Unpowered chain conveyor and tray conveying device

Abstract

The utility model provides an unpowered chain conveyor and a tray conveying device. The unpowered chain conveyor comprises a boundary beam, a chain steering head, a chain and a pedal. In any side beam, chain steering heads are arranged at the two ends, in the second horizontal direction, of the side beam respectively, chain wheels are rotationally arranged on the chain steering heads, and the two chain wheels are in transmission connection through a chain; the tray is supported by the surface of the chain to prevent the tray from tipping over, so that the tray stably passes through the two fireproof subareas; the pedals are arranged between the two adjacent edge beams; the pedal is convenient for a worker to tread to mount and debug other equipment or cross a fire-fighting zone; the tray conveying device comprises an unpowered chain conveyor, a roller shutter door, an out-wall conveyor and an in-wall conveyor, the roller shutter door is installed on one side face of the wall, the unpowered chain conveyor is arranged below the roller shutter door, and the out-wall conveyor and the in-wall conveyor are arranged on the two sides of the roller shutter door respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of warehousing logistics, in particular to a non-powered chain conveyor and a pallet conveying device. Background Art

[0002] During the design and construction of factories and warehouses, the requirements of national fire protection codes must be strictly adhered to. A factory building or warehouse is divided into different fire protection zones by walls, and door openings for the passage of personnel and handling equipment are reserved on the walls of each zone. Fireproof rolling shutter doors need to be installed at these door opening positions. The fireproof rolling shutter door is applied to the fire separation area of industrial and civil buildings. When a fire breaks out, it should immediately act and fall to the ground to prevent the spread of smoke and fire, so as to avoid more serious disasters and ensure the safety of life and property. It is an indispensable fire protection facility in modern buildings.

[0003] In an automated stereoscopic warehouse, there will also be a situation where an automated controlled conveyor transports pallets through different fire protection zones and fireproof rolling shutter doors and finally stores them in the stereoscopic warehouse.

[0004] Currently, in the non-powered roller conveyor under a double-curtain and double-rail fireproof rolling shutter door, the rollers rotate freely. When on-site installation personnel step on the rollers, it is easy to cause a falling accident, with serious potential safety hazards. Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the utility model provides a non-powered chain conveyor and a pallet conveying device, which optimize the structure of the non-powered conveyor. Using a chain to convey pallets can not only ensure the stability of the pallets but also reserve enough space to install pedals, facilitating the staff to step on the pedals to install or debug the equipment and cross the fire protection zone, improving safety and convenience. The technical solution adopted by the utility model is as follows:

[0006] A non-powered chain conveyor for conveying pallets, comprising a plurality of side beams, a plurality of chain turning heads, a plurality of chains, and a plurality of pedals;

[0007] The plurality of side beams are arranged at intervals along a first horizontal direction;

[0008] In any one of the side beams, chain turning heads are respectively arranged at both ends of the side beam along a second horizontal direction, sprockets are rotatably arranged on the chain turning heads, and the two sprockets are connected by a chain in a transmission manner;

[0009] The pedals are arranged between two adjacent side beams, and the height of the pedals is lower than the height of the chains;

[0010] Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

[0011] Further, tray guiding frames are respectively arranged on two side beams that are farthest apart along the first horizontal direction;

[0012] The height of the tray guiding frame is higher than the height of the chain.

[0013] Further, along the second horizontal direction, both ends of the tray guiding frame are bent so that the distance between the two tray guiding frames is narrow in the middle and wide at both ends.

[0014] Further, the top surface of the pedal is provided with patterns.

[0015] Further, it further includes legs. A plurality of the side beams are respectively arranged at the top of the legs, and a plurality of fixing bolts are arranged at the bottom of the legs.

[0016] A tray conveying device for the transitional transportation of trays at the wall opening of a wall, including a non-powered chain conveyor, further including a rolling shutter door, an external conveyor and an internal conveyor. The rolling shutter door is installed on one side of the wall, the non-powered chain conveyor is arranged below the rolling shutter door, and the external conveyor and the internal conveyor are respectively arranged on both sides of the rolling shutter door.

[0017] Advantages of the present utility model:

[0018] When the tray walks on the non-powered chain conveyor, the chain rotates following it, and the surface of the chain supports the tray to prevent the tray from tipping over, so as to facilitate the tray to smoothly cross two fire prevention zones;

[0019] The space between adjacent two chains is sufficient to install pedals, which is convenient for the staff to step on, install and debug other equipment, or cross the fire prevention zone, which is safe and convenient;

[0020] Two tray guiding frames realize the centering and guiding of the tray, prevent jamming caused by the skewing of the tray, so as to facilitate the tray to smoothly cross two fire prevention zones. Description of the drawings

[0021] Figure 1 It is the front view of the non-powered chain conveyor.

