Screw-in fastener

Abstract

The utility model discloses a screw-in type fastener, and particularly relates to the technical field of fasteners, the screw-in type fastener comprises a thread bushing, a bolt and a support frame, the bolt is in threaded connection with the inner wall of the thread bushing, the support frame is located on one side of the thread bushing, and a butt joint locking assembly is arranged in the support frame; the butt joint locking assembly comprises a linkage screw rotationally arranged in the supporting frame, the outer wall of the linkage screw is in threaded connection with two sleeving blocks, one side of each sleeving block is fixedly connected with a linkage block, and one end of each linkage block is fixedly connected with a positioning strip. The butt-joint locking assembly is adopted, the linkage screw rod rotates in the supporting frame, the linkage screw rod drives the two sleeving blocks to get close to each other under the action of thread transmission force, the inserting column is inserted into the inserting hole, the inserting block is inserted into the positioning hole in the first rotating cap, the bolt is prevented from loosening and rotating, and meanwhile the first rotating cap is prevented from loosening and rotating; and the locking firmness is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field more specifically, the utility model relates to screw -in fastener. BACKGROUND

[0002] Screw -in fastener has wide application in mechanical manufacturing and assembly, and its main use is reflected in the connection and fixing effect, screw -in fastener, through the mode of rotation locking shaft hole or thread hole, two or more components are firmly connected together. This connection mode is not only simple and effective, but also has higher stability and reliability. In the field of steel structure, ship, mechanical equipment, screw -in fastener is widely used in connecting steel beam, steel column, ship structure and various mechanical equipment parts, to ensure the stability and safety of the whole structure.

[0003] In the existing public literature, the patent with the patent number CN220791666U discloses a kind of fastener, for;Then the position where the hole on eccentric nut is located is detected by detection mechanism;First fixed frame is equipped with moving mechanism, moving mechanism is used to drive milling cutter to move to the position where the hole of eccentric nut is located;The device can quickly determine the position where the hole of eccentric nut is located, and then automatically adjust milling cutter to corresponding position, so as to effectively improve the convenience of eccentric nut chamfering, and then can improve the efficiency of eccentric nut chamfering;But the patent has the following defects;

[0004] After screw -in fastener is rotated and fixed, due to thread engagement locking, in the later use process, equipment will vibrate and other factors, and screw -in fastener will appear thread loosening problem, and locking firmness is poor. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides the following technical scheme: screw -in fastener, including threaded sleeve, bolt and support frame, the bolt is threadedly connected to the inner wall of threaded sleeve, the support frame is located at one side of threaded sleeve, the inside of support frame is equipped with butt joint locking assembly;The butt joint locking assembly includes a linkage screw rod rotatably arranged in the inside of support frame, and the outer wall of the linkage screw rod is threadedly connected with two sleeve blocks, one side of each sleeve block is fixedly connected with a linkage block, one end of two linkage blocks is fixedly connected with a positioning strip, and one side of the positioning strip is fixedly installed with a plug-in block, a plug-in column is arranged below the plug-in block, and the plug-in column is fixedly connected between the positioning strip;The inner wall of threaded sleeve is provided with a plug-in hole on both sides, and the top end of the bolt is fixedly connected with a first cap, and the both sides of the first cap are provided with positioning holes.

[0006] Preferably, the outer wall of the linkage screw is provided with two opposite and symmetrical threads, and the two sleeve blocks are slidingly connected with the support frame; the inner wall of the support frame and the outer wall of the sleeve block are smooth surfaces; the insertion column is inserted into the threaded sleeve to which the insertion hole belongs, and the vertical cross-section of the insertion column is circular; the two insertion columns are symmetrically arranged with respect to the threaded sleeve; the insertion hole is inserted into the first rotating cap to which the positioning hole belongs, and the vertical cross-section of the insertion hole is rectangular; one end of the linkage screw is fixedly connected with a second rotating cap, and the vertical cross-section of the second rotating cap is polygonal; the bottom end of the threaded sleeve is fixedly connected with a bottom disc, and a plurality of mounting holes are formed in the inside of the bottom disc and arranged in a circular ring at equal intervals.

[0007] When the technology is used, the linkage screw rotates in the support frame, the linkage screw drives the two sleeve blocks to move close to each other under the action of the threaded transmission force, the linkage block moves the positioning strip to the right, the insertion column is inserted into the insertion hole, and the insertion block is inserted into the positioning hole in the first rotating cap, so that the bolt is prevented from loosening and rotating, and the first rotating cap is also prevented from loosening and rotating.

[0008] Preferably, the top end of the first rotating cap is fixedly connected with a rotating assembly; the rotating assembly comprises a fixed rotating cap fixedly arranged at the top end of the first rotating cap, a rotating column, a linkage cap, a butt joint column and an inclined insertion hole; the rotating column is fixed at the top end of the fixed rotating cap, the linkage cap is fixedly connected at the top end of the rotating column, the butt joint column is fixed on the upper surface of the linkage cap, and the inclined insertion hole is formed in one side of the linkage cap.

