Novel wrench used under limited space condition

Abstract

The utility model discloses a novel spanner used under the limited space condition, and relates to the technical field of spanners, the novel spanner used under the limited space condition comprises a shell, a rotating disc, a first push rod, a second push rod and a movable rod. A first push rod and a second push rod are driven to push a rotating disc to rotate in a rotating inner cavity, finally, a limiting hole drives a nut to rotate, and the purpose of assembling and disassembling the nut is achieved. The conditions that an existing wrench is inconvenient to rotate in a limited space and nut assembling and disassembling are tedious are effectively avoided, meanwhile, the wrench is further suitable for the space where a nut needing to be assembled and disassembled is located in a long and narrow channel, and the problems that the space is limited and rotation is inconvenient in the nut screwing process of the existing wrench in the limited space are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spanner technical field, especially a new type spanner under the condition of space restriction. BACKGROUND

[0002] Spanner is a kind of commonly used installation and disassembly tool, is the hand tool of the open or sleeve hole fastener of bolt, screw, nut and other threaded fastening bolt or nut by lever principle twist., The types of spanner include hand spanner, electric spanner and torque spanner.

[0003] At present, the following technologies are mostly adopted by manufacturers of existing hand spanners;

[0004] Material technology: mostly made of carbon or alloy structural steel, such as chromium vanadium steel and other good quality steel, to ensure the strength and durability of spanner;

[0005] Manufacturing process: including forging, casting, machining, etc. Forging process can make spanner obtain better mechanical properties and precision;Casting is suitable for the production of some complex shape spanners;Mechanical processing can ensure the dimensional accuracy and surface quality of spanner;

[0006] Surface treatment technology: common treatment methods include bright chromium, sub-chromium, electrophoresis, phosphating, gray nickel, etc., which can improve the rust resistance, wear resistance and appearance quality of spanner;

[0007] Lever principle: this is the most basic principle of spanner, by applying external force on the handle, using lever action to twist the bolt or nut in the direction of thread rotation.

[0008] At present, it is very difficult to disassemble and assemble the bolt or nut connected by thread in the limited space with existing hand spanners, for example, when the nut is vertically screwed in the cabinet or narrow gap, the existing spanner is not convenient to rotate, in order to overcome the problem of space limitation in the process of twisting the nut, a suitable spanner must be designed according to the specific situation of the working space, therefore, the utility model provides a spanner used in limited space. UTILITY MODEL CONTENT

[0009] In view of the deficiencies of the prior art, the utility model provides a new type spanner used in limited space, which solves the problem of limited space and inconvenient rotation of existing spanner in the process of twisting the nut in limited space.

[0010] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0011] A new type spanner used in limited space, comprising a shell, a rotating disc, a first push rod, a second push rod and a movable rod.

[0012] Preferably, the inside of the shell is provided with a rotating cavity and a push-pull cavity, and the shell is provided with a first circular hole and a second circular hole on both sides of the rotating cavity, and the edge of the shell away from the rotating cavity in the push-pull cavity is provided with a movable cavity.

[0013] Preferably, the first push rod and the second push rod are arranged in the push-pull cavity, and the ends of the first push rod and the second push rod away from the rotating disc are fixedly connected with a first pin and a second pin, respectively, and the first push rod and the second push rod are rotatably connected with the movable rod through the first pin and the second pin, the middle section of the movable rod connected with the first pin and the second pin is rotatably connected with a third pin, the third pin is fixedly connected to the inner wall of the shell on both sides of the push-pull cavity, and the ends of the first push rod and the second push rod close to the rotating disc are provided with a first push rod head and a second push rod head, respectively.

[0014] Preferably, the first push rod and the second push rod are respectively provided with a first spring fixing hole and a second spring fixing hole, the inner wall of the shell is fixedly connected with a first spring fixing column and a second spring fixing column, the first spring fixing hole and the second spring fixing hole are fixedly connected with a first spring body and a second spring body, respectively, and the ends of the first spring body and the second spring body away from the first spring fixing hole and the second spring fixing hole are fixedly connected with the first spring fixing column and the second spring fixing column, respectively, and the first spring fixing hole and the second spring fixing hole are connected with the first spring fixing column and the second spring fixing column through the first spring body and the second spring body.

[0015] Preferably, the surface of one side of the rotating disc is provided with a circular chute, the rotating cavity is fixedly installed with a stabilizing rod on the inner surface of the side of the rotating disc where the circular chute is provided, the number of the stabilizing rods is multiple and they are circularly symmetrically distributed, the stabilizing rods are embedded into the circular chute and are provided with a sliding block at the embedded end, the sliding block is slidingly arranged in the circular chute, so that the rotating disc can freely rotate through the stabilizing rod and does not fall off, and the edge of the same side of the rotating disc and the circular chute is fixedly installed with a first fixing column, and the number of the first fixing columns is multiple and they are circularly symmetrically distributed.

