Pot cover with cover button convenient to disassemble and assemble and cover button assembly of pot cover

Abstract

The utility model discloses a pot cover with a cover button convenient to disassemble and assemble, which comprises a cover body and the cover button, and is characterized in that a cover body embedding structure and a cover button embedding structure which are matched with each other are respectively arranged on the cover body and the cover button to form an embedding structure, so that the cover button is detachably embedded and fixed on the cover body through the embedding structure. The utility model further provides a cover button assembly in the pot cover. According to the pot cover, the structure that a cover button of an existing pot cover is fixed to a cover body through a screw joint structure is changed, the cover button is fixed through a detachable embedded structure, then the use and storage mode of a traditional pot cover is changed, during storage, the cover body and the cover button of the pot cover are separated, pot covers of various pots in a kitchen can be stacked in a concentrated mode or inserted into a storage rack, and the pot cover is convenient to use and store. When the pot cover is used, the cover button can be quickly mounted on the cover body for use through the embedded structure, so that the pot cover is suitable for the situation that various types of pots in a kitchen exist at present and pot bodies of a plurality of pots can be hung and stored, and a plurality of pot covers can be stably and compactly stored.

Description

Technical Field

[0001] The utility model belongs to the field of kitchenware and relates to a pot cover, in particular to a pot cover with a cover button which can be conveniently disassembled and assembled. Background Art

[0002] In the prior art, such as Figure 1 As shown, the pot cover includes a cover body 01 and a cover button 02, and the cover button 02 is generally permanently fixed to the cover body 01 by screws. In the past, pot covers were stored by covering the pot body. But now more and more pots are hung up when stored, and there are more and more pots in the new kitchens nowadays. When the pot body is hung for storage, the storage of the pot cover that matches it becomes a more troublesome thing. If multiple pot covers are stacked together, because there are cover buttons on them, storage will take up a large storage space, and the stacked pot covers are not stable. For existing pot covers, whether it is to separate the cover button and the cover body or to install them together, it is a more complicated process. Therefore, it is inconvenient to remove the cover buttons from the existing pot covers and collect them together. Utility Model Content

[0003] The purpose of the utility model is to improve the deficiencies of the prior art and provide a pot cover with a cover button that can be easily disassembled, so that the cover button and the cover body can be easily disassembled, so that the cover button can be removed when stored, reducing the space occupied by multiple pot covers when stored together and improving the storage stability, and the pot covers can also be conveniently combined for use.

[0004] Another object of the utility model is to provide a cover button assembly in the pot cover.

[0005] The purpose of the utility model is achieved in this way:

[0006] A pot cover with a cover button that can be easily disassembled and assembled comprises a cover body and a cover button, wherein the cover body and the cover button are respectively provided with a matching cover body interlocking structure or a cover body spiral structure and a cover button interlocking structure or a cover button spiral structure, thereby forming an interlocking structure or a spiral structure, and the cover button is detachably interlocked or screwed to the cover body through the interlocking structure or the spiral structure.

[0007] For the convenience of description, it is assumed that the side of the pot lid facing the pot body is the inner side, and the opposite side is the outer side.

[0008] In the pot cover, the interlocking structure may specifically be as follows:

[0009] The cover body embedding structure is arranged on a cover body embedding assembly, which includes an embedding piece located on the outside of the cover body and a fixing piece located on the inside of the cover body, both of which are fixed on the cover body through mounting holes arranged on the cover body, and the cover body embedding structure is arranged on the outer side of the embedding piece;

[0010] The cover button engaging structure is arranged on the inner end surface of the cover button, that is, on the cover button connecting end.

[0011] The mosaic structure can also be another situation:

[0012] The chimeric structure is that

[0013] The cover body interlocking structure is a cover button mounting hole on the cover body, and the cover button mounting hole is a non-circular hole; or,

[0014] The cover body interlocking structure comprises a cover body, an outer fixing piece and an inner fixing piece.

[0015] The cover body is provided with a connecting through hole;

[0016] The outer fixing member is an end cover arranged on the outer side of the cover body, the non-circular cover button mounting hole is arranged on the outer fixing member, an external tube is arranged on the inner side of the outer fixing member, and is matched and plugged with the connecting through hole on the cover body, and the end edge of the outer fixing member located on the outer side of the external tube is in contact with the outer surface of the cover body;

[0017] The inner fixing member is a sealing cover arranged inside the cover body, an inner tube is arranged on the outer end surface of the inner fixing member to match the outer tube on the outer fixing member, the outer tube and the inner tube are plugged and fixed to each other, the outer tube can be inserted into the inner tube, or the inner tube can be inserted into the outer tube, and the outer end edge of the inner tube of the inner fixing member is in contact with the inner surface of the cover body;

[0018] Fixing the outer fixing member with the cover button mounting hole to the cover body through the inner fixing member;

[0019] Matching the cover body interlocking structure with the non-circular cover button mounting hole, the cover button interlocking structure is a plug-in plate protruding on its inner side surface facing the cover body, and the plug-in plate is a cylinder with a non-circular cross-sectional shape to form an interlocking section. The maximum length of the cross-section of the interlocking section is less than the maximum length of the cover button mounting hole but greater than the minimum length of the cover button mounting hole, so that the plug-in plate can pass through the cover button mounting hole, and after the plug-in plate is rotated through a set angle, it is stuck on the cover body and cannot be pulled out, so that the cover button is fixed on the cover body.

[0020] In order to make the inner and outer fixing members fit better with the cover body, the bottom surface of the inner tube is indented a distance inward relative to the outer surface of the cover body, and / or the bottom surface of the outer tube is indented a distance inward relative to the inner side surface of the cover body.

[0021] Preferably, in the cover body interlocking structure, the non-circular cover button mounting hole is a non-circular hole shaped like a dumbbell. Accordingly,

[0022] In the cover button interlocking structure, the non-circular interlocking section on the plug-in board that protrudes outward is a dumbbell-shaped non-cylindrical body that is similar in shape to the mounting hole; or,

[0023] In the cover button interlocking structure, the plug board is inserted into the cover button mounting hole, accommodated in the inner pipe, and rotated at a set angle to be fixed on the end cover of the outer fixing member.

[0024] Preferably, in the cover body interlocking structure, the non-circular cover button mounting hole shaped like a dumbbell is: a small circular hole with a smaller diameter is used as a positioning hole in the middle, and two fan-shaped holes with two larger diameters and the same center are connected symmetrically on both sides of the center of the small circular hole to form a non-circular hole shaped like a dumbbell.

[0025] Preferably, a plurality of slots extending axially from the end surface of the inner tube by a portion of the tube length are provided on the side wall of the inner tube, so that the inner tube has radial elasticity and can be expanded and fixed in the outer tube when inserted into the outer tube.

[0026] Preferably, a recessed hole or a through hole for securing the cover button is provided next to the cover button mounting hole on the cover body or on the end cover of the outer fixing member connected to the cover body, and correspondingly, a protrusion is provided at a corresponding position on the opposite side of the plug board on the cover button, so that when the plug board is rotated to a set angle, the protrusion is inserted into the recessed hole or the through hole.

[0027] Specifically, the connecting through-hole on the cover body is a circular hole, a rectangular hole, or a polygonal hole.

[0028] Preferably, in the cover button interlocking structure, a connecting section is axially extended at the outer end of the protruding plug-in board, the outer contour of the connecting section is smaller than the cover button mounting hole, and its axial length d1 is equivalent to the axial length D1 of the cover button mounting hole. A convex shoulder is connected to the outer end of the connecting section, or a convex shoulder is separately connected to the outer end of the connecting section. A cylinder and an annular groove are respectively arranged on two adjacent end surfaces of the connecting section and the convex shoulder, and the cylinder is inserted into the annular groove. At the same time, a screw is added, and screw holes are arranged on the plug-in board and the connecting section, and screw holes are arranged on the convex shoulder. The screw connects the separate connecting section and the convex shoulder as a whole, and a spring is passed through the screw rod between the connecting section and the convex shoulder, and the spring is placed in the cylinder.

[0029] The outer contour of the shoulder is larger than the maximum length of the cover button mounting hole, so that when the plug-in board of the cover button is inserted into the cover button mounting hole, the shoulder abuts against the outer side surface of the cover body 1 or the cover of the outer fixing member, and the outside of the shoulder is a knob.

[0030] The utility model also provides a pot cover, which comprises a cover body and a cover button, wherein the cover button is fixed on the cover body through a cover body interlocking structure and a cover button interlocking structure.

[0031] The cover body is provided with a mounting hole,

[0032] The cover body engaging structure comprises an inner cover button fixing member, a closing cover, and an inner connecting pipe is arranged on an outer side of the closing cover facing the cover body.

[0033] The cover button interlocking structure is that an outer connecting pipe is provided on the inner side surface of the cover button facing the cover body, and a handle is provided on the other side surface of the cover button. The inner connecting pipe is inserted into the mounting hole of the cover body, and the outer peripheral edge of the inner connecting pipe on the outer side surface of the closed cover is fitted with the inner side surface of the cover body. The outer connecting pipe on the cover button is cooperatively inserted into the inner connecting pipe, and the outer peripheral edge of the outer connecting pipe on the inner side surface of the cover button is fitted with the outer side surface of the cover body, thereby the inner cover button fixing piece fixes the cover button to the cover body.

[0034] Preferably, a plurality of grooves are axially arranged on the tube wall of the inner connecting tube on the inner cover button fixing piece from its outer end inward, so that the tube wall of the inner connecting tube is elastic in the radial direction, and when the outer connecting tube of the cover button is inserted into the inner connecting tube, the inner connecting tube is propped up, so that the cover button is fixed more firmly.

[0035] Preferably, matching circumferential grooves are provided on the inner wall of the inner connecting pipe and the outer wall of the outer connecting pipe, so that the two are fixed more firmly.

[0036] The mounting hole on the cover body is non-circular, such as a rectangular hole or a polygonal hole, and the shapes of the inner pipe on the inner cover button fixing member and the outer pipe on the cover button that fit therewith match the shape of the mounting hole on the cover body.

[0037] There is another preferred solution for the chimeric structure:

[0038] The chimeric structure is as follows: it includes a cover button and a locking needle, the cover button includes a cover button shell, which is a cylinder, the outer end face of which is closed by the rear end cover, the inner end face is provided with a front end cover, the center of the front end cover is provided with a penetrating pinhole for the locking needle to be inserted, a non-circular boss is convexly provided on the outward end face of the front end cover to match the non-circular cover button mounting hole on the cover body, a handle slot is provided on the other end face of the front end cover, and a handle through-hole is provided on the side wall close to the rear end cover or on the rear end cover; a locking and unlocking structure of the locking needle is provided in the cover button shell, wherein one end of the unlocking handle is clamped in the handle slot, and the other end is exposed from the handle through-hole; the locking needle has a locking needle cap and a needle rod, the shape of the locking needle cap is the same as the size and shape of the boss, and it is staggered with the boss at a set angle and rests on the inner side of the cover body, or the locking needle cap is larger than the cover button mounting hole on the cover body, and the needle rod is inserted into the pinhole in the cover button shell and locked by the locking and unlocking structure.

[0039] The locking and unlocking structure can be: it includes a conical sleeve cap, a compression spring, an inner conical cylinder, a locking steel ball, an outer conical cylinder and an unlocking lifting handle, the conical sleeve cap is a conical cylinder, the small end of which is fixed on the inner side surface of the rear end cover of the cover button shell, the large end of the inner conical cylinder is inserted into the large end of the conical sleeve cap and pressed against the conical inner wall of the conical sleeve cap, the compression spring is placed between the conical sleeve cap and the inner conical cylinder, three locking steel balls can be radially movably embedded in the radial perforations on the conical side wall of the inner conical cylinder, a boss is provided at the center of the end cover at the front end of the inner conical cylinder, a pinhole is provided on the boss, the large end of the outer conical cylinder is inserted into the cover button shell and is combined and fixed with the large end of the conical sleeve cap, a cover plate is provided on the small end in front of it, and a perforation is provided on it The boss on the inner conical tube passes through, and the conical side wall of the outer conical tube limits the part of the locking steel ball exposed outside the inner conical tube; the unlocking and pulling handle is a rod body, and the cross bar at one end of it is embedded in the handle slot on the front end cover for limiting, and a cross bar pinhole is set on the cross bar. The inner conical tube is fixedly connected to the cross bar or pressed between the front end cover and the boss (C141) of the cover button shell by a spring. The cross bar is connected to one end of a connecting rod, and the connecting rod is placed in the cover button shell and outside the outer conical tube and the sleeve cap. The other end of the connecting rod passes through the side wall of the cover button shell as a handle, or the cross bar and the cover button shell are provided with a hinge fulcrum, and the other end of the connecting rod is connected to the button and passes through the handle hole on the rear end cover of the cover button shell. When in use, the operating handle can drive the inner conical cylinder to move, so that it compresses the compression spring and moves toward the large end of the outer conical cylinder, and the locking steel ball moves radially outward to unlock the locking pin, which can be pulled out to separate the cover button and the locking pin, thereby removing the cover button assembly from the cover body.

[0040] The spiral structure is:

[0041] The cover body spiral structure is arranged on a cover body spiral assembly, the cover body spiral assembly comprises a spiral member located on the outside of the cover body and a fixing member located on the inside of the cover body, both of which are fixed on the cover body through a mounting hole arranged on the cover body, and the cover body spiral structure is arranged on the outer side of the spiral member;

[0042] The cover button spiral structure is arranged on the inner end surface of the cover button, that is, on the cover button connecting end.

[0043] or,

[0044] The spiral structure comprises a cover body (B1) and a cover button assembly comprising a screw (B2), a connecting piece (B3) and a cover button (B4); a non-circular through hole (B11) is arranged in the middle of the cover body (B1); an inserting portion (B31) of the connecting piece (B3) inserted into the through hole (B11) of the cover body (B1) has a non-circular cross section and matches the through hole on the cover body; a supporting portion (B32) with a circular cross section and a diameter greater than the long axis of the through hole (B11) on the cover body is extended behind the inserting portion (B31); In order to make the connecting member (B3) abut against the cover body (B1), a screw hole (B33) is arranged at the center of the connecting member (B3), the end face of the cover button (B4) adjacent to the connecting member (B3) matches the adjacent end face of the connecting member (B3), a screw hole (B41) is also arranged at the center of the cover button (B4), the screw (B2) connects the connecting member (B3) and the cover button (B4) into one body, and the outer contour of the nut (B2a) is the same as that of the inserting portion (B31), or is larger than the outer contour of the inserting portion (B31).

