CN220595917U - Rail blocking opening and closing structure of layer-changing lifting locomotive - Google Patents

Abstract

The utility model discloses a layer-changing lift truck rail blocking and opening and closing structure, which comprises a cargo carrying platform module, a goods shelf truck rail, a truck rail blocking module and an opening and closing module, wherein the cargo carrying platform truck rail is fixedly connected to two sides of a truck rail mounting plate, an electric actuator is arranged at the lower part of a rack, and the opening and closing module comprises a push plate bracket fixedly arranged at the upper part of the cargo carrying platform truck rail and a push plate arranged at one side of the push plate bracket; the upper part of the blocking bracket is rotatably provided with a turnover mechanism, and one side of the turnover mechanism is provided with a blocking block; one side of the turnover mechanism is connected with a push rod corresponding to the position of the push plate in a sliding way, and the push rod drives the turnover mechanism to turn over when sliding left and right on the turnover mechanism. When the cargo trolley rail is in butt joint with the goods shelf trolley rail, the push plate is used for pushing the push rod to drive the blocking block on one side of the turnover mechanism to rotate, so that the automatic opening and closing of the trolley rail blocking module is realized, the number of motors is reduced, and the use cost of the layer-changing elevator is reduced.

Description

Rail blocking opening and closing structure of layer-changing lifting locomotive

Technical Field

The utility model belongs to the field of intelligent storage, and particularly relates to a rail blocking opening and closing structure of a layer-changing lifting locomotive.

Background

With the development of logistics industry and intelligent storage technology, the use of conveying equipment and lifting equipment is increasing. The layer-changing elevator is applied to the multi-layer goods shelf system and used for realizing layer changing of the shuttle on the goods shelf. The elevator cargo carrying platform is provided with a trolley rail, when the cargo carrying platform reaches a certain layer of the goods shelf, the cargo carrying platform trolley rail is in butt joint with the goods shelf trolley rail, and at the moment, the shuttle can enter and exit along the goods shelf trolley rail. Before the shuttle enters the elevator load bed, the load bed needs to be ensured to be in place. When an anomaly occurs, the shuttle may still walk forward without the cargo bed in place, resulting in dropping of the shuttle and damage to equipment. Serious safety accidents can be caused when the safety is serious.

In the existing scheme, a blocking structure capable of being opened and closed is arranged at the tail end of a goods shelf rail to block a shuttle. When the cargo carrying platform does not reach the target goods shelf layer, the blocking block is positioned on the upper surface of the vehicle rail, and the shuttle vehicle cannot continue to walk after reaching the blocking position. When the cargo carrying platform reaches the target goods shelf layer, the motor on the cargo carrying platform can drive the deflector rod to lift the blocking block, and at the moment, the shuttle can smoothly enter the cargo carrying platform. The motor is adopted as the opening and closing power of the blocking module, and the motor is required to be arranged at the left side and the right side of the cargo carrying platform respectively, so that the equipment cost is increased, and the whole blocking module structure is complex.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a rail blocking and opening and closing structure of a layer-changing lifting locomotive, so as to solve the problems of complex structure and high use cost of the existing layer-changing lifting machine blocking and opening and closing structure.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a trade layer elevator locomotive rail blocks and opens and shuts structure, includes cargo bed module, goods shelves car rail, car rail block module and opens and shuts the module, cargo bed module includes the frame, and the frame lower part is equipped with guide structure, slidable mounting has the car rail mounting panel on the guide structure, the frame lower part is equipped with electric actuator, and electric actuator's end is connected with the car rail mounting panel, the both sides fixedly connected with cargo bed rail of car rail mounting panel; the tail end of the cargo carrying trolley rail is provided with an opening and closing module, the opening and closing module comprises a push plate bracket fixedly arranged at the upper part of the cargo carrying trolley rail, and a push plate is fixedly arranged at one side of the push plate bracket; the goods shelf trolley rail is fixedly arranged on a goods shelf and corresponds to the goods carrying trolley rail in position; the rail blocking module is fixedly arranged at one end of the goods shelf rail, the rail blocking module comprises a blocking support fixedly arranged at the upper part of the goods shelf rail, a turnover mechanism is rotatably arranged at the upper part of the blocking support, one side of the turnover mechanism is provided with a blocking block, and the rail blocking module is in a closed state under the working condition that the shuttle does not enter or exit the elevator, and the blocking block is positioned above the goods shelf rail; the turnover mechanism is connected with a push rod in a sliding manner, the push rod corresponds to the push plate in position, the distance between the push plate and the push rod is smaller than the stroke of the electric actuator, and the push rod drives the turnover mechanism to turn when sliding left and right on the turnover mechanism.

