CN221583485U - Pulling type wrench - Google Patents

Abstract

The utility model relates to a pull-out spanner, which comprises a mounting shaft, wherein a rotating structure is arranged on the mounting shaft; a driving structure is arranged at the top of the mounting shaft; the bottom of the mounting shaft is provided with a connecting structure; the connecting structure is provided with a screwdriver head (1), and the screwdriver head (1) is matched with the nut. The pull type wrench is provided with a mounting shaft, a driving device is arranged on the mounting shaft, and a rotating device is arranged on the mounting shaft; the driving device can drive the installation shaft to rotate in the rotating device, so that the connecting device and the screwdriver head mounted at the bottom of the installation shaft are driven to rotate, and efficient installation and disassembly of the nut are realized. The nut mounting and dismounting device is simple in structure, small in size and large in rotating angle, and can easily finish nut mounting and dismounting in a narrow space.

Description

Pull-out wrench

Technical Field

The utility model belongs to the technical field of disassembly and assembly tools, and specifically relates to a pull-out wrench.

Background Art

A wrench is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to turn bolts, screws, nuts and other threaded fasteners that hold the openings or holes of bolts or nuts. Wrenches are usually made of structural steel of carbon or alloy materials. Wrenches usually have openings or holes for clamping bolts or nuts at one or both ends of the handle. When in use, external force is applied to the handle along the direction of thread rotation to turn the bolt or nut.

At present, the handle of the existing wrench tool is fixedly connected to the clamping part, and in the prior art, the handle of the wrench has a fixed length and a fixed size, which is helpless for screws in micro and narrow spaces.

After searching, the applicant found that a Chinese patent document with publication number CN203062663U disclosed on July 17, 2013 a dual-purpose wrench with both an open-end wrench head and a ring spanner head capable of converting angles, comprising an open-end wrench head connected to a handle via a pin a; and the ring spanner head connected to the handle via a pin b.

This device cannot realize flexible disassembly and assembly of screws in a narrow space.

Utility Model Content

The utility model aims to provide a pull-out wrench which can realize flexible disassembly and assembly of screws in a narrow space.

In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: the utility model includes an installation shaft, on which a rotating structure is provided; a driving structure is provided at the top of the installation shaft; a connecting structure is provided at the bottom of the installation shaft; a screwdriver bit is provided on the connecting structure, and the screwdriver bit cooperates with the nut.

The driving structure comprises a gear shaft and a rack, a mounting block is arranged on the top of the mounting shaft, and the gear shaft is arranged on the top of the mounting block; the gear shaft is in contact with the rack.

The side surface of the gear shaft is provided with teeth, and the rack is provided with teeth matching with the gear shaft.

The rotating structure comprises a bearing, and the mounting shaft is fixedly connected in the bearing; a housing structure is provided on the outer wall of the bearing.

The housing structure includes a housing, which is connected to the outer wall of the bearing and is arranged on the periphery of the gear shaft; a mounting hole and a mounting tube are respectively provided on the housing; the mounting tube extends outward along the edge of the mounting hole; a cover plate is provided on the top of the housing; and the rack is placed inside the mounting hole and the mounting tube.

The mounting hole is arranged on the side surface of the housing, and the mounting hole is a through hole; the mounting hole is arranged on one side of the gear shaft.

The connection structure comprises a mounting seat, which is arranged at the bottom of the mounting shaft; a mounting groove is arranged on the bottom surface of the mounting seat, and the end of the screwdriver bit is placed inside the mounting groove.

A limit plate is provided on the top of the gear shaft, and the limit plate is provided above the rack; a fixing block is provided on the top of the limit plate; and a fixing structure is provided on the side of the rack.

The fixing structure includes a connecting shaft and a guide plate; one end of the connecting shaft extends into the interior of the shell; a connecting plate is provided at the end of the connecting shaft, a connecting block is connected to the side of the connecting plate, and the connecting block is connected to the side of the guide plate; a guide groove is provided on the side of the guide plate, and the rack is placed inside the guide groove.

One end of the bit is a hexagonal prism structure, and the other end of the bit is a cylindrical structure; the bit is interference fit with the mounting groove; and the bearing is interference fit with the mounting shaft.

