Anti-icing cryogenic gate valve

Abstract

The utility model relates to the technical field of gate valve, concretely is a kind of low temperature gate valve of anti-icing, including gate valve body, the shell one is set to the gate valve body outside, the shell two is set to the shell one side, the inner wall of shell one and shell two is evenly provided with rubber sponge one, the clamping block is fixedly installed on the shell one side upper end, the clamping block upper end is provided with limit block;Beneficial effects are that: shell one and shell two are placed in the gate valve body bottom end, rotate shell one and shell two, clamping block is inserted into clamping groove, clamping block is inserted into clamping groove completely, limit block is clamped into sliding slot, two groups of limit post are clamped into limit hole hole, further reinforce the connection between shell three and shell four, the inner wall of shell one and shell two is evenly provided with rubber sponge one, the inner wall of shell four and shell three is evenly provided with rubber sponge two, the gate valve body can be protected to a certain extent, low temperature gate valve can be prevented to a certain extent from icing.

Description

Technical Field

[0001] This utility model relates to the field of gate valves, specifically a cryogenic gate valve that prevents icing. Background Technology

[0002] A gate valve is an opening and closing element consisting of a gate. The direction of movement of the gate is perpendicular to the direction of fluid flow. Gate valves can only be fully open or fully closed, and cannot be used for regulation or throttling. When using a cryogenic gate valve, the liquid inside the valve is more likely to freeze due to the low temperature.

[0003] In existing technologies, cryogenic gate valves are wrapped with cloth or thick insulating material to prevent the internal liquid from freezing and affecting their operation. This process is cumbersome and may affect usability. Therefore, this invention proposes an anti-freezing cryogenic gate valve to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a cryogenic gate valve that prevents icing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cryogenic gate valve for preventing icing, comprising a gate valve body, a housing 1 provided on the outer side of the gate valve body, a housing 2 provided on one side of the housing 1, a rubber-plastic sponge 1 provided on the inner wall of both the housing 1 and the housing 2, a locking block fixedly installed on the upper end of one side of the housing 1, and a limit block provided on the upper end of the locking block;

[0006] A slot is provided on the upper end of one side of the housing, and a pressing block is provided above the slot;

[0007] A fourth shell is fixedly installed on the upper end of the first shell, and a third shell is fixedly installed on the upper end of the second shell.

[0008] Preferably, both the inner walls of housing four and housing three are provided with rubber and plastic sponge two, limit holes are opened at both ends of one side of housing four, and limit posts are fixedly installed at both ends of one side of housing three.

[0009] Preferably, the upper end of the card block is provided with an installation groove, and a second spring is provided in the installation groove. The bottom end of the second spring is fixedly installed at the bottom of the installation groove, and the upper end of the second spring is fixedly installed at the lower end of the limiting block.

[0010] Preferably, the upper end of the card slot is provided with a sliding groove, the bottom end of the pressing block is slidably installed in the sliding groove, the top end of the pressing block is fixedly installed with a pressing plate, and springs are provided on both sides of the bottom end of the pressing plate.

[0011] Preferably, the top ends of the two sets of springs are respectively fixedly installed on the bottom walls of both sides of the pressing plate, and the bottom ends of the two sets of springs are respectively fixedly installed on the two side walls of the housing.

[0012] Preferably, a rotating block is fixedly installed on one bottom side of the second housing, and a rotating groove is provided on one bottom side of the first housing, and the rotating block is rotatably installed in the rotating groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: placing housing one and housing two at the bottom of the gate valve body, rotating housing one and housing two, inserting the locking block into the locking groove, and fully inserting the locking block into the locking groove, the limiting block is locked into the sliding groove. At this time, the two sets of limiting pins are locked into the limiting holes, further strengthening the connection between housing three and housing four. At the same time, the inner walls of housing one and housing two are provided with rubber and plastic sponge one, and the inner walls of housing four and housing three are provided with rubber and plastic sponge two, which can protect the gate valve body to a certain extent and prevent the low temperature gate valve from freezing to a certain extent. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of shell one and shell two of the present invention;

