Middle pull rod type transmission rocker arm vehicle door outward opening handle

Abstract

The utility model provides a centrally-mounted pull rod type transmission rocker arm vehicle door outward opening handle which comprises a base fixedly arranged in a vehicle door; one end of the handle is rotationally mounted on the base, and the other end of the handle is provided with a drag hook; the rotating pin shaft is fixedly arranged on the base; a rotating support and a shifting support are arranged on the side portion of the rocker arm, a pin shaft hole for the rotating pin shaft to penetrate through is formed in the rotating support, the shifting support and the rotating support are arranged in a staggered mode in the axial direction of the rocker arm, and the drag hook is in lap joint with the shifting support; one end of the torsion spring is in lap joint with the rocker arm, and the other end of the torsion spring is in lap joint with the base; one end of the pull rod is rotationally connected with the rocker arm through a rotary connecting piece, and the other end is connected with the car door lock body. When the handle rotates, the pull hook on the handle pokes the poked support, so that the rocker arm rotates around the rotating pin shaft to drive the pull rod to open the car door lock body. The transmission structure has the effects of reducing energy consumption during transmission of the handle, improving transmission sensitivity and prolonging the service life of the transmission structure.

Description

A centrally mounted lever-type transmission rocker arm door outward opening handle Technical Field

[0001] This application relates to the field of automotive component technology, and in particular to a centrally mounted tie rod type transmission rocker arm door outward opening handle. Background Technology

[0002] With the rapid development of the automotive industry, the exterior door handle, as an important component of the car body, directly affects the user's driving experience and the overall quality of the vehicle.

[0003] Traditional outward-opening door handles typically use a cable-driven rocker arm. While this design is simple and easy to manufacture, it has revealed a series of problems over long-term use. First, the cable wears down due to frequent stretching, leading to decreased transmission efficiency and potential jamming or inability to open the door smoothly. Second, the positioning accuracy of the cable-driven system is insufficient, making it difficult to ensure accurate door opening every time, affecting the user's driving experience. Third, the cable-driven system requires high sealing; poor sealing can allow moisture and dust to intrude, accelerating component aging and affecting the door handle's lifespan and safety. Therefore, developing a more reliable and efficient centrally mounted drive mechanism is crucial. Summary of the Invention

[0004] In order to improve the above-mentioned problems of cable-driven outward door handles, this application provides a centrally mounted tie rod type rocker arm outward door handle.

[0005] The technical solution provided in this application for a centrally mounted tie rod type transmission rocker arm door outward opening handle is as follows:

[0006] A centrally mounted lever-type transmission rocker arm door outward opening handle includes:

[0007] The base is fixedly installed inside the car door;

[0008] The handle has one end rotatably mounted on the base and the other end provided with a pull hook;

[0009] Rotate the pin, which is fixedly mounted on the base;

[0010] The rocker arm has a rotating bracket and a toggle bracket on its side. The rotating bracket has a pin hole for the rotating pin to pass through. The toggle bracket is offset from the rotating bracket along the axial direction of the rocker arm. The hook overlaps with the toggle bracket.

[0011] A torsion spring is sleeved on the rotating pin, with one end connected to the rocker arm and the other end connected to the base;

[0012] The lever has a rotatable connector at one end and is rotatably connected to the rocker arm through the rotatable connector, and the other end is connected to the door lock body.

[0013] When the handle is turned, the hook on it moves the lever bracket, causing the rocker arm to rotate around the pivot pin, thereby driving the lever to open the door lock body. The torsion spring is used to drive the rocker arm to return to its original position.

[0014] Furthermore, the actuating bracket includes an actuating rod and two parallel arc-shaped plates. One end of the arc-shaped plate is fixedly connected to the side wall of the rocker arm, and the other end is connected to the actuating rod. The actuating rod is perpendicular to the arc-shaped plates and is disposed between the two arc-shaped plates.

[0015] Furthermore, the arc-shaped plate is circular in shape, and its center is coaxial with the rotating pin.

[0016] Furthermore, the hook includes a connecting section and a bent section. The connecting section is fixedly connected to the handle, and the bent section is connected to the end of the connecting section away from the handle. The angle between the connecting section and the bent section is less than 90°.

