Strong-sealing high-temperature-resistant hose

Abstract

The utility model relates to a strong sealing high temperature resistant hose, including hose body and two joint, said hose body includes first pipe body and wrapping the second pipe body on the first pipe body, the both ends of the second pipe body extend out of the first pipe body, the both ends inner wall of the second pipe body is equipped with screw thread, the screw thread is equipped with screw thread. The two connectors are in threaded connection with the two ends of the second pipe body correspondingly, and the ends, extending into the second pipe body, of the two connectors abut against the end faces of the two ends of the first pipe body correspondingly. The connection sealing performance of the connector and the hose body is good, and liquid leakage can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hose, in particular to a strong sealing high temperature resistant hose. BACKGROUND

[0002] Hose is very common in the field of hydraulic transmission. By setting the joint on the hose to complete the connection of the hose and the hydraulic component.

[0003] But the existing hose and joint adopt the way of inserting, directly inserting the head of one side of the joint into the hose to complete the connection of the two. The connection mode of inserting will make the sealing between the joint and the hose not good, and the liquid in the hose is very easy to flow out from the connection between the hose and the joint, which will lead to the drop of hydraulic pressure. SUMMARY

[0004] The application provides a strong sealing high temperature resistant hose, the connection sealing of the joint and the hose body is good, which can prevent liquid leakage.

[0005] The application provides a strong sealing high temperature resistant hose, which adopts the following technical scheme:

[0006] A strong sealing high temperature resistant hose, comprising a hose body and two joints, the hose body comprises a first pipe body and a second pipe body wrapped on the first pipe body, the two ends of the second pipe body extend out of the first pipe body, the inner walls of the two ends of the second pipe body are both provided with threads, the two joints are respectively threadedly connected to the two ends of the second pipe body, and the two ends of the first pipe body are respectively in abutment with the one ends of the second pipe body into which the two joints extend.

[0007] By adopting the above technical scheme, the threaded cooperation of the joint and the second pipe body can improve the connection sealing of the joint and the hose body.

[0008] Preferably, a connecting pipe is arranged on the one end of the joint into the second pipe body, the connecting pipe extends into the first pipe body, and the outer wall of the connecting pipe is in close contact with the inner wall of the first pipe body.

[0009] By adopting the above technical scheme, the connection sealing between the joint and the first pipe body is improved.

[0010] Preferably, the diameter of one end of the connecting pipe is greater than that of the other end, the one end with the greater diameter of the connecting pipe is the large end, the one end with the smaller diameter of the connecting pipe is the small end, the large end is connected with the connecting pipe, the diameter of the large end is greater than that of the first pipe body, the diameter of the small end is smaller than that of the first pipe body, and the large end is in interference fit with the first pipe body.

[0011] By adopting the above technical scheme, the connecting pipe is conveniently inserted into the first pipe body. Meanwhile, the connection sealing between the connecting pipe and the first pipe body is improved.

[0012] Preferably, the outer wall of the connecting pipe is provided with a ring groove, and a sealing ring is arranged in the ring groove, and the sealing ring is pressed against the inner wall of the first pipe body by the connecting pipe.

[0013] By adopting the above technical scheme, the sealing performance of the connecting pipe and the first pipe body at the connection position is further improved.

[0014] Preferably, the joint is provided with a metal pipe, the metal pipe is sleeved on the second pipe body, and the metal pipe is pressed against the first pipe body and the second pipe body by the connecting pipe.

[0015] By adopting the above technical scheme, the connection sealing performance between the connecting pipe and the first pipe body is further improved.

[0016] Preferably, the first pipe body is a fluorine rubber hose, the second pipe body comprises a PVC threaded pipe wrapped on the first pipe body, a first protective pipe wrapped on the PVC threaded pipe, and the joint is threadedly connected on the PVC threaded pipe.

[0017] By adopting the above technical scheme, the fluorine rubber hose has excellent high-temperature resistance, and the hose body can be applied to a high-temperature liquid working environment. The threaded pipe is arranged to facilitate the connection of the joint and the hose body, and the first protective pipe is arranged to protect the threaded pipe and the first pipe body.

[0018] Preferably, the first protective pipe is woven by a plurality of metal wires.

