Counter locking knob and door lock structure
By dislocating the projection of anti-detachment and weight reduction grooves on the cover end surface of the anti-detachment and weight reduction grooves, the problem of interference between the anti-detachment and weight reduction grooves in the prior art is solved, reducing the difficulty of mold manufacturing and improving the forming efficiency of the anti-detachment and the weight reduction grooves.
Patent Information
- Application Number
- CN202420489470.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-13
AI Technical Summary
The anti-lock knob in the existing door lock structure increases the difficulty of mold manufacturing due to the interference between the anti-detachment buckle and the weight reduction groove, and reduces the forming efficiency of the anti-lock knob.
By dislocating the projection of the anti-detachment buckle and the weight reduction groove on the cover joint end surface, the anti-detachment buckle and the weight reduction groove can avoid each other, thereby reducing the difficulty of mold manufacturing and improving the forming efficiency of the anti-lock knob.
The mutual avoidance of anti-detachment buckle and weight-reducing groove is achieved, reducing the difficulty of mold manufacturing and improving the forming efficiency of the anti-lock knob.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of door locks, and in particular to an anti-locking knob and a door lock structure. Background Art
[0002] In order to improve the assembly processability, the anti-locking knob in the existing door lock structure is provided with an anti-drop buckle on the knob column to abut against the housing to achieve auxiliary positioning. However, the setting position of the anti-drop buckle will interfere with the weight-reducing groove on the knob cover, which increases the difficulty of mold manufacturing and has a negative impact on the molding efficiency of the anti-locking knob. Utility Model Content
[0003] The utility model provides an anti-locking knob and a door lock structure, which can make the anti-dropping buckle avoid the weight-reducing groove, thereby reducing the difficulty of mold manufacturing and improving the molding efficiency of the anti-locking knob.
[0004] The embodiments of the present invention can be implemented as follows:
[0005] An embodiment of the utility model provides an anti-locking knob, which includes:
[0006] Knob covers and knob posts;
[0007] Among them, the knob cover is provided with a cover connecting end surface, the knob column is connected to the cover connecting end surface, a weight-reducing groove is formed on the cover connecting end surface and is recessed in the direction away from the knob column, an anti-drop buckle is formed on the knob column, the anti-drop buckle is spaced apart from the cover connecting end surface, and the anti-drop buckle and the projection of the weight-reducing groove on the cover connecting end surface are staggered.
[0008] Optionally, the knob column includes a first side wall, a second side wall, a third side wall and a fourth side wall connected end to end in sequence, an extension direction of the weight reduction groove is consistent with a direction from the first side wall to the third side wall, and the anti-detachment buckle is formed on the outer side of the second side wall or the outer side of the fourth side wall.
[0009] Optionally, the wall thickness of the first side wall is D1, the wall thickness of the second side wall is D2, the wall thickness of the third side wall is D3, and the wall thickness of the fourth side wall is D4;
[0010] Among them, D2≥D1, D2≥D3, D4≥D1, D4≥D3.
[0011] Optionally, outer side surfaces of the first side wall and the third side wall are both planes.
[0012] Optionally, the knob column is provided with an accommodating hole along the axial direction.
[0013] Optionally, the side wall of the accommodating hole forms a limiting rib, and the limiting rib is located on the inner side of the first side wall and the third side wall.
[0014] Optionally, a positioning pin hole is provided through the knob column, the positioning pin hole passes through the second side wall or the fourth side wall, and the positioning pin hole is communicated with the accommodating hole.
[0015] Optionally, the knob cover is provided with a gripping portion, the gripping portion is located on the back side of the cover-connecting end surface and is arranged opposite to the weight-reducing groove.
[0016] The embodiment of the utility model further provides a door lock structure, comprising a housing and the anti-locking knob;
[0017] The shell is provided with a mounting hole, the knob cover and the knob column are both accommodated in the mounting hole, and the shell is supported between the cover connection end surface and the anti-drop buckle.
