CN115324455A

CN115324455A - Linkage type protection device

Info

Publication number: CN115324455A
Application number: CN202210908674.6A
Authority: CN
Inventors: 左艳芳; 王志飞; 魏耀南; 杜呈欣; 李樊; 阚庭明; 李帅; 郭浩波; 孙安生; 马腾飞; 李宝; 韩鹏非; 刘磊; 郭顺利; 杨楠; 李勇; 王振欣; 王俐文; 刘惠涛; 曹青元
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Institute of Computing Technologies of CARS; Beijing Jingwei Information Technology Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Institute of Computing Technologies of CARS; Beijing Jingwei Information Technology Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-11

Abstract

The invention provides a linkage type protection device, wherein a pair of support columns is arranged, a first protection body and a second protection body which can be lifted are arranged between the two support columns, the first protection body is driven by a driving mechanism to reach different opening degrees, and the first protection body and the second protection body are overlapped, and simultaneously the first protection body pushes the second protection body to move through a supporting piece, so that the opening degree of the protection device is further expanded, and different opening degrees of the height position of a platform door are realized; meanwhile, the distance between the support columns is the horizontal opening degree of the platform door, and the platform door opening degree can be set at will by setting the distance between the support columns, so that the defects that the opening degree of a flat-open platform is limited and occupies the space of the platform are overcome, the platform door opening degree is freely set on the basis of not occupying the space of the platform, and the net opening degree of the platform door is effectively improved. The device can be installed in a modularized mode, construction is convenient and fast, cost is reduced, the requirements of different vehicle types can be met, and the device has a wide application prospect.

Description

Linkage type protection device

Technical Field

The invention relates to the technical field of platform protection devices, in particular to a linkage type protection device.

Background

At present, subway, inter-city, railway and other transportation platforms are all provided with platform protective structures, and the platform protective structures are arranged between the platforms and vehicle tracks, so that the functions of isolation and protection and platform personnel safety guarantee are achieved.

Traditional platform door protective structure is the flat-open form, including the wall body that is fixed in the platform and the door body that opens for the wall body is portable, however, the flat-open platform door is when opening the door body will overlap with the wall body, and platform door no matter opens or closes and all needs to occupy the platform area, consequently, the aperture of platform door receives the influence of wall body length and door body self length, and the platform door opening is limited. When the train type in the subway and inter-city field is single, and the vertical hinged doors are arranged close to the edges of the platform in a one-to-one correspondence manner, the using requirement can be met, when the area of the platform is short, or when the train type is more, the net opening degree of the platform door needs to be increased to envelop different train types, and the passenger and landing passages opened at different train door positions, the vertical hinged platform door can not meet the requirement of randomly selecting the net opening degree, and the opening mode restricts the application range of the platform door.

Disclosure of Invention

The invention provides a linkage type protection device, which is used for solving the defects of limited net opening degree and space occupation of a side-hung platform door in the prior art, realizing the arbitrary selection of the platform opening degree and saving the platform space.

The invention provides a linkage type protection device, comprising:

the supporting columns are arranged in pairs and are provided with a first rail and a second rail which are parallel to each other;

the two ends of the first protection body are respectively connected with the first track, and the first protection body is provided with a supporting piece;

the two ends of the second protection body are respectively connected with the second track;

the driving mechanism is connected with the first protection body and is used for driving the first protection body to move along the first track;

the first protection body has a first opening degree and a second opening degree;

at the first opening degree, the first protection body and the second protection body are staggered;

and at the second opening degree, the first protection body is overlapped with the second protection body, and thrust for enabling the second protection body to move along the second track is applied to the second protection body through the supporting piece.

According to one embodiment of the invention, the first rail and the second rail are vertically arranged, the first protection body is arranged in a vertical plane where the first rail is located, and the second protection body is arranged in a vertical plane where the second rail is located;

and a limiting block is arranged on the second track and used for supporting the second protection body at the first opening position and the second opening position.

According to one embodiment of the invention, two ends of the first protection body and the second protection body are respectively provided with a connecting piece, and the connecting pieces are respectively connected with the first rail and the second rail in a sliding manner;

and at the first opening degree, the connecting piece of the second protection body is propped against the limiting block.

