Lockable automobile fastener

Abstract

The utility model relates to the technical field of fasteners, and discloses a lockable automobile fastener which comprises a screw rod, a nut is integrally formed at one end of the screw rod, one end, far away from the nut, of the screw rod is in threaded connection with a nut, a positioning block is integrally formed at one end, far away from the nut, of the screw rod, and the lockable automobile fastener further comprises a positioning mechanism. The positioning mechanism is used for positioning the nut and comprises a positioning sleeve and two sets of positioning pins, and the positioning sleeve is welded to the side, away from the nut, of the nut. Through combination of the screw rod, the nut and the nut, fastening operation of automobile parts can be achieved, the rotary knob is rotated, the wedge-shaped block can be driven by the lead screw to move in the sliding groove and get close to the screw rod, and therefore the two trapezoid blocks are pushed to move reversely, one ends of the two locating pins move out of the sliding groove and penetrate through locating holes in the two sides of the locating sleeve, and the locating pins are fixed. Therefore, the positioning sleeve and the nut are effectively positioned, and the nut is prevented from loosening and falling off in the using process of automobile parts.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a lockable automotive fastener. Background Technology

[0002] Fasteners are a type of mechanical part used for fastening connections and are widely used. They are a general term for mechanical parts used to fasten two or more parts or components into a whole. Currently, bolts and nuts are frequently used in the installation of automotive parts to fix them in place.

[0003] According to the authorized announcement number CN220396236U, a lockable automotive fastener is disclosed, including a nut, a stud, and a bolt. The stud is fixedly connected to the bottom center of the nut. A first washer is provided below the nut and fitted onto the stud. A second washer is provided above the bolt and fitted onto the stud. A first mounting plate is fixedly installed at the bottom of the bolt. An arc-shaped locking piece is fixedly connected to the bottom of the first mounting plate. Limiting teeth are fixedly connected to the outer wall of the arc-shaped locking piece.

[0004] In the process of developing this utility model, the inventors discovered that at least the following problems remain unresolved in the prior art: the aforementioned example uses multiple sets of positioning bolts and positioning screw holes to fix the nuts and locking sleeves that securely connect the first mounting plate and the second mounting plate. This requires a significant amount of time for operators, affecting work efficiency and making subsequent disassembly inconvenient.

[0005] Therefore, we propose a lockable automotive fastener that can solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a lockable automotive fastener that solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lockable automotive fastener, comprising a screw, one end of which is integrally formed with a nut, the end of the screw away from the nut being threadedly connected to a nut, and the end of the screw away from the nut being integrally formed with a positioning block, and further comprising a positioning mechanism; the positioning mechanism is used for positioning the nut, the positioning mechanism comprising a positioning sleeve and two sets of positioning pins, the positioning sleeve being welded to the side of the nut away from the nut, the positioning sleeve having symmetrically formed positioning holes on both sides, the positioning block having a sliding groove inside, trapezoidal blocks being slidably connected to both sides inside the sliding groove, one end of the positioning pin being fixedly connected to the middle of one side of the trapezoidal block, the fixing pins on both sides of the positioning block being movably connected to the positioning holes on both sides of the positioning sleeve, and a wedge block being slidably connected inside the sliding groove.

[0008] As an optional solution to the technical solution of this application, the two sets of trapezoidal blocks are symmetrically arranged, and the two sides of the wedge block are slidably connected to the two sets of trapezoidal blocks respectively.

[0009] As an optional solution to the technical solution of this application, a lead screw is vertically threaded through the middle of the wedge block and connected to it. A knob is fixedly installed at one end of the lead screw on the outside of the slide groove. The lead screw is rotatably connected to the inner wall of the slide groove through a bearing.

[0010] As an optional solution to the technical solution of this application, the positioning block has a storage groove at the end away from the screw, the storage groove is matched with the size of the knob, and the knob has a cross groove on the side away from the lead screw.

[0011] As an optional solution to the technical solution of this application, a spring is provided on the side of the trapezoidal block away from the wedge block, and the spring is sleeved on the outside of the positioning pin.

[0012] As an optional solution to the technical solution of this application, guide grooves are symmetrically provided on both sides of the slide groove, the positioning pin is slidably connected to the guide groove, and the positioning pin is matched with the size of the slide groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by combining the screw, nut, and bolt, the fastening operation of automotive parts can be realized. By turning the knob, the lead screw can drive the wedge block to move in the slide groove and approach the screw, thereby pushing the two sets of trapezoidal blocks to move in opposite directions, so that one end of the two sets of positioning pins moves out of the slide groove and passes through the positioning holes on both sides of the positioning sleeve, thereby effectively positioning the positioning sleeve and the nut, and preventing the nut from loosening and falling off during the use of automotive parts. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a front view of a lockable automotive fastener according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a positioning block for a lockable automotive fastener according to the present invention.

