Integrated motor body, manufacturing method thereof, auxiliary sleeve and pneumatic diaphragm pump

Abstract

The invention relates to the technical field of diaphragm pumps, and provides an integrated motor body, a manufacturing method of the integrated motor body, an auxiliary sleeve and a pneumatic diaphragm pump. The integrated motor body is provided with two opposite side faces, an air valve space and a first air valve hole are formed in the integrated motor body, and the air valve space is located between the two side faces. The first air valve hole penetrates through the air valve space, and the two opposite ends of the first air valve hole penetrate through the two side faces correspondingly. An airflow reversing hole communicated with the air valve space is formed in each side surface; the airflow reversing hole is spaced from the first air valve hole; two drainage holes are further formed in the integrated motor body and do not penetrate through the side face. The drainage holes communicate the adjacent airflow reversing holes with the first air valve holes in a one-to-one correspondence mode. According to the integrated motor body provided by the invention, connection points of part assembly can be reduced, so that the direction of airflow in the integrated motor body is determined, and the strength and stability of a finished motor body product are improved.

Description

Technical Field

[0001] The present application relates to the technical field of diaphragm pumps, and in particular to an integrated motor body and a manufacturing method thereof, an auxiliary sleeve, and a pneumatic diaphragm pump. Background Art

[0002] An air-operated diaphragm pump is a device that transports fluid by controlling the reciprocating motion of the diaphragm to change the volume of the chamber.

[0003] The pneumatic diaphragm pump in the related art usually requires multiple parts to be assembled and formed to form multiple chambers. The diaphragm pump designed in this way requires higher processing precision and multiple seals to ensure the sealing of each chamber, resulting in reduced stability of the quality of the finished product. Summary of the Invention

[0004] The embodiments of the present application provide an integrated motor body and its manufacturing method, an auxiliary sleeve and a pneumatic diaphragm pump, which can improve the technical problem in the related art that the split diaphragm pump requires the assembly of multiple parts, resulting in reduced stability of the finished product quality.

[0005] In a first aspect, an embodiment of the present application provides an integrated motor body for use in a pneumatic diaphragm pump, wherein the integrated motor body is an integrated metal motor body; the integrated motor body has two oppositely disposed side surfaces, the side surfaces being configured to oppose the diaphragm of the pneumatic diaphragm pump; an air valve space and a first air valve hole are defined within the integrated motor body, the air valve space being located between the two side surfaces; the first air valve hole penetrates the air valve space, and opposite ends of the first air valve hole respectively penetrate the two side surfaces; each of the side surfaces is provided with an airflow reversing hole connected to the air valve space; the airflow reversing hole is spaced apart from the first air valve hole; Two drainage holes are further provided inside the integrated motor body, and the drainage holes do not penetrate the side surface; the drainage holes connect the adjacent airflow reversing holes to the first air valve hole in a one-to-one correspondence.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The integrated motor body provided in the embodiment of the present application can form an air valve space, a central chamber and an exhaust chamber in the integrated motor body, and form a flow channel in the integrated motor body to connect the air valve space, the central chamber and the exhaust chamber in sequence, so that the airflow can determine the direction in the integrated motor body, reduce the number of parts constituting the motor body, and reduce the connection points for the assembly of parts, which is conducive to improving the reliability and stability of the finished product, improving the durability of the integrated motor body, reducing the need for maintenance work, reducing the need for assembly process, and improving the work efficiency of assembling the integrated motor body.

[0007] In some embodiments, the integrated motor body includes a middle body portion and two diaphragm row portions respectively arranged on opposite sides of the middle body, each of the diaphragm row portions having a side surface facing away from the other diaphragm row portion; the interior of the middle body portion is provided with the air valve space, the first air valve hole and the drainage hole.

[0008] In some embodiments, the minimum distance from the axis of the drainage hole to the side surface is greater than the radius of the drainage hole.

[0009] In some embodiments, a groove is formed on the side surface along the axis of the first air valve hole, and the groove is used to assemble an auxiliary sleeve that closes the end of the first air valve hole and guides the gas in the drainage hole to the end of the first air valve hole.

[0010] In some embodiments, the integrated motor body further has a peripheral surface; the peripheral surface is located between the two side surfaces; and the first end of the drainage hole passes through the peripheral surface.

[0011] In some embodiments, two bosses are formed on the peripheral surface; the first ends of the drainage holes pass through the bosses in a one-to-one correspondence.

[0012] In some embodiments, an internal thread is provided on the hole wall of the first end of the drainage hole, and the internal thread is at least partially located inside the boss.

[0013] In some embodiments, a second air valve hole is further provided inside the integrated motor body. The second air valve hole penetrates the air valve space, and opposite ends of the second air valve hole penetrate the two side surfaces respectively. The second air valve hole is spaced apart from the first air valve hole. Two reversing gas delivery grooves are provided on the bottom wall of the gas valve space; the two reversing gas delivery grooves are spaced apart along the axis direction of the second gas valve hole; the two reversing gas delivery grooves are connected to the two airflow reversing holes in a one-to-one correspondence; Each of the side surfaces is provided with a diaphragm ventilation hole connected to the air valve space, and the diaphragm ventilation hole is spaced apart from the air flow reversing hole; two diaphragm air delivery grooves are provided on the bottom wall of the air valve space; the two diaphragm air delivery grooves are spaced apart along the axis direction of the first air valve hole; the two diaphragm air delivery grooves are connected to the two diaphragm ventilation holes in a one-to-one correspondence; The integrated motor body is also provided with an exhaust space and an exhaust port, the exhaust space is connected to the two reversing air supply grooves and the two diaphragm air supply grooves; the exhaust space is connected to the outside of the integrated motor body; the exhaust port is connected to the exhaust space; one end of the exhaust port is connected to the outside of the integrated motor body.

[0014] In some embodiments, a central axis hole is further provided inside the integrated motor body, and the opposite ends of the central axis hole respectively pass through the centers of the two side surfaces; the central axis hole, the first air valve hole, the second air valve hole, the airflow reversing hole and the diaphragm ventilation hole are spaced apart from each other.

[0015] In a second aspect, an embodiment of the present application provides a method for manufacturing an integrated motor body, for manufacturing an integrated motor body as described in any one of the above embodiments, the method comprising: An integrated motor body base is provided, wherein the integrated motor body base is an integrated metal motor body base; the integrated motor body base has two oppositely disposed side surfaces, an air valve space and a first air valve hole are provided within the integrated motor body base, and the air valve space is located between the two side surfaces; the first air valve hole extends through the air valve space, and opposite ends of the first air valve hole extend through the two side surfaces, respectively; each of the side surfaces is provided with an airflow reversing hole connected to the air valve space; the airflow reversing hole is spaced apart from the first air valve hole; the integrated motor body base further has a peripheral surface, and the peripheral surface is located between the two side surfaces; Two drainage holes are provided on the peripheral surface; the drainage holes do not penetrate the side surface; the drainage holes connect the adjacent airflow reversing holes to the first air valve hole in a one-to-one correspondence.

[0016] In some embodiments, a second air valve hole is further provided inside the integrated motor body base, the second air valve hole penetrates the air valve space, and opposite ends of the second air valve hole respectively penetrate the two side surfaces; the second air valve hole is spaced apart from the first air valve hole; Two reversing gas delivery grooves are provided on the bottom wall of the gas valve space; the two reversing gas delivery grooves are spaced apart along the axis direction of the second gas valve hole; the two reversing gas delivery grooves are connected to the two airflow reversing holes in a one-to-one correspondence; Each of the side surfaces is provided with a diaphragm ventilation hole connected to the air valve space, the diaphragm ventilation hole being spaced apart from the air flow reversing hole; two diaphragm air delivery grooves are provided on the bottom wall of the air valve space; the two diaphragm air delivery grooves are spaced apart along the axis of the first air valve hole; the two diaphragm air delivery grooves are connected to the two diaphragm ventilation holes in a one-to-one correspondence; The integrated motor body base is further provided with an exhaust port; the exhaust port is spaced apart from the air valve; The method further comprises: An exhaust space is provided on the peripheral surface; the exhaust space is communicated with the two reversing air delivery grooves and the two diaphragm air delivery grooves; and the exhaust space is communicated with the outside of the integrated motor body.

