Wire pipe anti-pulling device

Abstract

The utility model provides a line pipe anti-pulling device, which comprises a rear external connecting sleeve, a line pipe protection hose, a hose crimping circular ring and a hose crimping outer sleeve, one end of the rear external connecting sleeve is provided with a hose sleeving cylinder, and the outer side of the rear external connecting sleeve is provided with an external thread connecting part; the line pipe protection hose is connected to the hose sleeving cylinder in a sleeving mode, the hose pressing connection circular ring is arranged outside the line pipe protection hose in a sleeving mode, and the hose pressing connection circular ring is connected to the hose sleeving cylinder in a pressing mode through the hose pressing connection circular ring; the crimping outer sleeve is assembled on the rear external connecting sleeve, the crimping outer sleeve fixes the hose crimping circular ring between the rear external connecting sleeve and the hose crimping outer sleeve, the hose crimping circular ring is used for fixing the end part of the line pipe protection hose, and the anti-pulling function can be realized through a simple structure while the operation freedom degree is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a connecting and matching structure between devices, and in particular to a wire tube anti-pulling device. Background Art

[0002] In industrial or medical fields, there are often cases where electrical signals or other substances need to be transmitted between different devices, such as transmitting electrical signals from one device to another through cables, or transmitting liquids from one device to another through pipes. In this case, cables and pipes mainly play a transmission role. As long as the connection between the two devices is firm, it can meet common application needs.

[0003] Take the laser dental treatment device as an example: the laser dental treatment device uses a high-energy laser beam to treat oral tissues and uses lasers for cutting, grinding, sterilization, disinfection and other operations. It has the advantages of fast cutting, less damage and high efficiency. Oral surgery performed with the laser dental treatment device, combined with timely cooling with coolant, can reduce intraoperative pain and improve postoperative recovery. In order to ensure the normal operation of the laser dental treatment device, the laser dental treatment device needs to be installed with cables and pipes. The cables are used to provide electrical signals and the pipes are used to provide coolant. Considering that the position and angle need to be adjusted according to the actual situation of the patient's mouth during operation, and considering that the flexibility of the equipment needs to be taken into account during use, the cables and pipes are mostly flexible parts to allow the laser dental treatment device to move freely.

[0004] The potential problem brought by flexible parts is that they cannot provide sufficient strength support. How to achieve anti-pull function based on a simple and lightweight structure is a technical problem that the industry urgently needs to solve. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that, in response to the above-mentioned defects of the prior art, a wire pipe anti-pull device is provided, which uses a hose crimping ring between the rear external connecting sleeve and the hose crimping outer sleeve to fix the end of the wire pipe protection hose, while ensuring the operational freedom, the anti-pull function can be achieved through a simple structure.

[0006] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0007] A wire tube anti-pull device, comprising:

[0008] a rear external connection sleeve, wherein one end of the rear external connection sleeve is provided with a hose sleeve, the hose sleeve and the rear external connection sleeve are coaxially arranged, and an external threaded connection portion is provided on the outer side of the rear external connection sleeve;

[0009] a wire conduit protection hose, the wire conduit protection hose being sleeved on the hose sleeve barrel, the wire conduit protection hose containing cables and water pipes, the wire conduit protection hose being longer than the cables and water pipes, the cables and water pipes in the wire conduit protection hose passing through the hose sleeve barrel;

[0010] A hose crimping ring, which is sleeved on the outside of the wire tube protection hose and is crimped onto the hose sleeve by the hose crimping ring;

[0011] A hose crimping outer sleeve is provided with an internal threaded connection portion, and the crimping outer sleeve is threadedly matched with the external threaded connection portion on the rear external connection sleeve through the internal threaded connection portion thereon. The crimping outer sleeve fixes the hose crimping ring between the rear external connection sleeve and the hose crimping outer sleeve.

[0012] Compared with the existing technology, the beneficial effects of this technical solution are: the wire pipe protection hose is sleeved on the hose sleeve tube, and the hose crimping ring is sleeved on the outside of the wire pipe protection hose. After the hose crimping outer sleeve is assembled on the rear external connecting sleeve, the position of the hose crimping ring can be limited, so that the end of the wire pipe protection hose is fixed by the hose crimping ring, while ensuring the freedom of operation, the anti-pull function can be achieved through a simple structure.

