Mine cage door

CN224783589UActive Publication Date: 2026-09-22XUZHOU ZHONGTAI COAL MINE SAFETY EQUIP MFG CO LTD
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Patent Information

Application Number
CN202522154328.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-09-22
Estimated Expiration
2035-10-11

AI Technical Summary

Technical Problem

现有的在抗冲击防护结构设计方面存在明显不足,普遍未针对罐笼门设置防护处理结构,具体而言,现有罐笼门大多采用普通钢板直接焊接成型,门板厚度与材质强度仅能满足常规承载需求,缺乏针对动态撞击载荷的抗冲击强化设计,这种缺乏防护处理的结构设计,使得罐笼门在实际运行过程中面临严峻的损坏风险:当罐笼在井下巷道内移动时,巷道顶部或侧壁掉落的碎石、矿块,以及运输过程中意外晃动的矿石堆,极易直接撞击罐笼门表面;此外,在罐笼装卸矿石或设备时,重型物料的意外磕碰也会对罐笼门造成冲击

Benefits of technology

1、本实用新型通过设置了模块化防护组件,通过在罐笼门体表面设置模块化防护组件含双面骨架、模块板,模块板可直接承受井下碎石、矿块的撞击,避免罐笼门体直接受损,相比现有无防护的整体焊接罐笼门,大幅降低门板凹陷、变形的概率,延长罐笼门整体使用寿命,且当某一模块板撞击受损时,无需整体更换,仅需单独拆卸更换受损模块板,减少备件采购成本,缩短维修时间。

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Abstract

The utility model belongs to cage door technical field, and disclose a cage door for mine cage, including cage main part, the surface installation of cage main part has modularization protection subassembly, modularization protection subassembly includes symmetrical hinged in the surface of cage main part cage door body and the two -sided framework and the module board for modularization protection, positioning block, branch plate, fixed screw that can be detachably connected in the surface of cage door body, the surface installation of module board has auxiliary assembly, auxiliary assembly includes setting in rubber strip of module board near one side surface of cage door body, the utility model has can carry out the impact handling to cage door, avoid the impact of outside when using, cause the door panel recess, deformation etc.
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Description

Technical Field

[0001] This utility model belongs to the technical field of mine cage doors, specifically a mine cage door. Background Technology

[0002] As the core transportation equipment in a mine hoisting system, the mine cage primarily undertakes the vertical transportation of personnel, ore, equipment, and materials. The cage door, as a critical safety protection component, directly affects the safety, efficiency, and continuity of mine transportation operations through its structural integrity and functional stability. In actual mine production scenarios, the cage frequently travels between underground horizontal roadways and the surface. During opening and closing, as well as during the cage's operation, collisions or scrapes with rocks, slag, and transportation equipment components within the underground roadways are inevitable. Existing designs for impact-resistant protective structures are significantly inadequate, generally lacking protective measures for cage doors. Specifically, most existing cage doors are directly welded from ordinary steel plates, with thickness and material strength only sufficient for conventional load-bearing requirements. They lack impact-resistant reinforcement designs for dynamic impact loads. This lack of protective measures exposes cage doors to severe damage risks during actual operation: when the cage moves within underground tunnels, falling rocks and ore blocks from the tunnel roof or sidewalls, as well as accidentally shifting ore piles during transport, can easily impact the cage door surface. Furthermore, accidental collisions of heavy materials during ore or equipment loading and unloading can also impact the cage door. These impacts can cause significant dents and deformation of the cage door panels, and in severe cases, even cracking of the door panels and twisting of the door frame, compromising the sealing performance and locking accuracy of the cage door. On the other hand, due to the lack of modular design, when a local area of ​​the cage door is damaged by an impact, the damaged part cannot be disassembled and replaced separately; the entire large-area structural component must be repaired or replaced.

