Bolt kit for electronic scale disassembly prevention
By designing a bolt kit for electronic scales, the coupling of limit slots and limit blocks is used to achieve firm fixation and convenient disassembly of bolts, and the problem of tampering that the fastening method in the prior art affects the electronic scales is solved.
Patent Information
- Application Number
- CN202421825556.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The fastening method of existing electronic scales uses self-tapping fastening bolts, which affects the tightening effect after multiple disassembly and assembly, and can avoid detection of gravity sensing devices, making it difficult to prevent illegal disassembly.
A bolt kit for electronic scales is designed, including a bolt body and a nut body. The threaded rod of the bolt body is automatically snapped under gravity through the coordination of a limiting groove and a limiting block, thereby fixing the bolt body and the nut body to prevent loosening.
It realizes firm fixation of bolts to prevent illegal disassembly of electronic scales, and is convenient to perform when disassembly is needed, ensuring the repeated use and tightening effect of bolts.
Smart Images
Figure CN222894483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolt kits, and in particular to a bolt kit for preventing electronic scales from being dismantled. Background Art
[0002] Electronic scales are a kind of measuring instrument widely used in various fields. Their weighing accuracy is the basis for maintaining fair trade. It is illegal to modify electronic scales privately. Modifying electronic scales inevitably requires disassembling the electronic scales. Conventional fastening methods generally use self-tapping fastening bolts. Due to the characteristics of self-tapping fastening bolts, multiple disassembly and assembly will affect the fastening effect.
[0003] In order to be able to detect the position status of the electronic scale in real time, a gravity sensing device will be installed in the electronic scale. When the electronic scale is turned over, it can alarm in time, which is a method to prevent illegal disassembly. However, the disassembly and assembly of the self-tapping fastening bolts can be carried out without turning over the electronic scale, which can avoid detection by the gravity sensing device. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the existing electronic scale is generally fastened by self-tapping fastening bolts, which not only affects the fastening effect due to repeated disassembly and assembly, but also avoids detection by a gravity sensing device. In order to overcome the above defects of the prior art, the utility model provides a bolt kit for electronic scale anti-dismantling.
[0005] The utility model provides a bolt kit for electronic scale anti-disassembly, comprising a bolt body and a nut body; the bolt body comprises a bolt head and a threaded rod, the bolt head is integrally connected to one end of the threaded rod, and the other end of the threaded rod is provided with a limit groove; the nut body is provided with a threaded cavity with an opening, the threaded rod is threadedly connected in the threaded cavity through the opening, the cavity bottom of the threaded cavity is provided with a mounting groove connected to the threaded cavity, a limit block matching the limit groove is installed in the mounting groove, a first anti-rotation structure for preventing mutual rotation is provided between the limit groove and the limit block, the limit block is axially slidably arranged in the mounting groove, and a second anti-rotation structure for preventing mutual rotation is provided between the limit block and the mounting groove; when the limit block abuts against the groove bottom of the mounting groove, the limit block falls out of the limit groove.
[0006] Compared with the prior art, the bolt kit for electronic scale anti-disassembly of the present application has the following advantages: the limit block is slidably arranged in the installation groove along the axial direction. When the bolt body is set downward, the limit block is clamped in the limit groove of the threaded rod under the action of gravity, so that the bolt body and the nut body are firmly fixed to each other and will not loosen. If disassembly and maintenance are required, the bolt body and the nut body are turned over to facilitate detection by the gravity sensing device, and the limit block is again clamped in the limit groove under the action of gravity. The limit block is disengaged and abutted against the bottom of the installation groove. At this time, the bolt body and the nut body can be separated and disassembled, which not only prevents disassembly but also facilitates maintenance, and ensures that there is no destructive operation when disassembling and assembling the bolts. The tightened bolts are subjected to less force during use and are not easily damaged, so they can be used repeatedly.
[0007] In a possible implementation, the limit block includes a slider and a boss, the boss is integrally connected to the slider, the boss is a polygonal column, the limit groove is for the boss to be inserted into, and the slider is slidably disposed in the installation groove.
[0008] Compared with the prior art, the above technical solution can be adopted, that is, the protruding column is the above-mentioned first anti-rotation structure, and by setting the protruding column as a polygonal column, it is possible to increase the limiting effect when the protruding column is engaged with the limiting groove, and prevent the protruding column engaged in the limiting groove from rotating, thereby achieving a better anti-disassembly effect.
[0009] In a possible implementation manner, a guide arc is provided at one end of the protrusion away from the slider.
[0010] Compared with the prior art, the above technical solution can enable the boss to be more smoothly clamped in the limiting groove through the guide arc provided at one end of the boss away from the sliding block.
[0011] In a possible implementation manner, the convex column is a hexagonal column.
