Pressure gauge for pressure pump

Abstract

The utility model relates to the technical field of pressure gauges, and provides a pressure gauge for a pressure pump, which comprises a water inlet pipe, a fixing plate is arranged in the water inlet pipe, the outer surface of the fixing plate is fixedly connected with a plurality of fixing rods, and one ends, far away from the fixing plate, of the plurality of fixing rods are fixedly connected to the inner surface of the water inlet pipe. A positioning rod is fixedly connected to one side of the fixing plate, an anti-falling plate is fixedly connected to the end, away from the fixing plate, of the positioning rod, the outer surface of the positioning rod is movably sleeved with a positioning sleeve, the side, away from the fixing plate, of the positioning sleeve is arranged on the outer surface of the anti-falling plate, and a plurality of first shaft plates are fixedly connected to the outer surface of the positioning sleeve. And a plurality of second shaft plates are fixedly connected to the inner surface of the water inlet pipe. According to the utility model, the device is provided with a self-adaptive interface structure, so that the tension at the interface of the pressure gauge can be automatically adjusted, the pressure gauge is prevented from falling off from the interface when the pressure is too high, and the device can be used for measuring water flow with relatively high pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, in particular to a pressure gauge for a pressure pump. Background Art

[0002] A pressure gauge mainly helps to detect abnormal pressure conditions in a timely manner, such as too high or too low pressure, so as to take measures to avoid equipment damage or safety accidents, provides a basis for accurately adjusting and controlling pressure to meet specific working requirements and process standards, and assists in judging whether there are faults or abnormal operations in the pressure pump through changes in pressure data. Long-term monitoring of pressure data can provide a reference for evaluating the performance and stability of the pressure pump.

[0003] However, in the prior art, for example, Chinese Publication No.: CN207229364U, "A Pressure Gauge for a Pressure Pump", this utility model discloses a pressure gauge for a pressure pump, including a pressure pump pipe. A connecting pipe is provided at the top of the pressure pump pipe, a pressure gauge is provided at the top of the connecting pipe, a display screen is installed on the front of the pressure gauge, the input end of the display screen is unidirectionally electrically connected to a single-chip microcomputer, and the input end of the single-chip microcomputer is unidirectionally electrically connected to a keyboard through the cooperation of a keyboard interface. This utility model solves the problem of low practicability of the existing pressure gauges through the mutual cooperation of the display screen, single-chip microcomputer, pressure sensing module, pressure sensor one, pressure sensor two, storage module, keyboard interface, keyboard, feedback module, transmission module, alarm module, buzzer, flash lamp and indicator light.

[0004] However, this device does not have an adaptive interface structure and cannot automatically adjust the tension at the pressure gauge interface. When the pressure is too high, the pressure gauge is likely to fall off from the interface, resulting in the device being unable to be used for measuring water flow with a relatively large pressure. The device does not have an active pressure adjustment structure, and when the pressure is relatively large, it cannot detect abnormal pressure conditions in a timely manner, making it inconvenient to take measures to avoid equipment damage or safety accidents, and unable to accurately adjust and control the pressure. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the problems existing in the prior art that the device does not have an adaptive interface structure, cannot automatically adjust the tension at the pressure gauge interface, the pressure gauge is likely to fall off from the interface when the pressure is too high, resulting in the device being unable to be used for measuring water flow with a relatively large pressure, the device does not have an active pressure adjustment structure, and when the pressure is relatively large, it cannot detect abnormal pressure conditions in a timely manner, making it inconvenient to take measures to avoid equipment damage or safety accidents, and unable to accurately adjust and control the pressure.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A pressure gauge for a pressure pump, including a water inlet pipe, wherein a fixing plate is arranged inside the water inlet pipe, a plurality of fixing rods are fixedly connected to the outer surface of the fixing plate, one end of the plurality of fixing rods away from the fixing plate is fixedly connected to the inner surface of the water inlet pipe, a positioning rod is fixedly connected to one side of the fixing plate, a anti - detachment plate is fixedly connected to the end of the positioning rod away from the fixing plate, a positioning sleeve is movably sleeved on the outer surface of the positioning rod, the side of the positioning sleeve away from the fixing plate is arranged on the outer surface of the anti - detachment plate, a plurality of first shaft plates are fixedly connected to the outer surface of the positioning sleeve, a plurality of second shaft plates are fixedly connected to the inner surface of the water inlet pipe, two connecting rods are rotatably connected to the outer surface of the first shaft plates, and one end of the two connecting rods away from the first shaft plates is rotatably connected to the outer surface of the second shaft plates. A tension spring is movably sleeved on the outer surface of the positioning rod. When water flows into the water inlet pipe, it will impact the positioning sleeve and make the positioning sleeve move along the positioning rod.