[0018] Optionally, the shell includes a shell plate and a sleeve connected to each other, the mounting hole is opened in the shell plate, the sleeve is connected to the mounting hole, the sleeve is sleeved on the knob column, the shell plate is abutted against the cover end face, and the sleeve is abutted against the anti-detachment buckle.
[0019] The beneficial effects of the anti-locking knob and door lock structure of the embodiment of the utility model include, for example:
[0020] The reverse locking knob comprises a knob cover and a knob column; wherein the knob cover is provided with a cover connection end face, the knob column is connected to the cover connection end face, a weight reduction groove is formed on the cover connection end face and is recessed in a direction away from the knob column, an anti-drop buckle is formed on the knob column, the anti-drop buckle is spaced from the cover connection end face, and the projection of the anti-drop buckle and the weight reduction groove on the cover connection end face is staggered. The reverse locking knob staggers the projections of the anti-drop buckle and the weight reduction groove on the cover connection end face, so that the anti-drop buckle and the weight reduction groove can avoid each other, thereby reducing the difficulty of mold manufacturing, thereby improving the molding efficiency of the reverse locking knob.
[0021] The door lock structure comprises an anti-locking knob, which has all the functions of an anti-locking knob. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1It is a schematic structural diagram of the anti-locking knob provided in an embodiment of the utility model at a first viewing angle;
[0024] Figure 2 It is a schematic structural diagram of the anti-locking knob provided in an embodiment of the utility model at a second viewing angle;
[0025] Figure 3 It is a structural schematic diagram of the anti-locking knob provided in the embodiment of the utility model under the third viewing angle;
[0026] Figure 4 It is a cross-sectional schematic diagram of a knob column provided in an embodiment of the utility model;
[0027] Figure 5 This is a schematic structural diagram of a door lock structure provided in an embodiment of the present utility model at a first viewing angle;
[0028] Figure 6 It is a structural schematic diagram of the door lock structure provided in an embodiment of the utility model at a second viewing angle;
[0029] Figure 7 It is a schematic structural diagram of a housing provided in an embodiment of the utility model at a first viewing angle;
[0030] Figure 8 It is a schematic structural diagram of the shell provided in the embodiment of the utility model at a second viewing angle.
[0031] Icons: 100-anti-locking knob; 110-knob cover; 111-cover connecting end face; 112-weight-reducing groove; 113-grip portion; 120-knob column; 1201-first side wall; 1202-second side wall; 1203-third side wall; 1204-fourth side wall; 121-anti-drop buckle; 122-accommodating hole; 123-limiting rib; 124-locating pin hole; 200-shell; 210-shell plate; 211-mounting hole; 220-sleeve; 1000-door lock structure. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0035] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.
[0036] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.
[0037] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0038] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.
[0040] Please refer to Figure 1-Figure 8The anti-locking knob 100 and the door lock structure 1000 provided in the embodiment of the utility model can solve the above-mentioned problem, which will be described in detail below.
[0041] refer to Figure 1 and Figure 2 , the anti-locking knob 100 includes a knob cover 110 and a knob column 120;
[0042] Among them, the knob cover 110 is provided with a cover connecting end face 111, the knob column 120 is connected to the cover connecting end face 111, a weight reducing groove 112 is formed on the cover connecting end face 111 and is recessed in a direction away from the knob column 120, an anti-detachment buckle 121 is formed on the knob column 120, the anti-detachment buckle 121 is spaced apart from the cover connecting end face 111, and the projection of the anti-detachment buckle 121 and the weight reducing groove 112 on the cover connecting end face 111 are staggered.
[0043] The anti-locking knob 100 staggers the projections of the anti-dropping buckle 121 and the weight-reducing groove 112 on the cover-connecting end surface 111 so that the anti-dropping buckle 121 and the weight-reducing groove 112 can avoid each other, thereby reducing the difficulty of mold manufacturing and improving the molding efficiency of the anti-locking knob 100.
