CN210195995U - High-pressure plunger pump - Google Patents

Abstract

The utility model discloses a high-pressure plunger pump, including the crankcase, bent axle and pump head, be equipped with three work cavity in the pump head, be equipped with the plunger in the crankcase, plunger afterbody transmission connection bent axle, the coaxial ceramic pipe that is fixed with of head, ceramic pipe is located work cavity and the periphery cover is equipped with seal assembly, the seal assembly shutoff is in work cavity one end, seal assembly includes the water seal disk seat, a fixed base, first packing sealing washer, the second packing sealing washer, the flat pad, spring and spring holder, work cavity is equipped with the check valve of intaking for seal assembly's the other end, the pump head outside is equipped with the valve gap, the inside inlet channel that is provided with of valve gap, still be equipped with outlet conduit in. The utility model discloses a plunger pump is at plunger reciprocating motion's in-process, through the elasticity of spring self for the spring can support first packing sealing washer and second packing sealing washer all the time at the in-process of plunger motion, so just can strengthen the leakproofness of water seal disk seat, has improved plunger pump's life greatly.

Description

High-pressure plunger pump

Technical Field

The utility model relates to a water pump, more specifically say, it relates to a high-pressure plunger pump.

Background

The volume of the working chamber is changed due to the reciprocating motion of the plunger pump, so that the processes of water absorption and water pressing are completed; the process brings great test to the sealing performance of the plunger in the moving process, the existing plunger adopts water seal sealing, the situation of poor sealing can easily occur in long-term reciprocating motion, and the failure of the plunger pump can be seriously caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a plunger is at the better high-pressure plunger pump of reciprocating motion in-process leakproofness.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model discloses further set up to: a high-pressure plunger pump comprises a crankcase, a crankshaft and a pump head, wherein three working chambers are arranged in the pump head, a plunger coaxial with the working chambers is arranged in the crankcase, the tail of the plunger is in transmission connection with the crankshaft, the head of the plunger is coaxially fixed with a ceramic pipe, the ceramic pipe is positioned in the working chamber, the periphery of the ceramic pipe is sleeved with a sealing assembly, the sealing assembly is blocked at one end of the working chamber, the sealing assembly comprises a water seal valve seat, a fixed seat, a first packing sealing ring, a second packing sealing ring, a flat gasket, a spring and a spring seat which is embedded on the inner wall of the working chamber and is in contact with the spring, the working chamber is provided with a water inlet one-way valve relative to the other end of the sealing assembly, a valve cover is arranged outside the pump head, a water inlet pipeline communicated with the water inlet one-way valve is arranged inside the valve cover, a water outlet, and water outlet one-way valves are arranged in the water outlet channels.

The utility model discloses further set up to: the working chamber is provided with an arc-shaped groove which is inwards sunken to form a buffer area relative to the opening position of each water outlet channel.

The utility model discloses further set up to: the both sides of pump head are equipped with respectively and are equipped with drainage channel, drainage channel's one end is linked together with the inlet channel, and the other end extends to the fixing base position and is linked together with the working chamber, and each working chamber is equipped with interface channel for the fixing base position, be equipped with on the fixing base and be the cross through-hole that link up the setting.

The utility model discloses further set up to: the valve body of the water inlet one-way valve is provided with two annular grooves which are arranged in a clearance mode, and sealing rings are arranged in the annular grooves.

Through adopting above-mentioned technical scheme, at the in-process that reciprocating motion was done to the plunger, the spring that the cover was established on the ceramic pipe can be through the elasticity of self, can pack first packing sealing washer and second throughout and pack the support water seal disk seat that the sealing washer is firmly for the water seal disk seat has better leakproofness, is difficult to reveal in long-term use, has improved the life of plunger pump greatly.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at a in FIG. 2;

FIG. 4 is a first cross-sectional view of the pump head;

FIG. 5 is a second cross-sectional view of the pump head;

fig. 6 is a schematic structural view of the fixing base.

1. A crankcase; 2. a crankshaft; 3. a pump head; 30. a working chamber; 31. a water inlet one-way valve; 310. a ring groove; 311. a seal ring; 32. a water outlet pipeline; 33. a water outlet channel; 34. a water outlet one-way valve; 35. an arc-shaped slot; 36. a drainage channel; 37. a connecting channel; 4. a plunger; 40. a ceramic tube; 5. a seal assembly; 50. a water seal valve seat; 51. a fixed seat; 510. a through hole; 52. a first packing seal ring; 53. a second packing seal ring; 54. flattening the cushion; 55. a spring; 56. a spring seat; 6. a valve cover; 60. a water inlet pipeline.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 6.

