Automobile sliding door strength test detection device

Abstract

The invention relates to an automobile sliding door strength test detection device, and belongs to the technical field of automobile sliding door detection devices.The automobile sliding door strength test detection device comprises a rack, a sliding assembly and a pulling assembly, the rack is arranged beside an automobile sliding door, the sliding assembly comprises a sliding cylinder, a sliding plate and a connecting rod, the sliding plate is arranged on the rack in a sliding mode, and the sliding cylinder is arranged on the rack; the output end of the sliding cylinder is connected with the sliding plate. The sliding direction of the sliding plate is parallel to the sliding direction of the automobile sliding door. The connecting rod is a rigid rod, the two ends of the connecting rod are connected with the sliding plate and the automobile sliding door respectively, the pulling assembly is arranged on the sliding plate, the output end of the pulling assembly is connected with a handle of the automobile sliding door, and the pulling assembly is used for relieving the mutual locking matching relation of the automobile sliding door and the automobile door.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile sliding door detection devices, and particularly relates to an automobile sliding door strength test detection device. Background Art

[0002] The sliding durability of a car sliding door is one of the indicators for testing the strength of the car sliding door. When evaluating the strength of a car sliding door, it is necessary to test the sliding durability of the car sliding door. Currently, special test equipment is used to test the sliding durability of car sliding doors.

[0003] For example, the utility model patent with patent authorization announcement number: CN213336797U discloses a durability test device for automobile sliding doors, including a test mechanism, the test structure including a frame, an unlocking assembly, a push-pull assembly and a controller, the frame including a base, a bracket installed on the base and a slide rail installed on the bracket; the unlocking assembly includes a pull rope, a first driving member and a slide frame, the first end of the pull rope is connected to the outward opening handle of the sliding door, the second end of the pull rope is connected to the first driving member, the first driving member is used to unlock the outward opening handle by pulling the pull rope, and the first driving member is installed on the slide frame; the push-pull assembly includes a second driving member and a slider, the slider is in sliding contact with the slide rail, the second driving member is installed on the bracket and connected to the slider, the slide frame is installed on the slider, and the second driving member is used to drive the slider to slide back and forth along the slide rail; the first driving member and the second driving member are both electrically connected to the controller.

[0004] Based on the search of the above patent authorization announcement number and the shortcomings found therein: Existing test devices all use a rope to pull the sliding door to achieve the sliding of the sliding door; however, in the actual process of pulling the sliding door with the rope, since the pulling direction of the sliding door by the rope is not completely parallel to the sliding direction of the sliding door, the friction of the sliding door on the sliding rail that limits its sliding direction will increase during the sliding process of the sliding door, making it impossible for the existing test device to obtain the durability of the automobile sliding door under ideal conditions. Summary of the Invention

[0005] In order to solve the problem that the existing test devices all use a rope to pull the sliding door to achieve the sliding of the sliding door; however, in the actual process of pulling the sliding door with the rope, since the pulling direction of the sliding door by the rope is not completely parallel to the sliding direction of the sliding door, the friction of the sliding door on the sliding rail that limits its sliding direction will increase during the sliding process of the sliding door, making it impossible for the existing test device to obtain the durability of the automobile sliding door under ideal conditions, the present invention provides a car sliding door strength test detection device.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A vehicle sliding door strength test and detection device includes a frame, a sliding assembly and a pulling assembly, the frame is arranged next to the vehicle sliding door, the sliding assembly includes a sliding cylinder, a slide plate and a connecting rod, the slide plate is slidably arranged on the frame, the sliding cylinder is arranged on the frame, the output end of the sliding cylinder is interconnected with the slide plate, and the sliding direction of the slide plate is parallel to the sliding direction of the vehicle sliding door; the connecting rod is a rigid rod, and the two ends of the connecting rod are respectively interconnected with the slide plate and the vehicle sliding door, the pulling assembly is arranged on the slide plate, and the output end of the pulling assembly is connected to the handle of the vehicle sliding door, which is used to release the mutually locked matching relationship between the vehicle sliding door and the vehicle door.

[0007] As a preferred technical solution of the present invention, the pulling assembly includes a pulling rope and a pulling cylinder. The pulling cylinder is arranged on the skateboard. The two ends of the pulling rope are respectively connected to the output end of the pulling cylinder and the handle of the car sliding door. The extension and retraction direction of the output end of the pulling cylinder is perpendicular to the sliding direction of the skateboard.

