Door knife device with door lock and capable of preventing door from being scrabbed

By designing a door-knife device with a door lock and anti-pry function, the coordinated movement of components prevents the elevator door from being illegally pried open, thus solving the safety hazard of elevator doors, providing an emergency door opening function, and improving the safety and reliability of elevator operation.

CN223632870UActive Publication Date: 2025-12-05CIXI HONGFENG ELEVATOR FITTINGS
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Patent Information

Application Number
CN202422691931.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-12-05
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

Elevator doors can easily be pried open due to human error during operation, posing a safety hazard.

Method used

Design a door-opening device with a lock and anti-pry mechanism, comprising multiple components such as a base plate, a swing arm, a connecting rod, a lock hook, and a steel wire rope. Through the coordinated movement of these components, the device prevents the door from being illegally opened and provides an emergency door opening function in case of elevator malfunction.

Benefits of technology

It effectively prevents elevator doors from being illegally pried open, ensures passenger safety, and provides an emergency door opening method in case of elevator malfunction, thereby improving the safety and reliability of elevator operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223632870U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of elevators, in particular to an anti-pushing door knife device with a door lock. The utility model discloses an anti-pushing door knife device with a door lock. Comprising a bottom plate assembly, a swing rod assembly, a convex plate assembly, a plug assembly, a fixed ball assembly, a movable ball assembly, a cushion column, a right lower connecting rod assembly, a connecting rod assembly, an emergency steel wire rope assembly, a right anti-pushing plate assembly, a right tool arm assembly, a left lower connecting rod assembly, a left anti-pushing plate assembly, a left upper connecting rod assembly, a right upper connecting rod assembly, a push plate assembly and a steel wire rope pulling plate assembly. A limiting hole a is formed in the upper portion of the left side of the bottom plate assembly, a rocker fixing shaft a is arranged below the limiting hole a, and one end of the rocker fixing shaft a penetrates through the bottom plate assembly and is fixed through a nut. The door knife has the advantages that when a person scratches a door from the outside of a car to the two sides, the left and right door scratches prevention assemblies on the door knife can move outwards from the two sides at the same time, and the left door scratches prevention assembly drives the left upper connecting rod assembly to rotate to push the lock hook assembly, so that the lock hook is lifted and the left and right knife arm assemblies are closed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to elevator field especially a kind of door lock anti-scraping door door cutter device. BACKGROUND

[0002] Elevator door cutter is the device for controlling elevator door opening and closing, during the operation of elevator, it is inevitable to encounter failure, but user in elevator is prone to error operation, and it produces security risk, to prevent the situation of human in car scraping open door. SUMMARY

[0003] In order to solve the above-mentioned technical problem of security risk of scraping open door, the utility model provides a door lock anti-scraping door door cutter device.

[0004] The technical scheme of the utility model is as follows:

