Plunger pump

Abstract

The utility model relates to the technical field of plunger pumps, and discloses a plunger pump which comprises a pump body, a suction end and a pump-out end, the suction end and the pump-out end are arranged on the pump body, connecting flanges are arranged on the suction end and the pump-out end, a protection assembly used for protecting the connecting flanges is arranged on the pump-out end, the protection assembly is composed of a protection part and a control part, and the control part is connected with the protection part. The protection part comprises a protection frame, the pump-out end penetrates through the protection frame, and the protection frame is fixedly connected with the pump-out end, according to the plunger pump, through the arranged protection assembly, after the pipeline, the suction end and the pump-out end are connected through bolts, limiting on the sliding ring can be relieved, the buckle cover rotates at the position hinged to the mounting groove, and therefore the pump-out end is protected; the buckle cover is buckled on the top of the protection frame, so that a bolt of a pipeline connected with the pump-out end is protected, and the phenomena that the bolt slips or is stuck and is difficult to disassemble when the bolt needs to be disassembled in the later period due to the fact that the bolt is contaminated by oil stains or other sundries are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a plunger pump. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment.

[0003] The plunger pump is provided with a suction end and a pump outlet. When in use, the pipeline needs to be connected to the suction end and the pump outlet. Currently, flanges and bolts are basically used for fastening. However, after long-term use, the bolts used for fastening may be contaminated with oil and other debris, which may cause slipping, jamming and other difficulties in disassembly when the bolts need to be disassembled. For this reason, we propose a plunger pump. Utility Model Content

[0004] The purpose of the utility model is to provide a plunger pump to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plunger pump, comprising a pump body and a suction end and a pump outlet end arranged on the pump body, wherein the suction end and the pump outlet end are both provided with connecting flanges, and the pump outlet end is provided with a protective component for protecting the connecting flange, and the protective component is composed of a protective part and a control part.

[0006] Preferably, the protection part includes a protection frame, which is penetrated by the pump outlet end and fixedly connected to the pump outlet end, the protection frame has an installation groove on its fixing side, the installation groove has an inner side hinged with a buckle cover, a volute spring is fixed on the surface of the buckle cover, one end of the volute spring away from the buckle cover is fixed on the inner side of the installation groove, the protection frame has a vertical groove on its surface, a slider is slidably installed on the inner side of the vertical groove, one end of the slider away from the vertical groove is fixed on the inner side of the slip ring, a connecting spring is fixed on the bottom of the slider, one end of the connecting spring away from the slider is fixed on the inner side of the vertical groove, when the slider and the slip ring move upward under the action of the connecting spring, the slip ring can contact the buckle cover, so that the buckle cover rotates at a position hinged with the installation groove, so that the buckle cover is buckled on the top of the protection frame, thereby protecting the bolts of the pipeline connected to the pump outlet end, thereby preventing oil or other debris from being contaminated on the bolts, causing the bolts to slip or get stuck when they need to be disassembled later, making them difficult to disassemble.

[0007] Preferably, an embedding groove is provided at the bottom of the protective frame, and a connecting nut is placed inside the embedding groove. After aligning the flange of the pipeline with the connecting flange, bolts are passed through the mounting holes and the embedding groove on the connecting flange. The bolts can be turned to control the connection with the connecting nut, thereby tightening it.

[0008] Preferably, the control part includes a connecting ring, which is slidably installed on the inner side of the embedding groove, the inner side of the embedding groove is penetrated by the push rod and is slidably connected to the push rod, a return spring is fixed on the inner wall of the protective frame, one end of the return spring away from the protective frame is fixed to the surface of the push rod, and a support rod is hinged on the top of the push rod.

