Multipurpose screwdriver

Abstract

The utility model discloses a multi-purpose screwdriver, relates to the technical field of elevator installation, and aims to solve the problems that when a worker holds the end part of the screwdriver to rotate, a certain spatial distance is usually required behind the screwdriver, and due to the influence of the spatial position in an elevator, when the installation space between the screwdriver and a screw is insufficient, the operation is relatively inconvenient and is limited by the space. The screwdriver comprises a screw grip, a screwdriver blade and a length adjusting piece, the length adjusting piece comprises a one-way threaded rod rotationally arranged in the screw grip, the outer side of the one-way threaded rod is sleeved with an adjusting sleeve block in a circle of threaded sleeve, and a push rod is fixedly connected to the outer side wall of the adjusting sleeve block; according to the multifunctional screwdriver, the screwdriver blade with the adjustable length position is formed, the length position of the screwdriver blade can be adjusted according to the actual use requirement, and the multifunctional screwdriver can adapt to different installation condition requirements conveniently.

Description

Technical Field

[0001] This application relates to the field of elevator installation technology, specifically a multi-purpose screwdriver. Background Technology

[0002] A screwdriver is a common tool mainly used to tighten screws into place. It usually has a thin wedge-shaped head that allows the screwdriver tip to be inserted into the slot or recess of the screw head. There are many types of screwdrivers, among which hex screwdrivers are the most common and frequently used in daily life. The hexagonal design of its screw head provides advantages such as preventing slippage, ensuring a secure rotation, and ease of use during disassembly and assembly. Screwdrivers have a wide range of applications, generally used in the installation or maintenance of various machinery and elevators, making them an indispensable tool for the installation of various mechanical equipment.

[0003] Existing open-end hex screwdrivers have a single function and are designed as a fixed-length straight line. When used for installation in elevator shafts, the screwdriver is held in the hand, so workers usually need a certain amount of space behind the screwdriver when rotating it. Due to the limited space inside the elevator, when there is insufficient space between the screw and the user, the user needs to repeatedly hold the screwdriver to the side and rotate it, which is inconvenient and limited by space. Although users can adjust by changing to different length screwdrivers, it is time-consuming to go back and forth to pick up or select tools, and it is also inconvenient to move around freely while in the installation process. Utility Model Content

[0004] The purpose of this application is to provide a multi-purpose screwdriver to solve the problem mentioned in the background art, where when workers hold the end of the screwdriver to rotate it, there is usually a certain space behind the screwdriver. Due to the influence of the space position in the elevator, when the installation space between the screw and the screw is insufficient, the user needs to repeatedly hold the screwdriver to the side to rotate it, which is inconvenient and limited by space. Although the user can adjust by changing to different lengths and models of screwdrivers, it is time-consuming to go back and forth to pick up or select tools, and it is also inconvenient to move around freely because of the installation state.

[0005] To achieve the above objectives, this application provides the following technical solution: a multi-purpose screwdriver, including a screw handle, a screwdriver head, and a length adjustment component. The screwdriver head is disposed at one end outside the screw handle, and the length adjustment component is disposed inside the screw handle, with a portion of the length adjustment component connected to the screwdriver head. The length adjustment component includes a one-way threaded rod rotatably disposed inside the screw handle. An adjustment sleeve is threaded around the outer circumference of the one-way threaded rod. A push rod is fixedly connected to the outer wall of the adjustment sleeve. The end of the push rod away from the adjustment sleeve extends to the outside of the screw handle and is fixedly connected to a connector. An adjustment handle is rotatably connected to the outer wall of the screw handle away from the screwdriver head. Rotating the adjustment handle causes the one-way threaded rod to rotate, thereby pushing the adjustment sleeve to move laterally.

[0006] By adopting the above technical solution, the adjusting sleeve and the push rod can be moved by rotating the adjusting handle.

[0007] Preferably, the screw handle has an internal mounting cavity, one end of the one-way threaded rod is rotatably connected to the top surface inside the mounting cavity, and the other end of the one-way threaded rod extends to the outside of the screw handle and is fixedly connected to the end of the adjusting handle.

[0008] By adopting the above technical solution, when the adjusting handle is held and rotated, the one-way threaded rod is driven to rotate.

[0009] Preferably, the push rod is provided in several groups, and the several groups of push rods are equally distributed around the one-way threaded rod as the center. The mounting cavity has several groups of movable slots on the side wall near the push rod. The several groups of movable slots communicate with the outside of the screw handle. The position and size of the movable slots are adapted to the push rod.

