A trackless sliding formwork device for tunnel bottom arch concrete lining

Abstract

The present invention relates to the field of tunnel processing technology, and specifically discloses a trackless slipform device for tunnel bottom arch concrete lining, which solves the problem of inconvenience in use in the prior art; it includes a trackless vehicle body, the bottom of the trackless vehicle body is provided with running wheels, the tail of the trackless vehicle body is provided with a lining forming component, and the trackless vehicle body is also provided with a concrete conveying component for providing concrete to the lining forming component, and sufficient concrete is provided by the concrete conveying component, and the lining forming component includes a first forming module. The present invention is designed in response to existing needs, and can quickly complete the adjustment of the size of the lining slipform device, without the need for workers to perform complex assembly operations, greatly improving the flexibility of processing. In addition, after the concrete lining is formed in a single time, it can be quickly demolded, and cooperated with the rapid transfer of the trackless vehicle body to achieve continuous concrete lining forming operations, further improving processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel processing, in particular to a trackless sliding formwork device for tunnel bottom arch concrete lining. Background Art

[0002] In modern tunnel construction, tunnel arch concrete lining is a critical step in ensuring tunnel structural stability and durability, placing extremely high demands on construction techniques and equipment. Slipforms, with their efficient and continuous construction capabilities, have become a common tool for tunnel arch concrete lining construction, effectively improving construction efficiency and lining quality. For example, patent publication number CN216198145U discloses a trackless slipform. However, existing slipforms have numerous limitations in practical application. First, they suffer from poor adaptability. Most traditional slipforms have fixed structural dimensions, making them incapable of timely and convenient adjustment to varying tunnel widths. This necessitates frequent replacement of adaptable equipment for diverse tunnel projects, increasing construction costs and significantly impacting construction progress. Second, existing slipforms often utilize prefabricated structures, requiring significant time and manpower for equipment assembly and commissioning prior to construction. The complex assembly process not only prolongs the construction preparation period, but also leads to accumulated errors during the assembly process, which can affect the accuracy of lining construction.

[0003] Based on this, a trackless sliding formwork device for tunnel bottom arch concrete lining is now provided, which can eliminate the disadvantages of the existing device. Summary of the Invention

[0004] The purpose of the present invention is to provide a trackless sliding formwork device for tunnel bottom arch concrete lining, which solves the problem of inconvenience in use in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A trackless sliding formwork device for concrete lining of tunnel bottom arch comprises a trackless vehicle body, a running wheel is provided at the bottom of the trackless vehicle body, a lining forming component is provided at the rear of the trackless vehicle body, a counterweight component corresponding to the lining forming component is provided at the front end of the trackless vehicle body, so that the trackless vehicle body can travel more stably, a concrete conveying component for providing concrete to the lining forming component is further provided on the trackless vehicle body, sufficient concrete is provided by the concrete conveying component, the lining forming component comprises a first forming module, telescopic ports are provided at both ends of the first forming module, a second forming plate is provided at the position of the telescopic port for sliding, a forming inner cavity is formed between the lower end of the first forming module and the two second forming plates, and the first forming The upper end of the module is connected to the first mounting base plate through a column. The first mounting base plate is provided with an expansion pushing mechanism for adjusting the distance between the second forming plate and the first forming module. The expansion pushing mechanism can adjust the forming width of the lining according to the width of the tunnel, making the equipment more flexible and practical. The first mounting base plate is connected to a lifting adjustment mechanism for driving its height adjustment. The lifting adjustment mechanism drives the height adjustment of the second forming plate and the first forming module, so that the formed concrete lining is separated and then cooperates with the trackless vehicle body to move for continuous pouring and forming operations. A second mounting base plate is provided above the first mounting base plate, and the second mounting base plate and the trackless vehicle body are connected by a fine-tuning connection component.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: the fine-tuning connecting component includes a fixing sleeve connected to the end of the second mounting base, an adjusting shaft is fixedly provided on the fixing sleeve, the lower end of the adjusting shaft is rotatably set on the rotating base, the two ends of the rotating base are connected to the lateral fine-tuning module on the trackless vehicle body through the side frame, a steering push rod is provided on the side of the lateral fine-tuning module, the output end of the steering push rod is rotatably connected to the steering side rod, the other end of the steering side rod is fixedly connected to the outer side of the adjusting shaft, the tail of the steering push rod is rotatably connected to the positioning side rod, and the other end of the positioning side rod is fixedly connected to the surface of the lateral fine-tuning module.