[0045] or,

[0046] The spiral structure comprises a screw (B2) and a cover button (B4); the outer contour of the nut (B2a) of the screw (B2) is larger than the mounting hole (B11) of the cover body; a non-circular boss (B2b) is provided on one side of the screw rod of the nut or the inner side of the cover button, matching the mounting hole (B11) on the cover body; the outer end face of the nut and the inner end face of the cover button (B4) fit the inner and outer side faces of the cover body (B1); and a screw hole (B41) is provided on the cover button.

[0047] A fixing structure is arranged between the engaging member or the screw member and the fixing member.

[0048] Preferably, the interlocking structure may be a sliding interlocking structure or a rotating interlocking structure.

[0049] Specifically, the sliding interlocking structure may be:

[0050] The cover body embedding structure provided on the outer end surface of the embedding piece in the cover body embedding assembly is two mutually parallel convex plug-in parts or concave plug-in grooves;

[0051] The cover button engaging structure is an inserting groove or inserting portion arranged on the inner end surface of the cover button, which matches the inserting portion or inserting groove on the engaging piece, and the cover button and the cover body are detachably connected by inserting the inserting portion in the slot portion.

[0052] Specifically:

[0053] The plug-in portion may be two mutually parallel bent ridges arranged on the corresponding end surface, and correspondingly, the plug-in groove is a groove arranged on the corresponding end surface and corresponding to the mutually parallel bent ridges.

[0054] The plug-in portion may also be a protrusion on the corresponding end face, at least two opposite edges of which form outward ridges and are parallel to each other. Correspondingly, the plug-in slot is a slot arranged on the corresponding end face corresponding to the ridge, and its two opposite side walls match the two parallel edges of the protrusion. The port on at least one side of the plug-in slot is placed on the edge of the corresponding end face to form a notch.

[0055] Specifically, the rotating interlocking structure may be:

[0056] The cover body embedding structure provided on the outer end surface of the embedding piece in the cover body embedding assembly is a protruding plug-in plate, which is non-circular in shape, or a plug-in hole cavity provided on the outer end surface of the embedding piece, and a non-circular plug-in hole is provided at the end of the plug-in hole cavity; correspondingly, the cover button embedding structure is a plug-in hole cavity provided on the end surface of the cover button connecting end of the cover button, and a non-circular plug-in hole is provided on the plug-in hole cavity, or a protruding non-circular plug-in plate provided on the end surface of the cover button connecting end of the cover button;

[0057] The maximum length of the plug board is less than the maximum length of the plug hole but greater than the minimum length of the plug hole, so that the plug board can pass through the plug hole and enter the plug hole cavity. After the plug board rotates at an angle, it is stuck in the plug hole and cannot be pulled out.

[0058] A preferred solution for the plug hole and the plug board is that they are of similar shapes, for example, a smaller plug board and a larger plug hole are similar triangles, or a smaller plug board and a larger plug hole are similar ovals, or a smaller plug board and a larger plug hole are similar rectangles.

[0059] Preferably, the spiral structure may include a stud and a screw hole, wherein the stud is convexly arranged on the outer side surface of the spiral component, or convexly arranged on the inner end surface of the cover button; the screw hole is recessed on the inner end surface of the cover button, or recessed on the outer side surface of the spiral component, and the cover button is detachably connected to the fitting or spiral component through the matching threaded structure of the stud and the screw hole.

[0060] Preferably, to match the spiral structure, the mounting hole on the cover body is non-circular in shape.

[0061] The spiral structure is preferably a spiral connection structure with a locking and anti-retraction function.

[0062] Preferably, the spiral connection structure with the locking and anti-retraction structure is:

[0063] The stud is protruding on the inner end surface of the cover button or the outer end surface of the spiral member on the cover body spiral assembly. It is a cylinder with at least two radial cross columns evenly distributed on its side circumference. Correspondingly, the screw hole structure is as follows: a vertical circular groove is arranged on the outer side surface of the spiral member on the cover body spiral assembly or the inner side surface of the cover button, a depression is arranged at the center of the groove bottom surface of the circular groove corresponding to the cylinder of the stud, and a vertical groove corresponding to the number and position of the cross columns on the stud is arranged on the side wall of the circular groove for vertical lifting and lowering. A spiral groove is extended along the vertical groove in the circumferential direction, and at the end of the spiral groove, a curved groove section opposite to the lifting direction of the spiral groove is smoothly transitioned to match the radial cross column.

[0064] Preferably, the end of the spiral groove has a curved groove section opposite to the lifting direction of the spiral groove for locking and preventing retreat.

[0065] When the cover button and the cover body are combined, for example, the stud on the cover button is inserted into the circular groove of the spiral member on the cover body, and the radial cross column is placed in the vertical groove. The cover button can be rotated to be screwed with the spiral body on the cover body. When the spiral structure is screwed into place, the radial cross column is stuck in the curved groove section. During use, the spiral structure will not loosen by slightly touching the cover button. When the cover button is to be removed from the cover body, the cover button is rotated in the opposite direction. Because the curved groove section and the spiral groove are smoothly transitioned, the radial cross column can slide out of the curved groove section and enter the spiral groove. The cover button can be removed from the cover body by rotating it an angle.

[0066] On the cover body, the fixing structure between the engaging member or the spiral member and the fixing member may be:

[0067] One end of the fixing member has a fixing member flange, the fixing member flange is connected to a fixing member cylinder, the fixing member cylinder is provided with a clamping structure, the fixing member cylinder is inserted into the mounting hole of the cover body, and the fixing member flange is against the inner side surface of the cover body;

[0068] The inner end of the engaging part or the spiral part facing the cover body is provided with a fixing portion matching the fixing structure, which is inserted into the fixing part cylinder and fixed to the fixing part cylinder of the fixing part through the fixing structure. A flange is provided on the outer side facing away from the cover body, and a cover body engaging structure is arranged on the end face of the flange, and the flange abuts against the outer side face of the cover body.

[0069] Specifically,

[0070] The fixing structure of the engaging member or the spiral member and the fixing member may be:

[0071] The diameter of the fixing member cylinder in the fixing member is smaller than the aperture of the mounting hole on the cover body, one end of the inner side of the fixing member cylinder is closed, the outer edge of the closing plate thereon is larger than the aperture of the mounting hole to form an annular retaining edge constituting the fixing member flange for being clamped on the inner side of the cover body, and the side wall of the fixing member cylinder is provided with a plurality of slots extending from the end surface of the outer end thereof toward the closing plate and parallel to the axis of the fixing member cylinder, so that the side wall of the fixing member cylinder has a retractable elasticity;

[0072] The fixing portion on the insert or spiral part has a cylinder, whose outer diameter matches the inner diameter of the fixing part cylinder, so that when the cylinder is inserted into the fixing part cylinder, the fixing part cylinder is expanded, and when the fixing part and the insert or spiral part respectively penetrate the mounting holes from the inner and outer sides of the cover body toward each other, the cylinder of the insert or spiral part is inserted into the fixing part cylinder and fastened into one by the restoring elastic force of the fixing part cylinder.

[0073] Preferably, in order to make the combination of the insert or spiral part and the fixing part more firmly, a matching toothed structure is provided on the inner wall of the fixing part cylinder of the fixing part and the outer wall of the cylinder of the insert or spiral part to form an anti-loosening structure. The toothed structure is preferably provided on the entire contact surface of the cylinder of the fixing part and the cylinder of the insert or spiral part.

[0074] An annular groove is provided on the end face of the fixing member cylinder body facing the flange of the insert or spiral member to match the end face of the fixing member cylinder body. An annular groove can also be provided on the bottom face of the fixing member cylinder body of the fixing member, i.e., the closing plate, to match the end face of the cylinder body on the insert or spiral member. The function of the annular groove is that when the thickness of the cover body is different, the insertion depth of the cylinder body of the insert or spiral member and the cylinder body of the fixing member can be adjusted through the annular groove, so that the flange of the insert or spiral member and the flange of the fixing member are tightly fitted with the two side faces of the cover body, so that the cover body insert assembly or cover body spiral assembly of a certain size can be used to adapt to covers of different thicknesses.

[0075] Preferably, the cover body engaging assembly or the cover body spiral assembly further includes an elastic sealing gasket, which is arranged between the fixing member and the inner surface of the cover body.

[0076] The elastic pad can be a rubber flat pad. Preferably, the elastic sealing pad includes a gasket cylinder, one end of which has a sealing pad flange protruding radially outward. The gasket cylinder in the sealing pad is inserted into the mounting hole of the cover body from the inner side of the cover body and is located outside the fixing member cylinder. The sealing pad flange abuts against the inner side surface of the cover body, and the fixing member flange abuts against the sealing pad flange.

[0077] On the cover body, the fixing structure between the embedding part or spiral part and the fixing part can also be: the fixing part is a screw, the embedding part or spiral part is a cylinder with a flange, a through hole is arranged on the flange to communicate with the cylinder, a thread is arranged on the inner wall of the through hole, and an embedding structure or a spiral structure is arranged on the outer end face of the flange of the embedding part or spiral part, the embedding part or spiral part is against the outer side surface of the cover body, and the fixing part, i.e., the screw, passes through the inner side surface of the cover body through the mounting hole, and is screwed into the internal thread of the embedding part or spiral part so that the embedding part or spiral part is fixed on the cover body. It can also be that: the chimeric part or spiral part includes a cylinder with a flange, a through hole is arranged on the flange to communicate with the cylinder, and also includes a hollow internal threaded rod, which is inserted into the through hole, and the fixing part is a screw, which passes through the inner side surface of the cover body through the mounting hole, is inserted into the hollow internal threaded rod and is screwed and fixed thereto, and a cover body chimeric structure or a cover body spiral structure is arranged on the outer end face of the flange of the chimeric part or spiral part.

[0078] Another object of the utility model is to provide a cover button assembly in a pot lid with an easily detachable cover button, which comprises a cover body interlocking structure or a cover body spiral structure and a cover button interlocking structure or a cover button spiral structure, wherein the cover button interlocking structure or the cover button spiral structure is arranged on the cover button, and the cover body interlocking structure or the cover body spiral structure matches the cover button interlocking structure or the spiral structure, thereby forming an interlocking structure or a spiral structure.

[0079] The chimeric structure is:

[0080] The cover body embedding structure is arranged on a cover body embedding assembly, the cover body embedding assembly comprises an embedding piece and a fixing piece, and the cover body embedding structure is arranged on the outer side surface of the embedding piece;

[0081] The cover button interlocking structure is arranged on the inner end surface of the cover button, that is, on the cover button connecting end; or,

[0082] The cover body embedding structure includes an outer fixing piece and an inner fixing piece.

[0083] The outer fixing member is an end cover, a non-circular cover button mounting hole is arranged on the outer fixing member, and an external pipe is arranged on the inner side of the outer fixing member;

[0084] The inner fixing member is a cover, and an inner tube is arranged on the outer end surface of the inner fixing member to match the outer tube on the outer fixing member, so that the inner tube is inserted into the outer tube;

[0085] Fixing the outer fixing member with the cover button mounting hole to the cover body through the inner fixing member;

[0086] The cover button interlocking structure is a plug-in board protruding on the inner side surface, and the plug-in board is a non-circular column in cross section, forming an inserting section, and the maximum length of the cross section of the inserting section is less than the maximum length of the cover button mounting hole but greater than the minimum length of the cover button mounting hole, so that the plug-in board can pass through the cover button mounting hole, and the plug-in board is stuck on the cover body after rotating a set angle and cannot be pulled out, so that the cover button is fixed on the cover body;

[0087] The bottom surface of the inner tube is indented inwardly by a distance relative to the outer side surface of the cover body, and / or the bottom surface of the outer tube is indented inwardly by a distance relative to the inner side surface of the cover body, or,

[0088] The cover button interlocking structure comprises a pin shaft (D201), a connecting cover (D202), a cover button member (D203), a spring (D204) and a screw (D205). The end of the pin shaft (D201) is a shaft cap (D201a) which acts as a plug-in plate. The shaft cap (D201a) is connected to the outside as a connecting portion (D201b), a convex shoulder (D201c) and a rectangular section (D201d). An axial screw hole is arranged on the outer end surface of the pin shaft. The inner side of the connecting cover (D202) is a conical cover (D202a). The outer end surface is a partition (D202b). A through hole is arranged on the partition (D202b). A cylindrical body (D202c) is extended from the outer side of the partition. The cover button member (D203) is a cone. The inner end surface is A pit (D203a) is provided, the axial depth of the pit is greater than the length of the cylindrical body on the connecting cover, a rectangular blind hole (D203b) is provided on the bottom surface of the pit, a screw hole (D203c) is provided on the bottom surface of the blind hole, the pin shaft, the connecting cover and the cover button member are connected by screws (D205), the boss (D201c) of the pin shaft (D201) abuts against the partition (D202b) of the connecting cover (D202), the rectangular section (D201d) is matched and inserted into the blind hole (D203b) of the cover button member (D203), the cylindrical body on the connecting cover (D202) is inserted into the pit of the cover button member, one end of the spring (D204) abuts against the partition (D202b) of the connecting cover, and the other end abuts against the bottom surface of the pit of the cover button member (D203); or

[0089] The cover button interlocking structure is a cover button assembly, comprising a cover button member (C1) and a locking pin (C2). The cover button member comprises a cover button shell (C11), which is a cylinder, the outer end face of which is closed by a rear end cover (C111), and the inner end face is provided with a front end cover (C112), a needle hole penetrating through the center of the front end cover for the insertion of the lock needle, a non-circular boss convexly arranged on the end face of the front end cover facing the outside of the cylinder body to match the non-circular cover button mounting hole on the cover body, a handle clamping groove (C112d) is arranged on the end face of the front end cover facing the inside of the cylinder body, and a handle through hole is arranged on the side wall close to the rear end cover or the rear end cover; a locking and unlocking structure of the lock needle is arranged in the cover button shell, wherein one end of the unlocking handle is clamped in the handle clamping groove, and the other end is exposed from the handle through hole; the lock needle has a lock needle cap and a needle rod, the lock needle cap has the same shape and size as the boss, and is staggered with the boss at a set angle to abut against the inner side face of the cover body, or the lock needle cap is larger than the cover button mounting hole on the cover body, and the needle rod is inserted into the pinhole in the cover button shell and locked by the locking and unlocking structure.

