Vehicle-mounted GPS terminal

Abstract

The utility model discloses a vehicle GPS terminal, including casing and communication interface, the casing front end is provided with the through hole of being suitable for the communication interface, is provided with the guide rod in the casing, and the spring is covered on the guide rod, the communication interface is connected with the dialing lever, the guide rod passes through this dialing lever, and the dialing lever is opposite with the spring, and the dialing lever is stretched out casing upwards, is provided with the stroke groove at the dialing lever department of casing, is provided with the apron in the sliding slot of setting up in the casing, and the apron can cover the through -hole, is provided with the connecting rod between the apron and communication interface, and one end of this connecting rod can rotatablely connect with communication interface, and the other end of connecting rod can rotatablely connect with apron, is provided with the dialing lever locking mechanism on the casing. The utility model provides technical scheme through the cooperation of guide rod and spring, provides the sustained pre -tightening force for communication interface, ensures that external joint inserts always keep close adhesion after, significantly reduces the interface slack risk caused by vehicle vibration.

Description

Technical Field

[0001] This utility model relates to the field of locator technology, and in particular to a vehicle-mounted GPS terminal. Background Technology

[0002] GPS tracking devices installed in vehicles are mainly divided into two categories: magnetic trackers and wired trackers. Magnetic trackers typically consist of a built-in battery and a strong magnet. Their advantage lies in their ease of installation, as they can be attached to any part of the vehicle's exterior using magnets. However, their disadvantage is limited battery life, requiring periodic charging or replacement. Wired trackers, on the other hand, connect directly to the vehicle's power supply, eliminating the need for frequent monitoring of the battery status. However, their communication interface is susceptible to interference during vehicle operation—when the vehicle vibrates due to uneven road surfaces, the communication interface of the wired vehicle GPS terminal can easily become loose due to the vibration, leading to communication interruption and affecting the normal use of the tracking function.

[0003] In existing technologies, while some improvements have been attempted to address the loosening issue of communication interfaces in wired vehicle GPS terminals, shortcomings remain in their structural design. For example, some solutions reduce loosening by increasing the force required to insert and remove the interface, but this leads to accelerated interface wear; other solutions use additional fasteners to reinforce the interface, but this occupies limited internal space, affecting the layout and wiring of other components, and the complex fixing structure is not conducive to actual assembly and maintenance. Therefore, there is an urgent need for a vehicle GPS terminal design that can effectively solve the problem of loose communication interfaces without affecting the internal structural layout and normal use of the terminal. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a vehicle-mounted GPS terminal, which aims to solve the technical problem that the communication interface of the wired vehicle-mounted GPS terminal is prone to loosening when the vehicle vibrates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A vehicle-mounted GPS terminal includes a housing and a communication interface. The front end of the housing has a through hole adapted to the communication interface. A guide rod is disposed inside the housing, and a spring is fitted onto the guide rod. A lever is connected to the communication interface, through which the guide rod passes. The lever abuts against the spring and extends upwards out of the housing. A travel groove is provided on the housing corresponding to the lever. A sliding groove is provided inside the housing, within which a cover plate is slidably disposed. The cover plate covers the through hole. A connecting rod is provided between the cover plate and the communication interface, with one end rotatably connected to the communication interface and the other end rotatably connected to the cover plate. A lever locking mechanism is provided on the housing.

[0006] Furthermore, in the vehicle-mounted GPS terminal, the housing includes a top plate, a bottom plate, a front plate, a rear plate, and two side plates; the travel groove is formed on the top plate; and the sliding groove is disposed on the inner side of the front plate.

[0007] Furthermore, in the aforementioned vehicle-mounted GPS terminal, the cover plate is arranged parallel to the front end plate.

[0008] Furthermore, in the vehicle-mounted GPS terminal, a guide rod fixing seat is provided on the inner wall of the top plate facing downwards. One end of the guide rod is connected to the guide rod fixing seat, and the other end of the guide rod is connected to the front end plate. The guide rod is set perpendicular to the front end plate.

[0009] Furthermore, in the aforementioned vehicle-mounted GPS terminal, the distance between the guide rod and the inner wall of the top plate is less than 5mm.

