Anti-back screw structure

Abstract

The utility model provides an anti-retreating screw structure, relates to the technical field of screws, and solves the problems that a fastening screw is easy to retreat, namely a thread is loosened and separated from an original position, so that the fixed connection effect of the fastening screw is weakened, and the connection tightness degree is reduced. An anti-retreating screw structure comprises a screw rod, and a matching base is arranged on the upper portion of the outer portion of the screw rod in a clamped mode. The screw rod further comprises a screw rod head, the shape of the screw rod is designed to be of a round head structure, and the screw rod head is integrally arranged at the top of the screw rod. And the shape of the matching base is designed to be of a circular base structure, and the matching base is integrally arranged at the top of the screw rod. Through the arrangement of the matching seat, the phenomenon of unscrewing of the screw can be effectively reduced, the anti-skid protrusions at the bottom make contact with the surface of a machine part, preliminary skid resistance can be achieved by means of friction force when vibration is generated during equipment operation or daily use, and the situation of connection looseness caused by vibration is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of screws, and more specifically, relates to an anti-backward screw structure. Background Art

[0002] A screw is a tool that uses the circular rotation and friction of an object's inclined surface to gradually tighten objects and workpieces. In actual use, set screws often cause problems due to various factors. The vibration factor is very prominent, including the continuous vibration of mechanical equipment operation and the irregular vibration of transportation bumps, which will affect the normal state of the screws. In addition, other factors such as temperature, humidity, and slight displacement of components should not be underestimated. Under the combined effect of these factors, set screws are prone to thread backing, that is, the threads loosen and come out of place, which will weaken their fixed connection effect and reduce the tightness of the connection. As the connection effect continues to weaken, there may be a serious situation where the screws gradually loosen or even completely disconnect, which will greatly hinder the normal operation and use of the equipment or structure, and in serious cases, it will cause safety hazards and other consequences. Utility Model Content

[0003] The embodiments of the present disclosure relate to an anti-backout screw structure to solve the problem proposed in the above-mentioned background technology that the continuous vibration of mechanical equipment during operation and the irregular vibration caused by transportation bumps will affect the normal state of the screws. In addition, other factors such as temperature, humidity, and slight displacement of components should not be underestimated. Under the combined effect of these factors, the set screws are prone to backout, that is, the threads are loose and out of place, which will weaken their fixed connection effect and reduce the tightness of the connection.

[0004] The purpose and effect of the anti-backflow screw structure of the utility model are achieved by the following specific technical means:

[0005] In a first aspect of the present disclosure, an anti-backward screw structure is provided, comprising: a screw rod, a mating seat being provided on the upper outer portion of the screw rod; the screw rod further comprising: a screw head, the screw head being shaped like a circular head structure, and the screw head being integrally provided at the top of the screw rod; a mating base, the mating base being shaped like a circular seat structure, and the mating base being integrally provided at the top of the screw rod.

[0006] As a preferred solution of the present invention, the screw rod also includes: a matching block, the matching block is shaped like a square block structure, and the number of the matching blocks is set to four, and the matching block is cross-shaped and integrally arranged on the outside of the matching base.

[0007] As a preferred solution of the present invention, the screw rod further includes: a connecting groove, the connecting groove is designed in a hexagonal structure, and the connecting groove is opened at the top of the screw rod head.

[0008] As a preferred solution of the present invention, the mating seat also includes: a connecting head, the number of which is set to two, and the connecting heads are symmetrically and integrally arranged on both sides of the mating seat; a connecting hole, the shape of the connecting hole is a circular hole structure design, and the connecting hole is opened at the top of the connecting head.

[0009] As an optimal solution of the present invention, the mating seat also includes: a mating groove, the mating groove is shaped like a circular groove structure design, and the mating groove is opened in the middle of the mating seat; a connecting card slot, the connecting card slot is shaped like a rectangular groove structure design, and the number of connecting card slots is set to four, and the connecting card slot is opened in a cross shape on the inner side of the mating groove; the connecting card slot and the mating card block are consistent with each other.

[0010] As a preferred solution of the present invention, the mating seat further includes: an anti-slip protrusion, which is integrally arranged on the bottom of the mating seat; and a connecting pin, which is slidably arranged inside the connecting hole.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The setting of the matching seat can effectively reduce the phenomenon of screw thread stripping. The anti-skid protrusions at the bottom are in contact with the surface of the machine part. When the equipment is running or generating vibrations during daily use, it can initially prevent slipping by friction, thereby reducing the loose connection caused by vibration. However, relying solely on the snap-fit ​​and anti-skid measures is not enough to ensure that the screw rod is absolutely stable. Further fixing operations are required, that is, the connecting nail is passed through the connecting hole and tightly connected to the fixed machine part to complete the secondary fixation. During this process, the connecting nail and the matching seat are closely matched to reinforce the structure, reducing the possibility of the screw rod rotating. The rotation of the screw rod can easily cause serious problems such as thread stripping. Through the synergistic effect of the above-mentioned snap-fit, anti-skid, secondary fixation and other multiple processes, the screw thread stripping can be effectively prevented, and the machine part can be firmly and stably fixed, ensuring the normal operation of the equipment and avoiding related potential safety hazards and equipment failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall axial side three-dimensional structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the screw rod structure of the present utility model.

[0015] Figure 3 It is a schematic diagram of the matching seat structure of the utility model.

