Door support structure of access door with damping door closer

Abstract

The utility model discloses a door support structure of an access door with a damping door closer, which comprises a horizontal plate, a mounting plate, a first clamping rod, a second clamping rod, a first end plate fixedly arranged at the top of the first clamping rod, a second end plate fixedly arranged at the top of the second clamping rod, and a return spring connected between the first end plate and the upper surface of the horizontal plate, one end of the abutting assembly is fixedly connected with the second end plate, and the other end abuts against the lower end edge of the first end plate; the first clamping rod and the second clamping rod are sequentially arranged on the horizontal plate in a penetrating mode in the opening direction of the channel door and can freely slide up and down, and the lower end of the first clamping rod and the lower end of the second clamping rod are obliquely arranged downwards in the opening direction of the channel door to form a first jacking tongue and a second jacking tongue respectively. The channel door limiting device is simple in structure and convenient to install and use, the opened channel door can be limited so that the channel door can be in an open state, and meanwhile limiting on the channel door can be conveniently relieved so that the channel door can return to be in a closed state.

Description

Technical Field

[0001] The utility model relates to a door support structure of a passage door with a damping door closer. Background Art

[0002] In order to meet the requirements of fire prevention and fire fighting, normally closed fire doors should be kept closed at ordinary times. When people open the fire passage door and pass through, the damping door closer on the door will automatically close the fire passage door, so that the fire passage door can effectively block the invasion of thick smoke and flames after a fire occurs. However, in some cases, such as the need to transport materials through the fire passage door frequently or for a long time, due to the effect of the damping door closer, it is difficult for the fire passage door to remain open for a certain period of time, which will affect the efficiency of material transportation. In addition, when encountering an emergency, it is necessary to evacuate people through the fire passage door. Similarly, because the fire passage door cannot remain open, it will hinder the rapid passage of the evacuated people.

[0003] In the prior art, in order to keep the door in an open state for a long time, common methods include: (1) using a wedge-shaped door plug to plug into the bottom of the door. However, the door plug is easy to lose during use. Secondly, the gap between the bottom of the fire passage door and the ground is usually smaller, and the door plug is difficult to plug into the gap between the door and the ground; (2) using a door stopper, such as a magnetic door stopper. However, for fire passage doors, firstly, the damping door closer exerts a large force on the fire passage door, and a general magnetic door stopper is difficult to attract the fire passage door; secondly, the existing door stoppers are usually installed on the ground or wall at the bottom of both sides of the fire passage door, which will occupy the passage space. Utility Model Content

[0004] In view of the above problems, the utility model provides a door support structure for a passage door with a damping door closer, which has a simple structure and is easy to install and use. It can not only limit the opened passage door to keep the passage door in an open state, but also easily release the limit on the passage door to return the passage door to a closed state.

[0005] The utility model is achieved through the following technical solutions.

[0006] A door support structure for a passage door with a damping door closer, characterized in that it includes a horizontal plate, a mounting plate arranged at one end of the horizontal plate for fixing the door support structure to a wall, a first clamping rod, a second clamping rod, a first end plate fixedly arranged at the top of the first clamping rod, a second end plate fixedly arranged at the top of the second clamping rod, a return spring connected between the first end plate and the upper surface of the horizontal plate, and a top connection component with one end fixedly connected to the second end plate and the other end abutting against the lower edge of the first end plate; the first clamping rod and the second clamping rod are arranged on the horizontal plate so as to be able to slide freely up and down in sequence along the opening direction of the passage door, and the lower ends of the first clamping rod and the second clamping rod are arranged to be inclined downward along the opening direction of the passage door to form a first top tongue and a second top tongue respectively.

[0007] Preferably, the top connection assembly includes a top connection ring which is arranged around the first clamping rod and abuts against the bottom edge of the first end plate, and a connecting plate which has one end fixedly connected to the top connection ring and the other end fixedly connected to the second end plate.

[0008] Preferably, a limiting plate is provided between the second clamping rod and the mounting plate, and the limiting plate is used to limit the opened passage door to prevent the top of the passage door from passing over the second clamping rod and being unable to return to its original position.

[0009] Preferably, the downwardly extending length of the second top tongue is greater than the downwardly extending length of the first top tongue.

[0010] Preferably, when the top of the passage door passes over the first clamping rod and abuts against the right side of the first push tongue, the second push tongue does not contact the top of the passage door.

[0011] Preferably, nail holes are provided on the mounting plate.

[0012] Preferably, the horizontal plate, the mounting plate, the first clamping rod and the second clamping rod are all made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1) The utility model can not only limit the opened passage door so that the passage door is in an open state, but also conveniently release the limit of the passage door so that the passage door returns to a closed state.

[0015] 2) The utility model is installed on the wall at the top of the passage door and will not affect or occupy the travel space of the passage.

