Cover button assembly capable of being conveniently disassembled and assembled from cover body of pot cover and pot cover thereof

Abstract

The utility model provides a cover button assembly capable of being conveniently disassembled and assembled from a cover body of a pot cover, which comprises a cover button shell, a slide way piece is fixedly arranged in the cover button shell, a longitudinal slide way is arranged on the cover button shell, an outer end plate and an inner end plate are respectively arranged at two ends of the cover button shell, an operation through hole is formed in the outer end plate, and a longitudinal mounting hole is formed in the inner end plate; the connecting block is movably arranged in the longitudinal slide way; the clamping and unlocking device comprises a central sleeve, an extrusion pin, a spring and a clamping piece, or the cover button shell is replaced by the cover button main body, the central sleeve is replaced by the clamping sleeve, the extrusion pin is replaced by the extrusion pin, and the clamping piece extends out of or retracts into the central sleeve or the clamping sleeve by driving the extrusion pin or the extrusion pin to form an unlocking state and a clamping state; and the cover button assembly can be conveniently disassembled from the cover body. The utility model further provides a pot cover comprising the assembly, so that the problem that a plurality of pot covers occupy a large space when the pot bodies of a plurality of pots are hung and stored due to various types of existing kitchen pots is solved, and the stacked pot cover bodies can be stored more stably.

Description

Technical Field

[0001] This utility model belongs to the field of kitchenware technology, and provides a lid knob assembly that can be easily installed and removed from the lid body, and also provides a pot lid including the lid knob assembly. Background Technology

[0002] In the prior art, as shown in Figure 1, a pot lid includes a lid body 01 and a lid knob 02, which is generally permanently fixed to the lid body 01 with screws. Traditionally, pot lids are stored by simply placing them over the pot. However, more and more pots are now hung up for storage, and with the increasing number of pots in modern kitchens, storing the matching lids becomes quite troublesome when the pots are hung. Stacking multiple lids together takes up considerable storage space due to the lid knobs, and the stacked lids are also unstable. Existing pot lids, whether the lid knob is separated from the lid body or installed together, involve a complex process, making it inconvenient to remove the lid knobs from existing pot lids for centralized collection. Utility Model Content

[0003] The purpose of this utility model is to improve the shortcomings of the prior art and provide a lid knob assembly that can be easily disassembled from the lid body of a pot lid. It also provides a pot lid with the lid knob assembly, thereby making it easy to disassemble and assemble the lid body and the lid knob assembly. This allows the lid knob to be easily removed when storing the pot lid, reducing the space occupied by storing multiple pot lids together and improving storage stability. When in use, the lid knob assembly and the lid body can be easily combined.

[0004] The purpose of this utility model is achieved as follows:

[0005] In this utility model, the following are defined: the side of the lid knob assembly facing the lid body is the inner side, and the opposite side is the outer side; the side of the lid body facing the pot is the inner side, and the side facing the lid knob is the outer side; the direction along the thickness of the lid is the longitudinal direction, and the direction perpendicular to it is the transverse direction.

[0006] The first technical solution:

[0007] A lid knob assembly that can be easily attached and detached from the lid body of a pot lid, comprising:

[0008] A cover is a cylindrical body with a slide rail fixed inside. A longitudinal slide rail is provided on the slide rail. An outer end plate and an inner end plate are respectively provided at both ends of the cylindrical body. An operation through hole is provided on the outer end plate, or an elastic plate portion is provided on at least part of the outer end plate, which corresponds to the longitudinal slide rail. A longitudinal mounting hole is provided on the inner end plate.

[0009] A connecting block is movably disposed in the longitudinal slide rail, or is movably disposed in the longitudinal slide rail with one outer end of the connecting block protruding outside the operating through hole;

[0010] A locking and unlocking device includes a central sleeve, a compression pin, a spring, and a locking component.

[0011] The center sleeve is a cylindrical body, fixed on the mounting hole of the cover and button shell. At least two pry hook through holes are provided on the side wall of the center sleeve, and an outer bottom cover is provided at the outer end of the center sleeve.

[0012] The first embodiment of the central sleeve and the fastener: the inner end of the central sleeve is an open end, at least two notches are opened on the open port, a hinge shaft is provided on the side wall of the notch, a swing rod is rotatably provided on the hinge shaft, and the fastener is provided on the swing rod;

[0013] The central sleeve and the fasteners also have a second option: the inner end of the central sleeve is a closed end, and at least two perforations are respectively provided on the side wall of the cylinder near the closed end. The number of fasteners with the same number of perforations is placed inside the central sleeve near the closed end. There is a lateral gap between each fastener. The relationship between each fastener and the perforation is that each fastener can be retracted in the central sleeve and can also be partially extended from the perforation.

[0014] The extrusion pin is longitudinally movable and fixed in the central sleeve. The size of its inner end is such that when the extrusion pin enters between the various fasteners, the fasteners rotate about the hinge axis, open laterally outward, or move laterally and extend outward to at least partially expose themselves outside the central sleeve to form a locked state. When the extrusion pin exits between the fasteners, each fastener can freely retract laterally inward to form an unlocked state.

[0015] One end of the spring is connected to the outer end of the extrusion pin, and the other end is connected to the outer bottom cover of the central sleeve.

[0016] A transmission mechanism is provided, with one end connected to the connecting block and the other end connected to the spring in the locking and unlocking device. When the connecting block is pressed longitudinally through the operating hole on the cover or through the elastic plate, the transmission mechanism drives the spring to resist the elastic force, causing the pressing pin to move into the center sleeve and exit between the locking components to form the unlocked state. When the connecting block is released, the pressing pin enters between the locking components under the action of the elastic force of the spring to form the locking state.

