Vehicle-mounted rotary table auxiliary device
Through the mechanical structure of the vehicle-mounted turntable auxiliary device, the locking is achieved using components such as handles, screws, locking pins, etc., the stability of the vehicle-mounted turntable in vibration and impact environments is solved, the failure rate and weight are reduced, and the locking reliability and durability are improved.
Patent Information
- Application Number
- CN202421862692.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing vehicle-mounted turntable locking devices are insufficient in vibration and impact environments, and have problems such as high failure rate, high maintenance difficulty, large temperature and air pressure difference, and excessive weight.
The vehicle-mounted rotary table auxiliary device adopts a mechanical structure, including azimuth fixer and locking mechanism, uses handles, screws, locking pins, mounting seats and proximity lighting sets to achieve locking through mechanical means, reducing parts and motor driving equipment, and enhancing stability and environmental adaptability.
It realizes stable operation in harsh environments, reduces failure rate, simplifies maintenance, reduces product weight, reduces costs, and improves lock reliability and durability.
Smart Images
Figure CN223059135U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a vehicle-mounted turntable auxiliary device and belongs to the technical field of vehicle-mounted turntable locking. Background Art
[0002] The turntable position fixer is a vehicle-mounted turntable auxiliary device. It is a locking mechanism that ensures that the turntable is prevented from rotating relative to the chassis due to vibration and impact when the car is driving. The position fixer is a force-bearing part and must have strong stability. On the basis of meeting the design requirements, it should have a low failure rate, a long service life, and stable operation under various environments. In the past, locking devices often used motors, hydraulics, pneumatics and other structures. Some of these structures have a short service life, some have complex structures and are difficult to maintain. Some are not suitable for environments with large temperature and pressure differences. Some are heavy and cannot be used under weight restrictions. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a vehicle-mounted turntable auxiliary device. The vehicle-mounted turntable auxiliary device has few parts, a mechanical structure, can withstand large radial forces, is light in weight, and has strong environmental adaptability.
[0004] The utility model is realized through the following technical solutions.
[0005] The utility model provides a vehicle-mounted turntable auxiliary device, including an orientation fixer; the orientation fixer is installed close to the turntable, a locking mechanism is installed at a position on the turntable directly opposite to the orientation fixer, a handle is provided on the orientation fixer, a groove is provided on the side of the handle, and a front end structure of a blocking shaft of the locking mechanism matches the groove of the handle; the handle is threadedly installed on a screw rod, a middle and lower part of the screw rod is sleeved in a locking pin and the screw and the locking pin are threadedly matched, the screw and the locking pin are both sleeved in a mounting seat, a chassis is fixed below the mounting seat, and a locking hole is provided on the chassis directly opposite to the locking pin.
[0006] A proximity switch group is fixedly mounted on the bottom of the mounting seat for detecting the position of the locking pin.
[0007] The proximity switch group includes a proximity switch mounting base, which is fixed to the mounting base, and an upper proximity switch and a lower proximity switch are respectively fixed on the proximity switch mounting base. A sensor sheet is fixed on the outer wall of the locking pin at positions opposite to the upper proximity switch and the lower proximity switch. The height of the upper proximity switch satisfies that the sensor sheet is opposite to the upper proximity switch when the locking pin is at the highest position, and the height of the lower proximity switch satisfies that the sensor sheet is opposite to the lower proximity switch when the locking pin is at the lowest position.
[0008] The induction piece is a "Z"-shaped structure, and in vertical projection, the induction piece exceeds the inner diameter of the mounting seat.
[0009] The induction sheet is fixed to the lock pin through a sleeve, and the sleeve is sleeved and fixed on the lock pin.
[0010] A nut is fixed on the side of the mounting base, and a stud passes through the nut and is in threaded fit with the nut. The height of the stud is such that when the locking pin is in the lowest position, the stud is at the top surface of the locking pin to limit the upward movement of the locking pin.
