Reverse mounting structure for door closer of fireproof door

Abstract

The utility model discloses a fireproof door closer reverse installation structure which comprises an adapter seat, a reverse installation plate and a door closer, the adapter seat is fixed on a door frame fixing keel on the outer side of a door frame door pushing face through an anchor bolt, the bottom end of the adapter seat is flush with the bottom end of the door frame door pushing face, the reverse installation plate is an L-shaped plate, and the door closer is arranged on the reverse installation plate. The outer section of a transverse plate is fixed on the adapter seat through a connecting bolt, the inner section of the transverse plate abuts against the bottom end face of the door frame, a vertical plate of the transverse plate vertically extends downwards at the outer end of the transverse plate, the door closer is arranged on the closing side of the door leaf, a machine body of the door closer is fixed on the door leaf, and a connecting seat at the tail end of a connecting rod of the door closer is fixed on the vertical plate of the reverse mounting plate. The adapter is additionally arranged in front of the door frame fixing keel (or the masonry wall lintel), a stable rooting point is provided for the door closer, the door closer is further stably installed between the door pushing face of the closing side of the door leaf and the adapter through the reverse installation plate, it is guaranteed that the door closer is good in stress, the service life of the door closer is prolonged, and construction quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door closer installation, in particular to a reverse installation structure of a fireproof door closer. Background Art

[0002] The door closer is a hydraulic device similar to a spring on the door head. When the door is opened, it can be compressed and then released to automatically close the door. It has the function of a spring door, which can ensure that the door is accurately and timely closed to the initial position after it is opened. It is mainly a hydraulic door closer. At present, the fire door (steel door) closer is mainly in the form of a straight installation. The so-called straight installation means that the door closer is installed on the hinge side, the side where the door is opened. Since the straight installation construction of the door closer is relatively simple, the material consumption is relatively economical, and the price is relatively affordable, most factory fire door (steel door) closers adopt the straight installation form.

[0003] However, for outdoor fire doors (steel doors), door closers installed in a normal manner will inevitably be exposed to the outdoors for a long time and will inevitably be exposed to wind and rain, and will also affect the aesthetics of the facade of large factories; for indoor fire doors (steel doors), the use of normal door closers will occupy the corridor space, which will cause people and materials to be injured when touching the door closers when passing. Therefore, developing a reliable fire door (steel door) door closer reverse installation structure is the key and difficulty that needs to be solved urgently. Especially for fire door (steel door) structures with narrow door frames, due to the limited space on the opening side of the door leaf, the stability of the door closer installation structure is difficult to guarantee, and this demand becomes more urgent. Utility Model Content

[0004] The utility model aims to provide a reverse installation structure of a fire door closer to solve the technical problems described in the background technology.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] A reverse installation structure for a fire door closer comprises an adapter seat, a reverse installation plate and a door closer, wherein the adapter seat is fixed to a door frame fixed keel on the outer side of a door frame push door surface by anchor bolts, and the bottom end of the adapter seat is flush with the bottom end of the door frame push door surface, the reverse installation plate is an L-shaped plate, the outer section of its transverse plate is fixed to the adapter seat by connecting bolts, the inner section of its transverse plate abuts against the bottom end surface of the door frame, and the vertical plate extends vertically downward at the outer end of its transverse plate, the door closer is arranged on the closed side of the door leaf, the body of the door closer is fixed to the door leaf, and the connecting seat at the end of its connecting rod is fixed to the vertical plate of the reverse installation plate.

[0007] Preferably, the adapter is made of channel steel, and the opening of the channel steel is arranged toward one side of the door frame.

[0008] Preferably, the length of the lower wing plate of the adapter is smaller than the length of the upper wing plate thereof, and the anchor bolts are arranged on the portion of the upper wing plate of the adapter that exceeds the lower wing plate.

[0009] Preferably, the outer facade of the counter-mounted plate vertical plate is flush with the outer facade of the adapter seat belly plate.

[0010] Preferably, a reinforcing lining plate is provided on the inner side of the door leaf pushing surface at a fixed position corresponding to the door closer body.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a stable rooting point for the door closer by adding an adapter before the door frame fixes the keel (or masonry wall lintel), and further securely installs the door closer between the push-door surface on the closed side of the door leaf and the adapter through a counter-mounted plate, thereby ensuring that the door closer is well stressed, increasing its service life, and improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or other aspects and advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0013] Figure 1 It is a schematic elevational structural diagram of a reverse installation structure of a fire door closer involved in the utility model;

[0014] Figure 2 The utility model is a cross-sectional structural schematic diagram of a reverse installation structure of a fire door closer.

[0015] Figure numerals: 1. Door frame fixing keel; 2. Door frame; 3. Door leaf; 4. Adapter; 5. Counter-mounted plate; 6. Anchor bolt; 7. Connecting bolt; 8. Door closer; 9. Sequencer; 10. Reinforcement lining. DETAILED DESCRIPTION

[0016] Hereinafter, an embodiment of a reverse installation structure of a fire door closer of the utility model will be described with reference to the accompanying drawings. The embodiments described herein are specific embodiments of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation methods and scope of the utility model. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0017] In the description of the present invention, it should be noted that the terms "front", "rear", "left", "right", "top", "bottom", "up", "down", "inside", "outside", "horizontal", "longitudinal", "vertical", "oblique" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments are only used to explain the present invention and are not intended to limit the scope of the present invention. Figure 1-2 , the preferred embodiments of the utility model are further described in detail:

[0020] like Figure 1-2 As shown, a preferred fire door closer reverse installation structure of the utility model comprises an adapter seat 4, a reverse installation plate 5 and a door closer 8. The adapter seat 4 is made of channel steel, and the channel steel opening is arranged toward the side of the door frame 2. The upper wing plate thereof is fixed to the door frame fixed keel 1 (or lintel) on the outer side of the door frame 2 push door surface by anchor bolts 6, and the bottom end of the lower wing edge thereof is flush with the bottom end of the door frame 2 push door surface. Since the construction space of the installation position of the adapter seat 4 is relatively narrow, in order to ensure that the adapter seat 4 can be firmly fixed to the door frame On the fixed keel 1, the length of the lower wing plate of the adapter seat 4 is preferably less than the length of the upper wing plate thereof so that the outer edge of the upper wing plate of the adapter seat 4 can be partially exposed. On this basis, the anchor bolts 6 are preferably arranged on the portion where the upper wing plate of the adapter seat 4 exceeds the lower wing plate to ensure that the installer has sufficient operating space. At the same time, the arrangement of the web of the adapter seat 4 facing outward can also enclose the anchor bolts 6 inside to prevent them from accidentally falling off due to external impact, and can also cover the connection surface to a certain extent to ensure the beauty of the installation part;

[0021] The counter-mounting plate 5 is an L-shaped plate, the outer section of the horizontal plate is fixed to the adapter seat 4 by connecting bolts 7, the inner section of the horizontal plate is against the bottom end surface of the door frame 2, and the vertical plate extends vertically downward at the outer end of the horizontal plate, and the outer surface of the vertical plate is flush with the outer surface of the web of the adapter seat 4 to ensure the appearance of the installation part;

[0022] The door closer 8 is arranged on the closed side of the door leaf 3, its body is fixed on the door leaf 3, and the connecting seat at the end of the connecting rod is fixed on the vertical plate of the counter-mounting plate 5. On this basis, for the convenience of installation, the connecting seat at the end of the connecting rod of the door closer 8 can be fixed on the counter-mounting plate 5 in advance in the factory. During on-site installation, it is only necessary to install the connecting rod on the connecting seat. In order to prevent the steel plate of the door leaf 3 from being torn by the door closer 8, a reinforcing lining plate 10 is provided on the inner side of the pushing surface of the door leaf 3 corresponding to the fixed position of the body of the door closer 8. Of course, when the fire door (steel door) is a double-leaf door structure, the door closer 8 needs to be installed on the door leaves 3 on both sides of the fire door, and a sequencer 9 needs to be installed on one of the door leaves 3 according to the specifications.

[0023] The specific construction process of the utility model is as follows:

[0024] As shown in Table 1 and Table 2, the following materials and machines are required for the construction of this utility model:

[0025] Table 1 Materials used in this utility model

[0026]

[0027] Table 2 Mechanical table used in this utility model

[0028]

[0029] The overall construction process of the technical solution of the utility model is as follows:

[0030] Door frame fixed keel 1 (light steel keel) / reinforced concrete door opening forming - fire door (steel door) door frame 2 installation - fire door (steel door) door leaf 3 installation - actual measurement of the distance between the bottom of door frame 2 and door frame fixed keel 1 (or masonry wall lintel) - processing and painting of C-shaped steel (adapter 4) according to the measurement results - installation of adapter 4 and counter-mounted plate 5 - installation of door closer 8 - touch-up paint spraying;

[0031] Through comprehensive consideration in the deepening stage, processing stage and installation stage of the fire door (steel door), a door closer 8 fixing reinforcement lining plate 10 is added to the door leaf 3, process holes are reserved in advance for the door leaf 3 and the door frame 2, and the distance from the bottom of the door frame 2 to the door frame fixed keel 1 or the masonry wall lintel is measured through on-site actual measurement, and C-shaped steel is installed at the door frame fixed keel 1 or the masonry wall lintel in front of the door frame 2 and the reverse plate 5 is fixed thereto to ensure that the door closer 8 is well stressed, increase the service life, and improve the construction quality. Although the construction process of the reverse installation of the fire door (steel door) door closer 8 is more complicated than that of the normal installation of the door closer 8, it has better effects in terms of practicality, aesthetics and durability. The utility model effectively solves the problems that the door closer 8 of a large electronic factory occupies the aisle space and the door closer 8 is exposed to the wind and rain for a long time and is easily damaged. It can be vigorously promoted in high-tech electronic factory projects or other types of buildings.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reverse installation structure of a fire door closer, characterized in that: The invention comprises an adapter seat (4), a counter plate (5) and a door closer (8), wherein the adapter seat (4) is fixed to a door frame fixing keel (1) on the outer side of a door frame (2) by means of anchor bolts (6), and the bottom end of the adapter seat (4) is flush with the bottom end of the door frame (2) push door surface, the counter plate (5) is an L-shaped plate, the outer section of the horizontal plate of which is fixed to the adapter seat (4) by means of connecting bolts (7), the inner section of the horizontal plate of which is against the bottom end surface of the door frame (2), and the vertical plate of which extends vertically downward at the outer end of the horizontal plate, the door closer (8) is arranged on the closed side of the door leaf (3), the body of the door closer (8) is fixed to the door leaf (3), and the connecting seat at the end of the connecting rod of the door closer (8) is fixed to the vertical plate of the counter plate (5).

2. The reverse installation structure of a fire door closer according to claim 1, characterized in that: The adapter seat (4) is made of channel steel, and the opening of the channel steel is arranged toward one side of the door frame (2).

3. The reverse installation structure of a fire door closer according to claim 2, characterized in that: The length of the lower wing plate of the adapter seat (4) is smaller than the length of the upper wing plate thereof, and the anchor bolts (6) are arranged on the portion of the upper wing plate of the adapter seat (4) that exceeds the lower wing plate.

4. The reverse installation structure of a fire door closer according to claim 2, characterized in that: The outer facade of the upright plate of the counter-mounted plate (5) is flush with the outer facade of the belly plate of the adapter seat (4).

5. The reverse installation structure of a fire door closer according to claim 1, characterized in that: A reinforcing lining plate (10) is provided on the inner side of the door leaf (3) push surface at a position corresponding to the fixing position of the door closer (8) body.

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