Safety apparatus for lifting machine platform and three-dimensional goods shelf

Abstract

A safety apparatus for a lifting machine platform and a three-dimensional goods shelf, said apparatus comprising a blocking assembly (100) that is located at the connection point between a lifting machine platform (10) and a three-dimensional goods shelf (30), a guide assembly (200), and a rotary bracket (300). The blocking assembly is rotatably arranged and is provided with a small blocking end (100a) and a large counterweight end (100b) which switch between high and low positions by means of rotation. When no external force is applied to the blocking assembly, under the action of gravity provided by the large counterweight end, the small blocking end is located at the high position in an upward orientation, so as to create blockage to a shuttle vehicle (40) in a direction of movement of the shuttle vehicle. The guide assembly and the blocking assembly are arranged to fit by means of offset collision in a direction of lifting, and in an offset collision state, the guide assembly collides with the large counterweight end, such that the blocking assembly rotates to switch the high and low positions of the small blocking end and the large counterweight end, and the small blocking end rotates to the low position to clear blockage to the shuttle vehicle. The described safety apparatus can effectively prevent losses such as falling of the shuttle vehicle caused by various uncertain factors in smart warehousing, thus reducing the fault rate and improving the working efficiency of three-dimensional warehousing.

Description

Safety device for lift platform and stereoscopic shelf TECHNICAL FIELD

[0001] The present application belongs to the technical field of safety protection of stereoscopic storage, and particularly relates to a safety device for a lift platform and a stereoscopic shelf. BACKGROUND

[0002] The four-way shuttle vehicle in the stereoscopic storage is generally used in combination with the lift platform, and therefore a safety protection device needs to be arranged at the connection between the shelf and the lift platform to prevent the shuttle vehicle from falling from the lift platform or the shelf track due to vehicle out of control or human operation error when the lift platform is not ready (has not reached the target layer), thereby causing unnecessary loss and safety hazards. In the prior art, a rudder or an electromagnetic switch is usually used to drive a blocking block to achieve safety protection. However, this kind of electrical control mechanism is prone to failure due to electromagnetic interference, communication delay and other reasons, and cannot reliably prevent the shuttle vehicle from falling, which affects the working efficiency of the stereoscopic storage. TECHNICAL PROBLEM

[0003] In order to overcome the deficiencies in the prior art, the present application provides a safety device for a lift platform and a stereoscopic shelf, which can effectively prevent the shuttle vehicle from falling due to various uncertain factors in intelligent storage, has rapid response, reduces the failure rate, and improves the working efficiency of the stereoscopic storage. TECHNICAL SOLUTION

[0004] To achieve the above-mentioned purpose, the safety device for a lift platform and a stereoscopic shelf of the present application comprises a blocking assembly, a guide assembly and a rotary bracket located at the connection between the lift platform and the stereoscopic shelf.

[0005] The blocking assembly is rotationally arranged and has a small blocking end and a large counterweight end for switching between high and low positions by rotation. In the state without external force, the small blocking end is in an upward posture at the high position by the gravity provided by the large counterweight end to form a block to the shuttle vehicle in the vehicle movement direction.

[0006] The guide assembly and the blocking assembly are arranged in offset collision in the lifting direction. In the offset collision state, the guide assembly collides with the large counterweight end to switch the high and low positions of the small blocking end and the large counterweight end of the blocking assembly, and the small blocking end rotates to the low position to remove the block to the shuttle vehicle.

[0007] The rotary bracket is arranged on the side of the guide assembly. In the static state of the blocking assembly with the center of gravity of the small blocking end at the lower position and the large counterweight end at the upper position, when the lift platform passes through the corresponding layer of the stereoscopic shelf again, the rotary bracket offsets and collides with the large counterweight end to push the blocking assembly from the temporary block failure state to the block effective state.

[0008] Further, the blocking components are distributed on the sides of the lifting platform and the cross support of the stereoscopic shelf, the blocking components on the sides of the lifting platform are used to block and protect the shuttles on the lifting platform, and the blocking components on the sides of the cross support of the stereoscopic shelf are used to block and protect the shuttles in the stereoscopic shelf.

[0009] The guiding components are distributed on the sides of the lifting platform and the cross support of the stereoscopic shelf, the guiding components on the sides of the lifting platform correspond to the blocking components on the sides of the cross support of the stereoscopic shelf, and the guiding components on the sides of the cross support of the stereoscopic shelf correspond to the blocking components on the sides of the lifting platform.

