A hydraulic pneumatic pump

Abstract

This utility model belongs to the field of hydraulic pump technology, specifically a hydraulic pneumatic pump, including a hydraulic pneumatic pump body and an air inlet; the air inlet is fixedly connected to the side wall of the hydraulic pneumatic pump body; a filter assembly is installed at the end of the air inlet away from the hydraulic pneumatic pump body; through the above structure, the filter assembly filters the compressed air entering the hydraulic pneumatic pump body, forming a hydraulic pneumatic pump air intake filter structure, realizing the function of filtering the compressed air entering the hydraulic pneumatic pump body, solving the problem of abnormal wear of internal moving parts caused by impurities in the compressed air entering the hydraulic pneumatic pump body, reducing the situation of excessive wear of internal parts of the hydraulic pneumatic pump body due to impurities, improving the service life of parts, and reducing the problem of decreased airtightness of the hydraulic pneumatic pump body due to abnormal wear.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic pump technology, specifically a hydraulic pneumatic pump. Background Technology

[0002] Hydraulic pneumatic pumps are important industrial power components that use compressed air as a power source to drive and generate high-pressure hydraulic oil output.

[0003] In the environmental protection field, when using filter presses to squeeze and filter sludge, hydraulic pneumatic pumps are usually used as the power source. The working principle of a hydraulic pneumatic pump is to use a large piston with high air pressure to push a small piston connected to it to generate a liquid column with low force but high pressure. Hydraulic pneumatic pumps have advantages such as safety and explosion-proof, high output pressure, easy adjustment and overload protection. In hydraulic pneumatic pump technology, when compressed air enters the hydraulic pneumatic pump through the pipeline, impurities or dust may enter the hydraulic pneumatic pump, causing abnormal wear of the internal parts of the hydraulic pneumatic pump.

[0004] Therefore, this utility model provides a hydraulic pneumatic pump. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A hydraulic pneumatic pump of this utility model includes a hydraulic pneumatic pump body and an air inlet; the air inlet is fixedly connected to the side wall of the hydraulic pneumatic pump body; a filter assembly is installed at the end of the air inlet away from the hydraulic pneumatic pump body; a locking assembly is provided through the filter assembly at the air inlet; a slag discharge assembly is provided through the filter assembly at the air inlet; through the above structure, the filter assembly filters the compressed air entering the hydraulic pneumatic pump body, forming a hydraulic pneumatic pump air intake filter structure, realizing the function of filtering the compressed air entering the hydraulic pneumatic pump body, solving the problem of impurities in the compressed air entering the hydraulic pneumatic pump body causing abnormal wear of the internal moving parts of the hydraulic pneumatic pump body, reducing the situation of excessive wear of internal parts of the hydraulic pneumatic pump body due to impurities, improving the service life of parts, and reducing the problem of decreased airtightness of the hydraulic pneumatic pump body due to abnormal wear.

[0007] Preferably, the filter assembly includes a first sealing cylinder, a second sealing cylinder, a quick-connect interface, and a filter cylinder; the first sealing cylinder is installed at the air inlet end; the second sealing cylinder is threadedly connected to the end of the first sealing cylinder away from the hydraulic pneumatic pump body; the quick-connect interface is installed at the end of the second sealing cylinder away from the first sealing cylinder; the filter cylinder is detachably installed on the inner side wall of the first sealing cylinder near the hydraulic pneumatic pump body; sealing assemblies are provided on the side walls of the second sealing cylinder and the first sealing cylinder that are close to each other; anti-slip assemblies are provided on the outer side walls of the first sealing cylinder and the second sealing cylinder; through the above structure, the compressed air enters the interior of the hydraulic pneumatic pump body after being filtered by the filter cylinder, forming the air inlet filter structure of the hydraulic pneumatic pump body, realizing the function of filtering the compressed air entering the interior of the hydraulic pneumatic pump body, solving the problem of impurities or dust entering the interior of the hydraulic pneumatic pump body with the compressed air, causing abnormal wear of the internal parts of the hydraulic pneumatic pump body, improving the smoothness of the internal moving parts of the hydraulic pneumatic pump body during operation, reducing the situation of excessive gaps caused by abnormal wear of the internal parts of the hydraulic pneumatic pump body, and increasing the airtightness of the hydraulic pneumatic pump body.