[0044] It is worth noting that the staggered setting of the anti-disconnection buckle 121 and the weight-reducing groove 112 is mainly reflected in that their relative positions in the circumferential direction of the knob column 120 are spaced apart, that is, their projections on the cover end surface 111 are also spaced apart, and there is no overlap or contact of the projections, so as to prevent interference during the mold manufacturing process.
[0045] It should be noted that in order to improve molding efficiency, the knob cover 110 and the knob column 120 can be integrally molded by injection molding; of course, in order to facilitate the replacement of accessories and reduce maintenance costs, the knob cover 110 and the knob column 120 can also be detachably connected while ensuring the installation strength, and the specific connection methods include but are not limited to threaded connection and snap connection.
[0046] refer to Figure 2 In order to facilitate the user to apply force to drive the knob cover 110 to rotate, the knob cover 110 may be provided with a protruding gripping portion 113, which is located on the back side of the cover connection end surface 111 and is arranged opposite to the weight-reducing groove 112. Specifically, the protruding shape of the gripping portion 113 matches the shape of the concave cavity of the weight-reducing groove 112, and it can also be understood that the gripping portion 113 is a hollow structure.
[0047] During use, the user can rotate the grip portion 113 with fingers, thereby driving the knob cover 110 and the knob column 120 to rotate, and the knob column 120 drives the paddle to rotate to achieve the reverse locking operation.
[0048] refer to Figure 3The knob column 120 includes a first side wall 1201, a second side wall 1202, a third side wall 1203 and a fourth side wall 1204 which are connected end to end in sequence. The extension direction of the weight reduction groove 112 is consistent with the direction from the first side wall 1201 to the third side wall 1203. The anti-drop buckle 121 is formed on the outer side of the second side wall 1202 or the outer side of the fourth side wall 1204.
[0049] In the present embodiment, in order to save material and achieve the purpose of weight reduction, the number of weight reduction grooves 112 can be two, and the two weight reduction grooves 112 are respectively located on the side of the first side wall 1201 and the third side wall 1203 away from each other; of course, on the premise of meeting the basic weight reduction requirements, the number of weight reduction grooves 112 can also be one, and one weight reduction groove 112 can be located on the side of the first side wall 1201 away from the third side wall 1203, or on the side of the third side wall 1203 away from the first side wall 1201.
[0050] In the present embodiment, in order to ensure the anti-slip effect of the anti-slip buckle 121 and ensure the uniformity of the anti-slip holding force, the number of the anti-slip buckles 121 is also two, and the two anti-slip buckles 121 are respectively formed on the outer side of the second side wall 1202 and the outer side of the fourth side wall 1204; of course, on the premise of meeting the basic anti-slip requirements, the number of the anti-slip buckles 121 can also be one, and one anti-slip buckle 121 can be formed on the outer side of the second side wall 1202, and can also be formed on the outer side of the fourth side wall 1204.
[0051] refer to Figure 4 The wall thickness of the first side wall 1201 is D1, the wall thickness of the second side wall 1202 is D2, the wall thickness of the third side wall 1203 is D3, and the wall thickness of the fourth side wall 1204 is D4; wherein, D2≥D1, D2≥D3, D4≥D1, and D4≥D3.
[0052] The anti-locking knob 100 limits the relative relationship between the wall thicknesses of different side walls, so that the second side wall 1202 and the fourth side wall 1204 with the anti-drop buckle 121 can have a thicker wall thickness, while the first side wall 1201 and the third side wall 1203 without the anti-drop buckle 121 can have a thinner wall thickness, thereby preventing material waste while ensuring the anti-drop strength of the anti-drop buckle 121.
[0053] Specifically, the outer side surfaces of the first side wall 1201 and the third side wall 1203 are both planes, which can avoid the weight-reducing groove 112 on the one hand, and on the other hand, it is easier to ensure the relative position accuracy compared to the setting of the arc surface, and reduce the accuracy impact caused by the arc deformation. The outer side surfaces of the second side wall 1202 and the fourth side wall 1204 are both arc surfaces, and the second side wall 1202 and the fourth side wall 1204 are both thick in the middle and thin on both sides, so as to facilitate the formation of the anti-drop buckle 121 at the thickest position in the middle.
