A new type of high-speed plunger pump

Abstract

The invention discloses a novel high-speed plunger pump, which is applied in the technical field of high-speed plunger pumps. The invention provides a pumping casing as a cavity for pumping liquid. A liquid inlet component provided inside the pumping casing is used for allowing liquid medium to enter the interior of the pumping casing from a liquid inlet. A valve body shell is provided to cooperate with a pressure plate and a return spring to play the role of a liquid inlet valve. A filter component is provided to filter the liquid. A bottom shell, a top shell and a bracket are provided to install a magnetic tube, a fine-mouth screen and a coarse-mouth screen. The magnetic tube, the fine-mouth screen and the coarse-mouth screen filter the liquid medium passing through.

Description

Technical Field

[0001] The invention belongs to the technical field of high-speed plunger pumps, and in particular relates to a novel high-speed plunger pump. Background Art

[0002] Considering the use scenarios and internal structures of high-speed plunger pumps, there are many types of plunger pumps to choose from according to the use scenarios, but they are not limited to the one described below. More specifically, when pumping liquid media, the external motor drives the plunger to reciprocate through the eccentric rotation of the pump shaft. When the plunger is away from the pumping cavity, the pressure inside the pumping cavity decreases, and the liquid is pumped into the pumping cavity from the liquid inlet position. When the plunger pushes toward the pumping cavity, the pressure inside the pumping cavity increases to pump out the liquid medium;

[0003] When the liquid medium is pumped into the pump body, the liquid flows into the pump body in strands, and there is no corresponding processing structure in a cold working environment. However, a whole strand of liquid medium will generate a large pressure on the inlet valve position when entering the pump body. The high-speed plunger pump has a high pumping frequency for the liquid medium, and the valve position may be deformed, resulting in poor sealing, etc.

[0004] Combining the two problems mentioned above, we will find that it is difficult for the current high-speed plunger pump to avoid both problems at the same time when pumping liquid media. Even if the above problems can be solved by external equipment or shortening the maintenance cycle, it also increases labor and time costs, and thus cannot achieve the desired effect of the personnel in this field based on the above problems. Therefore, we propose a high-speed plunger pump that can simultaneously play an anti-freeze and impact protection role on the valve body when pumping liquid media normally. Summary of the invention

[0005] The purpose of the present invention is to provide a new type of high-speed plunger pump, which has the advantages of being able to heat and keep the liquid inlet position warm according to the environment when pumping liquid medium, and buffering the entire liquid medium pumped in.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a new type of high-speed plunger pump, including a plunger main structure and a pumping casing, a one-way valve bolted to the top of the inner wall of the pumping casing, a liquid inlet assembly bolted to the bottom of the inner wall of the pumping casing, a buffer assembly arranged on the inner side of the bottom of the pumping casing, and an antifreeze assembly arranged at the bottom of the surface of the pumping casing.

[0007] By adopting the above technical scheme, the pumping structure is driven by setting a plunger main structure, the set pumping casing is used as a pumping chamber for the liquid medium, and the structure is mounted, the set liquid inlet component can filter and assist in buffering the liquid medium before it enters the pumping casing, the set buffer component is used to provide impact protection for the liquid inlet position and provide a buffering effect for the liquid medium, and the set antifreeze component can prevent internal water accumulation and freezing or reduce the structural strength in a cold environment, which may cause damage risk.

[0008] The present invention is further configured as follows: the liquid inlet component includes a valve body shell, a pressure plate is arranged on the inner side of the valve body shell, a return spring is bolted to the top of the pressure plate, the return spring is bolted to the valve body shell on the side away from the pressure plate, a filter component is arranged on the inner side of the valve body shell, and the filter component is arranged at the bottom of the pressure plate.

[0009] By adopting the above technical solution, a valve body shell is set, which cooperates with a pressure plate and a return spring. When the liquid medium is pumped in from the bottom, it will impact the pressure plate to move the return spring upward, so that the liquid medium enters the valve body shell from the gap between the valve body shell and the pressure plate. The filter component is used to filter the liquid medium to avoid the scouring and accumulation of impurities.

