Elevator landing door strength detection device

Abstract

The utility model discloses an elevator landing door strength detection device, which relates to the field of elevator detection and comprises a detection device main body, an impact mechanism mounted on the detection device main body, a traction mechanism arranged on the detection device main body and a secondary impact prevention mechanism arranged on the detection device main body. A sliding partition plate is slidably connected to the anti-collision support, a second spring is fixed between the anti-collision support and a sliding partition plate support, a connecting frame is fixed to one end of the traction mechanism, a separating telescopic rod is fixed to the connecting frame, one end of the separating telescopic rod is matched with a second connecting ring, and a connecting rope is arranged between the second connecting ring and the sliding partition plate. The device has the beneficial effects that when the pendulum bob is detected to be in place, the transverse sliding frame opens the sliding partition plate and compresses the second spring through the connecting rope, then the pendulum bob is detected to release and impact the landing door, the sliding partition plate is unlimited after impact, and the second spring drives the sliding partition plate to shield an impact point, so that secondary impact can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of elevator detection, in particular to an elevator landing door strength detection device. Background Art

[0002] The strength of an elevator landing door is an important characteristic of the elevator landing door. During the production process of the elevator landing door, strict requirements are imposed on the landing door. It is necessary to conduct sampling inspections on the landing door to determine whether the strength of the landing door meets the standards. The commonly used methods for detecting the strength of the elevator landing door are the pendulum impact test and the 300N static test. When conducting the pendulum impact test, to avoid the pendulum hitting the elevator landing door again after bouncing, usually one person is arranged near the impact point to pick up the pendulum after one impact. However, due to the large weight of the pendulum, safety problems may occur when the staff makes mistakes. Therefore, an elevator landing door strength detection device with automatic prevention of secondary impact should be proposed.

[0003] The patent document with the publication number CN222561474U discloses an elevator landing door strength detection device, which includes a frame body and an impact hammer, and also includes two arc-shaped guide rods and a clamping assembly. The impact hammer is suspended at the top of the frame body, the two arc-shaped guide rods are symmetrically and fixedly installed in the frame body, and the clamping assembly is slidably installed between the two arc-shaped guide rods. In the above device, through the arranged arc-shaped guide rods and clamping assembly. When in use, adjust the two clamping plates to both sides of the impact hammer, and then simultaneously pull the pull rod and the grip rod to clamp and lift the impact hammer. During the lifting process, the two arc-shaped guide rods can guide the two round rods, and the two limit rings can limit the two round rods on the left and right sides, so that the impact hammer will not be displaced during the lifting process, avoiding the deviation of the impact point, but there is no measure to prevent the pendulum from hitting the elevator landing door again. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an elevator landing door strength detection device to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] An elevator landing door strength detection device, including a main body of the detection device. At the top of the front end of the main body of the detection device, an impact mechanism is installed. The impact mechanism includes a detection pendulum. The main body of the detection device includes a detection bracket. A traction mechanism is arranged on the detection bracket. The traction mechanism includes two symmetrically arranged lateral sliding frames that are slidably connected to both sides of the detection bracket. An elevating component for driving the lateral sliding frames to lift and lower is arranged on the detection bracket. A traction rod is slidably connected to the lateral sliding frame. A picking and placing component for lifting and releasing the detection pendulum is arranged in the middle of the traction rod. A secondary impact prevention mechanism is arranged on the front side of the detection bracket. The secondary impact prevention mechanism includes an anti-collision bracket fixedly connected to the detection bracket. Two symmetrically arranged sliding partitions are slidably connected to the anti-collision bracket. A buffer pad is fixedly connected to the sliding partition. A second spring is fixedly connected between the anti-collision bracket and the sliding partition. A connecting rope is fixedly connected to the outside of the sliding partition. The other end of the connecting rope is fixedly connected to a second connecting ring. One end of the lateral sliding frame is fixedly connected to a connecting frame. A disengaging telescopic rod is fixedly connected to the connecting frame. The output end of the disengaging telescopic rod is movably connected to the second connecting ring.

