Vacuum constant pressure device

Abstract

The utility model provides a vacuum constant pressure device, which relates to the technical field of vacuum constant pressure and comprises a vacuum container, a feeding pipe arranged on the surface of the vacuum container, a discharging pipe arranged at the bottom of the vacuum container, fixing grooves arranged inside the feeding pipe and the discharging pipe, a support frame arranged on the surface of the vacuum container, a servo motor arranged on the surface of the support frame, and a vacuum pump arranged on the vacuum container. The servo motor, the lead screw, the sealing cover, the connecting block, the fixing block and the fixing groove are adopted, when sealing connection needs to be conducted, the servo motor is started, then the lead screw is driven to rotate, the sealing cover and the connecting block at the bottom of the sealing cover are driven to rotate together, and the bottom end of the fixing block enters along the top end of the fixing groove; and along with rotation of the sealing cover and the connecting block, the fixing block is gradually embedded into the fixing groove, so that the sealing cover is rapidly fixed to the feeding pipe and the discharging pipe, operation is easy, consumed time is short, manpower is saved, and working efficiency and smoothness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum constant pressure, in particular to a vacuum constant pressure device. Background Art

[0002] According to a vacuum furnace vacuum constant pressure control device disclosed in Chinese patent number CN214276481U, it includes a base plate, and two supporting plates, a monitoring box, a vacuum pump, and a control box are fixedly installed on the upper end surface of the base plate from right to left in sequence. The upper end surfaces of the two supporting plates are fixedly installed with a furnace body, and a vacuum pressure gauge is installed on the upper end surface of the outer wall of the furnace body. The top of the outer wall of the furnace body is connected to an exhaust pipe, and the exhaust pipe is located on the left side of the vacuum pressure gauge, so that the vacuum degree in the furnace body is monitored simultaneously by the vacuum pressure gauge and the vacuum degree sensor. The controller analyzes the data monitored by the two and makes an instruction. If the difference in data fluctuation exceeds the set range, the controller activates the alarm to prompt the staff to perform maintenance in time, and adjusts the vacuum degree in the monitoring box by the vacuum pump, thereby indirectly adjusting the vacuum degree in the furnace body, so that the vacuum degree in the furnace body reaches a constant pressure effect.

[0003] The above documents and the prior art have the following technical problems: the feed pipe and discharge pipe in the existing vacuum constant pressure device are mostly designed to connect and seal the sealing cover to the vacuum container through tools such as pliers, which is cumbersome and time-consuming to operate, reducing the efficiency and smoothness of the overall work process. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a vacuum constant pressure device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vacuum constant pressure device, comprising a vacuum container, a feed pipe is provided on the surface of the vacuum container, a discharge pipe is provided at the bottom of the vacuum container, a fixing groove is provided inside the feed pipe and the discharge pipe, a support frame is provided on the surface of the vacuum container, a servo motor is provided on the surface of the support frame, a screw rod is provided at the output end of the servo motor, a guide rod is provided on the surface of the support frame, a sealing cover is provided on the surfaces of the screw rod and the guide rod, a connecting block is provided at the bottom of the sealing cover, and a fixing block is provided on the surface of the connecting block.

[0006] Preferably, a connecting pipe is provided on the side of the vacuum container, a vacuum pump is provided at the end of the connecting pipe, and a butterfly valve is provided on the surface of the connecting pipe.

[0007] Preferably, a cooling liquid inlet pipe is provided at the bottom of the vacuum container, and a cooling liquid outlet pipe is provided on the surface of the vacuum container.

[0008] Preferably, a support block is provided at the bottom of the vacuum container, and the support frame is provided on the surface of the vacuum container in an axisymmetric manner.

[0009] Preferably, the end of the screw rod is rotatably connected to the surface of the support frame, and the screw rod is threadedly connected to the sealing cover.

[0010] Preferably, the shape of the connecting block is adapted to the feed pipe, and the guide rod is slidably connected to the sealing cover.

[0011] Preferably, four fixing blocks are arranged in a circular array, and the shape and position of the fixing blocks are adapted to the fixing slots.

[0012] Beneficial effects

[0013] The utility model adopts a servo motor, a screw rod, a sealing cover, a connecting block, a fixed block and a fixed groove. Since the shapes of the fixed block and the fixed groove are adapted to each other and the shapes of the fixed block and the fixed groove are arc-shaped, when a sealing connection is required, the servo motor is turned on, thereby driving the screw rod to rotate, thereby driving the sealing cover and the connecting block at the bottom thereof to rotate together, so that the bottom end of the fixed block enters along the top end of the fixed groove, and as the sealing cover and the connecting block rotate, the fixed block is gradually embedded in the fixed groove, thereby quickly fixing the sealing cover on the feed pipe and the discharge pipe. The operation is simple, time-saving, manpower is saved, and work efficiency and fluency are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an axonometric view of the present utility model;

[0015] Figure 2 It is a three-dimensional diagram of the utility model;

[0016] Figure 3 This is a structural diagram of the screw rod and fixed block of the utility model;

[0017] Figure 4 This is the internal structure diagram of the utility model.

