Bidirectional fastener

Abstract

The utility model discloses a bi-directional fastener, which relates to the technical field of fasteners and comprises a shell, a plurality of connecting blocks are respectively and fixedly connected to positions close to two ends inside the shell, hooks are positioned at two ends outside a bi-directional threaded sleeve, and the hooks are in sliding connection with one end outside the shell through threaded sliding rods and the bi-directional threaded sleeve. A bolt is rotationally connected to the center of one side of the outer wall of the shell and rotationally connected with the two-way threaded sleeve, and a loosening piece is fixedly connected to one side of the outer wall of the bolt. When the pull rope needs to be quickly released, only the bolt needs to be pushed towards the outer surface of the shell, and when the pull rope needs to be fastened, only the bolt needs to be pulled towards the outside of the shell, the loosening piece is clamped with the hexagonal groove in the driving tooth through the positioning ball and the positioning groove, then the bolt is rotated, and the pull rope can be tightened. Therefore, the device can realize quick release of the pull rope through mutual cooperation of the positioning ball and the positioning groove.

Description

Technical Field

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

[0002] A two-way fastener is a mechanical element mainly used to connect or fix two or more components. Its feature is that it can provide fastening force in two directions, making the connection more stable and firm. There are many types of two-way fasteners, including bolts, screws, nuts, washers, etc. The working principle of the two-way fastener mainly uses the rotation of the thread to generate axial force to achieve the fastening effect. During installation, tools such as wrenches and screwdrivers are usually required for operation. The materials of the two-way fasteners mainly include carbon steel, stainless steel, copper, aluminum, etc. Different materials are suitable for different environments and requirements. Two-way fasteners are widely used in various fields such as mechanical equipment, building structures, and automobile manufacturing. Their existence greatly improves work efficiency and reduces the time and cost of maintenance and replacement.

[0003] According to the search, the Chinese patent document, publication number: CN219345386U, discloses a fastener that can be tightened bidirectionally, which relates to the technical field of fasteners. The fastener that can be tightened bidirectionally includes a fastening ring. A forward threaded rod is connected to the left side of the fastening ring, and the other end of the forward threaded rod is welded to the inner fixing frame. The inner fixing frame is in a C shape, and a sliding threaded rod is provided on each side of the inner fixing frame. The other end of the fastening ring is connected to a reverse threaded rod, and the other end of the reverse threaded rod is welded to the outer fixing frame; when it is necessary to tighten or loosen, the forward threaded rod and the reverse threaded rod respectively pull the inner fixing frame and the outer fixing frame outward or inward. After adjusting the tightening degree, the two fixing nuts are connected and fixed to the two sliding threaded rods, and the two arms of the outer fixing frame are locked and clamped to ensure that the inner fixing frame and the outer fixing frame will not be pulled out further, ensuring the stability of the entire fastener during use.

[0004] When using this two-way tightening fastener, since there is a lack of a mechanism for quickly releasing the tension inside the fixture, in case of an emergency, such as when it is necessary to quickly release the fixed state, the mechanism will not be able to react quickly, increasing the safety risk. In view of this, we provide a two-way fastener. Content of the Utility Model

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a two-way fastener.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A bidirectional fastener includes a housing. Inside the housing, near both ends, a plurality of connecting blocks are respectively fixedly connected. On the arc surface corresponding to one side of the outer wall of the connecting block, a bidirectional threaded sleeve is rotatably connected. At both ends inside the bidirectional threaded sleeve, a plurality of threaded sliding rods are respectively rotatably connected. At one end of the outer wall of the threaded sliding rod, a hook is fixedly connected. The hook is located at both outer ends of the bidirectional threaded sleeve, and the hook is slidably connected to one outer end of the housing through the threaded sliding rod and the bidirectional threaded sleeve. At the center of one side of the outer wall of the housing, a bolt is rotatably connected, and the bolt is rotatably connected to the bidirectional threaded sleeve. On one side of the outer wall of the bolt, a slackening member is fixedly connected.

[0007] In the above, on the center of the outer wall of the bidirectional threaded sleeve, a meshing tooth is rotatably connected. On one side of the outer wall of the meshing tooth, a driving tooth is rotatably connected. One side of the inner wall of the driving tooth is mutually clamped with one end of the outer wall of the slackening member.

[0008] In the above, on both sides of the outer wall of the housing, a plurality of sliding rails are respectively fixedly connected. At one end of the outer wall of the hook, a sliding frame is fixedly connected, and one end inside the sliding frame is slidably connected to one end of the outer wall of the sliding frame.

