Wire protecting sleeve of power supply product

Abstract

The utility model provides a wire sheath of a power supply product, which comprises a wire pipe, a sealing wall arranged on the inner side of the wire pipe, a first flange arranged on the outer side of the wire pipe, a second flange and a guide wall arranged on the inner side of the wire pipe, the sealing wall on the inner side of the wire pipe is used for realizing interference fit between a cable and the sealing wall, and the whole structure is in a shape like a Chinese character'bei '. A groove is formed in an external hollow area of the wire pipe between the second flange and the first flange and is used for clamping the shell; the diameter of the second flange is larger than that of the first flange, so that the first flange can smoothly pass through the shell opening. Compared with the prior art, the wire protecting sleeve of the power supply product has the advantages of being good in waterproof effect and convenient to assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to the wire protection sleeve of power product especially relates to a waterproof power product wire protection sleeve structure. BACKGROUND

[0002] Part power supply may be placed in outdoor use, will be subjected to rain, dew invasion and influence inside, for this, when developing, the shell for accommodating electronic device will be designed according to this demand, generally for the convenience of connection, input and output will set up power cord.Power cord needs to pass through the shell, connects the electronic device inside the shell and shell outside, to ensure that the power cord is not scratched by the shell and ensure the sealing of the shell threading place, then need to increase transition device i.e.wire protection sleeve between cable and shell.

[0003] Figure 1 Figure 2 Figure 3 The existing wire protection sleeve scheme. Figure 1 If the wire protection sleeve inner diameter is larger than the cable diameter, the sealing waterproof requirement cannot be met, so waterproof glue needs to be filled between the power cord and the sleeve ring.The use of waterproof glue needs cost, which must be calculated in the cost, and the filling of waterproof glue needs manpower, increases the manufacturing steps, and the probability of human error; Figure 2 Figure 3 If the wire protection sleeve inner diameter is smaller than the cable diameter, although the sealing effect after equipment can be guaranteed, the wire protection sleeve is not guided during threading, threading is difficult, and the cable and the wire protection sleeve are in large-area contact, so there is large friction during the whole threading process, and the flange size of the wire protection sleeve is small, so that the wire protection sleeve is detached from the shell during threading.

[0004] Therefore, the utility model provides a novel waterproof power wire protection sleeve structure. Utility model content

[0005] The utility model aims at overcoming the risk that the wire protection sleeve is difficult to thread and is easily detached from the shell in the above-mentioned prior art.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] ​​​A wire protection sleeve of a power supply product, comprising a wire tube, a sealing wall arranged inside the wire tube and a first flange arranged outside the wire tube, the sealing wall inside the wire tube is used to realize interference fit of the cable and the sealing wall, further comprising a second flange and a guide wall arranged inside the wire tube, the overall structure is in the shape of a "North" character, a groove is formed between the second flange and the first flange, and the groove is used for clamping the shell; the diameter of the second flange is greater than that of the first flange, so as to ensure that the first flange can smoothly pass through the opening of the shell; the inside of the wire tube is in a stepped structure, comprising two inner walls, i.e. the sealing wall and the guide wall arranged at the rear of the sealing wall, and the guide wall is used to realize gap fit of the cable and the inner wall of the wire tube.

[0008] Preferably, the length of the guide wall inside the wire tube is greater than the length of the sealing wall.

[0009] Preferably, the sealing wall inside the wire tube is arranged at the front end of the wire protection sleeve, and the thickness of the sealing wall is smaller than that of the first flange.

[0010] Preferably, the end of the guide wall inside the wire tube is provided with an arc-shaped guide structure, and the end position comprises the rear end and / or the front end of the guide wall.

[0011] Preferably, the outer shape of the first flange and the second flange is circular or square.

[0012] Preferably, the side wall of the groove between the first flange and the second flange is a smooth plane.

[0013] Preferably, the length of the sealing wall inside the wire tube is greater than 0.6 mm.

[0014] Preferably, the ratio of the length of the guide wall inside the wire tube to the length of the sealing wall is greater than 4:1.

