Diaphragm pump structure
By using an integrated diaphragm pump and valve support design, combined with a soft, perforated sealing connection, the problems of inconvenient manufacturing and assembly and insufficient outlet pressure in diaphragm pumps are solved, improving the outlet effect and connection tightness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-06
AI Technical Summary
The separate diaphragm design in existing diaphragm pumps leads to inconvenience in manufacturing and assembly, insufficient outlet pressure, and poor one-way outlet valve structure.
The system uses several diaphragm extraction components integrally molded, and through the design of the valve bracket and water guide cover assembly, including the series structure of water inlet, circumferential connecting groove, middle water outlet channel and one-way valve, and uses soft hollow parts for sealing connection to improve water output effect.
It enables convenient manufacturing and assembly of diaphragms, improves water pressure and effect, and ensures tightness and reliability of connections.
Smart Images

Figure CN223975224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a diaphragm pump structure. Background Technology
[0002] A diaphragm pump is a positive displacement pump that uses a flexible diaphragm to transport liquids. When the diaphragm moves toward the drive mechanism, a negative pressure is created in the pump cylinder, drawing in liquid. When the diaphragm moves to the other side, it discharges liquid. This process is continuously repeated, thus achieving continuous liquid transport.
[0003] Some existing diaphragm pumps use multiple diaphragms to pump water sequentially to improve efficiency. However, these diaphragms are separate units, each relatively small, which makes them inconvenient to manufacture and assemble. It is necessary to address this issue. Furthermore, each diaphragm's outlet channel corresponds to only one one-way outlet valve, which is not conducive to reducing outlet pressure and improving water output. It is also necessary to address this issue. Utility Model Content
[0004] This invention overcomes the shortcomings of the above-mentioned technologies and provides a diaphragm pump structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A diaphragm pump structure includes a motor mechanism 1, a plurality of diaphragm pumping components 2 arranged circumferentially for sequential pumping and discharging actions driven by the motor mechanism 1, a valve support 3 located at the upper end of the plurality of diaphragm pumping components 2, and a water guide cover assembly located at the upper end of the valve support 3. The water guide cover assembly includes a water inlet 4, which has a water inlet nozzle 41 located on its outer side wall, a circumferentially communicating groove 42 with its opening facing downward and communicating with the water inlet nozzle 41, and an intermediate water outlet channel 43 that communicates vertically and is spaced apart from the circumferentially communicating groove 42. A second one-way water outlet valve 5 and a water outlet nozzle 6 are installed at the end of the intermediate water outlet channel 43. Each diaphragm pumping component 2 has a diaphragm with its opening facing upward. The diaphragm extraction chamber 21 is integrally formed with several diaphragm extraction components 2. The valve support 3 is provided with several first communication channels 31 corresponding to the positions of the diaphragm extraction components 2 for communicating between the circumferential communication groove 42 and the diaphragm extraction chamber 21, and several second communication channels 32 corresponding to the positions of the diaphragm extraction components 2 for communicating between the corresponding diaphragm extraction chamber 21 and the intermediate water outlet channel 43. The valve support 3 is equipped with a first one-way inlet valve 7 for controlling whether the circumferential communication groove 42 is connected to the corresponding diaphragm extraction chamber 21 below, and a first one-way outlet valve 8 for controlling whether the corresponding diaphragm extraction chamber 21 is connected to the intermediate water outlet channel 43.
[0007] Preferably, there are 2, 3, or 4 membrane extraction components 2.
[0008] Preferably, the motor mechanism 1 includes a motor 11 and a power output component 12 driven by the motor 11 to rotate. The power output component 12 is eccentrically connected to a rocking component 13 for driving the plurality of diaphragm extraction components 2 to perform extraction actions in sequence when the power output component 12 rotates.
[0009] Preferably, the valve bracket 3 includes a bracket body 301 and a hollow part 302 tightly disposed between the bracket body 301 and the water inlet 4 to separate the circumferential connecting groove 42 and the intermediate water outlet channel 43. The hollow part 302 is made of soft material. The hollow part 302 and the valve bracket 3 are provided with a first connecting channel 31 and a second connecting channel 32. The bracket body 301 is equipped with a first one-way water inlet valve 7 and a first one-way water outlet valve 8.
