Elevator door closing impact force detection device
By designing an elevator door closing impact force detection device with components such as support frame, sliding block, and connecting frame, the problem of not being able to detect the impact force when the elevator door is about to close in the existing technology has been solved, thus improving the safety and accuracy of the detection.
Patent Information
- Application Number
- CN202520438106.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing elevator door closing detection devices can only detect the squeezing force when the elevator door is closing, but cannot detect the impact force when the elevator door is about to close. Furthermore, the safety of the detection device is insufficient when placed between elevator doors.
A detection device was designed, comprising a support frame, a sliding block, a connecting frame, a fixed frame, a sliding rod, and a load-bearing frame. The device uses a threaded rod to control the up-and-down movement of the detection part, and combines a pressure detector and an elastic element to detect the squeezing and impact forces at different heights of the elevator door. The impact force is mitigated by a buffer pad. The entire device is placed on one side of the elevator door for detection.
It enables the detection of impact force when elevator doors are about to close, improving the safety and accuracy of the detection and avoiding safety hazards caused by excessive gaps between the devices and elevator doors.
Smart Images

Figure CN223813242U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to impact detection technical field, concretely is a kind of elevator door closing impact detection device. BACKGROUND
[0002] The opening and closing of the elevator floor door is realized by the door opening blade installed on the car door. Each floor door is equipped with a door lock. After the floor door is closed, the mechanical lock hook of the door lock engages, and at the same time, the electrical interlocking contact of the floor door and the car door is closed, and the elevator control circuit is connected. At this time, the elevator can start running. The elevator floor door has a fireproof function in the building and is used to divide the fireproof area. The car door safety switch can ensure that the elevator cannot run normally in the state that the door is not safely closed in place or not locked.
[0003] The authorized publication number "CN216349270U" records "a kind of elevator door closing impact detection device, it is related to impact detection technical field, including base, the upper surface of the base is fixedly connected with support column, the upper surface of the support column is fixedly connected with top plate, the inside of the support column is slidably connected with lifting cylinder, lifting adjusting mechanism is equipped between the base and the top plate, the inside of the lifting cylinder is equipped with extrusion detection mechanism, two symmetrical fixed mechanisms are equipped outside the extrusion detection mechanism, the lifting adjusting mechanism includes lifting plate fixedly connected on the outer surface of lifting cylinder. The utility model can be designed by the cooperation of base, support column, top plate, lifting cylinder, lifting adjusting mechanism, extrusion detection mechanism and fixed mechanism. The height of lifting cylinder, extrusion detection mechanism and fixed mechanism can be adjusted conveniently by lifting adjusting mechanism. In turn, the extrusion force of different heights of elevator door can be detected by extrusion detection mechanism.
[0004] The above-mentioned patent can adjust the height of the lifting cylinder, the extrusion detection mechanism and the fixed mechanism through the lifting adjusting mechanism, and in turn, the extrusion force of different heights of the elevator door can be detected by the extrusion detection mechanism. But actually, the detection device can only detect when the elevator door is closed, and cannot detect the impact force when the elevator door is about to close. UTILITY MODEL CONTENTS
[0005] The utility model provides a kind of elevator door closing impact detection device, by support frame, sliding block, connecting frame, fixed frame, sliding rod and bearing frame, the impact force when elevator door is about to close can be detected, the screw thread mode of threaded rod is controlled to move up and down detection part, to detect the extrusion force of different heights of elevator door, while the whole device is placed on one side of elevator door to detect, improve the security of detection.
[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of elevator door closing impact detection device, comprising:
[0007] A fixed base plate is provided, with a support frame fixedly mounted on the top of its outer wall. A sliding block is slidably embedded in the inner wall of the support frame. A connecting frame is fixedly mounted on one side of the outer wall of the sliding block. Fixed frames are fixedly mounted on both sides of the outer wall of the connecting frame. Two sliding rods are slidably embedded in the inner wall of the fixed frames. A connecting plate is fixedly mounted on the ends of the two sliding rods that are far apart from each other. A bearing frame is fixedly mounted on one side of the outer wall of the connecting plate. A pressure detector is installed at the center of the inner wall of the fixed frame. Two elastic elements are fixedly mounted on the outer wall of the pressure detector. A sliding piece is fixedly mounted on the ends of the two elastic elements that are far apart from each other. The outer wall of the sliding piece is slidably embedded in the fixed frame.
[0008] As an elevator door closing impact force detection device of this utility model, two buffer pads are bonded to the outer wall of the connecting frame.
[0009] As an elevator door closing impact force detection device of this utility model, a control motor is installed at the bottom end of the support frame, and a threaded rod is fixedly installed at the output end of the control motor.
