A fastener removal tool for tight spaces

Abstract

The utility model relates to screw dismounting equipment technical field especially relates to a fastener dismounting tool for narrow space, including frame, apron, gear drive group, plum blossom mouth gear and square mouth gear, the frame is the rectangular cavity structure of one end opening, and plum blossom mouth gear is set up in the first connecting port of frame, gear drive group is set up in the second connecting port, square mouth gear is set up in the third connecting port, the first gear on plum blossom mouth gear is connected with the second gear on square mouth gear through gear drive group and forms the transmission structure, gear drive group includes first bearing, transmission gear and second bearing, transmission gear is set up on the connecting shaft of second connecting port through first bearing and second bearing, the opening of frame is connected with apron through fixed screw.

Description

Technical Field

[0001] This utility model relates to the field of screw disassembly and assembly equipment, and in particular to a fastener disassembly and assembly tool for use in confined spaces. Background Technology

[0002] In daily maintenance work, the disassembly and assembly of fasteners are extremely frequent tasks. When dealing with screws that are difficult to access, technicians often face many challenges. Currently, there are various tools on the market for axial extension of screws, such as extension rods, universal socket heads, and flexible extension rods. These tools have solved the problem of inconvenience caused by the axial space limitation of screws to a certain extent. However, when faced with complex disassembly and assembly work scenarios where the space at the screw head is relatively narrow, the above tools become inadequate.

[0003] In such scenarios, due to the confined space, it is impossible to use a socket wrench for conventional disassembly and assembly operations along the screw axis. What is even more challenging is that other components often obstruct the screw along its diameter, making tools such as ratchet chucks and flat chucks difficult to use and extremely difficult to operate. Currently, the industry generally uses open wrenches or S-type Phillips screwdrivers for such situations, but these two tools have significant drawbacks. They can only rotate the screw by a very small angle each time they are used. The entire disassembly and assembly process is not only time-consuming but also requires a lot of physical effort from the repair personnel, greatly reducing repair efficiency and increasing repair costs.

[0004] Based on the shortcomings of the existing technology in screw disassembly and assembly in confined spaces, the inventors, through in-depth research and practice, have designed a brand-new radial extension screw disassembly and assembly tool, which can effectively solve the problem of difficult screw disassembly and assembly in confined spaces. Utility Model Content

[0005] The purpose of this utility model is to provide a fastener disassembly and assembly tool for confined spaces, which can effectively solve the current problem of difficult screw disassembly and assembly in confined spaces.

[0006] The technical implementation scheme of this utility model is as follows:

[0007] A fastener assembly / disassembly tool for confined spaces includes a frame, a cover plate, a gear transmission assembly, a perforated gear, and a square gear. The frame is a rectangular cavity structure with one open end. A perforated gear is installed in the first connection port of the frame, a gear transmission assembly is installed in the second connection port, and a square gear is installed in the third connection port. The first gear on the perforated gear is connected to the second gear on the square gear through the gear transmission assembly to form a transmission structure. The gear transmission assembly includes a first bearing, a transmission gear, and a second bearing. The transmission gear is mounted on the connecting shaft of the second connection port through the first and second bearings. The opening of the frame is connected to the cover plate by fixing screws.

[0008] Optionally, the frame is provided with a plurality of second connection ports, and connection openings are provided on both sides of the second connection ports.

[0009] Alternatively, the transmission gear can be connected to another transmission gear through a connection opening on the side.

[0010] Optionally, the two ends of the swivel gear are provided with a first connecting shaft, which is connected to the first connecting port and the fourth connecting port on the cover plate through a third bearing and a fourth bearing, respectively; the first connecting shaft is provided with a through hole, and the inside of the through hole is provided with a swivel internal hexagonal groove.

[0011] Optionally, the two ends of the square gear are provided with a second connecting shaft, and the second connecting shaft is connected to the third connecting port and the fifth connecting port on the cover plate through the fifth bearing and the sixth bearing respectively; the second connecting shaft is provided with a through hole, and the inside of the through hole is provided with a square opening.

