High-pressure plunger pump

Abstract

The utility model relates to the technical field of plunger pumps, and discloses a high-pressure plunger pump which comprises a mounting plate, a motor and a gear reducer are fixedly connected to the top of the mounting plate respectively, a shell is arranged on the left side of the top of the mounting plate, a cavity is fixedly connected to the front side of the shell, and a plurality of evenly-distributed drainage pipes are fixedly connected to the top of the cavity. The bottom of the cavity is fixedly connected with a plurality of evenly-distributed water suction pipes, sealing assemblies are arranged in the water drainage pipe and the water suction pipes, the bottom side of the shell is fixedly connected with two supporting frames, the bottoms of the supporting frames are fixedly connected with sliding blocks, and the interior of a mounting plate is slidably connected with two check blocks. According to the high-pressure plunger pump, the pedal drives the check block to move, so that the check block does not limit the movement of the sliding block any more, then the supporting frame can be taken out from the interior of the mounting plate, the high-pressure plunger pump is convenient to maintain, and the plunger moves to change the air pressure in the cavity, so that liquid enters or is discharged out of the cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a high-pressure plunger pump. Background Art

[0002] The plunger pump is a common positive displacement pump, mainly used for conveying liquids. The plunger pump achieves the suction and discharge of liquids through the reciprocating motion of the plunger in the cylinder. It has good sealing performance and high working pressure, and is suitable for liquid conveying needs in various industrial scenarios.

[0003] High-pressure plunger pumps are suitable for use in the petroleum, chemical, and fertilizer industries as process pumps, high-pressure water descaling in metallurgy and steel rolling mills, high-pressure water cleaning and descaling in construction, shipbuilding, sugar making, papermaking, and chemical industries, oil field water injection, boiler water supply, and as power sources for hydraulic machinery. They are also suitable for use in food and pharmaceutical industries where high-pressure liquids are required. The conveying medium is a fluid without solid particles.

[0004] The existing high-pressure plunger pump is installed in a specified position by multiple bolts. When the high-pressure plunger pump needs to be repaired, multiple bolts need to be rotated, resulting in low disassembly and assembly efficiency of the high-pressure plunger pump. Therefore, a high-pressure plunger pump is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a high-pressure plunger pump, which aims to improve the problem of low disassembly and assembly efficiency of the high-pressure plunger pump in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a high-pressure plunger pump, comprising a mounting plate, the top of the mounting plate is fixedly connected to a motor and a gear reducer respectively, a shell is provided on the left side of the top of the mounting plate, the front side of the shell is fixedly connected to a cavity, the top of the cavity is fixedly connected to a plurality of evenly distributed drainage pipes, the bottom of the cavity is fixedly connected to a plurality of evenly distributed suction pipes, sealing assemblies are provided inside the drainage pipes and the suction pipes, two support frames are fixedly connected to the bottom of the support frame, a slider is fixedly connected to the bottom of the support frame, two blocks are slidably connected to the inside of the mounting plate, the right side of the block abuts against the left side of the slider, the bottom of the block is fixedly connected to a limiting plate, the bottom side of the limiting plate is fixedly connected to a spring 1, and the bottom end of the spring 1 is fixedly connected to the inside of the mounting plate.

[0007] Through the above technical solution, the spring pushes the stopper to move and fix the support frame inside the mounting plate.

[0008] Furthermore, multiple sealing assemblies include a fixing plate, and multiple fixing plates are respectively fixedly connected to the inside of multiple drainage pipes and the suction pipes. Multiple evenly distributed through holes are opened inside the fixing plate. Spring 2 is fixedly connected to the bottom side of the fixing plate, and a ball core is fixedly connected to the bottom end of spring 2. Fixed rings are fixedly connected to the inside of the drainage pipe and the suction pipe, and the ball core is slidably connected to the middle of the fixing ring.

[0009] Through the above technical solution, the second spring pushes the ball core to be inserted into the interior of the fixing ring to block the flow of water.

[0010] Furthermore, two sliding grooves are provided inside the mounting plate, and the slider is slidably connected inside the sliding grooves.

[0011] Through the above technical solution, the slider slides inside the slide groove to limit the movement of the support frame.

