CN216111238U

CN216111238U - Plunger pump and cleaning machine with same

Info

Publication number: CN216111238U
Application number: CN202122157701.4U
Authority: CN
Inventors: 毛正; 上猛军; 林剑魏
Original assignee: Shanghai Yili Electric Co ltd; Zhejiang Yili Machinery and Electric Co Ltd
Current assignee: Shanghai Yili Electric Co ltd; Zhejiang Yili Machinery and Electric Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-22
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a plunger pump and have its cleaning machine, plunger pump includes plunger, elastic component, case and pump head the pump head with be formed with the inner chamber between the plunger, the elastic component with the case set up in the inner chamber, just the elastic component set up in the case with between the plunger be formed with first water inlet on the pump head, the case support by in on the first water inlet. The plunger pump is simple in structure and convenient to install.

Description

Plunger pump and cleaning machine with same

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a plunger pump and a cleaning machine with the same.

Background

Fig. 1 is a schematic cross-sectional structure diagram of a plunger pump in the prior art, and as shown in fig. 1, in the prior art, a check valve 92 is installed at a water inlet end of a pump head 91 to perform water inlet and water sealing, the check valve 92 is fixedly installed on the pump head 91, and the assembly and disassembly are very inconvenient, and in addition, in order to install the check valve 92, the structure of the pump head 91 is complex, and the volume and the weight are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plunger pump and a cleaning machine with the same.

The utility model provides a plunger pump which comprises a plunger, an elastic part, a valve core and a pump head, wherein an inner cavity is formed between the pump head and the plunger, the elastic part and the valve core are arranged in the inner cavity, the elastic part is arranged between the valve core and the plunger, a first water inlet is formed in the pump head, and the valve core is abutted against the first water inlet.

Furthermore, the valve core is made of plastic materials.

Further, a sealing gasket is arranged at one end of the valve core facing the pump head.

Furthermore, the plunger pump further comprises a crankshaft and a connecting rod, the plunger pump is connected with the crankshaft through the connecting rod, the plungers are arranged at intervals, each plunger is connected with the crankshaft through one connecting rod, a plurality of first water inlets are formed in the pump head, and each plunger abuts against one valve core on one first water inlet through one elastic piece.

Furthermore, each plunger with all be formed with one between the pump head the inner chamber, it is a plurality of the inner chamber communicates in proper order, still be provided with on the plunger pump with the delivery port of inner chamber intercommunication.

Furthermore, a water outlet one-way valve is arranged on the water outlet.

Further, the plunger pump further comprises a water inlet channel, the water inlet channel and the inner cavity are respectively arranged on two sides of the pump head and are communicated with each other through the first water inlets, and a second water inlet communicated with the outside is further formed in the water inlet channel.

Furthermore, a groove is formed at one end of the plunger facing the valve core, a protruding portion is formed at one end of the valve core facing the plunger, the protruding portion extends into the groove, and the elastic element is arranged in the groove and clamped between the plunger and the valve core.

Furthermore, the elastic element is a spring, the protruding part comprises a core column and an outer side wall surrounding the core column, one end of the spring is fixed at the bottom of the groove, and the other end of the spring extends into the space between the outer side wall and the core column.

The utility model also provides a cleaning machine which comprises the plunger pump.

In summary, the elastic element is disposed between the valve core and the plunger, and the valve core abuts against the first water inlet of the pump head. During assembly, the elastic element is arranged on the plunger, and the valve core is abutted against the pump head from one side of the inner cavity by the elasticity of the elastic element. Therefore, the plunger pump is simple in structure and convenient to install. Furthermore, by using the valve core made of plastic materials, the weight of the whole crankshaft pump is greatly reduced and the cost is also reduced while the performance of the plunger pump is ensured.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic cross-sectional view of a plunger pump in the prior art

Fig. 2 is a schematic cross-sectional view of a plunger pump according to an embodiment of the present invention, taken along a length direction of a crankshaft.

