CN219967786U - Pneumatic wrench capable of quickly replacing dies - Google Patents

Abstract

The utility model discloses a pneumatic wrench capable of quickly changing dies, which comprises a wrench, a moving plate, a positioning plate, a fixed rod and a clamping plate, wherein the outer surface of the wrench is connected with the moving plate, the positioning plate is arranged on the outer surface of the wrench, the fixed rod is connected between the wrench and the positioning plate, and a sliding block is connected inside a guide pipe. This pneumatic spanner of quick retooling when needs screw, then can slide to one end through the movable plate to make the surface of movable plate contact with the surface of two splint, under the promotion of movable plate, two splint also slide along with inclination thereupon, have pulled open the interval between two splint, and two splint centre gripping have well the screw, and the movable plate slides to the other end, and two splint also slide along with under the elastic force, thereby have pressed from both sides the screw of clamping and have prevented dropping, and at two splint with the one end of screw cover at spanner that the centre gripping is good, thereby realize quick installation screw.

Description

Pneumatic wrench capable of quickly replacing dies

Technical Field

The utility model relates to the technical field of pneumatic wrench development, in particular to a pneumatic wrench capable of quickly replacing dies.

Background

Pneumatic wrenches are torque wrenches using high pressure air pumps as a source of power, which are torque multipliers with three or more epicyclic gears driven by one or two powerful pneumatic motors, and are widely used in many industries, such as automotive repair, heavy equipment maintenance, product assembly, major construction projects, installation of wire screws, and other high torque output requirements anywhere;

however, in the prior art, when the screw cannot be quickly unscrewed due to rust caused by long-term use, some lubricating oil needs to be additionally coated, the working time is long from the process of finding the lubricating oil to the process of coating the lubricating oil, and before the screw needs to be screwed, the screw needs to be manually installed at one end of a wrench and then is worked, so that the physical strength of staff is consumed;

therefore, it is necessary to design a pneumatic wrench which can be quickly mounted with screws and can be directly coated with lubricating oil.

Disclosure of Invention

The utility model aims to provide a pneumatic wrench capable of quickly replacing a die, which solves the problems that screws cannot be quickly installed and lubricating oil cannot be directly coated in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pneumatic wrench of quick die change, includes spanner, movable plate, locating plate, dead lever and splint, the surface connection of spanner has the movable plate, the surface mounting of spanner has the locating plate, be connected with the dead lever between spanner and the locating plate, the surface connection of spanner has two splint from top to bottom, the equal fixed mounting in upper and lower both ends of movable plate has the extension pole, and the extension pole of movable plate lower extreme is connected with the slide bar, the lower extreme of slide bar is connected with the tooth piece, the surface fixed mounting of spanner one end has the protection ring, the upper end of protection ring is connected with the gear, and the lower extreme fixedly connected with of gear gives way the pole, the one end fixed mounting of spanner has the discharging pipe, the surface fixed mounting of spanner has the oil storage tank, be connected with the stand pipe between oil storage tank and the discharging pipe, the internal connection of oil storage tank has the piston, the internal connection of stand pipe has the slider.

Preferably, the movable plate is slidably connected with the wrench, a spring is connected between the movable plate and the wrench, and one end of the wrench penetrates through the outer surface of the movable plate.

By adopting the technical scheme, when the movable plate slides to one end, the spring between the movable plate and the wrench is stretched.

Preferably, the outer surface of the locating plate is penetrated by one end of the wrench, and two ends of the fixing rod are fixedly connected with the wrench and the locating plate respectively.

By adopting the technical scheme, the locating plate can be prevented from shifting by fixing the locating plate through the fixing rod.

Preferably, the clamping plate is in sliding connection with the wrench, one end of the clamping plate penetrates through the outer surface of the positioning plate, a spring is connected between the clamping plate and the positioning plate, and a part of the clamping plate penetrating through the positioning plate is of an inclined design.

By adopting the technical scheme, when the clamping plates slide, the springs connected with the positioning plates are stretched, and the two clamping plates slide continuously along with the inclination angle, so that the distance between the two clamping plates is increased.

Preferably, a spring is connected between the extension rod and the wrench, and the extension rod at the lower end of the moving plate is fixedly connected with the sliding rod.

By adopting the technical scheme, when the extension rod moves along with the moving plate, the spring connected between the extension rod and the wrench is stretched, and meanwhile, the sliding rod is driven to slide.

Preferably, the tooth block is fixedly connected with the sliding rod, the gear is rotationally connected with the protection ring, and the gear is meshed with the tooth block.

