A magnetic pole type flexible door anti-falling device

Abstract

The present invention discloses a magnetic pole type flexible door anti-falling device, which includes a rear anti-falling beam, a magnet protection mechanism, magnets, a retaining pin, a front anti-falling beam and a sleeve; there are two sets of the magnet protection mechanisms, which are respectively arranged at the front end of the rear anti-falling beam and the rear end of the front anti-falling beam; there are two magnets, which are respectively arranged in the corresponding magnet protection mechanisms, and the opposite surfaces of the two magnets are arranged with the same poles facing each other; the rear end of the rear anti-falling beam is arranged on a column; both ends of the sleeve are respectively sleeved on the rear anti-falling beam and the front anti-falling beam; the retaining pin is inserted into the sleeve and the front anti-falling beam. The present invention can avoid the damage to the anti-falling device caused by the impact generated by collision, and at the same time can achieve unmanned operation when the flexible door is raised.

Description

Technical Field

[0001] The invention relates to the safety technology of flexible doors, and more particularly to a magnetic pole type flexible door anti-falling device. Background Art

[0002] Flexible doors in large workshops usually use anti-fall rods as a safety protection measure. Currently, the common anti-fall devices generally face the problem of inconvenient operation: after the flexible door is raised, manual operation is required to change the anti-fall device from an idle state to a working state, and the anti-fall device is set at a high position, so the operators may face high-altitude operations, which increases the risk of operations.

[0003] At the same time, due to its heavy weight, the impact caused by collision can easily damage the twist shaft, resulting in the service life of this type of device being usually short. Summary of the invention

[0004] In view of the above-mentioned defects existing in the prior art, the object of the present invention is to provide a magnetic pole type flexible door anti-falling device, which can avoid the impact caused by collision from causing damage to the anti-falling device, and at the same time can realize unmanned operation when the flexible door is raised.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A magnetic pole type flexible door anti-falling device, comprising a rear anti-falling beam, a magnet protection mechanism, a magnet, a latch, a front anti-falling beam and a sleeve;

[0007] The magnet protection mechanism has two sets, which are respectively arranged at the front end of the rear anti-falling beam and the rear end of the front anti-falling beam;

[0008] There are two magnets, which are respectively arranged in the corresponding magnet protection mechanisms, and the two magnets have opposite poles facing each other;

[0009] The rear end of the rear anti-fall beam is arranged on the column;

[0010] The two ends of the sleeve are respectively mounted on the rear anti-falling beam and the front anti-falling beam;

[0011] The bayonet is inserted into the sleeve and the front anti-fall beam.

[0012] Preferably, the rear anti-fall beam and the front anti-fall beam are both I-beams or H-beams.

[0013] Preferably, the rear end of the rear anti-fall beam is welded to the column;

[0014] The rear end of the sleeve is welded to the middle position of the outer side surface of the rear anti-falling beam, and the front end is connected to the front anti-falling beam through the bayonet.

[0015] Preferably, a rib plate is installed between the rear anti-falling beam and the column.

[0016] Preferably, the magnet is a rectangular ring-shaped ferrite magnet.

[0017] Preferably, the magnet protection mechanism includes a bottom plate and a protection frame;

[0018] The bottom plate is welded to the front end of the rear anti-falling beam and the rear end of the front anti-falling beam;

[0019] The magnet is bolted to the bottom plate, and the protection frame covers the outside of the magnet and is welded to the bottom plate.

[0020] Preferably, the thickness of the protection frame is greater than the thickness of the magnet;

[0021] The distance between the inner wall of the protection frame and the outer side of the magnet is greater than or equal to 5 mm.

[0022] Preferably, waist-shaped holes are provided at opposite positions on the sleeve and the front anti-falling beam;

[0023] The pin is inserted into the waist-shaped hole, and the lower end of the pin is set in a hook shape adapted to the waist-shaped hole.

[0024] Preferably, a slope with an elevation angle of not less than 45° is provided at the front end of the front anti-falling beam;

[0025] Steel plates are installed on the slope.

[0026] Preferably, the sleeve is made of four welded steel plates, and rib plates are installed on the outer side.

