CN113134799A

CN113134799A - Multifunctional wrench for automobile maintenance

Info

Publication number: CN113134799A
Application number: CN202110299770.0A
Authority: CN
Inventors: 丁志成
Original assignee: Zhengzhou University of Industrial Technology
Current assignee: Zhengzhou University of Industrial Technology
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-07-20

Abstract

The invention provides a multifunctional wrench for automobile maintenance, which comprises a handle, wherein one end of the handle is fixedly connected with an installation block, a support rod is connected above the installation block, a ratchet sleeve is movably connected above the support rod, an outer sleeve is nested on the outer side of the support rod, and the outer sleeve is connected with the support rod through a ball; the installation structure is characterized in that a clamping frame is connected to the lower portion of the installation block through an installation rod and a fastening nut, clamping blocks are movably installed on two sides of the interior of the clamping frame, the inner sides of the clamping blocks are cambered surfaces, ratchets are arranged on the cambered surfaces, screw rods are connected to the outer sides of the clamping blocks, and knobs are arranged at the end portions, penetrating through the clamping frame and the screw rods, of the screw rods. The invention can adapt to different exposed screws by moving the calibers between the cambered surfaces of the two groups of clamping blocks, adapt to different embedded screws by replacing the ratchet sleeve, hold the outer sleeve to hold the direction, and is more stable in use and convenient in operation.

Description

Multifunctional wrench for automobile maintenance

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a multifunctional wrench for automobile maintenance.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing the opening or trepanning firmware of a bolt, a screw and a nut by utilizing the lever principle. The wrench is usually made of carbon or structural steel made of alloy material, and usually has an opening or a sleeve hole for holding a bolt or a nut formed at one end or both ends of a handle portion, so that the bolt or the nut can be screwed by applying an external force to the handle portion along a thread rotation direction in use.

In automobile repair, a wrench is often required to remove the screw. The screw on the car is various, and some are exposed screw, and some are embedded screw, and the operation space is little around, and inconvenient handle is rotatory. When the wrench is used for disassembling, the exposed screw needs to be disassembled by using a common wrench, the embedded screw needs to be disassembled by using a long-rod wrench, the wrench is troublesome, different wrenches are needed to be prepared due to different screw calibers, and the wrench is inconvenient to use.

Disclosure of Invention

Aiming at the problems, the invention provides the multifunctional wrench for automobile maintenance, which can be adapted to exposed screws and embedded screws of different models, has diversified functions and is more convenient to use.

In order to realize the purpose of the invention, the invention is realized by the following technical scheme:

a multifunctional wrench for automobile maintenance comprises a handle, wherein one end of the handle is fixedly connected with a mounting block, a supporting rod is connected above the mounting block, a ratchet sleeve is movably connected above the supporting rod, an outer sleeve is nested on the outer side of the supporting rod, and the outer sleeve is connected with the supporting rod through a ball; the installation structure is characterized in that a clamping frame is connected to the lower portion of the installation block through an installation rod and a fastening nut, clamping blocks are movably installed on two sides of the interior of the clamping frame, the inner sides of the clamping blocks are cambered surfaces, ratchets are arranged on the cambered surfaces, screw rods are connected to the outer sides of the clamping blocks, and knobs are arranged at the end portions, penetrating through the clamping frame and the screw rods, of the screw rods.

Further: the inside both sides of card frame all are equipped with the guide way, the clamp splice slides on the guide way. The further improvement lies in that: the mounting block is provided with a first prismatic mounting block above, a first groove is formed in the side face of the first prismatic mounting block, a first spring is arranged in the first groove, a first ball is arranged at one end of the first spring, a first clamping sleeve is arranged at the lower end of the supporting rod, a first prismatic groove matched with the first prismatic mounting block is formed in the inner side of the first clamping sleeve, and a first positioning groove matched with the first ball is formed in the inner side of the first prismatic groove.

The further improvement lies in that: a second prismatic mounting block is arranged above the supporting rod, a second clamping sleeve is arranged at the lower end of the ratchet sleeve, and a second prismatic groove matched with the second prismatic mounting block is arranged on the inner side of the second clamping sleeve.