By adopting the technical scheme, when the gear rotates, the sliding rod can slide along with the rotation of the gear.

Preferably, the piston is in sliding friction connection with the oil storage tank, one end of the piston penetrates through one end of the oil storage tank, the sliding block is in sliding connection with the guide pipe, and two ends of the guide pipe penetrate through the discharging pipe and one end of the oil storage tank respectively.

By adopting the technical scheme, when lubricating oil is required to be used, the piston is required to be pushed to extrude the lubricating oil in the oil storage tank to the discharging pipe through the guide pipe, and meanwhile, the sliding block is separated from the clamping of the guide pipe under the pushing of the piston, so that the lubricating oil is convenient to flow out.

Compared with the prior art, the utility model has the beneficial effects that: this quick die change's pneumatic spanner:

1. when the screw is required to be screwed, the moving plate can slide towards one end, the spring between the moving plate and the wrench is stretched, the outer surface of the moving plate is contacted with the outer surfaces of the two clamping plates, the two clamping plates also slide along with the inclination angle under the pushing of the moving plate, the distance between the two clamping plates is pulled, the spring connected with the positioning plate is stretched, after the outer surface of the moving plate is attached to the outer surface of the positioning plate, the two clamping plates clamp the screw, the moving plate slides towards the other end, the two clamping plates also slide along with the inclination angle under the action of the elasticity, the distance between the two clamping plates is reduced, the clamped screw is clamped to prevent falling, and the clamped screw is directly sleeved at one end of the wrench while the two clamping plates slide, so that the purpose of quickly mounting the screw for die changing is realized;

2. when the screw can not be quickly unscrewed to coat some lubricating oil because of rust caused by long-term use, the piston is required to be pushed to enable the lubricating oil in the oil storage tank to be extruded to the discharging pipe through the guide pipe, meanwhile, the sliding block is pushed by the piston to slide towards one end under pressure, and the spring connected between the sliding block and the guide pipe is compressed, so that the sliding block is separated from the clamping of the guide pipe, the lubricating oil is convenient to flow out, the lubricating oil can be coated more quickly, and the consumed working time is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model in a front cross-section;

FIG. 2 is a schematic diagram of a cross-sectional structure of a gear and yielding lever connection of the present utility model;

FIG. 3 is a schematic cross-sectional view of the connection side of the clamping plate and the extension rod of the present utility model;

FIG. 4 is a schematic diagram of a cross-sectional structure of a connecting side of a guide tube and a sliding block of the utility model;

fig. 5 is a schematic view of the structure of the present utility model in a cut-away view.

