WO2024008133A1

WO2024008133A1 - Pump device

Info

Publication number: WO2024008133A1
Application number: PCT/CN2023/106007
Authority: WO
Inventors: 傅珂珂; 李进
Original assignee: 浙江千机智能科技有限公司
Priority date: 2022-07-06
Filing date: 2023-07-06
Publication date: 2024-01-11
Also published as: CN217813888U

Abstract

A pump device (20), which comprises a spray connecting head (202) and a plunger pump (10); the plunger pump (10) comprises a pump assembly (100) and a reciprocating assembly (200); the pump assembly (100) comprises a pump body (110) and a plunger (120); the reciprocating assembly (200) comprises a power source (210), a power shaft (220), and a reciprocating member (230); The reciprocating member (230) is in transmissive cooperation with the power shaft (220); the plunger (120) is connected to the reciprocating member (230); when the power source (210) drives the power shaft (220) to impel the plunger (120) to reciprocate in a volumetric cavity (111) by means of the reciprocating member (230), a fluid can be drawn into the volumetric cavity (111) from a first channel (112) and discharged from a second channel (113), thereby achieving pumping of the fluid; guide rods (130) are connected to the pump body (110), a guide sleeve (231) is formed on an outer wall of the reciprocating member (230), the guide rods (130) are arranged as passing within the guide sleeve (231), and the length direction of the guide rods (130) is consistent with the direction of reciprocating movement of the plunger (120). Furthermore, when the reciprocating member (230) drives the plunger (120) to move back and forth, by utilizing the guiding cooperation between the guide rods (130) and the guide sleeve (231), stability of the plunger (120) in the reciprocating movement direction can be effectively ensured, thereby ensuring the stability of fluid pumping in and pumping out.

Description

Pump equipment

Technical field

The utility model relates to the technical field of pump structures, in particular to pump equipment.

Background technique

A pump is a machine that transports fluid or pressurizes fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. The pump is mainly used to transport liquids such as water, oil, acid and alkali liquids, emulsions, suspoemulsions and liquid metals. It can also transport liquid, gas mixtures and liquids containing suspended solids. However, due to the poor transmission stability of the pump body of traditional pump equipment, the stability of the process of pumping fluid with the pump equipment is poor.

Utility model content

Based on this, it is necessary to provide a pumping device that improves the stability of the pump fluid to address the above problems.

A kind of pump equipment, the pump equipment includes a plunger pump and a spray joint; the plunger pump includes a pump assembly and a reciprocating assembly, the pump assembly includes a pump body and a plunger, and a volume chamber is formed in the pump body , and a first channel and a second channel connected to the volume chamber are formed on the outer wall of the pump body; the reciprocating assembly includes a power source, a power shaft and a reciprocating part, and the reciprocating part is driven by the power shaft Cooperating, the plunger is connected to the reciprocating piece, the pump body is connected to a guide rod, a guide sleeve is formed on the outer wall of the reciprocating piece, the guide rod is inserted into the guide sleeve, and can Relative to the movement of the guide sleeve, the power source is used to drive the power shaft to drive the plunger to reciprocate in the volume chamber through the reciprocating member, so that fluid can be sucked into the volume chamber from the first channel. into the volume chamber and discharged from the second channel, wherein the length direction of the guide rod is consistent with the reciprocating direction of the plunger; a water outlet is formed in the nozzle joint channel, the spray joint is installed on the pump body so that the second channel is connected with the water outlet channel.

In another embodiment, the power shaft is provided with a reciprocating guide rail, the reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft, and the wave peaks and troughs of the curved guide rail are along the direction of the power shaft. The axes are arranged at intervals; the reciprocating part includes a moving body and a reciprocating body, the reciprocating body is sleeved on the power shaft, the moving body is located between the reciprocating body and the power shaft, and the moving body The limit is located on the reciprocating body and is guided on the reciprocating guide rail. The power source is used to drive the power shaft to rotate so that the moving body moves on the reciprocating guide rail. The plunger is connected to In the reciprocating body, the guide sleeve is formed on the outer wall of the reciprocating body; wherein the reciprocating movement direction of the reciprocating body is consistent with the axis direction of the power shaft.