The beneficial effects of the present application are as follows: the device comprises an installation shaft, on which a rotating structure is provided; a driving structure is provided at the top of the installation shaft; a connecting structure is provided at the bottom of the installation shaft; a screwdriver bit is provided on the connecting structure, and the screwdriver bit cooperates with the nut.

The installation shaft is installed in the rotating structure, and the driving structure can drive the installation shaft to rotate in the rotating structure. A screwdriver bit is installed on the connecting structure, and when the installation shaft rotates, it drives the connecting structure and the screwdriver bit to rotate, and the screwdriver bit cooperates with the nut to achieve efficient installation and removal of the nut. The device has a simple structure, a small size, and a large rotation angle, and can easily complete the installation and removal of the nut in a small space.

The rotating structure of the device includes a bearing, and the installation shaft is fixedly connected in the bearing; a shell structure is provided on the outer wall of the bearing. The driving structure drives the installation shaft to rotate in the bearing, and the bearing is connected to the shell structure. When working, the installation and disassembly of the nut can be completed by simply holding the installation cylinder on the shell, and then using the driving structure to drive the installation shaft to drive the screwdriver to rotate. The rotating structure greatly simplifies the installation and disassembly work, helps the staff reduce working time and labor intensity, and effectively improves work efficiency.

The pull-out wrench is provided with a mounting shaft, a driving device is provided on the mounting shaft, and a rotating device is provided on the mounting shaft; the driving device can drive the mounting shaft to rotate in the rotating device, thereby driving the connecting device and the screwdriver bit installed at the bottom of the mounting shaft to rotate, thereby realizing efficient installation and removal of the nut. The device has a simple structure, a small volume, and a large rotation angle, and can easily complete the installation and removal of the nut in a small space.

BRIEF DESCRIPTION OF THE DRAWINGS

The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic structural diagram of the pull-out wrench.

FIG. 2 is a schematic structural diagram of the driving structure of the pull-out wrench.

FIG3 is a schematic structural diagram of the rotating structure of the pull-out wrench.

The marks in the above figure are:

The following are marked in the figure: 1. Batch head,

2. Install the shaft, 21. Install the block,

3. Rack, 31. Gear shaft,

4. Bearing, 41. Housing, 42. Mounting hole, 43. Cover plate, 44. Mounting tube,

5. Mounting seat, 51. Mounting slot,

6. Limit plate, 61. Fixed block,

7. connecting shaft, 71. connecting plate, 72. connecting block, 73. guide plate, 74. guide groove.

DETAILED DESCRIPTION

The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in this field to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the utility model and facilitating its implementation.

The pull-out wrench shown in FIG1 comprises a mounting shaft 2, on which a rotating structure is provided; a driving structure is provided at the top of the mounting shaft 2; a connecting structure is provided at the bottom of the mounting shaft 2; a screwdriver bit 1 is provided on the connecting structure, and the screwdriver bit 1 cooperates with a nut.

The installation shaft 2 is installed in the rotating structure, and the driving structure can drive the installation shaft 2 to rotate in the rotating structure. A screwdriver bit 1 is installed on the connecting structure. When the installation shaft 2 rotates, it will drive the connecting structure and the screwdriver bit 1 to rotate. The screwdriver bit 1 cooperates with the nut to achieve efficient installation and removal of the nut. The device has a simple structure, a small size, and a large rotation angle, and can easily complete the installation and removal of the nut in a small space.

The driving structure includes a gear shaft 31 and a rack 3 . A mounting block 21 is provided on the top of the mounting shaft 2 . The gear shaft 31 is provided on the top of the mounting block 21 . The gear shaft 31 is in contact with the rack 3 .

The mounting block 21 is fixedly connected to the mounting shaft 2, and the gear shaft 31 is fixedly connected to the mounting block 21; the gear shaft 31 cooperates with the rack 3, and pulling the rack 3 can drive the gear shaft 31 to rotate, thereby driving the mounting shaft 2 to rotate; when the mounting shaft 2 rotates, it will drive the connection structure and the screwdriver bit 1 to rotate, and the screwdriver bit 1 cooperates with the nut, thereby realizing efficient installation and removal of the nut. The drive structure of this invention has a simple structure, a small size, and a labor-saving and quick drive operation.