[0005] The utility model provides a door sword device of anti-snatching door with door lock, including bottom plate subassembly, swing bar subassembly, convex plate subassembly, plug subassembly, fixed ball subassembly, movable ball subassembly, pad column, right lower connecting rod subassembly, connecting rod subassembly, emergency wire rope subassembly, right anti-snatching board subassembly, right sword arm subassembly, left lower connecting rod subassembly, left anti-snatching board subassembly, left upper connecting rod subassembly, right upper connecting rod subassembly, push plate subassembly, wire rope pull plate subassembly, lock hook subassembly and left sword arm subassembly, the left side upper portion of bottom plate subassembly is equipped with limit hole a, is equipped with swing lever fixed axle a below limit hole a, swing lever fixed axle a one end passes through the nut fixed of bottom plate subassembly, swing lever fixed axle a other end passes through the nut fixed of bearing, bearing outer cover is equipped with swing lever axle sleeve a, swing lever axle sleeve a is equipped outside the right middle part of swing bar subassembly, swing bar subassembly inner wall is equipped with swing lever limit axle, is equipped with limit wheel a on swing lever limit axle, limit wheel a is in limit hole a, swing bar subassembly is trapezoidal, upper big small, swing bar subassembly upper inner wall is equipped with belt pin axle, belt pin axle is located in the top left side gap of bottom plate subassembly, swing bar subassembly lower part is connected together through connecting axle a with left upper connecting rod subassembly and push plate subassembly, push plate subassembly is in the inside, left upper connecting rod subassembly is in the outside, left upper connecting rod subassembly lower end is connected with left sword arm subassembly, left sword arm subassembly lower end is connected with left lower connecting rod subassembly lower end, left anti-snatching board subassembly is connected together with left lower connecting rod subassembly left end, left upper connecting rod subassembly left end respectively through axle with baffle ring, left lower connecting rod subassembly left end passes through connecting axle c with push plate subassembly and connecting rod subassembly, left lower connecting rod subassembly middle is oval hole, the limit axle a on left sword arm subassembly is clamped in oval hole,The spring pad is fixed under the nut, and the movable shaft is arranged on both sides of the spring pad and penetrates the lower end of the release support, and the movable shaft is sleeved with a spring, the bearing connecting shaft b is arranged on the inner side of the right end of the left upper connecting rod assembly, the bearing connecting shaft b is located on the right side of the stop body a, the bearing is arranged on the bearing connecting shaft b, the plug assembly is fixed on the left upper part of the back of the bottom plate assembly through the cushion column, the baffle is arranged on the right upper part of the bottom plate assembly, the baffle is provided with a hole, a cross groove head screw is arranged in the hole, the head of the cross groove head screw is provided with a gasket, the gasket is arranged below the cross groove head screw, the cross groove head screw is sleeved with a spring, the lower end of the cross groove head screw is fixed on the clamping plate of the inner wall of the convex plate assembly, the bearing is arranged on the right side of the convex plate assembly, the dead point stop block fixing shaft a is arranged on the bearing, the dead point stop block fixing shaft penetrates the bottom plate assembly and connects the fixed ball assembly, the dead point stop block fixing shaft b is arranged on the left side of the convex plate assembly, the dead point stop block fixing shaft b penetrates the limiting hole b and connects the movable ball assembly, the positioning wheel is arranged in the dead point stop block fixing shaft b, the positioning wheel is located in the limiting hole b, the movable ball assembly and the fixed ball assembly are connected together with the convex plate assembly through the shaft and the stop ring, the emergency steel wire rope assembly and the bottom plate assembly are fixed together through the bolts, and the plug assembly and the bottom plate assembly are fixed together through the bolts by the cushion column.

[0006] The left lower connecting rod assembly and the right lower connecting rod assembly are consistent in structure and are in T-shaped type, and have three round holes.

[0007] The left side of the lock hook assembly is in inverted T-shaped type, the lower part of the left side of the middle stop body a is recessed in a groove, and the lower part is provided with a stop body b, and the lock hook assembly has a horizontal rod part, and the right end of the horizontal rod part is provided with an inverted hook.

[0008] The right upper connecting rod assembly is in L-shaped type, the upper part has three round holes in three directions, and the lower part has a recessed groove on the left side.

[0009] The release support is in U-shaped type, and the outer wall is fixed on the bottom plate assembly, and the release support comprises an upper cross beam and a lower cross beam, and the upper cross beam and the lower cross beam both have three round holes.

[0010] The bottom plate assembly is in F-shaped type.

