Flow leaking stoppage device for piston pump

Abstract

The invention relates to the technical field of piston pump leaking stoppage, and discloses a flow leaking stoppage device for a piston pump, which comprises a leaking stoppage clamp, the leaking stoppage clamp comprises a first clamp component and a second clamp component which are symmetrically arranged, and the first clamp component and the second clamp component are in a T shape rotating 90 degrees anticlockwise. A vertical pipe and a transverse pipe are clamped in the first clamp component and the second clamp component, inner cavities are formed in the first clamp component and the second clamp component, the inner cavities form a complete closed cavity when the first clamp component and the second clamp component are combined, and a first rubber pad is fixedly connected to the inner ring shell wall of the first clamp component and the inner ring shell wall of the second clamp component. After the inner cavity is filled with cooling water, the leaking stoppage clamp forms a wrapping type cooling clamp, the cooling effect on the pump cavity is achieved, the possibility that the sealing effect is reduced and water leakage is caused due to the fact that the temperature of the pump body is too high and the rubber sealing piece is thermally deformed is reduced, the leakage risk is reduced, and the service life of the piston pump is prolonged.

Description

Technical Field

[0001] This invention relates to the field of piston pump leak sealing technology, and more specifically to a flow-based leak sealing device for piston pumps. Background Technology

[0002] Piston pumps, also known as electric reciprocating pumps, are structurally divided into single-cylinder and multi-cylinder types. Their main characteristic is high head. Piston pumps rely on the reciprocating motion of a piston to cause the pump chamber's working volume to change periodically, achieving liquid intake and discharge. Common sources of leakage in piston pumps include seals, mounting connections, the pump body itself, and indirect leaks caused by damage to other components. Damaged seals, connection misalignments, and sand holes or cracks in the pump body can all lead to leakage during operation. Therefore, this invention proposes a flow-based leak-sealing device for piston pumps, designed for emergency repair when leakage occurs.

[0003] Insufficient technology: In addition to the possibility of leakage due to defects such as sand holes and cracks in the pump body itself, if the pump body temperature is too high, the rubber seals may also undergo thermal deformation, thereby reducing the sealing effect and causing leakage. Most existing devices only repair existing cracks and breaks, while ignoring the potential wear risk that may cause leakage of components. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a flow sealing device for piston pumps to solve the problems existing in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flow sealing device for a piston pump, comprising a sealing clamp, wherein the sealing clamp includes a first clamp component and a second clamp component symmetrically arranged, the first clamp component and the second clamp component forming a "T" shape rotated 90 degrees counterclockwise, and having a vertical tube and a horizontal tube clamped inside, both the first clamp component and the second clamp component having an internal cavity, and when the two are combined, the internal cavity forms a complete and sealed cavity. Rubber pad 1 is fixedly connected to the inner shell wall of the first clamp component and the second clamp component. When the first clamp component and the second clamp component are fastened together, rubber pad 1 is tightly fitted to the outer side of the vertical tube and the horizontal tube. A first ear plate is fixedly connected to the left vertical shell wall of the first clamp component and the second clamp component, and a second ear plate is fixedly connected to the shell wall at the right angle on the right side. Rubber pad 2 is fixedly connected to the side of both the first ear plate and the second ear plate, and the rubber pad 2 on the same side is connected to the rubber pad 1 in a one-piece manner.

[0006] Furthermore, the interior of the vertical tube is symmetrically provided with movable plugs about the transverse centerline. A transverse tube is provided on the side of the vertical tube, and the vertical tube and the transverse tube are connected to each other to form a "T"-shaped pump chamber. A piston head is movably connected inside the transverse tube. A rubber ring is fixedly connected to the side of the piston head, and the tight fit between the rubber ring and the inner wall of the transverse tube is used to achieve a sealing effect in the pump chamber. A fixed seat is fixedly connected to the side of the piston head, and a connecting rod is movably connected through the fixed seat. The other end of the connecting rod is movably connected to the edge of the transmission device. The circular motion of the transmission device is converted into the linear reciprocating motion of the piston head through the connecting rod.