[0008] Preferably, the locking assembly includes a fastening rod, a fastening nut, and a fixing block; the fastening rod is rotatably connected to the outer wall of the first sealing cylinder; multiple sets of fastening rods are provided on the outer wall of the first sealing cylinder and are evenly distributed on the outer wall of the first sealing cylinder; the fastening nut is threadedly connected to the outer wall of the fastening rod away from the first sealing cylinder; the fixing block is fixedly connected to the outer wall of the second sealing cylinder; multiple sets of fixing blocks are provided on the outer wall of the second sealing cylinder and are evenly distributed on the outer wall of the second sealing cylinder; a rubber pad is fixedly connected to the side wall of the fastening nut near the first sealing cylinder; through the above structure, the setting of tightening the fastening nut to compress the fixing block and combine the second sealing cylinder and the first sealing cylinder together forms a locking structure for the first sealing cylinder and the second sealing cylinder, realizing the function of connecting the first sealing cylinder and the second sealing cylinder together, increasing the stability of the first sealing cylinder and the second sealing cylinder after combination, and reducing the possibility of the first sealing cylinder and the second sealing cylinder loosening and leaking due to air pressure impact.

[0009] Preferably, the slag discharge assembly includes a manual valve and a slag discharge valve; the manual valve is fixedly connected between the first sealing cylinder and the air inlet; the slag discharge valve is fixedly connected to the outer wall of the first sealing cylinder; through the above structure, the setting of closing the manual valve and opening the slag discharge valve to allow impurities in the first and second sealing cylinders to be discharged from the slag discharge valve with compressed air forms a filter slag discharge structure, realizing the function of discharging the impurities accumulated in the first and second sealing cylinders, improving the convenience of impurity cleaning, and reducing the cumbersome steps of disassembling parts during slag discharge.

[0010] Preferably, the sealing assembly includes a first sealing ring and a second sealing ring; the first sealing ring is fixedly connected to the end of the second sealing cylinder near the first sealing cylinder; the second sealing ring is fixedly connected to the inner wall of the first sealing cylinder; through the above structure, the first sealing ring and the second sealing ring seal the first sealing cylinder and the second sealing cylinder, forming a sealing structure of the first sealing cylinder and the second sealing cylinder, realizing the function of sealing when the first sealing cylinder and the second sealing cylinder are combined, solving the problem of poor sealing between the first sealing cylinder and the second sealing cylinder, improving the sealing performance of the device, reducing leakage between the first sealing cylinder and the second sealing cylinder, and improving the stability of compressed air pressure.

[0011] Preferably, the anti-slip component includes a pair of anti-slip rings; the anti-slip rings are respectively fixedly connected to the side walls of the second sealing cylinder and the first sealing cylinder that are close to each other; through the above structure, the setting of the hand contacting the anti-slip ring to turn the sealing cylinder forms an anti-slip structure for the sealing cylinder, improving the convenience of disassembling and assembling the sealing cylinder and reducing the slippage that occurs when turning the sealing cylinder.

[0012] Preferably, the inner walls of the first and second sealing cylinders are coated with an alloy material; the interior of the first and second sealing cylinders is coated with an alloy material to improve the wear resistance of the inner walls of the first and second sealing cylinders, reduce the possibility of impurities or dust scratching the inner walls of the sealing cylinders, and improve the service life of the components.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The hydraulic pneumatic pump of this utility model is configured to filter the compressed air entering the pump body through a filter assembly, forming an air intake filter structure. This achieves the function of filtering the compressed air entering the pump body, solving the problem of abnormal wear of internal moving parts caused by impurities in the compressed air entering the pump body. It reduces the occurrence of excessive wear on internal parts due to impurities, improves the service life of parts, and reduces the problem of decreased airtightness of the pump body due to abnormal wear.

[0015] 2. The hydraulic pneumatic pump of this utility model features an air intake filtration structure formed by filtering compressed air through a filter cartridge before it enters the pump body. This structure filters the compressed air entering the pump body, solving the problem of impurities or dust entering the pump body with the compressed air and causing abnormal wear on internal components. It also improves the smoothness of movement of internal components, reduces the likelihood of excessive clearance due to abnormal wear, and increases the airtightness of the pump body. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the fastening rod and the sealing cylinder in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the filter cylinder and the sealing cylinder in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the sealing ring and the sealing cylinder in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the slag discharge valve and the sealing cylinder in this utility model.

