CN111329229A

CN111329229A - Electric lifting table capable of realizing function of returning back when meeting resistance

Info

Publication number: CN111329229A
Application number: CN202010195841.8A
Authority: CN
Inventors: 项乐宏; 李方圆; 胡俊浩
Original assignee: Loctek Ergonomic Technology Co Ltd
Current assignee: Loctek Ergonomic Technology Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-06-26

Abstract

The invention discloses an electric lifting table for realizing a to-be-stopped backspacing function, which comprises at least one group of safety gratings, wherein each group of safety gratings comprises two to-be-stopped backspacing components, two mounting plates are respectively arranged at two sides below a table plate body and are respectively positioned at the outer sides of lifting upright columns, and a transmitting end component and a receiving end component of each safety grating are respectively arranged on two opposite surfaces of the two mounting plates; the two fixing plates are respectively sleeved on the lifting stand columns on two sides below the table plate body, the transmitting end assembly and the receiving end assembly of the safety grating are respectively installed on two opposite surfaces of the two fixing plates, and the two fixing plates are respectively detachably connected with the two mounting plates. This realization will meet and hinder the electric lift table that moves back the function and make and will meet and hinder the subassembly that moves back and can effectively avoid sheltering from of lift stand, and should meet and hinder subassembly simple to operate, simple, can realize quick installation to can practice thrift the packing cost.

Description

Electric lifting table capable of realizing function of returning back when meeting resistance

Technical Field

The invention relates to the technical field of electric lifting tables, in particular to an electric lifting table capable of realizing a function of returning back when meeting a resistance.

Background

The lifting table is also called a learning table or a lifting office table, and can meet the healthy office requirements of people with different heights for realizing standing and sitting alternative office by utilizing the lifting characteristic; at present, more and more office workers select a lifting work table to work; the lift table of prior art generally includes electric lift table and manual lift table, and electric lift table adopts motor drive's mode to accomplish the lift adjustment of table, and its structure generally includes two bases, two lift stands, table frame and driving motor. This electric lift table is when the lift action of reality, if table or table frame meet the barrier when, probably destroys barrier or table self structure, if the collision or extrude the human body, probably causes bodily injury, consequently this electric lift table security is relatively poor.

At present, there is also an electric lifting table with a function of retracting when encountering a barrier in the market in the prior art, wherein a component for retracting when encountering a barrier is installed at the bottom of two ends of a table plate or a table plate frame, the component for retracting when encountering a barrier is composed of a safety grating capable of detecting the barrier, the safety grating comprises a transmitting end component and a receiving end component, the transmitting end component is generally provided with a plurality of transmitters, the receiving end component is also correspondingly provided with a plurality of receivers corresponding to the transmitters, optical signals sent by the transmitters can be received by the receivers corresponding to the transmitters, when the barrier exists, a part of light sent by the transmitters is blocked by the barrier, the corresponding receivers cannot receive the part of light sent by the transmitters, so that the barrier in a certain area can be detected, and at the moment, a controller controls a driving motor to stop driving two lifting columns to lift or retract, to avoid the table colliding with obstacles. However, the structure of the electric lifting table with the function of returning when encountering a resistance in the prior art generally comprises two support plates which are respectively vertically arranged at the bottoms of the two ends of the table plate, and a transmitting end component and a receiving end component of the safety grating are respectively arranged on the opposite surfaces of the two support plates, so that a detection blind area is avoided due to the shielding of the two lifting upright columns, connecting plates are respectively arranged on the opposite surfaces of the two lifting upright columns, and the transmitting end component and the receiving end component of the safety grating are respectively arranged on the opposite surfaces of the two connecting plates; the two ends of each connecting plate are fixed with the supporting plates close to the connecting plates through fixing plates, so that the connecting plates, the fixing plates and the supporting plates are integrated; therefore, the electric lifting table with the function of returning back when encountering a resistance in the prior art is integrated with a component which returns back when encountering a resistance, can avoid the shielding of two lifting columns, but has a complex connecting structure, needs a plurality of screws for fixed installation, is extremely inconvenient to install and disassemble, cannot realize the quick installation of the component which returns back when encountering a resistance, and occupies more packaging space when leaving factory for packaging the component which returns back when encountering a resistance.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides an electric lifting table which can ensure that a component returning after meeting a resistance can effectively avoid the shielding of a lifting upright post, is convenient and simple to install, can realize quick installation and can save the packaging cost and realize the function of returning after meeting a resistance.

