A pipe joint connection structure

Abstract

The application relates to a pipeline joint connecting structure in the field of pipeline joints, which comprises a cladding layer and a steel framework, a connecting through hole is preformed on the pipeline steel framework, the cladding layer comprises a framework cladding layer and a through hole cladding layer, the framework cladding layer wraps the steel framework, the through hole cladding layer is located on the hole wall of the connecting through hole, the exposed steel framework can be wrapped, an installation hole is formed by cutting the through hole cladding layer, and a plugging piece for plugging the installation hole is arranged on the framework cladding layer. The application has the effects of avoiding exposure of the steel framework caused by subsequent drilling, avoiding reaction of the steel framework with chemical substances in the pipeline, and prolonging the service life of the pipeline joint.

Description

Technical Field

[0001] This application relates to the field of pipe fittings, and in particular to a pipe fitting connection structure. Background Technology

[0002] Pipe fittings are used in the chemical industry to connect various pipelines, ensuring the continuity and stability of chemical processes. The design and material selection of fittings must consider chemical corrosion and high-temperature environments. To improve the strength of the fittings, a steel skeleton is usually embedded within the plastic coating to enhance its strength.

[0003] When additional accessories (such as thermometers, flow meters, etc.) need to be installed at the pipe joint, holes need to be drilled in the pipe joint. After drilling, the steel frame is exposed and will react with the chemicals in the pipe, which will reduce the service life of the pipe joint. Utility Model Content

[0004] To address the issue that exposed steel skeletons in pipe joints react with chemicals in the pipes during drilling, leading to a reduced service life of the pipe joints, this application provides a pipe joint connection structure.

[0005] The pipe joint connection structure provided in this application adopts the following technical solution: A pipe joint connection structure includes a covering layer and a steel frame. The steel frame has a pre-drilled connection through hole. The covering layer includes a frame covering layer and a through hole covering layer. The frame covering layer wraps around the steel frame. The through hole covering layer is located on the hole wall of the connection through hole to wrap the exposed steel frame. An installation hole is formed by cutting the through hole covering layer. The frame covering layer is provided with a sealing element for sealing the installation hole.

[0006] By adopting the above technical solution, when manufacturing the pipe joint, a connection through hole is reserved on the steel frame. Then, the pipe covering layer covers the steel frame, and the through hole covering layer covers the exposed steel frame in the connection through hole. When installing the attachment, the installation hole is first cut in the through hole covering layer with a cutting tool. Then, the attachment is inserted into the pipe joint through the installation hole to connect. When the attachment is not needed, the installation hole is sealed with a sealing component. This solution avoids the exposure of the steel frame due to subsequent drilling by pre-setting the connection through hole, avoids the reaction between the steel frame and the chemical substances in the pipe, and improves the service life of the pipe joint.

[0007] In one specific implementation, the sealing component includes a sealing branch pipe and a sealing head. The sealing branch pipe is fixedly disposed on the skeleton covering layer and communicates with the mounting hole. The sealing head is used to insert into the sealing branch pipe to seal the opening of the sealing branch pipe.

[0008] By adopting the above technical solution, when sealing the mounting hole, the sealing head is inserted into the sealing branch pipe to achieve the sealing of the mounting hole.

[0009] In one specific implementation, a threaded sleeve is threaded onto the outer wall of the plugging branch pipe, and a connecting rod is hinged to the threaded sleeve. The connecting rod is connected to the plugging head so that the plugging head can be offset from the opening of the plugging branch pipe, and the threaded sleeve can drive the plugging head to press against the plugging branch pipe so as to seal the opening of the plugging branch pipe.

[0010] By adopting the above technical solution, when sealing the opening of the branch pipe, the threaded sleeve is rotated, and the threaded sleeve pulls the sealing head against the opening of the branch pipe through the connecting rod, thereby improving the stability of the sealing head in sealing the branch pipe.

[0011] In one specific implementation, the plugging head includes a circular plate portion and an inner insertion portion, the inner insertion portion being able to be inserted into the plugging branch pipe, and the circular plate portion being able to abut against the end face of the plugging branch pipe.

[0012] By adopting the above technical solution, the inner insert is inserted into the sealing branch pipe to complete the first sealing, and then the circular plate part abuts against the end of the sealing branch pipe to complete the second sealing. Through the two sealing, the sealing performance of the sealing branch pipe opening is improved.

