Pulley assembly capable of automatically adjusting balance

Abstract

The utility model discloses a self-balance-adjusting pulley assembly which comprises a wheel carrier, pulley mechanisms are arranged on the left side and the right side of the wheel carrier respectively, auxiliary wheel mechanisms are arranged on the front portion and the rear portion of the wheel carrier respectively, and the auxiliary wheel mechanisms are arranged in a front-back moving mode relative to the wheel carrier. During use, the pulley assembly slides left and right in the ground rail, and in the moving process, the front auxiliary wheel mechanism and the rear auxiliary wheel mechanism can automatically adjust the front-back positions of the auxiliary wheel mechanisms along with the change of the interior of the ground rail, so that the auxiliary wheel mechanisms are attached to the ground rail all the time, and the stability is guaranteed. Meanwhile, the movable auxiliary wheel mechanism can automatically adjust the front-back position of the auxiliary wheel mechanism when foreign matter appears, so that the situation that the moving stability of the sliding door is affected and noise is reduced due to the fact that the auxiliary wheel mechanism makes hard contact with the foreign matter is avoided.

Description

Technical Field

[0001] The utility model relates to a pulley assembly with self - adjusting balance. Background Art

[0002] The prior art, such as the Chinese utility model patent document with the publication number CN216741137U, discloses a door and window floor track wheel structure, including a main frame profile. Above the interior of the main frame profile, there is a sliding surface profile, and below the interior of the main frame profile, there is a profile support frame. A sliding assembly is arranged between the sliding surface profile and the profile support frame. The sliding assembly includes a bearing pulley that penetrates through the top surface of the sliding surface profile; wherein, the bearing pulley can swing in a direction perpendicular to the top surface of the sliding surface profile.

[0003] In the prior art, the bearing pulley will automatically swing in a direction perpendicular to the top surface of the sliding surface profile according to the pressure it receives.

[0004] Based on the above, the technical problem existing in the prior art is that there is no structure for automatically adjusting balance on the front and rear sides of the pulley assembly. When there are foreign objects on the front and rear wall surfaces of the floor track, causing the front and rear wall surfaces to be uneven during the left - right sliding of the pulley assembly inside the floor track, the pulley assembly cannot automatically adjust the balance and needs further improvement. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a pulley assembly with self - adjusting balance.

[0006] A pulley assembly with self - adjusting balance designed according to this purpose includes a wheel frame. Pulley mechanisms are respectively arranged on the left and right of the wheel frame, and auxiliary wheel mechanisms are respectively arranged on the front and rear of the wheel frame. The auxiliary wheel mechanisms are arranged to move back and forth relative to the wheel frame.

[0007] Preferably, the auxiliary wheel mechanism includes a moving member that moves back and forth relative to the wheel frame. An auxiliary wheel is rotatably arranged on the moving member, and an elastic element for applying a force to the moving member is arranged on the wheel frame.

[0008] Preferably, a strip - shaped adjustment hole penetrating up and down is arranged on the wheel frame. The moving member is movably inserted into the strip - shaped adjustment hole and is arranged to move back and forth relative to the strip - shaped adjustment hole;

[0009] Limit members are respectively arranged above and below the moving member, and the limit members are in contact with the wheel frame to restrict the up - and - down displacement of the moving member.

[0010] Preferably, an installation hole communicating with the strip-shaped adjustment hole is arranged in the wheel frame, the elastic element is arranged in the installation hole, one end of the elastic element abuts against the moving part, and the other end abuts against the inner wall of the installation hole.

[0011] Preferably, shafts are respectively arranged on the front and rear sides of the wheel frame, and the pulley mechanism is rotatably arranged on the shafts.

[0012] Preferably, the pulley mechanism includes a balance adjustment seat rotatably arranged on the shaft, mounting shafts are respectively arranged on the front and rear sides of the balance adjustment seat, and pulleys are rotatably arranged on the mounting shafts.

[0013] Preferably, mounting parts are respectively arranged on the left and right sides of the wheel frame, brush seats are arranged on the mounting parts, and brushes for fitting with the ground rail or the pulley are mounted on the brush seats.

