Fireproof door reinforcing mechanism

Abstract

The utility model relates to the technical field of fireproof door reinforcing, in particular to a fireproof door reinforcing mechanism which comprises a first hinge piece, and a plurality of first rotary drums are fixedly connected to the outer surface of the first hinge piece. When the hinge is used, the first hinge piece and the second hinge piece are installed on a door and a door frame respectively, when the door is opened normally, the first hinge piece and the shaft core rotate, an angle is formed between the first hinge piece and the second hinge piece, in the mutual rotation process of the first hinge piece and the second hinge piece, the ball rotates in the rolling groove and rolls in the annular groove, and rolling replaces rotation. In addition, in the mutual rotation process of the first hinge piece and the second hinge piece, the torsional spring deforms, the counter-acting force of the torsional spring hinders door opening to a certain degree, and the situation that the two hinge pieces are abraded aggravated due to the fact that the door is opened too fast is prevented. The stability and safety of the fireproof door during use are guaranteed to a certain extent, and the effect of reinforcing the fireproof door is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire door reinforcing technical field, concretely is a fire door reinforcing mechanism. BACKGROUND

[0002] The fire door reinforcing mechanism refers to the components and devices specially set in the fire door system to enhance the stability and use safety of the fire door, the hinge is the key component connecting the door frame and the door leaf, and the structural design of the hinge will affect the stability and use safety of the fire door, and the hinge capable of reinforcing the fire door needs to maintain good connection during the fire to ensure the close adhesion between the door leaf and the door frame, prevent the door body from falling off or deforming, and make the fire door effectively block the fire and smoke.

[0003] However, the fire door needs to be frequently opened and closed during the daily passage of the cleaning staff and the like without fire, the traditional hinge rotates while bearing, is abraded fast, and the door leaf can be inclined, the door is not smooth to open and close, and the normal use of the fire door can be affected at the critical moment, and serious consequences can be caused. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a fire door reinforcing mechanism to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A fire door reinforcing mechanism, comprising a leaf piece one, a plurality of rotating drums one are fixedly connected to the outer surface of the leaf piece one, shaft cores are rotatably connected to the inner wall of the rotating drums one, rotating drums two are rotatably connected to the outer surface of the shaft cores close to the leaf piece one, a rolling groove is formed in the bottom of the rotating drum one at the top, a ring groove is formed in the top of the rotating drum one at the middle, a rolling groove is formed in the bottom of the rotating drum one at the middle, a ring groove is formed in the top of the rotating drum one at the bottom, ring grooves are formed in the top of the two rotating drums two, rolling grooves are formed in the bottom of the two rotating drums two, rolling balls are slidably connected to the inner wall of the rolling grooves, and rolling balls are slidably connected to the inner wall of the ring grooves.

[0007] Preferably, the rotating drums two are fixedly connected with leaf pieces two on the outer surfaces, and torsional springs are sleeved on the outer surfaces of the shaft cores close to the two ends.

[0008] Preferably, one end of the torsional spring close to the shaft core is fixedly connected with the leaf piece one, and the other end of the torsional spring away from the shaft core is fixedly connected with the leaf piece two.

[0009] Preferably, the leaf piece one and the leaf piece two are fixedly connected with fireproof pads on the sides away from the shaft core, and mounting holes are formed in the leaf piece one, the leaf piece two and the fireproof pads.

[0010] Preferably, the sheet one, the sheet two and the central axis of the shaft core coincide.

[0011] Preferably, the rolling groove is uniformly distributed on the periphery of the shaft core with the central axis of the shaft core as the axis.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The fireproof door reinforcing mechanism, through the setting of the ball, the rolling groove, the ring groove and the torsional spring, when in use, the sheet one and the sheet two are installed on the door and the door frame respectively, when normally opening the door, rotation occurs between the sheet one and the shaft core, and an angle is generated between the sheet one and the sheet two, in the mutual rotation process of the sheet one and the sheet two, the ball rotates in the rolling groove and rolls in the ring groove, the rolling replaces the rotation, the friction generated by the rotation in the process of bearing of the hinge is reduced, thereby the abrasion between the two sheets is reduced, the service life of the sheet can be prolonged, in addition, in the mutual rotation process of the sheet one and the sheet two, the torsional spring is deformed, the reaction force hinders the door opening to a certain extent, the abrasion of the two sheets caused by the door opening too fast is prevented, the above structure setting guarantees the stability and the safety of the fireproof door when in use to a certain extent, the reinforcing effect of the fireproof door is achieved.

