A large capacity shopping cart escalator

Abstract

The application discloses a large-capacity shopping cart escalator, and aims at solving the problem that in the prior art, when a large-capacity shopping cart is designed, a more protruding drag plate needs to be designed, so that the rotation radius of the escalator is increased, the size of the whole escalator equipment is increased, and the production cost is increased. The application solves the above technical problem through the following technical scheme: a rear wheel conveying track and a drag plate conveying track are arranged on a truss; a driving assembly comprises a driving main shaft, a drag chain sprocket arranged on the driving main shaft and a driving main machine for driving the drag chain sprocket to rotate; a drag plate chain and a drag plate are wound on the drag chain sprocket; one end of the drag plate is rotatably arranged on a rotating shaft of the drag plate chain, and the other end of the drag plate is abutted against the drag plate conveying track; a drag plate groove is further arranged on the drag plate; the angle of the drag plate is adjusted along the track of the drag plate conveying track, so that the angle of the shopping cart is adjusted, and the interference between the shopping cart and the escalator is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the escalator technical field, more particularly, it relates to a large capacity shopping cart escalator. BACKGROUND

[0002] The shopping cart escalator has been popular in recent years, and is usually arranged in parallel with the escalator in the shopping supermarket, the escalator is used for conveying passengers up and down, and the shopping cart escalator is only used for conveying the shopping cart up and down.

[0003] With the improvement of living standards, the capacity of the shopping cart is also getting larger and larger, and the larger the capacity of the shopping cart is, the smaller the distance between the tail of the shopping cart basket and the ground is. When designing the shopping cart escalator, whether the tail of the shopping basket and the escalator equipment cover interfere with each other needs to be considered. If the conventional design is adopted, a more protruding drag plate is needed, although the interference can be avoided, but the too protruding drag plate will greatly increase the turning radius, thereby increasing the size of the entire escalator equipment and increasing the production cost. SUMMARY

[0004] The present application overcomes the deficiency in the prior art that a more protruding drag plate is needed when designing a large capacity shopping cart, thereby increasing the turning radius of the escalator, and further increasing the size of the entire escalator equipment and further increasing the production cost, and provides a large capacity shopping cart escalator which can be applied to larger capacity shopping carts without increasing the turning radius of the escalator and without the interference between the shopping cart and the escalator.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: a large capacity shopping cart escalator, comprising:

[0006] A truss, the truss is provided with a rear wheel transportation track and a drag plate transportation track;

[0007] A driving assembly, comprising a driving main shaft, a drag chain sprocket provided on the driving main shaft and a driving main machine driving the drag chain sprocket to rotate;

[0008] A drag chain assembly, comprising a drag plate chain wound on the drag chain sprocket and a drag plate; one end of the drag plate is rotatably arranged on the rotating shaft of the drag plate chain, and the other end of the drag plate abuts against the drag plate transportation track; the drag plate is further provided with a drag plate groove;

[0009] The crosspiece of the shopping cart is clamped in the drag plate groove, the drag chain sprocket drives the drag plate chain to move, the drag plate chain drives the drag plate to move along the truss, the drag plate adjusts the angle of the drag plate along the track of the drag plate transportation track, thereby adjusting the angle of the shopping cart, and preventing the interference between the shopping cart and the escalator.

[0010] When the shopping cart is moved along the escalator under the driving of the drag plate, one end of the drag plate is rotationally connected with the chain, and the other end of the drag plate is moved along the drag plate transportation track, so that the drag plate moves along the track of the drag plate transportation track during the movement of the drag plate, thereby changing the included angle between the drag plate and the ground, changing the position of the shopping cart crosspiece, and adjusting the posture of the shopping cart, thereby avoiding the interference between the large-capacity shopping cart and the escalator.

[0011] Preferably, the drag plate is triangular; the three top corners of the triangular drag plate are a first top corner, a second top corner and a third top corner respectively; the first top corner is rotationally connected with the rotation shaft of the drag plate chain, and the drag plate groove is arranged at the second top corner; and the third top corner is provided with an abutting wheel abutting against the drag plate transportation track.

[0012] The triangular shape has stability, and during the movement of the drag plate, the drag plate groove, the abutting wheel and the first perforation have one stress point respectively, so that the drag plate can remain stable during movement.

[0013] Preferably, one side of the drag plate groove is provided with a movable drag hook and a reset member for resetting the movable drag hook; the crosspiece of the shopping cart hits the movable drag hook, so that the movable drag hook rotates to avoid the crosspiece of the shopping cart, and after the crosspiece of the shopping cart passes the movable drag hook, the drag plate moves to clamp the crosspiece of the shopping cart into the drag plate groove.

