TW201912918A - Anti-drop structure of rolling door shaft tube capable of ensuring the safety of a roller door - Google Patents

Abstract

An anti-drop structure of a rolling door shaft tube is provided with a shaft tube in a chassis. One end of the shaft tube is provided with one shaft mounted to one side of the chassis, and another end of the shaft tube is provided with a cover plate. The cover plate is sleevingly connected to a fixing base of a drive gear. At least one engaging groove is provided at a periphery of the fixing base, and a transverse arc groove extends from a bottom side of the engaging groove. A sleeving hole is provided on the cover plate, and at least one knot key is provided at an edge of the sleeving hole. The knot key is correspondingly sleeved by and connected with the engaging groove, and is limited in the transverse arc groove along with rotation of the drive gear, so as to ensure the safety of the roller door.

Description

 Anti-off structure of rolling door shaft tube  

The invention relates to a detachment prevention structure for a roll door shaft tube. The structure of the roll door includes a roll door and a roll screen which are generally used, and a fireproof roll door, a fireproof roll screen and a smoke prevention roll screen used as a fire protection system. By using the anti-drop structure of the invention, the safety of the rolling door can be ensured, the accident of the work safety can be effectively prevented, and the normal operator of the rolling door can be maintained.

According to the general roll door, the range used is very wide, including the general use of the roll door, the roll screen, as well as the fire shutter, fire curtain and smoke screen used as the fire protection system, its configuration is shown in the first figure, mainly The roll door (or roll screen) 13 is driven to be retracted and released by a shaft tube 10 in the upper chassis 1 for positive or negative rotation. The shaft tube 10 is provided with a shaft 101 at one end. The shaft 101 is mounted on the bearing seat 11 on one side of the casing 1 to be supported as a fulcrum for rotation. The other end of the shaft tube 10 is sleeved with the fixing seat 121 of a transmission gear 12, and the periphery of the fixing seat 121 is provided with a plurality of The splicing key 122 is provided with a cover plate 102 at the other end of the shaft tube 10. The cover plate 102 is provided with a set of receiving holes 103. The hole edge of the sleeve hole 103 extends outwardly to form a plurality of card slots 104. The card slot 104 is correspondingly sleeved with the latching key 122. The socket structure has no problem under normal operation, because the length of the shaft tube 10 is several meters long, long-term use or load resistance. When it is increased, the flexible deformation is easily generated, and the socket of the card slot 104 and the fastening key 122 is prone to occur. A safety accident that causes the entire shaft tube 10 to slip directly; especially as a roll door used in a fire protection system, such as a fire shutter, a fire curtain, and a smoke screen, once this happens, especially in a fire, As a result, the roll door (or roll screen) could not be put down properly, and a fire break was formed. As long as the fire spread, the fruit was unimaginable.

In view of the lack of the formula, the inventor of the present invention has finally completed the anti-detachment structure of the rolling door shaft tube of the present invention after numerous research and improvement, that is, the object of the present invention is to provide a method for preventing the rolling of the rolling door shaft sleeve from slipping off. The anti-off structure is used to ensure the safety of the use of the roll door, effectively prevent the occurrence of accidents and the maintenance of the roll door can be normal operators.

In order to achieve the above object of the present invention, the anti-drop structure of the roll door shaft tube of the present invention is provided with a shaft tube in a casing, and one end of the shaft tube is provided with a shaft, and the support shaft is mounted on one side of the frame. The bearing seat is supported as a fulcrum when rotating, and the other end of the shaft tube is provided with a cover plate, and the cover plate is sleeved with a fixing seat of a transmission gear, wherein the periphery of the fixing seat is provided with at least a card slot, the bottom side of the card slot is extended by a transverse arc groove, the cover plate is provided with a set of holes, and the hole edge of the sleeve hole is provided with at least one snap key, the card key and the card The slot corresponds to the socket, and the latching key is limited to the transverse arc groove along with the rotation of the transmission gear.

The cross-sectional width of the transverse arc groove is greater than the cross-sectional width of the card slot.

Another embodiment of the present invention is characterized in that a shaft tube is disposed in a casing, and one end of the shaft tube is provided with a shaft, and the support shaft is mounted on a bearing seat positioned on one side of the casing to support the fulcrum during rotation. The other end of the shaft tube is provided with a cover plate, and the cover plate is sleeved with a fixing seat of a transmission gear, wherein the periphery of the fixing seat is provided with at least one first fastening button and at least one second card. a plurality of through holes are formed between the bottom side of the first engaging key and the transmission gear, and the sealing cover is provided with a set of connecting holes, and the edge of the receiving hole is provided with at least one first card slot and at least a second card slot, the first card key is correspondingly sleeved with the first card slot, the second card key is correspondingly sleeved with the second card slot, and the cover plate is along with the transmission gear The rotation limit is located in the lateral notch.

