Electric safety door capable of being opened and closed manually in power failure and fault states

Abstract

The utility model discloses an electric safety door capable of being opened and closed manually in power failure and fault states, which relates to the technical field of electric safety doors and comprises a top plate, a safety door is hinged to the front end of the top plate, and a connecting block is fixedly connected to the back of the safety door. A gear set box is fixedly arranged at the position, close to one end, of the lower surface of the top plate, a gear set is arranged in the gear set box, a motor and a lead screw are fixedly arranged at the front end of the gear set box, a guide sliding block is arranged on the outer side of the lead screw, and an opening is formed in the guide sliding block. A nut is slidably connected to the opening of the guide sliding block, an air cylinder is fixedly arranged at the lower end of the guide sliding block, and the output end of the air cylinder penetrates through the side wall, located at the opening, of the guide sliding block and is fixedly connected with the nut. And if people are on the inner side of the electrically operated gate and cannot come out in time, unsafety is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of electric safety doors, in particular to an electric safety door which can be opened and closed manually in power failure and fault conditions. Background Art

[0002] The utility model discloses an electric safety door which can be opened and closed manually in the state of power failure and fault, and has a backup manual switch function.

[0003] The existing electric door is opened and closed by setting a motor and a series of transmission mechanisms, such as the motor and reducer, gear set, pulley set, screw nut pair, swing arm connecting rod and other intermediate links. Although this electric mode has a manual disengagement of the motor side clamping mechanism, the door cannot be opened in the case of power outage and fault conditions. If a person is inside the electric door and cannot get out in time, it will cause unsafe conditions. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an electric safety door that can be opened and closed manually in a power outage or fault state, solving the problem that the electric door in the prior art cannot be opened in a power outage or fault state, and if a person is inside the electric door and cannot get out in time, it will cause an unsafe problem.

[0005] To achieve the above-mentioned purpose, the utility model proposes an electric safety door that can be manually opened and closed in power outage and fault conditions, comprising: a top plate, a safety door is hinged at the front end of the top plate, a connecting block is fixedly connected to the back of the safety door, a gear set box is fixedly arranged on the lower surface of the top plate and near one end, a gear set is arranged inside the gear set box, a motor and a screw rod are fixedly arranged at the front end of the gear set box, a guide slider is arranged on the outer side of the screw rod, an opening is arranged on the guide slider, a nut is slidably connected to the guide slider at the opening, a cylinder is fixedly arranged at the lower end of the guide slider, the output end of the cylinder passes through the side wall of the guide slider at the opening and is fixedly connected to the nut, the nut can be meshed with the screw rod, a swing arm connecting rod is rotatably connected to one side of the guide slider, and the other end of the swing arm connecting rod is rotatably connected to the connecting block.

[0006] As a further solution of the utility model: side panels are fixedly connected to both sides of the lower end of the top plate, and a handle is fixedly connected to the outer side surface of the safety door.

[0007] As a further solution of the utility model: a connecting block is symmetrically fixedly connected to the back of the safety door near the upper end, and a fixed end of a gas spring is rotatably connected to the side of the side panel near the lower end, and the piston rod of the gas spring is rotatably connected to the connecting block.

[0008] As a further solution of the utility model: the output shaft of the motor passes through one side of the gear group housing and is fixedly connected to one of the gears inside the gear group housing, the gear fixedly connected to the output end of the motor is meshed with another gear, and the end face of the other gear is fixedly connected to a screw rod, which passes through one side of the gear group housing.

[0009] As a further solution of the utility model: a limit block is fixedly connected to the lower surface of the top plate and close to the front end, and one end of the screw rod away from the gear set housing is rotatably connected to the limit block.

[0010] As a further solution of the utility model: one side of the limit block is fixedly connected to the limit column, the other end of the limit column is fixedly connected to the gear set housing, and the outer side of the limit column is slidably connected to the guide slider.

