CN220223125U - Three-linkage driving assembly and elevator safety detection device - Google Patents

Abstract

The utility model provides a three-linkage driving assembly and an elevator safety detection device, wherein the three-linkage driving assembly is convenient to connect and control and convenient to operate; the elevator safety detection device comprises a support component, a transverse sample adjusting component, an impact detection component, a dragging component and a triple-acting driving component, wherein the sample placing seat is transversely arranged in the main frame in a sliding manner and is in transmission connection with a rotary driving gear, the impact detection component is arranged at the middle position of the top end of the main frame, the lower end of an adjusting screw rod sliding block capable of sliding in the front-back direction is connected with a lifting rope, the lower end of the lifting rope is connected with an impact body, the adjusting screw rod sliding block is in transmission connection with a side gear, a pull rope is inserted in a lantern ring at the top end of the impact body, and a dragging barrel coaxial with the dragging gear can carry out winding connection action on the pull rope, and the impact body is adjusted to a set height position through tensioning of the pull rope; the three groups of actions are realized through the three-linkage driving assembly, so that an operator can conveniently and safely finish the detection test operation.

Description

Three-linkage driving assembly and elevator safety detection device

Technical Field

The utility model relates to the technical field of elevator detection test devices, in particular to a three-linkage driving assembly and an elevator safety detection device.

Background

National standards prescribe that the elevator must be tested for static strength of elevator landing doors before delivery. In particular, in one or several estimated weak positions of the elevator landing door, an impact detection test is performed with the weight perpendicular to the plane of the elevator landing door to check whether it is damaged.

During detection, the elevator landing door is generally fixedly arranged on a bracket, a steel wire lock and a pulley are used for controlling a swingable weight to strike the whole door, and the striking is repeated according to the required times; in the process of repeated impact operation, a technician is required to repeatedly hook and release the weight nearby the weight by using a spring buckle, and coordinated operation of each group of adjusting mechanisms at different positions is required, so that the safety is poor and the operation is inconvenient.

Disclosure of Invention

The utility model aims to provide a three-linkage driving assembly which is convenient for controlling different connections and is convenient to operate.

The utility model aims at realizing the technical scheme that the three-linkage driving assembly comprises a connecting transverse plate, a cutting driving gear and a hand wheel; the main surface of the connecting transverse plate is provided with a special-shaped groove, a switching sliding column is connected in the special-shaped groove in a sliding way, an inner shaft is connected in the switching sliding column in a rotating way, and a cutting driving gear is fixedly inserted at the upper end of the inner shaft; the hand wheel is inserted and fixed in the bottom of interior axle, has still seted up the inside groove in the special-shaped groove, and the outside of switching the traveller is fixed with the nylon seat, and nylon seat sliding connection has the cutting drive pole axle in the inside groove, and one side stockholder of connecting the diaphragm bottom surface, and the bottom mounting of switching the traveller has the dead lever, cuts and is connected with the movable rod in the rotation of driving pole axle, and the movable rod groove has been seted up to the outer end of movable rod, and the outer end of dead lever is fixed with the dead lever slider, and dead lever slider sliding connection is in the movable rod groove.

Further, a movable magnetic ring is fixed outside the switching slide column, the nodes of the special-shaped grooves are provided with fixed magnetic sleeves, and the plurality of groups of fixed magnetic sleeves are fixed on the bottom surface of the connecting transverse plate.

Another object of the present utility model is to provide an elevator safety detection device, which can utilize a three-linkage driving assembly disposed outside an impact body and convenient for operating the height position to be matched with a rotation driving gear, a side gear and a pulling gear independently, so as to realize the adjustment of the left and right lateral positions of a sample seat, the front and rear lateral positions of the impact body and the operation of the tightening and releasing actions of the impact body.

The utility model further aims at realizing the technical scheme that the elevator safety detection device comprises a bracket component, a transverse adjustment sample component, an impact detection component, a dragging component and a three-linkage driving component, wherein the transverse adjustment sample component comprises a connecting transverse plate, the impact detection component comprises a lifting rope and an impact body, the dragging component comprises a pull rope and a dragging barrel, and the three-linkage driving component comprises a cutting driving gear;

the rear end of the support member is connected with the sample holder in a sliding manner, the connecting transverse plate is fixedly connected to the side end of the support member, the rotary driving gear is rotatably arranged on the lower side of the connecting transverse plate and is in transmission connection with the sample holder, the rear top end of the support member is connected with the adjusting screw slider in a sliding manner, the side gear is rotatably arranged on the side end of the support member, the side gear is in transmission connection with the adjusting screw slider, the lifting rope is hung at the bottom end of the adjusting screw slider, the lantern ring at the top end of the impacting body is fixedly connected to the bottom end of the lifting rope, the pulling barrel is rotatably connected to the connecting transverse plate, the barrel slot is formed in the pulling barrel, the rope slider is slidably inserted in the barrel slot, the outer end of the pulling rope is fixedly arranged in the rope slider, the inner end of the pulling rope is fixedly arranged at the other side end of the support member, the pulling rope is inserted in the lantern ring of the impacting body, the lower side of the pulling barrel is coaxially connected with the pulling gear, the lower side of the pulling gear is coaxially fixedly provided with a ratchet, one side of the ratchet is provided with a pawl, one side of the ratchet is provided with a main surface of the connecting transverse plate is provided with a special-shaped groove, the inner shaft is slidably connected to the special-shaped groove, the inner shaft is rotatably connected to the switching sliding column, the switching gear is fixedly connected to the upper end of the switching gear, the driving gear is fixedly inserted into the upper end of the driving gear, the driving gear is fixedly arranged in the driving gear, and the driving gear is meshed with the rotating gear, and the pulling gear.