[0011] The swing rod assembly is provided with a bearing, a connecting shaft a is arranged in the bearing, the outer side of the connecting shaft a is connected with the upper end of the left upper connecting rod assembly through the bearing, the inner side of the connecting shaft a is connected with the upper end of the push plate assembly through the bearing, the lower end of the left upper connecting rod assembly is provided with a bearing, a connecting shaft b is arranged on the bearing, one end of the connecting shaft b is fixed through the shaft check ring and the nut through the upper part of the left cutter arm assembly, the other end of the connecting shaft b is fixed through the nut through the bearing, a sleeve is arranged on the inner side of the bearing, the push plate assembly, the connecting rod assembly and the left lower connecting rod assembly are sequentially arranged from bottom to top, the push plate assembly, the connecting rod assembly and the left lower connecting rod assembly are provided with bearings, a bearing top sleeve is arranged between the push plate assembly and the connecting rod assembly, a sleeve is arranged between the connecting rod assembly and the left lower connecting rod assembly, the right end of the connecting rod assembly is provided with a bearing, the upper end of the right lower connecting rod assembly is provided with a bearing, a connecting rod a is fixed through the nut through the bearings of the connecting rod assembly and the right lower connecting rod assembly, a sleeve is arranged on the bearing of the connecting rod assembly, a bearing top copper sleeve is arranged below, the lower end of the right lower connecting rod assembly is provided with a bearing, a connecting shaft d is arranged on the bearing, one end of the connecting shaft d is fixed through the shaft check ring and the nut through the lower part of the right cutter arm assembly, a bearing is arranged in the middle of the right upper connecting rod assembly, the bearing passes through a connecting shaft e, the connecting shaft e is fixed through the nut through the bearing top copper sleeve, the sleeve and the right cutter arm assembly.

[0012] The technical scheme of the utility model has novel structure, is ingenious and simple in design, when someone is prying the door from both sides outside the car, the left and right anti-prying plate assemblies on the door cutter will simultaneously move outward, the left anti-prying plate assembly drives the left upper connecting rod assembly to rotate and push the lock hook assembly, so that the lock hook is lifted and the left and right cutter arm assemblies are closed, by pulling the steel wire on the emergency steel wire rope assembly, the emergency steel wire rope assembly drives the steel wire steel pull plate assembly to push the lock hook assembly, so that the lock hook is lifted, simultaneously drives the connecting rod assembly to rotate, so that the left and right cutter arms of the door cutter are closed, finally the function of opening the elevator door is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 、 2 , 3 is the structure schematic diagram of the utility model;

[0014] Figure 4 、 5 , 6 is the structure schematic diagram of the door cutter closing of the utility model;

[0015] Figure 7 、 8 , 9 is the structure schematic diagram of the door cutter opening of the utility model;

[0016] Figure 10 It is the structure schematic diagram of the utility model bottom plate assembly;

[0017] Figure 11 It is the structure schematic diagram of the utility model lock hook assembly;

[0018] Figure 12Is the structure schematic view of lower left connecting rod assembly and right connecting rod assembly of the utility model;

[0019] Figure 13 Is the structure schematic view of release support of the utility model;

[0020] Figure 14 Is the structure schematic view of rocker fixed shaft a and rocker fixed shaft b of the utility model;

[0021] Figure 15 Is the structure schematic view of rocker shaft sleeve a and rocker shaft sleeve b of the utility model;

[0022] Figure 16 Is the structure schematic view of right upper connecting rod assembly of the utility model. DETAILED DESCRIPTION

[0023] The utility model will be further explained in connection with the drawings and examples. EXAMPLE

