CN114871982B

CN114871982B - Multi-specification replaceable nut anti-drop wrench with limited inclined space

Info

Publication number: CN114871982B
Application number: CN202210696329.0A
Authority: CN
Inventors: 刘何荣; 彭爱民; 范伟; 吴陶; 王彬
Original assignee: Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Current assignee: Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-09-29
Anticipated expiration: 2042-06-20
Also published as: CN114871982A

Abstract

The utility model discloses a multi-specification replaceable nut anti-drop wrench with limited inclined space, which comprises the following components: the base, the base has the sleeve mounting hole that the plane direction vertically runs through, from upwards detachable installing the sleeve in the sleeve mounting hole, the sleeve is used for bearing and waits to operate the nut, the bottom plate is installed to the base bottom, the bottom plate middle part has the bottom plate centre bore that supplies to wait to operate the screw to stretch out, bottom plate restriction sleeve moves down, base one side has the arm of force that extends along the outside, arm of force tip has the handle, the arm of force is S-shaped curved structure in vertical direction, makes the handle be higher than or be less than the height of base, solves among the prior art to limited slope space and need explosion-proof, antimagnetic operating mode when carrying out the assembly operation, the nut drops easily and inconvenient technical problem of operation.

Description

Multi-specification replaceable nut anti-drop wrench with limited inclined space

Technical Field

The utility model belongs to the technical field of tools, and particularly relates to a multi-specification replaceable nut anti-falling wrench with limited inclined space.

Background

In the production process of products, two workpieces are often required to be connected together by adopting fasteners such as bolts and nuts, due to the structural reasons of certain workpieces, the space of the connecting part is limited and an inclined angle exists, under the condition, the nuts are often arranged in the limited inclined space, the nuts can be installed and removed only by using inclined tools, and the nuts cannot be held by hands. The common method is to manufacture a socket wrench with an inclined angle, extend the socket wrench with an inclined structure into an inclined space of a workpiece, and clamp the socket wrench on a nut through touch; if the nut is installed, the nut is placed in the socket wrench, and then the wrench is carefully stretched into the limited space of the workpiece by the wing wings. The nut is easy to fall into the inclined space and is difficult to take out, if the nut falls into the limited space during assembly, the nut can be taken out only by dismantling each part, the integral progress is seriously affected, and other parts are possibly damaged to cause serious quality hidden trouble. If nuts with a plurality of specifications are required to be manufactured into wrenches with different specifications, the cost is high and the storage is difficult.

20180410 discloses an utility model patent with application number CN 201721052106.1: the inventor of a special bolt dismounting device in narrow space: li Yize. The utility model according to claim is characterized in that: the transmission shaft of the rod-shaped dismounting head and the transmission shaft of the dismounting handle pass through a rotating device positioned in the dismounting body, and the transmission device is a gear transmission device or a belt transmission device. It is thus clear that the utility model does not solve the problem of the nut falling off prevention.

20180605 discloses an utility model patent with application number CN 201721513642.7: inclined space bolt dismantles specialized tool, the inventor: liang, yuan Gang, etc. The method according to claim is characterized in that: the electric wrench comprises a transmission flexible shaft, wherein a port sleeve is arranged at the output end of the transmission flexible shaft, a stable handle is arranged on the port sleeve, a sleeve is arranged on the transmission flexible shaft, the input end of the transmission flexible shaft is correspondingly arranged at the output end of the electric wrench, one end of the sleeve is fixedly arranged on the port sleeve, and the other end of the sleeve is arranged on the outer edge of the output port of the electric wrench. Therefore, the utility model also does not solve the problem of anti-falling of the nut, and meanwhile, the utility model adopts an electric tool, the anti-explosion function is not shown in the specification, and the utility model is not suitable for the environment with the anti-explosion requirement.

20200331 discloses an utility model patent with application number CN 201911238558.2: auxiliary tools and devices for fastening and removing screws in confined spaces, inventors Liu Xinyu, li Xin, gu Pengyue, etc. According to the abstract, the utility model comprises a base body and a clamping part, wherein the base body is provided with a first accommodating cavity and a second accommodating cavity, and the clamping part is arranged in the second accommodating cavity. The utility model mainly solves the technical problem that the screw or the printing plate is easy to be damaged when the screw is disassembled by the tightening machine in the limited space. The problem of falling off during the installation or the disassembly of the nut in the limited space is not solved at all.