The technical scheme of the utility model comprises the following using processes:

before detection, the elevator landing door sample can be clamped in a sample placing seat for collision detection;

according to the thickness of the loaded elevator landing door sample, the abutting position of the impacting body on the outer surface of the elevator landing door sample in a natural vertical state can be adjusted in real time, so that the vertical abutting state of the impacting body on the outer surface of the elevator landing door sample is naturally maintained before the impacting body does not perform an impact detection test;

the cutting drive gear on one side of the support member can be switched between the rotary drive gear and the side gear, so that the cutting drive gear is in transmission connection with the rotary drive gear or the side gear independently, and the position of the impacting body and the transverse position of the elevator landing door sample relative to the impacting body can be adjusted independently by screwing the cutting drive gear on the convenient operation height position;

the impacting body before detection can be adjusted to a natural vertical state, different transverse positions of the elevator landing door sample can be adjusted to a position opposite to the impacting body, and impact detection tests can be carried out on different transverse positions of the elevator landing door;

the height of the impacting body in the natural vertical state can be changed by matching with the lifting ropes with different lengths, so that the impacting body is adjusted to different height positions relative to the elevator landing door sample;

during detection operation, the cutting driving gear can be independently switched to a position meshed with the pulling gear, the pulling gear and the pulling barrel are driven to rotate by screwing the cutting driving gear, so that a pull rope connected in a loosening state in a barrel groove through a rope sliding block can be driven to be tightened, the pull rope is wound in the pulling barrel along with the rotation of the pulling barrel and the limitation of unidirectional rotation of a ratchet wheel by a pawl, the pull rope is wound in the pulling barrel, a pulling impact body moves to a proper position forwards and upwards, the winding connection of the pull rope outside the pulling barrel does not exceed one circle, and messy wires are formed after the winding of the pull rope when the rope sliding block is released;

the impact body is lifted to a set position, the rope sliding block is pushed upwards, the rope sliding block is separated from the barrel groove, and the outer end of the pull rope is released, so that an impact detection test for the elevator landing door sample is formed.

Compared with the prior art, the elevator safety detection device provided by the utility model has the following advantages:

(1) According to the utility model, the sample placing seat capable of transversely moving is arranged at the inner rear end of the bracket component, so that an elevator landing door sample can be fixed at the front end of the sample placing seat, and the rotation of the cutting drive gear positioned at a convenient operation position can be utilized to independently drive the transverse movement of the sample placing seat and the position adjustment of the adjusting screw slide block through the engagement switching formed between the rotary drive gear in transmission connection with the sample placing seat and the side gear in transmission connection with the adjusting screw slide block, thereby conveniently adjusting the elevator landing door sample to different positions to be tested by collision, and adjusting the collision body to a state of naturally and vertically abutting against the elevator landing door before detection according to the thickness of different elevator landing door samples;

(2) Meanwhile, the utility model adopts the pull rope which is transversely arranged to drag and release the impact body, and compared with the traditional mode of needing to independently hook and release the hook, the operation is simpler and more convenient and the safety is high; the cutting driving gear can be meshed with the pulling gear independently, and the pulling rope can be driven to be wound in the pulling barrel by rotating the cutting driving gear, so that the impacting body is lifted to a set position and released; that is, through the operation of the cutting drive gear set at the proper height position, the whole set of related operation adjustment of the elevator landing door sample impact detection test can be completed, so that the operation difficulty is reduced, and the safety in the operation process is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic view of the internal structure of a first view of a three-linkage drive assembly according to the present utility model;

FIG. 2 is a schematic view of a second view of the three-linkage drive assembly of the present utility model;

FIG. 3 is a schematic view of a first view of a three-linkage drive assembly according to the present utility model

Fig. 4 is a schematic diagram of the overall structure of an elevator safety detection device provided by the utility model;

FIG. 5 is a schematic structural view of a bracket member of the present utility model;

FIG. 6 is a schematic view of the structure of the horizontal alignment sample assembly of the present utility model;

FIG. 7 is a schematic view of the structure of the inner frame part of the present utility model;

FIG. 8 is a schematic view of an impact detection assembly according to the present utility model;

FIG. 9 is a schematic view of the connection structure of the adjusting screw slider portion of the present utility model;

FIG. 10 is a schematic view of a towing assembly according to the present utility model;

fig. 11 is a schematic structural view of a pulling gear portion of the present utility model.

