Valve anti-freezing protection device based on absorption heat pump secondary network heat supply

Abstract

The utility model discloses a valve anti-freezing protection device based on absorption heat pump secondary network heat supply, which comprises a locking mechanism used for locking and fixing a first fixing block and a second fixing block. During installation, a worker only needs to sleeve the valve body with the anti-freezing cover, then inserts an insertion block on the side wall of a second fixing block into a through groove formed in the side wall of a first fixing block, and screws out a clamping block at the bottom end of a locking pin from the interior of a storage groove through a screwdriver; a locking pin penetrates through a containing groove, a through groove and a through hole in the surface of an inserting block to be attached to the inner bottom face of a clamping groove, at the moment, a worker rotates the locking pin through a tool, a clamping block on the outer arc face of the locking pin is screwed into the clamping groove to be connected with the clamping groove in a clamped mode, and then the two sets of anti-freezing covers are fixed; and the anti-freezing cover can be disassembled and the valve body in the anti-freezing cover can be overhauled, replaced and the like by reverse operation of a worker, so that more time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of valve protection devices, specifically a valve antifreeze protection device based on absorption heat pump secondary network heating. Background Technology

[0002] In an absorption heat pump secondary network heating system, valves are used to control the flow of the medium, regulate the flow rate / pressure, and ensure the safe and stable operation of the system.

[0003] During the use of valves, in extreme winter weather, in order to prevent valves and pipelines from cracking or jamming due to residual water freezing in low-temperature environments, valve protection devices are installed on the outside of the valves.

[0004] However, most existing valve protection devices use insulation cotton to wrap the valve or install antifreeze covers on the outside of the valve. The antifreeze covers are fixed with bolts. When maintenance personnel need to repair or replace the valve, they have to repeatedly unscrew the bolts, which takes a long time to remove the antifreeze covers and affects the maintenance efficiency. Therefore, a valve antifreeze protection device based on absorption heat pump secondary network heating is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a valve antifreeze protection device based on absorption heat pump secondary network heating. By unscrewing the locking pin bottom end of the locking block from the inside of the receiving groove, the locking pin passes through the receiving groove, the through groove and the through hole on the surface of the insert block and is in contact with the inner bottom surface of the locking groove. Then, the locking block on the outer arc surface of the locking pin is screwed into the inside of the locking groove and engaged with the locking groove to fix the two sets of antifreeze covers, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A valve antifreeze protection device based on absorption heat pump secondary network heating.

[0008] It includes a valve body and an antifreeze cover for protecting the valve body from freezing, wherein the antifreeze cover is respectively fitted on both sides of the valve body;

[0009] The first fixing block and the second fixing block are symmetrically installed on the top of the antifreeze cover on both sides of the valve body;

[0010] It also includes a locking mechanism for locking and fixing the first fixing block and the second fixing block.

[0011] Preferably, the locking mechanism includes,

[0012] A locking pin for inserting and locking the second fixing block and a slot for engaging the locking block provided on the outer arc surface of the bottom end of the locking pin;

[0013] The top of the first fixing block has a round hole for the locking pin to be inserted into the inside of the first fixing block. The side wall of the second fixing block is provided with an insert block. The side wall of the first fixing block has a slot corresponding to the insert block. The surface of the insert block has a through hole. The bottom end of the locking pin passes through the receiving groove, the through groove and the through hole and is attached to the inner bottom surface of the slot. The locking pin is rotated to make the slot block engage inside the slot.

[0014] Preferably, a storage groove is provided above the slot inside the first fixing block for storing the locking pin when not in use, and the storage groove and the slot are connected by a through groove.

[0015] Preferably, the cross-sections of the through groove and through hole correspond to the cross-section of the bottom end of the locking pin, and the cross-sections of the receiving groove and the card slot are both fan-shaped and located on the same vertical line.

[0016] Preferably, the top of the locking pin has a cross groove, which makes it easy for workers to rotate the locking pin using a Phillips screwdriver.

[0017] Preferably, the top of the locking pin is provided with an indicator pin, which is located on the same vertical line as the locking block, for workers to confirm the position of the internal locking block.

[0018] Preferably, one of the antifreeze covers has a post on its side wall, and the other antifreeze cover has a corresponding hole on its side wall for positioning the two sets of antifreeze covers during installation.

[0019] Preferably, the inner walls of the antifreeze cover that are in contact with the water pipes on both sides of the valve body are provided with sealing strips to ensure the sealing between the valve body and the antifreeze cover.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model uses a locking mechanism to fix the antifreeze covers on both sides of the valve body. During installation, workers only need to place the antifreeze covers on the outside of the valve body, insert the insert block on the side wall of the second fixing block into the through groove on the side wall of the first fixing block, and use a screwdriver to unscrew the locking pin from the receiving groove, so that the locking pin passes through the receiving groove, the through groove, and the through hole on the surface of the insert block and is in contact with the inner bottom surface of the slot. At this time, the worker uses a tool to rotate the locking pin, so that the locking pin on the outer arc surface of the locking pin is screwed into the slot and engages with the slot, thereby fixing the two sets of antifreeze covers. Conversely, the worker can operate in reverse to disassemble the antifreeze covers and inspect or replace the valve body inside, which is more time-saving and labor-saving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled valve structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of the antifreeze cover of this utility model;

[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the locking pin structure of this utility model.