[0010] Preferably, the hollowed-out part 302 is made of rubber material.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. The structure of this case is simple and easy to implement. The second one-way water outlet valve is set to resist the external pressure. It forms a series structure with each of the first one-way water outlet valves inside, which is conducive to improving the one-way water outlet effect. In addition, the integral molding of the several diaphragm pumping parts is conducive to forming a larger size than a single diaphragm pumping part, which is convenient for manufacturing and assembly and has good practicality.
[0013] 2. The hollowed-out part described in this case is made of soft material and is used to be tightly set between the main body of the support and the water inlet, which plays a role in sealing the connection. This helps to ensure the tight connection between the circumferential connecting groove and the first connecting channel and the tight connection between the second connecting channel and the intermediate water outlet channel, and has good practicality. Attached Figure Description
[0014] Figure 1 This is one of the structural diagrams in this case.
[0015] Figure 2 This is the second structural diagram of this case.
[0016] Figure 3 This is the third structural diagram in this case.
[0017] Figure 4 This is the fourth structural diagram in this case.
[0018] Figure 5 This is the fifth structural diagram in this case.
[0019] Figure 6 This is the sixth structural diagram in this case.
[0020] Figure 7 This is the seventh structural diagram in this case.
[0021] Figure 8 This is the eighth structural diagram of this case. Detailed Implementation
[0022] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art:
[0023] like Figures 1 to 8 As shown, a diaphragm pump structure includes a motor mechanism 1, a plurality of diaphragm pumping components 2 arranged circumferentially for sequential pumping and discharging actions driven by the motor mechanism 1, a valve support 3 located at the upper end of the plurality of diaphragm pumping components 2, and a water guide cover assembly located at the upper end of the valve support 3. The water guide cover assembly includes a water inlet 4, which has a water inlet nozzle 41 located on its outer side wall, a circumferentially communicating groove 42 with its opening facing downward and communicating with the water inlet nozzle 41, and an intermediate water outlet channel 43 that communicates vertically and is separated from the circumferentially communicating groove 42. A second one-way water outlet valve 5 and a water outlet nozzle 6 are installed at the end of the intermediate water outlet channel 43. Each diaphragm pumping component 2 has an opening facing upward. The diaphragm extraction chamber 21 is integrally formed with several diaphragm extraction components 2. The valve support 3 is provided with several first communication channels 31 corresponding to the positions of the diaphragm extraction components 2 for communicating between the circumferential communication groove 42 and the diaphragm extraction chamber 21, and several second communication channels 32 corresponding to the positions of the diaphragm extraction components 2 for communicating between the corresponding diaphragm extraction chamber 21 and the intermediate water outlet channel 43. The valve support 3 is equipped with a first one-way inlet valve 7 for controlling whether the circumferential communication groove 42 is connected to the corresponding diaphragm extraction chamber 21 below, and a first one-way outlet valve 8 for controlling whether the corresponding diaphragm extraction chamber 21 is connected to the intermediate water outlet channel 43.
[0024] As described above, the structure of this case is simple and easy to implement. The second one-way water outlet valve 5 is set to resist the external pressure. It forms a series structure with each of the first one-way water outlet valves 8 inside, which is conducive to improving the one-way water outlet effect. In addition, the integral molding of the plurality of diaphragm pumping parts 2 is conducive to forming a larger size than a single diaphragm pumping part 2, which is convenient for manufacturing and assembly and has good practicality.
[0025] As described above, in specific implementations, the diaphragm extraction component 2 can be 2, 3, or 4, such as... Figure 2 Three are shown.
[0026] like Figure 2As shown, in a specific implementation, the motor mechanism 1 includes a motor 11 and a power output component 12 driven by the motor 11 to rotate. The power output component 12 is eccentrically connected to a rocking component 13 for driving the plurality of diaphragm extraction components 2 to perform extraction actions in sequence when the power output component 12 rotates, which is convenient to implement.
