An auxiliary supporting device applied to prefabricated pipe gallery construction

Abstract

This utility model belongs to the field of building construction technology and provides an auxiliary support device for the construction of precast pipe galleries. It includes a first base and a second base arranged opposite to each other, and a base plate connecting the two. Each base has a set of traveling wheels and jacks at its bottom. A movable span-adjustable base is provided on the base plate, and both the base plate and the first base have horizontally movable sliding seats. Each sliding seat is connected to a liftable L-shaped support base plate. The L-shaped support base plate consists of a pit support vertical plate and a pipe gallery support beam. A retractable pit support mechanism is provided on the outside of the pit support vertical plate, and a sliding pipe gallery support mechanism is provided on the pipe gallery support beam. This utility model integrates functions such as movement, span adjustment, pipe gallery clamping and lifting, pit support, and pipe gallery bottom adjustment. It solves the problems of low installation efficiency, inaccurate positioning, and poor stability of precast pipe galleries in the prior art, and has the advantages of strong adaptability, simple operation, and safe and efficient construction.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically, it relates to an auxiliary support device used in the construction of precast pipe corridors. Background Technology

[0002] In the construction of municipal integrated utility tunnels, the use of prefabricated utility tunnel segments for on-site assembly has become the mainstream method to improve construction efficiency. At present, the installation of prefabricated utility tunnels mainly relies on large hoisting equipment (such as cranes) to lift the utility tunnel segments to the top of the foundation pit, and then manual assistance is used for rough positioning and lowering. However, this method has obvious drawbacks: (1) The utility tunnel is prone to swaying and displacement during the lowering process, making it difficult to connect with the installed segments and ensuring installation accuracy; (2) After the utility tunnel is in place, it is necessary to build an additional temporary support structure to stabilize the utility tunnel and support the side wall of the foundation pit, which is complicated, time-consuming and labor-intensive; (3) Existing auxiliary tools have poor versatility and are difficult to adapt quickly to foundation pits of different widths and depths as well as utility tunnel products of different sizes. Utility Model Content

[0003] The purpose of this utility model is to provide an auxiliary support device for the construction of precast pipe corridors, so as to solve the technical problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An auxiliary support device for precast pipe gallery construction includes a first base and a second base that are oppositely arranged and movable, a base plate that is laterally arranged between the first base and the second base, a span-adjustable base that is arranged on the base plate and can move horizontally, and jacks arranged on both sides of the bottom of the first base, the second base, and the span-adjustable base. The upper ends of both the first base and the span-adjustable base are provided with sliding seats that can move horizontally. On opposite sides of the two sliding seats are liftable support base plates. The support base plates are L-shaped and include vertical pit support uprights and horizontal pipe gallery support beams. An adjustable pit support mechanism is provided on the side of the pit support uprights facing the sliding seats, and an adjustable pipe gallery support mechanism is provided on the pipe gallery support beams. The device also includes a first drive mechanism for driving the span-adjustable base, a second drive mechanism for driving the sliding seats, and a third drive mechanism for driving the support base plates.

[0005] Preferably, the adjustable foundation pit support mechanism includes a first mounting groove disposed on the outer wall of the foundation pit support upright and arranged vertically, a support plate disposed at the opening end of the first mounting groove and arranged vertically, a first screw disposed in the first mounting groove and arranged vertically, two first slides slidably mounted in the first mounting groove and threadedly connected to the first screw, a support rod with its two ends respectively hinged to the support plate and the first slides, and a first motor disposed at one end of the first screw for driving its rotation; the two threads on both sides of the first screw are arranged in opposite directions, the two first slides are symmetrically arranged with the center of the first screw as a reference, and both are respectively threadedly connected to the two sides of the first screw.

[0006] Preferably, a telescopic sleeve is also provided in the middle of the first mounting groove, one end of which is connected to the support plate and the other end is vertically connected to the bottom of the first mounting groove.

