Device for preventing safety door from being opened accidentally

Abstract

The utility model relates to the field of mining elevator safety doors, in particular to a device for preventing a safety door from being accidentally opened, which comprises a first fixing assembly and a second fixing assembly, the first fixing assembly comprises a first bracket and a rotating sheet, the first bracket is fixed on one safety door, one end of the rotating sheet is rotatably mounted on the first bracket, and the other end of the rotating sheet is rotatably mounted on the second bracket; the second fixing assembly comprises a second support, the second support is fixed to the other safety door, and the other end of the rotating piece is installed on the second support. The problem that the elevator suddenly stops due to the fact that the safety door is opened accidentally is solved, it is guaranteed that the safety door cannot be opened accidentally due to vibration, and therefore stable lifting of the elevator is maintained, safety of passengers is guaranteed, and the service life of the elevator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of safety doors of mine hoists, in particular to a device for preventing the safety doors from accidentally opening. Background Art

[0002] The mine hoist forms a closed space through a safety door to protect the personnel in the hoist and prevent them from falling out and causing safety accidents. The locking sensor on the safety door monitors whether the safety door is completely closed. When the locking sensor is in the disconnected state, the hoist will make an emergency stop according to the signal of the locking sensor to ensure safety.

[0003] However, during the operation of the elevator, there is a certain vibration when the elevator rises or falls. When the elevator vibrates, the safety door of the elevator is easy to open accidentally, causing the locking sensor of the safety door to be in a disconnected state. The elevator will make an emergency stop according to the signal of the locking sensor. When the elevator makes an emergency stop, it may cause damage to the wire rope and the elevator that pulls the elevator. At the same time, the people in the elevator are easy to hit the elevator under the action of inertia, causing the elevator to cause harm to the people riding the elevator.

[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of this application is to provide a device for preventing the safety door from opening accidentally, aiming to ensure that the safety door on the elevator will not open accidentally during the operation of the elevator, avoid emergency stops of the elevator, and ensure safety.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows: A device to prevent the safety door from opening accidentally, comprising:

[0007] A first fixing assembly, the first fixing assembly comprising a first bracket and a rotating piece, the first bracket being fixed to one of the safety doors, and one end of the rotating piece being rotatably mounted on the first bracket;

[0008] A second fixing assembly, the second fixing assembly comprising a second bracket, the second bracket being fixed to another of the safety doors, and the other end of the rotating piece being mounted on the second bracket;

[0009] The other end of the rotating piece is provided with a clamping hole, and the second bracket includes a clamping rod, and the clamping rod is embedded in the clamping hole to clamp the rotating piece on the second bracket;

[0010] The other end of the rotating piece is further provided with an insertion hole, and the second bracket further comprises an insertion rod, and the insertion rod is inserted into the insertion hole.

[0011] Furthermore, the second fixing assembly includes a locking fixing plate, and the locking fixing plate is sleeved on the locking rod to fix the locking rod and the locking hole.

[0012] Furthermore, the second fixing component includes an interpenetrating fixing plate, and the interpenetrating fixing plate is sleeved on the interpenetrating rod to fix the interpenetrating rod and the interpenetrating hole.

[0013] Furthermore, the first fixing assembly includes a rotating rod, and the rotating piece is rotatably mounted on the rotating rod.

[0014] Furthermore, the first fixing component also includes a rotation fixing plate, and the rotation fixing plate is sleeved on the rotation rod to fix the rotation rod and the rotation plate.

[0015] Furthermore, the first fixing assembly also includes a limit block, and the limit block is installed on the one of the safety doors to limit the movement of the rotating piece.

[0016] Furthermore, the rotating piece is also provided with a winding strip, and the winding strip is bound to the second bracket to fix the rotating piece and the second bracket.

[0017] Furthermore, the rotating piece and the second bracket are made of magnetic materials so that the rotating piece and the second bracket attract each other.