[0010] Further, the blocking component comprises a fixed seat, a rotating body, a collision wheel and a counterweight, the fixed seat is installed on the lifting platform or the cross support, the rotating body is installed on the fixed seat through a rolling bearing, the rotating body has a small blocking end and a large counterweight end, the collision wheel and the counterweight are arranged at the large counterweight end of the rotating body, and the blocking component is vertically installed on the lifting platform or the cross support, under the action of the gravity of the counterweight, the small blocking end of the rotating body is in a vertical upward state.

[0011] The guiding component comprises a guiding block and a fixed plate, the guiding block is installed on the lifting platform or the cross support through the fixed plate, the outer contour surface of the guiding block is in collision contact with the collision wheel when the lifting platform vertically ascends and descends, and the structural contour of the outer contour surface of the guiding block matches the collision contact track.

[0012] Further, when the lifting platform moves between the shelf layers of the stereoscopic shelf or stops at a non-target position, the small blocking end of the blocking component on the lifting platform is higher than a first shuttle track on the lifting platform, so as to form blocking protection for the shuttles on the lifting platform, and when the lifting platform moves in the shelf layer of the stereoscopic shelf and is not in place, the small blocking end of the blocking component on the cross support is higher than a second shuttle track on the stereoscopic shelf, so as to form blocking protection for the shuttles on the stereoscopic shelf.

[0013] Further, a pendulum damping component corresponding to the blocking component is arranged between the fixed seat and the rotating body of the same blocking component, the pendulum damping component contacts the side surface of the rotating body to damp the pendulum rotating movement of the rotating body.

[0014] Further, the contact end of the pendulum damping component is a sliding contact head, and the sliding contact head is in sliding contact with the side surface of the rotating body.

[0015] Further, the contact end of the pendulum damping component is a rolling contact, which is in rolling contact with the side surface of the rotating body.

[0016] Further, the pendulum damping component is a press-in ball plunger installed on a fixed seat to face the rotating body, and the steel ball of the press-in ball plunger is matched with a hole position arranged on the side surface of the rotating body.

[0017] Further, the rotary bracket and the blocking assembly are one-to-one corresponding. Advantages

[0018] The present application blocks the shuttle vehicle through the blocking assembly, and sets the corresponding guiding assembly to collide and remove the blockage, which can effectively avoid the loss of the shuttle vehicle falling caused by various uncertain factors in the intelligent warehouse, uses the mechanical mechanism principle, does not need electrical control, has low cost, fast response, reduces the failure rate, and improves the working efficiency of the stereoscopic warehouse. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0020] Fig. 2 is a schematic diagram of the overall structure of the present application;

[0021] Fig. 3 is a schematic diagram of the structure of the blocking assembly;

[0022] Fig. 4 is a schematic diagram of the structure of the guiding assembly;

[0023] Fig. 5 is a schematic diagram of the structure of the press-in ball plunger on the blocking assembly;

[0024] Fig. 6 is a schematic diagram of the front view structure of the elevator platform;

[0025] Fig. 7 is a schematic diagram of the side view structure of the stereoscopic shelf;

[0026] Fig. 8 is a schematic diagram of the hidden cross brace;

[0027] Fig. 9 is a schematic diagram of the hidden cross brace;

[0028] Fig. 10 is a schematic diagram of the blocking assembly in the opposite direction and in the static state;

[0029] Fig. 11 is a schematic diagram of the structure of the rotary bracket contacting and resetting the blocking assembly;

[0030] Fig. 12 is a schematic diagram of the structure of the blocking assembly recovering to the normal state. Embodiment of the present application

[0031] The present application will be further described below with reference to the accompanying drawings.