[0016] 3) The utility model has a simple structure and is easy to install. It is not only suitable for passage doors with damping door closers, but also suitable for fixing other doors, and has good promotion and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a bottom view of the utility model;

[0019] Figure 3 It is a top view of the top connection component;

[0020] Figure 4 It is a structural schematic diagram of a passage door when it is fixed by the utility model;

[0021] Figure 5 is a schematic diagram of the structure when the passage door is in contact with the first tongue;

[0022] Figure 6 It is a schematic diagram of the structure when the passage door is in contact with the second tongue;

[0023] Figure 7 It is a top view of the passage door when it is fixed by the utility model;

[0024] The meanings of the symbols in the above figure are: horizontal plate 1, wall 2, mounting plate 3, nail hole 301, first clamping rod 4, first top tongue 401, second clamping rod 5, second top tongue 501, return spring 6, top connection assembly 7, top connection ring 701, connecting plate 702, first end plate 8, second end plate 9, passage door 10, limit plate 11, reduction gear 12. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items. Example

[0028] A door support structure for a passage door with a damping door closer, see Figures 1 to 7 , which includes a horizontal plate 1, a mounting plate 3 arranged at one end of the horizontal plate 1 for fixing the door support structure on the wall 2, a first clamping rod 4, a second clamping rod 5, a first end plate 8 fixedly arranged at the top of the first clamping rod 4, a second end plate 9 fixedly arranged at the top of the second clamping rod 5, a return spring 6 connected between the first end plate 8 and the upper surface of the horizontal plate 1, and a top connection component 7 with one end fixedly connected to the second end plate 9 and the other end abutting against the lower edge of the first end plate 8; the first clamping rod 4 and the second clamping rod 5 are arranged on the horizontal plate 1 so as to be freely slidable up and down in sequence along the opening direction of the passage door 10, and the lower ends of the first clamping rod 4 and the second clamping rod 5 are arranged obliquely downward along the opening direction of the passage door 10 to form a first top tongue 401 and a second top tongue 501 respectively; the length of the second top tongue 501 extending downward is greater than the length of the first top tongue 401 extending downward;

[0029] In the above structure, since one end of the top-connecting assembly 7 is fixedly connected to the second end plate 9 and the other end is in contact with the lower edge of the first end plate 8, when the first card rod 4 moves upward, no force is generated on the second card rod 5; and when the second card rod 5 moves upward, the second card rod 5 will drive the first card rod 4 to move upward through the top-connecting assembly 7, but when the external upward force of the passage door 10 is lost, the first card rod 4 will drive the second card rod 5 to move slowly downward through the action of the return spring 6 until the first card rod 4 returns to its original position;

[0030] Based on the above structure, please refer to Figure 5 When the passage door 10 needs to be opened to be in an open state, it is only necessary to push the passage door 10. First, the top of the passage door 10 will contact the first push tongue 401 provided at the lower end of the first clamping rod 4. Since the first push tongue 401 is provided to tilt downward along the opening direction of the passage door 10, the passage door 10 will generate a horizontal thrust during the opening process, and the inclined surface of the first push tongue 401 will convert the horizontal thrust into an upward thrust to move the first clamping rod 4 upward from the initial position; please refer to Figure 4 If the passage door 10 is pushed continuously, when the passage door 10 just passes over the first latch rod 4, the first latch rod 4 will move downward under the action of the return spring 6, and then return to the initial position, so that the first push tongue 401 moves to below the top edge of the passage door 10 to limit the passage door 10. In this way, when the thrust is removed, the passage door 10 cannot be restored to the closed state under the drive of the damping door closer. At this time, due to the limitation of the first push tongue 401, the passage door 10 will be in a state of being always open; please refer to Figure 6When it is necessary to release the limit of the passage door 10 so that the passage door is restored to the closed state under the drive of the damping door closer, it is only necessary to continue to push the passage door 10 in the opening direction of the passage door 10. At this time, similar to the above, the top of the passage door 10 will contact the second top tongue 501 provided at the lower end of the second clamping rod 5, and the second top tongue 501 will convert the horizontal thrust into an upward thrust to move the second clamping rod 5 upward, and the second clamping rod 5 will act on the first end plate 8 through the second end plate 9 and the top connection assembly 7, thereby driving the first clamping rod 4 to move upward. Since the downward extension length of the second top tongue 501 is greater than the downward extension length of the first top tongue 401 degree, at this time, the position of the first push tongue 401 at the lower end of the first clamping rod 4 will be higher than the position of the top of the passage door 10. If the thrust of the passage door 10 is removed at this time, the passage door will return to its original position under the drive of the damping door closer, and under the above conditions, the action of the return spring 6 not only needs to drive the first clamping rod 4 to move downward, but also drives the second clamping rod 5 downward under the action of the top connection component 7. Therefore, the return speed of the first clamping rod 4 is relatively slow. In this way, when the passage door passes over the first clamping rod 4, the first push tongue 401 at the lower end of the first clamping rod 4 will not contact or restrict the passage door, so that the passage door can be smoothly restored to a closed state.