[0009] In an optional solution: the lateral fine-tuning module includes a lateral slide groove arranged at the upper end of the trackless vehicle body, two lateral sliders are slidably provided in the lateral slide groove, a lateral frame is fixedly provided at the upper end of each lateral slider, a connecting end connected to the side frame is provided at the upper end of the lateral frame, and a connecting end connected to the positioning side rod is also provided on the lateral frame, two lateral guide rods are horizontally arranged in the lateral slide groove, the lateral slider is slidably sleeved on the lateral guide rod, a lateral push rod is fixedly provided at the bottom of the lateral slide groove, and the output end of the lateral push rod is connected to the lateral slide.

[0010] In an optional solution: the lifting and adjusting mechanism includes four vertical guide rods symmetrically arranged on the upper end of the first mounting base plate, the vertical guide rods slide through the vertical through holes on the second mounting base plate, the upper ends of the four vertical guide rods are connected to the cross, a shock absorber is provided at the center position of the cross, the lower end of the shock absorber is connected to the output end of the lifting push rod, and the bottom of the lifting push rod is installed on the second mounting base plate.

[0011] In an optional solution: the shock absorber includes a sleeve connected to the cross, an exhaust hole is opened at the top of the sleeve, a piston block is slidably provided in the sleeve, the bottom of the piston block is connected to the output end of the lifting push rod, and the piston block and the top of the sleeve are connected through a damper. The damper can absorb the impact force between the sleeve and the piston block, reduce the impact of vibration impact on the lifting push rod, and improve the service life of the equipment.

[0012] In an optional scheme: the expansion pushing mechanism includes two groups of horizontal guide rods symmetrically arranged at the upper end of the first mounting base plate, each horizontal guide rod is slidingly provided with one, the end of which is connected and fixed to the top of the second forming plate through a hanger, and the two adjacent inner ends are connected by a grafting plate, and a drive groove is provided on the grafting plate. A drive disk is also rotatably provided at the upper end of the first mounting base plate, and two drive pins are rotatably provided at the upper end of the drive disk, and the drive pins are slidably matched with the drive groove, and the drive disk is connected to a drive unit for driving it to rotate.

[0013] In an optional solution: the drive unit includes a drive worm wheel coaxially arranged with the drive disk, one side of the drive worm wheel is engaged with the drive worm, and the drive worm is coaxially provided with a drive shaft, the end of the drive shaft is rotatably connected to the positioning frame on the first mounting base plate, and the positioning frame is also provided with a drive motor that drives the drive shaft to rotate. Under the drive of the drive motor, the drive shaft drives the drive worm to rotate, and the drive worm cooperates with the drive worm wheel to drive the drive disk to rotate.

[0014] In an optional solution: a vibration motor for vibration is provided on the first forming module.

[0015] In an optional solution: the concrete conveying component includes a concrete drum fixed to the upper end of the trackless vehicle body, a mixing module for mixing concrete is provided inside the concrete drum, feeding pumps are symmetrically provided on both sides of the concrete drum, the suction end of the feeding pump is connected to the discharge end of the concrete drum, the discharge end of the feeding pump is connected to the feeding conduit, the end of the feeding conduit is connected to the pouring fixed pipe, the side surface of the pouring fixed pipe is connected and fixed to the outer side of the lining forming component through a pouring positioning rod, and the discharge port of the pouring fixed pipe matches the feed port of the lining forming component.