[0010] As a device for detecting the impact force of an elevator door closing according to this utility model, both ends of the outer wall of the threaded rod are rotatably embedded in the support frame, and the outer wall of the threaded rod is threadedly embedded in the sliding block.
[0011] As a device for detecting the impact force of an elevator door closing, an extension rod is provided on one side of the outer wall of the fixed base plate.
[0012] As an elevator door closing impact force detection device of this utility model, a fixing plate is fixedly provided on the side of the sliding block away from the connecting frame, and the fixing plate and the sliding block are slidably sleeved on the support frame.
[0013] This utility model provides a device for detecting the impact force of an elevator door closing. It has the following beneficial effects:
[0014] (1) The elevator door closing impact force detection device can detect the impact force of the elevator door when it is about to close by supporting frame, sliding block, connecting frame, fixed frame, sliding rod and bearing frame. The detection part is controlled to move up and down by using the threaded rod to detect the squeezing force of the elevator door at different heights. At the same time, the entire device is placed on one side of the elevator door for detection, which improves the safety of the detection. Attached Figure Description
[0015] Fig. 1 This is the front view of the present invention;
[0016] Fig. 2 This is a cross-sectional view of the present invention;
[0017] Fig. 3 This is an exploded view of the present invention.
[0018] In the figure: 1, fixed bottom plate; 2, support frame; 3, sliding block; 4, connecting frame; 5, fixed frame; 6, sliding rod; 7, bearing frame; 8, pressure detector; 9, elastic piece; 10, sliding sheet; 11, buffer pad; 12, control motor; 13, threaded rod; 14, extension rod; 15, fixed plate; 16, connecting plate. DETAILED DESCRIPTION
[0019] The technical scheme in the utility model will be described below in connection with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0020] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a kind of elevator door closing impact force detection device, comprising:
[0021] Fixed bottom plate 1, the outer wall top of fixed bottom plate 1 is fixedly provided with support frame 2, the inner wall of support frame 2 is slidably embedded with sliding block 3, the outer wall of sliding block 3 is fixedly provided with connecting frame 4 on one side, the outer wall of connecting frame 4 is fixedly embedded with fixed frame 5 on both sides, the inner wall of fixed frame 5 is slidably embedded with two sliding rods 6, the end of the two sliding rods 6 away from each other is fixedly provided with connecting plate 16, the outer wall of connecting plate 16 is fixedly provided with bearing frame 7 on one side, the inner wall of fixed frame 5 is installed with pressure detector 8 in the center, the outer wall of pressure detector 8 is fixedly provided with two elastic pieces 9, the end of the two elastic pieces 9 away from each other is fixedly provided with sliding sheet 10, and the outer wall of sliding sheet 10 is slidably embedded in fixed frame 5.
[0022] In the embodiment: through fixed bottom plate 1, support frame 2 can be fixed and stand, the outer wall of sliding block 3 can slide in support frame 2, so that connecting frame 4 fixed together can move up and down, so as to detect the extrusion force of different heights of elevator door, when elevator door is closed, it can be embedded into bearing frame 7, so as to drive two bearing frames 7 to approach each other, and utilize connecting plate 16 to act on two sliding rods 6, fixed frame 5 can make two sliding rods 6 slide stably, two sliding rods 6 approach each other and extrude on sliding sheet 10, so that two elastic pieces 9 are extruded, two elastic pieces 9 are springs, and the extrusion force received by two elastic pieces 9 acts on pressure detector 8, which can display the specific value of the extrusion force received by pressure detector 8 through external display device.
[0023] Specifically, the outer wall of connecting frame 4 is adhesively provided with two buffer pads 11.
[0024] In this embodiment, the two buffer pads 11 can slow down the impact force generated by the two bearing frames 7 approaching each other, avoiding damage to the two bearing frames 7.
[0025] Specifically, the bottom end of the support frame 2 is provided with a control motor 12, and the output end of the control motor 12 is fixedly provided with a threaded rod 13.
[0026] In this embodiment, the threaded rod 13 can rotate in the support frame 2 and be threadedly embedded in the sliding block 3 under the condition that the control motor 12 is powered on.
[0027] Specifically, the outer wall of the threaded rod 13 is rotatably embedded in the support frame 2, and the outer wall of the threaded rod 13 is threadedly embedded in the sliding block 3.
[0028] In this embodiment, the threaded rod 13 can rotate in the support frame 2 and be threadedly embedded in the sliding block 3, and the sliding block 3 can be controlled to slide up and down by using the threaded mode.
