Flange clamp axial limiting type detachable pump head

Abstract

The utility model discloses a flange clamp axial limiting type detachable pump head, and relates to the technical field of plunger pumps, the flange clamp axial limiting type detachable pump head comprises a pump body, the pump body is provided with a first pump body and a second pump body which are detachably connected, and a clamping assembly is arranged at the joint of the first pump body and the second pump body. Protruding parts are arranged at the connecting positions of the first pump body and the clamping assembly and the connecting positions of the second pump body and the clamping assembly, the protruding parts can be wrapped by the clamping assembly, the plunger pump is fast and simple to disassemble, and parts of the plunger pump are high in connecting strength and good in sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a flange clamp axially limited detachable pump head. 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 solvent in 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. At present, the industry usually uses an integrated pump unit, in which the pump body and the pump head are fixedly connected. The plunger pump is difficult to disassemble and install. The process of disassembling and installing the plunger pump is time-consuming and labor-intensive, and the labor cost required is high. For certain industries with high disinfection and washing requirements, the complete disassembly and replacement of the plunger pump will also lead to increased production costs. For example, in the food or medical industry, once the plunger pump is completely disassembled, the parts in contact with the plunger pump need to be thoroughly disinfected. For this reason, a detachable plunger pump can address the above-mentioned problems. For example, the existing patent CN202210204810.3 discloses a plunger assembly and a plunger pump. The plunger assembly of the utility model includes: a plunger rod, one end of which has a first flange; a slider rod, one end of which has a second flange; and a connecting ring, the connecting ring including a first half ring and a second half ring that are detachably connected, the first half ring having a first groove on its inner wall, the second half ring having a second groove on its inner wall, the first groove and the second groove forming a first annular groove, wherein the first flange abuts the second flange, the connecting ring is sleeved on the first flange and the second flange, and the first flange and the second flange are clamped in the first annular groove. The plunger assembly of the utility model has the advantages of being easy to assemble and easy to maintain, but the solution still has room for improvement in terms of fixing and disassembly convenience. Summary of the Invention

[0003] The purpose of the utility model is to provide a flange clamp axially limited detachable pump head, which can realize quick and simple disassembly of the plunger pump, and the connection strength of the plunger pump components is high and the sealing performance is good.

[0004] In order to solve the above technical problems, the utility model specifically provides the following technical solutions: a flange clamp axially limited detachable pump head, including a pump body, the pump body having a first pump body and a second pump body that are detachably connected, a clamping assembly is provided at the connection between the first pump body and the second pump body, a protrusion is provided at the connection between the first pump body and the second pump body and the clamping assembly, and the clamping assembly can cover the protrusion.

[0005] The detachable connection scheme between the first pump body and the second pump body enables the pump body to be quickly disassembled and its internal components to be replaced, thus solving the problem of difficulty in disassembling the plunger pump and the cost of replacing plunger pump parts. The method of arranging pump body connectors on the outside of the first pump body and the second pump body is used to ensure that the first pump body and the second pump body are continuously tightly connected, solving the problem of increased difficulty in pump body processing due to the need to set threaded connection holes or other connection methods on the first pump body and the second pump body.

[0006] According to one embodiment of the present invention, the protrusion is a ring structure, disposed on the outside of the first and second clamping bodies. The ring structure has a tapered surface, with the first groove mateable with this tapered surface. The tapered surface of the protrusion provided on the first and second pump bodies enhances compatibility with the tapered surface of the first groove of the clamping assembly, thereby achieving a tighter clamping effect and improving the sealing and connection strength of the clamping assembly.

[0007] According to one embodiment of the present invention, the clamping assembly includes a first clamping body, one end of which is rotatably connected to a second clamping body via a connecting plate. The first and second clamping bodies have a first groove capable of covering a protruding portion. The first and second clamping bodies cover the outer walls of the first and second pump bodies, with a gap formed therein. The first and second clamping bodies are respectively provided with a first extension plate and a second extension plate at the gap. The first and second extension plates are connected by a fastener, and the size of the gap is controlled by controlling the assembly position of the fastener relative to the first and second extension plates.

