Safety protection door of lifting platform

Abstract

The utility model discloses a safety protection door of a lifting platform, which relates to the field of safety protection equipment, and adopts the technical scheme that the safety protection door comprises two parallel upright posts, a movable door is rotationally arranged on one upright post, an automatic lock is fixedly arranged in the middle of the other upright post, and the movable end of the movable door is detachably connected with the upright post through the automatic lock; the automatic lock comprises a U-shaped lock body, the opening end of the lock body faces the movable door, the two ends of the opening end of the lock body are each rotationally provided with a limiting block, and the lower end of each limiting block extends into an opening of the lock body. A lock catch is fixedly arranged in the middle of the movable end of the movable door, and when the movable door is closed, the lock catch is inserted into the lock body. The automatic door has the advantages that the automatic lock and the microswitch ensure that the door is reliably closed, the risk that personnel enter the door accidentally is reduced, the safety in the feed production process is improved, the accident occurrence probability is reduced, and powerful guarantee is provided for safety of workers and equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the safety protection equipment field, especially a kind of lift platform safety protection door. BACKGROUND

[0002] In feed production company, lift platform is one of indispensable equipment, is widely used in raw material handling, finished product loading and unloading and equipment maintenance etc.

[0003] However, the existing lift platform exposes many security risks under the feed production environment, the entrance of traditional lift platform is not provided with safety protection door, and accidental accidents can easily occur. In order to improve the safety in production process, simple railings or door latches are set at the entrance of lift platform in workshop, but due to fast work rhythm, large personnel flow, staff may forget to close or not correctly lock the entrance protection door in haste, so that the risk of personnel inadvertently entering the lift platform work area is greatly increased. At the same time, due to the lack of effective warning function, the surrounding staff can not clearly judge the running state of the lift platform, and may approach the danger area unknowingly. UTILITY MODEL CONTENT

[0004] In view of the above technical problems, the utility model provides a lift platform safety protection door.

[0005] Its technical scheme is that two parallel columns are provided, one of which is provided with a movable door rotatingly, and an automatic lock is fixedly arranged in the middle of the other column, and the movable end of the movable door is detachably connected with the column through the automatic lock;

[0006] The automatic lock comprises a U-shaped lock body, the open end of the lock body faces the movable door, and one limiting block is rotatably arranged at each end of the open end of the lock body, and the lower end of each limiting block extends into the opening of the lock body;

[0007] The movable end of the movable door is fixedly provided with a lock catch, and when the movable door is closed, the lock catch is inserted into the lock body.

[0008] Preferably, two electromagnets are further arranged in the lock body, and each electromagnet corresponds to one limiting block.

[0009] Preferably, a proximity sensor is arranged below the lift platform, and the proximity sensor and the electromagnet form a control loop.

[0010] Preferably, a microswitch is fixedly arranged on the column above the automatic lock, and when the movable door is closed, the movable door abuts against the driving part of the microswitch.

[0011] Preferably, a warning light is fixedly arranged on the stand column at one side of the micro switch, and the warning light and the micro switch form a control loop.

[0012] Preferably, a mounting plate is fixedly arranged at a lower end of the stand column, and a mounting hole is arranged on a plate body of the mounting plate.

[0013] The beneficial effects brought by the technical scheme of the embodiment of the utility model are that the automatic lock and the micro switch ensure that the door is reliably closed, reduce the risk of personnel accidentally entering, improve the safety in the feed production process, reduce the probability of accidents, and provide strong protection for the safety of staff and equipment; the warning light directly displays the running state, effectively reminds surrounding personnel, and avoids approaching the dangerous area. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model discloses an overall structure schematic diagram of the embodiment Figure 1 .

[0015] Figure 2 The utility model discloses an overall structure schematic diagram of the embodiment Figure 2 .

[0016] Figure 3 It is the stand column and automatic lock structure schematic diagram of the embodiment of the utility model.

[0017] Figure 4 It is the automatic lock structure schematic diagram of the embodiment of the utility model.

[0018] Figure 5 It is the lock body internal structure schematic diagram of the automatic lock of the embodiment of the utility model.

[0019] Among them, the sign is: 1, stand column;2, movable door;3, automatic lock;4, lock body;5, limit block;6, lock catch;7, electromagnet;8, micro switch;9, warning light;10, mounting plate;11, mounting hole. DETAILED DESCRIPTION

[0020] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is combined with the drawing and embodiment, and the utility model is further detailedly explained. Of course, the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0021] It should be noted that, in the case of no conflict, the embodiments in the utility model creation and the features in the embodiments can be combined with each other.

[0022] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0023] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0024] Embodiment 1: see Figures 1 to 5 The utility model provides a kind of lift platform safety protection door, including two parallelly arranged uprights 1, one of which is rotatably arranged movable door 2 on one upright 1, and the middle part of another upright 1 is fixedly arranged automatic lock 3, and the movable end of movable door 2 is detachably connected with upright 1 by automatic lock 3;

[0025] Automatic lock 3 includes the lock body 4 of U shape, and the opening end of lock body 4 is towards movable door 2, and one limiting block 5 is rotatably arranged at the both ends of the opening end of lock body 4, and the lower end of each limiting block 5 extends into the opening of lock body 4;

[0026] The connecting place of each limiting block 5 and lock body 4 is respectively provided with a torsion spring, and the lower end of limiting block 5 is always in the opening of lock body 4 by torsion spring, and limiting block 5 is also provided with limiting platform on lock body 4, and the upper end of limiting block 5 is abutted with limiting platform, and under the action of limiting platform, when lock catch 6 is inserted into lock body 4, lock catch 6 cannot be taken out from lock body 4 without exerting external force;

[0027] The middle part of the movable end of movable door 2 is fixedly arranged lock catch 6, and when movable door 2 is closed, lock catch 6 is inserted into lock body 4.