The width of the transverse notch described above is greater than the thickness of the closure.

1‧‧‧Chassis

10‧‧‧ shaft tube

101‧‧‧ fulcrum

102‧‧‧ cover

103‧‧‧ socket

104‧‧‧ card slot

11‧‧‧ bearing housing

12‧‧‧Transmission gear

121‧‧‧ Fixed seat

122‧‧‧Knot key

13‧‧‧ Rolling door

2‧‧‧Chassis

20‧‧‧ shaft tube

201‧‧‧ shaft

202‧‧‧ cover

203‧‧‧ sockets

204‧‧‧Knot key

205‧‧‧ first card slot

206‧‧‧Second card slot

21‧‧‧ bearing housing

22‧‧‧Transmission gear

221‧‧‧ fixed seat

222‧‧‧ card slot

223‧‧‧transverse curved groove

224‧‧‧First Knot Key

225‧‧‧Second card

226‧‧‧ horizontal gap

23‧‧‧ Rolling door

The first figure is a schematic diagram of a conventional structure.

The second figure is a partial perspective exploded view of a conventional structure.

The third figure is a partial perspective exploded view of the present invention.

The fourth figure is a schematic structural view of the present invention.

The fifth figure is a schematic diagram of the sleeve of the shaft tube and the transmission gear of the present invention.

The sixth figure is a schematic view of the operation of the shaft tube of the present invention.

Figure 7 is a partial perspective exploded view of another embodiment of the present invention.

FIG. 8 is a schematic view showing the sleeve of the shaft tube and the transmission gear fixing seat according to another embodiment of the present invention.

Figure 9 is a schematic view showing the operation of the shaft tube according to another embodiment of the present invention.

Referring to the third to sixth embodiments, an embodiment of the anti-drop structure of the roll door shaft tube of the present invention is provided with a shaft tube 20 disposed in a casing 2, and a shaft 201 is disposed at one end of the shaft tube 20, The support shaft 201 is mounted on a bearing seat 21 positioned on one side of the casing 2 to support the fulcrum when rotating. The other end of the shaft tube 20 is provided with a cover plate 202, and the cover plate 202 and a transmission gear 22 A fixing seat 221 is sleeved, wherein the fixing seat 221 is provided with at least one slot 222 at the periphery thereof, and the bottom side of the slot 222 is extended to a transverse arc groove 223, and the cover plate 202 is provided with a set of holes. 203, the hole edge of the socket 203 is provided with at least one fastening key 204, and the fastening key 204 is correspondingly sleeved with the card slot 222, and the fastening key 204 is limited by the rotation of the transmission gear 22 Located within the transverse arcuate slot 223.

The cross-sectional width of the transverse arcuate groove 223 is greater than the cross-sectional width of the card slot 222, so that the locking key 204 can be inserted into the card slot 222 after the carding key 204 is aligned. In the transverse arcuate groove 223, when the transmission gear 22 rotates, the engaging key 204 is displaced against one side of the transverse arcuate groove 223, and is offset from the position of the card slot 222. So won't come out.

Referring to the fourth and fifth figures, the present invention is composed of the above structure. When the mounting shaft 201 at one end of the shaft tube 20 is mounted, the bearing housing 21 positioned on one side of the chassis 2 is mounted as a fulcrum support during rotation. The cover plate 202 at the other end of the shaft tube 20 is sleeved with the fixing seat 221 of the transmission gear 22, and the engaging key 204 of the shaft tube 20 is firstly fitted into the card slot 222 after the socket is inserted. The splicing key 204 is locked in the lateral arcuate groove 223; when the transmission gear 22 rotates, the splicing key 204 will abut against the side of the transverse arcuate groove 223 as it rotates (eg, 6), staggering the position aligned with the card slot 222, and interlocking the shaft tube 20 to retract or release the roll door 23 (see the fourth figure), so the shaft tube 20 Even if the flexible deformation occurs, the engagement key 204 of the shaft tube 20 does not come out of the card slot 222, so that the safety of the roll door 23 can be ensured, and the accident of the work safety can be effectively prevented. The normal operator of the roll door 23 can also be maintained.

