A fireproof roller shutter door with easy-to-replace blades

Abstract

A fireproof rolling shutter door with easy-to-replace blades includes a blade cover, a motor cover, a first slide rail, a second slide rail, blades, and a rotating shaft. The outer surface of the rotating shaft is provided with a slot, and the blades are provided with at least two sets of locking mechanisms. The locking mechanism includes a push-in block, a locking key, a locking key base, and a push-in bolt. By adding the locking mechanism, the disassembly of the fireproof rolling shutter door blades during later maintenance can be completed by a single person, achieving the effect of simple blade disassembly.

Description

Technical Field

[0001] This utility model relates to the field of fireproof roller shutter technology, specifically a fireproof roller shutter that is easy to replace the blades. Background Technology

[0002] Fire-resistant roller shutters, as a type of fire-resistant partition, prevent the spread of fire and the escape of dense smoke to safe passageways when the shutters are closed. As an important fire-resistant partition, fire-resistant roller shutters can effectively prevent the spread of fire and protect people during safe evacuation.

[0003] In daily maintenance, fire-resistant rolling shutters require regular inspection of all mechanisms. If the shutter blades are corroded, they need to be disassembled. The disassembly process for traditional fire-resistant rolling shutter blades is cumbersome, dangerous, and requires multiple people to disassemble the entire structure. Therefore, there is room for improvement. Summary of the Invention

[0004] The purpose of this utility model is to provide a fireproof roller shutter door with easy-to-replace blades, so as to solve the problem mentioned in the background art that the disassembly steps are cumbersome and require multiple people to assist in disassembly.

[0005] To address the aforementioned problems, a fireproof roller shutter door with easily replaceable leaf blades is provided. Its features include a leaf blade cover, a motor cover, a first slide rail, a second slide rail, leaf blades, and a rotating shaft. The motor cover is located at one end of the leaf blade cover, and a drive motor is fixedly connected inside the motor cover. The drive end of the drive motor extends into the cavity of the leaf blade cover, and a first transmission gear is provided at the drive end of the drive motor. The first transmission gear and a second transmission gear are connected by a belt. The second transmission gear is located at one end of the rotating shaft, which is located within the cavity of the leaf blade cover and extends through both side walls of the leaf blade cover. The second transmission gear is fixedly connected to the rotating shaft.

[0006] Preferably, the outer surface of the rotating shaft is provided with a slot, and the blade is provided with at least two sets of locking mechanisms. The locking mechanism includes a push-in block, a locking key, a locking key base, and a push-in bolt. The locking key base is fixedly connected to the surface of the blade near the rotating shaft. The blade is provided with a push-in bolt, which is connected to the push-in block. The two end sidewalls of the locking key base are respectively provided with at least one set of push-in guide grooves and the ejection guide groove. The two end sidewalls of the push-in block are respectively provided with push-in guide keys that cooperate with the push-in guide grooves. The two end sidewalls of the locking key are provided with at least one set of ejection guide keys that cooperate with the ejection guide grooves. The ejection guide grooves allow the bottom of the locking key to be pushed upward by the push-in block, and the top of the locking key is ejected so that the locking mechanism is engaged and connected in the slot.

[0007] Preferably, the locking key is provided with an angle near the push-in key to cooperate with the angle of the push-in key for pushing in.

[0008] Preferably, the acute angles of the locking key and the push-in key need to be rounded to ensure service life and smooth operation.

[0009] Preferably, a first slide rail and a second slide rail are fixedly connected to the bottom surfaces of the side walls at both ends of the outer cover of the leaf. The first slide rail and the second slide rail are used in conjunction with the leaf to guide the leaf so that the leaf can move vertically downward.

[0010] Preferably, both the first and second slide rails have an outlet at their bottom to facilitate the removal of the sheet material during subsequent disassembly.

[0011] Preferably, those skilled in the art will know that the sheet structure is existing technology in the field, and therefore will not be described in detail.

