CN113942531A - Cab apron device for through passage - Google Patents
Cab apron device for through passage Download PDFInfo
- Publication number
- CN113942531A CN113942531A CN202111269303.XA CN202111269303A CN113942531A CN 113942531 A CN113942531 A CN 113942531A CN 202111269303 A CN202111269303 A CN 202111269303A CN 113942531 A CN113942531 A CN 113942531A
- Authority
- CN
- China
- Prior art keywords
- rotating
- locking
- piece
- cab apron
- locking piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/20—Communication passages between coaches; Adaptation of coach ends therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to a cab apron device for a through passage, which comprises a cab apron, a cab apron connecting rod mechanism and a locking mechanism; the cab apron comprises an installation area and a functional area, and the functional area is provided with an operation hole; the locking mechanism comprises a locking piece arranged on the cab apron connecting rod mechanism, a locking piece arranged on the bottom surface of the cab apron and a rotating assembly arranged on the bottom surface of the cab apron; the rotating assembly comprises a rotating piece connected to the bottom surface of the cab apron in a rotating mode and a rotating operation piece arranged in the operation hole, and the rotating operation piece drives the rotating piece to rotate between a first position and a second position; a pulling piece is connected between the rotating piece and the locking piece; an elastic locking piece is connected between the locking piece and the bottom surface of the cab apron; when the rotating piece rotates to the first position, the locking piece is clamped and locked by the locking piece under the action of the elastic force provided by the elastic locking piece; when the rotating piece rotates to the second position, the pulling piece pulls the locking piece to the unlocking state. The installation and the disassembly operation of the cab apron device for the through passage are carried out above the cab apron, the operation is convenient, and the cooperation of a plurality of people is not needed.
Description
Technical Field
The invention belongs to the technical field of rail transit equipment, and particularly relates to a cab apron device for a through passage.
Background
The rail vehicle through passage is an important part for realizing the connection and the communication between two vehicles, the cab apron device is an important component part of the through passage, the cab apron device is usually arranged between the two vehicles through a locking mechanism, and the design of the locking mechanism directly influences the convenience of mounting and dismounting the cab apron and the reliability of using the cab apron.
Patent CN202574232U discloses a train through passage cab apron, wherein a locking mechanism is arranged between a cab apron body and a cab apron connecting rod, when the through passage cab apron is installed, the pull rods of the locking mechanisms on both sides of the cab apron are pulled outwards, the pull rods are released after the connecting rod lock pins are inserted into the installation holes of the locking mechanisms, and under the action of a compression spring, the connecting rod lock pins are locked in the locking mechanisms by the lock tongues in the locking mechanisms, so as to realize locking. However, since both sides of the ferry are covered by the inner side guard (or the folding shed skirt) of the through passage, the ferry device needs to lift the side guard (or the folding shed skirt) during installation, the installation operation is inconvenient, and two persons are usually needed to cooperate to complete the installation, so the same problem is faced during disassembly and maintenance. Patent CN108891433A discloses a novel ferry plate device for through passage, the principle of the locking mechanism adopted by the ferry plate device is similar to that of the locking mechanism of patent CN202574232U, the difference is that the locking is realized by using the tension action of an extension spring, but the installation and maintenance are inconvenient. Patent CN109720363A discloses a ferry plate device with a meshing type locking mechanism, which designs a meshing type locking mechanism, however, the locking mechanism has many parts and is too complex, which reduces the reliability of the product, and also has the problem of inconvenient installation and maintenance.
In short, when the conventional cab apron device for the through passage is mounted and dismounted, the cab apron device usually needs to be operated on two sides, and the operation is extremely inconvenient.
Disclosure of Invention
The invention provides a through-passage cab apron device, aiming at the problem that the existing through-passage cab apron device is inconvenient to install and disassemble.
The invention provides a ferry plate device for a through passage, which comprises: the cab apron, cab apron link mechanism and locking mechanism set between cab apron and cab apron link mechanism that set up under the cab apron;
the cab apron comprises mounting areas positioned on two longitudinal sides and a functional area positioned between the two mounting areas, and the functional area of the cab apron is provided with an operating hole which penetrates from the bottom surface to the top surface of the cab apron;
the locking mechanism includes:
the locking piece is arranged on the cab apron connecting rod mechanism;
the locking piece is arranged on the bottom surface of the cab apron and used for clamping and locking the locking piece;
the rotating assembly is installed on the bottom surface of the cab apron and comprises:
the rotating piece is rotatably connected to the bottom surface of the cab apron;
the rotating operation piece is arranged in the operation hole and is connected with the rotating piece so as to drive the rotating piece to rotate between a first position and a second position;
the pulling piece is connected between the rotating piece and the clamping and locking piece;
the elastic locking piece is connected between the locking piece and the bottom surface of the cab apron;
when the rotating piece rotates to the first position, the locking piece is clamped and locked by the clamping and locking piece under the action of elastic force provided by the elastic locking piece; when the rotating member rotates to the second position, the rotating member drives the pulling member to move towards the direction close to the rotating member, and the pulling member pulls the locking member to the unlocking state.
In the technical scheme, the installation and disassembly operations of the cab apron device for the through passage are carried out above the cab apron, a side guard plate or a folding shed skirt edge and the like in the through passage do not need to be lifted, and the operation is convenient without the cooperation of multiple persons.
In some embodiments, the rotating assembly further comprises a mounting frame mounted on the bottom surface of the ferry plate, the rotating member is positioned in the mounting frame, the rotating axis of the rotating member is perpendicular to the bottom surface of the ferry plate, the bottom of the rotating member is rotatably connected to the bottom of the mounting frame, and the rotating operation member is connected to the top of the rotating member. According to the technical scheme, the rotating connection between the rotating part and the cab apron is realized on the premise that the operation of the rotating operation part from the upper side of the cab apron is not hindered.
In some embodiments, the rotating member includes a rotating shaft portion and a rotating disc portion coaxially arranged, the rotating disc portion is arranged at the bottom end of the rotating shaft portion and is rotatably connected to the bottom of the mounting frame through a rotating connecting member, the pulling member is connected to the outer edge of the rotating disc portion, and the rotating operating member is connected to the top end of the rotating shaft portion. In the technical scheme, the pulling piece is connected to the outer edge of the turntable part, and can be driven to generate large-amplitude displacement through small-amplitude rotation of the rotating piece, so that the operation is more convenient; simultaneously, connect the top in pivot portion with the rotation operation spare, the drive swivel spare of being more convenient for is rotatory.
