Corrugated hose

Abstract

The utility model discloses a corrugated hose which comprises a hose body and connectors arranged at the two ends of the hose body, a reinforcing rib is arranged on the outer side of the hose body, the reinforcing rib is of a spiral structure, the reinforcing rib forms a first reinforcing part at the two ends of the hose body in a heating and flattening mode, and the thickness of the first reinforcing part is larger than that of the hose body; the length of the joint is smaller than that of the first reinforcing part, so that a part extending out of the joint is formed when the first reinforcing part is connected with the joint, and the part serves as a joint for connecting the hose body and the joint and can bear certain deformation, and the situation that the joint and the hose body are fractured and the service life of the corrugated hose is finally shortened due to material fatigue caused by excessive bending at the joint is avoided; and the maintenance cost is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hose, especially to a corrugated hose. BACKGROUND

[0002] A hose is a flexible and elastic pipe, usually used to transport liquids, gases, particulate matter or powders. It is made of internal rubber, plastic or other elastic materials, and may be covered with braided fabric, metal wire or other reinforcing materials on the outside to increase strength and durability.

[0003] The hose can be bent, folded and stretched, suitable for use in limited or complex environments; the design of the reinforcing layer on the outside of the hose allows it to withstand certain pressure and external impact; the hose is usually equipped with quick connectors or flanges for easy connection and disassembly, and based on these advantages, the hose has a wide range of applications in many fields.

[0004] In the medical field, the hose is generally used for air flow transmission of respirators and anesthesia machines. When the medical staff needs to transmit gas, the hose is inserted into the air outlet of the respirator or anesthesia machine, and when the transmission of gas is completed, the hose is pulled out. Generally, the hose has a quick connector for plugging and unplugging, but in actual use, the user may not pay attention or may directly pull out the hose body part when busy, which may cause material fatigue at the connection between the quick connector and the hose body, eventually leading to the breakage of the quick connector and the hose body, resulting in a shortened service life of the hose. SUMMARY

[0005] The utility model discloses a corrugated hose to solve the problem of easy breakage between the quick connector and the hose body.

[0006] A corrugated hose adopts the following technical solutions:

[0007] A corrugated hose, characterized in that it comprises a hose body and connectors provided at both ends of the hose body:

[0008] The hose body is provided with a reinforcing rib, the reinforcing rib has a spiral structure, and the reinforcing ribs at both ends of the hose body are melted to form a first reinforcing part with the hose body.

[0009] The connector is fixedly connected with the first reinforcing part through secondary injection molding.

[0010] By adopting the above technical solutions, the first reinforcing part is used to connect the hose body and the connector. Since the first reinforcing part has a greater thickness compared to the hose body, it is not easy to bend and has a certain toughness, which can avoid excessive bending and material fatigue, and eventually prevent breakage.

[0011] Further, the first reinforcing part is provided with a second reinforcing part near one side of the reinforcing rib, and at least one groove is arranged between the first reinforcing part and the second reinforcing part.

[0012] Preferably, the pipe wall thickness is less than the groove bottom thickness

[0013] The first reinforcing part and the second reinforcing part are separated by a groove, which ensures the use of the joint in a narrow environment and has a certain buffering effect when the joint is impacted by external force.

[0014] Further, the joint has a first cavity and a second cavity arranged in sequence and coaxially in the joint, and a step is arranged at the connection position of the first cavity and the second cavity.

[0015] Further, the diameter of the second cavity is less than the diameter of the first cavity, and the difference between the diameters of the first cavity and the second cavity is less than the thickness of the first reinforcing part.

[0016] The first cavity is used for cooperating with the gas outlet pipe of the external gas source, and when the joint needs to be installed with the gas outlet pipe of the external gas source, since the difference between the diameters of the first cavity and the second cavity is less than the thickness of the first reinforcing part, the installation depth of the gas outlet pipe can be limited to avoid the inconvenience of pulling out due to over-deep installation; the second cavity is used for cooperating with the first reinforcing part to fix and ensure the reliability of the connection between the joint and the first reinforcing part.

[0017] Further, the length of the joint is not greater than the length of the first reinforcing part.

[0018] The length of the joint is not greater than the length of the first reinforcing part, which can ensure that the first reinforcing part is exposed from the joint and serves as a part that bears deformation and connects the pipe body and the joint.

[0019] Further, the joint is provided with a cylindrical gripping part, a finger gripping part cooperating with the fingers, and a tubular interface in sequence outside the joint.

[0020] During the pulling-out process, the joint conforms to ergonomics, the gripping part is fitted with the palm curve, and the finger gripping part is fitted with the finger curve, which can make it convenient for medical staff to exert force and provide sufficient friction to pull out the joint.

