Pipeline connecting structure of liquid nitrogen vaporizer

Abstract

The utility model discloses a liquid nitrogen vaporizer pipeline connecting structure which is characterized in that a connecting square column is connected to the corner of the rear side of the right part of a liquid nitrogen vaporizer body, a limiting seat is arranged above the right side of the connecting square column, connecting transverse plates are symmetrically connected to the front side of the connecting square column, and protective connecting seats are symmetrically connected to the right sides of the connecting transverse plates; the distance between the connecting transverse plates can be flexibly adjusted according to the length of a pipeline, the installation position of the pipeline is more flexible according to the size of the pipeline, and a vertical pipeline and a transverse pipeline can be comprehensively supported and fixed. The situation that the flexibility is reduced due to the fact that the pipeline of the liquid nitrogen vaporizer body is suspended on the front side of the liquid nitrogen vaporizer body or is fixed through a hoop is avoided, the connecting and installing structure is matched with different pipeline sizes, and the situation that workers or other external equipment are damaged when the pipeline of the liquid nitrogen vaporizer body leaks or bursts can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen vaporizers, in particular to a pipeline connection structure of a liquid nitrogen vaporizer. Background Art

[0002] A liquid nitrogen vaporizer is a device that heats liquid nitrogen to a vaporized state. After the vaporization is completed, the liquid nitrogen gas in the vaporizer needs to be filled. The existing vaporizers for liquid nitrogen filling can basically meet daily usage needs.

[0003] In the prior art, the external circulation pipe of a conventional liquid nitrogen vaporizer is fixedly connected to a frame outside the liquid nitrogen vaporizer. The connection structure of the pipe is directly suspended in the air or installed on the outer wall of the frame through a clamp. As a result, the overall pipe structure has insufficient installation flexibility and lacks an external protective structure, posing a safety hazard. For example, a burst or leakage at the pipe connection end(s) may cause harm to workers or other external equipment.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In response to the problems in the related art, the present invention proposes a liquid nitrogen vaporizer pipeline connection structure to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solution adopted by the present invention is as follows: a liquid nitrogen vaporizer pipeline connection structure, including a liquid nitrogen vaporizer body, a connecting square column is fixedly connected to the right rear corner of the liquid nitrogen vaporizer body, a limit seat is provided on the upper right side of the connecting square column, a connecting horizontal plate is symmetrically connected to the front side of the connecting square column, and a protective connecting seat is symmetrically connected to the right side of the connecting horizontal plate.

[0007] As a further optimization, a servo motor is provided above the wall cavity of the connecting square column, a rectangular groove is dug on the front side of the connecting square column, a first screw is connected to the bottom side of the inner wall of the rectangular groove through a bearing, and a second screw is fixedly connected to the top end of the first screw.

[0008] As a further optimization, guide rods are respectively provided at the four corners between the inner walls of the rectangular groove, both ends of the guide rods are fixedly connected to the inner walls of the rectangular groove, and the output shaft of the servo motor is fixedly connected to the top end of the second screw.

[0009] As a further optimization, a first lifting block is sleeved on the outside of the first screw and the guide rod, and a second lifting block is sleeved on the outside of the second screw and the guide rod. The front sides of the first lifting block and the second lifting block are respectively fixedly connected to the rear side of the connecting horizontal plate.

[0010] As a further optimization, the first lifting block and the second lifting block are connected with a first nut inside through a first ball bearing, and are threadedly connected to the first screw and the second screw through the first ball bearing and the first nut respectively.

[0011] As a further optimization, a rectangular opening is dug on the upper right side of the connecting square column, and the rectangular opening is connected to the inside of the rectangular groove. A third lifting block is sleeved on the outer side of the second screw and the guide rod, and the third lifting block is fixedly connected to the limit seat.

[0012] As a further optimization, the interior of the third lifting block is connected to a second nut through a second ball bearing, and the third lifting block is threadedly connected to the second screw through the second ball bearing and the second nut, and a U-shaped limit groove is dug on the right side of the limit seat.

[0013] As a further optimization, the protective connecting seat includes a fixed block and a movable block. The movable block is arranged on the outside of the fixed block, and the fixed block is fixedly connected to the outside of the connecting horizontal plate. A semicircular groove is dug on the opposite side of the fixed block and the movable block, and a protective baffle is movably provided between the movable blocks. Bolts are respectively provided at the four corners of the outer wall of the movable block, and the bolts are connected to the four corners of the outside of the fixed block through matching threads.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the spacing of the connecting horizontal plates can be flexibly adjusted according to the length of the pipeline, the installation position of the pipeline can be made more flexible according to the size of the pipeline, the vertical pipeline and the horizontal pipeline can be fully supported and fixed, and the flexibility is reduced due to the liquid nitrogen vaporizer body pipeline being suspended on its front side or fixed by a clamp, so that the connection and installation structure is adapted to different pipeline sizes, which can effectively prevent the liquid nitrogen vaporizer body pipeline from leaking or bursting and causing harm to workers or other external equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the rectangular groove of the present invention;

[0018] Figure 3This is a schematic diagram of the internal structure of the rectangular opening of the present invention;

[0019] Figure 4 This is a schematic diagram of the appearance structure of the protective connecting seat of the present utility model.