[0013] Furthermore, the hose sleeve includes a first clamping cylindrical sleeve, a first clamping conical sleeve, a second clamping cylindrical sleeve and a second clamping conical sleeve, and the first clamping cylindrical sleeve, the first clamping conical sleeve, the second clamping cylindrical sleeve and the second clamping conical sleeve are coaxial with each other;

[0014] The first clamping cylindrical sleeve part is located at an end away from the rear external connecting sleeve, and the second clamping conical sleeve part is located at an end close to the rear external connecting sleeve. The first clamping cylindrical sleeve part, the first clamping conical sleeve part, the second clamping cylindrical sleeve part and the second clamping conical sleeve part are connected end to end in sequence, and a hose clamping step is formed between the second clamping cylindrical sleeve part and the second clamping conical sleeve part.

[0015] The beneficial effect of adopting the above scheme is: the hose sleeve is decomposed into a first clamping cylindrical sleeve part, a first clamping conical sleeve part, a second clamping cylindrical sleeve part and a second clamping conical sleeve part, and a hose clamping step is formed between the second clamping cylindrical sleeve part and the second clamping conical sleeve part, which can achieve better positioning function in conjunction with the hose crimping ring.

[0016] Furthermore, the outer diameter of the first clamping cylindrical sleeve is smaller than the outer diameter of the second clamping cylindrical sleeve, and a guiding inclined portion is formed between the first clamping cylindrical sleeve and the second clamping cylindrical sleeve through the outer side wall of the first clamping frustum sleeve.

[0017] The beneficial effect of adopting the above solution is that the guiding inclined portion is formed by the outer side wall of the first clamping frustum sleeve member, which facilitates the connection of the wire conduit protection hose to the hose sleeve tube during the assembly process.

[0018] Furthermore, the first clamping cylindrical sleeve component, the first clamping conical sleeve component, the second clamping cylindrical sleeve component and the second clamping conical sleeve component are integrally formed and arranged on the rear external connecting sleeve.

[0019] The beneficial effects of adopting the above solution are: the one-piece structural design makes the structure of the device simpler, which is beneficial to improving component precision and reducing manufacturing costs.

[0020] Furthermore, the hose crimping ring includes a crimping ring body and an annular crimping portion, the crimping ring body is a cylindrical structure, the annular crimping portion is a circular ring structure, and the annular crimping portion is fixedly arranged on the end of the crimping ring body through an outer ring;

[0021] The hose crimping ring is crimped onto the hose sleeve through the inner ring of the annular crimping portion.

[0022] The beneficial effect of adopting the above solution is: a hose crimping ring is formed by the crimping ring body and the annular crimping portion, and the crimping function is achieved by the inner ring of the annular crimping portion, which can improve the crimping effect.

[0023] Furthermore, the crimping ring body is provided with an outer side surface of the crimping ring, and the outer side surface of the crimping ring is a truncated cone-shaped outer side surface structure. The outer side surface of the crimping ring is formed circumferentially on the crimping ring body, and the outer side surface of the crimping ring is provided on the outer side of the crimping ring body close to one end of the crimping outer sleeve.

[0024] The beneficial effect of adopting the above-mentioned scheme is that in the process of assembling the hose crimping outer sleeve on the rear external connecting sleeve, the hose crimping outer sleeve contacts the outer side surface of the crimping ring of the truncated cone-shaped outer side surface structure. The truncated cone-shaped outer side surface structure can increase the contact area between the hose crimping outer sleeve and the truncated cone-shaped outer side surface structure, so that the force on the crimping ring body is more uniform and the coordination between the structures is more stable.

[0025] Furthermore, the crimping ring body is provided with an inner side surface of the crimping ring, and the inner side surface of the crimping ring is a truncated cone-shaped inner side surface structure, and the inner side surface of the crimping ring is provided on the inner side of the crimping ring body close to one end of the rear external connecting sleeve.

[0026] The beneficial effect of adopting the above scheme is that an inner side surface of the crimping ring is formed on the inner side of the crimping ring body, and the crimping ring body contacts the wire pipe protection hose through the inner side surface of the crimping ring, which can reduce the pressure on the local area of ​​the wire pipe protection hose and prevent the wire pipe protection hose from being damaged.

[0027] Furthermore, the wire conduit protection hose is provided with an anti-slip stripe portion, and the hose crimping ring is crimped onto the anti-slip stripe portion on the wire conduit protection hose.

[0028] The beneficial effect of adopting the above solution is that the provision of the anti-slip stripes can effectively improve the firmness of the wire conduit protection hose and prevent the wire conduit protection hose from falling off.

