A kind of non-demolition and de-voiding support device for confined space

Abstract

The present invention discloses a non-demolition voiding support device for a confined space, which comprises a lower template. In the middle of the upper end of the lower template, a plurality of cushion blocks are fixedly connected. The upper end and the right end of the lower template are fixedly connected with a spraying device together. The upper ends of the plurality of cushion blocks are fixedly connected with a plurality of aerated blocks. The upper ends of the plurality of aerated blocks are fixedly connected with a connecting device together. The left part of the upper end and the right part of the upper end of the connecting device are both fixedly connected with a limiting device. An adjusting device is movably connected between the two limiting devices. The upper end of the adjusting device is fixedly connected with a bearing plate. A placing groove is formed in the upper end of the bearing plate. Through grooves are formed in the front part and the rear part of the upper end of the lower template. The non-demolition voiding support device for a confined space of the present invention has a reasonable overall structure design, is structurally stable, is convenient for disassembly, installation and use, has strong adjustability, and is suitable for wide application.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a dismantling-free hollowing bracket device in a limited space. Background Art

[0002] According to the conclusion of the analysis of the cause of the roadbed arching, it is believed that the expansion of cement caused by sulfate erosion in the 5% cement-improved soil cushion layer of the original roadbed is the main cause of the roadbed arching. Through scheme comparison and comprehensive consideration of various factors such as investment, construction period and feasibility, a continuous pile-board structure is set up in the roadbed section, and the harmful soil layer is not completely excavated. A 30cm high hollow buffer layer is reserved between the bottom of the bearing plate and the roadbed to prevent the continued arching in the later stage from causing structural damage to the pile-board structure. According to the actual situation of the project site, the construction site is limited. Considering the construction period, quality, safety and economic requirements, when selecting the support system, the structural design of the template and its bracket must be safe and reliable, and the cost is economical and reasonable. After research and discussion, template and support calculation and economic comparison, and comprehensive consideration of previous construction experience, it was determined to use segmented aerated block masonry strip foundation + erection of square timber + laying of bottom formwork support to cast the bearing plate for construction. The inventors found that there are at least the following problems in the prior art that have not been solved: 1. After the existing segmented aerated blocks are completed, they are easily used outdoors to cause the water in the mortar in the aerated blocks to evaporate too quickly, resulting in cracking and low strength; 2. In the prior art, the height cannot be adjusted according to the needs of use, and the use has certain limitations; 3. In the prior art, the support effect is poor, resulting in instability and tipping of the bottom end, affecting the progress of later construction; Therefore, we propose a limited space free-standing bracket device that does not require dismantling. Summary of the invention

[0003] The main purpose of the present invention is to provide a limited space free-standing bracket device which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A limited space non-removal hollowing bracket device comprises a lower template, a plurality of pads are fixedly connected to the middle part of the upper end of the lower template, a spraying device is fixedly connected to the upper end and the right end of the lower template, a plurality of aeration blocks are fixedly connected to the upper ends of the plurality of pads, a connecting device is fixedly connected to the upper ends of the plurality of aeration blocks, a limiting device is fixedly connected to the upper left part and the upper right part of the connecting device, an adjusting device is movably connected between the two limiting devices, a bearing plate is fixedly connected to the upper end of the adjusting device, a placement groove is provided at the upper end of the bearing plate, and a through groove is provided at the upper front part and the upper rear part of the lower template.

[0006] As a further improvement of the above solution, the connecting device includes a partition board. A plurality of panels are fixedly connected to the upper end of the partition board. A plurality of stiffening ribs are fixedly connected to the upper end of the partition board. A sealing plate is fixedly connected to the upper ends of the panel and the stiffening ribs together. The partition board is fixedly connected to the upper end of the aerated block.

[0007] As a further improvement of the above solution, the spraying device includes a first water storage tank and a second water storage tank. A spraying assembly is fixedly connected between the first water storage tank and the second water storage tank in an interpenetrating manner. There are two spraying assemblies, and the two spraying assemblies are distributed symmetrically front and back. Water injection covers are movably connected to the front parts of the upper ends of the first water storage tank and the second water storage tank respectively. The first water storage tank and the second water storage tank are fixedly connected to the left part and the right part of the upper end of the lower template respectively.

