Air-tight door movable doorsill convenient to disassemble and assemble

Abstract

The air-tight door movable doorsill convenient to disassemble and assemble comprises a doorsill body, the doorsill body is installed at the bottom of a doorframe, the doorframe is arranged in an installation wall face, an installation groove matched with the doorsill body is formed in the bottom of the doorframe, and a locking part is arranged from the wall face of the installation groove to the interior of the doorframe in a sliding mode. In an initial state, the locking part extends out of the mounting groove, the doorsill body comprises a locking groove matched with the locking part, and when the doorsill body slides into the mounting groove, the locking part and the doorsill body act to enable the locking part to move and retract into the door frame; and when the locking part is aligned with the locking groove, the locking part resets and is embedded into the locking groove to complete locking.

Description

Technical Field

[0001] The present application relates to the technical field of closed doors, and in particular to a movable threshold of a closed door which is easy to disassemble and assemble. Background Art

[0002] Protective sealed doors refer to protective equipment installed at the entrances and exits of civil protection projects. They are mainly used to block shock waves and isolate toxic gases. In the event of an emergency, closing the protective sealed doors can ensure people's safety. According to the opening and closing methods of the protective sealed doors, they can be divided into fixed thresholds, drop-type thresholds and movable thresholds.

[0003] The existing movable threshold is generally of large mass due to its concrete or steel material. During installation, the movable threshold often needs to be lifted and moved to the installation position during the transportation and fixing process, which has high labor intensity and is inconvenient for disassembly and assembly. Summary of the invention

[0004] The purpose of the present application is to provide a movable threshold for a closed door which is easy to disassemble and assemble.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a movable threshold for a closed door that is easy to disassemble and assemble, comprising a threshold body, the threshold body being installed at the bottom of a door frame, the door frame being arranged in an installation wall, a mounting groove adapted to the threshold body being opened at the bottom of the door frame, a locking portion being provided on the wall surface of the mounting groove sliding toward the inside of the door frame, the locking portion extending out of the mounting groove in an initial state, the threshold body comprising a locking groove that cooperates with the locking portion, when the threshold body slides into the mounting groove, the locking portion acts on the threshold body to move the locking portion and retract it into the door frame until the locking portion is aligned with the locking groove, the locking portion is reset and embedded in the locking groove to complete the locking.

[0006] Preferably, a movable groove is formed on the top surface of the locking groove, the locking portion is slidably arranged in the movable groove, and a guide surface is provided on the side of the locking portion facing the installation of the threshold body. When the threshold body is installed, the guide surface acts on the locking portion to raise the locking portion. When the locking portion is aligned with the locking groove and the locking portion descends and is embedded in the locking groove, the locking portion abuts against the locking groove on the side opposite to the guide surface to complete the locking.

[0007] Preferably, a spring is provided at the top of the movable groove, and the bottom of the spring abuts against the locking portion. When the threshold body is inserted into and acts on the guide surface, the locking portion rises and compresses the spring, and the spring is reset when the locking portion is aligned with the locking groove.

[0008] Preferably, the door frame is provided with an adjustment hole at a position directly above the installation groove, the adjustment hole passes through the outer surface of the door frame and communicates with the movable groove, the locking portion is fixedly provided with an adjustment portion, the adjustment portion is located in the adjustment hole, and the threshold body can be removed by moving the adjustment portion to make the locking portion leave the locking groove.

[0009] As a preference, the cross-sections of the movable groove and the locking portion are both square, and the guide surface is an arc surface or a plane.

[0010] As a preferred embodiment, a movable groove is formed on one side of the installation groove corresponding to the outer end surface of the threshold body, the locking portion is slidably arranged in the movable groove, a spring is arranged on the innermost side of the movable groove, the outer side of the spring acts on the locking portion to make the locking portion extend into the installation groove in an initial state, and the locking portion is provided with a guide surface on the side facing the installation of the threshold body, and when the threshold body is installed, the guide surface is acted on to make the locking portion move and avoid, until the locking portion is aligned with the locking groove, and the spring resets to make the locking portion move and embed into the locking groove.

[0011] Preferably, a mounting shaft portion is provided on the outside of the door frame, a sealed door is installed on the mounting shaft portion, the sealed door includes an inner plate, a storage groove is opened at the bottom of the sealed door, the storage groove is partially located on the inner plate, and the thickness of the storage groove is consistent with the thickness of the threshold body, so that the threshold body can be completely received in the storage groove.

