Tunnel cable trench cover installation trolley

Abstract

The present invention relates to a trolley for installing a cable trench cover plate in a tunnel, comprising a support frame, a bottom portion of which is provided with moving wheels capable of driving the support frame to move horizontally, the moving wheels being equipped with a brake mechanism, an upper portion of which is supported by a crossbar, one end of which is cantilevered from the outside of the support frame and provided with a lifting device, at least one pair of oppositely arranged L-shaped clamping plates being provided below the lifting device, each pair of L-shaped clamping plates being used to clamp and support upwardly the opposite sides of the cover plate, and the lifting device being used to raise and lower the cover plate. The support frame can move under the action of the bottom moving wheels, the support frame can ensure the safe operation of the lifting device, the L-shaped clamping plates can ensure the stable clamping and lifting of the cover plate, the lifting device can safely lift or lower the cover plate, and realize the opening and installation of the cover plate, making the operation safer, and eliminating the need for manual handling, resulting in low labor consumption, labor-saving operation, higher construction efficiency, and faster construction progress.

Description

Technical Field

[0001] The invention relates to the technical field of cable trench cover installation, in particular to a tunnel cable trench cover installation trolley. Background Art

[0002] After the civil engineering work in a tunnel project is completed, the tunnel cable trench cover is installed. When the tunnel electromechanical engineering team arrives on site, the cover must be reopened to lay the cables in the trench. Once the cables are installed, the cover must be re-closed. Conventional practice involves manually opening the cover, moving it aside, and then manually moving it to the cable trench for installation after the cables are laid. This operation is labor-intensive and labor-intensive, and it impacts the overall construction schedule. Summary of the Invention

[0003] The purpose of the present invention is to provide a tunnel cable trench cover installation trolley in view of the problems that the opening and installation of cable trench covers in tunnels in the prior art are both handled manually, which results in high labor consumption and laborious manual operation, thereby leading to low construction efficiency, slow progress and major safety hazards.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The tunnel cable trench cover installation trolley includes a support frame, a movable wheel is provided at the bottom of the support frame, the movable wheel can drive the support frame to move horizontally, the movable wheel is equipped with a brake mechanism, the upper part of the support frame is supported by a cross bar, one end of the cross bar is cantilevered from the outside of the support frame and is provided with a lifting device, at least one pair of oppositely arranged L-shaped clamps is provided under the lifting device, each pair of L-shaped clamps is used to clamp and support the opposite sides of the cover plate upwards, and the lifting device is used to raise and lower the cover plate.

[0006] The tunnel cable trench cover installation trolley described in this scheme has a support frame that can move under the action of the bottom moving wheels, so that the trolley can be moved to the designated working position and fixed to ensure stability during operation; the cross bar is supported on the upper part of the support frame, and one end of it is supported by the support frame to maintain the balance of the cantilevering operation at the other end; the support frame is extended out through the cross bar cantilever to provide a vertical working space for the lifting device connected to one end of the cross bar cantilever, and at least one pair of oppositely arranged L-shaped clamps under the lifting device can clamp and support the opposite sides of the cover upward to maintain upward support for the cover, so that the lifting device can safely lift or lower the cover to achieve opening and installation of the cover. This method can ensure the safe operation of the lifting device through the support frame, and can ensure stable clamping and lifting of the cover through the L-shaped clamp, making the operation safer and eliminating the need for manual handling, with low labor consumption, labor-saving operation, higher construction efficiency and faster construction progress.

[0007] Preferably, the support frame includes a first storage platform and a second storage platform arranged upper and lower, and the first storage platform and the second storage platform are connected by a number of vertically arranged columns, and the columns are arranged on both sides of the first storage platform parallel to the cross bar, and the columns are arranged at intervals along the edge of the first storage platform, and a diagonal support rod is provided on the side of the first storage platform away from the lifting device, and the diagonal support rod is diagonally connected between the same sides of the first storage platform and the second storage platform, and a cover plate can be placed between the first storage platform and the second storage platform.

