Explosion-proof motor junction box

Abstract

The utility model relates to an explosion-proof motor junction box in the technical field of motor junction boxes. A containing groove used for containing a sealing device is formed in a pipe cavity of a junction pipe. The sealing device comprises a sealing assembly I which is accommodated in the accommodating groove and is used for pressing and sealing the electric wire introduced into the motor junction box, and a sealing assembly II which is matched with the sealing assembly I and is used for pressing and sealing the electric wire introduced into the motor junction box is arranged below the sealing assembly I. A first hand wheel drives a first bolt and a wiring pipe to be in threaded connection, a first circular truncated cone at the bottom end of the first bolt can rotate in a first arc-shaped clamping plate, the first arc-shaped clamping plate can move downwards, a wire in the wiring pipe is sealed and pressed, and similarly, a second arc-shaped clamping plate can move upwards, so that the wire in the wiring pipe is clamped. And the arc-shaped clamping plate I is matched to seal and press the electric wire in the wiring pipe, so that explosion dust is prevented from entering the motor junction box, and meanwhile, the abrasion of the electric wire led into the wiring pipe can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor terminal box technical field especially is related to a kind of explosion-proof motor terminal box. BACKGROUND

[0002] The electric wire of motor is passed through electric wire pipe, thus the joint part of electric wire adopts terminal box as transition, electric wire pipe is connected with terminal box, the electric wire in pipe is connected in motor terminal box, and the function of protecting electric wire and connecting electric wire is played.And the existing motor terminal box cannot be sealed to the inlet of motor terminal box when protecting the electric wire of motor, explosive dust is easily led into motor terminal box.For example, as shown in the anti-explosion motor terminal box of Chinese patent application No.CN202320456281.6, one end of electric wire is inserted into the lower part of rectangular groove, staff holds handle and rotates, can make clamping plate move downward, clamping plate can press one end of electric wire, avoid electric wire loosening, cover cover on box body, hold locking plate and rotate, four locking plates are fixed with cover, convenient to operate, without using other external tools, in addition, heat in box body is transferred to heat conduction plate and metal conduction sheet, can make heat in box body reduce, conducive to keeping good environment in box body, avoid high temperature or explosion.

[0003] However, when connecting electric wire of motor by motor terminal box, the inlet of electric wire fixed by motor terminal box cannot be fixed and sealed, long-term use leads to electric wire damage, and sealing failure can lead to dust entering terminal box and explosion. UTILITY MODEL CONTENTS

[0004] To solve the problem of the above background that when connecting electric wire of motor by motor terminal box, the inlet of electric wire fixed by motor terminal box cannot be fixed and sealed, long-term use leads to electric wire damage, and sealing failure can lead to dust entering terminal box and explosion, the utility model provides the following technical scheme:

[0005] A kind of explosion-proof motor terminal box, including the machine base of the top of installation motor, the top of the motor is provided with the motor terminal box for and machine base cooperation to protect the electric wire of motor, the right side of the motor terminal box is provided with the terminal pipe for the electric wire entering into motor terminal box and being connected with motor, sealing device is arranged in the pipe cavity of the terminal pipe for protecting the electric wire entering into motor terminal box.

[0006] The pipe cavity of the terminal pipe is provided with receiving groove for receiving sealing device.

[0007] The sealing device comprises a sealing assembly one for compressively sealing the electric wire entering into the motor terminal box and accommodated in an accommodating groove, and a sealing assembly two arranged below the sealing assembly one and used for compressively sealing the electric wire entering into the motor terminal box.

[0008] Further, the top end of the motor is provided with a plurality of terminal posts electrically connected with the motor, and the top end of the terminal post is provided with an explosion-proof terminal post electrically connected with the terminal post.

[0009] Further, the post body of the terminal post is provided with a lower stop washer, the post body of the explosion-proof terminal post is threadedly connected with a locking nut for electrically connecting, the locking nut is located at the top end of the lower stop washer, the top end of the locking nut is provided with an upper stop washer, and the post body of the explosion-proof terminal post is sleeved with an explosion-proof insulation sleeve for insulating the explosion-proof terminal post.

