Quickly-assembled combined sealing cover for tank and inner cylinder of water heater

Abstract

The application discloses a quick-assembly type tank combined sealing cover and an inner cylinder of a water heater, which comprises a plurality of disc-shaped first sealing covers, second sealing covers, third sealing covers and embracing rings, one side of each of the first sealing covers, the second sealing covers and the third sealing covers is provided with a mounting sleeve, a plurality of detachable first sealing rings are arranged on the mounting sleeve, detachable circulating joint assemblies are arranged between the first sealing cover and the second sealing cover and between adjacent two second sealing covers, hollow water inlet and outlet joints are arranged at the center positions of the first sealing cover and the third sealing cover, and a stepped surface is arranged on the inner wall of the embracing ring and is recessed inwards, so that the mounting and dismounting of the sealing cover are facilitated; the welding process is no longer used in the assembly of the inner cylinder body, production resources are effectively saved, and the safety performance of the product is improved; and the sealing covers are all made of high-density plastic materials.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water heaters, and more particularly relates to a quick-mounting type tank combined sealing cover and water heater inner cylinder. BACKGROUND

[0002] An industrial solar water heater is internally provided with an inner cylinder body composed of a plurality of cylindrical pipes, the inner cylinder is connected with an external water pipe, and a connecting pipe is welded between adjacent cylindrical pipes to enable the interiors of the cylindrical pipes to be communicated with each other. Currently, a sealing cover made of 304 stainless steel is used at both ends of the cylindrical pipe, and the sealing cover is connected at both ends of the cylindrical pipe by welding. In use, the sealing cover is very easy to be corroded in a high-temperature water environment in the cylinder, and the welding position of the sealing cover and the cylindrical pipe is also easy to be corroded.

[0003] When the sealing cover is corroded and leaks, the entire inner cylinder body can only be disassembled and replaced, which is inconvenient to disassemble and has high maintenance cost. Generally, it is suggested to replace the entire water heater, which increases the investment cost of the user.

[0004] Therefore, a combined sealing cover made of plastic material and convenient to disassemble is designed, which prolongs the service life of the sealing cover, facilitates disassembly, and reduces maintenance cost. SUMMARY

[0005] In view of the deficiencies of the prior art, the application provides a quick-mounting type tank combined sealing cover and water heater inner cylinder, which facilitates the installation and disassembly of the sealing cover and reduces maintenance cost.

[0006] To achieve the above object, the application provides the following technical scheme: a quick-mounting type tank combined sealing cover, comprising a plurality of disc-shaped first sealing covers, second sealing covers, third sealing covers and a clamping ring, one side of each of the first sealing cover, the second sealing cover and the third sealing cover is provided with a mounting sleeve, a plurality of detachable first sealing rings are arranged on the mounting sleeve, a detachable circulation joint assembly is arranged between the first sealing cover and the second sealing cover and between adjacent two second sealing covers, a hollow water inlet and outlet joint is arranged at the center position of the first sealing cover and the third sealing cover, a stepped surface is arranged on the inner wall of the clamping ring, and the stepped surface is recessed inward.

[0007] Further, the circulation joint assembly comprises a first circulation joint and a second circulation joint which are both hollow, a connecting head is arranged on the first circulation joint, a second sealing ring is arranged on the connecting head, and the connecting head is detachably connected with the second circulation joint.

[0008] Further, a connecting ring groove is arranged on the connecting head near the first circulating joint, and the end of the second circulating joint is provided with a connecting groove corresponding to the connecting ring groove, and a connecting piece is arranged between the connecting groove and the connecting ring groove, the connecting piece is in the shape of "U", and the connecting piece is inserted into the connecting groove and the connecting groove in sequence to fix the first circulating joint and the second circulating joint.

[0009] Further, the same side of the second sealing cover is provided with the first circulating joint and the second circulating joint, and the openings of the first circulating joint and the second circulating joint face the same direction.

[0010] Further, an inner thread is arranged on the inner wall of the embracing ring, and an outer thread matched with the inner thread is arranged on the outer circular side surface of the first sealing cover, the second sealing cover and the third sealing cover.

