Pulley block structure capable of preventing derailing

Abstract

According to the technical scheme, the pulley block structure capable of preventing derailing is characterized in that the pulley block structure comprises a sliding rail and a pulley assembly, the pulley assembly comprises a shell, a plurality of pulleys are arranged in the shell and located on the sliding rail in a sliding mode, and an eccentric connecting piece used for installing a door plate is rotatably arranged on one side of the shell; a side plate is detachably arranged at the end, away from the shell, of the eccentric connecting piece, and a limiting plate extending towards the sliding rail is arranged at the bottom end of the side plate. When the pulley deviates from the sliding rail, the limiting plate abuts against the side face of the sliding rail to limit the sliding track of the pulley, the pulley is prevented from derailing, the stability of the pulley assembly is enhanced, and potential safety hazards caused by derailing of the pulley are prevented.

Description

Technical field

[0001] The utility model relates to the field of mechanical pulley block structures, in particular to a pulley block structure capable of preventing derailment. [Background Technology]

[0002] Pulley assemblies are mostly used under the sliding door body with slide rails. In the existing pulley assembly structure, the pulley can only slide on a flat horizontal straight track. When the slide rail becomes uneven due to installation errors, long-term wear or adhesion of sand and soil, it is easy to cause the pulley to derail, causing the sliding door body to fall, affecting user use. [Utility Model Content]

[0003] In order to enhance the stability of the pulley assembly and avoid the potential safety hazard caused by pulley derailment, the utility model provides a pulley assembly structure that can prevent derailment.

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A pulley block structure capable of preventing derailment is characterized in that it includes a slide rail and a pulley assembly, the pulley assembly includes a shell, a plurality of pulleys are slidably provided in the shell and on the slide rail, an eccentric connector for mounting a door panel is rotatably provided on one side of the shell, a side plate is detachably provided at an end of the eccentric connector away from the shell, and a limit plate extending toward the slide rail is provided at the bottom end of the side plate.

[0006] The pulley assembly structure capable of preventing derailment as described above is characterized in that a limiting rib extending toward the side plate is provided on one side of the slide rail and between the pulley and the limiting plate, and a limiting block extending toward the limiting rib is provided at the end of the limiting plate.

[0007] The pulley assembly structure that can prevent derailment as described above is characterized in that: the eccentric connecting member includes an eccentric shaft for supporting and placing the door panel, a clamping plate for clamping the door panel is provided at one end of the eccentric shaft close to the side panel, a socket is provided inside the eccentric connecting member, which is concentric with the clamping plate and not concentric with the eccentric shaft, a column for inserting into the socket is provided on the side wall of the shell, and a fixing hole for screwing in a screw to prevent the eccentric connecting member from falling off is provided in the column.

[0008] The pulley block structure capable of preventing derailment as described above is characterized in that a snap ring is provided on the outer edge of the splint, a groove for clamping the snap ring is provided on the side plate, a bayonet with a diameter larger than that of the snap ring is provided at one end of the slot, and the width of the slot gradually narrows from the bayonet to the other end.

[0009] The pulley assembly structure capable of preventing derailment as described above is characterized in that a positioning hole for adjusting the height balance of the positioning door panel is provided on the clamping plate.

[0010] The pulley block structure capable of preventing derailment as described above is characterized in that: a plurality of mounting grooves arranged side by side are provided on one side of the shell, a mounting shaft is provided in the mounting groove, the pulley is rotatably nested and installed on the mounting shaft, and a mounting hole for screwing in a screw to prevent the pulley from falling off is provided in the mounting shaft.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The pulley assembly structure of the utility model can prevent derailment, is provided with side plates and limit plates, and the end of the limit plate is close to the side of the slide rail. When the pulley deviates from the slide rail, the limit plate will abut against the side of the slide rail to limit the sliding track of the pulley and prevent the pulley from derailing. At the same time, the limit plate will increase the sliding friction and prevent the pulley from continuing to slide with the door panel, so as to remind the user to solve the track problem, thereby effectively enhancing the stability of the pulley assembly and preventing the safety hazard of the door panel falling due to the pulley derailing; moreover, the side plates are installed on the eccentric connecting piece by sliding clamping, which is very convenient to assemble and disassemble.

Brief Description of the Drawings

[0013] Figure 1 It is a three-dimensional diagram of the pulley structure;

[0014] Figure 2 This is the first exploded view of the pulley assembly structure;

[0015] Figure 3 This is the second exploded view of the pulley assembly structure;

[0016] Figure 4 This is the third exploded view of the pulley assembly structure;

[0017] Figure 5 This is the fourth exploded view of the pulley assembly structure;

[0018] In the figure: 1 is a slide rail; 2 is a housing; 3 is a pulley; 4 is a side plate; 5 is a limit plate; 6 is a limit block; 7 is an eccentric connector; 8 is an eccentric shaft; 9 is a splint; 10 is a snap ring; 11 is a socket; 12 is a positioning hole; 13 is a plug; 14 is a fixing hole; 15 is a slot; 16 is a bayonet; 17 is a mounting slot; 18 is a mounting shaft; 19 is a mounting hole; 20 is a limit rib. [Specific implementation method]

[0019] The technical features of the present invention are further described in detail below with reference to the accompanying drawings so that those skilled in the art can understand them.