[0016] In an optional solution: the counterweight component includes a counterweight installation groove arranged at the front end of the trackless vehicle body, a counterweight module is provided in the counterweight installation groove, and the counterweight module is detachably arranged in the counterweight installation groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is designed to meet existing needs and can quickly adjust the size of the lining slipform device without requiring workers to perform complex assembly operations, greatly improving processing flexibility. In addition, after the concrete lining is formed in a single step, it can be quickly demoulded and combined with the rapid transfer of the trackless vehicle body to achieve continuous concrete lining forming operations, further improving processing efficiency.

[0019] 2. The present invention combines vibration treatment during concrete pouring, so that the concrete can be quickly filled and compacted. At the same time, during the separation operation, the length of the first forming module and the second forming plate can be horizontally shortened, which not only reduces the difficulty of demoulding, but also is not easy to damage the surface quality of the concrete lining.

[0020] 3. The present invention is designed according to existing needs and can drive the concrete lining forming mold to rotate and move laterally relative to the trackless vehicle body, greatly improving the flexibility of concrete lining forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the bottom of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the lateral fine-tuning module of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the shock absorbing component of the present invention.

[0026] Figure 6 It is a schematic diagram of the upper structure of the first forming module and the second forming plate of the present invention.

[0027] Figure 7 It is a schematic structural diagram of the lower ends of the first forming module and the second forming plate of the present invention.

[0028] Figure 8 For the present invention Figure 6 A partial enlarged view of the structure.

[0029] Figure 9 This is a diagram of continuous concrete lining formation during use of the present invention.

[0030] Reference numerals: trackless vehicle body 100, running wheel 101, counterweight module 102, counterweight mounting slot 103;

[0031] Concrete drum 200, mixing module 201, feeding pump 202, feeding conduit 203, pouring fixed pipe 204, pouring positioning rod 205;

[0032] First forming module 300, first mounting base plate 301, second forming plate 302, vibration motor 303, suspension rod 304, horizontal guide rod 306;

[0033] Drive shaft 307, drive motor 308, positioning frame 309, extension guide rod 310, grafting plate 311, drive slot 312, drive pin 313, drive worm 314, drive worm wheel 315, drive disc 316;

[0034] Second mounting base plate 400, vertical guide rod 401, shock absorber 402, lifting push rod 403, adjustment shaft 404, fixing sleeve 405, rotating base 406, steering push rod 407, positioning side rod 408, steering side rod 409, cross 410;

[0035] Exhaust hole 411, sleeve 412, damper 413, piston block 414;

[0036] Transverse fine-tuning module 500 , transverse frame 501 , transverse slider 502 , transverse slide 503 , transverse push rod 504 , and transverse guide rod 505 . DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0038] like Figures 1-9As shown, an embodiment of the present invention provides a trackless sliding formwork device for concrete lining of a tunnel bottom arch, comprising a trackless vehicle body 100, wherein the bottom of the trackless vehicle body 100 is provided with a walking wheel 101, the tail of the trackless vehicle body 100 is provided with a lining forming component, and the front end of the trackless vehicle body 100 is provided with a counterweight component corresponding to the lining forming component, so that the trackless vehicle body 100 can walk more smoothly, and the trackless vehicle body 100 is also provided with a concrete conveying component for providing concrete to the lining forming component, and sufficient concrete is provided by the concrete conveying component, and the lining forming component comprises a first forming module 300, wherein both ends of the first forming module 300 are provided with a telescopic port, and a second forming plate 302 is provided at the position of the telescopic port for sliding, and a forming inner cavity is formed between the lower end of the first forming module 300 and the two second forming plates 302, and the upper end of the first forming module 300 is connected to the first mounting base plate 301 through a column, and the first mounting base plate 301 is connected to the first mounting base plate 301 through a column. The base plate 301 is provided with an expansion pushing mechanism for adjusting the distance between the second forming plate 302 and the first forming module 300. The expansion pushing mechanism can adjust the forming width of the lining according to the width of the tunnel, making the use of the equipment more flexible and practical. The first mounting base plate 301 is connected to a lifting adjustment mechanism for driving its height adjustment. The lifting adjustment mechanism drives the second forming plate 302 and the first forming module 300 to adjust their heights, so that the formed concrete lining is separated and then cooperates with the trackless car body 100 to move for continuous pouring and molding operations. A second mounting base plate 400 is provided above the first mounting base plate 301. The second mounting base plate 400 and the trackless car body 100 are connected by a fine-tuning connecting component. The fine-tuning connecting component can adjust the relative position of the first forming module 300 and the trackless car body 100, so as to further fine-tune the molding position of the concrete lining, further improving the practicality of the equipment.

