CN211145976U

CN211145976U - Electric lifting platform of projector

Info

Publication number: CN211145976U
Application number: CN201922266766.5U
Authority: CN
Inventors: 王光碧
Original assignee: Shanghai Yao Kang Intelligent Technology Co ltd
Current assignee: Shanghai Yao Kang Intelligent Technology Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-07-31
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a projector electric lifting platform, including base, vertical frame and backup pad, vertical frame fixes in the base side and sets up perpendicularly mutually with the base, and the backup pad is located the base top and is parallel to each other with the base, and backup pad and vertical frame sliding connection are equipped with electric hydraulic cylinder at the base top, and electric hydraulic cylinder's output is equipped with the telescopic link, and the telescopic link upper end is fixed in the backup pad bottom surface, be equipped with balanced structure on the base, balanced structure has two sets of and symmetry setting in electric hydraulic cylinder both sides, balanced structure includes fixed folding rod and removal folding rod, and fixed folding rod and removal folding rod are constituteed by two metal poles that rotate the connection through the articulated shaft, and fixed folding rod upper and lower both ends all are equipped with fixed rotating shaft; this device supports the backup pad through two sets of balanced structure when carrying out the lift of backup pad, avoids the backup pad to take place the angle slope, guarantees to form images steadily, conveniently adjusts work to the safety of equipment has been ensured.

Description

Electric lifting platform of projector

Technical Field

The utility model relates to a projector bearing structure specifically is a projector electric lift platform.

Background

Projectors, also called projectors, are devices that can project images or videos onto a screen, and are widely used in homes, offices, schools, and entertainment places, and there are different types of CRT, &lttt translation = L "&l ttt/t &gtt CD, D L P, and the like, depending on the working mode.

In the process of using the projector, the projector is often required to be moved to perform projection playing at different positions, and the height of the projector is often required to be adjusted due to factors such as distance; at present, no special equipment is used for carrying out lifting adjustment and supporting of the projector.

Chinese patent publication No. CN209536874U provides an anti-sway hydraulic elevating platform, installs four flexible bamboo joint poles through four angles at the elevating platform, makes it all can keep the elevating platform firm when rising to the maximum height, reduces to sway, avoids taking place the incident, nevertheless because four flexible bamboo joint poles stretch out and draw back separately, the phenomenon that can not synchronous operation can appear in the inevitable, leads to probably taking place the skew at the lift in-process, influences equipment safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projector electric lift platform to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a projector electric lifting platform comprises a base, a vertical frame and a supporting plate, wherein the vertical frame is fixed on the side face of the base and is perpendicular to the base, the supporting plate is positioned above the base and is parallel to the base, the supporting plate is connected with the vertical frame in a sliding mode, an electric hydraulic cylinder is arranged at the top of the base, an output end of the electric hydraulic cylinder is provided with a telescopic rod, the upper end of the telescopic rod is fixed on the bottom face of the supporting plate, the base is provided with a balance structure, the balance structure comprises two groups of fixed folding rods and two movable folding rods, the two groups of fixed folding rods and the two groups of movable folding rods are symmetrically arranged on two sides of the electric hydraulic cylinder, each of the fixed folding rods and the two movable folding rods consists of two metal rods which are rotatably connected through a hinge shaft, the upper ends and the; the movable folding rod is characterized in that movable rotating shafts are arranged at two ends of the movable folding rod, a guide groove is formed in the base on a movable rotating shaft fixing sliding block at the lower end of the movable folding rod, the sliding block is located in the guide groove and is in sliding connection with the guide groove, and grooves which are symmetrical and identical to the guide groove are formed in the bottom surface of the base.

A guide rod in the horizontal direction is arranged in the guide groove, and the guide rod is inserted in the sliding block and is in sliding connection with the sliding block; two anti-deviation rods which are parallel to each other are arranged in the vertical frame, the front end of the supporting plate is positioned in the vertical frame and sleeved on the anti-deviation rods, and the supporting plate is connected with the anti-deviation rods in a sliding mode.

As the preferred scheme of the utility model: and the moving rotating shafts at the bottoms of the moving folding rods in the two groups of balance structures are connected through connecting rods.

Compared with the prior art, the beneficial effects of the utility model are that: this device supports the backup pad through two sets of balanced structure when carrying out the lift of backup pad, avoids the backup pad to take place the angle slope, guarantees to form images steadily, conveniently adjusts work to the safety of equipment has been ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a perspective view of the base of the present invention.