[0022] In the diagram: 1. Hydraulic pneumatic pump body; 11. Air inlet; 12. First sealing cylinder; 13. Second sealing cylinder; 14. Quick connector; 15. Filter cylinder; 2. Fastening rod; 21. Fastening nut; 22. Fixing block; 3. Manual valve; 31. Slag discharge valve; 4. First sealing ring; 41. Second sealing ring; 5. Anti-slip ring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 5As shown in the figure, a hydraulic pneumatic pump according to an embodiment of the present invention includes a hydraulic pneumatic pump body 1 and an air inlet 11; the air inlet 11 is fixedly connected to the side wall of the hydraulic pneumatic pump body 1; a filter assembly is installed at the end of the air inlet 11 away from the hydraulic pneumatic pump body 1; a locking assembly is provided through the filter assembly at the air inlet 11; a slag discharge assembly is provided through the filter assembly at the air inlet 11; during operation, before use, the filter assembly is installed at the end of the air inlet 11, compressed air is connected to the filter assembly, and the locking assembly is used to fix the filter assembly. When the external compressed air enters the interior of the hydraulic pneumatic pump body 1, the filter assembly filters the incoming air, blocking dust or impurities in the compressed air, and the filtered air enters the hydraulic pneumatic pump body 1. Internally, the hydraulic pneumatic pump body 1 is driven to work. After long-term operation, impurities accumulate in the filter assembly. The slag discharge assembly is opened to discharge the impurities from the filter assembly. Through the above structure, the filter assembly filters the compressed air entering the hydraulic pneumatic pump body 1, forming the hydraulic pneumatic pump inlet filter structure. This achieves the function of filtering the compressed air entering the hydraulic pneumatic pump body 1, solving the problem of abnormal wear of the internal moving parts of the hydraulic pneumatic pump body 1 caused by impurities in the compressed air entering the hydraulic pneumatic pump body 1. It reduces the situation of excessive wear of internal parts of the hydraulic pneumatic pump body 1 due to impurities, improves the service life of parts, and reduces the problem of decreased airtightness of the hydraulic pneumatic pump body 1 due to abnormal wear.

[0025] like Figures 1 to 3As shown, the filter assembly includes a first sealing cylinder 12, a second sealing cylinder 13, a quick-connect interface 14, and a filter cylinder 15. The first sealing cylinder 12 is installed at the end of the air inlet 11. The second sealing cylinder 13 is threadedly connected to the end of the first sealing cylinder 12 away from the hydraulic pneumatic pump body 1. The quick-connect interface 14 is installed at the end of the second sealing cylinder 13 away from the first sealing cylinder 12. The filter cylinder 15 is detachably installed on the inner wall of the first sealing cylinder 12 near the hydraulic pneumatic pump body 1. Sealing components are provided on the side walls of the second sealing cylinder 13 and the first sealing cylinder 12 that are close to each other. Anti-slip components are provided on the outer side walls of the first sealing cylinder 12 and the second sealing cylinder 13. During operation, the filter cylinder 15 is installed inside the first sealing cylinder 12, and the second sealing cylinder 13 is screwed onto the end of the first sealing cylinder 12. Compressed air is connected to the quick-connect interface 14 through a high-pressure pipe, and the compressed air passes through the filter cylinder 15. After filtration, the air enters the hydraulic pneumatic pump body 1, providing a drive source for the hydraulic pneumatic pump body 1. During routine maintenance, the second sealing cylinder 13 is unscrewed from the first sealing cylinder 12, the filter cylinder 15 is replaced or cleaned, and then reset. Through the above structure, the compressed air enters the hydraulic pneumatic pump body 1 after being filtered by the filter cylinder 15, forming the air intake filtration structure of the hydraulic pneumatic pump body 1. This achieves the function of filtering the compressed air entering the hydraulic pneumatic pump body 1, solving the problem of impurities or dust entering the hydraulic pneumatic pump body 1 with the compressed air, causing abnormal wear of the internal parts of the hydraulic pneumatic pump body 1. This improves the smoothness of the internal moving parts of the hydraulic pneumatic pump body 1 during operation, reduces the situation of excessive gaps caused by abnormal wear of the internal parts of the hydraulic pneumatic pump body 1, and increases the airtightness of the hydraulic pneumatic pump body 1.