The further improvement lies in that: the one end of handle is connected with the extension handle through two-way threaded rod, the inside of handle one end is equipped with first thread groove, the extension is equipped with the second thread groove to the inside of one end, and the screw thread on the two-way threaded rod respectively with first thread groove, second thread groove looks adaptation, the outside cover of extension handle is equipped with outer gum cover. Furthermore, the other end of the extension handle is also internally provided with a thread groove, and the handle can be further extended through the bidirectional threaded rod so as to adapt to different working environments.

Further: the four corners department of card frame all is equipped with the installation pole, the four corners department on the installation piece all is equipped with the jack, installation pole and jack looks adaptation, installation pole top is equipped with the external screw thread, and the installation pole is installed on the installation piece through upper and lower fastening nut.

The invention has the beneficial effects that: the invention detaches the embedded screw through the support rod and the ratchet sleeve arranged on the mounting block, detaches the exposed screw through the matching of the two groups of clamping blocks in the clamping frame, is simple to use, and can push the clamping blocks to move along the guide groove in the clamping frame by rotating the screw rod, thereby changing the distance between the two groups of clamping blocks and enabling the caliber between the cambered surfaces of the two groups of clamping blocks to be matched with different exposed screws. In addition, the ratchet sleeve can be pulled out and detached through the installation of the second prismatic installation block and the second clamping sleeve, so that the ratchet sleeves with different specifications can be conveniently replaced. When the embedded screw is disassembled, the outer sleeve can be held by hand to hold the direction, so that the handle is prevented from sliding off the screw when being rotated forcibly. Because the effect of ball does not influence and rotates handle and rotate installation piece and branch, it is more stable during the use, convenient operation.

In conclusion, the invention is suitable for exposed screws and embedded screws with different types, has diversified functions and is convenient to use. Simultaneously, can additionally install extension handle through two-way threaded rod outside the handle, the extension can also install other extension handle additional through other two-way threaded rod to the outer end, and the lever application of force when dismantling the screw is convenient.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the card frame of the present invention;

FIG. 3 is a schematic view of the strut and ratchet sleeve assembly of the present invention;

FIG. 4 is a schematic view of a first prismatic mounting block according to the present invention;

fig. 5 is a schematic view of the installation of the outer sleeve of the present invention.

Wherein: 1. a handle; 2. mounting blocks; 3. a strut; 4. a ratchet sleeve; 5. clamping a frame; 6. a clamping block; 7. a ratchet; 8. a threaded sleeve; 9. a screw; 10. mounting a rod; 11. a knob; 12. a guide groove; 13. a first prismatic mounting block; 14. a first groove; 15. a first spring; 16. a first ball bearing; 17. a first ferrule; 18. a second prismatic mounting block; 19. a jack; 20. an external thread; 21. fastening a nut; 22. a second ferrule; 23. an outer sleeve; 24. a ball bearing; 25. a lengthening handle; 26. a first thread groove; 27. a second thread groove; 28. a bidirectional threaded rod; 29. and (5) an outer rubber sleeve.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

According to the figure 1, the invention provides a multifunctional wrench for automobile maintenance, which comprises a handle 1, wherein one end of the handle 1 is fixedly connected with a mounting block 2, a supporting rod 3 is connected above the mounting block 2, a ratchet sleeve 4 is movably connected above the supporting rod 3, an outer sleeve 23 is nested outside the supporting rod 3, and the outer sleeve 23 is connected with the supporting rod through a ball 24; the lower part of the mounting block 2 is connected with a clamping frame 5 through a mounting rod 10 and a fastening nut 21, clamping blocks 6 are movably mounted on two sides of the interior of the clamping frame 5, the inner sides of the clamping blocks 6 are arc surfaces, ratchets 7 are arranged on the arc surfaces, the outer sides of the clamping blocks 6 are connected with screw rods 9, and the screw rods 9 penetrate through the clamping frame 5 and the end parts of the screw rods 5 to form knobs 11.

