Detachable soundproof door lower doorsill

Abstract

The utility model relates to the technical field of soundproof doors, in particular to a detachable soundproof door lower doorsill. Comprising a door frame and a lower doorsill, the two ends of the lower doorsill are connected with the door frame through a locking mechanism, the locking mechanism comprises a mounting frame, a cover plate located at the top of the mounting frame and a locking groove formed in the door frame, no less than two sets of limiting plates are arranged in the mounting frame, and sliding grooves are formed in the limiting plates; sliding rods are slidably connected into the sliding grooves, one ends of the sliding rods are provided with lock tongues, the lock tongues are located in the locking grooves, and the sliding rods are provided with L-shaped push rods driving the sliding rods to slide in the sliding grooves. The locking mechanisms are installed at the two ends of the lower doorsill, the lower doorsill can be rapidly installed and detached, the existence of the lower doorsill is reserved, hindrance in the carrying process can be reduced, and the requirements for passing of mechanical equipment and the sound insulation effect of the sound insulation door are met.

Description

Technical Field

[0001] This utility model relates to the field of soundproof door technology, specifically to a detachable lower threshold of a soundproof door. Background Technology

[0002] Large double-leaf soundproof doors on the market usually have a threshold installed at the bottom to improve their sound insulation effect. However, when heavy machinery such as forklifts or goods need to be moved on site, the presence of the threshold will affect the passage of the machinery. But if the threshold is removed, the overall sound insulation of the soundproof door will be affected, and noise will leak through the gap at the bottom of the door, resulting in low sound insulation efficiency. Therefore, there is an urgent need for a detachable threshold for soundproof doors. When machinery needs to pass through, the threshold can be removed and then reinstalled after the machinery has passed through. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a detachable lower threshold for a soundproof door. By disassembling and installing the lower threshold, the requirements for the passage of mechanical equipment and the sound insulation of the door can be met.

[0004] To achieve the above technical objectives, this utility model proposes the following technical solution: a detachable soundproof door sill, including a door frame and a sill, with both ends of the sill connected to the door frame via a locking mechanism. The locking mechanism includes a mounting frame, a cover plate at the top of the mounting frame, and a locking groove on the door frame. The mounting frame contains at least two sets of limiting plates, each with a sliding groove. A sliding rod is slidably connected to each sliding groove, with a locking tongue at one end of the sliding rod located within the locking groove. An L-shaped push rod is provided on the sliding rod to drive it to slide within the sliding groove. A return spring is provided within the mounting frame, with one end connected to the sliding rod. The sliding of the sliding rod within the sliding groove enables the locking and unlocking of the locking tongue.

[0005] Furthermore, there are two sets of locking grooves and sliding grooves on the limiting plate. Guide posts are fixed to the opposite surfaces of the two sets of sliding rods, and the guide posts are connected by a return spring.

[0006] Furthermore, the top of the cover plate is provided with a mounting hole, and a lead screw is threadedly connected to the L-shaped push rod. One end of the lead screw is rotatably installed at the bottom of the mounting frame, and the other end of the lead screw is located in the mounting hole and has an internal hexagonal hole at the end. When the lead screw rotates, it can realize that the slide rod can slide relative to or opposite to each other in the slide groove.

[0007] Furthermore, a dust cover is provided inside the mounting hole.

[0008] Furthermore, the locking groove includes an isosceles trapezoidal groove, a trapezoidal groove, and an arc-shaped groove located at the top of the bottom of the trapezoidal groove. The top bottom of the isosceles trapezoidal groove is connected to the waist of the lower side of the trapezoidal groove, and the top bottom of the trapezoidal groove is connected to the arc-shaped groove.

[0009] Furthermore, the size of the locking tongue is adapted to the arc-shaped groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By installing locking mechanisms at both ends of the lower sill, this utility model enables the rapid installation and removal of the lower sill, thus preserving its existence while reducing obstruction during transportation, satisfying the passage of mechanical equipment and the sound insulation effect of the soundproof door; by rotating the screw, the two sliding rods slide relative to or away from each other in the sliding groove, driving the movement of the two locking tongues, so that the locking tongues lock and unlock in the locking groove, and the installation and removal of the lower sill can be achieved with just an Allen wrench, making the operation more convenient and faster. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional structural diagram of the locking mechanism of this utility model;

[0013] Figure 3 This is a schematic diagram of the locking groove on the door frame of this utility model;

[0014] Figure 4 This is a side view of the door frame structure of this utility model.

