CN213743932U

CN213743932U - Overcurrent protection device of large compressor

Info

Publication number: CN213743932U
Application number: CN202022659417.2U
Authority: CN
Inventors: 张洪德; 幸钢; 李钢强
Original assignee: CHONGQING ZHAOYANG GAS CO LTD
Current assignee: CHONGQING ZHAOYANG GAS CO LTD
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-20
Anticipated expiration: 2030-11-17

Abstract

The utility model belongs to the technical field of overcurrent protection devices, and relates to an overcurrent protection device of a large-scale compressor, the utility model discloses an overcurrent protection device of a large-scale compressor, which comprises a device main body, a reinforcing mechanism is arranged at the inner side of one end of the device main body, the reinforcing mechanism comprises a shifting block, the shifting block one end is arranged at the outer side of the inner wall of the device main body and is provided with a movable groove, the bottom end of the shifting block is provided with a first fixed block, the bottom end of the first fixed block is provided with a first pressing block, one side surface of the first pressing block is provided with a first spring, and one end of the first spring is connected to the inner side of the movable groove; through the reinforcing mechanism who sets up, at device main part and cable junction during operation, fix the cable at the movable groove inboard, through the effect of the drag link with first fixed block to the cable for the cable is more firm with binding post's being connected, has avoided the cable because of external factors and device main part disconnection, leads to the unable normal operating of device main part, has improved job stabilization nature.

Description

Overcurrent protection device of large compressor

Technical Field

The utility model belongs to the technical field of overcurrent protection device, a overcurrent protection device of large-scale compressor is related to.

Background

When interphase short circuit fault or abnormal load increase, insulation grade reduction and the like occur in a power grid, current suddenly increases, voltage suddenly decreases, and overcurrent protection sets the action current of a current relay according to the requirement of line selectivity. When the fault current in the circuit reaches the action value of the current relay, the action of the current relay selectively cuts off the fault circuit according to the selective requirement of the protection device, the time relay is started through the contact, after the preset time delay, the contact of the time relay is closed, the tripping coil of the circuit breaker is connected, the circuit breaker trips, the fault circuit is cut off, the signal relay is started, the signal plate falls off, and the light or sound signal is connected;

the utility model discloses an overcurrent protection device as utility model discloses that the bulletin number is CN 2376683Y, it has realized novel structure, convenient to use, and the current variation of load can in time be transmitted control switch and make its action, is an overcurrent protection device who is applicable to in the three-phase alternating current, but cable and binding post junction do not have the reinforcement measure, receives external factor to influence and disconnection stop work easily, leads to overcurrent protection device unable normal operating, and we propose the overcurrent protection device of large compressor for this reason.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to an overcurrent protection device for a large-sized compressor.

In order to achieve the above purpose, the utility model provides a following technical scheme: the overcurrent protection device of the large-scale compressor comprises a device main body, wherein a reinforcing mechanism is arranged at the inner side of one end of the device main body, the reinforcing mechanism comprises a shifting block, one end of the shifting block is positioned at the outer side of the inner wall of the device main body and is provided with a movable groove, the bottom end of the shifting block is provided with a first fixed block, the bottom end of the first fixed block is provided with a first pressing block, the surface of one side of the first pressing block is provided with a first spring, one end of the first spring is connected to the inner side of the movable groove, one end of the first fixed block is positioned at the outer side of the inner wall of the device main body and is provided with a first limiting groove, the other end of the first fixed block is positioned at the outer side of the inner wall of the device main body and is provided with a first clamping groove, the surface of one side of the device main body is provided with a second limiting groove, the inner side of the second limiting groove is movably connected with a pull rod, and the bottom end of one side of the second limiting groove is provided with a third pressing block, and a third spring is arranged on the surface of one end of the third pressing block, one end of the third spring is connected to the inner side of the second limiting groove, one end of the cable penetrates through the pull rod to be positioned at the inner side of the movable groove, and one end of the pull rod penetrates through the second limiting groove to be positioned at the outer side of the device main body.

