Heat supply heat preservation pipe based on hole net steel belt

Abstract

The utility model relates to a heat supply heat preservation pipe based on a hole net steel belt, which belongs to the technical field of hole net steel belt composite pipes and comprises a hole net steel belt composite pipe, and a splicing structure and a locking structure are arranged on the hole net steel belt composite pipe. According to the heat supply heat preservation pipe based on the hole net steel belt, by arranging a splicing structure and a locking structure, one ends of the two hole net steel belt composite pipes are sleeved with a connecting cylinder, the two hole net steel belt composite pipes are communicated through an inserting pipe, a threaded sleeve is rotated, a limiting block is controlled to move, and a positioning ball is extruded through the moving limiting block; the positioning balls are controlled to be clamped into the hole net steel belt composite pipes, so that the two hole net steel belt composite pipes are rapidly connected, the gaps at the connecting positions of the hole net steel belt composite pipes are sealed through the annular sealing gaskets in the sealing assemblies, and therefore the sealing performance after connection is guaranteed; and moreover, workers can conveniently and quickly complete the splicing work of the hole net steel belt composite pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of hole mesh steel strip composite pipes, in particular to a heat supply and insulation pipe based on hole mesh steel strips. Background Technique

[0002] The heat supply and insulation pipe based on hole mesh steel strips, also known as hole mesh steel strip composite pipe, is a material with excellent performance, mainly used for the transportation of heat supply, cold supply and hot oil. The hole mesh steel strip composite pipe is made of high-quality cold-rolled steel strip. After being cold-bent into shape by a mold, it is then welded by electricity. Its structural features include a composite technology composed of a hot water hole mesh steel strip and a polyethylene pipe. The insulation layer uses rigid polyurethane foam plastic, and the protective shell uses high-density polyethylene or fiberglass. The hole mesh steel strip composite pipe has good corrosion resistance, which mainly benefits from the excellent chemical corrosion resistance of the polyethylene pipe, and has high pressure resistance, excellent heat conduction performance and heat insulation effect.

[0003] At present, in the prior art, the hole mesh steel strip composite pipe is mainly composed of a rigid polyurethane foam plastic inner lining, a hole mesh steel strip skeleton middle layer and a polyethylene plastic outer layer. During the actual installation and use process, it is necessary to install the hole mesh steel strip composite pipe according to the pipeline laying route. The entire heat supply pipe network is composed of multiple hole mesh steel strip composite pipes spliced together. Usually, the splicing of the hole mesh steel strip composite pipe is carried out by electrofusion connection or flange connection. Both connection methods require processing of the splicing ends of the general hole mesh steel strip composite pipe, so that the splicing process is relatively troublesome. Therefore, a heat supply and insulation pipe based on hole mesh steel strips is proposed to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a heat supply and insulation pipe based on hole mesh steel strips, which has the advantage of quickly splicing hole mesh steel strip composite pipes, and solves the problem that during the actual installation and use process, it is necessary to install the hole mesh steel strip composite pipe according to the pipeline laying route. The entire heat supply pipe network is composed of multiple hole mesh steel strip composite pipes spliced together. Usually, the splicing of the hole mesh steel strip composite pipe is carried out by electrofusion connection or flange connection. Both connection methods require processing of the splicing ends of the general hole mesh steel strip composite pipe, so that the splicing process is relatively troublesome.

[0005] To achieve the above object, the utility model provides the following technical scheme: A heat supply and insulation pipe based on hole mesh steel strips, including a hole mesh steel strip composite pipe, and a splicing structure and a locking structure are arranged on the hole mesh steel strip composite pipe;

[0006] The splicing structure includes a connecting cylinder sleeved on the outer surface of the hole mesh steel strip composite pipe. An insertion pipe is fixedly installed inside the connecting cylinder, with one end penetrating and extending into the inside of the hole mesh steel strip composite pipe. A sealing component for sealing the connection gap is arranged inside the connecting cylinder. Installation grooves are formed at the top and bottom of the connecting cylinder, and positioning balls for clamping the hole mesh steel strip composite pipe are arranged inside both installation grooves. Limit blocks for restricting the positions of the positioning balls are slidably installed inside both installation grooves.