As one preferable of the technical scheme, the turnover mechanism comprises a blocking block support, the blocking block is arranged on one side of the blocking block support, a turnover cam is fixedly connected in the blocking block support, the turnover cam is of a hollow cylindrical tubular structure, a spiral groove is formed in the cylindrical surface of the turnover cam, the push rod comprises a first connecting section, a second connecting section and a third connecting section, planes are arranged on two sides of the first connecting section, the first connecting section is installed in the turnover cam in a clearance way, a threaded hole is formed in the first connecting section, a cam pin shaft is connected in the threaded hole in a threaded way, and the cam pin shaft is arranged in the spiral groove in a clearance way; the third connecting section is arranged outside the blocking support, a nut is connected to the tail end of the third connecting section in a threaded mode, a first spring is sleeved outside the second connecting section, one end of the first spring abuts against the blocking support, and the other end of the first spring abuts against the nut.

Further, the turning cam and the blocking block rotate around the axis of the push rod by an angle of 70-90 degrees.

Further, one side of the blocking block support is fixedly connected with a plurality of fixing blocks, an optical axis is connected in a sliding mode in the fixing blocks, and one end of the optical axis is connected with an elastic retainer ring; the blocking block is fixedly arranged at one end of the optical axis, a second spring is sleeved outside the optical axis, one end of the second spring abuts against the blocking block, and the other end of the second spring abuts against the fixing block.

As another preferable mode of the technical scheme, the turnover mechanism comprises a cam shaft rotatably mounted on a blocking support, one end of the cam shaft is fixedly connected with a blocking block mounting plate, the blocking block is fixedly mounted on the blocking block mounting plate, and the blocking block is positioned above a goods shelf vehicle rail under the working condition that a shuttle does not enter or exit a lifting machine; the cam shaft is fixedly connected with an overturning cam, a spiral groove is formed in the overturning cam, push rod supports are connected to two sides of the blocking support, the push rod is in sliding connection with the push rod supports, the push rod comprises a first connecting section, a second connecting section and a third connecting section, the first connecting section is of a square tube structure, one end of a cam pin shaft is fixedly connected with the first connecting section, the other end of the cam pin shaft is installed in the spiral groove in a clearance mode, a third spring is sleeved outside the second connecting section, one end of the third spring abuts against the cam pin shaft, and the other end of the third spring abuts against the inner wall of the blocking support.

Further, the cam pin shaft is in threaded connection or welded with the first connecting section.

Further, a round hole is formed in one side of the blocking support, a track pin is fixedly connected to the lower portion of the push plate support, the track pin corresponds to the round hole in position, and when the cargo carrying trolley rail and the goods shelf trolley rail are in butt joint, the track pin is completely inserted into the round hole.

Further, the electric actuator adopts an electric cylinder or an electric push rod.

Further, the blocking block is made of polyurethane or rubber.

Further, the guide structure adopts a linear guide rail or a ball screw.

The beneficial effects of the utility model are as follows:

1) When the cargo trolley rail is in butt joint with the goods shelf trolley rail, the push plate is used for pushing the push rod to drive the blocking block on one side of the turnover mechanism to rotate, so that the automatic opening and closing of the trolley rail blocking module is realized, the number of motors is reduced, and the use cost of the layer-changing elevator is reduced.

2) The blocking block is made of polyurethane or rubber, so that noise generated when the push plate and the rail blocking module interact is reduced.

3) The fixed block is arranged on one side of the blocking block support, an optical axis is connected in the fixed block in a sliding mode, a second spring is sleeved outside the optical axis, one end of the second spring abuts against the blocking block, the other end of the second spring abuts against the fixed block, the second spring is used for buffering the impact of the shuttle vehicle wheel, and meanwhile the blocking block is convenient to reset automatically.

