Steel spring outer sleeve with vertical adjustment capability

Abstract

The utility model discloses a steel spring outer sleeve with vertical adjustment capability. The sleeve comprises a sleeve body, a connecting claw, a protective cover mounting base plate, a first-stage jacking position and a second-stage jacking position, the plurality of connecting claws are uniformly arranged on the peripheral surface of the sleeve body in the circumferential direction and are used for being combined with an external steel spring floating slab; a plurality of first-level jacking positions and a plurality of second-level jacking positions are installed on the inner wall of the sleeve body in the circumferential direction at intervals, the first-level jacking positions and the second-level jacking positions are sequentially and alternately arranged on the inner surface of the sleeve body in the circumferential direction and are different in height, and a protective cover installation base plate is installed on the inner wall, over the first-level jacking positions, of the sleeve body. The adjusting capacity of the steel spring floating slab type ballastless track can be greatly improved, and the steel spring floating slab type ballastless track is suitable for urban rail transit to pass through areas where unfavorable geology and special vibration reduction requirements coincide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of track engineering, and especially relates to a steel spring outer sleeve with vertical adjustment capacity. BACKGROUND

[0002] Urban rail transit often passes through densely populated areas, and needs to take vibration reduction measures according to the conclusions of environmental impact assessment. Steel spring floating slab is the highest grade vibration reduction means, and is generally used for line underpass or adjacent sensitive points. Once the existing steel spring floating slab type ballastless track is formed, it can only be adjusted through fasteners, and special means need to be taken for processing when the adjustment capacity of the fasteners is exceeded, which is high in cost and greatly interferes with operation. In some cities, due to factors such as underground water utilization, there are adverse geological conditions such as subsidence area and ground fissure, and in the case of coincidence of special geological sections and special vibration reduction sections, it is difficult to achieve vibration reduction demand if ballast track is used, and it is difficult to meet the adjustment demand if steel spring floating slab is used. SUMMARY

[0003] In order to solve the problems existing in the prior art, the utility model provides a steel spring outer sleeve with vertical adjustment capacity, which is suitable for laying steel spring floating slab and has great vertical adjustment demand in track engineering

[0004] The utility model adopts the technical scheme that:

[0005] The utility model discloses a sleeve body, a connecting claw, a protective cover installation base plate, a first jacking position and a second jacking position.

[0006] A plurality of connecting claws are evenly arranged on the outer circumferential surface of the sleeve body in the circumferential direction, and the connecting claws are used to combine with the external steel spring floating slab. A plurality of first jacking positions and a plurality of second jacking positions are installed on the inner wall of the sleeve body in the circumferential direction, the first jacking positions and the second jacking positions are alternately arranged in the circumferential direction on the inner surface of the sleeve body and are different in height, and the protective cover installation base plate is installed on the inner wall of the sleeve body above the first jacking position.

[0007] The inside of the steel spring outer sleeve is a cavity, and the cavity is used to install the steel spring base and the steel spring of the steel spring floating slab.

[0008] The protective cover installation base plate, the first jacking position and the second jacking position are arranged in sequence from top to bottom, the protective cover installation base plate is used to install the external protective cover, and the first jacking position and the second jacking position are both used to install the external steel spring inner sleeve.

[0009] The distance between the primary lifting position and the secondary lifting position in the vertical direction is equal to the maximum adjustment range of the fastener system used by the steel spring floating slab.

[0010] The middle part of the arc-shaped end of the primary lifting position is provided with a primary lifting position mounting hole, and the middle part of the arc-shaped end of the secondary lifting position is provided with a secondary lifting position mounting hole.

[0011] The middle part of the protective cover mounting base plate is provided with a protective cover mounting hole for mounting a protective cover bolt.

[0012] The middle line of the protective cover mounting base plate and the primary lifting position is located on the same vertical plane.

[0013] The number of the primary lifting positions and the secondary lifting positions is the same, the number of the connecting claws is twice the number of the primary lifting positions or the secondary lifting positions, and the number of the protective cover mounting base plates is three and located on the same plane to form a layer.

