CN211950071U

CN211950071U - Anti-falling safety device for box door

Info

Publication number: CN211950071U
Application number: CN202020445297.3U
Authority: CN
Inventors: 张加华; 曾晓丹
Original assignee: Guangdong Power Grid Co Ltd; Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-17
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a case door anti-falling safety device, which relates to the field of electric power metering tools, and has higher safety compared with the traditional anti-falling device, and comprises a door body, a case body, a pulley block, a steel wire rope and a slide block; the door body is rotationally connected with the box body; the pulley block is fixedly connected with the box body; the steel wire rope is wound on the pulley block, one end of the steel wire rope is connected with the door body, and the other end of the steel wire rope is connected with the sliding block; the box body is provided with a slide way, and the slide block can move and is limited in the slide way. When the door body has the tendency of falling relative to the box body, the door body drives the steel wire rope to enable the steel wire rope to be connected to one end of the door body and to be far away from the box body, so that the other end of the steel wire rope drives the sliding block to slide in the sliding way until the sliding block abuts against one end, close to the pulley block, of the sliding way, the sliding block abuts against the sliding way to generate resistance to resist the tendency that the door body is far away from the box body, the falling tendency of the door body relative to the box body is offset, the effect of preventing the door body from continuing.

Description

Anti-falling safety device for box door

Technical Field

The utility model relates to an electric power measuring tool field especially relates to a case door anti-falling safety device.

Background

The electric power metering box is provided with a box door, the electric power metering box is one of metering devices and is the most common power supply facility for users, and each city has more than dozens of thousands of large and small electric power metering boxes; in actual operation, the discovery has not few chamber doors to hang on the table case, the table case hinge drops, and the phenomenon that table case hasp fracture, table case rot, table case do not have a door in case the chamber door drops then has certain potential safety hazard.

Therefore, people release a falling-preventing device to eliminate the hidden trouble, however, most of the traditional falling-preventing devices are only in the modes of reinforcing a hinge between a door body and a box body, and the falling-preventing effect of the device is poor when the box door falls off, so that the safety problem is easy to occur, and the traditional falling-preventing device is low in safety and cannot meet the safety requirements of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a case door anti-falling safety device solves the low problem of security of traditional anti-falling device.

To achieve the purpose, the utility model adopts the following technical proposal:

a box door anti-falling safety device comprises a door body, a box body, a pulley block, a steel wire rope and a slide block; the door body is rotationally connected with the box body;

the pulley block is fixedly connected with the box body; the steel wire rope is wound on the pulley block, one end of the steel wire rope is connected with the door body, and the other end of the steel wire rope is connected with the sliding block;

the box body is provided with a slide way, and the slide block can move and is limited in the slide way.

Optionally, a stop rod for limiting the sliding of the sliding block is arranged in the sliding way in a protruding manner; and a clamping groove is formed in the position, corresponding to the stop rod, of the sliding block.

Optionally, the pulley block comprises a first pulley, a second pulley and a third pulley;

the steel wire rope is sequentially wound on the second pulley, the third pulley and the first pulley along the extending direction from the door body to the sliding block;

the second pulley is used for converting the extending direction of the steel wire rope from the vertical direction to the horizontal direction;

the third pulley is used for converting the extending direction of the steel wire rope from the direction facing the second pulley to the direction facing the first pulley;

the first pulley is used for converting the extending direction of the steel wire rope from the horizontal direction to the vertical direction.

Optionally, a connecting column, a ball and a sliding disc are sequentially connected between the second pulley and the box body;

the second pulley is rotatably connected with the connecting column; one end of the connecting column, which is far away from the second pulley, is fixedly connected with the ball; the sliding disc is provided with a sliding rail corresponding to the position of the ball, and the sliding disc is connected with the ball in a sliding mode through the sliding rail.

Optionally, a first mounting rod is convexly arranged on one side of the door body facing the box body, and a first limiting bead is arranged on one side of the first mounting rod away from the door body;

a position of the box body corresponding to the first limiting bead is provided with a limiting groove; grooves are respectively arranged on two sides of the limiting groove; the bottom of the groove is connected with a pressure spring; one side of the pressure spring, which is far away from the groove bottom of the groove, is connected with a stop lever, and one side of the stop lever, which is far away from the pressure spring, is provided with a second limiting ball; the second limiting bead is used for locking the first limiting bead in the limiting groove.

Optionally, one side of the door body facing the box body is connected with an iron block, and the position of the box body corresponding to the iron block is connected with a magnet.