According to one embodiment of the invention, one end of the supporting piece is connected with the first protection body, and the other end of the supporting piece extends to the plane of the second protection body.

According to one embodiment of the invention, the driving mechanism comprises a driver, a transmission part, a screw rod and a threaded sleeve, the driver is connected with one end of the transmission part, the other end of the transmission part is connected with the screw rod, the screw rod is parallel to the first rail, and the threaded sleeve is connected with the first protection body and sleeved on the screw rod.

According to one embodiment of the invention, a counterweight guide rail parallel to the first rail is arranged in the support column, a counterweight block is arranged on the counterweight guide rail, a counterweight support wheel is further arranged in the support column, and the counterweight block is connected with the first protection body through a counterweight chain rope wound on the counterweight support wheel.

According to one embodiment of the present invention, the support column includes a bracket and a housing disposed outside the bracket, the first rail, the second rail and the driving mechanism are respectively disposed on the bracket, and the housing is provided with an opening at a position corresponding to the first rail and the second rail.

According to one embodiment of the invention, the device further comprises a wiring groove, the wiring groove is arranged on the top of the support columns, and the wiring groove extends from one support column to the other support column.

According to one embodiment of the invention, the device further comprises a third protection body and a third rail arranged on the supporting column, wherein the third rail is parallel to the first rail, and two ends of the third protection body are connected with the third rail;

the first protection body has a third opening, the third opening enables the first protection body, the second protection body and the third protection body to be overlapped, the first protection body applies thrust enabling the second protection body to move along the second track through the supporting piece to the second protection body, and the first protection body applies thrust enabling the third protection body to move along the third track through the supporting piece to the third protection body.

According to one embodiment of the invention, the protective device comprises a plurality of supporting columns, wherein the supporting columns are arranged in a straight line, and the first protective body and the second protective body are respectively arranged between every two adjacent supporting columns.

The invention provides a linkage type protection device, which is characterized in that paired support columns are arranged, a first rail and a second rail are respectively arranged on opposite sides of the two support columns, a first protection body is arranged between the first rails, a second protection body is arranged between the second rails, and the first protection body is driven to reach different opening degrees by a driving mechanism; at the first opening degree, the first protection body and the second protection body are staggered, and the opening degree of the protection device is smaller; at the second aperture, when first protection body overlaps with second protection body, promote the second protection body through holding in the palm the piece and remove, enlarge protector's aperture, the different apertures of platform door height direction has been realized, simultaneously, the distance between the support column is the horizontal aperture of platform door promptly, set up the distance between the support column and can set up the platform aperture wantonly, the drawback that the flat-open type platform aperture is limited and occupy the platform space has been solved, the freedom setting of platform aperture has been realized on the basis that does not occupy the platform space, the clean aperture of platform door has effectively been improved. The device can realize the modularization installation, is applicable to the demand of reforming transform platform installation, can realize the quick transformation of platform door, has effectively improved the efficiency of construction, reduces the cost of labor, saves time, and the installation and construction is convenient, and the practicality is strong, can satisfy the demand of different motorcycle types, has wide application prospect.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a linkage type protection device provided by the present invention;

FIG. 2 is an exploded view of a linkage type protection device provided by the present invention;

FIG. 3 is a schematic view of the internal structure of a supporting column of the linkage type protection device provided by the present invention;

FIG. 4 is a side view of the linked guard provided by the present invention at a first opening;

FIG. 5 is a side view of the linked guard provided by the present invention between first and second degrees of openness;

FIG. 6 is a side view of a coordinated type protection device provided by the invention at a second opening position;

FIG. 7 is a side view of one embodiment of a linked guard provided by the present invention at a third opening;

FIG. 8 is a schematic structural view of another embodiment of the coordinated type protection device provided by the present invention.

