CN210927056U - An insulated wire end protection device - Google Patents

Abstract

The utility model discloses an insulated wire end protection device, belonging to the technical field of electric power supply. The insulated wire end protection device comprises a tightening washer, an end protection sleeve, a locking sleeve and a locking cap which are arranged in sequence. The sleeve is provided with a blind wire inlet hole for covering the end of the cable, and the cable end passes through the locking cap and the locking sleeve and is inserted into the blind wire inlet hole; the locking sleeve The barrel includes a sleeve body and a locking catch piece, the locking catch piece and the end protection sleeve are respectively fixed on both ends of the sleeve body, and the fastening washer is located between the locking catch piece and the cable between, the locking cap is connected to the locking sleeve and is used to drive the locking catch piece to grasp the tightening washer around, so as to make the tightening washer abut the cable, The problem of poor waterproof effect of the existing wire end protection device is solved.

Description

An insulated wire end protection device

technical field

The utility model relates to the technical field of electric power supply, in particular to a protection device for the end of an insulated wire.

Background technique

Since overhead cables will be wired into the home, and some users (such as schools, shopping malls, factories, etc.) will provide their own generators to ensure normal power supply during power outages without affecting the normal operation of electrical appliances, there may be self-provided power generation during power outages. The phenomenon that the power supply on the machine is reversed to the overhead main line and the main line is still electrified, if the construction personnel cut off the power supply system on the main line, and directly overhaul the power supply without the anti-fall power supply treatment, there is bound to be a large problem. Therefore, during the maintenance operation of the high-altitude power grid, it is necessary to prevent the power supply from falling down on the cable first.

In the process of preventing the power supply from falling down, firstly, it is necessary to peel off a section of the insulating sheath of the cable with the insulating sheath to form a bare wire part, and ground the wire at the bare wire part to prevent the power supply from falling down, but the long-term exposure of the cable will inevitably lead to fire and electric shock. In addition, the cable needs to be stripped every time the circuit is repaired, and the operation is also very troublesome. Therefore, a cable anti-falling power supply device has appeared on the market to ensure the waterproof and grounding conduction of the bare wire.

The existing anti-falling power supply device at the end of the cable mainly includes an insulating protective sleeve body for covering the end of the cable, a locking cover body is connected to the insulating protective sleeve body, and the insulating protective sleeve body is locked on the cable through the locking cover body, so that Design, although the insulating protective sleeve body can be sleeved on the surface of the cable, but the cable cannot be clamped well, the rainwater easily penetrates into the insulating protective sleeve body from the fitting gap, and the waterproofness is poor.

Utility model content

The purpose of the utility model is to provide an insulated wire end protection device, which has the problem of poor waterproof effect of the existing wire end protection device.

The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions:

An insulated wire end protection device, comprising a tightening washer and an end protection sleeve, a locking sleeve and a locking cap arranged in sequence, the end protection sleeve is provided with a blind wire entry hole for covering the end of the cable, the The end of the cable passes through the locking cap and the locking sleeve and is inserted into the blind hole of the wire entry;

The locking sleeve includes a sleeve body and a locking catch piece, the locking catch piece and the end protection sleeve are respectively fixed on both ends of the sleeve body, and the tightening washer is located on the locking catch. Between the sheet and the cable, the locking cap is connected to the locking sleeve and is used to drive the locking catch piece to grasp the tightening washer around, so that the tightening washer and the Tighten the cable.

With the above structure, when installing, pass the end of the cable through the locking cap, the locking sleeve and insert it into the blind hole of the cable entry in the end protective sleeve, so that the locking grasping piece is grasped around the tightening washer, so that the tightening The retaining washer firmly grips the surface of the cable. The structure is simple, the disassembly and assembly are convenient, and the setting of the tightening gasket is convenient for holding the cable tightly on the one hand, and on the other hand, it is convenient for better sealing and strong waterproofness.