[0017] Furthermore, the rocker arm has a first lap groove on its side wall for one end of the torsion spring to lap, the base has a second lap groove for the other end of the torsion spring to lap, and the base has a limiting groove for limiting the rocker arm.

[0018] Furthermore, the rotating connector includes:

[0019] The connection structure that is rotatably connected to the rocker arm;

[0020] A limiting structure fixedly connected to the connecting structure;

[0021] The end of the pull rod is inserted into the connecting structure, and the rod body is inserted into and fixed in the limiting structure.

[0022] Furthermore, the rocker arm has a through-hole, and the connecting structure includes:

[0023] A connecting plate, which abuts against the upper surface of the perforated hole;

[0024] The elastic shaft plate is connected to the connecting plate and passes through the hollow hole, contacting the inner wall of the hollow hole.

[0025] The limiting flange is fixed to the lower end of the arc-shaped shaft piece and abuts against the lower end face of the hollow hole.

[0026] Furthermore, multiple elastic shaft pieces are arranged in a circular array at the lower end of the connecting plate. When the connecting structure is inserted into the hollow hole, the inner peripheral wall of the hollow hole abuts against the limiting flange, causing the multiple elastic shaft pieces to contract towards the center. After the limiting flange passes through the hollow hole, the multiple elastic shaft pieces expand outward so that the limiting flange abuts against the lower end face of the hollow hole.

[0027] Furthermore, a positioning hole is formed between the connecting plate and the elastic shaft plate for the end of the pull rod to be fitted and inserted.

[0028] Furthermore, the limiting structure is a limiting seat with a side opening fixed to the top of the connecting plate. After inserting the end of the pull rod into the connecting structure, rotating the pull rod can insert the pull rod along the side opening and fix it in the limiting seat.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By setting a rotating connector on the rocker arm, the pull rod is rotatably connected to the rocker arm. The rocker arm is driven to rotate around the pin shaft by the handle, and the pull rod is controlled to move along a predetermined trajectory to realize the pull rod type of door lock opening. Using a rigid pull rod as the transmission medium, compared with the flexible pull cable type, it can reduce energy loss, has a more solid feel and more sensitive response during operation, and the pull rod has higher structural stability, performs better in extreme temperature and humid environments, has better corrosion resistance, and thus has a longer service life.

[0031] 2. By setting a rotating bracket and a lever bracket on the rocker arm and staggering the rotating bracket and the lever bracket, when the handle is pulled, the hook on the handle drives the rocker arm to rotate around the pin shaft through the lever bracket. The reasonable layout of the rotating bracket and the lever bracket enables the lever-type transmission handle to achieve transmission by relying on a single rocker arm, which can greatly reduce the space occupied by the handle transmission.

[0032] 3. By setting the rotating connector as a connection structure and a limiting structure, it is possible to achieve a rotating connection between the pull rod and the rocker arm while ensuring the stability of the connection between the pull rod and the rocker arm. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 is a top view of an embodiment of this application.

[0035] Figure 2 is a schematic diagram of the pillow structure according to an embodiment of this application.

[0036] Figure 3 is a partial exploded view of an embodiment of this application.

[0037] Figure 4 is a schematic diagram of the structure of the base according to an embodiment of this application.

[0038] Figure 5 is a top view of the handle according to an embodiment of this application.

[0039] Figure 6 is a schematic diagram of the rocker arm according to an embodiment of this application.

[0040] Figure 7 is a structural schematic diagram of the rotating connector according to an embodiment of this application.

[0041] Reference numerals: 1. Base; 11. Limiting groove; 12. Second overlapping groove; 13. Pin seat; 2. Handle; 21. Hook; 211. Connecting section; 212. Bending section; 3. Rotating pin; 4. Rocker arm; 41. Rotating bracket; 411. Mounting plate; 412. Pin hole; 42. Actuating bracket; 421. Arc plate; 422. Actuating rod; 43. First overlapping groove; 44. Hollow hole; 45. Clearance groove; 5. Torsion spring; 6. Pull rod; 7. Rotating connector; 71. Connecting structure; 711. Connecting plate; 712. Elastic shaft piece; 713. Limiting flange; 714. Positioning hole; 72. Limiting seat; 731. Side opening; 8. Door. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0043] This application discloses a centrally mounted tie-rod type transmission rocker arm door outward opening handle. Referring to Figures 1 and 2, the centrally mounted tie-rod type transmission rocker arm door outward opening handle includes:

[0044] The base 1 is fixed inside the door 8 by bolts;

[0045] The handle 2 is rotatably mounted on the base 1 at one end and has a hook 21 at the other end;

[0046] Rotate the pivot pin 3 to fix it on the base 1;

[0047] The rocker arm 4 has a rotating bracket 41 and a moving bracket 42 on its side. The rotating bracket 41 has a pin hole 412 for the rotating pin 3 to pass through. The moving bracket 42 is offset from the rotating bracket 41. The pull hook 21 overlaps with the moving bracket 42.