[0010] Furthermore, in the vehicle-mounted GPS terminal, a protrusion is provided on the inward side of the cover plate, and the protrusion is rotatably connected to the connecting rod.

[0011] Furthermore, in the vehicle-mounted GPS terminal, the lever locking mechanism includes a baffle seat disposed on the housing, and a baffle slidably connected to the baffle seat.

[0012] Furthermore, in the vehicle-mounted GPS terminal, the lever locking mechanism includes a stop lever and a torsion spring, which are rotatably connected to the housing, and a locking block is provided on the housing; one end of the torsion spring is located in the locking block, and the other end of the torsion spring abuts against the stop lever.

[0013] Beneficial effects: This utility model provides a GPS terminal that, compared with the prior art, has at least the following advantages: The guide rod and spring work together to provide continuous preload to the communication interface, ensuring a tight fit after the external connector is inserted. This significantly reduces the risk of interface loosening due to vehicle vibration and guarantees communication stability. When the communication interface is not in use, pushing the lever will retract the interface into the housing, and the cover will automatically cover the through hole, effectively preventing dust and moisture from entering the housing. Attached Figure Description

[0014] Figure 1 The three-dimensional vehicle-mounted GPS terminal provided by this utility model Figure 1 The communication interface in the diagram is in the extended state.

[0015] Figure 2 The three-dimensional vehicle-mounted GPS terminal provided by this utility model Figure 2 The communication interface in the diagram is in a retracted state.

[0016] Figure 3 Schematic diagram of the internal structure of a vehicle-mounted GPS terminal Figure 1 The communication interface in the diagram is in the extended state.

[0017] Figure 4 Schematic diagram of the internal structure of a vehicle-mounted GPS terminal Figure 2 The communication interface in the diagram is in a retracted state.

[0018] Figure 5 This is a schematic diagram of a lever locking device.

[0019] Figure 6 This is a schematic diagram of another type of lever locking device.

[0020] Explanation of reference numerals in the attached figures: 1. Shell; 11. Top plate; 12. Bottom plate; 13. Front end plate; 15. Side plate; 100. Through hole; 110. Stroke groove; 130. Slide groove; 2. Communication interface; 3. Lever; 31. Hook; 4. Guide rod; 41. Guide rod fixing seat; 5. Spring; 6. Connecting rod; 7. Cover plate; 71. Protrusion; 81. Baffle seat; 82. Baffle; 91. Stop lever; 92. Torsion spring; 93. Locking block; 911. Pin. Detailed Implementation

[0021] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model is further described in detail below. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0022] Please see Figures 1 to 6 This utility model provides a vehicle-mounted GPS terminal. The accompanying drawings are for illustrative purposes only and are not proportional to the actual product. Figure 3 and Figure 4 From a distance, it is actually impossible to directly observe the internal structure from the outside; the attached diagram is merely a schematic representation of the relative relationships of the internal structures.

[0023] The accompanying drawings only show the structures relevant to the innovations of this application; some conventional structures are not specifically depicted. For example, in this utility model, a motherboard is housed within the casing, and the motherboard houses a GPS module, a mobile communication module, etc. The motherboard is electrically connected to the communication interface via wires to realize the transmission and processing of positioning data. Since the motherboard, GPS module, and mobile communication module are not innovations, they are not shown; instead, the focus is on the structures related to the communication interface.

[0024] For ease of explanation, this paper inevitably uses some directional terms, but these directional terms are not intended to limit this application.

[0025] The vehicle-mounted GPS terminal includes a housing 1 and a communication interface 2. The front end of the housing has a through hole 100 adapted to the communication interface. A guide rod 4 is installed inside the housing, and a spring 5 is fitted onto the guide rod 4. A lever 3 is connected to the communication interface, through which the guide rod 4 passes. The lever abuts against the spring and extends upwards out of the housing. A travel groove 110 is provided on the housing corresponding to the lever. A sliding groove 130 is provided inside the housing, within which a cover plate 7 is slidably installed. The cover plate 7 covers the through hole 100. A connecting rod 6 is provided between the cover plate and the communication interface. One end of the connecting rod 6 is rotatably connected to the communication interface 2, and the other end is rotatably connected to the cover plate 7. A lever locking mechanism is provided on the housing. Figure 1 and Figure 2 The lever locking mechanism is not shown in the drawing; it will be described in detail below.

