A high pressure pump driven by a series excited motor

Abstract

The application discloses a high-pressure pump driven by a series-excited motor, which comprises a pump body and a base, a rotating assembly is rotatably arranged in the pump body, the rotating assembly comprises a rotating shaft and a driving disc connected with the rotating shaft, a plunger assembly is arranged below the driving disc, a plunger hole and a water flow channel are arranged on the base, and the plunger assembly is used for extruding water in the plunger hole into the water flow channel; a water inlet pipe and a water outlet pipe are arranged on the base, the water outlet pipe and the water inlet pipe are communicated through the water flow channel, an adapter is arranged on the water outlet pipe, at least one slot is arranged in the side wall of the adapter, a limiting assembly is arranged in the slot, and the limiting assembly is at least partially arranged in the adapter. The adapter pipe can be clamped with the water outlet pipe through the limiting rods, the gap between the limiting rods can be manually adjusted through the convex portions, so that the adapter pipe can quickly separate from the limiting effect of the limiting rods; the utility model can realize quick connection and quick disassembly of the adapter pipe, and has the advantages of simple operation, good stability and the like.

Description

Technical Field

[0001] This application relates to the field of high-pressure water pump technology, and in particular to a high-pressure pump driven by a series-wound motor. Background Technology

[0002] A high-pressure pump is a common machine that increases water pressure. Its main function is in high-pressure cleaning. Water enters the pump through the inlet pipe and is pressurized. The water is then discharged through the outlet pipe, using high-pressure water to clean dirt from object surfaces. Currently, the main working principle of a high-pressure pump is that a motor drives an internal plunger rod to reciprocate, forcing water into the water flow channel and converting the mechanical energy of the plunger's movement into the kinetic energy of the water.

[0003] High-pressure pumps typically have an external water pipe connected to their outlet. Traditionally, the water pipe of a high-pressure pump is fixedly connected to the outlet pipe. When storing the pump, the water pipe needs to be wrapped around the pump body, which not only increases the overall space occupied by the pump but also easily causes the water pipe to tangle. Furthermore, replacing the water pipe is cumbersome. Therefore, there is an urgent need for a high-pressure pump that allows for quick installation and removal of the water pipe. Utility Model Content

[0004] One objective of this application is to provide a high-pressure pump driven by a series-wound motor that can solve at least one of the defects in the aforementioned background technology.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a high-pressure pump driven by a series-wound motor, comprising a pump body and a base, wherein a rotating assembly is rotatably mounted in the pump body, the rotating assembly comprising a rotating shaft and a drive disk connected to the rotating shaft, a plunger assembly is mounted below the drive disk, and a plunger hole and a water flow channel are provided on the base, the plunger assembly being used to squeeze water in the plunger hole into the water flow channel; an inlet pipe and an outlet pipe are provided on the base, the outlet pipe and the inlet pipe being connected through the water flow channel, an adapter is provided on the outlet pipe, and at least one slot is provided on the side wall of the adapter, a limiting component is installed in the slot, the limiting component being at least partially located inside the adapter.

[0006] With the above setup, water can enter the plunger hole through the inlet pipe. The plunger assembly uses reciprocating motion to squeeze the water in the plunger hole into the water flow channel and form high-pressure water. Then, the high-pressure water is discharged through the outlet pipe. The adapter on the outlet pipe is used to connect an external water pipe. The water pipe can be quickly installed through the limiting structure. In this way, not only is the installation and disassembly speed of the water pipe improved, but the connection stability between the water pipe and the high-pressure pump can also be improved through the limiting structure.

[0007] Preferably, the pump also includes a series-wound motor, the drive rod of which engages with the rotating shaft. The series-wound motor drives the rotating shaft to synchronously rotate the drive disc, and the drive disc is inclined within the pump body. With this configuration, the series-wound motor drives the drive disc to rotate. Because the drive disc is inclined, when it rotates, the lowest point of the drive disc presses against the plunger assembly and causes it to move downwards, thereby pressurizing the water in the plunger orifice.

[0008] Preferably, a turntable is fixedly mounted on the rotating shaft, and a drive wheel is provided on the drive rod of the series-wound motor. The mating surfaces of the drive wheel and the turntable are provided with mutually cooperating gear structures. With this configuration, the turntable and the drive wheel rotate synchronously through the cooperating gears, ensuring that the series-wound motor can drive the rotating shaft to rotate.