Optionally, a reaction box is arranged inside the door body; the reaction box is filled with two reaction materials, and at least one baffle plate for separating the two reaction materials is arranged in the reaction box;

the reaction box is provided with a through groove for pulling out the baffle; the baffle is connected with a connecting rope, and the other end of the connecting rope is fixedly connected with the box body;

an air bag is further laid in the door body and connected with an air pipe, and the air pipe is communicated with the air bag and the reaction box.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a safeties that falls is prevented to chamber door, when the relative box of the door body had the trend of falling, the door body drove wire rope and makes wire rope connect and keep away from the box in the one end of the door body for wire rope's the other end drives the slider activity in the slide, it offsets until the slider offsets with the one end that the slide is close to the assembly pulley, offset the trend of keeping away from the box that produces resistance to resist wire rope through slider and slide, thereby make the trend of falling of the relative box of the door body offset, play the effect that prevents that the door body from continuing to fall, the security that safeties is prevented to the.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

Fig. 1 is a schematic view of a front cross-sectional structure of a door fall-prevention safety device provided by the present invention;

fig. 2 is a schematic view of the front view structure of the anti-falling safety device for the box door provided by the present invention;

fig. 3 is a left side view structural schematic diagram of the anti-falling safety device for the chamber door provided by the utility model;

FIG. 4 is an enlarged view of part A of FIG. 1;

fig. 5 is an enlarged schematic view of part B in fig. 1.

Illustration of the drawings: 1. a door body; 11. a first mounting bar; 12. a first limiting bead; 13. an iron block; 2. a box body; 21. a slideway; 22. a stopper rod; 23. a limiting groove; 24. a groove; 25. a pressure spring; 26. a gear lever; 27. a second limiting bead; 28. a magnet; 3. a pulley block; 31. a first pulley; 32. a second pulley; 33. a third pulley; 34. connecting columns; 35. a ball bearing; 36. a slide plate; 37. a slide rail; 4. a wire rope; 5. a slider; 6. a reaction box; 61. a baffle plate; 62. a through groove; 7 connecting ropes; 8. an air bag; 9. the trachea.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Please refer to fig. 1 to 5, fig. 1 is a schematic front view sectional structure of a door anti-falling safety device, fig. 2 is a schematic front view structural view of a door anti-falling safety device, fig. 3 is a schematic left view structural view of a door anti-falling safety device, fig. 4 is an enlarged structural view of a portion a in fig. 1, and fig. 5 is an enlarged structural view of a portion B in fig. 1.

The embodiment of the utility model provides a safety device that falls is prevented to chamber door mainly is applied to the power metering box, can prevent the trend of falling of the door body 1 of power metering box, prevents to cause life or loss of property, has improved the security of power metering box.

As shown in fig. 1, a box door fall-preventing safety device comprises a door body 1, a box body 2, a pulley block 3, a steel wire rope 4 and a sliding block 5; the door body 1 is rotatably connected with the box body 2; the pulley block 3 is fixedly connected with the box body 2; the steel wire rope 4 is wound on the pulley block 3, one end of the steel wire rope is connected with the door body 1, and the other end of the steel wire rope is connected with the sliding block 5; the box body 2 is provided with a slide rail 21, and the slide block 5 can move and is limited in the slide rail 21. The door body 1 is rotatably connected with the box body 2 through a hinge, and a connecting block used for being connected with the steel wire rope 4 is arranged on the door body 1; specifically, when the door body 1 has the trend of falling relative to the box 2, the door body 1 drives the wire rope 4 to enable the wire rope 4 to be connected with one end of the door body 1 and be far away from the box 2, so that the other end of the wire rope 4 drives the sliding block 5 to move in the slideway 21, until the sliding block 5 is abutted against one end of the slideway 21 close to the pulley block 3, the sliding block 5 is abutted against the slideway 21 to generate a resistance to resist the trend of the wire rope 4 far away from the box 2, so that the falling trend of the door body 1 relative to the box 2 is offset, the effect of preventing the door body 1 from continuing falling is achieved, and the safety of the anti.

Further, as shown in fig. 2 and 4, a stop rod 22 for limiting the sliding of the slide block 5 is arranged in the slide way 21 in a protruding manner; the slide block 5 is provided with a slot 51 corresponding to the stop rod 22. Through the setting of stop lever 22 and draw-in groove 51, when the door body 1 had the trend of falling, draw-in groove 51 registrates in stop lever 22 earlier, through the friction of draw-in groove 51 with stop lever 22 earlier for the trend of falling obtains slowing down earlier, reduces the kinetic energy of the trend of falling through the frictional heating, and kinetic energy is too big and damage chamber door safety device that prevents falling when avoiding slider 5 and box 2 to collide with each other, has improved the security.