[0011] The top of the mounting base is sealed by an upper end cover, and a screw rod passes through the upper end cover; the bottom of the mounting base is sealed by a lower end cover, and the locking pin passes through the lower end cover; there is a protruding stepped structure on the screw rod above the locking pin, and an upper felt pad is installed at the position where the bottom surface of the upper end cover faces the top of the stepped structure for buffering.
[0012] A copper sheet is sleeved outside the stepped structure of the locking pin, and a copper ring is installed on the bottom surface of the stepped structure.
[0013] A lower felt pad for buffering is tightly attached to the locking pin on the top surface of the lower end cover.
[0014] The locking mechanism includes a support and a cover plate that form a closed housing. A stop shaft passes through the support and the cover plate. Inside the support and the cover plate, a spring is sleeved on the stop shaft to elastically reset the stop shaft. There are a front stop piece and a rear stop piece at both ends of the spring respectively; a pull ring is connected to the rear end of the stop shaft; there is a cross-shaped stop pin on the stop shaft, and a cross-shaped slot is provided on the cover plate so that the stop pin can be inserted.
[0015] The beneficial effects of the present utility model are as follows: simple structure, few parts, safe and reliable locking method, low failure rate, low cost, convenient for maintenance, without driving devices such as motors, greatly reducing the product quality, and applicable to harsh conditions such as harsh environments. Brief Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of at least one embodiment of the present utility model;
[0017] Figure 2 is Figure 1 the internal structural diagram of the azimuth fixer in
[0018] Figure 3 is Figure 2 the schematic structural diagram in another working state;
[0019] Figure 4 is Figure 1 the top view of
[0020] Figure 5 is Figure 1 the internal structural diagram of the locking mechanism in
[0021] Figure 6 is Figure 1 the schematic structural diagram of another perspective of the locking mechanism in
[0022] Figure 7 isFigure 3 Schematic diagram of the structure of the induction sheet.
[0023] In the figure: 1 - azimuth fixator, 2 - locking mechanism, 3 - chassis, 4 - proximity switch group, 5 - turntable, 11 - screw rod, 12 - handle, 13 - mounting seat, 14 - locking pin, 15 - upper end cover, 16 - lower end cover, 17 - sleeve, 18 - stud, 19 - nut, 111 - copper sheet, 112 - lower felt pad, 113 - copper ring, 114 - upper felt pad, 21 - stop shaft, 22 - support, 23 - spring, 24 - rear stop piece, 25 - front stop piece, 26 - stop pin, 27 - cover plate, 28 - pull ring, 31 - locking hole, 41 - proximity switch mounting seat, 42 - upper proximity switch, 43 - lower proximity switch, 44 - induction sheet. Specific embodiments
[0024] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.
[0025] Embodiment 1
[0026] As Figures 1 to 7 shown, a vehicle-mounted turntable auxiliary device includes an azimuth fixator 1; the azimuth fixator 1 is installed close to the turntable 5, a locking mechanism 2 is installed at a position on the turntable 5 directly opposite to the azimuth fixator 1, a handle 12 is provided on the azimuth fixator 1, a groove is provided on the side of the handle 12, and the front end structure of the stop shaft 21 of the locking mechanism 2 is matched with the groove of the handle 12; the handle 12 is installed on the screw rod 11 in a threaded fit, the middle and lower part of the screw rod 11 is sleeved in the locking pin 14 and the screw rod 11 and the locking pin 14 are in threaded fit, both the screw rod 11 and the locking pin 14 are sleeved in the mounting seat 13, a chassis 3 is fixed below the mounting seat 13, and a locking hole 31 is provided at a position on the chassis 3 directly opposite to the locking pin 14.
[0027] Embodiment 2
[0028] Based on Embodiment 1, a proximity switch group 4 is installed and fixed at the bottom of the mounting seat 13 for detecting the position of the locking pin 14.
