Locking rod assembly and space rotating mechanism

Abstract

The utility model relates to the technical field of locking structures, and provides a locking rod assembly and a space rotating mechanism. The locking rod assembly comprises a locking rod body, wherein a mounting cavity is formed in the first end of the locking rod body; the inner pin seat is mounted in the mounting cavity, and a bolt hole is formed in the inner pin seat; the buffer part is arranged on the outer wall surface of the inner pin seat; and the pressing assembly is connected to the outer wall face of the inner pin seat, the buffering piece is located between the pressing assembly and the outer wall face of the inner pin seat, and the pressing assembly is suitable for extruding the buffering piece so as to change the deformation amount of the buffering piece. According to the locking rod assembly, the rigidity of the locking rod assembly can be adjusted, the locking rod body can be made into a non-flexible part, and the stress of the locking rod body is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of locking structures, and in particular to a locking rod assembly and a spatial rotation mechanism. Background Art

[0002] In the locking of a spatial rotation mechanism, a pin puller with a tapered pin or a straight pin is generally used. In order to reduce vibration, the locking rod of the pin puller is made flexible in the related art, and the locking rod is directly made into a flexible rod, which makes it difficult to adjust the rigidity of the locking rod. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a locking rod assembly, which can adjust the rigidity of the locking rod assembly and make the locking rod body into a non-flexible part, thereby reducing the stress of the locking rod body.

[0004] The application also proposes a spatial rotation mechanism.

[0005] According to the first aspect of the present application, the locking rod assembly includes:

[0006] A locking rod body, wherein a first end of the locking rod body is formed with a mounting cavity;

[0007] An inner pin seat is installed in the installation cavity, and the inner pin seat is formed with a pin hole;

[0008] A buffer member, arranged on the outer wall surface of the inner pin seat;

[0009] The clamping assembly is connected to the outer wall of the inner pin seat, the buffer is located between the clamping assembly and the outer wall of the inner pin seat, and the clamping assembly is suitable for squeezing the buffer to change the deformation of the buffer.

[0010] According to the locking rod assembly of the embodiment of the present application, the buffer is arranged on the outer wall of the inner pin seat, and then the buffer is fixed and pressed by the clamping assembly. It should be noted that the clamping assembly can be used to squeeze the buffer to change the deformation of the buffer, that is, the clamping assembly can adjust the tightness of the buffer. The inner pin seat with the buffer installed is installed in the installation cavity. When the locking pin and other components are inserted into the pin hole of the inner pin seat, if the locking pin is to vibrate radially, it is necessary to overcome the resistance of the buffer. The compression of the buffer by the clamping assembly can change the deformation of the buffer, and then change the stiffness coefficient of the buffer, so that the resistance that needs to be overcome when the locking pin vibrates also changes, so that the locking rod assembly can have different flexibility, and the stiffness adjustment of the locking rod assembly is realized. There is no need to make the locking rod body into a flexible part, and the locking rod body can be directly made into a rigid part, thereby reducing the stress of the locking rod body.

[0011] According to one embodiment of the present application, the clamping assembly includes an inner pressure ring, an installation space is formed between the inner pressure ring and the inner pin seat, the buffer member is located in the installation space, and the inner pressure ring is suitable for clamping the buffer member.

[0012] According to an embodiment of the present application, the buffer component is an annular buffer component, and the annular buffer component is sleeved on the outer wall surface of the inner pin seat.

[0013] According to an embodiment of the present application, a limiting groove is formed on the outer wall surface of the inner pin seat, the buffer component is installed in the limiting groove, and the buffer component abuts against the inner wall surface of the limiting groove.

[0014] According to one embodiment of the present application, radial gaps are provided between the inner pin seat and the inner wall surface of the installation cavity, and between the clamping assembly and the inner wall surface of the installation cavity.

[0015] According to an embodiment of the present application, an end portion of the first end of the locking rod body is formed with an opening communicating with the mounting cavity, and the locking rod assembly includes a limiting cover, which is disposed at the opening.

[0016] According to an embodiment of the present application, the limiting cover is formed with a through hole, the through hole is coaxially arranged with the latch hole, and the diameter of the through hole is greater than or equal to the diameter of the latch hole.

[0017] According to an embodiment of the present application, the limiting cover is detachably connected to the locking rod body.

[0018] According to an embodiment of the present application, the locking rod body is a rigid member.