In the figure: 1. a wrench; 2. a moving plate; 3. a positioning plate; 4. a fixed rod; 5. a clamping plate; 6. an extension rod; 7. a slide bar; 8. tooth blocks; 9. a protective ring; 10. a gear; 11. a yielding rod; 12. a discharge pipe; 13. an oil storage tank; 14. a guide tube; 15. a piston; 16. a sliding block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-5, the present utility model provides a technical solution: the pneumatic wrench comprises a wrench 1, a movable plate 2, a positioning plate 3, a fixed rod 4, a clamping plate 5, an extension rod 6, a sliding rod 7, a tooth block 8, a protection ring 9, a gear 10, a yielding rod 11, a discharging pipe 12, an oil storage tank 13, a guide pipe 14, a piston 15 and a sliding block 16, wherein the outer surface of the wrench 1 is connected with the movable plate 2, the positioning plate 3 is arranged on the outer surface of the wrench 1, the fixed rod 4 is connected between the wrench 1 and the positioning plate 3, the upper clamping plate 5 and the lower clamping plate 5 are connected on the outer surface of the wrench 1, the extension rod 6 at the lower end of the movable plate 2 is fixedly provided with the extension rod 6, the sliding rod 7 is connected with the tooth block 8 at the lower end of the sliding rod 7, the outer surface of one end of the wrench 1 is fixedly provided with the protection ring 9, the upper end of the protection ring 9 is connected with the gear 10, the lower end of the gear 10 is fixedly connected with the yielding rod 11, the spring is connected between the yielding rod 11 and the protection ring 9, the movable plate 2 is in sliding connection with the wrench 1, the spring is connected between the movable plate 2 and the wrench 1, one end of the wrench 1 penetrates through the outer surface of the movable plate 2, the outer surface of the positioning plate 3 is penetrated through by one end of the wrench 1, two ends of the fixed rod 4 are respectively fixedly connected with the wrench 1 and the positioning plate 3, the clamping plate 5 is in sliding connection with the wrench 1, one end of the clamping plate 5 penetrates through the outer surface of the positioning plate 3, the spring is connected between the clamping plate 5 and the positioning plate 3, one end of the clamping plate 5 penetrates through the positioning plate 3 in an inclined design, the spring is connected between the extension rod 6 and the wrench 1, the extension rod 6 at the lower end of the movable plate 2 is fixedly connected with the sliding rod 7, the tooth block 8 is fixedly connected with the sliding rod 7, the gear 10 is rotationally connected with the protection ring 9, the gear 10 is meshed with the tooth block 8, when screwing is needed, the gear 10 drives the tooth block 8 to move to one end by rotating the yielding rod 11 and stretching the spring between the yielding rod 11 and the protecting ring 9, meanwhile, the sliding rod 7 drives the moving plate 2 to slide to one end by the extension rod 6, and stretches the spring between the moving plate 2 and the wrench 1, the outer surface of the moving plate 2 contacts with the outer surfaces of the two clamping plates 5 while the moving plate 2 slides, the two clamping plates 5 slide along with the inclination angle under the pushing of the moving plate 2, the distance between the two clamping plates 5 is pulled, the spring connected with the locating plate 3 is stretched, when the outer surface of the moving plate 2 is attached to the outer surface of the locating plate 3, and the two clamping plates 5 clamp the screw, the yielding rod 11 is loosened, the yielding rod 11 is driven to rotate under the elastic force, so that the gear 10 drives the tooth block 8 to move to the other end, meanwhile, the sliding rod 7 drives the moving plate 2 to slide towards the other end through the extension rod 6, the two clamping plates 5 also slide along with the inclination angle under the action of the elastic force, the distance between the two clamping plates 5 is reduced, the clamped screws are clamped to prevent falling, and the clamped screws are directly sleeved at one end of the wrench 1 while the two clamping plates 5 slide, so that the screws are quickly installed, when the screws need to be disassembled, the wrench 1 firstly removes the screws, then the yielding rod 11 can be rotated again, the sliding rod 7 also moves towards one end along with the tooth block 8 through the gear 10, the extension rod 6 also drives the moving plate 2 to slide towards one end along with the inclination angle, the two clamping plates 5 also slide along with the inclination angle, the disassembled screws are clamped and then put into the required storage box, manual picking is not needed in the later stage, the working time is saved, labor is saved;

the wrench 1 is fixedly provided with a discharging pipe 12 at one end, an oil storage tank 13 is fixedly arranged on the outer surface of the wrench 1, a guide pipe 14 is connected between the oil storage tank 13 and the discharging pipe 12, a piston 15 is connected to the inner part of the oil storage tank 13, a sliding block 16 is connected to the inner part of the guide pipe 14, a spring is connected between the sliding block 16 and the guide pipe 14, the piston 15 is in sliding friction connection with the oil storage tank 13, one end of the piston 15 penetrates through one end of the oil storage tank 13, the sliding block 16 is in sliding connection with the guide pipe 14, two ends of the guide pipe 14 penetrate through one end of the discharging pipe 12 and one end of the oil storage tank 13 respectively, when screws cannot be quickly unscrewed due to rust caused by long-term use, the piston 15 needs to be pushed to enable lubricating oil in the oil storage tank 13 to be extruded to the discharging pipe 12 through the guide pipe 14, and simultaneously the sliding block 16 is pushed by the piston 15, and the spring connected between the sliding block 16 and the guide pipe 14 is compressed, the sliding block 16 is separated from the clamping of the guide pipe 14, the lubricating oil is convenient to flow out, and therefore the lubricating oil can be coated more quickly, when the screws can be easily stopped, the screws can stop the screwing down the sliding block 16 and the piston 16 can be extruded under the action of the guide pipe 16, and the elastic force of the piston 16 is reduced, and the elasticity of the piston 16 can be reduced, and the elasticity can be reduced.

