Supporting device suitable for underground space concrete structure construction

Abstract

The utility model discloses a supporting device suitable for underground space concrete structure construction, belongs to the field of underground space construction, and solves the problem that the supporting height of an existing supporting device cannot be adjusted. The device comprises a plurality of supporting legs and a template and further comprises a lifting mechanism, the lifting mechanism comprises a fixed box and a plurality of lead screws, the lead screws are rotationally connected to the fixed box, the lower ends of the lead screws penetrate through the fixed box and are connected into the lead screws through threads in a one-to-one correspondence mode, a plurality of rotating rods are rotationally connected into the fixed box, and worms are fixed to the rotating rods. Turbines are fixed on the periphery of the lead screw, the turbines are meshed with the worms in a one-to-one correspondence mode, belt wheels are fixed on the rotating rods, the belt wheels are in transmission connection through a belt, one rotating rod is connected with a hand wheel, the hand wheel is located outside the fixing box, and the template is connected to the upper end of the lead screw. The height of the formwork can be adjusted through the lifting mechanism, the formwork can be adjusted to any position according to needs, and use is flexible.

Description

TECHNICAL FIELD

[0001] The utility model belongs to underground space construction field, concretely relates to a support device suitable for underground space concrete structure construction. BACKGROUND

[0002] The concrete structure of underground space is often large in volume, such as basement floor, underground continuous wall etc., in the process of mass concrete pouring, huge lateral pressure and vertical pressure will be produced, if the vertical pressure has no reliable support device, the formwork can be deformed, expand and even collapse, seriously affect the quality of concrete structure and construction safety, therefore a support device suitable for underground space concrete structure construction is needed.

[0003] Although the existing concrete pouring support device can support the concrete, it cannot adjust the height of the support device according to the concrete structure of different thickness in the using process, cannot make the formwork match the thickness of the concrete structure, can cause the formwork to be deformed in the process of concrete pouring due to the inability to withstand the pressure of the concrete, reduces the construction efficiency, and cannot provide secondary support to the bottom of the support device, cannot make the pressure of the support device evenly transmitted to the ground, can be inclined or deformed in the process of pouring support. SUMMARY

[0004] The utility model aims at providing a support device suitable for underground space concrete structure construction to solve the problem of unadjustable support height of the existing support device.

[0005] The technical scheme of the utility model is: a support device suitable for underground space concrete structure construction, including multiple support legs and formwork, further including lifting mechanism, the lifting mechanism includes fixed box and multiple lead screws, the lead screw is rotatably connected on the fixed box, the lower end of the lead screw penetrates the fixed box and is correspondingly connected in the lead screw through the screw thread, multiple rotating rods are rotatably connected in the fixed box, the rotating rod is fixed with worm, the periphery of the lead screw is fixed with turbine, the turbine is correspondingly meshed and connected with the worm, the rotating rod is fixed with pulley, the pulleys are driven and connected through the belt, one of the rotating rods is connected with hand wheel, the hand wheel is located outside the fixed box, the formwork is connected on the upper end of the lead screw.

[0006] As the further improvement of the utility model, the support leg and the lead screw are all provided with four, the rotating rod is provided with two, and two worms are arranged on each rotating rod.

[0007] As a further improvement of the utility model, the utility model also comprises a supporting mechanism, the supporting mechanism comprises a clamping ring and a plurality of supporting legs, the clamping ring is around the periphery of the supporting leg, the clamping ring has an opening, the end of the opening is provided with a threaded groove, a screw is arranged in the threaded groove to fasten the clamping ring, a plurality of first supporting plates are rotationally connected to the periphery of the clamping ring, a plurality of second supporting plates are rotationally connected to the periphery of the supporting leg, the first supporting plate and the second supporting plate are one-to-one corresponding, the first supporting plate and the second supporting plate are located in the same vertical plane, the first supporting plate is located above the second supporting plate, and the other ends of the first supporting plate and the second supporting plate are rotationally connected to the supporting leg respectively.

[0008] As a further improvement of the utility model, a damping mechanism is arranged between the lead screw and the formwork, the damping mechanism comprises a damping frame, a plurality of sleeve rods and a plurality of damping rods, the sleeve rod is located between the damping frame and the formwork, the sleeve rod is composed of an outer sleeve rod and an inner sleeve rod, and the damping rod is installed in the sleeve rod in one-to-one correspondence.

