A railway subgrade under pipe jacking convenient to assemble

Abstract

The utility model relates to railway roadbed under pipe jacking construction technology field, concretely disclose a railway roadbed under pipe jacking convenient to assemble, include: sleeper stone, the upper surface fixedly connected with rail of sleeper stone, the side surface swing joint has under pipe jacking of rail, the both ends swing joint has connecting barrel group of under pipe jacking, the inside of connecting barrel group is provided with sealing assembly, and the clamping tightness of sealing assembly is adjusted by connecting barrel group rotation, and the surface connection of under pipe jacking is clamped after sealing assembly adjustment), by means of the rotary connection of fixed seat and hexagonal head, cooperate the transmission of screw rod, connecting ring, drive sealing assembly lifting through the tool rotation hexagonal head, realize the quick clamping or loosening of under pipe jacking connection. The location of guide ring to screw rod ensures that the adjustment process is stable and does not jam, and it can be operated without complex tools, which significantly shortens the assembly time compared with the traditional bolt fastening method, and meets the efficient construction needs of railway engineering.

Description

Technical Field

[0001] This utility model relates to the field of railway subgrade pipe jacking construction technology, specifically a railway subgrade pipe jacking method that is easy to assemble. Background Technology

[0002] Railway subgrade pipe jacking is an underground pipeline construction technology and related equipment used in railway engineering. It is mainly used to lay various pipelines (such as water supply and drainage pipes, cable protection pipes, etc.) under railway subgrades. Its core is to use specific construction techniques and pipeline structures to lay pipelines under the subgrade without affecting the normal operation of the railway or excavating and damaging the subgrade.

[0003] Currently, the connection of some railway subgrade jacking pipes relies on flanges and multiple bolts for fastening. However, when using flange connections, the bolt holes must be aligned one by one and the bolts tightened individually. This is not only cumbersome but also restricts tool movement in the confined space beneath the subgrade, resulting in low connection efficiency. To address this, we propose a railway subgrade jacking pipe that is easy to assemble. Utility Model Content

[0004] The purpose of this utility model is to provide a railway subgrade jacking pipe that is easy to assemble, in order to solve the problem mentioned in the background art that the connection of some existing railway subgrade jacking pipes mostly relies on flanges and multiple bolts for fastening. When using flange connection, it is necessary to align the bolt holes one by one and tighten the bolts one by one. Not only are the operation steps cumbersome, but the tools are also limited in the narrow space under the subgrade, resulting in low connection efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a railway subgrade jacking pipe that is easy to assemble, comprising: a sleeper stone, a rail fixedly connected to the upper surface of the sleeper stone, a jacking pipe movably connected to the side surface of the rail, a connecting cylinder assembly movably connected to both ends of the jacking pipe, a sealing component being provided inside the connecting cylinder assembly, and the clamping tightness of the sealing component being adjusted by rotating the connecting cylinder assembly, and the sealing component being clamped at the surface connection of the jacking pipe after adjustment.

[0006] The connecting sleeve assembly includes a sleeve that fits onto the connection between two sets of lower jacking pipes. The sleeve has grooves extending through both ends. A fixed seat is fixedly connected to the upper surface of the sleeve. A hexagonal rotating head is rotatably connected inside the fixed seat. A screw is fixedly connected to the bottom of the hexagonal rotating head. A connecting ring is movably connected to the bottom of the screw.

[0007] The fixed seat passes through the inner and outer ends of the connecting sleeve, and a guide ring is fixedly connected inside the fixed seat. The guide ring is movably connected to the top outer surface of the screw.

[0008] The sealing assembly includes a sealing gasket, which is fixedly connected to the bottom of the connecting ring and movably connected to the upper part of the sleeve. The sealing gasket is arc-shaped, and an outer sealing block is fixedly connected to the bottom of the sealing gasket. A fixed gasket is movably connected to the bottom of the sealing gasket and is fixedly connected to the lower part of the sleeve.

[0009] The fixed washer has a sealing block groove on the side facing the sealing washer. The outer sealing block is movably connected inside the sealing block groove. A side sealing ring is movably connected to the side surface of the connection between the sealing washer and the fixed washer. The side sealing rings are fixedly connected in two sets to the inner walls of both ends of the sleeve. The side sealing rings are misaligned with the sealing washer and the fixed washer.

[0010] The connecting rings are arranged in two sets at the top of the sleeve, and the sealing components are arranged in two sets at the bottom of the two sets of connecting rings. The two sets of sealing components are movably connected to both sides of the connection point of the two sets of lower jacking pipes.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. In use, this utility model utilizes the rotational connection between the fixed base and the hexagonal rotating head, along with the transmission of the screw and connecting ring. Rotating the hexagonal rotating head with a tool drives the sealing assembly to rise and fall, achieving rapid clamping or loosening of the lower jacking pipe connection. The guide ring's limiting effect on the screw ensures stable and jam-free adjustment, and operation requires no complex tools. Compared to traditional bolt fastening methods, it significantly shortens assembly time, meeting the high-efficiency construction needs of railway engineering.

