Linkage lifting sealing threshold

Abstract

The utility model discloses a linkage lifting sealing doorsill, and relates to the technical field of protective sealing doors. Comprising a fixing base used for being installed on a door leaf; the locking head is in sliding connection with the fixed seat in the vertical direction, and the diameter of the lower end of the locking head is reduced to form a step; the sealing doorsill is connected to the lower end of the locking head in a sliding mode, and a stop pin for preventing the sealing doorsill from being separated is further arranged on the portion, located on the lower side of the sealing doorsill, of the locking head; and the lock box is pre-buried in the ground right facing the lower portion of the locking head, and a lock hole used for allowing the lower end of the locking head to be inserted in is formed in the top of the lock box. The sealing performance can be guaranteed without any height difference inside and outside the door, and free passing of vehicles can be achieved without consuming extra manpower.

Description

Technical Field

[0001] The utility model relates to the technical field of protective sealed doors, in particular to a linked lifting sealed door sill. Background Art

[0002] Most existing protective closed doors and closed doors are equipped with threshold structures to ensure the continuity of the seal, but the height difference of the threshold makes it difficult for vehicles to pass through. There are also many large closed doors that use detachable movable thresholds to ensure the passability of vehicles, but because of their heavy weight, it is difficult for one person to operate. There are also some lifting closed doors that require manual laying of bridge boards in front of the door after the door leaf is opened to ensure the passage of vehicles. After the vehicles pass through, the bridge boards need to be removed, which is very inconvenient.

[0003] Therefore, how to develop a threshold structure that is convenient for vehicles to pass through and ensures a sealing effect is one of the problems that need to be solved urgently. Utility Model Content

[0004] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the utility model is to provide a linked lifting sealing threshold, which does not require any height difference between the inside and outside of the door to ensure sealing, and can achieve free passage of vehicles without consuming additional manpower.

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

[0006] A linkage lifting sealing threshold, comprising:

[0007] A fixing base, used for installation on a door leaf;

[0008] A locking head is slidably connected to the fixing seat in a vertical direction, and the lower end of the locking head is reduced in diameter to form a step;

[0009] The sealing threshold is slidably connected to the lower end of the locking head, and a stop pin is provided on the lower side of the sealing threshold to prevent the sealing threshold from being separated;

[0010] The lock box is pre-buried in the ground directly below the locking head, and the top of the lock box is provided with a lock hole for inserting the lower end of the locking head.

[0011] In certain embodiments of the present invention, a sealing strip is provided on the side of the sealing threshold facing the door leaf.

[0012] In some embodiments of the present invention, two locking heads are arranged side by side.

[0013] In certain embodiments of the present invention, two fixing seats are arranged on the locking head at intervals in the vertical direction.

[0014] In certain embodiments of the present invention, the locking head comprises a square guide segment and a circular segment, one of the fixing seats is slidably connected to the square guide segment, and the other fixing seat is slidably connected to the circular segment.

[0015] In some embodiments of the present invention, the locking hole is waist-shaped.

[0016] In certain embodiments of the present invention, a threshold connecting seat is fixedly connected to the sealing threshold, and the threshold connecting seat is slidably connected to the lower end of the locking head.

[0017] In certain embodiments of the present invention, the stop pin is detachably connected to the lower end of the locking head.

[0018] In some embodiments of the present invention, the detachable connection is a plug-in or threaded connection.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model cooperates the sealing threshold with the locking head. When the door is locked, the sealing threshold is lowered to the ground with the locking head to form a seal. At the same time, the locking head enters the lock box to achieve the purpose of locking. When the door is unlocked, the sealing threshold is raised with the locking head and separated from the ground, which is convenient for vehicles to pass freely. The utility model does not require any height difference to ensure the sealing performance, and can realize the free passage of vehicles without consuming additional manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the locking head structure of the utility model.

[0023] Figure 3 This is a schematic diagram of the lock box structure of the utility model.

[0024] Figure 4 This is a schematic diagram of the cooperation between the locking head and the lock box of the utility model.

[0025] Figure 5 It is a top view of the utility model.

[0026] Figure 6 Figure 5 Schematic diagram of the first state at AA in the middle.

[0027] Figure 7 for Figure 5 Schematic diagram of the second state at AA in the middle.

[0028] Figure 8 for Figure 5 Schematic diagram of the third state at AA in the middle.

[0029] In the figure:

[0030] 1. Fixed seat; 11. First fixed seat; 12. Second fixed seat;

[0031] 2. Locking head; 21. Square guide section; 22. Round section; 23. Step; 24. Stop pin;

[0032] 3. Sealing threshold; 31. Sealing strip;

[0033] 4. Lock box; 41. Keyhole;

[0034] 5. Threshold connector. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1 The present embodiment provides a linkage lifting sealing threshold, including a fixing seat 1, a locking head 2, a sealing threshold 3 and a locking box 4.

[0037] The fixing seat 1 is used to be installed on the door leaf, is fixedly connected to the door leaf, and moves with the opening and closing of the door leaf.

[0038] The locking head 2 is connected to the fixing seat 1 by sliding along the vertical direction. Figure 2 The diameter of the lower end of the locking head 2 is reduced to form a step 23.

