Food-grade lining stainless steel composite pipe

Abstract

The utility model discloses a food-grade lining stainless steel composite pipe, which relates to the technical field of stainless steel composite pipes, and comprises an outer pipe, a supporting mechanism is arranged on the outer ring surface of the outer pipe, the supporting mechanism comprises an auxiliary ring, a connecting rod and a connecting block, in the food-grade lining stainless steel composite pipe, the two ends of the connecting rod are respectively connected with the auxiliary ring and a positioning ring; the buffer ring and the connecting rod are both installed outside the pipeline and can wrap and protect the outside of the pipeline, so that the impact strength of external force on the pipeline is reduced, the buffer layer and the heat preservation layer are arranged inside the outer pipe and can conduct buffer protection on one side of the outer pipe, bending and deformation fracture generated after the pipeline is subjected to the external force are reduced, and the service life of the pipeline is guaranteed. The connecting piece and the extending piece are fixedly connected and integrally formed, the reinforcing plate is connected with the extending piece and the sealing pipe through the auxiliary bolt, the stability of installation of the sealing pipe in the connecting piece can be improved, the sealing pipe is connected with the connecting ends at the two ends, and the pipeline connecting position can be sealed and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel composite pipes, in particular to a food-grade lined stainless steel composite pipe. Background Art

[0002] Food-grade lined stainless steel composite pipe is a new type of pipe with high cost performance. It is mainly used for fluid transportation in food, beverage, medicine and other industries to ensure the hygiene and safety of the fluid.

[0003] For example, Chinese patent CN213177125U discloses a lined stainless steel composite pipe, which includes a pipe body. The pipe body is divided into an inner layer and an outer layer. There is a gap between the inner layer and the outer layer, and an insulating layer is provided in the gap.

[0004] In the above patent, although the inner layer and the outer layer are bonded by an insulating glue layer to solve the problems of short service life and poor corrosion resistance of the pipeline, the pipeline's bending resistance is insufficient. When installed or subjected to external force, the pipeline is easily deformed and bent. When the degree of bending is large, it is easy to cause the pipeline to break, affecting the normal use of the pipeline. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the pipe has insufficient bending resistance, the pipe is easily deformed and bent when installed or subjected to external force, and when the bending degree is large, it is easy to cause the pipe to break, affecting the normal use of the pipe, and to propose a food-grade lined stainless steel composite pipe.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a food-grade lined stainless steel composite pipe, comprising an outer pipe, the outer ring surface of the outer pipe is provided with a supporting mechanism, the supporting mechanism comprises an auxiliary ring, a connecting rod and a connecting block, the auxiliary ring is inserted through the outside of the outer pipe, a bolt is installed between the auxiliary ring and the outer pipe, one side of the auxiliary ring is fixedly connected to the connecting rod, a buffer ring is clamped on the outer ring surface of the connecting rod, the buffer ring is inserted through the outside of the outer pipe, one end of the connecting rod is fixedly connected to a positioning ring, the outer ring surface of the positioning ring is fixedly connected to the connecting block, a reinforcement rod is inserted on one side of the connecting block, the inner wall of the outer pipe is compounded with a buffer layer, one side of the buffer layer is compounded with an insulation layer, and one side of the insulation layer is compounded with a connecting layer and an inner pipe.

[0007] Preferably, one side of the connecting layer is compounded with the inner tube, and the thickness of the connecting layer is the same as that of the thermal insulation layer.

[0008] Preferably, one end of the outer tube is fixedly connected to a connecting end, a connecting piece is inserted through the outside of the connecting end, the connecting piece is penetrated by a reinforcing rod, and one side of the connecting piece is fixedly connected to an extension piece.

[0009] Preferably, a guide rod is fixedly connected to one side of the connecting member, and one end of the guide rod is plugged into the positioning ring.

[0010] Preferably, a sealing tube is fixedly connected to the inner wall of the connecting piece, the inner wall of the sealing tube is connected to the connecting end via threads, and an auxiliary piece is fixedly connected to the inner annular surface of the sealing tube.

[0011] Preferably, the auxiliary member is connected to an auxiliary bolt via a thread, and the auxiliary bolt is connected to the extension member via a thread.

[0012] Preferably, one side of the extension piece is fixedly connected to a reinforcement plate, one side of the reinforcement plate is fixedly connected to an extension bar, the extension bar is threadedly connected to a positioning bolt, and one end of the positioning bolt is threadedly connected to a positioning ring.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, both ends of the connecting rod are connected to the auxiliary ring and the positioning ring respectively. The buffer ring and the connecting rod are installed on the outside of the pipeline, which can wrap and protect the outside of the pipeline, thereby reducing the impact of external force on the pipeline. The buffer layer and the insulation layer are arranged inside the outer pipe, which can provide buffering protection for one side of the outer pipe, thereby reducing the bending and deformation and fracture of the pipeline caused by external force, improving the bending resistance and ensuring the service life of the pipeline.

