A vertical oil-free vacuum pump for preventing material overflow

Abstract

This invention discloses a vertical oil-free vacuum pump for preventing material spillage, relating to the field of oil-free vacuum pump technology. The vertical oil-free vacuum pump includes a motor driver, with a pump body fixedly connected to the top of the motor driver. The pump is connected to a pipe that requires connection via an inlet pipe and an outlet pipe. When the pump body is driven, it discharges internal gas into the outlet pipe. The gas pressure pushes a corresponding baffle plate to keep the pump body connected to the pipe. When the motor driver stops working, the two baffle plates reset under the action of a second and a fourth spring, preventing air from flowing through the inlet and outlet pipes. When the pipes are disconnected from the inlet and outlet pipes, they isolate the pump body from the outside environment, preventing external impurities from entering the pump body and causing damage.

Description

Technical Field

[0001] The invention relates to the technical field of oil-free vacuum pumps, in particular to a vertical oil-free vacuum pump capable of preventing material from overflowing. Background Art

[0002] Vertical oil-free vacuum pump is an important vacuum equipment, mainly composed of motor and pump body. The pump body is driven by the motor. No oil is needed as lubrication and sealing medium during its operation. It has the advantages of cleanliness, no pollution and low maintenance cost. It is widely used in vacuum processing in electronics, chemical industry, medicine and other industries.

[0003] The patent cited in China with the publication number "CN221547315U" discloses a vertical oil-free vacuum pump for preventing material overflow, comprising: a pump body; a vent pipe installed on the pump body; a valve plate installed in the vent pipe and configured to rotate in the vent pipe for controlling the opening and closing states of the vent pipe through a rotating action.

[0004] When an existing vacuum pump is connected to a pipeline for operation, it is sometimes necessary to remove the pipeline from the vacuum pump and adjust the pipeline. Disassembling the pipeline in a production workshop may cause some solid impurities floating in the air in the workshop to enter the vacuum pump through the pipeline connection port of the vacuum pump. These impurities will make the pump body unstable when working and aggravate the wear of internal parts, which will cause the vacuum pump to be affected by these solid impurities during subsequent work. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a vertical oil-free vacuum pump that prevents material overflow, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vertical oil-free vacuum pump for preventing material overflow, comprising a motor driver, the top of the motor driver is fixedly connected to a pump body, the outer wall of the pump body is fixedly connected to a blocking mechanism, and the interior of the blocking mechanism is fixedly connected to a blocking mechanism;

[0007] The blocking mechanisms include:

[0008] An air intake pipe, the air intake pipe is fixedly connected to the front side of the pump body;

[0009] An air outlet pipe, the air outlet pipe is fixedly connected to the front side of the pump body;

[0010] A limiting sleeve is fixedly connected to the inside of the air intake pipe.

[0011] Preferably, a limiting sleeve is fixedly connected inside the air outlet pipe, and a movable rod is movably connected inside the limiting sleeve, one of the movable rods is fixedly connected to a blocking disk on the front side, and the other movable rod is fixedly connected to a blocking disk on the back side, and positioning rods are movably connected inside the two blocking disks.

[0012] Preferably, a third spring is arranged inside the air outlet pipe, and the third spring is fixedly connected to the corresponding limiting sleeve, and the third spring is fixedly connected to the corresponding movable rod.

[0013] Preferably, a pneumatic plate is fixedly connected to a side of the positioning rod close to the corresponding limiting sleeve, a first spring is fixedly connected to an outer wall of the positioning rod, and the first spring and the positioning rod are fixedly connected to the blocking disk.

[0014] Preferably, a movable blocking plate is movably connected inside the blocking disc, an air blocking plate is fixedly connected to the outer wall of the movable blocking plate, a second spring is fixedly connected inside the blocking disc, and the second spring is arranged in a groove arranged inside the blocking disc.

[0015] Preferably, the blocking mechanism comprises an inner limiting groove, the inner limiting groove is arranged inside one of the movable rods, a movable block is movably connected inside the inner limiting groove, and a fourth spring is fixedly connected to the front side of the movable block.