[0008] Both the first and second storage platforms can be used for storage, depending on the situation. The vertical columns and diagonal braces shield the first platform from three sides, except for the side corresponding to the lifting device. This allows the cover plate to be placed between the first and second platforms from the side corresponding to the lifting device, without sliding out from the other three sides. The cover plate placed between the first and second platforms also serves as a ballast, enhancing the stability of the support frame.

[0009] Preferably, a tool box is fixed above the second storage platform, and a mobile cable reel is fixed in the tool box. The side wall of the mobile cable reel is provided with a plurality of sockets. The tool box is convenient for placing relevant working tools, and the mobile cable reel can supply power to various electrical equipment. When the lifting device is an electrical equipment, the mobile cable reel can also be used for power supply.

[0010] Preferably, the tool box is located in the longitudinal middle of the second storage platform, and a first support frame and a second support frame are provided at each end of the second storage platform. The crossbar is provided along the longitudinal direction of the second storage platform and is fixed to the first support frame and the second support frame. This arrangement is reasonable, and the first and second support frames are provided at both ends of the second storage platform, which can better ensure the stability of the crossbar.

[0011] Preferably, the first support frame is arranged at one end close to the lifting device, and the first support frame includes a first vertical support and first diagonal supports located on both sides of the first vertical support with respect to the second storage platform, the lower end of the first vertical support is connected to the second storage platform, and the upper end is connected to the cross bar, and the lower end of the first diagonal support is connected to the second storage platform, and the upper end is connected to the top of the first vertical support;

[0012] The second support frame includes a second vertical support and second diagonal supports located on both sides of the second vertical support relative to the second storage platform. The lower end of the second vertical support is connected to the second storage platform and the upper end is connected to the cross bar. The lower end of the second diagonal support is connected to the second storage platform and the upper end is connected to the vertical middle part of the second vertical support.

[0013] Both the first and second support frames utilize a vertical support and two diagonal supports to form a triangular support structure, providing greater support stability. The first support frame is closer to the lifting device than the second support frame. The first diagonal support of the first support frame connects to the top of the first vertical support, while the upper end of the second diagonal support of the second support frame connects to the vertical midpoint of the second vertical support. This allows the connection point farther from the lifting device to be lower, while the connection point closer to the lifting device to be higher, thereby improving stability.

[0014] Preferably, a third diagonal brace is connected between the cantilevered end of the crossbar and the second storage platform, and the lifting device is located outside the third diagonal brace. The third diagonal brace can further support the cantilevered end of the crossbar, thereby increasing the supporting force for the lifting device.

[0015] Preferably, the end of the cross bar not provided with the lifting device is detachably connected to a counterweight block, which can increase the supporting force of the lifting device and prevent the trolley from tipping over when opening or installing the cover.

[0016] Preferably, the lifting device has a winding rope, the end of the winding rope is connected to at least one transmission mechanism, the transmission mechanism includes two lifting chains and a cross lever, the center of the cross lever has a hinge shaft, the upper ends of the two lifting chains are connected to the ends of the winding rope, and the lower ends are respectively connected to one of the upper ends of the cross levers, and the two lower ends of the cross levers are respectively connected to one of the L-shaped clamping plates. By lifting the transmission mechanism, after the lifting chain is tightened, the clamping capacity of the L-shaped clamping plate on the cover plate can be increased, facilitating the clamping operation of the L-shaped clamping plate and the stability after clamping; and after lowering the cover plate, the L-shaped clamping plate can automatically loosen when the lifting chain is relaxed, making the operation more convenient and safer; and the relaxed lifting chain will not exert force on the cover plate, which can avoid damage to the cover plate.

[0017] Preferably, the lifting device is slidably connected to the cross bar via a sliding assembly, the sliding assembly can drive the lifting device to slide longitudinally along the cross bar, and the sliding assembly can be fixed to the cross bar.

[0018] The sliding assembly can be used to adjust the lifting device to different positions at the longitudinal cantilever end of the crossbar. When the moving wheels at the bottom of the trolley are fixed, the lifting position can be easily adjusted when lifting the cable trench cover in the tunnel, making the lifting position of the construction operation more accurate and the operation convenient.