[0008] As a further improvement of the above solution, the spraying assembly includes a long water pipe. A plurality of nozzles are fixedly connected to the front end of the long water pipe. Spray holes are opened at the front ends of the nozzles. Circular grooves are fixedly connected to the left end and the right end of the long water pipe respectively. A suction pump is sleeved on the outer surface of each circular groove. Circular grooves are opened at the left end and the right end of the connecting pipe. The connecting pipe on the right side is fixedly connected to the left rear part of the second water storage tank in an interpenetrating manner, and the connecting pipe on the left side is fixedly connected to the right rear part of the first water storage tank.

[0009] As a further improvement of the above solution, the limiting device includes a limiting plate. Second sliding grooves are opened in the middle of the front end and the middle of the right end of the limiting plate. A first sliding groove is opened in the middle of the left end of the limiting plate. Limiting rods are fixedly connected between the upper plate wall and the lower plate wall of the limiting plate. There are two limiting rods, and the two limiting rods are symmetrically distributed front and back. A plurality of screw holes are opened in the right part of the outer surface of each limiting rod. The limiting plate is fixedly connected to the left front part of the upper end of the sealing plate.

[0010] As a further improvement of the above solution, the adjusting device includes position plates. There are two position plates. A load-bearing plate is fixedly connected between the two position plates. Extension plates are fixedly connected to the front end and the rear end of the load-bearing plate. Second sliders are fixedly connected to the left end and the right end of the position plates. First sliders are fixedly connected to the middle of the front end and the middle of the right end of the position plates. Limiting holes are opened in the front part and the rear part of the upper end of the position plates. Two installation grooves are opened between the left end and the right end of the position plates. A fastening bolt is threadedly connected in each installation groove. The left position plate is movably connected in the left limiting plate.

[0011] As a further improvement of the above solution, the two first sliders and the second slider are integrally formed with the position plate. The two first sliders are respectively slidably connected in the two second chutes on the left side, and the second slider is slidably connected in the first chute on the left side. The position dimensions of the two fastening bolts are adapted to the position dimensions of a plurality of screw holes.

[0012] As a further improvement of the above solution, a plurality of the nozzles are horizontally and equally spaced one by one, and a plurality of nozzles are all in a conical structure. The long water pipe is internally communicated with the first water storage tank and the second water storage tank.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, by fixedly installing the first water storage tank at the left and right upper parts of the lower template, opening the water injection cover, filling the first water storage tank and the second water storage tank with water source, fixedly installing the long water pipe between the first water storage tank and the second water storage tank, and the two long water pipes are located on the front and back sides of the aerated block, starting the pump, pumping water into the first water storage tank and the second water storage tank through the connecting pipe to the long water pipe, and spraying and cooling the aerated block by a plurality of nozzles, so that the aerated block maintains moisture, avoiding the rapid evaporation of water in the mortar in the aerated block caused by high temperature. Since a plurality of nozzles are all designed in a conical structure, the spraying area is increased, the aerated block can be properly maintained, the tolerance strength of the aerated block is enhanced, and the aerated block is prevented from cracking due to high temperature volatilization.

[0015] 2. In the present invention, the first slider is arranged to move in the two second chutes on the left side, and the second slider is in the limiting plate on the left side. According to the required height for use, since the position dimensions of the two fastening bolts are adapted to the position dimensions of a plurality of screw holes, the second slider is fixed in the limiting plate by passing the two fastening bolts through the screw holes, and the threaded connection method is adopted, which is convenient for disassembly and installation, and has strong adjustability.