In the figure, 1-base, 2-vertical frame, 3-support plate, 4-electric hydraulic cylinder, 5-telescopic rod, 6-fixed folding rod, 7-movable folding rod, 8-articulated shaft, 9-fixed rotating shaft, 10-sliding block, 11-movable rotating shaft, 12-guide groove, 13-guide rod and 14-anti-deflection rod.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, an electric elevating platform of a projector comprises a base 1, a vertical frame 2 and a supporting plate 3, wherein the vertical frame 2 is fixed on the side of the base 1 and is perpendicular to the base 1, the supporting plate 3 is located above the base 1 and is parallel to the base 1, the supporting plate 3 is slidably connected with the vertical frame 2, an electric hydraulic cylinder 4 is arranged on the top of the base 1, an output end of the electric hydraulic cylinder 4 is provided with a telescopic rod 5, the upper end of the telescopic rod 5 is fixed on the bottom surface of the supporting plate 3, when the projector is adjusted by lifting, the electric hydraulic cylinder 4 works to drive the telescopic rod 5 to change the length, so as to adjust the height of the projector, a balance structure is arranged on the base 1, the balance structure comprises two groups and is symmetrically arranged on two sides of the electric hydraulic cylinder 4, the balance structure comprises a fixed folding rod 6 and a movable folding rod 7, the fixed folding rod 6 and the movable folding, the upper end and the lower end of the fixed folding rod 6 are both provided with a fixed rotating shaft 9, the fixed rotating shaft 9 at the upper end of the fixed folding rod 6 is positioned at the bottom surface of the supporting plate 3, and the fixed shaft at the lower end of the fixed folding rod 6 is positioned at the top surface of the base 1; remove 7 both ends of folding rod and be equipped with removal pivot 11, remove on the fixed sliding block 10 of removal pivot 11 of 7 lower extremes of folding rod, seted up guide way 12 on base 1, sliding block 10 be located guide way 12 and with guide way 12 sliding connection, set up in base 1 bottom surface with 12 symmetries of guide way and the same recess, when carrying out the lift of backup pad 3, support backup pad 3 through two sets of balanced structure, avoid backup pad 3 to take place the angle slope, guarantee that the formation of image is steady, conveniently adjust the work to the safety of equipment has been ensured.

Specifically, be equipped with the guide bar 13 of horizontal direction in the guide way 12, guide bar 13 cartridge is in sliding block 10 and with sliding block 10 sliding connection, carries out multiple restriction to the slip orbit of sliding block 10 through guide bar 13 and guide way 12 inner wall to avoid sliding block 10 to take place the skew, and avoid sliding block 10 to deviate from in following guide way 12, further guaranteed the stability of lift in-process backup pad 3.

Simultaneously, be equipped with two anti-yaw rod 14 that are parallel to each other in the

vertical frame

2, 3 front ends of backup pad are located vertical frame 2 and the suit is on anti-yaw rod 14, backup pad 3 and anti-yaw rod 14 sliding connection, through anti-yaw rod 14's setting, form three point support to backup pad 3 together with telescopic link 5, further guarantee backup pad 3 at the stability of lift in-process.

Example 2:

on the basis of embodiment 1, in order to avoid two sets of balanced structure frequency of buckling unanimity among the lift process, two sets of remove the removal pivot 11 of folding rod 7 bottom in the balanced structure and be connected through the connecting rod, when one of them sliding block 10 drove and remove pivot 11 and slide, can guarantee two sliding block 10 synchronous motion through the connecting rod like this to guarantee stability.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An electric lifting platform of a projector comprises a base (1), a vertical frame (2) and a supporting plate (3), wherein the vertical frame (2) is fixed on the side surface of the base (1) and is mutually perpendicular to the base (1), the supporting plate (3) is positioned above the base (1) and is mutually parallel to the base (1), the supporting plate (3) is in sliding connection with the vertical frame (2), an electric hydraulic cylinder (4) is arranged at the top of the base (1), an expansion rod (5) is arranged at the output end of the electric hydraulic cylinder (4), the upper end of the expansion rod (5) is fixed on the bottom surface of the supporting plate (3), the electric lifting platform is characterized in that a balance structure is arranged on the base (1), the balance structure comprises two groups which are symmetrically arranged on two sides of the electric hydraulic cylinder (4), the balance structure comprises a fixed folding rod (6) and a movable folding rod (7), and fixed rotating shafts (9) are, a fixed rotating shaft (9) at the upper end of the fixed folding rod (6) is positioned at the bottom surface of the supporting plate (3), and a fixed shaft at the lower end of the fixed folding rod (6) is positioned at the top surface of the base (1); remove folding rod (7) both ends and be equipped with removal pivot (11), remove on the fixed sliding block (10) of removal pivot (11) of folding rod (7) lower extreme, seted up guide way (12) on base (1), sliding block (10) are located guide way (12) and with guide way (12) sliding connection, seted up in base (1) bottom surface with guide way (12) symmetry and the same recess.

2. A projector electric lifting platform according to claim 1, characterized in that the fixed folding bar (6) and the movable folding bar (7) are each composed of two metal bars rotatably connected by means of a hinge axis (8).

3. A projector electric lifting platform as claimed in claim 1, characterized in that a horizontal guide bar (13) is arranged in the guide groove (12), and the guide bar (13) is inserted into the sliding block (10) and is connected with the sliding block (10) in a sliding manner.

4. A projector electric lifting platform according to claim 1, 2 or 3, characterized in that two anti-deviation rods (14) parallel to each other are arranged in the vertical frame (2), the front end of the support plate (3) is positioned in the vertical frame (2) and sleeved on the anti-deviation rods (14), and the support plate (3) is connected with the anti-deviation rods (14) in a sliding manner.

5. A projector electric lifting platform according to claim 1, 2 or 3, characterized in that the moving rotating shafts (11) at the bottom of the moving folding rods (7) in the two groups of balancing structures are connected through connecting rods.