Diaphragm pump center body structure capable of being quickly disassembled and assembled

Abstract

The utility model discloses a diaphragm pump center body structure capable of being quickly disassembled and assembled, and belongs to the technical field of diaphragm pumps. A diaphragm pump center body structure capable of being rapidly disassembled and assembled comprises a pump body shell, a center shell is arranged on the pump body shell, the diaphragm pump center body structure further comprises a support fixedly connected to the outer side of the pump body shell, a connecting rod is fixedly connected to the support, and a hemisphere is fixedly connected to the end, close to the center shell, of the connecting rod; the fixed cylinder is fixedly connected with one side, close to the hemisphere, of the central shell, a wedge-shaped block is arranged in the fixed cylinder, the inclined surface of the wedge-shaped block is opposite to the arc-shaped surface of the hemisphere, and a moving part for driving the wedge-shaped block to move is arranged on the fixed cylinder; according to the utility model, the fixed cylinder on the central shell is inserted into the hemispheroid, then the wedge-shaped block is driven to move through the moving part, and the central shell can be quickly disassembled and assembled by taking down the fixed cylinder from the hemispheroid, so that the overhauling or cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a quickly disassemblable and assemblable diaphragm pump central body structure. Background Technique

[0002] A diaphragm pump is a type of pump that uses the reciprocating motion of a diaphragm to transport fluids. It has the advantages of simple structure, corrosion resistance, and the ability to handle viscous and particulate media, so it is widely used in many industrial applications. The working principle of a diaphragm pump is based on the reciprocating motion of the diaphragm to achieve the suction and discharge of fluids. The diaphragm is pushed by the pump's drive system (such as pneumatic, hydraulic, or electric devices) to perform reciprocating motion. The motion of the diaphragm causes the volume of the fluid in the pump chamber to change, thereby creating negative and positive pressures in the pump chamber, prompting the fluid to flow through the inlet and outlet valves of the pump. Valves are provided at the inlet and outlet of the pump to control the inflow and outflow of fluids, ensuring that the fluid flows in the expected direction within the pump body. The central body of a diaphragm pump is one of its key components, responsible for transmitting power to the diaphragm, thereby promoting the transportation of fluids.

[0003] The existing central body is generally fixedly connected to the diaphragm pump through multiple bolts. When it is necessary to repair or clean the components inside the central body, it is necessary to unscrew and install multiple bolts to achieve disassembly and assembly, which is time-consuming and reduces the efficiency of repair or cleaning. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when it is necessary to repair or clean the components inside the central body, it is necessary to unscrew and install multiple bolts to achieve disassembly and assembly, which is time-consuming and reduces the efficiency of repair or cleaning, and to propose a quickly disassemblable and assemblable diaphragm pump central body structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A quickly disassemblable and assemblable diaphragm pump central body structure, including a pump body housing, a central housing is arranged on the pump body housing, and further includes: a bracket fixedly connected to the outside of the pump body housing, wherein a connecting rod is fixedly connected to the bracket, and a hemispherical body is fixedly connected to one end of the connecting rod close to the central housing; a fixed cylinder fixedly connected to one side of the central housing close to the hemispherical body, wherein the diameter of the hemispherical body matches the inner diameter of the fixed cylinder, a wedge block is arranged in the fixed cylinder, the inclined surface of the wedge block faces the arc surface of the hemispherical body, and a moving part for driving the wedge block to move is arranged on the fixed cylinder.

[0007] In order to facilitate the disassembly and assembly of the central housing, preferably, the moving part includes a chute opened on the inner wall of the fixed cylinder, the wedge block is slidably connected to the inner wall of the chute, and a first spring is fixedly connected between the wedge block and the inner wall of the chute.

[0008] To facilitate the disassembly and assembly of the central housing, preferably, an upper boss and a lower boss are slidably connected to the connecting rod. The top of the lower boss is fixedly connected to the bottom of the upper boss. The inclined surface of the upper boss faces the inclined surface of the wedge block. A receiving groove matching the upper boss is formed on one side of the hemisphere close to the upper boss.

[0009] To limit the fixing cylinder, preferably, a limiting rod is slidably installed on the fixing cylinder. A limiting groove is formed on the hemisphere, and the limiting rod is inserted into the inner wall of the limiting groove.

[0010] To further limit the fixing cylinder, a sliding groove is formed inside the fixing cylinder. A ring is fixedly connected to the limiting rod. The ring is slidably connected to the inner wall of the sliding groove. A second spring is fixedly connected between the ring and the inner wall of the sliding groove. One end of the limiting rod close to the hemisphere is arc-shaped.

[0011] To limit the fixing cylinder, preferably, a handle is rotatably installed at one end of the limiting rod extending out of the fixing cylinder. A fixing plate is fixedly connected to the outside of the fixing cylinder. A first clamping groove and a second clamping groove are fixedly connected to the fixing plate. The handle matches both the first clamping groove and the second clamping groove.

