Fastener

Abstract

The utility model discloses a fastener in the technical field of fasteners, which comprises a locking mechanism, the locking mechanism comprises a to-be-fixed piece and a bolt, the bolt is inserted on the to-be-fixed piece in a threaded manner, the top of the bolt is provided with an assembly groove, the outer side of the bolt is movably sleeved with an anti-loosening piece, and the anti-loosening piece downwards penetrates through the assembly groove and is inserted with the to-be-fixed piece; the limiting mechanism comprises a winding roller which is rotationally inserted into the top of the bolt, a circular groove is formed in the assembling groove in the direction facing the winding roller, and a limiting piece is movably arranged in the circular groove; during use, the bolt is conveniently fixed to a to-be-fixed part through insertion of the anti-loosening part and the to-be-fixed part, so that the possibility of loosening of the bolt is reduced, friction force between the hollow slab and the to-be-fixed part is conveniently increased through the anti-slip strips, and the possibility that the bolt drives the hollow slab to rotate is reduced; and secondary fastening can be conveniently conducted on the anti-loosening piece and the bolt through the auxiliary piece, and therefore the anti-loosening effect of the bolt is better.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener. Background Art

[0002] Many large and small parts are used in machines, equipment and other machinery, and a large part of them are fasteners. In some mechanical equipment with high requirements for safety and precision, it is necessary to ensure that the fixings will not loosen, otherwise the fixings will shift or loosen, resulting in failure to achieve the desired effect, or even danger.

[0003] Existing fixings are generally fastened by bolts, but the bolts lack a limiting component, so the bolts are easily loosened when subjected to vibration, which easily affects the fastening effect of the bolts. To this end, we propose a fastener to solve the above-mentioned problem. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a fastener that can solve the problem that the existing fixing parts are generally fastened by bolts, but the bolts lack limiting components, so the bolts are prone to loosening when subjected to vibration, thereby easily affecting the fastening effect of the bolts.

[0006] In order to solve the above technical problems, the utility model provides a fastener, which adopts the following technical solutions: comprising a locking mechanism, which comprises a piece to be fixed and a bolt, the bolt is threadedly inserted into the piece to be fixed, a mounting groove is provided on the top of the bolt, and an anti-loosening piece is provided on the outer movable sleeve of the bolt, and the anti-loosening piece passes through the mounting groove downward and is inserted into the piece to be fixed;

[0007] The limiting mechanism includes a winding roller rotatably inserted on the top of the bolt, a circular groove is opened in the assembly groove toward the winding roller, a limiting member is movably arranged in the circular groove, one end of the limiting member is movably inserted with the anti-loosening member, and the other end of the limiting member is fixedly connected with a steel cable, and the end of the steel cable away from the limiting member passes through the circular groove and is wound around the winding roller.

[0008] By adopting the above technical solution, the present solution firstly fixes the part to be fixed by bolts, then rotates the winding roller to wind up the steel cable, and then moves the limiting part by pulling the steel cable, so that the operator can put the anti-loosening part on the bolt, and fix the bolt on the part to be fixed by plugging the anti-loosening part into the part to be fixed, thereby reducing the possibility of bolt loosening.

[0009] Optionally, there are several assembly grooves, and the several assembly grooves are distributed in a ring shape and opened on the top of the bolt. A first spring is arranged in the assembly groove, and the upper end of the first spring abuts against the anti-loosening component.

[0010] By adopting the above technical scheme, the present scheme facilitates the assembly of the anti-loosening part through the cooperation of a plurality of assembly grooves, and facilitates the anti-loosening treatment of the bolt by the anti-loosening part passing through the assembly groove and being plugged into the part to be fixed. When the anti-loosening part loses its limit, the anti-loosening part is pushed upward by the first spring, thereby facilitating the operator to disassemble the anti-loosening part.

[0011] Optionally, the anti-loosening component includes a hollow plate, the shape of the hollow plate is hexagonal, the hollow plate is movably sleeved on the bolt, and a plurality of positioning rods are fixedly connected to the inner side of the hollow plate.

[0012] By adopting the above technical solution, the present solution facilitates the installation of the anti-loosening member on the bolt through the hollow plate, and facilitates the positioning of the bolt through the cooperation of a plurality of positioning rods.

