Transverse moving device for erecting small prefabricated box girder of double-layer bridge with narrow top and wide bottom

Abstract

The utility model provides a transverse moving device for erecting small prefabricated box girders of a double-layer bridge with narrow top and wide bottom, which comprises a transverse moving device, the transverse moving device comprises a plurality of bottom supports, the tops of the bottom supports are provided with transverse moving rails, and the tops of the transverse moving rails are provided with three-way pushing mechanisms used for installing the small prefabricated box girders on the sides of the lower layer; the three-direction pushing mechanism comprises two vertical and longitudinal adjusting mechanisms and a transverse pushing mechanism, the two vertical and longitudinal adjusting mechanisms and the transverse pushing mechanism are arranged at the top of the transverse moving rail in a sliding mode, a connecting cross beam is arranged between the two vertical and longitudinal adjusting mechanisms, and a plurality of transversely-arranged locking holes are formed in the transverse moving rail. The telescopic end of the transverse pushing mechanism is connected with one of the vertical and longitudinal adjusting mechanisms, and the other end of the transverse pushing mechanism is provided with a locking bolt which can be connected with any locking hole in an inserted mode. The device can be arranged on the side edge of a lower bridge cover beam, and through cooperation of the transverse pushing mechanism and the vertical and longitudinal adjusting mechanism, installation of the outer side prefabricated small box girder of a lower bridge ultra-wide area is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering field especially is related to a kind of upper narrow lower wide double-deck bridge prefabricated small box girder erecting horizontal displacement device. BACKGROUND

[0002] Traditional double-deck prefabricated small box girder erecting mainly has two methods: (1) upper and lower layer asynchronous erecting method, that is, erecting lower layer prefabricated small box girder after lower layer column bent cap construction, then constructing upper layer column and bent cap, finally erecting upper layer prefabricated small box girder;(2) upper and lower layer synchronous erecting method, that is, first constructing upper and lower layer column and bent cap, then erecting lower layer prefabricated small box girder and upper layer prefabricated small box girder. Since the net distance of upper bent cap is greater than the length of prefabricated small box girder, it is necessary to erect lower layer prefabricated small box girder by high-low hoist.

[0003] However, in the construction process, lower layer asynchronous erecting method needs to wait for lower layer box girder erection before constructing upper layer column bent cap and box girder, and the construction efficiency is low, if upper and lower layers are constructed in a water flow, at least two sets of bridge erecting machines and related equipment need to be invested, which is large investment and high construction cost. And upper and lower layer synchronous erecting method is only suitable for upper and lower equal-width or upper wide lower narrow double-deck prefabricated small box girder erecting, so an upper narrow lower wide double-deck prefabricated small box girder erecting device and method are proposed to solve the above problems. SUMMARY

[0004] The main purpose of the utility model is to provide an upper narrow lower wide double-deck prefabricated small box girder erecting horizontal displacement device, to solve the problem of double-deck synchronous erecting of upper narrow lower wide double-deck prefabricated small box girder.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: an upper narrow lower wide double-deck prefabricated small box girder erecting horizontal displacement device, which comprises a horizontal displacement device, the horizontal displacement device comprises a plurality of bottom supports, the top of the bottom support is provided with a horizontal displacement track, the top of the horizontal displacement track is provided with a three-way jacking mechanism for installing lower layer side prefabricated small box girder;

[0006] The three-way jacking mechanism comprises two vertical and longitudinal two-way adjusting mechanisms and a horizontal jacking mechanism, which are slidably arranged at the top of the horizontal displacement track, a connecting beam is arranged between the two vertical and longitudinal two-way adjusting mechanisms, wherein a plurality of locking holes are arranged in the horizontal displacement track, the telescopic end of the horizontal jacking mechanism is connected with one of the vertical and longitudinal two-way adjusting mechanisms, and the other end is provided with a locking pin which can be inserted into any locking hole.

[0007] In the preferred scheme, the horizontal displacement track is composed of two I-beams, and the top of the connection part of the two I-beams is provided with a plurality of locking holes.

