Calibrating device for angle of head tube of tricycle frame

Abstract

The utility model relates to the technical field of frame head tube angle calibration, in particular to a tricycle frame head tube angle calibration device. Comprising a supporting frame and an auxiliary device, a sliding rail is fixedly connected to the upper surface of the supporting frame, adjusting rods are slidably connected to the surfaces of the two ends of the sliding rail, a frame head tube body is fixedly connected to the surface of the middle section of the sliding rail through the auxiliary device, and adjusting devices are arranged at the positions, corresponding to the frame head tube body, of the arc faces of the upper ends of the adjusting rods; the section of the fixing rod is in a U shape, the two ends of the fixing rod are fixedly connected with the arc face of the adjusting rod, the arc face of the fixing rod is slidably connected with a sliding ring, a fixing shaft penetrates through one side of the sliding ring in a threaded mode, one end of the fixing shaft abuts against the arc face of the fixing rod, and the surface of the side, close to the frame head tube, of the sliding ring is fixedly connected with a connecting plate. The calibration device for the angle of the head tube of the tricycle frame has the advantage that the head tube of the tricycle frame can be conveniently calibrated and protected.

Description

Technical Field

[0001] This utility model relates to the field of calibration technology for the head tube angle of a vehicle frame, and in particular to a calibration device for the head tube angle of a tricycle frame. Background Technology

[0002] The head tube angle of a tricycle frame is one of the important factors affecting the vehicle's handling and stability. The head tube angle usually refers to the angle between the head tube and the ground. This angle directly affects the handling of the vehicle's front fork and the geometric relationship between the tire and the ground. This angle can be tested and operated using frame calibration equipment, which is quite common in tricycle frame manufacturing.

[0003] Existing technologies, such as the utility model with publication number CN222496499U, disclose an electric vehicle frame calibration frame. This patent includes a calibration frame, one end of which is equipped with a translation motor. One end of the translation motor is connected to a bidirectional threaded rod. Moving frames are symmetrically mounted on the outer side of the bidirectional threaded rod, and two first marking blocks are connected to the sides of the two moving frames. This utility model uses the translation motor to electrically drive the bidirectional threaded rod to rotate. The bidirectional threaded rod drives the two moving frames to move synchronously towards each other, thereby moving the first marking blocks to the outer side of the length measuring ruler. This facilitates the measurement of the frame length during movement. Simultaneously, a pneumatic telescopic rod extends and retracts, pushing the moving blocks within a groove, which facilitates the movement of a second marking block to the outer side of the width measuring ruler, thus facilitating the measurement of the frame width. This eliminates the need for manual measurement, reducing labor and time costs.

[0004] During the production of tricycle frames, it was discovered that the head tube angle of the tricycle frame directly affects the geometry of the front fork, thus impacting the tricycle's handling performance. If the head tube angle is not properly calibrated, it will result in either unresponsive or overly responsive steering of the front wheel, leading to issues with the comfort and safety of riding the tricycle. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the head tube angle of a tricycle frame directly affecting the geometric design of the front fork, thus impacting the tricycle's handling performance. Incorrectly calibrated head tube angle can lead to either insensitive or overly sensitive steering response of the front wheel, thereby compromising the comfort and safety of tricycle riding.

[0006] To solve the above-mentioned technical problems, this utility model provides a calibration device for the head tube angle of a tricycle frame, comprising: a support frame and an auxiliary device. A slide rail is fixedly connected to the upper surface of the support frame. Adjusting rods are slidably connected to both ends of the slide rail. The head tube body is fixedly connected to the middle section of the slide rail via the auxiliary device. An adjusting device is provided at the position corresponding to the upper arc surface of the adjusting rod and the head tube body. The adjusting device includes a fixed rod with a U-shaped cross-section. Both ends of the fixed rod are fixedly connected to the arc surface of the adjusting rod. A sliding ring is slidably connected to the arc surface of the fixed rod. A fixed shaft is threaded through one side of the sliding ring, and one end of the fixed shaft abuts against the arc surface of the fixed rod. The sliding ring is located near the head tube of the tricycle frame. A connecting plate is fixedly connected to one side of the slide, and an adjusting plate is fixedly connected to one end of the connecting plate. A sliding frame is slidably connected to the inner wall of the adjusting plate. A limiting rod slides through one side of the sliding frame. A top block is fixedly connected to the upper end of the limiting rod. A connecting ring is fixedly connected to the upper arc surface of the limiting rod. A spring is fitted onto the arc surface of the limiting rod. The two ends of the spring are fixedly connected to the connecting ring and the sliding frame, respectively. A moving plate is fixedly connected to the bottom end of the limiting rod. An auxiliary frame is fixedly connected to one side of the bottom end of the sliding frame. The upper surface of the auxiliary frame is slidably inserted into the surface of the moving plate. Scale plates are fixedly connected to both sides of the surface of the auxiliary frame. An indicator block is fixedly connected to the bottom surface of the moving plate. The surface of the indicator block is slidably connected to the surface of the scale plate.

