A vehicle electric tailgate cable pre-tightening and force value detection device

Abstract

The present invention discloses a pre-tightening and force detection device for an electric tailgate cable, including a pre-tightening mechanism for pre-tightening the tailgate cable, and a force detection mechanism installed in front of the pre-tightening mechanism for detecting the force value when the tailgate cable connector is broken. Before the cable is loaded on a vehicle for use, the present invention compresses the cable sleeve and stretches the wire rope, that is, the change in the exposed length A+B △(A+B) of the cable during use is eliminated in advance. This change is due to the change in the sleeve compression, the reduction in the matching gap between the sleeve and the pipe cap, and the change in the wire rope stretching. These factors are superimposed together. The change is eliminated before use to ensure the accuracy of opening and closing the tailgate, improve the customer experience, and can also detect the force value of the cable connector. The structure is simple, the operation is convenient, and the practicability is strong.

Description

Technical Field

[0001] The invention relates to the technical field of automobile electric tailgate cable pulling wires, in particular to an automobile electric tailgate cable pulling wire pre-tightening and force value detection device. Background Art

[0002] The pull wire is mainly composed of a steel wire rope, a zinc alloy joint, a pipe cap, a sleeve, etc. Among them, the curved pipe cap, the spring, the joint and the lock end are connected to the electric tailgate opening and closing function, and the straight pipe cap and the joint are connected to the motor end to provide the power to open and close the door. The tailgate is opened and closed, and the entire process is transmitted through the steel wire rope, and the length A+B of the steel wire rope exposed from the sleeve affects the effective travel of the tailgate movement. As the tailgate is continuously opened and closed, the sleeve of the pull wire is in a compressed state, and the steel wire rope is in a stretched state. For example, when it is used 5W times, the steel wire rope has a very small change in length due to structural reasons and can be ignored. Instead, the sleeve is always in a compressed state, the sleeve will be shorter, and the clearance between the sleeve and the pipe cap will be reduced, so the overall length A+B of the pull wire will be longer, which will affect the tailgate clearance. The tailgate cannot be closed tightly, affecting the experience of the end customer. Therefore, a pull wire A+B pre-tightening and force value detection device is needed to eliminate this adverse effect. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle electric tailgate cable pre-tightening and force value detection device in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A vehicle electric tailgate cable pretensioning and force detection device comprises a pretensioning mechanism for pretensioning the tailgate cable, and a force detection mechanism installed in front of the pretensioning mechanism for detecting the force value when the tailgate cable connector is broken, and also comprises a fixing plate installed below the pretensioning mechanism and the force detection mechanism for supporting the installation.

[0006] Preferably: the force detection mechanism includes a control panel and a first mounting plate, the first mounting plate is installed on the upper end of the fixed plate, the first mounting plate and the fixed plate are formed in one piece, the control panel is installed on the rear end of the first mounting plate, the control panel is connected to the first mounting plate by screws, a second mounting plate is installed in front of the first mounting plate, the second mounting plate is glued to the first mounting plate, a travel limit block is installed on the second mounting plate, the travel limit block is fastened to the second mounting plate by a nut, a cylinder is installed above the travel limit block, the cylinder is connected to the second mounting plate by a fastening nut, and the cylinder is connected to the second mounting plate by a fastening nut. A stroke slider is installed at the lower end of the cylinder, and the stroke slider is connected to the cylinder by screws. Limit plates are installed at the front and rear of the stroke slider, and the limit plates are slidably connected to the stroke slider, and the limit plates are connected to the fixed plate by screws. A block seat is installed on one side of the cylinder at the upper end of the stroke slider, and the block seat is connected to the stroke slider by screws. A first joint block is installed on the upper end of the block seat, and a first elbow block is installed on one side of the first joint block. The first joint block is connected to one end of the elbow pull wire, and the other end of the elbow pull wire is connected to the second joint block, and the second joint block is connected to the fixed plate by screws.

