Hoistway elevator safety door structure

Abstract

The application relates to the elevator technical field, in particular to a shaft elevator safety protection door structure, which comprises a door frame, the inside of the door frame is provided with symmetrically-distributed protection doors, one side of the protection doors is provided with a closing mechanism, the other side of the protection doors is provided with a protection plate, the protection plate is fixed with symmetrically-distributed supporting rods, the supporting rods penetrate through the protection doors and are slidably connected with the protection doors, the side, away from the protection plate, of the supporting rods is fixed with a baffle, the baffle is connected with the protection doors through first elastic components, a locking mechanism is arranged between the protection doors and the door frame and is used for secondarily fixing the protection doors when the protection plate is subjected to pressure; when the protection plate is impacted, a plurality of limiting rods on the protection doors can automatically insert into limiting grooves on the inner wall of the door frame, the limiting grooves secondarily fix the protection doors through the limiting rods, the stability of the protection doors can be effectively improved, and the impact resistance of the protection doors is improved.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically a safety protection door structure for a shaft elevator. Background Technology

[0002] Safety doors for elevator shafts are crucial equipment for ensuring the personal safety of construction workers on different floors during the operation of construction elevators. Their main function is to prevent people on different floors from accidentally entering the elevator shaft, thereby reducing the risk of falls from heights and objects being thrown from heights.

[0003] In the existing technology, the safety protection door of the hoistway mainly consists of a door frame and a door body. After the door body is closed, the staff fixes the two door bodies with a bolt. However, the protection performance of this kind of door is poor. The bolt alone cannot effectively fix the two door bodies. Moreover, when the door is subjected to external impact, the door bodies are prone to shaking, resulting in poor stability. Summary of the Invention

[0004] The purpose of this invention is to provide a safety protection door structure for a hoistway to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A safety guard door structure for a hoist includes a door frame. The door frame contains symmetrically distributed guard doors. Rotating rods are fixed to the top and bottom of each guard door, and these rods are rotatably connected to the inner wall of the door frame. A closing mechanism is provided on one side of each guard door to secure the two guard doors. A guard plate is provided on the other side of each guard door, and symmetrically distributed support rods are fixed to the guard plate. These support rods pass through the guard doors and are slidably connected to them. A baffle is fixed to the side of each support rod away from the guard plate, and the baffle is connected to the guard door via a first elastic component. A locking mechanism is provided between the guard doors and the door frame. When the guard plate is subjected to pressure, the locking mechanism provides secondary fixation to the guard doors.

[0007] Preferably, the closing mechanism includes a limiting ring that is fixedly connected to the protective door and is symmetrically distributed. An arc-shaped baffle passes through the inside of the limiting ring and is slidably connected to the limiting ring. One of the arc-shaped baffles is fixed with a plurality of teeth that are circumferentially distributed. The teeth mesh with a gear, which is rotatably connected to the protective door. The protective door is provided with a rotating component, which is used to drive the gear to rotate.

[0008] Preferably, the rotating assembly includes a rack that meshes with a gear, a support block is fixed on the protective door, a second elastic component is fixed on the surface of the support block, the other end of the second elastic component is fixedly connected to the rack, a sliding rod is fixed on the surface of the support block, the sliding rod extends into the rack and slides in connection with the rack, and a fixing component is provided on the protective door for fixing the rack.

[0009] Preferably, the fixing component includes a fixing plate that is fixedly connected to the protective door, a pin passing through the fixing plate, one end of the pin abutting against the side wall of the rack, and the other end of the pin being connected to the fixing plate through a third elastic component. The side wall of the rack is provided with a pin groove that matches the pin.

[0010] Preferably, the surface of the protective door is provided with an arc-shaped groove, and an arc-shaped slider that is adapted to the arc-shaped groove is fixed on the outside of the arc-shaped baffle. The arc-shaped slider is located inside the arc-shaped groove and is slidably connected to the arc-shaped groove.