[0020] In the figure: 1. Liquid nitrogen vaporizer body; 2. Connecting square column; 3. Limit seat; 4. Connecting cross plate; 5. Protective connecting seat; 6. Servo motor; 7. Rectangular groove; 8. First screw; 9. Second screw; 10. Guide rod; 11. First lifting block; 12. Second lifting block; 13. Rectangular opening; 14. Third lifting block; 15. U-shaped limit groove; 16. Fixed block; 17. Movable block; 18. Semicircular groove; 19. Protective baffle. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] Example 1:

[0023] like Figure 1-4As shown, the liquid nitrogen vaporizer pipeline connection structure includes a liquid nitrogen vaporizer body 1, a connecting square column 2 is fixedly connected to the right rear corner of the liquid nitrogen vaporizer body 1, a limit seat 3 is provided on the upper right side of the connecting square column 2, a connecting cross plate 4 is symmetrically connected to the front side of the connecting square column 2, and a protective connecting seat 5 is symmetrically connected to the right side of the connecting cross plate 4. A servo motor 6 is provided above the wall cavity of the connecting square column 2, a rectangular groove 7 is dug on the front side of the connecting square column 2, a first screw 8 is connected to the bottom side of the inner wall of the rectangular groove 7 through a bearing, and the top of the first screw 8 is fixedly connected to the second screw 9. Guide rods 10 are respectively provided at the four corners between the inner walls of the rectangular groove 7, and the two ends of the guide rod 10 are fixedly connected to the inner wall of the rectangular groove 7. The output shaft of the servo motor 6 is fixedly connected to the top of the second screw 9. A first lifting block 11 is sleeved on the outside of the first screw 8 and the guide rod 10, and a second lifting block 12 is sleeved on the outside of the second screw 9 and the guide rod 10. The front sides of the first lifting block 11 and the second lifting block 12 are respectively fixedly connected to the rear of the connecting cross plate 4. The first lifting block 11 and the second lifting block 12 are connected to the first nut through the first ball bearing, and are threadedly connected with the first screw 8 and the second screw 9 respectively through the first ball bearing and the first nut. The outer walls of the first screw 8 and the second screw 9 are respectively provided with a positive thread groove and a reverse thread groove. The servo motor 6 is started, and the output shaft of the servo motor 6 drives the second screw 9 to rotate, so that the second screw 9 drives the first screw 8 to rotate, so that the first screw 8 and the first lifting block 11 outside the guide rod 10, the second screw 9 and the second lifting block 12 outside the guide rod 10 simultaneously drive the connecting cross plate 4 to move inward. The spacing of the connecting cross plates 4 can be flexibly adjusted according to the length of the pipeline. According to the size of the pipeline, the installation position of the pipeline is more flexible. When the pipeline is disassembled and the internal structure of the liquid nitrogen vaporizer body 1 needs to be cleaned or repaired, the upper and lower connecting cross plates 4 can be completely merged and fitted to avoid the connection structure of the pipeline blocking the interior of the liquid nitrogen vaporizer body 1, and the operation is more convenient.

[0024] Example 2:

[0025] The liquid nitrogen vaporizer pipeline connection structure has a rectangular through-hole 13 dug on the upper right side of the connecting square column 2, which is connected to the inside of the rectangular groove 7. A third lifting block 14 is sleeved on the upper outer side of the second screw 9 and the guide rod 10. The third lifting block 14 is fixedly connected to the limit seat 3. The inside of the third lifting block 14 is connected to the second nut through a second ball bearing. The third lifting block 14 is threadedly connected to the second screw 9 through the second ball bearing and the second nut. A U-shaped limiting groove 15 is dug on the right side of the limit seat 3. According to the length of the vertically installed pipeline, the height of the limit seat 3 can be adjusted by the third lifting block 14 during the rotation of the second screw 9. While adjusting the position of the connecting horizontal plate 4, the limit seat 3 is adapted to the size of the pipeline installed on the connecting horizontal plate 4, so that the vertical pipeline can be installed and fixed. The vertical pipeline and the horizontal pipeline can be fully supported and fixed to avoid the liquid nitrogen vaporizer body 1 pipeline being suspended on its front side or fixed by a clamp, resulting in a decrease in flexibility, so that the connecting installation structure can adapt to different pipeline sizes.

