A compact space installation tool

By designing a handheld lever, telescopic mechanism, and adjustment mechanism for installation in confined spaces, the problem of limited operation in confined spaces is solved, enabling flexible access and multi-angle operation of the tool, and adapting to the screw installation needs of different depths and angles.

CN224527071UActive Publication Date: 2026-07-21TIANXING YUELI MECHANICAL & ELECTRICAL EQUIPMENT INSTALLATION (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANXING YUELI MECHANICAL & ELECTRICAL EQUIPMENT INSTALLATION (SUZHOU) CO LTD
Filing Date
2025-06-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing confined space installation tools are limited in operation within deep or shallow confined spaces and can only operate at a single fixed angle, thus limiting their scope of use.

Method used

A confined space installation tool was designed, comprising a handheld lever, a telescopic mechanism, and an adjustment mechanism. The telescopic mechanism adjusts the tool length, and the adjustment mechanism flexibly adjusts the angle of the electric screwdriver to adapt to installation needs at different depths and angles.

Benefits of technology

It enables the tool to be used flexibly and from multiple angles in confined spaces, improving its applicability and operational accuracy, and adapting to screw installation needs at different depths and angles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a small component installation related technical field especially relates to a narrow space installation tool, including handheld pole, the inner wall of handheld pole is equipped with telescopic mechanism, one end of telescopic mechanism is equipped with adjusting mechanism. The utility model discloses the setting of telescopic mechanism, the overall length of the tool is adjusted, the movable rod is slid in the handheld pole by pressing the limiting column, the working length of the tool can be easily changed, so that the installation tool can be in-depth to the narrow space of different depth and carry out the operation, when adjusting the length, by rotating the limiting column and making it along the limiting ring groove movement, and with the limiting column and limiting groove coincidence as reference datum, the position of movable rod is accurately judged by the operator, the difficulty of adjustment is reduced, and the adjusting mechanism is convenient for adjusting the angle of electric screwdriver, so that the tool can flexibly cope with the screw installation demand of different angles in the narrow space.
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Description

Technical Field

[0001] This utility model relates to the technical field of micro-component installation, and in particular to an installation tool for confined spaces. Background Technology

[0002] In the process of mechanical manufacturing and assembly, various kinds of nuts are used to fasten parts. When installing nuts in a confined space, the limited space restricts the movement angle of the tool, making it impossible to operate in the conventional tightening method. Therefore, a confined space installation tool is particularly needed.

[0003] A tool for installing and removing nuts in confined spaces, authorized by announcement number CN222328021U, includes a clamp head structure and a control rod structure. The clamp head structure comprises a sleeve head, grippers, guide blocks, and springs. The sleeve head has an opening slot, a guide slot, a limiting slot, a large sliding slot, and a small sliding slot, used for installing the grippers and guide blocks respectively. The sleeve head is hexagonal in shape. The grippers are installed in the opening slot of the sleeve head, and the guide blocks are installed in the guide slots. There are two grippers, arranged symmetrically. The guide blocks and grippers are connected by a pin. The control rod structure includes a rotating head, a lever, a wire control block, a sliding paddle, a sliding column, and a wire. The rotating head is connected to the sleeve head by a pin, and the wire control block is installed inside to control the wire. The lever is equipped with a sliding paddle and a sliding column to control the opening and closing of the grippers by pulling the wire. This invention has a simple structure, strong versatility, and is very convenient to use, suitable for installing, removing, picking up, and releasing nuts in confined spaces.

[0004] However, the working depth of the above-mentioned device is fixed, which makes it inconvenient to reach the working position in narrow spaces that are too deep or too shallow, thus limiting its scope of use, and it can only be operated at a single fixed angle.

[0005] To address the aforementioned problems, a device for installation in confined spaces is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide an installation tool for confined spaces, so as to solve the problem of existing installation tools for confined spaces mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a confined space installation tool, including a handheld rod, the inner wall of which is provided with a telescopic mechanism, one end of which is fitted with an anti-slip sleeve, one end of which is provided with an adjustment mechanism, and one end of which is provided with an electric screwdriver;

[0008] The telescopic mechanism includes limiting holes on both sides of the hand handle. A movable rod is slidably connected to the inner wall of the hand handle. Limiting posts are provided on both sides of the end of the movable rod away from the adjustment mechanism. A stop block is provided on one side of the limiting post. A spring is sleeved on the surface of the limiting post.