20200821 discloses an utility model patent with the application number of CN 201921989943.6: limited space bolt tightening device, inventor: zhang Haiyan, wang Bo, liu Zhuang, zheng Zhiming, zhang Guijun, lv Rongjun. The device is characterized by comprising a connecting rod, wherein a transmission chain is arranged in the connecting rod; one end of the transmission chain is connected with a ratchet wrench, and the other end of the transmission chain is connected with a sleeve; the sleeve end is also provided with an LED lamp and a Bluetooth camera. According to the specification, the LED lamp does not have an explosion-proof function, meanwhile, according to the specification, the anti-falling device is adopted, residual magnetism possibly remains in a product after use, and the anti-falling device is not applicable to non-magnetic nuts such as stainless steel or titanium alloy.

20220107 discloses an utility model patent with the application number of CN 202111314916.0: limited space nut anti-drop installation spanner, inventor: liu Herong, jinzhen, longzhun Jiang, van Wei, yu Xu east. The utility model is characterized by comprising a base, a force arm, a handle, a ratchet wheel component and a baffle component which are sequentially arranged from front to back, wherein the front end of the base is provided with an upper cavity and a lower cavity which are communicated, the ratchet wheel component is arranged in the lower cavity, the baffle component is arranged in the upper cavity, the upper end of the force arm is provided with a head cavity, a rod cavity and a tail cavity which are sequentially communicated from front to back, and the utility model is not applicable to an inclined limited space as shown in the claims and the drawings in the specification, and meanwhile, a spanner with corresponding specification is required to be used for disassembling nuts with different specifications, so that the cost is higher.

Therefore, how to develop a wrench capable of preventing the nut from falling and operating the limited space when the limited tilting space for assembly is limited under the requirements of explosion prevention and magnetism prevention is a constant thinking problem for those skilled in the art.

Disclosure of Invention

The utility model aims to provide a multi-specification replaceable nut anti-falling wrench with a limited inclined space, which solves the technical problems that nuts are easy to fall off and inconvenient to operate when the limited inclined space and the anti-explosion and anti-magnetic working conditions are required to be assembled in the prior art.

The technical scheme adopted for solving the technical problems is as follows:

a multi-gauge interchangeable nut anti-drop wrench with limited tilting space, comprising: the base, the base has the sleeve mounting hole that the plane direction vertically runs through, from upwards detachable installing the sleeve in the sleeve mounting hole, the sleeve is used for bearing and waits to operate the nut, the bottom plate is installed to the base bottom, the bottom plate middle part has the bottom plate centre bore that supplies to wait to operate the screw to stretch out, the bottom plate restriction sleeve moves down, base one side has the arm of force of extending along the outside, arm of force tip has the handle, the arm of force is S-shaped curved structure in vertical direction, makes the handle be higher than or be less than the height of base.

The utility model relates to a multi-specification replaceable nut anti-drop wrench with limited inclined space, wherein the base and a bottom plate are connected through a quick assembly and disassembly structure, and the quick assembly and disassembly structure comprises: the bottom plate positioning bolt and the bottom plate locking device are arranged, and the bottom plate can rotate around the bottom plate positioning bolt after the bottom plate positioning bolt is installed.

The utility model relates to a multi-specification replaceable nut anti-falling wrench with a limited inclined space, wherein a bottom plate locking device comprises a lock head horizontally arranged in a base, a lock hole is formed in the position, corresponding to the lock head, of the side face of a bottom plate, the lock head enters or leaves the lock hole, a bottom plate locking spring is arranged at the rear end of the lock head, and the lock head is kept to extend out of the base in a natural installation state of the bottom plate locking spring.

The utility model relates to a multi-specification replaceable nut anti-drop wrench with limited inclined space, wherein a bottom plate lock fork extending downwards is arranged on the circumference of a lock head.

According to the multi-specification replaceable nut anti-falling wrench with the limited inclined space, the nut limiting device is arranged at the top of the sleeve mounting hole and can limit the nut to be operated to slide out of the top of the sleeve.

The utility model relates to a multi-specification replaceable nut anti-falling wrench with a limited inclined space, wherein a nut limiting device comprises two baffles which are arranged in a crossing way, the crossing part of the two baffles is connected with the surface of a base through a baffle hinge shaft, and nuts to be operated are blocked or exposed in the changing process of the crossing angle of the two baffles.

According to the multi-specification replaceable nut anti-falling wrench with limited inclined space, the sliding block is hinged between one ends of the baffle, far away from the sleeve, the hinge parts of the baffle and the sliding block are all provided with waist-shaped holes extending along the length direction, the right side of the sliding block is connected with the sliding shaft, the sliding shaft can slide along the horizontal direction in a certain range, the sliding shaft spring is sleeved at the left end of the sliding shaft, and the sliding shaft spring tightly pushes the sliding block in a natural state.