[0007] The effect achieved by the above components is as follows: during the angle calibration of the tricycle frame head tube, the adjustment device set on the surface of the support frame can be used for operation. The sliding frame inside the adjustment plate drives the limit rod and the moving plate to slide along the arc surface of the frame head tube body. The squeezing force generated by the spring is used to squeeze and adjust the angle of the frame head tube body. It is convenient to use the scale plate and indicator block fixed on the surface of the auxiliary frame to make the calibration observation intuitive.

[0008] Preferably, the top block has a pointed conical cross-section, is a hard alloy block, and its upper surface abuts against the arc surface of the frame head tube body.

[0009] The effect achieved by the above components is that the top block made of hard alloy can be used for a long time and prevents the top block from deforming during sliding use.

[0010] Preferably, the side wall surface of the adjusting plate is provided with a sliding groove, and a sliding rod is slidably connected to the inner wall of the sliding groove. One end of the sliding rod is fixedly connected to the side wall surface of the sliding frame.

[0011] The effect achieved by the above components is that, with the help of the combination of the slide rail and the slide rod, the position of the entire slide frame can be easily adjusted by using the slide rod.

[0012] Preferably, the cross-section of the indicator block is arrow-shaped, and the length of the indicator block is adapted to the cross-sectional dimensions of the auxiliary frame.

[0013] The effect achieved by the above components is that the indicator block with an arrow-shaped cross-section can be used for quick indication operations.

[0014] Preferably, the auxiliary device is disposed on the surface of the middle section of the slide rail. The auxiliary device includes a connecting block, the surface of which is slidably connected to the inner wall surface of the slide rail. Several inlaid posts of different diameters are fixedly connected to the surface of the connecting block. Auxiliary grooves are provided on the surface of the slide rail corresponding to both sides of the connecting block. A connecting plate is fixedly connected to the bottom surface of the inner wall of the auxiliary groove. A rotating shaft is threaded through the surface of the connecting plate. A positioning block is rotatably connected to one end of the rotating shaft near the connecting block. Several positioning holes are provided on the side wall surface of the connecting block, and the inner wall of one of the positioning holes is inserted into the surface of the positioning block.

[0015] The aforementioned components achieve the following effects: during the angle calibration of the head tube body, the auxiliary device can be used to fix and limit the position of different sizes of head tube bodies, the connecting block that slides and adjusts with the inner wall of the slide rail can be used for support, and the insert pins of different diameters can be inserted and fixed to the head tube body, which helps to further calibrate the angle of the head tube body.

[0016] Preferably, a guide rod slides through the surface of the connecting plate, and one end of the guide rod is fixedly connected to the surface of the positioning block.

[0017] The effect achieved by the above components is that the guide rod can effectively guide and protect the position of the positioning block, preventing the positioning block from shifting when it moves.

[0018] Preferably, a guide plate is fixedly connected to the lower surface of the connecting block. The guide plate has an inverted "T" shaped cross-section, and the surface of the guide plate is slidably connected to the inner wall surface of the slide rail.

[0019] The effect achieved by the above components is that the guide plate with an inverted "T" shaped cross section can effectively protect the connecting block and prevent the connecting block from sliding and being lifted.

