Bridge sand cylinder type temporary support
By installing rubber pads, drip grooves, and improved sand unloading devices on the bridge sand cylinder temporary supports, the problems of upper plate deformation, fine sand flowability, and loose bolt sealing were solved, achieving uniform support and smooth fine sand flow, thus improving construction efficiency and safety.
Patent Information
- Application Number
- CN202422737795.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing bridge sand cylinder temporary supports suffer from problems such as deformation and damage of the upper pad, insufficient fluidity of fine sand due to moisture absorption, and loosening of the bolt-sealed sand discharge holes, which affect construction efficiency and safety.
Rubber pads, drip grooves, and sand discharge devices are installed on the main body of the temporary support. The rubber pads ensure uniform support, the drip grooves prevent fine sand from getting damp, and the sand discharge devices use L-shaped steel and sealing plates instead of bolts to ensure smooth discharge of fine sand.
It prevents damage from uneven support and clumping of fine sand, improves construction efficiency and safety, ensures uniform flow of fine sand, avoids loosening of bolts, and enhances construction quality and safety.
Smart Images
Figure CN223633780U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge engineering technical field, concretely is a bridge sand cylinder formula temporary support. BACKGROUND
[0002] In the process of simply supported continuous construction of a bridge, temporary support beam body is often supported by temporary support adjusting device for structural stress system conversion, compared with other types of temporary support system, the cost of sand cylinder formula temporary support is lower, and it is easy to manufacture and recycle. The temporary support is usually composed of a sand cylinder, a base, a support frame, a sealing device and the like. By increasing or decreasing the amount of sand in the sand cylinder, the height of the beam section can be accurately adjusted to meet the design requirements. When the upper structure of the bridge is completed and the load needs to be transferred to the permanent support, the sand in the sand cylinder can be gradually released to slowly lower the beam section, realizing smooth transition from the temporary support to the permanent support.
[0003] Most of the existing temporary supports are processed by small factories. After the upper gasket of the steel-concrete support top cap is welded with the seamless steel pipe, the upper gasket will be deformed, resulting in partial void and stress concentration between the top surface of the temporary support and the bottom plate of the prefabricated beam after installation, causing uneven stress of the temporary support and damage to the surface concrete of the prefabricated beam bottom plate. Moreover, the existing temporary support does not consider the influence of fine sand filling on rainwater, resulting in the phenomenon that the fine sand cannot flow uniformly and smoothly from the sand cylinder during unloading. The reason is that the fine sand filling in the sand cylinder has been damp and clumped, which seriously affects the construction efficiency. At the same time, the existing temporary support generally uses bolts to block the sand unloading hole. During the process of fine sand flowing out, fine sand particles often remain between the threads, and the blocking bolts cannot be normally screwed in, resulting in problems such as bolt loosening and loss, which seriously affects the safety of bridge construction. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a bridge sand cylinder formula temporary support to solve the problems of deformation and damage of the upper gasket, insufficient fluidity of fine sand due to damp and loosening of the bolts for blocking the sand unloading hole in the existing bridge sand cylinder formula temporary support on the market.
[0005] To achieve the above object, the utility model provides the following technical scheme: a bridge sand barrel type temporary support, including temporary support main part and fill fine sand, be equipped with steel -concrete support top hat and adjustable base on the temporary support main part, and adjustable base installs the sand unloading device on, the steel -concrete support top hat top is equipped with upper tie plate, and the upper tie plate upper end is connected with rubber skin pad, the upper tie plate lower fixed with seamless steel pipe and drip groove, and the seamless steel pipe is in-poured with concrete, and the seamless steel pipe outside fixedly connected with the lifting ring, adjustable base bottom is equipped with lower tie plate, and the lower tie plate upper end is fixed with sand barrel, and the sand barrel is connected with the seamless steel pipe and is matched, sand barrel side is equipped with the sand unloading hole corresponding with the sand unloading device position, and the sand unloading device both sides are equipped with the L type steel fixed with sand barrel, and the L type steel between movable joint has the hole sealing plate corresponding with the sand unloading hole position.
[0006] Preferably, the upper tie plate and rubber skin pad are the same size, and the rubber skin pad has a thickness of 2 cm.
[0007] Preferably, the drip groove is a square frame structure, and the inner frame length of the drip groove is greater than the outer barrel diameter of the sand barrel.
[0008] Preferably, the sand barrel and the seamless steel pipe are gap fitted, and the lifting lug is welded and fixed outside the sand barrel.
[0009] Preferably, the sand barrel and the lower tie plate are uniformly spaced and welded with stiffening plates, and the stiffening plates are triangular structures.