[0019] Preferably, the cross bar is a circular tubular structure, and the lower side of the cross bar has a notch along its longitudinal direction. The sliding assembly includes a sliding tube, a vertical connecting block and a horizontal connecting plate. The sliding tube is placed inside the cross bar, and the sliding tube can slide adaptively along the longitudinal direction of the cross bar. The vertical connecting block passes through the notch of the cross bar to connect the sliding tube and the horizontal connecting plate, and the horizontal connecting plate is used to connect the lifting device.

[0020] The sliding assembly has good guiding effect, is easy to slide, and is convenient for adjusting the position of the lifting device on the crossbar. In addition, the support during the sliding process is stable and the operation is safe.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] The trolley for installing the cable trench cover of the present invention has a support frame that can move under the action of the bottom moving wheels, so that the trolley can be moved to a designated working position and fixed, ensuring stability during operation; the cross bar is supported on the upper part of the support frame, and one end of the cross bar is supported by the support frame to keep the other end cantilevered for balance; the support frame is extended by the cross bar to provide a vertical working space for the lifting device connected to one end of the cross bar, and at least one pair of oppositely arranged L-shaped clamps under the lifting device can clamp and support the opposite sides of the cover plate upward, maintaining upward support for the cover plate, so that the lifting device can safely lift or lower the cover plate, thereby realizing opening and installation of the cover plate. In this way, the safe operation of the lifting device can be guaranteed by the support frame, and the stable clamping and lifting of the cover plate can be guaranteed by the L-shaped clamp, so that the operation is safer, and no manual handling is required, the labor consumption is small, the operation is labor-saving, the construction efficiency is higher, and the construction progress is faster.

[0023] 2. The columns and diagonal braces can shield the other three sides except the side of the first storage platform corresponding to the lifting device, so that the cover plate can be placed in the space between the first storage platform and the second storage platform from the side of the first storage platform corresponding to the lifting device, and will not slide out from the other three sides, which is convenient for moving the cover plate and counting the number of cover plates that need to be replaced. The cover plate placed between the first storage platform and the second storage platform can also be used as a weight to improve the stability of the support frame. A tool box is provided on the second storage platform to prevent items inside the tool box from falling during the movement of the trolley, so that workers do not need to carry a construction tool bag on their shoulders. They can just put the tools in the tool box, which reduces the weight of the workers.

[0024] 3. A movable cable reel is installed in the tool box, which provides a guarantee for the power source for cover plate construction and can meet the needs of cover plate construction operations in long-distance tunnels.

[0025] 4. Setting the first support frame, the second support frame, the third diagonal support and the counterweight block can improve the supporting force of the lifting device and prevent the trolley from tipping over when opening or installing the cover.

[0026] 5. Provide a transmission mechanism between the lifting device and the L-shaped splint. After the lifting chain is tightened, the clamping ability of the L-shaped splint on the cover plate can be increased, which facilitates the clamping operation of the L-shaped splint and the stability after clamping. After the cover plate is lowered, the L-shaped splint can be automatically loosened when the lifting chain is relaxed, which makes the operation more convenient and safer. The relaxed lifting chain will not exert force on the cover plate, which can avoid damage to the cover plate.

[0027] 6. The sliding assembly can be used to adjust the lifting device to different positions at the longitudinal cantilever end of the crossbar. When the moving wheel at the bottom of the trolley is fixed, the lifting position can be easily adjusted when lifting the cable trench cover in the tunnel, making the lifting position of the construction operation more accurate and the operation convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the tunnel cable trench cover installation trolley described in Example 1;

[0029] Figure 2 1 is a schematic diagram of the bottom surface of the second storage table;

[0030] Figure 3 This is a schematic structural diagram of the tunnel cable trench cover installation trolley described in Example 2;

[0031] Figure 4 This is a schematic structural diagram of the tunnel cable trench cover installation trolley described in Example 3;

[0032] Figure 5 yes Figure 4 Schematic diagram of the cross section at AA.

