Lifting adjusting hanging wheel

Abstract

The utility model discloses a lifting adjusting hanging wheel, belongs to the field of sliding door sliding parts, is used for sliding of a sliding door, and solves the problem of transmission efficiency of height adjustment of a door body. The utility model discloses a hanging box which comprises a left wheel frame, a right wheel frame and a middle partition plate, the left wheel frame and the right wheel frame are separated through the middle partition plate and detachably installed on the two sides of the middle partition plate, pulleys are rotatably installed on the outer side of the left wheel frame and the outer side of the right wheel frame, and a gear and rack mechanism used for lifting a hanging box is installed in the middle partition plate.

Description

Technical Field

[0001] The utility model belongs to the field of sliding parts of sliding doors, and particularly relates to a hanging wheel structure capable of adjusting the height of a door body. Background Art

[0002] In an existing sliding door system, two hanging wheels are installed on a door body, and the door body slides along a guide rail by using the hanging wheels. One hanging wheel is installed at one end of a buffer, and this hanging wheel is installed in a hanging box at one end of the door body, and the door body automatically buffers when closing by using the buffer; the other hanging wheel is installed as a single hanging wheel in a hanging box at the other end of the door body. During installation, the levelness of the door body is ensured by adjusting the height between the door body and the guide rail. The existing adjusting structure is to extend a screw rod from one side of the hanging box to be connected to the hanging wheel, and the lifting of the hanging box relative to the hanging wheel is controlled by adjusting the screw rod, so as to ensure the levelness of the door body. The assembly dimension of the above screw rod is large, which increases the manufacturing cost. At the same time, the transmission efficiency of the screw rod is not high, which brings inconvenience to the lifting adjustment. Content of the Utility Model

[0003] The purpose of the utility model is to provide a lifting-adjusting hanging wheel, which solves the problem of the transmission efficiency of the adjusting structure.

[0004] The lifting-adjusting hanging wheel includes a left wheel frame, a right wheel frame and a middle partition board. The left wheel frame and the right wheel frame are separated by the middle partition board. The left wheel frame and the right wheel frame are detachably installed on both sides of the middle partition board. Pulley wheels are rotatably installed on the outer sides of the left wheel frame and the right wheel frame respectively. A gear-rack mechanism for the lifting of the hanging box is installed inside the middle partition board.

[0005] The gear-rack mechanism includes a gear, a rack, an upper adjusting screw and a lower adjusting screw. The rack is arranged vertically and is connected to a horizontally arranged hanging box. The teeth of the gear are engaged with the tooth grooves of the rack. The upper adjusting screw passes through one end of the middle partition board and abuts against the upper end of the root of the gear. The lower adjusting screw passes through one end of the middle partition board and abuts against the lower end of the root of the gear. The root of the gear is rotatably connected to the middle partition board.

[0006] The rack and the hanging box are integrally formed.

[0007] One positioning groove is respectively arranged on both sides of the middle partition board. The left wheel frame and the right wheel frame are slidably installed in the positioning grooves correspondingly along the upper and lower ends.

[0008] One end of the positioning groove is open and the other end is closed. The open end of the positioning groove is located on the installation side of the upper adjusting screw and the lower adjusting screw.

[0009] Grooves are respectively arranged at the bottoms of the left wheel frame and the right wheel frame. Screw holes corresponding to the grooves are arranged at the bottom of the middle partition board. The screw holes and the grooves are connected by set screws.

[0010] Advantages of the present utility model: By driving the gear to rotate counterclockwise from the upper end of the gear root through the upper adjusting screw, the teeth of the gear drive the rack to move downward, thereby reducing the height of the hanging box; by driving the gear to rotate counterclockwise from the lower end of the gear root through the lower adjusting screw, the teeth of the gear drive the rack to move upward, thereby increasing the height of the hanging box. This gear-rack mechanism improves the transmission efficiency and facilitates the lifting and adjusting process. The left wheel frame, the right wheel frame and the middle partition board adopt a detachable assembly method. The left wheel frame and the right wheel frame are slidably installed from the open end of the positioning groove on the middle partition board and are slidably limited by the closed end of the positioning groove. This detachable installation structure can not only be quickly installed but also be conveniently disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a perspective view of the lifting and adjusting hanging wheel of the present utility model;

