Special operation tightener

Abstract

The utility model relates to the technical field of rope tightening tools, and discloses a special operation tightener, which comprises a tightening main body and a reversible wrench, the tightening main body is provided with a hollow frame body with a tightening space and a rotating shaft part partially arranged in the tightening space, two opposite sides of the frame body are respectively provided with a first threading hole and a second threading hole which are communicated with the tightening space, and the reversible wrench is arranged on the frame body. The rotating shaft piece is provided with a third threading hole, the third threading hole and the first threading hole and / or the second threading hole can be penetrated by the same rope, the rotating shaft piece rotates and winds the rope, the rope tightening operation can be completed only in the rope tightening space, the structure is simple, the rope tightening device is suitable for a narrow space, the threading mode of the rope can be changed, different required rope tightening efficiencies are considered, and the universality is high; in order to save labor, the reversible wrench is additionally arranged, and the wrench piece can synchronously rotate with the rotating shaft piece in the wire tightening direction through the reset bearing and independently reset, so that the rotating shaft piece can be continuously controlled to tighten wires in a limited operation space, the wrench is further suitable for a narrow space, repeated disassembly and assembly of the wrench due to inconvenient rotating angles are avoided, and the wire tightening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rope tightening tools, in particular to a special operation tightening device. Background Art

[0002] In work scenarios such as construction positioning, power line erection, freight cargo bundling, and agricultural machinery installation, various pull wires, wires, and ropes need to be tightened and positioned. The manual tightening method has high strength, low efficiency, and limited tensioning force, which cannot meet the work requirements. Therefore, the wire tensioner came into being and is often used in similar work scenarios.

[0003] In the prior art, the application scenarios of the wire tensioner are all in outdoor or field working environments, and the usability problem in small spaces in indoor or some special operation environments is not considered; on the other hand, the functions or purposes achieved by the current wire tensioner are mainly considered and improved from the aspects of the convenience of construction and installation, the safety of the device, and the service life. The objects of tightening and fixing are all for larger materials, equipment or instruments, and the versatility of small-sized operation objects is not considered, and the tightening efficiency cannot be matched with different tightening strokes. Utility Model Content

[0004] The utility model aims to provide a special operation tightening device, which has a simple structure, flexible operation and small size, and is suitable for use in a narrow space; it has strong versatility and can take into account the tightening efficiency of operation objects of different sizes.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Special operation tensioner, including:

[0007] A tightening body, the tightening body comprising a frame and a rotating shaft, the frame is hollow with a tightening space, and opposite side walls of the frame are respectively provided with a first threading hole and a second threading hole connected with the tightening space; the rotating shaft is rotatably connected to the frame, a third threading hole is provided on a portion of the rotating shaft disposed in the tightening space, and the third threading hole and the first threading hole and / or the second threading hole are configured to be passed through by the same rope;

[0008] A reversible wrench comprises a reset bearing and a wrench member, wherein the wrench member is placed outside the tightening space and is connected to the rotating shaft member through the reset bearing, and the reset bearing is configured to enable the wrench member to drive the rotating shaft member to rotate synchronously along the tightening direction, and the wrench member can be rotated independently to an initial position in the opposite direction of the tightening direction.

[0009] As an optional technical solution for a special operation tensioner, the first threading hole and the second threading hole are coaxially arranged, the axial direction of the rotating shaft is perpendicular to the axial direction of the first threading hole, and the axial direction of the third threading hole is perpendicular to the axial direction of the rotating shaft. When the rotating shaft rotates until the axial direction of the third threading hole is parallel to the axial direction of the first threading hole, the first threading hole, the second threading hole and the third threading hole are coaxial.

[0010] As an optional technical solution for the special operation tensioner, the frame includes a first half frame member and a second half frame member, and the first half frame member and the second half frame member are butted together to form the first threading hole and the second threading hole.

[0011] As an optional technical solution for a special operation tensioner, the two side walls of the frame body on which the first threading hole and the second threading hole are opened are respectively the first side wall and the second side wall, the first side wall and the second side wall are arranged opposite to each other, and the frame body also includes a reinforcement member, which is respectively passed through the first side wall and the second side wall to connect the first half frame member and the second half frame member.