[0017] Preferably,

[0018] The central sleeve has a rectangular cross-section and is fixed in the mounting hole on the cover button shell. Alternatively, the central sleeve has a rectangular cross-section with a cylindrical section on the cylindrical body, on which a screw connection structure is provided. It is fixed by the mounting hole on the cover button and the matching screw connection structure on the central sleeve.

[0019] The transmission mechanism may include at least two linkage devices, each linkage device including a support rod and a pry bar. The outer end of the support rod is hinged to the connecting block, and its inner end is hinged to the outer end of the pry bar. The inner end of the pry bar is fixed with one end of a pry hook, and the other end of the pry hook passes through the corresponding pry hook through hole on the side wall of the central sleeve and enters the central sleeve to hook the spring.

[0020] In use, when the connecting block is pressed inward, the pry hook swings relative to the support rod with the pry bar, squeezing the spring and causing the squeezing pin to retract into the center sleeve and exit between the fasteners, so that the locking and unlocking device is in the unlocked state; when the connecting block is released, under the elastic force of the spring, the squeezing pin is pushed out of the center sleeve and into the fasteners, so that the locking and unlocking device is in the locked state.

[0021] Preferably,

[0022] In the aforementioned locking and unlocking device

[0023] When the center sleeve and the fastener are in the first configuration, the fastener is a locking roller or a locking bead, which is connected to the swing arm; when the center sleeve and the fastener are in the second configuration, the fastener is a locking roller or a locking bead, and the perforation on the center sleeve is a perforation that matches the locking roller or the locking bead.

[0024] When the center sleeve and card fastener are the second option,

[0025] Preferably, the position of the perforation on the central sleeve is such that when the fastener is placed on the bottom surface of the closed end, the fastener can extend or retract through the perforation.

[0026] Preferably, an extrusion roller is fixed to the inner end of the extrusion pin, the diameter of which is equivalent to that of at least two clamping rollers. When the extrusion roller is inserted into the gap between the clamping rollers, at least a portion of the clamping roller is extruded from the center sleeve, and the inner end face of the extrusion pin abuts against the clamping roller.

[0027] The extrusion pin and the center sleeve have rectangular cross-sections.

[0028] The second technical solution:

[0029] A lid knob assembly that can be easily attached and detached from the lid of a pot lid includes a lid knob body, a pressing pin, a retaining sleeve, and a spring.

[0030] The cover button body has a central longitudinal screw hole on its inner end face;

[0031] The extrusion pin is disposed in a longitudinal screw hole on the cover button body. The outer end face of the extrusion pin presses against the bottom surface of the longitudinal screw hole. The extrusion pin is provided with a pin flange, and an extrusion pin rod with a rectangular cross section extends on the inner side of the pin flange.

[0032] The retaining sleeve is one of the following two options:

[0033] Firstly, the retaining sleeve has a longitudinal rectangular through hole that matches the pressing pin on the pressing pin. The outer end of the retaining sleeve has a circular cross-section flange with an external thread that matches the central longitudinal threaded hole of the cover button body. At least two longitudinal notches are provided on the inner sidewall of the retaining sleeve, and a hinge shaft is provided in each notch to hinge one end of a rocker arm. A retaining device is fixed to the other end of the rocker arm. The minimum gap d between each retaining device is less than the corresponding width D of the pressing pin; or...

[0034] The locking sleeve and the locking fastener also have a second embodiment: the locking sleeve has a longitudinal rectangular perforation, the inner end of which is a closed end. At least two perforations are provided opposite to each other on the sleeve sidewall near the closed end. The number of locking fasteners is the same as the number of perforations. They are placed inside the locking sleeve near the closed end. There is a transverse gap between each locking fastener. The relationship between each locking fastener and the perforation is that each locking fastener can be retracted in the locking sleeve and can also partially extend out of the perforation. The relationship between the transverse gap of each locking fastener and the pressing pin is that when the pressing pin is inserted into the transverse gap, the locking fastener can partially extend out of the perforation, and when it is removed from the transverse gap, each locking fastener can freely retract into the perforation.

[0035] The spring is sleeved on the extrusion pin rod of the extrusion pin, with its outer end abutting against the pin flange of the extrusion pin and its inner end abutting against the outer end face of the retaining sleeve.

[0036] In use, rotating the lid knob body causes the bottom surface of the central longitudinal screw hole to press the pressing pin longitudinally within the longitudinal rectangular through-hole of the locking sleeve, compressing the spring. When the pressing pin enters between the locking members, the locking members swing laterally outward, or the locking members extend from the through-hole on the side wall of the locking sleeve to form a locked state. At this time, the inner end face of the lid knob body can abut against the outer surface of the lid. When the lid knob body is rotated in the opposite direction, the pressing pin is released, and under the action of the spring, the pressing pin can exit between the locking members, allowing the locking members to retract back into the locking sleeve to form an unlocked state.

[0037] Corresponding to the first scheme of the locking sleeve, the locking device is a locking roller connected to the swing arm, or a locking bead connected to the swing arm;

[0038] In the second embodiment corresponding to the locking sleeve, the locking element is a locking roller or locking ball placed in the locking sleeve, and the locking roller or locking ball matches the perforation on the locking sleeve;

[0039] When the locking sleeve and locking device are the second option,

[0040] Preferably, the position of the perforation on the retaining sleeve is such that when the retaining element is placed on the bottom surface of the closed end, the retaining element can extend or retract through the perforation.