[0014] The movable drag hook makes the crosspiece easily clamped into the drag plate groove.

[0015] Preferably, the side of the movable drag hook away from the drag plate groove is provided with a circular arc surface.

[0016] When the crosspiece of the shopping cart hits the circular arc surface, the circular arc surface plays a guiding role, so that the crosspiece of the shopping cart can more easily pass the movable drag hook.

[0017] Preferably, the driving assembly further comprises a main driving sprocket arranged on the driving main shaft, and the output end of the driving main machine is provided with an output wheel, and the output wheel and the main driving sprocket are driven by a chain.

[0018] The drag chain of the drag plate passes through the drag chain sprocket on the driving driven shaft and the drag chain sprocket on the driving main shaft, the driving main machine drives the main driving sprocket to rotate through the chain, the main driving sprocket drives the driving main shaft to rotate, and the driving main shaft drives the drag chain sprocket to rotate, and the drag chain sprocket drives the drag chain of the drag plate to move.

[0019] Preferably, a gate and an opening door assembly for automatically opening and closing the gate are arranged on both sides of the end of the truss.

[0020] The gate and the door opening assembly can be arranged at both ends of the elevator to prevent customers from entering the escalator for shopping carts by mistake and to prevent danger.

[0021] Preferably, the door opening assembly comprises:

[0022] The door opening driving turntable is uniformly provided with a plurality of turntable levers in the circumferential direction.

[0023] The rotating pressing block is slidingly arranged on the gate rotating shaft, and the bottom of the rotating pressing block is provided with a pressing block spring for pushing the rotating pressing block to move in the vertical direction. The sidewall of the rotating pressing block is provided with a protruding rod, an upper circular arc groove and a lower circular arc groove. The top of the rotating pressing block is provided with a boss.

[0024] The limiting assembly comprises a limiting rod and a limiting compression spring, and the limiting compression spring pushes the end of the limiting rod to abut against the upper circular arc groove or the lower circular arc groove. The top of the limiting rod close to the rotating pressing block is respectively provided with an upper slope and a lower slope.

[0025] The triggering assembly pushes the rotating pressing block to move downward when the shopping cart approaches the gate or passes through the gate.

[0026] By arranging the door opening assembly, the power of the driving main shaft can be utilized, and the automatic opening and closing of the gate can be realized when the shopping cart passes through the gate by the cooperation of the triggering assembly. Therefore, the customers can be effectively prevented from entering the escalator for shopping carts by mistake, and the danger can be prevented.

[0027] Preferably, the triggering assembly comprises a triggering pressing plate, a triggering pressing rod and a pressing plate reset torsion spring, the pressing plate reset torsion spring enables the triggering pressing plate to reset, one end of the triggering pressing rod is fixedly connected with the triggering pressing plate, the other end of the triggering pressing rod is provided with a pressing rod waist hole, and the gate rotating shaft is arranged in the pressing rod waist hole.

[0028] The triggering assembly can be independently provided with a cylinder, and when the sensor detects that the shopping cart approaches or moves away from the gate, the cylinder is pushed to act on the rotating pressing block to press the rotating pressing block downward. In the embodiment, the mechanical mechanism is used to complete the process of pressing the rotating pressing block downward, and has the advantages of stable structure and low cost.

[0029] Preferably, the driving main shaft is provided with a transmission small chain wheel, the door opening driving turntable is fixedly arranged on a door opening driving shaft, the door opening driving shaft is provided with a door opening small chain wheel, and the door opening small chain wheel is driven by the transmission small chain wheel through a chain.

[0030] The door opening driving turntable can be independently driven to rotate by a motor. In the embodiment, in order to save cost, the door opening driving disc is connected with the driving main shaft. The driving main shaft drives the door opening driving shaft to rotate through the chain, so that the door opening driving disc rotates.

[0031] As preferred, a rotation shaft sliding groove is arranged along the axial direction of the side wall of the gate rotation shaft, and a boss sliding block is arranged on the rotation pressing block and matched with the rotation shaft sliding groove.

[0032] So that the rotation pressing block can slide along the axial direction of the gate rotation shaft, but the rotation pressing block cannot rotate relatively with the gate rotation shaft in the circumferential direction.