[0020] Compared with related technologies, the calibration device for the head tube angle of a tricycle frame provided by this utility model has the following advantages:

[0021] This utility model provides a calibration device for the head tube angle of a tricycle frame. By operating the adjustment device, the angle of the head tube body can be calibrated. With the help of the adjustment plate set on the arc surface of the adjustment rod, the sliding frame that slides on the inner wall of the adjustment plate drives the limit rod and the position of the moving plate to be adjusted. At the same time, the upper end of the sliding rod slides with the arc surface of the head tube. When there is a deviation in the head tube angle, it can be accurately displayed by the scale plate fixed on the surface of the auxiliary frame.

[0022] By operating the auxiliary device, the position of the head tube of different sizes can be fixed and limited. The head tube is positioned by a connecting block that slides on the middle surface of the slide rail and by several inlaid posts of different sizes fixed on the surface of the connecting block. Then, the positioning holes on both sides of the connecting block are inserted and fixed to the positioning block, which facilitates the calibration of the angle of the head tube. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a calibration device for the head tube angle of a tricycle frame provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structure of the regulating device.

[0025] Figure 3 for Figure 1 The enlarged structural diagram at point A is shown below;

[0026] Figure 4 for Figure 1 The diagram shows the structure of the auxiliary device.

[0027] The following are the labeling elements in the diagram: 1. Support frame; 2. Slide rail; 3. Frame head tube body; 4. Adjustment device; 401. Fixed rod; 402. Sliding ring; 403. Fixed shaft; 404. Connecting plate; 405. Adjusting plate; 406. Slide frame; 407. Limiting rod; 408. Spring; 409. Top block; 410. Auxiliary frame; 411. Scale plate; 412. Indicator block; 413. Moving plate; 414. Slide groove; 415. Slide rod; 416. Connecting ring; 5. Auxiliary device; 51. Connecting block; 52. Guide plate; 53. Inlaid column; 54. Auxiliary groove; 55. Rotating shaft; 56. Positioning block; 57. Positioning hole; 58. Connecting plate; 59. Guide rod; 6. Adjusting rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1 to 4 This utility model provides a calibration device for the head tube angle of a tricycle frame, comprising: a support frame 1 and an auxiliary device 5. A slide rail 2 is fixedly connected to the upper surface of the support frame 1. Adjusting rods 6 are slidably connected to both ends of the slide rail 2. The head tube body 3 of the frame is fixedly connected to the middle section of the slide rail 2 with the aid of the auxiliary device 5. An adjusting device 4 is provided on the upper arc surface of the adjusting rod 6 corresponding to the position of the head tube body 3. The auxiliary device 5 is provided on the middle section surface of the slide rail 2.

[0031] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The adjusting device 4 includes a fixed rod 401 with a U-shaped cross-section. Both ends of the fixed rod 401 are fixedly connected to the arc surface of the adjusting rod 6. A sliding ring 402 is slidably connected to the arc surface of the fixed rod 401. A fixed shaft 403 is threaded through one side of the sliding ring 402. One end of the fixed shaft 403 abuts against the arc surface of the fixed rod 401. A connecting plate 404 is fixedly connected to the side surface of the sliding ring 402 near the head tube of the frame. An adjusting plate 405 is fixedly connected to one end of a connecting plate 404. A sliding frame 406 is slidably connected to the inner wall of the adjusting plate 405. A limit rod 407 slides through one side surface of the sliding frame 406. A top block 409 is fixedly connected to the upper end of the limit rod 407. A connecting ring 416 is fixedly connected to the upper arc surface of the limit rod 407. A spring 408 is sleeved on the arc surface of the limit rod 407. The two ends of the spring 408 are respectively fixed to the connecting ring 416 and the sliding frame 406. The bottom end of the limiting rod 407 is fixedly connected to a movable plate 413. The bottom side of the sliding frame 406 is fixedly connected to an auxiliary frame 410. The upper surface of the auxiliary frame 410 is slidably inserted into the surface of the movable plate 413. The two sides of the surface of the auxiliary frame 410 are fixedly connected to scale plates 411. The bottom surface of the movable plate 413 is fixedly connected to an indicator block 412. The surface of the indicator block 412 is slidably connected to the surface of the scale plate 411. The top block 409 has a pointed cone-shaped cross section and is made of hard alloy. The upper surface of the top block 409 abuts against the arc surface of the frame head tube body 3. The side wall surface of the adjusting plate 405 is provided with a sliding groove 414. The inner wall of the sliding groove 414 is slidably connected to a sliding rod 415. One end of the sliding rod 415 is fixedly connected to the side wall surface of the sliding frame 406. The cross section of the indicator block 412 is arrow-shaped. The length of the indicator block 412 is adapted to the cross section of the auxiliary frame 410.