[0014] The connecting claws are uniformly spaced and arranged on the outer circumferential surface of the sleeve body in the circumferential direction.

[0015] The connecting claws are combined with the steel spring floating slab through cast-in-place concrete, so that the outer sleeve of the steel spring is combined and fixed with the steel spring floating slab.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The present application greatly improves the adjustment capability of the steel spring floating slab type ballastless track.

[0018] 2. The present application can be applied to various urban rail transit areas where the bad geology and special vibration reduction requirements overlap. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the plan view of the present application.

[0020] Figure 2 is the transverse sectional view of the present application.

[0021] In the figure: 1, sleeve body, 2, connecting claw, 3, protective cover mounting base plate, 4, primary lifting position, 5, secondary lifting position, 31, protective cover mounting hole, 41, primary lifting position mounting hole, 51, secondary lifting position mounting hole. DETAILED DESCRIPTION

[0022] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0023] The plan view and the cross-sectional view of the utility model are shown in the drawings Figure 1 and Figure 2 As shown, it comprises a sleeve body 1, a connecting claw 2, a protective cover mounting base plate 3, a first jacking position 4 and a second jacking position 5.

[0024] A plurality of connecting claws 2 are evenly arranged on the outer circumferential surface of the sleeve body 1 in the circumferential direction, and the connecting claws 2 are used for being combined with external steel spring floating plates; a plurality of first jacking positions 4 and a plurality of second jacking positions 5 are installed on the inner wall of the sleeve body 1 in the circumferential direction at intervals, the first jacking positions 4 and the second jacking positions 5 are alternately arranged in the circumferential direction on the inner surface of the sleeve body 1 and are different in height, and the protective cover mounting base plate 3 is installed on the inner wall of the sleeve body 1 directly above the first jacking position 4; the steel spring sleeve is suitable for a section of land where the geological conditions are poor, such as ground fissures, active faults, subsidence areas and the like, and special damping measures are required.

[0025] The inside of the steel spring sleeve is a cavity, and the cavity is used for installing a steel spring base and a steel spring of the steel spring floating plate.

[0026] The protective cover mounting base plate 3, the first jacking position 4 and the second jacking position 5 are arranged on the inner wall of the sleeve body 1 and are arranged in sequence from top to bottom, and more specifically, the vertical projection of the first jacking position 4 on the plane where the second jacking position 5 is located is alternately and intervally arranged with the second jacking position 5; wherein the protective cover mounting base plate 3 is used for installing an external protective cover, and the first jacking position 4 and the second jacking position 5 are both used for installing an external steel spring inner sleeve.

[0027] In a specific implementation, under normal circumstances, the steel spring inner sleeve is installed to the first jacking position 4, and when the track structure needs to be adjusted after the deformation of the foundation of the section of land, the steel spring inner sleeve is installed to the second jacking position 5.

[0028] The spacing in the vertical direction between the first jacking position 4 and the second jacking position 5 is equal to the maximum adjustment range of the fastener system adopted by the steel spring floating plate; and the spacing in the vertical direction between the protective cover mounting base plate 3 and the first jacking position 4 is not less than 50 mm.

[0029] A first jacking position mounting hole 41 is formed in the middle of the arc-shaped end of the first jacking position 4, and a second jacking position mounting hole 51 is formed in the middle of the arc-shaped end of the second jacking position 5, and the first jacking position mounting hole 41 and the second jacking position mounting hole 51 are both used for installing a steel spring.

[0030] A protective cover mounting hole 31 for installing a protective cover bolt is formed in the middle of the protective cover mounting base plate 3.

[0031] The middle lines of the protective cover mounting base plate 3 and the first jacking position 4 are located on the same vertical plane.

[0032] The first-stage lifting position 4 and the second-stage lifting position 5 are equal in number, the number of the connecting claws 2 is twice the number of the first-stage lifting position 4 or the second-stage lifting position 5, and the number of the protective cover mounting base plates 3 is usually three and located on the same plane to form a layer.