Further, the pulley block 3 comprises a first pulley 31, a second pulley 32 and a third pulley 33; the first pulley 31, the second pulley 32 and the third pulley 33 are all arranged on the top surface of the box body 2; the steel wire rope 4 is sequentially wound on the second pulley 32, the third pulley 33 and the first pulley 31 along the extending direction from the door body 1 to the sliding block 5;

wherein the second pulley 32 is used for converting the extending direction of the steel wire rope 4 from the vertical direction to the horizontal direction; the third sheave 33 is used to convert the extending direction of the wire rope 4 from the direction toward the second sheave 32 to the direction toward the first sheave 31; the first sheave 31 is used to convert the extending direction of the wire rope 4 from the horizontal direction to the vertical direction. Specifically, the first pulley 31 is installed at the center of one side of the top end of the box body 2, and the steel wire rope 4 connected with the sliding block 5 at the first pulley 31 extends along the extension direction of the slide rail 21; the third pulley 33 is arranged at the center of one end of the top end of the box body 2 far away from the first pulley 31; the second pulley 32 is mounted at the top end of the box body 2 close to one side of the door body 1, and is also positioned at one end of the box body 2 far away from the first pulley 31 like the third pulley 33; the first pulley 31, the third pulley 33, and the second pulley 32 are L-shaped when viewed from above the casing 2. Through the arrangement, the trend of the steel wire rope 4 is adjusted, so that the steel wire rope 4 extends to one surface of the box body 2 adjacent to the door body 1 from the door body 1, the occupied space is small, and the space utilization rate is high.

Furthermore, a connecting column 34, a ball 35 and a sliding disc 36 are sequentially connected between the second pulley 32 and the box body 2; the second pulley 32 is rotatably connected with the connecting column 34; one end of the connecting column 34 far away from the second pulley 32 is fixedly connected with a ball 35; the slide plate 36 is provided with a slide rail 37 at a position corresponding to the ball 35, and the slide plate 36 is connected with the ball 35 in a sliding manner through the slide rail 37. When the door body 1 rotates relative to the box body 2, the friction between the steel wire rope 4 and the inner wall of the second pulley 32 drives the ball 35 to slide in the slide rail 37 so as to drive the second pulley 32 to slide, and the steel wire rope 16 is prevented from being wound and knotted due to the influence of opening and closing of the door body 1; through the above, when the door body 1 and the box body 2 rotate, the second pulley 32 slides a distance away from the sliding disc 36, so that the up-and-down movement of the sliding block 5 is avoided, the stress of the door body 1 in the rotation relative to the box body 2 is optimized, and the door opening experience of the door body 1 is optimized.

Furthermore, a first mounting rod 11 is convexly arranged on one side of the door body 1 facing the box body 2, and a first limiting bead 12 is arranged on one side of the first mounting rod 11 far away from the door body 1; a limiting groove 23 is formed in the position, corresponding to the first limiting bead 12, of the box body 2; two sides of the limiting groove 23 are respectively provided with a groove 24; the bottom of the groove 24 is connected with a pressure spring 25; one side of the pressure spring 25, which is far away from the groove bottom of the groove 24, is connected with a stop lever 26, and one side of the stop lever 26, which is far away from the pressure spring 25, is provided with a second limiting ball 27; the second position-limiting bead 27 is used for locking the first position-limiting bead 12 in the position-limiting groove 23.

Specifically, when first spacing pearl 12 inserts spacing groove 23, first spacing pearl 12 extrudees the spacing pearl 27 of second and makes the pressure spring 25 take place elastic deformation, and the spacing pearl 27 of second moves to and blocks first spacing pearl 12 with the position of first spacing pearl 12 under the spring action of pressure spring 25 finally to accomplish the tight of the door body 1, easily receive wind-force or manpower influence and bump and cause the damage of the door body 1 to fall when preventing the door body 1 from not tightly closing.

Further, one side of the door body 1 facing the box body 2 is connected with an iron block 13, and a position of the box body 2 corresponding to the iron block 13 is connected with a magnet 28.

Further, a reaction box 6 is arranged inside the door body 1; the reaction box 6 is filled with two reaction materials, and at least one baffle 61 for separating the two reaction materials is arranged in the reaction box 6; the reaction box 6 is provided with a through groove 62 for pulling out the baffle 61; the baffle 61 is connected with a connecting rope 7, and the other end of the connecting rope 7 is fixedly connected with the box body 2; an air bag 8 is further laid in the door body 1, the air bag 8 is connected with an air pipe 9, and the air pipe 9 is communicated with the air bag 8 and the reaction box 6.