[0012] Optionally, the number of gear transmission sets is odd.

[0013] This utility model has the following advantages:

[0014] 1. This utility model is a tool made of intermeshing transmission gears. Through power transmission, the plum-shaped gear at one end is driven, which can disassemble and install screws in narrow places. When using this design, you only need to fix the tool, hook the plum-shaped gear onto the screw to be disassembled, and turn the square gear with the small quick wrench to complete the disassembly. It can not only work in narrow places and is highly practical, but also has a simple structure and is easy to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the second structural state of this utility model.

[0018] The meanings of the reference numerals in the figure are as follows: 1-Frame, 2-Cover plate, 3-First connection port, 4-Third bearing, 5-Plum-shaped gear, 6-First gear, 7-Plum-shaped internal hexagonal groove, 8-Fourth bearing, 9-Fourth connection port, 10-Second connection port, 11-First bearing, 12-Transmission gear, 13-Second bearing, 14-Fixing screw, 15-Third connection port, 16-Fifth bearing, 17-Square gear, 18-Second gear, 19-Sixth bearing, 20-Fifth connection port, 21-Square hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0020] like Figure 1 and Figure 2 As shown, a fastener assembly / disassembly tool for confined spaces includes a frame 1, a cover plate 2, a gear transmission assembly, a perforated gear 5, and a square gear 17. The frame 1 is a rectangular cavity structure with one open end. The perforated gear 5 is installed in the first connection port 3 of the frame 1, the gear transmission assembly is installed in the second connection port 10, and the square gear 17 is installed in the third connection port 15. The first gear 6 on the perforated gear 5 is connected to the second gear 18 on the square gear 17 through the gear transmission assembly to form a transmission structure. The gear transmission assembly includes a first bearing 11, a transmission gear 12, and a second bearing 13. The transmission gear 12 is mounted on the connecting shaft of the second connection port 10 through the first bearing 11 and the second bearing 13. The opening of the frame 1 is connected to the cover plate 2 by a fixing screw 14.

[0021] It should be noted that, to achieve screw assembly and disassembly within a confined space, multiple transmission interfaces and gear transmission groups are designed inside frame 1. The front end of the frame has a first connection port 3 and a second connection port 10, used to install a plum-shaped gear 5 and a square-shaped gear 17, respectively. Each second connection port 10 is equipped with an independent gear transmission group, forming a parallel power transmission system. When the square-shaped gear 17 is driven, power is synchronously transmitted to the plum-shaped gear 5 through multiple gear sets, creating a structure where the torque decreases progressively. This design, sacrificing torque for space, effectively solves the problem of insufficient tool operating radius in confined areas, thus achieving mechanization of screw assembly and disassembly operations.

[0022] like Figures 1-3 As shown, the frame 1 has a plurality of second connection ports 10 inside, and the two sides of the second connection ports 10 have connection openings; the transmission gear 12 is connected to another transmission gear through the connection opening on the side.

[0023] It should be noted that the second connection port 10 is used to install the gear transmission assembly, and connection openings are provided on both sides to facilitate the meshing connection of the transmission gears 12 on the left and right sides. The advantage of this design is that the entire transmission gear 12 is stably set in a connection groove, the overall structure has high stability, and it does not affect the transmission of torque.

[0024] like Figure 1 and Figure 2As shown, the two ends of the plum blossom gear 5 are provided with a first connecting shaft, which is connected to the first connecting port 3 and the fourth connecting port 9 on the cover plate 2 through the third bearing 4 and the fourth bearing 8 respectively; the first connecting shaft is provided with a through hole, and the inside of the through hole is provided with a plum blossom internal hexagonal groove 7; the two ends of the square gear 17 are provided with a second connecting shaft, which is connected to the third connecting port 15 and the fifth connecting port 20 on the cover plate 2 through the fifth bearing 16 and the sixth bearing 19 respectively; the second connecting shaft is provided with a through hole, and the inside of the through hole is provided with a square opening 21.

