A through-wall valve with hot and cold water anti-freezing function

Abstract

The utility model relates to a wall -penetrating valve technical field especially having anti -freezing function's wall -penetrating valve with cold and hot water, the utility model provides a wall -penetrating valve with cold and hot water has anti -freezing function, including inlet pipe, first joint, fixed seat, connecting pipe, mixed water pipe and check valve, the number of inlet pipe is two, and the left end of inlet pipe is connected and has first joint, and the right end of first joint is equipped with fixed seat, and the side of the right end of two inlet pipes close to each other is connected and has connecting pipe, and the upper two connecting pipes are jointly connected and have mixed water pipe. By adjusting the hand wheel on two inlet pipes respectively, the inflow proportion of cold and hot water can be controlled, and after the user stops using water, the residual water in the valve body is emptied through the second elastic element, the guide rod and the piston, so that there is no water to freeze in the valve body when it is installed in the cold environment outside the wall, thereby effectively preventing the valve body or pipeline from being broken due to ice expansion.

Description

Technical Field

[0001] This utility model relates to the field of wall-penetrating valve technology, and in particular to a wall-penetrating valve with antifreeze function for both hot and cold water. Background Technology

[0002] A through-wall valve is a valve specifically designed for installation through walls. It is typically used to connect fluid piping systems inside and outside buildings. It can control the flow of media and achieve a sealed connection between pipes on both sides of the wall. It also has good thermal insulation, waterproofing, fireproofing and structural sealing performance.

[0003] Patent CN215445471U discloses a through-wall check valve that is easy to stretch. It includes an outer tube and an inner tube, which are sleeved together. The inner tube has a row of vertically distributed inner arc strips on its inner wall in the front, back, left, and right directions, and the outer tube has a row of vertically distributed outer arc strips on its outer wall in the same direction. When using this patent, rotating the inner and outer tubes separates the inner and outer arc strips, allowing the outer and inner tubes to be pulled up and down. However, in winter, the water in this existing patent freezes at low temperatures, and the ice blocks the valve cavity, causing the check valve function to fail.

[0004] Therefore, there is a need to provide a wall-penetrating valve with antifreeze function for both hot and cold water. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patents mentioned above, where water freezes at low temperatures during winter use, and ice blocks the valve cavity, causing the check valve function to fail, this utility model provides a through-wall valve with antifreeze function for both hot and cold water.

[0006] The technical solution is as follows: A wall-penetrating valve with hot and cold water and antifreeze function includes an inlet pipe, a first connector, a fixing seat, a connecting pipe, a mixing pipe, a one-way valve, a second connector, a hollow pipe, a sealing assembly, and an adjusting assembly. There are two inlet pipes. The left end of each inlet pipe is connected to the first connector, and the right end of the first connector is fitted with a fixing seat. The right ends of the two inlet pipes, close to each other, are connected to the connecting pipe. The two connecting pipes are connected to the mixing pipe, and one-way valves are installed at both ends of the mixing pipe. The top of the mixing pipe... The device includes a second connector, a hollow tube that slides through the inlet pipe, a sealing component for controlling water flow at the left end of the hollow tube, and a regulating component for adjusting water flow at the rear end of the hollow tube. It also includes a drain pipe, a fixing frame, a guide rod, a piston, and a second elastic element. The lower part of the connecting pipe is connected to and communicates with the drain pipe. A fixing frame is fixedly connected inside the connecting pipe. A guide rod slides on the fixing frame. A piston is connected to the rear end of the guide rod. The piston slides to control the opening and closing of the drain pipe. A second elastic element connects the guide rod and the fixing frame.

[0007] Optionally, the sealing assembly includes a first connector, a sealing plug, a fixing screw, a limiting sleeve, a rubber valve, a fixing plug, and a first elastic element. The first connector is slidably provided at the left end of the hollow tube. The sealing plug is connected to the left side of the first connector by a fixing screw. A stepped surface is provided at the left end of the inner side of the water inlet pipe. The sealing plug fits against the stepped surface at the left end of the inner side of the water inlet pipe. A limiting sleeve is fixedly connected to the end of the hollow tube near the first connector. A rubber valve is installed on the limiting sleeve. The outer edge of the rubber valve contacts the inner wall of the water inlet pipe. A fixing plug is fixedly connected inside the hollow tube. A first elastic element connects the fixing plug and the sealing plug.