[0010] Preferably, the hole sealing plate is an arc-shaped plate structure, and the handle plate is fixed on the outside of the hole sealing plate by welding.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] 1. The rubber skin pad is arranged on the top of the steel-concrete support top hat, which can ensure that the precast beam bottom plate is closely attached to the temporary support, prevent the support from being damaged due to uneven stress, and avoid damage to the surface of the beam bottom concrete.
[0013] 2. The drip groove is arranged at the bottom of the upper tie plate, which can effectively prevent rainwater, water vapor, etc. from entering the gap between the support top hat and the base sand barrel, causing the fine sand to be damp and clumped, ensuring that the fine sand is always in a dry and clean state, thereby ensuring that the fine sand can flow out of the sand unloading device uniformly and smoothly, and improving the construction efficiency.
[0014] 3. The sand unloading device of the bridge sand barrel type temporary support positions the hole sealing plate through the L-shaped steel, which effectively avoids the residual fine sand particles in the threads after the fine sand flows out, and improves the operability of the sealing after unloading. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1The utility model relates to a highest cross section drawing of bridge sand barrel type temporary support,
[0016] Figure 2 The utility model relates to a lowest cross section drawing of bridge sand barrel type temporary support,
[0017] Figure 3 The utility model relates to a water drip groove relative seamless steel pipe position structure schematic view of bridge sand barrel type temporary support,
[0018] Figure 4 The utility model relates to a sand unloading device relative sand barrel position structure schematic view of bridge sand barrel type temporary support,
[0019] Figure 5 The utility model relates to a steel concrete support top cap structure schematic view of bridge sand barrel type temporary support,
[0020] Figure 6 The utility model relates to an adjustable base structure schematic view of bridge sand barrel type temporary support,
[0021] Figure 7 The utility model relates to a hole sealing plate and handle plate connecting side view of bridge sand barrel type temporary support.
[0022] In the drawing: 1, temporary support main body; 2, steel concrete support top cap; 201, upper base plate; 202, seamless steel pipe; 203, concrete; 204, rubber skin pad; 205, water drip groove; 206, lifting ring; 3, adjustable base; 301, sand barrel; 302, lifting lug; 303, stiffened plate; 304, lower base plate; 305, sand unloading hole; 4, fill fine sand; 5, sand unloading device; 501, hole sealing plate; 502, handle plate; 503, L type steel. DETAILED DESCRIPTION
[0023] The technical schemes in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0024] Please refer to Figures 1-7The utility model provides a technical scheme: a bridge sand barrel type temporary support, including temporary support main body 1 and fill fine sand 4, be equipped with steel -concrete support top hat 2 and adjustable base 3 on temporary support main body 1, and adjustable base 3 is installed with unloading sand device 5 on it, steel -concrete support top hat 2 top is equipped with upper tie plate 201, and upper tie plate 201 upper end is connected with rubber skin pad 204, and upper tie plate 201 and rubber skin pad 204 are same in size, and rubber skin pad 204 thickness is 2cm, this structure makes temporary support main body 1 when supporting prefabricated beam bottom plate through upper tie plate 201, can be closely attached with prefabricated beam bottom plate by rubber skin pad 204, ensure that upper tie plate 201 is evenly stressed, prevent upper tie plate 201 from damaging, also avoid the damage of prefabricated beam bottom plate, upper tie plate 201 lower end is fixed with seamless steel pipe 202 and drip groove 205, and the concrete 203 is poured in seamless steel pipe 202, and the outside fixed connection of seamless steel pipe 202 is hung with ring 206, adjustable base 3 bottom is equipped with lower tie plate 304, and sand barrel 301 is fixed on lower tie plate 304 upper end, drip groove 205 is square frame structure, and the inner frame length of drip groove 205 is greater than the outer tube diameter of sand barrel 301, this structure can frame seamless steel pipe 202 through drip groove 205, when water flows down through drip groove 205 along upper tie plate 201 bottom, can change the flow direction of water, so that water does not flow into the inside of seamless steel pipe 202 through the weld gap of upper tie plate 201 and seamless steel pipe 202, avoid the bottom fine sand damp even soaking, thereby prevent the sand from caking and being difficult to discharge and cannot play the structure function, also can avoid rainwater, moisture etc. by the gap of seamless steel pipe 202 and sand barrel 301 into sand barrel 301 and cause fine sand to be damp and caked, ensure that fine sand is always in dry and clean state, improve construction efficiency, and sand barrel 301 and seamless steel pipe 202 are clamped together, the gap between sand barrel 301 and seamless steel pipe 202, and the lug 302 is welded and fixed on the outside of sand barrel 301, this structure can make sand barrel 301 and seamless steel pipe 202 can move mutually, thereby can adjust the support height of temporary support main body 1, the lug 302 makes sand barrel 301 easy to hoist and carry, sand barrel 301 side is provided with the sand hole 305 of unloading sand device 5 position corresponding, and the both sides of unloading sand device 5 are equipped with the L type steel 503 of sand barrel 301 fixed, and the stiffened plate 303 is evenly spaced and welded between sand barrel 301 and lower tie plate 304, and the stiffened plate 303 is triangular structure, this structure is connected and reinforced treatment to sand barrel 301 and lower tie plate 304 through stiffened plate 303, ensure the reliability of adjustable base 3 structure, and the hole sealing plate 501 of unloading sand hole 305 position corresponding is movably clamped between L type steel 503, the hole sealing plate 501 is arc plate structure, and the handle plate 502 is fixed on the outside of hole sealing plate 501 by welding, this structure lets hole sealing plate 501 can adhere sand barrel 301 outer wall, thereby can prevent fill fine sand 4 from leaking, the handle plate 502 is easy to open and close the processing of hole sealing plate 501.
