Self-locking type mute three-rail sliding door

Abstract

The utility model discloses a self-locking type silent three-rail sliding door which comprises a supporting frame and three door frames, the three door frames are all located in the inner space of the supporting frame, the bottom positions of the three door frames are all provided with abutting assemblies, and each abutting assembly comprises an abutting pipe which is connected with the outer wall of the bottom of the corresponding door frame in a sliding and inserted mode. The abutting pipe is fixedly connected with the door frame through bolts, the two ends of the abutting pipe are each slidably connected with a mounting sleeve in an inserted mode, the two mounting sleeves are fixedly connected with the abutting pipe through bolts, the inner wall of the top of the mounting sleeve close to the supporting frame is fixedly connected with a mounting plate, and the inner wall of the top of the mounting plate is rotationally connected with a lead screw; by arranging the abutting assembly, the front section of the sliding wheel in the moving direction can be cleaned, so that it is guaranteed that impurities on the outer side of the sliding rail cannot be in contact with the sliding wheel, and the situation that normal use of the sliding wheel is affected by the impurities is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, specifically a self-locking, silent three-track sliding door. Background Technology

[0002] Three-track sliding doors refer to sliding door systems that use three independent tracks. They typically support the independent sliding of three door panels, which can overlap, be staggered, or open and close independently, allowing for flexible space allocation. They are commonly used in locations such as balconies, kitchens, and conference rooms.

[0003] A search revealed a utility model patent with Chinese patent publication number CN215671911U, which discloses a sliding door with sound insulation function. The technical solution is a sliding door with sound insulation function, including a door frame, a door body one and a door body two disposed in the door frame, wherein the door body one includes an inner layer and an outer layer, and sound-absorbing cotton is filled between the inner layer and the outer layer.

[0004] As mentioned above, sliding doors are usually equipped with pulleys at the bottom to improve the smoothness of pushing. However, in daily life, some long hair or thread and other debris inevitably fall near the track. As the pulleys roll, they inevitably get tangled on the outside of the pivot. When these impurities increase, the resistance to the rolling of the pulleys also increases, making it inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a self-locking, silent three-track sliding door to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-locking, silent three-track sliding door, comprising a support frame and three door frames, all three door frames being located within the support frame's internal space. Each of the three door frames has an abutment component installed at its bottom. The abutment component includes an abutment tube slidably inserted into the outer wall of the bottom of the door frame, and the abutment tube is fixedly connected to the door frame by bolts. An installation sleeve is slidably inserted into both ends of the abutment tube, and two of the installation sleeves are fixedly connected to the abutment tube by bolts. An installation plate is fixedly connected to the inner top wall of one of the installation sleeves near the support frame. A lead screw is rotatably connected to the inner top wall of the installation plate. Two limiting rods are fixedly connected to the inner top wall of the installation plate. The two limiting rods are slidably fitted with the same moving block. The moving block is threaded onto the outside of the lead screw, and bristles are provided at the bottom of the moving block.

[0007] As a further preferred embodiment of this technical solution, a horizontally arranged transmission rod is rotatably connected inside the mounting sleeve. A transmission bevel gear is coaxially fixed at one end of the transmission rod near the lead screw. A driven bevel gear adapted to the transmission bevel gear is coaxially fixed at the top position of the lead screw. Two pulleys are rotatably connected inside the two mounting sleeves through bearings.

[0008] The front section of the pulley's movement direction can be cleaned to ensure that impurities on the outside of the slide rail do not come into contact with the pulley, effectively preventing impurities from affecting the normal use of the pulley. When the door frame moves, the bristles at the bottom of the moving block will also clean the outside of the slide rail. If there are impurities on the slide rail, the bristles will push them to the corner of the support frame. As the usage time increases, the bristles will become shorter or deformed due to wear. At this time, it will drive the transmission rod to rotate inside the mounting sleeve. The transmission bevel gear will rotate synchronously with the transmission rod. The transmission bevel gear meshes with the driven bevel gear, driving the lead screw to rotate. Under the drive of the lead screw, the moving block moves downward along the limit rod to ensure that the bristles keep in contact with the bottom wall of the support frame and the outer wall of the slide rail, which is conducive to improving the cleaning effect.

[0009] As a further preferred embodiment of this technical solution, the bottom inner wall of the support frame is provided with three slide rails, which are arranged in parallel. Four pulleys at the same level are all fitted on the outside of the same slide rail. The top inner wall of the support frame is provided with three limiting strips, and the top outer wall of the door frame is provided with a fitting groove that matches the limiting strips.

