Anti-reflux component for annular heating system

Abstract

The utility model relates to an anti-reflux component for an annular heating system, which comprises a shell and an anti-reflux mechanism, a water outlet pipe is arranged on the left side of the shell, a water inlet pipe is arranged on the right side of the shell, and a movable cover is arranged at the top of the shell. According to the anti-backflow component for the annular heating system, by arranging the anti-backflow mechanism, after water enters the shell through the water inlet pipe, the pressure intensity of the right side of the movable plate is increased, and the water can flow out through the water outlet pipe after pushing the movable plate to rotate through the through groove, and meanwhile when the water inlet pipe stops supplying water and the water outlet pipe stops supplying water, a torsional spring drives the movable plate to turn over through a rotating block; the first sealing ring abuts against the fixing plate, water in the water outlet pipe is prevented from flowing back into the water outlet pipe, the sealing performance of the backflow component is effectively improved by arranging the second sealing ring and the sealing gasket, the movable cover is conveniently taken down by arranging the movable cover and the bolt, and the first sealing ring which is aged due to long-time use can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of annular heating systems, in particular to a backflow prevention component for annular heating systems. Background Art

[0002] The ring heating system is also called skirting heating, skirting board heating radiator, etc. Skirting heating is a new type of heating equipment. Its appearance and installation position are similar to the skirting in building decoration, so it is called skirting heater. This heater is usually long and installed at the bottom of the wall. It combines the characteristics of skirting and floor heating. Baseboard ring heating is achieved by installing heating pipes or electric heating films inside the skirting, and using the position of the skirting for heating. This heating method can effectively utilize space without occupying indoor space. It can effectively heat indoor air and provide a comfortable indoor environment.

[0003] However, when the existing skirting heater provides hot water to the heating pipe through a water pipe, when the water supply of the water inlet pipe is insufficient or the water supply is cut off, the water in the pipe is easy to cause backflow through the pipe, which is not conducive to the use of the ring heating system. Therefore, a ring heating system is proposed to use an anti-backflow component to solve the above-mentioned problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-backflow component for a ring-shaped heating system, which has the advantages of anti-backflow, etc., and solves the problem that when the existing skirting heater provides hot water to the heating pipe through a water pipe, when the water inlet pipe is insufficient or the water supply is cut off, the water in the pipe is prone to backflow through the pipe, which is not conducive to the use of the ring-shaped heating system.

[0005] To achieve the above object, the utility model provides the following technical solution: a backflow prevention component for an annular heating system, comprising a shell and a backflow prevention mechanism, a water outlet pipe is arranged on the left side of the shell, a water inlet pipe is arranged on the right side of the shell, and a movable cover is arranged on the top of the shell;

[0006] The anti-backflow mechanism includes a fixed plate fixedly mounted on the inner wall of the shell, a through groove is opened inside the fixed plate, a limit rod is fixedly mounted on the inner wall of the shell, two rotating blocks are slidably connected to the outer side of the limit rod, a torsion spring is fixedly mounted on the opposite side of the two rotating blocks, a movable plate is fixedly mounted on the outer side of the rotating block, and a first sealing ring is fixedly mounted on the right side of the movable plate.

[0007] Furthermore, the shape of the rotating block is circular, and one end of the torsion spring away from the rotating block is fixedly connected to the housing.

[0008] Furthermore, the torsion spring is sleeved with the limiting rod, the movable plate is located on the left side of the fixed plate, the right side of the first sealing ring abuts against the fixed plate, and the fixed plate and the movable plate are both rectangular in shape.

[0009] Furthermore, a second sealing ring is fixedly mounted on the bottom of the movable cover, and bolts are arranged on both left and right sides of the top of the movable cover.

[0010] Furthermore, two limiting grooves are provided at the bottom of the movable cover, and a sealing gasket abutting against the movable cover is fixedly mounted on the top of the fixed plate.

[0011] Furthermore, the bottom of the movable cover penetrates and extends to the inside of the shell, and the shape of the limiting groove is arc-shaped and matches the size of the rotating block.

[0012] Furthermore, one end of the rotating block passes through and extends to the interior of the limiting groove, and the rotating block is slidably connected to the movable cover through the limiting groove.