[0012] As an optional technical solution for a special operation tensioner, the part of the rotating shaft placed outside the tensioning space is provided with a ratchet part, and the tensioning body includes a limit module, which is connected to the frame, and the limit module can prevent the ratchet part from rotating in the opposite direction of the tensioning direction.

[0013] As an optional technical solution for the special operation tensioner, the limit module includes a limit part and a reset spring, two ends of the reset spring are respectively connected to the frame and the limit part, and the limit part selectively abuts against the ratchet part.

[0014] As an optional technical solution for the special operation tensioner, the special operation tensioner includes an extension piece, the extension piece is connected to the portion of the rotating shaft member placed outside the tensioning space, and the wrench member is connected to the extension piece through the reset bearing.

[0015] As an optional technical solution for a special operation tensioner, the rotating shaft is passed through the frame, and the tensioner body includes a limiter, one end of the limiter passes through the frame and is detachably connected to an end of the rotating shaft away from the reversible wrench, and the other end of the limiter abuts against the outer side of the frame.

[0016] As an optional technical solution for the special operation tensioner, the frame is provided with guide angles at the relative outer ends of the first threading hole and the second threading hole respectively.

[0017] As an optional technical solution for the special operation tensioner, the tensioner body is made of alloy material.

[0018] Beneficial effects of the utility model:

[0019] The special operation tensioner provided by the utility model comprises a tensioning body and a reversible wrench. The tensioning body comprises a frame and a rotating shaft, a tensioning space is arranged in the hollow frame, and a first threading hole and a second threading hole are respectively arranged on the opposite side walls, which are connected to the tensioning space; the rotating shaft is partially placed in the tensioning space and a third threading hole is arranged; the third threading hole and the first threading hole and / or the second threading hole are configured to be passed through by the same rope, the rotating shaft rotates relative to the frame to wrap the rope around the rotating shaft to complete the tensioning operation, the structure is simple and the size is small, the tensioning operation can be completed only in the tensioning space, and it is suitable for application in a small space, according to different ways of threading the rope, the rotating shaft can choose to wrap the rope in one direction or two directions, the universality is strong, and the tensioning efficiency on working objects of different sizes can be taken into account. In order to operate the rotating shaft more conveniently and labor-savingly, a reversible wrench including a reset bearing and a wrench piece is additionally provided. The wrench piece is placed outside the tightening space and connected to the rotating shaft piece through the reset bearing. The reset bearing can enable the wrench piece to drive the rotating shaft piece to rotate synchronously in the tightening direction, and after rotating a certain angle, the force is withdrawn, and the wrench piece can be rotated back to the initial position alone in the opposite direction of the tightening direction, so that the staff can continue to control the tightening of the rotating shaft piece when the operating space is limited, further adapt to small space operations, and at the same time avoid the situation where the wrench needs to be repeatedly disassembled and assembled due to the inconvenience of rotation angle, thereby improving the tightening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the working of the special operation tensioner provided by the specific implementation method of the utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the working of the special operation tensioner provided by the specific implementation method of the utility model. Figure 2 .

[0022] In the figure:

[0023] 100, tightening body; 110, frame; 1101, first threading hole; 1102, second threading hole; 111, first half frame; 112, second half frame; 113, reinforcement;

[0024] 120, rotating shaft; 1201, third threading hole; 121, ratchet part;

[0025] 130. Limiting module; 131. Limiting part; 132. Return spring;

[0026] 140, limiter;