[0021] Further, a boss is arranged between the finger gripping part and the tubular interface.

[0022] When the friction between the joint and the gas outlet pipe is too large, a medical staff can use the method of pressing the nail against the boss to exert force on the joint to pull it out.

[0023] Further, the tubular interface has an inner chamfer.

[0024] The inner chamfer can limit the position of the gas outlet pipe of the external gas source and protect the gas outlet during the installation of the joint.

[0025] Further, the angle between the reinforcing rib and the extension direction of the pipe body is 50°-80°.

[0026] The reinforcing rib is arranged in this way to ensure the structural strength of the outer surface of the pipe body and effectively protect the pipe body under the premise of ensuring the activity of the pipe body.

[0027] Further, the top and bottom of the joint have outer chamfers.

[0028] The outer chamfer can avoid scratching medical staff during use.

[0029] In summary, the present application at least contains one of the following beneficial effects:

[0030] 1. The length of the joint is less than the first reinforcing part, and the thickness of the first reinforcing part is greater than the thickness of the pipe body, so that the connecting part between the pipe body and the joint can withstand a certain deformation, avoiding excessive bending to cause material fatigue and eventually leading to the rupture of the joint and the pipe body, thereby shortening the service life of the corrugated hose and increasing the maintenance cost;

[0031] 2. The second reinforcing rib is spaced apart from the first reinforcing part by at least one reinforcing rib gap, so that a certain angle can be formed between the first reinforcing rib and the second reinforcing rib, which not only ensures that the joint can be used normally in a narrow environment, but also ensures that the joint and the hose have a certain buffering effect when part of them is subjected to external force impact;

[0032] 3. The first reinforcing part and the second reinforcing part are both produced by heating and melting the reinforcing rib and then shaping it, since the reinforcing rib and the pipe body are made of the same material, the fusion is good, the thickness of the reinforcing part can be increased without delamination, and the production is convenient and efficient;

[0033] 4. The first cavity inside the joint cooperates with the external gas source, and the second cavity cooperates with the first reinforcing part of the pipe body, and the joint is connected with the first reinforcing part by injection molding, which ensures the sealing effect during gas transportation; at the same time, since the diameter difference between the first cavity and the second cavity is less than the thickness of the first reinforcing part, when the first cavity is connected with the gas outlet pipe of the external gas source, the installation depth of the gas outlet pipe can be limited, which is convenient for the installation and disassembly of the joint;

[0034] 5. The joint has a palm part that fits the palm curve, a finger part that fits the finger curve, and a boss between the finger part and the tubular interface, so that the joint conforms to the ergonomics of the human palm, and medical staff can easily exert force on the joint to achieve plugging and unplugging of the joint;

[0035] 6. The inner chamfer of the tubular joint can limit the gas outlet pipe of the external gas source and protect the gas outlet during installation of the joint. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is the whole structure schematic view of the utility model;

[0037] Figure 2 It is the cross section structure schematic view of pipe body end;

[0038] Figure 3 It is the cross section structure schematic view of pipe body end;

[0039] Figure 4 It is the cross section structure schematic view of pipe body end;

[0040] Brief description of drawings: 1, pipe body;10, reinforcing rib;11, first reinforcing part;12, second reinforcing part;13, groove;2, joint;21, master part;22, finger holding part;23, tubular interface;24, boss;3, first cavity;4, second cavity;5, inner chamfer;6, outer chamfer;7, step. Specific implementation

[0041] In order to make the technical scheme of the application more clear, the application is further described in detail below in combination with the drawings and specific embodiments. Embodiment 1

[0042] Reference Figure 1 A kind of corrugated hose, including pipe body 1, the joint 2 of sleeve set in the both ends of pipe body 1, pipe body 1 outer surface is wound with reinforcing rib 10.

[0043] In combination with Figure 1 And referring to Figure 2 , pipe body 1 both ends are equipped with first reinforcing part 11, the length of first reinforcing part 11 is greater than the length of joint 2 to ensure that first reinforcing part 11 has the part not in contact with joint 2.

[0044] Further referring to Figure 4 , joint 2 outside has master part 21, finger holding part 22 and tubular interface 23 in sequence, and boss 24 is arranged between tubular interface 23 and finger holding part 22;

[0045] In combination with Figure 2 And referring to Figure 4 , the inside of joint 2 has first cavity 3 and second cavity 4 in sequence, and step 7 is arranged at the junction of first cavity 3 and second cavity 4, the diameter difference of first cavity 3 and second cavity 4 is less than the thickness of the first reinforcing part 11, that is, the inner diameter of first reinforcing part 11 is less than the diameter of first cavity 3, and the diameter of first cavity 3 is less than the diameter of second cavity 4.

