Anti-corrosion diaphragm vacuum pump

Abstract

The invention discloses an anti-corrosion diaphragm vacuum pump, and relates to the technical field of vacuum pumps. The anti-corrosion diaphragm vacuum pump comprises a motor driver, the right side of the motor driver is fixedly connected with a pump body, the top of the pump body is fixedly connected with an air outlet, and the top of the pump body is fixedly connected with a first air inlet pipe. According to the anti-corrosion diaphragm vacuum pump, airflow can penetrate through an isolation filter screen, the isolation filter screen can isolate solid matter mixed in gas, the airflow penetrates through the isolation filter screen and flows in a pump body, blade plates can be pushed, and then a main supporting rod rotates; the main supporting rod drives the sweeping plate to rotate together to push solid matter blocked at the top of the isolation filter screen, the solid matter moves downwards under the action of airflow, the isolation filter screen is prevented from being blocked, the solid matter is better intercepted outside the pump body, surface film layers of parts in the pump body are prevented from being abraded, and the pump body is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum pumps, and specifically to an anti-corrosion diaphragm vacuum pump. Background Art

[0002] A vacuum pump is a device that can extract gas from an enclosed space to achieve a certain degree of vacuum, and plays an important role in many fields, such as industrial production, scientific research, etc. The vacuum pump continuously discharges gas to reduce the pressure in the enclosed space and create the required vacuum environment for specific technological processes.

[0003] The patent with the Chinese publication number "CN207879570U" discloses an anti-corrosion diaphragm vacuum pump, which includes a housing, a motor bearing, an eccentric wheel, a connecting rod, a diaphragm, a gland, a diaphragm cavity, an O-ring, and an air chamber. The housing is externally connected to the motor bearing to input power to the eccentric wheel, and the eccentric wheel placed inside the housing is connected to the diaphragm through a connecting rod. A gland is arranged on the upper surface of the diaphragm, the diaphragm is accommodated in the diaphragm cavity, an O-ring is arranged on the diaphragm cavity, and the O-ring is linearly connected to the air chamber.

[0004] In some chemical production processes, various corrosive gases will be generated. Due to the reaction, material transportation and other links in the production process, it may contain solid particles, such as catalyst powder, raw material particles and other solid substances. When these solid substances enter the pump body, the anti-corrosion film layer coated on the internal parts of the pump body will be worn, resulting in the corrosion and damage of the internal parts of the pump body. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an anti-corrosion diaphragm vacuum pump to solve the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: an anti-corrosion diaphragm vacuum pump, including a motor driver, the right side of the motor driver is fixedly connected to a pump body, the top of the pump body is fixedly connected to an air outlet, the top of the pump body is fixedly connected to a first intake pipe, a connecting block is fixedly connected to the outer wall of the first intake pipe, a second intake pipe is arranged at the top of the first intake pipe, and the second intake pipe is fixedly connected to the connecting block. A speed reduction assembly is fixedly connected inside the connecting block, and a blocking mechanism is fixedly connected inside the first intake pipe;

[0007] The blocking mechanism includes:

[0008] A first fixing frame, the first fixing frame is fixedly connected inside the first intake pipe;

[0009] A main support rod, the main support rod is movably connected to the first fixing frame;

[0010] The first spring is fixedly connected to the outer wall of the main support rod, and the first spring is fixedly connected to the first fixing bracket through a shaft.

[0011] Preferably, an isolation filter screen is movably connected inside the second intake pipe on the outer wall of the main support rod. A sweeping plate is fixedly connected to the outer wall of the main support rod above the isolation filter screen. A limiting block is fixedly connected to the outer wall of the isolation filter screen. A notch matching the isolation filter screen is provided on the inner wall of the second intake pipe, and the limiting block is movably connected inside the notch provided in the second intake pipe.

[0012] Preferably, a blade plate is fixedly connected to the outer wall of the main support rod, and a push rod is fixedly connected to the outer wall of the main support rod. A partition plate is movably connected inside the first intake pipe. An elastic telescopic rod is fixedly connected to the bottom of the partition plate, and a ball is movably connected to the bottom of the elastic telescopic rod.

[0013] Preferably, a push plate is fixedly connected to the top of the partition plate, a rolling column is movably connected to the top of the push plate, a lower pressing plate is movably connected to the top of the rolling column on the outer wall of the second intake pipe, and an electric telescopic rod is fixedly connected to the top of the lower pressing plate, and the top of the electric telescopic rod is fixedly connected to the outer wall of the second intake pipe.