[0033] Icons: 1-first storage platform; 101-first channel steel; 102-first rectangular tube; 2-second storage platform; 201-second channel steel; 202-second rectangular tube; 203-first plate; 204-second plate; 3-lifting structure; 301-winch; 302-winding rope; 303-lifting chain; 304-cross lever; 305-hinge shaft; 306-L-shaped splint; 4-column; 5-support Frame; 501-first supporting frame; 5011-third rectangular tube; 5012-third channel steel; 502-second supporting frame; 5021-fourth rectangular tube; 5022-fourth channel steel; 6-cross bar; 7-counterweight; 8-universal wheel; 9-diagonal brace; 10-third diagonal brace; 11-mobile cable drum; 12-sliding assembly; 1201-sliding tube; 1202-vertical connecting block; 1203-horizontal connecting plate. DETAILED DESCRIPTION

[0034] The present invention will be described in detail below with reference to the accompanying drawings.

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] Example 1

[0037] This embodiment provides a tunnel cable trench cover installation trolley, see Figure 1 , including a support frame, a moving wheel is provided at the bottom of the support frame, the moving wheel can drive the support frame to move horizontally, the moving wheel is equipped with a brake mechanism, the upper part of the support frame is supported by a cross bar 6, one end of the cross bar 6 is cantilevered from the outside of the support frame and is provided with a lifting device, at least one pair of oppositely arranged L-shaped clamps 306 are provided below the lifting device, each pair of L-shaped clamps 306 is used to clamp and support the opposite sides of the cover plate upwards, and the lifting device is used to raise and lower the cover plate.

[0038] The tunnel cable trench cover installation trolley described in this solution has a support frame that can move under the action of the bottom moving wheels, so that the trolley can be moved to the designated working position and fixed to ensure stability during operation; the moving wheels can be universal wheels 8, etc. The crossbar 6 is supported on the upper part of the support frame, and one end of it is supported by the support frame to maintain the balance of the cantilever operation at the other end; the crossbar 6 is cantilevered out of the support frame to provide a vertical working space for the lifting device connected to the cantilevered end of the crossbar 6, and at least a pair of oppositely arranged L-shaped clamps 306 below the lifting device can clamp and support the opposite sides of the cover upward to maintain the upward support of the cover, so that the lifting device can safely lift or lower the cover to achieve the opening and installation of the cover. This method can ensure the safe operation of the lifting device through the support frame, and can ensure the stable clamping and lifting of the cover through the L-shaped clamps 306, making the operation safer and eliminating the need for manual handling, with low labor consumption, labor-saving operation, higher construction efficiency, and faster construction progress. The L-shaped splint 306 can be set to be extended to prevent the cover plate from falling off the splint due to unstable center of gravity after lifting. The extended splint increases the contact area with the cover plate, making the supporting force more stable.

[0039] like Figure 1 and Figure 2As shown, the support frame includes a first storage platform 1 and a second storage platform 2 arranged upper and lower. Both the first storage platform 1 and the second storage platform 2 can be used for storage and can be used according to actual conditions. In this embodiment, the first storage platform 1 is a rectangular frame surrounded by four first channel steels 101. The connecting parts between the first channel steels 101 are welded and fixed. The interior of the rectangular frame is fixedly connected to a plurality of first rectangular tubes 102. The first rectangular tubes 102 are equidistantly arranged between the two longer first channel steels 101. The rectangular frame structure of the second storage platform 2 is the same as that of the first storage platform 1. Figure 2 As shown, the second storage platform 2 includes four second channel steels 201 connected in a rectangular shape and a plurality of second rectangular tubes 202 connected transversely.

