Pneumatic power machine

Abstract

The utility model relates to the technical field of pneumatic transmission, and discloses a pneumatic power machine which comprises a cabinet body, the cabinet body is provided with a cavity, the top face of the cabinet body is fixedly connected with an air inlet pipe, the air inlet pipe is connected with the input end of an air compressor through a pipeline, a filter screen is fixed to a port of the air inlet pipe through bolts, and the filter screen filters air entering the air compressor. A detachable impurity removal structure is arranged in a cavity of the air inlet pipe and comprises a filter element, a pressing plate and an elastic piece, external air is preliminarily filtered through a filter screen and enters the air inlet pipe, and air is filtered through the filter element and enters a pipeline connected with the input end of the air compressor from an air hole in the bottom face of the air inlet pipe. The pressing plate can tightly press the filter element on the top face of the elastic piece, the sealing performance of the end of the filter element is guaranteed, air is prevented from entering the air compressor without being filtered by the filter element, meanwhile, the detachable elastic piece and the filter element can facilitate cleaning and maintenance of the filter element, and impurities filtered by the filter element can be taken out of the air inlet pipe when the elastic piece is taken down.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic transmission, and in particular relates to a pneumatic power machine. Background Art

[0002] The prior art discloses a pneumatic power machine (CN202220382627.8), comprising a box, one side of which is provided with a double door, a partition is fixed inside the box, an air storage tank and an air compressor are fixed at the bottom of the box, an air motor and a transfer box are fixed on the partition, the output end of the air compressor is connected to the air storage tank through a conduit, and the air storage tank is connected to the air inlet end of the air motor through a conduit;

[0003] The prior art sets a filter at the port of the air inlet pipe to block impurities in the gas entering the air compressor. However, the filter has limited filtering effect on the air. Some small particles of impurities entering the air compressor will cause wear on the machine plug and the cylinder wall. If a filter element is directly placed in the pipe, there will be a gap at the contact surface between the filter element and the pipe, and gas can easily enter the air compressor through the gap. There is room for optimization of the gas filtering part in the prior art.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A pneumatic power machinery comprises a cabinet body, which has a cavity. An air compressor and a storage tank are installed in the cavity of the cabinet body. The storage tank is connected to the output end of the air compressor through a pipeline. An air intake pipe is fixedly connected to the top surface of the cabinet body. The air intake pipe is connected to the input end of the air compressor through a pipeline. A filter is fixed to the port of the air intake pipe by bolts. The filter filters the gas entering the air compressor. A detachable impurity removal structure is arranged in the cavity of the air intake pipe. The impurity removal structure comprises a filter element, a pressure plate and an elastic member. The filter element is plugged into the elastic member, the elastic member is clamped into the air intake pipe, the pressure plate is elastically connected to the filter screen and presses the filter element against the end face of the elastic member. The gas entering the air intake pipe is filtered by the filter element and then sent to the air compressor.

[0007] As a preferred embodiment of the utility model, the air inlet pipe forms a tube with a closed bottom, the elastic member is annular, the top surface of the elastic member forms a retaining edge, and the filter element is clamped with the retaining edge.

[0008] As a preferred embodiment of the utility model, the top of the filter element is closed, the rib is in an annular structure, and the rib is interference fit with the inner size of the cavity of the filter element.

[0009] As a preferred embodiment of the present invention, the retaining edge is elastic, and the retaining edge and the elastic member are integrally formed.

[0010] As a preferred embodiment of the utility model, the impurity removal structure also includes a baffle rod, a through hole, a clamping channel and a thrust piece. A clamping groove is provided on the inner bottom surface of the intake pipe, and the elastic piece is located in the clamping groove. The baffle rod is fixedly connected to the intake pipe, and a through hole is provided on the end surface of the retaining edge. The baffle rod extends through the through hole to the top of the retaining edge to support the filter element. A clamping channel is also provided on the inner bottom surface of the intake pipe, and the elastic piece is clamped to the clamping channel through the thrust piece.

[0011] As a preferred embodiment of the utility model, the thrust piece has a cylindrical part and a spherical part, the sphere and the cylinder are integrally formed, the cylindrical part of the snap-in channel is fixedly connected to the bottom surface of the elastic piece, the thrust piece and the snap-in channel are interference fit, and the spherical part of the thrust piece is squeezed into the snap-in channel to lock the elastic piece.