[0032] In the embodiments of this utility model, please refer to Figure 4The auxiliary device 5 includes a connecting block 51, the surface of which is slidably connected to the inner wall surface of the slide rail 2. Several inlaid posts 53 of different diameters are fixedly connected to the surface of the connecting block 51. Auxiliary grooves 54 are provided on the surface of the slide rail 2 at positions corresponding to both sides of the connecting block 51. A connecting plate 58 is fixedly connected to the bottom surface of the inner wall of the auxiliary groove 54. A rotating shaft 55 is threaded through the surface of the connecting plate 58. A positioning block 56 is rotatably connected to one end of the rotating shaft 55 near the connecting block 51. Several positioning holes 57 are provided on the side wall surface of the connecting block 51. The inner wall of one of the positioning holes 57 is inserted into the surface of the positioning block 56. A guide rod 59 is slidably connected through the surface of the connecting plate 58. One end of the guide rod 59 is fixedly connected to the surface of the positioning block 56. A guide plate 52 is fixedly connected to the lower surface of the connecting block 51. The cross-section of the guide plate 52 is inverted "T" shaped. The surface of the guide plate 52 is slidably connected to the inner wall surface of the slide rail 2.

[0033] The working principle of the tricycle frame head tube angle calibration device provided by this utility model is as follows: In the process of calibrating the angle of the tricycle frame head tube, the position of the frame head tube body 3 needs to be fixed and limited first. At this time, the frame head tube body 3 is first inserted into the inlaid post 53 on the surface of the connecting block 51 in the auxiliary device 5. When inserting, it is necessary to select according to the cross-sectional size of the frame head tube body 3. After inserting the frame head tube body 3, the position of the entire connecting block 51 is fixed. The connecting block 51 is pulled and slid along the surface of the slide rail 2 with the help of the guide plate 52 fixed at the bottom, so that the entire frame head tube body 3 is in the middle position of the slide rail 2. Then, the rotating shaft 55 in the auxiliary groove 54 on both sides of the slide rail 2 is rotated, so that the rotating shaft 55 drives the positioning block 56 to move until the positioning block 56 is aligned and fixed with the positioning hole 57 opened on the side wall surface of the connecting block 51. At this time, the position of the entire connecting block 51 will not be offset. Next, the angle of the head tube body 3 of the frame is calibrated. At this time, the connecting plate 404 on the arc surface of the fixed rod 401 on one side of the adjusting rod 6 is pulled, so that the connecting plate 404 drives the position of the adjusting plate 405 to move until the position of the adjusting plate 405 corresponds to the upper position of the head tube body 3 of the frame. Then, the sliding frame 406 that slides on the inner wall of the adjusting plate 405 is pulled, so that the sliding frame 406 drives the limiting rod 407 to slide along the upper surface of the head tube body 3 of the frame with the squeezing force generated by the spring 408. When the angle of the head tube body 3 of the frame deviates, the limiting rod 407 and the moving plate 413 fixed at the bottom end will move up and down. At the same time, the indicator block 412 fixed on the surface of the moving plate 413 will slide along the scale plate 411 on the surface of the auxiliary frame 410. At this time, the sliding combination between the scale plate 411 and the indicator block 412 can quickly and intuitively show whether the angle of the head tube body 3 of the frame has deviated.

