Fastening screw with loose threads easy to take out

Abstract

The fastening screw comprises a screw body and a screwing groove formed in the center of the screw, a clamping structure is arranged on the screwing groove and comprises a movable wall, the opposite sides of the movable wall are arranged on the screwing groove, and the movable wall is bent outwards along the edges of the top end and the bottom end of the screwing groove and rotationally connected to the screwing groove; an anti-bending structure is arranged between the screw body and the movable wall in an abutting mode, and a control structure for driving the anti-bending structure and the movable wall to be staggered is arranged at the bottom end of the screwing groove. The fastening screw with loose threads has the effect that the fastening screw with loose threads can be conveniently screwed and taken out.

Description

Technical Field

[0001] The present application relates to the technical field of fastening screws, and in particular to a fastening screw with sliding threads that is easy to remove. Background Art

[0002] At present, in order to fix certain parts on industrial equipment, hexagon socket full-thread screws are usually used as fastening screws. This type of screw is short in overall length and is not restricted in length, so it can be well used for fastening parts.

[0003] However, many devices are exposed to the outdoors, and the fastening screws thereon are easily rusted and corroded because the hexagonal parts are exposed to the air. As a result, when the equipment is maintained and repaired, the hexagonal parts are easily loose, making it impossible to remove the fastening screws. At this time, the fastening screws cannot be removed unless welding or tapping tools of specific sizes are used. Therefore, the applicant has proposed a fastening screw that can be easily removed when the screws are loose. Utility Model Content

[0004] In order to facilitate the removal of a fastening screw with a sliding thread, the present application provides a fastening screw with a sliding thread that is easy to remove.

[0005] The present application provides a sliding thread easy-to-remove fastening screw adopts the following technical solution:

[0006] A sliding-thread, easy-to-remove fastening screw comprises a screw body and a screw connection groove opened in the center of the screw, a clamping structure is provided on the screw connection groove, the clamping structure comprises a movable wall, the opposite side of the movable wall is arranged on the screw connection groove, and the movable wall is bent outward along the edges of the top end and the bottom end of the screw connection groove respectively and is rotatably connected to the screw connection groove; an anti-bending structure is provided between the screw body and the movable wall, and a control structure for driving the anti-bending structure and the movable wall to be misaligned is provided at the bottom end of the screw connection groove.

[0007] By adopting the above technical solution, the step generated between the movable wall and the screwing groove is utilized so that the hexagonal screw can obtain a temporary fulcrum, while the strength of the fastening screw is not damaged, so that the construction personnel can conveniently remove it without the aid of additional tapping tools.

[0008] Preferably, the anti-bending structure includes abutment blocks and a connecting turntable, the abutment blocks are respectively arranged corresponding to the left and right ends of the movable wall, and the abutment blocks are accommodated between the movable wall and the screw body; the connecting turntables are respectively accommodated and rotatably connected between the bottom end of the screwing groove and the screw body; the abutment blocks are respectively fixed to the corresponding connecting turntables.

[0009] By adopting the above technical solution, the abutment block cooperates with the connecting turntable, so that the abutment block can freely switch positions and control the abutment and dislocation of the movable wall. The structure is compact and suitable for screws of various sizes.

[0010] Preferably, the control structure includes a lifting wall, a guide rail and a slider, the lifting wall is lifted and connected to the bottom end of the screwing groove, and the connecting turntable is rotatably connected to the side of the lifting wall opposite to the screwing groove; the slider is fixed to the side of the connecting turntable close to the abutment block; the guide rail is opened on the inner wall of the screw body and corresponds to the slider, and the guide rail extends from the side close to the movable wall gradually to the direction away from the two sides of the movable wall and away from the side of the screwing groove, and the slider is accommodated and slidably connected to the guide rail.

[0011] Preferably, a support structure is provided on the screw body, the support structure includes a support plate and an energy absorption box, the support plates extend laterally and are accommodated and fixed between the movable wall and the screw body, and the support plate is located at one end of the abutment block corresponding to the movable wall; the energy absorption box is accommodated and fixed between the lifting wall and the screw body.

[0012] Preferably, the clamping structure also includes a clearance cavity; the clearance cavity is opened between the movable wall and the outer wall of the screw body, and the clearance cavity is arranged corresponding to the rotation direction of the movable wall; the clearance cavity is narrow on the side close to the rotating shaft of the movable wall and wide on the side close to the rotating shaft.

