CN220461637U - Pneumatic cleaning gun for pipeline - Google Patents

Abstract

The utility model provides a pneumatic cleaning gun for a pipeline, which relates to the field of pneumatic cleaning guns for pipelines, and adopts the following scheme: including the cylinder body, the cylinder body includes high-pressure cavity, high-pressure cavity intercommunication high-pressure air supply, but be provided with the piston axially movable in the cylinder body, the piston runs through high-pressure cavity, the piston axial is provided with the venthole, the piston front end can stretch out outside the cylinder body, be provided with the air vent on the periphery of piston, the air vent with the venthole intercommunication, works as when the piston stretches out to the cylinder body external location, the air vent is located high-pressure cavity is outside, works as when the piston is retracted to the cylinder body in set up the position, the air vent with high-pressure cavity intercommunication, all be provided with the sealing member on the cylinder body at both ends around the high-pressure cavity. The utility model does not need to open the cleaning gun to load the sponge bullets, and has convenient operation and low failure rate.

Description

Pneumatic cleaning gun for pipeline

Technical Field

The utility model relates to the field of pneumatic cleaning guns for pipelines, in particular to a pneumatic cleaning gun for pipelines.

Background

The pipeline is used for conveying media, after long-term use, the inner wall of the pipeline is polluted because of corrosion and other reasons, normal conveying of the pipeline is affected, the pipeline is affected to a certain extent, the pipeline is required to be cleaned to remove stains and dredge the pipeline in order to ensure the assembly quality and normal use of the pipeline, high-pressure water jet flow or chemical cleaning can be adopted, a part of plugs of the pipeline can be cleaned in the two modes, the pipeline is limited by the shape of the pipeline, cleaning is not thorough, residual liquid after chemical cleaning damages equipment, and environmental pollution is caused by waste liquid.

In the prior art, the pipeline is cleaned through the pneumatic cleaning gun, so that the pollution is less, the operation is simple, the pneumatic cleaning gun comprises a high-pressure control component, a transmitting nozzle, a sponge bullet and the like, the pneumatic cleaning gun transmits the sponge bullet at a higher speed to penetrate through a pipeline, the sponge bullet advances at a high speed in the pipeline, attachments and pollutants on the inner wall of the pipeline are thoroughly cleaned, the main material of the sponge bullet is polyurethane sponge, the toughness is high, the specification is various, and the pneumatic cleaning gun can be used for steel pipes with different inner diameters.

However, in the pneumatic cleaning gun in the prior art, a special firing nozzle is required to be installed, a sponge is installed in the firing nozzle to be fired, a gun body is required to be opened when a sponge bullet is filled, the bullet is time-consuming and labor-consuming, batch operation is inconvenient, meanwhile, when sponge bullets with different specifications are used, the firing nozzle is required to be replaced, the working efficiency is low, and after the pneumatic cleaning gun is used for many times, a high-pressure control component is easy to fail, so that the reliability of the whole pneumatic cleaning gun is poor.

Disclosure of Invention

In order to solve the problems that bullet filling in the prior art is time-consuming and labor-consuming, the utility model provides the pneumatic cleaning gun for the pipeline, which does not need to open the cleaning gun to fill sponge bullets, and has the advantages of convenient operation and low failure rate.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a pneumatic cleaning gun for pipeline, includes the cylinder body, the cylinder body includes high-pressure cavity, high-pressure cavity intercommunication high-pressure air supply, but axial displacement is provided with the piston in the cylinder body, the piston runs through high-pressure cavity, the piston axial is provided with the venthole, the piston front end can stretch out outside the cylinder body, be provided with the air vent on the periphery of piston, the air vent with the venthole intercommunication, works as when the piston stretches out to the cylinder body external location, the air vent is located high-pressure cavity is outside, works as the piston is retracted to when establishing the position in the cylinder body, the air vent with high-pressure cavity intercommunication, all be provided with the sealing member on the cylinder body at both ends around the high-pressure cavity. The high-pressure cavity, the sealing ring and the piston are matched to control the conduction of the vent hole, so that the on-off of high-pressure gas in the piston is controlled, the high-pressure gas is directly sprayed out of the piston to act on the sponge bullet in the pipeline, the sponge bullet is not required to be filled in the gun body, the operation and the control are convenient, the self-plugging is realized through the movement of the piston, other control parts are not required to be additionally arranged, and the failure rate is low.

Further, the rear end of the piston is coaxially provided with a guide rod, and the rear end of the guide rod extends out of the cylinder body and is provided with a handle. Realize manual shutoff that resets through the handle, simple structure, the reliability is higher.

