Sheath

Abstract

The utility model provides a sheath, and belongs to the technical field of elevators. The technical problem that an electric connecting wire in an existing elevator is prone to breakage is solved. The protective sleeve comprises an elevator main body shell and a protective sleeve body fixedly connected with the elevator main body shell, a conical hole is formed in the protective sleeve body, a conical fixing piece is arranged in the conical hole, a nylon bag is arranged between the conical hole and the conical fixing piece, an electric connecting wire is electrically connected into the elevator main body shell, and the protective sleeve body is fixedly connected with the elevator main body shell. A mounting hole which is consistent with the axial direction of the conical hole is formed in the conical fixing piece; and the electric connecting wire passes through the mounting hole. According to the utility model, the electric connecting wire is protected from being easily worn and broken, and the service life of the whole machine is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting technology, and specifically refers to a protective sleeve. Background Technology

[0002] For example, in the hoist described in patent number 2024302898108, the hoist includes a main unit and a controller connected to the main unit via an electrical connection cable. The connection point between the main unit and the electrical connection cable is typically protected by a sheath. However, when operators use the controller to control the main unit, they may frequently bend or twist the electrical connection cable. This repeated movement can cause material fatigue in the electrical connection cable at the sheath connection point, leading to breakage. How can we better protect the electrical connection cable to prevent breakage? Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a protective sleeve.

[0004] The objective of this utility model can be achieved through the following technical solution: a protective sleeve, comprising a hoist main body shell and a protective sleeve body fixedly connected to the hoist main body shell, the protective sleeve body having a conical hole, a conical fixing member being provided in the conical hole, a nylon bag being provided between the conical hole and the conical fixing member, an electrical connecting wire being electrically connected inside the hoist main body shell, and an mounting hole having a mounting hole aligned with the axial direction of the conical hole in the conical fixing member, through which the electrical connecting wire passes.

[0005] Furthermore, the upper outer periphery of the conical fastener has several axially arranged serrated portions, and the outer periphery diameter of the serrated portions decreases sequentially from top to bottom.

[0006] Furthermore, the lower part of the tapered fastener is a smooth tapered part connected to the serrated part.

[0007] Furthermore, the distance between the serrated portion and the wall of the conical hole is less than the distance between the smooth conical portion and the wall of the conical hole.

[0008] Furthermore, the length of the tapered fastener is less than the length of the tapered hole.

[0009] Furthermore, the sheath body, nylon bag, and conical fastener are radially fixed by fixing bolts.

[0010] Furthermore, the nylon bag is a ring-shaped bag with a through hole in the middle.

[0011] Furthermore, the outer periphery of the sheath body has several axially evenly distributed protective grooves.

[0012] Furthermore, it also includes a fastener, which has a square stepped groove in the middle and a square stepped part at the upper end of the sheath body. After the sheath body passes through the fastener, the square stepped part engages with the square stepped groove. The fastener is fixedly connected to the hoist body shell by fasteners.

[0013] Furthermore, the upper end face of the square step portion is recessed with a limiting groove.

[0014] Compared with the prior art, the technical effects of this utility model are as follows: the sheath body is fixedly connected to the main shell of the hoist through a fastener, ensuring the stability of the sheath body; the electrical connection wire passes through the mounting hole in the middle of the conical fastener, and the electrical connection wire is also located inside the nylon bag. The nylon bag is stably fixed between the conical hole and the conical fastener through the cooperation of the conical fastener and the conical hole. In addition, the fastening and locking of the serrated part makes the nylon bag tighter and tighter during the process of being squeezed, pulled and rotated, and transfers the force that originally placed the electrical connection wire at the port of the sheath body to the force between the nylon bag and the port of the sheath body, protecting the electrical connection wire from wear and breakage, and increasing the service life of the whole machine. Attached Figure Description

[0015] Figure 1 This is a perspective view of the utility model.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 This is a perspective view of the sheath body and the main shell of the hoist of this utility model.

[0018] Drawing number markings: 1. Hoist main body shell; 2. Sheath body; 201. Conical hole; 202. Protective groove; 203. Square step part; 2031. Limiting groove; 3. Conical fastener; 301. Mounting hole; 302. Serrated part; 303. Smooth conical part; 4. Nylon bag; 5. Electrical connection wire; 6. Fastener; 601. Square step groove. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] It should be noted that the descriptions of "up", "down", "left", "right", "top", "bottom", etc. in this utility model are defined based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] according to Figures 1 to 3 As shown, a protective sleeve includes a hoist main body shell 1 and a protective sleeve body 2 fixedly connected to the hoist main body shell 1. An electrical connection wire 5 is electrically connected inside the hoist main body shell 1, and the other end of the electrical connection wire 5 is electrically connected to a controller. The end of the protective sleeve body 2 furthest from the hoist main body shell 1 is the port where the electrical connection wire 5 and the protective sleeve body 2 would originally have direct contact. Now, a conical hole 201 is provided inside the protective sleeve body 2, a conical fixing member 3 is provided inside the conical hole 201, and a nylon bag 4 is provided between the conical hole 201 and the conical fixing member 3. The device has a mounting hole 301 that is axially aligned with the tapered hole 201. The installation steps are as follows: first, pass one end of the electrical connection wire 5 through the mounting hole 301; then, pass one end of the electrical connection wire 5 and the tapered fastener 3 together through the nylon bag 4. The nylon bag 4 is fitted around the outer periphery of the tapered fastener 3. Then, pass the nylon bag 4, the tapered fastener 3, and the electrical connection wire 5 together into the tapered hole 201. Finally, push the tapered fastener 3 downwards to make it tightly fixed to the tapered hole 201. The nylon bag 4 is then fixed between the tapered hole 201 and the tapered fastener 3.