[0007] Preferably, a guide rod is fixedly connected to the outside of the sliding partition. The guide rod is slidably connected to the anti-collision bracket. The second spring is sleeved outside the guide rod. Two symmetrically arranged deflecting pulleys are rotatably connected to the anti-collision bracket. The deflecting pulleys are in contact with the connecting rope. A control component is fixedly connected to the connecting frame. The control component is electrically connected to the disengaging telescopic rod.

[0008] Preferably, the elevating component includes a motor fixedly connected to the top of the detection bracket. The output end of the motor is fixedly connected to a screw rod. The screw rod is rotatably connected to the detection bracket. The screw rod is threadedly connected to the lateral sliding frame.

[0009] Preferably, a landing door fixing frame is fixedly connected to the front end of the detection bracket. A to-be-detected landing door is fixedly connected to the landing door fixing frame. In the middle of the top of the front end of the detection bracket, an electric telescopic rod is fixedly connected. The output end of the electric telescopic rod is fixedly connected to a suspension bracket. A height gauge is fixedly connected to the rear side of the detection bracket.

[0010] Preferably, the picking and placing component includes a traction bracket fixedly connected to the traction rod. Two symmetrically arranged half gears are rotatably connected to the front end of the traction bracket. A traction hand is fixedly connected to the half gear. A T-shaped rack is slidably connected inside the traction bracket. The T-shaped rack is meshed with the half gear. A first spring is fixedly connected between the T-shaped rack and the traction bracket. A limiting plate is hinged to the bottom of the traction bracket. A torsion spring is fixedly connected between the limiting plate and the middle of the traction bracket. A limiting pin is fixedly connected to the top of the limiting plate. The limiting pin at the top of the limiting plate can limit the T-shaped rack. A pulling rope is fixedly connected to the rear side of the traction bracket. A disengaging rope is fixedly connected to the bottom of the limiting plate.

[0011] Preferably, the impact mechanism further includes a first connecting ring hinged to the suspension bracket. A pendulum rope is fixedly connected to the first connecting ring, and the other end of the pendulum rope is fixedly connected to the detection pendulum. A traction rope is fixedly connected to the rear side of the detection pendulum, and the traction rope can cooperate with the traction hand.

[0012] The beneficial effects are as follows: Through the setting of the anti-secondary impact mechanism, during the process of the detection pendulum being pulled up, the transverse sliding frame pulls the sliding partition board open through the traction of the connecting rope to expose the impact position. At the same time, the second spring is compressed to store energy. Subsequently, the detection pendulum is released to impact the door to be inspected. After the impact, the detection pendulum rebounds. At this time, it disengages from the telescopic rod to release the limit on the second connecting ring, and the second spring drives the sliding partition board to reset to block the impact position, so that the detection pendulum cannot impact the door to be inspected again. In this way, secondary impact on the door to be inspected can be avoided, ensuring the accuracy of the detection data.

[0013] The additional technical features and their advantages of the present invention will be more clearly described in the following description content, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0015] Figure 1 is the left view of a device for detecting the strength of an elevator door described in the present invention;

[0016] Figure 2 is the perspective view of a device for detecting the strength of an elevator door described in the present invention;

[0017] Figure 3 is the structural schematic diagram of the main body of the detection device of a device for detecting the strength of an elevator door described in the present invention;

[0018] Figure 4 is the structural schematic diagram of the picking and placing component of a device for detecting the strength of an elevator door described in the present invention;

[0019] Figure 5 is the upper side cross-sectional view of the traction bracket of a device for detecting the strength of an elevator door described in the present invention;

[0020] Figure 6 is the left side cross-sectional view of a device for detecting the strength of an elevator door described in the present invention;

[0021] Figure 7 is the rear view of the anti-secondary collision mechanism of a device for detecting the strength of an elevator door described in the present invention;

[0022] Figure 8 is a three-dimensional view of the relative positions of the anti-collision bracket and the lateral sliding bracket of a device for detecting the strength of an elevator landing door according to the present utility model;

[0023] Figure 9 is a three-dimensional view of the relative positions of the second connecting ring and the disengaging telescopic rod of a device for detecting the strength of an elevator landing door according to the present utility model.