The technical scheme of the invention is to provide an electric lifting table with the following structure for realizing the function of returning when meeting a resistance: it comprises

The table board comprises a table board body, a lifting upright post, a controller and a driving motor for driving the lifting upright post to lift;

the safety grating comprises two components to be subjected to blockage backing, the two components to be subjected to blockage backing are respectively arranged into a transmitting end component and a receiving end component, the transmitting end component is used for emitting a light beam signal, and the receiving end component is used for receiving the light beam signal emitted by the transmitting end component; the two assemblies to be subjected to back-off comprise

The two mounting plates are respectively arranged on two sides below the table plate body and are respectively positioned on the outer sides of the lifting upright columns, and a transmitting end assembly and a receiving end assembly of the safety grating are respectively arranged on two opposite surfaces of the two mounting plates;

the two fixing plates are respectively sleeved on the lifting stand columns on two sides below the table plate body, the transmitting end assembly and the receiving end assembly of the safety grating are respectively installed on two opposite surfaces of the two fixing plates, and the two fixing plates are respectively detachably connected with the two installation plates on the outer sides of the lifting stand columns.

Preferably, two jacks are arranged on the inner side wall of each mounting plate, and the two jacks are respectively positioned on two sides of the lifting upright; each fixing plate is provided with two plugs which are matched and spliced with the jacks, and the two plugs on the fixing plate are spliced in the two jacks on the mounting plate and used for electrically connecting the safety grating on the mounting plate with the safety grating on the fixing plate.

Preferably, the mounting plate is connected with two first connecting pieces, outer side walls of two plugs of the fixing plate are respectively connected with a second connecting piece, and when the two plugs of the fixing plate are plugged in the two sockets of the mounting plate, the two first connecting pieces are attached to the two second connecting pieces and are respectively connected through fasteners.

Preferably, the fixing plate comprises a U-shaped part, and a transmitting end component or a receiving end component of the safety grating is mounted on the inner side wall of the U-shaped part; the both ends of U-shaped portion are connected a connecting portion that the level outwards set up respectively, are equipped with the space that supplies the lift stand to pass between two connecting portions, and the free end of two connecting portions is connected with the plug of fixed plate.

Preferably, two safety gratings are connected in each mounting plate and are electrically connected with two sockets of the mounting plate respectively, a gap is formed between the two safety gratings and is horizontally opposite to the lifting upright column, and when two plugs on the fixing plate are plugged in the two sockets of the mounting plate, the safety gratings in the fixing plate are electrically connected with the two safety gratings in the mounting plate.

Preferably, the lifting device further comprises a beam assembly, the top of the lifting upright is connected with the beam assembly, and the two mounting plates are arranged at two ends of the beam assembly and are respectively connected with two ends of the beam assembly; the mounting plate is provided with a plurality of connecting holes connected with the table body.

After adopting the structure, compared with the prior art, the electric lifting table for realizing the function of returning back when meeting a resistance has the following advantages:

1. the two components to be subjected to resistance backing of the electric lifting table for realizing the function of being subjected to resistance backing comprise two mounting plates and two fixing plates, and a transmitting end component and a receiving end component of a safety grating are respectively arranged on two opposite surfaces of the two mounting plates and the two fixing plates, namely each component to be subjected to resistance backing comprises one mounting plate and one fixing plate, and the transmitting end component or the receiving end component of the safety grating is arranged on the inner side walls of the mounting plate and the fixing plates; because the mounting plate and the fixing plate are detachably connected, each mounting plate and each fixing plate of the retraction assembly to be met can be detached, and the packaging cost is saved; and the setting of fixed plate to and set up the transmitting terminal subassembly or the receiving terminal subassembly of safety grating on the inside wall of fixed plate, overcome like this that the lift stand sheltered from the defect of safety grating on the mounting panel, thereby increased safety grating's detection area. Therefore, the electric lifting table with the function of returning after meeting the resistance can effectively avoid the shielding of the lifting upright post after meeting the resistance returning component, can be packaged detachably, and saves the packaging cost.