[0014] Preferably, a jacking protrusion is fixedly connected to the outer wall of the isolation filter screen, a driving frame is fixedly connected to the outer wall of the main support rod, and a driving plate is movably connected to the outer wall of the driving frame.

[0015] Preferably, the deceleration assembly includes a limiting plate fixedly connected inside the second intake pipe above the isolation filter screen. A second fixing bracket is fixedly connected to the inside of the second intake pipe above the limiting plate, and a movable rod is movably connected inside the second fixing bracket.

[0016] Preferably, a second spring is fixedly connected to the outer wall of the movable rod above the second fixing bracket, the bottom of the second spring is fixedly connected to the second fixing bracket through a shaft, and a blocking plate is fixedly connected to the bottom of the movable rod below the limiting plate.

[0017] Preferably, a push plate is fixedly connected to the top of the blocking plate, and a side inclined plate is fixedly connected to the outside of the push plate at the top of the blocking plate.

[0018] The present invention provides an anti-corrosion diaphragm vacuum pump. It has the following beneficial effects:

[0019] 1. The anti-corrosion diaphragm vacuum pump allows the air flow to pass through the isolation filter screen. The isolation filter screen isolates the solid substances mixed in the gas. The air flow passing through the isolation filter screen and flowing inside the pump body will push the vane plate, which in turn causes the main support rod to rotate. The main support rod drives the sweeping plate to rotate together, which can push the solid substances blocking the top of the isolation filter screen, causing them to move downward under the action of the air flow, preventing the isolation filter screen from being blocked, so that the solid substances can be better intercepted outside the pump body, avoiding the wear of the film layer on the surface of the internal parts of the pump body, and protecting the pump body.

[0020] 2. The anti-corrosion diaphragm vacuum pump sweeps the solid substances on the isolation filter screen to the top of the partition plate through the rotation of the sweeping plate. When the motor driver stops driving the pump body to work, the electric telescopic rod will contract upward and pull the lower pressing plate. At this time, the partition plate will reset under the action of the elastic recovery of the elastic telescopic rod. At this time, the elastic telescopic rod will continue to rotate due to inertia, which will cause the pushing plate to push the solid substances and discharge the solid substances through centrifugal force, further avoiding the blockage of the isolation filter screen and better protecting the pump body.

[0021] 3. The anti-corrosion diaphragm vacuum pump drives the driving frame to rotate, throwing the limit block outward, causing the limit block to hit the top bump, thereby knocking the isolation filter screen outward, making the solid substances isolated on the surface of the isolation filter screen shake outward, facilitating the sweeping plate to sweep it. After the driving plate hits the top bump, the driving plate will be thrown outward by the driving frame again and continue to hit the driving frame to keep the isolation filter screen ventilated, further avoiding the blockage of the isolation filter screen and better protecting the pump body.

[0022] 4. The anti-corrosion diaphragm vacuum pump allows the air flow to converge towards the middle under the action of the limiting plate and blow towards the top of the baffle plate, causing the air flow to overflow from both sides of the baffle plate. In this way, the solid substances carried by the air flow will hit the inclined side plate at the place where the air flow changes direction, thereby achieving the effect of decelerating the solid substances, preventing the solid substances from impacting the internal parts for a long time and damaging the internal parts, and protecting the pump body.

[0023] 5. The solid substances at the top of the inclined side plate will move outward under the action of centrifugal force, causing the solid substances to adhere more to the edge of the isolation filter screen. This can facilitate the air flow to push the vane plate through the center. Adhering to the edge of the isolation filter screen can facilitate the sweeping plate to sweep it into the top of the partition plate for discharge, improving the working effect of the isolation filter screen, and further protecting the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 Schematic diagram of the dorsal three-dimensional structure of the present invention;

[0026] Figure 3 is Figure 2 Schematic diagram of the sectional structure;

[0027] Figure 4 is Figure 2 Enlarged schematic diagram of part A in;

[0028] Figure 5 Schematic diagram of the sectional structure of the second intake pipe;

[0029] Figure 6 is Figure 5 Enlarged schematic diagram of part C in;

[0030] Figure 7 Schematic diagram of the isolation filter structure of the present invention;

[0031] Figure 8 is Figure 7 Enlarged schematic diagram of part D in;

[0032] Figure 9 Schematic diagram of the push rod structure of the present invention;

[0033] Figure 10 is Figure 9 Enlarged schematic diagram of part E in;

[0034] Figure 11 Schematic diagram of the main support rod structure of the present invention;

[0035] Figure 12 is Figure 5 Enlarged schematic diagram of part B in.