[0011] Further, a positioning assembly is arranged between the third sealing cover and the second sealing cover and between two adjacent second sealing covers, the positioning assembly comprises two positioning pieces, and a positioning plane is arranged on each of the two positioning pieces, and the two positioning planes abut against each other.

[0012] Further, the first sealing cover, the second sealing cover, the third sealing cover and the embracing ring are made of plastic.

[0013] Further, a mounting wrench is further included, an arc-shaped contact part is arranged on the mounting wrench, a plurality of wrench grooves are arranged on the outer circular side surface of the embracing ring, and a plurality of protrusions corresponding to the wrench grooves are arranged on the inner side of the arc-shaped contact part.

[0014] A water heater inner cylinder body comprises a plurality of transversely arranged cylindrical tubes, the two ends of the two cylindrical tubes on the two sides are respectively connected with a first sealing cover and a third sealing cover, the two ends of the plurality of cylindrical tubes in the middle are connected with a second sealing cover, the first sealing cover and the second sealing cover and the two adjacent second sealing covers are connected through a circulating joint assembly, and the water inlet and outlet joints on the first sealing cover and the third sealing cover are connected with external water pipes.

[0015] Compared with the prior art, the beneficial effects of the present application are that the sealing cover originally welded on the cylindrical pipe is replaced by a sealing cover made of plastic material, and the sealing cover is fixed on the cylindrical pipe through the detachable connection mode of the ring and the sealing cover, so that the installation and disassembly of the sealing cover are facilitated, when the sealing cover corrodes and leaks, it can be directly disassembled from the cylindrical pipe and replaced with a new sealing cover, without the need to replace the inner cylinder body, thereby greatly reducing the maintenance cost; the sealing cover adopts a straight insertion type and is threadedly connected with the ring, so that the disassembly is facilitated; the sealing covers of two adjacent cylindrical pipes are provided with a circulating joint assembly, that is, the interiors of the two cylindrical pipes are connected through the circulating joint assembly, the water inlet and outlet joints are arranged on the sealing covers of the cylindrical pipes on both sides of the inner cylinder body, so that the water inlet and outlet of the inner cylinder body are realized; the assembly of the inner cylinder body no longer uses a welding process, thereby effectively saving production resources and improving the safety performance of the product; the sealing cover is made of high-density plastic, and has a longer service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a side view structural schematic diagram of a first sealing cover in the present application.

[0017] Figure 2 It is a front view structural schematic diagram of a second sealing cover in the present application.

[0018] Figure 3 It is a side view structural schematic diagram of a third sealing cover in the present application.

[0019] Figure 4 It is a connection schematic diagram of the sealing cover, the ring and the cylindrical pipe in the present application.

[0020] Figure 5 It is a connection structural schematic diagram of a first circulating joint and a second circulating joint.

[0021] Figure 6 It is a structural schematic diagram of a connecting piece.

[0022] Figure 7 It is a structural schematic diagram of a positioning assembly.

[0023] Figure 8 It is a cross-sectional schematic diagram of a ring.

[0024] Figure 9 It is a structural schematic diagram of an installation wrench.

[0025] Figure 10 It is a structural schematic diagram of an inner cylinder body in embodiment two.

[0026] 1. first sealing cover; 2. second sealing cover; 3. third sealing cover; 4. clamping ring; 5. mounting sleeve; 6. first sealing ring; 7. circulating joint assembly; 8. water inlet and outlet joint; 9. stepped surface; 10. first circulating joint; 11. second circulating joint; 12. connecting head; 13. second sealing ring; 14. connecting ring groove; 15. connecting groove; 16. connecting piece; 17. positioning piece; 18. positioning plane; 19. mounting wrench; 20. arc-shaped contact part; 21. wrench groove; 22. protrusion; 23. inner cylinder body; 24. cylindrical pipe; 25. reinforcing rib; 26. protruding ring. DETAILED DESCRIPTION

[0027] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0028] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can explicitly or implicitly include one or more features, and in the description of the present application, the meaning of "several", "several" is two or more, unless otherwise explicitly specified.