[0017] In a third aspect, an embodiment of the present application provides an auxiliary sleeve for assembly into a first air valve hole of an integrated motor body as described in any one of the above embodiments; the auxiliary sleeve comprises: A sleeve body having a hollow space; the hollow space is used to communicate with the first air valve hole; a guide channel is opened on the outer wall of the sleeve body, the guide channel is used to communicate with the drainage hole, and one end of the guide channel passes through the inner wall of one end of the sleeve body to form an opening for communicating with one end of the hollow space; A cover body is provided on one end of the sleeve body close to the opening; the cover body is used to close one end of the sleeve body.

[0018] In some embodiments, a guide groove and a drainage groove are provided on the outer wall of the sleeve, and the guide groove is connected to the drainage hole; the drainage groove is located on one side of the guide groove; the drainage groove is connected to the guide groove; the drainage groove passes through the sleeve and forms the opening on the inner wall of the sleeve; the opening is located at one end of the hollow space close to the cover body.

[0019] In some embodiments, the guide groove is an outer circular groove provided on the outer side wall of the sleeve around the axis direction of the sleeve.

[0020] In some embodiments, a first sealing groove is further provided on the outer side wall of the sleeve; the first sealing groove is located on a side of the outer circular groove away from the cover body.

[0021] In some embodiments, a second sealing groove is formed on the end surface of the cover body facing the sleeve body, and the inner diameter of the second sealing groove is equal to the diameter of the outer wall of the sleeve body.

[0022] In a fourth aspect, an embodiment of the present application provides a pneumatic diaphragm pump, which includes an integrated motor body as described in any one of the above embodiments and two auxiliary sleeves as described in any one of the above embodiments, and the two auxiliary sleeves are respectively assembled at both ends of the first air valve hole.

[0023] In some embodiments, the diaphragm pump further includes two first sealing members, which are disposed in a one-to-one correspondence at one end of the airflow reversing hole away from the air valve space.

[0024] In some embodiments, the diaphragm pump further includes two second sealing members, which are disposed at the open ends of the drainage holes in a one-to-one correspondence.

[0025] In some embodiments, the diaphragm pump further includes a third sealing member disposed at an open end of the exhaust space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 It is a schematic diagram of the exploded structure of a split motor body in the prior art; Figure 2 A schematic structural diagram of an integrated motor body provided in an embodiment of the present application; Figure 3 A schematic structural diagram of the integrated motor body provided in an embodiment of the present application when assembled with an auxiliary sleeve and a first sealing member; Figure 4 A schematic side view of the integrated motor body provided in an embodiment of the present application; Figure 5 A schematic structural diagram of the integrated motor body provided in an embodiment of the present application when assembled with a second sealing member and a third sealing member; Figure 6 for Figure 5 A schematic cross-sectional view of the integrated motor body shown; Figure 7 for Figure 5 Another cross-sectional schematic diagram of the integrated motor body shown; Figure 8 A schematic structural diagram of the auxiliary sleeve provided in an embodiment of the present application; Figure 9 A partial structural cross-sectional view of the auxiliary sleeve provided in an embodiment of the present application when assembled on an integrated motor body; Figure 10 A schematic flow chart of a method for manufacturing an integrated motor body according to an embodiment of the present application; Figure 11 This is a schematic structural diagram of the pneumatic diaphragm pump provided in an embodiment of the present application.

[0028] Among them, the reference numerals in the figures are: 1000, pneumatic diaphragm pump; 100, integrated motor body; 10, intermediate body; 20, diaphragm row portion; 110, side surface; 1101, first air valve hole; 1102, air flow reversing hole; 1103, diaphragm ventilation hole; 1104, second air valve hole; 1105, central axis hole; 120, air valve space; 1201, reversing air supply groove; 1202, diaphragm air supply groove; 130, peripheral surface; 140, drainage hole; 150, boss; 160, exhaust space; 170, exhaust port; 1801, first closure member; 1802, second closure member; 1803, third closure member; 20 0. Split motor body; 210. Intermediate body; 2101. First air valve hole'; 2102. Air flow reversing hole'; 2103. Diaphragm ventilation hole'; 2104. Second air valve hole'; 2105. Central axis hole'; 2106. Exhaust port'; 2107. Drainage hole'; 2201. Left diaphragm row; 2202. Right diaphragm row; 230. Intermediate body gasket; 240. Air outlet pressure cover; 300. Auxiliary sleeve; 310. Sleeve body; 3101. Outer circular groove; 3102. Drainage groove; 3103. First sealing groove; 3104. Hollow space; 320. Cover body; 3201. Second sealing groove. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0031] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 cannot be understood as a limitation on this application.

[0033] 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 defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0034] In this application, "and / or" is simply a way to describe the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0035] It should be noted that, in this application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example" is intended to present related concepts in a concrete way, meaning that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] An air-operated diaphragm pump is a device that transports fluid by controlling the reciprocating motion of the diaphragm to change the volume of the chamber.

[0037] The pneumatic diaphragm pump in the prior art adopts a split design, which requires multiple parts and corresponding seals to be assembled and formed to form multiple chambers. The pneumatic diaphragm pump of such a design requires high processing precision and multiple seals to ensure the sealing of each chamber, and the various parts of its main body are usually made of plastic, which is easy to deform under high pressure. When the parts or seals are worn or deformed during use, the airtightness of each chamber will not be maintained, resulting in poor stability of the quality of the finished product and failure to meet the needs.

[0038] For example, Figure 1 As shown, the pneumatic diaphragm pump in the prior art, taking the pneumatic diaphragm pump model QBK-15 as an example, the motor of the pneumatic diaphragm pump includes a split motor body 200, an air valve accessory arranged on the split motor body 200, and two diaphragms, wherein the split motor body 200 generally includes an intermediate body 210, two intermediate body gaskets 230, a left diaphragm row 2201, a right diaphragm row 2202, an air outlet pressure cover 240, and a pressure cover sealing ring. The left diaphragm row 2201 and the right diaphragm row 2202 are respectively installed on the opposite sides of the intermediate body 210 through an intermediate body gasket 230. The left diaphragm row 2201 and the right diaphragm row 2202 are respectively used to install a diaphragm. The air outlet pressure cover 240 is installed in the air outlet chamber of the intermediate body 210 through the pressure cover sealing ring. Therefore, the split motor body needs to be formed by assembling the above-mentioned multiple components, wherein the material of the main part of the split motor body is generally plastic. This structure requires high precision components, involves many installation steps, and is somewhat difficult. It also places relatively high demands on raw materials and the injection molding process. Furthermore, due to the characteristics of plastic, components are susceptible to deformation under high pressure, resulting in poor sealing at the connection between the intermediate body and the diaphragm row, leading to air leakage. Once air leakage occurs, the pneumatic diaphragm pump's pump body cannot maintain a high pressure state, thus affecting the normal operation of the pump body and affecting its use.