[0011] Preferably, the locking mechanism includes limiting blocks symmetrically distributed on both sides of the baffle, the limiting blocks being fixedly connected to the protective door, a limiting rod penetrating through the limiting block, the limiting rod being slidably connected to the limiting block, a self-locking component inside the limiting block for fixing the limiting rod, a movable plate fixed outside the limiting rod, the movable plate being connected to the limiting block via a fourth elastic component, and multiple limiting grooves adapted to the limiting rod being provided on the side wall of the door frame.

[0012] Preferably, the self-locking assembly includes a pull rod that penetrates the side wall of the limiting block. The side wall of the limiting rod is provided with a fixing groove that matches the pull rod. One end of the pull rod is located inside the fixing groove, and the other end of the pull rod is fixed with a movable plate. The movable plate is connected to the side wall of the limiting block through a fifth elastic component. A guide rod is fixed to the outside of the protective door. A guide groove is passed through the inside of the guide rod. A traction rope is fixedly connected to the movable plate. The traction rope passes through the guide groove and is fixedly connected to the baffle.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can quickly fix two protective doors by setting two arc-shaped baffles, and the stability is strong. At the same time, the protective plate is used to buffer the protective door, thereby improving the impact resistance of the protective door. When the protective plate is impacted, multiple limiting rods on the protective door will automatically insert into the limiting groove on the inner wall of the door frame. The limiting groove fixes the protective door a second time through the limiting rods, which can effectively improve the stability of the protective door and thus improve its impact resistance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of one side of the protective door in an embodiment of the present invention.

[0015] Figure 2This is a schematic diagram of the structure on the other side of the protective door in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the gear and rack connection structure in an embodiment of the present invention.

[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 5 for Figure 1 Enlarged view of section B in the middle.

[0019] Figure 6 This is a cross-sectional view of the internal structure of the limiting block in an embodiment of the present invention.

[0020] In the diagram: 1-Door frame; 2-Protective door; 3-Closing mechanism; 31-Limiting ring; 32-Arc-shaped baffle; 33-Arc-shaped groove; 34-Arc-shaped slider; 35-Tooth; 36-Gear; 37-Rack; 38-Second elastic component; 39-Slide rod; 310-Support block; 311-Fixing plate; 312-Third elastic component; 313-Pin rod; 314-Pin groove; 4-Baffle; 5-Locking mechanism; 51-Limiting block; 52-Limiting rod; 53-Moving plate; 54-Fifth elastic component; 55-Pull rod; 56-Fourth elastic component; 57-Moving plate; 58-Limiting groove; 59-Fixing groove; 510-Guide rod; 511-Traction rope; 6-Support rod; 7-First elastic component; 8-Protective plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0023] In one embodiment, see Figure 1 , Figure 2 and Figure 5A safety guard door structure for a hoist includes a door frame 1. The door frame 1 contains symmetrically distributed guard doors 2. Rotating rods are fixed to the top and bottom of each guard door 2, and these rods are rotatably connected to the inner wall of the door frame 1. A closing mechanism 3 is provided on one side of each guard door 2 to secure the two guard doors 2. A guard plate 8 is provided on the other side of each guard door 2. Symmetrically distributed support rods 6 are fixed to the guard plate 8, passing through and slidably connecting to the guard doors 2. A baffle 4 is fixed to the side of the support rod 6 away from the guard plate 8, and the baffle 4 is connected to the guard door 2 via a first elastic component 7. A locking mechanism 5 is provided between the guard door 2 and the door frame 1. When the guard plate 8 is subjected to pressure, the locking mechanism 5 provides secondary fixation to the guard door 2.