[0007] Furthermore, the transmission device includes a driven wheel, a rotating shaft, and a transmission wheel. The driven wheel, rotating shaft, and transmission wheel are mounted on a base. The driven wheel and transmission wheel are fixedly connected by the rotating shaft. The edge of the driven wheel is movably connected to one end of a connecting rod. In addition, the driven wheel and the transmission wheel are coaxial and rotate at the same angular velocity. The edge of the transmission wheel is movably connected to a transmission belt. The motor shaft of a power motor is movably connected inside the transmission belt. A base is fixedly connected to the side of the power motor.

[0008] Furthermore, the side of the first ear plate has four evenly arranged threaded holes for threaded connection of a first bolt. The rubber pad two, which is fixedly connected to the first ear plate, has four vertically evenly arranged through holes for the first bolt to pass through. When the first clamp component and the second clamp component are combined, the rubber pads two on both sides fit tightly together, the through holes on both sides are aligned, the first bolt is threaded inside, and the connection between the first clamp component and the second clamp component is tightened by threading a first nut on the opposite side.

[0009] Furthermore, the second ear plate has two symmetrical threaded holes on its side, and a second bolt is threadedly connected to them. The second rubber pad, which is fixedly connected to the second ear plate, has two symmetrical through holes on its side, which are in the same position and have the same diameter as the threaded holes on the second ear plate. When the first clamping component and the second clamping component are combined, the second rubber pads on both sides fit tightly together, the through holes on both sides are aligned, and the second bolt passes through the second ear plate and the second rubber pad that are aligned on both sides. On the opposite side, a second nut is threadedly connected to the second clamping component to tighten the connection between the first clamping component and the second clamping component.

[0010] Furthermore, the side of the rubber pad II on the side where the first ear plate is located is also provided with a square hole I that is consistent with the opening of the inner cavity, and the side of the rubber pad II on the side where the second ear plate is located is provided with a transverse square hole II that is consistent with the edge of the inner cavity. The two allow the inner cavity to be connected to form a complete cavity when the first clamping component and the second clamping component are combined and fixed.

[0011] Furthermore, a water inlet valve is fixedly connected to the bottom side of the first clamp component. The water inlet valve includes a valve body communicating with the inner cavity of the first clamp component, an elastic sealing element that closes the valve body, and a nut that is threadedly connected to the end of the valve body.

[0012] Furthermore, a water outlet valve is fixedly connected to the top side of the second clamp component, and the internal structure of the water outlet valve is the same as that of the water inlet valve.

[0013] The technical effects and advantages of this invention are as follows: 1. The present invention includes a leak-sealing clamp comprising a first clamp component and a second clamp component symmetrically arranged. A rubber pad is fixedly connected to the inner shell wall of both clamp components. The first clamp component and the second clamp component clamp the outside of the "T"-shaped pump cavity, using their pressure to fasten and seal the piston pump. The rubber pad inside the clamp fits tightly against the outside of the pump cavity, further sealing and sealing the leak. This helps to enhance the structural stability of the piston pump, while also sealing and sealing the leak, thus extending the service life of the piston pump.

[0014] 2. The present invention provides an inner cavity inside the leak-sealing clamp. After the inner cavity is filled with cooling water, the leak-sealing clamp forms a wrap-around cooling clamp, which has a cooling effect on the pump cavity. This reduces the possibility that the rubber seals of the pump body will deform due to excessive temperature, thereby reducing the sealing effect and causing water leakage. This helps to reduce the risk of leakage and extend the service life of the piston pump.

[0015] 3. The present invention provides an inlet valve at the top of the leak-sealing clamp component and an outlet valve at the bottom. Cooling water is injected through the inlet valve and the heated cooling water is discharged through the outlet valve on the other side. When changing the water, the water is injected and discharged at the same time, so that the cooling water accumulates in the inner cavity, and the cooling water that has absorbed heat can be discharged in time, which helps to reduce the loss when replacing the cooling water. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the leak-sealing clamp of the present invention; Figure 3 This is a schematic diagram of the split structure of one side of the No. 1 clamp component of the leak-stopping clamp of the present invention; Figure 4 This is a schematic diagram of the split structure of one side of the No. 2 clamp component of the leak-stopping clamp of the present invention; Figure 5 This is a schematic diagram of the transverse cross-sectional structure of the leak-sealing clamp of the present invention; Figure 6 This is a schematic diagram of the vertical cross-sectional structure of the horizontal component of the leak-sealing clamp of the present invention.

