Connecting structure of pump head cover and diaphragm pump with connecting structure

Abstract

The utility model discloses a connecting structure of a pump head cover and a diaphragm pump with the connecting structure, the connecting structure of the pump head cover is used for the diaphragm pump, the diaphragm pump comprises an air inlet assembly and an air outlet assembly, the connecting structure of the pump head cover comprises at least one first pump cover head assembly and at least one second pump cover head assembly, each first pump cover head assembly comprises a plurality of first pump covers arranged at intervals in the first direction, each first pump cover is provided with a first air inlet hole and a first air outlet hole, and the first air inlet holes of the first pump covers of each first pump cover head assembly are connected in parallel and then used for being connected with the air inlet assembly. The first air outlet holes of the first pump covers of at least one first pump cover head assembly are connected in parallel; the second pump cover head assembly comprises a plurality of second pump covers arranged at intervals in the first direction, and each second pump cover is provided with a second air inlet hole and a second air outlet hole.

Description

Technical Field

[0001] This utility model relates to the technical field of diaphragm pumps, specifically to a connection structure for a pump head cover and a diaphragm pump having the same. Background Technology

[0002] A diaphragm pump is a transfer pump that uses the movement of a diaphragm to transport liquid or gaseous media. A working chamber is formed between the diaphragm and the pump cover. The reciprocating movement of the diaphragm changes the volume of the working chamber, thereby drawing in and expelling liquid or gas. Each diaphragm has an outlet and an inlet; the outlet connects to an outlet pipe, and the inlet connects to an inlet pipe, thus achieving the inhalation and exhalation of gas at the diaphragm.

[0003] In existing technologies, the pump head cover of diaphragm pumps has a single connection, which makes it impossible to achieve power grading. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a pump head cover connection structure and a diaphragm pump having the same structure, which aims to solve the problem that the pump head cover connection of the existing diaphragm pump is single and cannot achieve power grading.

[0005] To achieve the above objectives, this utility model proposes a pump head cover connection structure for a diaphragm pump, the diaphragm pump including an inlet assembly and an outlet assembly, and the pump head cover connection structure comprising:

[0006] At least one first pump cover assembly, each first pump cover assembly includes a plurality of first pump covers arranged at intervals along a first direction, each first pump cover is provided with a first air inlet and a first air outlet, the first air inlets of the plurality of first pump covers of each first pump cover assembly are connected in parallel and used to connect to the air inlet assembly, and the first air outlets of the plurality of first pump covers of at least one first pump cover assembly are connected in parallel.

[0007] The second pump cover assembly includes a plurality of second pump covers arranged at intervals along a first direction. Each second pump cover is provided with a second air inlet and a second air outlet. The second air inlet and the second air outlet of the plurality of second pump covers are connected in series or in parallel and then connected in series with the first air outlet of the plurality of first pump covers, and are used to connect to the air outlet assembly.

[0008] Preferably, in the connection structure of the pump head cover, the second air inlet and the second air outlet of each second pump cover are connected in series to form a first branch, and the first branches of multiple second pump covers are connected in series and then connected in series with the first air outlets of the multiple first pump covers.

[0009] Preferably, in the connection structure of the pump head cover, the number of second pump covers in the second pump head assembly is two;

[0010] In this system, the first air outlets of multiple first pump covers of at least one first pump cover assembly are connected in parallel to form a first-stage pipeline, the second air inlet and the second air outlet of one second pump cover are connected in series to form a second-stage pipeline, and the second air inlet and the second air outlet of another second pump cover are connected in series to form a third-stage pipeline.

[0011] Preferably, in the connection structure of the pump head cover, the second air inlet and the second air outlet of the plurality of second pump covers are connected in parallel to form a second branch, and the second branch is connected in series with the first air outlet of the plurality of first pump covers.

[0012] Preferably, in the connection structure of the pump head cover, the number of second pump covers in the second pump head assembly is two;

[0013] In this system, the first air outlets of multiple first pump covers of at least one first pump cover assembly are connected in parallel to form a first-stage pipeline, and the second branch forms a second-stage pipeline.

[0014] Preferably, in the connection structure of the pump head cover, there are three first pump head cover assemblies, including a first assembly, a second assembly, and a third assembly, wherein the first air inlets of multiple first pump covers in the first assembly are connected in parallel and used to connect with the air inlet assembly.