[0019] By adopting the above technical scheme, the first protective pipe woven by the metal wires has excellent protection performance and heat conduction performance, and the high-temperature resistance upper limit of the hose is improved.

[0020] Preferably, the second pipe body further comprises a second protective pipe wrapped on the first protective pipe, the second protective pipe is formed by winding rubber cloth on the first protective pipe, and the surface of the second protective pipe is provided with a plurality of air holes, and the plurality of air holes are communicated with the outside and the first protective pipe.

[0021] By adopting the above technical scheme, the second protective pipe can prevent the metal wires of the first protective pipe from being rubbed and broken by external objects. The air holes are arranged to help the first protective pipe to conduct heat.

[0022] The technical effects of the utility model mainly lie in the following aspects:

[0023] 1. The utility model improves the connection sealing performance of the joint and the hose body by threadedly cooperating the joint with the second pipe body.

[0024] 2. The utility model further improves the anti-leakage performance of the product by arranging the connecting pipe.

[0025] 3. The utility model discloses a metal pipe and the cooperation of connecting pipe improve the sealing property of product. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structural schematic diagram of the soft pipe of the application.

[0027] Figure 2 It is Figure 1 The partial sectional view of the soft pipe along A-A line in the application.

[0028] Figure 3 It is Figure 2 The partial enlarged view of B in the application.

[0029] Fig. 1, soft pipe body; 2, joint; 3, first pipe body; 4, second pipe body; 5, connecting pipe; 51, large end; 52, small end; 53, ring groove; 6, sealing ring; 7, metal pipe; 8, PVC threaded pipe; 9, first protective pipe; 10, second protective pipe; 11, air hole. DETAILED DESCRIPTION

[0030] The application will be further described in detail below in combination with the accompanying drawings, figures and embodiments, so that the technical scheme of the application is easier to understand and grasp. Figure 1 , the accompanying Figure 2 and the accompanying Figure 3 further detailed description of the application, so that the technical scheme of the application is easier to understand and grasp.

[0031] The strong sealing high temperature resistant soft pipe of the embodiment includes a soft pipe body 1 and two joints 2. The soft pipe body 1 includes a first pipe body 3 and a second pipe body 4 wrapped on the first pipe body 3, and the two ends of the second pipe body 4 extend out of the first pipe body 3.

[0032] The first pipe body 3 is a fluorine rubber soft pipe. The second pipe body 4 includes a PVC threaded pipe 8 wrapped on the first pipe body 3, and a first protective pipe 9 wrapped on the PVC threaded pipe 8. The first protective pipe 9 is formed by winding a plurality of metal wires on the surface of the PVC threaded pipe 8, and the metal wire is an iron wire. The first protective pipe 9 formed by winding the metal wire has excellent protective performance and heat conduction performance, and can improve the upper limit of the soft pipe temperature resistance.

[0033] The second pipe body 4 further includes a second protective pipe 10 wrapped on the first protective pipe 9. The second protective pipe 10 is formed by winding rubber cloth on the first protective pipe 9, and the product is put into the machine for vulcanization in the later period, so that the second protective pipe 10 is tightly adhered and wrapped on the first protective pipe 9. The surface of the second protective pipe 10 is provided with a plurality of air holes 11, and the plurality of air holes 11 are communicated with the outside and the first protective pipe 9. The second protective pipe 10 can prevent the metal wire of the first protective pipe 9 from being broken by friction with foreign matters. The opening of the air hole 11 can help the first protective pipe to conduct heat.

[0034] Two connectors 2 respectively extend into two ends of the PVC threaded pipe 8 and are respectively screwed on the PVC threaded pipe 8, and the two connectors 2 respectively abut against the end faces of the two ends of the first pipe body 3. The threaded connection of the connector 2 and the PVC threaded pipe 8 can improve the connection sealing of the connector 2 and the hose body 1.

[0035] The two connectors 2 are integrally formed with the connecting pipes 5 on one end of the second pipe body 4, the connecting pipes 5 extend into the first pipe body 3, and the outer wall of the connecting pipe 5 is in abutment with the inner wall of the first pipe body 3. The outer wall of the connecting pipe 5 is provided with a ring groove 53, and the ring groove 53 is provided with a sealing ring 6, and the sealing ring 6 is pressed against the inner wall of the first pipe body 3 by the connecting pipe 5. The setting of the connecting pipe 5 further improves the anti-leakage performance of the product.

