Smoke shielding structure of crown block track

Abstract

The utility model belongs to the technical field of crown blocks, and discloses a smoke shielding structure of a crown block track. Comprising a crown block rail, a rail breaking part movably arranged in the middle section of the crown block rail, a vertical wall mechanism arranged above the rail breaking part, a vertical wall driving piece arranged on one side of the vertical wall mechanism and connected with the vertical wall mechanism, a rail breaking driving piece arranged on one side of the crown block rail, and a first linkage mechanism enabling the rail breaking part to be separated from the crown block rail. The control device is electrically connected with the vertical wall driving piece and the rail breaking driving piece; and the smoke sensing element can detect smoke and send an electric signal to the control device. When the smoke sensing element detects smoke, the control device automatically starts the rail breaking driving piece and the vertical wall driving piece, so that the rail breaking part is separated from the crown block rail, a vertical wall mechanism can pass through the rail breaking part for shielding, and the rail breaking device has the advantages of being rapid in action, complete in shielding, simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead cranes, in particular to a smoke shielding structure for an overhead crane track. Background Art

[0002] At present, the installed fire and smoke isolation doors are mainly installed at the entrances and exits of buildings. If it is a large building with several internal compartments, the fire and smoke isolation doors are installed at the entrances and exits of adjacent two spaces. When a fire occurs, after the detection system detects thick smoke, it controls the fire and smoke isolation doors to start and unfold downward, and the entrances and exits are closed by the fire and smoke isolation doors. In order to ensure the fire prevention effect, such fire and smoke isolation doors are basically relatively heavy, and the manufacturing cost is relatively high.

[0003] Regarding the fire prevention in semiconductor factories, the fire prevention on the ground is not much different from that of general buildings. However, an overhead hoist transfer (OHT) system, commonly known as an overhead crane, is generally installed in the factory building. The overhead crane can effectively utilize the three-dimensional space of the factory building for handling. However, the current fire and smoke prevention system of the overhead crane has the following problems:

[0004] First, the height between the floor and the ceiling in a semiconductor factory building is 4 - 5 meters, while the common fire door is only about 2 meters high. If fire and smoke prevention of the factory building is carried out with fire doors, a large amount of modification costs are required.

[0005] Second, the thickness of the common fire door is 5 - 12 cm, and the overhead crane track on the ceiling is continuous. Even at the turning or connecting points, it is impossible to vacate a space of 5 - 12 cm, and it is difficult to vacate a space for setting a fire door from the middle of the track.

[0006] Third, for the fire and smoke prevention of the overhead crane, it is usually only possible to shield above the track through a rolling door or below the track through a fire door. Therefore, thick smoke and tongues of fire are likely to escape from the unshielded track, and the effect of fire and smoke shielding is not good.

[0007] Therefore, the above problems need to be solved urgently. Content of the Utility Model

[0008] The purpose of the utility model is to provide a smoke shielding structure for an overhead crane track to improve the fire and smoke prevention effect at the overhead crane track in a low-cost manner.

[0009] To achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A smoke shielding structure for an overhead crane track, comprising:

[0011] An overhead crane track;

[0012] A broken rail part, movably arranged in the middle section of the overhead crane track;

[0013] A vertical wall mechanism is provided above the broken rail part;

[0014] A vertical wall driving member is provided on one side of the vertical wall mechanism and is connected to the vertical wall mechanism;

[0015] A broken rail driving member is provided on one side of the overhead crane rail;

[0016] A first linkage mechanism connects the broken rail driving member and the broken rail part to separate the broken rail part from the overhead crane rail for the vertical wall mechanism to descend and pass through;

[0017] A control device is electrically connected to the vertical wall driving member and the broken rail driving member; and

[0018] At least one smoke sensing element is electrically connected to the control device, capable of detecting smoke and sending an electrical signal to the control device.

[0019] Preferably, a limiting part is provided at each position where the overhead crane rail joins the two ends of the broken rail part, and the limiting part can limit the movement range of the broken rail part.

[0020] Preferably, a vertical wall guide rail is provided on each side of the descending path of the vertical wall mechanism.