[0012] Compared with the prior art, the above technical solution can increase the contact area of the protruding column when it contacts the limiting groove by setting the protruding column as a hexagonal prism, so that the limiting effect is better under the limiting of the six edges.
[0013] In a possible implementation manner, the sliding block is a polygonal block, and the mounting groove is for the sliding block to be matched and inserted.
[0014] Compared with the prior art, the above technical solution enables the slider to be the above second anti-rotation structure, and the shape of the slider is arranged to be consistent with the installation groove, thereby further limiting the rotation of the limit block.
[0015] In a possible implementation manner, the sliding block is a quadrilateral block.
[0016] Compared with the prior art, the above technical solution can, by setting the slider as a quadrilateral, on the one hand facilitate the sliding of the slider in the installation groove through the regular shape, and on the other hand, it is also to improve the limiting effect, thereby avoiding rotation between the bolt body and the nut body, thereby affecting the fastening of the electronic scale.
[0017] In a possible implementation manner, an annular step is provided at the connection between the threaded cavity and the mounting groove, and the annular step is used for the sliding block to abut against.
[0018] Compared with the prior art, the above technical solution can limit the axial sliding distance of the slider by providing an annular step at the connection between the threaded cavity and the mounting groove. Firstly, it can make the threaded rod and the threaded cavity of sufficient length fit each other more closely when threadedly connected, and secondly, it can ensure that the size of the boss and the limit groove fits better.
[0019] In a possible implementation manner, a driving groove is provided on the bolt head.
[0020] Compared with the prior art, the above technical solution can be used to disassemble the bolt body and the nut body through the driving groove provided on the bolt head by using any tool matching the driving groove, which makes disassembly convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of the bolt kit for electronic scale anti-disassembly of the utility model;
[0022] Figure 2 It is a structural schematic diagram of the bolt body;
[0023] Figure 3 It is a structural schematic diagram of the nut body;
[0024] Figure 4 It is a structural schematic diagram of the limit block;
[0025] Figure 5 The utility model is used to illustrate the use of the bolt kit for electronic scale anti-disassembly Figure 1 ;
[0026] Figure 6 The utility model is used to illustrate the use of the bolt kit for electronic scale anti-disassembly Figure 2 ;
[0027] Description of reference numerals:
[0028] 1. Bolt body; 11. Bolt head; 111. Driving groove; 12. Threaded rod; 121. Limiting groove; 2. Nut body; 21. Threaded cavity; 22. Mounting groove; 23. Limiting block; 231. Sliding block; 232. Boss; 2321. Guide arc; 24. Annular step. DETAILED DESCRIPTION
[0029] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0030] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0031] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0032] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0033] See also Figures 1 to 6 The embodiment of the present application discloses a bolt kit for electronic scale anti-disassembly, comprising a bolt body 1 and a nut body 2; the bolt body 1 comprises a bolt head 11 and a threaded rod 12, the bolt head 11 is integrally connected to one end of the threaded rod 12, and a limiting groove 121 is provided at the other end of the threaded rod 12; a threaded cavity 21 with an opening is provided on the nut body 2, the threaded rod 12 is threadedly connected in the threaded cavity 21 through the opening, a mounting groove 22 communicating with the threaded cavity 21 is provided at the bottom of the threaded cavity 21, a limiting block 23 matched with the limiting groove 121 is installed in the mounting groove 22, a first anti-rotation structure for preventing mutual rotation is provided between the limiting groove 121 and the limiting block 23, the limiting block 23 is axially slidably arranged in the mounting groove 22, and a second anti-rotation structure for preventing mutual rotation is provided between the limiting block 23 and the mounting groove 22 cavity; when the limiting block 23 abuts against the groove bottom of the mounting groove 22, the limiting block 23 comes out of the limiting groove 121.
[0034] Specifically, in order to improve the anti-disassembly effect, the limit block 23 includes a slider 231 and a boss 232. The boss 232 is integrally connected to the slider 231. The boss 232 is a polygonal column. The slider 231 is a polygonal block. The boss 232 is the above-mentioned first anti-rotation structure. The limit groove 121 is for the boss 232 to cooperate and insert. The slider 231 is the above-mentioned second anti-rotation structure. The slider 231 is slidably set in the installation groove 22.