[0009] Preferably, the limiting component includes a limiting rod, which is elastic, and an adapter tube is detachably installed inside the adapter. The limiting rod is used to limit the adapter tube. With this configuration, when the adapter tube extends into the adapter, it squeezes and passes over the limiting rod to connect with the outlet pipe, while the limiting rod, under its own elastic force, limits the adapter tube.

[0010] Preferably, there are two slots, symmetrically arranged. The limiting rod comprises two rod bodies, each installed within one of the two slots. The limiting rod adjusts the lateral space inside the adapter through its own deformation. This arrangement further enhances the limiting effect on the adapter through the two symmetrical rod bodies.

[0011] Preferably, the outer wall of the adapter is provided with a protrusion, which is trapezoidal in shape. The narrow end of the protrusion is fixedly connected to the adapter, and the two rods of the limiting rod are respectively located on both sides of the protrusion. The protrusion is suitable for spreading the two rods apart and causing them to deform. With this configuration, the two rods of the limiting rod can be squeezed by the protrusion. When it is necessary to disassemble the adapter, the limiting rod can be moved in the direction close to the protrusion. As the size of the protrusion gradually increases, the gap between the two rods of the limiting rod will also increase. When the gap between the two rods is greater than the width of the adapter, the limiting state of the adapter is released.

[0012] Preferably, the adapter tube is provided with an annular groove, which is used to engage with the limiting rod. This design further enhances the limiting effect on the adapter tube through the engaging engagement of the limiting rod and the annular groove. The design of the annular groove allows the adapter tube to be quickly engaged without adjusting the angle during insertion.

[0013] Preferably, the end of the adapter pipe is provided with a transition ring. The sidewall of the transition ring is inclined, and the cross-section of the transition ring gradually increases along the direction of the annular groove. The transition ring is used to compress the limiting rod to deform within the groove. With this configuration, when the adapter pipe needs to be installed, it can be directly inserted into the adapter, and the limiting rod is deformed by the inclined surface of the transition ring, allowing the limiting rod to pass over the transition ring and enter the annular groove. Since there is a height difference between the transition ring and the annular groove, when the limiting rod is located within the annular groove, even if the adapter pipe is subjected to an outward pulling force, the transition ring can prevent the limiting rod from detaching from the annular groove. This not only reduces the installation difficulty of the adapter pipe but also ensures its installation stability.

[0014] Preferably, a plug extends outward from the end of the transition ring with a smaller cross-section, and the plug passes through the adapter and extends into the outlet pipe. This configuration allows high-pressure water from the outlet pipe to enter the adapter pipe for operation via the plug-in connection with the outlet pipe.

[0015] Preferably, a sealing ring is installed on the side wall of the plug. This configuration further improves the sealing effect between the plug and the water outlet pipe, preventing high-pressure water from flowing to the outside through the gap between the plug and the water outlet pipe.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: The adapter pipe can be connected to the outlet pipe via a limiting rod. The limiting rod engages with the annular groove to limit the adapter pipe's position. The inclined surface of the transition ring can compress and deform the limiting rod, allowing it to pass over the transition ring and enter the annular groove. The height difference between the transition ring and the annular groove prevents the adapter pipe from detaching from the limiting rod, further improving the connection stability of the adapter pipe.

[0017] The gap between the limiting rods can be manually adjusted by the protrusion. When disassembling the adapter pipe, the limiting rods can be opened by the inclined surface of the protrusion, so that the adapter pipe can quickly get out of the limiting rod's limiting effect. This utility model can realize the external connection and quick disassembly of the adapter pipe, and has the advantages of simple operation and good stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the high-pressure pump in this application.

[0019] Figure 2 This is a partial cross-sectional structural diagram of the high-pressure pump in this application.

[0020] Figure 3 This is a schematic diagram of the base structure in this application.

[0021] Figure 4 This is a schematic diagram of the installation structure of the limit rod and adapter in this application.

[0022] Figure 5 This is a schematic diagram of the transfer and takeover structure in this application.