[0011] As a further solution of the utility model: the screw rod passes through the opening.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In order to prevent the safety door from being unable to open due to power outages and faults after it is opened, when the staff enters the equipment and closes the safety door, the cylinder is started, the output end of the cylinder retracts, the nut disengages from the lead screw, and when the safety door rotates, the guide slider and nut are driven to move through the swing arm connecting rod. At this time, the nut is not engaged with the lead screw and can move. At this time, the safety door can be pushed open inside the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0016] Figure 3 It is an enlarged view of part A of the utility model.

[0017] In the figure: 1. Safety door; 2. Top plate; 3. Handle; 4. Side plate; 5. Gas spring; 6. Connecting block; 7. Gear unit housing; 8. Motor; 9. Screw rod; 10. Cylinder; 11. Guide slide block; 12. Nut; 13. Limit column; 14. Limit block; 15. Swing arm connecting rod. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3 As shown, an electric safety door that can be manually opened and closed in power outage and fault conditions includes: a top plate 2, side plates 4 are fixedly connected to the lower ends of the top plate 2, a safety door 1 is hinged at the front end of the top plate 2, and a handle 3 is fixedly connected to the outer side of the safety door 1.

[0020] A connecting block 6 is symmetrically fixedly connected to the back of the safety door 1 near the upper end, and a fixed end of a gas spring 5 is rotatably connected to the side of the side panel 4 near the lower end, and the piston rod of the gas spring 5 is rotatably connected to the connecting block 6.

[0021] The staff can pull the handle 3 to drive the safety door 1 to rotate upward at the hinge fulcrum to open the safety door 1. During the opening process of the safety door 1, the piston rod of the gas spring 5 extends to assist the safety door 1 in opening.

[0022] A gear set housing 7 is fixedly provided on the lower surface of the top plate 2 and near one end, a gear set is provided inside the gear set housing 7, a motor 8 is fixedly provided at the front end of the gear set housing 7, and an output shaft of the motor 8 passes through one side of the gear set housing 7 and is fixedly connected to one of the gears inside the gear set housing 7.

[0023] The gear fixedly connected to the output end of the motor 8 is meshed with another gear, and a screw rod 9 is fixedly connected to the end face of the other gear, and the screw rod 9 passes through one side of the gear set housing 7.

[0024] A limit block 14 is fixedly connected to the lower surface of the top plate 2 near the front end, and one end of the screw rod 9 away from the gear set housing 7 is rotatably connected to the limit block 14 .

[0025] The motor 8 is started, and the output end of the motor 8 rotates, and the screw rod 9 rotates through the cooperation of the gear set inside the gear set housing 7.

[0026] One side of the limit block 14 is fixedly connected to the limit column 13 , the other end of the limit column 13 is fixedly connected to the gear set housing 7 , and the outer side of the limit column 13 is slidably connected to the guide slider 11 .

[0027] The guide slider 11 is provided with an opening, and the screw rod 9 passes through the opening. The guide slider 11 is slidably connected with a nut 12 at the opening. A cylinder 10 is fixedly provided at the lower end of the guide slider 11. The output end of the cylinder 10 passes through the side wall of the guide slider 11 at the opening and is fixedly connected with the nut 12. The nut 12 can be meshed and connected with the screw rod 9.

[0028] One side of the guide sliding block 11 is rotatably connected to a swing arm connecting rod 15 , and the other end of the swing arm connecting rod 15 is rotatably connected to the connecting block 6 .

[0029] Working principle:

[0030] Start the cylinder 10, and the output end of the cylinder 10 extends out to lift the nut 12, so that the nut 12 is engaged with the screw 9, and the motor 8 is started. The output end of the motor 8 rotates, and the screw 9 rotates through the mutual cooperation of the gear group inside the gear group housing 7, so that the nut 12 makes a linear motion in the horizontal direction. The nut 12 drives the guide slider 11 and the swing arm connecting rod 15 to make a linear motion in the horizontal direction as a whole. The swing arm connecting rod 15 moves toward the direction close to the safety door 1, and gradually opens the safety door 1. In the process of opening the safety door 1, the piston rod of the gas spring 5 extends out to assist the safety door 1 to open, and the staff enters the interior of the equipment and starts the motor 8 again, so that the swing arm connecting rod 15 moves toward the direction away from the safety door 1, and gradually closes the safety door 1.