[0003] Therefore, a cage door for mine cages is proposed to address the above problems. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a mine cage door, which has the advantages of being able to provide impact resistance to the cage door, preventing it from being dented or deformed by external impacts during use, thus affecting the normal use of the cage door, and being able to disassemble and replace the impacted local area separately, avoiding the need to repair or replace the entire large-area structural component.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mine cage door, comprising a cage body; The surface of the cage body is equipped with a modular protection assembly, which includes a cage door symmetrically hinged to the surface of the cage body, a double-sided frame detachably connected to the surface of the cage door by bolts, and modular plates, positioning blocks, support plates, and fixing screws for modular protection. The surface of the module plate is equipped with auxiliary components, which include a rubber strip disposed on the surface of the module plate near the cage door, and inserts, slots for fixing, and friction pads mounted on the surface of the rubber strip.

[0006] Preferably, multiple module plates are respectively attached to both sides of the double-sided frame. The positioning block is installed on the side surface of the module plate close to the double-sided frame, and the surface of the double-sided frame is provided with a positioning groove that matches the positioning block. The positioning block is engaged in the positioning groove. Multiple support plates are symmetrically installed on both sides of the double-sided frame. The fixing screw is threaded into the threaded hole opened on the surface of the support plate, and one end of the fixing screw passes through the support plate and is threaded into the threaded hole opened on the surface of the module plate.

[0007] Preferably, the double-sided frame consists of two panels, which are located on the front and back sides of the cage door, respectively.

[0008] Preferably, the module plate has multiple cross-shaped reinforcing ribs embedded inside.

[0009] Preferably, the slot is formed inside the module plate, and the insert is inserted into the slot.

[0010] Preferably, the friction pad is installed on the contact surface between the rubber strip and the cage door, and the friction pad is in contact with the cage door.

[0011] Preferably, the rubber strip is L-shaped and located in the gap between the module plate and the cage door.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model incorporates a modular protective component. By setting a modular protective component, including a double-sided frame and modular plates, on the surface of the cage door, the modular plates can directly withstand the impact of underground gravel and ore blocks, preventing direct damage to the cage door. Compared with existing unprotected integral welded cage doors, this significantly reduces the probability of door plate dents and deformations, extends the overall service life of the cage door, and when a modular plate is damaged by impact, it does not require replacement of the entire cage door; only the damaged modular plate needs to be disassembled and replaced, reducing spare parts procurement costs and shortening maintenance time.

[0013] 2. This utility model incorporates auxiliary components, such as rubber strips and friction plates, to fill the gaps between the module plate and the cage door. This prevents underground dust and slag from entering the gaps and causing the components to jam. Furthermore, when the cage door is impacted, the rubber strips act as a buffer, reducing rigid collision wear between the module plate and the cage door. The friction plates enhance the adhesion stability between the rubber strips and the cage door. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the cage door of this utility model; Figure 3 This is a schematic diagram of the cage door and double-sided frame structure of this utility model; Figure 4 This is a schematic diagram of the double-sided frame and modular panels of this utility model; Figure 5 This is a schematic diagram of the double-sided frame and support plate of this utility model; Figure 6 This is a schematic diagram of the structure of the rubber strip and insert of this utility model.