[0010] By adopting the above technical solution, the adjusting sleeve can push the push rod to move inside and outside the screw handle.

[0011] Preferably, the ends of several sets of push rods away from the adjusting sleeve block all penetrate the interior of the movable slot and extend to the exterior of the screw handle. The connector is located at the end of the push rod away from the adjusting sleeve block, and the side of the connector away from the push rod is fixedly connected to the end of the screwdriver head.

[0012] By adopting the above technical solution, the push rod can push the connector to move, and the connector can push the screwdriver head to adjust its length and position.

[0013] Preferably, the adjusting sleeve has a threaded groove inside, and the one-way threaded rod passes through the inside of the threaded groove and is threadedly connected to the inside of the threaded groove.

[0014] By adopting the above technical solution, the unidirectional threaded rod rotates and pushes the adjusting sleeve block to move laterally inside the mounting cavity.

[0015] Preferably, the inner wall of the mounting cavity is provided with a plurality of limiting grooves, and a limiting slider is slidably provided on the inner side of each plurality of limiting grooves. The end of the limiting slider away from the limiting groove extends to the outer side of the adjusting sleeve block and is fixedly connected to the outer side wall of the adjacent adjusting sleeve block.

[0016] By adopting the above technical solution, the adjusting sleeve can be limited to prevent it from rotating laterally.

[0017] Preferably, the screw handle has several sets of second fixing ports on the side near the adjusting handle, and the adjusting handle has a first fixing port inside. The shape and size of the second fixing ports are compatible with those of the first fixing ports.

[0018] By adopting the above technical solution, it is convenient to insert the fixing rod into the interior of the second fixing socket and the first fixing socket in sequence.

[0019] Preferably, a fixing rod is inserted into the interior of the first fixing socket, one end of which extends into the interior of a second fixing socket and is in close contact with the inner wall of the second fixing socket.

[0020] By adopting the above technical solution, a limiting function can be provided for the rotating adjusting handle.

[0021] Compared with the prior art, the beneficial effects of this application are as follows: by holding the adjusting handle and rotating it continuously, the adjusting handle drives the one-way threaded rod to rotate synchronously, pushing the adjusting sleeve block to move back and forth along the length direction of the one-way threaded rod. When the adjusting sleeve block moves, the push rod pushes the connecting head to move, and the connecting head pushes the length position of the screwdriver head to move until it is adjusted to a length position that is convenient for the operator to use. This constitutes an adjustable length screwdriver head. The length position of the screwdriver head can be adjusted according to actual usage needs, and the total length of the screw handle and screwdriver head can be shortened or extended, which is convenient to adapt to different installation needs and reduces the inconvenience of operation due to space constraints. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the appearance structure of this application;

[0023] Figure 2 This is a partial cross-sectional structural diagram of this application;

[0024] Figure 3 This is an enlarged schematic diagram of section A in this application;

[0025] Figure 4 This is a cross-sectional structural diagram of the length adjustment component of this application;

[0026] Figure 5 This is an enlarged schematic diagram of section B in this application.

[0027] In the diagram: 1. Screw handle; 101. Mounting cavity; 102. Moving slot; 103. Limiting slide; 104. Second fixing socket; 2. Screwdriver head; 3. Length adjustment component; 301. One-way threaded rod; 302. Adjusting sleeve; 303. Push rod; 304. Connector; 305. Adjusting round handle; 306. Threaded slot; 307. Limiting slider; 308. First fixing socket; 309. Fixing rod. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] Example 1

[0031] Please see Figure 1-5 This embodiment provides a multi-purpose screwdriver technical solution: a multi-purpose screwdriver includes a screw handle 1, a screwdriver head 2, and a length adjustment component 3. The length adjustment component 3 is disposed inside the screw handle 1, and part of the length adjustment component 3 is connected to the screwdriver head 2. When the screw handle 1 is gripped and rotated, the screwdriver head 2 can be rotated synchronously through the length adjustment component 3, which is convenient for the installation or maintenance of equipment such as elevators. The outer wall of the screw handle 1 is also provided with friction texture, which plays a certain role in anti-slip. The screw handle 1 has an installation cavity 101 inside. The opening structure of the installation cavity 101 is hexagonal columnar, and its opening shape is adapted to the shape of the adjusting sleeve 302, which plays a limiting role for the adjusting sleeve 302. The end of the screwdriver head 2 away from the screw handle 1 is hexagonal, which makes it easy to insert the screwdriver head 2 into the slot of the screw head for installation or disassembly.

