Pressure stabilizing pump

Abstract

The utility model provides a stabilized pressure pump. The stabilized pressure pump comprises a valve body and a pump body which are assembled together. The valve body is provided with a suction channel, a discharge channel, a pressure relief channel and a pressure relief assembly. A discharging port of the suction channel is in butt joint with the suction end of the pump body, a feeding port of the discharging channel is in butt joint with the discharging end of the pump body, the two ends of the pressure relief channel are communicated with the suction channel and the discharging channel respectively, and the pressure relief assembly is movably installed in the valve body and extends into the pressure relief channel. When the pressure in the discharge channel is smaller than a preset value, the pressure relief assembly blocks the pressure relief channel, or when the pressure in the discharge channel is larger than the preset value, the pressure relief assembly opens the pressure relief channel, and therefore the pressure intensity of fluid conveyed out by the pump can be smaller than the preset value. And the problem that a discharge channel, a connecting pipeline and even connecting equipment are damaged due to too large pressure intensity is avoided.

Description

Technical Field

[0001] The utility model relates to the field of water pumps, in particular to a pressure-stabilizing pump. Background Art

[0002] Most pumps push fluids out by extrusion, and the fluid pressure in the discharge channel is relatively high. If the pressure is too high, the discharge channel, the subsequent connecting pipes and even the docking equipment will be damaged. In fact, when the discharge direction is blocked, if the working room in the pump continues to output, the above problems are more likely to occur. For this reason, the utility model provides a pressure-relieving pump that can solve the above technical problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a pump structure capable of pressure relief.

[0004] A pressure-stabilizing pump comprises a valve body and a pump body assembled together.

[0005] The valve body is provided with a suction channel, a discharge channel, a pressure relief channel, and a pressure relief assembly. The discharge port of the suction channel is connected to the suction end of the pump body, and the feed port of the discharge channel is connected to the discharge end of the pump body. Thus, when the pump body is started, the pump body draws fluid through the suction channel and discharges the fluid through the discharge channel.

[0006] The two ends of the pressure relief channel are respectively connected to the suction channel and the discharge channel. The pressure relief component is movably installed in the valve body and extends into the pressure relief channel. When the pressure in the discharge channel is less than a preset value, the pressure relief component blocks the pressure relief channel, or when the pressure in the discharge channel is greater than a preset value, the pressure relief component opens the pressure relief channel, thereby achieving a fluid pressure less than a preset value delivered by the pump, thereby avoiding the problem of damage to the discharge channel, connecting pipes and even connecting equipment due to excessive pressure.

[0007] Preferably, the pressure relief assembly includes a pressure-stabilizing sealing gasket and a compression elastic member. The pressure-stabilizing sealing gasket is movably installed in the pressure relief channel and blocks the pressure relief channel under the push of the compression elastic member, so that the compression elastic member can be further compressed under the action of water force and the pressure relief channel can be opened.

[0008] Preferably, the valve body is provided with a mounting cavity, and the pressure relief passage is provided with a first pressure relief port and a second pressure relief port that are closely adjacent to and both face the mounting cavity, the first pressure relief port and the second pressure relief port being connected to the discharge channel and the suction channel, respectively. The pressure-stabilizing sealing gasket is installed at the first and second pressure relief ports, and the compression elastic member is installed in the mounting cavity and pushes the pressure-stabilizing sealing gasket to seal and isolate the first and second pressure relief ports.

[0009] Preferably, the pressure-stabilizing sealing pad is an elastic rubber pad with flexibility. Its periphery is installed at the end of the installation cavity by pressing, and the middle part blocks the first pressure relief port and the second pressure relief port to isolate the installation cavity from the pressure relief channel.

