Complete-machine air tightness detection device for axial flow pump

Abstract

The utility model discloses an axial flow pump complete machine air tightness detection device, relates to the axial flow pump technology field, and comprises a pedestal, the top of the pedestal is provided with a detection mechanism, the top of the pedestal is provided with a fixing mechanism used for rapid installation and dismounting when an axial flow pump body is detected, and the fixing mechanism comprises a driving unit; a clamping unit and a motor operate to drive a lead screw to rotate, the lead screw drives a mounting disc to move in the direction of the motor, at the moment, the mounting disc drives four linkage blocks to move synchronously, when the linkage blocks move, four linkage columns slide in four linkage grooves, the four linkage columns synchronously move away from the center, and the linkage columns drive moving rods to move synchronously; the movable rod drives the connecting column to move, the connecting column drives the cross-shaped sliding block and the clamping block to move synchronously, and the clamping block clamps and fixes a port of the axial flow pump body, so that the axial flow pump body is quickly mounted and dismounted, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of axial flow pump technology, specifically to an axial flow pump overall air tightness testing device. Background Technology

[0002] An axial flow pump is a type of pump that uses the force exerted by the blades of a rotating impeller on the liquid to transport it along its axis. It is widely used in applications requiring low head and high flow rates, such as irrigation, drainage, dock drainage, water level regulation in canal locks, and as a large circulating water pump in power plants. Axial flow pumps offer advantages such as high flow rate and high efficiency, making them essential equipment in water conservancy projects, agricultural irrigation, and urban drainage.

[0003] A search of publication number CN219714624U reveals an electronic water pump airtightness testing device, comprising: a mounting base for placing the water pump under test; a clamping assembly for clamping the water pump under test onto the mounting base; an inlet sealing assembly including a first expansion cylinder and a first expansion sleeve connected to the first expansion cylinder, the first expansion sleeve being able to expand by the first expansion cylinder to seal the inlet; the mounting base having a through hole for the first expansion sleeve to pass through and penetrate the worktable; an outlet sealing assembly including a second expansion cylinder, an expansion seat, and a second expansion sleeve, the second expansion sleeve being connected to a test medium inlet; and a driving assembly capable of driving the outlet sealing assembly to move along the worktable so that the second expansion sleeve enters the outlet, the second expansion sleeve being able to expand by the first expansion cylinder to seal the outlet. This utility model can quickly and accurately perform automatic testing of the airtightness of electronic water pumps.

[0004] Based on the aforementioned existing technology, the current axial flow pump air tightness testing devices still have the following problems: when installing and testing the axial flow pump, most of the existing axial flow pump air tightness testing devices use bolt fixing, but the installation and disassembly process is too cumbersome, time-consuming and labor-intensive, reducing work efficiency. Therefore, this utility model provides an axial flow pump air tightness testing device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an airtightness testing device for an axial flow pump, which solves the following problems of existing airtightness testing devices for axial flow pumps: when installing and testing an axial flow pump, most existing airtightness testing devices use bolt fixing, but the installation and disassembly process is too cumbersome, time-consuming and labor-intensive, reducing work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an axial flow pump overall airtightness testing device, comprising a base, a support frame fixedly mounted on the top of the base, and an axial flow pump body mounted above the support frame. A testing mechanism is provided on the top of the base, and a fixing mechanism is provided on the top of the base for quick installation and disassembly of the axial flow pump body during testing. The fixing mechanism includes:

[0007] The drive unit is located above the base and is used to provide driving power;

[0008] The clamping unit, located above the base, includes a mounting plate and a track seat. Four linkage blocks are fixedly installed on one side of the mounting plate, and a moving rod is slidably installed on the surface of the linkage block. A connecting column is fixedly installed on one side of the moving rod. A cross groove is opened inside the track seat, and a cross slider is slidably installed inside the cross groove. A clamping block is fixedly installed on one side of the cross slider, and the side of the cross slider away from the clamping block is fixedly connected to the connecting column.

[0009] Preferably, the clamping unit further includes a linkage column fixedly installed inside one end of the moving rod, the linkage block has a linkage groove inside, and the linkage column slides within the linkage groove, and a reinforcing rib is fixedly installed between the moving rod and the connecting column.