[0010] Further, the top end of the motor terminal box is provided with a box cover for opening and closing the motor terminal box, the top end of the box cover is provided with four threaded holes for mounting the box cover, and the top end of the box cover is provided with a nameplate for labeling the motor.

[0011] Further, the sealing assembly one comprises an arc-shaped clamping plate one for compressively sealing the electric wire in the electric wire pipe, and the bottom end of the arc-shaped clamping plate one is bonded with a rubber pad one for compressively sealing the electric wire in the electric wire pipe.

[0012] Further, the post body of the arc-shaped clamping plate one is provided with a circular table one for rotation, the top end of the circular table one is fixedly installed with a bolt one for driving the arc-shaped clamping plate one to move up and down, and the top end of the bolt one is provided with a hand wheel one for driving the bolt one to rotate.

[0013] Further, the sealing assembly two comprises an arc-shaped clamping plate two for compressively sealing the electric wire in the electric wire pipe, and the top end of the arc-shaped clamping plate two is bonded with a rubber pad two for compressively sealing the electric wire in the electric wire pipe.

[0014] Further, the post body of the arc-shaped clamping plate two is provided with a circular table two for rotation, the top end of the circular table two is fixedly installed with a bolt two for driving the arc-shaped clamping plate two to move up and down, and the top end of the bolt two is provided with a hand wheel two for driving the bolt two to rotate.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] Through setting the receiving groove and the sealing device, when the electric wire in the wiring pipe needs to be sealed and compressed, the hand wheel one drives the threaded connection between the bolt one and the wiring pipe, so that the circular table one at the bottom end of the bolt one rotates in the arc-shaped clamping plate one, the arc-shaped clamping plate one is moved downwards, and the electric wire in the wiring pipe is sealed and compressed, and the arc-shaped clamping plate two is also moved upwards, and the electric wire in the wiring pipe is sealed and compressed together with the arc-shaped clamping plate one, so that the explosion dust is prevented from entering into the motor terminal box, and the abrasion of the electric wire entering into the wiring pipe is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a motor terminal box plan view of the utility model;

[0019] Figure 3 It is a motor terminal box sectional view of the utility model;

[0020] Figure 4 It is a motor terminal box of the utility model; Figure 3 It is an enlarged view of A in the utility model.

[0021] In the drawings, the names of parts represented by each reference sign are listed as follows:

[0022] 100-motor, 101-terminal post, 102-explosion-proof terminal post, 103-lower stop washer, 104-locking nut, 105-explosion-proof insulation sleeve, 106-upper stop washer;

[0023] 200-motor terminal box, 201-box cover, 202-threaded hole, 203-nameplate;

[0024] 300-machine base;

[0025] 400-wiring pipe, 401-receiving groove;

[0026] 500-sealing device, 510-sealing assembly one, 511-hand wheel one, 512-bolt one, 513-arc-shaped clamping plate one, 514-circular table one, 515-rubber pad one, 520-sealing assembly two, 521-hand wheel two, 522-bolt two, 523-arc-shaped clamping plate two, 524-circular table two, 525-rubber pad two. DETAILED DESCRIPTION

[0027] The preferred specific embodiments for realizing the utility model are described in detail below, and clear and complete description is made in combination with the drawings.

[0028] Please refer to Figures 1-4 The utility model provides a kind of explosion-proof motor terminal box.

[0029] The motor 100 is fixedly installed on the top end of the motor 100, and the motor terminal box 200 is arranged on the top end of the motor 100 and used for protecting the electric wire of the motor 100 in cooperation with the base 300. The wiring pipe 400 is arranged on the right side of the motor terminal box 200 and used for the electric wire entering the motor terminal box 200 and being connected with the motor 100. The sealing device 500 is arranged in the pipe cavity of the wiring pipe 400 and used for protecting the electric wire entering the motor terminal box 200.

