CN211080320U

CN211080320U - Rectangular concrete cover plate with locking function

Info

Publication number: CN211080320U
Application number: CN201921878263.7U
Authority: CN
Inventors: 谷勇; 席林; 刘浩宇; 罗庆; 毛嘉川; 胡进; 李霖霖
Original assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Current assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-24
Anticipated expiration: 2029-11-01

Abstract

A rectangular concrete cover plate with a locking function effectively prevents the concrete cover plate from being opened or moved randomly in the using process, and avoids potential safety hazards. The locking device comprises a rectangular concrete cover plate arranged at an opening of the cover plate, locking pins are fixedly arranged on the side walls of two sides of the opening of the cover plate, a rotating disc component which is matched with the locking pins to form vertical locking on the rectangular concrete cover plate is correspondingly arranged on the rectangular concrete cover plate, and a box locking device which forms vertical locking on the rotating disc component is fixedly arranged on one side of the rotating disc component.

Description

Rectangular concrete cover plate with locking function

Technical Field

The utility model relates to a concrete cover plate, in particular to rectangle concrete cover plate of area locking function.

Background

The cover plate is used as a common component, has various types and materials, can be selected to be suitable for different span loads and requirements, and is widely applied to different places such as municipal roads, garden facilities, residential districts, schools, stadium pipes and the like.

The rectangular concrete cover plate is used for various structures such as pools, wells and the like, and is often used as a sealing member for holes for personnel access, equipment maintenance, material hoisting and the like. The common rectangular concrete cover plate is usually only provided with a hanging ring, achieves the opening purpose through mechanical equipment or manual lifting, basically has no locking function, can be opened or moved away at will, and has certain potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rectangle concrete cover plate of area locking function is provided to effectively avoid the concrete cover plate to be opened or move at will in the use, stop the potential safety hazard.

The utility model provides a technical scheme that its technical problem adopted as follows:

the utility model discloses a rectangle concrete cover plate of area locking function, including installing the rectangle concrete cover plate at the apron entrance to a cave, characterized by: the side walls of two sides of the cover plate hole are fixedly provided with locking pins, the rectangular concrete cover plate is correspondingly provided with a rotating disc component which is matched with the locking pins to form vertical locking for the rectangular concrete cover plate, and one side of the rotating disc component is fixedly provided with a box locking device which forms vertical locking for the rotating disc component.

The box locking device consists of a lock box, a rotary lock cylinder and a lock opener, wherein the lock box is embedded in the rectangular concrete cover plate, the upper end of the rotary lock cylinder is provided with a lock opener interface which is communicated with the top surface of the rectangular concrete cover plate, and the lock opener interface is in threaded connection with the lock box; the lower end of the rotary lock core is provided with a pair of lock tongues which horizontally extend outwards.

The rotating disc component comprises an upper disc, a first lower disc and a second lower disc which are arranged on the shaft lever at intervals, wherein the upper disc is flush with the top surface of the rectangular concrete cover plate, a circumferential groove corresponding to the position of the lock tongue is formed in the upper disc, a first notch and a second notch are formed in the first lower disc and the second lower disc respectively, and the positions of the first notch and the second notch on the plane are staggered by 30-180 degrees.

The utility model has the advantages of simple structure and low production cost; the lock has a locking function, and can be unlocked by using a special unlocking device and matching a correct unlocking method; the problem that the concrete cover plate is randomly opened or moved in the using process can be effectively solved, and potential safety hazards of the cover plate in the using process are avoided; before unblanking, the carousel possesses the locking function, and the back rotary disk of unblanking possesses the function of rings, need not to set up rings alone, avoids violently mentioning the apron through the rings that set up alone and causes destruction, effectively protects locking device when guaranteeing that the apron is not opened at will.

Drawings

The specification includes the following six figures:

fig. 1 is a top view of a rectangular concrete cover plate with a locking function according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic perspective view of a rotary disc member in a rectangular concrete cover plate with a locking function according to the present invention;

fig. 4 is a schematic view of a box lock device in a rectangular concrete cover plate with a locking function according to the present invention;

fig. 5 is a schematic structural view of a pre-buried steel plate and a locking pin in a rectangular concrete cover plate with a locking function of the present invention;

fig. 6 is an enlarged view of a portion of fig. 2.