[0029] Reference Figures 1 to 10 Further description of the present application.

[0030] Example one:

[0031] A quick-mounting type tank combined sealing cover comprises a plurality of disc-shaped first sealing covers 1, second sealing covers 2, third sealing covers 3 and clamping rings 4, one side of the first sealing covers 1, second sealing covers 2 and third sealing covers 3 is provided with mounting sleeves 5, a plurality of detachable first sealing rings 6 are arranged on the mounting sleeves 5, detachable circulating joint assemblies 7 are arranged between the first sealing covers 1 and the second sealing covers 2 and between adjacent two second sealing covers 2, hollow water inlet and outlet joints 8 are arranged at the center positions of the first sealing covers 1 and the third sealing covers 3, stepped surfaces 9 are arranged on the inner walls of the clamping rings 4, and the stepped surfaces 9 are inwardly recessed.

[0032] Preferably, since the first sealing cover 1, the second sealing cover 2 and the third sealing cover 3 are connected to the cylindrical tube 24 in the same way, in the present embodiment, only the connection process of the first sealing cover 1 and the cylindrical tube 24 is described in detail.

[0033] As shown in Figure 4 Preferably, before the first sealing cover 1 is connected, the end of the cylindrical tube 24 is turned and curled to form a convex ring 26.

[0034] As shown in Figure 4 The connection principle of the first sealing cover 1 is as follows: first, the end of the cylindrical tube 24 is inserted through the hole in the middle of the clasp 4, so that the clasp 4 is sleeved on the cylindrical tube 24, then the end of the cylindrical tube 24 is turned and curled, then the mounting sleeve 5 on the first sealing cover 1 is inserted into the cylindrical tube 24 from the end of the cylindrical tube 24 until the first sealing cover 1 abuts against the end face of the cylindrical tube 24, then the clasp 4 is moved close to the first sealing cover 1 and connected to the first sealing cover 1, and when the clasp 4 is connected to the first sealing cover 1, the convex ring 26 at the end of the cylindrical tube 24 abuts against the inwardly recessed step face 9 on the inner wall of the clasp 4, so that when the first sealing cover 1 is connected to the clasp 4, the first sealing cover 1 is fixed at the end of the cylindrical tube 24 by the abutment of the step face 9 and the convex ring 26, thereby realizing the connection of the first sealing cover 1. After the first sealing cover 1 is connected, the first sealing cover 1 can be sealed by the first sealing ring 6 on the mounting sleeve 5 to prevent leakage. The connection and disconnection are relatively convenient, and the sealing cover is no longer welded, thereby reducing the special production process such as welding, saving production resources, and improving the safety performance of the product. When the first sealing cover 1 corrodes and leaks, the first sealing cover 1 can be timely disassembled and replaced without replacing the entire inner cylinder body 23, thereby reducing the maintenance cost.

[0035] As shown in Figure 1 Preferably, in the present embodiment, the circulation joint assembly 7 includes a first circulation joint 10 and a second circulation joint 11, both of which are hollow. The first circulation joint 10 is provided with a connecting head 12, and the connecting head 12 is provided with a second sealing ring 13. The connecting head 12 is detachably connected to the second circulation joint 11. The detachable connection of the first circulation joint 10 and the second circulation joint 11 can replace the originally welded connecting pipe, thereby facilitating the separate disassembly and replacement of a certain cylindrical tube 24 on the inner cylinder body 23, so as to reduce the maintenance cost.

[0036] As shown in Figure 5 and Figure 6As shown, in this preferred embodiment, a connecting ring groove 14 is provided on the connector 12 near the first circulation connector 10, and connecting grooves 15 corresponding to the connecting ring groove 14 are provided on both sides of the end of the second circulation connector 11. A connecting piece 16 is provided between the connecting groove 15 and the connecting ring groove 14. The connecting piece 16 is U-shaped. The connecting piece 16 extends into the connecting groove 15 and the connecting slide groove in sequence to fix the first circulation connector 10 and the second circulation connector 11. When the first circulation connector 10 is connected to the second circulation connector 11, the first circulation connector... The connector 12 on the first circulation connector 10 is fully inserted into the second circulation connector 11, aligning the connecting ring groove 14 on the connector 12 with the connecting groove 15 on the second circulation connector 11. Then, the U-shaped connecting piece 16 is inserted from the connecting groove 15 until it extends into the connecting ring groove 14, thus connecting the first circulation connector 10 and the second circulation connector 11. The second sealing ring on the connector 12 provides a seal to prevent leakage. When separating the two sealing caps, the connecting tube can be pulled out from the connecting groove 15 to separate the first circulation connector 10 and the second circulation connector 11.