[0016] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0017] 1. Screw rod; 101. Screw head; 102. Matching base; 103. Matching block; 104. Connecting slot; 2. Matching seat; 201. Connecting head; 202. Connecting hole; 203. Matching slot; 204. Connecting slot; 205. Anti-slip protrusion; 206. Connecting nail. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0019] Example: As shown in the attached Figure 1 To the attached Figure 3 As shown:

[0020] The utility model provides an anti-backward screw structure, comprising: a screw rod 1, wherein a matching seat 2 is provided on the upper portion of the outer portion of the screw rod 1; the screw rod 1 further comprises: a screw head 101, wherein the shape of the screw head 101 is a circular head structure design, and the screw head 101 is integrally arranged on the top of the screw rod 1; a matching base 102, wherein the shape of the matching base 102 is a circular seat structure design, and the matching base 102 is integrally arranged on the top of the screw rod 1; a matching clamping block 103, wherein the shape of the matching clamping block 103 is a square block structure design, and the number of the matching clamping blocks 103 is set to four, and the matching clamping block 103 is cross-shaped and integrally arranged on the outer portion of the matching base 102; a connecting groove 104, wherein the shape of the connecting groove 104 is a hexagonal groove structure design, and the connecting groove 104 is opened on the top of the screw head 101.

[0021] Among them, the mating seat 2 also includes: a connecting head 201, the number of connecting heads 201 is set to two, and the connecting heads 201 are symmetrically arranged on both sides of the mating seat 2; a connecting hole 202, the shape of the connecting hole 202 is a circular hole structure design, and the connecting hole 202 is opened at the top of the connecting head 201; a mating groove 203, the shape of the mating groove 203 is a circular groove structure design, and the mating groove 203 is opened in the middle of the mating seat 2; a connecting card slot 204, the shape of the connecting card slot 204 is a rectangular groove structure design, and the number of the connecting card slots 204 is set to four, and the connecting card slot 204 is cross-shaped and opened on the inner side of the mating groove 203; the connecting card slot 204 is consistent with the mating card block 103; the anti-slip protrusion 205, the anti-slip protrusion 205 is integrated at the bottom of the mating seat 2; the connecting nail 206, the connecting nail 206 is slidably set inside the connecting hole 202.

[0022] The specific usage and function of this embodiment: During the use of the screw, the screw rod 1 is rotated by the hexagonal wrench through the connecting slot 104 to fix the screw rod 1 to the fixed component.

[0023] In the process of fixing the screw rod 1 to the machine part, the screw rod 1 passes through the mating seat 2, so that the connecting groove 204 on the inner side of the mating seat 2 is engaged with the mating block 103, and the anti-slip protrusion 205 at the bottom of the mating seat 2 will contact the fixed machine part to perform preliminary anti-slip and reduce loosening caused by vibration. Then, the connecting nail 206 is passed through the connecting hole 202 to fix it to the fixed machine part for a second time, so that the connecting nail 206 and the mating seat 2 are engaged, further reducing the rotation of the screw rod 1 during fixation, thereby preventing the screw from backing out.

Claims

1. An anti-retraction screw structure, characterized in that: include: A screw rod (1) is provided with a matching seat (2) on the upper portion of the screw rod (1); the screw rod (1) further comprises: a screw head (101), the screw head (101) is designed in the shape of a circular head structure, and the screw head (101) is integrally provided on the top of the screw rod (1); and a matching base (102), the matching base (102) is designed in the shape of a circular seat structure, and the matching base (102) is integrally provided on the top of the screw rod (1).

2. The anti-retraction screw structure according to claim 1, characterized in that: The screw rod (1) further comprises: a matching block (103), the matching block (103) is shaped like a square block structure, and the number of the matching blocks (103) is set to four, and the matching blocks (103) are arranged in a cross-shaped integral manner outside the matching base (102).

3. The anti-retraction screw structure according to claim 2, characterized in that: The screw rod (1) further comprises: a connecting groove (104); the connecting groove (104) is in the shape of a hexagonal groove structure, and the connecting groove (104) is opened at the top of the screw rod head (101).

4. The anti-retraction screw structure according to claim 1, characterized in that: The matching seat (2) further comprises: a connecting head (201), the number of which is set to two, and the connecting heads (201) are symmetrically arranged in an integrated manner on both sides of the matching seat (2); a connecting hole (202), the shape of the connecting hole (202) is designed as a circular hole structure, and the connecting hole (202) is opened at the top of the connecting head (201).

5. The anti-retraction screw structure according to claim 4, characterized in that: The matching seat (2) further comprises: a matching groove (203), the matching groove (203) is designed in the shape of a circular groove structure, and the matching groove (203) is opened in the middle of the matching seat (2); a connecting card slot (204), the connecting card slot (204) is designed in the shape of a rectangular groove structure, and the number of the connecting card slots (204) is set to four, and the connecting card slots (204) are opened in the shape of a cross inside the matching groove (203); the connecting card slot (204) and the matching card block (103) are matched.

6. The anti-retraction screw structure according to claim 5, characterized in that: The matching seat (2) further comprises: an anti-slip protrusion (205), the anti-slip protrusion (205) being integrally arranged at the bottom of the matching seat (2); and a connecting pin (206), the connecting pin (206) being slidably arranged inside the connecting hole (202).

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