[0012] As a preferred embodiment of the utility model, the impurity removal structure also includes a connecting rod and an elastic telescopic rod, the elastic telescopic rod is connected to the filter screen through the connecting rod, and the pressure plate is fixedly connected to the output shaft of the elastic telescopic rod and pushes down the filter element.

[0013] As a preferred embodiment of the utility model, the connecting rod is an L-shaped rod body, the connecting rod is fixedly connected to the bottom surface of the filter, the horizontal bending part of the connecting rod is provided with a threaded hole, the outer wall surface of the shell of the elastic telescopic rod is provided with threaded teeth, and the shell of the elastic telescopic rod is threadedly connected to the threaded hole of the connecting rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By setting the air intake pipe, the frame of the filter is locked with the air intake pipe by bolts, and the outside air is initially filtered through the filter mesh and enters the air intake pipe. The gas is filtered by the filter element and enters the pipe connected to the input end of the air compressor from the air vents on the bottom of the air intake pipe. By setting a pressure plate, the pressure plate can press the filter element against the top surface of the elastic member to ensure the sealing of the end of the filter element, prevent the gas from entering the air compressor without being filtered by the filter element, and improve the filtering effect of the gas. At the same time, the detachable elastic member and filter element can facilitate the cleaning and maintenance of the filter element. When the elastic member is removed, the impurities filtered by the filter element can be taken out of the air intake pipe.

[0016] 2. By setting the retaining edge, the retaining edge can form a support on the inner wall of the filter element near the opening position and clamp the filter element to prevent the filter element from loosening. The two retaining rods extend through the through hole to the filter element cavity. Multiple retaining rods jointly hold open the filter element to prevent the filter element from being deformed and damaged when the air compressor inhales air, thereby better protecting the filter element. By setting a thrust piece, the thrust piece is squeezed into the clamping channel to achieve the installation or disassembly of the elastic piece, which is convenient for removing the elastic piece to clean the particulate impurities collected on the top surface of the elastic piece. The elastic piece can be equal to the inner diameter of the intake pipe, and the top surface of the elastic piece is concave facing the center of the circle to facilitate the collection of impurities.

[0017] 3. By setting an elastic telescopic rod, the output shaft of the elastic telescopic rod pushes the pressure plate close to the filter element and presses the filter element against the top surface of the elastic member to further lock the filter element. The lower end opening of the filter element fits more closely with the elastic member to prevent air leakage.

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a partial exploded view of the utility model;

[0022] Figure 3 This is the assembly diagram of the filter element and the air intake pipe of the utility model;

[0023] Figure 4 This is the assembly diagram of the elastic machine and the air intake pipe of the utility model.

[0024] In the figure: 10, cabinet; 11, air inlet pipe; 12, filter screen; 20, filter element; 21, pressure plate; 22, connecting rod; 23, elastic telescopic rod; 30, elastic member; 31, retaining edge; 32, slot; 33, retaining rod; 34, through hole; 35, clamping channel; 36, thrust member. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0026] A pneumatically powered machine, such as Figure 1-Figure 3As shown, it includes a cabinet 10, the cabinet 10 has a cavity, an air compressor and a storage tank are installed in the cavity of the cabinet 10, the storage tank is connected to the output end of the air compressor through a pipeline, an air intake pipe 11 is fixedly connected to the top surface of the cabinet 10, the air intake pipe 11 is connected to the input end of the air compressor through a pipeline, a filter screen 12 is fixed to the port of the air intake pipe 11 by bolts, the filter screen 12 filters the gas entering the air compressor, and a detachable impurity removal structure is arranged in the cavity of the air intake pipe 11. The impurity removal structure includes a filter element 20, a pressure plate 21 and an elastic member 30. The filter element 20 is plugged into the elastic member 30, the elastic member 30 is clamped into the air inlet pipe 11, the pressure plate 21 is elastically connected to the filter screen 12 and presses the filter element 20 against the end face of the elastic member 30. The gas entering the air inlet pipe 11 is filtered by the filter element 20 and then sent to the air compressor. The air inlet pipe 11 forms a tube with a closed bottom. The elastic member 30 is annular, and the top face of the elastic member 30 forms a retaining edge 31. The filter element 20 and the filter screen 12 are connected to each other. The retaining edge 31 is snap-connected, and the top of the filter element 20 is closed. The retaining edge 31 is an annular structure, and the retaining edge 31 is interference-fitted with the inner size of the cavity of the filter element 20. The retaining edge 31 is elastic, and the retaining edge 31 and the elastic member 30 are integrally formed. In this scheme, by setting the air inlet pipe 11, the frame of the filter screen 12 is locked with the air inlet pipe 11 by bolts, and the outside air is initially filtered through the filter screen 12 and enters the air inlet pipe 11. The gas enters the pipeline connected to the input end of the air compressor from the air vents on the bottom surface of the air inlet pipe 11 after being filtered by the filter element 20. By setting the pressing plate 21, the pressing plate 21 can press the filter element 20 against the top surface of the elastic member 30 to ensure the sealing of the end of the filter element 20 and prevent the gas from entering the air compressor without being filtered by the filter element 20. At the same time, the detachable elastic member 30 and the filter element 20 can facilitate the cleaning and maintenance of the filter element 20. The removal of the elastic member 30 can bring the impurities filtered by the filter element 20 out of the air inlet pipe 11.

