Safety protection door structure of hoistway elevator

Abstract

The invention relates to the technical field of lifts, in particular to a hoistway lift safety protection door structure which comprises a door frame, protection doors distributed symmetrically are arranged in the door frame, a closing mechanism is arranged on one side of each protection door, a protection plate is arranged on the other side of each protection door, and supporting rods distributed symmetrically are fixed to the protection plates. The supporting rod penetrates through the protective door and is in sliding connection with the protective door, a baffle is fixed to the side, away from the protective plate, of the supporting rod, the baffle is connected with the protective door through a first elastic component, a locking mechanism is arranged between the protective door and the door frame, and when the protective plate is pressed, the locking mechanism is used for conducting secondary fixing on the protective door; when the protection plate is impacted, the multiple limiting rods on the protection door can be automatically inserted into the limiting grooves in the inner wall of the door frame, the limiting grooves conduct secondary fixing on the protection door through the limiting rods, the stability performance of the protection door can be effectively improved, and then the impact resistance performance of the protection door is improved.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to a safety protection door structure for a hoistway elevator. Background Art

[0002] The shaft elevator protection door is an important equipment to ensure the personal safety of construction workers on the floor during the operation of the construction elevator. Its main function is to prevent people on the floor from accidentally entering the elevator shaft and reduce the risk of falling from heights and throwing objects.

[0003] In the prior art, the safety protection door of the shaft elevator is mainly composed of a door frame and a door body. After the door body is closed, the staff fixes the two door bodies through a latch, but the protection performance of this protection door is poor. The two door bodies cannot be effectively fixed only by the latch, and when the protection door is subjected to external impact, shaking is likely to occur between the door bodies, and the stability performance is poor. Summary of the invention

[0004] The object of the present invention is to provide a hoistway elevator safety protection door structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A safety protection door structure for a shaft elevator comprises a door frame, wherein symmetrically distributed protection doors are arranged inside the door frame, rotating rods are fixed to the top and bottom of the protection doors, the rotating rods are rotatably connected to the inner wall of the door frame, a closing mechanism is provided on one side of the protection door, the closing mechanism is used to fix the two protection doors, a protection plate is provided on the other side of the protection door, the protection plate is fixed with symmetrically distributed support rods, the support rods pass through the protection door and are slidably connected to the protection door, a baffle is fixed on the side of the support rod away from the protection plate, the baffle is connected to the protection door through a first elastic component, a locking mechanism is provided between the protection door and the door frame, when the protection plate is subjected to pressure, the locking mechanism is used to perform secondary fixation on the protection door.

[0007] Preferably: the closing mechanism includes a limit ring fixedly connected to the protective door and symmetrically distributed, an arc-shaped retaining frame passes through the inside of the limit ring, the arc-shaped retaining frame is slidably connected to the limit ring, one of the arc-shaped retaining frames is fixed with a plurality of teeth distributed in a circle, the teeth are meshed with gears, the gears are rotatably connected to the protective door, and a rotating assembly is provided on the protective door, which is used to drive the gears to rotate.

[0008] Preferably: the rotating assembly includes a rack meshing with the 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 interior of the rack and is slidably connected to the rack, and a fixing component is provided on the protective door, which is used to fix the rack.

[0009] Preferably: the fixing component includes a fixing plate fixedly connected to the protective door, a pin rod passes through the fixing plate, one end of the pin rod is connected to the side wall of the rack in abutment with the other end of the pin rod is connected to the fixing plate through a third elastic component, and a pin groove matching the pin rod is provided on the side wall of the rack.

[0010] Preferably, the surfaces of the protective doors are provided with arc-shaped grooves, the outsides of the arc-shaped retaining frames are fixed with arc-shaped sliding blocks adapted to the arc-shaped grooves, and the arc-shaped sliding blocks are located inside the arc-shaped grooves and are slidably connected to the arc-shaped grooves.

[0011] Preferably: the locking mechanism includes limit blocks which are arranged on both sides of the baffle and are symmetrically distributed, the limit blocks are fixedly connected to the protective door, a limit rod passes through the limit block, the limit rod is slidably connected to the limit block, a self-locking component is provided inside the limit block, the self-locking component is used to fix the limit rod, a movable plate is fixed to the outside of the limit rod, the movable plate is connected to the limit block through a fourth elastic component, and a plurality of limit grooves which are compatible with the limit rod are provided on the side walls of the door frame.