[0029] Specifically, the outer wall of the threaded rod 13 is rotatably embedded in the support frame 2, and the outer wall of the threaded rod 13 is threadedly embedded in the sliding block 3.
[0030] In this embodiment, the threaded rod 13 can rotate in the support frame 2 and be threadedly embedded in the sliding block 3 under the condition that the control motor 12 is powered on.
[0031] Specifically, the outer wall of the threaded rod 13 is rotatably embedded in the support frame 2, and the outer wall of the threaded rod 13 is threadedly embedded in the sliding block 3.
[0032] In this embodiment, the threaded rod 13 can rotate in the support frame 2 and be threadedly embedded in the sliding block 3, and the sliding block 3 can be controlled to slide up and down by using the threaded mode.
[0033] In use, the fixed base plate 1 can make the support frame 2 stand firmly, the outer wall of the sliding block 3 can slide in the support frame 2, the connected frame 4 fixed together can move up and down, so as to detect the extrusion force of the elevator door at different heights, the elevator door can be embedded in the bearing frame 7 when closing, so as to drive the two bearing frames 7 to approach each other, and the connecting plate 16 can act on the two sliding rods 6, the fixed frame 5 can make the two sliding rods 6 slide stably, the two sliding rods 6 can be extruded on the sliding sheet 10 when approaching each other, so as to extrude the two elastic members 9, the two elastic members 9 are springs, the extrusion force of the two elastic members 9 can act on the pressure detector 8, the specific value of the extrusion force of the pressure detector 8 can be displayed through the external display device, the two buffer pads 11 can slow down the impact force generated by the two bearing frames 7 approaching each other, avoiding damage to the two bearing frames 7, the control motor 12 can drive the threaded rod 13 to rotate under the condition that it is powered on, the threaded rod 13 can rotate in the support frame 2 and be threadedly embedded in the sliding block 3, and the sliding block 3 can be controlled to slide up and down by using the threaded mode.
[0034] The detection device of the prior art can only detect the extrusion force when the elevator door is closed, and cannot detect the impact force when the elevator door is about to close, because the width of the lifting cylinder is large, and the width of the fixing mechanism is large, so that when the detection device is placed between two elevator doors, the gap between the two elevator doors is large when the elevator door is closed. The width of the extension rod 14, the connecting frame 4 and the bearing frame 7 in the detection device is small, so that the impact force when the elevator door is about to close can be detected, the detection part is controlled to move up and down by using the threaded mode of the threaded rod 13, so that the extrusion force and the impact force at different heights of the elevator door are detected. Meanwhile, during detection, the fixing bottom plate 1 is placed on one side of the elevator door, and only the extension rod 14, the connecting frame 4 and the bearing frame 7 are placed between the two elevator doors for detection, so that the safety of detection is improved.
[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A device for detecting the impact force of an elevator door closing, characterized in that, Include: The fixed bottom plate (1), the outer wall top of the fixed bottom plate (1) is provided with a support frame (2), the inner wall of the support frame (2) is provided with a sliding block (3), the outer wall of the sliding block (3) is provided with a connecting frame (4), the outer wall of the connecting frame (4) is provided with a fixed frame (5), the inner wall of the fixed frame (5) is provided with two sliding rods (6), the ends of the two sliding rods (6) are provided with a connecting plate (16), the outer wall of the connecting plate (16) is provided with a bearing frame (7), the inner wall of the fixed frame (5) is provided with a pressure detector (8), the outer wall of the pressure detector (8) is provided with two elastic members (9), the ends of the two elastic members (9) are provided with a sliding sheet (10), and the outer wall of the sliding sheet (10) is provided in the fixed frame (5).
2. The elevator door closing impact force detection device according to claim 1, characterized by: The outer wall of the connecting frame (4) is provided with two buffer pads (11).
3. The elevator door closing impact force detection device according to claim 2, characterized by: The bottom end of the support frame (2) is provided with a control motor (12), and the output end of the control motor (12) is provided with a threaded rod (13).
4. The elevator door closing impact force detection device according to claim 3, characterized by: The outer wall of the threaded rod (13) is rotatably provided in the support frame (2), and the outer wall of the threaded rod (13) is threadedly provided in the sliding block (3).
5. The elevator door closing impact force detection device according to claim 4, characterized by: The outer wall of the fixed bottom plate (1) is provided with an extension rod (14).
6. The elevator door closing impact force detection device according to claim 5, characterized by: The side, away from the connecting frame (4), of the sliding block (3) is provided with a fixed plate (15), and the sliding block (3) and the fixed plate (15) are slidably provided on the support frame (2).
Citation Information
Patent Citations
Elevator door closing impact force detection device
CN216349270U