[0007] Preferably, the adjustable pipe gallery support mechanism includes a second mounting groove disposed on the pipe gallery support beam, a fixing screw disposed in the second mounting groove, and a sliding block slidably mounted in the second mounting groove, the sliding block being driven by a fourth driving mechanism.

[0008] Preferably, the fourth driving mechanism includes a mounting plate that is threadedly connected to the fixed screw and can move axially along the fixed screw, and a driving wheel that is fixedly connected to the mounting plate and used to drive the mounting plate to rotate; the bottom of the sliding block is provided with a through groove, the mounting plate is placed in the through groove and fixedly connected to the sliding block.

[0009] Preferably, the upper end of the sliding block is provided with a nested pad via a second hydraulic telescopic cylinder, and the inner side of the foundation pit support plate is provided with a protective pad layer.

[0010] Preferably, the first driving mechanism includes a sliding guide rail disposed on the substrate and arranged along its width direction, and a first hydraulic telescopic rod arranged along the width direction of the substrate and fixedly connected at both ends to the span adjustment base and the second base, respectively, and the span adjustment base is slidably mounted on the sliding guide rail.

[0011] Preferably, the second driving mechanism includes a slide groove arranged along the width direction, a second screw disposed in the slide groove, a second slide block slidably mounted in the slide groove and threadedly connected to the second screw, and a second motor disposed at one end of the second screw and used to drive its rotation; the slide block is fixedly connected to the second slide block.

[0012] Preferably, the third driving mechanism includes a second hydraulic telescopic rod disposed on the upper end of the sliding seat and arranged vertically, and a lifting plate disposed on the second hydraulic telescopic rod and arranged horizontally; the lifting plate is fixedly connected to the second hydraulic telescopic rod, and the upper end of the pit support upright plate is fixedly connected to one side of the lifting plate.

[0013] Preferably, a set of traveling wheels is provided at the bottom of the first base, the second base, and the span adjustment base; wherein, a groove is provided on the first base and the span adjustment base, and a first hydraulic telescopic cylinder connected to the set of traveling wheels is provided in the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model includes a first base, a second base, a base plate, a span adjustment base, a sliding seat, a support base plate, an adjustable foundation pit support mechanism and an adjustable pipe gallery support mechanism. By adopting this utility model, the clamping, adjustment and temporary support of the foundation pit sidewall of the pipe gallery can be integrated into one, which not only ensures the accuracy of the pipe gallery installation, but also eliminates the need to build an additional temporary support structure after the pipe gallery is in place, thus simplifying the construction process and reducing equipment and labor input.

[0015] (2) This utility model can accurately adapt to different pit sizes and pipe gallery specifications through multi-level adjustment of the span adjustment base, sliding seat and sliding block, realizing the universality of the device. At the same time, with the screw drive and hydraulic drive, the stability and accuracy of the adjustment are guaranteed.

[0016] (3) This utility model adopts mechanized operation to replace a large amount of existing manual work, making the process of pipe gallery hoisting, positioning, lowering and support quick and continuous. Moreover, its stable support greatly improves the stability and safety of the pipe gallery installation process.

[0017] (4) This utility model is equipped with a set of traveling wheels, a jack and a retractable support structure, which enables the device to be quickly moved to the construction site and placed across the foundation pit, thereby improving construction efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the diagram.

[0020] Figure 3 for Figure 1 Enlarged schematic diagram of part B in the diagram.

[0021] Figure 4 for Figure 1 Enlarged schematic diagram of part C in the diagram.

