Railway vehicle seat side armrest mounting structure

Abstract

The utility model discloses a rail vehicle seat side armrest mounting structure, which comprises a side armrest rod and a side wall, and is characterized in that a mounting section bar is arranged in the side wall; a T-shaped bolt is arranged on the mounting profile, and a screw rod of the T-shaped bolt extends to the outside of the side wall; a screw rod of the T-shaped bolt is sleeved with a connecting seat, and a fastening nut used for fastening the position where the connecting seat is located is arranged on the screw rod of the T-shaped bolt; a mounting cavity is formed in one end, facing the side wall, of the side grab rail, and the connecting seat is arranged in the mounting cavity; and the side grab rails are fixedly connected with the connecting seats through fasteners. During installation, the adjusting amount in the vertical direction and the transverse direction of the interior side wall can be achieved, the manufacturability is good, site positioning and drilling and riveting nut matching are not needed, and an external installation base is omitted.

Description

Technical Field

[0001] The utility model relates to a rail vehicle seat side armrest mounting structure, belonging to the technical field of mounting structures of armrest components installed inside rail transit vehicles. Background Art

[0002] Horizontal handrails are usually arranged on both sides of the longitudinal long seats inside subway vehicles to prevent passengers from falling from the side due to braking or acceleration, thereby improving riding safety.

[0003] The horizontal handrail arrangement of the prior art is as follows Figure 1 As shown, its installation structure includes a side handrail rod 1, a screen 12 below the side handrail rod 1, an external mounting seat 9, and a fastening screw 10. During installation, it is necessary to locate and drill the rivet nut 11 on site on the aluminum alloy side wall of the vehicle body to provide an installation interface. The advantage of this structure is that it is installed from the front, which is simple and quick. The disadvantage is that when the rivet nut is installed on site, the operation workload is large and high precision is required. Once the rivet nut is installed, there is no adjustable space for installation; the mounting seat protrudes from the surface of the handrail rod, the structure is complex, and the overall effect is not beautiful enough. Utility Model Content

[0004] The utility model aims to provide a rail vehicle seat side armrest installation structure to solve the problems of heavy workload and poor process adjustability in the installation of subway vehicle seat side armrests in the above background.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A rail vehicle seat side armrest mounting structure, comprising a side armrest rod and a side wall, characterized in that: a mounting profile is arranged inside the side wall; a T-bolt is arranged on the mounting profile, and the screw rod of the T-bolt extends to the outside of the side wall; a connecting seat is sleeved on the screw rod of the T-bolt, and a fastening nut for fastening the position of the connecting seat is arranged on the screw rod of the T-bolt; an installation cavity is opened at one end of the side armrest rod facing the side wall, and the connecting seat is arranged in the installation cavity; the side armrest rod and the connecting seat are connected and fixed by fasteners.

[0007] Therefore, by setting the mounting profile inside the side wall and the T-bolts inside the mounting profile, the steps of drilling and riveting nuts at the installation site are eliminated, which facilitates the positioning of the installation position of the side handrail rod. At the same time, the external mounting seat is cancelled, and the side handrail rod is directly mounted on the outside of the connecting seat, making the installation structure of the side handrail rod simpler, more integrated, and more coordinated and beautiful in appearance.

[0008] According to the embodiments of the present invention, the present invention can be further optimized. The following is the technical solution formed after optimization:

[0009] In order to make the installation of the side handrail rod more stable, it is necessary to form a stable overall structure between the connecting seat, the T-bolt and the side wall. In a specific embodiment, the groove of the mounting profile is set toward the outside of the side wall, the fastening nut is set at one end of the connecting seat away from the side wall, and the connecting seat is fastened to the side wall.

[0010] Specifically, a first threaded hole is opened on the side of the side handrail rod, a second threaded hole corresponding to the first threaded hole is opened on the side of the connecting seat, and a screw passing through the first threaded hole and extending into the second threaded hole is arranged on the side of the side handrail rod.

[0011] As a result, the connecting seat is tightly attached to the side wall under the tightening action of the fastening nut, thereby forming a stable overall structure between the T-bolt, the side wall, and the mounting profile. The side handrail rod is fixedly connected to the connecting seat arranged inside the side handrail rod by screws, so that the side handrail rod can be firmly installed on the side wall.