[0013] 2. In use, this utility model utilizes the cooperation of sealing gaskets and fixing gaskets to form a radial seal by embedding the outer sealing block into the sealing block groove, while the side sealing ring is staggered with both to form an axial seal. The double sealing structure effectively prevents fluid leakage. The clamping force of the two sets of sealing components can be adjusted by connecting rings, which can ensure a tight seal and avoid excessive pressure deformation of the pipeline, thus meeting the long-term sealing requirements in complex roadbed environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the external appearance of the connecting cylinder assembly of this utility model;

[0016] Figure 3 This is a side sectional view of the connecting cylinder assembly of this utility model;

[0017] Figure 4 This is a front sectional view of the connecting cylinder assembly and sealing component of this utility model.

[0018] In the diagram: 1. Sleeper; 2. Rail; 3. Lower jacking pipe; 4. Connecting cylinder assembly; 41. Sleeve; 42. Sleeve groove; 43. Fixing seat; 44. Hexagonal swivel head; 45. Screw; 46. Connecting ring; 47. Guide ring; 5. Sealing assembly; 51. Sealing gasket; 52. Outer sealing block; 53. Fixing gasket; 54. Sealing block groove; 55. Side sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a railway subgrade jacking pipe that is easy to assemble, comprising: a sleeper 1, a rail 2 fixedly connected to the upper surface of the sleeper 1, a jacking pipe 3 movably connected to the side surface of the rail 2, a connecting cylinder assembly 4 movably connected to both ends of the jacking pipe 3, a sealing component 5 provided inside the connecting cylinder assembly 4, the connecting cylinder assembly 4 rotating to adjust the clamping tightness of the sealing component 5, and the sealing component 5 clamping at the surface connection of the jacking pipe 3 after adjustment.

[0021] In use, the sealing assembly 5 is raised and lowered by rotating the hexagonal head 44 through the rotating connection of the fixed base 43 and the hexagonal head 44, along with the transmission of the screw 45 and the connecting ring 46. This allows for quick clamping or loosening of the connection point of the lower jacking pipe 3. The guide ring 47 limits the screw 45, ensuring a stable and jam-free adjustment process. Furthermore, it can be operated without complex tools, significantly shortening assembly time compared to traditional bolt fastening methods and meeting the high-efficiency construction needs of railway engineering.

[0022] The connecting sleeve assembly 4 includes a sleeve 41, which is fitted onto the connection of the two sets of lower jacking pipes 3. The two ends of the sleeve 41 are provided with sleeve grooves 42. A fixed seat 43 is fixedly connected to the upper surface of the sleeve 41. A hexagonal head 44 is rotatably connected inside the fixed seat 43. A screw 45 is fixedly connected to the bottom of the hexagonal head 44. A connecting ring 46 is movably connected to the bottom of the screw 45.

[0023] The fixed seat 43 passes through the inner and outer ends of the connecting sleeve 41. A guide ring 47 is fixedly connected inside the fixed seat 43. The guide ring 47 is movably connected to the top outer surface of the screw 45.

[0024] The sealing assembly 5 includes a sealing gasket 51, which is fixedly connected to the bottom of the connecting ring 46 and movably connected to the upper interior of the sleeve 41. The sealing gasket 51 is arc-shaped, and an outer sealing block 52 is fixedly connected to the bottom of the sealing gasket 51. A fixed gasket 53 is movably connected to the bottom of the sealing gasket 51 and is fixedly connected to the lower interior of the sleeve 41. A sealing block groove 54 is formed on the side of the fixed gasket 53 facing the sealing gasket 51, and the outer sealing block 52 is movably connected inside the sealing block groove 54. A side sealing ring 55 is movably connected to the side surface at the connection between the sealing gasket 51 and the fixed gasket 53. The side sealing rings 55 are fixedly connected in two sets to the inner walls of both ends of the sleeve 41, and are staggered with the sealing gasket 51 and the fixed gasket 53. Two sets of connecting rings 46 are arranged on the top of the sleeve 41, and two sets of sealing components 5 are arranged at the bottom of the two sets of connecting rings 46. The two sets of sealing components 5 are movably connected to both sides of the connection point of the two sets of lower top pipes 3.

[0025] In use, the sleeper 1 serves as the core support of the track foundation, while the rail 2, fixed to its upper surface, provides a stable track for train passage. The lower jacking pipe 3 on the side surface of the rail 2 is responsible for laying pipelines beneath the roadbed. The connection quality of the two sets of lower jacking pipes 3 directly affects the safety of the roadbed pipeline system. The synergistic effect of the connecting cylinder group 4 and the sealing component 5 not only enables the rapid assembly of the lower jacking pipe 3 but also ensures the reliability of the seal at the connection, improving the problems of time-consuming connection and poor sealing effect of traditional jacking pipes.