[0007] As a preferred embodiment, one end of the tension spring away from the positioning sleeve is fixedly connected to one side of the fixing plate, and one end of the tension spring away from the fixing plate is fixedly connected to one side of the positioning sleeve. The tension spring on the outer surface of the positioning rod makes the positioning sleeve approach the fixing plate even when there is no water flow.

[0008] As a preferred embodiment, a plurality of stress slots are opened at one end of the water inlet pipe, and a threaded groove is opened on the outer surface of the water inlet pipe near the stress slots. The device can be connected to one end of the water pipe to be measured through the threaded groove on the outer surface of the water inlet pipe.

[0009] As a preferred embodiment, one end of the water inlet pipe away from the stress slots is communicated with a main housing, and one side of the main housing away from the water inlet pipe is communicated with a water outlet pipe. Water flows into the main housing through the water inlet pipe and then into the water outlet pipe.

[0010] As a preferred embodiment, a branch pipe is communicated with the top of the water outlet pipe, and one end of the branch pipe away from the water outlet pipe is communicated with an adjustment housing. When water flows into the water outlet pipe, the water will enter the adjustment housing through the branch pipe.

[0011] As a preferred embodiment, a pressure - receiving plate is movably embedded on the inner surface of the adjustment housing, a pressure - applying rod is fixedly connected to the bottom of the pressure - receiving plate, and the outer surface of the pressure - applying rod is movably embedded at the bottom of the adjustment housing. Water will squeeze the pressure - receiving plate and squeeze the spring through the observation plate, and the compressed spring will form a balance with the pressure of the water flow.

[0012] As a preferred embodiment, a gate plate is fixedly connected to the bottom of the pressure - applying rod, and the outer surface of the gate plate is movably embedded at the top of the main housing. The movement of the gate plate will change the cross - sectional area of the main housing.

[0013] As a preferred embodiment, an observation plate is fixedly sleeved on the outer surface of the pressure rod. A spring is fixedly connected to the bottom of the observation plate, and the bottom of the spring is fixedly connected to the top of the main housing. The compressed spring will form a balance with the water flow pressure, and the water flow pressure can be known by observing the height of the observation plate.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] 1. In the present utility model, the device is provided with an adaptive interface structure, which can automatically adjust the tension force at the pressure gauge interface, prevent the pressure gauge from falling off the interface when the pressure is too high, and enable the device to be used for measuring water flow with a relatively large pressure.

[0016] 2. In the present utility model, the device is provided with an active pressure regulation structure. When the pressure is relatively large, it can timely detect abnormal pressure conditions, facilitate taking measures to avoid equipment damage or safety accidents, and can accurately adjust and control the pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a three-dimensional structural schematic diagram of a pressure gauge for a pressure pump provided by the present utility model;

[0018] Figure 2 FIG. 2 is a sectional structural schematic diagram of a pressure gauge for a pressure pump provided by the present utility model;

[0019] Figure 3 FIG. 3 is a sectional structural schematic diagram of a water inlet pipe in a pressure gauge for a pressure pump provided by the present utility model;

[0020] Figure 4 FIG. 4 is a side structural schematic diagram of a pressure gauge for a pressure pump provided by the present utility model;

[0021] Figure 5 FIG. 5 is an enlarged structural schematic diagram of A in a pressure gauge for a pressure pump provided by the present utility model; Figure 2

[0022] LEGEND DESCRIPTION:

[0023] 1. Water inlet pipe; 2. Fixed plate; 3. Fixed rod; 4. Positioning rod; 5. Positioning sleeve; 6. First shaft plate; 7. Second shaft plate; 8. Connecting rod; 9. Tension spring; 10. Stress slit; 11. Thread groove; 12. Main housing; 13. Water outlet pipe; 14. Branch pipe; 15. Adjusting shell; 16. Pressure receiving plate; 17. Pressure rod; 18. Gate plate; 19. Observation plate; 20. Spring; 21. Anti-detachment plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution: a pressure gauge for a pressure pump, including a water inlet pipe 1. Inside the water inlet pipe 1, there is a fixing plate 2. On the outer surface of the fixing plate 2, a plurality of fixing rods 3 are fixedly connected. One end of the plurality of fixing rods 3 away from the fixing plate 2 is fixedly connected to the inner surface of the water inlet pipe 1. On one side of the fixing plate 2, a positioning rod 4 is fixedly connected. One end of the positioning rod 4 away from the fixing plate 2 is fixedly connected to a anti - detachment plate 21. The outer surface of the positioning rod 4 is movably sleeved with a positioning sleeve 5. The side of the positioning sleeve 5 away from the fixing plate 2 is arranged on the outer surface of the anti - detachment plate 21. On the outer surface of the positioning sleeve 5, a plurality of first shaft plates 6 are fixedly connected. On the inner surface of the water inlet pipe 1, a plurality of second shaft plates 7 are fixedly connected. On the outer surface of the first shaft plate 6, two connecting rods 8 are rotatably connected. One end of the two connecting rods 8 away from the first shaft plate 6 is rotatably connected to the outer surface of the second shaft plate 7. The outer surface of the positioning rod 4 is movably sleeved with a tension spring 9. Among them, the positioning rod 4 is fixed inside the water inlet pipe 1 through the fixing plate 2 and the fixing rods 3, and the anti - detachment plate 21 can prevent the positioning sleeve 5 from falling off the positioning rod 4.

[0026] As Figures 1-5 shown, one end of the tension spring 9 away from the positioning sleeve 5 is fixedly connected to one side of the fixing plate 2, and one end of the tension spring 9 away from the fixing plate 2 is fixedly connected to one side of the positioning sleeve 5. The tension spring 9 on the outer surface of the positioning rod 4 makes the positioning sleeve 5 approach the fixing plate 2 even when there is no water flow.

[0027] As Figures 1-5 shown, a plurality of stress slots 10 are opened at one end of the water inlet pipe 1. A threaded groove 11 is opened on the outer surface of the water inlet pipe 1 near the stress slots 10. The other end of the connecting rod 8 will push the inner surface of the water inlet pipe 1 through the second shaft plate 7, and under the action of the stress slots 10, the outer surface of the water inlet pipe 1 expands outward, making the connection between the water inlet pipe 1 and the measured water pipe more stable.

[0028] As Figures 1-5 shown, one end of the water inlet pipe 1 away from the stress slots 10 is communicated with a main housing 12. One side of the main housing 12 away from the water inlet pipe 1 is communicated with a water outlet pipe 13. Water flows into the main housing 12 through the water inlet pipe 1 and then flows into the water outlet pipe 13.

[0029] As Figures 1-5As shown, a branch pipe 14 is connected to the top of the water outlet pipe 13. One end of the branch pipe 14 away from the water outlet pipe 13 is connected to an adjustment shell 15. When water flows into the water outlet pipe 13, the water flow will enter the adjustment shell 15 through the branch pipe 14.

[0030] As Figures 1-5 shown, a pressure receiving plate 16 is movably embedded on the inner surface of the adjustment shell 15. A pressure applying rod 17 is fixedly connected to the bottom of the pressure receiving plate 16. The outer surface of the pressure applying rod 17 is movably embedded at the bottom of the adjustment shell 15. The water flow will squeeze the pressure receiving plate 16 and squeeze the spring 20 through the observation plate 19. The compressed spring 20 will form a balance with the pressure of the water flow.

[0031] As Figures 1-5 shown, a gate plate 18 is fixedly connected to the bottom of the pressure applying rod 17. The outer surface of the gate plate 18 is movably embedded at the top of the main housing 12. The movement of the gate plate 18 will change the cross-sectional area of the main housing 12.

[0032] As Figures 1-5 shown, an observation plate 19 is fixedly sleeved on the outer surface of the pressure applying rod 17. A spring 20 is fixedly connected to the bottom of the observation plate 19. The bottom of the spring 20 is fixedly connected to the top of the main housing 12. The compressed spring 20 will form a balance with the pressure of the water flow. By observing the height of the observation plate 19, the pressure of the water flow can be known.