[0013] Optionally, an anti-slip strip is fixedly connected to the lower end of the hollow plate, the anti-slip strip abuts against the top surface of the part to be fixed, and an auxiliary part is fixedly connected to the outer wall of the anti-loosening part, and the auxiliary part is movably sleeved on the part to be fixed.

[0014] By adopting the above technical solution, the present solution increases the friction between the hollow plate and the part to be fixed by means of the anti-slip strip, thereby reducing the possibility of the hollow plate being driven to rotate by the bolt, and facilitates secondary fixation of the anti-loosening part by means of the auxiliary part.

[0015] Optionally, the auxiliary part includes a groove plate, a movable plate is fixedly connected inside the groove plate, a second spring is fixedly connected to one end of the movable plate close to the groove plate, an end of the second spring away from the movable plate is fixedly connected to the inner wall of the groove plate, a bent portion is fixedly connected to one end of the movable plate away from the groove plate, and the movable plate is assembled on the part to be fixed via the bent portion.

[0016] By adopting the above technical solution, when the operator pulls the movable plate and the bending part to move, the second spring is stretched and deformed. When the operator puts the anti-loosening part on the bolt and loosens the movable plate, the second spring pulls the movable plate to reset and causes the bending part to buckle on the part to be fixed, thereby reducing the possibility of the anti-loosening part falling off.

[0017] Optionally, the number of the positioning rods is the same as the number of the assembly slots, the positioning rods are vertically inserted into the assembly slots and pass through the first spring, the lower ends of the positioning rods are movably connected to the top surface of the part to be fixed, and the positioning rods are L-shaped.

[0018] By adopting the above technical solution, the solution facilitates the anti-loosening effect of the anti-loosening part on the bolt by having a plurality of positioning rods simultaneously pass through the assembly groove and plug into the part to be fixed.

[0019] Optionally, the winding roller is vertically rotatable and plugged into the top of the bolt, and a circular ring is fixedly connected to the top of the winding roller.

[0020] By adopting the above technical solution, the present solution facilitates the operator to rotate the winding roller through the ring, thereby facilitating the winding of the steel cable.

[0021] Optionally, the limiting member includes a limiting rod, one end of which passes through the circular groove and is movably connected to the positioning rod, the end of the limiting rod close to the anti-loosening member is a beveled surface, the other end of the limiting rod is fixedly connected to a third spring, and the end of the third spring away from the limiting rod is fixedly connected to the inner wall of the circular groove.

[0022] By adopting the above technical solution, the present solution reels the steel cable by rotating the reel, and then the steel cable pulls the limit rod to move and causes the third spring to contract, thereby making it easier for the operator to put the anti-loosening piece on the bolt.

[0023] In summary, the utility model has at least one of the following beneficial effects: 1. The anti-loosening member is inserted into the member to be fixed, so that the bolt can be fixed on the member to be fixed, thereby reducing the possibility of the bolt loosening, and the anti-slip strip is used to increase the friction between the hollow plate and the member to be fixed, thereby reducing the possibility of the bolt driving the hollow plate to rotate, and the auxiliary member is used to facilitate the secondary tightening of the anti-loosening member and the bolt, so the anti-loosening effect of the bolt is better;

[0024] 2. First, put the anti-loosening part on the bolt. When the operator loosens the winding roller, the limit part is reset and plugged into the anti-loosening part, which makes it easier to fix the anti-loosening part on the bolt, thereby reducing the possibility of the anti-loosening part falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a three-dimensional expanded structural cross-sectional view of the utility model;

[0028] Figure 3 It is a partial three-dimensional expanded structural cross-sectional view of the utility model.

[0029] Description of reference numerals: 100, locking mechanism; 101, part to be fixed; 102, bolt; 103, assembly groove; 103a, first spring; 104, anti-loosening part; 104a, hollow plate; 104b, positioning rod; 104c, anti-slip strip; 104d, auxiliary part; 104d1, groove plate; 104d2, movable plate; 104d3, second spring; 104d4, bending part;

[0030] 200, limiting mechanism; 201, winding roller; 201a, circular ring; 202, circular groove; 203, limiting member; 203a, limiting rod; 203b, third spring; 204, steel cable. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 The utility model is described in further detail.