[0012] Compared with the prior art, the present utility model provides a quickly disassemblable and assemblable diaphragm pump central body structure, having the following beneficial effects:

[0013] 1. For this quickly disassemblable and assemblable diaphragm pump central body structure, the fixing cylinder on the central housing is inserted onto the hemisphere. When the fixing cylinder contacts the wedge block, it drives the wedge block to move. Then, the driving part of the moving part drives the wedge block to move in the reverse direction and gets stuck on the flat surface of the hemisphere. By driving the wedge block to move in the reverse direction through the moving part again, the fixing cylinder can be removed from the hemisphere, thus quickly disassembling and assembling the central housing, improving the efficiency of maintenance or cleaning.

[0014] 2. For this quickly disassemblable and assemblable diaphragm pump central body structure, when installing the central housing, the hemisphere will drive the limiting rod to slide when it contacts the limiting rod. The limiting rod compresses the second spring through the ring. When the installation of the central housing is completed, the second spring resets to make the limiting rod insert into the limiting groove, which is used to limit the fixing cylinder and improve the installation stability of the central housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric structure schematic diagram of a quickly disassemblable and assemblable diaphragm pump central body structure proposed by the present utility model;

[0016] Figure 2 It is a structure schematic diagram of the fixing cylinder of a quickly disassemblable and assemblable diaphragm pump central body structure proposed by the present utility model;

[0017] Figure 3 Schematic cross-sectional structure of the fixing cylinder of a quickly disassemblable diaphragm pump central body structure proposed by the present utility model Figure 1 ;

[0018] Figure 4 Schematic cross-sectional structure of the fixing cylinder of a quickly disassemblable diaphragm pump central body structure proposed by the present utility model Figure 2 ;

[0019] Figure 5 Schematic diagram of the hemispherical structure of a quickly disassemblable diaphragm pump central body structure proposed by the present utility model.

[0020] In the figure: 1, pump body housing; 201, fixing cylinder; 202, wedge block; 203, chute; 204, first spring; 301, limiting rod; 302, limiting groove; 303, sliding groove; 304, ring; 305, second spring; 4, central housing; 5, bracket; 6, connecting rod; 7, hemispherical body; 8, upper convex platform; 9, lower convex platform; 10, receiving groove; 11, handle; 12, fixing plate; 13, first card slot; 14, second card slot. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] Embodiment:

[0024] Refer to Figures 1 - 5, an embodiment of the present utility model provides a quickly detachable diaphragm pump central body structure, which includes a pump body housing 1, a central housing 4 is arranged on the pump body housing 1, and further includes: a bracket 5, fixedly connected to the outside of the pump body housing 1, wherein a connecting rod 6 is fixedly connected to the bracket 5, and a hemispherical body 7 is fixedly connected to one end of the connecting rod 6 close to the central housing 4; a fixed cylinder 201 fixedly connected to the side of the central housing 4 close to the hemispherical body 7, wherein the diameter of the hemispherical body 7 matches the inner diameter of the fixed cylinder 201, a wedge block 202 is arranged in the fixed cylinder 201, the inclined surface of the wedge block 202 faces the arc surface of the hemispherical body 7, and a moving part for driving the wedge block 202 to move is arranged on the fixed cylinder 201.

[0025] Specifically, insert the fixed cylinder 201 on the central housing 4 onto the hemispherical body 7. When the fixed cylinder 201 contacts the wedge block 202, it drives the wedge block 202 to move. Then, the driving part of the moving part drives the wedge block 202 to move in the reverse direction and get stuck on the flat surface of the hemispherical body 7. By driving the wedge block 202 to move in the reverse direction through the moving part, the fixed cylinder 201 can be removed from the hemispherical body 7, thus quickly disassembling and assembling the central housing 4 and improving the efficiency of maintenance or cleaning.

[0026] The moving part includes a chute 203 opened on the inner wall of the fixed cylinder 201. The wedge block 202 is slidably connected to the inner wall of the chute 203, and a first spring 204 is fixedly connected between the wedge block 202 and the inner wall of the chute 203.

[0027] Specifically, during installation, when the hemispherical body 7 contacts the wedge block 202, it drives the wedge block 202 to slide into the chute 203 and compress the first spring 204. After the hemispherical body 7 leaves the wedge block 202, the first spring 204 resets, causing the wedge block 202 to get stuck on the hemispherical body 7.

[0028] An upper convex platform 8 and a lower convex platform 9 are slidably connected to the connecting rod 6. The top of the lower convex platform 9 is fixedly connected to the bottom of the upper convex platform 8. The inclined surface of the upper convex platform 8 faces the inclined surface of the wedge block 202, and a receiving groove 10 matching the upper convex platform 8 is opened on one side of the hemispherical body 7 close to the upper convex platform 8.

[0029] Specifically, continue to move the fixed cylinder 201 in the direction of the upper convex platform 8. The fixed cylinder 201 drives the wedge block 202 to move synchronously. After the upper convex platform 8 contacts the wedge block 202, it causes the wedge block 202 to slide into the chute 203 and compress the first spring 204. Then, when the first spring 204 resets, the wedge block 202 contacts the lower convex platform 9. Then, move the fixed cylinder 201 in the reverse direction, causing the wedge block 202 to drive the lower convex platform 9 and the upper convex platform 8 to slide on the connecting rod 6, move the upper convex platform 8 into the receiving groove 10, and continue to move the fixed cylinder 201 to remove the fixed cylinder 201 from the hemispherical body 7.