Reference numerals: 1. a bracket member; 2. a transverse sample adjusting component; 3. an impact detection assembly; 4. a drag assembly; 5. the three-linkage driving assembly; 101. a main frame; 102. a side frame; 201. an inner frame; 202. a sample placing seat; 203. a horizontal adjustment sliding block; 204. a transverse adjustment guide seat; 205. a guide post is transversely adjusted; 206. a screw rod seat is transversely adjusted; 207. transversely adjusting a lead screw; 208. a screw rod sliding block; 209. a lead screw bevel gear; 210. a lead screw reversing bevel gear; 211. a reversing seat; 212. a reversing shaft; 213. a connecting transverse plate; 214. the lead screw is connected with the bevel gear; 215. a bevel gear is rotationally driven; 216. a rotary driving seat; 217. a rotary driving shaft; 218. a rotary driving gear; 219. an inner chute; 220. a rear backer; 301. loading on a frame; 302. adjusting the chute; 303. adjusting a screw rod sliding block; 304. an adjusting slide block; 305. adjusting a screw rotary hole of a screw rod; 306. adjusting a screw rod; 307. an adjusted bevel gear; 308. connecting a bevel gear after adjustment; 309. a rear transverse seat; 310. a rear transverse axis; 311. an outer bevel gear; 312. an external connection bevel gear; 313. a bevel shaft seat; 314. an inclined shaft; 315. a side gear; 316. a hanging rope; 317. a striker; 318. a level gauge; 401. an upper seat; 402. a pull rope; 403. a bottom seat; 404. pulling the shaft; 405. pulling the barrel; 406. a tub; 407. a rope slider; 408. pulling the gear; 409. a spring column hole; 410. a spring column; 411. a rear clamping groove; 412. a spring plate; 413. a pressure spring; 414. a ratchet wheel; 415. a detent shaft; 416. a pawl; 417. a torsion spring; 418. a stay cord fixing seat; 501. a special-shaped groove; 502. switching the spool; 503. an inner shaft; 504. cutting and driving gears; 505. a hand wheel; 506. an inner tank; 507. a nylon seat; 508. cutting a drive rod shaft; 509. a fixed rod; 510. a movable rod; 511. a movable rod groove; 512. a fixed rod sliding block; 513. a movable magnetic ring; 514. and (5) fixing the magnetic sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-11, a sample holder 202 is transversely and slidingly connected to the rear end of a support member 1, a connecting transverse plate 213 is obliquely and fixedly connected to the side end of the support member 1, a rotary driving gear 218 is rotatably arranged on the lower side of the connecting transverse plate 213, the rotary driving gear 218 is in transmission connection with the sample holder 202, an adjusting screw slider 303 is transversely and slidingly connected to the rear top end of the support member 1, a side gear 315 is rotatably arranged on the side end of the support member 1, the side gear 315 is in transmission connection with the adjusting screw slider 303, a lifting rope 316 is suspended at the bottom end of the adjusting screw slider 303, a lantern ring at the top end of a striker 317 is fixedly connected to the bottom end of the lifting rope 316, a pulling barrel 405 is rotatably connected to the connecting transverse plate 213, a barrel groove 406 is formed in the pulling barrel 405, a rope slider 407 is slidingly inserted in the barrel groove 406, the outer end of the pulling rope 402 is fixedly arranged in the rope slider 407, the inner end of the pull rope 402 is fixed at the other end of the bracket member 1, the pull rope 402 is inserted in the collar of the striker 317, a pull gear 408 is coaxially connected with the lower side of the pull barrel 405, a ratchet wheel 414 is coaxially fixed at the lower side of the pull gear 408, a pawl 416 is arranged at one side of the ratchet wheel 414, the state that the pull barrel 405 pulls the pull rope 402 can be locked, a special-shaped groove 501 is formed in the main surface of the connecting transverse plate 213, a switching slide column 502 is connected in the special-shaped groove 501 in a sliding manner, an inner shaft 503 is connected in the switching slide column 502 in a rotating manner, a cutting and driving gear 504 is fixedly inserted at the upper end of the inner shaft 503, the cutting and driving gear 504 is coplanar with the rotating and driving gear 218, the side gear 315 and the pull gear 408, and the cutting and driving gear 504 can form meshing switching with the rotating and driving gear 218, the side gear 315 and the pull gear 408.