[0024] The description of the reference numerals is as follows:

[0025] 101, detection bracket; 102, landing door fixing bracket; 103, landing door to be detected; 104, electric telescopic rod; 105, suspension bracket; 106, height gauge; 201, lateral sliding bracket; 202, motor; 203, screw; 204, traction rod; 205, traction bracket; 206, traction hand; 207, semi-gear; 208, T-shaped rack; 209, first spring; 210, limit plate; 211, pulling rope; 212, disengaging rope; 301, swinging rope; 302, first connecting ring; 303, detection pendulum; 304, traction rope; 401, anti-collision bracket; 402, sliding partition; 403, buffer pad; 404, guide rod; 405, second spring; 406, connecting rope; 407, second connecting ring; 408, disengaging telescopic rod; 409, connecting frame; 410, deflecting pulley. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] The present utility model will be further described below in conjunction with the accompanying drawings:

[0029] As Figures 1-9As shown in the figure, an elevator landing door strength detection device includes a detection device main body. At the top of the front end of the detection device main body, an impact mechanism is installed. The impact mechanism includes a detection pendulum 303, and the detection pendulum 303 can impact the to-be-detected landing door 103. The detection device main body includes a detection bracket 101. A traction mechanism is arranged on the detection bracket 101. The traction mechanism includes two symmetrically arranged lateral sliding frames 201 that are slidably connected to both sides of the detection bracket 101. An elevating component for driving the lateral sliding frames 201 to lift and lower is arranged on the detection bracket 101. A traction rod 204 is slidably connected to the lateral sliding frame 201. A picking and placing component for lifting and releasing the detection pendulum 303 is arranged in the middle of the traction rod 204. An anti-secondary impact mechanism is arranged on the front side of the detection bracket 101. The anti-secondary impact mechanism includes an anti-collision bracket 401 that is bolted and fixed to the detection bracket 101. Two symmetrically arranged sliding partitions 402 are slidably connected to the anti-collision bracket 401. A buffer pad 403 is fixedly connected to the sliding partition 402. A second spring 405 is fixedly connected between the anti-collision bracket 401 and the sliding partition 402. A connecting rope 406 is fixedly connected to the outside of the sliding partition 402. The other end of the connecting rope 406 is fixedly connected to a second connecting ring 407. One end of the lateral sliding frame 201 is fixedly connected to a connecting frame 409. A disengaging telescopic rod 408 is fixedly connected to the connecting frame 409. The output end of the disengaging telescopic rod 408 is movably connected to the second connecting ring 407. Before performing the elevator landing door strength detection, the staff connects the second connecting ring 407 with the output end of the disengaging telescopic rod 408. Then, the two traction hands 206 are closed and the traction rope 304 is limited within the loop formed by the closed traction hands 206. Subsequently, the elevating component is activated to lift the picking and placing component to a predetermined test position. During this process, the lateral sliding frame 201 rises to drive the connecting frame 409 to rise. The connecting frame 409 drives the disengaging telescopic rod 408 to rise. The disengaging telescopic rod 408 drives the connecting rope 406 to move through the second connecting ring 407. The connecting rope 406 drives the two sliding partitions 402 to open. The sliding partitions 402 open to expose the impact position of the to-be-detected landing door 103. At the same time, the second spring 405 stores energy. The staff drives the traction rod 204 to move by pulling the pulling rope 211 until the pendulum rope 301 is straightened. Then, the disengaging rope 212 is pulled, the traction hands 206 open, and the detection pendulum 303 swings under the action of gravity and impacts the to-be-detected landing door 103. After the detection pendulum 303 impacts the to-be-detected landing door 103 and is bounced up, at this time, the disengaging telescopic rod 408 contracts and releases the mating limit with the second connecting ring 407. In this way, the sliding partition 402 is reset under the drive of the second spring 405 to block the impact position on the to-be-detected landing door 103, so as to prevent the detection pendulum 303 from generating a secondary impact on the to-be-detected landing door 103.