[0046] Again referring to Figure 1 、 2 , 4, the included angle between reinforcing rib 10 and the extension direction of pipe body 1 is 50 ° ~ 80 °, tubular interface 23 has inner chamfer 5, and the top and bottom of joint 2 have outer chamfer 6 respectively.

[0047] The production process of the corrugated hose is as follows: referring to Figure 1 , two discharge machines discharge respectively to form the pipe body 1 and the reinforcing rib 10 of the corrugated hose, when the corrugated hose reaches a certain length, the heating device flattens the reinforcing rib 10 on the part of the corrugated hose located in the heating device after reinforcing to increase the thickness of the pipe body 1 to form the first reinforcing part 11, and after repeating the above process twice, the corrugated hose is cut off.

[0048] After the corrugated hose cools down, the corrugated hose is put into the mold, and the first reinforcing part 11 is connected with the second cavity 4 of the connector 2 by means of secondary injection molding, and after cooling after injection molding, the corrugated hose is completed.

[0049] The use mode of the corrugated hose is as follows: referring to Figure 2 , when gas needs to be transmitted, pinch the finger grip part 22 of the connector 2 and place the palm grip part 21 in the palm, tighten the palm to make the connector 2 fully fit the palm, and then insert the tubular interface 23 of the connector 2 into the gas outlet pipe of the external gas source, because the inner diameter of the first reinforcing part 11 is smaller than the diameter of the first cavity 3, and the diameter of the first cavity 3 is smaller than the diameter of the second cavity 4, the depth of the gas outlet pipe inserted into the connector 2 is limited, which avoids the inconvenience of inserting and pulling caused by the excessive depth of the gas outlet pipe inserted into the connector 2; after the transmission of gas is completed, pinch the finger grip part 22 of the connector 2 and place the palm grip part 21 in the palm, tighten the palm to make the connector 2 fully fit the palm, and then pull out the tubular interface 23 of the connector 2 from the gas outlet of the external gas source, if it is difficult to pull out at this time, the connector 2 can be separated from the gas outlet pipe by applying force against the boss 24. Example 2

[0050] Now a new reinforcing part design is provided on the basis of example 1.

[0051] A corrugated hose further comprises a second reinforcing part 12, in combination Figure 1 and referring to Figure 3 , the second reinforcing part 12 is arranged between the first reinforcing part 11 and the pipe body 1, and at least one reinforcing rib gap 13 is arranged between the first reinforcing part 11.

[0052] In the production process, the heating device heats and flattens the reinforcing rib 10 on the surface of the pipe body 1 in the order of the first reinforcing part 11, the second reinforcing part 12, the second reinforcing part 12 and the first reinforcing part 11, and after the above process is completed, the corrugated hose is cut off.

[0053] The remaining modes are the same as example 1.

[0054] It will be appreciated by those skilled in the art that the above-described embodiments of the application and the examples shown in the drawings are to be taken as examples only, and do not limit the application. The objects of the application have been fully and effectively achieved. The functional and structural principles of the application have been demonstrated and described in the embodiments, and the embodiments of the application can be modified and changed in any way without departing from the principles.

Claims

1. A corrugated hose, characterized in that, The pipe body and the joint arranged at both ends of the pipe body are provided with a reinforcing rib, and the reinforcing rib has a spiral structure. The reinforcing rib at both ends of the pipe body is fused to form a first reinforcing part with the pipe body. The joint is fixedly connected with the first reinforcing part through secondary injection molding.

2. A corrugated hose as defined in claim 1, wherein The first reinforcing part is further provided with a second reinforcing part on one side close to the reinforcing rib.

3. A corrugated hose as defined in claim 1, wherein The joint has a first cavity and a second cavity arranged in sequence and coaxially.

4. A corrugated hose as defined in claim 3, wherein The first cavity and the second cavity are connected and provided with a step.

5. A corrugated hose as defined in claim 1, wherein The diameter of the second cavity is smaller than that of the first cavity, and the difference between the diameters of the first cavity and the second cavity is smaller than the thickness of the first reinforcing part.

6. A corrugated hose as defined in claim 1, wherein The length of the joint is not greater than the length of the first reinforcing part.

7. A corrugated hose as defined in claim 6, wherein The outside of the joint is provided with a cylindrical holding part, a finger holding part matched with the fingers and a tubular interface in sequence.

8. A corrugated hose as defined in claim 6, wherein The finger holding part and the tubular interface are provided with a boss.

9. A corrugated hose as defined in claim 1, wherein The interface has an inner chamfer.

10. A corrugated hose as defined in claim 1, wherein The angle between the reinforcing rib and the extension direction of the pipe body is 50°-80°. The top and bottom of the joint are respectively provided with an outer chamfer.

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