Negative pressure vacuum sealing device

Abstract

The utility model relates to the technical field of land sampling, in particular to a negative pressure vacuum sealing device which comprises a tank body, the tank body comprises a vacuum sealing tank, and a tank cover is arranged at the top end of the vacuum sealing tank. According to the vacuum sealing tank, the tank cover and the vacuum sealing tank can be fixed and positioned through cooperation of the positioning rods and the positioning grooves, dislocation can be avoided when the tank cover is installed, insertion and separation of the insertion rods and the insertion grooves can be achieved through movement of the insertion rods on the inner side of the second connecting ring, and the sealing effect of the vacuum sealing tank is improved. According to the vacuum sealing tank, the first connecting ring and the second connecting ring can be locked and detached, the tank cover can be conveniently and rapidly installed and detached, and then the vacuum sealing tank can be conveniently used; when the positioning rod and the second connecting ring are locked, the first sealing gasket and the second sealing gasket can be extruded, and then the sealing performance between the vacuum sealing tank and the tank cover can be guaranteed.

Description

Technical Field

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

[0002] Vacuum sealing technology is a technology that uses a vacuum environment to achieve the sealing of objects. Under a vacuum state, by effectively removing gas and water molecules, it can protect objects from pollution and corrosion from the external environment and maintain the original state and performance of the objects. A negative pressure vacuum sealing device is a device that evacuates the outside air to form a low-pressure vacuum environment to achieve a sealing effect. The principle is to use a vacuum pump to extract the air inside the sealed chamber, reduce the air pressure inside the sealed chamber, and form a negative pressure. In this way, the air pressure inside the sealed chamber will be less than the external air pressure, thereby forming a sealing effect in a closed state. The negative pressure vacuum sealing device can prevent outside air from entering the sealed chamber to prevent objects from being affected by oxidation, deterioration, etc. At the same time, it can also prevent harmful substances from leaking into the external environment, which has a positive effect on protecting the environment and personnel health.

[0003] When the negative pressure vacuum sealing device is used, a sealed connection is usually required between the tank body and the tank cover of the negative pressure vacuum sealing device. In order to ensure the sealing between the tank body and the tank cover, it is usually necessary to lock the tank body and the tank cover. In the prior art, the locking is generally performed by bolt fixing. Corresponding screw holes are designed on the edges of the tank body and the tank cover, and bolts are passed through the screw holes on the tank cover and screwed into the screw holes on the tank body, thereby achieving a tight connection between the tank body and the tank cover. Although the bolt fixing method can achieve a sealed connection between the tank body and the tank cover, since the bolts are relatively small, tools are required during operation, and the operation needs to be performed multiple times, which makes the connection between the tank body and the tank cover not quick and convenient enough. Therefore, in order to solve the above problems, a negative pressure vacuum sealing device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a negative pressure vacuum sealing device to solve the problem that although the bolt fixing method mentioned in the above background technology can achieve a sealed connection between the tank body and the tank cover, since the bolts are relatively small, tools need to be used during operation, and the operation needs to be performed multiple times, which makes the connection between the tank body and the tank cover not quick and convenient enough.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure vacuum sealing device, comprising a tank body, the tank body comprising a vacuum sealed tank, a tank cover is arranged at the top of the vacuum sealed tank, a negative pressure pump is arranged on one side of the vacuum sealed tank, a vacuum pipe is fixedly connected to the surface of the vacuum sealed tank, the negative pressure pump is connected to the vacuum sealed tank through the vacuum pipe, a pressure gauge is fixedly installed at the top of the tank cover, a discharge port is arranged at the bottom of the vacuum sealed tank, a first sealing gasket is fixedly connected to the lower surface of the tank cover, and a second sealing gasket is fixedly connected to the upper surface of the vacuum sealed tank;

[0006] A connecting mechanism is provided on the surface of the can cover, and the connecting mechanism includes a first connecting ring, the first connecting ring is fixedly connected to the surface of the can cover, a positioning rod is fixedly connected to the lower surface of the first connecting ring, a second connecting ring is fixedly connected to the surface of the vacuum sealing can, a positioning groove is provided on the inner side of the second connecting ring, an insertion rod is movably connected to the inner side of the second connecting ring, and a slot is provided on the surface of the positioning rod.

[0007] Preferably, the connecting mechanism further comprises a connecting block, the connecting block is movably connected to the surface of the insertion rod, a spring is fixedly connected to the surface of the insertion rod, and a stopper is fixedly connected to the surface of the second connecting ring.

[0008] Preferably, the positioning rods are in groups of six and fixedly connected to the first connecting ring, the positioning grooves are in groups of six and opened on the inner side of the second connecting ring, and the insertion rods are in groups of six and movably connected to the second connecting ring.

