Retractor braid anti-reversing mechanism

By using a cylinder lifting mechanism to drive the webbing guide plate and the limiting plate to form a gap, the problem of knotting of the webbing during the rewinding process of the retractor is solved, and automatic smoothing is achieved, which improves production efficiency and product quality.

CN223866039UActive Publication Date: 2026-02-03SUZHOU DEZINDA AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202520150485.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-02-03
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Existing retractor webbing is prone to knotting during the rewinding process, requiring manual intervention, which affects production efficiency and product quality.

Method used

A cylinder lifting mechanism is used to move the webbing guide plate away from or closer to the webbing limit plate, forming a reserved gap to achieve automatic straightening of the webbing.

Benefits of technology

Automating the handling of webbing knots improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a braid anti-reversing mechanism of a retractor, and relates to the technical field of retractors. The braid anti-reversion mechanism of the retractor comprises a support, a braid anti-reversion device and a driving device, the two fixing plates are oppositely arranged on one side of the support in the first direction; the two shells are oppositely arranged on the two fixing plates and are respectively connected with the bracket; the belt penetrating notches are oppositely formed in the two shells respectively; the braid limiting plate is arranged on the side close to the top of the support, connected with the shell and opposite to the fixing plate. The air cylinder jacking mechanism is arranged on one fixing plate close to one side of the bottom of the support, and the output end of the air cylinder jacking mechanism faces the other fixing plate. And a braid guide plate. According to the utility model, the problems that the knotting phenomenon of the braid is easy to occur in the rewinding process of the braid of the conventional winder, and manual intervention is usually needed for processing, so that the whole line rhythm is increased, and the production efficiency and the product quality are influenced are solved.
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Description

Technical Field

[0001] This utility model relates to the field of retractor technology, and in particular to a retractor webbing anti-reverse mechanism. Background Technology

[0002] Existing retractor webbing is prone to knotting during the rewinding process, typically requiring manual intervention. This not only increases the overall production cycle time but also negatively impacts production efficiency and product quality. Currently, the industry has not yet proposed an effective solution to these problems. Utility Model Content

[0003] Purpose of the utility model: To provide a retractor webbing anti-reverse mechanism to at least solve one of the problems existing in the prior art.

[0004] Technical solution: A retractor webbing anti-reverse mechanism, comprising:

[0005] support;

[0006] Two fixing plates are disposed opposite to each other on one side of the bracket along a first direction;

[0007] Two housings are disposed opposite to each other on the two fixed plates and are respectively connected to the bracket;

[0008] The threaded slots are respectively formed on the two shells;

[0009] A webbing limiting plate is disposed near the top of the bracket and connected to the housing, and is disposed opposite to the fixing plate;

[0010] A cylinder lifting mechanism is mounted on a fixed plate near the bottom of the bracket, with its output end facing another fixed plate.

[0011] A webbing guide plate is disposed at the output end of the cylinder lifting mechanism and is positioned opposite to the webbing limiting plate; and

[0012] The sensor is disposed on one side of the housing and is electrically connected to the cylinder lifting mechanism;

[0013] Specifically, the cylinder lifting mechanism drives the webbing guide plate away from or closer to the webbing limiting plate in a preset direction, so that a gap is reserved between the webbing guide plate and the webbing limiting plate.

[0014] Preferably, the bracket is L-shaped.

[0015] Preferably, the bracket is provided with reinforcing ribs on the side away from the fixing plate.

[0016] Preferably, the bracket, the fixing plate, and the two housings are each provided with a plurality of mounting holes.

[0017] Preferably, the cylinder lifting mechanism includes a driving component connected to a fixed plate, the output end of the driving component being provided with a connector, and the connector being embedded in the bottom of the webbing guide plate.

[0018] Preferably, the bottom of the webbing guide plate is provided with an auxiliary guide component that is symmetrical about the driving component.

[0019] Preferably, the auxiliary guiding assembly includes: a bearing seat connected to a fixed plate near the bottom of the bracket, a guide rod disposed on the bearing seat in a vertical direction, and the side of the guide rod away from the bearing seat being connected to the bottom of the webbing guide plate.

[0020] Preferably, a connecting block is provided at the bottom of the webbing guide plate.

[0021] Preferably, the bottom of the connecting block is provided with a stepped groove, the width of which decreases from top to bottom.

[0022] Preferably, the height of the spacing is matched with the thickness of the webbing.