[0012] Furthermore, a pedal is fixedly connected to the left side of the two limit plates.

[0013] Through the above technical solution, pressing the pedal can drive the two blocks to move toward the inside of the mounting plate.

[0014] Furthermore, a rotating shaft is rotatably connected inside the shell, and the right end of the rotating shaft and the motor driving end are respectively connected to the output end and the output end of the gear reducer through a coupling.

[0015] Through the above technical solution, the motor drives the shaft to rotate through the gear reducer.

[0016] Furthermore, a plurality of evenly distributed turntables are fixedly connected to the outer periphery of the rotating shaft, the right side of the turntable is rotatably connected to connecting rod 2, the front end of connecting rod 2 is rotatably connected to connecting rod 1, the front end of connecting rod 1 is rotatably connected to a plunger, and the plunger is slidably connected to the inside of the front side of the shell.

[0017] Through the above technical solution, the rotation of the rotating shaft can cause the turntable, the second connecting rod and the first connecting rod to drive the plunger to move.

[0018] Furthermore, a plurality of evenly distributed chambers are provided inside the cavity, and the front end of the plunger is slidably connected to the interior of the chambers.

[0019] Through the above technical solution, the sliding of the plunger inside the chamber can drive the change of the air pressure inside the cavity.

[0020] Furthermore, a rubber pad is fixedly connected to the outer periphery of the plunger.

[0021] Through the above technical solution, the rubber pad can increase the sealing performance of the plunger.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, a spring pushes the stopper to move and fixes the slider inside the mounting plate, thereby fixing the support frame and the housing. When the high-pressure plunger pump needs to be repaired, the pedal can be pressed to drive the stopper to move toward the inside of the mounting plate so that the stopper no longer restricts the movement of the slider. After that, the support frame can be removed from the inside of the mounting plate, thereby facilitating the maintenance of the high-pressure plunger pump.

[0024] 2. In the utility model, the motor drives the rotating shaft to rotate through the gear reducer, and the rotation of the rotating shaft drives the rotation of the turntable. The rotation of the turntable causes the connecting rod 2 and the connecting rod 1 to drive the plunger to move. When the plunger moves toward the inside of the shell, the space inside the chamber expands, forming a negative pressure. The upper ball core is sucked by the negative pressure and closes the upper fixed ring. The lower ball core floats up due to the negative pressure. The negative pressure is used to draw liquid into the chamber. The plunger moves into the chamber, the space inside the chamber is squeezed and reduced, the pressure increases, the upper ball core is pushed open, the lower ball core is pressed and closes the lower fixed ring, and the air pressure sends the liquid out. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a high-pressure plunger pump proposed by the utility model;

[0026] Figure 2 This is a structural schematic diagram of a mounting plate for a high-pressure plunger pump proposed in the present invention;

[0027] Figure 3 This is a structural schematic diagram of a housing of a high-pressure plunger pump proposed in the present utility model.

[0028] Legend:

[0029] 1. Support frame; 2. Pedal; 3. Cavity; 4. Suction pipe; 5. Mounting plate; 6. Motor; 7. Coupling; 8. Gear reducer; 9. Drain pipe; 10. Housing; 11. Slide; 12. Stopper; 13. Fixed plate; 14. Spring 1; 15. Limit plate; 16. Slider; 17. Fixed ring; 18. Spring 2; 19. Ball core; 20. Rubber pad; 21. Plunger; 22. Connecting rod 1; 23. Connecting rod 2; 24. Rotating shaft; 25. Turntable. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 2 The utility model provides an embodiment of a high-pressure plunger pump, including a mounting plate 5, the top of the mounting plate 5 is fixedly connected to the motor 6 and the gear reducer 8, a shell 10 is provided on the left side of the top of the mounting plate 5, the front side of the shell 10 is fixedly connected to the cavity 3, the top of the cavity 3 is fixedly connected to a plurality of evenly distributed drainage pipes 9, the bottom of the cavity 3 is fixedly connected to a plurality of evenly distributed suction pipes 4, the bottom side of the shell 10 is fixedly connected to two support frames 1, the bottom of the support frame 1 is fixedly connected to a slider 16, the inside of the mounting plate 5 is slidably connected to two blocks 12, the right side of the block 12 abuts against the left side of the slider 16, the bottom of the block 12 is fixedly connected to a limit plate 15, the bottom side of the limit plate 15 is fixedly connected to a spring 14, the bottom end of the spring 14 is fixedly connected to the inside of the mounting plate 5, two slide grooves 11 are provided inside the mounting plate 5, the slider 16 is slidably connected to the inside of the slide groove 11, and the left side of the two limit plates 15 is fixedly connected to the pedal 2.