[0024] As Figure 1 , 2A door knife device with a lock, as shown in figures 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16, includes a base plate assembly 1, a swing rod assembly 2, a protruding plate assembly 3, a plug assembly 4, a fixed ball assembly 5, a moving ball assembly 6, a pad post 7, a lower right connecting rod assembly 8, a connecting rod assembly 9, an emergency steel wire rope assembly 10, a right anti-pry plate assembly 11, a right knife arm assembly 12, a lower left connecting rod assembly 13, a left anti-pry plate assembly 14, an upper left connecting rod assembly 15, an upper right connecting rod assembly 16, a push plate assembly 17, a steel wire rope pull plate assembly 18, a lock hook assembly 19, and a left knife arm assembly 20. The upper left side of the base plate assembly 1 has a limiting hole a21, and below the limiting hole a21 is a rocker arm fixing shaft a22. One end of the rocker arm fixing shaft a22 passes through the base plate assembly 1 and is fixed by a nut. The other end of the rocker arm fixing shaft a22 passes through the bearing and is fixed by a nut. The bearing is fitted with a rocker arm bushing a. The rocker arm bushing a is located on the right middle part of the rocker arm assembly 2. The inner wall of the rocker arm assembly 2 is provided with a rocker arm limiting shaft. The rocker arm limiting shaft is provided with a limiting wheel a. The limiting wheel a is in the limiting hole a21. The rocker arm assembly 2 is trapezoidal, larger at the top and smaller at the bottom. The upper inner wall of the rocker arm assembly 2 is provided with a belt pin 23. The belt pin 23 is located in the notch on the top left side of the base plate assembly 1. The lower part of the rocker arm assembly 2 connects the upper left connecting rod assembly 15 and the push plate assembly 17 together through the connecting shaft a. The push plate assembly 17 is on the inner side, and the upper left connecting rod assembly 15 is on the outer side. The lower end of the upper left connecting rod assembly 15 is connected to the left cutter arm assembly 20. The left cutter arm assembly 2 The lower end of the 0 is connected to the lower end of the lower left connecting rod assembly 13. The left anti-pry plate assembly 14 is connected to the left end of the lower left connecting rod assembly 13 and the left end of the upper left connecting rod assembly 15 by a retaining ring. The left end of the lower left connecting rod assembly 13 is connected to the push plate assembly 17 through the connecting shaft c passing through the connecting rod assembly 9. The lower left connecting rod assembly 13 has an elliptical hole in the middle. The limiting shaft a on the left cutter arm assembly 20 is stuck in the elliptical hole. The connecting rod assembly 9 is at an angle greater than 90° and has round holes in the middle and at both ends. The connecting rod assembly 9 has a rocker arm fixing shaft b in the middle. One end of the rocker arm fixing shaft b passes through the base plate assembly 1 and is fixed by a nut. The other end of the rocker arm fixing shaft b passes through the bearing and is fixed by a nut. The bearing is covered with a rocker arm bushing b. The rocker arm bushing b is located outside the middle of the connecting rod assembly 9. The right end of the right arm assembly 12 is connected to the upper end of the lower right connecting rod assembly 8. The lower end of the right cutter arm assembly 12 is connected to the lower end of the lower right connecting rod assembly 8. The lower right connecting rod assembly 8 has an elliptical hole in the middle. The limiting shaft b on the right cutter arm assembly 12 is stuck in the elliptical hole. The lower end of the right anti-pry plate assembly 11 is connected to the right end of the lower right connecting rod assembly 8. The upper end of the right anti-pry plate assembly 11 is connected to the right end of the upper right connecting rod assembly 16. The upper part of the right cutter arm assembly 12 is connected to the middle part of the upper right connecting rod assembly 16. The middle and lower parts of the left side of the upper right connecting rod assembly 16 are provided with arc-shaped grooves. The lower end of the upper right connecting rod assembly 16 has a bearing connecting shaft a. The bearing connecting shaft a has a bearing. The bearing is located on the left side of the lower stop b26 of the locking hook assembly 19. The middle part of the locking hook assembly 19 is rotatably mounted on the base plate assembly 1 through the bearing.The left side of the lock hook assembly 19 is provided with a groove 25, the right side of the groove is provided with a stop body a 24, the right side of the stop body a 24 is an arc slope, the groove 25 is provided with a steel wire rope pull plate assembly 18, the steel wire rope pull plate assembly 18 has a clamping head arranged vertically, the clamping head is clamped in the groove 25, the lower end of the steel wire rope pull plate assembly 18 is provided with a connecting plate, the connecting plate is fixed with a steel wire rope, the steel wire rope is externally provided with a bushing, the steel wire rope passes through an emergency steel wire rope assembly 10, the emergency steel wire rope assembly 10 comprises a release support, the lower side of the release support is provided with a spring pad, the bushing passes through the release support and contacts the spring pad, the spring pad is fixed with a nut below, the two sides of the spring pad are provided with movable shafts, the movable shafts pass through the lower end of the release support, the movable shafts are externally provided with springs, the right end of the upper left connecting rod assembly 15 is internally provided with a bearing connecting shaft b, the bearing connecting shaft b is located at the right side of the stop body a 24, the bearing connecting shaft b is provided with a bearing, the upper left side of the back of the bottom plate assembly 1 is provided with a plug assembly 4 fixed through a cushion column 7, the upper right side of the bottom plate assembly 1 is provided with a baffle, the baffle has a hole, a cross slot head screw is arranged in the middle, the head of the cross slot head screw has a gasket, the gasket is provided with a spring below, the spring is sleeved on the cross slot head screw, the lower end of the cross slot head screw is fixed on the inner wall clamping plate of the convex plate assembly 3, the right side of the convex plate assembly 3 is provided with a bearing, the bearing is provided with a dead point stop block fixed shaft a, the dead point stop block fixed shaft passes through the bottom plate assembly 1 and connects a fixed ball assembly 5, the left side of the convex plate assembly 3 is provided with a dead point stop block fixed shaft b, the dead point stop block fixed shaft b passes through a limiting hole b and connects a movable ball assembly 6, the dead point stop block fixed shaft b is provided with a positioning wheel, the positioning wheel is located in the limiting hole b, the movable ball assembly 6 and the fixed ball assembly 5 are connected together through shaft stop rings and the convex plate assembly 3, the emergency steel wire rope assembly 10 and the bottom plate assembly 1 are fixed together through bolts, the plug assembly 4 and the bottom plate assembly 1 are fixed together through the cushion column 7 and bolts.

