Pulley module for sliding doors and windows

Abstract

The utility model provides a pulley module for door and window sliding. The pulley module is used for solving the technical problems that an existing door and window pulley module is not changed in installation, and abrasion of a guide wheel is large in the sliding process. Comprising a pulley body, and a plurality of guide wheel sets and bearing wheel sets which are alternately arranged in the length direction of the pulley body; the guide wheel set comprises a plurality of guide wheels which are sequentially arranged at intervals in the width direction of the pulley body, the bearing wheel set comprises a plurality of bearing wheels which are sequentially arranged at intervals in the width direction of the pulley body, and annular grooves are formed in the outer walls of the guide wheels. The guide wheel sets and the bearing wheel sets are alternately arranged, the guide stability in the door and window sliding process is improved through the guide wheel sets, abrasion of the guide wheel sets is reduced through the bearing wheel sets, and the service life of a product is prolonged.

Description

Technical Field

[0001] This invention relates to the field of door and window pulleys, and in particular to a pulley module for sliding doors and windows. Background Technology

[0002] Existing door and window pulley modules all use single-row grooved pulleys for guidance and load-bearing. The grooved pulleys improve stability during sliding. However, single-row grooved pulleys suffer from high friction between the pulley grooves and the guide rail, and are inconvenient to install.

[0003] In the patent application CN 218816007 U, titled "An Easy-to-Install and Easy-to-Maintain Double-Row Concealed Wheel Lower Rail Structure for Thermal Break," left and right mounting grooves are respectively set on the bottom surface of the I-beam frame. Left and right rollers are then embedded in these grooves and secured to the left and right guide rails. While this patent achieves stable sliding of doors and windows, the large contact area between the grooved rollers and the guide rails during sliding results in high friction, easily causing damage and affecting their service life. Furthermore, installation requires clamping the interference-fit rollers into the mounting grooves, making installation cumbersome and extremely inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a pulley module for sliding doors and windows. This addresses the technical problems of existing door and window pulley modules having fixed installation requirements and significant wear on the guide wheels during sliding.

[0005] A pulley module for sliding doors and windows includes a pulley body and a plurality of guide wheel groups and load-bearing wheel groups alternately arranged along the length direction of the pulley body;

[0006] The guide wheel assembly includes a plurality of guide wheels arranged at intervals along the width direction of the pulley body, and the load-bearing wheel assembly includes a plurality of load-bearing wheels arranged at intervals along the width direction of the pulley body. An annular groove is formed on the outer wall of the guide wheel.

[0007] Optionally, a positioning groove extending through its length is provided on the upper surface of the pulley body.

[0008] Optionally, the pulley body is provided with several mounting grooves that penetrate its upper and lower end faces;

[0009] The mounting slots are arranged in a rectangular array, and the guide wheels and load-bearing wheels are rotatably installed in the mounting slots.

[0010] Optionally, each group of guide wheels includes two guide wheels, and each group of load-bearing wheels includes two load-bearing wheels;

[0011] The two guide wheels of the guide wheel assembly and the two load-bearing wheels of the load-bearing wheel assembly are symmetrically arranged along the central axis of the positioning groove along its length.

[0012] Optionally, the pulley body is provided with a plurality of reverse stepped holes spaced apart.

[0013] The reverse stepped hole is located in the positioning groove, and the reverse stepped hole penetrates the lower end face of the pulley body and the bottom surface of the positioning groove.

[0014] Optionally, it may also include several guide rails installed in parallel within the slide rail groove;

[0015] The guide rails are arranged along the length of the positioning groove, and the number of the guide rails is the same as the number of guide wheels in the guide wheel assembly and the number of load-bearing wheels in the load-bearing wheel assembly.

[0016] Optionally, the outer wall of the load-bearing wheel abuts against the guide rail, and the annular groove of the guide wheel is engaged with the upper end surface of the guide rail.

[0017] Optionally, it also includes an I-shaped connector, which includes an upper connecting block, a connecting post, and a lower connecting block connected in sequence.

[0018] The upper connecting block of the I-shaped connector is connected to the window sash or door sash of the sliding door, and several pulley modules are installed at equal intervals on the lower connecting block.

[0019] Optionally, guide bevels are provided at the upper end of the sidewall of the positioning groove and the lower end of the sidewall of the lower connecting block;

[0020] The upper end of the side wall of the lower connecting block is provided with a reinforcing lug. When the positioning groove is engaged with the lower connecting block, the lower end face of the reinforcing lug abuts against the upper end face of the pulley body.

[0021] Because of the adoption of the above technical solution, the present invention has the following advantages:

[0022] 1. This application uses alternating guide wheel groups and load-bearing wheel groups. The guide wheel groups improve the guiding stability during the sliding process of doors and windows, while the load-bearing wheel groups reduce the wear of the guide wheel groups and increase the product's lifespan.