[0017] Figure 3 This is a schematic diagram of part A of a lockable automotive fastener according to the present invention.

[0018] Figure 4 This is a schematic diagram of a positioning block for a lockable automotive fastener according to the present invention.

[0019] In the diagram: 1. Screw; 11. Nut; 12. Nut; 13. Locating block; 14. Locating pin; 15. Locating sleeve; 16. Locating hole; 2. Slide groove; 21. Trapezoidal block; 22. Wedge block; 23. Lead screw; 24. Knob; 25. Spring; 26. Guide groove; 27. Storage groove; 28. Cross groove. Detailed Implementation

[0020] Please see Figures 1-4 This utility model provides a technical solution: a lockable automotive fastener, including a screw 1, one end of which is integrally formed with a nut 11, the other end of the screw 1 away from the nut 11 is threadedly connected to a nut 12, and the other end of the screw 1 away from the nut 11 is integrally formed with a positioning block 13, and also includes a positioning mechanism; the positioning mechanism is used for positioning the nut 12, and includes a positioning sleeve 15 and two sets of positioning pins 14, the positioning sleeve 15 is welded to the side of the nut 12 away from the nut 11, positioning holes 16 are symmetrically opened on both sides of the positioning sleeve 15, and a sliding groove 2 is opened inside the positioning block 13, the two sides inside the sliding groove 2 are slidably connected There is a trapezoidal block 21. One end of the positioning pin 14 is fixedly connected to the middle of one side of the trapezoidal block 21. The fixing pins on both sides of the positioning block 13 are movably connected to the positioning holes 16 on both sides of the positioning sleeve 15. A wedge block 22 is slidably connected inside the slide groove 2. The two sets of trapezoidal blocks 21 are symmetrically arranged. The two sides of the wedge block 22 are slidably connected to the two sets of trapezoidal blocks 21 respectively. A screw rod 23 is vertically threaded through and threaded to the middle of the wedge block 22. A knob 24 is fixedly installed at one end of the screw rod 23 outside the slide groove 2. A cross groove 28 is opened on the side of the knob 24 away from the screw rod 23. The screw rod 23 is rotatably connected to the inner wall of the slide groove 2 through a bearing.

[0021] In this technical solution, the end of the screw 1 furthest from the nut 11 passes through the mounting hole of the automotive part, and then the nut 12 is tightened. It should be noted that the size of the screw 1 is machined according to the mounting hole of the automotive part. When the nut 12 is tightened, the positioning sleeve 15 on the side of the nut 12 furthest from the nut 11 is placed outside the positioning block 13. The positioning hole 16 on the outside of the positioning sleeve 15 is aligned with the positioning pins 14 on both sides of the positioning block 13. The operator inserts a screwdriver into the cross groove 28 on the outside of the knob 24 to rotate the knob 24. This, through the lead screw 23, causes the wedge block 22 to move within the slide groove 2 and approach the screw 1, thereby pushing the two sets of trapezoidal blocks 21 to move in opposite directions within the slide groove 2. This causes one end of each set of positioning pins 14 to move out of the slide groove 2 and pass through the positioning holes 16 on both sides of the positioning sleeve 15, effectively positioning the positioning sleeve 15 and the nut 12, preventing the nut 12 from loosening and falling off during the use of the automotive part. It should be noted that the screw 1 is relatively large and suitable for installing large-volume automotive parts.

[0022] In this embodiment, a spring 25 is provided on the side of the trapezoidal block 21 away from the wedge block 22. The spring 25 is sleeved on the outside of the positioning pin 14. Guide grooves 26 are symmetrically opened on both sides of the slide groove 2. The positioning pin 14 is slidably connected to the guide grooves 26.

[0023] In this technical solution, when it is necessary to disassemble the nut 12, the knob 24 is rotated in the opposite direction. The screw 23 can drive the wedge block 22 away from the screw 1. A spring 25 is provided on the side of the trapezoidal block 21 away from the wedge block 22. The elastic force of the spring 25 can push the two sets of trapezoidal blocks 21 to move relative to each other, and further pull the two sets of positioning pins 14 into the slide groove 2, which can release the positioning of the positioning sleeve 15. The nut 12 and the screw 1 can be disassembled by using the corresponding wrench, which is convenient and quick.