[0008] Optionally, the adjustment assembly includes a threaded sleeve, a second connector, a sealing ring, and a handwheel. A threaded sleeve is threaded on the right end of the inlet pipe, and a second connector is bolted inside the threaded sleeve. A sealing ring is fitted on the left end of the second connector, and the sealing ring fits against the right end of the inner side of the inlet pipe. A handwheel is fixedly connected to one end of the second connector located outside the threaded sleeve.

[0009] Optionally, it also includes a fixing bolt and a nameplate, with the nameplate mounted on the handwheel via the fixing bolt, which passes through the handwheel and is threadedly connected to the second connector.

[0010] Optionally, it also includes a first rubber ring, with two first rubber rings fitted on the ends of the first and second connectors that are close to each other.

[0011] Optionally, it also includes a second rubber ring, which is fitted onto the threaded sleeve and contacts the inner wall of the inlet pipe.

[0012] Optionally, the lower part of the fixed seat is connected to and communicates with an exhaust pipe, a valve seat is threaded on the exhaust pipe, a valve core is fixedly connected to the valve seat, a rubber block is slidably provided on the lower part of the valve core, the rubber block abuts against the exhaust hole of the valve seat, a third elastic element is connected between the valve core and the rubber block, a third rubber ring is sleeved on the outside of the exhaust pipe, the third rubber ring fills the gap between the valve seat and the exhaust pipe, and a sealing cap is threaded on the lower part of the valve seat.

[0013] This utility model has the following advantages: By adjusting the handwheels on the two inlet pipes respectively, the inflow ratio of cold and hot water can be controlled. After the user stops using water, the residual water inside the valve body is drained through the second elastic element, guide rod and piston, so that there is no water inside the valve body when it is installed in a cold environment outside the wall, thus effectively preventing the valve body or pipeline from cracking due to ice expansion. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2This is a three-dimensional sectional view of the water inlet pipe, the fixing base, and the water inlet pipe of this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0017] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0018] Figure 5 This is a three-dimensional sectional view of the connecting pipe, mixing water pipe and drainage pipe of this utility model.

[0019] Figure 6 This is an exploded view of the first connector, sealing plug, and fixing screw of this utility model.

[0020] Figure 7 This is an exploded view of the threaded sleeve, the second connector, and the sealing ring of this utility model.

[0021] Figure 8 This is a three-dimensional sectional view of the fixing base, exhaust pipe and sealing cover of this utility model.

[0022] Figure 9 This is a three-dimensional sectional view of the fixing seat, valve seat, and valve core of this utility model.

[0023] Figure 10 This is an exploded view of the valve core, valve core and rubber block of this utility model.

[0024] The meanings of the reference numerals in the figure are as follows: 1: Inlet pipe; 2: First connector; 3: Fixing base; 4: Connecting pipe; 5: Mixing water pipe; 501: One-way valve; 6: Second connector; 7: Hollow pipe; 8: Sealing assembly; 801: First insertion connector; 802: Sealing plug; 803: Fixing screw; 804: Limiting sleeve; 805: Rubber valve; 806: Fixing plug; 807: First elastic element; 9: Adjusting assembly; 901: Threaded sleeve. 902: Second connector; 903: Sealing ring; 904: Handwheel; 10: Drain pipe; 11: Fixing bracket; 12: Guide rod; 13: Piston; 14: Second elastic element; 15: Fixing bolt; 16: Identification plate; 17: First rubber ring; 18: Second rubber ring; 19: Exhaust pipe; 20: Valve seat; 21: Valve core; 22: Rubber block; 2201: Third elastic element; 23: Third rubber ring; 24: Sealing cap. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1: A wall-penetrating valve with antifreeze function for both hot and cold water, see reference. Figures 1-7As shown, the system includes an inlet pipe 1, a first connector 2, a fixing base 3, a connecting pipe 4, a mixing water pipe 5, a one-way valve 501, a second connector 6, a hollow pipe 7, a sealing assembly 8, and an adjusting assembly 9. There are two inlet pipes 1. The left end of each inlet pipe 1 is connected to the first connector 2. The right end of the first connector 2 is fitted with a fixing base 3, which has mounting holes for securing it to the wall with bolts. The right ends of the two inlet pipes 1 are connected to the connecting pipe 4, and the two connecting pipes 4 are connected to the mixing water pipe 5. One-way valves 501 are installed at both ends of the lower part of the mixing water pipe 5. The top of the mixing water pipe 5 is connected to the second connector 6. The inlet pipe 1 is a sliding type. The system includes a hollow tube 7, with a sealing component 8 at the left end for controlling water inflow and a regulating component 9 at the rear end for adjusting water flow. It also includes a drain pipe 10, a fixing frame 11, a guide rod 12, a piston 13, and a second elastic element 14. A connecting pipe 4 is connected to and communicates with the drain pipe 10 at its lower part. The fixing frame 11 is fixedly connected to the inside of the connecting pipe 4 by welding. A circular hole is opened in the center of the fixing frame 11. A guide rod 12 is slidably mounted on the fixing frame 11. A piston 13 is connected to the rear end of the guide rod 12. The piston 13 slides to control the opening and closing of the drain pipe 10. A second elastic element 14 connects the guide rod 12 and the fixing frame 11, and the second elastic element 14 is sleeved on the guide rod 12.