[0054] It should be noted that D2 and D4 can be understood as the wall thickness at both sides of the second side wall 1202 and the fourth side wall 1204, that is, the minimum wall thickness of the second side wall 1202 and the fourth side wall 1204. Obviously, the wall thickness in the middle position between the second side wall 1202 and the fourth side wall 1204 is the maximum wall thickness.
[0055] refer to Figure 1 The knob column 120 is provided with a receiving hole 122 along the axial direction. The receiving hole 122 can reduce the material of the knob column 120 on the one hand, and is used to accommodate the paddle on the other hand, so that when the knob column 120 rotates together with the knob cover 110, it can drive the paddle to rotate to achieve the reverse locking operation.
[0056] Furthermore, in order to improve the positioning accuracy of the plectrum and ensure the rotation stability of the plectrum, the side wall of the receiving hole 122 may be formed with a limiting rib 123, and the limiting rib 123 is located on the inner side of the first side wall 1201 and the third side wall 1203. Specifically, there are four limiting ribs 123, two of which are located on the inner wall of the first side wall 1201, and the other two are located on the inner wall of the third side wall 1203, and the two limiting ribs 123 located on the inner wall of the first side wall 1201 are respectively parallel to the other two limiting ribs 123 located on the inner wall of the third side wall 1203, so that the thickness of both sides of the receiving plectrum is balanced, thereby better installing and positioning the plectrum.
[0057] refer to Figure 1 and Figure 2 The knob column 120 is provided with a positioning pin hole 124, which passes through the second side wall 1202 or the fourth side wall 1204, and is connected to the receiving hole 122. In order to further improve the relative position stability between the paddle and the knob column 120, the positioning pin hole 124 is provided to accommodate the positioning pin, and the positioning pin can be used to press against the paddle.
[0058] In the present embodiment, the cross-sectional shape of the positioning pin hole 124 is circular, and the number of the positioning pin holes 124 is two, which respectively penetrate the second side wall 1202 and the fourth side wall 1204; of course, in other embodiments of the present invention, the cross-sectional shape of the positioning pin hole 124 can also be rectangular, triangular, prism-shaped, pentagonal, etc., and there is no limitation on the specific cross-sectional shape of the positioning pin hole 124; the number of the positioning pin hole 124 can also be one, and one positioning pin hole 124 can only penetrate the second side wall 1202, or only penetrate the fourth side wall 1204.
[0059] refer to Figure 5-Figure 8The embodiment of the utility model also provides a door lock structure 1000, including a shell 200 and an anti-locking knob 100; wherein the shell 200 is provided with a mounting hole 211, the knob cover 110 and the knob column 120 are both accommodated in the mounting hole 211, and the shell 200 is supported between the cover end surface 111 and the anti-disconnection buckle 121.
[0060] Specifically, the shell 200 includes a shell plate 210 and a sleeve 220 connected to each other. The mounting hole 211 is opened in the shell plate 210. The sleeve 220 is connected to the mounting hole 211. The sleeve 220 is sleeved on the knob column 120. The shell plate 210 is supported on the cover end surface 111, and the sleeve 220 is supported on the anti-disconnection buckle 121.
[0061] The door lock structure 1000 is provided with a sleeve 220 which is sleeved on the outer side of the knob column 120 to ensure the relative position stability of the anti-locking knob 100 and the housing 200, thereby ensuring the stability of the anti-locking operation.
[0062] In summary, the anti-lock knob 100 and the door lock structure 1000 provided by the embodiments of the present invention have at least the following advantages:
[0063] (1) The anti-locking knob 100 and the door lock structure 1000 are configured by staggering the projections of the anti-dropping buckle 121 and the weight-reducing groove 112 on the cover-joining end surface 111, so that the anti-dropping buckle 121 and the weight-reducing groove 112 can avoid each other, thereby reducing the difficulty of mold manufacturing and improving the molding efficiency of the anti-locking knob 100.
