Quick-release clamping hoop type detachable pump head

Abstract

The utility model discloses a hoop type detachable pump head with a quick-release clamp. Belongs to the technical field of plunger pumps, and comprises a pump head, a pump body is assembled on one side of the pump head, the pump body is provided with a first pump body and a second pump body which are detachably connected, and a pump body connecting piece is arranged on the outer side of the joint of the first pump body and the second pump body. According to the detachable connection scheme of the first pump body and the second pump body, the pump bodies can be rapidly disassembled, parts in the pump bodies can be replaced, and the problems that the plunger pump is difficult to disassemble and the parts of the plunger pump are low in replacement cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a quick-release clamp-hoop type 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 quick-release clamp-type detachable pump head, so that the pump head, pump body and plunger rod can be quickly disassembled and assembled as needed.

[0004] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: a quick-release clamp-type detachable pump head, including a pump head, a pump body assembled on one side of the pump head, the pump body having a first pump body and a second pump body that are detachably connected, and a pump body connector is provided on the outside of the connection between the first pump body and the second pump body. The detachable connection scheme between the first pump body and the second pump body can realize the rapid disassembly of the pump body and the replacement of its internal components, thereby solving the problem of the difficulty in disassembling the plunger pump and the cost of replacing plunger pump parts. The pump body connector is provided on the outside of the first pump body and the second pump body to ensure that the first pump body and the second pump body are continuously tightly connected, thereby solving the problem of increased difficulty in pump body processing due to the need to provide threaded connection holes or other connection methods on the first pump body and the second pump body.

[0005] According to one embodiment of the present invention, the pump body connector has a second clamp that contacts the outer surfaces of the first pump body and the second pump body. The second clamp is in contact with the surfaces of the first pump body and the second pump body to achieve covering and clamping the connection gap between the first pump body and the second pump body, thereby solving the problem that the gap may cause leakage of the internal medium, and utilizing 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.

[0006] According to one embodiment of the present invention, the second clamp has an opening, and protrusions are respectively provided on the second clamp on either side of the opening, and the two protrusions are connected by a fastener. The fastener can control the spacing between the two protrusions, thereby controlling the change in the tightness of the second clamp relative to the first and second pump bodies to ensure the clamping of the first and second pump bodies. More importantly, by controlling the spacing between the two protrusions of the second clamp, the coaxiality of the first and second pump bodies, as well as the coaxiality of the first and second pump bodies, as well as the coaxiality of the first and second pump bodies, the first hole and the plunger rod can be controlled. The coaxiality of the first and second pump bodies, the first hole and the plunger rod can also be corrected by adjusting the spacing between the two protrusions.

[0007] In certain usage scenarios, the tightness of the connection between the first pump body and the second pump body can be observed through the gap between the two protrusions, 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.

[0008] According to one embodiment of the present invention, the fastener has a connecting rod, one end of the connecting rod is connected to a limiting rod, the other end of the connecting rod can pass through two protrusions and is connected to a first clamp, and the first clamp has a connecting pin rotatably connected to the connecting rod. The limiting rod abuts against a protrusion that is not in contact with the first clamp, the first clamp and the connecting pin are rotatably connected, the first clamp is an arc-shaped plate structure and has an arc surface, the arc surface can fit with the surface of the second clamp, and when the first clamp fits with the second clamp surface, the distance between the two protrusions of the second clamp is reduced. Specifically, the fitting of the first clamp with the second clamp surface causes the first clamp to rotate relative to the connecting pin, and the first clamp is an arc-shaped plate. When it moves, it drives the connecting pin at its end to move together. In this process, the displacement of the connecting pin causes the distance between the two protrusions to shrink, thereby controlling the change in the clamping tightness of the second clamp relative to the first pump body and the second pump body.

[0009] According to one embodiment of the present invention, the first and second pump bodies are connected by a plug-in connection or by a connecting pin. This detachable connection between the first and second pump bodies allows for quick disassembly of the pump bodies and replacement of internal components, thereby resolving the difficulties associated with disassembly of plunger pumps and the cost of replacing plunger pump components.

[0010] According to one embodiment of the present invention, a first hole body that is coaxial and has the same diameter is provided on the first pump body and the second pump body, a plunger rod is provided in the first hole body, a matching hole that is coaxial with the first hole body is built into the pump body, the plunger rod can enter and exit the matching hole, and the pump body also has a first chamber that is connected to the matching hole to realize the normal operation of the plunger pump.

