Sliding embedded door for railway refrigerator car

Abstract

The application discloses a sliding embedded car door and railway refrigerator car and belongs to the technical field of railway vehicles. The sliding embedded car door comprises a door body which is installed on a car body. The sliding embedded car door further comprises a first sliding rail which is arranged on the car body, a sliding groove is formed in the first sliding rail, and a limiting flange is protruded on the groove wall of the sliding groove. A sliding support assembly comprises a roller which is rotatably connected to the door body through a rotating shaft and is movably arranged in the sliding groove so as to stop the roller from separating from the sliding groove through the groove wall and the limiting flange. The sliding embedded car door and the railway refrigerator car can effectively solve the technical problem that the sliding embedded car door of the railway vehicle is prone to dislocation, separation from a door frame and even overall falling off.

Description

Technical Field

[0001] This application belongs to the field of railway vehicle technology, and in particular relates to a sliding embedded door and a railway insulated car. Background Technology

[0002] The freight compartment door of the railway insulated car is a sliding embedded door. The door can slide on a slide rail arranged along the length of the car body. When the door slides to be aligned with the door frame set on the car body, the door can be pushed into the door frame in a direction perpendicular to the slide rail to close the door. Correspondingly, a locking mechanism is provided between the door and the door frame to press the door tightly into the door frame.

[0003] However, during vehicle door use, the sliding opening mechanism increases the risk of the door becoming misaligned, detaching from the frame, or even falling off entirely. This affects the reliability of the door's locking and sealing, and also poses a safety risk of colliding with cargo or personnel. Summary of the Invention

[0004] This application provides a sliding embedded door and a railway insulated car, aiming to at least partially solve the technical problems of sliding embedded doors on railway vehicles being prone to misalignment, detachment from the door frame, or even complete fall-off. Therefore,

[0005] This application provides a sliding embedded vehicle door, including a door body, which is mounted on a vehicle body; the sliding embedded vehicle door further includes:

[0006] A first slide rail is provided on the vehicle body. A sliding groove is provided on the first slide rail, and a limiting flange is provided on the groove wall of the sliding groove.

[0007] A sliding support assembly includes a roller rotatably connected to the door body via a pivot, and the roller is movably disposed within the sliding groove so as to prevent the roller from disengaging from the sliding groove by the groove wall and the limiting flange.

[0008] In some embodiments, the sliding support assembly further includes:

[0009] A door pivot rod is rotatably mounted on the door body about its axis;

[0010] The first crank has a first end connected to the door pivot rod and a second end connected to the rotating shaft;

[0011] A stop member is connected to the rotating shaft, and the stop member is disposed in the sliding groove to prevent the rotating shaft and the roller from disengaging from the sliding groove;

[0012] A handle is attached to the door pivot rod to drive the door pivot rod to rotate by operating the handle, thereby pushing or pulling the door body into or out of the door frame on the vehicle body.

[0013] In some embodiments, the sliding support assembly further includes:

[0014] The second crank has its first end connected to the door pivot rod;

[0015] A support roller assembly is movably connected to the second end of the second crank, and the support roller assembly is movably mounted on the second slide rail on the vehicle body to roll and support the door body;

[0016] A door limiting mechanism is connected between the support roller assembly and the second slide rail to limit the door to a preset position on the second slide rail when the door is open.

[0017] In some embodiments, the door limiting mechanism includes:

[0018] A limit support is provided on the second slide rail;

[0019] A limiting locking rod is rotatably connected to the limiting support, and one end of the limiting locking rod is provided with a hook.

[0020] An elastic reset element is connected between the limiting lock rod and the second slide rail;

[0021] A hook seat is connected to the support roller assembly to move with the support roller assembly and push the limiting locking rod to deflect the hook body into the hook seat, and maintain the hook body in the hook seat state under the push of the elastic reset member.

[0022] In some embodiments, the resilient reset member includes:

[0023] A support link is slidably mounted on the second slide rail, and the first end of the support link is pivotally connected to the limiting lock rod;

[0024] A return spring is sleeved on the support link, and the two ends of the return spring abut against the second slide rail and the second end of the support link, respectively, so as to apply an elastic return force to the limiting lock rod through the support link.

[0025] In some embodiments, a push-receiving ramp is provided on the side of the hook body near the hook seat, so that when the push-receiving ramp contacts the hook seat, the limiting locking rod deflects under the guidance of the push-receiving ramp and guides the hook body to be aligned and hooked into the hook seat.

[0026] In some embodiments, the hook seat has a pushing slope that matches the pushing slope.

[0027] In some embodiments, the hook base is a ring-shaped element.