[0007] Furthermore, the locking structure includes a threaded sleeve threadedly installed on the outer surface of the connecting cylinder. A connecting ring is rotatably installed on the inner peripheral wall of the threaded sleeve, and the inner peripheral wall of the connecting ring is fixedly connected to the two limit blocks. A friction component is arranged on the outer surface of the threaded sleeve.

[0008] Furthermore, the hole mesh steel strip composite pipe includes a hole mesh steel strip skeleton middle layer, a polyethylene plastic outer layer, and a rigid polyurethane foam plastic inner lining. The hole mesh steel strip skeleton middle layer is installed inside the polyethylene plastic outer layer, and the rigid polyurethane foam plastic inner lining is installed on the inner peripheral wall of the hole mesh steel strip skeleton middle layer.

[0009] Furthermore, the sealing component includes two annular gaskets, which are respectively clamped on the inner wall of the connecting cylinder and sleeved on the outer surface of the insertion pipe.

[0010] Furthermore, both installation grooves include a trapezoidal groove and a sliding groove. The trapezoidal groove and the sliding groove on the same side are connected. The positioning ball is installed inside the trapezoidal groove, and the limit block is slidably installed inside the sliding groove.

[0011] Furthermore, an annular groove is formed on the inner peripheral wall of the threaded sleeve, and the connecting ring is rotatably installed inside the annular groove.

[0012] Furthermore, the friction component includes rubber strips, which are fixedly installed on the outer surface of the threaded sleeve and are symmetrically distributed about the center.

[0013] Furthermore, the number of the installation grooves, the positioning balls, and the limit blocks is four each, and they are symmetrically distributed on the connecting cylinder. The number of the locking structures is two.

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

[0015] The heat supply and heat preservation pipe based on hole mesh steel strip realizes the connection of two ends of hole mesh steel strip composite pipes by sleeving a connecting cylinder on one end of the two hole mesh steel strip composite pipes and connecting the two hole mesh steel strip composite pipes through an inserting pipe. By rotating the threaded sleeve and controlling the movement of the limiting block, the moving limiting block is used to squeeze the positioning ball, so as to control the positioning ball to snap into the inside of the hole mesh steel strip composite pipe, so as to quickly connect the two hole mesh steel strip composite pipes. And the gap at the joint of the hole mesh steel strip composite pipe is sealed by the annular gasket in the sealing component, so as to ensure the sealing performance after connection, and it is convenient for the staff to quickly complete the splicing work of the hole mesh steel strip composite pipe, so that the practicability of the heat supply and heat preservation pipe based on hole mesh steel strip is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structure of the present utility model Figure 1 enlarged view of part A in;

[0018] Figure 3 is a three-dimensional schematic diagram of the connecting cylinder and the inserting pipe of the structure of the present utility model.

[0019] In the figure: 1, hole mesh steel strip composite pipe; 11, middle layer of hole mesh steel strip skeleton; 12, polyethylene plastic outer layer; 13, rigid polyurethane foam plastic inner lining; 21, connecting cylinder; 22, inserting pipe; 23, sealing component; 24, installation groove; 25, positioning ball; 26, limiting block; 27, threaded sleeve; 28, connecting ring; 29, friction component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 3 , a heat supply and heat preservation pipe based on hole mesh steel strip in this embodiment includes a hole mesh steel strip composite pipe 1. A splicing structure and a locking structure are arranged on the hole mesh steel strip composite pipe 1. The hole mesh steel strip composite pipe 1 includes a middle layer of hole mesh steel strip skeleton 11, a polyethylene plastic outer layer 12 and a rigid polyurethane foam plastic inner lining 13. The middle layer of hole mesh steel strip skeleton 11 is installed inside the polyethylene plastic outer layer 12, and the rigid polyurethane foam plastic inner lining 13 is installed on the inner peripheral wall of the middle layer of hole mesh steel strip skeleton 11.