[0036] One end of the connecting pipe 5 has a larger diameter than the other end, the larger end of the connecting pipe 5 is the large end 51, the smaller end of the connecting pipe 5 is the small end 52, the large end 51 is connected to the connecting pipe 5, the diameter of the large end 51 is larger than the diameter of the first pipe body 3, the diameter of the small end 52 is smaller than the diameter of the first pipe body 3, and the large end 51 is in interference fit with the first pipe body 3.

[0037] The two connectors 2 are integrally formed with the connecting pipes 5, the metal pipes 7 are sleeved on the second protective pipes 10, and the metal pipes 7 press the first pipe body 3 and the second pipe body 4 together with the connecting pipes 5. The metal pipes 7 press the first pipe body 3 and the second pipe body 4 together with the connecting pipes 5, which can further improve the connection sealing between the connecting pipes 5 and the first pipe body 3, thereby further preventing liquid from leaking from the connection between the connectors 2 and the hose body 1.

[0038] Of course, the above is only a typical example of the present application, in addition to which, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A high-temperature resistant, high-sealing hose, comprising a hose body (1) and two connectors (2), characterized in that: The hose body (1) includes a first tube (3) and a second tube (4) wrapped around the first tube (3). Both ends of the second tube (4) extend out of the first tube (3). Both ends of the second tube (4) are provided with threads. The two connectors (2) are respectively threaded to the two ends of the second tube (4). One end of the two connectors (2) extending into the second tube (4) abuts against the end faces of the two ends of the first tube (3).

2. The high-temperature resistant, high-sealing flexible hose according to claim 1, characterized in that: The connector (2) has a connecting pipe (5) at one end that extends into the second pipe body (4). The connecting pipe (5) extends into the first pipe body (3), and the outer wall of the connecting pipe (5) is in contact with the inner wall of the first pipe body (3).

3. The high-temperature resistant, high-sealing flexible hose according to claim 2, characterized in that: The diameter of one end of the connecting pipe (5) is larger than the diameter of the other end. The end of the connecting pipe (5) with a larger diameter is called the large end (51), and the end of the connecting pipe (5) with a smaller diameter is called the small end (52). The large end (51) is connected to the connecting pipe (5). The diameter of the large end (51) is larger than the diameter of the first pipe body (3), and the diameter of the small end (52) is smaller than the diameter of the first pipe body (3). The large end (51) and the first pipe body (3) are interference fit.

4. The high-temperature resistant, high-sealing flexible hose according to claim 3, characterized in that: The outer wall of the connecting pipe (5) is provided with an annular groove (53), and a sealing ring (6) is provided in the annular groove (53). The sealing ring (6) is pressed against the inner wall of the first pipe body (3) by the connecting pipe (5).

5. The high-temperature resistant, high-sealing flexible hose according to claim 4, characterized in that: The connector (2) is provided with a metal tube (7), which is sleeved on the second tube body (4). The metal tube (7) and the connecting tube (5) press against the first tube body (3) and the second tube body (4).

6. The high-temperature resistant, high-sealing flexible hose according to claim 2, characterized in that: The first tube body (3) is a fluororubber hose, and the second tube body (4) includes a PVC threaded tube (8) wrapped around the first tube body (3) and a first protective tube (9) wrapped around the PVC threaded tube (8). The connector (2) is threadedly connected to the PVC threaded tube (8).

7. The high-temperature resistant, high-sealing flexible hose according to claim 6, characterized in that: The first protective tube (9) is woven from multiple metal wires.

8. The high-temperature resistant, high-sealing flexible hose according to claim 7, characterized in that: The second tube (4) also includes a second protective tube (10) wrapped around the first protective tube (9). The second protective tube (10) is formed by wrapping rubber cloth around the first protective tube (9). The surface of the second protective tube (10) is provided with a plurality of vent holes (11), which are connected to the outside world and the first protective tube (9).

Images