Referring to the seventh, eighth, and ninth embodiments, another embodiment of the present invention is provided with a shaft tube 20 disposed in a casing 2, and a shaft 201 is disposed at one end of the shaft tube 20, and the shaft 201 is mounted. The bearing housing 21 positioned on one side of the chassis 2 is supported as a fulcrum for rotation. The other end of the shaft tube 20 is provided with a cover plate 202, and a sealing seat 202 and a fixing seat 221 of a transmission gear 22 The pedestal 221 is provided with at least one first splicing key 224 and at least one second splicing key 225. The bottom side of the first splicing key 224 and the transmission gear 22 are provided with a horizontal a notch 226, the cover plate 202 is provided with a plurality of receiving holes 203, and the hole edge of the sleeve hole 203 is provided with at least one first card slot 205 and at least one second card slot 206, the first latching key 224 and The first card slot 205 is correspondingly sleeved, and the second card key 225 is correspondingly sleeved with the second card slot 206, and the cover plate 202 is located in the horizontal notch 226 along with the rotation limit of the transmission gear 22. .

The width of the horizontal notch 226 is greater than the thickness of the cover plate 202, so that the first fastening key 224 and the second fastening key 225 are respectively aligned into the first card slot 205. After the two card slots 206, the cover plate 202 can be displaced along the rotation of the transmission gear 22, and is limited to the horizontal notch 226, and the first fastening key 224 and the second fastening key 225 are moved. The position is aligned with the first card slot 205 and the second card slot 206.

Referring to the eighth and ninth embodiments, in another embodiment of the present invention, by the structure of the above structure, the support shaft 201 at one end of the shaft tube 20 is mounted on the bearing housing 21 positioned on one side of the chassis 2 during installation. The cover plate 202 at the other end of the shaft tube 20 is sleeved with the fixing seat 221 of the transmission gear 22, and the first card slot 205 and the second card of the shaft tube 20 are sleeved. After the slot 206 is aligned with the first latching key 224 and the second latching key 225, the cover panel 202 can be limited to the rotation of the transmission gear 22 when the transmission gear 22 rotates. In the horizontal notch 226, the second fastening key 225 abuts against the side of the second card slot 206 (as shown in FIG. 9), and interlocks the shaft tube 20 to retract or release the fireproof roll screen. The cover plate 202 is located in the horizontal notch 226, and the first card slot 205 is offset from the first card key 224 and the second card key 225. Since the shaft tube 20 is not deformed by the flexible seat, the shaft tube 20 does not come out of the fixing seat 221 of the transmission gear 22, so that the volume can be secured. 23 security on the use of effective industrial safety to prevent accidents, but also to maintain the normal volume operator door 23.

In summary, the anti-detachment structure of the rolling door shaft tube of the present invention can effectively solve the lack of the existing formula, and the technical means of the present invention is unprecedented, so the novelty and progressive requirements of the invention patent are specially made. By.

The specific embodiments of the present invention are intended to be illustrative only and not to limit the scope of the present invention to the above embodiments, without departing from the spirit of the invention and the following claims. In the case of various changes made, it is still within the scope of the invention.

Claims (4)

 The anti-drop structure of the rolling door shaft tube is provided with a shaft tube in a casing, and one end of the shaft tube is provided with a shaft, and the support shaft is mounted on a bearing seat positioned on one side of the casing as a pivot point when rotating Supporting, the other end of the shaft tube is provided with a cover plate, and the cover plate is sleeved with a fixing seat of a transmission gear, wherein: the periphery of the fixing seat is provided with at least one card slot, and the bottom of the card slot is extended Connected to a horizontal arcuate groove, the cover plate is provided with a set of connecting holes, and the hole edge of the sleeve hole is provided with at least one snap key, and the snap key is correspondingly sleeved with the card slot, and the snap key is coupled As the transmission gear rotates, it is limited to the transverse arcuate groove.    The anti-drop structure of the roll door shaft tube according to claim 1, wherein the transverse arc groove has a section width greater than a cross-sectional width of the card slot.    The anti-drop structure of the rolling door shaft tube is provided with a shaft tube in a casing, and one end of the shaft tube is provided with a shaft, and the support shaft is mounted on a bearing seat positioned on one side of the casing as a pivot point when rotating Supporting, the other end of the shaft tube is provided with a cover plate, and the cover plate is sleeved with a fixing seat of a transmission gear, wherein the periphery of the fixing seat is provided with at least one first fastening key and at least one a second latching button, a lateral notch is disposed between the bottom side of the first latching key and the transmission gear, and the sealing cover is provided with a set of connecting holes, and the hole edge of the sleeved hole is provided with at least one first card slot And the at least one second card slot, the first card key is correspondingly sleeved with the first card slot, the second card key is correspondingly sleeved with the second card slot, and the cover plate is driven by the transmission The rotation limit of the gear is located in the transverse notch.    The anti-drop structure of the roll door shaft tube according to claim 3, wherein the width of the horizontal notch is greater than the thickness of the cover plate.