Nut mounting and dismounting tool in narrow space

Abstract

The utility model discloses a nut mounting and dismounting tool in a narrow space, which belongs to the technical field of nut locking and comprises a clamp head structure and a control rod structure. The clamp head structure comprises a sleeve head, a clamping jaw, a guide block and a spring, the sleeve head is provided with an open slot, a guide slot, a limiting slot, a large sliding slot and a small sliding slot which are respectively used for mounting the clamping jaw and the guide block, the sleeve head is hexagonal, the clamping jaw is mounted in the open slot of the sleeve head, and the guide block is mounted in the guide slot; the two clamping jaws are symmetrically arranged; and the guide block is connected with the clamping jaw through a pin shaft. The control rod structure comprises a rotating head, a hand lever, a steel wire control block, a sliding shifting piece, a sliding column and a steel wire, the rotating head is connected with the sleeve head through a pin shaft, and the steel wire control block is installed in the rotating head to control the steel wire; a sliding shifting piece and a sliding column are installed on the hand lever, and the traction steel wire controls opening and closing of the clamping jaws. The device is simple in structure, high in universality, very convenient to use and suitable for mounting, dismounting, picking and releasing of nuts in narrow and small spaces.

Description

Technical Field

[0001] The invention relates to the technical field of clamping and picking up tiny parts, and in particular to a nut installation and removal tool. Background Art

[0002] In mechanical assembly, various nuts are used to fasten parts. Due to the product structure and the small size of the nuts, when removing the nuts in a narrow space, ordinary tools such as box wrenches, ratchet wrenches and other conventional tools cannot clamp the nuts. After the nuts are loosened, they are easy to fall into the product, causing serious consequences. Therefore, a nut installation and removal tool is designed to realize the installation, removal, picking and release of nuts. Summary of the invention

[0003] The invention provides a nut installation and removal tool to solve the problem that the existing tool cannot clamp the nut and the nut is easily dropped when installing and removing the nut in a narrow space.

[0004] During the installation and removal of nuts in a narrow space, the nut is easy to fall off the tool when the nut is about to be put on the bolt or the nut is about to be removed from the bolt. In this process, the key is to control when the nut is released from the tool, so it is necessary to design a nut installation and removal tool.

[0005] The present invention is realized by the following technical scheme: a nut installation and removal tool, including a clamp head structure and a control rod structure; the clamp head structure includes a sleeve head, a clamping claw, a guide block and a spring, the sleeve head is composed of two identical parts connected by countersunk screws, the outer side of its cross section is circular, the inner side is hexagonal, and in the vertical section direction, there are guide grooves, limit grooves, large sliding grooves and small sliding grooves, which are respectively used to install the guide block, the limit surface of the guide block and the small guide column of the clamping claw. At the same time, open grooves are provided on both sides for installing the clamping claw. There are two clamping claws in total, and the clamping claws are symmetrically arranged for picking up and releasing nuts. The clamping claw is connected to the guide block through a pin shaft, the pin shaft can slide in the large sliding groove of the sleeve head, and the small guide column of the clamping claw is slidably connected in the small sliding groove of the sleeve head. The guide block is installed in the guide groove of the sleeve head, and there are limit surfaces on both sides of the guide block. One end of the guide block is connected to the clamping claw through a pin shaft, and the other end has a wire installation hole. One end of the spring is mounted on the bottom surface of the limit groove of the sleeve head, and the other end is mounted on the limit surface of the guide block; the control rod structure includes a rotating head, a hand lever, a wire control block, a sliding paddle, a sliding column and a wire. The rotating head is connected to the sleeve head through a pin shaft. The interior of the rotating head is hollow and has threads tapped on the inner wall for connecting with the hand lever. The thinner tail end of the hand lever is threaded to connect with the rotating head. A waist hole is opened at the thicker head end of the hand lever for installing the sliding paddle and the sliding column. A ball countersunk hole is opened on the symmetric surface of the waist hole, i.e., the inner wall of the hand lever, for limiting the spring ball of the sliding column. The wire control block is located inside the rotating head, and its cross section is saddle-shaped for positioning the wire. The sliding paddle is installed on the sliding column through the waist hole of the hand lever, and its structure is arc-shaped. The sliding column is installed in the hand lever, and a spring ball is installed on the wall of the sliding column to control the displacement of the sliding column. A wire installation hole is opened on its end face. One end of the steel wire is installed in the steel wire installation hole of the sliding column, and the other end is installed in the steel wire installation hole of the guide block. The middle section of the steel wire is adjusted by the steel wire control block.