[0027] like Figure 3 and Figure 4As shown, the impurity removal structure also includes a blocking rod 33, a through hole 34, a clamping channel 35 and a thrust piece 36. The inner bottom surface of the intake pipe 11 is provided with a clamping groove 32, and the elastic member 30 is located in the clamping groove 32. The blocking rod 33 is fixedly connected to the intake pipe 11. The end surface of the retaining edge 31 is provided with a through hole 34. The blocking rod 33 passes through the through hole 34 and extends to the top of the retaining edge 31 to support the filter element 20. The inner bottom surface of the intake pipe 11 is also provided with a clamping channel 35. The elastic member 30 is clamped with the clamping channel 35 through the thrust piece 36. The thrust piece 36 has a cylindrical part and a spherical part. The sphere and the cylinder are integrally formed. The cylindrical part of the clamping channel 35 is fixedly connected to the bottom surface of the elastic member 30. The thrust piece 36 is interference fit with the clamping channel 35. The spherical part of the thrust piece 36 The spring member 30 is squeezed into the card connection channel 35 to lock the spring member 30. By setting the retaining edge 31, the retaining edge 31 can form a support on the inner wall of the filter element 20 near the opening position and clamp the filter element 20 to prevent the filter element 20 from loosening. The two retaining rods 33 extend through the through hole 34 to the cavity of the filter element 20. The multiple retaining rods 33 jointly prop up the filter element 20 to prevent the filter element 20 from being deformed and damaged when the air compressor inhales air, so as to better protect the filter element 20. By setting the thrust member 36, the thrust member 36 is squeezed into the card connection channel 35 to realize the installation or disassembly of the spring member 30, so as to facilitate the removal of the spring member 30 and the cleaning of the particulate impurities collected on the top surface of the spring member 30. The spring member 30 can be equal to the inner diameter of the intake pipe 11, and the top surface of the elastic member 30 is concave facing the center of the circle to facilitate the collection of impurities.

[0028] like Figure 2 As shown, the impurity removal structure also includes a connecting rod 22 and an elastic telescopic rod 23. The elastic telescopic rod 23 is connected to the filter screen 12 through the connecting rod 22. The pressure plate 21 is fixedly connected to the output shaft of the elastic telescopic rod 23 and pushes down the filter element 20. The connecting rod 22 is an L-shaped rod body. The connecting rod 22 is fixedly connected to the bottom surface of the filter screen 12. A threaded hole is provided in the horizontal bending part of the connecting rod 22. The outer wall surface of the shell of the elastic telescopic rod 23 is provided with threaded teeth. The shell of the elastic telescopic rod 23 is threadedly connected to the threaded hole of the connecting rod 22. By setting the elastic telescopic rod 23, the output shaft of the elastic telescopic rod 23 pushes the pressure plate 21 close to the filter element 20 and presses the filter element 20 against the top surface of the elastic member 30 to achieve further locking of the filter element 20. The lower end opening of the filter element 20 fits more closely with the elastic member 30 to prevent air leakage.