[0039] As diaphragm pumps continue to expand their applications, demand for them (particularly the QBK-15 series) in high-pressure applications is increasing. However, existing pneumatic diaphragm pumps, due to the aforementioned issues, struggle to operate properly in these applications. To address this, the inventors investigated an improvement, manufacturing the components of the split motor body using aluminum alloy molds. This meant changing the material while maintaining the motor body structure. However, this design increased material costs without significantly improving the structure or functionality, resulting in no significant improvement in performance in high-pressure applications. To further optimize the existing split motor body structure, the design required not only considering material replacement but also addressing structural issues.

[0040] Based on this, in order to improve the technical problem in the related art that the split motor body of the pneumatic diaphragm pump requires the assembly of multiple parts, resulting in reduced stability of the finished product quality, the embodiments of the present application provide the following solution.

[0041] Please also refer to Figures 2 to 7 The embodiment of the present application provides an integrated motor body 100, which is applied to a pneumatic diaphragm pump 1000. The integrated motor body 100 is an integrated metal motor body. The integrated motor body 100 has two side surfaces 110 arranged opposite to each other. The side surfaces 110 are used to face the diaphragm of the pneumatic diaphragm pump 1000, that is, each side surface 110 is used to face the diaphragm on the same side. An air valve space 120 and a first air valve hole 1101 are provided inside the integrated motor body 100. The air valve space 120 is located between the two side surfaces 110. The first air valve hole 1101 passes through the air valve space 120, and the opposite ends of the first air valve hole 1101 pass through the two side surfaces 110 respectively. An air flow reversing hole 1102 connected to the air valve space 120 is provided on each side surface 110. The air flow reversing hole 1102 is spaced apart from the first air valve hole 1101. Two drainage holes 140 are further defined inside the integrated motor body 100 . The drainage holes 140 do not penetrate the side surface 110 . The drainage holes 140 connect the adjacent airflow reversing holes 1102 to the first air valve hole 1101 in a one-to-one correspondence.

[0042] It is understood that the integrated motor body 100 is the main structure of the motor portion of the pneumatic diaphragm pump and is an integrated structure, rather than a split structure or a combined structure (a split structure or a combined structure requires at least two parts to be assembled, connected, or installed). The integrated motor body 100 can be obtained using various integrated molding methods, such as casting (such as sand casting, die casting, etc.), forging, powder metallurgy, or powder sintering, but is not limited to these. It should be noted that the integrated molding method is not limited to a single-step molding process, and machining of the structure after integrated molding should be allowed, as long as the final integrated motor body is an integrated structure rather than a split structure. The material of the integrated motor body 100 can be a variety of metal materials, such as aluminum, aluminum alloy, copper, copper alloy, or iron, but is not limited to these.

[0043] Side surfaces 110 are opposite sides of the integrated motor body 100. Side surfaces 110 can be flat, or in some cases, curved, but are not limited thereto. Side surfaces 110 can also be considered the inner bottom surface or inner bottom wall of the diaphragm row portion 20, described below. Side surfaces 110, together with the inner sidewalls of the diaphragm row portion 20, can form a space for accommodating the diaphragm of the pneumatic diaphragm pump. Side surfaces 110, the inner sidewalls of the diaphragm row portion 20, and the diaphragms together form a diaphragm space. Side surfaces 110 oppose the diaphragms and help define the diaphragm space.

[0044] The valve space 120 is a space for distributing compressed gas through various gas flow channels. The valve space 120 can be connected to a gas source device outside the integrated motor body 100 through a unidirectional or bidirectional pipe joint, but is not limited thereto.

[0045] The first air valve hole 1101 is a space for accommodating a first air valve assembly. The first air valve assembly may include two pistons and a slider, one located at each end of the first air valve hole 1101. The slider is located within the first air valve hole 1101. The first air valve hole 1101 is connected to the air valve space 120, allowing airflow to drive the pistons to move, which in turn pushes the sliders, distributing air to the different diaphragm spaces. The diaphragm space is the space formed by the side surface 110 and the opposing diaphragms. Optionally, the position and function of the first air valve hole 1101 in the integrated motor body 100 can be identical to the position and function of the first air valve hole ' in the split motor body 200, which accommodates the first air valve assembly. This allows the existing first air valve assembly in the split motor body 200 to be directly compatible with the integrated motor body 100. This means that the model of the first air valve assembly does not need to be changed, and accessories can be used interchangeably, which helps maintain the compatibility of the integrated motor body with existing accessories.

[0046] The valve space 120 can also be used to house a second valve assembly, which includes a slider and a valve stem. The valve stem is inserted into the integrated motor body 100. The ends of the valve stem are respectively designed to abut the two diaphragms and reciprocate with the two diaphragms to drive the slider's reciprocating movement. The ends of the second valve assembly are respectively inserted into the ends of a second valve hole 1104 in the integrated motor body 100 and protrude from the ends of the second valve hole 1104. The second valve hole 1104 extends through the valve space 120, and the opposite ends of the second valve hole 1104 extend through the two side surfaces 110. Optionally, the position and function of the second air valve hole 1104 on the integrated motor body 100 can be the same as the position and function of the second air valve hole '2104 in the split motor body 200 for accommodating the second air valve assembly, so that the second air valve assembly in the existing split motor body 200 can be directly applied to the integrated motor body 100, that is, the model of the second air valve assembly does not need to be changed, and the accessories can be universal, which is conducive to maintaining the compatibility of the integrated motor body 100 with existing accessories.

[0047] Airflow reversing hole 1102 is used to alternately open and close the airflow according to the position of the slider in the second air valve assembly to change the direction of the airflow, allowing the airflow to sequentially enter the first air valve hole 1101 and alternately drive the two pistons. Optionally, the position and function of airflow reversing hole 1102 in the integrated motor body 100 can be the same as the position and function of airflow reversing hole 2102 in the split motor body 200, which is used to alternately open and close the airflow according to the position of the slider in the second air valve assembly to change the direction of the airflow, allowing the airflow to sequentially enter the first air valve hole 2101. This helps maintain the similarity in appearance and function between the integrated motor body 100 and the existing split motor body 200, making it easier for users to quickly understand and use the integrated motor body 100.

[0048] The flow holes 140 are used to connect adjacent airflow reversing holes 1102 to the first air valve hole 1101 in a one-to-one correspondence. This allows the position of the slider of the first air valve assembly to be changed according to the position of the slider of the second air valve assembly, thereby alternately distributing air to different diaphragm spaces formed by the side surfaces 110 and the diaphragm. Optionally, the position and function of the flow holes 140 in the integrated motor body 100 can be identical to the position and function of the flow holes 2107 in the split motor body 200, which connect the airflow reversing holes 2102 to the first air valve hole 2101. This helps maintain the similarity in appearance and function between the integrated motor body 100 and the existing split motor body 200, making it easier for users to quickly understand and use the integrated motor body 100.

[0049] In the prior art, for example, the split motor body 200 used in the pneumatic diaphragm pumps of the QBK series and QBY series, after processing and forming, only has an air valve space and an unsealed first air valve hole '2101', an air flow reversing hole '2102', a diaphragm ventilation hole '2103', a second air valve hole '2104', a drainage hole '2107' that is openly provided through the side of the split motor body, a central axis hole '2105' and an exhaust port '2106'. The integrated motor body 100 contains channels with the same functions as these unsealed channels. In the split motor body 200, two intermediate gaskets 230, a left diaphragm row 2201 and a right diaphragm row 2202 need to be installed on both sides to clamp the outlet pressure cover 240, thereby fixing the outlet pressure cover 240 and forming an exhaust space. In addition, the intermediate gasket 230 and the pressure cover sealing ring need to cooperate to seal each channel. The pneumatic diaphragm pump designed in this way requires multiple assembly processes to form a complete air circuit system. With each additional assembly, the number of sealing surfaces that need to be finely processed and the number of seals that need to be used increase accordingly, resulting in an increase in the assembly workload, a decrease in assembly efficiency, and a more difficult to maintain quality stability of the finished product. In subsequent use, it is also necessary to frequently maintain the sealing surfaces and replace the seals to maintain the airtightness of each chamber, resulting in an increase in maintenance workload and an increase in maintenance costs.

