CN214828825U

CN214828825U - Mining explosion-proof lifting platform

Info

Publication number: CN214828825U
Application number: CN202121624139.5U
Authority: CN
Inventors: 王全营; 胡鸣超; 姜甜
Original assignee: Henan Huanghe Explosion Proof Crane Co Ltd
Current assignee: Henan Huanghe Explosion Proof Crane Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-23
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to a mining explosion-proof lift platform, including the lifter plate, the fly leaf, mounting panel and bottom plate, the four corners department of mounting panel bottom is fixed with the stand, the bottom of stand is fixed on the bottom plate, the centre of mounting panel is equipped with the thread bush that runs through the mounting panel, the periphery and the mounting panel of thread bush rotate to be connected, the bottom of thread bush extends to the mounting panel below and is fixed with first bevel gear, thread connection has the lead screw in the thread bush, the lead screw top extends to the mounting panel top and is fixed with the fly leaf, the bottom of lead screw run through first bevel gear and with first bevel gear threaded connection, the mounting panel bottom is fixed with and is used for driving first bevel gear pivoted manual drive mechanism, the telescopic bracket is cut to the periphery of fly leaf. The manual driving mechanism drives the first bevel gear to rotate, so that the lead screw, the movable plate and the scissor type telescopic support are sequentially driven to move up and down, the scissor type telescopic support pushes the lifting plate to realize height adjustment, a hydraulic cylinder is not required, the problem of cylinder explosion is avoided, and the safety is good.

Description

Mining explosion-proof lifting platform

Technical Field

The utility model belongs to the technical field of play to rise machinery, especially relate to a mining explosion-proof lift platform.

Background

The lifting platform is special equipment for high-altitude operation with wide application, is popularized to all corners of social life along with the development of scientific technology of modern society, is more and more widely applied, and can not be separated from the lifting platform in building, civil engineering or daily life of people. However, most of the existing lifting platforms in the industry realize the lifting of the lifting platform by driving the hinged rod to move through the hydraulic cylinder. However, in some occasions where explosion is easy to occur, such as coal mines, workshops for combustible and explosive dust particles, and the like, if the lifting platform is driven by the hydraulic cylinder, the risk of cylinder explosion exists, which may cause safety accidents and harm to the personal safety of workers. Therefore, the design of an anti-explosion lifting platform used in special environments such as coal mines and the like is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mining explosion-proof lift platform for there is the technical problem of potential safety hazard when solving lift platform among the prior art and carrying out the operation in the colliery.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: provides a mining explosion-proof lifting platform, which comprises a lifting plate and a movable plate which are arranged at intervals from top to bottom in sequence, the bottom of the screw rod penetrates through the first bevel gear and is in threaded connection with the bottom of the movable plate, a manual driving mechanism for driving the first bevel gear to rotate is fixed at the bottom of the mounting plate, and a plurality of scissor type telescopic supports are arranged at the periphery of the movable plate at even intervals; cut fork telescopic bracket including the crisscross outer fork of cutting that sets up around, interior fork of cutting, the middle part of cutting the fork outward is articulated mutually through the pivot with the middle part of interior fork of cutting, the one end of pivot extends to interior fork outside and fixes the periphery at the fly leaf, the top of cutting the fork outward all articulates with the top of interior fork of cutting has last hinge bar, the top of going up the hinge bar is articulated mutually with the periphery of lifter plate, the bottom of cutting the fork outward all articulates with the bottom of interior fork of cutting has lower hinge bar, the bottom of lower hinge bar is articulated mutually with the periphery of mounting panel.

Preferably, manual drive mechanism includes the mounting box of fixed connection in the mounting panel bottom, and the mounting box is the box structure that inside cavity set up, and the mounting box is inside to be connected with the transmission shaft that runs through the mounting box through bearing rotation, and the one end of transmission shaft extends to the mounting box outside and fixedly connected with crank, and the other end of transmission shaft extends to the mounting box outside and fixedly connected with second bevel gear, and second bevel gear meshes with first bevel gear mutually.