[0025] Working principle: when using the bridge sand barrel type temporary support, first, the hole sealing plate 501 is clamped between the L-shaped steel 503, the hole sealing plate 501 is pushed by the handle plate 502 to seal the sand hole 305, and then the fine sand 4 is filled into the sand barrel 301, and then the steel concrete support top cap 2 is hoisted by the lifting ring 206, the seamless steel pipe 202 is inserted into the sand barrel 301, the concrete 203 is supported on the fine sand 4, the support height of the temporary support main body 1 is controlled by adjusting the amount of the fine sand 4, the adjustable base 3 is hoisted to the support position through the lifting lug 302, the upper pad plate 201 is tightly attached to the bottom plate of the prefabricated beam through the rubber pad 204, the lower pad plate 304 supports the temporary support main body 1, the stiffening plate 303 stably connects the sand barrel 301 and the lower pad plate 304, the water drip groove 205 is used to prevent the fine sand 4 from flowing due to the moisture caused by rain, and the construction effect is improved, so that a series of work is completed.
[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A bridge sand-tub temporary support comprising a temporary support body (1) and filled fine sand (4), characterized in that: The temporary support body (1) is provided with a steel-concrete support top cap (2) and an adjustable base (3), and the adjustable base (3) is provided with a sand unloading device (5), the top of the steel-concrete support top cap (2) is provided with an upper pad (201), the upper end of the upper pad (201) is connected with a rubber skin pad (204), the lower end of the upper pad (201) is fixed with a seamless steel pipe (202) and a drip groove (205), the seamless steel pipe (202) is poured with concrete (203), and the outer side of the seamless steel pipe (202) is fixedly connected with a lifting ring (206), the bottom of the adjustable base (3) is provided with a lower pad (304), the upper end of the lower pad (304) is fixed with a sand cylinder (301), the sand cylinder (301) is connected with the seamless steel pipe (202) in a clamped manner, the side of the sand cylinder (301) is provided with a sand unloading hole (305) corresponding to the position of the sand unloading device (5), the two sides of the sand unloading device (5) are provided with L-shaped steels (503) fixed with the sand cylinder (301), and the L-shaped steels (503) are movably connected with hole sealing plates (501) corresponding to the position of the sand unloading hole (305).
2. A sand-jack temporary bridge support according to claim 1, wherein: The upper pad (201) and the rubber skin pad (204) are the same size, and the thickness of the rubber skin pad (204) is 2cm.
3. A sand-jack temporary bridge support according to claim 1, wherein: The drip groove (205) is a square frame structure, and the inner frame side length of the drip groove (205) is greater than the outer cylinder diameter of the sand cylinder (301).
4. A sand-jack temporary bridge support according to claim 1, wherein: The sand cylinder (301) is connected with the seamless steel pipe (202) in a gap fit manner, and the outer side of the sand cylinder (301) is welded with a lifting lug (302).
5. A sand-jack temporary bridge support according to claim 1, wherein: The sand cylinder (301) and the lower pad (304) are uniformly and spacedly welded with stiffening plates (303), and the stiffening plates (303) are triangular structures.
6. A sand-jack temporary bridge support according to claim 1, characterized in that: The hole sealing plate (501) is an arc-shaped plate structure, and the outer side of the hole sealing plate (501) is welded with a handle plate (502).