2. Every will meet the fixed plate that hinders backspacing component and peg graft in the socket on the mounting panel through the plug, realize the electric connection of the safety grating on the fixed plate and the safety grating on the mounting panel, avoided the trouble that adopts the pencil to connect like this. And the connection between the safety grating on the fixed plate and the safety grating on the mounting plate is quicker and simpler, and the connection can be completed only by inserting the plug of the fixed plate into the socket on the mounting plate.

3. The fixing plate is shaped, so that the transmitting end assembly or the receiving end assembly on the fixing plate is distributed along the inner side wall of the U-shaped part, and the detection area of the safety grating is further increased.

Drawings

Fig. 1 is a schematic structural diagram of an electric lifting table for realizing a function of returning when meeting a resistance according to the present invention.

Fig. 2 is a structural diagram of a to-be-blocked retraction assembly of an electric lifting table for implementing the to-be-blocked retraction function according to the present invention.

As shown in the figure:

1. the table board comprises a table board body, 2, a lifting upright post, 3, a controller, 4, a safety grating, 5, a mounting plate, 500, a connecting hole, 501, a socket, 502, a first connecting sheet, 6, a fixing plate, 600, a U-shaped part, 601, a connecting part, 602, a plug, 603, a gap, 604, a second connecting sheet, 7, a driving motor, 8, a base, 9 and a beam assembly.

Detailed Description

The electric lifting table in the prior art structurally comprises a table plate, a base, a lifting upright post, a driving motor and a controller; the lower end of the lifting upright post is connected with the base, the upper end of the lifting upright post is connected with the table plate, or the upper end of the lifting upright post is connected with a beam assembly, the table plate is arranged at the top of the beam assembly, and the driving motor is arranged on the beam assembly and is in transmission connection with a linear driving mechanism in the lifting upright post; the controller is used for controlling the action of the driving motor; the lifting upright post 2 is also called as a lifting table leg and structurally comprises an outer tube and an inner tube which is in sliding fit with the inner hole of the outer tube, and a linear lifting mechanism or a linear push rod mechanism is arranged in the inner hole of the inner tube; the linear lifting mechanism comprises a lead screw which is rotatably connected to the upper end of the inner tube through a bearing; the outer side wall of the base is connected with a supporting pipe, and the lower end of the supporting pipe is connected with the lower end of the outer pipe; the lead screw rotates to enable the base and the supporting pipe to move along the length direction of the lead screw, so that the outer pipe slides relative to the inner pipe, and the lifting upright post is lifted. The lifting upright post is a product which is a mature technology in the prior art, and can be referred to as the lifting upright post disclosed by the publication number CN207659000U, or the lifting table leg disclosed by the publication number CN 207626789U; therefore, the structure of the lifting upright post is not described in detail in the invention. The electric lifting table of the invention is an improvement on the electric lifting table of the prior art.

In addition, the safety grating is a commercially available product, which is also common in the prior art, but most of the safety gratings in the prior art are used for preventing the body of a user from entering a dangerous area to achieve a safety protection function, and are also used for detecting the size and the position of a product to achieve an error correction function, but the application mainly achieves a function of detecting obstacles by being installed on an electric lifting table, and a set of safety gratings generally comprises a transmitting end component and a receiving end component, wherein the transmitting end component is generally provided with a plurality of transmitters, the receiving end component is also correspondingly provided with a plurality of receivers, and the safety gratings generally need to be in signal connection with a controller.

The invention is described in further detail below with reference to the figures and specific examples.

