Head sealing tool of water heating pipeline

Abstract

The utility model discloses an end socket tool of a water heating pipeline, which comprises an end cover, an end socket, an end socket, an end socket, an end socket and an end socket, the expansion sleeve comprises an expansion part and a connection part which are integrally formed, the expansion part is in a hollow cylinder shape, the connection part is in a hollow inverted cone shape, and the top of the connection part is fixedly arranged on the end cover; the expansion part is sleeved with a sealing ring, the top end of the sealing ring abuts against the outer wall of the connection part, and the lower end of the sealing ring protrudes out of the lower end of the expansion part. The expanding part comprises an expanding head and an adjusting rod, the expanding head is a circular column, the adjusting rod is fixedly arranged in the center of the expanding head in the axial direction of the expanding head, and a conical table is fixedly arranged at the end, close to the adjusting rod, of the expanding head; a bottom plate is arranged at the end, away from the adjusting rod, of the expanding head. The adjusting rod drives the expanding head to slide in the expanding sleeve in the axial direction of the expanding sleeve, the expanding sleeve is expanded, and the bottom plate abuts against the lower end of the sealing ring.

Description

Technical Field

[0001] This utility model relates to the field of end cap technology for plumbing pipes, and more particularly to an end cap tooling for plumbing pipes. Background Technology

[0002] The end of the water pipe needs to be sealed. In the existing technology, the end of the pipe is generally sealed with a cap. The cap is fixed to the end of the pipe by welding. This operation is relatively complicated and requires professional personnel to perform the welding operation. Utility Model Content

[0003] The main objective of this invention is to provide a sealing fixture for plumbing pipes, which solves the problem that in the prior art, the sealing head needs to be fixed to the pipe by welding, which is a complicated operation and requires professional personnel to perform the welding.

[0004] To solve the above-mentioned technical problems, this utility model is implemented as follows: a sealing tool for a water heating pipe, comprising: an end cap, the end cap being disc-shaped, and an expansion sleeve and a support portion being provided at the center of the end cap;

[0005] The expansion sleeve includes an integrally formed expansion portion and a connecting portion. The expansion portion is a hollow cylinder, and the connecting portion is a hollow inverted cone. The axis of the expansion portion and the axis of the connecting portion are on a straight line, and the axis of the expansion portion and the axis of the end cap are on a straight line. The top of the connecting portion is fixedly mounted on the end cap. A sealing ring is fitted around the expansion portion. The top of the sealing ring abuts against the outer wall of the connecting portion, and the lower end of the sealing ring protrudes from the lower end of the expansion portion.

[0006] The expansion part includes an expansion head and an adjusting rod. The expansion head is a cylindrical shape. The adjusting rod is fixedly disposed at the center of the expansion head along its axial direction. A conical platform is fixedly disposed at one end of the expansion head near the adjusting rod, and the conical platform is disposed along the axial direction of the expansion head. The axial length of the expansion head is greater than or equal to the axial length of the expansion part. A base plate is disposed at one end of the expansion head away from the adjusting rod. The adjusting rod drives the expansion head to slide along the axial direction of the expansion sleeve inside the expansion sleeve and expands the expansion sleeve. The base plate abuts against the lower end of the sealing ring.

[0007] As a further technical solution, the outer wall of the expansion portion is provided with multiple slits, the slits are arranged along the axial direction of the expansion portion, the multiple slits are evenly arranged along the circumference of the expansion portion, and the two ends of the slits extend to the connecting portion and the end of the expansion portion away from the connecting portion, respectively.

[0008] As a further technical solution, the diameter of the expansion head is larger than the diameter of the expansion sleeve in its unexpanded state, and the diameter of the end face of the conical platform away from the expansion head is smaller than the diameter of the expansion portion.

[0009] As a further technical solution, the end cap has a threaded hole through its center; the outer wall of the adjusting rod has a corresponding thread, and the adjusting rod passes through the threaded hole and is threadedly connected to the threaded hole.

[0010] As a further technical solution, the adjusting rod is provided with a nut that is threadedly connected to it, and the nut is located outside the end cover.

[0011] As a further technical solution, a fixing sleeve is provided around the outer edge of the end cap, the fixing sleeve is integrally formed with the end cap, and the inner wall of the fixing sleeve is provided with threads.

[0012] As a further technical solution, a pipe adapted to the end cap is provided, wherein the outer wall of the end of the pipe is provided with threads that mate with the fixing sleeve.

[0013] The beneficial effects of this utility model are as follows: This utility model has a simple structure. The fixing sleeve can be fitted onto the end of the pipe and threaded to it. Simultaneously, the end cap can abut against the end face of the pipe, thus performing the first step of sealing. Then, through the cooperation of the expansion sleeve and the expansion part, the sealing ring abuts against the inner wall of the pipe, thus performing the second step of sealing, thereby achieving a seal at the end of the pipe. This application can be directly installed without welding, and the operation is simple and quick, requiring no high level of expertise from professional technicians. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an exploded view of the three-dimensional structure of this utility model;

[0017] Figure 3 This is a detailed internal view of the present invention in its unused state;

[0018] Figure 4 This is a detailed internal view of the present invention in use.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. End cap; 10. Threaded hole; 11. Fixing sleeve; 2. Expansion sleeve; 20. Connecting part; 21. Expansion part; 22. Gap; 23. Connecting sleeve; 3. Expansion part; 30. Expansion head; 31. Adjusting rod; 32. Conical platform; 34. Base plate; 4. Sealing ring; 5. Nut; 6. Pipe. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-4 As shown, this utility model proposes a sealing tool for a water heating pipe 6, including: an end cap 1, which is disc-shaped and has a certain thickness. An expansion sleeve 2 and a support portion 3 are provided at the center of the end cap 1.