[0015] The wire protection sleeve of the power supply product has the advantages that: the wire protection sleeve can be smoothly loaded into the shell through the guide flange, the wire protection sleeve can be prevented from being forced out of the shell during the threading process through the stop flange, the sealing area is used to ensure the sealing property, and the transition area and the second and third guide parts are used to ensure that the cable can be easily threaded out. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of a case one of the existing wire protection sleeve;

[0017] Figure 2 It is a schematic view of a case two of the existing wire protection sleeve;

[0018] Figure 3 It is a schematic view of the existing wire protection sleeve forced out during the threading process;

[0019] Figure 4 It is a sectional perspective view of the wire protection sleeve of the utility model;

[0020] Figure 5 is a sectional view of the wire protection sleeve of the utility model;

[0021] Figure 6 is an assembly effect sectional view of the wire protection sleeve of the utility model.

[0022] Among them, the main mark symbol in the above-mentioned drawing is explained as follows:

[0023] 1 wire protection sleeve

[0024] 2 shell wall plate

[0025] 3 cable

[0026] 4 sealing glue

[0027] 11 second flange (stopping flange)

[0028] 12 wire tube

[0029] 121 groove

[0030] 13 first flange (guide flange)

[0031] 14 third guide part

[0032] 15 transition area (guide wall)

[0033] 16 second guide part

[0034] 17 sealing area (sealing wall)

[0035] 131 first guide part DETAILED DESCRIPTION

[0036] The utility model / invention and its beneficial effects will be further explained in detail in combination with specific implementation manners and the drawing of the specification, but the specific implementation manner of the utility model / invention is not limited to this.

[0037] Please refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 is a sectional view of the wire protection sleeve of the utility model; Figure 5 is a sectional view of the wire protection sleeve of the utility model; Figure 6The utility model discloses a wire protection sleeve's assembly effect profile schematic diagram. A kind of wire protection sleeve of power supply product, including line pipe 12, the sealing wall 17 of line pipe inside and the first flange 13 of line pipe outside, the sealing wall 17 of line pipe inside is used to realize the interference fit of cable 3 and sealing wall 17, still include second flange 11 and the guide wall 15 of line pipe inside, make whole structure show " north " word type, the recess 121 of the external empty area between second flange 11 and the first flange 13 of line pipe forms, for clamping position shell;The diameter of second flange 11 is greater than the diameter of the first flange 13, to guarantee that the first flange 13 can smoothly cross shell opening;Line pipe inside is ladder structure, including two sections of inner wall, sealing wall 17 and guide wall 15 of the rear section of sealing wall are respectively, and guide wall 15 is used to realize the clearance fit of cable and line pipe inner wall. Preferably, the length of the guide wall 15 of line pipe inside is greater than the length of sealing wall 15. The sealing wall 17 of line pipe inside is arranged at the most front end of wire protection sleeve, and the thickness is thinner than the first flange 13. The end of the guide wall 15 of line pipe inside is equipped with arc-shaped guide structure, and the end position includes the rear end and / or front end of guide wall, such as the third guide part 14 of rear end, the second guide part 16 of front end. The shape of the first flange 13 and second flange 11 is circular or square. The side wall of the recess 121 between the first flange 13 and the second flange 11 is smooth plane. The length of the sealing wall 17 of line pipe inside is greater than 0.6mm. The ratio of the length of the guide wall 15 of line pipe inside and the length of sealing wall 17 is greater than 4:1.

[0038] Specifically, the wire protection sleeve 1 is provided with a guide flange 13 and a stop flange 11 outside, the diameter of the stop flange 11 is greater than that of the guide flange 13, a groove 12 is formed between the stop flange 11 and the guide flange 13, which is used for clamping the shell wall plate 2, and the guide flange 13 is provided with a first guide part 131 on one side; a transition area 15 and a sealing area 17 are arranged inside the wire protection sleeve, the transition area 15 and the sealing area 17 are provided with a second guide part 16; and the stop flange end surface 111 and the transition area 15 are provided with a third guide part 14.

[0039] The diameter of the guide flange 13 is slightly greater than that of the shell opening, the diameter of the stop flange 11 is greater than that of the guide flange 13, a groove 12 is formed between the stop flange 11 and the guide flange 13, and the guide flange 13 is provided with a first guide part 131 formed by chamfering, so that the guide flange 13 of the wire protection sleeve can easily pass through the shell opening, and the diameter of the stop flange 11 is relatively large, which can prevent the wire protection sleeve 1 from being pulled out due to excessive force, so that the shell wall plate 2 is clamped in the groove 12, the groove 12 is in interference fit with the shell wall plate 2, and the sealing between the shell and the wire protection sleeve 1 is ensured.