[0024] In this embodiment, during use, the door frame 1 can be fixed to the shaft entrance with bolts. When workers enter the shaft, the protective door 2 is closed, and the two protective doors 2 are initially fixed by the closing mechanism 3, thereby preventing external personnel or objects from entering the shaft. The closing mechanism 3 facilitates the quick fixing of the two protective doors 2 by workers. The protective door 2 is provided with a protective plate 8 on its outer side. When the protective door 2 is impacted by the outside, the impact force will first act on the surface of the protective plate 8. The protective plate 8 is impacted and drives the baffle 4 to move through the support rod 6. The baffle 4 pulls the first elastic component 7, which can be a spring. The baffle 4 and the support rod 6 can play a buffering role on the protective plate 8, thereby buffering the protective door 2 and effectively improving the impact resistance of the protective door 2, thus improving the protective function. In addition, when the protective plate 8 is impacted by the outside, the locking mechanism 5 will fix the protective door 2 a second time, thereby improving the stability between the protective door 2 and the door frame 1, further improving the protective function of the protective door 2.

[0025] Please see Figure 1 and Figure 4 The closing mechanism 3 includes a limiting ring 31 that is fixedly connected to the protective door 2 and is symmetrically distributed. An arc-shaped baffle 32 passes through the inside of the limiting ring 31 and is slidably connected to the limiting ring 31. One of the arc-shaped baffles 32 is fixed with a plurality of teeth 35 that are circumferentially distributed. The teeth 35 mesh with a gear 36. The gear 36 is rotatably connected to the protective door 2. The protective door 2 is provided with a rotating component, which is used to drive the gear 36 to rotate.

[0026] After the protective door 2 is closed, the operator drives the gear 36 to rotate through the rotating component. The meshing of the gear 36 with the teeth 35 drives the arc-shaped baffle 32 to rotate, so that the arc-shaped baffle 32 enters into one of the limiting rings 31 on the other protective door 2. As the arc-shaped baffle 32 moves, it also squeezes the arc-shaped baffle 32 on the other protective door 2, so that the arc-shaped baffle 32 on the other protective door 2 enters into the limiting ring 31 on that protective door 2. The setting of two arc-shaped baffles 32 makes it convenient for the operator to quickly fix the two protective doors 2, and the stability is strong.

[0027] Please see Figure 3 The rotating assembly includes a rack 37 that meshes with the gear 36. A support block 310 is fixed on the protective door 2. A second elastic member 38 is fixed on the surface of the support block 310. The other end of the second elastic member 38 is fixedly connected to the rack 37. A sliding rod 39 is fixed on the surface of the support block 310. The sliding rod 39 extends into the rack 37 and is slidably connected to the rack 37. A fixing member is provided on the protective door 2 for fixing the rack 37.

[0028] After the protective door 2 is closed, the operator pushes the rack 37 downwards. The meshing of the rack 37 with the gear 36 drives the gear 36 to rotate, which in turn drives the arc-shaped baffle 32 to rotate. When the arc-shaped baffle 32 enters one of the limiting rings 31 on the other protective door 2, the fixing component on the protective door 2 automatically fixes the rack 37, thus fixing the rack 37. The rack 37, through the gear 36, fixes the arc-shaped baffle 32, effectively improving the stability of the arc-shaped baffle 32. When it is necessary to open the protective door 2, the fixing component is released from the rack 37. The rack 37 automatically resets under the action of the second elastic component 38, which in turn drives the gear 36 to automatically reset, thus allowing the arc-shaped baffle 32 to return to its original position. The structure is simple and allows the operator to quickly open the protective door 2. The second elastic component 38 can be a spring, and the slide bar 39 can limit the movement of the rack 37, effectively improving the stability of the rack 37 during movement.

[0029] Please see Figure 3 The fixing component includes a fixing plate 311 fixedly connected to the protective door 2. A pin 313 passes through the fixing plate 311. One end of the pin 313 abuts against the side wall of the rack 37, and the other end of the pin 313 is connected to the fixing plate 311 through a third elastic component 312. The side wall of the rack 37 is provided with a pin groove 314 that matches the pin 313.

[0030] When the arc-shaped baffle 32 enters into one of the limiting rings 31 on another protective door 2, the pin 313 is aligned with the pin groove 314 on the side wall of the rack 37. At this time, under the action of the third elastic component 312, the pin 313 automatically enters into the pin groove 314, thereby fixing the rack 37. The third elastic component 312 can be a spring.