[0026] like Figure 2 and Figure 3As shown, the locking assembly includes a fastening rod 2, a fastening nut 21, and a fixing block 22. The fastening rod 2 is rotatably connected to the outer wall of the first sealing cylinder 12. Multiple sets of fastening rods 2 are provided on the outer wall of the first sealing cylinder 12 and are evenly distributed on the outer wall of the first sealing cylinder 12. The fastening nut 21 is threadedly connected to the outer wall of the fastening rod 2 away from the first sealing cylinder 12. The fixing block 22 is fixedly connected to the outer wall of the second sealing cylinder 13. Multiple sets of fixing blocks 22 are provided on the outer wall of the second sealing cylinder 13 and are evenly distributed on the outer wall of the second sealing cylinder 13. A rubber pad is fixedly connected to the side wall of the fastening nut 21 near the first sealing cylinder 12. During operation, after the second sealing cylinder 13 is combined with the first sealing cylinder 12, the fastening rod 2 is rotated to lock the fastening rod 2 in the middle of the fixing block 22. The fastening nut 21 is then tightened. 1. The fastening nut 21 contacts the side wall of the fixing block 22, causing the rubber pad on the side wall of the fastening nut 21 to press against the fixing block 22, thus fastening the second sealing cylinder 13 and the first sealing cylinder 12 together. When disassembling the second sealing cylinder 13 and the first sealing cylinder 12, loosen the fastening nut 21 and rotate the fastening rod 2 to disengage the fastening rod 2 from the fixing block 22. Through the above structure, the setting of tightening the fastening nut 21 to press against the fixing block 22 and combining the second sealing cylinder 13 and the first sealing cylinder 12 together forms a locking structure for the first sealing cylinder 12 and the second sealing cylinder 13, realizing the function of connecting the first sealing cylinder 12 and the second sealing cylinder 13 together, increasing the stability of the first sealing cylinder 12 and the second sealing cylinder 13 after combination, and reducing the possibility of the first sealing cylinder 12 and the second sealing cylinder 13 becoming loose and leaking due to air pressure impact.

[0027] like Figure 2 and Figure 3 As shown, the slag discharge assembly includes a manual valve 3 and a slag discharge valve 31. The manual valve 3 is fixedly connected between the first sealing cylinder 12 and the air inlet 11. The slag discharge valve 31 is fixedly connected to the outer wall of the first sealing cylinder 12. During operation, impurities in the compressed air are filtered by the filter cylinder 15 and remain inside the first sealing cylinder 12 and the second sealing cylinder 13. When slag discharge is required, the manual valve 3 is closed and the slag discharge valve 31 is opened. Compressed air enters the first sealing cylinder 12 and the second sealing cylinder 13 and is discharged through the slag discharge valve 31. When the compressed air is discharged, impurities or foreign objects in the first sealing cylinder 12 and the second sealing cylinder 13 flow out with the air, flushing out the impurities inside the first sealing cylinder 12 and the second sealing cylinder 13. Through the above structure, the setting of closing the manual valve 3 and opening the slag discharge valve 31 to discharge the impurities in the first sealing cylinder 12 and the second sealing cylinder 13 with the compressed air forms a filter slag discharge structure, realizing the function of discharging the impurities accumulated in the first sealing cylinder 12 and the second sealing cylinder 13, improving the convenience of impurity cleaning, and reducing the cumbersome steps of disassembling parts during slag discharge.

