A full-face steel bar binding trolley suitable for long and large open excavation cast-in-place structure

Abstract

The utility model relates to tunnel construction technical field, concretely refers to a full section steel bar binding trolley suitable for long and large open cut cast in situ structure, include: trolley main body, set up on trolley main body be used for supporting ring longitudinal steel support ring of steel form, be used for controlling ring longitudinal steel support ring opening and closing and realize the formwork of formwork and closing of moulding and moulding formwork adjusting structure, be used for driving trolley main body and move along the construction direction walking drive structure, install in the both sides of trolley main body and can laterally extend and contract telescopic platform, the utility model discloses through ring longitudinal steel support ring, walking drive structure and telescopic platform's design, solved trolley movement, preset steel bar spacing, and the problem of inconvenient steel bar transportation of binding steel bar walking, realized steel bar full section fast high accuracy binding, improved construction efficiency, guarantee engineering quality.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a full-section steel reinforcement binding trolley suitable for long open-cut cast-in-place structures. Background Technology

[0002] As a common underground engineering construction method, cut-and-cover construction requires rebar tying as a crucial step in the main structure's construction. Traditionally, rebar tying is primarily done using scaffolding, but scaffolding erection carries high safety risks and lacks storage space for rebar. Rebar tying relies heavily on manual transport, resulting in high labor intensity for workers. Mobile rebar trolleys can solve the problem of repeatedly erecting and dismantling scaffolding, and the rebar can be stored on the trolley. However, traditional rebar trolleys require rotating tracks, and manual calipering is necessary during rebar tying, making construction cumbersome and compromising quality. Some rebar trolleys use sizing plates to position longitudinal rebar, improving positioning accuracy, but the accuracy of circumferential rebar still relies on manual calipers. Furthermore, tying rebar at the arch has the following problems: low efficiency (due to the inconvenience of walking on the arch and the rebar being stacked at the top, rebar transport is slow and the transport distance is long); increased labor requirements (2-3 additional people are needed on-site as rebar transfer intermediaries to achieve the tying goal); and certain safety hazards (workers stand on non-flat platforms, posing a risk of fall).

[0003] Patent No. CN222557685U discloses a rebar tying platform for open-cut tunnel lining construction, which uses slots to position longitudinal and circumferential rebars, solving the problem of moving and positioning the rebar tying platform in open-cut tunnels. However, it does not consider the problem of workers' inconvenience when tying rebars at the arch, as well as the problem of rebar transportation. Utility Model Content

[0004] The purpose of this utility model is to provide a full-section rebar tying trolley suitable for long open-cut cast-in-place structures. It solves the problems of traditional rebar trolleys, such as repeated erection and dismantling of supports, the need for manual calipers to measure rebar spacing, inconvenience in walking while tying rebars, and rebar transportation. It enables rapid and high-precision tying of the entire rebar section, improves construction efficiency, and ensures project quality.

[0005] To achieve this objective, the present invention provides a full-section rebar tying trolley suitable for long open-cut cast-in-place structures, comprising: Main body of the trolley; The longitudinal steel reinforcement support ring is a support structure installed on the trolley body to support the steel reinforcement formwork; A template adjustment structure is used to control the opening and closing of the longitudinal steel reinforcement support ring to achieve the formwork support and closing. A walking drive structure is used to drive the trolley body to move along the construction direction; The telescopic platform is an adjustable platform that can be extended and retracted laterally, installed on both sides of the trolley body.

[0006] Furthermore, the circumferential longitudinal steel reinforcement support ring includes multiple longitudinal steel reinforcement support rings spaced apart along the tunnel axis and multiple circumferential steel reinforcement support rings spaced apart along the tunnel circumference; the circumferential steel reinforcement support rings fix the multiple longitudinal steel reinforcement support rings together as a whole along the axial direction.

[0007] Furthermore, both the longitudinal and circumferential reinforcing bar support rings are provided with spaced comb-tooth grooves; the comb-tooth grooves are grooves provided on the outside of the longitudinal and circumferential reinforcing bar support rings for supporting the reinforcing bars.

[0008] Furthermore, the longitudinal steel reinforcement support ring includes a top support ring and two lateral support rings placed on the top support ring. The top support ring is fixed to the trolley body, and the lateral support rings are hinged to the top support ring.