[0039] like Figures 1-4As shown, the fine-tuning connection component includes a fixing sleeve 405 connected to the end of the second mounting base 400, and an adjusting shaft 404 is fixed on the fixing sleeve 405. The lower end of the adjusting shaft 404 is rotatably arranged on a rotating base 406. The two ends of the rotating base 406 are connected to the lateral fine-tuning module 500 on the trackless vehicle body 100 through the side frame. A steering push rod 407 is provided on the side of the lateral fine-tuning module 500. The output end of the steering push rod 407 is rotatably connected to the steering side rod 409, and the other end of the steering side rod 409 is connected to the adjusting shaft 404. The outer side of the joint shaft 404 is fixedly connected, the tail end of the steering push rod 407 is rotatably connected to the positioning side rod 408, and the other end of the positioning side rod 408 is fixedly connected to the surface of the lateral fine-tuning module 500. The steering push rod 407 extends and contracts to generate a driving force on the steering side rod 409, and the steering side rod 409 drives the adjustment shaft 404 to rotate, thereby providing power for the second mounting base plate 400 to turn. This method can adjust the relative angle between the trackless vehicle body 100 and the first forming module 300 to adapt to the concrete lining forming at the curved part of the tunnel;

[0040] The lateral fine-tuning module 500 includes a lateral sliding groove 503 arranged at the upper end of the trackless car body 100, two lateral sliding blocks 502 are slidably provided in the lateral sliding groove 503, and a lateral sliding frame 501 is fixed on the upper end of each lateral sliding block 502. The upper end of the lateral sliding frame 501 is provided with a connecting end connected to the side frame, and the lateral sliding frame 501 is also provided with a connecting end connected to the positioning side rod 408. Two lateral guide rods 505 are horizontally arranged in the lateral sliding groove 503, and the lateral sliding block 502 is slidably sleeved on the lateral guide rod 505. A lateral pushing rod 504 is fixed at the bottom of the lateral sliding groove 503, and the output end of the lateral pushing rod 504 is connected to the lateral sliding block 502. Under the drive of the lateral pushing rod 504, the lateral sliding block 502 can slide along the lateral guide rod 505, thereby driving the lateral sliding frame 501 and the rotating base 406 to move horizontally, further fine-tuning the concrete lining forming position;

[0041] The lifting and adjusting mechanism includes four vertical guide rods 401 symmetrically arranged on the upper end of the first mounting base plate 301. The vertical guide rods 401 slide through the vertical through-holes on the second mounting base plate 400. The upper ends of the four vertical guide rods 401 are connected to a cross 410. A shock absorber 402 is provided at the center of the cross 410. The lower end of the shock absorber 402 is connected to the output end of a lifting push rod 403. The bottom of the lifting push rod 403 is mounted on the second mounting base plate 400. The lifting push rod 403 pushes the shock absorber 402 and the second mounting base plate 400, so that the vertical guide rods 401 slide along the vertical through-holes on the second mounting base plate 400. The vertical guide rods 401 drive the first mounting base plate 301 to move up and down, providing power for the first forming module 300 and the second forming plate 302 to separate from the concrete lining.