[0025] The left lower connecting rod assembly 13 and the right lower connecting rod assembly 8 are consistent in structure and are T-shaped, having three round holes.

[0026] The left side of the lock hook assembly 19 is inverted T-shaped, the middle stop body a 24 is provided with a groove 25 on the left side of the lower part of the outer wall, and the lower part is provided with a stop body b 26.

[0027] The right upper connecting rod assembly 16 is L-shaped, having three round holes in the upper part in three directions, and a recessed groove on the left side of the lower part.

[0028] The release support is U-shaped and is fixed on the bottom plate assembly 1, and comprises an upper cross beam and a lower cross beam, both of which have three round holes.

[0029] The bottom plate assembly 1 is F-shaped.

[0030] The swing rod assembly 2 is provided with a bearing, a connecting shaft a is arranged in the bearing, the outer side of the connecting shaft a is connected with the upper end of the left upper connecting rod assembly 15 through the bearing, the inner side of the connecting shaft a is connected with the upper end of the push plate assembly 17 through the bearing, the lower end of the left upper connecting rod assembly 15 is provided with a bearing, a connecting shaft b is arranged on the bearing, one end of the connecting shaft b is fixed through the upper part of the left cutter arm assembly 20 by a shaft stop washer and a nut, the other end of the connecting shaft b is fixed through the bearing by a nut, a sleeve is arranged on the inner side of the bearing, the connecting shaft c is sequentially arranged from bottom to top as the push plate assembly 17, the connecting rod assembly 9 and the left lower connecting rod assembly 13, the push plate assembly 17, the connecting rod assembly 9 and the left lower connecting rod assembly 13 are provided with bearings, a bearing top sleeve is arranged between the push plate assembly 17 and the connecting rod assembly 9, a sleeve is arranged between the connecting rod assembly 9 and the left lower connecting rod assembly 13, the right end of the connecting rod assembly 9 is provided with a bearing, the upper end of the right lower connecting rod assembly 8 is provided with a bearing, a connecting rod a is fixed through the bearings of the connecting rod assembly 9 and the right lower connecting rod assembly 8 by a nut, a sleeve is arranged on the bearing of the connecting rod assembly 9, a bearing top copper sleeve is arranged below, the lower end of the right lower connecting rod assembly 8 is provided with a bearing, a connecting shaft d is arranged on the bearing, one end of the connecting shaft d is fixed through the lower part of the right cutter arm assembly 12 by a shaft stop washer and a nut, a bearing is arranged in the middle of the right upper connecting rod assembly 16, a connecting shaft e is arranged through the bearing, the connecting shaft e is fixed with the right cutter arm assembly 12 through a nut by passing through the bearing top copper sleeve, the sleeve.