[0027] 200, reversible wrench; 300, extension piece; 900, rope. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figure 1 and Figure 2As shown in the figure, the utility model discloses a special operation tensioner, including a tensioner body 100 and a reversible wrench 200, which is used in special operation environments, especially in narrow spaces. The tensioner body 100 includes a frame 110 and a rotating shaft 120. The frame 110 is hollowed out to provide a tensioning space, and the first threading hole 1101 and the second threading hole 1102 are respectively provided on the opposite side walls of the frame 110, which are connected to the tensioning space; at the same time, part of the rotating shaft 120 is placed in the tensioning space and a third threading hole 1201 is provided. The third threading hole 1201 and the first threading hole 1101 and / or the second threading hole 1102 can be connected by the same rope 900. The rotating shaft 120 is rotatably connected to the frame 110, and the rotating shaft 120 is rotated to wrap the rope 900 around the rotating shaft 120 to complete the tightening operation. The structure is simple and the size is small. The tightening operation can be completed only in the tightening space. It is suitable for use in a small space, and according to the different ways of passing the rope 900, the rotating shaft 120 can choose to tighten the rope 900 in one direction or two directions. It has strong versatility and can take into account the tightening efficiency on work objects of different sizes. In order to operate the rotating shaft 120 more conveniently and labor-savingly, a reversible wrench 200 including a reset bearing and a wrench piece is added. The wrench piece is placed outside the tightening space and connected to the rotating shaft 120 through the reset bearing. The reset bearing can make the wrench piece drive the rotating shaft 120 to rotate synchronously along the tightening direction, and after rotating a certain angle, the force is withdrawn, and the wrench piece can be rotated to the initial position alone in the opposite direction of the tightening direction, so that the staff can continue to control the tightening of the rotating shaft 120 when the operating space is limited, further adapt to small space operations, and avoid the situation where ordinary wrenches need to be repeatedly disassembled and assembled to adjust the rotation angle due to the inconvenience of the rotation angle, thereby improving the tightening efficiency. For example, the tightening direction can be clockwise or counterclockwise, and the tightening operation can be completed as long as the rotating shaft 120 is guaranteed not to reverse.

[0033] Specifically, different ropes 900 can be threaded and fixed in different ways to achieve unidirectional or bidirectional winding and tightening, and the travel of the tightening operation can be further considered to match the tightening efficiency required for different sizes of work objects. If the required tightening amplitude is large, the required tightening efficiency is high, or for relatively large objects, bidirectional winding and tightening can be performed, and the rope 900 needs to pass through the first threading hole 1101, the third threading hole 1201 and the second threading hole 1102 in sequence, and the rotating shaft 120 is rotated to achieve double-strand winding, shorten the travel of the tightening operation, and greatly improve the tightening efficiency. If the required tightening amplitude is small, the required tightening efficiency is low, or for relatively small objects, etc., one-way winding and tightening can be performed. The detailed operation is to divide the rope 900 into two independent sections. After one end of the first section passes through the first threading hole 1101 and the third threading hole 1201, a single-hole wire locker is used to form a fixed connection with the rotating shaft 120, and the other end of the first section uses an eight-shaped two-way wire locker to form a hanging code and a hook connection with the tightening object; after one end of the second section passes through the second threading hole 1102, it is fixed to the frame 110 with an open pin, and the other end of the second section also uses an eight-shaped two-way wire locker to form a hanging code and a hook connection with the tightening object, and then the rotating shaft 120 is rotated to achieve single-strand winding, which meets the tightening positioning operation of small-sized objects in a narrow space, and makes up for the shortcomings of existing tightening devices in usability and versatility.

[0034] In this embodiment, the axial direction of the rotating shaft 120 is perpendicular to the axial directions of the first threading hole 1101 and the second threading hole 1102 which are coaxially arranged, and the axial direction of the third threading hole 1201 is perpendicular to the axial direction of the rotating shaft 120, that is, no matter how the rotating shaft 120 rotates, the axial extension direction of the third threading hole 1201 and the axial extension direction of the first threading hole 1101 and the second threading hole 1102 are always in the same plane; when the rotating shaft 120 rotates to the third threading hole 1201 When the axis of the first threading hole 1101 is parallel to the axis of the first threading hole 1101, the first threading hole 1101, the second threading hole 1102 and the third threading hole 1201 are coaxial, and the rope 900 can pass through the first threading hole 1101, the second threading hole 1102 and the third threading hole 1201 straightly, so as to prevent the rotating shaft 120 from rotating and wrapping around the rope 900. In addition to the tightening force in the tightening line direction, the lateral twisting force is also increased, which has an adverse effect on the strength of the rope 900 and the rotation force of the rope 900. Exemplarily, guide angles are set at the relative outer ends of the first threading hole 1101 and the second threading hole 1102 on the frame 110, respectively, so as to make it more convenient for the rope 900 to pass through the frame 110 through the first threading hole 1101 or the second threading hole 1102.