[0009] In the above, the sliding rails are located on both sides inside the sliding frame. The hook is slidably connected to one outer end of the housing through the bolt, the sliding rails and the bidirectional threaded sleeve.

[0010] In the above, at the edge of one end inside the slackening member, a plurality of fixing springs are respectively fixedly connected. At the end of the outer wall of the fixing spring away from the slackening member, a positioning ball is fixedly connected. The positioning ball is slidably connected to the inner edge of the slackening member.

[0011] In the above, at the center of the inner wall of the driving tooth, a plurality of positioning grooves are respectively formed, and the positioning grooves correspond to the positioning balls.

[0012] In the above, one side of the inner wall of the driving tooth is mutually clamped with one end of the outer wall of the slackening member through the positioning groove, and one side inside the driving tooth is slidably connected to the end of the slackening member away from the positioning ball.

[0013] Compared with the prior art, the bidirectional fastener has the following beneficial effects:

[0014] 1. When the utility model is in use, after the tension ropes are respectively connected to the hooks at both ends outside the housing, since a plurality of threaded sliding rods are respectively rotatably connected to both ends inside the bidirectional threaded sleeve through threads, one end of the threaded sliding rod is fixedly connected to the sliding frame. After the threaded sliding rod is fixed to the sliding frame, through the sliding rails on both sides of the inner wall of the housing, after sliding at one end inside the housing, the bolt on one side of the outer wall of the housing is rotated, so that the driving gear is driven to rotate, and the meshing gear is driven to rotate through the driving gear, so that the bidirectional threaded sleeve pulls the threaded sliding rods at both ends inside the housing towards the center of the housing through the internal threads, so that the hook drives the tension rope to slide along the outer wall of the sliding rail and tightens the tension rope. Therefore, the device cooperates with the bolt and the bidirectional threaded sleeve to realize the tightening of the tension rope.

[0015] 2. When the utility model needs to quickly release the tension rope, only need to push the bolt towards the outer surface of the housing, so that the hexagonal end on the outer wall of the slack part is disengaged from the hexagonal groove on the inner wall of the driving gear, the tension rope pulls the threaded sliding rod towards both sides of the housing, and at the same time rotates the bidirectional threaded sleeve, which can play a role in releasing the tension rope. When the tension rope needs to be tightened, only need to pull the bolt towards the outside of the housing, so that the slack part is clamped with the hexagonal groove inside the driving gear through the positioning ball and the positioning groove, and then rotate the bolt to tighten the tension rope. Therefore, the device can realize the quick release of the tension rope by the cooperation of the positioning ball and the positioning groove.

[0016] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the bidirectional threaded sleeve of the present utility model;

[0019] Figure 3 is a partial sectional split three-dimensional structural schematic diagram of the bolt of the present utility model;

[0020] Figure 4 is the present utility model Figure 3 The partial three-dimensional structural schematic diagram of A in.

[0021] In the figure: 1. Housing; 101. Connecting block; 102. Bidirectional threaded sleeve; 103. Threaded sliding rod; 104. Hook; 105. Meshing gear; 106. Driving gear; 107. Sliding rail; 108. Sliding frame; 2. Bolt; 201. Slack part; 202. Fixed spring; 203. Positioning ball; 204. Positioning groove. Detailed implementation mode

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 - 4 shown, the present utility model provides a technical solution: a bidirectional fastener, including a housing 1. A plurality of connecting blocks 101 are respectively fixedly connected near both ends inside the housing 1. A bidirectional threaded sleeve 102 is rotatably connected to the arc surface on one corresponding side of the outer wall of the connecting block 101. A plurality of threaded slide rods 103 are respectively rotatably connected to both ends inside the bidirectional threaded sleeve 102. A hook 104 is fixedly connected to one end of the outer wall of the threaded slide rod 103. The hook 104 is located at both ends outside the bidirectional threaded sleeve 102. The hook 104 is slidably connected to one end outside the housing 1 through the threaded slide rod 103 and the bidirectional threaded sleeve 102. A bolt 2 is rotatably connected to the center of one side of the outer wall of the housing 1. The bolt 2 is rotatably connected to the bidirectional threaded sleeve 102. A relaxation member 201 is fixedly connected to one side of the outer wall of the bolt 2.

