CN213691342U

CN213691342U - Mobilizable environmental protection publicity board

Info

Publication number: CN213691342U
Application number: CN202022495180.9U
Authority: CN
Inventors: 温东伟; 冯彦玉; 马祎鑫; 刘洁; 马永财
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-13
Anticipated expiration: 2030-11-02

Abstract

The utility model relates to an environmental protection propaganda technical field just discloses a mobilizable environmental protection publicity board, including the publicity board body, the lower extreme fixedly connected with publicity board supporting leg of publicity board body, the lower fixed surface of publicity board supporting leg is connected with the wheel base, wheel base lower surface is provided with the universal wheel, the universal wheel lower extreme is provided with the chucking device, the front side of publicity board supporting leg is provided with lever support device. When this mobilizable environmental protection publicity board used, through setting up the chucking device, the effectual wheel of having avoided the publicity board takes place not hard up, when going the universal wheel to the mouth of placing of middle standing groove upper end, the universal wheel translation downwards, the chucking ball is fixed the universal wheel and has been avoided its indiscriminate effectual environmental protection publicity board of having avoided taking place not hard up at long-term in-process universal wheel of placing, the effectual indiscriminate of having avoided because of the environmental protection publicity board causes the injury to near personnel.

Description

Mobilizable environmental protection publicity board

Technical Field

The utility model relates to an environmental protection propaganda technical field specifically is a mobilizable environmental protection publicity board.

Background

The method and means of the environmental protection publicity board are engineering, administrative, innovative research and development, legal, economic, propaganda and education and the like, most of the existing environmental publicity boards are provided with movable wheels which can be conveniently moved, but the locking devices of the movable wheels are not good enough, and are easy to loosen in the long-term placing process, so that the movable wheels cannot be well fixed, and people can easily depend on the movable wheels under the condition that the people are not aware of the movable wheels, thus the movable wheels are easy to cause dangerous injury to people, and other people around the movable wheels can be injured.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a mobilizable environmental protection publicity board possesses advantages such as wheel locking effect is good, has solved the not good problem of wheel locking effect.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a movable environment-friendly publicity board comprises a publicity board body, wherein publicity board supporting legs are fixedly connected at the lower ends of the publicity board body, wheel bases are fixedly connected at the lower surfaces of the publicity board supporting legs, universal wheels are arranged at the lower surfaces of the wheel bases, clamping devices are arranged at the lower ends of the universal wheels, lever supporting devices are arranged at the front sides of the publicity board supporting legs, each clamping device comprises a clamping shell, each clamping shell is movably sleeved at the lower end of each universal wheel, three placing grooves are respectively formed in each clamping shell, springs are fixedly connected at the upper ends of the inner walls of the placing grooves at the front sides, clamping balls are fixedly connected at the other ends of the springs, each lever supporting device comprises a movable groove, the movable grooves are respectively formed in the left end and the right end of the front side surface of the publicity board supporting leg, the connecting shaft is movably sleeved with a connecting rod, the left side and the right side of the connecting rod are respectively and rotatably connected with a supporting lever, the left side and the right side of the upper end of the connecting rod are respectively provided with a clamping groove, the inner wall of the movable groove is also fixedly connected with a spring, and the other end of the spring is fixedly connected with a clamping block.

Preferably, semicircular grooves are formed in the front side surface and the rear side surface of the wheel base.

Preferably, the height of the clamping shell is smaller than the height of the universal wheel plus the height of the wheel base, and the clamping shell is fixedly connected to the ground.

Preferably, the diameter of the clamping ball is the same as that of the semicircular grooves formed in the front side and the rear side of the wheel base.

Preferably, the length of the supporting lever is equal to the height of the movable groove arranged on the publicity board supporting leg.

Preferably, the shape of the clamping groove is a semicircular groove, the shape of the clamping block is a sphere, the diameter of the clamping block is the same as that of the clamping groove, and the connecting rod is clamped with the clamping block through the clamping groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a mobilizable environmental protection publicity board possesses following beneficial effect:

1. when the movable environment-friendly publicity board is used, the loosening of the wheels of the publicity board is effectively avoided by arranging the clamping device, when the universal wheel is driven to the placing opening at the upper end of the middle placing groove, the universal wheel translates downwards to enable the two clamping round balls to contract into the placing groove, the universal wheel loses the blocking and continues descending, when the universal wheel translates to the bottom surface in the middle placing groove, the two clamping round balls are just parallel to the semicircular grooves arranged at the front side and the rear side of the wheel base, the spring loses the extrusion force to start to release the thrust force to enable the two clamping round balls to move relatively, so that the clamping round balls can be just clamped in the semicircular grooves on the wheel base, the universal wheel can be fixed through the clamping round balls to avoid the disorder movement, and the loosening of the universal wheel in the long-term placing process of the environment-friendly publicity board is effectively avoided, the harm to nearby personnel caused by the disorder of the environmental protection publicity board is effectively avoided.