[0040] like Figure 1 As shown, the first storage platform 1 is arranged below the second storage platform 2, and the first storage platform 1 and the second storage platform 2 are connected by a number of vertically arranged columns 4, and the columns 4 are arranged on both sides of the first storage platform 1 parallel to the cross bar 6, and the columns 4 are arranged at intervals along the edge of the first storage platform 1. A diagonal support rod 9 is provided on the side of the first storage platform 1 away from the lifting device, and the diagonal support rod 9 is diagonally connected between the same sides of the first storage platform 1 and the second storage platform 2, and the space between the first storage platform 1 and the second storage platform 2 can be used to place a cover. In this embodiment, the first and second storage platforms 1 and 2 are supported by a number of welded columns 4. Four columns 4 are located at the corners of the rectangular frames of the first and second storage platforms 1 and 2. Several columns 4 are welded between two pairs of long, upper and lower pairs of first and second channel steels 101 and 201 to prevent the cover from slipping out. An access port for placing the cover is located on the left side between the first and second storage platforms 1 and 2. Damaged cable trench covers can be placed onto the first storage platform 1 through this access port for easy transport, inventory, and replacement. A diagonal brace 9 is located on the right side between the first and second storage platforms 1 and 2. This shields the three sides of the first storage platform 1 except the side corresponding to the lifting device. This allows the cover to be placed from the side corresponding to the lifting device of the first storage platform 1 into the space between the first and second storage platforms 1 and 2 without slipping out from the other three sides. The cover placed between the first and second storage platforms 1 and 2 also serves as a ballast, enhancing the stability of the support frame. The diagonal bracing rods 9 can strengthen the support frame in the horizontal and vertical directions, thereby improving the integrity of the structure.

[0041] In this embodiment, a tool box is fixed above the second storage table 2. Figure 1As shown, the outer edge of the second storage platform 2 is fixedly connected to a first plate 203. The first plate 203 encloses the upper portion of the second storage platform 2 to form a shell with an open top. A second plate 204 is welded to the top surface of the second storage platform 2. The dimensions of the second plate 204 match the inner diameter of the rectangular frame structure, so that the first and second plates 203 and 204 form the tool box. A mobile cable reel 11 is fixed within the tool box. Several sockets are provided on the side walls of the mobile cable reel 11, making it convenient for storing relevant work tools. The mobile cable reel 11 can also be used to power various electrical equipment. If the lifting device is an electrical device, the mobile cable reel 11 can also be used for power supply. The tool box of the second storage platform 2 is bolted to the mobile cable reel 11, and one end of the mobile cable reel 11 is connected to a power source. Several sockets are provided on the side walls of the mobile cable reel 11, and the power cord of the lifting device is connected to the sockets for power. In low light conditions, these sockets can be connected to mobile lighting devices to provide light for construction work.

[0042] In this embodiment, the top of the second storage platform 2 is fixedly connected to a support frame 5 for lifting and bearing force, and the support frame 5 includes a first support frame 501 and a second support frame 502. Specifically, Figure 1 As shown, the tool box is arranged in the longitudinal middle part of the second storage platform 2, and the first support frame 501 and the second support frame 502 are respectively provided at both ends of the second storage platform 2. The cross bar 6 is arranged along the longitudinal direction of the second storage platform 2, and the cross bar 6 is fixed to the first support frame 501 and the second support frame 502. The arrangement is reasonable, and the first support frame 501 and the second support frame 502 are arranged at both ends of the second storage platform 2, which can better ensure the stability of the cross bar 6.

[0043] And the first support frame 501 is arranged at one end close to the lifting device, and the first support frame 501 includes a first vertical support and a first diagonal support located on both sides of the first vertical support relative to the second storage platform 2. The lower end of the first vertical support is connected to the second storage platform 2, and the upper end is connected to the cross bar 6. The lower end of the first diagonal support is connected to the second storage platform 2, and the upper end is connected to the top of the first vertical support; specifically, the first vertical support can adopt a third rectangular tube 5011, and the first diagonal support can adopt an inclined third channel steel 5012. A vertical third rectangular tube 5011 and two inclined third channel steels 5012 are assembled and welded in a triangle, and the top side walls of the two third channel steels 5012 are respectively welded to the two side walls of the top of the third rectangular tube 5011.

