Vacuum diaphragm pump with sealing assembly convenient to replace

Abstract

The utility model discloses a vacuum diaphragm pump convenient to replace a sealing component, which belongs to the technical field of diaphragm pumps and comprises a first diaphragm pump shell and a second diaphragm pump shell, sealing shells are mounted on opposite surfaces of the first diaphragm pump shell and the second diaphragm pump shell, and flanges are fixedly connected to the peripheries of the sealing shells. A connecting cylinder is in threaded connection between the two sealing shells, a plurality of rectangular mounting plates are welded to the periphery of the connecting cylinder, a screw rod used for assisting adjustment is mounted between the two mounting plates, one end of the screw rod penetrates through the mounting plates and is connected with an adjusting wheel, and an L-shaped adjusting rod is in threaded connection with the periphery of the screw rod; a positioning ring is fixedly connected to the transverse end of the adjusting rod, connecting pipes are installed on the side faces of the first diaphragm pump shell and the second diaphragm pump shell, and a base is fixedly connected to the bottom ends of the connecting pipes. The vacuum diaphragm pump capable of conveniently replacing the sealing assembly can be quickly mounted and dismounted, so that the replacement process of the sealing assembly is more time-saving and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaphragm pumps, in particular to a vacuum diaphragm pump with a sealing component that is easy to replace. Background Art

[0002] A vacuum diaphragm pump refers to a small instrument for pumping gas, which has an air suction port and an air exhaust port. The reciprocating motion of the internal diaphragm forms a certain negative pressure at the air suction port and a weak positive pressure at the air exhaust port. The working medium is mainly gas. The vacuum diaphragm pump is usually designed with two diaphragm chambers. When disassembling, it is necessary to disassemble the outer shells of the two diaphragm chambers, which makes the replacement process of the sealing assembly time-consuming and labor-intensive. To address this problem, the existing vacuum diaphragm pump installs a detachable connector so that the outer shells of the two vacuum diaphragm chambers can be disassembled independently, greatly increasing the practicality of the device. Although it can make the sealing assembly easier to replace to a certain extent, increasing the practicality of the device, when the outer shell is connected, it needs to be installed through multiple bolts and threaded holes on the side of the flange. When disassembling, multiple bolts need to be removed, which makes the disassembly process of the device time-consuming and labor-intensive.

[0003] After searching, the Chinese patent document (authorization announcement number CN219012828U) discloses a vacuum diaphragm pump that is easy to replace the sealing component, comprising a base, a connecting pipe fixedly provided on the top of the base, a first diaphragm chamber shell fixedly provided on both sides of the inner side of the connecting pipe, a first connecting assembly provided on the sides of the two first diaphragm chamber shells close to each other, a second diaphragm chamber shell provided on the sides of the two first connecting assemblies close to each other, a second connecting assembly provided on the sides of the two second diaphragm chamber shells close to each other, an intermediate body provided on the sides of the two second connecting assemblies close to each other, and a vacuum diaphragm pump that is easy to replace the sealing component, which divides the traditional integrated intermediate body into the second diaphragm chamber shell and the intermediate body. Although this patent can make the sealing component easy to replace to a certain extent and increase the practicality of the device, the shell needs to be installed by multiple bolts matching the threaded holes on the side of the flange when connecting. When disassembling, multiple bolts need to be removed, making the disassembly process of the device more time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum diaphragm pump with an easy-to-replace sealing assembly, so as to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vacuum diaphragm pump that is easy to replace a sealing assembly, comprising a first diaphragm pump housing and a second diaphragm pump housing, sealing shells are installed on opposite surfaces of the first diaphragm pump housing and the second diaphragm pump housing, and the outer periphery of the sealing shell is fixedly connected with a flange, a connecting cylinder is threadedly connected between the two sealing shells, and a plurality of rectangular mounting plates are welded to the outer periphery of the connecting cylinder, a screw for auxiliary adjustment is installed between the two mounting plates, and one end of the screw passes through the mounting plate and is connected to an adjusting wheel, an L-shaped adjusting rod is threadedly connected to the outer periphery of the screw, and a lateral end of the adjusting rod is fixedly connected with a positioning ring, and a plurality of positioning rods are welded to the side of the positioning ring, the outer periphery of the first diaphragm pump housing and the flange are both provided with positioning holes for cooperating with the positioning rods, a connecting pipe is installed on the side of the first diaphragm pump housing and the second diaphragm pump housing, and the bottom end of the connecting pipe is fixedly connected with a base, the bottom end of the base is connected to the adjusting assembly, and an open protective shell is installed on the side of the adjusting assembly, and a processing assembly is installed on the side of the protective shell.

