Anti-overloading high-pressure pump head structure

Abstract

The utility model belongs to the technical field of high-pressure pump heads, and particularly relates to an anti-overload high-pressure pump head structure which comprises a pump head body, a cylinder body assembly is fixed to the driving end side of the pump head body through bolts, a water inlet channel and a water outlet channel are formed in the cylinder body assembly, and a water outlet pipe is installed at a water outlet of the water outlet channel in the cylinder body assembly. A digital display pressure gauge is installed on the second one-way valve on the side away from the water outlet pipe. According to the anti-overloading high-pressure pump head structure, when the internal pressure of the pump head structure exceeds a threshold value, pressure can be automatically applied to a conical block to compress a spring, and the internal pressure of the pump body structure is released into a transverse pipe and discharged, so that the situation that the internal pressure of the pump head structure is too high to accelerate damage to the pump body structure is avoided; and when the digital display pressure gauge detects that the pressure value in the pump body structure reaches the preset threshold value, the electromagnet is automatically started to control the conical block to be separated from the interior of the pressure relief cavity for pressure relief.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure pump head technology, and in particular to an overload-proof high-pressure pump head structure. Background Technology

[0002] High-pressure pump heads, as devices that can convert low-pressure water flow into high-pressure water flow, are widely used in industrial production and civilian applications.

[0003] In traditional high-pressure pump head structures, the pressure inside the pump head may rise sharply during prolonged operation or under specific conditions, exceeding the capacity of the pump head structure. When the pressure inside the cavity is too high and cannot be released, the high pressure can easily accelerate the damage of the internal components. This not only affects the working efficiency and stability of the high-pressure pump but also shortens its service life. Furthermore, the failure of the high-pressure pump head is often due to fatigue cracks initiating on the inner wall. Under high pressure, these cracks will gradually extend to the outer wall, forming macroscopic fractures and leaks. This not only leads to a decrease in the working performance of the high-pressure pump but may also pose a threat to the production environment and personnel safety. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide an overload-proof high-pressure pump head structure to solve the current technical problem that when the pressure inside the cavity is too high and cannot be released, the high pressure easily accelerates the damage of the components inside the cavity.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] An overload-resistant high-pressure pump head structure includes a pump head body, a shaft sleeve fixedly connected to the shaft end of the pump head body, a cylinder assembly fixed to the drive end side of the pump head body by bolts, and an inlet channel and an outlet channel respectively provided on the cylinder assembly. Three one-way valves are installed on the cylinder assembly facing the inlet channel, and three one-way valves are installed on the cylinder assembly facing the outlet channel. An inlet pipe is installed at the inlet of the inlet channel on the cylinder assembly, and an outlet pipe is installed at the outlet of the outlet channel on the cylinder assembly. A pressure regulating valve is installed at the outlet end of the outlet pipe.

[0008] The outlet pipe has a connecting hole on its outer wall away from the one-way valve, and an overload protection component is installed at the position of the outlet pipe opposite the connecting hole. A digital pressure gauge is installed on the one-way valve away from the outlet pipe. The overload protection component includes a horizontal pipe. A sealing seat is fixed inside the horizontal pipe near the outlet pipe. A pressure relief chamber is opened at the center of one end of the sealing seat. A conical block is set inside the pressure relief chamber. A blocking plate is detachably installed at the end of the horizontal pipe away from the sealing seat. A spring is installed between the opposite surfaces of the conical block and the blocking plate. Multiple drainage holes are opened at the bottom of the horizontal pipe.

[0009] As an improved technical solution, a motor connecting frame is welded to the side of the pump head body near the shaft connecting sleeve, and the shaft connecting sleeve is located in the center of the motor connecting frame. Fixing holes are provided at the four corners of the motor connecting frame away from the pump head body.

[0010] As an improved technical solution, an inlet interface is welded to the inlet of the water inlet pipe, and an outlet interface is installed at the outlet of the pressure regulating valve.

[0011] As an improved technical solution, a frustum base is coaxially fixed to one end of the conical block near the blocking plate, and the spring is located between the opposing surfaces of the blocking plate and the sealing seat. A sealing ring is sleeved on the frustum base, and the end face of the sealing ring near the sealing seat abuts against the sealing seat.

[0012] As an improved technical solution, a mounting column is coaxially fixed on the end face of the truncated cone base away from the conical block, and a protective sleeve is coaxially fixed on the end face of the corresponding blocking plate close to the conical block, with a spring installed between the protective sleeve and the mounting column.

[0013] As an improved technical solution, an electromagnet is fixed inside the sheath, the mounting post is an iron post, and the electromagnet and the opposite surface of the mounting post are in a magnetic adsorption state.