[0044] The second support frame 502 is arranged at one end away from the lifting device. The second support frame 502 includes a second vertical support and a second diagonal support located on both sides of the second vertical support with respect to the second storage platform 2. The lower end of the second vertical support is connected to the second storage platform 2, and the upper end is connected to the crossbar 6. The lower end of the second diagonal support is connected to the second storage platform 2, and the upper end is connected to the middle part of the second vertical support. Specifically, the second vertical support can be a fourth rectangular tube 5021, and the second diagonal support can be a fourth channel steel 5022. The second support frame 502 is assembled and welded by a vertical fourth rectangular tube 5021 and two inclined fourth channel steels 5022. The top side walls of the two fourth channel steels 5022 are respectively welded to the two side walls of the middle part of the fourth rectangular tube 5021. The top of the first support frame 501 and the second support frame 502 are fixedly welded to the crossbar 6. The crossbar 6 is a round tube or a square tube. The crossbar 6 is bolted to the lifting structure 3 near the left end. The lifting structure 3 includes a lifting device, etc. Both the first support frame 501 and the second support frame 502 utilize a vertical support and two diagonal supports to form a triangular support structure, which provides greater support stability. The first support frame 501 is closer to the lifting device than the second support frame 502. The first diagonal support of the first support frame 501 connects to the top of the first vertical support, while the upper end of the second diagonal support of the second support frame 502 connects to the middle of the second vertical support. This allows the connection point farther from the lifting device to be lower, while the connection point closer to the lifting device to be higher, thereby improving stability.

[0045] To enhance the support provided by the crossbar 6 on the lifting structure 3, a third diagonal brace 10 is connected between the cantilevered end of the crossbar 6 and the second storage platform 2. The lifting device is located outside of the third diagonal brace 10. A counterweight 7 can also be detachably connected to the end of the crossbar 6 not provided with the lifting device. Specifically, the third diagonal brace 10 is fixedly welded between the cantilevered end of the crossbar 6 and the second channel steel 201. The counterweight 7 is detachably connected to the right end of the crossbar 6.

[0046] In this embodiment, the lifting structure 3 includes a lifting device, which can be an electric hoist or a winch 301. In this embodiment, the lifting device is a winch 301. The winch 301 is bolted to the threaded hole of the crossbar 6. A winding rope 302 is provided on the winding shaft of the winch 301. The end of the winding rope 302 is connected to at least one transmission mechanism. The transmission mechanism includes two lifting chains 303 and a cross lever 304. The center of the cross lever 304 has a hinge 305. The upper ends of the two lifting chains 303 are connected to the ends of the winding rope 302, and the lower ends are respectively connected to one of the upper ends of the cross lever 304. The two lower ends of the cross lever 304 are respectively connected to one of the L-shaped splints 306. Figure 1As shown, the bottom of the winding rope 302 is connected to two lifting chains 303, the ends of which are respectively fixedly connected to cross levers 304. The two cross levers 304 are hinged by a hinge shaft 305. The ends of the cross levers 304 are fixedly connected to L-shaped clamps 306 used to clamp the cable trench cover. Through the lifting transmission mechanism, when the lifting chains 303 are tightened, the clamping capacity of the L-shaped clamps 306 on the cover is increased, facilitating the clamping operation of the L-shaped clamps 306 and ensuring stability after clamping. After the cover is lowered, the L-shaped clamps 306 can automatically loosen as the lifting chains 303 relax, making operation more convenient and safer. Moreover, the relaxed lifting chains 303 will not exert force on the cover, thus preventing damage to the cover.

[0047] During use, the trolley is pushed to the cable trench in the tunnel. The brake elements of the universal wheels 8 are activated to brake the trolley. The L-shaped clamp 306 is passed through the gap between the two cable trench covers to clamp the covers. The winch 301 is activated, and the winding rope 302 is wound upward onto the reel. Under the action of gravity, the lifting chain 303 is tightened toward the center and the cross lever 304 is tightened inward via the hinge 305, thereby increasing the clamping force of the L-shaped clamp 306 on the cover, preventing the cover from falling off. After lifting, the winding rope 302 is manually moved to place the cover to a designated position on one side. The winding rope 302 is then lowered downward, and the two cross levers 304 are manually grasped to separate the clamp from the cover. If there are damaged covers, the winding rope 302 is moved under the second storage platform 2 and the covers are placed on the first storage platform 1 for easy transportation and inventory of the number that needs to be replaced. The tool box on the second storage table 2 can be used to place protective equipment or construction tools such as protective gloves and safety helmets for ready use.

