Mounting structure and micro water pump

Abstract

The application relates to the technical field of water pumps, and provides an installation structure, which comprises a mounting shell, an inlet-outlet water nozzle, a piston fixing base and a piston leather cup. The mounting shell comprises a base and an upper cover, the base is detachably connected with the upper cover, a limiting installation groove is formed between the base and one end of the upper cover, the piston fixing base is arranged in the limiting installation groove, the inlet-outlet water nozzle is clamped at one end of the piston fixing base and abuts against one end of the limiting installation groove, and the piston leather cup is clamped at the other end of the piston fixing base and abuts against the other end of the limiting installation groove. Therefore, the assembly of the piston leather cup can be facilitated. In addition, a micro water pump is also provided.

Description

Technical Field

[0001] This application relates to the field of water pumps, and more particularly to an installation structure and a miniature water pump. Background Technology

[0002] A miniature water pump is a small water pump with self-priming capability. It achieves liquid transportation through negative pressure. Its core parameters include suction head, flow rate, and discharge head.

[0003] In related technologies, a micro water pump includes a mounting housing, inlet and outlet nozzles, a piston mounting base, a piston cup, a connecting rod, and a drive assembly. The inlet and outlet nozzles, the piston mounting base, and the piston cup are connected and sequentially installed at one end of the mounting housing. The connecting rod is connected to the piston cup. The drive assembly is installed at the other end of the mounting housing and drives the connecting rod to move back and forth to compress the piston cup, thereby realizing the water inlet and outlet nozzles.

[0004] However, in practical applications, the piston cup needs to be fixedly connected to the mounting shell by a metal retaining ring, which makes the assembly process more complicated and therefore requires improvement. Utility Model Content

[0005] To facilitate the assembly of the piston cup, this application provides an installation structure.

[0006] The installation structure provided in this application adopts the following technical solution:

[0007] An installation structure includes an installation shell, inlet and outlet nozzles, a piston fixing seat, and a piston cup; the installation shell includes a base and a top cover, the base and the top cover are detachably connected, and a limiting installation groove is formed between one end of the base and the top cover; the piston fixing seat is disposed in the limiting installation groove, the inlet and outlet nozzles are engaged with one end of the piston fixing seat and abut against one end of the limiting installation groove, and the piston cup is engaged with the other end of the piston fixing seat and abuts against the other end of the limiting installation groove.

[0008] By adopting the above technical solution, during the installation process, the inlet and outlet nozzles and the piston cup are first snapped into the two ends of the piston fixing seat, and then the three are placed into the limiting installation groove of the base or the top cover, so that the inlet and outlet nozzles and the piston cup abut against the two ends of the limiting installation groove. After that, the base and the top cover are installed, and the piston cup can be installed. The piston cup can be assembled synchronously with the inlet and outlet nozzles and the piston fixing seat without the need for additional metal retaining rings, which facilitates the assembly of the piston cup and reduces production costs.

[0009] Preferably, the piston cup has a flange on its periphery, and the flange abuts against the end wall of the limiting mounting groove.

[0010] By adopting the above technical solution and setting a flange, the stability of the piston cup installation is improved, and a seal is achieved by pressing.

[0011] Preferably, the flange is recessed along its circumference to form a groove.

[0012] By adopting the above technical solution and setting the groove, the piston cup is cushioned during the interference fit deformation process, providing deformation space, which is conducive to installation and tightening, and achieves better sealing.

[0013] Preferably, the mounting structure further includes a sealing rubber plate, which is disposed between the inlet / outlet water nozzle and the piston cup.

[0014] By adopting the above technical solution and setting a sealing rubber plate, the sealing performance between the inlet / outlet nozzles and the piston cup is improved.

[0015] Preferably, the sealing rubber plate is snapped onto the piston fixing seat, and the inlet and outlet water nozzles abut against the sealing rubber plate.

[0016] By adopting the above technical solution, the sealing rubber plate is snapped onto the piston fixing seat, and the inlet and outlet water nozzles abut against the sealing rubber plate, so as to ensure the stability of the installation of the sealing rubber plate, thereby ensuring the sealing between the inlet and outlet water nozzles and the piston cup, and improving the installation stability between the inlet and outlet water nozzles and the piston cup.

[0017] Preferably, the mounting structure further includes a first elastic element and a water inlet valve head. The inlet and outlet nozzles are provided with water inlets, and the piston fixing seat is provided with water inlets spaced apart. The water inlets are connected to the water inlets. The first elastic element is disposed between the piston fixing seat and the water inlet valve head to drive the water inlet valve head to block the water inlet.

[0018] By adopting the above technical solution, and by setting the first elastic element and the water inlet valve head, one-way flow between the water inlet and the water inlet hole can be realized. The structure is simple and easy to install.