[0014] As an improved technical solution, the overload protection component also includes an internal threaded sleeve welded to the water outlet pipe connection hole, and a hollow external threaded sleeve that is threadedly connected to the internal threaded sleeve is fixed at one end of the internal threaded sleeve.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. In this utility model, when the internal pressure of the pump head structure exceeds its acceptable threshold, the high pressure will apply pressure to the end of the conical block near the internal threaded sleeve. The pressure will push the conical block into the horizontal tube and compress the spring, causing the conical block to disengage from the inside of the pressure relief chamber. At this time, the pressure enters the inside of the horizontal tube through the gap between the conical block and the pressure relief chamber, and is finally discharged to the outside through the drain hole, which is used to reduce the internal pressure of the pump head structure. When the internal pressure is less than the threshold, under the elastic reset of the spring, the conical block is pushed back into the inside of the pressure relief chamber to block it.

[0017] 2. In this utility model, when the digital pressure gauge detects that the internal pressure of the pump head structure reaches a threshold, it controls the electromagnet to open and magnetically attract the mounting column, moves the mounting column towards the electromagnet and compresses the spring, and releases pressure from the inside of the pressure relief chamber through the conical block. In this way, the pressure relief operation can be freely set when the internal pressure of the pump head structure reaches a specified value, thereby improving the stability of the pump head structure in use.

[0018] 3. In this utility model, when the internal pressure of the pump head structure exceeds the threshold, pressure will be automatically applied to the conical block to compress the spring, releasing the pressure inside the pump body structure into the horizontal tube and then discharging it. This avoids excessive pressure inside the pump head structure, which can accelerate the damage to the pump body structure. It can also be freely set that when the digital pressure gauge detects that the pressure value inside the pump body structure reaches the preset threshold, the electromagnet will be automatically activated to control the conical block to detach from the pressure relief chamber to release pressure. The two methods can be selected according to the actual situation to avoid overload of the internal pressure of the pump head structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the overload-proof high-pressure pump head of this utility model.

[0021] Figure 2 This is an exploded structural diagram of the overload protection component of the overload protection high-pressure pump head structure of this utility model.

[0022] Figure 3 This is a cross-sectional view of the horizontal pipe of the overload-proof high-pressure pump head structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Pump head body; 11. Shaft connecting sleeve; 12. Motor connecting frame; 2. Overload protection assembly; 21. Horizontal pipe; 22. Blocking plate; 23. Hollow external threaded sleeve; 24. Internal threaded sleeve; 25. Sealing seat; 26. Conical block; 27. Pressure relief chamber; 28. Frustum seat; 29. ​​Drain hole; 210. Electromagnet; 211. Sheath; 212. Spring; 213. Mounting column; 214. Sealing ring; 3. Digital pressure gauge; 4. Cylinder assembly; 41. Check valve one; 42. Check valve two; 5. Inlet pipe; 51. Inlet interface; 6. Outlet pipe; 61. Outlet interface; 7. Pressure regulating valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figures 1 to 3As shown in the figure, this embodiment provides an overload-proof high-pressure pump head structure. This overload-proof high-pressure pump head structure includes a pump head body 1. A shaft connecting sleeve 11 is fixedly connected to the shaft end of the pump head body 1. A cylinder assembly 4 is fixed to the drive end side of the pump head body 1 by bolts. The cylinder assembly 4 is provided with an inlet channel and an outlet channel respectively. Three one-way valves 41 are installed at the position of the cylinder assembly 4 facing the inlet channel. Three one-way valves 42 are installed at the position of the cylinder assembly 4 facing the outlet channel. An inlet pipe 5 is installed at the inlet of the inlet channel on the cylinder assembly 4. An outlet pipe 6 is installed at the outlet of the outlet channel on the cylinder assembly 4. A pressure regulating valve 7 is installed at the outlet end of the outlet pipe 6.

[0030] The water outlet pipe 6 has a connecting hole on its outer wall away from the one-way valve 41, and an overload protection component 2 is installed at the position of the water outlet pipe 6 opposite to the connecting hole. A digital pressure gauge 3 is installed on the one-way valve 42 on the side away from the water outlet pipe 6. The digital pressure gauge 3 is used to monitor the pressure inside the water outlet pipe. The overload protection component 2 includes a horizontal pipe 21. A sealing seat 25 is fixed inside the horizontal pipe 21 near the end of the water outlet pipe 6. A pressure relief chamber 27 is opened at the center of one end of the sealing seat 25. A conical block 26 is set inside the pressure relief chamber 27. A blocking plate 22 is detachably installed at the end of the horizontal pipe 21 away from the sealing seat 25. A spring 212 is installed between the opposite surfaces of the conical block 26 and the blocking plate 22. Multiple drain holes 29 are opened at the bottom of the horizontal pipe 21.