[0008] The first clamp and the second clamp are in contact with the surfaces of the first pump body and the second pump body to achieve the purpose of covering and clamping the connection gap between the first body and the second pump body, thereby solving the problem that the gap may cause internal medium leakage, and utilizing the first clamp and the second clamp to ensure the connection strength between the first pump body and the second pump body, thereby avoiding loosening of the connection between the two or separation of the contact surfaces between the two.

[0009] In some usage scenarios, the connection tightness between the first pump body and the second pump body can be observed through the gap between the first extension plate and the second extension plate, solving the problem that the connection between the first pump body and the second pump body is difficult to observe when the pump body connector is installed.

[0010] According to one embodiment of the present invention, a first extension plate is provided at the non-rotatable connection end between the first and second clamping bodies, and a second extension plate is provided at the non-rotatable connection end between the second clamping body and the first clamping body. The first extension plate and the second extension plate are connected by a fastener. The fastener can control the spacing between the first and second extension plates, thereby controlling the degree of clamping tightness between the first and second clamping bodies relative to the first and second pump bodies to ensure secure clamping of the first and second pump bodies.

[0011] According to one embodiment of the present invention, a pump head is connected to one end of the pump body. The first pump body and the second pump body have a coaxial communication hole. The pump head has an assembly hole connected to the communication hole. A plunger rod is mounted in the communication hole. The plunger rod can be displaced relative to the assembly hole to ensure normal operation of the plunger pump. An elastic member, which is a spring, is sleeved on the plunger rod to achieve reciprocating motion of the plunger rod.

[0012] According to one embodiment of the present invention, a cavity communicating with the assembly hole is built into the pump head to enable the plunger pump to operate normally.

[0013] According to one embodiment of the present invention, a mounting groove is provided at the end of the assembly hole adjacent to the pump body, and a sealing component is provided in the mounting groove. The sealing component surrounds and contacts the plunger rod.

[0014] The sealing assembly includes a first sealing sleeve and a sealing pressure ring. The first sealing sleeve abuts against the pump body, and the sealing pressure ring abuts against the pump head. The first sealing sleeve is provided with a groove close to the sealing pressure ring. The second sealing sleeve is provided in the groove. The sealing pressure ring squeezes and fixes the second sealing sleeve in the groove of the first sealing sleeve.

[0015] The second sealing sleeve contains an annular cavity with a sealing ring. The pump head and other components are connected by a seam, and the reciprocating motion of the plunger within the pump head can easily drag out liquid. The sealing assembly ensures the tightness of the seam between the pump head and other components, and the sealing assembly cooperates with the plunger to reduce wear at the seam between the pump head and other components during the reciprocating motion of the plunger.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the detachable connection scheme between the first pump body and the second pump body of the present invention can realize the rapid disassembly of the pump body and the replacement of its internal components, thereby solving the problem of difficulty in disassembling the plunger pump and the cost of replacing plunger pump parts. The method of arranging pump body connectors on the outside of the first pump body and the second pump body is used to ensure that the first pump body and the second pump body are continuously and tightly connected, solving the problem of increased difficulty in pump body processing due to the need to set threaded connection holes or other connection methods on the first pump body and the second pump body.

[0017] The solution provided by the utility model realizes quick and simple disassembly of the plunger pump, and the connection strength of the plunger pump components is high and the sealing performance is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0019] Figure 1 This is a schematic diagram of a flange clamp axially limited detachable pump head of the utility model;

[0020] Figure 2 This is a side view of a flange clamp axially limited detachable pump head of the utility model;

[0021] Figure 3 This is a top view of a flange clamp axially limited detachable pump head of the utility model;

[0022] Figure 4 for Figure 3 Middle AA section view;

[0023] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0024] Figure 6 for Figure 4 A partial enlarged view of the middle A;

[0025] Figure 7 This is a schematic structural diagram of the clamping assembly solution of the present utility model.

[0026] Description of reference numerals:

[0027] 1. Pump head; 2. Clamping assembly; 21. First clamp body; 22. Connecting plate; 23. Second clamp body; 24. First trough body; 25. Second extension plate; 26. First extension plate; 27. Fastener; 3. Pump body; 31. First pump body; 32. Second pump body; 4. Cavity; 5. Plunger rod; 6. Sealing assembly; 61. First sealing sleeve; 62. Sealing pressure ring; 63. Second sealing sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The following first describes the concepts involved in this application with reference to the accompanying drawings. It should be noted that the following description of each concept is intended only to make the content of this application easier to understand and does not limit the scope of protection of this application. At the same time, the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The following detailed description of this application will be made with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] Example 1

[0031] like Figure 1 -Attached Figure 4 As shown, a flange clamp axially limited detachable pump head includes a pump body 3, the pump body has a first pump body 31 and a second pump body 32 that are detachably connected, a clamping assembly 2 is provided at the connection between the first pump body 31 and the second pump body 32, a protrusion is provided at the connection between the first pump body 31 and the second pump body 32 and the clamping assembly 2, and the clamping assembly 2 can cover the protrusion.