As a preferred technical scheme of the utility model, still include coupling mechanism, coupling mechanism includes the metal mount, the metal mount is connected in the device main part bottom outside, the spread groove has been seted up to metal mount side surface, the spread groove inboard is connected with the connecting block, connecting block one end is provided with the second briquetting, just connecting block one end is in the device main part inner wall outside and has seted up the second draw-in groove, second briquetting one end surface is provided with the second spring, second spring one end is connected in the metal mount inboard surface, just connecting block one end runs through the spread groove and is provided with in the metal mount outside and draws the piece.

As an optimal technical scheme of the utility model, the shifting block is the cylinder structure, just anti-skidding line has been seted up on the shifting block surface.

As a preferred technical scheme of the utility model, first fixed block is the cylinder structure, just first fixed block diameter is nine times zero of first draw-in groove diameter.

As an optimized technical scheme of the utility model, the pull rod is "L" font structure, just anti-skidding line has been seted up on the pull rod surface.

As a preferred technical scheme of the utility model, the device main part is the cuboid structure, just device main part bottom surface is provided with the rubber pad.

As a preferred technical scheme of the utility model, the connecting block is the cylinder structure, just the quantity of connecting block is provided with two altogether.

As a preferred technical scheme of the utility model, the second briquetting is the cuboid structure, just second briquetting one end surface is provided with the rubber pad.

The beneficial effects of the utility model reside in that:

1. through the arranged reinforcing mechanism, when the device main body is connected with a cable for working, the cable is fixed on the inner side of the movable groove, and the cable is more stably connected with the wiring terminal through the restraining effect of the pull rod and the first fixed block on the cable, so that the phenomenon that the device main body cannot normally operate due to the fact that the cable is disconnected with the device main body due to external factors is avoided, and the working stability is improved;

2. through the connecting mechanism who sets up for when installation device main part to metal mount are inboard, the staff needn't go elsewhere and gain the instrument and waste time, simplified the installation flow, and this mechanism easy operation has improved work efficiency under the condition that does not influence device main part working property.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

FIG. 4 is a schematic structural view of the metal fixing frame of the present invention;

fig. 5 is an enlarged schematic structural view of the utility model at B in fig. 4;

reference numerals: 1-a device body; 2-a metal holder; 3-a cable; 11-a movable groove; 12-a shifting block; 13-a first fixed block; 14-a first limit groove; 15-first briquetting; 16-a first spring; 17-a first card slot; 18-a second card slot; 21-a connecting groove; 22-connecting block; 23-a second spring; 24-second briquettes; 25-pulling the block; 31-a pull rod; 32-a second limit groove; 33-third briquetting; 34-third spring.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1 to 3, the overcurrent protection device for a large-scale compressor includes a device body 1, a reinforcing mechanism is disposed at an inner side of one end of the device body 1, the reinforcing mechanism includes a shifting block 12, one end of the shifting block 12 is disposed at an outer side of an inner wall of the device body 1 and is provided with a movable groove 11, a first fixing block 13 is disposed at a bottom end of the shifting block 12, a first pressing block 15 is disposed at a bottom end of the first fixing block 13, a first spring 16 is disposed on a side surface of the first pressing block 15, one end of the first spring 16 is connected to an inner side of the movable groove 11, a first limiting groove 14 is disposed at an outer side of the inner wall of the device body 1 at one end of the first fixing block 13, a cable 3 is connected at an inner side of the other end of the first fixing block 13, a first clamping groove 17 is disposed at an outer side of the inner wall of the device body 1 at the other end of the first fixing block 13, a second limiting groove 32 is disposed at an inner side of the device body 1 and is movably connected with a pull rod 31, a third pressing block 33 is arranged at the bottom end of one side of the pull rod 31, a third spring 34 is arranged on the surface of one end of the third pressing block 33, one end of the third spring 34 is connected to the inner side of the second limiting groove 32, one end of the cable 3 penetrates through the pull rod 31 and is positioned on the inner side of the movable groove 11, and one end of the pull rod 31 penetrates through the second limiting groove 32 and is positioned on the outer side of the device main body 1;