[0006] Preferably, the adjustment assembly includes two screw rods installed on the inner side of the protective shell, a movable block installed on the outer periphery of the two screw rods, and a drive motor installed on the side of the protective shell to provide adjustment power for the screw rods.

[0007] Preferably, the top end of the movable block is hingedly connected to a movable rod via a hinge, and one end of the movable rod away from the movable block is hingedly connected to a base, and the top end of the base is fixedly connected to a bottom plate.

[0008] Preferably, two connecting plates are welded to the top of the bottom plate, and the top of the connecting plates is fixedly connected to a top plate for sealing the protective shell.

[0009] Preferably, the processing component includes two cooling fans embedded in the side of the protective shell, two dustproof nets installed on the side of the protective shell, and an installation box installed on the side of the protective shell.

[0010] Preferably, a limiting plate is welded to the inner side of the installation box, and a guide rod is installed between the limiting plate and the inner wall of the installation box, and an adjustment block is slidably connected to the outer periphery of the guide rod.

[0011] Preferably, a cleaning brush is installed on the side of the adjustment block located outside the installation box, an auxiliary rod is welded to the side of the adjustment block, and a sleeve is installed on the inner side of the installation box.

[0012] Preferably, the inner side of the sleeve is slidably connected to a piston connected to the auxiliary rod, and the side of the sleeve is connected to a diversion pipe through a connecting hose passing through the installation box, and the bottom end of the diversion pipe is connected to a nozzle.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are:

[0014] The vacuum diaphragm pump with easy replacement of sealing components benefits from the design of the adjusting wheel, the adjusting component and the processing component. By rotating different adjusting wheels to drive the screw to rotate, the rotation of the screw can drive the positioning ring on the side of the adjusting rod to adjust, so that the positioning rod on the side of the positioning ring is disengaged from the positioning hole, and the disassembly effect can be achieved by rotating the sealing shell. Compared with the existing device that needs to remove multiple bolts to disassemble and replace the sealing component, the device can be quickly disassembled, making the replacement operation of the sealing component more time-saving and labor-saving, and the design of the adjusting component can assist in the replacement of the sealing component, and the first diaphragm pump housing and the second diaphragm pump housing can be removed from the protective shell, making the disassembly operation more convenient, and the design of the processing component can be cleaned when the dust net is blocked, and the cleaning process effectively prevents dust from floating.

[0015] The vacuum diaphragm pump with easy-to-replace sealing assembly can be quickly installed and disassembled, making the replacement process of the sealing assembly more time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the utility model in a state where the top plate is raised;

[0019] Figure 3 This is a schematic diagram of the connection structure of the base of the utility model;

[0020] Figure 4 This is a partial connection cross-sectional view of the protective shell of the utility model;

[0021] Figure 5 This is a cross-sectional view of the connection of the processing assembly of the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1. Protective shell; 2. Adjustment assembly; 21. Drive motor; 22. Top plate; 23. Connecting plate; 24. Bottom plate; 25. Screw; 26. Auxiliary wheel; 27. Movable block; 28. Movable rod; 3. Processing assembly; 31. Cooling fan; 32. Dust screen; 33. Mounting box; 331. Sleeve; 332. Piston; 333. Auxiliary rod; 334. Guide rod; 335. Limit plate; 34. Adjustment block; 35. Cleaning brush; 36. Diverter pipe; 4. Base; 5. First diaphragm pump housing; 6. Flange; 7. Positioning ring; 8. Connecting pipe; 9. Second diaphragm pump housing; 10. Sealing shell; 11. Mounting plate; 12. Adjustment wheel; 13. Screw; 14. Adjustment rod; 15. Connecting cylinder. DETAILED DESCRIPTION

[0024] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0026] The connection method can be existing methods such as bonding, welding, bolt connection, etc., which shall be based on actual needs. The technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail. However, where appropriate, the technologies, methods and equipment should be regarded as part of the specification, and the proportions of the devices in the drawings are for reference only and can be adjusted to a certain extent according to actual usage.