[0015] 2. In the present invention, the connector and the extension are fixedly connected and integrally formed. The reinforcement plate is connected to the extension and the sealing tube through an auxiliary bolt, which can improve the stability of the sealing tube installed inside the connector. The sealing tube is connected to the connecting ends at both ends to seal and protect the pipe connection. The reinforcement rod and the guide rod can be used to guide and limit the installation of the positioning ring, which facilitates the installation and removal of the positioning ring on one side of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model proposes a schematic diagram of the overall structure of a food-grade lined stainless steel composite pipe;

[0017] Figure 2 This utility model proposes a schematic diagram of the installation of a positioning bolt structure for a food-grade lined stainless steel composite pipe;

[0018] Figure 3 This utility model proposes a schematic diagram of the connection end structure of a food-grade lined stainless steel composite pipe;

[0019] Figure 4 The utility model provides a schematic diagram of the installation of a buffer layer structure of a food-grade lined stainless steel composite pipe.

[0020] Legend: 1. Reinforcement rod; 2. Buffer ring; 3. Connecting piece; 4. Extension piece; 5. Outer tube; 51. Buffer layer; 52. Insulation layer; 53. Connecting layer; 54. Inner tube; 6. Auxiliary ring; 7. Connecting rod; 8. Positioning ring; 9. Connecting block; 10. Positioning bolt; 11. Reinforcement plate; 12. Connecting end; 13. Auxiliary piece; 14. Sealing tube; 15. Guide rod; 16. Auxiliary bolt. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Reference Figure 1 - Figure 4 As shown: A food-grade lined stainless steel composite pipe, comprising an outer pipe 5, the outer ring surface of the outer pipe 5 is provided with a supporting mechanism, the supporting mechanism comprising an auxiliary ring 6, a connecting rod 7 and a connecting block 9, the auxiliary ring 6 is inserted through the outside of the outer pipe 5, a bolt is installed between the auxiliary ring 6 and the outer pipe 5, one side of the auxiliary ring 6 is fixedly connected to the connecting rod 7, a buffer ring 2 is engaged with the outer ring surface of the connecting rod 7, the buffer ring 2 is inserted through the outside of the outer pipe 5, one end of the connecting rod 7 is fixedly connected to a positioning ring 8, the outer ring surface of the positioning ring 8 is fixedly connected to the connecting block 9, a reinforcing rod 1 is inserted on one side of the connecting block 9, the inner wall of the outer pipe 5 is compounded with a buffer layer 51, one side of the buffer layer 51 is compounded with an insulation layer 52, one side of the insulation layer 52 is compounded with a connecting layer 53 and an inner pipe 54, one side of the connecting layer 53 is compounded with the inner pipe 54, and the thickness of the connecting layer 53 is the same as that of the insulation layer 52.

[0024] The connection between the auxiliary ring 6 and the outer tube 5 is achieved by bolts, which facilitates the positioning of the auxiliary ring 6 when installed outside the outer tube 5, reduces the sliding of the auxiliary ring 6, and thus improves the support and protection effect of the auxiliary ring 6 on the outer tube 5. The auxiliary ring 6 and the positioning ring 8 can be connected by the connecting rod 7. The connecting block 9 can be used to guide and limit the installation of the positioning ring 8, which facilitates the connection between the positioning ring 8 and the connecting piece 3. The buffer ring 2 can support and buffer one side of the connecting rod 7 to reduce the deformation of the connecting rod 7. The buffer layer 51 and the thermal insulation layer 52 can improve the elasticity of the inner side of the outer tube 5, thereby reducing the deformation of the entire pipeline after being subjected to force.

[0025] Example 2: Figure 1 - Figure 4As shown, one end of the outer tube 5 is fixedly connected to the connecting end 12, and a connecting piece 3 is inserted through the outside of the connecting end 12, and the connecting piece 3 is penetrated by the reinforcement rod 1. One side of the connecting piece 3 is fixedly connected to the extension piece 4, and one side of the connecting piece 3 is fixedly connected to the guide rod 15. One end of the guide rod 15 is plugged into the positioning ring 8. The inner wall of the connecting piece 3 is fixedly connected to the sealing tube 14, and the inner wall of the sealing tube 14 is connected to the connecting end 12 through a thread. The inner annular surface of the sealing tube 14 is fixedly connected to the auxiliary piece 13, and the auxiliary piece 13 is connected to the auxiliary bolt 16 through a thread. The auxiliary bolt 16 is connected to the extension piece 4 through a thread. One side of the extension piece 4 is fixedly connected to the reinforcement plate 11, and one side of the reinforcement plate 11 is fixedly connected to the extension bar, and the extension bar is connected to the positioning bolt 10 through a thread. One end of the positioning bolt 10 is connected to the positioning ring 8 through a thread.