[0021] Preferably, at least one proximity sensing element electrically connected to the control device is provided on the side of the overhead crane rail close to the vertical wall mechanism. When the proximity sensing element detects the overhead crane during the descending process of the vertical wall mechanism, the proximity sensing element can send an electrical signal to the control device to make the control device control the overhead crane to stop moving.

[0022] Preferably, the first linkage mechanism has a fixed seat provided on the overhead crane rail to fix the broken rail driving member and a connecting rod member with one end pivotally connected to the broken rail driving member and the other end connected to the broken rail part.

[0023] Preferably, a transmission belt is provided between the connecting rod member and the broken rail driving member.

[0024] Preferably, the first linkage mechanism has a first screw member provided on the broken rail driving member and a first driving member provided on the broken rail part and movably connected to the first screw member.

[0025] Preferably, the first driving member has at least one first slider part provided on one side of the broken rail part and a first guide rail member parallel to one side of the first screw member and for movably connecting to the first slider part.

[0026] Preferably, a second driving member and a second linkage mechanism disposed on the first linkage mechanism are provided on one side of the overhead crane rail, and the operating direction of the second linkage mechanism is perpendicular to that of the first linkage mechanism.

[0027] Preferably, the second linkage mechanism has a second screw member disposed on the second driving member and a second driving member disposed on the first linkage mechanism and movably connected to the second screw member. The second driving member has at least one second slider portion disposed on one side of the first linkage mechanism and a second guide rail member disposed parallel to one side of the second screw member for movably connecting the second slider portion.

[0028] Advantages of the present utility model:

[0029] For the smoke shielding structure of the overhead crane rail of the present utility model, when the smoke sensing element detects smoke, an electrical signal is sent to the control device. The control device starts the rail-breaking driving member to separate the rail-breaking portion from the overhead crane rail and starts the vertical wall driving member to lower the vertical wall mechanism. At this time, the rail-breaking driving member operates, and drives the rail-breaking portion to move by using the first linkage mechanism, so that the rail-breaking portion is separated from the overhead crane rail in a flipping or linear moving manner. Then, the vertical wall mechanism passes through the overhead crane rail for smoke shielding. Since the rail-breaking driving member is disposed on the overhead crane rail, the rail-breaking portion can also be stably supported by the first linkage mechanism for the overhead crane to travel on the overhead crane rail usually. The overall structure is simple, the cost is low, and the structural strength of the overhead crane rail and the timeliness of the smoke shielding action can be taken into account. Description of the drawings

[0030] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0031] Figure 2 is an exploded view of the first embodiment of the present utility model;

[0032] Figure 3 is a schematic diagram of the vertical wall mechanism in a lowered state of the first embodiment of the present utility model;

[0033] Figure 4 is a schematic structural diagram of the second embodiment of the present utility model;

[0034] Figure 5 is a schematic structural diagram of the third embodiment of the present utility model;

[0035] Figure 6 is a schematic structural diagram of the fourth embodiment of the present utility model;

[0036] Figure 7 is one of the schematic structural diagrams of the fifth embodiment of the present utility model;

[0037] Figure 8It is the second structural schematic diagram of the fifth embodiment of the present utility model;

[0038] Figure 9 It is the first structural schematic diagram of the sixth embodiment of the present utility model;

[0039] Figure 10 It is the second structural schematic diagram of the sixth embodiment of the present utility model.

[0040] In the figure:

[0041] 1, overhead crane rail; 11, limit part; 2, broken rail part; 21, turning axis; 3, vertical wall mechanism; 31, vertical wall driving part; 32, vertical wall guide rail; 321, slider; 4, broken rail driving part; 41, axis; 42, transmission belt; 5, first linkage mechanism; 51, fixed seat; 52, connecting rod part; 53, first screw part; 54, first driving part; 541, first slider part; 542, first guide rail part; 6, control device; 7, smoke sensing element; 8, proximity sensing element; 9, second driving part; 91, second linkage mechanism; 92, second screw part; 93, second driving part; 931, second slider part; 932, second guide rail part; A, overhead crane. Detailed implementation manners

[0042] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0043] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying 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 a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] The following refers to Figures 1 to 10 to illustrate a smoke shielding structure for a crane rail provided by the present utility model.