[0012] In summary, the beneficial effects of this utility model are:

[0013] This invention modifies the connection between the blades and the rotating shaft, adding a locking mechanism to make disassembly easier, eliminating the need for multiple people to assist in disassembly, achieving the effect of disassembly by one person. Furthermore, the bottom has a retrieval slot, which reduces the difficulty of removing the blades for subsequent maintenance, saving time and manpower. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the outer cover and slide rail of this utility model;

[0016] Figure 3 This is a partial structural diagram of the key mechanism of this utility model without a latching base;

[0017] Figure 4 This is a partial structural diagram of the key mechanism of this utility model in the ejected state;

[0018] Figure 5 This is a partial structural diagram of the key mechanism of this utility model in its retracted state;

[0019] Figure 6 This is a schematic diagram of the overall structure of the key mechanism of this utility model in the ejected state.

[0020] In the diagram: 111, blade cover; 112, first slide rail; 113, second slide rail; 114, motor cover; 121, rotating shaft; 122, slot; 131, drive motor; 132, first transmission gear; 133, second transmission gear; 134, belt; 141, locking key; 142, push-in block; 143, push-in bolt; 144, ejection guide key; 145, push-in guide key; 211, blade; 221, locking key base. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0022] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0023] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 or Figure 2As shown, the device includes a blade cover 111, a motor cover 114, a first slide rail 112, a second slide rail 113, blades 211, and a rotating shaft 121. The blade cover 111 has a motor cover 114 at one end, and a drive motor 131 is fixedly connected inside the motor cover 114. The drive end of the drive motor 131 extends into the cavity of the blade cover 111, and a first transmission gear 132 is provided at the drive end of the drive motor 131. The first transmission gear 132 and a second transmission gear 133 are connected by a belt 134. The second transmission gear 133 is located at one end of the rotating shaft 121, which is located inside the cavity of the blade cover 111 and extends through both side walls of the blade cover 111. The second transmission gear 133 is fixedly connected to the rotating shaft 121.

[0025] Please see Figure 3-6 As shown, a slot 122 is provided on the outer surface of the rotating shaft 121, and at least two sets of locking mechanisms are provided on the blade 211. The locking mechanism includes a push-in block 142, a locking key 141, a locking key base 221, and a push-in bolt 143. The locking key base 221 is fixedly connected to the surface of the blade 211 near the rotating shaft 121. The push-in bolt 143 is provided inside the blade 211 and is connected to the push-in block 142. The two end sidewalls of the locking key base 221 are... The key 141 is provided with at least one set of push-in guide groove and push-out guide groove. Push-in guide keys 145 that cooperate with the push-in guide groove are respectively provided on the side walls at both ends of the push-in block 142. At least one set of push-out guide keys 144 that cooperate with the push-out guide groove are provided on the side walls at both ends of the key 141. The push-out guide groove allows the bottom of the key 141 to be pushed upward by the push-in block 142. After the top of the key 141 is pushed out, the key mechanism is engaged and connected in the slot 122.

[0026] Please see Figure 2-6 As shown, the locking key 141 is provided with an angle near the push-in key to cooperate with the angle of the push-in key for pushing in. The sharp corners of the locking key 141 and the push-in key need to be rounded to ensure service life and smooth operation.

[0027] Please see Figure 1 As shown, the bottom surfaces of the side walls at both ends of the outer cover 111 of the leaf blade are respectively fixedly connected to a first slide rail 112 and a second slide rail 113. The first slide rail 112 and the second slide rail 113 are used in conjunction with the leaf blade 211 to guide the leaf blade 211 so that the leaf blade 211 can move vertically downward. The bottom of the first slide rail 112 and the second slide rail 113 are provided with a disassembly port for the subsequent disassembly of the leaf blade 211 and removal of the leaf blade 211.

[0028] In this embodiment, a fireproof roller shutter door with easy-to-replace leaf blades 211 is used. When installing leaf blades 211, the leaf blades 211 are pushed into the first slide rail 112 and the second slide rail 113 through the notches below the first slide rail 112 and the second slide rail 113. The leaf blades 211 are pulled upward, so that the top of the leaf blades 211 is close to the preset installation position. The locking mechanism is inserted into the slot 122 of the rotating shaft 121. The push-in bolt 143 is rotated with a tool, so that the push-in bolt 143 rotates and its own thread structure pushes the push-in block 142 close to the axis of the rotating shaft 121. When the push-in block 142 is close to the axis of the rotating shaft 121, the inclined surface of the push-in block 142 pushes the locking key 141 upward, so that the locking key 141 is ejected and the locking key structure is fixedly connected to the rotating shaft 121, thus completing the installation of leaf blades 211.