[0090] The spiral structure may also be:

[0091] The cover body spiral structure is arranged on a cover body spiral assembly, the cover body spiral assembly comprises a spiral member and a fixing member, and the cover body spiral structure is arranged on the outer side surface of the spiral member;

[0092] The cover button spiral structure is arranged on the inner end surface of the cover button, that is, on the cover button connecting end, and is matched and combined with the cover body spiral structure; or,

[0093] The spiral structure may also be: a cover button assembly including a screw (B2), a connecting piece (B3) and a cover button (B4), wherein the nut (B2a) of the screw and the inserting portion (B31) of the connecting piece (B3) inserted into the through hole (B11) of the cover body (B1) both have non-circular cross-sections and the same cross-sections, and a supporting portion (B32) is extended behind the inserting portion (B31) for allowing the connecting piece (B3) to abut against the cover body (B1), and the connecting piece (B3) is A screw hole (B33) is provided at the center of the connecting piece (B3), an end face of the cover button (B4) adjacent to the connecting piece (B3) matches an adjacent end face of the connecting piece (B3), a screw hole (B41) is also provided at the center of the cover button (B4), the screw (B2) connects the connecting piece (B3) and the cover button (B4) into one body, and the outer contour of the nut (B2a) is the same as that of the inserting portion (B31), or is larger than the outer contour of the inserting portion (B31); or,

[0094] The spiral structure may also include a screw (B2) and a cover button (B4), wherein the outer contour of the nut (B2a) of the screw (B2) is larger than the mounting hole (B11) of the cover body, a non-circular boss (B2b) is provided on one side of the screw rod of the nut, and a screw hole (B41) is provided on the cover button.

[0095] The interlocking structure is a sliding interlocking structure or a rotating interlocking structure; or,

[0096] The spiral structure comprises a stud and a screw hole, wherein the stud is convexly arranged on the outer side surface of a screw member on a cover body spiral assembly in the cover body spiral structure, or convexly arranged on the inner side end surface of the cover button; the screw hole is concavely arranged on the inner side end surface of the cover button, or concavely arranged on the outer side surface of the screw member, and the cover button is detachably connected to the fitting member or the screw member through the threaded structure matching the stud and the screw hole; and / or,

[0097] Matching the spiral structure, the mounting hole on the cover body is non-circular; and / or,

[0098] A fixing structure is provided between the engaging member or the spiral member and the fixing member; or,

[0099] In the cover body interlocking structure, the non-circular cover button mounting hole is a non-circular hole shaped like a dumbbell. Accordingly,

[0100] In the cover button interlocking structure, the non-circular interlocking section on the plug-in board that protrudes outward is a dumbbell-shaped non-cylindrical body that is similar in shape to the mounting hole; or,

[0101] In the cover button interlocking structure, the plug board is inserted into the cover button mounting hole, accommodated in the external tube, and fixed on the end cover of the external fixing member by rotating a set angle; and / or,

[0102] The side wall of the inner tube is provided with a plurality of slots extending axially from the end surface of the inner tube by a portion of the length of the tube section, so that the inner tube has radial elasticity and can be expanded and fixed in the outer tube when inserted into the outer tube, and / or,

[0103] A concave hole or a through hole for clamping the cover button is provided next to the cover button mounting hole on the cover body or on the end cover of the outer fixing piece connected to the cover body, and correspondingly, a protrusion is provided at a corresponding position on the opposite side of the plug board on the cover button, so that when the plug board is rotated to a set angle, the protrusion is clamped into the concave hole or the through hole; and / or,

[0104] The connecting through-hole on the cover body is a circular hole or a rectangular hole; and / or,

[0105] In the cover button interlocking structure, a connecting section is axially extended at the outer end of the protruding plug-in board, the outer contour of the connecting section is smaller than the cover button mounting hole, and its axial length d1 is equivalent to the axial length D1 of the cover button mounting hole. A convex shoulder is connected to the outer end of the connecting section, or a convex shoulder is separately connected to the outer end of the connecting section. A cylinder and an annular groove are respectively arranged on the two adjacent end surfaces of the connecting section and the convex shoulder, and the cylinder is inserted into the annular groove. At the same time, a screw is added, and screw holes are arranged on the plug-in board and the connecting section, and screw holes are arranged on the convex shoulder. The screw connects the separate connecting section and the convex shoulder as a whole, and a spring is passed through the screw rod between the connecting section and the convex shoulder, and the spring is placed in the cylinder;

[0106] The outer contour of the convex shoulder is larger than the maximum length of the cover button mounting hole, so that when the plug-in board of the cover button is inserted into the cover button mounting hole, the convex shoulder abuts against the outer side surface of the cover of the cover body or the outer fixing member, and the outer side of the convex shoulder is a knob; or,

[0107] The locking and unlocking structure comprises a conical sleeve cap (C12), a compression spring (C13), an inner conical cylinder (C14), a locking steel ball (C15), an outer conical cylinder (C16) and an unlocking lifting handle. The conical sleeve cap is a conical cylinder, the small end of which is fixed on the inner side surface of the rear end cover of the cover button shell, the large end of the inner conical cylinder is inserted into the large end of the conical sleeve cap and pressed against the conical inner wall of the conical sleeve cap, the compression spring is placed between the conical sleeve cap and the inner conical cylinder, the three locking steel balls are radially movably embedded in the radial perforations (C14a) on the conical side wall of the inner conical cylinder, a boss (C141) is arranged at the center of the end cover at the front end of the inner conical cylinder, the boss is provided with a pinhole (C141a), the large end of the outer conical cylinder is inserted into the cover button shell and is combined and fixed with the large end of the conical sleeve cap, and a cover plate (C16) is arranged on the small end in front of the outer conical cylinder. 1), a through hole (161a) is arranged on the cover plate for the boss on the inner conical tube to pass through, and the conical side wall of the outer conical tube limits the part of the locking steel ball exposed outside the inner conical tube; the unlocking and pulling handle is a rod body, and the cross bar (C17a) at one end of the rod body is embedded in the handle slot on the front end cover for limiting, and a cross bar pinhole is arranged on the cross bar, the inner conical tube is fixedly connected to the cross bar or pressed between the front end cover and the boss (C141) of the cover button shell by the compression spring, the cross bar is connected to one end of a connecting rod, the connecting rod is placed in the cover button shell and on the outside of the outer conical tube and the sleeve cap, and the other end of the connecting rod is used as a handle to pass through the side wall of the cover button shell, or the cross bar and the cover button shell are provided with a hinge fulcrum, and the other end of the connecting rod is connected to the button (C18c) and passes through the handle through hole on the rear end cover of the cover button shell.

[0108] The cover body embedding structure provided on the outer end surface of the embedding piece in the cover body embedding assembly is a mutually parallel external convex plug-in portion or an internal concave plug-in groove;

[0109] The cover button engaging structure is an inserting groove or inserting portion arranged on the inner side end surface of the cover button, which matches the inserting portion or inserting groove on the engaging member; the cover button and the cover body are detachably connected by inserting the inserting portion in the inserting groove; or,

[0110] The rotating intercalation structure is:

[0111] The cover body embedding structure provided on the outer end surface of the embedding piece in the cover body embedding assembly is a protruding plug-in plate, which is non-circular in shape, or a plug-in hole cavity provided on the outer end surface of the embedding piece, and a non-circular plug-in hole is provided at the end of the plug-in hole cavity; correspondingly, the cover button embedding structure is a plug-in hole cavity provided on the end surface of the cover button connecting end of the cover button, and a non-circular plug-in hole is provided on the plug-in hole cavity, or a protruding non-circular plug-in plate provided on the end surface of the cover button connecting end of the cover button;

[0112] The maximum length of the plug board is less than the maximum length of the plug hole but greater than the minimum length of the plug hole, so that the plug board can pass through the plug hole and enter the plug hole cavity, and the plug board is stuck in the plug hole and cannot be pulled out after turning an angle; or,

[0113] The spiral structure is a spiral connection structure with a locking and anti-retraction structure; and / or,

[0114] On the cover body interlocking structure or spiral structure, the fixing structure between the interlocking member or spiral member and the fixing member is:

[0115] One end of the fixing member has a fixing member flange, the fixing member flange is connected to a fixing member cylinder, the fixing member cylinder is provided with a clamping structure, the fixing member cylinder is inserted into the mounting hole of the cover body, and the fixing member flange is against the inner side surface of the cover body.

[0116] The insert or spiral piece is provided with a fixing portion matching the fixing structure at one end of the inner side of the cover body, which is inserted into the fixing piece cylinder and fixed to the fixing piece cylinder of the fixing piece through the fixing structure, and a flange is provided on the outer side facing away from the cover body, and the cover body inserting structure is provided on the end face of the flange, and the flange abuts against the outer side face of the cover body; or, on the cover body inserting structure or spiral structure, the fixing structure between the insert or spiral piece and the fixing piece is: the fixing piece is a screw, and the insert or spiral piece is a cylinder with a flange, a through hole is provided on the flange to communicate with the cylinder, a thread is provided on the inner wall of the through hole, and the convex part of the insert or spiral piece A chimeric structure or a spiral structure is arranged on the outer end surface of the edge, and the chimeric piece or the spiral piece abuts against the outer side surface of the cover body, and the fixing piece, i.e., the screw, passes through the inner side surface of the cover body through the mounting hole, and is screwed with the internal thread of the chimeric piece or the spiral piece so that the chimeric piece or the spiral piece is fixed to the cover body; or, the chimeric piece or the spiral piece includes a cylinder with a flange, a through hole is arranged on the flange to communicate with the cylinder, and also includes a hollow internally threaded rod, which is inserted into the through hole, and the fixing piece is a screw, which passes through the inner side surface of the cover body through the mounting hole, is inserted into the hollow internally threaded rod and is screwed and fixed thereto, and a cover chimeric structure or a cover spiral structure is arranged on the outer end surface of the flange of the chimeric piece or the spiral piece; or,

[0117] In the cover body interlocking structure, the non-circular cover button mounting hole shaped like a dumbbell is: a small circular hole with a smaller diameter is used as a positioning hole in the middle, and two fan-shaped holes with two larger diameters and the same center are connected symmetrically on both sides of the center of the small circular hole to form a non-circular hole shaped like a dumbbell.

[0118] In the sliding intercalation structure,

[0119] The plug-in portion is two mutually parallel bent ridges arranged on the corresponding end surface, and correspondingly, the plug-in groove is a groove arranged on the corresponding end surface and corresponding to the bent ridges and parallel to each other; or,

[0120] The plug-in portion is a convex block on the corresponding end surface, and at least two opposite edges thereof form outward convex ridges and are parallel to each other. Correspondingly, the plug-in slot is a slot arranged on the corresponding end surface and corresponding to the convex ridge, and two opposite side walls thereof match the two parallel edges of the convex block, and a port on at least one side of the plug-in slot is placed on the edge of the corresponding end surface to form a notch; or,

[0121] The spiral connection structure with a clamping and anti-retraction structure is as follows: the stud is convexly arranged on the inner end surface of the cover button, which is a cylinder, and at least two radial transverse columns are evenly distributed on its side circumference. Correspondingly, the screw hole structure is as follows: a vertical circular groove is arranged on the outer side surface of the spiral member on the cover body spiral assembly or the inner side end surface of the cover button, and the center of the groove bottom surface of the circular groove is arranged with a depression corresponding to the cylindrical body of the stud, and a vertical groove corresponding to the number and position of the transverse columns on the stud is arranged on the side wall of the circular groove, and the vertically rising and falling vertical groove is arranged along the circumferential direction of the vertical groove. A downwardly curved spiral groove is extended, and at the lowest point of the spiral groove, a curved groove section opposite to the rising and falling direction of the spiral groove is smoothly transitioned to match the radial transverse column.

[0122] To prevent withdrawal by means of a card fastening; and / or,

[0123] In the rotating inserting structure, the plug hole and the plug plate are of similar shapes.

[0124] The similar shapes are similar triangles with smaller plug boards and larger plug holes, or similar elliptical shapes with smaller plug boards and larger plug holes, or similar rectangular shapes with smaller plug boards and larger plug holes.

[0125] The fixing structure of the engaging member or the spiral member and the fixing member is:

[0126] One end of the inner side of the fixing member cylinder in the fixing member is closed, and the outer edge of the closing plate thereon forms an annular retaining edge to constitute the fixing member flange for being clamped on the inner side of the cover body, and the side wall of the fixing member cylinder is provided with a plurality of slots extending from the end surface of the outer end thereof toward the closing plate and parallel to the axis of the fixing member cylinder, so that the side wall of the fixing member cylinder has a retractable elasticity;

[0127] The engaging part or spiral part has a cylinder, whose outer diameter matches the inner diameter of the fixing part cylinder, so that the fixing part cylinder is expanded when the cylinder is inserted into the fixing part cylinder. When the fixing part and the engaging part or spiral part respectively penetrate the mounting holes from the inner side and the outer side of the cover body, the cylinder of the engaging part or spiral part is inserted into the fixing part cylinder and fastened into one by the restoring elastic force of the fixing part cylinder.