[0008] As a preferred technical solution of the present invention, the connecting rod includes a first connecting block and a second connecting block whose central axes are parallel to each other, and a connecting assembly, one end of the first connecting block is interconnected with the automobile sliding door, one end of the second connecting block is interconnected with the slide, one end of the connecting assembly is arranged on the second connecting block, and the other end of the connecting assembly can lock or release its abutting relationship with the first connecting block.

[0009] As a preferred technical solution of the present invention, the connecting assembly includes a blocking plate, one end of which is interconnected with the second connecting block, and the blocking plate is located on the side of the second connecting block close to the place where the automobile sliding door is locked to the door; when the central axis of the second connecting block and the central axis of the first connecting block coincide with each other, the other end of the blocking plate is abutted against the first connecting block.

[0010] As a preferred technical solution of the present invention, the connecting assembly also includes a lifting plate and a lifting unit. The lifting unit is arranged at one end of the second connecting block. The lifting plate can be lifted and connected to the output end of the lifting unit. The lifting plate is located on the other side of the second connecting block relative to the blocking plate. The other end of the lifting plate can lock or release its abutting relationship with the first connecting block.

[0011] As a preferred technical solution of the present invention, the lifting unit includes an internal hollow lifting frame, a pushing plate, a pushing spring and a limiting structure. The lifting frame is vertically arranged on the second connecting block. The lifting frame is provided with a lifting slot hole. The pushing plate can be slidably arranged in the lifting slot hole. The pushing plate and the lifting plate are connected to each other. The pushing spring is arranged in the lifting slot hole. The two ends of the pushing spring are respectively connected to the pushing plate and the lifting frame. The limiting structure is arranged in the lifting frame. The limiting structure can lock or release its limiting relationship with the pushing plate.

[0012] As a preferred technical solution of the present invention, the lifting unit also includes a lifting block, which is arranged on the frame. The front end of the lifting block is inclined, and the vertical height of the lifting block gradually increases from the horizontal sliding direction of the sliding curve to the sliding straight line. The lifting frame is also provided with a connecting slot hole, and the connecting slot hole is connected to the lifting slot hole. The lifting frame passes through the lifting block through the connecting slot hole, and the bottom of the push plate can lock or release its abutting relationship with the lifting block.

[0013] As a preferred technical solution of the present invention, the position where the highest height of the inclined end of the lifting block is projected onto the sliding rail of the automobile sliding door is located at the intersection of the sliding curve and the sliding straight line.

[0014] As a preferred technical solution of the present invention, the limiting structure includes a limiting block and a limiting spring, and the lifting frame is also provided with a limiting slot hole, the limiting slot hole and the lifting slot hole are connected to each other, the limiting block can be slidably arranged in the limiting slot hole, the two ends of the limiting spring are respectively connected to the limiting block and the lifting frame, the top surface height of the limiting block is the same as the top surface height of the lifting block, and the limiting block can lock or release its limiting relationship with the push plate.

[0015] As a preferred technical solution of the present invention, the limiting structure also includes an unlocking block and an unlocking rod. The unlocking rod is arranged on the frame, and the limiting block is slidably arranged through one end of the lifting frame. The unlocking block is arranged on the part of the limiting block extending outside the lifting frame. The unlocking block is inclined near one end of the unlocking rod. Along the sliding direction of the straight line from the sliding straight line to the sliding curve, the horizontal width of the unlocking block gradually decreases, and the unlocking rod can lock or release its abutting relationship with the unlocking block.