[0014] Compared with the prior art, auxiliary wheel mechanisms are respectively arranged on the front and rear of the wheel frame, and the auxiliary wheel mechanisms are arranged to move relatively front and rear with respect to the wheel frame. During use, the pulley assembly slides left and right inside the ground rail. During the movement, the front and rear two auxiliary wheel mechanisms can automatically adjust the front and rear positions of the auxiliary wheel mechanisms according to the changes inside the ground rail, so that the auxiliary wheel mechanisms are always in contact with the ground rail to ensure stability. At the same time, the movable auxiliary wheel mechanism can automatically adjust the front and rear positions of the auxiliary wheel mechanism when there are foreign objects, so as to avoid hard contact with the foreign objects and affect the stability of the sliding door movement and reduce noise generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is one of the three-dimensional structure diagrams of the pulley assembly;

[0016] Figure 2 is the second three-dimensional structure diagram of the pulley assembly;

[0017] Figure 3 is one of the cross-sectional structure diagrams of the pulley assembly;

[0018] Figure 4 is the second cross-sectional structure diagram of the pulley assembly;

[0019] Figure 5 is one of the cross-sectional structure diagrams of the pulley assembly installed inside the ground rail;

[0020] Figure 6 is the second cross-sectional structure diagram of the pulley assembly installed inside the ground rail;

[0021] Figure 7 is the three-dimensional structure diagram of the wheel frame. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Refer to Figures 1-7 , a pulley assembly with self-adjusting balance, including a wheel frame 10, pulley mechanisms 20 are respectively arranged on the left and right of the wheel frame 10, auxiliary wheel mechanisms 30 are respectively arranged in the front and rear of the wheel frame 10, and the auxiliary wheel mechanisms 30 are arranged to move back and forth relative to the wheel frame 10.

[0024] During use, the pulley assembly slides left and right inside the ground rail. During the movement, the front and rear auxiliary wheel mechanisms can automatically adjust the front and rear positions of the auxiliary wheel mechanisms according to the changes inside the ground rail, so that the auxiliary wheel mechanisms are always in contact with the ground rail to ensure stability. At the same time, the movable auxiliary wheel mechanism can automatically adjust the front and rear positions of the auxiliary wheel mechanism when there are foreign objects, so as to avoid hard contact with foreign objects and affect the stability of the sliding door movement and reduce noise generation.

[0025] Refer to Figure 5 and Figure 6 , during use, the pulley assembly is located inside the ground rail. A slide rail 410 is arranged on the inner ground surface of the ground rail to cooperate with the pulley mechanism 20. During sliding, the pulley mechanism 20 slides while being attached to the surface of the slide rail 410. Auxiliary rails 420 are arranged on the front and rear inner side walls of the ground rail to cooperate with the auxiliary wheel mechanisms 30. During sliding, the auxiliary wheel mechanisms 30 slide while being attached to the surface of the auxiliary rails 420.

[0026] Refer to Figure 4 , the auxiliary wheel mechanism 30 includes a moving member 310 arranged to move back and forth relative to the wheel frame 10. An auxiliary wheel 320 is rotatably arranged on the moving member 310, and an elastic element 330 for applying a force to the moving member 310 is arranged on the wheel frame 10.

[0027] Refer to Figure 4 and Figure 7 , a strip-shaped adjustment hole 110 penetrating up and down is arranged on the wheel frame 10. The moving member 310 is movably inserted into the strip-shaped adjustment hole 110 and is arranged to move back and forth relative to the strip-shaped adjustment hole 110;

[0028] Limit members 340 are respectively arranged above and below the moving member 310, and the limit members 340 are in contact with the wheel frame 10 to restrict the up and down displacement of the moving member 310.

[0029] Refer to Figure 4 , the upper limit member 340 is in contact with the upper surface of the wheel frame 10, and the lower limit member 340 is in contact with the lower surface of the wheel frame 10.

[0030] Refer to Figure 4, an installation hole 150 communicating with the strip-shaped adjustment hole 110 is provided in the wheel carrier 10, the elastic element 330 is arranged in the installation hole 150, one end of the elastic element 330 abuts against the moving part 310, and the other end abuts against the inner wall of the installation hole 150.