[0034] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A calibration device for the head tube angle of a tricycle frame, characterized in that, include: The support frame (1) and auxiliary device (5) are provided. A slide rail (2) is fixedly connected to the upper surface of the support frame (1). An adjusting rod (6) is slidably connected to both ends of the slide rail (2). A frame head tube body (3) is fixedly connected to the middle section of the slide rail (2) with the aid of the auxiliary device (5). An adjusting device (4) is provided on the upper arc surface of the adjusting rod (6) corresponding to the position of the frame head tube body (3). The adjusting device (4) includes a fixing rod (401). The cross section of the fixing rod (401) is U-shaped. The fixed rod (401) is fixedly connected to the arc surface of the adjusting rod (6) at both ends. A sliding ring (402) is slidably connected to the arc surface of the fixed rod (401). A fixed shaft (403) is threaded through one side of the sliding ring (402). One end of the fixed shaft (403) abuts against the arc surface of the fixed rod (401). A connecting plate (404) is fixedly connected to the side surface of the sliding ring (402) near the head tube of the frame. An adjusting plate (404) is fixedly connected to one end of the connecting plate (404). 05), a sliding frame (406) is slidably connected to the inner wall of the adjusting plate (405). A limiting rod (407) slides through one side surface of the sliding frame (406). A top block (409) is fixedly connected to the upper end of the limiting rod (407). A connecting ring (416) is fixedly connected to the arc surface of the upper end of the limiting rod (407). A spring (408) is sleeved on the arc surface of the limiting rod (407). The two ends of the spring (408) are fixedly connected to the connecting ring (416) and the sliding frame (406) respectively. A movable plate (413) is fixedly connected to the bottom end of the limiting rod (407), and an auxiliary frame (410) is fixedly connected to one side of the bottom end of the sliding frame (406). The upper surface of the auxiliary frame (410) is slidably inserted into the surface of the movable plate (413). A scale plate (411) is fixedly connected to both sides of the surface of the auxiliary frame (410). An indicator block (412) is fixedly connected to the bottom surface of the movable plate (413), and the surface of the indicator block (412) is slidably connected to the surface of the scale plate (411).

2. The calibration device for the head tube angle of a tricycle frame according to claim 1, characterized in that, The top block (409) has a pointed cone-shaped cross section. The top block (409) is a hard alloy block. The upper surface of the top block (409) abuts against the arc surface of the frame head tube body (3).

3. The calibration device for the head tube angle of a tricycle frame according to claim 1, characterized in that, The side wall surface of the adjusting plate (405) is provided with a sliding groove (414), and a sliding rod (415) is slidably connected to the inner wall of the sliding groove (414). One end of the sliding rod (415) is fixedly connected to the side wall surface of the sliding frame (406).

4. The calibration device for the head tube angle of a tricycle frame according to claim 1, characterized in that, The cross-section of the indicator block (412) is arrow-shaped, and the length of the indicator block (412) is adapted to the cross-sectional dimensions of the auxiliary frame (410).

5. The calibration device for the head tube angle of a tricycle frame according to claim 1, characterized in that, The auxiliary device (5) is set on the middle section surface of the slide rail (2). The auxiliary device (5) includes a connecting block (51). The surface of the connecting block (51) is slidably connected to the inner wall surface of the slide rail (2). Several inlaid posts (53) of different diameters are fixedly connected to the surface of the connecting block (51). The slide rail (2) is provided with auxiliary grooves (54) on both sides of the connecting block (51). The bottom surface of the inner wall of the auxiliary groove (54) is fixedly connected to a connecting plate (58). A rotating shaft (55) is threaded through the surface of the connecting plate (58). A positioning block (56) is rotatably connected to one end of the rotating shaft (55) near the connecting block (51). Several positioning holes (57) are provided on the side wall surface of the connecting block (51). The inner wall of one of the positioning holes (57) is inserted into the surface of the positioning block (56).

6. The calibration device for the head tube angle of a tricycle frame according to claim 5, characterized in that, A guide rod (59) slides through the surface of the connecting plate (58), and one end of the guide rod (59) is fixedly connected to the surface of the positioning block (56).

7. A calibration device for the head tube angle of a tricycle frame according to claim 5, characterized in that, The lower surface of the connecting block (51) is fixedly connected to a guide plate (52), the cross section of the guide plate (52) is inverted "T" shape, and the surface of the guide plate (52) is slidably connected to the inner wall surface of the slide rail (2).

Images