[0048] In tunnels, the removal and installation of cable trench covers often takes place while traffic is open, requiring the work to be completed in a short time to minimize the likelihood of accidents. Due to the provision of a lifting device, two L-shaped clamps 306 clamp the covers and lift them upward. A hoist 301 drives the lifting chain 303, which, under the action of gravity, tightens the cross lever 304, causing the L-shaped clamps 306 to exert a clamping force and an upward lifting force on the covers. This simple structure facilitates operation and saves time. The provision of a first storage platform 1 allows damaged covers to be stored on the first storage platform 1 when the covers are opened, facilitating their transport and inventory of replacements. The provision of a second storage platform 2, containing a tool box for construction tools and protective gear, prevents items from falling from the tool box during movement. Furthermore, workers no longer need to carry a construction tool bag; they can simply place it in the housing, reducing their burden. The provision of a mobile cable drum 11 ensures a secure power source for cover construction, meeting the requirements for cover construction operations in long-distance tunnels.

[0049] Example 2

[0050] This embodiment provides a tunnel cable trench cover installation trolley, which is different from the embodiment 1. Figure 3 The ends of the winding rope 302 are connected to two transmission mechanisms, each of which is connected to a pair of L-shaped clamps 306, which can clamp and lift the cover at multiple positions, maintain the horizontal stability of the cable trench cover during lifting, and reduce the probability of tilting during lifting.

[0051] Example 3

[0052] This embodiment provides a tunnel cable trench cover installation trolley, which is different from the embodiment 2. Figure 4-5 The lifting device is slidably connected to the crossbar 6 via a sliding assembly 12. The sliding assembly 12 can drive the lifting device to slide longitudinally along the crossbar 6, and the sliding assembly 12 can be fixed to the crossbar 6. Manually pushing and pulling the hoist 301 can cause the sliding assembly 12 to slide transversely within the sliding hole of the crossbar 6. That is, the sliding assembly 12 can be used to adjust the lifting device to different positions at the longitudinal cantilevered end of the crossbar 6. When the moving wheels at the bottom of the trolley are fixed, the lifting position can be easily adjusted when lifting the cable trench cover in the tunnel, making the lifting position more accurate and convenient to operate during construction.