[0030] The wiring column 101 is arranged on the top end of the motor 100 and used for electrically connecting with the motor 100. The wiring column 101 has a plurality of wiring columns 101, and the plurality of wiring columns 101 are linearly arranged in the motor terminal box 200, so as to be connected with the external electric wire. The lower stop washer 103 is arranged on the column body of the wiring column 101. The explosion-proof wiring column 102 is arranged on the top end of the wiring column 101 and used for electrically connecting with the wiring column 101.

[0031] The locking nut 104 is threadedly connected on the column body of the explosion-proof wiring column 102 and used for electrically connecting. The locking nut 104 is located on the top end of the lower stop washer 103. The upper stop washer 106 is arranged on the top end of the locking nut 104. The explosion-proof insulation sleeve 105 is sleeved on the column body of the explosion-proof wiring column 102 and used for insulating the explosion-proof wiring column 102.

[0032] The box cover 201 is arranged on the top end of the motor terminal box 200 and used for opening and closing the motor terminal box 200. The threaded hole 202 is arranged on the top end of the box cover 201 and used for installing the box cover 201. The threaded hole 202 has four threaded holes 202, and the four threaded holes 202 are circumferentially arranged around the box cover 201. The threaded hole 202 is threadedly connected with the bolt, so as to seal the box cover 201. The nameplate 203 is arranged on the top end of the box cover 201 and used for labeling the motor 100. The model and other information of the motor 100 can be written on the nameplate 203.

[0033] The receiving groove 401 is arranged in the pipe cavity of the wiring pipe 400 and used for receiving the sealing device 500. The cross section of the receiving groove 401 is annular, so as to receive the sealing device 500 into the receiving groove 401.

[0034] The sealing device 500 includes the sealing assembly one 510 arranged in the receiving groove 401 and used for tightly sealing the electric wire entering the motor terminal box 200. The sealing assembly two 520 is arranged below the sealing assembly one 510 and used for tightly sealing the electric wire entering the motor terminal box 200 in cooperation with the sealing assembly one 510.

[0035] The sealing assembly one 510 comprises an arc-shaped clamping plate one 513 for sealingly compressing the electric wires in the junction tube 400, and the bottom end of the arc-shaped clamping plate one 513 is bonded with a rubber pad one 515 for sealingly compressing the electric wires in the junction tube 400.

[0036] The arc-shaped clamping plate one 513 is provided with a circular table one 514 for rotation in the plate body, and the circular table one 514 can rotate in the arc-shaped clamping plate one 513 and will not be separated from the arc-shaped clamping plate one 513; the top end of the circular table one 514 is fixedly installed with a bolt one 512 for driving the arc-shaped clamping plate one 513 to move up and down, and the bolt one 512 is in threaded connection with the junction tube 400; the top end of the bolt one 512 is provided with a hand wheel one 511 for driving the bolt one 512 to rotate; so when it is needed to seally compress the electric wires in the junction tube 400, the threaded connection between the bolt one 512 and the junction tube 400 can be driven by the hand wheel one 511, so that the circular table one 514 at the bottom end of the bolt one 512 can rotate in the arc-shaped clamping plate one 513, that is, the arc-shaped clamping plate one 513 can move downwards and seally compress the electric wires in the junction tube 400, so as to prevent the explosive dust from entering into the motor junction box 200, and meanwhile, the abrasion of the electric wires entering into the junction tube 400 can be reduced.

[0037] The sealing assembly two 520 comprises an arc-shaped clamping plate two 523 for sealingly compressing the electric wires in the junction tube 400, and the bottom end of the arc-shaped clamping plate two 523 is bonded with a rubber pad two 525 for sealingly compressing the electric wires in the junction tube 400.

