Movable beam and track beam system

Abstract

The utility model provides a movable beam and a track beam system, the track beam system comprises a fixed beam and a movable beam, the fixed beam is arranged on a base plane, the fixed beam is provided with a notch section in the extending direction, the movable beam comprises a lifting device and a beam plate, the lifting device is arranged on the notch section, and the beam plate is connected to the lifting device. When the beam plate is located at the first position, the top surface of the beam plate is flush with the top surface of the fixed beam, the gap section is filled with the beam plate, and at the moment, the movable beam and the fixed beam have the same effect and are used for supporting the railway vehicle. When the beam plate is located at the second position, the top surface of the beam plate is flush with the base plane, the beam plate of the movable beam does not exceed the base plane at the moment, and the space formed by the notch section of the fixed beam can conveniently enter and exit from the side of the fixed beam for maintenance equipment.

Description

Technical Field

[0001] This utility model relates generally to the technical field of rail transit, and more specifically to a movable beam and track beam system. Background Technology

[0002] In related technologies, lifting and moving devices are typically used during the maintenance and equipment replacement of rail vehicles. The lifting device needs to be embedded into the track to lift the equipment to be removed (or replaced) for easier installation. Then, the moving device transports the removed equipment, along with the lifting device, out from under the rail vehicle. The space available for arranging the lifting and moving devices is limited by the track beams.

[0003] Therefore, there is a need to provide a movable beam and track beam system to at least partially solve the above problems. Utility Model Content

[0004] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of the present invention provides a movable beam for a track beam system, the track beam system further comprising a fixed beam disposed on a base surface, the fixed beam having a notch section in its extending direction, and the movable beam comprising:

[0006] A lifting device, the lifting device being configured to be positioned to the notch section; and

[0007] A beam plate is connected to the lifting device, and the beam plate is movable up and down relative to the fixed beam between a first position and a second position. When the beam plate is in the first position, the top surface of the beam plate is flush with the top surface of the fixed beam and the beam plate fills the gap section. When the beam plate is in the second position, the top surface of the beam plate is flush with the base surface.

[0008] Optionally, the lifting device includes:

[0009] A base, wherein the base is disposed below the base surface and is fixed to the base surface;

[0010] A scissor lift mechanism, wherein the bottom end of the scissor lift mechanism is hinged to the base, and the top end of the scissor lift mechanism is hinged to the beam plate; and

[0011] A first telescopic mechanism, one end of which is hinged to the base, and the other end of which is hinged to the scissor mechanism;

[0012] The first telescopic mechanism extends and retracts to drive the scissor mechanism to rise and fall, so that the beam can move between the first position and the second position.

[0013] Optionally, the movable beam further includes a support assembly, the support assembly comprising:

[0014] A support column, located at the bottom of the beam slab, and pivotally connected to the beam slab between an open position and a folded position; and

[0015] The second telescopic mechanism has one end hinged to the beam plate and the other end hinged to the support column. The second telescopic mechanism moves to extend and retract to drive the support column to switch between the open position and the folded position.

[0016] When the beam is in the first position and the support column is in the open position, the support column is supported between the base surface and the beam.

[0017] Optionally, the first telescopic mechanism is a hydraulic rod or an electric telescopic rod;

[0018] The second telescopic mechanism is a hydraulic rod or an electric telescopic rod.

[0019] Optionally, the base is further provided with a support pad, and when the beam is in the second position, the bottom of the beam abuts against the support pad.

[0020] Optionally, the middle part of the beam plate is recessed downward to form a U-shaped groove, the U-shaped groove extends along the extension direction of the fixed beam, and when the beam plate is in the first position, the opening of the U-shaped groove is flush with the top surface of the fixed beam.

[0021] The lifting device is connected to the bottom of the U-shaped groove.

[0022] A second aspect of this utility model provides a track beam system, the track beam system comprising:

[0023] A fixed beam, wherein the fixed beam is disposed on the base surface, and the fixed beam has a notch section in the extending direction; and

[0024] According to the first aspect of this utility model, the movable beam is disposed at the notch section.

[0025] Optionally, the track beam system further includes gantry frames, with two gantry frames positioned on either side of the fixed beam near the movable beam, and a connecting rod connecting the two gantry frames.

[0026] Optionally, the connecting rod is threaded through and connected to the fixed beam.