[0009] When the technology is used, the wrench rotates the linkage cap, or rotates the fixed rotating cap, and can also rotate the first rotating cap, so that the problem of slipping teeth is avoided, and the nail can also be inserted into the inclined inside of the inclined insertion hole by knocking, the inclined surface of the inclined insertion hole is correct, the linkage cap drives the butt joint column to rotate, and the fixed rotating cap rotates.

[0010] The technical effects and advantages of the utility model are as follows:

[0011] 1. The utility model discloses a butt joint locking assembly, the bolt is engaged with the threaded sleeve, the linkage screw rotates in the support frame, the linkage screw drives the two sleeve blocks to move close to each other under the action of the threaded transmission force, the insertion column is inserted into the insertion hole, and the insertion block is inserted into the positioning hole in the first rotating cap, so that the bolt is prevented from loosening and rotating, and the first rotating cap is also prevented from loosening and rotating, and the locking is more firm.

[0012] 2. The utility model discloses a rotating assembly, the wrench rotates the linkage cap, or rotates the fixed rotating cap, and can also rotate the first rotating cap, and can also insert the nail into the inclined inside of the inclined insertion hole by knocking, so that the knocking operation is realized to the knocking nail, the first rotating cap can be rotated in different ways, and the problem of slipping teeth is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the screw-in fastener of the utility model.

[0014] Figure 2 It is the truncated partial structure schematic diagram of the connecting place of the support frame and the linkage screw rod of the utility model.

[0015] Figure 3 It is the truncated partial structure schematic diagram of the connecting place of the sleeve joint block and the linkage block of the utility model.

[0016] Figure 4 It is the structure schematic diagram of the screw-in fastener of the utility model.

[0017] Figure 5 It is the truncated partial structure schematic diagram of the connecting place of the first rotating cap and the fixed rotating cap of the utility model.

[0018] The figure mark is: 1, threaded sleeve; 2, bolt; 3, support frame; 4, linkage screw rod; 5, sleeve joint block; 6, linkage block; 7, positioning strip; 8, insertion block; 9, insertion column; 10, insertion hole; 11, first rotating cap; 12, positioning hole; 13, second rotating cap; 14, bottom disc; 15, mounting hole; 16, fixed rotating cap; 17, rotating column; 18, linkage cap; 19, butt joint column; 20, inclined insertion hole. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] As shown in the drawings, Figure 1 As shown in the drawings, Figure 5 The screw-in fastener is provided with a butt joint locking assembly, the butt joint locking assembly can make the insertion block 8 inserted into the positioning hole 12 on the first rotating cap 11, avoid the bolt 2 loose rotation, at the same time avoid the first rotating cap 11 loose rotation, and the locking firmness is higher, and the specific structure of the butt joint locking assembly is as follows.

[0021] In the technical scheme, as shown in the drawings, Figure 1 As shown in the drawings, Figure 3As shown, the bolt 2 is threadedly connected to the inner wall of the threaded sleeve 1, the support frame 3 is located on one side of the threaded sleeve 1, and the inside of the support frame 3 is provided with a butt joint locking assembly; the butt joint locking assembly comprises a linkage screw 4 rotatably arranged in the inside of the support frame 3, and the outer wall of the linkage screw 4 is threadedly connected with two sleeve blocks 5, one side of each of the sleeve blocks 5 is fixedly connected with a linkage block 6, one end of each of the two linkage blocks 6 is fixedly connected with a positioning strip 7, and one side of the positioning strip 7 is fixedly installed with a plug block 8, and a plug column 9 is arranged below the plug block 8 and is fixedly connected between the plug column 9 and the positioning strip 7; the inner wall of the threaded sleeve 1 is provided with a plug hole 10 on both sides, and the top end of the bolt 2 is fixedly connected with a first rotating cap 11, and the both sides of the first rotating cap 11 are provided with positioning holes 12.

[0022] In the technical solution, as shown in the accompanying drawings Figure 1 - the accompanying drawings Figure 4 As shown, one end of the linkage screw 4 is fixedly connected with a second rotating cap 13, and the vertical sectional shape of the second rotating cap 13 is polygonal, so as to facilitate the rotation of the second rotating cap 13, the second rotating cap 13 rotates the linkage screw 4, and the linkage screw 4 rotates in the inside of the support frame 3, facilitating the rotation operation. The bottom end of the threaded sleeve 1 is fixedly connected with a bottom disc 14, the inside of the bottom disc 14 is provided with a plurality of mounting holes 15, and the plurality of mounting holes 15 are arranged in a circular ring equidistant distribution, so as to facilitate the butt joint of the mounting holes 15 on the bottom disc 14 on the mounting column, and the bottom disc 14 provides stable support for the threaded sleeve 1.