[0033] Working principle: First, connect the device to one end of the water pipe to be measured through the thread groove 11 on the outer surface of the water inlet pipe 1. When water flows into the water inlet pipe 1, it will impact the positioning sleeve 5 and make the positioning sleeve 5 move along the positioning rod 4. When the positioning sleeve 5 moves along the positioning rod 4 to one end, it will drive one end of the connecting rod 8 through the first shaft plate 6. Then the other end of the connecting rod 8 will push the inner surface of the water inlet pipe 1 through the second shaft plate 7. Under the action of the stress slit 10, the outer surface of the water inlet pipe 1 will expand outwards, making the connection between the water inlet pipe 1 and the measured water pipe more stable. The tension spring 9 on the outer surface of the positioning rod 4 makes the positioning sleeve 5 approach the fixing plate 2 even when there is no water flow. Among them, the positioning rod 4 is fixed inside the water inlet pipe 1 through the fixing plate 2 and the fixing rod 3. The anti-disengagement plate 21 can prevent the positioning sleeve 5 from falling off the positioning rod 4. When the fluid pressure is too large and the device is unstable, the water flow enters the main housing 12 through the water inlet pipe 1, then flows into the water outlet pipe 13. When flowing into the water outlet pipe 13, the water flow will enter the adjustment shell 15 through the branch pipe 14, squeeze the pressure receiving plate 16 and squeeze the spring 20 through the observation plate 19. The compressed spring 20 will form a balance with the pressure of the water flow. When the pressure applying rod 17 moves downward following the pressure receiving plate 16, it will drive the gate plate 18 downward and reduce the water output inside the main housing 12, so that the pressure inside the device decreases and the water flow out of the water outlet pipe 13 is more stable. By observing the height of the observation plate 19, the pressure of the water flow can be known.

[0034] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pressure gauge for a pressure pump, characterized in that: The invention comprises a water inlet pipe (1), wherein a fixing plate (2) is arranged inside the water inlet pipe (1), a plurality of fixing rods (3) are fixedly connected to the outer surface of the fixing plate (2), one end of the plurality of fixing rods (3) away from the fixing plate (2) is fixedly connected to the inner surface of the water inlet pipe (1), a positioning rod (4) is fixedly connected to one side of the fixing plate (2), one end of the positioning rod (4) away from the fixing plate (2) is fixedly connected to an anti-slip plate (21), and a positioning sleeve (5) is movably sleeved on the outer surface of the positioning rod (4), The side of the positioning sleeve (5) away from the fixed plate (2) is arranged on the outer surface of the anti-slip plate (21), the outer surface of the positioning sleeve (5) is fixedly connected with a plurality of first axis plates (6), the inner surface of the water inlet pipe (1) is fixedly connected with a plurality of second axis plates (7), the outer surface of the first axis plate (6) is rotatably connected with two connecting rods (8), one end of the two connecting rods (8) away from the first axis plate (6) is rotatably connected to the outer surface of the second axis plate (7), and the outer surface of the positioning rod (4) is movably sleeved with a tension spring (9).

2. A pressure gauge for a pressure pump according to claim 1, characterized in that: One end of the tension spring (9) away from the positioning sleeve (5) is fixedly connected to one side of the fixing plate (2), and one end of the tension spring (9) away from the fixing plate (2) is fixedly connected to one side of the positioning sleeve (5).

3. A pressure gauge for a pressure pump according to claim 1, characterized in that: A plurality of stress seams (10) are provided at one end of the water inlet pipe (1), and a thread groove (11) is provided on one side of the outer surface of the water inlet pipe (1) close to the stress seams (10).

4. A pressure gauge for a pressure pump according to claim 3, characterized in that: One end of the water inlet pipe (1) away from the stress joint (10) is connected to a main housing (12), and one side of the main housing (12) away from the water inlet pipe (1) is connected to a water outlet pipe (13).

5. A pressure gauge for a pressure pump according to claim 4, characterized in that: The top of the water outlet pipe (13) is connected to a branch pipe (14), and one end of the branch pipe (14) away from the water outlet pipe (13) is connected to a regulating shell (15).

6. A pressure gauge for a pressure pump according to claim 5, characterized in that: A pressure plate (16) is movably embedded in the inner surface of the adjusting shell (15), a pressure rod (17) is fixedly connected to the bottom of the pressure plate (16), and an outer surface of the pressure rod (17) is movably embedded in the bottom of the adjusting shell (15).

7. A pressure gauge for a pressure pump according to claim 6, characterized in that: The bottom of the pressure rod (17) is fixedly connected to a gate plate (18), and the outer surface of the gate plate (18) is movably embedded in the top of the main housing (12).

8. A pressure gauge for a pressure pump according to claim 7, characterized in that: The outer surface of the pressure rod (17) is fixed with an observation plate (19), the bottom of the observation plate (19) is fixedly connected with a spring (20), and the bottom of the spring (20) is fixedly connected to the top of the main housing (12).

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