[0015] The first air inlets of multiple first pump covers in the second component are connected in parallel to be connected to the air inlet assembly.

[0016] The first air inlets of the multiple first pump covers in the third component are connected in parallel and used to connect with the air inlet assembly.

[0017] Preferably, in the connection structure of the pump head cover, the first air outlets of multiple first pump covers in the first component are connected in parallel to form a first branch pipeline;

[0018] In the second component, the first air outlets of multiple first pump covers are connected in parallel to form a second branch pipeline;

[0019] In the third component, the first air outlets of multiple first pump covers are connected in parallel to form a third branch pipeline;

[0020] The first branch pipeline, the second branch pipeline, and the third branch pipeline are connected in parallel to form the first-level pipeline.

[0021] Preferably, in the connection structure of the pump head cover, the first component includes two first pump covers, the second component includes two first pump covers, and the third component includes two first pump covers.

[0022] To achieve the above objectives, this utility model also provides a diaphragm pump with a pump head cover connection structure, wherein the connection structure with the pump head cover is the connection structure with the pump head cover described above.

[0023] Preferably, in the diaphragm pump, the diaphragm pump includes an inlet assembly and an outlet assembly;

[0024] The number of air inlets in the air inlet assembly matches the number of the first pump cover assembly.

[0025] This utility model has at least the following beneficial effects:

[0026] This invention connects the first air outlets of multiple first pump covers of at least one first pump cover assembly in parallel, and connects them in series with multiple second pump covers of the second pump cover assembly located at the last stage. The second air inlet and the second air outlet of the second pump cover assembly are connected in series or in parallel, thereby adjusting the multi-stage connection mode of the pump head cover of the diaphragm pump to achieve power grading. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of an embodiment of the connection structure of the pump head cover provided by this utility model;

[0029] Figure 2 A schematic diagram of yet another embodiment of the connection structure of the pump head cover provided by this utility model;

[0030] Figure 3 This is a schematic diagram of an embodiment of the diaphragm pump provided by this utility model.

[0031] Explanation of icon numbers:

[0032] 100 - Connection structure of pump head cover, 1 - First pump head cover assembly, 11 - First pump cover, 111 - First air inlet, 112 - First air outlet, 121 - First assembly, 122 - Second assembly, 123 - Third assembly, 2 - Second pump head cover assembly, 21 - Second pump cover, 211 - Second air inlet, 212 - Second air outlet, 31 - First stage pipeline, 311 - First branch pipeline, 312 - Second branch pipeline, 313 - Third branch pipeline, 32 - Second stage pipeline, 33 - Third stage pipeline, 200 - Diaphragm pump, 210 - Air inlet assembly, 220 - Air outlet assembly.

[0033] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] Please see Figures 1 to 3This utility model provides a pump head cover connection structure 100 for a diaphragm pump 200. The diaphragm pump 200 includes an air inlet assembly 210 and an air outlet assembly 220. The pump head cover connection structure 100 includes at least one first pump head cover assembly 1 and a second pump head cover assembly 2. Each first pump head cover assembly 1 includes a plurality of first pump covers 11 arranged at intervals along a first direction. Each first pump cover 11 is provided with a first air inlet hole 111 and a first air outlet hole 112. The first air inlets 111 of the plurality of first pump covers 11 of each first pump head cover assembly 1 are connected in parallel. After being connected to the air inlet assembly 210, the first air outlet holes 112 of the plurality of first pump covers 11 of at least one first pump cover assembly 1 are connected in parallel; the second pump cover assembly 2 includes a plurality of second pump covers 21 arranged at intervals along a first direction, each second pump cover 21 having a second air inlet hole 211 and a second air outlet hole 212, the second air inlet holes 211 and the second air outlet holes 212 of the plurality of second pump covers 21 are connected in series or in parallel and then connected in series with the first air outlet holes 112 of the plurality of first pump covers 11, and are used to connect to the air outlet assembly 220.

[0038] This utility model achieves the adjustment of the multi-stage connection mode of the pump head cover of the diaphragm pump 200 by connecting the first air outlet 112 of the multiple first pump cover 11 of at least one first pump head assembly 1 in parallel, and connecting them in series with the multiple second pump cover 21 of the second pump head assembly 2 located at the last stage. The second air inlet 211 and the second air outlet 212 of the second pump head assembly 2 are connected in series or in parallel, thereby achieving the adjustment of the multi-stage connection mode of the pump head cover of the diaphragm pump 200.

