Multifunctional tightening device and use method

Abstract

The invention relates to a multifunctional fastening device and a use method, two fork type rotary lifting hooks in the fastening device are respectively installed on a binding belt, one fork type rotary lifting hook is fixedly connected with a fixed seat through the binding belt, the other fork type rotary lifting hook is connected with a belt collecting disc riveting piece through the binding belt, and the two fork type rotary lifting hooks are fixedly connected with the fixed seat through the binding belt. The binding belt is installed on the belt collecting disc riveting piece and contracts along with rotation. The take-up reel riveting piece is connected with and synchronously rotates with the clockwork spring assembly, the ratchet wheel assembly and the crank assembly; the switch assembly is installed on the fixing base. The problems that an existing tightening device is low in efficiency, single in function, low in convenience and the like in the using process are solved. Through reasonable distribution and mutual nesting of a clockwork spring, a ratchet wheel, a ratchet wheel lock and other mechanisms arranged in the tightening device, one-way extension, one-way contraction tensioning, rapid recovery, free extension and locking functions of a binding belt of the tightening device are achieved, the tensioning function of the tightening device is achieved through arrangement of a crank and one-way contraction, and the use efficiency and usability of the tightening device are improved.

Description

Technical Field

[0001] The invention relates to a fastener, in particular to a multifunctional fastener, and belongs to the technical field of fasteners. Background Art

[0002] In various transportation fields such as ships and trucks, bolters are needed to secure goods during transportation, movement, loading and unloading or storage. Especially inside ships, bolters are needed in large quantities. One end is fixed to the mooring seat of the elevator or transfer vehicle, and the other end is fixed to the fixed place of the goods to prevent the goods from tipping over or sliding due to the swaying of the ship during navigation.

[0003] At present, the bolt tighteners in the industry have the following problems:

[0004] (1) Due to the large amount of cargo transshipment inside the ship, the fasteners need to be frequently tightened and loosened. Sometimes, multiple fasteners are required for each piece of cargo. Most existing fasteners are ratchet drive sleeves, which gradually loosen or tighten the lashing belt, causing a lot of time waste during use;

[0005] (2) The existing tie-down straps need to be manually recovered and cannot be quickly recovered, resulting in a waste of time during use.

[0006] (3) The existing fastener cannot realize multiple functions such as unidirectional extension, unidirectional contraction, bidirectional extension and contraction or locking of the webbing, cannot be operated with one hand, and is less convenient to use. Summary of the invention

[0007] The purpose of the present invention is to provide a multifunctional fastener and a method of use, so as to solve the problems of low efficiency, single function, low convenience, etc. in the use of the existing fastener. By setting the spring, ratchet, ratchet lock and other mechanisms in the fastener in a reasonable distribution and mutual nesting, the fastener can realize the one-way extension, one-way contraction tensioning, rapid recovery function, free extension and locking function of the fastener binding belt, and the tensioning function of the fastener can be realized by setting a crank and unidirectional contraction, so as to improve the efficiency and ease of use of the fastener.

[0008] To achieve the above-mentioned purpose, the technical solution of the present invention is: a multifunctional tightener, including a fork-type rotating hook, a binding belt, a fixed seat, a take-up disk riveted part, a spring assembly, a ratchet assembly, a switch assembly, and a crank, wherein two fork-type rotating hooks are respectively installed on the binding belt, wherein one fork-type rotating hook is fixedly connected to the fixed seat through the binding belt, and the other fork-type rotating hook is connected to the take-up disk riveted part through the binding belt, and the binding belt is installed on the take-up disk riveted part and shrinks with the rotation; the take-up disk riveted part is connected to the spring assembly, the ratchet assembly, and the crank assembly and rotates synchronously; the switch assembly is installed on the fixed seat and is in contact with the ratchet assembly.

[0009] Furthermore, the take-up reel riveted part is composed of a take-up reel and a take-up reel flange, the take-up reel flanges are symmetrically arranged on both sides of the take-up reel, and the take-up reel and the take-up reel flanges are fixed by riveting.