Reference numerals:

100: a support column; 110: a first track; 120: a second track; 130: a third track; 210: a first protective body; 220: a second protective body; 230: a third protection body; 300: a wiring groove; 400: a connecting member; 501: a driver; 502: a transmission member; 503: a screw rod; 504: a threaded sleeve; 601: a counterweight block; 602: a counterweight guide rail; 603: a counterweight chain rope; 604: a counterweight support wheel; 700: a holder; 800: and a limiting block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of 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 embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Specific embodiments of the present invention are described below in conjunction with fig. 1-8:

as shown in fig. 1, an embodiment of the present invention provides a linkage type protection device, which comprises at least two support columns 100 and a protection door, wherein the two support columns 100 are arranged in pairs and are arranged at a certain distance. A first rail 110 and a second rail 120 are respectively provided on opposite side surfaces of the two support columns 100, and the first rail 110 and the second rail 120 are parallel to each other.

The protective door comprises a first protective body 210 and a second protective body 220, two ends of the first protective body 210 are respectively connected with the first rail 110, the surface of the first protective body 210 is provided with a supporting piece 700 protruding outwards, and the first protective body 210 slides between the two supporting columns 100 through the first rail 110.

The two ends of the second protection body 220 are respectively connected to the second rails 120, and the second protection body 220 slides between the two support columns 100 through the second rails 120. The second protection body 220 and the first protection body 210 are parallel to each other and move in different planes.

The driving mechanism is further provided in this embodiment, and the driving mechanism is connected to the first protection body 210, and is configured to drive the first protection body 210 to move along the first rail 110, so as to provide power for the movement of the first protection body 210.

In the embodiment, which is disposed at the edge of the platform in use, preferably, the supporting column 100 of the embodiment is vertically disposed, the first rail 110 and the second rail 120 are vertically disposed, the first protection body 210 is disposed in a vertical plane of the first rail 110, and the second protection body 220 is disposed in a vertical plane of the second rail 120. In this way, the first protection body 210 and the second protection body 220 realize the lifting in the vertical direction, and the opening and closing in the vertical direction of the platform door is achieved.

Of course, the support column 100 and the guard door of the present invention are not limited to vertical installation, and it is also possible to have a certain offset in the vertical direction.

In this embodiment, the movement of the first and

second shield bodies

210 and 220 has two opening degrees:

as shown in fig. 4, in the first opening degree, i.e. the process from closing to lifting the first protection body 210 to being flush with the second protection body 220, the second protection body 220 is fixed and the second protection body 220 is higher than the first protection body 210, and the first protection body 210 and the second protection body 220 are staggered from each other. When the opening degree of the first protective body 210 is the maximum, the first protective body 210 overlaps the second protective body 220. Therefore, for the first opening degree, the maximum opening degree of the first shielding body 210 is determined by the height of the bottom of the second shielding body 220.

As shown in fig. 5 and 6, at the second opening degree, the first shield body 210 overlaps the second shield body 220; the first guard body 210 applies a pushing force to the second guard body 220 through the bracket 700 to move the second guard body 220 along the second rail 120. That is, at the second opening degree, the first protection body 210 drives the second protection body 220 to move together while moving, and the second protection body 220 is lifted, so that the opening degree of the platform door is further increased.

In this process, the second protection body 220 is lifted by the pushing force of the first protection body 210, the second protection body 220 is lowered by its own weight, and when the first protection body 210 is lifted, the second protection body 220 is freely lowered by the weight, and the second protection body 220 is lowered to its initial height and stops.

As shown in fig. 4 to 6, in an embodiment, a limit block 800 is disposed on the second rail 120, and the limit block 800 is used for supporting the second protection body 220 at the first opening degree. That is, the height of the stopper 800 determines the lowest position of the second protective body 220.

Preferably, the position of the limiting block 800 on the second rail 120 can be adjusted, so as to adjust the lowest position of the second protection body 220, and achieve the maximum upper limit adjustment of the first opening degree.

In the embodiment, the supporting columns 100 are arranged in pairs, the first rail 110 and the second rail 120 are respectively arranged on the opposite sides of the two supporting columns 100, the first protection body 210 is arranged between the first rails 110, the second protection body 220 is arranged between the second rails 120, and the driving mechanism drives the first protection body 210 to reach different opening degrees; at the first opening degree, the first protection body 210 and the second protection body 220 are staggered, and the opening degree of the protection device is smaller; at the second opening degree, when the first protection body 210 and the second protection body 220 are overlapped, the second protection body 220 is pushed to move through the supporting piece 700, the opening degree of the protection device is enlarged, different opening degrees of the platform door in the height direction are realized, meanwhile, the distance between the supporting columns 100 is the horizontal opening degree of the platform door, the platform opening degree can be set at will by setting the distance between the supporting columns 100, the defects that the opening degree of a flat-open platform is limited and the platform space is occupied are overcome, the free setting of the platform opening degree is realized on the basis that the platform space is not occupied, and the net opening degree of the platform door is effectively improved.