In another embodiment, the reciprocating guide rail is a reciprocating groove, the reciprocating groove is a closed curved groove surrounding the axis of the power shaft, the moving body is penetrated in the reciprocating groove, and the moving body Can move in the reciprocating groove; the reciprocating part also includes a matching sleeve, which is set on the moving body and installed on the reciprocating body, between the moving body and the inner wall of the matching sleeve A plurality of rolling balls are provided, and the moving body is a sphere and can roll relative to the matching sleeve.

In another embodiment, the reciprocating body is provided with a reciprocating hole, the outer wall of the reciprocating body is provided with a mounting hole connected to the reciprocating hole, and the power shaft is passed through the reciprocating hole. A mounting plate is provided at one end of the matching sleeve, and the matching sleeve is inserted into the mounting hole so that the mounting plate contacts and is installed on the outer wall of the reciprocating body.

In another embodiment, the number of the guide bushes is at least two, each of the guide bushes is arranged at intervals around the axis of the power shaft, the number of the guide rods is consistent with the number of the guide bushes, and each guide bush is The guide rod is correspondingly inserted into one of the guide sleeves.

In another embodiment, the number of the moving bodies is at least two, each of the moving bodies is arranged at intervals around the axis of the power shaft, and the power shaft can drive each of the moving bodies to move in the same direction. The number of the matching sleeves is consistent with the number of the moving bodies. Each moving body is installed on the reciprocating body through one matching sleeve. There is a gap between two adjacent matching sleeves. A guide bush is provided.

In another embodiment, the power shaft is also provided with a balance guide rail that is spaced opposite to the reciprocating guide rail along the axis of the power shaft, and the balance guide rail is a closed curved guide rail surrounding the axis of the power shaft, And the wave crests and wave troughs of the balance guide rail are spaced apart along the axis of the power shaft; and the wave crests of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axial direction, and the wave troughs of the balance guide rail are opposite to the wave troughs of the balance guide rail along the axial direction. The wave crests of the reciprocating guide rail are opposite to each other; a balance body is provided on the balance guide rail, and the balance body and the moving body are arranged oppositely along the axis of the power shaft. When the power shaft rotates, the balance body and the Moving bodies move toward or away from each other.

In another embodiment, the plunger includes a connecting rod and a piston body. The piston body is connected to the reciprocating part through the connecting rod. The piston body is located in the volume chamber and can be moved in the volume chamber. The volume chamber moves back and forth, and the piston body separates the volume chamber into two compression spaces; there are two first channels and two second channels, and the two first channels are respectively connected with the two The compression spaces are connected, and the two second channels are connected with the two compression spaces respectively.

In another embodiment, the plunger pump further includes an installation shell, an installation cavity is formed in the installation shell, and the power shaft, the reciprocating part and the guide rod are all arranged in the installation cavity, The installation shell is connected to the pump body, one end of the connecting rod is inserted into the pump body and connected to the piston body, and the other end is inserted into the installation cavity.

In another embodiment, a water inlet channel is also formed in the spray joint, and the spray joint is installed on the pump body so that the first channel is connected with the water inlet channel.

In another embodiment, the pump device is a sprayer or a cleaning machine.

In the above-mentioned pump equipment, since the reciprocating part is driven by the power shaft, the plunger is connected to the reciprocating part, and the power When the source drives the power shaft to drive the plunger to reciprocate in the volume chamber through the reciprocating part, the fluid can be sucked into the volume chamber from the first channel and discharged from the second channel to achieve the purpose of pumping fluid. And because the pump body is connected to a guide rod, a guide sleeve is formed on the outer wall of the reciprocating part, and the guide rod is inserted into the guide sleeve, and the length direction of the guide rod is consistent with the reciprocating movement direction of the plunger. Furthermore, when the reciprocating part drives the plunger to reciprocate, the guiding cooperation between the guide rod and the guide sleeve can effectively ensure the stability of the plunger's reciprocating movement direction, thereby ensuring the stability of fluid pumping in and out.