[0017] The attached diagram is labeled as follows: 1. Leak-sealing clamp; 101. Clamp component No. 1; 102. Clamp component No. 2; 103. Inner cavity; 104. Rubber pad one; 105. Ear plate No. 1; 1051. Bolt No. 1; 1052. Nut No. 1; 106. Ear plate No. 2; 1061. Bolt No. 2; 1062. Nut No. 2; 107. Rubber pad two; 1071. Through hole; 1072. Square hole one; 1073. Square hole two; 108. Water inlet valve; 1 081. Valve body; 1082. Elastic sealing element; 1083. Nut; 109. Water outlet valve; 2. Vertical pipe; 201. Movable plug; 3. Horizontal pipe; 4. Piston head; 401. Rubber ring; 402. Fixed seat; 403. Connecting rod; 5. Transmission device; 501. Driven wheel; 502. Rotating shaft; 503. Transmission wheel; 504. Transmission belt; 505. Base one; 6. Power motor; 601. Motor shaft; 602. Base two. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The flow sealing device for piston pumps involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 6 This invention provides a flow-stopping device for a piston pump, including a plugging clamp 1. The plugging clamp 1 includes a first clamp component 101 and a second clamp component 102 symmetrically arranged. The first clamp component 101 and the second clamp component 102 are in a "T" shape rotated 90 degrees counterclockwise. A vertical tube 2 and a horizontal tube 3 are clamped inside. Both the first clamp component 101 and the second clamp component 102 have an inner cavity 103. When the two are combined, the inner cavity 103 forms a complete and sealed cavity. The inner rings of the first clamp component 101 and the second clamp component 102... Rubber pad 104 is fixedly connected to the shell wall. When clamp component 101 and clamp component 102 are fastened together, rubber pad 104 is tightly attached to the outer side of the vertical tube 2 and the horizontal tube 3. Clamp component 101 and clamp component 102 are fixedly connected to the left vertical shell wall with ear plate 105. Clamp component 106 is fixedly connected to the shell wall at the right angle on the right side. Rubber pad 107 is fixedly connected to the side of ear plate 105 and ear plate 106. Rubber pad 107 on the same side is connected to rubber pad 104 in a one-piece manner.

[0020] In this embodiment, when the first clamp component 101 and the second clamp component 102, which are symmetrically arranged in the leak-sealing fixture 1, are combined, their internal shapes fit the outer sides of the vertical pipe 2 and the horizontal pipe 3. The vertical pipe 2 and the horizontal pipe 3 are connected, together forming a "T"-shaped pump chamber. The rubber gasket 104, which is fixedly connected inside the component, fits tightly against the outer side of the pump chamber, enclosing the piston pump chamber. This covers and presses the parts of the pump chamber side connection that are prone to leakage, achieving a leak-sealing effect. The first clamp component 101 and the second clamp component 102 are clamped in the "T". The outer side of the U-shaped pump chamber uses its pressure to secure and seal the piston pump. The rubber gasket inside fits tightly against the outside of the pump chamber, further sealing it. In addition, the inner cavity 103 inside the component is used to fill with cooling water. After the two components are combined, the inner cavity 103 forms a complete and sealed cavity. After filling with cooling water, it forms a wrap-around cooling clamp, which has a cooling effect on the pump chamber. This reduces the possibility of the rubber seals deforming due to excessive temperature, which would reduce the sealing effect and cause leakage.

[0021] Reference Figure 1 The vertical tube 2 has movable plugs 201 symmetrically arranged inside about the horizontal centerline. The vertical tube 2 has a horizontal tube 3 on its side, and the vertical tube 2 and the horizontal tube 3 are connected to each other to form a "T"-shaped pump cavity. The horizontal tube 3 has a piston head 4 movably connected inside. The side of the piston head 4 is fixedly connected to a rubber ring 401. The tight fit between the rubber ring 401 and the inner wall of the horizontal tube 3 is used to achieve a sealing effect in the pump cavity. The side of the piston head 4 is fixedly connected to a fixed seat 402, and a connecting rod 403 is movably connected through the fixed seat 402. The other end of the connecting rod 403 is movably connected to the edge of the transmission device 5. The circular motion of the transmission device 5 is converted into the linear reciprocating motion of the piston head 4 through the connecting rod 403.