[0041] Preferably, a compression roller is fixed to the inner end of the compression pin, which is equivalent to the diameter of at least two of the fasteners. When the compression pin is inserted into the gap between the fastening rollers, at least a portion of the fastener is squeezed out of the fastening sleeve, and the inner end face of the compression pin abuts against the fastener.

[0042] The position of the perforation on the center sleeve or the locking sleeve is close to the closed end, so that when the locking roller is placed on the bottom surface of the closed end, the locking device can extend or retract from the perforation. The squeezing roller fixed on the inner end of the squeezing pin has a diameter equivalent to that of at least two of the locking rollers. When the squeezing roller is inserted in the gap between the locking rollers and squeezes at least a portion of the locking roller out of the perforation, the inner end face of the squeezing pin abuts against the locking roller.

[0043] Corresponding to the first technical solution above, this utility model also provides a pot lid including the lid knob assembly, which includes a lid body and a lid knob mounting hole provided on the lid body. The lid knob mounting hole matches the cross-section of the central sleeve or extrusion pin in the lid knob assembly.

[0044] When using the lid, to install the lid button assembly onto the lid body, press the connecting block on the lid button assembly. Through the transmission mechanism, the pry hook hooks and squeezes the spring, causing the squeezing pin to disengage from the fasteners and be in an unlocked state. At this time, the squeezing pin in the lid button assembly can be passed through the lid button mounting hole on the lid body. Then, release the connecting block. Under the elastic force of the spring, the squeezing pin pops out and enters the fasteners, locking onto the inner side of the lid body, thus fixing the lid button assembly onto the lid body.

[0045] To remove the cover button assembly, press the connecting block to disengage the locking mechanism from between the locking mechanisms, and then pull the cover button assembly out of the cover mounting hole.

[0046] Corresponding to the second technical solution above, a pot lid includes a lid body. This lid button assembly cooperates with the lid body. A lid button mounting hole is provided on the lid body. It is a rectangular hole. The maximum inner diameter H of the lid button mounting hole is larger than or matches the minimum outer dimension h formed by the retracted fasteners at the inner end of the locking sleeve, but smaller than the lateral dimension of the fasteners after they extend out. Alternatively, the maximum inner diameter of the lid button mounting hole is larger than or matches the outer diameter of the locking sleeve, but smaller than the outer dimension of the fasteners extending out of the compression sleeve.

[0047] When the cover button assembly is inserted into the cover button mounting hole of the cover body, first insert the retaining sleeve and its front retaining roller into the cover button mounting hole of the pot lid. Then, screw the cover button body into the pot lid body so that the bottom surface of the central longitudinal screw hole abuts against the outer surface of the cover body. At this point, the pressing pin on the pressing pin in the cover button assembly inserts between the various retaining members on the retaining sleeve, causing the retaining members to extend laterally and lock onto the inner surface of the cover body, or inserts into the retaining sleeve and moves against the bushing, causing the spring ball on it to extend out from the retaining sleeve. Rotating the cover button body in the opposite direction will allow the pressing pin to disengage from between the retaining members, at which point the cover button assembly can be removed from the cover body.

[0048] This utility model provides a pot lid with a convenient detachable knob and its knob assembly, which changes the existing pot lid structure where the knob is fixed to the lid body by screws or other structures. Instead, it provides a knob assembly that can be easily removed and installed from the pot lid by pressing or rotating, thus changing the traditional way of using and storing pot lids. When storing, the lid body and knob are separated by a convenient disassembly structure, allowing for the stacking of various pot lids or their placement on a shelf. When in use, the knob assembly can be quickly installed on the lid body. This addresses the problem of large space occupied by multiple pot lids when hanging and storing various types of pots in the kitchen, and also makes stacked pot lids more stable.

[0049] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0050] Figure 1 is a schematic diagram of the pot lid structure in the prior art;

[0051] Figure 2 is a schematic diagram of the cover button assembly of Embodiment 1 of this utility model;

[0052] Figure 3 is a schematic diagram of the cover shell in Example 1;

[0053] Figure 4 is a schematic diagram of the locking and unlocking device in Example 1;

[0054] Figure 5 is a schematic diagram of the structure of the pry bar and pry hook in the transmission mechanism of Example 1;

[0055] Figure 6 is a schematic diagram of the locking and unlocking device in the unlocked state in Embodiment 1;

[0056] Figure 7 is a schematic diagram of the locking and unlocking device in the locked state in Embodiment 1;

[0057] Figure 8 is a schematic diagram of the structure of the lid knob assembly combined with the lid body of the pot lid in Embodiment 1;

[0058] Figure 9 is a schematic diagram of the structure of the locking roller and the cover button mounting hole on the lid body in the unlocked state of the cover button assembly in Embodiment 1.

[0059] Figure 10 is a schematic diagram of the structure of the locking roller and the lid button mounting hole on the lid body in the locking state of Embodiment 1.

[0060] Figure 11 is a schematic diagram of the locking and unlocking device of Embodiment 2 of the cover button assembly provided by this utility model in the unlocked state;

[0061] Figure 12 is a schematic diagram of the locking and unlocking device of Embodiment 2 in the locked state;

[0062] Figure 13 is a schematic diagram showing the state in which the pin and ball are engaged in the cover button mounting hole of the cover when the cover button assembly of Embodiment 2 is combined with the cover body.