[0025] It should be noted that the Phillips head gear 5 is hinged to the bearings in the first connecting port 3 and the fourth connecting port 9 of the cover plate 2 via the first connecting shafts mounted at both ends. This design allows the Phillips head gear 5 to rotate freely and smoothly 360° with the support of the bearings, effectively reducing transmission resistance and significantly improving power transmission efficiency. Similarly, the square head gear 17 also adopts the same bearing connection structure and has excellent rotational performance. In actual operation, when the operator manually drives the square head gear 17 to rotate, the power can be transmitted to the Phillips head gear 5 instantly and stably through the precisely designed gear transmission system, causing the two to rotate synchronously. In this way, the Phillips head slot 7 installed at the end of the first connecting shaft can accurately fit the Phillips head screw in the narrow space, realizing the quick disassembly and installation of the screw, significantly improving work efficiency, and effectively solving the problem of traditional tools being unable to reach narrow parts.

[0026] like Figures 1-3 As shown, its characteristic is that the number of gear transmission groups is odd.

[0027] It should be noted that the entire tool is made of stainless steel or a material of equivalent strength, which can withstand a certain torque without damage. This ensures that the tool can maintain its structural integrity even when faced with large torques during use, extending its service life and improving work efficiency.

[0028] It should be further explained that one end of the tool is a Torx screwdriver slot (7) that matches the size of the bolt head, and the other end is a square hole that mates with a 1 / 4 small quick wrench. The middle is connected by an odd number of transmission gears, so that the large gears at both ends rotate in the same direction. This design can unscrew the screw with the help of the small quick wrench in a large radial space of the screw, which solves the problem that existing tools lack the function of screw radial extension and effectively copes with the situation where the screw head space is narrow and there are operational obstacles in both the axial and radial directions.

[0029] It should be noted that the entire structure can be as follows: Figure 3 As shown, it is designed with an L-shaped structure for easy use in different locations.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A fastener dismounting tool for narrow space, comprising a frame (1), a cover plate (2), a gear transmission group, a keyhole gear (5) and a square hole gear (17), characterized in that, The frame (1) is a rectangular cavity structure with one end open. The first connection port (3) of the frame (1) is provided with a plum blossom gear (5), the second connection port (10) is provided with a gear transmission group, and the third connection port (15) is provided with a square gear (17). The first gear (6) on the plum blossom gear (5) is connected to the second gear (18) on the square gear (17) through the gear transmission group to form a transmission structure. The gear transmission assembly includes a first bearing (11), a transmission gear (12), and a second bearing (13). The transmission gear (12) is mounted on the connecting shaft of the second connection port (10) via the first bearing (11) and the second bearing (13). The opening of the frame (1) is connected to the cover plate (2) by fixing screws (14).

2. The fastener removal tool for use in a confined space according to claim 1, wherein The frame (1) has several second connection ports (10) inside, and connection openings are provided on both sides of the second connection ports (10).

3. The fastener installation and removal tool for tight spaces according to claim 2, wherein The transmission gear (12) is connected to another transmission gear through a connection opening on the side.

4. The fastener removal tool for use in tight spaces according to claim 3, wherein The two ends of the plum blossom gear (5) are provided with a first connecting shaft. The first connecting shaft is connected to the first connecting port (3) and the fourth connecting port (9) on the cover plate (2) through the third bearing (4) and the fourth bearing (8), respectively. The first connecting shaft is provided with a through hole, and the inside of the through hole is provided with a plum blossom internal hexagonal groove (7).

5. The fastener installation and removal tool for tight spaces of claim 1, wherein, The square gear (17) has a second connecting shaft at both ends, and the second connecting shaft is connected to the third connecting port (15) and the fifth connecting port (20) on the cover plate (2) respectively through the fifth bearing (16) and the sixth bearing (19); The second connecting shaft is provided with a through hole, and the inside of the through hole is provided with a square opening (21).

6. The fastener installation and removal tool for tight spaces of claim 1, wherein, The number of gear transmission sets is odd.

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