Working principle: when the pneumatic wrench with the quick die change is used, when a screw is required to be screwed, the gear 10 drives the tooth block 8 to move towards one end by rotating the yielding rod 11 and stretching a spring between the yielding rod 11 and the protecting ring 9, meanwhile, the sliding rod 7 drives the moving plate 2 to slide towards one end by the extending rod 6 and stretches the spring between the moving plate 2 and the wrench 1, the outer surface of the moving plate 2 is contacted with the outer surfaces of the two clamping plates 5 while the moving plate 2 slides, the two clamping plates 5 slide along with the inclined angle under the pushing of the moving plate 2, the distance between the two clamping plates 5 is also stretched, the spring connected with the locating plate 3 is stretched, when the outer surface of the moving plate 2 is attached to the outer surface of the locating plate 3 and the two clamping plates 5 clamp the screw, the yielding rod 11 is loosened, the gear 10 drives the tooth block 8 to move towards the other end under the action of elasticity, and meanwhile, the sliding rod 7 drives the moving plate 2 to slide towards the other end by the extending rod 6 and the two clamping plates 5 slide along with the elastic force, the two clamping plates 5 slide along with the inclined angle, and the screw is clamped between the two clamping plates 5 is clamped at the two clamping plates 1, and the screw is clamped between the two clamping plates is clamped at one end, and the screw is clamped between the two clamping plates is prevented, and the screw is clamped between the screw is clamped well, and the screw is clamped at the end fast; when the screw cannot be quickly unscrewed due to rust caused by long-term use and needs to be coated with some lubricating oil, the piston 15 needs to be pushed to enable the lubricating oil in the oil storage tank 13 to be extruded to the discharging pipe 12 through the guide pipe 14, meanwhile, the sliding block 16 is pushed by the piston 15 to slide towards one end under pressure, and the spring connected between the sliding block 16 and the guide pipe 14 is compressed, so that the sliding block 16 is separated from the clamping with the guide pipe 14, the lubricating oil is conveniently discharged, the lubricating oil can be coated more quickly, the consumed working time is reduced, and the overall practicability is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a pneumatic wrench of quick retooling, includes spanner (1), movable plate (2), locating plate (3), dead lever (4) and splint (5), its characterized in that: the outer surface of spanner (1) is connected with movable plate (2), the surface mounting of spanner (1) has locating plate (3), be connected with dead lever (4) between spanner (1) and locating plate (3), the surface connection of spanner (1) has two splint (5) from top to bottom, the upper and lower both ends of movable plate (2) are all fixed mounting have extension pole (6), and extension pole (6) of movable plate (2) lower extreme are connected with slide bar (7), the lower extreme of slide bar (7) is connected with tooth piece (8), the surface fixed mounting of spanner (1) one end has guard ring (9), the upper end of guard ring (9) is connected with gear (10), and the lower extreme fixedly connected with of gear (10) is located pole (11), and is connected with the spring between the guard ring (9) of letting down pole (11), the one end fixed mounting of spanner (1) has extension pipe (12), the surface fixed mounting of spanner (1) has oil storage tank (13), the extension pole (12) is connected with inside piston (14) between oil storage tank (13) and guide tube (14), and a spring is connected between the slide block (16) and the guide tube (14).

2. A quick change pneumatic wrench as claimed in claim 1, wherein: the movable plate (2) is in sliding connection with the wrench (1), a spring is connected between the movable plate (2) and the wrench (1), and one end of the wrench (1) penetrates through the outer surface of the movable plate (2).

3. A quick change pneumatic wrench as claimed in claim 1, wherein: the outer surface of the locating plate (3) is penetrated by one end of the wrench (1), and two ends of the fixing rod (4) are fixedly connected with the wrench (1) and the locating plate (3) respectively.

4. A quick change pneumatic wrench as claimed in claim 1, wherein: the clamping plate (5) is in sliding connection with the wrench (1), one end of the clamping plate (5) penetrates through the outer surface of the locating plate (3), a spring is connected between the clamping plate (5) and the locating plate (3), and one end of the clamping plate (5) penetrating through the locating plate (3) is of an inclined design.

5. A quick change pneumatic wrench as claimed in claim 1, wherein: a spring is connected between the extension rod (6) and the wrench (1), and the extension rod (6) at the lower end of the moving plate (2) is fixedly connected with the sliding rod (7).

6. A quick change pneumatic wrench as claimed in claim 1, wherein: the tooth block (8) is fixedly connected with the sliding rod (7), the gear (10) is rotationally connected with the protection ring (9), and the gear (10) is meshed with the tooth block (8).

7. A quick change pneumatic wrench as claimed in claim 1, wherein: the piston (15) is in sliding friction connection with the oil storage tank (13), one end of the piston (15) penetrates through one end of the oil storage tank (13), the sliding block (16) is in sliding connection with the guide pipe (14), and two ends of the guide pipe (14) penetrate through one end of the discharging pipe (12) and one end of the oil storage tank (13) respectively.