[0010] Preferably, the drive unit includes a fixed column fixedly installed on the top of the base, a mounting cylinder fixedly installed at the top of the fixed column, a lead screw rotatably installed inside the mounting cylinder, and a motor fixedly installed at one end of the mounting cylinder, with the motor movably passing through the mounting cylinder and fixedly connected to the motor.

[0011] Preferably, the drive unit further includes a first sealing gasket and a plug fixedly installed at the end away from the motor, and one end of the plug passes through the first sealing gasket.

[0012] Preferably, the detection mechanism includes a mounting frame fixedly installed on the top of the base, a cylinder fixedly installed on the top of the horizontal plate of the mounting frame, a connecting seat fixedly installed through the horizontal plate of the mounting frame on the output rod of the cylinder, four connecting rods fixedly installed at the bottom of the connecting seat, a pressure plate fixedly installed at the bottom of the connecting rods, and a second sealing gasket fixedly installed at the bottom of the pressure plate.

[0013] Preferably, the detection mechanism further includes an air inlet pipe that is fixedly installed inside the pressure plate and the second sealing gasket. An air supply pipe is fixedly installed at the top end of the air inlet pipe, and a pressure gauge is fixedly installed on one side of the air inlet pipe.

[0014] This invention provides a device for testing the overall airtightness of an axial flow pump. Compared with the prior art, it has the following advantages:

[0015] (1) The airtightness testing device for the axial flow pump is operated by a motor, which drives the lead screw to rotate. The lead screw drives the mounting plate to move in the direction of the motor. At this time, the mounting plate drives the four linkage blocks to move synchronously. When the linkage blocks move, the four linkage columns slide inside the four linkage slots. The four linkage columns move synchronously away from the center. The linkage columns drive the moving rod to move synchronously. The moving rod drives the connecting column to move. The connecting column drives the cross slider and the clamping block to move synchronously. The clamping block clamps and fixes the port of the axial flow pump body, thereby realizing the quick installation and disassembly of the axial flow pump body, thus improving the work efficiency.

[0016] (2) The air tightness testing device for the whole axial flow pump has four clamping blocks with inclined ends. When the four clamping blocks clamp the port of the axial flow pump body, the inclined ends of the clamping blocks contact the edge of the port of the axial flow pump body, causing the port of the axial flow pump body to squeeze the first sealing gasket, thereby improving the sealing performance of the port of the axial flow pump body. Attached Figure Description

[0017] Figure 1 This is a left-side perspective view of the three-dimensional structure of this utility model;

[0018] Figure 2 This is a front-section left-side perspective view of the fixing mechanism of this utility model;

[0019] Figure 3 This is a front-section right-side perspective view of the fixing mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the testing mechanism of this utility model.

[0021] In the diagram: 1-base, 2-fixing mechanism, 21-drive unit, 211-fixed column, 212-mounting cylinder, 213-motor, 214-lead screw, 215-first sealing gasket, 216-insertion column, 22-clamping unit, 221-mounting plate, 222-linkage block, 223-linkage groove, 224-linkage column, 225-moving rod, 226-connecting column, 227-reinforcing rib, 228-track seat, 229-cross slide groove, 2210-cross slider, 2211-clamping block, 3-detection mechanism, 31-mounting frame, 32-cylinder, 33-connecting seat, 34-connecting rod, 35-pressure plate, 36-second sealing gasket, 37-inlet pipe, 38-air delivery pipe, 39-pressure gauge, 4-support frame, 5-axial flow pump body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] An axial flow pump airtightness testing device includes a base 1, a support frame 4 fixedly mounted on the top of the base 1, and an axial flow pump body 5 mounted above the support frame 4. A testing mechanism 3 is provided on the top of the base 1, and a fixing mechanism 2 is provided on the top of the base 1 for quick installation and disassembly of the axial flow pump body 5 during testing. The fixing mechanism 2 includes:

[0025] The drive unit 21 is disposed above the base 1 and is used to provide driving power;

[0026] The clamping unit 22 is located above the base 1 and includes a mounting plate 221 and a track seat 228. Four linkage blocks 222 are fixedly installed on one side of the mounting plate 221, and a moving rod 225 is slidably installed on the surface of the linkage block 222. A connecting column 226 is fixedly installed on one side of the moving rod 225. A cross slide groove 229 is opened inside the track seat 228, and a cross slider 2210 is slidably installed inside the cross slide groove 229. A clamping block 2211 is fixedly installed on one side of the cross slider 2210, and the side of the cross slider 2210 away from the clamping block 2211 is fixedly connected to the connecting column 226.

