Vacuum diaphragm pump adopting integrated diaphragm

Abstract

The utility model discloses a vacuum diaphragm pump adopting an integrated diaphragm, and relates to the technical field of diaphragm pumps. The integrated diaphragm pump comprises an integrated diaphragm pump body and a diaphragm assembly, the integrated diaphragm pump body comprises a shell, and a mounting frame is fixedly connected to the interior of the shell. By optimizing the structural design of a gas path, the original pipe diameter is increased, the gas path is shortened, the accumulation of boron diffusion dust is reduced, the independent gas inlet valve and the independent exhaust valve are arranged, the probability that gas in a pipeline is condensed into crystals is effectively reduced, the risk of crystal blockage is reduced, and the maintenance period of the diaphragm pump is prolonged; the thickness of the integrated composite diaphragm is increased, so that the tensile strength, the elongation, the breaking strength and the maximum deformation of the diaphragm are enhanced; the diaphragm and the groove of the pump cavity are installed in a matched mode, isolation of a mechanical part in the pump cavity and acid etching gas and liquid can be effectively guaranteed through improvement of the assembly structure, and a rotating mechanism in the pump body is prevented from being damaged by leaked liquid.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaphragm pumps, in particular to a vacuum diaphragm pump adopting an integrated diaphragm. Background Art

[0002] With the continuous advancement of solar photovoltaic manufacturing technology and the continuous improvement of cell efficiency, the current mainstream chemical diaphragm pumps are no longer able to meet the development requirements of cost reduction and efficiency improvement in the context of extreme internal competition in the industry and market. Maintenance and servicing costs have become a prominent pain point for customers. With the continuous improvement of process equipment, the volume of process furnace tubes is constantly increasing to meet the production requirements of mainstream cells in the market. The pumping speed requirements of diaphragm pumps are also becoming increasingly higher. This will significantly shorten the service life and maintenance cycle of the diaphragms, and invisibly increase the cost of subsequent maintenance and servicing.

[0003] Currently, chemical diaphragm pumps (including imported brands) widely used in the market suffer from common shortcomings such as short diaphragm life, high maintenance costs, and short warranty periods. These shortcomings also include significant process variability at the customer end, and a lack of prompt response and resolution to improvement suggestions. To address these issues, the Suzhou Kerida technical team, based on research into existing issues with similar equipment, has implemented a series of optimization and technological innovations. Utility Model Content

[0004] The purpose of the present utility model is to provide a vacuum diaphragm pump using an integrated diaphragm to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a vacuum diaphragm pump using an integrated diaphragm, comprising an integrated diaphragm pump body and a diaphragm assembly. The integrated diaphragm pump body comprises a housing, a mounting bracket is fixedly connected to the interior of the housing, a pump cavity is mounted inside the mounting bracket, a plurality of grooves are provided on the peripheral side of the pump cavity, and four groups of diaphragm assemblies are provided, and the four groups of diaphragm assemblies are respectively arranged on the peripheral side of the pump cavity;

[0007] The diaphragm assembly includes a pump head cover and an integrated composite diaphragm. There are two groups of integrated composite diaphragms, and the thickness of the integrated composite diaphragms is 2.5mm-4.5mm. The two groups of integrated composite diaphragms are respectively arranged in the grooves and match the grooves. There are two groups of pump head covers, and the two groups of pump head covers are respectively fixedly connected to the sides of the pump cavity. The bottom surface of the pump head cover is in contact with the integrated composite diaphragm, and one-way valves are installed on both sides of the upper surface of the pump head cover. A clamping plate is provided between the top ends of the two groups of one-way valves, and the clamping plate is clamped and fixed to the one-way valve by external screws.

[0008] Among them, a connecting pipeline is installed between the two groups of one-way valves on the pump head covers, the diameter of the connecting pipeline is 10.5mm-13.5mm, and a mounting plate is fixedly connected to one surface of the pump cavity. An air intake valve and an exhaust valve are respectively installed on one surface of the mounting plate, and air pipes are respectively installed between the air intake valve and the exhaust valve and multiple groups of connecting pipelines.

[0009] Among them, one end of the intake valve and the exhaust valve are respectively arranged on the outside of the outer shell, and the inner side surface of the mounting plate is rotatably connected to a connecting rod, which is arranged inside the pump cavity and rotatably cooperates with the pump cavity. The circumferential sides of both ends of the connecting rod are fixedly connected to multiple groups of eccentric wheels, and one side of the eccentric wheel is fixedly connected to a connecting plate. The bottom end of the integrated composite diaphragm is fixedly connected to a protruding block, and one end of the protruding block is fixedly connected to a screw, and one end of the connecting screw is arranged in the connecting plate and is threadedly fixed to the connecting plate.