[0031] Please see Figure 4 The protective door 2 is provided with an arc-shaped groove 33 on its surface. The arc-shaped baffle 32 is fixed with an arc-shaped slider 34 that is adapted to the arc-shaped groove 33. The arc-shaped slider 34 is located inside the arc-shaped groove 33 and is slidably connected to the arc-shaped groove 33.

[0032] The arc-shaped groove 33, through the arc-shaped slider 34, can limit the arc-shaped stop 32, effectively improving the stability of the arc-shaped stop 32 when it moves.

[0033] Please see Figure 1 , Figure 5 and Figure 6 The locking mechanism 5 includes limiting blocks 51 symmetrically distributed on both sides of the baffle 4. The limiting blocks 51 are fixedly connected to the protective door 2. A limiting rod 52 passes through the inside of the limiting block 51. The limiting rod 52 is slidably connected to the limiting block 51. A self-locking component is provided inside the limiting block 51 for fixing the limiting rod 52. A movable plate 57 is fixed outside the limiting rod 52. The movable plate 57 is connected to the limiting block 51 through a fourth elastic component 56. A plurality of limiting grooves 58 adapted to the limiting rod 52 are provided on the side wall of the door frame 1.

[0034] When the protective plate 8 is impacted by the outside, the self-locking component automatically releases the fixation of the limiting rod 52. Under the action of the movable plate 57 and the fourth elastic component 56, the limiting rod 52 automatically enters the limiting groove 58 on the inner wall of the door frame 1. The limiting groove 58 can fix the protective door 2 through the pin 313, thereby improving the stability of the protective door 2 and effectively improving the impact resistance of the protective door 2. The fourth elastic component 56 can be a spring.

[0035] Please see Figure 5 and Figure 6 The self-locking assembly includes a pull rod 55 that penetrates the side wall of the limiting block 51. The side wall of the limiting rod 52 is provided with a fixing groove 59 that is adapted to the pull rod 55. One end of the pull rod 55 is located inside the fixing groove 59, and the other end of the pull rod 55 is fixed with a moving plate 53. The moving plate 53 is connected to the side wall of the limiting block 51 through a fifth elastic component 54. A guide rod 510 is fixed to the outside of the protective door 2. A guide groove is penetrated inside the guide rod 510. A traction rope 511 is fixedly connected to the moving plate 53. The traction rope 511 passes through the guide groove and is fixedly connected to the baffle 4.

[0036] Initially, under the action of the movable plate 53 and the fifth elastic component 54, the end of the pull rod 55 is located inside the fixed groove 59. The fifth elastic component 54 can be a spring. The pull rod 55 fixes the limiting rod 52, thereby preventing the limiting rod 52 from entering the limiting groove 58 on the inner wall of the door frame 1, thus facilitating the closure of the protective door 2 by the staff. When the protective plate 8 is impacted by the outside, the protective plate 8 drives the baffle 4 to move through the support rod 6. Under the guidance of the guide rod 510, the baffle 4 pulls the movable plate 53 through the traction rope 511. The movable plate 53 drives the pull rod 55 to move outside the fixed groove 59. Without the limitation of the pull rod 55, the limiting rod 52 automatically resets and enters the limiting groove 58, thereby improving the fixing effect on the protective door 2.