[0008] In the preferred solution, the transverse pushing mechanism comprises a transverse pushing oil cylinder, the telescopic end of the transverse pushing oil cylinder is connected with one of the vertical and longitudinal adjusting mechanisms, the bottom of the transverse pushing oil cylinder is provided with a plurality of sliding seats in sliding contact with the transverse moving track, the two ends of each sliding seat are connected with a first L-shaped limiting block buckled with the edge of the I-shaped steel, and the tail end of the transverse pushing oil cylinder is further provided with a supporting seat, and a locking bolt is arranged on the supporting seat, the end of the locking bolt can freely penetrate through the supporting seat and be inserted into any locking hole.

[0009] In the preferred solution, the locking bolt is a telescopic cylinder.

[0010] In the preferred solution, the vertical and longitudinal adjusting mechanism comprises a box body in sliding contact with the transverse moving track at the bottom, the two opposite edges of the bottom of the box body are provided with second L-shaped limiting blocks buckled with the edges of the I-shaped steel, the two opposite side walls of the box body in the longitudinal direction are provided with deviation correction holes, the bottoms of the two side walls are provided with longitudinal limiting grooves, the inner bottom wall of the box body is in sliding contact with a longitudinal sliding seat, the two edges of the longitudinal sliding seat are provided with limiting steps in sliding cooperation with the longitudinal limiting grooves, the top of the longitudinal sliding seat is provided with a vertical jacking oil cylinder, the two opposite side walls of the box body in the longitudinal direction are provided with longitudinal deviation correction oil cylinders, the telescopic ends of the longitudinal deviation correction oil cylinders penetrate through the deviation correction holes and are connected with the vertical jacking oil cylinder through a deviation correction connecting seat.

[0011] In the preferred solution, the number of the transverse moving devices is two, and the opposite sides of the connecting beams of the two transverse moving devices are respectively provided with matched laser emitters and receiving targets, which are used for positioning the relative position relationship between the two transverse moving devices.

[0012] The utility model provides a kind of upper narrow lower wide double-layer bridge prefabricated small box girder erecting transverse moving device, it can be set on the side of lower bridge bent cap, and it is installed to the outer prefabricated small box girder of lower bridge super-wide area by the cooperation between transverse pushing mechanism and vertical and longitudinal adjusting mechanism, to solve the problem that transverse movable bridge erecting machine cannot hoist the prefabricated small box girder of super-wide area outer side, successfully solve the technical problem of the synchronous erection of upper narrow lower wide double-layer prefabricated small box girder. ACCURACY OF DRAWINGS

[0013] The utility model is further described below in connection with drawings and examples:

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 It is the transverse moving device structure diagram of the utility model;

[0016] Figure 3 It is the transverse moving track structure diagram of the utility model;

[0017] Figure 4 It is the transverse pushing mechanism structure diagram of the utility model;

[0018] Figure 5 is the vertical longitudinal two-way adjusting mechanism connection structure diagram of the utility model;

[0019] Figure 6 is the box half cut structure diagram of the utility model;

[0020] Figure 7 is the vertical longitudinal two-way adjusting mechanism half cut structure diagram of the utility model;

[0021] Figure 8 is the horizontal moving mechanism and horizontal moving track connection structure diagram of the utility model;

[0022] Figure 9 is the horizontal moving unit explosion structure diagram of the utility model;

[0023] Figure 10 is the bolt mechanism half cut structure diagram of the utility model;

[0024] Figure 11 is the utility model Figure 10 explosion structure diagram;

[0025] Figure 12 is the lifting limit rod structure diagram of the utility model;

[0026] Figure 13 is the utility model Figure 12 explosion structure diagram;

[0027] Figure 14 is the step S1 schematic diagram of the utility model;

[0028] Figure 15 is the step S2 structure diagram of the utility model;

[0029] Figure 16 is the step S3 structure diagram of the utility model;

[0030] Figure 17 is the step S4 structure diagram of the utility model;

