Pressure regulating device

Abstract

The utility model discloses a kind of pressure regulating devices, it includes: connecting joint, valve assembly and adjusting structure, connecting joint is used to connect plunger pump, the connecting joint is provided with first flow passage;Valve assembly is connected with the connecting joint, the valve assembly includes valve core and second flow passage, the first flow passage is connected to the valve assembly and can be communicated with the second flow passage;The valve core can be moved relative to the connecting joint and change the fluid pressure difference between the first flow passage and the second flow passage;Adjusting structure is connected with the valve core, the adjusting structure can drive the valve core movement relative to the connecting joint. By driving valve core movement, it is simple, direct to reach the effect of changing fluid pressure difference, so the pressure regulation of plunger pump analog working condition can be conveniently and quickly changed, so that the test operation of plunger pump can be more convenient and efficient, to effectively provide convenience for plunger pump production process.

Description

Technical Field

[0001] This utility model relates to the field of testing plunger pumps, and in particular to a pressure regulating device. Background Technology

[0002] As is well known, during the production of electric plunger pumps, it is necessary to test parameters such as the reliability of the pump's seals and the pressure that the pump's materials and structure can withstand during continuous operation under high pressure. Therefore, it is necessary to test the sealing and pump efficiency of electric plunger pumps under different water pressure conditions. However, the existing testing process for plunger pumps usually suffers from the problem of cumbersome water pressure adjustment. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a pressure regulating device that enables simple and convenient testing of plunger pumps.

[0004] A pressure regulating device according to a first aspect of the present invention includes: a connecting joint, a valve assembly, and an adjusting structure. The connecting joint is used to connect to a plunger pump and is provided with a first flow channel. The valve assembly is connected to the connecting joint and includes a valve core and a second flow channel. The first flow channel is connected to the valve assembly and can communicate with the second flow channel. The valve core is movable relative to the connecting joint and changes the fluid pressure difference between the first flow channel and the second flow channel. The adjusting structure is connected to the valve core and can drive the valve core to move relative to the connecting joint.

[0005] The pressure regulating device according to the embodiments of this utility model has at least the following beneficial effects: the plunger pump can be placed in a water tank, and a connecting joint is installed at the outlet end of the pump, so that the fluid in the water tank can flow from the first flow channel to the second flow channel, thereby forming a pipeline simulating actual working conditions. Then, the valve core can be moved by adjusting the structure, thereby changing the fluid pressure difference between the first and second flow channels, thus enabling testing of the plunger pump under different pressure conditions.

[0006] By driving the valve core to move, the fluid pressure difference can be changed simply and directly. Therefore, the pressure regulation of the plunger pump under simulated working conditions can be changed conveniently and quickly, making the testing of the plunger pump more convenient and efficient, and thus effectively facilitating the production process of the plunger pump.

[0007] According to some embodiments of the present invention, the valve assembly is connected to a detector capable of detecting the fluid pressure within at least one of the first flow channel and the second flow channel.

[0008] According to some embodiments of the present invention, the valve assembly includes a first valve body and a second valve body, the valve core is movably mounted on the first valve body, and the detector is mounted on the second valve body; the first valve body, the second valve body, and the connecting joint are connected in sequence, and the second flow channel is disposed in the first valve body.

[0009] According to some embodiments of the present invention, the valve assembly includes a first valve body, and both the first flow channel and the second flow channel are connected to the first valve body; a push spring is provided inside the first valve body, the push spring is connected to the valve core and can push it to close at least one of the first flow channel and the second flow channel; fluid flowing from the first flow channel toward the second flow channel can push the valve core, causing the valve core to move against the elastic force of the push spring.

[0010] According to some embodiments of the present invention, the adjusting structure includes an adjusting rod movably disposed in the first valve body, at least a portion of the adjusting rod extending into the first valve body; the adjusting rod and the valve core are respectively connected to the two ends of the push spring, and the adjusting rod can move closer to or further away from the valve core.

[0011] According to some embodiments of the present invention, the first valve body includes a valve cover and a sealing seat, a portion of the adjusting rod passes through the valve cover and the sealing seat and is connected to the valve core, and the sealing seat is used to provide a relative seal between the valve cover and the valve core.

[0012] According to some embodiments of the present invention, a sealing body is provided between the sealing seat and the adjusting rod.