[0128] A matching toothed structure is provided on the inner wall of the fixing member cylinder of the fixing member and the outer wall of the inserting member or the spiral member cylinder to form an anti-loosening structure; and / or,

[0129] An annular groove is provided on the end surface of the flange of the engaging member or the spiral member facing the fixing member cylinder to match the end surface of the fixing member cylinder; and / or,

[0130] An annular groove is provided on the bottom surface of the fixing member cylinder of the fixing member, i.e., the closing plate, to match the end surface of the cylinder on the insert or the spiral member, so that the end plate on the insert or the spiral member can fit and fix with the outer side surface of the cover body when matching with covers of different thicknesses; and / or,

[0131] The cover body embedding assembly or the cover body spiral assembly further includes an elastic sealing gasket, which is arranged between the fixing member and the inner surface of the cover body; or,

[0132] The cover body mosaic assembly or the cover body spiral assembly also includes an elastic sealing gasket, which includes a gasket cylinder, one end of which has a sealing gasket flange protruding radially outward, the gasket cylinder in the sealing gasket is inserted into the mounting hole of the cover body from the inner side of the cover body and is located outside the fixing part cylinder, the sealing gasket flange abuts against the inner side surface of the cover body, and the fixing part flange on the fixing part abuts against the sealing gasket flange.

[0133] Another cover button assembly comprises a cover button, wherein the cover button is fixed on the cover body through a cover body interlocking structure and a cover button interlocking structure.

[0134] The cover body engaging structure comprises an inner cover button fixing member, a closing cover, and an inner connecting pipe is arranged on an outer side of the closing cover facing the cover body.

[0135] The cover button interlocking structure is that an outer connecting pipe is arranged on the inner side surface of the cover button facing the cover body, and a handle is arranged on the other side surface of the cover button. The inner connecting pipe is inserted into the mounting hole of the cover body, and the outer peripheral edge of the inner connecting pipe on the outer side surface of the closed cover is fitted with the inner side surface of the cover body, and the outer connecting pipe on the cover button is inserted into the inner connecting pipe in a matching manner.

[0136] A plurality of slots are axially arranged inwardly from the outer end of the tube wall of the inner tube on the inner cover button fixing member, so that the tube wall of the inner tube has elasticity in the radial direction. When the outer tube of the cover button is inserted into the inner tube, the inner tube is propped up, so that the cover button is fixed more firmly; and / or,

[0137] Matching circumferential grooves are provided on the inner wall of the inner connecting pipe and the outer wall of the outer connecting pipe so that the two are more firmly fixed; and / or,

[0138] The mounting hole on the cover body is non-circular in shape, and the shapes of the inner connecting pipe on the inner cover button fixing piece and the outer connecting pipe on the cover button that fit therewith match the shape of the mounting hole on the cover body.

[0139] The utility model provides a pot cover with a conveniently detachable cover button and a cover button assembly therein, which changes the structure of the existing pot cover in which the cover button is fixed to the cover body by structures such as screw connection, which is inconvenient to detach and assemble. The cover button is fixed by a detachable interlocking structure, thereby changing the use and storage method of the traditional pot cover. When storing, the cover body and the cover button of the pot cover are separated by the conveniently detachable structure, so that the cover bodies of the pot lids of various pots in the kitchen can be stacked together or inserted on a storage rack. When in use, the cover button can be quickly installed on the cover body by the interlocking structure for use, thus adapting to the problem that there are many types of pots in the current kitchen and the pot bodies of many pots need to be hung for storage, and a plurality of pot covers need to be stored together to occupy a large space, and the cover bodies of the pot covers stacked together can be stored more stably.

[0140] The utility model is described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0141] Figure 1 This is a schematic diagram of the pot cover structure in the prior art;

[0142] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the pot cover of Example 1 provided by the utility model;

[0143] Figure 3 A schematic cross-sectional view of the pot cover of Example 1 provided by the utility model in a use state;

[0144] Figure 4 for Figure 3 A partial enlarged structural diagram of part A;

[0145] Figure 5 for Figure 4 The chimeric assembly and the exploded structural diagram shown;

[0146] Figure 6 It is a cross-sectional structural schematic diagram of the cover button and the cover body with the cover body fitting assembly of Example 1 being separated;

[0147] Figure 7 It is a schematic cross-sectional structural diagram of the exploded cover button and the engaging member of another sliding interlocking structure in Example 2;

[0148] Figure 8 A schematic cross-sectional exploded structural diagram of a rotary interlocking structure formed by a cover body interlocking structure and a cover button interlocking structure in a pot cover of Example 3 provided by the utility model;

[0149] Fig. 9 for Figure 8 A schematic diagram of the structure of the middle cover button from the right side;

[0150] Fig.10 for Figure 8 A schematic diagram of the structure of the left side of the middle fitting;

[0151] Fig.11 for Figure 8 A schematic diagram of the top view of the structure of the middle engaging member;

[0152] Fig.12 This is a schematic structural diagram of the cover button in Example 4 provided by the present utility model, which faces the inner end surface of the inserting member;

[0153] Fig.13 A schematic structural diagram of the outer end surface of the engaging member facing the cover button in Example 4 provided in this embodiment;

[0154] Fig.14 A schematic structural diagram of a cover body with a cover body interlocking assembly in Example 5 provided by the utility model;

[0155] Fig.15 for Fig.14 A schematic diagram of a three-dimensional exploded structure of Example 5;

[0156] Fig.16 Embodiment 6 provided by the present utility model shows a schematic diagram of the structure of a cover button in a spiral structure;

[0157] Fig.17 for Fig.16 A schematic diagram of the structure of the spiral member in the cover spiral assembly in Example 6 is shown;

[0158] Fig.18 Embodiment 7 provided by the present utility model shows a schematic diagram of the structure of a cover button in another spiral structure;

[0159] Fig.19 for Fig.18 A schematic diagram of the structure of the spiral member in the cover spiral assembly in Example 7 is shown;

[0160] Fig. 20 for Fig.18 and Fig.19 The schematic diagram of the three-dimensional exploded structure of Example 7 is shown;

[0161] Fig.21 This is a schematic diagram of the main structure of the cover body of the pot cover of Example 7 provided by the utility model;

[0162] Fig. 22 for Fig.21 The left side structural schematic diagram of the cover body shown;

[0163] Fig.23 This is a schematic diagram of the main structure of the cover button in the pot cover of Example 7;

[0164] Fig.24 for Fig.23 A schematic diagram of the left side structure of the cover button shown;

[0165] Fig.25 for Fig.23 A rear structural schematic diagram of the cover button shown;

[0166] Figure 26 to Figure 28 This is a schematic diagram of the combination of the cover body and the cover button in Example 7;

[0167] Fig.29 This is a schematic diagram of the three-dimensional exploded structure of the pot cover of Example 8 provided by the utility model;

[0168] Fig.30 It is a schematic diagram of the cross-sectional structure of the pot cover of Example 8, showing the cover button being inserted into place on the cover body and being locked in two positions after being rotated to a set angle;

[0169] Fig.31 This is a schematic diagram of the inner structure of the cover body embedded structure in the pot cover of Example 8;

[0170] Fig.32 This is a schematic diagram of the outer structure of the cover body embedded structure in the pot cover of Example 8;

[0171] Fig.33 This is a schematic diagram of the structure of the pot cover of Example 9;

[0172] Fig.34 and Fig.35 They are schematic diagrams of the structure of the pot cover and the cover button assembly thereof in Example 10;

[0173] Fig.36 This is a schematic diagram of the structure of a pot cover that can adapt to changes in the thickness of the cover body in Example 7;

[0174] Fig.37 for Fig.36 A schematic diagram of the structure of the middle cover button assembly;

[0175] Fig.38 is a schematic structural diagram of Example 11;

[0176] Figure 39 to Figure 41 This is a schematic diagram of the structure of the cover button and cover button shell in Example 11;

[0177] Fig.42 It is a schematic diagram of the exploded structure of the locking and unlocking structural components in the cover button in Example 11;

[0178] Fig.43 and Fig.44 They are respectively the front view and the left view structural schematic diagrams of the fixing needle in Example 11;

[0179] Fig.45 A schematic diagram of the structure of a cover button assembly of another locking and unlocking structure;

[0180] Fig.46This is a schematic diagram of the structure of another spiral structure.

[0181] The utility model is further described below through the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0182] like Figures 2 to 6 The example shown is Example 1 of a pot lid with a conveniently detachable lid button provided by the utility model, comprising a lid body 1 and a lid button 2. The lid body 1 and the lid button 2 are respectively provided with a matching lid body interlocking structure and a lid button interlocking structure to form an interlocking structure, so that the lid button 2 can be detachably interlocked and fixed on the lid body 1 through the interlocking structure.

[0183] In the description of each component of the present invention, the cover body 1 as the main body of the pot cover is taken as a reference, the outer side relative to the pot cover is called the outer side, and the inner side relative to the pot cover is called the inner side.

[0184] like Figure 2 As shown, a circular mounting hole 11 is provided on the cover body 1, a cover body interlocking assembly 3 is installed in the mounting hole 11, a cover body interlocking structure is provided on the assembly, and a cover button interlocking structure is provided on the cover button 2.

[0185] like Figures 2 to 5 As shown, the cover body embedding assembly 3 includes an embedding part 31 located on the outside of the cover body 1 and a fixing part 32 and a rubber gasket 33 located on the inside of the cover body. The embedding part 31 and the fixing part 32 are fixed to the cover body 1 through the mounting holes 11 set on the cover body 1, and the cover body embedding structure is set on the outer surface of the embedding part 31.

[0186] The fixing member 32 includes a fixing member cylinder 322, whose diameter is smaller than the mounting hole 11 on the cover body 1. One end of the inner side of the fixing member cylinder 322 is closed, and the outer edge of the closing plate thereon is larger than the diameter of the mounting hole to form an annular retaining edge to constitute a fixing member flange 321 for being clamped on the inner side of the cover body. The side wall of the fixing member cylinder 322 is provided with a plurality of slots 323 extending from the end surface of the outer end to the closing plate and parallel to the axis of the cylinder, so that the side wall of the cylinder has a retractable elasticity (see Figure 2 ). In order to ensure the seal between the fixing part 32 and the mounting hole 11 of the cover body 1 and to protect and cushion the cover body, a sealing gasket 33 is further arranged between the fixing part 32 and the cover body 1. The sealing gasket can be a flat gasket, which is placed between the flange 321 of the fixing part 32 and the inner side of the cover body 1. In the present embodiment 1, the sealing gasket 33 is a rubber gasket with a sealing gasket flange 331 and a gasket cylinder 332 at one end. During installation, the gasket cylinder 332 of the sealing gasket 33 is inserted into the mounting hole 11, and the sealing gasket flange 331 is against the edge of the mounting hole inside the cover body. The fixing part cylinder 322 of the fixing part 32 is inserted into the sealing ring 33 and extends into the mounting hole 11, while the fixing part flange 321 is attached to the flange 331 of the sealing gasket (see Figure 4 ).

[0187] The insert 31 has a cylinder 311, whose outer diameter is smaller than the inner diameter of the fixing cylinder 322, and can be inserted into the fixing cylinder, but can stretch the fixing cylinder 322. The outer side of the cylinder 311 is provided with an insert flange 312. When the fixing 32 and the insert 31 are respectively inserted into the mounting hole 11 from the inner side and the outer side of the cover 1, the insert cylinder 311 of the insert 31 is inserted into the fixing cylinder 322. During the insertion process, the fixing cylinder 322 can be stretched open for easy insertion due to the slot 323. When inserted in place, it shrinks under the elastic action of the fixing cylinder, so that the insert 31 and the fixing 32 are fixed as one body, and the cylinder 311 presses the fixing cylinder 322 against the inner wall of the mounting hole 11 or the sealing flange 331. After being inserted in place, the insert flange 312 of the insert 31 should be in contact with the outer surface of the cover 1.

[0188] Because the elastic sealing gasket 33 is placed between the fixing member cylinder 322 and the mounting hole 11, when the cylinder 311 of the insert 31 is inserted into the fixing member cylinder 322 with the slot 323 to stretch it open, the fixing member cylinder 322 squeezes the rubber gasket 33, which is conducive to the springing, and when the insert cylinder 311 is in place, the fixing member cylinder 322 restores its shape and fixes the insert cylinder 311, and the rubber gasket 33 can also play a role in strengthening the clamping. Therefore, the sealing gasket 33 can not only play a role in buffering, but also play a role in firmly fixing the insert 31 and the fixing member 32.

[0189] In order to further improve the firmness of the fixing structure of the engaging part 31 and the fixing part 32, a tooth groove 311a is provided on the outer circumference of the cylinder 311 of the engaging part, and a matching tooth groove 322a is provided on the inner circumferential wall of the fixing part cylinder 322. The shape of the tooth grooves on the cylinder 311 and the fixing part cylinder 322 is: when the two are combined, the tooth groove can slide to combine the two, and when fixed, the tooth groove is locked under the reverse force, so that the tooth groove can prevent the two from loosening.

[0190] In order to make a set of cover body fitting assembly 3 suitable for installation on pot cover bodies 1 of various thicknesses, in this embodiment 1, an annular groove 312b is provided on the end surface of the fitting flange 312 of the fitting 31 facing the fixing member cylinder body to match the end surface of the fixing member cylinder body 322. When the fitting flange 312 of the fitting 31 is attached to the outer surface of the thinner cover body 1, and the fixing member flange 321 is attached to the sealing gasket flange 332 of the sealing gasket 33, the front end of the overlong fixing member cylinder body 322 is inserted into the annular groove 312b (such as Figure 4 as shown).

[0191] As can be seen from the above, the fixing structure between the insert 31 and the fixing member 32 is composed of the slot 323 on the fixing member 32 and the tooth groove 312a on the insert cylinder 312 of the insert and the tooth groove 322a on the fixing cylinder 322, and the rubber gasket 33 also contributes to the firm connection of the fixing structure.

[0192] In the embodiment 1, the cover body 1 and the cover button 2 are detachably connected by an interlocking structure of a sliding interlocking structure formed by a cover body interlocking structure and a cover button interlocking structure.

[0193] On the outer end surface facing the cover button, i.e., away from the cover body, the two opposite edges of the insert flange 312 of the insert 31 in the cover body insert assembly 3 form a bent convex ridge that is parallel to each other and bent back to back to form the cover body insert structure, namely, the insert part 312a; the cover button insert structure is provided on the inner end surface of the cover body connected to the cover button 2, and two parallel insert grooves 21 matching the insert part 312a are provided, and the insert part 312a is inserted into the insert groove 21 to realize the detachable connection between the cover button 2 and the cover body 1. The insert groove can also be provided on the insert 31, and the insert part can be provided on the cover button 2 accordingly.