Preferably, the top end of the threaded sleeve extends to the upper side of the mounting plate, and the periphery of the top of the threaded sleeve is fixedly connected with a limiting ring.

Preferably, the periphery of lifter plate is fixed with the last installation piece that a plurality of intervals set up, goes up to be fixed with the last round pin axle that the level set up on the installation piece, goes up the top fixedly connected with of hinge bar and goes up the installation cover, goes up the installation cover and rotates to be connected at last round pin outside axle.

Preferably, the periphery of mounting panel is fixed with the lower installation piece that a plurality of intervals set up, is fixed with the lower round pin axle that the level set up on the lower installation piece, and the bottom fixedly connected with of lower hinge bar installs the cover down, and lower installation cover rotates and connects round pin axle outside down.

Preferably, the number of the scissor type telescopic supports is four, and the four scissor type telescopic supports are uniformly arranged outside the movable plate at intervals.

The utility model has the advantages that: simple structure, installation convenient to use, the cost of manufacture is low, through setting up manual drive mechanism, the lead screw, the lifter plate, the fly leaf, the mounting panel, bottom plate and scissor fork telescopic bracket, manual drive mechanism drives first bevel gear and rotates, because the existence of the inside screw hole of thread bush and first bevel gear, first bevel gear rotates and drives the lead screw up-and-down motion, lead screw motion drives the fly leaf in proper order, scissor fork telescopic bracket up-and-down motion, scissor fork telescopic bracket promotes the lifter plate and realizes altitude mixture control, not only need not to adopt the pneumatic cylinder to realize going up and down, can avoid appearing the problem that the pneumatic cylinder explodes the jar, the security is good, the demand that lift platform used in the colliery has been satisfied, and drive the lifter plate motion through scissor fork telescopic bracket, make the device's altitude mixture control scope wider, can be better satisfy the user demand.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the connection between the manual driving mechanism and the first bevel gear.

Reference numerals: 1-lifting plate, 2-movable plate, 3-mounting plate, 4-bottom plate, 5-upright post, 6-thread bush, 7-first bevel gear, 8-threaded hole, 9-lead screw, 10-spacing ring, 11-outer scissors fork, 12-inner scissors fork, 13-rotating shaft, 14-upper hinge rod, 15-upper mounting block, 16-upper pin shaft, 17-upper mounting bush, 18-lower hinge rod, 19-lower mounting block, 20-lower pin shaft, 21-lower mounting bush, 22-mounting box, 23-transmission shaft, 24-crank, 25-second bevel gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

The direction of the scissor type telescopic support is taken as the front, and the direction of the movable plate 2 is taken as the back.