2. When the movable environment-friendly publicity board is used, the environment-friendly publicity board can be moved again in a more labor-saving manner by arranging the lever supporting device, a worker can generate extrusion force on the clamping blocks by pulling one end of the connecting rod to enable the two clamping blocks to move oppositely and contract into the channel of the movable groove, so that the clamping blocks are not clamped with the clamping grooves, when the connecting rod rotates to be horizontal, the worker pulls the supporting lever, the other end of the supporting lever can rotate to be in contact with the ground, the length of the supporting lever is equal to the height of the movable groove arranged on the publicity board supporting leg, so that the connecting rod is supported, the worker only needs to press the other end of the connecting rod, and the universal wheel on the publicity board supporting leg is separated from the clamping device through the connecting rod with the lowest force through the Archimedes's lever law, the work intensity of the staff is effectively reduced, the physical and mental health of the staff is improved, and the publicity board can be moved again.

Drawings

FIG. 1 is a schematic view of a movable environmental publicity board structure of the present invention;

FIG. 2 is a schematic view of a connection structure of a movable environmental publicity board of the present invention;

FIG. 3 is a front view of the clamping device of the present invention;

fig. 4 is a front view of the lever supporting device of the present invention.

In the figure: 1 publicity board body, 2 publicity board supporting legs, 3 wheel bases, 4 universal wheels, 5 chucking shells, 6 standing grooves, 7 chucking balls, 8 springs, 9 activity grooves, 10 connecting rods, 11 support levers, 12 draw-in grooves, 13 fixture blocks, 14 connecting axles.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a new technical solution: a movable environment-friendly publicity board comprises a publicity board body 1, publicity board supporting legs 2 are fixedly connected at the lower end of the publicity board body 1, wheel bases 3 are fixedly connected at the lower surface of the publicity board supporting legs 2, the number of the wheel bases 3 is two, the two wheel bases 3 are respectively and fixedly connected with the left side and the right side of the lower surface of the publicity board supporting legs 2, semicircular grooves are formed in the front side and the rear side of each wheel base 3, universal wheels 4 are arranged on the lower surfaces of the wheel bases 3, clamping devices are arranged at the lower ends of the universal wheels 4 and comprise clamping shells 5, the clamping shells 5 are movably sleeved at the lower ends of the universal wheels 4, the heights of the clamping shells 5 are smaller than the heights of the universal wheels 4 and the heights of the wheel bases 3, the clamping shells 5 are fixedly connected on the ground, the number of the placing grooves 6 is three, the three placing grooves 6 are respectively and sequentially arranged in the interior of the clamping shell 5, the front wall of the interior of the front side placing groove 6 is fixedly connected with a spring 8, the rear side of the spring 8 is fixedly connected with a clamping ball 7, the diameter of the clamping ball 7 is the same as that of a semicircular groove arranged on the front side and the rear side of the wheel base 3, the rear end of the clamping ball 7 penetrates through an opening arranged on the rear wall of the front side placing groove 6 and is positioned in the middle placing groove 6, the inner structure of the rear side placing groove 6 is the same as that of the front side placing groove 6 and is connected in a mirror image mode, a placing opening is arranged on the upper surface of the middle placing groove 6, when the universal wheel 4 runs to the placing opening on the upper end of the middle placing groove 6, the universal wheel 4 translates downwards, when the two clamping balls 7 receive extrusion force, the spring 8 on the other end contracts, so that the two clamping balls 7 contract into the, the universal wheel 4 loses the blockage and continues descending, when the universal wheel 4 translates to the bottom surface inside the middle placing groove 6, because the diameters of the clamping round balls 7 are the same as the diameters of the semicircular grooves formed in the front side and the rear side of the wheel base 3, when the two clamping round balls 7 are just parallel to the semicircular grooves formed in the front side and the rear side of the wheel base 3, the spring 8 loses the extrusion force and starts to release the thrust force, so that the two clamping round balls 7 carry out relative motion, the clamping round balls 7 can be just clamped in the semicircular grooves on the wheel base 3, so that the universal wheel 4 can be fixed through the clamping round balls 7 to avoid the disorder movement, the front side of the publicity board supporting leg 2 is provided with a lever supporting device, the lever supporting device comprises two movable grooves 9, the number of the movable grooves 9 is two, the two movable grooves 9 are respectively formed in the left end and the right end of the front side surface of, the lower end of the inner part of the movable groove 9 is fixedly connected with a connecting shaft 14, the connecting shaft 14 is movably sleeved with a connecting rod 10, the left side and the right side of the connecting rod 10 are respectively and rotatably connected with a supporting lever 11, the other end of the supporting lever 11 can rotate on the connecting rod 10, the length of the supporting lever 11 is equal to the height of the movable groove 9 arranged on the publicity board supporting leg 2, the left side and the right side of the upper end of the connecting rod 10 are respectively provided with a clamping groove 12, the clamping groove 12 is in a semicircular groove shape, the left side and the right side of the upper end of the inner wall of the movable groove 9 are provided with channels, the inner parts of the channels are also and fixedly connected with springs 8, one ends of the springs 8 positioned in the movable groove 9 are respectively and fixedly connected with clamping blocks 13, the clamping blocks 13 are in a spherical shape and have the, thereby the spring 8 at the other end of the clamping block 13 is contracted, so that the two clamping blocks 13 can move oppositely and contract into the channel of the movable groove 9, so that the clamping block 13 is not clamped with the clamping groove 12, because the connecting rod 10 is movably sleeved on the connecting shaft 14, a worker can rotate the other end of the connecting rod 10, when the connecting rod 10 rotates to be horizontal, the worker pulls the supporting lever 11, because one end of the supporting lever 11 is rotatably connected with the connecting rod 10, the other end of the supporting lever 11 can rotate to be contacted with the ground, the length of the supporting lever 11 is equal to the height of the movable groove 9 arranged on the publicity board supporting leg 2, so that the connecting rod 10 is supported, the worker only needs to press the other end of the connecting rod 10, and the universal wheel 4 on the publicity board supporting leg 2 can be separated from the clamping device through the connecting rod 10 by the lever law of Archimedes, so that the billboard can be moved again.