[0012] Preferably: the self-locking component includes a pull rod passing through the side wall of the limit block, the side wall of the limit rod is provided with a fixing groove adapted to the pull rod, one end of the pull rod is located inside the fixing groove, and a movable plate is fixed to the other end of the pull rod, and the movable plate is connected to the side wall of the limit block through a fifth elastic component, a guide rod is fixed to the outside of the protective door, a guide groove passes through the inside of the guide rod, the movable plate is fixedly connected to a traction rope, 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 realize the rapid fixation of two protective doors through the setting of two arc-shaped retaining frames, and has strong stability. 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, the multiple limit rods on the protective door will automatically insert into the limit groove on the inner wall of the door frame. The limit groove performs secondary fixation of the protective door through the limit rod, which can effectively improve the stability of the protective door, thereby improving the impact resistance of the protective door. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0016] Figure 3 Schematic diagram of the connection structure between the gear and the rack 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 point B in the middle.

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

[0020] In the figure: 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-teeth; 36-gear; 37-rack; 38-second elastic component; 39-slide rod; 310-support block; 311-fixed plate; 312-third elastic component; 313-pin rod; 314-pin groove; 4-baffle; 5-locking mechanism; 51-limiting block; 52-limiting rod; 53-movable plate; 54-fifth elastic component; 55-pull rod; 56-fourth elastic component; 57-movable plate; 58-limiting groove; 59-fixed groove; 510-guide rod; 511-traction rope; 6-support rod; 7-first elastic component; 8-protective plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] In one embodiment, see Figure 1 , Figure 2 and Figure 5A safety protection door structure for a shaft elevator comprises a door frame 1, wherein symmetrically distributed protection doors 2 are arranged inside the door frame 1, and rotating rods are fixed to the top and bottom of the protection doors 2, and the rotating rods are rotatably connected to the inner wall of the door frame 1, and a closing mechanism 3 is arranged on one side of the protection door 2, and the closing mechanism 3 is used to fix the two protection doors 2, and a protection plate 8 is arranged on the other side of the protection door 2, and the protection plate 8 is fixed with symmetrically distributed support rods 6, and the support rods 6 penetrate the protection doors 2 and are slidably connected to the protection doors 2, and a baffle 4 is fixed on the side of the support rod 6 away from the protection plate 8, and the baffle 4 is connected to the protection door 2 through a first elastic component 7, wherein a locking mechanism 5 is arranged between the protection door 2 and the door frame 1, and when the protection plate 8 is subjected to pressure, the locking mechanism 5 is used to perform secondary fixation on the protection door 2.

[0024] The locking mechanism 3 is used to lock the two protective doors 2 so that the protective door 2 is not blocked and the protective door 2 is not locked.

[0025] See also Figure 1 and Figure 4 The closing mechanism 3 includes a limit ring 31 fixedly connected to the protective door 2 and symmetrically distributed, an arc-shaped retaining frame 32 runs through the limit ring 31, and the arc-shaped retaining frame 32 is slidably connected to the limit ring 31, and a plurality of teeth 35 distributed in a circumference are fixed on one of the arc-shaped retaining frames 32, and the teeth 35 are meshed with a gear 36, and the gear 36 is rotatably connected to the protective door 2, and a rotating component is provided on the protective door 2, and the rotating component is used to drive the gear 36 to rotate;

[0026] When the protective door 2 is closed, the staff drives the gear 36 to rotate through the rotating assembly, and drives the arc-shaped retaining frame 32 to rotate through the engagement of the gear 36 with the teeth 35, so that the arc-shaped retaining frame 32 enters into one of the limiting rings 31 on the other protective door 2, and while the arc-shaped retaining frame 32 moves, it also squeezes the arc-shaped retaining frame 32 on the other protective door 2, so that the arc-shaped retaining frame 32 on the other protective door 2 enters into the limiting ring 31 on the protective door 2. The setting of the two arc-shaped retaining frames 32 is convenient for the staff to quickly fix the two protective doors 2, and the stability performance is strong.