[0028] In some embodiments, the sliding embedded door further includes:

[0029] An anti-detachment mechanism is connected between the vehicle body and the door to prevent the door from detaching from the door frame.

[0030] In some embodiments, the anti-detachment mechanism includes:

[0031] A stop seat is provided on the vehicle body;

[0032] An anti-disengagement latch is rotatably mounted on the door body so that when the door body is embedded in the door frame, the anti-disengagement latch can be rotatably embedded in the stop seat to prevent the door body from detaching from the door frame.

[0033] In some embodiments, the anti-detachment mechanism further includes:

[0034] A storage seat is provided on the vehicle body to restrict the anti-loosening latch from disengaging when the anti-loosening latch deflects and embeds itself in the storage seat.

[0035] In some embodiments, the sliding embedded door further includes:

[0036] A buffer mechanism is installed on the vehicle body and located on the movement trajectory of the door to buffer the impact of the door and limit the movement of the door.

[0037] In some embodiments, the first slide rail is provided with a limit stop, and the limit stop is respectively provided at both ends of the travel of the roller.

[0038] In some embodiments, the first slide rail includes:

[0039] The first guide rail is mounted on the vehicle body;

[0040] The second guide rail is disposed opposite to the first guide rail and connected to the vehicle body, and the second guide rail, the vehicle body and the second guide rail form the sliding groove, wherein the limiting flange is provided on the opposite sidewalls of the first guide rail and the second guide rail.

[0041] Another aspect of this application embodiment provides a railway refrigerated car, including the aforementioned sliding embedded door.

[0042] The embodiments of this application have at least the following beneficial effects:

[0043] The sliding embedded door and railway insulated car provided in this application embodiment guide the door body to move by setting a first slide rail, and a sliding groove is opened in the first slide rail to accommodate and constrain the movement of the rollers on the door body, thus limiting the door body from derailing; at the same time, a limiting flange is provided on the groove wall of the sliding groove to limit the rollers from leaving the sliding groove, further reducing the risk of the door body derailing; thus, the door body is stably connected to the first slide rail as a whole, reducing the risk of door displacement and derailment, and avoiding accidents such as the door body detaching from the door frame or falling off as a whole. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 A schematic diagram of the sliding embedded door in an embodiment of this application is shown;

[0046] Figure 2 It shows Figure 1 A structural schematic diagram of the sliding embedded door from another perspective;

[0047] Figure 3 It shows Figure 1 A schematic diagram of the structure of the first slide rail of the sliding embedded door in the vehicle;

[0048] Figure 4 It shows Figure 1 A schematic diagram of the cooperation between the first slide rail and the roller in the sliding embedded door;

[0049] Figure 5 for Figure 4 The left view;

[0050] Figure 6 for Figure 4 A bottom view;

[0051] Figure 7 It shows Figure 1 A schematic diagram of another structure of the first slide rail of the sliding embedded door in the vehicle;

[0052] Figure 8 for Figure 7 The left view;

[0053] Figure 9 It shows Figure 1 A schematic diagram of the anti-detachment mechanism of the sliding embedded door in the vehicle.

[0054] Figure 10It shows Figure 1 Another perspective structural diagram of the anti-detachment mechanism of the sliding embedded door in the vehicle;

[0055] Figure 11 It shows Figure 1 A schematic diagram of the door limiting mechanism of the sliding embedded door in the vehicle.

[0056] Figure 12 It shows Figure 1 Another perspective structural diagram of the door limiting mechanism of the sliding embedded door in the vehicle;

[0057] Figure 13 It shows Figure 1 A schematic diagram of the buffer mechanism of the sliding embedded door in the vehicle.

[0058] Figure 14 It shows Figure 1 A schematic diagram of the stop mechanism of the sliding embedded door in the vehicle.

[0059] Figure 15 It shows Figure 1 A schematic diagram of the first state structure of the stop component of the sliding embedded door in the vehicle;

[0060] Figure 16 It shows Figure 1 A schematic diagram of the second state structure of the stop component of the sliding embedded door in the vehicle.