[0022] The transmission device 5 includes a driven wheel 501, a rotating shaft 502, and a transmission wheel 503. The driven wheel 501, rotating shaft 502, and transmission wheel 503 are mounted on the base 505. The driven wheel 501 and transmission wheel 503 are fixedly connected by the rotating shaft 502. The edge of the driven wheel 501 is movably connected to one end of the connecting rod 403. In addition, the driven wheel 501 and the transmission wheel 503 are coaxial and rotate at the same angular velocity. The edge of the transmission wheel 503 is movably connected to a transmission belt 504. The motor shaft 601 of the power motor 6 is also movably connected inside the transmission belt 504. The side of the power motor 6 is fixedly connected to the base 602.

[0023] In this embodiment, the power motor 6 and the transmission device 5 are fixed on the same working plane by the second base 602 and the first base 505, respectively. The power motor 6 drives the motor shaft 601 to rotate and controls the rotation of the transmission wheel 503 by the transmission belt 504. The transmission wheel 503 is fixedly connected to the rotating shaft 502. At the same time, the driven wheel 501 is also fixedly connected to the rotating shaft 502. When the transmission wheel 503 rotates, the driven wheel 501 and the transmission wheel 503 rotate at the same angular velocity. The edge of the wheel is movably connected to the connecting rod 403. The other end of the connecting rod 403 is movably connected to the fixed seat 402 fixedly connected to the side of the piston head 4. The movement of the piston head 4 is restricted within the transverse tube 3. The circular motion of the driven wheel 501 is converted into the linear reciprocating motion of the piston head 4 within the transverse tube 3 by the connecting rod 403. This, combined with the alternating displacement of the movable plug 201 within the vertical tube 2, enables the pump chamber to suck in and expel the fluid in the pipe.

[0024] Reference Figures 1 to 4 The first ear plate 105 has four evenly arranged threaded holes on its side, and a first bolt 1051 is threadedly connected to it. The second rubber pad 107, which is fixedly connected to the first ear plate 105, has four vertically evenly arranged through holes 1071 for the first bolt 1051 to pass through. When the first clamping component 101 and the second clamping component 102 are combined, the second rubber pads 107 on both sides fit tightly together, the through holes 1071 on both sides are aligned, the first bolt 1051 is threadedly connected inside, and the connection between the first clamping component 101 and the second clamping component 102 is tightened by threading the first nut 1052 on the opposite side.

[0025] The second ear plate 106 has two symmetrical threaded holes on its side, which are threaded to a second bolt 1061. The second rubber pad 107, which is fixedly connected to the second ear plate 106, has two symmetrical through holes 1071 on its side, which are in the same position and have the same diameter as the threaded holes of the second ear plate 106. When the first clamping component 101 and the second clamping component 102 are combined, the second rubber pads 107 on both sides fit tightly together, and the through holes 1071 on both sides are aligned. The second bolt 1061 passes through the second ear plate 106 and the second rubber pad 107 on both sides, which are aligned on both sides. The connection between the first clamping component 101 and the second clamping component 102 is tightened by a second nut 1062 threaded to the opposite side.

[0026] Among them, the side of the rubber pad 107 on the side of the first ear plate 105 is provided with a square hole 1072 that is consistent with the opening of the inner cavity 103. The rubber pad 107 on the side of the second ear plate 106 is provided with a horizontal square hole 1073, which is also consistent with the edge of the inner cavity 103. The two make it possible for the inner cavity 103 to be connected to form a complete cavity when the first clamping component 101 and the second clamping component 102 are combined and fixed.

[0027] In this embodiment, the first clamp component 101 and the second clamp component 102 constituting the leak-sealing clamp 1 form a symmetrical structure. The ear plates provided on the outer sides of the two components, the four threaded holes opened on the ear plates, the rubber pads 107 provided at the ear plate contact points, the through holes 1071, square holes 1072 and 1073 opened on the rubber pads 107 are all symmetrically arranged, and the size of the plates and holes is consistent. After alignment, the through holes are connected to the through holes, and the square holes are connected to the square holes. The square holes are consistent with the edge of the inner cavity 103. After the first clamp component 101 and the second clamp component 102 are combined, the inner cavities 103 on both sides form a sealed cavity inside the overall leak-sealing clamp 1 for storing cooling water. In addition, the connection between the ear plates is achieved by bolts and nuts. After tightening, the rubber pads 107 on both sides are tightly fitted, achieving the sealing effect of the inner cavity 103.

