A sealing structure for a high-pressure pump

By installing a sealing component and an internal sound-absorbing structure between the high-pressure pump and the connecting pipeline, the sealing and noise problems of the high-pressure pump are solved, achieving efficient sealing and noise reduction.

CN224432824UActive Publication Date: 2026-06-30NANJING YALONG PETROCHEMICAL EQUIP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING YALONG PETROCHEMICAL EQUIP TECH CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-30

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  • Figure CN224432824U_ABST
    Figure CN224432824U_ABST
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Abstract

This utility model discloses a sealing structure for a high-pressure pump, including a motor body and connecting pipes. Two sets of connecting pipes are included. A noise reduction component is fixedly installed on one side surface of the motor body, and a high-pressure pump body is fixedly connected to the other side surface of the motor body. The high-pressure pump body and the connecting pipes are both fixedly connected by sealing components. Two sets of sealing components are also included. A sound-absorbing structure is embedded inside the high-pressure pump body. Each sealing component includes a first fixing ring, a pressure plate, a connecting ring, a first sealing ring, a second sealing ring, a first screw hole, and a fixing bolt. A connecting ring is fixedly installed on one side surface of the first fixing ring, and a first sealing ring is embedded inside the connecting ring on one side surface of the first fixing ring. This sealing structure for a high-pressure pump improves the sealing performance of the connection between the high-pressure pump and the pipe, and also absorbs sound from the high-pressure pump.
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Description

Technical Field

[0001] This utility model relates to the field of high-pressure pumps, and in particular to a sealing structure for a high-pressure pump. Background Technology

[0002] High-pressure pumps are devices that provide high-pressure power for high-pressure jet grouting cement slurry. They are used for foundation reinforcement in buildings, highways, etc., and can also be used for high-pressure water jet to assist in rock breaking and coal extraction, fluid supply for underground hydraulic props, pumping high-pressure water with hydraulically expandable metal anchor bolts, and dredging, cleaning, and clearing of large underground pipelines.

[0003] A high-pressure pump with noise reduction function, as described in patent application CN201821592047.1, "includes a motor body, a high-pressure pump body, cable ties, and a noise reduction mechanism. A motor connecting plate is fixedly installed at one end of the motor body, and the noise reduction mechanism is sleeved at the other end of the motor body. A support base is fixedly installed at the bottom of the motor body, and a high-pressure pump body is located on one side of the motor body. A pump body connecting plate is fixedly installed at one end of the high-pressure pump body." Through the combined use of a noise-reducing shell, sound-absorbing tube, connecting shaft, sound-absorbing cotton, and bolts, the noise generated by the high-pressure pump during operation can be reduced, preventing the high-pressure pump from emitting noise during prolonged operation and affecting... The surrounding residents, through the combined use of the belt, fixing buckle and toothed block, can prevent the positioning screws inside the pump body connecting plate from falling off. Because the high-pressure pump will vibrate during operation, over time the positioning screws inside the pump body connecting plate will loosen and fall off from the inside of the pump body connecting plate. However, in use, the high-pressure pump needs to be connected to the pipeline through a flange, and the two are sealed by a gasket. When the bolts loosen, the sealing between the high-pressure pump and the pipeline weakens, which can easily lead to leakage. In addition, the noise reduction mechanism is connected to one side of the motor body, and the high-pressure pump still generates a lot of noise when it is running. Therefore, we propose a sealing structure for the high-pressure pump. Utility Model Content

[0004] The main objective of this invention is to provide a sealing structure for a high-pressure pump, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sealing structure for a high-pressure pump includes a motor body and connecting pipes, wherein there are two sets of connecting pipes. A noise reduction component is fixedly installed on one side surface of the motor body, and a high-pressure pump body is fixedly connected to the other side surface of the motor body. The high-pressure pump body and the connecting pipes are fixedly connected by sealing components, wherein there are two sets of sealing components. A sound-absorbing structure is embedded inside the high-pressure pump body.

[0007] Furthermore, the sealing assembly includes a first fixing ring, a pressure plate, a connecting ring, a first sealing ring, a second sealing ring, a first screw hole, and a fixing bolt. The connecting ring is fixedly installed on one side surface of the first fixing ring, and the first sealing ring is embedded in the connecting ring on one side surface of the first fixing ring. The second sealing ring is embedded in the inner surface of the connecting ring. The pressure plate is hinged to one side surface of the connecting ring. There are four sets of pressure plates, and each pressure plate has a first screw hole on one side surface.

[0008] Furthermore, the high-pressure pump body includes a pipe, a pump body, a mounting base, a second fixing ring, and a second screw hole. The pump body is fixedly mounted on the upper surface of the mounting base. The pipe is embedded in one side surface and the upper surface of the pump body. There are two sets of pipes. A second fixing ring is fixedly mounted on one side surface of each pipe. A second screw hole is opened on one side surface of each second fixing ring. There are four sets of second screw holes.