In some embodiments, the pulling member is a pulling rope, the outer periphery of the turntable portion is provided with a circumferential groove for the pulling rope to wind around the outer periphery of the turntable portion, the rotating assembly further comprises a limiting cover covering the outer side of the turntable portion, a limiting space for accommodating the pulling rope is formed between the limiting cover and the circumferential groove, and a through hole for the pulling rope to pass through is formed in the side portion of the limiting cover. In the technical scheme, the pull rope is used as the pulling piece, so that the pulling piece is beneficial to moving along with the rotating piece, and the pulling device is simple in structure and convenient to pull the locking piece; simultaneously, carry out spacing fixed to the stay cord through the cooperation of circumference recess and spacing cover, be favorable to guaranteeing stable in structure.
In some of these embodiments, the swivel joint spare is half tooth screw, and the axis of half tooth screw sets up with the rotation axis collineation of swivel joint spare, and half tooth screw includes nut, screw thread section and polished rod section that connects gradually, and half tooth screw stretches into the mounting bracket from the screw hole that the mounting bracket bottom was seted up in, and the nut is located the mounting bracket outward, screw thread section threaded connection in screw hole, and the mating holes that the polished rod section inserted the turntable portion bottom surface and seted up, and the periphery of polished rod section and the inner wall clearance fit of mating holes. According to the technical scheme, the half-thread screw is adopted as the rotary connecting piece, and the half-thread screw is matched with the matching hole formed in the bottom surface of the turntable part, so that the rotary connecting piece is conveniently connected into the mounting frame from the lower side of the cab apron.
In some embodiments, the rotation operation member includes a rotation portion that rotates within the operation hole, and a lock portion for restricting rotation of the rotation portion; the rotating shaft is arranged in a collinear way with the rotating shaft of the rotating part, and the rotating part is non-rotatably connected with the rotating part so as to drive the rotating part to rotate through the rotation of the rotating part; the locking part is fixedly connected with the rotating part and detachably connected with the cab apron. This technical scheme can drive the rotating member rotation through manual operation rotating operation spare, simple structure, reliability height.
In some embodiments, the operation hole is a circular hole, the rotating portion is cylindrical, and the outer peripheral surface of the rotating portion is in clearance fit with the hole wall of the operation hole.
In some embodiments, the rotating part of the rotating operation member is sleeved outside the rotating shaft part of the rotating member and slides along the rotating shaft part, a supporting spring is supported between the rotating part and the rotating part, the periphery of the rotating part is provided with a flange part abutted against the bottom surface of the cab apron, the locking part is arranged on the flange part and protrudes out of the flange part to abut against an abutting surface of the bottom surface of the cab apron, and the bottom surface of the cab apron is provided with a first locking groove and a second locking groove for accommodating the locking part; when the locking part is accommodated in the first locking groove, the rotating piece stops at the first position, and when the locking part is accommodated in the second locking groove, the rotating piece stops at the second position. In this technical scheme, lock portion hides in cab apron below, can reduce the influence to cab apron top surface outward appearance.
In some embodiments, the rotating shaft portion of the rotating member is square column-shaped, and the rotating portion of the rotating operation member is provided with a square hole matched with the rotating shaft portion of the rotating member.
In some embodiments, the middle part of the rotating shaft part is provided with a limiting step for blocking the rotating part from sliding downwards.
In some embodiments, the top of the rotating shaft part of the rotating member is provided with a position indicating line, the top surface of the transition plate is provided with a first mark and a second mark on the periphery of the operation hole, when the position indicating line is aligned with the first mark, the rotating member is located at the first position, and when the position indicating line is aligned with the second mark, the rotating member is located at the second position. This technical scheme, be convenient for confirm the position that the rotating member is located and ensure that the rotating member rotates to the position.
In some embodiments, the locking piece comprises a clamping part and a retaining part arranged on the upper part of the clamping part; the card latch fitting includes fixed mounting in the mounting groove of cab apron bottom surface and installs the lock box in the mounting groove, the locking hole that block portion and the anticreep portion that supply locking piece passed is seted up to the bottom of mounting groove, the lock box slides for the mounting groove along the extending direction of mounting groove, lock box one end is connected and is drawn the piece, elasticity locking piece is connected to the other end, the bottom of lock box is seted up and is supplied block portion and the anticreep portion of locking piece to pass and wear the mouth that takes off, it is close to one side and a bayonet socket that draws the piece to wear to take off the mouth, the bayonet socket can be gone into to the block portion card of locking piece, the anticreep portion of locking piece can not pass through the bayonet socket. The latch piece and the locking piece of the structure adopted by the technical scheme are convenient for unlocking and locking operations under the action of the pulling piece and the elastic locking piece.
In some embodiments, the elastic locking member is a locking spring, and the extension direction of the locking spring is the same as the extension direction of the mounting groove.
In some embodiments, the two groups of cab apron link mechanisms are respectively positioned below the two longitudinal ends of the cab apron and are symmetrically arranged relative to the rotating assembly; each cab apron link mechanism all installs a locking piece, and each locking piece all corresponds a card latch fitting, and two card latch fittings are connected in same rotating assembly through drawing the piece respectively, all are connected an elasticity locking piece between each card latch fitting and the cab apron bottom surface. According to the technical scheme, the two groups of cab apron connecting rod mechanisms are locked simultaneously through one rotating assembly, and the operation is more convenient.
In some embodiments, the two locking pieces are connected to the turntable part of the same rotating part through the same pull rope, the two ends of the pull rope are respectively connected with the two locking pieces, the middle part of the pull rope is wound in the circumferential groove of the turntable part and is contained in the limiting space between the limiting cover and the circumferential groove, and the opposite two side parts of the limiting cover are respectively provided with a through hole for stretching to pass through.
