Pulley structure

Abstract

The utility model relates to the technical field of sliding door pulleys, in particular to a pulley structure which comprises a bottom plate, a reinforcing plate, two rotating pins, two idler wheels and an I-shaped plate, the reinforcing plate is fixedly connected with the bottom plate, the I-shaped plate is fixedly connected with the bottom plate, the two rotating pins are both fixedly connected with the bottom plate, and the two idler wheels are both rotatably connected with the corresponding rotating pins. The framework formed by the reinforcing plate, the bottom plate and the I-shaped plate is fixed to the connecting piece, the connecting channel steel sequentially penetrates through the rolling wheels and the I-shaped plate, at the moment, the sliding door below the connecting piece can transversely move, the sliding stability of the sliding door is guaranteed in the mode, the stuck situation is reduced, and convenience is improved for a user.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding door pulleys, in particular to a pulley structure. Background Art

[0002] With the development of the door and window industry, sliding door pulleys refer to the wheels at the upper and lower ends of sliding doors that can make the doors slide. They are important components of mobile sliding doors. The design of sliding door pulleys makes the movement of doors smooth. They are crucial hardware components in the sliding door system. According to different materials and application scenarios, sliding door pulleys can be divided into various types, including plastic pulleys, metal pulleys, and fiberglass pulleys, etc. Each type of pulley has its unique advantages and scope of application. For example, metal pulleys have high strength and are suitable for occasions that need to bear a large weight.

[0003] For existing sliding doors, in order to ensure the sliding performance of the door leaves, generally rollers are installed on the sliding doors, and the rollers are rotatably connected to the track.

[0004] When there are foreign objects in the current track or the track is uneven, it will affect the stability of the sliding door during sliding, resulting in the sliding door getting stuck. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pulley structure, aiming to solve the problem that when there are foreign objects in the current track or the track is uneven, it will affect the stability of the sliding door during sliding, resulting in the sliding door getting stuck.

[0006] To achieve the above purpose, the utility model provides a pulley structure, which includes a bottom plate, a reinforcing plate, two rotating pins, two rollers, and an I-shaped plate. The reinforcing plate is fixedly connected to the bottom plate and is located above the bottom plate. The I-shaped plate is fixedly connected to the bottom plate and is located above the bottom plate. Both of the two rotating pins are fixedly connected to the bottom plate and are respectively located above the bottom plate. Both of the two rollers are rotatably connected to the corresponding rotating pins and are located on the outer side walls of the rotating pins.

[0007] The framework formed by the reinforcing plate, the bottom plate, and the I-shaped plate is fixed to the connecting piece. The connecting channel steel passes through the rollers and the I-shaped plate in sequence. At this time, the sliding door below the connecting piece can move horizontally. In this way, the stability of the sliding door during sliding is ensured, the occurrence of jamming is reduced, and the convenience of users is improved.

[0008] Wherein, the bottom plate, the reinforcing plate, and the I-shaped plate respectively have mounting holes.

[0009] The mounting holes are used to connect with the sliding door, facilitating the operation and use of installers.

[0010] Wherein, the bottom plate has a first arc chamfer.

[0011] The first arc chamfer can remove the burrs on the edge of the part, making the part smoother, thereby enhancing the overall aesthetics of the product.

[0012] Wherein, the rotating pin has a second arc chamfer.

[0013] The second arc chamfer can better install the roller during the assembly process, playing a role in guiding and positioning, making it easier and more accurate for the parts to be assembled in place.

[0014] Wherein, the pulley structure further includes an auxiliary unit, and the auxiliary unit is arranged on one side of the reinforcing plate.

[0015] The addition of the auxiliary unit is to facilitate the installation of the connecting channel steel by the staff, and can also improve the stability of the roller, reducing the occurrence of jamming.

[0016] Wherein, the auxiliary unit includes a hollow column, a sliding rod, a spring, a limiting rod, a base and a rubber wheel. The hollow column is fixedly connected to the reinforcing plate and is located on one side of the reinforcing plate. The sliding rod is fixedly connected to the hollow column and is located on the inner side wall of the hollow column. One end of the spring is fixedly connected to the hollow column and is located on the inner bottom wall of the hollow column. The other end of the spring is fixedly connected to the sliding rod and is located at one end of the sliding rod. The base is fixedly connected to the sliding rod and is located at the end of the sliding rod away from the spring. The rubber wheel is rotatably connected to the base and is located on the inner side wall of the base. The limiting rod is fixedly connected to the sliding rod and is located on the outer side wall of the sliding rod. The hollow column has a limiting groove, and the limiting groove is in sliding fit with the limiting rod.