Fig. 3 is a schematic cross-sectional view of the plunger pump of fig. 1 taken perpendicular to the length of the crankshaft pump.

Fig. 4 is a schematic sectional structure view of the valve cartridge of fig. 1.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the utility model, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

Fig. 2 is a schematic sectional view of a plunger pump according to an embodiment of the present invention, the sectional view being taken along a length direction of a crankshaft, and fig. 3 is a schematic sectional view of the plunger pump in fig. 1, the sectional view being taken along a direction perpendicular to the length direction of the crankshaft. As shown in fig. 2 and 3, the plunger pump according to the embodiment of the present invention includes a crankshaft 11, a connecting rod 12, a plunger 13, an elastic member 14, a valve core 15, and a pump head 16, wherein the plunger 13 is connected to the crankshaft 11 through the connecting rod 12, an inner cavity 21 is formed between the pump head 16 and the plunger 13, the elastic member 14 and the valve core 15 are disposed in the inner cavity 21, the elastic member 14 is disposed between the valve core 15 and the plunger 13, a first water inlet 161 is formed on the pump head 16, and the valve core 15 abuts against the first water inlet 161.

In the present embodiment, the elastic member 14 is disposed between the valve core 15 and the plunger 13, and the valve core 15 abuts against the first water inlet 161 of the pump head 16. When water is sucked, the crankshaft 11 drives the plunger 13 to move in a direction away from the first water inlet 161, so that negative pressure is formed in the inner cavity 21, the valve core 15 is separated from the first water inlet 161 under the action of the difference between the internal pressure and the external pressure, and external water flows into the inner cavity 21; when discharging, bent axle 11 drives plunger 13 to the direction motion that is close to first water inlet 161, and in the motion process, elastic component 14 takes place deformation because of the pressurized, and then oppresses case 15 and supports on first water inlet 161, seals inner chamber 21, and after inner chamber 21 seals, along with plunger 13's continuation motion, the pressure increase in the inner chamber 21 discharges water from inner chamber 21.

Due to the existence of the valve core 15 and the elastic member 14, a check valve is not required to be installed at the first water inlet 161, and a related structure suitable for the check valve is not required to be arranged on the pump head 16. In assembly, the elastic member 14 is provided on the plunger 13, and the valve element 15 is pressed against the pump head 16 from the side of the inner chamber 21 by the elasticity of the elastic member 14. Therefore, the plunger pump is simple in structure and convenient to install.

Further, in this embodiment, the valve core 15 may be a valve core 15 made of plastic. In the prior art, the check valve is generally made of metal, and through the improvement of this embodiment, the valve core 15 can be made of plastic, so that the performance of the plunger pump is ensured, the weight of the whole crankshaft 11 pump is greatly reduced, and the cost is also reduced.

Further, in order to ensure the sealing performance of the valve core 15, a sealing gasket 17 is further disposed on an end of the valve core 15 facing the pump head 16, that is, when the valve core 15 abuts against the first water inlet 161, the sealing gasket 17 is interposed between the valve core 15 and the first water inlet 161.

Referring to fig. 1, in the present embodiment, there may be a plurality of plungers 13, the plurality of plungers 13 are arranged at intervals, and each plunger 13 is connected to the crankshaft 11 through a connecting rod 12. A plurality of first water inlets 161 are formed on the pump head 16, and each plunger 13 abuts a valve core 15 against one of the first water inlets 161 via an elastic member 14. An inner cavity 21 is formed between each plunger 13 and the pump head 16, and the inner cavities 21 are communicated in sequence. The plunger pump is also provided with a water outlet 211 communicated with the inner cavity 21, and the water outlet 211 is provided with a water outlet one-way valve 212.