[0007] Preferably: the pre-tightening mechanism includes a control panel and a first mounting plate, the first mounting plate is mounted on the upper end of the fixing plate, the first mounting plate and the fixing plate are integrally formed, the control panel is mounted on the front end of the first mounting plate, the control panel is connected to the first mounting plate by screws, a second mounting plate is mounted behind the first mounting plate, the second mounting plate is adhesively connected to the first mounting plate, a travel limit block is mounted on the second mounting plate, the travel limit block is fastened to the second mounting plate by a nut, a cylinder is mounted above the travel limit block, the cylinder is connected to the second mounting plate by a fastening nut, and a travel slider is mounted on the lower end of the cylinder The travel slider is connected to the cylinder by screws, and a limit plate is installed at the front and rear of the travel slider, and the limit plate is slidably connected to the travel slider, and the limit plate is connected to the fixed plate by screws. The upper end of the travel slider is installed with a block seat on one side of the cylinder, and the block seat is connected to the travel slider by screws. A second elbow block is installed on the upper end of the fixed plate on one side of the block seat, and the second elbow block is glued to the fixed plate, and a bakelite board is installed on the second elbow block, and an elbow pull wire is installed on the bakelite board, and a support block is installed at the lower end of the bakelite board behind the second elbow block, and the support block is glued to the fixed plate.

[0008] Preferably, the first elbow stopper is connected to the fixing plate by screws.

[0009] Preferably: the bakelite board is connected to the second elbow stopper via screws, and the support block is connected to the bakelite board via screws.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] Before the cable is loaded on the vehicle for use, the cable sleeve is compressed and the wire rope is stretched, that is, the change in exposed length A+B △(A+B) during use of the cable is eliminated in advance. This change is due to the change in compression of the sleeve, the reduction in the fitting gap between the sleeve and the pipe cap, and the change in stretching of the wire rope. These factors are superimposed together. The change is eliminated before use to ensure the accuracy of opening and closing the tailgate and enhance customer experience. The force value of the cable joint can also be tested. It has a simple structure, is easy to operate, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a structural schematic diagram of a vehicle electric tailgate cable pre-tightening and force value detection device according to the present invention;

[0014] Figure 2 It is a top view of a vehicle electric tailgate cable pre-tightening and force value detection device according to the present invention;

[0015] Figure 3 It is a structural schematic diagram of a force value detection mechanism of a vehicle electric tailgate cable pre-tightening and force value detection device according to the present invention;

[0016] Figure 4 It is a structural schematic diagram of a pre-tightening mechanism of a vehicle electric tailgate cable pre-tightening and force value detection device according to the present invention;

[0017] Figure 5 It is a first structural schematic diagram of an elbow cable of a vehicle electric tailgate cable pre-tightening and force value detection device according to the present invention;

[0018] Figure 6 It is a second structural schematic diagram of an elbow cable of a vehicle electric tailgate cable pre-tightening and force value detection device described in the present invention.

[0019] The following are the descriptions of the reference numerals:

[0020] 1. Fixed plate; 2. Control panel; 3. First mounting plate; 4. Second mounting plate; 5. Travel limit block; 6. Cylinder; 7. Limit plate; 8. Travel slider; 9. Block seat; 10. First joint block; 11. First elbow block; 12. Elbow pull wire; 13. Second joint block; 14. Second elbow block; 15. Bakelite board; 16. Support block; 17. Preload mechanism; 18. Force detection mechanism. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 6 As shown, a vehicle electric tailgate cable pretensioning and force detection device includes a pretensioning mechanism 17 for pretensioning the tailgate cable, and a force detection mechanism 18 installed in front of the pretensioning mechanism 17 for detecting the force value when the tailgate cable connector is broken, and also includes a fixing plate 1 installed below the pretensioning mechanism 17 and the force detection mechanism 18 for supporting the installation.