[0022] The corresponding names of the reference numerals in the attached drawings are as follows: 1-First base, 2-Second base, 3-Base plate, 4-Span adjustment base, 5-Sliding seat, 6-Pit support upright plate, 7-Pipe gallery support beam, 8-Second mounting groove, 9-Fixing screw, 10-Sliding block, 11-Traveling wheel set, 12-Groove, 13-First hydraulic telescopic cylinder, 14-Jack, 15-Sliding guide rail, 16-First hydraulic telescopic rod, 17-Slide groove, 18-Second screw, 19-Second sliding seat 20-Second sprocket, 21-Second motor, 22-Second hydraulic telescopic rod, 23-Lifting plate, 24-Mounting plate, 25-Drive wheel, 26-Through groove, 27-First mounting groove, 28-Support plate, 29-First screw, 30-First slide block, 31-Support rod, 32-First sprocket, 33-Telescopic sleeve, 34-Nested pad, 35-Protective pad, 36-Mounting through hole, 37-Second hydraulic telescopic cylinder, 38-Support pad, 39-First motor. Detailed Implementation

[0023] To enable those skilled in the art to have a clearer understanding of this utility model, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model and facilitate understanding. The technical solutions provided by this utility model are not limited to those provided in the following embodiments, nor should they limit the scope of protection of this utility model.

[0024] Example like Figures 1-4 As shown, this embodiment provides an auxiliary support device for the construction of precast pipe gallery. The auxiliary support device is used to assist in the hoisting and installation of precast pipe gallery. It consists of a first base 1, a second base 2, and a base plate 3 fixedly connected to the upper part of the two. The first base 1 and the second base 2 are arranged opposite to each other on both sides of the foundation pit.

[0025] A sliding guide rail 15 is mounted on the upper surface of the substrate 3. The span adjustment base 4 cooperates with the sliding guide rail 15 through the slider at its bottom to achieve horizontal sliding along the length direction of the substrate 3 (i.e., the width direction of the pit). The cylinder end of the first hydraulic telescopic rod 16 is hinged to the second base 2, and the piston rod end is hinged to the span adjustment base 4. The telescopic movement of the first hydraulic telescopic rod 16 drives the span adjustment base 4 to move, thereby adjusting the effective span of the entire device.

[0026] Both the first base 1 and the span adjustment base 4 are provided with a sliding seat 5 that can move in the horizontal direction. The specific arrangement is as follows: a sliding groove 17 is opened on the upper end surface of the first base 1 and the span adjustment base 4 along the width direction of the device (perpendicular to the length direction of the base plate 3). A second screw 18 is rotatably installed in the sliding groove 17 through a bearing. A second sliding seat 19 is provided on the second screw 18. A threaded hole is opened on the second sliding seat 19 to cooperate with the second screw 18. The two are connected by threads, so that the second sliding seat 19 can slide in the sliding groove 17.

[0027] The second motor 21 drives the second screw 18 to rotate. For example, the second motor 21 drives the second screw 18 to rotate directly or indirectly through a coupling or a reduction mechanism; or, the second motor 21 drives the second screw 18 to rotate through the second sprocket 20. The output shaft of the second motor 21 is connected to the second sprocket 20 through a keyway or a coupling. The second sprocket 20 is connected to the sprocket on the second screw 18 through a chain. The second sprocket 20 achieves chain drive through the chain (not shown in the figure), thereby driving the second screw 18 to rotate. Chain drive is an existing mature transmission structure, so it will not be described in detail here.

[0028] The sliding seat 5 is fixed as a whole with the second sliding seat 19. Under the drive of the second motor 21, the sliding seat 5 can move along the slide groove 17 together with the second sliding seat 19, thereby realizing the adjustment of the distance between the two sliding seats 5.

[0029] In this embodiment, two spaced-apart second hydraulic telescopic rods 22 are vertically installed above each sliding seat 5. A horizontal lifting plate 23 is fixedly connected to the top of the piston rod of the second hydraulic telescopic rod 22. The upper end of an L-shaped support base plate is fixedly connected to the lifting plate 23. The support base plate is welded or integrally formed from a vertical pit support upright plate 6 and a horizontal pipe gallery support beam 7. The second hydraulic telescopic rods 22 drive the support base plate (i.e., the pit support upright plate 6 and the pipe gallery support beam 7) to move up and down through the lifting plate 23.