[0027] See Figure 2 , Figure 3 and Figure 6 As shown, the sealing assembly 8 includes a first connector 801, a sealing plug 802, a fixing screw 803, a limiting sleeve 804, a rubber valve 805, a fixing plug 806, and a first elastic element 807. The first connector 801 is slidably provided on the left end of the hollow tube 7. The sealing plug 802 is connected to the left side of the first connector 801 by the fixing screw 803. The sealing plug 802 is made of rubber and has good sealing performance. A stepped surface is provided on the left side of the inner side of the water inlet pipe 1. The sealing plug 802 fits against the stepped surface on the left side of the inner side of the water inlet pipe 1. The limiting sleeve 804 is fixedly connected to the end of the hollow tube 7 near the first connector 2. The limiting sleeve 804 is equipped with a rubber valve 805. The rubber valve 805 is funnel-shaped, and the outer edge of the rubber valve 805 contacts the inner wall of the water inlet pipe 1. The fixing plug 806 is fixedly connected inside the hollow tube 7. The first elastic element 807 connects the fixing plug 806 and the sealing plug 802.

[0028] When water enters, it enters the inlet pipe 1 through the first connector 2. When the water pressure is high, the water flow pushes the sealing plug 802 to slide to the right. The sealing plug 802 squeezes the first elastic element 807 and deforms. At this time, the gap between the sealing plug 802 and the stepped surface on the left side of the inner side of the inlet pipe 1 becomes larger. The water flows in through the gap between the sealing plug 802 and the inlet pipe 1, and then flows into the connecting pipe 4 through the gap between the inlet pipe 1 and the rubber valve 805. When the water pressure decreases, the first elastic element 807 returns to its original shape and drives the sealing plug 802 to slide back to its original position. The sealing plug 802 abuts against the stepped surface on the left side of the inner side of the inlet pipe 1, thereby closing the inlet pipe 1 and preventing water from entering when the pressure is low. The rubber valve 805 plays a role in preventing backflow.

[0029] See Figure 2 , Figure 4 and Figure 7 As shown, the adjusting component 9 includes a threaded sleeve 901, a second connector 902, a sealing ring 903, and a handwheel 904. The right end of the water inlet pipe 1 is threaded with a threaded sleeve 901. A second rubber ring 18 is fitted on the threaded sleeve 901 and contacts the inner wall of the water inlet pipe 1. The second rubber ring 18 enhances the static sealing effect between the threaded sleeve 901 and the inner wall of the water inlet pipe 1. The second connector 902 is bolted inside the threaded sleeve 901. A sealing ring 903 is fitted on the left end of the second connector 902 and fits against the right end of the inner side of the water inlet pipe 1. The handwheel 904 is fixedly connected to one end of the second connector 902 located outside the threaded sleeve 901. Two first rubber rings 17 are fitted on the ends of the first connector 801 and the second connector 902 that are close to each other. The first rubber rings 17 enhance the sealing performance of the first connector 801 and the second connector 902 inside the hollow tube 7.