[0031] When the internal pressure of the pump head structure exceeds the threshold, pressure will be automatically applied to the conical block 26 to compress the spring 212, releasing the pressure inside the pump body structure into the horizontal pipe 21 and out. This avoids excessive pressure inside the pump head structure, which can accelerate the damage to the pump body structure. Alternatively, it can be set to automatically activate the electromagnet 210 to control the conical block 26 to detach from the pressure relief chamber 27 to release pressure when the digital pressure gauge 3 detects that the pressure inside the pump body structure has reached the preset threshold. The two methods can be selected according to the actual situation to avoid overload of the internal pressure of the pump head structure.

[0032] like Figure 1 As shown, in this embodiment, a motor connecting frame 12 is welded to the side of the pump head body 1 near the shaft connecting sleeve 11, and the shaft connecting sleeve 11 is located in the center of the motor connecting frame 12. Fixing holes are provided at the four corners of the motor connecting frame 12 on the side away from the pump head body 1.

[0033] like Figure 1 As shown, in this embodiment, a water inlet interface 51 is welded to the water inlet of the water inlet pipe 5, and a water outlet interface 61 is installed at the water outlet of the pressure regulating valve 7.

[0034] like Figures 2 to 3As shown in the figure, in this embodiment, a frustum base 28 is coaxially fixed at one end of the conical block 26 near the end of the blocking plate 22, and the spring 212 is located between the opposing surfaces of the blocking plate 22 and the sealing seat 25. A sealing ring 214 is sleeved on the frustum base 28, and the end face of the sealing ring 214 near the sealing seat 25 abuts against the sealing seat 25. When the spring 212 presses the conical block 26 into the pressure relief chamber 27, it will compress the sealing ring 214, thereby improving the sealing performance of the conical block 26 when blocking the pressure relief chamber 27 and ensuring the pressure value inside the pump head structure.

[0035] like Figures 2 to 3 As shown in the figure, in this embodiment, a mounting post 213 is coaxially fixed on the end face of the truncated cone block 26 away from the truncated cone block 26, and a sleeve 211 is coaxially fixed on the end face of the corresponding blocking plate 22 near the truncated cone block 26, and a spring 212 is installed between the sleeve 211 and the mounting post 213.

[0036] When the internal pressure of the pump head structure exceeds its acceptable threshold, the high pressure applies pressure to the end of the conical block 26 near the internal threaded sleeve 24. The pressure pushes the conical block 26 into the interior of the horizontal tube 21 and compresses the spring 212, causing the conical block 26 to disengage from the interior of the pressure relief chamber 27. At this time, the pressure enters the interior of the horizontal tube 21 through the gap between the conical block 26 and the pressure relief chamber 27, and is finally discharged to the outside through the drain hole 29 to reduce the pressure inside the pump head structure. When the internal pressure is less than the threshold, the conical block 26 is pushed back into the interior of the pressure relief chamber 27 under the elastic reset of the spring 212 to block it.

[0037] like Figures 2 to 3 As shown in the figure, in this embodiment, an electromagnet 210 is fixed inside the sheath 211, and the mounting post 213 is an iron post. The opposing surfaces of the electromagnet 210 and the mounting post 213 are in a magnetic adsorption state. When the digital pressure gauge 3 detects that the internal pressure of the pump head structure reaches the threshold, it controls the electromagnet 210 to open and magnetically adsorb with the mounting post 213, moves the mounting post 213 towards the electromagnet 210 and compresses the spring 212, and releases pressure from the inside of the pressure relief chamber 27 of the cone block 26. In this way, the pressure relief operation can be freely set when the internal pressure of the pump head structure reaches the specified value, thereby improving the stability of the pump head structure.

[0038] like Figures 2 to 3 As shown in the figure, in this embodiment, the overload protection component 2 also includes an internal threaded sleeve 24 welded to the connecting hole of the water outlet pipe 6. A hollow external threaded sleeve 23 is fixed to one end of the internal threaded sleeve 24 near the internal threaded sleeve 24 and is threadedly connected to the internal threaded sleeve 24. The threaded connection between the hollow external threaded sleeve 23 and the internal threaded sleeve 24 facilitates the assembly and disassembly of the horizontal pipe 21.

[0039] In use, the inlet pipe is connected to the inlet interface 51, and the high-pressure outlet pipe is connected to the outlet interface 61. The shaft sleeve 11 is fixed on the drive end side of the motor, and the motor shaft is inserted into the inside of the shaft sleeve 11. The motor can then drive the pump head body 1 to work through the shaft sleeve 11, pumping water in from the inlet interface 51 and spraying high-pressure water out from the outlet pipe 6. The pressure can be adjusted by the pressure regulating valve 7.

