CN223635102U

CN223635102U - Screw-in fasteners

Info

Publication number: CN223635102U
Application number: CN202520392254.6U
Authority: CN
Inventors: 周文祥; 赵海峰; 顾强; 王奎明
Original assignee: Jiangsu Haidun Engineering Technology Co ltd
Current assignee: Jiangsu Haidun Engineering Technology Co ltd
Priority date: 2025-03-07
Filing date: 2025-03-07
Publication date: 2025-12-05
Anticipated expiration: 2035-03-07

Abstract

This utility model discloses a screw-in fastener, specifically relating to the field of fastener technology. It includes a threaded sleeve, a bolt, and a support frame. The bolt is threadedly connected to the inner wall of the threaded sleeve, and the support frame is located on one side of the threaded sleeve. The support frame has an internal locking assembly. The locking assembly includes a linkage screw rotatably disposed inside the support frame, and two socket blocks are threadedly connected to the outer wall of the linkage screw. Each socket block has a fixedly connected linkage block on one side, and a positioning strip is fixedly connected to one end of each of the two linkage blocks. This utility model uses a locking assembly where the linkage screw rotates inside the support frame. The linkage screw drives the two socket blocks to approach each other under the action of threaded transmission force. The insert is inserted into the insertion hole, and the insert block is inserted into the positioning hole on the first rotating cap, preventing the bolt from loosening and rotating, and simultaneously preventing the first rotating cap from loosening and rotating, resulting in a higher locking stability.

Description

Screw-in fastener

Technical Field

The utility model relates to the technical field of fasteners, in particular to a screw-in fastener.

Background

Screw-in fasteners have a wide variety of applications in machine manufacturing and assembly, and are used primarily for joining and securing purposes, screw-in fasteners that rotationally lock shaft bores or threaded bores to securely join two or more components together. The connecting mode is simple and effective, and has high stability and reliability. In the fields of steel structures, ships and mechanical equipment, screw-in fasteners are widely applied to connecting steel beams, steel columns, hull structures and various mechanical equipment parts, and the stability and safety of the whole structure are ensured.

Among the prior publications, patent publication number CN220791666U discloses a fastener, aimed at; the detection mechanism is used for detecting the position of the hole on the eccentric nut; the device can quickly determine the position of the hole of the eccentric nut, and then automatically adjust the milling cutter to the corresponding position, so that the convenience of chamfering the eccentric nut can be effectively improved, and the efficiency of chamfering the eccentric nut can be improved;

After the screw-in fastener is rotationally fixed, due to the fact that threads are meshed and locked, in the later use process, equipment can vibrate, and under the problems of other factors, the screw-in fastener is enabled to have the problem of loosening of threads, and locking firmness is poor.

Disclosure of utility model

In order to overcome the defects of the prior art, the technical scheme is that the screw-in type fastener comprises a threaded sleeve, bolts and a supporting frame, wherein the bolts are in threaded connection with the inner wall of the threaded sleeve, the supporting frame is located on one side of the threaded sleeve, a butt joint locking assembly is arranged in the supporting frame, the butt joint locking assembly comprises a linkage screw rod which is rotatably arranged in the supporting frame, two sleeve connecting blocks are in threaded connection with the outer wall of the linkage screw rod, one side of each sleeve connecting block is fixedly connected with the linkage block, one end of each of the two linkage blocks is fixedly connected with a positioning strip, one side of each positioning strip is fixedly provided with an inserting block, an inserting column is arranged below each inserting block, the inserting column is fixedly connected with each positioning strip, two sides of the inner wall of the threaded sleeve are respectively provided with an inserting hole, the top end of each bolt is fixedly connected with a first rotating cap, and two sides of each first rotating cap are respectively provided with a positioning hole.

