Anti-falling structure for stacking machine

Abstract

The utility model belongs to the technical field of stacker manufacturing, and particularly relates to an anti-falling structure for a stacker. According to the anti-falling structure for the stacking machine, the anti-falling pull rope, the inclined track plate unit, the two-section type hinged frame body unit and the sliding clamping block unit are arranged, so that the anti-falling structure for the stacking machine is located between the platform track and the lifting platform; during normal operation, the stacking inhaul cable drives the lifting platform and the inclined track plate unit to move together, when the lifting platform suddenly falls, a flywheel clamps an anti-falling pull rope, a steel wire rope tightly pulls the two-section type hinged frame body unit, the sliding clamping block unit is stressed to be relatively separated from the inclined track plate unit, and the sliding clamping block unit tightly holds a platform track in the separation process. A clamping groove does not need to be formed in the vertical rod in advance, limiting can be conducted by movably holding the platform rail tightly through the sliding clamping block unit, the sliding rail is gradually held tightly through gravity, and the anti-falling mode is smoother and more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of stacker manufacturing, and particularly relates to an anti-falling structure for a stacker. Background Art

[0002] The single-column stacker is one of the main components in an automated stereoscopic warehouse and is dedicated to high-bay warehouses. The rack structure is a rectangular frame composed of 1 vertical column, an upper crossbeam, and a lower crossbeam. A lifting platform with pulleys is installed on the vertical column. The lifting platform is connected to the driving device on the crossbeam through a chain or steel wire rope and moves up and down along the vertical column. The stacker runs in the aisle between the shelves and is mainly used to carry unit goods loaded on pallets or in containers. It can also drive to the corresponding storage grid, and the personnel on the machine pick and select the goods for outbound according to the outbound requirements.

[0003] The anti-falling safety protection device for the load platform of a stacker is a protection mechanism of the stacker. In a heavy-load and low-speed stacker, due to sufficient space, a speed limiter can be installed to prevent falling. However, for a single-column and light-load high-speed stacker, the space is limited and it is in the form of a single column, so it is very troublesome to install a speed limiter. And the lifting of the load platform of a high-speed stacker is driven by a synchronous belt. In the case where the synchronous belt is not broken, using the form of overspeed locking will damage the synchronous belt. The main application situation of this mechanism is to prevent the load platform from falling after the synchronous belt breaks.

[0004] For example, a Chinese utility model patent with the patent publication number CN218561053U and the publication date of March 3, 2023 discloses an anti-falling component for a stacker. The structure includes a vertical frame and four square grooves opened on the inner surface of the vertical frame. Two motors are installed on the top of the outer surface of the vertical frame. The output shafts of the motors are all installed with winding shafts. Steel wire ropes are connected to the outer surfaces of the winding shafts. Blocks are installed at the ends of the steel wire ropes. A load platform is movably embedded in the inner surface of the vertical frame. Sliders are fixedly installed on both sides of the outer surface of the load platform. Two friction blocks are movably embedded in each slider.

[0005] The general structural principle of the anti-falling component for a stacker in this utility model patent is as follows: When in use, if the steel wire rope breaks accidentally, the block loses the upward pulling force, and the load platform falls downward along the inner surface of the vertical frame. The second spring pushes the friction block outward. When it descends to the position of the square groove, the friction block is stuck into the inside of the square groove under the action of the second spring and can stop.

[0006] However, in the actual use process of this anti-falling component for a stacker, there are at least the following deficiencies, that is, the technical problems to be solved by the present utility model.

[0007] The friction block needs to be stopped after being inserted into the square groove on the inner surface of the vertical frame. Square grooves need to be opened on the vertical frame in advance, resulting in poor practicability. Moreover, after the steel wire rope breaks, the load platform descends rapidly, causing the friction block to be easily broken after impact, affecting the anti-falling effect.