[0194] When the pot cover is used, the cover button engaging structure, i.e., the inserting groove 21, on the cover button 2 is engaged with the cover body engaging structure, i.e., the inserting portion 312a, on the cover body 1 to be fixed on the cover body 1. Specifically, the inserting portion 312a of the engaging member 31 is facing upwards and the inserting groove 21 of the cover button 2 is facing downwards. Then, the inserting portion 312a is aligned with the inserting groove 21 and inserted horizontally. The connection between the cover button 2 and the cover body 1 is completed by inserting it into the inserting groove 21. After the pot cover is used, the cover button 2 and the cover body 1 can be separated by pulling the cover button 2 horizontally in the opposite direction to disengage the inserting groove 21 and the inserting portion 312a. The pot body can be hung up for storage, and the cover body 1 with the cover body engaging assembly 3 (see Figure 6 ) can be stacked with other pot lids without lid knobs in the kitchen, or the lids can be placed on a shelf like plates, with lid knobs 2 (see Figure 6 ) can be stored separately in a drawer. One lid button 2 can be combined with the lid bodies of multiple pots. Since there is no lid button 2 on the lid body 1, it is very stable to stack several lid bodies. When the lid bodies are stored on the storage rack, since there is no lid button, the distance between the lid bodies can be very close like storing plates, and the storage space can be reduced.

[0195] like Figure 7The embodiment 2 is shown, in which the cover body and the cover button are also engaged by a sliding interlocking structure, but different from the interlocking structure of the embodiment 1, a dovetail plug-in groove 21' is provided on the end face of the cover button 2 connected to the cover body, and accordingly, the plug-in portion 312 is replaced with an insert block on the engaging member 31, on which dovetail plug-in portions 312' are formed on two opposite side edges to match the notch 21', and when engaged, the dovetail plug-in portion 312' is inserted into the dovetail plug-in groove 21'.

[0196] The interlocking structure may also be a rotational interlocking structure.

[0197] like Figures 8 to 11 The embodiment 3 of the utility model is shown. In the embodiment 3, the plug-in portion 312'' on the insert 31 is a flange plate of the insert, and its end face shape is a rectangle (see Fig.10 and Fig.11 ), correspondingly, a circular cross-section blind hole 22 is provided at the center of the inner end face of the cover button 2, and the diameter of the blind hole 22 is larger than the diameter of the circumscribed circle of the rectangular plug-in portion 312'' on the fitting 31. A sealing plate 23 is fixed on the inner end face of the cover button 2 to seal the blind hole, and a through hole 23a is provided in the center of the sealing plate 23 to communicate with the blind hole 22, and the through hole 23a is a similar shape larger than the rectangular plug-in portion 312''. The long side of the through hole 23a is larger than the long side of the flange plate, and the short side of the through hole 23a is smaller than the long side of the flange plate but larger than the short side of the flange plate.

[0198] During use, when the cover button 2 is combined with the fitting member 31 on the cover body 1, the through hole 23a on the cover button 2 is aligned with the plug-in portion 312'' on the fitting member 31 and then the cover button 2 is rotated 90 degrees to complete the combination. Removing the cover button 2 is also very simple. Just rotate it 90 degrees again to align the plug-in portion 312'' with the through hole 23a, and then the cover button 2 can be removed from the fitting member 31 to separate the cover button from the cover body.

[0199] like Fig.12 and Fig.13 Embodiment 4 is shown, which is another structure of the rotational insertion structure of the cover button and the inserting member on the cover body, wherein the plug-in portion 312''' on the inserting member 31 is a triangular inserting plate 312''', a circular blind hole 22' is provided on the cover button 2, the diameter of the blind hole 22' is larger than the diameter of the circumscribed circle of the triangular inserting plate on the inserting member 31, a sealing plate 23' is fixed on the blind hole 22', a through hole 23a' is provided on the sealing plate 23', and the through hole 23a' is larger than the triangular inserting plate 312''' in similar shape.

[0200] During use, the inserting plate 312''' of the inserting member 31 is aligned with the insertion hole 23a' on the sealing plate 23', and then inserted into the insertion hole 22', and then rotated by an angle so that the triangular inserting plate 312''' and the triangular insertion hole 23a' are interlaced, and the inserting plate 312''' is then stuck by the sealing plate 23', and the cover button 2 can be connected to the cover body 1. The order of removing the cover button 2 is the opposite of that of installing it.

[0201] like Fig.14 and Fig.15 The embodiment 5 is shown. In this embodiment 5, the mounting hole 11 on the cover body 1 is a smaller hole. The cover body 1 can be the cover body in the prior art. In the cover body fitting assembly, on the cover body, the fixing structure between the fitting 31X and the fixing member 32X is: the cover body fitting 31X includes a cylinder with a flange, and a through hole 31Z is arranged on the flange to communicate with the cylinder. The fitting 31X abuts against the mounting hole 11 on the outer side surface of the cover body 1, and also includes a hollow internal threaded rod 31Y, which is inserted into the through hole 31Z and the cylinder. The fixing member 32X is a screw, which is inserted into the hollow internal threaded rod 31Y from the inner side surface of the cover body 1 and is screwed and fixed thereto. A cover body fitting structure is arranged on the outer end surface of the flange of the fitting 31X, which is basically the same as the cover body fitting structure in embodiment 1 or embodiment 2.

[0202] This embodiment 5 can also have a modified example (not shown in the figure), that is, the fixing member is still a screw, the engaging member is a cylinder with a flange, a through hole is arranged on the flange to communicate with the cylinder, an internal thread is arranged on the inner wall of the through hole, and an engaging structure is arranged on the outer end face of the flange of the engaging member, and the engaging member is against the mounting hole 11 on the outer side surface of the cover body 1, and the fixing member, i.e., the screw, is screwed into the internal thread of the engaging member from the inner side surface of the cover body so that the engaging member is fixed on the cover body 1.

[0203] Figures 16 to 20 The sixth embodiment is shown. In the sixth embodiment, the difference from the previous embodiments is that the detachable combination structure of the cover button and the cover body interlocking component is a spiral structure. That is, the cover body spiral structure is arranged on a cover body spiral component. The cover body interlocking spiral component includes a spiral component located on the outside of the cover body and a fixing component located on the inside of the cover body. Both are fixed to the cover body through mounting holes arranged on the cover body 1. The cover body spiral structure is arranged on the outer side of the spiral component, and the cover button spiral structure is arranged on the inner end face of the cover button, that is, on the cover button connecting end. In order to adapt to the spiral structure, as Fig. 20As shown, the mounting hole 11' on the corresponding cover body 1 is a rectangular hole, and the connection structure of the spiral member 31' and the fixing member 32' is basically the same as that of Example 1, except that the cross-sectional shapes of the fixing member cylinder 322' of the fixing member 32', the washer cylinder 332' in the rubber gasket 33' and the cylinder 311' of the spiral member 31' connected with the fixing member 32' are rectangular, and the grooves 323' on the fixing member cylinder 322' are arranged at the four corners of the rectangular cylinder, and the tooth grooves 311a' and 322a' arranged on the fixing member cylinder 322' and the cylinder 311' on the spiral member can be arranged only on two opposite side surfaces, but it is preferably to arrange tooth grooves on all four side surfaces from top to bottom.

[0204] The spiral structure between the cover button 2 and the spiral member 31' can be a common threaded connection, but preferably a spiral connection structure with a locking and anti-retraction structure as shown in Embodiment 5.

[0205] In this embodiment 6, the spiral connection structure with the locking and anti-retraction structure is: Fig.16 and Fig.17 As shown, on the cover button 2', a stud 24' is protruded on the inner end surface of the cover button 2, which is a cylinder with at least two radial transverse columns 241' evenly distributed on its side circumference. Correspondingly, the screw hole structure of the spiral member 31' is as follows: a vertical circular groove 312a' is arranged on the outer surface of the flange plate 312' of the spiral member 31' on the cover body spiral assembly, and a depression 312b' is arranged at the center of the groove bottom surface of the circular groove 312a' corresponding to the cylinder of the stud 24'. On the side wall of the circular groove 312a', vertical grooves 312c' corresponding to the number and position of the transverse columns 241' on the stud 24' are arranged in the circumferential direction, and a downwardly curved spiral groove 312d' is extended from the vertical groove 312c' along the circumferential direction. At the lowest point of the spiral groove 312d', an upper convex section 312e' is smoothly transitioned to match the radial transverse column 241'.

[0206] When in use, the stud 24' of the cover button 2' is aligned with the recess 312b' and inserted into the circular groove 312a', the cross column 241' falls into the vertical groove 312c', the cover button 2' is rotated, the cross column 241' enters the spiral groove 312d', and when the cross column 24' enters the upper convex section 312e', it is screwed into place, and the cross column is limited by the upper convex section 312e' and is not easy to rotate. When using the pot cover, the cover button is not easy to loosen and disengage from the spiral member. When the cover button is to be separated from the cover body, the cover button 2 is rotated in the opposite direction, because the upper convex section 312e' and the spiral groove are a smooth transition, the cross column 241 easily leaves the upper convex section 312e' and enters the spiral groove 312d', and the cover button can be separated from the spiral member.

[0207] like Fig.18 and Fig.19 as well as Fig. 20As shown, a better spiral structure is provided on the spiral member 31', a stud 31-1 is provided on the stud 31-1, a circular groove 2-1 is provided on the inner end face of the cover button 2'' to match the stud 31-1, a depression 2-2 is provided at the center of the groove bottom face of the circular groove 2-1 to correspond to the cylinder on the upper part of the transverse column 31-2 of the stud 31-1, two vertical grooves 2-3 matching with the two radial transverse columns are provided on the inner end face of the cover button to communicate with the circular groove, a spiral groove 2-4 extending along the circumferential direction and bending upward is provided on the side wall of the circular groove to communicate with the vertical groove 2-2, and a section of the spiral groove 2-4 has an upward bending groove 2-5 at the end to fix and prevent retreat.

[0208] During use, align the two vertical grooves 2-3 on the cover button with the two horizontal columns 31-2 on the spiral member 31'. Fig.18 Insert the cover button 2 along the double dotted line a in the enlarged view, and then rotate the cover button. The cross bar 31-2 moves in the spiral groove 2-4 so that the cover button 2 moves toward the cover body 1 until the cross bar 31-2 is embedded in the curved groove 2-5, that is, the cover button is installed on the cover body. When removing the cover button 2, rotate the cover button 2 in the reverse direction. Due to the smooth transition between the curved groove 2-5 and the spiral groove 2-4, a little force can be applied to make the cross bar 31-2 retreat from the curved groove into the spiral groove. Therefore, the cover button can be separated from the cover body by rotating the cover button in the reverse direction.

[0209] Fig.16 and Fig.17 and Figures 18 to 20 The difference between the two examples is that the stud and the spiral groove are provided on the cover button and the cover body respectively. The functions are the same in use, but the spiral groove is provided on the cover button, which is simple in structure for the cover body. The cover body with a simple structure is more convenient to store, and the cover button with the spiral groove is small in size and can be stored in a closed storage box, and the spiral groove structure is less likely to be damaged. Figures 18 to 20 The embodiment has another advantage. The stud and cross column structure are arranged on the spiral member 31' fixed on the cover body. If the cover body is used for a long time, the oil stains on the stud are easy to clean. However, if a screw hole structure is arranged on the cover body, if the oil stains are in the screw holes on the cover body, it will be very inconvenient to clean because the cover body is large. However, if the screw hole structure is arranged on the cover button, it is more convenient to clean the oil stains or even oil mud in the screw hole structure thereon because the cover button is small.

[0210] In the sixth embodiment, the screw member 31' and the fixing member 32' are fixedly connected in the following manner: Fig. 20 In addition to the elastic plug-in and tooth-groove structure shown in the figure, the following can also be used: Fig.15 The structure shown is a connection between a bolt and a hollow internally threaded rod, or a screw connection structure in which a bolt is directly connected to a screw member with an internally threaded hole.

[0211] like Figures 21 to 28Another embodiment of a pot cover of the present invention is provided, namely, embodiment 7.

[0212] In Example 7, the pot cover only has a cover body 1 and a cover button 2, and the cover body interlocking structure is formed by the mounting hole on the cover body 1, which is the cover button mounting hole 101, and the cover button mounting hole 101 is a non-circular hole;

[0213] The cover button engaging structure on the cover button 2 is a protruding plug-in plate 201 (see Fig.24 ), the plug board 201 is a non-circular cylindrical body with a cross-section shape, forming an inserting section, the maximum length of the cross-section of the inserting section is less than the maximum length of the cover button mounting hole 101 but greater than the minimum length of the cover button mounting hole 101, so that the plug board 201 can pass through the cover button mounting hole 101, and after the plug board is driven by the cover button 2 to rotate through a set angle, it is axially stuck on the cover body 1 and cannot be pulled out, so that the cover button 2 is fixed on the cover body 1 (such as Figure 26 to Figure 28 as shown).

[0214] like Fig.21 A specific shape of a cover button mounting hole 101 is given. The non-circular cover button mounting hole 101 is: a non-circular hole in the shape of a dumbbell, in the middle of which is a small circular hole with a smaller diameter d as a positioning hole, and two fan-shaped holes with a larger diameter D and the same center are connected on both sides of the small circular hole symmetrically to form a non-circular hole in the shape of a dumbbell. Such a dumbbell-shaped cover button mounting hole has a better positioning effect than a non-circular hole such as a rectangular hole.

[0215] like Figure 23 to Figure 25 As shown, correspondingly, in the cover button interlocking structure, the non-circular inserting section on a plug-in board 201 axially protruding outwardly from the inner end of the cover button 2 is a dumbbell-shaped non-cylindrical body having a similar shape to the cover button mounting hole.