[0020] A pulley block structure that can prevent derailment, such as Figures 1 to 5 When the cam 2 is in the upright position, the wheel 3 is in the upright position, and the wheel 3 is in the upright position, so that the cam 2 can move freely, and the wheel 3 of the vehicle body 1 can move freely.

[0021] Specifically, a limiting rib 20 extending toward the side plate 4 is provided on one side of the slide rail 1 and between the pulley 3 and the limiting plate 5, and a limiting block 6 extending toward the limiting rib 20 is provided at the end of the limiting plate 5. The end of the limiting block 6 is close to the bottom surface of the limiting rib 20, which can prevent the pulley 3 from warping up and causing the pulley to derail.

[0022] Specifically, the eccentric connecting member 7 includes an eccentric shaft 8 for supporting and placing the door panel, and a splint 9 for clamping the door panel is provided at one end of the eccentric shaft 8 close to the side panel 4, and a socket 11 is provided inside the eccentric connecting member 7, which is concentric with the splint 9 and not concentric with the eccentric shaft 8, and a column 13 for inserting the socket 11 is provided on the side wall of the shell 2, and a fixing hole 14 is provided in the column 13 for screwing in a screw to prevent the eccentric connecting member 7 from falling off. Since the door panel is placed and installed on the eccentric shaft 8, the eccentric shaft 8 can be used to fine-tune the height of the door panel by rotating the eccentric connecting member 7, so that the door panel can be adjusted to a horizontal state when installing it.

[0023] In addition, a snap ring 10 is provided on the outer edge of the splint 9, and a slot 15 for clamping the snap ring 10 is provided on the side panel 4. A snap opening 16 having a diameter larger than that of the snap ring 10 is provided at one end of the slot 15. The width of the slot 15 gradually narrows from the snap opening 16 to the other end. The side panel 4 is tightly clamped to the eccentric connector 7 through the slot 15 and the snap ring 10. The side panel 4 is installed on the eccentric connector 7 by sliding clamping, which is very convenient to assemble and disassemble.

[0024] In addition, a positioning hole 12 for adjusting the height balance of the door panel is provided on the splint 9. After the door panel is fine-tuned to a horizontal state by rotating the eccentric shaft 8, a set screw can be screwed into the positioning hole 12 for positioning and fixing. At the same time, the positioning hole 12 can serve as a reference point for the rotation position of the eccentric shaft 8.

[0025] Specifically, a plurality of mounting grooves 17 arranged side by side are provided on one side of the housing 2, a mounting shaft 18 is provided in the mounting groove 17, the pulley 3 is rotatably nested and installed on the mounting shaft 18, and a mounting hole 19 is provided in the mounting shaft 18 for screwing in a screw to prevent the pulley 3 from falling off. During assembly, it is only necessary to nest the pulley 3 on the mounting shaft 18 and then screw in the screw.

[0026] The embodiments described in the present invention are merely descriptions of preferred implementation methods and are not limited to the precise structures described above and shown in the accompanying drawings. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the scope of protection of the present invention.

Claims

1. A pulley block structure capable of preventing derailment, characterized in that: The invention comprises a slide rail (1) and a pulley assembly, wherein the pulley assembly comprises a housing (2), a plurality of pulleys (3) are slidably provided in the housing (2) and on the slide rail (1), an eccentric connecting member (7) for mounting a door panel is rotatably provided on one side of the housing (2), a side plate (4) is detachably provided at one end of the eccentric connecting member (7) away from the housing (2), and a limiting plate (5) extending toward the slide rail (1) is provided at the bottom end of the side plate (4).

2. The anti-derail pulley structure according to claim 1, characterized in that: A limiting rib (20) extending toward the side plate (4) is provided on one side of the slide rail (1) and between the pulley (3) and the limiting plate (5), and a limiting block (6) extending toward the limiting rib (20) is provided at the end of the limiting plate (5).

3. The pulley block structure capable of preventing derailment according to claim 1, characterized in that: The eccentric connecting member (7) includes an eccentric shaft (8) for supporting and placing a door panel, a clamping plate (9) for clamping the door panel is provided at one end of the eccentric shaft (8) close to the side panel (4), a socket (11) is provided inside the eccentric connecting member (7) and is concentric with the clamping plate (9) and eccentric with the eccentric shaft (8), a plug post (13) for inserting into the plug post (11) is provided on the side wall of the housing (2), and a fixing hole (14) is provided in the plug post (13) for screwing in a screw to prevent the eccentric connecting member (7) from falling off.

4. The pulley block structure capable of preventing derailment according to claim 3, characterized in that: A snap ring (10) is provided on the outer edge of the clamping plate (9), a clamping groove (15) for clamping the snap ring (10) is provided on the side plate (4), a bayonet (16) having a diameter larger than that of the snap ring (10) is provided at one end of the bayonet (15), and the width of the bayonet (15) gradually narrows from the bayonet (16) to the other end.

5. The pulley block structure capable of preventing derailment according to claim 3, characterized in that: A positioning hole (12) for adjusting the height balance of the positioning door panel is provided on the clamping plate (9).

6. The pulley block structure capable of preventing derailment according to claim 1, characterized in that: A plurality of mounting grooves (17) arranged side by side are provided on one side of the housing (2), a mounting shaft (18) is provided in the mounting groove (17), the pulley (3) is rotatably nested on the mounting shaft (18), and a mounting hole (19) for screwing in a screw to prevent the pulley (3) from falling off is provided in the mounting shaft (18).

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