Hidden locking structure

Abstract

The utility model relates to the field of machinery, in particular to a hidden locking structure, which comprises a first main body, a second main body and a locking mechanism, the end face, close to the first positioning hole, of the second body is provided with a groove, and the end face, away from the first positioning hole, of the second body is provided with a second positioning hole penetrating to the groove. One end of the fastener sequentially penetrates through the second positioning hole and the groove and then is locked with the first positioning hole, and the other end of the fastener is clamped with the section, away from the first positioning hole, of the second main body. The hidden type locking structure is simple, easy to operate, high in assembling efficiency and particularly suitable for assembling two main bodies needing to be disassembled and assembled repeatedly.

Description

A concealed locking structure Technical Field

[0001] This utility model relates to the field of machinery, and in particular to a concealed locking structure. Background Technology

[0002] In many cases, mechanical parts need to be fastened with bolts. For bolt fastening structures, please refer to the Chinese utility model patent with application number CN201520365128.8 entitled "A Bolt Fastening Structure". However, in some cases, parts are frequently assembled and disassembled, and bolts also need to be assembled and disassembled frequently. Operators need to classify and manage the disassembled bolts, etc. Bolts are easy to lose after disassembly, and during assembly, it is necessary to find the disassembled bolts and align them with the holes to fasten them, which is very inconvenient. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a concealed locking structure that is easy to operate and has high assembly and disassembly efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a concealed locking structure, comprising:

[0005] The first main body is provided with a first positioning hole;

[0006] The second body has a groove on the end face near the first positioning hole and a second positioning hole that extends through the groove on the end face away from the first positioning hole.

[0007] The fastener has one end that passes through the second positioning hole and the groove in sequence and is then locked to the first positioning hole, while the other end is engaged with the section of the second body away from the first positioning hole.

[0008] Furthermore, the fastener includes a smooth rod and a threaded rod connected to each other. The smooth rod is slidably engaged with the second positioning hole, the first positioning hole is a threaded hole, and the threaded rod is screwed into the first positioning hole.

[0009] Furthermore, the sum of the axial lengths of the smooth rod and the threaded rod is greater than the sum of the depth of the groove and the length of the second positioning hole.

[0010] Furthermore, the second positioning hole is a threaded hole, and the threaded rod is threadedly engaged with the second positioning hole.

[0011] Furthermore, the depth of the groove is greater than the axial length of the threaded rod.

[0012] Furthermore, the inner diameter of the groove is larger than the diameter of the threaded rod.

[0013] Furthermore, the axial length of the second positioning hole is less than the axial length of the threaded rod.

[0014] Furthermore, the inner diameter of the second positioning hole is larger than the diameter of the optical rod.

[0015] Furthermore, the end of the smooth rod away from the threaded rod is provided with a hexagonal head, which engages with the section of the second body away from the first positioning hole.

[0016] Furthermore, the cross-section of the groove perpendicular to the axis of the second positioning hole is circular.

[0017] The beneficial effects of this utility model are as follows: A concealed locking structure is provided, in which a first body and a second body are locked together by fasteners. A first positioning hole for locking is designed on the first body, and a groove for receiving is opened on the surface of the second body that contacts the first body. A second positioning hole penetrating into the groove is opened on the side of the second body away from the first body. In use, one end of the fastener is first passed through the second positioning hole and its end is received in the groove. Then, the assembly position of the first body and the second body is adjusted so that the first positioning hole and the groove are aligned. Then, one end of the fastener is locked to the first positioning hole, while the other end of the fastener remains outside the second positioning hole and engages with the section of the second body away from the first positioning hole, thus completing the assembly. When disassembling, there is no need to remove the fastener; simply release the connection between one end of the fastener and the first positioning hole, and receive the other end of the fastener in the groove. The concealed locking structure provided by this utility model is simple and easy to operate, with high assembly efficiency, and is particularly suitable for assembling two bodies that need to be repeatedly disassembled and reassembled. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the concealed locking structure;

[0019] Figure 2 is a cross-sectional view of the concealed locking structure;

[0020] Figure 3 is a cross-sectional view of the fastener;

[0021] Figure 4 is another cross-sectional view of the fastener;

[0022] Figure 5 shows another cross-sectional view of the fastener;

[0023] Label Explanation:

[0024] 1. First body; 11. First positioning hole; 2. Second body; 21. Groove; 22. Second positioning hole; 3. Fastener; 31. Smooth rod; 32. Threaded rod; 33. Hexagonal head. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figures 1 to 5. A concealed locking structure of this utility model includes:

[0027] The first main body 1 is provided with a first positioning hole 11;

[0028] The second body 2 has a groove 21 on the end face near the first positioning hole 11 and a second positioning hole 22 that extends through the groove 21 on the end face away from the first positioning hole 11.