[0030] A guide rod 404 is fixedly connected to the outside of the sliding partition plate 402. The guide rod 404 is slidably connected to the anti-collision bracket 401. The second spring 405 is sleeved on the outside of the guide rod 404. The arrangement of the guide rod 404 ensures that the second spring 405 will not produce a large radial deformation during use. Two symmetrically arranged deflecting pulleys 410 are rotatably connected to the anti-collision bracket 401. The deflecting pulley 410 contacts the connecting rope 406. The arrangement of the deflecting pulley 410 can ensure the smooth movement of the connecting rope 406 and reduce friction. A control component is fixedly connected to the connecting frame 409. The control component is electrically connected to the disengaging telescopic rod 408. The control component can be a sound sensor. After detecting the impact sound generated by the pendulum 303 hitting the door to be inspected 103, the sound sensor generates an electrical signal to activate the disengaging telescopic rod 408. The control component can also be a delay remote control switch. A switch is installed between the limit plate 210 and the traction bracket 205. After the limit plate 210 rotates to release the detection pendulum 303, a remote control signal is generated. The purpose of the delay of the delay remote control switch on the connecting frame 409 after a certain time is to wait for the detection pendulum 303 to complete the impact on the door to be inspected 103 and generate an electrical signal to activate the disengaging telescopic rod 408.

[0031] The lifting component includes a motor 202 bolted to the top of the detection bracket 101. The output end of the motor 202 is fixedly connected to a screw rod 203. The screw rod 203 is rotatably connected to the detection bracket 101. The screw rod 203 is threadedly connected to the lateral sliding frame 201. The motor 202 drives the screw rod 203 to rotate, and the screw rod 203 drives the lateral sliding frame 201 to lift through the thread.

[0032] A door fixing frame 102 is bolted to the front end of the detection bracket 101. The door to be inspected 103 is fixedly connected to the door fixing frame 102. An electric telescopic rod 104 is bolted to the middle of the top of the front end of the detection bracket 101. The arrangement of the electric telescopic rod 104 can conveniently adjust the impact position. The output end of the electric telescopic rod 104 is fixedly connected to a suspension bracket 105. A height gauge 106 is fixedly connected to the rear side of the detection bracket 101. The arrangement of the height gauge 106 enables the staff to directly see the position of the lateral sliding frame 201, so as to more accurately control the release height of the detection pendulum 303 and avoid test errors.

[0033] The picking and placing assembly includes a towing bracket 205 fixedly connected to the towing rod 204. At the front end of the towing bracket 205, two symmetrically arranged half gears 207 are hinged. A towing handle 206 is fixedly connected to the half gear 207. A T-shaped rack 208 is slidably connected inside the towing bracket 205. The T-shaped rack 208 meshes with the half gear 207. A first spring 209 is fixedly connected between the T-shaped rack 208 and the towing bracket 205. A limiting plate 210 is hinged to the bottom of the towing bracket 205. A torsion spring is fixedly connected between the limiting plate 210 and the middle of the towing bracket 205. A limiting pin is fixedly connected to the top of the limiting plate 210. The front side of the limiting pin is set as an arc surface or an inclined surface. The limiting pin at the top of the limiting plate 210 can limit the T-shaped rack 208. A pulling rope 211 is fixedly connected to the rear side of the towing bracket 205. A separating rope 212 is fixedly connected to the bottom of the limiting plate 210. The outer surfaces of the separating rope 212 and the pulling rope 211 are set in different colors. During the process of closing the towing handle 206 and limiting the towing rope 304, the towing handle 206 drives the half gear 207 to rotate. The half gear 207 drives the T-shaped rack 208 to move. At this time, the first spring 209 contracts. During the movement of the T-shaped rack 208, it crosses the limiting pin on the limiting plate 210. In this way, the limiting plate 210 and the T-shaped rack 208 cooperate to form a limit. When the inspection pendulum 303 needs to be released, the worker pulls the separating rope 212. The separating rope 212 drives the limiting plate 210 to rotate. The rotation of the limiting plate 210 cancels the limit with the T-shaped rack 208. The T-shaped rack 208 resets under the drive of the first spring 209. During this process, the T-shaped rack 208 drives the half gear 207 to rotate. The half gear 207 drives the towing handle 206 to open. The towing handle 206 can no longer limit the towing rope 304. In this way, the inspection pendulum 303 is released.