[0022] Figure 2 It is the side view of the non-powered chain conveyor.

[0023] Figure 3 It is the top view of the non-powered chain conveyor.

[0024] Figure 4 It is the structural schematic diagram of the tray conveying device.

[0025] In the figure: 10 - unpowered chain conveyor, 20 - pallet, 30 - wall, 40 - rolling shutter door, 50 - out-of-wall conveyor, 60 - in-wall conveyor, 110 - side beam, 120 - chain turning head, 121 - sprocket, 130 - chain, 140 - pedal, 150 - pallet guide frame, 160 - leg, 170 - fixing bolt. Detailed implementation manner

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] Please refer to the attached Figures 1-3 , the present utility model first provides an unpowered chain conveyor 10 for conveying pallets 20, including a plurality of side beams 110, a plurality of chain turning heads 120, a plurality of chains 130 and a plurality of pedals 140; the plurality of side beams 110 are arranged at intervals along a first horizontal direction; in any one of the side beams 110, chain turning heads 120 are respectively arranged at both ends of the side beam 110 along a second horizontal direction, sprockets 121 are rotatably arranged on the chain turning heads 120, and the two sprockets 121 are drivingly connected by a chain 130; a pedal 140 is arranged between two adjacent side beams 110, and the height of the pedal 140 is lower than the height of the chain 130; wherein, the first horizontal direction is perpendicular to the second horizontal direction.

[0028] The first horizontal direction and the second horizontal direction are as shown in the attached Figure 3 figure. Specifically, when the pallet 20 is transported from one side of the unpowered chain conveyor 10 to the other side along the second horizontal direction, the bottom of the pallet 20 contacts the top of the chain 130 and moves along with the movement of the pallet 20, driving the two sprockets 121 to rotate. Since the height of the top surface of the chain 130 is higher than the plane where the pedal 140 is located, the pallet 20 does not contact the pedal 140 during the movement, avoiding affecting the transportation speed of the pallet 20.

[0029] Arranging the pedal 140 between two adjacent side beams 110 neither affects the transportation of the pallet 20 nor increases the overall width and volume of the conveyor. And compared with rollers, the width of the chain 130 is narrower. Therefore, under the condition of the same total width, the width of the pedal 140 is increased to ensure the safety of the staff when stepping on it, facilitating the staff to install and debug other equipment or cross the fire compartment.

[0030] In a specific embodiment, a sprocket 121 is installed on each chain turning head 120 through a bearing, and the heights of the two sprockets 121 are equal. When the chain 130 is installed between the two sprockets 121, the upper and lower sides of the chain are in a horizontal state, which can ensure good contact between the chain 130 and the tray 20 and improve the transmission efficiency.

[0031] Furthermore, a tensioning wheel may be installed on the side beam 110 , and when the chain is loose, the chain 130 may be tensioned by adjusting the position of the tensioning wheel to ensure good contact between the chain 130 and the pallet 20 .

[0032] In addition, the unpowered chain conveyor does not require the layout of wires, which is conducive to reducing production costs, shortening on-site construction time, and improving construction efficiency. Specifically, the powered roller conveyor itself is driven by a motor, that is, the cables for the motor need to be laid on site, and the fire shutter door must fall to the ground in the event of a fire to block smoke and fire, which makes it difficult to lay the cables that power the drive motor; the commonly used solution is to pre-bury wire pipes in the ground or temporarily dig grooves for routing in the ground. It can be seen that arranging a powered conveyor in a fire shutter door is time-consuming and labor-intensive, and the procurement cost of motors and cables is also high. It is difficult to inspect and maintain the cables in a pre-buried manner; therefore, the unpowered chain conveyor 10 omits the wiring layout to achieve the purpose of increasing efficiency and reducing costs.

[0033] In this application, please refer to the attached Figure 3 In order to realize the movement guidance of the pallet 20 on the unpowered chain conveyor 10, pallet guide frames 150 are respectively provided on the two side beams 110 that are farthest apart along the first horizontal direction; the height of the pallet guide frames 150 is higher than the height of the chain 130; the two pallet guide frames 150 realize the centering guidance of the pallet 20 to prevent the pallet 20 from getting stuck due to the skew, so that the pallet can smoothly pass through the two fire partitions.

[0034] In a specific embodiment, the side bolts of the side beam 110 are connected to the L-shaped bracket, and the pallet guide frame 150 is bolted to the L-shaped bracket, so that there is a gap between the pallet guide frame 150 and the nearest chain 130, thereby preventing the pallet guide frame 150 from occupying the space above the chain 130 and preventing the pallet 20 from being stuck between the pallet guide frame 150 and the chain 130.