[0032] Specifically, the mounting plate 5 is used to install the shell 10, the motor 6 and the gear reducer 8. The motor 6 can drive the high-pressure plunger pump to operate, and the gear reducer 8 can increase the torque at the output end of the motor 6. The cavity 3 is used to install the drain pipe 9 and the suction pipe 4. The liquid can enter the cavity 3 through the suction pipe 4, and the drain pipe 9 can discharge the liquid from the cavity 3. The support frame 1 is used to install the support shell 10, and the shell 10 can be installed to protect the internal structure. The slider 16 slides in the slide groove 11 to limit the movement of the support frame 1. The block 12 can be pushed by the spring 14 to block the movement of the slider 16. The limit plate 15 plays a role in limiting the movement of the block 12. Pressing the pedal 2 can press the block 12 into the mounting plate 5.

[0033] Reference Figure 1 and Figure 3 Sealing components are provided inside the drainage pipe 9 and the suction pipe 4, and multiple sealing components include a fixed plate 13. The multiple fixed plates 13 are respectively fixedly connected to the inside of the multiple drainage pipes 9 and the suction pipe 4. A plurality of evenly distributed through-holes are opened inside the fixed plate 13. A spring 2 18 is fixedly connected to the bottom side of the fixed plate 13, and a ball core 19 is fixedly connected to the bottom end of the spring 2 18. A fixing ring 17 is fixedly connected to the inside of the drainage pipe 9 and the suction pipe 4, and the ball core 19 is slidably connected to the middle of the fixing ring 17.

[0034] Specifically, the fixing plate 13 is used to install the second spring 18. A perforation is opened inside the fixing plate 13 so that liquid can pass through the fixing plate 13. The second spring 18 can push the ball core 19 to move. The ball core 19 is inserted into the fixing ring 17 to prevent the movement of liquid.

[0035] Reference Figure 1 and Figure 3The shell 10 is rotatably connected to a rotating shaft 24. The right end of the rotating shaft 24 and the driving end of the motor 6 are respectively connected to the output end and the output end of the gear reducer 8 through the coupling 7. A plurality of evenly distributed turntables 25 are fixedly connected to the outer periphery of the rotating shaft 24. The right side of the turntable 25 is rotatably connected to a connecting rod 23. The front end of the connecting rod 23 is rotatably connected to a connecting rod 1 22. The front end of the connecting rod 1 22 is rotatably connected to a plunger 21. The plunger 21 is slidably connected to the inside of the front side of the shell 10. A plurality of evenly distributed chambers are opened inside the cavity 3. The front end of the plunger 21 is slidably connected to the inside of the chamber. A rubber pad 20 is fixedly connected to the periphery of the plunger 21.

[0036] Specifically, the coupling 7 connects the rotating shaft 24, the motor 6 and the gear reducer 8 to each other. The motor 6 drives the rotating shaft 24 to move. The rotation of the rotating shaft 24 can drive the turntable 25 to rotate. The rotation of the turntable 25 drives the connecting rod 1 22 and the connecting rod 2 23 to rotate and move the plunger 21. The movement of the plunger 21 can change the air pressure inside the chamber so that the liquid enters or discharges the cavity 3. The rubber pad 20 is used to enhance the sealing of the shell 10.

