A new type of sealing rubber ring for heat exchanger pipe

Abstract

The utility model discloses a novel sealing rubber ring for heat exchanger pipeline belongs to heat exchanger technical field, including clamping flange no.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, specifically relating to a novel sealing ring for heat exchanger pipes. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid. Heat exchanger pipe seals are primarily used to prevent fluid leakage, achieving a tight seal through the elastic deformation or structural characteristics of the sealing element.

[0003] Chinese Patent Application No. 2018209115108 discloses an expansion-type sealing ring for pipe connections, including an outer sealing ring and an inner sealing ring, as well as an air bladder, an air inlet pipe, and a clamping flange. The inner sealing ring is disposed at the connection of two ordinary pipes. An air bladder is disposed on the outer layer of the inner sealing ring, and an outer sealing ring is disposed on the outer layer of the air bladder. An air inlet pipe is disposed on the air bladder, passing through and fixed to the outer sealing ring. A sealing plug is disposed at the open end of the air inlet pipe. Clamping flanges are disposed at both ends of the outer sealing ring, and each clamping flange is fixed by clamping bolts. The outer sealing ring is provided with a groove that changes the inner diameter of the outer sealing ring.

[0004] The aforementioned patent uses bolts to fix two clamping flanges to secure the pipe connection. However, using bolts is not convenient for quickly fixing the two clamping flanges, resulting in poor convenience. In addition, the original device's check valve does not have a dust-proof function, and impurities can easily be introduced into the airbag when it is inflated through the check valve. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a novel sealing ring for heat exchanger pipes, which is characterized by its ease of quick and convenient installation of clamping flange one and clamping flange two.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel sealing ring for heat exchanger pipes, comprising a clamping flange one, a clamping flange two rotatably connected to one end of the clamping flange one, an outer sealing ring fixed inside both the clamping flange one and the clamping flange two, an inner sealing ring provided on one side of the outer sealing ring, an air bladder provided between the inner sealing ring and the outer sealing ring, a check valve installed at one end of the air bladder, a dust-blocking component provided inside the check valve, and a fixing component provided between the clamping flange one and the clamping flange two; The fixing assembly includes a folding plate. One end of the clamping flange is fixed with the folding plate. A fixing seat is fixed at one end of the clamping flange corresponding to the folding plate. The upper end of the fixing seat has a slot corresponding to the folding plate. One end of the fixing seat is provided with a pull plate. Slide rods are fixed on both sides of one end of the pull plate. A limit plate is fixed on one side between the two slide rods. A cavity corresponding to the limit plate is opened in the fixing seat. A spring is sleeved on the outside of the slide rod between the limit plate and the fixing seat. A locking hole corresponding to the slide rod is opened in the folding plate.

[0007] Preferably, the fixing assembly further includes a vertical plate, a rotating shaft, and a rotating plate, wherein a vertical plate is fixed on one side of the upper end of the fixing base at a position corresponding to the pull plate, a rotating shaft is rotatably connected to one end of the vertical plate, and a rotating plate is fixed to the other end of the rotating shaft.

[0008] Preferably, the upper end of the pull plate protrudes from the upper end of the fixed seat, the fixed seat has a sliding hole corresponding to the slide rod, and the side of the slide rod near the fixed seat is set with an arc-shaped structure.

[0009] Preferably, the rotating shaft and the vertical plate are connected by a damped rotation, and when the pull plate is not pulled, the side of the pull plate is flush with the side of one end of the rotating plate.

[0010] Preferably, the dustproof assembly includes a dustproof plate, and the check valve is provided with a dustproof plate on the side away from the airbag. The check valve has a groove corresponding to the dustproof plate. The dustproof plate and the check valve are connected by fixing bolts. The groove has fixing holes corresponding to the fixing bolts. Lifting rods are fixed on both sides of the upper end of the dustproof plate.

[0011] Preferably, after the dustproof plate is installed into the groove, the side of the dustproof plate is in close contact with the inner wall of the groove, and through holes corresponding to the fixing bolts are opened on both sides of the dustproof plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting a fixing component, places the pipes to be connected into clamping flange one. Pulling the pull plate causes the slide rod and limiting plate to slide in the fixing seat, the spring is compressed, and the clamping flange two is rotated to close. The folding plate at one end of clamping flange two enters the slot at the upper end of the fixing seat. Releasing the pull plate causes the spring to extend and push one end of the slide rod into the locking hole of the folding plate, thereby achieving the effect of limiting the folding plate and clamping flange two, thus locking clamping flange two and clamping flange one. The fixing component facilitates quick locking between clamping flange two and clamping flange one, improving the convenience of the device.