[0033] The connecting claws 2 are uniformly spaced and circumferentially arranged on the outer circumferential surface of the sleeve body 1.

[0034] The connecting claws 2 are combined with the steel spring floating slab through cast-in-situ concrete, so as to combine and fix the steel spring outer sleeve with the steel spring floating slab.

[0035] In the specific implementation, after the steel spring floating slab and the cast-in-situ concrete track bed plate are combined into a whole, the steel spring inner sleeve is installed to the first-stage lifting position 4 during normal lifting; when the adjustment amount of the fastener system reaches the adjustment limit value and the track structure needs to be adjusted, the fastener adjustment member of the fastener system is restored to the standard member, then the steel spring inner sleeve is rotated by 120° to lift the track plate, and the steel spring inner sleeve is installed to the second-stage lifting position 5, so as to realize large adjustment of the steel spring floating slab track.

[0036] The above description of the embodiments is intended to illustrate the technical concept and key features of the present application, and the purpose is to help those skilled in the art to understand the content of the present application and to implement it accordingly, but it is not intended to limit the protection scope of the present application. Any equivalent substitution, change or modification based on the core spirit and technical essence of the present application should be considered as falling within the protection scope of the present application, so as to ensure the applicability and innovation of the technical scheme in various situations.

Claims

1. A steel spring outer sleeve with vertical adjustment capability, characterized in that: it comprises a sleeve body (1), a connecting claw (2), a protective cover mounting base plate (3), a first jacking position (4) and a second jacking position (5); a plurality of connecting claws (2) are evenly arranged on the outer circumferential surface of the sleeve body (1), and the connecting claws (2) are used to combine with the external steel spring floating plate; a plurality of first jacking positions (4) and a plurality of second jacking positions (5) are installed on the inner wall of the sleeve body (1) in a circumferential direction, the first jacking positions (4) and the second jacking positions (5) are arranged alternately along the inner surface of the sleeve body (1) in a circumferential direction and have different heights, and the protective cover mounting base plate (3) is installed on the inner wall of the sleeve body (1) directly above the first jacking position (4).

2. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: the inside of the steel spring outer sleeve is a cavity, and the cavity is used to install the steel spring base and the steel spring of the steel spring floating plate.

3. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: the protective cover mounting base plate (3), the first jacking position (4) and the second jacking position (5) are arranged in sequence from top to bottom, the protective cover mounting base plate (3) is used to install the external protective cover, and the first jacking position (4) and the second jacking position (5) are both used to install the external steel spring inner sleeve.

4. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: the vertical distance between the first jacking position (4) and the second jacking position (5) is equal to the maximum adjustment range of the fastener system adopted by the steel spring floating plate; and the vertical distance between the protective cover mounting base plate (3) and the first jacking position (4) is not less than 50 mm.

5. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: a first jacking position mounting hole (41) is formed in the middle of the arc-shaped end of the first jacking position (4), and a second jacking position mounting hole (51) is formed in the middle of the arc-shaped end of the second jacking position (5), and the first jacking position mounting hole (41) and the second jacking position mounting hole (51) are both used to install the steel spring.

6. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: a protective cover mounting hole (31) for installing a protective cover bolt is formed in the middle of the protective cover mounting base plate (3).

7. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: the middle lines of the protective cover mounting base plate (3) and the first jacking position (4) are located on the same vertical plane.

8. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ The first and second top-up positions (4, 5) are equal in number, the number of the connecting claws (2) is twice the number of the first or second top-up positions (4, 5), and the number of the protective cover mounting bases (3) is three and they are located on the same plane to form a layer.

9. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: The connecting claws (2) are uniformly spaced and arranged circumferentially on the outer circumferential surface of the sleeve body (1).

10. The steel spring outer sleeve with vertical adjustment capability according to claim 1, characterized in that: The connecting claws (2) are combined with the steel spring floating slab through cast-in-place concrete, so that the steel spring outer sleeve is combined and fixed with the steel spring floating slab.

Images