[0064] (2) The anti-locking knob 100 and the door lock structure 1000 can prevent material waste while ensuring the anti-detachment strength of the anti-detachment buckle 121 by limiting the relative relationship between the wall thicknesses of different side walls of the knob column 120.
[0065] (3) The anti-locking knob 100 and the door lock structure 1000 can avoid the weight-reducing groove 112 by setting the outer side surfaces of the first side wall 1201 and the third side wall 1203 as planes. On the other hand, the setting of the arc surface is more convenient to ensure the relative position accuracy and reduce the accuracy impact caused by the arc deformation.
[0066] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A locking knob, characterized in that: include: A knob cover (110) and a knob post (120); The knob cover (110) is provided with a cover-connecting end surface (111), the knob column (120) is connected to the cover-connecting end surface (111), a weight-reducing groove (112) is formed on the cover-connecting end surface (111) and is recessed in a direction away from the knob column (120), an anti-dropout buckle (121) is formed on the knob column (120), the anti-dropout buckle (121) is spaced apart from the cover-connecting end surface (111), and the anti-dropout buckle (121) and the projection of the weight-reducing groove (112) on the cover-connecting end surface (111) are staggered.
2. The anti-locking knob according to claim 1, characterized in that: The knob column (120) includes a first side wall (1201), a second side wall (1202), a third side wall (1203) and a fourth side wall (1204) which are connected end to end in sequence, and the extension direction of the weight reduction groove (112) is consistent with the direction from the first side wall (1201) to the third side wall (1203), and the anti-drop buckle (121) is formed on the outer side of the second side wall (1202) or the outer side of the fourth side wall (1204).
3. The anti-locking knob according to claim 2, characterized in that: The wall thickness of the first side wall (1201) is D1, the wall thickness of the second side wall (1202) is D2, the wall thickness of the third side wall (1203) is D3, and the wall thickness of the fourth side wall (1204) is D4; Among them, D2≥D1, D2≥D3, D4≥D1, D4≥D3.
4. The anti-locking knob according to claim 2, characterized in that: The outer side surfaces of the first side wall (1201) and the third side wall (1203) are both planes.
5. The anti-locking knob according to claim 2, characterized in that: The knob column (120) is provided with a receiving hole (122) along the axial direction.
6. The anti-locking knob according to claim 5, characterized in that: The side wall of the accommodating hole (122) is formed with a limiting rib (123), and the limiting rib (123) is located on the inner side of the first side wall (1201) and the third side wall (1203).
7. The anti-locking knob according to claim 5, characterized in that: The knob column (120) is provided with a positioning pin hole (124) therethrough, the positioning pin hole (124) passes through the second side wall (1202) or the fourth side wall (1204), and the positioning pin hole (124) is communicated with the accommodating hole (122).
8. The anti-locking knob according to any one of claims 1 to 7, characterized in that: The knob cover (110) is provided with a gripping portion (113) protruding therefrom. The gripping portion (113) is located on the back side of the cover-connecting end surface (111) and is arranged opposite to the weight-reducing groove (112).
9. A door lock structure, characterized in that: include: A housing (200) and an anti-locking knob as claimed in any one of claims 1 to 8; The housing (200) is provided with a mounting hole (211), the knob cover (110) and the knob column (120) are both accommodated in the mounting hole (211), and the housing (200) is supported between the cover connection end surface (111) and the anti-drop buckle (121).
10. The door lock structure according to claim 9, characterized in that: The shell (200) comprises a shell plate (210) and a sleeve (220) connected to each other, the mounting hole (211) is opened in the shell plate (210), the sleeve (220) is communicated with the mounting hole (211), the sleeve (220) is sleeved on the knob column (120), the shell plate (210) is abutted against the cover end surface (111), and the sleeve (220) is abutted against the anti-drop buckle (121).