[0063] Figure 14 is a structural schematic diagram of Embodiment 3 of the cover button assembly provided by this utility model;

[0064] Figure 15 is a schematic diagram of the exploded structure of Example 3;

[0065] Figure 16 is a schematic diagram of the lid knob assembly and the pot lid body in Embodiment 3;

[0066] Figure 17 is a schematic diagram of the lid knob assembly of Embodiment 3 being fixed on the pot lid body;

[0067] Figure 18 is a structural schematic diagram of Embodiment 4 of the cover button assembly provided by this utility model, showing the unlocked state;

[0068] Figure 19 is a schematic diagram of the structure along direction A in Figure 18;

[0069] Figure 20 is a schematic diagram of the structure in direction B of Figure 18;

[0070] Figure 21 is a structural schematic diagram of Embodiment 4 of the cover button assembly shown in Figure 18, showing the locked state;

[0071] Figure 22 is a schematic diagram of the structure along direction A in Figure 21;

[0072] Figure 23 is a structural schematic diagram of Embodiment 5 of the cover button assembly provided by this utility model, wherein the cover button body is missing;

[0073] Figure 24 is a structural schematic diagram of Embodiment 5, including the cover button body, which shows the unlocked state;

[0074] Figure 25 is a structural schematic diagram of Example 5, showing the locked state;

[0075] Figure 26 is a structural schematic diagram of a preferred embodiment of Embodiments 4 and 5, showing the unlocked state;

[0076] Figure 27 is a structural schematic diagram of a preferred example of Embodiments 4 and 5, showing the locked state. Detailed Implementation

[0077] As shown in Figures 2 to 7, Embodiment 1 of the cover button assembly provided by this utility model includes:

[0078] A cover shell 1 is a cylindrical body. A slide rail 11 is fixed inside the cylindrical body, and a longitudinal slide rail 111 is provided on it. An outer end plate 12 and an inner end plate 13 are respectively provided at both ends of the cylindrical body. An operation through hole 121 is provided on the outer end plate 12, corresponding to the longitudinal slide rail. A longitudinal mounting hole 131 is provided on the inner end plate 13, as shown in Figure 3. In practical applications, the entire outer end plate 12 can also be made into an elastic plate, or an elastic plate can be provided on the part of the outer end plate 12 corresponding to the longitudinal slide rail 111.

[0079] A connecting block 2 is movably disposed within the longitudinal slide rail 111; the connecting block 2 can be pushed by reaching in through the operating hole 121 on the outer end plate 12, or by pressing the elastic plate, which indents and pushes the connecting block 2. The connecting block 2 may also have an extension that extends beyond the operating hole 121. In this way, the connecting block 2 can be operated from outside the cover housing 1.

[0080] A locking and unlocking device 3, as shown in Figures 4 to 7, includes a central sleeve 31, a pressing pin 32, a spring 33, and a locking device 34.

[0081] The center sleeve 31 is a cylindrical body, fixed to the mounting hole 131 of the cover and button shell 1. In this embodiment, it is fixed by a matching screw structure 310 on the mounting hole 131 and the center sleeve 31. It can also be fixed by other means, such as welding or injection molding. The outer end of the center sleeve 31 is provided with an outer bottom cover 311, and the inner end is an open end. Two notches 312 are opened on the opposite side walls of the open end. The fasteners 34 are provided on the side walls of the notches. Specifically, the fasteners 34 are fastening roller structures 341, which include a hinge shaft 3411, a rocker arm 3412, and a fastening roller 3413. The fastening roller 3413 can also be a ball. The hinge shaft 3411 is provided on the side wall of the notch. The rocker arm 3412 is rotatably provided on the hinge shaft 3411. The fasteners, specifically the fastening roller 3413, are provided on the rocker arm 3412.

[0082] The extrusion pin 32 is longitudinally movable and fixed in the center sleeve 31. A spring 33 is provided between the extrusion pin 32 and the outer bottom cover 311 of the center sleeve 31. One end of the spring 33 is connected to the outer end of the extrusion pin 32, and the other end is connected to the outer bottom cover of the center sleeve 31 (see Figure 4). The spring 33 and the outer bottom cover of the center sleeve 31 can also be in a pressing relationship.

[0083] The outer diameter of the extrusion pin 32 is such that when the extrusion pin 32 enters between the clamping rollers 3413, the clamping rollers 3413 rotate around the hinge shaft 3411 and open laterally outward to form a clamping state. When the extrusion pin 32 exits between the clamping rollers 3413, the clamping rollers 3412 can freely retract laterally inward to form an unlocked state.

[0084] Both the center sleeve 31 and the extrusion pin 32 can have rectangular cross-sections; however, there is a cylindrical section on the cylinder with a threaded structure 310 (see Figure 6). A pry hook through hole 313 is provided on each of the two opposite side walls of the center sleeve 31 at a position corresponding to the spring 33.

[0085] A transmission mechanism 4, as shown in Figure 4, includes two linkage devices. Each linkage device includes a support rod 41 and a pry bar 42. The outer end of each support rod 41 is hinged to the connecting block 2, and the inner end of each support rod 41 is hinged to the outer end of a pry bar 42. The included angle between the support rod 41 and the pry bar 42 is less than 180°, and the bending directions of the two linkage devices are opposite. One end of a pry hook 43 (see Figure 5) is fixed to the inner end of the pry bar 42. The other end of the pry hook 43 passes through the corresponding pry hook through hole 313 on the side wall of the central sleeve 31, enters the central sleeve 31, and hooks the spring 33. When the connecting block 2 is pressed inward, the support rod 41 swings about its hinge axis with the connecting block 2, while the pry bar 42 swings about its hinge axis with the support rod 41. Then, the pry hook 43 squeezes the spring 33 as the pry bar 42 swings relative to the support rod 41. When compressed, the compression pin 32 connected to the spring 33 retracts into the central sleeve 31, allowing the locking roller 3413 to retract freely laterally, as shown in Figure 6, thus placing the locking and unlocking device in the unlocked state. When the connecting block 2 is released, under the elastic force of the spring 33, the compression pin 32 is pushed out of the central sleeve 31 and into the space between the locking rollers 3413, causing the locking rollers 3413 to extend laterally outward and become unable to retract, as shown in Figure 7, thus placing the locking and unlocking device in the locked state.