[0017] When the rubber wheel enters the connecting channel steel, the base abuts against the sliding rod to move rightward in the hollow column, causing the spring to be compressed. Also, due to the characteristics of the spring, it abuts against the inner wall of the rubber wheel and the connecting channel steel. In this way, it is convenient for the staff to install the connecting channel steel, and can also improve the stability of the roller, reducing the occurrence of jamming.

[0018] In a pulley structure of the present utility model, the framework composed of the reinforcing plate, the bottom plate and the I-shaped plate is fixed to the connecting piece, and the connecting channel steel passes through the roller and the I-shaped plate in sequence. At this time, the sliding door below the connecting piece can move horizontally, ensuring the stability when the sliding door slides in this way, reducing the occurrence of jamming, and improving the convenience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0020] Figure 1 It is a schematic structural diagram of the whole of the first embodiment of the present utility model.

[0021] Figure 2 It is a front view of the whole of the first embodiment of the present utility model.

[0022] Figure 3 It is a top view of the whole of the first embodiment of the present utility model.

[0023] Figure 4 It is a right view of the whole of the first embodiment of the present utility model.

[0024] Figure 5 It is a schematic structural diagram of the whole of the second embodiment of the present utility model.

[0025] Figure 6 It is a cross-sectional view of the whole of the second embodiment of the present utility model.

[0026] Figure 7 It is a schematic working structural diagram of the pulley structure of the present utility model.

[0027] 101 - bottom plate, 102 - reinforcing plate, 103 - rotating pin, 104 - roller, 105 - I-shaped plate, 106 - mounting hole, 107 - first circular chamfer, 108 - second circular chamfer, 201 - hollow column, 202 - sliding rod, 203 - spring, 204 - limiting rod, 205 - base, 206 - rubber wheel, 207 - limiting groove. Detailed implementation manners

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0029] First embodiment:

[0030] Please refer to Figures 1 to 4 , wherein, Figure 1 is a schematic structural diagram of the whole of the first embodiment of the present utility model, Figure 2 is a front view of the whole of the first embodiment of the present utility model, Figure 3 is a top view of the whole of the first embodiment of the present utility model, Figure 4 is a right view of the whole of the first embodiment of the present utility model.

[0031] The utility model provides a pulley structure, which includes a bottom plate 101, a reinforcing plate 102, two rotating pins 103, two rollers 104 and an I-shaped plate 105. The bottom plate 101, the reinforcing plate 102 and the I-shaped plate 105 respectively have mounting holes 106. The bottom plate 101 has a first arc chamfer 107, and the rotating pin 103 has a second arc chamfer 108.

[0032] For this specific embodiment, the reinforcing plate 102 is fixedly connected to the bottom plate 101 and is located above the bottom plate 101. The I-shaped plate 105 is fixedly connected to the bottom plate 101 and is located above the bottom plate 101. Both of the two rotating pins 103 are fixedly connected to the bottom plate 101 and are respectively located above the bottom plate 101. Both of the two rollers 104 are rotatably connected to the corresponding rotating pins 103 and are located on the outer side walls of the rotating pins 103. The framework formed by the reinforcing plate 102, the bottom plate 101 and the I-shaped plate 105 is fixed to a connecting piece. A connecting channel steel passes through the rollers 104 and the I-shaped plate 105 in sequence. At this time, the sliding door below the connecting piece can move horizontally. In this way, the stability of the sliding door during sliding is ensured, the occurrence of jamming is reduced, and the convenience of the user is improved.

[0033] Among them, the bottom plate 101, the reinforcing plate 102 and the I-shaped plate 105 respectively have mounting holes 106. The mounting holes 106 are used to connect with the sliding door, which is convenient for installers to operate and use.

[0034] Secondly, the bottom plate 101 has a first arc chamfer 107. The first arc chamfer 107 can remove the burrs on the edge of the part, make the part smoother, and thus improve the overall aesthetics of the product.

[0035] At the same time, the rotating pin 103 has a second arc chamfer 108. The second arc chamfer 108 can better install the roller 104 during the assembly process, play a guiding and positioning role, and make the parts easier and more accurate to be assembled in place.

[0036] When using the pulley structure of the present utility model, the framework formed by the reinforcing plate 102, the bottom plate 101 and the I-shaped plate 105 is fixed to the connecting piece. The connecting channel steel passes through the roller 104 and the I-shaped plate 105 in sequence. At this time, the sliding door below the connecting piece can realize lateral movement. The mounting hole 106 is used to connect with the sliding door, facilitating the operation and use of installers. The first arc chamfer 107 can remove the burrs on the edge of the part, making the part smoother, thereby enhancing the overall aesthetics of the product. The second arc chamfer 108 can better install the roller 104 during the assembly process, playing a role in guiding and positioning, making it easier and more accurate for the parts to be assembled in place. In this way, the stability of the sliding door during sliding is ensured, the occurrence of jamming is reduced, and the convenience of users is improved.