4) A round hole is formed in one side of the blocking support, a track pin shaft is fixedly connected to the lower portion of the push plate support, and when the cargo carrying trolley rail and the goods shelf trolley rail are in butt joint, the track pin shaft is completely inserted into the round hole; the freedom degree of the track pin shaft in the vertical direction is limited by the round hole, namely, the goods shelf trolley rail supports the goods carrying trolley rail, the rigidity of the goods carrying trolley rail is increased, when the shuttle gradually enters the goods carrying platform, the goods carrying trolley rail cannot sink due to load change due to the fact that the round hole limits the positioning pin shaft, and relative movement of the two trolley rails cannot occur at the butt joint position, so that the shuttle operates more stably.

Drawings

FIG. 1 is a schematic view of a rail blocking open/close structure for a layer change lift truck in accordance with the present utility model.

Fig. 2 is a side view of a rail blocking open-close structure of a layer-changing lift truck according to the present utility model.

Fig. 3 is a schematic diagram illustrating installation of a rail blocking module in embodiment 1 of a rail blocking opening and closing structure of a layer-changing lift truck according to the present utility model.

Fig. 4 is a perspective view of a track blocking module in an embodiment 1 of a track blocking open/close structure of a layer-changing lift truck according to the present utility model.

Fig. 5 is a schematic diagram of a tilting cam in embodiment 1 of a track blocking open/close structure of a layer-changing lift truck according to the present utility model.

Fig. 6 is a schematic diagram of a push rod in an embodiment 1 of a rail blocking open/close structure of a layer-changing lift truck according to the present utility model.

Fig. 7 is an assembly schematic diagram of a blocking block in an embodiment 1 of a rail blocking open/close structure of a layer-changing lift truck according to the present utility model.

FIG. 8 is an enlarged view of part A of FIG. 1 showing a track blocking open/close structure of a layer-changing lift truck according to the present utility model.

FIG. 9 is a schematic diagram showing the combination of a track blocking module and an opening/closing module in a track blocking opening/closing structure of a layer-changing lift truck according to the present utility model.

Fig. 10 is a schematic diagram of a track blocking module according to embodiment 2 in a track blocking open/close structure of a layer-changing lift truck according to the present utility model.

In the figure: 1. a cargo bed module; 101. a frame; 102. a guide structure; 103. a rail mounting plate; 104. cargo pallet rails; 105. an electric actuator; 2. goods shelf rail; 3. a rail blocking module; 301. a blocking bracket; 302. a blocking block bracket; 303. a round hole; 304. a flip cam; 3041. a spiral groove; 305. cam pin shaft; 306. a push rod; 3061. a first connection section; 3062. a second connection section; 3063. a third connecting section; 3064. a threaded hole; 307. a first spring; 308. a nut; 309. a fixed block; 310. a blocking piece; 311. an optical axis; 312. a second spring; 313. a circlip; 314. a cam shaft; 315. a blocking block mounting plate; 316. a push rod bracket; 317. a third spring; 4. an opening and closing module; 401. a push plate bracket; 402. a push plate; 403. and the track pin shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, in an illustrative embodiment of the utility model, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, a particular orientation configuration and operation, and thus should not be construed as limiting the present utility model.