[0015] In the diagram, 1. Door frame; 2. Lower threshold; 3. Locking mechanism; 31. Mounting frame; 32. Cover plate; 33. Locking groove; 331. Isosceles trapezoidal groove; 332. Trapezoidal groove; 333. Arc groove; 34. Limiting plate; 35. Slide groove; 36. Slide rod; 37. Lock tongue; 38. L-shaped push rod; 39. Return spring; 310. Guide post; 311. Mounting hole; 312. Lead screw; 4. Dust cover. Detailed Implementation

[0016] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1-4As shown, this utility model provides a detachable soundproof door sill, including a door frame 1 and a lower sill 2. The two ends of the lower sill 2 are connected to the door frame 1 by a locking mechanism 3. The locking mechanism 3 includes a mounting frame 31, a cover plate 32 located on the top of the mounting frame 31, and a locking groove 33 opened on the door frame 1. The mounting frame 31 is provided with not less than two sets of limiting plates 34. Each limiting plate 34 is provided with a sliding groove 35. A sliding rod 36 is slidably connected in each sliding groove 35. One end of the sliding rod 36 is provided with a locking tongue 37. The locking tongue 37 is located in the locking groove 33. The sliding rod 36 is provided with an L-shaped push rod 38 for driving the sliding rod 36 to slide in the sliding groove 35. The mounting frame 31 is provided with a return spring 39. One end of the return spring 39 is connected to the sliding rod 36. The sliding of the sliding rod 36 in the sliding groove 35 can realize the locking and unlocking of the locking tongue 37.

[0018] like Figure 1 and Figure 2 As shown, the lower sill 2 is pushed inward, and the latch 37 aligns with the opening end of the locking groove 33, allowing the latch 37 to enter from one side of the locking groove 33. During the entry process, the return spring 39 is compressed and contracted until the latch 37 is fully inserted into the locking groove 33. The return spring 39 then returns to its original position, driving the slide rod 36 to return to its original position. The latch 37 presses against the top of the locking groove 33, thus fixing the lower sill 2 to the door frame 1. When it is necessary to remove the lower sill 2 from the door frame 1, the L-shaped push rod 38 can be driven, causing the return spring 39 to contract and driving the slide rod 36 to slide in the slide groove 35. This pushes the slide rod 36 to move towards the other end of the slide groove 35 and drives the lower sill 2 to move outward, causing the latch 37 to move towards the opening of the locking groove 33, thereby removing the lower sill 2 from the door frame 1 and reducing obstruction to handling or mechanical equipment.

[0019] The number of locking grooves 33 and sliding grooves 35 on the limiting plate 34 are both two sets. Guide posts 310 are fixedly connected to the opposite surfaces of the two sets of sliding rods 36. The guide posts 310 are connected by a reset spring 39. The function of the guide posts 310 is to guide the reset spring 39 to move in and out along the direction of the guide posts 310.

[0020] like Figure 2 and 3 As shown, when the lower sill 2 is installed on the door frame 1, during the process of the two latches 37 entering the locking groove 35, the return spring 39 is compressed, which drives the two sets of sliding rods 36 to move relative to each other until they move to the innermost part of the locking groove 35. The return spring 39 then returns to its original position, and the sliding rods 36 drive the latches 37 to press against the locking groove 35, thus completing the installation of the lower sill 2. During disassembly, by driving the two sets of L-shaped push rods 38, the two sets of sliding rods 36 move relative to each other, and the return spring 39 is compressed, making it easier to move the latches 37 out of the locking groove 35. The locking effect can be improved by using the two sets of latches 37 and the locking groove 35.

[0021] The top of the cover plate 32 is provided with a mounting hole 311. The L-shaped push rod 38 is threaded with a lead screw 312. One end of the lead screw 312 is rotatably mounted on the bottom of the mounting frame 31. The other end of the lead screw 312 is located in the mounting hole 311 and has an internal hexagonal hole at the end. When the lead screw 312 rotates, it can enable the slide rod 36 to slide relative to or opposite to each other in the slide groove 35.

[0022] like Figure 2 As shown, take an Allen wrench from the toolbox, insert the Allen wrench into the Allen hole, and turn the Allen wrench to drive the screw 312 to rotate. When the screw 312 rotates, it drives the slide bar 36 to move relative to or away from each other. When moving relative to each other, the return spring 39 is compressed. When moving away from each other, the return spring 39 is reset, so that the locking tongue 37 presses against the positioning groove 35.

[0023] A dust cover 4 is provided inside the mounting hole 311.

[0024] like Figure 2 As shown, the dust cover 4 can prevent dust and other impurities from entering the internal hexagonal hole, thus affecting the performance of the internal hexagonal wrench.

[0025] The locking groove 33 includes an isosceles trapezoidal groove 331, a trapezoidal groove 332, and an arc-shaped groove 333 located at the top of the bottom of the trapezoidal groove 332. The top bottom of the isosceles trapezoidal groove 331 is connected to the waist of the lower side of the trapezoidal groove 332, and the top bottom of the trapezoidal groove 332 is connected to the arc-shaped groove 333.