[0012] Figure 2 is Figure 1 an exploded view of

[0013] Figure 3 is Figure 1 the front view of the gear-rack mechanism shown in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Figure 1 , 2 , as shown in FIGS. 2 and 3, the lifting and adjusting hanging wheel is composed of a left wheel frame 2 with a pulley 1 installed on the side, a right wheel frame 3 with a pulley 1 installed on the side, a gear-rack mechanism 4 and a middle partition board 5. The left wheel frame 2 and the right wheel frame 3 are parallel to the middle partition board 5 and are separated on both sides by the middle partition board 5. A positioning groove 6 is provided on each side of the middle partition board 5. One end of the positioning groove 6 is open and the other end is closed. The left wheel frame 2 and the right wheel frame 3 are inserted from the upper and lower ends into the open end and are slidably installed in the positioning groove 6 correspondingly. The left wheel frame 2 and the right wheel frame 3 are limited by the closed end of the positioning groove 6. Since grooves 7 are provided at the bottoms of the left wheel frame 2 and the right wheel frame 3, screw holes corresponding to the grooves 7 are provided at the bottom of the middle partition board 5. The screw holes and the grooves 7 are connected by set screws 8. Therefore, the left wheel frame, the right wheel frame and the middle partition board are fixed as a whole by the set screws, and the pulley is used to slide along the guide rail installed on the ceiling. The left wheel frame, the right wheel frame and the middle partition board adopt a detachable assembly method. The left wheel frame and the right wheel frame are slidably installed from the open end of the positioning groove on the middle partition board and are slidably limited by the closed end of the positioning groove. This detachable installation structure can not only be quickly installed but also be conveniently disassembled and replaced.

[0016] The rack and pinion mechanism 4 includes a pinion 9, a rack 10, an upper adjusting screw 11 and a lower adjusting screw 12. The rack 10 is vertically arranged and connected to a horizontally arranged hanging box 13. The rack 10 and the hanging box 13 are integrally formed. The teeth 9a of the pinion 9 are engaged with the tooth grooves 10a of the rack 10. The upper adjusting screw 11 passes through one end of the middle partition plate 5 and abuts against the upper end of the pinion root 9b. The lower adjusting screw 12 passes through one end of the middle partition plate 5 and abuts against the lower end of the pinion root 9b. The pinion root 9b is connected to the middle partition plate 5 through a horizontally arranged rotating shaft. The adjusting sides of the upper adjusting screw 11 and the lower adjusting screw 12 are located on the opening side of the positioning groove 6. By driving the pinion 9 to rotate counterclockwise from the upper end of the pinion root 9b with the upper adjusting screw 11, the teeth 9a of the pinion 9 drive the rack 10 to move downward, so that the height of the hanging box 13 is reduced; by driving the pinion 9 to rotate counterclockwise from the lower end of the pinion root 9b with the lower adjusting screw 12, the teeth 9a of the pinion 9 drive the rack 10 to move upward, so that the height of the hanging box 13 is increased. This kind of rack and pinion mechanism improves the transmission efficiency and facilitates the lifting adjustment process.

Claims

1. Lifting and adjusting hanging wheel, characterized in that, It includes a left wheel frame (2), a right wheel frame (3) and a middle partition board (5). The left wheel frame (2) and the right wheel frame (3) are separated by the middle partition board (5). The left wheel frame (2) and the right wheel frame (3) are detachably installed on both sides of the middle partition board (5). Pulleys (1) are rotatably installed on the outer sides of the left wheel frame (2) and the right wheel frame (3). A gear-rack mechanism (4) for lifting the hanging box (13) is installed inside the middle partition board (5).

2. The lifting and adjusting hanging wheel according to claim 1, wherein The gear-rack mechanism (4) includes a gear (9), a rack (10), an upper adjusting screw (11) and a lower adjusting screw (12). The rack (10) is arranged vertically and is connected to the horizontally arranged hanging box (13). The teeth (9a) of the gear (9) mesh with the tooth grooves (10a) of the rack (10). The upper adjusting screw (11) passes through one end of the middle partition board (5) and abuts against the upper end of the gear root (9b). The lower adjusting screw (12) passes through one end of the middle partition board (5) and abuts against the lower end of the gear root (9b). The gear root (9b) is rotatably connected to the middle partition board (5).

3. The lifting and adjusting hanging wheel according to claim 2, wherein, The rack (10) and the hanging box (13) are integrally formed.

4. The lifting and adjusting hanging wheel according to claim 2, characterized in that, One positioning groove (6) is respectively arranged on both sides of the middle partition board (5). The left wheel frame (2) and the right wheel frame (3) are slidably installed in the positioning groove (6) correspondingly along the upper and lower ends.

5. The lifting and adjusting hanging wheel according to claim 4, characterized in that, One end of the positioning groove (6) is open and the other end is closed. The open end of the positioning groove (6) is located on the installation side of the upper adjusting screw (11) and the lower adjusting screw (12).

6. The lifting and adjusting hanging wheel according to claim 1, wherein Grooves (7) are arranged at the bottoms of the left wheel frame (2) and the right wheel frame (3). Screw holes corresponding to the grooves (7) are arranged at the bottom of the middle partition board (5). The screw holes and the grooves (7) are connected by set screws (8).

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