[0037] like Figure 2 As shown in this embodiment, preferably, the second sealing cover 2 is provided with a first circulation connector 10 and a second circulation connector 11 on the same side, and the openings of the first circulation connector 10 and the second circulation connector 11 face the same direction. When two adjacent cylindrical tubes 24 are connected, the first circulation connector 10 and the second circulation connector 11 can be connected at the same time, thereby increasing the flow rate and connection strength between the two cylindrical tubes 24.

[0038] like Figure 4 As shown in this embodiment, preferably, the inner wall of the retaining ring 4 is provided with an internal thread, and the outer circular sides of the first sealing cover 1, the second sealing cover 2 and the third sealing cover 3 are provided with external threads that match the internal threads. That is, the retaining ring 4 and the sealing cover are connected by threads, which makes connection and disassembly convenient and improves the sealing effect of the sealing cover.

[0039] like Figure 7 As shown in the preferred embodiment, a positioning component is provided between the third sealing cover 3 and the second sealing cover 2, as well as between two adjacent second sealing covers 2. The positioning component includes two positioning pieces 17, and positioning planes 18 are provided on the two positioning pieces 17. The two positioning planes 18 are in contact with each other. When connecting two adjacent cylindrical tubes 24, the positioning planes 18 on the two positioning pieces 17 can be made to be in contact with each other first. After the two positioning planes 18 are in contact with each other, the first circulation joint 10 on the sealing cover is aligned with the second circulation joint 11 on the adjacent sealing cover, thereby facilitating the connection of the first circulation joint 10 and the second circulation joint 11.

[0040] Preferably, the positioning piece 17 on the second sealing cover 2 is located on the other side of the second sealing cover 2 opposite to the first circulation joint 10 and the second circulation joint 11.

[0041] As shown in Figure 7 Preferably, the positioning piece 17 is provided with a positioning groove, and the positioning plane 18 is the bottom surface of the positioning groove. When the two positioning planes 18 are in close contact with each other, the end of the positioning piece 17 is in abutment with the side wall of the positioning groove, thereby ensuring the connection distance between the two adjacent cylindrical pipes 24.

[0042] As shown in Figure 8 and Figure 9 Preferably, the embodiment further comprises a mounting wrench 19, the mounting wrench 19 is provided with an arc-shaped contact part 20, the outer circular side surface of the clamping ring 4 is provided with a plurality of evenly distributed wrench grooves 21, the inner side of the arc-shaped contact part 20 is provided with a plurality of protrusions 22 corresponding to the wrench grooves 21. When the clamping ring 4 is connected with the first sealing cover 1, the plurality of protrusions 22 on the arc-shaped contact part 20 are respectively corresponding to the wrench grooves 21 on the clamping ring 4, and then the arc-shaped contact part 20 is in abutment with the outer circular side surface of the clamping ring 4. By wiggling the mounting wrench 19, the clamping ring 4 can be rotated and tightened, and vice versa. This facilitates the connection and disassembly of the clamping ring 4.

[0043] Preferably, the first sealing cover 1, the second sealing cover 2, the third sealing cover 3 and the clamping ring 4 are all made of high-density plastic material, which has stronger corrosion resistance and improves the service life of the sealing cover.

[0044] Preferably, the thickness of the first sealing cover 1, the second sealing cover 2 and the third sealing cover 3 is at least 5mm.

[0045] As shown in Figures 1 to 3 Preferably, the first sealing cover 1, the second sealing cover 2 and the third sealing cover 3 are all provided with a plurality of reinforcing ribs 25.