[0042] like Figure 5 As shown, the shock absorber 402 includes a sleeve 412 connected to the cross 410, an exhaust hole 411 is opened at the top of the sleeve 412, a piston block 414 is slidably provided in the sleeve 412, the bottom of the piston block 414 is connected to the output end of the lifting push rod 403, and the piston block 414 is connected to the top of the sleeve 412 via a damper 413. The damper 413 can absorb the impact force between the sleeve 412 and the piston block 414, reduce the impact of vibration on the lifting push rod 403, and improve the service life of the equipment;

[0043] like Figure 6 As shown, the expansion pushing mechanism includes two groups of horizontal guide rods 306 symmetrically arranged at the upper end of the first mounting base plate 301, each horizontal guide rod 306 is slidably provided with a 305, the end of 305 is connected and fixed to the top of the second forming plate 302 through a suspension rod 304, and the inner ends of two adjacent 305 are connected by a grafting plate 311, and a driving groove 312 is provided on the grafting plate 311. A driving disk 316 is also rotatably provided at the upper end of the first mounting base plate 301, and two driving pins 313 are rotatably provided at the upper end of the driving disk 316. The driving pins 313 are slidably matched with the driving groove 312, and the driving disk 316 is connected to a driving unit for driving it to rotate. The driving unit drives the driving disk 316 to rotate, and the driving pins 313 on the surface of the driving disk 316 will slide along the inner wall of the driving groove 312, thereby driving the two extension guide rods 310 to slide along the horizontal guide rod 306, providing power for the extension and retraction of the second forming plate 302;

[0044] The driving unit includes a driving worm gear 315 coaxially arranged with a driving disk 316. One side of the driving worm gear 315 is meshed with a driving worm 314. The driving worm 314 is coaxially provided with a driving shaft 307. The end of the driving shaft 307 is rotatably connected to a positioning frame 309 on the first mounting base plate 301. The positioning frame 309 is further provided with a driving motor 308 for driving the driving shaft 307 to rotate. Driven by the driving motor 308, the driving shaft 307 drives the driving worm 314 to rotate. The driving worm 314 cooperates with the driving worm gear 315 to drive the driving disk 316 to rotate. In order to provide power for the rotation of the driving disk 316, the worm gear drive here has a self-locking function, which can lock the overall length of the first forming module 300 and the second forming plate 302.

[0045] The first forming module 300 is provided with a vibration motor 303 for vibration. The vibration generated by the vibration motor 303 improves the concrete filling efficiency.

[0046] like Figure 1-Figure 3As shown, the concrete conveying component includes a concrete drum 200 fixed to the upper end of the trackless vehicle body 100, and a stirring module 201 for stirring concrete is provided inside the concrete drum 200. The concrete is continuously stirred by the stirring module 201 to ensure the fluidity of the concrete, and feeding pumps 202 are symmetrically provided on both sides of the concrete drum 200. The extraction end of the feeding pump 202 is connected to the discharge end of the concrete drum 200, and the discharge end of the feeding pump 202 is connected to the feeding conduit 203. The end of the feeding conduit 203 is connected to the pouring fixed pipe 204. The side of the pouring fixed pipe 204 is connected and fixed to the outer side of the lining forming component through a pouring positioning rod 205. The discharge port of the pouring fixed pipe 204 matches the feed port of the lining forming component. Concrete is pre-stored in the concrete drum 200, and continuously mixed with the stirring module 201, and then the concrete is delivered to the pouring fixed pipe 204 by the feeding pump 202, and finally filled into the forming cavity of the lining forming component.

[0047] The counterweight component includes a counterweight installation groove 103 arranged at the front end of the trackless vehicle body 100, in which a counterweight module 102 is provided. The counterweight module 102 is detachably arranged in the counterweight installation groove 103, so that the trackless vehicle body 100 will not have the problem of being heavy at the back and light at the front.