[0013] 2. This utility model uses a dustproof component to insert the dustproof plate into the groove of the check valve. Then, the fixing bolts are passed through the dustproof plate and screwed into the fixing holes to fix the dustproof plate. When disassembling the dustproof plate, it can be removed from the groove by lifting the rod. The dustproof plate can filter the gas that is filled into the airbag through the check valve, preventing impurities from being filled into the airbag when it is inflated. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of clamping flange one and clamping flange two of this utility model when they are open; Figure 3 This is a sectional perspective view of the fixing base of this utility model; Figure 4 This is a cross-sectional perspective view of the check valve of this utility model; Figure 5 This is a perspective view of the dustproof panel of this utility model during installation; In the diagram: 1. Clamping flange one; 2. Fixing assembly; 21. Fixing base; 22. Folding plate; 23. Slot; 24. Locking hole; 25. Pull plate; 26. Slide rod; 27. Limiting plate; 28. Cavity; 29. ​​Spring; 210. Vertical plate; 211. Rotating shaft; 212. Rotating plate; 3. Outer sealing ring; 4. Airbag; 5. Inner sealing ring; 6. Check valve; 7. Clamping flange two; 8. Dustproof assembly; 81. Dustproof plate; 82. Groove; 83. Fixing bolt; 84. Lifting rod; 85. Fixing hole. Detailed Implementation

[0015] 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.

[0016] Example 1 Please see Figure 1-5 The present invention provides the following technical solution: a novel sealing ring for heat exchanger pipes, comprising a clamping flange 1, a clamping flange 2 7 rotatably connected to one end of the clamping flange 1, an outer sealing ring 3 fixed inside both the clamping flange 1 and the clamping flange 2 7, an inner sealing ring 5 provided on one side of the outer sealing ring 3, an air bag 4 provided between the inner sealing ring 5 and the outer sealing ring 3, a check valve 6 installed at one end of the air bag 4, a dust-blocking component 8 provided inside the check valve 6, and a fixing component 2 provided between the clamping flange 1 and the clamping flange 2 7; The fixing assembly 2 includes a folding plate 22. One end of the clamping flange 2 is fixed with the folding plate 22. One end of the clamping flange 1 is fixed with a fixing seat 21 at a position corresponding to the folding plate 22. The upper end of the fixing seat 21 has a slot 23 corresponding to the folding plate 22. One end of the fixing seat 21 is provided with a pull plate 25. Slide rods 26 are fixed on both sides of one end of the pull plate 25. A limit plate 27 is fixed on one side between the two slide rods 26. A cavity 28 corresponding to the limit plate 27 is opened in the fixing seat 21. A spring 29 is sleeved on the outside of the slide rods 26 between the limit plate 27 and the fixing seat 21. A locking hole 24 corresponding to the slide rods 26 is opened in the folding plate 22.

[0017] Specifically, the fixing component 2 also includes a vertical plate 210, a rotating shaft 211 and a rotating plate 212. The vertical plate 210 is fixed on one side of the upper end of the fixing base 21 at a position corresponding to the pull plate 25. One end of the vertical plate 210 is rotatably connected to the rotating shaft 211, and the other end of the rotating shaft 211 is fixed to the rotating plate 212.

[0018] By adopting the above technical solution, it is not necessary to turn the rotating plate 212 when pulling the pull plate 25. The rotating plate 212 rotates on the vertical plate 210 through the rotating shaft 211. After the rotating plate 212 rotates to one end of the pull plate 25, it can limit the pull plate 25 and prevent the pull plate 25 from being pulled accidentally.

[0019] Specifically, the upper end of the pull plate 25 protrudes from the upper end of the fixing seat 21, and the fixing seat 21 has a sliding hole corresponding to the slide rod 26. The side of the slide rod 26 near the fixing seat 21 is set with an arc-shaped structure.

[0020] By adopting the above technical solution, the upper end of the pull plate 25 protrudes from the upper end of the fixed seat 21, which facilitates the pulling of the pull plate 25. The slide rod 26 can slide in the fixed seat 21. The side of the slide rod 26 near the fixed seat 21 is set with an arc structure to facilitate its entry into the card hole 24 of the folding plate 22.

[0021] Specifically, the rotating shaft 211 and the vertical plate 210 are connected by damping rotation. When the pull plate 25 is not pulled, the side of the pull plate 25 is flush with the side of one end of the rotating plate 212.