The linkage type protection device provided by the embodiment can also realize modular installation, and because the platform is usually modified at a 'skylight point' (the 'skylight point' means that a train operation line is not drawn or the train operation is adjusted and reduced in a train schedule, and the time is ensured for engineering and maintenance work).

As shown in fig. 2 and 3, in one embodiment, the first protective body 210 and the second protective body 220 are respectively provided with a connecting member 400 at both ends thereof, and the connecting members 400 are respectively slidably connected with the first rail 110 and the second rail 120.

Specifically, two ends of the first protection body 210 and the second protection body 220 are respectively provided with two connecting members 400, and in the first opening degree, one connecting member 400 of the second protection body 220 close to the lower side is abutted against the limiting block 800.

Further, the first rail 110 and the second rail 120 are both vertically arranged slide rails, the connecting member 400 is sleeved on the slide rails, the connecting member 400 is internally provided with a resistance-reducing universal wheel, and the connecting member 400 is slidably connected with the slide rails through the resistance-reducing universal wheel.

As shown in fig. 4-6, in one embodiment, the holder 700 has one end connected to the first protection body 210 and the other end extending to the plane of the second protection body 220, so that the holder 700 can hold the second protection body 220 to provide an upward pushing force for the second protection body 220.

Specifically, the supporting member 700 is a flat plate structure, the supporting member 700 is disposed at the bottom of the first protection body 210, and when the opening degree is the second opening degree, the supporting member 700 abuts against the lower end of the second protection body 220, so that the first protection body 210 and the second protection body 220 are overlapped.

Preferably, the bracket 700 may be disposed on the connecting member 400, so that the bracket 700 is located inside the supporting seat 100, thereby improving the aesthetic appearance of the platform door.

As shown in fig. 3, in one embodiment, the driving mechanism includes a driver 501, a transmission member 502, a screw rod 503 and a threaded sleeve 504, the driver 501 is connected to one end of the transmission member 502, the other end of the transmission member 502 is connected to the screw rod 503, the screw rod 503 is parallel to the first rail 110, and the threaded sleeve 504 is connected to the first protection body 210 and is sleeved on the screw rod 503.

In this embodiment, the driver 501 may be a motor, an electric motor, or the like, and the transmission member 502 may be a transmission mechanism such as a gear assembly, a pulley, or a chain. Of course, the driving mechanism may be a hydraulic cylinder or the like, as long as the platform door can be lifted, and the driving mechanism is not limited herein.

As shown in fig. 3, in one embodiment, the first protection body 210 is further provided with a counterweight mechanism. Specifically, a counterweight guide rail 602 parallel to the first rail 110 is arranged in the support column 100, a counterweight block 601 is arranged on the counterweight guide rail 602, a counterweight support wheel 604 is further arranged in the support column 100, and the counterweight block 601 is connected with the first protection body 210 through a counterweight chain rope 603 wound on the counterweight support wheel 604.

Of course, in this embodiment, not only the first protection body 210 but also the second protection body 220 can be provided with a weight mechanism, and the connection manner of the weight mechanism of the second protection body 220 is the same as that of the first protection body 210, which is not described herein again.

As shown in fig. 3, the weight mechanisms of the first and second

protective bodies

210 and 220 may be arranged in pairs, a weight support wheel 604 is provided at the top end of the inside of the support column 100, and a weight chain rope 603 may be connected to the corresponding connector 400.

The facility of counter weight mechanism can correspondingly reduce the self-weight of first protection body 210 and second protection body 220 to alleviate actuating mechanism's load, also can guarantee the security that first protection body 210 and second protection body 220 go up and down, simultaneously, owing to set up counter weight mechanism, when actuating mechanism breaks down, first protection body 210 and second protection body 220 can rise automatically, prevent that the platform door from not opening.