Based on the technical scheme, the installation and disassembly operations of the cab apron device for the through passage in the embodiment of the invention are carried out above the cab apron, a side guard plate or a folding shed skirt edge and the like in the through passage do not need to be lifted, and the operation is convenient without the cooperation of multiple persons.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a plan view of a gangway device according to an embodiment of the present invention in a locked state;
fig. 2 is a perspective view of a gangway flap apparatus according to an embodiment of the present invention in a locked state;
fig. 3 is a cross-sectional view of a ferry plate device for a through passage taken along line a-a of fig. 1;
fig. 4 is a cross-sectional view of the ferry plate device for a through passage taken along line B-B of fig. 3;
FIG. 5 is a schematic view of the ferry plate and locking mechanism of FIG. 2 in a locked position;
fig. 6 is a schematic view illustrating a state of a locking mechanism of the ferry plate device for a through passage according to an embodiment of the present invention when the rotary member is stopped at the first position;
FIG. 7 is an enlarged view of a portion of FIG. 6 at F;
FIG. 8 is a schematic view of a locking mechanism of the ferry plate device for a through passage according to an embodiment of the present invention when the rotary member is stopped at the second position;
FIG. 9 is an enlarged view of a portion of FIG. 8 at G;
FIG. 10 is an enlarged view of a portion of FIG. 3 at C;
FIG. 11 is a schematic view of the structure of the rotating member of FIG. 10;
FIG. 12 is a schematic structural view of the position-limiting cover of FIG. 10;
FIG. 13 is a schematic structural view of the rotational operator of FIG. 10;
FIG. 14 is a view showing a state where the rotating portion of the rotating operation member shown in FIG. 10 is slid down along the rotating shaft portion of the rotating member by operating the key;
FIG. 15 is an enlarged view of a portion of FIG. 3 at D;
FIG. 16 is an enlarged view of a portion of FIG. 4 at E;
fig. 17 is a schematic structural view of a lock case in a locking member according to an embodiment of the present invention.
In the figure:
1. a cab apron; 2. a pedal; 3. a cab apron link mechanism; 4. a locking mechanism; 5. operating a key;
11. an operation hole; 12. a first locking groove; 13. a second locking groove; 14. a first mark; 15. a second mark;
41. a resilient locking member; 42. a locking member; 43. a latch member; 44. pulling the piece; 45. a rotating assembly;
421. a fastening part; 422. an anti-drop part;
431. a lock case; 4311. putting on and taking off the opening; 4312. a bayonet; 432. mounting grooves; 4321. a locking hole;
451. a rotating member; 4511. a position indicating line; 4512. a rotating shaft part; 4513. a turntable part; 4514. a circumferential groove; 4515. a limiting step; 452. a rotational operation member; 4521. a rotating part; 4522. a flange portion; 4523. a lock section; 453. a mounting frame; 454. a rotating connector; 4541. a nut; 4542. a threaded segment; 4543. a polished rod segment; 455. a limiting cover; 4551. perforating; 456. supporting the spring.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in fig. 2 to facilitate the description of the invention and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 10, in an exemplary embodiment of a ferry plate device for a through passage according to the present invention, the ferry plate device for a through passage includes a ferry plate 1, a ferry plate link mechanism 3 disposed below the ferry plate 1, and a locking mechanism 4 disposed between the ferry plate 1 and the ferry plate link mechanism 3. The cab apron 1 comprises mounting areas positioned on two longitudinal sides and a functional area positioned between the two mounting areas, and the functional area of the cab apron 1 is provided with an operation hole 11 which penetrates from the bottom surface to the top surface of the cab apron 1. The locking mechanism 4 comprises a locking piece 42, a locking piece 43, a rotating component 45, a pulling piece 44 and an elastic locking piece 41; wherein, the locking piece 42 is arranged on the cab apron link mechanism 3; the locking piece 43 is arranged on the bottom surface of the cab apron 1 and is used for clamping and locking the locking piece 42; the rotating assembly 45 is mounted on the bottom surface of the ferry plate 1, and includes a rotating member 451 rotatably connected to the bottom surface of the ferry plate 1 and a rotating operation member 452 mounted in the operation hole 11, wherein the rotating operation member 452 is connected to the rotating member 451 to drive the rotating member 451 to rotate between a first position and a second position. The pulling member 44 is connected between the rotating member 451 and the catching member 43. The elastic locking member 41 is connected between the locking member 43 and the bottom surface of the apron 1. When the rotating member 451 rotates to the first position, the latch 43 latches the locking member 42 under the elastic force provided by the elastic locking member 41; when the rotating member 451 rotates to the second position, the rotating member 451 drives the pulling member 44 to move toward the rotating member 451, and the pulling member 44 pulls the locking member 43 to the unlocking state. The installation area of the cab apron 1 is a position for installing a side structure such as a skirt guard or a bellows skirt structure, and the functional area is a position for passengers to pass through. It should be noted that, as shown in fig. 1 and 2, the gangway cab apron device for the through passage further typically includes pedals 2, the pedals 2 are located on both lateral sides of the gangway apron 1, and the gangway link mechanism 3 is typically mounted to the pedals 2.
As shown in fig. 6 to 8, in the above exemplary embodiment, the installation and disassembly processes of the ferry plate device for a through passage are as follows: when the cab apron device for the through passage is installed, the cab apron link mechanism 3 is installed on the pedal 2, the pedal 2 is installed between two vehicle bodies, the rotating piece 451 is driven to rotate to the second position through the rotating operation piece 452 above the cab apron 1, the rotating piece 451 drives the pulling piece 44 to move towards the direction close to the rotating piece 451, the pulling piece 44 pulls the locking piece 43 to be in an unlocking state, the cab apron 1 is buckled above the cab apron link mechanism 3 at the moment, the locking piece 42 installed on the cab apron link mechanism 3 is opposite to the locking piece 43 installed on the cab apron 1, the rotating piece 451 is driven to rotate to the first position through the rotating operation piece 452 above the cab apron 1 at the moment, the locking piece 43 is clamped and locked with the locking piece 42 under the elastic force provided by the elastic locking piece 41, and the cab apron device for the through passage is in a locking state. When the cab apron 1 needs to be removed, the rotating member 451 is driven to rotate to the second position by the rotating operation member 452 above the cab apron 1, so that the locking member 43 is in an unlocking state, and at this time, the cab apron 1 can be removed from the cab apron link mechanism 3.
