Pin tooth type translation safety door

Abstract

The utility model discloses a pin tooth type translation safety door, which belongs to the technical field of mine safety protection, is mounted on a shaft sleeve frame, and comprises a guide slideway, a hydraulic motor, a driving chain link, a connecting rod and a door leaf. The hydraulic motor drives the driving chain link to horizontally move along the guide slide way and drives the door leaf to be opened and closed through the connecting rod. Each driving chain link is of a segmented plate pin type structure, chain link plates are hinged through chain link connecting shafts, and guide rollers and self-lubricating shaft sleeves are arranged, so that the transmission efficiency is improved, and abrasion is reduced. A pin wheel is arranged at the shaft end of the hydraulic motor and matched with a tooth pin of the driving chain link, and stable opening and closing of the door leaf are guaranteed. According to the safety door, the chain clamping phenomenon caused by chain type transmission and the derailing risk caused by vertical movement of the door leaf are avoided, the use safety and reliability of the safety door are improved, meanwhile, the structure is simplified, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mine safety protection technology, and in particular to a pin-tooth type sliding safety door. Background Technology

[0002] In vertical shaft hoisting systems, the auxiliary shaft serves as the main passage for hoisting personnel, waste rock, and materials, making its safety and reliability paramount. Safety doors, as key components of the auxiliary shaft's operating equipment, directly impact the safety of the entire hoisting system. However, some mines still use manual safety doors, which not only pose significant safety hazards but also easily lead to operational errors, affecting hoisting efficiency.

[0003] Most existing automatic safety doors use chain drives. While this structure achieves automation, it still presents several problems in practical use. First, chain-driven safety doors are prone to chain slippage, leading to frequent malfunctions. Furthermore, chain drives are complex in structure, resulting in high maintenance and replacement costs, which significantly disrupts daily mine operations.

[0004] Another common type of safety door uses a hydraulic cylinder to lift and guide the door panel vertically along a guide rail. However, this structure has the drawback that the door panel's movement relies entirely on its own weight, making it prone to derailment. Furthermore, the vertical lifting structure presents certain safety hazards, such as the door panel accidentally falling.

[0005] To address the aforementioned issues, this utility model proposes a pin-tooth type sliding safety door, aiming to solve the problems of safety hazards, high maintenance costs, and high failure rates of existing safety doors through optimized design, and to provide a safer, more reliable, and easier-to-maintain safety door structure. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a pin-tooth type sliding safety door. The drive chain links are driven by a hydraulic motor to slide horizontally along the guide rail, which avoids the chain drop phenomenon of chain transmission and the derailment and accidental fall caused by the vertical movement of the door leaf along the guide rail.

[0007] To achieve the above objectives, this utility model provides a pin-tooth type sliding safety door, installed on a well casing frame, comprising:

[0008] A guide slide, which is horizontally installed on the side wall of the well casing, has two slide rails;

[0009] Two hydraulic motors are installed at the upper end of the guide slide;

[0010] Two drive links are respectively set in the two slide rails of the guide slide and are respectively connected to the two hydraulic motors, enabling them to move horizontally along the guide slide under the drive of the hydraulic motors;

[0011] Two sets of connecting rods, with their upper ends passing through the guide slides and respectively connected to the two drive chain links;

[0012] Two door panels are connected to the lower end of the connecting rod. Each door panel is connected to a set of connecting rods, and the two door panels are staggered to slide towards each other.

[0013] The drive chain link moves horizontally within the guide rail to open and close the door.

[0014] Furthermore, the drive chain link adopts a segmented plate pin structure, which is divided into multiple chain link plates, and the chain link plates are hinged to each other through a chain link connecting shaft.

[0015] Furthermore, a guide roller is provided on the side of the chain link plate, the guide roller is connected to the chain link plate through a roller shaft, and a self-lubricating bushing is provided between the roller shaft and the guide roller.

[0016] Furthermore, the hydraulic motor has a pin wheel at its shaft end, and toothed pins are provided between the link plates of the drive chain. The spacing of the toothed pins matches the pitch of the pin wheel. The hydraulic motor drives the pin wheel to rotate, and the pin wheel moves the drive chain horizontally to control the opening and closing of the door.

[0017] Furthermore, the lower surface of the guide slide is fixedly connected to the mounting bracket by bolts, and the mounting bracket is connected to the well casing frame by bolts or welding.

[0018] Furthermore, the hydraulic motor is mounted on the guide slide via a transmission device bracket.

[0019] Furthermore, it also includes:

[0020] Two door opening limit blocks are respectively installed on the lower surface of the guide slide to limit the opening position of the door leaf;

[0021] Two door closing limit blocks are respectively installed at both ends of the lower surface of the guide slide to limit the closing position of the door leaf.

