Search

CN-121084441-B - Multifunctional small table plate for rail transit

CN121084441BCN 121084441 BCN121084441 BCN 121084441BCN-121084441-B

Abstract

The invention discloses a multifunctional small table plate for rail transit, which relates to the technical field of high-speed railway equipment and comprises a support plate, a driving motor, a threaded rod, a threaded sleeve, a main table plate, an auxiliary table plate and an intermittent control assembly. The driving motor drives the threaded sleeve to move, and the first connecting rod drives the main table plate to rotate around the connecting support to be unfolded. The auxiliary table board can be slidingly accommodated in the main table board and is pulled outwards when the auxiliary table board needs to be prolonged. The intermittent control assembly is characterized in that in the process of drawing the auxiliary table board, the linkage mechanism drives the control rod to move downwards, so that the triangular clamping head passes over and hooks the control push head to realize automatic sectional locking, retraction caused by external force or jolt is effectively prevented, stable use is ensured, and when the intermittent control assembly is retracted, the L-shaped connecting rod is required to be separated from the control groove by slightly pulling the trigger unlocking mechanism, so that the intermittent control assembly can be smoothly pushed back. The invention realizes the one-key unfolding of the main table plate, the flexible adjustment of the length of the auxiliary table plate and reliable self-locking, has compact structure, and is safe and convenient to operate, and is particularly suitable for rail transit environments.

Inventors

  • WANG YOUFANG

Assignees

  • 沪强企业(盐城)有限公司

Dates

Publication Date
20260508
Application Date
20250916

Claims (8)

  1. 1.A multifunctional small table board for rail transit is characterized in that, The device comprises a support plate (1), a driving motor (2) is arranged on the support plate (1), a threaded rod (6) is arranged on an output shaft of the driving motor (2), a thread sleeve (4) is sleeved on the outer wall of the threaded rod (6), a main table plate (9) is arranged on the support plate (1) through a connecting support (8), the thread sleeve (4) is connected with the main table plate (9) through a first connecting rod (7), and an auxiliary table plate (10) is movably arranged in the main table plate (9) through an intermittent control assembly (11); A plurality of groups of control grooves (15) are formed in the bottom of the inner wall of the main table plate (9) at equal intervals, a bottom plate (42) is fixedly arranged at the bottom of the auxiliary table plate (10), an avoidance groove (41) is reserved between the bottom of the bottom plate (42) and the bottom of the inner wall of the main table plate (9), and a traveling roller (14) is arranged on the outer wall of the auxiliary table plate (10) through a driving shaft (12); The intermittent control assembly (11) comprises a driving gear (13), wherein the driving gear (13) is fixedly sleeved on the outer wall of one side, far away from the walking roller (14), of the driving shaft (12), two groups of first fixing supports (16) are fixedly connected with the bottom plate (42), and the first fixing plate (21) is fixedly arranged between the two groups of first fixing supports (16).
  2. 2. The utility model relates to a multifunctional small table board for track traffic, which is characterized in that, Two groups of first fixed blocks (3) are fixedly connected with the support plate (1), one end of a threaded rod (6) is rotationally connected with one group of first fixed blocks (3), the other end of the threaded rod (6) is fixedly connected with an output shaft of the driving motor (2), and the output shaft of the driving motor (2) movably penetrates through the first fixed blocks (3) at the bottom.
  3. 3. The utility model relates to a multifunctional small table board for track traffic, which is characterized in that, One side of the thread bush (4) close to the support plate (1) is provided with a supporting roller (5), one end of the first connecting rod (7) is hinged with the main table plate (9), and one end of the first connecting rod (7) is hinged with the thread bush (4).
  4. 4. The utility model relates to a multifunctional small table board for track traffic, which is characterized in that, One end of the connecting support (8) is fixedly connected with the support plate (1), and the other end of the connecting support (8) is hinged with the main table plate (9).
  5. 5. The utility model relates to a multifunctional small table board for track traffic, which is characterized in that, A first limiting guide groove (19) and a second limiting guide groove (20) are formed in the first fixing support (16), a through hole (22) is formed in the first fixing plate (21), a hinge seat (17) is fixedly arranged on one side, close to the driving gear (13), of the first fixing support (16), a Z-shaped connecting rod (18) is rotationally connected with the hinge seat (17), one end of the Z-shaped connecting rod (18) is meshed with the driving gear (13), and the other end of the Z-shaped connecting rod (18) is located at the top of the pressing plate (27).
  6. 6. The utility model relates to a multifunctional small table board for track traffic, which is characterized in that, A group of second connecting rods (24) are slidably arranged in each group of limiting guide grooves II (20), the control push heads (23) are fixedly connected with the ends of the second connecting rods (24), the first connecting springs (25) are sleeved on the outer walls of the second connecting rods (24), and the two ends of the first connecting springs (25) are fixedly connected with the control push heads (23) and the first fixing supports (16) respectively.
  7. 7. The utility model relates to a multifunctional desk board for track traffic, which is characterized in that, The clamp plate (27) bottom is fixed to be equipped with U type spare one (28), U type spare two (32) outer wall is fixed to be equipped with fixed plate two (29), U type spare one (28) slide locates U type spare two (32), and be connected through coupling spring two (30) between U type spare one (28) and the U type spare two (32) inner wall, two sets of mounting groove (26) have been seted up to fixed plate one (21) top symmetry, coupling spring three (31) one end is fixed to be located in mounting groove (26), coupling spring three (31) other end and fixed plate two (29) fixed connection, control lever (33) one end and U type spare two (32) bottom fixed connection, control lever (33) other end activity is passed through-hole (22), two sets of triangle dop (34) symmetrical fixed one end of locating control lever (33) pass through-hole (22), L type connecting rod (35) horizontal segment and control lever (33) front side outer wall rotation are connected, cam follower (36) are installed to the right angle end in the vertical section bottom of L type connecting rod (35).
  8. 8. The utility model relates to a multifunctional desk board for track traffic, which is characterized in that, Two ends of a third connecting rod (37) are movably arranged in two groups of first limiting guide grooves (19) respectively, two groups of inclined push heads (38) are symmetrically formed by upward extending of the top of the third connecting rod (37), one end of a connecting piece (39) is rotationally connected with the front side of the third connecting rod (37), a rolling bearing (40) is movably arranged at the other end of the connecting piece (39), and a first blocking block (43) is fixedly arranged on one side of a control rod (33).