[0029] The fastener 3 has one end that passes through the second positioning hole 22 and the groove 21 in sequence and is locked to the first positioning hole 11, and the other end that is engaged with the section of the second body 2 away from the first positioning hole 11.

[0030] As can be seen from the above description, the beneficial effects of this utility model are as follows: A concealed locking structure, in which the first body 1 and the second body 2 are locked together by a fastener 3. A first positioning hole 11 for locking is designed on the first body 1, and a groove 21 for receiving is opened on the surface of the second body 2 that contacts the first body 1. A second positioning hole 22 that penetrates the groove 21 is opened on the side of the second body 2 away from the first body 1. In use, one end of the fastener 3 is first passed through the second positioning hole 22 and its end is received in the groove 21. Then, the assembly position of the first body 1 and the second body 2 is adjusted so that the first positioning hole 11 and the groove 21 are aligned. Then, one end of the fastener 3 is locked to the first positioning hole 11, and the other end of the fastener 3 remains outside the second positioning hole 22 and is engaged with the section of the second body 2 away from the first positioning hole 11, thus completing the assembly. When canceling the assembly, it is not necessary to remove the fastener 3. It is only necessary to release the assembly between one end of the fastener 3 and the first positioning hole 11 and receive one end of the fastener 3 in the groove 21. The concealed locking structure provided by this utility model is simple to operate, has high assembly efficiency, and is particularly suitable for assembling two main bodies that need to be repeatedly disassembled and reassembled.

[0031] In an optional embodiment, the fastener 3 includes a smooth rod 31 and a threaded rod 32 connected to each other. The smooth rod 31 is slidably engaged with the second positioning hole 22. The first positioning hole 11 is a threaded hole, and the threaded rod 32 is screwed into the first positioning hole 11.

[0032] As can be seen from the above description, the smooth rod 31 can slide freely in the second positioning hole 22, which serves as a guide and limit for it. The threaded rod 32 is used to be screwed and locked with the first positioning hole 11 to assemble and fix the first body 1 and the second body 2.

[0033] In an optional embodiment, the sum of the axial lengths of the smooth rod 31 and the threaded rod 32 is greater than the sum of the depth of the groove 21 and the length of the second positioning hole 22.

[0034] As can be seen from the above description, this design ensures that the threaded rod 32 has sufficient length to be assembled with the first positioning hole 11.

[0035] In an optional embodiment, the second positioning hole 22 is a screw hole, and the threaded rod 32 is threadedly engaged with the second positioning hole 22.

[0036] As can be seen from the above description, designing the second positioning hole 22 as a screw hole not only makes it convenient for the threaded rod 32 to be screwed in and stored in the groove 21, but also prevents the threaded rod 32 from coming out of it.

[0037] In an alternative embodiment, the depth of the groove 21 is greater than the axial length of the threaded rod 32.

[0038] As can be seen from the above description, when the first body 1 and the second body 2 need to be assembled, since the depth of the groove 21 is greater than the axial length of the threaded rod 32, the threaded rod 32 can be hidden in the groove 21, thus avoiding the collision between the threaded rod 32 and the second body 2 when the two bodies are close together.

[0039] In an alternative embodiment, the inner diameter of the groove 21 is larger than the diameter of the threaded rod 32.

[0040] In an alternative embodiment, the axial length of the second positioning hole 22 is less than the axial length of the threaded rod 32.

[0041] In an optional embodiment, the inner diameter of the second positioning hole 22 is larger than the diameter of the optical rod 31.

[0042] In an optional embodiment, the end of the smooth rod 31 away from the threaded rod 32 is provided with a hexagonal head 33, which engages with the section of the second body 2 away from the first positioning hole 11.

[0043] As can be seen from the above description, the hexagonal head 33 is engaged with the section of the second body 2 away from the first positioning hole 11 to prevent the first body 1 and the second body 2 from becoming loose after assembly.

[0044] In an optional embodiment, the cross-section of the groove 21 perpendicular to the axis of the second positioning hole 22 is circular.