[0030] In this embodiment, a vertically extending first mounting groove 27 is provided on the outer side wall of the foundation pit support plate 6 facing away from the center of the foundation pit. An adjustable foundation pit support mechanism is installed in this groove. The adjustable foundation pit support mechanism mainly consists of a support plate 28, a first screw 29, two first slides 30, a support rod 31, and a first motor 39. The first screw 29 is arranged vertically, and its two ends are connected to the upper and lower walls of the first mounting groove 27 through bearing seats. The first screw 29 is provided with two sections of threads with opposite directions. The two first slides 30 are provided with corresponding threaded holes inside, which respectively mate with the two sections of threads. The two first slides 30 are symmetrically arranged, and each first slide 30 is hinged to the inner side of the support plate 28 through a support rod 31.

[0031] The first motor 39 drives the first screw 29 to rotate. For example, the first motor 39 drives the first screw 29 to rotate directly or indirectly through a coupling or a reduction mechanism; or, the first motor 39 drives the first screw 29 to rotate through the first sprocket 33. The output shaft of the first motor 39 is connected to the first sprocket 33 through a keyway or coupling. The first sprocket 33 is connected to the sprocket on the first screw 29 through a chain. The first sprocket 33 achieves chain drive through the chain (not shown in the figure), thereby driving the first screw 29 to rotate. Chain drive is an existing mature transmission structure, so it will not be described in detail here. When the first motor 39 drives the first screw 29 to rotate, the two first slide blocks 30 move synchronously towards or away from each other. Through the transmission of the support rod 31, the support plate 28 can be pushed out to press against the side wall of the pit, or pulled back. To increase the movement stability of the support plate 28, a telescopic sleeve 33 can also be set in the middle of the first mounting groove 27. One end of the sleeve is connected to the support plate 28, and the other end is connected to the bottom of the groove, which serves as a guide and auxiliary support.

[0032] On the upper end face of the pipe rack support beam 7, a second mounting groove 8 is formed along its length direction (parallel to the base plate 3). Both ends of a fixing screw 9 are fixed within this mounting groove 8. A sliding block 10, capable of sliding along the groove, is also installed within the mounting groove 8. The movement of the sliding block 10 is driven by the following structure: a mounting disc 24 with a threaded hole at its center that mates with the fixing screw 9, forming a threaded pair. A drive wheel 25 is fixed to the upper surface of the mounting disc 24. A through groove 26 is formed at the bottom of the sliding block 10, and the mounting disc 24 is housed within and fixed to this through groove 26. When the exposed drive wheel 25 is rotated by a tool or manually, the mounting disc 24 rotates and moves axially along the fixed fixing screw 9, thereby causing the sliding block 10 to move synchronously.

[0033] In this embodiment, a nested pad 34 is installed at the upper end of the sliding block 10 via a second hydraulic telescopic cylinder 37. At the same time, a protective pad 35 is pasted on the inner side of the foundation pit support plate 6 facing the pipe gallery to avoid damaging the outer wall of the pipe gallery.

[0034] To achieve movement and stability of the device, travel wheel sets 11 are installed at the bottom of the first base 1, the second base 2, and the span-adjustable base 4. The travel wheel sets 11 at the bottom of the first base 1 and the span-adjustable base 4 are connected to a first hydraulic telescopic cylinder 13, which is installed in a groove 12 at the bottom of the base and used to control the raising and lowering of the travel wheel sets 11. Jacks 14 for final stable support are provided on the first base 1, the second base 2, and the span-adjustable base 4. Each base has two jacks 14 at its bottom, located on either side of the travel wheel sets 11.

[0035] It should be noted that in this embodiment, the first hydraulic telescopic rod, the first hydraulic telescopic cylinder, the second hydraulic telescopic rod, and the second hydraulic telescopic cylinder can also be pneumatic telescopic devices or electric telescopic devices, which are equivalent substitutions and should also fall within the protection scope of this application.