As shown in fig. 1, the utility model discloses a lifter plate 1, fly leaf 2, mounting panel 3 and bottom plate 4 that the interval set up in proper order from the top down, lifter plate 1, fly leaf 2, mounting panel 3, the equal level of bottom plate 4 set up and are parallel to each other, and the four corners department of mounting panel 3 bottom is fixed with vertical downward stand 5 that sets up, and the bottom of stand 5 is fixed on bottom plate 4. As shown in fig. 2, the intermediate position of mounting panel 3 is equipped with the thread bush 6 that runs through mounting panel 3, the periphery of thread bush 6 is passed through the bearing and is connected with the rotation of mounting panel 3, the bottom of thread bush 6 extends to mounting panel 3 below and is fixed with first bevel gear 7, the inside threaded hole 8 that has seted up of first bevel gear 7, the inside threaded connection of thread bush 6 has lead screw 9, lead screw 9's top extends to mounting panel 3 top and with the bottom fixed connection of fly leaf 2, lead screw 9's bottom runs through first bevel gear 7 and with first bevel gear 7 threaded connection, the top of thread bush 6 extends to the top of mounting panel 3, the periphery fixedly connected with spacing ring 10 at thread bush 6 top, through setting up spacing ring 10, increase the stability that thread bush 6 and mounting panel 3 are connected, prevent to take place not hard up between thread bush 6 and the bearing and drop down. A manual driving mechanism for driving the first bevel gear 7 to rotate is fixed at the bottom of the mounting plate 3. The scissors fork telescopic bracket that the even interval of a plurality of set up is installed to the periphery of fly leaf 2, and the quantity of scissors fork telescopic bracket is four in this embodiment, and four scissors fork telescopic bracket even intervals set up in fly leaf 2 outsides, reinforcing the device stability at the lift in-process. The scissor type telescopic support comprises outer scissor forks 11 and inner scissor forks 12 which are arranged in a staggered mode from front to back, the middle parts of the outer scissor forks 11 and the middle parts of the inner scissor forks 12 are hinged through a rotating shaft 13, one end of the rotating shaft 13 extends to the outer parts of the inner scissor forks 12 and is fixed on the periphery of the movable plate 2, the other end of the rotating shaft 13 extends to the outer parts of the outer scissor forks 11 and is fixedly sleeved with a limiting nut (not shown in the figure) for preventing the outer scissor forks 11 and the inner scissor forks 12 from falling off from the rotating shaft 13, the top ends of the outer scissor forks 11 and the top ends of the inner scissor forks 12 are hinged with an upper hinged rod 14, the outer scissor forks 11 and the inner scissor forks 12 are arranged in a staggered mode from front to back with the upper hinged rod 14, the top parts of the upper hinged rod 14 are hinged with the periphery of the lifting plate 1, a plurality of upper mounting blocks 15 which are arranged at intervals are fixed on the periphery of the lifting plate 1, upper mounting blocks 15 are fixed with upper pin shafts 16 which are arranged horizontally, and the top parts of the upper rod 14 are fixedly connected with upper hinged sleeves 17, go up the installation cover 17 and rotate and connect in last round pin axle 16 outside, the bottom of outer scissors fork 11 all articulates with the bottom of interior scissors fork 12 has lower hinge bar 18, outer scissors fork 11, interior scissors fork 12 all with hinge bar 18 crisscross setting from beginning to end down, the bottom of hinge bar 18 is articulated mutually with the periphery of mounting panel 3 down, the periphery of mounting panel 3 is fixed with the lower installation piece 19 of a plurality of intervals setting, be fixed with the lower round pin axle 20 that the level set up on the lower installation piece 19, the bottom fixedly connected with of lower hinge bar 18 is installation cover 21 down, lower installation cover 21 rotates and connects round pin axle 20 outsidely under.

Preferably, as shown in fig. 2, the manual driving mechanism includes a mounting box 22 fixedly connected to the bottom of the mounting plate 3, the mounting box 22 is a box structure with a hollow interior, a transmission shaft 23 penetrating through the mounting box 22 is rotatably connected to the interior of the mounting box 22 through a bearing, one end of the transmission shaft 23 extends to the exterior of the mounting box 22 and is fixedly connected with a crank 24, the other end of the transmission shaft 23 extends to the exterior of the mounting box 22 and is fixedly connected with a second bevel gear 25, and the second bevel gear 25 is engaged with the first bevel gear 7. By rotating the crank 24, the crank 24 drives the transmission shaft 23 to rotate, and the transmission shaft 23 sequentially drives the second bevel gear 25 and the first bevel gear 7 to rotate, so as to drive the screw rod 9 to move up and down along the threaded sleeve 6.

