Railway vehicle floor damping structure

Abstract

The utility model belongs to the technical field of railway vehicles, and discloses a railway vehicle floor damping structure. The adjusting bolt (2) is movably screwed on the structure base (5), the adjusting nut (3) is screwed on a screw rod (6) of the adjusting bolt (2), and the flexible buffer component (1) is arranged at the upper part of an end head (7) of the adjusting bolt (2). An annular groove (8) is formed in the upper portion of the end (7) of the adjusting bolt (2), the flexible buffering component (1) is arranged in the annular groove (8), and the flexible buffering component (1) is an O-shaped rubber ring. According to the railway vehicle floor damping structure, the floor can be conveniently and reliably supported, the problems that in the prior art, a supporting base is not firmly installed, the leveling workload is large during arrangement, and the leveling difficulty is high are solved, the floor damping performance is good, and the treading comfort of the vehicle floor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail vehicles, and more specifically, relates to a rail vehicle floor shock-absorbing structure. Background Art

[0002] The interior floors of rail transit vehicles are constructed using floor supports. The floor supports in existing rail vehicles cannot be adjusted in height, requiring extensive leveling work before installation. This leveling is typically achieved using rubber pads, a time-consuming and labor-intensive method with high tolerances. The rubber pads can also easily fall off during operation, resulting in insufficient floor support and uneven support in certain areas.

[0003] The prior art includes a technology entitled "A Floor Shock Absorption Structure for Rail Vehicles and Rail Vehicles," with publication number "CN110341733B." This technology discloses a floor shock absorption structure for rail vehicles and rail vehicles, comprising a floor, a vehicle underframe, a frame support beam, and a shock absorber. Multiple frame support beams arranged in parallel are disposed between the floor and the vehicle underframe, and the frame support beams are height-adjustable. Rigid support members are fixed above the frame support beams, the floor is fixed to the rigid support members, a first elastic buffer member is disposed between the floor and the rigid support member, and sound-absorbing material is filled between adjacent frame support beams. A mounting portion is formed on the vehicle underframe, and the shock absorber is assembled and fixed within the mounting portion. The shock absorber comprises a shock absorber body and a rigid connector embedded in the top of the shock absorber body. The frame support beam is fixed to the rigid connector, a second elastic buffer member is disposed between the rigid connector and the frame support beam, and the shock absorber has a damping portion. This invention solves the problems of poor shock absorption and comfort associated with prior art rail vehicle floors.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0005] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a rail vehicle floor shock-absorbing structure is provided which has a simple structure and can conveniently and reliably support the floor, solves the problems in the existing technology of the support seat being unstable in installation, large workload in leveling during arrangement, and high difficulty in leveling, has good shock-absorbing performance for the floor, and improves the comfort of walking on the vehicle floor.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The utility model relates to a rail vehicle floor shock absorption structure. An adjusting bolt is movably screwed on a structure base, an adjusting nut is screwed on a screw rod of the adjusting bolt, and a flexible buffer component is arranged on the upper end of the adjusting bolt.

[0008] An annular groove is provided on the upper portion of the end of the adjusting bolt, and a flexible buffer component is arranged in the annular groove. The flexible buffer component is an O-type rubber ring.

[0009] The flexible buffer component is located below the floor of the rail vehicle.

[0010] The end of the adjusting bolt is parallel to the upper surface of the structural base.

[0011] The interior of the structural base is a cavity structure, and the screw of the adjusting bolt is screwed through the threaded hole on the upper part of the structural base and extends into the cavity structure.

[0012] A washer is sleeved on the screw rod of the adjusting bolt, and the washer is located between the upper surface of the structural base and the adjusting nut.

[0013] The screw rod of the adjusting bolt is configured to be capable of rotating upward or downward along the threaded hole of the structural base.

[0014] The bottom of the structural base is the base bottom surface, and the structural base is a structure made of metal material.

[0015] A fixing nut is clamped in the cavity structure, and the lower end of the screw rod of the adjusting bolt is screwed through the fixing nut.