[0061] Figure label:

[0062] 10-Vehicle body, 11-Door body, 12-Door frame;

[0063] 100-First slide rail, 110 sliding groove, 111-limiting flange, 120-first guide rail, 130-second guide rail, 140-guide rail support, 150-limiting stop;

[0064] 200-Sliding support assembly, 210-Roller, 211-Rotating shaft, 220-First crank, 230-Door pivot rod, 240-Handle, 241-Mounting seat, 242-Locking seat, 250-Second crank, 260-Support roller assembly, 270-Door limiting mechanism, 271-Limiting support, 272-Limiting lock rod, 272a-Hook body, 272b-Pushing inclined surface, 273-Elastic reset component, 273a-Supporting connecting rod, 273b-Reset spring, 274-Hook seat, 274a-Pushing inclined surface, 280-Stop component, 280a-First stop part, 280b-Second stop part;

[0065] 300 - Second slide rail;

[0066] 400-Anti-detachment mechanism, 410-Stop seat, 411-Stop mounting seat, 420-Anti-detachment locking tongue, 421-Lock tongue mounting seat, 430-Storage seat;

[0067] 510-Buffer mechanism, 511-Buffer mounting base, 512-Buffer plate, 513- Liner plate, 520-Stop mechanism, 521-Stop mounting base, 522-Support rib plate, 523-Rubber stop block. Detailed Implementation

[0068] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0069] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0070] This application is described below with reference to the accompanying drawings and specific embodiments:

[0071] Railway vehicles, such as refrigerated cars, are often equipped with sliding embedded doors. The car body has a door frame, and the door can be programmed to move into or out of the frame to open and close. This sliding embedded door structure gives the door a high degree of freedom and movement, but it also carries a risk of derailment during the opening, closing, or operation of the door. This can lead to a high risk of the door derailing or even the entire door detaching from the car body.

[0072] Therefore, this application provides a sliding embedded door and a railway insulated car, which aims to solve the problem of high derailment risk of sliding embedded doors to a certain extent, maintain the stability of the door's movement and locking state, and reduce the risk of accidents such as derailment or even falling off.

[0073] Figure 1 A schematic diagram of the sliding embedded door in an embodiment of this application is shown; Figure 2 It shows Figure 1 A structural schematic diagram of the sliding embedded door from another perspective; Figure 3 It shows Figure 1 A schematic diagram of the structure of the first slide rail of the sliding embedded door in the vehicle;

[0074] Figure 4 It shows Figure 1 A schematic diagram of the cooperation between the first slide rail and the roller in the sliding embedded door; Figure 5 for Figure 4 The left view; Figure 6 for Figure 4 A bottom view.

[0075] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In some embodiments, the sliding embedded door includes a door body 11, mounted on the vehicle body 10, and movable along a set trajectory to open and close the door. To enable the sliding of the door body 11, the sliding embedded door may further include a first slide rail 100 and a sliding support assembly 200. The first slide rail 100 is disposed on the vehicle body 10, serving as a guide and limiting structure for the movement of the door body 11. A sliding groove 110 is formed on the first slide rail 100, and the extending direction of the sliding groove 110 is consistent with the guiding direction of the first slide rail 100. The sliding support assembly 200 includes a roller 210, which is rotatably connected to the door body 11 via a pivot 211. The roller 210 is movably disposed within the sliding groove 110, thereby constraining and guiding the movement direction of the roller 210 through the groove wall of the sliding groove 110, maintaining a stable rolling direction and posture to ensure the stability of the door body 11's movement and posture, and reducing the risk of derailment.

[0076] Meanwhile, in order to further reduce the risk of the door 11 derailing, a limiting flange 111 can be provided on the groove wall of the sliding groove 110, and the limiting flange 111 is arranged along the guiding direction of the sliding groove 110 to stop the roller 210 from moving in the direction of disengaging from the groove of the sliding groove 110, thereby preventing the roller 210 from disengaging from the sliding groove 110, which can also reduce the risk of the door 11 derailing to a certain extent.

[0077] The sliding embedded car door provided in this application embodiment, by setting a first slide rail on the car body, and setting a sliding groove and a limiting flange on the first slide rail to accommodate rollers set on the door body, maintains the moving posture of the door body by constraining and guiding the movement of the rollers, thereby reducing the risk of derailment; and by preventing the rollers from disengaging from the sliding groove through the limiting flange, the risk of the door body derailing is further reduced; thus, the overall risk of the door body derailing or disengaging from the car body is reduced by maintaining and limiting the movement of the rollers.

[0078] In some embodiments, the first slide rail 100 may be integrally formed using a one-piece molding process and fixed to the vehicle body 10 by a guide rail support 140.

[0079] Figure 7 It shows Figure 1 A schematic diagram of another structure of the first slide rail of the sliding embedded door in the vehicle; Figure 8 for Figure 7 Left view; see also Figure 7 and Figure 8 In some embodiments, the first slide rail 100 may adopt a split structure. The first slide rail 100 may include a first guide rail 120 and a second guide rail 130, both of which are fixed to the vehicle body 10. The first guide rail 120, the vehicle body 10 and the second guide rail 130 form the main structure of the first slide rail 100, which surrounds the sliding groove 110. The limiting flanges 111 are respectively provided on the opposite sidewalls of the first guide rail 120 and the second guide rail 130.