[0019] According to the spatial rotation mechanism of the second embodiment of the present application, it includes a locking pin and the above-mentioned locking rod assembly, and the connecting end of the locking pin is inserted into the pin hole.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1It is a structural schematic diagram of the locking rod assembly provided in an embodiment of the present application, wherein the locking pin is inserted into the pin hole of the inner pin seat.

[0023] Reference numerals:

[0024] 1. Locking rod body; 2. Inner pin seat; 3. Buffer; 4. Clamping assembly; 5. Radial clearance;

[0025] 6. Limit cover; 7. Locking pin. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0027] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0029] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] Combine the following Figure 1 The locking rod assembly and the spatial rotation mechanism of the present application are described.

[0032] According to the embodiment of the first aspect of the present application, Figure 1 As shown, the locking lever assembly includes:

[0033] A locking rod body 1, wherein a first end of the locking rod body 1 is formed with a mounting cavity;

[0034] The inner pin seat 2 is installed in the installation cavity, and the inner pin seat 2 is formed with a pin hole;

[0035] A buffer member 3 is provided on the outer wall surface of the inner pin seat 2;

[0036] The clamping assembly 4 is connected to the outer wall of the inner pin seat 2 . The buffer member 3 is located between the clamping assembly 4 and the outer wall of the inner pin seat 2 . The clamping assembly 4 is suitable for squeezing the buffer member 3 to change the deformation of the buffer member 3 .

[0037] According to the locking rod assembly of the embodiment of the present application, the buffer 3 is arranged on the outer wall surface of the inner pin seat 2, and then the buffer 3 is fixed and pressed by the pressing assembly 4. It should be noted that the pressing assembly 4 can be used to squeeze the buffer 3 to change the deformation of the buffer 3, that is, the pressing assembly 4 can adjust the tightness of the buffer 3. The inner pin seat 2 with the buffer 3 installed is installed in the installation cavity. When the locking pin 7 and other components are inserted into the pin hole of the inner pin seat 2, if the locking pin 7 is to vibrate radially, it is necessary to overcome the resistance of the buffer 3. The compression of the buffer 3 by the pressing assembly 4 can change the deformation of the buffer 3, and then change the stiffness coefficient of the buffer 3, so that the resistance that needs to be overcome when the locking pin 7 vibrates also changes, so that the locking rod assembly can have different flexibility, and the stiffness adjustment of the locking rod assembly is realized. There is no need to make the locking rod body 1 into a flexible part, and the locking rod body 1 can be directly made into a rigid part, thereby reducing the stress of the locking rod body 1.

[0038] It is understandable that the stiffness coefficient of the buffer 3 can be adjusted to a desired value by using the pressing assembly 4 before the inner pin seat 2 is installed in the installation cavity of the locking rod body 1. Alternatively, the buffer 3 can be initially fixed by using the pressing assembly 4, and then the inner pin seat 2 can be installed in the installation cavity, and then the stiffness coefficient of the buffer 3 can be adjusted by using the pressing assembly 4.

[0039] It is understandable that the buffer member 3 is made of, for example, a wire mesh pad or rubber.

[0040] It is understandable that in order to reduce vibration, the related art will cut a flexible groove or reduce the wall thickness of the locking rod, which leads to the locking rod needing to be accurately calculated during design. In the physical installation and testing stage, it is impossible to quickly adjust the stiffness according to the effect, and it is difficult to take into account both flexible buffering and limited swing limit, and the stress of the locking rod will be relatively large. However, the present application indirectly adjusts the stiffness coefficient of the entire locking rod assembly by adding an additional buffer 3 and adjusting the stiffness coefficient of the buffer 3 through the clamping assembly 4, and thus does not need to perform flexible adjustment on the locking rod body 1, which can effectively avoid excessive stress on the locking rod body 1, and the installation cavity of the locking rod assembly can limit the inner pin seat 2, and the buffer 3 can play a flexible buffering role on the locking pin 7 and other components.

[0041] In one embodiment of the present application, the clamping assembly 4 includes an inner pressure ring, an installation space is formed between the inner pressure ring and the inner pin seat 2, the buffer member 3 is located in the installation space, and the inner pressure ring is suitable for clamping the buffer member 3.