[0032] Embodiment 1, refer to Figure 1-3 In order to solve the problem that the existing fixing parts are generally fastened by bolts, but the bolts lack limiting components, so the bolts are easy to loosen when vibrated, which easily affects the fastening effect of the bolts, the utility model discloses a fastener, including a locking mechanism 100, which includes a part to be fixed 101 and a bolt 102, the bolt 102 is threadedly inserted into the part to be fixed 101, and the part to be fixed 101 is first fixed by the bolt 102.

[0033] An assembly groove 103 is provided at the top of the bolt 102, and an anti-loosening piece 104 is provided on the outer movable sleeve of the bolt 102. The anti-loosening piece 104 penetrates downwardly through the assembly groove 103 and is plugged into the part 101 to be fixed. By putting the anti-loosening piece 104 on the bolt 102, the anti-loosening piece 104 penetrates the assembly groove 103 and is plugged into the part 101 to be fixed, thereby facilitating the fixing of the bolt 102 on the part 101 to be fixed, thereby reducing the possibility of the bolt 102 loosening.

[0034] The limiting mechanism 200 includes a winding roller 201 rotatably plugged into the top of the bolt 102, a circular groove 202 is opened in the assembly groove 103 toward the winding roller 201, a limiting member 203 is movably arranged in the circular groove 202, one end of the limiting member 203 is movably plugged into the anti-loosening member 104, the limiting member 203 includes a limiting rod 203a, one end of the limiting rod 203a passes through the circular groove 202 and is movably plugged into the positioning rod 104b, the end of the limiting rod 203a close to the anti-loosening member 104 is a beveled surface, the other end of the limiting rod 203a is fixedly connected to a third spring 203b, and the end of the third spring 203b away from the limiting rod 203a is fixedly connected to the inner wall of the circular groove 202.

[0035] The steel cable 204 is wound by rotating the winding roller 201, and then the steel cable 204 pulls the limit rod 203a to move and causes the third spring 203b to contract, thereby facilitating the operator to put the anti-loosening part 104 on the bolt 102. When the operator releases the winding roller 201, the limit rod 203a loses the tension. At this time, the third spring 203b restores its deformation and pushes the limit rod 203a to reset and connect with the anti-loosening part 104, thereby facilitating the anti-loosening part 104 to be fixed on the bolt 102, thereby reducing the possibility of the anti-loosening part 104 falling off.

[0036] The other end of the limit member 203 is fixedly connected to a steel cable 204, and the end of the steel cable 204 away from the limit member 203 passes through the circular groove 202 and is wound around the winding roller 201. The winding roller 201 rotates vertically and is plugged into the top of the bolt 102. The top of the winding roller 201 is fixedly connected to a circular ring 201a, which makes it convenient for the operator to rotate the winding roller 201 through the circular ring 201a, thereby facilitating the winding of the steel cable 204.

[0037] The specific working principle is: first, the part to be fixed 101 is fixed by the bolt 102, and then the winding roller 201 is rotated to wind up the steel cable 204, and then the limit member 203 is pulled by the steel cable 204 to move, so that the operator can put the anti-loosening member 104 on the bolt 102, and the anti-loosening member 104 is plugged into the part to be fixed 101 to facilitate fixing the bolt 102 on the part to be fixed 101, thereby reducing the possibility of loosening of the bolt 102.

[0038] When the operator releases the winding roller 201, the limit member 203 is reset and plugged into the anti-loosening member 104, thereby facilitating the anti-loosening member 104 to be fixed on the bolt 102, and the anti-loosening member 104 is plugged into the member to be fixed 101 to facilitate the fixing of the bolt 102 on the member to be fixed 101, thereby reducing the possibility of the bolt 102 loosening.

[0039] Example 2, refer to Figure 2-3 In order to solve the problem that some existing fasteners are difficult to disassemble after being locked, in this embodiment, based on the same concept as the above-mentioned embodiment 1, the fastener further includes:

[0040] There are several assembly grooves 103, and several assembly grooves 103 are distributed in a ring shape and opened on the top of the bolt 102. A first spring 103a is arranged in the assembly groove 103, and the upper end of the first spring 103a abuts against the anti-loosening part 104. The anti-loosening part 104 is convenient to assemble through the cooperation of several assembly grooves 103. The anti-loosening part 104 passes through the assembly groove 103 and is plugged into the part to be fixed 101, which facilitates the anti-loosening treatment of the bolt 102. When the operator rotates the winding roller 201 to wind the steel cable 204, the limit member 203 is pulled by the steel cable 204 to move and separate from the anti-loosening part 104. At this time, the anti-loosening part 104 loses its limit, and then the anti-loosening part 104 is pushed upward by the first spring 103a, so that the operator can disassemble the anti-loosening part 104 conveniently.