[0033] Compared with the prior art, the application has the beneficial effects that:

[0034] (1) In the application, the posture of the shopping cart when moving on the escalator can be adjusted through the cooperation between the drag plate and the drag plate transportation track, so that interference between the shopping cart and the escalator is avoided; the rotation radius of the escalator does not need to be changed, and the size of other equipment of the escalator does not need to be changed, so that the transportation of large shopping carts can be realized.

[0035] (2) The door opening assembly is arranged, the power of the driving main shaft can be utilized, the cooperation of the triggering assembly can be utilized, the automatic opening and closing of the gate can be realized when the shopping cart passes through the gate, so that customers can be effectively prevented from entering the gate and entering the escalator special for the shopping cart, and the occurrence of danger can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic diagram of the application.

[0037] Figure 2 is a running track diagram of the shopping cart on the escalator of the application.

[0038] Figure 3 is a structural diagram of the driving assembly of the application.

[0039] Figure 4 is a three-dimensional structural diagram of the drag chain assembly of the application.

[0040] Figure 5 is a front view of the drag chain assembly of the application.

[0041] Figure 6 is a schematic diagram of the shopping cart crossbar impacting the movable drag hook.

[0042] Figure 7 is a schematic diagram of the shopping cart crossbar passing through the movable drag hook.

[0043] Figure 8 is a three-dimensional structural diagram of the door opening assembly of the application.

[0044] Figure 9 is a three-dimensional structural diagram of the gate rotation shaft and the triggering assembly of the application.

[0045] Figure 10It is the structure schematic view of the door opening drive rotating disc cooperating with the drive spindle of the application.

[0046] Figure 11 It is the structure schematic view of the shopping cart front wheel pressing on the trigger pressing plate of the application.

[0047] Figure 12 It is the perspective structure view of the rotating pressing block of the application.

[0048] Figure 13 It is the perspective structure view of the gate rotating shaft of the application.

[0049] Figure 14 It is the perspective structure view of the limiting assembly of the application.

[0050] In the figure: 1, truss, 11, rear wheel transportation track, 12, drag plate transportation track, 13, high end, 14, bottom end, 15, crosspiece;

[0051] 2, drive assembly, 21, drive spindle, 22, drag chain sprocket, 23, drive master, 24, main drive sprocket, 25, transmission small sprocket,

[0052] 3, drag plate chain;

[0053] 4, drag plate, 41, first perforation, 42, drag plate groove, 43, abutting wheel, 44, movable drag hook, 45, reset piece, 46, groove perforation, 47, groove rotating shaft, 48, groove limiting block;

[0054] 5, gate, 51, gate rotating shaft, 511, rotating shaft sliding groove, 52, gate torsional spring;

[0055] 6, trigger assembly, 61, trigger rotating shaft, 62, trigger pressing plate, 63, trigger pressing rod, 631, pressing rod waist hole, 64, pressing plate reset torsional spring, 65, rotating shaft fixing seat;

[0056] 7, door opening drive rotating disc, 71, rotating disc lever, 72, door opening drive shaft, 73, door opening small sprocket;

[0057] 8, rotating pressing block, 81, through hole, 82, pressing block spring, 83, protruding rod, 84, upper circular arc groove, 85, lower circular arc groove, 86, boss, 87, boss sliding block;

[0058] 9, limiting assembly, 91, limiting rod, 911, upper slope, 912, lower slope, 92, limiting compression spring. DETAILED DESCRIPTION

[0059] The technical solutions of the application will be further described in detail below through specific embodiments and in combination with the drawings:

[0060] Embodiment 1: refer to Figures 1 to 7As shown in the figure, a large-capacity shopping cart escalator comprises:

[0061] A truss 1 is provided with a rear wheel transport track 11 and a drag plate transport track 12.

[0062] A drive assembly 2 comprises a drive main shaft 21, a drag chain sprocket 22 arranged on the drive main shaft 21, and a drive main machine 23 for driving the drag chain sprocket 22 to rotate.

[0063] A drag chain assembly comprises a drag plate chain 3 wound around the drag chain sprocket 22 and a drag plate 4. One end of the drag plate 4 is rotatably arranged on the rotating shaft of the drag plate chain 3, and the other end of the drag plate 4 abuts against the drag plate transport track 12. The drag plate 4 is further provided with a drag plate groove 42.

[0064] The rung 15 of the shopping cart is clamped in the drag plate groove 42, the drag chain sprocket 22 drives the drag plate chain 3 to move, the drag plate chain 3 drives the drag plate 4 to move along the truss 1, the drag plate 4 adjusts the angle of the drag plate 4 along the track of the drag plate transport track 12, thereby adjusting the angle of the shopping cart, and preventing the shopping cart from interfering with the escalator.

