Movement positioning device

Abstract

The utility model discloses a positioning device of a machine core, which belongs to the technical field of automobile accessories and comprises a connecting shaft head and a locking nut, and at least two guide holes are circumferentially arranged on one end face of the connecting shaft head. A limiting groove is formed in the hole wall of the guide hole; the extending direction of the limiting groove is parallel to the axial direction of the connecting shaft head; the locking nut is arranged in the guide hole, and a clamping piece matched with the limiting groove is arranged on the outer side face of the locking nut. By embedding the locking nut into the guide hole of the connecting shaft head and ensuring that the clamping piece of the guide hole is matched with the limiting groove of the guide hole, the circumferential rotation of the locking nut can be limited, so that when any threaded locking piece is matched with the locking nut, the locking nut can only move in the axial direction of the connecting shaft head in a reciprocating mode, and the locking effect is improved. And therefore, the locking nut can drive the part to move directionally, and structural support is provided for achieving the fastening effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, and particularly relates to a positioning device for a movement. Background Art

[0002] During the assembly of an electronic rearview mirror and a car, a threaded connection is typically used to directly lock the battery cell carried by the electronic rearview mirror to the triangular mount on the car body. However, in actual use, it has been found that this connection method is not only unsatisfactory, but also gradually reduces the strength of the connection structure over time. In other words, after the electronic rearview mirror and the triangular mount are connected, the gap between them cannot be effectively eliminated. Therefore, during driving, the two will constantly shake slightly, causing the connection structure to loosen, and there is a risk that the battery cell will easily fall off the triangular mount. Utility Model Content

[0003] The technical problem to be solved by the utility model is: how to provide a positioning device for a movement to improve the connection reliability between the movement and the vehicle body.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A positioning device for a movement, comprising a connecting shaft head and a locking nut, wherein at least two guide holes are circumferentially provided on one end surface of the connecting shaft head;

[0006] A limiting groove is provided on the hole wall of the guide hole;

[0007] The extending direction of the limiting groove is parallel to the axial direction of the connecting shaft head;

[0008] The locking nut is arranged in the guide hole, and a clamping piece adapted to the limiting groove is provided on the outer side of the locking nut.

[0009] Furthermore, it also includes a rotating shaft, a triangular seat and a threaded connection;

[0010] One end of the rotating shaft is provided with a snap ring;

[0011] When the threaded connector is threadedly connected to the locking nut, the clamping ring is arranged between the connecting shaft head and the triangular seat;

[0012] When the threaded connector and the locking nut are in a locked state, the end of the clamping ring away from the locking nut is tightly fitted with the triangular seat under the push of the locking nut.

[0013] Furthermore, the triangular seat includes an annular enclosure;

[0014] The connecting shaft head is a ring-shaped structure;

[0015] At least two first limiting protrusions are provided on the inner side wall of the annular enclosure in a circumferential direction;

[0016] At least two first limiting grooves adapted to the first limiting protrusions are circumferentially provided on the outer edge of the connecting shaft head;

[0017] When the threaded connector is threadedly connected to the locking nut, the first limiting protrusion and the first limiting groove are engaged with each other.

[0018] Furthermore, the clamping ring is provided with a first through hole corresponding to the guide hole.

[0019] Furthermore, a second through hole is provided on the triangular seat;

[0020] When the first limiting protrusion is engaged with the first limiting groove, the corresponding guide hole, the first through hole and the second through hole are coaxially arranged.

[0021] Furthermore, it also includes a housing, a spring and a collar;

[0022] A portion of the rotating shaft, the spring and the collar are all disposed in the housing;

[0023] The clamping ring is clamped on the end of the rotating shaft away from the clamping ring;

[0024] The spring is sleeved on the outside of the rotating shaft, and the two ends of the spring are respectively in contact with the clamping ring and the inner wall of the shell;

[0025] The outer side wall of the shell body is in conflict with the connecting shaft head.