[0026] Example 3:

[0027] Liquid nitrogen vaporizer pipeline connection structure, its protective connection seat 5 includes a fixed block 16 and a movable block 17. The movable block 17 is arranged on the outside of the fixed block 16. The fixed block 16 is fixedly connected to the outside of the connecting horizontal plate 4. A semicircular groove 18 is dug on the opposite side of the fixed block 16 and the movable block 17, and a protective baffle 19 is provided between the movable blocks 17. Bolts are respectively provided at the four corners of the outer wall of the movable block 17, and the bolts are connected with the four corners of the outer side of the fixed block 16 through the matching threads. When the horizontal pipeline is placed on the connecting horizontal plate 4 On the front side, place the pipeline in the semicircular groove 18 on the front side of the fixed block 16, then cover the pipeline with the semicircular groove 18 on the front side of the movable block 17, and then connect and fix the fixed block 16 and the movable block 17 with bolts. The horizontal pipeline can be assembled and fixed, and before tightening the mounting bolts, the protective baffles 19 are respectively embedded in the movable blocks 17 so that the protective baffles 19 are blocked on the outside of the horizontal pipeline, which can effectively prevent the pipeline of the liquid nitrogen vaporizer body 1 from leaking or bursting and causing harm to the staff or other external equipment.

[0028] When this device is in use, the outer walls of the first screw 8 and the second screw 9 are respectively provided with a positive thread groove and a reverse thread groove. The servo motor 6 is started, and the output shaft of the servo motor 6 drives the second screw 9 to rotate, so that the second screw 9 drives the first screw 8 to rotate, so that the first screw 8 and the first lifting block 11 outside the guide rod 10, and the second screw 9 and the second lifting block 12 outside the guide rod 10 simultaneously drive the connecting cross plate 4 to move inward. The spacing of the connecting cross plates 4 can be flexibly adjusted according to the length of the pipeline. When the transverse pipeline is placed on the front side of the connecting cross plate 4, the pipeline is placed in the semicircular groove 18 on the front side of the fixed block 16, and then the semicircular groove 18 on the front side of the movable block 17 is covered to the pipeline. The fixed block 16 and the movable block 17 are then connected and fixed by bolts. The transverse pipeline can be assembled and fixed, and before screwing the mounting bolts, the protective baffles 19 are respectively embedded in the movable blocks 17 so that the protective baffles 19 are blocked on the outside of the transverse pipeline.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid nitrogen vaporizer pipeline connection structure, comprising a liquid nitrogen vaporizer body (1), characterized in that: A connecting square column (2) is connected to the right rear corner of the liquid nitrogen vaporizer body (1); a limit seat (3) is provided above the right side of the connecting square column (2); a connecting horizontal plate (4) is symmetrically connected to the front side of the connecting square column (2); and a protective connecting seat (5) is symmetrically connected to the right side of the connecting horizontal plate (4); A servo motor (6) is provided above the wall cavity of the connecting square column (2), a rectangular groove (7) is dug on the front side of the connecting square column (2), a first screw rod (8) is connected to the bottom side of the inner wall of the rectangular groove (7) through a bearing, and a second screw rod (9) is connected to the top of the first screw rod (8); guide rods (10) are respectively provided at the four corners between the inner walls of the rectangular groove (7), and the two ends of the guide rods (10) are fixedly connected to the inner walls of the rectangular groove (7), and the output shaft of the servo motor (6) is fixedly connected to the top of the second screw rod (9); The first lifting block (11) is sleeved on the outer side of the first screw rod (8) and the guide rod (10), and the second lifting block (12) is sleeved on the outer side of the second screw rod (9) and the guide rod (10). The front sides of the first lifting block (11) and the second lifting block (12) are respectively fixedly connected to the rear side of the connecting horizontal plate (4); the first lifting block (11) and the second lifting block (12) are connected to the first nut through the first ball bearing, and are threadedly connected to the first screw rod (8) and the second screw rod (9) through the first ball bearing and the first nut.

2. The liquid nitrogen vaporizer pipeline connection structure according to claim 1, characterized in that: A rectangular opening (13) is excavated above the right side of the connecting square column (2), and the rectangular opening (13) is connected to the inside of the rectangular groove (7). A third lifting block (14) is sleeved above the outer side of the second screw rod (9) and the guide rod (10), and the third lifting block (14) is fixedly connected to the limit seat (3).

3. The liquid nitrogen vaporizer pipeline connection structure according to claim 2, characterized in that: The interior of the third lifting block (14) is connected to a second nut via a second ball bearing. The third lifting block (14) is threadedly connected to the second screw rod (9) via the second ball bearing and the second nut. A U-shaped limiting groove (15) is excavated on the right side of the limiting seat (3).

4. The liquid nitrogen vaporizer pipeline connection structure according to claim 1, characterized in that: The protective connecting seat (5) comprises a fixed block (16) and a movable block (17). The movable block (17) is arranged on the outside of the fixed block (16). The fixed block (16) is connected to the outside of the connecting transverse plate (4). A semicircular groove (18) is dug on the opposite side of the fixed block (16) and the movable block (17). A protective baffle (19) is movably provided between the movable blocks (17). Bolts are respectively provided at the four corners of the outer wall of the movable block (17). The bolts are connected to the four corners of the outer side of the fixed block (16) through matching threads.

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