[0025] Preferably: the force detection mechanism 18 includes a control panel 2 and a first mounting plate 3. The first mounting plate 3 is installed on the upper end of the fixed plate 1. The first mounting plate 3 and the fixed plate 1 are integrally formed. The control panel 2 is installed on the rear end of the first mounting plate 3. The control panel 2 is connected to the first mounting plate 3 by screws. A second mounting plate 4 is installed in front of the first mounting plate 3. The second mounting plate 4 is glued to the first mounting plate 3. A travel limit block 5 is installed on the second mounting plate 4. The travel limit block 5 is fastened to the second mounting plate 4 by nuts. A cylinder 6 is installed above the travel limit block 5. The cylinder 6 is connected to the second mounting plate 4 by a fastening nut. A travel slider 8 is installed at the lower end of the cylinder 6. The travel slider 8 is connected to the cylinder 6. The travel slider 8 is connected by screws, and a limit plate 7 is installed on the front and rear sides thereof, and the limit plate 7 is slidably connected to the travel slider 8, and the limit plate 7 is connected to the fixed plate 1 by screws, and a block seat 9 is installed on the upper end of the travel slider 8 on one side of the cylinder 6, and the block seat 9 is connected to the travel slider 8 by screws, and a first joint block 10 is installed on the upper end of the block seat 9, and a first elbow block 11 is installed on one side of the first joint block 10, and the first joint block 10 is connected to one end of the elbow pull wire 12, and the other end of the elbow pull wire 12 is connected to the second joint block 13, and the second joint block 13 is connected to the fixed plate 1 by screws; the preload mechanism 17 includes a control panel 2, a first mounting plate 3, and a first mounting plate 1 is installed on the upper end of the fixed plate 1 Plate 3, the first mounting plate 3 and the fixed plate 1 are integrally formed, a control panel 2 is installed at the front end of the first mounting plate 3, the control panel 2 is connected to the first mounting plate 3 by screws, a second mounting plate 4 is installed at the rear of the first mounting plate 3, the second mounting plate 4 is glued to the first mounting plate 3, a travel limit block 5 is installed on the second mounting plate 4, the travel limit block 5 is fastened to the second mounting plate 4 by nuts, a cylinder 6 is installed above the travel limit block 5, the cylinder 6 is connected to the second mounting plate 4 by fastening nuts, a travel slider 8 is installed at the lower end of the cylinder 6, the travel slider 8 is connected to the cylinder 6 by screws, a limit plate 7 is installed at the front and rear of the travel slider 8, the limit plate 7 is slidably connected to the travel slider 8, the limit plate 7 is connected to the fixed plate 1 by screws, the upper end of the stroke slider 8 is installed with a block seat 9 on one side of the cylinder 6, the block seat 9 is connected to the stroke slider 8 by screws, the upper end of the fixed plate 1 is installed with a second elbow block 14 on one side of the block seat 9, the second elbow block 14 is glued to the fixed plate 1, a bakelite board 15 is installed on the second elbow block 14, an elbow pull wire 12 is installed on the bakelite board 15, a support block 16 is installed at the lower end of the bakelite board 15 behind the second elbow block 14, and the support block 16 is glued to the fixed plate 1; the first elbow block 11 is connected to the fixed plate 1 by screws; the bakelite board 15 is connected to the second elbow block 14 by screws, and the support block 16 is connected to the bakelite board 15 by screws.

[0026] The working principle and use method of the present invention are as follows: turn on the power switch of the equipment, set parameters on the control panel 2, such as: the air pressure value of the cylinder 6, the movement frequency, the number of movements, etc., adjust the equipment travel limit block 5 to ensure the accuracy of the position of the travel slider 8 of the cylinder 6 during use, and also protect the equipment, place the elbow pull wire 12 on the bakelite board 15, the end face of the elbow cap on the elbow pull wire 12 is close to the second elbow stopper 14, and the joint on the elbow pull wire 12 is hung in the wire groove of the stopper seat 9. Under the action of the cylinder 6, the elbow pull wire 12 is subjected to a force F, such as F=1000N, and runs back and forth N, such as N=5 cycles, each cycle is 1S, thereby achieving the purpose of pre-tightening the elbow pull wire 12;