[0032] As shown in the drawings 1, drawings 2, drawings 6, a kind of safety device for lift platform and stereoscopic goods shelves, including the blocking component 100 in the connection of lift platform 10 and stereoscopic goods shelves 30, guide component 200 and swivel bracket 300;The blocking component 100 rotation is arranged, it has by rotating high, low position switching small blocking end 100a with large counterweight end 100b, the blocking component 100 under the state of no external force exertion, the small blocking end 100a is in the high position of upward posture by the gravity action provided by the large counterweight end 100b to form the blocking of shuttle vehicle 40 in the direction of vehicle movement;As shown in drawings 7 and drawings 8, the guide component 200 and blocking component 100 are arranged in biasing collision in lifting direction, and in the state of biasing collision, the guide component 200 collides the large counterweight end 100b, so that the blocking component 100 rotates and switches the high, low position of small blocking end 100a and large counterweight end 100b, and the small blocking end 100a rotates to low position to remove the blocking of shuttle vehicle 40.More specifically, the blocking component 100 is distributed on the side of the lift platform 10 and the side of the cross brace 20 of the stereoscopic goods shelves 30, and the blocking component 100 on the side of the lift platform 10 is used to block and protect the shuttle vehicle 40 on the lift platform 10, and the blocking component 100 on the side of the cross brace 20 of the stereoscopic goods shelves 30 is used to block and protect the shuttle vehicle 40 in the stereoscopic goods shelves 30;The guide component 200 is distributed on the side of the lift platform 10 and the side of the cross brace 20 of the stereoscopic goods shelves 30, and the guide component 200 on the side of the lift platform 10 corresponds to the blocking component 100 on the side of the cross brace 20 of the stereoscopic goods shelves 30, and the guide component 200 on the side of the cross brace 20 of the stereoscopic goods shelves 30 corresponds to the blocking component 100 on the side of the lift platform 10.The blocking component 100 of the application blocks the shuttle vehicle 40, and the corresponding guide component 200 is arranged to collide and remove the blocking, which can effectively avoid the loss of shuttle vehicle falling caused by various uncertain factors in intelligent warehousing, uses mechanical mechanism principle, without electrical control, low cost, fast response, reduces failure rate, improves the work efficiency of stereoscopic warehousing.

[0033] In order to solve this problem, as shown in FIG. 10, FIG. 11 and FIG. 12, the rotating bracket 300 is arranged on the side of the guide assembly 200, and the rotating bracket 300 corresponds to the blocking assembly 100. When the lifting platform 10 passes through the corresponding layer of the stereoscopic shelf 30 again in the static state of the center of gravity of the blocking assembly 100, the small blocking end 100a is at the lower end, and the large counterweight end 100b is at the upper end, the rotating bracket 300 offsets and collides with the large counterweight end 100b to push the blocking assembly 100 from the temporary blocking failure state to the blocking effective state, that is, to push the blocking assembly 100 to the normal state of the center of gravity at the lower end.

[0034] As shown in FIG. 3, FIG. 4, FIG. 5 and FIG. 6, the blocking assembly 100 includes a fixed seat 110, a rotating body 120, a collision wheel 130 and a counterweight 140. The fixed seat 110 is installed on the lifting platform 10 or the cross support 20, the rotating body 120 is installed on the fixed seat 110 through a rolling bearing, the rotating body 120 has the small blocking end 100a and the large counterweight end 100b, the collision wheel 130 and the counterweight 140 are arranged at the large counterweight end 100b of the rotating body 120. When the blocking assembly 100 is vertically installed on the lifting platform 10 or the cross support 20, the small blocking end 100a of the rotating body 120 is in a vertical upward state under the action of the gravity of the counterweight 140. The size of the counterweight 140 is adjusted according to the design and selection of the collision wheel 130, so as to ensure the static state of the rotating body 120. The guide assembly 200 includes a guide block 210 and a fixed plate 220. The guide block 210 is installed on the lifting platform 10 or the cross support 20 through the fixed plate 220. The outer contour surface of the guide block 210 is in collision contact with the collision wheel 130 when the lifting platform 10 vertically ascends or descends, and the structure contour of the outer contour surface of the guide block 210 matches the collision contact track, so as to ensure that the collision contact is more stable and smooth.

[0035] As shown in FIG. 6 and FIG. 7, when the lifting platform 10 moves between the layers of the stereoscopic shelf 30 or stops at a non-target position, the small blocking end 100a of the blocking assembly 100 on the lifting platform 10 is higher than the first shuttle vehicle track 11 on the lifting platform 10, so as to form blocking protection for the shuttle vehicle 40 on the lifting platform 10. When the lifting platform 10 moves on the layer of the stereoscopic shelf 30 and is not in place, the small blocking end 100a of the blocking assembly 100 on the cross support 20 is higher than the second shuttle vehicle track 21 on the stereoscopic shelf 30, so as to form blocking protection for the shuttle vehicle 40 on the stereoscopic shelf 30.