[0086] When a hand is inserted into the cover button 1 through the perforation 121 on the outer end plate 12 to press the connecting block 2, the spring 33 is compressed, causing the locking and unlocking device to be in the unlocked state. When the hand is released, the locking and unlocking device is locked by the action of the spring 33. If the connecting block 2 extends out through the operating perforation 121, the transmission mechanism 4 can be operated conveniently without inserting a hand into the cover button 1. If the cover button is provided with an elastic plate, pressing the elastic plate from outside the cover button will deform it inward, thereby pushing the connecting block 2 to operate the transmission mechanism 4.

[0087] The aforementioned lid knob assembly, together with a lid body 4, forms a pot lid, as shown in Figure 8. A lid knob mounting hole 41 is provided on the lid body 4. The lid knob mounting hole 41 matches the cross-section of the compression pin 32 in the lid knob assembly, so that when the connecting block 2 is pressed by hand to compress the spring 33, the center sleeve 31 can be inserted into the lid knob mounting hole 41 when the lid knob assembly is in the unlocked state (see Figure 9). The fastener on it is located on the inner side of the lid body 4. At this time, the open end of the center sleeve is flush with the inner port of the mounting hole 41 of the lid body. When the cover button assembly is released, the extrusion pin 32 in the center sleeve 31 extends between the locking rollers 3413, and the locking rollers extend laterally to form a locking state, thus fixing the cover button assembly to the cover body 4 (see Figures 8 and 10). When removing the cover button assembly, simply press the connecting block 2 again, and the compression spring 33 will cause the extrusion pin 32 to exit the locking rollers 3413 and be in the unlocked state (see Figure 9). Then, the cover button assembly can be pulled out of the cover button mounting hole.

[0088] In Embodiment 2 of the cover button assembly provided by this utility model, the locking roller in the locking and unlocking device of Embodiment 1 is replaced with a locking bead, as shown in Figures 11 and 12. The locking device is replaced by a locking bead 342 instead of the locking roller 341. Correspondingly, the locking bead 342 is fixed on the swing rod hinged to the notch opened on the side wall of the open end of the inner end of the central sleeve 31. In this Embodiment 2, the central sleeve 31 with a rectangular cross section has a locking bead 342 on each side. The locking bead 342 can be made of an elastic material, such as silicone, as shown in Figure 13.

[0089] When in use, pressing the connecting block 2 will compress the spring 33 through the transmission device, causing the pressing pin 32 to disengage from between the retaining beads. The cover button assembly can then be inserted into the cover button mounting hole on the cover body. Releasing the connecting block 2 will cause the pressing pin 32 to be inserted between the retaining beads under the action of the spring, thus locking the cover button assembly onto the cover body.

[0090] Embodiment 3 of the cover button assembly provided by this utility model, as shown in Figures 14 and 15, includes a cover button body 101, a pressing pin 102, a locking sleeve 103, and a spring 104.

[0091] A longitudinal screw hole 1011 is provided on the inner end face of the cover button body 101;

[0092] A pressing pin 102 is disposed in the longitudinal threaded hole 1011. The outer end face 1020 of the pressing pin 102 presses against the bottom surface 1012 of the longitudinal threaded hole 1011. A pin flange 1021 is provided on the pressing pin 102, and a pressing pin rod 1022 with a rectangular cross-section extends from the inner side of the pin flange 1021. A retaining sleeve 103 has a longitudinal rectangular through hole 1031, which matches the pressing pin rod 1022 on the pressing pin 102. A sleeve flange 1032 with a circular cross-section is provided at the outer end of the retaining sleeve 103. An external thread is provided on the sleeve flange 1032 to match and screw into the longitudinal threaded hole 1011 on the cover button body 101. At least two longitudinal notches 1033 are provided on the inner end sidewall of the retaining sleeve 103. A hinge shaft 1034 is provided on the upper part, and one end of a swing rod 1035 is hinged thereto. A locking roller 1036 is fixed at the other end of the swing rod 1035. The minimum gap d between each locking roller 1036 is less than the corresponding width D of the pressing pin.

[0093] Spring 104 is sleeved on the pressing pin 1022 of pressing pin 102, with its outer end abutting against the pin flange 1021 of pressing pin 102 and its inner end abutting against the outer end face 1037 of locking sleeve 103.