[0026] Appendix Figure 1 and 2 The communication interface shown is a DB-15 interface, but it is not limited to this in actual applications; other types of interfaces can be used. The communication interface is connected to the motherboard via a flexible wire (not shown in the figure) (rather than being directly soldered to the motherboard). Because the wire itself is flexible, the communication interface can be moved without interfering with or even damaging the motherboard.

[0027] Furthermore, the housing includes a top plate 11, a bottom plate 12, a front end plate 13, a rear end plate (not visible in the figure), and two side plates 15. The plates described above can be connected by bolts or by snap-fit ​​connections, and the internal space enclosed by the plates is used to install the motherboard, GPS module, mobile communication module, and other structures.

[0028] The through hole 100 is provided on the front end plate 13. The size of the through hole is slightly larger than the cross-section of the communication interface to ensure that the communication interface can reciprocate within the through hole in the horizontal direction.

[0029] The travel groove 110 is formed on the top plate 11. The travel groove extends along the moving direction of the communication interface, and its length matches the maximum moving distance of the communication interface, so as to limit the moving range of the lever.

[0030] The slide groove 130 is disposed on the inner side of the front end plate 13 to guide the sliding of the cover plate. The cover plate is arranged parallel to the front end plate and slides in the slide groove. The area of ​​the cover plate is larger than that of the through hole and can completely cover the through hole. The cover plate is a rectangular thin plate, preferably made of ABS engineering plastic.

[0031] In this invention, the guide rod 4 passes through the lever 3, meaning the lever has a guide hole (not shown in the figure) that matches the shape of the guide rod. The guide rod passes through the guide hole on the lever, allowing it to guide the lever, i.e., the communication interface and the lever move along the length of the guide rod. The lever extends upward from the travel groove on the top plate, and a hook is provided at the top of the lever for easy operation by the user.

[0032] like Figure 3 and Figure 4 As shown, further, a guide rod fixing seat 41 is provided on the inner wall of the top plate 11 facing downward. One end of the guide rod 4 is connected to the guide rod fixing seat 41, and the other end of the guide rod is connected to the front end plate. The guide rod is set perpendicular to the front end plate. One end of the spring abuts against the guide rod fixing seat, and the other end abuts against the lever. When the communication interface extends out of the through hole (i.e., in normal use), the spring is in a slightly compressed state (the specific compression amount is not limited here and can be determined by the actual situation), providing an outward preload force for the communication interface.

[0033] Furthermore, the distance between the guide rod 4 and the inner wall of the top plate 11 is less than 5mm. The compact layout reduces the space occupied inside the housing and avoids affecting the installation of other components.

[0034] Furthermore, a protrusion 71 is provided on the inward side of the cover plate 7, which is rotatably connected to the connecting rod. By providing the protrusion, both the thickness of the cover plate is ensured to be relatively thin, and the rotatable connection between the cover plate and the connecting rod is facilitated.

[0035] When the lever retracts and compresses the spring, the spring applies an outward force to the lever. To lock the lever, a lever locking device is required. In practical applications, there are several ways to implement the lever locking device; two are provided below.

[0036] like Figure 5 As shown, one embodiment of the design includes a baffle seat 81 mounted on the housing and a baffle 82 slidably connected to the baffle seat. When the lever retracts, it compresses the spring, pushing out the baffle (shown in the diagram as a push from right to left). The baffle then abuts against the lever, locking it in place. When the communication interface is needed, the baffle is pushed in the opposite direction, causing the lever to move forward under the spring force.

