Downhill anti-sliding device for conveying power and free chain

By designing anti-slip devices with anti-rollback blocks and proximity switches, the problem of slippage on the downhill section of the conveyor chain was solved, achieving high safety, high production efficiency, and low cost.

CN224171802UActive Publication Date: 2026-04-28JIANGSU LEXUAN INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LEXUAN INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-28

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Abstract

The utility model relates to the technical field of power and free chain sliding prevention, and provides a conveying power and free chain downhill sliding prevention device which comprises a traction rail, a traction chain used for dragging a conveying trolley is arranged in the traction rail, and a rotatable retaining block is arranged on the traction rail. A notch matched with the retaining block is formed in the position, above the traction chain, of the top of the traction rail so that after the retaining block rotates, the head of the retaining block can be clamped between the adjacent rollers in the traction chain. The device overcomes the defects in the prior art, and is reasonable in design, compact and simple in structure, high in production efficiency, low in production cost and easy to install. The device is simple in structure and high in safety, the phenomenon that the conveying chain slides on the slope section due to various reasons can be effectively prevented, safety accidents such as equipment damage and material falling caused by sliding are avoided, and the safety of personnel and equipment is protected.
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Description

Technical Field

[0001] This utility model relates to the field of anti-slippage technology for accumulation chains, specifically to an anti-slippage device for a downhill accumulation chain. Background Technology

[0002] In modern industrial production, accumulation conveyor systems are widely used for the conveying and accumulation of various materials, especially in automobile manufacturing, electronic assembly, and logistics warehousing. Accumulation conveyor systems drive conveyor trolleys to move along traction rails and load-bearing rails via traction chains, achieving efficient material transfer and accumulation.

[0003] However, in practical applications, especially on the downhill section of the conveyor chain, the conveyor trolley is prone to slippage due to gravity, leading to equipment damage, material falling and other safety accidents, which seriously affect production efficiency and safety. To address this, we propose a downhill anti-slippage device for the conveyor accumulation chain. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a device for preventing slippage of a conveyor and accumulation chain downhill, thereby solving the aforementioned problems in the prior art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a conveying and accumulating chain downhill anti-slip device, including a traction rail, a traction chain for traction of the conveying trolley is provided in the traction rail, a rotatable anti-slip block is provided on the traction rail, and a groove for matching the anti-slip block is opened at the top of the traction rail above the traction chain so that after the anti-slip block rotates, its head is stuck between adjacent rollers in the traction chain.

[0008] Furthermore, a support rail for supporting and guiding the conveying trolley is provided directly below the traction rail, and a pusher that interacts with the bottom of the anti-slip block is provided inside the conveying trolley, so that the anti-slip block has three states: low position, high position, and anti-slip.

[0009] Furthermore, the traction rail is also provided with a proximity switch electrically connected to the traction chain. The proximity switch is located on the path of the anti-reverse block's rotation and is used to detect changes in the position of the anti-reverse block.

[0010] Furthermore, a fixing plate is provided on the traction rail at the position corresponding to the slot, and notches are symmetrically provided on both sides of the fixing plate corresponding to the slot. The anti-reverse block is rotatably connected to the fixing plate through a rotating shaft, and one of its bottom sides passes through the notch and the slot and is located on the movement path of the pusher.

[0011] Furthermore, the proximity switch is located in the path between the high position of the anti-reverse block and the anti-slip block.

[0012] Furthermore, when the anti-slip block is in the anti-slip state, its head is stuck between adjacent rollers of the traction chain.

[0013] Furthermore, the proximity switch is a contactless switch.

[0014] (III) Beneficial Effects

[0015] This utility model provides a device for preventing slippage of a conveyor accumulation chain downhill. It has the following beneficial effects:

[0016] 1. Simple structure, high production efficiency, low production cost and easy installation.

[0017] 2. High safety: It can effectively prevent the conveyor chain from slipping on slopes due to various reasons, avoiding safety accidents such as equipment damage and material falling caused by slipping, and protecting the safety of personnel and equipment.

[0018] 3. It ensures production continuity, avoids production line shutdowns caused by slippage, ensures smooth material transportation, improves production efficiency, and reduces production delays and economic losses caused by equipment failures.

[0019] 4. Reduced operational difficulty: It eliminates the need for frequent manual operation or intervention, thereby reducing the workload and difficulty for operators, and also reducing operational errors and safety hazards caused by human factors. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the anti-reverse block structure in its low-position state.

[0022] Figure 3 This is a schematic diagram of the anti-reverse block structure in its high-position state.

[0023] Figure 4 This is a schematic diagram of the anti-slip block structure of this utility model in the anti-slip state;

[0024] Figure 5 This is a schematic front view of the pusher structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the traction rail structure of this utility model.

[0026] In the diagram: 1. Traction rail; 2. Conveying trolley; 3. Traction chain; 4. Anti-reverse block; 5. Groove; 6. Proximity switch; 7. Bearing rail; 8. Push head; 9. Fixing plate; 10. Rotating shaft. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] See attached document Figure 1-6 A device for preventing slippage of a conveyor accumulation chain on a downhill slope includes a traction rail 1, a traction chain 3 for traction of a conveyor trolley 2 inside the traction rail 1, a rotatable anti-slip block 4 on the traction rail 1, and a slot 5 for engaging the anti-slip block 4 at the top of the traction rail 1 above the traction chain 3. This allows the anti-slip block 4 to rotate so that its head is locked between adjacent rollers in the traction chain 3. The conveyor trolley 2 moves along the traction rail 1 under the traction chain 3. When the conveyor trolley 2 slips, the anti-slip block 4 rotates and locks its head between adjacent rollers in the traction chain 3, thus locking the traction chain 3 and preventing the trolley from slipping.