[0094] In use, the lid knob assembly is installed on the lid body 105 of the pot lid. A lid knob mounting hole 1051, which is rectangular, is provided on the lid body 105, with a maximum inner diameter H. The pressing pin 102, spring 104, and retaining sleeve 103 are sequentially inserted into the longitudinal screw hole 1011 of the lid knob body 101. The retaining sleeve 103 is screwed onto the lid knob body 105, but the pressing pin rod 1022 on the pressing pin 102 has not yet entered the gap between the retaining rollers 1036 on the retaining sleeve 103. Then, the lid knob assembly is inserted into the lid knob mounting hole 1051 of the lid body 105, as shown in Figure 16. Then, rotating the cover button body 101, since the locking sleeve 103 and the cover button mounting hole 1051 are non-circular rectangular holes, the locking sleeve 103 does not rotate, while the cover button body moves towards the cover body 105. Thus, the bottom surface 1012 of the longitudinal screw hole 1011 of the cover button body 101 presses the pressing pin 102 into the longitudinal rectangular through hole 1031 of the locking sleeve 103. Subsequently, the compression spring 104 presses the pin 1022 into the gap between the locking rollers 1036 of the locking sleeve 103. Since the outer dimension D of the pressing pin 1022 is larger than the gap d of the locking rollers 1036, at least two locking rollers 1036 can be pushed outwards. The swing arm 1035 connecting the locking rollers 1036 swings laterally around the hinge axis 1034 within the longitudinal notch 1033 on the locking sleeve 103. The locking rollers 1036... The lateral outward movement causes its outer contour h to be greater than the maximum inner diameter H of the cover button mounting hole 1051 on the cover body 105, thus securing the cover button assembly to the cover body, as shown in Figure 17. At this time, the inner end face 1013 of the cover button body 101 abuts against the outer end face of the cover body for fixation. When the cover button assembly needs to be removed, the cover button body 101 is rotated in the opposite direction to retract, releasing the cover button body from the pressure on the pressing pin 102. Under the elastic force of the spring 104, the pressing pin 102 is pushed back, and the pressing pin rod 1022 on it exits from the gap of the locking roller 1035 of the locking sleeve 103. Without the pressing pin rod 1022, the locking roller 1035 on the locking sleeve 103 can retract laterally, thereby allowing the cover button assembly to be removed from the cover body 105.

[0095] Figures 18 and 22 show Embodiment 4 of the cover button assembly provided by this utility model. Embodiment 4 is an embodiment of Embodiment 1, in which the central sleeve and the fastener are changed, while the transmission mechanism remains unchanged.

[0096] The inner end of the center sleeve 31' is changed to a closed end, and at least two perforations 3101 are provided opposite to each other on the side wall of the cylinder near the closed end (see Figures 18 to 20), with a length of L and a width of M. The same number of locking rollers 343 as the number of perforations 3101 are placed inside the center sleeve 31' near the closed end. When all the locking rollers 343 are in the center sleeve, they have a maximum lateral spacing H' between them. Roller shafts 3431 are provided at both ends of each locking roller 343. The relationship between each locking roller 343 and the perforation 3101 is that the length l of each locking roller 343 is less than the corresponding length L of the perforation 3101, but the total length l-1 of the roller shaft is greater than the corresponding length L of the perforation 3101. The clamping roller 343 may also be without a roller shaft. In this case, the length l of the clamping roller 343 is less than the corresponding length L of the perforation 3101, but the width M of the perforation 3101 should be less than the diameter r of the clamping roller. This allows it to be retracted in the central sleeve (see Figures 18 and 19) and partially protrude from the perforation (see Figures 21 and 22).

[0097] In this embodiment 4, an extrusion roller 321 is fixed to the inner end of the extrusion pin 32', and its lateral dimension D' is greater than the lateral spacing H' of each clamping roller 343. Under the action of the transmission mechanism, the extrusion pin 32' can be longitudinally moved and fixed in the central sleeve 31', inserting or retracting between the clamping rollers 343.

[0098] In use, pressing the connecting block 2 compresses the spring 33, causing the pressing roller 321 on the pressing pin 32' to disengage from between the locking rollers 343. The locking roller 343 can then freely retract into the center sleeve 31', entering the unlocked state. At this time, the center sleeve of this cover button assembly is inserted into the mounting hole 41 of the cover body 4. The through hole 3101 of the center sleeve 31' is inside the inner side of the cover body, while the inner end face of the cover button shell 1 abuts against the outer side of the cover body 4. When the cover button assembly is released, the pressing pin 32' in the center sleeve 31 is inserted between the spring 33 and the locking roller 343. The locking roller 343 moves laterally, partially extending out of the through hole 3101 to form a locked state, as shown in Figures 21 and 22. The cover button assembly is then locked onto the cover body, and the roller shaft 3431 on the locking roller 343 is locked in the through hole 3101, preventing the locking roller 343 from disengaging.

[0099] Figures 23 and 24 show Embodiment 5 of the cover button assembly provided by this utility model. Embodiment 5 is based on the transmission mechanism of Embodiment 3, combined with the structural features of the center sleeve and fastener of Embodiment 4.

[0100] As shown in Figure 23, the retaining sleeve 103' has a longitudinal rectangular through hole 1031', the inner end of which is a closed end. At least two through holes 10311 are respectively engaged on the sleeve sidewall near the closed end. The retaining rollers 1036', with the same number of through holes 10311, are placed inside the retaining sleeve 103' near the closed end. There is a lateral spacing between each retaining roller (see Figure 18 of Embodiment 4). The relationship between each retaining roller 1036' and the through hole 10311 is that each retaining roller can be retracted into the retaining sleeve 103' and can also partially extend out from the through hole 10311 on the retaining sleeve 103'. Specifically, it can be the same as the relevant content of Embodiment 4. The pressing pin 102' is the same as in Embodiment 4, with a pressing roller 1021 fixed to its inner end. The relationship between its lateral dimension and the lateral spacing of each retaining roller 1036' is the same as the relevant content of Embodiment 4.