[0027] Examples, such as Figures 1 to 5As shown, the opposite surfaces of the first diaphragm pump housing 5 and the second diaphragm pump housing 9 are both installed with sealing shells 10. The design of the two sealing shells 10 can seal the first diaphragm pump housing 5 and the second diaphragm pump housing 9, and the outer periphery of the sealing shell 10 is fixedly connected with a flange 6. A connecting cylinder 15 is threadedly connected between the two sealing shells 10. The inner side of the connecting cylinder 15 is designed with a thread. The outer periphery of the sealing shell 10 is provided with a thread for matching the installation of the connecting cylinder 15, and a plurality of rectangular mounting plates 11 are welded to the outer periphery of the connecting cylinder. A screw 13 for auxiliary adjustment is installed between the two mounting plates 11, and one end of the screw 13 passes through the mounting plate 11 and is connected to an adjusting wheel 12. Different sealing shells 10 can be disassembled by rotating different adjusting wheels 12. The outer periphery of the screw 13 An L-shaped adjusting rod 14 is threadedly connected, and the lateral end of the adjusting rod 14 is fixedly connected to a positioning ring 7. A plurality of positioning rods are welded to the side of the positioning ring 7. The design of the positioning rods and the positioning holes can limit the flange 6 and the first diaphragm pump housing 5. The outer periphery of the first diaphragm pump housing 5 and the flange 6 are provided with positioning holes for use with the positioning rods. A connecting pipe 8 is installed on the side of the first diaphragm pump housing 5 and the second diaphragm pump housing 9, and the bottom end of the connecting pipe 8 is fixedly connected to the base 4. The bottom end of the base 4 is connected to the adjusting component 2, and an open protective shell 1 is installed on the side of the adjusting component 2. The design of the protective shell 1 can protect the device and prevent external dust from falling on the device, causing device aging, and a processing component 3 is installed on the side of the protective shell 1.

[0028] The adjustment assembly 2 includes two screw rods 25 installed on the inside of the protective shell 1, a movable block 27 installed on the periphery of the two screw rods 25, and a drive motor 21 installed on the side of the protective shell 1 to provide adjustment power for the screw rods 25. The screw rod 25 is a two-stage design that can drive the two movable blocks 27 to move toward each other, and the adjustment process can drive the device to move out of the protective shell 1, thereby facilitating the replacement of the sealing assembly. The top of the movable block 27 is hingedly connected to a movable rod 28 through a hinge, and the end of the movable rod 28 away from the movable block 27 is hingedly connected to a base The seat and the base are existing mature technologies and can meet the effect of hinged connection. The top of the base is fixedly connected with a bottom plate 24. The midpoints of the two screw rods 25 are installed with auxiliary wheels 26. The two auxiliary wheels 26 are connected by belt transmission. The design of the auxiliary wheels 26 and the belt can ensure that the two screw rods 25 rotate synchronously. Two connecting plates 23 are welded to the top of the bottom plate 24, and the top of the connecting plate 23 is fixedly connected with a top plate 22 for sealing the protective shell 1. The design of the top plate 22 can seal the protective shell 1 to prevent dust from entering.

[0029] The processing component 3 includes two cooling fans 31 embedded in the side of the protective shell 1, two dust screens 32 installed on the side of the protective shell 1, and an installation box 33 installed on the side of the protective shell 1. The design of the cooling fan 31 can assist the components in the protective shell 1 to dissipate heat. A limiting plate 335 is welded on the inner side of the installation box 33, and a guide rod 334 is installed between the limiting plate 335 and the inner wall of the installation box 33. The design of the guide rod 334 can ensure that the adjustment block 34 moves in a directional manner. The outer periphery of the guide rod 334 is slidably connected to the adjustment block 34. A cleaning brush 35 is installed on the side of the adjustment block 34 located outside the installation box 33, and the adjustment block 34 is An auxiliary rod 333 is welded on the side, and a sleeve 331 is installed on the inner side of the installation box 33. The inner side of the sleeve 331 is slidably connected to a piston 332 connected to the auxiliary rod 333, and the side of the sleeve 331 is connected to a diversion pipe 36 through the installation box 33 via a connecting hose. A water inlet pipe connected to the installation box 33 is installed on the top of the sleeve 331. The side of the diversion pipe 36 is fixedly connected to the protective shell 1. The adjustment of the piston 332 can change the pressure of the sleeve 331, thereby squeezing the water stains into the diversion pipe 36. The bottom end of the diversion pipe 36 is connected to a nozzle. The design of the nozzle can prevent dust from floating during the cleaning process.

[0030] The driving motor 21 and the cooling fan 31 are both conventional instruments. Their working principles, sizes and models are irrelevant to the functions of this application, so they will not be described in detail. They are all controlled by a remote control switch. The control method of the present invention is controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail, and the proportions of the drawings are for reference only and can be adjusted to a certain extent according to actual usage.

