Fastener clamping and fixing device used in narrow space

Abstract

The utility model provides a fastener clamping and fixing device used in a narrow space, which comprises an upper frame body, a lower frame body and a jacking device, the short straight section of the upper frame body is provided with an assembly hole, the jacking device is assembled in the short straight section, the lower frame body is fixedly arranged at the lower end of the long straight section of the upper frame body, and the lower frame body is fixedly arranged at the lower end of the long straight section of the upper frame body. A first slot and a second slot which are different in size are formed in the lower frame body; the jacking device is matched with the lower frame body, the part to be assembled is locked in the vertical direction, then the nut to be assembled is clamped and positioned through the second inserting groove, the situation that the nut to be assembled rotates together when a worker screws the bolt to be assembled is avoided, and then the bolt to be assembled is screwed through a proper wrench till the assembling requirement is met; and single-person single-wrench assembly construction in a narrow space is realized. The device is easy and convenient to operate, convenient to disassemble, assemble and maintain, light in self weight and capable of being brought into a narrow space for portable measurement, and the assembly construction efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to devices in the field of mechanical equipment assembly, and in particular to a fastener clamping and fixing device for use in confined spaces. Background Technology

[0002] Bolt and nut fastening is one of the important methods of assembling mechanical equipment parts. When tightening or disassembling bolts and nuts, if a single wrench is used to tighten only the bolt or nut, the nut or bolt that it is paired with will usually rotate together, which will not meet the assembly requirements. Therefore, it is necessary for two people to hold the bolt and nut with one hand or one person to hold two wrenches with both hands to tighten or disassemble the fasteners.

[0003] In actual assembly operations, due to limitations imposed by the structure of the components or their installation location, it is often impossible for two people to work together or for a single person to use two wrenches. Instead, single-person, single-wrench work is the only option, resulting in poor assembly quality, wasted time, and reduced worker efficiency. Therefore, how to achieve single-person, single-wrench work in confined spaces where two-person collaboration is inconvenient, while ensuring assembly quality and improving efficiency, has become an urgent problem to be solved. Utility Model Content

[0004] To enable single-person, single-wrench assembly in confined spaces and improve efficiency while ensuring assembly quality, this invention provides a fastener clamping and fixing device for such spaces. The device uses a clamping mechanism mounted on the upper frame to clamp the components to be assembled in conjunction with the lower frame. A slot in the lower frame positions the nut to be assembled, preventing it from rotating when the worker tightens the bolt. This solves the technical problem of poor assembly quality and low efficiency in confined spaces.

[0005] The solution adopted by this utility model to solve the technical problem is:

[0006] A fastener clamping and fixing device for confined spaces includes an upper frame with an L-shaped structure for installation and support, the short straight section of which has a mounting hole in the vertical direction; a lower frame fixed to the lower end of the long straight section of the upper frame, arranged parallel to the short straight section of the upper frame, and having a first slot and a second slot inside, the second slot being located above the first slot and having a larger size than the first slot; a clamping device assembled inside the mounting hole; a component to be assembled arranged on the upper part of the lower frame, and its vertical position is locked by the clamping device; a nut to be assembled assembled inside the second slot; and a bolt to be assembled passing through the component to be assembled and the lower frame successively, and being assembled and connected to the nut to be assembled; wherein, the size of the first slot is adapted to the thread outer diameter of the bolt to be assembled, allowing the bolt to be assembled to pass through the lower frame; and the size of the second slot is adapted to the parallel side distance of the nut to be assembled, allowing the nut to be assembled to be locked and positioned inside the second slot.

[0007] The clamping device disclosed in this embodiment includes a stop washer fixedly disposed at the lower part of the mounting hole, with a through hole inside that matches the inner diameter of the mounting hole; a rebound spring, one end of which is fixedly disposed at the lower part of the stop washer, and the other end extending vertically downward; and a pin, the top end of which passes through the stop washer and the mounting hole successively, and the bottom end of which is fixedly connected to the lower end of the rebound spring.

[0008] The auxiliary handrail disclosed in this embodiment is fixed on the outer side wall of the upper frame, and the position of the inner side wall of the upper frame is adjusted so that it effectively fits the vertical surface of the component to be assembled.

[0009] The lower frame disclosed in this embodiment can be disassembled and replaced according to the thread outer diameter of the bolt to be assembled and the parallel edge distance of the nut to be assembled, so that the dimensions of the first slot and the second slot are adapted to it.