[0042] It can be understood that the buffer 3 is installed in the installation space between the inner pressure ring and the inner pin seat 2, so that the inner pressure ring can play a role in fixing and limiting the buffer 3, and the inner pressure ring can be used to press the buffer 3, change the rigidity of the buffer 3, and thereby change the rigidity of the locking rod assembly installed with the inner pin seat 2.

[0043] In the embodiment of the present application, the inner pressure ring is provided with a clamping screw, and the clamping screw can move relative to the buffer member 3.

[0044] It can be understood that by providing a clamping screw at the inner pressure ring, the clamping screw can be rotated to move the clamping screw closer to or away from the buffer 3. When the rigidity of the buffer 3 needs to be increased, the clamping screw is rotated to move the clamping screw toward the buffer 3, so that the clamping screw further compresses the buffer 3. When the rigidity of the buffer 3 needs to be reduced, the clamping screw is rotated to move the clamping screw away from the buffer 3, so that the clamping screw gradually releases the buffer 3.

[0045] It should be noted that the clamping screw is only an example, and the clamping screw can also be replaced by any suitable component such as a bolt, a pressure plate, etc. that can be used to clamp the buffer member 3.

[0046] In one embodiment of the present application, the buffer member 3 is an annular buffer member 3 , and the annular buffer member 3 is sleeved on the outer wall surface of the inner pin seat 2 .

[0047] It is understandable that the annular buffer 3 is sleeved on the outer wall of the inner pin seat 2 so that the buffer 3 can play a comprehensive buffering role on the inner pin seat 2, and the annular buffer 3 ensures that the rigidity of each direction of the inner pin seat 2 remains consistent.

[0048] In one embodiment of the present application, a limiting groove is formed on the outer wall surface of the inner pin seat 2, and the buffer member 3 is installed in the limiting groove, and the buffer member 3 abuts against the inner wall surface of the limiting groove.

[0049] It can be understood that by forming a limiting groove on the outer wall surface of the inner pin seat 2 and using the limiting groove to limit the buffer member 3, the installation stability of the buffer member 3 is improved.

[0050] It can be understood that a protrusion is formed on the outer wall of the inner pin seat 2, and a limiting groove is formed between the wall of the protrusion and the outer wall of the inner pin seat 2, and the buffer member 3 abuts against the wall of the protrusion and the outer wall of the inner pin seat 2 at the same time.

[0051] In one embodiment of the present application, Figure 1 As shown, radial gaps 5 are provided between the inner pin seat 2 and the inner wall surface of the installation cavity, and between the clamping assembly 4 and the inner wall surface of the installation cavity.

[0052] It can be understood that the radial gap 5 between the inner pin seat 2 and the inner wall surface of the installation cavity and the radial gap 5 between the clamping assembly 4 and the inner wall surface of the installation cavity are set to be the same, which ensures that the radial gap 5 between the inner pin seat 2 as a whole and the inner wall surface of the installation cavity is consistent. Then, when the locking pin 7 and other components are inserted into the pin hole, the distance that the locking pin 7 can be displaced after overcoming the resistance of the buffer 3 is the radial gap 5, thereby realizing the displacement limitation of the locking pin 7 and other components.

[0053] In one embodiment of the present application, Figure 1 As shown, an opening communicating with the mounting cavity is formed at the end of the first end of the locking rod body 1, and the locking rod assembly includes a limiting cover 6, which is disposed at the opening.

[0054] It is understandable that after the inner pin seat 2 is installed in the installation cavity of the locking rod body 1, the limit cover 6 is covered at the opening so that the limit cover 6 can limit the inner pin seat 2 so that the inner pin seat 2 can be stably installed in the installation cavity.

[0055] In the embodiment of the present application, the limiting cover 6 is formed with a through hole, the through hole is coaxially arranged with the latch hole, and the diameter of the through hole is greater than or equal to the diameter of the latch hole.

[0056] It can be understood that the through hole and the pin hole of the limit cover 6 are set to be coaxial, and the diameter of the through hole is greater than or equal to the diameter of the pin hole, which ensures that components such as the locking pin 7 can be inserted into the pin hole after passing through the through hole, so that the limit cover 6 will not affect the insertion and removal of the locking pin 7.

[0057] In the embodiments of the present application, Figure 1 As shown, the limiting cover 6 is detachably connected to the locking rod body 1 .

[0058] It is understandable that the connection between the limit cover 6 and the locking rod body 1 is configured to be detachable, so as to facilitate the maintenance and replacement of the inner pin seat 2.