[0023] In the diagram: 1. Pump body; 100. Drive wheel; 2. Base; 21. Inlet pipe; 22. Outlet pipe; 23. Plunger hole; 24. Water flow channel; 200. Turntable; 3. Series-wound motor; 31. Drive rod; 300. Limiting rod; 301. Engaging section; 302. Handle; 4. Rotating assembly; 41. Rotating shaft; 42. Drive disc; 400. Plunger assembly; 5. Adapter; 51. Groove; 52. Protrusion; 500. Sealing ring; 6. Adapter pipe; 61. Annular groove; 62. Transition ring; 63. Plug. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] One aspect of this application provides a high-pressure pump driven by a series-wound motor, one preferred embodiment of which is, for example... Figure 1 and Figure 2As shown, the pump includes a pump body 1 and a base 2. A rotating assembly 4 is installed inside the pump body 1. The rotating assembly 4 includes a rotating shaft 41 and a drive disk 42 fixedly connected to the rotating shaft 41. A plunger assembly 400 is installed below the drive disk 42. The base 2 has a plunger hole 23 and a water flow channel 24 that are interconnected. The plunger assembly 400 is slidably installed inside the pump body 1 and can extend into / out of the plunger hole 23. When the high-pressure pump is running, the rotating assembly 4 drives the plunger assembly 400 to reciprocate, squeezing the water in the plunger hole 23 into the water flow channel 24 to form high-pressure water. The base 2 also has an inlet pipe 21 and an outlet pipe 22. The inlet pipe 21 is connected to the plunger hole 23, and the water flow channel 24 is connected to the outlet pipe 22. Water in the outlet pipe 22 can enter the plunger hole 23 to form high-pressure water, while the high-pressure water in the water flow channel 24 is discharged through the outlet pipe 22.

[0029] Furthermore, such as Figure 3 As shown, an adapter 5 is installed on the water outlet pipe 22. A groove 51 is provided on the side of the adapter 5, and a limiting component is installed inside the groove 51, with part of the limiting component located inside the adapter 5. When the high-pressure pump is working, water can be connected to an external water pipe through the adapter 5 to drain water from the pump into the water pipe. The outlet of the water pipe can then be aligned with the object to be cleaned. The limiting component is used to fix the external water pipe. When the water pipe is connected to the adapter 5, the limiting component can lock the water pipe in place. This not only improves the speed of water pipe installation and disassembly but also enhances the connection stability between the water pipe and the high-pressure pump through the limiting structure.

[0030] In this embodiment, as Figure 2 As shown, the high-pressure pump also includes a series-wound motor 3, which is fixedly installed in the pump body 1. The drive rod 31 of the series-wound motor 3 extends into the pump body 1 and works in conjunction with the rotating shaft 41, thereby driving the rotating shaft 41 to drive the drive disc 42 to rotate synchronously. In addition, in order to ensure that the drive disc 42 can drive the plunger assembly 400 to reciprocate through rotation, the drive disc 42 is tilted in the pump body 1, so that there is a certain angle between the drive disc 42 and the plunger assembly 400. This ensures that when the drive disc 42 rotates, the lowest point of the drive disc 42 will squeeze the plunger assembly 400 and make it move downward, thereby pressurizing the water in the plunger hole 23.

[0031] Specifically, such as Figure 2As shown, a turntable 200 is fixedly mounted on the rotating shaft 41, and a drive wheel 100 is provided on the drive rod 31 of the series-wound motor 3. The mating surfaces of the drive wheel 100 and the turntable 200 are provided with mutually engaging gear structures, enabling the turntable 200 to rotate synchronously with the drive wheel 100. When the series-wound motor 3 starts, the drive rod 31 drives the drive wheel 100 to rotate. At this time, the turntable 200, in a meshing state with the drive wheel 100, drives the rotating shaft 41 to rotate synchronously, thereby causing the plunger assembly 400 to perform reciprocating motion.

[0032] It should be noted that the speed ratio between the drive wheel 100 and the turntable 200 can be adjusted by the number of gears on both. To achieve a higher upper speed limit for the turntable 200, the number of gears on the drive wheel 100 can be increased. Conversely, to reduce the overall size of the high-pressure pump, the number of gears on the drive wheel 100 can be reduced, thereby decreasing the overall size of the drive wheel 100 and the space it occupies within the pump body 1.

[0033] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, the limiting assembly includes a limiting rod 300, which is elastic. A connecting pipe 6 is detachably installed inside the adapter 5. The limiting rod 300 is used to limit the connection of the connecting pipe 6 to ensure its stability. When the connecting pipe 6 is inserted into the adapter 5, it squeezes and passes over the limiting rod 300 to connect with the outlet pipe 22. Subsequently, the limiting rod 300 applies pressure to the connecting pipe 6 under its own elasticity, thus limiting the connection of the connecting pipe 6.