[0009] Preferably, the connecting block is movably connected to the plug rod via a rotating shaft, one end of the spring is fixedly connected to the second connecting ring, and the other end of the spring is fixedly connected to the plug rod.

[0010] Preferably, a wall scraping mechanism is provided on the inner side of the vacuum sealed tank, and the wall scraping mechanism includes a rotating rod, and the rotating rod is movably connected to the inner side of the tank cover, a motor is fixedly installed on the top of the tank cover, the rotating rod and the output end of the motor are fixedly connected, a connecting rod is fixedly connected to the surface of the rotating rod, the end of the connecting rod away from the rotating rod is fixedly connected to a first scraper, and the bottom end of the rotating rod is fixedly connected to a second scraper.

[0011] Preferably, one end of the connecting rod is fixedly connected to the rotating rod, the other end of the connecting rod is fixedly connected to the first scraper, and the second scraper is fixedly connected to the first scraper.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the cooperation of the positioning rod and the positioning groove, the tank cover and the vacuum sealed tank can be positioned, and misalignment can be avoided when the tank cover is installed. The insertion rod moves on the inner side of the second connecting ring, so that the insertion rod and the slot can be engaged and separated, and then the positioning rod can be limited and released, so that the first connecting ring and the second connecting ring can be locked and disassembled, which is convenient for quick installation and disassembly of the tank cover, and then the vacuum sealed tank can be used. At the same time, when the insertion rod and the slot are engaged, the locking of the positioning rod and the second connecting ring will squeeze the first sealing gasket and the second sealing gasket, so as to ensure the sealing between the vacuum sealed tank and the tank cover.

[0014] 2. By driving the rotating rod to rotate through the motor, the connecting rod can drive the first scraper to rotate, and the rotating rod can drive the second scraper to rotate. The rotation of the first scraper and the second scraper can rub against the side walls and the bottom of the vacuum sealed tank, so that the inner wall of the vacuum sealed tank can be scraped, which can avoid the material from remaining on the inner wall of the vacuum sealed tank, and then the inner wall of the vacuum sealed tank can be scraped and cleaned, which is convenient for cleaning the vacuum sealed tank and realizes the cleaning of the vacuum sealed tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional front view of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 3 It is a front view and cross-sectional dynamic schematic diagram of the structure of the first connecting ring and the inserting rod of the utility model;

[0018] Figure 4 It is a schematic side view of the structure of the positioning rod and the connecting block of the utility model;

[0019] Figure 5 It is a side view dynamic schematic diagram of the structure of the positioning rod and the connecting block of the utility model;

[0020] Figure 6 It is a schematic top view and cross-sectional view of the structure of the positioning rod and the second scraper of the utility model.

[0021] In the figure: 1. vacuum sealing tank; 11. tank cover; 12. negative pressure pump; 13. exhaust pipe; 14. pressure gauge; 15. discharge port; 16. first sealing gasket; 17. second sealing gasket; 2. first connecting ring; 21. positioning rod; 22. second connecting ring; 23. positioning groove; 24. insertion rod; 25. slot; 26. connecting block; 27. spring; 28. stopper; 3. rotating rod; 31. motor; 32. connecting rod; 33. first scraper; 34. second scraper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 , an embodiment provided by the utility model:

[0024] The negative pressure pump 12, pressure gauge 14 and motor 31 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0025] A negative pressure vacuum sealing device comprises a tank body, the tank body comprises a vacuum sealed tank 1, a tank cover 11 is arranged at the top of the vacuum sealed tank 1, a negative pressure pump 12 is arranged at one side of the vacuum sealed tank 1, an exhaust pipe 13 is fixedly connected to the surface of the vacuum sealed tank 1, the negative pressure pump 12 is connected to the vacuum sealed tank 1 through the exhaust pipe 13, a pressure gauge 14 is fixedly installed at the top of the tank cover 11, a discharge port 15 is arranged at the bottom of the vacuum sealed tank 1, a first sealing gasket 16 is fixedly connected to the lower surface of the tank cover 11, and a second sealing gasket 17 is fixedly connected to the upper surface of the vacuum sealed tank 1. Through the arrangement of the first sealing gasket 16 and the second sealing gasket 17, the connection between the vacuum sealed tank 1 and the tank cover 11 can be sealed, through the arrangement of the negative pressure pump 12, the air in the vacuum sealed tank 1 can be extracted through the exhaust pipe 13, and the vacuum in the vacuum sealed tank 1 can be realized, and through the arrangement of the pressure gauge 14, the pressure in the vacuum sealed tank 1 can be monitored, so that the vacuum pump 12 can be controlled to exhaust the air in the vacuum sealed tank 1;

