Ground expansion joint structure for passage of unmanned AGV heavy-load vehicle

Abstract

The utility model discloses a ground expansion joint structure for an unmanned AGV heavy load vehicle to pass through, which comprises a water stop belt, a steel slide bar assembly, an L-shaped force bearing angle steel base, a force bearing leveling steel cushion block and a force bearing thick steel cover plate, the L-shaped force bearing angle steel base is positioned above a constructed reinforced concrete base layer, the inner end of the L-shaped force bearing angle steel base forms a connecting end, and the outer end of the L-shaped force bearing angle steel base is connected with the force bearing leveling steel cushion block. The two ends of the steel sliding rod assembly are welded to the connecting ends on the two sides, the water stop belt and the L-shaped force-bearing angle steel base are integrally fixed through the base anchoring part anchored into the constructed reinforced concrete base, and the L-shaped force-bearing angle steel base, the outer side of the water stop belt and the base anchoring part are wrapped with the post-pouring concrete surface layer. The force-bearing leveling steel cushion block and the L-shaped force-bearing angle steel base abut against and are welded, the force-bearing thick steel cover plate is arranged on the force-bearing leveling steel cushion block in a falling mode, and the force-bearing thick steel cover plate is connected with the steel sliding rod assembly through the cover plate anchoring part. The device is applied to the ground expansion joint in the industrial factory building floor, and stable passing of the unmanned intelligent robot vehicle is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building ground structure, especially a ground expansion joint structure. BACKGROUND

[0002] Daqu is a kind of wine yeast, after the fine treatment of cleaning and crushing workshop, according to scientific proportioning and mixing and humidifying and kneading, then pressing into the shape of brick-shaped qu block, let the various microorganisms in nature grow on it. Therefore, the Daqu production building of the distillery often needs to collect various types of workshops, integrates production workshop, stacking workshop, aging workshop, broken qu room and qu culture room, and fully covers the core process links of brewing from grain pretreatment to qu block crushing. The transportation task of qu block production process includes the transportation of process raw materials before production, accurate transportation of mature qu block to qu culture room for professional culture, neat stacking of mature qu block in stacking area, then transfer to aging workshop for at least half a year of after-ripening treatment, after-ripening qu block is finely crushed by artificial forklift and finally loaded into the car and sent to the wine blending workshop. The qu block production process needs the load trolley to pass through different workshops many times.

[0003] With the continuous development of industrial intelligence and automation, unmanned AGV (Automated Guided Vehicle) heavy load vehicle has high load capacity of 5t, high transportation efficiency, and is convenient for scientific management, and gradually plays an important role in the task of transporting qu block. But the unmanned AGV heavy load vehicle has very strict requirements for the driving surface during driving, the maximum ground inclination should not exceed 0.22 degrees, the ground step height should not exceed 5mm, the gap at the expansion joint should be less than 10mm, the vehicle should not have obvious changes when passing through the deformation joint device, and the device settlement should be ≤1mm.

[0004] The ordinary expansion joint device installed in the ground on the market generally uses 4mm thick aluminum alloy framework and covers 4mm thick aluminum alloy cover plate, the cover plate protrudes on both sides of the ground or is inclined, often exceeding the maximum ground inclination and ground step height. At the same time, the aluminum alloy framework itself has a cavity, which makes it not transmit force between the ground structure, mainly considers the deformation effect, and the load capacity is only 0.2t. When applied to the driving ground of unmanned AGV heavy load vehicle, the expansion joint device will produce obvious stress deformation. At the same time, the design idea of ground load type expansion joint device on the market is to make the aluminum alloy framework into a flat plate and directly fixed on the ground structure layer, then cover the cover plate on the framework, reduce the height of the aluminum alloy framework to make the weight directly transmitted to the ground structure layer, but the flatness and firmness of the ground structure layer and the aluminum alloy framework flat plate installation in the device cannot be guaranteed, and the flatness of the cover plate cannot be guaranteed.