[0029] In this embodiment, a support rail 7 is provided directly below the traction rail 1 to support and guide the conveyor trolley 2, ensuring the stable operation of the conveyor trolley 2. Both the traction rail 1 and the support rail 7 are inclined. The conveyor trolley 2 is provided with a pusher 8 that interacts with the bottom of the anti-slip block 4, so that the anti-slip block 4 has three states: low position, high position, and anti-slip. When the anti-slip block 4 is in the anti-slip state, the head is stuck between adjacent rollers of the traction chain 3. When the conveyor trolley 2 has not passed the anti-slip block 4, the anti-slip block 4 is in the low position. At this time, the traction... When the chain 3 is running normally, when the conveyor trolley 2 passes the anti-roll block 4, the pusher 8 touches the bottom of the anti-roll block 4, causing the anti-roll block 4 to flip and be in a high position. When the pusher 8 leaves the anti-roll block 4, due to the gravity of the anti-roll block 4 itself, it returns to a low position. When the conveyor trolley 2 is sliding, the pusher 8 quickly collides with the anti-roll block 4, causing the anti-roll block 4 to flip quickly and be in a stop-slip state. At this time, the head of the anti-roll block 4 is stuck between adjacent rollers in the traction chain 3, causing the conveyor trolley 2 to stop running.

[0030] In this embodiment, the traction rail 1 is also provided with a proximity switch 6 that is electrically connected to the drive of the traction chain 3. The proximity switch 6 is located on the rotation path of the anti-reverse block 4 and is used to detect the position change of the anti-reverse block 4. When the conveying trolley 2 slips, the anti-reverse block 4 will quickly flip and pass through the proximity switch 6, causing the drive of the traction chain 3 to stop. At this time, the traction chain 3 and its drive stop running at the same time, thereby preventing the conveying trolley 2 from slipping.

[0031] In this embodiment, a fixing plate 9 is provided on the traction rail 1 at the position corresponding to the slot 5. The two sides of the fixing plate 9 are symmetrically provided with notches corresponding to the slot 5. The anti-reverse block 4 is rotatably connected to the fixing plate 9 through the rotating shaft 10 to form the installation of the anti-reverse block 4. The bottom of one side of the anti-reverse block 4 passes through the notch and the slot 5 and is located on the movement path of the push head 8. When the conveying trolley 2 slides, the push head 8 will push the bottom of the anti-reverse block 4 when it passes by the anti-reverse block 4, and then make it flip along the rotating shaft 10. At this time, the other end of the anti-reverse block 4 will be inserted into the adjacent rollers in the traction chain 3 through the notch on the other side.

[0032] In this embodiment, the proximity switch 6 is located in the path between the high position of the anti-reverse block 4 and the anti-slip block, ensuring that the proximity switch 6 only works when the conveyor trolley 2 slips.

[0033] In this embodiment, the proximity switch 6 is a contactless switch that utilizes the principle of electromagnetic induction. The anti-reverse block 4 is made of metal. When it enters the sensing range of the proximity switch 6, it causes a change in the inductance value of the coil inside the proximity switch 6, thereby triggering the switch action.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for preventing slippage of a conveyor chain downhill, comprising a traction rail (1), characterized in that: The traction rail (1) is provided with a traction chain (3) for traction and conveying trolley (2). The traction rail (1) is provided with a rotatable anti-reverse block (4). The top of the traction rail (1) is provided with a slot (5) above the traction chain (3) to match the anti-reverse block (4), so that after the anti-reverse block (4) rotates, its head is stuck between adjacent rollers in the traction chain (3).

2. The anti-slip device for a conveyor accumulation chain downhill as described in claim 1, characterized in that: The traction rail (1) is provided with a support rail (7) for supporting and guiding the conveying trolley (2) directly below it. The conveying trolley (2) is provided with a pusher (8) that interacts with the bottom of the anti-slip block (4) so ​​that the anti-slip block (4) has three states: low position, high position and anti-slip.

3. The anti-slip device for a conveyor accumulation chain downhill as described in claim 2, characterized in that: The traction rail (1) is also provided with a proximity switch (6) that is electrically connected to the traction chain (3). The proximity switch (6) is located on the path of the anti-reverse block (4) and is used to detect the position change of the anti-reverse block (4).

4. The anti-slip device for a conveyor accumulation chain downhill as described in claim 2, characterized in that: A fixing plate (9) is provided on the traction rail (1) at the position corresponding to the slot (5). The fixing plate (9) has notches symmetrically provided on both sides corresponding to the slot (5). The anti-reverse block (4) is rotatably connected to the fixing plate (9) through the rotating shaft (10). One bottom of its side passes through the notch and the slot (5) and is located on the movement path of the pusher (8).

5. The anti-slip device for a conveyor accumulation chain downhill as described in claim 3, characterized in that: The proximity switch (6) is located in the path between the high position of the anti-reverse block (4) and the anti-slip block.

6. The anti-slip device for a conveyor accumulation chain downhill as described in claim 2, characterized in that: When the anti-slip block (4) is in the anti-slip state, its head is stuck between the adjacent rollers of the traction chain (3).

7. The anti-slip device for a conveyor accumulation chain downhill as described in claim 3, characterized in that: The proximity switch (6) is a contactless switch.