Assembly wrenching and rotating tool suitable for extending into inner wall of limited gap space for operation

Abstract

According to the assembling wrenching and rotating tool suitable for stretching into the inner wall of the limited gap space for operation, a hole plate (3) is installed at the front end of a handle (1), a tool bit (4) is installed on the hole plate (3), and an installation hole (31) is formed in the middle of the front face of the hole plate (3); the tool bit (4) is mounted in the mounting hole (31); the central axis of the pore plate (3) and the central axis of the tool bit (4) are perpendicular to the central axis of the handle (1). The tool bit is arranged at the front end of the long rod, so that the whole structure is simple and compact, and the characteristics of entering and exiting in a narrow high-constraint gap limited space and flexible operation are achieved. Standard mounting holes are designed in the pore plate so as to adapt to all types of universal replaceable screwdriver bits including plain-end screwdriver bits, cross screwdriver bits and the like. The front end of the overall structure is flat, and the structural strength is improved; the application range is wider; and the working efficiency is obviously improved, and the standardization and safety of operation are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of manual tools for fastening, connecting, disassembling or clamping in the IPC classification B25B17 / 00, and particularly relates to an innovative improvement technology for the structure of a screwdriver tool suitable for assembling and disassembling common fastener structures in narrow and limited spaces. Background Art

[0002] At present, due to the spatial structure arrangements of products or devices based on various compact design requirements, there have emerged many highly constrained assembly scenarios in various limited spaces. As shown in the attached Figure 1 Hidden screw HS structures are installed on the inner wall of the limited gap space NG.

[0003] The gap of the limited gap space is narrow, and it is not convenient to install or disassemble the screws on the inner wall with conventional tools. Obviously, general screwdrivers cannot fully meet the usage requirements. For the needs of specific narrow spaces, there may also be some wrenches with special designs on the market, such as wrenches with flexible connecting rods, bendable handles or micro gear drives. These tools can further adapt to the complex and changeable narrow space working environment.

[0004] For other existing improved tools, including those with installed rotating connectors, it is inevitable that they will affect the applicability and operating effect of the tools in narrow spaces, and even cannot be applied to the fastening and disassembling of fasteners in structures with narrow spaces.

[0005] There are few publicly disclosed patent applications for applicable improvement technologies. The Chinese patent application 202321052781.X proposed by China Yangtze Power Co., Ltd. relates to a knob-type elbow screwdriver for working in narrow spaces, which can disassemble and assemble bolts in narrow space positions. It includes a housing, a first rotating shaft is rotatably installed in the housing, and the first rotating shaft drives the tool holder to rotate through a bevel gear transmission mechanism. There is a hexagonal inner hole in the tool holder, and the hexagonal inner hole matches the corresponding bolt.

[0006] These improvement technologies mainly facilitate the use by designing a series of complex force conduction and adjustment structures. However, due to the great differences in various highly constrained gap structures, even if corresponding complex adjustment structures and functions are designed, it will not significantly improve the universality of applicability. In the case where the upper and lower spaces and the left and right spaces are both restricted, there is a lack of simple and easy-to-use tools to successfully complete the disassembly and assembly of bolts under highly constrained gap structures. Summary of the Utility Model

[0007] In view of the above existing problems and technical requirements, the utility model aims to propose an assembled wrench tool suitable for operating on the inner wall of a limited gap space to make up for the lack of corresponding special tools.

[0008] To this end, the utility model includes: a handle, an orifice plate, and a tool bit. The orifice plate is installed at the front end of the handle, and the tool bit is installed on the orifice plate. An installation hole is formed in the middle of the front surface of the orifice plate; the tool bit is installed in the installation hole; the central axes of the orifice plate and the tool bit are perpendicular to the central axis of the handle.

[0009] Wherein, the front end of the handle is connected to the outer wall of one side of the orifice plate through a long rod. The front end of the long rod is connected to the orifice plate through a socket. The connection structure of the socket includes plug-in connection or screw connection.

