CN216399438U

CN216399438U - Spanner for mechanical maintenance

Info

Publication number: CN216399438U
Application number: CN202122807813.XU
Authority: CN
Inventors: 任立君; 任佳兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-29
Anticipated expiration: 2031-11-16

Abstract

The utility model provides a wrench for mechanical maintenance, and relates to the technical field of mechanical maintenance tools. The wrench includes a socket and a ratchet assembly; the ratchet wheel assembly comprises a transmission ratchet wheel, the sleeve is fixedly sleeved with the transmission ratchet wheel, the ratchet wheel assembly further comprises an adjusting ring, the sleeve is rotatably sleeved with the adjusting ring, the adjusting ring is fixedly connected with an adjusting handle, the adjusting handle is hinged with a pawl, and the pawl is in rotating fit with the ratchet wheel. The utility model can improve the dismounting efficiency of the nut.

Description

Spanner for mechanical maintenance

Technical Field

The utility model relates to the technical field of mechanical maintenance tools, in particular to a wrench for mechanical maintenance.

Background

A wrench is a common installation and removal tool. Hand tools for turning bolts, screws, nuts and other threaded fasteners for tightening openings or trepanning of bolts or nuts using the principle of leverage. The wrench is usually provided with an opening or a trepan for clamping the handle part and applying external force to the handle part so as to screw the bolt or the nut to hold the bolt or the nut, at one end or two ends of the handle part. When the screw is used, external force is applied to the handle part along the rotation direction of the screw thread, and the bolt or the nut can be screwed.

Wrenches are typically made of carbon structural steel or alloy structural steel.

When carrying out the dismantlement of nut to the spanner that uses at present, the nut is gripped to the clamping part of spanner, press the handle of spanner, make the spanner transfer the nut loose, because the distance that the spanner pushed down is shorter relatively, need frequently dismantle the spanner usually, adjust the spanner position so that exert oneself, when single bolt is dismantled, there is the problem of wasting time and energy, serious reduction the dismantlement efficiency of nut, especially when dismantling to constrictive nut position, more be difficult for carrying out the dismantlement of nut.

In summary, we provide a wrench for mechanical maintenance to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spanner for mechanical maintenance, which can improve the disassembly efficiency of a nut.

The embodiment of the utility model is realized by the following steps:

the embodiment of the application provides a wrench for mechanical maintenance, which comprises a sleeve and a ratchet wheel assembly;

the ratchet wheel assembly comprises a transmission ratchet wheel, the sleeve is fixedly sleeved with the transmission ratchet wheel, the ratchet wheel assembly further comprises an adjusting ring, the sleeve is rotatably sleeved with the adjusting ring, the adjusting ring is fixedly connected with an adjusting handle, the adjusting handle is hinged with a pawl, and the pawl is in rotating fit with the ratchet wheel.

In some embodiments of the present invention, the sleeve is a double-ended sleeve, the two clamping portions of the sleeve are disposed symmetrically, and the ratchet assembly is disposed in the middle of the sleeve.

In some embodiments of the utility model, the sleeve is provided with an annular groove in rotational engagement with the adjustment ring.

In some embodiments of the present invention, the number of the adjusting rings is two, two of the adjusting rings are disposed on both sides of the ratchet wheel, and the adjusting handle is connected to both of the adjusting rings.

In some embodiments of the utility model, the pawl is connected to the adjustment handle by a spring.

In some embodiments of the present invention, a connection column is disposed outside the adjustment handle, and a diameter of the connection column is smaller than a diameter of the adjustment handle.

In some embodiments of the present invention, the pawl is provided with two ratchet tips, and the two ratchet tips are respectively abutted with the two wheel grooves of the ratchet wheel.

In some embodiments of the present invention, the side wall of the annular groove is circumferentially arrayed with a plurality of limiting grooves, the limiting grooves are semicircular, one side of the adjusting ring opposite to the limiting groove is provided with a butt-joint groove, the butt-joint groove is opposite to one of the limiting grooves, the butt-joint groove is provided with a spring, and the outer side of the spring is provided with a hemispherical fixture block in butt joint with the limiting groove.

In some embodiments of the present invention, the abutting groove is provided with a connecting plate in telescopic fit therewith, and the hemispherical fixture block is connected with the spring through the connecting plate;

the ring side of the butt joint groove is provided with a sliding groove, the sliding groove is arranged along the extending direction of the spring, and the ring side of the connecting plate is provided with a sliding block in sliding fit with the sliding groove.