[0101] In use, rotating the cover button body 101 compresses the spring 104, causing the compression pin 102' to move inward through the longitudinal rectangular through-hole 1031', so that the compression roller 1021 enters between the locking rollers 1036'. The locking rollers move laterally outward and partially extend from the through-hole 10311 of the locking sleeve 103 (see Figure 25) to form a locked state. If the cover button body is rotated in the opposite direction, under the elastic force of the spring 104, the compression pin 102' retracts, and the compression roller 1021 exits between the locking rollers 1036' (see Figure 25). Figure 24 This allows the locking roller 1036' to freely retract into the extrusion sleeve 103', thus creating an unlocked state.

[0102] The locking rollers in the aforementioned embodiments 4 and 5 can also be modified into locking balls. Accordingly, the perforations need to be adjusted so that the locking balls can be retracted into the central sleeve or locking sleeve, and can also partially protrude from the perforations.

[0103] Figures 26 and 27 show a preferred example of Embodiments 4 and 5, wherein:

[0104] The position of the perforation 3101 or perforation 10311 on the center sleeve 31' or the locking sleeve 103' is substantially close to the closed end, so that when the locking roller 343 or the locking roller 1036 is placed on the bottom surface of the closed end, the locking device can extend or retract from the perforation.

[0105] A compression roller 321 fixed to the inner end of compression pin 32' or compression roller 1021 fixed to the inner end of compression pin 102' has a diameter equivalent to that of at least two locking rollers 343 or 1306. When the compression roller is inserted into the gap between the locking rollers and at least a portion of the locking roller is extruded through the hole, the inner end face of compression pin 32' or 102' abuts against the locking roller. In this way, the locking roller is not easy to loosen in the locked state, and the locking is secure.

Claims

1. A knob assembly which can be easily attached to and detached from a cover of a pot cover, characterized in that: The application relates to a cover button assembly which can be conveniently dismounted from a cover of a pot, comprising the following parts: a cover button shell which is a cylinder, a sliding member is fixed in the cylinder, a longitudinal sliding channel is arranged on the sliding member, outer end plates and inner end plates are arranged at two ends of the cylinder respectively, an operating through hole is arranged on the outer end plate, or elastic plate parts are arranged on at least partial parts of the outer end plate and correspond to the longitudinal sliding channel, a longitudinal mounting hole is arranged on the inner end plate; a connecting block is movably arranged in the longitudinal sliding channel; a clamping and unlocking device comprises a central sleeve, a pressing pin, a spring and a clamping member, the central sleeve and the clamping member are one of the following two schemes: one scheme is that the central sleeve is a cylinder, is fixed on the mounting hole of the cover button shell, at least two pry hook through holes are arranged on the side wall of the central sleeve, an outer bottom cover is arranged at the outer end of the central sleeve, the inner end is an open end, at least two slots are arranged on the open end, hinge shafts are arranged on the side walls of the slots, swinging rods are rotatably arranged on the hinge shafts, and the clamping member is arranged on the swinging rods; the other scheme is that the central sleeve is a cylinder, is fixed on the mounting hole of the cover button shell, at least two pry hook through holes are arranged on the side wall of the central sleeve, an outer bottom cover is arranged at the outer end of the central sleeve, the inner end is a closed end, at least two through holes are oppositely arranged on the side wall of the cylinder near the closed end, the same number of clamping members as the through holes are arranged in the central sleeve near the closed end, and each clamping member has a transverse interval with the through holes, and the relationship between each clamping member and the through hole is that each clamping member can be shrunk in the central sleeve and can be partially stretched out of the through hole; the pressing pin is longitudinally movably fixed in the central sleeve, the inner side end of the pressing pin is sized so that when the pressing pin enters between each clamping member, the clamping member of the first scheme is rotated around the hinge shaft and is transversely stretched outwards, or the clamping member of the second scheme is transversely moved and at least partially exposed outside the central sleeve to form a clamping state, and in the above two schemes, when the pressing pin exits between the clamping members, each clamping member can be freely transversely retracted to form an unlocking state; one end of the spring is connected with the outer end of the pressing pin, and the other end is connected with the outer bottom cover of the central sleeve; a transmission mechanism is connected with the connecting block at one end and is connected with the spring in the clamping and unlocking device at the other end; when the connecting block is pressed to move longitudinally through the operating through hole on the cover button shell or through the elastic plate part, the transmission mechanism drives the spring to move the pressing pin into the central sleeve and exit between the clamping members to form the unlocking state, and when the connecting block is released, the pressing pin enters between the clamping members to form the clamping state under the elastic force of the spring.

2. The cover button assembly which can be conveniently dismounted from a cover of a pot according to claim 1, wherein the cylinder of the central sleeve is rectangular in cross section, is fixed in the mounting hole of the cover button shell, or the central sleeve is rectangular in cross section, has a cylindrical segment on the cylinder, and has screw connection structures arranged on the cylindrical segment, is fixed through the mounting hole of the cover button and the matching screw connection structures on the central sleeve, and / or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The transmission mechanism comprises at least two connecting rod devices, each of which comprises a strut and a lever, the outer end of the strut is hinged to the connecting block, the inner end of the strut is hinged to the outer end of the lever, the inner end of the lever is fixed with one end of a hook, the other end of the hook passes through a corresponding hook hole in the side wall of the central sleeve into the central sleeve and hooks the spring; and / or, The outer end of the connecting block protrudes outside the operating hole; and / or, Corresponding to the first scheme of the central sleeve and the clamping piece, the clamping piece is a clamping roller or a clamping bead, which is connected with the swing lever; Corresponding to the second scheme of the central sleeve and the clamping piece, the clamping piece is a clamping roller or a clamping bead, and the hole in the central sleeve is a hole matched with the clamping roller or the clamping bead; and / or, The position of the hole in the central sleeve is such that when the clamping piece is placed on the bottom surface of the closed end, the clamping piece can extend out of or retract into the hole.