[0031] When in use, the door closer device is an inner clamping type door closer. When the elevator runs to the leveling area of the required floor, the elevator motor belt drives the swing lever assembly 2 to rotate, which drives the left upper connecting rod assembly 15 and the right upper connecting rod assembly 16 to rotate, thereby driving the left lower connecting rod assembly 13, the right lower connecting rod assembly 8 and the connecting rod assembly 9 to rotate together, and the left door arm assembly 20 and the right door arm assembly 12 are closed. The door arm of the door closer clamps the door ball of the door lock on the elevator hanging plate, so that the locking hook of the door lock is lifted, and at the same time, the left upper connecting rod assembly 15 rotates to push the locking hook assembly 19 mounted on the bottom plate assembly 1, so that the locking hook is lifted. The steel wire rope drives the hanging plate, and finally the elevator door is opened. Conversely, when the elevator door needs to be closed, the elevator motor reverses to drive the swing lever assembly 2 to move in the opposite direction, and the door arm is opened, and finally the locking hook of the door lock on the elevator hanging plate and the locking hook assembly 19 on the door closer back plate fall down respectively, and the door is completely closed under the driving of the weight assembly. The current is connected and locked, and the elevator car moves up and down. The anti-scraping door device on the door closer device has a left anti-scraping plate assembly 14 and a right anti-scraping plate assembly 11. When someone tries to open the door from both sides outside the car, the left and right anti-scraping plate assemblies on the door closer will move outward on both sides at the same time. The left anti-scraping plate assembly 14 drives the left upper connecting rod assembly 15 to rotate to push the locking hook assembly 19, so that the locking hook is lifted and the left and right door arm assemblies are closed. However, at the same time, the right anti-scraping plate assembly 11 will give a counterforce to prevent the locking hook assembly 19 from being lifted and the left and right door arms from being closed, thereby preventing the situation of artificially opening the door outside the car. When the elevator runs in the process of power failure or fault, the door closer cannot work normally, and the elevator maintenance personnel will pull the steel wire rope on the emergency steel wire rope assembly 10. The emergency steel wire rope assembly 10 drives the steel wire steel plate assembly 18 to push the locking hook assembly 19, so that the locking hook is lifted, and at the same time, drives the connecting rod assembly 9 to rotate, so that the left and right door arms of the door closer are closed, and finally the function of opening the elevator door is realized.

[0032] It should be understood that the above only describes the preferred embodiments of the present application, and is not intended to limit the technical solutions of the present application. For those skilled in the art, according to the above description, the technical solutions can be increased, replaced, transformed or improved within the spirit and principles of the present application, and all these increased, replaced, transformed or improved technical solutions should belong to the protection scope of the appended claims of the present application.