Further, the cylinder body further comprises a driving chamber, the driving chamber is communicated with the high-pressure chamber and is coaxially arranged, the driving chamber is provided with a driving assembly, and the rear end of the piston is connected with the driving assembly. The driving assembly can replace the manual pulling and pushing of the piston, and the operation is convenient.

Further, the driving assembly comprises a rear end cover, the rear end cover is connected with the rear end of the cylinder body, a spring is arranged between the rear end cover and the piston, a limit flange is arranged on the circumferential surface of the piston, and the limit flange can be abutted to the front end surface of the driving cavity. The piston can be reset to automatically block the vent hole through the cooperation of the spring and the limit flange, so that the operation is more convenient, and the structure is simpler.

Further, a guide rod is arranged at the rear part of the piston, and the spring is sleeved on the guide rod. The spring deflection can be avoided through the guide rod, and the effective action of the spring is ensured.

Further, a nozzle is arranged at the front end of the piston and is communicated with the air outlet, and the nozzle is of a conical structure. The spray nozzle with the conical structure can enable the cleaning gun to be convenient to perform surface matching with pipelines with various apertures to achieve a temporary sealing effect, the application range is enlarged, and meanwhile the sealing effect of the cleaning gun and the pipeline is improved.

Further, a limiting block is arranged on the inner side of the rear end cover, and the limiting block can be abutted with the piston. The limit block is arranged, so that the problem that the cleaning efficiency is influenced due to the fact that gaps are generated between the conical nozzle and the cylinder body due to the fact that the piston is too backward under the action of external force can be avoided.

Further, the cylinder body is provided with an air inlet hole, the air inlet hole is communicated with the high-pressure chamber, and the air inlet hole is further provided with an air inlet joint.

Further, the axis of the vent hole is perpendicular to the axis of the piston, and at least three vent holes are uniformly formed in the vent hole. The large air inflow can be ensured to reach large injection pressure by arranging a plurality of vent holes.

Further, the rear end cover is in threaded connection with the cylinder body.

Further, the sealing element adopts an O-shaped sealing ring.

From the above technical scheme, the utility model has the following advantages:

the utility model provides a pneumatic cleaning gun for a pipeline, which can control the conduction of a vent hole through the moving coordination of a high-pressure chamber, a sealing ring and a piston so as to control the on-off of high-pressure gas in the piston, so that the high-pressure gas is directly sprayed out of the piston to act on a sponge bullet in a pipeline, the sponge bullet is not required to be arranged in a gun body, the operation and the control are convenient, the structure is simple, the self-plugging is realized through the movement of the piston, other control components are not required to be additionally arranged, and the failure rate is low; the manual resetting plugging is realized through the handle, the structure is simple, and the reliability is higher; the driving assembly can replace the manual pulling and pushing of the piston, so that the operation is convenient; the piston can be reset to automatically block the vent hole through the matching of the spring and the limit flange, so that the operation is more convenient, and the structure is simpler; the spring deflection can be avoided through the guide rod, and the effective action of the spring is ensured; the spray nozzle with the conical structure can facilitate the surface matching with pipelines with various apertures to achieve a temporary sealing effect, so that the application range is enlarged, and the sealing effect of the cleaning gun and the pipeline is improved; the limit block is arranged, so that the problem that the cleaning efficiency is influenced due to the fact that a gap is generated between the conical nozzle and the cylinder body due to the fact that the piston is too backward under the action of external force can be avoided; the large air inflow can be ensured to reach large injection pressure by arranging a plurality of vent holes.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view illustrating a cleaning state according to an embodiment of the utility model.

Fig. 2 is a schematic structural view of a cylinder according to a first embodiment of the present utility model.

Fig. 3 is a schematic view showing an assembly structure of a handle, a guide rod, a piston and a nozzle according to a first embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a second embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of a cylinder in a second embodiment of the present utility model.

Fig. 6 is a schematic diagram showing an assembly structure of a guide rod, a piston and a nozzle according to a second embodiment of the present utility model.

Fig. 7 is a schematic structural view of a rear end cap according to a second embodiment of the present utility model.