[0018] Beneficial effects:

[0019] The present application provides a device to prevent the safety door from opening accidentally, ensuring that the safety door on the elevator will not open accidentally during the operation of the elevator. The safety door is locked by installing the rotating piece of the first fixed component on the second bracket. Even if the safety door vibrates when the elevator is raised or lowered, the rotating piece can be firmly engaged on the second bracket to keep the device locked for the safety door. At this time, the locking sensor is still in a connected state, and the elevator can still be raised and lowered normally. The elevator will not stop suddenly due to the sudden opening of the safety door, thereby ensuring the safety of the passengers in the elevator and extending the service life of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the rotating piece in the present invention being clamped on the second bracket;

[0021] Figure 2 It is a schematic diagram of the present invention when the rotating piece is separated from the second bracket.

[0022] Description of reference numerals:

[0023] 1. First fixing assembly; 11. First bracket; 111. Rotating rod; 12. Rotating plate; 121. Engaging hole; 122. Insertion hole; 123. Winding strip; 13. Rotating fixing plate; 2. Second fixing assembly; 21. Second bracket; 211. Engaging rod; 212. Insertion rod; 22. Engaging fixing plate; 23. Insertion fixing plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "push-pull" and "open-and-close" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "push-pull" and "open-and-close" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] The utility model provides a device to prevent the safety door from opening accidentally. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] like Figure 1 to Figure 2As shown, a device for preventing the accidental opening of the safety door ensures that the safety door on the elevator will not be accidentally opened during the operation of the elevator, avoiding the elevator from suddenly stopping, ensuring safety, and preventing injuries to people in the elevator. The safety door of the elevator is a double-door design, and locking sensors are installed on the opposite sides of the safety door. When the safety door is closed, the two opposite sides of the safety door are closest to each other. At this time, the locking sensor is connected, and the locking sensor sends a signal to the elevator. After receiving the signal, the elevator starts to rise and fall; when the safety door is opened, the two opposite sides gradually move away, the locking sensor is disconnected, and the locking sensor sends a signal to the elevator, so that the elevator stops suddenly after receiving the signal, and the elevator stops rising and falling. The elevator monitors whether the safety door is opened through the locking sensor. When it detects that the safety door is opened, it will stop rising and falling immediately, thereby ensuring the safety of people when riding the elevator and preventing people from falling from the elevator. However, when the elevator is lifted or lowered, the safety door may be accidentally opened due to vibration, and an emergency stop may be made. Although the elevator can be stopped suddenly at this time, the sudden stop of the elevator may also cause harm to the passengers. For example, the passengers may hit the inner wall of the elevator under the action of inertia. Therefore, it is necessary to prevent the safety door from accidentally opening when the elevator is lifted or lowered, and to prevent the elevator from causing an emergency stop due to the accidental opening of the safety door. Therefore, the device in this embodiment is used to prevent the safety door from accidentally opening. In this embodiment, a device for preventing the safety door from accidentally opening includes a first fixing component 1 and a second fixing component 2. The first fixing component 1 includes a first bracket 11 and a rotating piece 12. The first bracket 11 is fixed on a safety door. In this embodiment, it is fixed by welding. One end of the rotating piece 12 is rotatably mounted on the first bracket 11. Therefore, the rotating piece 12 can rotate with the first bracket 11 as the rotating axis. The first bracket 11 is a bolt with a bolt specification of M10*50. The rotating piece 12 is made of metal material, and in this embodiment, it is galvanized flat steel with a length of 25cm. The second fixing assembly 2 includes a second bracket 21, which is fixed on another safety door. In the present embodiment, the second bracket 21 is fixed by welding. The other end of the rotating piece 12 is mounted on the second bracket 21. When the rotating piece 12 is rotated to a certain position, the rotating piece 12 is inserted into the second bracket 21. Therefore, when the hoist vibrates during the lifting process, the rotating piece 12 is also firmly inserted into the second bracket 21 and will not fall off from the second bracket 21. The safety door is continuously locked so that the safety door will not be accidentally opened when vibration occurs.

[0029] In order to enable the rotating piece 12 to be engaged in the second bracket 21, a engaging hole 121 is provided at the other end of the rotating piece 12. The second bracket 21 includes a engaging rod 211. The engaging rod 211 is cylindrical and is a bolt in this embodiment with a specification of M10*50. When the rotating piece 12 is rotated to a certain position, the engaging rod 211 is embedded in the engaging hole 121 to engage the rotating piece 12 on the second bracket 21. Even when the hoist vibrates, the rotating piece 12 will not detach from the engaging rod 211 due to the vibration, thereby maintaining the locked state of the safety door and preventing the safety door from being accidentally opened.