[0013] In one specific implementation, a sealing ring is fitted onto the inner insert, and the circular plate portion can press and fix the sealing ring to the end face of the plugging branch pipe.

[0014] By adopting the above technical solution, the sealing ring is used to abut against the end of the blocking branch pipe, thereby improving the sealing performance of the circular plate portion for the blocking branch pipe opening.

[0015] In one specific implementation, the threaded sleeve is provided with two positioning blocks, and the connecting rod can engage with one of the positioning blocks so that the sealing head is aligned with the opening of the sealing branch pipe, and the connecting rod can engage with the other positioning block so that the sealing head is completely offset from the opening of the sealing branch pipe.

[0016] By adopting the above technical solution and using two positioning blocks to limit the connecting rod, it is possible to ensure the rapid alignment of the sealing head and the sealing branch pipe, and to improve the convenience of the sealing head deviating from the sealing branch pipe.

[0017] In one specific implementation, the threaded sleeve is provided with a telescopic spring connected to the connecting rod, the telescopic spring being able to pull the connecting rod to abut against one of the positioning blocks.

[0018] By adopting the above technical solution, the connecting rod is pulled by a telescopic spring to abut against the positioning block, thus preventing the connecting rod from shaking and improving the stability of one of the limiting positions of the connecting rod.

[0019] In one specific implementation, the telescopic spring is capable of pulling the connecting rod to abut against another of the positioning blocks.

[0020] By adopting the above technical solution, the stability of the connection between the connecting rod and the two positioning blocks is improved by using the connecting rod to abut against another positioning block.

[0021] In one specific implementation, the sealing branch pipe is internally provided with a screw mounting port to enable connection with the pipe thread of the accessory.

[0022] By adopting the above technical solution, the screw mounting port facilitates the connection between the accessory and the sealing branch pipe, and the threaded connection improves the sealing effect of the connection between the accessory and the sealing branch pipe.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. When manufacturing pipe joints, pre-drill connection through holes in the steel frame. Then, the pipe covering layer covers the steel frame, and the through hole covering layer covers the exposed steel frame in the connection through holes. When installing accessories, first use a cutting tool to cut the through hole covering layer to form installation holes, and then insert the accessories into the pipe joint through the installation holes to connect. When accessories are not needed, the installation holes are sealed with plugs. This solution, by pre-drilling connection through holes, avoids subsequent drilling that would expose the steel frame, prevents the steel frame from reacting with the chemical substances in the pipe, and improves the service life of the pipe joint. 2. By using two positioning blocks to limit the connecting rod, it can ensure the quick alignment of the sealing head and the sealing branch pipe, and improve the convenience of the sealing head deviating from the sealing branch pipe, making it easier to insert the attachment into the sealing branch pipe. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a pipe joint connection structure according to an embodiment of this application.

[0025] Figure 2 It is along Figure 1 A cross-sectional view along line AA in the middle.

[0026] Figure 3 yes Figure 1 Enlarged view of section B in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Covering layer; 11. Skeleton covering layer; 12. Through-hole covering layer; 2. Steel skeleton; 3. Connecting through-hole; 4. Mounting hole; 5. Sealing component; 51. Sealing branch pipe; 511. Screw mounting port; 52. Sealing head; 521. Inner insertion part; 522. Circular plate part; 53. Sealing ring; 54. Threaded sleeve; 55. Connecting rod; 56. Positioning block; 57. Telescopic spring. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0029] This application discloses a pipe joint connection structure.

[0030] Reference Figure 1 , Figure 2 A pipe joint connection structure includes a covering layer 1 and a steel frame 2. In this embodiment, a tee joint is used as an example. The material of the covering layer 1 is plastic. The covering layer 1 includes a skeleton covering layer 11 and a through hole covering layer 12. The skeleton covering layer 11 covers the inner and outer layers of the steel frame 2 to cover the steel frame 2.

[0031] Reference Figure 1 , Figure 2 The steel frame 2 of the pipeline is pre-drilled with connecting through holes 3. The number of connecting through holes 3 can be set according to actual needs. The through hole covering layer 12 is located on the hole wall of the connecting through hole 3 and wraps the exposed steel frame 2. Marking lines are set on the outer wall of the through hole covering layer 12 at the position opposite to the connecting through hole 3. Then, the through hole covering layer 12 is cut with a cutting tool to form an installation hole 4 coaxially set with the connecting through hole 3. The diameter of the installation hole 4 is smaller than the diameter of the connecting through hole 3. The frame covering layer 11 is provided with a sealing element 5 for sealing the installation hole 4. The number of sealing elements 5 corresponds one-to-one with the number of connecting through holes 3.