[0010] Furthermore, the spring assembly is composed of a spring shaft, a spring case, a spring leaf, a spring case cover plate, and an external retaining spring. The spring leaf and the spring case cover plates on both sides are placed in the spring case, the spring shaft passes through the spring leaf and the spring case cover plates on both sides, and is fixedly connected to the inner ring of the spring leaf, the outer ring of the spring leaf is fixedly connected to the spring case, and the end of the spring shaft is fixed by an external retaining spring.

[0011] Furthermore, the ratchet assembly is composed of a ratchet cover, a ratchet piece, a ratchet shell, a ratchet lock, and a torsion spring. The ratchet piece, the ratchet lock, and the torsion spring are installed in the ratchet shell and the ratchet cover, the ratchet piece is installed on the spring shaft, a ratchet lock is provided below the ratchet piece, the lower end of the ratchet lock is connected to the ratchet shell by a bolt and can swing around the bolt, a torsion spring is provided on the ratchet lock, and a switch assembly is provided in the middle of the ratchet lock.

[0012] Furthermore, the switch assembly consists of a cam and a switch lever. The cam is installed in the middle of the ratchet lock and connected to the switch lever. The rotation of the switch lever drives the cam to rotate, and the cam contacts the ratchet lock to change the movement state of the ratchet piece.

[0013] A method for using a multifunctional fastener, the steps of which are as follows:

[0014] S1, Multi-function tie-down device fixation: fix the fixing seat or one end of the lashing strap on the tie-down seat or on the cargo;

[0015] S2, the binding belt extends: switch the switch assembly to the extension position, at this time the binding belt 2 is pulled out and cannot be retracted;

[0016] S3, lashing strap fixation: Fix the other end of the lashing strap to the cargo or another tie-down seat.

[0017] S4, multi-function tie-down device tensioning: switch the switch assembly to the retracted position, at which time the tie-down belt can only be retracted and cannot be extended. Tighten the multi-function tie-down device by turning the crank handle to firmly tie up the cargo;

[0018] S5, multi-function fastener locked: switch the switch assembly to the locked position, at which time the multi-function fastener can neither extend nor retract, and is in a locked state, and the cargo is firmly tied;

[0019] S6, multi-function tie-down device unlocking: switch the switch assembly to the unlocking position, at which time the tie-down strap is in a free state and can be extended or retracted. Loosen the tie-down strap on the cargo and the tie-down strap will automatically retract.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention realizes that the tie belt can be automatically retracted when the tie-down device is in the free gear position through reasonable design, thereby greatly improving the recovery efficiency of the tie-down device.

[0022] (2) The present invention arranges the various mechanisms reasonably and nests the various mechanisms with each other, thereby greatly reducing the space occupied by the fastener while achieving multifunctional integration.

[0023] (3) In the present invention, by providing a retracted gear and a crank, the bolt can be tightened more easily, so that the cargo is tied more firmly.

[0024] (4) In the present invention, by setting the extension gear, it is possible to avoid having to hold the fastener in the hand when moving the fastener in the initial stage of securing the cargo, so that the fastener can be moved more conveniently in the initial stage of securing the cargo.

[0025] (5) The replaceable tie straps and fork-type rotating hooks of the present invention can be replaced according to the weight of the goods to be fastened, thereby ensuring the lightness of the fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the multifunctional fastener of the present invention;

[0027] Figure 2 yes Figure 1 A schematic diagram of the structure of the take-up reel riveting parts;

[0028] Figure 3 yes Figure 2 A cross-sectional view of

[0029] Figure 4 yes Figure 1 A schematic diagram of the structure of the clockwork assembly in FIG.

[0030] Figure 5 yes Figure 1 A schematic diagram of the structure of the ratchet assembly;

[0031] Figure 6 yes Figure 1 A schematic diagram of the structure of the switch assembly in FIG.