[0029] Furthermore, the wire conduit protection hose is a silicone hose.

[0030] The beneficial effect of adopting the above solution is: using silicone hose as the wire pipe protection hose, taking advantage of the flexibility of silicone to prevent movement restriction between devices and effectively ensure operational freedom.

[0031] Furthermore, the rear external connection sleeve and the hose crimping outer sleeve are integrally formed aluminum alloy structures, and the hose crimping ring is an integrally formed stainless steel structure.

[0032] The beneficial effects of adopting the above scheme are: using an aluminum alloy structure as the rear external connecting sleeve and the hose crimping outer sleeve can effectively reduce the weight of the device and make it easier to operate; using a stainless steel structure as the hose crimping ring can improve the strength of the hose crimping ring, a key component, and prevent the hose crimping ring from failing due to deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an overall schematic diagram of the wire tube anti-pull device of the present invention.

[0034] Figure 2 It is an exploded schematic diagram of the wire tube anti-pull device of the present invention.

[0035] Figure 3 It is a schematic diagram of the hose sleeve in the wire pipe anti-pull device of the present invention.

[0036] Figure 4 It is a cross-sectional schematic diagram of the hose crimping ring in the wire tube anti-pull device of the present invention.

[0037] In the figure, the components represented by each reference numeral are as follows:

[0038] Rear external connection sleeve 1, wire tube protection hose 2, hose crimping ring 3, hose crimping outer sleeve 4;

[0039] Hose sleeve 101, first clamping cylindrical sleeve 102, first clamping frustum sleeve 103, second clamping cylindrical sleeve 104, second clamping frustum sleeve 105, hose clamping step 106;

[0040] The crimping ring body 301 , the annular crimping portion 302 , the crimping ring outer surface 303 , and the crimping ring inner surface 304 . DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clear and distinct, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0042] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," and "right" and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. When a component is referred to as being "fixed to" or "set on" another element, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In industrial or medical fields, there are often cases where electrical signals or other substances need to be transmitted between different devices, such as transmitting electrical signals from one device to another through cables, or transmitting liquids from one device to another through pipes. In this case, cables and pipes mainly play a transmission role. As long as the connection between the two devices is firm, it can meet common application needs.

[0045] Take the laser dental therapy device as an example: the laser dental therapy device uses a high-energy laser beam to treat oral tissues and uses lasers for cutting, grinding, sterilization, disinfection and other operations. It has the advantages of fast cutting, less damage and high efficiency. Oral surgery performed with the laser dental therapy device, combined with timely cooling with coolant, can reduce intraoperative pain and improve postoperative recovery. In order to ensure the normal operation of the laser dental therapy device, the laser dental therapy device needs to be installed with cables and pipes. The cables are used to provide electrical signals and the pipes are used to provide coolant. The electrical signals and coolant involved here need to be provided by external equipment. Considering that the position and angle need to be adjusted according to the actual situation of the patient's mouth during operation, and considering that the flexibility of the equipment needs to be taken into account during use, the cables and pipes are mostly flexible parts to allow the laser dental therapy device to move freely.

[0046] It is understandable that the potential problem brought by flexible parts is that they cannot provide sufficient strength support. When subjected to external tension, cables and pipes may fall off. How to achieve anti-pull function based on a simple and lightweight structure is a technical problem that the industry urgently needs to solve.

[0047] like Figure 1 and Figure 2 As shown, in order to solve the above problems, the utility model provides a wire pipe anti-pull device, including a rear external connecting sleeve 1, a wire pipe protection hose 2, a hose crimping ring 3 and a hose crimping outer sleeve 4.

[0048] A hose sleeve 101 is provided at one end of the rear external connection sleeve 1 . The hose sleeve 101 and the rear external connection sleeve 1 are coaxially arranged. An external threaded connection portion is provided on the outer side of the rear external connection sleeve 1 .

[0049] The wire conduit protection hose 2 is sleeved on the hose sleeve 101. Cables and water pipes are arranged inside the wire conduit protection hose 2. The length of the wire conduit protection hose 2 is greater than the length of the cables and the length of the water pipe. The cables and water pipes inside the wire conduit protection hose 2 pass through the hose sleeve 101.

[0050] The hose crimping ring 3 is sleeved on the outside of the wire tube protection hose 2 , and the hose crimping ring 3 is crimped onto the hose sleeve 101 .

