CN110238783B

CN110238783B - Hand-operated wrench and wrench equipment capable of adapting to sizes of different nuts

Info

Publication number: CN110238783B
Application number: CN201910525988.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Laixi Yingde Equipment Technology Center
Current assignee: Anjiyuanhao Swivel Chair Accessories Factory
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2021-06-29
Anticipated expiration: 2039-06-18
Also published as: CN110238783A

Abstract

The invention provides a hand-operated wrench and wrench equipment suitable for different nut sizes, which comprises a hand-operated arc pawl device and a nut clamping device, wherein the hand-operated arc pawl device comprises a hand-operated plate, a pawl round block and a plurality of limiting springs, the nut clamping device comprises a hollow shell, a screw rod adjusting handle and two nut clamping bodies which are matched in an opposite direction, an arc tooth ratchet wheel extends from the middle part of the outer side wall of the shell along the circumferential direction, the arc tooth ratchet wheel is matched with the pawl round block, two symmetrical guide rails are arranged on the inner side wall of the shell above the arc tooth ratchet wheel, each guide rail is in sliding fit with the corresponding nut clamping body, the side wall of the shell below the arc tooth ratchet wheel is clamped in a through hole, and the screw rod adjusting handle penetrates through the side wall of. Compared with the prior art, the adjustable nut has the functions of adjusting and adapting to different nut sizes, and the defects of different wrenches required by different nut sizes are eliminated, so that the universality is expanded, and the use is convenient; meanwhile, the operation is simple, and the structure is novel and unique.

Description

Hand-operated wrench and wrench equipment capable of adapting to sizes of different nuts

Technical Field

The invention belongs to the technical field of nut tools, and relates to a hand-operated wrench and wrench equipment capable of adapting to different nut sizes.

Background

Currently, a wrench is a common installation and removal tool that utilizes the principle of leverage to turn bolts, screws, nuts and other hand tools that threadably secure open or trepanned fasteners of bolts or nuts. The wrench is usually provided with a handle part at one end or two ends of the handle part for clamping the handle part and applying external force, so that the bolt or the nut can be screwed to hold the opening or the trepanning of the bolt or the nut, and the bolt or the nut can be screwed by applying external force to the handle part along the rotation direction of the thread when the wrench is used.

In the prior art, for example, chinese patent CN206913023U discloses a rocker wrench, which includes a wrench head and a wrench handle, wherein a force application hole is formed in the wrench head, and the force application hole is sequentially provided with a first force application plane, a second force application plane, a third force application plane and an arc surface along a clockwise direction; the force application end of the wrench handle penetrates through the arc surface from the bottom of the wrench head to be inserted into the force application hole, the wrench head is hinged with the wrench handle through the pin, the hinged part is provided with a torsional spring, and the force application end can rotate around the hinged point between the wrench head and the wrench handle in the force application hole. It has the problems that: to above-mentioned rocker spanner, its adaptability to the nut of equidimension not is relatively poor, and it is comparatively complicated to operate when adjusting the nut that is by the centre gripping, leads to the commonality of spanner relatively poor, is unfavorable for the user to use.

Therefore, the invention provides the hand-operated wrench which can adapt to different nut sizes.

In addition, the invention also provides wrench equipment.

Disclosure of Invention

In view of the above problems in the prior art, an object of the present invention is to provide a hand wrench adaptable to different nut sizes, so that the hand wrench has the function of adjusting to adapt to different nut sizes, and the defects of different wrenches due to different nut sizes are eliminated, thereby expanding the versatility and facilitating the use of users; meanwhile, the operation is simple, and the structure is novel and unique.

The purpose of the invention can be realized by the following technical scheme:

a hand-operated wrench adaptable to different nut sizes comprises a hand-operated arc pawl device and a nut clamping device, wherein the hand-operated arc pawl device comprises a hand-operated plate, a pawl round block and a plurality of limiting springs, a through hole is formed in the front end of the hand-operated plate, an inclined plate extends out of the hand-operated plate close to the through hole, the inclined plate is provided with a vertical plate body attached to the side wall of the hand-operated plate and a top plate body attached to the top of the hand-operated plate, the top plate body is provided with a cavity for accommodating the pawl round block and the limiting springs, sliding grooves are formed in the top of the top plate body and the top of the hand-operated plate connected with the top plate body, guide rods in sliding fit with the corresponding sliding grooves extend from the top of the pawl round block and the bottom of the pawl round block, one;

nut clamping device is including being hollow casing, lead screw regulation and shaking hands and two complex nut holding bodies in opposite directions, and the middle part of casing lateral wall extends along circumference has the circular arc tooth ratchet, the circular arc tooth ratchet with the pawl circle piece cooperatees, and the casing inner wall that is located circular arc tooth ratchet top is equipped with the guide rail of two symmetries, every guide rail and corresponding nut holding body sliding fit, and the casing lateral wall block that is located circular arc tooth ratchet below is in the through-hole, lead screw regulation is shaken hands and is passed casing lateral wall and every nut holding body spiro union.

