Hidden drawer guide rail capable of preventing jamming

Abstract

The utility model relates to the technical field of drawer guide rails, and discloses an anti-locking hidden drawer guide rail which comprises a drawer body, the bottom of the drawer body is connected with a movable guide rail through bolts, a movable rotating shaft is fixedly installed on the front face of the movable guide rail, and movable rolling wheels are rotatably installed on the outer wall of the movable rotating shaft. According to the hidden drawer guide rail capable of preventing jamming, when a drawer is drawn out, due to the fact that a friction block is attached to a fixed guide rail, the drawer can firstly drive a movable guide rail to move, at the moment, a hollow rod can be pulled by a connecting rod, an eccentric column drives a rotating rod to rotate, a scraping plate is turned over, and when the eccentric column does not rotate, a sliding block can be pulled at the moment; when the drawer is pushed inwards, the scraper blade is in an overturning state and cannot clean the bottom of the fixed guide rail, otherwise, when the drawer is pushed inwards, the scraper blade is overturned firstly, and then the scraper blade cleans the bottom of the fixed guide rail, so that impurities can be prevented from entering the drawer, and the clamping phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of drawer slide technology, specifically a concealed drawer slide that can prevent jamming. Background Technology

[0002] The main function of drawer slides is to guide and support the movement of drawers, ensuring that they open and close smoothly. By reducing friction, drawer slides make it easier to push and pull drawers, while also ensuring the stability and durability of the drawers.

[0003] When a drawer is pulled out, the moving guide rail moves within the fixed guide rail. However, small impurities may get into the guide rail, causing the drawer to jam during the process. In severe cases, the moving guide rail may become stuck with the fixed guide rail. This requires disassembling the moving guide rail from the fixed guide rail, cleaning it, and then reinstalling it. This process is not only tedious but also time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide a concealed drawer slide that can prevent jamming, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concealed drawer slide that prevents jamming, comprising a drawer body, a movable guide rail connected to the bottom of the drawer body by bolts, a movable pivot fixedly mounted on the front of the movable guide rail, a movable roller rotatably mounted on the outer wall of the movable pivot, the bottom of the movable roller fitting against the fixed guide rail, a fixed pivot fixedly mounted on the back of the fixed guide rail, a fixed roller rotatably mounted on the outer wall of the fixed pivot, a cleaning mechanism provided on the left side of the movable guide rail, and a sweeping mechanism provided on the front of the movable guide rail, the cleaning mechanism comprising:

[0006] A movable groove is formed on the front of the movable guide rail, and a slider is slidably installed inside the movable groove;

[0007] The rotating rod is rotatably mounted on the outer wall of the slider through hole, and an eccentric column is fixedly installed at the eccentric part of the rotating rod, which can drive the rotating rod to rotate when the hollow rod is pushed.

[0008] Preferably, a hollow rod is attached to the outer wall of the eccentric column, and a connecting rod is fixedly installed on the left side of the hollow rod, which can pull or push the hollow rod to move, thereby causing the eccentric column to rotate.

[0009] Preferably, the end of the connecting rod away from the hollow rod is fixedly installed on the right side of the moving guide rail, a scraper is fixedly installed on the outer wall of the rotating rod, and a fixing rod is fixedly installed on the top of the slider, which can raise the friction block so that it contacts the top of the inner wall of the fixed guide rail.

[0010] Preferably, a friction block is fixedly installed on the top of the fixed rod to increase the friction force, so that when the moving guide rail moves, it first drives the scraper to flip, and then drives the scraper to move. The top of the friction block is attached to the top of the inner wall of the fixed guide rail.

[0011] Preferably, the cleaning mechanism includes: a connecting rod, the left side of which is hinged to the right side of the scraper, and a movable column is hinged to the end of the connecting rod away from the scraper.

[0012] Preferably, an L-shaped rod is fixedly installed on the front of the movable guide rail to guide and fix the movable column. The outer wall of the movable column passes through the through hole of the L-shaped rod and is slidably connected at the through hole. A cleaning plate is fixedly installed on the right side of the movable column so that when the brush on the cleaning plate comes into contact with the movable roller, the movable roller rotates, allowing the brush to clean it.

[0013] Compared with the prior art, this utility model provides a concealed drawer slide that can prevent jamming, and has the following beneficial effects:

[0014] 1. This anti-jamming concealed drawer slide works by first moving the sliding rail when the drawer is pulled out, due to the friction block engaging with the fixed rail. At this time, the hollow rod is pulled by the connecting rod, causing the eccentric column to rotate, which in turn flips the scraper. When the eccentric column can no longer rotate, the slider is pulled, and the scraper is in a flipped state, preventing it from cleaning the bottom of the fixed rail. Conversely, when the drawer is pushed in, the scraper flips first, then cleans the bottom of the fixed rail. This prevents impurities from entering and causing jamming.