[0065] In the present application, when the shopping cart moves along the escalator under the driving of the drag plate 4, one end of the drag plate 4 is rotatably connected with the chain, and the other end of the drag plate 4 moves along the drag plate transport track 12, so that the drag plate 4 moves along the track of the drag plate transport track 12 during the movement of the drag plate 4, thereby changing the included angle between the drag plate 4 and the ground, changing the position of the rung 15 of the shopping cart, and adjusting the posture of the shopping cart, thereby avoiding the interference between the large-capacity shopping cart and the escalator. Compared with the prior art, in the present application, the posture of the shopping cart during movement on the escalator can be adjusted through the cooperation between the drag plate 4 and the drag plate transport track 12, thereby avoiding the interference between the shopping cart and the escalator; without changing the turning radius of the escalator or the size of other equipment of the escalator, the transportation of the large shopping cart can be realized.

[0066] Embodiment 2: refer to Figures 1 to 7 As shown in the figure, a large-capacity shopping cart escalator comprises: a truss 1, a drive assembly 2, and a drag chain assembly.

[0067] The truss 1 is provided with a rear wheel transport track 11 and a drag plate transport track 12; the rear wheel transport track 11 is arranged on both sides of the width direction of the truss 1, and is matched with the two rear wheels of the shopping cart during the transportation of the shopping cart; the drag plate transport track 12 is arranged between the two rear wheel transport tracks 11.

[0068] As shown in the figure, Figure 1 and Figure 3 The drive assembly 2 comprises a drive main shaft 21, a drag chain sprocket 22 arranged on the drive main shaft 21, and a drive main machine 23 for driving the drag chain sprocket 22 to rotate.

[0069] The cable chain assembly includes a cable chain 3 and a cable plate 4 wound around a cable chain sprocket 22; one end of the cable plate 4 is rotatably mounted on the shaft of the cable chain 3, and the other end of the cable plate 4 abuts against the cable transport track 12; the cable plate 4 is also provided with a cable plate groove 42.

[0070] The shopping cart includes a shopping basket, and two front support legs and a rear support leg located at the bottom of the basket. The front support legs have front wheels at their ends, and the rear support legs have rear wheels at their ends. A crossbar 15 is provided between the two front support legs.

[0071] The shopping cart's crossbar 15 is engaged in the tray groove 42. The chain sprocket 22 drives the chain to move, and the tray chain 3 drives the tray 4 to move along the truss 1. The tray 4 moves along the trajectory of the tray transport track 12. Adjusting the angle of the tray 4's undulations adjusts the angle of the shopping cart, thus preventing the shopping cart from interfering with the escalator.

[0072] The truss 1 has a high end 13 and a low end 14. In this embodiment, the drive assembly 2 is located at the high end 13 of the truss 1. A driven shaft is located at the low end 14 of the truss 1, and a drag chain sprocket 22 is also located on the driven shaft. A main drive sprocket 24 is also located on the main drive shaft 21, and an output wheel is located at the output end of the drive host 23. The output wheel and the main drive sprocket 24 are connected by a chain. The drag chain 3 passes around the drag chain sprocket 22 on the driven shaft and the drag chain sprocket 22 on the drive host 21. The drive host 23 drives the main drive sprocket 24 to rotate via the chain. The main drive sprocket drives the drive host 21 to rotate. The drive host 21 drives the drag chain sprocket 22 to rotate. The drag chain sprocket 22 then drives the drag chain 3 to move.

[0073] like Figures 5 to 7 As shown, the slide plate 4 is triangular, with three vertices: a first vertices, a second vertices, and a third vertices. A first through hole 41 is provided at the first vertices, through which the shaft of the slide plate chain 3 passes, allowing the first vertices of the triangular slide plate 4 to be rotatably connected to the shaft of the slide plate chain 3. A slide plate groove 42 is provided at the second vertices. An abutment wheel 43 is provided at the third vertices, abutting against the slide plate transport track 12. The third vertices are located below the first and second vertices, and the abutment wheel 43 is also located below the first and second vertices when the escalator is running.