[0027] Optionally, the middle part of the beam plate is recessed downward to form a U-shaped groove, the U-shaped groove extends along the extension direction of the fixed beam, when the beam plate is in the first position, the opening of the U-shaped groove is flush with the top surface of the fixed beam, and a reinforcing rib is provided in the U-shaped groove, the reinforcing rib being connected between the side wall and the bottom wall of the U-shaped groove.

[0028] The track beam system also includes:

[0029] A slide rail device, wherein the slide rail device is disposed near the movable beam, the slide rail device is located between two side-by-side fixed beams, and the slide rail device forms a slide rail; and

[0030] A movable cover plate, the size of which matches the size of the U-shaped groove, and a sliding wheel matching the slide rail connected to the bottom of the movable cover plate;

[0031] When the beam is in the second position, the bottom wall of the slide rail and the U-shaped groove are flush, and the top surface of the movable cover plate is flush with the top surface of the beam.

[0032] Optionally, the track beam system further includes:

[0033] A maintenance platform, the top surface of which is flush with the base surface, includes a maintenance track whose extension direction intersects the extension direction of the fixed beam, and the maintenance track and the fixed beam intersect at the notch section; and

[0034] A transport device is provided on the maintenance track.

[0035] This utility model provides a movable beam and track beam system. The track beam system includes a fixed beam and a movable beam. The fixed beam is disposed on a base surface and has a notch section in its extending direction. The movable beam includes a lifting device and a beam plate. The lifting device is disposed at the notch section, and the beam plate is connected to the lifting device. The beam plate can move up and down relative to the fixed beam between a first position and a second position: When the beam plate is in the first position, the top surface of the beam plate is flush with the top surface of the fixed beam, and the beam plate fills the notch section. At this time, the movable beam serves as part of the fixed beam to support the track vehicle. When the beam plate is in the second position, the top surface of the beam plate is flush with the base surface. At this time, the beam plate of the movable beam does not protrude from the base surface, and the space formed by the notch section of the fixed beam facilitates the entry and exit of maintenance equipment from the side of the fixed beam. Attached Figure Description

[0036] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings,

[0037] Figure 1 This is a three-dimensional structural diagram of a movable beam according to a preferred embodiment of the present invention, wherein the movable beam is in the first position and the support column is in the open position;

[0038] Figure 2 This is a three-dimensional structural diagram of a track beam system according to a preferred embodiment of the present invention, wherein the movable beam is in the second position;

[0039] Figure 3 According to Figure 2 A three-dimensional structural diagram of the gantry in the track beam system shown.

[0040] Figure 4 This is a schematic diagram of another structure of a track beam system according to a preferred embodiment of the present invention, which shows a maintenance platform and a transportation device;

[0041] Figure 5 According to Figure 4 A three-dimensional structural diagram of the battery tooling in the diagram; and

[0042] Figure 6 This is a schematic diagram of the method for replacing the blade battery of a rail vehicle according to the rail beam system of this utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100: Track beam system; 110: Fixed beam

[0045] 111: Notched section; 112: Through hole

[0046] 120: Movable beam; 121: Lifting device

[0047] 121A: Base; 121B: Scissor mechanism

[0048] 121C: First telescopic mechanism; 122: Beam / plate

[0049] 122A: Panel; 122B: Sidewall

[0050] 122C: Base plate; 122D: Reinforcing rib plate

[0051] 123: Support column; 124: Second telescopic mechanism

[0052] 125: Support pad 126: First hinge

[0053] 127: Second hinge 128: Third hinge

[0054] 131: Movable cover plate; 132: Slide rail device

[0055] 133: Pulley 140: Gantry Frame

[0056] 141: Foma Casters 141A: Connecting Plate

[0057] 142: Column; 143: Supporting beam

[0058] 144: Connecting rod; 145: First diagonal brace

[0059] 146: Second diagonal brace 147: Third diagonal brace

[0060] 148: Web plate 149: Connector

[0061] 150: Base surface; 160: Maintenance platform

[0062] 161: Inspection track; 170: Transport device

[0063] 171: Handle 180: Battery fixture

[0064] 181: Connector 182: Main Body

[0065] 183: Polyurethane pad D: Extension direction of the fixed beam Detailed Implementation

[0066] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0067] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments and should not be construed as being limited to the embodiments set forth herein.