[0026] A connecting mechanism is provided on the surface of the tank cover 11, and the connecting mechanism includes a first connecting ring 2, which is fixedly connected to the surface of the tank cover 11, a positioning rod 21 is fixedly connected to the lower surface of the first connecting ring 2, and a second connecting ring 22 is fixedly connected to the surface of the vacuum sealing tank 1, a positioning groove 23 is provided on the inner side of the second connecting ring 22, and an insertion rod 24 is movably connected to the inner side of the second connecting ring 22, and a slot 25 is provided on the surface of the positioning rod 21. By the movement of the insertion rod 24 on the inner side of the second connecting ring 22 and the insertion into the slot 25, the positioning rod 21 can be limited, and then the first connecting ring 2 and the second connecting ring 22 can be locked, so that the vacuum sealing tank 1 and the tank cover 11 are connected and fixed, so that the tank cover 11 is fixedly fixed, and at the same time, through the cooperation of the first sealing gasket 16 and the second sealing gasket 17, the tank cover 11 and the vacuum sealing tank 1 can be sealed. Connection connection.

[0027] Furthermore, the connecting mechanism also includes a connecting block 26, which is movably connected to the surface of the insertion rod 24, and a spring 27 is fixedly connected to the surface of the insertion rod 24. A stopper 28 is fixedly connected to the surface of the second connecting ring 22. Through the setting of the stopper 28, after the insertion rod 24 and the slot 25 are separated, the stopper 28 can block the connecting block 26, so that the insertion rod 24 will not rebound and reset under the action of the spring 27, thereby releasing the limit of the positioning rod 21 and facilitating the removal of the tank cover 11.

[0028] Furthermore, the positioning rods 21 are in groups of six and fixedly connected to the first connecting ring 2, the positioning grooves 23 are in groups of six and are opened on the inner side of the second connecting ring 22, and the insertion rods 24 are in groups of six and movably connected to the second connecting ring 22. Through the setting of the positioning rods 21 and the positioning grooves 23, the connection between the first connecting ring 2 and the second connecting ring 22 can be positioned, thereby facilitating better installation of the tank cover 11.

[0029] Furthermore, the connecting block 26 is movably connected to the plug rod 24 via a rotating shaft, one end of the spring 27 is fixedly connected to the second connecting ring 22, and the other end of the spring 27 is fixedly connected to the plug rod 24. Through the setting of the spring 27, the plug rod 24 can be reset, and then the plug rod 24 and the slot 25 can be inserted into each other, thereby facilitating the fixation between the first connecting ring 2 and the second connecting ring 22.

[0030] Furthermore, a scraping mechanism is provided on the inner side of the vacuum sealed tank 1, and the scraping mechanism includes a rotating rod 3, which is movably connected to the inner side of the tank cover 11, and a motor 31 is fixedly installed on the top of the tank cover 11, and the rotating rod 3 and the output end of the motor 31 are fixedly connected, and a connecting rod 32 is fixedly connected to the surface of the rotating rod 3, and the end of the connecting rod 32 away from the rotating rod 3 is fixedly connected to a first scraper 33, and the bottom end of the rotating rod 3 is fixedly connected to a second scraper 34. By rotating the rotating rod 3, the connecting rod 32 can drive the first scraper 33 and the second scraper 34 to rotate accordingly, so that the material remaining on the inner wall of the vacuum sealed tank 1 can be scraped off by the first scraper 33 and the second scraper 34.

[0031] Furthermore, one end of the connecting rod 32 is fixedly connected to the rotating rod 3, the other end of the connecting rod 32 is fixedly connected to the first scraper 33, and the second scraper 34 is fixedly connected to the first scraper 33. Through the arrangement of the first scraper 33 and the second scraper 34, the rotating rod 3 can rotate with the second scraper 3, thereby being able to scrape the inner wall of the vacuum sealing tank 1.