[0216] In the cover button interlocking structure, a connecting section 202 is axially extended from the outer end of the protruding plug-in board 201. The outer contour of the connecting section 202 is smaller than the cover button mounting hole 101 on the cover body 1, and its axial length d1 is equivalent to the axial length D1 of the cover button mounting hole 101 on the cover body 1. A convex shoulder 203 is connected to the outer end of the connecting section 202. The outer contour of the convex shoulder 203 is larger than the cover button mounting hole 101 of the cover body 1, so that when the plug-in board 201 of the cover button 2 is inserted into the cover button mounting hole 101 on the cover body 1, the convex shoulder 203 abuts against the outer surface of the cover body 1. Fig.28 The outside of the shoulder is a knob 204.

[0217] Embodiment 7 provides a simpler structure than the previous embodiments, wherein the plug-in board 201 of the cover button 2 is directly fixed on the mounting hole on the cover body 1, i.e., the cover button mounting hole 101. The plug-in board on the cover button 2 can be made of plastic material, or can be made of metal material with a silicone layer attached to the outside. In order to make the position of the cover button stuck on the cover body more stable after rotation, a matching protrusion 205 and a pit or through hole 102 can be respectively provided on the opposite sides of the plug-in board 201 of the cover button and the periphery of the cover body 1. When the cover button is rotated into place, the protrusion 204 is sunk into the pit or through hole for positioning; when the cover button is to be removed from the cover body, the protrusion can be easily removed from the pit or through hole by the elasticity of the cover button material itself.

[0218] In order to make the cover button 2 adapt to various thicknesses D1 of the cover body 1, Fig.24 The cover button is improved by cutting it into two parts from the shoulder 203 and the connecting section 202 (see Fig.36 and Fig.37 ), which includes a pin shaft D201, a connecting cover D202, a cover button D203, a spring D204 and a screw D205. The end of the pin shaft D201 is a shaft cap D201a which acts as a plug-in board. The shaft cap D201a is provided with a connecting portion D201b, a boss D201c and a rectangular section D201d in order outward. An axial screw hole D201e is provided on the outer end surface of the pin shaft. The inner side of the connecting cover D202 is a conical cover D202a, and the outer end surface is a partition D202b. The partition D202b is provided with a through hole D202d. A cylindrical body D202c is extended on the outer side of the partition. The cover button D203 is a cone. The inner end A pit D203a is provided on the surface, the axial depth of the pit is greater than the length of the cylinder on the connecting cover, a rectangular blind hole D203b is provided on the bottom of the pit, a screw hole D203c is provided on the bottom of the blind hole, the pin shaft, the connecting cover and the cover button are connected by screws D205, the boss D201c of the pin shaft D201 abuts on the partition D202b of the connecting cover D202, the rectangular section D201d is matchedly inserted into the blind hole D203b of the cover button D203, the cylinder on the connecting cover D202 is inserted in the pit of the cover button, one end of the spring D204 abuts on the partition D202b of the connecting cover, and the other end abuts on the bottom of the pit of the cover button D203. When in use, the integrated cover button is passed from the outside of the cover body D1 through the cover button installation hole D11 that matches the shaft cap D201a on the pin shaft, and the inner end surface of the conical cover D202 of the connecting cover D202D is against the outer surface of the cover body. At this time, the cover button is rotated to make the shaft cap stuck on the inner side of the cover body, that is, the cover button is installed. Such a cover button can be used as a spring because the connection cover and the cover button are telescopically connected. Fig.37The axial movement indicated by the arrow changes the spacing between the shaft cap D201a of the pin D201 and the connecting cover D202a. Therefore, the thickness variation of the cover body placed in the spacing can also make the connecting cover fit well against the outer side of the cover body, so that such a cover button can adapt to various cover body thicknesses D1 within a certain range.

[0219] Nowadays, many pot lids are made of transparent glass. It is not convenient to process a dumbbell-shaped non-circular hole on the glass lid. The following embodiment 8 makes improvements for this purpose:

[0220] like Figure 29 to Figure 32 As shown, the cover body fitting structure includes a cover body 1A, an outer fixing member 2B and an inner fixing member 3C.

[0221] The cover body 1A is provided with a connecting through hole 101A which is a rectangular hole. The cover body has an outer surface 102A and an inner surface 103A.

[0222] The outer fixing part 2B is an end cover arranged on the outer side of the cover body 1, and a dumbbell-shaped non-circular cover button mounting hole 201B is arranged on the outer fixing part 2B, and an external tube 202B is arranged on the inner side of the outer fixing part 2B, which is matched and plugged with the connecting through hole 101A on the cover body 1A, and the inner end 203B of the external tube 202B is flush with the inner surface 103A of the cover body 1A. At the same time, the end edge 204B of the end cover 2B located on the outer side of the external tube 202B is in contact with the outer surface 102A of the cover body 1A.

[0223] The inner fixing member 3C is a cover provided inside the cover body 1A. An inner tube 301C is provided on the outer end surface of the inner fixing member 3C to match the outer tube 202B on the outer fixing member 2B, so that the outer tube 202B is inserted into the inner tube 301C. At the same time, the peripheral edge 302C of the cover on the inner fixing member 3C is in contact with the inner surface of the cover body 1A. A plurality of slots a extending axially from the inner tube end surface by a portion of the tube length are provided on the side wall of the inner tube 301C, so that the inner tube 301C has radial elasticity. When the outer tube 202B is inserted into the inner tube 301C, the inner tube can be expanded and fixed between the connection through hole 101A of the cover body 1 and the outer tube 202B. Matching tooth grooves b are provided on the inner side wall of the inner tube 301C and the outer side wall of the outer tube 202B, so that the outer fixing member 2B and the inner fixing member 3C are fixedly connected in the connection through hole 101A of the cover body 1A more firmly. The cover body interlocking structure composed of the cover body 1A, the outer fixing member 2B and the inner fixing member 3C is as follows: Fig.31 and Fig.32 shown.

[0224] With the above structure, the connecting through hole 101A on the cover body 1A can be a round hole, but preferably a rectangular hole, and does not need to be processed into a dumbbell-shaped cover button installation hole that matches the shape of the plug-in board on the cover button 2.

[0225] In order to allow the end edges of the inner fixing member 3C and the outer fixing member 2B to fit well with the cover body 1, the bottom surface of the inner tube 301C is indented inwardly by a distance relative to the outer surface of the cover body 1A, and / or the bottom surface of the outer tube 202B is indented inwardly by a distance c relative to the inner side surface of the cover body 1A (see Fig.30 ).

[0226] In the cover button fitting structure provided in the present embodiment 8, the plug-in board 201 on the cover button 2 is inserted into the cover button mounting hole 201B on the end cover of the outer fixing member 2B, accommodated in the inner pipe 301C, and placed in the connecting through hole 101A of the cover body 1A. The cover button 2 drives the plug-in board 201 to rotate at a set angle and then can be fixed on the cover body 1A (such as Fig.30 as shown).

[0227] In this embodiment 8, the connecting through hole 101A on the cover body 1A can be a circular hole, but it is better to be a non-circular hole, for example, it can be a rectangular hole as in this embodiment, or a polygonal hole, and the cross-sectional shape of the connecting through hole 101 matches the outer tube 202B and the inner tube 301C. Such a connecting through hole is easier to process than the dumbbell-shaped cover button installation hole, and the dumbbell-shaped cover button installation hole 103B with a better cover button positioning effect is transferred to the end cover 2B of the outer fixing member.

[0228] In order to make the cover button more firmly stuck on the cover body after rotation, Fig.29 As shown, a matching protrusion 205 and a recess or through hole 205B can be respectively provided on the opposite sides of the periphery of the plug-in board 201 of the cover button and the outer fixing member 2B on the cover body 1A. When the cover button is rotated into place, the protrusion 205 is sunk into the recess or through hole for positioning; when the cover button is to be removed from the cover body, the protrusion can be easily removed from the recess or through hole by the elasticity of the material of the cover button itself.

[0229] like Fig.33As shown, the utility model also provides a 9th embodiment of a pot cover, embodiment 9 includes a cover body A1, an inner cover button fixing part A2 and a cover button A3, a mounting hole A11 is arranged on the cover body A1, the inner cover button fixing part A2 includes a closing cover A21, an inner pipe A22 is arranged on an outer side surface of the closing cover A21 facing the cover body, an outer pipe A31 is arranged on the inner side surface of the cover button A3 facing the cover body, and a handle A32 is arranged on the other side surface of the cover button, the inner pipe A22 is inserted into the mounting hole A11 of the cover body, the outer peripheral edge A222 of the inner pipe A22 on the outer side surface of the closing cover A21 is fitted with the inner side surface of the cover body A1, the outer pipe A31 on the cover button A3 is inserted into the inner pipe A22, the outer peripheral edge A311 of the outer pipe A31 on the inner side surface of the cover button A3 is fitted with the outer side surface of the cover body, thereby the inner cover button fixing part A2 fixes the cover button A3 on the cover body A1.

[0230] A plurality of grooves (not shown in the figure, and basically the same as the structure of the groove a in the previous embodiment 8) are axially arranged on the tube wall of the inner connecting tube on the inner cover button fixing part A2 from its outer end inward, so that the tube wall of the inner connecting tube is elastic in the radial direction. When the outer connecting tube of the cover button is inserted into the inner connecting tube, the inner connecting tube is propped up, so that the cover button is fixed more firmly.

[0231] Furthermore, matching circumferential tooth grooves A0 may be provided on the inner wall of the inner connecting pipe A22 and the outer wall of the outer connecting pipe A31 so that the two are fixed more firmly.

[0232] The mounting hole A11 on the cover body is non-circular, such as a rectangular hole or a polygonal hole, and the shapes of the inner pipe A22 on the inner cover button fixing member and the outer pipe A31 on the cover button that match the mounting hole A11 on the cover body match the shape.

[0233] The pot cover provided in Example 9 does not need screws to fix the cover button to the cover body, but fixes the cover button to the cover body through the cover body interlocking structure formed by the inner cover button fixing member and the cover button interlocking structure provided on the cover button, which has a simpler structure. The cover button fixing member A2 and the cover button A3 can be made of elastic material.

[0234] like Fig.34The utility model shows an embodiment 10 of a pot cover provided by the present invention, which includes a cover body B1 and a cover button assembly including a screw B2, a connector B3 and a cover button B4. A non-circular through hole B11 is arranged in the middle of the cover body B1, which is specifically an elliptical hole in this embodiment 10. The nut B2a of the screw B2 and the insertion portion B31 of the connector B3 inserted in the through hole B11 of the cover body B1 are both elliptical in cross-section, matching with the through hole B11 on the cover body 1 so as to be able to pass through the through hole B11. A supporting portion B32 with a circular cross-section whose diameter is larger than the major axis of the through hole B11 on the cover body is extended behind the insertion portion B31, which is used to make the connector B3 abut against the cover body B1. A screw hole B33 is arranged in the center of the connector B3. The end face of the cover button B4 adjacent to the connector B3 matches the adjacent end face of the connector B3. A screw hole B41 is also arranged in the center of the cover button B4. The screw B2 connects the connector B3 and the cover button B4 into one. When in use, the screw B2 is passed through the screw hole B31 of the connecting piece B3 and screwed to the cover button through the screw hole B41. At this time, the long axes of the two elliptical end faces of the nut B2a and the connecting piece B3 are aligned (see Fig.35 ), insert the nut B2a through the through hole B11 from the outside of the cover body B1, the insertion part B31 in the connector B3 is located in the through hole B11 of the cover body B1, and the abutment part B32 behind the connector B3 abuts against the outer surface of the cover body B1, then, rotate the nut B2a 90° to be perpendicular to the insertion part B3a of the connector B3, and the cover button assembly can be fixed on the cover body B1. When removing the cover button, you only need to rotate the nut B2a 90° in the opposite direction to align it with the insertion part B31 of the connector B3, and then you can pull it out from the through hole B11. In order to make the nut stable when rotating the cover button B4, a clamping structure is set on the adjacent end faces of the nut B2a and the connector B3, for example, a non-circular, for example, a rectangular boss B2b is set on the nut, and a matching rectangular pit or groove B3a is set on the insertion part B31 of the connector B3. When removing the cover button assembly, first rotate the cover button B4. The depth of the boss and the groove can be very shallow. You only need to rotate the cover button one circle or less to allow the boss B2b of the nut B2a to withdraw from the pit. Then align the nut B2a with the insert part B31 in the connecting piece B3, and then remove the cover button assembly from the through hole B11.

[0235] In the above-mentioned embodiment 10, there is another variation, that is, the outer contour of the nut B2a of the screw B2 is larger than the insertion portion B31. In this case, during installation, the screw B2 passes through the elliptical through hole B11 from the inner side of the cover body B1 and is screwed and fixed with the connecting piece B3 and the cover button B4.

[0236] In yet another variant structure (see Fig.46 ), the spiral structure is:

[0237] It includes a screw B2 and a cover button B4, and the connecting piece B3 is cancelled. The outer contour of the nut B2a of the screw B2 is larger than the mounting hole B11 of the cover body. A non-circular boss B2b is provided on one side of the screw rod of the nut, which is a rectangular boss. The mounting hole B11 on the cover body matches the boss B2b. The inner end face of the cover button B4 fits the outer side face of the cover body B1, and a screw hole B41 is provided thereon. During installation, the screw B2 passes through the mounting hole from the inner side of the cover body and is screwed to the cover button B4, and the boss B2b is placed in the mounting hole. When removing the cover button, you only need to screw the cover button B4 with one hand, instead of using a screwdriver to hold the screw to unscrew the cover button like the existing pot cover. The boss placed in the mounting hole of the cover body can also be convexly arranged on the inner end face of the cover button B4.

[0238] like Fig.38 The eleventh embodiment of the present utility model is given as a cover button assembly, which includes a cover button member C1 and a locking pin C2.

[0239] Cover button C1 Figure 39 to Figure 41 As shown, it includes a cover button shell C11, which is a cylindrical body, the outer end face of which is closed by a rear end cover C111, and the inner end face is provided with a front end cover C112. A through needle hole C112a is provided in the center of the front end cover C112 for inserting the lock needle C2. A non-circular boss is convexly provided on the outward end face of the front end cover C112. In this embodiment 11, the elliptical boss C112b matches the non-circular cover button mounting hole on the cover body. A groove C112c extending in the short axis direction is provided on the end face of the boss C112b, and a handle card slot C112d is provided on the other end face of the front end cover C112 (see Fig.40 ), a handle through hole C113a is provided on the side wall C113 close to the rear end cover C111.

