Inner door opening device for durability test of truck door

Abstract

The utility model discloses an inner door opening device for durability test of a truck door, which comprises a fixing plate, a fixing hole is arranged in the middle of the lower end of the fixing plate, the fixing plate is inserted into a handrail mounting hole right above an inner handle of the truck door, and a handrail mounting screw at the inner handle penetrates through the fixing hole to be locked and fixed. The upper end of the fixing plate is connected with an installation piece located on the inner side of the automobile door through a connecting piece, an air cylinder with the telescopic direction close to or away from the automobile door is installed on the installation piece and connected with an air supply system, and a fixed pulley with the vertical axis is further installed on the side, facing the automobile door, of the installation piece. The fixed pulley corresponds to the mounting side of the inner handle, the cylinder corresponds to the free side of the inner handle, the inner handle is sleeved with a sleeve, and the side, away from the vehicle door, of the sleeve is connected with a flexible cable which bypasses the fixed pulley and then is connected with the execution end of the cylinder; the device is simple in structure, low in failure rate, small in occupied space and high in response speed, and energy is saved for gas as power.

Description

Technical Field

[0001] The utility model relates to an auxiliary tool for vehicle door durability testing, in particular to an inner door opening device for truck door durability testing. Background Art

[0002] In vehicle production, door opening and closing durability is a key performance indicator, and therefore is frequently tested. Currently, these tests require a door opening and closing device connected to the interior door handle to simulate the door opening and closing. However, existing door opening and closing devices often have complex mechanical structures, high failure rates, large space requirements, slow response speeds, and require a high power supply, resulting in high costs. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide an inner door opening device for durability testing of truck doors, so as to solve the technical problem of the complex structure of the existing door opening and closing devices.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An inner door opening device for durability testing of truck doors includes a fixing plate with a fixing hole provided in the middle of the lower end of the fixing plate, the fixing plate is inserted into the armrest mounting hole just above the inner door handle and is locked and fixed by the armrest mounting screw at the inner handle passing through the fixing hole, the upper end of the fixing plate is connected to a mounting part located on the inner side of the door through a connecting part, the mounting part is equipped with a cylinder which is telescopic in the direction of extension or contraction towards or away from the door, the cylinder is connected to an air supply system, a fixed pulley with a vertical axis is also installed on the mounting part facing the door side, relative to the inner handle, the fixed pulley corresponds to the mounting side of the inner handle, and the cylinder corresponds to the free side of the inner handle, a cover is provided on the inner handle, a flexible cable is connected to the cover on the side facing away from the door, and the flexible cable is connected to the execution end of the cylinder after passing around the fixed pulley.

[0006] Furthermore, the sleeve includes a semicircular ring, each of which is provided with a connecting ear at both ends. The two connecting ears are connected by a second locking bolt, and a horizontal through hole for the flexible cable to pass through is provided on the screw rod of the second locking bolt near the connecting ear.

[0007] Furthermore, a rubber cushion layer is provided on the inner side of the semicircular ring.

[0008] Furthermore, the actuator end of the cylinder is vertically connected to a first connecting block, the first connecting block is vertically connected to a second connecting block on the side facing the fixed pulley, the second connecting block is vertically connected to a first locking bolt, and the screw rod of the first locking bolt is provided with a horizontal through hole near the second connecting block for the flexible cable to pass through.

[0009] Furthermore, the connecting member includes a connected horizontal plate and a vertical plate, the free end of the horizontal plate is connected to the fixed plate, and the free end of the vertical plate is located at the lower side of the horizontal plate and connected to the mounting member.

[0010] Furthermore, the shaft of the fixed pulley is a screw rod, and nuts are respectively threadedly connected to the upper side and the lower side of the screw rod pulley.

[0011] Furthermore, the mounting member is a vertically arranged mounting plate.

[0012] Furthermore, the air supply system includes an air supply control valve, which is connected to a controller, which is connected to a cylinder start switch, and the controller is also connected to a distance sensor that detects the distance between the cylinder actuator end and the vehicle door.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses an inner door opening device for durability testing of truck doors, which is mainly composed of a fixing plate, a connecting part, a mounting part, a cylinder on the mounting part, a fixed pulley on the mounting part, a sleeve and a flexible rope. The cylinder is extended to pull the inner handle through the flexible rope, and the cylinder is shortened to gradually release the inner handle, simulating the opening or closing of the inner handle by human hands. The utility model has a simple structure, a low failure rate, occupies a small space, has a fast response speed, and is powered by gas, which saves energy.