[0080] The use of split-type slide rail components can reduce the molding difficulty to a certain extent and facilitate the improvement of production efficiency.

[0081] In some embodiments, the groove depth direction of the sliding groove 110 can be set to be perpendicular to the guiding direction of the sliding groove 110, that is, the direction in which the roller 210 disengages from the sliding groove 110 is perpendicular to the guiding direction of the sliding groove 110; thereby, the guiding sliding of the roller 210 and the process of disengaging from the sliding groove 110 can be separated, reducing the risk of the roller 210 disengaging from the sliding groove 110 during the rolling process.

[0082] In some embodiments, the limiting flanges 111 may be in two sets, disposed opposite to each other on two opposite groove walls of the limiting groove 110, and the gap between the two limiting flanges 111 is smaller than the diameter of the roller 210, thereby reducing the likelihood of the roller 210 disengaging.

[0083] See Figure 1 and Figure 2 In some embodiments, space may be provided on the vehicle body 10 to accommodate the door body 11, and a door frame 12 may also be provided on the vehicle body to cooperate with the vehicle body 11 to seal and lock the vehicle body 10. Correspondingly, the first slide rail 100 may be correspondingly arranged in the upper region of the door frame 12 to accommodate the roller 210 and avoid interfering with the sliding of the door body 11.

[0084] In some embodiments, in order to meet the sealing performance requirements of special vehicles such as railway insulated cars and improve the sealing performance of the door frame 12 area, the door body 11 can be embedded into the door frame 12, and the sealing gaskets and other sealing elements provided in the door frame 12 can be pressed to seal the gap between the door body 11 and the door frame 12.

[0085] Accordingly, in order to accommodate the sliding of the door body 11 and its insertion and disengagement from the door frame 12, the sliding support assembly 200 may further include a first crank 220 and a door pivot 230. The door pivot 230 is rotatably connected to the door body 11, and the first end of the first crank 220 is connected to the door pivot 230, while the second end of the first crank 220 is connected to the pivot shaft 211; that is, the pivot shaft 211 is not directly connected to the door body 11, but is indirectly connected to the door body 11 through the first crank 220 and the door pivot 230 in sequence.

[0086] When the door body 11 slides along the first slide rail 100 to the alignment state with the door frame 12, the door pivot rod 230 can be operated to drive the door pivot rod 230 to rotate, thereby causing the first crank 220 to deflect relative to the first slide rail 100. This allows the door body 11 to be pushed towards the door frame 12 or pulled out of the door frame 12, thus enabling the door body 11 to be inserted into or removed from the door frame 12, thereby realizing the opening and closing operation of the door.

[0087] See Figure 1 In some embodiments, to facilitate operation of the door pivot 230, the sliding support assembly 200 may further include a handle 240, which may be mounted on the door pivot 230, and the door pivot 230 may be rotated relative to the door body 11 by pushing or pulling the handle 240.

[0088] In some embodiments, in order to maintain the rotation range of the door pivot 230, maintain the embedded position of the door body 11, and reduce the impact of interference factors on the closed sealing state of the door body 11, a locking seat 242 can be provided on the door body 11. When the door body 11 is embedded in the door frame 12 and the handle 240 follows the door pivot 230 to deflect to a preset locking position, the locking seat 242 locks the handle 240, thereby restricting the rotation of the door pivot 230 and locking the door body 11.

[0089] In some embodiments, to facilitate the locking operation of the handle 240, the handle 240 can be fixed to the door pivot 230 via a mounting base 241. The handle 240 can deflect relative to the mounting base 241 to engage or disengage from the locking seat 242. Simultaneously, the deflection direction of the handle 240 is perpendicular to the direction in which the handle 240 drives the door pivot 230 to rotate, thus accommodating both the actuation operation of the handle 240 on the door pivot 230 and the locking operation of the handle 240.

[0090] Generally, the direction in which the handle 240 moves the door pivot 230 is in the horizontal plane and perpendicular to the length direction of the door pivot 230; the direction in which the handle 240 deflects relative to the mounting base 242 is in the vertical direction in the vertical plane.

[0091] See Figure 4 , Figure 5 and Figure 6 In some embodiments, considering that the roller 210 is a moving part, when subjected to a sudden external force, such as during vehicle maintenance and hoisting, if the force is too strong, the roller 210 is easily deformed or even structurally damaged, thereby breaking through the sliding groove 110 of the first slide rail 100 and the limiting flange 111, detaching from the first slide rail 100, causing the door 11 to derail, or even fall off the vehicle body 10 as a whole.