[0040] When the internal pressure of the pump head structure exceeds its acceptable threshold, the high pressure will apply pressure to the end of the conical block 26 near the internal threaded sleeve 24. The pressure will push the conical block 26 into the interior of the horizontal tube 21 and compress the spring 212, causing the conical block 26 to disengage from the interior of the pressure relief chamber 27. At this time, the pressure enters the interior of the horizontal tube 21 through the gap between the conical block 26 and the pressure relief chamber 27, and is finally discharged to the outside through the drain hole 29.

[0041] When the digital pressure gauge 3 detects that the internal pressure of the pump head structure has reached the threshold, it controls the electromagnet 210 to open and magnetically attract the mounting column 213, moving the mounting column 213 toward the electromagnet 210 and compressing the spring 212, thus releasing pressure from the inside of the pressure relief chamber 27 of the cone block 26. In this way, the pressure relief operation can be freely set when the internal pressure of the pump head structure reaches the specified value.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. An overload-resistant high-pressure pump head structure, characterized in that: The pump head body (1) is included. A shaft sleeve (11) is fixedly connected to the shaft end of the pump head body (1). A cylinder assembly (4) is fixed to the drive end side of the pump head body (1) by bolts. The cylinder assembly (4) is provided with an inlet channel and an outlet channel respectively. Three one-way valves (41) are installed on the cylinder assembly (4) facing the inlet channel. Three one-way valves (42) are installed on the cylinder assembly (4) facing the outlet channel. An inlet pipe (5) is installed at the inlet of the inlet channel on the cylinder assembly (4). An outlet pipe (6) is installed at the outlet of the outlet channel on the cylinder assembly (4). A pressure regulating valve (7) is installed at the outlet end of the outlet pipe (6). The water outlet pipe (6) has a connecting hole on its outer wall away from the one-way valve (41), and an overload protection component (2) is installed on the water outlet pipe (6) at the position opposite to the connecting hole. A digital pressure gauge (3) is installed on the one-way valve (42) away from the water outlet pipe (6). The overload protection component (2) includes a horizontal pipe (21). A sealing seat (25) is fixed inside the horizontal pipe (21) near the end of the water outlet pipe (6). A pressure relief chamber (27) is opened at the center of one end of the sealing seat (25). A conical block (26) is provided inside the pressure relief chamber (27). A blocking plate (22) is detachably installed at the end of the horizontal pipe (21) away from the sealing seat (25). A spring (212) is installed between the opposite surfaces of the conical block (26) and the blocking plate (22). Multiple drainage holes (29) are opened at the bottom of the horizontal pipe (21).

2. The overload-resistant high-pressure pump head structure according to claim 1, characterized in that: The pump head body (1) is welded with a motor connecting frame (12) on the side near the shaft connecting sleeve (11), and the shaft connecting sleeve (11) is located in the center of the motor connecting frame (12). Fixing holes are provided at the four corners of the motor connecting frame (12) on the side away from the pump head body (1).

3. The overload-resistant high-pressure pump head structure according to claim 2, characterized in that: The inlet of the water inlet pipe (5) is welded with an inlet interface (51), and the outlet of the pressure regulating valve (7) is equipped with an outlet interface (61).

4. The overload-resistant high-pressure pump head structure according to claim 3, characterized in that: The conical block (26) is coaxially fixed with a frustum base (28) at one end near the blocking plate (22), and the spring (212) is located between the opposing surfaces of the blocking plate (22) and the sealing seat (25). A sealing ring (214) is fitted on the frustum base (28), and the end face of the sealing ring (214) near the sealing seat (25) abuts against the sealing seat (25).

5. The overload-resistant high-pressure pump head structure according to claim 4, characterized in that: The truncated cone base (28) has a mounting post (213) fixed coaxially on one end face away from the conical block (26), and the corresponding end plate (22) has a sleeve (211) fixed coaxially on one end face near the conical block (26), and a spring (212) is installed between the sleeve (211) and the mounting post (213).

6. The overload-resistant high-pressure pump head structure according to claim 5, characterized in that: An electromagnet (210) is fixed inside the sheath (211), and the mounting post (213) is an iron post. The electromagnet (210) and the mounting post (213) are magnetically attracted to each other.

7. The overload-resistant high-pressure pump head structure according to claim 6, characterized in that: The overload protection component (2) also includes an internal threaded sleeve (24) welded to the connecting hole of the water outlet pipe (6), and a hollow external threaded sleeve (23) that is threadedly connected to the internal threaded sleeve (24) is fixed at one end of the internal threaded sleeve (24).

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