[0016] The technical solution of this utility model is adopted, and the working principle and beneficial effects are as follows:

[0017] The rail vehicle floor shock-absorbing structure disclosed herein comprises a structural base, an adjusting bolt, an adjusting nut, and a flexible buffer component. These components are then assembled, and the adjusting bolt is movably screwed onto the structural base. The end of the adjusting bolt is positioned above the structural base, allowing the adjusting bolt to be raised and lowered vertically relative to the structural base. The adjusting nut is screwed onto the screw of the adjusting bolt. After the adjusting bolt is adjusted to a desired position relative to the structural base, the adjusting nut is tightened to contact the upper surface of the structural base, locking the adjusting bolt and preventing further upward movement. A flexible buffer component is disposed above the end of the adjusting bolt. The rail vehicle floor is laid on the flexible buffer component, which effectively filters vibrations from the vehicle body, effectively acting as a sound bridge and providing excellent shock absorption. During floor laying, extensive leveling is not required; instead, the height of the adjusting bolts of each shock-absorbing device needs to be adjusted according to the desired position. The adjusting bolts can be rotated and adjusted upward to reach the highest position upward or the lowest position downward, achieving adjustment within a certain range to meet the needs of varying deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1This is a schematic structural diagram of the rail vehicle floor shock absorption structure of the present utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the rail vehicle floor shock-absorbing structure according to the present invention when the adjusting bolt is at the lowest position;

[0021] Figure 3 This is a schematic cross-sectional view of the rail vehicle floor shock-absorbing structure according to the present invention when the adjusting bolt is in the highest position;

[0022] The marks in the accompanying drawings are: 1. Flexible buffer component; 2. Adjusting bolt; 3. Adjusting nut; 4. Washer; 5. Structural base; 6. Screw; 7. End; 8. Ring groove; 9. Rail vehicle floor; 10. Threaded hole; 11. Bottom surface of base; 12. Fixing nut. DETAILED DESCRIPTION

[0023] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0024] As attached Figure 1 -Attached Figure 3The utility model discloses a rail vehicle floor shock absorption structure, the structure base 5 on the activity screwing and installing adjusting bolt 2, the screw rod 6 on adjusting bolt 2 screwing and installing adjusting nut 3, the upper portion of the end 7 of adjusting bolt 2 is arranged flexible buffer part 1. The above structure, for the deficiency in the prior art, the improved technical scheme is proposed. When setting structure, structure base, adjusting bolt, adjusting nut, flexible buffer part 1 are equipped respectively, then the above-mentioned components need to be combined, adjusting bolt 2 is screwed and installed on the structure base 5, the end of adjusting bolt 2 is located above the structure base, adjusting bolt can be vertically up and down relative to the structure base, adjusting nut 3 is screwed and installed on the screw rod 6 of adjusting bolt 2, after adjusting bolt is adjusted to the appropriate position relative to the structure base, the adjusting nut is screwed and tightened and contacts the upper surface of the structure base, the locking of adjusting bolt is realized, and it will not rotate up and down again, and flexible buffer part 1 is arranged on the upper portion of the end 7 of adjusting bolt 2. The rail vehicle floor 9 is laid on flexible buffer part 1, flexible buffer part 1 can effectively filter the vibration from the vehicle body, effectively play the role of sound bridge, and the damping effect is good. At the same time, when laying the floor, a large amount of leveling is not needed, but only the height of the adjusting bolt 2 of each shock absorption device needs to be adjusted according to the set position. When adjusting the adjusting bolt 2, it can be rotated upwards and adjusted upwards, reaches the highest position upwards, reaches the lowest position downwards, realizes the adjustment in a certain range, and meets the demand of different deformation amounts. The rail vehicle floor shock absorption structure disclosed by the utility model has simple structure, can conveniently and reliably realize the support of the floor, solves the problems of the unfirm installation of the support seat in the prior art, the large leveling workload and the high leveling difficulty when arranging, has good floor shock absorption performance, and improves the tread comfort of the vehicle floor.

[0025] The upper portion of the end 7 of the adjusting bolt 2 is provided with a ring groove 8, the flexible buffer part 1 is arranged in the ring groove 8, and the flexible buffer part 1 is an O-shaped rubber ring. The above structure, the ring groove 8 is recessed on the upper surface of the end 7 of the adjusting bolt 2, is used for placing the annular flexible buffer part 1, the flexible buffer part 1 cannot horizontally and upwardly and downwardly move, reliable positioning and reliable bearing of the floor are realized.

[0026] The flexible buffer part 1 is located below the rail vehicle floor 9. The above structure, the flexible buffer part 1 reliably bears the rail vehicle floor 9, realizes the bearing and shock absorption of the floor.

[0027] The end 7 of the adjusting bolt 2 is parallel to the upper surface of the structure base 5. The above structure, the end 7 is used for arranging the flexible buffer part 1, the end 7 is always parallel to the upper surface of the structure base, and after the shock absorption structure is arranged in the vehicle body chamber, the end 7 is always parallel to the inner wall of the vehicle body.