[0034] The impact mechanism further includes a first connecting ring 302 hinged to the suspension bracket 105 through a pin shaft. A pendulum rope 301 is fixedly connected to the first connecting ring 302. The other end of the pendulum rope 301 is fixedly connected to the inspection pendulum 303 by thread. A towing rope 304 is fixedly connected to the rear side of the inspection pendulum 303. The towing rope 304 is made of a plastic rope with good flexibility and a small diameter. The towing rope 304 can cooperate with the towing handle 206.

[0035] Working principle: Before conducting the strength test of the floor door, the staff connects the second connecting ring 407 with the output end of the disengaging telescopic rod 408, then closes the two traction hands 206 and limits the traction rope 304 in the ring formed by the closing of the traction hands 206. Subsequently, the lifting assembly is started, the motor 202 drives the screw rod 203 to rotate, and the screw rod 203 drives the horizontal sliding frame 201 to lift and lower through the thread, and the horizontal sliding frame 201 lifts the traction rod 204 to a predetermined test position. In this process, the horizontal sliding frame 201 rises and drives the connecting frame 409 to rise, and the connecting frame 409 drives the disengaging telescopic rod 408 to rise, and the disengaging telescopic rod 408 pulls the connecting rope 406 to move through the second connecting ring 407, and the connecting rope 406 drives the two sliding partitions 402 to open, and the sliding partitions 402 open to leak out the impact position of the floor door 103 to be inspected. At the same time, the second spring 405 stores energy, and the staff drives the traction rod 204 to move by pulling the rope 211 until the swing rope 301 is straightened, and it is time to release When releasing the detection pendulum 303, the staff pulls the detachment rope 212, and the detachment rope 212 drives the limit plate 210 to rotate. The rotation of the limit plate 210 cancels the limit with the T-shaped rack 208, and the T-shaped rack 208 is reset under the drive of the first spring 209. In this process, the T-shaped rack 208 drives the half gear 207 to rotate, and the half gear 207 drives the traction hand 206 to open, and the traction hand 206 can no longer limit the traction rope 304, so the detection pendulum 303 is released, and the detection pendulum 303 is in Under the action of gravity, it swings and hits the door 103 of the floor to be inspected. After the detection pendulum 303 hits the door 103 of the floor to be inspected and is bounced up, the disengagement telescopic rod 408 will, under the control of the control component, shrink the output end cooperating with the second connecting ring 407 to release the cooperation limit with the second connecting ring 407, so that the sliding partition 402 is reset under the drive of the second spring 405 to block the impact position on the door 103 of the floor to be inspected, thereby preventing the detection pendulum 303 from making a secondary impact on the door 103 of the floor to be inspected.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An elevator door strength detection device, comprising a detection device body, a collision mechanism is installed at the top of the front end of the detection device body, and the collision mechanism includes a detection pendulum (303), characterized in that: The detection device body comprises a detection bracket (101), the detection bracket (101) is provided with a traction mechanism, the traction mechanism comprises two symmetrically arranged transverse sliding frames (201) slidably connected to the two sides of the detection bracket (101), the detection bracket (101) is provided with a lifting assembly for driving the transverse sliding frame (201) to rise and fall, the transverse sliding frame (201) is slidably connected with a traction rod (204), a pick-and-place assembly for lifting and releasing the detection pendulum (303) is provided in the middle of the traction rod (204), and the front side of the detection bracket (101) is provided with an anti-secondary impact mechanism, the anti-secondary impact mechanism comprises an anti-collision bracket (404) fixedly connected to the detection bracket (101) 01), the anti-collision bracket (401) is slidably connected to two symmetrically arranged sliding baffles (402), the sliding baffles (402) are fixedly connected to a buffer pad (403), a second spring (405) is fixedly connected between the anti-collision bracket (401) and the sliding baffle (402), a connecting rope (406) is fixedly connected to the outside of the sliding baffle (402), the other end of the connecting rope (406) is fixedly connected to a second connecting ring (407), one end of the transverse sliding frame (201) is fixedly connected to a connecting frame (409), a detachable telescopic rod (408) is fixedly connected to the connecting frame (409), and the output end of the detachable telescopic rod (408) is movably connected to the second connecting ring (407).