[0037] like Figure 6As shown, another embodiment includes a lever locking mechanism comprising a stop lever 91 and a torsion spring 92. The stop lever and torsion spring are rotatably connected to the housing, which has a locking block 93. One end of the torsion spring is positioned within the locking block, while the other end abuts against the stop lever. Retracting the lever compresses the spring, and the stop lever, under the elastic force of the torsion spring, presses against the lever, thus locking it in place. When the communication interface is needed, rotating the stop lever (clockwise as shown in the diagram) causes it to rotate around the pin 911, moving it away from the lever. The lever then moves forward under the elastic force of the spring.

[0038] To facilitate understanding, the working principle is briefly described below.

[0039] Under normal use, the cover plate does not obstruct the through-hole, and the lever is positioned near the front panel under the spring force. At this time, the front end of the communication interface extends outward from the through-hole for insertion of the external connector. Because the spring is in a compressed state, it always applies a horizontal forward force to the lever. The communication interface and the lever are connected, thus the communication interface remains in the state of extending outward from the through-hole. Even if the vehicle vibrates, the communication interface will not loosen.

[0040] When the communication interface is not needed, the lever can be pushed backward and then locked by the lever locking mechanism. As the lever moves backward, the communication interface also moves backward until it is completely retracted into the inner cavity of the housing. Because the communication interface and the cover are connected by a linkage, when the communication interface moves backward, the cover moves upward until it completely blocks the through-hole. With the through-hole completely blocked, external water, dust, etc., are prevented from entering the housing through the through-hole.

[0041] It should be noted that, compared to existing technologies, although the technical solution proposed in this utility model adds structures such as guide rods, springs, and cover plates, these structures are located close to the top and front plates of the housing and are very compactly arranged, so they will not interfere with the installation of the main board and components on the main board inside the housing. In actual design, the layout of components on the main board (i.e., the PCB board) is often designed by comprehensively considering factors such as circuit structure and installation space, and the specific dimensions of the vehicle GPS terminal need to take into account the installation of the main board and components.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of the present utility model, and all such modifications or substitutions should fall within the protection scope of the present utility model.

Claims

1. A vehicle-mounted GPS terminal, comprising a housing and a communication interface, characterized in that: The front end of the housing has a through hole adapted to the communication interface. A guide rod is installed inside the housing, and a spring is sleeved on the guide rod. The communication interface is connected to a lever, through which the guide rod passes. The lever abuts against the spring and extends upward out of the housing. A travel groove is provided on the housing corresponding to the lever. A sliding groove is provided inside the housing, and a cover plate is slidably installed in the sliding groove. The cover plate can cover the through hole. A connecting rod is provided between the cover plate and the communication interface. One end of the connecting rod is rotatably connected to the communication interface, and the other end of the connecting rod is rotatably connected to the cover plate. A lever locking mechanism is provided on the housing.

2. The vehicle-mounted GPS terminal according to claim 1, characterized in that: The housing includes a top plate, a bottom plate, a front plate, a rear plate, and two side plates; the travel groove is formed on the top plate; the sliding groove is disposed on the inner side of the front plate.

3. The vehicle-mounted GPS terminal according to claim 2, characterized in that: The cover plate is set parallel to the front end plate.

4. The vehicle-mounted GPS terminal according to claim 2, characterized in that: The inner wall of the top plate is provided with a guide rod fixing seat facing downward. One end of the guide rod is connected to the guide rod fixing seat, and the other end of the guide rod is connected to the front end plate. The guide rod is set perpendicular to the front end plate.

5. The vehicle-mounted GPS terminal according to claim 3, characterized in that: The distance between the guide rod and the inner wall of the top plate is less than 5mm.

6. The vehicle-mounted GPS terminal according to claim 1, characterized in that: A protrusion is provided on the inward side of the cover plate, and the protrusion is rotatably connected to the connecting rod.

7. The vehicle-mounted GPS terminal according to claim 1, characterized in that: The lever locking mechanism includes a baffle seat disposed on the housing, and a baffle that is slidably connected to the baffle seat.

8. The vehicle-mounted GPS terminal according to claim 1, characterized in that: The lever locking mechanism includes a stop bar and a torsion spring, which are rotatably connected to the housing. A locking block is provided on the housing. One end of the torsion spring is located in the locking block, and the other end of the torsion spring abuts against the stop bar.

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