[0009] Furthermore, the opening direction of the comb tooth groove of the lateral support ring is opposite to the direction of the lateral support ring retraction when the trolley is demolded.

[0010] Furthermore, the travel drive structure includes a track clamping and moving structure for clamping the track and moving the track to the construction position, and a travel structure for driving the trolley body to move on the track.

[0011] Furthermore, the track clamping and moving structure includes: A clamping structure is connected to the lower part of the trolley body for clamping the track; A driving structure, which is connected to the clamping structure and in contact with the track surface, is used to drive the track to move by friction.

[0012] Furthermore, the traveling structure includes drive rollers placed on both sides of the trolley body to drive the trolley body to move along the track.

[0013] Furthermore, the template adjustment structure consists of a lifting structure installed at the lower end of the trolley body for driving the trolley body to move vertically, and a lateral telescopic structure installed on both sides of the trolley body for driving the trolley body to extend and retract laterally.

[0014] Furthermore, the telescopic platform is a plate-like structure with one end slidably connected to the main body of the trolley via a first roller and the other end extending horizontally.

[0015] Furthermore, the top support ring is equipped with a prefabricated arch binding platform, and the inner sides of both ends of the prefabricated arch binding platform are equipped with wedge-shaped columns. The wedge-shaped columns cooperate with the wedge-shaped grooves on the steel platform on the top of the trolley body, so that the prefabricated arch binding platform can be detachably installed on the trolley body.

[0016] Furthermore, it also includes a walking posture detection system, which includes: Multiple laser sensors are respectively installed on multiple rail feeders and are on the same horizontal line. The laser sensors are used to obtain the distance from each laser sensor to the ground to detect whether the trolley body is balanced.

[0017] Furthermore, it also includes a cantilever crane mechanism, which is mounted on the trolley body and includes: A cantilever crane, comprising a column and a boom, wherein the bottom of the column is fixed to the trolley body and the top of the column is connected to the boom via a rotatable flange; A mobile trolley is slidably mounted on the lower end of the boom for transporting steel bars.

[0018] The beneficial effects of this utility model are as follows: 1. This utility model utilizes a ring-and-longitudinal reinforcing bar support ring as a support formwork for the circumferential and longitudinal reinforcing bars. The formwork adjustment structure controls the erection and closure of the reinforcing bar formwork. The walking drive structure facilitates the movement of the trolley body to the required construction location, avoiding the redundant work of repeatedly erecting and dismantling the support due to changing construction locations. The telescopic platform allows construction personnel to lay reinforcing bars and pour concrete on the outside of the trolley body, and the required reinforcing bars can be placed on the telescopic platform, eliminating the need for manual transportation of reinforcing bars.

[0019] 2. Setting longitudinal and circumferential reinforcing bar support rings and pre-setting the spacing between longitudinal and transverse reinforcing bars can facilitate the even laying of reinforcing bar formwork.

[0020] 3. Comb-tooth grooves are set on the longitudinal and circumferential reinforcing bar support rings to facilitate the insertion of the reinforcing bar formwork into the support rings. The spacing between the comb-tooth grooves is preset to improve the work efficiency of construction personnel.

[0021] 4. The longitudinal steel reinforcement support ring is divided into three parts: a top support ring and two side support rings. This facilitates the adjustment of the formwork structure. When the main body of the control trolley is raised and lowered and laterally extended and retracted, the side support rings can rotate at the hinge point of the hinge structure with the top support ring, thereby realizing the trolley's formwork support or closing.

[0022] 5. The comb-tooth groove on the lateral support ring is designed with the groove opening direction opposite to the direction of the lateral support ring retraction when the trolley is demolded. This can prevent the groove from hitting the reinforcing bar when the trolley is demolded, allowing the lateral support ring to detach smoothly from the reinforcing bar.

[0023] 6. The walking drive structure incorporates a track clamping and moving structure as well as a traveling structure, enabling it to perform both track clamping and moving actions on the track, achieving a closed-loop construction process of self-laying and self-moving: after the clamping mechanism precisely lays the track to the forward work position, the traveling mechanism immediately drives the trolley to move along the new track. This structure eliminates reliance on external hoisting equipment and solves the problem of track laying in the narrow space of tunnels; simultaneously, it forms a continuous "track laying-traveling" operation cycle, eliminating the downtime of traditional trolleys waiting for track installation and improving construction efficiency.