[0015] The provision of a locking bolt with a through hole facilitates the securing of the flexible cable. The provision of a rubber cushion prevents damage to the interior door handle. The position of the pulley in the fixed pulley is controlled by a nut, allowing the fixed pulley to be adjusted in height.

[0016] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a three-dimensional diagram of the utility model.

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0020] Figure 3 This is a three-dimensional diagram from another perspective of the present invention.

[0021] Figure 4 for Figure 1Schematic diagram of the connection between the middle fixed plate, horizontal plate, vertical plate and mounting plate.

[0022] In the figure: fixing plate 1, fixing hole 2, car door 3, inner handle 4, armrest mounting screw 5, horizontal plate 6, vertical plate 7, mounting plate 8, cylinder 9, first connecting block 10, second mounting block 11, first locking bolt 12, fixed pulley 13, semicircular ring 14, connecting ear 15, second locking bolt 16, through hole 17, wire rope 18. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention and are not intended to limit the scope of protection of the present invention.

[0024] like Figure 1-4As shown, the inner door opening device for truck door durability testing includes a fixing plate 1 with a fixing hole 2 provided in the middle of the lower end of the fixing plate 1. The armrest above the inner handle 4 of the door 3 is removed in advance, leaving an armrest mounting hole directly above the inner handle 4. The armrest mounting screws 5 on the inner handle 4 are retained. The fixing plate 1 is inserted into the armrest mounting hole, and the armrest mounting screws 5 are passed through the fixing holes 2 on the fixing plate 1 to lock the fixing plate 1. The upper end of the fixing plate 1 is vertically connected to a horizontal plate 6, which extends into the vehicle. The free end of the horizontal plate 6 is connected to a vertical plate 7, which extends downward. The lower end of the vertical plate 7 is connected to a mounting plate 8, which is parallel to the door 3. The mounting plate 8 is long and forms an inverted T-shape with the vertical plate 7. A cylinder 9 is vertically provided on the mounting plate 8 corresponding to the free side of the inner handle 4 of the vehicle door 3. The cylinder barrel of the cylinder 9 is fixedly arranged on the side of the mounting plate 8 facing away from the vehicle door 3. The piston rod of the cylinder 9 passes through the mounting plate 8. The free end of the piston rod is the cylinder actuator end, and the cylinder actuator end is vertically connected to the first connecting block 10. The first connecting block 10 is vertically connected to the second mounting block 11 on the mounting side corresponding to the inner handle 4 of the vehicle door 3. The second mounting block 11 extends toward the vehicle door 3. A first locking bolt 12 is vertically connected to the second mounting block 11. A through hole is horizontally provided on the screw rod of the first locking bolt 12 near the second mounting block 11. The air cylinder 9 is connected to the air tank via an air pipe and a pump. The air pipe is connected to an inflation control valve, which is connected to a controller. The controller is connected to a cylinder start switch. The controller is also connected to a distance sensor. The distance sensor is mounted on the first connecting block 10 and is used to detect the distance between the first connecting block 10 and the vehicle door 3. When the cylinder start switch is pressed, the controller controls the extension of the air cylinder 9. When the distance sensor detects that the distance reaches a set value, the controller controls the contraction of the air cylinder 9. When the distance contracts to the set distance, the controller controls the extension of the air cylinder 9. A fixed pulley 13 is provided on the mounting plate 8 on the side corresponding to the mounting of the interior handle 4 of the vehicle door 3. The axis of the fixed pulley 13 is vertical, and the shaft of the fixed pulley 13 is a screw. Nuts are threaded onto the screws on the upper and lower sides of the fixed pulley 13, respectively, to adjust the height of the fixed pulley 13. A cover is provided on the inner handle 4 of the car door 3, and the cover includes a hard semicircular ring 14. Connecting ears 15 are respectively provided at both ends of the semicircular ring 14. The two connecting ears 15 are connected by a second locking bolt 16. The connection position of the two connecting ears 15 is located on the side of the inner handle 4 away from the car door 3. A rubber pad is provided on the inner side of the semicircular ring 14 to prevent the hard semicircular ring 14 from damaging the inner handle 4 of the car door 3. A through hole 17 is horizontally provided on the second locking bolt 16 near the connecting ear 15. The through hole 17 corresponds to the free side of the inner handle 4 close to the semicircular ring 14 and the installation side of the inner handle 4 away from the semicircular ring 14. The through hole 17 of the second locking bolt 16 on the cover, the through hole of the first locking bolt 12 on the second connecting block 11 and the groove of the fixed pulley 13 are located on the same horizontal plane.One end of the wire rope 18 passes through the through hole 17 of the second locking bolt 16 on the sleeve and is locked on the connecting ear 15 by the second locking bolt 16, and the other end passes around the fixed pulley 13 and passes through the through hole of the first locking bolt 12 on the second connecting block 11 and is locked on the second connecting block 11 by the first locking bolt 12.