[0022] In this example implementation, the splicing structure includes a connecting cylinder 21 sleeved on the outer surface of the perforated mesh steel strip composite pipe 1. An insertion pipe 22 is fixedly installed inside the connecting cylinder 21, with one end penetrating and extending into the interior of the perforated mesh steel strip composite pipe 1, facilitating the connection of two perforated mesh steel strip composite pipes 1. A sealing component 23 for sealing the connection gap is arranged inside the connecting cylinder 21. The sealing component 23 includes two annular gaskets, which are respectively clamped on the inner wall of the connecting cylinder 21 and sleeved on the outer surface of the insertion pipe 22, facilitating the sealing of the gap during splicing. Installation grooves 24 are opened at both the top and bottom of the connecting cylinder 21. Positioning balls 25 for clamping the perforated mesh steel strip composite pipe 1 are arranged inside both installation grooves 24. Limit blocks 26 for restricting the positions of the positioning balls 25 are slidably installed inside both installation grooves 24, facilitating the extrusion and restriction of the positioning balls 25.

[0023] Among them, both installation grooves 24 include a trapezoidal groove and a sliding groove, and the trapezoidal groove and the sliding groove on the same side are connected. The positioning ball 25 is installed inside the trapezoidal groove, and the limit block 26 is slidably installed inside the sliding groove, facilitating the use of the limit block 26 to extrude the positioning ball 25 and controlling the positioning ball 25 to snap into the perforated mesh steel strip composite pipe 1.

[0024] With the above technical solution, it is realized that the locking structure is used to control the two limit blocks 26 on the same side to extrude the positioning balls 25 in the installation grooves 24, so as to extrude the positioning balls 25 into the perforated mesh steel strip composite pipe 1, thereby connecting the two perforated mesh steel strip composite pipes 1 and the connecting cylinder 21, achieving the rapid completion of the splicing work, and using the annular gaskets in the sealing component 23 to seal the inserted gap.

[0025] In this example implementation, the locking structure includes a threaded sleeve 27 threadedly installed on the outer surface of the connecting cylinder 21. A connecting ring 28 is rotatably installed on the inner peripheral wall of the threaded sleeve 27. The inner peripheral wall of the connecting ring 28 is fixedly connected to the two limit blocks 26. A friction component 29 is arranged on the outer surface of the threaded sleeve 27. The friction component 29 includes rubber strips, which are fixedly installed on the outer surface of the threaded sleeve 27 and are symmetrically distributed about the center, increasing the friction force for contacting and rotating the threaded sleeve 27.

[0026] Among them, an annular groove is opened on the inner peripheral wall of the threaded sleeve 27, and the connecting ring 28 is rotatably installed inside the annular groove, facilitating the normal rotation of the threaded sleeve 27 and driving the connecting ring 28 to move left and right.

[0027] In addition, the number of installation grooves 24, positioning balls 25, and limit blocks 26 is four each and they are symmetrically distributed on the connecting cylinder 21. The number of locking structures is two, facilitating the fixation of both spliced perforated mesh steel strip composite pipes 1.

[0028] By adopting the above technical solution, the two hole mesh steel strip composite pipes 1 are respectively inserted into the interior of the connecting cylinder 21, so that the insertion pipe 22 connects the two hole mesh steel strip composite pipes 1. By rotating the threaded sleeve 27 through the friction assembly 29, the threaded sleeve 27 moves to one side on the outer surface of the connecting cylinder 21. Furthermore, the moving threaded sleeve 27 drives the connecting ring 28 to move synchronously, thereby controlling the movement of the limiting block 26.