[0023] Beneficial effects: In this embodiment, an automatic webbing detection method is adopted. The cylinder lifting mechanism drives the webbing guide plate away from or towards the webbing limiting plate in a preset direction, so that a gap is reserved between the webbing guide plate and the webbing limiting plate. This achieves the purpose of automatically smoothing out the folded webbing, thereby improving work efficiency and product quality. It also solves the problem that existing retractors are prone to webbing knots during the rewinding process, which usually requires manual intervention. This not only increases the overall line speed but also affects production efficiency and product quality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the anti-reverse mechanism of the retractor webbing of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of another retractor webbing anti-reverse mechanism of this utility model;

[0026] Figure 3 This is a front view of the anti-reverse mechanism of the retractor webbing of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the anti-reverse mechanism of the retractor webbing of this utility model; and

[0028] Figure 5This is a front view of the internal structure of the anti-reverse mechanism of the retractor webbing of this utility model.

[0029] The attached figures are labeled as follows:

[0030] 10. Bracket; 101. Reinforcing rib;

[0031] 20. Fixing plate;

[0032] 30. Housing; 301. Threading slot;

[0033] 40. Webbing limiting plate;

[0034] 50. Cylinder lifting mechanism; 501. Drive component; 502. Connecting component;

[0035] 60. Webbing guide plate; 601. Connecting block; 6011. Groove;

[0036] 70. Sensors;

[0037] 80. Mounting holes;

[0038] 90. Auxiliary guide assembly; 901. Bearing housing; 902. Guide rod. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] like Figure 1-5 As shown, this application relates to an anti-reverse mechanism for a retractor webbing. The anti-reverse mechanism includes a bracket 10; the bracket 10 refers to a support frame, which can achieve good fixing and support effects; at the same time, it can also achieve good cooperation with other components, thereby achieving multiple functional effects.

[0044] Two fixing plates 20 are disposed opposite each other on one side of the bracket 10 along a first direction; this achieves good fixing and support effects, thereby ensuring good assembly results. The first direction refers to the horizontal direction, which is also the X-axis direction in the two coordinate systems.

[0045] The two housings 30 are disposed opposite to each other on the two fixed plates 20 and are respectively connected to the bracket 10; thus achieving a good assembly and forming effect, which facilitates the assembly of other components.

[0046] The webbing slots 301 are respectively opened on the two housings 30; this ensures a good webbing threading effect, thereby achieving a good fit.

[0047] The webbing limiting plate 40 is located near the top of the bracket 10 and connected to the housing 30, and is positioned opposite to the fixing plate 20; it can achieve a good limiting and fixing effect, and at the same time, it can also achieve a good cooperation effect with other components, thereby ensuring a good effect on the webbing.

[0048] The cylinder lifting mechanism 50 is mounted on a fixed plate 20 near the bottom of the bracket 10, with its output end facing another fixed plate 20; it can achieve a good lifting effect, thereby driving other components to move in a directional manner, thus ensuring a precise driving effect.

[0049] The webbing guide plate 60 is located at the output end of the cylinder lifting mechanism 50 and is positioned opposite to the webbing limiting plate 40; it can achieve a good webbing guiding effect, thereby confirming that the webbing is in the required assembly state.

[0050] Sensor 70 is disposed on one side of the housing 30 and electrically connected to the cylinder lifting mechanism 50; through sensor 70, the state of the webbing can be effectively sensed and detected, thereby achieving real-time automatic detection.

[0051] Specifically, the cylinder lifting mechanism 50 moves the webbing guide plate 60 away from or towards the webbing limiting plate 40 in a preset direction, thus maintaining a pre-existing gap between the webbing guide plate 60 and the webbing limiting plate 40. The cylinder lifting mechanism 50 drives the webbing guide plate 60 to move up and down, achieving a good limiting fit with the webbing limiting plate 40. This ensures that the pre-existing gap between the webbing guide plate 60 and the webbing limiting plate 40 effectively acts on the webbing, ultimately ensuring a good anti-reverse effect for the webbing. The preset direction is the vertical direction, which is also the Y-axis direction in the two-coordinate system.

[0052] As can be seen from the above description, this application achieves the following technical effects:

[0053] In this embodiment, an automatic webbing detection method is adopted. The cylinder lifting mechanism 50 drives the webbing guide plate 60 away from or closer to the webbing limiting plate 40 in a preset direction, so that a gap is reserved between the webbing guide plate 60 and the webbing limiting plate 40. This achieves the purpose of automatically smoothing out the folded webbing, thereby improving work efficiency and product quality. It also solves the problem that existing retractors often cause webbing to knot during the rewinding process, which usually requires manual intervention. This not only increases the overall line speed but also affects production efficiency and product quality.