[0047] Embodiment 1

[0048] Please refer to Figures 1 to 3 As shown, a smoke shielding structure for a crane rail includes:

[0049] A crane rail 1;

[0050] A rail breaking part 2, movably arranged in the middle section of the crane rail 1;

[0051] A vertical wall mechanism 3, arranged above the rail breaking part 2;

[0052] A vertical wall driving member 31, arranged on one side of the vertical wall mechanism 3 and connected to the vertical wall mechanism 3;

[0053] A rail breaking driving member 4, arranged on one side of the crane rail 1;

[0054] A first linkage mechanism 5, connecting the rail breaking driving member 4 and the rail breaking part 2 to separate the rail breaking part 2 from the crane rail 1 for the vertical wall mechanism 3 to vertically descend and pass through. The first linkage mechanism 5 has a fixed seat 51 arranged on the crane rail 1 to fix the rail breaking driving member 4, and a connecting rod member 52 with one end pivotally connected to the rail breaking driving member 4 and the other end connected to the rail breaking part 2;

[0055] A control device 6, electrically connected to the vertical wall driving member 31 and the rail breaking driving member 4; and

[0056] At least one smoke sensing element 7 is electrically connected to the control device 6. The smoke sensing element 7 can detect smoke and send an electrical signal to the control device 6.

[0057] Among them, the crane rail 1 is for a double-rail crane. The broken rail part 2 is a part of the crane rail 1, but is set to be separable, and its separation is controlled by a broken rail driving member 4 such as a motor. The vertical wall mechanism 3 is a rolling fire door, and its lowering or retracting is controlled by a vertical wall driving member 31 such as a motor. The control device 6 is a server or a computer, and can be electrically connected to the vertical wall driving member 31 and the broken rail driving member 4 in a wired or wireless manner. The smoke sensing element 7 is exemplified by a photoelectric smoke detector and can be set at any position in the semiconductor factory building. The corresponding examples of the above components are only examples of the preferred embodiments. Components with the same functions all belong to the scope of the present utility model and are not limited to the above examples.

[0058] Based on the above description, the structure of the present utility model has the advantages of simple structure, low production cost, rapid operation and complete shielding. As can be seen from the figure, the crane rail 1 and the broken rail part 2 of the present utility model are normally joined together under normal circumstances, which is no different from a general overhead conveying system. Although the broken rail part 2 is in a separable form, since the broken rail driving member 4 is connected to the crane rail 1, the broken rail part 2 can also stably support the crane A to travel on the crane rail 1 through the first linkage mechanism 5.

[0059] When the smoke sensing element 7 detects smoke, in addition to sounding an alarm, it also sends an electrical signal to the control device 6 at the same time. After receiving the electrical signal, the control device 6 automatically sends electrical signals to the broken rail driving member 4 and the vertical wall driving member 31. One end of the connecting rod member 52 is connected to the axis 41 of the broken rail driving member 4, and the other end of the connecting rod member 52 is fixedly connected to the broken rail part 2. When the broken rail driving member 4 operates, the broken rail part 2 will flip up or down around the axis 41, so that the broken rail part 2 is separated from the crane rail 1, and a hollow space sufficient for the vertical wall mechanism 3 to pass through is formed at the position where the broken rail part 2 originally was. At this time, the vertical wall driving member 31 controls the vertical wall mechanism 3 to descend, so that the vertical wall mechanism 3 can pass through the crane rail 1 to block smoke, and can also abut against the wall on the ground or other fire doors to form a smoke-proof wall extending from the ground to the ceiling. The actions of the above-mentioned broken rail driving member 4 and vertical wall driving member 31 are not limited to the order of priority, as long as they avoid mutual collision during operation. The overall structure is simple, the production cost is low, the protection action is timely, and the crane rail 1 is effectively shielded to take into account the normal use of the crane A and the safety during a fire.

