Overtravel protection device and handle

Abstract

The utility model relates to the field of operating handles, in particular to an overtravel protection device and a handle, which comprises an operating rod body and a shaft sleeve assembly, the operating rod body is rotatably arranged in the shaft sleeve assembly and is provided with an abutting part abutting against the shaft sleeve assembly, and the shaft sleeve assembly comprises a first shaft sleeve, a second shaft sleeve and an elastic piece. The elastic piece is arranged in a containing space formed by the first shaft sleeve and the second shaft sleeve, a first gap is formed between the first shaft sleeve and the second shaft sleeve, the distance of the first gap is adjustable, and the operating rod body is used for driving the first shaft sleeve and the second shaft sleeve to rotate along the axis of the operating rod body. Therefore, after the second shaft sleeve reaches the preset distance, the operation rod body can still continue to be rotated, the use scene of the operation rod body is effectively improved, and more use purposes are provided for the operation rod body.

Description

Technical Field

[0001] The utility model relates to the field of operating handles, in particular to an over-travel protection device and a handle. Background Art

[0002] The handle is a common operating mechanism, but it is usually equipped with an over-travel protection function when it leaves the factory. That is, when the handle angle exceeds the designed stroke, the handle cannot continue to rotate to avoid damage to the handle itself. However, the above design will cause the handle to be unable to continue to be used normally, which in turn leads to greater limitations on the use of the handle. Utility Model Content

[0003] The utility model discloses an over-travel protection device and a handle to solve the problem that the existing handle cannot continue to be used normally due to over-travel.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides an over-travel protection device, comprising: an operating rod body, a shaft sleeve assembly;

[0006] The operating rod body is rotatably disposed inside the shaft sleeve assembly and is provided with an abutment portion abutting against the shaft sleeve assembly;

[0007] The sleeve assembly comprises a first sleeve, a second sleeve and an elastic member, wherein the elastic member is disposed in a receiving space formed by the first sleeve and the second sleeve, and abuts against the first sleeve and the second sleeve respectively, so that a first gap is formed between the first sleeve and the second sleeve, and the distance of the first gap is adjustable;

[0008] A protrusion is formed on one end of the abutting portion facing the first sleeve, and a recessed portion matching the protrusion is formed on one end of the first sleeve facing the abutting portion;

[0009] The operating rod body is used to drive the first sleeve and the second sleeve to rotate along the axis of the operating rod body. The second sleeve has a maximum movement distance, and when the second sleeve moves to the maximum movement distance, the protrusion rotates around the axis of the operating rod body to drive the first sleeve to move toward the position of the second sleeve so that the operating rod body can continue to rotate along its axis.

[0010] The present application arranges the first sleeve and the second sleeve at an interval, and provides a protrusion on the abutment portion, and the first sleeve is provided with a recessed portion that matches the protrusion. When the second sleeve reaches a preset distance, the second sleeve cannot continue to rotate at this time. If the operating rod body needs to continue to rotate, the user continues to rotate the operating rod body, and the operating rod body will drive the protrusion on the abutment portion to rotate, further causing the protrusion to drive the first sleeve to move toward the position of the second sleeve, squeezing the first gap, and providing space for the protrusion to continue to rotate. Therefore, the present application can continue to rotate the operating rod body after the second sleeve reaches the preset distance, effectively improving the use scenario of the operating rod body and providing more uses for the operating rod body.

[0011] In some embodiments, the over-travel protection device also includes a limit assembly, the limit assembly includes a limit piece and a base plate, the base plate is fixedly connected to the second sleeve, an avoidance hole is opened on the base plate for avoiding the operating rod body, the operating rod body is fixedly connected to the base plate, the limit piece is fixed to the base plate, and when the second sleeve moves to the maximum movement distance, the position of the base plate and the second sleeve is limited.

[0012] In some embodiments, the limiting assembly further includes a snap ring, which is disposed on a side of the operating rod body protruding from the bottom plate and is fixedly connected to the operating rod body, and a size of the snap ring is larger than a size of the avoidance hole.

[0013] In some embodiments, the sleeve assembly further includes a first interference portion and a second interference portion corresponding to each other;

[0014] The first interference portion is arranged at one end of the first sleeve facing the second sleeve, and the second interference portion is arranged at one end of the second sleeve facing the first sleeve. The first interference portion is in contact with the second interference portion to limit the relative position of the first sleeve and the second sleeve.