[0023] like Figures 1-3 As shown, the expansion sleeve 2 includes an integrally formed expansion portion 21 and a connecting portion 20. The expansion portion 21 is a hollow cylinder, and the connecting portion 20 is a hollow inverted cone. The axis of the expansion portion 21 and the axis of the connecting portion 20 are on a straight line, and the axis of the expansion portion 21 is on a straight line with the axis of the end cap 1. The top of the connecting portion 20 is fixedly mounted on the end cap 1. In this application, the top of the connecting portion 20 is also provided with a hollow cylindrical connecting sleeve 23, wherein the axis of the connecting sleeve 23 is on a straight line with the axis of the end cap 1. The top of the connecting sleeve 23 is fixedly connected to the end cap 1 and can be welded as a whole, while the lower end of the connecting sleeve 23 is fixedly connected to the top of the connecting portion 20. The connecting sleeve 23, the connecting portion 20, and the expansion portion 21 can be integrally formed. Figure 2 As shown, the outer wall of the expansion portion 21 is provided with multiple slits 22. The slits 22 are arranged along the axial direction of the expansion portion 21. The multiple slits 22 are evenly arranged along the circumference of the expansion portion 21. The two ends of the slits 22 extend to the connecting portion 20 and the end of the expansion portion 21 away from the connecting portion 20, respectively.

[0024] like Figure 3 As shown, an elastic sealing ring 4 is fitted on the outside of the expansion part 21. Since the connecting part 20 is inverted conical, the top of the sealing ring 4 can abut against the outer wall of the connecting part 20. The axial length of the sealing ring 4 is slightly longer than the axial length of the expansion part 21, so the lower end of the sealing ring 4 can protrude slightly downward from the lower end of the expansion part 21 by a small distance.

[0025] like Figures 1-4As shown, the expansion part 3 includes an expansion head 30 and an adjusting rod 31. The expansion head 30 is a cylindrical shape. The adjusting rod 31 is fixedly disposed at the center of the expansion head 30 along its axial direction. A conical platform 32 is fixedly disposed at one end of the expansion head 30 near the adjusting rod 31. The conical platform 32 is disposed along the axial direction of the expansion head 30 and is integrally formed with the expansion head 30. The axial length of the expansion head 30 is greater than or equal to the axial length of the expansion part 21. The diameter of the expansion head 30 is greater than the diameter of the expansion sleeve 2 in its unexpanded state. The diameter of the end face of the conical platform 32 away from the expansion head 30 is smaller than the diameter of the expansion part 21. A base plate 34 is disposed at the end of the expansion head 30 away from the adjusting rod 31. The adjusting rod 31 drives the expansion head 30 to slide along the axial direction of the expansion sleeve 2 inside the expansion sleeve 2, thus expanding the expansion sleeve 2. The base plate 34 abuts against the lower end of the sealing ring 4.

[0026] like Figure 3 As shown, a threaded hole 10 is provided through the center of the end cap 1; a corresponding thread is provided on the outer wall of the adjusting rod 31, and the adjusting rod 31 passes through the threaded hole 10 and is threadedly connected to the threaded hole 10. A nut 5 is provided on the adjusting rod 31 and is threadedly connected to it, and the nut 5 is located outside the end cap 1.

[0027] like Figure 3 As shown, this is the state before installation, where the expansion head 30 is located below the expansion sleeve 2, but not inside it, and the expansion sleeve 2 is not expanded. In use, the expansion sleeve 2 is first inserted into the pipe 6, with the end cap 1 abutting against the end face of the pipe 6. This abutment can be achieved manually or with the aid of other auxiliary installation tools in the prior art. Then, the following steps are performed. In the unexpanded state, the outer diameter of the expansion sleeve 2 is slightly smaller than the inner diameter of the pipe 6, allowing it to be inserted into the end of the pipe 6. Then, the adjusting rod 31 is turned... Figure 4 As shown, the adjusting rod 31 is moved outward from the end cover 1, i.e. Figure 4The expansion head 30 is positioned above the expansion section 21, allowing it to move upwards. During this upward movement, the conical platform 32 first inserts into the expansion section 21, followed by the expansion head 30, which gradually moves upwards, opening the expansion section 21. The expansion section 21 then expands the sealing ring 4 outwards, ensuring it fits tightly against the inner wall of the pipe 6. Since the axial length of the expansion head 30 is greater than or equal to the axial length of the expansion section 21, it can completely open the expansion section 21. The expansion head 30 continues to move upwards until the base plate 34 and the lower end of the sealing ring 4 are tightly abutted. This ensures that the bottom of the sealing ring 4 abuts against the base plate 34, and the outer wall abuts against the inner wall of the pipe 6, achieving sealing and plugging of the pipe 6 end. The axial length of the sealing ring 4 is slightly longer than that of the expansion portion 21. This allows the base plate 34 to press the sealing ring 4 upwards and tightly abut against it. Additionally, the sealing ring 4 may slightly move upwards when it is expanded or pressed upwards by the base plate 34; therefore, the slightly longer length of the sealing ring 4 compared to the expansion portion 21 allows for this possibility. Furthermore, the diameter of the base plate 34 can be slightly larger than or equal to the diameter of the sealing ring 4 in its unexpanded state, but smaller than the inner diameter of the pipe 6. This ensures that the sealing ring 4 can still abut against the base plate 34 after it has been expanded.