[0029] The working principle of the above embodiment is as follows:

[0030] For the heat supply and insulation pipe based on hole mesh steel strip, during splicing and assembly, the two hole mesh steel strip composite pipes 1 are respectively inserted into the interior of the connecting cylinder 21, so that the insertion pipe 22 connects the two hole mesh steel strip composite pipes 1, and the annular gasket in the sealing assembly 23 is used to seal the inserted gap. Then, by rotating the threaded sleeve 27 through the friction assembly 29, the threaded sleeve 27 moves to one side on the outer surface of the connecting cylinder 21. Furthermore, the moving threaded sleeve 27 drives the connecting ring 28 to move synchronously, thereby controlling the two limiting blocks 26 on the same side to squeeze the positioning balls 25 in the installation groove 24, so as to squeeze the positioning balls 25 into the hole mesh steel strip composite pipe 1, thereby connecting the two hole mesh steel strip composite pipes 1 and the connecting cylinder 21 and realizing the work of quickly completing the splicing.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat supply and insulation pipe based on hole mesh steel strip, comprising a hole mesh steel strip composite pipe (1), characterized in that: The perforated mesh steel strip composite pipe (1) is provided with a splicing structure and a locking structure; The splicing structure includes a connecting cylinder (21) sleeved on the outer surface of the perforated mesh steel strip composite pipe (1). An insertion pipe (22) with one end penetrating and extending into the interior of the perforated mesh steel strip composite pipe (1) is fixedly installed inside the connecting cylinder (21). A sealing assembly (23) for sealing the connecting gap is arranged inside the connecting cylinder (21). Installation grooves (24) are formed at the top and bottom of the connecting cylinder (21). Positioning balls (25) for clamping the perforated mesh steel strip composite pipe (1) are arranged inside both installation grooves (24). Limit blocks (26) for restricting the positions of the positioning balls (25) are slidably installed inside both installation grooves (24).

2. The heat supply and heat preservation pipe based on hole network steel strip according to claim 1, characterized in that: The locking structure includes a threaded sleeve (27) threadedly installed on the outer surface of the connecting cylinder (21). A connecting ring (28) is rotatably installed on the inner peripheral wall of the threaded sleeve (27). The inner peripheral wall of the connecting ring (28) is fixedly connected to the two limit blocks (26). A friction assembly (29) is arranged on the outer surface of the threaded sleeve (27).

3. The heat supply and heat preservation pipe based on hole mesh steel strip according to claim 1, characterized in that: The perforated mesh steel strip composite pipe (1) includes a perforated mesh steel strip skeleton middle layer (11), a polyethylene plastic outer layer (12), and a rigid polyurethane foam plastic inner lining (13). The perforated mesh steel strip skeleton middle layer (11) is installed inside the polyethylene plastic outer layer (12). The rigid polyurethane foam plastic inner lining (13) is installed on the inner peripheral wall of the perforated mesh steel strip skeleton middle layer (11).

4. A heat supply and heat preservation pipe based on hole network steel strip according to claim 1, characterized in that: The sealing assembly (23) includes two annular gaskets. The two annular gaskets are respectively clamped on the inner wall of the connecting cylinder (21) and respectively sleeved on the outer surface of the insertion pipe (22).

5. A heat supply and insulation pipe based on hole network steel strip according to claim 1, characterized in that: Both installation grooves (24) include a trapezoidal groove and a sliding groove. The trapezoidal groove and the sliding groove on the same side are communicated. The positioning ball (25) is installed inside the trapezoidal groove. The limit block (26) is slidably installed inside the sliding groove.

6. The heat supply and heat preservation pipe based on hole network steel strip according to claim 2, wherein: An annular groove is formed on the inner peripheral wall of the threaded sleeve (27). The connecting ring (28) is rotatably installed inside the annular groove.

7. A heat supply and heat preservation pipe based on hole mesh steel strip according to claim 2, characterized in that: The friction assembly (29) includes rubber strips. The rubber strips are fixedly installed on the outer surface of the threaded sleeve (27) and are symmetrically distributed about the center.

8. The heat supply and heat preservation pipe based on hole mesh steel strip according to claim 2, characterized in that: The number of the installation grooves (24), the positioning balls (25), and the limit blocks (26) is four and they are symmetrically distributed on the connecting cylinder (21). The number of the locking structures is two.

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