The utility model discloses a theory of operation: when the lifting plate 1 needs to be lifted, the crank 24 is rotated in the forward direction, the crank 24 drives the transmission shaft 23 to rotate, the transmission shaft 23 sequentially drives the second bevel gear 25 and the first bevel gear 7 to rotate, due to the existence of the threaded sleeve 6 and the threaded hole 8 in the first bevel gear 7, the first bevel gear 7 rotates to drive the screw rod 9 to move upwards along the threaded sleeve 6, the screw rod 9 moves to drive the movable plate 2 to move upwards, so that the lower hinge rod 18, the outer scissors 11 and the inner scissors 12 are driven to move towards the direction close to the upper hinge rod 14, and the scissors type telescopic support gradually tends to be in a vertical state, so that the lifting plate 1 is pushed to lift; when the lifting plate 1 needs to be lowered, the crank handle 24 is rotated reversely, the crank handle 24 drives the transmission shaft 23 to rotate, the transmission shaft 23 sequentially drives the second bevel gear 25, the first bevel gear 7 rotates, due to the existence of the threaded sleeve 6 and the threaded hole 8 inside the first bevel gear 7, the first bevel gear 7 rotates to drive the screw rod 9 to move downwards along the threaded sleeve 6, the screw rod 9 moves to drive the movable plate 2 to move downwards, the upper hinge rod 14, the outer scissor 11 and the inner scissor 12 are driven to move towards the direction close to the lower hinge rod 18, and the scissor type telescopic support gradually tends to be in a folded state, so that the lifting plate 1 is pulled to descend. The utility model discloses need not to adopt the pneumatic cylinder to realize going up and down, can avoid appearing the problem that the pneumatic cylinder explodes the jar, the security is good, has satisfied the demand that lift platform used in the colliery.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a mining explosion-proof lift platform which characterized in that: comprises a lifting plate and a movable plate which are arranged at intervals from top to bottom in sequence, the bottom of the screw rod penetrates through the first bevel gear and is in threaded connection with the bottom of the movable plate, a manual driving mechanism for driving the first bevel gear to rotate is fixed at the bottom of the mounting plate, and a plurality of scissor type telescopic supports are arranged at the periphery of the movable plate at even intervals; cut fork telescopic bracket including the crisscross outer fork of cutting that sets up around, interior fork of cutting, the middle part of cutting the fork outward is articulated mutually through the pivot with the middle part of interior fork of cutting, the one end of pivot extends to interior fork outside and fixes the periphery at the fly leaf, the top of cutting the fork outward all articulates with the top of interior fork of cutting has last hinge bar, the top of going up the hinge bar is articulated mutually with the periphery of lifter plate, the bottom of cutting the fork outward all articulates with the bottom of interior fork of cutting has lower hinge bar, the bottom of lower hinge bar is articulated mutually with the periphery of mounting panel.

2. The mining explosion-proof lifting platform according to claim 1, characterized in that: manual actuating mechanism includes the mounting box of fixed connection in the mounting panel bottom, and the mounting box is the box structure that inside cavity set up, and the mounting box is inside to be connected with the transmission shaft that runs through the mounting box through bearing rotation, and the one end of transmission shaft extends to the mounting box outside and fixedly connected with crank, and the other end of transmission shaft extends to the mounting box outside and fixedly connected with second bevel gear, and second bevel gear meshes with first bevel gear mutually.

3. The mining explosion-proof lifting platform according to claim 2, characterized in that: the top of thread bush extends to the top of mounting panel, the periphery fixedly connected with spacing ring at thread bush top.

4. The mining explosion-proof lifting platform according to claim 2, characterized in that: the periphery of lifter plate is fixed with the last installation piece that a plurality of intervals set up, goes up to be fixed with the last round pin axle that the level set up on the installation piece, goes up the top fixedly connected with of hinge bar and goes up the installation cover, goes up the installation cover and rotates to be connected at last round pin outside of axle.

5. The mining explosion-proof lifting platform according to claim 2, characterized in that: the periphery of mounting panel is fixed with the lower installation piece that a plurality of intervals set up, is fixed with the lower round pin axle that the level set up on the lower installation piece, and the bottom fixedly connected with of lower hinge bar installs the cover down, and lower installation cover rotates to be connected and is selling the axle outside down.

6. The mining explosion-proof lifting platform according to any one of claims 1 to 5, characterized in that: the number of the scissor type telescopic supports is four, and the four scissor type telescopic supports are uniformly arranged outside the movable plate at intervals.