In some embodiments of the present invention, two sliding mechanisms are formed by the sliding groove and the sliding block, and the two sliding mechanisms are symmetrically disposed about a middle portion of the docking groove.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

a mechanical maintenance wrench comprises a sleeve and a ratchet wheel assembly;

When the adjusting handle is pulled to swing anticlockwise, the pawl hinged to the adjusting handle is inserted into teeth of the ratchet wheel, so that the ratchet wheel rotates by a certain angle at the same time, and the ratchet wheel drives the sleeve to rotate by a certain angle, so that the nut is disassembled. When the adjusting handle swings clockwise, the pawl slides on the teeth of the ratchet wheel, and the ratchet wheel is static, so that when the adjusting handle swings continuously and reciprocally, the ratchet wheel rotates intermittently in a one-way mode, the nut is rapidly disassembled, the process that the nut is repeatedly sleeved with the disassembling sleeve is avoided, and the nut is easier and labor-saving. The utility model can improve the dismounting efficiency of the nut.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a wrench for machine maintenance according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of a ratchet according to an embodiment of the present invention;

FIG. 4 is a schematic view of a pawl according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a mechanical maintenance wrench in accordance with an embodiment of the present invention;

FIG. 6 is a partial cross-sectional view of an adjustment ring according to an embodiment of the utility model;

fig. 7 is a partially enlarged view of B in fig. 6.

Icon: 1-sleeve, 2-adjusting ring, 3-adjusting handle, 4-connecting column, 5-ratchet wheel, 6-pawl, 7-annular groove, 8-hemispherical fixture block, 9-connecting plate, 10-sliding block, 11-butt joint groove, 12-sliding groove and 13-limiting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 7, the present embodiment provides a wrench for mechanical maintenance, which includes a socket 1 and a ratchet 5 assembly;

above-mentioned 5 subassemblies of ratchet include transmission ratchet 5, and above-mentioned sleeve 1 is located to above-mentioned transmission ratchet 5 fixed cover, and above-mentioned 5 subassemblies of ratchet still include adjustable ring 2, and above-mentioned sleeve 1 is located to above-mentioned adjustable ring 2 rotation cover, and above-mentioned adjustable ring 2 fixedly connected with adjustment handle 3, above-mentioned adjustment handle 3 articulates there is pawl 6, above-mentioned pawl 6 and above-mentioned ratchet 5 normal running fit.

When the adjusting handle 3 is pulled to swing anticlockwise, the pawl 6 hinged to the adjusting handle 3 is inserted into teeth of the ratchet wheel 5, so that the ratchet wheel 5 rotates at a certain angle, and the ratchet wheel 5 drives the sleeve 1 to rotate at a certain angle, so that the nut is disassembled. When the adjusting handle 3 swings clockwise, the pawl 6 slides on the teeth of the ratchet wheel 5, and the ratchet wheel 5 is stationary, so that when the adjusting handle 3 swings continuously and reciprocally, the ratchet wheel 5 rotates intermittently in a one-way manner, the nut is rapidly disassembled, the process of disassembling the sleeve 1 and sleeving the nut in a reciprocating manner is avoided, and the nut is easier and labor-saving. The utility model can improve the dismounting efficiency of the nut.

In some embodiments of the present invention, the sleeve 1 is a double-headed sleeve 1, the two clamping portions of the sleeve 1 are arranged in a central symmetry, and the ratchet 5 assembly is arranged in the middle of the sleeve 1.

In the above embodiment, the double-headed sleeve 1 is designed such that the nuts can be removed or installed at both ends of the sleeve 1, and the calibers of the clamping portions at both ends of the double-headed sleeve 1 are different, so that the nuts with different calibers can be removed or installed.

In some embodiments of the utility model, the sleeve 1 is provided with an annular groove 7 in rotational engagement with the adjusting ring 2.

In the above embodiment, the adjusting ring 2 is installed in the annular groove 7, and has a limiting effect on the adjusting groove, so that the adjusting ring 2 is prevented from sliding along the axial direction of the sleeve 1, and the stability of rotation of the adjusting ring 2 is improved.

In some embodiments of the present invention, the number of the adjusting rings 2 is two, two adjusting rings 2 are disposed on both sides of the ratchet wheel 5, and the adjusting handle 3 is connected to two adjusting rings 2 at the same time.

In the above embodiment, the whole formed by the two adjusting rings 2 and the adjusting handle 3 is a concave clamping member, the ratchet wheel 5 is located in the notch of the concave clamping member, and the adjusting handle 3 pulls the two adjusting rings 2 to rotate, so as to drive the ratchet wheel 5 to rotate.

In some embodiments of the utility model, the pawl 6 is spring-connected to the adjustment handle 3.

In the above embodiment, one side of the pawl 6 opposite to the adjusting handle 3 is provided with the groove, the spring is arranged in the groove, the stability of the spring installation is improved, and the design of the spring enables the ratchet wheel 5 and the pawl 6 to be matched more reasonably.

In some embodiments of the present invention, a connection column 4 is disposed outside the adjustment handle 3, and a diameter of the connection column 4 is smaller than a diameter of the adjustment handle 3.

In the embodiment, when the large-caliber nut is disassembled, the nut is adjusted to be locked more difficultly only by manually moving the adjusting handle 3 by a maintenance worker, and the force arm is increased by sleeving the hollow pressing rod on the connecting column 4, so that the bolt is disassembled more easily and the efficiency is higher when the bolt is disassembled.

In some embodiments of the present invention, the pawl 6 is provided with two ratchet tips, and the two ratchet tips are respectively abutted with the two wheel grooves of the ratchet wheel 5.