As preferred technical scheme, every the nut supporting body all includes the horizontal pole, along the integrative montant that sets up in horizontal pole both ends, along the arc pole that stretches out of horizontal pole lateral wall and along the slope pole that another lateral wall of horizontal pole stretches out, the slope pole with an arc pole tip sets up relatively, horizontal pole, arc pole and slope pole all unsettled set up in the cavity of casing, every the montant with corresponding guide rail sliding fit.

As the preferred technical scheme, hand circular arc pawl device still includes supplementary kicking block, supplementary kicking block partly block in the pawl circle piece lateral wall, supplementary kicking block another part sets up in the cavity, keeps away from the supplementary kicking block tip of pawl circle piece lateral wall and is equipped with the several and places the hole, and every spacing spring one end stretches into respectively correspondingly place downthehole.

As a preferable technical scheme, the number of the limiting springs and the number of the placing holes are two, and each placing hole is alternately arranged at the end part of the auxiliary top block.

As the preferred technical scheme, the bottom of the shell is provided with a ring edge, and the top of the ring edge is attached to the bottom of the hand-cranking plate.

As a preferable technical scheme, a cylindrical body extends from the end part of the hand cranking plate far away from the through hole along the radial direction.

As the preferred technical scheme, the screw rod adjusting handle comprises an adjusting rod, a circular disc and a plurality of holding rods, the adjusting rod is provided with a smooth rod part and a screw rod part integrally connected with the smooth rod part, the screw rod part is in threaded connection with the corresponding nut clamping body, the end part of the smooth rod part is integrally connected with the circular disc, and each holding rod is arranged on the side wall of the circular disc.

As a preferable technical scheme, the number of the holding rods is three, and each holding rod is uniformly arranged on the side wall of the circular plate.

As a preferred technical scheme, the end part of the hand-cranking plate close to the through hole is gradually reduced towards the other end of the hand-cranking plate.

The invention also provides wrench equipment which comprises the hand-operated wrench capable of adapting to different nut sizes.

As mentioned above, the hand-operated wrench suitable for different nut sizes has the following beneficial effects:

after the hand-operated spanner which can adapt to different nut sizes is utilized, compared with the prior art, due to the adoption of the structure, by arranging the hand-operated arc pawl device and the nut clamping device, when a user uses the hand-operated arc pawl device, the user operates the lead screw to adjust the position of the nut clamping body in a hand-operated manner, the nuts to be clamped in different sizes are clamped, then the hand-operated plate is operated to make the nuts to be clamped in reciprocating motion, under the action of the limiting spring, the pawl round block can be jacked up periodically and the arc tooth ratchet wheel in the nut clamping group is pushed periodically to rotate, and the purpose that the clamped nuts are pushed to rotate on one side by reciprocating hand is achieved; therefore, the nut has the function of adjusting and adapting to different nut sizes, and the defects of different wrenches required by different nut sizes are overcome, so that the universality is expanded, and the use by a user is facilitated; meanwhile, the operation is simple, and the structure is novel and unique.

The present invention will be further described with reference to the following embodiments.

Drawings

FIG. 1 is a perspective view of a hand wrench adaptable to different nut sizes;

FIG. 2 is a bottom view of a hand wrench adaptable to different nut sizes from another perspective;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of a hand wrench adaptable to different nut sizes with the top of the housing broken;

FIG. 5 is a schematic structural view of a hand-operated arc pawl device of a hand-operated wrench adaptable to different nut sizes;

fig. 6 is a partial structural schematic diagram of a hand-operated arc pawl device of a hand-operated wrench adaptable to different nut sizes.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications. The specific structure can be explained with reference to the drawings of the patent application.

In the following embodiments, the direction is defined by the arrow in fig. 1, the left side of the paper surface is the left direction, the right side of the paper surface is the right direction, the upper side of the paper surface is the upper direction, the lower side of the paper surface is the lower direction, the front side perpendicular to the paper surface is the front direction, the rear side perpendicular to the paper surface is the rear direction, the inner cavity of the top plate body is the inside, and the outer wall of the top plate body is the outside.