[0031] In the diagram: 1. Lateral-moving bridge erecting machine; 10. Middle support leg; 100. Lateral-moving unit; 101. Connecting crossbeam; 102. Concave beam; 103. Lateral-moving traveling mechanism; 104. Extension plate; 105. Telescopic cylinder; 106. U-shaped sleeve beam; 107. Shelf; 108. Through hole; 109. Pin mechanism; 1090. Telescopic adjustment kit; 1091. Pin shaft; 1092. Rack; 1093. Opening; 1094. Support platform; 1095. Second drive device; 1096. Adjusting gear; 1097. Sliding groove; 1098. Sliding block; 1099. Locking hole; 1010. Locking cylinder; 1011. Protective housing; 110. Lifting limit rod; 110. Outer rod; 1100. Limiting ring; 1101. Rotating port; 1102. Rotating rod; 1103. Receiving... Plate 1104; Diagonal brace 1105; Rotary cylinder 1106; Lifting hole 111; Through slot 112; Front support leg 11; Lateral moving track 2; Lateral moving device 3; Bottom support 30; Lateral moving track 31; I-beam 310; Locking hole 311; Vertical and longitudinal two-way adjustment mechanism 32; Box 320; Second L-shaped limit block 321; Longitudinal limit groove 322; Correction hole 323; Longitudinal correction cylinder 324; Longitudinal sliding seat 325; Limiting step 326; Vertical lifting cylinder 327; Correction connecting seat 328; Connecting beam 33; Laser emitter 34; Lateral pushing mechanism 35; Lateral pushing cylinder 350; Slide seat 351; First L-shaped limit block 352; Support seat 353; Locking bolt 354. Detailed Implementation

[0032] Example 1

[0033] like Figures 1-7 As shown, a transverse movement device for erecting precast small box girders of a double-layer bridge with a narrow upper layer and a wide lower layer includes a transverse movement device 3. The transverse movement device 3 includes multiple bottom supports 30. A transverse movement track 31 is provided on the top of the bottom supports 30. A three-way jacking mechanism for installing the lower layer side precast small box girders is provided on the top of the transverse movement track 31. During installation, the precast small box girders are installed by jacking in three directions through the three-way jacking mechanism.

[0034] The three-way jacking mechanism includes two vertical and longitudinal two-way adjustment mechanisms 32 and a transverse jacking mechanism 35 that are slidably disposed on the top of the transverse track 31. A connecting beam 33 is provided between the two vertical and longitudinal two-way adjustment mechanisms 32. The transverse track 31 is provided with a plurality of horizontally arranged locking holes 311. The telescopic end of the transverse jacking mechanism 35 is connected to one of the vertical and longitudinal two-way adjustment mechanisms 32, and the other end is provided with a locking bolt 354 that can be inserted into any of the locking holes 311.

[0035] In this way, the tail of the transverse pushing mechanism 35 can be fixed by the locking bolt 354 to provide the required support force for pushing, and after a certain stroke, the tail can be retracted by the extension and retraction of the transverse pushing oil cylinder 350 after the locking bolt 354 is released, thereby facilitating continuous pushing.

[0036] In the preferred embodiment, the transverse rail 31 is composed of two I-beams 310, and a plurality of locking holes 311 are arranged at the top of the joint between the two I-beams 310. In this way, the locking holes 311 are in communication with the cavity formed by the joint of the two I-beams 310, and the number and spacing of the locking holes 311 can be determined according to the actual installation distance required.

[0037] Further, the transverse pushing mechanism 35 includes a transverse pushing oil cylinder 350, the extension end of which is connected to one of the vertical and longitudinal adjustment mechanisms 32, and the bottom of the transverse pushing oil cylinder 350 is provided with a plurality of sliding seats 351 in sliding contact with the transverse rail 31. In this embodiment, the number of sliding seats 351 is two, and the two ends of each sliding seat 351 are connected to a first L-shaped limiting block 352 that is buckled to the edge of the I-beam 310, thereby ensuring the stability of the sliding. The tail end of the transverse pushing oil cylinder 350 is further provided with a support seat 353, and the support seat 353 is provided with a locking bolt 354, the end of which can freely penetrate the support seat 353 and be inserted into any locking hole 311.