It is further optimized as follows: the locking sleeve is threadedly connected with the locking cap, the locking cap is provided with a connecting hole for the cable to pass through, and the outer end of the connecting hole is in a direction away from the end protective sleeve The diameter gradually decreases.

With the above-mentioned structure, when the locking cap is tightened, the locking grasping piece will gradually move toward the middle, so that the tightening washer is held tightly on the cable. It is easy to disassemble and assemble, and has strong sealing performance and high connection strength.

It is further optimized as follows: the fastening washer is enclosed by two arc sheets, and the two arc sheets are respectively attached to the circumferential surface of the cable;

A gap is left between the two arc pieces.

With the above structure, a reserved space for holding the cable is provided, which is convenient for tightening the gasket to clamp the cable.

A further optimization is as follows: the locking cap is formed of two semicircular cylinders fastened together.

By adopting the above structure, disassembly and assembly are relatively convenient. When locking, two independent semi-circular cylinders are fastened together to form a locking cap, which is very convenient to use.

A further optimization is that: the locking sleeve further includes a connecting part, the connecting part is fixed on the open end of the end protective sleeve, and the connecting part and the locking catch are respectively fixed on both ends of the sleeve body .

By adopting the above structure, the sleeve body is fixed with the end protective sleeve through the connecting portion, and the structure design is relatively simple.

A further optimization is as follows: both the end protective sleeve and the locking sleeve are integrally provided.

By adopting the above-mentioned structure, the utility model is provided in one piece, with better sealing performance and better waterproof effect.

To sum up, the utility model has the following beneficial effects: during installation, the end of the cable is passed through the locking sleeve and inserted into the blind hole of the cable entry in the end protection sleeve, and then two independent semi-circular cylinders are inserted The body is snapped together to form a locking cap, and the cable is passed through both ends of the locking cap, and then the locking cap is tightened, so that the locking catches are grasped around the tightening washer, so that the tightening washer is firmly held on the surface of the cable. The structure is simple, the disassembly and assembly are convenient, and the setting of the tightening gasket is convenient for holding the cable tightly on the one hand, and on the other hand, it is convenient for better sealing and strong waterproofness.

Description of drawings

1 is a schematic structural diagram of an embodiment, which is mainly used to embody the structure of an insulated wire end protection device;

Fig. 2 is the schematic diagram of the explosion structure of the embodiment, which is mainly used to embody the specific structure of the end protection device of the insulated wire;

3 is a schematic structural diagram of the embodiment, mainly used to embody the structure of the locking cap;

4 is a schematic structural diagram of an embodiment, mainly used to embody the mounting structure of the fastening washer;

FIG. 5 is a schematic view of the structure of the embodiment, which is mainly used to embody the structure of the fastening washer.

In the figure, 1, end protection sleeve; 2, locking sleeve; 21, sleeve body; 22, connecting part; 23, locking catch piece; 3, locking cap; 4, tightening washer; 5, arc piece .

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Embodiment: An insulated wire end protection device, as shown in Figures 1-4, includes a fastening washer 4, an end protection sleeve 1, a locking sleeve 2 and a locking cap 3 arranged in sequence. The end protection sleeve 1 is provided with a blind hole for the cable entry for covering the end of the cable, and the cable end passes through the locking cap 3 and the locking sleeve 2 and is inserted into the blind cable entry hole. The locking sleeve 2 includes a sleeve body 21 , a locking catch 23 and a connecting portion 22 . The locking catch piece 23 is arranged around the central axis of the sleeve body 21 , and the locking catch piece 23 and the end protection sleeve 1 are respectively fixed on both ends of the sleeve body 21 . The tightening washer 4 is located between the locking catch piece 23 and the cable, and the locking cap 3 is detachably connected to the locking sleeve 2 and is used to drive the locking catch piece 23 to grasp the tightening washer 4 around, so as to tighten the The washer 4 is tight against the cable.