[0037] Second Embodiment:

[0038] Based on the first embodiment, please refer to Figures 5 to 7 , wherein, Figure 5 is the overall structural schematic diagram of the second embodiment of the present utility model, Figure 6 is the overall sectional view of the second embodiment of the present utility model, Figure 7 is the working structural schematic diagram of the pulley structure of the present utility model.

[0039] The present utility model provides a pulley structure, which further includes an auxiliary unit. The auxiliary unit includes a hollow column 201, a sliding rod 202, a spring 203, a limiting rod 204, a base 205 and a rubber wheel 206. The hollow column 201 has a limiting groove 207.

[0040] For this specific embodiment, the auxiliary unit is arranged on one side of the reinforcing plate 102. The addition of the auxiliary unit is to facilitate the installer to install the connecting channel steel and improve the stability of the roller 104, reducing the occurrence of jamming.

[0041] Among them, the hollow column 201 is fixedly connected to the reinforcing plate 102 and is located on one side of the reinforcing plate 102. The sliding rod 202 is fixedly connected to the hollow column 201 and is located on the inner side wall of the hollow column 201. One end of the spring 203 is fixedly connected to the hollow column 201 and is located on the inner bottom wall of the hollow column 201. The other end of the spring 203 is fixedly connected to the sliding rod 202 and is located at one end of the sliding rod 202. The base 205 is fixedly connected to the sliding rod 202 and is located at the end of the sliding rod 202 away from the spring 203. The rubber wheel 206 is rotatably connected to the base 205 and is located on the inner side wall of the base 205. The limiting rod 204 is fixedly connected to the sliding rod 202 and is located on the outer side wall of the sliding rod 202. The hollow column 201 has a limiting groove 207, and the limiting groove 207 is slidably engaged with the limiting rod 204. When the rubber wheel 206 enters the connecting channel steel, the base 205 abuts against the sliding rod 202 to move rightward in the hollow column 201, causing the spring 203 to be compressed. Also, it is beneficial to the characteristic of the spring 203 to abut against the inner wall of the connecting channel steel by the rubber wheel 206. In this way, it is convenient for the staff to install the connecting channel steel, and it can also improve the stability of the roller 104 and reduce the occurrence of jamming situations.

[0042] When using a pulley structure of the present utility model, when the rubber wheel 206 enters the connecting channel steel, the base 205 abuts against the sliding rod 202 to move rightward in the hollow column 201, causing the spring 203 to be compressed. Also, it is beneficial to the characteristic of the spring 203 to abut against the inner wall of the connecting channel steel by the rubber wheel 206. In this way, it is convenient for the staff to install the connecting channel steel, and it can also improve the stability of the roller 104 and reduce the occurrence of jamming situations.

[0043] What is disclosed above is only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A pulley structure, characterized in that it includes a bottom plate, a reinforcing plate, two rotating pins, two rollers and an I-shaped plate. The reinforcing plate is fixedly connected to the bottom plate and is located above the bottom plate. The I-shaped plate is fixedly connected to the bottom plate and is located above the bottom plate. The two rotating pins are both fixedly connected to the bottom plate and are respectively located above the bottom plate. The two rollers are both rotatably connected to the corresponding rotating pins and are located on the outer side walls of the rotating pins.

2. The pulley structure according to claim 1, characterized in that the bottom plate, the reinforcing plate and the I-shaped plate respectively have mounting holes.

3. The pulley structure according to claim 2, characterized in that the bottom plate has a first arc chamfer.

4. The pulley structure according to claim 3, characterized in that the rotating pin has a second arc chamfer.

5. The pulley structure according to claim 4, characterized in that the pulley structure further includes an auxiliary unit, and the auxiliary unit is arranged on one side of the reinforcing plate.

6. The pulley structure according to claim 5, characterized in that the auxiliary unit includes a hollow column, a sliding rod, a spring, a limiting rod, a base and a rubber wheel. The hollow column is fixedly connected to the reinforcing plate and is located on one side of the reinforcing plate. The sliding rod is fixedly connected to the hollow column and is located on the inner side wall of the hollow column. One end of the spring is fixedly connected to the hollow column and is located on the inner bottom wall of the hollow column. The other end of the spring is fixedly connected to the sliding rod and is located at one end of the sliding rod. The base is fixedly connected to the sliding rod and is located at the end of the sliding rod away from the spring. The rubber wheel is rotatably connected to the base and is located on the inner side wall of the base. The limiting rod is fixedly connected to the sliding rod and is located on the outer side wall of the sliding rod. The hollow column has a limiting groove, and the limiting groove is in sliding fit with the limiting rod.

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