[0038] In the preferred embodiment, the locking bolt 354 is a telescopic cylinder, which can be one of an electric cylinder, a hydraulic cylinder, and a pneumatic cylinder, thereby facilitating automatic control of the locking bolt 354.

[0039] In the preferred embodiment, the vertical and longitudinal adjustment mechanism 32 includes a box body 320 in sliding contact with the transverse rail 31 at the bottom, and the two opposite edges of the bottom of the box body 320 are provided with second L-shaped limiting blocks 321 that are buckled to the edges of the I-beams 310, thereby ensuring the stability of the sliding. The two opposite side walls of the box body 320 are provided with deviation correction holes 323, and the bottom of the two side walls is provided with a longitudinal limiting groove 322.

[0040] The inner bottom wall of the box body 320 is in sliding contact with a longitudinal sliding seat 325, the two edges of the longitudinal sliding seat 325 are provided with limiting steps 326 that are in sliding cooperation with the longitudinal limiting groove 322, so that the sliding is more stable, and the top of the longitudinal sliding seat 325 is provided with a vertical lifting oil cylinder 327. The two opposite side walls of the box body 320 are provided with longitudinal deviation correction oil cylinders 324, the extension end of each longitudinal deviation correction oil cylinder 324 penetrates through the deviation correction hole 323 and is connected to the vertical lifting oil cylinder 327 through a deviation correction connecting seat 328.

[0041] It should be noted that when the vertical lifting cylinder 327 is in the retracted state, its top height is lower than the seating height of the precast small box girder.

[0042] With this design, the vertical lifting cylinder 327 can be moved longitudinally by extending and retracting the longitudinal correction cylinder 324, thereby achieving the function of longitudinal correction. The vertical height can be controlled by extending and retracting the vertical lifting cylinder 327.

[0043] During installation, two transverse movement devices 3 are used. The two transverse movement devices 3 are set opposite to each other on two adjacent lower cap beams of the precast small box girder to be erected. In this way, the transverse movement devices 3 can be used to assist in the installation of the lower side precast small box girder that exceeds the width of the upper layer of the double-layer bridge, thus solving the problem that the transverse bridge erecting machine 1 cannot hoist the lower side precast small box girder due to the limitation of the width of the upper layer bridge.

[0044] It should be noted that the system also includes a transverse bridge erecting machine 1 installed on the upper layer of the double-layer bridge. The transverse bridge erecting machine 1 is a commonly used technical means in this field, so it will not be described in detail here.

[0045] In addition, matching laser emitters 34 and receiving targets are respectively provided on opposite sides of the connecting beam 33 of the two transverse moving devices 3, which are used to determine the relative positional relationship between the two transverse moving devices 3.

[0046] Example 2

[0047] Further explanation in conjunction with Example 1, such as Figures 1-7 As shown in Figures 14-17, a method for the transverse erection of precast small box girders for double-layer bridges with a narrower upper section and a wider lower section uses the transverse erection device for precast small box girders for double-layer bridges with a narrower upper section and a wider lower section as described in Embodiment 1 above. This method includes:

[0048] S1. The transverse bridge erecting machine 1 is positioned through the span, and the two transverse devices 3 are respectively hoisted to the two adjacent lower cap beams above it by the transverse bridge erecting machine 1, and the relative position of the three-way jacking mechanism between them is adjusted. Then the outer precast small box girder is placed on the two transverse devices 3.

[0049] S2. Use the locking bolt 354 to pass through the locking hole 311 to fix the end of the transverse jacking cylinder 350, and control the transverse jacking cylinder 350 to push the vertical and longitudinal adjustment mechanism 32, so that it carries the outer precast box beam forward a certain distance.

[0050] S3. Release the connection between the locking bolt 354 and the locking hole 311, and control the return distance of the transverse push cylinder 350 to retract its tail end.

[0051] S4, repeat steps S2 and S3 until the prefabricated small box girder is moved into position, and after correction by the longitudinal correction oil cylinder 324, the outer prefabricated small box girder is lowered onto the temporary support sand cylinder by the vertical lifting oil cylinder 327;

[0052] S5, the movable bridge erecting machine 1 turns the movable device 3 to the other side and erects the lower outer prefabricated small box girder on the other side.