[0023] 2. This application achieves the connection between the I-shaped connector and the pulley body by setting a positioning groove to cooperate with the lower connecting block and by passing screws through the reverse stepped hole. The installation and disassembly of the pulley module are convenient, reducing the difficulty of its installation and maintenance.

[0024] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0025] The accompanying drawings of this invention are described below.

[0026] Figure 1 This is a schematic diagram of the rear structure of the pulley module of the present invention.

[0027] Figure 2 This is a schematic diagram of the front structure of the pulley module of the present invention.

[0028] Figure 3 This is a schematic diagram of the pulley module of the present invention installed in the slide groove.

[0029] Figure 4 This is a schematic diagram of the structure of the I-shaped connector of the present invention.

[0030] In the diagram: 1-Pulley body; 2-Guide wheel; 3-Bearing wheel; 4-Annular groove; 5-Positioning groove; 6-Mounting groove; 7-Reverse stepped hole; 8-Guide rail; 9-I-shaped connector; 901-Upper connecting block; 902-Connecting column; 903-Lower connecting block; 904-Reinforcing lug; 10-Guide angle; 11-Slide groove. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Example:

[0033] like Figure 1 and 2 The pulley module shown includes a pulley body 1, and a plurality of guide wheel groups and load-bearing wheel groups alternately arranged along the length direction of the pulley body 1.

[0034] The guide wheel assembly includes a plurality of guide wheels 2 arranged at intervals along the width direction of the pulley body 1, and the load-bearing wheel assembly includes a plurality of load-bearing wheels 3 arranged at intervals along the width direction of the pulley body 1. An annular groove 4 is provided on the outer wall of the guide wheel 2.

[0035] like Figure 1 and 2 As shown, a positioning groove 5 extending through its length is provided on the upper surface of the pulley body 1.

[0036] like Figure 3As shown, it also includes several guide rails 8 installed in parallel in the slide rail groove. The guide rails 8 are arranged along the length direction of the positioning groove 5. The number of guide rails 8 is the same as the number of guide wheels 2 in the guide wheel group and the number of load-bearing wheels 3 in the load-bearing wheel group.

[0037] As one embodiment of this application, the load-bearing wheel 3 and the guide wheel 2 are installed in a staggered manner in the vertical direction, so that the outer wall of the load-bearing wheel 3 abuts against the guide rail 8, and the annular groove 4 of the guide wheel 2 is gap-locked onto the upper end surface of the guide rail 8.

[0038] In this embodiment, by alternately setting the guide wheel group and the load-bearing wheel group, and making the outer wall of the load-bearing wheel 3 abut against the guide rail 8, a smaller gap is initially left between the guide wheel 2 and the guide rail 8. This reduces the contact area between the annular groove 4 and the guide rail 8 during the sliding of the door and window, reduces friction, and improves the service life of the guide wheel 2. At the same time, stable guidance is achieved during the sliding of the door and window.

[0039] In this embodiment, the number of guide wheel sets and load-bearing wheel sets can be the same or different, such as... Figure 1 and 2 As shown, this is a combination of 3 sets of load-bearing rollers and 2 sets of guide rollers. In each load-bearing roller set and guide roller set, the number of guide rollers 2 and load-bearing rollers 3 is the same, with couplings of 2, 4, 6, etc. They are symmetrically arranged along the central axis of the positioning groove 5, which improves the stability of the door or window support. Figure 1 As shown, in both the single set of load-bearing wheels and the guide wheel set, there are two guide wheels 2 and two load-bearing wheels 3, and two guide rails 8.

[0040] like Figure 1 and Figure 2 As shown, the pulley body 1 has several mounting grooves 6 that penetrate its upper and lower end faces;

[0041] The mounting slots 6 are arranged in a rectangular array, and the guide wheels 2 and load-bearing wheels 3 are rotatably installed in the mounting slots 6.

[0042] In this embodiment, the shafts of both the guide wheel 2 and the load-bearing wheel 3 are perpendicular to the sliding direction of the door and window.

[0043] like Figure 1 and Figure 2 As shown, the pulley body 1 is provided with a plurality of reverse stepped holes 7 spaced apart.

[0044] The reverse stepped hole 7 is located in the positioning groove 5, and the reverse stepped hole 7 penetrates the lower end face of the pulley body 1 and the bottom surface of the positioning groove 5.

[0045] like Figure 4As shown, it also includes an I-shaped connector 9, which includes an upper connecting block 901, a connecting post 902 and a lower connecting block 903 connected in sequence.

[0046] The upper connecting block of the I-shaped connector 9 is connected to the window sash or door sash of the sliding door, and several pulley modules are installed at equal intervals on the lower connecting block 903.