[0012] As a preferred embodiment, a positioning block is provided on the top of the storage slot, a positioning slot is opened on the top of the threshold body, the positioning block is slidably arranged in the inner plate, an adjustment slot is opened on the outer side of the inner plate, an adjustment block is fixedly installed on the outer side of the positioning block, the adjustment block is located in the adjustment slot, and when the threshold body is in the stored state, the bottom of the positioning block is engaged with the positioning slot, and the positioning block is retracted into the inner plate by pushing the adjustment block upward, so that the threshold body is unlocked.

[0013] Preferably, the threshold body includes two rectangular parts, an upper part and a lower part, the lower part fits with the mounting groove at the bottom of the door frame, and the upper part fits with the inner side of the door frame.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] When installing the threshold body, it is only necessary to slide the threshold body into the installation groove. During the process, the threshold body forces the locking part to be retracted and reset when it is installed in place, thereby completely locking the threshold body. The installation method is simple and there is no need to overcome the gravity of the threshold body to lift it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a side view of the utility model.

[0018] Figure 3 It is a structural diagram of the movable threshold during installation.

[0019] Figure 4 This is a partial structural diagram of the door frame.

[0020] Figure 5 It is a structural schematic diagram of the installation structure and the threshold body.

[0021] In the figure: 1. Installation wall; 2. Sealed door; 3. Inner panel; 4. Storage slot; 5. Positioning block; 6. Adjustment hole; 7. Door sill body; 8. Door frame; 9. Movable slot; 10. Spring; 11. Locking part; 12. Guide surface; 13. Positioning slot; 14. Adjustment part; 15. Locking slot. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] Example:

[0027] Reference Figure 1-5 The present embodiment provides a movable threshold for a closed door that is easy to disassemble and assemble, including a threshold body 7, the threshold body 7 is installed at the bottom of a door frame 8, the door frame 8 is arranged in an installation wall 1, a mounting groove adapted to the threshold body 7 is opened at the bottom of the door frame 8, a locking portion 11 is provided on the wall surface of the mounting groove sliding toward the inside of the door frame, and the locking portion 11 extends out of the mounting groove in an initial state (this state is as shown in FIG. Figure 4 As shown in FIG. 1 , the threshold body 7 includes a locking groove 15 that matches the locking portion 11. When the threshold body 7 slides into the installation groove, the locking portion 11 acts on the threshold body 7 to move the locking portion 11 and retract it into the door frame 8 until the locking portion 11 is aligned with the locking groove 15. The locking portion 11 is reset and embedded in the locking groove 15 to complete the locking. In this embodiment, it is only necessary to slide the threshold body 7 into the installation groove. During the process, the threshold body 7 forces the locking portion 11 to be retracted and reset when it is installed in place, thereby completing the locking of the threshold body 7. The installation method is simple, and there is no need to overcome the gravity of the threshold body 7 to lift it.

[0028] Two matching embodiments of the locking groove 15 and the locking portion 11 are proposed below:

[0029] (1) As attached Figure 3 , Figure 4 As shown, the top surface of the locking groove 15 is provided with a movable groove 9, and the locking part 11 is slidably arranged in the movable groove 9. The locking part 11 is provided with a guide surface 12 on the side facing the door sill body 7. When the door sill body 7 is installed, the guide surface 12 acts on the locking part 11 to make the locking part 11 rise. When the locking part 11 is aligned with the locking groove 15, the locking part 11 is lowered and embedded in the locking groove 15, the locking part 11 is against the locking groove 15 on the side opposite to the guide surface 12 to complete the locking. In this embodiment, when installing the door frame 8 body, it is only necessary to align the door sill body 7 with the locking grooves 15 on both sides of the bottom of the door frame 8, and then push the door sill body 7 inward to complete the above-mentioned locking cooperation, thereby completing the installation of the door sill body 7. Obviously, the door sill body 7 is generally a concrete or steel structure, which itself has a large mass. Through the above-mentioned installation method, the operator does not need to overcome the gravity of the door sill body 7 to lift it, but only needs to overcome the friction between the door sill body 7 and the ground.