[0016] 3. In the present invention, the panel and the stiffening rib are respectively fixedly installed on the partition board. The stiffening rib is made of 10*10 cm square wood, and the panel is a large-piece high-strength recycled bamboo plywood with a thickness of 15 mm. It can not only ensure the appearance quality, but also be light in weight and convenient for operation, reducing the cost. Since the panel and the stiffening rib are staggered, double-sided adhesive tape is bonded at the joint of the panel and the stiffening rib to prevent slurry leakage, further enhancing the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 This is the overall structural schematic diagram of a non - demolition and void - removing support device for a limited space in the present invention;

[0019] Figure 2 This is the structural schematic diagram of the connection device of a non - demolition and void - removing support device for a limited space in the present invention;

[0020] Figure 3 This is the structural schematic diagram of the spraying device of a non - demolition and void - removing support device for a limited space in the present invention;

[0021] Figure 4 This is the structural schematic diagram of the spraying assembly of a non - demolition and void - removing support device for a limited space in the present invention;

[0022] Figure 5 This is the structural schematic diagram of the limiting device of a non - demolition and void - removing support device for a limited space in the present invention;

[0023] Figure 6 This is the structural schematic diagram of the adjusting device of a non - demolition and void - removing support device for a limited space in the present invention.

[0024] In the figure: 1, lower template; 2, spacer block; 3, through - slot; 4, adjusting device; 5, spraying device; 6, placing groove; 7, bearing plate; 8, connection device; 9, limiting device; 10, aerated concrete block; 81, partition board; 82, stiffening rib; 83, panel; 84, sealing plate; 51, first water storage tank; 52, water injection cover; 54, spraying assembly; 55, second water storage tank; 541, long water pipe; 542, pump; 543, connecting pipe; 544, round groove; 545, spray hole; 546, nozzle; 91, first sliding groove; 92, screw hole; 93, second sliding groove; 94, limiting rod; 95, limiting plate; 41, first sliding block; 42, positioning plate; 43, load - bearing plate; 44, extension plate; 45, fastening bolt; 46, limiting hole; 47, second sliding block; 48, installation groove. Detailed implementation manners

[0025] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the detailed implementation manners.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "back end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The technical solution of the present invention will be further described below with reference to the drawings.

[0029] As Figure 1-6 shown, a non-dismantling and voiding support device for a confined space includes a lower template 1. In the middle of the upper end of the lower template 1, a plurality of cushion blocks 2 are fixedly connected. The upper end and the right end of the lower template 1 are jointly fixedly connected with a spraying device 5. The upper ends of the plurality of cushion blocks 2 are fixedly connected with a plurality of aerated blocks 10. The upper ends of the plurality of aerated blocks 10 are jointly fixedly connected with a connecting device 8. The left part and the right part of the upper end of the connecting device 8 are both fixedly connected with a limiting device 9. Between the two limiting devices 9, an adjusting device 4 is movably connected. The upper end of the adjusting device 4 is fixedly connected with a bearing plate 7. A placing groove 6 is opened at the upper end of the bearing plate 7. Through grooves 3 are opened at the front part and the back part of the upper end of the lower template 1.

[0030] The connecting device 8 includes a partition plate 81. Several panels 83 are fixedly connected to the upper end of the partition plate 81. Several stiffening ribs 82 are fixedly connected to the upper end of the partition plate 81. A sealing plate 84 is fixedly connected to the upper ends of the panels 83 and the stiffening ribs 82 together. The partition plate 81 is fixedly connected to the upper end of the aerated block 10. The stiffening ribs 82 are made of 10*10 cm square timbers, and the panel 83 is a large-sized high-strength recycled 15-mm-thick bamboo plywood, which can ensure the appearance quality. Since the 10*10 cm stiffening ribs 82 are laid horizontally with a spacing of 30 cm between the stiffening ribs 82, and the panel 83 with a size of 2.44 m * 1.22 m * 15 mm is fully laid on the top surface of the stiffening ribs 82, the stiffening ribs 82 and the panel 83 are tightly connected with iron nails. Since the panel 83 and the stiffening ribs 82 are staggered, double-sided adhesive tapes are bonded at the joints between the panel 83 and the stiffening ribs 82 to prevent slurry leakage.