[0008] Therefore, in summary, there is an urgent need for a new anti-falling structure that causes less damage to the vertical frame and descends more smoothly. Summary of the Utility Model

[0009] The utility model provides an anti-falling structure for a stacker, which can make the following by setting an anti-falling pull rope, an inclined track plate unit, a two-section articulated frame body unit, and a sliding block unit: The anti-falling structure for the stacker is located between the platform track and the lifting platform. During normal operation, the stacking cable drives the lifting platform and the inclined track plate unit to move together. When the lifting platform suddenly falls, the flywheel clamps the anti-falling pull rope, the steel wire rope pulls tightly the two-section articulated frame body unit, and the sliding block unit is stressed and relatively separated from the inclined track plate unit. During the separation process of the sliding block unit, it tightly holds the platform track, so that the lifting platform stops falling. There is no need to open a card slot on the vertical rod in advance. The sliding block unit can be used to hold the platform track tightly through activities for limiting, and it gradually holds the sliding rail tightly by gravity, and the anti-falling form is more gentle and stable.

[0010] The technical solution adopted by the utility model to solve the above problems is: an anti-falling structure for a stacker, including an anti-falling pull rope arranged on the stacker frame body, an inclined track plate unit arranged on the lifting platform, a two-section articulated frame body unit inserted on the inclined track plate unit and connected to the anti-falling pull rope, and a sliding block unit articulated on the two-section articulated frame body unit and used for clamping the platform track after the stacking cable breaks.

[0011] A further preferred technical solution lies in that: the inclined track plate unit includes a vertical plate, a jack arranged on the vertical plate, and two inclined plates arranged on the vertical plate and close to the platform track.

[0012] A further preferred technical solution lies in that: the two-section articulated frame body unit includes an insertion plate inserted into the jack, an opening block arranged on the insertion plate and used for connecting the anti-falling pull rope, and two articulated plates with two ends respectively articulated to the opening block and the two sliding block units.

[0013] A further preferred technical solution lies in that: the sliding block unit includes an anti-falling block with the upper end articulated to the articulated plate and used for clamping the platform track, and a limiting groove arranged on the anti-falling block and used for inserting into the inclined plate.

[0014] A further preferred technical solution lies in that: the inclined track plate unit further includes two mounting blocks which are arranged on the vertical plate and are used for clamping the platform track.

[0015] A further preferred technical solution lies in that: the inclined track plate unit further includes a pulling-back spring which is arranged on the vertical plate and is used for connecting the bottom end of the anti-falling clamping block.

[0016] A further preferred technical solution lies in that: the sliding clamping block unit further includes a plurality of deceleration blocks which are arranged on the anti-falling clamping block and are used for clamping the platform track.

[0017] A further preferred technical solution lies in that: the two-section articulated frame unit further includes a convex ring arranged at the bottom end of the insertion plate, and the inclined track plate unit further includes an anti-disengagement plate which is arranged on the vertical plate and is used for clamping the convex ring.

[0018] A further preferred technical solution lies in that: the inclined track plate unit further includes an L-shaped baffle which is arranged on the vertical plate and is used for protecting the inclined plate.

[0019] A further preferred technical solution lies in that: the distance L between the two anti-falling clamping blocks is the width of the platform track. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the present utility model.

[0021] Figure 2 is an exploded view of the present utility model.

[0022] Figure 3 is a schematic structural view of the present utility model in an installed state.

[0023] Figure 4 is a schematic structural view of the present utility model when clamping the platform track.

[0024] Figure 5 is a schematic structural view of the present utility model on the side close to the lifting platform.

[0025] Figure 6 is a usage state diagram of the present utility model.