[0016] Preferably, a barrier net is fixedly connected to the back of the movable block inside the air intake pipe, and a sweeping plate is fixedly connected to the outer wall of the movable block.

[0017] Preferably, a collecting bin is fixedly connected to the outer wall of the air intake pipe, and the collecting bin is fixedly connected to the outer wall of the air intake pipe by screws, and a blocking protrusion is fixedly connected to the top of the barrier net at a corresponding position of the barrier net.

[0018] The present invention provides a vertical oil-free vacuum pump for preventing material from overflowing. It has the following beneficial effects:

[0019] 1. The vertical oil-free vacuum pump for preventing material overflow is connected to the pipeline that needs to be coordinated through the air inlet pipe and the air outlet pipe. The motor driver drives the pump body to work, and the pump body will discharge the internal gas into the air outlet pipe. The air pressure will push the corresponding barrier disk to keep the pump body connected with the pipeline. When the motor driver stops working, the two barrier disks will reset under the action of the second spring and the fourth spring. At this time, the air inlet pipe and the air outlet pipe cannot be ventilated. At this time, when the pipeline is disassembled from the air inlet pipe and the air outlet pipe, the air inlet pipe and the air outlet pipe play a role in isolating the pump body from the outside world, preventing external impurities from entering the pump body and avoiding affecting the pump body.

[0020] 2. When the vertical oil-free vacuum pump that prevents material overflow is driven to work through the pump body, the airflow will act on the movable baffle plate. The greater the airflow, the larger the cross-sectional area of ​​the flow. When the air is inhaled at high speed, the enlarged cross-section helps to alleviate the problem of excessive local airflow velocity, avoid turbulence and eddy currents, and make the airflow enter the air pump more smoothly, which can improve the air intake quality of the air pump, reduce the impact and wear on the internal components of the pump, further improve the efficiency and life of the air pump, and play a role in protecting the pump body.

[0021] 3. The vertical oil-free vacuum pump for preventing material overflow, the barrier plate rotates with the movable block through the inner limit groove, allowing the sweeping plate to brush the top of the barrier net, and the impurities isolated by the barrier net will be swept into the collection bin for storage through centrifugal force, and when the sweeping plate is driven, it will hit the blocking protrusion at intervals, so that the materials adhered to the surface of the sweeping plate will be shaken off and fall into the collection bin, preventing solid matter from mixing into the pump body, so as to avoid the solid impurities in the pipeline from flowing into the pump body through the airflow and affecting the pump body.

[0022] 4. The vertical oil-free vacuum pump for preventing material overflow will reset the barrier disc under the action of the third spring and the fourth spring when the motor driver stops driving the pump body to work, and the movable rod will reset together with the reset, so that one of the protrusions on the outer wall of the fourth spring will hit the barrier net during the reset process, and the impurities blocked on the surface of the barrier net will be pushed outward, so that the next sweeping plate can more easily drop the impurities on the barrier net into the collection bin, so as to avoid the blockage of the barrier net caused by impurities and optimize the barrier effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the pump structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the air intake pipe structure of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram of the cross-section structure;

[0027] Figure 5 This is a schematic diagram of the structure of the air outlet pipe of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of the cross-section structure;

[0029] Figure 7 It is a schematic diagram of the structure of the movable rod of the present invention;

[0030] Figure 8 for Figure 7 The enlarged structural diagram of the middle A part;

[0031] Fig. 9 This is a schematic diagram of the structure of the barrier disk of the present invention;

[0032] Fig.10 for Fig. 9 Schematic diagram of the cross-section structure;

[0033] Fig.11 for Fig.10 The enlarged structural diagram of the middle C part;

[0034] Fig.12 for Figure 7 The enlarged structural diagram of the middle B part;

[0035] Fig.13 This is a schematic diagram of the blocking protrusion structure of the present invention;

[0036] Fig.14 It is a schematic diagram of the barrier net structure of the present invention.