[0029] When a fire occurs, the alarm mechanism starts the drive motor 131. The drive motor 131 rotates, and the first transmission gear 132 installed on the drive end of the drive motor 131 drives the belt to move, causing the second transmission gear 133 to move. The rotation of the second transmission gear 133 drives the rotating shaft 121 and the blades 211 on the rotating shaft 121 to move downward along the first slide rail 112 and the second slide rail 113, thus completing the opening of the fireproof roller shutter door.

[0030] When the fire alarm is cleared, the alarm mechanism causes the drive motor 131 to start working. The drive motor 131 rotates in reverse, and the first transmission gear 132 installed on the drive end of the drive motor 131 drives the belt to move in reverse, causing the second transmission gear 133 to move in reverse. The rotation of the second transmission gear 133 drives the rotating shaft 121 and the blades 211 on the rotating shaft 121 to move upward along the first slide rail 112 and the second slide rail 113, completing the rewinding of the blades 211 of the fireproof roller shutter door.

[0031] When maintenance is required on the blade 211, the blade 211 must be disassembled as a whole. Using a tool, the push-in bolt 143 is rotated in the opposite direction, causing the push-in bolt 143 to drive the push-in block 142 away from the axis of the rotating shaft 121. After the push-in block 142 retracts, the locking key 141 retracts due to gravity, breaking the original fixed connection. The blade 211 can then be removed from the rotating shaft 121. Finally, the blade 211 is removed from the notch at the bottom of the first slide rail 112 and the second slide rail 113, thus completing the disassembly of the blade 211. This reduces the difficulty and time cost of later maintenance, and the blade 211 can be disassembled by a single person.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fireproof roller shutter door with easily replaceable leaf blades, characterized in that, The device includes a blade cover (111), a motor cover (114), a first slide rail (112), a second slide rail (113), blades (211), a rotating shaft (121), and a second transmission gear (133). One end of the blade cover (111) is provided with a motor cover (114). A drive motor (131) is fixedly connected inside the motor cover (114). The drive end of the drive motor (131) extends into the cavity of the blade cover (111), and the drive end of the drive motor (131) is provided with a first transmission gear (132). The first transmission gear (132) and the second transmission gear (133) are connected by a belt (134). The second transmission gear (133) is located at one end of the rotating shaft (121), which is located inside the cavity of the blade cover (111). The second transmission gear (133) is fixedly connected to the rotating shaft (121).

2. A fireproof roller shutter door with easily replaceable leaf blades as described in claim 1, characterized in that, The outer surface of the rotating shaft (121) is provided with a slot (122), and the blade (211) is provided with at least two sets of key mechanisms. The key mechanism includes a push-in block (142), a key (141), a key base (221) and a push-in bolt (143). The key base (221) is fixedly connected to the surface of the blade (211) near the rotating shaft (121). The blade (211) is provided with a push-in bolt (143), which is connected to the push-in block (142). The key base (221) is provided with at least one set of push-in guide groove and one set of ejection guide groove on its two end sidewalls. The push-in guide key (145) is provided on the two end sidewalls of the push-in block (142), and the key (141) is provided with at least one set of ejection guide key (144).

3. A fireproof roller shutter door with easily replaceable leaf blades as described in claim 2, characterized in that, The push-in guide key (145) cooperates with the push-in guide groove, and the ejection guide key (144) cooperates with the ejection guide groove. The ejection guide groove enables the bottom of the locking key (141) to be pushed upward by the push-in block (142). After the top of the locking key (141) is ejected, it engages with the locking groove (122).

4. A fireproof roller shutter door with easily replaceable leaf blades as described in claim 1, characterized in that, The bottom surfaces of the side walls at both ends of the outer cover (111) of the leaf blade are respectively fixedly connected to a first slide rail (112) and a second slide rail (113).

Images