[0036] In the figure: 1, motor driver; 2, pump body; 3, air outlet; 4, first intake pipe; 5, blocking mechanism; 501, first fixing frame; 502, main support rod; 503, first spring; 504, isolation filter; 505, sweeping plate; 506, limit block; 507, push rod; 508, blade plate; 509, elastic telescopic rod; 510, partition plate; 511, pushing plate; 512, rolling column; 513, lower pressing plate; 514, electric telescopic rod; 515, driving frame; 516, driving plate; 517, jacking protrusion; 518, ball; 6, second intake pipe; 7, connecting block; 8, speed reduction assembly; 801, limiting plate; 802, second fixing frame; 803, movable rod; 804, blocking plate; 805, side inclined plate; 806, pushing plate; 807, second spring. Detailed implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0038] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0039] Embodiment 1: Please refer to Figure 1-11 , the present invention provides a technical solution: an anti-corrosion diaphragm vacuum pump, including a motor driver 1, the right side of the motor driver 1 is fixedly connected to a pump body 2, and the surfaces of the internal parts of the pump body 2 are coated with a film layer formed by a polytetrafluoroethylene coating to prevent corrosive gases from corroding the surfaces of the internal parts of the pump body 2.

[0040] The top of the pump body 2 is fixedly connected to an air outlet 3, the top of the pump body 2 is fixedly connected to a first intake pipe 4, the outer wall of the first intake pipe 4 is fixedly connected to a connection block 7, the top of the first intake pipe 4 is provided with a second intake pipe 6, and the second intake pipe 6 is fixedly connected to the connection block 7. A deceleration assembly 8 is fixedly connected inside the connection block 7, and a blocking mechanism 5 is fixedly connected inside the first intake pipe 4;

[0041] The blocking mechanism 5 includes:

[0042] A first fixing frame 501, the first fixing frame 501 is fixedly connected inside the first intake pipe 4;

[0043] A main support rod 502, the main support rod 502 is movably connected to the first fixing frame 501;

[0044] A first spring 503, the first spring 503 is fixedly connected to the outer wall of the main support rod 502, and the first spring 503 is fixedly connected to the first fixing frame 501 through a shaft.

[0045] An isolation filter screen 504 is movably connected to the outer wall of the main support rod 502 inside the second intake pipe 6, a sweeping plate 505 is fixedly connected to the outer wall of the main support rod 502 above the isolation filter screen 504, a limiting block 506 is fixedly connected to the outer wall of the isolation filter screen 504, and a notch matching the isolation filter screen 504 is provided on the inner wall of the second intake pipe 6, and the limiting block 506 is movably connected inside the notch provided in the second intake pipe 6.

[0046] The outer wall of the main support rod 502 is fixedly connected with a blade plate 508. The airflow can make the main support rod 502 rotate by pushing the blade plate 508. The outer wall of the main support rod 502 is fixedly connected with a push rod 507. A partition plate 510 is movably connected inside the first intake pipe 4. The bottom of the partition plate 510 is fixedly connected with an elastic telescopic rod 509. The elastic telescopic rod 509 can be compressed and then restore its original length under the action of its own elasticity. The bottom of the elastic telescopic rod 509 is movably connected with a ball 518.

[0047] The top of the partition plate 510 is fixedly connected with a push plate 511. The top of the push plate 511 is movably connected with a rolling column 512. The outer wall of the second intake pipe 6 is movably connected with a lower pressing plate 513 at the top of the rolling column 512. The top of the lower pressing plate 513 is fixedly connected with an electric telescopic rod 514. The top of the electric telescopic rod 514 is fixedly connected with the outer wall of the second intake pipe 6.

[0048] The outer wall of the isolation filter screen 504 is fixedly connected with a pushing protrusion 517. The outer wall of the main support rod 502 is fixedly connected with a driving frame 515. The outer wall of the driving frame 515 is movably connected with a driving plate 516. When the main support rod 502 rotates, it will drive the driving frame 515 to rotate together. When the driving frame 515 is driven, it will swing the limiting block 506 outward. The outer side of the swung limiting block 506 can hit the pushing protrusion 517.