[0037] In the figure: 1. motor driver; 2. pump body; 3. blocking mechanism; 301. air inlet pipe; 302. air outlet pipe; 303. limiting sleeve; 304. movable rod; 305. blocking plate; 306. positioning rod; 307. first spring; 308. pneumatic plate; 309. movable blocking plate; 310. air blocking plate; 311. second spring; 312. third spring; 4. blocking mechanism; 401. inner limiting groove; 402. fourth spring; 403. movable block; 404. sweeping plate; 405. blocking net; 406. collecting bin; 407. blocking protrusion. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] Example 1: Please refer to Figure 1-11 The present invention provides a technical solution: a vertical oil-free vacuum pump for preventing material overflow, comprising a motor driver 1, a pump body 2 is fixedly connected to the top of the motor driver 1, a blocking mechanism 3 is fixedly connected to the outer wall of the pump body 2, and a blocking mechanism 4 is fixedly connected to the inside of the blocking mechanism 3;

[0041] The blocking mechanism 3 comprises:

[0042] An air inlet pipe 301, which is fixedly connected to the front of the pump body 2, and can be connected to a pipeline that needs to be matched;

[0043] An air outlet pipe 302, which is fixedly connected to the front of the pump body 2, and can be connected to a pipeline that needs to be matched;

[0044] The limiting sleeve 303 is fixedly connected to the inside of the air inlet pipe 301 .

[0045] The air outlet pipe 302 is fixedly connected to a limiting sleeve 303 inside, and the limiting sleeve 303 is movably connected to a movable rod 304 inside. One of the movable rods 304 is fixedly connected to a blocking plate 305 on the front, and the other movable rod 304 is fixedly connected to a blocking plate 305 on the back. Both blocking plates 305 are movably connected to positioning rods 306 inside. The positioning rods 306 are in the shape of a prism and are movably connected in a movable groove in the blocking plate 305 and can only move up and down in the groove.

[0046] A third spring 312 is disposed inside the air outlet pipe 302 , and the third spring 312 is fixedly connected to the corresponding limiting sleeve 303 , and the third spring 312 is fixedly connected to the corresponding movable rod 304 .

[0047] A pneumatic plate 308 is fixedly connected to one side of the positioning rod 306 close to the corresponding limit sleeve 303, and a first spring 307 is fixedly connected to the outer wall of the positioning rod 306. The first spring 307 and the positioning rod 306 are fixedly connected to the blocking disk 305. When the blocking disk 305 moves, the positioning rod 306 will keep the pneumatic plate 308 in its original position under the pull of the first spring 307, and the airflow flows from the side of the blocking disk 305. At this time, the airflow will push the pneumatic plate 308 to rotate the blocking disk 305.

[0048] A movable blocking plate 309 is movably connected inside the blocking disk 305, and an air blocking plate 310 is fixedly connected to the outer wall of the movable blocking plate 309. A second spring 311 is fixedly connected inside the blocking disk 305, and the second spring 311 is arranged in a groove arranged inside the blocking disk 305. When the blocking disk 305 is pushed to rotate, the movable blocking plate 309 will move with the air blocking plate 310 on the outer wall. When the air blocking plate 310 moves, it will be affected by the airflow and compress the second spring 311 to move toward the inside of the blocking disk 305. When the movable blocking plate 309 moves toward the inside of the blocking disk 305, a cavity will be generated on the blocking disk 305 to allow airflow to flow through. The airflow will act on the air blocking plate 310 to further push the air blocking plate 310.

[0049] The blocking mechanism 4 includes an inner limit groove 401, which is arranged inside one of the movable rods 304. A movable block 403 is movably connected inside the inner limit groove 401. A fourth spring 402 is fixedly connected to the front of the movable block 403. When the movable rod 304 moves, the fourth spring 402 can continuously push the movable block 403 so that one side of the movable block 403 is always in contact with the front of the barrier net 405.