[0022] The upper outer periphery of the conical fastener 3 has several axially arranged serrated portions 302, with the outer diameter of the serrated portions 302 decreasing from top to bottom. The lower part of the conical fastener 3 is a smooth conical portion 303 connected to the serrated portions 302. The distance between the serrated portions 302 and the wall of the conical hole 201 is smaller than the distance between the smooth conical portion 303 and the wall of the conical hole 201, which allows for better installation of the conical fastener 3 and a better tight fit between the serrated portions 302 and the conical hole 201. When the nylon bag 4 is subjected to squeezing, pulling, or rotating processes, the conical fastener 3 will move downwards, causing the conical fastener 3 and the conical hole 201 to become increasingly tight and not loose, thus ensuring better contact between the nylon bag 4 and the port of the sheath body 2, protecting the internal electrical connection wires 5 from wear and breakage.

[0023] The length of the tapered fastener 3 is less than the length of the tapered hole 201. This reduces the probability of friction between the electrical connection wire 5 and the port of the tapered fastener 3.

[0024] The sheath body 2, nylon bag 4, and conical fastener 3 are radially fixed by fixing bolts. This is another way of fixing and connecting the sheath body 2, nylon bag 4, and conical fastener 3.

[0025] Nylon bag 4 is a ring-shaped bag with a through hole in the middle. The ring-shaped shape of nylon bag 4 allows for subsequent processing, that is, nylon bag 4 can be formed by processing or wrapping a sheet of nylon fabric.

[0026] The outer periphery of the sheath body 2 has several axially evenly distributed protective grooves 202. The protective grooves 202 give the sheath body 2 better flexibility.

[0027] The sheath also includes a fastener 6, which has a square stepped groove 601 in the middle and a square stepped portion 203 at the upper end of the sheath body 2. After the sheath body 2 passes through the fastener 6, the square stepped portion 203 engages with the square stepped groove 601. The fastener 6 is fixedly connected to the hoist body shell 1 by fasteners. The upper end face of the square stepped portion 203 has a limiting groove 2031 recessed therein, which can better fix it to the hoist body shell 1.

[0028] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.

Claims

1. A protective sleeve, comprising a hoist main body shell (1) and a protective sleeve body (2) fixedly connected to the hoist main body shell (1), characterized in that: The sheath body (2) has a conical hole (201) inside, and a conical fixing member (3) is provided inside the conical hole (201). A nylon bag (4) is provided between the conical hole (201) and the conical fixing member (3). An electrical connecting wire (5) is electrically connected inside the hoist body shell (1). The conical fixing member (3) has a mounting hole (301) that is axially aligned with the conical hole (201). The electrical connecting wire (5) passes through the mounting hole (301).

2. The sheath according to claim 1, characterized in that: The upper outer periphery of the tapered fastener (3) has several axially arranged serrated portions (302), and the outer periphery diameter of the serrated portions (302) decreases from top to bottom.

3. The sheath according to claim 2, characterized in that: The lower part of the tapered fastener (3) is a smooth tapered part (303) connected to the serrated part (302).

4. A sheath according to claim 3, characterized in that: The distance between the serrated part (302) and the wall of the conical hole (201) is less than the distance between the smooth conical part (303) and the wall of the conical hole (201).

5. A sheath according to claim 1, characterized in that: The length of the tapered fastener (3) is less than the length of the tapered hole (201).

6. A sheath according to claim 1, characterized in that: The sheath body (2), nylon bag (4) and conical fastener (3) are radially fixed by fixing bolts.

7. A sheath according to claim 1, characterized in that: The nylon bag (4) is a ring-shaped bag with a through hole in the middle.

8. A sheath according to claim 1, characterized in that: The outer periphery of the sheath body (2) has several axially evenly distributed protective grooves (202).

9. A sheath according to any one of claims 1 to 8, characterized in that: It also includes a fastener (6), which has a square stepped groove (601) in the middle and a square stepped part (203) at the upper end of the sheath body (2). After the sheath body (2) passes through the fastener (6), the square stepped part (203) engages with the square stepped groove (601). The fastener (6) is fixedly connected to the hoist body shell (1) by fasteners.

10. A sheath according to claim 9, characterized in that: The upper end face of the square stepped portion (203) has a recessed limiting groove (2031).

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