[0024] 7. This track clamping and moving structure can clamp and suspend the track by setting a clamping structure to ensure no slippage during transportation. The drive structure under the track can be activated when the track is suspended, driving the track to move and support the construction position of the track transportation. The drive structure is integrated under the track, saving equipment space. It is especially suitable for low tunnel conditions and realizes rapid and safe positioning and laying of the track in narrow spaces.

[0025] 8. Drive rollers are installed on both sides of the trolley body to drive the trolley body to move on the track. This facilitates the laying and pouring of formwork at the construction location after the trolley is transported to the construction location by the trolley. This avoids repeated adjustments and is suitable for complex foundation environments in tunnels, providing a stable and reliable mobile foundation for lining construction.

[0026] 9. The lifting structure can control the entire vehicle to rise and fall vertically, and the lateral telescopic structure can control lateral telescopic movement, allowing the side support rings to rotate along the hinge point, thus achieving the purpose of horizontal formwork support and formwork closure.

[0027] 10. A telescopic platform is installed so that it can slide out from the inside of the trolley, providing operating space for workers. When the trolley needs to move after completing the rebar binding, the platform is retracted into the trolley, which solves the problem of the traditional external platform being set on the side of the trolley, affecting the overall movement of the trolley. Attached Figure Description

[0028] Figure 1 This is a front view of the full-section rebar tying trolley in an embodiment of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle; Figure 3 For the present utility model Figure 1 Enlarged view at point B in the middle; Figure 4 For the present utility model Figure 1 Enlarged view at point C; Figure 5 For the present utility model Figure 1 Enlarged view at point D; Figure 6 This is a side view of the full-section rebar tying trolley in an embodiment of this utility model; Figure 7 For the present utility model Figure 6 Enlarged view at point E in the middle; Figure 8 This is a front view of the full-section rebar tying trolley without the prefabricated arch tying platform in an embodiment of this utility model; Figure 9 This is a schematic diagram of the longitudinal steel bar support ring structure in an embodiment of this utility model; Figure 10 This is a schematic diagram of the lateral comb tooth groove structure of the lateral support ring in an embodiment of this utility model; Wherein: 1—Trolley body; 101—Steel platform; 2—Longitudinal reinforcing bar support ring; 201—Top support ring; 202—Side support ring; 203—Hinge point; 3—Prefabricated arch binding platform; 301—Wedge-shaped column; 302—Pin; 4—Transverse telescopic structure; 5—Lifting structure; 6—Cantilever crane; 601—Boom; 602—Column; 603—Flange; 7—Rail; 8—Telescopic platform; 9—Wedge groove; 10—Reinforcing bar; 11—Drive roller; 12—Support seat; 13—Rail feeder; 1301—Drive shaft; 1302—First pulley; 14—First roller; 15—Cantilever crane; 15—Mobile trolley; 16—Longitudinal reinforcing bar support ring; 17—Circumferential reinforcing bar support ring; 18—Comb tooth groove. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: like Figures 1-10 As shown, a full-section rebar tying trolley suitable for long open-cut cast-in-place structures includes: 1. Main body of the trolley; The longitudinal steel bar support ring 2 is a support structure installed on the trolley body 1 to support the steel bar 10 template; A template adjustment structure is used to control the opening and closing of the longitudinal steel reinforcement support ring 2 to realize the formwork support and closing; A walking drive structure is used to drive the trolley body 1 to move along the construction direction; Telescopic platform 8, which is an adjustable platform that can be extended and retracted laterally and installed on both sides of the trolley body 1.

[0030] In use, this utility model utilizes a walking drive structure to transport the trolley to the construction location, and a template adjustment structure for formwork support. Construction workers lay the steel reinforcement 10 template on the longitudinal steel reinforcement support ring 2. The telescopic platform 8 can then be extended, allowing construction workers to stand on it and lay the steel reinforcement 10. This utility model achieves overall trolley movement through a walking drive structure, replacing the multiple erection and dismantling of traditional supports and reducing the risks of high-altitude operations. The telescopic platform 8 provides expandable working space, allowing the steel reinforcement 10 to be directly stacked on the trolley, reducing manual transport distance and labor intensity. The longitudinal steel reinforcement support ring 2 enables control over the spacing of the circumferential steel reinforcement, solving the problem of insufficient precision caused by traditional manual calipers.