[0016] Figure 3 This is a partial sectional view of the structural shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the second structural shell of this utility model;

[0018] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 6 for Figure 4 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Gate valve body; 2. Shell 1; 3. Shell 2; 4. Shell 3; 5. Shell 4; 6. Pressing block; 7. Rubber and plastic sponge 1; 8. Rubber and plastic sponge 2; 9. Rotating block; 10. Rotating groove; 11. Pressing plate; 12. Spring 1; 13. Slide groove; 14. Locking groove; 15. Locking block; 16. Limiting block; 17. Spring 2; 18. Mounting groove; 19. Limiting post; 20. Limiting hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1-6 This utility model provides a technical solution: a cryogenic gate valve for preventing icing, including a gate valve body 1, a housing 2 on the outside of the gate valve body 1, a housing 3 on one side of the housing 2, rubber and plastic sponge 7 on the inner walls of both the housing 2 and the housing 3, a locking block 15 fixedly installed on the upper end of one side of the housing 2, and a limit block 16 on the upper end of the locking block 15; a slot 14 is opened on the upper end of one side of the housing 3, and a pressing block 6 is provided above the slot 14; a housing 4 5 is fixedly installed on the upper end of the housing 2, and a housing 3 4 is fixedly installed on the upper end of the housing 3.

[0023] In use, place housing 1 (2) and housing 2 (3) at the bottom of the gate valve body 1, rotate housing 1 (2) and housing 2 (3), and insert the locking block 15 fixedly installed on the upper side of housing 1 (2) into the locking groove 14 opened on the upper side of housing 2 (3). When the limiting block 16 contacts the locking groove 14, it is pushed and retracts into the mounting groove 18. At this time, the spring 2 (17) retracts in the mounting groove 18, and the locking block 15 is completely inserted into the locking groove 14. When the limiting block 16 is in the position of the sliding groove 13, the limiting block 16 is not under force, the spring 2 (17) rebounds, and the limiting block 16 is locked into the sliding groove 13. At this time, the two sets of limiting posts 19 are locked into the limiting holes 20, further reinforcing the connection between housing 3 (4) and housing 4 (5). At the same time, the inner walls of housing 1 (2) and housing 2 (3) are provided with rubber and plastic sponge 1 (7), and the inner walls of housing 4 (5) and housing 3 (4) are provided with rubber and plastic sponge 2 (8), which can protect the gate valve body 1 to a certain extent and prevent the low temperature gate valve from freezing to a certain extent.

[0024] Example 2: Based on Example 1, in order to facilitate the installation and disassembly of housing 1 2 and housing 2 3, the upper end of the locking block 15 is provided with a mounting groove 18, and a spring 2 17 is provided in the mounting groove 18. The bottom end of the spring 2 17 is fixedly installed at the bottom of the mounting groove 18, and the upper end of the spring 2 17 is fixedly installed at the lower end of the limiting block 16. The upper end of the locking groove 14 is provided with a sliding groove 13, and the bottom end of the pressing block 6 is slidably installed in the sliding groove 13. The top end of the pressing block 6 is fixedly installed with a pressing plate 11, and spring 1 12 is provided on both sides of the bottom end of the pressing plate 11. The top ends of the two sets of spring 1 12 are respectively fixedly installed on the bottom walls of the two sides of the pressing plate 11, and the bottom ends of the two sets of spring 1 12 are respectively fixedly installed on the side walls of housing 2 3.

[0025] Rotate housing 2 and housing 3, and insert the locking block 15 fixedly installed on the upper side of housing 2 into the locking groove 14 opened on the upper side of housing 3. When the limiting block 16 contacts the locking groove 14, it is pushed and retracts into the mounting groove 18. At this time, the spring 17 retracts in the mounting groove 18. When the limiting block 16 is in the position of the sliding groove 13, the limiting block 16 is not under force, the spring 17 rebounds, and the limiting block 16 is locked into the sliding groove 13, thus completing the connection between housing 2 and housing 3. By pressing the pressing plate 11, the pressing plate 11 drives the pressing block 6 to move downward. The bottom end of the pressing block 6 presses the limiting block 16 and presses it into the mounting groove 18. At this time, pulling housing 2 can open housing 2 and housing 3 for replacement or repair.