[0027] See also Figure 3 , the rotating assembly includes a rack 37 meshing with the gear 36, a support block 310 is fixed on the protective door 2, a second elastic component 38 is fixed on the surface of the support block 310, the other end of the second elastic component 38 is fixedly connected to the rack 37, a slide bar 39 is fixed on the surface of the support block 310, the slide bar 39 extends into the interior of the rack 37 and is slidably connected to the rack 37, and a fixing component is provided on the protective door 2, and the fixing component is used to fix the rack 37;

[0028] When the protective door 2 is closed, the staff pushes the rack 37 downward, and the gear 36 is driven to rotate by the meshing of the rack 37 and the gear 36, thereby driving the arc-shaped retaining frame 32 to rotate. When the arc-shaped retaining frame 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, thereby fixing the rack 37. The rack 37 fixes the arc-shaped retaining frame 32 through the gear 36, effectively improving the stability of the arc-shaped retaining frame 32. When the protective door 2 needs to be opened, the fixing component on the rack 37 is released, and the rack 37 is automatically reset under the action of the second elastic component 38, thereby driving the gear 36 to automatically reset, so that the arc-shaped retaining frame 32 returns to its original position. The structure is simple, which is convenient for the staff to quickly open the protective door 2. The second elastic component 38 can be a spring, and the slide bar 39 can limit the rack 37, effectively improving the stability of the rack 37 when it moves.

[0029] See also Figure 3 The fixing component includes a fixing plate 311 fixedly connected to the protective door 2, a pin rod 313 runs through the fixing plate 311, one end of the pin rod 313 is in contact with the side wall of the rack 37, and the other end of the pin rod 313 is connected to the fixing plate 311 through a third elastic component 312, and a pin groove 314 adapted to the pin rod 313 is provided on the side wall of the rack 37;

[0030] When the arc-shaped retaining frame 32 enters into one of the limiting rings 31 on the other protective door 2, the pin rod 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 rod 313 automatically enters into the pin groove 314, thereby fixing the rack 37, wherein the third elastic component 312 can be a spring.

[0031] See also Figure 4 The surface of the protective door 2 is provided with an arc groove 33, and the outside of the arc retaining frame 32 is fixed with an arc slider 34 adapted to the arc groove 33, and the arc slider 34 is located inside the arc groove 33 and is slidably connected to the arc groove 33;

[0032] The arc groove 33 can limit the arc retaining frame 32 through the arc sliding block 34, thereby effectively improving the stability of the arc retaining frame 32 when moving.

[0033] See also Figure 1 , Figure 5 and Figure 6 The locking mechanism 5 includes limit blocks 51 arranged on both sides of the baffle plate 4 and symmetrically distributed, the limit blocks 51 are fixedly connected to the protective door 2, a limit rod 52 runs through the limit block 51, the limit rod 52 is slidably connected to the limit block 51, wherein a self-locking component is provided inside the limit block 51, and the self-locking component is used to fix the limit rod 52, a movable plate 57 is fixed outside the limit rod 52, and the movable plate 57 is connected to the limit block 51 through a fourth elastic component 56, and a plurality of limit grooves 58 adapted to the limit 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 limit rod 52. Under the action of the movable plate 57 and the fourth elastic component 56, the limit rod 52 automatically enters the limit groove 58 on the inner wall of the door frame 1. The limit groove 58 can fix the protective door 2 through the pin rod 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] See also Figure 5 and Figure 6 The self-locking assembly includes a pull rod 55 that passes through the side wall of the limit block 51, and a fixing groove 59 that matches the pull rod 55 is provided on the side wall of the limit rod 52. One end of the pull rod 55 is located inside the fixing groove 59, and a moving plate 53 is fixed to the other end of the pull rod 55. The moving plate 53 is connected to the side wall of the limit block 51 through a fifth elastic component 54. A guide rod 510 is fixed to the outside of the protective door 2, and a guide groove is passed through the inside of the guide rod 510. The moving plate 53 is fixedly connected to a traction rope 511, which passes through the guide groove and is fixedly connected to the baffle 4;

[0036] In the initial state, 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 limit rod 52 is fixed by the pull rod 55, thereby preventing the limit rod 52 from entering the limit groove 58 on the inner wall of the door frame 1, thereby facilitating the staff to close the protective door 2. 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, and the movable plate 53 drives the pull rod 55 to move to the outside of the fixed groove 59. The limit of the pull rod 55 is lost, and the limit rod 52 automatically resets and enters the limit groove 58, thereby improving the fixing effect on the protective door 2.