[0010] The present invention is further configured as follows: the filter assembly includes a bottom shell, the top of the bottom shell surface is threadedly connected to a top shell, the inner walls of the top shell and the bottom shell are welded with brackets, a magnetic tube is clamped between the opposite sides of the top bracket and the bottom bracket, a fine-mouthed screen is arranged on the top of the magnetic tube, the side of the fine-mouthed screen away from the magnetic tube is in close contact with the top bracket, a coarse-mouthed screen is arranged on the bottom of the magnetic tube, the side of the coarse-mouthed screen away from the magnetic tube is in close contact with the bottom bracket, and the surface of the bottom shell is in contact with the valve body outer shell.

[0011] By adopting the above technical solution, by setting the bottom shell and the top shell together, the magnetic tube and the coarse-mouthed screen and the fine-mouthed screen can be installed and fixed through the bracket. When the liquid medium passes through the coarse-mouthed screen, larger impurities are initially screened out, and the fine-mouthed screen is used to screen out smaller impurities. The set magnetic tube can adsorb metal impurities.

[0012] The present invention is further configured as follows: a gasket is provided at the bottom of the valve body shell, and matching grooves are provided on the surfaces of the gasket and the bottom shell, a connecting screw is inserted into the inner side of the matching groove, the surface of the top of the connecting screw is threadedly connected to the bottom of the valve body shell, a limiting ring is welded on the inner wall of the top shell, and the bottom of the limiting ring is in contact with the bottom shell.

[0013] By adopting the above technical solution, the valve body outer shell and the bottom shell can be easily connected by arranging a gasket and a connecting screw, and the setting of the limiting ring can facilitate the limiting of the connection between the top shell and the bottom shell.

[0014] The present invention is further configured as follows: a first position-limiting telescopic rod is bolted to the top of the inner side of the valve body shell, and a bottom of the first position-limiting telescopic rod is bolted to the pressure plate.

[0015] By adopting the above technical solution and providing the first limiting telescopic rod, the moving position of the pressing piece can be easily limited to avoid tilting and the like.

[0016] The present invention is further configured as follows: the buffer assembly includes a secondary shell, the inner wall of the secondary shell is slidably connected with a piston, the surface of the piston is bolted with a pressure spring, and the side of the pressure spring away from the piston is bolted to the secondary shell.

[0017] By adopting the above technical solution and setting a sub-shell, when the liquid medium enters the interior of the pumping casing, the liquid medium exerts force on the piston, causing it to move along the position of the pressure spring. After a single pumping, the pressure spring drives the piston to return to its original position to facilitate subsequent pumping.

[0018] The present invention is further configured as follows: a leakage hole is opened at the bottom of the auxiliary shell, a second limiting telescopic rod is bolted to the inner wall of the auxiliary shell, the second limiting telescopic rod is bolted to the piston on the side close to the piston, and the second limiting telescopic rod is located on the inner side of the pressure spring.

[0019] By adopting the above technical solution and setting a leakage hole, when the piston reaches the leakage hole position or water accumulates inside the sub-shell, excess liquid medium will be discharged from the leakage hole to avoid structural damage caused by excessive pressure or inability to discharge liquid medium.

[0020] The present invention is further configured as follows: the antifreeze component includes an antifreeze shell, the antifreeze shell is arranged on the outside of the pumping casing, a heating wire is arranged on the inside of the antifreeze shell, and a mica soft board is arranged on the inside of the antifreeze shell.

[0021] By adopting the above technical solution, an antifreeze shell is set up, and the heating wire and the mica soft board are installed. The set heating wire has a heating effect, and the set mica soft board can assist in heat conduction to heat the liquid inlet position to avoid water accumulation and ice formation. Increasing the internal temperature can also accelerate the evaporation of internal water when no pumping operation is performed inside.

[0022] The present invention is further configured as follows: a guide recess is provided on the surface of the pumping casing, a thin metal baffle is provided on the inner side of the guide recess, and a heat-insulating material is filled on the inner side of the guide recess.