Referring to fig. 1 to 2, the electric lifting table for realizing the function of returning when encountering a resistance comprises a table board body 1, a lifting upright post 2, a controller 3 and a driving motor 7 for driving the lifting upright post 2 to lift; the lift stand 2 be two, and connect respectively in the bottom both sides of table body 1, base 8 is installed to the lower extreme of every lift stand 2, the upper end of every lift stand 2 is connected with driving motor 7, driving motor 7 be connected with the linear actuating mechanism transmission in the lift stand 2 for drive lift stand 2 goes up and down, realize the lift operation of table body 1. The control circuit of the driving motor 7 is respectively connected with the controller 3, and the controller 3 is used for controlling the on-off and positive and negative rotation of the circuit of the driving motor 7. The lifting column is characterized by further comprising a beam assembly 9, the top of the lifting column 2 is connected with the beam assembly 9, and the two mounting plates 5 are arranged at two ends of the beam assembly 9 and are respectively connected with two ends of the beam assembly 9; the mounting plate 5 is provided with a plurality of connecting holes 500 connected with the table plate body; the table body 1 is connected to the top of the beam assembly 9 and is connected to the mounting plate 5 through a connecting hole 500.

At least one set of setting is in table body 1 below and is used for surveying the safe grating 4 of barrier, safe grating 4 and controller signal connection for the controller of control safe grating can be integrated on driving motor's controller, also can set up independently, sets for according to user's demand. Each group of safety gratings 4 comprises two components to be returned after being blocked, the two components to be returned after being blocked are respectively arranged as a transmitting end component and a receiving end component, the transmitting end component is used for emitting a light beam signal, and the receiving end component is used for receiving the light beam signal emitted by the transmitting end component; if a part of light beam signals emitted by the emission end component of the safety grating 4 are blocked by the barrier and the receiving end component corresponding to the part of light beams cannot receive light beam information, the controller controls the driving motor to stop driving the lifting upright post to lift or controls the driving motor to drive the lifting upright post to retreat in the opposite direction for certain displacement so as to prevent the electric lifting table from touching the barrier in the descending process.

The two assemblies to be subjected to resistance backing comprise two mounting plates 5 which are respectively arranged at two sides below the table plate body 1 and are respectively positioned at the outer sides of the lifting upright posts 2, and a transmitting end assembly and a receiving end assembly of the safety grating are respectively arranged on two opposite surfaces of the two mounting plates 5; two fixed plates 6, establish respectively on the lift stand 2 of 1 below both sides of table body, and install the transmitting terminal subassembly and the receiving terminal subassembly of safe grating on two opposite faces of two fixed plates 6 respectively, two fixed plates 6 respectively with two mounting panel 5 detachable connections in the lift stand 2 outsides, also every mounting panel 5 corresponds a fixed plate 6, this fixed plate 6 and mounting panel 5 detachable connections. The detachable connection comprises screw connection, clamping connection or insertion connection and the like, and the purpose of the detachable connection is to realize the detachment of the backing component when meeting the resistance, so that the volume can be reduced and the packaging space can be saved when the packaging is carried out.

Referring to fig. 2, in another embodiment of the present invention, two insertion holes 501 are provided on the inner sidewall of each mounting plate 5, and the two insertion holes 501 are respectively located at two sides of the lifting column 2; each fixing plate 6 is provided with two plugs 602 which are matched with the sockets 501, and the two plugs 602 on the fixing plate 6 are plugged into the two sockets 501 on the mounting plate 5, so that the safety light grating on the mounting plate 5 is electrically connected with the safety light grating on the fixing plate 6. Two safety gratings 4 are connected in each mounting plate 5, two safety gratings 4 are respectively electrically connected with two sockets 501 of the mounting plate 5, two safety gratings 4 are provided with a gap therebetween, the gap is horizontally opposite to the lifting upright post 2, when two plugs 602 on the fixing plate 6 are inserted into the two sockets 501 on the mounting plate 5, the safety gratings 4 in the fixing plate 6 are electrically connected with the two safety gratings 4 in the mounting plate 5. Mounting panel and fixed plate be the cavity spare, and the inside wall opens the setting respectively, all is equipped with the PCB board in mounting panel and fixed plate, the transmission side subassembly or the receiving terminal subassembly of safety grating are connected on the PCB board, when the plug of fixed plate is pegged graft in the socket of mounting panel, PCB board in the fixed plate and PCB board electric connection in the mounting panel, plug and socket for realizing PCB board in the fixed plate and PCB board electric connection's in the mounting panel plug connector, when the installation fixed plate, establish the fixed plate cover on the lift stand, then make the plug of fixed plate peg graft with the socket of mounting panel can. Make like this and to meet and hinder the subassembly installation of rolling back fast, convenient and simple, avoid adopting the trouble that the pencil is connected, set up like this moreover, can effectively avoid the safe grating on the installation panel that shelters from of lift stand, make the detection area increase of safe grating.