[0027] A magnetic pole type flexible door anti-falling device provided by the present invention is used for the safety protection of flexible doors in large workshops. It cancels the existing hinge shaft design, increases the structural strength, can avoid the damage to the device caused by the impact generated by collision, and at the same time, due to the existence of an inclined plate at the end, when the flexible door rises, it can contact the flexible door cross beam, giving the magnetic pole type flexible door anti-falling device a horizontal component force, so that the front anti-falling beam retracts into the sleeve, thereby realizing unmanned operation and ensuring that the switching between idle and working can be realized without human operation; connecting the sleeve and the front anti-falling beam through a pin can be used to ensure that the front anti-falling frame will not pop out of the sleeve when the mutual exclusion action occurs. The special structural design can effectively reduce the damage caused by impact and can realize quick disassembly for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a structural schematic diagram of the magnetic pole type flexible door anti-falling device of the present invention;

[0029] Figure 2It is a schematic structural diagram of the magnet protection mechanism in the magnetic pole type flexible door anti-falling device of the present invention. Among them, (a) is the front view and (b) is the side view;

[0030] Figure 3 It is a schematic structural diagram of the magnet in the magnetic pole type flexible door anti-falling device of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the latch in the magnetic pole type flexible door anti-falling device of the present invention. Among them, (a) is the front view and (b) is the side view;

[0032] Figure 5 It is a schematic structural diagram of the front anti-falling beam in the magnetic pole type flexible door anti-falling device of the present invention. Among them, (a) is the front view and (b) is the top view;

[0033] Figure 6 It is a schematic structural diagram of the sleeve in the magnetic pole type flexible door anti-falling device of the present invention. Among them, (a) is the top view and (b) is the front view;

[0034] Figure 7 It is a schematic diagram of the use state of the magnetic pole type flexible door anti-falling device of the present invention. Specific embodiments

[0035] In order to better understand the above technical solutions of the present invention, the technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0036] Combined with Figure 1 As shown, a magnetic pole type flexible door anti-falling device provided by the present invention includes a rear anti-falling beam 2, a magnet protection mechanism 3, a magnet 4, a latch 5, a front anti-falling beam 7 and a sleeve 8.

[0037] Combined with Figure 2 and Figure 3 As shown, there are two sets of magnet protection mechanisms 3, both of which include a bottom plate 301 and a protection frame 302.

[0038] The bottom plate 301 is correspondingly welded to the front end of the rear anti-falling beam 2 and the rear end of the front anti-falling beam 7.

[0039] There are two magnets 4, both of which are selected as rectangular ring-shaped ferrite magnets, and an opening hole 401 is opened on them. Threaded holes 303 are opened on the bottom plate 301, and the magnet 4 is bolted to the bottom plate 301 through bolts. Considering the welding thermal stress, the bottom plate 301 must be welded to the rear anti-falling beam 2 and the front anti-falling beam 7 before installing the magnet 4. The opposite sides of the two magnets 4 are arranged with the same poles facing each other, and the repulsive force is generated by using the characteristics that the two poles of the magnet 4 are located on both sides, so that the front anti-falling beam 7 can automatically pop out after the flexible door 6 rises.

[0040] The protective frame 302 covers the outside of the magnet 4 and is welded to the bottom plate 301. The thickness of the protective frame 302 must be greater than that of the magnet 4, and there must be a spacing of more than 5 mm between the inner wall of the protective frame 302 and the outer wall of the magnet 4 to prevent the magnet 4 from being damaged by impact.

[0041] Combined with Figure 5 and Figure 6 As shown, the main load-bearing structures of the rear anti-falling beam 2 and the front anti-falling beam 7 are 18# I-beams, and the model can be changed according to on-site requirements or H-beams can be used. The rear end of the rear anti-falling beam 2 is welded to the column 1, and a stiffener plate 9 is installed between the rear anti-falling beam 2 and the column 1 to ensure the connection strength. An inclined surface with an elevation angle of not less than 45° is provided at the front end of the front anti-falling beam 7, and a steel plate 701 is installed on the inclined surface. It is necessary to ensure that before the flexible door 6 rises, the on-site staff checks that the magnetic pole type flexible door anti-falling device of the present invention is intact and can operate normally, and then retracts the retractable sleeve 8 of the front anti-falling beam 7 to the predetermined position. A waist-shaped hole 702 is provided at the top of the front anti-falling beam 7.