[0010] At least one outer wall of the orifice plate is provided with a set screw hole, and the inner end of the set screw hole communicates with the installation hole; a set screw is installed in the set screw hole; the inner end of the set screw abuts against the outer wall of the tool bit.

[0011] A magnetic suction seat is fixed at the bottom of the installation hole.

[0012] A telescopic shaft hole is axially formed in the handle; the long rod is slidably inserted into the telescopic shaft hole.

[0013] Furthermore, to achieve the above object, the utility model is configured as:

[0014] In particular, the overall height of the orifice plate after installing the tool bit, and the maximum outer dimension of the orifice plate are less than the average gap width of the limited gap space. Preferably, the thickness of the orifice plate is the same as the outer diameters of the long rod and the socket.

[0015] In particular, the tool bit is designed as a thin plate structure; the overall thickness of the orifice plate after fixing the tool bit in the installation hole is not greater than 1.5 times the thickness of the orifice plate. Preferably, the height of the tool bit is not greater than the depth of the installation hole.

[0016] In particular, the installation hole is a standard internal hexagon or internal square hole, and the tool bit includes a general flat mouth and a cross standard replacement screwdriver head structure.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By providing a tool bit that can be installed at an angle at the front end of the long rod, the overall structure is kept simple and compact, so as to highlight the characteristics of entering and exiting and operating flexibly in a narrow and highly restrictive gap limited space. Standard installation holes are designed on the orifice plate to adapt to various general types of replacement screwdriver heads including flat mouths and crosses. The front end of the overall structure is designed to be flat, which improves the structural strength; the application range is wider; the working efficiency is significantly improved, and the standardization and safety of the operation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are schematic and should not be construed as any limitation to the present utility model. By referring to the following drawings, it helps readers understand the embodiments of the present utility model and further understand the advantages and technical features of the present utility model.

[0020] Figure 1Schematic diagram of the structure of the concealed screw HS installed on the inner wall of the NG with a limited gap space.

[0021] Figure 2 Schematic diagram of the structure of Embodiment 1 of the present utility model.

[0022] Figure 3 Schematic diagram of the orifice plate structure in Embodiment 1 of the present utility model.

[0023] Figure 4 Front view structure diagram of the set screw for installing the orifice plate in Embodiment 1 of the present utility model.

[0024] Figure 5 Front view structure diagram of the cutter head for installing the orifice plate in Embodiment 1 of the present utility model.

[0025] Figure 6 For Figure 5 Top view structure diagram.

[0026] Figure 7 Schematic diagram of the orifice plate structure in Embodiment 2 of the present utility model.

[0027] Figure 8 Schematic diagram of the handle structure in Embodiment 3 of the present utility model.

[0028] Reference numerals include:

[0029] 1 - handle, 2 - long rod, 3 - orifice plate, 4 - cutter head, 5 - socket, 6 - set screw; 11 - telescopic shaft hole;

[0030] 31 - mounting hole, 32 - set hole, 33 - magnetic attraction seat. Detailed implementation manners

[0031] It should be noted that:

[0032] The terms "including" and "having" and any of their variations are intended to cover other possible alternatives under the same logic that are not listed. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0033] In the description of the present utility model, 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, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. 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 component 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. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. 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 situations.

[0035] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below 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 of the embodiments.

[0036] Unless otherwise limited, all the technologies and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present utility model belongs. When there is a conflict, the definition in this specification shall prevail.

[0037] The principle of the present utility model lies in that in the complex and relatively difficult working conditions of installing the concealed screw HS structure on the inner wall of the limited gap space NG, the operator faces greater pressure. And for the same working hours and operation processes, it is necessary to be free from the constraints of this link. It is inevitable to design the structure and function in the simplest way to adapt to and simply and efficiently solve the simple and effective completion of operations in the complex environment of high-constraint assembly scenarios in the limited space of narrow gaps.