[0026] The beneficial effect of the present invention is that the positioning device of the movement provided by the present invention can limit the circumferential rotation of the locking nut by embedding the locking nut in the guide hole of the connecting shaft head and ensuring that the clamping part of the guide hole is adapted to the limiting groove of the guide hole. Therefore, when any threaded locking part cooperates with the locking nut, the locking nut can only move back and forth along the axial direction of the connecting shaft head, thereby providing structural support for the locking nut to drive the parts to move in a directional manner to achieve the tightening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Shown is a structural schematic diagram of a connecting shaft head according to a specific embodiment of the present utility model;

[0028] Figure 2 Shown is a schematic structural diagram of a rotating shaft according to a specific embodiment of the present utility model;

[0029] Figure 3 Shown is a structural schematic diagram of a triangular seat according to a specific embodiment of the present utility model;

[0030] Figure 4Shown is a partial cross-sectional view of the positioning device (in pre-assembly) of the movement according to a specific embodiment of the present invention;

[0031] Figure 5 Shown Figure 4 A magnified view of point A;

[0032] Figure 6 Shown is a partial cross-sectional view of the positioning device (when locked) of the movement according to a specific embodiment of the present invention;

[0033] Description of labels:

[0034] 1. Connecting shaft head; 11. Guide hole; 111. Limiting groove; 12. First limiting groove; 13. Second limiting groove;

[0035] 2. Lock nut; 21. Snap-on fitting;

[0036] 3. Rotating shaft; 31. Snap ring; 311. First through hole; 312. Position-limiting baffle; 32. Second position-limiting protrusion;

[0037] 4. Triangular seat; 41. Annular enclosure; 411. First limiting protrusion; 412. Avoidance groove; 42. Second through hole;

[0038] 5. Threaded connectors;

[0039] 6. Shell;

[0040] 7. Spring;

[0041] 8. Clamp ring. DETAILED DESCRIPTION

[0042] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0043] The most critical concept of the present invention is that the circumferential rotation of the locking nut can be restricted by cooperating the clamping piece of the locking nut with the clamping limit groove of the guide hole. Therefore, when any threaded locking piece cooperates with the locking nut, the locking nut can only move back and forth along the axial direction of the connecting shaft head, thereby providing structural support for the locking nut to drive the parts to move in a directional manner to achieve the tightening effect.

[0044] Please refer to Figures 1 to 6 The positioning device of the movement provided by the present invention comprises a connecting shaft head 1 and a locking nut 2, and at least two guide holes 11 are provided on one end surface of the connecting shaft head 1 in a circumferential direction;

[0045] A limiting groove 111 is provided on the hole wall of the guide hole 11;

[0046] The extending direction of the limiting groove 111 is parallel to the axial direction of the connecting shaft head 1;

[0047] The locking nut 2 is disposed in the guide hole 11 , and a clamping member 21 adapted to the limiting groove 111 is provided on the outer side surface of the locking nut 2 .

[0048] Specifically, since the present invention aims to solve the problem of how to improve the connection reliability between the movement and the body, the internal structure of the movement and the specific working principle of the internal structure will not be described in detail below. For details, please refer to the structure and working principle of the "folding device" disclosed in the Chinese utility model patent application number 202322570145.2.

[0049] From the above description, it can be seen that the beneficial effect of the present invention is that: a positioning device for a movement is provided, which limits the circumferential rotation of the locking nut 2 by embedding the locking nut 2 in the guide hole 11 of the connecting shaft head 1, and ensuring that the clamping part 21 of the guide hole 11 is adapted to the limiting groove 111 of the guide hole 11, so that when any threaded locking part cooperates with the locking nut 2, the locking nut 2 can only move back and forth along the axial direction of the connecting shaft head 1, thereby providing structural support for the locking nut 2 to drive the parts to move in a directional manner to achieve a tightening effect; compared with the existing movement positioning device, while completing the basic connection work, it can also further improve the connection strength of the connection, thereby fully eliminating the gap between the two structures to be connected, thereby avoiding the problem of loosening due to vibration.

[0050] Furthermore, the positioning device of the movement further includes a rotating shaft 3, a triangular seat 4 and a threaded connection 5;

[0051] One end of the rotating shaft 3 is provided with a snap ring 31;

[0052] When the threaded connector 5 is threadedly connected to the locking nut 2, the clamping ring 31 is arranged between the connecting shaft head 1 and the triangular seat 4;

[0053] When the threaded connector 5 and the locking nut 2 are in a locked state, the end of the clamping ring 31 away from the locking nut 2 is pushed by the locking nut 2 to fit tightly with the triangular seat 4.