1-4, in order to connect tightly and facilitate disassembly and assembly, specifically, the fastening washer 4 is composed of two arcs 5 enclosed by the two arcs 5, which are respectively attached to the circumferential surface of the cable, and the two arcs 5 are closed. There is a movable gap between them, so that each of the fastening washers 4 is provided with an opening. Specifically, one end of the two arc pieces 5 is in contact, and the other end is non-contact. The locking catch piece 23 is used to grasp the two arc pieces 5 of the fastening washer 4 toward the middle, so that the gap between the two arc pieces 5 is gradually reduced, so that the fastening washer 4 and the cable are tightly fitted. The connecting portion 22 is annular and is fixed on the circumferential surface of the sleeve body 21 . The connecting portion 22 is fixed on the open end of the end protection sleeve 1 , and the connecting portion 22 and the locking catch 23 are respectively fixed on both ends of the sleeve body 21 . The locking sleeve 2 is threadedly connected with the locking cap 3 . The locking cap 3 is provided with a connecting hole for the cable to pass through. The outer end of the connection hole refers to the end of the locking cap 3 away from the end protection sleeve 1 .

1-4, for the convenience of disassembly and assembly, preferably, the locking cap 3 is made of two semi-circular cylinders fastened together. For the clamping block which is matched with the groove, under the clamping action of the clamping groove and the clamping block, the two semicircular cylinders enclose a locking cap 3 . Taking into account the waterproof requirements of the end protection device of the insulated wire, the end protection sleeve 1 and the locking sleeve 2 are integrated.

When installing, pass the end of the cable through the locking sleeve 2 and insert it into the blind hole for the cable entry in the end protection sleeve 1, then snap the two independent semicircular cylinders together to form the locking cap 3, and make the The cable passes through the two ends of the locking cap 3, and then the locking cap 3 is tightened, so that the locking catch 23 is grasped around the tightening washer 4, so that the tightening washer 4 is firmly held on the surface of the cable.

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Claims (6)

1. An insulated wire end protection device is characterized in that: the cable protection device comprises a fastening gasket (4), and a tail end protection sleeve (1), a locking sleeve (2) and a locking cap (3) which are sequentially arranged, wherein an incoming line blind hole for being sleeved at the tail end of a cable is formed in the tail end protection sleeve (1), and the tail end of the cable penetrates through the locking cap (3) and the locking sleeve (2) and is inserted into the incoming line blind hole;

locking sleeve (2) are including sleeve body (21) and locking and are grabbed piece (23), locking grab piece (23) with terminal protective sheath (1) is fixed respectively sleeve body (21) both ends, fastening washer (4) are located locking grab piece (23) with between the cable, locking cap (3) are connected locking sleeve (2) are gone up and are used for driving locking grab piece (23) and grasp to all around fastening washer (4), so that fastening washer (4) with the cable is supported tightly.

2. The insulated wire end protector of claim 1, wherein: the locking sleeve (2) is in threaded connection with the locking cap (3), a connecting hole for a cable to pass through is formed in the locking cap (3), and the diameter of the outer end of the connecting hole is gradually reduced along the direction far away from the tail end protective sleeve (1).

3. The insulated wire end protector of claim 2, wherein: the fastening washer (4) is formed by enclosing two arc sheets (5), and the two arc sheets (5) are respectively attached to the circumferential surface of the cable;

a gap is reserved between the two arc sheets (5).

4. The insulated wire end protector of claim 1, wherein: the locking cap (3) is formed by buckling two semicircular cylinders.

5. The insulated wire end protector of claim 1, wherein: the locking sleeve (2) further comprises a connecting portion (22), the connecting portion (22) is fixed at the opening end of the tail end protective sleeve (1), and the connecting portion (22) and the locking grabbing piece (23) are fixed at two ends of the sleeve body (21) respectively.

6. The insulated wire end protector of claim 1, wherein: the tail end protective sleeve (1) and the locking sleeve (2) are integrally arranged.

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