[0013] According to some embodiments of the present invention, the adjustment structure includes a handwheel, which is installed outside the first valve body and connected to the adjustment rod.

[0014] According to some embodiments of the present invention, the outer periphery of the valve core is provided with a machined groove for mitigating fluid impact force.

[0015] According to some embodiments of the present invention, the valve core is provided with a flow guide hole, which connects the two ends of the valve core.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the pressure regulating device according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram showing the connection relationship of the voltage regulating device;

[0020] Figure 3 for Figure 1 A schematic diagram of the valve assembly of the pressure regulating device is shown;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of point A is shown;

[0022] Reference numerals: Adjusting structure 300; Handwheel 310; Adjusting rod 320; Sealing body 330; Valve assembly 600; First valve body 610; Valve cover 611; Sealing seat 612; Valve core 613; Transition head 614; Push spring 615; Machined groove 617; Guide hole 618; Second valve body 620; Detector 625; Second flow channel 630; Valve base 690; Connecting joint 730; First flow channel 735; Union nut 760; Water tank 800; Plunger pump 900; Pump mounting base 950; Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Reference Figure 1 A pressure regulating device includes: a connecting joint 730, a valve assembly 600, and an adjusting structure 300. The connecting joint 730 is used to connect a plunger pump 900 and is provided with a first flow channel 735. The valve assembly 600 is connected to the connecting joint 730 and includes a valve core 613 and a second flow channel 630. The first flow channel 735 is connected to the valve assembly 600 and can communicate with the second flow channel 630. The valve core 613 can move relative to the connecting joint 730 and change the fluid pressure difference between the first flow channel 735 and the second flow channel 630. The adjusting structure 300 is connected to the valve core 613 and can drive the valve core 613 to move relative to the connecting joint 730. The plunger pump 900 can be placed in a water tank 800, and the connecting joint 730 is installed at the pump outlet end, so that the fluid in the water tank 800 can flow from the first flow channel 735 to the second flow channel 630, thereby forming a pipeline that simulates actual working conditions. Subsequently, the valve core 613 can be moved by adjusting the structure 300, thereby changing the fluid pressure difference between the first flow channel 735 and the second flow channel 630, thus enabling testing of the plunger pump 900 under different pressure conditions. By simply and directly moving the valve core 613, the fluid pressure difference can be changed, allowing for convenient and quick adjustment of the pressure regulation under simulated operating conditions of the plunger pump 900. This makes the testing of the plunger pump 900 more convenient and efficient, effectively facilitating the production process of the plunger pump 900.

[0028] Specifically, the connector 730 is fitted with a union nut 760 and is detachably connected to the plunger pump 900 via it.

[0029] It is conceivable that a pump mounting base 950 can be installed inside the water tank 800, and the plunger pump 900 is installed in the pump mounting base 950, so that it can stably carry out testing operations.

[0030] In some embodiments, reference is made to Figure 2 The valve assembly 600 is connected to a detector 625, which can detect the fluid pressure within at least one of the first flow channel 735 and the second flow channel 630. Because the detector 625 can detect fluid pressure, the user can clearly and intuitively understand the test environment of the plunger pump 900, thus enabling them to smoothly conduct comparative operations of the plunger pump 900 under different pressure environments based on its operating environment.

[0031] Specifically, detector 625 is a pressure sensor. Of course, detector 625 can also be other components, such as a fluid flow rate sensor. The specific implementation is not unique, but can be adjusted according to the actual situation, and is not limited here.

[0032] In some embodiments, reference is made to Figure 3 The valve assembly 600 includes a first valve body 610 and a second valve body 620. A valve core 613 is movably mounted on the first valve body 610, and a detector 625 is mounted on the second valve body 620. The first valve body 610, the second valve body 620, and the connecting joint 730 are connected in sequence, and a second flow channel 630 is disposed in the first valve body 610. The first valve body 610 and the second valve body 620 will respectively load the valve core 613 and the detector 625, so that the two can work together. Furthermore, with the connection of the first valve body 610 and the second valve body 620, the positional relationship between the first flow channel 735, the valve core 613, and the second flow channel 630 can be determined, so that the fluid can flow more orderly, thereby ensuring that the testing operation of the plunger pump 900 can be carried out more smoothly.