Before detection, an elevator landing door sample can be clamped in the sample placing seat 202 for collision detection;

according to the thickness of the loaded elevator landing door sample, the abutting position of the impact body 317 on the outer surface of the elevator landing door sample in a natural vertical state can be adjusted in real time, so that the vertical abutting state of the impact body 317 on the outer surface of the elevator landing door sample is naturally maintained before the impact body 317 does not perform an impact detection test;

moreover, the switching between the rotary drive gear 218 and the side gear 315 can be performed by the cutting drive gear 504 positioned on one side of the bracket member 1, so that the cutting drive gear 504 is separately in transmission connection with the rotary drive gear 218 or the side gear 315, and the position of the striking body 317 and the transverse position of the elevator landing door sample relative to the striking body 317 can be separately adjusted by screwing the cutting drive gear 504 positioned at a convenient operation height position;

the impacting body 317 before detection can be adjusted to a natural vertical state, different transverse positions of the elevator landing door sample can be adjusted to a position opposite to the impacting body 317, and impact detection tests can be carried out on different transverse positions of the elevator landing door;

and by matching the lifting ropes 316 of different lengths, the height of the striker 317 in a natural vertical state can be changed, so that the striker 317 can be adjusted to different height positions relative to the elevator landing door sample;

during detection operation, the cutting drive gear 504 can be independently switched to a position meshed with the pulling gear 408, the pulling gear 408 and the pulling barrel 405 are driven to rotate by screwing the cutting drive gear 504, so that the stay rope 402 in a loose state connected in the barrel groove 406 through the rope sliding block 407 can be driven to be tightened, the stay rope 402 is wound in the pulling barrel 405 along with the rotation of the pulling barrel 405 and the limitation of unidirectional rotation of the ratchet wheel 414 by the pawl 416, the pulling impact body 317 is pulled to move to a proper position forwards and upwards, and the winding of the stay rope 402 outside the pulling barrel 405 does not exceed one circle, so that a messy wire is formed after the winding of the stay rope 402 when the rope sliding block 407 is released;

the rope sliding block 407 is pushed upwards when the impacting body 317 is lifted to a set position, so that the rope sliding block 407 is separated from the barrel groove 406, and the outer end of the pull rope 402 is released, so that an impact detection test for an elevator landing door sample is formed;

and after the pull rope 402 is released, the pull rope 402 is in a natural sagging state of the collar of the impact body 317, so that the operation of re-impact test detection cannot be affected.

As shown in fig. 2, the specific structure of the bracket member 1 is such that side frames 102 are fixed to both right and left ends of a main frame 101, and the side frames 102 and the bottom end of the main frame 101 are fixed together with an operation plane.

As shown in fig. 3 and 4, the specific structure of the horizontal sample setting component 2 is that an inner frame 201 is fixed at the middle position in a main frame 101, a sample setting seat 202 is slidably arranged in the inner frame 201, horizontal sample setting sliding blocks 203 are fixed at the upper end and the lower end of the sample setting seat 202, inner sliding grooves 219 are formed at the upper end and the lower end of the inner frame 201, the outer ends of the horizontal sample setting sliding blocks 203 are slidably inserted into the inner sliding grooves 219, horizontal sample setting guide posts 205 are also transversely arranged at the upper end and the lower end of the inner frame 201, the horizontal sample setting guide posts 205 are fixed in the inner frame 201 through horizontal sample setting guide seats 204 at the two ends, the horizontal sample setting sliding blocks 203 are slidably connected in the horizontal sample setting guide posts 205, a screw rod sliding block 208 is fixed at the middle position at the rear end of the sample setting seat 202, a horizontal sample setting screw rod 207 is transversely arranged at the rear end of the main frame 101, horizontal sample setting screw rods 206 are fixed at the two sides of the rear end of the main frame 101, the two ends of the horizontal sample setting screw rod 207 are screwed into the horizontal sample setting screw rod seat 206, the screw slider 208 is connected in a matching way in the transverse adjustment screw 207, a screw bevel gear 209 is inserted at the shaft end of the transverse adjustment screw 207, which is close to one side of a rotation driving gear 218, a screw reversing bevel gear 210 is meshed with the upper front side of the screw bevel gear 209, a reversing seat 211 is fixed on the outer side of the side frame 102, a reversing shaft 212 is rotatably connected in the reversing seat 211, the screw reversing bevel gear 210 is inserted and fixed at the lower end of the reversing shaft 212, a screw connecting bevel gear 214 is inserted and fixed at the upper end of the reversing shaft 212, a rotation driving bevel gear 215 is meshed with the lower front side of the screw connecting bevel gear 214, a rotation driving seat 216 is fixed on the position of the top surface of the connecting transverse plate 213, which is coaxial with the rotation driving bevel gear 215, a rotation driving shaft 217 is rotatably connected in the rotation driving seat 216, and the rotation driving bevel gear 215 and the rotation driving gear 218 are both inserted and fixed in the rotation driving shaft 217;

the elevator landing door samples to be detected can be fixed at the upper end and the lower end of the sample placing seat 202, and the fixed elevator landing door samples can be connected by bolts and nuts or can be connected in other quick connection modes;