Example 1

As shown in fig. 1-3 and fig. 8, the rail blocking and opening and closing structure of the layer-changing lift truck comprises a cargo platform module 1, a goods shelf rail 2, a rail blocking module 3 and an opening and closing module 4, wherein the cargo platform module 1 comprises a frame 101, a guide structure 102 is arranged at the lower part of the frame 101, a rail mounting plate 103 is slidably mounted on the guide structure 102, an electric actuator 105 is arranged at the lower part of the frame 101, the tail end of the electric actuator 105 is connected with the rail mounting plate 103, and cargo platform rails 104 are fixedly connected to two sides of the rail mounting plate 103; the tail end of the cargo carrying trolley rail 104 is provided with an opening and closing module 4, the opening and closing module 4 comprises a push plate support 401 fixedly arranged at the upper part of the cargo carrying trolley rail 104, and one side of the push plate support 401 is fixedly provided with a push plate 402; the goods shelf trolley rail 2 is fixedly arranged on a goods shelf and corresponds to the goods carrying trolley rail 104 in position; as shown in fig. 3, the rail blocking module 3 is fixedly installed at one end of the goods shelf rail 2, the rail blocking module 3 includes a blocking bracket 301 fixedly installed at the upper portion of the goods shelf rail 2, a turnover mechanism is rotatably installed at the upper portion of the blocking bracket 301, a blocking block 310 is arranged at one side of the turnover mechanism, under the working condition that the shuttle does not enter or exit the elevator, the rail blocking module 3 is in a closed state, at this time, the blocking block 310 is located above the goods shelf rail 2, as shown in fig. 3, the blocking block 310 forms a blocking effect on wheels of the shuttle, when a program or other components of the shuttle are abnormal, the shuttle is in the condition of continuing to walk in the elevator under the condition that the elevator cargo carrying platform does not reach the designated position, and at this time, equipment damage or other safety accidents are easy to be caused; the blocking block 310 positioned above the rail can play a good role in blocking the shuttle; the turnover mechanism is slidably connected with a push rod 306, the push rod 306 corresponds to the push plate 402 in position, the distance between the push plate 402 and the push rod 306 is smaller than the stroke of the electric actuator 105, and the push rod 306 drives the turnover mechanism to turn when sliding left and right on the turnover mechanism.

In this embodiment, the flip cam 304 and stop 310 are rotated 90 ° about the axis of the push rod 306.

As shown in fig. 3-4, a plurality of fixing blocks 309 are fixedly connected to one side of the blocking block bracket 302, an optical axis 311 is slidably connected to the fixing blocks 309, and as shown in fig. 7, an elastic retainer ring 313 is connected to one end of the optical axis 311, so as to prevent the optical axis 311 from sliding out of the fixing blocks 309; the blocking block 310 is fixedly arranged at one end of the optical axis 311, a second spring 312 is sleeved outside the optical axis 311, one end of the second spring 312 abuts against the blocking block 310, the other end of the second spring 312 abuts against the fixed block 309, and the second spring 312 is used for buffering the impact of the shuttle vehicle wheels and is convenient for automatically resetting the blocking block 310.

In this embodiment, as shown in fig. 3 and fig. 5-6, the turnover mechanism includes a blocking block bracket 302, the blocking block 310 is mounted on one side of the blocking block bracket 302, the inside of the blocking block bracket 302 is fixedly connected with a turnover cam 304, as shown in fig. 5, the turnover cam 304 is in a hollow cylindrical tubular structure, a cylindrical surface of the turnover cam 304 is provided with a spiral groove 3041, as shown in fig. 6, the push rod 306 includes a first connection section 3061, a second connection section 3062 and a third connection section 3063, two sides of the first connection section 3061 are provided with planes, and under the effect of a flat mounting hole on the side surface of the blocking block bracket 302, the mounted push rod 306 can only move horizontally along the axial direction and cannot rotate around the axial line, so as to limit the rotation of the push rod 306, the first connection section 3061 is mounted inside the turnover cam 304 in a clearance manner, the first connection section 3064 is provided with a threaded hole 3064, the threaded hole 3064 is connected with a cam pin shaft 305 in a threaded manner, and the cam pin 305 is disposed in the spiral groove 3041 in a clearance manner; the third connecting section 3063 is arranged outside the blocking support 301, a nut 308 is screwed at the tail end of the third connecting section 3063, a first spring 307 is sleeved outside the second connecting section 3062, one end of the first spring 307 abuts against the blocking support 301, and the other end of the first spring 307 abuts against the nut 308.

When the cargo carrier rail 104 is in butt joint with the goods shelf rail 2, the push plate 402 pushes the push rod 306 to move to one side of the goods shelf rail 2, and when the push rod 306 moves, the cam pin shaft 305 drives the overturning cam 304 and the blocking block bracket 302 on one side of the overturning cam 304 to overturn, so that the blocking block 310 gradually deviates from the upper part of the goods shelf rail 2, the opening and closing actions of the rail blocking module 3 are completed, and the shuttle is ensured to smoothly enter the layer-changing elevator.