[0036] The working process of this utility model is as follows: (1) Erection of support equipment: Push the equipment to the edge of the pit using the travel wheel set 11, operate the first hydraulic telescopic cylinder 13 on the first base 1 and the span adjustment base 4 to raise their travel wheel sets 11, using only the wheel set of the second base 2 for support. Activate the first hydraulic telescopic rod 16 to push the span adjustment base 4 away from the first base 1, making the span of the device greater than the width of the pit. Lower all the travel wheel sets 11 and push the device directly above the pit, so that the first base 1 and the second base 2 are located on both sides of the pit. Retract all the travel wheel sets 11 and lower the jacks 14 at the bottom of each base to compact them with the ground, completing the stable erection.

[0037] (2) Fixing the precast pipe gallery: According to the width of the precast pipe gallery to be installed, adjust the distance between the two sliding seats 5, rotate the two drive wheels 25, and adjust the horizontal position of the nested pads 34 on the two sliding blocks 10 so that they are aligned with the design support points at the bottom of the pipe gallery. Use an external crane to lift the precast pipe gallery between the two foundation pit support plates 6 and slowly lower it so that the bottom of the pipe gallery is accurately placed on the two nested pads 34. At this time, the protective pad 35 is in contact with the outer wall of the pipe gallery. During this process, the level of the pipe gallery can be finely adjusted by controlling the extension and retraction of each second hydraulic telescopic cylinder 37.

[0038] (3) Positioning of the precast pipe gallery: Simultaneously operate the two second hydraulic telescopic rods 22 to retract, driving the entire support base plate and the supported precast pipe gallery to sink smoothly to the predetermined height in the pit; during this process, the second motor 21 and drive wheel 25 can be finely adjusted again to adjust the real-time position of the precast pipe gallery, so as to achieve precise positioning of the pipe gallery in front and behind and left and right, ensuring that the precast pipe gallery is accurately installed on the protective foundation and connected and assembled with the previous precast pipe gallery section, ensuring that it is perfectly connected with the adjacent pipe gallery section or foundation.

[0039] (4) Fixing of precast pipe gallery: After the pipe gallery is accurately positioned, start the two first motors 39 to drive the two support plates 28 to extend outward and firmly press against the soil walls on both sides of the foundation pit to form temporary support and support the side walls of the foundation pit; then, pour the gap and anchor holes between the fixed precast pipe gallery and the previous precast pipe gallery and the protective foundation by the cast-in-place method. After the concrete reaches sufficient strength, retract the support plate 28, raise the support base plate, reset the device, and then carry out the next cycle of operation.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An auxiliary support device for the construction of precast pipe galleries, characterized in that, The system includes a first base (1) and a second base (2) that are relatively disposed and movable; a base plate (3) that is laterally disposed between the first base (1) and the second base (2); a span adjustment base (4) disposed on the base plate (3) and movable in the horizontal direction; and jacks (14) disposed on both sides of the bottom of the first base (1), the second base (2), and the span adjustment base (4); the upper ends of the first base (1) and the span adjustment base (4) are each provided with a sliding seat (5) that can move in the horizontal direction. Each side is provided with a liftable support base plate. The support base plate is L-shaped and includes a vertical pit support plate (6) and a horizontal pipe gallery support beam (7). The pit support plate (6) facing the sliding seat (5) is provided with an adjustable pit support mechanism. The pipe gallery support beam (7) is provided with an adjustable pipe gallery support mechanism. It also includes a first drive mechanism for driving the span adjustment base (4), a second drive mechanism for driving the sliding seat (5), and a third drive mechanism for driving the support base plate.