[0022] Furthermore, connecting plates are attached to the upper ends of the two sets of connecting rods, and these connecting plates are bolted to the two drive chain links. Compared with the prior art, the beneficial effects achieved by this utility model are:

[0023] (1) The present invention relies on a hydraulic motor to drive the chain links to move horizontally along the guide slide throughout the process, which ensures the consistency and controllability of the action, avoids the chain drop phenomenon of chain transmission, and greatly improves the safety of operation.

[0024] (2) In this utility model, the door leaf always moves in a horizontal state to prevent the risk of accidental opening due to its own weight, and avoids derailment and accidental falling caused by the door leaf moving vertically along the guide rail, thereby significantly improving the safety of the security door.

[0025] (3) The drive chain link with a segmented plate pin structure adopted in this utility model simplifies the transmission structure and reduces the amount of maintenance work. A self-lubricating bushing is provided between the guide roller and the roller shaft, which further reduces maintenance costs and frequency. Attached Figure Description

[0026] Figure 1 This is an axonometric schematic diagram of the pin-tooth type sliding safety door provided in this embodiment of the utility model;

[0027] Figure 2 This is a side view of the pin-tooth type sliding safety door provided in this embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the pin-tooth type sliding safety door provided in this embodiment of the utility model;

[0029] Figure 4 yes Figure 3 Schematic diagram of the DD cross section in the middle;

[0030] Figure 5 This is a top view schematic diagram of the pin-tooth type sliding safety door provided in this embodiment of the utility model;

[0031] Figure 6 yes Figure 3 Schematic diagram of the EE cross section in the diagram;

[0032] Figure 7 This is a schematic diagram of the pin wheel provided in an embodiment of the present utility model;

[0033] Figure 8 yes Figure 1 Schematic diagram of the connection between the hydraulic motor and the pin drive;

[0034] Figure 9 yes Figure 3 Schematic diagram of the CC section in the image;

[0035] Figure 10 This is an isometric view of the drive chain link in the pin-tooth sliding safety door provided in this embodiment of the utility model;

[0036] Figure 11This is a cross-sectional schematic diagram of the drive chain link in the pin-tooth type sliding safety door provided in this embodiment of the utility model;

[0037] Figure 12 This is a cross-sectional schematic diagram of the drive chain link in the pin-tooth sliding safety door provided in this embodiment of the utility model from another perspective;

[0038] Figure 13 This is a schematic diagram of the drive chain link in the pin-tooth type sliding safety door provided in this embodiment of the utility model;

[0039] Labeling Explanation: 1. Guide slide; 2. Door opening limit block; 3. Connecting plate; 4. Connecting pin; 5. Transmission device bracket; 6. Connecting rod; 7. Door leaf; 8. Mounting bracket; 9. Guide frame; 10. Drive chain link; 10-1. Guide roller; 10-2. Chain link plate; 10-3. Toothed pin; 10-4. Chain link connecting shaft; 10-5. Roller shaft; 10-6. Self-lubricating bushing; 11. Hydraulic motor; 12. Pin wheel; 13. Door closing limit block; 14. Well casing frame. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0041] In the description of this utility model, it should be understood that the terms "upper," "lower," "horizontal," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] like Figure 1— Figure 5 As shown, this embodiment provides a pin-tooth type sliding safety door, installed on the well casing frame 14, including:

[0044] Guide slide 1, which is horizontally installed on the side wall of well casing 14, has two slide rails;

[0045] Two hydraulic motors 11 are installed at the upper end of the guide slide 1;

[0046] Two drive links 10 are respectively set in the two slide rails of the guide slide 1 and are respectively connected to two hydraulic motors 11 for transmission, and can move horizontally along the guide slide 1 under the drive of the hydraulic motors 11;

[0047] Two sets of connecting rods 6, with their upper ends passing through guide slides 1, are respectively connected to two drive chain links 10;

[0048] Two door panels 7 are connected to the lower end of the connecting rod 6. Each door panel 7 is connected to a set of connecting rods 6, and the two door panels 7 are staggered to slide towards each other.

[0049] The drive link 10 moves horizontally within the guide rail 1 to open and close the door 7.

[0050] like Figure 10 and Figure 11 As shown, the drive link 10 adopts a segmented plate pin structure, which is divided into multiple link plates, and the link plates are hinged to each other through the link connecting shaft 10-4.

[0051] like Figure 12 and Figure 13 As shown, a guide roller 10-1 is provided on the side of the chain link plate. The guide roller 10-1 is connected to the chain link plate through a roller shaft 10-5, and a self-lubricating bushing 10-6 is provided between the roller shaft 10-5 and the guide roller 10-1.

[0052] like Figures 6-8 As shown, the shaft end of the hydraulic motor 11 is provided with a pin wheel 12, and the chain link plates of the drive chain 10 are provided with toothed pins 10-3. The spacing of the toothed pins 10-3 matches the pitch of the pin wheel 12. The hydraulic motor 11 drives the pin wheel 12 to rotate, and the pin wheel 12 moves the drive chain 10 horizontally to control the opening and closing of the door leaf 7.