[0045] Please refer to Figures 1 to 5. Embodiment 1 of this utility model is: a concealed locking structure, comprising:

[0046] The first main body 1 is provided with a first positioning hole 11;

[0047] The second body 2 has a groove 21 on the end face near the first positioning hole 11 and a second positioning hole 22 that extends through the groove 21 on the end face away from the first positioning hole 11.

[0048] The fastener 3 has one end that passes through the second positioning hole 22 and the groove 21 in sequence and is locked to the first positioning hole 11, and the other end that is engaged with the section of the second body 2 away from the first positioning hole 11.

[0049] Fastener 3 includes a smooth rod 31 and a threaded rod 32 connected to each other. The smooth rod 31 is slidably engaged with the second positioning hole 22. The first positioning hole 11 is a threaded hole, and the threaded rod 32 is threaded into the first positioning hole 11. The sum of the axial lengths of the smooth rod 31 and the threaded rod 32 is greater than the sum of the depth of the groove 21 and the length of the second positioning hole 22. The second positioning hole 22 is a threaded hole, and the threaded rod 32 is threaded into the second positioning hole 22. The depth of the groove 21 is greater than the axial length of the threaded rod 32. The inner diameter of the groove 21 is greater than the diameter of the threaded rod 32. The axial length of the second positioning hole 22 is less than the axial length of the threaded rod 32. The inner diameter of the second positioning hole 22 is greater than the diameter of the smooth rod 31. The end of the smooth rod 31 away from the threaded rod 32 is provided with a hexagonal head 33, which engages with the section of the second body 2 away from the first positioning hole 11. The cross-section of the groove 21 perpendicular to the axis of the second positioning hole 22 is circular.

[0050] In summary, the concealed locking structure of this utility model involves locking the first and second bodies together using fasteners. A first positioning hole for locking is designed on the first body, and a recess for storage is formed on the surface of the second body that contacts the first body. A second positioning hole, penetrating the recess, is formed on the side of the second body away from the first body. In use, one end of the fastener is first passed through the second positioning hole and its end is stored in the recess. Then, the assembly position of the first and second bodies is adjusted so that the first positioning hole aligns with the recess. Next, one end of the fastener is locked to the first positioning hole, while the other end remains outside the second positioning hole and engages with the section of the second body away from the first positioning hole, completing the assembly. To disassemble, it is not necessary to remove the fastener; simply release the connection between one end of the fastener and the first positioning hole, and store the other end of the fastener in the recess. The concealed locking structure provided by this utility model is simple to operate, has high assembly efficiency, and is particularly suitable for assembling two bodies that require repeated disassembly and reassembly.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A concealed locking structure, characterized in that, include: The first body has a first positioning hole; the second body has a groove on the end face near the first positioning hole and a second positioning hole that extends through the groove on the end face away from the first positioning hole; the fastener has one end that passes through the second positioning hole and the groove in sequence and is locked to the first positioning hole, and the other end that is engaged with the section of the second body away from the first positioning hole.

2. The concealed locking structure according to claim 1, characterized in that, The fastener includes a smooth rod and a threaded rod connected to each other. The smooth rod slides into a second positioning hole, and the first positioning hole is a threaded hole. The threaded rod is screwed into the first positioning hole.

3. The concealed locking structure according to claim 2, characterized in that, The sum of the axial lengths of the smooth rod and the threaded rod is greater than the sum of the depth of the groove and the length of the second positioning hole.

4. The concealed locking structure according to claim 2, characterized in that, The second positioning hole is a screw hole, and the threaded rod is threaded into the second positioning hole.

5. The concealed locking structure according to claim 2, characterized in that, The depth of the groove is greater than the axial length of the threaded rod.

6. The concealed locking structure according to claim 2, characterized in that, The inner diameter of the groove is larger than the diameter of the threaded rod.

7. The concealed locking structure according to claim 2, characterized in that, The axial length of the second positioning hole is less than the axial length of the threaded rod.

8. The concealed locking structure according to claim 2, characterized in that, The inner diameter of the second positioning hole is larger than the diameter of the guide rod.

9. The concealed locking structure according to claim 2, characterized in that, The end of the smooth rod away from the threaded rod is provided with a hexagonal head, which engages with the section of the second body away from the first positioning hole.

10. The concealed locking structure according to claim 1, characterized in that, The cross-section of the groove perpendicular to the axis of the second positioning hole is circular.

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