[0009] As a further improvement of the utility model, a damping spring is further arranged in the sleeve rod and surrounds the periphery of the damping rod.

[0010] The utility model has the advantages of:

[0011] 1. The formwork in the utility model can be adjusted in height through the lifting mechanism, the lifting mechanism is easy to operate, only needs to rotate the hand wheel, can be moved up and down through the cooperation transmission of the worm gear and the threaded action of the lead screw and the supporting leg, thereby driving the formwork to move up and down, can be adjusted to any position according to the need, and is flexible to use, the rotating rod is connected in transmission through the belt and the belt pulley, rotates synchronously, the lead screw is synchronously lifted, and the stable movement of the formwork is guaranteed.

[0012] 2. The supporting mechanism is arranged on the supporting leg, secondary support can be formed around the supporting leg, the pressure of the supporting device can be evenly transmitted to the ground, the stability of the supporting device is increased, and inclination or deformation does not occur in the pouring supporting process. DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the structure schematic diagram of the lifting mechanism in the utility model;

[0015] Figure 3 It is the structure schematic diagram of the supporting mechanism in the utility model;

[0016] Figure 4 is Figure 1 A sectional view of the A part in the figure.

[0017] In the figure: 1, support leg; 2, support mechanism; 21, clamping ring; 23, first support plate; 25, second support plate; 27, support foot; 28, threaded groove; 29, screw; 3, lifting mechanism; 31, screw rod; 32, worm gear; 33, rotating rod; 34, worm; 36, fixed box; 37, belt pulley; 38, belt; 39, hand wheel; 4, damping mechanism; 41, damping frame; 42, outer sleeve rod; 43, inner sleeve rod; 44, damping spring; 45, damping rod; 5, template. DETAILED DESCRIPTION

[0018] The utility model will be described in detail below in combination with the drawings.

[0019] As Figures 1-4 shown in the figure, a support device suitable for underground space concrete structure construction, including multiple support legs 1 and templates 5, still including lifting mechanism 3, lifting mechanism 3 includes fixed box 36 and multiple screw rods 31, screw rod 31 is rotatably connected on fixed box 36, and the lower end of screw rod 31 penetrates fixed box 36 and is correspondingly connected in screw thread in screw rod 31 inside, and multiple rotating rods 33 are rotatably connected in fixed box 36, and worm 34 is fixed on rotating rod 33, and worm gear 32 is fixed on the periphery of screw rod 31, and worm gear 32 is correspondingly meshed with worm 34, and belt pulley 37 is fixed on rotating rod 33, and belt pulley 37 is drivenly connected by belt 38, and one of rotating rods 33 is connected with hand wheel 39, and hand wheel 39 is located outside fixed box 36, and template 5 is connected on the upper end of screw rod 31.

[0020] Support leg 1 and screw rod 31 are all equipped with 4, and rotating rod 33 is equipped with 2, and 2 worm 34 are arranged on each rotating rod 33.

[0021] Still including support mechanism 2, support mechanism 2 includes clamping ring 21 and multiple support feet 27, clamping ring 21 surrounds the periphery of support leg 1, clamping ring 21 has an opening, and the end of the opening is provided with threaded groove 28, screw 29 is arranged in threaded groove 28 to fasten clamping ring 21, multiple first support plates 23 are rotatably connected on the periphery of clamping ring 21, multiple second support plates 25 are connected on the periphery of support leg 1, first support plate 23 and second support plate 25 are correspondingly arranged, first support plate 23 and second support plate 25 are located in the same vertical plane, first support plate 23 is located above second support plate 25, and the other end of first support plate 23 and second support plate 25 is rotatably connected on support foot 27 respectively, and first support plate 23, second support plate 25 and support foot 27 are correspondingly arranged.

[0022] A damping mechanism 4 is arranged between the lead screw 31 and the formwork 5, and the damping mechanism 4 comprises a damping frame 41, a plurality of sleeve rods and a plurality of damping rods 45, the sleeve rods are arranged between the damping frame 41 and the formwork 5, the sleeve rods are composed of an outer sleeve rod 42 and an inner sleeve rod 43 which are sleeved with each other, and the damping rods 45 are installed in the sleeve rods one by one.

[0023] A damping spring 44 is further arranged in the sleeve rod and surrounds the damping rod 45.