[0031] How it works

[0032] The vacuum diaphragm pump, which is convenient for replacing the sealing component, starts the heat dissipation fan 31 to dissipate heat in the protective shell 1 according to actual conditions when in use, and when the dust screen 32 needs to be cleaned, the cleaning brush 35 on the side of the adjustment block 34 is driven by pulling the handle to move horizontally, thereby achieving the effect of cleaning the dust screen 32. During the movement of the adjustment block 34, the piston 332 on the side of the auxiliary rod 333 is driven to adjust, so that the water stains in the sleeve 331 can be squeezed into the nozzle at the bottom end of the shunt pipe 36, thereby performing a water spraying operation to prevent dust from floating. When the sealing assembly needs to be replaced, the drive motor 21 is started to drive the two screw rods 25 to rotate. The rotation of the screw rod 25 drives the movable rod 28 at the top of the two movable blocks 27 to adjust, thereby driving the bottom plate 24 and the top plate 22 to move upward. After the adjustment is completed, the different adjusting wheels 12 are rotated to drive the screw rod 13 to rotate. The rotation of the screw 13 can drive the positioning ring 7 on the side of the adjusting rod 14 to adjust, so that the positioning rod on the side of the positioning ring 7 is disengaged from the positioning hole, and the disassembly effect can be achieved by rotating the sealing shell, so that the sealing assembly can be replaced.

[0033] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum diaphragm pump for facilitating replacement of a sealing assembly, comprising a first diaphragm pump housing (5) and a second diaphragm pump housing (9), characterized in that: The opposite surfaces of the first diaphragm pump housing (5) and the second diaphragm pump housing (9) are both installed with sealing shells (10), and the outer periphery of the sealing shell (10) is fixedly connected with a flange (6), a connecting tube (15) is threadedly connected between the two sealing shells (10), and a plurality of rectangular mounting plates (11) are welded to the outer periphery of the connecting tube, a screw rod (13) for auxiliary adjustment is installed between the two mounting plates (11), and one end of the screw rod (13) passes through the mounting plate (11) and is connected with an adjusting wheel (12), the outer periphery of the screw rod (13) is threadedly connected with an L-shaped adjusting rod (14), and the adjusting The lateral end of the rod (14) is fixedly connected to a positioning ring (7), and a plurality of positioning rods are welded to the side of the positioning ring (7). The outer peripheries of the first diaphragm pump housing (5) and the flange (6) are provided with positioning holes for use with the positioning rods. The sides of the first diaphragm pump housing (5) and the second diaphragm pump housing (9) are provided with connecting pipes (8), and the bottom ends of the connecting pipes (8) are fixedly connected to a base (4), the bottom ends of the bases (4) are connected to an adjustment component (2), and an open protective shell (1) is installed on the side of the adjustment component (2), and a processing component (3) is installed on the side of the protective shell (1).

2. A vacuum diaphragm pump for facilitating replacement of sealing components according to claim 1, characterized in that: The adjustment assembly (2) comprises two screw rods (25) mounted on the inner side of the protective shell (1), a movable block (27) mounted on the outer periphery of the two screw rods (25), and a drive motor (21) mounted on the side of the protective shell (1) to provide adjustment power for the screw rods (25).

3. A vacuum diaphragm pump for facilitating replacement of a sealing assembly according to claim 2, characterized in that: The top end of the movable block (27) is hingedly connected to a movable rod (28) via a hinge, and one end of the movable rod (28) away from the movable block (27) is hingedly connected to a base, and the top end of the base is fixedly connected to a bottom plate (24).

4. A vacuum diaphragm pump for facilitating replacement of a sealing assembly according to claim 3, characterized in that: Two connecting plates (23) are welded to the top end of the bottom plate (24), and the top end of the connecting plate (23) is fixedly connected to a top plate (22) for sealing the protective shell (1).

5. The vacuum diaphragm pump for facilitating replacement of sealing components according to claim 1, characterized in that: The processing assembly (3) comprises two cooling fans (31) embedded in the side of the protective shell (1), two dust screens (32) installed on the side of the protective shell (1), and an installation box (33) installed on the side of the protective shell (1).

6. A vacuum diaphragm pump for facilitating replacement of sealing components according to claim 5, characterized in that: A limiting plate (335) is welded on the inner side of the installation box (33), and a guide rod (334) is installed between the limiting plate (335) and the inner wall of the installation box (33), and an adjustment block (34) is slidably connected to the outer periphery of the guide rod (334).

7. A vacuum diaphragm pump for facilitating replacement of a sealing assembly according to claim 6, characterized in that: A cleaning brush (35) is installed on the side of the adjusting block (34) located outside the installation box (33), an auxiliary rod (333) is welded on the side of the adjusting block (34), and a sleeve (331) is installed on the inside of the installation box (33).

8. A vacuum diaphragm pump for facilitating replacement of a sealing assembly according to claim 7, characterized in that: The inner side of the sleeve (331) is slidably connected to a piston (332) connected to an auxiliary rod (333), and the side of the sleeve (331) is connected to a shunt pipe (36) through a connecting hose penetrating the installation box (33), and the bottom end of the shunt pipe (36) is connected to a spray head.

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