The mounting plate 5 is connected with two first connecting pieces 502, the outer side walls of two plugs 602 of the fixing plate 6 are respectively connected with a second connecting piece 604, when the two plugs 602 of the fixing plate 6 are inserted into two sockets 501 on the mounting plate 5, the two first connecting pieces 502 are attached to the two second connecting pieces 604 and are respectively connected through fasteners, fastening screws sequentially penetrate through the second connecting pieces 604 and the first connecting pieces 502, and the fixing plate is connected onto the mounting plate.

The fixing plate 6 comprises a U-shaped part 600, and a transmitting end component or a receiving end component of the safety grating is arranged on the inner side wall of the U-shaped part 600; the two ends of the U-shaped portion 600 are respectively connected with a connecting portion 601 horizontally arranged outwards, a gap 603 for the lifting column to pass through is arranged between the two connecting portions 601, and the free ends of the two connecting portions 601 are connected with a plug 602 of the fixing plate 6. The fixing plate 6 may also be U-shaped, and the free ends of the U-shape are provided with plugs 602. The fixing plate 6 is hollow, the inner side wall of the U-shaped portion is open, and the safety grating mounted on the inner side wall of the U-shaped portion 600 is also U-shaped.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An electric lifting table for realizing the function of returning back when meeting a resistance comprises

the safety grating comprises two components to be subjected to blockage backing, the two components to be subjected to blockage backing are respectively arranged into a transmitting end component and a receiving end component, the transmitting end component is used for emitting a light beam signal, and the receiving end component is used for receiving the light beam signal emitted by the transmitting end component; the method is characterized in that: the two assemblies to be subjected to back-off comprise

2. An electric lifting table for realizing a function of retracting when encountering a resistance according to claim 1, wherein: two jacks are arranged on the inner side wall of each mounting plate, and the two jacks are respectively positioned at two sides of the lifting upright post; each fixing plate is provided with two plugs which are matched and spliced with the jacks, and the two plugs on the fixing plate are spliced in the two jacks on the mounting plate and used for electrically connecting the safety grating on the mounting plate with the safety grating on the fixing plate.

3. An electric lifting table for realizing a function of retracting when encountering a resistance according to claim 2, wherein: the mounting plate is connected with two first connecting pieces, the outer side walls of the two plugs of the fixing plate are respectively connected with a second connecting piece, and when the two plugs on the fixing plate are inserted into the two sockets on the mounting plate, the two first connecting pieces are attached to the two second connecting pieces and are respectively connected through fasteners.

4. An electric lifting table for realizing a function of retracting when encountering a resistance according to claim 2, wherein: the fixing plate comprises a U-shaped part, and a transmitting end component or a receiving end component of the safety grating is arranged on the inner side wall of the U-shaped part; the both ends of U-shaped portion are connected a connecting portion that the level outwards set up respectively, are equipped with the space that supplies the lift stand to pass between two connecting portions, and the free end of two connecting portions is connected with the plug of fixed plate.

5. An electric lifting table for realizing a function of retracting when encountering a resistance according to claim 2, wherein: two safety gratings are connected in each mounting plate, the two safety gratings are respectively electrically connected with two sockets of the mounting plate, a gap is arranged between the two safety gratings, the gap is horizontally opposite to the lifting upright column, and when two plugs on the fixing plate are inserted into the two sockets on the mounting plate, the safety gratings in the fixing plate are electrically connected with the two safety gratings in the mounting plate.

6. An electric lifting table for realizing a function of retracting when encountering a resistance according to claim 1, wherein: the top of the lifting upright post is connected with the beam assembly, and the two mounting plates are arranged at two ends of the beam assembly and are respectively connected with two ends of the beam assembly; the mounting plate is provided with a plurality of connecting holes connected with the table body.