[0026] In the connecting sleeve assembly 4, the sleeve 41 is fitted onto the connection point of the two sets of lower jacking pipes 3. The grooves 42 at both ends provide guidance for the docking of the lower jacking pipes 3, ensuring precise alignment of the pipes and reducing the alignment adjustment time during assembly. The fixing seat 43 on the upper surface of the sleeve 41 penetrates the sleeve wall, and the hexagonal swivel 44 inside can be quickly rotated with a hexagonal wrench, driving the bottom screw 45 to rotate. The guide ring 47 inside the fixing seat 43 restricts the radial wobble of the screw 45, causing it to rise and fall only axially, avoiding jamming during adjustment and improving the smoothness of operation. The connecting ring 46 at the bottom of the screw 45 rises and falls with the screw 45, thereby driving the sealing assembly 5 to complete the clamping action. This rotational adjustment method does not require complex tools and can be operated by a single person, greatly shortening the assembly time.

[0027] The sealing assembly 5 adopts a layered sealing design, further improving connection reliability: the sealing gasket 51 at the bottom of the connecting ring 46 is arc-shaped and fits tightly against the outer surface of the lower jacking pipe 3. When the connecting ring 46 is pressed down, the outer sealing block 52 at the bottom of the sealing gasket 51 is embedded in the sealing block groove 54 of the fixed gasket 53, forming the first radial seal, effectively preventing fluid leakage from the pipe gap; at the same time, the side sealing rings 55 on the inner walls of both ends of the sleeve 41 are misaligned and fitted with the sealing gasket 51 and the fixed gasket 53, forming the second axial seal. The double sealing structure significantly improves the sealing effect and adapts to the complex environment of humid and high-pressure conditions under the railway subgrade. In addition, the two sets of connecting rings 46 control the two sets of sealing assemblies 5 respectively, and the clamping force can be adjusted on both sides of the connection of the lower jacking pipe 3, which can ensure a tight seal and avoid excessive compression that could cause pipe deformation.

[0028] Through the convenient adjustment of the connecting cylinder group 4 and the multiple sealing collaboration of the sealing component 5, the dual advantages of rapid assembly and reliable sealing of the lower jacking pipe 3 are achieved, which not only improves the construction efficiency of railway subgrade pipelines, but also ensures safety and stability in long-term use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of easily assembled railway subgrade jacking pipe, comprising: The lower jacking pipe is characterized in that: a connecting cylinder assembly is movably connected to both ends of the lower jacking pipe, and a sealing component is provided inside the connecting cylinder assembly. The clamping tightness of the sealing component is adjusted by rotating the connecting cylinder assembly, and the sealing component is clamped at the surface connection of the lower jacking pipe after adjustment.

2. The easily assembled railway subgrade jacking pipe according to claim 1, characterized in that: The connecting sleeve assembly includes a sleeve that is fitted onto the connection point of two sets of lower jacking pipes. The sleeve has grooves extending through both ends. A fixed seat is fixedly connected to the upper surface of the sleeve. A hexagonal rotating head is rotatably connected inside the fixed seat. A screw is fixedly connected to the bottom of the hexagonal rotating head. A connecting ring is movably connected to the bottom of the screw.

3. The easily assembled railway subgrade jacking pipe according to claim 2, characterized in that: The fixed base extends through and connects the inner and outer ends of the sleeve. A guide ring is fixedly connected inside the fixed base, and the guide ring is movably connected to the top outer surface of the screw.

4. A railway subgrade jacking pipe assembly method according to claim 2, characterized in that: The sealing assembly includes a sealing gasket, which is fixedly connected to the bottom of the connecting ring and movably connected to the upper part of the sleeve. The sealing gasket is arc-shaped, and an outer sealing block is fixedly connected to the bottom of the sealing gasket. A fixing gasket is movably connected to the bottom of the sealing gasket and is fixedly connected to the lower part of the sleeve.

5. A railway subgrade jacking pipe assembly method according to claim 4, characterized in that: The fixed washer has a sealing groove on the side facing the sealing washer. The outer sealing block is movably connected inside the sealing groove. A side sealing ring is movably connected to the side surface of the connection between the sealing washer and the fixed washer. The side sealing rings are fixedly connected in two sets to the inner walls of both ends of the sleeve. The side sealing rings are misaligned with the sealing washer and the fixed washer.

6. A railway subgrade jacking pipe assembly method according to claim 2, characterized in that: The connecting rings are arranged in two sets at the top of the sleeve, and the sealing components are arranged in two sets at the bottom of the two sets of connecting rings. The two sets of sealing components are movably connected to both sides of the connection point of the two sets of lower top pipes.

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