as shown in fig. 9, 10 and 11, the specific structure of the three-linkage driving assembly 5 is that a hand wheel 505 is fixedly inserted at the bottom end of an inner shaft 503, an inner groove 506 is formed in a special-shaped groove 501 in the same path, a nylon seat 507 is fixed outside a switching slide column 502, the nylon seat 507 is slidably connected in the inner groove 506, a cutting drive shaft 508 is arranged at a stakeholder on one side of the bottom surface of a connecting transverse plate 213, a fixed rod 509 is fixed at the bottom end of the switching slide column 502, a movable rod 510 is rotatably connected in the cutting drive shaft 508, a movable rod groove 511 is formed at the outer end of the movable rod 510, a fixed rod slide block 512 is fixed at the outer end of the fixed rod 509, the fixed rod slide block 512 is slidably connected in the movable rod groove 511, a movable magnetic ring 513 is also fixed outside the switching slide column 502, a plurality of fixed magnetic sleeves 514 are respectively positioned at nodes of the special-shaped groove 501, and the plurality of fixed magnetic sleeves 514 are all fixed at the bottom surface of the connecting transverse plate 213;

adjusting the transverse position of the elevator landing door sample;

an operator can move the cutter-drive gear 504 into engagement with the spin-drive gear 218 by holding the hand wheel 505 on the outside of the side frame 102 and pushing the hand wheel 505 so that the switch spool 502 slides in the profiled groove 501 and the nylon seat 507 slides in the inner groove 506;

when the switching slide column 502 moves, the stability of the switching slide column 502 in the moving process can be improved through the sliding fit formed by the rotatable movable rod 510 and the fixed rod 509 fixed at the lower end of the switching slide column 502, so that the switching slide column 502 cannot deviate;

after the cutting drive gear 504 is meshed with the rotary drive gear 218, the movable magnetic ring 513 is magnetically connected to a group of fixed magnetic sleeves 514 opposite to the rotary drive gear 218;

at this time, the inner shaft 503 and the cutting drive gear 504 are driven to rotate by screwing the hand wheel 505, the cutting drive gear 504 drives the rotation of the rotating drive gear 218, the rotating drive gear 218 coaxially drives the rotation of the rotating drive bevel gear 215, the rotating drive bevel gear 215 and the screw connection bevel gear 214 form a fit, the screw connection bevel gear 214 coaxially drives the rotation of the screw reversing bevel gear 210, the screw reversing bevel gear 210 and the screw bevel gear 209 form a fit, the rotation of the transverse adjustment screw 207 can be driven, the transverse adjustment screw 207 is matched with the screw slider 208, the transverse movement of the sample placing seat 202 is driven, and the transverse movement of the elevator landing door sample door can be driven.

As shown in fig. 5 and 6, the specific structure of the impact detection assembly 3 is that the rear end of the upper frame 301 is fixedly connected to the middle of the top end of the main frame 101, the left and right ends of the main body of the upper frame 301 are all provided with adjusting sliding grooves 302 in a penetrating way, the front and rear ends of the main body of the upper frame 301 are all provided with adjusting screw holes 305, two groups of adjusting screw holes 305 are rotatably connected with adjusting screws 306, adjusting screw sliding blocks 303 are cooperatively connected with the adjusting screw 306, the left and right ends of the adjusting screw sliding blocks 303 are fixedly connected with adjusting sliding blocks 304, the two groups of adjusting sliding blocks 304 are respectively and slidably connected with the adjusting sliding grooves 302, the rear end of the adjusting screw 306 is inserted with an inherent adjusting rear bevel gear 307, the adjusted rear connecting bevel gear 308 is meshed with one side of the adjusted rear bevel gear 307, the top end of the main frame 101 is coaxially fixed with the adjusted rear transverse seat 309, the rear transverse seat 309 is rotatably connected with a rear transverse shaft 310, the adjusted rear connecting bevel gear 308 is fixedly inserted with the inner end of the rear 310, the outer end of the rear transverse shaft 310 is inserted with an inherent bevel gear 311, the oblique lower side of the outer bevel gear 311 is meshed with an outer connecting bevel gear 312, and the outer bevel gear is coaxially connected with the outer bevel gear 312;

an inclined shaft seat 313 is fixed on the outer side of the side frame 102, an inclined shaft 314 is rotatably connected in the inclined shaft seat 313, and an external connection bevel gear 312 and a side gear 315 are respectively inserted and fixed at the upper end and the lower end of the inclined shaft 314;

the lifting ropes 316 with different lengths can be selected according to the position requirements of the impacting body 317 for impacting the elevator landing door samples at different heights, and the lifting ropes 316 with different lengths are connected to the bottom end of the adjusting screw rod sliding block 303;

adjustment of the natural vertical position of the striker 317;

the cutting and driving gear 504 is moved to a position meshed with the side gear 315, and at the moment, the movable magnetic ring 513 is magnetically connected to a group of fixed magnetic sleeves 514 opposite to the side gear 315;

the side gear 315 is driven to rotate by screwing the cutting driving gear 504, the side gear 315 coaxially drives the external connection bevel gear 312 to rotate, the external connection bevel gear 312 is matched with the external bevel gear 311, the external bevel gear 311 coaxially drives the adjusted connection bevel gear 308 to rotate, the adjusted connection bevel gear 308 is matched with the adjusted bevel gear 307, the adjusting screw 306 can be driven to rotate, the adjusting screw 306 is matched with the adjusting screw sliding block 303, and the positions of the lifting rope 316 and the impact body 317 in a natural vertical state can be adjusted, so that the impact body 317 is adjusted to a natural vertical starting state which is close to an elevator landing door sample before detection.