[0028] Reference Figures 5 to 6 A water inlet valve 108 is fixedly connected to the bottom side of the first clamp component 101. The water inlet valve 108 includes a valve body 1081 that communicates with the inner cavity 103 of the first clamp component 101, an elastic sealing member 1082 that closes the valve body 1081, and a nut 1083 that is threadedly connected to the end of the valve body 1081.

[0029] Among them, the top side of the second clamp component 102 is fixedly connected to the water outlet valve 109, and the internal structure of the water outlet valve 109 is the same as that of the water inlet valve 108.

[0030] In this embodiment, after clamping the first clamp component 101 and the second clamp component 102 and fastening them to the outside of the "T"-shaped pump cavity with bolts, the inlet valve 108 is connected to the water injection pipe, and cooling water is injected into the inner cavity 103 of the component. The outlet valve 109 on the other side is connected to an outlet pipe. After water comes out of the outlet pipe, the injection of cooling water is stopped, and the water injection pipe and the outlet pipe are removed. At this time, the elastic sealing component 1082 blocks the valve body pipes of the inlet and outlet valves, ensuring that the cooling water is stored in the inner cavity 103 of the component. Then, the nut 1083 is screwed on one end of the valve body to protect the valve port. The leak-sealing clamp 1 filled with cooling water plays a role in cooling down the pump cavity of the piston pump it covers, so as to protect the rubber seal inside the pump body and reduce the possibility of deformation due to the high heat generated by the piston movement in the pump cavity, which may lead to poor sealing and leakage.

[0031] Working principle of the invention: The present invention provides a flow sealing device for a piston pump, the main body of which is a sealing clamp 1. The sealing clamp 1 is mainly composed of a first clamp component 101 and a second clamp component 102 symmetrically arranged. The specific working principle is as follows: Installation of the clamp: Clamp the first clamp component 101 and the second clamp component 102 on the outside of the "T"-shaped pump cavity formed by the vertical pipe 2 and the horizontal pipe 3, aligning the first ear plate 105 fixedly connected to the left vertical shell wall of the first clamp component 101 and the second clamp component 102, and aligning the second ear plate 106 fixedly connected to the shell wall at the right angle on their right sides, with the rubber pads 107 fixedly connected to the sides of the two ear plates tightly fitted, and the threaded holes on the sides of the ear plates aligned. Screw the bolts into the aligned threaded holes, and screw the nuts on the opposite ear plates to fix the first clamp component 101 and the second clamp component 102 in the combined state, thus completing the installation of the leak-sealing clamp 1.

[0032] Coolant injection: Connect the inlet valve 108 to the water injection pipe and inject cooling water into the inner cavity 103 of the component. Connect the outlet valve 109 on the other side to an outlet pipe until water comes out of the outlet pipe. Stop injecting cooling water and disconnect the water injection pipe and the outlet pipe. At this time, the elastic sealing member 1082 blocks the valve body pipes of the inlet and outlet valves to ensure that the cooling water is stored in the inner cavity 103 of the component.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flow sealing device for a piston pump, comprising a sealing clamp (1), characterized in that, The leak-sealing clamp (1) includes a first clamp component (101) and a second clamp component (102) arranged symmetrically. The first clamp component (101) and the second clamp component (102) are in the shape of a "T" rotated 90 degrees counterclockwise. A vertical tube (2) and a horizontal tube (3) are clamped inside. The first clamp component (101) and the second clamp component (102) are both provided with an inner cavity (103). When the two are combined, the inner cavity (103) forms a complete and sealed cavity. A rubber pad (104) is fixedly connected to the inner shell wall of the first clamp component (101) and the second clamp component (102). When the first clamp component (101) and the second clamp component (102) are fastened together, the rubber pad (104) is tightly attached to the outer surface of the vertical tube (2) and the horizontal tube (3). The first clamp component (101) and the second clamp component (102) are fixedly connected to the left vertical shell wall of the first ear plate (105), and the shell wall of the second ear plate (106) is fixedly connected to the right right angle of the two. The sides of the first ear plate (105) and the second ear plate (106) are fixedly connected to the second rubber pad (107), and the second rubber pad (107) and the first rubber pad (104) on the same side are connected as a single piece.