[0050] As can be seen from the above, the integrated motor body 100 provided in the embodiment of the present application is an integrated metal motor body, having two oppositely arranged side surfaces 110. An air valve space 120 and a first air valve hole 1101 are provided inside the integrated motor body 100, and the air valve space 120 is located between the two side surfaces 110; the first air valve hole 1101 penetrates the air valve space 120, and the opposite ends of the first air valve hole 1101 penetrate the two side surfaces 110 respectively; each side surface 110 is provided with an air flow reversing hole 1102 connected to the air valve space 120; the air flow reversing hole 1102 is spaced apart from the first air valve hole 1101; the integrated motor body 100 is further provided with two drainage holes 140, which do not penetrate the side surfaces 110; the drainage holes 140 connect adjacent air flow reversing holes 1102 to the first air valve hole 1101 in a one-to-one correspondence.

[0051] The present application changes the open design of the split motor body 200, in which the intermediate gasket 230 and the seal are assembled on the split motor body 200 to form a complete drainage hole '2107. By redesigning the direction of the drainage hole 140 in the integrated motor body 100, the drainage hole 140 is located inside the integrated motor body 100 and does not penetrate the side surface 110. Therefore, there is no need to add additional parts to form the drainage hole 140. The drainage hole 140 can still achieve the function of guiding the airflow in the airflow reversing hole 1102 to the first air valve hole 1101. In this way, by changing the orientation of the drainage hole 140, the required parts are reduced while maintaining its function. While reducing the number of parts constituting the motor body, the airflow is directed in a certain direction within the integrated motor body 100, and the connection points for the assembly of parts are reduced, thereby effectively improving the strength of the integrated motor body 100, and contributing to improving the reliability and stability of the finished product, improving the durability of the integrated motor body 100, being able to adapt to various operating pressures, being able to work under high pressure for a long time, reducing the need for maintenance work, reducing the need for assembly process, and improving assembly work efficiency.

[0052] In some embodiments, see Figures 2 to 7 The integrated motor body 100 comprises a central body 10 and two diaphragm rows 20, one located on opposite sides of the central body 210. The central body 10 and the two diaphragm rows 20 form a one-piece structure. Each diaphragm row 20 has a side surface 110 facing away from the other diaphragm row 20. The interior of the central body 10 is provided with an air valve space 120, a first air valve hole 1101, and a drainage hole 140.

[0053] With such a configuration, the integrated motor body 100 integrates the intermediate body 210, the left diaphragm row 2201, and the right diaphragm row 2202 of the split motor body 200 into one, and determines the airflow direction within the integrated motor body 100, which can effectively reduce the number of steps required for assembly, improve the work efficiency of assembling the integrated motor body 100, and make the integrated motor body 100 convenient for the overall design, integration, and assembly of the diaphragm pump.

[0054] Optionally, in some embodiments, a groove is provided on the side along the axial direction of the first air valve hole 1101, and the groove is used to assemble the auxiliary sleeve 300 that closes the end of the first air valve hole 1101 and guides the gas in the drainage hole 140 to the end of the first air valve hole 1101.

[0055] It can be understood that the groove is a structure for accommodating the auxiliary sleeve 300, and the diameter of the groove is larger than the diameter of the first valve hole 1101. In this way, the groove for accommodating the auxiliary sleeve 300 is formed on the integrated motor body 100 at one time, and no subsequent processing is required. This can effectively reduce the process of producing the integrated motor body 100, improve the work efficiency of assembling the integrated motor body 100, and make the integrated motor body 100 convenient for the overall design, integration and assembly of the diaphragm pump. In some embodiments, the minimum distance between the axis of the drainage hole 140 and the side surface 110 is greater than the radius of the drainage hole 140 .

[0056] It can be understood that when the minimum distance between the axis of the drainage hole 140 and the side surface 110 is greater than the radius of the drainage hole 140 , the drainage hole 140 does not penetrate the side surface 110 .

[0057] With such a configuration, by preventing the drainage hole 140 from penetrating the side surface 110 , when assembling the integrated motor body 100 to the pneumatic diaphragm pump, there is no need to add additional components to seal the drainage hole 140 and the diaphragm space, thereby reducing the requirements for the processing and assembly processes and improving the assembly work efficiency.

[0058] In some embodiments, see Figures 2 to 5 The integrated motor body 100 further has a peripheral surface 130 ; the peripheral surface 130 is located between the two side surfaces 110 ; and the first end of the drainage hole 140 passes through the peripheral surface 130 .

[0059] It can be understood that in the present application, in order to integrate the intermediate body 210, the left diaphragm row 2201, the right diaphragm row, and the air outlet pressure cover 240 into one, and obtain an integrated motor body 100, and directly form the valve space 120, the first valve hole 1101, the air flow reversing hole 1102 and the drainage hole 140 in the integrated motor body 100, while keeping the appearance dimensions of the integrated motor body 100 the same as the appearance dimensions of the existing split motor body 200, so that the valve accessories, diaphragms and other accessories can be used universally, it is necessary to change the communication method of the first valve hole 1101 and the air flow reversing hole 1102. During the development process, it was discovered that if the valve space 120, first valve hole 1101, and airflow reversing hole 1102 were connected in the same manner as for the split-type starter motor body while maintaining their original positions, this would result in the hole penetrating the side surface 110, necessitating the installation of gaskets and seals for proper sealing. Therefore, the drainage hole 140 needs to extend from the peripheral surface 130 into the interior of the integrated motor body 100 and not penetrate the side surface 110 of the integrated motor body 100. The peripheral surface 130 is the outer surface between the two side surfaces 110 of the integrated motor body 100. The peripheral surface 130 can be a circular surface 130, an irregular folded surface, or a curved surface, but is not limited thereto.

[0060] With this configuration, the drainage hole 140 penetrates the peripheral surface 130 , which facilitates the molding of the drainage hole 140 , improves the molding efficiency of the integrated motor body 100 , and reduces the production cost of the integrated motor body 100 .

[0061] In some embodiments, see Figure 2 and Figure 5 Two bosses 150 are formed on the peripheral surface 130 ; the first ends of the drainage holes 140 pass through the bosses 150 in a one-to-one correspondence.

[0062] It can be understood that the end surface of the boss 150 is a plane, and the axis of the boss 150 is colinear with the drainage hole 140 .

[0063] In this way, two bosses 150 are formed on the circumferential surface 130, and the first end of the drainage hole 140 passes through the boss 150 in a one-to-one correspondence. The boss 150 can position and orient the processing and subsequent assembly of the drainage hole 140, reduce processing errors, improve the accuracy and efficiency of processing and assembly, and strengthen the structure of the hole wall at the end of the drainage hole 140, effectively improving the quality of the finished product.

[0064] In some embodiments, an internal thread is provided on the hole wall of the first end of the drainage hole 140 , and the internal thread is at least partially located inside the boss 150 .

[0065] It can be understood that an internal thread is provided on the hole wall of the first end of the drainage hole 140, and the first end of the drainage hole 140 can be closed or its function expanded by installing an accessory with an external thread. For example, a bolt can be installed to close it, or a pressure gauge can be connected to monitor the air pressure status in the drainage hole 140, but it is not limited to this.