[0054] Furthermore, the triangular seat 4 includes an annular enclosure 41;

[0055] The connecting shaft head 1 is a ring-shaped structure;

[0056] At least two first limiting protrusions 411 are provided on the inner side wall of the annular enclosure 41 in the circumferential direction;

[0057] At least two first limiting grooves 12 adapted to the first limiting protrusions 411 are circumferentially provided at the outer edge of the connecting shaft head 1;

[0058] When the threaded connector 5 is threadedly connected to the locking nut 2 , the first limiting protrusion 411 and the first limiting groove 12 are engaged, and the annular enclosure 41 is in surface contact with the connecting shaft head 1 in the axial direction of the rotating shaft 3 .

[0059] From the above description, it can be seen that the design has further optimized the component structure of the positioning device. By setting a clamping ring 31 at one end of the rotating shaft 3, after the threaded connector 5 and the locking nut 2 are tightened, the locking nut 2 can provide structural support for the rotating shaft 3 and the triangular seat 4 to fit tightly together, so that the gap between the movement and the triangular seat 4 can be completely eliminated after the assembly, thereby avoiding slight shaking between the two during the driving of the car, resulting in a decrease in the connection strength between the two; at the same time, a first limiting protrusion 411 and a first limiting groove 12 are further provided on the triangular seat 4 and the connecting shaft head 1 respectively, which can limit the connecting shaft head 1 in the circumferential direction, thereby preventing the connecting shaft head 1 from rotating relative to the triangular seat 4, so that the threaded connector 5 can better drive the locking nut 2 to move toward the clamping ring 31 along the axial direction of the connecting shaft head 1.

[0060] Furthermore, at least two second limiting protrusions 32 are provided on the circumferential direction of the clamping ring 31;

[0061] The connecting shaft head 1 is provided with at least two second limiting grooves 13 adapted to the second limiting protrusions 32 .

[0062] From the above description, it can be seen that the second limiting groove 13 on the connecting shaft head 1 can play a role of giving way to the second limiting protrusion 32 when assembling the connecting shaft head 1 and the rotating shaft 3, thereby avoiding the normal assembly work being affected by mutual interference between the connecting shaft head 1 and the rotating shaft 3. At the same time, the cooperation between the second limiting groove 13 and the second limiting protrusion 32 can also improve the positioning accuracy between the connecting shaft head 1 and the rotating shaft 3, so as to facilitate subsequent locking work.

[0063] Furthermore, a first through hole 311 corresponding to the guide hole 11 is provided on the clamping ring 31 between the second limiting protrusions 32 .

[0064] Furthermore, a second through hole 42 is provided on the triangular seat 4;

[0065] When the first limiting protrusion 411 is engaged with the first limiting groove 12 , the corresponding guide hole 11 , the first through hole 311 and the second through hole 42 are coaxially arranged.

[0066] Specifically, at least two avoidance grooves 412 are circumferentially arranged on the inner wall of the annular enclosure 41; at least two limit blocks 312 are circumferentially arranged at the edge of the clamping ring 31; since the limit blocks 312 are an inherent structure in the design process of the rotating shaft 3, in order to avoid mutual interference between the rotating shaft 3 and the connecting shaft head 1 during the assembly process, the avoidance grooves 412 are set on the inner wall of the annular enclosure 41 to achieve an avoidance effect.

[0067] From the above description, it can be seen that the design has made further improvements to the structure of the clamping ring 31, the connecting shaft head 1 and the triangular seat 4, thereby ensuring that after the connecting shaft head 1, the rotating shaft 3 and the triangular seat 4 are initially assembled, the guide hole 11, the first through hole 311 and the second through hole 42 can all be arranged relative to each other, so that the threaded connection 5 can be quickly connected to the locking nut 2, thereby improving the overall assembly efficiency.

[0068] Furthermore, the positioning device of the movement mentioned above further includes a housing 6, a spring 7 and a clamping ring 8;

[0069] A portion of the rotating shaft 3, the spring 7 and the collar 8 are all disposed in the housing 6;

[0070] The clamping ring 8 is clamped on the end of the rotating shaft 3 away from the clamping ring 31;

[0071] The spring 7 is sleeved on the outside of the rotating shaft 3, and the two ends of the spring 7 are respectively in contact with the clamping ring 8 and the inner wall of the housing 6;

[0072] The outer side wall of the housing 6 contacts the connecting shaft head 1 .