[0022] By adopting the above technical solution, the rotating shaft 211 is less likely to rotate on the vertical plate 210. When the pull plate 25 is not pulled, the side of the pull plate 25 is flush with the side of one end of the rotating plate 212, making the rotating plate 212 and the pull plate 25 fit together better, and the limiting effect of the pull plate 25 is better.

[0023] In this embodiment, when using the sealing ring for the heat exchanger pipes, the device is installed in a suitable position, and the pipes to be connected are placed into the clamping flange 1. Pulling the pull plate 25 causes the slide rod 26 and the limiting plate 27 to slide in the fixed seat 21, compressing the spring 29. This causes the clamping flange 27 to rotate and close, and the folding plate 22 at one end of the clamping flange 27 enters the slot 23 at the upper end of the fixed seat 21. Releasing the pull plate 25 causes the spring 29 to extend and push one end of the slide rod 26 into the locking hole 24 of the folding plate 22, achieving the effect of limiting the folding plate 22 and the clamping flange 27, thereby ensuring the proper functioning of the heat exchanger pipes. The clamping flange 27 and clamping flange 1 are locked together. Then, air can be injected into the airbag 4 through the check valve 6. The airbag 4 squeezes the inner sealing ring 5 against the pipeline, thereby making the inner sealing ring 5 and the pipeline more closely sealed. The fixing component 2 is set to facilitate quick locking between clamping flange 27 and clamping flange 1, improving the convenience of the device. It is not necessary to turn the rotating plate 212 when pulling the pull plate 25. The rotating plate 212 rotates on the vertical plate 210 through the rotating shaft 211. After the rotating plate 212 rotates to one end of the pull plate 25, it can limit the pull plate 25 and prevent the pull plate 25 from being pulled accidentally.

[0024] Example 2 The difference between this embodiment and embodiment 1 is that the dustproof assembly 8 includes a dustproof plate 81, a dustproof plate 81 is provided on the side of the check valve 6 away from the airbag 4, a groove 82 corresponding to the dustproof plate 81 is provided in the check valve 6, the dustproof plate 81 and the check valve 6 are connected by a fixing bolt 83, a fixing hole 85 corresponding to the fixing bolt 83 is provided in the groove 82, and lifting rods 84 are fixed on both sides of the upper end of the dustproof plate 81.

[0025] By adopting the above technical solution, the dustproof plate 81 is inserted into the groove 82 of the check valve 6, and then the fixing bolt 83 is passed through the dustproof plate 81 and screwed into the fixing hole 85 to achieve the effect of fixing the dustproof plate 81. When disassembling the dustproof plate 81, the dustproof plate 81 can be taken out from the groove 82 by lifting rod 84. The dustproof plate 81 can filter the gas that is filled into the airbag 4 through the check valve 6, so as to prevent impurities from being filled into the airbag 4 when the airbag is filled.

[0026] Specifically, after the dustproof plate 81 is installed into the groove 82, the side of the dustproof plate 81 is in close contact with the inner wall of the groove 82, and through holes corresponding to the fixing bolts 83 are opened on both sides of the dustproof plate 81.

[0027] By adopting the above technical solution, after the dustproof plate 81 is installed into the groove 82, the dustproof plate 81 fits more closely with the inner wall of the groove 82, and the fixing bolt 83 can pass through the dustproof plate 81 and be screwed into the fixing hole 85.

[0028] In this embodiment, the dustproof plate 81 is inserted into the groove 82 of the check valve 6, and then the fixing bolt 83 is passed through the dustproof plate 81 and screwed into the fixing hole 85 to achieve the effect of fixing the dustproof plate 81. When disassembling the dustproof plate 81, the dustproof plate 81 can be taken out from the groove 82 by lifting rod 84. The dustproof plate 81 can filter the gas that is filled into the airbag 4 through the check valve 6, so as to prevent impurities from being filled into the airbag 4 when the airbag is filled.

[0029] The structure and working principle of the clamping flange 1, airbag 4, inner sealing ring 5, check valve 6 and clamping flange 7 in this utility model have been disclosed in an expansion sealing ring for pipe connection disclosed in Chinese patent application No. 2018209115108.

