CN114871982A

CN114871982A - Many specifications of restricted slope space interchangeable formula nut anti-drop spanner

Info

Publication number: CN114871982A
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: 2022-08-09
Anticipated expiration: 2042-06-20
Also published as: CN114871982B

Abstract

The invention discloses a multi-specification replaceable nut anti-drop wrench with a limited inclined space, which comprises: the base, the base has the sleeve mounting hole that plane direction runs through perpendicularly, the sleeve is installed to detachable from making progress in the sleeve mounting hole, the sleeve is used for bearing and treats the operating nut, the bottom plate is installed to the base bottom, the bottom plate middle part has the bottom plate centre bore that supplies to treat operating screw and stretch out, bottom plate restriction sleeve downstream, 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 form bending structure in vertical direction, makes the handle be higher than or be less than the height of base, when solving among the prior art to restricted slope space and need explosion-proof, antimagnetic operating mode to assemble the operation, the nut drops easily and the inconvenient technical problem of operation.

Description

Many specifications of restricted slope space interchangeable formula nut anti-drop spanner

Technical Field

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

Background

In the production process of product, often need to link together two kinds of work pieces adopt fasteners such as bolt and nut, because the structure reason of some work pieces, the junction space is limited and there is an inclination, often sets up the nut in limited inclination space under this condition, and the instrument that only can use the slope just can install the dismantlement nut, and can't take the nut tightly with the hand. A 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 firstly placed into the socket wrench, and then the wrench is carefully stretched into the limited space of the workpiece by the wing. The method has the advantages that 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 fallen nut can be taken out only by dismounting each part, the whole progress is seriously influenced, and meanwhile, other parts are possibly damaged to cause serious quality hidden trouble. If the nuts with several specifications need to be manufactured with wrenches with different specifications, the cost is higher and the nuts are not easy to store.

20180410 discloses a utility model with application number CN 201721052106.1: a special bolt dismounting device in narrow space, inventor: li is also glossy. According to the claims, the utility model 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. Therefore, the utility model does not solve the anti-drop problem of the nut.

20180605 discloses a utility model with application number CN 201721513642.7: inclined space bolt dismantles specialized tool, the inventor: beam bin, yuangang, etc. According to the claims, characterized in that: the electric wrench is characterized by comprising 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 end of the electric wrench. Therefore, the utility model discloses do not solve the anti-drop problem of nut equally from this, this utility model adopts electric tool simultaneously, does not show in the description to have explosion-proof function, and the discomfort should have the environment of explosion-proof requirement.

20200331 discloses an invention patent with application number CN 201911238558.2: a appurtenance and device that is used for fastening and dismantles the screw in the confined space, inventor Liu Xinyu, Li Xin, jiapengyue etc.. According to the abstract, the clamping device 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 invention mainly solves the technical problem that a screw or a printing plate is easy to damage when a screwing machine unloads the screw in a limited space. The problem of falling off when the nut in the limited space is mounted or dismounted is not solved at all.

20200821 discloses a utility model with application number CN 201921989943.6: confined space bolt-on device, inventor: zhang Haiyan, Wangbo, Liuzhang, Zhengzheng Zhiming, Zhang Guijun, Lvrong Jun. 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 the ratchet wrench, and the other end of the transmission chain is connected with the sleeve; the sleeve end is also provided with an LED lamp and a Bluetooth camera. According to this utility model's of description LED lamp does not possess explosion-proof function, simultaneously according to the description, this utility model anticreep adopts magnetism to inhale the device, and the product probably remains the residual magnetism after using, and is not suitable for to nonmagnetic material nuts such as stainless steel or titanium alloy.

20220107 discloses an invention patent with application number CN 202111314916.0: limited space nut anti-drop installation spanner, the inventor: liu He Rong, ren Zi Shu, Long Yun Jiang, Van Wei and Yuxu Dong. The novel nut dismounting tool is characterized by comprising a base, a force arm, a handle, a ratchet wheel assembly and a baffle plate assembly 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 assembly is arranged in the lower cavity, the baffle plate assembly is arranged in the upper cavity, and 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.

Therefore, it is a constant problem for those skilled in the art to develop a wrench which can prevent the nut from falling and operate the limited space when the limited inclined space of the assembling operation is limited under the requirement of explosion-proof and magnetism-proof.