[0041] The anti-loosening member 104 includes a hollow plate 104a, which is hexagonal in shape. The hollow plate 104a is movably sleeved on the bolt 102. A plurality of positioning rods 104b are fixedly connected to the inner side of the hollow plate 104a. The anti-loosening member 104 is conveniently sleeved on the bolt 102 through the hollow plate 104a, and the bolt 102 is conveniently positioned through the cooperation of the plurality of positioning rods 104b, thereby reducing the possibility of the spiral automatically rotating and loosening.

[0042] The number of positioning rods 104b is the same as the number of assembly slots 103. The positioning rods 104b are vertically inserted into the assembly slots 103 and pass through the first spring 103a. The lower ends of the positioning rods 104b are movably connected to the top surface of the part to be fixed 101. The positioning rods 104b are L-shaped. By having several positioning rods 104b pass through the assembly slots 103 at the same time and be connected to the part to be fixed 101, the anti-loosening effect of the anti-loosening part 104 on the bolt 102 is facilitated, thereby reducing the possibility of loosening of the bolt 102.

[0043] The specific working principle is: the steel cable 204 is wound up by rotating the winding roller 201, and then the limit member 203 is pulled by the steel cable 204 to move, so that it is convenient for the operator to put the anti-loosening member 104 on the bolt 102; when the operator releases the winding roller 201, the limit member 203 is reset and plugged with the anti-loosening member 104, so that it is convenient to fix the anti-loosening member 104 on the bolt 102.

[0044] When the operator rotates the winding roller 201 to wind up the steel cable 204, the steel cable 204 pulls the limiting member 203 to move and separate from the anti-loosening member 104. At this time, the anti-loosening member 104 loses its limit, and then the anti-loosening member 104 is pushed upward by the first spring 103a, thereby facilitating the operator to disassemble the anti-loosening member 104 and then facilitate the disassembly of the bolt 102.

[0045] Example 3, refer to Figure 2-3In order to solve the problem of poor anti-loosening effect of some existing fasteners in this embodiment, based on the same concept as the above-mentioned embodiment 1, the fastener further includes:

[0046] The lower end of the hollow plate 104a is fixedly connected with an anti-slip strip 104c, and the anti-slip strip 104c abuts against the top surface of the part to be fixed 101. The outer wall of the anti-loosening part 104 is fixedly connected with an auxiliary part 104d, and the auxiliary part 104d is movably sleeved on the part to be fixed 101. The anti-slip strip 104c is used to increase the friction between the hollow plate 104a and the part to be fixed 101, thereby reducing the possibility of the bolt 102 driving the hollow plate 104a to rotate, and the auxiliary part 104d is used to facilitate the secondary fixation of the anti-loosening part 104, thereby further reducing the possibility of the bolt 102 loosening.

[0047] The auxiliary member 104d includes a groove plate 104d1, a movable plate 104d2 is fixedly connected inside the groove plate 104d1, a second spring 104d3 is fixedly connected to one end of the movable plate 104d2 close to the groove plate 104d1, an end of the second spring 104d3 away from the movable plate 104d2 is fixedly connected to the inner wall of the groove plate 104d1, and a bent portion 104d4 is fixedly connected to one end of the movable plate 104d2 away from the groove plate 104d1. The movable plate 104d2 is assembled on the to-be-fixed member 101 through the bent portion 104d4, and when the operator pulls the movable plate 104d2 and the bent portion 104d4 to move, the second spring 104d3 is stretched and deformed. When the operator puts the anti-loosening member 104 on the bolt 102 and releases the movable plate 104d2, the second spring 104d3 pulls the movable plate 104d2 to return to its original position and the bent portion 104d4 is buckled on the to-be-fixed member 101, thereby reducing the possibility of the anti-loosening member 104 falling off.