In this embodiment, the supporting column 100 includes a bracket and a casing disposed outside the bracket, the first rail 110, the second rail 120, the driving mechanism, and the counterweight mechanism are disposed on the bracket respectively, and the casing is provided with an opening at a position corresponding to the first rail 110 and the second rail 120. The first protection body 210 and the second protection body 220 respectively extend into the shell through the openings, and the shell is isolated from the inside and the outside, so that the appearance is ensured to be complete and attractive.

As shown in fig. 1 and 2, a wiring groove 300 is further provided between the two support columns 100, the wiring groove 300 is provided on the top of the support columns 100, and the wiring groove 300 extends from one support column 100 to the other support column 100. The wiring groove 300 is in a U-shaped groove shape, the U-shaped opening of the wiring groove 300 faces downwards to cover the platform door, wiring can be arranged in the wiring groove 300, electronic devices in the two support columns 100 are connected, and management of the lines is facilitated.

As shown in fig. 7, in one embodiment, the platform door may further include three layers, the platform door includes a first protection body 210, a second protection body 220, and a third protection body 230, and correspondingly, the two support columns 100 further include a third rail 130, the third rail 130 is parallel to the first rail 110 and the second rail 120, and two ends of the third protection body 230 are connected to the third rail 130. Here, the structure and the connection manner of the third protection body 230 may be the same as those of the first protection body 210 and the second protection body 220, and are not described herein again.

In this embodiment, the initial position of the third protection body 230 is higher than that of the second protection body 220, preferably, referring to the limit block 800 of the second protection body 220, another limit block 800 is disposed at a position higher than that of the second protection body 220 on the third rail 130, and the third protection body 230 is supported by the limit block 800. In order to ensure the range of motion of each platform door, the three rails are provided with the same length.

Therefore, the first protection body 210 may further continue to rise after reaching the second opening degree, and have a third opening degree, at which the first protection body 210, the second protection body 220, and the third protection body 230 overlap, the first protection body 210 applies a rising thrust to the second protection body 220 through the holder 700, and the first protection body 210 also applies a rising thrust to the third protection body 230 through the holder 700.

As shown in fig. 7, the first protection body 210 drives the second protection body 220 and the third protection body 230 to ascend through the supporting member 700, so as to further improve the opening degree of the platform door in the height direction, when the first protection body 210 descends, the second protection body 220 and the third protection body 230 stop moving when reaching their respective lowest positions, at this time, the first protection body 210 is located at the lowest end, the second protection body 220 is located at the middle portion, the third protection body 230 is located at the upper end, the first protection body 210, the second protection body 220 and the third protection body 230 are staggered with respect to each other, and the platform door is closed together.

Based on this principle, the present invention is not limited to the first protection body 210, the second protection body 220, and the third protection body 230, and in order to increase the opening height of the platform door, a plurality of platform doors may be provided, and the overlapping and lifting operation of the platform doors may be implemented.

In this embodiment, two support columns 100 and the platform door therebetween form one lifting unit, but the invention is not limited to two support columns 100, that is, a plurality of lifting units may be provided according to the actual requirements of the platform.

As shown in fig. 8, in one embodiment, a plurality of supporting columns 100 may be provided, the supporting columns 100 are arranged in a straight line, a first protection body 210, a second protection body 220 or a third protection body 230 is respectively disposed between adjacent supporting columns 100, and a plurality of lifting units realize different degrees of opening and closing of a plurality of doors, thereby improving the practicability of the platform door.

In an embodiment, when both sides of the supporting column 100 are connected to the platform door, the supporting column 100 may be configured to be bilaterally symmetrical, as shown in fig. 3, and the two opposite side surfaces of the supporting column 100 are respectively provided with the rails, so that one supporting column 100 functions as two supporting columns 100, the material consumption of the supporting column can be reduced, and the occupied space of the platform can be reduced.

In this embodiment, the interval between two the same support columns 100 is the horizontal width of platform door, can set up the interval of different support columns 100 in proper order and realize the horizontal aperture of platform door, simultaneously, because support column 100 adopts the structural style of stand, the horizontal width of support column 100 is less, therefore has reduced the occupation to the platform space, can be that the horizontal aperture of platform door is controlled to bigger, accords with the aperture demand of different vehicles to the platform door.