[0031] In one embodiment, the circumferential longitudinal steel reinforcement support ring 2 includes multiple longitudinal steel reinforcement support rings 16 spaced apart along the tunnel axial direction and multiple circumferential steel reinforcement support rings 17 spaced apart along the tunnel circumference; the circumferential steel reinforcement support rings 17 fix the multiple longitudinal steel reinforcement support rings 16 together as a whole along the axial direction.

[0032] Setting longitudinal steel bar support rings 16 and circumferential steel bar support rings 17 can facilitate the even laying of steel bar 10 formwork.

[0033] In one embodiment, both the longitudinal reinforcing bar support ring 16 and the circumferential reinforcing bar support ring 17 are provided with spaced comb-tooth grooves 18; the comb-tooth grooves 18 are grooves provided on the outside of the longitudinal reinforcing bar support ring 16 and the circumferential reinforcing bar support ring 17 for supporting the reinforcing bars 10.

[0034] Preferably, the comb tooth groove 18 has a U-shaped opening.

[0035] The longitudinal reinforcing bar support ring 16 and the circumferential reinforcing bar support ring 17 are set to facilitate the insertion of the reinforcing bar 10 template into the longitudinal reinforcing bar support ring 16 and the circumferential reinforcing bar support ring 17. The comb tooth groove 18 is preset with an installation interval, which can improve the work efficiency of construction personnel.

[0036] In one embodiment, the longitudinal reinforcing bar support ring 16 includes a top support ring 201 and two lateral support rings 202 disposed on the top support ring 201. The top support ring 201 is fixed to the trolley body 1, and the lateral support rings 202 are hinged to the top support ring 201. When the top support ring 201 and the two lateral support rings 202 are set up, and the trolley is controlled by the template adjustment structure for formwork support or demolding, the lateral support rings 202 can rotate along the hinge point 203 with the top support ring 201, which facilitates trolley formwork support or demolding.

[0037] Preferably, the top support ring 201 is provided with a prefabricated arch binding platform 3, and the inner sides of both ends of the prefabricated arch binding platform 3 are provided with wedge-shaped columns 301. The wedge-shaped columns 301 cooperate with the wedge-shaped grooves 9 on the steel platform 101 at the top of the trolley body 1, so that the prefabricated arch binding platform 3 can be detachably installed on the trolley body 1.

[0038] Preferably, the wedge-shaped post 301 is inserted into the wedge-shaped groove 9, and can be further fixed by using a pin 302 passing through the wedge-shaped post 301 and the wedge-shaped groove 9.

[0039] The prefabricated arch tying platform 3 is detachably installed on the trolley body 1 using a pin mechanism. When construction workers lay the lateral reinforcement bars, the prefabricated arch tying platform 3 can be disassembled, making it convenient for them to lay the lateral reinforcement bars on the steel platform 101. This also provides a reinforcement bar storage area on the trolley when tying the side wall reinforcement bars, facilitating worker construction. When tying the arch reinforcement bars, the prefabricated arch tying platform 3 can be quickly assembled onto the reinforcement trolley, providing a working platform for tying the arch reinforcement bars.

[0040] In one embodiment, the slot opening direction of the comb groove 18 of the lateral support ring 202 is opposite to the direction in which the lateral support ring 202 retracts when the trolley is demolded.

[0041] The comb-tooth groove 18 of the lateral support ring 202 is a lateral comb-tooth groove. The opening direction of the lateral comb-tooth groove is opposite to the direction of retraction of the lateral support ring 202 when the trolley is demolded. This is used to allow the lateral support ring 202 to smoothly detach from the reinforcing bar 10 when the template adjustment structure retracts and the lateral support ring 202 rotates downward around the hinge point 203 between the lateral support ring 202 and the top support ring 201 during trolley demolding.

[0042] Preferably, such as Figure 10 As shown, the comb tooth profile on the lateral support ring 202 is designed in the form of a first straight segment - a curved segment - a second straight segment. The first straight segment is denoted as L1, and the length of L1 is d / 2. The curved segment is denoted as L2, and the radius of L2 is d+2mm. The second straight segment is denoted as L3, and the length of L3 is d. l2 is the line connecting the hinge point 203 to the center b of the reinforcing bar. l1 is the perpendicular line drawn from the hinge point 203 to the line connecting the center b of the reinforcing bar and the center of the support ring. The distance between the foot of the perpendicular and the center b of the reinforcing bar is α = arccos(l1 / l2).