[0009] Furthermore, the first sealing ring contacts the second fixing ring, the second fixing ring is located between the first sealing ring and the second sealing ring, the fixing bolts are embedded in the first screw hole and the second screw hole, there are four sets of fixing bolts, the connecting pipes are respectively fixedly installed on one side surface of the first fixing ring, and the motor body is fixedly installed on one side surface of the pump body.

[0010] Furthermore, the sound-absorbing structure includes sound-absorbing cotton and a mounting plate, with the sound-absorbing cotton fixedly mounted on the upper surface of the mounting plate.

[0011] Furthermore, the mounting plate is fixedly mounted on the upper surface of the mounting base and located below the pump body.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0013] 1. The sealing components can seal the high-pressure pump and the connecting pipe, and even if the bolts loosen, there will be no leakage in a short time, resulting in high sealing performance;

[0014] 2. The sound-absorbing structure can absorb sound when the high-pressure pump is working, which helps to reduce the noise generated by the high-pressure pump. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the sealing structure of a high-pressure pump according to the present invention;

[0016] Figure 2 This is a cross-sectional view of the connecting pipe of the sealing structure of a high-pressure pump according to this utility model;

[0017] Figure 3This is a cross-sectional view of the pressure plate of the sealing structure of a high-pressure pump according to the present invention;

[0018] Figure 4 This is a detailed drawing of the main body of a high-pressure pump, illustrating the sealing structure of a high-pressure pump according to this utility model.

[0019] Figure 5 This utility model relates to a sealing structure for a high-pressure pump. Figure 2 A magnified view of the details at point A;

[0020] Figure 6 This utility model relates to a sealing structure for a high-pressure pump. Figure 3 A magnified view of the details at point B.

[0021] In the diagram: 1. Connecting pipe; 2. Sealing assembly; 201. First fixing ring; 202. Pressure plate; 203. Connecting ring; 204. First sealing ring; 205. Second sealing ring; 206. First screw hole; 207. Fixing bolt; 3. High-pressure pump body; 301. Pipe body; 302. Pump body; 303. Mounting base; 304. Second fixing ring; 305. Second screw hole; 4. Motor body; 5. Noise reduction assembly; 6. Sound absorption structure; 601. Sound-absorbing cotton; 602. Mounting plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Reference Figure 1-6 A sealing structure for a high-pressure pump includes a motor body 4 and a connecting pipe 1. The connecting pipe 1 consists of two sets. A noise reduction component 5 is fixedly installed on one side surface of the motor body 4. A high-pressure pump body 3 is fixedly connected to the other side surface of the motor body 4. The high-pressure pump body 3 and the connecting pipe 1 are fixedly connected by a sealing component 2. The sealing component 2 consists of two sets. A sound-absorbing structure 6 is embedded inside the high-pressure pump body 3.

[0024] In a preferred embodiment, the sealing assembly 2 includes a first fixing ring 201, a pressure plate 202, a connecting ring 203, a first sealing ring 204, a second sealing ring 205, a first screw hole 206, and a fixing bolt 207. The connecting ring 203 is fixedly installed on one side surface of the first fixing ring 201. The first sealing ring 204 is embedded in the connecting ring 203 on one side surface of the first fixing ring 201. The first sealing ring 204 provides initial sealing between the first fixing ring 201 and the second fixing ring 204. The second sealing ring 205 is embedded in the inner surface of the connecting ring 203. The second sealing ring 205 further seals between the second fixing ring 204 and the pressure plate 202, thereby improving the sealing effect. The pressure plate 202 is hinged to one side surface of the connecting ring 203. There are four sets of pressure plates 202. The pressure plates 202 are movably connected to one side of the connecting ring 203 by means of a rotating shaft or the like. The first screw hole 206 is opened on one side surface of each pressure plate 202.

[0025] In a preferred embodiment, the high-pressure pump body 3 includes a pipe body 301, a pump body 302, a mounting base 303, a second fixing ring 304, and a second screw hole 305. The pump body 302 is fixedly mounted on the upper surface of the mounting base 303. The pipe body 301 is embedded in one side surface and the upper surface of the pump body 302. There are two sets of pipe bodies 301. The pipe body 301 on the side of the pump body 302 is the water inlet, and the pipe body 301 on the surface of the pump body 302 is the water outlet. A second fixing ring 304 is fixedly mounted on one side surface of each pipe body 301. A second screw hole 305 is opened on one side surface of each second fixing ring 304. There are four sets of second screw holes 305.