[0051] The crimping outer sleeve is provided with an internal thread connection portion, and the crimping outer sleeve is threadedly matched with the external thread connection portion on the rear external connection sleeve 1 through the internal thread connection portion thereon. The crimping outer sleeve fixes the hose crimping ring 3 between the rear external connection sleeve 1 and the hose crimping outer sleeve 4.

[0052] The rear external connecting sleeve 1, the wire pipe protection hose 2, the hose crimping ring 3 and the hose crimping outer sleeve 4 constitute the wire pipe anti-pull device in this technical solution. During installation, the deformable characteristics of the wire pipe protection hose 2 are utilized to first put the wire pipe protection hose 2 into the hose sleeve tube 101 on the rear external connecting sleeve 1, and then put the hose crimping ring 3 into the outer sleeve of the wire pipe protection hose 2. On this basis, the hose crimping outer sleeve 4 is assembled on the rear external connecting sleeve 1 by utilizing the external threaded connection part and the internal threaded connection part. At this time, the hose crimping ring 3 crimps the wire pipe protection hose 2 onto the hose sleeve tube 101, and the rear external connecting sleeve 1 and the hose crimping outer sleeve 4 then confine the hose crimping ring 3 between the two, ensuring the crimping and fixing effect of the hose crimping ring 3 on the wire pipe protection hose 2.

[0053] Since the length of the wire conduit protection hose 2 is greater than the length of the cable and the water pipe, when the cable and the water pipe are subjected to external tension, the tension will act on the wire conduit protection hose 2. However, since the wire conduit protection hose 2 is fixed to the hose socket 101, the tension will not be transmitted to the cable and the water pipe.

[0054] Based on the above structure, the wire conduit protection hose 2 is sleeved on the hose sleeve tube 101, and the hose crimping ring 3 is sleeved on the outside of the wire conduit protection hose 2. After the hose crimping outer sleeve 4 is assembled on the rear external connecting sleeve 1, the position of the hose crimping ring 3 can be limited, so that the end of the wire conduit protection hose 2 is fixed by the hose crimping ring 3, while ensuring the freedom of operation, the anti-pull function can be achieved through a simple structure.

[0055] It should be noted that the complete structure also includes a front external connecting sleeve and a cavity outer sleeve. The front external connecting sleeve and the rear external connecting sleeve are respectively arranged at the two ends of the cavity outer sleeve. The front external connecting sleeve, the rear external connecting sleeve, and the cavity outer sleeve together constitute the outer shell of this device. The innovation of this technical solution lies in the anti-pull feature, so only the structure related to the anti-pull feature will be discussed in detail.

[0056] like Figure 3As shown, preferably, the hose sleeve 101 includes a first clamping cylindrical sleeve part 102, a first clamping conical sleeve part 103, a second clamping cylindrical sleeve part 104 and a second clamping conical sleeve part 105, and the first clamping cylindrical sleeve part 102, the first clamping conical sleeve part 103, the second clamping cylindrical sleeve part 104 and the second clamping conical sleeve part 105 are coaxial with each other. The first clamping cylindrical sleeve part 102 is located at an end away from the rear external connecting sleeve 1, and the second clamping conical sleeve part 105 is located at an end close to the rear external connecting sleeve 1. The first clamping cylindrical sleeve part 102, the first clamping conical sleeve part 103, the second clamping cylindrical sleeve part 104 and the second clamping conical sleeve part 105 are connected end to end in sequence, and a hose clamping step 106 is formed between the second clamping cylindrical sleeve part 104 and the second clamping conical sleeve part 105.

[0057] The function of the hose sleeve 101 is to sleeve the wire pipe protection hose 2 and cooperate with the hose crimping ring 3 to fix the wire pipe protection hose 2. Based on the above structure, the hose sleeve 101 is decomposed into a first clamping cylindrical sleeve part 102, a first clamping conical sleeve part 103, a second clamping cylindrical sleeve part 104 and a second clamping conical sleeve part 105. A hose clamping step 106 is formed between the second clamping cylindrical sleeve part 104 and the second clamping conical sleeve part 105. When the hose crimping ring 3 crimps the wire pipe protection hose 2 onto the hose clamping step 106, the hose clamping step 106 will cause the wire pipe protection hose 2 to deform, which will make the fixing effect of the wire pipe protection hose 2 better.

[0058] As mentioned above, one of the functions of the hose sleeve 101 is to sleeve the wire conduit protection hose 2. The outer diameter of the first clamping cylindrical sleeve 102 is smaller than that of the second clamping cylindrical sleeve 104. The outer wall of the first clamping conical sleeve 103 forms a guiding inclined portion between the first clamping cylindrical sleeve 102 and the second clamping cylindrical sleeve 104.