[0039] It is worth mentioning that, in order to enhance the fixing effect, two fixing seats 1 are arranged at intervals along the vertical direction on the locking head 2, namely, a first fixing seat 11 and a second fixing seat 12. At the same time, in order to prevent the locking head 2 from rotating freely in the fixing seat, the locking head 2 includes a square guide section 21 and a circular section 22, wherein the second fixing seat 12 is slidably connected to the square guide section 21 to limit the locking head from rotating freely; the first fixing seat 11 is slidably connected to the circular section 22.

[0040] The sealing threshold 3 is slidably connected to the lower end of the locking head 2, and the specific position is within a section where the diameter is reduced. In order to further enhance the sealing effect, a sealing strip 31 is arranged on one side of the sealing threshold 3 facing the door leaf.

[0041] The locking head 2 is also provided with a stop pin 24 on the lower side of the sealing threshold to prevent the sealing threshold 3 from being disengaged.

[0042] In order to facilitate the installation of the sealing threshold 3 , a threshold connecting seat 5 is fixedly connected to the sealing threshold 3 , and the threshold connecting seat 5 is slidably connected to the lower end of the locking head 2 .

[0043] It is worth mentioning that the interval between the stop pin 24 and the step 23 is greater than the height of the sealing threshold 3 , so that the sealing threshold 3 can slide freely between the stop pin 24 and the step 23 .

[0044] At the same time, in order to enhance the stability of the sealing threshold 3 , two locking heads 2 are arranged side by side, and two fixing seats 1 are arranged on each locking head 2 .

[0045] The lock box 4 is pre-buried in the ground directly below the locking head 2. Figure 3 The top of the lock box 4 is provided with a lock hole 41 for inserting the lower end of the locking head 2. In order to accommodate the existence of the stop pin 24, the lock hole 41 is waist-shaped.

[0046] Please refer to Figure 4 When the locking head 2 descends, the stop pin 24 descends into the lock hole 41 along with the locking head, so that the door leaf can be locked. It is worth mentioning that the door leaf is opened in the horizontal direction.

[0047] In the above solution, in order to realize the installation and removal of the sealing threshold 3, the stop pin 24 and the lower end of the locking head 2 are detachably connected, specifically, plug-in or threaded connection.

[0048] During the locking process, Figure 5 The AA cross-sectional view shown can be roughly divided into three states.

[0049] It should be noted that Figures 6 to Figure 8 In the figure, the omitted part on the left side of the vertical dotted line represents the door leaf, and the horizontal dotted line represents the ground.

[0050] As shown in FIG. 6 , in the initial state, the locking head 2 is completely above the ground, and the sealing threshold 3 is blocked by the stop pin 24 and does not contact the ground.

[0051] like Figure 7 As shown, as the locking head 2 moves downward into the locking hole 41 , the sealing threshold 3 moves downward therewith until it contacts the ground. At this time, the locking head 2

[0052] like Figure 8 As shown, at this time, since the sealing threshold 3 has touched the ground and cannot move further downward, the locking head 2 continues to move downward alone until the step 23 contacts the sealing threshold 3 and applies a certain pressure to the sealing threshold. The pressure eventually presses the sealing strip 31 to the junction of the door leaf and the ground to achieve a tight seal.

[0053] The unlocking process is the opposite of the locking process. Figure 8, Figure 7 , the state of Figure 6 will not be repeated here.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A linkage lifting sealing threshold, characterized in that: include: A fixing base, used for installation on a door leaf; A locking head is slidably connected to the fixing seat in a vertical direction, and the lower end of the locking head is reduced in diameter to form a step; The sealing threshold is slidably connected to the lower end of the locking head, and a stop pin is provided on the lower side of the sealing threshold to prevent the sealing threshold from being separated; The lock box is pre-buried in the ground directly below the locking head, and the top of the lock box is provided with a lock hole for inserting the lower end of the locking head.

2. The linkage lifting sealing threshold according to claim 1, characterized in that: A sealing strip is arranged on the side of the sealing threshold facing the door leaf.

3. The linkage lifting sealing threshold according to claim 1, characterized in that: The locking heads are arranged in two parallel rows.

4. A linkage lifting sealing threshold according to claim 1 or 3, characterized in that: The locking head is provided with two fixing seats at intervals in the vertical direction.

5. The linkage lifting sealing threshold according to claim 4, characterized in that: The locking head comprises a square guide section and a circular section, wherein one of the fixing seats is slidably connected to the square guide section, and the other fixing seat is slidably connected to the circular section.

6. The linkage lifting sealing threshold according to claim 1, characterized in that: The lock hole is waist-shaped.

7. The linkage lifting sealing threshold according to claim 1, characterized in that: A threshold connection seat is fixedly connected to the sealing threshold, and the threshold connection seat is slidably connected to the lower end of the locking head.

8. The linkage lifting sealing threshold according to claim 1, characterized in that: The stop pin is detachably connected to the lower end of the locking head.

9. The linkage lifting sealing threshold according to claim 8, characterized in that: The detachable connection is a plug-in or threaded connection.

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