Referring to fig. 1 to 6, the hand-operated wrench suitable for different nut sizes comprises a hand-operated arc pawl device 1 and a nut clamping device 2, wherein the hand-operated arc pawl device 1 comprises a hand-operated plate 10, a pawl round block 11 and a plurality of limiting springs 12, the front end of the hand-operated plate 10 is provided with a through hole 100, an inclined plate 13 extends out of the hand-operated plate 10 close to the through hole 100, the inclined plate 13 is provided with a vertical plate body 130 attached to the side wall of the hand-operated plate 10 and a top plate body 131 attached to the top of the hand-operated plate 10, the top plate body 131 is provided with a cavity 1310 for accommodating a pawl round block 11 and a limiting spring 12, the top of the top plate body 131 and the top of the hand-operated plate 10 connected with the top plate body 131 are both provided with sliding grooves 14, guide rods 15 in sliding fit with the corresponding sliding grooves 14 extend from the top of the pawl round block 11 and the bottom of the pawl round block 11, one end of each limiting spring 12 is abutted against the inner side wall 1310 of the cavity;

nut clamping device 2 is including being hollow casing 20, lead screw regulation shake hands 21 and two nut holding body 22 of complex in opposite directions, and the middle part of casing 20 lateral wall extends along circumference has circular arc tooth ratchet 23, circular arc tooth ratchet 23 with pawl circle piece 11 cooperatees, and the 20 inside walls of casing that are located circular arc tooth ratchet 23 top are equipped with the guide rail 200 of two symmetries, every guide rail 200 and corresponding nut holding body 22 sliding fit, and the 20 lateral wall blocks of casing that are located circular arc tooth ratchet 23 below are in through-hole 100, the lead screw regulation is shaken hands 21 and is passed the 20 lateral wall of casing and every nut holding body 22 spiro union. Compared with the prior art, the hand-operated circular arc pawl device 1 and the nut clamping device 2 are arranged, when a user uses the hand-operated circular arc pawl device, the screw rod adjusting handle 21 is operated to adjust the position of the nut clamping body 22, nuts to be clamped in different sizes are clamped, then the hand-operated plate 10 is operated to make the nuts to be clamped shake in a reciprocating mode, under the action of the limiting spring 12, the pawl round block 11 can be jacked up periodically and can push the circular arc tooth ratchet wheel 23 in the nut clamping group to rotate periodically, and the purpose that the clamped nuts are pushed to rotate in a single side in a reciprocating and hand mode is achieved; therefore, the nut has the function of adjusting and adapting to different nut sizes, and the defects of different wrenches required by different nut sizes are overcome, so that the universality is expanded, and the use by a user is facilitated; meanwhile, the operation is simple, and the structure is novel and unique.

Referring to fig. 1 and 4, each nut holding body 22 includes a cross bar 220, a vertical bar 221 integrally disposed at two ends of the cross bar 220, an arc bar 222 extending along one side wall of the cross bar 220, and an inclined bar 223 extending along the other side wall of the cross bar 220, the inclined bar 223 is disposed opposite to one end of the arc bar 222, the cross bar 220, the arc bar 222, and the inclined bar 223 are all suspended in the cavity (not shown in the figure) of the housing 20, and each vertical bar 221 is slidably engaged with the corresponding guide rail 200.

As shown in fig. 5 and 6, since the thickness of the circular pawl block 11 is small, after the limiting spring 12 is installed, in order to avoid dispersion of the acting force of the limiting spring 12 when the user uses the device, the hand-operated circular arc pawl device 1 further includes an auxiliary top block 16, a part of the auxiliary top block 16 is clamped on the side wall of the circular pawl block 11, the other part of the auxiliary top block 16 is disposed in the cavity 1310, a plurality of placing holes 17 are disposed at the end of the auxiliary top block 16 far away from the side wall of the circular pawl block 11, and one end of each limiting spring 12 extends into the corresponding placing hole 17. The auxiliary ejecting block 16 is arranged, and the plurality of placing holes 17 are formed in the end part of the auxiliary ejecting block 16, so that the acting force of the limiting spring 12 can be guided, the dispersion phenomenon of the acting force of the limiting spring 12 when a user uses the limiting spring is eliminated, the limiting spring 12 is ensured not to slip, the stability of the limiting spring in the using process is improved, and the using experience of the user is improved; meanwhile, the side wall of the pawl round block 11 is in a circular ring shape, and the auxiliary ejecting block 16 is arranged, so that the installation of the limiting spring 12 is facilitated, a better installation acting point is provided, the slipping phenomenon is avoided during installation, and the installation efficiency is improved.

As shown in fig. 6, the number of the limiting springs 12 and the placing holes 17 is two, and each of the placing holes 17 is alternately disposed at the end of the auxiliary top block 16.