[0010] The layout of the interior of the pump cavity is a quadrilateral with two holes, a quadrilateral with multiple holes, or a hexagonal with multiple holes.

[0011] The utility model has the following beneficial effects:

[0012] 1. This utility model optimizes the gas path structure design, increases the original pipe diameter, shortens the gas path, reduces the backlog of boron expansion dust, and sets independent air inlet valves and exhaust valves, effectively reducing the probability of gas in the pipeline condensing into crystals, reducing the risk of crystallization blockage, and extending the maintenance cycle of the diaphragm pump.

[0013] 2. The thickness of the integrated composite diaphragm is increased to more than several times that of the original structure, which enhances the tensile strength and elongation, breaking strength and maximum deformation of the diaphragm.

[0014] 3. The diaphragm and the grooves of the pump cavity are installed to match each other. The improvement in the assembly structure can effectively ensure the isolation of the mechanical parts inside the pump cavity and the acid-etched gas and liquid, and prevent leakage from damaging the rotating mechanism inside the pump body. At the same time, according to the structure of the new diaphragm, the cavity structure of the diaphragm pump working chamber is improved synchronously, so that the diaphragm and the pump cavity have a higher degree of fit during operation, which makes it easier to control the gas discharge of the cavity and reduce residual medium, which also plays a role in extending the service life and maintenance cycle of the diaphragm pump.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. 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 This is a schematic diagram of the three-dimensional assembly structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of area A in the middle;

[0020] Figure 4 It is a front view of the internal structure of the utility model;

[0021] Figure 5 for Figure 4 Schematic diagram of the BB cross-section structure;

[0022] Figure 6 for Figure 5 Enlarged view of area C in the middle;

[0023] Figure 7 This is a schematic diagram of the internal layout of the pump cavity in the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Integrated diaphragm pump body; 101. Outer casing; 102. Inlet valve; 103. Exhaust valve; 104. Mounting bracket; 105. Pump chamber; 106. Mounting plate; 107. Connecting rod; 108. Eccentric wheel; 109. Connecting plate; 110. Groove; 2. Diaphragm assembly; 201. Pump head cover; 202. One-way valve; 203. Connecting pipe; 204. Pressure plate; 205. Integrated composite diaphragm; 206. Connecting screw. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying 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.

[0027] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] See also Figures 1-6 As shown, the utility model is a vacuum diaphragm pump using an integrated diaphragm, including an integrated diaphragm pump body 1 and a diaphragm assembly 2. The integrated diaphragm pump body 1 includes a shell 101, the interior of the shell 101 is fixedly connected to a mounting bracket 104, a pump cavity 105 is installed inside the mounting bracket 104, and the peripheral side of the pump cavity 105 is provided with multiple groups of grooves 110. The diaphragm assembly 2 is provided with four groups, and the four groups of diaphragm assemblies 2 are respectively arranged on the peripheral side of the pump cavity 105. The diaphragm assembly 2 includes a pump head cover 201 and an integrated composite diaphragm sheet 205. The integrated Two groups of integrated composite diaphragms 205 are provided, and the two groups of integrated composite diaphragms 205 are respectively arranged in the groove 110 and match the groove 110. Two groups of pump head covers 201 are provided, and the two groups of pump head covers 201 are respectively fixedly connected to the side surfaces of the pump cavity 105. The bottom surface of the pump head cover 201 is in contact with the integrated composite diaphragm 205, and both sides of the upper surface of the pump head cover 201 are installed with a one-way valve 202; a pressing plate 204 is provided between the top ends of the two groups of one-way valves 202, and the pressing plate 204 is pressed and fixed to the one-way valve 202 by external screws;

[0030] A connecting pipe 203 is installed between the one-way valves 202 on the two groups of pump head covers 201. The diameter of the connecting pipe 203 is 10.5mm-13.5mm. A mounting plate 106 is fixedly connected to one surface of the pump cavity 105. An intake valve 102 and an exhaust valve 103 are respectively installed on one surface of the mounting plate 106. Air pipes are respectively installed between the intake valve 102 and the exhaust valve 103 and the multiple groups of connecting pipes 203. The original 10MM pipe diameter is increased to 10.5MM-13.5MM, preferably 12MM. At the same time, the gas passage is shortened, the backlog of boron expansion dust is reduced, and independent intake valves 102 and exhaust valves 103 are set, which effectively reduce the probability of gas in the pipeline condensing into crystals, reduce the risk of crystallization blockage, and extend the maintenance cycle of the diaphragm pump.