[0026] In a preferred embodiment, the first sealing ring 204 contacts the second fixing ring 304, the second fixing ring 304 is located between the first sealing ring 204 and the second sealing ring 205, the fixing bolts 207 are embedded in the first screw hole 206 and the second screw hole 305, there are four sets of fixing bolts 207, the connecting pipe 1 is fixedly installed on one side surface of the first fixing ring 201, and the motor body 4 is fixedly installed on one side surface of the pump body 302.

[0027] During installation, the sealing assembly 2 is placed on one side of the pipe body 301, so that the first sealing ring 204 is between the first fixing ring 201 and the second fixing ring 304, and the second fixing ring 304 is between the first sealing ring 204 and the second sealing ring 205. The pressure plate 202 is rotated so that the pressure plate 202 is located on one side of the connecting ring 203. The fixing bolt 207 is then inserted into the first screw hole 206 and the second screw hole 305 and tightened. When the fixing bolt 207 becomes loose, the pressure plate 202 is limited by the action of the fixing bolt 207 and will not move away from the second sealing ring 205 in a short time. Therefore, the connecting pipe 1 and the pipe body 301 are always kept sealed.

[0028] In a preferred embodiment, the sound-absorbing structure 6 includes sound-absorbing cotton 601 and a mounting plate 602. The sound-absorbing cotton 601 is fixedly installed on the upper surface of the mounting plate 602. The sound-absorbing cotton 601 is a man-made inorganic fiber material, mainly used to absorb sound energy, reduce sound reflection and echo. When sound waves hit the surface of the sound-absorbing cotton 601, some of the energy is absorbed and converted into micro-vibration or heat energy, reducing sound reflection and lowering noise intensity and echo effect.

[0029] In a preferred embodiment, the mounting plate 602 is fixedly mounted on the upper surface of the mounting base 303 and located below the pump body 302.

[0030] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A sealing structure for a high-pressure pump, characterized in that: It includes a motor body (4) and a connecting pipe (1), the connecting pipe (1) consists of two sets, a noise reduction component (5) is fixedly installed on one side surface of the motor body (4), a high-pressure pump body (3) is fixedly connected to the other side surface of the motor body (4), the high-pressure pump body (3) and the connecting pipe (1) are fixedly connected by a sealing component (2), the sealing component (2) consists of two sets, and a sound-absorbing structure (6) is embedded inside the high-pressure pump body (3).

2. The sealing structure of a high-pressure pump according to claim 1, characterized in that: The sealing assembly (2) includes a first fixing ring (201), a pressure plate (202), a connecting ring (203), a first sealing ring (204), a second sealing ring (205), a first screw hole (206), and a fixing bolt (207). The connecting ring (203) is fixedly installed on one side surface of the first fixing ring (201). The first sealing ring (204) is embedded in the connecting ring (203) on one side surface of the first fixing ring (201). The second sealing ring (205) is embedded in the inner surface of the connecting ring (203). The pressure plate (202) is hinged to one side surface of the connecting ring (203). There are four sets of pressure plates (202). The first screw hole (206) is opened on one side surface of each pressure plate (202).

3. The sealing structure of a high-pressure pump according to claim 2, characterized in that: The high-pressure pump body (3) includes a pipe body (301), a pump body (302), a mounting base (303), a second fixing ring (304), and a second screw hole (305). The pump body (302) is fixedly installed on the upper surface of the mounting base (303). The pipe body (301) is embedded on one side surface and the upper surface of the pump body (302). There are two sets of pipe bodies (301). The second fixing ring (304) is fixedly installed on one side surface of each pipe body (301). The second screw hole (305) is opened on one side surface of each second fixing ring (304). There are four sets of second screw holes (305).

4. The sealing structure of a high-pressure pump according to claim 3, characterized in that: The first sealing ring (204) contacts the second fixing ring (304), and the second fixing ring (304) is located between the first sealing ring (204) and the second sealing ring (205). The fixing bolts (207) are embedded in the first screw hole (206) and the second screw hole (305). There are four sets of fixing bolts (207). The connecting pipes (1) are fixedly installed on one side surface of the first fixing ring (201). The motor body (4) is fixedly installed on one side surface of the pump body (302).

5. The sealing structure of a high-pressure pump according to claim 4, characterized in that: The sound-absorbing structure (6) includes sound-absorbing cotton (601) and mounting plate (602), and the sound-absorbing cotton (601) is fixedly installed on the upper surface of the mounting plate (602).

6. The sealing structure of a high-pressure pump according to claim 5, characterized in that: The mounting plate (602) is fixedly mounted on the upper surface of the mounting base (303) and located below the pump body (302).

Citation Information

Patent Citations

  • High-pressure pump with noise reduction function

    CN208918811U