[0074] The movable tow hook 44 is arranged on one side of the tow plate groove 42, and the movable tow hook 44 is reset by a reset member 45. Specifically, the movable tow hook 44 is arranged on the side of the tow plate groove 42 close to the first top corner. A groove through hole 46 is arranged on one side of the tow plate groove 42, and a groove rotating shaft 47 is arranged in the groove through hole 46. The movable tow hook 44 is rotatably arranged on the groove rotating shaft 47, and the reset member 45 is a torsion spring. The torsion spring is arranged on the groove rotating shaft 47, so that the movable tow hook 44 can be reset. A groove limiting block 48 is arranged in the groove for limiting the position of the movable tow hook 44. The reset member 45 abuts against the groove limiting block 48.

[0075] The crossbar 15 of the shopping cart hits the movable tow hook 44, so that the movable tow hook 44 rotates to avoid the crossbar of the shopping cart. After the crossbar of the shopping cart passes the movable tow hook 44, the tow plate 4 moves to clamp the crossbar of the shopping cart into the tow plate groove 42.

[0076] In one embodiment, two tow plate chains 3 are arranged on both sides of the tow plate 4. Therefore, two tow chain sprockets 22 corresponding to the two tow plate chains 3 are arranged on the driving main shaft 21 and the driving driven shaft.

[0077] The two tow plate chains 3 are arranged on both sides of the tow plate 4, so that uniform thrust can be applied to both sides of the tow plate 4, thereby providing more stable thrust for the tow plate 4 and the transportation of the shopping cart.

[0078] In one embodiment, the side of the movable tow hook 44 away from the tow plate groove 42 is arranged as a circular arc surface. When the crossbar 15 of the shopping cart hits the circular arc surface, the circular arc surface guides the crossbar 15 of the shopping cart to pass the movable tow hook 44 more easily.

[0079] In one embodiment, the triangular tow plate 4 is a sector. The third tow plate 4 is a sector with the first top corner as the center and the second top corner and the third top corner as the endpoints. That is, the distance between the first top corner and the second top corner is L1, the distance between the first top corner and the third top corner is L2, and the second top corner and the third top corner are a circular arc segment C.

[0080] The sector is used as the structure of the tow plate 4, and the center of the sector is rotatably connected to the rotating shaft of the tow plate chain 3. When the tow plate 4 rotates, the tow plate groove 42 and the abutting wheel 43 rotate around the center of the tow plate 4. Therefore, when designing and calculating, the corresponding tow plate transportation track 12 can be more easily and accurately designed according to the size of the sector tow plate 4.

[0081] The working principle of the embodiment is as follows: taking the escalator lower part as an example, the customer pushes the shopping cart into the escalator equipment, first, the crosspiece 15 of the shopping cart will collide with the movable hook 44, under the impact of the crosspiece 15, the movable hook 44 will overcome the force of the reset member 45, and the movable hook 44 will rotate. At the same time, with the movement of the shopping cart, the angle of rotation of the movable hook 44 gradually increases, and after the crosspiece 15 passes the movable hook 44, the movable hook 44 is reset under the action of the torsional spring, and the movable hook 44 abuts on the groove limiting member, and returns to the original position.

[0082] Then the drag plate 4 moves forward under the driving of the drag plate chain 3, in the process of moving of the drag plate 4, the movable hook 44 abuts against the crosspiece 15, the movable hook 44 pushes the crosspiece 15 to move forward, and then the drag plate 4 rotates around the first top corner under the action of the drag plate transport track 12, so that the drag plate groove 42 starts to lift upward, and the crosspiece falls completely in the drag plate groove 42.

[0083] When the shopping cart moves along the escalator under the driving of the drag plate 4, one end of the drag plate 4 is rotationally connected with the drag plate chain 3, and the other end of the drag plate 4 moves along the drag plate transport track 12, so that in the process of moving of the drag plate 4, the drag plate 4 moves along the track of the drag plate transport track 12, thereby changing the included angle between the drag plate 4 and the ground, changing the position of the crosspiece 15 of the shopping cart, and adjusting the posture of the shopping cart, thereby avoiding the interference between the large-capacity shopping cart and the escalator.

[0084] Compared with the prior art, in the present application, the posture of the shopping cart moving on the escalator can be adjusted through the cooperation between the drag plate 4 and the drag plate transport track 12, so that the interference between the shopping cart and the escalator can be avoided; without changing the rotation radius of the escalator or the size of other equipment of the escalator, the transportation of the large shopping cart can be realized.