[0027] In the diagram: 1. Valve body; 2. Antifreeze cover; 3. First fixing block; 4. Second fixing block; 5. Locking mechanism; 6. Insert post; 7. Insert hole; 8. Sealing strip; 9. Insert block; 10. Through hole; 11. Round hole; 12. Storage groove; 13. Through groove; 14. Slot; 15. Slot; 16. Locking pin; 17. Locking block; 18. Cross groove; 19. Indicator needle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 This utility model provides a technical solution:

[0030] A valve antifreeze protection device based on absorption heat pump secondary network heating.

[0031] It includes a valve body 1 and an antifreeze cover 2 for protecting the valve body 1 from freezing. The antifreeze cover 2 is respectively fitted on both sides of the valve body 1.

[0032] The first fixing block 3 and the second fixing block 4 are symmetrically installed on the top of the antifreeze cover 2 on both sides of the valve body 1, respectively;

[0033] It also includes a locking mechanism 5, which is used to lock and fix the first fixing block 3 and the second fixing block 4.

[0034] Locking mechanism 5 includes,

[0035] A locking pin 16 for inserting and locking the second fixing block 4 and a slot 15 for engaging the locking block 17 provided on the outer arc surface of the bottom end of the locking pin 16;

[0036] The top of the first fixing block 3 has a round hole 11 for the locking pin 16 to be inserted into the interior of the first fixing block 3. The side wall of the second fixing block 4 is provided with a plug 9. The side wall of the first fixing block 3 has a slot 14 corresponding to the plug 9. The surface of the plug 9 has a through hole 10. The bottom end of the locking pin 16 is inserted through the receiving groove 12, the through groove 13 and the through hole 10 and attached to the inner bottom surface of the slot 15. The locking pin 16 is rotated to make the slot 17 engage inside the slot 15.

[0037] One of the antifreeze covers 2 has a post 6 on its side wall, and the other antifreeze cover 2 has a hole 7 on its side wall corresponding to the post 6, which is used to position the two sets of antifreeze covers 2 during installation.

[0038] The interiors of the two sets of antifreeze covers 2 are insulated with materials such as rubber and plastic or rock wool to reduce heat loss from the internal valve body 1, thus providing antifreeze protection for the valve body 1. A locking pin 16 is inserted into a round hole 11 at the top of the first fixing block 3. A locking block 17 on the outer arc surface of the bottom end of the locking pin 16 engages with a slot 15 at the bottom of the first fixing block 3. A slot 14 is provided above the slot 15 for inserting a plug 9 from the side wall of the second fixing block 4. A through hole 10 corresponding to the cross-section of the bottom end of the locking pin 16 is formed on the surface of the plug 9. When installing the antifreeze cover 2, the plug 9 is inserted... After being inserted into the slot 14, the worker presses the locking pin 16 into the slot 15 inside the first fixing block 3. At this time, the locking pin 16 passes through the storage slot 12, the through slot 13 and the through hole 10 on the surface of the insert block 9 and contacts the inner bottom surface of the slot 15. When it can no longer be pressed, the worker rotates the locking pin 16 to screw the locking block 17 on the side wall of the locking pin 16 into the slot 15. After rotating it to 90 degrees, the slot 15 and the locking block 17 are engaged, so as to fix the second fixing block 4 into the slot 14 on the side wall of the first fixing block 3, and further realize the installation of the two sets of antifreeze covers 2 on the outside of the valve body 1.

[0039] When disassembling the antifreeze cover 2, the worker uses a tool to rotate the locking pin 16 in the opposite direction, unscrews the locking block 17 from the slot 15, and then pulls the locking pin 16 upwards until it can no longer be pulled out. By rotating the locking pin 16, the slot 15 on the outer arc surface of the locking pin 16 is screwed into the storage slot 12 to store the locking pin 16. At this time, the insert 9 is disengaged from the locking pin 16, and the two antifreeze covers 2 on both sides are pulled outwards respectively, thus disassembling the antifreeze cover 2 without the need for the worker to repeatedly tighten the bolts, which is more time-saving and labor-saving.

[0040] Furthermore, the side walls of the two sets of antifreeze covers 2 that are in contact with each other are respectively provided with insert posts 6 and insert holes 7 corresponding to the insert posts 6. When the workers install the antifreeze covers 2, they insert the insert posts 6 into the inside of the insert holes 7 to position the two sets of antifreeze covers 2 during installation. At the same time, after the antifreeze covers 2 are installed, they are supported by inserting the insert posts 6 into the inside of the insert holes 7.

[0041] A storage slot 12 is provided above the slot 14 inside the first fixing block 3 for storing the locking pin 16 when not in use. The storage slot 12 and the slot 14 are connected by a through slot 13.