[0013] Preferably, bending guide grooves are symmetrically provided at the corners of the energy absorption box.

[0014] By adopting the above technical solution, the energy absorption box utilizes the bending guide groove to have good ability to resist lateral torque and is convenient for longitudinal collapse and lifting.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. By using the step between the movable wall and the screwing groove, the hexagonal screw can obtain a temporary fulcrum without destroying the strength of the fastening screw, so that the construction workers can easily remove it without the help of additional tapping tools;

[0017] 2. The cooperation between the abutment block and the connecting turntable enables the abutment block to switch positions freely and control the abutment and dislocation of the movable wall. The structure is compact and suitable for screws of various sizes;

[0018] 3. The energy absorption box utilizes the bending guide groove to have good ability to resist lateral torque and facilitate longitudinal collapse and lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional view of an embodiment of the present application;

[0020] Figure 2 is a half-section view of an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram showing the internal structure of an embodiment of the present application.

[0022] Explanation of the accompanying drawings: 1. Screw body; 2. Screw connection groove; 3. Clamping structure; 31. Movable wall; 32. Make way cavity; 4. Anti-bending structure; 41. Abutment block; 42. Connecting turntable; 5. Control structure; 51. Lifting wall; 52. Guide rail; 53. Slider; 6. Support structure; 61. Support plate; 62. Energy absorption box; 7. Bending guide groove. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings.

[0024] The present application embodiment discloses a fastening screw with a sliding thread and easy removal, referring to Figure 1 , 2 , including a screw body 1 and a screw connection groove 2 opened in the center of the screw; a clamping structure 3 is provided on the screw connection groove 2, and the clamping structure 3 includes a movable wall 31 and a clearance cavity 32, the movable wall 31 is arranged on the opposite side of the screw connection groove 2, and the movable wall 31 is bent outward along the edges of the top and bottom ends of the screw connection groove 2 respectively and is rotatably connected to the screw connection groove 2; the clearance cavity 32 is opened between the movable wall 31 and the outer side wall of the screw body 1, and the clearance cavity 32 is arranged corresponding to the rotation direction of the movable wall 31; the clearance cavity 32 is narrow on the side close to the rotating shaft of the movable wall 31, and is wide on the side close to the rotating shaft; when the screw connection groove 2 is slipped, the opposite side movable wall 31 is rotated, and a step for the hexagonal wrench to be clamped is formed between the movable wall 31 and the screw connection groove 2.

[0025] Reference Figure 1 , 2 , an anti-bending structure 4 and a supporting structure 6 for maintaining the position of the movable wall 31 are provided in the giving way cavity 32, the anti-bending structure 4 includes abutment blocks 41 and a connecting turntable 42, the abutment blocks 41 are respectively provided corresponding to the left and right ends of the movable wall 31, and the abutment blocks 41 are accommodated between the movable wall 31 and the screw body 1; the connecting turntable 42 is respectively accommodated and rotatably connected between the bottom end of the screwing groove 2 and the screw body 1; the abutment blocks 41 are respectively fixed to the corresponding connecting turntables 42.

[0026] Reference Figure 2 , 3 The connecting turntable 42 is driven to rotate through the control structure 5, and the control structure 5 includes a lifting wall 51, a guide rail 52 and a slider 53; the supporting structure 6 includes a supporting plate 61 and an energy absorbing box 62, the lifting wall 51 is lifted and connected to the bottom end of the screwing groove 2, and the energy absorbing box 62 is respectively accommodated and fixed between the lifting wall 51 and the screw body 1, and the corners of the energy absorbing box 62 are symmetrically provided with bending guide grooves 7.

[0027] Reference Figure 1 , 3The connecting turntable 42 is rotatably connected to the side of the lifting wall 51 opposite to the screwing groove 2; the sliding block 53 is fixed to the side of the connecting turntable 42 close to the abutment block 41; the guide rail 52 is opened on the inner wall of the screw body 1 and is arranged corresponding to the sliding block 53, and the guide rail 52 gradually extends from the side close to the movable wall 31 to the direction away from the two sides of the movable wall 31 and away from the screwing groove 2. The sliding block 53 is accommodated and slidably connected to the guide rail 52.