[0024] When in use, after the tension ropes are respectively connected to the hooks 104 at both ends outside the housing 1, since a plurality of threaded slide rods 103 are respectively rotatably connected to both ends inside the bidirectional threaded sleeve 102 through threads, one end of the threaded slide rod 103 is fixedly connected to the slide frame 108. After the threaded slide rod 103 is fixed to the slide frame 108, through the slide rails 107 on both sides of the inner wall of the housing 1, it slides at one end inside the housing 1. Then, the bolt 2 on one side of the outer wall of the housing 1 is rotated, so that the driving gear 106 is driven to rotate, and the meshing gear 105 is driven to rotate through the driving gear 106. The bidirectional threaded sleeve 102 pulls the threaded slide rods 103 at both ends inside the housing 1 towards the center of the housing 1 through the internal threads, so that the hook 104 drives the tension rope to slide along the outer wall of the slide rail 107 and tightens the tension rope. When it is necessary to quickly release the tension rope, only need to push the bolt 2 towards the outer surface of the housing 1, so that the hexagonal end on the outer wall of the relaxation member 20, is separated from the hexagonal groove on the inner wall of the driving gear 106. The tension rope pulls the threaded slide rod 103 towards both sides of the housing 1, and at the same time rotates the bidirectional threaded sleeve 102, which can release the tension rope. When it is necessary to fasten the tension rope, only need to pull the bolt 2 towards the outside of the housing 1. After the relaxation member 201 is clamped with the hexagonal groove inside the driving gear 106 through the positioning ball 203 and the positioning groove 204, rotate the bolt 2, and the tension rope can be tightened. Thus, the device can realize the quick release of the tension rope by the cooperation of the positioning ball 203 and the positioning groove

[0025] As shown Figures 1 - 2 In the figure, a meshing tooth 105 is rotatably connected to the center of the outer wall of the bidirectional threaded sleeve 102, and a driving tooth 106 is rotatably connected to one side of the outer wall of the meshing tooth 105. One side of the inner wall of the driving tooth 106 is engaged with one end of the outer wall of the slack member 201. A plurality of slide rails 107 are respectively fixedly connected to both sides of the outer wall of the housing 1. One end of the outer wall of the hook 104 is fixedly connected with a carriage 108, and one end of the inner part of the carriage 108 is slidably connected to one end of the outer wall of the carriage 108. The slide rails 107 are located on both sides inside the carriage 108. The hook 104 is slidably connected to one end of the outside of the housing 1 through the bolt 2, the slide rails 107 and the bidirectional threaded sleeve 102.

[0026] When in use, after the tension ropes are respectively connected to the hooks 104 at both ends of the outside of the housing 1, since a plurality of threaded slide rods 103 are respectively rotatably connected to both ends of the inside of the bidirectional threaded sleeve 102 through threads, one end of the threaded slide rod 103 is fixedly connected to the carriage 108. After the threaded slide rod 103 is fixed to the carriage 108, through the slide rails 107 on both sides of the inner wall of the housing 1, after sliding at one end inside the housing 1, the bolt 2 on one side of the outer wall of the housing 1 is rotated, so as to drive the driving tooth 106 to rotate, and drive the meshing tooth 105 to rotate through the driving tooth 106, so that the bidirectional threaded sleeve 102 pulls the threaded slide rods 103 at both ends of the inside to the center of the inside of the housing 1 through the internal threads, so that the hook 104 drives the tension rope to slide along the outer wall of the slide rail 107 and tighten the tension rope. Thus, the device cooperates with the bolt 2 and the bidirectional threaded sleeve 102 to realize the tightening of the tension rope.

[0027] As shown Figures 1 - 4 In the figure, a plurality of fixing springs 202 are respectively fixedly connected to the edge of one end inside the slack member 201, and a positioning ball 203 is fixedly connected to one end of the outer wall of the fixing spring 202 away from the slack member 201. The positioning ball 203 is slidably connected to the inner edge of the slack member 201. A plurality of positioning grooves 204 are respectively formed in the center of the inner wall of the driving tooth 106, and the positioning grooves 204 correspond to the positioning balls 203. One side of the inner wall of the driving tooth 106 is engaged with one end of the outer wall of the slack member 201 through the positioning groove 204, and one side inside the driving tooth 106 is slidably connected to one end of the slack member 201 away from the positioning ball 203.

[0028] When it is necessary to quickly release the tension rope, just push the bolt 2 towards the outer surface of the housing 1, so that the hexagonal end of the outer wall of the slack member 201 is disengaged from the hexagonal groove on the inner wall of the driving gear 106. The tension rope pulls the threaded slide rod 103 towards both sides of the housing 1, and at the same time rotates the bidirectional threaded sleeve 102, which can release the tension rope. When it is necessary to tighten the tension rope, just pull the bolt 2 towards the outside of the housing 1. After the slack member 201 is clamped with the hexagonal groove inside the driving gear 106 through the positioning ball 203 and the positioning groove 204, rotate the bolt 2 to tighten the tension rope. Thus, the device can realize the quick release of the tension rope by the cooperation of the positioning ball 203 and the positioning groove 204.