[0031] The spraying device 5 includes a first water storage tank 51 and a second water storage tank 55. A spraying assembly 54 is fixedly connected between the first water storage tank 51 and the second water storage tank 55 by interspersing. There are two spraying assemblies 54, and the two spraying assemblies 54 are distributed in a front-back mirror image. Water injection covers 52 are movably connected to the front parts of the upper ends of the first water storage tank 51 and the second water storage tank 55 respectively. The first water storage tank 51 and the second water storage tank 55 are fixedly connected to the left part and the right part of the upper end of the lower template 1 respectively. The spraying assembly 54 includes a long water pipe 541. Several nozzles 546 are fixedly connected to the front end of the long water pipe 541. Spray holes 545 are opened at the front ends of the nozzles 546. Circular grooves 544 are fixedly connected to the left end and the right end of the long water pipe 541. A pumping pump 542 is sleeved on the outer surface of each circular groove 544. Circular grooves 544 are opened at the left end and the right end of the connecting pipe 543. The right connecting pipe 543 is fixedly connected to the rear left part of the second water storage tank 55, and the left connecting pipe 543 is fixedly connected to the rear right part of the first water storage tank 51. The several nozzles 546 are distributed horizontally at equal intervals one by one, and the several nozzles 546 are all in a conical structure. The long water pipe 541 is internally communicated with the first water storage tank 51 and the second water storage tank 55. Since the several nozzles 546 are all in a conical structure, the spraying area is increased. Since the several nozzles 546 are distributed horizontally at equal intervals one by one, the aerated block 10 can be sprayed and cooled to keep the aerated block 10 moist.

[0032] The limiting device 9 includes a limiting plate 95. A second sliding groove 93 is provided in the middle of the front end and the middle of the right end of the limiting plate 95. A first sliding groove 91 is provided in the middle of the left end of the limiting plate 95. A limiting rod 94 is fixedly connected between the upper plate wall and the lower plate wall of the limiting plate 95. There are two limiting rods 94, and the two limiting rods 94 are symmetrically distributed front and back. A plurality of screw holes 92 are provided on the right part of the outer surface of the limiting rod 94. The limiting plate 95 is fixedly connected to the upper left part of the sealing plate 84; by fixedly connecting the limiting rod 94 between the upper plate wall and the lower plate wall of the limiting plate 95, and there are two limiting rods 94, which are used to limit the position plate 42 to prevent position deviation.

[0033] The adjusting device 4 includes position plates 42. There are two position plates 42. A load-bearing plate 43 is fixedly connected between the two position plates 42. Extension plates 44 are fixedly connected to the front end and the rear end of the load-bearing plate 43. Second sliders 47 are fixedly connected to the left end and the right end of the position plate 42. First sliders 41 are fixedly connected to the middle of the front end and the middle of the right end of the position plate 42. Limiting holes 46 are provided in the front part and the rear part of the upper end of the position plate 42. Two installation grooves 48 are provided between the left end and the right end of the position plate 42. A fastening bolt 45 is threadedly connected in the installation groove 48. The left position plate 42 is movably connected in the left limiting plate 95; the two first sliders 41 and the second sliders 47 are integrally formed with the position plate 42. The two first sliders 41 are respectively slidably connected in the two second sliding grooves 93 on the left side. The second slider 47 is slidably connected in the first sliding groove 91 on the left side. The position dimensions of the two fastening bolts 45 are adapted to the position dimensions of the plurality of screw holes 92; by the two first sliders 41 being respectively slidably connected in the two second sliding grooves 93 on the left side and the second slider 47 being slidably connected in the first sliding groove 91 on the left side, the second slider 47 is in the left limiting plate 95. According to the usage requirement height, since the position dimensions of the two fastening bolts 45 are adapted to the position dimensions of the plurality of screw holes 92, the second slider 47 is fixed and installed in the limiting plate 95 by the two fastening bolts 45 passing through the screw holes 92. Adopting the threaded connection method is convenient for disassembly and installation, and has strong adjustability.

