Funnel for pouring cast-in-place sleeve shoe

Abstract

The utility model discloses a cast-in-place sleeve shoe pouring funnel, which is characterized in that the integral edges of two groups of U-shaped funnels adopt U-shaped structures, and U-shaped openings of the two groups of U-shaped funnels can be oppositely connected through a riveting joint, so that the U-shaped funnels can form a complete surrounding structure on the edge of a supporting block; the funnel wall of the U-shaped funnel adopts an inclined surface with a big-end-up opening, and the lower opening of the U-shaped funnel is formed in the periphery above the cavity between the supporting block and the ballast bed, so that a sleeve boot can be formed in the cavity by a material poured through the U-shaped funnel. According to the technical scheme of the utility model, the working procedure connection and the number of machines and tools on the track are reduced, the construction efficiency is improved, the pouring speed of the cast-in-situ sleeve shoe is accelerated, the problems of track bed pollution, working procedure increase, irregular sleeve shoe forming and the like in the traditional method are solved, and the device is quick to disassemble and assemble, practical, reliable, economical in cost, high in applicability and sustainable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of building components, in particular to a funnel for pouring cast-in-place boots. Background Art

[0002] Ballastless tracks are widely used in passenger and freight railway tunnels in my country, including elastic support block type, double block type, long sleeper embedded type and plate type. In addition, ballastless track structures are used in subway construction in major cities to ease traffic pressure in cities. The track structure in the tunnel is inconvenient to maintain and repair. Considering the reduction of maintenance and repair workload in the tunnel and the improvement of line smoothness, it is suitable to lay ballastless tracks with less maintenance and repair in long tunnels. Generally, elastic support block ballastless tracks are used in tunnels with a length of more than 1km on ordinary passenger and freight railways. This structure is safe and reliable, with good vibration reduction performance and better maintainability than other types of ballastless tracks. Elastic support block cast-in-place concrete ballast bed is a ballastless track structure set up in special areas. It consists of concrete ballast bed, prefabricated elastic boots and pads, prefabricated support blocks, fasteners and rails from bottom to top. Prefabricated elastic boots, pads and support blocks are key structures that connect the upper and lower parts and undertake vibration reduction, force transmission and other functions. However, during the service life of the track structure, it is subjected to the influence of train cyclic dynamic loads, temperature loads, and rain erosion. The elastic boots are deformed, cracked, and damaged. The vibration impact is enhanced under the train load, resulting in a reduction or loss of the excellent vibration reduction effect, and causing track unevenness and varying degrees of damage to the roadbed. It is necessary to ensure the safety of the track structure by replacing the elastic support blocks.

[0003] Since maintenance work can only be carried out on operating railway lines during the window time, the window time is limited (generally only 3-4 hours), and due to the limited conditions for accessing the railway, it is only possible to access the railway through small access doors, and large equipment cannot be put into operation; in addition, the tunnel is long, and to reach the track maintenance work site, only one end of the tunnel can be entered and exited. In addition, there are many toolings, which will result in a lot of time being wasted on going back and forth to the work site and moving various toolings up and down, which will affect the efficiency of maintenance and repair work on the operating railway. When replacing the overshoes using the cast-in-place method, the ballast bed is polluted, and the ballast bed needs to be polished and cleaned later, which increases the workload. Therefore, how to quickly and safely replace and repair damaged overshoes of elastic support blocks during the window time is a problem that needs to be solved urgently in this field.

[0004] In the prior art, the paper "Research and Practice on Replacing Elastic Support Blocks in Urban Rail" removes and replaces the damaged elastic support blocks as a whole, but is unable to repair the gap between the overshoe and the track bed concrete.

[0005] The papers "Research on the Rectification Plan for the Excessive Cant of the Elastic Support Block Ballastless Track in Tunnels" and "Analysis and Rectification of the Damage of the Elastic Support Block Ballastless Track on the Passenger and Freight Co - line Railway" remove and replace the damaged elastic support blocks as a whole, and reinject high - strength mortar or high - strength resin into the gap between the rubber boot and the ballast concrete for repair. During the maintenance window, there are many processes. Moreover, the gap between the rubber boot and the ballast slab is small, and it is difficult to fill the high - strength mortar or high - strength resin fully to ensure the quality.

[0006] The invention patent "A Rectification Method for the Failure of Rubber Boots CN201510631495.2" removes and replaces the damaged elastic support blocks as a whole. First, epoxy resin is applied to the surface of the support block and the ballast concrete. The rubber boot is pasted to the ballast concrete and the support block through the epoxy resin layer to repair the separation joint. However, for a large separation joint, this method may cause damage and deformation of the rubber boot or is prone to generate separation joints. Utility Model Content

[0007] In view of the above problems, the present utility model provides a funnel for casting rubber boots. By setting an enclosing funnel around the support block on the ballast bed and directly pouring the rubber boot material into it, a rubber boot can be formed in the cavity formed between the support block and the ballast bed. The construction method is simple, which can simplify and centralize the construction processes carried out within one maintenance window, thereby reducing the process connection and the number of construction tools on the track, improving the construction efficiency. At the same time, it speeds up the pouring speed of the cast - in - place rubber boot, assists in the shaping after the rubber boot pouring is completed, solves the problems of ballast pollution, increased processes, irregular shaping of rubber boots in the traditional method, and the device is quick to disassemble and assemble, practical and reliable, cost - effective, highly applicable, and can be used continuously.