[0005] The existing ground expansion joint device cannot meet the requirements of the stable passing of the unmanned AGV vehicle with a load of 5t. Utility model content

[0006] The utility model aims at providing a ground expansion joint structure for the passing of the unmanned AGV heavy load vehicle, and solves the technical problem that the existing ordinary aluminum alloy expansion joint device cannot meet the requirements of the stable passing of the unmanned AGV vehicle with a load of 5t.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A ground expansion joint structure for the passing of the unmanned AGV heavy load vehicle, comprising a ground structure for the passing of the unmanned AGV heavy load vehicle, a ground expansion joint is arranged on the ground structure, a load-bearing expansion joint structure is arranged in the ground expansion joint, and the load-bearing expansion joint structure comprises, from bottom to top, a water stop, a steel slide rod assembly, an L-shaped load-bearing angle steel base, a load-bearing leveling steel pad and a load-bearing thick steel cover plate,

[0009] The ground structure comprises a lower side constructed reinforced concrete base and an upper side post-poured concrete surface layer,

[0010] The L-shaped load-bearing angle steel base is symmetrically provided with two L-shaped load-bearing angle steel bases, which are respectively arranged above the constructed reinforced concrete base on both sides of the ground expansion joint, the inner end of the L-shaped load-bearing angle steel base is horizontally extended into the upper side of the ground expansion joint to form a connecting end, the steel slide rod assembly is arranged above the constructed reinforced concrete base and between the two L-shaped load-bearing angle steel bases, the length of the steel slide rod assembly is adapted to the width of the ground expansion joint, the top surface of the two ends of the steel slide rod assembly is welded with the bottom surface of the two side connecting ends, the water stop and the L-shaped load-bearing angle steel base are integrally fixed by the base anchoring piece which is vertically anchored into the constructed reinforced concrete base, the L-shaped load-bearing angle steel base and the water stop form the side formwork of the post-poured concrete surface layer at the position of the ground expansion joint, and the post-poured concrete surface layer covers the outer side of the L-shaped load-bearing angle steel base, the water stop and the base anchoring piece,

[0011] The load-bearing leveling steel pad is symmetrically provided with two load-bearing leveling steel pads which are respectively tightly arranged and welded with the L-shaped load-bearing angle steel base on the corresponding side, the two ends of the load-bearing thick steel cover plate are respectively arranged on the top surface of the two load-bearing leveling steel pads, meanwhile, the end surface of the two ends of the load-bearing thick steel cover plate and the L-shaped load-bearing angle steel base on the two sides leave a deformation narrow gap with a width of not more than 6mm, the deformation narrow gap and the load-bearing leveling steel pad form a caulking groove, the caulking groove is filled with sealing glue, the load-bearing thick steel cover plate and the steel slide rod assembly are connected through the cover plate anchoring piece, and the top surface of the L-shaped load-bearing angle steel base and the load-bearing thick steel cover plate is flush with the top surface of the post-poured concrete surface layer.

[0012] The L-shaped bearing angle steel base is longitudinally arranged along the joint, including a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate is pressed against the horizontal section, the connecting end is extended from the inner end of the bottom plate into the ground expansion joint, the top surface of the side plate is flush with the top surface of the post-cast concrete surface layer, the thickness of the bearing leveling steel pad and the thickness of the bearing thick steel cover plate are equal to the inner side height of the side plate.

[0013] The water stop belt is longitudinally arranged along the joint, including a horizontal section above the constructed reinforced concrete base, a vertical section in the ground expansion joint, and a suspended section,

[0014] The horizontal section is laid along the bottom surface of the two side bottom plates and is fixed integrally with the bottom plate through the base anchor,

[0015] The vertical section extends from the horizontal section into the ground expansion joint, the inner top of the vertical section is bonded to the end surface of the steel slide rod assembly, and the outer bottom of the vertical section is bonded to the side wall surface of the constructed reinforced concrete base in the expansion joint,

[0016] The suspended section is the middle part of the water stop belt, suspended in the ground expansion joint.

[0017] The base anchor is a countersunk head expansion bolt arranged along the joint and spaced apart, two rows are staggered on each side, one row on each side is located below the corresponding side bearing leveling steel pad, and the top surface of the base anchor is flush with the top surface of the corresponding side bottom plate.