[0053] In this embodiment, Figure 5 As shown, the crossbar 6 is a circular tubular structure with a notch along its longitudinal direction on its underside. The sliding assembly 12 includes a slide tube 1201, a vertical connecting block 1202, and a horizontal connecting plate 1203. The slide tube 1201 is placed inside the crossbar 6 and can slide along the longitudinal direction of the crossbar 6. The vertical connecting block 1202 passes through the notch in the crossbar 6 to connect the slide tube 1201 and the horizontal connecting plate 1203. The horizontal connecting plate 1203 is used to connect the lifting device. The use of the above-mentioned sliding assembly 12 provides good guiding effect, convenient sliding, and convenient adjustment of the position of the lifting device on the crossbar 6. The sliding process also provides stable support and safe operation.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Tunnel cable trench cover installation trolley, characterized by: The invention comprises a support frame, wherein a movable wheel is provided at the bottom of the support frame, wherein the movable wheel can drive the support frame to move horizontally, and the movable wheel is equipped with a brake mechanism, and a cross bar (6) is supported on the upper part of the support frame, wherein one end of the cross bar (6) is cantilevered outside the support frame and is provided with a lifting device, and at least one pair of oppositely arranged L-shaped clamps (306) is provided below the lifting device, and each pair of the L-shaped clamps (306) is used to clamp and support the opposite sides of the cover plate upwards, and the lifting device is used to raise and lower the cover plate; the support frame comprises a first storage platform (1) and a second storage platform (2) provided upper and lower, and an inlet and outlet for placing the cover plate is provided on the left side between the first storage platform (1) and the second storage platform (2), and the The first storage platform (1) and the second storage platform (2) are connected by a plurality of vertically arranged columns (4), the columns (4) being arranged on both sides of the first storage platform (1) parallel to the crossbar (6), the columns (4) being arranged at intervals along the edge of the first storage platform (1), a diagonal support rod (9) being provided on the side of the first storage platform (1) away from the lifting device, the diagonal support rod (9) being diagonally connected between the same side of the first storage platform (1) and the second storage platform (2), and the columns (4) and the diagonal support rod (9) being able to shield the other three sides except the side of the first storage platform (1) corresponding to the lifting device, and a cover plate can be placed between the first storage platform (1) and the second storage platform (2); A first support frame (501) and a second support frame (502) are respectively provided at both ends of the second storage platform (2); the cross bar (6) is arranged along the longitudinal direction of the second storage platform (2); and the cross bar (6) is fixed to the first support frame (501) and the second support frame (502); The first support frame (501) is arranged at one end close to the lifting device, and the first support frame (501) includes a first vertical support and a first diagonal support located on both sides of the first vertical support with respect to the second storage platform (2) in the transverse direction, the lower end of the first vertical support is connected to the second storage platform (2), and the upper end is connected to the cross bar (6), and the lower end of the first diagonal support is connected to the second storage platform (2), and the upper end is connected to the top of the first vertical support; The second support frame (502) comprises a second vertical support and second diagonal supports located on both sides of the second vertical support in the transverse direction of the second storage platform (2), wherein the lower end of the second vertical support is connected to the second storage platform (2) and the upper end is connected to the crossbar (6), and the lower end of the second diagonal support is connected to the second storage platform (2) and the upper end is connected to the vertical middle part of the second vertical support; A third diagonal brace (10) is connected between one cantilevered end of the crossbar (6) and the second storage platform (2), and the lifting device is located outside the third diagonal brace (10); The end of the crossbar (6) not provided with the lifting device is detachably connected to a counterweight block (7).

2. The tunnel cable trench cover installation trolley according to claim 1, characterized in that: A tool box is fixed above the second storage table (2), a movable cable reel (11) is fixed in the tool box, and a plurality of sockets are provided on the side wall of the movable cable reel (11).

3. The tunnel cable trench cover installation trolley according to claim 2, characterized in that: The tool box is arranged in the longitudinal middle of the second storage platform (2).

4. The tunnel cable trench cover installation trolley according to any one of claims 1 to 3, characterized in that: The lifting device has a winding rope (302), the end of the winding rope (302) is connected to at least one transmission mechanism, the transmission mechanism includes two lifting chains (303) and a cross lever (304), the center of the cross lever (304) has a hinge shaft (305), the upper ends of the two lifting chains (303) are connected to the ends of the winding rope (302), and the lower ends are respectively connected to one of the upper ends of the cross lever (304), and the two lower ends of the cross lever (304) are respectively connected to one of the L-shaped clamps (306).

5. The tunnel cable trench cover installation trolley according to any one of claims 1 to 3, characterized in that: The lifting device is slidably connected to the cross bar (6) via a sliding assembly (12); the sliding assembly (12) can drive the lifting device to slide longitudinally along the cross bar (6); and the sliding assembly (12) can be fixed to the cross bar (6).

6. The tunnel cable trench cover installation trolley according to claim 5, characterized in that: The cross bar (6) is a circular tubular structure, and the lower side of the cross bar (6) has a notch along its longitudinal direction. The sliding assembly (12) includes a sliding tube (1201), a vertical connecting block (1202) and a horizontal connecting plate (1203). The sliding tube (1201) is placed inside the cross bar (6), and the sliding tube (1201) can slide along the longitudinal direction of the cross bar (6). The vertical connecting block (1202) passes through the notch of the cross bar (6) to connect the sliding tube (1201) and the horizontal connecting plate (1203). The horizontal connecting plate (1203) is used to connect the lifting device.

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