[0053] Preferably, the lower surface of the guide slide 1 is fixedly connected to the mounting bracket 8 by bolts, and the mounting bracket 8 is connected to the well casing frame 14 by bolts or welding.

[0054] Preferably, the hydraulic motor 11 is mounted on the guide slide 1 via the transmission device bracket 5.

[0055] Specifically, such as Figure 3 and Figure 5As shown, the pin-type sliding safety door also includes:

[0056] Two door opening limit blocks 2 are respectively installed on the lower surface of the guide slide 1 to limit the opening position of the door leaf 7;

[0057] Two closing limit blocks 13 are respectively installed at both ends of the lower surface of the guide slide 1 to limit the closing position of the door leaf 7.

[0058] Optionally, the upper ends of the two sets of connecting rods 6 are connected to connecting plates 3, the connecting plates 3 are connected to the two drive chain links 10 by bolts, and the connecting plates 3 and the connecting rods 6 are connected by connecting pins 4.

[0059] When using, such as Figure 1 The diagram shows both doors 7 in the closed position, stationary during normal cage lifting. When the left cage reaches its position, the hydraulic motor 11 drives the pin wheel 12 to rotate. The pin wheel 12 moves the drive chain link 10 on the left door 7 horizontally to the right. When it reaches the open position, the hydraulic motor 11 stops, and the door opening limit block 2 blocks the connecting plate to prevent the door 7 from exceeding its position. When closing is required, the hydraulic motor 11 rotates in the opposite direction, and the door 7 moves to the left. When it reaches the closed position, the hydraulic motor 11 stops, and the door closing limit block 13 installed on the left side of the slide block the left end of the drive chain link 10 on the left door 7 to prevent the door 7 from exceeding the closed position. Similarly, when the right cage reaches its position, the right door moves in the opposite direction as described above.

[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pin-tooth type sliding safety door, installed on a well casing frame (14), characterized in that, include: A guide slide (1), which is horizontally installed on the side wall of the well casing frame (14), has two slide rails; Two hydraulic motors (11) are installed at the upper end of the guide slide (1); Two drive links (10) are respectively set in the two slide rails of the guide slide (1) and are respectively connected to the two hydraulic motors (11) for transmission, and can move horizontally along the guide slide (1) under the drive of the hydraulic motors (11); Two sets of connecting rods (6) have their upper ends passing through the guide slide (1) and connected to the two drive chain links (10) respectively; Two door panels (7) are connected to the lower end of the connecting rod (6). Each door panel (7) is connected to a set of connecting rods (6), and the two door panels (7) are staggered to slide towards each other. The drive chain link (10) moves horizontally within the slide rail of the guide slide (1) to realize the opening and closing of the door leaf (7).

2. The pin-tooth type sliding safety door according to claim 1, characterized in that, The drive chain link (10) adopts a segmented plate pin structure, which is divided into multiple chain link plates, and the chain link plates are hinged to each other through the chain link connecting shaft (10-4).

3. The pin-tooth type sliding safety door according to claim 2, characterized in that, The chain link plate is provided with a guide roller (10-1) on its side. The guide roller (10-1) is connected to the chain link plate through a roller shaft (10-5), and a self-lubricating bushing (10-6) is provided between the roller shaft (10-5) and the guide roller (10-1).

4. The pin-tooth type sliding safety door according to claim 2, characterized in that, The hydraulic motor (11) has a pin wheel (12) at its shaft end. The drive chain link (10) has toothed pins (10-3) between its chain link plates. The spacing of the toothed pins (10-3) matches the pitch of the pin wheel (12). The hydraulic motor (11) drives the pin wheel (12) to rotate. The pin wheel (12) moves the drive chain link (10) horizontally to control the opening and closing of the door leaf (7).

5. The pin-tooth type sliding safety door according to claim 1, characterized in that, The lower surface of the guide slide (1) is fixedly connected to the mounting bracket (8) by bolts, and the mounting bracket (8) is connected to the well casing bracket (14) by bolts or welding.

6. The pin-tooth type sliding safety door according to claim 1, characterized in that, The hydraulic motor (11) is mounted on the guide slide (1) via a transmission device bracket (5).

7. The pin-tooth type sliding safety door according to claim 1, characterized in that, Also includes: Two door opening limit blocks (2) are respectively installed on the lower surface of the guide slide (1) to limit the opening position of the door leaf (7); Two closing limit blocks (13) are respectively installed at both ends of the lower surface of the guide slide (1) to limit the closing position of the door leaf (7).

8. The pin-tooth type sliding safety door according to claim 1, characterized in that, The upper ends of the two sets of connecting rods (6) are connected to connecting plates (3), and the connecting plates (3) are connected to the two drive chain links (10) by bolts.

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