[0038] The utility model includes: a handle 1, an orifice plate 3, and a cutter head 4. The orifice plate 3 is installed at the front end of the handle 1, and the cutter head 4 is installed on the orifice plate 3. During operation, the central axes of the orifice plate 3 and the cutter head 4 are perpendicular to the central axis of the handle 1.

[0039] In the utility model, during operation, the orifice plate 3 with the cutter head 4 installed at the front end extends inward into a limited gap space NG, and the top of the cutter head 4 accurately engages with the corresponding groove at the top of a concealed screw HS installed on the side wall in the limited gap space NG. By tightly holding the handle 1 and turning the knob, the concealed screw HS can be disassembled.

[0040] The utility model is applicable to positions where socket wrenches and offset ring spanners cannot be used for operation, especially narrow small spaces that are so small that even fingers cannot reach for operation, particularly in cases where bolts or nuts must be inserted from the side. During use, ensure that the structural dimensions and shapes of the cutter head 4 and the concealed screw HS are fully matched to prevent slipping and causing damage to the structure of the concealed screw HS or the inner wall structure of the limited gap space NG. It is strictly prohibited to sleeve an extended pipe on the wrench to extend the length and increase the torque, and it is also prohibited to strike the wrench to increase the torque.

[0041] In the utility model, to maintain the simplicity, usability, and reliability of the overall product, while ensuring the basic functions, further limit the addition of improved structures only at a certain local part to avoid falling into the deficiencies of the prior art. The choice of which wrench depends on specific operation requirements and space limitations. In practical applications, factors such as the structural characteristics, usability, and safety of the wrench should be comprehensively considered to ensure the efficiency and safety of the operation.

[0042] The following further illustrates the utility model with reference to the drawings and embodiments.

[0043] Although the embodiments of the utility model are described with reference to the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

[0044] The content of the utility model can be more easily understood by referring to the following preferred implementation methods and included embodiments of the utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the utility model belongs. When there is a conflict, the definition in this specification shall prevail.

[0045] Embodiment 1: As shown in the appendix Figure 2 、 3As shown in FIGS. 4, 5, and 6, the front end of the handle 1 is connected to the outer wall of one side of the orifice plate 3 through the long rod 2; a mounting hole 31 is formed in the middle of the front surface of the orifice plate 3; a cutter head 4 is mounted in the mounting hole 31; at least one outer wall of the orifice plate 3 is provided with a set hole 32, and the inner end of the set hole 32 communicates with the mounting hole 31; a set screw 6 is mounted in the set hole 32; the inner end of the set screw 6 abuts against the outer wall of the cutter head 4 so that the cutter head 4 is stably fastened in the mounting hole 31.

[0046] In the embodiment of the present utility model, the mounting hole 31 is a standard internal hexagon or internal square hole to adapt to the cutter head 4 of general standard replacement screwdriver head structures including flat mouth, cross, etc.

[0047] In the embodiment of the present utility model, further, the front end of the long rod 2 is connected to the orifice plate 3 through a socket 5. In particular, the connection structure of the socket 5 includes plugging or screwing.

[0048] Preferably, the surface of the handle 1 is made of anti-slip material, and the long rod 2 and the orifice plate 3 are made of spring steel material.

[0049] Preferably, the length of the long rod 2 is sufficient to extend into the limited gap space NG. Preferably, the overall height of the orifice plate 3 after mounting the cutter head 4, and the maximum outer side length of the shape of the orifice plate 3 are less than the average gap width of the limited gap space. Preferably, the thickness of the orifice plate 3 is the same as the outer diameters of the long rod 2 and the socket 5.

[0050] The implementation principle of this embodiment is: when it is necessary to disassemble and assemble the concealed screw HS in the limited gap space NG, the orifice plate 3 is pushed by the long rod 2 to extend into the limited gap space NG. Moreover, the orifice plate 3 can rotate freely around the long rod 2 without interference and collision with the inner wall of the limited gap space NG.