Description of the drawings

The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some implementations of the utility model. For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Furthermore, the drawings are not drawn to a 1:1 scale, and the relative sizes of various elements in the drawings are drawn by way of example only and not necessarily to true scale. In the attached picture:

Figure 1 is a schematic structural diagram of a plunger pump in an embodiment;

Figure 2 is a cross-sectional view of the plunger pump shown in Figure 1;

Figure 3 is a cross-sectional view of the plunger pump shown in Figure 2 from another perspective;

Figure 4 is a schematic structural diagram of the reciprocating assembly in Figure 1;

Figure 5 is a partially exploded view of the reciprocating assembly shown in Figure 4;

Figure 6 is a schematic structural diagram of a pump device in an embodiment;

Figure 7 is a schematic structural diagram of a pump device in another embodiment;

Fig. 8 is a cross-sectional view of the pumping device shown in Fig. 7;

Explanation of reference symbols:

10. Plunger pump; 100. Pump assembly; 110. Pump body; 111. Volume chamber; 112. First channel; 113. Second channel; 120. Plunger; 122. Connecting rod; 124. Piston body; 130. Guide rod; 200, reciprocating component; 210, power source; 220, power shaft; 221, reciprocating groove; 222, connecting part; 230, reciprocating part; 231, guide bush; 232, wear-resistant sleeve; 233, moving body; 234 , reciprocating body; 235, matching sleeve; 236, ball; 240, reduction gear set; 300, installation shell; 310, installation cavity; 320, back cover; 321, rotation hole; 322, rolling bearing; 323, plane bearing; 20. Pump equipment; 202, spray joint; 204, water inlet channel; 206, water outlet channel.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation modes of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present invention. However, the present utility model can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without violating the connotation of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below. limit.

Referring to Figures 1 to 3, the plunger pump 10 in one embodiment of the present invention can at least ensure the stability of the pump fluid to a certain extent. Specifically, the plunger pump 10 includes a pump assembly 100 and a reciprocating assembly 200. The pump assembly 100 includes a pump body 110 and a plunger 120. A volume chamber 111 is formed in the pump body 110, and the pump body 110 A first channel 112 and a second channel 113 connected to the volume chamber 111 are formed on the outer wall of the The shaft 220 is driven and matched, and the plunger 120 is connected to the reciprocating part. 230. A guide rod 130 is connected to the pump body 110. A guide sleeve 231 is formed on the outer wall of the reciprocating member 230. The guide rod 130 is inserted into the guide sleeve 231 and can be positioned relative to the guide sleeve 231. The sleeve 231 moves, and the power source 210 is used to drive the power shaft 220 through the reciprocating member 230 to drive the plunger 120 to reciprocate in the volume chamber 111 so that the fluid can flow from the first channel 112 It is sucked into the volume chamber 111 and discharged from the second channel 113 , where the length direction of the guide rod 130 is consistent with the reciprocating direction of the plunger 120 .

Since the reciprocating part 230 is in transmission cooperation with the power shaft 220, the plunger 120 is connected to the reciprocating part 230, and the power source 210 drives the power shaft 220 through the reciprocating part 230 to drive the plunger 120 to reciprocate in the volume chamber 111, so that the fluid flows from the first The channel 112 is sucked into the volume chamber 111 and discharged from the second channel 113 to achieve the purpose of pumping fluid. And since the pump body 110 is connected to the guide rod 130, a guide sleeve 231 is formed on the outer wall of the reciprocating member 230. The guide rod 130 is inserted into the guide sleeve 231, and the length direction of the guide rod 130 is consistent with the reciprocating direction of the plunger 120. Furthermore, when the reciprocating member 230 drives the plunger 120 to reciprocate, the guide rod 130 and the guide sleeve 231 are used to guide and cooperate to effectively ensure the stability of the reciprocating movement direction of the plunger 120, thereby ensuring the stability of fluid pumping in and out.