[0026] In the figure, the meanings of the various marks are as follows:

[0027] stacking machine frame a, lifting platform b, stacking cable c, platform track d;

[0028] anti-falling cable 1, inclined track plate unit 2, two-section articulated frame unit 3, sliding clamping block unit 4, flywheel 5;

[0029] Vertical plate 201, jack 202, inclined plate 203, mounting block 204, retraction spring 205, anti - detachment plate 206, L - shaped baffle 207, insertion plate 301, hole - opening block 302, hinge plate 303, convex ring 304, anti - falling clamping block 401, limiting groove 402, deceleration block 403. Specific embodiments

[0030] The following is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

[0031] As shown in the attached Figures 1-6 As shown in the figure, an anti - falling structure for a stacker includes an anti - falling pull rope 1 provided on the stacker frame a, an inclined track plate unit 2 provided on the lifting platform b, a two - section hinge frame unit 3 inserted on the inclined track plate unit 2 and connected to the anti - falling pull rope 1, and a sliding clamping block unit 4 hinged on the two - section hinge frame unit 3 and used to clamp the platform track d after the stacker cable c breaks.

[0032] In this embodiment, the anti - falling structure for the stacker is arranged between the lifting platform b and the platform track d. The stacker cable c drives the lifting platform b to slide up and down on the stacker frame a. The pulley of the lifting platform b is clamped in the platform track d, and the anti - falling structure for the stacker and the lifting platform b are lifted and lowered together.

[0033] In addition, the flywheel 5 is a commercially available product with a centrifugal device inside. The anti - falling pull rope 1 is connected to the flywheel 5 and is provided on the stacker frame a. At normal speed, the flywheel 5 can retract the anti - falling pull rope 1 to ensure that the anti - falling pull rope 1 is in a taut state and does not affect the joint lifting and lowering of the anti - falling structure for the stacker and the lifting platform b. When the stacker cable c breaks, the anti - falling pull rope 1 is quickly pulled by gravity, and the flywheel 5 clamps the anti - falling pull rope 1. The anti - falling structure for the stacker is restricted and stops, forcing the lifting platform b to stop. The anti - falling pull rope 1 is the load - bearing rope of the lifting platform b, so the anti - falling pull rope 1 is preferably a steel wire rope.

[0034] Furthermore, the inclined track plate unit 2 is used to connect with the lifting platform b and is placed on the side of the platform track d. The two - section hinge frame unit 3 is inserted into the inclined track plate unit 2, and the two - section hinge frame unit 3 is connected to the anti - falling pull rope 1, enabling the two - section hinge frame unit 3 to slide up and down relative to the inclined track plate unit 2.

[0035] Finally, one end of the sliding block unit 4 is hinged to the two-piece articulated frame unit 3, and the other end is inserted into the inclined track plate unit 2. When the anti-falling pull rope 1 is jammed, the two-piece articulated frame unit 3 is pulled by the anti-falling pull rope 1 and cannot descend, while the inclined track plate unit 2 continues to move downward with the lifting platform b. The sliding block unit 4 hinged to the two-piece articulated frame unit 3 starts to separate from the inclined track plate unit 2, and while the sliding block unit 4 moves upward relative to the inclined track plate unit 2, it moves inward and presses tightly, thereby clamping the platform track d and restricting the inclined track plate unit 2 from continuing to slide downward, and further preventing the lifting platform b from continuing to fall.

[0036] The inclined track plate unit 2 includes a vertical plate 201, a jack 202 provided on the vertical plate 201, and two inclined plates 203 provided on the vertical plate 201 and close to the platform track d.

[0037] In this embodiment, the vertical plate 201 is located between the lifting platform b and the platform track d, one end of which is fixedly arranged with the lifting platform b. The jack 202 is used for inserting the plug board 301. The inclined plates 203 are arranged on the side of the vertical plate 201 close to the platform track d, and the inclined plates 203 are used for movably connecting with the anti-falling block 401. The two inclined plates 203 present an "eight" - shaped structure with a narrow upper part and a wide lower part, so as to guide the anti-falling block 401 to move upward and clamp the platform track d inward at the same time. The inclined plate 203 can be a square plate or a round rod, as long as it cooperates with the limiting groove 402.

