Manual openable door closing device

Abstract

The utility model discloses a manual openable door closing device. The manual openable door closing device comprises a fixed plate, a U-shaped fixed ring and a movable circular ring, the U-shaped fixing ring is fixedly arranged on the fixing plate; a locking ring fixing rod is arranged in the U-shaped fixing ring; the movable circular ring sleeves the lock ring fixing rod and can move up and down relative to the lock ring fixing rod; the fixed plate is arranged on a door frame column, and the movable circular ring plays a role in limiting a door plug arranged on a door leaf. The device limits non-project personnel to enter and exit the construction site under the condition that the pedestrian door is not managed, and the project personnel can manually open the door closing device by themselves to enter and exit the construction site; locking can be achieved at night, and people are prevented from entering and exiting at night; time, labor and labor can be saved; operation is easy, convenience and rapidness are achieved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, and specifically relates to a manually openable door closing device. Background Art

[0002] In some construction projects, in order to prevent unauthorized personnel from entering the project construction site, some walls and protective doors will be set up. In order to reduce the number of security guards on duty, automatic identification and electronically controlled anti-theft doors are often used. This electronic anti-theft door needs to be powered 24 hours a day, and the information of the construction personnel must be pre-entered, and it will automatically identify and open. This electronic pedestrian door greatly improves the security inside the construction site.

[0003] However, in some places, this kind of smart security door that needs to be powered 24 hours a day is not suitable. Only a simple pedestrian door that can be opened and closed manually and cannot be opened at will by non-project personnel is needed. The use of automatic smart doors is not only inconvenient, but also causes cost waste. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a manually openable door closing device, which solves the problem that special places of some projects in the prior art do not require automatic intelligent anti-theft doors.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] A manually openable door closing device comprises a fixed plate, a U-shaped fixed ring, and a movable ring; the U-shaped fixed ring is fixedly arranged on the fixed plate; a locking ring fixing rod is arranged inside the U-shaped fixed ring; the movable ring is sleeved on the locking ring fixing rod and can move up and down relative to the locking ring fixing rod; the fixed plate is arranged on the door frame column, and the movable ring plays a limiting role on the door plug arranged on the door leaf. The device restricts non-project personnel from entering and exiting the construction site when the pedestrian door is unattended, while project personnel can manually open the door closing device to enter and exit the construction site; it can be locked at night to prevent people from entering and exiting at night; it can save time, effort and labor; it is easy to operate, convenient and fast, and reduces safety hazards.

[0007] The fixed plate is provided with a three-speed conversion device for controlling the door leaf to be in three states: normally open, manually opened, and locked.

[0008] The three-speed shifting device includes a movable fixed rod, a shift handle, and a shift slot; wherein the shift slot includes a vertical slot arranged on a fixed plate and three-speed transverse slots connected to the vertical slot; one end of the movable fixed rod is connected to the shift handle, and the other end passes through a movable circular ring and is placed above a U-shaped fixed ring; the shift handle is arranged in the shift slot, moves up and down in the vertical slot, and is fixed in the transverse slot to realize gear shifting.

[0009] The shift handle is connected to an external control structure, and the gear position is switched by controlling the shift handle outside the door.

[0010] The fixing plate is a steel plate, the U-shaped fixing ring is a steel ring, and the U-shaped fixing ring is welded on the fixing steel plate.

[0011] The door plug is fixedly welded to the door leaf, and the end portion thereof extends out of a portion of the outer side of the door leaf.

[0012] The two ends of the fixing plate are fixed on the door frame columns by bolts.

[0013] A door closer is arranged between the door leaf and the door frame.

[0014] An invisible door structure is arranged on the door leaf for opening from the outside.

[0015] The invisible door structure includes a through hole on the edge of the door leaf close to the door plug, and a small door that can be opened and closed is arranged in the through hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. This device restricts non-project personnel from entering and exiting the construction site when there is no one to manage the pedestrian door. At the same time, project personnel can manually open the door closing device to enter and exit the construction site; it can be locked at night to prevent people from entering and exiting at night; it can save time, effort and manpower; it is easy to operate, convenient and fast, and reduces safety hazards.

[0018] 2. The three-speed adjustment device can put the door in three states, and only project personnel can know how to open it, preventing non-project personnel from entering, reducing door guard management personnel and saving costs.