[0009] Preferably, the telescopic mechanism further includes a limiting ring groove formed on the inner wall of the handheld rod, limiting grooves formed at the top and bottom of the inner wall of the handheld rod, a first circular groove formed on both sides of the end of the movable rod away from the adjustment mechanism, and a second circular groove formed on the inner wall of the movable rod.

[0010] Preferably, one side of the limiting post is inserted into the first circular groove, and the other side of the limiting post is inserted into the limiting hole. The stop block is disposed in the second circular groove, and the diameter of the first circular groove is smaller than that of the second circular groove.

[0011] Preferably, one side of the spring is fixedly connected to the stop block, and the other side of the spring is fixedly connected to the side wall of the movable rod.

[0012] Preferably, the limiting groove is provided at the top and bottom of the limiting ring groove, the limiting hole is provided on both sides of the limiting ring groove, and there are seven sets of limiting holes, limiting ring groove and limiting groove.

[0013] Preferably, the adjusting mechanism includes a connector installed at one end of the movable rod, a limiting plate at one end of the connector, a bolt passing through one end of the connector, an arc-shaped block being engaged at one end of the limiting plate, and a nut being threaded onto one side of the bolt.

[0014] Preferably, one end of the electric screwdriver is installed in the opening at one end of the connector by a bolt and a nut.

[0015] Preferably, one end of the electric screwdriver is provided with an arc-shaped block, and the end of the arc-shaped block near the limiting plate is wavy, which facilitates the positioning of the electric screwdriver by the limiting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This confined space installation tool is equipped with a telescopic mechanism, which facilitates adjustment of the overall length of the tool. By pressing the limiting post, the movable rod slides within the hand handle, easily changing the working length of the tool. This allows the installation tool to operate in confined spaces of varying depths, greatly improving its versatility. When adjusting the length, the limiting post is rotated to move along the limiting ring groove. The alignment of the limiting post and the limiting groove serves as a reference, making it easy for the operator to accurately judge the position of the movable rod, reducing the difficulty of adjustment, and enabling the operator to adjust the movable rod to the required length more quickly and accurately.

[0018] The adjustment mechanism allows for easy adjustment of the electric screwdriver's angle, enabling the tool to flexibly handle screw installation needs at different angles in confined spaces. The end of the arc block near the limiting plate is designed with a wave shape. When the electric screwdriver is rotated to the appropriate angle, the limiting plate will lock into the wave-shaped groove of the arc block, achieving initial positioning of the electric screwdriver. The bolt and nut are then used to further fix the angle of the electric screwdriver. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the telescopic mechanism of this utility model;

[0021] Figure 3 This is a cross-sectional view of the handheld handle of this utility model.

[0022] Figure 4 This is a cross-sectional view of the movable rod of this utility model;

[0023] Figure 5 This is a schematic diagram of the adjustment mechanism of this utility model.

[0024] In the diagram: 1. Handheld rod; 2. Telescopic mechanism; 201. Limiting hole; 202. Movable rod; 203. Limiting post; 204. Stop block; 205. Spring; 206. Limiting ring groove; 207. Limiting groove; 208. First circular groove; 209. Second circular groove; 3. Anti-slip sleeve; 4. Adjustment mechanism; 401. Connector; 402. Limiting plate; 403. Bolt; 404. Arc-shaped block; 405. Nut; 5. Electric screwdriver. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example