[0051] Embodiment 2: As shown in the appendix Figure 7 A mounting hole 31 is formed in the middle of the front surface of the orifice plate 3; a magnetic attraction seat 33 is fixed at the bottom of the mounting hole 31; a cutter head 4 is mounted in the mounting hole 31; the cutter head 4 is adsorbed and fixed in the magnetic attraction seat 33.

[0052] Embodiment 3: As shown in the appendix Figure 8 A telescopic shaft hole 11 is axially formed in the handle 1; the long rod 2 is slidably inserted into the telescopic shaft hole 11.

[0053] Embodiment 4: In Embodiment 1 or 2, the cutter head 4 is designed as a thin plate structure. The overall thickness of the orifice plate 3 after fixing the cutter head 4 in the mounting hole 31 is not greater than 1.5 times the thickness of the orifice plate 3. Preferably, the overall thickness of the orifice plate 3 after fixing the cutter head 4 in the mounting hole 31 still remains the thickness of the orifice plate 3 itself. That is, the height of the cutter head 4 is not greater than the depth of the mounting hole 31.

[0054] In the embodiment of the present utility model, after the cutter head 4 is fixed in the mounting hole 31, the hole plate 3 still maintains a relatively thin outer shape structure, and can be smoothly inserted into the limited gap space NG without interference. Moreover, after aligning the mounting hole 31 and the cutter head 4 with the concealed screw HS, the knob is pressed to complete disassembly and assembly.

[0055] Based on the above embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model. This is to avoid exhausting all implementation manners that are unnecessary and impossible to fully list.

Claims

1. A combined wrench tool suitable for inserting into the inner wall of a limited gap space for operation, comprising a handle (1), a perforated plate (3) and a cutter head (4); characterized in that: A hole plate (3) is installed at the front end of the handle (1), and a cutter head (4) is installed on the hole plate (3): a mounting hole (31) is opened in the middle of the front side of the hole plate (3); the cutter head (4) is installed in the mounting hole (31); and the central axis of the hole plate (3) and the cutter head (4) is perpendicular to the central axis of the handle (1).

2. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: The front end of the handle (1) is connected to the outer wall of one side of the orifice plate (3) via a long rod (2).

3. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: A fixing hole (32) is formed on at least one outer wall of the orifice plate (3), the inner end of the fixing hole (32) being connected to the mounting hole (31); a fixing screw (6) is installed in the fixing hole (32); and the inner end of the fixing screw (6) is pressed against the outer wall of the cutter head (4).

4. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: A magnetic seat (33) is fixed at the bottom of the mounting hole (31).

5. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: A telescopic shaft hole (11) is axially opened in the handle (1); the long rod (2) is slidably inserted in the telescopic shaft hole (11).

6. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: The overall height of the orifice plate (3) after the cutter head (4) is installed, and the maximum side length of the outer shape of the orifice plate (3) are smaller than the average gap width of the limited gap space.

7. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: The cutter head (4) is designed as a thin sheet structure; after the cutter head (4) is fixed in the mounting hole (31), the overall thickness of the orifice plate (3) is no greater than 1.5 times the thickness of the orifice plate (3).

8. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 1, characterized in that: The mounting hole (31) is a standard inner hexagonal or inner square hole, and the cutter head (4) is a structure including a universal flat-blade and a cross-blade standard replacement screwdriver head.

9. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space and operating according to claim 2, characterized in that: The front end of the long rod (2) is connected to the orifice plate (3) via a socket (5); the connection structure of the socket (5) includes plug-in connection or screw-on connection.

10. The assembled wrench tool suitable for inserting into the inner wall of a limited gap space for operation according to claim 7, characterized in that: The height of the cutter head (4) is not greater than the depth of the mounting hole (31).

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