[0015] In the diagram: 1. Cage body; 2. Modular protection components; 21. Cage door; 22. Double-sided frame; 23. Module plate; 24. Positioning block; 25. Support plate; 26. Fixing screw; 3. Auxiliary components; 31. Rubber strip; 32. Insert strip; 33. Slot; 34. Friction plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 6 As shown, this utility model provides a cage door for mine cages, including a cage body 1; The surface of the cage body 1 is equipped with a modular protection component 2. The modular protection component 2 includes a cage door 21 symmetrically hinged to the surface of the cage body 1, a double-sided frame 22 detachably connected to the surface of the cage door 21 by bolts, and a modular plate 23, a positioning block 24, a support plate 25, and a fixing screw 26 for modular protection. Multiple modular plates 23 are respectively attached to both sides of the double-sided frame 22. Positioning blocks 24 are installed on the side surface of the modular plate 23 closest to the double-sided frame 22, and the surface of the double-sided frame 22 has positioning grooves that are compatible with the positioning blocks 24. The positioning blocks 24 are snapped into these positioning grooves. Multiple support plates 25 are symmetrically installed on both sides of the double-sided frame 22. Fixing screws 26 are threaded into the threaded holes on the surface of the support plates 25, and one end of the fixing screws 26 passes through the support plates 25 and is threaded into the threaded holes on the surface of the modular plates 23. By setting modular protective components 2 including double-sided frame 22 and modular plates 23 on the surface of the cage door 21, the modular plates 23 can directly withstand the impact of underground gravel and ore blocks, avoiding direct damage to the cage door 21. Compared with the existing unprotected integral welded cage door, the probability of door panel dent and deformation is greatly reduced, and the overall service life of the cage door is extended. When a certain modular plate 23 is damaged by impact, it is not necessary to replace the whole thing, but only to disassemble and replace the damaged modular plate 23, reducing spare parts procurement costs and shortening maintenance time.

[0018] The double-sided frame 22 consists of two panels, which are located on the front and rear sides of the cage door 21 respectively. It can drive the module plate 23 to cover the front and rear sides of the cage door 21. Whether the front module plate 23 is impacted during cage operation or the back module plate 23 is bumped during loading and unloading, the module plate 23 of the corresponding panel can resist the impact, further reducing the risk of damage to the cage door 21.

[0019] The module 23 is embedded with multiple cross-shaped reinforcing ribs, which can form a mesh support structure inside the module 23, improving the bending strength and dent resistance of the module 23 and ensuring that the module 23 maintains its protective performance for a long time.

[0020] The surface of the module plate 23 is equipped with an auxiliary component 3. The auxiliary component 3 includes a rubber strip 31 disposed on the surface of the module plate 23 near the cage door 21, an insert 32 disposed on the surface of the rubber strip 31, a slot 33 for fixing, and a friction plate 34. The slot 33 is located inside the module plate 23, and the insert strip 32 is inserted into the slot 33. The rubber strip 31 and friction plate 34 can fill the gap between the module plate 23 and the cage door 21. On the one hand, it can prevent underground dust and slag from entering the gap and causing the components to jam. On the other hand, when the cage door is impacted, the rubber strip 31 can play a buffering role, reducing the rigid collision wear between the module plate 23 and the cage door 21. The friction plate 34 can enhance the fit stability between the rubber strip 31 and the cage door 21.

[0021] Friction pad 34 is installed on the contact surface between rubber strip 31 and cage door 21, and friction pad 34 is in close contact with cage door 21. Friction pad 34 is made of wear-resistant material with high friction coefficient (such as nitrile rubber and metal particle composite material) to ensure that rubber strip 31 always tightly fills the gap between double-sided frame 22 and cage door 21, and avoids dust entering due to seal failure.

[0022] The rubber strip 31 is designed in an L-shape and is located in the gap between the module plate 23 and the cage door 21 to prevent dust and slag from entering through the gap. The L-shaped rubber strip 31 can precisely fit the corner structure of the gap.

[0023] Among them, the structure of cage body 1 and cage door 21 is existing technology, and its working principle is a well-known technology. The appropriate model is selected according to the actual use.