The working principle is as follows: when the movable environment-friendly publicity board is used, the loosening of the wheels of the publicity board is effectively avoided by arranging the clamping device, when the universal wheel 4 is driven to the placing opening at the upper end of the middle placing groove 6, the universal wheel 4 translates downwards, when the two clamping balls 7 receive the extrusion force, the spring 8 at the other end contracts, so that the two clamping balls 7 contract into the placing groove 6, the universal wheel 4 loses the barrier and continues descending, when the universal wheel 4 translates to the bottom surface in the middle placing groove 6, because the diameter of the clamping balls 7 is the same as that of the semicircular grooves formed at the front side and the rear side of the wheel base 3, when the two clamping balls 7 are just parallel to the semicircular grooves formed at the front side and the rear side of the wheel base 3, the spring 8 loses the extrusion force and starts to release the thrust force, so that the two clamping balls 7 move relatively, so that the clamping balls 7 can be just clamped in the semicircular grooves formed on the wheel base 3, therefore, the universal wheel 4 can be fixed through the clamping ball 7, the disorder movement of the universal wheel is avoided, and the harm to nearby personnel caused by the disorder movement of the environment-friendly publicity board is effectively avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mobilizable environmental protection publicity board, includes publicity board body (1), the lower extreme fixedly connected with publicity board supporting leg (2) of publicity board body (1), its characterized in that: the lower fixed surface of publicity board supporting leg (2) is connected with wheel base (3), wheel base (3) lower surface is provided with universal wheel (4), universal wheel (4) lower extreme is provided with the chucking device, the front side of publicity board supporting leg (2) is provided with lever support device.

2. The portable environmental promotion panel of claim 1, wherein: semicircular grooves are formed in the front side surface and the rear side surface of the wheel base (3).

3. The portable environmental promotion panel of claim 1, wherein: the clamping device comprises a clamping shell (5), wherein the clamping shell (5) is movably sleeved at the lower end of the universal wheel, three placing grooves (6) are respectively formed in the clamping shell (5), the front side is fixedly connected with springs (8) at the upper ends of the inner walls of the placing grooves (6), and the other ends of the springs (8) are fixedly connected with clamping round balls (7).

4. A portable environmental promotion panel according to claim 3, wherein: chucking shell (5) fixed connection is subaerial, the inside cavity of chucking shell (5), the diameter of chucking ball (7) is the same with the diameter of the semicircular groove that both sides were seted up around wheel base (3), the rear end of chucking ball (7) runs through out the opening of seting up on front side standing groove (6) and is located middle standing groove (6), the rear side standing groove (6) inner structure is the same with the inner structure of front side standing groove (6) and become the mirror image mode and connect, the centre standing groove (6) upper surface has been seted up and has been placed the mouth.

5. The portable environmental promotion panel of claim 1, wherein: the lever strutting arrangement is including activity groove (9), both ends about the surface of the front side of publicity board supporting leg (2) are seted up respectively in activity groove (9), the inside lower extreme fixedly connected with connecting axle (14) of activity groove (9), connecting rod (10) have been cup jointed in the activity on connecting axle (14), the left and right sides of connecting rod (10) rotates respectively and is connected with support lever (11), draw-in groove (12) have been seted up respectively to the upper end left and right sides of connecting rod (10), same fixedly connected with spring (8) on activity groove (9) inner wall, spring (8) other end fixedly connected with fixture block (13).

6. The portable environmental promotion panel of claim 5, wherein: the length of support lever (11) equals that activity groove (9) set up the height in publicity board supporting leg (2), the shape of draw-in groove (12) is semicircular groove, the shape of fixture block (13) is the spheroid and the diameter is the same with the diameter of draw-in groove (12), connecting rod (10) carry out the joint through draw-in groove (12) and fixture block (13).