CN214998163U - Plunger pump of cleaning machine - Google Patents

Abstract

The utility model discloses a cleaning machine plunger pump, comprising a cylinder body, the front of cylinder body is provided with first shell, the front of first shell is provided with the second shell, the symmetry is provided with the check valve between second shell and the first shell, the cylinder liner has been cup jointed in the inner chamber slip of cylinder body, the inner chamber interference fit of cylinder liner and cylinder body, the inner chamber of cylinder body is provided with the plunger body, the outer wall of plunger body cup joints with the inner chamber slip of cylinder liner, the inner chamber of cylinder body is provided with positioner, positioner includes two spacing rings, the cylinder body is seted up flutedly, the outer wall of spacing ring cup joints with the inner chamber slip of recess. The utility model discloses utilize the mode that sets up of cylinder liner, the cylinder liner cup joints with the inner chamber of cylinder body slip to the inner chamber interference fit of cylinder liner and cylinder body, thereby the plunger body can not produce the friction with the cylinder body when the inside back and forth movement of cylinder liner, thereby improves the life of cylinder body, and cylinder liner manufacturing cost is far less than the manufacturing cost of cylinder body, thereby improves its practicality.

Description

Plunger pump of cleaning machine

Technical Field

The utility model relates to a plunger pump field, in particular to cleaning machine plunger pump.

Background

The plunger pump is an important device of a hydraulic system, changes the volume of a sealed working cavity to absorb and press oil by means of reciprocating motion of a plunger in a cylinder body, has the advantages of high rated pressure, compact structure, high efficiency, convenience in flow regulation and the like, and is widely applied to occasions where high pressure, large flow and flow need to be regulated.

Plunger pumps are generally divided into a single plunger pump, a horizontal plunger pump, an axial plunger pump and a radial plunger pump, the plunger pump of a cleaning machine generally adopts a crankshaft to drive a plunger to move back and forth, the plunger pump is introduced by taking a plunger as a principle, two one-way valves are arranged on one plunger pump, the directions are opposite, negative pressure is generated in a cylinder when the plunger moves towards one direction, at the moment, one-way valve opens liquid to be sucked into the cylinder, when the plunger moves towards the other direction, the other one-way valve is opened after the liquid is compressed, and the liquid sucked into the cylinder is discharged. The continuous oil supply is formed after the continuous movement of the working mode, but the plunger can be in friction damage with the inner wall of the cylinder body when reciprocating in the cylinder body, so that the inner diameter of the cylinder body is increased along with abrasion, the tightness between the inner wall of the cylinder body and the plunger is reduced by chickens, and the inner wall of the cylinder body is inconvenient to maintain, so that the service performance of the cylinder body is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cleaning machine plunger pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: cleaning machine plunger pump, including the cylinder body, the front of cylinder body is provided with first shell, the front of first shell is provided with the second shell, the symmetry is provided with the check valve between second shell and the first shell, the cylinder liner has been cup jointed in the inner chamber slip of cylinder body, the inner chamber interference fit of cylinder liner and cylinder body, the inner chamber of cylinder body is provided with the plunger body, the outer wall of plunger body cup joints with the inner chamber slip of cylinder liner, the inner chamber of cylinder body is provided with positioner.

Preferably, the positioning device comprises two limiting rings, grooves are formed in two ends of the inner wall of the cylinder body, and the outer walls of the limiting rings are in sliding sleeve connection with the inner cavities of the grooves.

Preferably, the two limiting circular rings are respectively positioned at two sides of the cylinder sleeve, and two ends of the cylinder sleeve are attached to one side, opposite to the two limiting circular rings, of the cylinder sleeve.

Preferably, the diameter of the inner wall of the cylinder sleeve is the same as that of the inner wall of the limiting ring.

Preferably, one side of the limiting ring is provided with a slot, and one side of the limiting ring is provided with two through holes.

Preferably, the top of first shell one side is provided with the apopore, the bottom of first shell one side is provided with the inlet opening, be provided with first sealed the pad between first shell and the cylinder body, be provided with the sealed pad of second between first shell and the second shell.

Preferably, the middle part of one side of the second shell is slidably inserted and sleeved with a plurality of fixing bolts, and one ends of the outer walls of the fixing bolts penetrate through the first shell to be inserted and sleeved with the threads of the cylinder body.

