Multi-cylinder multi-stage gas booster pump

Abstract

The utility model relates to the technical field of gas booster pumps, in particular to a multi-cylinder multi-stage gas booster pump which comprises a shell, one end of the shell is fixedly connected with a straight barrel, one side of the inner wall of the straight barrel is fixedly connected with a piston sleeve, a piston is attached to the inner wall of the piston sleeve, one end of the piston is fixedly connected with a piston rod, and the other end of the piston is fixedly connected with a piston rod. One side of the outer wall of the piston rod is in clearance fit with the inner wall of one end of the shell, and an annular plate is attached to one end of the piston rod. Through cooperation of a shell, a cylinder cover, a straight barrel, a piston sleeve, a piston, a piston rod, an annular plate, a sliding rod and a dismounting structure, a nut is rotated, the nut is moved out of the outer wall of a lead screw, the lead screw is moved upwards, the lead screw is moved out of the inner walls of a curved block and the piston rod, a bolt is rotated, the bolt is moved out of the inner wall of the cylinder cover, the cylinder cover is taken down, and the piston is moved leftwards; and the piston is taken out from the inner wall of the straight cylinder, so that a worker can conveniently disassemble the piston and replace the piston.

Description

Technical Field

[0001] The utility model relates to the technical field of gas booster pumps, in particular to a multi-cylinder multi-stage gas booster pump. Background Art

[0002] Pneumatic booster pumps use low-pressure gas at the large-area piston end to drive and generate high-pressure fluid at the small-area piston end. They can be used to compress air and other gases. The output air pressure can be adjusted steplessly by the driving air pressure.

[0003] There is an existing multi-cylinder multi-stage gas booster pump (application number: 202320906456.9) which realizes multi-stage pressure generation by connecting multiple cylinders in series, which can improve the boosting range, and connecting multiple cylinders in parallel can improve the pressure generation efficiency. It also has the characteristics of high integration and high pressure generation efficiency. The above-mentioned problem still exists. When the gas booster pump is used, the piston inside the gas booster pump will move back and forth in the piston sleeve. At this time, the piston will produce a certain amount of friction with the piston sleeve. When the piston is damaged, it is inconvenient for the staff to disassemble the piston, and then it is inconvenient for the staff to replace the piston. When the gas booster pump is in use, a cylinder cover will be installed on the gas booster pump. At this time, the cylinder cover connection position needs to be sealed, which is not convenient for double sealing of the cylinder cover position. The sealing effect is poor. When a single sealing ring is damaged, leakage is prone to occur. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, such as it is inconvenient for workers to disassemble the piston, and then it is inconvenient for workers to replace the piston, it is inconvenient to perform double sealing work on the cylinder cover position, the sealing effect is poor, and leakage is likely to occur when a single sealing ring is damaged. A multi-cylinder multi-stage gas booster pump is proposed.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A multi-cylinder multi-stage gas booster pump is designed, including a shell, one end of the shell is fixedly connected to a straight cylinder, one side of the inner wall of the straight cylinder is fixedly connected to a piston sleeve, the inner wall of the piston sleeve is fitted with a piston, one end of the piston is fixedly connected to a piston rod, one side of the outer wall of the piston rod is gap-fitted with the inner wall of one end of the shell, one end of the piston rod is fitted with an annular plate, a sliding rod is fixedly connected to the lower side of one side of the inner wall of the shell, and a disassembly structure is provided on one side of the sliding rod.

[0007] Preferably, the disassembly structure includes a curved block, the lower inner wall of the curved block is gap-fitted with the outer wall of the sliding rod, the upper side of the curved block is fixedly connected to the lower side of the annular plate, the inner wall of one side of the curved block and the inner wall of one side of the piston rod are gap-fitted with a screw rod, and the lower outer wall of the screw rod is threadedly connected with a nut.