[0048] Working principle: In actual use, the first forming module 300 and the second forming plate 302 are stopped at a predetermined position by the trackless vehicle body 100. The bottom chambers of the first forming module 300 and the second forming plate 302 and the inner wall of the tunnel constitute a concrete pouring cavity. The sliding amplitude of the second forming plate 302 is adjusted according to the actual width of the tunnel at that position. The driving unit drives the driving disc 316 to rotate, and the driving pin 313 on the surface of the driving disc 316 slides along the inner wall of the driving groove 312, thereby driving the two extension guide rods 310 to slide along the horizontal guide rod 30 6 slides to provide power for the extension and contraction of the second forming plate 302, so that the overall length of the first forming module 300 and the two second forming plates 302 will match the tunnel. After the matching is completed, the concrete conveying component works, the concrete drum 200 is used to pre-store concrete, and the mixing module 201 cooperates to continuously mix the concrete. The concrete is then sent to the pouring fixed pipe 204 by the feeding pump 202, and finally filled into the forming cavity of the lining forming component. During the pouring process, the vibration motor 303 works to ensure rapid filling and compaction of the concrete.

[0049] After a single molding operation is completed, the expansion mechanism is first operated to retract the second molding plate 302 into the first molding module 300, reducing the contact area of ​​the second molding plate 302 with the concrete, facilitating the separation of the concrete lining. This lateral movement is less likely to damage the lining structure. The shock absorber 402 and the second mounting base plate 400 are then pushed by the lifting and pushing rod 403, causing the vertical guide rod 401 to slide along the vertical through-holes on the second mounting base plate 400. The vertical guide rod 401 drives the first mounting base plate 301 to move up and down, providing power for the first molding module 300 and the second molding plate 302 to separate from the concrete lining.

[0050] Repeating the operations in sequence realizes the trackless continuous forming operation of the concrete lining, which greatly improves the processing efficiency. In addition, during the forming process, the relative position of the first forming module 300 and the trackless vehicle body 100 can be adjusted by fine-tuning the connecting components, so as to further fine-tune the forming position of the concrete lining, further improving the practicality of the equipment.

[0051] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A trackless slipform device for tunnel bottom arch concrete lining, comprising a trackless vehicle body (100), wherein a lining forming component is provided at the rear of the trackless vehicle body (100), characterized in that: The trackless vehicle body (100) is also provided with a concrete delivery component for supplying concrete to the lining forming component; The lining forming component comprises a first forming module (300), wherein both ends of the first forming module (300) are provided with telescopic ports, a second forming plate (302) is slidably provided at the position of the telescopic ports, a forming inner cavity is formed between the lower ends of the first forming module (300) and the two second forming plates (302), the upper end of the first forming module (300) is connected to the first mounting base plate (301) via a column, the first mounting base plate (301) is provided with an expansion pushing mechanism for driving the distance adjustment between the second forming plates (302) and the first forming module (300), and the first mounting base plate (301) is connected to a lifting adjustment mechanism for driving the height adjustment thereof; A second mounting substrate (400) is provided above the first mounting substrate (301); the second mounting substrate (400) and the trackless vehicle body (100) are connected via a fine-tuning connection component; The fine-tuning connection component comprises a fixing sleeve (405) connected to the end of the second mounting base (400), an adjusting shaft (404) is fixedly provided on the fixing sleeve (405), the lower end of the adjusting shaft (404) is rotatably arranged on a rotating base (406), the two ends of the rotating base (406) are connected to the lateral fine-tuning module (500) on the trackless vehicle body (100) through side frames, a steering push rod (407) is provided on the side of the lateral fine-tuning module (500), the output end of the steering push rod (407) is rotatably connected to the steering side rod (409), the other end of the steering side rod (409) is fixedly connected to the outer side of the adjusting shaft (404), the tail end of the steering push rod (407) is rotatably connected to the positioning side rod (408), and the other end of the positioning side rod (408) is fixedly connected to the surface of the lateral fine-tuning module (500); The expansion pushing mechanism includes two groups of horizontal guide rods (306) symmetrically arranged on the upper end of the first mounting base plate (301), each horizontal guide rod (306) is slidably provided with a (305), the end of the (305) is fixedly connected to the top of the second forming plate (302) through a suspension rod (304), and the inner ends of two adjacent (305) are connected by a grafting plate (311), and a driving groove (312) is provided on the grafting plate (311). A driving disk (316) is also rotatably provided on the upper end of the first mounting base plate (301), and two driving pins (313) are rotatably provided on the upper end of the driving disk (316), and the driving pins (313) are slidably matched with the driving groove (312), and the driving disk (316) is connected to a driving unit for driving its rotation; The first forming module (300) is provided with a vibration motor (303) for vibration.