According to the multi-specification replaceable nut anti-falling wrench with the limited inclined space, the right end of the sliding shaft is connected with the steel wire, the tail end of the steel wire is connected with the baffle locking device, and the baffle locking device is located near the handle.

The utility model relates to a multi-specification replaceable nut anti-falling wrench with a limited inclined space, which comprises a steel wire sliding block, wherein the left end of the steel wire sliding block is connected with a steel wire, a sliding block groove for the steel wire sliding block to be installed and slide is arranged on the arm of force, a limit sleeve rod is arranged on the steel wire sliding block in a penetrating manner from bottom to top, a limit pin is arranged in the limit sleeve rod in a sliding manner, a limit spring is arranged at the bottom of the limit pin, the limit spring enables the limit pin to extend out of the surface of the arm of force in a natural state but not separate from the steel wire sliding block, and a locking hole for the limit pin to be clamped in or separated from is arranged on the right side of the sliding block groove.

The utility model relates to a multi-specification replaceable nut anti-falling wrench with limited inclined space, wherein a steel wire groove is formed in the position, corresponding to the steel wire, of the surface of a force arm, the steel wire is positioned in the steel wire groove, and a steel wire guide wheel for pressing and guiding the steel wire is arranged on the inner side of a bending structure of the force arm.

The utility model has the beneficial effects that: the utility model provides a multi-specification interchangeable nut anti-drop spanner in restricted slope space can stretch into the narrow and small space of slope through setting up crooked form arm of force and operate, thereby can realize quick replacement sleeve through setting up bottom plate quick assembly disassembly structure and can adapt to different specification parts, can fix the nut through setting up nut stop device, prevent unexpected dropping in the operation process to this spanner adopts pure mechanical structure, can adapt to the operating mode that has explosion-proof antimagnetic.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a top view (with the cover plate removed) of an embodiment of the present utility model;

FIG. 3 is a bottom view of an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the working state of an embodiment of the present utility model;

FIG. 5 is a partial view of a moment arm of an embodiment of the present utility model;

FIG. 6 is a partial schematic view of a base of an embodiment of the present utility model;

FIG. 7 is a partial schematic view of a sleeve according to an embodiment of the present utility model;

fig. 8 is a partial schematic view of a baffle lock device according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 8, a limited tilting space multi-gauge interchangeable nut anti-drop wrench, comprising: the base 100, the base 100 has the sleeve mounting hole 101 that the plane direction vertically runs through, the sleeve 200 is installed to detachable from bottom to top in the sleeve mounting hole 101, sleeve 200 is used for bearing waiting to operate nut 1001, the bottom plate 300 is installed to the base 100 bottom, the bottom plate 300 middle part has the bottom plate centre bore 301 that supplies waiting to operate screw 1000 to stretch out, bottom plate 300 restriction sleeve 200 moves down, base 100 one side has the arm of force 400 that extends along the outside, arm of force 400 tip has handle 500, arm of force 400 is the S-shaped bending structure in vertical direction, makes handle 500 be higher than or be less than the height of base 100, is spline fit between sleeve 200 and the sleeve mounting hole 101 generally, and sleeve 200 installs from bottom to top, and sleeve mounting hole 101 is the step hole, restriction sleeve 200 wears out from the top.

In a preferred embodiment of the present utility model, the connection between the base 100 and the bottom plate 300 is achieved through a quick assembly disassembly structure, which includes: the base plate 300 can rotate around the base plate positioning bolt 302 after the base plate positioning bolt 302 is installed, when the sleeves 200 with different specifications are replaced, only the base plate locking device 600 is required to be loosened, the base plate 300 can be rotated to one side, after the sleeve 200 is replaced by exposing the sleeve mounting holes 101, the sleeve 200 is blocked by rotating the base plate 300 back, and the base plate locking device 600 is locked, so that the assembly and the fixation of the base plate 300 are realized.

In a preferred embodiment of the present utility model, the bottom locking device 600 includes a locking head 601 horizontally disposed in the base 100, a lock hole is formed at a position corresponding to the position of the locking head 601 on the side surface of the bottom 300, the locking head 601 enters or leaves the lock hole, a bottom locking spring 602 is disposed at the rear end of the locking head 601, the locking head 601 is kept to extend out of the base 100 in a natural installation state of the bottom locking spring 602, a bottom locking head shift fork 603 extending downward is circumferentially disposed on the locking head 601, the locking head 601 is kept to extend under the action of the bottom locking spring 602 and is matched with the lock hole of the locking head 601, when the bottom 300 needs to be opened, the bottom locking head shift fork 603 is pulled rightward by hand to disengage the locking head 601 from the lock hole of the bottom 300, so that the bottom 300 can rotate around the bottom positioning bolt 302 to expose the sleeve mounting hole 101, the bottom locking head 603 is pulled rightward again by hand after the operation is completed, the bottom locking head shift fork 603 is turned back to release the bottom locking head 601 into the lock hole of the bottom 300, and locking is achieved.

