Support and pump head structure

Abstract

The utility model discloses a support and a pump head structure, the support comprises a support body, the support body is provided with a plurality of first through holes for a balance wheel to pass through, the plurality of first through holes are annularly distributed on the support body at intervals, each first through hole is provided with a narrow end, and the narrow end faces the center of the support body. The first through holes are integrally narrow inside and wide outside, more first through holes can be formed in the support body with the same size, the space on the support body can be fully utilized, more first through holes can be formed in the support body, more balance wheels can penetrate through the first through holes, and the balance wheels can penetrate through the first through holes. The volume of the booster pump does not need to be increased while the number of the cavities of the booster pump is increased, and installation and use of the booster pump are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a bracket and a pump head structure. Background Art

[0002] At present, diaphragm booster pumps are commonly used in water purifiers. The booster pump head usually includes a piston rack, a bracket, a diaphragm, a piston, a diaphragm chamber and a pump head cover arranged in sequence from bottom to top. A number of balance wheels are arranged on the piston rack, and the balance wheels pass through the bracket to connect with the piston. The balance wheel is usually a cylindrical structure, and the bracket is usually provided with a number of circular holes for the balance wheel to pass through. The holes are arranged circumferentially. However, due to the different diameters of the inner and outer circumferences of the piston rack, the conventional cylindrical structure balance wheel needs to occupy a large space on the inner circumference of the piston rack, resulting in that the piston rack can usually only be provided with less than five balance wheels, which limits the number of chambers of the booster pump. To address the above problems, technicians have developed a teardrop-shaped balance wheel, which allows the balance wheel to be arranged on the piston rack like a fan blade, making full use of the space of the piston rack and increasing the number of balance wheels within a limited space. However, the number of circular holes on the existing bracket also limits the number of chambers of the booster pump. Simply designing the balance wheel as a teardrop-shaped structure cannot truly solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to provide a bracket and pump head structure to solve the technical problem in the prior art that the bracket and the teardrop-shaped balance wheel have poor adaptability, resulting in difficulty in increasing the number of chambers in the booster pump.

[0004] The utility model provides a bracket, comprising a bracket body, the bracket body being provided with a plurality of first perforations for passage of a balance wheel, the plurality of first perforations being annularly spaced and distributed on the bracket body, the first perforations having narrow ends oriented toward the center of the bracket body. This arrangement allows the first perforations to be narrow on the inside and wide on the outside, enabling a greater number of first perforations to be provided on a bracket body of the same size, thereby fully utilizing the space on the bracket body and increasing the number of chambers of a booster pump without increasing the volume of the booster pump, thereby facilitating installation and use of the booster pump.

[0005] In the bracket described above, the left side wall of each first through-hole is parallel to the right side wall of an adjacent first through-hole. This arrangement maximizes the use of space on the bracket body, facilitating the provision of more first through-holes on the bracket body to accommodate more balance wheels, thereby forming a booster pump with more chambers.

[0006] In the bracket described above, the first perforation is teardrop-shaped, with the angle between the left and right walls of the first perforation ranging from 50° to 70°. Both the piston and the balance wheel are teardrop-shaped, narrow inside and wide outside. The first perforation is larger than the balance wheel, allowing the balance wheel to easily move up and down within the first perforation.

[0007] In the bracket described above, the edge of the first perforation on the side facing the diaphragm is provided with a circular chamfer. Providing the circular chamfer on the edge of the first perforation on the side facing the diaphragm can ease contact between the diaphragm surface and the first perforation when the balance wheel drives the diaphragm up and down, reducing wear on the diaphragm by the edge of the first perforation, thereby extending the service life of the diaphragm.

[0008] In the bracket described above, a side wall of the bracket body facing the diaphragm is a planar wall, and a sealing ring mounting groove is provided on the planar wall. The sealing ring mounting groove surrounds the plurality of first perforations. A sealing ring is mounted in the sealing ring mounting groove. When the diaphragm is mounted on the bracket, one end of the sealing ring abuts the bottom of the sealing ring mounting groove, and the other end abuts the diaphragm, thereby enhancing the sealing performance of the diaphragm and increasing the stability of the diaphragm installation.

[0009] In the bracket described above, the sealing ring installation groove has a plurality of outwardly protruding arc segments, each arc segment corresponding to one of the first through-holes. The diaphragm is shaped like a petal, and the shape of the diaphragm is the same as that of the sealing ring installation groove, and the size is also adapted.