[0026] Example 3: Based on Example 2, in order to further fix it, rubber and plastic sponge 2 8 is provided on the inner wall of shell 4 5 and shell 3 4. Limiting holes 20 are opened at both ends of one side of shell 4 5, and limiting posts 19 are fixedly installed at both ends of one side of shell 3 4. A rotating block 9 is fixedly installed at the bottom end of one side of shell 2 3, and a rotating groove 10 is opened at the bottom end of one side of shell 1 2. The rotating block 9 is rotatably installed in the rotating groove 10.

[0027] At this time, the two sets of limiting posts 19 are locked into the limiting holes 20, further reinforcing the connection between shell 3 4 and shell 4 5.

[0028] In actual use, place housing 1 (2) and housing 2 (3) at the bottom of the gate valve body 1, rotate housing 1 (2) and housing 2 (3) to insert the locking block 15 into the locking groove 14, and fully insert the locking block 15 into the locking groove 14. The limiting block 16 is locked into the sliding groove 13. At this time, the two sets of limiting pins 19 are locked into the limiting holes 20, further reinforcing the connection between housing 3 (4) and housing 4 (5). At the same time, the inner walls of housing 1 (2) and housing 2 (3) are provided with rubber and plastic sponge 1 (7), and the inner walls of housing 4 (5) and housing 3 (4) are provided with rubber and plastic sponge 2 (8), which can provide a certain degree of protection for the gate valve body 1 and can prevent the low temperature gate valve from freezing to a certain extent.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cryogenic gate valve for preventing icing, comprising a gate valve body (1), characterized in that: The gate valve body (1) is provided with a housing 1 (2) on the outside, and a housing 2 (3) is provided on one side of the housing 1 (2). Both the inner walls of the housing 1 (2) and the housing 2 (3) are provided with rubber and plastic sponge 1 (7). A locking block (15) is fixedly installed on the upper end of one side of the housing 1 (2), and a limit block (16) is provided on the upper end of the locking block (15). A slot (14) is provided on the upper end of one side of the housing (3), and a pressing block (6) is provided above the slot (14). The upper end of the first shell (2) is fixedly installed with the fourth shell (5), and the upper end of the second shell (3) is fixedly installed with the third shell (4).

2. The cryogenic gate valve for preventing icing according to claim 1, characterized in that: Both the inner walls of the fourth shell (5) and the third shell (4) are provided with rubber and plastic sponge 2 (8). Limiting holes (20) are opened at both ends of one side of the fourth shell (5), and limiting posts (19) are fixedly installed at both ends of one side of the third shell (4).

3. The cryogenic gate valve for preventing icing according to claim 1, characterized in that: The upper end of the card block (15) is provided with an installation groove (18), and a second spring (17) is provided in the installation groove (18). The bottom end of the second spring (17) is fixedly installed at the bottom of the installation groove (18), and the upper end of the second spring (17) is fixedly installed at the lower end of the limiting block (16).

4. The cryogenic gate valve for preventing icing according to claim 1, characterized in that: The upper end of the card slot (14) is provided with a sliding groove (13), the bottom end of the pressing block (6) is slidably installed in the sliding groove (13), the top end of the pressing block (6) is fixedly installed with a pressing plate (11), and springs (12) are provided on both sides of the bottom end of the pressing plate (11).

5. A cryogenic gate valve for preventing icing according to claim 4, characterized in that: The top ends of the two sets of springs (12) are respectively fixedly installed on the bottom walls of the two sides of the pressing plate (11), and the bottom ends of the two sets of springs (12) are respectively fixedly installed on the side walls of the housing (3).

6. A cryogenic gate valve for preventing icing according to claim 1, characterized in that: A rotating block (9) is fixedly installed on one side of the bottom of the second housing (3), and a rotating groove (10) is opened on one side of the bottom of the first housing (2). The rotating block (9) is rotatably installed in the rotating groove (10).

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