CN111799747A - Anti-theft structure for stuffing box - Google Patents

Abstract

An anti-theft structure for a stuffing box relates to an anti-theft structure. The invention solves the problem that the normal operation of equipment is influenced because the equipment cable cannot be normally led into the equipment junction box due to the easy loss of the existing stuffing box. The anti-theft device comprises a wiring bucket (1), a packing box (7), an anti-theft pin (3), a spring (4), a magnetic buckle (5) and a magnet (6), wherein a check groove (2) is formed in the upper end surface of the wiring bucket (1), a baffle (8) is arranged on the check groove (2), an anti-theft mounting hole (7-1) is formed in the lower portion of the packing box (7), the spring (4) is mounted in the anti-theft mounting hole (7-1), the anti-theft pin (3) is mounted on the spring (4), a clamping ring (3-1) is arranged on the anti-theft pin (3), the clamping ring (3-1) is located on the upper portion of a pin body of the anti-theft pin (3), the lower end of the spring (4) abuts against the clamping ring (3-1), the magnet (6) is mounted on the magnetic buckle (5), and the magnet (6) is adsorbed on the anti. The invention is used for the anti-theft of the stuffing box.

Description

An anti-theft structure for stuffing box

technical field

The invention relates to an anti-theft structure, in particular to an anti-theft structure for stuffing boxes.

Background technique

The stuffing box is a device used for the lead-in sealing and locking of incoming cables, and is widely used in the junction boxes of various electrical and mechanical equipment. At present, the connection structure between the junction box and the stuffing box is mostly a structure in which the junction box and the stuffing box are directly screwed. This structure is simple and convenient, but it is also very easy to disassemble at the same time. It can be easily disassembled by only reverse screwing, which leads to the frequent loss of the stuffing box during the long-distance transportation of the equipment. Due to the high value cost of the stuffing box itself, especially for the stuffing box under some special conditions, such as explosion-proof stuffing box, and the loss of the stuffing box causes the equipment cable to be unable to be properly introduced into the equipment junction box, which affects the normal operation of the equipment, and will cause serious problems. big adverse effects.

To sum up, because the existing stuffing box is easy to lose, there is a problem that the equipment cable cannot be normally introduced into the equipment junction box, which affects the normal operation of the equipment.

SUMMARY OF THE INVENTION

In order to solve the problem that the existing stuffing box is easy to lose, the invention solves the problem that the equipment cable cannot be normally introduced into the equipment junction box, which affects the normal operation of the equipment. An anti-theft structure for stuffing boxes is provided.

The technical scheme of the present invention is an anti-theft structure for a stuffing box, which includes a wiring bucket 1 and a stuffing box 7, and also includes an anti-theft pin 3, a spring 4, a magnetic buckle 5 and a magnet 6. The upper end surface of the wiring bucket 1 is provided with a stopper. The return groove 2, the check groove 2 is provided with a baffle plate 8, the lower part of the stuffing box 7 is provided with an anti-theft installation hole 7-1, the spring 4 is installed in the anti-theft installation hole 7-1, the anti-theft pin 3 is installed on the spring 4, and The anti-theft pin 3 is provided with a snap ring 3-1, the snap ring 3-1 is located on the upper part of the pin body of the anti-theft pin 3, the lower end of the spring 4 is abutted on the snap ring 3-1, the magnet 6 is installed on the magnetic buckle 5, and the magnet 6 Adsorbed on the anti-theft mounting hole 7-1.

Compared with the prior art, the present invention has the following improvement effects:

1. Compared with the traditional structure, the present invention realizes the anti-theft function without affecting the normal installation and disassembly by adding a non-return groove on the wiring bucket and adding a simple spring and anti-theft pin structure on the stuffing box. It eliminates the loss of stuffing box. Avoid the loss of the stuffing box, which will affect the installation progress of the user unit.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a partial cross-sectional view of FIG. 1 .

Detailed ways

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The present embodiment will be described with reference to Figures 1 and 2. An anti-theft structure for a stuffing box includes a wiring hopper 1 and a stuffing box 7. It also includes an anti-theft pin 3, a spring 4, a magnetic buckle 5 and a magnet 6. The wiring hopper The upper end face of 1 is provided with a check groove 2, the check groove 2 is provided with a baffle plate 8, the lower part of the stuffing box 7 is provided with an anti-theft mounting hole 7-1, the spring 4 is installed in the anti-theft mounting hole 7-1, and the anti-theft pin 3 Installed on the spring 4, and the anti-theft pin 3 is provided with a snap ring 3-1, the snap ring 3-1 is located on the upper part of the pin body of the anti-theft pin 3, the lower end of the spring 4 abuts on the snap ring 3-1, and the magnet 6 is installed On the magnetic buckle 5, the magnet 6 is adsorbed on the anti-theft mounting hole 7-1.