[0068] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of the invention. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms “upper,” “lower,” “front,” “rear,” “left,” “right,” and similar expressions used in this invention are for illustrative purposes only and are not intended to be limiting.

[0069] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0070] The specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, which show representative embodiments of the present invention and are not intended to limit the present invention.

[0071] This utility model provides a movable beam 120 and a track beam system 100. The track beam system 100 includes a movable beam 120 and a fixed beam 110. The fixed beam 110 is disposed on a base surface 150 and has a notch section 111 in the extending direction. The movable beam 120 is disposed in the notch section 111.

[0072] The movable beam 120 includes a lifting device 121 and a beam plate 122. The lifting device 121 is disposed in the notch section 111. The beam plate 122 is connected to the lifting device 121 and is capable of moving up and down relative to the fixed beam 110 between a first position and a second position. When the beam plate 122 is in the first position, the top surface of the beam plate 122 is flush with the top surface of the fixed beam 110 and the beam plate 122 fills the notch section 111. When the beam plate 122 moves to the second position, the top surface of the beam plate 122 is flush with the base surface 150.

[0073] The following is combined Figures 1 to 5 The structure of the movable beam 120 of this utility model will be described in detail in the embodiment shown.

[0074] See Figure 1 and Figure 2In this embodiment, the lifting device 121 includes a base 121A, a scissor mechanism 121B, and a first telescopic mechanism 121C. The base 121A is disposed below and fixed to the base surface 150. The bottom end of the scissor mechanism 121B is hinged to the base 121A, and the top end of the scissor mechanism 121B is hinged to the beam plate 122. One end of the first telescopic mechanism 121C is hinged to the base 121A, and the other end of the first telescopic mechanism 121C is hinged to the scissor mechanism 121B.

[0075] When the first telescopic mechanism 121C telescopically moves, it drives the scissor mechanism 121B to lift and lower, thereby causing the beam 122 to lift and lower, and enabling the beam 122 to switch positions between the first and second positions. See also Figure 1 In this embodiment, the first telescopic mechanism 121C is a hydraulic rod. The first telescopic mechanism 121C can also be an electric telescopic rod.

[0076] In other embodiments not shown in this utility model, the scissor mechanism 121B can be replaced with other lifting devices to achieve the effect of lifting the beam plate 122.

[0077] When beam 122 is in the first position, it fills the gap 111 of fixed beam 110, and the movable beam 120 as a whole supports the rail vehicle traveling on fixed beam 110. To further improve the structural strength of movable beam 120, in this embodiment, movable beam 120 also includes a support assembly, which can play an auxiliary supporting role when beam 122 is in the first position.

[0078] It can be understood that "filling" means that the size of the notch section 111 of the fixed beam 110 matches the size of the beam plate 122 of the movable beam 120.

[0079] Specifically, see Figure 1 and Figure 2 The support assembly includes a support column 123 and a second telescopic mechanism 124. The support column 123 is located at the bottom of the beam 122 and is pivotally connected to the beam 122 between an open position and a folded position. Figure 1 As shown, when the beam plate 122 is in the first position, the scissor mechanism 121B is relatively weak. To prevent fatigue of the scissor mechanism 121B caused by frequent vehicle traffic, the support column 123 is typically pivoted to the open position when the beam plate 122 is in the first position. At this time, the support column 123 is supported between the base surface 150 and the beam plate 122. It can be understood that when the beam plate 122 moves to the first position, the distance between the beam plate 122 and the base surface 150 is larger, and the support column 123 can pivot between the open position and the folded position.

[0080] One end of the second telescopic mechanism 124 is hinged to the beam plate 122, and the other end is hinged to the support column 123. When the second telescopic mechanism 124 extends or retracts, it can cause the support column 123 to pivot relative to the beam plate 122, thereby allowing the support column 123 to switch between an open position and a folded position. Figure 1 As shown, the support column 123 is connected to the beam plate 122 via a first hinge 126, and the second telescopic mechanism 124 is connected to the beam plate 122 via a second hinge 127, with the first hinge 126 and the second hinge 127 spaced apart. The other end of the second telescopic mechanism 124 is connected to the support column 123 via a third hinge 128, with the third hinge 128 spaced apart from the first hinge 126.