[0240] The locking and unlocking structure of the lock pin is arranged in the cover button shell C11; the locking and unlocking structure comprises a conical sleeve cap C12, a compression spring C13, an inner conical cylinder C14, a locking steel ball C15, an outer conical cylinder C16 and an unlocking lifting handle C17 (see Fig.42 ).

[0241] The conical sleeve cap C12 is a conical cylinder, the small end of which is fixed on the inner side of the rear end cover C111 of the cover button shell C11, the large end of the inner conical cylinder C14 is inserted into the large end of the conical sleeve cap C12 and pressed against the conical inner wall of the conical sleeve cap, the compression spring C13 is placed between the conical sleeve cap C12 and the inner conical cylinder C14, and the three locking steel balls C15 are radially movable and embedded in the through holes C14a on the conical side wall of the inner conical cylinder C14. A boss C141 is provided at the center of the end cover at the front end, and a pinhole C141a is provided on the boss. The large end of the outer conical cylinder C16 is inserted into the cover button shell C11 and fixed with the large end of the conical sleeve cap C12. A cover plate C161 is provided on the small end in front thereof, and a through hole 161a is provided on the cover plate for the boss C141 on the inner conical cylinder C14 to pass through. The conical side wall of the outer conical cylinder C16 locks the part of the locking steel ball C15 exposed outside the inner conical cylinder C14. The unlocking and lifting handle C17 is a rod body, and a cross bar C17a at one end thereof is embedded in the handle slot C112d on the front end cover C112 to limit the position. A cross bar pinhole C17a1 is provided on the cross bar C17a. The cross bar C17a is fixedly connected to the boss C141 of the inner conical cylinder C14, or it can be pressed between the front end cover C112 of the cover button shell and the boss (C141) on the inner conical cylinder C14 by a compression spring C13. a is connected to one end of a connecting rod C17b, the connecting rod C17a is placed in the cover button shell C11 and outside the outer conical tube C16 and the sleeve cap C12, the other end of the connecting rod is connected to a bent section as a handle C17c which passes through the handle through hole C113a on the side wall of the cover button shell C11, and pulling the handle C17c can drive the inner conical tube C14 to move axially, and the spring C13 is placed on the inner side surface of the rear end cover C111 of the cover button shell C11.

[0242] The fixed needle C2 includes a needle cap C21 and a needle rod C22 (see Fig.43 and Fig.44 ), a rectangular protrusion C21a is convexly provided on the side of the needle rod of the needle cap, which matches the groove C112c on the end face of the boss C112b on the cover button shell 1C112.

[0243] The fixing needle C2 passes through the front end cover C112 of the cover button shell C11 and the boss on the inner conical cylinder C14 through the needle hole, and is inserted between the three locking steel balls C15. Under the elastic force of the compression spring C13, the steel balls are pressed by the conical side walls of the outer conical cylinder to clamp the fixing needle, thereby fixing the fixing needle C2 and the cover button C1 as one. The cross-section of the needle cap of the fixing needle C2 is larger than the mounting hole on the cover body, and the shape of the elliptical boss C112b matches the mounting hole on the cover body.

[0244] When in use, the cover button C1 in the cover button assembly is inserted from the outside into the mounting hole on the cover body, and the elliptical boss C112b is placed in the through hole of the cover body. Then, the fixing pin C2 is inserted from the inside of the cover body into the cover button C1 and placed between the three locking steel balls C15. Under the action of the compression spring and the outer conical cylinder C16, it is axially locked, that is, the cover button assembly is fixed to the cover body. When the cover button assembly is to be removed, it is only necessary to pull the handle C17c to drive the inner conical cylinder C14 to move toward the spring side against the spring force. Since the conical side wall of the outer conical cylinder gradually expands toward the compression spring direction, the three locking steel balls can be radially moved outward, the fixing pin can be pulled out, and the cover button assembly can be removed.

[0245] Fig.45 Another structure of an unlocking steel ball is provided, in which the unlocking lifting handle C18 is a rod body, one end of a cross bar C18a at one end of which is embedded in a handle slot C112d on the front cover C112 and is limited and fixed to the outer conical cylinder C16 or pressed against the front cover of the cover button shell C11 by a spring C13. A cross bar pinhole C18a1 is provided on the cross bar C18a, and the other end of the cross bar C18a is hinged to a connecting rod C18b through a hinge C18a3. The other end of the connecting rod extends to the rear end cover of the cover button shell and is exposed, and is connected to a button C18c. A rotating fulcrum C18a2 is provided in the middle of the cross bar C18a and is fixed to the cover button shell C11. When the locking steel ball is to be unlocked, it is only necessary to press the button C18c, and the cross bar drives the inner conical cylinder C14 to move through the connecting rod.

[0246] The embodiments in the present utility model are only to be regarded as illustrative examples, and the true scope and spirit of the present application are indicated by the claims. It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A pot cover with a cover button that can be easily disassembled, comprising a cover body and a cover button, characterized in that: The cover body and the cover button are respectively provided with matching cover body interlocking structures or cover body spiral structures and cover button interlocking structures or cover button spiral structures to form interlocking structures or spiral structures, and the cover button is detachably interlocked or screwed to the cover body through the interlocking structures or spiral structures.

2. The pot cover with easily detachable cover button according to claim 1, characterized in that: The chimeric structure is: The cover body embedding structure is arranged on a cover body embedding assembly, which includes an embedding piece located on the outside of the cover body and a fixing piece located on the inside of the cover body, both of which are fixed on the cover body through mounting holes arranged on the cover body, and the cover body embedding structure is arranged on the outer side of the embedding piece; The cover button interlocking structure is arranged on the inner end surface of the cover button, that is, on the cover button connecting end; or, The chimeric structure is that The cover body interlocking structure is a cover button mounting hole on the cover body, and the cover button mounting hole is a non-circular hole; or, The cover body interlocking structure comprises a cover body, an outer fixing piece and an inner fixing piece. The cover body is provided with a connecting through hole; The outer fixing member is an end cover arranged on the outer side of the cover body, the non-circular cover button mounting hole is arranged on the outer fixing member, an external tube is arranged on the inner side of the outer fixing member, and is matched and plugged with the connecting through hole on the cover body, and the end edge of the outer fixing member located on the outer side of the external tube is in contact with the outer surface of the cover body; The inner fixing member is a sealing cover arranged inside the cover body, an inner tube is arranged on the outer end surface of the inner fixing member to match the outer tube on the outer fixing member, the outer tube is inserted into the inner tube, or the inner tube is inserted into the outer tube, and the outer end edge of the inner tube of the inner fixing member is in contact with the inner surface of the cover body; Fixing the outer fixing member with the cover button mounting hole to the cover body through the inner fixing member; The cover button interlocking structure is a plug-in board protruding on the side surface of the cover button facing the inner side of the cover body, the plug-in board is a non-circular column in cross section, forming an inserting section, the maximum length of the cross section of the inserting section is less than the maximum length of the cover button mounting hole but greater than the minimum length of the cover button mounting hole, so that the plug-in board can pass through the cover button mounting hole, and after the plug-in board rotates through a set angle, it is stuck on the cover body and cannot be pulled out, so that the cover button is fixed on the cover body; or, The cover button interlocking structure comprises: a cover button component, The cover button assembly comprises a screw (B2), a connecting piece (B3) and a cover button (B4), and is matched with a non-circular mounting hole (B11) provided in the middle of the cover body (B1). An inserting portion (B31) of the connecting piece (B3) inserted into the mounting hole (B11) of the cover body (B1) is a non-circular cross section, and an abutting portion (B32) with a circular cross section having a diameter greater than the long axis of the mounting hole (B11) on the cover body is extended behind the inserting portion (B31), so as to make the connecting piece (B3 ) is against the cover body (B1), a screw hole (B33) is provided at the center of the connecting piece (B3), an end face of the cover button (B4) adjacent to the connecting piece (B3) matches with an adjacent end face of the connecting piece (B3), a screw hole (B41) is also provided at the center of the cover button (B4), a screw (B2) connects the connecting piece (B3) and the cover button (B4) into one body, and an outer profile of a nut (B2a) of the screw (B2) is the same as that of the inserting portion (B31); or, The cover button interlocking structure comprises a pin shaft (D201), a connecting cover (D202), a cover button member (D203), a spring (D204) and a screw A (D205). The end of the pin shaft (D201) is a shaft cap (D201a) which acts as a plug-in board. The shaft cap (D201a) is connected to the outside as a connecting portion (D201b), a convex shoulder (D201c) and a rectangular section (D201d). An axial screw hole (D201e) is arranged on the outer end surface of the pin shaft. The inner side of the connecting cover (D202) is a conical cover (D202a). The outer end surface is a partition (D202b). A through hole A (D202d) is arranged on the partition (D202b). A cylindrical body (D202c) is extended on the outer side of the partition. The cover button member (D203) is a round A cone, a concave pit (D203a) is provided on the inner end surface, the axial depth of the concave pit is greater than the length of the cylindrical body on the connecting cover, a rectangular blind hole (D203b) is provided on the bottom surface of the concave pit, a screw hole (D203c) is provided on the bottom surface of the blind hole, the pin shaft, the connecting cover and the cover button member are connected by a screw A (D205), the boss (D201c) of the pin shaft (D201) abuts against the partition (D202b) of the connecting cover (D202), the rectangular section (D201d) is matched and inserted into the blind hole (D203b) of the cover button member (D203), the cylindrical body on the connecting cover (D202) is inserted into the concave pit of the cover button member, one end of the spring (D204) abuts against the partition (D202b) of the connecting cover, and the other end abuts against the bottom surface of the concave pit of the cover button member (D203); or, The cover button interlocking structure is a cover button assembly, including a cover button part A (C1) and a locking pin (C2). The cover button part includes a cover button shell (C11), which is a cylinder, the outer end face of which is closed by a rear end cover (C111), and the inner end face is provided with a front end cover (C112). A through needle hole is provided in the center of the front end cover for the locking pin to be inserted. A non-circular boss is provided on the end face of the front end cover facing the outside of the cylinder to match the non-circular cover button mounting hole on the cover body, and a handle slot (C112d) is provided on the end face of the front end cover facing the inside of the cylinder. ), a handle through-hole is arranged on the side wall near the rear end cover or on the rear end cover; a locking and unlocking structure of a lock needle is arranged in the cover button shell, wherein one end of the unlocking handle is clamped in the handle clamping groove, and the other end is exposed from the handle through-hole; the lock needle has a lock needle cap and a needle rod, the lock needle cap has the same shape and size as the boss, and is staggered with the boss at a set angle against the inner side of the cover body, or the lock needle cap is larger than the cover button mounting hole on the cover body, and the needle rod is inserted into the pinhole in the cover button shell and is locked by the locking and unlocking structure; or, The spiral structure is: The cover body spiral structure is arranged on a cover body spiral assembly, the cover body spiral assembly comprises a spiral member located on the outside of the cover body and a fixing member located on the inside of the cover body, both of which are fixed on the cover body through a mounting hole arranged on the cover body, and the cover body spiral structure is arranged on the outer side of the spiral member; The cover button spiral structure is arranged on the inner end surface of the cover button, that is, on the cover button connecting end; or, The spiral structure comprises a cover body (B1) and a cover button assembly comprising a screw (B2), a connecting piece (B3) and a cover button (B4); a non-circular mounting hole (B11) is arranged in the middle of the cover body (B1); an inserting portion (B31) of the connecting piece (B3) inserted into the mounting hole (B11) of the cover body (B1) has a non-circular cross section that matches the through hole on the cover body; a circular cross-section abutment member having a diameter greater than the long axis of the mounting hole (B11) on the cover body is extended behind the inserting portion (B31); A portion (B32) is used to make the connecting member (B3) abut against the cover body (B1), a screw hole (B33) is provided at the center of the connecting member (B3), an end face of the cover button (B4) adjacent to the connecting member (B3) matches the adjacent end face of the connecting member (B3), a screw hole (B41) is also provided at the center of the cover button (B4), the screw (B2) connects the connecting member (B3) and the cover button (B4) into one body, and the outer contour of the nut (B2a) is larger than the outer contour of the inserting portion (B31); or, The spiral structure comprises a screw (B2) and a cover button (B4); the outer contour of the nut (B2a) of the screw (B2) is larger than the mounting hole (B11) of the cover body; a non-circular boss (B2b) is provided on one side of the screw rod of the nut or the inner side of the cover button, matching the mounting hole (B11) on the cover body; the outer end face of the nut and the inner end face of the cover button (B4) fit the inner and outer side faces of the cover body (B1); and a screw hole (B41) is provided on the cover button.