[0029] Furthermore, the proximity switch group 4 includes a proximity switch mounting seat 41, the proximity switch mounting seat 41 is fixed to the mounting seat 13, an upper proximity switch 42 and a lower proximity switch 43 are respectively fixed on the proximity switch mounting seat 41, an induction sheet 44 is fixed at a position on the outer wall of the locking pin 14 directly opposite to the upper proximity switch 42 and the lower proximity switch 43, the height of the upper proximity switch 42 is such that when the locking pin 14 is in the highest position, the induction sheet 44 is directly opposite to the upper proximity switch 42, and the height of the lower proximity switch 43 is such that when the locking pin 14 is in the lowest position, the induction sheet 44 is directly opposite to the lower proximity switch 43.
[0030] Furthermore, the induction sheet 44 has a "Z" - shaped structure, and in the vertical projection, the induction sheet 44 extends beyond the inner diameter of the mounting seat 13.
[0031] Further, the induction piece 44 is fixed to the locking pin 14 through a sleeve 17, and the sleeve 17 is sleeved and fixed on the locking pin 14.
[0032] Embodiment 3
[0033] Based on Embodiment 1, a nut 19 is fixed to the side of the mounting seat 13, a stud 18 passes through the nut 19 and is in threaded cooperation with the nut 19, and the height of the stud 18 is such that when the locking pin 14 is in the lowest position, the stud 18 is at the top surface of the locking pin 14 to limit the upward movement of the locking pin 14.
[0034] Further, the top of the mounting seat 13 is sealed by an upper end cap 15, and the screw rod 11 passes through the upper end cap 15; the bottom of the mounting seat 13 is sealed by a lower end cap 16, and the locking pin 14 passes through the lower end cap 16; there is a protruding stepped structure on the screw rod 11 above the locking pin 14, and an upper felt pad 114 is installed at the position where the bottom surface of the upper end cap 15 faces the top of the stepped structure for buffering.
[0035] Further, a copper sheet 111 is sleeved on the outside of the stepped structure of the locking pin 14, and a copper ring 113 is installed on the bottom surface of the stepped structure.
[0036] Further, a lower felt pad 112 is installed on the top surface of the lower end cap 16 in close contact with the locking pin 14 for buffering.
[0037] Embodiment 4
[0038] Based on Embodiment 1, the locking mechanism 2 includes a support 22 and a cover plate 27 that form a closed housing, a stop shaft 21 passes through the support 22 and the cover plate 27, and a spring 23 is sleeved on the stop shaft 21 in the inner cavities of the support 22 and the cover plate 27 to elastically reset the stop shaft 21. There are a front stop piece 25 and a rear stop piece 24 at both ends of the spring 23; a pull ring 28 is connected to the rear end of the stop shaft 21; there is a cross-shaped stop pin 26 on the stop shaft 21, and there is a cross-shaped slot on the cover plate 27 such that the stop pin 26 can be inserted.
[0039] Embodiment 5
[0040] Based on the above embodiments, the mounting base of the orientation fixator is placed on the side of the turntable. The handle is connected to the upper end of the screw rod through threads, and a setscrew is used to prevent relative rotation. The handle has evenly distributed large grooves and small grooves. The upper end of the screw rod is tapped with metric threads, and the lower end is tapped with T-shaped threads. The copper ring on the conical surface in the middle is placed on the conical surface of the copper ring on the mounting base, and the copper ring is placed on the clamping seat of the mounting base. The top of the locking pin has a groove for placing the copper sleeve, and is connected and positioned by inserting 3 pins. They are all placed inside the mounting base. The inner part of the copper sleeve is tapped with T-shaped threads and engages with the screw rod. There is a groove slide on the outer surface of one side of the locking pin. During assembly, the stud is placed in the groove, and the stud is locked and fixed on the mounting base with a nut. Adjust the position of the stud so that it can effectively limit the rotation of the locking pin but does not contact the locking pin. The diameter of the groove slide on the upper part of the locking pin is larger than the diameter of the lower part of the locking pin to ensure that the stud is always in the slide when the locking pin moves up and down. The upper end cover and the lower end cover are installed on the upper and lower parts of the mounting base, and felt pads are installed near the upper end cover and the lower end cover to play a role in dust and sand prevention. The copper sheet is installed between the upper end cover and the screw rod through the screw rod. A proximity switch mounting bracket is installed on one side under the mounting base. Two waist-shaped holes are opened at the upper and lower ends of the proximity switch mounting bracket and two proximity switches are installed. Below the lower end cover, a sleeve is installed on the outer surface of the lower side of the locking pin. On the upper side of the sleeve, a concave groove is opened in the direction of the proximity switch and an induction sheet is installed. The induction sheet is in a Z-shaped structure or can also be in a straight-line structure, and is selected according to objective conditions such as the descending stroke of the locking pin and the installation space. The other side of the induction sheet needs to be aligned with the proximity switch and maintain the required induction distance.