[0037] Working principle: When in use, the staff pushes the rack 37 downward, and the meshing of the rack 37 and the gear 36 drives the gear 36 to rotate, thereby driving the arc-shaped retaining frame 32 to rotate, so that the arc-shaped retaining frame 32 enters into one of the limiting rings 31 on the other protective door 2, and the arc-shaped retaining frame 32 moves while squeezing the arc-shaped retaining frame 32 on the other protective door 2, so that the arc-shaped retaining frame 32 on the other protective door 2 enters into the limiting ring 31 on the protective door 2. The arrangement of the two arc-shaped retaining frames 32 is convenient for the staff to quickly fix the two protective doors 2, and the stability is strong. When the arc-shaped retaining frame 32 enters into one of the limiting rings 31 on the other protective door 2, the pin rod 313 automatically enters into the pin groove 314, thereby 37 plays a fixing role, and the rack 37 plays a fixing role on the arc-shaped baffle frame 32 through the gear 36, thereby effectively improving the stability of the arc-shaped baffle frame 32. When the protective door 2 is hit by the outside, the external impact force will first act on the surface of the lower protective plate 8, and 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, and the movable plate 53 drives the pull rod 55 to move to the outside of the fixed groove 59. The limit of the pull rod 55 is lost, and the limit rod 52 automatically resets and enters the limit groove 58. The limit groove 58 can play a secondary fixing role on the protective door 2 through the pin rod 313, thereby improving the stability between the protective door 2 and the door frame 1, and further improving the protective effect 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety protection door structure for a hoistway elevator, comprising a door frame; It is characterized in that The door frame is provided with symmetrically distributed protective doors, and rotating rods are fixed on the top and bottom of the protective doors, and the rotating rods are rotatably connected to the inner wall of the door frame. A closing mechanism is provided on one side of the protective door, and the closing mechanism is used to fix the two protective doors. A protective plate is provided on the other side of the protective door, and the protective plate is fixed with symmetrically distributed support rods, which penetrate 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, and the baffle is connected to the protective door through a first elastic component, wherein a locking mechanism is provided between the protective door and the door frame, and when the protective plate is subjected to pressure, the locking mechanism is used to perform secondary fixation on the protective door.

2. A hoistway elevator safety protection door structure according to claim 1, It is characterized in that The closing mechanism includes a limit ring which is fixedly connected to the protective door and is symmetrically distributed. An arc-shaped retaining frame runs through the interior of the limit ring. The arc-shaped retaining frame is slidably connected to the limit ring. One of the arc-shaped retaining frames is fixed with a plurality of teeth distributed in a circle. The teeth are meshed with gears. The gears are rotatably connected to the protective door. A rotating assembly is provided on the protective door, and the rotating assembly is used to drive the gears to rotate.

3. A hoistway elevator safety protection door structure according to claim 2, It is characterized in that The rotating assembly includes a rack meshing with the 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 interior of the rack and is slidably connected to the rack, and a fixing component is provided on the protective door, which is used to fix the rack.

4. A hoistway elevator safety protection door structure according to claim 3, It is characterized in that The fixing component includes a fixing plate fixedly connected to the protective door, a pin rod passes through the fixing plate, one end of the pin rod is in contact with the side wall of the rack, and the other end of the pin rod is connected to the fixing plate through a third elastic component. The side wall of the rack is provided with a pin groove adapted to the pin rod.

5. A hoistway elevator safety protection door structure according to any one of claims 2 to 4, It is characterized in that The surfaces of the protective doors are all provided with arc-shaped grooves, and the outsides of the arc-shaped retaining frames are all fixed with arc-shaped sliding blocks adapted to the arc-shaped grooves, and the arc-shaped sliding blocks are located inside the arc-shaped grooves and are slidably connected to the arc-shaped grooves.

6. A hoistway elevator safety protection door structure according to claim 1, It is characterized in that The locking mechanism includes limit blocks which are arranged on both sides of the baffle and are symmetrically distributed. The limit blocks are fixedly connected to the protective door. A limit rod runs through the limit block. The limit rod is slidably connected to the limit block. A self-locking component is provided inside the limit block, and the self-locking component is used to fix the limit rod. A movable plate is fixed to the outside of the limit rod, and the movable plate is connected to the limit block through a fourth elastic component. A plurality of limit grooves which are compatible with the limit rod are provided on the side wall of the door frame.

7. A hoistway elevator safety protection door structure according to claim 6, It is characterized in that The self-locking component includes a pull rod passing through the side wall of the limit block, and a fixing groove matched with the pull rod is provided on the side wall of the limit rod. One end of the pull rod is located inside the fixing groove, and a movable plate is fixed to the other end of the pull rod. The movable plate is connected to the side wall of the limit block through a fifth elastic component. A guide rod is fixed to the outside of the protective door, and a guide groove passes through the inside of the guide rod. The movable plate is fixedly connected to a traction rope, which passes through the guide groove and is fixedly connected to the baffle.

Images