[0027] like Figure 1-4As shown, the device includes a handheld lever 1, an inner wall of which is provided with a telescopic mechanism 2, one end of which is fitted with an anti-slip sleeve 3, one end of which is provided with an adjustment mechanism 4, and one end of which is provided with an electric screwdriver 5. The telescopic mechanism 2 includes limiting holes 201 on both sides of the handheld lever 1, a movable rod 202 slidably connected to the inner wall of the handheld lever 1, limiting posts 203 on both sides of the end of the movable rod 202 away from the adjustment mechanism 4, a stop block 204 on one side of the limiting post 203, and a spring 205 fitted on the surface of the limiting post 203. The telescopic mechanism 2 also includes a limiting ring groove 206 on the inner wall of the handheld lever 1, limiting grooves 207 on the top and bottom of the inner wall of the handheld lever 1, a first circular groove 208 on both sides of the end of the movable rod 202 away from the adjustment mechanism 4, and a second circular groove 209 on the inner wall of the movable rod 202.

[0028] It should be noted that in this embodiment, when the tool length needs to be adjusted to adapt to the depth of a narrow space, the limiting post 203 is pressed into the movable rod 202. At this time, the spring 205 is stretched, the stop block 204 moves in the second circular groove 209, and the limiting post 203 exits from the limiting hole 201 and returns to the first circular groove 208. The movable rod 202 can slide freely on the inner wall of the handheld rod 1. After the movable rod 202 is stretched or retracted to a suitable length, the limiting post 203 is released, the spring 205 recovers its elastic deformation, and the stop block 204 is pushed so that the limiting post 203 passes through the corresponding limiting hole 201 again, thereby re-fixing the movable rod 202 and the handheld rod 1. Since the limiting hole 201, the limiting ring groove 206 and the limiting groove 207 are all provided in seven sets, it is convenient to provide multiple different length adjustment positions.

[0029] The limiting ring groove 206 and the limiting groove 207 are formed on the inner wall of the handheld rod 1. When adjusting the position of the movable rod 202, when the limiting post 203 exits from the limiting hole 201, the limiting post 203 is rotated and moves along the circular trajectory of the limiting ring groove 206. When one end of the limiting post 203 coincides with the limiting groove 207, it serves as a reference point to help the operator determine the position of the movable rod 202 and then adjust the length of the movable rod 202 as needed. When the limiting post 203 needs to cooperate with the limiting hole 201 at different positions to achieve length adjustment, the cooperation of the limiting ring groove 206 and the limiting groove 207 helps the operator judge whether the movable rod 202 has reached the appropriate adjustment position, improving the accuracy of adjustment. The anti-slip sleeve 3 is used to prevent the operator from slipping due to sweaty hands when using this installation tool.

[0030] like Figure 5As shown, the adjustment mechanism 4 includes a connector 401 installed at one end of the movable rod 202, a limiting plate 402 at one end of the connector 401, a bolt 403 passing through one end of the connector 401, an arc-shaped block 404 being clamped at one end of the limiting plate 402, and a nut 405 being threadedly connected to one side of the bolt 403.

[0031] It should be noted that in this embodiment, when it is necessary to adjust the angle of the electric screwdriver 5, first loosen the nut 405 so that the bolt 403 no longer exerts a tightening force on the electric screwdriver 5 and the connector 401. At this time, the electric screwdriver 5 can rotate around the bolt 403. After rotating the electric screwdriver 5 to a suitable angle, since the end of the arc block 404 near the limiting plate 402 is wavy, the limiting plate 402 will be inserted into the wavy groove of the arc block 404, achieving the initial positioning of the electric screwdriver 5. Then tighten the nut 405 so that the bolt 403 exerts a tightening force on the electric screwdriver 5 and the connector 401, further fixing the angle of the electric screwdriver 5.

[0032] Working principle of this utility model:

[0033] Refer to the instruction manual appendix Figure 1-5 When the tool length needs to be adjusted to fit the depth of a narrow space, press the limiting post 203 into the movable rod 202. At this time, the spring 205 is stretched, the stop block 204 moves in the second circular groove 209, and the limiting post 203 exits from the limiting hole 201 and returns to the first circular groove 208. Rotate the limiting post 203, and the limiting post 203 moves along the circular trajectory of the limiting ring groove 206. When one end of the limiting post 203 coincides with the limiting groove 207, it serves as a reference point to facilitate operation. Personnel determine the position of the movable rod 202, and then adjust the length of the movable rod 202 as needed. After stretching or retracting the movable rod 202 to a suitable length, the limiting post 203 is released, the spring 205 returns to its elastic deformation, and pushes the stop block 204 to make the limiting post 203 pass through the corresponding limiting hole 201 again, thereby re-fixing the movable rod 202 to the hand handle 1. Since the limiting hole 201, the limiting ring groove 206 and the limiting groove 207 are all provided with seven sets, it is convenient to provide multiple different length adjustment positions.