[0028] Reference Figure 2 , 3 The support plates 61 extend transversely and are fixed between the movable wall 31 and the screw body 1 , and the support plates 61 are located at one end of the movable wall 31 corresponding to the abutment block 41 , thereby enhancing the lateral bending resistance of the movable wall 31 and allowing the movable wall 31 to bend longitudinally.

[0029] The working process of the present application is as follows: when the screw body 1 is screwed normally, the abutment block 41 and the support plate 61 jointly support the movable plate, so that the hexagonal wrench can abut and drive the screw body 1 to rotate; when the screwing groove 2 slips, the lifting wall 51 is hammered downward, and the energy absorption box 62 collapses along the bending guide groove 7. The lifting wall 51 descends and drives the slider 53 to rotate along the guide rail 52, so that the abutment block 41 and the movable wall 31 are misaligned; at this time, the movable wall 31 is pried with a hexagonal wrench, and the movable wall 31 rotates and is accommodated in the makeshift cavity 32. At this time, a step is formed between the screwing groove 2 of the movable wall 31, which is clamped on the hexagonal wrench, so that the hexagonal wrench can drive the screw body 1 to rotate.

[0030] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sliding thread easy-to-remove fastening screw, comprising a screw body (1) and a screw connection groove (2) provided in the center of the screw, characterized in that: The screwing groove (2) is provided with a clamping structure (3), the clamping structure (3) comprising a movable wall (31), the movable wall (31) being arranged on the opposite side of the screwing groove (2), and the movable wall (31) being bent outwardly along the edges of the top end and the bottom end of the screwing groove (2) and being rotatably connected to the screwing groove (2); an anti-bending structure (4) is provided between the screw body (1) and the movable wall (31), and a control structure (5) for driving the anti-bending structure (4) and the movable wall (31) to be misaligned is provided at the bottom end of the screwing groove (2).

2. The sliding thread easy-to-remove fastening screw according to claim 1, characterized in that: The anti-bending structure (4) comprises a contact block (41) and a connecting turntable (42); the contact blocks (41) are respectively arranged corresponding to the left and right ends of the movable wall (31), and the contact blocks (41) are accommodated between the movable wall (31) and the screw body (1); the connecting turntable (42) is respectively accommodated and rotatably connected between the bottom end of the screwing groove (2) and the screw body (1); the contact blocks (41) are respectively fixed to the corresponding connecting turntables (42).

3. The sliding thread easy-to-remove fastening screw according to claim 2, characterized in that: The control structure (5) comprises a lifting wall (51), a guide rail (52) and a slider (53); the lifting wall (51) is liftingly connected to the bottom end of the screwing groove (2); the connecting turntable (42) is rotatably connected to the side of the lifting wall (51) opposite to the screwing groove (2); the slider (53) is fixed to the side of the connecting turntable (42) close to the abutment block (41); the guide rail (52) is arranged on the inner side wall of the screw body (1) and corresponds to the slider (53); the guide rail (52) gradually extends from the side close to the movable wall (31) to the direction away from both sides of the movable wall (31) and away from the screwing groove (2); the slider (53) is accommodated and slidably connected to the guide rail (52).

4. The sliding thread easy-to-remove fastening screw according to claim 3, characterized in that: The screw body (1) is provided with a support structure (6), the support structure (6) comprising a support plate (61) and an energy absorption box (62), the support plates (61) respectively extending transversely and being accommodated and fixed between the movable wall (31) and the screw body (1), and the support plates (61) are located at one end of the movable wall (31) opposite to the abutment block (41); the energy absorption box (62) is respectively accommodated and fixed between the lifting wall (51) and the screw body (1).

5. The sliding thread easy-to-remove fastening screw according to claim 1, characterized in that: The clamping structure (3) further comprises a clearance cavity (32); the clearance cavity (32) is arranged between the movable wall (31) and the outer wall of the screw body (1), and the clearance cavity (32) is arranged corresponding to the rotation direction of the movable wall (31); the clearance cavity (32) is narrow on the side close to the rotating shaft of the movable wall (31) and wide on the side close to the rotating shaft.

6. The sliding thread easy-to-remove fastening screw according to claim 4, characterized in that: Bending guide grooves (7) are symmetrically arranged at the corners of the energy absorption box (62).

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