[0092] Therefore, the sliding support assembly 200 may further include a stop 280, which can be disposed in the sliding groove 110 and connected to the rotating shaft 211. Through specification design, the size of the stop 280 is larger than the groove opening size of the sliding groove 110 and the gap size between the limiting flanges 111. Thus, through the rigid limiting effect of the stop 280, the door body 11 is stably connected to the first slide rail 100 through the door pivot rod 230, the first crank 220, the rotating shaft 211 and the stop 280, forming a reliable safety measure to prevent the door body 11 from detaching from the vehicle body 10.

[0093] Figure 15 It shows Figure 1 A schematic diagram of the first state structure of the stop component of the sliding embedded door in the vehicle; Figure 16 It shows Figure 1 A schematic diagram of the second state structure of the stop component of the sliding embedded door in the vehicle.

[0094] See Figure 4 , Figure 5 , Figure 6 , Figure 15 and Figure 16In some embodiments, considering the small clearance between the limiting groove 110 and the roller 210, to reduce the risk of the stop 280 abutting against the groove wall of the limiting groove 110 and interfering with the rolling posture of the roller 210, the stop 280 can be configured as a fan shape. Through matching the installation position, the fan-shaped stop 280 can abut against one of the two limiting flanges 111 in the direction of disengaging from the opening of the sliding groove 110, thereby maintaining stable and reliable anti-disengagement and reducing the risk of abutting against the first slide rail 100.

[0095] In some embodiments, along the depth direction of the sliding groove 110, i.e. the direction of disengagement from the sliding groove 110, a portion of the arcuate side of the fan-shaped stop 280, i.e. the first stop portion 280a, can be disposed opposite to one of the two limiting flanges 111, thereby restricting the rotating shaft 211 from disengaging from the sliding groove 110 by means of the first stop portion 280a.

[0096] During the process of the door body 11 being inserted into or detached from the door frame 12, the stop member 280 rotates with the rotating shaft 211, causing the first stop part 280a to move away from the position opposite to the limiting flange 111, while another part of the arc-shaped side of the fan-shaped stop member 280, namely the second stop part 280b, replaces the first stop part 280a and faces the limiting flange 111, restricting the rotating shaft 211 from disengaging from the sliding groove 110 and maintaining the stability of the stopping function.

[0097] See Figure 5 and Figure 6 In some embodiments, in order to restrict the roller 210 from moving away from the sliding groove 110 along the first slide rail 100, a stop member 150 may be provided in the sliding groove 110, and may be specifically provided at the end of the set travel trajectory of the roller 210 to stop the roller 210.

[0098] See Figure 1 and Figure 2 In some embodiments, to improve the sliding stability of the door 11, a second slide rail 300 can be provided on the vehicle body 10, and the sliding support assembly may further include a second crank 250 and a support roller assembly 260. The first end of the second crank 250 is connected to the door pivot 220, and the second end is connected to the support roller assembly 260. The support roller assembly 260 is slidably mounted on the second slide rail 300, thereby enabling the support roller assembly 260 to primarily bear the weight of the door 11, forming a second stable sliding support structure below the door 11, further enhancing the sliding posture and positional stability of the door 11.

[0099] Figure 11 It shows Figure 1 A schematic diagram of the door limiting mechanism of the sliding embedded door in the vehicle. Figure 12 It shows Figure 1 Another perspective structural diagram of the door limiting mechanism of the sliding embedded door in the vehicle.

[0100] See Figure 1 , Figure 2 , Figure 11 and Figure 12 In some embodiments, because the door 11 can slide flexibly under the support of the rollers 210 and the support roller assembly 260, it is highly susceptible to free sliding under external interference when the door is open, posing a safety risk, or even the risk of derailment and detachment. Therefore, the sliding support assembly 200 may further include a door limiting mechanism 270, which is connected between the second slide rail 300 and the support roller assembly 260. This mechanism can lock the support roller assembly 260 onto the second slide rail 300, restricting its movement on the second slide rail 300, thereby locking the door 11 and preventing it from sliding freely and causing collisions, derailment, or even detachment.

[0101] In some embodiments, the locking position of the door limiting mechanism 270 on the door body 11 can be set to the storage position when the door body 11 is fully open, thereby avoiding mutual interference between goods and personnel entering and exiting through the door frame 12 and ensuring the safety of goods, personnel and door body.