[0010] Positive effects:

[0011] This invention features an assembly hole on the short, straight section of the upper frame, into which a tightening device is installed. A lower frame is fixed at the lower end of the long, straight section of the upper frame, and a first and second slot of different sizes are provided inside the lower frame. The tightening device engages with the lower frame to lock the vertical position of the components to be assembled. The second slot then positions the nut to be assembled, preventing it from rotating when the worker tightens the bolt. A suitable wrench is then used to tighten the bolt until the assembly requirements are met, enabling single-person, single-wrench assembly in confined spaces. This device is simple and convenient to operate, easy to disassemble and maintain, and lightweight, allowing for portable measurement in confined spaces, effectively improving assembly efficiency. It is suitable as a fastener clamping and fixing device for use in confined spaces. Attached Figure Description

[0012] Figure 1 This is a front view of an embodiment of this application;

[0013] Figure 2 This is a cross-sectional view (AA) of an embodiment of this application;

[0014] Figure 3 This is a cross-sectional view of embodiment BB of this application.

[0015] In the picture,

[0016] 10. Upper frame; 11. Assembly holes;

[0017] 20. Lower frame; 21. First slot; 22. Second slot;

[0018] 30. Tightening device; 31. Stop washer; 32. Rebound spring; 33. Ejector pin;

[0019] 40. Components to be assembled; 50. Nuts to be assembled; 60. Bolts to be assembled; 70. Auxiliary handrails. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] As shown in the figure, a fastener clamping and fixing device for use in confined spaces includes:

[0022] The upper frame 10 has an L-shaped structure and is used for installation and support. Its short straight section has a vertically oriented mounting hole 11. The lower frame 20 is fixed to the lower end of the long straight section of the upper frame 10 and is arranged parallel to the short straight section. It has a first slot 21 and a second slot 22 inside, with the second slot 22 located above the first slot 21 and larger in size. A clamping device 30 is installed inside the mounting hole 11. The component 40 to be assembled is arranged on the upper part of the lower frame 20 and is clamped by the clamping device. The vertical position of the nut 50 is locked in place; the nut 50 to be assembled is assembled inside the second slot 22; the bolt 60 to be assembled passes through the component 40 to be assembled and the lower frame 20 in sequence, and is assembled and connected with the nut 50 to be assembled; wherein, the size of the first slot 21 is adapted to the thread outer diameter of the bolt 60 to be assembled, so that the bolt 60 to be assembled can pass through the lower frame 20; the size of the second slot 22 is adapted to the distance of the parallel side of the nut 50 to be assembled, so that the nut 50 to be assembled is snapped and positioned inside the second slot 22.

[0023] Specifically, the upper frame 10 has an L-shaped structure, with its short straight section arranged above its long straight section, and a vertically penetrating assembly hole 11 for installation and support. The lower frame 20 is fixed to the inner sidewall of the lower end of the long straight section of the upper frame 10 by bolts, and is arranged parallel to the short straight section of the upper frame 10. It has a first slot 21 and a second slot 22 of different sizes inside. The second slot 22 is located above the first slot 21, and its size is larger than that of the first slot 21, forming a stepped structure, allowing the nut 50 and bolt 60 to be assembled to be installed here. The size of the first slot 21 is adapted to the thread outer diameter of the bolt 60, allowing the lower end of the bolt 60 to pass through the lower frame 20. The dimensions of slot 22 are adapted to the parallel side distance of the nut 50 to be assembled, so that the nut 50 to be assembled is snapped and positioned inside the second slot 22; the tightening device 30 is assembled inside the assembly hole 11, with its upper end extending upward through the assembly hole 11 and its lower end pressing against the upper surface of the lower frame 20 in the non-working state; the component 40 to be assembled is arranged on the upper part of the lower frame 20, with its vertical surface abutting against the inner side wall of the upper frame 10, and its vertical position is locked by the tightening device 30; the nut 50 to be assembled is assembled inside the second slot 22, arranged on the upper part of the first slot 21, with its bottom surface abutting against the stepped surface formed by the first slot 21 and the second slot 22; the bolt 60 to be assembled passes through the component 40 to be assembled and the lower frame 20 successively, and is assembled and connected with the nut 50 to be assembled.

[0024] The clamping device 30 includes a stop washer 31, which is fixed to the lower part of the mounting hole 11 and has a through hole inside that matches the inner diameter of the mounting hole 11; a spring 32, one end of which is fixed to the lower part of the stop washer 31 and the other end extends vertically downward; and a pin 33, the top end of which passes through the stop washer 31 and the mounting hole 11, and the bottom end is fixedly connected to the lower end of the spring 32.

[0025] Specifically, the upper part of the stop washer 31 is fixedly installed at the lower part of the assembly hole 11 by welding, and a through hole with an inner diameter matching the inner diameter of the assembly hole 11 is formed inside, forming a ring-shaped design; one end of the rebound spring 32 is fixedly installed at the lower part of the stop washer 31 by welding, and the other end extends vertically downward in a spiral, having a certain degree of elasticity; the top end of the ejector pin 33 passes through the stop washer 31 and the assembly hole 11 successively, and the outer diameter of the rod is matched with the inner diameter of the assembly hole 11, so that the ejector pin 33 can move freely in the vertical direction; the bottom end of the ejector pin 33 is fixedly connected to the lower end of the rebound spring 32 by welding, so that the ejector pin 33 can be driven by the rebound spring 32 to lock the component 40 to be assembled.