[0009] Preferably, the support rod is hinged with a clamping rod at one end away from the top rod, the clamping rod passes through the protective frame and is slidably connected to the protective frame, and a circular ring is rotatably installed on the inner side of the slip ring, and a convex ring, a convex block and a resistance block are fixed on the inner side of the circular ring, and a fixed block and a limit block are fixed on the surface of the protective frame, and the clamping rod can resist on the top of the convex ring, thereby limiting the circular ring and the slip ring; when the slip ring is manually pulled downward, the slip ring moves downward with the circular ring, and when the convex block on the inner side of the circular ring is resisted by the fixed block, the circular ring rotates a certain angle, so that the limit block can be at the top of the convex ring, at this time, the slip ring is released, and under the action of the connecting spring, the slip ring moves upward a certain distance, and the limit block resists on the top of the convex ring, thereby limiting the slip ring, and when the clamping rod extends out of the protective frame, the clamping rod can resist on the resistance block, so that the circular ring rotates and resets, and at this time, the clamping rod is at the top of the convex ring to limit the slip ring, and the limit block does not resist the convex ring.

[0010] Preferably, the protection components are provided in two groups, one group of the protection components is provided on the pump outlet end, and the other group of the protection components is provided on the suction end.

[0011] Compared with the prior art, the utility model provides a plunger pump with the following beneficial effects:

[0012] 1. The plunger pump, through the protection component provided, can release the limit of the slip ring after the pipeline and the suction end and the pump outlet are connected with the bolts, so that the buckle cover can be rotated at the position hinged with the installation groove, so that the buckle cover is buckled on the top of the protection frame, thereby protecting the bolts of the pipeline connected to the pump outlet, thereby preventing oil or other debris from being stained on the bolts, causing the bolts to slip or get stuck when they need to be disassembled later, making them difficult to disassemble.

[0013] 2. When the plunger pump needs to be disassembled, it is only necessary to manually pull the slip ring downward, and the slip ring moves downward with the circular ring. When the convex block on the inner side of the circular ring is resisted by the fixed block, the circular ring rotates a certain angle so that the limit block can be at the top of the convex ring. At this time, the slip ring is loosened, and the slip ring moves upward a certain distance under the action of the connecting spring, and the limit block resists the top of the convex ring, thereby limiting the slip ring. At this time, the slip ring no longer resists the buckle cover. Under the action of the volute spring, the buckle cover rotates open, and it is only necessary to use a tool to remove the bolt. At this time, the connecting nut no longer resists the connecting ring. Under the action of the reset spring, the push rod is reset, and the push rod pushes the clamping rod out of the protective frame through the support rod. The clamping rod can resist the resistance block, so that the circular ring rotates and resets. At this time, the clamping rod is at the top of the convex ring to limit the slip ring, and the limit block does not resist the convex ring, and the reset is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the protection part and the control part of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the protective frame of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the protection part of the utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the protective frame and the slip ring of the utility model;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the connection between the slip ring and the control unit of the utility model.

[0020] In the figure: 1. pump body; 2. protection part; 21. protection frame; 22. installation groove; 23. buckle cover; 24. scroll spring; 25. vertical groove; 26. slider; 27. slip ring; 28. connecting spring; 3. control part; 31. connecting ring; 32. push rod; 33. reset spring; 34. support rod; 35. clamping rod; 36. circular ring; 37. convex ring; 38. convex block; 39. fixing block; 310. limiting block; 311. abutment block; 4. suction end; 5. pump outlet; 6. connecting flange; 7. embedding groove; 8. connecting nut. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 6As shown, the utility model provides a technical solution: a plunger pump, including a pump body 1 and a suction end 4 and a pump outlet 5 arranged on the pump body 1, the suction end 4 and the pump outlet 5 are both provided with a connecting flange 6, and the pump outlet 5 is provided with a protective component for protecting the connecting flange 6, and the protective component is composed of a protective part 2 and a control part 3.

[0022] The protection part 2 includes a protection frame 21, which is penetrated by the pump outlet end 5 and fixedly connected to the pump outlet end 5. The protective frame 21 has a mounting groove 22 on its side, and a buckle cover 23 is hinged on the inner side of the mounting groove 22. A volute spring 24 is fixed on the surface of the buckle cover 23. One end of the volute spring 24 away from the buckle cover 23 is fixed on the inner side of the mounting groove 22. A vertical groove 25 is formed on the surface of the protection frame 21. A slider 26 is slidably installed on the inner side of the vertical groove 25. One end of the slider 26 away from the vertical groove 25 is fixed on the inner side of the slip ring 27. The bottom of the slider 26 is fixed with a connecting member. The connecting spring 28 has one end away from the slider 26 and is fixed on the inner side of the vertical groove 25. When the slider 26 and the slip ring 27 move upward under the action of the connecting spring 28, the slip ring 27 can abut against the buckle cover 23, so that the buckle cover 23 rotates at a position hinged with the mounting groove 22, so that the buckle cover 23 is buckled on the top of the protective frame 21, thereby protecting the bolts of the pipeline connected to the pump outlet 5, thereby preventing oil or other debris from being contaminated on the bolts, causing the bolts to slip or get stuck when they need to be disassembled later, making them difficult to disassemble.