[0033] Specifically, a valve base 690 is installed at the bottom of the second valve body 620. The valve base 690 is mated with the connecting joint 730, allowing the first flow channel 735 to pass through the valve base 690 and extend smoothly into the second valve body 620.

[0034] In some embodiments, reference is made to Figure 3 The valve assembly 600 includes a first valve body 610, with a first flow channel 735 and a second flow channel 630 both connected to the first valve body 610. A push spring 615 is disposed within the first valve body 610. The push spring 615 is connected to a valve core 613 and can push it to close at least one of the first flow channel 735 and the second flow channel 630. Fluid flowing from the first flow channel 735 towards the second flow channel 630 can push the valve core 613, causing the valve core 613 to move against the elastic force of the push spring 615. When fluid flows through the first flow channel 735 to the valve core 613, the push spring 615 will push the valve core 613, thereby causing the valve core 613 to block at least one of the first flow channel 735 and the second flow channel 630. When fluid flows in, it pushes the valve core 613, causing it to move against the elastic force of the push spring 615. At this time, the first flow channel 735 and the second flow channel 630 will be connected. The push spring 615 can not only automatically close the first valve body 610 when no fluid flows in, but also achieve a pressure stabilizing effect on the fluid during the flow process through the elastic force of the push spring 615. Therefore, it can effectively improve the stability of the plunger pump 900 test operation, thereby making the test results more reliable and trustworthy.

[0035] Specifically, a valve chamber is provided inside the first valve body 610, and the valve core 613 is movably installed inside the valve chamber. The first flow channel 735 is connected to the second flow channel 630 through the valve chamber. Under the push of the push spring 615, the valve core 613 will move to the junction of the valve chamber and the first flow channel 735 and close that position.

[0036] In some embodiments, reference is made to Figure 4 The adjusting structure 300 includes an adjusting rod 320 movably disposed in the first valve body 610, at least a portion of which extends into the first valve body 610. The adjusting rod 320 and the valve core 613 are respectively connected to the two ends of the push spring 615. The adjusting rod 320 can move closer to or further away from the valve core 613. Before and after movement, the distance between the adjusting rod 320 and the valve core 613 will change. Under different distance conditions, the push spring 615 will have different compression amounts, causing the force exerted by the push spring 615 on the valve core 613 to change. Therefore, when the fluid pushes the valve core 613, the fluid pressure required to move the valve core 613 will be different. That is, the flow pressure of the fluid will change before and after the valve core 613 moves. Therefore, the fluid pressure can be smoothly adjusted by moving the adjusting rod 320, so that the plunger pump 900 can be moved under different fluid pressure conditions, thereby enabling the working condition of the plunger pump 900 under different fluid pressures to be detected, thus completing the testing of the plunger pump 900.

[0037] Furthermore, a transition head 614 is provided in the valve chamber. The adjusting rod 320 pushes the transition head 614, and the transition head 614 presses the push spring 615, thereby achieving the effect of compressing the push spring 615. A step is provided in the valve chamber, and the transition head 614 can abut against the step under the action of the push spring 615, preventing it from falling out of the valve chamber.

[0038] In some embodiments, reference is made to Figure 4 The first valve body 610 includes a valve cover 611 and a sealing seat 612. A portion of the adjusting rod 320 passes through the valve cover 611 and the sealing seat 612 and connects to the valve core 613. The sealing seat 612 is used to provide a relative seal between the valve cover 611 and the valve core 613. The sealing seat 612 can effectively seal between the valve core 613 and the valve cover 611, thereby preventing fluid from leaking out from the gap between the valve cover 611, the valve core 613 and the adjusting rod 320, thus ensuring that the fluid flows stably from the second flow channel 630, thereby ensuring that the testing operation of the plunger pump 900 can be carried out stably.

[0039] In some embodiments, reference is made to Figure 4A sealing body 330 is provided between the sealing seat 612 and the adjusting rod 320. The sealing body 330 can further seal the adjusting rod 320, thereby effectively preventing fluid from overflowing from the adjusting rod 320, and thus effectively improving the stability of the test operation.

[0040] Specifically, the sealing body 330 is an assembly composed of multiple sealing rings, and provides a sufficient sealing effect between the adjusting rod 320 and the sealing seat 612.