[0032] The detachable connection scheme between the first pump body 31 and the second pump body 32 can realize the rapid disassembly of the pump body 3 and the replacement of its internal components, thus solving the problem of difficulty in disassembling the plunger pump and the cost of replacing the plunger pump parts. The pump body connector 2 is arranged on the outside of the first pump body 31 and the second pump body 32 to ensure that the first pump body 31 and the second pump body 32 are continuously tightly connected, solving the problem that the processing difficulty of the pump body 3 increases due to the need to set threaded connection holes or other connection methods on the first pump body 31 and the second pump body 32.

[0033] like Figure 6 -Attached Figure 7 As shown, the protrusion is a ring structure, located outside the first clamping body 21 and the second clamping body 23. The ring structure has a tapered surface, and the first groove 24 is adapted to fit within this tapered surface. The tapered surfaces of the protrusions on the first pump body 31 and the second pump body 32 enhance the fit with the tapered surface of the first groove 24 of the clamping assembly 2, thereby achieving a tighter clamping effect and improving the sealing and connection strength of the clamping assembly 2.

[0034] like Figure 7 As shown, the clamping assembly 2 includes a first clamping body 21, one end of which is rotatably connected to a second clamping body 23 via a connecting plate 22. The first clamping body 21 and the second clamping body 23 have a first groove 24 that can cover the protrusion. The first clamping body 21 and the second clamping body 23 cover the outer walls of the first pump body 31 and the second pump body 32, leaving a gap. The first clamping body 21 and the second clamping body 23 are respectively provided with a first extension plate 26 and a second extension plate 25 at the gap. The first extension plate 26 and the second extension plate 25 are connected by a fastener 27. The size of the gap is controlled by controlling the assembly position of the fastener 27 relative to the first extension plate 26 and the second extension plate 25.

[0035] The first clamp 21 and the second clamp 23 are in contact with the surfaces of the first pump body 31 and the second pump body 32 to achieve the purpose of covering and clamping the connection gap between the first body 31 and the second pump body 32, thereby solving the problem that the gap may cause internal medium leakage, and utilizing the first clamp 21 and the second clamp 23 to ensure the connection strength between the first pump body 31 and the second pump body 32, thereby avoiding loosening of the connection between the two or separation of the contact surfaces between the two.

[0036] In some usage scenarios, the connection tightness between the first pump body 31 and the second pump body 32 can be observed through the gap between the first extension plate 26 and the second extension plate 25, solving the problem that the connection between the first pump body 31 and the second pump body 32 is difficult to observe when the pump body connector 2 is installed.

[0037] like Figure 7 As shown, a first extension plate 26 is provided at the non-rotatable connection end between the first clamp body 21 and the second clamp body 23, and a second extension plate 25 is provided at the non-rotatable connection end between the second clamp body 23 and the first clamp body 21. The first extension plate 26 and the second extension plate 25 are connected by a fastener 27. The fastener 27 can control the spacing between the first extension plate 26 and the second extension plate 25, thereby controlling the change in the clamping tightness of the first clamp body 21 and the second clamp body 23 relative to the first pump body 31 and the second pump body 32 to ensure the clamping of the first pump body 31 and the second pump body 32.

[0038] like Figure 4 As shown, one end of the pump body 3 is connected to the pump head 1. The first pump body 31 and the second pump body 32 have a coaxial communication hole. The pump head 1 has an assembly hole connected to the communication hole. The communication hole is equipped with a plunger rod 5. The plunger rod 5 can move relative to the assembly hole to ensure the normal operation of the plunger pump. The pump head 1 has a built-in cavity 4 connected to the assembly hole to ensure the normal operation of the plunger pump.