[0042] The sleeve 8 is made of four welded steel plates, and a stiffener plate 801 is installed on the outer side. The rear end of the sleeve 8 is welded to the middle position of the outer side of the rear anti-falling beam 2, and a waist-shaped hole 802 corresponding to the position of the waist-shaped hole 702 on the front anti-falling beam 7 is provided at the top of the front end.

[0043] Combined with Figure 4 As shown, the upper end of the pin 5 is provided with a circular stop block 501, and the lower end is provided with a hook shape 502 adapted to the waist-shaped holes 702 and 802 on the front anti-falling beam 7 and the sleeve 8. After the hook shape 502 passes through the waist-shaped holes 702 and 802 and is twisted at any angle, the connection between the front anti-falling beam 7 and the sleeve 8 can be ensured, and the impact is less affected; at the same time, it can be used to ensure that the front anti-falling frame 7 will not pop out of the sleeve 8 when the mutual exclusion effect occurs. The special structural design can effectively reduce the damage caused by impact and can be quickly disassembled for easy maintenance.

[0044] Combined with Figure 7 As shown, when the magnetic pole type flexible door anti-falling device 100 of the present invention is used on site, the following points need to be noted:

[0045] 1) Since the magnetic pole type flexible door anti-falling device 100 of the present invention has a large self-weight, it needs to be installed with an upward tilt of 3 to 5° during rooting;

[0046] 2) When the magnetic pole type flexible door anti-falling device 100 of the present invention is in use and idle, it is necessary to pay attention to protecting the magnet 4 and keep it away from the AC magnetic field to avoid demagnetization;

[0047] 3) If it is impossible to install the column 1 due to working conditions, the rooting position must be the workshop column and cannot be simply welded to the wall surface;

[0048] 4) The magnetic pole type flexible door anti-falling device 100 of the present invention needs to be arranged at both ends of the flexible door 4, and the heights need to be kept consistent.

[0049] Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention and are not used to limit the present invention. As long as within the scope of the essential spirit of the present invention, changes and modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A magnetic pole type flexible door anti-falling device, characterized in that: It includes a rear anti-falling beam, a magnet protection mechanism, a magnet, a pin, a front anti-falling beam and a sleeve; There are two sets of the magnet protection mechanisms, which are respectively arranged at the front end of the rear anti-falling beam and the rear end of the front anti-falling beam; There are two magnets, which are respectively arranged in the corresponding magnet protection mechanisms, and the opposite faces of the two magnets are arranged with the same poles facing each other; The rear end of the rear anti-falling beam is arranged on a column; Both ends of the sleeve are respectively sleeved on the rear anti-falling beam and the front anti-falling beam; The pin is inserted into the sleeve and the front anti-falling beam; The magnet is a rectangular ring ferrite magnet; The magnet protection mechanism includes a bottom plate and a protection frame; The bottom plate is welded to the front end of the rear anti-falling beam and the rear end of the front anti-falling beam; The magnet is bolted to the bottom plate, and the protection frame covers the outside of the magnet and is welded to the bottom plate; The thickness of the protection frame is greater than the thickness of the magnet; The distance between the inner wall of the protection frame and the outer side of the magnet is greater than or equal to 5 mm; An inclined plane with an elevation angle of not less than 45° is provided at the front end of the front anti-falling beam; A steel plate is additionally installed on the inclined plane.

2. The magnetic pole type flexible door anti-falling device according to claim 1, wherein: Both the rear anti-falling beam and the front anti-falling beam are I-beams or H-beams.

3. The magnetic pole type flexible door anti-falling device according to claim 1, characterized in that: The rear end of the rear anti-falling beam is welded to the column; The rear end of the sleeve is welded to the middle position of the outer side of the rear anti-falling beam, and the front end is connected to the front anti-falling beam through the pin.

4. The magnetic pole type flexible door anti-falling device according to claim 2, characterized in that: A rib plate is additionally installed between the rear anti-falling beam and the column; 5. The magnetic pole type flexible door anti-falling device according to claim 3, characterized in that: Waist-shaped holes with opposite positions are provided on both the sleeve and the front anti-falling beam; The pin is inserted into the waist-shaped hole, and the lower end of the pin is set to a hook shape adapted to the waist-shaped hole.

6. The magnetic pole type flexible door anti-falling device according to claim 1, characterized in that: The sleeve is made of four welded steel plates, and rib plates are additionally installed on the outer side.

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