[0015] 2. The concealed drawer slide that prevents jamming allows the scraper to flip when the middle drawer is pulled outwards. When the scraper flips, it pushes the connecting rod, causing the moving column to move towards the moving roller. This allows the brush on the cleaning board to contact the moving roller, and the brush can clean the moving roller as it rolls, preventing impurities from adhering to the surface of the moving roller and causing it to jam when moving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of a partial three-dimensional cross-sectional view of the main body of this utility model;

[0018] Figure 3 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0020] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Drawer body; 2. Sliding guide rail; 3. Sliding pivot; 4. Sliding roller; 5. Fixed guide rail; 6. Fixed pivot; 7. Fixed roller; 8. Cleaning mechanism; 81. Sliding groove; 82. Slider; 83. Rotating rod; 84. Eccentric column; 85. Hollow rod; 86. Connecting rod; 87. Scraper; 88. Fixed rod; 89. Friction block; 9. Cleaning mechanism; 91. Connecting rod; 92. Sliding column; 93. L-shaped rod; 94. Cleaning plate. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: a concealed drawer slide that can prevent jamming, including a drawer body 1, a movable guide rail 2 connected to the bottom of the drawer body 1 by bolts, a movable pivot 3 fixedly installed on the front of the movable guide rail 2, a movable roller 4 rotatably installed on the outer wall of the movable pivot 3, a fixed guide rail 5 attached to the bottom of the movable roller 4, a fixed pivot 6 fixedly installed on the back of the fixed guide rail 5, a fixed roller 7 rotatably installed on the outer wall of the fixed pivot 6, a cleaning mechanism 8 provided on the left side of the movable guide rail 2, and a sweeping mechanism 9 provided on the front of the movable guide rail 2.

[0023] Specifically, the cleaning mechanism 8 includes: a moving groove 81, a slider 82, a rotating rod 83, an eccentric column 84, a hollow rod 85, a connecting rod 86, a scraper 87, a fixed rod 88, and a friction block 89. The moving groove 81 is located on the front of the moving guide rail 2. The slider 82 is slidably installed inside the moving groove 81. The outer wall of the rotating rod 83 is rotatably installed at the through hole of the slider 82. An eccentric column 84 is fixedly installed at the eccentric part of the rotating rod 83. The hollow rod 85 is attached to the outer wall of the eccentric column 84. A connecting rod 86 is fixedly installed on the left side of the hollow rod 85. The end of the connecting rod 86 away from the hollow rod 85 is fixedly installed on the right side of the moving guide rail 2. A scraper 87 is fixedly installed on the outer wall of the rotating rod 83. When the connecting rod 86 moves, the hollow rod 85 also moves. When the hollow rod 85 moves, it drives the eccentric column 84 to rotate. The movement causes the rotating rod 83 to rotate, and the scraper 87 will be flipped over at this time. Conversely, when pushed back, the scraper 87 will flip back. This allows the scraper 87 to clean the fixed guide rail 5 when the moving guide rail 2 is pulled outward, but to clean the fixed guide rail 5 when pushed inward. This can prevent impurities from entering and causing jamming. A fixed rod 88 is fixedly installed on the top of the slider 82, and a friction block 89 is fixedly installed on the top of the fixed rod 88. The top of the friction block 89 is attached to the top of the inner wall of the fixed guide rail 5. When the drawer body 1 is pulled out, the friction force increases because the friction block 89 is attached to the fixed guide rail 5. Therefore, when the drawer body 1 is pulled out, it will first drive the moving guide rail 2 to move. When the moving guide rail 2 moves, it will drive the connecting rod 86 to move.

[0024] Specifically, the cleaning mechanism 9 includes: a connecting rod 91, a moving column 92, an L-shaped rod 93, and a cleaning plate 94. The left side of the connecting rod 91 is hinged to the right side of the scraper 87. The end of the connecting rod 91 away from the scraper 87 is hinged to the moving column 92. The L-shaped rod 93 is fixedly installed on the front of the moving guide rail 2. When the drawer body 1 is pulled outward, the scraper 87 will flip. When the scraper 87 flips, it will push the connecting rod 91, causing the moving column 92 to move towards the moving roller 4 at the through hole of the L-shaped rod 93. The outer wall of the moving column 92 passes through the through hole of the L-shaped rod 93 and is slidably connected at the through hole. The cleaning plate 94 is fixedly installed on the right side of the moving column 92. When the moving column 92 moves, it will drive the cleaning plate 94 to move, so that the brush on the cleaning plate 94 can contact the moving roller 4. When the moving roller 4 rolls, the brush can clean it.