[0011] According to one embodiment of the present invention, a sealing groove is provided at the end of the matching hole close to the pump head, the sealing groove matches the plunger rod, a sealing assembly is provided in the sealing groove, and the sealing assembly surrounds the plunger rod.

[0012] There is a joint between the pump head and other components. The plunger rod reciprocates inside the pump head, which can easily bring out liquid. A sealing assembly is provided to ensure the sealing of the joint between the pump head and other components, and the sealing assembly cooperates with the plunger rod to reduce the wear on the joint between the pump head and other components during the reciprocating motion of the plunger rod.

[0013] According to one embodiment of the present invention, 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.

[0014] The sealing assembly adopts a first sealing sleeve to contact the plunger rod, thereby improving the axial sealing of the plunger rod and reducing the wear of the plunger rod during the reciprocating motion of the plunger rod; the method of setting the sealing assembly on the contact surface of the pump body and the pump head can reduce the pressure when the pump body and the pump head surface are in contact. Specifically, the pump body and the pump head are detachably connected. The coaxiality of the two needs to be ensured during installation and the installation accuracy deviation caused by too fast assembly of the two needs to be avoided. The set sealing assembly can play a certain buffering and positioning effect when the pump body and the pump head surface are in contact, thereby avoiding too fast installation accuracy deviation of the two and surface friction and collision between the pump body and the pump head when the pump body and the pump head are assembled too quickly.

[0015] According to one embodiment of the present invention, the second sealing sleeve has an annular cavity within it, which is provided with a sealing ring. The second sealing sleeve contacts the plunger rod and cooperates with the first sealing sleeve to improve the sealing performance of the sealing assembly. The second sealing sleeve secures the sealing ring to prevent it from moving on the surface of the plunger rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention sets the pump body as a detachable connection scheme of the first pump body and the second pump body, which can realize the rapid disassembly of the pump body and the replacement of its internal components, thereby solving the problem of the difficulty in disassembling the plunger pump and the cost of replacing the plunger pump parts, and adopts the pump body connector to ensure that the first pump body and the second pump body are continuously and tightly connected, and to correct the coaxiality of the first pump body, the second pump body, the first hole body and the plunger rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is a schematic diagram of a quick-release clamp-type detachable pump head of the utility model;

[0019] Figure 2 This is a side view of a quick-release clamp-type detachable pump head of the utility model;

[0020] Figure 3 This is a top view of a quick-release clamp-type detachable pump head of the utility model;

[0021] Figure 4 for Figure 3 Cross-sectional view in the AA direction;

[0022] Figure 5 for Figure 4 A partial enlarged view of the M in the middle;

[0023] Figure 6 for Figure 4 A partial enlarged view of the K point in the middle;

[0024] Figure 7 This is a schematic structural diagram of the pump head connector solution of the present utility model.

[0025] Description of reference numerals:

[0026] 1. Pump head; 2. Pump body connector; 21. First clamp; 22. Connecting pin; 23. Fastener; 24. Second clamp; 25. First groove; 3. Pump body; 31. First pump body; 32. Second pump body; 4. First chamber; 5. Plunger rod; 51. Elastic member; 6. Sealing assembly; 61. First sealing sleeve; 62. Sealing pressure ring; 63. Second sealing sleeve. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] Example 1

[0030] like Figure 1 -Attached Figure 4 As shown, a quick-release clamp-type detachable pump head includes a pump head 1, and a pump body 3 is assembled on one side of the pump head 1. The pump body 3 has a first pump body 31 and a second pump body 32 that are detachably connected. A pump body connector 2 is provided on the outside of the connection between the first pump body 31 and the second pump body 32. 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, thereby solving the problem of the difficulty in disassembling the plunger pump and the cost of replacing the plunger pump parts. The pump body connector 2 is provided 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, thereby solving the problem that the processing difficulty of the pump body 3 increases due to the need to provide threaded connection holes or other connection methods on the first pump body 31 and the second pump body 32.

[0031] See attached Figure 7 As shown, the pump body connector 2 has a second clamp 24 that contacts the outer surfaces of the first pump body 31 and the second pump body 32. The second clamp 24 is in contact with the surfaces of the first pump body 31 and the second pump body 32 to cover and clamp the connection gap between the first pump body 31 and the second pump body 32, thereby solving the problem that the gap may cause internal medium leakage, and utilizing the second clamp 24 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.