[0010] As a further preferred embodiment of this technical solution, each of the two door frames that are far apart from each other is equipped with a buffer assembly. The buffer assembly includes an installation groove opened on the outer wall of one side of the door frame, a connecting plate fixedly installed on the inner wall of one side of the installation groove, a horizontally arranged damping rod fixedly installed on the outer wall of one side of the connecting plate, and a contact plate coaxially fixed to one end of the damping rod near the support frame. The same spring is fixedly connected between the contact plate and the installation groove.

[0011] When the door frame is closed, the contact plate first contacts the support frame, the spring is compressed and deformed to store elastic potential energy, buffering the instantaneous impact force, the damping rod is compressed simultaneously, releases energy and rebounds, suppresses oscillation, and converts kinetic energy into heat energy, thereby buffering the impact force and preventing damage to the door frame.

[0012] As a further preferred embodiment of this technical solution, a glass plate is installed inside each of the three door frames, an extension strip is provided on the outer walls of both ends of the middle door frame, and an extension strip is provided on the outer walls of the two door frames on opposite sides at their far ends.

[0013] As a further preferred embodiment of this technical solution, the bearing between the pulley and the mounting sleeve is a double-row ball silent bearing.

[0014] As a further preferred embodiment of this technical solution, door locks are installed on the outer walls of the two door frames on opposite sides, and the door locks are magnetic self-locking type.

[0015] This utility model provides a self-locking, silent three-track sliding door, which has the following beneficial effects:

[0016] (1) By setting the abutment component, the front section of the pulley movement direction can be cleaned, thereby ensuring that the impurities on the outside of the slide rail will not be contacted by the pulley, effectively avoiding the impurities from affecting the normal use of the pulley. When the door frame moves, the bristles at the bottom of the moving block will also clean the outside of the slide rail. If there are impurities on the slide rail, the bristles will push them to the corner of the support frame. As the usage time increases, the bristles will become shorter or deformed due to wear. At this time, the transmission rod will be driven to rotate inside the mounting sleeve. The transmission bevel gear will rotate synchronously with the transmission rod. The transmission bevel gear meshes with the driven bevel gear, driving the screw to rotate. The moving block moves downward along the limit rod under the drive of the screw, ensuring that the bristles are in contact with the bottom wall of the support frame and the outer wall of the slide rail, which is conducive to improving the cleaning effect.

[0017] (2) By setting up a buffer component, when the door frame is closed, the contact plate will first contact the support frame, the spring will be compressed and deformed to store elastic potential energy, buffer the instantaneous impact force, the damping rod will be compressed synchronously, release energy and rebound, suppress oscillation, and convert kinetic energy into heat energy, thereby buffering the impact force and preventing damage to the door frame. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of the buffer component of this utility model;

[0021] Figure 4 This is an enlarged structural diagram of the abutment component of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0023] In the diagram: 1. Support frame; 2. Slide rail; 3. Door frame; 4. Glass plate; 5. Abutment assembly; 6. Buffer assembly; 7. Extension strip; 501. Abutment pipe; 502. Mounting sleeve; 503. Pulley; 504. Mounting plate; 505. Lead screw; 506. Limiting rod; 507. Moving block; 508. Transmission rod; 509. Transmission bevel gear; 601. Mounting groove; 602. Connecting plate; 603. Damping rod; 604. Contact plate; 605. Spring. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] This utility model provides a technical solution: such as Figure 2 , Figure 4 and Figure 5 As shown in this embodiment, a self-locking silent three-track sliding door includes a support frame 1 and three door frames 3. All three door frames 3 are located inside the support frame 1. Each of the three door frames 3 has an abutment component 5 installed at its bottom. The abutment component 5 includes an abutment tube 501 that is slidably inserted into the outer wall of the bottom of the door frame 3. The abutment tube 501 is fixedly connected to the door frame 3 by bolts. An installation sleeve 502 is slidably inserted into both ends of the abutment tube 501. Both installation sleeves 502 are fixedly connected to the abutment tube 501 by bolts. An installation plate 504 is fixedly connected to the inner wall of the top of one of the installation sleeves 502 near the support frame 1. A lead screw 505 is rotatably connected to the inner wall of the top of the installation plate 504. Two limit rods 506 are fixedly connected to the inner wall of the top of the installation plate 504. The two limit rods 506 are slidably fitted with the same moving block 507. The moving block 507 is threaded onto the outside of the lead screw 505, and the bottom of the moving block 507 is provided with bristles.