[0028] like Figure 4 and Figure 5As shown, the sealing assembly includes a first sealing ring 4 and a second sealing ring 41. The first sealing ring 4 is fixedly connected to the end of the second sealing cylinder 13 near the first sealing cylinder 12. The second sealing ring 41 is fixedly connected to the inner wall of the first sealing cylinder 12. During operation, when the second sealing cylinder 13 is screwed to the end of the first sealing cylinder 12, the end of the second sealing cylinder 13 near the hydraulic pneumatic pump body 1 contacts and presses against the second sealing ring 41, and the end of the first sealing cylinder 12 near the quick-connect interface 14 contacts and presses against the first sealing ring 4, thus sealing the first sealing cylinder 12 and the second sealing cylinder 13. Through the above structure, the first sealing ring 4 and the second sealing ring 41 seal the first sealing cylinder 12 and the second sealing cylinder 13, forming a sealing structure of the first sealing cylinder 12 and the second sealing cylinder 13. This achieves the function of sealing when the first sealing cylinder 12 and the second sealing cylinder 13 are combined, solves the problem of poor sealing between the first sealing cylinder 12 and the second sealing cylinder 13, improves the sealing performance of the device, reduces leakage between the first sealing cylinder 12 and the second sealing cylinder 13, and improves the stability of compressed air pressure.

[0029] like Figure 2 As shown, the anti-slip assembly includes a pair of anti-slip rings 5; the anti-slip rings 5 ​​are respectively fixedly connected to the side walls of the second sealing cylinder 13 and the first sealing cylinder 12 that are close to each other; during operation, when the second sealing cylinder 13 or the first sealing cylinder 12 is turned, the hand comes into contact with the anti-slip rings 5, and the anti-slip rings 5 ​​increase the friction between the hand and the sealing cylinder; through the above structure, the setting of the hand contacting the anti-slip rings 5 ​​to turn the sealing cylinder forms an anti-slip structure for the sealing cylinder, improving the convenience of disassembling and assembling the sealing cylinder, and reducing the slippage that occurs when turning the sealing cylinder.

[0030] like Figure 4 and Figure 5 As shown, the inner walls of the first sealing cylinder 12 and the second sealing cylinder 13 are coated with alloy material. During operation, the interior of the first sealing cylinder 12 and the second sealing cylinder 13 is coated with alloy material, which improves the wear resistance of the inner walls of the first sealing cylinder 12 and the second sealing cylinder 13, reduces the possibility of impurities or dust scratching the inner walls of the sealing cylinders, and improves the service life of the components.

[0031] Before use, the filter assembly is installed at the end of the air inlet 11 of the hydraulic pneumatic pump body 1. Compressed air is connected to the filter assembly, and the locking assembly is used to fix the filter assembly. When external compressed air enters the hydraulic pneumatic pump body 1, the filter assembly filters the incoming air, blocking dust or impurities in the compressed air. The filtered air enters the hydraulic pneumatic pump body 1, driving the hydraulic pneumatic pump body 1 to work. After long-term operation, impurities accumulate inside the filter assembly. The slag discharge assembly is opened to discharge the impurities from the filter assembly. The filter cylinder 15 is installed inside the first sealing cylinder 12, and the second sealing cylinder 13 is screwed onto the end of the first sealing cylinder 12. Compressed air is connected to quick-connect interface 14 via a high-pressure pipeline. After being filtered by filter cartridge 15, the compressed air enters the hydraulic pneumatic pump body 1, providing a drive source for the hydraulic pneumatic pump body 1. During routine maintenance, the second sealing cartridge 13 is unscrewed from the first sealing cartridge 12, the filter cartridge 15 is replaced or cleaned, and then reset. After the second sealing cartridge 13 and the first sealing cartridge 12 are combined, the fastening rod 2 is rotated to lock the fastening rod 2 in the middle of the fixing block 22. The fastening nut 21 is then tightened, and the fastening nut 21 contacts the side wall of the fixing block 22, causing the rubber pad on the side wall of the fastening nut 21 to press against the fixing block 22, thus fastening the second sealing cartridge 13 and the first sealing cartridge 12 together. When disassembling the second sealing cylinder 13 and the first sealing cylinder 12, loosen the fastening nut 21 and rotate the fastening rod 2 to disengage the fastening rod 2 from the fixing block 22. Impurities in the compressed air, after being filtered by the filter cylinder 15, remain inside the first sealing cylinder 12 and the second sealing cylinder 13. When slag discharge is required, close the manual valve 3 and open the slag discharge valve 31. Compressed air enters the first sealing cylinder 12 and the second sealing cylinder 13 and is discharged through the slag discharge valve 31. When the compressed air is discharged, impurities or foreign objects inside the first sealing cylinder 12 and the second sealing cylinder 13 flow out with the air, flushing out the impurities inside the first sealing cylinder 12 and the second sealing cylinder 13. The second sealing cylinder 13 is screwed onto the first sealing cylinder 12. When the end of cylinder 12 is closed, the end of the second sealing cylinder 13 near the hydraulic pneumatic pump body 1 contacts and presses against the second sealing ring 41, and the end of the first sealing cylinder 12 near the quick-connect interface 14 contacts and presses against the first sealing ring 4, thus sealing the first sealing cylinder 12 and the second sealing cylinder 13. When the second sealing cylinder 13 or the first sealing cylinder 12 is turned, the hand contacts the anti-slip ring 5, which increases the friction between the hand and the sealing cylinder. The interior of the first sealing cylinder 12 and the second sealing cylinder 13 is coated with alloy material, which improves the wear resistance of the inner walls of the first sealing cylinder 12 and the second sealing cylinder 13, reduces the possibility of impurities or dust scratching the inner walls of the sealing cylinder, and improves the service life of the parts.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pneumatic pump, comprising a hydraulic pneumatic pump body (1) and an air inlet (11); characterized in that: The air inlet (11) is fixedly connected to the side wall of the hydraulic pneumatic pump body (1); a filter assembly is installed at the end of the air inlet (11) away from the hydraulic pneumatic pump body (1); a locking assembly is provided for the air inlet (11) through the filter assembly; and a slag discharge assembly is provided for the air inlet (11) through the filter assembly.