Furthermore, the support column 100 has less workload of damage and recovery, and is more suitable for projects with short construction periods. The device simple structure, the installation construction is convenient, and the practicality is strong, can satisfy the demand of different motorcycle types, has wide application prospect.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A linked guard, comprising:

the device comprises support columns (100) arranged in pairs, wherein the support columns (100) are provided with a first rail (110) and a second rail (120) which are parallel;

the two ends of the first protection body (210) are respectively connected with the first track (110), and the first protection body (210) is provided with a supporting piece (700);

a second protection body (220), wherein two ends of the second protection body (220) are respectively connected with the second rail (120);

the driving mechanism is connected with the first protective body (210) and is used for driving the first protective body (210) to move along the first track (110);

the first guard body (210) has a first opening degree and a second opening degree;

at the first opening degree, the first protection body (210) and the second protection body (220) are staggered;

at the second opening degree, the first protection body (210) is overlapped with the second protection body (220), and the supporting piece (700) applies a pushing force to the second protection body (220) to enable the second protection body (220) to move along the second track (120).

2. The coordinated type protection device according to claim 1, wherein the first rail (110) and the second rail (120) are vertically arranged, the first protection body (210) is arranged in a vertical plane of the first rail (110), and the second protection body (220) is arranged in a vertical plane of the second rail (120);

and a limiting block (800) is arranged on the second track (120), and the limiting block (800) is used for supporting the second protection body (220) at the first opening position and the second opening position.

3. The linkage type protection device according to claim 1, wherein two ends of the first protection body (210) and the second protection body (220) are respectively provided with a connecting piece (400), and the connecting pieces (400) are respectively connected with the first rail (110) and the second rail (120) in a sliding manner;

at the first opening degree, the connecting piece (400) of the second protection body (220) is abutted against the limiting block (800).

4. The linked type protection device as claimed in claim 1, wherein one end of the supporting member is connected to the first protection body, and the other end extends to the plane of the second protection body.

5. The linkage type protection device according to claim 1, wherein the driving mechanism comprises a driver (501), a transmission piece (502), a screw rod (503) and a threaded sleeve (504), the driver (501) is connected with one end of the transmission piece (502), the other end of the transmission piece (502) is connected with the screw rod (503), the screw rod (503) is parallel to the first track (110), and the threaded sleeve (504) is connected with the first protection body (210) and sleeved on the screw rod (503).

6. The linkage type protection device according to claim 1, wherein a counterweight guide rail (602) parallel to the first rail (110) is arranged in the support column (100), a counterweight block (601) is arranged on the counterweight guide rail (602), a counterweight support wheel (604) is further arranged in the support column (100), and the counterweight block (601) is connected with the first protection body (210) through a counterweight chain rope (603) wound around the counterweight support wheel (604).

7. The coordinated type protection device according to claim 1, wherein the supporting column (100) comprises a bracket and a shell arranged outside the bracket, the first rail (110), the second rail (120) and the driving mechanism are respectively arranged on the bracket, and the shell is provided with an opening at a position corresponding to the first rail (110) and the second rail (120).

8. The ganged type protection device according to claim 1, further comprising a wiring groove (300), wherein the wiring groove (300) is arranged on the top of the support columns (100), and the wiring groove (300) extends from one support column (100) to the other support column (100).

9. The coordinated type protection device according to any one of claims 1-8, further comprising a third protection body (230) and a third rail (130) arranged on the support column (100), wherein the third rail (130) is parallel to the first rail (110), and both ends of the third protection body (230) are connected with the third rail (130);

the first protection body (210) has a third opening degree, the first protection body (210), the second protection body (220) and the third protection body (230) are overlapped at the third opening degree, the first protection body (210) exerts a thrust force on the second protection body (220) through the supporting piece (700) so that the second protection body (220) moves along the second track (230), and the first protection body (210) exerts a thrust force on the third protection body (230) through the supporting piece (700) so that the third protection body (230) moves along the third track (130).

10. Linkage type protection device according to any one of claims 1 to 8, characterized by comprising a plurality of said supporting columns (100), said supporting columns (100) being arranged in a straight line, and said first protection body (210) and said second protection body (220) being respectively arranged between adjacent supporting columns (100).