As shown in fig. 7 and 8, the specific structure of the dragging assembly 4 is that the upper seat 401 is located on the inclined upper side of the connecting transverse plate 213, the upper seat 401 is fixedly connected in the side frames 102, the inner end of the pulling rope 402 is fixed in the pulling rope fixing seat 418, the pulling rope fixing seat 418 is fixed in the other group of side frames 102, the bottom seat 403 is fixed on the position where the top surface of the connecting transverse plate 213 is opposite to the upper seat 401, the pulling shaft 404 is connected between the upper seat 401 and the bottom seat 403 in a common rotation way, and the pulling barrel 405, the pulling gear 408 and the ratchet wheel 414 are all inserted and fixed in the pulling shaft 404;

a spring column hole 409 is also formed in the position, opposite to the barrel groove 406, of the main surface of the pulling gear 408, a spring column 410 is slidably inserted in the spring column hole 409, a pressure spring 413 is sleeved in the spring column 410, the top end of the pressure spring 413 is clamped and fixed at the top end of the spring column 410, the bottom end of the pressure spring 413 is clamped and fixed at the top surface of the pulling gear 408, and a spring sheet 412 is fixedly connected at the bottom end of the spring column 410;

the outer surface of the bottom seat 403 is provided with a rear clamping slot 411 in a surrounding mode by taking the pulling shaft 404 as the center, the elastic sheet 412 can be slidably connected in the rear clamping slot 411, the top surface of the bottom seat 403 is fixedly provided with a pawl shaft 415, a pawl 416 is rotatably connected in the pawl shaft 415, a torsion spring 417 is sleeved in the pawl shaft 415, one end of the torsion spring 417 is clamped and fixed in the pawl 416, and the other end of the torsion spring 417 is clamped and fixed on the top surface of the bottom seat 403;

before the pulling rope 402 is pulled by rotating the pulling barrel 405, the elastic piece 412 is locked in the rear clamping slot 411, and at this time, the elastic column 410 is elastically recovered to a position not contacting the rope slider 407 under the action of the elastic force of the pressure spring 413;

the winding connection of the pull rope 402 outside the pulling barrel 405 does not exceed one circle, so that when the rope sliding block 407 is released, the pull rope 402 forms a messy wire after winding the surface of the pulling barrel 405, and the natural release action of the rope sliding block 407 is influenced;

under the elastic locking of the pawl 416 to the ratchet 414, only the pulling gear 408 and the pulling barrel 405 are allowed to rotate unidirectionally in a direction of pulling the pulling rope 402;

impact test operation;

the cutting and driving gear 504 is moved to a position opposite to the pulling gear 408, and at the moment, the moving magnetic ring 513 is magnetically connected to a set of fixed magnetic sleeves 514 opposite to the pulling gear 408;

when the striker 317 is in a natural vertical state, the pull rope 402 is in a loose state, at this time, the rope slider 407 can be inserted into the barrel groove 406, the rotation of the pulling gear 408 is driven by the rotation of the cutting and driving gear 504, the pulling gear 408 coaxially drives the pulling barrel 405 to rotate, and the pulling barrel 405 drives the pull rope 402 to be wound, so that the pull rope 402 is tensioned, and the striker 317 is raised to a set height;

because the pawl 416 is limited by the unidirectional elastic clamping of the ratchet 414, the pulling barrel 405 cannot reversely release rotation even after the rotating pulling barrel 405 is not subjected to rotation torsion;

after the impacting body 317 is lifted to a proper height, the elastic sheet 412 is stirred outwards, so that the elastic sheet 412 is separated from the elastic clamping fit of the rear clamping slot 411, the elastic clamping force formed by the elastic sheet 412 and the clamping slot 411 is larger than the elastic force of the pressure spring 413 on the elastic column 410, the elastic force of the pressure spring 413 is larger than the friction force of the rope sliding block 407 in the barrel slot 406 after the pull rope 402 is wound, the elastic column 410 is ejected under the elastic force of the pressure spring 413, the rope sliding block 407 is ejected out of the barrel slot 406, at the moment, the pull rope 402 is released, and the impacting body 317 impacts an elevator landing door sample under the gravity of the impacting body 317, so as to complete an impact detection test;

and (5) checking and recording the damage condition of the elevator sample door after the collision is completed, and finishing the collision detection test of the elevator landing door sample.

Preferably, the rear backing plate 220 is fixed at the upper and lower ends of the rear side of the inner frame 201, and the rear sides of the upper and lower ends of the sample holder 202 slide in the rear backing plate 220, so that adverse effects of impact force in the detection process on a transmission component connected with the sample holder 202 can be eliminated.