[0042] A storage groove 12 is provided above the slot 14 and below the round hole 11 for storing the locking pin 16 when not in use. When the worker removes the antifreeze cover 2 on both sides of the valve body 1, during the disassembly process, the worker will unscrew the locking block 17 on the outer arc surface of the locking pin 16 into the groove 15 and pull it upward. At this time, the locking pin 16 will be pulled out to the position of the storage groove 12. The worker will then rotate the locking pin 16 and screw the groove 15 on the outer arc surface of the locking pin 16 into the storage groove 12, so that the storage groove 12 and the locking block 17 are engaged, thus meeting the requirement of storing and fixing the locking pin 16 and preventing the locking pin 16 from being lost after disassembly, which would affect the subsequent installation of the antifreeze cover 2.

[0043] The cross-sections of the through groove 13 and through hole 10 correspond to the bottom cross-section of the locking pin 16. The cross-sections of the receiving groove 12 and the slot 15 are both fan-shaped and located on the same vertical line. This ensures that when the locking block 17 on the outer arc surface of the locking pin 16 is screwed out from inside the receiving groove 12 and pressed down, the bottom end of the locking pin 16 passes through the through groove 13 and through hole 10 respectively, so as to insert and fix the plug 9. Then, by rotating the locking pin 16, the locking block 17 on the outer arc surface of the locking pin 16 is screwed into the inside of the slot 15, thereby locking and fixing the plug 9.

[0044] The top of the locking pin 16 has a cross groove 18, which makes it easy for workers to rotate the locking pin 16 using a Phillips screwdriver. The top of the locking pin 16 is provided with an indicator needle 19, which is located on the same vertical line as the locking block 17, and is used by workers to confirm the position of the internal locking block 17.

[0045] Furthermore, the worker uses a Phillips screwdriver to insert into the Phillips groove 18 at the top of the locking pin 16 and rotates the locking pin 16 so that the locking block 17 on the outer arc surface of the locking pin 16 can engage with the slot 15 and the storage slot 12 respectively, thereby fixing and removing the insert 9 and storing the locking pin 16.

[0046] The inner wall of the antifreeze cover 2, which is in contact with the water pipes on both sides of the valve body 1, is provided with sealing strips 8 to ensure the sealing between the valve body 1 and the antifreeze cover 2.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A valve antifreeze protection device based on absorption heat pump secondary network heating, characterized in that: It includes a valve body (1) and an antifreeze cover (2) for protecting the valve body (1) from freezing, wherein the antifreeze cover (2) is respectively fitted on both sides of the valve body (1); The first fixing block (3) and the second fixing block (4) are symmetrically installed on the top of the antifreeze cover (2) on both sides of the valve body (1); It also includes a locking mechanism (5) for locking and fixing the first fixing block (3) and the second fixing block (4).

2. The valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 1, characterized in that: The locking mechanism (5) includes, A locking pin (16) for inserting and locking the second fixing block (4) and a slot (15) for engaging the locking block (17) provided on the outer arc surface of the bottom end of the locking pin (16); The top of the first fixing block (3) is provided with a round hole (11) for the locking pin (16) to be inserted into the interior of the first fixing block (3). The side wall of the second fixing block (4) is provided with a plug (9). The side wall of the first fixing block (3) is provided with a slot (14) corresponding to the plug (9). The surface of the plug (9) is provided with a through hole (10). The bottom end of the locking pin (16) passes through the storage groove (12), the through groove (13) and the through hole (10) and is attached to the inner bottom surface of the slot (15). The locking pin (16) is rotated to make the slot (17) engage inside the slot (15).

3. The valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 2, characterized in that: A storage slot (12) is provided above the slot (14) inside the first fixing block (3) for storing the locking pin (16) when not in use. The storage slot (12) and the slot (14) are connected by a through slot (13).

4. The valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 3, characterized in that: The cross-sections of the through groove (13) and through hole (10) correspond to the bottom cross-section of the locking pin (16). The cross-sections of the receiving groove (12) and the card slot (15) are both fan-shaped and located on the same vertical line.

5. A valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 4, characterized in that: The top of the locking pin (16) is provided with a cross groove (18), which makes it easy for workers to rotate the locking pin (16) using a cross screwdriver.

6. A valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 5, characterized in that: The locking pin (16) is provided with an indicator pin (19) at its top end. The indicator pin (19) and the locking block (17) are located on the same vertical line, which is used by workers to confirm the position of the internal locking block (17).

7. A valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 1, characterized in that: One of the antifreeze covers (2) has a post (6) on its side wall, and the other antifreeze cover (2) has a hole (7) corresponding to the post (6) on its side wall, for positioning the two sets of antifreeze covers (2) during installation.

8. A valve antifreeze protection device based on absorption heat pump secondary network heating according to claim 7, characterized in that: The inner wall of the antifreeze cover (2) that is in contact with the water pipes on both sides of the valve body (1) is provided with sealing strips (8) to ensure the sealing between the valve body (1) and the antifreeze cover (2).

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