As shown in fig. 8-9, a circular hole 303 is formed on one side of the blocking bracket 301, a track pin 403 is fixedly connected to the lower portion of the push plate bracket 401, the track pin 403 corresponds to the circular hole 303 in position, and when the cargo truck rail 104 and the shelf truck rail 2 are in butt joint, the track pin 403 is completely inserted into the circular hole 303; the freedom degree of the track pin shaft 403 in the vertical direction is limited by the round hole 303, namely, the goods shelf trolley rail 2 supports the goods carrying trolley rail 104, so that the rigidity of the goods carrying trolley rail 104 is increased, when a shuttle gradually enters the goods carrying platform, the goods carrying trolley rail 104 cannot sink due to load change due to the limitation of the round hole 303 on the positioning pin shaft, and the two trolley rails cannot move relatively at the butt joint position, so that the shuttle can run more stably.

As shown in fig. 2, the electric actuator 105 employs an electric cylinder or an electric push rod 306, and in this embodiment, the electric actuator 105 employs an electric cylinder.

In this embodiment, the blocking block 310 is made of polyurethane or rubber, which is advantageous in reducing noise generated when the push plate 402 interacts with the rail blocking module 3.

In this embodiment, the guide structure 102 is a linear guide.

Under the working condition that the shuttle does not enter or exit the elevator, the rail blocking module 3 is in a closed state, and the blocking block 310 is positioned above the goods shelf rail 2, as shown in fig. 8, the blocking block 310 forms a blocking effect on the wheels of the shuttle; when the shuttle program or other components are abnormal, the shuttle can continue to walk in the elevator under the condition that the elevator cargo table does not reach the designated position, equipment damage or other safety accidents are easy to occur at the moment, and the blocking block 310 above the vehicle rail can play a good role in blocking the shuttle; when abnormal conditions occur, the shuttle wheels collide with the blocking block 310, the blocking block 310 is stressed and then drives the optical axis 311 to move towards one side of the fixed block 309, and meanwhile, the second spring 312 is compressed to form a resilience force, in the application, the blocking block 310 is made of elastic polyurethane or rubber materials, and under the combined action of the second spring 312, the blocking block 310 plays a certain buffering role on the shuttle after being impacted, rigid collision is avoided, and therefore damage to parts such as wheels, wheel axles and the like is reduced to the greatest extent.

Before the shuttle enters the elevator, the cargo platform module 1 is lifted to a designated position, as shown in fig. 8, after the cargo platform module 1 is in place, the electric actuator 105 starts to work, the cargo platform rail 104 is pushed out by the rail mounting plate 103, and the push plate 402 and the rail pin 403 fixed on the cargo platform rail 104 move outwards along with the cargo platform rail 104 and are in contact with the push rod 306 and the nut 308. Because the distance between the push plate 402 and the push rod 306 is smaller than the stroke of the electric actuator 105, after the push plate 402 contacts the push rod 306, the push rod 306 is pushed to move forwards continuously, and the push rod 306 and the cam pin shaft 305 fixedly arranged on the push rod 306 move together; because the blocking block bracket 302 and the like are fixedly mounted on the turning cam 304, the blocking bracket 301, the blocking block 310 and the like can rotate anticlockwise along with the turning cam 304, and the blocking block 310 starts to gradually leave the surface of the shelf track 2;

when the end surfaces of the cargo trolley rail 104 and the goods shelf trolley rail 2 form butt joint (the end surface clearance is smaller than 1 mm), the electric actuator 105 stops working, at the moment, the push rod 306 loses power and does not move forward any more, and the turning cam 304, the blocking block bracket 302, the blocking block 310 and the like also stop rotating; in this embodiment, the flipping cam 304 and the blocking block 310 etc. will rotate 70-90 deg. about the axis of the push rod 306, as shown in fig. 9, depending on the size of the spiral groove 3041 on the flipping cam 304 and the stroke of the push rod 306. At this time, the blocking piece 310 is completely separated from the shelf rail 2, so that the shuttle can be ensured to smoothly enter the layer-changing elevator.