[0023] By adopting the above technical solution, a guiding concave is set to assist the incoming liquid medium to guide its flow to the position of the buffer component. The internal filling insulation material is half foamed polyurethane material. When the antifreeze component is heated, the foamed polyurethane material will absorb heat at the same time. Because of its slow heat dissipation speed, the pumping casing will also be insulated for a period of time after the pumping operation is stopped, so that the liquid will not freeze in a cold environment due to rapid cooling of the temperature.

[0024] The present invention is further configured as follows: a connecting ring is bolted on the surface of the pumping casing, a mounting screw is inserted into the inner side of the connecting ring, and the bottom of the mounting screw is threadedly connected to the antifreeze housing.

[0025] By adopting the above technical solution and providing a connecting ring, the antifreeze housing and the pumping housing can be easily installed, and the maintenance and repair of the structure can be facilitated.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. A pumping casing is provided as a cavity for pumping liquid, a liquid inlet assembly provided inside the pumping casing is used for allowing liquid medium to enter the pumping casing from the liquid inlet, a valve body shell is provided to cooperate with a pressing piece and a return spring to play the role of a liquid inlet valve, a filter assembly is provided to filter the liquid, a bottom shell, a top shell and a bracket are provided to install a magnetic tube, a fine-mouthed screen and a coarse-mouthed screen, and the magnetic tube, the fine-mouthed screen and the coarse-mouthed screen filter the liquid medium passing through;

[0028] 2. A buffer component is provided to buffer the liquid medium when it enters. The auxiliary shell cooperates with the pressure spring and the piston. The liquid medium presses the piston and can be reset after the liquid is pumped. The antifreeze component can prevent the liquid medium from freezing in a cold environment. The heating wire is provided to heat the mica soft board. The antifreeze shell is provided to facilitate its separate removal during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the buffer assembly of the present invention;

[0031] Figure 3 It is a schematic diagram of the pumping casing structure of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the liquid inlet assembly of the present invention;

[0033] Figure 5 It is a schematic diagram of the valve body shell structure of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0035] Figure 7 The present invention Figure 2 A partial enlarged view of point A in the middle.

[0036] 1. The piston main structure; 2. The pumping housing; 3. The one-way valve; 4. The liquid inlet assembly; 401. The valve body shell; 402. The pressure plate; 403. The reset spring; 404. The filter assembly; 4041. The bottom shell; 4042. The top shell; 4043. The bracket; 4044. The magnetic tube; 4045. The fine-mouthed screen; 4046. The coarse-mouthed screen; 5. The buffer assembly; 501. The auxiliary shell; 502. The piston; 503. The pressure spring; 6. The antifreeze assembly; 601. The antifreeze shell; 602. The heating wire; 603. The mica soft board; 7. The gasket; 8. The matching groove; 9. The connecting screw; 10. The limiting ring; 11. The first limiting telescopic rod; 12. The leakage hole; 13. The second limiting telescopic rod; 14. The guide recess; 15. The thin metal baffle; 16. The connecting ring; 17. The mounting screw. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0038] Embodiment 1:

[0039] refer to Figure 1-6 A new type of high-speed plunger pump includes a plunger main structure 1 and a pumping casing 2. A one-way valve 3 is bolted to the top of the inner wall of the pumping casing 2, and a liquid inlet component 4 is bolted to the bottom of the inner wall of the pumping casing 2. The pumping structure is driven by setting the plunger main structure 1. The pumping casing 2 is used as a pumping cavity for the liquid medium and carries the structure. The liquid inlet component 4 can filter and assist in buffering the liquid medium before it enters the interior of the pumping casing 2.