[0010] In the bracket described above, a concave section is formed between each two adjacent arcuate sections, and a first mounting hole for connecting to the pump head cover is provided in the concave section. The first mounting hole is located on the outer periphery of the sealing ring mounting groove, so that the diaphragm can be accommodated in the mounting cavity formed when the pump head cover and the bracket are connected.

[0011] In the bracket described above, the planar wall is provided with at least one stopper block, which is located on the outer periphery of the sealing ring mounting groove. By defining the position of the pump head cover with the stopper block, the pump head cover can be quickly positioned, facilitating assembly of the booster pump and improving product installation efficiency.

[0012] In the bracket described above, the stop block includes two stop blocks, each located on either side of the first mounting hole. By defining the position of the pump head cover with two oppositely oriented stop blocks, the pump head cover can be quickly positioned, facilitating assembly of the booster pump and improving product installation efficiency.

[0013] The utility model also provides a pump head structure, comprising the bracket as described above.

[0014] The implementation of the present invention will have the following beneficial effects:

[0015] In the present invention, a bracket includes a bracket body, the bracket body being provided with a plurality of first perforations for the balance wheel to pass through. The plurality of first perforations are annularly spaced and arranged on the bracket body, each having a narrow end oriented toward the center of the bracket body. The first perforations are generally narrow on the inside and wide on the outside, allowing for a greater number of first perforations to be provided on a bracket body of the same size, thereby fully utilizing the space on the bracket body and increasing the number of chambers of the booster pump without increasing the volume of the booster pump, thereby facilitating installation and use of the booster pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order 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 use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a schematic structural diagram of a bracket according to an exemplary embodiment;

[0018] Figure 2 is a structural schematic diagram of a bracket from another perspective according to an exemplary embodiment;

[0019] Figure 3 is a top view of a bracket according to an exemplary embodiment;

[0020] Figure 4 is a structural exploded view of a pump head structure according to an exemplary embodiment;

[0021] Figure 5 FIG. 1 is a structural exploded view of a pump head structure from another perspective according to an exemplary embodiment.

[0022] Among them: 1. bracket body; 11. first through-hole; 111. narrow end; 112. arc chamfer; 12. plane wall; 13. sealing ring mounting groove; 131. arc section; 132. concave section; 14. first mounting hole; 15. limit block; 16. accommodating groove; 2. sealing ring; 3. piston rack; 31. balance wheel; 4. diaphragm; 5. piston; 6. diaphragm chamber; 7. pump head cover; 71. second mounting hole; 72. positioning hole. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] See also Figure 1-Figure 3The present invention provides a bracket, including a bracket body 1. The bracket body 1 is provided with a plurality of first through-holes 11 for passing a balance wheel 31. The plurality of first through-holes 11 are distributed in an annular pattern on the bracket body 1. The first through-holes 11 have narrow ends 111, which face the center of the bracket body 1. The first through-holes 11 are generally narrow on the inside and wide on the outside. More first through-holes 11 can be provided on a bracket body 1 of the same size, making full use of the space on the bracket body 1. This facilitates providing more first through-holes 11 on the bracket body 1 to allow for the passage of more balance wheels 31, thereby increasing the number of chambers of the booster pump without increasing the volume of the booster pump, and facilitating the installation and use of the booster pump.

[0029] Furthermore, the left side wall of each first perforation 11 is parallel to the right side wall of an adjacent first perforation 11, which can maximize the use of the space on the bracket body 1 and is conducive to setting more first perforations 11 on the bracket body 1 for more balance wheels 31 to pass through, so as to form a booster pump with more chambers.

[0030] Furthermore, the first through-hole 11 has a teardrop-shaped structure, with the angle between the left and right sides of the first through-hole 11 ranging from 50° to 70°. Specifically, the piston 5 and the balance wheel 31 both have teardrop-shaped structures that are narrow inside and wide outside. The first through-hole 11 is larger than the balance wheel 31, allowing the balance wheel 31 to easily move up and down within the first through-hole 11. In one specific embodiment, the angle between the left and right sides of the first through-hole 11 is 60°.