2. An elevator door strength detection device according to claim 1, characterized in that: A guide rod (404) is fixedly connected to the outside of the sliding partition (402), and the guide rod (404) is slidably connected to the anti-collision bracket (401). The second spring (405) is sleeved on the outside of the guide rod (404). Two symmetrically arranged direction-changing pulleys (410) are rotatably connected to the anti-collision bracket (401), and the direction-changing pulleys (410) are in contact with the connecting rope (406). A control component is fixedly connected to the connecting frame (409), and the control component is electrically connected to the detachable telescopic rod (408).

3. The elevator door strength detection device according to claim 1, characterized in that: The lifting assembly comprises a motor (202) fixedly connected to the top of the detection bracket (101), a screw rod (203) fixedly connected to the output end of the motor (202), the screw rod (203) being rotationally connected to the detection bracket (101), and the screw rod (203) being threadedly connected to the transverse sliding frame (201).

4. The elevator door strength detection device according to claim 1, characterized in that: The front end of the detection bracket (101) is fixedly connected to a floor door fixing frame (102), the floor door to be inspected (103) is fixedly connected to the floor door fixing frame (102), an electric telescopic rod (104) is fixedly connected to the middle of the top of the front end of the detection bracket (101), the output end of the electric telescopic rod (104) is fixedly connected to a hanging frame (105), and a height gauge (106) is fixedly connected to the rear side of the detection bracket (101).

5. An elevator door strength detection device according to claim 4, characterized in that: The pick-and-place assembly comprises a traction bracket (205) fixedly connected to the traction rod (204); the front end of the traction bracket (205) is rotatably connected to two symmetrically arranged half gears (207); the half gears (207) are fixedly connected to a traction hand (206); a T-shaped rack (208) is slidably connected inside the traction bracket (205); the T-shaped rack (208) is meshed with the half gears (207); and the T-shaped rack (208) and the traction bracket (205) are fixedly connected to each other. a first spring (209), a limit plate (210) is hingedly connected to the bottom of the traction bracket (205), a torsion spring is fixedly connected between the limit plate (210) and the traction bracket (205), a limit pin is fixedly connected to the top of the limit plate (210), the limit pin on the top of the limit plate (210) can limit the T-shaped rack (208), a pulling rope (211) is fixedly connected to the rear side of the traction bracket (205), and a release rope (212) is fixedly connected to the bottom of the limit plate (210).

6. An elevator door strength detection device according to claim 5, characterized in that: The impact mechanism further comprises a first connecting ring (302) hinged to the suspension frame (105); a swing rope (301) is fixedly connected to the first connecting ring (302); the other end of the swing rope (301) is fixedly connected to the detection pendulum (303); a traction rope (304) is fixedly connected to the rear side of the detection pendulum (303); and the traction rope (304) can cooperate with the traction hand (206).

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