[0039] Specifically, please refer to Figure 2 In one connection method of the diaphragm pump 200, the second air inlet 211 and the second air outlet 212 of each second pump cover 21 are connected in series to form a first branch. The first branches of multiple second pump covers 21 are connected in series and then connected in series with the first air outlet 112 of the multiple first pump covers 11.

[0040] When there are two second pump covers 21, the diaphragm pump 200 is connected in a three-stage configuration. At least one first pump cover assembly 1 has multiple first pump covers 11 whose first air outlets 112 are connected in parallel to form a first-stage pipeline 31. One second pump cover 21 has its second air inlet 211 and second air outlet 212 connected in series to form a second-stage pipeline 32. Another second pump cover 21 has its second air inlet 211 and second air outlet 212 connected in series to form a third-stage pipeline 33. Of course, when there are three, four, ..., or even more second pump covers 21, four-stage, five-stage, ..., pipelines can be formed.

[0041] Please see Figure 1In another connection configuration of the diaphragm pump 200, the second air inlets 211 and second air outlets 212 of the plurality of second pump covers 21 are connected in parallel to form a second branch, which is connected in series with the first air outlets 112 of the plurality of first pump covers 11. The first air outlets 112 of at least one first pump cover assembly 1 are connected in parallel to form a first-stage pipeline 31, and the second branch forms a second-stage pipeline 32. The number of second pump covers 21 can be set according to specific requirements.

[0042] The number of first pump cover assemblies 1 can also be set according to specific needs, for example, it can be one, two, three, etc. For ease of explanation, the following description takes three first pump cover assemblies 1 as an example. The three first pump cover assemblies 1 respectively include a first assembly 121, a second assembly 122, and a third assembly 123. Specifically, the first air inlets 111 of multiple first pump covers 11 in the first assembly 121 are connected in parallel to the air inlet assembly 210; the first air inlets 111 of multiple first pump covers 11 in the second assembly 122 are connected in parallel to the air inlet assembly 210; the first air inlets 111 of multiple first pump covers 11 in the third assembly 123 are connected in parallel to the air inlet assembly 210.

[0043] More specifically, in the first component 121, the first air outlets 112 of multiple first pump covers 11 are connected in parallel to form a first branch pipe 311; in the second component 122, the first air outlets 112 of multiple first pump covers 11 are connected in parallel to form a second branch pipe 312; in the third component 123, the first air outlets 112 of multiple first pump covers 11 are connected in parallel to form a third branch pipe 313; wherein the first branch pipe 311, the second branch pipe 312, and the third branch pipe 313 are connected in parallel to form a first-stage pipe 31. Taking the first component 121, the second component 122, and the third component 123 as examples, the first air outlets 112 of the two first pump covers 11 in the first component 121 are connected in parallel, the first air outlets 112 of the two first pump covers 11 in the second component 122 are connected in parallel, and the first air outlets 112 of the two first pump covers 11 in the third component 123 are connected in parallel.

[0044] This utility model also provides a diaphragm pump 200 with a connection structure 100 having a pump head cover; please refer to [link / reference]. Figure 3The connection structure 100 with a pump head cover is the connection structure 100 with a pump head cover described above. It should be noted that the embodiment of the diaphragm pump 200 with the connection structure 100 with a pump head cover provided in this embodiment includes the embodiment with the connection structure 100 with a pump head cover described above, and the beneficial effects of the connection structure 100 with a pump head cover can also be applied to the diaphragm pump 200 with the connection structure 100 with a pump head cover.

[0045] More specifically, the diaphragm pump 200 includes an air inlet assembly 210 and an air outlet assembly 220; wherein the number of air inlets in the air inlet assembly 210 matches the number of first pump cover assemblies 1.