[0027] In this embodiment, the clamping unit 22 further includes a linkage column 224 fixedly installed inside one end of the moving rod 225. The linkage block 222 has a linkage groove 223 inside, and the linkage column 224 slides inside the linkage groove 223. A reinforcing rib 227 is fixedly installed between the moving rod 225 and the connecting column 226.

[0028] When motor 213 runs, it drives lead screw 214 to rotate. Lead screw 214 drives mounting plate 221 to move towards motor 213. At this time, mounting plate 221 drives four linkage blocks 222 to move synchronously. When linkage blocks 222 move, four linkage columns 224 slide inside four linkage slots 223. The four linkage columns 224 move synchronously away from the center. Linkage columns 224 drive moving rod 225 to move synchronously. Moving rod 225 drives connecting column 226 to move. Connecting column 226 drives cross slider 2210 and clamping block 2211 to move synchronously. Clamping block 2211 clamps and fixes the port of axial flow pump body 5, thereby realizing the quick installation and disassembly of axial flow pump body 5, thus improving work efficiency.

[0029] A reinforcing rib 227 is fixedly installed between the movable rod 225 and the connecting column 226. The reinforcing rib 227 supports the connecting column 226 and prevents the connecting column 226 from deforming. The movable rod 225 passes through the mounting cylinder 212 and slides within the wall of the mounting cylinder 212.

[0030] In this embodiment, the drive unit 21 includes a fixed column 211 fixedly installed on the top of the base 1. A mounting cylinder 212 is fixedly installed on the top of the fixed column 211. A lead screw 214 is rotatably installed inside the mounting cylinder 212. A motor 213 is fixedly installed at one end of the mounting cylinder 212. The motor 213 is movably connected to the mounting cylinder 212. The drive unit 21 also includes a first sealing gasket 215 and a plug 216 fixedly installed at the end away from the motor 213. One end of the plug 216 passes through the first sealing gasket 215.

[0031] The clamping ends of the four clamping blocks 2211 are inclined surfaces, so that when the four clamping blocks 2211 clamp the port of the axial flow pump body 5, the inclined surfaces of the clamping blocks 2211 contact the edge of the port of the axial flow pump body 5, causing the port of the axial flow pump body 5 to squeeze the first sealing gasket 215, thereby improving the sealing performance of the port of the axial flow pump body 5.

[0032] In this embodiment, the detection mechanism 3 includes a mounting bracket 31 fixedly installed on the top of the base 1. A cylinder 32 is fixedly installed on the top of the horizontal plate of the mounting bracket 31. The output rod of the cylinder 32 passes through the horizontal plate of the mounting bracket 31 and is fixedly installed on a connecting seat 33. Four connecting rods 34 are fixedly installed at the bottom of the connecting seat 33. A pressure plate 35 is fixedly installed at the bottom of the connecting rods 34. A second sealing gasket 36 is fixedly installed at the bottom of the pressure plate 35. The detection mechanism 3 also includes an air inlet pipe 37 fixedly installed through the pressure plate 35 and the second sealing gasket 36. An air supply pipe 38 is fixedly installed at the top of the air inlet pipe 37, and a pressure gauge 39 is fixedly installed on one side of the air inlet pipe 37.