[0041] The locking mechanism is placed on the upper surface of the turntable and consists of a support, a locking rod, a spring, a cover plate, a retaining pin, a retaining piece, and a pull ring.
[0042] The locking rod is installed inside the support, and a round hole is opened on the front side of the support to allow the lock head to enter and exit. The lock head can be inserted into the small groove of the handle. A retaining pin and a pull ring are installed at the tail of the locking rod. Retaining pieces are placed on both sides of the retaining pin and the lock head, and a spring is installed between the two retaining pieces. The diameter of the retaining piece on one side of the lock head is larger than the round hole on the mounting base. The cover plate is installed at the tail of the support. A straight-line hole is opened in the center of the cover plate, and a semi-cylindrical structure groove is opened on one side of the outer surface at a 90-degree angle to the straight-line hole. The retaining pin can pass through the straight-line hole and can be placed in the semi-circular groove.
[0043] The main working principle of the present utility model is as follows:
[0044] When changing from the unlocked state to the locked state, pull the pull ring to move the lock head of the lock rod out of the small groove of the handle, and move the lock pin out of the cover plate. Rotate the pull ring 90 degrees to make the lock pin and the lock rod rotate 90 degrees. Release the pull ring to place the lock pin into the semi-cylindrical groove of the cover plate. Place your finger in the large groove of the handle and rotate the handle. The rotation of the handle drives the rotation of the screw rod, which in turn drives the rotation of the lock pin. The sliding friction between the conical surfaces of the screw rod and the copper ring can reduce the wear of the screw rod and the mounting seat. Because there is a positioning pin in the groove of the lock pin, the lock pin will only move up and down without rotating. To prevent the screw rod from moving upward autonomously when rotating due to excessive friction when the lock pin descends, the upper end cover needs to clamp the shoulder of the screw rod. The copper ring also plays a role in reducing the mutual wear between the screw rod and the upper end cover. To prevent the lock pin from rotating out excessively when moving to the lowest position, there is a lower end cover to block it. At this time, the sensing piece moves to the position below the proximity switch mounting seat close to the proximity switch and sends out a locked state signal. The lock pin is inserted into the matching locking hole on the chassis. Then rotate the pull ring 90 degrees to make the retaining pin enter the cover plate, and use the elastic force of the spring to push the lock head out of the mounting seat and clamp it into the small groove of the handle, so that the handle cannot rotate. The positioning pin also prevents the lock pin from rotating on its own, thus preventing the lock pin from moving up and down. The locking process is completed.
[0045] When changing from the locked state to the unlocked state, perform the same actions as above, but rotate the handle in the reverse direction to move the lock pin upward. When the lock pin moves to the position where the copper ring is placed on the mounting seat, it will be blocked. At this time, the sensing piece moves to the upper proximity switch position and senses the signal. Then insert the lock rod into the small groove of the handle. The unlocking process is completed.