[0048] The torsion spring 5 is used to drive the rocker arm 4 to return to its original position. It is sleeved on the rotating pin 3, with one end connected to the rocker arm 4 and the other end connected to the base 1.

[0049] The pull rod 6 has a rotating connector 7 between one end and the rocker arm 4, and is rotatably connected to the rocker arm 4 through the rotating connector 7. The other end is connected to the lock body of the car door 8. The connection between the pull rod 6 and the lock body of the car door 8 is a conventional technical means for those skilled in the art, and will not be elaborated here.

[0050] When the car door 8 needs to be opened, pulling the handle 2 causes the hook 21 on the handle 2 to drive the actuating bracket 42, causing the rocker arm 4 to rotate around the rotating pin 3. This, in turn, causes the pull rod 6 to slide along a predetermined trajectory. The rotating connector 7 allows the pull rod 6 to be rotatably connected to the rocker arm 4, enabling the pull rod 6 to adapt to the angle changes when the rocker arm 4 rotates, thus realizing the pull rod 6 type transmission. After releasing the handle 2, the rocker arm 4 rotates in the opposite direction under the action of the torsion spring 5, and drives the handle 2 to return to its original position through the actuating bracket 42. Compared with the flexible cable type, the rigid pull rod 6, as the transmission medium, can reduce energy loss, provide a more solid feel and more sensitive response during operation, and has higher structural stability. It also performs better in extreme temperature and humid environments, has better corrosion resistance, and thus has a longer service life.

[0051] Specifically, referring to Figure 3, the rotating bracket 41 includes two parallel mounting plates 411 extending from the side of the rocker arm 4. The two mounting plates 411 are located at the upper and lower ends of the rocker arm 4, respectively. The pin hole 412 is provided at the end of the mounting plate 411 away from the rocker arm 4. Two pin seats 13 are respectively provided at the upper and lower ends of the base 1. The rotating pin 3 is fixed vertically on the two pin seats 13. The mounting plate 411 is located between the two pin seats 13 and is sleeved on the rotating pin 3 through the pin hole 412. The two mounting plates 411 are respectively fitted with the two pin seats 13, so that when the rocker arm 4 rotates around the rotating pin 3, the pin seats 13 limit its vertical direction.

[0052] On the other hand, referring to Figures 3 and 6, the actuating bracket 42 includes an actuating rod 422 and two parallel arc-shaped plates 421, forming a U-shape. Both arc-shaped plates 421 extend from the side of the rocker arm 4. The actuating rod 422 is vertically arranged, and its two ends are welded and fixed to the two arc-shaped plates 421 respectively. The U-shaped design of the actuating bracket 42 facilitates the hook 21 to engage and pull the actuating rod 422, thereby achieving stable transmission between the handle 2 and the rocker arm 4.

[0053] Furthermore, the actuating bracket 42 and the rotating bracket 41 are offset along the axial direction of the rocker arm 4, causing the actuating rod 422 to be misaligned with the rotating pin 3. In this embodiment, the distance between the actuating rod 422 and the central axis of the rocker arm 4 is greater than the distance between the rotating pin 3 and the central axis of the rocker arm 4. By utilizing the principle of a lever that saves effort, the stress required to pull the handle 2 can be reduced when opening the car door 8.

[0054] Furthermore, the arc plate 421 is arc-shaped, and its center is coaxial with the rotating pin 3. This can reduce the space occupied while increasing the length of the arc plate 421, and can avoid the rotating pin 3, thus preventing interference between the rocker arm 4, the actuating bracket 42 and the hook and the rotating pin 3 when the rocker arm 4 rotates.