[0066] In this way, by providing a thread on the hole wall of the first end of the drainage hole 140, it is beneficial to quickly and effectively close the first end of the drainage hole 140 by installing accessories with external threads, reducing the cost of spare parts and obtaining a good sealing effect. At the same time, it can be quickly installed and disassembled, which is beneficial to improving the efficiency of maintenance work.

[0067] In some embodiments, see Figures 2 to 7 The integrated motor body 100 further includes a second valve hole 1104 therein. The second valve hole 1104 extends through the valve space 120 , and opposite ends of the second valve hole 1104 extend through the two side surfaces 110 , respectively. The second valve hole 1104 is spaced apart from the first valve hole 1101 . Two reversing gas delivery grooves 1201 are formed on the bottom wall of the gas valve space 120; the two reversing gas delivery grooves 1201 are spaced apart along the axis of the second gas valve hole 1104; the two reversing gas delivery grooves 1201 are connected to the two airflow reversing holes 1102 in a one-to-one correspondence; Each side surface 110 is provided with a diaphragm ventilation hole 1103 connected to the air valve space 120, and the diaphragm ventilation hole 1103 is spaced apart from the air flow reversing hole 1102. Two diaphragm air supply grooves 1202 are formed on the bottom wall of the air valve space 120. The two diaphragm air supply grooves 1202 are spaced apart along the axis of the first air valve hole 1101, and the two diaphragm air supply grooves 1202 are connected to the two diaphragm ventilation holes 1103 in a one-to-one correspondence. The integrated motor body 100 is also provided with an exhaust space 160 and an exhaust port 170. The exhaust space 160 is connected to the two reversing gas supply grooves 1201 and the two diaphragm gas supply grooves 1202. The exhaust space 160 is connected to the outside of the integrated motor body 100. The exhaust port 170 is connected to the exhaust space 160. One end of the exhaust port 170 is connected to the outside of the integrated motor body 100.

[0068] It can be understood that the second air valve holes 1104 are used to accommodate the ends of the valve stem of the second air valve assembly, thereby determining the movement direction of the second air valve assembly. The location of the second air valve holes 1104 on the integrated motor body 100 is the same as the location of the second air valve holes 2104 in the split motor body 200, which are used to accommodate the second air valve assembly. This allows the second air valve assembly in the existing split motor body 200 to be directly used in the integrated motor body 100.

[0069] The reversing air supply groove 1201 is used to connect the air valve space 120 to the two reversing airflow reversing holes 1102. The diaphragm air exchange hole 1103 connects the air valve space 120 to the diaphragm space formed by the diaphragm row portion 20 and the diaphragm. The location and function of the diaphragm air exchange hole 1103 on the integrated motor body 100 can be the same as the location and function of the diaphragm air exchange hole 2103 in the split motor body 200, which connects the air valve space to the two diaphragm spaces. This helps maintain the similarity in appearance and function between the integrated motor body 100 and the existing split motor body 200, making it easier for users to quickly understand and use the integrated motor body 100. The diaphragm air supply groove 1202 connects the air valve space 120 to the two diaphragm air exchange holes 1103. The exhaust space 160 is connected to the reversing air supply groove 1201 and the diaphragm air supply groove 1202.

[0070] Exhaust port 170 is a structure for discharging gas within exhaust space 160 to the exterior of integrated motor body 100. The location and function of exhaust port 170 on integrated motor body 100 can be identical to the location and function of exhaust port 2106 in split motor body 200, which is used to discharge gas within split motor body 200 to the exterior of split motor body 200. This helps maintain the similarity in appearance and function between integrated motor body 100 and existing split motor bodies 200, making it easier for users to quickly understand and use the integrated motor body 100.

[0071] In the integrated motor body 100, the airflow enters the valve space 120, and under the action of the second air valve assembly, passes through a reversing air delivery groove 1201 and enters an airflow reversing hole 1102, and enters the end of the first air valve hole 1101 through the drainage hole 140 from the airflow reversing hole 1102, pushing the first air valve assembly to move. The first air valve assembly allows the airflow to enter the diaphragm air delivery groove 1202, and then enters a diaphragm space near the diaphragm air delivery hole, causing one diaphragm space to expand and the other diaphragm space to shrink. The first air valve assembly pushes the gas at the other end from the first air valve hole 1101 into the airflow reversing hole 1102 on the other side. The gas passes through the other side. The airflow reversing hole 1102 enters the reversing gas delivery groove 1201. At this time, the second gas valve assembly closes the connection between the reversing gas delivery groove 1201 on the other side and the gas valve space 120, allowing the gas to enter the exhaust space 160 and be discharged to the outside of the integrated motor body 100 through the exhaust port 170. At the same time, the gas in the other diaphragm space is discharged to the diaphragm gas delivery groove 1202 on the other side through the diaphragm gas delivery hole on the other side. The first gas valve assembly closes the connection between the diaphragm gas delivery groove 1202 on the other side and the gas valve space 120, allowing the gas to enter the exhaust space 160 through the diaphragm gas delivery groove 1202 and then be discharged to the outside of the integrated motor body 100 through the exhaust port 170.

[0072] With this arrangement, a second air valve hole 1104 is formed in the integrated motor body 100, which is connected to the reversing air supply groove 1201, the air flow reversing hole 1102, the diaphragm air supply groove 1202, and the diaphragm air supply hole of the air valve space 120, so that the air flow flows in an orderly manner in the integrated motor body 100, pushing the first air valve assembly to move back and forth, causing the diaphragm space to expand and contract alternately. Compared with the split motor body 200, there is no need to add additional components to seal and shape the air flow channel, so that the air flow has a fixed direction in the integrated motor body 100, reducing the connection points for parts assembly, effectively improving the strength of the integrated motor body 100, and contributing to improving the reliability and stability of the finished product, reducing the requirements for assembly process, and improving assembly work efficiency.

[0073] In some embodiments, see Figures 3 to 7 The interior of the integrated motor body 100 is further provided with a central axis hole 1105, and the opposite ends of the central axis hole 1105 respectively pass through the centers of the two side surfaces 110; the central axis hole 1105, the first air valve hole 1101, the second air valve hole 1104, the air flow reversing hole 1102 and the diaphragm ventilation hole 1103 are spaced apart from each other.

[0074] It can be understood that the center axis hole 1105 is a structure used to determine the direction of movement of the center axis. The center axis is a component used to connect two diaphragms to enable the two diaphragms to be linked. The position of the center axis hole 1105 on the integrated motor body 100 is the same as the position of the center axis hole '2105 on the split motor body 200, so that the center axis of the existing split diaphragm pump can be directly applied to the integrated motor body 100. The position and function of the center axis hole 1105 on the integrated motor body 100 can be the same as the position and function of the center axis hole '2105 in the split motor body 200 for accommodating the center axis, so that the center axis in the existing split motor body 200 can be directly applied to the integrated motor body 100, that is, the model of the center axis does not need to be changed, and the accessories can be universal, which is conducive to maintaining the compatibility of the integrated motor body 100 with existing accessories. In this way, a central axis hole 1105 is provided on the integrated motor body 100 to determine the position of the central axis so that the existing central axis can be directly applied to the integrated motor body 100, thereby improving the adaptability and application flexibility of the integrated motor body 100, eliminating the need for additional design accessories, and improving production and assembly efficiency.