Disclosure of Invention

The invention aims to provide a multi-specification replaceable nut anti-falling wrench with a limited inclined space, and solves the technical problems that in the prior art, when the limited inclined space and an explosion-proof and antimagnetic working condition are required to be assembled, a nut is easy to fall off and inconvenient to operate.

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

a multi-specification replaceable nut anti-falling wrench with a limited inclined space comprises: the base, the base has the sleeve mounting hole that plane direction runs through perpendicularly, the sleeve is installed to detachable from making progress in the sleeve mounting hole, the sleeve is used for bearing and treats the operating nut, the bottom plate is installed to the base bottom, the bottom plate middle part has the bottom plate centre bore that supplies to treat that the operating screw stretches out, bottom plate restriction sleeve downstream, 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 form bending structure in vertical direction, makes the handle be higher than or be less than the height of base.

According to the anti-falling spanner with the changeable nuts in the limited inclined space, the base and the bottom plate are connected through the quick assembly and disassembly structure, and the quick assembly and disassembly structure comprises: the bottom plate locking device comprises a bottom plate positioning bolt and a bottom plate locking device, wherein after the bottom plate positioning bolt is installed, the bottom plate can rotate around the bottom plate positioning bolt.

The invention 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 surface of the 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 enabled to keep extending out of the base under the natural installation state of the bottom plate locking spring.

According to the anti-falling spanner for the replaceable nut in the limited inclined space, the lock head is circumferentially provided with the downward extending bottom plate lock head shifting fork.

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 a nut to be operated to slide out of the top of the sleeve.

According to the anti-falling spanner for the replaceable nut in the limited inclined space, the nut limiting device comprises two baffle plates which are arranged in a crossed mode, the crossed position of the two baffle plates is connected with the surface of the base through the baffle plate hinge shaft, and the nut to be operated is blocked or exposed in the process of changing the crossed angle of the two baffle plates.

According to the multi-specification replaceable nut anti-falling wrench with the limited inclined space, the sliding block is hinged between the ends, far away from the sleeve, of the baffle, the hinged positions of the baffle and the sliding block are provided with the 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 in a certain range along the horizontal direction, the left end of the sliding shaft is sleeved with the sliding shaft spring, and the sliding block is tightly pressed by the sliding shaft spring in a natural state.

According to the anti-falling spanner with the replaceable nut in 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 invention relates to a multi-specification replaceable nut anti-falling wrench with a limited inclined space, wherein a baffle locking device comprises a steel wire slide block, the left end of the steel wire slide block is connected with a steel wire, the force arm is provided with a slide block groove for the steel wire slide block to be installed and slide, a limiting sleeve rod is arranged in the steel wire slide block in a penetrating mode from bottom to top, a limiting pin is installed in the limiting sleeve rod in a sliding mode, the bottom of the limiting pin is provided with a limiting spring, the limiting spring enables the limiting pin to extend out of the surface of the force arm but not to be separated from the steel wire slide block in a natural state, and the right side of the slide block groove is provided with a locking hole for the limiting pin to be clamped in or separated from.

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

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

Drawings

The invention 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 invention;

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

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

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

FIG. 5 is a partial illustration of a moment arm of an embodiment of the present invention;

FIG. 6 is a partial schematic view of a base of an embodiment of the invention;

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

fig. 8 is a partial schematic view of a blind locking device according to an embodiment of the present invention.

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. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 to 8, a multi-specification replaceable nut anti-falling wrench with a limited inclined space comprises: the base 100, the base 100 has the perpendicular sleeve mounting hole 101 that runs through of plane direction, the detachable sleeve 200 of installing from bottom to top in the sleeve mounting hole 101, the sleeve 200 is used for bearing and treats the operation nut 1001, bottom plate 300 is installed to base 100 bottom, bottom plate 300 middle part has the bottom plate centre bore 301 that supplies to treat that operation screw 1000 stretches 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 S form bending structure in vertical direction, makes handle 500 be higher than or be less than the height of base 100, is the spline cooperation between sleeve 200 and the sleeve mounting hole 101 usually to sleeve 200 installs from bottom to top, sleeve mounting hole 101 is the step hole, and restriction sleeve 200 is worn out from the top.