[0059] A guiding inclined portion is formed by the outer wall of the first clamping frustum sleeve member 103. During the process of inserting the wire conduit protection hose 2, the slope formed by the guiding inclined portion can be used to smoothly feed the wire conduit protection hose 2 into and sleeve it onto the hose sleeve tube 101, making it convenient to sleeve the wire conduit protection hose 2 onto the hose sleeve tube 101 during the assembly process.

[0060] Preferably, the first engaging cylindrical sleeve 102, the first engaging conical sleeve 103, the second engaging cylindrical sleeve 104, and the second engaging conical sleeve 105 are integrally formed and arranged on the rear external connecting sleeve 1. The integrally formed structural design simplifies the structure of the device, improves component precision, and reduces manufacturing costs.

[0061] like Figure 4 As shown, preferably, the hose crimping ring 3 includes a crimping ring body 301 and an annular crimping portion 302. The crimping ring body 301 is a cylindrical structure, and the annular crimping portion 302 is an annular structure. The annular crimping portion 302 is fixedly mounted on the end of the crimping ring body 301 via an outer ring. The hose crimping ring 3 is crimped onto the hose sleeve 101 via an inner ring of the annular crimping portion 302.

[0062] The wire pipe protection hose 2 is sleeved in the crimping ring body 301. Therefore, when the hose crimping ring 3 is tightened, part of the wire pipe protection hose 2 is directly crimped by the crimping ring body 301, and part of it is crimped by the annular crimping portion 302. The inner circle of the annular crimping portion 302 is smaller than the inner diameter of the crimping ring body 301. Therefore, the annular crimping portion 302 can cause greater deformation on the wire pipe protection hose 2.

[0063] Based on the above structure, the hose crimping ring 3 is formed by the crimping ring body 301 and the annular crimping portion 302 , and the crimping function is achieved by the inner ring of the annular crimping portion 302 , which can improve the crimping effect.

[0064] like Figure 4 As shown, preferably, a crimping ring outer surface 303 is provided on the crimping ring body 301, and the crimping ring outer surface 303 is a truncated cone-shaped outer surface structure. The crimping ring outer surface 303 is formed circumferentially on the crimping ring body 301, and the crimping ring outer surface 303 is provided on the outer side of the crimping ring body 301 close to one end of the crimping outer sleeve.

[0065] The hose crimping ring 3 is driven by the crimping outer sleeve to crimp and secure the conduit protection hose 2. During assembly of the hose crimping outer sleeve 4 onto the rear external connection sleeve 1, the hose crimping outer sleeve 4 contacts the outer surface 303 of the crimping ring, which has a frustum-shaped outer surface. This frustum-shaped outer surface increases the contact area between the hose crimping outer sleeve 4 and the frustum-shaped outer surface structure, ensuring more uniform force distribution on the crimping ring body 301 and a more stable fit between the structures.

[0066] like Figure 4As shown, the crimping ring body 301 is preferably provided with a crimping ring inner side surface 304 having a truncated cone-shaped inner side surface structure. The crimping ring inner side surface 304 is located on the inner side of the crimping ring body 301 near one end of the rear external connection sleeve 1. The crimping ring inner side surface 304 is formed on the inner side of the crimping ring body 301. The crimping ring body 301 contacts the wire conduit protective hose 2 via the crimping ring inner side surface 304, thereby reducing pressure on a localized area of ​​the wire conduit protective hose 2 and preventing damage to the wire conduit protective hose 2.

[0067] Preferably, the wire conduit protective hose 2 is provided with anti-slip stripes, and the hose crimping ring 3 is crimped onto the anti-slip stripes on the wire conduit protective hose 2. The provision of the anti-slip stripes can effectively improve the firmness of the wire conduit protective hose 2 and prevent the wire conduit protective hose 2 from falling off.

[0068] Specifically, the wire conduit protection hose 2 is a silicone hose. The silicone hose is used as the wire conduit protection hose 2. The flexibility of the silicone is utilized to prevent movement restrictions between devices, thereby effectively ensuring operational freedom.

[0069] Specifically, the rear external connection sleeve 1 and the hose crimping outer sleeve 4 are integrally formed from an aluminum alloy, while the hose crimping ring 3 is integrally formed from stainless steel. Using an aluminum alloy structure for the rear external connection sleeve 1 and the hose crimping outer sleeve 4 effectively reduces the weight of the device and makes it easier to operate. Using stainless steel for the hose crimping ring 3 enhances the strength of this critical component, preventing deformation and failure.