[0018] The bearing leveling steel pad is a rectangular steel block arranged along the joint and spaced apart, the bottom is pressed on the top surface of the bottom plate and welded, the outer end surface is tightly pressed against the inner surface of the side plate and welded, and the inner end surface is shorter than the connecting end and flush with the inner wall surface of the ground expansion joint.

[0019] The bearing thick steel cover plate is longitudinally arranged along the joint, with a thickness of at least 12mm, and the surface is sprayed with a gray fluorocarbon wear-resistant layer.

[0020] The filling groove is formed by the outer end surface of the bearing thick steel cover plate, the inner surface of the side plate, and the top surface of the bearing leveling steel pad.

[0021] The steel slide rod assembly is a full steel part arranged along the joint and spaced apart, including an arc-shaped sliding groove, a slide rod plate, and a limiting sleeve, the arc-shaped sliding groove is symmetrically arranged left and right with the opening facing the inner side, the top end surface is welded with the connecting end, and the outer end surface is tightly pressed against the water stop belt, both ends of the slide rod plate are fixedly connected with slide rod balls, the slide rod balls slide back and forth along the corresponding side arc-shaped sliding groove, the central part of the slide rod plate is provided with a limiting hole, and the bottom surface of the limiting sleeve is fixedly connected to the top surface of the slide rod plate at the position corresponding to the limiting hole.

[0022] The cover plate anchor is arranged between the middle part of the cover plate and the middle part of the steel slide rod assembly, the cover plate anchor is a countersunk stainless steel bolt, the top surface of the cover plate anchor is flush with the top surface of the post-cast concrete surface layer, and the bottom part sequentially penetrates the cover plate, the limiting sleeve and the limiting hole and is fastened by the nut anchored on the bottom surface of the slide rod plate.

[0023] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0024] The utility model discloses a ground expansion joint position post-cast concrete surface layer side formwork is formed by L type bearing angle steel base and water stop band, and the post-cast concrete surface layer is filled below the suspension of L type bearing angle steel, so that the L type bearing angle steel, water stop band and expansion bolt are closely connected with the concrete surface layer, and the firmness and force transmission between the two are guaranteed.

[0025] The utility model discloses a bearing leveling steel pad welded on the L type bearing angle steel base, realizes the adjustment of the flatness of the base surface, then the thick bearing steel cover plate is covered on the bearing leveling steel pad, and the flatness requirement of the driving road surface is satisfied.

[0026] The utility model can be applied to the setting of the ground expansion joint device in the floor of industrial plant, satisfies the requirement of the expansion deformation of the building, can ensure that the heavy vehicle can pass through, along with the continuous development of the industrial intelligence and automation degree, can also guarantee that the unmanned intelligent robot vehicle passes through stably. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further explained in detail in connection with the drawings.

[0028] Figure 1 It is the side view structure schematic diagram of the utility model.

[0029] Figure 2 It is Figure 1 The ground expansion joint position partial close -up view of the utility model.

[0030] Figure 3 It isFigure 1 Another side view of the structure.

[0031] Figure 4 yes Figure 1 A top-view structural diagram.

[0032] Figure 5 yes Figure 4 The relative positions of the load-bearing leveling steel pads and anchors under the medium-load-bearing thick steel cover plate.

[0033] Attached reference numerals: 1 - Ground structure, 11 - Constructed reinforced concrete base layer, 12 - Post-poured concrete surface layer, 2 - Ground expansion joint, 3 - Connection end, 4 - Waterstop, 41 - Horizontal section, 42 - Vertical section, 43 - Suspended section, 5 - Steel sliding rod assembly, 51 - Arc-shaped sliding groove, 52 - Sliding rod plate, 53 - Limiting sleeve, 54 - Sliding rod ball, 6 - L-shaped load-bearing angle steel base, 61 - Base plate, 62 - Side plate, 7 - Load-bearing leveling steel pad, 8 - Load-bearing thick steel cover plate, 9 - Base anchor, 10 - Deformation narrow joint, 13 - Unmanned AGV heavy-duty vehicle, 14 - Sealant, 15 - Cover plate anchor. Detailed Implementation