The figures show the components and corresponding references: the lock comprises a cover plate hole 10, an embedded steel plate 11, a locking pin 12, an anchor bar 13, a rectangular concrete cover plate 20, a rotating disc member 30, an upper disc 31, a first lower disc 32, a circumferential groove 31a, a second lower disc 33, a shaft lever 34, a first notch 35, a second notch 36, a box locking device 40, a lock box 41, a notch 42, a rotating lock cylinder 43, an unlocking device interface 43a and a lock tongue 44.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Referring to fig. 1 and 2, fig. 6, the utility model discloses a rectangle concrete cover plate of area locking function, including installing rectangle concrete cover plate 20 at apron entrance to a cave 10, the fixed locking round pin 12 that sets up on the lateral wall of apron entrance to a cave 10 both sides, correspond on rectangle concrete cover plate 20 and set up and cooperate the rotary disk component 30 that forms vertical locking to rectangle concrete cover plate 20 with locking round pin 12, the fixed setting in one side of rotary disk component 30 forms the case locking device of vertical locking to rotary disk component 30. The rectangular concrete cover plate 20 has two-stage locking functions, the first stage is locking between the box locking device and the rotating disc member 30, the box locking device can be opened only by using a special unlocking device, the second stage is locking between the rotating disc member 30 and the locking pin 12, the rectangular concrete cover plate 20 needs to be lifted upwards, and locking between the rotating disc member 30 and the locking pin 12 needs to be released, so that the concrete cover plate is effectively prevented from being opened or moved randomly in the using process, and potential safety hazards in the using process are avoided.

Referring to fig. 4, the box locking device is composed of a locking box 41, a rotary lock cylinder 43 and a lock opener, the locking box 41 is pre-embedded in the rectangular concrete cover plate 20, the upper end of the rotary lock cylinder 43 is provided with a lock opener interface 43a which is communicated with the top surface of the rectangular concrete cover plate 20, and the lock opener interface 43a is in threaded connection with the locking box 41; the lower end of the rotary lock cylinder 43 is provided with a pair of horizontally extending lock tongues 44. The lock box 41 is of a box-shaped structure and is formed by welding five steel plates, one side surface of the lock box is not closed, a hole is formed in the top steel plate, and threads are arranged on the inner wall of the hole. The bottom steel plate is provided with a square hole, so that the rotary lock cylinder 43 can be conveniently installed.

Referring to fig. 3, the rotating disc member 30 includes an upper disc 31, a first lower disc 32 and a second lower disc 33 which are mounted on a shaft lever 34 at intervals, an annular groove 31a corresponding to the position of the bolt 44 is formed on the upper disc 31 which is flush with the top surface of the rectangular concrete cover plate 20, a first notch 35 and a second notch 36 are respectively formed on the first lower disc 32 and the second lower disc 33, and the positions of the first notch 35 and the second notch 36 on the plane are staggered by 30-180 °.

Referring to fig. 5, the locking pin 12 is welded on the front plate surface of the embedded steel plate 11, the anchor bar 13 is welded on the rear plate surface of the embedded steel plate 11, and the embedded steel plate 11 and the anchor bar 13 are embedded in the concrete on the side wall of the cover plate opening 10.

The foregoing is illustrative of the principles of the present invention and is not intended to limit the invention to the specific constructions and applications shown and described, and all modifications and equivalents thereof that may be resorted to are intended to fall within the scope of the invention.

Claims

1. The utility model provides a take rectangular concrete apron of locking function, is including installing rectangular concrete apron (20) at apron entrance to a cave (10), characterized by: the locking device is characterized in that locking pins (12) are fixedly arranged on the side walls of two sides of the cover plate opening (10), a rotating disc component (30) which is matched with the locking pins (12) to vertically lock the rectangular concrete cover plate (20) is correspondingly arranged on the rectangular concrete cover plate (20), and a box locking device which is used for vertically locking the rotating disc component (30) is fixedly arranged on one side of the rotating disc component (30).

2. The rectangular concrete cover plate with the locking function as claimed in claim 1, wherein: the box locking device comprises a locking box (41), a rotary lock cylinder (43) and a lock opener, wherein the locking box (41) is embedded in the rectangular concrete cover plate (20), the upper end of the rotary lock cylinder (43) is provided with a lock opener interface (43a) communicated with the top surface of the rectangular concrete cover plate (20), and the lock opener interface (43a) is in threaded connection with the locking box (41); the lower end of the rotary lock core (43) is provided with a pair of lock tongues (44) which horizontally extend outwards.

3. The rectangular concrete cover plate with the locking function as claimed in claim 2, wherein: the rotating disc component (30) comprises an upper disc (31), a first lower disc (32) and a second lower disc (33) which are arranged on a shaft lever (34) at intervals, wherein the upper disc (31) which is flush with the top surface of the rectangular concrete cover plate (20) is provided with a circumferential groove (31a) corresponding to the position of a lock tongue (44), the first lower disc (32) and the second lower disc (33) are provided with a first notch (35) and a second notch (36) respectively, and the positions of the first notch (35) and the second notch (36) on the plane are staggered by 30-180 degrees.

4. The rectangular concrete cover plate with the locking function as claimed in claim 3, wherein: the locking pin (12) is welded on the front plate surface of the embedded steel plate (11), the anchor bars (13) are welded on the rear plate surface of the embedded steel plate (11), and the embedded steel plate (11) and the anchor bars (13) are buried in concrete on the side wall of the cover plate opening (10).