[0019] 3. The construction tools are simple to make, and the sources of materials are diverse and nearby. They can be made of waste square steel pipes, steel bars and other materials, which greatly saves construction costs. As a standard device, it can be promoted and applied in corresponding fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front elevation of the door closing device of the utility model.

[0021] Figure 2 The utility model is a side elevation of a door closing device.

[0022] Figure 3 It is a top view of the door closing device of the utility model.

[0023] Figure 4 This is a front elevation view of the door closing device of the present utility model.

[0024] Figure 5 It is a schematic diagram of the structure of the three-speed conversion device of the utility model.

[0025] Among them, the markings in the figure are: 1-door closer; 2-door closing device; 21-fixed steel plate; 22-U-shaped fixed steel ring; 23-movable circular ring; 24-first bolt; 25-second bolt; 3-door leaf; 4-fixed door frame column; 5-horizontal door plug; 6-locking ring fixing rod; 7-three-speed shifting device; 71-movable fixed rod; 72-shift handle; 73-shifting device frame; 74-movable groove with limit. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all of the embodiments.

[0027] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0028] The present invention relates to the field of manually openable door closing devices and building construction technology, and specifically to a manually openable door closing device for pedestrian access doors in building construction. It includes a door closer, a door lock device, a door closer and a door leaf. The door lock device is composed of a fixed U-shaped limit welding iron and a circular ring. The circular ring is semi-fixed in the middle of the U-shaped limit welding iron through a horizontal welded pipe and can move 360° along the horizontal welded pipe. The horizontal length of the U-shaped limit welding iron is shorter than the maximum horizontal displacement of the circular ring in the same direction. When the bolt is pulled to open the door, the door opening is restricted due to the horizontal limiting effect of the U-shaped limit welding iron and the horizontal welded pipe on the circular ring, which plays a role in restricting the passage of people; when the door needs to be opened, the hand can be inserted through the square hole on the door, and the circular ring can be lifted vertically upward, so that the U-shaped limit welding iron and the horizontal welded pipe lose their limiting effect, and then the door can be opened for passage, and the door closer ensures that the door is in a closed state.

[0029] The manual gear limiter on the right side of the door lock device can realize the three states of door normally open, manual opening and door locking.

[0030] A manually openable door closing device comprises a fixed plate, a U-shaped fixed ring and a movable ring; the U-shaped fixed ring is fixedly arranged on the fixed plate; a lock ring fixing rod is arranged inside the U-shaped fixed ring; the movable ring is sleeved on the lock ring fixing rod and can move up and down relative to the lock ring fixing rod; the fixed plate is arranged on the door frame column, and the movable ring plays a limiting role on the door plug arranged on the door leaf.

[0031] Specific embodiments, such as Figures 1 to 5 As shown,

[0032] A manually openable door closing device comprises a fixed steel plate 21, a U-shaped fixed steel ring 22 and a movable circular ring 23; the U-shaped fixed steel ring 22 is fixedly arranged on the fixed steel plate 21; a locking ring fixing rod 6 is arranged inside the U-shaped fixed steel ring 22; the movable circular ring 23 is sleeved on the locking ring fixing rod 6 and can move up and down relative to the locking ring fixing rod 6; the fixed steel plate 21 is arranged on the fixed door frame column 4, and the movable circular ring 23 plays a limiting role on the horizontal door plug 5 arranged on the door leaf 3.

[0033] The fixed steel plate 21 is provided with a three-speed conversion device 7 for controlling the door leaf 3 to be in three states: normally open, manually opened, and locked.

[0034] The three-speed shifting device 7 includes a movable fixed rod 71, a shift handle 72, and a shift slot; wherein the shift slot includes a shifting device frame 73 (vertical slot) arranged on a fixed plate and a movable slot 74 with a limit (three-speed horizontal slot) connected to the vertical slot; one end of the movable fixed rod 71 is connected to the shift handle 72, and the other end passes through the movable circular ring 23 and is placed above the U-shaped fixed steel ring 22; the shift handle 72 is arranged in the shift slot, moves up and down in the vertical slot, and is fixed in the horizontal slot to realize gear shifting.

[0035] The shift knob 72 is connected to an external control structure, and the gear position is switched by controlling the shift knob outside the door.

[0036] The U-shaped fixing steel ring 22 is welded on the fixing steel plate 21 .

[0037] The horizontal door plug 5 is fixedly welded to the door leaf 3 , and its end extends out of a portion of the outer side of the door leaf 3 .