[0060] Embodiment 2

[0061] Please refer to Figure 4As shown, the difference between this embodiment and the first embodiment is that a limiting portion 11 is provided at each position where the overhead crane rail 1 is joined to both ends of the broken rail portion 2. The limiting portion 11 can limit the moving range of the broken rail portion 2. The limiting portion 11 is an inclined surface or a step on the overhead crane rail 1 that fits the position of the broken rail portion 2, causing the broken rail portion 2 to form a trapezoid with a wider bottom and a narrower top. When the broken rail portion 2 is driven by the broken rail driving member 4 to be located on the overhead crane rail 1, in addition to using the stroke of the broken rail driving member 4 to control the moving distance of the broken rail portion 2, the limiting portion 11 can also be used to abut against the broken rail portion 2 to avoid height errors or uneven transitions after the connection between the overhead crane rail 1 and the broken rail portion 2, which may cause vibrations when the overhead crane A passes through the connection between the overhead crane rail 1 and the broken rail portion 2, thereby improving the adaptability to the stroke error of the broken rail driving member 4 and the stability of the movement of the overhead crane A.

[0062] In addition, a vertical wall guide rail 32 is provided on each side of the descending path of the vertical wall mechanism 3. The vertical wall guide rail 32 is connected to the wall or column outside the overhead crane rail 1. A slider 321 fixed to the vertical wall mechanism 3 is slidably connected inside the vertical wall guide rail 32. By using the vertical wall guide rail 32, the vertical wall mechanism 3 can be stably located between the overhead crane rails 1 during the lifting or descending process or in the descending position, avoiding the vertical wall mechanism 3 from being blown by the wind and hitting the overhead crane rail 1.

[0063] Embodiment Three

[0064] Please refer to Figure 5 As shown, the difference between this embodiment and the second embodiment is that a transmission belt 42 is provided between the connecting rod member 52 and the broken rail driving member 4. Adding the transmission belt 42 for transmission does not affect the movement of the broken rail portion 2. However, if the transmission without the transmission belt 42 is adopted, the axis 41 of the broken rail driving member 4 needs to be coaxially arranged with the rotation axis 21 of the broken rail portion 2. Setting the transmission belt 42 can make the installation position of the broken rail driving member 4 more flexible and can be freely adjusted according to the changes of the overhead crane rail 1 and the environmental wall surface.

[0065] In addition, at least one proximity sensing element 8 electrically connected to the control device 6 is provided on the side of the overhead crane rail 1 close to the vertical wall mechanism 3. In this embodiment, the proximity sensing element 8 is exemplified by a proximity sensor. When the vertical wall mechanism 3 is in the descending position and the proximity sensing element 8 detects the overhead crane A, an electrical signal is sent to the control device 6, and the control device 6 controls the overhead crane A to stop moving. Generally, when the vertical wall mechanism 3 is in the descending position, the control device 6 will also send a stop signal to the overhead crane A at the same time. However, there may be uncontrollable factors during a fire, resulting in the overhead crane A not receiving the signal. Therefore, the proximity sensing element 8 is additionally used to detect whether there is an overhead crane A approaching near the vertical wall mechanism 3, adding an additional safety mechanism for anti-collision of the overhead crane A.

[0066] Embodiment Four

[0067] Please refer to Figure 6 As shown, the difference between this embodiment and Embodiment III is that the first linkage mechanism 5 has a first screw member 53 connected to the rail-breaking driving member 4 and a first driving member 54 connected to the rail-breaking part 2 and movably connected to the first screw member 53. In this embodiment, the driving mode of the first linkage mechanism 5 is changed to screw drive, so that the moving path of the rail-breaking part 2 is changed to linear movement. In this embodiment, the first screw member 53 is horizontally arranged on one side of the rail-breaking part 2. When the rail-breaking driving member 4 acts, the first driving member 54 is used to pull the rail-breaking part 2 to move axially outward along the first screw member 53, and the space can also be vacated for the vertical wall mechanism 3 to pass through.