[0028] When the adjusting rod 31 can no longer move upward, that is, the base plate 34 and the sealing ring 4 are tightly abutting, the adjusting rod 31 can be locked by the nut 5 to prevent the adjusting rod 31 from loosening.

[0029] In addition, to further ensure the stability of the sealing of the six ends of the pipeline, this application includes, for example... Figure 2 and Figure 3 As shown, a fixing sleeve 11 is provided around the outer edge of the end cap 1. The fixing sleeve 11 is integrally formed with the end cap 1, and the inner wall of the fixing sleeve 11 is threaded. Additionally, the pipe 6 adapted to this application requires threads on the outer wall of its end that mate with the fixing sleeve 11. Figure 4 As shown, the fixing sleeve 11 can be fitted onto the outside of the end of the pipe 6 and threadedly connected to the end of the pipe 6, thereby ensuring the stability of the end cap 1 sealing. It is worth noting that when the fixing sleeve 11 is set, when installing the end cap 1, the expansion sleeve 2 needs to be aligned with the inside of the end of the pipe 6 first, and then the fixing sleeve 11 is threadedly connected to the end of the pipe 6. During the threading process, the expansion sleeve 2 is also inserted into the inside of the end of the pipe 6. After the fixing sleeve 11 is tightened, the above-mentioned sealing steps are performed, that is, the expansion sleeve 2 is opened to seal the sealing ring 4 against the inner wall of the pipe 6 and abut against the base plate 34, and the nut 5 is used to lock the adjusting rod 31.

[0030] The above description is only a preferred embodiment of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A water heating pipe end head tooling apparatus, characterized by, The utility model relates to a kind of end cap and pipe connection structure, including: End cap, the end cap is disc, the center of the end cap is equipped with expansion sleeve and expansion part; The expansion sleeve includes integrally-formed expansion part and adapter, the expansion part is hollow cylindrical, the adapter is hollow inverted conical, the axis of the expansion part and the axis of the adapter are on a straight line, the axis of the expansion part and the axis of the end cap are on a straight line, the top of the adapter is fixedly arranged on the end cap;The outer sleeve of the expansion part is equipped with sealing ring, the top end of the sealing ring and the outer wall of the adapter abut, the lower end of the sealing ring protrudes from the lower end of the expansion part; The expansion part includes expansion head and adjusting rod, the expansion head is circular column, the adjusting rod is fixedly arranged in the center of expansion head along the axial direction of expansion head, the end of the expansion head close to the adjusting rod is fixedly provided with conical table, the conical table is arranged along the axial direction of expansion head;The axial length of the expansion head is greater than or equal to the axial length of the expansion part, the end of the expansion head away from the adjusting rod is provided with bottom plate;The adjusting rod drives expansion head to be arranged in the inside of expansion sleeve along the axial direction of expansion sleeve, and expansion sleeve is expanded, the bottom plate and the lower end of the sealing ring abut.

2. The water heating pipe head tooling according to claim 1, characterized in that, The outer wall of the expansion part is provided with a plurality of interstices, the interstices are arranged along the axial direction of the expansion part, and the plurality of interstices are uniformly arranged along the circumferential direction of the expansion part, and the two ends of the interstices extend to the adapter and the end of the expansion part away from the adapter respectively.

3. The water heating pipe head tooling according to claim 1, characterized in that, The diameter of the expansion head is greater than the diameter of the expansion sleeve in the unexpanded state, and the diameter of the end face of the conical table away from the expansion head is less than the diameter of the expansion part.

4. The water heating pipe head tooling according to claim 1, wherein, The center of the end cap is provided with a threaded hole, and the outer wall of the adjusting rod is provided with a corresponding thread, the adjusting rod passes through the threaded hole and is threadedly connected with the threaded hole.

5. A water heating pipe end head tool according to claim 4, wherein The adjusting rod is provided with a nut threadedly connected therewith, and the nut is located outside the end cap.

6. The water heating pipe head tooling apparatus of claim 1, wherein, The outer edge of the end cap is surrounded by a fixing sleeve, the fixing sleeve is integrally formed with the end cap, and the inner wall of the fixing sleeve is provided with a thread.

7. A water heating pipe end head tool according to claim 6, wherein The end of the pipe is provided with a thread matched with the fixing sleeve.

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