[0027] The elbow pull cable 12 is not as good as the straight pull cable in actual production for detecting the force value of the joints at both ends of the wire rope. In order to ensure that the force value of the joints meets the customer's requirements 100%, it is necessary to perform all the force value tests on the pull cable, turn on the power switch of the equipment, set parameters on the control panel 2, such as: the air pressure value of the cylinder 6, the movement frequency, the number of movements, etc., adjust the equipment stroke limit block 5 to ensure the accuracy of the position of the stroke slider 8 of the cylinder 6 during use, and also protect the equipment. The joint on the elbow pull cable 12 is hung in the wire groove of the block seat 9, and the other end joint is placed in the wire groove of the second joint block 13. The elbow on the elbow pull cable 12 is close to the first elbow block 11. The joints at both ends of the wire rope of the elbow pull cable 12 are subjected to a force F, such as F=1500N, under the action of the cylinder 6. After being subjected to force once, observe whether the joint is broken, thereby detecting the force value of the pull cable.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A vehicle electric tailgate cable pre-tightening and force value detection device, characterized in that: It comprises a pre-tightening mechanism (17) for pre-tightening the tailgate cable, and a force detection mechanism (18) installed in front of the pre-tightening mechanism (17) for detecting the force value when the tailgate cable connector is broken, and also comprises a fixing plate (1) installed below the pre-tightening mechanism (17) and the force detection mechanism (18) for supporting the installation; The force value detection mechanism (18) comprises a control panel (2) and a first mounting plate (3). The first mounting plate (3) is mounted on the upper end of the fixed plate (1). The first mounting plate (3) and the fixed plate (1) are integrally formed. The control panel (2) is mounted on the rear end of the first mounting plate (3). The control panel (2) and the first mounting plate (3) are connected by screws. A second mounting plate (4) is mounted in front of the first mounting plate (3). The second mounting plate (4) is connected to the first mounting plate (3) by adhesive bonding. A travel limit block (5) is mounted on the second mounting plate (4). The travel limit block (5) is fastened to the second mounting plate (4) by a nut. A cylinder (6) is mounted above the travel limit block (5). The cylinder (6) is connected to the second mounting plate (4) by a fastening nut. The lower end of the cylinder (6) is mounted A stroke slider (8) is provided, the stroke slider (8) is connected to the cylinder (6) by screws, a limit plate (7) is installed at the front and rear of the stroke slider (8), the limit plate (7) is slidably connected to the stroke slider (8), the limit plate (7) is connected to the fixed plate (1) by screws, a stopper seat (9) is installed at the upper end of the stroke slider (8) on one side of the cylinder (6), the stopper seat (9) is connected to the stroke slider (8) by screws, a first joint stopper (10) is installed at the upper end of the stopper seat (9), a first elbow stopper (11) is installed on one side of the first joint stopper (10), the first joint stopper (10) is connected to one end of an elbow pull wire (12), the other end of the elbow pull wire (12) is connected to a second joint stopper (13), and the second joint stopper (13) is connected to the fixed plate (1) by screws; The preload mechanism (17) comprises a control panel (2) and a first mounting plate (3). The first mounting plate (3) is mounted on the upper end of the fixing plate (1). The first mounting plate (3) and the fixing plate (1) are integrally formed. The control panel (2) is mounted on the front end of the first mounting plate (3). The control panel (2) and the first mounting plate (3) are connected by screws. A second mounting plate (4) is mounted behind the first mounting plate (3). The second mounting plate (4) is adhesively connected to the first mounting plate (3). A stroke limit block (5) is mounted on the second mounting plate (4). The stroke limit block (5) and the second mounting plate (4) are fastened with a nut. A cylinder (6) is mounted above the stroke limit block (5). The cylinder (6) is connected to the second mounting plate (4) by a fastening nut. A stroke slider (8) is mounted on the lower end of the cylinder (6). The stroke slider (8) ) is connected to the cylinder (6) by screws, a limit plate (7) is installed at the front and rear of the stroke slider (8), the limit plate (7) is slidably connected to the stroke slider (8), the limit plate (7) is connected to the fixed plate (1) by screws, the upper end of the stroke slider (8) is installed with a stopper seat (9) on one side of the cylinder (6), the stopper seat (9) is connected to the stroke slider (8) by screws, the upper end of the fixed plate (1) is installed with a second elbow stopper (14) on one side of the stopper seat (9), the second elbow stopper (14) is glued to the fixed plate (1), the second elbow stopper (14) is installed with an electric board (15), the elbow pull wire (12) is installed on the electric board (15), and the lower end of the electric board (15) is installed with a support block (16) behind the second elbow stopper (14), and the support block (16) is glued to the fixed plate (1).

2. The automobile electric tailgate cable pre-tightening and force value detection device according to claim 1, characterized in that: The first elbow stopper (11) is connected to the fixing plate (1) via screws.

3. The automobile electric tailgate cable pre-tightening and force value detection device according to claim 2, characterized in that: The bakelite board (15) is connected to the second elbow stopper (14) via screws, and the support block (16) is connected to the bakelite board (15) via screws.

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