2. The flow sealing device for a piston pump according to claim 1, characterized in that: The vertical tube (2) has a movable plug (201) symmetrically arranged inside about the horizontal centerline. The vertical tube (2) has a horizontal tube (3) on its side, and the vertical tube (2) and the horizontal tube (3) are connected to each other to form a "T" shaped pump cavity. The horizontal tube (3) is movably connected to a piston head (4). The side of the piston head (4) is fixedly connected to a rubber ring (401), and the tight fit between the rubber ring (401) and the inner wall of the horizontal tube (3) is used to achieve a sealing effect in the pump cavity. The side of the piston head (4) is fixedly connected to a fixed seat (402), and a connecting rod (403) is movably connected through the fixed seat (402). The other end of the connecting rod (403) is movably connected to the edge of the transmission device (5). The circular motion of the transmission device (5) is converted into the linear reciprocating motion of the piston head (4) through the connecting rod (403).

3. The flow sealing device for a piston pump according to claim 2, characterized in that: The transmission device (5) includes a driven wheel (501), a rotating shaft (502), and a transmission wheel (503). The driven wheel (501), rotating shaft (502), and transmission wheel (503) are mounted on a base (505). The driven wheel (501) and transmission wheel (503) are fixedly connected by the rotating shaft (502). The edge of the driven wheel (501) is movably connected to one end of the connecting rod (403). In addition, the driven wheel (501) and the transmission wheel (503) are coaxial and rotate at the same angular velocity. The edge of the transmission wheel (503) is movably connected to a transmission belt (504). The inside of the transmission belt (504) is also movably connected to the motor shaft (601) of the power motor (6). The side of the power motor (6) is fixedly connected to a base (602).

4. The flow sealing device for a piston pump according to claim 1, characterized in that: The first ear plate (105) has four evenly arranged threaded holes on its side, and a first bolt (1051) is threadedly connected to it. The second rubber pad (107) which is fixedly connected to the first ear plate (105) has four vertically evenly arranged through holes (1071) for the first bolt (1051) to pass through. When the first clamping component (101) and the second clamping component (102) are combined, the second rubber pads (107) on both sides are tightly fitted, the through holes (1071) on both sides are aligned, the first bolt (1051) is threadedly connected inside, and the connection between the first clamping component (101) and the second clamping component (102) is tightened by threading the first nut (1052) on the opposite side.

5. A flow sealing device for a piston pump according to claim 1, characterized in that: The second ear plate (106) has two symmetrical threaded holes on its side, and a second bolt (1061) is threaded to it. The second rubber pad (107) which is fixedly connected to the second ear plate (106) has two symmetrical through holes (1071) on its side, and the holes are in the same position and have the same diameter as the threaded holes of the second ear plate (106). When the first clamping component (101) and the second clamping component (102) are combined, the second rubber pad (107) on both sides are tightly fitted, the through holes (1071) on both sides are aligned, and the second bolt (1061) passes through the second ear plate (106) and the second rubber pad (107) aligned on both sides. The connection between the first clamping component (101) and the second clamping component (102) is tightened by a second nut (1062) threaded to the opposite side.

6. A flow sealing device for a piston pump according to claim 4, characterized in that: The side of the rubber pad 2 (107) on the side where the first ear plate (105) is located is also provided with a square hole 1 (1072) that is consistent with the opening of the inner cavity (103). The side of the rubber pad 2 (107) on the side where the second ear plate (106) is located is provided with a horizontal square hole 2 (1073), which is also consistent with the edge of the inner cavity (103). The two make it possible for the inner cavity (103) to be connected to form a complete cavity when the first clamping component (101) and the second clamping component (102) are combined and fixed.

7. A flow sealing device for a piston pump according to claim 6, characterized in that: A water inlet valve (108) is fixedly connected to the bottom side of the first clamp component (101). The water inlet valve (108) includes a valve body (1081) communicating with the inner cavity (103) of the first clamp component (101), an elastic sealing member (1082) that closes the valve body (1081), and a nut (1083) that is threaded to the end of the valve body (1081).

8. A flow sealing device for a piston pump according to claim 6, characterized in that: A water outlet valve (109) is fixedly connected to the top side of the second clamp component (102), and the internal structure of the water outlet valve (109) is the same as that of the water inlet valve (108).

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