Referring to fig. 1 and fig. 2, in the present embodiment, the plunger pump further includes a water inlet channel 22, the water inlet channel 22 and the inner cavity 21 are respectively disposed at two sides of the pump head 16 and are communicated with each other through a first water inlet 161, and a second water inlet 221 communicated with the outside is further disposed in the water inlet channel 22. That is, when water is supplied, the external water flow enters the water inlet passage 22 through the second water inlet 221, and then enters the inner chamber 21 through the first water inlet 161. A filter element (not shown) is also provided at the second water inlet 221.

Fig. 4 is a schematic cross-sectional structure of the valve core shown in fig. 1, and as shown in fig. 2 to 4, in this embodiment, a groove 131 is formed at one end of the plunger 13 facing the valve core 15, a protruding portion 151 is formed at one end of the valve core 15 facing the plunger 13, the protruding portion 151 extends into the groove 131, and the elastic member 14 is disposed in the groove 131 and is sandwiched between the plunger 13 and the valve core 15.

More specifically, the elastic element 14 may be a spring, the protrusion 151 includes a stem 1512 and an outer sidewall 1511 surrounding the stem 1512, one end of the spring is fixed at the bottom of the groove 131, and the other end of the spring extends between the outer sidewall 1511 of the protrusion 151 and the stem 1512, and the movement of the valve element 15 can be easily guided by the above structure.

In summary, the elastic member 14 is disposed between the valve core 15 and the plunger 13, and the valve core 15 abuts against the first water inlet 161 of the pump head 16. In assembly, the elastic member 14 is provided on the plunger 13, and the valve element 15 is pressed against the pump head 16 from the side of the inner chamber 21 by the elasticity of the elastic member 14. Therefore, the plunger pump is simple in structure and convenient to install. Further, by using the valve core 15 made of plastic, the weight of the whole crankshaft 11 pump is greatly reduced while the performance of the plunger pump is ensured, and the cost is also reduced.

The utility model also provides a cleaning machine, which comprises the plunger pump, and other technical characteristics of the cleaning machine are referred to in the prior art and are not described in detail herein.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A plunger pump, characterized by: including plunger, elastic component, case and pump head the pump head with be formed with the inner chamber between the plunger, the elastic component with the case set up in the inner chamber, just the elastic component set up in the case with between the plunger be formed with first water inlet on the pump head, the case support by in on the first water inlet.

2. The plunger pump of claim 1, wherein: the valve core is made of plastic materials.

3. The plunger pump of claim 1, wherein: and a sealing gasket is also arranged at one end of the valve core facing the pump head.

4. The plunger pump of claim 1, wherein: the plunger pump further comprises a crankshaft and a connecting rod, the plunger pump is connected with the crankshaft through the connecting rod, the plungers are multiple and arranged at intervals, each plunger is connected with the crankshaft through one connecting rod, multiple first water inlets are formed in the pump head, and each plunger abuts against one valve core on one first water inlet through one elastic piece.

5. The plunger pump of claim 4, wherein: each the plunger with all be formed with one between the pump head the inner chamber, it is a plurality of the inner chamber communicates in proper order, still be provided with on the plunger pump with the delivery port of inner chamber intercommunication.

6. The plunger pump of claim 5, wherein: and a water outlet one-way valve is arranged on the water outlet.

7. The plunger pump of claim 1, wherein: the plunger pump further comprises a water inlet channel, the water inlet channel and the inner cavity are respectively arranged on two sides of the pump head and are communicated with each other through the first water inlets, and second water inlets communicated with the outside are further formed in the water inlet channel.

8. The plunger pump of claim 1, wherein: a groove is formed in one end, facing the valve core, of the plunger, a protruding portion is formed in one end, facing the plunger, of the valve core, the protruding portion extends into the groove, and the elastic piece is arranged in the groove and clamped between the plunger and the valve core.

9. The plunger pump of claim 8, wherein: the elastic piece is a spring, the protruding portion comprises a core column and an outer side wall surrounding the core column, one end of the spring is fixed at the bottom of the groove, and the other end of the spring extends into the position between the outer side wall and the core column.

10. A cleaning machine is characterized in that: comprising a plunger pump according to any of claims 1 to 9.