[0038] The two-piece articulated frame unit 3 includes a plug board 301 inserted into the jack 202, an opening block 302 provided on the plug board 301 and used for connecting the anti-falling pull rope 1, and two articulated plates 303 with two ends respectively hinged to the opening block 302 and the two sliding block units 4.

[0039] In this embodiment, the plug board 301 is used for connecting the vertical plate 201, and at the same time makes the relative movement between the anti-falling block 401 and the vertical plate 201 smoother without the problem of left - right shaking. The opening block 302 is used for connecting the anti-falling pull rope 1 and the articulated plate 303, and the articulated plate 303 is used for hinging the anti-falling block 401, so as to limit the downward movement of the anti-falling block 401 while not affecting the inward tightening movement of the anti-falling block 401.

[0040] The sliding block unit 4 includes an anti-falling block 401 with the upper end hinged to the articulated plate 303 and used for clamping the platform track d, and a limiting groove 402 provided on the anti-falling block 401 and used for inserting the inclined plate 203.

[0041] In this embodiment, a limiting groove 402 is formed in the anti-falling clamping block 401. The upper end is hinged to the hinged plate 303, and the lower end is inserted into the inclined plate 203 through the limiting groove 402, so that the anti-falling clamping block 401 moves upward and inward along the inclined plate 203, thereby clamping the platform track d.

[0042] The inclined track plate unit 2 further includes two mounting blocks 204 which are arranged on the vertical plate 201 and are used for clamping the platform track d.

[0043] In this embodiment, the function of the mounting block 204 is to increase the structural stability of the inclined track plate unit 2. The mounting block 204 is placed on the platform track d, so that the inclined track plate unit 2 can move up and down along the platform track d and will not sway left and right under external forces, which makes the installation more convenient.

[0044] The inclined track plate unit 2 further includes a pulling spring 205 which is arranged on the vertical plate 201 and is used for connecting the bottom end of the anti-falling clamping block 401.

[0045] In this embodiment, when the anti-falling clamping block 401 clamps the platform track d, the pulling spring 205 can increase the connection strength between the inclined track plate unit 2 and the sliding clamping block unit 4 to a certain extent; when the falling hazard is eliminated and the lifting platform b does not need to clamp the platform track d, the anti-falling pulling rope 1 is relaxed, and the anti-falling clamping block 401 automatically retracts under the action of the pulling spring 205 to restore the normal operating state, without affecting the operation of the lifting platform b. A space for installing the pulling spring 205 needs to be reserved between the vertical plate 201 and the anti-falling clamping block 401. The vertical plate 201 can be separately arranged from the inclined plate 203, or can be sleeved on the inclined plate 203. In this way, a space needs to be left between the inclined plate 203 and the vertical plate 201 for sleeving the pulling spring 205.

[0046] The sliding clamping block unit 4 further includes a plurality of deceleration blocks 403 which are arranged on the anti-falling clamping block 401 and are used for clamping the platform track d.

[0047] In this embodiment, the deceleration block 403 is provided on the anti-falling clamping block 401. Since the lifting platform b falls at a relatively high speed, relying only on the anti-falling clamping block 401 to hold the platform track d tightly causes relatively large wear on the anti-falling clamping block 401. The deceleration block 403 can perform limit deceleration in advance, and a wear-resistant layer can be provided on the deceleration block 403. The deceleration block 403 can be integrally provided with the anti-falling clamping block 401, or can be fixedly provided on the anti-falling clamping block 401 by bolts. When applied to platform tracks d of other widths, it can be used by replacing the corresponding deceleration block 403, with stronger flexibility.

[0048] The two-section articulated frame unit 3 further includes a convex ring 304 provided at the bottom end of the insertion plate 301, and the inclined track plate unit 2 further includes an anti-disengagement plate 206 provided on the vertical plate 201 and used for clamping the convex ring 304.