[0030] Preferably, a spring 10 is provided at the top of the movable groove 9, and the bottom of the spring 10 abuts against the locking portion 11. When the threshold body 7 is inserted and acts on the guide surface 12, the locking portion 11 rises and compresses the spring 10. When the locking portion 11 is aligned with the locking groove 15, the spring 10 is reset. The provision of the spring 10 allows the locking portion 11 to continue to abut against the ground after the threshold body 7 is installed, which can prevent the locking portion 11 and the locking groove 15 from accidentally disengaging to a certain extent.

[0031] In order to facilitate the subsequent disassembly of the threshold body 7, Figure 4 As shown, the door frame 8 is provided with an adjustment hole 6 at a position just above the installation groove, the adjustment hole 6 penetrates the outer surface of the door frame 8 and communicates with the movable groove 9, the locking portion 11 is fixedly provided with an adjustment portion 14, the adjustment portion 14 is located in the adjustment hole 6, and the adjustment portion 14 is moved to make the locking portion 11 leave the locking groove 15, and the threshold body 7 is pulled outward at this time, so that the threshold body 7 can be disassembled. If a spring 10 is provided in the movable groove 9, the elastic effect of the spring 10 needs to be overcome when the adjustment portion 14 is moved upward.

[0032] As an optional shape of the movable groove 9 and the locking portion 11, refer to Figure 3 , Figure 4 The cross sections of the movable groove 9 and the locking portion 11 are both square, and the guide surface 12 in the present embodiment can be an arc surface or a plane. Of course, according to needs, the cross sections of the movable groove 9 and the locking portion 11 can also be other suitable shapes such as a circle.

[0033] In this embodiment, the threshold body 7 can be configured as two rectangular parts, an upper part and a lower part, as shown in the accompanying drawings, wherein the lower part fits with the installation groove at the bottom of the door frame 8, and makes the locking groove 15 and the locking part 11 cooperate correspondingly, while the upper part fits with the inner side of the door frame 8. After installation, the height of the threshold body 7 can be increased to increase the sealing of the closed door 2 after closing.

[0034] (2) A movable groove 9 is provided on one side of the installation groove corresponding to the outer end surface of the threshold body 7, and a locking portion 11 is slidably arranged in the movable groove 9. A spring 10 is provided on the innermost side of the movable groove 9. The outer side of the spring 10 acts on the locking portion 11 so that the locking portion 11 extends into the installation groove in the initial state. A guide surface 12 is provided on the side of the locking portion 11 facing the installation of the threshold body 7. When the threshold body 7 is installed, the guide surface 12 acts on the locking portion 11 to displace and avoid the locking portion 11 until the locking portion 11 is aligned with the locking groove 15, and the spring 10 resets the locking portion 11 to move and embed into the locking groove 15. This embodiment does not provide a corresponding drawing. Compared with the first solution, this embodiment only changes the installation groove from being opened on the top to being opened on the side corresponding to the outer end surface of the threshold body 7. The outer end surface is as shown in FIG. Figure 3 The left and right end surfaces of the door sill body 7 correspond to the left side surface of the left mounting groove and the right side surface of the right mounting groove. As for the principle that the door sill body 7 slides into the mounting groove and the guide surface 12 makes the locking part 11 retracted and then locked, it is consistent with the first solution, so it will not be elaborated.

[0035] In order to facilitate the storage of the threshold body 7 in normal times, in this embodiment, a mounting shaft is provided on the outside of the door frame 8, and a sealed door 2 is mounted on the mounting shaft. The sealed door 2 includes an inner plate 3 on the inside, and a storage groove 4 is provided at the bottom of the sealed door 2. The storage groove 4 is partially located on the inner plate 3, and the thickness of the storage groove 4 is consistent with the thickness of the threshold body 7, so that the threshold body 7 can be completely stored in the storage groove 4. Obviously, the overall cross-section of the sealed door 2 is generally larger than the cross-section of the inside of the door frame 8. In this embodiment, the portion of the bottom of the threshold body 7 connected to the mounting groove is slightly larger than the overall width of the door frame 8, so that the threshold body 7 can be completely stored in the sealed door 2. A positioning block 5 is provided at the top of the storage slot 4, a positioning slot 13 is opened at the top of the threshold body 7, the positioning block 5 is slidably set in the inner plate 3, an adjustment slot is opened on the outer side of the inner plate 3, an adjustment block is fixedly installed on the outer side of the positioning block 5, and the adjustment block is located in the adjustment slot. When the threshold body 7 is stored, the bottom of the positioning block 5 is locked with the positioning slot 13, and the positioning block 5 is retracted into the inner plate 3 by pushing the adjustment block upward, so that the threshold body 7 is unlocked.