The installation and disassembly operations of the transition plate device for the through passage are all carried out above the transition plate 1, a side protection plate or a folding shed skirt edge and the like in the through passage do not need to be lifted, and the operation is convenient without the cooperation of multiple persons.
In order to facilitate the rotation of the rotating member 451 to the ferry plate 1 without interfering with the operation of the rotation operation member 452 from above the ferry plate 1, as shown in fig. 10, in the present embodiment, the rotating assembly 45 further includes a mounting frame 453 mounted on the bottom surface of the ferry plate 1, the rotating member 451 is located in the mounting frame 453, the rotation axis of the rotating member 451 is perpendicular to the bottom surface of the ferry plate 1, the bottom of the rotating member 451 is rotatably connected to the bottom of the mounting frame 453, and the rotation operation member 452 is connected to the top of the rotating member 451. The present embodiment is provided with the mounting frame 453 connecting the rotating member 451 from the bottom of the rotating member 451, and the rotation operating member 452 connecting to the top of the rotating member 451, so as to facilitate the operation of the rotation operating member 452 from above the gangway 1.
In this embodiment, as shown in fig. 10 and 11, the specific structure of the rotating member 451 is that, the rotating member 451 includes a rotating shaft portion 4512 and a rotating shaft portion 4513 coaxially disposed, the rotating shaft portion 4513 is disposed at a bottom end of the rotating shaft portion 4512 and rotatably connected to a bottom of the mounting frame 453 through a rotating connector 454, the pulling member 44 is connected to an outer edge of the rotating shaft portion 4513, and the rotating operation member 452 is connected to a top end of the rotating shaft portion 4512. In this embodiment, the pulling member 44 is connected to the outer edge of the turntable 4513, and the pulling member 44 can be driven to generate large displacement through small-amplitude rotation of the rotating member 451, which is more convenient for operation; meanwhile, the rotation operating member 452 is connected to the top end of the rotating shaft portion 4512, so that the rotation member 451 can be driven to rotate more conveniently.
In this embodiment, a specific structure of the pulling element 44 and a specific connection manner of the pulling element 44 and the turntable 4513 of the rotating element 451 are shown in fig. 10-12, the pulling element 44 is a pulling rope, a circumferential groove 4514 is formed on the outer circumference of the turntable 4513 for the pulling rope to wind around the outer circumference of the turntable 4513, the rotating assembly 45 further includes a limiting cover 455 covering the turntable 4513, a limiting space for accommodating the pulling rope is formed between the limiting cover 455 and the circumferential groove 4514, and a through hole 4551 for the pulling rope to pass through is formed on a side portion of the limiting cover 455. In this embodiment, the pulling member 44 is a pulling rope, which is advantageous to follow the movement of the rotating member 451, and has a simple structure to facilitate the pulling of the locking member 43. Meanwhile, in the embodiment, the circumferential groove 4514 is matched with the limit cover 455, so that the pull rope can be prevented from being separated from the circumferential groove 4514 in the process of rotating along with the rotating piece 451, and the structural stability can be guaranteed. It should be noted that a person skilled in the art may use another pulling member 44 such as a pull rod, as long as the pulling member moves with the rotating member 451 and pulls the locking member 43 to unlock the lock.
In this embodiment, a specific rotary connection mode between the turntable portion 4513 of the rotating member 451 and the mounting bracket 453 is as shown in fig. 10, the rotary connection member 454 is a half-thread screw, an axis of the half-thread screw is arranged in a collinear manner with a rotation axis of the rotating member 451, the half-thread screw includes a nut 4541, a threaded portion 4542 and a polish rod segment 4543 which are sequentially connected, the half-thread screw extends into the mounting bracket 453 from a threaded hole formed in the bottom of the mounting bracket 453, the nut 4541 is located outside the mounting bracket 453, the threaded portion 4542 is in threaded connection with the threaded hole formed in the bottom of the mounting bracket 453, the polish rod segment 4543 is inserted into a matching hole formed in the bottom surface of the turntable portion 4513, and the periphery of the polish rod segment 4543 is in clearance fit with an inner wall of the matching hole. In this embodiment, a half-thread screw is used as the rotary connection member 454, and the half-thread screw is matched with a matching hole formed in the bottom surface of the turntable portion 4513, so that the rotary member 451 is rotatably connected to the mounting frame 453 from below the cab apron 1.
In this embodiment, a specific structure of the rotation operating member 452 and a specific connection manner of the rotation operating member 451 are as shown in fig. 10 and 13, and the rotation operating member 452 includes a rotation portion 4521 that rotates in the operation hole 11, and a lock portion 4523 that restricts rotation of the rotation portion 4521; the rotation axis of the rotating part 4521 is arranged in line with the rotation axis of the rotating member 451, and the rotating part 4521 is non-rotatably connected to the rotating member 451 (specifically, connected to the top of the rotating shaft part 4512 of the rotating member 451) to rotationally drive the rotating member 451 to rotate by the rotating part 4521 itself; the locking portion 4523 is fixedly attached to the swivel portion 4521 and is detachably connected to the cab apron 1. The rotation operating element 452 with the structure can drive the rotation element 451 to rotate through manual operation, and has simple structure and high reliability; moreover, the size is small, a large operation hole 11 is not needed during installation, and the influence on the appearance of the top surface of the cab apron 1 is small; in addition, can stop rotating member 451 in first position or second position department through the locking part 4523 that sets up, when rotating member 451 stopped in the first position, can guarantee that latch 43 and locking piece 42 are in the locked state all the time, when rotating member 451 stopped in the second position, be convenient for install and disassemble the operation, and one person can accomplish the installation and disassemble the operation, need not other people's cooperation. In this embodiment, the operation hole 11 is a circular hole, the rotating portion 4521 is cylindrical, and the outer peripheral surface of the rotating portion 4521 is in clearance fit with the hole wall of the operation hole 11, so that the rotating portion 4521 can rotate in the operation hole 11, and the influence on the appearance of the top surface of the cab apron 1 can be reduced.