when the cable 3 is connected with the wiring terminal of the device main body 1, the cable enters the inner side of the movable groove 11 and sequentially penetrates into the first fixed block 13 and the pull rod 31, the first pressing block 15 at the bottom end of the first fixed block 13 is pressed against the inner side of the first clamping groove 17 by the force of the first spring 16, and the third pressing block 33 at the bottom end of the pull rod 31 is pressed by the force of the third spring 34 to press the pull rod 31 against the inner side of the movable groove 11, so that the cable 3 is restrained by the two forces in opposite directions; through the reinforcing mechanism who sets up, when device main part 1 and cable 3 connection work, fix cable 3 at movable groove 11 inboardly, through pull rod 31 and the effect of the control of first fixed block 13 to cable 3 for cable 3 is more firm with binding post's being connected, has avoided cable 3 because of external factors and device main part 1 disconnection, leads to the unable normal operating of device main part 1, has improved job stabilization nature.

Referring to fig. 1, 4 and 5, the overcurrent protection device for a large-scale compressor further includes a connection mechanism, the connection mechanism includes a metal fixing frame 2, the metal fixing frame 2 is connected to the outer side of the bottom end of the device main body 1, a connection groove 21 is formed on a surface of one side of the metal fixing frame 2, a connection block 22 is connected to the inner side of the connection groove 21, a second pressing block 24 is arranged at one end of the connection block 22, one end of the connection block 22 is located on the outer side of the inner wall of the device main body 1 and is provided with a second clamping groove 18, a second spring 23 is arranged on a surface of one end of the second pressing block 24, one end of the second spring 23 is connected to the surface of the inner side of the metal fixing frame 2, and a pull block 25 is arranged at one end of the connection block 22, which passes through the connection groove 21, and is located on the outer side of the metal fixing frame 2;

the pulling block 25 is pulled, so that the second pressing block 24 presses the second spring 23 to be stressed and contracted, the space inside the metal fixing frame 2 is enlarged, the pulling block 25 is loosened after the device main body 1 is placed inside the metal fixing frame 2, the second spring 23 rebounds, and the connecting block 22 is pushed into the inner side of the second clamping groove 18 by the second pressing block 24 under stress; through the connecting mechanism who sets up for when installation device main part 1 to metal mount 2 are inboard, the staff needn't go elsewhere and gain the instrument and waste time, simplified the installation flow, and this mechanism easy operation has improved work efficiency under the condition that does not influence device main part 1 working property.

Referring to fig. 3, in the overcurrent protection device for a large-scale compressor, the shift block 12 is a cylinder structure, and the surface of the shift block 12 is provided with anti-skid threads; through setting shifting block 12 to the cylinder structure, it is better to use the feeling, and has seted up anti-skidding line on shifting block 12 surface, has strengthened frictional force, convenient to use.

Referring to fig. 3, in the overcurrent protection apparatus for a large-scale compressor, the first fixing block 13 is a cylindrical structure, and the diameter of the first fixing block 13 is nine times of the zero point of the diameter of the first engaging groove 17; the diameter of the first fixing block 13 is set to be nine times of the zero point of the diameter of the first clamping groove 17, so that the first fixing block 13 is conveniently clamped and connected with the first clamping groove 17.

Referring to fig. 2, in the overcurrent protection device of the large-scale compressor, the pull rod 31 is in an L-shaped structure, and the surface of the pull rod 31 is provided with anti-skid threads; the pull rod 31 is arranged to be of an L-shaped structure, so that the mechanism is more complete, anti-skid lines are arranged on the surface of the pull rod 31, and the friction force between a hand and the pull rod 31 is increased.

Referring to fig. 1, an overcurrent protection device for a large-scale compressor is shown, in which a device body 1 is a rectangular parallelepiped structure, and a rubber pad is disposed on a bottom surface of the device body 1; through setting up device main part 1 into the cuboid, the volume is bigger more stable, has set up the rubber pad at 1 bottom surface of device main part, and 1 bottom surface of protection device main part is not impaired.