[0032] Figure 7 It is a schematic diagram of the working state of the present invention;

[0033] In the figure: fork-type rotating hook 1, binding belt 2, fixing seat 3, take-up reel rivet 4, take-up reel 4-1, take-up reel flange 4-2, clockwork assembly 5, clockwork shaft 5-1, clockwork case 5-2, clockwork spring leaf 5-3, clockwork case cover 5-4, outer retaining spring 5-5, ratchet assembly 6, ratchet cover 6-1, ratchet leaf 6-2, ratchet case 6-3, ratchet lock 6-4, torsion spring 6-5, switch assembly 7, cam 7-1, switch lever 7-2, crank 8. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] like Figure 1 As shown, the present invention provides a multifunctional fastener, including a fork-type rotating hook 1, a binding belt 2, a fixing seat 3, a take-up reel rivet 4, a spring assembly 5, a ratchet assembly 6, a switch assembly 7, and a crank 8. Two fork-type rotating hooks 1 are respectively mounted on the binding belt 2, wherein one fork-type rotating hook 1 is fixedly connected to the fixing seat 3 through the binding belt 2, and the other fork-type rotating hook 1 is connected to the take-up reel rivet 4 through the binding belt 2, and the binding belt 2 is mounted on the take-up reel rivet 4 and shrinks with the rotation. The take-up reel rivet 4 is connected to the spring assembly 5, the ratchet assembly 6, and the crank assembly 8 and rotates synchronously. The switch assembly 7 is mounted on the fixing seat 3. The crank assembly 8 consists of a crank and a crank handle.

[0036] like Figure 2 As shown in FIG. 3 , the take-up reel riveted part 4 is composed of a take-up reel 4-1 and a take-up reel flange 4-2. The take-up reel flange 4-2 is symmetrically arranged on both sides of the take-up reel 4-1. The take-up reel 4-1 and the take-up reel flange 4-2 are fixed by riveting.

[0037] like Figure 4 As shown, the clockwork assembly 5 is composed of a clockwork shaft 5-1, a clockwork housing 5-2, a clockwork spring 5-3, a clockwork housing cover 5-4, and an outer retaining spring 5-5. The clockwork spring 5-3 and the clockwork housing covers 5-4 on both sides are placed in the clockwork housing 5-2, the clockwork shaft 5-1 passes through the clockwork spring 5-3 and the clockwork housing covers 5-4 on both sides, and is fixedly connected to the inner ring of the clockwork spring 5-3, the outer ring of the clockwork spring 5-3 is fixedly connected to the clockwork housing 5-2, and the end of the clockwork shaft 5-1 is fixed by the outer retaining spring 5-5.

[0038] like Figure 5As shown, the ratchet assembly 6 is composed of a ratchet cover plate 6-1, a ratchet piece 6-2, a ratchet shell 6-3, a ratchet lock 6-4, a torsion spring 6-5, etc. The ratchet piece 6-2, the ratchet lock 6-4, and the torsion spring 6-5 are installed in the ratchet shell 6-3 and the ratchet cover plate 6-1, the ratchet piece 6-2 is installed on the spring shaft 5-1, a ratchet lock 6-4 is provided below the ratchet piece 6-2, the lower end of the ratchet lock 6-4 is connected to the ratchet shell 6-3 by a bolt, and can swing around the bolt, a torsion spring 6-5 is provided on the ratchet lock 6-4, and a switch assembly 7 is provided in the middle of the ratchet lock 6-4.

[0039] like Figure 6 As shown, the switch assembly 7 is composed of a cam 7-1 and a switch lever 7-2. The cam 7-1 is installed in the middle of the ratchet lock 6-4 and connected to the switch lever 7-2. The rotation of the switch lever 7-2 drives the cam 7-1 to rotate, and the cam 7-1 contacts the ratchet lock 6-4, changing the motion state of the ratchet plate 6-2.

[0040] like Figure 7 As shown, the present invention provides a method for using a multifunctional fastener, and the main process is as follows:

[0041] S1, fixing with a multifunctional fastener: fix the fixing seat 3 or one end of the lashing belt 2 on the tie-down seat or on the cargo.

[0042] S2, the binding belt 2 is extended: the switch assembly 7 is switched to the extended position, at which time the binding belt 2 can be pulled out but cannot be retracted.

[0043] S3, fix the lashing strap 2: fix the other end of the lashing strap 2 to the cargo or another tie-down seat.