[0016] Preferably, the rotating disc is provided with a limiting hole, and the limiting hole shares the same center with the rotating disc, the circular chute, the first circular hole and the second circular hole, in the process of left and right swinging of the movable rod in the movable cavity, the movable rod drives the first push rod and the second push rod to make a reciprocating push-pull motion forward and backward, respectively, and due to the restriction of the movable cavity and the first spring body and the second spring body, the first push rod head and the second push rod head are always close to the first fixing column and sequentially and continuously push the first fixing column on the rotating disc, thereby driving the rotating disc in the rotating cavity to operate, and finally causing the limiting hole to drive the nut to rotate.

[0017] Preferably, the end of the movable rod away from the push-pull cavity is fixedly installed with a rubber sleeve.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] One, this application, through setting up a push rod and second push rod, through swing movable link, drive push rod, second push rod push rotary disc operation, finally lead to limit hole drive nut rotation, reach the purpose of loading and unloading nut, utilize swing movable link in the reciprocating motion in the cavity, thereby replace the rotary motion of spanner, effectively avoid the existing spanner in the limited space inconvenient rotation, loading and unloading nut is more complicated, simultaneously still be applicable to the nut that needs to be loaded and unloaded is located in the space of long and narrow passageway, solved the existing spanner in the limited space in the process of screwing nut space limited, inconvenient rotation problem. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail below with the drawings.

[0021] Figure 1 It is the overall overhead structure diagram of the utility model;

[0022] Figure 2 It is the internal structure diagram of the shell of the utility model.

[0023] Legend: 1, shell;2, rotary inner cavity;3, rotary disc;4, limit hole;5, circular chute;6, stabilizing bar;7, first fixed column;8, first push rod head;9, first spring fixing hole;10, first spring body;11, first spring fixing column;12, first push rod;13, push-pull inner cavity;14, second push rod head;15, second spring fixing hole;16, second spring body;17, second spring fixing column;18, second push rod;19, first pin;20, third pin;21, second pin;22, movable cavity;23, movable link;24, rubber sleeve;25, first circular hole;26, second circular hole. DETAILED DESCRIPTION

[0024] The utility model discloses a new type spanner used under the condition of limited space, effectively solve the existing spanner in the process of screwing nut in the limited space space limited, inconvenient rotation problem. EMBODIMENT

[0025] The technical scheme in the embodiment of the application effectively solves the technical problems that the existing spanner is inconvenient to rotate in the process of screwing nut in the limited space, and the general idea is as follows:

[0026] The utility model provides a novel wrench used under the condition of space limitation, which solves the problems in the prior art.

[0027] The shell 1 is internally provided with a rotating inner cavity 2 and a push-pull inner cavity 13, and the shell 1 is provided with a first circular hole 25 and a second circular hole 26 on both sides of the rotating inner cavity 2, and the shell 1 is provided with a movable cavity 22 on the edge of the end of the push-pull inner cavity 13 away from the rotating inner cavity 2.

[0028] The first push rod 12 and the second push rod 18 are both arranged in the push-pull inner cavity 13, and the first push rod 12 and the second push rod 18 are both fixedly connected with a first pin 19 and a second pin 21 at the end away from the rotating disc 3, and the first push rod 12 and the second push rod 18 are both rotatably connected with the movable rod 23 through the first pin 19 and the second pin 21, the movable rod 23 is rotatably connected with a third pin 20 at the middle section connected with the first pin 19 and the second pin 21, the third pin 20 is fixedly connected to the inner wall of the shell 1 on both sides of the push-pull inner cavity 13, and the first push rod 12 and the second push rod 18 are both provided with a first push rod head 8 and a second push rod head 14 at the end close to the rotating disc 3.

[0029] The first push rod 12 and the second push rod 18 are both provided with a first spring fixing hole 9 and a second spring fixing hole 15, the inner wall of the shell 1 is fixedly connected with a first spring fixing column 11 and a second spring fixing column 17, the first spring fixing hole 9 and the second spring fixing hole 15 are both fixedly connected with a first spring body 10 and a second spring body 16, the first spring body 10 and the second spring body 16 are both fixedly connected with the first spring fixing column 11 and the second spring fixing column 17 at the end away from the first spring fixing hole 9 and the second spring fixing hole 15, and the first spring fixing hole 9 and the second spring fixing hole 15 are both connected with the first spring fixing column 11 and the second spring fixing column 17 through the first spring body 10 and the second spring body 16.

[0030] The surface of one side of the rotating disc 3 is provided with a circular sliding groove 5, the rotating inner cavity 2 is fixedly installed with a stabilizing rod 6 on the inner surface of the side of the rotating disc 3 provided with the circular sliding groove 5, the stabilizing rod 6 is in a plurality and is circularly and symmetrically distributed, the stabilizing rod 6 is embedded into the circular sliding groove 5 and is installed with a sliding block at the embedded end, the sliding block is slidingly arranged in the circular sliding groove 5, the rotating disc 3 can be freely rotated through the stabilizing rod 6 and does not fall off, and the rotating disc 3 is fixedly installed with a first fixing column 7 on the edge of the same side of the circular sliding groove 5, the first fixing column 7 is in a plurality and is circularly and symmetrically distributed.