[0037] Working principle: Insert the slider 16 into the chute 11 and push the support frame 1 to move so that the housing 10 is installed on the top of the mounting plate 5. When the slider 16 moves to the inside of the chute 11, the stopper 12 is pushed by the spring 14 to prevent the slider 16 from moving and fix the slider 16 inside the mounting plate 5. When the internal structure of the housing 10 needs to be repaired, press the pedal 2, and the pedal 2 drives the stopper 12 to move so that the stopper 12 is recovered to the inside of the mounting plate 5. After that, the support frame 1 can be moved again to remove the housing 10 from the top of the mounting plate 5. The motor 6 drives the inside of the housing 10 through the gear reducer 8. The rotating shaft 24 rotates, and the rotation of the rotating shaft 24 causes the turntable 25 to rotate. The rotation of the turntable 25 causes the connecting rod 1 22 and the connecting rod 2 23 to drive the plunger 21 to move. When the plunger 21 moves into the interior of the shell 10, the space in the chamber expands, forming a negative pressure. The upper ball core 19 is sucked by the negative pressure and closes the upper fixing ring 17. The lower ball core 19 floats up due to the negative pressure, and the negative pressure is used to draw the liquid into the chamber. The plunger 21 moves into the chamber, the space in the chamber is squeezed and reduced, and the pressure increases. The upper ball core 19 is pushed open, and the lower ball core 19 is pressed and closes the lower fixing ring 17, and the air pressure sends the liquid out.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-pressure plunger pump, comprising a mounting plate (5), characterized in that: The top of the mounting plate (5) is fixedly connected to a motor (6) and a gear reducer (8), respectively. A shell (10) is provided on the left side of the top of the mounting plate (5). The front side of the shell (10) is fixedly connected to a cavity (3). The top of the cavity (3) is fixedly connected to a plurality of evenly distributed drainage pipes (9). The bottom of the cavity (3) is fixedly connected to a plurality of evenly distributed suction pipes (4). A sealing assembly is provided inside the drainage pipes (9) and the suction pipes (4). The bottom side of the shell (10) is fixedly connected to two support frames (1). The bottom of the support frame (1) is fixedly connected to a slider (16). Two stoppers (12) are slidably connected inside the mounting plate (5). The right side of the stopper (12) abuts against the left side of the slider (16). The bottom of the stopper (12) is fixedly connected to a limiting plate (15). The bottom side of the limiting plate (15) is fixedly connected to a spring 1 (14). The bottom end of the spring 1 (14) is fixedly connected to the inside of the mounting plate (5).

2. A high-pressure plunger pump according to claim 1, characterized in that: The plurality of sealing assemblies each include a fixed plate (13), and the plurality of fixed plates (13) are respectively fixedly connected to the inside of the plurality of drain pipes (9) and the suction pipe (4), and a plurality of evenly distributed through holes are provided inside the fixed plate (13). A spring 2 (18) is fixedly connected to the bottom side of the fixed plate (13), and a ball core (19) is fixedly connected to the bottom end of the spring 2 (18). A fixed ring (17) is fixedly connected to the inside of the drain pipe (9) and the suction pipe (4), and the ball core (19) is slidably connected to the middle of the fixed ring (17).

3. A high-pressure plunger pump according to claim 1, characterized in that: Two sliding grooves (11) are provided inside the mounting plate (5), and the sliding block (16) is slidably connected inside the sliding grooves (11).

4. A high-pressure plunger pump according to claim 1, characterized in that: The left sides of the two limit plates (15) are fixedly connected with a pedal (2).

5. A high-pressure plunger pump according to claim 1, characterized in that: A rotating shaft (24) is rotatably connected inside the housing (10), and the right end of the rotating shaft (24) and the driving end of the motor (6) are respectively connected to the output end and the output end of the gear reducer (8) through a coupling (7).

6. A high-pressure plunger pump according to claim 5, characterized in that: The outer periphery of the rotating shaft (24) is fixedly connected to a plurality of evenly distributed rotating disks (25), the right side of the rotating disk (25) is rotatably connected to a second connecting rod (23), the front end of the second connecting rod (23) is rotatably connected to a first connecting rod (22), the front end of the first connecting rod (22) is rotatably connected to a plunger (21), and the plunger (21) is slidably connected to the interior of the front side of the housing (10).

7. A high-pressure plunger pump according to claim 6, characterized in that: A plurality of evenly distributed chambers are provided inside the cavity (3), and the front end of the plunger (21) is slidably connected inside the chambers.

8. The high-pressure plunger pump according to claim 6, characterized in that: A rubber pad (20) is fixedly connected to the outer periphery of the plunger (21).

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