A fastening bolt structure

Abstract

The utility model discloses a fastening bolt structure, including integrative bolt end portion and bolt stem portion, the middle part of bolt stem portion lower end surface is equipped with fixed groove upward, is equipped with the communication groove on the bolt stem portion, the communication groove is communicated in fixed groove, the uppermost end of communication groove is lower than fixed groove, and the limit board is inserted in fixed groove, and the communication groove department is equipped with the close -fitted part, and the limit board is pressed against the close -fitted part, and the close -fitted part is used for pressing against the groove wall of the thread groove connected. The utility model discloses through the close -fitted part close -fitted thread groove groove wall increases the connection fastening, and simultaneously, can move to the upper limit board from the second fixed groove with the help of the tool to the adjustment of the close -fitted part to the guarantee connection stability or the bolt of easy dismounting.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a fastening bolt structure. Background Technology

[0002] Bolts are one of the most common fasteners, typically connected to nuts or threaded holes via threads. However, under prolonged vibration, bolts connected to threaded holes can loosen or come loose, necessitating a reinforced connection between the bolt and the threaded hole. Existing methods for enhancing bolt connection stability generally include adding washers and slotting the bolt shank with anti-slip components. However, the method of using anti-slip components relies on elastic elements connected to the anti-slip components to hold the threads in place, and the reliance on a single elastic element is also susceptible to vibration, indicating room for improvement. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned background technology by providing a fastening bolt structure with good anti-loosening effect when connected to a threaded hole.

[0004] To achieve the above objectives, this utility model provides a fastening bolt structure, which adopts the following technical solution:

[0005] A fastening bolt structure includes an integrally formed bolt end and bolt shank. The lower end face of the bolt shank has a fixing groove at the center and an upward-facing groove. The bolt shank has a connecting groove that connects to the fixing groove. The connecting groove is lower than the uppermost end of the fixing groove. A limiting plate is inserted into the fixing groove. A clamping member is provided at the connecting groove. The limiting plate abuts against the clamping member. The clamping member is used to abut against the groove wall of the connecting threaded groove.

[0006] A further improvement of the fastening bolt structure of this utility model is that the upper and lower ends of the abutment are provided with protrusions, the upper and lower ends of the connecting groove are provided with sliding grooves for the protrusions to be inserted and slid, and the lower end of the abutment is inclined at the end near the fixing groove.

[0007] A further improvement of the fastening bolt structure of this utility model is that the limiting plate includes a lower limiting plate and an upper limiting plate. The lower limiting plate is a hollow cylinder, and two sets of vertical fixed plates are provided on the outer periphery of the lower limiting plate. The groove wall of the fixing groove is provided with a fixed groove for the fixed plate to be inserted and for limiting the fixed plate. The upper limiting plate includes a T-shaped fixing part, the upper end of the fixing part abuts against the clamping member, and two sets of adjusting parts are provided on the outer periphery of the lower end of the fixing part. The upper surface of the lower limiting plate is provided with an indentation for the adjusting part to be inserted. A vertical second sliding groove is provided on the inner side of the lower limiting plate. After the upper limiting plate rotates, it is inserted into the sliding groove and slides downward. The top of the upper groove of the fixing groove is provided with a second fixing groove that penetrates the end of the bolt. The center of the upper end surface of the fixing part is provided with a threaded groove.

[0008] A further improvement of the fastening bolt structure of this utility model is that the concave part is provided with an elastic pad on the vertical wall, and the elastic pad is a compression adjustment part.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention increases the tightness of the connection by using a clamping element to press against the wall of the threaded groove. At the same time, the upper limit plate can be moved from the second fixed groove with the help of a tool, thereby adjusting the clamping element to ensure connection stability or facilitate bolt removal. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the limiting plate of this utility model;

[0013] In the figure: 1 Bolt end, 2 Bolt shank, 3 Fixing groove, 4 Connecting groove, 5 Clamping part, 6 Lower limit plate, 7 Upper limit plate, 8 Adjusting part, 9 Fixed plate, 10 Second sliding groove, 11 Second fixing groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1 and Figure 2 As shown, a fastening bolt structure includes an integrally formed bolt end 1 and bolt shank 2. A fixing groove 3 is provided in the middle of the lower end face of the bolt shank, and a connecting groove 4 is provided on the bolt shank. The connecting groove is connected to the fixing groove and is lower than the uppermost end of the fixing groove. A limiting plate is inserted in the fixing groove, and a clamping member 5 is provided at the connecting groove. The limiting plate abuts against the clamping member, and the clamping member is used to abut against the groove wall of the connecting thread groove.