[0023] When the technical solution is used, the mounting holes 15 on the bottom disc 14 are butt jointed on the mounting column, and the first rotating cap 11 is rotated, the first rotating cap 11 drives the bolt 2 to rotate, the bolt 2 is threadedly engaged with the threaded sleeve 1, and when the positioning holes 12 are threadedly engaged and locked, the positioning holes 12 are butt jointed with the plug block 8, and the plug hole 10 is butt jointed with the plug column 9, so that the second rotating cap 13 is rotated, the second rotating cap 13 rotates the linkage screw 4, the linkage screw 4 rotates in the inside of the support frame 3, and the linkage screw 4 drives the two sleeve blocks 5 to move close to each other under the action of the threaded transmission force, the sleeve block 5 drives the linkage block 6 to move right, the linkage block 6 drives the positioning strip 7 to move right, the positioning strip 7 drives the plug column 9 to move right, the plug column 9 is inserted into the inside of the plug hole 10, and at the same time, the positioning strip 7 drives the plug block 8 to move right, and the plug block 8 is inserted into the positioning hole 12 on the first rotating cap 11, so that the bolt 2 is prevented from loosening and rotating, and the first rotating cap 11 is prevented from loosening and rotating, and the firmness of the connection and locking of the bolt 2 and the threaded sleeve 1 is greatly improved.

[0024] In the technical solution, as shown in the accompanying drawings Figure 5 The top end of the first rotating cap 11 is fixedly connected with a rotating assembly; the rotating assembly comprises a fixed rotating cap 16 fixedly arranged at the top end of the first rotating cap 11, and further comprises a rotating column 17, a linkage cap 18, a butt joint column 19 and an inclined insertion hole 20; the rotating column 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 column 17, the butt joint column 19 is fixedly arranged at the upper surface of the linkage cap 18, and the inclined insertion hole 20 is arranged at one side of the linkage cap 18.

[0025] When the first rotating cap 11 is rotated, the wrench rotates the linkage cap 18, or rotates the fixed rotating cap 16, and can also rotate the first rotating cap 11, so that multi-stage rotation is realized, the problem of slipping teeth is avoided, and the knocking nail can be inserted into the inclined interior of the inclined insertion hole 20 by knocking, so that the knocking operation is realized on the knocking nail, the inclined surface of the inclined insertion hole 20 is opposite to the linkage cap 18, the linkage cap 18 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 rotates the first rotating cap 11, so that the first rotating cap 11 can be rotated in different ways, and the problem that the first rotating cap 11 cannot be rotated due to slipping teeth is avoided.

[0026] The above only describes preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A screw fastener comprising a threaded sleeve (1), a bolt (2) and a bracket (3), characterized in that: The bolt (2) is threadedly connected to the inner wall of the threaded sleeve (1), the support frame (3) is located on one side of the threaded sleeve (1), and the inside of the support frame (3) is provided with a butt joint locking assembly. The butt joint locking assembly comprises a linkage screw (4) rotatably arranged in the inside of the support frame (3), the outer wall of the linkage screw (4) is threadedly connected with two sleeve blocks (5), one side of each of the sleeve blocks (5) is fixedly connected with a linkage block (6), one end of each of the linkage blocks (6) is fixedly connected with a positioning strip (7), one side of the positioning strip (7) is fixedly installed with a plug block (8), a plug column (9) is arranged below the plug block (8), and the plug column (9) is fixedly connected between the positioning strip (7). The inner wall of the threaded sleeve (1) is provided with a plug-in hole (10) on both sides, and the top end of the bolt (2) is fixedly connected with a first rotating cap (11), and the both sides of the first rotating cap (11) are provided with a positioning hole (12).

2. The screw fastener of claim 1, wherein: The outer wall of the linkage screw (4) is oppositely and symmetrically provided with two threads, and the sleeve blocks (5) are slidably connected with the support frame (3). The inner wall of the support frame (3) and the outer wall of the sleeve block (5) are smooth surfaces.

3. The screw fastener of claim 1, wherein: The plug column (9) is inserted into the threaded sleeve (1) to which the plug-in hole (10) belongs, and the vertical section shape of the plug column (9) is circular. The two plug columns (9) are symmetrically arranged with respect to the threaded sleeve (1).

4. The threaded fastener of claim 1, wherein: The plug-in hole (10) is inserted into the first rotating cap (11) to which the positioning hole (12) belongs, and the vertical section shape of the plug-in hole (10) is rectangular.

5. The threaded fastener of claim 1, wherein: One end of the linkage screw (4) is fixedly connected with a second rotating cap (13), and the vertical section shape of the second rotating cap (13) is polygonal.

6. The threaded fastener of claim 1, wherein: The bottom end of the threaded sleeve (1) is fixedly connected with a bottom disc (14), the inside of the bottom disc (14) is provided with a plurality of mounting holes (15), and the plurality of mounting holes (15) are arranged in a circular ring equidistant distribution.

7. The screw fastener of claim 1, wherein: The top end of the first rotating cap (11) is fixedly connected with a rotating assembly; The rotating assembly comprises a fixed rotating cap (16) fixedly arranged at the top end of the first rotating cap (11), and further comprises a rotating column (17), a linkage cap (18), a butt joint column (19) and an inclined plug hole (20). The rotating column (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 column (17), the butt joint column (19) is fixedly arranged on the upper surface of the linkage cap (18), and the inclined plug hole (20) is arranged on one side of the linkage cap (18).

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