[0029] Working principle: When in use, after the tension rope is respectively connected to the hooks 104 at both ends outside the housing 1, since both ends inside the bidirectional threaded sleeve 102 are respectively rotationally connected with a plurality of threaded slide rods 103 through threads, one end of the threaded slide rod 103 is fixedly connected to the carriage 108. After the threaded slide rod 103 is fixed to the carriage 108, it slides at one end inside the housing 1 through the slide rails 107 on both sides of the inner wall of the housing 1. Then rotate the bolt 2 on one side of the outer wall of the housing 1 to drive the driving gear 106 to rotate, and drive the meshing gear 105 to rotate through the driving gear 106. The bidirectional threaded sleeve 102 pulls the threaded slide rods 103 at both ends inside towards the center of the housing 1 through the internal threads, so that the hook 104 drives the tension rope to slide along the outer wall of the slide rail 107 and tighten the tension rope. When it is necessary to quickly release the tension rope, just push the bolt 2 towards the outer surface of the housing 1, so that the hexagonal end of the outer wall of the slack member 201 is disengaged from the hexagonal groove on the inner wall of the driving gear 106. The tension rope pulls the threaded slide rod 103 towards both sides of the housing 1, and at the same time rotates the bidirectional threaded sleeve 102, which can release the tension rope. When it is necessary to tighten the tension rope, just pull the bolt 2 towards the outside of the housing 1. After the slack member 201 is clamped with the hexagonal groove inside the driving gear 106 through the positioning ball 203 and the positioning groove 204, rotate the bolt 2 to tighten the tension rope. Thus, the device can realize the quick release of the tension rope by the cooperation of the positioning ball 203 and the positioning groove 204.

[0030] It should be noted that in this text, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "fixedly installed", "installed", "connected", "coupled" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "coupled" can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A two-way fastener, comprising a housing (1), characterized in that: Inside the housing (1), near both ends, a plurality of connecting blocks (101) are respectively fixedly connected. On the arc surface corresponding to one side of the outer wall of the connecting block (101), a bidirectional threaded sleeve (102) is rotatably connected. At both ends inside the bidirectional threaded sleeve (102), a plurality of threaded sliding rods (103) are respectively rotatably connected. One end of the outer wall of the threaded sliding rod (103) is fixedly connected with a hook (104). The hook (104) is located at both ends outside the bidirectional threaded sleeve (102), and the hook (104) is slidably connected to one end outside the housing (1) through the threaded sliding rod (103) and the bidirectional threaded sleeve (102). At the center of one side of the outer wall of the housing (1), a bolt (2) is rotatably connected, and the bolt (2) is rotatably connected to the bidirectional threaded sleeve (102). On one side of the outer wall of the bolt (2), a slack member (201) is fixedly connected.

2. The two-way fastener according to claim 1, characterized in that: At the center of the outer wall of the bidirectional threaded sleeve (102), a meshing tooth (105) is rotatably connected. On one side of the outer wall of the meshing tooth (105), a driving tooth (106) is rotatably connected. One end of the inner wall of the driving tooth (106) is mutually clamped with one end of the outer wall of the slack member (201).

3. The two-way fastener according to claim 1, characterized in that: On both sides of the outer wall of the housing (1), a plurality of sliding rails (107) are respectively fixedly connected. One end of the outer wall of the hook (104) is fixedly connected with a sliding frame (108), and one end inside the sliding frame (108) is slidably connected to one end of the outer wall of the sliding frame (108).

4. The bi-directional fastener according to claim 3, wherein: The sliding rails (107) are located on both sides inside the sliding frame (108). The hook (104) is slidably connected to one end outside the housing (1) through the bolt (2), the sliding rails (107) and the bidirectional threaded sleeve (102).

5. A two-way fastener according to claim 1, characterized in that: At the edge of one end inside the slack member (201), a plurality of fixing springs (202) are respectively fixedly connected. At the end of the outer wall of the fixing spring (202) away from the slack member (201), a positioning ball (203) is fixedly connected. The positioning ball (203) is slidably connected to the inner edge of the slack member (201).

6. A two-way fastener according to claim 2, wherein: At the center of the inner wall of the driving tooth (106), a plurality of positioning grooves (204) are respectively formed, and the positioning grooves (204) correspond to the positioning balls (203).

7. A two-way fastener according to claim 6, characterized in that: One end of the inner wall of the driving tooth (106) is mutually clamped with one end of the outer wall of the slack member (201) through the positioning groove (204), and one side inside the driving tooth (106) is slidably connected to one end of the slack member (201) away from the positioning ball (203).

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