[0026] The mounting sleeve 502 is rotatably connected to a horizontally arranged transmission rod 508. A transmission bevel gear 509 is coaxially fixed at one end of the transmission rod 508 near the lead screw 505. A driven bevel gear adapted to the transmission bevel gear 509 is coaxially fixed at the top of the lead screw 505. Two pulleys 503 are rotatably connected inside the two mounting sleeves 502 through bearings.

[0027] When the door frame 3 moves, the bristles at the bottom of the moving block 507 will also clean the outside of the slide rail 2. If there are impurities on the slide rail 2, the bristles will push them to the corner of the support frame 1. As the usage time increases, the bristles will become shorter or deformed due to wear. At this time, the transmission rod 508 will be driven to rotate inside the mounting sleeve 502. The transmission bevel gear 509 will rotate synchronously with the transmission rod 508. The transmission bevel gear 509 will mesh with the driven bevel gear, driving the lead screw 505 to rotate. Under the drive of the lead screw 505, the moving block 507 will move downward along the limit rod 506 to ensure that the bristles are in contact with the bottom wall of the support frame 1 and the outer wall of the slide rail 2, which is beneficial to improving the cleaning effect.

[0028] like Figure 1 As shown in Figure 2, the bottom inner wall of the support frame 1 is provided with three slide rails 2, and the three slide rails 2 are arranged in parallel. Four pulleys 503 at the same level are all fitted on the outside of the same slide rail 2. The top inner wall of the support frame 1 is provided with three limiting strips, and the top outer wall of the door frame 3 is provided with a fitting groove that matches the limiting strips.

[0029] like Figure 2 and Figure 3As shown, each of the two door frames 3 that are far apart from each other is equipped with a buffer assembly 6. The buffer assembly 6 includes a mounting groove 601 opened on the outer wall of one side of the door frame 3. A connecting plate 602 is fixedly installed on the inner wall of one side of the mounting groove 601. A horizontally arranged damping rod 603 is fixedly installed on the outer wall of one side of the connecting plate 602. A contact plate 604 is coaxially fixed to one end of the damping rod 603 near the support frame 1. The same spring 605 is fixedly connected between the contact plate 604 and the mounting groove 601.

[0030] When the door frame 3 is closed, the contact plate 604 will first contact the support frame 1, the spring 605 will compress and deform to store elastic potential energy, buffer the instantaneous impact force, and the damping rod 603 will compress synchronously, release energy and rebound, suppress oscillation, and convert kinetic energy into heat energy, thereby buffering the impact force and preventing damage to the door frame 3.

[0031] like Figure 1 As shown in Figure 2, a glass plate 4 is installed inside each of the three door frames 3. An extension strip 7 is provided on the outer walls of both ends of the middle door frame 3. An extension strip 7 is also provided on the outer walls of the two door frames 3 on opposite sides. When the leftmost door frame 3 is pushed, the bottom of the door frame 3 can easily move along the slide rail 2 due to the presence of the pulley 503. When the extension strip 7 on the outer side of the door frame 3 contacts the extension strip 7 on the outer side of the middle door frame 3, the middle door frame 3 will be moved. Similarly, the right door frame 3 can also be moved by the middle door frame 3.

[0032] like Figure 4 As shown, the bearing between the pulley 503 and the mounting sleeve 502 is a double-row ball silent bearing, which makes the noise generated by the sliding door sufficiently small when it moves.

[0033] like Figure 1 As shown, door locks (not shown in the figure) are installed on the outer walls of the two door frames 3 on opposite sides, and the door locks are magnetic self-locking type (model GUT-102, double lock tongue linkage self-locking, anti-force-pry door).