Further, in order to hide the locking portion 4523 below the ferry plate 1 to reduce the influence on the appearance of the top surface of the ferry plate 1, as shown in fig. 9, 10, 13 and 14, in the present embodiment, the rotating portion 4521 of the rotating operation member 452 is sleeved outside the rotating portion 4512 of the rotating member 451 and slides along the rotating portion 4512, the supporting spring 456 is supported between the rotating portion 4521 and the rotating portion 4513, the outer periphery of the rotating portion 4521 is provided with the flange portion 4522 abutting against the bottom surface of the ferry plate 1, the locking portion 4523 is provided on the flange portion 4522 and protrudes from the flange portion 4522 for abutting against the abutting surface of the bottom surface of the ferry plate 1, and the bottom surface of the ferry plate 1 is provided with the first locking groove 12 and the second locking groove 13 for accommodating the locking portion 4523; here, when the locking portion 4523 is accommodated in the first locking groove 12, the rotary member 451 is stopped at the first position, and when the locking portion 4523 is accommodated in the second locking groove 13, the rotary member 451 is stopped at the second position. When the rotation operation member 452 needs to be rotated, the rotation portion 4521 is pressed downward, so that the lock portion 4523 is disengaged from the first lock groove 12 or the second lock groove 13, and the rotation restriction on the rotation portion 4521 is released; when the rotating member 451 rotates to the first position or the second position and the rotation of the rotating portion 4521 needs to be limited, the rotating portion 4521 is loosened, the rotating portion 4521 slides up along the rotating portion 4512 under the elastic force of the supporting spring 456 until the flange portion 4522 abuts against the bottom surface of the cab apron 1, and at this time, the locking portion 4523 is accommodated in the locking groove corresponding to the current position, so as to lock the rotating portion 4521. Meanwhile, in the present embodiment, the flange portion 4522 is provided to shield a gap between the rotating portion 4521 and the operation hole 11, and a dust-proof effect can be obtained. As shown in fig. 14, when the rotary 4521 is pressed down, the pressing operation can be performed using the matching operation key 5, so that the possibility of non-professional operation can be reduced and safety can be improved. As shown in fig. 10, 11 and 13, in the present embodiment, a specific connection manner between the rotating portion 4521 of the rotation operating member 452 and the rotating shaft portion 4512 of the rotation member 451 is as follows: the rotating shaft portion 4512 of the rotating element 451 is in a square column shape, and the rotating portion 4521 of the rotating operation element 452 is provided with a square hole that fits with the rotating shaft portion 4512 of the rotating element 451. It is understood that a person skilled in the art may also realize the connection between the rotating portion 4521 of the rotation operating member 452 and the rotating shaft portion 4512 of the rotation member 451 by using a key connection or the like. It is further noted that, as shown in fig. 10, 11 and 13, a middle portion of the rotating shaft portion 4512 is provided with a limit step 4515 for blocking the downward sliding of the rotating portion 4521, so as to prevent the rotating portion 4521 from sliding down along the rotating shaft portion 4512 when the rotating portion 4521 is rotated, thereby facilitating the rotating operation. In addition, in order to facilitate the confirmation of the position of the rotary member 451 and to ensure that the rotary member 451 is rotated to the position, as shown in fig. 7 and 9, a position indicating line 4511 is provided at the top of the rotation shaft portion 4512 of the rotary member 451, the top surface of the bridge 1 is provided with a first mark 14 and a second mark 15 on the periphery of the operation hole 11, the rotary member 451 is located at the first position when the position indicating line 4511 is aligned with the first mark 14, and the rotary member 451 is located at the second position when the position indicating line 4511 is aligned with the second mark 15.
In this embodiment, the specific structure and connection manner of the locking member 42 and the locking member 43 are shown in fig. 5 and 15-17, and the locking member 42 includes an engaging portion 421 and an anti-falling portion 422 disposed on the upper portion of the engaging portion 421; the locking piece 43 comprises a mounting groove 432 fixedly mounted on the bottom surface of the cab apron 1 and a lock box 431 mounted in the mounting groove 432, a locking hole 4321 for allowing the clamping portion 421 and the anti-falling portion 422 of the locking piece 42 to pass through is formed in the bottom of the mounting groove 432, the lock box 431 slides relative to the mounting groove 432 along the extending direction of the mounting groove 432, one end of the lock box 431 is connected with the pulling piece 44, the other end of the lock box 431 is connected with the elastic locking piece 41, a penetrating and releasing port 4311 for allowing the clamping portion 421 and the anti-falling portion 422 of the locking piece 42 to pass through is formed in the bottom of the lock box 431, one side of the penetrating and releasing port 4311 close to the pulling piece 44 is communicated with a bayonet 4312, the clamping portion 421 of the locking piece 42 can be clamped into the bayonet 4312, and the anti-falling portion 422 of the locking piece 42 cannot pass through the bayonet 4312. When unlocking, as shown in fig. 8, the pulling member 44 pulls the lock box 431 to move along the mounting groove 432 to the direction close to the pulling member 44, so that the insertion/removal port 4311 of the lock box 431 is opposite to the locking hole 4321 of the mounting groove 432, and when the cab apron 1 is buckled on the cab apron link mechanism 3, the engaging portion 421 and the disengagement preventing portion 422 of the locking member 42 sequentially pass through the locking hole 4321 of the mounting groove 432 and the insertion/removal port 4311 of the lock box 431; during locking, as shown in fig. 6, the lock case 431 moves toward the elastic locking member 41 along the mounting groove 432 by the elastic force of the elastic locking member 41, so that the bayonet 4312 of the lock case 431 faces the locking hole 4321 of the mounting groove 432, and the bayonet 4312 of the lock case 431 is engaged with the engaging portion 421 of the locking member 42, so that the anti-disengaging portion 422 of the locking member 42 cannot pass through the bayonet 4312, and the anti-disengaging portion 422 of the locking member 42 is restricted in the lock case 431, thereby engaging and locking the locking member 43 and the locking member 42. The above-described structure of the locking member 43 and the locking member 42 facilitates the unlocking and locking operations by the pulling member 44 and the elastic locking member 41. It will be appreciated that other configurations of the latch 43 and locking member 42 may be used by those skilled in the art, such as: the locking piece with a rotary coupler knuckle and the locking piece with a clamping part matched with the rotary coupler knuckle are adopted. In addition, it should be noted that a felt is disposed in the mounting groove 432 to prevent noise caused by friction when the lock case 431 moves along the mounting groove 432.