When the screw dismounting device is used, the embedded screws are dismounted through the support rods 3 and the ratchet wheel sleeves 4 which are arranged on the mounting blocks 2, and the exposed screws are dismounted through the matching of the two groups of clamping blocks 6 in the clamping frame 5.

As shown in fig. 2, guide grooves 12 are formed on both sides of the inside of the clamping frame 5, and the clamping blocks 6 slide on the guide grooves 12. And sliding surfaces matched with the guide grooves 12 are arranged on the two sides of the clamping block. In use, the knob 11 is rotated to rotate the screw 9. When the screw rod 9 passes through the clamping frame 5, the outer surface is matched with the threaded sleeve 8 to increase the friction force. The screw rod 9 moves to push the clamping blocks 6 to move in the clamping frame 5 along the guide groove 12, so that the distance between the two groups of clamping blocks 6 is changed, and the calibers of the cambered surfaces of the two groups of clamping blocks 6 are matched with different exposed screws.

As shown in fig. 3 and 4, a first prismatic mounting block 13 is arranged above the mounting block 2, a first groove 14 is formed in the side surface of the first prismatic mounting block 13, a first spring 15 is arranged in the first groove 14, a first ball 16 is arranged at one end of the first spring 15, a first clamping sleeve 17 is arranged at the lower end of the support rod 3, a first prismatic groove matched with the first prismatic mounting block 13 is formed in the inner side of the first clamping sleeve 17, and a first positioning groove matched with the first ball 16 is formed in the inner side of the first prismatic groove. During installation, the first clamping sleeve 17 is sleeved outside the first prismatic installation block 13, the first ball 16 is clamped into the first positioning groove to complete positioning, and the support rod is pulled out during disassembly.

As shown in fig. 3, a second prismatic mounting block 18 is arranged above the support rod 3, and a second cutting sleeve 22 is arranged at the lower end of the ratchet sleeve 4. When installed, the second ferrule 22 is fitted over the second prismatic mounting block 18. When the ratchet sleeve 4 is disassembled, the ratchet sleeve 4 can be pulled out, and the ratchet sleeves 4 with different specifications can be conveniently replaced.

An outer sleeve 23 is nested on the outer side of the support rod 3, a ball 24 is arranged between the inner side of the outer sleeve 23 and the support rod 3, and the outer sleeve 23 is rotatably installed on the support rod 3 through the ball 24 and is similar to a bearing. When the embedded screw is disassembled, the outer sleeve 23 can be held by hand to hold the direction, so that the ratchet sleeve 4 is prevented from sliding off the screw when force is applied. Due to the function of the ball 24, the rotating handle 1 is not influenced to rotate the mounting block 2 and the supporting rod 3, so that the use is more stable and the operation is convenient.

As shown in fig. 3, one end of the handle 1 is provided with an extension handle 25, a first thread groove 26 is arranged in one end of the handle 1, a second thread groove 27 is arranged in one end of the extension handle 25, a bidirectional threaded rod 28 is connected with the extension handle 25 and the handle 1, threads on the bidirectional threaded rod 28 are matched with the first thread groove 26 and the second thread groove 27, and an outer rubber sleeve 29 is sleeved on the outer side of the extension handle 25. The other end of the extension handle 25 can be additionally provided with the extension handle 25 through a bidirectional threaded rod 28, so that lever force application is convenient to apply when the screw is detached.

Four corners department of card frame 5 all is equipped with installation pole 10, four corners department on the installation piece 2 all is equipped with jack 19, installation pole 10 and jack 19 looks adaptation.

The top of the mounting rod 10 is provided with an external thread 20, and the mounting rod 10 is provided with a fastening nut 21 through the external thread 20, and the fastening nut 21 is clamped above and below the jack 19. For fixing the mounting rod 10 and thus the clamping frame 5, and also for facilitating disassembly.