[0040] like Figure 4 As shown, the liquid inlet component 4 includes a valve body shell 401, a pressure piece 402 is arranged on the inner side of the valve body shell 401, a return spring 403 is bolted to the top of the pressure piece 402, and the return spring 403 is bolted to the valve body shell 401 on the side away from the pressure piece 402, and a filter component 404 is arranged on the inner side of the valve body shell 401, and the filter component 404 is arranged at the bottom of the pressure piece 402. By setting the valve body shell 401, cooperating with the pressure piece 402 and the return spring 403, when the liquid medium is pumped in from the bottom, it will impact the pressure piece 402 to move the return spring 403 upward, so that the liquid medium enters the valve body shell 401 from the gap between the valve body shell 401 and the pressure piece 402, and the filter component 404 is arranged to filter the liquid medium to avoid the scouring and accumulation of impurities.

[0041] like Figure 6 As shown, the filter assembly 404 includes a bottom shell 4041, the top of the bottom shell 4041 is threadedly connected to a top shell 4042, the inner walls of the top shell 4042 and the bottom shell 4041 are welded with a bracket 4043, a magnetic tube 4044 is clamped between the top bracket 4043 and the opposite side of the bottom bracket 4043, a fine-mouthed screen 4045 is arranged on the top of the magnetic tube 4044, and the side of the fine-mouthed screen 4045 away from the magnetic tube 4044 is in close contact with the top bracket 4043, and a coarse-mouthed screen 4046 is arranged at the bottom of the magnetic tube 4044, and the coarse-mouthed screen 4046 is arranged at the bottom of the magnetic tube 4044. The side of the screen 4046 away from the magnetic tube 4044 is in close contact with the bottom bracket 4043, and the surface of the bottom shell 4041 is in contact with the valve body shell 401. By setting the bottom shell 4041 and the top shell 4042 to cooperate, the magnetic tube 4044 and the coarse-mouthed screen 4046 and the fine-mouthed screen 4045 can be installed and fixed through the bracket 4043. When the liquid medium passes through the coarse-mouthed screen 4046, larger impurities are initially screened out, and the fine-mouthed screen 4045 is used to screen out smaller impurities. The set magnetic tube 4044 can adsorb metal impurities.

[0042] like Figure 5 As shown, a gasket 7 is provided at the bottom of the valve body shell 401, and matching grooves 8 are provided on the surfaces of the gasket 7 and the bottom shell 4041, and a connecting screw 9 is inserted into the inner side of the matching groove 8, and the top surface of the connecting screw 9 is threadedly connected to the bottom of the valve body shell 401, and a limiting ring 10 is welded to the inner wall of the top shell 4042, and the bottom of the limiting ring 10 is in contact with the bottom shell 4041. By setting the gasket 7 and the connecting screw 9 in cooperation, the valve body shell 401 and the bottom shell 4041 can be easily connected, and the setting of the limiting ring 10 can facilitate the limiting of the connection between the top shell 4042 and the bottom shell 4041.

[0043] like Figure 5 As shown, a first limiting telescopic rod 11 is bolted to the top of the inner side of the valve body shell 401, and the bottom of the first limiting telescopic rod 11 is bolted to the pressure plate 402. By setting the first limiting telescopic rod 11, the moving position of the pressure plate 402 can be easily limited to avoid tilting and the like.

[0044] A brief description of the use process: as a cavity for pumping liquid, the liquid inlet component 4 arranged inside it is used for allowing liquid medium to enter the interior of the pumping casing 2 from the liquid inlet, the valve body shell 401 is provided, and the pressure piece 402 and the return spring 403 play the role of a liquid inlet valve, the filter component 404 is provided for filtering the liquid, the bottom shell 4041, the top shell 4042 and the bracket 4043 are provided for installing the magnetic tube 4044, the fine-mouthed screen 4045 and the coarse-mouthed screen 4046, when the bottom shell 4041 and the top shell 4042 are installed by threaded cooperation, the magnetic tube 4044, the coarse-mouthed screen 4046 and the fine-mouthed screen 4045 are first placed in sequence, and they are firmly installed by the bracket 4043, when the liquid medium passes through the coarse-mouthed screen 4046, larger impurities are initially screened out, the fine-mouthed screen 4045 is used to screen out smaller impurities, and the magnetic tube 4044 can adsorb metal impurities.