Claims

1. A door blade device of a door with a lock and anti-snatching, comprising a bottom plate assembly (1), a swing lever assembly (2), a convex plate assembly (3), a plug assembly (4), a fixed ball assembly (5), a movable ball assembly (6), a cushion column (7), a right lower connecting rod assembly (8), a connecting rod assembly (9), an emergency steel wire rope assembly (10), a right anti-snatching plate assembly (11), a right blade arm assembly (12), a left lower connecting rod assembly (13), a left anti-snatching plate assembly (14), a left upper connecting rod assembly (15), a right upper connecting rod assembly (16), a push plate assembly (17), a steel wire rope pull plate assembly (18), a lock hook assembly (19) and a left blade arm assembly (20), characterized in that: The bottom plate assembly (1) left upper part is equipped with limiting hole a (21), limiting hole a (21) is equipped with rocker fixed shaft a (22) below, one end of rocker fixed shaft a (22) passes through the nut fixed of bottom plate assembly (1), the other end of rocker fixed shaft a (22) passes through the nut fixed of bearing, bearing outer sleeve is equipped with rocker sleeve a, rocker sleeve a is equipped outside in the right middle part of swing lever assembly (2), swing lever assembly (2) inner wall is equipped with rocker limiting shaft, and the limiting wheel a is equipped on rocker limiting shaft, limiting wheel a is in limiting hole a (21), swing lever assembly (2) is trapezoidal, big up small down, swing lever assembly (2) upper inner wall is equipped with belt pin shaft (23), and belt pin shaft (23) is located in the top left side gap of bottom plate assembly (1), swing lever assembly (2) lower part is connected together through connecting shaft a of left upper connecting rod assembly (15) and push plate assembly (17), push plate assembly (17) is in the inside, left upper connecting rod assembly (15) is in the outside, left upper connecting rod assembly (15) lower end is connected with left knife arm assembly (20), left knife arm assembly (20) lower end is connected with left lower connecting rod assembly (13) lower end, left anti-snatching board assembly (14) is connected together with left lower connecting rod assembly (13) left end, left upper connecting rod assembly (15) left end through the shaft with baffle ring respectively, left lower connecting rod assembly (13) left end is connected with push plate assembly (17) through connecting shaft c passing through connecting rod assembly (9), the middle of left lower connecting rod assembly (13) is oval hole, and the limiting shaft a on left knife arm assembly (20) is clamped in oval hole, connecting rod assembly (9) is greater than 90 ° angle, and the middle and both ends are equipped with round hole, and the middle of connecting rod assembly (9) is equipped with rocker fixed shaft b, one end of rocker fixed shaft b passes through the nut fixed of bottom plate assembly (1), the other end of rocker fixed shaft b passes through the nut fixed of bearing, bearing outer sleeve is equipped with rocker sleeve b, and rocker sleeve b is equipped outside in the middle part of connecting rod assembly (9), and the right end of connecting rod assembly (9) is connected with the upper end of right lower connecting rod assembly (8), and the lower end of right knife arm assembly (12) is connected together with the lower end of right lower connecting rod assembly (8), and the middle of right lower connecting rod assembly (8) is oval hole, and the limiting shaft b on right knife arm assembly (12) is clamped in oval hole, and the lower end of right anti-snatching board assembly (11) is connected with the right end of right lower connecting rod assembly (8), and the upper end of right anti-snatching board assembly (11) is connected with the right end of right upper connecting rod assembly (16) respectively, and the upper part of right knife arm assembly (12) is connected with the middle part of right upper connecting rod assembly (16), and the left middle part and lower part of right upper connecting rod assembly (16) are equipped with arc-shaped groove, and the inside of right upper connecting rod assembly (16) lower end is equipped with bearing connecting shaft a, and the bearing is equipped on bearing connecting shaft a, and the bearing is located in the left side of lock hook assembly (19) lower part baffle body b (26), and the middle of lock hook assembly (19) is rotatably arranged on bottom plate assembly (1) through bearing, and the left side of lock hook assembly (19) is equipped with groove (25), and the right side of groove is equipped with baffle a (24), and the right side of baffle a (24) is arc slope, and the steel wire rope pull plate assembly (18) is arranged in groove (25), and the steel wire rope pull plate assembly (18) has vertically arranged clamping head, and the clamping head is clamped in groove (25),The lower end of the steel wire rope pull plate assembly (18) is provided with a connecting plate, the connecting plate is fixed with a steel wire rope, the steel wire rope is externally provided with a bushing, the steel wire rope passes through the emergency steel wire rope assembly (10), the emergency steel wire rope assembly (10) comprises a release support, the lower end of the release support is provided with a spring pad, the bushing passes through the release support and is in contact with the spring pad, the lower end of the spring pad is fixed with a nut, the two sides of the spring pad are provided with movable shafts, the movable shafts pass through the lower end of the release support, the movable shafts are externally provided with springs, the right end of the left upper connecting rod assembly (15) is internally provided with a bearing connecting shaft b, the bearing connecting shaft b is located on the right side of the stop body a (24), the bearing connecting shaft b is provided with a bearing, the upper left side of the back of the bottom plate assembly (1) is provided with a plug assembly (4) fixed through a cushion column (7), the upper right side of the bottom plate assembly (1) is provided with a baffle, the baffle is provided with a hole, a cross groove head screw is arranged in the hole, the head of the cross groove head screw is provided with a gasket, the gasket is provided with a spring below, the spring is sleeved on the cross groove head screw, the lower end of the cross groove head screw is fixed on the inner wall clamping plate of the tab plate assembly (3), the right side of the tab plate assembly (3) is provided with a bearing, the bearing is provided with a dead point stop block fixed shaft a, the dead point stop block fixed shaft passes through the bottom plate assembly (1) and connects the fixed ball assembly (5), the left side of the tab plate assembly (3) is provided with a dead point stop block fixed shaft b, the dead point stop block fixed shaft b passes through a limiting hole b and connects the movable ball assembly (6), the dead point stop block fixed shaft b is provided with a positioning wheel, the positioning wheel is located in the limiting hole b, the movable ball assembly (6) and the fixed ball assembly (5) are connected together with the tab plate assembly (3) through shaft stop rings, the emergency steel wire rope assembly (10) and the bottom plate assembly (1) are fixed together through bolts, the plug assembly (4) and the bottom plate assembly (1) are fixed together through bolts by the cushion column (7).