The utility model discloses a technological effect and advantage:

(1) the utility model utilizes the arrangement mode of the cylinder sleeve, the cylinder sleeve is sleeved with the inner cavity of the cylinder body in a sliding way, and the cylinder sleeve is in interference fit with the inner cavity of the cylinder body, so that the plunger body does not generate friction with the cylinder body when reciprocating in the cylinder sleeve, thereby prolonging the service life of the cylinder body, and the production cost of the cylinder sleeve is far lower than that of the cylinder body, thereby improving the practical performance;

(2) the utility model discloses utilize positioner's mode of setting, positioner include two spacing rings, and spacing ring joint is in the inside of cylinder body to can carry out the position to the cylinder liner and inject, thereby guarantee the cylinder liner at the inside stability of cylinder body once more, and utilize the through-hole on the spacing ring to be convenient for dismantle spacing ring, thereby improve its practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the side portion of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

Fig. 4 is the overall structure schematic diagram of the limiting ring of the present invention.

In the figure: 1. a cylinder body; 2. a first housing; 3. a second housing; 4. a cylinder liner; 5. a plunger body; 6. a positioning device; 61. a limiting ring; 62. a through hole; 7. and (5) fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a cleaning machine plunger pump as shown in fig. 1-4, including cylinder body 1, the front of cylinder body 1 is provided with first shell 2, the front of first shell 2 is provided with second shell 3, the symmetry is provided with the check valve between second shell 3 and the first shell 2, two relative check valves can control the inside mobile liquid of first shell 2 and only can not advance, thereby realize drawing water and go out water work, cylinder liner 4 has been cup jointed in the inner chamber slip of cylinder body 1, cylinder liner 4 and cylinder body 1's inner chamber interference fit, the inner chamber of cylinder body 1 is provided with plunger body 5, the inside bent axle that is provided with of cylinder body 1, thereby crankshaft rotation just can drive plunger body 5 through the connecting rod and reciprocate in cylinder liner 4 inside, the outer wall of plunger body 5 cup joints with the inner chamber slip of cylinder liner 4, the inner chamber of cylinder body 1 is provided with positioner 6.

The positioning device 6 comprises two limiting rings 61, two ends of the inner wall of the cylinder body 1 are both provided with grooves, the grooves are annular grooves, so that the grooves can limit the positions of the outer walls of the limiting rings 61, so that the inner side of one side of the limiting rings 61 can limit the positions of the cylinder sleeve 4, thereby ensuring the stability between the cylinder sleeve 4 and the cylinder body 1, the outer walls of the limiting rings 61 are in sliding sleeve joint with the inner cavity of the grooves, the two limiting rings 61 are respectively positioned at two sides of the cylinder sleeve 4, two ends of the cylinder sleeve 4 are respectively attached to one side opposite to the two limiting rings 61, the diameter of the inner wall of the cylinder sleeve 4 is the same as that of the inner wall of the limiting rings 61, thereby the two limiting rings 61 and the cylinder sleeve 4 form a whole, thereby ensuring the stability of the plunger body 5 moving in the cylinder sleeve 4, one side of the limiting rings 61 is provided with a groove, one side of the limiting rings 61 is provided with two through holes 62, use tools can make spacing ring 61 fluting fracture department relative motion through two through-holes 62 on the spacing ring 61 to change spacing ring 61's diameter, thereby be convenient for install or dismantle spacing ring 61, and spacing ring 61 has certain elasticity performance, thereby when it does not have external effort, spacing ring 61 can keep initial condition.

The top of one side of the first shell 2 is provided with a water outlet hole, the bottom of one side of the first shell 2 is provided with a water inlet hole, a first sealing gasket is arranged between the first shell 2 and the cylinder body 1, the first sealing gasket and the second sealing gasket can ensure the sealing performance between the first shell 2 and the cylinder body 1 and between the second shell 3, a second sealing gasket is arranged between the first shell 2 and the second shell 3, the middle part of one side of the second shell 3 is slidably inserted and sleeved with a plurality of fixing bolts 7, one end of the outer wall of each fixing bolt 7 penetrates through the first shell 2 to be inserted and sleeved with the threads of the cylinder body 1, when the cylinder sleeve 4 is maintained and replaced, the fixing bolts 7 are loosened firstly, the first shell 2 and the second shell 3 are taken down, then a tool is utilized to penetrate through the through holes 62 on the limiting ring 61, so that the slotting fracture part of the limiting ring 61 moves relatively, thereby reducing the diameter of the limiting ring 61 and separating from the groove on the cylinder body 1, then the cylinder liner 4 is taken out of the cylinder 1, the plunger body 5 is separated from the cylinder 1, and then the cylinder liner 4 can be taken out of the cylinder 1 for replacement and maintenance.