[0036] As shown in FIG. 8, when the elevator platform 10 moves downward to the designated layer, the guide assembly 200 on the side of the elevator platform 10 collides with the impact wheel 130 of the blocking assembly 100 on the cross support 20, and the guide assembly 200 on the side of the cross support 20 collides with the impact wheel 130 of the blocking assembly 100 on the elevator platform 10. Under the action of the guide assembly 200, the blocking assembly 100 rotates by a corresponding angle, and all parts of the blocking assembly 100 are lower than the height of the shuttle rail, so that the shuttle 40 can pass normally.

[0037] As shown in FIG. 9, when the elevator platform 10 moves upward to the designated layer, the guide assembly 200 on the side of the elevator platform 10 collides with the impact wheel 130 of the blocking assembly 100 on the cross support 20, and the guide assembly 200 on the side of the cross support 20 collides with the impact wheel 130 of the blocking assembly 100 on the elevator platform 10. Under the action of the guide assembly 200, the blocking assembly 100 rotates by a corresponding angle, and all parts of the blocking assembly 100 are lower than the height of the shuttle rail, so that the shuttle 40 can pass normally.

[0038] Considering the rolling bearing in the blocking assembly 100, when the elevator platform 10 leaves or passes through the shelf layer, that is, the guide assembly 200 and the blocking assembly 100 are separated from each other, the rotating body 120 may perform a pendulum rotation motion due to inertia, which affects the collision and contact between the guide assembly 200 and the blocking assembly 100, and causes the safety blocking function to be temporarily invalid. In order to solve the above problem, as shown in FIG. 10, the present application comprises a pendulum damping part 111 corresponding to the blocking assembly 100, which is located between the fixed seat 110 and the rotating body 120 belonging to the same blocking assembly 100. The pendulum damping part 111 contacts the side of the rotating body 120 to damp the pendulum rotation motion of the rotating body 120, thereby shortening the time for the blocking assembly 100 to return to the static state.

[0039] As shown in FIG. 4 and FIG. 10, the pendulum damping part 111 of the present application has the following two structural embodiments:

[0040] Embodiment one: the contact end of the pendulum damping part 111 is a sliding contact, which is in sliding contact with the side of the rotating body 120.

[0041] Embodiment two: the contact end of the pendulum damping part 111 is a rolling contact, which is in rolling contact with the side of the rotating body 120. Based on embodiment two, the pendulum damping part 111 is a press-in ball plunger installed on the fixed seat 110 to face the rotating body 120, and the steel ball of the press-in ball plunger is matched with the hole position provided on the side of the rotating body.

[0042] The advantages of the present application are as follows:

[0043] 1) The safety device can effectively avoid unnecessary losses such as shuttle car falling caused by various uncertain factors in intelligent storage;

[0044] 2) The safety device has a convenient and reliable structure, is easy to install, and does not affect the installation and use of other matching equipment;

[0045] 3) The safety device can be configured according to different project requirements, and the elevator platform and the stereoscopic shelf layer do not affect each other;

[0046] 4) The safety device uses mechanical mechanism principle, does not need electrical control, has low cost, responds quickly, does not affect the normal work of the stereoscopic warehouse, and can improve work efficiency.