[0008] Preferably, a round rod is fitted in the inner wall gap of the annular plate, the top of the round rod is fixedly connected to the round plate, and the top of the round plate is fixedly connected to the second gear.

[0009] Preferably, the upper portion of the outer wall of the gear 2 is rotatably connected to the top inner wall of the shell via a bearing, one side of the gear 2 is meshedly connected to the gear 1, and the upper portion of the outer wall of the gear 1 is rotatably connected to the shell via a bearing.

[0010] Preferably, the bottom of the shell is fixedly connected to the top of the housing, the top of the gear 1 is fixedly connected to the output end of the motor, and the bottom of the motor is fixedly connected to one side of the top of the shell.

[0011] Preferably, the inner wall of one end of the straight cylinder is threadedly connected to the cylinder cover, a rubber ring is fitted on one end of the cylinder cover, and the other end of the rubber ring is tightly fitted with one end of the straight cylinder, a rubber sleeve is tightly fitted on one side of the outer wall of the cylinder cover, and the outer wall of the rubber sleeve is fixedly connected to the inner wall of one end of the straight cylinder.

[0012] The multi-cylinder multi-stage gas booster pump proposed by the utility model has the following beneficial effects: through the cooperation of the housing, cylinder cover, straight cylinder, piston sleeve, piston, piston rod, annular plate, sliding rod and disassembly structure, the device can be used by rotating the nut to remove the nut from the outer wall of the screw rod, moving the screw rod upward to remove the screw rod from the inner wall of the curved block and the piston rod, rotating the bolt to remove the bolt from the inner wall of the cylinder cover, removing the cylinder cover, moving the piston to the left to remove the piston from the inner wall of the straight cylinder, so that the staff can easily disassemble and replace the piston;

[0013] Through the cooperation of the cylinder cover, straight cylinder, rubber sleeve and rubber ring, when the device is in use, the cylinder cover can be inserted into the inner wall of one end of the straight cylinder. At this time, the cylinder cover and the straight cylinder clamp the rubber ring, and at the same time the rubber sleeve fits tightly with one side of the outer wall of the cylinder cover. The rubber ring and the rubber sleeve realize double sealing, which is convenient for double sealing of the cylinder cover position, improves the sealing effect, and avoids leakage when a single sealing ring is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the shell, straight cylinder and outer shell structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the circular plate, round rod and annular plate structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the rubber ring, cylinder cover and rubber sleeve structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the screw rod, nut and piston rod of the utility model;

[0019] Figure 6 This is a structural diagram of gear 1, motor and gear 2 of the utility model.

[0020] In the figure: 1. Housing, 2. Disassembly structure, 2a1. Screw rod, 2a2. Nut, 2a3. Curved block, 2b1. Straight block, 3. Rubber ring, 4. Gear 1, 5. Motor, 6. Gear 2, 7. Cylinder head, 8. Straight cylinder, 9. Piston sleeve, 10. Piston, 11. Piston rod, 12. Round plate, 13. Sliding rod, 14. Round rod, 15. Ring plate, 16. Housing, 17. Rubber sleeve. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Example 1:

[0023] Refer to the attached Figure 1-6 : In this embodiment, a multi-cylinder multi-stage gas booster pump includes a shell 1, one end of the shell 1 is fixedly connected to a straight cylinder 8, the rear end of the straight cylinder 8 is equipped with two intake one-way valves, the front end of the straight cylinder 8 is equipped with two exhaust one-way valves, one side of the inner wall of the straight cylinder 8 is fixedly connected to a piston sleeve 9, the inner wall of the piston sleeve 9 is fitted with a piston 10, one end of the piston 10 is fixedly connected to a piston rod 11, one side of the outer wall of the piston rod 11 is gapped with the inner wall of one end of the shell 1, and a sealing ring is fixedly connected to the inner wall of one end of the shell 1. The piston rod 11 can move on the inner wall of the sealing ring and ensure sealing during the movement. One end of the piston rod 11 is fitted with an annular plate 15, and a sliding rod 13 is fixedly connected to the lower side of the inner wall of the shell 1. The inner wall gap of the annular plate 15 is fitted with a round rod 14. When the round rod 14 is forced to move left and right, it can drive the annular plate 15 to move left and right. The top of the rod 14 is fixedly connected to the circular plate 12, and the top of the circular plate 12 is fixedly connected to the gear 2 6. The bottom of the shell 16 is fixedly connected to the top of the shell 1, and the top of the gear 1 4 is fixedly connected to the output end of the motor 5. The model of the motor 5 is determined according to the actual usage. The bottom of the motor 5 is fixedly connected to one side of the top of the shell 16. The inner wall of one end of the straight cylinder 8 is threadedly connected to the cylinder cover 7 by a bolt. One end of the cylinder cover 7 is fitted with a rubber ring 3, and the other end of the rubber ring 3 is tightly fitted with one end of the straight cylinder 8. A rubber sleeve 17 is tightly fitted on one side of the outer wall of the cylinder cover 7. The rubber sleeve 17 and the rubber ring 3 play a sealing role. The outer wall of the rubber sleeve 17 is fixedly connected to the inner wall of one end of the straight cylinder 8. A disassembly structure 2 is provided on one side of the slide rod 13. The disassembly structure 2 facilitates the staff to disassemble the piston 10 and facilitates the staff to replace the piston 10.

[0024] The disassembly structure 2 includes a curved block 2a3, and the lower inner wall of the curved block 2a3 is gap-fitted with the outer wall of the slide rod 13. The slide rod 13 plays a limiting role when the curved block 2a3 moves left and right under force. The upper side of the curved block 2a3 is fixedly connected to the lower side of the annular plate 15. The inner wall of one side of the curved block 2a3 and the inner wall of one side of the piston rod 11 are gap-fitted with a screw rod 2a1. The lower outer wall of the screw rod 2a1 is threadedly connected with a nut 2a2, which makes it convenient for the staff to disassemble the piston 10 and replace the piston 10.

[0025] Working principle:

[0026] When boosting gas:

[0027] Insert the cylinder cover 7 into the inner wall of one end of the straight cylinder 8. At this time, the cylinder cover 7 and the straight cylinder 8 clamp the rubber ring 3. At the same time, the rubber sleeve 17 fits tightly against one side of the outer wall of the cylinder cover 7. The rubber ring 3 and the rubber sleeve 17 realize double sealing. The motor 5 starts to work. The motor 5 drives the gear 1 4 to rotate. The gear 1 4 drives the gear 2 6 to rotate. The gear 2 6 drives the circular plate 12 to rotate. The circular plate 12 drives the round rod 14 to rotate. The round rod 14 drives the annular plate 15 to move left and right. The annular plate 15 drives the curved block 2a3 to move left and right, thereby causing the piston rod 11 to drive the piston 10 to move left and right. When the piston 10 is forced to move inward, it squeezes the gas inside, causing the gas inside to be discharged from the one-way exhaust valve in the center. At the same time, the gas enters the interior of the straight cylinder 8 through the intake one-way valve on the outside of the rear end of the straight cylinder 8. When the piston 10 is forced to move outward, it squeezes the gas outside, causing the gas to be discharged through the exhaust one-way valve on the outside of the front end of the straight cylinder 8. The left and right movement of the piston 10 can squeeze and pressurize the gas on the left and right sides of the straight cylinder 8 respectively. When in use, the exhaust end of the straight cylinder 8 on one side is connected to the intake end of the straight cylinder 8 on the other side, thereby realizing multi-stage and multi-cylinder pressurization of the gas.