[0012] If there is only one threaded hole, precise alignment is required during installation. To facilitate installation, in a specific embodiment, the second threaded hole is a through hole that penetrates the side of the connecting seat and has threads inside, so that both the front and back sides of the connecting seat can be used normally.

[0013] In order to adapt to the inclination angle of the side wall, in a specific embodiment, a mounting hole is opened inside the connecting seat for the T-bolt to pass through. The mounting hole extends along the length direction of the connecting seat and is arranged obliquely downward from the end of the connecting seat close to the side wall to the end away from the side wall.

[0014] In order to avoid scratching the surface of the side wall, in a specific embodiment, a gasket is provided between the connecting seat and the side wall.

[0015] In order to make the installation structure more stable, specifically, the side wall of the connecting seat is arranged to fit the inner wall of the installation cavity.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The rail vehicle seat side armrest mounting structure of the utility model retains the advantages of front installation and disassembly, and not only solves the on-site drilling and riveting nut work, but also facilitates the positioning of the installation position of the side armrest rod, reduces the installation workload, enhances the installation adjustability, but also eliminates the external mounting seat, making the overall installation effect more beautiful. The structure is reliable, has high safety performance, and has a better overall installation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation structure of the prior art of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the installation elevation of the utility model structure;

[0020] Figure 3 It is a cross-sectional schematic diagram of the installation structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the side handrail rod of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal connection seat of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the installation profile of the utility model.

[0024] In the figure

[0025] 1-side handrail rod; 11-installation cavity; 12-first threaded hole; 2-connecting seat; 21-second threaded hole; 22-installation hole; 3-washer; 4-T-bolt; 5-installation profile; 6-fastening nut; 7-screw; 8-side wall; 9-external mounting seat; 10-fastening bolt; 11-rivet nut; 12-screen. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0027] like Figure 1 As shown, the rail vehicle seat side armrest mounting structure of this embodiment includes a side armrest rod 1 and a side wall 8. A mounting profile 5 is arranged inside the side wall 8, and the notch of the mounting profile 5 is arranged toward the outside of the side wall 8; a T-bolt 4 is arranged inside the mounting profile 5, and the screw rod of the T-bolt 4 extends to the outside of the side wall 8; a connecting seat 2 is sleeved on the screw rod of the T-bolt 4, and a fastening nut 6 for fastening the position of the connecting seat 2 is arranged on the screw rod of the T-bolt 4, and the fastening nut 6 is arranged at one end of the connecting seat 2 away from the side wall 8, and the connecting seat 2 is fastened to the side wall 8. In order to avoid scratching the side wall surface, a washer 3 is arranged between the connecting seat 2 and the side wall 8. The washer 3 in this embodiment is a rubber ring.

[0028] The connecting seat 2 is fastened by the fastening nut 6 and is pressed against the side wall 8, thereby forming a stable overall structure between the T-bolt 4, the side wall 8, and the mounting profile 5. The side handrail rod 1 is fixedly connected to the connecting seat 2 arranged inside the side handrail rod 1 by the screw 7, so that the side handrail rod 1 can be stably installed on the side wall 8.

[0029] An installation cavity 11 is opened at one end of the side handrail rod 1 facing the side wall, and the connecting seat 2 is arranged inside the installation cavity 11. In order to make the installation structure more stable, the side wall of the connecting seat 2 is arranged to fit the inner wall of the installation cavity 11.

[0030] A first threaded hole 12 is formed on the side of the side handle bar 1, a second threaded hole 21 corresponding to the first threaded hole 12 is formed on the side of the connection seat 2, and a screw 7 is provided on the side of the side handle bar 1, which passes through the first threaded hole 12 and extends into the second threaded hole 21. The second threaded hole 21 is a through hole that penetrates the side of the connection seat 2 and has a threaded inner wall, so that both sides of the connection seat can be used.

[0031] In order to adapt to the inclination angle of the side wall, the interior of the connecting seat 2 is provided with a mounting hole 22 for the T-bolt 4 to pass through. The mounting hole 22 extends along the length direction of the connecting seat 2 and is arranged to be inclined downward from the end of the connecting seat 2 close to the side wall 8 to the end away from the side wall 8.