[0053] Embodiment 3

[0054] Further illustrated in combination with embodiments 1 and 2, in order to facilitate the lateral movement of the middle support leg 10 and the front support leg 11 when the movable bridge erecting machine 1 passes through the hole, the lateral movement track 2 can move synchronously with the middle support leg 10 and the front support leg 11, as shown in the structure, in this embodiment, the middle support leg 10 and the front support leg 11 on the movable bridge erecting machine 1 are slidably arranged on the lateral movement track 2 through the lateral movement mechanism at the bottom thereof. Figures 8-13

[0055] It should be noted that the lateral movement mechanism is composed of one or more lateral movement units 100, the number of the lateral movement track 2 matches the number of the lateral movement unit 100, in this embodiment, the lateral movement mechanism of the middle support leg 10 is composed of two lateral movement units 100, the lateral movement mechanism of the front support leg 11 is one lateral movement unit 100, when the number of the lateral movement unit 100 is not less than two, the lateral movement units 100 are connected through the connecting beam 101 at the end, the lateral movement tracks 2 are connected through the track connecting beam 200, and the top of the lateral movement track support 4 is provided with the top beam 400 connected with the plurality of lateral movement tracks 2.

[0056] The lateral movement unit 100 includes a concave beam 102 with a middle part concave downward, the bottom of both ends of the concave beam 102 is provided with a lateral movement walking mechanism 103 slidably matched with the lateral movement track 2, the center of the lateral movement track 2 is provided with a plurality of pin holes 201, and the middle concave part of the concave beam 102 is provided with a connecting mechanism matched with the pin holes 201.

[0057] In this way, the connecting mechanism can be closest to the lateral movement track 2 by the design of the concave beam 102 with the middle part concave downward, thereby facilitating the connection between the two.

[0058] The connecting mechanism includes a U-shaped sleeve beam 106 sleeved in the middle concave part of the concave beam 102, a row of perforations 108 corresponding to the pin holes 201 are arranged on the two side walls of the U-shaped sleeve beam 106, and the perforation 108 of one of the side walls is provided with a latch mechanism 109.

[0059] When the lateral movement track 2 and the lateral movement track support 4 need to be synchronously lifted and moved, the latch mechanism 109 can be used to pass through the perforation 108 and the pin hole 201 to connect and lock the middle support leg 10, so that they become an integral structure. ​

[0060] In the preferred embodiment, the latch mechanism 109 comprises a telescopic adjusting sleeve 1090 arranged at the side wall perforation 108, a pin shaft 1091 is telescopically arranged in the telescopic adjusting sleeve 1090, a rack 1092 is embedded in the top of the pin shaft 1091, an opening 1093 is arranged on the top of the telescopic adjusting sleeve 1090 above the rack 1092, a support table 1094 is arranged on the side of the telescopic adjusting sleeve 1090, a second driving device 1095 is installed on the top of the support table 1094, and an adjusting gear 1096 is arranged on the output end of the second driving device 1095 and engaged with the rack 1092 through the opening 1093.

[0061] In use, the adjusting gear 1096 is driven to rotate by the second driving device 1095, and then telescopes in the telescopic adjusting sleeve 1090 through the engagement with the rack 1092, so as to realize the connection and separation effect between the transverse moving track 2 and the middle supporting leg 10 by controlling the telescoping of the pin shaft 1091.

[0062] In addition, a plurality of sliding grooves 1097 are arranged on the outer wall surface of the pin shaft 1091, in the embodiment, the number of the sliding grooves 1097 is two, a sliding block 1098 is arranged on the inner wall surface of the telescopic adjusting sleeve 1090 and slidably matched with the sliding grooves 1097, and the length of the sliding grooves 1097 meets the telescoping requirement of the pin shaft 1091. Through the cooperation between the sliding grooves 1097 and the sliding block 1098, the limiting effect during the telescoping of the pin shaft 1091 can be achieved, and the telescoping of the pin shaft 1091 is more stable, and unnecessary circumferential rotation of the pin shaft 1091 is prevented.