[0032] When manufacturing the pipe joint, a connection through hole 3 is reserved on the steel frame 2. Then, the pipe covering layer 1 covers the steel frame 2, and the through hole covering layer 12 covers the exposed steel frame 2 in the connection through hole 3. When installing the attachment, the installation hole 4 is first cut in the through hole covering layer 12 with a cutting tool. Then, the attachment is connected to the inside of the pipe joint through the installation hole 4. When the attachment is not needed, the installation hole 4 is sealed with a sealing piece 5. This solution avoids the exposure of the steel frame 2 due to subsequent drilling by pre-setting the connection through hole 3, avoids the steel frame 2 from reacting with the chemical substances in the pipe, and improves the service life of the pipe joint.

[0033] Reference Figure 1 , Figure 2In this embodiment, the sealing component 5 includes a sealing branch pipe 51 and a sealing head 52. The sealing branch pipe 51 is a plastic pipe and is welded to the skeleton covering layer 11 by hot melting. A screw mounting port 511 is coaxially fixed on the inner wall of the sealing branch pipe 51. The inner wall of the screw mounting port 511 is provided with an external thread, which engages with the internal thread of the pipe in the accessory to complete the internal connection installation of the accessory pipe joint and improve the convenience of accessory installation. The pipe hole of the plugging branch pipe 51 is connected to the mounting hole 4. In this embodiment, the plugging head 52 includes an inner insertion part 521 and a circular plate part 522. The inner insertion part 521 is cylindrical, and its diameter is adapted to the inner diameter of the plugging branch pipe 51 to form a primary seal on the opening of the plugging branch pipe 51. The diameter of the circular plate part 522 is larger than the inner diameter of the plugging branch pipe 51, and a sealing ring 53 is provided on the side facing the end of the plugging branch pipe 51. The sealing ring 53 is fitted onto the inner insertion part 521, which can improve the stability of the sealing ring 53 installed on the plugging head 52. The circular plate part 522 presses the sealing ring 53 to the end of the plugging branch pipe 51 to form a secondary seal on the plugging branch pipe 51. Through the two seals, the sealing effect of the plugging head 52 on the opening of the plugging branch pipe 51 is improved.

[0034] Reference Figure 2 , Figure 3 A threaded sleeve 54 is threaded onto the outer wall of the sealing branch pipe 51. The outer wall of the sealing branch pipe 51 has a threaded section that engages with the threaded sleeve 54. Two connecting rods 55 are hinged to the threaded sleeve 54, and the two connecting rods 55 are circumferentially opposite each other along the threaded sleeve 54. The other end of each connecting rod 55 is fixedly connected to the sealing head 52. Two positioning blocks 56 are fixedly connected to the threaded sleeve 54. When a connecting rod 55 contacts one positioning block 56, the inner insertion part 521 aligns with the sealing branch pipe 51, improving the ease of alignment between the sealing head 52 and the sealing branch pipe 51. When a connecting rod 55 contacts the other positioning block 56, the sealing head 52 is completely offset from the opening of the sealing branch pipe 51, facilitating the insertion of the attachment into the sealing branch pipe 51. When the plugging head 52 is aligned with the opening of the plugging branch pipe 51, the threaded sleeve 54 is rotated. The threaded sleeve 54 pulls the plugging head 52 into the plugging branch pipe 51 through the connecting rod 55. The inner insertion part 521 is inserted into the plugging branch pipe 51, and the circular plate part 522 is pressed against the end of the plugging branch pipe 51, thereby improving the stability of the plugging head 52 in plugging the plugging branch pipe 51.

[0035] Reference Figure 3The threaded sleeve 54 is provided with a telescopic spring 57 connected to the connecting rod 55. The telescopic spring 57 corresponds to the connecting rod 55 one by one. One end of the telescopic spring 57 is hinged to the threaded sleeve 54, and the other end is hinged to the connecting rod 55. When the connecting rod 55 rotates to the middle position of the two positioning blocks 56, the telescopic spring 57 and the connecting rod 55 are collinear, so that the telescopic spring 57 pulls the connecting rod 55 to abut against the positioning blocks 56 respectively, preventing the connecting rod 55 from shaking and improving the stability of the fit between the connecting rod 55 and the positioning blocks 56.