[0043] This embodiment solves the problem of rebar jamming during rebar trolley demolding through the coordinated design of open comb-tooth grooves and a three-section contour. For example... Figure 10As shown, L represents the curve of the lateral support ring 202, b is the center point of the rebar, and the opening direction of the slot is opposite to the retraction direction of the lateral support ring 202. This ensures that when the lateral support ring 202 retracts during demolding, the lateral comb-tooth slot naturally tilts upwards, and the rebar automatically slides off under gravity. Simultaneously, a three-segment comb profile is used: the first straight segment L1, with a length of d / 2, ensures accurate positioning of the rebar during the binding period; the curved segment L2, with a radius of d+2mm, provides a demolding guide channel and reserves a safety gap; and the second straight segment L3, with a length of d, extends the guide path to prevent springback. Furthermore, the angle optimization formula a = arccos(l1 / l2) dynamically matches the movement trajectory of the hinge point 203 with the rebar's posture, ensuring that the slot opening always faces the release path and avoids mechanical interference.

[0044] In one embodiment, the walking drive structure includes a track clamping and moving structure for clamping the track 7 and moving the track 7 to the construction position, and a walking structure for driving the trolley body 1 to move on the track 7.

[0045] When the traveling drive structure drives the trolley body 1 to move along the construction direction, it first uses the track clamping moving structure to clamp the track 7 and transport the track 7 to the construction position. After the track 7 reaches the designated position, the traveling structure is started to move on the track 7, thereby driving the trolley body 1 to move on the track 7.

[0046] In one embodiment, the track clamping and moving structure includes: A clamping structure is connected to the lower part of the trolley body 1 for clamping the track 7; A driving structure, which is connected to the clamping structure and in contact with the surface of the track 7, is used to drive the track 7 to move by friction.

[0047] The track 7 is clamped and transported to the construction position using a track clamping and moving structure. The clamping structure clamps the track 7 and suspends it in the air. Then, the drive structure is activated, which can move the track 7 relative to the trolley body 1, thereby transporting the track 7 to the construction position. After being transported to the designated construction position, the track 7 can be placed on the ground, and then the walking structure is used to move the trolley body 1 on the track 7.

[0048] Preferably, the track clamping and moving structure includes: The rail feeder 13 is connected to the trolley body 1 at its upper end and has a drive shaft 1301 arranged horizontally below the track 7 at its lower end. The drive shaft 1301 is provided with a first pulley 1302 that can slide along the extension direction of the track 7. The drive shaft 1301 is connected to the first pulley 1302 in a transmission connection.

[0049] Multiple support seats 12 are evenly distributed at the lower end of the trolley body 1. The trolley body 1 is used as a support structure to provide vertical support force to the trolley body 1 after the lifting structure drives the trolley body 1 to descend until the support seat 12 contacts the ground.

[0050] In the above components, the clamping structure includes a rail feeder 13, a drive shaft 1301 below the rail feeder 13, a first pulley 1302, and a support base 12 for supporting the trolley and suspending the rail 7 after the rail feeder 13 clamps the rail 7; the driving structure includes a drive shaft 1301 and a first pulley 1302, which is used to drive the pulley to rotate when the rail 7 is suspended, and to drive the rail 7 to move in the opposite direction of the movement of the first pulley 1302 by utilizing the friction between the first pulley 1302 and the rail 7.

[0051] When multiple support seats 12 support the main body 1 of the trolley, the track 7 is clamped by the first pulley 1302 on the lower drive shaft 1301 of the rail feeder 13, becoming suspended from the ground. The first pulley 1302 is then driven, and the friction between the first pulley 1302 and the track 7 is used to move the track 7 in the opposite direction of the sliding direction of the first pulley 1302 until it reaches the construction position. The trolley is then lowered using the lifting structure 5, at which point the track 7 is placed on the ground, and the support seats 12 are suspended. At this point, the rail feeder and the support seats together constitute the rail clamping structure and the driving structure.

[0052] Preferably, the full-section rebar tying trolley of this utility model further includes a walking posture detection system, which includes: Multiple laser sensors are respectively installed on multiple rail feeders 13 and are on the same horizontal line. The laser sensors are used to obtain the distance from each laser sensor to the ground to detect whether the trolley body 1 is balanced.

