Liquid level adjusting device of low-temperature storage tank

Abstract

The utility model discloses a liquid level adjusting device of a low-temperature storage tank, which relates to the technical field of low-temperature storage tank accessories and comprises a low-temperature storage tank main body, a motor is mounted on one side of the top of the low-temperature storage tank main body, the output end of the motor is connected with a screw rod, and a guide rod is fixed above the inside of the low-temperature storage tank main body. Through the arrangement of the spacer sleeve, the folding telescopic sleeve, the first supporting cylinder and the second supporting cylinder, the folding telescopic sleeve is matched with the spacer sleeve to block liquid, and the liquid can only flow into the first supporting cylinder from the top of the spacer sleeve through the through hole in the outer ring of the first supporting cylinder and then is discharged through the second supporting cylinder and the overflow port; the support is driven by the lead screw to move up and down so that the spacer sleeve can move up and down, the folding telescopic sleeve is driven to stretch when the spacer sleeve moves upwards, the folding telescopic sleeve is driven to retract when the spacer sleeve moves downwards, the overflow position is adjusted through displacement of the spacer sleeve, and then the liquid level is adjusted. Sealing is not needed, the liquid leakage phenomenon caused by abrasion is reduced, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature storage tank accessories, in particular to a liquid level regulating device for a low-temperature storage tank. Background Art

[0002] A cryogenic storage tank is a container for storing and transporting cryogenic liquids. It is mainly divided into vertical and horizontal types. It has the advantages of compact structure, low daily evaporation rate, small footprint, centralized control, safety and reliability, and easy operation and maintenance.

[0003] A liquid level height adjustment device with application number 202221427411.5 includes a main box and a fixed liquid tube, the fixed liquid tube is slidably installed in the main box, and also includes an adjustment component; the adjustment component includes a clamping frame, a placement table, a rotating screw, a button cap and a locking component; the clamping frame is fixedly connected to the fixed liquid tube, the placement table is fixedly connected to the main box, the rotating screw is threadedly connected to the clamping frame, and is rotatably connected to the placement table, and is rotatably installed on one side of the main box, the button cap is fixedly connected to the rotating screw, and is rotatably installed on the placement table, and the locking component is located on the side of the placement table close to the button cap, so that the fixed liquid rod can be adjusted to a specified height through the set components, and then different liquid level heights in the box can be adjusted, which greatly enhances the practicality of the entire device.

[0004] This technical solution uses a threaded structure to drive the fixed liquid tube to move up and down to adjust the height of the overflow outlet, thereby adjusting the liquid level. However, the up and down displacement of the fixed liquid tube increases the wear of the seal between the fixed liquid tube and the container, aggravating the seal wear and making the seal more easily damaged and leaking. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a liquid level adjustment device for a low-temperature storage tank to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid level adjustment device for a low-temperature storage tank, comprising a low-temperature storage tank body, a motor is installed on one side of the top of the low-temperature storage tank body, and a screw rod is connected to the output end of the motor, a guide rod is fixed to the upper part of the interior of the low-temperature storage tank body, and a bracket is connected between the guide rod and the screw rod, a stopper sleeve is connected to the bottom of the bracket, and a folding and telescopic sleeve is connected to the bottom of the stopper sleeve, a second support tube is fixed to the lower part of the interior of the low-temperature storage tank body, and a first support tube is fixed to the top of the second support tube, and an overflow port is opened in the middle of the bottom of the low-temperature storage tank body.

[0007] By adopting the above technical solution, the foldable telescopic sleeve cooperates with the block sleeve to block the liquid. The liquid can only flow into the first support tube through the through hole of the outer ring of the first support tube from the top of the block sleeve, and then be discharged through the second support tube and the overflow port. The bracket is driven up and down by the screw rod to cause the block sleeve to move up and down. When the block sleeve moves up, it drives the foldable telescopic sleeve to extend, and when the block sleeve moves down, it drives the foldable telescopic sleeve to contract. The overflow position is adjusted by the displacement of the block sleeve, thereby adjusting the liquid level.

[0008] Furthermore, the bracket is slidably connected to the guide rod and the cryogenic storage tank body respectively, and the bracket is threadedly connected to the lead screw.

[0009] By adopting the above technical solution, after the motor is started, the output end drives the screw rod to rotate, and after the screw rod rotates, it cooperates with the guide stop of the guide rod to make the bracket drive the stop sleeve to move up or down.

[0010] Furthermore, the stop sleeve is slidably connected to the first support tube and the second support tube respectively.

[0011] By adopting the above technical solution, the overflow position is adjusted by the displacement of the stopper sleeve, thereby adjusting the highest point of the liquid level. When the liquid level exceeds this highest point, it will overflow.

[0012] Furthermore, the foldable telescopic sleeve is made of stainless steel, and the bottom of the foldable telescopic sleeve is connected to the lower part of the interior of the low-temperature storage tank body.

[0013] By adopting the above technical solution, the folding and telescopic sleeve is extended when the stop sleeve moves upward, and the folding and telescopic sleeve is contracted when the stop sleeve moves downward.

