CN220226947U

CN220226947U - Protective bracket

Info

Publication number: CN220226947U
Application number: CN202321487561.XU
Authority: CN
Inventors: 樊剑波
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-22
Anticipated expiration: 2033-06-12

Abstract

The utility model relates to the technical field of coal mine protection equipment, in particular to a protection support, which comprises a protection support main body, wherein a lifting mechanism is arranged in the protection support main body, the lifting mechanism comprises a limiting sleeve rod, two groups of limiting sleeve rods are arranged at the lower end of the protection support main body, a motor is fixedly connected to the inner bottom end of each limiting sleeve rod, a limiting inserted rod is inserted into each limiting sleeve rod, a threaded rod is fixedly connected to the top end of each motor, the threaded rod is inserted into each limiting inserted rod, a supporting plate is fixedly connected to the top end of each limiting inserted rod, a base is arranged at the bottom end of each lifting mechanism, support bottom plates are fixedly connected to the bottom ends of the two groups of limiting sleeve rods, a first limiting sleeve is fixedly connected to the top end of each supporting plate, and a buffer spring is fixedly connected to the top end of each first limiting sleeve. The utility model reduces the pressure through the buffer spring, prolongs the service life, prevents soil on two sides from falling off, and increases the practicability and the safety of the device.

Description

Protective bracket

Technical Field

The utility model relates to the technical field of coal mine protection equipment, in particular to a protection bracket.

Background

The coal mine is an area where human beings mine coal resources in a mining area rich in coal and is generally divided into an underground coal mine and an open pit coal mine, when a coal seam is far away from the ground surface, coal is generally selected to be mined into an underground mining roadway, the underground coal mine is used, the geological environment is deteriorated due to the fact that the mining depth is increased or not increased along with the increase of the coal demand, roof accidents frequently happen in the tunneling engineering of the coal mine comprehensive excavator along with the increase of the ground stress, and the supporting operation is difficult to be performed efficiently due to the limited space of a tunneling working surface.

In order to ensure the personal safety of tunneling operators, overhead operation is avoided, safety level is improved, tunneling speed is increased, novel temporary support frames for anchor bolt support operation are not affected, thus the safety management level of a tunneling roof is improved, tunneling working face working space is effectively increased, a good working environment is created for operators, further working efficiency is improved, the support strength of traditional simple supports in traditional tunneling is low, impact resistance is low, meanwhile, the height of a protective support is inconvenient to adjust in the using process, the protective support is inconvenient to move according to requirements, the using effect of the protective support is reduced, and the protective support is inconvenient to use in tunneling, so that the problem is solved.

Disclosure of Invention

In order to overcome the technical problems described above, the present utility model is directed to providing a protective bracket, so as to solve the problems of low supporting strength, low anti-collision capability, inconvenience in adjusting the height of the protective bracket during use, and inconvenience in moving the protective bracket according to requirements.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a protection support, includes protection support main part, the inside elevating system that is provided with of protection support main part, elevating system includes spacing loop bar, protection support main part's lower extreme is provided with two sets of spacing loop bars, and the inside bottom fixedly connected with motor of spacing loop bar, the inside of spacing loop bar is inserted and is equipped with spacing inserted bar, the top fixedly connected with threaded rod of motor, and the threaded rod inserts the inside of establishing at spacing inserted bar, the top fixedly connected with backup pad of spacing inserted bar, elevating system's bottom is provided with the base, the base includes the fixed box, two sets of the bottom fixedly connected with support bottom plate of spacing loop bar.

Preferably, the top fixedly connected with first stop collar of backup pad, and the top fixedly connected with buffer spring of first stop collar, buffer spring's top fixedly connected with second stop collar.

Preferably, the top fixedly connected with guard plate of second stop collar, and the bottom both sides fixedly connected with baffle of guard plate.

Preferably, the top fixedly connected with fixed box of support bottom plate, and the inside top fixedly connected with pneumatic cylinder of fixed box, the bottom fixedly connected with fixed plate of pneumatic cylinder, and the bottom fixedly connected with two sets of connecting blocks of fixed plate, the lower extreme fixedly connected with rotor plate of connecting block.