Referring to fig. 4 to 5, in the overcurrent protection device for a large-scale compressor, the connection blocks 22 are cylindrical, and the number of the connection blocks 22 is two; through having set up two connecting blocks 22, strengthened the equilibrium for device main part 1 is connected more stably with metal fixing frame 2.

Referring to fig. 4 to 5, in the overcurrent protection device of the large-scale compressor, the second pressing block 24 is in a rectangular parallelepiped structure, and a rubber pad is arranged on a surface of one end of the second pressing block 24; through setting up second briquetting 24 into cuboid structure for second briquetting 24 is more stable with being connected of second spring 23, and has set up the rubber pad at second briquetting 24 one end surface, has the buffering effect when making second briquetting 24 and device main part 1 surface connection.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. Overcurrent protection device of large-scale compressor, including device main part (1), its characterized in that: the device is characterized in that a reinforcing mechanism is arranged on the inner side of one end of the device main body (1), the reinforcing mechanism comprises a shifting block (12), one end of the shifting block (12) is arranged on the outer side of the inner wall of the device main body (1) and provided with a movable groove (11), a first fixed block (13) is arranged at the bottom end of the shifting block (12), a first pressing block (15) is arranged at the bottom end of the first fixed block (13), a first spring (16) is arranged on one side surface of the first pressing block (15), one end of the first spring (16) is connected to the inner side of the movable groove (11), a first limiting groove (14) is formed in the outer side of the inner wall of the device main body (1) at one end of the first fixed block (13), a cable (3) is connected to the inner side of the other end of the first fixed block (13), a first clamping groove (17) is formed in the outer side of the inner wall of the device main body (1), a second limiting groove (32) is formed in one side surface of the device main body (1), the utility model discloses a device, including first spacing groove (32), second spacing groove (32) inboard swing joint have pull rod (31), pull rod (31) one side bottom is provided with third briquetting (33), third briquetting (33) one end surface is provided with third spring (34), third spring (34) one end is connected in second spacing groove (32) inboardly, just cable (3) one end is run through pull rod (31) and is in activity groove (11) inboardly, pull rod (31) one end is run through second spacing groove (32) and is in the device main part (1) outside.

2. The overcurrent protection apparatus for a large-sized compressor according to claim 1, wherein: still include coupling mechanism, coupling mechanism includes metal mount (2), metal mount (2) are connected in the device main part (1) bottom outside, spread groove (21) have been seted up to metal mount (2) a side surface, spread groove (21) inboard is connected with connecting block (22), connecting block (22) one end is provided with second briquetting (24), just connecting block (22) one end is in the device main part (1) inner wall outside and has seted up second draw-in groove (18), second briquetting (24) one end surface is provided with second spring (23), second spring (23) one end is connected in metal mount (2) inboard surface, just connecting block (22) one end is run through spread groove (21) and is provided with and draws piece (25) in the metal mount (2) outside.

3. The overcurrent protection apparatus for a large-sized compressor according to claim 1, wherein: the shifting block (12) is of a cylindrical structure, and anti-skid grains are formed in the surface of the shifting block (12).

4. The overcurrent protection apparatus for a large-sized compressor according to claim 1, wherein: the first fixing block (13) is of a cylindrical structure, and the diameter of the first fixing block (13) is nine times of the diameter of the first clamping groove (17).

5. The overcurrent protection apparatus for a large-sized compressor according to claim 1, wherein: the pull rod (31) is of an L-shaped structure, and anti-skid grains are arranged on the surface of the pull rod (31).

6. The overcurrent protection apparatus for a large-sized compressor according to claim 1, wherein: the device main body (1) is of a cuboid structure, and a rubber pad is arranged on the bottom end surface of the device main body (1).

7. The overcurrent protection apparatus for a large-sized compressor according to claim 2, wherein: the connecting blocks (22) are of a cylindrical structure, and the number of the connecting blocks (22) is two.

8. The overcurrent protection apparatus for a large-sized compressor according to claim 2, wherein: the second pressing block (24) is of a cuboid structure, and a rubber pad is arranged on the surface of one end of the second pressing block (24).