[0024] In use, first, the device is placed at a position where the formwork 5 needs to be supported in the underground space, then the clamping ring 21 on each support leg 1 is slid downward respectively, so that the supporting leg 27 is tightly abutted on the ground under the action of the first support plate 23 and the second support plate 25, and then the clamping ring 21 is fastened through the screw 29. The supporting leg 27 is supported around the support leg 1 and forms secondary support around the support leg 1. Then, the support height of the formwork 5 is adjusted according to the concrete structure of different thicknesses, the hand wheel 39 is rotated, the rotating rod 33 is synchronously rotated under the action of the belt 38, so as to synchronously rotate the worm 34 and the turbine 32, and synchronously rotate the lead screw 31, so that the lead screw 31 can be moved upward or downward under the thread cooperation of the lead screw 31 and the support leg 1, thereby stably moving the formwork 5 until the formwork 5 is adjusted to the appropriate height.

[0025] During the concrete pouring process, the damping rod 45 and the damping spring 44 can effectively absorb the impact from above the formwork 5, and damp and protect the formwork 5 and the whole support device.

[0026] After the construction is completed, the screw 29 is loosened, the clamping ring 21 is moved upward, the supporting leg 27 is folded and attached to the side of the support leg 1, and the support device is convenient to move.

Claims

1. A support device suitable for use in the construction of concrete structures in underground spaces, comprising a plurality of support legs (1) and a formwork (5), characterised in that: Further comprising a lifting mechanism (3), the lifting mechanism (3) comprises a fixed box (36) and a plurality of lead screws (31), the lead screws (31) are rotatably connected to the fixed box (36), the lower ends of the lead screws (31) penetrate the fixed box (36) and are correspondingly connected in the lead screws (31) by threads, a plurality of rotating rods (33) are rotatably connected in the fixed box (36), the rotating rods (33) are fixed with worms (34), the periphery of the lead screws (31) is fixed with turbines (32), the turbines (32) are correspondingly meshed with the worms (34), the rotating rods (33) are fixed with belt pulleys (37), the belt pulleys (37) are drivingly connected by a belt (38), one of the rotating rods (33) is connected with a hand wheel (39), the hand wheel (39) is located outside the fixed box (36), and the template (5) is connected to the upper end of the lead screw (31).

2. The support device for construction of concrete structures in underground spaces according to claim 1, characterized in that: The support legs (1) and the lead screws (31) are each provided with four, and the rotating rods (33) are provided with two, and each rotating rod (33) is provided with two worms (34).

3. The support device for construction of concrete structures in underground spaces according to claim 1 or 2, characterized in that: Further comprising a supporting mechanism (2), the supporting mechanism (2) comprises a clamping ring (21) and a plurality of supporting legs (27), the clamping ring (21) surrounds the periphery of the support leg (1), the clamping ring (21) has an opening, the end of the opening is provided with a threaded groove (28), the threaded groove (28) is provided with a screw (29) to fasten the clamping ring (21), a plurality of first supporting plates (23) are rotatably connected to the periphery of the clamping ring (21), a plurality of second supporting plates (25) are drivingly connected to the periphery of the support leg (1), the first supporting plates (23) and the second supporting plates (25) are correspondingly arranged, the first supporting plates (23) and the second supporting plates (25) are located in the same vertical plane, the first supporting plates (23) are located above the second supporting plates (25), and the other ends of the first supporting plates (23) and the second supporting plates (25) are rotatably connected to the supporting legs (27), respectively, and the first supporting plates (23), the second supporting plates (25) and the supporting legs (27) are correspondingly arranged.

4. The support device for construction of concrete structures in underground spaces according to claim 3, characterized in that: A damping mechanism (4) is arranged between the lead screw (31) and the template (5), the damping mechanism (4) comprises a damping frame (41), a plurality of sleeve rods and a plurality of damping rods (45), the sleeve rods are arranged between the damping frame (41) and the template (5), the sleeve rods are composed of an outer sleeve rod (42) and an inner sleeve rod (43) which are arranged in each other, and the damping rods (45) are correspondingly arranged in the sleeve rods.

5. The support device for use in the construction of concrete structures in underground spaces according to claim 4, characterized in that: A damping spring (44) is further arranged in the sleeve rod and surrounds the periphery of the damping rod (45).

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