[0006] The specific operation of the present invention is: when it is necessary to install a nut in a narrow space, hold the hand lever and push the sliding pick forward. Due to the spring reset, the guide block moves to open the clamping claw, and the nut is placed in the sleeve head. Then, push the sliding pick backward. Under the action of the steel wire, the spring compression drives the guide block to move to close the clamping claw, and the nut is fixed in the sleeve head. The hand lever is used to send the sleeve head to the specified position, and the bolt is tightened with a screwdriver. After the nut is loaded with the bolt, the clamping claw is released, and the bolt is completely tightened before the tool is taken out. When it is necessary to remove the nut in a narrow space, hold the hand lever and push the sliding pick forward. The spring reset drives the guide block to move and the jaws open. Use the hand lever to move the socket head to the specified position. Use a screwdriver to loosen the bolt. After a gap is created between the nut and the mounting surface, push the sliding pick backward. Under the action of the steel wire, the spring compression drives the guide block to move and the jaws close, fixing the nut in the socket head. Continue to loosen the bolt. When the nut falls off completely, take out the tool, loosen the jaws, and take out the nut in the socket head.

[0007] Preferably, the interior of the socket head is hexagonal, which can better match the nut.

[0008] Preferably, the end of the clamping jaw is bent inwardly to form a barb shape to prevent the nut from slipping out of the sleeve head when the clamping jaw is closed.

[0009] Preferably, the interior of the rotating head is a hollow structure for installing a steel wire control block to control the steel wire.

[0010] Preferably, the sleeve head is provided with different specifications to meet the requirements of nuts of different sizes.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a nut installation and removal tool, which drives the steel wire through the sliding paddle to control the opening and closing of the clamping jaws, thereby realizing the tightening, loosening, picking up and releasing of the nut. The present invention has a simple and compact structure, strong versatility, and is very convenient to use, and is suitable for the installation and removal of nuts in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is a structural schematic diagram of the clamp head structure of the present invention.

[0014] Figure 3 It is a schematic diagram of the anatomical structure of the clamp head of the present invention.

[0015] Figure 4 It is a structural schematic diagram of the sleeve head structure of the present invention.

[0016] Figure 5 It is a structural side view of the sleeve head structure of the present invention.

[0017] Figure 6 It is a structural schematic diagram of the guide block structure of the present invention.

[0018] Figure 7 It is a structural schematic diagram of the control rod structure of the present invention.

[0019] Figure 8 It is a schematic diagram of the anatomical structure of the control rod of the present invention.

[0020] The markings in the figure are as follows: 1-clamp head structure, 2-control rod structure, 3-sleeve head, 4-clamping claw, 5-guide block, 6-spring, 7-rotating head, 8-hand lever, 9-wire control block, 10-sliding paddle, 11-sliding column, 12-wire, 301-guide groove, 302-limiting groove, 303-large sliding groove, 304-small sliding groove, 305-opening groove, 401-clamping claw small guide column, 501-limiting surface, 502-guide block wire mounting hole, 801-waist hole, 802-ball countersunk hole, 111-spring ball, 112-sliding column wire mounting hole. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific implementation modes.