[0015] In some embodiments, the protrusion has a first vertex away from the recessed portion, the recessed portion has a second vertex away from the protrusion, a vertical distance between the first vertex and the second vertex is a second gap, and the second gap distance is adjustable.

[0016] In some embodiments, the first gap distance is greater than the second gap distance;

[0017] Alternatively, the first gap distance is smaller than the second gap distance.

[0018] In some embodiments, the side of the protrusion facing the first sleeve is a first bevel structure, the side of the recessed portion facing the abutting portion is a second bevel structure, and the first bevel structure corresponds to the second bevel.

[0019] In some embodiments, the orthographic projection of the protrusion on the operating rod body is a boss structure or a spiral structure.

[0020] In some embodiments, the limiting member includes a pin shaft, and the pin shaft is set through the bottom plate.

[0021] In a second aspect, the utility model further provides a handle, comprising the over-travel protection device as described in any one of the above items and an operating handle, wherein the operating rod body in the over-travel protection device is connected to the operating handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A cross-sectional view of the overall structure provided by an embodiment of the utility model;

[0023] Figure 2 A side view of the overall structure provided by an embodiment of the utility model;

[0024] Figure 3 This is a rendering of the effect that the over-travel protection provided by the embodiment of the utility model is not effective;

[0025] Figure 4 This is a diagram showing the effect of the over-travel protection provided by an embodiment of the utility model taking effect.

[0026] Among them: 1-bottom plate, 2-pin shaft, 3-operating rod body, 4-first sleeve, 5-spring, 6-second sleeve, 7-clamping ring, 8-abutment part. DETAILED DESCRIPTION

[0027] The following will combine the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two.

[0028] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0029] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions:

[0030] Please refer to Figure 1 , Figure 2 , In a first aspect, the utility model provides an over-travel protection device, comprising: an operating rod body 3, a shaft sleeve assembly;

[0031] The operating rod body 3 is rotatably disposed inside the shaft sleeve assembly and is provided with an abutment portion 8 abutting against the shaft sleeve assembly;

[0032] The sleeve assembly includes a first sleeve 4, a second sleeve 6 and an elastic member, wherein the elastic member is disposed in a receiving space formed by the first sleeve 4 and the second sleeve 6, and abuts against the first sleeve 4 and the second sleeve 6, respectively, so that a first gap is formed between the first sleeve 4 and the second sleeve 6, and the distance of the first gap is adjustable;

[0033] A protrusion is formed on one end of the abutting portion 8 facing the first sleeve 4, and a recessed portion matching the protrusion is formed on one end of the first sleeve 4 facing the abutting portion 8;

[0034] The operating rod body 3 is used to drive the first sleeve 4 and the second sleeve 6 to rotate along the axis of the operating rod body 3. The second sleeve 6 has a maximum movement distance, and when the second sleeve 6 moves to the maximum movement distance, the protrusion rotates around the axis of the operating rod body 3 to drive the first sleeve 4 to move toward the position of the second sleeve 6, so that the operating rod body 3 can continue to rotate along its axis.

[0035] Furthermore, the elastic member in the present application may be a spring 5, and the present application does not make any specific limitation on this.

[0036] The present application arranges the first sleeve 4 and the second sleeve 6 at intervals, and provides a protrusion on the abutment 8, and the first sleeve 4 is provided with a recessed portion that matches the protrusion. When the second sleeve 6 reaches the preset distance, the second sleeve 6 cannot continue to rotate at this time. If the operating rod body 3 needs to continue to rotate, the user continues to rotate the operating rod body 3, and the operating rod body 3 will drive the protrusion on the abutment 8 to rotate. At this time, the downward pressure of the operating rod body 3 on the first sleeve 4 exceeds the elastic force of the spring 5, and the first sleeve 4 moves downward to squeeze the first gap, providing space for the protrusion to continue to rotate. Therefore, the present application can continue to rotate the operating rod body 3 after the second sleeve 6 reaches the preset distance, which effectively improves the use scenario of the operating rod body 3 and provides more uses for the operating rod body 3.