[0014] Furthermore, the outer ring of the first support tube is provided with a plurality of through holes, and the second support tube is connected with the overflow port.

[0015] By adopting the above technical solution, the liquid flows from the top of the stopper sleeve through the through hole of the outer ring of the first support tube into the first support tube, and then is discharged through the second support tube and the overflow port.

[0016] Furthermore, a liquid inlet is connected to the lower part of one side of the cryogenic storage tank body, and a liquid outlet is connected to the lower part of the other side of the cryogenic storage tank body.

[0017] By adopting the above technical solution, the staff installs valves at the liquid inlet and outlet, and then inputs liquid into the low-temperature storage tank body through the liquid inlet. When the liquid needs to be output, the valve at the liquid outlet can be opened to discharge the liquid.

[0018] Furthermore, a window and a scale are respectively provided on the upper side of one side of the cryogenic storage tank body, and the window is made of acrylic material, and a pointer is fixed on one side of the bracket.

[0019] By adopting the above technical solution, the bracket drives the pointer to move up or down, and the staff can see the pointer through the window. Then the staff can match the pointer with the scale to see where the highest point of the current liquid level can be.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model blocks the liquid by arranging a blocking sleeve, a folding and telescopic sleeve, a first supporting tube and a second supporting tube through the cooperation of the folding and telescopic sleeve and the blocking sleeve. The liquid can only flow into the first supporting tube through the through hole of the outer ring of the first supporting tube from the top of the blocking sleeve and then be discharged through the second supporting tube and the overflow port. The bracket is driven up and down by a screw rod to cause the blocking sleeve to move up and down. When the blocking sleeve moves up, it drives the folding and telescopic sleeve to extend, and when the blocking sleeve moves down, it drives the folding and telescopic sleeve to contract. The overflow position is adjusted by the displacement of the blocking sleeve, thereby adjusting the liquid level. No sealing is required to reduce the leakage caused by wear and tear, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the support structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the first support tube structure of the utility model.

[0026] In the figure: 1. Low-temperature storage tank body; 2. Liquid inlet; 3. Liquid outlet; 4. Window; 5. Scale; 6. Pointer; 7. Motor; 8. Screw; 9. Guide rod; 10. Bracket; 11. Stop sleeve; 12. Folding and telescopic sleeve; 13. First support tube; 14. Second support tube; 15. Overflow port. DETAILED DESCRIPTION

[0027] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] Embodiment 1:

[0030] A liquid level adjustment device for a low temperature storage tank, such as Figure 2-Figure 4As shown, it includes a cryogenic storage tank body 1, a motor 7 is installed on one side of the top of the cryogenic storage tank body 1, a screw rod 8 is connected to the output end of the motor 7, a guide rod 9 is fixed on the upper part of the interior of the cryogenic storage tank body 1, a bracket 10 is connected between the guide rod 9 and the screw rod 8, the bracket 10 is respectively slidably connected to the guide rod 9 and the cryogenic storage tank body 1, the bracket 10 is threadedly connected to the screw rod 8, a stopper sleeve 11 is connected to the bottom of the bracket 10, the stopper sleeve 11 is respectively slidably connected to the first support tube 13 and the second support tube 14, after the motor 7 is started, the output end drives the screw rod 8 to rotate, and after the screw rod 8 rotates, the guide stop of the guide rod 9 is cooperated to make the bracket 10 drive the stopper sleeve 11 to move up or down; a folding telescopic sleeve 12 is connected to the bottom of the stopper sleeve 11, and the folding telescopic sleeve 12 is made of stainless steel material. The bottom of the folding telescopic sleeve 12 is connected to the lower part of the interior of the cryogenic storage tank body 1, and the folding telescopic sleeve 12 is connected to the bottom of the interior of the cryogenic storage tank body 1. The folding telescopic sleeve 12 cooperates with the stop sleeve 11 to block the liquid. When the liquid level is higher than the stop sleeve 11, the liquid flows from the top of the stop sleeve 11 through the through holes of the outer ring of the first support cylinder 13 into the first support cylinder 13; a second support cylinder 14 is fixed at the bottom of the low-temperature storage tank body 1, and a first support cylinder 13 is fixed on the top of the second support cylinder 14. The outer ring of the first support cylinder 13 is provided with multiple through holes, and the second support cylinder 14 is connected with the overflow port 15. The first support cylinder 13 and the second support cylinder 14 support the folding telescopic sleeve 12 to prevent the folding telescopic sleeve 12 from being squeezed and deformed inwardly due to the liquid pressure; an overflow port 15 is opened in the middle of the bottom of the low-temperature storage tank body 1, and the liquid flows from the top of the stop sleeve 11 through the through holes of the outer ring of the first support cylinder 13 into the first support cylinder 13, and then is discharged through the second support cylinder 14 and the overflow port 15.