[0032] The second clamping body 24 has an opening, and protrusions are respectively provided on the second clamping body 24 on both sides of the opening, and the two protrusions are connected by a fastener 23. The fastener 23 can control the spacing between the two protrusions, thereby controlling the change in the tightness of the clamping of the second clamping body 24 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. More importantly, by controlling the spacing between the two protrusions of the second clamping body 24, the coaxiality of the first pump body 31 and the second pump body 32, as well as the coaxiality of the first pump body 31 and the second pump body 32 and the plunger rod 5 can be controlled. The coaxiality of the first pump body 31, the second pump body 32, the first orifice and the plunger rod 5 can also be corrected by adjusting the spacing between the two protrusions.

[0033] 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 two protrusions, 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.

[0034] The fastener 23 includes a connecting rod, one end of which is connected to a limiting rod, and the other end of which is capable of passing through two protrusions and connected to a first clamp 21. The first clamp 21 has a connecting pin 22 that is rotatably connected to the connecting rod. The limiting rod abuts against a protrusion that is not in contact with the first clamp 21. The first clamp 21 and the connecting pin 22 are rotatably connected. The first clamp 21 is a curved plate structure with a curved surface that can conform to the surface of the second clamp 24. When the first clamp 21 and the second clamp 24 conform to the surface, the distance between the two protrusions of the second clamp 24 is reduced. Specifically, the conformation of the first clamp 21 and the second clamp 24 causes the first clamp 21 to rotate relative to the connecting pin 22. The displacement of the first clamp 21, as a curved plate, drives the connecting pin 22 at its end to also displace. During this process, the displacement of the connecting pin 22 causes the distance between the two protrusions to decrease, thereby controlling the change in the clamping tightness of the second clamp 24 relative to the first pump body 31 and the second pump body 32.

[0035] See attached Figure 4 , Attachment Figure 5 As shown, the first pump body 31 and the second pump body 32 are plug-in connected or connected by a connecting pin. The detachable connection between the first pump body 31 and the second pump body 32 enables the pump body 3 to be quickly disassembled and its internal components to be replaced, thus solving the problem of difficult disassembly of the plunger pump and the cost of replacing plunger pump parts.

[0036] See attached Figure 4 As shown, the first pump body 31 and the second pump body 32 are provided with a coaxial first hole of the same diameter. A plunger rod 5 is disposed within the first hole. The pump body 1 is provided with a matching hole coaxial with the first hole, through which the plunger rod 5 can enter and exit. The pump body 1 also includes a first chamber 4 connected to the matching hole to ensure normal operation of the plunger pump. In this embodiment, an elastic member 51 is sleeved on the plunger rod 5. The elastic member 51 is a spring that enables the reciprocating motion of the plunger rod 5.

[0037] See attached Figure 4 , Attachment Figure 5 As shown, a sealing groove is provided at the end of the matching hole close to the pump head 1 , the sealing groove matches the plunger rod 5 , a sealing assembly 6 is provided in the sealing groove, and the sealing assembly 6 surrounds the plunger rod 5 .

[0038] The pump head 1 has a joint with other components, and the plunger rod 5 reciprocates inside the pump head 1, which easily brings out liquid. A sealing assembly 6 is provided to ensure the sealing of the joint between the pump head 1 and other components, and the sealing assembly 6 cooperates with the plunger rod 5 to reduce the wear on the joint between the pump head 1 and other components during the reciprocating motion of the plunger rod 5.

[0039] 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.

[0040] The sealing assembly 6 adopts a first sealing sleeve 61 to contact the plunger rod 5, thereby improving the axial sealing of the plunger rod 5 and reducing the wear of the plunger rod 5 during the reciprocating motion; the method of setting the sealing assembly 6 on the contact surface of the pump body 3 and the pump head 1 can reduce the pressure when the pump body 3 and the pump head 1 are in contact with each other. Specifically, the pump body 3 and the pump head 1 are detachably connected. The coaxiality of the two needs to be ensured during installation and the installation accuracy deviation caused by too fast assembly of the two needs to be avoided. The set sealing assembly 6 can play a certain buffering and positioning effect when the pump body 3 and the pump head 1 are in contact with the surface, thereby avoiding too fast installation accuracy deviation of the two and surface friction and collision between the pump body 3 and the pump head 1 when the pump body 3 and the pump head 1 are assembled too quickly.