[0033] The pressure gauge 39 is model YF-P301. When the cylinder 32 operates, the cylinder 32 drives the connecting seat 33 and the connecting rod 34 to move down synchronously. The connecting rod 34 drives the pressure plate 35 and the second sealing gasket 36 to move down synchronously. The second sealing gasket 36 squeezes the port above the axial flow pump body 5 to seal the port. Then the gas cylinder connected to the gas supply pipe 38 is opened, and the axial flow pump body 5 is filled with air through the gas supply pipe 38 and the air inlet pipe 37. By observing the pressure value of the pressure gauge 39, if the pressure value does not change, the air tightness is good; if the pressure value changes, the air tightness is poor.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] During operation, the axial flow pump body 5 is first placed on the support frame 4 and aligned. Two insertion pins 216 are inserted into the holes at the edge of the port of the axial flow pump body 5. Then, the motor 213 runs, driving the lead screw 214 to rotate. The lead screw 214 drives the mounting plate 221 to move towards the motor 213. At this time, the mounting plate 221 drives the four linkage blocks 222 to move synchronously. As the linkage blocks 222 move, the four linkage pins 224 slide inside the four linkage slots 223, moving synchronously away from the center. The linkage pins 224 drive the moving rod 225 to move synchronously, and the moving rod 225 drives the connecting pin 226 to move. 6 drives the cross slider 2210 and the clamping block 2211 to move synchronously. The clamping block 2211 clamps and fixes the port of the axial flow pump body 5. Then the cylinder 32 runs, and the cylinder 32 drives the connecting seat 33 and the connecting rod 34 to move down synchronously. The connecting rod 34 drives the pressure plate 35 and the second sealing gasket 36 to move down synchronously. The second sealing gasket 36 squeezes the port above the axial flow pump body 5 to seal the port. Then the gas cylinder connected to the gas supply pipe 38 is opened, and the axial flow pump body 5 is filled with air through the gas supply pipe 38 and the air inlet pipe 37. By observing the gas pressure value of the pressure gauge 39, the air tightness is good if the gas pressure value does not change, and the air tightness is poor if the gas pressure value changes.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the overall airtightness of an axial flow pump, characterized in that: The system includes a base (1), a support frame (4) fixedly mounted on the top of the base (1), and an axial flow pump body (5) mounted above the support frame (4). A detection mechanism (3) is provided on the top of the base (1), and a fixing mechanism (2) is provided on the top of the base (1) for quick installation and disassembly of the axial flow pump body (5) during inspection. The fixing mechanism (2) includes: A drive unit (21) is disposed above the base (1) and is used to provide drive power; The clamping unit (22) is located above the base (1) and includes a mounting plate (221) and a track seat (228). Four linkage blocks (222) are fixedly installed on one side of the mounting plate (221), and a moving rod (225) is slidably installed on the surface of the linkage block (222). A connecting column (226) is fixedly installed on one side of the moving rod (225). A cross slide groove (229) is opened inside the track seat (228), and a cross slider (2210) is slidably installed inside the cross slide groove (229). A clamping block (2211) is fixedly installed on one side of the cross slider (2210), and the side of the cross slider (2210) away from the clamping block (2211) is fixedly connected to the connecting column (226).

2. The airtightness testing device for an axial flow pump according to claim 1, characterized in that: The clamping unit (22) further includes a linkage column (224) fixedly installed inside one end of the moving rod (225). The linkage block (222) has a linkage groove (223) inside, and the linkage column (224) slides inside the linkage groove (223). A reinforcing rib (227) is fixedly installed between the moving rod (225) and the connecting column (226).

3. The airtightness testing device for an axial flow pump according to claim 1, characterized in that: The drive unit (21) includes a fixed column (211) fixedly installed on the top of the base (1). A mounting cylinder (212) is fixedly installed on the top of the fixed column (211). A lead screw (214) is rotatably installed inside the mounting cylinder (212). A motor (213) is fixedly installed at one end of the mounting cylinder (212). The motor (213) moves through the mounting cylinder (212) and is fixedly connected to the motor (213).

4. The airtightness testing device for an axial flow pump according to claim 3, characterized in that: The drive unit (21) also includes a first sealing gasket (215) and a plug (216) fixedly installed at the end away from the motor (213), and one end of the plug (216) passes through the first sealing gasket (215).

5. The airtightness testing device for an axial flow pump according to claim 1, characterized in that: The detection mechanism (3) includes a mounting bracket (31) fixedly installed on the top of the base (1). A cylinder (32) is fixedly installed on the top of the horizontal plate of the mounting bracket (31). The output rod of the cylinder (32) passes through the horizontal plate of the mounting bracket (31) and is fixedly installed with a connecting seat (33). Four connecting rods (34) are fixedly installed at the bottom of the connecting seat (33). A pressure plate (35) is fixedly installed at the bottom of the connecting rods (34). A second sealing gasket (36) is fixedly installed at the bottom of the pressure plate (35).

6. The airtightness testing device for an axial flow pump according to claim 5, characterized in that: The detection mechanism (3) also includes an air inlet pipe (37) that is fixedly installed inside the pressure plate (35) and the second sealing gasket (36). An air supply pipe (38) is fixedly installed at the top of the air inlet pipe (37), and a pressure gauge (39) is fixedly installed on one side of the air inlet pipe (37).

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