[0034] When the angle of the electric screwdriver 5 needs to be adjusted, first loosen the nut 405 so that the bolt 403 no longer exerts a tightening force on the electric screwdriver 5 and the connector 401. At this time, the electric screwdriver 5 can rotate around the bolt 403. After rotating the electric screwdriver 5 to a suitable angle, since the end of the arc block 404 near the limiting plate 402 is wavy, the limiting plate 402 will be inserted into the wavy groove of the arc block 404, achieving the initial positioning of the electric screwdriver 5. Then tighten the nut 405 so that the bolt 403 exerts a tightening force on the electric screwdriver 5 and the connector 401, further fixing the angle of the electric screwdriver 5.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A confined space installation tool, comprising a handheld pole (1), characterized in that: The inner wall of the handheld rod (1) is provided with a telescopic mechanism (2), one end of the handheld rod (1) is fitted with an anti-slip sleeve (3), one end of the telescopic mechanism (2) is provided with an adjustment mechanism (4), and one end of the adjustment mechanism (4) is provided with an electric screwdriver (5). The telescopic mechanism (2) includes limiting holes (201) on both sides of the hand handle (1), a movable rod (202) is slidably connected to the inner wall of the hand handle (1), and limiting posts (203) are provided on both sides of the end of the movable rod (202) away from the adjustment mechanism (4). A stop block (204) is provided on one side of the limiting post (203), and a spring (205) is sleeved on the surface of the limiting post (203).

2. The confined space installation tool according to claim 1, characterized in that: The telescopic mechanism (2) further includes a limiting ring groove (206) opened on the inner wall of the handheld rod (1), a limiting groove (207) opened at the top and bottom of the inner wall of the handheld rod (1), a first circular groove (208) opened on both sides of the end of the movable rod (202) away from the adjustment mechanism (4), and a second circular groove (209) opened on the inner wall of the movable rod (202).

3. The confined space installation tool according to claim 2, characterized in that: The limiting post (203) is inserted through the first circular groove (208) on one side and through the limiting hole (201) on the other side. The stop block (204) is disposed in the second circular groove (209). The diameter of the first circular groove (208) is smaller than that of the second circular groove (209).

4. The confined space installation tool according to claim 1, characterized in that: One side of the spring (205) is fixedly connected to the stop block (204), and the other side of the spring (205) is fixedly connected to the side wall of the movable rod (202).

5. The confined space installation tool according to claim 2, characterized in that: The limiting groove (207) is provided at the top and bottom of the limiting ring groove (206), and the limiting hole (201) is provided on both sides of the limiting ring groove (206). The limiting hole (201), the limiting ring groove (206) and the limiting groove (207) are all provided in seven sets.

6. The confined space installation tool according to claim 1, characterized in that: The adjustment mechanism (4) includes a connector (401) installed at one end of the movable rod (202). One end of the connector (401) is provided with a limiting plate (402). One end of the connector (401) is provided with a bolt (403). One end of the limiting plate (402) is fitted with an arc-shaped block (404). A nut (405) is threaded onto one side of the bolt (403).

7. The confined space installation tool according to claim 6, characterized in that: One end of the electric screwdriver (5) is installed in the opening at one end of the connector (401) by a bolt (403) and a nut (405).

8. The confined space installation tool according to claim 6, characterized in that: One end of the electric screwdriver (5) is provided with an arc-shaped block (404), and the end of the arc-shaped block (404) near the limiting plate (402) is wavy, which facilitates the positioning of the electric screwdriver (5) by the limiting plate (402).