[0068] Embodiment V

[0069] Please refer to Figure 7 and Figure 8 As shown, the difference between this embodiment and Embodiment IV is that the first driving member 54 has at least one first slider part 541 connected to one side of the rail-breaking part 2 and a first guide rail member 542 arranged in parallel on one side of the first screw member 53 and slidably connected to the first slider part 541. The first screw member 53 is threadedly connected to the first slider part 541. Based on the above, when the rail-breaking part 2 moves along the first screw member 53, the cooperation of the first slider part 541 and the first guide rail member 542 can be further utilized to make the rail-breaking part 2 smoothly linearly slide, where Figure 7 when the rail-breaking part 2 moves downward, the first guide rail member 542 is connected to the wall surface on one side of the overhead crane track 1, Figure 8 when the rail-breaking part 2 moves outward horizontally, the first guide rail member 542 is connected below the overhead crane track 1( Figure 8 is a perspective view of a three-dimensional object retaining only the components associated with the rail-breaking part 2). By using the first slider part 541 and the first guide rail member 542, when the rail-breaking part 2 is reset to the overhead crane track 1, it can be accurately joined with the overhead crane track 1, which can not only avoid the edge collision between the rail-breaking part 2 and the overhead crane track 1 and damage the overhead crane track 1, but also improve the smoothness of the overhead crane A passing through the connection between the rail-breaking part 2 and the overhead crane track 1 and extend the overall service life.

[0070] Embodiment VI

[0071] Please refer to Figure 9 and Figure 10As shown in the figure, the difference between this embodiment and the fifth embodiment is that a second driving member 9 is connected to one side of the overhead crane track 1, and a second linkage mechanism 91 connected to the first linkage mechanism 5, and the operating direction of the second linkage mechanism 91 is perpendicular to the operating direction of the first linkage mechanism 5. The second linkage mechanism 91 has a second screw member 92 connected to the second driving member 9, and a second driving member 93 connected to the first linkage mechanism 5 and movably connected to the second screw member 92. The second driving member 93 has at least one second slider portion 931 connected to one side of the first linkage mechanism 5, and a second guide rail member 932 arranged parallel to one side of the second screw member 92 and slidably connected to the second slider portion 931. The second screw member 92 is threadedly connected to the second slider portion 931. Based on the above, the separation path of the broken rail portion 2 from the overhead crane track 1 is changed to an L shape. In this embodiment, first, the broken rail driving member 4 is used to make the broken rail portion 2 disengage from the overhead crane track 1 upward or downward (the operation process is the same as that of the previous embodiment), and then the second driving member 9 is used to drive the second linkage mechanism 91 to work, so that the first linkage mechanism 5 is driven by the second linkage mechanism 91 together. When working, the second driving member 93 is used to make the first linkage mechanism 5 move along the axial direction of the second screw member 92, and the first linkage mechanism 5 is translated on the second guide rail member 932 through the second slider portion 931. Therefore, the moving process is also relatively stable, and the moving directions of the first linkage mechanism 5 and the second linkage mechanism 91 are perpendicular to each other, thus forming an L-shaped moving path, so as to illustrate the separated design of the broken rail portion 2 from the overhead crane track 1, without limiting the separation direction or separation method of the broken rail portion 2.

[0072] The technical effects of the smoke shielding structure of the overhead crane track of the present utility model are as follows:

[0073] First, by arranging the broken rail portion 2 in the overhead crane track 1, the vertical wall mechanism 3 can pass through the overhead crane track 1 for shielding, and the manufacturing cost is relatively low.

[0074] Second, by arranging the broken rail driving member 4, cooperating with the control device 6 and the smoke sensing element 7, both the structural strength of the overhead crane track 1 and the timeliness of the smoke shielding action are taken into account.

[0075] Third, by arranging the limiting portion 11, the engagement between the overhead crane track 1 and the broken rail portion 2 is smoother and more stable.

[0076] Fourth, by arranging the vertical wall guide rail 32, the vertical wall mechanism 3 suspended from the ceiling is not easily swung, thereby preventing the vertical wall mechanism 3 from hitting the overhead crane track 1 and the broken rail portion 2, and the risk of the broken rail portion 2 falling off can be reduced.

[0077] Fifth, by arranging the proximity sensing element 8, an additional layer of mechanism protection can be added to the protection mechanism of the overhead crane A colliding with the vertical wall mechanism 3.