[0049] In this embodiment, the convex ring 304 and the anti-disengagement plate 206 can prevent the insertion plate 301 from being disengaged from the vertical plate 201 under force, increasing the structural firmness.

[0050] The inclined track plate unit 2 further includes an L-shaped baffle 207 provided on the vertical plate 201 and used for protecting the inclined plate 203.

[0051] In this embodiment, the function of the L-shaped baffle 207 is to protect the inclined plate 203 from being damaged by external forces. Moreover, the usage scenarios of the anti-falling structure for the stacker are mostly dusty, and the L-shaped baffle 207 can effectively prevent dust from clogging the limit groove 402.

[0052] The distance L between the two anti-falling clamping blocks 401 is the width of the platform track d.

[0053] In this embodiment, the distance L between the two anti-falling clamping blocks 401 is the width of the platform track d, so as to ensure that the anti-falling clamping block 401 can clamp the platform track d after moving.

[0054] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various modifications can be made without departing from the purpose of the present invention. These are all non-creative modifications and are protected by the Patent Law as long as they are within the scope of the claims of the present invention.

Claims

1. A fall prevention structure for a stacker, characterized in that: The invention comprises an anti-falling pull rope (1) arranged on a stacking machine frame (a), an inclined track plate unit (2) arranged on a lifting platform (b), a two-section articulated frame unit (3) inserted on the inclined track plate unit (2) and connected to the anti-falling pull rope (1), and a sliding block unit (4) articulated on the two-section articulated frame unit (3) and used for clamping the platform track (d) after the stacking pull rope (c) breaks.

2. The anti-falling structure for a stacker according to claim 1, characterized in that: The inclined track plate unit (2) comprises a vertical plate (201), a plug hole (202) arranged on the vertical plate (201), and two inclined plates (203) arranged on the vertical plate (201) and close to the platform track (d).

3. The anti-falling structure for a stacker according to claim 2, characterized in that: The two-section articulated frame unit (3) comprises an insert plate (301) inserted into the insert hole (202), an opening block (302) arranged on the insert plate (301) and used to connect the anti-fall pull rope (1), and two hinged plates (303) at both ends of which are respectively hinged to the opening block (302) and the two sliding block units (4).

4. The anti-falling structure for a stacker according to claim 3, characterized in that: The sliding block unit (4) comprises an anti-falling block (401) whose upper end is hinged to the hinge plate (303) and is used to clamp the platform track (d), and a limiting groove (402) arranged on the anti-falling block (401) and is used to insert into the inclined plate (203).

5. The anti-falling structure for a stacker according to claim 2, characterized in that: The inclined track plate unit (2) further comprises two mounting blocks (204) arranged on the vertical plate (201) and used for clamping the platform track (d).

6. The anti-falling structure for a stacker according to claim 4, characterized in that: The inclined track plate unit (2) further comprises a pull-back spring (205) arranged on the vertical plate (201) and used for connecting the bottom end of the anti-falling block (401).

7. The anti-falling structure for a stacker according to claim 4, characterized in that: The sliding block unit (4) further comprises a plurality of deceleration blocks (403) which are arranged on the anti-falling block (401) and are used to clamp the platform track (d).

8. The anti-falling structure for a stacker according to claim 3, characterized in that: The two-section articulated frame unit (3) further comprises a convex ring (304) arranged on the bottom end of the plug plate (301), and the inclined track plate unit (2) further comprises an anti-slip plate (206) arranged on the vertical plate (201) and used to clamp the convex ring (304).

9. The anti-falling structure for a stacker according to claim 2, characterized in that: The inclined track plate unit (2) further comprises an L-shaped baffle plate (207) arranged on the vertical plate (201) and used for protecting the inclined plate (203).

10. The anti-falling structure for a stacker according to claim 4, characterized in that: The distance L between the two anti-falling blocks (401) is the width of the platform track (d).

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