[0031] In order to prevent the safety door 1 from being unable to be opened due to power outages and faults after it is opened, when the staff enters the equipment and closes the safety door 1, the cylinder 10 is started, the output end of the cylinder 10 is retracted, and the nut 12 is disengaged from the screw rod 9. When the safety door 1 rotates, the guide slider 11 and the nut 12 are driven to move through the swing arm connecting rod 15. At this time, the nut 12 is not engaged with the screw rod 9 and can move. At this time, the safety door 1 can be pushed open inside the equipment.

[0032] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, as well as a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 an indirect connection 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 the present invention can be understood according to specific circumstances.

[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An electric safety door that can be opened and closed manually in power outage and fault conditions, characterized in that: include: A top plate (2), a safety door (1) is hingedly connected to the front end of the top plate (2), a connecting block (6) is fixedly connected to the back of the safety door (1), a gear set housing (7) is fixedly arranged on the lower surface of the top plate (2) and near one end, a gear set is arranged inside the gear set housing (7), a motor (8) and a screw rod (9) are fixedly arranged at the front end of the gear set housing (7), a guide slider (11) is arranged on the outer side of the screw rod (9), and an opening is arranged on the guide slider (11), The guide slider (11) is slidably connected to a nut (12) at the opening, a cylinder (10) is fixedly arranged at the lower end of the guide slider (11), an output end of the cylinder (10) passes through the side wall of the guide slider (11) at the opening and is fixedly connected to the nut (12), the nut (12) can be meshed and connected with the screw rod (9), one side of the guide slider (11) is rotatably connected to a swing arm connecting rod (15), and the other end of the swing arm connecting rod (15) is rotatably connected to the connecting block (6).

2. The electric safety door that can be opened and closed manually in power outage and fault conditions according to claim 1 is characterized in that: Side plates (4) are fixedly connected to both sides of the lower end of the top plate (2), and a handle (3) is fixedly connected to the outer side surface of the safety door (1).

3. The electric safety door that can be opened and closed manually in power outage and fault conditions according to claim 2 is characterized in that: A connecting block (6) is symmetrically fixedly connected to the back of the safety door (1) and near the upper end, and a fixed end of a gas spring (5) is rotatably connected to the side of the side plate (4) and near the lower end, and a piston rod of the gas spring (5) is rotatably connected to the connecting block (6).

4. The electric safety door that can be opened and closed manually in power outage and fault conditions according to claim 1 is characterized in that: The output shaft of the motor (8) passes through one side of the gear set housing (7) and is fixedly connected to one of the gears inside the gear set housing (7); the gear fixedly connected to the output end of the motor (8) is meshed with another gear; the end face of the other gear is fixedly connected to a lead screw (9); the lead screw (9) passes through one side of the gear set housing (7).

5. The electric safety door that can be opened and closed manually in power outage and fault conditions according to claim 1 is characterized in that: A limit block (14) is fixedly connected to the lower surface of the top plate (2) and close to the front end, and one end of the screw rod (9) away from the gear set housing (7) is rotatably connected to the limit block (14).

6. The electric safety door that can be opened and closed manually in power outage and fault conditions according to claim 5, characterized in that: One side of the limit block (14) is fixedly connected to the limit column (13), the other end of the limit column (13) is fixedly connected to the gear set housing (7), and the outer side of the limit column (13) is slidably connected to the guide slider (11).

7. The electric safety door that can be opened and closed manually in power outage and fault conditions according to claim 1 is characterized in that: The screw rod (9) passes through the opening.

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