[0016] The beneficial effects of the present invention are: By providing a pulling assembly, the pulling assembly is used to release the mutually locked cooperation relationship between the automobile sliding door and the vehicle door, so that the automobile sliding door is in a sliding state, and then the sliding cylinder starts to work, driving the slide plate to slide along the frame. Since the two ends of the connecting rod are respectively connected to the slide plate and the automobile sliding door, the sliding of the automobile sliding door is achieved. In addition, it should be noted that since the connecting rod of this scheme is a rigid rod, the structure of the connecting rod will not be deformed, which makes the direction of the force exerted by the connecting rod on the automobile sliding door parallel to the sliding direction of the automobile sliding door during the process of the connecting rod driving the automobile sliding door to slide. Such a structural arrangement , which can truly reflect the friction between the automobile sliding door and the sliding rail that limits its sliding direction when the automobile sliding door slides, and then obtain the durability of the automobile sliding door sliding on the sliding rail under ideal conditions, solving the problem that the existing test devices all use a rope to pull the sliding door to achieve the sliding of the sliding door; however, in the actual process of pulling the sliding door with the rope, since the pulling direction of the sliding door by the rope is not completely parallel to the sliding direction of the sliding door, the friction between the sliding door and the sliding rail that limits its sliding direction will increase during the sliding process of the sliding door, making it impossible for the existing test device to obtain the durability of the automobile sliding door under ideal conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 This is an overall diagram of a vehicle sliding door strength test and detection device according to the present invention; Figure 2 This is an overall diagram of the frame of a vehicle sliding door strength test and detection device according to the present invention; Figure 3 This is an overall diagram of the sliding assembly of a vehicle sliding door strength test and detection device of the present invention; Figure 4 This is a diagram of parts on a slide plate of a vehicle sliding door strength test and detection device according to the present invention; Figure 5 This is a front view of a lifting unit of a vehicle sliding door strength test and detection device according to the present invention; Figure 6 This is an overall diagram of the lifting unit of a vehicle sliding door strength test and detection device of the present invention; Figure 7 This is an overall diagram of the lifting block of a vehicle sliding door strength test and detection device according to the present invention.

[0019] Description of main symbols In the figure: 1. Frame; 2. Sliding assembly; 201. Sliding cylinder; 202. Slide plate; 203. Connecting rod; 3. Pulling assembly; 301. Pulling rope; 302. Pulling cylinder; 4. Automobile sliding door; 5. First connecting block; 6. Second connecting block; 7. Connecting assembly; 701. Blocking plate; 702. Lifting plate; 8. Lifting unit; 801. Lifting frame; 802. Pushing plate; 803. Pushing spring; 804. Lifting block; 9. Limiting structure; 901. Limiting block; 902. Limiting spring; 903. Unlocking block; 904. Unlocking rod. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-Figure 7The present embodiment provides a vehicle sliding door strength test device, comprising a frame 1, a sliding assembly 2 and a pulling assembly 3. The frame 1 is arranged next to the vehicle sliding door 4. The sliding assembly 2 comprises a sliding cylinder 201, a slide plate 202 and a connecting rod 203. The slide plate 202 is slidably arranged on the frame 1. The sliding cylinder 201 is arranged on the frame 1. The output end of the sliding cylinder 201 is connected to the slide plate 202. The sliding direction of the slide plate 202 is parallel to the sliding direction of the vehicle sliding door 4. The connecting rod 203 is a rigid rod. The two ends of the connecting rod 203 are respectively The sliding door 4 of the car is connected to the sliding plate 202 and the sliding door 4 of the car. The pulling component 3 is provided on the sliding plate 202. The output end of the pulling component 3 is connected to the handle of the sliding door 4 of the car to release the mutually locked cooperation relationship between the sliding door 4 of the car and the car door. In this solution, the pulling component 3 is provided. The pulling component 3 is used to release the mutually locked cooperation relationship between the sliding door 4 of the car and the car door, so that the sliding door 4 of the car is in a sliding state. Then the sliding cylinder 201 starts to work, driving the sliding plate 202 to slide along the frame 1. Since the two ends of the connecting rod 203 are respectively connected to the sliding door 4 of the car, the sliding door 4 of the car is in a sliding state. The slide plate 202 and the automobile sliding door 4 are connected to each other, thereby realizing the sliding of the automobile sliding door 4; in addition, it should be noted that, since the connecting rod 203 of the present invention is a rigid rod, the structure of the connecting rod 203 will not be deformed, which makes the connecting rod 203 drive the automobile sliding door 4 to slide. The direction of the force exerted by the connecting rod 203 on the automobile sliding door 4 is parallel to the sliding direction of the automobile sliding door 4. Such a structural setting can truly reflect the relationship between the automobile sliding door 4 and the sliding rail that limits its sliding direction when the automobile sliding door 4 slides. The friction force can be obtained, and then the durability of the automobile sliding door 4 sliding on the sliding rail under ideal conditions can be obtained, which solves the problem that the existing test devices all use a rope to pull the sliding door to achieve the sliding of the sliding door; however, in the actual process of pulling the sliding door with the rope, since the pulling direction of the sliding door by the rope is not completely parallel to the sliding direction of the sliding door, the friction force of the sliding door on the sliding rail that limits its sliding direction will increase during the sliding process of the sliding door, making it impossible for the existing test device to obtain the durability of the automobile sliding door 4 under ideal conditions.