[0034] In summary, during the use of the present invention, several cushion blocks 2 are fixedly installed at the upper end of the lower template 1, and autoclaved sand aerated concrete blocks are fixedly installed on the several cushion blocks 2. The material of the autoclaved sand aerated concrete blocks 10 is autoclaved sand aerated concrete blocks, and the specification size is processed by the manufacturer according to the on-site requirements into 600mm×200mm×300mm, which is convenient for on-site construction and reduces waste. The mortar used is high-strength M10 mortar, and the mortar is uniformly mixed and supplied by the mixing station. After the autoclaved sand aerated concrete block 10 masonry is constructed, a first water storage tank 51 is fixedly installed at the left and right upper parts of the upper end of the lower template 1. The water injection cover 52 is opened, and the first water storage tank 51 and the second water storage tank 55 are filled with water. A long water pipe 541 is fixedly installed in an interspersed manner between the first water storage tank 51 and the second water storage tank 55. The two long water pipes 541 are located on the front and back sides of the autoclaved sand aerated concrete block 10. The water pump 542 is started, and water is pumped from the first water storage tank 51 and the second water storage tank 55 into the long water pipe 541 through the connecting pipe 543, and the autoclaved sand aerated concrete block 10 is sprayed and cooled by several spray heads 546, so that the autoclaved sand aerated concrete block 10 maintains moisture, and the rapid evaporation of moisture in the mortar in the autoclaved sand aerated concrete block 10 caused by high temperature is avoided. Since several spray heads 546 are all designed in a conical structure, the spraying area is increased, and the autoclaved sand aerated concrete block 10 can be properly cured, the tolerance strength of the autoclaved sand aerated concrete block 10 is enhanced, and the autoclaved sand aerated concrete block 10 is prevented from cracking due to high temperature volatilization. A partition plate 81 is fixedly installed on the upper ends of several autoclaved sand aerated concrete blocks 10. A panel 83 and stiffening ribs 82 are respectively fixedly installed on the partition plate 81. The stiffening ribs 82 are made of 10*10cm square timbers, and the panel 83 is a large-piece high-strength recycled 15mm thick bamboo plywood, which can not only ensure the appearance quality, but also is light in weight and convenient for operation, reducing costs. The 10*10cm stiffening ribs 82 are laid horizontally, and the spacing of the stiffening ribs 82 is 30cm. The top surface of the stiffening ribs 82 is fully covered with a panel 83 with dimensions of 2.44m*1.22m*15mm. The stiffening ribs 82 and the panel 83 are tightly connected with iron nails. Since the panel 83 and the stiffening ribs 82 are staggered, double-sided adhesive tape is bonded at the joints of the panel 83 and the stiffening ribs 82 to prevent slurry leakage. Since the two first sliders 41 are respectively slidably connected in the two second chutes 93 on the left side, and the second slider 47 is slidably connected in the first chute 91 on the left side, the two first sliders 41 are respectively movable in the two second chutes 93 on the left side, and the second slider 47 is within the left limiting plate 95. According to the required height for use, since the position dimensions of the two fastening bolts 45 are all adapted to the position dimensions of several screw holes 92, the second slider 47 is fixedly installed in the limiting plate 95 by passing the two fastening bolts 45 through the screw holes 92. By adopting a threaded connection method, it is convenient for disassembly and installation, and has strong adjustability. A bearing plate 43 is fixedly installed between the two second sliders 47, and extension plates 44 are fixedly installed on the front and back sides of the bearing plate 43 to increase the support points and ensure the stability of the bearing plate 7. The overall device has a reasonable structure design and strong applicability, which is beneficial for use in building construction work.