The utility model discloses a high-pressure plunger pump, including crankcase 1, bent axle 2 and pump head 3, be equipped with the working chamber 30 that three range set up in the pump head 3, be equipped with the plunger 4 coaxial with working chamber 30 in the crankcase 1, the transmission of plunger 4 afterbody connects bent axle 2, and the coaxial ceramic tube 40 that is fixed with of head, ceramic tube 40 are located working chamber 30 and the periphery cover is equipped with seal assembly 5, and seal assembly 5 shutoff is in working chamber 30 one end, seal assembly 5 includes water seal valve seat 50, fixing base 51, first packing sealing washer 52, second packing sealing washer 53, flat pad 54, spring 55 and inlays the spring holder 56 that sets up on working chamber 30 inner wall and be inconsistent with spring 55, working chamber 30 is equipped with into water check valve 31 for the other end of seal assembly 5, the pump head 3 outside is equipped with valve gap 6, the inside of valve gap 6 is provided with the inlet pipe 60 who is linked together with into water check valve 31, a water outlet pipeline 32 is further arranged in the pump head 3, a water outlet channel 33 communicated with each working chamber 30 is arranged in the water outlet pipeline 32, and a water outlet one-way valve 34 is arranged in each water outlet channel 33.

Further, the working chamber 30 is provided with an arc-shaped groove 35 which is inwardly recessed to form a buffer area relative to the opening position of each water outlet channel 33. Through being provided with arc wall 35 for the water that the high pressure got into in the working chamber 30 can form certain buffering in arc wall 35, avoids the water direct impact of high pressure to break easily at the opening part of play water passageway 33, has improved the reliability of product.

Further, both sides of pump head 3 are equipped with drainage channel 36 respectively, drainage channel 36's one end and inlet channel 60 are linked together, and the other end extends to fixing base 51 position and is linked together with work chamber 30, and each work chamber 30 is equipped with interface channel 37 for fixing base 51 position, be equipped with on the fixing base 51 and be the cross through-hole 510 that sets up that link up. Through being provided with two drainage channel 36, and two drainage channel 36 form the intercommunication water route of returning the font for inlet channel 60 one end can utilize water pressure to produce the siphon principle and clear up the inside impurity of plunger 4 pump when intaking, also can erode the water seal disk seat simultaneously, has avoided piling up of impurity, unusual practicality.

Further, be equipped with two annular 310 that are the clearance setting on the valve body of water inlet check valve 31, all be equipped with sealing washer 311 in the annular 310. The two sealing rings 311 are arranged on the valve body of the water inlet check valve 31, so that the water inlet check valve 31 can bring better sealing performance.

The utility model discloses a plunger pump is at 4 reciprocating motion's of plunger in-process, through the elasticity of spring 55 self for spring 55 can support first packing sealing washer 52 and second packing sealing washer 53 all the time at the in-process that plunger 4 moved, makes hugging closely that first packing sealing washer 52 and second packing sealing washer 53 can be all the time firmly in water seal disk seat 50 bottom, so just can strengthen the leakproofness of water seal disk seat 50, has improved plunger pump's life greatly.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. A high pressure plunger pump, characterized by: the ceramic tube sealing device comprises a crankcase, a crankshaft and a pump head, wherein three working chambers which are arranged in a row are arranged in the pump head, a plunger which is coaxial with the working chambers is arranged in the crankcase, the tail of the plunger is in transmission connection with the crankshaft, a ceramic tube is coaxially fixed at the head, the ceramic tube is positioned in the working chambers, a sealing assembly is sleeved at the periphery of the ceramic tube, the sealing assembly is plugged at one end of each working chamber, the sealing assembly comprises a water seal valve seat, a fixed seat, a first packing sealing ring, a second packing sealing ring, a flat cushion, a spring and a spring seat which is embedded on the inner wall of each working chamber and is in abutting contact with the spring, the working chambers are provided with water inlet one-way valves relative to the other ends of the sealing assemblies, valve covers are arranged outside the pump head, water inlet pipelines communicated with the water inlet one-way valves are arranged, and water outlet one-way valves are arranged in the water outlet channels.

2. A high-pressure plunger pump according to claim 1, characterized in that: the working chamber is provided with an arc-shaped groove which is inwards sunken to form a buffer area relative to the opening position of each water outlet channel.

3. A high-pressure plunger pump according to claim 1, characterized in that: the both sides of pump head are equipped with respectively and are equipped with drainage channel, drainage channel's one end is linked together with the inlet channel, and the other end extends to the fixing base position and is linked together with the working chamber, and each working chamber is equipped with interface channel for the fixing base position, be equipped with on the fixing base and be the cross through-hole that link up the setting.

4. A high-pressure plunger pump according to claim 1, characterized in that: the valve body of the water inlet one-way valve is provided with two annular grooves which are arranged in a clearance mode, and sealing rings are arranged in the annular grooves.

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