[0078] Sixth, the first linkage mechanism 5 separates the rail breakage part 2 from the overhead crane rail 1 in various ways to improve the adaptability of the overall structure.

[0079] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A smoke shielding structure for an overhead travelling vehicle track, characterized in that: include: One day car track (1); A rail breaking part (2) movably arranged in the middle section of the overhead travelling vehicle track (1); A vertical wall mechanism (3) is arranged above the rail breaking portion (2); A vertical wall driving member (31) is arranged on one side of the vertical wall mechanism (3) and is connected to the vertical wall mechanism (3); A rail breaking driving member (4) is arranged on one side of the overhead travelling vehicle track (1); a first linkage mechanism (5) connecting the rail-breaking driving member (4) and the rail-breaking portion (2) so as to separate the rail-breaking portion (2) from the overhead travelling vehicle track (1) to allow the vertical wall mechanism (3) to descend and pass through; a control device (6) electrically connected to the vertical wall driving component (31) and the broken rail driving component (4); and At least one smoke sensing element (7) is electrically connected to the control device (6) and is capable of detecting smoke and sending an electrical signal to the control device (6).

2. The smoke shielding structure of the overhead travelling vehicle track according to claim 1, characterized in that: The positions where the overhead crane track (1) is joined to the two ends of the broken rail part (2) are each provided with a limiting part (11), and the limiting part (11) can limit the movement range of the broken rail part (2).

3. The smoke shielding structure of the overhead travelling vehicle track according to claim 1, characterized in that: A vertical wall guide rail (32) is respectively provided on both sides of the descending path of the vertical wall mechanism (3).

4. The smoke shielding structure of the overhead travelling vehicle track according to claim 1, characterized in that: At least one proximity sensing element (8) electrically connected to the control device (6) is provided on one side of the overhead crane track (1) close to the vertical wall mechanism (3); when the vertical wall mechanism (3) is in the process of descending and the proximity sensing element (8) detects the overhead crane (A), the proximity sensing element (8) can send an electrical signal to the control device (6), so that the control device (6) controls the overhead crane (A) to stop moving.

5. The smoke shielding structure of the overhead travelling vehicle track according to claim 1, characterized in that: The first linkage mechanism (5) comprises a fixing seat (51) arranged on the overhead crane track (1) to fix the rail breaking driving component (4) and a connecting rod component (52) having one end pivotally connected to the rail breaking driving component (4) and the other end connected to the rail breaking portion (2).

6. The smoke shielding structure of the overhead travelling vehicle track according to claim 5, characterized in that: A transmission belt (42) is provided between the connecting rod member (52) and the rail breaking driving member (4).

7. The smoke shielding structure of the overhead travelling vehicle track according to claim 1, characterized in that: The first linkage mechanism (5) comprises a first screw member (53) arranged on the rail breaking driving member (4), and a first driving member (54) arranged on the rail breaking portion (2) and movably connected to the first screw member (53).

8. The smoke shielding structure of the overhead travelling vehicle track according to claim 7, characterized in that: The first driving member (54) has at least one first sliding block portion (541) arranged on one side of the broken rail portion (2), and a first guide rail member (542) arranged parallel to one side of the first screw member (53) and movably connected to the first sliding block portion (541).

9. The smoke shielding structure of the overhead travelling vehicle track according to claim 7, characterized in that: A second driving member (9) and a second linkage mechanism (91) arranged on the first linkage mechanism (5) are provided on one side of the overhead travelling vehicle track (1), and the actuation direction of the second linkage mechanism (91) is perpendicular to the actuation direction of the first linkage mechanism (5).

10. The smoke shielding structure of the overhead travelling vehicle track according to claim 9, characterized in that: The second linkage mechanism (91) comprises a second screw member (92) arranged on the second driving member (9), and a second driving member (93) arranged on the first linkage mechanism (5) and movably connected to the second screw member (92), and the second driving member (93) comprises at least one second sliding block portion (931) arranged on one side of the first linkage mechanism (5), and a second guide rail member (932) arranged parallel to one side of the second screw member (92) and movably connected to the second sliding block portion (931).

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