[0081] It is understandable that when the support column 123 is in the open position, the second telescopic member can play a supporting and limiting role, so that the support column 123 can be kept in the first position. Figure 1 The central support column 123 is in the open position, and the support column 123 is approximately perpendicular to the beam 122 and the base surface 150. Figure 2 The central support column 123 is located in the folded position, and the support column 123 is approximately parallel to the beam 122 and the base surface 150.

[0082] In this embodiment, multiple support columns 123 are provided at the bottom of the beam 122. When the beam 122 is in the first position, the support columns in the open position can evenly transfer the load borne by the beam 122 to the base surface 150.

[0083] Preferably, the second telescopic mechanism 124 can be a hydraulic rod or an electric telescopic rod. In this embodiment, the second telescopic mechanism 124 is also a hydraulic rod.

[0084] Preferably, a support pad 125 is also provided on the base 121A. When the beam plate 122 is in the second position, the bottom of the beam plate 122 abuts against the support pad 125. The support pad 125 not only serves as an auxiliary support (beam plate 122), but also as a limiting structure for the downward movement of the beam plate 122: when the lifting device 121 rises and falls to the point where the beam plate 122 abuts against the support pad 125, the beam plate 122 reaches the second position.

[0085] In this embodiment, the track beam system 100 includes two fixed beams 110 arranged side by side. A U-shaped groove is formed in the middle of the beam plate 122 of the movable beam 120, extending along the extension direction of the fixed beams 110. Thus, a device of the track vehicle located below the top surface of the fixed beams 110 can pass through the gap between the two fixed beams 110 and the U-shaped groove structure of the movable beam 120.

[0086] Figure 1In the middle, the scissor mechanism 121B is hinged to the bottom of the U-shaped channel, and when the movable beam 120 descends to the second position, the support pad 125 abuts against the bottom of the U-shaped channel.

[0087] The U-shaped channel can be formed by a downward indentation in the middle of the beam plate 122, or it can be formed by welding together separate plates. In this embodiment, the beam plate 122 includes a connected panel 122A and a U-shaped channel. The U-shaped channel includes a connected side wall 122B and a bottom plate 122C, with the panel 122A and side wall 122B connected. The two panels 122A correspond to the positions of the two fixed beams 110, respectively. In this embodiment, the panel 122A, side wall 122B, and bottom plate 122C are welded together as a single integral component. Preferably, a reinforcing rib 122D is also provided inside the U-shaped channel, connecting the side wall 122B and the bottom wall of the U-shaped channel to improve structural strength.

[0088] The top surface of panel 122A is the top surface of beam plate 122, and panel 122A is connected to the opening of the U-shaped groove. When beam plate 122 is in the first position, the opening of the U-shaped groove is flush with the top surface of fixed beam 110, and support column 123 is connected below panel 122A.

[0089] join Figure 2 , Figure 3 and Figure 4 The track beam system 100 of this utility model also includes a gantry frame 140, a slide rail device 132, and a movable cover plate 131.

[0090] See Figure 2 The slide rail device 132 is located near the movable beam 120 between two parallel fixed beams 110, and the slide rail device 132 forms a slide rail. The bottom of the movable cover plate 131 is connected to a sliding wheel 133 that matches the slide rail, and the size of the movable cover plate 131 matches the size of the U-shaped groove.

[0091] When beam 122 is in the second position, its top surface is flush with the base surface 150, and the bottom wall of the U-shaped groove is flush with the plane of the slide rail. Moving the movable cover 131 into the U-shaped groove, the top surface of the movable cover 131 becomes flush with the top surface of beam 122. At this point, the movable cover 131 can fill the U-shaped groove. The movable cover 131 facilitates the passage of maintenance equipment through the notch section 111.

[0092] It is understandable that when the beam 122 is in the second position, the U-shaped groove and the lifting device 121 are both located below the base surface 150. Similarly, the slide rail device 132 and the movable cover plate 131 are also installed below the base surface 150. Figure 2 In the middle, the slide rail device 132 is constructed as a supporting frame structure.

[0093] Preferably, to prevent the movable cover plate 131 from moving relative to the U-shaped groove, a pin structure can be provided between the movable cover plate 131 and the bottom plate 122C of the U-shaped groove. The pin structure ensures that after the movable cover plate moves into the U-shaped groove and matches the opening of the U-shaped groove, no relative displacement occurs between the two. For example, the pin can be movably connected to the side wall 122B of the U-shaped groove. When the pin extends into the U-shaped groove and interferes with the sliding wheel 133, the sliding wheel 133 is blocked and cannot move along the extension direction of the fixed beam 110.