Preferably, a notch is formed in the lower end of the rotating plate, a wheel is inserted in the notch of the rotating plate, and a fixed inserting rod is inserted in the middle of the wheel and is movably connected with the wheel.

Preferably, the front end of the fixed inserted link is inserted in the front end of the rotating plate and is movably connected with the rotating plate, the rear end of the fixed inserted link is inserted in the rear end of the rotating plate and is movably connected with the rotating plate, and fastening bolts are inserted at two sides of the bracket bottom plate and are in threaded connection with the bracket bottom plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. this protective bracket is provided with buffer spring, guard plate, baffle, has brought when needs support the protection with this kind of design, and the guard plate supports colliery underworkings top, prevents to collapse, improves the security, is provided with buffer spring between guard plate and the backup pad simultaneously, alleviates pressure through buffer spring, increase of service life, and the both sides of guard plate are provided with the baffle, prevent that both sides earth from dropping, have increased the practicality and the security of device.

2. This protective bracket is provided with fixed case, pneumatic cylinder, fixed inserted bar, fastening bolt has brought when needing to remove or fix with this kind of design, through setting up fixed case, starts the pneumatic cylinder, under the effect of fixed inserted bar, the in-process of being convenient for at the use removes this protective bracket to make things convenient for operating personnel's setting, when fixed, fixed inserted bar withdraws, fastening bolt fixes its whole afterwards, has further improved the stability and the security performance of this protective bracket in the use.

Drawings

FIG. 1 is a schematic elevational cross-sectional view of the structure of the present utility model;

FIG. 2 is a schematic side view of the structure of the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 111. a protective bracket body; 2. a lifting mechanism; 211. a limit loop bar; 212. a motor; 213. a threaded rod; 214. a limit inserted link; 215. a support plate; 216. a first stop collar; 217. a buffer spring; 218. the second limit sleeve; 219. a protection plate; 220. a baffle; 3. a base; 311. a fixed box; 312. a hydraulic cylinder; 313. a fixing plate; 314. a connecting block; 315. a rotating plate; 316. fixing the inserted link; 317. a wheel; 318. a bracket base plate; 319. and (5) fastening a bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an embodiment of the present utility model is provided: the utility model provides a protection support, including protection support main part 111, protection support main part 111 inside is provided with elevating system 2, elevating system 2 includes spacing loop bar 211, protection support main part 111 lower extreme is provided with two sets of spacing loop bars 211, and the inside bottom fixedly connected with motor 212 of spacing loop bar 211, spacing inserted bar 214 is inserted to the inside of spacing loop bar 211, the top fixedly connected with threaded rod 213 of motor 212, and threaded rod 213 inserts the inside of establishing at spacing inserted bar 214, the top fixedly connected with backup pad 215 of spacing inserted bar 214, elevating system 2's bottom is provided with base 3, base 3 includes fixed box 311, the bottom fixedly connected with support bottom plate 318 of two sets of spacing loop bars 211.

As a further aspect of the present utility model, the top end of the supporting plate 215 is fixedly connected with the first stop collar 216, the top end of the first stop collar 216 is fixedly connected with the buffer spring 217, and the top end of the buffer spring 217 is fixedly connected with the second stop collar 218, so that the stones falling through the elasticity of the buffer spring 217 can be conveniently damped by adopting the design.

Further, the top end of the second stop collar 218 is fixedly connected with a protection plate 219, and two sides of the bottom end of the protection plate 219 are fixedly connected with a baffle 220, so that stones falling from two sides can be protected by the baffle 220.

Further, the top fixedly connected with fixed box 311 of support bottom plate 318, and the inside top fixedly connected with pneumatic cylinder 312 of fixed box 311, the bottom fixedly connected with fixed plate 313 of pneumatic cylinder 312, and the bottom fixedly connected with two sets of connecting blocks 314 of fixed plate 313, the lower extreme fixedly connected with rotor plate of connecting block adopts this kind of design to be convenient for make through the fixed plate 313 can remove protective bracket main part 111, makes it more convenient.