[0031] One end of the intake valve 102 and the exhaust valve 103 are respectively arranged on the outside of the outer shell 101, and the inner surface of the mounting plate 106 is rotatably connected to the connecting rod 107. The connecting rod 107 is arranged inside the pump cavity 105 and rotatably cooperates with the pump cavity 105. The circumferential sides of both ends of the connecting rod 107 are fixedly connected to multiple groups of eccentric wheels 108, and one side of the eccentric wheel 108 is fixedly connected to a connecting plate 109. The bottom end of the integrated composite diaphragm 205 is fixedly connected to a protruding block, and one end of the protruding block is fixedly connected to a screw 206. One end of the connecting screw 206 is arranged in the connecting plate 109 and is threadedly fixed to the connecting plate 109.

[0032] The thickness of the integrated composite diaphragm 205 is 2.5 mm to 4.5 mm. It is preferred to increase the thickness of the integrated composite diaphragm 205 to 3.5 mm, which is many times thicker than the original structure, thereby enhancing the tensile strength and elongation, breaking strength and maximum deformation of the diaphragm.

[0033] like Figure 7 As shown, the layout inside the pump cavity 105 is a quadrilateral with two holes, a quadrilateral with multiple holes, or a hexagonal with multiple holes; the layout style of the quadrilateral with two holes is that the connecting plate 109 is arranged horizontally or vertically, the layout style of the quadrilateral with multiple holes is that the connecting plate 109 is arranged at a 90-degree division, and the layout style of the hexagonal with multiple holes is that the connecting plate 109 is arranged at a 60-degree division. The preferred layout style of the present invention is that the connecting plate 109 is arranged at a 90-degree division.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum diaphragm pump using an integrated diaphragm, comprising an integrated diaphragm pump body (1) and a diaphragm assembly (2), characterized in that: The integrated diaphragm pump body (1) includes a shell (101), the interior of the shell (101) is fixedly connected to a mounting frame (104), the interior of the mounting frame (104) is installed with a pump cavity (105), the peripheral side of the pump cavity (105) is provided with multiple groups of grooves (110), the diaphragm assembly (2) is provided with four groups, and the four groups of diaphragm assemblies (2) are respectively arranged on the peripheral side of the pump cavity (105), the diaphragm assembly (2) includes a pump head cover (201) and an integrated composite diaphragm sheet (205), the integrated composite diaphragm sheet (205) is provided with two groups, the two groups of the integrated composite diaphragm sheets (205) are respectively arranged in the groove (110) and match the groove (110), the pump head Two groups of covers (201) are provided, and the two groups of pump head covers (201) are respectively fixedly connected to the side surfaces of the pump cavity (105), and the bottom surface of the pump head cover (201) is in contact with the integrated composite diaphragm (205). One-way valves (202) are installed on both sides of the upper surface of the pump head cover (201), and a connecting pipeline (203) is installed between the one-way valves (202) on the two groups of pump head covers (201). A mounting plate (106) is fixedly connected to one surface of the pump cavity (105), and an air intake valve (102) and an exhaust valve (103) are respectively installed on one surface of the mounting plate (106), and air pipes are respectively installed between the air intake valve (102) and the exhaust valve (103) and the multiple groups of connecting pipelines (203).

2. A vacuum diaphragm pump using an integrated diaphragm according to claim 1, characterized in that: One end of the intake valve (102) and the exhaust valve (103) are respectively arranged on the outside of the shell (101); the inner side surface of the mounting plate (106) is rotatably connected to a connecting rod (107); the connecting rod (107) is arranged inside the pump cavity (105) and rotatably cooperates with the pump cavity (105); a plurality of eccentric wheels (108) are fixedly connected to the circumferential sides of both ends of the connecting rod (107); one side of the eccentric wheel (108) is fixedly connected to a connecting plate (109); the bottom end of the integrated composite diaphragm (205) is fixedly connected to a protruding block; one end of the protruding block is fixedly connected to a screw (206); one end of the connecting screw (206) is arranged in the connecting plate (109) and is threadedly fixed to the connecting plate (109).

3. A vacuum diaphragm pump using an integrated diaphragm according to claim 2, characterized in that: The diameter of the connecting pipe (203) is 10.5 mm to 13.5 mm, and the thickness of the integrated composite diaphragm (205) is 2.5 mm to 4.5 mm.

4. A vacuum diaphragm pump using an integrated diaphragm according to claim 3, characterized in that: A pressing plate (204) is provided between the top ends of the two groups of one-way valves (202), and the pressing plate (204) is pressed and fixed to the one-way valves (202) via external screws.

5. A vacuum diaphragm pump using an integrated diaphragm according to claim 4, characterized in that: The layout inside the pump cavity (105) is a quadrilateral with two holes, a quadrilateral with multiple holes, or a hexagonal with multiple holes.

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