[0022] In addition, it should be noted that in order to improve the strength of the automobile sliding door 4, the sliding structure at the bottom of the automobile sliding door 4 or the material of the sliding structure of the automobile sliding door 4 is usually improved, in the hope of enhancing the durability of the automobile sliding door 4 sliding on the sliding rail, thereby increasing the strength of the automobile sliding door 4 in disguise; therefore, in order to obtain accurate data, it is necessary to test the durability of the automobile sliding door 4 sliding on the sliding rail under ideal conditions, which is also the purpose of designing the test device in this scheme.

[0023] It should be noted that before the car sliding door 4 slides, it is necessary to pull the handle provided on the car sliding door 4 so that the handle releases the mutually locked cooperation relationship between the car sliding door 4 and the car door; in this solution, the handle of the car sliding door 4 is provided on the outside of the car sliding door 4, and one end of the handle is hinged to the car sliding door 4. By pulling the other end of the handle, the handle is rotated to a specific angle along the hinged end with the car sliding door 4, and the handle can release the mutually locked relationship between the car sliding door 4 and the car door; based on this, in order to adapt to the rotation method of the handle, the pulling component 3 of this solution includes a pulling rope 301 and a pulling cylinder 302. The pulling cylinder 302 is arranged on the slide 202, and the two ends of the pulling rope 301 are respectively connected to the output end of the pulling cylinder 302 and the handle of the automobile sliding door 4, and the extension and contraction direction of the output end of the pulling cylinder 302 is perpendicular to the sliding direction of the slide 202; by providing the pulling cylinder 302, when the automobile sliding door 4 and the car door are in a locked state, the pulling cylinder 302 is located opposite to the handle of the automobile sliding door 4, and the output end of the pulling cylinder 302 contracts to control the pulling rope 301 to move toward the direction close to the pulling rod, thereby realizing the pulling of the handle by the pulling rope 301, thereby releasing the mutually locking cooperation relationship between the automobile sliding door 4 and the car door.

[0024] It is also worth mentioning that the actual sliding trajectory of the automobile sliding door 4 includes a sliding curve and a sliding straight line connected in sequence, and the axial direction of the sliding straight line is parallel to the axial direction of the slide plate 202; the sliding curve is set tangent to the sliding straight line, and the distance between the sliding curve and the frame 1 gradually decreases from the end of the sliding curve away from the sliding straight line to the end close to the sliding straight line. In addition, it is worth mentioning that when the pulling component 3 pulls the handle to release the mutually locked cooperation relationship between the automobile sliding door 4 and the vehicle door, at this moment, due to the elastic structure inside the automobile sliding door 4, the elastic structure will release the elastic potential energy, causing the automobile sliding door 4 to slide a short distance along the sliding curve; however, due to the rigid structure of the connecting rod 203, the connecting rod 203 will limit the movement of the automobile sliding door 4, so that at the moment the automobile sliding door 4 is unlocked, the elastic structure inside the automobile sliding door 4 cannot drive the automobile sliding door 4 to move; such a setting is not conducive to simulating the sliding condition of the automobile sliding door 4 under an ideal state; based on this, the connecting rod 203 of this scheme includes a first connecting block 5 and a second connecting block 6, whose central axes are parallel to each other, and a connecting component 7, the first connecting block 5 One end of the connecting component 7 is interconnected with the automobile sliding door 4, one end of the second connecting block 6 is interconnected with the slide plate 202, one end of the connecting component 7 is arranged on the second connecting block 6, and the other end of the connecting component 7 can lock or release its abutting and fitting relationship with the first connecting block 5; it should be noted that, in the initial state, the other end of the connecting component 7 is in the state of releasing its abutting and fitting relationship with the first connecting block 5, at this time, the first connecting block 5 can move relative to the second connecting block 6; on the contrary, when the other end of the connecting component 7 locks its abutting and fitting relationship with the first connecting block 5, the first connecting block 5 will be restricted from moving together with the second connecting block 6; through such a setting, when the automobile sliding door 4 is unlocked, the automobile sliding door 4 will move a short distance relative to the slide plate 202 along the direction of the sliding curve.