[0046] Taking an example where there are three first pump cover assemblies 1 and the air inlet assembly 210 includes a first air inlet, a second air inlet, and a third air inlet, the three first pump cover assemblies 1 respectively include a first assembly 121, a second assembly 122, and a third assembly 123. In the first assembly 121, the first air inlets 111 of multiple first pump covers 11 are connected in parallel to the first air inlet; in the second assembly 122, the first air inlets 111 of multiple first pump covers 11 are connected in parallel to the second air inlet; and in the third assembly 123, the first air inlets 111 of multiple first pump covers 11 are connected in parallel to the third air inlet.

[0047] More specifically, the first, second, and third air inlets are arranged at intervals along the axial direction, which makes the pipeline layout more orderly and avoids problems such as tangling.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A connection structure of a pump head cover for a diaphragm pump including an air inlet port assembly and an air outlet port assembly, characterized by, The application relates to a connecting structure of a diaphragm pump head cover. The connecting structure comprises at least one first pump head cover assembly, each first pump head cover assembly comprising a plurality of first pump covers arranged at intervals along a first direction, each first pump cover being provided with a first air inlet hole and a first air outlet hole, the first air inlet holes of the plurality of first pump covers of each first pump head cover assembly being connected in parallel and used for being connected with the air inlet assembly, and the first air outlet holes of the plurality of first pump covers of at least one first pump head cover assembly being connected in parallel. The connecting structure further comprises a second pump head cover assembly comprising a plurality of second pump covers arranged at intervals along the first direction, each second pump cover being provided with a second air inlet hole and a second air outlet hole, the second air inlet holes and the second air outlet holes of the plurality of second pump covers being connected in series or in parallel and then connected in series with the first air outlet holes of the plurality of first pump covers, and the second air inlet holes and the second air outlet holes being used for being connected with the air outlet assembly.

2. The pump head cover connecting structure according to claim 1, wherein The second air inlet hole and the second air outlet hole of each second pump cover are connected in series to form a first branch, and the first branch of the plurality of second pump covers is connected in series with the first air outlet holes of the plurality of first pump covers.

3. The pump head cover attachment structure of claim 2, wherein The number of second pump covers in the second pump head cover assembly is two. The first air outlet holes of the plurality of first pump covers of at least one first pump head cover assembly are connected in parallel to form a first-stage pipeline, the second air inlet hole and the second air outlet hole of one second pump cover are connected in series to form a second-stage pipeline, and the second air inlet hole and the second air outlet hole of another second pump cover are connected in series to form a third-stage pipeline.

4. The pump head cover attachment structure of claim 1, wherein The second air inlet holes and the second air outlet holes of the plurality of second pump covers are connected in parallel to form a second branch, and the second branch is connected in series with the first air outlet holes of the plurality of first pump covers.

5. The pump head cover attachment structure of claim 4, wherein The number of second pump covers in the second pump head cover assembly is two. The first air outlet holes of the plurality of first pump covers of at least one first pump head cover assembly are connected in parallel to form a first-stage pipeline, and the second branch forms a second-stage pipeline.

6. The pump head cover attachment structure of claim 1, wherein The number of first pump head cover assemblies is three, and the first pump head cover assemblies comprise a first assembly, a second assembly and a third assembly respectively, the first air inlet holes of the plurality of first pump covers in the first assembly are connected in parallel and used for being connected with the air inlet assembly; the first air inlet holes of the plurality of first pump covers in the second assembly are connected in parallel and used for being connected with the air inlet assembly; the first air inlet holes of the plurality of first pump covers in the third assembly are connected in parallel and used for being connected with the air inlet assembly.

7. The pump head cover attachment structure of claim 6, wherein The first air outlet holes of the plurality of first pump covers in the first assembly are connected in parallel to form a first branch pipeline; the first air outlet holes of the plurality of first pump covers in the second assembly are connected in parallel to form a second branch pipeline; the first air outlet holes of the plurality of first pump covers in the third assembly are connected in parallel to form a third branch pipeline; the first branch pipeline, the second branch pipeline and the third branch pipeline are connected in parallel to form a first-stage pipeline.

8. The pump head cover attachment structure of claim 7, wherein The first assembly comprises two first pump covers, the second assembly comprises two first pump covers, and the third assembly comprises two first pump covers.

9. A diaphragm pump having a connection structure of a pump head cover, characterized by The diaphragm pump comprises an air inlet assembly and an air outlet assembly.

10. The membrane pump of claim 9, wherein, The number of air inlets in the air inlet assembly matches the number of first pump head cover assemblies. ​

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