Split type pump head

Abstract

The split type pump head is used for being connected with a pump body and comprises a low-pressure body and a high-pressure body, the low-pressure body is made of plastic, a low-pressure water path communicated with a water inlet connector assembly is arranged in the low-pressure body, the high-pressure body is detachably installed on the pump body, and the high-pressure body is made of metal high-pressure-resistant materials. A high-pressure water path communicated with the water outlet connector assembly is arranged in the low-pressure body, and the low-pressure body is detachably installed on the high-pressure body and enables the low-pressure water path to be communicated with the high-pressure water path. The high-pressure main body and the low-pressure main body are separated, materials are selected specifically, the high-pressure water path is still made of high-pressure-resistant metal to ensure the pressure bearing capacity, and the low-pressure water path is made of plastic materials to reduce the cost, simplify the process and improve the design flexibility; therefore, the problems of material waste, complex processing and overlarge weight of the traditional pump head are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water pump especially relates to a split type pump head. BACKGROUND

[0002] In the traditional pump head structure, low pressure and high pressure waterway are usually integrated on the same part, and are usually made of die-cast aluminum or copper alloy material. This design can meet the strength requirement of high pressure waterway, but has the following shortcomings:

[0003] Material waste and cost problem: the requirement of low pressure waterway to material strength is far lower than that of high pressure waterway, and the use of full metal material (such as die-cast aluminum or copper alloy) will lead to excessive material performance in low pressure area, increase unnecessary material cost and processing difficulty.

[0004] Processing complexity: the integration of high and low pressure waterway in a single metal part needs to be realized through complex die-casting or machining process, which leads to low production efficiency and difficulty in structure optimization for different pressure areas.

[0005] Weight and assembly limitation: the density of metal material is large, and the weight of the whole pump head is high, which is not conducive to lightweight design and modular assembly. INVENTION CONTENTS

[0006] In view of the above problems existing in the existing pump head, the present application aims to provide a split type pump head.

[0007] The specific technical scheme is as follows:

[0008] A split type pump head is used for connecting with a pump body, comprising:

[0009] A low pressure body made of plastic has a low pressure waterway communicating with a water inlet connector assembly in it;

[0010] A high pressure body made of metal high pressure resistant material is detachably mounted on the pump body, and has a high pressure waterway communicating with a water outlet connector assembly in it, and the low pressure body is detachably mounted on the high pressure body, and the low pressure waterway is communicated with the high pressure waterway.

[0011] As a further improvement and optimization of the scheme, the high pressure body is made of die-cast aluminum or copper alloy material.

[0012] As a further improvement and optimization of the scheme, the high pressure body is connected with the pump body through a fixing bolt.

[0013] As a further improvement and optimization of the scheme, the fixing bolt is provided with at least two.

[0014] As a further improvement and optimization of the present solution, the low-pressure body and the high-pressure body are connected by connecting bolts.

[0015] As a further improvement and optimization of the present solution, the high-pressure body is provided with a high-pressure water outlet joint communicating with the high-pressure water channel, and the water outlet joint assembly is connected to the high-pressure water outlet joint.

[0016] As a further improvement and optimization of the present solution, the high-pressure body is further provided with a switching water channel, and the water inlet joint assembly communicates with the low-pressure water channel through the switching water channel.

[0017] As a further improvement and optimization of the present solution, the low-pressure body is provided with a low-pressure water inlet joint communicating with the low-pressure water channel, and one open end of the switching water channel is connected to the water inlet joint assembly and the other open end is connected to the low-pressure water inlet joint.

[0018] As a further improvement and optimization of the present solution, the low-pressure body is further provided with at least one low-pressure water outlet joint communicating with the low-pressure water channel, and the high-pressure body is provided with at least one high-pressure water inlet joint communicating with the high-pressure water channel, and the low-pressure water outlet joint communicates with the high-pressure water inlet joint.

[0019] As a further improvement and optimization of the present solution, the low-pressure body is further provided with a plurality of process holes communicating with the low-pressure water channel, and each process hole is detachably plugged by a plug.