[0037] For further information, please refer to Figure 1-Figure 2 The overtravel protection device also includes a limit assembly, which includes a limit piece and a bottom plate 1. The bottom plate 1 is fixedly connected to the second sleeve 6. A avoidance hole for avoiding the operating rod body 3 is opened on the bottom plate 1. The operating rod body 3 is fixedly connected to the bottom plate 1. The limit piece is fixedly arranged on the bottom plate 1, and when the second sleeve 6 moves to the maximum movement distance, the position of the bottom plate 1 and the second sleeve 6 is limited. The present application can be provided with a bottom plate 1 and a limit piece according to actual needs, wherein the bottom plate 1 and the second sleeve 6 are fixedly connected, and the fixed connection can be cast, welded, etc. The application does not make any specific limitation on this. At the same time, the limit member and the base plate 1 in the application are also fixedly connected, and the fixed connection method is also not specifically limited in the application. In the above structure, the limit member needs to cooperate with another component for limiting (not shown in the figure), and the limit member in the application can be a pin 2, which passes through the base plate 1 and is mainly used to limit the position of the base plate 1 and the second sleeve 6. In addition, the distance between the pin 2 and the operating rod can be changed according to actual needs, thereby making the application more suitable for some compact controllers.

[0038] For further information, please refer to Figure 1 The limiting assembly also includes a snap ring 7, which is arranged on the side of the operating rod body 3 protruding from the bottom plate 1 and is fixedly connected to the operating rod body 3, and the size of the snap ring 7 is larger than the size of the avoidance hole. In the above structure, the size of the snap ring 7 is larger than the size of the avoidance hole and is fixedly connected to the operating rod body 3, thereby preventing the operating rod body 3 from falling off from the avoidance hole, thereby improving the stability of the overall structure of the present application.

[0039] Furthermore, the sleeve assembly further includes a first interference portion and a second interference portion corresponding to each other;

[0040] The first interference portion is arranged at one end of the first sleeve 4 facing the second sleeve 6, and the second interference portion is arranged at one end of the second sleeve 6 facing the first sleeve 4. The first interference portion and the second interference portion are in contact with each other to limit the relative position of the first sleeve 4 and the second sleeve 6. It can be seen from the figure that the first sleeve 4 and the second sleeve 6 in the present application are cross-nested. The purpose of such design is, on the one hand, to enable the first interference portion and the second interference portion to contact each other, so that when the operating rod body 3 drives the base plate 1 to move, the second sleeve 6 can drive the first sleeve 4 to move together through the interference portion and the second interference portion. On the other hand, the first interference portion and the second interference portion in the present application correspond one to one, so that the space outside the first sleeve 4 and the second sleeve 6 can be better utilized, that is, the first interference portion and the second interference portion shown in the figure will not protrude from the outside of the first sleeve 4 and the second sleeve 6, so as to avoid excessive occupation of the space outside the first sleeve 4 and the second sleeve 6, thereby saving space and improving the overall aesthetics.

[0041] For further information, please refer to Figure 1-Figure 2 The raised portion has a first vertex away from the recessed portion, and the recessed portion has a second vertex away from the raised portion. The vertical distance between the first vertex and the second vertex is the second gap, and the second gap distance is adjustable. It can be seen from the figure that X in the figure is the first gap distance, and Y is the second gap distance, wherein the specific values ​​of X and Y are variable. In other words, the first gap distance is greater than the second gap distance, or the first gap distance is less than the second gap distance. When the first gap distance X is less than the second gap distance Y, the space available for the operating rod body 3 to rotate is small at this time, and it can only rotate a partial angle and cannot continue to rotate. When the X distance exceeds the Y distance, after the operating rod body 3 rotates 180° at this time, the first sleeve 4 will move to a position away from the second sleeve 6 under the action of the spring 5, and the raised portion and the recessed portion will cooperate with each other at this time, so that the gap between the abutting portion 8 and the first sleeve 4 becomes smaller until the abutting portion 8 is completely in contact with the first sleeve 4.

[0042] For further information, please refer to Figure 3 The side of the raised portion facing the first sleeve 4 is a first bevel structure, and the side of the recessed portion facing the abutting portion 8 is a second bevel structure. The first bevel structure corresponds to the second bevel. In the present application, the connection between the abutting portion 8 and the first sleeve 4 can be set to a bevel structure, and when the pin shaft 2 runs to the clamping position, the user rotates the operating rod body 3 again. At this time, the raised portion on the abutting portion 8 in the present application is the bevel protrusion formed by the bevel structure, and this bevel protrusion will apply a downward pressure on the first sleeve 4. This downward pressure will exceed the elastic force of the spring 5, so that the first sleeve 4 moves downward to squeeze the first gap, providing space for the abutting portion 8 to continue to rotate, so that the user can continue to rotate the operating rod body 3.

[0043] Furthermore, the orthographic projection of the protrusion on the operating rod body 3 is a boss structure or a spiral structure. The present application can change the structure of the protrusion and the recess according to actual needs, and the present application does not make any specific limitation on this.

