Novel adjustable upper cross arm

Abstract

The utility model discloses a novel adjustable upper cross arm, and belongs to the related technical field of electric passenger vehicles. Comprising a right front connecting rod, a right rear connecting rod, a left front connecting rod, a left rear connecting rod, a reinforcing plate, a reinforcing rod, a guide device, a guide rod, a guide block, a stop nut, a spring, an adjusting device, a telescopic adjusting rod, a shaft sleeve, an adjusting rod, a first clamping plate, a fastening bolt, a matching part, a second clamping plate and an adapter. The use is simpler and more convenient; the clamping plate connected with the reinforcing rod in a clamping mode is a second clamping plate, the section of the second clamping plate is of a u-shaped structure, the telescopic adjusting rod is connected with one side of the second clamping plate, the adjusting device and the body of the upper cross arm are integrally designed in a split mode, and finally it is guaranteed that later installation and adjusting work of the adjusting device can be conducted more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field related to electric passenger vehicles, in particular to a novel adjustable upper cross arm. Background Art

[0002] In recent years, the country has vigorously promoted green and low-carbon scientific and technological innovation and encouraged green and low-carbon circular development, so green and environmentally friendly electric passenger cars have developed rapidly. At present, the double wishbone independent suspension of electric passenger cars is generally composed of an upper wishbone, a lower wishbone and a shock absorber. Usually, the upper wishbone and the lower wishbone adopt a V-shaped rigid structure and the two rubber sleeves are coaxial. After long-term use, the camber angle of the tire changes slightly, resulting in accelerated tire wear. Therefore, in some cases, the camber angle of the vehicle needs to be adjusted. Since the screw adjustment mechanism used to connect the two front links and the two rear links is provided with two (the first adjustment screw and the second adjustment screw), and because a reinforcing rod is provided between the two rear links, when adjusting the length of the ball head, the two adjustment screws must be adjusted at the same time, or the two adjustment screws are staggered and adjusted in small increments in sequence, that is, the two adjustment screws need to be adjusted alternately for many times, making the adjustment of the length of the ball head difficult to carry out.

[0003] The existing adjustable upper cross arm of an electric passenger car (publication number: CN219667900U) generally has the following problems during use:

[0004] 1. When adjusting the length of the ball head, the two adjusting screws must be adjusted at the same time, or the two adjusting screws must be staggered and adjusted in small increments in sequence, that is, the two adjusting screws must be adjusted alternately for multiple times, making it difficult to adjust the length of the ball head: Asymmetric adjustment: If the adjustment amounts of the two adjusting screws are inconsistent, the length of the ball head may be uneven, resulting in unstable installation or uncomfortable use. Difficult adjustment: Alternating the adjustment of the two adjusting screws may increase the complexity and difficulty of the adjustment, requiring more operating time and precision. Adjustment error: If the adjustment is not precise, the length of the ball head may not meet the required precise requirements, affecting its function and performance. Damaged parts: Excessive adjustment or incorrect adjustment methods may cause damage to the adjusting screws or other parts, affecting the stability and durability of the entire structure, so there is an urgent need for an adjustable upper cross arm that is easy to adjust the ball head.

[0005] 2. It is inconvenient to install and adjust its structure: Difficult installation: If the structural design is complex or the installation steps are cumbersome, it may increase the time and difficulty of installation, and even require additional professional tools or personnel to help. Instability: If the installation is not firm or the adjustment is not in place, the adjustable upper cross arm may shake or loosen, affecting the use effect and may cause safety hazards. Limited function: If the adjustment mechanism is not flexible or the operation is inconvenient, it may limit the function of the adjustable upper cross arm and affect its scope of application and effect. Uncomfortable use: If the installation or adjustment is improper, it may cause the upper cross arm to contact the body uncomfortably or at an inappropriate angle, affecting the user's comfort and experience. Damaged parts: If excessive force or incorrect operation is applied during the installation or adjustment process, the parts of the adjustable upper cross arm may be damaged, reducing its durability and life, so there is an urgent need for an adjustable upper cross arm that is easy to install and adjust. Utility Model Content