In one embodiment, a wear-resistant sleeve 232 is provided in the guide sleeve 231 , and the guide rod 130 is inserted into the wear-resistant sleeve 232 . By providing the wear-resistant sleeve 232, direct friction between the guide rod 130 and the guide sleeve 231 is avoided. In another embodiment, a linear bearing can also be provided in the guide sleeve 231, and the guide rod 130 is inserted into the linear bearing. The linear bearing is used to make the guide rod 130 slide smoothly in the guide sleeve 231 .

In this embodiment, the guide rod 130 is a cylindrical rod, and the guide sleeve 231 is a cylindrical hole. In other embodiments, the guide rod 130 can also be a rectangular rod, and the guide sleeve 231 can have a rectangular hole.

In one embodiment, the number of the guide bushes 231 is at least two, and each of the guide bushes 231 is spaced around the axis of the power shaft 220 . The number of the guide rods 130 is consistent with the number of the guide bushes 231 . Each guide rod 130 is correspondingly inserted into one of the guide sleeves 231 . By providing at least two guide bushings 231 Cooperating with the guide rod 130 can further improve the stability of the guide for the reciprocating movement of the plunger 120 .

Referring to Figures 4 and 5, in one embodiment, the power shaft 220 is provided with a reciprocating guide rail. The reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft 220, and the wave crest of the curved guide rail is equal to Wave troughs are arranged at intervals along the axis of the power shaft 220; the reciprocating member 230 includes a moving body 233 and a reciprocating body 234. The reciprocating body 234 is sleeved on the power shaft 220, and the moving body 233 is located on the reciprocating body. between the body 234 and the power shaft 220, and the moving body 233 is limited to the reciprocating body 234 and guided on the reciprocating guide rail, the power source 210 is used to drive the power shaft 220 to rotate, To make the moving body 233 move on the reciprocating guide rail, the plunger 120 is connected to the reciprocating body 234, and the guide sleeve 231 is formed on the outer wall of the reciprocating body 234; wherein the reciprocating body 234 The reciprocating direction is consistent with the axis direction of the power shaft 220 .

In this embodiment, the reciprocating guide rail is a reciprocating groove 221. The reciprocating groove 221 is a closed curved groove surrounding the axis of the power shaft 220. The moving body 233 is limited to the reciprocating body 234 and passes through it. In the reciprocating groove 221 , the moving body 233 can move in the reciprocating groove 221 .

When the power shaft 220 rotates, the movable body 233 can move in the reciprocating groove 221, so that the movable body 233 can move between the peaks and troughs of the curved groove, so as to realize the axial direction of the movable body 233 along the power shaft 220. For the purpose of reciprocating movement, the reciprocating body 234 drives the plunger 120 to reciprocate along the axis direction of the power shaft 220 . The rotational motion of the power shaft 220 is converted into the linear motion of the reciprocating body 234, and there will be no yaw intersection problem like the crank structure or the eccentric drive structure, and the work stability is better.

In another embodiment, the reciprocating guide rail is a guide protrusion, and the guide protrusion is a closed strip-shaped curved protrusion surrounding the axis of the power shaft 220, and the peaks and troughs of the curved protrusion are spaced apart along the axis of the power shaft 220; moving The body 233 is disposed on the guide protrusion and can move along the length direction on the guide protrusion.

In one embodiment, there are at least two reciprocating guide rails, and each reciprocating guide rail is along the axis of the power shaft 220 They are arranged at intervals, and at least one moving body 233 is provided on each reciprocating guide rail. By arranging at least two reciprocating guide rails, the stability of the movement of the plunger 120 driven by the moving body 233 can be improved.

In another embodiment, the power shaft 220 is also provided with a balance guide rail that is arranged opposite to the reciprocating guide rail along the axis of the power shaft 220. The balance guide rail is a closed curve guide rail surrounding the axis of the power shaft 220, and the wave crest of the balance guide rail is The wave troughs are arranged at intervals along the axis of the power shaft 220; and the wave crests of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axial direction, and the wave troughs of the balance guide rail are opposite to the wave crests of the reciprocating guide rail along the axial direction. A balance body is provided on the balance guide rail. The balance body and the moving body 233 are arranged oppositely along the axis of the power shaft 220. When the power shaft 220 rotates, the balance body and the moving body 233 move toward or away from each other. By arranging the balance guide rail and the balance body, the two-way acceleration during the movement of the balance body and the moving body 233 can be offset, thereby reducing the vibration caused by acceleration.