[0020] The above technical solution has the following advantages compared with the prior art:

[0021] In the utility model, the high-pressure body and the low-pressure body are designed separately, and the materials are selected accordingly: the high-pressure water channel still adopts high-pressure resistant metal to ensure the pressure bearing capacity, and the low-pressure water channel adopts plastic material to reduce the cost, simplify the process and improve the design flexibility, so that the problems of material waste, complex processing and excessive weight of the traditional pump head are solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the split type pump head of the utility model;

[0023] In the drawings: 1, pump body; 2, high-pressure body; 3, low-pressure body; 4, water inlet joint assembly; 5, water outlet joint assembly; 6, microswitch assembly; 7, fixing bolt; 8, connecting bolt; 9, plug; 10, connecting pin; 21, switching water channel; 22, high-pressure water inlet joint; 31, low-pressure water inlet joint; 32, low-pressure water outlet joint. DETAILED DESCRIPTION

[0024] The technical solutions of the utility model will be clearly and completely described below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the description of the utility model, it needs to be explained that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like appear, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, if the terms "first", "second", "third" appear, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it needs to be explained that unless otherwise explicitly specified and limited, if the terms "mounting", "connection" and "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; or the communication between two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Figure 1 The structure of the utility model is shown in the structure diagram of the split pump head, as shown in Figure 1 The utility model relates to a split pump head, which is used for connecting with a pump body 1, comprising a low-pressure body 3 and a high-pressure body 2, the low-pressure body 3 is made of plastic, which has a low-pressure water channel communicated with a water inlet connector assembly 4, the high-pressure body 2 is detachably mounted on the pump body 1, the high-pressure body 2 is made of metal high-pressure resistant material, which has a high-pressure water channel communicated with a water outlet connector assembly 5, and the low-pressure body 3 is detachably mounted on the high-pressure body 2, and the low-pressure water channel is communicated with the high-pressure water channel.

[0028] In the embodiment, the high-pressure body 2 and the low-pressure body 3 are designed to be separated, and the materials are selected accordingly: the high-pressure water channel still adopts high-pressure resistant metal to ensure the pressure bearing capacity, and the low-pressure water channel adopts plastic material to reduce the cost, simplify the process and improve the design flexibility, so as to solve the problems of material waste, complex processing and excessive weight of the traditional pump head.

[0029] More preferably, the plastic can be PP, nylon, POM or the like.

[0030] Further, as a preferred embodiment, the high-pressure body 2 is made of die-cast aluminum or copper alloy.

[0031] Further, as a preferred embodiment, the high-pressure body 2 is connected to the pump body 1 by the fixing bolt 7, facilitating the disassembly and assembly of the pump head and the pump body 1.

[0032] Further, as a preferred embodiment, at least two fixing bolts 7 are provided to improve the stability of the connection between the high-pressure body 2 and the pump body 1. The fixing bolts 7 can be three, four, or more, and are distributed at equal intervals in the circumferential direction.

[0033] Further, as a preferred embodiment, the low-pressure body 3 is connected to the high-pressure body 2 by the connecting bolt 8, facilitating the disassembly and assembly of the low-pressure body 3 and the high-pressure body 2.

[0034] Further, as a preferred embodiment, the high-pressure body 2 has a high-pressure water outlet joint communicating with the high-pressure water path, and the water outlet joint assembly 5 is connected to the high-pressure water outlet joint.

[0035] Further, as a preferred embodiment, the high-pressure body 2 further has a switching water path 21, and the water inlet joint assembly 4 communicates with the low-pressure water path through the switching water path 21.

[0036] Further, as a preferred embodiment, the low-pressure body 3 has a low-pressure water inlet joint 31 communicating with the low-pressure water path, one open end of the switching water path 21 is connected to the water inlet joint assembly 4, and the other open end is connected to the low-pressure water inlet joint 31. More preferably, a connecting pin 10 is used to pin the low-pressure water inlet joint 31 to the other open end of the switching water path 21.