[0031] Further, the elastic element 330 is a spring. When the elastic element 330 functions, it applies a force to the moving part 310 to make the auxiliary wheel 320 mounted on the moving part 310 fit with the auxiliary rail 420. When there is a foreign object on one side of the auxiliary rail 420, the auxiliary wheel 320 is blocked and drives the moving part 310 to move relative to the wheel carrier 10. During this movement, the elastic element 330 is compressed and stores energy. When the auxiliary wheel 320 is separated from the foreign object, the elastic element 330 will release the stored energy and drive the auxiliary wheel 320 to reset.

[0032] See Figure 3 , shaft bodies 100 are respectively arranged on the front and rear sides of the wheel carrier 10, and the pulley mechanism 20 is rotatably arranged on the shaft bodies 100.

[0033] See Figure 3 , the pulley mechanism 20 includes a balance adjustment seat 210 rotatably arranged on the shaft body 100, mounting shafts 220 are respectively arranged on the front and rear sides of the balance adjustment seat 210, and pulleys 230 are rotatably arranged on the mounting shafts 220.

[0034] It is swingably arranged on the balance adjustment seat 210. When there is a foreign object on the slide rail 410 during the sliding process of the pulley assembly, the pulley 230 can, under the action of the swing of the balance adjustment seat 210, adjust the height position of the pulley 230 to avoid hard contact with the foreign object, thereby reducing the shaking of the door body and the noise generated when the pulley 320 contacts the foreign object.

[0035] See Figure 1 , mounting parts 120 are respectively arranged on the left and right sides of the wheel carrier 10, brush seats 130 are arranged on the mounting parts 120, and brushes 140 for fitting with the ground rail 40 or with the pulleys 230 are mounted on the brush seats 130.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-adjusting and balancing pulley assembly, comprising a wheel frame (10), with pulley mechanisms (20) respectively arranged on the left and right of the wheel frame (10), characterized in that: An auxiliary wheel mechanism (30) is respectively arranged at the front and rear of the wheel frame (10), and the auxiliary wheel mechanism (30) is arranged to move back and forth relative to the wheel frame (10); The auxiliary wheel mechanism (30) includes a moving member (310) arranged to move back and forth relative to the wheel frame (10). An auxiliary wheel (320) is rotatably arranged on the moving member (310), and an elastic element (330) for applying a force to the moving member (310) is arranged on the wheel frame (10); A strip-shaped adjustment hole (110) penetrating up and down is arranged on the wheel frame (10). The moving member (310) is movably inserted into the strip-shaped adjustment hole (110) and is arranged to move back and forth relative to the strip-shaped adjustment hole (110); Limit members (340) are respectively arranged above and below the moving member (310), and the limit members (340) are in contact with the wheel frame (10) to restrict the up and down displacement of the moving member (310); An installation hole (150) communicated with the strip-shaped adjustment hole (110) is arranged inside the wheel frame (10). The elastic element (330) is arranged in the installation hole (150). One end of the elastic element (330) abuts against the moving member (310), and the other end abuts against the inner wall of the installation hole (150).

2. The self - regulating balance pulley assembly according to claim 1, wherein: Shaft bodies (100) are respectively arranged on the front and rear sides of the wheel frame (10), and the pulley mechanism (20) is rotatably arranged on the shaft bodies (100).

3. The self-adjusting balance pulley assembly according to claim 2, wherein: The pulley mechanism (20) includes a balance adjustment seat (210) rotatably arranged on the shaft body (100). Installation shafts (220) are respectively arranged on the front and rear sides of the balance adjustment seat (210), and pulleys (230) are rotatably arranged on the installation shafts (220).

4. A self-adjusting balanced pulley assembly according to claim 1, wherein: Installation parts (120) are respectively arranged on the left and right sides of the wheel frame (10). A brush seat (130) is arranged on the installation part (120), and a brush (140) for contacting with the ground rail (40) or with the pulley (230) is installed on the brush seat (130).

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