In the preferred embodiment of the present utility model, the top of the sleeve mounting hole 101 is provided with a nut limiting device 700, and the nut limiting device 700 can limit the nut 1001 to be operated from sliding out from the top of the sleeve 200, so that the nut 1001 to be operated can be limited and fixed after being mounted, the screw hole of the nut 1001 to be operated is not blocked, and the inner hole of the sleeve 200 can be completely exposed when the nut 1001 to be operated needs to be loaded or unloaded.

In the preferred embodiment of the present utility model, the nut limiting device 700 includes two baffles 701 disposed in a crossing manner, the crossing portion of the two baffles 701 is connected to the surface of the base 100 through a baffle hinge shaft 702, the nuts 1001 to be operated are blocked or exposed during the changing process of the crossing angle of the two baffles 701, and the wall thickness position of the nuts 1001 to be operated is blocked by the two baffles 701, so that the dismounting operation is not affected under the condition that the nuts fall.

In the preferred embodiment of the present utility model, a sliding block 703 is hinged between one end of the baffle 701 far away from the sleeve 200, kidney-shaped holes extending along the length direction are formed at the hinged positions of the baffle 701 and the sliding block 703, a sliding shaft 704 is connected to the right side of the sliding block 703, the sliding shaft 704 can slide along a certain range in the horizontal direction, a sliding shaft spring 705 is sleeved at the left end of the sliding shaft 704, the sliding shaft spring 705 naturally tightens the sliding block 703, so that the sliding block 703 is pushed to operate in the horizontal movement process of the sliding shaft 704, and the sliding block 703 is hinged with the baffle 701 through the kidney-shaped holes, so that the horizontal movement of the sliding block 703 is converted into a scissor-shaped opening and closing movement of the baffle 701, a cover plate 900 is arranged above the baffle 701, and a cover plate hole 901 is formed at the position corresponding to the sleeve mounting hole 101.

In a preferred embodiment of the present utility model, a steel wire 706 is connected to the right end of the sliding shaft 704, and a baffle locking device 800 is connected to the end of the steel wire 706, where the baffle locking device 800 is located near the handle 500, so that an operator can remotely operate the opening and closing of the baffle 701 at the end of the handle 500.

In the preferred embodiment of the present utility model, the baffle locking device 800 comprises a steel wire sliding block 801, the left end of the steel wire sliding block 801 is connected with a steel wire 706, the force arm 400 is provided with a sliding block groove 401 for the installation and sliding of the steel wire sliding block 801, a limit sleeve rod 802 is arranged on the steel wire sliding block 801 in a penetrating way from bottom to top, a limit pin 803 is arranged on the limit sleeve rod 802 in a sliding way, a limit spring 804 is arranged at the bottom of the limit pin 803, the limit spring 804 naturally enables the limit pin 803 to extend out of the surface of the force arm 400 but not separate from the steel wire sliding block 801, the right side of the sliding block groove 401 is provided with a locking hole 402 for the clamping or separating of the limit pin 803, the steel wire sliding block 801 is normally aligned leftwards under the action of a sliding shaft spring 705, at this time, the two baffles 701 are in an open state to be able to freely take and put the nuts 1001 to be operated, when taking and putting are completed, the bottom of the limit sleeve rod 802 extends out of the arm 400, so that the operation is convenient, the limit sleeve rod 802 is pulled rightwards by hand, after reaching a certain position, the limit pin 803 is pressed to continue to slide rightwards until reaching the locking hole 402, the limit pin 803 moves upwards under the action of the limit spring 804 and is blocked into the locking hole 402, at this time, the crossing angle of the two baffles 701 becomes smaller to axially block the nuts 1001 to be operated, the nuts are prevented from falling out, when the baffles 701 need to be loosened, the limit pin 803 is pressed down to enable the limit sleeve rod 802 to move leftwards, so that the crossing angle of the two baffles 701 becomes larger, and the nuts 1001 to be operated are exposed.