Preferably, the lower end of the lifting rope 316 is also provided with a level gauge 318, which can monitor the vertical states of the lifting rope 316 and the impacting body 317 in real time, so that the impacting body 317 can be conveniently and quickly adjusted to a natural vertical state after the impacting body 317 is attached to the elevator landing door plate after the loading is completed before the detection.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (9)

1. A three-linkage driving assembly is characterized by comprising a connecting transverse plate (213), a cutting driving gear (504) and a hand wheel (505); a special-shaped groove (501) is formed in the main surface of the connecting transverse plate (213), a switching sliding column (502) is connected in the special-shaped groove (501) in a sliding mode, an inner shaft (503) is connected in the switching sliding column (502) in a rotating mode, and a cutting driving gear (504) is fixedly inserted at the upper end of the inner shaft (503); the hand wheel (505) is fixedly inserted at the bottom end of the inner shaft (503), an inner groove (506) is further formed in the special-shaped groove (501), a nylon seat (507) is fixed outside the switching slide column (502), the nylon seat (507) is slidably connected in the inner groove (506), a cutting drive rod shaft (508) is arranged on one side of the bottom surface of the connecting transverse plate (213), a fixed rod (509) is fixedly arranged at the bottom end of the switching slide column (502), a movable rod (510) is rotatably connected in the cutting drive rod shaft (508), a movable rod groove (511) is formed in the outer end of the movable rod (510), a fixed rod sliding block (512) is fixedly arranged at the outer end of the fixed rod (509), and the fixed rod sliding block (512) is slidably connected in the movable rod groove (511).

2. The three-linkage driving assembly according to claim 1, wherein a movable magnetic ring (513) is further fixed outside the switching slide column (502), the fixed magnetic sleeves (514) are arranged at the nodes of the special-shaped grooves (501), and the plurality of groups of fixed magnetic sleeves (514) are fixed on the bottom surface of the connecting transverse plate (213).

3. An elevator safety detection device comprising the triple-linkage driving assembly according to claim 1 or 2, and further comprising a bracket member (1), a transverse adjustment sample assembly (2), an impact detection assembly (3) and a dragging assembly (4);

the transverse sample adjusting component (2) comprises a connecting transverse plate (213), the impact detection component (3) comprises a lifting rope (316) and an impact body (317), the dragging component (4) comprises a pull rope (402) and a dragging barrel (405), and the triple-action driving component (5) comprises a cutting driving gear (504);

the rear end of the bracket component (1) is slidingly connected with a sample placing seat (202), a connecting transverse plate (213) is fixedly connected at the side end of the bracket component (1), a rotary driving gear (218) is rotatably arranged at the lower side of the connecting transverse plate (213), the rotary driving gear (218) is in transmission connection with the sample placing seat (202), the rear top end of the bracket component (1) is slidingly connected with an adjusting screw rod sliding block (303), the side end of the bracket component (1) is rotatably provided with a side gear (315), the side gear (315) is in transmission connection with the adjusting screw rod sliding block (303), a lifting rope (316) is hung at the bottom end of the adjusting screw rod sliding block (303), a lantern ring at the top end of the impacting body (317) is fixedly connected at the bottom end of the lifting rope (316), the pulling barrel (405) is screwed in the connecting transverse plate (213), a barrel groove (406) is formed in the pulling barrel (405), a rope sliding block (407) is inserted in the barrel groove (406) in a sliding way, the outer end of the pulling rope (402) is fixed in the rope sliding block (407), the inner end of the pulling rope (402) is fixed at the other end of the bracket component (1), the pulling rope (402) is inserted in the sleeve ring of the impacting body (317), a pulling gear (408) is coaxially connected with the lower side of the pulling barrel (405), a ratchet wheel (414) is coaxially fixed on the lower side of the pulling gear (408), a pawl (416) is arranged on one side of the ratchet wheel (414), and the rotating driving gear (218), the side gears (315) and the pulling gear (408) can be engaged with the cutting drive gear (504) for switching.

4. An elevator safety inspection device according to claim 3, characterized in that: the bracket member (1) comprises a main frame (101), and side frames (102) are fixed at the left and right ends of the main frame (101).