[0025] When the device is in use, press the cylinder start switch, the controller controls the cylinder 9 to extend, and pulls the inner handle 4 of the car door 3 through the wire rope 18. The distance sensor detects the extended length of the cylinder 9. When the set value is reached, that is, the inner handle 4 is opened, the controller controls the cylinder 9 to shorten and gradually release the inner handle 4. When the set value is reached, the inner handle 4 is completely released, simulating a person opening or closing the inner handle of the car door.

[0026] The device is mainly composed of a fixed plate 1, a horizontal plate 6, a vertical plate 7, a mounting plate 8, a cylinder 9, a fixed pulley 13, a sleeve and a wire rope 18. It has a simple structure, a low failure rate, occupies a small space, has a fast response speed, is powered by gas, and saves energy.

[0027] In this device, the horizontal plate 6 and the vertical plate 7 can be replaced by other structures, such as special-shaped parts. The structure of the sleeve can be a sleeve. The wire rope 18 can be replaced by a chain or the like.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. Inward opening door device for truck door durability testing, characterized by: The invention comprises a fixing plate (1), wherein a fixing hole (2) is provided at the middle of the lower end of the fixing plate (1), the fixing plate (1) is inserted into the armrest mounting hole just above the inner handle (4) of the vehicle door (3) and is locked and fixed by the armrest mounting screw (5) at the inner handle (4) passing through the fixing hole (2), the upper end of the fixing plate (1) is connected to a mounting member located on the inner side of the vehicle door (3) through a connecting member, the mounting member is provided with a cylinder (9) whose telescopic direction is close to or away from the vehicle door, the cylinder (9) is connected to an air supply system, the mounting member is further provided with a fixed pulley (13) with a vertical axis on the side facing the vehicle door (3), the fixed pulley (13) corresponds to the mounting side of the inner handle (4) relative to the inner handle (4), and the cylinder (9) corresponds to the free side of the inner handle (4), the inner handle (4) is provided with a sleeve, the sleeve is connected with a flexible cable on the side facing away from the vehicle door (3), and the flexible cable is connected to the execution end of the cylinder (9) after passing around the fixed pulley (13).

2. The inner opening door device for truck door durability testing according to claim 1, characterized in that: The sleeve comprises a semicircular ring (14), and connecting ears (15) are respectively provided at both ends of the semicircular ring (14). The two connecting ears (15) are connected by a second locking bolt (16), and a horizontal through hole (17) for the flexible cable to pass through is provided on the screw rod of the second locking bolt (16) near the connecting ear (15).

3. The inner opening door device for truck door durability testing according to claim 2, characterized in that: A rubber cushion layer is provided on the inner side of the semicircular ring (14).

4. The inward opening door device for truck door durability testing according to claim 1, characterized in that: The execution end of the cylinder (9) is vertically connected to a first connection block (10), and the first connection block (10) is vertically connected to a second connection block (11) on a side facing the fixed pulley (13). The second connection block (11) is vertically connected to a first locking bolt (12), and a screw rod of the first locking bolt (12) is provided with a horizontal through hole for a flexible cable to pass through near the second connection block (11).

5. The inner opening door device for truck door durability testing according to claim 1, characterized in that: The connecting member comprises a connected transverse plate (6) and a vertical plate (7), wherein the free end of the transverse plate (6) is connected to the fixed plate (1), and the free end of the vertical plate (7) is located on the lower side of the transverse plate (6) and connected to the mounting member.

6. The inward opening door device for truck door durability testing according to claim 1, characterized in that: The shaft of the fixed pulley (13) is a screw rod, and nuts are respectively threadedly connected to the upper side and the lower side of the screw rod pulley.

7. The inward opening door device for truck door durability testing according to claim 1, characterized in that: The mounting member is a vertically arranged mounting plate (8).

8. The inward opening door device for truck door durability testing according to any one of claims 1 to 7, characterized in that: The air supply system includes an air supply control valve, which is connected to a controller, which is connected to a cylinder start switch, and the controller is also connected to a distance sensor that detects the distance between the cylinder execution end and the vehicle door.

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