[0063] Two locking holes 1099 are arranged on the pin shaft 1091 and used for locking the pin shaft 1091 in the two states of extension and retraction, a locking cylinder 1010 is arranged outside the telescopic adjusting sleeve 1090, the telescopic end of the locking cylinder 1010 can penetrate through the telescopic adjusting sleeve 1090 and any one of the locking holes 1099, and the pin shaft 1091 can be locked in the state through the penetration of any one of the locking holes 1099, so as to prevent unnecessary movement of the pin shaft 1091.

[0064] A protective shell 1011 is sleeved on the outside of the adjusting gear 1096 for protecting the adjusting gear 1096.

[0065] In the preferred embodiment, the connecting mechanism comprises four lifting mechanisms arranged on both sides of the recessed portion in the middle of the concave beam 102, which comprises an extension plate 104 arranged on the side of the concave beam 102, a telescopic oil cylinder 105 arranged on the extension plate 104, a U-shaped sleeve beam 106 movably sleeved on the outside of the concave beam 102, and a shelf 107 arranged at each corner of the U-shaped sleeve beam 106 and connected with the telescopic end of the four telescopic oil cylinders 105.

[0066] In this way, the telescopic oil cylinder 105 can be telescoped to realize the lifting effect of the U-shaped sleeved beam 106, so that the U-shaped sleeved beam 106 is lifted without connecting the transverse moving track 2 and the middle support leg 10, thereby preventing unnecessary collision between the U-shaped sleeved beam 106 and the remaining structures on the transverse moving track 2 during normal transverse moving work of the transversely movable bridge machine 1.

[0067] The top of the concave portion of the concave beam 102 is provided with a plurality of lifting limiting rods 110, and the specific number of the lifting limiting rods 110 can be determined according to actual needs. The U-shaped sleeved beam 106 is sleeved outside the lifting limiting rods 110 through the lifting holes 111 arranged at the top of the U-shaped sleeved beam 106. The lifting limiting rods 110 can make the U-shaped sleeved beam 106 more stable during lifting.

[0068] In the preferred embodiment, the lifting limiting rod 110 includes an outer sleeve rod 1100 with an open top, and a limiting ring 1101 is arranged at the top. The diameter of the limiting ring 1101 is greater than the diameter of the lifting hole 111, which is used to limit the lifting height of the U-shaped sleeved beam 106 and prevent the U-shaped sleeved beam 106 from being separated. The inner part of the outer sleeve rod 1100 is rotatably arranged with a rotating rod 1103 through a bearing. The outer part of the rotating rod 1103 is symmetrically provided with two receiving plates 1104. The gap between the receiving plate 1104 and the limiting ring 1101 is adapted to the thickness of the top plate of the U-shaped sleeved beam 106. The outer sleeve rod 1100 is provided with a rotating hole 1102 for the extension and rotation of the two receiving plates 1104. The top of the outer sleeve rod 1100 is provided with a rotating cylinder 1106, and the top end of the rotating rod 1103 penetrates the opening and is connected with the output end of the rotating cylinder 1106.

[0069] In addition, the lifting hole 111 of the U-shaped sleeved beam 106 is provided with a through groove 112 for the receiving plate 1104 to pass through.

[0070] In this way, when the U-shaped sleeved beam 106 is lifted, the through groove 112 passes through the receiving plate 1104, and then after being lifted to the top, the rotating cylinder 1106 drives the rotating rod 1103 to rotate with the receiving plate 1104, thereby supporting the U-shaped sleeved beam 106 from the bottom, so that the telescopic oil cylinder 105 can be depressurized.

[0071] The bottom of the receiving plate 1104 and the outer wall surface of the rotating rod 1103 are also provided with a diagonal support block 1105 for improving the support strength of the receiving plate 1104. The width of the rotating hole 1102 is greater than the sum of the heights of the two.

[0072] The top of the center of the transverse moving track 2 is provided with a positioning target, and the bottom of the center of the concave beam 102 is provided with a positioning sensor matched with the positioning target, so as to facilitate the positioning work before connection by cooperation between the positioning target and the positioning sensor.