[0030] The working principle and usage process of this utility model: When using the sealing ring for heat exchanger pipes, install the device in a suitable position, place the pipes to be connected into clamping flange 1, pull the pull plate 25 to drive the slide rod 26 and the limiting plate 27 to slide in the fixed seat 21, the spring 29 is compressed, and the clamping flange 27 is rotated to close, the folding plate 22 at one end of the clamping flange 27 enters the slot 23 at the upper end of the fixed seat 21, release the pull plate 25, the spring 29 extends and pushes one end of the slide rod 26 into the locking hole 24 of the folding plate 22, achieving the effect of limiting the folding plate 22 and clamping flange 27, thereby locking clamping flange 27 and clamping flange 1. Then, air can be injected into the air bag 4 through the check valve 6, the air bag 4 squeezes the inner sealing ring 5 against the pipe, thereby locking the inner sealing ring 5 against the pipe. For a better seal, the fixing component 2 facilitates quick locking between clamping flange 27 and clamping flange 1, improving the convenience of the device. It eliminates the need to move the rotating plate 212 when pulling the pull plate 25. The rotating plate 212 rotates on the vertical plate 210 via the rotating shaft 211. After rotating to one end of the pull plate 25, the rotating plate 212 can limit the pull plate 25 and prevent accidental pulling. The dustproof plate 81 is inserted into the groove 82 of the check valve 6, and then the fixing bolt 83 is passed through the dustproof plate 81 and screwed into the fixing hole 85 to achieve the effect of fixing the dustproof plate 81. When disassembling the dustproof plate 81, it can be removed from the groove 82 by lifting rod 84. The dustproof plate 81 can filter the gas that is filled into the airbag 4 through the check valve 6, preventing impurities from being filled into the airbag 4 when it is filled.

[0031] 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 novel sealing ring for heat exchanger pipes, comprising a clamping flange (1), characterized in that: One end of the clamping flange 1 (1) is rotatably connected to the clamping flange 2 (7). Both the clamping flange 1 (1) and the clamping flange 2 (7) are fixed with an outer sealing ring (3). An inner sealing ring (5) is provided on one side of the outer sealing ring (3). An air bag (4) is provided between the inner sealing ring (5) and the outer sealing ring (3). A check valve (6) is installed at one end of the air bag (4). A dustproof component (8) is provided inside the check valve (6). A fixing component (2) is provided between the clamping flange 1 (1) and the clamping flange 2 (7). The fixing component (2) includes a folding plate (22). One end of the clamping flange (7) is fixed with the folding plate (22). One end of the clamping flange (1) is fixed with a fixing seat (21) at a position corresponding to the folding plate (22). The upper end of the fixing seat (21) is provided with a slot (23) corresponding to the folding plate (22). One end of the fixing seat (21) is provided with a pull plate (25). One side of the pull plate (25) is fixed with a slide rod (26). One side between the two slide rods (26) is fixed with a limit plate (27). The fixing seat (21) is provided with a cavity (28) corresponding to the limit plate (27). The slide rod (26) between the limit plate (27) and the fixing seat (21) is sleeved with a spring (29). The folding plate (22) is provided with a locking hole (24) corresponding to the slide rod (26).

2. The novel sealing ring for heat exchanger pipes according to claim 1, characterized in that: The fixing component (2) also includes a vertical plate (210), a rotating shaft (211) and a rotating plate (212). The vertical plate (210) is fixed on one side of the upper end of the fixing base (21) at a position corresponding to the pull plate (25). One end of the vertical plate (210) is rotatably connected to the rotating shaft (211), and the other end of the rotating shaft (211) is fixed to the rotating plate (212).

3. The novel sealing ring for heat exchanger pipes according to claim 1, characterized in that: The upper end of the pull plate (25) protrudes from the upper end of the fixed seat (21). The fixed seat (21) has a sliding hole corresponding to the slide rod (26). The side of the slide rod (26) near the fixed seat (21) is set with an arc structure.

4. The novel sealing ring for heat exchanger pipes according to claim 2, characterized in that: The rotating shaft (211) and the vertical plate (210) are connected by damping rotation. When the pull plate (25) is not pulled, the side of the pull plate (25) is flush with the side of one end of the rotating plate (212).

5. The novel sealing ring for heat exchanger pipes according to claim 1, characterized in that: The dustproof assembly (8) includes a dustproof plate (81). The check valve (6) is provided with a dustproof plate (81) on the side away from the airbag (4). The check valve (6) has a groove (82) corresponding to the dustproof plate (81). The dustproof plate (81) and the check valve (6) are connected by a fixing bolt (83). The groove (82) has a fixing hole (85) corresponding to the fixing bolt (83). Lifting rods (84) are fixed on both sides of the upper end of the dustproof plate (81).

6. A novel sealing ring for heat exchanger pipes according to claim 5, characterized in that: After the dustproof plate (81) is installed into the groove (82), the side of the dustproof plate (81) is in close contact with the inner wall of the groove (82), and the dustproof plate (81) has through holes on both sides corresponding to the fixing bolts (83).

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