In this embodiment, as shown in fig. 15, the elastic locking member 41 is a locking spring, and the expansion and contraction direction of the locking spring is the same as the extending direction of the mounting groove 432. It will be appreciated that other resilient locking members 41 may be used by those skilled in the art, provided that the latch member 43 is urged under its own resilience to snap lock the locking member 42.
Since the ferry plate link mechanisms 3 are usually two sets, as shown in fig. 2, in this embodiment, the two sets of ferry plate link mechanisms 3 are respectively located below the two longitudinal ends of the ferry plate 1 and symmetrically arranged relative to the rotating component 45, each ferry plate link mechanism 3 is provided with a locking component 42, each locking component 42 corresponds to one locking component 43, the two locking components 43 are respectively connected to the same rotating component 45 through a pulling component 44, and an elastic locking component 41 is connected between each locking component 43 and the bottom surface of the ferry plate 1. In the embodiment, two groups of cab apron link mechanisms 3 are locked simultaneously through one rotating assembly 45, so that the operation is more convenient. Specifically, in this embodiment, as shown in fig. 6 to 9, two locking pieces 43 are connected to the turntable 4513 of the same rotating member 451 through the same pulling rope, two ends of the pulling rope are respectively connected to the two locking pieces 43, a middle portion of the pulling rope is wound around the circumferential groove 4514 of the turntable 4513 and is accommodated in the limiting space between the limiting cover 455 and the circumferential groove 4514, and two opposite side portions of the limiting cover 455 are respectively provided with a through hole 4551 through which the pulling rope passes.
The following describes a specific operation process of an embodiment of the ferry plate device for a through passage according to the present invention with reference to fig. 3, 4, 6-9:
(1) installation process
When the vehicle is mounted, the cab link 3 is mounted on the pedal 2, the pedal 2 is mounted between two vehicle bodies, the rotating part 4521 of the rotation operating member 452 is pressed down from above the cab 1 by operating the key 5, the locking part 4523 is disengaged from the first locking groove 12 to release the rotation restriction of the rotating part 4521, the operating key 5 is rotated in the second position direction to rotate the rotating part 4521 of the rotation operating member 452, the rotating part 4521 of the rotation operating member 452 rotates the rotation member 451, the lock case 431 is pulled by the pulling rope to move in the direction approaching the rotation assembly 45 along the mounting groove 432 along the rotation part 4513 of the rotation member 451 along with the rotation of the turntable part 4513 of the rotation operating member 451, when the position indicating line 4511 at the top of the rotation member 451 is aligned with the second mark 15, the operating key 5 is removed, the rotating part 4521 of the rotation operating member 452 slides up along the rotating part 4512 of the rotation member 451 under the elastic force of the supporting spring 456 until the flange 4522 of the rotation operating member 452 abuts against the bottom surface of the cab 1, at this time, the locking portion 4523 of the rotation operation member 452 is accommodated in the second locking groove 13 to lock the rotation operation member 452, the insertion/removal port 4311 of the lock case 431 is opposed to the locking hole 4321 of the installation groove 432, the cab apron 1 is fastened to the cab apron link mechanism 3, and the engaging portion 421 and the removal preventing portion 422 of the locking member 42 sequentially pass through the locking hole 4321 of the installation groove 432 and the insertion/removal port 4311 of the lock case 431; the rotating portion 4521 of the rotation operating member 452 is pressed down from above the ferry plate 1 again by the operation key 5, the lock portion 4523 is disengaged from the second lock groove 13 to release the rotation restriction of the rotating portion 4521, the operation key 5 is rotated in the first position direction to rotate the rotating portion 4521 of the rotation operating member 452, the rotating portion 4521 of the rotation operating member 452 rotates the rotating member 451, the pulling rope is released along with the rotation of the rotating portion 4513 of the rotating member 451, the lock case 431 moves in the direction of approaching the locking spring along the mounting groove 432 by the elastic force of the locking spring, when the position indicating line 4511 at the top of the rotating member 451 is aligned with the first mark 14, the operation key 5 is removed, the rotating portion 4521 of the rotation operating member 452 slides up along the rotating portion 4512 of the rotating member 451 by the elastic force of the supporting spring 456 until the flange portion 4522 of the rotation operating member 452 abuts against the bottom surface of the ferry plate 1, at this time, the lock portion 4523 of the rotation operating member 452 is accommodated in the first lock groove 12, when the rotation operation member 452 is locked, the bayonet 4312 of the lock case 431 is engaged with the engaging portion 421 of the locking member 42, and the coming-off preventing portion 422 of the locking member 42 cannot pass through the bayonet 4312, so that the coming-off preventing portion 422 of the locking member 42 is restricted in the lock case 431, the locking of the locking member 42 is achieved, and the through passage flight apparatus is in a locked state.
(2) Dismantling process
When the cab apron 1 needs to be removed, the rotating part 4521 of the rotation operating member 452 is pressed down from above the cab apron 1 by the operating key 5, the locking part 4523 is disengaged from the first locking groove 12 to release the rotation restriction on the rotating part 4521, the operating key 5 is rotated in the second position direction to drive the rotating part 4521 of the rotation operating member 452 to rotate, the rotating part 4521 of the rotation operating member 452 drives the rotation member 451 to rotate, the lock case 431 is pulled by the pulling rope to move in the direction approaching the rotation assembly 45 along the mounting groove 432 along with the rotation of the rotating part 4513 of the rotation member 451, when the position indication line 4511 at the top of the rotation member 451 is aligned with the second mark 15, the operating key 5 is removed, the rotating part 4521 of the rotation operating member 452 slides up along the rotating part 4512 of the rotation member 451 under the elastic force of the supporting spring 456 until the flange 4522 of the rotation operating member 452 abuts against the bottom surface of the cab apron 1, at this time, the locking part 4523 of the rotation operating member 452 is accommodated in the second locking groove 13, when the rotation operation piece 452 is locked, the insertion/removal port 4311 of the lock case 431 is opposite to the locking hole 4321 of the mounting groove 432, and the cab apron 1 can be removed from the cab apron link mechanism 3.