[0034] See the examples. Figures 1-5 As shown, a ground expansion joint structure for unmanned AGV heavy-duty vehicles includes a ground structure 1 for unmanned AGV heavy-duty vehicles 13 to pass through. The ground structure 1 is provided with a ground expansion joint 2. The ground expansion joint 2 is provided with a load-bearing expansion joint structure, which includes, from bottom to top, a waterstop 4, a steel sliding rod assembly 5, an L-shaped load-bearing angle steel base 6, a load-bearing leveling steel pad 7, and a load-bearing thick steel cover plate 8.

[0035] The ground structure 1 includes a pre-constructed reinforced concrete base layer 11 on the lower side and a post-cast concrete surface layer 12 on the upper side.

[0036] Two L-shaped load-bearing angle steel bases 6 are symmetrically arranged on the left and right, respectively located above the pre-constructed reinforced concrete base layer 11 on both sides of the ground expansion joint 2. The inner end of the L-shaped load-bearing angle steel base 6 extends horizontally into the upper part of the ground expansion joint 2 to form a connecting end 3. The steel sliding rod assembly 5 is located above the pre-constructed reinforced concrete base layer 11, between the two L-shaped load-bearing angle steel bases 6. The length of the steel sliding rod assembly 5 is adapted to the width of the ground expansion joint 2. The top surfaces of both ends of the steel sliding rod assembly 5 are welded to the bottom surfaces of the connecting ends 3 on both sides. The waterstop 4 is integrally fixed to the L-shaped load-bearing angle steel base 6 by the base anchor 9 vertically anchored into the pre-constructed reinforced concrete base layer 11. The L-shaped load-bearing angle steel base 6 and the waterstop 4 form the side formwork of the post-cast concrete surface layer 12 at the location of the ground expansion joint 2. The post-cast concrete surface layer 12 covers the outer side of the L-shaped load-bearing angle steel base 6 and the waterstop 4 as well as the base anchor 9.

[0037] In the embodiment, the L-shaped force-bearing angle steel base 6 is longitudinally arranged along the joint, including a bottom plate 61 and a side plate 62 perpendicular to the bottom plate 61, the bottom plate 61 is tightly pressed against the horizontal section 41, the connecting end 3 is formed by extending the inner end of the bottom plate 61 into the ground expansion joint 2, and the top surface of the side plate 62 is flush with the top surface of the post-cast concrete surface layer 12. The thickness of the force-bearing leveling steel pad 7 and the thickness of the force-bearing thick steel cover plate 8 are equal to the inner height of the side plate 62. In the embodiment, the size of the L-shaped force-bearing angle steel base 6 is 60mm×20mm×3mm, wherein the length of the bottom plate is 60mm, the length of the side plate 62 is 20mm, and the thickness of the plate body is 3mm.

[0038] In the embodiment, the water stop belt 4 is longitudinally arranged along the joint, including a horizontal section 41 located above the previously constructed reinforced concrete base 11, a vertical section 42 located in the ground expansion joint 2, and a suspended section 43.

[0039] The horizontal section 41 is laid along the bottom surface of the two side bottom plates 61 and is fixed integrally with the bottom plates 61 through the base anchor 9; the vertical section 42 extends from the horizontal section 41 into the ground expansion joint 2; the inner top of the vertical section 42 is bonded to the end surface of the steel slide rod assembly 5, and the outer bottom of the vertical section 42 is bonded to the surface of the side wall of the previously constructed reinforced concrete base 11 in the expansion joint; the suspended section 43 is the middle part of the water stop belt 4, which is suspended in the ground expansion joint 2.

[0040] In the embodiment, the base anchor 9 is an M8 countersunk head expansion bolt arranged in the joint, and two rows are staggered on each side with a spacing of 300mm, one row on each side is located below the corresponding force-bearing leveling steel pad 7, and the top surface of the base anchor 9 is flush with the top surface of the corresponding side bottom plate 61.