[0070] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A wire tube anti-pull device, characterized in that: include: a rear external connection sleeve, wherein one end of the rear external connection sleeve is provided with a hose sleeve, the hose sleeve and the rear external connection sleeve are coaxially arranged, and an external threaded connection portion is provided on the outer side of the rear external connection sleeve; a wire conduit protection hose, the wire conduit protection hose being sleeved on the hose sleeve barrel, the wire conduit protection hose containing cables and water pipes, the wire conduit protection hose being longer than the cables and water pipes, the cables and water pipes in the wire conduit protection hose passing through the hose sleeve barrel; A hose crimping ring, which is sleeved on the outside of the wire tube protection hose and is crimped onto the hose sleeve by the hose crimping ring; A hose crimping outer sleeve is provided with an internal threaded connection portion, and the crimping outer sleeve is threadedly matched with the external threaded connection portion on the rear external connection sleeve through the internal threaded connection portion thereon. The crimping outer sleeve fixes the hose crimping ring between the rear external connection sleeve and the hose crimping outer sleeve.

2. A wire tube anti-pull device according to claim 1, characterized in that: The hose sleeve comprises a first clamping cylindrical sleeve, a first clamping truncated cone sleeve, a second clamping cylindrical sleeve and a second clamping truncated cone sleeve, wherein the first clamping cylindrical sleeve, the first clamping truncated cone sleeve, the second clamping cylindrical sleeve and the second clamping truncated cone sleeve are coaxial with each other; The first clamping cylindrical sleeve part is located at an end away from the rear external connecting sleeve, and the second clamping conical sleeve part is located at an end close to the rear external connecting sleeve. The first clamping cylindrical sleeve part, the first clamping conical sleeve part, the second clamping cylindrical sleeve part and the second clamping conical sleeve part are connected end to end in sequence, and a hose clamping step is formed between the second clamping cylindrical sleeve part and the second clamping conical sleeve part.

3. The wire tube anti-pull device according to claim 2, characterized in that: The outer diameter of the first clamping cylindrical sleeve is smaller than the outer diameter of the second clamping cylindrical sleeve, and a guiding inclined portion is formed between the first clamping cylindrical sleeve and the second clamping cylindrical sleeve through the outer side wall of the first clamping frustum sleeve.

4. A wire tube anti-pull device according to claim 3, characterized in that: The first clamping cylindrical sleeve component, the first clamping frustum sleeve component, the second clamping cylindrical sleeve component and the second clamping frustum sleeve component are integrally formed and arranged on the rear external connecting sleeve.

5. The wire tube anti-pull device according to claim 1, characterized in that: The hose crimping ring includes a crimping ring body and an annular crimping portion, wherein the crimping ring body is a cylindrical structure, and the annular crimping portion is a circular ring structure, and the annular crimping portion is fixedly arranged at the end of the crimping ring body through an outer ring; The hose crimping ring is crimped onto the hose sleeve through the inner ring of the annular crimping portion.

6. The wire tube anti-pull device according to claim 5, characterized in that: The crimping ring body is provided with an outer side surface of the crimping ring, and the outer side surface of the crimping ring is a truncated cone-shaped outer side surface structure. The outer side surface of the crimping ring is formed on the crimping ring body along the circumferential direction, and the outer side surface of the crimping ring is provided on the outer side of the crimping ring body close to one end of the crimping outer sleeve.

7. The wire tube anti-pull device according to claim 5, characterized in that: The crimping ring body is provided with an inner side surface of the crimping ring, and the inner side surface of the crimping ring is a truncated cone-shaped inner side surface structure. The inner side surface of the crimping ring is provided on the inner side of the crimping ring body close to one end of the rear external connecting sleeve.

8. The wire tube anti-pull device according to claim 1, characterized in that: The wire tube protection hose is provided with an anti-slip stripe portion, and the hose crimping ring is crimped onto the anti-slip stripe portion on the wire tube protection hose.

9. A wire tube anti-pull device according to any one of claims 1 to 8, characterized in that: The wire pipe protection hose is a silicone hose.

10. A wire tube anti-pull device according to any one of claims 1 to 8, characterized in that: The rear external connection sleeve and the hose crimping outer sleeve are integrally formed aluminum alloy structures, and the hose crimping ring is an integrally formed stainless steel structure.

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