Through the description of the embodiments of the through-passage gangway device of the present invention, it can be seen that the through-passage gangway device of the present invention has at least one or more of the following advantages:
1. the installation and disassembly operations of the cab apron device for the through passage are carried out above the cab apron 1, a side guard plate or a folding shed skirt edge and the like in the through passage do not need to be lifted, and the operation is convenient because of no cooperation of multiple persons;
2. the cab apron device for the through passage is simple in structure, small in influence on the top surface of the cab apron 1, light and high in reliability.
Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. Cab apron device for through passage includes: a cab apron, a cab apron connecting rod mechanism arranged below the cab apron and a locking mechanism arranged between the cab apron and the cab apron connecting rod mechanism,
the cab apron comprises mounting areas positioned at two longitudinal sides and a functional area positioned between the two mounting areas, and the functional area of the cab apron is provided with an operation hole which penetrates from the bottom surface to the top surface of the cab apron;
the locking mechanism includes:
a locking member mounted to the cab apron link mechanism;
the locking piece is arranged on the bottom surface of the cab apron and used for clamping and locking the locking piece;
the rotating assembly is installed on the bottom surface of the cab apron and comprises:
the rotating piece is rotatably connected to the bottom surface of the cab apron;
the rotating operation piece is arranged in the operation hole and is connected with the rotating piece so as to drive the rotating piece to rotate between a first position and a second position;
the pulling piece is connected between the rotating piece and the clamping and locking piece;
the elastic locking piece is connected between the locking piece and the bottom surface of the cab apron;
when the rotating piece rotates to the first position, the locking piece is clamped and locked by the locking piece under the action of the elastic force provided by the elastic locking piece; when the rotating piece rotates to the second position, the rotating piece drives the pulling piece to move towards the direction close to the rotating piece, and the pulling piece pulls the locking piece to be in an unlocking state.
2. The ferry plate apparatus for a through passage of claim 1, wherein the rotating assembly further comprises a mounting bracket mounted to a bottom surface of the ferry plate, the rotating member is located in the mounting bracket, a rotation axis of the rotating member is perpendicular to the bottom surface of the ferry plate, a bottom of the rotating member is rotatably coupled to the bottom of the mounting bracket, and the rotation operating member is coupled to a top of the rotating member.
3. The ferry plate device for the through passage of claim 2, wherein the rotating member comprises a rotating shaft portion and a rotating disc portion coaxially arranged, the rotating disc portion is arranged at the bottom end of the rotating shaft portion and rotatably connected to the bottom of the mounting frame through a rotating connecting member, the pulling member is connected to the outer edge of the rotating disc portion, and the rotating operation member is connected to the top end of the rotating shaft portion.
4. The ferry plate device for the through passage according to claim 3, wherein the pulling member is a pulling rope, the outer periphery of the turntable portion is provided with a circumferential groove for the pulling rope to wind around the outer periphery of the turntable portion, the rotating assembly further comprises a limiting cover covering the outer side of the turntable portion, a limiting space for accommodating the pulling rope is formed between the limiting cover and the circumferential groove, and a through hole for the pulling rope to pass through is formed in a side portion of the limiting cover.
5. The cab apron device for the through passage according to claim 3, wherein the rotary connecting member is a half-thread screw, an axis of the half-thread screw is arranged in a collinear manner with a rotation axis of the rotary member, the half-thread screw comprises a nut, a thread section and a polished rod section which are sequentially connected, the half-thread screw extends into the mounting frame from a thread hole formed in the bottom of the mounting frame, the nut is located outside the mounting frame, the thread section is in threaded connection with the thread hole, the polished rod section is inserted into a matching hole formed in the bottom surface of the turntable section, and the periphery of the polished rod section is in clearance fit with the inner wall of the matching hole.
6. The ferry plate device for a through passage according to any one of claims 1 to 5, wherein the rotation operation member includes a rotation portion rotating within the operation hole, and a lock portion for restricting rotation of the rotation portion; the rotating part is connected to the rotating part in a non-rotatable mode so as to drive the rotating part to rotate through rotation of the rotating part; the locking part is fixedly connected with the rotating part and detachably connected with the cab apron.
7. The ferry plate device for a through passage according to claim 6, wherein a rotating portion of the rotation operating member is sleeved outside the rotating portion of the rotating member and slides along the rotating portion, a support spring is supported between the rotating portion and the rotating portion, a flange portion abutting against a bottom surface of the ferry plate is provided on an outer periphery of the rotating portion, the lock portion is provided on the flange portion and protrudes from an abutting surface of the flange portion for abutting against the bottom surface of the ferry plate, and a first lock groove and a second lock groove for accommodating the lock portion are provided on the bottom surface of the ferry plate; when the locking part is accommodated in the first locking groove, the rotating piece stops at the first position, and when the locking part is accommodated in the second locking groove, the rotating piece stops at the second position.
8. The ferry plate device for a through passage according to claim 1, wherein the locking member includes an engaging portion and a coming-off preventing portion provided at an upper portion of the engaging portion; the locking piece comprises a mounting groove fixedly mounted on the bottom surface of the cab apron and a locking box mounted in the mounting groove, a locking hole for the clamping part and the anti-falling part of the locking piece to pass through is formed in the bottom of the mounting groove, the locking box slides relative to the mounting groove along the extending direction of the mounting groove, one end of the locking box is connected with the pulling piece, the other end of the locking box is connected with the elastic locking piece, a penetrating and releasing port for the clamping part and the anti-falling part of the locking piece to pass through is formed in the bottom of the locking box, one side, close to the pulling piece, of the penetrating and releasing port is communicated with a bayonet, the clamping part of the locking piece can be clamped into the bayonet, and the anti-falling part of the locking piece cannot pass through the bayonet; the elastic locking piece is a locking spring, and the extension direction of the locking spring is the same as the extension direction of the mounting groove.