[0085] Embodiment 3: referring to Figures 8 to 14 The embodiment is similar to the structure in embodiment 2, and the difference lies in that the gate 5 and the door opening assembly for driving the door gate to automatically open and close are arranged on both sides of the end of the truss 1. The gate 5 and the door opening assembly can be arranged at both ends of the escalator, and when the shopping cart passes through the gate 5, the gate 5 can be automatically opened and closed, so that the shopping cart can smoothly enter the shopping cart special escalator, and in the normal state, the gate 5 is kept closed, thereby preventing customers from mistakenly entering the shopping cart special escalator and causing danger. In the embodiment, only the gate 5 and the door opening assembly are arranged at the entrance of the escalator. The gate 5 in the embodiment is provided with two gates 5, and the two gates 5 correspond to one door opening assembly respectively.

[0086] The door opening assembly comprises a trigger assembly 6, a door opening driving turntable 7, a rotating pressing block 8 and a limiting assembly 9.

[0087] The circumferential direction of the door opening driving turntable 7 is uniformly distributed with a plurality of turntable levers 71.

[0088] As shown in Figure 8 , Figure 9 , the gate shaft 51 is connected with the gate 5, and the gate shaft 51 can drive the gate 5 to rotate. The gate torsional spring 52 is arranged on the gate shaft 51, and the gate torsional spring 52 can reset the gate shaft 51. When the gate shaft 51 loses external force, the gate 5 is reset under the action of the valve torsional spring, and the two gates 5 are horizontally arranged at the escalator entrance to close the entrance of the escalator.

[0089] As shown in Figure 12 , the rotating block 8 is provided with a through hole 81, and the gate shaft 51 is arranged in the through hole 81. The rotating block 8 is slidingly arranged on the gate shaft 51.

[0090] The bottom of the rotating block 8 is provided with a block spring 82 for pushing the rotating block 8 to move in the vertical direction. The side wall of the rotating block 8 is provided with a protruding rod 83, an upper circular arc groove 84 and a lower circular arc groove 85. The top of the rotating block 8 is provided with a boss 86, and the boss 86 is provided with two bosses 86 corresponding to the axis of the through hole 81. The side wall of the gate shaft 51 is provided with a shaft sliding groove 511 arranged in the axial direction, and the rotating block 8 is provided with a boss sliding block 87 matched with the shaft sliding groove 511, so that the rotating block 8 can slide along the axial direction of the gate shaft 51, but the rotating block 8 cannot rotate relative to the gate shaft 51 in the circumferential direction.

[0091] As shown in Figure 13 , the limiting component 9 includes a limiting rod 91 and a limiting compression spring 92, and the limiting compression spring 92 pushes the end of the limiting rod 91 to abut against the upper circular arc groove 84 or the lower circular arc groove 85. The top of the limiting rod 91 close to the rotating block 8 is respectively provided with an upper inclined slope 911 and a lower inclined slope 912.

[0092] The trigger component 6 pushes the rotating block 8 to move downward when the shopping cart approaches the gate 5 or passes through the gate 5, so that the protruding rod 83 is inserted into the turntable lever 71 of the door opening driving turntable 7, the turntable lever 71 of the door opening driving turntable 7 is rotated, the protruding rod 83 is rotated, the rotating block 8 is rotated, and the gate 5 is rotated at the same time, so as to realize the opening of the door.

[0093] The door opening driving turntable 7 can be driven to rotate by a motor. In the embodiment, the door opening driving turntable 7 is connected with the driving main shaft 21 to save cost. Specifically, the door opening driving turntables 7 on the two groups of door opening assemblies are connected with a door opening driving shaft 72, and the two door opening driving turntables 7 are fixedly arranged on the door opening driving shaft 72. A door opening small chain wheel 73 is arranged on the door opening rotating shaft. A transmission small chain wheel 25 is arranged on the driving main shaft 21, and the door opening small chain wheel 73 is driven by the transmission small chain wheel 25 through a chain. The driving main shaft 21 drives the door opening driving shaft 72 to rotate through the chain, so that the door opening driving turntable 7 rotates.

[0094] In one embodiment, the trigger assembly 6 includes a trigger rotating shaft 61, a trigger pressing plate 62, a trigger pressing rod 63 and a pressing plate reset torsion spring 64. The trigger pressing plate 62 is fixedly arranged on the trigger rotating shaft 61, and a rotating shaft fixing seat 65 is arranged on the truss 1. The trigger rotating shaft 61 penetrates through the rotating shaft fixing seat 65 and can rotate in the rotating shaft fixing seat 65. The pressing plate reset torsion spring 64 enables the trigger pressing plate 62 to reset.