2. A hydraulic pneumatic pump according to claim 1, characterized in that: The filter assembly includes a first sealing cylinder (12), a second sealing cylinder (13), a quick connector (14), and a filter cylinder (15); the first sealing cylinder (12) is installed at the end of the air inlet (11); the second sealing cylinder (13) is threadedly connected to the end of the first sealing cylinder (12) away from the hydraulic pneumatic pump body (1); the quick connector (14) is installed at the end of the second sealing cylinder (13) away from the first sealing cylinder (12); the filter cylinder (15) is detachably installed on the inner side wall of the first sealing cylinder (12) near the hydraulic pneumatic pump body (1); a sealing assembly is provided on the side walls of the second sealing cylinder (13) and the first sealing cylinder (12) that are close to each other; and an anti-slip assembly is provided on the outer side walls of the first sealing cylinder (12) and the second sealing cylinder (13).

3. A hydraulic pneumatic pump according to claim 2, characterized in that: The locking assembly includes a fastening rod (2), a fastening nut (21), and a fixing block (22); the fastening rod (2) is rotatably connected to the outer wall of the first sealing cylinder (12); multiple sets of the fastening rod (2) are provided on the outer wall of the first sealing cylinder (12), and are evenly distributed on the outer wall of the first sealing cylinder (12); the fastening nut (21) is threadedly connected to the outer wall of the fastening rod (2) away from the first sealing cylinder (12); the fixing block (22) is fixedly connected to the outer wall of the second sealing cylinder (13); multiple sets of the fixing block (22) are provided on the outer wall of the second sealing cylinder (13), and are evenly distributed on the outer wall of the second sealing cylinder (13); a rubber pad is fixedly connected to the side wall of the fastening nut (21) near the first sealing cylinder (12).

4. A hydraulic pneumatic pump according to claim 2, characterized in that: The slag discharge assembly includes a manual valve (3) and a slag discharge valve (31); the manual valve (3) is fixedly connected between the first sealing cylinder (12) and the air inlet (11); the slag discharge valve (31) is fixedly connected to the outer wall of the first sealing cylinder (12).

5. A hydraulic pneumatic pump according to claim 2, characterized in that: The sealing assembly includes a first sealing ring (4) and a second sealing ring (41); the first sealing ring (4) is fixedly connected to the end of the second sealing cylinder (13) near the first sealing cylinder (12); the second sealing ring (41) is fixedly connected to the inner wall of the first sealing cylinder (12).

6. A hydraulic pneumatic pump according to claim 2, characterized in that: The anti-slip assembly includes a pair of anti-slip rings (5); the anti-slip rings (5) are respectively fixedly connected to the side walls of the second sealing cylinder (13) and the first sealing cylinder (12) that are close to each other.

7. A hydraulic pneumatic pump according to claim 2, characterized in that: The inner walls of the first sealing cylinder (12) and the second sealing cylinder (13) are coated with alloy material.

Images