[0034] Specifically, such as Figure 4 As shown, there are two slots 51, symmetrically arranged on the side of the adapter 5. The limiting rod 300 includes two rods, each installed in one of the two slots 51. The two rods work together to change the lateral space inside the adapter 5, and the gap between the two rods forms the channel for the adapter pipe 6. When the adapter rod is inserted into the adapter 5, the end of the adapter pipe 6 presses against the rods on both sides, increasing the gap between the two rods, thus allowing the adapter pipe 6 to pass over the limiting rod 300 and connect to the outlet pipe 22. The two symmetrical rods further enhance the limiting effect of the limiting rod 300 on the adapter pipe 6.

[0035] It should be noted that, in order to ensure that the limiting rod 300 has sufficient deformation space, the slot 51 can be set as a hollow structure, which can not only increase the maximum deformation space of the limiting rod 300, but also effectively reduce the thickness of the adapter 5.

[0036] Furthermore, such as Figure 3As shown, to further improve the installation and disassembly speed of the adapter pipe 6, the outer wall of the adapter 5 is provided with a protrusion 52. The protrusion 52 is trapezoidal and is fixedly connected to the adapter 5 through its narrow end. The two rods of the limiting rod 300 are located on both sides of the protrusion 52. The protrusion 52 is used to open up the rods on both sides of the limiting rod 300, thereby improving the disassembly speed of the adapter pipe 6. When it is necessary to disassemble the installation pipe, the limiting rod 300 can be moved towards the protrusion 52. Since the size of the protrusion 52 gradually increases, the gap between the rods on both sides of the limiting rod 300 will also increase during the movement. When the gap between the two rods is greater than the width of the adapter pipe 6, the limiting state of the adapter pipe 6 can be released, so that the user can easily remove the adapter pipe 6. Of course, when installing the adapter pipe 6, the protrusion 52 can be used to open the limiting rod 300 before inserting the adapter pipe 6 into the adapter 5, and then the limiting rod 300 can be reset to limit the adapter pipe 6.

[0037] As a supplement, the limiting rod 300 is an integrated structure. The rods on both sides of the limiting rod 300 are the two sides of the limiting rod 300. The two ends of the limiting rod 300 are folded outward to form a locking section 301 and a support hand 302, respectively. The locking section 301 is used to slide on the inclined surface of the protrusion 52, causing the limiting rod 300 to deform and thus increasing the gap between the two rods of the limiting rod 300. The support hand 302 is used to fit against the user's palm to improve the user's comfort and prevent the pointed part of the limiting rod 300 from poking the user's palm.

[0038] It should be understood that relying solely on the radial pressure of the limiting rod 300 on the adapter tube 6 may not provide a very stable limiting effect. If the surface of the adapter tube 6 is relatively smooth, the adapter tube 6 may come out of the limiting rod 300's control during the pulling process.

[0039] Therefore, in view of the above situation, in some embodiments of this application, such as Figure 3 and Figure 5 As shown, the part of the adapter tube 6 used to connect the adapter 5 is provided with a groove, more preferably an annular groove 61. The adapter tube 6 is limited by the snap-fit ​​cooperation between the annular groove 61 and the limiting rod 300, thereby further improving the limiting effect of the adapter tube 6. The design of the annular groove 61 allows the adapter tube 6 to be snapped in quickly without adjusting the angle when plugged in.

[0040] Furthermore, such as Figure 5As shown, a transition ring 62 is provided at the end of the adapter pipe 6. The sidewall of the transition ring 62 is inclined, and the cross-section of the transition ring 62 gradually increases along the direction of the annular groove 61. The transition ring 62 deforms within the groove 51 by pressing the limiting rod 300 through the inclined surface. When it is necessary to install the adapter pipe 6, the adapter pipe 6 can be directly inserted into the adapter 5, and the limiting rod 300 is deformed by pressing the limiting rod 300 through the inclined surface of the transition ring 62, so that the limiting rod 300 can pass over the transition ring 62 and enter the annular groove 61.

[0041] Specifically, there is a height difference between the transition ring 62 and the annular groove 61. When the limiting rod 300 is located in the annular groove 61, even if the adapter pipe 6 is subjected to an outward pulling force, the transition ring 62 can prevent the limiting rod 300 from leaving the annular groove 61. This not only reduces the installation difficulty of the adapter pipe 6, but also ensures the connection stability of the adapter pipe 6.