[0031] See also Figure 1 and Figure 2 In the above embodiment, a liquid inlet 2 is connected to the lower side of the cryogenic storage tank body 1, and a liquid outlet 3 is connected to the lower side of the other side of the cryogenic storage tank body 1. The staff installs valves at the liquid inlet 2 and the liquid outlet 3, and then inputs liquid into the cryogenic storage tank body 1 through the liquid inlet 2. When liquid needs to be output, the valve at the liquid outlet 3 can be opened to discharge the liquid.

[0032] Embodiment 2:

[0033] On the basis of the above-mentioned embodiment 1, in order to facilitate the staff to check the highest point where the liquid level can exist, the following settings are now adopted.

[0034] See also Figure 1 and Figure 2 In the above embodiment, a window 4 and a scale 5 are respectively arranged on the upper side of the low-temperature storage tank body 1. The window 4 is made of acrylic material. A pointer 6 is fixed on one side of the bracket 10. The bracket 10 drives the pointer 6 to move up or down. The staff can see the pointer 6 through the window 4. Then, the staff can match the pointer 6 with the scale 5 to check where the highest point of the current liquid level can be.

[0035] The implementation principle of the utility model is as follows: first, the staff installs valves at the liquid inlet 2 and the liquid outlet 3, and then inputs liquid into the low-temperature storage tank body 1 through the liquid inlet 2. When the liquid needs to be output, the valve at the liquid outlet 3 can be opened to discharge the liquid;

[0036] At the same time, the folding telescopic sleeve 12 cooperates with the stop sleeve 11 to block the liquid. When the liquid level is higher than the stop sleeve 11, the liquid flows from the top of the stop sleeve 11 through the through hole of the outer ring of the first support cylinder 13 into the first support cylinder 13, and then is discharged through the second support cylinder 14 and the overflow port 15. At the same time, the first support cylinder 13 and the second support cylinder 14 support the folding telescopic sleeve 12 to prevent the folding telescopic sleeve 12 from being squeezed and deformed inwards due to the liquid pressure.

[0037] When it is necessary to adjust the highest point of the liquid level in the cryogenic storage tank body 1, the staff turns on the motor 7. After the motor 7 is started, the output end drives the screw 8 to rotate. After the screw 8 rotates, it cooperates with the guide stop of the guide rod 9 to make the bracket 10 drive the stopper sleeve 11 to move up or down. When the stopper sleeve 11 moves up, it drives the folding telescopic sleeve 12 to extend, and when the stopper sleeve 11 moves down, it drives the folding telescopic sleeve 12 to contract. The overflow position is adjusted by the displacement of the stopper sleeve 11, thereby adjusting the liquid level.

[0038] At the same time, the bracket 10 drives the pointer 6 to move up or down, and the staff can see the pointer 6 through the window 4. Then, the staff can match the pointer 6 with the scale 5 to check where the highest point of the current liquid level can be.

[0039] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A liquid level adjustment device for a cryogenic storage tank, comprising a cryogenic storage tank body (1), characterized in that: A motor (7) is installed on one side of the top of the cryogenic storage tank body (1), and a screw rod (8) is connected to the output end of the motor (7); a guide rod (9) is fixed at the top of the interior of the cryogenic storage tank body (1), and a bracket (10) is connected between the guide rod (9) and the screw rod (8); a stopper sleeve (11) is connected to the bottom of the bracket (10), and a folding telescopic sleeve (12) is connected to the bottom of the stopper sleeve (11); a second support tube (14) is fixed at the bottom of the interior of the cryogenic storage tank body (1), and a first support tube (13) is fixed on the top of the second support tube (14); and an overflow port (15) is opened in the middle of the bottom of the cryogenic storage tank body (1).

2. The liquid level adjustment device for a cryogenic storage tank according to claim 1, characterized in that: The support (10) is slidably connected to the guide rod (9) and the cryogenic storage tank body (1) respectively, and the support (10) is threadedly connected to the lead screw (8).

3. The liquid level adjustment device for a cryogenic storage tank according to claim 1, characterized in that: The stopper sleeve (11) is slidably connected to the first support tube (13) and the second support tube (14) respectively.

4. The liquid level adjustment device for a cryogenic storage tank according to claim 1, characterized in that: The foldable telescopic sleeve (12) is made of stainless steel, and the bottom of the foldable telescopic sleeve (12) is connected to the lower part of the interior of the low-temperature storage tank body (1).

5. The liquid level adjustment device for a cryogenic storage tank according to claim 3, characterized in that: The outer ring of the first support tube (13) is provided with a plurality of through holes, and the second support tube (14) is connected to the overflow port (15).

6. The liquid level adjustment device for a cryogenic storage tank according to claim 1, characterized in that: A liquid inlet (2) is connected to the lower side of one side of the low-temperature storage tank body (1), and a liquid outlet (3) is connected to the lower side of the other side of the low-temperature storage tank body (1).

7. The liquid level adjustment device for a cryogenic storage tank according to claim 6, characterized in that: A window (4) and a scale (5) are respectively arranged on the upper side of one side of the low-temperature storage tank body (1), and the window (4) is made of acrylic material. A pointer (6) is fixed on one side of the bracket (10).

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