Preferably, the two threads of the outer wall of the linkage screw rod are opposite and symmetrically arranged, the two sleeve joint blocks are in sliding connection with the support frame, and the inner wall of the support frame and the outer wall of the sleeve joint block are smooth surfaces. The plug posts are inserted between the threaded sleeves to which the plug holes belong, the vertical section of the plug posts is circular, and the two plug posts are symmetrically arranged relative to the threaded sleeves. The plug hole is inserted between the first rotating cap to which the positioning hole belongs, and the vertical section of the plug hole is rectangular. And one end part of the linkage screw is fixedly connected with a second rotating cap, and the vertical section shape of the second rotating cap is polygonal. The bottom fixedly connected with chassis of thread bush, a plurality of mounting holes have been seted up to the inside on chassis, and a plurality of the mounting hole is the equidistant distributed arrangement setting of ring.

When the technology is used, the linkage screw rod rotates in the support frame, the linkage screw rod drives the two sleeve joint blocks to be close to each other under the action of the screw thread transmission force, the linkage blocks enable the positioning strips to move right, the inserting columns are inserted into the inserting holes, the inserting blocks are inserted into the positioning holes on the first rotating caps, so that the bolts are prevented from loosening and rotating, and meanwhile the first rotating caps are prevented from loosening and rotating.

The rotary assembly comprises a fixed rotary cap fixedly arranged at the top end of the first rotary cap, a rotary column, a linkage cap, a butt joint column and an inclined jack, wherein the rotary column is fixed at the top end of the fixed rotary cap, the linkage cap is fixedly connected at the top end of the rotary column, the butt joint column is fixedly arranged on the upper surface of the linkage cap, and the inclined jack is formed in one side of the linkage cap.

When the technology is used, the spanner rotates the linkage cap, or rotates the fixed cap that rotates, can also rotate the first cap that rotates, avoids sliding the tooth problem to take place, can also insert the slope inside of slope jack through striking the nail simultaneously, and the slope of slope jack is that the linkage cap to drive the butt joint post rotation, and the fixed cap that rotates.

The utility model has the technical effects and advantages that:

1. According to the utility model, the butt joint locking assembly is adopted, the bolts are in threaded engagement with the threaded sleeves, the linkage screw rod rotates in the support frame, the linkage screw rod drives the two sleeve joint blocks to mutually approach under the action of the threaded transmission force, the inserted column is inserted into the inserted hole, the inserted block is inserted into the positioning hole on the first rotating cap, the bolt is prevented from loosening and rotating, meanwhile, the first rotating cap is prevented from loosening and rotating, and the locking firmness is higher;

2. According to the utility model, the wrench rotates the linkage cap or rotates the fixed rotating cap through the rotating assembly, the first rotating cap can be rotated, and the knocking nail can be inserted into the inclined inner part of the inclined jack, so that the knocking operation on the knocking nail is realized, the first rotating cap can be rotated in different modes, and the situation that the sliding tooth cannot rotate the first rotating cap is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a screw-in fastener of the present utility model.

Fig. 2 is a schematic view of a truncated partial structure of a junction between a support frame and a linkage screw.

Fig. 3 is a schematic view showing a bottom partial structure of a joint of a sleeve joint block and a linkage block according to the present utility model.

Fig. 4 is a schematic view of the bottom view of the screw-in fastener of the present utility model.

Fig. 5 is a schematic view showing a cut-off partial structure of a connection part of a first rotating cap and a fixed rotating cap according to the present utility model.

The reference sign is 1, a thread bush; 2, bolts, 3, a supporting frame, 4, a linkage screw rod, 5, a sleeving block, 6, a linkage block, 7, a positioning strip, 8, an inserting block, 9, an inserting column, 10, an inserting hole, 11, a first rotating cap, 12, a positioning hole, 13, a second rotating cap, 14, a chassis, 15, a mounting hole, 16, a fixed rotating cap, 17, a rotating column, 18, a linkage cap, 19, a butting column and 20, and an inclined inserting hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-5, A butt-joint locking assembly is arranged on the screw-in fastener, the butt-joint locking assembly can enable an insertion block 8 to be inserted into a positioning hole 12 on a first rotating cap 11, the bolt 2 is prevented from loosening and rotating, meanwhile, the first rotating cap 11 is prevented from loosening and rotating, locking firmness is higher, and the specific structure of the butt-joint locking assembly is as follows.