[0042] In this embodiment, as Figure 3 and Figure 5 As shown, the smaller cross-section end of the transition ring 62 extends outward with a plug 63 that communicates with the interior of the adapter pipe 6. The plug 63 passes through the adapter 5 and extends into the water outlet pipe 22. The plug 63 and the water outlet pipe 22 are connected to allow high-pressure water in the water outlet pipe 22 to enter the adapter pipe 6 for operation. In addition, a sealing ring 500 is installed on the side wall of the plug 63 to improve the sealing effect between the plug 63 and the water outlet pipe 22, preventing high-pressure water from flowing to the outside through the gap between the plug 63 and the water outlet pipe 22.

[0043] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A high-pressure pump driven by a series-wound motor, comprising a pump body (1) and a base (2), characterized in that, A rotating assembly (4) is rotatably installed inside the pump body (1). The rotating assembly (4) includes a rotating shaft (41) and a drive disk (42) connected to the rotating shaft (41). A plunger assembly (400) is installed below the drive disk (42). A plunger hole (23) and a water flow channel (24) are provided on the base (2). The plunger assembly (400) is used to squeeze the water in the plunger hole (23) into the water flow channel (24). The base (2) is provided with an inlet pipe (21) and an outlet pipe (22). The outlet pipe (22) and the inlet pipe (21) are connected through the water flow channel (24). The outlet pipe (22) is provided with an adapter (5). The side wall of the adapter (5) is provided with at least one slot (51). A limiting component is installed in the slot (51). The limiting component is at least partially located inside the adapter (5).

2. The high-pressure pump driven by a series-wound motor as described in claim 1, characterized in that, It also includes a series motor (3), the drive rod (31) of the series motor (3) cooperates with the rotating shaft (41), the series motor (3) is used to drive the rotating shaft (41) to drive the drive disk (42) to rotate synchronously, and the drive disk (42) is inclined inside the pump body (1).

3. The high-pressure pump driven by a series-wound motor as described in claim 2, characterized in that, A turntable (200) is fixedly installed on the rotating shaft (41), and a drive wheel (100) is provided on the drive rod (31) of the series motor (3). A gear structure that cooperates with each other is provided on the mating surface of the drive wheel (100) and the turntable (200).

4. The high-pressure pump driven by a series-wound motor as described in claim 1, characterized in that, The limiting component includes a limiting rod (300) which is elastic, and a connecting pipe (6) is detachably installed inside the adapter (5). The limiting rod (300) is used to limit the connecting pipe (6).

5. The high-pressure pump driven by a series-wound motor as described in claim 4, characterized in that, The number of slots (51) is two, and the two slots (51) are symmetrically arranged. The limiting rod (300) includes two rods, which are respectively installed in the two slots (51). The limiting rod (300) adjusts the lateral space inside the adapter (5) by its own deformation.

6. The high-pressure pump driven by a series-wound motor as described in claim 5, characterized in that, The outer wall of the adapter (5) is provided with a protrusion (52), the protrusion (52) is trapezoidal, the narrow end of the protrusion (52) is fixedly connected to the adapter (5), and the two rods of the limiting rod (300) are respectively located on both sides of the protrusion (52). The protrusion (52) is suitable for spreading the two rods and causing them to deform.

7. The high-pressure pump driven by a series-wound motor as described in claim 4, characterized in that, The adapter tube (6) is provided with an annular groove (61), which is used to engage with the limiting rod (300).

8. The high-pressure pump driven by a series-wound motor as described in claim 7, characterized in that, The end of the adapter pipe (6) is provided with a transition ring (62). The side wall of the transition ring (62) is inclined, and the cross-section of the transition ring (62) gradually increases along the direction of the annular groove (61). The transition ring (62) is used to squeeze the limiting rod (300) to deform in the slot (51).

9. The high-pressure pump driven by a series-wound motor as described in claim 8, characterized in that, The smaller cross-section end of the transition ring (62) extends outward with a plug (63), which passes through the adapter (5) and extends into the water outlet pipe (22).

10. The high-pressure pump driven by a series-wound motor as described in claim 9, characterized in that, A sealing ring (500) is installed on the side wall of the plug (63).

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