[0030] Furthermore, in order to strengthen the locking effect of the rotating piece 12 and the second bracket 21 and prevent the rotating piece 12 from being separated from the locking rod 211 due to stronger vibration, an insertion hole 122 is also provided at the other end of the rotating piece 12. The insertion hole 122 is arranged next to the locking hole 121. The locking hole 121 extends from the bottom of the rotating piece 12 to the middle of the rotating piece 12 in a strip shape, while the insertion hole 122 is a circular hole. In order to further fix the rotating piece 12 and the second bracket 21 through the insertion hole 122, the second bracket 21 also includes an insertion rod 212, and the insertion rod 212 is inserted into the insertion hole 122. At this time, the insertion rod 212 and the insertion hole 122 have an interference fit, which means that under normal circumstances or when the elevator is in a vibrating state, the insertion rod 212 will not fall out of the insertion hole 122. Therefore, when it is necessary to lock the safety door by engaging the rotating piece 12 on the second bracket 21, first move the rotating piece 12 so that the rotating piece rotates in the direction of the second bracket 21, and then the engaging rod 211 is engaged with the engaging hole 121, and then continue to move the rotating piece 12, and the engaging hole 121 slides relative to the engaging rod 211, so that the engaging rod 211 gradually moves to the depth of the engaging hole 121, and when the insertion hole 122 is aligned with the insertion rod 212, the rotating piece 12 is moved in the direction close to the insertion rod 212, so that the insertion rod 212 is inserted into the insertion hole 122, and finally, the rotating piece 12 is fixed on the second bracket 21.

[0031] In order to strengthen the fixation between the locking rod 211 and the locking hole 121, the second fixing component 2 includes a locking fixing plate 22. When the locking rod 211 is locked in the locking hole 121, the locking fixing plate 22 is sleeved on the locking rod 211 to prevent the locking rod 211 from being separated from the locking hole 121, thereby fixing the locking rod 211 and the locking hole 121. The locking fixing plate 22 is two magnetic clips. When the locking rod 211 is locked in the locking hole 121, the two clips are respectively sleeved on both sides of the rotating plate 12. The clips clamp the rotating plate 12 through magnetic force to prevent the rotating plate 12 from shaking and causing the locking rod 211 to be separated from the locking hole 121.

[0032] In order to strengthen the fixation between the insertion rod 212 and the insertion hole 122, the second fixing component 2 includes an insertion fixing plate 23. When the insertion rod 212 is inserted into the insertion hole 122, the insertion fixing plate 23 is sleeved on the insertion rod 212 to prevent the rotating plate 12 from sliding along the insertion rod 212 when the elevator is vibrating, thereby affecting the locking of the elevator. The insertion rod 212 and the insertion hole 122 are fixed by the insertion fixing plate 23. The insertion fixing plate 23 is two magnetic clips. When the insertion rod 212 is inserted into the insertion hole 122, the two clips are respectively sleeved on both sides of the rotating plate 12. The clips clamp the rotating plate 12 through magnetic force to prevent the rotating plate 12 from sliding along the insertion rod 212 and causing the insertion rod 212 to detach from the insertion hole 122.

[0033] At the same time, when the rotating piece 12 is fixed on the second bracket 21, in order to further limit the rotation of the rotating piece 12, the first fixing component 1 includes a rotating rod 111 and a rotating fixing piece 13. The rotating piece 12 is rotatably installed on the rotating rod 111, and the rotating fixing piece 13 is sleeved on the rotating rod 111 to fix the rotating rod 111 and the rotating piece 12. Specifically, when the rotating piece 12 is completed to be installed and fixed on the second bracket 21, the rotating fixing piece 13 is sleeved on the rotating rod 111 to limit the rotating piece 12 from continuing to rotate, so as to prevent the rotating piece 12 from rotating along the rotating rod 111 when the elevator vibrates, causing the rotating piece 12 to detach from the second bracket 21.

[0034] In order to further limit the rotation of the rotating piece 12 and prevent the rotating piece 12 from being offset when installed and fixed on the second bracket 21, thereby causing the safety door lock to fail and causing the elevator to stop suddenly, the first fixing component 1 also includes a limit block, which is installed on a safety door. When the rotating piece 12 is installed and fixed on the second bracket 21, the limit block clamps the rotating piece 12 at the same time to prevent the rotating piece 12 from continuing to rotate, thereby further preventing the rotating piece 12 from detaching from the second bracket 21.