[0055] Referring to Figures 2 and 4, the rocker arm 4 has a first overlapping groove 43 on its side wall for the upper end of the torsion spring 5 to overlap, and the base 1 has a second overlapping groove 12 for the lower end of the torsion spring 5 to overlap. The groove walls of the first overlapping groove 43 and the second overlapping groove 12 provide opposing thrusts to the torsion spring 5. The base 1 has a limiting groove 11 for limiting the rocker arm 4, so that the rocker arm 4 is embedded in the limiting groove 11 under the push of the torsion spring 5, thereby limiting the rocker arm 4.

[0056] To achieve a stable connection between the hook 21 and the lever bracket 42, as shown in Figure 5, the hook 21 includes a connecting section 211 and a bent section 212. The connecting section 211 is fixedly connected to the handle 2, and the bent section 212 is fixedly connected to the end of the connecting section 211 away from the handle 2. The angle between the connecting section 211 and the bent section 212 is less than 90°.

[0057] Furthermore, referring to Figure 7, the rotating connector 7 includes a connecting structure 71 rotatably connected to the rocker arm 4 and a limiting structure fixedly connected to the connecting structure 71. The end of the pull rod 6 is designed in an L-shape. The end of the pull rod 6 is inserted into the connecting structure 71, and the rod body of the pull rod 6 passes through and is fixed in the limiting structure, allowing the pull rod 6 to be stably rotatably connected to the rocker arm 4.

[0058] Specifically, the top of the rocker arm 4 is provided with a through-hole 44, the upper surface of which is the top surface of the rocker arm 4, and the lower surface of the rocker arm 4 is provided with a clearance groove 45. The connecting structure 71 includes a connecting plate 711, an elastic shaft piece 712, and a limiting flange 713. The connecting plate 711 is a rectangular plate, the bottom surface of which abuts against the upper surface of the through-hole 44. The elastic shaft piece 712 is an arc-shaped piece, which is welded and fixed to the connecting plate 711. It passes through the through-hole 44 and contacts the inner wall of the through-hole 44. The limiting flange 713 is a cone shape, wider at the top and narrower at the bottom. The limiting flange 713 is fixed to the lower end of the arc-shaped shaft piece and abuts against the lower surface of the through-hole, so that the elastic shaft piece 712 does not detach from the through-hole 44, thereby realizing the rotational connection between the connecting structure 71 and the rocker arm 4.

[0059] Furthermore, multiple elastic shaft pieces 712 are arranged in a circular array at the lower end of the connecting plate 711. In this embodiment, two elastic shaft pieces 712 are provided. As an alternative embodiment, three or four elastic shaft pieces 712 can also be provided. When the connecting structure 71 is inserted into the hollow hole 44, the inner peripheral wall of the hollow hole 44 abuts against the limiting flange 713, causing the two elastic shaft pieces 712 to contract towards the center. After the limiting flange 713 passes through the hollow hole 44, the elastic shaft pieces 712 expand outward so that the limiting flange 713 abuts against the lower end face of the hollow hole 44, forming a limit to ensure the rotational connection between the connecting structure 71 and the rocker arm 4. The design of multiple elastic shaft pieces 712 can improve the stability of the connection. The elastic properties of the elastic shaft pieces 712, combined with the limiting flange 713, facilitate the installation and disassembly of the connecting structure 71 and the rocker arm 4.

[0060] Furthermore, a positioning hole 714 is formed between the connecting plate 711 and the two elastic shaft pieces 712 for the end of the pull rod 6 to be inserted. When the end of the pull rod 6 is inserted into the positioning hole 714, the pull rod 6 is embedded between the two elastic shaft pieces 712, keeping the elastic shaft pieces 712 in an open state, thereby preventing the elastic shaft pieces 712 from shrinking and dislodging from the positioning hole 714, further enhancing the stability of the transmission structure.