[0041] The second sealing sleeve 63 has an annular cavity within it, which is equipped with a sealing ring. The second sealing sleeve 63 contacts the plunger rod 5 and cooperates with the first sealing sleeve 61 to improve the sealing performance of the sealing assembly 6. The second sealing sleeve 63 is used to fix the sealing ring and prevent it from moving on the surface of the plunger rod 5.

[0042] 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.

[0043] One end of the plunger rod 5 is provided with a driving device for driving the plunger rod 5 to perform axial reciprocating motion relative to the pump body 3 and the pump head 1 .

[0044] In this embodiment, the first pump body 31 and the second pump body 32 are assembled and fixedly installed through the pump body connector 2. When disassembling the first pump body 31 and the second pump body 32, the first clamp 21 and the second clamp 24 of the pump body connector 2 can be separated to quickly disassemble the first pump body 31 and the second pump body 32.

[0045] Example 2:

[0046] See attached Figure 6 As shown, in this embodiment, the outer surfaces of the first pump body 31 and the second pump body 32 have a first groove 25, so that the roughness of the contact surface between the second clamp 24 and the first pump body 31 and the second pump body 32 can be increased, thereby improving the tightness of the connection. Of course, the first groove 25 can also be other structures that can increase the surface roughness of the first pump body 31 and the second pump body 32.

[0047] In this embodiment, there are two plunger rods 5 , but the number of plunger rods 5 and the fixing method of the plunger rods 5 can be selected according to the actual situation of conveying fluid.

[0048] 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.

[0049] 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 quick-release clamp-type detachable pump head, comprising a pump head (1), wherein one side of the pump head (1) is equipped with a pump body (3), characterized in that: The pump body (3) comprises a first pump body (31) and a second pump body (32) which are detachably connected, and a pump body connecting piece (2) is provided on the outside of the connection between the first pump body (31) and the second pump body (32).

2. The quick-release clamp-type detachable pump head according to claim 1, characterized in that: The pump body connecting member (2) has a second clamping body (24) in contact with the outer surfaces of the first pump body (31) and the second pump body (32).

3. The quick-release clamp-type detachable pump head according to claim 2, characterized in that: The second clamping body (24) has an opening, and protrusions are respectively provided on the second clamping body (24) on both sides of the opening, and the two protrusions are connected by a fastener (23).

4. The quick-release clamp-type detachable pump head according to claim 3, characterized in that: The fastener (23) has a connecting rod, one end of which is connected to a limiting rod, and the other end of which is capable of passing through two protrusions and connected to a first clamping body (21), wherein the first clamping body (21) has a connecting pin (22) rotatably connected to the connecting rod.

5. The quick-release clamp-type detachable pump head according to claim 1, characterized in that: The first pump body (31) and the second pump body (32) are plug-in connected.

6. The quick-release clamp-type detachable pump head according to claim 1, characterized in that: The first pump body (31) and the second pump body (32) are connected by a connecting pin.

7. The quick-release clamp-type detachable pump head according to claim 1, characterized in that: The first pump body (31) and the second pump body (32) are provided with a first hole body that is coaxial and has the same diameter. A plunger rod (5) is provided in the first hole body. The pump head (1) is provided with a matching hole coaxial with the first hole body. The plunger rod (5) can enter and exit the matching hole. The pump head (1) is also provided with a first chamber (4) that is connected to the matching hole.

8. The quick-release clamp-type detachable pump head according to claim 7, characterized in that: A sealing groove is provided at the end of the matching hole close to the pump head (1), the sealing groove matches the plunger rod (5), a sealing assembly (6) is provided in the sealing groove, and the sealing assembly (6) surrounds the plunger rod (5).

9. The quick-release clamp-type detachable pump head according to claim 8, characterized in that: The sealing assembly (6) comprises a first sealing sleeve (61) and a sealing pressure ring (62), wherein the first sealing sleeve (61) abuts against the pump body (3), and the sealing pressure ring (62) abuts against the pump head (1), and a groove is provided on a side of the first sealing sleeve (61) close to the sealing pressure ring (62), and a second sealing sleeve (63) is provided in the groove, and the sealing pressure ring (62) squeezes and fixes the second sealing sleeve (63) in the groove of the first sealing sleeve (61).

10. The quick-release clamp-type detachable pump head according to claim 9, characterized in that: The second sealing sleeve (63) has an annular cavity therein, and the annular cavity is provided with a sealing ring.

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