[0032] Working principle: When in use, place the can cover 11 on the top of the vacuum sealed can 1, and insert the positioning rod 21 and the positioning groove 23 into correspondence. During the insertion of the positioning rod 21, the insertion rod 24 will be squeezed, so that the insertion rod 24 can move on the inner side of the second connecting ring 22. At this time, the spring 27 is in a contracted state. When the positioning rod 21 makes the slot 25 face the insertion rod 24 during the insertion process, the insertion rod 24 will reset under the rebound effect of the spring 27, so that the insertion rod 24 and the slot 25 can be plugged in. At this time, the first connecting ring 2 and the second connecting ring 22 are locked, so that the can cover 11 is installed on the vacuum sealed can 1, and the first sealing gasket 16 and the second sealing gasket are locked. The sealing gasket 17 is tightly connected to achieve the sealing of the vacuum sealing tank 1 and the tank cover 11; when the tank cover 11 needs to be removed, the connecting block 26 is pulled to make the insertion rod 24 move under the action of the connecting block 26 and separate from the slot 25, so as to release the limit of the positioning rod 21. At this time, the spring 27 is in a contracted state, and then the connecting block 26 is rotated to make the connecting block 26 move through the rotating shaft, and rotate from a horizontal state to a vertical state, and then the connecting block 26 is released. The connecting block 26 is reset under the rebound action of the spring 27, and then the stopper 28 blocks the connecting block 26, so that the positioning rod 21 can be drawn out of the positioning groove 23, and the tank cover 11 can be removed;

[0033] The motor 31 is electrically connected to an external power source. The staff starts the motor 31 by pressing the switch. The motor 31 drives the rotating rod 3 to rotate. The connecting rod 32 drives the first scraper 33 to rotate under the action of the rotating rod 3. The second scraper 34 also rotates under the action of the rotating rod 3. The first scraper 33 and the second scraper 34 can scrape the side walls and the bottom of the vacuum sealing tank 1, thereby achieving the effect of scraping and cleaning the walls.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A negative pressure vacuum sealing device, comprising a tank body, the tank body comprising a vacuum sealed tank (1), a tank cover (11) being arranged at the top end of the vacuum sealed tank (1), a negative pressure pump (12) being arranged at one side of the vacuum sealed tank (1), a suction pipe (13) being fixedly connected to the surface of the vacuum sealed tank (1), the negative pressure pump (12) being connected to the vacuum sealed tank (1) via the suction pipe (13), a pressure gauge (14) being fixedly installed at the top end of the tank cover (11), a discharge port (15) being arranged at the bottom end of the vacuum sealed tank (1), a first sealing gasket (16) being fixedly connected to the lower surface of the tank cover (11), and a second sealing gasket (17) being fixedly connected to the upper surface of the vacuum sealed tank (1); It is characterized in that The surface of the can cover (11) is provided with a connection mechanism, and the connection mechanism comprises a first connection ring (2), the first connection ring (2) is fixedly connected to the surface of the can cover (11), a positioning rod (21) is fixedly connected to the lower surface of the first connection ring (2), a second connection ring (22) is fixedly connected to the surface of the vacuum sealed can (1), a positioning groove (23) is provided on the inner side of the second connection ring (22), an insertion rod (24) is movably connected to the inner side of the second connection ring (22), and a slot (25) is provided on the surface of the positioning rod (21).

2. A negative pressure vacuum sealing device according to claim 1, characterized in that: The connection mechanism also includes a connection block (26), the connection block (26) is movably connected to the surface of the insertion rod (24), the surface of the insertion rod (24) is fixedly connected to a spring (27), and the surface of the second connection ring (22) is fixedly connected to a stopper (28).

3. A negative pressure vacuum sealing device according to claim 1, characterized in that: The positioning rods (21) are in six groups and fixedly connected to the first connecting ring (2); the positioning grooves (23) are in six groups and are opened on the inner side of the second connecting ring (22); and the insertion rods (24) are in six groups and movably connected to the second connecting ring (22).

4. A negative pressure vacuum sealing device according to claim 2, characterized in that: The connecting block (26) is movably connected to the insertion rod (24) via a rotating shaft, one end of the spring (27) is fixedly connected to the second connecting ring (22), and the other end of the spring (27) is fixedly connected to the insertion rod (24).

5. The negative pressure vacuum sealing device according to claim 1, characterized in that: A wall scraping mechanism is arranged on the inner side of the vacuum sealed tank (1), and the wall scraping mechanism comprises a rotating rod (3), the rotating rod (3) is movably connected to the inner side of the tank cover (11), a motor (31) is fixedly mounted on the top of the tank cover (11), the rotating rod (3) and the output end of the motor (31) are fixedly connected, a connecting rod (32) is fixedly connected to the surface of the rotating rod (3), one end of the connecting rod (32) away from the rotating rod (3) is fixedly connected to a first scraper (33), and the bottom end of the rotating rod (3) is fixedly connected to a second scraper (34).

6. A negative pressure vacuum sealing device according to claim 5, characterized in that: One end of the connecting rod (32) is fixedly connected to the rotating rod (3), the other end of the connecting rod (32) is fixedly connected to the first scraper (33), and the second scraper (34) is fixedly connected to the first scraper (33).

Images