[0031] The limiting hole 4 is arranged on the rotating disc 3, and the limiting hole 4, the rotating disc 3, the circular sliding slot 5, the first circular hole 25 and the second circular hole 26 share the same center. During the left and right swinging of the movable rod 23 in the movable cavity 22, the movable rod 23 drives the first push rod 12 and the second push rod 18 to make a forward and a backward reciprocating push and pull motion respectively. Since the movable cavity 22, the first spring body 10 and the second spring body 16 are limited, the first push rod head 8 and the second push rod head 14 are always close to the first fixed column 7 and continuously push the first fixed column 7 on the rotating disc 3 in turn, so as to drive the rotating disc 3 in the rotating inner cavity 2 to operate, and finally cause the limiting hole 4 to drive the nut to rotate.

[0032] The rubber sleeve 24 is fixedly installed at the end of the movable rod 23 away from the push and pull inner cavity 13.

[0033] Working principle:

[0034] In the first step, the nut is sleeved into the limiting hole 4 through the first circular hole 25. The movable rod 23 is swung in the movable cavity 22 by swinging the rubber sleeve 24 left and right. The movable rod 23 drives the first push rod 12 and the second push rod 18 to make a forward and a backward reciprocating push and pull motion respectively. Since the movable cavity 22, the first spring body 10 and the second spring body 16 are limited, the first push rod head 8 and the second push rod head 14 are always close to the first fixed column 7 and continuously push the first fixed column 7 on the rotating disc 3 in turn, so as to drive the rotating disc 3 in the rotating inner cavity 2 to operate, and finally cause the limiting hole 4 to drive the nut to rotate.

[0035] In the second step, when the nut is sleeved into the limiting hole 4 through the second circular hole 26 for use, the nut can also be rotated in the opposite direction, and finally the nut dismounting and mounting operation is completed.

[0036] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A new type of wrench for use in a space-restricted situation, characterized in that, Including shell (1), rotating disc (3), No. 1 push rod (12), No. 2 push rod (18) and movable rod (23); The inside of the shell (1) is provided with a rotating inner cavity (2) and a push-pull inner cavity (13), and the shell (1) is provided with a No. 1 round hole (25) and a No. 2 round hole (26) on both sides of the rotating inner cavity (2).

2. A new type of spanner for use in space-restricted situations as claimed in claim 1, characterized in that: The shell (1) is provided with a movable cavity (22) on the edge of the end of the push-pull inner cavity (13) away from the rotating inner cavity (2).

3. A new type of spanner for use in space-restricted situations as claimed in claim 2, characterized in that: The No. 1 push rod (12) and the No. 2 push rod (18) are arranged in the push-pull inner cavity (13), and the No. 1 push rod (12) and the No. 2 push rod (18) are fixedly connected with a No. 1 pin (19) and a No. 2 pin (21) at the end away from the rotating disc (3), the No. 1 push rod (12) and the No. 2 push rod (18) are rotatably connected with the movable rod (23) through the No. 1 pin (19) and the No. 2 pin (21), the middle section of the movable rod (23) connected with the No. 1 pin (19) and the No. 2 pin (21) is rotatably connected with a No. 3 pin (20), and the No. 3 pin (20) is fixedly connected to the inner wall of the shell (1) on both sides of the push-pull inner cavity (13), the No. 1 push rod (12) and the No. 2 push rod (18) are provided with a first push rod head (8) and a second push rod head (14) at the end close to the rotating disc (3).

4. A new type of spanner for use in space-restricted situations as claimed in claim 3, characterized in that: The No. 1 push rod (12) and the No. 2 push rod (18) are respectively provided with a No. 1 spring fixing hole (9) and a No. 2 spring fixing hole (15), the inner wall of the shell (1) is fixedly connected with a No. 1 spring fixing column (11) and a No. 2 spring fixing column (17), the No. 1 spring fixing hole (9) and the No. 2 spring fixing hole (15) are fixedly connected with a No. 1 spring body (10) and a No. 2 spring body (16), and the ends of the No. 1 spring body (10) and the No. 2 spring body (16) away from the No. 1 spring fixing hole (9) and the No. 2 spring fixing hole (15) are fixedly connected with the No. 1 spring fixing column (11) and the No. 2 spring fixing column (17).

5. A new type of spanner for use in space-restricted situations as claimed in claim 4, characterized in that: The surface of one side of the rotating disc (3) is provided with a circular chute (5), the inner surface of the rotating inner cavity (2) on the side of the rotating disc (3) provided with the circular chute (5) is fixedly installed with a stabilizing rod (6), the stabilizing rod (6) is embedded into the circular chute (5) and is provided with a sliding block at the embedded end, the sliding block is slidingly arranged in the circular chute (5), and the edge of the same side of the rotating disc (3) and the circular chute (5) is fixedly installed with a first fixing column (7).

6. A new type of spanner for use in space-restricted situations as claimed in claim 5, characterized in that: The rotating disc (3) is provided with a limiting hole (4), and the limiting hole (4) shares the same center with the rotating disc (3), the circular chute (5), the No. 1 round hole (25) and the No. 2 round hole (26).

7. A new type of spanner for use in space-restricted situations as claimed in claim 6, characterized in that: The end of the movable rod (23) away from the push-pull inner cavity (13) is fixedly installed with a rubber sleeve (24).

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