[0102] In some embodiments, the door limiting mechanism 270 may include a limiting support 271, a limiting locking rod 272, and a hook seat 274. The limiting support 271 may be installed on the second slide rail 300, the hook seat 274 may be installed on the support roller assembly 260, the limiting locking rod 272 may be rotatably connected to the limiting support 271, and the limiting locking rod 272 is provided with a hook 272a. Thus, when the hook seat 274 moves with the support roller assembly 260 to the storage position of the door 11, the hook 272a may be hooked onto the hook seat 274 by deflecting the limiting locking rod 272, thereby restricting the free sliding of the support roller assembly 260 and the door 11.

[0103] The hook 272a can be positioned toward the hook seat 274. During the opening of the door 11, it slides along the second slide rail 300 and gradually approaches the limiting lock bar 272. After the door 11 is moved into place, the hook 272a and the hook seat 274 are in a matching locking position. By operating the limiting lock bar 272, the hook 272a can be stably locked to the hook seat 274.

[0104] In some embodiments, to improve the ease of locking the door limiting mechanism 270, the door limiting mechanism 270 may further include an elastic reset member 273. The elastic reset member 273 can be connected between the second slide rail 300 and the limiting lock rod 272, applying an elastic force between the limiting lock rod 272 and the second slide rail 300, so that the limiting lock rod 272 can be held in a preset locking position; thus, when the hook 272a is hooked on the hook seat 274, the elastic force applied by the elastic reset member 273 can keep the limiting lock rod 272 in a locked state, reducing the risk of disengagement and unlocking. During unlocking, the operator can operate the limiting lock rod 272 to deflect, causing the hook 272a to disengage from the hook seat 274.

[0105] When the hook 272a is not hooked onto the hook seat 274, i.e., not in a locked state, the limiting locking rod 272 is also kept in the locked position under the elastic force of the elastic reset member 273. When locking is required, the limiting locking rod 272 can be operated to deflect and lift the hook 272a. After the hook seat 274 is in place, the limiting locking rod 272 is released. Under the traction of the elastic force of the elastic reset member 273, the locking rod 272 automatically resets and stably keeps the hook 272a hooked onto the hook seat 274.

[0106] See Figure 11 and Figure 12In some embodiments, to further improve the efficiency and convenience of locking the door 11, a push-receiving slope 272b can be provided on the side of the hook 272a near the hook seat 274. When the hook seat 274 approaches and touches the hook 274, a pushing force can be formed on the push-receiving slope 272b to deflect the limiting locking rod 272, causing the limiting locking rod 272 to deflect and lift the hook 272a. When the hook seat 274 moves further to the preset locking position, the hook seat 274 will no longer push the push-receiving slope 272b, and the hook 272a will also be at a certain height. The hook 272a can automatically reset under the traction of the elastic force of the elastic reset member 273, and the hook 272a will be stably held in the state of being hooked on the hook seat 274. In other words, a collision-locking locking mode is formed between the hook body 272a and the hook seat 274, eliminating the need for manual operation of the limit locking rod 272, thus further improving the efficiency and convenience of locking.

[0107] In some embodiments, a pushing slope 274a that cooperates with the pushing slope 272b can also be formed on the hook seat 274. When the hook seat 274 contacts the hook body 272a, the surface contact between the pushing slope 272b and the pushing slope 274a reduces the intensity of the impact on the hook body 272a, achieving smooth locking. This avoids the situation where the hook body 272a cannot be accurately locked onto the hook seat 274 due to excessive deflection of the limiting locking rod 272, thereby improving the reliability of locking.

[0108] In some embodiments, the hook seat 274 may be configured as a ring-shaped member, with the hook body 272a accommodated in the hollow area of ​​the ring-shaped member, thereby achieving a simple locking function structure.

[0109] In some embodiments, the elastic reset member 273 may include a support link 273a and a reset spring 273b. The support link 273a is slidably connected to the second slide rail 300. The first end of the support link 273a is movably connected to the limiting lock rod 272. The reset spring 273b is sleeved on the support link 273a, and the two ends of the reset spring 273b are respectively connected between the second slide rail 300 and the second end of the support link 273a, thereby constraining the deformation direction of the reset spring 273b through the support link 273a to form a stable elastic reset force.

[0110] In some embodiments, the support link 273a may be pivotally connected to the limiting lock rod 272a to ensure a stable connection and reduce the risk of interference between the deflection motion of the limiting lock rod 272a and the linear motion of the support link 273a.

[0111] In some embodiments, the support link 273a can reciprocate along a set straight trajectory. For this purpose, a guide hole, guide groove, guide bracket and other structures can be provided on the second slide rail 300 to constrain and guide the movement of the support link 273a.

[0112] Figure 9 It shows Figure 1 A schematic diagram of the anti-detachment mechanism of the sliding embedded door in the vehicle. Figure 10 It shows Figure 1 Another perspective structural diagram of the anti-detachment mechanism of the sliding embedded door in the vehicle.