[0006] A novel adjustable upper cross arm comprises a right front connecting rod, a right rear connecting rod, a left front connecting rod, a left rear connecting rod, a reinforcing plate, a reinforcing rod, a guiding device, a guiding rod, a guiding block, a stop nut, a spring, an adjusting device, a telescopic adjusting rod, a shaft sleeve, an adjusting rod, a first clamping plate, a fastening bolt, a matching piece, a second clamping plate, and an adapter seat;

[0007] It comprises a front link and a rear link, wherein the front link comprises a left front link and a right front link, and the rear link comprises a left rear link and a right rear link, wherein the left rear link and the right rear link are arranged in parallel and a reinforcing rod is connected between the middle parts, one end of the left front link and the right front link is connected to the ball head assembly, and the other end is parallel and respectively connected to the left rear link and the right rear link, a reinforcing plate is arranged between the ends of the right front link and the left front link connected to the ball head assembly, the right front link is connected to a guide device, and the other end of the guide device is connected to the right rear link, the left front link is connected to the left rear link through the guide device, and an adjusting device is arranged between the reinforcing plate and the reinforcing rod;

[0008] The guide device comprises a guide rod, both ends of which are respectively connected to the right front connecting rod, the left front connecting rod, the right rear connecting rod and the left rear connecting rod in telescopic sliding connection;

[0009] The adjusting device comprises a telescopic adjusting rod, both ends of which are respectively clamped and fixed with the reinforcing plate and the reinforcing rod through clamping plates, a first clamping plate is arranged between the telescopic adjusting rod and the reinforcing plate for fixing, and a fastening bolt is arranged in the middle of the first clamping plate;

[0010] The reinforcing rod is snap-connected to the mating piece, the mating piece body is a second clamping plate, a transfer seat is provided on the side of the second clamping plate, the second clamping plate is connected to the telescopic adjustment rod through the transfer seat, the cross-section of the second clamping plate is a U-shaped structure, and the reinforcing rod is snap-connected in the U-shaped structure of the second clamping plate.

[0011] Furthermore, the right front connecting rod and the right rear connecting rod are provided with sliding openings at their ends close to each other; the two ends of the guide rod are matched with the sliding openings through guide blocks;

[0012] The guide device also includes a stop nut which is spirally arranged on one end of the front connecting rod and the rear connecting rod close to each other and can prevent the guide block from escaping from the sliding port.

[0013] Furthermore, a spring is provided in the sliding mouth, and two ends of the spring are respectively pressed against the inner end of the sliding mouth and the guide block.

[0014] Furthermore, the telescopic adjustment rod includes a sleeve with one end rotatably connected to one of the clamping plates, and an adjustment rod with an inner end spirally arranged in the sleeve, and an outer end of the adjustment rod is fixedly connected to the other clamping plate.

[0015] Furthermore, the shaft sleeve comprises a cylindrical main body, and a hexagonal screw-on portion is coaxially provided on the outer ring of the main body.

[0016] Furthermore, the shaft sleeve is integrally formed.

[0017] The utility model has the following beneficial effects:

[0018] 1. Under the action of the guide device, the length of the ball head can be adjusted only by adjusting the telescopic adjustment rod, which is easier and more convenient to use and brings the following advantages: Simple and convenient: No additional tools or complicated operating steps are required. The length of the ball head can be adjusted by adjusting the telescopic adjustment rod, which is easier and more convenient to use. Quick adjustment: Since the adjustment process is simple and direct, the length of the ball head can be adjusted quickly, saving time and energy. Flexibility: Users can adjust the length of the ball head at any time according to their needs to meet different usage scenarios and personal preferences, which improves the flexibility and applicability of the product. Easy to master: No complex operating skills or professional knowledge are required. Even first-time users can easily master how to adjust, reducing the learning cost. Reduce parts: Compared with other adjustment methods, the use of telescopic adjustment rods can reduce the number and complexity of parts, and reduce the risk of failure and damage.