3. The cover knob assembly which can be conveniently disassembled from above the cover body of the pot cover according to claim 2, characterized in that: A pressing roller is fixed to the inner end of the pressing pin, and the diameter of the pressing roller is equivalent to that of at least two clamping rollers, and when the pressing roller is inserted into the gap between the clamping rollers, the inner end surface of the pressing pin abuts against the clamping rollers.

4. The knob assembly of claim 1 or 2, wherein: The pressing pin and the central sleeve have a rectangular cross section.

5. A lid for a pot comprising the knob assembly of any one of claims 1 to 4, wherein: A cover body is provided with a cover knob mounting hole matched with the cross section of the central sleeve or the pressing pin shaft of the cover knob assembly.

6. A knob assembly which can be easily attached to and detached from a cover of a pot cover, characterized in that: A cover knob body, a pressing pin, a clamping sleeve and a spring, The cover knob body is provided with a central longitudinal screw hole on the inner end surface; The pressing pin is arranged in the longitudinal screw hole of the cover knob body, and the outer end surface of the pressing pin abuts against the hole bottom surface of the longitudinal screw hole, the pressing pin is provided with a pin flange, and a rectangular cross section pressing pin rod is arranged on the inner side of the pin flange; The clamping sleeve is one of the following two schemes: One of the clamping sleeves is provided with a longitudinal rectangular hole matched with the pressing pin rod on the pressing pin, the outer end of the clamping sleeve is provided with a sleeve flange with a circular cross section, the outer thread on the sleeve flange is matched and screwed with the central longitudinal screw hole of the cover knob body, at least two longitudinal grooves are arranged on the inner end side wall of the clamping sleeve, a hinged shaft is arranged on each longitudinal groove, one end of a swing lever is hinged to the hinged shaft, and a clamping piece is fixed to the other end of the swing lever, and the minimum gap d between each clamping piece is less than the corresponding width D of the pressing pin rod. Secondly, the card fixing sleeve has a longitudinal rectangular hole, the inner end of the hole is a closed end, and at least two holes are oppositely arranged on the sleeve side wall near the closed end. The same number of card fixing members are arranged in the card fixing sleeve near the closed end, and each card fixing member has a transverse interval. The relationship between each card fixing member and the hole is that each card fixing member can be retracted in the card fixing sleeve and can be partially extended from the hole. The relationship between the transverse interval of each card fixing member and the extrusion pin rod is that when the extrusion pin rod is inserted into the transverse interval, the card fixing member can be partially extended from the hole, and when the extrusion pin rod is withdrawn from the transverse interval, each card fixing member can be freely retracted into the hole. The spring is sleeved on the extrusion pin rod of the extrusion pin, the outer end of the spring abuts against the pin flange of the extrusion pin, and the inner end of the spring abuts against the outer end face of the card fixing sleeve.

7. The knob assembly of claim 6, wherein: Corresponding to the first scheme of the card fixing sleeve, the card fixing member is a card fixing roller connected with the swing rod, or a card fixing ball connected with the swing rod; Corresponding to the second scheme of the card fixing sleeve, the card fixing member is a card fixing roller or a card fixing ball arranged in the card fixing sleeve, and the card fixing roller or the card fixing ball matches the hole on the card fixing sleeve; and / or, The position of the hole on the card fixing sleeve is such that when the card fixing member is arranged on the bottom surface of the closed end, the card fixing member can be extended or retracted from the hole; and / or, An extrusion roller is fixedly arranged at the inner end of the extrusion pin rod of the extrusion pin, and the diameter of the extrusion roller is equivalent to that of at least two card fixing rollers. When the extrusion roller is inserted into the interval between the card fixing members, at least a part of the card fixing members is extruded out of the card fixing sleeve, and the inner end face of the extrusion pin abuts against the card fixing members.

8. The knob assembly of claim 7, wherein: The position of the hole on the card fixing sleeve is close to the closed end, so that when the card fixing roller is arranged on the bottom surface of the closed end, the card fixing member can be extended or retracted from the hole. An extrusion roller is fixedly arranged at the inner end of the extrusion pin rod of the extrusion pin, and the diameter of the extrusion roller is equivalent to that of at least two card fixing rollers. When the extrusion roller is inserted into the interval between the card fixation rollers, at least a part of the card fixation rollers is extruded out of the hole, and the inner end face of the extrusion pin abuts against the card fixation rollers.

9. A pot cover comprising the knob assembly of any one of claims 6 to 8, wherein: The knob assembly is matched with a cover body, the cover body is provided with a knob mounting hole, the knob mounting hole is a rectangular hole, the maximum inner diameter H of the knob mounting hole is greater than the minimum outer size h formed by the card fixing members at the inner end of the card fixing sleeve, or is matched with the minimum outer size h, but is smaller than the transverse size of the card fixing members after being extended, or the maximum inner diameter of the knob mounting hole is greater than the outer diameter of the card fixing sleeve, or is matched with the outer diameter of the card fixing sleeve, but is smaller than the outer size of the card fixing members after being extended.

10. The lid of claim 9, wherein: When the knob assembly is inserted into the knob mounting hole of the cover body, the extrusion pin rod on the extrusion pin in the knob assembly is inserted between the clamping pieces on the clamping sleeve so that the clamping pieces extend transversely and are clamped on the inner side surface of the cover body when the knob body is screwed into the cover body to abut against the outer side surface of the cover body.

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