[0053] Preferably, the template adjustment structure can receive the displacement value of the laser sensor during the trolley's movement and automatically adjust the lifting structure 5, avoiding the problem of traditional trolley single-point operation of opening and closing the mold not being in place on the first attempt and requiring multiple operations, thus reducing workload.

[0054] In one embodiment, the walking structure includes drive rollers 11 disposed on both sides of the trolley body 1 for driving the trolley body 1 to move along the track 7.

[0055] Drive rollers 11 are installed below the main body 1 of the trolley. Once the position of the track 7 is determined, the rollers can move on the track 7, thereby moving the main body 1 of the trolley and making it easier for construction personnel to move the entire trolley to the position where the template is laid.

[0056] Preferably, the drive roller is fixed to the lower end of the trolley body 1 and the drive roller is placed on the track 7. The drive roller is used to drive the trolley body 1 to roll along the extension direction of the track 7. The drive roller 11 is slidably connected to the bottom of the trolley body 1 in the vertical direction.

[0057] The drive roller is set to slide vertically to the bottom of the trolley body 1. When the template adjustment structure is raised or lowered vertically, the drive roller does not descend with the trolley body 1 and can always remain above the track 7, thus avoiding compression of the track 7.

[0058] In one embodiment, the template adjustment structure is a lifting structure 5 installed at the lower end of the trolley body 1 for driving the trolley body 1 to move vertically, and a lateral telescopic structure 4 installed on both sides of the trolley body for driving the trolley body 1 to extend and retract laterally.

[0059] The template adjustment structure is set up to support and close the overall trolley. The lifting structure 5 controls the overall trolley to rise and fall vertically, and the horizontal telescopic structure 4 can control the horizontal telescopic movement. The hinge point 203 of the top support ring 201 is connected to the side support rings 202 on both sides of the trolley. It can rotate outward or inward along the hinge point 203 between the side support rings 202 and the top support ring 201 to achieve the purpose of horizontal support and demolding.

[0060] In one embodiment, the telescopic platform 8 is a plate-like structure with one end slidably connected to the trolley body 1 via a first roller 14 and the other end extending horizontally.

[0061] A telescopic platform 8 is installed, which can slide out laterally from inside the trolley to provide operating space for workers. When the trolley needs to move after completing the rebar tying, the platform is retracted into the trolley. This avoids the problem of the traditional external platform being located on the side of the trolley, which affects the overall movement of the trolley.

[0062] Preferably, the cantilever crane mechanism includes: The cantilever crane 6 includes a column 602 and a boom 601. The bottom of the column 602 is fixed to the trolley body 1, and the top of the column 602 is connected to the boom 601 through a rotatable flange 603. A mobile trolley 15 is slidably mounted on the lower end of the boom 601 for transporting steel bars 10.

[0063] The system is equipped with a movable trolley and a rotatable flange 603, which can cover the entire trolley area with lifting points. The cantilever crane 6 lifts the steel bars 10 from the steel bar 10 stacking area on the trolley to the binding area, avoiding manual transportation of the steel bars.

[0064] Before use, the lateral telescopic structure 4 and the lifting structure 5 are in a retracted state, the trolley is in a mold-closed state, the first pulley 1302 is placed below the track 7 via the drive shaft 1301, the lifting structure 5 starts to rise, and the rail feeder 13 clamps the track 7 at both ends of the track 7 and rises. When the lifting structure 5 rises to a certain height, the support seat 12 contacts the ground, and the lifting structure 5 continues to rise until the rail feeder 13 clamps the track 7 and suspends it in the air. At this time, the support seat 12 provides support for the trolley, the drive shaft 1301 is started, and the drive shaft 1301 drives the first pulley 1302 to roll. Through the friction between the first pulley 1302 and the track 7, the track 7 moves in the opposite direction to the rolling of the first pulley 1302. During the above-mentioned movement of the track 7, a laser sensor can be used to detect whether the main body of the trolley is balanced. After reaching the construction position, the lifting structure 5 descends until the support seat 12 is suspended in the air, the track 7 contacts the ground, and the track 7 provides support for the trolley. The trolley is transported to the formwork laying position by the drive rollers 11 above the track 7. Upon reaching the position, the lateral telescopic structure 4 and lifting structure 5 open, and the lateral support rings 202 at both ends of the top support ring 201 rotate along the hinge point 203 to perform trolley formwork support. Construction workers lay the reinforcing bars 10 along the comb-tooth grooves 18 of the longitudinal reinforcing bar support ring 2. When laying the lateral reinforcing bars 10, the prefabricated arch binding platform 3 can be removed, allowing workers to walk on the top steel platform 101. When installing the arch reinforcing bars 10, the prefabricated arch binding platform 3 is installed on the trolley body 1. The telescopic platform 8 can also be extended, allowing construction workers to walk and work on it. When the trolley needs to change construction or laying positions, the telescopic platform 8 is retracted for easy trolley movement. When formwork demolding is required, the lateral telescopic structure 4 and lifting structure 5 retract, and the trolley closes the formwork. During use, this utility model can utilize a cantilever crane mechanism to transport the reinforcing bars 10 to various positions on the trolley, facilitating construction work for workers.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A full-section rebar tying trolley suitable for long open-cut cast-in-place structures, characterized in that, include: Main body of the trolley (1); The longitudinal steel bar support ring (2) is a support structure set on the trolley body (1) to support the steel bar (10) template; Template adjustment structure, the template adjustment structure is used to control the opening and closing of the longitudinal steel bar support ring (2) to realize the formwork support and closing; A walking drive structure is used to drive the trolley body (1) to move along the construction direction; Telescopic platform (8), the telescopic platform (8) is an adjustable platform that can be extended and retracted laterally on both sides of the trolley body (1).