In the figure, 1, a handle, 2, a guide rod, 3, a sealing piece, 4, a cylinder body, 401, a rear outlet, 402, a driving chamber, 403, a front outlet, 404, an air inlet hole, 405, a high-pressure chamber, 406, a sealing groove, 5, an air inlet joint, 6, a piston, 601, an air outlet hole, 602, an air vent, 603, a limiting flange, 7, a sponge bullet, 8, a pipeline, 9, a nozzle, 10, a spring, 11, a rear end cover, 111 and a limiting block.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

The inventor finds that in the existing pneumatic cleaning gun, a special firing nozzle is required to be installed, a sponge is installed in the firing nozzle for firing, a gun body is required to be opened for each filling of a sponge bullet, the bullet filling is time-consuming and labor-consuming, and batch operation is inconvenient; based on the above, in an embodiment of the present utility model provided by the inventor, the structure of the cleaning gun is improved, and the firing nozzle is omitted, so that when in use, the sponge bullet is directly filled into the pipeline instead of the gun body, and the problem that the bullet filling is time-consuming and labor-consuming in the prior art is solved.

Detailed description of the preferred embodiments

As shown in fig. 1 to 3, the present embodiment provides a pneumatic cleaning gun for a pipeline 8, comprising a cylinder body 4 and a piston 6; the cylinder body 4 comprises a high-pressure chamber 405, the high-pressure chamber 405 is communicated with a high-pressure air source, a piston 6 is axially movably arranged in the cylinder body 4, the piston 6 penetrates through the high-pressure chamber 405, the rear end of the piston 6 can extend out of the cylinder body 4, the rear end of the cylinder body 4 is provided with a rear outlet 401, the piston 6 is axially provided with an air outlet 601, the front end of the piston 6 can extend out of the cylinder body 4, the front end of the cylinder body 4 is provided with a front outlet 403, the circumferential surface of the piston 6 is provided with an air vent 602, the air vent 602 is communicated with the air outlet 601, when the piston 6 extends out of the cylinder body 4 to a set position, the air vent 602 is positioned outside the high-pressure chamber 405 and is not communicated with the high-pressure chamber 405, when the piston 6 is retracted to the set position inside the cylinder body 4, the air vent 602 is communicated with the high-pressure chamber 405, the front outlet 403 and the rear outlet 401 of the cylinder body 4 are both provided with sealing pieces 3, in this embodiment, the front outlet 403 and the rear outlet 401 of the cylinder body 4 are provided with sealing grooves 406, the sealing pieces 3 are arranged in the sealing grooves 406, and the sealing pieces 3 are O-shaped sealing rings; by controlling the forward and backward movement of the piston 6, whether the vent hole 602 is communicated with the high-pressure chamber 405 or not can be realized, when the piston 6 moves backward under the action of external force to enable the vent hole 602 to be communicated with the high-pressure chamber 405, the high-pressure air is communicated with the high-pressure air channel, the piston 6 can spray high-pressure air to a pipeline, when the piston 6 moves forward, the vent hole 602 is not communicated in the high-pressure chamber 405 any more, and the piston 6 stops spraying the high-pressure air and is not cleaned any more; the connection of the vent 602 can be controlled through the moving coordination of the high-pressure chamber 405, the sealing ring and the piston 6, so that the on-off of high-pressure gas in the piston 6 is controlled, the high-pressure gas is directly sprayed out of the piston 6 to act on the sponge bullet 7 in the pipeline, the sponge bullet 7 is not required to be arranged in a gun body, the operation and the control are convenient, the self-plugging is realized through the moving of the piston 6 in a simple structure, other control components are not required to be additionally arranged, and the failure rate is low.

As shown in fig. 1 and 3, in order to enable the cleaning gun to form a temporary sealing effect with the pipeline 8, the front end of the piston 6 is provided with a nozzle 9, the nozzle 9 is communicated with the air outlet 601, the nozzle 9 is of a conical structure, the nozzle 9 can extend into the pipe orifice through the nozzle 9 with the conical structure, the outer surface of the nozzle 9 and the orifice are uniformly compressed under the action of external force to achieve the temporary sealing effect, and the conical structure is suitable for being matched with the pipeline 8 with various apertures in a molded surface to achieve the temporary sealing effect, so that the application range is enlarged.

As shown in fig. 1 and 2, in order to facilitate the connection of the high-pressure air source and reduce leakage, the cylinder 4 is provided with an air intake hole 404, the air intake hole 404 being in communication with a high-pressure chamber 405, the air intake hole 404 being further provided with an air intake joint 5.

As shown in fig. 3, the axis of the vent holes 602 is perpendicular to the axis of the piston 6, and at least three vent holes 602 are uniformly provided, and in this embodiment, 4 vent holes are provided; by providing a plurality of ventilation holes 602, it is possible to ensure that a larger intake air amount reaches a larger injection pressure.