[0075] See also Figure 10 The present application also provides a method for manufacturing an integrated motor body 100 , which is used to manufacture the integrated motor body 100 according to any one of the above embodiments. The method includes: A one-piece motor body base is provided. The one-piece motor body base is a one-piece metal motor body base. The one-piece motor body base has two opposing side surfaces 110. An air valve space 120 and a first air valve hole 1101 are defined within the one-piece motor body base. The air valve space 120 is located between the two side surfaces 110. The first air valve hole 1101 extends through the air valve space 120, and opposite ends of the first air valve hole 1101 extend through the two side surfaces 110. Each side surface 110 is provided with an airflow reversing hole 1102 connected to the air valve space 120. The airflow reversing hole 1102 is spaced apart from the first air valve hole 1101. The one-piece motor body base further has a peripheral surface 130 located between the two side surfaces 110. Two drainage holes 140 are provided on the peripheral surface 130 ; the drainage holes 140 do not penetrate the side surface 110 ; the drainage holes 140 connect the adjacent airflow reversing holes 1102 to the first air valve hole 1101 in a one-to-one correspondence.

[0076] It is understood that the integrated motor body base is a component having the basic physical structure of the integrated motor body 100 obtained through integral molding. The integrated motor body base is further processed to obtain the integrated motor body 100. The integrated motor body base can be obtained through various integral molding methods, such as sand casting or die casting, but are not limited to these. The drainage hole 140 can be formed through various hole machining methods, such as drilling with a drill press or a hand drill, but are not limited to these.

[0077] With such a configuration, a motor body base having a side surface 110, an air valve space 120, a first air valve hole 1101, and an airflow reversing hole 1102 is obtained through one-piece molding, and the drainage hole 140 is then obtained through a one-step processing step. Compared with obtaining a split motor body 200, multiple processing steps and assembly steps are significantly reduced, and an integrated motor body 100 with better strength and durability is obtained, which effectively improves production efficiency and improves the stability of the quality of the finished product.

[0078] Optionally, the integrated motor body base includes a middle body portion 10 and two diaphragm row portions 20 respectively provided on opposite sides of the middle body 210 .

[0079] In some embodiments, a second air valve hole 1104 is further defined within the integral motor body. The second air valve hole 1104 extends through the air valve space 120 , and opposite ends of the second air valve hole 1104 extend through the two side surfaces 110 , respectively. The second air valve hole 1104 is spaced apart from the first air valve hole 1101 . Two reversing gas delivery grooves 1201 are formed on the bottom wall of the gas valve space 120; the two reversing gas delivery grooves 1201 are spaced apart along the axis of the second gas valve hole 1104; the two reversing gas delivery grooves 1201 are connected to the two airflow reversing holes 1102 in a one-to-one correspondence; Each side surface 110 is provided with a diaphragm ventilation hole 1103 connected to the air valve space 120, and the diaphragm ventilation hole 1103 is spaced apart from the air flow reversing hole 1102. Two diaphragm air supply grooves 1202 are formed on the bottom wall of the air valve space 120. The two diaphragm air supply grooves 1202 are spaced apart along the axis of the first air valve hole 1101, and the two diaphragm air supply grooves 1202 are connected to the two diaphragm ventilation holes 1103 in a one-to-one correspondence. The integrated motor body base is further provided with an exhaust port 170 ; the exhaust port 170 is separated from the air valve space 120 ; The method also includes: An exhaust space 160 is defined on the peripheral surface 130 ; the exhaust space 160 is connected to the two reversing gas supply grooves 1201 and the two diaphragm gas supply grooves 1202 ; and the exhaust space 160 is connected to the outside of the integrated motor body 100 .

[0080] It can be understood that the exhaust space 160 is a space for accommodating gas exhausted from the valve space 120 and the diaphragm space and guiding the gas to the outside of the integrated motor body 100. The exhaust space 160 can be obtained by drilling or boring, but is not limited thereto.

[0081] With such a configuration, the exhaust space 160 is obtained through secondary processing, forming a structure with the same function as the air outlet pressure cover 240 of the split motor body 200, without the need for additional parts for assembly, reducing the assembly process, effectively improving production efficiency, and improving the airtightness and strength of the integrated motor body 100.

[0082] See also Figure 3 ,and Figures 6 to 9 The embodiment of the present application further provides an auxiliary sleeve 300, which is used to be assembled in the first air valve hole 1101 of the integrated motor body 100 as in any of the above embodiments; the auxiliary sleeve 300 includes a sleeve body 310 and a cover body 320, the sleeve body 310 has a hollow space 3104; the hollow space 3104 is used to connect to the first air valve hole 1101; a guide channel is opened on the outer wall of the sleeve body 310, the guide channel is used to connect to the drainage hole 140, and one end of the guide channel passes through the inner wall of one end of the sleeve body 310 to form an opening to connect to one end of the hollow space 3104; the cover body 320 is arranged on one end of the sleeve body 310 close to the opening; the cover body 320 is used to close one end of the sleeve body 310.

[0083] It is understandable that during the research and development process, it was discovered that although the drainage hole 140 has connected the airflow reversing hole 1102 with the first air valve hole 1101, the drainage hole 140 cannot guide the gas to the end of the first air valve hole 1101 away from the air valve space 120, resulting in a shortened stroke of the first air valve assembly when moving in the first air valve hole 1101, and a dead point may appear during the movement, resulting in the pneumatic diaphragm pump 1000 being unable to operate stably. However, since the drainage hole 140 cannot pass through the side 110, and a protruding platform cannot be set on the side 110 to set the drainage hole 140 in the protruding platform, it is necessary to design a structure to guide the gas in the drainage hole 140 to the end of the first air valve hole 1101 away from the air valve space 120. Based on the above ideas, after preliminary design, repeated experimental verification and optimization, a feasible structure of the auxiliary sleeve 300 was obtained.

[0084] Sleeve 310 is a component that communicates with first air valve hole 1101 to accommodate the piston of the first air valve assembly. It slidably engages with the piston to prevent wear on the integrated motor body 100 and guides the gas within the drainage hole 140 to the end of the first air valve hole 1101. Sleeve 310 has a cylindrical structure and can be made of, but is not limited to, POM plastic or wear-resistant rubber.

[0085] The cover 320 may be a circular plate, a square plate or an irregular plate, but is not limited thereto. The cover 320 may be made of the same material as the sleeve 310 .

[0086] In this arrangement, by setting the auxiliary sleeve 300 in the first air valve hole 1101, the piston of the first air valve assembly moves in the sleeve body 310, and the sleeve body 310 guides the air flow of the guide hole 140 to the end of the first air valve hole 1101 through the guide channel, and a cover body 320 is set to close one end of the sleeve body 310, so that the gas can push the piston to move, avoiding a dead point when the piston moves in the first air valve hole 1101, which is beneficial to improving the stability and reliability of the operation of the integrated motor body 100.

[0087] Optionally, a guide groove and a drainage groove 3102 are provided on the outer wall of the sleeve 310, and the guide groove is connected to the drainage hole; the drainage groove 3102 is located on one side of the guide groove; the drainage groove 3102 is connected to the guide groove; the drainage groove 3102 passes through the sleeve 310 and forms an opening on the inner wall of the sleeve 310; the opening is located at one end of the hollow space 3104 close to the cover body 320.

[0088] It can be understood that the drainage groove 3102 is a structure for connecting the guide groove to the hollow space 3104. When the hollow space 3104 is connected to the first air valve hole 1101, the drainage groove 3102 is located on the side of the outer circular groove 3101 away from the air valve space 120.

[0089] So set up, such as Figure 9 The running trajectory of the gas in the airflow reversing hole 1102, the drainage hole 140, the guide channel, the hollow space, and the first air valve hole 1101 is shown. By setting a drainage groove running through the sleeve 310, an opening is formed on the inner wall of the sleeve 310, and the opening is located at one end of the hollow space 3104 close to the cover body 320. This can avoid a dead point when the piston moves in the first air valve hole 1101, which is beneficial to improving the stability and reliability of the operation of the integrated motor body 100.

[0090] Optionally, the guide groove is an outer circular groove 3101 provided on the outer side wall of the sleeve body 310 around the axial direction of the sleeve body 310 .