[0030] In use, the two inlet pipes 1 are connected to the cold water supply pipe and the hot water supply pipe respectively through the two first connectors 2. Water flows into the inlet pipe 1 through the first connector 2 at the left end. When adjusting the water flow, rotate the handwheel 904. The handwheel 904 drives the second connector 902 and the sealing ring 903 to move left and right inside the inlet pipe 1. Turning the handwheel 904 to the right will push the second connector 902 to the left. The second connector 902 drives the first connector 801 and the sealing plug 8 through the hollow tube 7. 02. Moving the handwheel 904 to the left compresses the gap between the sealing plug 802 and the inlet pipe 1, thereby reducing the cross-sectional area of ​​the inlet pipe 1 and closing or reducing the water flow. Conversely, turning the handwheel 904 to the left increases the water flow. By adjusting the handwheels 904 on the two inlet pipes 1 respectively, the ratio of cold and hot water flow can be controlled. The adjusted cold and hot water flow out through the connecting pipes 4 at the right end of the two inlet pipes 1, and the two connecting pipes 4 merge into the mixing pipe 5. The cold and hot water flow in the mixing pipe 5. The water is mixed and output to the user through the second connector 6. The one-way valves 501 at both ends of the mixing pipe 5 ensure that the water can only flow from the inlet pipe 1 to the second connector 6, preventing the mixed water from flowing back into the separate inlet pipe 1. During normal water supply, the connecting pipe 4 is filled with pressurized water. The water pressure acts on the piston 13 and pushes the piston 13 to slide inward. The piston 13 deforms by squeezing the second elastic element 14 through the guide rod 12. The piston 13 slides and seals the drain pipe 10. At this time, the drain pipe 10 is in the closed state and the water will not flow out. When the user stops using water, the water pressure in the inlet pipe 1 and the connecting pipe 4 is released, and the second elastic element 14 returns to its original state, pushing the guide rod 12 and the piston 13 to slide back to their original position, thereby opening the drain pipe 10. The water remaining inside the valve body is automatically and completely discharged from the drain pipe 10 under the action of gravity until it is empty. This ensures that there is no water inside the valve body when it is installed in a cold environment outside the wall, thus effectively preventing the valve body or pipeline from breaking due to the expansion of ice.

[0031] Example 2: Based on Example 1, refer to Figure 2 and Figure 7 As shown, it also includes a fixing bolt 15 and an identification plate 16. The identification plate 16 is installed on the handwheel 904 by the fixing bolt 15. The identification plate 16 is provided with "open" and "close" indicators and arrows to facilitate accurate adjustment by the user when using the valve body. The fixing bolt 15 passes through the handwheel 904 and is threadedly connected to the second connector 902.

[0032] See Figure 1 , Figure 8 and Figure 10As shown, the lower part of the fixed seat 3 is connected to and communicates with an exhaust pipe 19. A valve seat 20 is threaded on the exhaust pipe 19. A valve core 21 is fixedly connected to the valve seat 20. A round rod is provided at the lower part of the valve core 21. A rubber block 22 is slidably provided on the round rod at the lower part of the valve core 21. The rubber block 22 abuts against the exhaust hole on the valve seat 20. A third elastic element 2201 is connected between the valve core 21 and the rubber block 22. The third elastic element 2201 is sleeved on the round rod at the lower part of the valve core 21. A third rubber ring 23 is sleeved on the outside of the exhaust pipe 19. The third rubber ring 23 fills the gap between the valve seat 20 and the exhaust pipe 19. A sealing cap 24 is threaded on the lower part of the valve seat 20.

[0033] When the wall-penetrating valve needs to release air, rotate the sealing cover 24 to open the valve seat 20, then press down on the rubber block 22. The rubber block 22 compresses the third elastic element 2201 and deforms. The rubber block 22 no longer presses against the vent hole on the valve seat 20, and the gas in the wall-penetrating valve is discharged from the gap between the rubber block 22 and the valve seat 20. After the venting is completed, release the rubber block 22. The third elastic element 2201 returns to its original shape, causing the rubber block 22 to slide upward and press against the vent hole on the valve seat 20 again. Then rotate the sealing cover 24 in the opposite direction to close the valve seat 20.