[0041] In the embodiment, the steel slide rod assembly 5 is a full steel piece and is arranged in the joint with a spacing of 500mm, including an arc-shaped sliding groove 51, a slide rod plate 52, and a limiting sleeve 53, the arc-shaped sliding groove 51 is symmetrically arranged left and right with the opening facing the inner side, the top end surface is welded to the connecting end 3, and the outer end surface is tightly pressed against the water stop belt 4, two ends of the slide rod plate 52 are respectively fixedly connected with slide rod balls 54, the slide rod balls 54 slide back and forth along the corresponding arc-shaped sliding groove 51, the center of the slide rod plate 52 is provided with a limiting hole, and the bottom surface of the limiting sleeve 53 is fixedly connected to the top surface center of the slide rod plate 52 at a position corresponding to the limiting hole.

[0042] Two force leveling steel pads 7 are symmetrically arranged on the left and right of the force bearing thick steel cover plate 8, and are respectively tightly arranged on the top surface of the two force leveling steel pads 7, and the end faces of the two ends of the force bearing thick steel cover plate 8 and the L-shaped force bearing angle steel base 6 on the two sides leave a deformation gap 10 with a width of not more than 6mm, and the deformation gap and the force leveling steel pad 7 form a gap filling groove, the gap filling groove is filled with sealing glue 14, the force bearing thick steel cover plate 8 and the steel slide rod assembly 5 are connected through the cover plate anchor 15, and the top surfaces of the L-shaped force bearing angle steel base 6 and the force bearing thick steel cover plate 8 are flush with the top surface of the post-cast concrete surface layer 12.

[0043] In the embodiment, the force leveling steel pad 7 is a rectangular steel block arranged in a gap direction, the interval is 300mm, the thickness is 6mm-8mm, the bottom is pressed on the top surface of the bottom plate 61 and welded, the outer end surface is tightly arranged on the inner side surface of the side plate 62 and welded, and the inner end surface is shorter than the connecting end 3 and flush with the inner wall surface of the ground expansion joint 2.

[0044] In the embodiment, the force bearing thick steel cover plate 8 is longitudinally arranged, and the thickness is at least 12mm, and in the embodiment, the thickness is 12mm, the cover plate width is 270mm, and the surface is sprayed with a gray fluorocarbon wear-resistant layer to prevent the steel plate from rusting due to long-term work wear.

[0045] In the embodiment, the gap filling groove is formed by the outer end surface of the force bearing thick steel cover plate 8, the inner side surface of the side plate 62 and the top surface of the force leveling steel pad 7.

[0046] In the embodiment, the cover plate anchor 15 is arranged between the middle part of the force bearing thick steel cover plate 8 in the gap direction and the middle part of the steel slide rod assembly 5, the cover plate anchor 15 is an M6 countersunk stainless steel bolt, the interval is 500mm, the top surface of the cover plate anchor 15 is flush with the top surface of the post-cast concrete surface layer 12, and the bottom part sequentially passes through the force bearing thick steel cover plate 8, the limiting sleeve 53 and the limiting hole and is fastened by the nut 55 anchored on the bottom surface of the slide rod plate 52.

[0047] The construction process of the utility model is as follows:

[0048] Step one, according to the width of the ground expansion joint 2 and the thickness of the post-cast concrete surface layer 12, the size of the water stop belt 4, the steel slide rod assembly 5, the L-shaped force bearing angle steel base 6, the force leveling steel pad 7 and the force bearing thick steel cover plate 8 is designed.