[0035] Furthermore, the frame 110 includes a first half frame member 111 and a second half frame member 112, and the first half frame member 111 and the second half frame member 112 can be connected to form a first threading hole 1101 and a second threading hole 1102. The frame 110 is configured as a split structure, which is convenient for disassembly and storage on the one hand, and on the other hand, an interface is added to the relatively low-strength portion of the frame 110 around the first threading hole 1101 and the second threading hole 1102, which can improve the structural strength. Optionally, the two side walls of the frame 110 having the first threading hole 1101 and the second threading hole 1102 are respectively the first side wall and the second side wall, and the first side wall and the second side wall are arranged opposite to each other. The frame 110 also includes a reinforcement 113, and the reinforcement 113 is respectively passed through the first side wall and the second side wall to connect the first half frame part 111 and the second half frame part 112, so as to further improve the connection strength between the first half frame part 111 and the second half frame part 112, and avoid the force between the rope 900 and the frame 110 during the tightening process to destroy the stability of the frame 110.

[0036] In this embodiment, a ratchet portion 121 is provided on the portion of the rotating shaft 120 that is placed outside the tightening space. When the rotating shaft 120 rotates in the tightening direction, the ratchet portion 121 also rotates synchronously. The tightening body 100 also includes a limit module 130, which is connected to the frame 110. The limit module 130 can prevent the ratchet portion 121 from rotating in the opposite direction of the tightening direction.

[0037] Specifically, the limiting module 130 includes a limiting portion 131 and a reset spring 132, the two ends of the reset spring 132 are respectively connected to the frame 110 and the limiting portion 131, a limiting platform is protruded on the frame 110, one end of the reset spring 132 is fixedly connected to the limiting platform, the central axis of the limiting portion 131 is rotatably connected to the frame 110, the tail of the limiting portion 131 is connected to the other end of the reset spring 132, the head of the limiting portion 131 is selectively abutted against the ratchet portion 121, and when the rotating shaft 120 drives the ratchet portion 121 to rotate in the tightening direction, the head of the limiting portion 131 and the ratchet portion 121 slide relative to each other. When the rotational force applied to the rotating shaft 120 is removed, the rope 900 is over-tightened to generate a certain tension and deformation. At this time, the rope 900 will recover and drive the rotating shaft 120 to have a reverse trend. The ratchet part 121 abuts against the head of the limiting part 131, which can prevent the rotating shaft 120 from rotating in the opposite direction of the tightening direction.

[0038] Optionally, the rotating shaft 120 is passed through the frame 110. In order to better install and fix the rotating shaft 120, the tightening body 100 also includes a limiting member 140. One end of the limiting member 140 passes through the frame 110 and is detachably connected to the end of the rotating shaft 120 away from the reversible wrench 200, and the other end of the limiting member 140 abuts against the outer side of the frame 110, which can prevent the rotating shaft 120 from being away from the end of the limiting member 140 and thus falling out of the frame 110; the other end of the rotating shaft 120 is provided with a ratchet portion 121 outside the tightening space, which can also prevent the rotating shaft 120 from falling out of the frame 110 in the direction of the limiting member 140. The tensioning body 100 adopts an assembled design concept and has a simple structure. It only needs to use the first half frame 111, the second half frame 112, the reinforcement 113, the limit member 140 and the rotating shaft 120 to connect and fix them with common tools, screws and nuts to complete the assembly, and the parts replacement is also more flexible.

[0039] For example, the tightening wire body 100 is made of alloy material. According to the different materials and tightening force of the rope 900, the specific alloy used is selected to ensure that the weight of the tightening wire body 100 does not exceed 100 grams, and the manufacturing cost of the special operation tightening wire device can also be controlled. The specific size of the tightening wire body 100 can be set to 10 cm in length, 5 cm in width, and 2.5 cm in height, that is, the distance between the first threading hole 1101 and the second threading hole 1102 is less than 5 cm, and the side wall frame of the frame 110 is 2.5 cm to meet the strength required for tightening the wire. The tightening wire body 100 has a smaller size and is suitable for operations in narrow spaces and the use of small objects that need to tighten the rope 900.