[0059] It can be understood that a snap-in groove is formed on the outer wall surface of the locking rod body 1, one end of the limit cover 6 is snap-connected to the snap-in groove, and the other end of the limit cover 6 extends toward the mounting cavity, so that the other end of the limit cover 6 is located on the moving path of the latch seat. The limit cover 6 can effectively limit the latch seat.

[0060] In one embodiment of the present application, the locking rod body 1 is a rigid member.

[0061] It is understandable that since the stiffness coefficient of the locking rod assembly is adjusted by the degree of deformation of the buffer 3, a rigid member can be used as the locking rod body 1, ensuring the mechanical strength and stiffness of the locking rod body 1 without the risk of excessive stress.

[0062] According to an embodiment of the second aspect of the present application, Figure 1 As shown, the spatial rotation mechanism includes a locking pin 7 and the above-mentioned locking rod assembly, and the connecting end of the locking pin 7 is inserted into the pin hole.

[0063] According to the spatial rotation mechanism of the embodiment of the present application, the buffer 3 is arranged on the outer wall surface of the inner pin seat 2, and then the buffer 3 is fixed and pressed by the pressing assembly 4. It should be noted that the pressing assembly 4 can be used to squeeze the buffer 3 to change the deformation of the buffer 3, that is, the pressing assembly 4 can adjust the tightness of the buffer 3. The inner pin seat 2 with the buffer 3 installed is installed in the installation cavity. When the locking pin 7 is inserted into the pin hole of the inner pin seat 2, if the locking pin 7 is to vibrate radially, it is necessary to overcome the resistance of the buffer 3. The compression of the buffer 3 by the pressing assembly 4 can change the deformation of the buffer 3, and then change the stiffness coefficient of the buffer 3, so that the resistance that needs to be overcome when the locking pin 7 vibrates also changes, so that the locking rod assembly can have different flexibility, and the stiffness adjustment of the locking rod assembly is realized. There is no need to make the locking rod body 1 into a flexible part, and the locking rod body 1 can be directly made into a rigid part, thereby reducing the stress of the locking rod body 1.

[0064] Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A locking rod assembly, characterized in that: include: A locking rod body, wherein a first end of the locking rod body is formed with a mounting cavity; An inner pin seat is installed in the installation cavity, and the inner pin seat is formed with a pin hole; A buffer member, arranged on the outer wall surface of the inner pin seat; The clamping assembly is connected to the outer wall of the inner pin seat, the buffer is located between the clamping assembly and the outer wall of the inner pin seat, and the clamping assembly is suitable for squeezing the buffer to change the deformation of the buffer.

2. The locking rod assembly according to claim 1, characterized in that: The clamping assembly comprises an inner pressure ring, an installation space is formed between the inner pressure ring and the inner pin seat, the buffer member is located in the installation space, and the inner pressure ring is suitable for clamping the buffer member.

3. The locking rod assembly according to claim 1, characterized in that: The buffer is an annular buffer, and the annular buffer is sleeved on the outer wall surface of the inner pin seat.

4. The locking rod assembly according to claim 1, characterized in that: The outer wall surface of the inner pin seat forms a limiting groove, the buffer component is installed in the limiting groove, and the buffer component abuts against the inner wall surface of the limiting groove.

5. The locking rod assembly according to any one of claims 1 to 4, characterized in that: A radial gap is provided between the inner pin seat and the inner wall surface of the installation cavity, and between the clamping assembly and the inner wall surface of the installation cavity.

6. The locking rod assembly according to any one of claims 1 to 4, characterized in that: An opening communicating with the mounting cavity is formed at the end of the first end of the locking rod body, and the locking rod assembly comprises a limiting cover, which is disposed at the opening.

7. The locking rod assembly according to claim 6, characterized in that: The limiting cover is formed with a through hole, the through hole is coaxially arranged with the pin hole, and the diameter of the through hole is greater than or equal to the diameter of the pin hole.

8. The locking rod assembly according to claim 6, wherein: The limiting cover is detachably connected to the locking rod body.

9. The locking rod assembly according to any one of claims 1 to 4, characterized in that: The locking rod body is a rigid part.

10. A spatial rotation mechanism, characterized in that: It comprises a locking pin and a locking rod assembly as claimed in any one of claims 1 to 9, wherein the connecting end of the locking pin is inserted into the pin hole.

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