[0049] During use, the motor driver 1 drives the pump body 2 to work, extracts gas from the second intake pipe 6 and discharges it from the air outlet 3, enters the first intake pipe 4 from the second intake pipe 6 and then enters the inside of the pump body 2. The airflow passes through the isolation filter screen 504. The isolation filter screen 504 isolates the solid substances mixed in the gas. The airflow passing through the isolation filter screen 504 and flowing into the pump body 2 will push the blade plate 508, thereby making the main support rod 502 rotate. The main support rod 502 drives the sweeping plate 505 to rotate together, which can push the solid substances blocked at the top of the isolation filter screen 504, making them move downward under the action of the airflow and preventing the isolation filter screen 504 from being blocked.

[0050] When the motor driver 1 starts to drive the pump body 2 to work, the electric telescopic rod 514 extends and pushes the lower pressing plate 513 downward, so as to press the bottom of the partition plate 510 through the lower pressing plate 513. The partition plate 510 will push the elastic telescopic rod 509 to make the elastic telescopic rod 509 contract. When the pump body 2 is driven to work, it will drive the blade plate 508 through the air flow to make the main support rod 502 rotate. When the main support rod 502 rotates, it will drive the push rod 507 to rotate together. The push rod 507 will push the elastic telescopic rod 509. The elastic telescopic rod 509 will be more easily pushed and rotated by the blade plate 508 because of the bottom ball 518 and the rolling column 512 at the top of the push plate 511. And the air flow will suck the isolation filter screen 504 downward, so that the main support rod 502 compresses the first spring 503 and moves downward, so that the sweeping plate 505 can sweep the solid substances on the isolation filter screen 504 to the top of the partition plate 510. When the motor driver 1 stops driving the pump body 2 to work, the electric telescopic rod 514 will contract and pull the lower pressing plate 513 upward. At this time, the partition plate 510 will reset under the action of the elastic recovery of the elastic telescopic rod 509. At this time, the elastic telescopic rod 509 will continue to rotate due to inertia, so that the push plate 511 will push the solid substances and discharge the solid substances through centrifugal force.

[0051] When the main support rod 502 is driven passively, it will synchronously drive the driving frame 515 to rotate together. The driving frame 515 will swing the limiting block 506 outward. The outer side of the limiting block 506 will hit the top convex 517, so as to play a role in knocking the isolation filter screen 504 outward, and make the surface of the isolation filter screen 504 shake the solid substances outward, which is convenient for the sweeping plate 505 to sweep it. After the driving plate 516 hits the top convex 517, the driving plate 516 will be swung outward by the driving frame 515 again and continue to hit the driving frame 515 to keep the isolation filter screen 504 ventilated.

[0052] Embodiment 2: Please refer to Figure 1-12 , on the basis of Embodiment 1, the present invention provides a technical solution:

[0053] The deceleration assembly 8 includes a limiting plate 801. The limiting plate 801 is fixedly connected inside the second air inlet pipe 6 at the top of the isolation filter screen 504. A second fixing frame 802 is fixedly connected inside the second air inlet pipe 6 at the top of the limiting plate 801. An activity rod 803 is movably connected inside the second fixing frame 802.

[0054] On the outer wall of the activity rod 803 at the top of the second fixing frame 802, a second spring 807 is fixedly connected. The bottom of the second spring 807 is fixedly connected to the second fixing frame 802 through a shaft. At the bottom of the activity rod 803 and at the bottom of the limiting plate 801, a blocking plate 804 is fixedly connected.

[0055] A push plate 806 is fixedly connected to the top of the baffle plate 804, and a side inclined plate 805 is fixedly connected to the outside of the push plate 806 at the top of the baffle plate 804.

[0056] During use, when the motor driver 1 drives the pump body 2 to work, gas enters from the top of the second intake pipe 6. The air flow will converge towards the middle under the action of the limiting plate 801 and blow towards the top of the baffle plate 804, so that the air flow overflows from both sides of the baffle plate 804. In this way, the solid substances carried by the air flow will hit the side inclined plate 805 at the place where the air flow changes direction. The second spring 807 will play a role in absorbing the impact through the movable rod 803, so as to achieve the effect of decelerating the solid substances. The air flow overflows from the side of the side inclined plate 805, and the air flow will play a role in pushing the side inclined plate 805, causing the baffle plate 804 to rotate. When the baffle plate 804 rotates, it will drive the push plate 806 to rotate, and use centrifugal force to push the solid substances on the top of the side inclined plate 805, so that the solid substances move outward under the action of centrifugal force, avoiding the accumulation of solid substances on the top of the baffle plate 804.