[0050] When in use, connect the air inlet pipe 301 and the air outlet pipe 302 to the pipes that need to be coordinated, and then start the motor driver 1, so that the motor driver 1 can work with the pump body 2, and the pump body 2 will discharge the internal gas into the outlet pipe 302, and the air pressure will pull the blocking plate 305 inside the air inlet pipe 301 inward, and push the blocking plate 305 inside the outlet pipe 302 outward, so that the two blocking plates 305 overcome the effects of the fourth spring 402 and the third spring 312 respectively and move to a place with a larger cross-section. When the blocking plate 305 moves, the positioning rod 306 will keep the pneumatic plate 308 in its original position under the pull of the first spring 307, so that the airflow will flow from the side of the blocking plate 305. At this time, the airflow will push the pneumatic plate 308 to make the blocking plate 305 rotate, and the blocking plate 305 will rotate with the movable blocking plate 309 when rotating, and the movable blocking plate 309 will drive the air blocking plate 310 on the outer wall When the air baffle plate 310 moves together, it will be affected by the airflow and will compress the second spring 311 and move toward the inside of the baffle plate 305. When the movable baffle plate 309 moves toward the inside of the baffle plate 305, a cavity will be generated on the baffle plate 305 to allow airflow to flow through. The airflow will act on the air baffle plate 310 to further push the air baffle plate 310. The greater the airflow speed, the further the movable baffle plate 309 will move toward the inside of the baffle plate 305, making the cross-sectional area of ​​the flow larger. During high-speed air intake, the enlarged cross-section helps to alleviate the problem of excessive local airflow speed and avoid turbulence and eddy currents, so that the airflow enters the air pump more smoothly, which can improve the air intake quality of the air pump, reduce the impact and wear on the internal components of the pump, and further improve the efficiency and life of the air pump. At the same time, maintaining a smaller cross-section when the airflow is small helps to maintain a relatively stable gas flow speed and a certain air delivery effect.

[0051] When the motor driver 1 stops working, the two blocking discs 305 will be reset under the action of the second spring 311 and the fourth spring 402, and the movable blocking plate 309 will close the blocking net 405 again. At this time, the air inlet pipe 301 and the air outlet pipe 302 cannot be ventilated. At this time, when the pipeline and the air inlet pipe 301 and the air outlet pipe 302 are disassembled and separated, the air inlet pipe 301 and the air outlet pipe 302 play the role of isolating the pump body 2 from the outside world, preventing external impurities from entering the pump body 2, and preventing the gas in the pump body 2 from leaking to the outside world.

[0052] Example 2: Please refer to Figure 1-14 Based on the first embodiment, the present invention provides a technical solution:

[0053] A barrier net 405 is fixedly connected to the back of the movable block 403 inside the air inlet pipe 301. The barrier net 405 will isolate the solid impurities mixed in the gas on one side of the barrier net 405. A sweeping plate 404 is fixedly connected to the outer wall of the movable block 403. When the movable rod 304 rotates, it will rotate with the movable block 403 through the inner limit groove 401. The movable block 403 will move with the sweeping plate 404. The sweeping plate 404 will brush the top of the barrier net 405 when rotating. The sweeping plate 404 will sweep the impurities isolated by the barrier net 405 into the collection bin 406 for storage through centrifugal force.

[0054] The outer wall of the air intake pipe 301 is fixedly connected with a collecting bin 406, and the collecting bin 406 is fixedly connected to the outer wall of the air intake pipe 301 by screws. The collecting bin 406 can be removed by twisting the screws to clean the impurities accumulated inside it, so as to facilitate continuous operation. The top of the barrier net 405 is located at a corresponding position of the barrier net 405 and is fixedly connected with a blocking protrusion 407. When the sweeping plate 404 is driven to rotate, it will intermittently hit the blocking protrusion 407, which will shake off the impurities adhered to the surface of the sweeping plate 404 and then fall into the collecting bin 406.

[0055] When in use, when the pump body 2 is driven by the motor driver 1 to work, the airflow will bypass the blocking disc 305 to rotate, and at the same time, the airflow will enter the pump body 2 through the blocking net 405, and the blocking net 405 will isolate the solid impurities mixed in the gas. When the blocking disc 305 is driven to rotate, the inner limit groove 401 will rotate with the movable block 403, and the movable block 403 will move with the sweeping plate 404. The sweeping plate 404 will brush the top of the blocking net 405 during rotation, and the sweeping plate 404 will use centrifugal force to sweep the blocking net 405. The impurities isolated by the partition net 405 are swept into the collecting bin 406 for storage, and when the sweeping plate 404 is driven, it will intermittently hit the blocking protrusion 407, which will shake off the impurities adhering to the surface of the sweeping plate 404 and then fall into the collecting bin 406, preventing the presence of some solid impurities in the pipeline during transportation when the pipeline is newly installed, preventing these solid substances from mixing into the pump body 2, and preventing the inside of the pump body 2 from being affected by fixed substances and aggravating wear, thereby shortening the service life of the air pump.