[0094] See Figure 2 and Figure 3 Two gantry frames 140 are respectively installed on both sides of the fixed beam 110, see [reference]. Figure 4 The gantry frame 140 is positioned at the notch section 111. A connecting rod 144 connects the two gantry frames 140 to prevent them from tipping over under stress. See also... Figure 2 The connecting rod 144 passes through and connects to the fixed beam 110, keeping the gantry 140 and the fixed beam 110 fixed, which can further improve the stability of the gantry 140 and prevent the gantry 140 from tipping over. The fixed beam 110 is provided with a through hole 112 near the notch section 111, allowing the connecting rod 144 to pass through (see...). Figure 1 ).

[0095] like Figure 3 As shown, the single-sided gantry frame 140 includes casters 141, columns 142, and support beams 143. The bottom end of each column 142 is connected to the casters 141 via a connecting plate 141A, and the support beams 143 are connected to the tops of the two columns 142. To improve the stability of the gantry frame 140, in this embodiment, a first diagonal brace 145 is provided between the column 142 and the base surface 150, a second diagonal brace 146 is provided between the column 142 and the connecting rod 144, and a third diagonal brace 147 is provided between the support beams 143 and the column 142, ensuring the overall stability of the gantry frame 140.

[0096] Figure 3 In the gantry 140, the supporting crossbeam 143 is also provided with a connector 149 for connecting the vehicle body. The connector 149 is Z-shaped, with one end detachably fixed to the vehicle body and the other end overlapping the supporting crossbeam 143. Preferably, the supporting crossbeam 143 is an I-beam structure. To prevent the connector 149 from deforming the top plate of the I-beam, in this embodiment, web plates 148 are added to both sides of the I-beam crossbeam.

[0097] join Figure 4In this embodiment, the track beam system 100 further includes a maintenance platform 160 and a transport device 170. The top surface of the maintenance platform 160 is flush with the base surface 150, and the maintenance platform 160 includes a maintenance track 161. The extension direction of the maintenance track 161 intersects the extension direction of the fixed beam 110, and the maintenance track 161 and the fixed beam 110 intersect at a notch section 111. The transport device 170 is disposed on the maintenance track 161. When the beam plate 122 is in the second position and the movable cover plate 131 fills the U-shaped groove, the transport device 170 can drive along the maintenance track 161 into the notch section 111.

[0098] Figure 4 and Figure 5 The transport device 170 includes a flatbed cart with handles 171 and a battery fixture 180 mounted on it. Figure 4 The transport device 170 can be used to replace the battery equipment in a vehicle. Figure 5 In the battery fixture 180, there are a connector 181, a body 182 and a polyurethane pad 183. The polyurethane pad 183 is located on the top of the body 182 and can prevent the battery fixture 180 from colliding with the battery during use.

[0099] Figure 6 A flowchart illustrating the battery replacement process for 100 pairs of vehicles using the track beam system of this invention is provided below. Figures 1 to 6 The battery replacement process is explained in detail below:

[0100] First, in the movable beam 120 Figure 1 In the state shown, drive the vehicle whose battery needs to be replaced to the area where the movable beam 120 is located (notch section 111), and position the battery of the vehicle to be replaced above the movable beam 120.

[0101] Then, operate the gantry 140 to connect and secure the car body to the gantry 140.

[0102] Then, operate the first telescopic mechanism 121C to lower the movable beam 120 to the second position. Next, move the movable cover plate 131 so that it moves from above the slide rail device 132 into the U-shaped groove of the movable beam 120, reaching the desired position. Figure 4 The state shown;

[0103] The operation causes the transport device 170 to move directly under the vehicle through the notch section 111. The movable beam 120 begins to rise and drives the transport device 170 to rise until the battery fixture 180 contacts the bottom edge of the vehicle's battery.

[0104] Next, the support bracket connecting the edge of the battery to the vehicle body is separated, so that the replaced battery is supported on the battery fixture 180, and the movable beam 120 is lowered to the lowest point (second position) again.

[0105] Finally, the transport device 170, along with the battery that needs to be replaced, is removed from under the vehicle.

[0106] The process of installing a new battery into the vehicle is similar to the process described above, and will not be repeated here.