[0010] Preferably, the compression elastic member is a spring, which is compressed and installed in the installation cavity, with one end pressing against the end of the installation cavity and the other end pressing against the pressure-stabilizing sealing gasket, and has a simple structure. Alternatively, the compression elastic member includes a push seat and a spring, and the push seat is telescopically installed in the installation cavity. The spring is compressed and arranged between the installation cavity and the push seat, and pushes the push seat to press the pressure-stabilizing sealing gasket, thereby evenly pressing the pressure-stabilizing sealing gasket to avoid uneven sealing.

[0011] Preferably, the compression elastic member further comprises a spring seat and a screw, wherein the spring seat is also telescopically mounted within the mounting cavity, and the spring is disposed between the push seat and the spring seat. The screw is screwed into the mounting cavity through a screw hole, with the end of the screw pressing against the end of the spring seat facing away from the spring. When the screw is rotated, the installation depth of the spring seat within the mounting cavity can be adjusted, thereby adjusting the degree of compression of the spring, and further adjusting the preset value.

[0012] Preferably, the installation cavity forms an installation opening on the periphery of the valve body, and the installation opening is provided with a cover to facilitate the installation of the pressure relief assembly.

[0013] Preferably, a check valve is provided at the feed port of the discharge channel to prevent the fluid in the discharge channel from reversely entering the pump body or the suction channel.

[0014] Preferably, the pump body is installed at the bottom of the valve body and is fixed and assembled by screws, which is firm and reliable.

[0015] Preferably, the pump body is a diaphragm pump.

[0016] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0017] The pressure-stabilizing pump provided by the utility model is provided with a pressure relief channel connecting the suction channel and the discharge channel, and is also provided with a pressure relief component. When the pressure in the discharge channel is greater than a preset value, the pressure relief component opens the pressure relief channel, thereby achieving a pressure of the fluid delivered by the pump that is lower than the preset value, thereby avoiding the problem of damage to the discharge channel, connecting pipes, and even connected equipment due to excessive pressure;

[0018] The pressure relief assembly includes a pressure-stabilizing seal and a compression elastic member, and has a simple and reliable structure;

[0019] The compression elastic member further includes a spring seat and a screw. When the screw is rotated, the installation depth of the spring seat in the installation cavity can be adjusted, thereby adjusting the compression degree of the spring, and further adjusting the preset value, thereby improving the flexibility of the pump output pressure.

[0020] A check valve is provided at the feed port of the discharge channel to prevent the fluid in the discharge channel from reversely entering the pump body or the suction channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] in:

[0023] Figure 1 A cross-section of a pressure-stabilizing pump Figure 1 ;

[0024] Figure 2 This is a working state diagram of a pressure-stabilizing pump. Figure 1 ; (Pressure relief component closes the pressure relief channel)

[0025] Figure 3 This is a working state diagram of a pressure-stabilizing pump. Figure 2 ; (pressure relief component opens the pressure relief channel)

[0026] Figure 4 This is an exploded diagram of a pressure-stabilizing pump;

[0027] Figure 5 A cross-section of a pressure-stabilizing pump Figure 2 ;

[0028] Figure 6 This is a working state diagram of a pressure-stabilizing pump. Figure 3 ; (Pressure relief component closes the pressure relief channel)

[0029] Figure 7 This is a working state diagram of a pressure-stabilizing pump. Figure 4 ; (pressure relief component opens the pressure relief channel)

[0030] Figures 1 to 7 The symbols are: valve body 1, suction channel 11, discharge channel 12, pressure relief channel 13, first pressure relief port 131, second pressure relief port 132, pressure relief assembly 14, pressure stabilizing sealing gasket 141, compression elastic member 142, push seat 1421, spring 1422, spring seat 1423, screw 1424, installation cavity 15, cover 16, check valve 17, pump body 2. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] See also Figures 1 to 4 , a pressure-stabilizing pump, comprising a valve body 1 and a pump body 2 assembled together.