The invention realizes the anti-loss function of the stuffing box through the combined use of the check groove, the spring and the cylindrical pin. The loss of stuffing box is effectively eliminated without affecting normal installation and disassembly. The main principle is that there is a non-return groove on the wiring bucket. When there is no magnet to attract springs and anti-theft pins, the stuffing box can only be tightened from deep to shallow along the non-return groove, and the stuffing box cannot be unscrewed from shallow to deep along the non-return groove , Only when the spring and anti-theft pin are attracted by the magnet, the stuffing box can be unscrewed from shallow to deep along the non-return groove.

In the present invention, a check groove 2 is processed on the wiring hopper 1, and the structure of the check groove 2 is concentric with the stuffing box 7 of the wiring hopper 1. The anti-theft pin 3 and the spring 4 are added to the stuffing box 7. Magnetic buckle 5 is a long magnetic buckle, which is easy to use like a handle. The lower part of one end of the magnetic buckle 5 is provided with a magnet mounting portion 5-1, so that the magnetic buckle can be controlled without extending into the anti-theft mounting hole 7-1, and the spring and the anti-theft pin can be controlled. The upper part of the anti-theft installation hole 7-1 is provided with a spring baffle plate 7-2 to prevent the upper part of the spring from being pushed out. The spring baffle 7-2 is a hollow annular baffle, which is used to shield the spring and facilitate the entry of the magnet to adsorb the spring.

The working principle of the present invention is described with reference to Fig. 1 and Fig. 2:

When we screw in the stuffing box 7, the elastic force of the spring 4 pushes the anti-theft pin 3 to be stuck in the check groove 2. Since the check groove 2 is deep on one side and shallow on the other side, and the middle transitions smoothly, only the stuffing box 7 is allowed to follow the check groove 2. Rotate from deep to shallow.

When we want to disassemble the stuffing box 7, we need to screw the stuffing box 7 in the opposite direction. Because the elastic force of the spring 4 pushes the anti-theft pin 3 to be stuck in the check groove 2, it cannot be screwed from shallow to deep along the check groove 2. . The spring 4 and the anti-theft pin 3 must be attracted by the magnet 6 on the magnetic buckle 5, so that the stuffing box 7 is not stuck, and then the stuffing box 7 can be unscrewed.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A kind of anti-theft structure for stuffing box, it comprises wiring bucket (1) and stuffing box (7), it is characterized in that: it also comprises anti-theft pin (3), spring (4), magnetic buckle (5) and magnet ( 6), a non-return groove (2) is provided on the upper end surface of the wiring bucket (1), a baffle plate (8) is provided on the non-return groove (2), and an anti-theft mounting hole (7-1) is provided in the lower part of the stuffing box (7). ), the spring (4) is installed in the anti-theft mounting hole (7-1), the anti-theft pin (3) is installed on the spring (4), and the anti-theft pin (3) is provided with a snap ring (3-1), the snap ring (3-1) is located on the upper part of the pin body of the anti-theft pin (3), the lower end of the spring (4) is abutted on the snap ring (3-1), the magnet (6) is installed on the magnetic buckle (5), the magnet (6) ) on the anti-theft mounting hole (7-1). 2 . The anti-theft structure for stuffing box according to claim 1 , wherein the check groove ( 2 ) is opened concentrically with the wiring hopper ( 1 ) and the stuffing box ( 7 ). 3 . 3. A kind of anti-theft structure for stuffing box according to claim 2, characterized in that: the depth of the check groove (2) is that one side is deep and the other side is shallow, and the middle has a smooth transition. 4. A kind of anti-theft structure for stuffing box according to claim 3, characterized in that: the magnetic buckle (5) is an elongated magnetic buckle. 5. An anti-theft structure for a stuffing box according to claim 4, characterized in that a magnet mounting part (5-1) is provided at the lower part of one end of the magnetic buckle (5). 6. An anti-theft structure for a stuffing box according to claim 5, characterized in that: a spring baffle plate (7-2) is provided on the upper part of the anti-theft mounting hole (7-1). 7. An anti-theft structure for a stuffing box according to claim 5, characterized in that: the spring baffle (7-2) is a hollow annular baffle.

Images