[0013] Furthermore, the bottom of the second sealing ring abuts against the top of the housing, and the movable cover is fixedly connected to the housing by bolts.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The annular heating system uses an anti-backflow component. By setting an anti-backflow mechanism, when water enters the interior of the shell through the water inlet pipe, the pressure on the right side of the movable plate increases. After the water pushes the movable plate to rotate through the through groove, it can flow out through the water outlet pipe. At the same time, when the water inlet pipe stops supplying water, the water outlet pipe is turned by the torsion spring through the rotating block, so that the first sealing ring abuts against the fixed plate to prevent the water in the water outlet pipe from flowing back into the water outlet pipe. By setting the second sealing ring and the sealing gasket, the sealing performance of the backflow component is effectively improved. By setting the movable cover and bolts, the movable cover can be easily removed, and the first sealing ring that has aged due to long-term use can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a side sectional schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the movable plate of the utility model.

[0019] In the figure: 1 shell, 2 water outlet pipe, 3 water inlet pipe, 4 fixed plate, 5 limit rod, 6 rotating block, 7 torsion spring, 8 movable plate, 9 first sealing ring, 10 movable cover, 11 second sealing ring, 12 limit groove, 13 sealing gasket, 14 bolt, 15 through groove. DETAILED DESCRIPTION

[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 In this embodiment, a backflow prevention component for an annular heating system includes a shell 1 and an backflow prevention mechanism. A water outlet pipe 2 is arranged on the left side of the shell 1, and a water inlet pipe 3 is arranged on the right side of the shell 1. The water inlet pipe 3 is connected to the heating water pipe in the annular heating system. A movable cover 10 is arranged on the top of the shell 1.

[0022] The anti-backflow mechanism includes a fixed plate 4 fixedly mounted on the inner wall of the shell 1, a through groove 15 is opened inside the fixed plate 4, a limiting rod 5 is fixedly mounted on the inner wall of the shell 1, two rotating blocks 6 are slidably connected to the outer side of the limiting rod 5, a torsion spring 7 is fixedly mounted on the opposite side of the two rotating blocks 6, a movable plate 8 is fixedly mounted on the outer side of the rotating block 6, a first sealing ring 9 is fixedly mounted on the right side of the movable plate 8, so as to improve the sealing performance, the rotating block 6 is circular in shape, and one end of the torsion spring 7 away from the rotating block 6 is fixedly connected to the shell 1, when the rotating block 6 rotates, the torsion spring 7 facilitates the resetting of the rotating block 6, the torsion spring 7 is sleeved with the limiting rod 5, the movable plate 8 is located on the left side of the fixed plate 4, the right side of the first sealing ring 9 abuts against the fixed plate 4, the fixed plate 4 and the movable plate 8 are both rectangular in shape, a second sealing ring 11 is fixedly mounted on the bottom of the movable cover 10, and bolts 14 are arranged on the left and right sides of the top of the movable cover 10 Two limiting grooves 12 are provided at the bottom of the movable cover 10, and a sealing gasket 13 abutting against the movable cover 10 is fixedly installed on the top of the fixed plate 4. The bottom of the movable cover 10 passes through and extends to the inside of the shell 1. The limiting groove 12 is arc-shaped and matches the size of the rotating block 6. One end of the rotating block 6 passes through and extends to the inside of the limiting groove 12. The rotating block 6 is slidably connected with the movable cover 10 through the limiting groove 12, so that the rotating block 6 can rotate around the limiting rod 5 while the limiting groove 12 and the rotating block 6 are limited to prevent the rotating block 6 from swinging and improve the stability of the rotating block 6. The bottom of the second sealing ring 11 abuts against the top of the shell 1, and cooperates with the sealing gasket 13 to improve the sealing of the anti-backflow component to prevent water from flowing out of the gap between the movable cover 10 and the shell 1. The movable cover 10 is fixedly connected to the shell 1 by bolts 14, and the movable cover 10 can be removed after the bolts 14 are turned.