[0026] The connecting end 12 can be used to assist in the connection between one end of the outer tube 5 and the sealing tube 14. The threaded connection between the sealing tube 14 and the connecting end 12 can reduce the looseness of the outer tube 5 after being connected to the connector 3. The guide rod 15 and the tightness of the positioning ring 8 when connected to the connector 3 can be improved. The positioning ring 8 can be fixed by the positioning bolt 10, thereby reducing the displacement of the positioning ring 8. The auxiliary bolt 16 is connected to the auxiliary part 13, which can improve the stability of the sealing tube 14 installed inside the connector 3, thereby ensuring the sealing inside the connector 3. Both ends of the reinforcement rod 1 are plugged into the connecting block 9, which can limit the insertion depth of the connecting block 9, thereby limiting the installation position of the positioning ring 8, improving the support effect on the pipeline connection, and realizing a stable connection between the two pipelines through the connector 3.

[0027] The use method and working principle of this device are as follows: the buffer layer 51 inside the outer tube 5 is made of EPDM rubber, the insulation layer 52 is made of polyurethane insulation material, the connecting layer 53 can ensure the connection between the inner tube 54 and the insulation layer 52, the inner tube 54 is made of stainless steel, and its inner ring surface is provided with an anti-corrosion coating to reduce the corrosion of the liquid to the pipeline. First, insert the connecting end 12 into the connecting piece 3, rotate the connecting end 12 to connect the connecting end 12 to the sealing tube 14, and then install the positioning ring 8 and the auxiliary ring 6 on the outside of the outer tube 5, move the auxiliary ring 6 and the positioning ring 8 until one side of the positioning ring 8 is plugged into the guide rod 15, and the connecting block 9 is connected. The side is plugged into the reinforcement rod 1, and then the positioning bolt 10 is rotated at the bottom of the extension bar to realize the connection between the positioning bolt 10 and the positioning ring 8, and then the bolt on the auxiliary ring 6 is rotated to connect the end of the bolt to the outer ring surface of the outer tube 5. At this time, the installation and fixation of the auxiliary ring 6 and the positioning ring 8 are realized, wherein the buffer ring 2 is made of elastic rubber material. When the entire pipeline is used, when external force collides with the pipeline, it first contacts with the connecting rod 7. The buffer ring 2 buffers one side of the connecting rod 7 to reduce the force strength of the outer tube 5. The buffer layer 51 and the thermal insulation layer 52 can buffer one side of the outer tube 5, thereby reducing the deformation and damage of the outer tube 5 after the force is applied, and avoiding pipeline rupture.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A food-grade lined stainless steel composite pipe, comprising an outer pipe (5), characterized in that: The outer ring surface of the outer tube (5) is provided with a support mechanism, and the support mechanism includes an auxiliary ring (6), a connecting rod (7) and a connecting block (9). The auxiliary ring (6) is inserted through the outside of the outer tube (5), and a bolt is installed between the auxiliary ring (6) and the outer tube (5). One side of the auxiliary ring (6) is fixedly connected to the connecting rod (7). The outer ring surface of the connecting rod (7) is engaged with a buffer ring (2), and the buffer ring (2) is inserted through the outside of the outer tube (5). One end of the connecting rod (7) is fixedly connected to a positioning ring (8), and the outer ring surface of the positioning ring (8) is fixedly connected to the connecting block (9). A reinforcing rod (1) is inserted on one side of the connecting block (9). The inner wall of the outer tube (5) is compounded with a buffer layer (51), one side of the buffer layer (51) is compounded with a thermal insulation layer (52), and one side of the thermal insulation layer (52) is compounded with a connecting layer (53) and an inner tube (54).

2. The food-grade lined stainless steel composite pipe according to claim 1, characterized in that: One side of the connecting layer (53) is compounded with the inner tube (54), and the thickness of the connecting layer (53) is the same as that of the thermal insulation layer (52).

3. The food-grade lined stainless steel composite pipe according to claim 1, characterized in that: One end of the outer tube (5) is fixedly connected to a connecting end (12), a connecting piece (3) is inserted through the outside of the connecting end (12), the connecting piece (3) is penetrated by the reinforcing rod (1), and one side of the connecting piece (3) is fixedly connected to an extension piece (4).

4. The food-grade lined stainless steel composite pipe according to claim 3, characterized in that: One side of the connecting piece (3) is fixedly connected to a guide rod (15), and one end of the guide rod (15) is plugged into the positioning ring (8).

5. The food-grade lined stainless steel composite pipe according to claim 3, characterized in that: The inner wall of the connecting piece (3) is fixedly connected to a sealing tube (14), the inner wall of the sealing tube (14) is connected to the connecting end (12) via a thread, and the inner annular surface of the sealing tube (14) is fixedly connected to an auxiliary piece (13).

6. The food-grade lined stainless steel composite pipe according to claim 5, characterized in that: The auxiliary member (13) is connected to an auxiliary bolt (16) via a thread, and the auxiliary bolt (16) is connected to the extension member (4) via a thread.

7. The food-grade lined stainless steel composite pipe according to claim 3, characterized in that: One side of the extension piece (4) is fixedly connected to a reinforcement plate (11), one side of the reinforcement plate (11) is fixedly connected to an extension bar, the extension bar is connected to a positioning bolt (10) via a thread, and one end of the positioning bolt (10) is connected to a positioning ring (8) via a thread.

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