[0091] It can be understood that the outer circular groove 3101 is a structure for connecting the drainage hole 140 to the drainage groove 3102. The depth of the outer circular groove 3101 is less than the thickness of the sleeve body 310.

[0092] With such a configuration, by providing an outer circular groove 3101 on the outer side wall of the sleeve body 310 around the axial direction of the sleeve body 310, when the auxiliary sleeve 300 rotates to any angle in the groove, the drainage hole 140 can be connected to the outer circular groove 3101, which is conducive to reducing the difficulty of assembling the auxiliary sleeve 300 to the integrated motor body 100, improving the efficiency of assembling the auxiliary sleeve 300 to the integrated motor body 100, and improving the reliability of the auxiliary sleeve 300.

[0093] In some embodiments, see Figure 8 and Figure 9 A first sealing groove 3103 is further formed on the outer wall of the sleeve 310 ; the first sealing groove 3103 is located on the side of the outer circular groove 3101 away from the cover 320 .

[0094] It can be understood that the first sealing groove 3103 is a component used to accommodate a seal to prevent the outer circular groove 3101 from connecting to the first air valve hole 1101. A V-shaped sealing ring, O-ring or other sealing rubber ring can be set in the first sealing groove 3103, but is not limited to this.

[0095] In some embodiments, see Figure 3 and Figure 7 A second sealing groove 3201 is formed on the end surface of the cover body 320 facing the sleeve body 310 , and the inner diameter of the second sealing groove 3201 is equal to the diameter of the outer wall of the sleeve body 310 .

[0096] It can be understood that the second sealing groove 3201 is a structure for accommodating a sealing member to close the end of the first valve hole 1101 , and the same sealing member as that in the first sealing groove 3103 can be set in the second sealing groove 3201 .

[0097] In this arrangement, a first sealing groove 3103 is opened on the outer wall of the sleeve body 310 away from the side of the cover body 320, and a sealing member is arranged in the first sealing groove 3103 to prevent the outer circular groove 3101 from being connected to the first air valve hole 1101, and a second sealing groove 3201 is opened on the end face of the cover body 320 facing the sleeve body 310 to prevent a gap between the outer side surface 110 of the sleeve body 310 and the inner side surface 110 of the first air valve hole 1101, which causes gas leakage, thereby effectively improving the airtightness of the auxiliary sleeve 300, allowing the gas to flow according to the preset air path of the auxiliary sleeve 300, and improving the reliability of the auxiliary sleeve 300.

[0098] See also Figure 11 The embodiment of the present application also provides a pneumatic diaphragm pump 1000, which includes an integrated motor body 100 as in any one of the above embodiments and two auxiliary sleeves 300 as in any one of the above embodiments, and the two auxiliary sleeves 300 are respectively assembled at both ends of the first air valve hole 1101.

[0099] With this arrangement, the auxiliary sleeve 300 can be detachably assembled in the first valve hole 1101, replacing the integrated motor body 100 to rub against the piston. It can be disassembled and replaced after damage, which can reduce the difficulty of maintenance work and extend the service life of the integrated motor body 100.

[0100] In some embodiments, the diaphragm pump further includes two first sealing members 1801 , and the first sealing members 1801 are disposed in a one-to-one correspondence at one end of the airflow reversing hole 1102 away from the air valve space 120 .

[0101] It can be understood that the first closing member 1801 is a component used to close the airflow reversing hole 1102 so that the airflow reversing hole 1102 can only be connected to the drainage hole 140 and the air valve space 120. The first closing member 1801 can be provided with an internal thread on the hole wall of the airflow reversing hole 1102 at one end away from the air valve space 120. The first closing member 1801 can be set in the airflow reversing hole 1102 through an external thread to close the end of the airflow reversing hole 1102, or the first closing member 1801 is filled in the end of the airflow reversing hole 1102 through interference fit, but is not limited to this.

[0102] In this arrangement, the airflow reversing hole 1102 is closed by the first closing member 1801 so that the gas can only pass through the valve space 120, the airflow reversing hole 1102 and the drainage hole 140 in the forward or reverse direction, which effectively improves the working stability of the diaphragm pump, extends the service life of the diaphragm pump, and reduces the cost required for maintenance.

[0103] In some embodiments, the diaphragm pump further includes two second sealing members 1802 , which are disposed at the open ends of the drainage holes 140 in a one-to-one correspondence.

[0104] It is understood that the second sealing member 1802 is used to seal the open end of the drainage hole 140 so that the drainage hole 140 can only communicate with the airflow reversing hole 1102 and the first air valve hole 1101. The second sealing member 1802 can be used to seal the drainage hole 140 in the same manner as the first sealing member 1801.

[0105] In this arrangement, the open end of the drainage hole 140 is closed by the second closing member 1802, so that the gas can only pass through the airflow reversing hole 1102, the drainage hole 140 and the first air valve hole 1101 in the forward or reverse direction, which effectively improves the working stability of the diaphragm pump, extends the service life of the diaphragm pump, and reduces the cost required for maintenance.

[0106] In some embodiments, the diaphragm pump further includes a third sealing member 1803 , which is disposed at the open end of the exhaust space 160 .

[0107] It is understood that third sealing member 1803 is a component used to seal the open end of exhaust space 160, thereby allowing exhaust space 160 to guide the gas output from valve space 120, reversing gas delivery groove 1201, and diaphragm gas delivery groove 1202 to exhaust port 170. Third sealing member 1803 can be sealed with the same method as first sealing member 1801 to seal the open end of exhaust space 160.

[0108] With such a configuration, the open end of the exhaust space 160 is sealed by the third sealing member 1803, so that after the gas is input into the exhaust space 160 from the valve space 120, the reversing gas supply groove 1201 and the diaphragm gas supply groove 1202, it can only be discharged to the outside of the integrated motor body 100 through the exhaust port 170, thereby improving the working stability of the diaphragm pump, extending the service life of the diaphragm pump, and reducing the cost required for maintenance.

[0109] Optionally, the pneumatic diaphragm pump 1000 further includes a first air valve assembly, a second air valve assembly, two pump bodies, and two diaphragms. The first air valve assembly is movably disposed within the air valve space 120, with its ends movably disposed at opposite ends of the first air valve hole 1101 along the axis of the first air valve hole 1101. The second air valve assembly is movably disposed within the air valve space 120, with its ends respectively extending through the two side surfaces 110 of the integrated motor body 100 and abutting the two diaphragms. The two pump bodies are disposed at opposite ends of the integrated motor body 100 and connected to the diaphragm row 20. The inner walls of the pump bodies and the inner walls of the diaphragm row 20 together form the pump body space. The two diaphragms are disposed at opposite ends of the central axis and located within the two pump body spaces, respectively. The diaphragms divide the pump body space into a fluid space and a diaphragm space. The diaphragms can move within the pump body space along the axis of the central axis to change the volume of the fluid space and the diaphragm space. The pump body is provided with a fluid input port and a fluid output port at intervals, and both the fluid input port and the fluid output port are communicated with the fluid space.

[0110] In this configuration, the pneumatic diaphragm pump 1000 using the integrated motor body 100 distributes gas through the first air valve assembly and the second air valve assembly within the integrated motor body 100, thereby alternately expanding and compressing the volumes of the two diaphragm spaces, and then alternately expanding and compressing the volumes of the two fluid spaces, thereby alternately sucking in the fluid from the two fluid input ports and alternately discharging the fluid from the two fluid output ports.