[0008] To achieve the above object, the present utility model provides a funnel for casting rubber boots in situ, including: two groups of U - shaped funnels and riveting joints;

[0009] The overall edges of the two groups of U - shaped funnels adopt a U - shaped structure, and the U - shaped openings of the two groups of U - shaped funnels can be connected relatively through the riveting joints, enabling them to form a complete enclosing structure around the edge of the support block;

[0010] The funnel wall of the U - shaped funnel adopts an inclined surface with a large upper opening and a small lower opening. The lower opening of the U - shaped funnel is arranged around the upper part of the cavity between the support block and the ballast bed, so that the material poured through the U - shaped funnel can form a rubber boot in the cavity.

[0011] In the above technical solution, preferably, grooves are provided at the upper part of the U - shaped opening ends of the two groups of U - shaped funnels, enabling the two groups of U - shaped funnels to pass through under the rail.

[0012] In the above technical solution, preferably, the riveted joint includes a rivet rod and a rivet. The rivet rods are respectively arranged at the U-shaped opening ends of the U-shaped funnels. There are rivet holes on the rivet rods. After two groups of the U-shaped funnels are spliced, the rivet passes through the rivet holes on the two connected rivet rods to achieve riveting.

[0013] In the above technical solution, preferably, the U-shaped funnel is made of stainless steel or light hard material, and the thickness is 2 mm to 4 mm.

[0014] In the above technical solution, preferably, the funnel for cast-in-place boot perfusion further includes an elastic gasket. The elastic gasket is arranged at the bottom of the U-shaped funnel. The elastic gasket has the ability of elastic deformation and plasticity at the same time.

[0015] In the above technical solution, preferably, the elastic gasket is fixedly connected to the bottom of the U-shaped funnel by adhesive bonding.

[0016] In the above technical solution, preferably, the width of the elastic gasket is greater than or equal to 15 mm, and the thickness is 8 mm to 15 mm.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging an enclosing funnel around the support block on the roadbed and directly pouring the boot material into it, a boot can be formed in the cavity formed between the support block and the roadbed. The construction method is simple, which can simplify and centralize the construction procedures carried out within one skylight, reduce the process connection and the number of on-track tools, improve the construction efficiency, and at the same time speed up the pouring speed of the cast-in-place boot, assist the boot to be formed after pouring, solve the problems of roadbed pollution, increased processes, irregular boot forming, etc. of the traditional method, and the device is quick to disassemble and assemble, practical and reliable, cost-effective, highly applicable, and can be used continuously. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a funnel for cast-in-place boot perfusion disclosed in an embodiment of the present utility model;

[0019] Figure 2 It is a schematic installation diagram of a funnel for cast-in-place boot perfusion disclosed in an embodiment of the present utility model.

[0020] In the figure, the corresponding relationship between each component and the reference numeral is as follows:

[0021] 1. Support block, 2. Roadbed, 3-1. U-shaped funnel, 3-2. Riveted joint, 3-3. Elastic gasket. Detailed Embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0024] As Figure 1 and Figure 2 shown, a funnel for cast-in-place boot grouting according to the present utility model includes: two groups of U-shaped funnels 3-1 and riveting joints 3-2;

[0025] The overall edges of the two groups of U-shaped funnels 3-1 adopt a U-shaped structure, and the U-shaped openings of the two groups of U-shaped funnels 3-1 can be connected relatively through the riveting joints 3-2 so that a complete surrounding structure can be formed around the edge of the support block 1;

[0026] The funnel wall of the U-shaped funnel 3-1 adopts an inclined surface with a larger upper opening and a smaller lower opening. The lower opening of the U-shaped funnel 3-1 is arranged around the upper part of the cavity between the support block 1 and the roadbed 2, so that the material grouted through the U-shaped funnel 3-1 can form a boot in the cavity.

[0027] In this embodiment, by arranging an encircling funnel around the support block 1 on the roadbed 2 and directly grouting the boot material into it, a boot can be formed in the cavity formed between the support block 1 and the roadbed 2. The construction method is simple, which can simplify and centralize the construction procedures carried out within a single skylight, reduce the process connection and the number of on-track tools and equipment, improve the construction efficiency, and at the same time speed up the grouting speed of the cast-in-place boot, assist the boot to be formed after grouting, and solve the problems of roadbed 2 pollution, process increase, irregular boot forming, etc. in the traditional method. Moreover, the device is quick to disassemble and assemble, practical and reliable, cost-effective, and highly applicable, and can be continuously used.

[0028] Specifically, in the implementation process, the usage method of the above-mentioned funnel for cast-in-place boot grouting includes:

[0029] Track lowering, support block 1 in place → Installation of fasteners, track fine adjustment → Installation of funnels around the support block 1 → Grouting of liquid boot material → Removal of funnels → Restoration of the line.