[0014] 2. The fireproof door reinforcing mechanism, through the setting of the fireproof pad, when in use, the fireproof pad is located between the sheet and the door or the door frame, when a fire occurs, the fireproof pad can block the fire spread into the fireproof door to a certain extent, thereby the effect of higher safety index is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall schematic view of the utility model;

[0016] Figure 2 It is the sectional view schematic view of the rotating drum one of the utility model;

[0017] Figure 3 It is the sheet one schematic view of the utility model;

[0018] Figure 4 It is the split schematic view of the rotating drum one and the ball of the utility model;

[0019] Figure 5 It is the split schematic view of the sheet one and the fireproof pad of the utility model.

[0020] In the drawing: 1, sheet one;2, rotating drum one;3, shaft core;4, rotating drum two;5, sheet two;6, torsional spring;7, rolling groove;8, ring groove;9, ball;10, fireproof pad;11, mounting hole. DETAILED DESCRIPTION

[0021] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0023] A fireproof door reinforcing mechanism, including leaf piece one 1, a plurality of rotating cylinders one 2 are fixedly connected on the outer surface of leaf piece one 1, the inner wall of rotating cylinder one 2 is rotatably connected with shaft core 3, the outer surface of shaft core 3 close to leaf piece one 1 is rotatably connected with rotating cylinder two 4, the bottom of rotating cylinder one 2 at the top is provided with rolling groove 7, the top of rotating cylinder one 2 at the middle is provided with ring groove 8, the bottom of rotating cylinder one 2 at the middle is provided with rolling groove 7, the top of rotating cylinder one 2 at the bottom is provided with ring groove 8, the top of two rotating cylinder two 4 is provided with ring groove 8, the bottom of two rotating cylinder two 4 is provided with rolling groove 7, the inner wall of rolling groove 7 is slidably connected with ball 9, the inner wall of ring groove 8 is slidably connected with ball 9, when using, leaf piece one 1 and leaf piece two 5 are installed on the door and the door frame respectively, when normally opening the door, rotation occurs between leaf piece one 1 and shaft core 3, angle is generated between leaf piece one 1 and leaf piece two 5, during the mutual rotation of leaf piece one 1 and leaf piece two 5, ball 9 rotates in rolling groove 7 and rolls in ring groove 8, rolling replaces rotation, reduces the friction generated by the rotation of hinge bearing, thereby reducing the wear between two leaf pieces, can prolong the service life of leaf piece, during the daily passage of cleaning staff, the fireproof door needs to be frequently opened and closed, hinge bearing rotates at the same time, wears fast, influences the stability and safety of the use of fireproof door, causes the door leaf to be skewed, the door is not smooth, and the normal use of fireproof door may be affected at critical moment, causes serious consequences, the mechanism replaces rotation with rolling, reduces the wear between two leaf pieces, guarantees the stability and safety of the use of fireproof door, avoids the above problems to a certain extent.

[0024] In the embodiment, preferably, the outer surface of rotating cylinder two 4 is fixedly connected with leaf piece two 5, torsional spring 6 is sleeved on the outer surface close to both ends of shaft core 3, during the mutual rotation of leaf piece one 1 and leaf piece two 5, torsional spring 6 deforms, and its reaction force hinders the door opening to a certain extent, prevents the wear between two leaf pieces from being intensified due to the door opening too fast, thereby reducing the wear and prolonging the service life of leaf piece.

[0025] In the embodiment, preferably, the torsion spring 6 is fixedly connected with the hinge leaf one 1 at one end close to the shaft core 3, and is fixedly connected with the hinge leaf two 5 at the other end away from the shaft core 3. In use, during the mutual rotation of the hinge leaf one 1 and the hinge leaf two 5, the torsion spring 6 is deformed, and the reaction force thereof hinders the opening of the door to a certain extent. When the door is opened too fast, the mutual rotation of the two hinge leaves is too fast, which increases the friction at the contact position of the two hinge leaves. The torsion spring 6 is sleeved on the shaft core 3 and has the two hinge leaves connected at the two ends, respectively, so that pressure can be applied to a certain extent when the door is opened, thereby avoiding the opening of the door too fast, reducing the friction at the contact position of the two hinge leaves, and ensuring the stability and safety of the fireproof door to a certain extent.

[0026] In the embodiment, preferably, the hinge leaf one 1 and the hinge leaf two 5 are fixedly connected with the fireproof pads 10 at the sides away from the shaft core 3. The hinge leaf one 1, the hinge leaf two 5 and the fireproof pads 10 are all provided with mounting holes 11. In use, the hinge leaves one and two are fixed on the door and the door frame by screws passing through the mounting holes 11. The fireproof pads 10 are made of glass fiber cloth material, have good high-temperature resistance, can generally withstand high temperature, have good heat insulation effect and soft texture, are convenient to use, and other components are made of stainless steel material.

[0027] In the embodiment, preferably, the hinge leaf one 1, the hinge leaf two 5 and the shaft core 3 have coinciding central axes. In use, the central axes of the three coincide, thereby ensuring the stability of the hinge during rotation.

[0028] In the embodiment, preferably, the rolling grooves 7 are uniformly distributed around the shaft core 3 with the central axis of the shaft core 3 as the axis. In use, the rolling of the balls 9 in the rolling grooves 7 and the rolling grooves 8 ensures the stable rotation of the two hinge leaves, thereby ensuring the stability of the fireproof door during opening and closing.

[0029] Working principle: In use, the hinge leaf one 1 and the hinge leaf two 5 are installed on the door and the door frame, respectively. During normal opening of the door, the hinge leaf one 1 and the shaft core 3 rotate, and the hinge leaf one 1 and the hinge leaf two 5 produce an angle. During the mutual rotation of the hinge leaf one 1 and the hinge leaf two 5, the balls 9 rotate in the rolling grooves 7 and roll in the rolling grooves 8. The rolling instead of rotation reduces the friction generated by the rotation during the bearing of the hinge, thereby reducing the wear between the two hinge leaves. In addition, during the mutual rotation of the hinge leaf one 1 and the hinge leaf two 5, the torsion spring 6 is deformed, and the reaction force thereof hinders the opening of the door to a certain extent, thereby preventing the wear of the two hinge leaves caused by the opening of the door too fast. The above structure can prolong the service life of the hinge leaves.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fire door reinforcement mechanism, characterized by: Including page piece one (1), the outer surface of page piece one (1) is fixedly connected with several rotating drum one (2), the inner wall of rotating drum one (2) is rotatably connected with shaft core (3), the outer surface of shaft core (3) is rotatably connected with rotating drum two (4) close to page piece one (1), the bottom of rotating drum one (2) at the top is provided with rolling groove (7), the top of rotating drum one (2) at the middle is provided with ring groove (8), the bottom of rotating drum one (2) at the middle is provided with rolling groove (7), the top of rotating drum one (2) at the bottom is provided with ring groove (8), the top of two rotating drum two (4) is provided with ring groove (8), the bottom of two rotating drum two (4) is provided with rolling groove (7), the inner wall of rolling groove (7) is slidably connected with ball (9), the inner wall of ring groove (8) is slidably connected with ball (9).

2. The fire door reinforcement mechanism of claim 1, wherein: The outer surface of rotating drum two (4) is fixedly connected with page piece two (5), and the outer surface of shaft core (3) is sleeved with torsional spring (6) close to both ends thereof.

3. The fire door reinforcement mechanism of claim 2, wherein: The end of torsional spring (6) close to shaft core (3) is fixedly connected with page piece one (1), and the end of torsional spring (6) away from shaft core (3) is fixedly connected with page piece two (5).

4. The fire door reinforcement mechanism of claim 3, wherein: The side away from shaft core (3) of page piece one (1) and page piece two (5) is fixedly connected with fireproof pad (10), and mounting hole (11) is formed in page piece one (1), page piece two (5) and fireproof pad (10).

5. The fire door reinforcing mechanism of claim 3, wherein: The central axis of page piece one (1), page piece two (5) and shaft core (3) coincides.

6. The fire door reinforcing mechanism of claim 2, wherein: Rolling groove (7) is uniformly distributed on the periphery of shaft core (3) with the central axis of shaft core (3) as the axis.

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