[0047] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A safety device for hoist platforms and automated storage and retrieval systems, characterized in that: The blocking assembly (100), the guide assembly (200) and the rotating bracket (300) are located at the connection between the lifting platform (10) and the stereoscopic shelf (30); The blocking assembly (100) is rotationally arranged and has a small blocking end (100a) and a large counterweight end (100b) for switching between high and low positions by rotation; in the state without external force, the small blocking end (100a) is in the high position in the upward posture by the gravity provided by the large counterweight end (100b) to form a block to the shuttle vehicle (40) in the moving direction of the shuttle vehicle; The guide assembly (200) is arranged in biasing collision with the blocking assembly (100) in the lifting direction, and in the state of biasing collision, the guide assembly (200) collides with the large counterweight end (100b) to switch the high and low positions of the small blocking end (100a) and the large counterweight end (100b) of the blocking assembly (100), and the small blocking end (100a) rotates to the low position to remove the block to the shuttle vehicle (40); The rotating bracket (300) is arranged on the side of the guide assembly (200); in the stationary state of the blocking assembly (100) with the center of gravity of the small blocking end (100a) below and the large counterweight end (100b) above, when the lifting platform (10) passes through the corresponding layer of the stereoscopic shelf (30) again, the rotating bracket (300) biases and collides with the large counterweight end (100b) to push the blocking assembly (100) from the temporary blocking failure state to the blocking effective state, that is, to push the blocking assembly (100) to the normal state with the center of gravity below; The blocking assembly (100) is distributed on the side of the lifting platform (10) and the side of the cross brace (20) of the stereoscopic shelf (30); the blocking assembly (100) on the side of the lifting platform (10) is used to block and protect the shuttle vehicle (40) on the lifting platform (10), and the blocking assembly (100) on the side of the cross brace (20) of the stereoscopic shelf (30) is used to block and protect the shuttle vehicle (40) in the stereoscopic shelf (30); The guide assembly (200) is distributed on the side of the lifting platform (10) and the side of the cross brace (20) of the stereoscopic shelf (30); the guide assembly (200) on the side of the lifting platform (10) corresponds to the blocking assembly (100) on the side of the cross brace (20) of the stereoscopic shelf (30), and the guide assembly (200) on the side of the cross brace (20) of the stereoscopic shelf (30) corresponds to the blocking assembly (100) on the side of the lifting platform (10); The rotating bracket (300) is arranged on the side of the lifting platform (10) and corresponds to the blocking assembly (100) of the stereoscopic shelf (30).

2. A safety device for use with an elevator platform and a vertical goods rack as defined in claim 1, wherein: The blocking assembly (100) comprises a fixed seat (110), a rotating body (120), a collision wheel (130) and a counterweight (140); the fixed seat (110) is installed on the lifting platform (10) or the cross brace (20), the rotating body (120) is installed on the fixed seat (110) through a rolling bearing, the rotating body (120) has a small blocking end (100a) and a large counterweight end (100b), the collision wheel (130) and the counterweight (140) are arranged at the large counterweight end (100b) of the rotating body (120); when the blocking assembly (100) is vertically installed on the lifting platform (10) or the cross brace (20), under the action of the gravity of the counterweight (140), the small blocking end (100a) of the rotating body (120) is in a vertical upward state. The guide assembly (200) comprises a guide block (210) and a fixed plate (220), the guide block (210) is installed on the lifting platform (10) or the cross brace (20) through the fixed plate (220), the outer contour surface of the guide block (210) is in collision contact with the collision wheel (130) when the lifting platform (10) vertically lifts, and the structural contour of the outer contour surface of the guide block (210) matches the collision contact track.

3. A safety device for use with an elevated platform and a vertical storage rack as defined in claim 2, wherein: When the lifting platform (10) moves between the layers of the stereoscopic shelf (30) or stops at a non-target position, the small blocking end (100a) of the blocking assembly (100) on the lifting platform (10) is higher than the first shuttle vehicle track (11) on the lifting platform (10), so as to form blocking protection for the shuttle vehicle (40) on the lifting platform (10); when the lifting platform (10) moves between the layers of the stereoscopic shelf (30) and is not in place, the small blocking end (100a) of the blocking assembly (100) on the cross brace (20) is higher than the second shuttle vehicle track (21) on the stereoscopic shelf (30), so as to form blocking protection for the shuttle vehicle (40) on the stereoscopic shelf (30).

4. A safety device for use with an elevator platform and a vertical goods rack according to claim 2, wherein: The pendulum damping component (111) corresponding to the blocking assembly (100) is arranged between the fixed seat (110) and the rotating body (120) of the same blocking assembly (100), the pendulum damping component (111) contacts the side surface of the rotating body (120) to damp the pendulum rotation of the rotating body (120).

5. A safety device for use with an elevator platform and a vertical goods rack according to claim 4, wherein: The contact end of the pendulum damping component (111) is a sliding contact head, and the sliding contact head is in sliding contact with the side surface of the rotating body (120).

6. A safety device for use with an elevator platform and a vertical goods rack as defined in claim 4, wherein: The contact end of the pendulum damping component (111) is a rolling contact head, and the rolling contact head is in rolling contact with the side surface of the rotating body (120).

7. A safety device for use with an elevator platform and a vertical goods rack according to claim 6, wherein: The pendulum damping component (111) is a press-in ball plunger installed on the fixed seat (110) to face the rotating body (120), and the steel ball of the press-in ball plunger matches the hole position arranged on the side surface of the rotating body.

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