[0029] Working principle: an air inlet pipe 11 is set, and the frame of the filter screen 12 is locked with the air inlet pipe 11 by bolts. The outside air is initially filtered through the filter screen 12 and enters the air inlet pipe 11. The gas is filtered by the filter element 20 and enters the pipeline connected to the input end of the air compressor from the air vent on the bottom surface of the air inlet pipe 11. By setting a pressure plate 21, the pressure plate 21 can press the filter element 20 against the top surface of the elastic member 30, and the retaining edge 31 can form a support on the inner wall of the filter element 20 near the opening position and clamp the filter. The filter element 20 is held open by the plurality of retaining rods 33 to prevent the filter element 20 from being deformed and damaged when the air compressor inhales air. The thrust piece 36 is squeezed into the card-connecting channel 35 to realize the installation or removal of the elastic piece 30. The output shaft of the elastic telescopic rod 23 pushes the pressure plate 21 to approach the filter element 20 and presses the filter element 20 against the top surface of the elastic piece 30 to further lock the filter element 20.

[0030] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A pneumatic power machine, comprising a cabinet (10), the cabinet (10) having a cavity, an air compressor and a storage tank installed in the cavity of the cabinet (10), the storage tank being connected to the output end of the air compressor through a pipeline, an air intake pipe (11) being fixedly connected to the top surface of the cabinet (10), the air intake pipe (11) being connected to the input end of the air compressor through a pipeline, a filter screen (12) being fixed to the port of the air intake pipe (11) through bolts, the filter screen (12) filtering the gas entering the air compressor, characterized in that: A detachable impurity removal structure is arranged in the cavity of the air intake pipe (11), and the impurity removal structure comprises a filter element (20), a pressure plate (21) and an elastic member (30); the filter element (20) is plugged into the elastic member (30), the elastic member (30) is clamped into the air intake pipe (11), the pressure plate (21) is elastically connected to the filter screen (12) and presses the filter element (20) against the end surface of the elastic member (30); the gas entering the air intake pipe (11) is filtered by the filter element (20) and then sent to the air compressor.

2. The pneumatic power machine according to claim 1, characterized in that: The air inlet pipe (11) forms a tube with a closed bottom, the elastic member (30) is annular, the top surface of the elastic member (30) forms a retaining edge (31), and the filter element (20) is clamped with the retaining edge (31).

3. The pneumatic power machine according to claim 1, characterized in that: The top of the filter element (20) is closed, the rib (31) is in an annular structure, and the rib (31) is interference-fitted with the inner dimensions of the cavity of the filter element (20).

4. The pneumatic power machine according to claim 2, characterized in that: The retaining edge (31) is elastic, and the retaining edge (31) and the elastic member (30) are integrally formed.

5. The pneumatic power machine according to claim 1, characterized in that: The impurity removal structure further comprises a blocking rod (33), a through hole (34), a clamping channel (35) and a thrust piece (36); a clamping groove (32) is provided on the inner bottom surface of the air intake pipe (11); the elastic piece (30) is located in the clamping groove (32); the blocking rod (33) is fixedly connected to the air intake pipe (11); a through hole (34) is provided on the end surface of the retaining edge (31); the blocking rod (33) passes through the through hole (34) and extends to the upper part of the retaining edge (31) to support the filter element (20); a clamping channel (35) is also provided on the inner bottom surface of the air intake pipe (11); the elastic piece (30) is clamped with the clamping channel (35) through the thrust piece (36).

6. The pneumatic power machine according to claim 5, characterized in that: The thrust piece (36) comprises a cylindrical part and a spherical part, the spherical part and the cylinder are integrally formed, the cylindrical part of the clamping channel (35) is fixedly connected to the bottom surface of the elastic piece (30), the thrust piece (36) and the clamping channel (35) are interference fit, and the spherical part of the thrust piece (36) is squeezed into the clamping channel (35) to lock the elastic piece (30).

7. The pneumatic power machine according to claim 1, characterized in that: The impurity removal structure also includes a connecting rod (22) and an elastic telescopic rod (23), wherein the elastic telescopic rod (23) is connected to the filter screen (12) via the connecting rod (22), and the pressing plate (21) is fixedly connected to the output shaft of the elastic telescopic rod (23) and pushes down the filter element (20).

8. The pneumatic power machine according to claim 7, characterized in that: The connecting rod (22) is an L-shaped rod body, the connecting rod (22) is fixedly connected to the bottom surface of the filter screen (12), a threaded hole is provided at the horizontal bending portion of the connecting rod (22), threaded teeth are provided on the outer wall surface of the shell of the elastic telescopic rod (23), and the shell of the elastic telescopic rod (23) is threadedly connected to the threaded hole of the connecting rod (22).

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