[0035] In addition, the rotating piece 12 is also provided with a winding strip 123, one end of which is fixed on the rotating piece 12, and the other end of which is tied to the second bracket 21 to fix the rotating piece 12 and the second bracket 21. In this embodiment, the winding strip 123 is made of metal material and has a certain ductility. Specifically, when the winding strip 123 is tied to the second bracket 21, the position of the rotating piece 12 is fixed and can no longer be rotated, thereby ensuring that the rotating piece 12 is fixed on the second bracket 21. At the same time, the rotating piece 12 and the second bracket 21 are made of magnetic materials. When the rotating piece 12 turns to the second bracket 21, the rotating piece 12 and the second bracket 21 attract each other under the action of magnetic force, which helps the rotating piece 12 turn to the second bracket 21, and also strengthens the fixation between the rotating piece 12 and the second bracket 21.

[0036] To sum up, when it is necessary to use the device for preventing the safety door from opening accidentally in this embodiment to lock the safety door of the elevator, first, move the rotating plate 12 so that the rotating plate 12 turns to the second bracket 21, and then the locking rod 211 is locked in the locking hole 121, and the rotating plate 12 continues to rotate. When the insertion rod 212 is aligned with the insertion hole 122, the insertion hole 122 is aligned with the insertion rod 212, and then the insertion fixing plate 23 is sleeved on the insertion rod 212 to fix the insertion hole 122 and the insertion rod 212. This also means that the locking is completed, and the locking fixing plate 22 is sleeved on the locking rod 211 to fix the locking rod 211 and the locking hole 121. Finally, the winding strip 123 is tied to the locking rod 211 and the insertion rod 212 of the second bracket 21 to complete the locking of the safety door.

[0037] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A device for preventing a safety door from accidentally opening, characterized in that: include: A first fixing assembly, the first fixing assembly comprising a first bracket and a rotating piece, the first bracket being fixed to one of the safety doors, and one end of the rotating piece being rotatably mounted on the first bracket; A second fixing assembly, wherein the second fixing assembly comprises a second bracket, the second bracket is fixed to another of the safety doors, and the other end of the rotating piece can be detachably arranged on the second bracket to lock the safety door; The other end of the rotating piece is provided with a clamping hole, and the second bracket includes a clamping rod, and the clamping rod is embedded in the clamping hole to clamp the rotating piece on the second bracket; The other end of the rotating piece is further provided with an insertion hole, and the second bracket further comprises an insertion rod, and the insertion rod is inserted into the insertion hole.

2. The device for preventing a safety door from accidentally opening according to claim 1, characterized in that: The second fixing assembly comprises a clamping fixing plate, and the clamping fixing plate is sleeved on the clamping rod to fix the clamping rod and the clamping hole.

3. The device for preventing a safety door from accidentally opening according to claim 1, characterized in that: The second fixing component includes an interpenetrating fixing plate, and the interpenetrating fixing plate is sleeved on the interpenetrating rod to fix the interpenetrating rod and the interpenetrating hole.

4. The device for preventing a safety door from accidentally opening according to claim 2 or 3, characterized in that: The first fixing assembly comprises a rotating rod, and the rotating piece is rotatably mounted on the rotating rod.

5. The device for preventing a safety door from accidentally opening according to claim 4, characterized in that: The first fixing component further comprises a rotation fixing plate, and the rotation fixing plate is sleeved on the rotation rod to fix the rotation rod and the rotation plate.

6. The device for preventing a safety door from accidentally opening according to claim 5, characterized in that: The first fixing assembly further comprises a limit block, and the limit block is installed on the one of the safety doors to limit the movement of the rotating piece.

7. The device for preventing a safety door from accidentally opening according to claim 1, characterized in that: The rotating piece is also provided with a winding strip, and the winding strip is bound to the second bracket to fix the rotating piece and the second bracket.

8. The device for preventing a safety door from accidentally opening according to claim 7, characterized in that: The rotating piece and the second bracket are made of magnetic materials so that the rotating piece and the second bracket attract each other.

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