[0032] Place the T-bolt 4 in the mounting profile 5 of the interior side wall 8 in advance. The mounting profile 5 of this embodiment is an aluminum alloy groove; then weld the mounting profile 5 to the interior side wall 8, use nuts and washers to firmly tighten the internal connection seat 2 to the interior side wall 8, separate the side wall 8 and the internal connection seat 2 with washers 3, insert the front of the side handrail rod 1 into the outside of the internal connection seat 2, so that the side handrail rod 1 completely hides the connection seat 2, and install the side with set screws 7 to fasten the side handrail rod to the internal connection seat. The structure can be adjusted in two directions during installation, has good processability, does not require on-site positioning and drilling rivet nuts, and eliminates the external mounting seat, making the appearance more coordinated and beautiful.

[0033] During installation, first place the T-bolt 4 in the mounting profile 5 of the side wall 8. According to the assembly position, adjust the T-bolt 4 appropriately to make it in the appropriate position. Then use the washer 3 to insert into the T-bolt 4, and then use the fastening nut 6 to firmly tighten the connecting seat 2 to the side wall 8. There is a rubber ring 3 between the side wall 8 and the connecting seat 2 to prevent the side handrail rod from rubbing against the interior side wall and damaging the surface. Then, insert the side handrail rod 1 into the outside of the internal connecting seat 2 from the front to completely hide the internal connecting seat. Use the set screw 7 to install it on the side to fasten the side handrail rod 1 to the internal connecting seat.

[0034] Compared with the original structure, the utility model patented structure can achieve adjustment in both vertical and horizontal directions along the interior side wall during installation. It has good manufacturability, does not require on-site positioning and drilling rivet nuts, and eliminates the external mounting seat, resulting in a more coordinated and beautiful appearance.

[0035] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.

Claims

1. A rail vehicle seat side armrest mounting structure, comprising a side armrest rod (1) and a side wall (8), characterized in that: The side wall (8) is provided with a mounting profile (5) inside; a T-bolt (4) is provided on the mounting profile (5), and the screw rod of the T-bolt (4) extends to the outside of the side wall (8); a connecting seat (2) is sleeved on the screw rod of the T-bolt (4), and a fastening nut (6) for fastening the position of the connecting seat (2) is provided on the screw rod of the T-bolt (4); a mounting cavity (11) is formed at one end of the side handrail rod (1) facing the side wall (8), and the connecting seat (2) is arranged in the mounting cavity (11); the side handrail rod (1) and the connecting seat (2) are connected and fixed by fasteners.

2. The rail vehicle seat side armrest mounting structure according to claim 1, characterized in that: The notch of the mounting profile (5) is arranged toward the outside of the side wall (8), and the fastening nut (6) is arranged at an end of the connecting seat (2) away from the side wall (8), and fastens the connecting seat (2) to the side wall (8).

3. The rail vehicle seat side armrest mounting structure according to claim 1, characterized in that: A first threaded hole (12) is formed on a side surface of the side handle bar (1), a second threaded hole (21) corresponding to the first threaded hole (12) is formed on a side surface of the connecting seat (2), and a screw (7) is provided on the side surface of the side handle bar (1) that passes through the first threaded hole (12) and extends into the interior of the second threaded hole (21).

4. The rail vehicle seat side armrest mounting structure according to claim 3, characterized in that: The second threaded hole (21) is a through hole that passes through the side surface of the connecting seat (2) and has a threaded inner wall.

5. The rail vehicle seat side armrest mounting structure according to claim 1, characterized in that: The connection seat (2) has a mounting hole (22) formed inside thereof for the T-bolt (4) to pass through. The mounting hole (22) extends along the length direction of the connection seat (2) and is arranged obliquely downward from an end of the connection seat (2) close to the side wall (8) to an end of the connection seat (2) away from the side wall (8).

6. The rail vehicle seat side armrest mounting structure according to claim 1, characterized in that: The side wall of the connecting seat (2) is arranged to fit the inner wall of the installation cavity (11).

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