[0019] 2. Through the telescopic adjustment rod and the setting of the clamping plates at both ends, the adjustment device and the body of the upper cross arm are designed as a split type, which ultimately ensures that the later installation and adjustment of the adjustment device can be carried out more conveniently and brings the following advantages: Symmetrical adjustment: Ensure that the adjustment amount of the two adjustment screws is consistent to keep the length of the ball head uniform, ensure stable installation and comfortable use. Simplified adjustment: If possible, try to use one adjustment method to simplify the operation and reduce the adjustment time. Precise adjustment: Ensure that the adjustment operation is accurate to ensure that the length of the ball head can meet the required precise requirements to give full play to the function and performance. Careful operation: Avoid over-adjustment or incorrect adjustment methods to prevent damage to the adjustment screw or other parts, affecting the stability and durability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the upper cross arm in the embodiment;

[0021] Figure 2 This is a schematic diagram of the arrangement of the guide device in the embodiment;

[0022] Figure 3 A schematic diagram of the arrangement of the adjusting device in the embodiment;

[0023] In the figure: 1, right front connecting rod; 2, right rear connecting rod; 3, left front connecting rod; 4, left rear connecting rod; 5, reinforcement plate; 6, reinforcement rod; 7, guide device; 71, guide rod; 72, guide block; 73, stop nut; 74, spring; 8, adjustment device; 81, telescopic adjustment rod; 811, bushing; 812, adjustment rod; 82, first clamping plate; 83, fastening bolt; 84, fitting; 841, second clamping plate; 842, adapter. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, this is all.

[0027] Example

[0028] See also Figure 1-3 , the utility model provides a technical solution:

[0029] It includes a front link and a rear link, wherein the front link includes a left front link 3 and a right front link 1, and the rear link includes a left rear link 4 and a right rear link 2, wherein the left rear link 4 and the right rear link 2 are arranged in parallel and a reinforcing rod 6 is connected between the middle parts, one end of the left front link 3 and the right front link 1 is connected to the ball head assembly, and the other end is parallel and connected to the left rear link 4 and the right rear link 2 respectively, a reinforcing plate 5 is provided between the ends of the right front link 1 and the left front link 3 connected to the external ball head assembly, the right front link 1 is connected to a guide device 7, and the other end of the guide device 7 is connected to the right rear link 2, the left front link 3 is connected to the left rear link 4 through a guide device 7, and an adjustment device 8 is provided between the reinforcement plate 5 and the reinforcement rod 6; the guide device 7 includes a guide rod 71, and its two ends are respectively connected to the right front link 1, the left front link 3 and the right rear link 2, and the left rear link 4 in a telescopic and sliding manner; the adjustment device 8 includes a telescopic adjustment rod 81, and the two ends of the telescopic adjustment rod 81 are respectively clamped and fixed with the reinforcement plate 5 and the reinforcement rod 6 through a clamping plate, and a first clamping plate 82 is provided between the telescopic adjustment rod 81 and the reinforcement plate 5 for fixing, and a fastening bolt 83 is provided in the middle of the first clamping plate 82 The reinforcing rod 6 is connected to the fitting piece 84 by snapping, and the fitting piece 84 is mainly composed of a second card plate 841, and a transfer seat 842 is arranged on the side of the second card plate 841, and the second card plate 841 is connected to the telescopic adjustment rod 81 through the transfer seat 842, and the cross section of the second card plate 841 is a U-shaped structure, and the reinforcing rod 6 is connected to the U-shaped structure of the second card plate 841 by snapping, and the ends of the right front connecting rod 1 and the right rear connecting rod 2 close to each other are provided with a sliding opening, and the two ends of the guide rod 71 are matched with the sliding opening through the guide block 72, and the guide device 7 also includes a spiral arranged on the front connecting rod and the rear connecting rod. The connecting rods are close to one end of each other and can prevent the guide block 72 from escaping from the stop nut 73 of the slide. A spring 74 is also provided in the slide. The two ends of the spring 74 are respectively pressed against the inner end of the slide and the guide block 72. The telescopic adjustment rod 81 includes a sleeve 811 rotatably connected to one of the clamping plates at one end, and an adjustment rod 812 spirally arranged in the sleeve 811 at the inner end. The outer end of the adjustment rod 812 is fixedly connected to the other clamping plate. The sleeve 811 includes a cylindrical main body. The outer ring of the main body is coaxially provided with a hexagonal screw-on portion, and the sleeve 811 is integrally formed.