[0039] In this embodiment, the number of plunger rods 5 is at least one, and the specific number is selected according to actual production and use requirements. For example, two plunger rods 5 can be a group, and 1 group, 2 groups, 3 groups, 4 groups, 5 groups, 6 groups, 7 groups, 8 groups, 9 groups, 10 groups, 11 groups... are selected according to production requirements.

[0040] like Figure 4 、 Figure 6 As shown, a mounting groove is provided at the end of the assembly hole adjacent to the pump body 3 , and a sealing assembly 6 is provided in the mounting groove. The sealing assembly 6 surrounds and contacts the plunger rod 5 .

[0041] The sealing assembly 6 includes a first sealing sleeve 61 and a sealing pressure ring 62. The first sealing sleeve 61 abuts against the pump body 3, and the sealing pressure ring 62 abuts against the pump head 1. The first sealing sleeve 61 is provided with a groove on the side close to the sealing pressure ring 62, and a second sealing sleeve 63 is provided in the groove. The sealing pressure ring 62 squeezes and fixes the second sealing sleeve 63 in the groove of the first sealing sleeve 61.

[0042] The second sealing sleeve 63 has an annular cavity within it, which is equipped with a sealing ring. The pump head 1 has a joint with other components, and the plunger rod 5 reciprocates within the pump head 1, which can easily carry away liquid. The sealing assembly 6 is provided to ensure the sealing of the joint between the pump head 1 and other components. The sealing assembly 6 cooperates with the plunger rod 5 to reduce wear at the joint between the pump head 1 and other components during the reciprocating motion of the plunger rod 5.

[0043] Example 2:

[0044] In this embodiment, an elastic member 51 is sleeved on the plunger rod 5 . The elastic member 51 is a spring and is used to realize the reciprocating motion of the plunger rod 5 .

[0045] Example 3:

[0046] In this embodiment, the fasteners are bolts fastened with butterfly nuts. The butterfly nuts are convenient for disassembly and installation without instruments, making it easy for the present invention to be disassembled by hand to complete the disinfection and washing process and reinstalled, avoiding the need to use tools and disinfect and wash the tools, thereby reducing the workload of the operator.

[0047] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any person skilled in the art may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A flange clamp axially limited detachable pump head, comprising a pump body (3), wherein the pump body has a first pump body (31) and a second pump body (32) that are detachably connected, characterized in that: A clamping assembly (2) is provided at the connection between the first pump body (31) and the second pump body (32), and a protrusion is provided at the connection between the first pump body (31) and the second pump body (32) and the clamping assembly (2), and the clamping assembly (2) is capable of covering the protrusion.

2. The flange clamp axially limited detachable pump head according to claim 1, characterized in that: The protruding portion is a ring structure, and the ring structure is respectively arranged outside the first clamping body (21) and the second clamping body (23).

3. The flange clamp axially limited detachable pump head according to claim 1, characterized in that: The clamping assembly (2) comprises a first clamping body (21), one end of the first clamping body (21) is rotatably connected to a second clamping body (23) via a connecting plate (22), and the first clamping body (21) and the second clamping body (23) have a first groove (24) capable of covering a protruding portion.

4. The flange clamp axially limited detachable pump head according to claim 3, characterized in that: A first extension plate (26) is provided at the non-rotating connection end between the first clamp body (21) and the second clamp body (23), a second extension plate (25) is provided at the non-rotating connection end between the second clamp body (23) and the first clamp body (21), and the first extension plate (26) and the second extension plate (25) are connected via a fastener (27).

5. The flange clamp axially limited detachable pump head according to claim 1, characterized in that: One end of the pump body (3) is connected to a pump head (1); the first pump body (31) and the second pump body (32) have a coaxial communicating hole; the pump head (1) has an assembly hole communicating with the communicating hole; a plunger rod (5) is assembled in the communicating hole; and the plunger rod (5) is capable of displacement relative to the assembly hole.

6. The flange clamp axially limited detachable pump head according to claim 5, characterized in that: The pump head (1) is internally provided with a cavity (4) that is in communication with the assembly hole.

7. The flange clamp axially limited detachable pump head according to claim 5, characterized in that: An installation groove is provided at the end of the assembly hole adjacent to the pump body (3), and a sealing component (6) is provided in the installation groove. The sealing component (6) surrounds and contacts the plunger rod (5).

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