[0018] Legend:

[0019] 1. Vacuum container; 2. Feed pipe; 3. Connecting pipe; 4. Butterfly valve; 5. Vacuum pump; 6. Support block; 7. Sealing cover; 8. Support frame; 9. Servo motor; 10. Screw; 11. Connecting block; 12. Fixing block; 13. Guide rod; 14. Fixing slot; 15. Cooling inlet pipe; 16. Cooling outlet pipe; 17. Discharge pipe. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0021] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment one:

[0023] Reference Figure 1-4 A vacuum constant pressure device includes a vacuum container 1. The vacuum container 1 is the main part of the entire vacuum constant pressure device and is used to provide a closed environment that can maintain a constant pressure. The vacuum container 1 is double-layered, and a cooling medium can be passed through the middle to reduce its temperature. A support block 6 is set at the bottom of the vacuum container 1. The support block 6 is used to support the entire vacuum container 1 to ensure its stable placement. A connecting pipe 3 is provided on the side of the vacuum container 1. The vacuum container 1 is connected to a vacuum pump 5 through the connecting pipe 3 to extract the gas in the vacuum container 1 when needed to achieve the required vacuum degree. A vacuum pump 5 is provided at the end of the connecting pipe 3. The vacuum pump 5 provides suction power for the vacuum container 1 to reduce and maintain its internal pressure. The connecting pipe 3 A butterfly valve 4 is provided on the surface of the vacuum container 1, which is used to control the opening and closing of the connecting pipe 3, thereby adjusting the pumping rate of the vacuum pump 5 on the vacuum container 1. A cooling liquid inlet pipe 15 is provided at the bottom of the vacuum container 1, and a cooling liquid outlet pipe 16 is provided on the surface of the vacuum container 1. The cooling liquid inlet pipe 15 is used to inject cooling liquid into the vacuum container 1 to control or reduce the temperature in the container, and discharge the cooling liquid in the vacuum container 1 through the cooling liquid outlet pipe 16 to complete the cooling cycle. A feed pipe 2 is provided on the surface of the vacuum container 1, and a discharge pipe 17 is provided at the bottom of the vacuum container 1. Materials or reactants are added to the vacuum container 1 through the feed pipe 2, and the processed materials or products are discharged from the vacuum container 1 through the discharge pipe 17.

[0024] A fixing groove 14 is provided inside the feed pipe 2 and the discharge pipe 17, and the fixing groove 14 is used to cooperate with the fixing block 12 to achieve stable installation of the sealing cover 7. A support frame 8 is provided on the surface of the vacuum container 1, and the support frame 8 is axially symmetrically arranged on the surface of the vacuum container 1. The support frame 8 provides support for the servo motor 9, the screw rod 10 and the guide rod 13 to ensure that they can work stably. A servo motor 9 is provided on the surface of the support frame 8, and the servo motor 9 provides power for the screw rod 10 to achieve rotational positioning of the sealing cover 7. A screw rod 10 is provided at the output end of the servo motor 9, and the end of the screw rod 10 is rotatably connected to the surface of the support frame 8, and the screw rod 10 is threadedly connected to the sealing cover 7. A guide rod 13 is provided on the surface of the support frame 8, which is slidingly connected to the sealing cover 7. The guide rod 13 provides a guiding function for the sealing cover 7 to ensure that it maintains smooth and linear motion during the lifting process. A sealing cover 7 is provided on the surface of the screw rod 10 and the guide rod 13. A connecting block 11 is provided at the bottom of the sealing cover 7. The sealing cover 7 is used to close the openings of the feed pipe 2 and the discharge pipe 17 to prevent gas or liquid leakage and ensure the sealing of the vacuum container 1. The shape of the connecting block 11 is adapted to the feed pipe 2. A fixed block 12 is provided on the surface of the connecting block 11. There are four fixed blocks 12 arranged in a circular array, and the shape and position of the fixed block 12 are adapted to the fixed groove 14. The fixed block 12 is adapted to the fixed groove 14. The fixed block 12 and the fixed groove 14 are both arc-shaped, which are used to firmly fix the sealing cover 7 on the feed pipe 2 or the discharge pipe 17.