2. The trackless sliding formwork device for tunnel bottom arch concrete lining according to claim 1 is characterized in that: The transverse fine-tuning module (500) comprises a transverse sliding groove (503) arranged at the upper end of the trackless vehicle body (100), two transverse sliding blocks (502) are slidably arranged in the transverse sliding groove (503), a transverse frame (501) is fixedly provided at the upper end of each transverse sliding block (502), a connecting end connected to a side frame is provided at the upper end of the transverse frame (501), and a connecting end connected to a positioning side rod (408) is further provided on the transverse frame (501), two transverse guide rods (505) are transversely arranged in the transverse sliding groove (503), the transverse sliding block (502) is slidably sleeved on the transverse guide rod (505), a transverse push rod (504) is fixedly provided at the bottom of the transverse sliding groove (503), and the output end of the transverse push rod (504) is connected to the transverse sliding block (502).

3. The trackless sliding formwork device for tunnel bottom arch concrete lining according to claim 1 is characterized in that: The lifting and adjusting mechanism comprises four vertical guide rods (401) symmetrically arranged on the upper end of the first mounting substrate (301), the vertical guide rods (401) slidingly passing through the vertical through holes on the second mounting substrate (400), the upper ends of the four vertical guide rods (401) being connected to a cross (410), a shock absorbing member (402) being provided at the center of the cross (410), the lower end of the shock absorbing member (402) being connected to the output end of a lifting push rod (403), the bottom of which is mounted on the second mounting substrate (400).

4. The trackless sliding formwork device for tunnel bottom arch concrete lining according to claim 3 is characterized in that: The shock absorbing member (402) includes a sleeve (412) connected to the cross (410), an exhaust hole (411) is provided at the top of the sleeve (412), a piston block (414) is slidably provided in the sleeve (412), the bottom of the piston block (414) is connected to the output end of the lifting push rod (403), and the piston block (414) and the top of the sleeve (412) are connected via a damper (413).

5. The trackless sliding formwork device for tunnel bottom arch concrete lining according to claim 1 is characterized in that: The driving unit includes a driving worm wheel (315) coaxially arranged with the driving disk (316), one side of the driving worm wheel (315) is meshed with a driving worm (314), and a driving shaft (307) is coaxially provided with the driving worm (314), and the end of the driving shaft (307) is rotatably connected to a positioning frame (309) on the first mounting base plate (301), and the positioning frame (309) is also provided with a driving motor (308) for driving the driving shaft (307) to rotate.

6. The trackless sliding formwork device for tunnel bottom arch concrete lining according to claim 1, characterized in that: The concrete conveying component comprises a concrete drum (200) fixed to the upper end of the trackless vehicle body (100), a mixing module (201) for mixing concrete is provided inside the concrete drum (200), feeding pumps (202) are symmetrically provided on both sides of the concrete drum (200), the pumping end of the feeding pump (202) is communicated with the discharge end of the concrete drum (200), the discharge end of the feeding pump (202) is communicated with a feeding conduit (203), the end of the feeding conduit (203) is communicated with a pouring fixed pipe (204), the side of the pouring fixed pipe (204) is connected and fixed to the outer side of the lining forming component through a pouring positioning rod (205), and the discharge port of the pouring fixed pipe (204) matches the feed port of the lining forming component.

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