[0025] It is worth noting that in order to ensure the normal operation of the device, the distance between the first connecting block 5 and the second connecting block 6 is greater than the distance between the two ends of the sliding curve projected on the central axis direction of the first connecting block 5. Through such a setting, when the automobile sliding door 4 slides along the sliding curve, the movement of the first connecting block 5 will not interfere with the second connecting block 6.

[0026] According to the description of the above embodiment, it can be known that when driving the automobile sliding door 4 to slide, the connecting rod 203 is required to be in a rigid state as a whole, that is, the connecting component 7 is required to lock the abutting and fitting relationship between it and the first connecting block 5; and because the automobile sliding door 4 is releasing the mutual locking state with the vehicle door, the automobile sliding door 4 will move a short distance relative to the slide plate 202 along the sliding curve. In order to ensure that the connecting component 7 can re-lock the abutting and fitting relationship between it and the first connecting block 5, the connecting component 7 of this solution includes a blocking plate 701, one end of the blocking plate 701 is interconnected with the second connecting block 6, and the blocking plate 701 is located at the second connecting block 6 close to the automobile sliding door. The sliding door 4 is locked to one side of the vehicle door; when the central axis of the second connecting block 6 and the central axis of the first connecting block 5 coincide with each other, the other end of the blocking plate 701 abuts against the first connecting block 5; through such a setting, after the vehicle sliding door 4 is released from its locked state with the vehicle door, the sliding cylinder 201 starts to work, driving the slide plate 202 to slide until the central axis of the second connecting block 6 and the central axis of the first connecting block 5 coincide with each other, and the blocking plate 701 is again arranged to fit together with the first connecting block 5; as the sliding cylinder 201 continues to work, the sliding of the second connecting block 6 will drive the first connecting block 5 to slide together, thereby driving the sliding of the vehicle sliding door 4.

[0027] In addition, according to the description of the above embodiment, since the blocking plate 701 is arranged on the side of the second connecting block 6 close to the place where the automobile sliding door 4 is locked to the vehicle door, that is, the blocking plate 701 is arranged on the side of the second connecting block 6 close to the sliding curve, therefore, when the sliding plate 202 moves from one end of the sliding curve to one end of the sliding straight line, the blocking plate 701 will again maintain a state of mutual contact with the first connecting block 5 and push the first connecting block 5 to achieve the movement of the automobile sliding door 4 from one end of the sliding curve to one end of the sliding straight line; however, when the sliding plate 202 moves from one end of the sliding straight line to the end of the sliding curve, the blocking plate 701 is located in front of the first connecting block 5, so that the blocking plate 701 cannot push the first connecting block 5 to move; based on this, in order to solve the above problem, the connecting assembly 7 of this scheme also includes a lifting plate 702 and a lifting unit 8. The lifting unit 8 is arranged at one end of the second connecting block 6, and the lifting plate 702 can be raised and lowered to The output end of the lifting unit 8 is connected, and the lifting plate 702 is located on the other side of the second connecting block 6 relative to the blocking plate 701, and the other end of the lifting plate 702 can lock or release its abutting relationship with the first connecting block 5; by providing the lifting plate 702 and the lifting unit 8, when the slide plate 202 moves from the sliding straight line to the sliding curve, the lifting unit 8 controls the lifting plate 702 to move toward the top, so that the lifting plate 702 and the first connecting block 5 are abutted and fitted; since the lifting plate 702 is located on the other side of the second connecting block 6 relative to the blocking plate 701, that is, along the direction of moving from the sliding straight line to the sliding curve of the second connecting block 6, the lifting plate 702 is located behind the first connecting block 5, therefore, when the second connecting block 6 moves from the sliding straight line to the sliding curve, the second connecting block 6 will drive the lifting plate 702 to slide, and then the lifting plate 702 will drive the first connecting block 5 to slide, so that the automobile sliding door 4 moves from the sliding straight line to the sliding curve.

[0028] Specifically, the lifting unit 8 of this solution includes a lifting frame 801 with a hollow interior, a pushing plate 802, a pushing spring 803 and a limiting structure 9. The lifting frame 801 is vertically arranged on the second connecting block 6. The lifting frame 801 is provided with a lifting slot hole. The pushing plate 802 is slidably arranged in the lifting slot hole. The pushing plate 802 and the lifting plate 702 are connected to each other. The pushing spring 803 is arranged in the lifting slot hole. The two ends of the pushing spring 803 are respectively connected to the pushing plate 802 and the lifting frame 801. The limiting structure 9 is arranged in the lifting frame 801. The limiting structure 9 can lock or release its limiting relationship with the pushing plate 802; through such The arrangement is such that when the push plate 802 moves toward the top of the lifting frame 801, the push plate 802 drives the lifting plate 702 to rise until the push plate 802 rises to a specified height, thereby achieving a contact relationship between the lifting plate 702 and the first connecting block 5; and the function of the limiting structure 9 is that after the push plate 802 rises to a specified height, the limiting structure 9 locks its limiting relationship with the push plate 802, so that the push plate 802 cannot fall toward the bottom of the lifting frame 801, thereby maintaining the push plate 802 at its current height, thereby achieving a contact relationship between the lifting plate 702 and the first connecting block 5. It should be noted that when the limiting structure 9 releases its limiting relationship with the push plate 802, the push plate 802 will move toward the bottom of the lifting frame 801 under the action of the push spring 803, thereby lowering the height of the lifting plate 702, thereby achieving a release of the contact relationship between the lifting plate 702 and the first connecting block 5.

[0029] Specifically, in order to realize the height increase of the push plate 802, the lifting unit 8 of this solution also includes a lifting block 804, which is set on the frame 1, and the front end of the lifting block 804 is tilted, that is, the lifting block 804 is tilted at one end close to the sliding curve, and the vertical height of the lifting block 804 increases gradually in the horizontal sliding direction from the sliding curve to the sliding straight line. The lifting frame 801 is also provided with a connecting slot, which is connected to the lifting slot. The lifting frame 801 passes through the lifting block 804 through the connecting slot to push the bottom of the plate 802. The lifting frame 801 can lock or release its counter-fitting relationship with the lifting block 804; by providing a connecting slot, the lifting frame 801 can pass through the lifting block 804 through the connecting slot during the sliding process. During this period, the bottom of the pushing plate 802 will fit with the inclined end of the lifting block 804. Since the vertical height of the inclined end of the lifting block 804 gradually increases in the sliding direction from the sliding curve to the sliding straight line, the height of the pushing plate 802 will continue to rise until the height of the pushing plate 802 rises to the specified height.

[0030] It should be noted that the lowest height of the inclined end of the lifting block 804 of the present solution is projected onto the sliding rail of the automobile sliding door 4 at the intersection of the sliding curve and the sliding straight line; this is because during the sliding of the automobile sliding door 4 from the sliding curve to the sliding straight line, the sliding direction of the slide plate 202 is a straight line, while the sliding direction of the automobile sliding door 4 on the sliding curve is a curve, which causes the force direction of the slide plate 202 to be different from the force direction of the automobile sliding door 4 on the sliding curve, and the maximum angle between the force direction of the automobile sliding door 4 and the force direction of the slide plate 202 is located when the automobile sliding door 4 slides near the middle of the sliding curve; and the first connecting block 5 connected to the automobile sliding door 4 is only moved under the push of the blocking plate 701. At this time, the first connecting block 5 is not clamped by the blocking plate 701 and the lifting plate 702. Therefore, there will be a blocking plate 70 When the first connecting block 5 is pushed to slide on the sliding curve, especially when the automobile sliding door 4 slides to the middle position of the sliding curve, sliding oscillation may occur, thereby causing the position of the first connecting block 5 to slide relative to the position of the blocking plate 701. If the height of the pushing plate 802 is controlled to rise at this time, there is a possibility that the lifting plate 702 will not be able to fit together with the first connecting block 5. Based on this, in order to avoid sliding oscillation when the automobile sliding door 4 slides near the middle position of the sliding curve, the lifting plate 702 is raised. In this solution, the lowest height of the inclined end of the lifting block 804 is projected onto the sliding rail of the automobile sliding door 4 at the intersection of the sliding curve and the sliding straight line. This arrangement enables the lifting plate 702 to be controlled to rise again after the automobile sliding door 4 slides out of the sliding curve, so that the lifting plate 702 and the first connecting block 5 are connected to each other.

[0031] Specifically, the limiting structure 9 of this solution includes a limiting block 901 and a limiting spring 902. The lifting frame 801 is also provided with a limiting slot, which is connected to the lifting slot. The limiting block 901 can be slidably arranged in the limiting slot, and the two ends of the limiting spring 902 are respectively connected to the limiting block 901 and the lifting frame 801. The top surface height of the limiting block 901 is the same as the top surface height of the lifting block 804. The limiting block 901 can lock or release its limiting relationship with the pushing plate 802; by setting the limiting block 901, the limiting block 901 is located on the side of the pushing plate 802. When the height of the pushing plate 802 does not reach the specified height, the limiting block 901 and the side wall surface of the pushing plate 802 are arranged to fit each other; when the height of the pushing plate 802 reaches the specified height, The limiting block 901 releases its mutual contact with the side wall of the pushing plate 802. The limiting block 901 slides under the action of the limiting spring 902, so that the position of the limiting block 901 is now at the bottom of the pushing plate 802. Since the top surface height of the limiting block 901 is the same as the top surface height of the lifting block 804, at this time, the top surface of the limiting block 901 and the bottom surface of the pushing plate 802 are in contact with each other; it should be noted that the sliding direction of the limiting block 901 and the sliding direction of the pushing plate 802 are arranged perpendicular to each other; therefore, when the lifting frame 801 passes through the lifting block 804, the pushing plate 802 maintains its current height due to the restriction of the limiting block 901 and cannot descend. At this time, the lifting plate 702 is in a state of mutual contact with the first connecting block 5.

[0032] 801 , the unlocking rod 904 can be locked or released by the unlocking block 903. When the unlocking plate 802 is in the unlocking state, the inclined end of the unlocking block 903 is located on the central axis of the unlocking rod 904. As the slide plate 202 slides, the distance between the unlocking block 903 and the unlocking rod 904 gradually decreases until the unlocking rod 904 and the inclined end of the unlocking block 903 are in abutment with each other; as the slide plate 202 continues to move, due to the inclined end structure of the unlocking block 903, the unlocking block 903 moves together with the limiting block 901 in a direction away from the pushing plate 802 until the unlocking rod 904 is inserted into the unlocking space, the limiting block 901 releases its limited matching relationship with the pushing plate 802, and the pushing plate 802 returns to its original position due to the action of the pushing spring 803, and the lifting plate 702 descends following the descent of the pushing plate 802, so that the lifting plate 702 releases its abutment with the first connecting block 5.

[0033] It is also worth mentioning that the unlocking rod 904 of the present solution is arranged at one end of the frame 1 close to the sliding curve, and the end face of the unlocking rod 904 close to the unlocking block 903 is on the same vertical plane as the end face of the lowest height of the inclined end of the lifting block 804. Through such a setting, on the one hand, it can ensure that the automobile sliding door 4 releases the clamping state of the lifting plate 702 and the blocking plate 701 jointly clamping the first connecting block 5 before sliding into the sliding curve, thereby avoiding sliding oscillation when the automobile sliding door 4 enters the sliding curve, causing the first connecting block 5 to cause structural deformation of the lifting plate 702 and the blocking plate 701; on the other hand, it can ensure that after the device drives the automobile sliding door and the car door to engage with each other, the lifting plate 702 releases its counter-fitting relationship with the first connecting block 5, so that the device is convenient for preparing for the next round of testing.

[0034] It should also be noted that after the automobile sliding door 4 slides from the sliding straight line to the sliding curve, the automobile sliding door 4 slides by inertia to achieve the mutual engagement of the automobile sliding door 4 and the vehicle door.

[0035] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A vehicle sliding door strength test and detection device, characterized by: The invention comprises a frame, a sliding assembly and a pulling assembly, wherein the frame is arranged next to the sliding door of the automobile, the sliding assembly comprises a sliding cylinder, a slide plate and a connecting rod, the slide plate is slidably arranged on the frame, the sliding cylinder is arranged on the frame, the output end of the sliding cylinder is connected to the slide plate, and the sliding direction of the slide plate is parallel to the sliding direction of the automobile sliding door; the connecting rod is a rigid rod, and the two ends of the connecting rod are respectively connected to the slide plate and the automobile sliding door, the pulling assembly is arranged on the slide plate, and the output end of the pulling assembly is connected to the handle of the automobile sliding door, so as to release the mutually locked matching relationship between the automobile sliding door and the vehicle door.

2. The vehicle sliding door strength test and detection device according to claim 1, characterized in that: The pulling assembly includes a pulling rope and a pulling cylinder. The pulling cylinder is arranged on the slide. The two ends of the pulling rope are respectively connected to the output end of the pulling cylinder and the handle of the car sliding door. The extension and retraction direction of the output end of the pulling cylinder is perpendicular to the sliding direction of the slide.

3. The vehicle sliding door strength test and detection device according to claim 1, characterized in that: The connecting rod includes a first connecting block and a second connecting block whose central axes are parallel to each other, and a connecting assembly. One end of the first connecting block is connected to the automobile sliding door, and one end of the second connecting block is connected to the slide. One end of the connecting assembly is arranged on the second connecting block, and the other end of the connecting assembly can lock or release its abutting relationship with the first connecting block.

4. The vehicle sliding door strength test device according to claim 3, characterized in that: The connecting assembly includes a blocking plate, one end of which is interconnected with the second connecting block, and the blocking plate is located on the side of the second connecting block close to the place where the car sliding door is locked to the door; when the central axis of the second connecting block and the central axis of the first connecting block coincide with each other, the other end of the blocking plate is abutted against the first connecting block.

5. The vehicle sliding door strength test and detection device according to claim 4, characterized in that: The connecting assembly further includes a lifting plate and a lifting unit. The lifting unit is provided at one end of the second connecting block. The lifting plate is liftably connected to the output end of the lifting unit. The lifting plate is located on the other side of the second connecting block relative to the blocking plate. The other end of the lifting plate can lock or release its abutting relationship with the first connecting block.

6. The vehicle sliding door strength test and detection device according to claim 5, characterized in that: The lifting unit includes a lifting frame with a hollow interior, a pushing plate, a pushing spring and a limiting structure. The lifting frame is vertically arranged on the second connecting block. The lifting frame is provided with a lifting slot hole. The pushing plate can be slidably arranged in the lifting slot hole. The pushing plate and the lifting plate are connected to each other. The pushing spring is arranged in the lifting slot hole. The two ends of the pushing spring are respectively connected to the pushing plate and the lifting frame. The limiting structure is arranged in the lifting frame. The limiting structure can lock or release its limiting relationship with the pushing plate.

7. The vehicle sliding door strength test and detection device according to claim 6, characterized in that: The lifting unit also includes a lifting block, which is arranged on the frame. The front end of the lifting block is inclined, and the vertical height of the lifting block gradually increases from the horizontal sliding direction of the sliding curve to the sliding straight line. The lifting frame is also provided with a connecting slot hole, and the connecting slot hole is connected to the lifting slot hole. The lifting frame passes through the lifting block through the connecting slot hole, and the bottom of the push plate can lock or release its abutting relationship with the lifting block.

8. The vehicle sliding door strength test and detection device according to claim 7, characterized in that: The position where the lowest height of the inclined end of the lifting block is projected onto the sliding rail of the automobile sliding door is located at the intersection of the sliding curve and the sliding straight line.

9. The vehicle sliding door strength test and detection device according to claim 7, characterized in that: The limiting structure includes a limiting block and a limiting spring. The lifting frame is also provided with a limiting slot. The limiting slot is communicated with the lifting slot. The limiting block can be slidably arranged in the limiting slot. The two ends of the limiting spring are respectively connected to the limiting block and the lifting frame. The top surface height of the limiting block is the same as the top surface height of the lifting block. The limiting block can lock or release its limiting relationship with the push plate.

10. The vehicle sliding door strength test device according to claim 9, characterized in that: The limiting structure also includes an unlocking block and an unlocking rod. The unlocking rod is arranged on the frame. The limiting block is slidably arranged to pass through one end of the lifting frame. The unlocking block is arranged on the part of the limiting block extending outside the lifting frame. The unlocking block is tilted near one end of the unlocking rod. Along the sliding direction of the straight line from the sliding straight line to the sliding curve, the horizontal width of the unlocking block gradually decreases. The unlocking rod can lock or release its abutting relationship with the unlocking block.

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