[0033] The valve body 1 is provided with a suction channel 11, a discharge channel 12, a pressure relief channel 13, and a pressure relief assembly 14. The discharge port of the suction channel 11 is connected to the suction end of the pump body 2, and the feed port of the discharge channel 12 is connected to the discharge end of the pump body 2. Therefore, when the pump body 2 is started, the pump body 2 draws fluid through the suction channel 11 and discharges the fluid through the discharge channel 12. Preferably, the pump body 2 is mounted on the bottom of the valve body 1 and fixed with screws, which is firm and reliable.

[0034] In this embodiment, the pump body 2 is a diaphragm pump. Of course, in other embodiments, other types of pump bodies 2 may also be used.

[0035] Two ends of the pressure relief channel 13 are connected to the suction channel 11 and the discharge channel 12 respectively. The pressure relief assembly 14 is movably installed in the valve body 1 and extends into the pressure relief channel 13 .

[0036] To simplify the structure, preferably, the pressure relief assembly 14 includes a pressure-stabilizing sealing gasket 141 and a compression elastic member 142. The pressure-stabilizing sealing gasket 141 is movably installed in the pressure relief channel 13 and blocks the pressure relief channel 13 under the push of the compression elastic member 142, so that the compression elastic member 142 can be further compressed under the action of water force and the pressure relief channel 13 can be opened.

[0037] Based on the above embodiment, in one embodiment, a mounting cavity 15 is defined within the valve body 1, and the pressure relief channel 13 is provided with a first pressure relief port 131 and a second pressure relief port 132 that are adjacent to and face the mounting cavity 15. The first pressure relief port 131 and the second pressure relief port 132 are connected to the discharge channel 12 and the suction channel 11, respectively. A pressure-stabilizing sealing gasket 141 is installed at the first pressure relief port 131 and the second pressure relief port 132. The compression elastic member 142 is installed within the mounting cavity 15 and pushes against the pressure-stabilizing sealing gasket 141 to seal the cover 16 and isolate the first pressure relief port 131 and the second pressure relief port 132.

[0038] Furthermore, in other embodiments, the pressure-stabilizing sealing gasket 141 is an elastic rubber gasket with flexibility. Its periphery is installed at the end of the installation cavity 15 by pressing, and its middle portion blocks the first pressure relief port 131 and the second pressure relief port 132, isolating the installation cavity 15 from the pressure relief channel 13. In addition, the compression elastic member 142 is a spring 1422, which is compressed and installed in the installation cavity 15, with one end supporting the end of the installation cavity 15 and the other end supporting the pressure-stabilizing sealing gasket 141. The structure is simple. Alternatively, in another embodiment, the compression elastic member 142 includes a push seat 1421 and a spring 1422. The push seat 1421 is telescopically installed in the installation cavity 15. The spring 1422 is compressed and arranged between the installation cavity 15 and the push seat 1421, and pushes the push seat 1421 to press the pressure-stabilizing sealing gasket 141, thereby evenly pressing the pressure-stabilizing sealing gasket 141 and avoiding uneven sealing.

[0039] Based on the above embodiment, in one embodiment, the compression elastic member 142 further includes a spring seat 1423 and a screw 1424. The spring seat 1423 is also telescopically mounted within the mounting cavity 15, and the spring 1422 is disposed between the push seat 1421 and the spring seat 1423. The screw 1424 is screwed into the mounting cavity 15 through a screw hole, and the end of the screw 1424 presses against the end of the spring seat 1423 facing away from the spring 1422. When the screw 1424 is rotated, the installation depth of the spring seat 1423 within the mounting cavity 15 can be adjusted, thereby adjusting the degree of compression of the spring 1422 and, in turn, adjusting the preset value.

[0040] In addition, to facilitate assembly, in one embodiment, the installation cavity 15 forms an installation opening on the periphery of the valve body 1 , and the installation opening is provided with a cover 16 to facilitate the installation of the pressure relief assembly 14 .

[0041] In this embodiment, a check valve 17 is provided at the feed port of the discharge channel 12 to prevent the fluid in the discharge channel 12 from reversely entering the pump body 2 or the suction channel 11. Figure 5 , or as Figure 6 and Figure 7 .