In the specific embodiment, the rear end of the piston 6 is coaxially provided with the guide rod 2, the guide rod 2 can extend out from the rear end of the cylinder body 4, the guide rod 2 can move along the rear outlet 401, the rear end of the guide rod 2 is vertically provided with the handle 1 for conveniently manually pushing the piston 6, the manual resetting of the piston 6 for plugging is realized through the handle 1, and the structure is simple and the reliability is higher; the rear end face of the piston 6 is used for limiting, so that air leakage caused by a gap between the nozzle 9 and the cylinder body 4 is avoided, the length of the piston 6 body, namely the part which does not contain the guide rod 2 and the nozzle 9, is required to meet the requirement of ensuring that the nozzle 9 does not enter the cylinder body 4 when the piston 6 is pressed to a final position by the pipeline 8.

The working process of the pneumatic cleaning gun for the pipeline 8 is as follows:

when the cleaning is to be performed, firstly, a sponge bullet 7 with a proper size is plugged into a pipe orifice, then a pipeline 8 is directly abutted against a nozzle 9, a piston 6 moves backwards under the action of the abutting pressure of the pipeline 8, a vent hole 602 is communicated with a high-pressure chamber 405, high-pressure air is ejected, and the sponge bullet 7 moves rapidly in a pipeline; after cleaning, the pipeline 8 is taken off, the handle 1 is pushed or the cylinder body 4 is pulled back to enable the piston 6 to move forward relative to the cylinder body 4, the vent hole 602 moves forward and is not communicated with the high-pressure cavity 405 any more, plugging is achieved, and the cleaning gun is vertically placed after use, so that false triggering is avoided.

In order to reduce the resistance to movement of the piston 6, the outer surfaces of the piston 6 and the guide rod 2 may be periodically coated with lubricating grease.

Detailed description of the preferred embodiments

As shown in fig. 4 to 7, this embodiment is basically the same as the first embodiment in structure, except that: the cylinder body 4 further comprises a driving cavity 402, the driving cavity 402 is arranged at the rear end of the cylinder body 4, the driving cavity 402 is communicated with the high-pressure cavity 405 and is coaxially arranged, the driving cavity 402 is provided with a driving component, the rear end of the piston 6 is connected with the driving component, the piston 6 can be pulled and pushed manually by the driving component instead of a person, and the operation is convenient, and in the specific embodiment, a rear sealing piece 3 is arranged between the driving cavity 402 and the high-pressure cavity 405; in the specific embodiment, in order to further simplify the structure, the driving assembly comprises a rear end cover 11, the rear end cover 11 is in threaded connection with the rear end of the cylinder body 4, the inner wall of the end cover is provided with internal threads, the driving cavity 402 is of an opening structure, a spring 10 is arranged on the cylinder body 4 between the rear end cover 11 and the piston 6, a limit flange 603 is arranged on the circumferential surface of the piston 6, the limit flange 603 can be abutted to the front end surface of the driving cavity 402, and the piston 6 can be reset to automatically seal the vent 602 through the cooperation of the spring 10 and the limit flange 603, so that the operation is more convenient and the structure is simpler; the spring 10 is sleeved on the guide rod 2, and the deflection of the spring 10 can be avoided through the guide rod 2, so that the effective action of the spring 10 is ensured; the inboard of rear end cap 11 is provided with stopper 111, and stopper 111 can be with guide bar 2 butt, can avoid piston 6 too back to cause the gap to lead to high pressure gas leakage to influence cleaning efficiency between taper nozzle 9 and the cylinder body 4 under the exogenic action through setting up stopper 111.

The working process of the pneumatic cleaning gun for the pipeline 8 is as follows:

when the cleaning is to be performed, firstly, a sponge bullet 7 with a proper size is plugged into a pipe orifice, then a pipeline 8 is directly abutted against a nozzle 9, a piston 6 moves backwards under the action of the abutting pressure of the pipeline 8, a vent hole 602 is communicated with a high-pressure chamber 405, high-pressure air is ejected, and the sponge bullet 7 moves rapidly in a pipeline; after the cleaning is finished, the pipeline 8 is taken off, the piston 6 automatically resets under the action of the spring 10, the piston 6 moves forward, the vent 602 moves forward and is not communicated with the high-pressure chamber 405 any more, and the sealing is realized.