[0036] The implementation principle of a pipe joint connection structure in this application embodiment is as follows: When manufacturing the pipe joint, a connection through hole 3 is reserved on the steel frame 2. Then, the pipe covering layer 1 covers the steel frame 2, and the through hole covering layer 12 covers the exposed steel frame 2 in the connection through hole 3. When installing the attachment, the installation hole 4 is first cut at the marked line using a cutting tool. Then, the threaded sleeve 54 is rotated, and the threaded sleeve 54 pushes the sealing head 52 to pull out the sealing branch pipe 51 through the connecting rod 55. Then, the sealing head 52 is rotated away from the sealing branch pipe 51. The opening of the plugging branch pipe 51 is opened, and the accessory is inserted into the pipe joint through the mounting hole 4. When the accessory is not needed, the plugging head 52 is rotated to align with the plugging branch pipe 51, and then the threaded sleeve 54 is rotated. The threaded sleeve 54 drives the plugging head 52 to be inserted into the plugging branch pipe 51 to seal the opening of the plugging branch pipe 51. This solution avoids the exposure of the steel skeleton 2 due to subsequent drilling by pre-setting the mounting hole 4, avoids the reaction between the steel skeleton 2 and the chemical substances in the pipe, and improves the service life of the pipe joint.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe joint connection structure, characterized in that: The system includes a covering layer (1) and a steel frame (2). The steel frame (2) of the pipeline is pre-drilled with a connecting through hole (3). The covering layer (1) includes a frame covering layer (11) and a through hole covering layer (12). The frame covering layer (11) wraps the steel frame (2). The through hole covering layer (12) is located on the hole wall of the connecting through hole (3) so as to wrap the exposed steel frame (2). An installation hole (4) is formed by cutting the through hole covering layer (12). The frame covering layer (11) is provided with a sealing element (5) for sealing the installation hole (4).

2. The pipe joint connection structure according to claim 1, characterized in that: The sealing component (5) includes a sealing branch pipe (51) and a sealing head (52). The sealing branch pipe (51) is fixedly disposed on the skeleton covering layer (11) and communicates with the mounting hole (4). The sealing head (52) is used to insert into the sealing branch pipe (51) to seal the opening of the sealing branch pipe (51).

3. The pipe joint connection structure according to claim 2, characterized in that: A threaded sleeve (54) is threaded onto the outer wall of the plugging branch pipe (51). A connecting rod (55) is hinged to the threaded sleeve (54). The connecting rod (55) is connected to the plugging head (52) so that the plugging head (52) can be deviated from the opening of the plugging branch pipe (51). The threaded sleeve (54) can drive the plugging head (52) to press against the plugging branch pipe (51) so as to block the opening of the plugging branch pipe (51).

4. The pipe joint connection structure according to claim 3, characterized in that: The plugging head (52) includes a circular plate portion (522) and an inner insertion portion (521). The inner insertion portion (521) can be inserted into the plugging branch pipe (51), and the circular plate portion (522) can abut against the end face of the plugging branch pipe (51).

5. The pipe joint connection structure according to claim 4, characterized in that: A sealing ring (53) is fitted on the inner insertion part (521), and the circular plate part (522) can press and fix the sealing ring (53) on the end face of the sealing branch pipe (51).

6. The pipe joint connection structure according to claim 3, characterized in that: The threaded sleeve (54) is provided with two positioning blocks (56). The connecting rod (55) can fit with one of the positioning blocks (56) so that the sealing head (52) is aligned with the opening of the sealing branch pipe (51). The connecting rod (55) can fit with the other positioning block (56) so that the sealing head (52) is completely offset from the opening of the sealing branch pipe (51).

7. The pipe joint connection structure according to claim 6, characterized in that: The threaded sleeve (54) is provided with a telescopic spring (57) connected to the connecting rod (55), and the telescopic spring (57) can pull the connecting rod (55) to abut against one of the positioning blocks (56).

8. The pipe joint connection structure according to claim 7, characterized in that: The telescopic spring (57) can pull the connecting rod (55) to abut against another positioning block (56).

9. The pipe joint connection structure according to claim 2, characterized in that: The sealing branch pipe (51) is internally fixed with a screw mounting port (511) so that it can be connected to the pipe thread of the accessory.

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