The side of the gear shaft 31 is provided with teeth, and the rack 3 is provided with teeth that match the gear shaft 31. The gear shaft 31 matches the rack 3, and the transmission efficiency of the two is high, and the input power can be effectively transmitted to the output end, realizing efficient power transmission; it can effectively reduce the labor intensity of the staff and improve work efficiency.

The rotating structure comprises a bearing 4 , in which the mounting shaft 2 is fixedly connected; a housing structure is provided on the outer wall of the bearing 4 .

The installation shaft 2 is installed on the bearing 4; the gear shaft 31 and the rack 3 drive the installation shaft 2 to rotate in the bearing 4, and the bearing 4 is connected to the housing structure. When working, you only need to hold the housing structure tightly, and then use the rack 3 to drive the installation shaft 2 to drive the screwdriver bit 1 to rotate, and the installation and disassembly of the nut can be completed. This rotating structure greatly simplifies the installation and disassembly work, helps the staff reduce working time and labor intensity, and effectively improves work efficiency.

The shell structure includes a shell 41, which is connected to the outer wall of the bearing 4 and is arranged on the periphery of the gear shaft 31; the shell 41 is respectively provided with a mounting hole 42 and a mounting tube 44; the mounting tube 44 extends outward along the edge of the mounting hole 42; a cover plate 43 is provided on the top of the shell 41; the rack 3 is placed inside the mounting hole 42 and the mounting tube 44.

The housing 41 is a cylindrical structure. The housing 41 is fixedly connected to the outer wall of the bearing 4; the mounting shaft 2 and the gear shaft 31 are both arranged inside the housing 41; the rack 3 extends from the mounting tube 44 into the housing 41 to cooperate with the gear shaft 31, and then extends from the mounting hole 42; the mounting tube 44 performs position limiting guidance when the rack 3 is installed on the device, so that the rack 3 can quickly and accurately extend into the housing 41 to cooperate with the gear shaft 31. During work, the mounting tube 44 can also provide a gripping position for the staff to facilitate the installation and extraction of the rack 3.

The mounting hole 42 is provided on the side of the housing 41, and the mounting hole 42 is a through hole; the mounting hole 42 is provided on one side of the gear shaft 31. The teeth of the gear shaft 31 are provided on its side; the mounting hole 42 is provided on one side of the gear shaft 31, and can guide the rack 3 so that the rack 3 can mesh with the gear shaft 31 correctly.

The connection structure includes a mounting seat 5, which is arranged at the bottom of the mounting shaft 2; a mounting groove 51 is arranged on the bottom surface of the mounting seat 5, and the end of the screwdriver bit 1 is placed inside the mounting groove 51. The screwdriver bit 1 and the mounting seat 5 are detachable; the mounting seat 5 is fixedly connected to the mounting shaft 2; when one end of the screwdriver bit 1 is fixedly connected to the mounting groove 51, the screwdriver bit 1 can rotate with the mounting shaft 2 to install and remove the nut.

A limit plate 6 is provided on the top of the gear shaft 31, and the limit plate 6 is provided above the rack 3; a fixing block 61 is provided on the top of the limit plate 6; and a fixing structure is provided on the side of the rack 3. The fixing block 61 presses the limit plate 6 against the top of the gear shaft 31, and the limit plate 6 is a circular plate; the edge of the limit plate 6 is provided above the rack 3; the limit plate 6 limits the rack 3 to prevent the rack 3 from vertically displacing during the movement, causing the teeth to be disengaged, and affecting the transmission with the gear shaft 31.

The fixing structure includes a connecting shaft 7 and a guide plate 73; one end of the connecting shaft 7 extends into the interior of the shell 41; a connecting plate 71 is provided at the end of the connecting shaft 7, a connecting block 72 is connected to the side of the connecting plate 71, and the connecting block 72 is connected to the side of the guide plate 73; a guide groove 74 is provided on the side of the guide plate 73, and the rack 3 is placed inside the guide groove 74.

The guide plate 73 is a U-shaped structure; the guide groove 74 is provided on the side of the guide plate 73; the rack 3 is placed in the guide groove 74; the guide groove 74 limits and guides the rack 3; the connecting plate 71 can adjust the position of the guide plate 73 in the housing 41, so that the rack 3 can perform flexible and smooth relative movement with the gear shaft 31.