[0019] Preferably, the mounting structure further includes a second elastic element and a water outlet valve head. The inlet and outlet nozzles are provided with water outlets, and the piston fixing seat is provided with water outlet holes spaced apart. The water outlets are connected to the water outlet holes. The second elastic element is disposed between the inlet and outlet nozzles and the water outlet valve head to drive the water outlet valve head to block the water outlet holes.

[0020] By adopting the above technical solution, and by setting a second elastic element and a water outlet valve head, one-way flow between the water outlet and the water outlet hole can be achieved. The structure is simple and easy to install.

[0021] Secondly, this application provides a miniature water pump.

[0022] The miniature water pump provided in this application adopts the following technical solution:

[0023] A miniature water pump, comprising the mounting structure described above.

[0024] Preferably, the micro water pump further includes a connecting rod and a drive assembly. One end of the connecting rod is engaged with the end of the piston cup away from the piston fixing seat. The drive assembly is located between the base and the upper cover and is used to drive the connecting rod to reciprocate along the length direction of the base.

[0025] By adopting the above technical solution, and by setting a connecting rod and a drive assembly, the drive assembly drives the connecting rod to move back and forth, thereby compressing the piston cup and realizing the water inlet and outlet of the water nozzle.

[0026] Preferably, the drive assembly includes a drive motor, a first gear, and a second gear. The drive motor is located at the end between the base and the top cover away from the inlet / outlet water nozzle. The first gear is located on the drive motor. The second gear is eccentrically rotatably connected to the base, and the connecting rod is sleeved on the second gear. The first gear and the second gear mesh with each other.

[0027] By adopting the above technical solution, the drive motor drives the first gear to rotate, thereby driving the second gear to rotate. Due to the eccentric setting of the second gear, the connecting rod can be driven to move back and forth. The structure is structural and the operation is stable. At the same time, the overall structure of the drive assembly is compact, thereby reducing the space occupied.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. First, snap the inlet / outlet nozzles and piston cups onto the two ends of the piston mounting base. Then, place all three into the limiting mounting grooves of the base or top cover, so that the inlet / outlet nozzles and piston cups abut against the two ends of the limiting mounting grooves. After that, install the base and top cover to install the piston cups. The piston cups can be assembled synchronously with the inlet / outlet nozzles and piston mounting base without the need for additional metal retaining rings, which facilitates the assembly of the piston cups and reduces production costs.

[0030] 2. The sealing rubber plate is snapped onto the piston fixing seat, and the inlet and outlet water nozzles abut against the sealing rubber plate to ensure the stability of the sealing rubber plate installation, thereby ensuring the sealing between the inlet and outlet water nozzles and the piston cup, and improving the installation stability between the inlet and outlet water nozzles and the piston cup.

[0031] 3. Through the drive motor, the first gear and the second gear, the drive motor drives the first gear to rotate, which in turn drives the second gear to rotate. Due to the eccentric setting of the second gear, the connecting rod can be driven to move back and forth. The structure is structural and the operation is stable. At the same time, the overall structure of the drive assembly is compact, so as to reduce the space occupied. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the micro water pump in the embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the exploded structure of the miniature water pump in the embodiments of this application;

[0034] Figure 3 This is a schematic cross-sectional view of the micro water pump in the embodiments of this application.

[0035] Reference numerals: 1. Mounting structure; 11. Mounting shell; 111. Base; 112. Top cover; 113. Limiting mounting groove; 12. Inlet and outlet nozzles; 121. Inlet; 122. Outlet; 13. Piston fixing seat; 131. Inlet hole; 132. Outlet hole; 14. Piston cup; 141. Flange; 142. Groove; 15. Sealing rubber plate; 16. First elastic element; 17. Inlet valve head; 18. Second elastic element; 19. Outlet valve head; 2. Connecting rod; 3. Drive assembly; 31. Drive motor; 32. First gear; 33. Second gear. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0037] This application discloses a miniature water pump.

[0038] Reference Figure 1 and Figure 2 The miniature water pump includes a mounting structure 1. Specifically, the mounting structure 1 includes a mounting shell 11, inlet and outlet nozzles 12, a piston fixing seat 13, and a piston cup 14. The mounting shell 11 includes a base 111 and a top cover 112, which are detachably connected. In this embodiment, the base 111 and the top cover 112 are fixed together by multiple bolts. In other embodiments, they can also be connected by plugging, snapping, or other methods, which are not limited in this application. A limiting mounting groove 113 is formed between one end of the base 111 and the top cover 112.