[0040] Optionally, the special operation tensioner also includes an extension piece 300, which is connected to the portion of the rotating shaft 120 placed outside the tensioning space, and the extension piece 300 is used to extend the rotating shaft 120. The wrench piece is connected to the extension piece 300 through a reset bearing, and the reversible wrench 200 is used in conjunction with the extension piece 300 to rotate the rotating shaft 120 of the special operation tensioner. This can effectively solve the problem of narrow and deep operating space or the inability to install the reversible wrench 200, and the inconvenience of the staff reaching in to rotate. The extension piece 300 expands the application scenarios of the special operation tensioner.

[0041] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Special operation tensioner, characterized in that: include: A tightening body (100), the tightening body (100) comprising a frame (110) and a rotating shaft (120); the frame (110) is hollow and has a tightening space; opposite side walls of the frame (110) are respectively provided with a first threading hole (1101) and a second threading hole (1102) which are connected to the tightening space; the rotating shaft (120) is rotatably connected to the frame (110); a portion of the rotating shaft (120) disposed in the tightening space is provided with a third threading hole (1201); the third threading hole (1201) and the first threading hole (1101) and / or the second threading hole (1102) are configured to be passed through by the same rope (900); A reversible wrench (200) comprises a reset bearing and a wrench member, wherein the wrench member is arranged outside the tightening space and is connected to the rotating shaft member (120) via the reset bearing, and the reset bearing is configured to enable the wrench member to drive the rotating shaft member (120) to rotate synchronously along the tightening direction, and the wrench member can be independently rotated back to an initial position in the opposite direction of the tightening direction.

2. The special operation tensioner according to claim 1, characterized in that: The first threading hole (1101) and the second threading hole (1102) are coaxially arranged, the axial direction of the rotating shaft (120) is perpendicular to the axial direction of the first threading hole (1101), and the axial direction of the third threading hole (1201) is perpendicular to the axial direction of the rotating shaft (120); when the rotating shaft (120) rotates until the axial direction of the third threading hole (1201) is parallel to the axial direction of the first threading hole (1101), the first threading hole (1101), the second threading hole (1102) and the third threading hole (1201) are coaxial.

3. The special operation tensioner according to claim 1, characterized in that: The frame (110) comprises a first half frame piece (111) and a second half frame piece (112); the first half frame piece (111) and the second half frame piece (112) are butt-jointed to form the first threading hole (1101) and the second threading hole (1102).

4. The special operation tensioner according to claim 3, characterized in that: The two side walls of the frame (110) on which the first threading hole (1101) and the second threading hole (1102) are respectively formed are the first side wall and the second side wall, and the first side wall is arranged opposite to the second side wall. The frame (110) further comprises a reinforcing member (113), and the reinforcing member (113) is respectively passed through the first side wall and the second side wall to connect the first half frame member (111) and the second half frame member (112).

5. The special operation tensioner according to claim 1, characterized in that: The portion of the rotating shaft (120) disposed outside the tightening space is provided with a ratchet portion (121), and the tightening body (100) comprises a limit module (130), the limit module (130) is connected to the frame (110), and the limit module (130) can prevent the ratchet portion (121) from rotating in a direction opposite to the tightening direction.

6. The special operation tensioner according to claim 5, characterized in that: The limiting module (130) comprises a limiting portion (131) and a return spring (132), the two ends of the return spring (132) are respectively connected to the frame (110) and the limiting portion (131), and the limiting portion (131) is selectively abutted against the ratchet portion (121).

7. The special operation tensioner according to any one of claims 1 to 6, characterized in that: The special operation tightening device comprises an extension piece (300), the extension piece (300) is connected to a portion of the rotating shaft (120) disposed outside the tightening space, and the wrench piece is connected to the extension piece (300) via the reset bearing.

8. The special operation tensioner according to any one of claims 1 to 6, characterized in that: The rotating shaft (120) is inserted through the frame (110), and the tightening body (100) comprises a limiting member (140), one end of which passes through the frame (110) and is detachably connected to an end of the rotating shaft (120) away from the reversible wrench (200), and the other end of the limiting member (140) abuts against the outer side of the frame (110).

9. The special operation tensioner according to any one of claims 1 to 6, characterized in that: The frame (110) is provided with guide angles (1103) at the opposite outer ends of the first threading hole (1101) and the second threading hole (1102).

10. The special operation tensioner according to any one of claims 1 to 6, characterized in that: The tightening wire body (100) is made of alloy material.

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