[0047] In this embodiment, during actual installation, the pulley module and the lower connecting block 903 are connected by the I-shaped connector 9, placing them within the slide groove 11, which reduces the width of the slide groove. In this embodiment, the lower end face of the lower connecting block 903 has several threaded holes machined according to the spacing of the reverse stepped holes 7. During pulley module installation, the lower connecting block 903 is inserted into the positioning groove 5, the screw is inserted into the reverse stepped holes 7, and then screwed into the threaded holes on the lower connecting block 903 to install the pulley module. Repeating the above steps allows for the installation of several pulley modules. The installation and disassembly of the pulley modules are convenient, reducing the difficulty of installation and maintenance. In this embodiment, the length of the lower connecting block 903 is the same as the length of the sliding door or window sash. To ensure sliding stability, the number of pulley modules on a single sliding door or window sash is no less than two sets.

[0048] like Figure 3 and Figure 4 As shown, the upper end of the sidewall of the positioning groove 5 and the lower end of the sidewall of the lower connecting block 903 are provided with guide bevel angle 10.

[0049] The upper end of the side wall of the lower connecting block 903 is provided with a reinforcing lug 904. When the positioning groove 5 is engaged with the lower connecting block 903, the lower end surface of the reinforcing lug 904 abuts against the upper end surface of the pulley body 1.

[0050] In this embodiment, by setting a guide angle 10, it is convenient for the lower connecting block 903 to be inserted into the positioning groove 5. By setting a reinforcing support ear 904, when the upper door leaf or window leaf is subjected to a lateral force, the support strength of its I-shaped connector 9 and the stability of the connection between the I-shaped connector 9 and the pulley body 1 are guaranteed.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A pulley module for sliding doors and windows, characterized in that, It includes a pulley body (1), and a plurality of guide wheel groups and load-bearing wheel groups alternately arranged along the length direction of the pulley body (1); The guide wheel assembly includes a plurality of guide wheels (2) arranged sequentially at intervals along the width direction of the pulley body (1), and the load-bearing wheel assembly includes a plurality of load-bearing wheels (3) arranged sequentially at intervals along the width direction of the pulley body (1). An annular groove (4) is provided on the outer wall of the guide wheel (2).

2. The pulley module for sliding doors and windows according to claim 1, characterized in that, The pulley body (1) has a positioning groove (5) that runs through its length on its upper surface.

3. A pulley module for sliding doors and windows according to claim 2, characterized in that, The pulley body (1) is provided with several mounting grooves (6) that penetrate its upper and lower end faces; The mounting slots (6) are arranged in a rectangular array, and the guide wheels (2) and load-bearing wheels (3) are rotatably installed in the mounting slots (6).

4. A pulley module for sliding doors and windows according to claim 2, characterized in that, Each set of guide wheels includes two guide wheels (2), and each set of load-bearing wheels includes two load-bearing wheels (3); The two guide wheels (2) of the guide wheel assembly and the two load-bearing wheels (3) of the load-bearing wheel assembly are symmetrically arranged along the central axis of the positioning groove (5) along its length.

5. A pulley module for sliding doors and windows according to claim 2, characterized in that, The pulley body (1) is provided with a plurality of reverse stepped holes (7) spaced apart. The reverse stepped hole (7) is located in the positioning groove (5), and the reverse stepped hole (7) penetrates the lower end face of the pulley body (1) and the bottom surface of the positioning groove (5).

6. A pulley module for sliding doors and windows according to claim 2, characterized in that, It also includes several guide rails (8) installed in parallel within the slide rail groove; The guide rail (8) is arranged along the length direction of the positioning groove (5), and the number of the guide rail (8) is the same as the number of guide wheels (2) in the guide wheel group and the number of load-bearing wheels (3) in the load-bearing wheel group.

7. A pulley module for sliding doors and windows according to claim 6, characterized in that, The outer wall of the load-bearing wheel (3) abuts against the guide rail (8), and the annular groove (4) of the guide wheel (2) is positioned on the upper surface of the guide rail (8).

8. A pulley module for sliding doors and windows according to claim 7, characterized in that, It also includes an I-shaped connector (9), which includes an upper connecting block (901), a connecting post (902), and a lower connecting block (903) connected in sequence; The upper connecting block of the I-shaped connector (9) is connected to the window sash or door sash of the sliding door and window, and several pulley modules are installed at equal intervals on the lower connecting block (903).

9. A pulley module for sliding doors and windows according to claim 8, characterized in that, The upper end of the sidewall of the positioning groove (5) and the lower end of the sidewall of the lower connecting block (903) are provided with guide bevels (10); The upper end of the side wall of the lower connecting block (903) is provided with a reinforcing lug (904). When the positioning groove (5) is engaged with the lower connecting block (903), the lower end face of the reinforcing lug (904) abuts against the upper end face of the pulley body (1).

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