Specifically, the balance guide rail has the same structure as the reciprocating guide rail, and the balance guide rail is symmetrically arranged along the circumference of the power shaft relative to the reciprocating guide rail. In this embodiment, the balance body and the moving body 233 have the same structure.

In this embodiment, the number of moving bodies 233 provided on a reciprocating guide rail is at least two. Each of the moving bodies 233 is spaced around the axis of the power shaft 220 , and the power shaft 220 can drive each of the moving bodies 233 . The moving body 233 moves in the same direction. Specifically, there are two moving bodies 233 , and the two moving bodies 233 are symmetrically arranged around the axis of the power shaft 220 . When the power shaft 220 rotates, it can drive the two moving bodies 233 to move in the same direction, and the two moving bodies 233 are both limited to the reciprocating body 234 . The two moving bodies 233 can further improve the stability of the transmission. In other embodiments, the number of moving bodies 233 may also be one, three, or other numbers.

In one embodiment, the moving body 233 is a sphere, and the moving body 233 can roll in the reciprocating groove 221 . By arranging the moving body 233 as a sphere, the friction force of the moving body 233 when moving can be reduced.

In one embodiment, the reciprocating member 230 further includes a matching sleeve 235, which is sleeved on the moving member. The moving body 233 is installed on the reciprocating body 234. A plurality of rolling balls 236 are provided between the moving body 233 and the inner wall of the matching sleeve 235. The moving body 233 is a sphere and is relatively opposite to the moving body 233. The matching sleeve 235 can be rolled. Specifically, the plurality of balls 236 are in contact with the side of the moving body 233 facing away from the power shaft 220 . When the moving body 233 rolls relative to the matching sleeve 235, multiple balls 236 are used to further reduce the rolling friction, improve the rolling smoothness of the moving body 233, and ensure the stability of the transmission.

Specifically, the reciprocating body 234 is provided with a reciprocating hole, and the outer wall of the reciprocating body 234 is provided with a mounting hole connected to the reciprocating hole. The power shaft 220 is inserted into the reciprocating hole. A mounting plate is provided at one end of the matching sleeve 235 , and the matching sleeve 235 is inserted into the mounting hole, so that the mounting plate contacts and is installed on the outer wall of the reciprocating body 234 . Among them, the moving body 233 can pass through the installation hole, and the matching sleeve 235 passes through the mounting hole, and is contacted and installed on the outer wall of the reciprocating body 234 through the mounting plate, so that the moving body 233 and the matching sleeve 235 are mounted on the reciprocating body 234. assembly.

In one embodiment, the number of the moving bodies 233 is at least two, and the number of the matching sleeves 235 is consistent with the number of the moving bodies 233. Each of the moving bodies 233 passes through one of the matching sleeves. 235 is installed on the reciprocating body 234. Each moving body 233 is limited to the reciprocating body 234 through a matching sleeve 235, which not only ensures the stability of the connection between the moving body 233 and the reciprocating body 234, but also ensures the smooth rolling of each moving body 233.

Specifically, one guide sleeve 231 is provided between every two adjacent matching sleeves 235 . Each guide sleeve 231 is provided with a guide rod 130 therein. The matching installation of the guide rod 130 and the guide bushing 231 utilizes the space between the two matching bushings 235 to avoid affecting the installation of the matching bushing 235 on the reciprocating body 234, and to avoid causing trouble due to the placement of the guide bushing 231 in the direction where the matching bushing 235 is provided. Further increase the size in this direction.

In this embodiment, there are two matching sleeves 235 , and the two matching sleeves 235 are symmetrically arranged around the axis of the power shaft 220 . There are two guide sleeves 231 , and the two guide sleeves 231 are symmetrically arranged around the axis of the power shaft 220 . By symmetrically arranging the matching sleeve 235 and the guide sleeve 231, it can be ensured that the power shaft 220 drives the reciprocating body 234 to reciprocate. The force is balanced during the movement to further ensure the stability during the transmission process.