[0026] An auxiliary handrail 70 is fixed to the outer side wall of the upper frame 10. The position of the inner side wall of the upper frame 10 is adjusted so that it effectively fits the vertical surface of the component 40 to be assembled.

[0027] Specifically, the auxiliary handrail 70 is fixedly installed on the outer side wall of the upper frame 10 by welding, and is used to pull the device to adjust the position of the inner side wall of the upper frame 10 so that it effectively fits the vertical surface of the component 40 to be assembled, thereby increasing the stability and reliability of the device.

[0028] The lower frame 20 can be disassembled and replaced according to the thread outer diameter of the bolt 60 to be assembled and the parallel side distance of the nut 50 to be assembled, so that the dimensions of the first slot 21 and the second slot 22 are adapted to it.

[0029] Specifically, the lower frame 20 can be disassembled and replaced according to the thread outer diameter of the bolt 60 to be assembled and the parallel edge distance of the nut 50 to be assembled, so that the dimensions of the first slot 21 and the second slot 22 are adapted to it, so that the device can be used for assembly operations of bolts and nuts of various sizes, increasing the practicality of the device.

[0030] Features of this utility model:

[0031] This invention features an assembly hole 11 on the short straight section of the upper frame 10, with a tightening device 30 installed inside. A lower frame 20 is fixed to the lower end of the long straight section of the upper frame 10, and a first slot 21 and a second slot 22 of different sizes are provided inside the lower frame 20. In actual use, the tightening device 30 cooperates with the lower frame 20 to lock the vertical position of the component 40 to be assembled. Then, the second slot 22 is used to position the nut 50 to be assembled, preventing it from rotating together when the worker tightens the bolt 60 to be assembled. A suitable wrench is then used to tighten the bolt 60 until the assembly requirements are met, enabling single-person, single-wrench assembly work in confined spaces. This technical solution effectively solves the technical problem of poor assembly results and low construction efficiency caused by workers performing assembly work in confined spaces. Furthermore, this device is simple and convenient to operate, easy to disassemble and maintain, and lightweight, allowing for portable measurement in confined spaces, effectively improving assembly efficiency.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fastener clamping and fixing device for use in confined spaces, characterized in that: The upper frame (10) is designed in an L-shape to provide installation and support, and its short straight section has assembly holes (11) in the vertical direction. The lower frame (20) is fixed at the lower end of the long straight section of the upper frame (10) and arranged parallel to the short straight section of the upper frame (10). It has a first slot (21) and a second slot (22) inside. The second slot (22) is located on the upper side of the first slot (21), and the size of the second slot (22) is larger than the size of the first slot (21). A clamping device (30) is fitted inside the mounting hole (11); The parts to be assembled (40) are arranged on the upper part of the lower frame (20), and their vertical positions are locked by the clamping device (30); The nut (50) to be assembled is fitted into the inside of the second slot (22); The bolts (60) to be assembled pass through the parts (40) to be assembled and the lower frame (20) in succession, and are assembled and connected with the nuts (50) to be assembled. The first slot (21) is sized to match the outer diameter of the thread of the bolt (60) to be assembled, so that the bolt (60) to be assembled can pass through the lower frame (20); the second slot (22) is sized to match the distance between the parallel sides of the nut (50) to be assembled, so that the nut (50) to be assembled is snapped and positioned inside the second slot (22).

2. The fastener clamping and fixing device for confined spaces according to claim 1, characterized in that: The clamping device (30) includes, A stop washer (31) is fixed to the lower part of the assembly hole (11), and a through hole is opened inside it that matches the inner diameter of the assembly hole (11). The spring (32) has one end fixed to the lower part of the stop washer (31) and the other end extends vertically downward; The top end of the ejector pin (33) passes through the stop washer (31) and the assembly hole (11) respectively, and the bottom end is fixedly connected to the lower end of the rebound spring (32).

3. The fastener clamping and fixing device for confined spaces according to claim 1, characterized in that: An auxiliary handrail (70) is fixed on the outer side wall of the upper frame (10). The position of the inner side wall of the upper frame (10) is adjusted so that it effectively fits the facade of the component (40) to be assembled.

4. The fastener clamping and fixing device for confined spaces according to claim 1, characterized in that: The lower frame (20) can be disassembled and replaced according to the thread outer diameter of the bolt (60) to be assembled and the parallel side distance of the nut (50) to be assembled, so that the dimensions of the first slot (21) and the second slot (22) are adapted to it.

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