[0095] The trigger pressing rod 63 is fixedly arranged at both ends of the trigger rotating shaft 61. One end of the trigger pressing rod 63 is fixedly connected with the trigger pressing plate 62, and the other end is provided with a pressing rod waist hole 631. The gate rotating shaft 51 penetrates through the pressing rod waist hole 631.

[0096] When the wheel (front wheel or rear wheel) of the shopping cart presses on the trigger pressing plate 62, the trigger pressing plate 62 rotates to drive the trigger rotating shaft 61 to rotate, and the trigger rotating shaft 61 drives the trigger pressing rod 63 to rotate, so that the end of the pressing rod waist hole 631 of the trigger pressing rod 63 acts on the boss 86 to press down the rotating pressing block 8. Of course, a cylinder can also be arranged separately. When the sensor detects that the shopping cart approaches or moves away from the gate 5, the cylinder acts on the rotating pressing block 8 to press it down. In the embodiment, the mechanical mechanism is used to complete the pressing process of the rotating pressing block 8, which has the advantages of stable structure and low cost.

[0097] The working principle of the embodiment is as follows: when the shopping cart approaches the gate 5, the front wheel passes through the trigger pressing plate 62 and presses down the trigger pressing plate 62, so that the trigger pressing plate 62 drives the trigger rotating shaft 61 to rotate, and then the trigger rotating shaft 61 drives the trigger pressing rod 63 to swing, so that the trigger pressing rod 63 presses down the boss 86 on the rotating pressing block 8.

[0098] The protruding rod 83 of the rotating pressing block 8 is located above the turntable shifting rod 71 in the initial position, that is, the door opening driving turntable 7 normally rotates without contacting the protruding rod 83, and the lower slope 912 of the limiting rod 91 is located in the lower circular arc groove 85.

[0099] When the rotating block 8 is moved downward under the action of the trigger pressure rod 63, the convex rod 83 falls between the two rotating disc push rods 71. At the same time, the convex ridge between the lower circular arc groove 85 and the upper circular arc groove 84 on the rotating block 8 pushes the lower slope 912, so that the end of the lower slope 912 of the limiting rod 91 slides from the lower circular arc groove 85 into the upper circular arc groove 84. Under the action of the limiting rod 91, the convex rod 83 is always limited between the two rotating disc push rods 71 before the rotating block 8 is rotated. At this time, the block spring 82 is compressed, and the gate torsion spring 52 is twisted and deformed.

[0100] With the continuous rotation of the door opening driving rotating disc 7, the rotating disc push rod 71 always pushes the convex rod 83 of the rotating block 8, so that the rotating block 8 is rotated, thereby driving the gate rotating shaft 51 to rotate, and the gate rotating shaft 51 drives the gate 5 to rotate, and the gate 5 is opened, so that the shopping cart can pass through the gate 5. In the process of rotating the rotating block 8, the end of the lower slope 912 slides in the upper circular arc groove 84.

[0101] When the gate 5 is fully opened to 90 degrees, the rotating block 8 at this time is also rotated by 90 degrees, and the end of the lower slope 912 at this time also slides to the end of the lower circular arc groove 85, and at the same time the convex platform 86 is also rotated by 90 degrees. In the initial position, the trigger pressure rod 63 acts on the convex platform 86 to press the rotating block 8 downward, so that the convex platform 86 falls into the projection range of the pressure rod waist hole 631.

[0102] When the front wheel of the shopping cart passes through the trigger pressure plate 62, the rear wheel continues to press the trigger pressure plate 62, so that the trigger pressure rod 63 is pressed again, and since the convex platform 86 at this time falls in the projection range of the pressure rod waist hole 631, the trigger pressure rod 63 does not act on the rotating block 8, but acts on the upper slope 911 of the limiting rod 91, and the horizontal projection length of the upper slope 911 is greater than that of the lower slope 912.

[0103] When the trigger pressure rod 63 acts on the upper slope 911, the limiting rod 91 always retreats backward, so that the end of the lower slope 912 is separated from the upper circular arc groove 84. The block spring 82 pushes the block to move upward and reset, so that the convex rod 83 is separated from between the two rotating disc push rods 71, the gate 5 is reset under the action of the gate torsion spring 52, and the gate 5 is closed again. At this time, the end of the lower slope 912 of the limiting rod 91 abuts against the lower circular arc groove 85 again.