[0038] Both ends of the fixing steel plate 21 are fixed to the door frame column 4 by means of a first bolt 24 and a second bolt 25 .

[0039] A door closer 1 is arranged between the door leaf 3 and the door frame, and the door closer 1 is fixed by bolts.

[0040] An invisible door structure is arranged on the door leaf for opening from the outside.

[0041] The invisible door structure includes a through hole on the edge of the door leaf close to the door plug, and a small door that can be opened and closed is arranged in the through hole.

[0042] The specific manufacturing process of the device includes the following steps:

[0043] Step 1: Open the door leaf

[0044] A 150x150mm square hole is cut at a position 900mm from the ground and 100mm from the side where the door leaf is opened. A horizontal limit rod is welded at about 50mm above the square hole on the inner side of the door.

[0045] Step 2: Install the finished door closer

[0046] Install the finished door closer on the door frame fixing beam and door leaf.

[0047] Step 3: Make a door lock device, a door lock device and a manually openable door closing device described in this scheme.

[0048] Step 4: Fix the manually openable door closing device near the door opening.

[0049] The specific application process of this device includes the following steps:

[0050] 1. Lift the ring vertically to open the door.

[0051] 2. The manual gear limiter on the right side of the door lock device can realize the three states of door normally open, manual opening and door locking.

[0052] The device can also be equipped with an automatic door closing device, which is installed above the movable ring. Its controller is powered by a battery. When the project manager finds that all the workers on the construction site have left or there is a need to lock the door, he or she can remotely control the door closing device to fall, thereby limiting the up and down movement of the movable ring and achieving a normally closed state of the door lock. The space for the movable ring to move up and down can be restored only when someone manually lifts the door closing device.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0054] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0055] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0056] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0058] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.

[0059] It should be understood that the present solution is not limited to the above-mentioned specific implementation methods, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present solution without departing from the scope of the technical solution of the present solution, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essential content of the present solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present solution without departing from the content of the technical solution of the present solution still falls within the scope of protection of the technical solution of the present solution.

Claims

1. A manually openable door closing device, characterized in that: It includes a fixed plate, a U-shaped fixed ring, and a movable ring; the U-shaped fixed ring is fixedly arranged on the fixed plate; a lock ring fixing rod is arranged inside the U-shaped fixed ring; the movable ring is sleeved on the lock ring fixing rod and can move up and down relative to the lock ring fixing rod; the fixed plate is arranged on the door frame column, and the movable ring plays a limiting role on the door plug arranged on the door leaf.

2. The manually openable door closing device according to claim 1, characterized in that: The fixed plate is provided with a three-speed conversion device for controlling the door leaf to be in three states: normally open, manually opened, and locked.

3. The manually openable door closing device according to claim 2, characterized in that: The three-speed shifting device includes a movable fixed rod, a shift handle, and a shift slot; wherein the shift slot includes a vertical slot arranged on a fixed plate and three-speed transverse slots connected to the vertical slot; one end of the movable fixed rod is connected to the shift handle, and the other end passes through a movable circular ring and is placed above a U-shaped fixed ring; the shift handle is arranged in the shift slot, moves up and down in the vertical slot, and is fixed in the transverse slot to realize gear shifting.

4. The manually openable door closing device according to claim 3, characterized in that: The gear shift handle is connected to an external control structure, and the gear position is switched by controlling the gear shift handle outside the door.

5. The manually openable door closing device according to claim 4, characterized in that: The fixing plate is a steel plate, the U-shaped fixing ring is a steel ring, and the U-shaped fixing ring is welded on the fixing steel plate.

6. The manually openable door closing device according to claim 1, characterized in that: The door plug is fixedly welded to the door leaf, and the end portion thereof extends out of a portion of the outer side of the door leaf.

7. The manually openable door closing device according to claim 1, characterized in that: The two ends of the fixing plate are fixed on the door frame columns by bolts.

8. The manually openable door closing device according to claim 1, characterized in that: A door closer is arranged between the door leaf and the door frame.

9. The manually openable door closing device according to any one of claims 1 to 8, characterized in that: An invisible door structure is arranged on the door leaf for opening from the outside.

10. The manually openable door closing device according to claim 9, characterized in that: The invisible door structure includes a through hole on the edge of the door leaf close to the door plug, and a small door that can be opened and closed is arranged in the through hole.

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