[0024] In this embodiment, a storage groove 27 is provided at the end of the positioning block 13 away from the screw 1. The storage groove 27 matches the size of the knob 24, and the positioning pin 14 matches the size of the slide groove 2.

[0025] In this technical solution, the knob 24 can be housed in the storage groove 27 to prevent the knob 24 from interfering with the installation of automotive parts. The positioning pin 14 can be retracted into the slide groove 2 by matching the size of the positioning pin 14 with the slide groove 2, so that the length of the positioning pin 14 is not too large and affects the connection between the nut 12 and the screw 1.

[0026] When using a lockable automotive fastener, the end of the screw 1 away from the nut 11 is inserted through the mounting hole of the automotive component, and then the nut 12 is tightened. The locating sleeve 15 on the side of the nut 12 away from the nut 11 is placed on the outside of the locating block 13. The locating hole 16 on the outside of the locating sleeve 15 is aligned with the locating pins 14 on both sides of the locating block 13. The operator inserts a screwdriver into the cross groove 28 on the outside of the knob 24 to rotate the knob 24. Through the lead screw 23, the wedge block 22 can be moved in the slide groove 2 and approach the screw 1, thereby pushing the two sets of trapezoidal blocks 21 to move in opposite directions in the slide groove 2, causing one end of the two sets of locating pins 14 to move out. The slide groove 2 passes through the positioning holes 16 on both sides of the positioning sleeve 15, thereby effectively positioning the positioning sleeve 15 and the nut 12, preventing the nut 12 from loosening and falling off during the use of automotive parts. When it is necessary to remove the nut 12, the knob 24 is turned in the opposite direction, and the screw 23 can drive the wedge block 22 away from the screw 1. A spring 25 is provided on the side of the trapezoidal block 21 away from the wedge block 22. The elastic force of the spring 25 can push the two sets of trapezoidal blocks 21 to move relative to each other, and further pull the two sets of positioning pins 14 into the slide groove 2, which can release the positioning of the positioning sleeve 15. The nut 12 and the screw 1 can be removed by using the corresponding wrench, which is convenient and quick.

Claims

1. A lockable automobile fastener comprising a screw rod (1), one end of which is integrally formed with a screw cap (11), and a nut (12) is threadedly connected to the end of the screw rod (1) away from the screw cap (11), characterized in that, The screw rod (1) is integrally formed with a positioning block (13) at one end away from the nut (11), and further comprises a positioning mechanism; The positioning mechanism is used for positioning the nut (12), and comprises a positioning sleeve (15) and two groups of positioning pins (14); the positioning sleeve (15) is welded at one side of the nut (12) away from the nut (11); positioning holes (16) are symmetrically formed in two sides of the positioning sleeve (15); a sliding groove (2) is formed in the positioning block (13); trapezoidal blocks (21) are slidably connected to both sides of the sliding groove (2); one end of the positioning pin (14) is fixedly connected to the middle of one side of the trapezoidal block (21); the fixing pins on both sides of the positioning block (13) are movably connected to the positioning holes (16) on both sides of the positioning sleeve (15); and a wedge-shaped block (22) is slidably connected to the inside of the sliding groove (2).

2. A lockable automotive fastener according to claim 1, wherein: The two groups of trapezoidal blocks (21) are symmetrically arranged, and the wedge-shaped block (22) is slidably connected to the two groups of trapezoidal blocks (21) on both sides.

3. The lockable automotive fastener of claim 1, wherein: A lead screw (23) is vertically and threadedly connected to the middle of the wedge-shaped block (22); one end of the lead screw (23) is fixedly installed outside the sliding groove (2) and provided with a knob (24); and the lead screw (23) is rotatably connected to the inner wall of the sliding groove (2) through a bearing.

4. The lockable automotive fastener of claim 1, wherein: A receiving groove (27) is formed at one end of the positioning block (13) away from the screw rod (1), and the size of the receiving groove (27) is matched with that of the knob (24); and a cross groove (28) is formed at one side of the knob (24) away from the lead screw (23).

5. The lockable automotive fastener of claim 1, wherein: A spring (25) is arranged on one side of the trapezoidal block (21) away from the wedge-shaped block (22), and the spring (25) is sleeved outside the positioning pin (14).

6. The lockable automotive fastener of claim 1, wherein: Symmetrical guide grooves (26) are formed in both sides of the sliding groove (2), the positioning pin (14) is slidably connected to the guide groove (26), and the size of the positioning pin (14) is matched with that of the sliding groove (2).

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