[0039] Reference Figure 2 and Figure 3The piston retainer 13 is placed in the limiting mounting groove 113. One end of the inlet / outlet nozzle 12 is engaged with one end of the piston retainer 13, and the other end of the inlet / outlet nozzle 12 extends out of the base 111 and the top cover 112, and the inlet / outlet nozzle 12 abuts against one end of the limiting mounting groove 113. The piston cup 14 is engaged with the other end of the piston retainer 13 and abuts against the other end of the limiting mounting groove 113.

[0040] In practical applications, the inlet / outlet nozzle 12 and the piston cup 14 are first snapped onto both ends of the piston mounting base 13. Then, the three are placed into the limiting mounting groove 113 of the base 111 or the top cover 112, so that the inlet / outlet nozzle 12 and the piston cup 14 abut against both ends of the limiting mounting groove 113. After that, the base 111 and the top cover 112 are installed, and the piston cup 14 can be installed. The piston cup 14 can be assembled synchronously with the inlet / outlet nozzle 12 and the piston mounting base 13 without the need for additional metal retaining rings, which facilitates the assembly of the piston cup 14 and reduces production costs.

[0041] In some embodiments, a flange 141 protrudes from the periphery of the piston cup 14, and the flange 141 abuts against the end wall of the limiting mounting groove 113 to improve the stability of the piston cup 14 during installation and to achieve a seal by compression. At the same time, a groove 142 is formed by the flange 141 along its own circumference, which buffers the deformation caused by interference compression during the installation of the piston cup 14, provides deformation space, facilitates installation and compression, and achieves a better seal.

[0042] In some embodiments, the inlet / outlet nozzle 12 has an inlet 121 and an outlet 122. The piston mounting seat 13 has an inlet hole 131 and an outlet hole 132 spaced apart along its length. The inlet 121 is connected to the inlet hole 131, and the outlet 122 is connected to the outlet hole 132. Both the inlet hole 131 and the outlet hole 132 are connected to the gap between the piston cup 14 and the piston mounting seat 13. The mounting structure 1 also includes a sealing rubber plate 15, which is installed between the inlet / outlet nozzle 12 and the piston cup 14. The sealing rubber plate 15 has two through holes corresponding to the inlet hole 131 and the outlet hole 132 to improve the sealing between the inlet / outlet nozzle 12 and the piston cup 14.

[0043] In some embodiments, the sealing rubber plate 15 is snapped onto the piston fixing seat 13 through two through holes, and the inlet and outlet water nozzles 12 abut against the sealing rubber plate 15 to ensure the stability of the installation of the sealing rubber plate 15, thereby ensuring the sealing between the inlet and outlet water nozzles 12 and the piston cup 14, and improving the stability of the installation between the inlet and outlet water nozzles 12 and the piston cup 14.

[0044] In some embodiments, the mounting structure 1 further includes a first elastic element 16 and a water inlet valve head 17. The first elastic element 16, the water inlet valve head 17, the water inlet 121 and the water inlet hole 131 are located on the same straight line. One end of the first elastic element 16 elastically abuts against the piston fixing seat 13, and the other end elastically abuts against the water inlet valve head 17, so as to drive the water inlet valve head 17 to block the water inlet 121, thereby realizing unidirectional flow between the water inlet 121 and the water inlet hole 131. The structure is simple and easy to install.

[0045] In some embodiments, the mounting structure 1 further includes a second elastic element 18 and a water outlet valve head 19. The second elastic element 18, the water outlet valve head 19, the water outlet 122 and the water outlet hole 132 are located on the same straight line. One end of the second elastic element 18 elastically abuts against the inlet / outlet nozzle 12, and the other end elastically abuts against the water outlet valve head 19 to drive the water outlet valve head 19 to block the water outlet hole 132, thereby realizing unidirectional flow between the water outlet 122 and the water outlet hole 132. The structure is simple and easy to install.

[0046] In some embodiments, the micro water pump further includes a connecting rod 2 and a drive assembly 3. One end of the connecting rod 2 is engaged with the end of the piston cup 14 away from the piston fixing seat 13. The drive assembly 3 is installed between the base 111 and the top cover 112 and is used to drive the connecting rod 2 to reciprocate along the length of the base 111. In practical applications, the drive assembly 3 drives the connecting rod 2 to reciprocate, thereby compressing the piston cup 14 back and forth to change the volume of the cavity between the piston cup 14 and the piston fixing seat 13. Water enters the inlet / outlet nozzle 12 from the inlet 121 and flows through the inlet hole 131 to the space between the piston cup 14 and the piston fixing seat 13, and then flows through the outlet hole 132 to the outlet 122, thus realizing the operation of the micro water pump.