[0024] Working principle and process: Since the double-sided frame 22 is detachably connected to the surface of the cage door 21 by bolts, and the double-sided frame 22 is composed of two panels (located on the front and back sides of the cage door 21 respectively), at this time, unscrew all the bolts connecting the double-sided frame 22 to the cage door 21, and separate the front and back panels from the surface of the cage door 21 respectively. Multiple support plates 25 are symmetrically installed on both sides of the double-sided frame 22. The fixing screws 26 are threaded into the threaded holes of the support plates 25 and one end passes through the threaded hole of the module plate 23. Use a screwdriver to unscrew all the fixing screws 26 on the support plates 25 corresponding to the damaged module plate 23 one by one. Since the module plate 23 is snapped into the positioning groove of the double-sided frame 22 by the positioning block 24, after unscrewing the fixing screws 26, hold both sides of the damaged module plate 23 with both hands and gently apply force in the opposite direction of the positioning groove to make the positioning block 24 disengage from the positioning groove. Then the damaged module plate 23 can be removed from the surface of the double-sided frame 22. Take the new module 23, align the positioning block 24 on the side of the double-sided frame 22 with the positioning groove of the double-sided frame 22, and gently push the module 23 so that the positioning block 24 is fully inserted into the positioning groove. Ensure that the module 23 is in contact with the surface of the double-sided frame 22. Align the fixing screw 26 with the threaded hole of the support plate 25 and screw it in with a screwdriver until one end of the fixing screw 26 passes through the support plate 25 and is screwed into the threaded hole of the module 23. Ensure that all fixing screws 26 are tightened evenly and that there is no looseness or shaking on the surface of the module 23. Align the double-sided frame 22 (front and rear panels) of the assembled new module plate 23 with the front and rear sides of the cage door 21 respectively, ensuring that the relative position of the double-sided frame 22 and the cage door 21 is accurate. Align the bolts with the connection holes of the double-sided frame 22 and the cage door 21, and then tighten the bolts until the double-sided frame 22 and the cage door 21 are tightly fitted without any looseness or shaking. When the rubber strip 31 is replaced, pull the rubber strip 31 so that the insert 32 on the surface of the rubber strip 31 is completely removed from the slot 33 of the module plate 23. Take the new rubber strip 31, align the insert 32 on its surface with the slot 33 of the module plate 23, and gently push it in along the direction of the slot 33 until the insert 32 is fully inserted into the slot 33. The friction plate 34 is in close contact with the surface of the cage door 21, thereby playing a buffering and sealing role.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cage door for a mine cage, comprising a cage body (1); Its features are: The surface of the cage body (1) is equipped with a modular protection assembly (2). The modular protection assembly (2) includes a cage door (21) symmetrically hinged to the surface of the cage body (1), a double-sided frame (22) detachably connected to the surface of the cage door (21) by bolts, and a modular plate (23), a positioning block (24), a support plate (25), and a fixing screw (26) for modular protection. The surface of the module plate (23) is equipped with an auxiliary component (3), which includes a rubber strip (31) disposed on the surface of the module plate (23) near the cage door (21), an insert (32) installed on the surface of the rubber strip (31), a slot (33) for fixing, and a friction plate (34).

2. The mine cage door according to claim 1, characterized in that: Multiple module plates (23) are respectively attached to both sides of the double-sided frame (22). The positioning block (24) is installed on the side surface of the module plate (23) close to the double-sided frame (22). The surface of the double-sided frame (22) is provided with a positioning groove that matches the positioning block (24). The positioning block (24) is snapped into this positioning groove. Multiple support plates (25) are symmetrically installed on both sides of the double-sided frame (22). The fixing screw (26) is threaded into the threaded hole opened on the surface of the support plate (25). One end of the fixing screw (26) passes through the support plate (25) and is threaded into the threaded hole opened on the surface of the module plate (23).

3. A mine cage door according to claim 1, characterized in that: The double-sided frame (22) consists of two panels, which are located on the front and back sides of the cage door (21), respectively.

4. A mine cage door according to claim 1, characterized in that: The module plate (23) is inlaid with multiple cross-shaped reinforcing ribs.

5. A mine cage door according to claim 1, characterized in that: The slot (33) is opened inside the module plate (23), and the insert (32) is inserted into the slot (33).

6. A mine cage door according to claim 1, characterized in that: The friction plate (34) is installed on the contact surface between the rubber strip (31) and the cage door (21), and the friction plate (34) is in contact with the cage door (21).

7. A mine cage door according to claim 1, characterized in that: The rubber strip (31) is L-shaped and is located in the gap between the module plate (23) and the cage door (21).