One end of the bit 1 is a hexagonal prism structure, and the other end of the bit 1 is a cylindrical structure; the bit 1 is interference fit with the mounting groove 51; the bearing 4 is interference fit with the mounting shaft 2. One end of the bit 1 is a hexagonal prism structure, which can fit the hexagonal hole nut and smoothly install and disassemble it; the other end of the bit 1 is a cylindrical structure, which can fit the shape of the mounting groove 51, making it easy to install. The bit 1 is interference fit with the mounting groove 51; the bearing 4 is interference fit with the mounting shaft 2. The interference fit connection is stable and convenient for installation and disassembly.

The specific working process of the utility model is as follows: when it is necessary to install or remove the nut, first select a screwdriver bit 1 of a suitable type and install the screwdriver bit 1 in the installation groove 51; extend the rack 3 from the installation tube 44 into the interior of the housing 41 to cooperate with the gear shaft 31; install the screwdriver bit 1 on the nut, pull the rack 3, and drive the screwdriver bit 1 to rotate. In this way, the nut is successfully installed or removed.

The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims (10)

1. A pull-out wrench, characterized in that: it comprises a mounting shaft (2), a rotating structure is provided on the mounting shaft (2); a driving structure is provided at the top of the mounting shaft (2); a connecting structure is provided at the bottom of the mounting shaft (2); a screwdriver bit (1) is provided on the connecting structure, and the screwdriver bit (1) cooperates with a nut. 2. The pull-out wrench according to claim 1 is characterized in that: the driving structure includes a gear shaft (31) and a rack (3), a mounting block (21) is provided at the top of the mounting shaft (2), and the gear shaft (31) is provided at the top of the mounting block (21); the gear shaft (31) is in contact with the rack (3). 3. The pull-out wrench according to claim 2, characterized in that teeth are provided on the side surface of the gear shaft (31), and the rack (3) is provided with teeth matching with the gear shaft (31). 4. The pull-out wrench according to claim 3 is characterized in that: the rotating structure includes a bearing (4), the mounting shaft (2) is fixedly connected in the bearing (4); and a shell structure is provided on the outer wall of the bearing (4). 5. The pull-out wrench according to claim 4 is characterized in that: the shell structure includes a shell (41), the shell (41) is connected to the outer wall of the bearing (4), and the shell (41) is arranged on the periphery of the gear shaft (31); the shell (41) is respectively provided with a mounting hole (42) and a mounting tube (44); the mounting tube (44) extends outward along the edge of the mounting hole (42); a cover plate (43) is provided on the top of the shell (41); the rack (3) is placed inside the mounting hole (42) and the mounting tube (44). 6. The pull-out wrench according to claim 5, characterized in that: the mounting hole (42) is provided on the side of the housing (41), and the mounting hole (42) is a through hole; the mounting hole (42) is provided on one side of the gear shaft (31). 7. The pull-out wrench according to claim 6 is characterized in that: the connecting structure includes a mounting seat (5), and the mounting seat (5) is arranged at the bottom of the mounting shaft (2); a mounting groove (51) is provided on the bottom surface of the mounting seat (5), and the end of the screwdriver bit (1) is placed inside the mounting groove (51). 8. The pull-out wrench according to claim 7 is characterized in that: a limit plate (6) is provided on the top of the gear shaft (31), and the limit plate (6) is arranged above the rack (3); a fixing block (61) is provided on the top of the limit plate (6); and a fixing structure is provided on the side of the rack (3). 9. The pull-out wrench according to claim 8 is characterized in that: the fixing structure includes a connecting shaft (7) and a guide plate (73); one end of the connecting shaft (7) extends into the interior of the housing (41); a connecting plate (71) is provided at the end of the connecting shaft (7), a connecting block (72) is connected to the side of the connecting plate (71), and the connecting block (72) is connected to the side of the guide plate (73); a guide groove (74) is provided on the side of the guide plate (73), and the rack (3) is placed inside the guide groove (74). 10. The pull-out wrench according to claim 9 is characterized in that: one end of the bit (1) is a hexagonal prism structure, and the other end of the bit (1) is a cylindrical structure; the bit (1) and the mounting groove (51) are interference fit; the bearing (4) and the mounting shaft (2) are interference fit.