2. The auxiliary support equipment for precast pipe gallery construction according to claim 1, characterized in that: The adjustable foundation pit support mechanism includes a first mounting groove (27) arranged vertically on the outer wall of the foundation pit support upright plate (6), a support plate (28) arranged vertically at the opening end of the first mounting groove (27), a first screw (29) arranged vertically in the first mounting groove (27), two first slide blocks (30) slidably mounted in the first mounting groove (27) and threadedly connected to the first screw (29), a support rod (31) hinged at both ends to the support plate (28) and the first slide block (30) respectively, and a first motor (39) arranged at one end of the first screw (29) for driving its rotation; the threads on both sides of the first screw (29) are arranged in opposite directions, the two first slide blocks (30) are symmetrically arranged with the center of the first screw (29) as a reference, and the two are respectively threadedly connected to the two sides of the first screw (29).

3. The auxiliary support equipment for precast pipe gallery construction according to claim 2, characterized in that: A telescopic sleeve (33) is also provided in the middle of the first mounting groove (27). One end of the telescopic sleeve (33) is connected to the support plate (28), and the other end is vertically connected to the bottom of the first mounting groove (27).

4. The auxiliary support equipment for precast pipe gallery construction according to claim 3, characterized in that: The adjustable pipe gallery support mechanism includes a second mounting groove (8) set on the pipe gallery support beam (7), a fixing screw (9) set in the second mounting groove (8), and a sliding block (10) slidably installed in the second mounting groove (8), the sliding block (10) being driven by a fourth driving mechanism.

5. The auxiliary support equipment for precast pipe gallery construction according to claim 4, characterized in that: The fourth drive mechanism includes a mounting plate (24) threadedly connected to the fixed screw (9) and movable along the axial direction of the fixed screw (9), and a drive wheel (25) fixedly connected to the mounting plate (24) and used to drive the mounting plate (24) to rotate; the bottom of the sliding block (10) is provided with a through groove (26), the mounting plate (24) is placed in the through groove (26) and fixedly connected to the sliding block (10).

6. The auxiliary support equipment for precast pipe gallery construction according to claim 5, characterized in that: The upper end of the sliding block (10) is provided with a nested pad (34) via the second hydraulic telescopic cylinder (37), and the inner side of the foundation pit support plate (6) is provided with a protective pad (35).

7. The auxiliary support equipment for precast pipe gallery construction according to any one of claims 1 to 6, characterized in that: The first driving mechanism includes a sliding guide rail (15) disposed on the substrate (3) and arranged along its width direction, and a first hydraulic telescopic rod (16) arranged along the width direction of the substrate (3) and fixedly connected at both ends to the span adjustment base (4) and the second base (2), respectively. The span adjustment base (4) is slidably mounted on the sliding guide rail (15).

8. The auxiliary support equipment for precast pipe gallery construction according to claim 7, characterized in that: The second drive mechanism includes a slide groove (17) arranged along the width direction, a second screw (18) disposed in the slide groove (17), a second slide block (19) slidably mounted in the slide groove (17) and threadedly connected to the second screw (18), and a second motor (21) disposed at one end of the second screw (18) and used to drive its rotation; the slide block (5) is fixedly connected to the second slide block (19).

9. The auxiliary support equipment for precast pipe gallery construction according to claim 8, characterized in that: The third driving mechanism includes a second hydraulic telescopic rod (22) arranged vertically on the upper end of the sliding seat (5) and a lifting plate (23) arranged horizontally on the second hydraulic telescopic rod (22); the lifting plate (23) is fixedly connected to the second hydraulic telescopic rod (22), and the upper end of the foundation pit support plate (6) is fixedly connected to one side of the lifting plate (23).

10. The auxiliary support equipment for precast pipe gallery construction according to claim 1, characterized in that: A travel wheel set (11) is provided at the bottom of the first base (1), the second base (2) and the span adjustment base (4); wherein, a groove (12) is provided on the first base (1) and the span adjustment base (4), and a first hydraulic telescopic cylinder (13) connected to the travel wheel set (11) is provided in the groove (12).

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