[0041] In some embodiments, reference is made to Figure 3 The adjusting structure 300 includes a handwheel 310, which is mounted outside the first valve body 610 and connected to the adjusting rod 320. The handwheel 310 allows the user to easily drive the adjusting rod 320, thereby enabling simple and convenient adjustment of the working pressure environment of the plunger pump 900.

[0042] In some embodiments, reference is made to Figure 4 The outer periphery of the valve core 613 is provided with machined grooves 617 to mitigate fluid impact. The machined grooves 617 guide the fluid as it flows through the valve core 613, changing the relative orientation between the fluid and the valve core 613. This prevents the fluid from directly impacting the valve core 613, effectively mitigating fluid impact and providing the valve core 613 with a more stable operating environment.

[0043] In some embodiments, reference is made to Figure 4 The valve core 613 is provided with a flow guide hole 618, which connects the two ends of the valve core 613. The flow guide hole 618 allows a small portion of the fluid to pass through the valve core 613 and flow to the other side of the valve core 613, thus effectively creating a back pressure effect on the back of the valve core 613, thereby ensuring that the valve core 613 can move smoothly.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A voltage regulating device, characterized in that, include: A connecting joint (730) for connecting a plunger pump (900), the connecting joint (730) being provided with a first flow channel (735); A valve assembly (600) is connected to the connecting joint (730). The valve assembly (600) includes a valve core (613) and a second flow channel (630). The first flow channel (735) is connected to the valve assembly (600) and is capable of communicating with the second flow channel (630). The valve core (613) is movable relative to the connecting joint (730) and changes the fluid pressure difference between the first flow channel (735) and the second flow channel (630). An adjustment structure (300) is connected to the valve core (613), and the adjustment structure (300) can drive the valve core (613) to move relative to the connecting joint (730).

2. The voltage regulating device as described in claim 1, characterized in that: The valve assembly (600) is connected to a detector (625) capable of detecting fluid pressure within at least one of the first flow channel (735) and the second flow channel (630).

3. The voltage regulating device as described in claim 2, characterized in that: The valve assembly (600) includes a first valve body (610) and a second valve body (620), the valve core (613) is movably mounted on the first valve body (610), and the detector (625) is mounted on the second valve body (620); the first valve body (610), the second valve body (620) and the connecting joint (730) are connected in sequence, and the second flow channel (630) is disposed on the first valve body (610).

4. The voltage regulating device as described in claim 1, characterized in that: The valve assembly (600) includes a first valve body (610), and the first flow channel (735) and the second flow channel (630) are both connected to the first valve body (610); The first valve body (610) is provided with a push spring (615), which is connected to the valve core (613) and can push it to close at least one of the first flow channel (735) and the second flow channel (630); The fluid flowing from the first flow channel (735) toward the second flow channel (630) can push the valve core (613) and cause the valve core (613) to move against the elastic force of the push spring (615).

5. The voltage regulating device as described in claim 4, characterized in that: The adjustment structure (300) includes an adjustment rod (320) movably disposed in the first valve body (610), at least a portion of the adjustment rod (320) extending into the first valve body (610); the adjustment rod (320) and the valve core (613) are respectively connected to the two ends of the push spring (615), and the adjustment rod (320) can move closer to or away from the valve core (613).

6. The voltage regulating device as described in claim 5, characterized in that: The first valve body (610) includes a valve cover (611) and a sealing seat (612). A portion of the adjusting rod (320) passes through the valve cover (611) and the sealing seat (612) and is connected to the valve core (613). The sealing seat (612) is used to provide a relative seal between the valve cover (611) and the valve core (613).

7. The voltage regulating device as described in claim 6, characterized in that: A sealing body (330) is provided between the sealing seat (612) and the adjusting rod (320).

8. The voltage regulating device as described in claim 6, characterized in that: The adjustment structure (300) includes a handwheel (310), which is mounted outside the first valve body (610) and connected to the adjustment rod (320).

9. The voltage regulating device as described in claim 1, characterized in that: The outer periphery of the valve core (613) is provided with a machined groove (617) for mitigating fluid impact.

10. The voltage regulating device as described in claim 1, characterized in that: The valve core (613) is provided with a flow guide hole (618), which connects the two ends of the valve core (613).

Images