Referring again to FIGS. 2 and 3 , in one embodiment, the plunger 120 includes a connecting rod 122 and a piston body 124 . The piston body 124 is connected to the reciprocating member 230 through the connecting rod 122 . 124 is located in the volume chamber 111 and can move back and forth in the volume chamber 111, and the piston body 124 separates the volume chamber 111 into two compression spaces; the first channel 112 and the third There are two channels 113 each. The two first channels 112 are connected to the two compression spaces respectively, and the two second channels 113 are connected to the two compression spaces respectively.

When the connecting rod 122 drives the piston body 124 to move back and forth, it can cyclically change the size of the two compression spaces. If the piston body 124 moves toward a compression space and compresses, the fluid in the compression space can pass through the second channel connected to the compression space. 113 is pumped out; while the volume of another compression space increases, the fluid is pumped into the compression space through the first channel 112 connected with the compression space, and the piston body 124 further moves to compress the compression space, so that the fluid is pumped into the compression space through the first channel 112 connected with the compression space. The second channel 113 pumps out and circulates like this to achieve the effect of a double-action pump.

In another embodiment, the plunger 120 is disposed in the volume chamber 111, and a compression space is formed only on the side of the plunger 120 facing away from the reciprocating member 230. There is only one compression space, the first channel 112 and the second channel. 113 is connected with the compression space to achieve the effect of a single-action pump.

In this embodiment, one-way valves are provided in both the first channel 112 and the second channel 113 to ensure the flow direction of the fluid during the fluid pumping process.

In one embodiment, the plunger pump 10 further includes an installation shell 300. An installation cavity 310 is formed in the installation shell 300. The power shaft 220, the reciprocating member 230 and the guide rod 130 are all arranged in the installation cavity. In the cavity 310, the installation shell 300 is connected to the pump body 110. One end of the connecting rod 122 is passed through the pump body 110 and connected to the piston body 124, and the other end is passed through the installation cavity. Within 310. The installation shell 300 is provided to accommodate the power shaft 220, the reciprocating member 230 and the guide rod 130, ensuring that the power shaft 220 drives the The stability of the reciprocating movement of the reciprocating part 230,

In another embodiment, the installation shell 300 can also be omitted, and an installation cavity 310 can be formed in the pump body 110. The installation cavity 310 is connected with the volume chamber 111, and the reciprocating part 230, the power shaft 220 and the guide rod 130 are all arranged in the installation cavity. In the cavity 310 , the plunger 120 is inserted into the volume cavity 111 from the installation cavity 310 .

In one embodiment, the plunger pump 10 further includes a back cover 320. The installation cavity 310 opens on a side facing away from the plunger 120. The back cover 320 covers the opening of the installation cavity 310, and the back cover 320 is disposed on the opening of the installation cavity 310. A rotation hole 321 is provided in the rotation hole 320 . One end of the power shaft 220 is connected to a connecting portion 222 . The connecting portion 222 is inserted into the rotation hole 321 and connected to the power source 210 . Specifically, a rolling bearing 322 is provided between the connecting portion 222 and the inner wall of the rotation hole 321 . The rolling bearing 322 can reduce the friction between the connecting portion 222 and the inner wall of the rotation hole 321 to ensure the stability of the connecting portion 222 driving the power shaft 220 to rotate.

In this embodiment, the guide rod 130 is disposed in the installation cavity 310 . One end of the guide rod 130 is installed on the back cover 320 , and the other end is disposed on the inner wall of the installation cavity 310 opposite to the back cover 320 .

In one embodiment, the diameter of the power shaft 220 is larger than the diameter of the connecting portion 222 , and a plane bearing 323 is provided between the inner wall of the back cover 320 facing the installation cavity 310 and the power shaft 220 . The plane bearing 323 can effectively ensure the rotation of the power shaft 220 relative to the back cover 320 and ensure rotation stability. In this embodiment, the plane bearing 323 is a thrust ball bearing or a thrust needle roller bearing. In other embodiments, the power shaft 220 can also abut against the back cover 320 through other structures that can ensure its rotational stability relative to the back cover 320 .