[0056] When the motor driver 1 stops driving the pump body 2 to work, the blocking plate 305 will reset under the action of the third spring 312 and the fourth spring 402 due to the lack of airflow push. At the same time, the movable rod 304 will also reset together, so that one of the protrusions on the outer wall of the fourth spring 402 will hit the blocking net 405 during the resetting process, pushing the impurities blocked on the surface of the blocking net 405 outward, making it easier for the sweeping plate 404 to drop the impurities on the blocking net 405 into the collection bin 406 next time.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical oil-free vacuum pump for preventing material from overflowing, comprising a motor driver (1), characterized in that: The top of the motor driver (1) is fixedly connected to a pump body (2), the outer wall of the pump body (2) is fixedly connected to a blocking mechanism (3), and the interior of the blocking mechanism (3) is fixedly connected to a blocking mechanism (4); The blocking mechanism (3) comprises: An air intake pipe (301), the air intake pipe (301) being fixedly connected to the front side of the pump body (2); An air outlet pipe (302), the air outlet pipe (302) being fixedly connected to the front side of the pump body (2); A limiting sleeve (303), wherein the limiting sleeve (303) is fixedly connected to the inside of the air inlet pipe (301).

2. A vertical oil-free vacuum pump for preventing material overflow according to claim 1, characterized in that: The air outlet pipe (302) is fixedly connected to a limiting sleeve (303) inside, and a movable rod (304) is movably connected inside the limiting sleeve (303), wherein one of the movable rods (304) is fixedly connected to a blocking plate (305) on the front side, and the other movable rod (304) is fixedly connected to a blocking plate (305) on the back side, and both blocking plates (305) are movably connected to positioning rods (306) inside.

3. A vertical oil-free vacuum pump for preventing material overflow according to claim 2, characterized in that: A third spring (312) is arranged inside the air outlet pipe (302), and the third spring (312) is fixedly connected to the corresponding limiting sleeve (303), and the third spring (312) is fixedly connected to the corresponding movable rod (304).

4. A vertical oil-free vacuum pump for preventing material overflow according to claim 3, characterized in that: A pneumatic plate (308) is fixedly connected to one side of the positioning rod (306) close to the corresponding limiting sleeve (303), a first spring (307) is fixedly connected to the outer wall of the positioning rod (306), and the first spring (307) and the positioning rod (306) are fixedly connected to the blocking disc (305).

5. A vertical oil-free vacuum pump for preventing material overflow according to claim 4, characterized in that: A movable blocking plate (309) is movably connected inside the blocking disc (305), an air blocking plate (310) is fixedly connected to the outer wall of the movable blocking plate (309), a second spring (311) is fixedly connected inside the blocking disc (305), and the second spring (311) is arranged in a groove arranged inside the blocking disc (305).

6. A vertical oil-free vacuum pump for preventing material overflow according to claim 5, characterized in that: The blocking mechanism (4) comprises an inner limiting groove (401), the inner limiting groove (401) being arranged inside one of the movable rods (304), a movable block (403) being movably connected inside the inner limiting groove (401), and a fourth spring (402) being fixedly connected to the front side of the movable block (403).

7. A vertical oil-free vacuum pump for preventing material overflow according to claim 6, characterized in that: A barrier net (405) is fixedly connected to the back of the movable block (403) inside the air intake pipe (301), and a sweeping plate (404) is fixedly connected to the outer wall of the movable block (403).

8. A vertical oil-free vacuum pump for preventing material overflow according to claim 7, characterized in that: The outer wall of the air intake pipe (301) is fixedly connected to a collecting bin (406), and the collecting bin (406) is fixedly connected to the outer wall of the air intake pipe (301) by screws. A blocking protrusion (407) is fixedly connected to the top of the barrier net (405) at a corresponding position of the barrier net (405).

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