In addition, in the forward movement process of the push rod 306, the first spring 307 sleeved on the second connecting section 3062 of the push rod 306 is gradually compressed, when the pallet track 104 and the goods shelf track 2 are in butt joint, the spring is compressed to the shortest, the elastic force is maximized, after the shuttle completely enters the layer-changing elevator, the electric actuator 105 continues to work, the pallet track 104 and the shuttle on the track are pulled back, the push plate 402 moves inwards along with the track, the compressed spring is gradually released, the elastic force acts on the nut 308, the push rod 306 is driven to move inwards gradually, meanwhile, the overturning cam 304 rotates clockwise under the action of the cam pin shaft 305 and the spiral groove 3041, and finally, the parts such as the blocking block 310, the blocking block bracket 302 and the like rotate clockwise; when the cam pin 305 moves to one end of the spiral groove 3041, the cam pin 305 is blocked by the spiral groove 3041 to form a limit, at this time, the cam pin 305 and the push rod 306 cannot move continuously, the first spring 307 returns to the initial state, and the blocking block 310 returns to the upper surface of the shelf rail 2 to play a role of blocking again; the vehicle rail blocking module 3 is in a closed state, the blocking block 310 is limited under the action of the spiral groove 3041 and the first spring 307, the whole turnover mechanism forms self-locking, and the blocking block cannot be opened under the action of external vibration and impact, so that the safety and reliability of the vehicle rail blocking module are ensured; in the process that the cargo truck rail 104 gradually returns to the initial position, the positioning pin shafts fixed on the cargo truck rail 104 also gradually separate from the circular holes on the side surfaces of the blocking brackets 301, and finally move to the initial position; at this time, the blocking bracket 301 does not have a limiting effect on the positioning pin shaft any more, and the cargo table can be lifted.

In this embodiment, the flip cam 304 is sleeved on the push rod 306, and can rotate under the action of the cam pin 305. The push rod 306 not only plays a role in supporting the turnover cam 304, but also plays a role in controlling the turnover cam 304 through the cam pin shaft 305, so that the multifunctional turnover elevator has the advantages of multiple purposes, reduced number of parts, compact and simple whole structure, space saving, and reduced use cost of the layer-changing elevator blocking opening and closing structure.

Example 2

Unlike embodiment 1, as shown in fig. 10, the turnover mechanism includes a cam shaft 314 rotatably mounted on a blocking bracket 301, one end of the cam shaft 314 is fixedly connected with a blocking block mounting plate 315, the blocking block 310 is fixedly mounted on the blocking block mounting plate 315, and the blocking block 310 is located above the pallet track 2 under the condition that the shuttle does not enter or exit the elevator; the cam shaft 314 is fixedly connected with a turnover cam 304, a spiral groove 3041 is formed in the turnover cam 304, two sides of the blocking support 301 are connected with a push rod support 316, the push rod 306 is in sliding connection with the push rod support 316, the push rod 306 comprises a first connecting section 3061, a second connecting section 3062 and a third connecting section 3063, as shown in fig. 10, the first connecting section 3061 is of a square tube structure and is used for limiting rotation of the push rod 306, one end of a cam pin 305 is fixedly connected with the first connecting section 3061, the other end of the cam pin 305 is installed in the spiral groove 3041 in a clearance mode, a third spring 317 is sleeved outside the second connecting section 3062, one end of the third spring 317 abuts against the cam pin 305, and the other end of the third spring 317 abuts against the inner wall of the blocking support 301; when the push plate 402 hits the push rod 306 and pushes the push rod 306 to move to one side of the goods shelf trolley rail 2, the cam pin shaft 305 drives the overturning cam 304 to rotate, and the overturning cam 304 drives the blocking block 310 on the blocking block mounting plate 315 to overturn through the cam shaft 314, so that the blocking block 310 gradually deviates from the upper part of the goods shelf trolley rail 2, and therefore the opening and closing actions of the trolley rail blocking module 3 are completed, and the shuttle is ensured to smoothly enter the layer-changing elevator.

As shown in fig. 10, in this embodiment, the first connecting section 3061 is provided with a threaded hole 3064, and the cam pin 305 is screwed with the first connecting section 3061.