[0030] During the implementation process, after the rail is in place, an internal cavity is formed between the support block 1 and the concrete surface of the roadbed 2. Through the funnel, when the cast-in-place boot material is poured, the boot material smoothly enters the cavity between the support block 1 and the roadbed 2 along the inclined surface of the funnel wall, and an edge boss of a certain size is formed on the surface of the roadbed 2.

[0031] In the above-mentioned embodiment, preferably, grooves are provided at the upper parts of the U-shaped opening ends of the two groups of U-shaped funnels 3-1, so that the two groups of U-shaped funnels 3-1 can pass through under the rail. Simply put, empty slots are reserved for the rail on the two groups of U-shaped funnels 3-1. When installing the U-shaped funnels 3-1 around the support block 1, it can avoid being blocked by the rail and unable to be installed smoothly.

[0032] In the above-mentioned embodiment, preferably, the riveted joint 3-2 includes a rivet rod and a rivet. The rivet rods are respectively arranged at the U-shaped opening ends of the U-shaped funnels 3-1, and rivet holes are provided on the rivet rods. After the two groups of U-shaped funnels 3-1 are spliced, the rivet passes through the rivet holes on the two connected rivet rods to achieve riveting. Specifically, on the two groups of U-shaped funnels 3-1, rivet rods are installed at both ends of the U-shaped opening end. In this way, when the riveting is completed after splicing, a stable surrounding structure can be formed by the two groups of U-shaped funnels 3-1. At the same time, when disassembling, the rivet is removed from the rivet hole, and the two groups of U-shaped funnels 3-1 can be pulled out from under the rail to achieve disassembly.

[0033] In the above-mentioned embodiment, preferably, the U-shaped funnel 3-1 is made of stainless steel or light hard material, and the thickness is 2 mm to 4 mm, which is convenient for the disassembly and installation process of the funnel and the transportation process while ensuring the strength.

[0034] In the above-mentioned embodiment, preferably, the funnel for cast-in-place boot perfusion further includes an elastic gasket strip 3-3. The elastic gasket strip 3-3 is arranged at the bottom of the U-shaped funnel 3-1. The elastic gasket strip 3-3 has the ability of elastic deformation and plasticity at the same time, so that the U-shaped funnel 3-1 can be applied to the uneven roadbed 2, so that the U-shaped funnel 3-1 can be stably supported on the surface of the roadbed 2.

[0035] In the above-mentioned embodiment, preferably, the elastic gasket strip 3-3 is fixedly connected to the bottom of the U-shaped funnel 3-1 by adhesive bonding. The operation process of the adhesive bonding method is simple and convenient, and at the same time, it can also ensure the connection stability between the elastic gasket strip 3-3 and the bottom of the U-shaped funnel 3-1.

[0036] In the above-mentioned embodiment, preferably, the width of the elastic gasket strip 3-3 is greater than or equal to 15 mm, and the thickness is 8 mm to 15 mm.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A funnel for cast-in-place boot perfusion, characterized in that, Including: Two groups of U-shaped funnels and riveting joints; The overall edges of the two groups of U-shaped funnels adopt a U-shaped structure, and the U-shaped openings of the two groups of U-shaped funnels can be relatively connected through the riveting joints so that they can form a complete surrounding structure for the edge of the support block; The funnel wall of the U-shaped funnel adopts an inclined surface with a larger upper opening and a smaller lower opening. The lower opening of the U-shaped funnel is arranged around the upper part of the cavity between the support block and the roadbed, so that the material poured through the U-shaped funnel can form a boot in the cavity.

2. The funnel for cast-in-place boot pouring according to claim 1, characterized in that, Grooves are provided at the upper parts of the U-shaped opening ends of the two groups of U-shaped funnels, so that the two groups of U-shaped funnels can pass through below the rail.

3. The funnel for cast-in-place boot pouring according to claim 1, characterized in that, The riveting joint includes a riveting rod and a rivet. The riveting rods are respectively arranged at the U-shaped opening ends of the U-shaped funnels. Rivet holes are provided on the riveting rods. After the two groups of U-shaped funnels are spliced, the rivet passes through the rivet holes on the two connected riveting rods to achieve riveting.

4. The funnel for cast-in-place boot pouring according to claim 1, characterized in that, The U-shaped funnel is made of stainless steel or light hard material, and the thickness is 2 mm to 4 mm.

5. The in-situ cast boot perfusion funnel according to any one of claims 1 to 4, characterized in that An elastic gasket is further included. The elastic gasket is arranged at the bottom of the U-shaped funnel. The elastic gasket has elastic deformation ability and plasticity at the same time.

6. The funnel for cast-in-place boot pouring according to claim 5, characterized in that, The elastic gasket is fixedly connected to the bottom of the U-shaped funnel by adhesive bonding.

7. The funnel for cast-in-place boot pouring according to claim 6, characterized in that, The width of the elastic gasket is greater than or equal to 15 mm, and the thickness is 8 mm to 15 mm.

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