[0035] In one embodiment, please refer to the attached Figure 3 In order to improve the guiding performance of the tray guide frame 150, the two ends of the tray guide frame 150 are bent along the second horizontal direction so that the distance between the two tray guide frames 150 is narrow in the middle and wide at both ends.

[0036] In one embodiment, please refer to the attached Figure 3, in order to increase the anti-slip effect of the pedal 140 and further improve safety, patterns are arranged on the top surface of the pedal 140.

[0037] In a specific embodiment, the pedal 140 is made of steel plate, has high strength and hardness, and is safe and reliable to use.

[0038] In addition, please refer to the attached Figure 1 and Figure 2 , this application further includes legs 160. A plurality of the side beams 110 are respectively arranged on the top of the legs 160, and a plurality of fixing bolts 170 are arranged at the bottom of the legs 160; while using the legs 160 to support the side beams 110, a reference plane is provided, the levelness between a plurality of chains 130 is improved, and the legs 160 are fixed to the factory floor by using the fixing bolts 170, thereby improving the stability of the entire non-powered chain conveyor 10.

[0039] Please refer to the attached Figure 4 , the present utility model further proposes a pallet conveying device for the transitional transportation of the pallet 20 at the door opening of the wall 30, including the non-powered chain conveyor 10 described above, and further including a rolling shutter door 40, an external conveyor 50 and an internal conveyor 60. The rolling shutter door 40 is installed on one side surface of the wall 30, the non-powered chain conveyor 10 is arranged below the rolling shutter door 40, and the external conveyor 50 and the internal conveyor 60 are respectively arranged on both sides of the rolling shutter door 40.

[0040] In a specific embodiment, the number of side beams 110 in the non-powered chain conveyor 10 is 3, the number of chains 130 is also 3 correspondingly, and the number of corresponding pedals 140 is 2; the rolling shutter door 40 is a double-curtain and double-track fireproof rolling shutter door, and the non-powered chain conveyor 10 is inside the double-curtain and double-track fireproof rolling shutter door; the external conveyor 50 and the internal conveyor 60 are respectively motor-driven roller conveyors; when there is a pallet 20 that needs to pass through two fire compartments, the pallet 20 will pass through the non-powered chain conveyor 10 inside the rolling shutter door 40 under the driving force of the motor of the external conveyor 50, the chains 130 rotate and support the pallet 20 at the same time to prevent the pallet 20 from tipping over; when the pallet 20 contacts the rollers of the internal conveyor 60, the pallet 20 will continue to move forward under the driving force of the motor of the internal conveyor 60, thereby realizing the smooth crossing of the fire compartment by the pallet 20.

[0041] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A non-powered chain conveyor (10) for conveying pallets (20), characterized in that, It includes a number of side beams (110), a number of chain turning heads (120), a number of chains (130) and a number of pedals (140); A number of the side beams (110) are arranged at intervals along a first horizontal direction; In any one of the side beams (110), chain turning heads (120) are respectively arranged at both ends of the side beam (110) along a second horizontal direction. A sprocket (121) is rotatably arranged on the chain turning head (120). The two sprockets (121) are connected by a chain (130) in a transmission manner; The pedal (140) is arranged between two adjacent side beams (110), and the height of the pedal (140) is lower than the height of the chain (130); Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

2. The unpowered chain conveyor according to claim 1, characterized in that: Pallet guiding frames (150) are respectively arranged on the two side beams (110) that are farthest apart along the first horizontal direction; The height of the pallet guiding frame (150) is higher than the height of the chain (130).

3. The non-powered chain conveyor according to claim 2, wherein: Along the second horizontal direction, both ends of the pallet guiding frame (150) are bent so that the distance between the two pallet guiding frames (150) is narrow in the middle and wide at both ends.

4. The unpowered chain conveyor according to claim 1, characterized in that: The top surface of the pedal (140) is provided with patterns.

5. The power-free chain conveyor according to claim 1, wherein: It further includes legs (160). A number of the side beams (110) are respectively arranged at the tops of the legs (160), and a number of fixing bolts (170) are arranged at the bottoms of the legs (160).

6. A pallet conveying device for the transitional transportation of a pallet (20) at the door opening of a wall body (30), characterized in that: It includes the non-powered chain conveyor (10) according to any one of claims 1-5, and further includes a rolling shutter door (40), an outdoor conveyor (50) and an indoor conveyor (60). The rolling shutter door (40) is installed on one side of a wall body (30). The non-powered chain conveyor (10) is arranged below the rolling shutter door (40). The outdoor conveyor (50) and the indoor conveyor (60) are respectively arranged on both sides of the rolling shutter door (40).

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