[0025] During operation, first, materials or reactants are added to the vacuum container 1 through the feed pipe 2. The vacuum pump 5 connected to the connecting pipe 3 can extract the gas in the container as needed to achieve the required vacuum degree, and the butterfly valve 4 is used to adjust the pumping rate. In addition, the cooling liquid inlet pipe 15 and the cooling liquid outlet pipe 16 in the double-layer structure of the vacuum container 1 allow the circulation of the cooling medium to control and reduce the temperature in the container. The servo motor 9 is activated to provide power to the screw rod 10, which is threadedly connected to the sealing cover 7. Therefore, the rotation of the screw rod 10 drives the sealing cover 7 to rise and fall smoothly along the guide rod 13. The bottom of the sealing cover 7 is equipped with a shape similar to that of the feed pipe 2 or the discharge pipe 17. The adaptable connecting block 11 has four fixed blocks 12 arranged in a circular array on its surface. These fixed blocks 12 have an arc-shaped design, which perfectly matches the arc-shaped fixed groove 14 inside the feed pipe 2 or the discharge pipe 17, so that the bottom end of the fixed block 12 enters along the top of the fixed groove 14, and the fixed block 12 gradually slides into the corresponding fixed groove 14. As the sealing cover 7 rotates further, the fixed block 12 is completely embedded in the fixed groove 14, thereby achieving a stable installation of the sealing cover 7, effectively preventing gas or liquid leakage, ensuring constant pressure and sealing in the vacuum container 1, and discharging the processed material or product from the vacuum container 1 through the discharge pipe 17. Specific embodiment two:

[0027] A vacuum constant pressure device, based on the basic structure of the specific embodiment 1, further discloses the following content: a pressure sensor can be set inside the vacuum container 1, so that the device can monitor the internal pressure changes during the working process in real time and accurately, effectively preventing the occurrence of abnormal pressure conditions. Once the pressure is detected to deviate from the preset range, personnel can respond quickly and take corresponding remedial measures, thereby greatly improving the safety performance of the device and ensuring the smooth progress of the experiment or production process.

[0028] In summary:

[0029] 1. A servo motor 9, a screw rod 10, a sealing cover 7, a connecting block 11, a fixed block 12 and a fixed groove 14 are used. Since the shapes of the fixed block 12 and the fixed groove 14 are adapted to each other, and the shapes of the fixed block 12 and the fixed groove 14 are arc-shaped, when a sealed connection is required, the servo motor 9 is turned on, thereby driving the screw rod 10 to rotate, thereby driving the sealing cover 7 and the connecting block 11 at the bottom thereof to rotate together, so that the bottom end of the fixed block 12 enters along the top end of the fixed groove 14. As the sealing cover 7 and the connecting block 11 rotate, the fixed block 12 is gradually embedded in the fixed groove 14, thereby quickly fixing the sealing cover 7 on the feed pipe 2 and the discharge pipe 17. The operation is simple and time-consuming.

[0030] It saves manpower and improves work efficiency and fluency.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum constant pressure device, comprising a vacuum container (1), characterized in that: A feed pipe (2) is provided on the surface of the vacuum container (1), a discharge pipe (17) is provided at the bottom of the vacuum container (1), a fixing groove (14) is provided inside the feed pipe (2) and the discharge pipe (17), a support frame (8) is provided on the surface of the vacuum container (1), a servo motor (9) is provided on the surface of the support frame (8), a screw rod (10) is provided at the output end of the servo motor (9), a guide rod (13) is provided on the surface of the support frame (8), a sealing cover (7) is provided on the surfaces of the screw rod (10) and the guide rod (13), a connecting block (11) is provided at the bottom of the sealing cover (7), and a fixing block (12) is provided on the surface of the connecting block (11).

2. A vacuum constant pressure device according to claim 1, characterized in that: A connecting pipe (3) is provided on the side of the vacuum container (1), a vacuum pump (5) is provided at the end of the connecting pipe (3), and a butterfly valve (4) is provided on the surface of the connecting pipe (3).

3. A vacuum constant pressure device according to claim 1, characterized in that: A cooling liquid inlet pipe (15) is provided at the bottom of the vacuum container (1), and a cooling liquid outlet pipe (16) is provided on the surface of the vacuum container (1).

4. A vacuum constant pressure device according to claim 1, characterized in that: A support block (6) is provided at the bottom of the vacuum container (1), and the support frame (8) is provided on the surface of the vacuum container (1) in an axisymmetric manner.

5. The vacuum constant pressure device according to claim 1, characterized in that: The end of the screw rod (10) is rotatably connected to the surface of the support frame (8), and the screw rod (10) is threadedly connected to the sealing cover (7).

6. The vacuum constant pressure device according to claim 1, characterized in that: The shape of the connecting block (11) is adapted to the feed pipe (2) and the discharge pipe (17), and the guide rod (13) is slidably connected to the sealing cover (7).

7. The vacuum constant pressure device according to claim 1, characterized in that: Four fixing blocks (12) are arranged in a circumferential array, and the shape and position of the fixing blocks (12) are adapted to the fixing grooves (14).

Images