[0111] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An integrated motor body, characterized in that: Applicable to a pneumatic diaphragm pump, the integrated motor body is an integrated metal motor body; the integrated motor body has two oppositely disposed side surfaces, the side surfaces being used to oppose the diaphragm of the pneumatic diaphragm pump; an air valve space and a first air valve hole are provided inside the integrated motor body, the air valve space being located between the two side surfaces; the first air valve hole penetrates the air valve space, and opposite ends of the first air valve hole respectively penetrate the two side surfaces; each of the side surfaces is provided with an airflow reversing hole connected to the air valve space; the airflow reversing hole is spaced apart from the first air valve hole; Two drainage holes are further provided inside the integrated motor body, and the drainage holes do not penetrate the side surface; the drainage holes connect the adjacent airflow reversing holes to the first air valve hole in a one-to-one correspondence.

2. The integrated motor body according to claim 1, wherein: The integrated motor body comprises a middle body portion and two diaphragm row portions respectively provided on opposite sides of the middle body, each diaphragm row portion having a side surface facing away from the other diaphragm row portion; the air valve space, the first air valve hole and the drainage hole are provided inside the middle body portion; and / or The minimum distance between the axis of the drainage hole and the side surface is greater than the radius of the drainage hole; and / or The side surface is provided with a groove along the axis direction of the first air valve hole, and the groove is used to assemble an auxiliary sleeve that closes the end of the first air valve hole and guides the gas in the drainage hole to the end of the first air valve hole; and / or The integrated motor body further comprises a peripheral surface; the peripheral surface is located between the two side surfaces; and the first end of the drainage hole passes through the peripheral surface.

3. The integrated motor body according to claim 2, wherein: Two bosses are formed on the circumferential surface; the first ends of the drainage holes pass through the bosses in a one-to-one correspondence; and / or An internal thread is provided on the hole wall of the first end of the drainage hole, and at least a portion of the internal thread is located inside the boss.

4. The integrated motor body according to any one of claims 1 to 3, characterized in that: A second air valve hole is further provided inside the integrated motor body. The second air valve hole penetrates the air valve space, and opposite ends of the second air valve hole penetrate the two side surfaces respectively. The second air valve hole is spaced apart from the first air valve hole. Two reversing gas delivery grooves are provided on the bottom wall of the gas valve space; The two reversing gas delivery grooves are spaced apart along the axis direction of the second gas valve hole; the two reversing gas delivery grooves are connected to the two airflow reversing holes in a one-to-one correspondence; Each of the side surfaces is provided with a diaphragm ventilation hole connected to the air valve space, and the diaphragm ventilation hole is spaced apart from the air flow reversing hole; two diaphragm air delivery grooves are provided on the bottom wall of the air valve space; the two diaphragm air delivery grooves are spaced apart along the axis direction of the first air valve hole; the two diaphragm air delivery grooves are connected to the two diaphragm ventilation holes in a one-to-one correspondence; The integrated motor body is further provided with an exhaust space and an exhaust port, wherein the exhaust space is connected to the two reversing air supply grooves and the two diaphragm air supply grooves; the exhaust space is connected to the outside of the integrated motor body; the exhaust port is connected to the exhaust space; One end of the exhaust port is connected to the outside of the integrated motor body; and / or A central axis hole is further provided inside the integrated motor body, and the opposite ends of the central axis hole respectively pass through the centers of the two side surfaces; the central axis hole, the first air valve hole, the second air valve hole, the air flow reversing hole and the diaphragm ventilation hole are spaced apart from each other.

5. A method for manufacturing an integrated motor body, characterized in that: For manufacturing the integrated motor body according to any one of claims 1 to 4, the method comprises: An integrated motor body base is provided, wherein the integrated motor body base is an integrated metal motor body base; the integrated motor body base has two oppositely disposed side surfaces, an air valve space and a first air valve hole are provided within the integrated motor body base, and the air valve space is located between the two side surfaces; the first air valve hole extends through the air valve space, and opposite ends of the first air valve hole extend through the two side surfaces, respectively; each of the side surfaces is provided with an airflow reversing hole connected to the air valve space; the airflow reversing hole is spaced apart from the first air valve hole; the integrated motor body base further has a peripheral surface, and the peripheral surface is located between the two side surfaces; Two drainage holes are provided on the peripheral surface; the drainage holes do not penetrate the side surface; the drainage holes connect the adjacent airflow reversing holes to the first air valve hole in a one-to-one correspondence.

6. The method for manufacturing an integrated motor body according to claim 5, wherein: A second air valve hole is further provided inside the integrated motor body base. The second air valve hole penetrates the air valve space, and opposite ends of the second air valve hole penetrate the two side surfaces respectively. The second air valve hole is spaced apart from the first air valve hole. Two reversing gas delivery grooves are provided on the bottom wall of the gas valve space; The two reversing gas delivery grooves are spaced apart along the axis direction of the second gas valve hole; the two reversing gas delivery grooves are connected to the two airflow reversing holes in a one-to-one correspondence; Each of the side surfaces is provided with a diaphragm ventilation hole connected to the air valve space, and the diaphragm ventilation hole is spaced apart from the air flow reversing hole; two diaphragm air delivery grooves are provided on the bottom wall of the air valve space; the two diaphragm air delivery grooves are spaced apart along the axis direction of the first air valve hole; the two diaphragm air delivery grooves are connected to the two diaphragm ventilation holes in a one-to-one correspondence; The integrated motor body base is also provided with an exhaust port; The exhaust port is spaced apart from the air valve; The method further comprises: An exhaust space is provided on the peripheral surface; the exhaust space is communicated with the two reversing air delivery grooves and the two diaphragm air delivery grooves; and the exhaust space is communicated with the outside of the integrated motor body.

7. An auxiliary sleeve, characterized in that: Used to be assembled in the first air valve hole of the integrated motor body according to any one of claims 1 to 4; the auxiliary sleeve comprises: A sleeve body having a hollow space; the hollow space is used to communicate with the first air valve hole; a guide channel is opened on the outer wall of the sleeve body, the guide channel is used to communicate with the drainage hole, and one end of the guide channel passes through the inner wall of one end of the sleeve body to form an opening for communicating with one end of the hollow space; A cover body is provided on one end of the sleeve body close to the opening; the cover body is used to close one end of the sleeve body.

8. The auxiliary sleeve according to claim 7, characterized in that: A guide groove and a drainage groove are provided on the outer wall of the sleeve body, the guide groove is connected to the drainage hole; the drainage groove is located on one side of the guide groove; the drainage groove is connected to the guide groove; The drainage groove passes through the sleeve and forms the opening on the inner wall of the sleeve; the opening is located at one end of the hollow space close to the cover; and / or The guide groove is an outer circular groove provided on the outer side wall of the sleeve around the axis direction of the sleeve; and / or A first sealing groove is further provided on the outer side wall of the sleeve; the first sealing groove is located on the side of the outer circular groove away from the cover body; and / or A second sealing groove is formed on the end surface of the cover body facing the sleeve body, and the inner diameter of the second sealing groove is equal to the diameter of the outer wall of the sleeve body.

9. A pneumatic diaphragm pump, characterized in that: The pneumatic diaphragm pump comprises an integrated motor body according to any one of claims 1 to 4 and two auxiliary sleeves according to any one of claims 7 to 8, wherein the two auxiliary sleeves are respectively assembled at both ends of the first air valve hole.

10. The pneumatic diaphragm pump according to claim 9, wherein: The diaphragm pump further comprises two first sealing members, which are arranged in a one-to-one correspondence at one end of the air flow reversing hole away from the air valve space; and / or The diaphragm pump further comprises two second sealing members, which are disposed at the opening ends of the drainage holes in a one-to-one correspondence; and / or The diaphragm pump further includes a third sealing member, which is disposed at the open end of the exhaust space.

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