[0046] Embodiment two:

[0047] As shown in Figure 10 A water heater inner cylinder main body 23 using the sealing cover described in embodiment one, comprising a plurality of transversely arranged cylindrical pipes 24, the two ends of the two cylindrical pipes 24 at the opening are respectively connected with the first sealing cover 1 and the third sealing cover 3, and the two ends of the plurality of cylindrical pipes 24 in the middle are all connected with the second sealing cover 2. The first sealing cover 1 and the second sealing cover 2 are connected through the circulation joint assembly 7, and the first sealing cover 1 and the third sealing cover 3 are connected with the external water pipe through the water inlet and outlet joint 8, thereby realizing the connection between the plurality of cylindrical pipes 24.

[0048] The other technical features in this embodiment are the same as those in embodiment one.

[0049] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A quick-mount canister assembly closure, characterized by: The utility model provides a kind of sealing cover, including several disc-shaped first sealing cover, second sealing cover, third sealing cover and embrace ring, the side of first sealing cover, second sealing cover and third sealing cover is provided with mounting sleeve, and several detachable first sealing ring is provided on mounting sleeve, detachable circulation joint assembly is provided between first sealing cover and second sealing cover, between adjacent two second sealing covers, hollow water inlet and outlet joint is provided in the central position of first sealing cover and third sealing cover, and step surface is provided on the inner wall of embrace ring, and step surface is recessed inwardly; The circulation joint assembly includes a first circulation joint and a second circulation joint, both of which are hollow. The first circulation joint is provided with a connecting head, and the connecting head is provided with a second sealing ring. The connecting head is detachably connected with the second circulation joint. The first sealing cover, the second sealing cover and the third sealing cover are connected with the cylindrical tube. The end of the cylindrical tube is turned and curled to form a convex ring, which abuts against the inwardly recessed step surface of the embrace ring.

2. The quick-mount can combination seal cover according to claim 1, characterized in that: The connecting head is provided with a connecting ring groove near the first circulation joint. The end of the second circulation joint is provided with a connecting groove corresponding to the connecting ring groove. The connecting groove and the connecting ring groove are provided with a connecting piece. The connecting piece is in the shape of "U". The connecting piece is inserted into the connecting groove and the connecting sliding groove in sequence to fix the first circulation joint and the second circulation joint.

3. The quick-mount can combination seal cover according to claim 2, wherein: The same side of the second sealing cover is provided with the first circulation joint and the second circulation joint, and the openings of the first circulation joint and the second circulation joint face the same direction.

4. The quick-mount can combination seal cover according to claim 3, characterized in that: The inner wall of the embrace ring is provided with internal threads. The outer circular side surface of the first sealing cover, the second sealing cover and the third sealing cover is provided with external threads corresponding to the internal threads.

5. The quick-mount can combination seal cover according to claim 4, wherein: The third sealing cover and the second sealing cover, as well as adjacent two second sealing covers, are provided with a positioning assembly. The positioning assembly includes two positioning pieces, and the two positioning pieces are provided with positioning planes. The two positioning planes abut against each other.

6. The quick-mount can combination seal cover according to claim 5, wherein: The first sealing cover, the second sealing cover, the third sealing cover and the embrace ring are all made of plastic material.

7. The quick-mount can combination seal cover according to claim 6, wherein: The installation wrench is also provided. The installation wrench is provided with an arc-shaped contact part. The outer circular side surface of the embrace ring is provided with a plurality of evenly distributed wrench grooves. The inner side of the arc-shaped contact part is provided with a plurality of protrusions corresponding to the wrench grooves.

8. A water heater inner tank body using the sealing cover as claimed in claim 1, comprising a plurality of horizontally arranged cylindrical tubes, characterized in that: The two ends of the two cylindrical tubes on both sides are connected with the first sealing cover and the third sealing cover, respectively. The two ends of the plurality of cylindrical tubes in the middle are connected with the second sealing cover. The first sealing cover and the second sealing cover, as well as adjacent two second sealing covers, are connected through the circulation joint assembly. The water inlet and outlet joints on the first sealing cover and the third sealing cover are connected with external water pipes.

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