In the technical scheme, as shown in the accompanying drawings 1-3, a bolt 2 is in threaded connection with the inner wall of a threaded sleeve 1, a supporting frame 3 is positioned on one side of the threaded sleeve 1, a butt joint locking assembly is arranged in the supporting frame 3, the butt joint locking assembly comprises a linkage screw 4 which is rotatably arranged in the supporting frame 3, two sleeved blocks 5 are in threaded connection with the outer wall of the linkage screw 4, one side of each sleeved block 5 is fixedly connected with a linkage block 6, one end part of each linkage block 6 is fixedly connected with a positioning strip 7, one side of each positioning strip 7 is fixedly provided with an inserting block 8, an inserting column 9 is arranged below the inserting block 8, the inserting column 9 is fixedly connected with the positioning strips 7, inserting holes 10 are formed in two sides of the inner wall of the threaded sleeve 1, the top end of the bolt 2 is fixedly connected with a first rotating cap 11, and positioning holes 12 are formed in two sides of the first rotating cap 11. The two threads of the outer wall of the linkage screw 4 are opposite and symmetrically arranged, the two sleeving blocks 5 are in sliding connection with the supporting frame 3, and the inner wall of the supporting frame 3 and the outer wall of the sleeving blocks 5 are smooth surfaces. The plug posts 9 are inserted between the threaded sleeves 1 with the plug holes 10, the vertical section of the plug posts 9 is circular, and the two plug posts 9 are symmetrically arranged relative to the threaded sleeves 1. The plug hole 10 is plugged with the first rotating cap 11 to which the positioning hole 12 belongs, and the vertical section of the plug hole 10 is rectangular.

In this technical scheme, as shown in fig. 1-4, a second rotating cap 13 is fixedly connected to one end of the linkage screw 4, and the vertical section of the second rotating cap 13 is polygonal, so that the second rotating cap 13 can be rotated, the second rotating cap 13 enables the linkage screw 4 to rotate, and the linkage screw 4 rotates inside the support frame 3, so that rotation operation is facilitated. The bottom fixedly connected with chassis 14 of thread bush 1, a plurality of mounting holes 15 have been seted up to the inside of chassis 14, and a plurality of mounting holes 15 are the equidistant distributed arrangement setting of ring to through the mounting hole 15 butt joint on the chassis 14 on the erection column, chassis 14 provides stable support to thread bush 1.

When the technology is used, the mounting holes 15 on the chassis 14 are butted on the mounting columns, the first rotating cap 11 is rotated simultaneously, the first rotating cap 11 drives the bolt 2 to rotate, the bolt 2 and the threaded sleeve 1 are in threaded engagement, after the positioning holes 12 are in threaded engagement and locking, the positioning holes 12 are butted with the inserting blocks 8 simultaneously, the inserting holes 10 are butted with the inserting columns 9 simultaneously, the second rotating cap 13 is rotated, the second rotating cap 13 enables the linkage screw 4 to rotate, the linkage screw 4 rotates in the supporting frame 3, the linkage screw 4 drives the two sleeving blocks 5 to be close to each other under the action of the threaded transmission force, the sleeving blocks 5 drive the linkage blocks 6 to move right, the linkage blocks 6 enable the positioning strips 7 to move right, the positioning strips 7 drive the inserting columns 9 to move right, the inserting columns 9 are inserted into the inserting holes 10, the positioning strips 7 drive the inserting blocks 8 to move right, the inserting blocks 8 are inserted into the positioning holes 12 on the first rotating cap 11, the bolt 2 is prevented from rotating loose, and the connection firmness of the bolt 2 and the threaded sleeve 1 is greatly improved.

In the technical scheme, as shown in fig. 5, a rotating assembly is fixedly connected to the top end of a first rotating cap 11, the rotating assembly comprises a fixed rotating cap 16 fixedly arranged on the top end of the first rotating cap 11, the rotating assembly further comprises a rotating column 17, a linkage cap 18, a butt joint column 19 and an inclined jack 20, the rotating column 17 is fixedly arranged on the top end of the fixed rotating cap 16, the linkage cap 18 is fixedly connected to the top end of the rotating column 17, the butt joint column 19 is fixedly arranged on the upper surface of the linkage cap 18, and the inclined jack 20 is arranged on one side of the linkage cap 18.