[0038] The arc-shaped clamping plate two 523 is provided with a circular table two 524 for rotation in the plate body, and the circular table two 524 can rotate in the arc-shaped clamping plate two 523 and will not be separated from the arc-shaped clamping plate two 523; the top end of the circular table two 524 is fixedly installed with a bolt two 522 for driving the arc-shaped clamping plate two 523 to move up and down, and the bolt two 522 is in threaded connection with the junction tube 400; the top end of the bolt two 522 is provided with a hand wheel two 521 for driving the bolt two 522 to rotate.

[0039] Based on the above contents and the drawings, those skilled in the art can understand and implement the present application. Moreover, any non-creative modification of the present application made by those skilled in the art without creative labor still falls within the protection scope of the present application.

Claims

1. An explosion-proof motor junction box, characterized in that: The device includes a base (300) on the top of the motor (100), a motor junction box (200) on the top of the motor (100) for cooperating with the base (300) to protect the wires of the motor (100), a wiring conduit (400) on the right side of the motor junction box (200) for the power supply line to enter the motor junction box (200) and connect to the motor (100), and a sealing device (500) in the cavity of the wiring conduit (400) for protecting the wires entering the motor junction box (200); The conduit (400) has a storage groove (401) inside its cavity for storing the sealing device (500); The sealing device (500) includes a sealing component one (510) housed in a receiving groove (401) for pressing and sealing the wires entering the motor junction box (200), and a sealing component two (520) provided below the sealing component one (510) for cooperating with the sealing component one (510) to press and seal the wires entering the motor junction box (200).

2. The explosion-proof motor junction box according to claim 1, characterized in that: The top of the motor (100) is provided with a terminal (101) for electrical connection with the motor (100), and there are several terminals (101). The top of the terminal (101) is provided with an explosion-proof terminal (102) for electrical connection with the terminal (101).

3. The explosion-proof motor junction box according to claim 2, characterized in that: The terminal block (101) is provided with a lower stop washer (103) on its body. The explosion-proof terminal block (102) is threaded with a locking nut (104) on its body, and the locking nut (104) is located at the top of the lower stop washer (103). The top of the locking nut (104) is provided with an upper stop washer (106). The explosion-proof terminal block (102) is fitted with an explosion-proof insulating sleeve (105) for insulating the explosion-proof terminal block (102).

4. The explosion-proof motor junction box according to claim 1, characterized in that: The top of the motor junction box (200) is provided with a cover (201) for opening and closing the motor junction box (200). The top of the cover (201) is provided with four threaded holes (202) for installing the cover (201). The top of the cover (201) is provided with a nameplate (203) for labeling the motor (100).

5. The explosion-proof motor junction box according to claim 1, characterized in that: The sealing assembly (510) includes an arc-shaped clamping plate (513) for pressing and sealing the wires inside the conduit (400), and a rubber pad (515) for pressing and sealing the wires inside the conduit (400) is bonded to the bottom end of the arc-shaped clamping plate (513).

6. The explosion-proof motor junction box according to claim 5, characterized in that: The arc-shaped clamping plate (513) has a truncated cone (514) for rotation inside the plate body. The top of the truncated cone (514) is fixedly installed with a bolt (512) for driving the arc-shaped clamping plate (513) to move up and down. The top of the bolt (512) is provided with a handwheel (511) for driving the bolt (512) to rotate.

7. The explosion-proof motor junction box according to claim 1, characterized in that: The sealing assembly 2 (520) includes an arc-shaped clamping plate 2 (523) for pressing and sealing the wires inside the conduit (400), and a rubber pad 2 (525) for pressing and sealing the wires inside the conduit (400) is bonded to the top of the arc-shaped clamping plate 2 (523).

8. The explosion-proof motor junction box according to claim 7, characterized in that: The arc-shaped clamping plate 2 (523) has a rotating frustum 2 (524) inside its plate body. The top of the frustum 2 (524) is fixedly installed with a bolt 2 (522) for driving the arc-shaped clamping plate 2 (523) to move up and down. The top of the bolt 2 (522) is provided with a handwheel 2 (521) for driving the bolt 2 (522) to rotate.

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