[0032] Example 2

[0033] Please see Figure 1-5The length adjustment component 3 includes a one-way threaded rod 301 rotatably mounted inside the screw handle 1 via a bearing. One end of the one-way threaded rod 301 is rotatably connected to the top surface inside the mounting cavity 101 via a bearing. The one-way threaded rod 301 is located at the center position inside the mounting cavity 101. An adjustment handle 305 is rotatably connected to the outer wall of the screw handle 1 away from the screwdriver head 2 via a bearing. The other end of the one-way threaded rod 301 extends to the outside of the screw handle 1 and is connected to the end of the adjustment handle 305 via a screw. Therefore, when gripped... When the adjusting handle 305 is rotated, it drives the one-way threaded rod 301 to rotate. An adjusting sleeve 302 is fitted around the outer circumference of the one-way threaded rod 301. The adjusting sleeve 302 has a threaded groove 306 inside. The one-way threaded rod 301 passes through the inside of the threaded groove 306 and is threadedly connected to the inner side of the threaded groove 306. When the one-way threaded rod 301 is rotated, it can push the adjusting sleeve 302 to move back and forth along the length of the one-way threaded rod 301.

[0034] A push rod 303 is connected to the outer wall of the adjusting sleeve 302 by screws. Several sets of push rods 303 are arranged equidistantly around the one-way threaded rod 301. When the adjusting sleeve 302 moves, it drives the sets of push rods 303 to move inside or outside the screw handle 1. Several sets of moving slots 102 are opened on the side wall of the mounting cavity 101 near the push rods 303. These moving slots 102 communicate with the outside of the screw handle 1, allowing movement... The slot 102 and the push rod 303 are matched in position and size. The number of movable slots 102 is the same as the number of push rods 303. When the adjusting sleeve 302 pushes the push rod 303 to move, the part of the push rod 303 away from the adjusting sleeve 302 slides inside the movable slot 102. The ends of several sets of push rods 303 away from the adjusting sleeve 302 all pass through the interior of the movable slot 102 and extend to the exterior of the screw handle 1. The movable slot 102 is used to push... The rod 303 and the adjusting sleeve 302 serve as limiters to prevent the push rod 303 from rotating on the side during the rotation of the screwdriver head 2, thus preventing the adjusting sleeve 302 from moving. The end of the push rod 303 away from the adjusting sleeve 302 extends to the outside of the screw handle 1 and is connected to a connector 304 by a screw. The connector 304 is located at the end of the push rod 303 away from the adjusting sleeve 302 and has a hexagonal shape. The side of the connector 304 away from the push rod 303 is welded to the end of the screwdriver head 2. Therefore, rotating the adjusting handle 305 drives the one-way threaded rod 301 to rotate, thereby pushing the adjusting sleeve 302 to move laterally. The adjusting sleeve 302 pushes the connector 304 and the push rod 303 to move synchronously, thereby using the connector 304 to push the screwdriver head 2 to move and adjust the length position of the screwdriver head 2 to adapt to different usage scenarios and facilitate the operator's hand rotation operation of the screw handle 1.

[0035] Example 3

[0036] Please see Figure 1-5The inner wall of the mounting cavity 101 is provided with several sets of limiting slide grooves 103. A limiting slider 307 is slidably mounted on the inner side of each of the limiting slide grooves 103. The positions of the limiting slide grooves 103 correspond to the six side walls of the adjusting sleeve block 302. One end of the limiting slider 307, away from the limiting slide groove 103, extends to the outer side of the adjusting sleeve block 302 and is connected to the outer side wall of the adjacent adjusting sleeve block 302 by screws. When the adjusting sleeve block 302 moves, it drives the limiting slider 307 to slide inside the limiting slide groove 103, which improves the stability of the limiting slide groove 103 during movement and further limits the movement of the limiting slide groove 103, preventing the screwdriver head 2 from rotating during use. This causes the push rod 303 to rotate on its side. The screw handle 1 has several sets of second-order fixing ports 104 on the side near the adjusting handle 305. These sets of second-order fixing ports 104 are distributed in a circular trajectory around the adjusting handle 305. The adjusting handle 305 has a first-order fixing port 308 inside. A fixing rod 309 is inserted into the first-order fixing port 308. When one end of the fixing rod 309 extends into the interior of a set of second-order fixing ports 104 and is in close contact with the inner wall of the second-order fixing port 104, it can limit the rotation of the adjusting handle 305. When the fixing rod 309 moves laterally out, the adjusting handle 305 can be rotated and adjusted again.