9. The ferry plate device for a through passage according to claim 1 or 4, wherein the ferry plate link mechanisms are provided in two groups, and the two groups of ferry plate link mechanisms are respectively positioned below the two longitudinal ends of the ferry plate and are symmetrically arranged relative to the rotating assembly; each cab apron link mechanism all installs one the locking piece, each the locking piece all corresponds one the card latch piece, two the card latch piece passes through respectively draw the piece to be connected in same the rotating component, each the card latch piece with all connect one between the cab apron bottom surface elasticity locking piece.
10. The ferry plate device for a through passage according to claim 9, wherein the two locking members are connected to the same turntable portion of the rotating member through the same pull cord, the two ends of the pull cord are connected to the two locking members, respectively, the middle portion of the pull cord is wound around the circumferential groove of the turntable portion and is accommodated in the limiting space between the limiting cover and the circumferential groove, and the opposite two side portions of the limiting cover are respectively provided with a through hole through which the pull cord passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269303.XA CN113942531B (en) | 2021-10-29 | 2021-10-29 | Cab apron device for through passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269303.XA CN113942531B (en) | 2021-10-29 | 2021-10-29 | Cab apron device for through passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113942531A true CN113942531A (en) | 2022-01-18 |
| CN113942531B CN113942531B (en) | 2022-09-30 |
Family
ID=79336984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269303.XA Active CN113942531B (en) | 2021-10-29 | 2021-10-29 | Cab apron device for through passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113942531B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007022213A (en) * | 2005-07-13 | 2007-02-01 | Kinki Sharyo Co Ltd | Gangway footplate device of railway vehicle |
| CN202574232U (en) * | 2012-05-11 | 2012-12-05 | 株洲九方制动设备有限公司 | Gangway foot plate of train |
| KR20160144705A (en) * | 2015-06-09 | 2016-12-19 | 송한나 | Connecting apparatus a cabin to a near cabin of a pass way for a Train |
| CN206427033U (en) * | 2016-12-30 | 2017-08-22 | 比亚迪股份有限公司 | The cab apron assembly of train run-through channel and the train run-through channel with it |
| CN107364460A (en) * | 2017-07-17 | 2017-11-21 | 青岛欧特美交通装备有限公司 | A kind of cab apron device with Quick locking function |
| CN108891433A (en) * | 2018-08-06 | 2018-11-27 | 青岛欧特美交通装备有限公司 | A kind of novel cab apron device of run-through channel |
| CN211335980U (en) * | 2019-10-31 | 2020-08-25 | 比亚迪股份有限公司 | Rail vehicle |
| CN112622953A (en) * | 2020-12-31 | 2021-04-09 | 欧特美交通科技股份有限公司 | Through-passage cab apron device |
-
2021
- 2021-10-29 CN CN202111269303.XA patent/CN113942531B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007022213A (en) * | 2005-07-13 | 2007-02-01 | Kinki Sharyo Co Ltd | Gangway footplate device of railway vehicle |
| CN202574232U (en) * | 2012-05-11 | 2012-12-05 | 株洲九方制动设备有限公司 | Gangway foot plate of train |
| KR20160144705A (en) * | 2015-06-09 | 2016-12-19 | 송한나 | Connecting apparatus a cabin to a near cabin of a pass way for a Train |
| CN206427033U (en) * | 2016-12-30 | 2017-08-22 | 比亚迪股份有限公司 | The cab apron assembly of train run-through channel and the train run-through channel with it |
| CN107364460A (en) * | 2017-07-17 | 2017-11-21 | 青岛欧特美交通装备有限公司 | A kind of cab apron device with Quick locking function |
| CN108891433A (en) * | 2018-08-06 | 2018-11-27 | 青岛欧特美交通装备有限公司 | A kind of novel cab apron device of run-through channel |
| CN211335980U (en) * | 2019-10-31 | 2020-08-25 | 比亚迪股份有限公司 | Rail vehicle |
| CN112622953A (en) * | 2020-12-31 | 2021-04-09 | 欧特美交通科技股份有限公司 | Through-passage cab apron device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113942531B (en) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100959114B1 (en) | Hight control device for bicycle saddle or steering handle | |
| CN213413570U (en) | Base convenient to with car children safety seat dismouting and car children safety seat | |
| CN109572731B (en) | Rail transit through passage structure | |
| CN213035694U (en) | Misuse prevention type automobile child safety seat base and automobile child safety seat | |
| CN113942531B (en) | Cab apron device for through passage | |
| CN108909358A (en) | A kind of gauge-changeable wheelsets and gauge-changeable bogie | |
| CN111845816B (en) | Connecting and disconnecting mechanism, through passage, train and rail transit system | |
| CN113494222A (en) | Opening and closing mechanism and train with same | |
| KR100537950B1 (en) | Wiper assembly | |
| CN109421752B (en) | Straddle type monorail train and maintenance method thereof | |
| CN217870317U (en) | Gate locking device | |
| CN212154489U (en) | Opening and closing mechanism and train with same | |
| CN109421750B (en) | Straddle type monorail train and maintenance method thereof | |
| CN213869383U (en) | Door locking device for a vehicle door of a rail vehicle, rail vehicle door and rail vehicle | |
| CN212438042U (en) | Children sleeping basket | |
| CN216037990U (en) | Elevator control box and elevator | |
| CN219215013U (en) | Inter-city motor train unit platform seat cushion quick locking mechanism | |
| US20240083311A1 (en) | Baby carrier | |
| CN112875452A (en) | Elevator control box and elevator | |
| CN216232608U (en) | Safety protection device for cargo box breast board door fastener | |
| CN217623926U (en) | Folder for foldable frame and electric vehicle | |
| CN216742339U (en) | Quick dismounting structure for drawer door plate | |
| CN215037426U (en) | Hoisting track robot and fast-assembling fast-separating type bearing wheel mechanism thereof | |
| CN218505538U (en) | Embedded printer flat scanning platform | |
| CN218991227U (en) | Emergency unlocking device and sliding plug door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266111 South Side of Xinye Road and West Side of Herong Road, Qingdao Hi-tech Industrial Development Zone, Shandong Province Applicant after: CRRC Brake System Co.,Ltd. Address before: 266111 Qingdao High-tech Industrial Development Zone, Qingdao, Shandong Province, on the south side of Xinye Road and on the west side of Herong Road Applicant before: QINGDAO SRI TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |