Electric pedal connection structure, sealing detection method, and vehicle

Abstract

The application discloses an electric pedal connecting structure, a sealing detection method and a vehicle. The electric pedal connecting structure comprises a mounting seat, a connecting seat and two rotating arms. The mounting seat is provided with a first shaft hole. The connecting seat is provided with a second shaft hole. The two ends of the rotating arm are respectively provided with a third shaft hole and a fourth shaft hole. The third shaft hole is rotationally connected with the first shaft hole through a first penetrating pin shaft. The fourth shaft hole is rotationally connected with the second shaft hole through a second penetrating pin shaft. The first pin shaft is gap-fitted with the first shaft hole. The mounting seat is provided with a first sealing structure for sealing the first shaft hole. The second pin shaft is gap-fitted with the fourth shaft hole. The two ends of the fourth shaft hole are both provided with a second sealing structure for sealing the fourth shaft hole. The rotating arm is provided with a detection hole which is communicated with the side wall of the fourth shaft hole. The sealing positions of the first pin shaft and the second pin shaft are different, which ensures the sealing effect and reduces the complexity of the overall sealing structure. The detection hole is arranged to facilitate the detection of the sealing effect and ensure the sealing performance.

Description

Technical Field

[0001] This application belongs to the field of electric pedal technology, and in particular relates to an electric pedal connection structure, a sealing detection method, and a vehicle. Background Technology

[0002] Traditional electric pedals lack an effective sealing structure in the pivot area. For off-road vehicles, after long-term off-road driving, mud can easily seep into the pivot area, causing abnormal noises and, in severe cases, affecting the unfolding or retraction function of the electric pedal, leading to customer complaints and damaging the product's reputation.

[0003] Some related technologies also have sealing structures for the electric pedal pivot area, but either the sealing structure is too complex, which is not conducive to industrial life, or it is difficult to determine whether its sealing effect meets the requirements. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an electric pedal connection structure, a sealing detection method, and a vehicle, which ensures sealing performance while reducing the complexity of the overall sealing structure and facilitating sealing performance testing, thereby ensuring sealing performance.

[0005] In a first aspect, this application provides an electric pedal connection structure, including:

[0006] The mounting base is provided with a mounting groove and two spaced-apart first shaft holes, the first shaft holes passing through the mounting groove;

[0007] The connector has a connecting groove and two spaced-apart second shaft holes, the second shaft holes passing through the connecting groove;

[0008] Two rotating arms are provided with a third shaft hole and a fourth shaft hole at both ends of each rotating arm. One end of each rotating arm is provided in the mounting groove and corresponds to the two first shaft holes respectively. The two rotating arms are rotatably connected to the mounting base by first pins passing through the third shaft hole and the first shaft hole respectively. The other end of each rotating arm is provided in the connecting groove and corresponds to the two second shaft holes respectively. The two rotating arms are rotatably connected to the connecting base by second pins passing through the fourth shaft hole and the second shaft hole respectively.

[0009] Wherein, the first pin is clearance-fitted with the first shaft hole and interference-fitted with the third shaft hole, the mounting base is provided with a first sealing structure for sealing the gap between the first shaft hole and the first pin, and the mounting base is provided with a drive mechanism that is power-coupled to one of the two first pins;

[0010] The second pin is interference-fitted with the second shaft hole and clearance-fitted with the fourth shaft hole. Both ends of the fourth shaft hole are provided with a second sealing structure to seal the gap between the second pin and the fourth shaft hole. The rotating arm is provided with a detection hole that communicates with the side wall of the fourth shaft hole. A detachable sealing element is provided in the detection hole.

[0011] According to the electric pedal connection structure of this application, since it is necessary to drive the rotating arm to rotate the connecting seat, the first pin needs to be fixedly connected to one of the rotating arms so that the first pin and the mounting seat can rotate and engage. Since the first shaft hole penetrates the mounting groove, there are four connecting surfaces between the mounting seat and the first shaft hole, which means that four first sealing structures are needed to seal the mounting seat. By fixing the second pin to the connecting seat so that the second pin and the rotating arm can rotate and engage, only two second sealing structures are needed to seal the rotating arm, which simplifies the overall sealing structure. Furthermore, since the sealing space is located in the connecting groove, it is difficult to test the sealing effect of the fourth shaft hole on the rotating arm. By setting a test hole and using pressure, it is easy to determine whether the sealing effect of the second sealing structure meets the requirements and ensures the sealing performance.

[0012] According to one embodiment of this application, the second sealing structure includes:

[0013] The second bushing is sleeved outside the second pin and located inside the fourth shaft hole;

[0014] The second sealing ring is fitted over the second pin.

[0015] The second cover plate is installed on the rotating arm and covers the fourth shaft hole. The second cover plate presses the second sealing ring tightly against the end face of the rotating arm connected to the fourth shaft hole, and makes the second sealing ring in close contact with the second pin.

[0016] According to one embodiment of this application, the second cover plate is fixedly connected to the rotating arm by a locking screw. One of the second cover plate and the rotating arm is provided with a positioning pin, and the other is provided with a positioning hole. The positioning pin and the positioning hole cooperate to position the device.

[0017] According to one embodiment of this application, the second cover plate is provided with a second through hole for the second pin to pass through, and the side of the second cover plate opposite to the rotating arm is provided with a boss, which is arranged around the second through hole.

[0018] According to one embodiment of this application, the end face of the rotating arm that communicates with the fourth shaft hole is provided with a second sealing groove, the second sealing groove is circumferentially disposed in the fourth shaft hole and communicates with the side wall of the fourth shaft hole, and the second sealing ring is disposed in the second sealing groove.

[0019] According to one embodiment of this application, the first sealing structure includes:

[0020] A first cover plate is installed on the end face of the mounting base that is connected to the first shaft hole;

[0021] A first sealing ring is provided between the first cover plate and the mounting base, and the first sealing ring is arranged around the first shaft hole;

[0022] The first bushing is disposed inside the first shaft hole and sleeved outside the first pin.

[0023] According to one embodiment of this application, the first cover plate covers the two first shaft holes, the first sealing ring is disposed around the two shaft holes, the end face of the mounting base connected to the first shaft hole is provided with a first sealing groove disposed around the two first shaft holes, and the first sealing ring is disposed in the first sealing groove.

[0024] According to one embodiment of this application, the first cover plate through which the first pin passes is provided with a first through hole for the first pin to pass through, a third sealing groove is provided in the first through hole, and a third sealing ring is provided in the first sealing groove and sleeved on the outside of the first pin.

[0025] Secondly, this application provides a sealing performance testing method applied to an electric pedal connection structure as described in the first aspect, the method comprising:

[0026] Remove the seal;

[0027] A pressurizing mechanism is connected to the detection hole to pressurize the fourth shaft hole to a preset pressure and maintain the pressure.

[0028] After waiting for a predetermined period of time, the current pressure inside the fourth shaft hole is detected.

[0029] If the current pressure is greater than or equal to the pressure threshold, it is determined that there is no problem with the sealing performance in the fourth shaft hole;

[0030] Remove the pressurizing mechanism and install the seal.

[0031] According to the sealing test method of this application, the pressure drop inside the fourth shaft hole can be detected by a pressurizing mechanism, which can accurately determine the sealing effect of the second sealing structure. Moreover, it does not require disassembling the electric pedal connection structure, which has high testing efficiency, greatly saves labor costs, and improves production efficiency.

[0032] Thirdly, this application provides a vehicle comprising:

[0033] Body;

[0034] As described in any of the technical solutions in the first aspect, the electric pedal connection structure, wherein the mounting base is fixedly connected to the vehicle body;

[0035] The pedal is fixedly connected to the connecting seat.

[0036] The beneficial effects of the vehicle provided in the third aspect of this application are the same as those of the electric pedal connection structure in the first aspect, and will not be repeated here.

[0037] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0038] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0039] Figure 1 This is a schematic diagram of the installation structure of the connection structure between the pedal and the electric pedal provided in the embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the electric pedal connection structure provided in the embodiments of this application;

[0041] Figure 3 yes Figure 2 Sectional view at point AA;

[0042] Figure 4 yes Figure 2 Sectional view at point BB;

[0043] Figure 5 This is one of the partial exploded structural diagrams of the electric pedal connection structure provided in the embodiments of this application;

[0044] Figure 6 yes Figure 2 Sectional view at CC;

[0045] Figure 7 This is the second partially exploded structural diagram of the electric pedal connection structure provided in the embodiments of this application;

[0046] Figure 8 This is a partial structural schematic diagram of the mounting base provided in an embodiment of this application;

[0047] Figure 9 yes Figure 8 Sectional view at point DD;

[0048] Figure 10 This is one of the structural schematic diagrams of the first cover plate provided in the embodiments of this application;

[0049] Figure 11 yes Figure 10 Sectional view at EE.

[0050] Figure label:

[0051] 1. Electric pedal connection structure; 2. Mounting base; 21. First shaft hole; 22. First sealing groove; 23. Drive mechanism; 3. Connecting base; 31. Second shaft hole; 4. Rotating arm; 41. Third shaft hole; 42. Fourth shaft hole; 43. Detection hole; 44. Seal; 45. Second sealing groove; 46. Positioning hole; 5. First pin; 6. Second pin; 71. First cover plate; 711. First through hole; 712. Third sealing groove; 713. Third sealing ring; 72. First sealing ring; 73. First bushing; 81. Second cover plate; 811. Second through hole; 812. Boss; 813. Positioning pin; 82. Second sealing ring; 83. Second bushing; 9. Locking screw; 91. Screw hole; 10. Pedal. Detailed Implementation

[0052] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0053] The following is for reference. Figures 1-11 The electric pedal connection structure according to an embodiment of this application is described.

[0054] Please see Figure 2 and Figure 3 The electric pedal connection structure 1 of this application embodiment includes a mounting base 2, a connecting base 3, and two rotating arms 4.

[0055] The mounting base 2 has a mounting groove and two spaced-apart first shaft holes 21, with the first shaft holes 21 penetrating the mounting groove. The mounting base 2 is used for fixed connection to the vehicle body, supporting the rotating arm 4, the connecting seat 3, and the pedal 10. The mounting groove on the mounting base 2 facilitates the connection between the rotating arm 4 and the mounting base 2. The first shaft holes 21 penetrate the mounting base 2 and the mounting groove, dividing the first shaft hole 21 into two parts located on either side of the mounting groove. Therefore, the mounting base 2 has at least four surfaces that connect to the first shaft holes 21. It is understood that the two first shaft holes 21 are radially spaced apart to facilitate connection to the two rotating arms 4 respectively.

[0056] The connecting seat 3 has a connecting groove and two spaced-apart second shaft holes 31, with the second shaft holes 31 penetrating the connecting groove. The connecting seat 3 is used to connect with the pedal 10, serving to connect and support the pedal 10. The connecting groove on the connecting seat 3 facilitates the connection between the rotating arm 4 and the connecting seat 3. The second shaft holes 31 penetrate the connecting seat 3 and the connecting groove, dividing the second shaft holes 31 into two parts located on either side of the connecting groove. Therefore, the connecting seat 3 has at least four surfaces that connect with the second shaft holes 31. It is understood that the two second shaft holes 31 are radially spaced apart to facilitate connection with the two rotating arms 4 respectively.

[0057] The two ends of the rotating arm 4 are respectively provided with a third shaft hole 41 and a fourth shaft hole 42. One end of each of the two rotating arms 4 is provided in the mounting groove and corresponds to the two first shaft holes 21 respectively. The two rotating arms 4 are rotatably connected to the mounting base 2 by a first pin 5 passing through the third shaft hole 41 and the first shaft hole 21 respectively. The other end of each of the two rotating arms 4 is provided in the connecting groove and corresponds to the two second shaft holes 31 respectively. The two rotating arms 4 are rotatably connected to the connecting base 3 by a second pin 6 passing through the fourth shaft hole 42 and the second shaft hole 31 respectively.

[0058] The rotating arm 4 is used to connect the mounting base 2 and the connecting base 3. It should be noted that the shapes of the two rotating arms 4 can be the same or different, in order to control the movement trajectory of the pedal 10. No specific limitation is made in this application. The two ends of the rotating arm 4 are respectively provided with a through third shaft hole 41 and a fourth shaft hole 42. For ease of understanding, the example is given where the first end of the rotating arm 4 has a third shaft hole 41 and the second end of the rotating arm 4 has a fourth shaft hole 42.

[0059] The first ends of both rotating arms 4 are installed in mounting grooves and correspond to the two first shaft holes 21 respectively, for connection with the mounting base 2. The first ends of the rotating arms 4 are rotatably connected to the mounting base 2 via first pins 5 passing through the third shaft hole 41 and the first shaft hole 21, allowing the first ends of the rotating arms 4 to rotate around the axis of the first pins 5. It is understood that the first pins 5 have two corresponding to the two rotating arms 4. The second ends of both rotating arms 4 are installed in connecting grooves and correspond to the two second shaft holes 31 respectively, for connection with the connecting base 3. The second ends of the rotating arms 4 are rotatably connected to the connecting base 3 via first pins 5 passing through the fourth shaft hole 42 and the second shaft hole 31, allowing the second ends of the rotating arms 4 to rotate around the axis of the second pins 6. It is understood that the second pins 6 have two corresponding to the two rotating arms 4. Thus, the mounting base 2, the connecting base 3, and the two rotating arms 4 are connected to form a spatial four-bar linkage structure.

[0060] It should be noted that the rotating arm 4 is rotatably connected to the connecting seat 3 or the mounting seat 2 via a pin, and there are several ways to achieve this connection. Firstly, the pin can be fixed to the rotating arm 4, allowing the pin to rotatably engage with the connecting seat 3 or the mounting seat 2. Secondly, the pin can be fixed to the connecting seat 3 or the mounting seat 2, allowing the pin to rotatably engage with the rotating arm 4. Both methods achieve the rotatable connection of the rotating arm 4 to the connecting seat 3 or the mounting seat 2 via the pin.

[0061] In this embodiment, the first pin 5 is clearance-fitted with the first shaft hole 21 and interference-fitted with the third shaft hole 41. The mounting base 2 is provided with a first sealing structure for sealing the gap between the first shaft hole 21 and the first pin 5. The mounting base 2 is provided with a drive mechanism 23 that is power-coupled to one of the two first pins 5.

[0062] The drive mechanism 23 provides driving force to move the pedal 10. It is understood that the drive mechanism 23 typically drives the rotating arm 4 to rotate by rotating the drive pin, thereby moving the pedal 10. Because the drive mechanism 23 is mounted on the mounting base 2, it is dynamically coupled to the first pin 5 to drive the first pin 5 to rotate, making one of the first pins 5 the drive shaft. Since the drive mechanism 23 is fixedly mounted on the mounting base 2, the first pin 5 is clearance-fitted with the first shaft hole 21 to facilitate rotation of the first pin 5 relative to the mounting base 2. Furthermore, because there is a gap between the first pin 5 and the first shaft hole 21, dirt such as mud and sand can easily increase the frictional resistance between the first pin 5 and the first shaft hole 21, leading to abnormal noise or even jamming. Therefore, a first sealing structure is provided on the mounting base 2 to seal the gap between the first shaft hole 21 and the first pin 5, thereby reducing the probability that dirt such as mud and sand will affect the rotational fit between the first shaft hole 21 and the first pin 5. It is understandable that, since the first shaft hole 21 includes two parts separated on both sides of the mounting groove, the first sealing structure corresponding to one first pin 5 needs to seal at least four end faces.

[0063] Meanwhile, in order for the first pin 5 to drive the rotating arm 4 to rotate, the first pin 5 needs to be fixedly connected to the rotating arm 4. By setting the first pin 5 and the third shaft hole 41 to have an interference fit, the stability of the fit can be guaranteed, and there is no gap between the first pin 5 and the third shaft hole 41, so that dirt such as mud and sand will not enter. Therefore, there is no need to set a sealing structure.

[0064] In this embodiment, the second pin 6 is interference-fitted with the second shaft hole and clearance-fitted with the fourth shaft hole 42. Both ends of the fourth shaft hole 42 are provided with a second sealing structure to seal the gap between the second pin 6 and the fourth shaft hole 42. The rotating arm 4 is provided with a detection hole 43 communicating with the side wall of the fourth shaft hole 42. A detachable sealing element 44 is provided in the detection hole 43.

[0065] The second pin 6 uses a different connection method than the first pin 5. Both second pins 6 are driven shafts. By interfering with the second shaft hole 31, the second pin 6 is relatively fixed to the connecting seat 3. The interfering fit ensures that the gap between the second pin 6 and the second shaft hole 31 is extremely small, minimizing the risk of dirt such as mud and sand entering. By clearance fitting the second pin 6 with the fourth shaft hole 42, the second end of the rotating arm 4 can rotate relative to the second pin 6. Since the fourth shaft hole 42 directly penetrates the rotating arm 4, sealing both ends of the fourth shaft hole 42 is sufficient to ensure a seal between the fourth shaft hole 42 and the second pin 6. Therefore, compared to the first pin 5, only two second sealing structures are needed to seal the two end faces of the rotating arm 4 connected to the fourth shaft hole 42 for each second pin 6. This results in a simpler structure, saves material costs, and reduces the complexity of the overall sealing structure.

[0066] It should be noted that the two second sealing structures corresponding to one second pin 6 have the same structure. Although the structures of the two second pins 6 corresponding to the two rotating arms 4 may be different, the connection method between the second pin 6 and the rotating arm 4 is the same. Therefore, the sealing structures of the corresponding second pins 6 and the fourth shaft hole 42 on the two rotating arms 4 are the same.

[0067] Because the second end of the rotating arm 4 is installed in the connecting groove, it is difficult to test and judge the sealing performance of the second sealing structure. The conventional immersion method requires separating the rotating arm 4 from the connecting seat 3, which is not only inefficient and difficult for large-scale testing, but also has a high probability of causing the originally compliant sealing structure to fail due to frequent disassembly and reassembly. By setting a test hole 43 on the side of the rotating arm 4, which communicates with the side wall of the fourth shaft hole 42, the sealing performance of the fourth shaft hole 42 can be checked through the test hole 43. It can be understood that the test hole 43 connects to the sealing space between the two second sealing structures within the fourth shaft hole 42. By removing the seal 44, pressure can be applied to the sealing space through a pressurizing mechanism, and the pressure drop can be measured to determine whether the sealing effect of the second sealing structure meets the standard. After testing, the seal 44 is installed in the test hole 43 to seal it. This method not only provides accurate results but also eliminates the need to disassemble the connecting seat 3 and the rotating arm 4, making it simple and efficient.

[0068] According to the electric pedal connection structure 1 of this application embodiment, since it is necessary to drive the rotating arm 4 to rotate the connecting seat 3, the first pin 5 needs to be fixedly connected to one of the rotating arms 4 so that the first pin 5 and the mounting seat 2 can rotate together. Since the first shaft hole 21 passes through the mounting groove, there are four connecting surfaces between the mounting seat 2 and the first shaft hole 21, which means that four first sealing structures are needed to seal the mounting seat 2. By fixing the second pin 6 to the connecting seat 3 so that the second pin 6 and the rotating arm 4 can rotate together, only two second sealing structures are needed to seal the rotating arm 4, which simplifies the overall sealing structure. Furthermore, since the sealing space is located in the connecting groove, it is difficult to detect the sealing effect of the fourth shaft hole 42 on the rotating arm 4. By setting the detection hole 43 and using pressure, it is easy to determine whether the sealing effect of the second sealing structure meets the requirements and ensures the sealing performance.

[0069] Please see Figure 2 and 3 In some embodiments, the detection hole 43 can be a threaded hole, and the seal 44 can be a sealing screw that is threaded into the threaded hole.

[0070] Please see Figure 4 and Figure 5 According to some embodiments of this application, the second sealing structure includes a second bushing 83, a second sealing ring 82, and a second cover plate 81. The second bushing 83 is sleeved outside the second pin 6 and disposed inside the fourth shaft hole 42; the second sealing ring 82 is sleeved outside the second pin 6; the second cover plate 81 is installed on the rotating arm 4 and covers the fourth shaft hole 42, the second cover plate 81 presses the second sealing ring 82 against the end face of the rotating arm 4 connected to the fourth shaft hole 42, and makes the second sealing ring 82 in close contact with the second pin 6.

[0071] The second bushing 83 is generally made of wear-resistant material. By setting the second bushing 83 between the second pin 6 and the inner wall of the fourth shaft hole 42, the wear between the second pin 6 and the fourth shaft hole 42 can be reduced, and a certain sealing effect can be achieved, thus improving the sealing effect.

[0072] The second sealing ring 82 is sleeved outside the second pin 6 and located at the end of the fourth shaft hole 42 to play the main sealing role. The second sealing ring 82 can be made of elastic material to ensure the sealing performance of the second sealing ring 82. It should be noted that the cross-sectional shape of the second sealing ring 82 is not limited here, and can be circular, square, V-shaped, trapezoidal, etc.

[0073] The second cover plate 81 is installed on the rotating arm 4 and covers the fourth shaft hole 42. It can protect the fourth shaft hole 42 and the second sealing ring 82 to a certain extent. The second sealing ring 82 is pressed by the second cover plate 81 on the end face where the rotating arm 4 and the fourth shaft hole 42 are connected, thereby sealing the contact surface between the second sealing ring 82 and the rotating arm 4. Furthermore, the second sealing ring 82 is in close contact with the second pin 6 under the action of the second cover plate 81, thereby sealing the contact surface between the second sealing ring 82 and the second pin 6. This ensures that the second sealing ring 82 seals the gap between the fourth shaft hole 42 and the second pin 6, thus guaranteeing the sealing performance.

[0074] Because the second pin 6 passes through the second shaft hole 31 and the fourth shaft hole 42, the second cover plate 81, the second sealing ring 82, and the second bushing 83 need to be installed on the rotating arm 4 first, and then the second pin 6 needs to be installed. Therefore, there is a risk of misalignment or even detachment of the sealing ring during the press-fitting of the second pin 6. The second cover plate 81 ensures that the sealing ring will not fall off, simplifies the installation process, and guarantees the stability and sealing effect of the sealing ring installation.

[0075] Please see Figure 5 According to some embodiments of this application, the second cover plate 81 is fixedly connected to the rotating arm 4 by a locking screw 9. One of the second cover plate 81 and the rotating arm 4 is provided with a positioning pin 813, and the other is provided with a positioning hole 46. The positioning pin 813 and the positioning hole 46 cooperate to position the device.

[0076] The second cover plate 81 is fixed by setting the locking screw 9 to cooperate with the screw hole 91 on the rotating arm 4. The installation strength is high and the installation is simple. It can provide sufficient pressing force to ensure the installation stability and sealing performance of the second sealing ring 82.

[0077] By setting the positioning pin 813 and positioning hole 46 for positioning, the assembly efficiency of the second cover plate 81 is improved, the assembly accuracy of the second cover plate 81 is improved, the assembly error is reduced, and the second sealing ring 82 can be properly pressed and form an effective seal.

[0078] The positioning pins 813 and positioning holes 46 can be provided in multiple pairs to improve the stability of the assembly. For example, there can be two positioning pins 813 and two positioning holes 46 corresponding to the positioning pins 813.

[0079] In one example, a locating pin 813 is provided on the second cover plate 81, and a locating hole 46 is provided on the rotating arm 4, so as to reduce the thickness of the second cover plate 81, reduce the assembly space, and optimize the spatial layout.

[0080] Please see Figure 4 and Figure 5According to some embodiments of this application, the second cover plate 81 is provided with a second through hole 811 for the second pin 6 to pass through, and the second cover plate 81 is provided with a boss 812 on the side away from the rotating arm 4, and the boss 812 is arranged around the second through hole 811.

[0081] The second cover plate 81 is designed with a second through hole 811 for the second pin 6 to pass through. The second pin 6 can pass smoothly through the second cover plate 81 to achieve the connection between the rotating arm 4 and the connecting seat 3. The second through hole 811 can be clearance-fitted with the second pin 6.

[0082] The boss 812 can enhance the structural stability of the second cover plate 81 and increase the clamping force of the second cover plate 81. Since the boss 812 is located on the side of the second cover plate 81 facing the connecting seat 3, when the rotating arm 4 rotates relative to the connecting seat 3, the second cover plate 81 and the connecting seat 3 also move relative to each other. By setting the boss 812, the wear resistance of the second cover plate 81 can be improved, and the overall durability can be improved.

[0083] Please see Figure 4 and Figure 5 According to some embodiments of this application, the end face of the rotating arm 4 that communicates with the fourth shaft hole 42 is provided with a second sealing groove 45. The second sealing groove 45 is circumferentially disposed in the fourth shaft hole 42 and communicates with the side wall of the fourth shaft hole 42. The second sealing ring 82 is disposed in the second sealing groove 45.

[0084] By providing a second sealing groove 45 on the end face of the rotating arm 4, the correct installation position of the second sealing ring 82 is ensured. Simultaneously, the design of the second sealing groove 45 communicating with the side wall of the fourth shaft hole 42 allows the second sealing ring 82 to fit tightly between the rotating arm 4 and the second pin 6, forming an effective sealing barrier. This improves sealing performance and effectively prevents dust, mud, and other impurities from entering the connection area between the rotating arm 4 and the second pin 6.

[0085] Understandably, the thickness of the second sealing ring 82 is greater than the depth of the second sealing groove 45, so that at least a portion of the second sealing ring 82 extends out of the second sealing groove 45 before the second cover plate 81 is installed. This allows the portion of the second sealing ring 82 extending out of the second sealing groove 45 to be pressed into the second sealing groove 45 when the second cover plate 81 is installed on the rotating arm 4. This causes the second sealing ring 82 to tighten within the second sealing groove 45, ensuring tight contact between the second sealing ring 82 and the bottom wall of the second sealing groove 45 and the side wall of the second pin 6, thus ensuring sealing performance.

[0086] Please see Figure 6 and Figure 7According to some embodiments of this application, the first sealing structure includes a first cover plate 71, a first sealing ring 72, and a first bushing 73. The first cover plate 71 is installed on the end face of the mounting base 2 connected to the first shaft hole 21. The first sealing ring 72 is provided between the first cover plate 71 and the mounting base 2, and the first sealing ring 72 is arranged around the first shaft hole 21. The first bushing 73 is disposed inside the first shaft hole 21 and sleeved on the outside of the first pin 5.

[0087] Understandably, multiple first cover plates 71 are provided, with each end face of the mounting base 2 connected to the first shaft hole 21 equipped with a first cover plate 71. The first cover plate 71 serves to shield and protect the first pin 5 and provides a seal. The first cover plate 71 can be locked by engaging the locking screw 9 with the screw hole 91 on the mounting base 2, ensuring the installation strength of the first cover plate 71. A first sealing ring 72 is provided between the first cover plate 71 and the mounting base 2 to seal the gap between them. By placing the first sealing ring 72 around the first shaft hole 21, it reduces the entry of debris such as mud and sand into the first shaft hole 21 through the gap between the first cover plate 71 and the mounting base 2, thus improving the sealing effect. The first bushing 73 is provided to reduce frictional wear on the first pin 5 and further enhance the sealing effect.

[0088] The cross-sectional shape of the first sealing ring 72 is not limited here; it can be circular, rectangular, V-shaped, trapezoidal, etc.

[0089] Please see Figures 6 to 9 According to some embodiments of this application, the first cover plate 71 covers the two first shaft holes 21, the first sealing ring 72 is arranged around the two shaft holes, the end face of the mounting base 2 connected to the first shaft holes 21 is provided with a first sealing groove 22 arranged around the two first shaft holes 21, and the first sealing ring 72 is disposed in the first sealing groove 22.

[0090] Since the two first shaft holes 21 are close together and the end faces requiring sealing are both located on the mounting base 2, the first cover plate 71 can simultaneously cover both first shaft holes 21, and the first sealing ring 72 is arranged around both first shaft holes 21. This allows the first cover plate 71 and the first sealing ring 72 to seal both holes simultaneously, reducing the number of parts, simplifying the installation process, and improving production efficiency. The first sealing groove 22 ensures the stability of the position of the first sealing ring 72, improving its installation stability, facilitating installation, and enhancing sealing performance.

[0091] It should be noted that among the multiple first cover plates 71, the first cover plate 71 located on the side of the mounting base 2 away from the drive mechanism 23 can be a blind plate. The blind plate covers the first shaft hole 21, providing a good sealing effect and protecting the first shaft hole 21 and the first pin 5. However, because the first pin 5 passes through the mounting base 2 and the rotating arm 4, all other first cover plates 71 are also penetrated by the first pin 5 connected to the drive mechanism 23.

[0092] Please see Figure 6 Figure 10 and Figure 11 According to some embodiments of this application, the first cover plate 71 through which the first pin 5 passes is provided with a first through hole 711 for the first pin 5 to pass through, a third sealing groove 712 is provided in the first through hole 711, and a third sealing ring 713 sleeved on the outside of the first pin 5 is provided in the first sealing groove 22.

[0093] Because the first through hole 711 allows mud, sand, and other debris to easily enter the first shaft hole 21, a third sealing groove 712 is provided in the first through hole 711 to facilitate the positioning and installation of the third sealing ring 713, thereby improving the installation stability of the third sealing ring 713. By providing the third sealing ring 713, the gap between the first pin 5 and the first through hole 711 is sealed, thus cooperating with the first sealing ring 72 to achieve a complete seal between the first shaft hole 21 and the first pin 5, ensuring overall sealing performance.

[0094] The cross-sectional shape of the third sealing ring 713 is not limited here; it can be circular, rectangular, V-shaped, trapezoidal, etc.

[0095] It should be further explained that, among the multiple first cover plates 71, the first cover plate 71 located on the side of the mounting base 2 near the drive mechanism 23 may have only one first through hole 711 for the first pin 5 connected to the drive mechanism 23 to pass through, and the other first pin 5 not connected to the drive mechanism 23 may not extend out of the outer surface of the mounting base 2, so that the first cover plate 71 corresponding to the position of the first pin 5 not connected to the drive mechanism 23 may not have a first through hole 711.

[0096] This application embodiment also provides a sealing test method, applied to the electric pedal connection structure 1 as described above, the method including steps 100, 200, 300, 400 and 500.

[0097] Step 100: Remove the seal 44;

[0098] Step 200: Connect the pressurizing mechanism to the detection hole 43, pressurize the fourth shaft hole 42 to a preset pressure and maintain the pressure;

[0099] Step 300: After waiting for a predetermined period of time, detect the current pressure inside the fourth shaft hole 42;

[0100] Step 400: If the current pressure is greater than or equal to the pressure threshold, determine that there is no problem with the sealing performance of the fourth shaft hole 42;

[0101] Step 500: Remove the pressurizing mechanism and install the sealing element 44.

[0102] After the entire electric pedal connection structure 1 is assembled, the seal 44 is removed to open the detection hole 43. A pressurizing mechanism, such as an air compressor, is connected to the detection hole 43 to inject compressed gas into the fourth shaft hole 42, increasing the pressure within the sealed space of the fourth shaft hole 42. The pressure is stopped when the preset pressure is reached, and the seal is maintained. After a predetermined time, the current pressure within the fourth shaft hole 42 is measured to determine the pressure drop. The pressure threshold can be equal to or slightly lower than the preset pressure. If the current pressure is greater than or equal to the pressure threshold, it indicates that the pressure drop in the sealed space is small, the sealing performance meets the design standards, and it can be determined that the sealing performance within the fourth shaft hole 42 is not problematic. The pressurizing mechanism is then removed, and the seal 44 is installed to ensure the fourth shaft hole 42 is sealed.

[0103] Understandably, when the pressure drop exceeds the pressure threshold, the cause can be investigated in a timely manner, the design and assembly process can be optimized, and production and R&D efficiency can be improved.

[0104] The detection method provided in this application embodiment can accurately determine the sealing performance of the electric pedal connection structure 1, with accurate results and high detection efficiency, which helps to improve production and R&D efficiency.

[0105] This application also provides a vehicle, which includes a vehicle body, an electric pedal connection structure 1 as described in any of the above technical solutions, and a pedal 10. The mounting seat 2 is fixedly connected to the vehicle body, and the pedal 10 is fixedly connected to the connecting seat 3.

[0106] Please refer to Figure 1 Two electric pedal connection structures 1 can be provided, and the pedal 10 is connected to the vehicle body through the two electric pedal connection structures 1.

[0107] Since the vehicle in this application embodiment includes the electric pedal connection structure 1 as described in any of the above technical solutions, it has the technical features and effects of the electric pedal connection structure 1 as described in any of the above technical solutions, which will not be repeated here.

[0108] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0109] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0110] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0111] In the description of this application, "multiple" means two or more.

[0112] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0113] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0114] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0115] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric pedal connection structure, characterized in that, include: The mounting base is provided with a mounting groove and two spaced-apart first shaft holes, the first shaft holes passing through the mounting groove; The connector has a connecting groove and two spaced-apart second shaft holes, the second shaft holes passing through the connecting groove; Two rotating arms are provided with a third shaft hole and a fourth shaft hole at both ends of each rotating arm. One end of each rotating arm is provided in the mounting groove and corresponds to the two first shaft holes respectively. The two rotating arms are rotatably connected to the mounting base by first pins passing through the third shaft hole and the first shaft hole respectively. The other end of each rotating arm is provided in the connecting groove and corresponds to the two second shaft holes respectively. The two rotating arms are rotatably connected to the connecting base by second pins passing through the fourth shaft hole and the second shaft hole respectively. Wherein, the first pin is clearance-fitted with the first shaft hole and interference-fitted with the third shaft hole, the mounting base is provided with a first sealing structure for sealing the gap between the first shaft hole and the first pin, and the mounting base is provided with a drive mechanism that is power-coupled to one of the two first pins; The second pin is interference-fitted with the second shaft hole and clearance-fitted with the fourth shaft hole. Both ends of the fourth shaft hole are provided with a second sealing structure to seal the gap between the second pin and the fourth shaft hole. The rotating arm is provided with a detection hole communicating with the side wall of the fourth shaft hole. A detachable sealing element is provided in the detection hole. The second sealing structure includes: The second bushing is sleeved outside the second pin and located inside the fourth shaft hole; The second sealing ring is fitted over the second pin. The second cover plate is installed on the rotating arm and covers the fourth shaft hole. The second cover plate presses the second sealing ring tightly against the end face of the rotating arm connected to the fourth shaft hole, and makes the second sealing ring in close contact with the second pin. The second cover plate protects the fourth shaft hole and the second sealing ring, and simplifies the installation process.

2. The electric pedal connection structure according to claim 1, characterized in that, The second cover plate is fixedly connected to the rotating arm by locking screws. One of the second cover plate and the rotating arm is provided with a positioning pin, and the other is provided with a positioning hole. The positioning pin and the positioning hole cooperate to position the device.

3. The electric pedal connection structure according to claim 1, characterized in that, The second cover plate is provided with a second through hole for the second pin to pass through, and a boss is provided on the side of the second cover plate away from the rotating arm, the boss being arranged around the second through hole.

4. The electric pedal connection structure according to claim 1, characterized in that, The end face of the rotating arm that communicates with the fourth shaft hole is provided with a second sealing groove. The second sealing groove is circumferentially disposed in the fourth shaft hole and communicates with the side wall of the fourth shaft hole. The second sealing ring is disposed in the second sealing groove.

5. The electric pedal connection structure according to any one of claims 1-4, characterized in that, The first sealing structure includes: A first cover plate is installed on the end face of the mounting base that is connected to the first shaft hole; A first sealing ring is provided between the first cover plate and the mounting base, and the first sealing ring is arranged around the first shaft hole; The first bushing is disposed inside the first shaft hole and sleeved outside the first pin.

6. The electric pedal connection structure according to claim 5, characterized in that, The first cover plate covers the two first shaft holes, the first sealing ring is arranged around the two shaft holes, the end face of the mounting base connected to the first shaft hole is provided with a first sealing groove arranged around the two first shaft holes, and the first sealing ring is arranged in the first sealing groove.

7. The electric pedal connection structure according to claim 5, characterized in that, The first cover plate, which is penetrated by the first pin, is provided with a first through hole for the first pin to pass through. A third sealing groove is provided in the first through hole, and a third sealing ring is provided in the first sealing groove and fitted outside the first pin.

8. A sealing test method, applied to the electric pedal connection structure as described in any one of claims 1-7, characterized in that, The method includes: Remove the seal; A pressurizing mechanism is connected to the detection hole to pressurize the fourth shaft hole to a preset pressure and maintain the pressure. After waiting for a predetermined period of time, the current pressure inside the fourth shaft hole is detected. If the current pressure is greater than or equal to the pressure threshold, it is determined that there is no problem with the sealing performance in the fourth shaft hole; Remove the pressurizing mechanism and install the seal.

9. A vehicle, characterized in that, include: Body; The electric pedal connection structure as described in any one of claims 1-7, wherein the mounting base is fixedly connected to the vehicle body; The pedal is fixedly connected to the connecting seat.

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