[0037] Working principle: First, move the end of the fixed insertion rod 309 outward laterally to release the limiting measures on the adjusting handle 305. Then, hold the adjusting handle 305 and rotate it continuously. At this time, the adjusting handle 305 drives the one-way threaded rod 301 to rotate synchronously, pushing the adjusting sleeve block 302 to move back and forth along the length direction of the one-way threaded rod 301.

[0038] Secondly, when the adjusting sleeve 302 moves, it pushes several sets of push rods 303 to move. At this time, part of the push rod 303 moves inside and outside the moving slot 102. The movement of the push rod 303 pushes the position of the connector 304 to move, and the connector 304 pushes the length position of the screwdriver head 2 to move.

[0039] Finally, adjust the length of the screwdriver head 2 according to actual usage requirements until it is adjusted to a length that is convenient for the operator to use. Stop rotating the adjusting handle 305, hold the fixing rod 309, align it with the inside of the first fixing socket 308 and insert it horizontally until the end of the fixing rod 309 is inserted into the inside of the second fixing socket 104, thus completing the limiting work of the adjusting handle 305. At this time, hold the screw handle 1 again to drive the screwdriver head 2 to rotate for installation, and finally complete the work.

[0040] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-purpose screwdriver, characterized in that the screwdriver... include: Screw grip (1); A screwdriver bit (2) is disposed at one end outside the screw handle (1); A length adjustment component (3) is disposed inside the screw handle (1), and part of the length adjustment component (3) is connected to the screwdriver head (2). The length adjustment component (3) includes a one-way threaded rod (301) rotatably disposed inside the screw handle (1). An adjustment sleeve (302) is threaded around the outer side of the one-way threaded rod (301). A push rod (303) is fixedly connected to the outer wall of the adjustment sleeve (302). One end of the push rod (303) away from the adjustment sleeve (302) extends to the outside of the screw handle (1) and is fixedly connected to a connector (304). An adjustment handle (305) is rotatably connected to the outer wall of the screw handle (1) away from the screwdriver head (2). Rotating the adjustment handle (305) drives the one-way threaded rod (301) to rotate to push the adjustment sleeve (302) to move laterally.

2. The multi-purpose screwdriver according to claim 1, characterized in that: The screw handle (1) has an installation cavity (101) inside. One end of the one-way threaded rod (301) is rotatably connected to the top surface inside the installation cavity (101). The other end of the one-way threaded rod (301) extends to the outside of the screw handle (1) and is fixedly connected to the end of the adjusting handle (305).

3. A multi-purpose screwdriver according to claim 2, characterized in that: The push rod (303) is provided in several groups, and the push rod (303) is distributed at equal intervals around the one-way threaded rod (301) as the center. The mounting cavity (101) has several groups of moving slots (102) on the side wall near the push rod (303). The moving slots (102) are connected to the outside of the screw handle (1). The position and size of the moving slots (102) are adapted to the push rod (303).

4. A multi-purpose screwdriver according to claim 3, characterized in that: Several sets of push rods (303) have their ends away from the adjusting sleeve (302) passing through the interior of the moving slot (102) and extending to the exterior of the screw handle (1). The connector (304) is located at the end of the push rod (303) away from the adjusting sleeve (302), and the side of the connector (304) away from the push rod (303) is fixedly connected to the end of the screwdriver head (2).

5. A multi-purpose screwdriver according to claim 1, characterized in that: The adjusting sleeve (302) has a threaded slot (306) inside, and the one-way threaded rod (301) is disposed inside the threaded slot (306) and is threadedly connected to the inner side of the threaded slot (306).

6. A multi-purpose screwdriver according to claim 2, characterized in that: The inner wall of the mounting cavity (101) is provided with several sets of limiting slide grooves (103). The inner side of each of the several sets of limiting slide grooves (103) is provided with a limiting slider (307). The end of the limiting slider (307) away from the limiting slide groove (103) extends to the outer side of the adjusting sleeve (302) and is fixedly connected to the outer side wall of the adjacent adjusting sleeve (302).

7. A multi-purpose screwdriver according to claim 1, characterized in that: The screw handle (1) has several sets of second fixing ports (104) on the side near the adjusting handle (305), and the adjusting handle (305) has a first fixing port (308) inside. The second fixing ports (104) and the first fixing ports (308) are compatible in shape and size.

8. A multi-purpose screwdriver according to claim 7, characterized in that: A fixing rod (309) is inserted into the first fixing socket (308). One end of the fixing rod (309) extends into the interior of a set of second fixing sockets (104) and is in close contact with the inner wall of the second fixing socket (104).

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