[0057] The solid substances on the top of the side inclined plate 805 will move outward under the action of centrifugal force, enabling the solid substances to obtain a lateral force, which will make more solid substances adhere to the edge of the isolation filter screen 504. This can facilitate the air flow to push the blade plate 508 through the center, causing the main support rod 502 to rotate. Adhering to the edge of the isolation filter screen 504 can facilitate the sweeping plate 505 to sweep the solid substances into the top of the partition plate 510 for discharge.

[0058] 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 all should be covered within the protection scope of the present invention.

Claims

1. A corrosion-resistant diaphragm vacuum pump, comprising a motor driver (1), characterized in that: The right side of the motor driver (1) is fixedly connected to a pump body (2), the top of the pump body (2) is fixedly connected to an air outlet (3), the top of the pump body (2) is fixedly connected to a first air intake pipe (4), the outer wall of the first air intake pipe (4) is fixedly connected to a connecting block (7), a second air intake pipe (6) is provided on the top of the first air intake pipe (4), and the second air intake pipe (6) is fixedly connected to the connecting block (7), a deceleration component (8) is fixedly connected inside the connecting block (7), and a blocking mechanism (5) is fixedly connected inside the first air intake pipe (4); The blocking mechanism (5) comprises: A first fixing frame (501), the first fixing frame (501) being fixedly connected to the inside of the first air intake pipe (4); A main support rod (502), the main support rod (502) being movably connected to the first fixing frame (501); A first spring (503), wherein the first spring (503) is fixedly connected to the outer wall of the main support rod (502), and the first spring (503) is fixedly connected to the first fixing frame (501) via a shaft.

2. The corrosion-resistant diaphragm vacuum pump according to claim 1, characterized in that: The outer wall of the main support rod (502) is located inside the second air intake pipe (6) and is movably connected to an isolation filter (504); the outer wall of the main support rod (502) is located on the top of the isolation filter (504) and is fixedly connected to a sweeping plate (505); the outer wall of the isolation filter (504) is fixedly connected to a limiting block (506); the inner wall of the second air intake pipe (6) is provided with a notch that matches the isolation filter (504); and the limiting block (506) is movably connected inside the notch provided in the second air intake pipe (6).

3. The corrosion-resistant diaphragm vacuum pump according to claim 2, characterized in that: The outer wall of the main support rod (502) is fixedly connected to a blade plate (508), the outer wall of the main support rod (502) is fixedly connected to a push rod (507), the interior of the first air inlet pipe (4) is movably connected to a partition plate (510), the bottom of the partition plate (510) is fixedly connected to an elastic telescopic rod (509), and the bottom of the elastic telescopic rod (509) is movably connected to a ball bearing (518).

4. The anti-corrosion diaphragm vacuum pump according to claim 3, characterized in that: The partition plate (510) is fixedly connected to a push plate (511) on the top, and a rolling column (512) is movably connected to the top of the push plate (511). The outer wall of the second air inlet pipe (6) is movably connected to a lower pressure plate (513) located on the top of the rolling column (512). The top of the lower pressure plate (513) is fixedly connected to an electric telescopic rod (514), and the top of the electric telescopic rod (514) is fixedly connected to the outer wall of the second air inlet pipe (6).

5. The corrosion-resistant diaphragm vacuum pump according to claim 4, characterized in that: The outer wall of the isolation filter (504) is fixedly connected to a push-up protrusion (517), the outer wall of the main support rod (502) is fixedly connected to a driving frame (515), and the outer wall of the driving frame (515) is movably connected to a driving plate (516).

6. The corrosion-resistant diaphragm vacuum pump according to claim 2, characterized in that: The deceleration assembly (8) comprises a limiting plate (801), wherein the limiting plate (801) is fixedly connected inside the second air intake pipe (6) and is located on the top of the isolation filter (504); inside the second air intake pipe (6) and is located on the top of the limiting plate (801) and is fixedly connected to a second fixing frame (802); and inside the second fixing frame (802) there is a movable rod (803) movably connected.

7. The corrosion-resistant diaphragm vacuum pump according to claim 6, characterized in that: The outer wall of the movable rod (803) is located at the top of the second fixing frame (802) and is fixedly connected to a second spring (807); the bottom of the second spring (807) is fixedly connected to the second fixing frame (802) via an axis; the bottom of the movable rod (803) is located at the bottom of the limiting plate (801) and is fixedly connected to a blocking plate (804).

8. The corrosion-resistant diaphragm vacuum pump according to claim 7, characterized in that: The top of the blocking plate (804) is fixedly connected to a push plate (806), and the top of the blocking plate (804) is located outside the push plate (806) and is fixedly connected to a side inclined plate (805).

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