In the above embodiment, the two ratchet tips are respectively butted with the two wheel grooves of the ratchet wheel 5, so that the stress of the single ratchet tip is relatively small, and the problem that when the traditional ratchet tip and the ratchet wheel 5 are designed to be butted singly, the local stress of the single ratchet tip is too large, the pawl 6 is easily damaged, the service life of the pawl 6 is shortened, and the stress fracture of the single pawl 6 is further prevented in use.

In some embodiments of the present invention, the side wall of the annular groove 7 is circumferentially arrayed with a plurality of limiting grooves 13, the limiting grooves 13 are semicircular, one side of the adjusting ring 2 opposite to the limiting groove 13 is provided with a butting groove 11, the butting groove 11 is opposite to one of the limiting grooves 13, the butting groove 11 is provided with a spring, and the outer side of the spring is provided with a hemispherical fixture block 8 butting with the limiting groove 13.

In the above embodiment, when the adjusting handle 3 drives the adjusting ring 2 to rotate, the limiting groove 13 and the hemispherical fixture block 8 interact with each other, the hemispherical fixture block 8 compresses the spring to enter the butt joint groove 11, and the adjusting ring 2 can rotate; when the adjusting ring 2 is not used, the hemispherical fixture block 8 enters the limiting groove 13 under the action of the elastic force of the spring, and the adjusting ring 2 and the sleeve 1 cannot rotate relatively under the limiting action of the hemispherical fixture block 8, so that the adjusting handle 3 is kept fixed.

In some embodiments of the present invention, the docking slot 11 is provided with a connecting plate 9 in telescopic fit therewith, and the hemispherical fixture block 8 is connected with the spring through the connecting plate 9;

a sliding groove 12 is provided on the ring side of the abutting groove 11, the sliding groove 12 is provided along the extending direction of the spring, and a slider 10 which is slidably engaged with the sliding groove 12 is provided on the ring side of the connecting plate 9.

In the above embodiment, the outer end of the sliding groove 12 does not penetrate the outer side of the abutting groove 11, the sliding fit between the sliding block 10 and the sliding groove 12 prevents the hemispherical latch 8 from slipping off the abutting groove 11, and when the sliding block 10 is located at the outermost side of the sliding groove 12, the hemispherical latch 8 partially protrudes outward from the abutting groove 11.

In some embodiments of the present invention, two sliding mechanisms are formed by the sliding groove 12 and the sliding block 10, and the two sliding mechanisms are symmetrically disposed about a middle portion of the docking groove 11.

In the above embodiment, the sliding fit between the connection plate 9 and the docking slot 11 is realized by two sets of sliding mechanisms, so that the relative sliding of the connection plate 9 is more stable. It should be noted here that the number of the sliding mechanisms is two, which is only one embodiment of the present invention, and may be multiple in other embodiments.

In summary, embodiments of the present invention provide a wrench for machine maintenance, which has at least the following technical effects:

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spanner for mechanical maintenance is characterized by comprising a sleeve and a ratchet wheel assembly;

the ratchet assembly comprises a transmission ratchet, the transmission ratchet is fixedly sleeved on the sleeve, the ratchet assembly further comprises an adjusting ring, the adjusting ring is rotatably sleeved on the sleeve, the adjusting ring is fixedly connected with an adjusting handle, the adjusting handle is hinged with a pawl, and the pawl is in rotating fit with the ratchet.

2. The mechanical maintenance wrench according to claim 1, wherein the socket is a double-ended socket, the two clamping portions of the socket are symmetrically disposed, and the ratchet assembly is disposed in the middle of the socket.

3. A wrench as claimed in claim 1, wherein the socket is provided with an annular groove which is in rotational engagement with the adjustment ring.

4. The mechanical maintenance wrench as claimed in claim 3, wherein the number of the adjusting rings is two, two adjusting rings are disposed on both sides of the ratchet wheel, and the adjusting handle is connected to both adjusting rings.

5. A mechanical service wrench as claimed in claim 1, wherein said pawl is spring connected to said adjustment handle.

6. The mechanical maintenance wrench according to claim 1, wherein a connecting column is provided on an outer side of the adjusting handle, and a diameter of the connecting column is smaller than a diameter of the adjusting handle.

7. A mechanical service wrench as claimed in claim 3, wherein said pawl is provided with two ratchet tips, said two ratchet tips respectively abutting two wheel grooves of said ratchet wheel.

8. The mechanical maintenance wrench according to claim 7, wherein the side wall of the annular groove is circumferentially arrayed with a plurality of limiting grooves, the limiting grooves are semicircular, one side of the adjusting ring opposite to the limiting groove is provided with a butt-joint groove, the butt-joint groove is opposite to one of the limiting grooves, the butt-joint groove is provided with a spring, and the outer side of the spring is provided with a hemispherical clamping block which is in butt joint with the limiting groove.

9. The mechanical maintenance wrench according to claim 8, wherein the butt-joint groove is provided with a connecting plate in telescopic fit with the butt-joint groove, and the hemispherical fixture block is connected with the spring through the connecting plate;

10. The mechanical maintenance wrench according to claim 9, wherein the sliding grooves and the sliding blocks form two sliding mechanisms, and the two sliding mechanisms are symmetrically arranged about the middle of the butt-joint groove.