[0016] Specifically, the clamping member has protrusions at both the upper and lower ends, and the connecting groove has sliding grooves at both the upper and lower ends for the protrusions to be inserted into and slide. The lower end of the clamping member is inclined near the fixing groove. An elastic pad can be provided at the sliding groove to prevent the clamping member from sliding out of the connecting groove when the bolt rotates.

[0017] Specifically, the limiting plate includes a lower limiting plate 7 and an upper limiting plate 6. The lower limiting plate is a hollow cylinder with two sets of vertical fixed plates 9 on its outer periphery. The wall of the fixing groove has a fixed groove for inserting and limiting the fixed plates. The upper limiting plate includes a T-shaped fixing part with its upper end abutting against a clamping member. The lower outer periphery of the fixing part has two sets of adjusting parts 8, which are block-shaped. The upper surface of the lower limiting plate has an indentation for inserting the adjusting parts. The inner side of the lower limiting plate has a vertical second sliding groove 10. After the upper limiting plate rotates, the adjusting part inserts into the second sliding groove and slides downward. The second sliding groove can be slightly larger than the adjusting part. The top of the upper groove of the fixing groove has a second fixing groove 11 that penetrates the end of the bolt. The center of the upper end face of the fixing part has a threaded groove. The indentation has an elastic pad on its vertical wall, which presses against the adjusting part.

[0018] The working principle of this utility model is as follows: The lower part of the upper limit plate is inserted into the lower limit plate, the lower limit plate is placed in the fixed groove, a retaining member is placed, and the bolt is screwed into the threaded groove. After the bolt is screwed in place, an external positioning tool, which can be a screw rod, is used to connect to the threaded groove of the fixed part of the upper limit plate. The upper limit plate is then lifted, causing it to slide out of the lower limit plate. At this time, the upper limit plate abuts against the retaining member, causing the retaining member to abut against the groove wall of the threaded groove where the bolt is connected. Then, the upper limit plate is rotated and pressed down, causing the adjusting part to engage in the concave part. The screw rod of the tool is reversed and moved out. The bolt connection is now stable. At this time, the retaining member protrudes slightly from the connecting groove, thereby improving the connection tightness of the bolt.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fastening bolt structure, characterized in that: It includes an integrally formed bolt end and bolt shank. The lower end face of the bolt shank has a fixing groove at the center and an upward-facing groove. The bolt shank has a connecting groove that connects to the fixing groove. The connecting groove is lower than the uppermost end of the fixing groove. A limiting plate is inserted into the fixing groove. A clamping member is provided at the connecting groove. The limiting plate abuts against the clamping member. The clamping member is used to abut against the groove wall of the connecting thread groove.

2. The fastening bolt structure according to claim 1, characterized in that: The upper and lower ends of the abutment are provided with protrusions, and the upper and lower ends of the connecting groove are provided with sliding grooves for the protrusions to be inserted and slid. The lower end of the abutment is inclined near the fixed groove.

3. The fastening bolt structure according to claim 2, characterized in that: The limiting plate includes a lower limiting plate and an upper limiting plate. The lower limiting plate is a hollow cylinder with two sets of vertical fixed plates on its outer periphery. The wall of the fixing groove is provided with a fixed groove for the fixed plates to be inserted and for limiting the fixed plates. The upper limiting plate includes a T-shaped fixing part with its upper end abutting against a clamping member. Two sets of adjusting parts are provided on the outer periphery of the lower end of the fixing part. The upper surface of the lower limiting plate is provided with an indentation for the adjusting parts to be inserted. A vertical second sliding groove is provided on the inner side of the lower limiting plate. After the upper limiting plate rotates, it is inserted into the sliding groove and slides downward. The top of the upper groove of the fixing groove is provided with a second fixing groove that penetrates the end of the bolt. The center of the upper end surface of the fixing part is provided with a threaded groove.

4. The fastening bolt structure according to claim 3, characterized in that: The concave portion is provided with an elastic pad on the vertical wall, and the elastic pad is squeezed and adjusted.

Images