[0023] It should be noted that, by providing an anti-backflow mechanism, when water enters the interior of the shell 1 through the water inlet pipe 3, the pressure on the right side of the movable plate 8 increases, and after the water pushes the movable plate 8 to rotate through the through groove 15, it can flow out through the water outlet pipe 2. At the same time, when the water inlet pipe 3 stops supplying water, the water outlet pipe 2, the torsion spring 7 drives the movable plate 8 to flip through the rotating block 6, so that the first sealing ring 9 abuts against the fixed plate 4 to prevent the water in the water outlet pipe 2 from flowing back into the water inlet pipe 3. By providing the second sealing ring 11 and the sealing gasket 13, the sealing performance of the backflow component is effectively improved. By providing the movable cover 10 and the bolts 14, the movable cover 10 can be easily removed, and the first sealing ring 9 that has aged due to long-term use can be replaced.

[0024] The working principle of the above embodiment is as follows: when in use, hot water enters the shell 1 through the water inlet pipe 3, so that the pressure on the side of the shell 1 close to the water inlet pipe 3 increases, and through the through groove 15, the movable plate 8 is turned over, and the hot water flows out through the water outlet pipe 2. When the water inlet pipe 3 stops supplying water, the pressure on the side of the shell 1 close to the water inlet pipe 3 decreases, and the movable plate 8 is driven to turn over through the torsion spring 7 and the rotating block 6. When the side of the first sealing ring 9 away from the movable plate 8 abuts against the fixed plate 4, the water in the water outlet pipe 2 can be prevented from flowing back to the water inlet pipe 3. When it is necessary to remove the movable cover 10, the bolt 14 is turned and the movable cover 10 is pulled to remove the movable cover 10.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A backflow prevention component for an annular heating system, comprising a housing (1) and a backflow prevention mechanism, characterized in that: A water outlet pipe (2) is provided on the left side of the shell (1), a water inlet pipe (3) is provided on the right side of the shell (1), and a movable cover (10) is provided on the top of the shell (1); The anti-backflow mechanism comprises a fixed plate (4) fixedly mounted on the inner wall of the shell (1), a through groove (15) being provided inside the fixed plate (4), a limit rod (5) being fixedly mounted on the inner wall of the shell (1), two rotating blocks (6) being slidably connected to the outer side of the limit rod (5), a torsion spring (7) being fixedly mounted on the opposite sides of the two rotating blocks (6), a movable plate (8) being fixedly mounted on the outer side of the rotating block (6), and a first sealing ring (9) being fixedly mounted on the right side of the movable plate (8).

2. The backflow prevention component for an annular heating system according to claim 1, characterized in that: The rotating block (6) is circular in shape, and one end of the torsion spring (7) away from the rotating block (6) is fixedly connected to the housing (1).

3. The backflow prevention component for an annular heating system according to claim 1, characterized in that: The torsion spring (7) is sleeved with the limiting rod (5), the movable plate (8) is located on the left side of the fixed plate (4), the right side of the first sealing ring (9) is in contact with the fixed plate (4), and the fixed plate (4) and the movable plate (8) are both rectangular in shape.

4. The backflow prevention component for an annular heating system according to claim 1, characterized in that: A second sealing ring (11) is fixedly mounted on the bottom of the movable cover (10), and bolts (14) are arranged on both left and right sides of the top of the movable cover (10).

5. The backflow prevention component for an annular heating system according to claim 4, characterized in that: The bottom of the movable cover (10) is provided with two limiting grooves (12), and the top of the fixed plate (4) is fixedly mounted with a sealing gasket (13) abutting against the movable cover (10).

6. The backflow prevention component for an annular heating system according to claim 5, characterized in that: The bottom of the movable cover (10) penetrates through and extends into the interior of the housing (1); the limiting groove (12) is arc-shaped and matches the size of the rotating block (6).

7. The backflow prevention component for an annular heating system according to claim 5, characterized in that: One end of the rotating block (6) passes through and extends into the interior of the limiting groove (12), and the rotating block (6) is slidably connected to the movable cover (10) via the limiting groove (12).

8. The backflow prevention component for an annular heating system according to claim 5, characterized in that: The bottom of the second sealing ring (11) abuts against the top of the housing (1), and the movable cover (10) is fixedly connected to the housing (1) via bolts (14).

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