In the preferred embodiment of the utility model, a wire groove 403 is formed on the surface of the force arm 400 corresponding to the position of the wire 706, the wire 706 is positioned in the wire groove 403, and a wire guide wheel 404 for pressing and guiding the wire 706 is arranged on the inner side of the bending structure of the force arm 400.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims

1. The utility model provides a many specifications of restricted slope space interchangeable nut anti-drop spanner which characterized in that includes: the base (100), the base (100) has a sleeve mounting hole (101) vertically penetrating in the plane direction, a sleeve (200) is detachably mounted in the sleeve mounting hole (101) from bottom to top, the sleeve (200) is used for bearing a nut (1001) to be operated, a bottom plate (300) is mounted at the bottom of the base (100), a bottom plate center hole (301) for the screw (1000) to extend out of the bottom plate (300) is formed in the middle of the bottom plate (300), the bottom plate (300) limits the sleeve (200) to move downwards, a force arm (400) extending along the outer side is formed on one side of the base (100), a handle (500) is arranged at the end of the force arm (400), and the force arm (400) is in an S-shaped bending structure in the vertical direction, so that the handle (500) is higher than or lower than the height of the base (100);

the base (100) is connected with the bottom plate (300) through a quick assembly disassembly structure, and the quick assembly disassembly structure comprises: the base plate positioning bolt (302) and the base plate locking device (600), wherein after the base plate positioning bolt (302) is installed, the base plate (300) can rotate around the base plate positioning bolt (302);

the bottom plate locking device (600) comprises a lock head (601) horizontally arranged in the base (100), a lock hole is formed in the position, corresponding to the lock head (601), of the side face of the bottom plate (300), the lock head (601) enters or leaves the lock hole, a bottom plate locking spring (602) is arranged at the rear end of the lock head (601), and the lock head (601) is kept extending out of the base (100) under the natural installation state of the bottom plate locking spring (602).

2. The multi-specification interchangeable nut anti-drop wrench with limited tilting space according to claim 1, wherein the lock (601) has a bottom plate lock fork (603) extending downward in the circumferential direction.

3. The multi-specification interchangeable nut anti-drop wrench with limited tilting space according to claim 1, wherein the top of the sleeve mounting hole (101) is provided with a nut limiting device (700), and the nut limiting device (700) can limit the nut (1001) to be operated from sliding out from the top of the sleeve (200).

4. A multi-specification interchangeable nut anti-drop wrench with limited tilting space according to claim 3, wherein the nut limiting device (700) comprises two baffles (701) which are arranged in a crossing way, the crossing part of the two baffles (701) is connected with the surface of the base (100) through a baffle hinge shaft (702), and nuts (1001) to be operated are blocked or exposed in the crossing angle change process of the two baffles (701).

5. The multi-specification replaceable nut anti-drop wrench with the limited tilting space according to claim 4, wherein a sliding block (703) is hinged between one ends of the baffle plates (701) far away from the sleeve (200), waist-shaped holes extending along the length direction are formed in hinged positions of the baffle plates (701) and the sliding block (703), a sliding shaft (704) is connected to the right side of the sliding block (703), the sliding shaft (704) can slide in a certain range along the horizontal direction, a sliding shaft spring (705) is sleeved at the left end of the sliding shaft (704), and the sliding shaft spring (705) tightly pushes against the sliding block (703) in a natural state.

6. The multi-specification replaceable nut anti-falling wrench with limited tilting space according to claim 5, wherein the right end of the sliding shaft (704) is connected with a steel wire (706), the tail end of the steel wire (706) is connected with a baffle locking device (800), and the baffle locking device (800) is located near the handle (500).

7. The multi-specification replaceable nut anti-drop wrench with limited inclined space according to claim 6, wherein the baffle locking device (800) comprises a steel wire sliding block (801), the left end of the steel wire sliding block (801) is connected with a steel wire (706), the force arm (400) is provided with a sliding block groove (401) for installing and sliding the steel wire sliding block (801), a limiting sleeve rod (802) is arranged on the steel wire sliding block (801) in a penetrating mode from bottom to top, a limiting pin (803) is arranged on the limiting sleeve rod (802) in a sliding mode, a limiting spring (804) is arranged at the bottom of the limiting pin (803), the limiting spring (804) enables the limiting pin (803) to extend out of the surface of the force arm (400) in a natural state but not to be separated from the steel wire sliding block (801), and a locking hole (402) for the limiting pin (803) to be clamped in or separated is formed on the right side of the sliding block groove (401).

8. The multi-specification replaceable nut anti-drop wrench with limited inclined space according to claim 7, wherein the surface of the force arm (400) is provided with a steel wire groove (403) at a position corresponding to the steel wire (706), the steel wire (706) is positioned in the steel wire groove (403), and a steel wire guide wheel (404) for pressing and guiding the steel wire (706) is arranged on the inner side of the bending structure of the force arm (400).