[0061] In addition, the limiting structure is a limiting seat 72 with a side opening 721 fixed to the top of the connecting plate 711. That is, the limiting seat 72 is C-shaped. After the end of the pull rod 6 is inserted into the positioning hole 714, the pull rod 6 can be rotated to place the pull rod 6 into the limiting seat 72 along the side opening 721. The side opening 721 opens under the pressure of the pull rod 6. After the pull rod 6 is placed into the limiting seat 72, the limiting seat 72 recovers its elasticity as the material of the limiting seat 72, so that the limiting seat 72 limits and wraps around the pull rod 6, thereby limiting and fixing the pull rod 6 and preventing the pull rod 6 from swinging relative to the connecting structure 71, so as to further improve the stability of the transmission structure of the pull rod 6.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A centrally mounted tie rod type transmission rocker arm door outward opening handle, characterized in that, include: A base is fixedly installed inside the car door; a handle is rotatably mounted on the base at one end and has a hook at the other end; a rotating pin is fixedly installed on the base; a rocker arm has a rotating bracket and a toggle bracket on its side, the rotating bracket has a pin hole for the rotating pin to pass through, the toggle bracket and the rotating bracket are offset along the axial direction of the rocker arm, and the hook overlaps with the toggle bracket; a torsion spring is sleeved on the rotating pin, one end overlaps with the rocker arm, and the other end overlaps with the base; a pull rod has a rotating connector between one end and the rocker arm, and is rotatably connected to the rocker arm through the rotating connector, and the other end is connected to the car door lock body; wherein, when the handle is rotated, the hook on it actuates the toggle bracket, causing the rocker arm to rotate around the rotating pin, thereby driving the pull rod to open the car door lock body, and the torsion spring is used to drive the rocker arm to return to its original position.

2. The outward-opening handle of a center-mounted tie-rod type transmission rocker arm door according to claim 1, characterized in that, The actuating bracket includes an actuating rod and two parallel arc-shaped plates. One end of the arc-shaped plate is fixedly connected to the side wall of the rocker arm, and the other end is connected to the actuating rod. The actuating rod is perpendicular to the arc-shaped plates and is positioned between the two arc-shaped plates.

3. The outward-opening handle of a center-mounted tie-rod type transmission rocker arm door according to claim 2, characterized in that, The arc-shaped plate is circular, and its center is coaxial with the rotating pin.

4. The outward-opening handle of a center-mounted tie-rod type transmission rocker arm door according to claim 3, characterized in that, The hook includes a connecting section and a bent section. The connecting section is fixedly connected to the handle, and the bent section is connected to the end of the connecting section away from the handle. The angle between the connecting section and the bent section is less than 90°.

5. A centrally mounted tie rod type transmission rocker arm door outward opening handle according to claim 1, characterized in that, The rocker arm has a first lap groove on its side wall for one end of the torsion spring to lap, the base has a second lap groove for the other end of the torsion spring to lap, and the base has a limiting groove for limiting the rocker arm.

6. The outward-opening handle of a center-mounted tie-rod type transmission rocker arm door according to claim 1, characterized in that, The rotating connector includes: a connecting structure rotatably connected to the rocker arm; and a limiting structure fixedly connected to the connecting structure; wherein the end of the pull rod is inserted into the connecting structure, and the rod body of the pull rod passes through and is fixed in the limiting structure.

7. A centrally mounted tie rod type transmission rocker arm door outward opening handle according to claim 6, characterized in that, The rocker arm has a through-hole, and the connecting structure includes: a connecting plate that abuts against the upper end face of the through-hole; an elastic shaft piece that is connected to the connecting plate and passes through the through-hole, contacting the inner wall of the through-hole; and a limiting flange that is fixed to the lower end of the arc-shaped shaft piece and abuts against the lower end face of the through-hole.

8. A centrally mounted tie rod type transmission rocker arm door outward opening handle according to claim 7, characterized in that, Multiple elastic shaft pieces are arranged in a circular array at the lower end of the connecting plate. When the connecting structure is inserted into the hollow hole, the inner peripheral wall of the hollow hole abuts against the limiting flange, causing the multiple elastic shaft pieces to contract towards the center. After the limiting flange passes through the hollow hole, the multiple elastic shaft pieces expand outward so that the limiting flange abuts against the lower end face of the hollow hole.

9. A centrally mounted tie rod type transmission rocker arm door outward opening handle according to claim 8, characterized in that, A positioning hole is formed between the connecting plate and the elastic shaft plate for the end of the pull rod to be fitted and inserted.

10. A centrally mounted tie rod type transmission rocker arm door outward opening handle according to claim 9, characterized in that, The limiting structure is a limiting seat with a side opening fixed to the top of the connecting plate. After inserting the end of the pull rod into the connecting structure, rotating the pull rod can insert the pull rod along the side opening and fix it in the limiting seat.

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