[0073] Specifically, the positioning device of the movement is usually further provided with a gear, and the two ends of the spring 7 are respectively in contact with the clamping ring 8 and the gear; the gear is pressed against the inner wall of the housing 6 under the action of elastic force.

[0074] From the above description, it can be seen that when the threaded connector 5 and the locking nut 2 are in a locked state, the locking nut 2 can easily drive the rotating shaft 3 to be close to the triangular seat 4 along the axial direction of the rotating shaft 3, thereby causing the clamping ring 8 at the other end of the rotating shaft 3 to also move synchronously toward the direction of the triangular seat 4, thereby squeezing the spring 7 so that the spring 7 generates a certain elastic force; under the action of this elastic force, not only can the rotating shaft 3 exert an opposite force on the locking nut 2 to eliminate the gap between the threaded connector 5 and the locking nut 2, thereby avoiding the two from loosening due to vibration, but also the shell 6 can fully contact the connecting shaft head 1, thereby making the various structures better and more tightly connected to improve the overall connection strength.

[0075] The movement positioning device of the utility model can assist the assembly work of the movement.

[0076] Please refer to Figures 1 to 6 , the first embodiment of the present utility model is:

[0077] A positioning device for a movement includes a connecting shaft head 1, a locking nut 2, a rotating shaft 3, a triangular seat 4, a threaded connector 5, a housing 6, a spring 7 and a clamping ring 8. Three guide holes 11 are circumferentially provided on one end surface of the connecting shaft head 1; a limiting groove 111 is provided on the hole wall of the guide hole 11; the extension direction of the limiting groove 111 is parallel to the axial direction of the connecting shaft head 1; the locking nut 2 is arranged in the guide hole 11, and the outer side surface of the locking nut 2 is provided with a clamping member 21 that is adapted to the limiting groove 111; a part of the rotating shaft 3, the spring 7 and the clamping ring 8 are all arranged in the housing 6; the clamping ring 8 is clamped at the end of the rotating shaft 3 away from the clamping ring 31; the spring 7 is sleeved on the outside of the rotating shaft 3, and the two ends of the spring 7 respectively conflict with the clamping ring 8 and the inner wall of the housing 6; the outer wall of the housing 6 conflicts with the connecting shaft head 1.

[0078] A clamping ring 31 is provided at one end of the rotating shaft 3; when the threaded connector 5 is threadedly connected to the locking nut 2, the clamping ring 31 is arranged between the connecting shaft head 1 and the triangular seat 4; when the threaded connector 5 and the locking nut 2 are in a locked state, the end of the clamping ring 31 away from the locking nut 2 is tightly fitted with the triangular seat 4 under the push of the locking nut 2.

[0079] The triangular seat 4 includes an annular enclosure 41; the connecting shaft head 1 is an annular structure; four first limiting protrusions 411 and four avoidance grooves 412 are circumferentially provided on the inner side wall of the annular enclosure 41; four first limiting grooves 12 adapted to the first limiting protrusions 411 are circumferentially provided on the outer edge of the connecting shaft head 1; when the threaded connector 5 is threadedly connected to the locking nut 2, the first limiting protrusion 411 and the first limiting groove 12 are engaged; three second limiting protrusions are circumferentially provided on the clamping ring 31 32; three second limiting grooves 13 adapted to the second limiting protrusions 32 are provided on the connecting shaft head 1; a first through hole 311 corresponding to the guide hole 11 is provided on the snap ring 31 between the second limiting protrusions 32; four limiting baffles 312 are circumferentially arranged at the edge of the snap ring 31; a second through hole 42 is provided on the triangular seat 4; when the first limiting protrusion 411 is engaged with the first limiting groove 12, the corresponding guide hole 11, the first through hole 311 and the second through hole 42 are coaxially arranged.