Specifically, the reaction material of baffle 61 both sides is respectively for folding sodium carbide and potassium nitrate, and when the trend of falling of the door body 1 can't block, door body 1 breaks away from box 2 and makes connection rope 7 pulling baffle 61 take out from leading to groove 62 for the potassium nitrate on 6 inside tops of the folding sodium carbide of reaction box and 6 inside bottoms of reaction box reacts rapidly and produces a large amount of ammonia and rush into 8 inside of gasbag through trachea 9, and 8 rapid expansions of gasbag pop out from 1 inside of the door body and prevent to injure past pedestrian or object by a crashing object.

In summary, the door anti-falling safety device provided in this embodiment improves the safety and safety of the door anti-falling safety device by improving the locking ability of the door body 1 and the cabinet 2, preventing the falling tendency of the door body 1, and reducing the falling damage of the door body 1.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A box door anti-falling safety device is characterized by comprising a door body (1), a box body (2), a pulley block (3), a steel wire rope (4) and a sliding block (5); the door body (1) is rotatably connected with the box body (2);

the pulley block (3) is fixedly connected with the box body (2); the steel wire rope (4) is wound on the pulley block (3), one end of the steel wire rope is connected with the door body (1), and the other end of the steel wire rope is connected with the sliding block (5);

a slide rail (21) is arranged on the box body (2), and the sliding block (5) can move and is limited in the slide rail (21).

2. A fall arrest safety device for a door according to claim 1, characterised in that a stop lever (22) limiting the sliding of the slider (5) is provided projecting inside the chute (21); and a clamping groove (51) is formed in the position, corresponding to the stop rod (22), of the sliding block (5).

3. A chamber door fall arrest safety device according to claim 1, characterized in that the set of pulleys (3) comprises a first pulley (31), a second pulley (32) and a third pulley (33);

the steel wire rope (4) is sequentially wound on the second pulley (32), the third pulley (33) and the first pulley (31) along the extending direction from the door body (1) to the sliding block (5);

wherein the second pulley (32) is used for converting the extending direction of the steel wire rope (4) from the vertical direction to the horizontal direction;

the third pulley (33) is used for converting the extending direction of the steel wire rope (4) from the direction facing the second pulley (32) to the direction facing the first pulley (31);

the first pulley (31) is used for converting the extending direction of the steel wire rope (4) from the horizontal direction to the vertical direction.

4. A door fall-prevention safety device according to claim 3, characterized in that a connecting column (34), a ball (35) and a sliding disc (36) are connected between the second pulley (32) and the box body (2) in sequence;

the second pulley (32) is rotationally connected with the connecting column (34); one end of the connecting column (34) far away from the second pulley (32) is fixedly connected with the ball (35); the sliding disc (36) is provided with a sliding rail (37) at a position corresponding to the ball (35), and the sliding disc (36) is connected with the ball (35) in a sliding manner through the sliding rail (37).

5. The anti-falling safety device for the door of claim 1, characterized in that a first mounting rod (11) is convexly arranged on one side of the door body (1) facing the box body (2), and a first limiting bead (12) is arranged on one side of the first mounting rod (11) far away from the door body (1);

a limiting groove (23) is formed in the position, corresponding to the first limiting bead (12), of the box body (2); grooves (24) are also respectively arranged on the two sides of the limiting groove (23); the bottom of the groove (24) is connected with a pressure spring (25); one side of the pressure spring (25) far away from the groove bottom of the groove (24) is connected with a blocking rod (26), and one side of the blocking rod (26) far away from the pressure spring (25) is provided with a second limiting ball (27); the second limiting bead (27) is used for locking the first limiting bead (12) in the limiting groove (23).

6. A door anti-falling safety device according to claim 1, characterized in that one side of the door body (1) facing the box body (2) is connected with an iron block (13), and a position of the box body (2) corresponding to the iron block (13) is connected with a magnet (28).

7. A door anti-fall safety device according to claim 1, characterized in that a reaction box (6) is arranged inside the door body (1); the reaction box (6) is filled with two reaction materials, and at least one baffle (61) for separating the two reaction materials is arranged in the reaction box (6);

the reaction box (6) is provided with a through groove (62) for pulling out the baffle (61); the baffle (61) is connected with a connecting rope (7), and the other end of the connecting rope (7) is fixedly connected with the box body (2);

an air bag (8) is further laid in the door body (1), the air bag (8) is connected with an air pipe (9), and the air pipe (9) is communicated with the air bag (8) and the reaction box (6).