CN219262106U

CN219262106U - Fireproof door closer

Info

Publication number: CN219262106U
Application number: CN202320054884.3U
Authority: CN
Inventors: 沈旭东
Original assignee: Landi Technology Tianjin Co ltd
Current assignee: Landi Technology Tianjin Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-27
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a fireproof door closer, which comprises a fireproof door body, wherein one side of the top of the fireproof door body is provided with a door closer body, the door closer body comprises a mounting bottom block, the top end of the mounting bottom block is provided with a connecting square and a connecting plate, the upper end of the connecting plate is provided with a rotating shaft, the outer Zhou Dengchang of the rotating shaft is provided with a plurality of rubber rings, the outer part of the rotating shaft is provided with a lantern ring in contact with the plurality of rubber rings, the outer circumferential surface of the lantern ring is provided with a supporting connecting rod, and an outer supporting plate on the door closer body is sequentially provided with a flame retardant layer, an outer supporting layer, a heat insulation cavity, an inner supporting layer and a rubber layer from outside to inside. The utility model reduces the abrasion generated when the lantern ring rotates on the rotating shaft under the design of the rubber ring, is beneficial to prolonging the service life of the connecting part of the door closer, and simultaneously avoids the high temperature from being transmitted from the outer supporting plate of the door closer to the inside of the door closer body, thereby keeping the normal use of the structure of the door closer body.

Description

Fireproof door closer

Technical Field

The utility model relates to the related technical field of door closers, in particular to a fireproof door closer.

Background

The door closer is a hydraulic device similar to a spring on the door head, can release after being compressed when the door is opened, automatically closes the door, has the function of a spring-like door, and can ensure that the door is accurately and timely closed to an initial position after being opened.

The main effect of the fireproof door closer is that when a fire disaster occurs, the door can be automatically closed, equipment for preventing the fire disaster from spreading can effectively control the occurrence of the fire disaster, the existing door closer has certain defects when in use, firstly, if the door closer is used for a long time, the transmission part is worn, the door closer can be damaged due to long-term wear, certain adverse effects are provided, in addition, the fireproof door is normally closed to prevent the fire disaster from spreading when the fire disaster occurs, the fireproof door is normally controlled by the door closer, the structure of the door closer is various, however, the inner structural members can be damaged due to high temperature after the fire disaster occurs, and the door closer stops working.

Disclosure of Invention

The utility model aims to provide a fireproof door closer for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a prevent fire door closer, includes prevents fire door body, prevent fire door body's top one side is fixed to be provided with the door closer body, the door closer body is including installing the bottom block, the fixed setting in fire door body back terminal surface of installation bottom block, the fixed connection square that is provided with in top of installation bottom block, the fixed even board that is provided with in rear end of connection square, keep away from the terminal fixed surface of connection square on the even board and be provided with the pivot, the outer Zhou Dengchang of pivot is provided with the several rubber ring, the outside of pivot just is provided with the lantern ring with the contact of several rubber ring, the outer peripheral face of lantern ring is provided with the support connecting rod, the one end of keeping away from support connecting rod and lantern ring tie point is provided with the solid fixed ring on the support connecting rod, the inboard on the door closer body is provided with fire-retardant layer, the inboard on fire-retardant layer is provided with the outer supporting layer, the inboard on the outer supporting layer is provided with the insulating layer, the inboard on the insulating layer is provided with the insulating chamber, the inboard in the insulating chamber is provided with the inner supporting layer, the inboard on the inner supporting layer.

Preferably, the flame-retardant layer, the outer supporting layer, the heat insulation cavity, the inner supporting layer and the rubber layer are integrally formed and compositely pressed to form the outer supporting plate of the door closer body.

Preferably, the outer support layer and the inner support layer are made of steel.

Preferably, the inner peripheral wall of the lantern ring is provided with a circular groove which is matched with the rubber ring.

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

1. the rotating shaft, the rubber ring and the lantern ring are arranged, when the fireproof door body is movably arranged, the lantern ring in the door closer body arranged on the rotating shaft rotates on the peripheral wall of the rotating shaft, so that the support connecting rod connected with the lantern ring is driven to realize the opening and closing state of the fireproof door body at the position of the installation wall, the abrasion generated when the lantern ring rotates on the rotating shaft is reduced due to the design of the rubber ring, and the service life of the connecting part of the door closer is prolonged;

2. the utility model also provides an outer supporting plate arranged on the door closer body, and the outer supporting plate is sequentially provided with the flame retardant layer, the outer supporting layer, the heat insulating cavity, the inner supporting layer and the rubber layer from outside to inside, wherein the design of the flame retardant layer has good flame retardant effect, the door closer body structure is prevented from being influenced by open fire in a fire disaster state, the design of the heat insulating layer and the heat insulating cavity has heat insulating effect, high temperature is prevented from being transmitted from the outer supporting plate of the door closer body to the inside of the door closer body, and the normal use of the door closer body structure is maintained.

Drawings

FIG. 1 is a perspective view of the present utility model at a first view;

FIG. 2 is a perspective view of the second view of the present utility model;

FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present utility model;

fig. 4 is a layered structure view of an external support plate of the door closer of the present utility model.

In the figure: 1. a fire door body; 2. a door closer body; 21. installing a bottom block; 22. connecting the square blocks; 23. a connecting plate; 24. a rotating shaft; 25. a rubber ring; 26. a collar; 27. a support link; 28. a fixing ring; 3. a flame retardant layer; 4. an outer support layer; 5. a thermal insulation layer; 6. a heat insulating chamber; 7. an inner support layer; 8. and a rubber layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the fireproof door closer comprises a fireproof door body 1, wherein a door closer body 2 is fixedly arranged on one side of the top of the fireproof door body 1 by adopting a screw, the door closer body 2 comprises a mounting bottom block 21, the mounting bottom block 21 is arranged on the back end face of the fireproof door body 1 by adopting a screw, a connecting square 22 is welded and arranged at the top end of the mounting bottom block 21, a connecting plate 23 is fixedly connected with the rear end of the connecting square 22 by welding, a rotating shaft 24 is welded and arranged on the upper surface of the tail end of the connecting plate 23 far away from the connecting square 22, a plurality of rubber rings 25 are arranged in an embedded splicing manner on the outer Zhou Dengchang opening cavity of the rotating shaft 24, a lantern ring 26 is rotatably arranged outside the rotating shaft 24 and in contact with the plurality of rubber rings 25 in a sleeved mode, a supporting connecting rod 27 is connected on the outer peripheral face of the lantern ring 26 by adopting a screw, a fixing ring 28 is welded and arranged at one end of the supporting connecting rod 27 far away from the connecting point of the supporting connecting rod 27 and the lantern ring 26, the door closer body 2 is sleeved with a connecting piece arranged on the end face of an installation wall body through the inner ring of the fixing ring 28, so that the door body is connected with the fireproof door body 1, the outermost layer of an outer supporting plate on the door closer body 2 is provided with a flame retardant layer 3, the flame retardant layer 3 is made of synthetic resin containing halogen, phosphorus and nitrogen flame retardant elements, an outer supporting layer 4 is integrally and compositely pressed on the inner side of the flame retardant layer 3, a heat insulating layer 5 is integrally and compositely pressed on the inner side of the outer supporting layer 4, superfine glass wool and high silica wool materials are compositely pressed on the heat insulating layer 5, a heat insulating cavity 6 is integrally and compositely pressed on the inner side of the heat insulating cavity 6, an inner supporting layer 7 is integrally and compositely pressed on the inner side of the inner supporting layer 7, and a rubber layer 8 is integrally and compositely pressed on the inner side of the inner supporting layer 7.

The flame-retardant layer 3, the outer supporting layer 4, the heat insulation layer 5, the heat insulation cavity 6, the inner supporting layer 7 and the rubber layer 8 are integrally formed and compositely pressed to form an outer supporting plate of the door closer body 2; the outer support layer 4 and the inner support layer 7 are made of steel materials; the inner peripheral wall of the lantern ring 26 is slotted and provided with a circular groove which is matched with the rubber ring 25.

Working principle: when the door closer is used, through the rubber rings 25 which are embedded in grooves on the outer peripheral surface of the rotating shaft 24 and are connected with the mounting bottom block 21, the connecting block 22 and the connecting plate 23, and the rotating lantern ring 26 is sleeved outside the rotating shaft 24, when the door closer body 1 is movably prevented from being used, the lantern ring 26 in the door closer body 2 mounted on the rotating shaft 24 rotates on the outer peripheral wall of the rotating shaft 24, the support connecting rod 27 connected with the lantern ring 26 is driven to realize the opening and closing state of the door closer body 1 at the mounting wall, wherein the abrasion generated when the lantern ring 26 rotates on the rotating shaft 24 is reduced due to the design of the rubber rings 25, the service life of the connecting part of the door closer is prolonged, and in addition, the flame retardant layer 3, the outer support layer 4, the heat insulation layer 5, the heat insulation cavity 6 and the inner support layer 7 and the rubber layer 8 are sequentially arranged on the door closer body 2 from outside to inside, so that the flame retardant layer 3 has good flame retardant effect, the structure of the door closer body 2 is prevented from being influenced by naked flame, the heat insulation layer 5 and the heat insulation cavity 6 is prevented from being influenced under the fire state, the heat insulation effect is realized, the service effect is easy, and the door closer body is prevented from being used, and the door closer 2 is convenient to be used, and the door closer 2 is convenient to operate.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Fireproof door closer, including preventing fire door body (1), its characterized in that: the fireproof door comprises a fireproof door body (1), a door closer body (2) is fixedly arranged on one side of the top of the fireproof door body (1), the door closer body (2) comprises a mounting bottom block (21), the mounting bottom block (21) is fixedly arranged on the back end face of the fireproof door body (1), a connecting square block (22) is fixedly arranged at the top end of the mounting bottom block (21), a connecting plate (23) is fixedly arranged at the rear end of the connecting square block (22), a rotating shaft (24) is fixedly arranged on the connecting plate (23) at the upper surface of the tail end far away from the connecting square block (22), a plurality of rubber rings (25) are arranged on the outer Zhou Dengchang of the rotating shaft (24), a lantern ring (26) is arranged outside the rotating shaft and in contact with the plurality of rubber rings (25), a supporting connecting rod (27) is arranged on the outer peripheral face of the lantern ring (26), a fixing ring (28) is arranged at one end far away from the connecting point of the supporting connecting rod (27), a flame-retardant layer (3) is arranged on the outermost layer of the door closer body (2), a heat-insulating layer (6) is arranged on the inner side of the inner side (4), a heat-insulating layer (6) is arranged on the outer layer (4), the inner side of the inner supporting layer (7) is provided with a rubber layer (8).

2. A fire rated door closer according to claim 1, wherein: the outer support plate of the door closer body (2) is formed by integrally forming and compositely pressing the flame retardant layer (3), the outer support layer (4), the heat insulation layer (5), the heat insulation cavity (6), the inner support layer (7) and the rubber layer (8).

3. A fire rated door closer according to claim 1, wherein: the outer supporting layer (4) and the inner supporting layer (7) are made of steel materials.

4. A fire rated door closer according to claim 1, wherein: the inner peripheral wall of the lantern ring (26) is provided with a circular groove which is matched with the rubber ring (25).