[0048] The specific working principle is: when the operator pulls the movable plate 104d2 and the bent portion 104d4 to move, the second spring 104d3 is stretched and deformed. When the operator puts the anti-loosening member 104 on the bolt 102 and then loosens the movable plate 104d2, the second spring 104d3 pulls the movable plate 104d2 to reset and causes the bent portion 104d4 to buckle on the part to be fixed 101. At the same time, the anti-slip strip 104c is used to increase the friction between the hollow plate 104a and the part to be fixed 101, thereby reducing the possibility of the bolt 102 driving the hollow plate 104a to rotate; and the anti-loosening member 104 is plugged into the part to be fixed 101 to facilitate fixing the bolt 102 on the part to be fixed 101, thereby reducing the possibility of the bolt 102 loosening.

[0049] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fastener, characterized in that: include, A locking mechanism (100) comprises a part to be fixed (101) and a bolt (102), wherein the bolt (102) is threadedly inserted into the part to be fixed (101), a mounting groove (103) is provided at the top of the bolt (102), an anti-loosening member (104) is provided on the outer movable sleeve of the bolt (102), and the anti-loosening member (104) passes downward through the mounting groove (103) and is plugged into the part to be fixed (101); The limiting mechanism (200) comprises a winding roller (201) rotatably plugged into the top of the bolt (102); a circular groove (202) is provided in the assembly groove (103) in the direction of the winding roller (201); a limiting member (203) is movably provided in the circular groove (202); one end of the limiting member (203) is movably plugged into the anti-loosening member (104); the other end of the limiting member (203) is fixedly connected to a steel cable (204); and one end of the steel cable (204) away from the limiting member (203) passes through the circular groove (202) and is wound around the winding roller (201).

2. A fastener according to claim 1, characterized in that: There are a plurality of assembly grooves (103), which are arranged in a ring shape on the top of the bolt (102). A first spring (103a) is arranged in the assembly groove (103), and the upper end of the first spring (103a) is in contact with the anti-loosening component (104).

3. A fastener according to claim 2, characterized in that: The anti-loosening component (104) comprises a hollow plate (104a), the hollow plate (104a) is hexagonal in shape, the hollow plate (104a) is movably sleeved on the bolt (102), and a plurality of positioning rods (104b) are fixedly connected to the inner side of the hollow plate (104a).

4. A fastener according to claim 3, characterized in that: The lower end of the hollow plate (104a) is fixedly connected to an anti-slip strip (104c), the anti-slip strip (104c) abuts against the top surface of the part to be fixed (101), and the outer wall of the anti-loosening part (104) is fixedly connected to an auxiliary part (104d), and the auxiliary part (104d) is movably sleeved on the part to be fixed (101).

5. A fastener according to claim 4, characterized in that: The auxiliary component (104d) comprises a groove plate (104d1), a movable plate (104d2) is fixedly connected inside the groove plate (104d1), an end of the movable plate (104d2) close to the groove plate (104d1) is fixedly connected to a second spring (104d3), an end of the second spring (104d3) away from the movable plate (104d2) is fixedly connected to the inner wall of the groove plate (104d1), an end of the movable plate (104d2) away from the groove plate (104d1) is fixedly connected to a bending portion (104d4), and the movable plate (104d2) is assembled on the component to be fixed (101) via the bending portion (104d4).

6. A fastener according to claim 3, characterized in that: The number of the positioning rods (104b) is the same as the number of the assembly slots (103); the positioning rods (104b) are vertically inserted into the assembly slots (103) and pass through the first springs (103a); the lower ends of the positioning rods (104b) are movably plugged into the top surface of the part to be fixed (101); and the positioning rods (104b) are L-shaped.

7. A fastener according to claim 1, characterized in that: The winding roller (201) is vertically rotatably plugged into the top of the bolt (102), and a circular ring (201a) is fixedly connected to the top of the winding roller (201).

8. A fastener according to claim 1, characterized in that: The limiting member (203) comprises a limiting rod (203a), one end of the limiting rod (203a) passes through the circular groove (202) and is movably plugged into the positioning rod (104b), one end of the limiting rod (203a) close to the anti-loosening member (104) is a beveled surface, the other end of the limiting rod (203a) is fixedly connected to a third spring (203b), and one end of the third spring (203b) away from the limiting rod (203a) is fixedly connected to the inner wall of the circular groove (202).

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