[0035] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for non-dismantling and de-voiding support in a confined space, comprising a lower template (1), characterized in that: In the middle of the upper end of the lower template (1), several cushion blocks (2) are fixedly connected. The left end and the right end of the lower template (1) are jointly fixedly connected with a spraying device (5). The upper ends of several cushion blocks (2) are fixedly connected with several aerated concrete blocks (10). The upper ends of several aerated concrete blocks (10) are jointly fixedly connected with a connecting device (8). The left part of the upper end and the right part of the upper end of the connecting device (8) are both fixedly connected with a limiting device (9). An adjusting device (4) is movably connected between the two limiting devices (9). The upper end of the adjusting device (4) is fixedly connected with a bearing plate (7). A placing groove (6) is opened at the upper end of the bearing plate (7). Through grooves (3) are opened at the front part and the rear part of the upper end of the lower template (1); The connecting device (8) includes a partition plate (81). Several panels (83) are fixedly connected to the upper end of the partition plate (81). Several stiffening ribs (82) are fixedly connected to the upper end of the partition plate (81). A sealing plate (84) is jointly fixedly connected to the upper ends of the panels (83) and the stiffening ribs (82). The partition plate (81) is fixedly connected to the upper end of the aerated concrete block (10); The spraying device (5) includes a first water storage tank (51) and a second water storage tank (55). A spraying assembly (54) is jointly inserted and fixedly connected between the first water storage tank (51) and the second water storage tank (55). There are two spraying assemblies (54), and the two spraying assemblies (54) are distributed in a front-back mirror image. Water injection covers (52) are movably connected to the front part of the upper end of the first water storage tank (51) and the front part of the upper end of the second water storage tank (55). The first water storage tank (51) and the second water storage tank (55) are respectively fixedly connected to the left part of the upper end and the right part of the upper end of the lower template (1); The limiting device (9) includes a limiting plate (95). Second sliding grooves (93) are opened in the middle of the front end and the middle of the rear end of the limiting plate (95). A first sliding groove (91) is opened in the middle of the left end of the limiting plate (95). Limiting rods (94) are jointly fixedly connected between the upper plate wall and the lower plate wall of the limiting plate (95). There are two limiting rods (94), and the two limiting rods (94) are symmetrically distributed in the front-back direction. A plurality of screw holes (92) are opened on the right outer surface of the limiting rods (94). The limiting plate (95) is fixedly connected to the upper end of the sealing plate (84); The adjusting device (4) includes a position plate (42). There are two position plates (42). A load-bearing plate (43) is fixedly connected between the two position plates (42). Extension plates (44) are fixedly connected to both the front end and the rear end of the load-bearing plate (43). A second slider (47) is fixedly connected to the left end of the left position plate (42), and a second slider (47) is fixedly connected to the right end of the right position plate (42). First sliders (41) are fixedly connected to both the middle of the front end and the middle of the rear end of the position plate (42). Limit holes (46) are formed in both the front part and the rear part of the upper end of the position plate (42). Two installation grooves (48) are formed between the left end and the right end of the position plate (42). A fastening bolt (45) is threadedly connected in the installation groove (48). The left position plate (42) is movably connected in the left limiting plate (95).

2. The non-demolition voided support device for confined space according to claim 1, wherein: The spraying assembly (54) includes a long water pipe (541). A plurality of spray nozzles (546) are fixedly connected to the front end of the long water pipe (541). Spray holes (545) are formed at the front ends of the spray nozzles (546). Connecting pipes are fixedly connected to both the left end and the right end of the long water pipe (541). A pumping pump (542) is sleeved on the outer surface of each connecting pipe. Circular grooves (544) are formed at the left end and the right end of the connecting pipe (543). The right connecting pipe (543) is inserted and fixedly connected to the rear part of the left end of the second water storage tank (55), and the left connecting pipe (543) is inserted and fixedly connected to the rear part of the right end of the first water storage tank (51).

3. The non-demolition voided support device for confined spaces according to claim 1, characterized in that: The first slider (41) and the second slider (47) are both integrally formed with the position plate (42). The two first sliders (41) are respectively slidably connected in the two second sliding grooves (93) on the left side. The second slider (47) is slidably connected in the first sliding groove (91) on the left side. The position dimensions of the two fastening bolts (45) are adapted to the position dimensions of a plurality of screw holes (92).

4. A non-demolition voided support device for a confined space according to claim 2, characterized in that: The plurality of spray nozzles (546) are horizontally and equally spaced and distributed one by one, and the plurality of spray nozzles (546) are all conical structures. The long water pipe (541) is internally communicated with the first water storage tank (51) and the second water storage tank (55).

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