[0036] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A movable threshold for a closed door that is easy to disassemble and assemble, comprising a threshold body, wherein the threshold body is mounted at the bottom of a door frame, and the door frame is arranged in an installation wall, wherein: The door frame has an installation groove at the bottom thereof which is adapted to the threshold body. A locking portion is provided on the wall of the installation groove which slides toward the inside of the door frame. In an initial state, the locking portion extends out of the installation groove. The threshold body includes a locking groove which cooperates with the locking portion. When the threshold body slides into the installation groove, the locking portion acts on the threshold body to move the locking portion and retract it into the door frame until the locking portion is aligned with the locking groove. Then, the locking portion is reset and embedded in the locking groove to complete the locking.

2. The easy-to-disassemble and assemble closed door movable threshold as claimed in claim 1, characterized in that: A movable groove is formed on the top surface of the locking groove, and the locking part is slidably arranged in the movable groove. A guide surface is provided on the side of the locking part facing the installation of the threshold body. When the threshold body is installed, the guide surface acts on the locking part to raise the locking part. When the locking part is aligned with the locking groove, the locking part descends and is embedded in the locking groove, the locking part abuts against the locking groove on the side opposite to the guide surface to complete the locking.

3. The easy-to-disassemble and assemble closed door threshold as claimed in claim 2, characterized in that: A spring is provided at the top of the movable groove, and the bottom of the spring abuts against the locking portion. When the threshold body is inserted and acts on the guide surface, the locking portion rises and compresses the spring. When the locking portion is aligned with the locking groove, the spring resets.

4. The easy-to-disassemble and assemble closed door movable threshold as claimed in claim 3, characterized in that: The door frame is provided with an adjustment hole at a position directly above the installation groove, the adjustment hole passes through the outer surface of the door frame and communicates with the movable groove, the locking portion is fixedly provided with an adjustment portion, the adjustment portion is located in the adjustment hole, and the threshold body can be disassembled by moving the adjustment portion to make the locking portion leave the locking groove.

5. The easy-to-disassemble and assemble closed door movable threshold as claimed in claim 4, characterized in that: The cross sections of the movable groove and the locking portion are both square, and the guide surface is an arc surface or a plane.

6. The easy-to-disassemble and assemble closed door threshold as claimed in claim 1, characterized in that: A movable groove is formed on one side of the installation groove corresponding to the outer end surface of the threshold body, the locking portion is slidably arranged in the movable groove, a spring is arranged on the innermost side of the movable groove, the outer side of the spring acts on the locking portion to make the locking portion extend into the installation groove in an initial state, and a guide surface is provided on the side of the locking portion that is installed toward the threshold body, and when the threshold body is installed, the guide surface acts on the locking portion to make the locking portion move and avoid, until the locking portion is aligned with the locking groove, and the spring resets to make the locking portion move and embed into the locking groove.

7. The easy-to-assemble and disassemble closed door movable threshold according to claim 1, characterized in that: A mounting shaft is provided on the outside of the door frame, and a sealed door is installed on the mounting shaft. The sealed door includes an inner plate. A storage groove is opened at the bottom of the sealed door. The storage groove is partially located on the inner plate, and the thickness of the storage groove is consistent with the thickness of the threshold body, so that the threshold body can be completely received in the storage groove.

8. The easy-to-disassemble and assemble closed door threshold as claimed in claim 7, characterized in that: A positioning block is provided on the top of the storage slot, a positioning slot is opened on the top of the threshold body, the positioning block is slidably arranged in the inner plate, an adjustment slot is opened on the outer side of the inner plate, an adjustment block is fixedly installed on the outer side of the positioning block, the adjustment block is located in the adjustment slot, and when the threshold body is stored, the bottom of the positioning block is engaged with the positioning slot, and the positioning block is retracted into the inner plate by pushing the adjustment block upward, so that the threshold body is unlocked.

9. The easy-to-assemble and disassemble closed door threshold as claimed in claim 2, characterized in that: The threshold body includes two cuboid parts, an upper part and a lower part, wherein the lower part fits with the mounting groove at the bottom of the door frame, and the upper part fits with the inner side of the door frame.

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