[0035] As can be known from the above, when tightening the bolt kit for the electronic scale, the threaded rod 12 of the bolt body 1 is inserted into the threaded cavity 21 of the nut body 2 from top to bottom. At this time, the limit block 23 in the mounting groove 22 is against the groove bottom of the mounting groove 22. After the bolt kit is tightened, the electronic scale is turned over, that is, the bolt body 1 is set downward, so that the boss 232 of the limit block 23 is stuck in the limit groove 121. Then, due to the mutual engagement of the limit block 23 and the limit groove 121, the bolt body 1 cannot be twisted, thereby preventing the disassembly of the electronic scale. If disassembly is required, it only needs to be turned over again, and the boss 232 of the limit block 23 will be disengaged from the limit groove 121, so that the bolt body 1 and the nut body 2 can be separated and disassembled, which not only prevents disassembly, but also facilitates maintenance, and ensures that there is no destructive operation when disassembling and assembling the bolts. The tightened bolts are subjected to less force during use, are not easily damaged, and can be repeatedly used.
[0036] In this embodiment, a guide arc 2321 is provided at one end of the boss 232 away from the slider 231 , so that the boss 232 can be more smoothly clamped in the limiting groove 121 through the guide arc 2321 provided at one end of the boss 232 away from the slider 231 .
[0037] In this embodiment, the boss 232 is a hexagonal prism. Thus, by setting the boss 232 as a hexagonal prism, the contact area of the boss 232 is increased when it contacts the limiting groove 121, and the limiting effect is better under the limitation of the six edges.
[0038] In this embodiment, the slider 231 is a quadrilateral block. Therefore, by setting the slider 231 as a quadrilateral, on the one hand, the regular shape facilitates the sliding of the slider 231 in the threaded cavity 21, and on the other hand, it is also to improve the limiting effect, thereby avoiding rotation between the bolt body 1 and the nut body 2, thereby affecting the fastening of the electronic scale.
[0039] In this embodiment, an annular step 24 is provided at the connection between the threaded cavity 21 and the mounting groove 22 , and the annular step 24 is used for the slider 231 to abut against.
[0040] Specifically, in order to facilitate the disassembly of the bolt body 1 and the nut body 2 , a driving groove 111 is provided on the bolt head 11 .
[0041] An annular step 24 is provided to limit the axial sliding distance of the slider 231. Firstly, the threaded rod 12 and the threaded cavity 21 of sufficient length are more closely connected to each other when being threadedly connected. Secondly, the size of the boss 232 and the limiting groove 121 are more closely matched. Under the action of the driving groove 111 provided on the bolt head 11, the bolt body 1 and the nut body 2 can be disassembled by any tool matching the driving groove 111, and the disassembly is convenient.
[0042] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.
[0043] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0044] The above is only a specific implementation of the present application, but the protection scope of the present application 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 in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A bolt kit for electronic scale anti-disassembly, characterized in that: The invention comprises a bolt body (1) and a nut body (2); the bolt body (1) comprises a bolt head (11) and a threaded rod (12); the bolt head (11) is integrally connected to one end of the threaded rod (12); the other end of the threaded rod (12) is provided with a limiting groove (121); the nut body (2) is provided with a threaded cavity (21) with an opening; the threaded rod (12) is threadedly connected to the threaded cavity (21) through the opening; the bottom of the threaded cavity (21) is provided with a mounting groove (22) communicating with the threaded cavity (21); A limit block (23) matched with the limit groove (121) is installed in the installation groove (22); a first anti-rotation structure for preventing mutual rotation is provided between the limit groove (121) and the limit block (23); the limit block (23) is axially slidably arranged in the installation groove (22); a second anti-rotation structure for preventing mutual rotation is provided between the limit block (23) and the installation groove (22); when the limit block (23) abuts against the bottom of the installation groove (22), the limit block (23) escapes from the limit groove (121).
2. The bolt kit for electronic scale anti-disassembly according to claim 1, characterized in that: The limiting block (23) comprises a slider (231) and a boss (232); the boss (232) is integrally connected to the slider (231); the boss (232) is a polygonal column; the limiting groove (121) is for the boss (232) to be inserted in cooperation; and the slider (231) is slidably arranged in the mounting groove (22).
3. The bolt kit for electronic scale anti-disassembly according to claim 2, characterized in that: A guide arc (2321) is provided at one end of the protruding column (232) away from the sliding block (231).
4. The bolt kit for electronic scale anti-disassembly according to claim 2, characterized in that: The convex column (232) is a hexagonal column.
5. The bolt kit for electronic scale anti-disassembly according to claim 2, characterized in that: The sliding block (231) is a polygonal block, and the mounting groove (22) is for the sliding block (231) to be matched and inserted.
6. The bolt kit for electronic scale anti-disassembly according to claim 5, characterized in that: The sliding block (231) is a quadrilateral block.
7. The bolt kit for electronic scale anti-disassembly according to claim 2, characterized in that: An annular step (24) is provided at the connection between the threaded cavity (21) and the mounting groove (22), and the annular step (24) is used for the sliding block (231) to abut against.
8. The bolt kit for electronic scale anti-disassembly according to claim 1, characterized in that: The bolt head (11) is provided with a driving groove (111).