Description

Multifunctional small table plate for rail transit Technical Field The invention relates to the technical field of high-speed rail equipment, in particular to a multifunctional small table plate for rail transit. Background In rail transit (e.g., high-speed rail, subway, train) cars, a foldable table mounted behind a seat is an important facility for passengers to place items, dining, or office. However, such small desktops of the prior art are commonly subject to the following significant drawbacks: 1. the function is single, the size is fixed, most small table boards are single fixed-size board bodies, and the area after being unfolded is not adjustable. When a passenger needs to place more articles and use larger electronic equipment or a plurality of people to eat together, the table board with the fixed size often has insufficient space, and cannot meet diversified use requirements. 2. The stability of the extensible table board is poor, a small number of small table boards with the extending function are adopted, and the auxiliary table boards of the small table boards are usually in simple drawing or folding structures. The structure is very easy to retract or slide accidentally due to external force or inertia in the running process of the train, especially in jolt, brake or turning, so that articles placed on the table board slide down or even are damaged, potential safety hazards exist, and the user experience is poor. 3. The space utilization rate is contradictory with the structure that in the limited carriage space, the small desk plate needs to be stored as compactly as possible when not in use, and can provide enough and stable use area when unfolded. The existing design often has difficulty in achieving the two points, and especially after the extending function is added, the structure is easy to become complicated and heavy, and the reliability is easy to be reduced. Accordingly, the present invention provides a multi-functional tablet for rail transit that addresses one or more of the problems set forth above. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a multifunctional small table plate for rail transit, which aims to solve the problems in the prior art. (II) technical scheme The drive motor is arranged on the support plate, a threaded rod is arranged on an output shaft of the drive motor, a thread bush is sleeved on the outer wall of the threaded rod, the main table plate is arranged on the support plate through a connecting support, the thread bush is connected with the main table plate through a first connecting rod, and the auxiliary table plate is movably arranged in the main table plate through an intermittent control assembly. Preferably, the first fixing blocks are fixedly connected with the support plate, one end of the threaded rod is rotatably connected with one fixing block, the other end of the threaded rod is fixedly connected with the output shaft of the driving motor, and the output shaft of the driving motor movably penetrates through the first fixing block at the bottom. Preferably, the support roller is installed to one side of the thread bush near the mounting plate, and first connecting rod one end is articulated with the main table, and first connecting rod one end is articulated with the thread bush. Preferably, one end of the connecting support is fixedly connected with the support plate, and the other end of the connecting support is hinged with the main table plate. Preferably, a plurality of groups of control grooves are formed in the bottom of the inner wall of the main table plate at equal intervals, a bottom plate is fixedly arranged at the bottom of the auxiliary table plate, an avoidance groove is reserved between the bottom plate bottom and the bottom of the inner wall of the main table plate, and the walking roller is arranged on the outer wall of the auxiliary table plate through a driving shaft. Preferably, the intermittent control assembly comprises a driving gear which is fixedly sleeved on the outer wall of one side, far away from the walking roller, of the driving shaft, two groups of first fixing supports are fixedly connected with the bottom plate, and the first fixing plate is fixedly arranged between the two groups of first fixing supports. Preferably, the first fixing support is provided with a first limit guide groove and a second limit guide groove, the first fixing plate is provided with a through hole, one side, close to the driving gear, of the first fixing support is fixedly provided with a hinge seat, the Z-shaped connecting rod is rotationally connected with the hinge seat, one end of the Z-shaped connecting rod is meshed with the driving gear, and the other end of the Z-shaped connecting rod is located at the top of the pressing plate. Preferably, a group of second connecting rods are slidably arranged in each group of second limiting guide grooves, the co