[0047] In some embodiments, the drive assembly 3 includes a drive motor 31, a first gear 32, and a second gear 33. The drive motor 31 is snapped between the base 111 and the top cover 112 at the end away from the inlet / outlet nozzle 12. The first gear 32 is fixedly connected to the power output shaft of the drive motor 31. The second gear 33 is eccentrically rotatably connected to the base 111. The connecting rod 2 is sleeved on the second gear 33, and the first gear 32 and the second gear 33 mesh. The drive motor 31 drives the first gear 32 to rotate, thereby driving the second gear 33 to rotate. Due to the eccentric setting of the second gear 33, the connecting rod 2 can be driven to reciprocate. The structure is structurally sound and operates stably. At the same time, the overall structure of the drive assembly 3 is compact, reducing the space occupied.

[0048] The implementation principle of this embodiment is as follows: In practical application, the inlet / outlet nozzle 12 and the piston cup 14 are first snapped onto the two ends of the piston fixing seat 13, and then the three are placed into the partial limiting installation groove 113 of the base 111 or the top cover 112, so that the inlet / outlet nozzle 12 and the piston cup 14 abut against the two ends of the limiting installation groove 113 respectively. After that, the base 111 and the top cover 112 are installed, and the piston cup 14 can be installed. The piston cup 14 can be assembled synchronously with the inlet / outlet nozzle 12 and the piston fixing seat 13 without the need for additional metal fixing rings, which facilitates the assembly of the piston cup 14 and reduces production costs.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An installation structure, characterized in that, The device includes a mounting shell (11), inlet and outlet nozzles (12), piston mounting base (13), and piston cup (14). The mounting shell (11) includes a base (111) and a top cover (112). The base (111) and the top cover (112) are detachably connected, and a limiting mounting groove (113) is formed between one end of the base (111) and the top cover (112). The piston mounting base (13) is located in the limiting mounting groove (113). The inlet and outlet nozzles (12) are engaged with one end of the piston mounting base (13) and abut against one end of the limiting mounting groove (113). The piston cup (14) is engaged with the other end of the piston mounting base (13) and abuts against the other end of the limiting mounting groove (113).

2. The installation structure according to claim 1, characterized in that, The piston cup (14) has a flange (141) on its periphery, and the flange (141) abuts against the end wall of the limiting mounting groove (113).

3. The installation structure according to claim 2, characterized in that, The flange (141) is recessed along its circumference to form a groove (142).

4. The installation structure according to claim 1, characterized in that, The mounting structure (1) also includes a sealing rubber plate (15), which is located between the inlet / outlet nozzle (12) and the piston cup (14).

5. The installation structure according to claim 4, characterized in that, The sealing rubber plate (15) is snapped into the piston fixing seat (13), and the inlet and outlet water nozzles (12) abut against the sealing rubber plate (15).

6. The installation structure according to claim 1, characterized in that, The installation structure (1) further includes a first elastic element (16) and an inlet valve head (17). The inlet and outlet nozzles (12) are provided with an inlet (121). The piston fixing seat (13) is provided with an inlet hole (131) spaced apart. The inlet (121) is connected to the inlet hole (131). The first elastic element (16) is located between the piston fixing seat (13) and the inlet valve head (17) to drive the inlet valve head (17) to block the inlet (121).

7. The installation structure according to claim 6, characterized in that, The installation structure (1) further includes a second elastic element (18) and a water outlet valve head (19). The inlet and outlet nozzle (12) is provided with a water outlet (122). The piston fixing seat (13) is provided with a water outlet hole (132) spaced apart. The water outlet hole (122) is connected to the water outlet hole (132). The second elastic element (18) is located between the inlet and outlet nozzle (12) and the water outlet valve head (19) to drive the water outlet valve head (19) to block the water outlet hole (132).

8. A miniature water pump, characterized in that, Includes the installation structure (1) as described in any one of claims 1-7.

9. A miniature water pump according to claim 8, characterized in that, The micro water pump also includes a connecting rod (2) and a drive assembly (3). One end of the connecting rod (2) is engaged with the piston cup (14) at the end away from the piston fixing seat (13). The drive assembly (3) is located between the base (111) and the upper cover (112) and is used to drive the connecting rod (2) to reciprocate along the length direction of the base (111).

10. A miniature water pump according to claim 9, characterized in that, The drive assembly (3) includes a drive motor (31), a first gear (32) and a second gear (33). The drive motor (31) is located at the end of the base (111) and the top cover (112) away from the inlet / outlet nozzle (12). The first gear (32) is located on the drive motor (31). The second gear (33) is eccentrically rotatably connected to the base (111) and the connecting rod (2) is sleeved on the second gear (33). The first gear (32) and the second gear (33) mesh with each other.

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