[0045] Embodiment 2:

[0046] refer to Figure 1-7 A new type of high-speed plunger pump includes a plunger main structure 1 and a pumping casing 2. A buffer component 5 is arranged on the inner side of the bottom of the pumping casing 2, and an antifreeze component 6 is arranged on the bottom of the surface of the pumping casing 2. The pumping structure is driven by setting the plunger main structure 1. The buffer component 5 is used to provide impact protection for the liquid inlet position and provide a buffering effect for the liquid medium. The antifreeze component 6 can avoid the risk of internal water accumulation and freezing or structural strength reduction in a cold environment.

[0047] like Figure 2 As shown, the buffer assembly 5 includes a sub-shell 501, the inner wall of which is slidably connected to a piston 502, the surface of the piston 502 is bolted with a pressure spring 503, and the side of the pressure spring 503 away from the piston 502 is bolted to the sub-shell 501. By setting the sub-shell 501, when the liquid medium enters the interior of the pumping casing 2, the liquid medium applies force to the piston 502 to move along the position of the pressure spring 503. After a single pumping, the pressure spring 503 drives the piston 502 to reset to facilitate subsequent pumping.

[0048] like Figure 3 As shown, a leakage hole 12 is provided at the bottom of the sub-shell 501, and a second limiting telescopic rod 13 is bolted to the inner wall of the sub-shell 501. The second limiting telescopic rod 13 is bolted to the piston 502 on one side close to the piston 502, and the second limiting telescopic rod 13 is located on the inner side of the pressure spring 503. By setting the leakage hole 12, when the piston 502 reaches the position of the leakage hole 12 or water accumulates inside the sub-shell 501, excess liquid medium will be discharged from the leakage hole 12, thereby avoiding structural damage caused by excessive pressure or inability to discharge the liquid medium.

[0049] like Figure 7As shown, the antifreeze component 6 includes an antifreeze shell 601, which is arranged on the outside of the pumping casing 2, and a heating wire 602 is arranged on the inside of the antifreeze shell 601, and a mica soft board 603 is arranged on the inside of the antifreeze shell 601. By setting the antifreeze shell 601, the heating wire 602 and the mica soft board 603 are installed, and the set heating wire 602 has a heating effect, and the set mica soft board 603 can assist in heat conduction to heat the liquid inlet position to avoid water accumulation and freezing. Increasing the internal temperature can also accelerate the evaporation of internal water when no pumping operation is performed inside.

[0050] like Figure 7 As shown, the surface of the pumping casing 2 is provided with a guide recess 14, the inner side of the guide recess 14 is provided with a thin metal baffle 15, and the inner side of the guide recess 14 is filled with a heat-insulating material. By providing the guide recess 14, the incoming liquid medium can be assisted to guide its flow to the position of the buffer component 5. The heat-insulating material filled inside is a foamed polyurethane material. When the antifreeze component 6 is heated, the foamed polyurethane material will absorb heat at the same time. Because of its slow heat dissipation speed, the pumping casing 2 will be insulated for a period of time after the pumping operation is stopped, so that the liquid will not freeze in a cold environment due to rapid temperature cooling.

[0051] like Figure 7 As shown, a connecting ring 16 is bolted to the surface of the pumping casing 2, and a mounting screw 17 is inserted into the inner side of the connecting ring 16. The bottom of the mounting screw 17 is threadedly connected to the antifreeze casing 601. By setting the connecting ring 16, the antifreeze casing 601 and the pumping casing can be easily installed, and the structure can be easily maintained.

[0052] Brief description of the usage process: By setting a buffer component 5, it is used to buffer the liquid medium when it enters. When the liquid medium enters the pumping casing 2, the liquid medium applies force to the piston 502 to move along the position of the pressure spring 503. After a single pumping, the pressure spring 503 drives the piston 502 to reset. The antifreeze component 6 set can prevent the liquid medium from freezing in a cold environment. The heating wire 602 has a heating effect. The set mica soft board 603 can assist in heat conduction to heat the liquid inlet position. By installing the screw 17, the antifreeze shell 601 can be easily removed from the plunger main structure 1.