Referring to fig. 2 or 4, a ring edge 201 is disposed at the bottom of the housing 20, and the top of the ring edge 201 is attached to the bottom of the hand-cranking plate 10.

As shown in fig. 1, 3 or 5, a cylinder 101 extends radially from the end of the hand cranking plate 10 away from the through hole 100. The cylindrical body 101 is arranged, and a user only needs to operate the cylindrical body 101 by hand, so that the use is convenient.

Referring to fig. 1 and 4, the lead screw adjusting handle 21 includes an adjusting lever 210, a circular plate 211 and a plurality of holding levers 212, the adjusting lever 210 has a smooth rod portion 2100 and a lead screw portion 2101 integrally connected to the smooth rod portion 2100, the lead screw portion 2101 is screwed to the corresponding nut holder 22, the end of the smooth rod portion 2100 is integrally connected to the circular plate 211, and each holding lever 212 is disposed on the sidewall of the circular plate 211. Through the lead screw adjusting handle 21 with the structure, the operation of a user is facilitated, and slipping is avoided.

As shown in fig. 1, the number of the holding rods 212 is three, and each of the holding rods 212 is uniformly arranged on the side wall of the circular plate 211.

As shown in fig. 1 or fig. 5, the end of the hand cranking plate 10 near the through hole 100 is gradually reduced toward the other end of the hand cranking plate 10.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a hand formula spanner of adaptable different nut size which characterized in that: the hand-operated circular arc pawl device comprises a hand-operated circular arc pawl device and a nut clamping device, wherein the hand-operated circular arc pawl device comprises a hand-operated plate, a pawl round block and a plurality of limiting springs, a through hole is formed in the front end of the hand-operated plate, an inclined plate extends out of the hand-operated plate close to the through hole, the inclined plate is provided with a vertical plate body attached to the side wall of the hand-operated plate and a top plate body attached to the top of the hand-operated plate, the top plate body is provided with a cavity for accommodating the pawl round block and the limiting springs, sliding grooves are formed in the top of the top plate body and the top of the hand-operated plate connected with the top plate body, guide rods in sliding fit with the corresponding sliding grooves extend from the top of the pawl round block; the nut clamping device comprises a hollow shell, a screw rod adjusting handle and two nut clamping bodies which are matched in opposite directions, wherein an arc-tooth ratchet wheel extends from the middle of the outer side wall of the shell along the circumferential direction, the arc-tooth ratchet wheel is matched with the pawl round block, two symmetrical guide rails are arranged on the inner side wall of the shell above the arc-tooth ratchet wheel, each guide rail is in sliding fit with the corresponding nut clamping body, the side wall of the shell below the arc-tooth ratchet wheel is clamped in the through hole, and the screw rod adjusting handle penetrates through the side wall of the shell and is in threaded connection with each nut clamping body; each nut clamping body comprises a cross rod, vertical rods integrally arranged along two ends of the cross rod, an arc rod extending out of one side wall of the cross rod and an inclined rod extending out of the other side wall of the cross rod, the inclined rod is arranged opposite to one end part of the arc rod, the cross rod, the arc rod and the inclined rod are all arranged in the cavity of the shell in a hanging manner, and each vertical rod is in sliding fit with the corresponding guide rail; the hand-operated arc-shaped pawl device further comprises an auxiliary ejecting block, one part of the auxiliary ejecting block is clamped on the side wall of the pawl round block, the other part of the auxiliary ejecting block is arranged in the cavity, a plurality of placing holes are formed in the end part of the auxiliary ejecting block far away from the side wall of the pawl round block, and one end of each limiting spring extends into the corresponding placing hole; the number of the limiting springs and the number of the placing holes are two, and each placing hole is alternately arranged at the end part of the auxiliary top block; the bottom of the shell is provided with a ring edge, and the top of the ring edge is attached to the bottom of the hand-cranking plate; the end part of the hand-cranking plate far away from the through hole radially extends to form a cylindrical body; the screw rod adjusting handle comprises an adjusting rod, a circular disc and a plurality of holding rods, the adjusting rod is provided with a smooth rod part and a screw rod part integrally connected with the smooth rod part, the screw rod part is in threaded connection with the corresponding nut clamping body, the end part of the smooth rod part is integrally connected with the circular disc, and each holding rod is arranged on the side wall of the circular disc; the number of the holding rods is three, and each holding rod is uniformly distributed on the side wall of the circular plate; the end part of the hand-cranking plate close to the through hole is gradually reduced towards the other end of the hand-cranking plate.

2. A wrench device, comprising: the hand wrench capable of adapting to different nut sizes comprises the hand wrench capable of adapting to any one of the claims 1.