When the technology is used, when the first rotating cap 11 rotates, the wrench rotates the linkage cap 18, or rotates the fixed rotating cap 16, the first rotating cap 11 can be rotated, so that multistage rotation is realized, the sliding problem is avoided, meanwhile, the inclined inside of the inclined jack 20 can be inserted through knocking nails, the knocking operation is realized on the knocking nails, the linkage cap 18 with the inclined faces of the inclined jacks 20 drives the butt joint column 19 to rotate, the linkage cap 18 drives the rotating column 17 to rotate, and the fixed rotating cap 16 rotates. The fixed rotating cap 16 enables the first rotating cap 11 to rotate, so that the first rotating cap 11 can be rotated in different modes, and the situation that sliding teeth cannot rotate the first rotating cap 11 is avoided.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The screw-in fastener comprises a thread sleeve (1), a bolt (2) and a support frame (3), and is characterized in that the bolt (2) is in threaded connection with the inner wall of the thread sleeve (1), the support frame (3) is positioned at one side of the thread sleeve (1), and a butt joint locking assembly is arranged in the support frame (3);

The butt joint locking assembly comprises a linkage screw rod (4) which is rotatably arranged inside a supporting frame (3), two sleeving blocks (5) are connected to the outer wall of the linkage screw rod (4) in a threaded mode, one side of each sleeving block (5) is fixedly connected with a linkage block (6), one end portion of each linkage block (6) is fixedly connected with a locating strip (7), one side of each locating strip (7) is fixedly provided with an inserting block (8), an inserting column (9) is arranged below each inserting block (8), and the inserting columns (9) are fixedly connected with the corresponding locating strips (7);

The two sides of the inner wall of the threaded sleeve (1) are provided with plug holes (10), the top end of the bolt (2) is fixedly connected with a first rotating cap (11), and two sides of the first rotating cap (11) are provided with positioning holes (12).

2. The screw-in fastener according to claim 1, wherein the two threads of the outer wall of the linkage screw (4) are opposite and symmetrically arranged, and the two sleeving blocks (5) are both in sliding connection with the support frame (3);

the inner wall of the support frame (3) and the outer wall of the sleeve joint block (5) are smooth surfaces.

3. The screw-in fastener according to claim 1, wherein the plug post (9) is inserted into the threaded sleeve (1) to which the insertion hole (10) belongs, and the vertical section of the plug post (9) is circular;

the two inserting posts (9) are symmetrically arranged relative to the threaded sleeve (1).

4. The screw-in fastener according to claim 1, wherein the insertion hole (10) is inserted into the first cap (11) to which the positioning hole (12) belongs, and the insertion hole (10) has a rectangular vertical cross-section.

5. The screw-in fastener according to claim 1, wherein a second turning cap (13) is fixedly connected to one end of the linkage screw (4), and a vertical cross-sectional shape of the second turning cap (13) is polygonal.

6. The screw-in fastener according to claim 1, wherein the bottom end of the thread bush (1) is fixedly connected with a chassis (14), a plurality of mounting holes (15) are formed in the chassis (14), and the plurality of mounting holes (15) are distributed and arranged in an equidistant manner in a circular ring.

7. The screw-in fastener according to claim 1, wherein a rotating member is fixedly connected to the top end of the first cap (11);

the rotating assembly comprises a fixed rotating cap (16) fixedly arranged at the top end of the first rotating cap (11), a rotating column (17), a linkage cap (18), a butt joint column (19) and an inclined jack (20);

The rotating post (17) is fixed at the top end of the fixed rotating cap (16), the linkage cap (18) is fixedly connected at the top end of the rotating post (17), the butt joint post (19) is fixedly arranged on the upper surface of the linkage cap (18), and the inclined jack (20) is formed in one side of the linkage cap (18).