[0053] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A novel high-speed plunger pump, comprising a plunger main structure (1) and a pumping casing (2), characterized in that: A one-way valve (3) is bolted to the top of the inner wall of the pumping casing (2), a liquid inlet assembly (4) is bolted to the bottom of the inner wall of the pumping casing (2), a buffer assembly (5) is arranged on the inner side of the bottom of the pumping casing (2), and an antifreeze assembly (6) is arranged at the bottom of the surface of the pumping casing (2). The liquid inlet assembly (4) comprises a valve body shell (401), a pressure plate (402) is arranged on the inner side of the valve body shell (401), a return spring (403) is bolted to the top of the pressure plate (402), a side of the return spring (403) away from the pressure plate (402) is bolted to the valve body shell (401), a filter assembly (404) is arranged on the inner side of the valve body shell (401), and the filter assembly (404) is arranged at the bottom of the pressure plate (402), The filter assembly (404) comprises a bottom shell (4041), the top of the bottom shell (4041) is threadedly connected to a top shell (4042), the inner walls of the top shell (4042) and the bottom shell (4041) are welded with a bracket (4043), a magnetic tube (4044) is clamped between the top bracket (4043) and the bottom bracket (4043) on opposite sides, and a narrow opening is provided on the top of the magnetic tube (4044). The sieve (4045) is provided with a fine-mouthed sieve (4045), the side of which is away from the magnetic tube (4044) is in close contact with the top bracket (4043), the bottom of the magnetic tube (4044) is provided with a coarse-mouthed sieve (4046), the side of which is away from the magnetic tube (4044) is in close contact with the bottom bracket (4043), the surface of the bottom shell (4041) is in contact with the valve body shell (401), A gasket (7) is provided at the bottom of the valve body shell (401), and the surfaces of the gasket (7) and the bottom shell (4041) are both provided with a matching groove (8), a connecting screw (9) is inserted into the inner side of the matching groove (8), and the top surface of the connecting screw (9) is threadedly connected to the bottom of the valve body shell (401), and a limiting ring (10) is welded to the inner wall of the top shell (4042), and the bottom of the limiting ring (10) is in contact with the bottom shell (4041). A first position-limiting telescopic rod (11) is bolted to the top of the inner side of the valve body shell (401), and the bottom of the first position-limiting telescopic rod (11) is bolted to the pressing plate (402). The buffer assembly (5) comprises a secondary shell (501), the inner wall of the secondary shell (501) is slidably connected to a piston (502), a surface of the piston (502) is bolted to a pressure spring (503), and a side of the pressure spring (503) away from the piston (502) is bolted to the secondary shell (501). A liquid leakage hole (12) is provided at the bottom of the secondary shell (501), and a second position-limiting telescopic rod (13) is bolted to the inner wall of the secondary shell (501). The second position-limiting telescopic rod (13) is bolted to the piston (502) at a side close to the piston (502), and the second position-limiting telescopic rod (13) is located on the inner side of the pressure spring (503). The antifreeze component (6) comprises an antifreeze shell (601), wherein the antifreeze shell (601) is arranged on the outside of the pumping casing (2), a heating wire (602) is arranged on the inside of the antifreeze shell (601), and a mica soft board (603) is arranged on the inside of the antifreeze shell (601).

2. A novel high-speed plunger pump according to claim 1, characterized in that: The surface of the pumping casing (2) is provided with a guide recess (14), the inner side of the guide recess (14) is provided with a thin metal baffle (15), and the inner side of the guide recess (14) is filled with a heat-insulating material.

3. A novel high-speed plunger pump according to claim 1, characterized in that: A connecting ring (16) is bolted to the surface of the pumping casing (2), a mounting screw (17) is inserted into the inner side of the connecting ring (16), and the bottom of the mounting screw (17) is threadedly connected to the antifreeze casing (601).

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