[0044] S4, tighten the multifunctional fastener: switch the switch assembly 7 to the retracted position, at which time the tie belt 2 can only be retracted but not extended, and the multifunctional fastener is tightened by turning the crank 8 to firmly bind the cargo.

[0045] S5, locking the multifunctional fastener: switching the switch assembly 7 to the locking position, at which time the multifunctional fastener can neither be extended nor retracted, and is in a locked state, and the cargo is firmly bound.

[0046] S6, unlocking the multifunctional fastener: switching the switch assembly 7 to the unlocking position, at which time the tie strap 2 is in a free state and can be extended or retracted. Loosen the tie strap 2 on the cargo and the tie strap 2 can be automatically retracted.

Claims

1. A multifunctional fastener, characterized in that: It includes a fork-type rotating hook, a binding belt, a fixing seat, a take-up reel riveted part, a spring assembly, a ratchet assembly, a switch assembly, and a crank. Two fork-type rotating hooks are respectively installed on the binding belt, wherein one fork-type rotating hook is fixedly connected to the fixing seat through the binding belt, and the other fork-type rotating hook is connected to the take-up reel riveted part through the binding belt. The binding belt is installed on the take-up reel riveted part and shrinks with the rotation; the take-up reel riveted part is connected to the spring assembly, the ratchet assembly, and the crank assembly and rotates synchronously; the switch assembly is installed on the fixing seat and is in contact with the ratchet assembly.

2. The multifunctional fastener according to claim 1, characterized in that: The take-up reel riveted part is composed of a take-up reel and a take-up reel flange. The take-up reel flanges are symmetrically arranged on both sides of the take-up reel. The take-up reel and the take-up reel flanges are fixed by riveting.

3. The multifunctional fastener according to claim 1, characterized in that: The spring assembly consists of a spring shaft, a spring case, a spring leaf, a spring case cover, and an external retaining spring. The spring leaf and the spring case covers on both sides are placed in the spring case, the spring shaft passes through the spring leaf and the spring case covers on both sides, and is fixedly connected to the inner ring of the spring leaf, the outer ring of the spring leaf is fixedly connected to the spring case, and the end of the spring shaft is fixed by an external retaining spring.

4. The multifunctional fastener according to claim 1, characterized in that: The ratchet assembly consists of a ratchet cover, a ratchet piece, a ratchet shell, a ratchet lock, and a torsion spring. The ratchet piece, the ratchet lock, and the torsion spring are installed in the ratchet shell and the ratchet cover. The ratchet piece is installed on the spring shaft. A ratchet lock is provided below the ratchet piece. The lower end of the ratchet lock is connected to the ratchet shell by a bolt and can swing around the bolt. A torsion spring is provided on the ratchet lock, and a switch assembly is provided in the middle of the ratchet lock.

5. The multifunctional fastener according to claim 1, characterized in that: The switch assembly consists of a cam and a switch lever. The cam is installed in the middle of the ratchet lock and is connected to the switch lever. The rotation of the switch lever drives the cam to rotate, and the cam contacts the ratchet lock, changing the movement state of the ratchet piece.

6. A method for using the multifunctional fastener according to any one of claims 1 to 5, characterized in that: The steps are as follows: S1, Multi-function tie-down device fixation: fix the fixing seat or one end of the lashing strap on the tie-down seat or on the cargo; S2, the binding belt extends: switch the switch assembly to the extension position, at this time the binding belt 2 is pulled out and cannot be retracted; S3, lashing strap fixation: Fix the other end of the lashing strap to the cargo or another tie-down seat. S4, multi-function tie-down device tensioning: switch the switch assembly to the retracted position, at which time the tie-down belt can only be retracted and cannot be extended. Tighten the multi-function tie-down device by turning the crank handle to firmly tie up the cargo; S5, multi-function fastener locked: switch the switch assembly to the locked position, at which time the multi-function fastener can neither extend nor retract, and is in a locked state, and the cargo is firmly tied; S6, multi-function tie-down device unlocking: switch the switch assembly to the unlocking position, at which time the tie-down strap is in a free state and can be extended or retracted. Loosen the tie-down strap on the cargo and the tie-down strap will automatically retract.

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