[0022] A nut installation and removal tool, such as Figure 1 As shown: it includes a clamp head structure 1 and a control rod structure 2; Figure 2 and Figure 3 As shown, the fixture head structure includes a sleeve head 3, a clamping claw 4, a guide block 5 and a spring 6. Figure 4 and Figure 5 As shown, the sleeve head 3 is composed of two completely identical parts connected by countersunk screws. Its cross-section is circular on the outside and hexagonal on the inside. In the vertical cross-section direction, a guide groove 301, a limit groove 302, a large sliding groove 303 and a small sliding groove 304 are provided, which are respectively used to install the guide block 5, the guide block limit surface 501 and the clamping jaw small guide column 401. At the same time, open grooves 305 are provided on both sides for installing the clamping jaws. There are two clamping jaws 4, and the clamping jaws 4 are symmetrically arranged for picking up and releasing nuts. The clamping jaws 4 are connected to the guide block 5 through a pin shaft, and the pin shaft can slide in the large sliding groove 303 of the sleeve head. The small guide column 401 of the clamping jaw is slidably connected to the small sliding groove 304 of the sleeve head. Figure 6 As shown, the guide block 5 is installed in the guide groove 301 of the sleeve head, and the guide block 5 has limited surfaces 501 on both sides. One end of the guide block 5 is connected to the clamping jaw 4 through a pin shaft, and the other end is provided with a wire mounting hole 502. One end of the spring is installed on the bottom surface of the limiting groove 302 of the sleeve head, and the other end is installed on the limiting surface 501 of the guide block; Figure 7 and Figure 8As shown, the control rod structure includes a rotating head 7, a hand rod 8, a wire control block 9, a sliding paddle 10, a sliding column 11 and a wire 12. The rotating head 7 is connected to the sleeve head 3 through a pin shaft. The interior of the rotating head 7 is hollow and has threads tapped on the inner wall for connecting with the hand rod 8. The thinner tail end of the hand rod 8 is threaded and connected to the rotating head 7. A waist hole 801 is opened at the thicker head end of the hand rod 8 for installing the sliding paddle 10 and the sliding column 11. A ball countersunk hole 802 is opened on the symmetrical surface of the waist hole, i.e., the inner wall of the hand rod, for limiting the spring ball 111 of the sliding column. The wire control block 9 is located inside the rotating head 7, and its cross-section is saddle-shaped for positioning the wire 12. The sliding paddle 10 is installed on the sliding column 11 through the waist hole 801 of the hand lever, and its structure is arc-shaped. The sliding column 11 is installed in the hand lever 8. A spring ball 111 is installed on the wall of the sliding column 11 to control the displacement of the sliding column 11. A steel wire mounting hole 112 is opened on its end surface. One end of the steel wire 12 is installed in the steel wire mounting hole 112 of the sliding column, and the other end is installed in the steel wire mounting hole 502 of the guide block. The middle section of the steel wire is adjusted by the steel wire control block 9.

[0023] This example adopts the following preferred scheme: the interior of the sleeve head 1 is hexagonal, which can better match the nut; the end of the clamping jaw 4 is bent inward and has a barb shape to prevent the nut from slipping out of the sleeve head when the clamping jaw is closed; the interior of the rotating head 7 is a hollow structure for installing a wire control block to control the wire; the sleeve head 3 is provided with different specifications to meet the needs of nuts of different sizes.

[0024] The specific operation of this example is: when it is necessary to install the nut in a narrow space, hold the hand lever 8 and push the sliding pick 10 forward. Due to the reset of the spring 6, the guide block 5 moves to open the clamping jaws, and the nut is put into the sleeve head 3. Then, push the sliding pick 10 backward. Under the action of the steel wire 12, the spring 6 is compressed to drive the guide block 5 to move to close the clamping jaws 4, and the nut is fixed in the sleeve head 3. Use the hand lever 8 to send the sleeve head 3 to the specified position, use a screwdriver to tighten the bolt, and after the nut is fastened with the bolt, loosen the clamping jaw 4, and after the bolt is fully tightened, take out the tool. When it is necessary to remove the nut in a narrow space, hold the hand lever 8 and push the sliding paddle 10 forward. The spring 6 resets and drives the guide block 5 to move so that the jaws 4 open. Use the hand lever 8 to send the sleeve head 3 to the specified position. Use a screwdriver to loosen the bolt. After a gap is formed between the nut and the mounting surface, push the sliding paddle 10 backward. Under the action of the steel wire 12, the spring 6 is compressed and drives the guide block 5 to move so that the jaws 4 close and fix the nut in the sleeve head 3. Continue to loosen the bolt. When the nut is completely off, take out the tool, loosen the jaws 4, and take out the nut in the sleeve head 3.