[0113] See Figure 1 , Figure 2 , Figure 9 and Figure 10 In some embodiments, considering the risk of malfunction of the locking structure for the door body 11, in order to deal with the situation where the door body 11 is embedded in the door frame 12 and falls out, the sliding embedded door may also include an anti-detachment mechanism 400 connected between the door body 11 and the vehicle body 10 as a safety anti-detachment measure to reduce the risk of the door body 11 falling out.

[0114] In some embodiments, the anti-detachment mechanism 400 may include a stop seat 410 and an anti-detachment latch 420. The stop seat 410 is disposed on the vehicle body 10, and the anti-detachment latch 420 is rotatably disposed on the door body 11 so that when the door body 11 is embedded in the door frame 12, the anti-detachment latch 420 can be rotatably embedded in the stop seat 410 to form an anti-detachment functional structure in the form of a door bolt, connecting the door body 11 to the vehicle body 10 and restricting the door body 11 from detaching from the door frame 12.

[0115] In some embodiments, to prevent the anti-loosening latch 420 from swinging freely and interfering with the movement of the door body 11 and the operation of embedding into the door frame 12, a storage seat 430 can be provided on the vehicle body 10 so that the anti-loosening latch 420 can be stably stored and locked when the anti-loosening latch 420 is in a non-working state, thereby reducing the risk of interference to the surrounding structure.

[0116] In some embodiments, to facilitate the installation of the stop seat 410, the stop seat 410 can be mounted on the stop mounting seat 411 and directly installed onto the door body 11 via the stop mounting seat 411. Alternatively, the anti-loosening latch 420 can be rotatably mounted on the latch mounting seat 421, and the latch mounting seat 421 can be installed onto the vehicle body 10.

[0117] In some embodiments, the stop seat 410 and the anti-loosening latch 420 can be installed on the vehicle body 10 and the door body 11, respectively.

[0118] In some embodiments, the anti-disengagement tongue 420 may be configured in a curved shape, thereby forming more contact areas with the stop seat 410, increasing contact friction, and reducing the risk of the anti-disengagement tongue 420 popping out of the stop seat 410 due to factors such as vibration and shaking.

[0119] Figure 13 It shows Figure 1 A schematic diagram of the buffer mechanism of the sliding embedded door in the vehicle. Figure 14 It shows Figure 1 A schematic diagram of the stop mechanism of the sliding embedded door in the vehicle.

[0120] See Figure 1 , Figure 2 , Figure 13 and Figure 14 In some embodiments, since the door body 11 has a certain weight, the impact force is large during movement. In order to prevent the door body 11 from sliding out of the range of the first slide rail 100 and the second slide rail 300, causing derailment and damage to the surrounding structure, a buffer mechanism 510 can be provided on the vehicle body 10 and the buffer mechanism 510 is set at the end of the preset movement stroke of the door body 11 to achieve buffering and limiting.

[0121] In some embodiments, the buffer mechanism 510 may include a buffer mounting base 511, a buffer plate 512, and a liner 513; the buffer mounting base 511 may be mounted on the vehicle body 10, the buffer plate 512 is disposed on the buffer mounting base 511, and the plate surface of the buffer plate 512 faces the side of the door body 11, so as to directly contact and buffer the impact of the door body 11; the liner 513 is connected to the buffer mounting base 511 and the buffer plate 512 respectively, stably supporting the buffer plate 512 and giving it a certain impact resistance.

[0122] In some embodiments, the buffer plate 512 may be configured as multiple layers, and the liner 513 may also be configured as multiple pieces, which can improve the impact resistance to a certain extent.

[0123] In some instances, a stop mechanism 520 may also be provided on the door body 11 to cooperate with the buffer mechanism 510. When the door body 11 moves to a set position, the stop mechanism 520 may abut against the buffer mechanism 510 to prevent the door body 11 from directly impacting the buffer mechanism 510 and affecting the shape and structure of the door body 11.

[0124] In some embodiments, the stopping mechanism 520 may include a stopping mounting base 521, a support rib plate 522, and a rubber stop block 523; the support rib plate 522 is fixed on the stopping mounting base 521, the rubber stop block 523 is fixed on the support rib plate 522, and the stopping mounting base 521 is installed on the door body 11.

[0125] In some embodiments, a railway refrigerated car is also provided, including the aforementioned sliding embedded door.