[0073] It should be noted that the second driving device 1095 is combined by a driving motor and a speed reducer, and the mechanical structure is provided with a matched controller and accessories, which is a common technical means in the art, and therefore will not be described in detail here.

[0074] The above-described embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement solutions of the technical features claimed in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.

Claims

1. A transverse movement device for erecting precast small box girders of a double-layer bridge (narrower at the top and wider at the bottom), characterized in that: It includes a transverse movement device (3), which includes multiple bottom supports (30), and a transverse movement track (31) is provided on the top of the bottom supports (30). A three-way jacking mechanism for installing the lower side precast box girder is provided on the top of the transverse movement track (31). The three-way jacking mechanism includes two vertical and longitudinal two-way adjustment mechanisms (32) and a transverse jacking mechanism (35) that are slidably set on the top of the transverse track (31). A connecting beam (33) is set between the two vertical and longitudinal two-way adjustment mechanisms (32). The transverse track (31) is provided with a plurality of horizontally arranged locking holes (311). The telescopic end of the transverse jacking mechanism (35) is connected to one of the vertical and longitudinal two-way adjustment mechanisms (32), and the other end is provided with a locking bolt (354) that can be inserted into any of the locking holes (311).

2. The transverse movement device for erecting precast small box girders of a double-layer bridge with a narrow upper section and a wide lower section as described in claim 1, characterized in that: The transverse track (31) is composed of two I-beams (310), and multiple locking holes (311) are provided at the top of the connection between the two I-beams (310).

3. The transverse movement device for erecting precast small box girders of a double-layer bridge with a narrow upper section and a wide lower section according to claim 2, characterized in that: The transverse pushing mechanism (35) includes a transverse pushing cylinder (350). The telescopic end of the transverse pushing cylinder (350) is connected to one of the vertical and longitudinal two-way adjustment mechanisms (32). The bottom of the transverse pushing cylinder (350) is provided with multiple slide seats (351) that slide in contact with the transverse track (31). Both ends of the slide seats (351) are connected to a first L-shaped limiting block (352) that interlocks with the edge of the I-beam (310). The tail end of the transverse pushing cylinder (350) is also provided with a support seat (353). A locking bolt (354) is provided on the support seat (353). The end of the locking bolt (354) can freely pass through the support seat (353) and be inserted into any locking hole (311).

4. The transverse movement device for erecting precast small box girders of a double-layer bridge with a narrow upper layer and a wide lower layer according to claim 3, characterized in that: The locking bolt (354) is a telescopic cylinder.

5. A transverse movement device for erecting precast small box girders of a double-layer bridge with a narrow upper section and a wide lower section according to any one of claims 1-4, characterized in that: The vertical and longitudinal adjustment mechanism (32) includes a housing (320) whose bottom is in sliding contact with the transverse track (31). Two L-shaped limiting blocks (321) that interlock with the edges of the I-beam (310) are provided at opposite edges of the bottom of the housing (320). Correction holes (323) are provided on opposite longitudinal sidewalls of the housing (320). Longitudinal limiting grooves (322) are provided at the bottom of the two sidewalls. Longitudinal sliding grooves (322) are slidably contacted on the inner bottom wall of the housing (320). The moving seat (325) and the longitudinal sliding seat (325) are provided with limiting steps (326) that slide with the longitudinal limiting groove (322) at both edges. A vertical lifting cylinder (327) is provided on the top of the moving seat (325). A longitudinal correction cylinder (324) is provided on the two opposite side walls of the housing (320). The telescopic end of the longitudinal correction cylinder (324) passes through the correction hole (323) and is connected to the vertical lifting cylinder (327) through the correction connecting seat (328).

6. The transverse movement device for erecting precast small box girders of a double-layer bridge with a narrow upper section and a wide lower section according to claim 5, characterized in that: There are two transverse movement devices (3). On the opposite sides of the connecting beam (33) of the two transverse movement devices (3), there are matching laser emitters (34) and receiving targets, which are used to locate the relative position relationship between the two transverse movement devices (3).

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