[0040] Preferably, the inside of the wire sleeve is provided with a transition area 15 and a sealing area 17, the cable 3 is gap-fitted with the transition area 15 to avoid excessive contact area, and the cable 3 is interference-fitted with the sealing area 17 to ensure the sealing between the wire sleeve 1 and the cable 3, and the transition area 15 and the sealing area 17 are provided with a second guide part 16 to ensure that the cable 3 can smoothly enter the sealing area 17 from the transition area 15.

[0041] Preferably, to facilitate the cable 3 to pass into the wire sleeve 1, the wire sleeve stop flange end surface 111 is provided with a third guide part 14, and the cable 3 can pass into the wire sleeve 1 without precise alignment.

[0042] The utility model provides a waterproof power wire sleeve structure, the wire sleeve is provided with first flange (also can be called guide flange) 13 and second flange (also can be called stop flange) 11 outside. The guide flange is smaller in diameter, and has a first guide part with a round chamfer, which can make the wire sleeve easier to assemble to the shell. The stop flange is larger in diameter, which can effectively prevent the wire sleeve from being forced out of the shell during threading. In addition, the inside of the wire sleeve is matched with the cable in two sections, of which the sealing area is interference-fitted with the cable to play a sealing and waterproof role, and the transition area is gap-fitted with the cable to prevent the path of the sealing area from being too long and the assembly resistance from being too large. The transition area and the sealing area are provided with a second guide part, and the end surface of the wire sleeve and the transition area are provided with a third guide part. The second and third guide parts can make the cable pass through the wire sleeve smoothly. The utility model has the advantages of good waterproof effect and convenient assembly.

[0043] The above examples are only used to help understand the method and core idea of the utility model, and for ordinary skilled persons in the technical field, other equivalent application schemes and several improvements and modifications of the utility model that can be naturally thought of through the above description and examples without departing from the principle of the utility model all fall within the protection scope of the claims of the utility model.

Claims

1. A cable sheath for a power supply product, comprising a conduit, a sealing wall disposed on the inner side of the conduit, and a first flange disposed on the outer side of the conduit, wherein the sealing wall on the inner side of the conduit is used to achieve an interference fit between the cable and the sealing wall, characterized in that: It also includes a second flange and a guiding wall disposed inside the wire tube, making the overall structure in a shape similar to the Chinese character "North". The outer empty area of the wire tube between the second flange and the first flange forms a groove for clamping the housing; the diameter of the second flange is larger than that of the first flange to ensure that the first flange can smoothly pass through the opening of the housing. The inner side of the wire tube is a stepped structure, including two sections of inner walls, namely a sealing wall and a guiding wall disposed at the rear section of the sealing wall. The guiding wall is used to achieve the clearance fit between the cable and the inner wall of the wire tube.

2. The cable sheath of the power supply product according to claim 1, characterized in that: The length of the guiding wall inside the wire tube is greater than the length of the sealing wall.

3. The cable sheath for the power supply product according to claim 1, characterized in that: The sealing wall inside the wire tube is arranged at the foremost end of the wire protection sleeve and has a thickness thinner than that of the first flange.

4. The cable sheath of the power supply product according to claim 1, characterized in that: An arc-shaped guiding structure is provided at the end of the guiding wall inside the wire tube, and the end position includes the rear end and / or the front end of the guiding wall.

5. The cable sheath of the power supply product according to claim 1, characterized in that: The outer shapes of the first flange and the second flange are circular or square.

6. The cable sheath of the power supply product according to claim 1, characterized in that: The side wall of the groove between the first flange and the second flange is a smooth plane.

7. The cable sheath of the power supply product according to claim 1, characterized in that: The length of the sealing wall inside the wire tube is greater than 0.6 mm.

8. The cable sheath of the power supply product according to claim 1, characterized in that: The ratio of the length of the guiding wall inside the wire tube to the length of the sealing wall is greater than 4:1.

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