[0025] Working principle: After the fixed guide rail 5 is fixed with bolts, the movable guide rail 2 is inserted into the fixed guide rail 5. When the drawer body 1 is pulled out, the friction block 89 is in contact with the fixed guide rail 5, increasing the friction. Therefore, when the drawer body 1 is pulled out, it will first drive the movable guide rail 2 to move. When the movable guide rail 2 moves, it will drive the connecting rod 86 to move. At this time, the hollow rod 85 will also move. When the hollow rod 85 moves, it will drive the eccentric column 84 to rotate, thereby causing the rotating rod 83 to rotate. The scraper 87 will be flipped at this time. At this time, the movable slider 82 moves outward from the moving groove 81. Then the movable guide rail 2 continues to move. At this time, the hollow rod 85 cannot pull the eccentric column 84 to rotate, so the slider 82 will be pulled, causing the flipped scraper 87 to move. The bottom of the fixed guide rail 5 will not be cleaned. Instead, when the drawer body 1 is pushed inward, the connecting rod 86 will first push the hollow rod 85, causing the eccentric column 84 to reset. This will cause the rotating rod 83 to drive the scraper 87 to reset. At this time, the slider 82 moves into the moving groove 81. When the hollow rod 85 can no longer push the eccentric column 84, the hollow rod 85 continues to be pushed by the connecting rod 86, which will drive the slider 82 to move together. At this time, the scraper 87 is in a vertical state. During the movement, the bottom of the fixed guide rail 5 will be cleaned. This way, when the moving guide rail 2 is pulled outward, the scraper 87 will not clean the fixed guide rail 5, but when it is pushed inward, the scraper 87 will clean the fixed guide rail 5. This can prevent impurities from entering and causing jamming.

[0026] When the drawer body 1 is pulled outward, the scraper 87 will flip. When the scraper 87 flips, it will push the connecting rod 91, causing the moving column 92 to move towards the moving roller 4 at the through hole of the L-shaped rod 93. At this time, the cleaning plate 94 will also move, so that the brush on the cleaning plate 94 can contact the moving roller 4. When the moving roller 4 rolls, the brush can clean it. At this time, the scraper 87 is in the flipped state. When it is pushed back, the scraper 87 is in the vertical state, which can clean the impurities on the moving roller 4 that have been cleaned onto the fixed guide rail 5. This can prevent impurities from adhering to the surface of the moving roller 4, which would cause it to jam when moving.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A concealed drawer slide that prevents jamming, comprising a drawer body (1), characterized in that: The bottom of the drawer body (1) is connected to a movable guide rail (2) by bolts. A movable pivot (3) is fixedly installed on the front of the movable guide rail (2). A movable roller (4) is rotatably installed on the outer wall of the movable pivot (3). A fixed guide rail (5) is attached to the bottom of the movable roller (4). A fixed pivot (6) is fixedly installed on the back of the fixed guide rail (5). A fixed roller (7) is rotatably installed on the outer wall of the fixed pivot (6). A cleaning mechanism (8) is provided on the left side of the movable guide rail (2). A cleaning mechanism (9) is provided on the front of the movable guide rail (2). The cleaning mechanism (8) includes: A movable groove (81) is formed on the front of the movable guide rail (2), and a slider (82) is slidably installed inside the movable groove (81); A rotating rod (83) is rotatably mounted on the outer wall of the slider (82) at the through hole, and an eccentric column (84) is fixedly mounted on the eccentric part of the rotating rod (83).

2. The concealed drawer slide with anti-jamming feature according to claim 1, characterized in that: A hollow rod (85) is attached to the outer wall of the eccentric column (84), and a connecting rod (86) is fixedly installed on the left side of the hollow rod (85).

3. The concealed drawer slide with anti-jamming capability according to claim 2, characterized in that: The end of the connecting rod (86) away from the hollow rod (85) is fixedly installed on the right side of the moving guide rail (2), a scraper (87) is fixedly installed on the outer wall of the rotating rod (83), and a fixing rod (88) is fixedly installed on the top of the slider (82).

4. The concealed drawer slide with anti-jamming feature according to claim 3, characterized in that: A friction block (89) is fixedly installed on the top of the fixed rod (88), and the top of the friction block (89) is attached to the top of the inner wall of the fixed guide rail (5).

5. A concealed drawer slide with anti-jamming capability according to claim 3, characterized in that: The cleaning mechanism (9) includes a connecting rod (91), the left side of which is hinged to the right side of the scraper (87), and a movable column (92) is hinged to the end of the connecting rod (91) away from the scraper (87).

6. The concealed drawer slide with anti-jamming capability according to claim 5, characterized in that: An L-shaped rod (93) is fixedly installed on the front of the movable guide rail (2). The outer wall of the movable column (92) passes through the through hole of the L-shaped rod (93) and is slidably connected at the through hole. A cleaning plate (94) is fixedly installed on the right side of the movable column (92).

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