Further, a notch is formed at the lower end of the rotation plate 315, a wheel 317 is inserted in the notch of the rotation plate 315, and a fixing insert 316 is inserted in the middle of the wheel 317 and movably connected with the wheel 317.

Further, the front end of the fixed insert rod 316 is inserted into the front end of the rotary plate 315 and movably connected with the front end of the rotary plate 315, and the rear end of the fixed insert rod 316 is inserted into the rear end of the rotary plate 315 and movably connected with the rear end of the rotary plate, and fastening bolts 319 are inserted into the two sides of the bracket bottom plate 318 and are in threaded connection with the two sides of the bracket bottom plate.

Working principle: when the protection is supported to the needs, guard plate 219 supports colliery underworkings top, prevents to collapse, is provided with buffer spring 217 between guard plate 219 and the backup pad 215 simultaneously, alleviates pressure through buffer spring 217, and the both sides of guard plate 219 are provided with baffle 220, prevent that both sides earth from dropping, start motor 212 simultaneously, drive 213 rotation for 214 height-adjusting according to the ore tunnel.

When the movable or fixed type protective bracket is required to be moved or fixed, the hydraulic cylinder 312 is started by arranging the fixing box 311, so that the threaded rod 213 wants to move downwards, then the protective bracket is moved under the action of the fixing inserted rod 316, and when the protective bracket is fixed, the hydraulic cylinder 312 is started again, so that the fixing inserted rod 316 is retracted, and then the whole protective bracket is fixed by fastening the bolt 319.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A protective cradle comprising a protective cradle body (111), characterized in that: the protection support is characterized in that a lifting mechanism (2) is arranged inside the protection support body (111), the lifting mechanism (2) comprises a limiting sleeve rod (211), two groups of limiting sleeve rods (211) are arranged at the lower end of the protection support body (111), a motor (212) is fixedly connected to the bottom end of the inside of the limiting sleeve rod (211), a limiting inserted rod (214) is inserted into the inside of the limiting sleeve rod (211), a threaded rod (213) is fixedly connected to the top end of the motor (212), the threaded rod (213) is inserted into the inside of the limiting inserted rod (214), a supporting plate (215) is fixedly connected to the top end of the limiting inserted rod (214), a base (3) is arranged at the bottom end of the lifting mechanism (2), and the base (3) comprises a fixed box (311) and two groups of supporting base plates (318) are fixedly connected to the bottom end of the limiting sleeve rod (211).

2. A protective cradle according to claim 1, wherein: the top of backup pad (215) fixed connection first stop collar (216), and the top fixedly connected with buffer spring (217) of first stop collar (216), the top fixedly connected with second stop collar (218) of buffer spring (217).

3. A protective cradle according to claim 2, wherein: the top fixedly connected with guard plate (219) of second stop collar (218), and bottom both sides fixedly connected with baffle (220) of guard plate (219).

4. A protective cradle according to claim 3, wherein: the top fixedly connected with fixed case (311) of support bottom plate (318), and inside top fixedly connected with pneumatic cylinder (312) of fixed case (311), the bottom fixedly connected with fixed plate (313) of pneumatic cylinder (312), and the bottom fixedly connected with two sets of connecting blocks (314) of fixed plate (313), the lower extreme fixedly connected with rotor plate (315) of connecting block (314).

5. The protective cradle of claim 4, wherein: the lower extreme of rotor plate (315) is provided with a notch, and the notch interpolation of rotor plate (315) is equipped with wheel (317), the middle inside of wheel (317) is inserted and is equipped with fixed inserted bar (316) and swing joint with it.

6. A protective cradle according to claim 5, wherein: the front end of the fixed inserted link (316) is inserted in the front end of the rotary plate (315) and is movably connected with the rotary plate, the rear end of the fixed inserted link (316) is inserted in the rear end of the rotary plate (315) and is movably connected with the rotary plate, and fastening bolts (319) are inserted at two sides of the bracket bottom plate (318) and are in threaded connection with the bracket bottom plate.