[0028] When the piston 10 is damaged:

[0029] Turn the bolt to remove it from the front end baffle of the housing 1, turn the nut 2a2 to move the nut 2a2 out from the outer wall of the screw rod 2a1, move the screw rod 2a1 upward to move it out from the inner wall of the curved block 2a3 and the piston rod 11, turn the bolt to move it out from the inner wall of the cylinder head 7, remove the cylinder head 7, move the piston 10 to the left, and take the piston 10 out from the inner wall of the straight cylinder 8, so that the staff can disassemble the piston 10 and replace the piston 10.

[0030] Example 2:

[0031] Refer to the attached Figure 1-6: In this embodiment, a multi-cylinder multi-stage gas booster pump, in which the disassembly structure 2 can also include a straight block 2b1, one end of the straight block 2b1 on the left and right sides is respectively fixedly connected to the outer side of one end of the rubber ring 3, and the outer walls of the straight blocks 2b1 on the left and right sides are respectively gap-matched with the outer groove of one end of the cylinder cover 8 and the outer groove of one end of the straight cylinder 8.

[0032] Working principle:

[0033] Insert the straight block 2b1 into the groove of the cylinder cover 7 and the groove of the straight cylinder 8 respectively, thereby realizing the positioning of the rubber ring 3 and preventing the rubber ring 3 from being offset and affecting the sealing effect.

[0034] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A multi-cylinder multi-stage gas booster pump, comprising a housing (1), characterized in that: One end of the housing (1) is fixedly connected to a straight cylinder (8), one side of the inner wall of the straight cylinder (8) is fixedly connected to a piston sleeve (9), the inner wall of the piston sleeve (9) is fitted with a piston (10), one end of the piston (10) is fixedly connected to a piston rod (11), one side of the outer wall of the piston rod (11) is gap-fitted with the inner wall of one end of the housing (1), one end of the piston rod (11) is fitted with an annular plate (15), and a sliding rod (13) is fixedly connected to the lower side of one side of the inner wall of the housing (1), and a disassembly structure (2) is provided on one side of the sliding rod (13); The disassembly structure (2) includes a curved block (2a3), the lower inner wall of the curved block (2a3) is gap-fitted with the outer wall of the sliding rod (13), the upper side of the curved block (2a3) is fixedly connected to the lower side of the annular plate (15), the inner wall of one side of the curved block (2a3) and the inner wall of one side of the piston rod (11) are gap-fitted with a screw rod (2a1), and the lower outer wall of the screw rod (2a1) is threadedly connected with a nut (2a2).

2. A multi-cylinder multi-stage gas booster pump according to claim 1, characterized in that: The inner wall gap of the annular plate (15) is fitted with a round rod (14), the top of the round rod (14) is fixedly connected to the circular plate (12), and the top of the circular plate (12) is fixedly connected to the gear 2 (6).

3. A multi-cylinder multi-stage gas booster pump according to claim 2, characterized in that: The upper portion of the outer wall of the gear 2 (6) is rotatably connected to the top inner wall of the housing (1) via a bearing, one side of the gear 2 (6) is meshedly connected to the gear 1 (4), and the upper portion of the outer wall of the gear 1 (4) is rotatably connected to the housing (16) via a bearing.

4. The multi-cylinder multi-stage gas booster pump according to claim 3, characterized in that: The bottom of the housing (16) is fixedly connected to the top of the shell (1), the top of the gear 1 (4) is fixedly connected to the output end of the motor (5), and the bottom of the motor (5) is fixedly connected to one side of the top of the housing (16).

5. The multi-cylinder multi-stage gas booster pump according to claim 4, characterized in that: The inner wall of one end of the straight cylinder (8) is threadedly connected to the cylinder cover (7) through a bolt, a rubber ring (3) is fitted on one end of the cylinder cover (7), and the other end of the rubber ring (3) is tightly fitted on one end of the straight cylinder (8), and a rubber sleeve (17) is tightly fitted on one side of the outer wall of the cylinder cover (7), and the outer wall of the rubber sleeve (17) is fixedly connected to the inner wall of one end of the straight cylinder (8).

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