5. The elevator safety detection device according to claim 4, wherein: the transverse sample setting component (2) further comprises an inner frame (201), a transverse guide seat (204), a reversing seat (211) and a reversing shaft (212), the inner frame (201) is fixed in the main frame (101), the sample setting seat (202) is slidably arranged in the inner frame (201), transverse guide blocks (203) are fixed at the upper end and the lower end of the sample setting seat (202), inner sliding grooves (219) are formed in the upper end and the lower end of the inner frame (201), transverse guide posts (205) are further arranged at the upper end and the lower end of the inner frame (201), the transverse guide posts (205) are fixed in the inner frame (201) through the transverse guide seats (204) at the two ends, the transverse guide blocks (203) are slidably connected in the transverse guide posts (205), screw blocks (208) are fixed at the rear end of the sample setting seat (202), transverse guide screw blocks (206) are fixed at the two sides of the rear end of the main frame (101), the outer ends of the transverse guide blocks (207) are slidably inserted into the inner sliding grooves (219), the transverse guide screws (207) are engaged with the transverse guide screws (209) at one side of the transverse guide screws (209) which are engaged with the transverse guide screws (208) in the opposite side of the bevel gears (209), the reversing seat (211) is fixed on the outer side of the side frame (102), the reversing shaft (212) is rotatably connected in the reversing seat (211), the screw reversing bevel gear (210) is fixedly inserted at the lower end of the reversing shaft (212), the screw connecting bevel gear (214) is fixedly inserted at the upper end of the reversing shaft (212), the rotary driving bevel gear (215) is meshed with the lower front side of the screw connecting bevel gear (214), the rotary driving seat (216) is fixedly arranged at the position where the top surface of the connecting transverse plate (213) is coaxial with the rotary driving bevel gear (215), the rotary driving shaft (217) is rotatably connected in the rotary driving seat (216), and the rotary driving bevel gear (215) and the rotary driving gear (218) are fixedly inserted in the rotary driving shaft (217).

6. The elevator safety detection device according to claim 5, wherein: the upper end and the lower end of the rear side inside the inner frame (201) are both fixed with a rear backing plate (220), and the rear sides of the upper end and the lower end of the sample placing seat (202) lean against and slide in the rear backing plate (220).

7. An elevator safety detection device according to claim 4 or 5, characterized in that: the impact detection assembly (3) further comprises an upper frame (301) and an adjusting rear connection bevel gear (308), the rear end of the upper frame (301) is fixedly connected to the middle of the top end of the main frame (101), adjusting sliding grooves (302) are formed in the left end and the right end of the main body of the upper frame (301), adjusting screw rotating holes (305) are formed in the front end and the rear end of the main body of the upper frame (301), adjusting screws (306) are rotatably connected in the two groups of adjusting screw rotating holes (305), adjusting screw sliding blocks (303) are cooperatively connected in the adjusting screws (306), adjusting sliding blocks (304) are fixedly connected at the left end and the right end of the adjusting screw sliding blocks (303), the two groups of adjusting sliding blocks (304) are respectively and slidably connected in the adjusting sliding grooves (302), the rear end of the adjusting screw (306) is fixedly inserted into the adjusting rear bevel gear (307), the adjusting rear connection bevel gear (308) is meshed on one side of the adjusting rear bevel gear (307), a rear transverse seat (309) is fixedly arranged at the top end of the main frame (101), a rear transverse seat (309) is rotatably connected with a rear transverse shaft (310), the adjusting rear transverse shaft (308) is fixedly connected in the transverse shaft (310), the inner end of the adjusting bevel gear (310) is fixedly connected with the rear end of the rear transverse shaft (310) in a coaxial bevel gear (311), the outer bevel gear (312) in a coaxial connection mode, the outer bevel gear (312) is meshed with the outer bevel gear (311), an inclined shaft seat (313) is fixed on the outer side of the side frame (102), an inclined shaft (314) is rotatably connected in the inclined shaft seat (313), and an external connection bevel gear (312) and a side gear (315) are respectively inserted and fixed at the upper end and the lower end of the inclined shaft (314).

8. An elevator safety detection device according to claim 3, 4, 5 or 6, characterized in that: the lower end of the lifting rope (316) is also provided with a level meter (318).

9. An elevator safety detection device according to claim 4, 5 or 6, characterized in that: the dragging component (4) further comprises an upper side seat (401), a bottom side seat (403), a spring piece (412) and a pull rope fixing seat (418), wherein the upper side seat (401) is positioned on the inclined upper side of the connecting transverse plate (213), the upper side seat (401) is fixedly connected in the side frame (102), the inner end of the pull rope (402) is fixed in the pull rope fixing seat (418), the pull rope fixing seat (418) is fixed in the other group of side frames (102), the bottom side seat (403) is fixed on the top surface of the connecting transverse plate (213), the common rotation connection between the upper side seat (401) and the bottom side seat (403) is provided with a dragging shaft (404), the dragging barrel (405), the dragging gear (408) and the ratchet wheel (414) are all inserted and fixed in the dragging shaft (404), the main surface of the dragging gear (408) is also provided with a spring column hole (409), the inner end of the spring column (410) is inserted and connected in a sliding way in the spring column (410), the top end of the spring (413) is clamped on the top end of the spring column (410), the top end of the spring (413) is clamped on the top surface of the spring column (413), the bottom end of the spring (412) is clamped on the bottom end of the spring column (412) and the bottom end (411) is clamped in the groove (411), the top surface of the bottom side seat (403) is fixed with a pawl shaft (415), a pawl (416) is rotationally connected in the pawl shaft (415), a torsion spring (417) is sleeved in the pawl shaft (415), one end of the torsion spring (417) is clamped in the pawl (416), and the other end of the torsion spring is clamped on the top surface of the bottom side seat (403).