This multi-functional spanner of auto repair dismantles embedded screw through branch 3 and ratchet cover 4 of installation on installation piece 2, and the screw that exposes is dismantled through inside two sets of clamp splice 6 cooperations of card frame 5, and is simple to use, and can promote clamp splice 6 through rotatory screw rod 9 and remove along guide way 12 in card frame 5 to change the distance between two sets of clamp splice 6, make the different screw that exposes of bore adaptation between the cambered surface of two sets of clamp splice 6. In addition, the installation through second prismatic installation piece 18 and second cutting ferrule 22 can be extracted ratchet sleeve 4 and dismantle down, conveniently change the ratchet sleeve 4 of different specifications, to sum up, the exposed screw and the embedded screw of the different models of adaptation, the function is diversified, high convenience is used, and simultaneously, handle 1 can additionally install extension handle 25 through two-way threaded rod 28 outward, the lever application of force when dismantling the screw is convenient, in addition, when dismantling embedded screw, can hold outer tube 23 and hold the direction, because ball 24's effect, do not influence and rotate handle 1 and rotate installation piece 2 and branch 3, it is more stable during the use, and convenient operation.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multi-functional spanner of auto repair which characterized in that: the handle comprises a handle (1), wherein one end of the handle (1) is fixedly connected with an installation block (2), a support rod (3) is connected above the installation block (2), a ratchet sleeve (4) is movably connected above the support rod (3), an outer sleeve (23) is nested on the outer side of the support rod (3), and the outer sleeve (23) is connected with the support rod (3) through a ball (24); the installation structure is characterized in that the lower portion of the installation block (2) is connected with a clamping frame (5) through an installation rod (10) and a fastening nut (21), clamping blocks (6) are movably installed on two sides of the interior of the clamping frame (5), the inner sides of the clamping blocks (6) are arc surfaces, ratchet teeth (7) are arranged on the arc surfaces, the outer sides of the clamping blocks (6) are connected with screw rods (9), and the end portions, penetrating through the clamping frame (5) and the screw rods (5), of the screw rods (9) are provided with knobs (11).

2. The multifunctional wrench for automobile maintenance according to claim 1, wherein: the inside both sides of card frame (5) all are equipped with guide way (12), clamp splice (6) are in slide on guide way (12).

3. The multifunctional wrench for automobile maintenance according to claim 1, wherein: the mounting block (2) top is equipped with first prism installation piece (13), and the side of first prism installation piece (13) is equipped with first recess (14), be equipped with first spring (15) in first recess (14), and the one end of first spring (15) is equipped with first ball (16), the lower extreme of branch (3) is equipped with first cutting ferrule (17), and the inboard of first cutting ferrule (17) is equipped with the first prismatic groove with first prism installation piece (13) looks adaptation, the inboard in first prismatic groove is equipped with the first positioning groove with first ball (16) looks adaptation.

4. The multifunctional wrench for automobile maintenance according to claim 1, wherein: a second prismatic mounting block (18) is arranged above the supporting rod (3), a second clamping sleeve (22) is arranged at the lower end of the ratchet sleeve (4), and a second prismatic groove matched with the second prismatic mounting block (18) is formed in the second clamping sleeve (22).

5. The multifunctional wrench for automobile maintenance according to claim 1, wherein: the one end of handle (1) is connected with extension handle (25) through two-way threaded rod (28), the inside of handle (1) one end is equipped with first thread groove (26), the inside of extension handle (25) one end all is equipped with second thread groove (27), the screw thread at two-way threaded rod (28) both ends respectively with first thread groove (26), second thread groove (27) looks adaptation, the outside cover of extension handle (25) is equipped with outer gum cover (29).

6. The multifunctional wrench for automobile maintenance according to claim 5, wherein: the other end of the extension handle (25) is also internally provided with a thread groove.

7. The multifunctional wrench for automobile maintenance according to claim 1, wherein: the four corners department of draw-in frame (5) all is equipped with installation pole (10), four corners department on installation piece (2) all is equipped with jack (19), installation pole (10) and jack (19) looks adaptation, installation pole (10) top is equipped with external screw thread (20), and installation pole (10) are installed on installation piece (2) through fastening nut (21) from top to bottom.