In one embodiment, the power source 210 is connected to the power shaft 220 through a reduction gear set 240 . Specifically, the reduction gear set 240 is disposed on a side of the back cover 320 facing away from the installation cavity 310 .

In this embodiment, the power source 210 is a motor or motor. In other embodiments, the power source 210 may also be other power components capable of driving the power shaft 220 to rotate.

In one embodiment, the plunger pump 10 in any of the above embodiments may also be an electric diaphragm pump or a booster pump.

Referring to Figures 1, 2 and 6, in one embodiment, a pump device 20 includes the plunger pump 10 in any of the above embodiments.

Specifically, the pump equipment 20 also includes a spray joint 202, a water inlet channel 204 and a water outlet channel 206 are formed in the spray joint 202, and the spray joint 202 is installed on the pump body 110, so that the first The channel 112 is connected with the water inlet channel 204 , and the second channel 113 is connected with the water outlet channel 206 . By providing the spray joint 202, it is further facilitated that the fluid enters the pump body 110 through the water inlet channel 204 and is sprayed out through the water outlet channel 206, which is convenient for use.

In this embodiment, the pump device 20 is a cleaning machine. Specifically, the plunger pump 10 in this embodiment is a double-acting pump.

Referring to Figures 7 and 8, in this embodiment, the pump equipment 20 is a cleaning machine. Specifically, the plunger pump 10 in this embodiment is a single-acting pump.

Further, one end of the pump body 110 is formed with an installation cavity 310, and the other end is formed with a volume cavity 111 connected with the installation cavity 310. The power shaft 220 and the reciprocating part 230 are both arranged in the installation cavity 310, and the plunger 120 is inserted through the volume. inside cavity 111. The first channel 112 is formed on the side wall of the pump body 110 , and the second channel 113 is formed on one end of the pump body 110 where the volume chamber 111 is formed.

In one embodiment, only the water outlet channel 206 may be formed in the nozzle connector 202 , and the nozzle connector 202 is installed on the pump body 110 so that the second channel 113 is connected with the water outlet channel 206 .

In other embodiments, the pump device 20 may also be a sprayer. For example, it can be a high-pressure sprayer, a pesticide sprayer, a high-pressure sprayer or a high-pressure cleaning machine.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as these technical features There is no contradiction in the combination of technical features, and they should be considered to be within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be determined by the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" ", "radial direction", "circumferential direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply what is meant. Devices or components must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

In this utility model, unless otherwise expressly stipulated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements, unless otherwise Clear limits. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly stipulated and limited, the first feature is "on" the second feature. Or "under" may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

It should be noted that when an element is referred to as being "mounted" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

Claims

A kind of pump equipment, characterized in that the pump equipment includes a plunger pump and a spray joint;

The plunger pump includes a pump assembly and a reciprocating assembly. The pump assembly includes a pump body and a plunger. A volume chamber is formed in the pump body, and a third cavity connected to the volume chamber is formed on the outer wall of the pump body. A channel and a second channel; the reciprocating component includes a power source, a power shaft and a reciprocating part, the reciprocating part is transmission matched with the power shaft, the plunger is connected to the reciprocating part, and the pump body is connected to There is a guide rod, and a guide sleeve is formed on the outer wall of the reciprocating member. The guide rod is inserted into the guide sleeve and can move relative to the guide sleeve. The power source is used to drive the power shaft. The reciprocating part drives the plunger to reciprocate in the volume chamber, so that fluid can be sucked into the volume chamber from the first channel and discharged from the second channel, wherein the guide The length direction of the rod is consistent with the reciprocating direction of the plunger;