The utility model discloses the theory of operation: when the cylinder sleeve 4 is installed, the fixing bolt 7 is firstly disassembled, the first shell 2 and the second shell 3 are separated from the cylinder body 1, firstly, a tool is used for penetrating into the two through holes 62 on the limiting circular ring 61, the groove fracture part of the limiting circular ring 61 is relatively moved, thereby the diameter of the limiting circular ring 61 is reduced, then the cylinder body 1 is pushed to one groove, then the tool is loosened to restore the limit ring 61, the limit ring 61 is sleeved with the inner cavity of the groove in a sliding way, then, the cylinder sleeve 4 is sleeved with the cylinder body 1 in a sliding mode until one end of the cylinder sleeve 4 is attached to the limiting circular ring 61, another limiting circular ring 61 is sleeved with a groove in the inner wall of the cylinder body 1 in a sliding mode, then the plunger body 5 matched with the cylinder sleeve 4 is selected to be connected with a crankshaft in the cylinder body 1, and finally the second shell 3 and the first shell 2 are installed on the cylinder body 1 through the fixing bolt 7.

Thereby when its work, the bent axle drives plunger body 5 at the inside back and forth movement of cylinder liner 4 to under the check valve cooperation of two symmetries between plunger body 5 and first shell 2 and second shell 3 was used, external rivers entered into first shell 2 from the water inlet on the first shell 2 inside, then discharged from the apopore on the first shell 2, thereby made cleaning machine plunger pump work.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. Cleaning machine plunger pump, including cylinder body (1), its characterized in that, the front of cylinder body (1) is provided with first shell (2), the front of first shell (2) is provided with second shell (3), the symmetry is provided with the check valve between second shell (3) and first shell (2), cylinder liner (4) have been cup jointed in the inner chamber slip of cylinder body (1), the inner chamber interference fit of cylinder liner (4) and cylinder body (1), the inner chamber of cylinder body (1) is provided with plunger body (5), the outer wall of plunger body (5) cup joints with the inner chamber slip of cylinder liner (4), the inner chamber of cylinder body (1) is provided with positioner (6).

2. The plunger pump of the cleaning machine as claimed in claim 1, wherein the positioning device (6) comprises two limiting rings (61), grooves are formed in both ends of the inner wall of the cylinder body (1), and the outer wall of each limiting ring (61) is slidably sleeved with the inner cavity of each groove.

3. The plunger pump of the cleaning machine as claimed in claim 2, characterized in that the two limit rings (61) are respectively located at two sides of the cylinder sleeve (4), and two ends of the cylinder sleeve (4) are respectively attached to one side of the cylinder sleeve opposite to the two limit rings (61).

4. The plunger pump of the cleaning machine as claimed in claim 3, characterized in that the diameter of the inner wall of the cylinder jacket (4) is the same as the diameter of the inner wall of the limit ring (61).

5. The plunger pump of the cleaning machine as recited in claim 2, characterized in that one side of the limit ring (61) is opened with a slot, and one side of the limit ring (61) is opened with two through holes (62).

6. The plunger pump of the cleaning machine as claimed in claim 1, characterized in that the top of one side of the first casing (2) is provided with a water outlet, the bottom of one side of the first casing (2) is provided with a water inlet, a first sealing gasket is arranged between the first casing (2) and the cylinder body (1), and a second sealing gasket is arranged between the first casing (2) and the second casing (3).

7. The plunger pump of the cleaning machine is characterized in that a plurality of fixing bolts (7) are slidably inserted and sleeved in the middle of one side of the second shell (3), and one ends of the outer walls of the fixing bolts (7) penetrate through the first shell (2) and are in threaded insertion and sleeve connection with the cylinder body (1).

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