[0107] Furthermore, the track beam system of this invention can also be used for maintenance or component replacement at other locations on rail vehicles. For example, after the vehicle body is fixed, the movable beam can be lowered to the second position (beam plate 122 is in the second position) to allow for vehicle replacement.

[0108] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0109] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A movable beam for a track beam system, the track beam system further comprising a fixed beam disposed on a base surface, the fixed beam having a notch section in its extending direction, characterized in that, The movable beam includes: A lifting device, the lifting device being configured to be positioned to the notch section; and A beam plate is connected to the lifting device, and the beam plate is movable up and down relative to the fixed beam between a first position and a second position. When the beam plate is in the first position, the top surface of the beam plate is flush with the top surface of the fixed beam and the beam plate fills the gap section. When the beam plate is in the second position, the top surface of the beam plate is flush with the base surface.

2. The movable beam according to claim 1, characterized in that, The lifting device includes: A base, wherein the base is disposed below the base surface and is fixed to the base surface; A scissor lift mechanism, wherein the bottom end of the scissor lift mechanism is hinged to the base, and the top end of the scissor lift mechanism is hinged to the beam plate; and A first telescopic mechanism, one end of which is hinged to the base, and the other end of which is hinged to the scissor mechanism; The first telescopic mechanism extends and retracts to drive the scissor mechanism to rise and fall, so that the beam can move between the first position and the second position.

3. The movable beam according to claim 2, characterized in that, The movable beam also includes a support assembly, which comprises: A support column, located at the bottom of the beam slab, and pivotally connected to the beam slab between an open position and a folded position; and The second telescopic mechanism has one end hinged to the beam plate and the other end hinged to the support column. The second telescopic mechanism moves to extend and retract to drive the support column to switch between the open position and the folded position. When the beam is in the first position and the support column is in the open position, the support column is supported between the base surface and the beam.

4. The movable beam according to claim 3, characterized in that, The first telescopic mechanism is a hydraulic rod or an electric telescopic rod; The second telescopic mechanism is a hydraulic rod or an electric telescopic rod.

5. The movable beam according to claim 2, characterized in that, The base is also provided with a support pad, and when the beam is in the second position, the bottom of the beam abuts against the support pad.

6. The movable beam according to claim 1, characterized in that, The middle part of the beam plate is recessed downward to form a U-shaped groove. The U-shaped groove extends along the extension direction of the fixed beam. When the beam plate is in the first position, the opening of the U-shaped groove is flush with the top surface of the fixed beam. The lifting device is connected to the bottom of the U-shaped groove.

7. A track beam system, characterized in that, The track beam system includes: A fixed beam, wherein the fixed beam is disposed on the base surface, and the fixed beam has a notch section in the extending direction; and The movable beam according to any one of claims 1 to 6 is disposed at the notch section.

8. The track beam system according to claim 7, characterized in that, The track beam system also includes gantry frames, with two gantry frames positioned on either side of the fixed beam near the movable beam, and a connecting rod connecting the two gantry frames.

9. The track beam system according to claim 8, characterized in that, The connecting rod passes through and connects to the fixed beam.

10. The track beam system according to claim 7, characterized in that, The middle part of the beam plate is recessed downward to form a U-shaped groove. The U-shaped groove extends along the extension direction of the fixed beam. When the beam plate is located in the first position, the opening of the U-shaped groove is flush with the top surface of the fixed beam. A reinforcing rib is provided in the U-shaped groove, and the reinforcing rib is connected between the side wall and the bottom wall of the U-shaped groove. The track beam system also includes: A slide rail device, wherein the slide rail device is disposed near the movable beam, the slide rail device is located between two side-by-side fixed beams, and the slide rail device forms a slide rail; and A movable cover plate, the size of which matches the size of the U-shaped groove, and a sliding wheel matching the slide rail connected to the bottom of the movable cover plate; When the beam is in the second position, the bottom wall of the slide rail and the U-shaped groove are flush, and the top surface of the movable cover plate is flush with the top surface of the beam.

11. The track beam system according to claim 7, characterized in that, The track beam system also includes: A maintenance platform, the top surface of which is flush with the base surface, includes a maintenance track whose extension direction intersects the extension direction of the fixed beam, and the maintenance track and the fixed beam intersect at the notch section; and A transport device is provided on the maintenance track.

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