A water outlet channel is formed in the spray joint, and the spray joint is installed on the pump body so that the second channel is connected with the water outlet channel.
The pump equipment according to claim 1, wherein the power shaft is provided with a reciprocating guide rail, the reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft, and the wave crest of the curved guide rail It is spaced apart from the wave trough along the axis of the power shaft; the reciprocating part includes a moving body and a reciprocating body, the reciprocating body is sleeved on the power shaft, and the moving body is located between the reciprocating body and the power shaft. in between, and the moving body is limited on the reciprocating body and guided on the reciprocating guide rail. The power source is used to drive the power shaft to rotate so that the moving body moves on the reciprocating guide rail. The plunger is connected to the reciprocating body, and the guide sleeve is formed on the outer wall of the reciprocating body; wherein the reciprocating movement direction of the reciprocating body is consistent with the axis direction of the power shaft.
The pump equipment according to claim 2, wherein the reciprocating guide rail is a reciprocating groove, the reciprocating groove is a closed curved groove surrounding the axis of the power shaft, and the moving body is inserted through the reciprocating groove. in the groove, and the movable body can move in the reciprocating groove; the reciprocating part also includes a matching sleeve, the matching sleeve is set on the movable body and is installed on the reciprocating body. body and description A plurality of rolling balls are arranged between the inner walls of the matching sleeve. The moving body is a sphere and can roll relative to the matching sleeve.
The pump equipment according to claim 2, characterized in that the reciprocating body is provided with a reciprocating hole, the outer wall of the reciprocating body is provided with a mounting hole connected to the reciprocating hole, and the power shaft passes through A mounting plate is provided at one end of the matching sleeve in the reciprocating hole, and the matching sleeve is inserted into the mounting hole so that the mounting plate contacts and is installed on the outer wall of the reciprocating body.
The pump equipment according to claim 3, characterized in that the number of the guide sleeves is at least two, each of the guide sleeves is spaced around the axis of the power shaft, and the number of the guide rods is equal to the number of the guide rods. The number of guide bushes is the same, and each guide rod is correspondingly installed in one of the guide bushes.
The pump equipment according to claim 5, characterized in that the number of the moving bodies is at least two, each of the moving bodies is spaced around the axis of the power shaft, and the power shaft can drive each of the moving bodies. The movable bodies move in the same direction, and the number of the matching sleeves is consistent with the number of the movable bodies. Each of the movable bodies is installed on the reciprocating body through one of the matching sleeves, and each two adjacent ones A guide sleeve is provided between the matching sleeves.
The pump equipment according to claim 2, wherein the power shaft is further provided with a balance guide rail that is spaced opposite to the reciprocating guide rail along the axis of the power shaft, and the balance guide rail surrounds the power shaft. The closed curve guide rail of the shaft axis, and the wave peaks and wave troughs of the balance guide rail are arranged at intervals along the axis of the power shaft; and the wave peaks of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axis direction, and the balance guide rail The wave trough is opposite to the wave crest of the reciprocating guide rail along the axial direction; a balance body is provided on the balance guide rail, and the balance body and the moving body are arranged oppositely along the axis of the power shaft. When the power shaft rotates , the balance body and the moving body move toward or away from each other.
The pump equipment according to any one of claims 1 to 7, wherein the plunger includes a connecting rod and a piston body, the piston body is connected to the reciprocating part through the connecting rod, and the piston The body is located in The volume chamber is capable of reciprocating movement in the volume chamber, and the piston body separates the volume chamber into two compression spaces; there are two first channels and two second channels, The two first channels are respectively connected with the two compression spaces, and the two second channels are connected with the two compression spaces respectively.
The pump equipment according to claim 8, characterized in that the plunger pump further includes an installation shell, an installation cavity is formed in the installation shell, and the power shaft, the reciprocating part and the guide rod are all The connecting rod is disposed in the installation cavity, the installation shell is connected to the pump body, one end of the connecting rod is inserted into the pump body and connected to the piston body, and the other end is inserted into the installation cavity.
The pump equipment according to any one of claims 1 to 7, characterized in that a water inlet channel is also formed in the spray joint, and the spray joint is installed on the pump body so that the first The channel is connected with the water inlet channel.
The pump equipment according to any one of claims 1 to 7, characterized in that the pump equipment is a sprayer or a cleaning machine.