From the above detailed description, it can be seen that the present utility model has the following advantages:

1. the connection of the vent hole 602 can be controlled through the moving coordination of the high-pressure chamber 405, the sealing ring and the piston 6, so that the on-off of high-pressure gas in the piston 6 is controlled, the high-pressure gas is directly sprayed out of the piston 6 to act on the sponge bullet 7 in the pipeline, the sponge bullet 7 is not required to be arranged in a gun body, the operation and the control are convenient, the self-plugging is realized through the moving of the piston 6 in a simple structure, other control components are not required to be additionally arranged, and the failure rate is low;

2. the manual resetting plugging is realized through the handle, the structure is simple, and the reliability is higher;

3. the driving assembly can replace the manual pulling and pushing of the piston 6, so that the operation is convenient;

4. the piston 6 can be reset to automatically seal the vent hole 602 through the cooperation of the spring 10 and the limit flange 603, so that the operation is more convenient, and the structure is simpler;

5. the deflection of the spring 10 can be avoided through the guide rod 2, and the effective action of the spring 10 is ensured;

6. the spray nozzle 9 with the conical structure can facilitate the surface matching with the pipelines 8 with various apertures to achieve the temporary sealing effect, so that the application range is enlarged, and the sealing effect of the cleaning gun and the pipeline is improved;

7. the limit block 111 is arranged, so that the problem that the cleaning efficiency is influenced due to high-pressure gas leakage caused by the gap between the conical nozzle 9 and the cylinder body 4 due to the fact that the piston 6 is too backward under the action of external force can be avoided;

8. by providing a plurality of ventilation holes 602, it is possible to ensure that a larger intake air amount reaches a larger injection pressure.

The terms "upper," "lower," "outboard," "inboard," and the like in the description and in the claims of the utility model and in the above figures, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a pneumatic cleaning gun for pipeline, including cylinder body (4), a serial communication port, cylinder body (4) are including high-pressure cavity (405), high-pressure cavity (405) intercommunication high-pressure air supply, but axial displacement is provided with piston (6) in cylinder body (4), piston (6) run through high-pressure cavity (405), piston (6) axial is provided with venthole (601), piston (6) front end can stretch out cylinder body (4) outside, be provided with air vent (602) on the periphery of piston (6), air vent (602) and venthole (601) intercommunication, when piston (6) stretch out to cylinder body (4) outside fixed position, air vent (602) are located high-pressure cavity (405) outside, when piston (6) retract to cylinder body (4) in set position, air vent (602) and high-pressure cavity (405) intercommunication, all be provided with sealing member (3) on cylinder body (4) at both ends around high-pressure cavity (405).

2. Pneumatic cleaning gun for pipelines according to claim 1, characterized in that the rear end of the piston (6) is coaxially provided with a guide rod (2), the rear end of the guide rod (2) extends out of the cylinder (4) and is provided with a handle (1).

3. Pneumatic cleaning gun for pipelines according to claim 1, characterized in that the cylinder (4) further comprises a driving chamber (402), the driving chamber (402) is communicated with the high-pressure chamber (405) and coaxially arranged, the driving chamber (402) is provided with a driving assembly, and the rear end of the piston (6) is connected with the driving assembly.

4. A pneumatic cleaning gun for pipelines according to claim 3, characterized in that the drive assembly comprises a rear end cover (11), the rear end cover (11) is connected with the rear end of the cylinder body (4), a spring (10) is arranged between the rear end cover (11) and the piston (6), a limit flange (603) is arranged on the circumferential surface of the piston (6), and the limit flange (603) can be abutted against the front end surface of the drive chamber (402).

5. Pneumatic cleaning gun for pipelines according to claim 4, characterized in that the rear part of the piston (6) is provided with a guide rod (2), and the spring (10) is sheathed on the guide rod (2).

6. The pneumatic cleaning gun for pipelines according to claim 4, characterized in that the front end of the piston (6) is provided with a nozzle (9), the nozzle (9) is communicated with the air outlet hole (601), and the nozzle (9) is in a conical structure.

7. The pneumatic cleaning gun for pipelines according to claim 6, characterized in that a limiting block (111) is arranged on the inner side of the rear end cover (11), and the limiting block (111) can be abutted with the piston (6).

8. Pneumatic cleaning gun for pipelines according to claim 1, characterized in that the cylinder (4) is provided with an air inlet (404), the air inlet (404) being in communication with the high pressure chamber (405), the air inlet (404) being further provided with an air inlet joint (5).

9. The pneumatic cleaning gun for pipelines according to claim 1, characterized in that the axis of the vent holes (602) is perpendicular to the axis of the piston (6), and the vent holes (602) are uniformly provided with at least three.

10. Pneumatic cleaning gun for pipelines according to claim 4, characterized in that the rear end cap (11) is screwed with the cylinder (4).