[0049] Step two, complete the construction of the first reinforced concrete base 11;

[0050] Step three, integrally weld the L-shaped force bearing angle steel base 6 on the two sides with the steel slide rod assembly 5, and bond the water stop belt 4 with the L-shaped force bearing angle steel base 6 and the steel slide rod assembly 5;

[0051] Step four, then the step three assembled L type force angle steel base 6 and water stop 4 through the base anchor 9 anchor in the first construction of reinforced concrete base 11, L type force angle steel base 6 and water stop 4 at this time relative to the first construction of reinforced concrete base 11 suspended;

[0052] Step five, water stop 4 and the first construction of reinforced concrete base 11 bonding, form ground expansion joint position post-poured concrete surface layer side formwork;

[0053] Step six, pouring post-poured concrete surface layer 12, L type force angle steel base 6 below and side meticulous vibration compaction, ensure the stability of the base connection;

[0054] Step seven, according to the difference in height at this time in L type force angle steel base 6 and post-poured concrete surface layer 12 select appropriate force leveling steel pad 7 leveling and welding,

[0055] Step eight, finally, the force thick steel cover plate 8 and steel slide rod assembly 5 through the cover plate anchor 15 installed in place.

[0056] The local ground deformation joint device smoothly lets the unmanned intelligent robot vehicle pass smoothly, and meets the deformation expansion requirement, and has strong practicability.

Claims

1. A ground expansion joint structure for the passage of an unmanned AGV heavy load vehicle, comprising a ground structure (1) for the passage of an unmanned AGV heavy load vehicle (13), a ground expansion joint (2) being provided on the ground structure (1), characterized in that: The ground expansion joint (2) is provided with a load bearing expansion joint structure, which comprises, from bottom to top, a water stop belt (4), a steel slide rod assembly (5), an L-shaped load bearing angle steel base (6), a load bearing leveling steel pad (7), and a load bearing thick steel cover plate (8), The ground structure (1) comprises a lower side constructed reinforced concrete base (11) and an upper side post-poured concrete surface layer (12), The L-shaped load bearing angle steel base (6) is symmetrically provided with two L-shaped load bearing angle steel bases (6) above the constructed reinforced concrete base (11) on both sides of the ground expansion joint (2), the inner end of the L-shaped load bearing angle steel base (6) is horizontally extended into the ground expansion joint (2) to form a connecting end (3), the steel slide rod assembly (5) is located above the constructed reinforced concrete base (11) and between the two L-shaped load bearing angle steel bases (6), the length of the steel slide rod assembly (5) is adapted to the width of the ground expansion joint (2), the top surface of the two ends of the steel slide rod assembly (5) is welded to the bottom surface of the two connecting ends (3), the water stop belt (4) is integrally fixed with the L-shaped load bearing angle steel base (6) through the base anchoring member (9) which is anchored into the constructed reinforced concrete base (11) in a vertical manner, the L-shaped load bearing angle steel base (6) and the water stop belt (4) form the side formwork of the post-poured concrete surface layer (12) at the position of the ground expansion joint (2), and the post-poured concrete surface layer (12) covers the outer side of the L-shaped load bearing angle steel base (6) and the water stop belt (4) and the base anchoring member (9), The load bearing leveling steel pad (7) is symmetrically provided with two load bearing leveling steel pads (7) which are tightly arranged on the top of the L-shaped load bearing angle steel base (6) on the corresponding side and are welded, the two ends of the load bearing thick steel cover plate (8) are respectively arranged on the top surface of the load bearing leveling steel pad (7) on the corresponding side, and the end surface of the two ends of the load bearing thick steel cover plate (8) and the L-shaped load bearing angle steel base (6) on the corresponding side are provided with a deformation narrow gap (10) with a width of not more than 6 mm, the deformation narrow gap and the load bearing leveling steel pad (7) form a caulking groove, the caulking groove is filled with sealant (14), the load bearing thick steel cover plate (8) and the steel slide rod assembly (5) are connected through the cover plate anchoring member (15), and the top surface of the L-shaped load bearing angle steel base (6) and the load bearing thick steel cover plate (8) is flush with the top surface of the post-poured concrete surface layer (12).

2. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 1, characterized in that: The L-shaped load bearing angle steel base (6) is longitudinally arranged along the joint, comprises a bottom plate (61) and a side plate (62) which is perpendicular to the bottom plate (61), the bottom plate (61) is tightly arranged on the horizontal section (41), the connecting end (3) is formed by the inner end of the bottom plate (61) which is extended into the ground expansion joint (2), the top surface of the side plate (62) is flush with the top surface of the post-poured concrete surface layer (12), and the thickness of the load bearing leveling steel pad (7) and the thickness of the load bearing thick steel cover plate (8) are equal to the inner side height of the side plate (62).

3. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 2, characterized in that: The water stop belt (4) is longitudinally arranged along the joint, comprises a horizontal section (41) which is arranged above the constructed reinforced concrete base (11), a vertical section (42) which is arranged in the ground expansion joint (2), and a hanging section (43), The horizontal section (41) is arranged along the bottom surface of the bottom plate (61) and is integrally fixed with the bottom plate (61) through the base anchoring member (9), The vertical section (42) extends from the horizontal section (41) into the ground expansion joint (2), the top inner side of the vertical section (42) is bonded with the end face of the steel slide bar assembly (5), the bottom outer side of the vertical section (42) is bonded with the side wall surface of the reinforced concrete base layer (11) in the expansion joint, The overhanging section (43) is the middle part of the water stop belt (4) and hangs in the ground expansion joint (2).

4. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 2, characterized in that: The base anchor (9) is a countersunk expansion bolt arranged in the longitudinal direction of the expansion joint, two rows of the base anchor (9) are staggered arranged on each side, and one row of the base anchor (9) on each side is arranged below the force-bearing leveling steel pad (7). The top surface of the base anchor (9) is flush with the top surface of the corresponding bottom plate (61).

5. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 2, characterized in that: The force-bearing leveling steel pad (7) is a rectangular steel block arranged in the longitudinal direction of the expansion joint, the bottom of the force-bearing leveling steel pad (7) is pressed on the top surface of the bottom plate (61) and welded, the outer end surface of the force-bearing leveling steel pad (7) abuts against the inner side surface of the side plate (62) and is welded, and the inner end surface of the force-bearing leveling steel pad (7) is shorter than the connecting end (3) and flush with the inner wall surface of the ground expansion joint (2).

6. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 2, characterized in that: The force-bearing thick steel cover plate (8) is arranged in the longitudinal direction of the expansion joint, and the thickness of the force-bearing thick steel cover plate (8) is at least 12 mm. The surface of the force-bearing thick steel cover plate (8) is sprayed with a gray fluorocarbon wear-resistant layer.

7. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 2 or 6, characterized in that: The filling groove is formed by the outer end surface of the force-bearing thick steel cover plate (8), the inner side surface of the side plate (62), and the top surface of the force-bearing leveling steel pad (7).

8. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 1 or 2, characterized in that: The steel slide bar assembly (5) is a full steel part arranged in the longitudinal direction of the expansion joint, and includes an arc-shaped sliding groove (51), a slide bar plate (52), and a limiting sleeve (53). The arc-shaped sliding groove (51) is symmetrically arranged on the left and right sides and has an opening facing the inner side. The top end surface of the arc-shaped sliding groove (51) is welded with the connecting end (3), and the outer end surface of the arc-shaped sliding groove (51) abuts against the water stop belt (4). The two ends of the slide bar plate (52) are respectively fixedly connected with slide bar balls (54). The slide bar balls (54) slide back and forth along the arc-shaped sliding groove (51) on the corresponding side. The central part of the slide bar plate (52) is provided with a limiting hole. The bottom surface of the limiting sleeve (53) is fixedly connected with the top surface of the slide bar plate (52) at a position corresponding to the limiting hole.

9. The ground expansion joint structure for the unmanned AGV heavy load vehicle passing according to claim 8, characterized in that: The cover plate anchor (15) is arranged between the middle part of the force-bearing thick steel cover plate (8) and the middle part of the steel slide bar assembly (5) in the longitudinal direction of the expansion joint. The cover plate anchor (15) is a countersunk stainless steel bolt. The top surface of the cover plate anchor (15) is flush with the top surface of the post-cast concrete surface layer (12). The bottom of the cover plate anchor (15) passes through the force-bearing thick steel cover plate (8), the limiting sleeve (53), and the limiting hole in sequence and is fastened by the nut (55) anchored on the bottom surface of the slide bar plate (52).

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