2. The full-section rebar tying trolley applicable to long open-cut cast-in-place structures according to claim 1, characterized in that, The circumferential longitudinal steel reinforcement support ring (2) includes multiple longitudinal steel reinforcement support rings (16) arranged at intervals along the tunnel axis and multiple circumferential steel reinforcement support rings (17) arranged at intervals along the tunnel circumference; the circumferential steel reinforcement support rings (17) fix the multiple longitudinal steel reinforcement support rings (16) together as a whole along the axial direction.

3. The full-section rebar tying trolley suitable for long open-cut cast-in-place structures according to claim 2, characterized in that, Both the longitudinal reinforcing bar support ring (16) and the circumferential reinforcing bar support ring (17) are provided with spaced comb-tooth grooves (18); the comb-tooth grooves (18) are grooves provided on the outside of the longitudinal reinforcing bar support ring (16) and the circumferential reinforcing bar support ring (17) for supporting the reinforcing bars (10).

4. The full-section rebar tying trolley suitable for long open-cut cast-in-place structures according to claim 3, characterized in that, The longitudinal steel bar support ring (16) includes a top support ring (201) and two side support rings (202) placed on the top support ring (201). The top support ring (201) is fixed on the trolley body (1), and the side support rings (202) are hinged to the top support ring (201).

5. The full-section rebar tying trolley suitable for long open-cut cast-in-place structures according to claim 4, characterized in that, The opening direction of the comb groove (18) of the lateral support ring (202) is opposite to the direction of the retraction of the lateral support ring (202) when the trolley is demolded.

6. The full-section rebar tying trolley applicable to long open-cut cast-in-place structures according to claim 1, characterized in that, The walking drive structure includes a track clamping and moving structure for clamping the track (7) and moving the track (7) to the construction position, and a walking structure for driving the trolley body (1) to move on the track (7).

7. The full-section rebar tying trolley applicable to long open-cut cast-in-place structures according to claim 6, characterized in that, The track clamping and moving structure includes: A clamping structure is connected to the lower part of the trolley body (1) for clamping the track (7). A driving structure is connected to the clamping structure and is a driving structure that contacts the lower surface of the track (7) for driving the track (7) to move by friction.

8. The full-section rebar tying trolley applicable to long open-cut cast-in-place structures according to claim 7, characterized in that, The walking structure includes drive rollers (11) placed on both sides of the trolley body (1) for driving the trolley body (1) to move along the track (7).

9. The full-section rebar tying trolley applicable to long open-cut cast-in-place structures according to claim 1, characterized in that, The template adjustment structure consists of a lifting structure (5) installed at the lower end of the trolley body (1) to drive the trolley body (1) to move vertically, and a lateral extension structure (4) installed on both sides of the trolley body to drive the trolley body (1) to extend and retract laterally.

10. The full-section rebar tying trolley applicable to long open-cut cast-in-place structures according to claim 1, characterized in that, The telescopic platform (8) is a plate-shaped structure with one end slidably connected to the trolley body (1) via the first roller (14) and the other end extending horizontally.

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