[0028] Two electromagnets 7 are arranged in the lock body 4, and each electromagnet 7 corresponds to one of the limit blocks 5.

[0029] When the electromagnets 7 are powered, the electromagnets 7 attract the limit blocks 5, and the lower end of the limit blocks 5 rotates into the lock body 4, at which time the lock catch 6 is easily removed from the lock body 4.

[0030] A proximity sensor is arranged below the lifting platform, and the proximity sensor and the electromagnets 7 form a control loop.

[0031] When the proximity sensor detects that the lifting platform has descended to a specified position, the proximity sensor controls the electromagnets 7 to be powered, at which time the electromagnets 7 attract the limit blocks 5, and the lower end of the limit blocks 5 rotates into the lock body 4, and the user can rotate the movable door 2.

[0032] A micro switch 8 is fixedly arranged on the upright column 1 above the automatic lock 3, and when the movable door 2 is closed, the movable door 2 abuts against the driving component of the micro switch 8.

[0033] A warning light 9 is fixedly arranged on the upright column 1 at one side of the micro switch 8, and the warning light 9 and the micro switch 8 form a control loop.

[0034] When the lifting platform is ready to operate, the operator closes the movable door 2, and during the closing process, the movable door 2 gradually approaches the position of the automatic lock 3 on the upright column 1, and when the movable door 2 is completely closed, the movable door 2 abuts against the driving component of the micro switch 8 on the upright column 1 above the automatic lock 3, the micro switch 8 is triggered, and the warning light 9 automatically turns off or emits a constant green light.

[0035] When the movable door 2 is opened, the driving component of the micro switch 8 loses the abutment of the movable door 2, and the state of the micro switch 8 changes, at which time the warning light 9 emits a red glow or flashes, which serves as a strong warning to remind the operator and surrounding personnel to pay attention to safety and avoid approaching the dangerous area of the lifting platform.

[0036] The flashing light can more effectively attract people's attention, so that people are aware of potential safety risks at the first time, and thus take appropriate preventive measures to prevent accidents, whether in equipment maintenance, cargo loading and unloading, or daily operation, this warning system can provide strong protection for the safe operation of the lifting platform.

[0037] The lower end of the upright column 1 is fixedly provided with a mounting plate 10, and the plate body of the mounting plate 10 is provided with a mounting hole 11.

[0038] The utility model discloses when using, when the lifting platform prepares operation, operating personnel will close movable door 2, movable door 2 is in the closing process, gradually close to the automatic lock 3 position on the stand 1, when movable door 2 is completely closed, movable door 2 and the drive component of micro -switch 8 on the stand 1 above automatic lock 3 abut, micro -switch 8 is triggered, warning light 9 automatic extinguish or always bright green light.

[0039] When movable door 2 opens, the drive component of micro -switch 8 loses the abutment of movable door 2, and the state of micro -switch 8 changes, at this time, warning light 9 shines red light or flashes, plays the strong warning effect, reminds operating personnel and surrounding personnel to pay attention to safety, avoids the dangerous area of approaching the lifting platform.

[0040] Example 2: on the basis of example 1, one stand 1 is arranged with electric push rod, the fixed part of electric push rod is rotatably connected with the stand, the telescopic part of electric push rod is rotatably connected with movable door 2, when the proximity sensor detects that the lifting platform drops to the specified position, the proximity sensor controls the electromagnetic iron 7 to be electrified, at this time, the electromagnetic iron 7 adsorbs the limit block 5, and the lower end of limit block 5 rotates into the lock body 4, and the electric push rod contracts, and movable door 2 is automatically opened.

[0041] When needing to close movable door 2, just control the electric push rod to extend, and the automatic closure of movable door 2 can be realized.

[0042] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.

Claims

1. A safety shield door for an elevator platform, characterized in that The utility model provides a kind of automatic lock, including two parallel setting columns (1), one of the column (1) is rotatably arranged movable door (2), the middle part of another column (1) is fixedly arranged automatic lock (3), the movable end of the movable door (2) is detachably connected with the column (1) by the automatic lock (3); The automatic lock (3) includes a U-shaped lock body (4), the opening end of the lock body (4) is towards the movable door (2), the opening end of the lock body (4) is rotatably arranged with a limiting block (5) at both ends, the lower end of each limiting block (5) extends into the opening of the lock body (4); The movable end of the movable door (2) is fixedly arranged with a lock catch (6), when the movable door (2) is closed, the lock catch (6) is inserted into the lock body (4).

2. The safety shield door for an elevator platform according to claim 1, characterized in that The lock body (4) is further provided with two electromagnets (7), each electromagnet (7) corresponds to one of the limiting blocks (5).

3. The safety shield door for an elevator hoistway according to claim 2, characterized in that A proximity sensor is arranged below the lifting platform, and the proximity sensor and the electromagnet (7) form a control loop.

4. The safety shield door for an elevator hoistway according to claim 1, characterized in that A microswitch (8) is fixedly arranged on the column (1) above the automatic lock (3), when the movable door (2) is closed, the movable door (2) abuts against the driving part of the microswitch (8).

5. The safety shield door for an elevator hoistway according to claim 4, characterized in that A warning light (9) is fixedly arranged on the column (1) on one side of the microswitch (8), and the warning light (9) and the microswitch (8) form a control loop.

6. The safety door for an elevator platform as set forth in claim 1, wherein The lower end of the column (1) is fixedly arranged with a mounting plate (10), and the plate body of the mounting plate (10) is provided with a mounting hole (11).

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