[0044] For further information, please refer to Figure 3-Figure 4 , Figure 3 This is the effect diagram when the over-travel protection is not effective. Figure 4 This is the effect diagram of the overtravel protection taking effect. When the second sleeve 6 moves to the maximum movement distance, it is Figure 3 If the operating rod body 3 needs to continue to rotate, the user continues to rotate the operating rod body 3, and the operating rod body 3 drives the protrusion on the abutment portion 8 to rotate. At this time, the downward pressure of the operating rod body 3 on the first sleeve 4 exceeds the elastic force of the spring 5, and the first sleeve 4 moves downward to squeeze the first gap, providing space for the protrusion to continue to rotate, that is, Figure 4 As shown in , in the above structure, the present application can continue to rotate the operating rod body 3 after the second sleeve 6 reaches the preset distance, which effectively improves the use scenario of the operating rod body 3 and provides more uses for the operating rod body 3.

[0045] In the second aspect, the utility model also provides a handle, including an over-travel protection device as described above and an operating handle, wherein the operating rod body 3 in the over-travel protection device is connected to the operating handle, thereby solving the problem that the handle cannot continue to be used normally due to over-travel.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An over-travel protection device, characterized in that: include: Operating rod body and sleeve assembly; The operating rod body is rotatably disposed inside the shaft sleeve assembly and is provided with an abutment portion abutting against the shaft sleeve assembly; The sleeve assembly comprises a first sleeve, a second sleeve and an elastic member, wherein the elastic member is disposed in a receiving space formed by the first sleeve and the second sleeve, and abuts against the first sleeve and the second sleeve respectively, so that a first gap is formed between the first sleeve and the second sleeve, and the distance of the first gap is adjustable; A protrusion is formed on one end of the abutting portion facing the first sleeve, and a recessed portion matching the protrusion is formed on one end of the first sleeve facing the abutting portion; The operating rod body is used to drive the first sleeve and the second sleeve to rotate along the axis of the operating rod body. The second sleeve has a maximum movement distance, and when the second sleeve moves to the maximum movement distance, the protrusion rotates around the axis of the operating rod body to drive the first sleeve to move toward the position of the second sleeve so that the operating rod body can continue to rotate along its axis.

2. The over-travel protection device according to claim 1, characterized in that: The over-travel protection device also includes a limit assembly, which includes a limit piece and a base plate. The base plate is fixedly connected to the second sleeve, and an avoidance hole for avoiding the operating rod body is opened on the base plate. The operating rod body is fixedly connected to the base plate. The limit piece is fixedly arranged on the base plate, and limits the position of the base plate and the second sleeve when the second sleeve moves to the maximum movement distance.

3. The over-travel protection device according to claim 2, characterized in that: The limiting assembly also includes a snap ring, which is arranged on a side of the operating rod body protruding from the bottom plate and is fixedly connected to the operating rod body, and the size of the snap ring is larger than the size of the avoidance hole.

4. The over-travel protection device according to claim 1, characterized in that: The sleeve assembly further includes a first interference portion and a second interference portion corresponding to each other; The first interference portion is arranged at one end of the first sleeve facing the second sleeve, and the second interference portion is arranged at one end of the second sleeve facing the first sleeve. The first interference portion is in contact with the second interference portion to limit the relative position of the first sleeve and the second sleeve.

5. The over-travel protection device according to claim 1, characterized in that: The protruding portion has a first vertex away from the recessed portion, and the recessed portion has a second vertex away from the protruding portion. The vertical distance between the first vertex and the second vertex is a second gap, and the distance of the second gap is adjustable.

6. The over-travel protection device according to claim 5, characterized in that: The first gap distance is greater than the second gap distance; Alternatively, the first gap distance is smaller than the second gap distance.

7. The over-travel protection device according to claim 1, characterized in that: The side of the protrusion facing the first sleeve is a first bevel structure, and the side of the recessed portion facing the abutting portion is a second bevel structure, and the first bevel structure corresponds to the second bevel.

8. The over-travel protection device according to claim 1, characterized in that: The orthographic projection of the protrusion on the operating rod body is a boss structure or a spiral structure.

9. The over-travel protection device according to claim 2, characterized in that: The limiting member comprises a pin shaft, and the pin shaft is arranged through the bottom plate.

10. A handle, characterized in that: It comprises an over-travel protection device as described in any one of claims 1 to 9 and an operating handle, wherein the operating rod body in the over-travel protection device is connected to the operating handle.

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