[0042] The pressure-stabilizing pump provided in this embodiment, when working, when the pressure in the discharge channel 12 is less than a preset value, the pressure relief component 14 blocks the pressure relief channel 13, or when the pressure in the discharge channel 12 is greater than a preset value, the pressure relief component 14 opens the pressure relief channel 13, thereby achieving a fluid pressure less than a preset value delivered by the pump, thereby avoiding the problem of damage to the discharge channel 12, connecting pipes and even connecting equipment due to excessive pressure.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it 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, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] In the present invention, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0048] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present invention.

Claims

1. A pressure-stabilizing pump, characterized in that: It comprises a valve body and a pump body assembled together; the valve body is provided with a suction channel, a discharge channel, a pressure relief channel and a pressure relief assembly; the discharge port of the suction channel is connected to the suction end of the pump body, and the feed port of the discharge channel is connected to the discharge end of the pump body; the two ends of the pressure relief channel are respectively connected to the suction channel and the discharge channel; the pressure relief assembly is movably installed in the valve body and extends into the pressure relief channel, and when the pressure in the discharge channel is less than a preset value, the pressure relief assembly blocks the pressure relief channel, or, when the pressure in the discharge channel is greater than a preset value, the pressure relief assembly opens the pressure relief channel.

2. A pressure-stabilizing pump according to claim 1, characterized in that: The pressure relief assembly includes a pressure-stabilizing sealing gasket and a compression elastic member. The pressure-stabilizing sealing gasket is movably installed in the pressure relief channel and blocks the pressure relief channel under the push of the compression elastic member.

3. A pressure-stabilizing pump according to claim 2, characterized in that: An installation cavity is provided in the valve body, and the pressure relief channel is provided with a first pressure relief port and a second pressure relief port which are close to and both face the installation cavity, and the first pressure relief port and the second pressure relief port are connected to the discharge channel and the suction channel respectively; the pressure-stabilizing sealing gasket is installed at the first pressure relief port and the second pressure relief port, and the compression elastic member is installed in the installation cavity, and pushes the pressure-stabilizing sealing gasket to cover and separate the first pressure relief port and the second pressure relief port.

4. A pressure-stabilizing pump according to claim 3, characterized in that: The pressure-stabilizing sealing pad is an elastic rubber pad, and its periphery is installed at the end of the installation cavity by pressing, isolating the installation cavity from the pressure relief channel.

5. A pressure-stabilizing pump according to claim 4, characterized in that: The compression elastic member is a spring, which is compressed and installed in the installation cavity, with one end pressing against the end of the installation cavity and the other end pressing against the pressure-stabilizing sealing gasket. Alternatively, the compression elastic member includes a push seat and a spring, and the push seat is telescopically installed in the installation cavity. The spring is compressed and arranged between the installation cavity and the push seat, and pushes the push seat to press the pressure-stabilizing sealing gasket.

6. A pressure-stabilizing pump according to claim 5, characterized in that: The compression elastic member also includes a spring seat and a screw rod. The spring seat is also telescopically installed in the installation cavity. The spring is arranged between the push seat and the spring seat. The screw rod is screwed into the installation cavity through the screw hole, and the end of the screw rod presses against the end of the spring seat away from the spring.

7. A pressure-stabilizing pump according to any one of claims 3 to 6, characterized in that: The installation cavity forms an installation opening on the periphery of the valve body, and the installation opening is provided with a sealing cover.

8. A pressure-stabilizing pump according to claim 1, characterized in that: A check valve is provided at the feed inlet of the discharge channel.

9. A pressure-stabilizing pump according to claim 1, characterized in that: The pump body is installed at the bottom of the valve body and is fixed and assembled by screws.

10. The pressure-stabilizing pump according to claim 1, characterized in that: The pump body is a diaphragm pump.

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