[0034] This utility model provides a self-locking, silent three-track sliding door, the specific working principle of which is as follows:

[0035] When the device is in operation, pushing the leftmost door frame 3 allows it to easily move along the slide rail 2 due to the presence of the pulley 503 at its bottom. When the extension strip 7 on the outer side of the door frame 3 contacts the extension strip 7 on the outer side of the middle door frame 3, the middle door frame 3 will be moved. Similarly, the right door frame 3 can also be moved by the middle door frame 3. As the door frames 3 move, the bristles at the bottom of the moving block 507 will clean the outside of the slide rail 2. If there are impurities on the slide rail 2, the bristles will push them to the corner of the support frame 1. As the usage time increases, the bristles will become shorter or deformed due to wear. At this time, the transmission rod 508 will be driven to rotate inside the mounting sleeve 502, and the transmission bevel gear 509 will follow... As the transmission rod 508 rotates synchronously, the transmission bevel gear 509 meshes with the driven bevel gear, driving the lead screw 505 to rotate. Under the drive of the lead screw 505, the moving block 507 moves downward along the limit rod 506, ensuring that the bristles remain in contact with the bottom wall of the support frame 1 and the outer wall of the slide rail 2, which is beneficial to improving the cleaning effect. When the door frame 3 is closed, the contact plate 604 will first contact the support frame 1. The spring 605 is compressed and deformed to store elastic potential energy and buffer the instantaneous impact force. The damping rod 603 is compressed synchronously, releasing energy and rebounding to suppress oscillation and converting kinetic energy into heat energy, thereby buffering the impact force and preventing damage to the door frame 3. Finally, the lock tongue of the lock body inside the door frame 3 enters the slot inside the support frame 1 to complete the self-locking.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking, silent three-track sliding door, comprising a support frame (1) and three door frames (3), characterized in that: All three door frames (3) are located inside the support frame (1). Each of the three door frames (3) has an abutment component (5) installed at its bottom. The abutment component (5) includes an abutment tube (501) that is slidably inserted into the outer wall of the bottom of the door frame (3). The abutment tube (501) is fixedly connected to the door frame (3) by bolts. An installation sleeve (502) is slidably inserted into both ends of the abutment tube (501). Both installation sleeves (502) are fixedly connected to the abutment tube (501) by bolts. Next, a mounting plate (504) is fixedly connected to the inner top wall of a mounting sleeve (502) near the support frame (1). A lead screw (505) is rotatably connected to the inner top wall of the mounting plate (504). Two limiting rods (506) are fixedly connected to the inner top wall of the mounting plate (504). The two limiting rods (506) are slidably sleeved on the same moving block (507). The moving block (507) is threaded on the outside of the lead screw (505), and the bottom of the moving block (507) is provided with bristles.

2. The self-locking silent three-track sliding door according to claim 1, characterized in that: The mounting sleeve (502) is rotatably connected to a horizontally arranged transmission rod (508). A transmission bevel gear (509) is coaxially fixed at one end of the transmission rod (508) near the lead screw (505). A driven bevel gear adapted to the transmission bevel gear (509) is coaxially fixed at the top of the lead screw (505). Two pulleys (503) are rotatably connected inside the two mounting sleeves (502) through bearings.

3. The self-locking silent three-track sliding door according to claim 1, characterized in that: The bottom inner wall of the support frame (1) is provided with three slide rails (2), and the three slide rails (2) are arranged in parallel. Four pulleys (503) at the same level are all sleeved on the outside of the same slide rail (2). The top inner wall of the support frame (1) is provided with three limiting strips, and the top outer wall of the door frame (3) is provided with a sleeve groove that matches the limiting strips.

4. A self-locking, silent three-track sliding door according to claim 1, characterized in that: Each of the two door frames (3) that are far apart from each other is equipped with a buffer assembly (6). The buffer assembly (6) includes an installation groove (601) opened on the outer wall of one side of the door frame (3). A connecting plate (602) is fixedly installed on the inner wall of one side of the installation groove (601). A horizontally arranged damping rod (603) is fixedly installed on the outer wall of one side of the connecting plate (602). A contact plate (604) is coaxially fixed at one end of the damping rod (603) near the support frame (1). The same spring (605) is fixedly connected between the contact plate (604) and the installation groove (601).

5. A self-locking, silent three-track sliding door according to claim 1, characterized in that: Each of the three door frames (3) has a glass plate (4) installed inside. The outer walls of both ends of the middle door frame (3) are provided with an extension strip (7), and the outer walls of the two door frames (3) on both sides that are far apart from each other are provided with an extension strip (7).

6. A self-locking, silent three-track sliding door according to claim 2, characterized in that: The bearing between the pulley (503) and the mounting sleeve (502) is a double-row ball silent bearing.

7. A self-locking, silent three-track sliding door according to claim 1, characterized in that: Both of the two door frames (3) on opposite sides are equipped with door locks on their outer walls, and the door locks are magnetic self-locking type.

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