[0037] Working principle: During use, the operator pushes the rack 37 downwards. The meshing of the rack 37 with the gear 36 drives the gear 36 to rotate, which in turn drives the arc-shaped stop 32 to rotate. This causes the arc-shaped stop 32 to enter one of the limiting rings 31 on the other protective door 2. Simultaneously, the arc-shaped stop 32 moves and also presses against the arc-shaped stop 32 on the other protective door 2, causing it to enter the limiting ring 31 on that door. The two arc-shaped stops 32 facilitate quick and stable fixing of the two protective doors 2. When the arc-shaped stop 32 enters one of the limiting rings 31 on the other protective door 2, the pin 313 automatically enters the pin groove 314, thereby engaging the rack. 37 plays a fixing role. The rack 37 fixes the arc-shaped baffle 32 through the gear 36, thereby effectively improving the stability of the arc-shaped baffle 32. When the protective door 2 is hit by an external impact, the external impact force will first act on the surface of the protective plate 8. The protective plate 8 drives the baffle 4 to move through the support rod 6. Under the guidance of the guide rod 510, the baffle 4 pulls the moving plate 53 through the traction rope 511. The moving plate 53 drives the pull rod 55 to move to the outside of the fixed groove 59. Without the limit of the pull rod 55, the limit rod 52 automatically resets and enters the limit groove 58. The limit groove 58 can play a secondary fixing role for the protective door 2 through the pin 313, thereby improving the stability between the protective door 2 and the door frame 1, and further improving the protective function of the protective door 2.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A safety door structure for a hoistway, comprising a door frame; characterized in that, The door frame is equipped with symmetrically distributed protective doors. Rotating rods are fixed at the top and bottom of the protective doors and are rotatably connected to the inner wall of the door frame. A closing mechanism is provided on one side of the protective door to fix the two protective doors. A protective plate is provided on the other side of the protective door. The protective plate is fixed with symmetrically distributed support rods. The support rods pass through the protective door and are slidably connected to the protective door. A baffle is fixed on the side of the support rod away from the protective plate. The baffle is connected to the protective door through a first elastic component. A locking mechanism is provided between the protective door and the door frame. When the protective plate is subjected to pressure, the locking mechanism is used to fix the protective door a second time. The closing mechanism includes symmetrically distributed limiting rings fixedly connected to the protective door. An arc-shaped baffle passes through the limiting ring and is slidably connected to the limiting ring. One of the arc-shaped baffles has multiple circumferentially distributed teeth that mesh with a gear. The gear is rotatably connected to the protective door. The protective door is equipped with a rotating assembly that drives the gear to rotate. The locking mechanism includes symmetrically distributed limiting blocks on both sides of the baffle. The limiting blocks are fixedly connected to the protective door. A limiting rod passes through the limiting block and is slidably connected to the limiting block. A self-locking assembly is provided inside the limiting block for... The limiting rod is fixed with a movable plate on its exterior. The movable plate is connected to the limiting block via a fourth elastic component. The side wall of the door frame has multiple limiting grooves that are adapted to the limiting rod. The self-locking assembly includes a pull rod that penetrates the side wall of the limiting block. The side wall of the limiting rod has a fixing groove that is adapted to the pull rod. One end of the pull rod is located inside the fixing groove, and the other end of the pull rod is fixed with a movable plate. The movable plate is connected to the side wall of the limiting block via a fifth elastic component. A guide rod is fixed to the exterior of the protective door. A guide groove passes through the guide rod. A traction rope is fixedly connected to the movable plate. The traction rope passes through the guide groove and is fixedly connected to the baffle.

2. The safety protection door structure for a hoist as described in claim 1, characterized in that, The rotating assembly includes a rack that meshes with a gear. A support block is fixed on the protective door. A second elastic component is fixed on the surface of the support block. The other end of the second elastic component is fixedly connected to the rack. A sliding rod is fixed on the surface of the support block. The sliding rod extends into the rack and is slidably connected to the rack. A fixing component is provided on the protective door for fixing the rack.

3. The safety protection door structure for a hoist as described in claim 2, characterized in that, The fixing component includes a fixing plate that is fixedly connected to the protective door. A pin passes through the fixing plate. One end of the pin abuts against the side wall of the rack, and the other end of the pin is connected to the fixing plate through a third elastic component. The side wall of the rack is provided with a pin groove that matches the pin.

4. A safety protection door structure for a hoist as described in any one of claims 2-3, characterized in that, The protective door surface is provided with an arc-shaped groove, and an arc-shaped slider that matches the arc-shaped groove is fixed to the outside of the arc-shaped baffle. The arc-shaped slider is located inside the arc-shaped groove and is slidably connected to the arc-shaped groove.

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