3. The pot cover with easily detachable cover button according to claim 2, characterized in that: The interlocking structure is a sliding interlocking structure or a rotating interlocking structure; or, The spiral structure comprises a stud and a screw hole, wherein the stud is convexly arranged on the outer side surface of a screw member on a cover body spiral assembly in the cover body spiral structure, or convexly arranged on the inner side end surface of the cover button; the screw hole is concavely arranged on the inner side end surface of the cover button, or concavely arranged on the outer side surface of the screw member, and the cover button is detachably connected to the fitting member or the screw member through the threaded structure matching the stud and the screw hole; and / or, Matching the spiral structure, the mounting hole on the cover body is non-circular; and / or, A fixing structure is provided between the engaging member or the spiral member and the fixing member; or, In the cover body interlocking structure, the non-circular cover button mounting hole is a non-circular hole shaped like a dumbbell. Accordingly, In the cover button interlocking structure, the non-circular interlocking section on the plug-in board that protrudes outward is a dumbbell-shaped non-cylindrical body that is similar in shape to the mounting hole; or, In the cover button interlocking structure, the plug board is inserted into the cover button mounting hole, accommodated in the external tube, and fixed on the end cover of the external fixing member by rotating a set angle; and / or, A plurality of slots extending axially from the end surface of the inner tube by a portion of the tube length are arranged on the side wall of the inner tube, so that the inner tube has radial elasticity and can be expanded and fixed in the outer tube when inserted into the outer tube; and / or, A concave hole or a through hole for clamping the cover button is provided next to the cover button mounting hole on the cover body or on the end cover of the outer fixing piece connected to the cover body, and correspondingly, a protrusion is provided at a corresponding position on the opposite side of the plug board on the cover button, so that when the plug board is rotated to a set angle, the protrusion is clamped into the concave hole or the through hole; and / or, The connecting through-hole on the cover body is a circular hole, a rectangular hole, or a polygonal hole; and / or, In the cover button interlocking structure, a connecting section is axially extended on the outer end of the plug-in board on the cover button, the outer contour of the connecting section is smaller than the cover button mounting hole, and its axial length d1 is equivalent to the axial length D1 of the cover button mounting hole. A convex shoulder is connected to the outer end of the connecting section, or a convex shoulder is separately connected to the outer end of the connecting section. A cylinder and an annular groove are respectively arranged on the two adjacent end surfaces of the connecting section and the convex shoulder, and the cylinder is inserted into the annular groove. At the same time, a screw is added, and screw holes are arranged on the plug-in board and the connecting section, and screw holes are arranged on the convex shoulder. The screw connects the separate connecting section and the convex shoulder as a whole, and a spring is passed through the screw rod between the connecting section and the convex shoulder, and the spring is placed in the cylinder. The outer contour of the convex shoulder is larger than the maximum length of the cover button mounting hole, so that when the plug-in board of the cover button is inserted into the cover button mounting hole, the convex shoulder abuts against the outer side surface of the cover of the cover body or the outer fixing member, and the outer side of the convex shoulder is a knob; or, The bottom surface of the inner tube is indented inwardly by a distance relative to the outer side surface of the cover body, and / or the bottom surface of the outer tube is indented inwardly by a distance relative to the inner side surface of the cover body; or The locking and unlocking structure comprises a conical sleeve cap (C12), a compression spring (C13), an inner conical cylinder (C14), a locking steel ball (C15), an outer conical cylinder (C16) and an unlocking lifting handle. The conical sleeve cap is a conical cylinder, the small end of which is fixed on the inner side surface of the rear end cover of the cover button shell, the large end of the inner conical cylinder is inserted into the large end of the conical sleeve cap and pressed against the conical inner wall of the conical sleeve cap, the compression spring is arranged between the conical sleeve cap and the inner conical cylinder, the three locking steel balls are radially movably embedded in the radial through holes (C14a) on the conical side wall of the inner conical cylinder, a boss A (C141) is arranged at the center of the end cover of the front end of the inner conical cylinder, and a pinhole (C141a) is arranged on the boss, the large end of the outer conical cylinder is inserted into the cover button shell and is combined and fixed with the large end of the conical sleeve cap, and a cover plate (C161) is arranged on the small end in front of the outer conical cylinder. , a through hole B (161a) is provided on the cover plate for the boss on the inner conical tube to pass through, and the conical side wall of the outer conical tube limits the part of the locking steel ball exposed outside the inner conical tube; the unlocking and pulling handle is a rod body, and the cross bar (C17a) at one end of the rod body is embedded in the handle slot on the front cover for limiting, and a cross bar pinhole is provided on the cross bar, and the inner conical tube is fixedly connected to the cross bar or pressed between the front cover and the boss A (C141) of the cover button shell by the compression spring, and the cross bar is connected to one end of a connecting rod, and the connecting rod is placed in the cover button shell and on the outside of the outer conical tube and the sleeve cap, and the other end of the connecting rod passes through the side wall of the cover button shell as a handle, or, the cross bar and the cover button shell are provided with a hinge fulcrum, and the other end of the connecting rod is connected to the button (C18c) and passes through the handle through-hole on the rear end cover of the cover button shell; or, A non-circular boss (B2b) is provided on the nut, and a matching rectangular pit or groove (B3a) is provided on the insertion portion (B31) of the connecting piece (B3).

4. The pot cover with easily detachable cover button according to claim 3, characterized in that: The sliding intercalation structure is: The cover body embedding structure provided on the outer end surface of the embedding piece in the cover body embedding assembly is a mutually parallel external convex plug-in portion or an internal concave plug-in groove; The cover button engaging structure is an inserting groove or inserting portion arranged on the inner side end surface of the cover button, which matches the inserting portion or inserting groove on the engaging member; the cover button and the cover body are detachably connected by inserting the inserting portion in the inserting groove; or, The rotating intercalation structure is: The cover body embedding structure provided on the outer end surface of the embedding piece in the cover body embedding assembly is a protruding plug-in plate, which is non-circular in shape, or a plug-in hole cavity provided on the outer end surface of the embedding piece, and a non-circular plug-in hole is provided at the end of the plug-in hole cavity; correspondingly, the cover button embedding structure is a plug-in hole cavity provided on the end surface of the cover button connecting end of the cover button, and a non-circular plug-in hole is provided on the plug-in hole cavity, or a protruding non-circular plug-in plate provided on the end surface of the cover button connecting end of the cover button; The maximum length of the plug board is less than the maximum length of the plug hole but greater than the minimum length of the plug hole, so that the plug board can pass through the plug hole and enter the plug hole cavity, and the plug board is stuck in the plug hole and cannot be pulled out after turning an angle; or, The spiral structure is a spiral connection structure with a locking and anti-retraction structure; and / or, On the cover body, the fixing structure between the engaging member or the spiral member and the fixing member is: One end of the fixing member has a fixing member flange, the fixing member flange is connected to a fixing member cylinder, the fixing member cylinder is provided with a clamping structure, the fixing member cylinder is inserted into the mounting hole of the cover body, and the fixing member flange is against the inner side surface of the cover body. The insert or spiral piece is provided with a fixing portion matching the fixing structure at one end of the inner side of the cover body, which is inserted into the fixing piece cylinder and fixed to the fixing piece cylinder of the fixing piece through the fixing structure, and a flange is provided on the outer side facing away from the cover body, and the cover body insert structure is provided on the end face of the flange, and the flange abuts against the outer side face of the cover body; or, on the cover body, the fixing structure between the insert or spiral piece and the fixing piece is: the fixing piece is a screw, the insert or spiral piece is a cylinder with a flange, a through hole is provided on the flange to communicate with the cylinder, a thread is provided on the inner wall of the through hole, and the outer end face of the flange of the insert or spiral piece A chimeric structure or a spiral structure is arranged on the cover, and the chimeric piece or the spiral piece abuts against the outer side surface of the cover body, and the fixing piece, i.e., the screw, passes through the inner side surface of the cover body through the mounting hole, and is screwed with the internal thread of the chimeric piece or the spiral piece so that the chimeric piece or the spiral piece is fixed on the cover body; or, the chimeric piece or the spiral piece includes a cylinder with a flange, a through hole is arranged on the flange to communicate with the cylinder, and also includes a hollow internally threaded rod, which is inserted into the through hole, and the fixing piece is a screw, which passes through the inner side surface of the cover body through the mounting hole, is inserted into the hollow internally threaded rod and is screwed and fixed thereto, and a cover chimeric structure or a cover spiral structure is arranged on the outer end surface of the flange of the chimeric piece or the spiral piece; or, In the cover body interlocking structure, the non-circular cover button mounting hole shaped like a dumbbell is: a small circular hole with a smaller diameter is used as a positioning hole in the middle, and two fan-shaped holes with two larger diameters and the same center are connected symmetrically on both sides of the center of the small circular hole to form a non-circular hole shaped like a dumbbell.

5. The pot cover with easily detachable cover button according to claim 4, characterized in that: In the sliding intercalation structure, The plug-in portion is two mutually parallel bent ridges arranged on the corresponding end surface, and correspondingly, the plug-in groove is a groove arranged on the corresponding end surface and corresponding to the bent ridges and parallel to each other; or, The plug-in portion is a convex block on the corresponding end surface, and at least two opposite edges thereof form outward convex ridges and are parallel to each other. Correspondingly, the plug-in slot is a slot arranged on the corresponding end surface and corresponding to the convex ridge, and two opposite side walls thereof match the two parallel edges of the convex block, and a port on at least one side of the plug-in slot is placed on the edge of the corresponding end surface to form a notch; or, The spiral connection structure with a clamping and anti-retraction structure is as follows: the stud is convexly arranged on the inner end surface of the cover button, which is a cylinder, and at least two radial transverse columns are evenly distributed on its side circumference. Correspondingly, the screw hole structure is as follows: a vertical circular groove is arranged on the outer side surface of the spiral member on the cover body spiral assembly or the inner side end surface of the cover button, and the center of the groove bottom surface of the circular groove is arranged with a depression corresponding to the cylindrical body of the stud, and a vertical groove corresponding to the number and position of the transverse columns on the stud is arranged on the side wall of the circular groove, and the vertically rising and falling vertical groove is arranged along the circumferential direction of the vertical groove. A downwardly curved spiral groove is extended, and at the lowest point of the spiral groove, a curved groove section opposite to the rising and falling direction of the spiral groove is smoothly transitioned to match the radial transverse column. To prevent withdrawal by means of a card fastening; and / or, In the rotating interlocking structure, the plug hole and the plug plate are: both are of similar shapes; and / or, The fixing structure of the engaging member or the spiral member and the fixing member is: The outer diameter of the fixing member cylinder in the fixing member is smaller than the aperture of the mounting hole on the cover body, one end of the inner side of the fixing member cylinder is closed, the outer edge of the closing plate thereon is larger than the aperture of the mounting hole to form an annular retaining edge constituting the fixing member flange for being clamped on the inner side of the cover body, and the side wall of the fixing member cylinder is provided with a plurality of slots extending from the end surface of the outer end thereof toward the closing plate and parallel to the axis of the fixing member cylinder, so that the side wall of the fixing member cylinder has a retractable elasticity; The engaging part or spiral part has a cylinder, whose outer diameter matches the inner diameter of the fixing part cylinder, so that the fixing part cylinder is expanded when the cylinder is inserted into the fixing part cylinder. When the fixing part and the engaging part or spiral part respectively penetrate the mounting holes from the inner side and the outer side of the cover body, the cylinder of the engaging part or spiral part is inserted into the fixing part cylinder and fastened into one by the restoring elastic force of the fixing part cylinder.

6. The pot cover with easily detachable cover button according to claim 5, characterized in that: The similar shapes are similar triangles with smaller plug-in boards and larger plug-in holes, or similar elliptical shapes with smaller plug-in boards and larger plug-in holes, or similar rectangular shapes with smaller plug-in boards and larger plug-in holes; or, The end of the spiral groove is provided with a curved groove section which is opposite to the lifting direction of the spiral groove and is used for locking and preventing retreat.

7. The pot cover with easily detachable cover button according to claim 5, characterized in that: A matching toothed structure is provided on the inner wall of the fixing member cylinder of the fixing member and the outer wall of the inserting member or the spiral member cylinder to form an anti-loosening structure; and / or, An annular groove is provided on the end surface of the flange of the engaging member or the spiral member facing the fixing member cylinder to match the end surface of the fixing member cylinder; and / or, An annular groove is provided on the bottom surface of the fixing member cylinder of the fixing member, i.e., the closing plate, to match the end surface of the cylinder on the insert or the spiral member, so that the end plate on the insert or the spiral member can fit and fix with the outer side surface of the cover body when matching with covers of different thicknesses; and / or, The cover body embedding assembly or the cover body spiral assembly further includes an elastic sealing gasket, which is arranged between the fixing member and the inner surface of the cover body; or, The cover body mosaic assembly or the cover body spiral assembly also includes an elastic sealing gasket, which includes a gasket cylinder, one end of which has a sealing gasket flange protruding radially outward, the gasket cylinder in the sealing gasket is inserted into the mounting hole of the cover body from the inner side of the cover body and is located outside the fixing part cylinder, the sealing gasket flange abuts against the inner side surface of the cover body, and the fixing part flange on the fixing part abuts against the sealing gasket flange.

8. A pot cover with a conveniently detachable cover button, characterized in that: A pot cover comprises a cover body and a cover button, wherein the cover button is fixed on the cover body through a cover body interlocking structure and a cover button interlocking structure. The cover body is provided with a mounting hole, The cover body engaging structure comprises an inner cover button fixing member, a closing cover, and an inner connecting pipe is arranged on an outer side of the closing cover facing the cover body. The cover button interlocking structure is that an outer connecting pipe is provided on the inner side surface of the cover button facing the cover body, and a handle is provided on the other side surface of the cover button. The inner connecting pipe is inserted into the mounting hole of the cover body, and the outer peripheral edge of the inner connecting pipe on the outer side surface of the closed cover is fitted with the inner side surface of the cover body. The outer connecting pipe on the cover button is cooperatively inserted into the inner connecting pipe, and the outer peripheral edge of the outer connecting pipe on the inner side surface of the cover button is fitted with the outer side surface of the cover body, thereby the inner cover button fixing piece fixes the cover button to the cover body.

9. The pot cover with easily detachable cover button according to claim 8, characterized in that: A plurality of slots are axially arranged inwardly from the outer end of the tube wall of the inner tube on the inner cover button fixing member, so that the tube wall of the inner tube has elasticity in the radial direction. When the outer tube of the cover button is inserted into the inner tube, the inner tube is propped up, so that the cover button is fixed more firmly; and / or, Matching circumferential grooves are provided on the inner wall of the inner connecting pipe and the outer wall of the outer connecting pipe so that the two are more firmly fixed; and / or, The mounting hole on the cover body is non-circular in shape, and the shapes of the inner connecting pipe on the inner cover button fixing piece and the outer connecting pipe on the cover button that fit therewith match the shape of the mounting hole on the cover body.

10. A cover button assembly in a pot lid with a conveniently detachable cover button as claimed in any one of claims 1 to 8, characterized in that: It includes a cover body chimeric structure or a cover body spiral structure and a cover button chimeric structure or a cover button spiral structure, wherein the cover button chimeric structure or the cover button spiral structure is arranged on the cover button, and the cover body chimeric structure or the cover body spiral structure matches the cover button chimeric structure or the spiral structure, thereby forming a chimeric structure or a spiral structure.

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