Claims
1. An in-vehicle turntable auxiliary device, comprising an azimuth fixator (1), characterized in that: The azimuth fixer (1) is installed close to the turntable (5). A locking mechanism (2) is installed at a position on the turntable (5) directly opposite to the azimuth fixer (1). There is a handle (12) on the azimuth fixer (1), and there is a groove on the side of the handle (12). The front end structure of the retaining shaft (21) of the locking mechanism (2) is matched with the groove of the handle (12). The handle (12) is installed on the screw rod (11) by means of a threaded fit. The middle and lower part of the screw rod (11) is sleeved in the locking pin (14) and the screw rod (11) and the locking pin (14) are in threaded fit. Both the screw rod (11) and the locking pin (14) are sleeved in the mounting seat (13). A chassis (3) is fixed below the mounting seat (13). There is a locking hole (31) at a position on the chassis (3) directly opposite to the locking pin (14).
2. The vehicle-mounted turntable auxiliary device according to claim 1, characterized in that: A proximity switch group (4) is installed and fixed at the bottom of the mounting seat (13) for detecting the position of the locking pin (14).
3. The on-vehicle turntable auxiliary device according to claim 2, characterized in that: The proximity switch group (4) includes a proximity switch mounting seat (41). The proximity switch mounting seat (41) is fixed to the mounting seat (13). An upper proximity switch (42) and a lower proximity switch (43) are respectively fixed on the proximity switch mounting seat (41). Inductive sheets (44) are fixed at positions on the outer wall of the locking pin (14) directly opposite to the upper proximity switch (42) and the lower proximity switch (43). The height of the upper proximity switch (42) is such that when the locking pin (14) is in the highest position, the inductive sheet (44) is directly opposite to the upper proximity switch (42). The height of the lower proximity switch (43) is such that when the locking pin (14) is in the lowest position, the inductive sheet (44) is directly opposite to the lower proximity switch (43).
4. The vehicle-mounted turntable auxiliary device according to claim 3, characterized in that: The inductive sheet (44) is of a "Z" - shaped structure. In the vertical projection, the inductive sheet (44) extends beyond the inner diameter of the mounting seat (13).
5. The vehicle-mounted turntable auxiliary device according to claim 3, characterized in that: The inductive sheet (44) is fixed to the locking pin (14) through a sleeve (17). The sleeve (17) is sleeved and fixed on the locking pin (14).
6. The vehicle-mounted turntable auxiliary device according to claim 1, characterized in that: A nut (19) is fixed to the side of the mounting seat (13). A stud (18) passes through the nut (19) and is in threaded fit with the nut (19). The height of the stud (18) is such that when the locking pin (14) is in the lowest position, the stud (18) is at the top surface of the locking pin (14) to limit the upward movement of the locking pin (14).
7. The on-vehicle turntable auxiliary device according to claim 1, characterized in that: The top of the mounting seat (13) is fixed and sealed by an upper end cover (15). The screw rod (11) passes through the upper end cover (15). The bottom of the mounting seat (13) is fixed and sealed by a lower end cover (16). The locking pin (14) passes through the lower end cover (16). There is a protruding step structure on the screw rod (11) at a position higher than the locking pin (14). An upper felt pad (114) is installed at a position on the bottom surface of the upper end cover (15) directly opposite to the top of this step structure for buffering.
8. The on-vehicle turntable auxiliary device according to claim 7, characterized in that: A copper sheet (111) is sleeved on the outside of the step structure of the locking pin (14), and a copper ring (113) is installed on the bottom surface of this step structure.
9. The on-vehicle turntable auxiliary device according to claim 7, characterized in that: A lower felt pad (112) is installed on the top surface of the lower end cover (16) in close contact with the locking pin (14) for buffering.
10. The vehicle-mounted turntable auxiliary device according to claim 1, characterized in that: The locking mechanism (2) includes a support (22) and a cover plate (27) that form a closed housing. A stop shaft (21) passes through the support (22) and the cover plate (27). A spring (23) is sleeved on the stop shaft (21) in the inner cavities of the support (22) and the cover plate (27) to elastically reset the stop shaft (21). A front retaining piece (25) and a rear retaining piece (24) are respectively arranged at both ends of the spring (23). A pull ring (28) is connected to the rear end of the stop shaft (21). A cross-shaped stop pin (26) is arranged on the stop shaft (21), and a cross-shaped slot is provided on the cover plate (27) so that the stop pin (26) can be embedded therein.