[0030] As the core technical concept of the present invention, the front link and the rear link are connected by a guide device 7, and the guide device 7 can ensure the coaxial relationship between the front link close to one end of the rear link and the rear link close to it. An adjustment device 8 is provided between the reinforcing plate 5 and the reinforcing rod 6, and the adjustment device 8 can complete the distance adjustment work between the front link and the rear link, and then complete the adjustment work of the ball head length. The structure of the upper cross arm (the above-mentioned new adjustable upper cross arm) is described in detail below.

[0031] In this embodiment, combined with Figure 2 As for the structure of the guide device 7, it includes a guide rod 71, whose two ends are respectively connected to the front link and the rear link in a telescopic and sliding manner, that is, the left front link 3 and the left rear link 4, and the right front link 1 and the right rear link 2 are all connected through the guide rod 71. Under the action of the guide rod 71, a good coaxial relationship can be maintained between one end of the front link close to the rear link and the rear link close to it.

[0032] Further speaking of the connection method between the guide rod 71 and the front connecting rod and the rear connecting rod, a sliding mouth is provided in the middle part of one end of the front connecting rod and the rear connecting rod close to each other, and both ends of the guide rod 71 are provided with a columnar guide block 72 with an outer diameter larger than the outer diameter of the guide rod 71, and the guide block 72 is slidably matched with the sliding mouth, and the guide device 7 also includes a stop nut 73 which is spirally arranged on one end of the front connecting rod and the rear connecting rod close to each other and can prevent the guide block 72 from escaping from the sliding mouth.

[0033] Specifically, one end of the stop nut 73 is rotatably connected to the end of the connecting rod, and the inner ring of the other end is a stop ring structure whose inner diameter matches the outer diameter of the guide rod 71 .

[0034] As a preferred embodiment, a spring 74 is further provided in the slide, and its two ends are respectively pressed against the inner end of the slide and the guide block 72 to prevent the guide rod 71 from having a large axial deviation during or after the adjustment, thereby ensuring the guiding effect of the guide device 7.

[0035] In this embodiment, combined with Figure 3 The adjusting device 8 includes a telescopic adjusting rod 81, both ends of which are respectively fixed to the reinforcing plate 5 and the reinforcing rod 6 through clamping plates. Through the cooperation of the guiding device 7 and the adjusting device 8, the upper cross arm can adjust the length of the ball head only by adjusting the telescopic adjusting rod 81, which is simpler and more convenient to use.

[0036] As for the fixing method between the telescopic adjustment rod 81 and the reinforcing plate 5, the clamping plate connected to the reinforcing plate 5 is a first clamping plate 82, one side of which is connected to the telescopic adjustment rod 81, and the other end is provided with a clamping groove adapted to the reinforcing plate, and the first clamping plate 82 is also provided with a fastening bolt 83 capable of tightening the reinforcing plate 5 inside the clamping groove.

[0037] As for the fixing method between the telescopic adjustment rod 81 and the reinforcement rod 6, the telescopic adjustment rod 81 and the reinforcement rod 6 are clamped together by a matching piece 84, and the matching piece 84 includes a second clamping plate 841 clamped together with the reinforcement rod 6, and its cross-section is a U-shaped structure, and the telescopic adjustment rod 81 is connected to one side of the second clamping plate 841 so that the clamping interface direction of the second clamping plate 841 is perpendicular to the axis of the telescopic rod. Through this arrangement, the adjustment device 8 and the main body of the upper cross arm are designed to be split, which ultimately ensures that the subsequent installation and adjustment of the adjustment device 8 can be carried out more conveniently.

[0038] In this embodiment, combined with Figure 3 Specifically speaking, with regard to the structure of the telescopic adjustment rod 81, the matching piece 84 also includes a transfer seat 842 arranged at the connection position between the second clamping plate 841 and the telescopic adjustment rod 81, and the telescopic adjustment rod 81 includes a sleeve 811 with one end rotatably connected to the transfer seat 842 on one side of the second clamping plate 841, and an adjustment rod 812 with an inner end spirally arranged inside the end of the sleeve 811 away from the transfer seat 842, and the outer end of the adjustment rod 812 is fixedly connected to the first clamping plate 82, and the length adjustment work of the telescopic adjustment rod 81 can be completed by rotating the sleeve 811.