In a preferred embodiment of the present invention, the base 100 and the bottom plate 300 are connected by a quick-release structure, which includes: bottom plate positioning bolt 302 and bottom plate locking device 600, bottom plate positioning bolt 302 installation back, bottom plate 300 can rotate around bottom plate positioning bolt 302, when changing different specification sleeves 200, only need loosen bottom plate locking device 600, and bottom plate 300 can rotate to one side, exposes sleeve mounting hole 101 like this and carries out sleeve 200 and change the back, turns back bottom plate 300 and blocks sleeve 200 to locking bottom plate locking device 600 has realized the assembly and the fixing of bottom plate 300 promptly.

In a preferred embodiment of the present invention, the bottom plate locking device 600 comprises a locking head 601 horizontally disposed in the base 100, a locking hole is disposed on a side surface of the bottom plate 300 corresponding to the locking head 601, the locking head 601 enters or leaves the locking hole, a bottom plate locking spring 602 is disposed at a rear end of the locking head 601, the locking head 601 keeps extending out of the base 100 in a natural installation state of the bottom plate locking spring 602, a bottom plate locking head fork 603 extending downward is disposed in a circumferential direction of the locking head 601, the locking head 601 keeps extending out under the action of the bottom plate locking spring 602 in a normal state, and cooperates with the locking hole of the locking head 601 to keep in a locked state, when the bottom plate 300 needs to be opened, the bottom plate locking head fork 603 is pulled rightwards by a hand, so that the locking head 601 is separated from the locking hole of the bottom plate 300, the bottom plate 300 can rotate around the bottom plate positioning bolt 302, the sleeve mounting hole 101 is exposed, and when the operation is completed, the bottom plate locking head 603 is pulled rightwards by a hand again, the locking is achieved by rotating the base plate 300 back and releasing the base plate lock fork 603 to allow the lock 601 to enter the lock hole of the base plate 300.

In a preferred embodiment of the present invention, 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 to slide 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 cannot be blocked, and the inner hole of the sleeve 200 can be completely exposed when the nut 1001 to be operated needs to be installed or removed.

In a preferred embodiment of the present invention, the nut limiting device 700 includes two intersecting baffles 701, the intersection of the two baffles 701 is connected to the surface of the base 100 through a baffle hinge shaft 702, the nut 1001 to be operated is blocked or exposed during the process of changing the intersecting angle of the two baffles 701, and the two baffles 701 usually block the wall thickness position of the nut 1001 to be operated, so as to prevent the nut from falling without affecting the dismounting operation.

In a preferred embodiment of the present invention, a sliding block 703 is hinged between one end of the baffle 701, which is far away from the sleeve 200, a waist-shaped hole extending along the length direction is formed at the hinged position 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 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 naturally abuts against the sliding block 703, so that the sliding block 703 is pushed to operate in the process of horizontal movement of the sliding shaft 704, the sliding block 703 and the baffle 701 are hinged through the waist-shaped hole, so that the horizontal movement of the sliding block 703 is converted into scissor-like 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 arranged at a position corresponding to the sleeve mounting hole 101 of the cover plate 900.

In a preferred embodiment of the present invention, a steel wire 706 is connected to the right end of the sliding shaft 704, a baffle locking device 800 is connected to the tail end of the steel wire 706, and 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 by using the handle 500.

In a preferred embodiment of the present invention, the baffle locking device 800 includes a steel wire slider 801, the left end of the steel wire slider 801 is connected to a steel wire 706, the force arm 400 has a slider slot 401 for the steel wire slider 801 to mount and slide, the steel wire slider 801 is provided with a limiting loop bar 802 from bottom to top, a limiting pin 803 is slidably mounted in the limiting loop bar 802, the bottom of the limiting pin 803 is provided with a limiting spring 804, the limiting spring 804 in a natural state enables the limiting pin 803 to extend out of the surface of the force arm 400 but not to be separated from the steel wire slider 801, the right side of the slider slot 401 is provided with a locking hole 402 for the limiting pin 803 to be inserted or separated, the steel wire slider 801 normally aligns to the left under the action of a sliding shaft spring 705, at this time, the two baffles 701 in an open state can freely pick and place the nut 1001 to be operated, after picking and placing, the bottom of the limiting loop bar 802 generally extends out of the force arm 400, therefore, the operation is convenient, the limiting sleeve rod 802 is pulled rightwards by a hand, after the limiting sleeve rod reaches a certain position, the limiting pin 803 is pressed to continue to slide rightwards, until the limiting pin reaches the locking hole 402, the limiting pin 803 moves upwards under the action of the limiting spring 804 and is clamped into the locking hole 402, the crossing angle of the two baffles 701 is reduced, the nut 1001 to be operated is axially blocked, the baffle 701 is prevented from falling out, when the baffles 701 are required to be loosened, the limiting sleeve rod 802 moves leftwards by pressing the limiting pin 803, the crossing angle of the two baffles 701 is increased, and the nut 1001 to be operated is exposed.