[0028] The interior of the structural base 5 is a cavity structure, and the screw 6 of the adjusting bolt 2 is screwed through the threaded hole 10 on the upper part of the structural base 5 and extends into the cavity structure. The above structure, the cavity structure is used to accommodate the screw of the adjusting bolt, and the screw can be easily raised and lowered as needed.

[0029] The screw rod 6 of the adjusting bolt 2 is fitted with a washer 4, which is located between the upper surface of the structural base 5 and the adjusting nut 3. In the above structure, the washer plays a buffering role.

[0030] The screw 6 of the adjusting bolt 2 is configured to rotate upward or downward along the threaded hole 10 of the structural base 5. The bottom of the structural base 5 is a base bottom surface 11, which is made of metal. In this structure, the base bottom surface 11 is positioned within the vehicle body, with the floor positioned above the shock-absorbing structure to provide load-bearing and shock-absorbing performance.

[0031] The fixing nut 12 is clamped in the cavity structure, and the lower end of the screw rod 6 of the adjusting bolt 2 is screwed through the fixing nut 12. With the above structure, the fixing nut can reliably limit the screw rod of the adjusting bolt, on the one hand, without affecting the rotation, and on the other hand, the positioning can be reliably achieved after rotation.

[0032] The rail vehicle floor shock-absorbing structure of the present invention comprises a structural base, an adjusting bolt, an adjusting nut, and a flexible buffer component 1. These components are then assembled. An adjusting bolt 2 is movably screwed onto the structural base 5. The end of the adjusting bolt 2 is positioned above the structural base, allowing the adjusting bolt to be raised and lowered vertically relative to the structural base. An adjusting nut 3 is screwed onto the screw rod 6 of the adjusting bolt 2. After the adjusting bolt is adjusted to the desired position relative to the structural base, the adjusting nut is tightened to contact the upper surface of the structural base, locking the adjusting bolt and preventing further upward movement. The flexible buffer component 1 is positioned above the end 7 of the adjusting bolt 2. The rail vehicle floor 9 is laid on the flexible buffer component 1. The flexible buffer component 1 effectively filters vibrations from the vehicle body, effectively blocking sound bridges and providing excellent shock absorption. Furthermore, extensive leveling is not required during floor laying; instead, the height of the adjusting bolts 2 of each shock-absorbing device needs to be adjusted according to the desired position. The adjusting bolts 2 can be rotated and adjusted upward, reaching their highest position or downward, allowing for adjustment within a certain range to meet varying deformation requirements.

[0033] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A rail vehicle floor shock absorption structure, characterized by: An adjusting bolt (2) is movably screwed onto the structural base (5), an adjusting nut (3) is screwed onto the screw rod (6) of the adjusting bolt (2), and a flexible buffer component (1) is arranged on the upper portion of the end (7) of the adjusting bolt (2).

2. The rail vehicle floor shock absorption structure according to claim 1, characterized in that: An annular groove (8) is provided on the upper portion of the end (7) of the adjusting bolt (2), and a flexible buffer component (1) is arranged in the annular groove (8). The flexible buffer component (1) is an O-type rubber ring.

3. The rail vehicle floor shock absorption structure according to claim 1 or 2, characterized in that: The flexible buffer component (1) is located below the rail vehicle floor (9).

4. The rail vehicle floor shock absorption structure according to claim 1 or 2, characterized in that: The end (7) of the adjusting bolt (2) is parallel to the upper surface of the structural base (5).

5. The rail vehicle floor shock absorption structure according to claim 1 or 2, characterized in that: The interior of the structural base (5) is a cavity structure, and the screw rod (6) of the adjusting bolt (2) is screwed through the threaded hole (10) on the upper portion of the structural base (5) and extends into the cavity structure.

6. The rail vehicle floor shock absorption structure according to claim 1 or 2, characterized in that: A washer (4) is mounted on the screw rod (6) of the adjusting bolt (2), and the washer (4) is located between the upper surface of the structural base (5) and the adjusting nut (3).

7. The rail vehicle floor shock absorption structure according to claim 1 or 2, characterized in that: The screw rod (6) of the adjusting bolt (2) is configured to be capable of rotating upward or downward along the threaded hole (10) of the structural base (5).

8. The rail vehicle floor shock absorption structure according to claim 1 or 2, characterized in that: The bottom of the structural base (5) is a base bottom surface (11), and the structural base (5) is a structure made of metal material.

9. The rail vehicle floor shock absorption structure according to claim 5, characterized in that: A fixing nut (12) is clamped in the cavity structure, and the lower end of the screw rod (6) of the adjusting bolt (2) is screwed through the fixing nut (12).

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