[0080] The working principle of the present utility model is as follows: first, the connecting shaft head 1 is sleeved on the outer side of the rotating shaft 3, and the second limiting groove 13 is engaged with the second limiting protrusion 32, so that the guide hole 11 is arranged opposite to the first through hole 311; then, the end of the rotating shaft 3 with the clamping ring 31 is placed into the triangular seat 4, and it is ensured that the first limiting protrusion 411 is engaged with the first limiting groove 12. At this time, the first through hole 311, the second through hole 42 and the guide hole 11 are in a coaxial state, and a gap of about 0.3mm to 0.7mm is left between the clamping ring 31 and the triangular seat 4. The gap is as follows: Figure 4The gap α in the middle;; at the same time, the annular enclosure 41 is in surface contact with the connecting shaft head 1 in the axial direction of the rotating shaft 3; finally, the threaded connector 5 is passed through the second through hole 42 and the first through hole 311 in sequence, so that it is connected to the locking nut 2 in the guide hole 11. When the threaded connector 5 and the locking nut 2 are in a locked state, the locking nut 2 drives the rotating shaft 3 and the clamping ring 8 on the rotating shaft 3 to move toward the direction of the triangular seat 4 until the clamping ring 31 is tightly fitted with the triangular seat 4. At this time, the spring 7 generates an elastic force under the action of the clamping ring 8, which causes the rotating shaft 3 to apply an opposite force to the locking nut 2 to eliminate the gap between the threaded connector 5 and the locking nut 2, while applying a force to the housing 6 that can counteract the connecting shaft head 1, thereby making the various structures better and more tightly connected to improve the overall connection strength.

[0081] In summary, the present invention provides a positioning device for a movement, which can limit the circumferential rotation of the locking nut by embedding the locking nut in the guide hole of the connecting shaft head and ensuring that the clip of the guide hole is adapted to the limiting groove of the guide hole. Therefore, when any threaded locking part cooperates with the locking nut, the locking nut can only move back and forth along the axial direction of the connecting shaft head, thereby providing structural support for the locking nut to drive the parts to move in a directional manner to achieve the tightening effect. Compared with the existing movement positioning device, while completing the basic connection work, it can also further improve the connection strength of the connection, thereby fully eliminating the gap between the two structures to be connected. The spring is pressed against the rotating shaft to prevent the screw from loosening due to vibration, and the locking nut is pressed against the rotating shaft to prevent the screw from loosening due to vibration.

[0082] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A positioning device for a movement, comprising a connecting shaft head and a locking nut, characterized in that: One end surface of the connecting shaft head is provided with at least two guide holes in the circumferential direction; A limiting groove is provided on the hole wall of the guide hole; The extending direction of the limiting groove is parallel to the axial direction of the connecting shaft head; The locking nut is arranged in the guide hole, and a clamping piece adapted to the limiting groove is provided on the outer side of the locking nut.

2. The movement positioning device according to claim 1, characterized in that: It also includes a rotating shaft, a triangular seat and a threaded connection; One end of the rotating shaft is provided with a snap ring; When the threaded connector is threadedly connected to the locking nut, the clamping ring is arranged between the connecting shaft head and the triangular seat; When the threaded connector and the locking nut are in a locked state, the end of the clamping ring away from the locking nut is tightly fitted with the triangular seat under the push of the locking nut.

3. The positioning device of the movement according to claim 2, characterized in that: The triangular seat includes an annular enclosure; The connecting shaft head is a ring-shaped structure; At least two first limiting protrusions are provided on the inner side wall of the annular enclosure in a circumferential direction; At least two first limiting grooves adapted to the first limiting protrusions are circumferentially provided on the outer edge of the connecting shaft head; When the threaded connector is threadedly connected to the locking nut, the first limiting protrusion and the first limiting groove are engaged with each other.

4. The positioning device of the movement according to claim 3, characterized in that: The clamping ring is provided with a first through hole corresponding to the guide hole.

5. The positioning device of the movement according to claim 4, characterized in that: The triangular seat is provided with a second through hole; When the first limiting protrusion is engaged with the first limiting groove, the corresponding guide hole, the first through hole and the second through hole are coaxially arranged.

6. The positioning device of the movement according to claim 2, characterized in that: Also includes a housing, a spring and a collar; A portion of the rotating shaft, the spring and the collar are all disposed in the housing; The clamping ring is clamped on the end of the rotating shaft away from the clamping ring; The spring is sleeved on the outside of the rotating shaft, and the two ends of the spring are respectively in contact with the clamping ring and the inner wall of the shell; The outer side wall of the shell body is in conflict with the connecting shaft head.

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