[0039] In order to facilitate the length adjustment of the telescopic adjustment rod 81, the shaft sleeve 811 is configured to include a cylindrical main body, and a hexagonal prism-shaped screw-on portion is coaxially disposed on the outer ring of the main body.

[0040] As a preferred implementation, in order to ensure the overall structural strength of the telescopic adjustment rod 81 and the telescopic adjustment effect, the screw-on portion is integrally formed with the main body.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel adjustable upper cross arm, including a front link and a rear link, characterized in that: The front connecting rod comprises a left front connecting rod (3) and a right front connecting rod (1); the rear connecting rod comprises a left rear connecting rod (4) and a right rear connecting rod (2); the left rear connecting rod (4) and the right rear connecting rod (2) are arranged in parallel and a reinforcing rod (6) is connected between the middle parts; one end of the left front connecting rod (3) and the right front connecting rod (1) is connected to the ball head assembly, and the other ends are parallel and respectively connected to the left rear connecting rod (4) and the right rear connecting rod (2); a reinforcing plate (5) is provided between the ends of the right front connecting rod (1) and the left front connecting rod (3) connected to the ball head assembly; the right front connecting rod (1) is connected to a guide device (7); the other end of the guide device (7) is connected to the right rear connecting rod (2); the left front connecting rod (3) is connected to the left rear connecting rod (4) via the guide device (7); an adjusting device (8) is provided between the reinforcing plate (5) and the reinforcing rod (6); The guide device (7) comprises a guide rod (71), both ends of which are respectively connected to the right front connecting rod (1), the left front connecting rod (3) and the right rear connecting rod (2), and the left rear connecting rod (4) in a telescopic and sliding manner; The adjusting device (8) comprises a telescopic adjusting rod (81), two ends of the telescopic adjusting rod (81) are respectively clamped and fixed to the reinforcing plate (5) and the reinforcing rod (6) through clamping plates, a first clamping plate (82) is arranged between the telescopic adjusting rod (81) and the reinforcing plate (5) for fixing, and a fastening bolt (83) is arranged in the middle of the first clamping plate (82); The reinforcing rod (6) is snap-connected to the matching piece (84); the matching piece (84) is mainly a second clamping plate (841); a transfer seat (842) is provided on the side of the second clamping plate (841); the second clamping plate (841) is connected to the telescopic adjustment rod (81) via the transfer seat (842); the cross section of the second clamping plate (841) is a U-shaped structure; the reinforcing rod (6) is snap-connected to the U-shaped structure of the second clamping plate (841).

2. The adjustable upper cross arm according to claim 1, characterized in that: The right front connecting rod (1) and the right rear connecting rod (2) are provided with sliding openings at their ends close to each other; the two ends of the guide rod (71) are matched with the sliding openings through guide blocks (72); The guide device (7) also includes a stop nut (73) which is spirally arranged on one end of the front connecting rod and the rear connecting rod close to each other and can prevent the guide block (72) from escaping from the sliding port.

3. The adjustable upper cross arm according to claim 2, characterized in that: A spring (74) is also provided in the sliding opening, and two ends of the spring (74) are respectively pressed against the inner end of the sliding opening and the guide block (72).

4. The adjustable upper cross arm according to claim 1, characterized in that: The telescopic adjustment rod (81) comprises a shaft sleeve (811) with one end rotatably connected to one of the clamping plates, and an adjustment rod (812) with an inner end spirally arranged in the shaft sleeve (811), and an outer end of the adjustment rod (812) is fixedly connected to the other clamping plate.

5. The adjustable upper cross arm according to claim 4, characterized in that: The shaft sleeve (811) comprises a cylindrical main body, and a hexagonal screw-on portion is coaxially arranged on the outer ring of the main body.

6. The adjustable upper cross arm according to claim 5, characterized in that: The shaft sleeve (811) is integrally formed.

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