[0034] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A wall-penetrating valve with antifreeze function for hot and cold water, comprising an inlet pipe (1), a first connector (2), a fixing seat (3), a connecting pipe (4), a mixing pipe (5), a one-way valve (501), a second connector (6), a hollow pipe (7), a sealing assembly (8), and an adjusting assembly (9). The inlet pipe (1) consists of two pipes. The left end of the inlet pipe (1) is connected to and communicates with the first connector (2). The right end of the first connector (2) is fitted with a fixing seat (3). The right ends of the two inlet pipes (1) are close to each other. Both sides of the pipe are connected to and connected by a connecting pipe (4), and the two connecting pipes (4) are connected to and connected by a mixing water pipe (5). One-way valves (501) are installed at both ends of the mixing water pipe (5). A second connector (6) is connected to and connected to the top of the mixing water pipe (5). A hollow pipe (7) is slidably provided on the inlet pipe (1). A sealing component (8) for controlling the water inflow is provided at the left end of the hollow pipe (7). An adjusting component (9) for adjusting the water flow is provided at the rear end of the hollow pipe (7). The feature is that... It also includes a drain pipe (10), a fixing frame (11), a guide rod (12), a piston (13), and a second elastic element (14). The lower part of the connecting pipe (4) is connected to and communicates with the drain pipe (10). The fixing frame (11) is fixedly connected inside the connecting pipe (4). The guide rod (12) is slidably arranged on the fixing frame (11). The piston (13) is connected to the rear end of the guide rod (12). The piston (13) slides to control the opening and closing of the drain pipe (10). The second elastic element (14) is connected between the guide rod (12) and the fixing frame (11).

2. A wall-penetrating valve with antifreeze function for both hot and cold water as described in claim 1, characterized in that, The sealing assembly (8) includes a first connector (801), a sealing plug (802), a fixing screw (803), a limiting sleeve (804), a rubber valve (805), a fixing plug (806), and a first elastic element (807). The first connector (801) is slidably provided on the left end of the hollow tube (7). The sealing plug (802) is connected to the left side of the first connector (801) by the fixing screw (803). A stepped surface is provided on the left end of the inner side of the water inlet pipe (1). The plug (802) is in contact with the stepped surface of the left end of the inner side of the water inlet pipe (1). The end of the hollow tube (7) near the first connector (2) is fixedly connected to a limiting sleeve (804). A rubber valve (805) is installed on the limiting sleeve (804). The outer edge of the rubber valve (805) is in contact with the inner wall of the water inlet pipe (1). A fixing plug (806) is fixedly connected inside the hollow tube (7). A first elastic element (807) is connected between the fixing plug (806) and the sealing plug (802).

3. A wall-penetrating valve with antifreeze function for both hot and cold water as described in claim 2, characterized in that, The adjustment assembly (9) includes a threaded sleeve (901), a second connector (902), a sealing ring (903), and a handwheel (904). The right end of the water inlet pipe (1) is threaded with a threaded sleeve (901). The second connector (902) is bolted inside the threaded sleeve (901). The left end of the second connector (902) is fitted with a sealing ring (903). The sealing ring (903) fits against the right end of the inner side of the water inlet pipe (1). The end of the second connector (902) located outside the threaded sleeve (901) is fixedly connected to a handwheel (904).

4. A wall-penetrating valve with antifreeze function for both hot and cold water as described in claim 3, characterized in that, It also includes a fixing bolt (15) and a sign (16). The sign (16) is installed on the handwheel (904) by the fixing bolt (15). The fixing bolt (15) passes through the handwheel (904) and is threadedly connected to the second connector (902).

5. A wall-penetrating valve with antifreeze function for both hot and cold water as described in claim 4, characterized in that, It also includes a first rubber ring (17), and two first rubber rings (17) are fitted on the ends of the first connector (801) and the second connector (902) that are close to each other.

6. A wall-penetrating valve with antifreeze function for both hot and cold water as described in claim 5, characterized in that, It also includes a second rubber ring (18), which is fitted on the threaded sleeve (901) and contacts the inner wall of the water inlet pipe (1).

7. A wall-penetrating valve with antifreeze function for both hot and cold water as described in claim 6, characterized in that, The lower part of the fixed seat (3) is connected to and communicates with an exhaust pipe (19). A valve seat (20) is threaded on the exhaust pipe (19). A valve core (21) is fixedly connected to the valve seat (20). A rubber block (22) is slidably provided on the lower part of the valve core (21). The rubber block (22) abuts against the exhaust hole of the valve seat (20). A third elastic element (2201) is connected between the valve core (21) and the rubber block (22). A third rubber ring (23) is sleeved on the outside of the exhaust pipe (19). The third rubber ring (23) fills the gap between the valve seat (20) and the exhaust pipe (19). A sealing cap (24) is threaded on the lower part of the valve seat (20).

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