In a preferred embodiment of the present invention, a steel wire groove 403 is formed on the surface of the force arm 400 corresponding to the position of the steel wire 706, the steel wire 706 is located in the steel wire groove 403, and a steel wire guide wheel 404 for pressing and guiding the steel wire 706 is arranged inside the curved structure of the force arm 400.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a many specifications of restricted inclination space interchangeable nut anti-drop spanner which characterized in that includes: base (100), base (100) have the perpendicular sleeve mounting hole (101) that runs through of plane direction, sleeve (200) are installed to detachable from bottom to top in sleeve mounting hole (101), sleeve (200) are used for bearing and treat operating nut (1001), bottom plate (300) are installed to base (100) bottom, bottom plate (300) middle part has the bottom plate centre bore (301) that the confession was treated operating screw (1000) and is stretched out, bottom plate (300) restriction sleeve (200) move down, base (100) one side has the arm of force (400) that extend along the outside, arm of force (400) tip has handle (500), arm of force (400) are S form bending structure in vertical direction, make handle (500) be higher than or be less than the height of base (100).

2. The anti-drop wrench for changeable nuts with limited inclined space according to claim 1, wherein the base (100) is connected to the bottom plate (300) by a quick-release structure, the quick-release structure comprising: the locking device comprises a base plate positioning bolt (302) and a 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).

3. The anti-drop wrench for the changeable nut with the multiple specifications and the limited inclined space as claimed in claim 2, wherein the bottom plate locking device (600) comprises a locking head (601) horizontally arranged in the base (100), a locking hole is formed in a position, corresponding to the locking head (601), of a side surface of the bottom plate (300), the locking head (601) enters or leaves the locking hole, a bottom plate locking spring (602) is arranged at a rear end of the locking head (601), and the locking head (601) is kept to extend out of the base (100) in a natural installation state of the bottom plate locking spring (602).

4. The anti-drop wrench for changeable nuts with limited inclined space according to claim 3, wherein the lock head (601) has a bottom plate lock head fork (603) extending downward in the circumferential direction.

5. The limited inclined space multi-specification replaceable nut anti-falling wrench as claimed in 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 of the top of the sleeve (200).

6. The anti-drop wrench for the replaceable nut with the limited inclined space and the multiple specifications as claimed in claim 5, wherein the nut limiting device (700) comprises two crossed baffles (701), the crossed part of the two baffles (701) is connected with the surface of the base (100) through a baffle hinge shaft (702), and the nut (1001) to be operated is blocked or exposed during the change of the crossed angle of the two baffles (701).

7. The anti-falling spanner for the replaceable nut with the limited inclined space and the multiple specifications as recited in claim 6, wherein a sliding block (703) is hinged between one ends of the baffle (701) far away from the sleeve (200), waist-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 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 block (703) is tightly pressed by the sliding shaft spring (705) in a natural state.

8. The anti-falling wrench of the changeable nut with the limited inclined space and the multiple specifications as claimed in claim 7, wherein a steel wire (706) is connected to the right end of the sliding shaft (704), a baffle locking device (800) is connected to the end of the steel wire (706), and the baffle locking device (800) is located near the handle (500).

9. The anti-falling wrench of the replaceable nut in the multi-specification limited inclined space as claimed in claim 8, wherein the baffle locking device (800) comprises a steel wire slider (801), the left end of the steel wire slider (801) is connected with a steel wire (706), the force arm (400) is provided with a slider groove (401) for the steel wire slider (801) to be installed and slide, a limiting sleeve rod (802) penetrates through the steel wire slider (801) from bottom to top, a limiting pin (803) is slidably installed in the limiting sleeve rod (802), 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) but not to be separated from the steel wire slider (801) in a natural state, and a locking hole (402) for the limiting pin (803) to be clamped or separated is arranged at the right side of the slider groove (401).

10. The anti-falling wrench of the changeable nut with the limited inclined space and the multiple specifications as claimed in claim 9, wherein a steel wire groove (403) is formed on the surface of the force arm (400) at a position corresponding to the steel wire (706), the steel wire (706) is located 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).