[0023] An embedding groove 7 is provided at the bottom of the protective frame 21, and a connecting nut 8 is placed inside the embedding groove 7. After the flange of the pipeline is aligned with the connecting flange 6, bolts are passed through the mounting holes and the embedding groove 7 on the connecting flange 6. By turning the bolts, the bolts can be connected to the connecting nut 8 for tightening.

[0024] The control part 3 includes a connecting ring 31, which is slidably installed on the inner side of the embedding groove 7. The inner side of the embedding groove 7 is penetrated by the push rod 32 and is slidably connected to the push rod 32. A return spring 33 is fixed on the inner wall of the protective frame 21. The end of the return spring 33 away from the protective frame 21 is fixed to the surface of the push rod 32. The top of the push rod 32 is hinged with a support rod 34. The end of the support rod 34 away from the push rod 32 is hinged with a clamping rod 35. The clamping rod 35 penetrates the protective frame 21 and is slidably connected to the protective frame 21. A circular ring 36 is rotatably installed on the inner side of the slip ring 27. A convex ring 37, a convex block 38 and an abutment block 311 are fixed on the inner side of the circular ring 36. A fixed block 39 and a limit block 310 are fixed on the surface of the protective frame 21. The clamping rod 35 can abut on the top of the convex ring 37, so that The circular ring 36 and the slip ring 27 are limited. When the slip ring 27 is manually pulled downward, the slip ring 27 moves downward with the circular ring 36. When the protrusion 38 on the inner side of the circular ring 36 is abutted by the fixed block 39, the circular ring 36 rotates a certain angle so that the limit block 310 can be at the top of the protrusion 37. At this time, the slip ring 27 is released. Under the action of the connecting spring 28, the slip ring 27 moves upward a certain distance. The limit block 310 abuts against the top of the protrusion 37, thereby limiting the slip ring 27. When the clamping rod 35 extends out of the protective frame 21, the clamping rod 35 can abut on the abutment block 311, so that the circular ring 36 rotates and resets. At this time, the clamping rod 35 is at the top of the protrusion 37 to limit the slip ring 27, and the limit block 310 does not abut against the protrusion 37.

[0025] There are two groups of protection components, one group of protection components is arranged on the pump outlet end 5 , and the other group of protection components is arranged on the suction end 4 .

[0026] Based on the above embodiment, when connecting the pipeline to the suction end 4 and the pump outlet end 5 of the pump body 1, it is only necessary to align the flange of the pipeline with the connecting flange 6 and install it. After the bolts are passed through the connecting flange 6, the bolts are passed through the embedded groove 7 and the connecting ring 31 to be connected with the connecting nut 8. As the bolts are continuously turned, the connecting nut 8 moves upward and abuts against the connecting ring 31, pushing the connecting ring 31 to move upward together. When the connecting ring 31 abuts against the inner side of the embedded groove 7, the bolts are tightened to complete the installation.

[0027] At the same time, the connecting ring 31 abuts against the push rod 32, pushing the push rod 32 to move upward, and the push rod 32 pulls the clamping rod 35 into the protective frame 21 through the support rod 34, and the clamping rod 35 no longer abuts against the convex ring 37, thereby releasing the limit on the slip ring 27. Under the action of the connecting spring 28, the slider 26 moves upward with the slip ring 27, and the slip ring 27 abuts against the buckle cover 23, so that the buckle cover 23 rotates at the position hinged with the mounting groove 22, so that the buckle cover 23 is buckled on the top of the protective frame 21, thereby protecting the bolts of the pipeline connected to the pump outlet 5, thereby preventing oil or other debris from being contaminated on the bolts, causing the bolts to slip or get stuck when they need to be disassembled later, making them difficult to disassemble.