2. The door closer device according to claim 1, wherein: The left lower connecting rod assembly (13) and the right lower connecting rod assembly (8) are consistent in structure, in T shape, and have three round holes.

3. The door closer device of claim 1, wherein: The left side of the locking hook assembly (19) is in inverted T shape, the left side lower outer wall of the middle blocking body a (24) is recessed with a groove (25), the lower part is provided with a blocking body b (26), and the side of the locking hook assembly (19) is a horizontal rod part, and the right end of the horizontal rod part is provided with an inverted hook.

4. The door closer device of claim 1, wherein: The right upper connecting rod assembly (16) is in L shape, the upper part has three round holes in three directions, and the lower left side has a recessed groove.

5. The door closer device of claim 1, wherein: The release bracket is in U shape, the outer wall is fixed on the bottom plate assembly (1), and the release bracket comprises an upper horizontal beam and a lower horizontal beam.

6. The door closer device of claim 1, wherein: The bottom plate assembly (1) is in F shape.

7. The door closer device of claim 1, wherein: The swing rod assembly (2) is provided with a bearing, a connecting shaft a is arranged in the bearing, the outer side of the connecting shaft a penetrates through the bearing and is connected with the upper end of the left upper connecting rod assembly (15), the inner side of the connecting shaft a penetrates through the bearing and is connected with the upper end of the push plate assembly (17), the lower end of the left upper connecting rod assembly (15) is provided with a bearing, a connecting shaft b is arranged on the bearing, one end of the connecting shaft b penetrates through the upper part of the left cutter arm assembly (20) and is fixed through a shaft blocking ring and a nut, the other end of the connecting shaft b penetrates through the bearing and is fixed through a nut, a sleeve is arranged on the inner side of the bearing, and the connecting shaft c is sequentially the push plate assembly (17), the connecting rod assembly (9) and the left lower connecting rod assembly (13) from bottom to top. The push plate assembly (17), the connecting rod assembly (9) and the left lower connecting rod assembly (13) are provided with bearings, a bearing top sleeve is arranged between the push plate assembly (17) and the connecting rod assembly (9), a sleeve is arranged between the connecting rod assembly (9) and the left lower connecting rod assembly (13), the right end of the connecting rod assembly (9) is provided with a bearing, the upper end of the right lower connecting rod assembly (8) is provided with a bearing, a connecting rod a penetrates through the bearings of the connecting rod assembly (9) and the right lower connecting rod assembly (8) and is fixed through a nut, a sleeve is arranged on the bearing of the connecting rod assembly (9) and a bearing top copper sleeve is arranged below, the lower end of the right lower connecting rod assembly (8) is provided with a bearing, a connecting shaft d is arranged on the bearing, one end of the connecting shaft d penetrates through the lower part of the right cutter arm assembly (12) and is fixed through a shaft blocking ring and a nut, a bearing is arranged in the middle part of the right upper connecting rod assembly (16), a connecting shaft e penetrates through the bearing, and the connecting shaft e is fixed through a nut with the right cutter arm assembly (12) through the bearing top copper sleeve and the sleeve.