[0037] Further, as a preferred embodiment, the low-pressure body 3 further has at least one low-pressure water outlet joint 32 communicating with the low-pressure water path, and the high-pressure body 2 has at least one high-pressure water inlet joint 22 communicating with the high-pressure water path. The low-pressure water outlet joint 32 communicates with the high-pressure water inlet joint 22. Specifically, the low-pressure water outlet joint 32 is inserted into the high-pressure water inlet joint 22 to communicate.

[0038] Further, as a preferred embodiment, the low-pressure body 3 further has a plurality of process holes communicating with the low-pressure water path. Each process hole is detachably plugged by a plug 9. The plastic low-pressure body 3 is usually produced by injection molding process. The process holes can be used as gates (melt plastic injection points) or vents. The design of the gates directly affects the efficiency and quality of the injection molding. The vents are used to exhaust air in the mold to avoid defects such as bubbles and insufficient filling. At the same time, through the design of the process holes, the complexity of the mold can be reduced (such as avoiding side core-pulling structure), the manufacturing cost is reduced, and the precision and consistency of the injection molding are improved.

[0039] In one embodiment, the process hole and the plug 9, the water outlet joint assembly 5 and the high pressure water outlet joint, the water inlet joint assembly 4 and the open end of the adapter waterway 21 can be connected by screwing or a connecting pin 10.

[0040] More preferably, the connecting pin 10 in the embodiment can be a U-shaped pin.

[0041] The utility model discloses still have the following implementation mode on the above basis:

[0042] In the further embodiment of the utility model, a microswitch assembly 6 is also installed on the high pressure main body 2.

[0043] The above only for the preferred embodiment of the utility model, and not therefore limit the implementation and protection scope of the utility model, for those skilled in the art, should be able to realize that the equivalent replacement and obvious change of the utility model specification and drawing content, the scheme obtained by using, all should be contained in the protection scope of the utility model.

Claims

1. A split pump head for connection to a pump body, characterised in that, The utility model relates to a pump body and a high-pressure body detachably connected to the pump body, wherein the pump body is made of plastic and has a low-pressure water channel in communication with a water inlet joint assembly; the high-pressure body is made of metal high-pressure resistant material and has a high-pressure water channel in communication with a water outlet joint assembly; the low-pressure body is detachably mounted on the high-pressure body and makes the low-pressure water channel in communication with the high-pressure water channel. The high-pressure body is made of die-casting aluminum or copper alloy material. The high-pressure body is connected to the pump body by fixing bolts.

2. The split pump head of claim 1, wherein, The fixing bolts are provided in at least two.

3. The split pump head of claim 1, wherein, The low-pressure body is connected to the high-pressure body by connecting bolts.

4. The split pump head of claim 3, wherein, The high-pressure body has a high-pressure water outlet joint in communication with the high-pressure water channel, and the water outlet joint assembly is connected to the high-pressure water outlet joint.

5. The split pump head of claim 1, wherein, The high-pressure body further has an adapter water channel, and the water inlet joint assembly is in communication with the low-pressure water channel through the adapter water channel.

6. The split pump head of claim 1, wherein, The low-pressure body has a low-pressure water inlet joint in communication with the low-pressure water channel, and an open end of the adapter water channel is connected to the water inlet joint assembly and the other open end is connected to the low-pressure water inlet joint.

7. The split pump head of claim 1, wherein, The low-pressure body further has at least one low-pressure water outlet joint in communication with the low-pressure water channel, and the high-pressure body has at least one high-pressure water inlet joint in communication with the high-pressure water channel, and the low-pressure water outlet joint is in communication with the high-pressure water inlet joint.

8. The split pump head of claim 7, wherein, The low-pressure body further has a plurality of process holes in communication with the low-pressure water channel, and each process hole is detachably plugged by a plug.

9. The split pump head of claim 8, wherein, ​ 10. The split pump head of any of claims 1-9, wherein, ​

Images