[0028] When it is necessary to disassemble, the slip ring 27 only needs to be manually pulled downward, and the slip ring 27 moves downward with the circular ring 36. When the protrusion 38 on the inner side of the circular ring 36 is abutted by the fixing block 39, the circular ring 36 rotates a certain angle so that the limit block 310 can be at the top of the protruding ring 37. At this time, the slip ring 27 is released, and the slip ring 27 moves upward a certain distance under the action of the connecting spring 28. The limit block 310 abuts against the top of the protruding ring 37, thereby limiting the slip ring 27. At this time, the slip ring 27 no longer abuts against the buckle cover 23. Under the action of the spiral spring 24, the buckle cover 23 rotates to open, and the bolts only need to be removed with a tool. At this time, the connecting nut 8 no longer conflicts with the connecting ring 31. Under the action of the reset spring 33, the push rod 32 is reset, and the push rod 32 pushes the clamping rod 35 out of the protective frame 21 through the support rod 34. The clamping rod 35 can be in contact with the interference block 311, so that the ring 36 rotates and resets. At this time, the clamping rod 35 is at the top of the convex ring 37 to limit the slip ring 27. At the same time, the limit block 310 does not conflict with the convex ring 37, and the reset is completed.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A plunger pump, comprising a pump body (1) and a suction end (4) and a pump outlet (5) arranged on the pump body (1), wherein the suction end (4) and the pump outlet (5) are both provided with a connecting flange (6), characterized in that: A protection component for protecting the connecting flange (6) is arranged on the pump outlet end (5), and the protection component is composed of a protection part (2) and a control part (3).

2. A plunger pump according to claim 1, characterized in that: The protection part (2) comprises a protection frame (21), the protection frame (21) is penetrated by the pump outlet end (5) and is fixedly connected to the pump outlet end (5), a mounting groove (22) is provided on the fixing edge of the protection frame (21), a buckle cover (23) is hingedly connected to the inner side of the mounting groove (22), a spiral spring (24) is fixed on the surface of the buckle cover (23), and the end of the spiral spring (24) away from the buckle cover (23) is fixed to the inner side of the mounting groove (22), a vertical groove (25) is provided on the surface of the protection frame (21), a slider (26) is slidably installed on the inner side of the vertical groove (25), the end of the slider (26) away from the vertical groove (25) is fixed to the inner side of a slip ring (27), a connecting spring (28) is fixed to the bottom of the slider (26), and the end of the connecting spring (28) away from the slider (26) is fixed to the inner side of the vertical groove (25).

3. A plunger pump according to claim 2, characterized in that: An embedding groove (7) is provided at the bottom of the protection frame (21), and a connecting nut (8) is placed inside the embedding groove (7).

4. A plunger pump according to claim 3, characterized in that: The control part (3) comprises a connecting ring (31), the connecting ring (31) is slidably mounted on the inner side of the embedding groove (7), the inner side of the embedding groove (7) is penetrated by a push rod (32) and is slidably connected to the push rod (32), a return spring (33) is fixed on the inner wall of the protective frame (21), one end of the return spring (33) away from the protective frame (21) is fixed on the surface of the push rod (32), and a support rod (34) is hinged on the top of the push rod (32).

5. A plunger pump according to claim 4, characterized in that: A clamping rod (35) is hingedly connected to one end of the support rod (34) away from the top rod (32); the clamping rod (35) penetrates the protective frame (21) and is slidably connected to the protective frame (21); a circular ring (36) is rotatably mounted on the inner side of the slip ring (27); a convex ring (37), a convex block (38) and an abutment block (311) are fixed on the inner side of the circular ring (36); and a fixing block (39) and a limit block (310) are fixed on the surface of the protective frame (21).

6. A plunger pump according to claim 1, characterized in that: The protection components are provided in two groups, one group of the protection components is provided on the pump outlet end (5), and the other group of the protection components is provided on the suction end (4).

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