[0031] Furthermore, the edge of the first through-hole 11 on the side facing the diaphragm 4 is provided with a circular chamfer 112. By providing the circular chamfer 112 on the edge of the first through-hole 11 on the side facing the diaphragm 4, when the balance wheel 31 drives the diaphragm 4 up and down, the circular chamfer 112 can alleviate the contact between the surface of the diaphragm 4 and the first through-hole 11, reduce the wear of the diaphragm 4 by the edge of the first through-hole 11, and extend the service life of the diaphragm 4.

[0032] Furthermore, one side wall of the bracket body 1 facing the diaphragm 4 is a planar wall 12, and a sealing ring mounting groove 13 is provided on the planar wall 12. The sealing ring mounting groove 13 surrounds the first through-holes 11. A sealing ring 2 is mounted in the sealing ring mounting groove 13. When the diaphragm 4 is mounted on the bracket, one end of the sealing ring 2 abuts the bottom of the sealing ring mounting groove 13, and the other end abuts the diaphragm 4, thereby enhancing the sealing performance of the diaphragm 4 and increasing the stability of the installation of the diaphragm 4.

[0033] Furthermore, the sealing ring installation groove 13 has a plurality of outwardly protruding arc segments 131, each arc segment 131 corresponding to one of the first through holes 11. The diaphragm 4 is petal-shaped, and has the same shape and size as the sealing ring installation groove 13.

[0034] Furthermore, a concave section 132 is formed between each two adjacent arc-shaped sections 131, and a first mounting hole 14 is provided on the concave section 132 for connecting to the pump head cover 7. The first mounting hole 14 is located on the outer periphery of the sealing ring mounting groove 13, so that the diaphragm 4 can be accommodated in the mounting cavity formed when the pump head cover 7 is connected to the bracket.

[0035] Furthermore, at least one limiting block is provided on the planar wall 12, and the limiting block is located on the outer periphery of the sealing ring mounting groove 13. By defining the position of the pump head cover 7 by the limiting block, the pump head cover 7 can be quickly positioned, facilitating the assembly of the booster pump and improving the installation efficiency of the product.

[0036] In a specific embodiment, the number of the first perforations 11 is six, and the sealing ring mounting groove 13 surrounds the six first perforations 11 and forms six arc segments 131 and six concave segments 132. The number of the limiting blocks is three, and the three limiting blocks are arranged at three spaced concave segments 132 to form a three-point positioning, which can realize the positioning of the pump head cover in multiple directions.

[0037] Furthermore, the positioning assembly includes two positioning blocks 15, each positioned on either side of a first mounting hole 14. Specifically, the positioning blocks 15 are triangular in shape, with one side of the positioning block 15 facing the first mounting hole 14 and the corresponding sharp corner facing away from the first mounting hole 14. The two positioning blocks 15 are wing-shaped, positioned on either side of the first mounting hole 14. By defining the position of the pump head cover 7 with two opposing positioning blocks 15, the pump head cover 7 can be quickly positioned, facilitating assembly of the booster pump and improving product installation efficiency.

[0038] Specifically, a receiving groove 16 is further provided on the side of the bracket body 1 facing the piston frame 3 . The receiving groove 16 is used to accommodate the piston frame 3 so as to facilitate the balance wheel 31 on the piston frame 3 to pass through the first through hole 11 .

[0039] See also Figure 4 and Figure 5The present invention also provides a pump head structure, including a bracket, the bracket including a bracket body 1, the bracket body 1 being provided with a plurality of first through-holes 11 for the passage of a balance wheel 31, the plurality of first through-holes 11 being distributed annularly and spaced apart on the bracket body 1, the first through-holes 11 having a narrow end 111, the narrow end 111 facing the center of the bracket body 1. The first through-holes 11 are generally narrow inside and wide outside, and more first through-holes 11 can be provided on a bracket body 1 of the same size, making full use of the space on the bracket body 1 and facilitating the provision of more first through-holes 11 on the bracket body 1 for the passage of more balance wheels 31. This increases the number of chambers of the booster pump without increasing the volume of the booster pump, facilitating the installation and use of the booster pump.