[0054] Furthermore, the bracket 10 is L-shaped. It is understood that by adopting an L-shape, a good assembly effect can be ensured, thereby avoiding interference.

[0055] Furthermore, the bracket 10 is provided with a reinforcing rib 101 on the side away from the fixing plate 20. This can be understood as improving structural strength, thereby ensuring structural stability.

[0056] Furthermore, the bracket 10, the fixing plate 20, and the two housings 30 are each provided with a plurality of mounting holes 80. This allows for a good assembly effect, thereby ensuring a good fit between the components.

[0057] Furthermore, the cylinder lifting mechanism 50 includes a drive component 501 connected to a fixed plate 20, and a connector 502 is provided at the output end of the drive component 501. The connector 502 is embedded in the bottom of the webbing guide plate 60. It is understood that this allows for good assembly, thereby ensuring a good lifting effect.

[0058] Furthermore, the bottom of the webbing guide plate 60 is provided with an auxiliary guide component 90 symmetrical about the drive component 501. It is understood that this provides a good auxiliary guide effect, thereby ensuring precise movement of other components.

[0059] Furthermore, the auxiliary guiding assembly 90 includes a bearing seat 901 connected to a fixing plate 20 near the bottom of the bracket 10. A guide rod 902 is vertically disposed on the bearing seat 901, and the side of the guide rod 902 away from the bearing seat 901 is connected to the bottom of the webbing guide plate 60. It is understood that this allows for good assembly, thereby ensuring a good auxiliary guiding effect.

[0060] Furthermore, a connecting block 601 is provided at the bottom of the webbing guide plate 60. This allows for a good connection between the components.

[0061] Furthermore, the bottom of the connecting block 601 is provided with a stepped groove 6011, the width of which decreases from top to bottom. This allows for a good fit and assembly effect, thereby ensuring a stable structure.

[0062] Furthermore, the height of the spacing is matched to the thickness of the webbing. This ensures a good matching effect, thereby ensuring a good anti-reverse effect of the webbing.

[0063] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A retractor webbing anti-reverse mechanism, characterized in that, include: support; Two fixing plates are disposed opposite to each other on one side of the bracket along a first direction; Two housings are disposed opposite to each other on the two fixed plates and are respectively connected to the bracket; The threaded slots are respectively formed on the two shells; A webbing limiting plate is disposed near the top of the bracket and connected to the housing, and is disposed opposite to the fixing plate; A cylinder lifting mechanism is mounted on a fixed plate near the bottom of the bracket, with its output end facing another fixed plate. A webbing guide plate is disposed at the output end of the cylinder lifting mechanism and is positioned opposite to the webbing limiting plate; and The sensor is disposed on one side of the housing and is electrically connected to the cylinder lifting mechanism; Specifically, the cylinder lifting mechanism drives the webbing guide plate away from or closer to the webbing limiting plate in a preset direction, so that a gap is reserved between the webbing guide plate and the webbing limiting plate.

2. The anti-reverse mechanism for the retractor webbing according to claim 1, characterized in that, The bracket is L-shaped.

3. The anti-reverse mechanism for the retractor webbing according to claim 1, characterized in that, The bracket is also provided with reinforcing ribs on the side away from the fixing plate.

4. The anti-reverse mechanism for the retractor webbing according to claim 1, characterized in that, The bracket, the fixing plate, and the two housings are each provided with a number of mounting holes.

5. The anti-reverse mechanism for the retractor webbing according to claim 1, characterized in that, The cylinder lifting mechanism includes a driving component connected to a fixed plate, and the output end of the driving component is provided with a connector, which is embedded in the bottom of the webbing guide plate.

6. The anti-reverse mechanism for the retractor webbing according to claim 5, characterized in that, The bottom of the webbing guide plate is provided with an auxiliary guide component that is symmetrical about the driving component.

7. The anti-reverse mechanism for the retractor webbing according to claim 6, characterized in that, The auxiliary guiding assembly includes: a bearing seat connected to a fixed plate near the bottom of the bracket, a guide rod disposed on the bearing seat in a vertical direction, and the side of the guide rod away from the bearing seat being connected to the bottom of the webbing guide plate.

8. The anti-reverse mechanism for the retractor webbing according to claim 1, characterized in that, A connecting block is provided at the bottom of the webbing guide plate.

9. The anti-reverse mechanism for the retractor webbing according to claim 8, characterized in that, The bottom of the connecting block is provided with a stepped groove, the width of which decreases from top to bottom.

10. The anti-reverse mechanism for the retractor webbing according to claim 1, characterized in that, The height of the spacing is matched to the thickness of the webbing.