[0126] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0127] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0128] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0129] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0130] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0131] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0132] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0133] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A sliding embedded vehicle door, comprising a door body, the door body being mounted on a vehicle body; characterized in that, The sliding embedded door also includes: A first slide rail is provided on the vehicle body. A sliding groove is provided on the first slide rail, and a limiting flange is provided on the groove wall of the sliding groove. A sliding support assembly includes a roller, which is rotatably connected to the door body via a pivot and is movably disposed within the sliding groove so as to prevent the roller from disengaging from the sliding groove by the groove wall and the limiting flange. The sliding support assembly further includes: A door pivot rod is rotatably mounted on the door body about its axis; The first crank has a first end connected to the door pivot rod and a second end connected to the rotating shaft; A stop member is connected to the rotating shaft and is disposed in the sliding groove. The size of the stop member is larger than the groove opening size of the sliding groove and the gap size between the limiting flange, so as to prevent the rotating shaft and the roller from disengaging from the sliding groove. A handle is attached to the door pivot rod so that by operating the handle, the door pivot rod can be rotated, thereby pushing or pulling the door body to engage with or disengage from the door frame on the vehicle body; The first slide rail includes: The first guide rail is mounted on the vehicle body; The second guide rail is disposed opposite to the first guide rail and connected to the vehicle body, and the second guide rail, the vehicle body and the second guide rail form the sliding groove, wherein the limiting flange is provided on the opposite sidewalls of the first guide rail and the second guide rail; The stop member is fan-shaped, including a first stop part and a second stop part; During the process of the door body being inserted into or removed from the door frame, the stop member rotates synchronously with the rotating shaft, so that the first stop part and the second stop part are alternately arranged opposite to the limiting flange, continuously preventing the rotating shaft from disengaging from the sliding groove.

2. The sliding embedded door as described in claim 1, characterized in that, The sliding support assembly further includes: The second crank has its first end connected to the door pivot rod; A support roller assembly is movably connected to the second end of the second crank, and the support roller assembly is movably mounted on the second slide rail on the vehicle body to roll and support the door body; A door limiting mechanism is connected between the support roller assembly and the second slide rail to limit the door to a preset position on the second slide rail when the door is open.

3. The sliding embedded door as described in claim 2, characterized in that, The door limiting mechanism includes: A limit support is provided on the second slide rail; A limiting locking rod is rotatably connected to the limiting support, and one end of the limiting locking rod is provided with a hook. An elastic reset element is connected between the limiting lock rod and the second slide rail; A hook seat is connected to the support roller assembly to move with the support roller assembly and push the limiting locking rod to deflect the hook body into the hook seat, and maintain the hook body in the hook seat state under the push of the elastic reset member.

4. The sliding embedded door as described in claim 3, characterized in that, The elastic reset element includes: A support link is slidably mounted on the second slide rail, and the first end of the support link is pivotally connected to the limiting lock rod; A return spring is sleeved on the support link, and the two ends of the return spring abut against the second slide rail and the second end of the support link, respectively, so as to apply an elastic return force to the limiting lock rod through the support link.

5. The sliding embedded door as described in claim 3, characterized in that, A push-receiving slope is provided on the side of the hook body near the hook seat, so that when the push-receiving slope contacts the hook seat, the limiting locking rod deflects under the guidance of the push-receiving slope and guides the hook body to be aligned and hooked into the hook seat.

6. The sliding embedded door as described in claim 5, characterized in that, The hook seat has a pushing slope that matches the pushing slope.

7. The sliding embedded door as described in claim 3, characterized in that, The hook base is a ring-shaped component.

8. The sliding embedded door as described in claim 1, characterized in that, The sliding embedded door also includes: An anti-detachment mechanism is connected between the vehicle body and the door to prevent the door from detaching from the door frame.

9. The sliding embedded door as described in claim 8, characterized in that, The anti-loosening mechanism includes: A stop seat is provided on the vehicle body; An anti-disengagement latch is rotatably mounted on the door body so that when the door body is embedded in the door frame, the anti-disengagement latch can be rotatably embedded in the stop seat to prevent the door body from detaching from the door frame.

10. The sliding embedded door as described in claim 9, characterized in that, The anti-detachment mechanism also includes: A storage seat is provided on the vehicle body to restrict the anti-loosening latch from disengaging when the anti-loosening latch deflects and embeds itself in the storage seat.

11. The sliding embedded door as described in claim 1, characterized in that, The sliding embedded door also includes: A buffer mechanism is installed on the vehicle body and located on the movement trajectory of the door to buffer the impact of the door and limit the movement of the door.

12. The sliding embedded door as described in claim 1, characterized in that, The first slide rail is provided with a limit stop, and the limit stop is respectively located at both ends of the travel of the roller.

13. A type of refrigerated railway car, characterized in that, Including the sliding embedded door as described in any one of claims 1 to 12.

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