[0031] Furthermore, in a preferred embodiment, the lower end surfaces of the first top tongue 401 and the second top tongue 501 are inclined downward at an angle of 30 to 45 degrees, and in order to reduce the friction when the channel door contacts the lower end surface of the first top tongue 401 or the second top tongue 501, the lower end surfaces of the first top tongue 401 and the second top tongue 501 are smooth and flat surfaces.

[0032] In order to further slow down the return speed of the second clamping rod 5 after driving the first clamping rod 4 to move upward, further, in a preferred embodiment, the utility model also includes a reduction gear 12, which is arranged at the bottom of the horizontal plate 1 and meshes with the side wall of the second clamping rod 5.

[0033] Furthermore, in a preferred embodiment, the downwardly extending length of the second top tongue 501 is greater than the downwardly extending length of the first top tongue 401 by 0.5 to 1 cm.

[0034] Furthermore, in a preferred embodiment, the top connection assembly 7 includes a top connection ring 701 which is arranged around the first clamping rod 4 and abuts against the bottom edge of the first end plate 8, and a connecting piece 702 which is fixedly connected to the top connection ring 701 at one end and fixedly connected to the second end plate 9 at the other end. In this structure, the top connection ring 701 abuts against the bottom edge of the first end plate 8 in an annular direction, so that the force transmission between the first end plate 8 and the top connection assembly 7 can be more uniform.

[0035] Furthermore, in a preferred embodiment, a limiting plate 11 is arranged between the second clamping rod 5 and the mounting plate 3, and the limiting plate 11 is used to limit the opened passage door 10, thereby preventing the passage door 10 from being unable to return to its original position due to the limitation of the second clamping rod 5 after the top of the passage door 10 passes over the second clamping rod 5.

[0036] When the channel door 10 just passes over the first card rod 4, the first push tongue 401 will move to the bottom of the top edge of the channel door 10 and abut against one side of the channel door 10 to limit the channel door 10. If the channel door 10 is in contact with the second push tongue 501 at the same time, the second push tongue 501 will drive the first push tongue 401 to move upward through the second card rod 5, the top connection assembly 7, and the first card rod 4 in sequence, thereby affecting the limiting of the channel door 10 by the first push tongue 401. To avoid the above situation, in a preferred embodiment, when the top of the channel door 10 just passes over the first card rod 4 and abuts against the right side of the first push tongue 401, the second push tongue 501 does not contact the top of the channel door 10.

[0037] In order to facilitate the installation of the device of the utility model on the wall, further, in a preferred embodiment, nail holes 301 are provided on the installation plate 3 .

[0038] In order to ensure the overall strength of the door support structure, further, in a preferred embodiment, the horizontal plate 1, the mounting plate 3, the first clamping rod 4 and the second clamping rod 5 are all made of stainless steel.

Claims

1. A door support structure for a passage door with a damping door closer, characterized in that The door lock assembly comprises a horizontal plate, a mounting plate arranged at one end of the horizontal plate for fixing the door support structure on the wall, a first clamping rod, a second clamping rod, a first end plate fixedly arranged at the top of the first clamping rod, a second end plate fixedly arranged at the top of the second clamping rod, a return spring connected between the first end plate and the upper surface of the horizontal plate, and a top connection component with one end fixedly connected to the second end plate and the other end abutting against the lower edge of the first end plate; the first clamping rod and the second clamping rod are arranged on the horizontal plate so as to be freely slidable up and down in sequence along the opening direction of the passage door, and the lower ends of the first clamping rod and the second clamping rod are arranged to be inclined downward along the opening direction of the passage door to form a first top tongue and a second top tongue respectively; the downward extending length of the second top tongue is greater than the downward extending length of the first top tongue.

2. A door support structure for a passage door with a damping door closer as claimed in claim 1, characterized in that: The top connection assembly comprises a top connection ring which is arranged around the first clamping rod and abuts against the bottom edge of the first end plate, and a connecting piece which is fixedly connected to the top connection ring at one end and fixedly connected to the second end plate at the other end.

3. A door support structure for a passage door with a damping door closer as claimed in claim 1, characterized in that: A limiting plate is arranged between the second clamping rod and the mounting plate, and the limiting plate is used to limit the opened passage door to prevent the top of the passage door from passing over the second clamping rod and being unable to return to its original position.

4. A door support structure for a passage door with a damping door closer as claimed in claim 1, characterized in that: When the top of the passage door passes over the first clamping rod and abuts against the right side of the first push tongue, the second push tongue does not contact the top of the passage door.

5. A door support structure for a passage door with a damping door closer as claimed in claim 1, characterized in that: The mounting plate is provided with nail holes.

6. A door support structure for a passage door with a damping door closer as claimed in claim 1, characterized in that: The horizontal plate, the mounting plate, the first clamping rod and the second clamping rod are all made of stainless steel.

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