[0026] like Figure 3 and Figure 4 As shown, during the installation process, the locking tongue 37 enters from the bottom of the isosceles trapezoidal groove 331. During the entry process, under the action of the two sides of the isosceles trapezoidal groove 331, the return spring 39 is compressed until the locking tongue 37 enters the trapezoidal groove 332. After entering the trapezoidal groove 332, the vertical space in the trapezoidal groove 332 increases, the return spring 39 returns to its original position, and drives the locking tongue 37 into the arc groove 333, thereby realizing the installation of the lower sill 2.

[0027] The locking tongue 37 is adapted to the size of the arc-shaped groove 333.

[0028] like Figure 4 As shown, the locking tongue 37 is limited within the arc-shaped groove 333, which can prevent the lower sill 2 from shaking after installation and improve the installation effect.

[0029] Operating principle: During installation, the return spring 39 is in a compressed state. Align the latch 37 with the bottom of the isosceles trapezoidal groove 331, and push the lower sill 2 to move the latch 37 towards the trapezoidal groove 332 until the latch 37 enters the trapezoidal groove 332. Then, insert the Allen wrench into the Allen hole and turn it to rotate the screw 312, causing the slide bar 36 to move backward, moving the latch 37 towards the arc groove 333. The return spring 39 returns to its original position until the latch 37 enters the arc groove 333 and is pressed against the top of the arc groove 333, completing the installation of the lower sill 2. When mechanical equipment passes through, the lower sill 2 needs to be disassembled. During disassembly, the screw 312 is turned in the opposite direction by using an Allen wrench, causing the slide bar 36 to move the locking tongue 37 relative to it. The locking tongue 37 moves away from the arc groove 333, the return spring 39 is compressed, and the locking tongue 37 is located at the bottom of the trapezoidal groove 332. Then, the lower sill 2 is pushed towards the isosceles trapezoidal groove 331, pushing the locking tongue 37 out of the isosceles trapezoidal groove 332, thus completing the disassembly of the lower sill 2. In this utility model, the installation and disassembly of the lower sill can be achieved with just an Allen wrench, which brings convenience to the workers' disassembly and assembly work.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A detachable soundproof door sill, comprising a door frame (1) and a sill (2), characterized in that: The two ends of the lower threshold (2) are connected to the door frame (1) by a locking mechanism (3). The locking mechanism (3) includes a mounting frame (31), a cover plate (32) located on the top of the mounting frame (31), and a locking groove (33) opened on the door frame (1). The mounting frame (31) is provided with no less than two sets of limiting plates (34). Each limiting plate (34) is provided with a sliding groove (35). Each sliding groove (35) is slidably connected with a sliding rod (36). The slide rod (36) has a locking tongue (37) at one end, which is located in the locking groove (33). The slide rod (36) is provided with an L-shaped push rod (38) that drives the slide rod (36) to slide in the groove (35). The mounting frame (31) is provided with a return spring (39), one end of which is connected to the slide rod (36). The sliding of the slide rod (36) in the groove (35) can realize the locking and opening of the locking tongue (37).

2. The detachable soundproof door sill as described in claim 1, characterized in that: The number of locking grooves (33) and sliding grooves (35) on the limiting plate (34) are both two sets. Guide posts (310) are fixed on the opposite surfaces of the two sets of sliding rods (36). The guide posts (310) are connected to each other by a reset spring (39).

3. The detachable soundproof door sill as described in claim 2, characterized in that: The top of the cover plate (32) is provided with a mounting hole (311). A screw rod (312) is threaded onto the L-shaped push rod (38). One end of the screw rod (312) is rotatably mounted on the bottom of the mounting frame (31). The other end of the screw rod (312) is located in the mounting hole (311) and has an internal hexagonal hole at the end. When the screw rod (312) rotates, it can enable the slide rod (36) to slide relative to or opposite to each other in the slide groove (35).

4. The detachable soundproof door sill as described in claim 3, characterized in that: A dust cover (4) is provided inside the mounting hole (311).

5. The detachable soundproof door sill as described in claim 1, characterized in that: The locking groove (33) includes an isosceles trapezoidal groove (331), a trapezoidal groove (332), and an arc-shaped groove (333) located at the top of the bottom of the trapezoidal groove (332). The bottom of the isosceles trapezoidal groove (331) is connected to the waist of the lower side of the trapezoidal groove (332), and the bottom of the trapezoidal groove (332) is connected to the arc-shaped groove.

6. The detachable soundproof door sill as described in claim 5, characterized in that: The locking tongue (37) is adapted to the size of the arc groove (333).

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