[0104] In the embodiment, by setting the door opening assembly, the power of the driving main shaft 21 can be used to drive the rotating disc push rod 71 to rotate, and through the cooperation of the trigger assembly 6, the automatic opening and closing of the gate 5 can be realized when the shopping cart passes through the gate 5; thereby the customer can be effectively prevented from entering the gate 5 and entering the escalator dedicated to the shopping cart, and the danger can be prevented.

[0105] The above-mentioned embodiments are only the preferred schemes of the present application, and do not limit the present application in any form, and other variants and modifications can be made without departing from the technical scheme recited in the claims.

Claims

1. A large capacity shopping cart escalator characterized by, The utility model relates to a shopping trolley automatic lifting device, including: A truss is provided with a rear wheel transportation track and a drag plate transportation track; A drive assembly includes a drive spindle, a drag chain sprocket provided on the drive spindle, and a drive host that drives the drag chain sprocket to rotate; A drag chain assembly includes a drag plate chain wound around the drag chain sprocket and a drag plate; one end of the drag plate is rotatably provided on the rotating shaft of the drag plate chain, and the other end of the drag plate abuts against the drag plate transportation track; the drag plate is further provided with a drag plate groove; The crosspiece of the shopping trolley is clamped in the drag plate groove, the drag chain sprocket drives the drag plate chain to move, the drag plate chain drives the drag plate to move along the truss, the drag plate adjusts the angle of fluctuation along the track of the drag plate transportation track, thereby adjusting the angle of the shopping trolley, preventing the shopping trolley from interfering with the escalator.

2. The large capacity cart escalator of claim 1 wherein, The drag plate is triangular; the three vertices of the triangular drag plate are a first vertex, a second vertex, and a third vertex; the first vertex is rotatably connected to the rotating shaft of the drag plate chain, and the drag plate groove is provided at the second vertex; the third vertex is provided with an abutting wheel that abuts against the drag plate transportation track.

3. A large-capacity shopping cart escalator according to claim 1 or 2, characterized in that One side of the drag plate groove is provided with a movable drag hook and a reset member that resets the movable drag hook; the crosspiece of the shopping trolley strikes the movable drag hook, causing the movable drag hook to rotate and avoid the crosspiece of the shopping trolley, and after the crosspiece of the shopping trolley passes the movable drag hook, the drag plate moves to clamp the crosspiece of the shopping trolley into the drag plate groove.

4. The large capacity cart escalator of claim 3 wherein, The side of the movable drag hook away from the drag plate groove is provided as a circular arc surface.

5. The large capacity cart escalator of claim 1 wherein, The drive assembly further includes a main drive sprocket provided on the drive spindle, and the output end of the drive host is provided with an output wheel, which is driven by a chain.

6. A large capacity shopping cart escalator according to claim 1 or 2 or 5 wherein, A gate and a door opening assembly that automatically opens and closes the gate are provided on both sides of the end of the truss.

7. A large capacity cart escalator according to claim 6, wherein, The door opening assembly includes: A door opening drive turntable uniformly distributed with a plurality of turntable levers in the circumferential direction; A rotating block slidingly provided on the gate rotating shaft, the bottom of the rotating block is provided with a block spring that pushes it to move in the vertical direction; the sidewall of the rotating block is provided with a protruding rod, an upper circular arc groove, and a lower circular arc groove; the top of the rotating block is provided with a boss; A limiting assembly including a limiting rod and a limiting compression spring, the end of the limiting rod abuts against the upper circular arc groove or the lower circular arc groove when pushed by the limiting compression spring; an upper slope and a lower slope are respectively provided on the top of the limiting rod close to the rotating block; A triggering assembly that pushes the rotating block to move downward when the shopping trolley approaches or passes through the gate.

8. The large capacity cart escalator of claim 6 wherein, The triggering assembly includes a triggering pressure plate, a triggering pressure rod, and a pressure plate reset torsional spring that allows the triggering pressure plate to reset; one end of the triggering pressure rod is fixedly connected to the triggering pressure plate, and the other end of the triggering pressure rod is provided with a pressure rod waist hole in which the gate rotating shaft is arranged.

9. The large capacity cart escalator of claim 1 wherein, A transmission small sprocket is provided on the drive spindle, the door opening drive turntable is fixedly provided on a door opening drive shaft, the door opening drive shaft is provided with a door opening small sprocket, and the door opening small sprocket is driven by a chain.

10. The large capacity cart escalator of claim 1 wherein, A rotating shaft sliding groove is provided on the sidewall of the gate rotating shaft in the axial direction, and a boss sliding block is provided on the rotating block to cooperate with the rotating shaft sliding groove.

Images