[0030] A limiting rod 301 is slidably mounted on a fixed cylinder 201. A limiting groove 302 is formed in a hemispherical body 7. The limiting rod 301 is inserted into the inner wall of the limiting groove 302. A sliding groove 303 is formed inside the fixed cylinder 201. A ring 304 is fixedly connected to the limiting rod 301. The ring 304 is slidably connected to the inner wall of the sliding groove 303. A second spring 305 is fixedly connected between the ring 304 and the inner wall of the sliding groove 303. One end of the limiting rod 301 close to the hemispherical body 7 is arc-shaped.

[0031] Specifically, when installing the central housing 4, the hemispherical body 7 will drive the limiting rod 301 to slide after contacting the limiting rod 301. The limiting rod 301 compresses the second spring 305 through the ring 304. After the central housing 4 is installed, the second spring 305 resets to insert the limiting rod 301 into the limiting groove 302 to limit the fixed cylinder 201, improving the installation stability of the central housing 4. When disassembling the central housing 4, the limiting rod 301 is pulled out of the limiting groove 302, and then the fixed cylinder 201 is moved.

[0032] A handle 11 is rotatably mounted at one end of the limiting rod 301 extending out of the fixed cylinder 201. A fixing plate 12 is fixedly connected to the outside of the fixed cylinder 201. A first clamping groove 13 and a second clamping groove 14 are fixedly connected to the fixing plate 12. The handle 11 is matched with both the first clamping groove 13 and the second clamping groove 14.

[0033] Specifically, the handle 11 is used to control the movement of the limiting rod 301. After installing the central housing 4, the handle 11 is rotated into the first clamping groove 13 to prevent the handle 11 from being accidentally touched by an external force and thus moving the limiting rod 301. When disassembling the central housing 4, the handle 11 is pulled to drive the limiting rod 301 to move, and then the handle 11 is rotated into the second clamping groove 14 for disassembly.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A quickly disassembled and assembled diaphragm pump central body structure, including a pump body housing (1), and a central housing (4) is arranged on the pump body housing (1), characterized in that, Also included are: A bracket (5), fixedly connected to the outside of the pump body housing (1), wherein, a connecting rod (6) is fixedly connected to the bracket (5), and a hemispherical body (7) is fixedly connected to one end of the connecting rod (6) close to the central housing (4); A fixed cylinder (201) fixedly connected to one side of the central housing (4) close to the hemispherical body (7), wherein, the diameter of the hemispherical body (7) matches the inner diameter of the fixed cylinder (201), a wedge block (202) is arranged in the fixed cylinder (201), the inclined surface of the wedge block (202) faces the arc surface of the hemispherical body (7), and a moving part for driving the wedge block (202) to move is arranged on the fixed cylinder (201).

2. The central body structure of a quickly disassemblable diaphragm pump according to claim 1, characterized in that The moving part includes a sliding groove (203) opened on the inner wall of the fixed cylinder (201), the wedge block (202) is slidably connected to the inner wall of the sliding groove (203), and a first spring (204) is fixedly connected between the wedge block (202) and the inner wall of the sliding groove (203).

3. A quick-disassembling and assembling diaphragm pump central body structure according to claim 1, characterized in that, An upper boss (8) and a lower boss (9) are slidably connected to the connecting rod (6), the top of the lower boss (9) is fixedly connected to the bottom of the upper boss (8), the inclined surface of the upper boss (8) faces the inclined surface of the wedge block (202), and a receiving groove (10) matching the upper boss (8) is opened on one side of the hemispherical body (7) close to the upper boss (8).

4. A quick-disassembling and assembling diaphragm pump central body structure according to claim 1, characterized in that A limiting rod (301) is slidably mounted on the fixed cylinder (201), a limiting groove (302) is opened on the hemispherical body (7), and the limiting rod (301) is inserted into the inner wall of the limiting groove (302).

5. The central body structure of a quickly disassemblable diaphragm pump according to claim 4, characterized in that, A sliding groove (303) is opened inside the fixed cylinder (201), a ring (304) is fixedly connected to the limiting rod (301), the ring (304) is slidably connected to the inner wall of the sliding groove (303), a second spring (305) is fixedly connected between the ring (304) and the inner wall of the sliding groove (303), and one end of the limiting rod (301) close to the hemispherical body (7) is arc-shaped.

6. The central body structure of a quick-disassembling diaphragm pump according to claim 4, characterized in that A handle (11) is rotatably mounted at one end of the limiting rod (301) extending out of the fixed cylinder (201), a fixing plate (12) is fixedly connected to the outside of the fixed cylinder (201), a first clamping groove (13) and a second clamping groove (14) are fixedly connected to the fixing plate (12), and the handle (11) matches both the first clamping groove (13) and the second clamping groove (14).

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