[0027] like Figures 5 to 7 As shown, in a specific implementation, the valve bracket 3 includes a bracket body 301 and a hollow part 302 tightly disposed between the bracket body 301 and the water inlet 4 to separate the circumferential connecting groove 42 and the intermediate water outlet channel 43. The hollow part 302 is made of soft material. The hollow part 302 and the valve bracket 3 are provided with a first connecting channel 31 and a second connecting channel 32. The bracket body 301 is equipped with a first one-way water inlet valve 7 and a first one-way water outlet valve 8.
[0028] As described above, the hollowed-out part 302 described in this case is made of soft material and is used to be tightly set between the support body 301 and the water inlet part 4, which plays a role in sealing the connection. This helps to ensure the tight connection between the circumferential connecting groove 42 and the first connecting channel 31 and the tight connection between the second connecting channel 32 and the intermediate water outlet channel 43, and has good practicality.
[0029] As mentioned above, in specific implementation, the hollow part 302 is made of rubber material, which is convenient to implement.
[0030] As stated above, this case protects a diaphragm pump structure, and all technical solutions that are the same as or similar to the structure in this case should be considered to fall within the scope of protection of this case.
Claims
1. A diaphragm pump structure, characterized by The utility model discloses a motor mechanism (1) is included, the periphery of a plurality of membrane piece pumping parts (2) for being driven by the motor mechanism (1) is arranged and is used for sequentially pumping action, the valve support (3) of the plurality of membrane piece pumping parts (2) upper end, and the water guide cover assembly of valve support (3) upper end, the water guide cover assembly includes the water inlet part (4), the water inlet part (4) is equipped with the water inlet nozzle (41) on the outside wall, be equipped with the periphery of the communication groove (42) of opening downward and with water inlet nozzle (41) is communicated, be equipped with the intermediate water outlet channel (43) of up and down communication and with the periphery of the communication groove (42) is separated, the end of intermediate water outlet channel (43) is installed second one-way water valve (5) and water outlet nozzle (6), every membrane piece pumping part (2) is equipped with the membrane piece pumping cavity (21) of opening upward, the plurality of membrane piece pumping parts (2) is integrally formed, the valve support (3) is equipped with a plurality of with the membrane piece pumping part (2) position corresponds for the first communication channel (31) for the periphery of the communication groove (42) and the membrane piece pumping cavity (21) is communicated, be equipped with a plurality of with the membrane piece pumping part (2) position corresponds for the second communication channel (32) for corresponding the membrane piece pumping cavity (21) and the intermediate water outlet channel (43) are communicated, the valve support (3) is installed for controlling the periphery of the communication groove (42) whether with below corresponding the membrane piece pumping cavity (21) is communicated first one-way water inlet valve (7), is installed for controlling corresponding the membrane piece pumping cavity (21) whether with the intermediate water outlet channel (43) is communicated first one-way water valve (8).
2. A membrane pump structure according to claim 1, characterized in that The membrane piece pumping part (2) is 2 or 3 or 4.
3. A membrane pump structure according to claim 1, characterized in that The motor mechanism (1) includes a motor (11), a power output member (12) driven by the motor (11) to rotate, and a rocking member (13) eccentrically connected to the power output member (12) for driving the plurality of membrane piece pumping parts (2) to sequentially perform pumping action when the power output member (12) rotates.
4. A membrane pump structure according to any one of claims 1-3, characterized in that The valve support (3) includes a support body (301), a hollow member (302) closely arranged between the support body (301) and the water inlet part (4) for separating the periphery of the communication groove (42) and the intermediate water outlet channel (43), the hollow member (302) is made of soft material, the first communication channel (31) and the second communication channel (32) are arranged between the hollow member (302) and the valve support (3), and the first one-way water inlet valve (7) and the first one-way water outlet valve (8) are installed on the support body (301).
5. A membrane pump structure according to claim 4, characterised in that The hollow member (302) is made of rubber material.