[0025] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modifications, improvements and equivalents made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for installing and removing nuts in a narrow space, characterized by: The invention comprises a clamp head structure (1) and a control rod structure (2); the clamp head structure (1) comprises a sleeve head (3), a clamping jaw (4), a guide block (5) and a spring (6); the sleeve head (3) is composed of two identical parts connected by countersunk screws, the outer side of the sleeve head (3) is circular, and the inner side is hexagonal; in the vertical section direction, a guide groove (301), a limit groove (302), a large sliding groove (303) and a small sliding groove (304) are provided, which are respectively used to install the guide block (5), the guide block limit surface (501) and the clamping jaw small guide column (401); at the same time, open grooves (305) are provided on both sides for installing the clamping jaw (4); the clamping jaw (4) has two The clamping jaws (4) are symmetrically arranged and used for picking up and releasing nuts. The clamping jaws (4) are connected to the guide block (5) through a pin shaft. The pin shaft can slide in the large sliding groove (303) of the sleeve head. The small guide column (401) of the clamping jaw is slidably connected to the small sliding groove (304) of the sleeve head. The guide block (5) is installed in the guide groove (301) of the sleeve head. The guide block (5) has limited surfaces (501) on both sides. One end of the guide block (5) is connected to the clamping jaw (4) through a pin shaft, and the other end is provided with a guide block wire mounting hole (502). One end of the spring (6) is installed on the bottom surface of the limit groove (302) of the sleeve head, and the other end is installed on the limit surface (501) of the guide block; the control rod structure The structure (2) comprises a rotating head (7), a hand lever (8), a wire control block (9), a sliding paddle (10), a sliding column (11) and a wire (12); the rotating head (7) is connected to the sleeve head (3) through a pin shaft; the rotating head (7) is hollow inside and has a thread tapped on the inner wall for connecting with the hand lever (8); the thinner tail end of the hand lever (8) is threaded and connected with the rotating head (7); a waist hole (801) is opened at the thicker head end of the hand lever (8) for installing the sliding paddle (10) and the sliding column (11); a ball countersunk hole (802) is opened on the symmetrical surface of the waist hole (801), i.e., the inner wall of the hand lever (8) for limiting the spring ball (111) of the sliding column; The steel wire control block (9) is located inside the rotating head (7) and has a saddle-shaped cross section for positioning the steel wire (12). The sliding paddle (10) is installed on the sliding column (11) through the waist hole (801) of the hand lever and has an arc-shaped structure. The sliding column (11) is installed in the hand lever (8). A spring ball (111) is installed on the wall of the sliding column (11) for controlling the displacement of the sliding column (11). A sliding column steel wire mounting hole (112) is opened on the end surface of the sliding column steel wire mounting hole (112). One end of the steel wire (12) is installed in the sliding column steel wire mounting hole (112) and the other end is installed in the guide block steel wire mounting hole (502). The middle section of the steel wire is adjusted by the steel wire control block (9).

2. A tool for installing and removing nuts in a narrow space according to claim 1, characterized in that: The interior of the sleeve head (3) is a hexagonal structure.

3. A tool for installing and removing nuts in a narrow space according to claim 1, characterized in that: The end of the clamping claw (4) is bent inwards and is in a barb shape.

4. A tool for installing and removing nuts in a narrow space according to claim 1, characterized in that: The interior of the rotating head (7) is a hollow structure.

5. The narrow space nut installation and removal tool according to claim 1, characterized in that: The sleeve head (3) is provided with different specifications to meet the requirements of nuts of different sizes.

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