The foregoing is merely illustrative and explanatory of the utility model, as it is well within the scope of the utility model as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The rail blocking and opening and closing structure of the layer-changing lifting locomotive is characterized by comprising a cargo table module, a goods shelf rail, a rail blocking module and an opening and closing module; the cargo carrying platform module comprises a frame, a trolley rail mounting plate is slidingly arranged at the lower part of the frame through a guide structure, two sides of the trolley rail mounting plate are fixedly connected with a cargo carrying platform trolley rail, an electric actuator is arranged at the lower part of the frame, the tail end of the electric actuator is connected with the trolley rail mounting plate,

the opening and closing module comprises a push plate bracket fixedly arranged at the upper part of the cargo trolley rail and a push plate arranged at one side of the push plate bracket; the rail blocking module comprises a blocking bracket fixedly arranged at one end of the goods shelf rail, a turnover mechanism is rotatably arranged at the upper part of the blocking bracket, and a blocking block is arranged at one side of the turnover mechanism; the turnover mechanism is connected with a push rod corresponding to the position of the push plate in a sliding manner, the distance between the push plate and the push rod is smaller than the stroke of the electric actuator, and the push rod drives the turnover mechanism to turn when sliding left and right on the turnover mechanism.

2. The track blocking and opening and closing structure of a layer-changing elevator car according to claim 1, wherein the turnover mechanism comprises a blocking block support, the blocking block is mounted on one side of the blocking block support, a turnover cam is fixedly connected inside the blocking block support, the turnover cam is of a hollow cylindrical tubular structure, a spiral groove is formed in a cylindrical surface of the turnover cam, the push rod comprises a first connecting section, a second connecting section and a third connecting section, planes are arranged on two sides of the first connecting section, the first connecting section is mounted inside the turnover cam in a clearance mode, a threaded hole is formed in the first connecting section, a cam pin shaft is connected in the threaded hole in a threaded mode, and the cam pin shaft is arranged in the spiral groove in a clearance mode; the third connecting section is arranged outside the blocking support, a nut is connected to the tail end of the third connecting section in a threaded mode, a first spring is sleeved outside the second connecting section, one end of the first spring abuts against the blocking support, and the other end of the first spring abuts against the nut.

3. The track blocking and opening structure of a layer changing elevator car according to claim 2, wherein the turning cam and the blocking block rotate about the axis of the push rod by an angle of 70 ° -90 °.

4. The barrier opening and closing structure of a layer-changing lift locomotive rail according to claim 2 or 3, wherein a plurality of fixing blocks are fixedly connected to one side of the barrier block support, an optical axis is slidably connected to the fixing blocks, and an elastic retainer ring is connected to one end of the optical axis; the blocking block is fixedly arranged at one end of the optical axis, a second spring is sleeved outside the optical axis, one end of the second spring abuts against the blocking block, and the other end of the second spring abuts against the fixing block.

5. The barrier opening and closing structure of a rail of a layer-changing lift truck according to claim 1, wherein the turnover mechanism comprises a cam shaft rotatably installed on a barrier bracket, one end of the cam shaft is fixedly connected with a barrier block installation plate, the barrier block is fixedly installed on the barrier block installation plate, the cam shaft is fixedly connected with a turnover cam, and the turnover cam is provided with a spiral groove;

the novel anti-collision device is characterized in that push rod supports are connected to two sides of the blocking support, the push rod is in sliding connection with the push rod supports, the push rod comprises a first connecting section, a second connecting section and a third connecting section, the first connecting section is of a square tube structure, one end of a cam pin shaft is fixedly connected with the first connecting section, the other end of the cam pin shaft is installed in a spiral groove in a clearance mode, a third spring is sleeved outside the second connecting section, one end of the third spring abuts against the cam pin shaft, and the other end of the third spring abuts against the inner wall of the blocking support.

6. The track blocking open-close structure of a layer changing elevator car according to claim 5, wherein the cam pin is screwed or welded with the first connecting section.

7. The barrier opening and closing structure of a layer-changing lift truck rail according to claim 1, wherein a circular hole is formed in one side of the barrier support, a rail pin is fixedly connected to the lower portion of the push plate support, the rail pin corresponds to the circular hole in position, and when the cargo truck rail and the goods shelf truck rail are in butt joint, the rail pin is completely inserted into the circular hole.

8. The track blocking and opening and closing structure of a layer-changing lift truck according to claim 1, wherein the electric actuator is an electric cylinder or an electric push rod.

9. The barrier opening and closing structure of a railway of a layer-changing lift car according to claim 1, wherein the barrier block is made of polyurethane or rubber.

10. The track blocking and opening and closing structure of a layer changing elevator car according to claim 1, wherein the guide structure adopts a linear guide rail or a ball screw.