[0040] Furthermore, the pump head structure also includes a sealing ring 2, a piston rack 3, a diaphragm 4, a piston 5, a diaphragm chamber 6 and a pump head cover 7. A balance wheel 31 is provided on the piston 5. The balance wheel 31 is a teardrop-shaped structure that is narrow inside and wide outside. The pump head cover 7 is installed on the bracket to form a mounting cavity. The diaphragm 4, the piston 5 and the diaphragm chamber 6 are all arranged in the mounting cavity. The diaphragm 4 is provided with a protruding structure on the side facing the bracket, and a third mounting hole is provided on the other side of the diaphragm 4 body. The third mounting hole passes through the protruding structure, and the piston 5 is penetrated into the third mounting hole from top to bottom. A fourth mounting hole is provided on the piston 5, and a screw is installed on the piston 5. The screw passes through the fourth mounting hole and is connected to the balance wheel 31; the sealing ring 2 is plugged into the sealing ring mounting groove 13 to enhance the sealing performance of the diaphragm 4 so as to fix the diaphragm 4 between the pump head cover 7 and the bracket.

[0041] Specifically, the pump head cover 7 is provided with a second mounting hole 71 and a group of positioning holes 72. The group of positioning holes 72 includes two positioning holes 72 arranged on both sides of the second mounting hole 71. The two positioning holes 72 are both triangular structures. A sharp corner of the positioning hole 72 faces away from the second mounting hole 71. The two positioning holes 72 are wing-shaped on the left and right sides of the second mounting hole 71. During installation, the two limit blocks 15 on both sides of the first mounting hole 14 on the bracket body 1 are respectively inserted into the two positioning holes 72 on both sides of the second mounting hole 71 to limit the position of the pump head cover 7, which can achieve rapid positioning of the pump head cover 7. Bolts are then passed through the first mounting hole 14 and the second mounting hole 71 in sequence to fix the pump head cover 7 to the bracket, which facilitates the assembly of the booster pump and improves the installation efficiency of the product.

[0042] In a specific embodiment, a coating layer is provided on the bottom wall of the diaphragm 4, and the coating layer is crimped onto the planar wall 12 of the bracket body 1 and the top wall of the balance wheel 31, which can avoid the presence of a gap between the bottom wall of the diaphragm 4 and the top wall of the balance wheel 31, further improving the sealing of the connection between the diaphragm 4 and the balance wheel 31, and avoiding water overflow.

[0043] The working principle of the booster pump is that the motor drives the inclined eccentric cam to rotate, thereby driving the piston frame 3 and the balance wheel 31 thereon to swing up and down. The diaphragm 4 elastically deforms with the swing of the balance wheel 31, causing the volume of the booster chamber to change, thereby realizing the process of water suction-boosting and drainage.

[0044] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model.

Claims

1. A bracket, characterized in that: The invention comprises a support body (1), wherein the support body (1) is provided with a plurality of first through-holes (11) for the balance wheel (31) to pass through, wherein the plurality of first through-holes (11) are distributed on the support body (1) in an annular manner, and wherein the first through-holes (11) have narrow ends (111), and wherein the narrow ends (111) face the center of the support body (1).

2. The bracket according to claim 1, wherein: The left side wall of each first through hole (11) is parallel to the right side wall of an adjacent first through hole (11).

3. The bracket according to claim 2, characterized in that The first through hole (11) has a water drop-shaped structure, and the angle between the left side wall and the right side wall of the first through hole (11) ranges from 50° to 70°.

4. The bracket according to claim 3, characterized in that The edge of the first perforation (11) on the side facing the diaphragm (4) is provided with a circular chamfer (112).

5. The bracket according to claim 1, wherein: A side wall of the bracket body (1) facing the diaphragm (4) is a plane wall (12), and a sealing ring installation groove (13) is provided on the plane wall (12). The sealing ring installation groove (13) surrounds a plurality of the first through holes (11).

6. The bracket according to claim 5, characterized in that The sealing ring installation groove (13) has a plurality of arc-shaped segments (131) protruding outwards, and each arc-shaped segment (131) corresponds to one of the first through holes (11).

7. The bracket according to claim 6, characterized in that A concave section (132) is formed between every two adjacent arc sections (131), and a first mounting hole (14) for connecting with a pump head cover is provided on the concave section (132).

8. The bracket according to claim 7, characterized in that At least one limiting block is provided on the plane wall (12), and the limiting block is located on the outer peripheral side of the sealing ring installation groove (13).

9. The bracket according to claim 8, characterized in that The limiting assembly comprises two limiting blocks (15), and the two limiting blocks (15) are respectively located on both sides of one of the first mounting holes (14).

10. A pump head structure, characterized in that: Comprising the bracket according to any one of claims 1-9.

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