An anti-tampering anti-interference vehicle positioning terminal for a sanitation vehicle

Abstract

The utility model relates to vehicle positioning equipment technical field discloses a kind of tamper-resistant anti-interference vehicle positioning terminal for environmental sanitation vehicle, including installation box and the vehicle positioning terminal main body installed in the inside of installation box, the top of installation box is equipped with box cover, the inside fixed mounting of installation box is equipped with the limiting mechanism that can limit vehicle positioning terminal main body, the side of installation box is equipped with the filter electrically connected with vehicle positioning terminal main body, the inside fixed mounting of installation box is equipped with the anti-tamper lock structure that must be unlocked using special key, the utility model cooperates by special-shaped slot and special-shaped plug bar, so that ordinary general tool cannot be operated completely, greatly improve the difficulty and cost of unauthorized disassembly. Meanwhile, the design of lock hole protective cover further prevents dust, rainwater from invading lock hole and being damaged by using technical means through lock hole, thereby effectively eliminating terminal failure caused by human disassembly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted positioning equipment technology, specifically to an anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles. Background Technology

[0002] Vehicle-mounted positioning terminals are a core component of modern sanitation vehicle management systems. They use global satellite positioning systems (such as GPS and BeiDou) and mobile communication networks to report key information such as vehicle location, speed, and trajectory in real time, which is an important foundation for achieving operation supervision, scheduling optimization, and cost control.

[0003] For example, Chinese utility model patent CN221233657U discloses a Beidou vehicle-mounted positioning terminal, including a mounting box and a vehicle-mounted positioning main body installed inside the mounting box. The top of the mounting box is provided with a box cover, and connecting plates are symmetrically arranged on both sides of the mounting box. A fixing plate is connected to the bottom of the connecting plates. An adjustment mechanism is provided inside the fixing plate. A clamping mechanism is connected to the inside of the mounting box through the adjustment mechanism. The bottom of the fixing plate is provided with a mounting mechanism. The adjustment mechanism includes a bidirectional lead screw, a bearing, a moving block, a connecting rod, and a handwheel. The clamping mechanism includes a baffle, a movable rod, a limiting plate, a spring, and a clamping plate. This utility model is a Beidou vehicle-mounted positioning terminal, which facilitates adjustment and fixing according to the size of the vehicle-mounted positioning main body, thus improving its applicability. The vehicle-mounted positioning main body has a buffer effect when clamped, avoiding damage to the vehicle-mounted positioning main body during clamping and preventing it from falling off and causing damage. Installation is convenient and quick, and disassembly and maintenance are easy.

[0004] The aforementioned technical solutions have the following problems: Currently, the vehicle-mounted terminal protective cases on the market mainly suffer from the following two types of defects: One type focuses on physical anti-tampering but lacks electromagnetic shielding. These protective cases use high-strength engineering plastics or ordinary metal materials, and increase the difficulty of disassembly through slightly complex fasteners such as hexagonal screws. However, plastic materials are easily cracked and are completely transparent to electromagnetic waves; while ordinary metal shells, if not specially designed for electromagnetic sealing, will have seams that become windows for electromagnetic leakage, failing to effectively shield external interference signals. The other type is found in standard electromagnetic shielding enclosures in the communications or industrial fields. Although they have shielding functions, their anti-tampering performance is insufficient. Their covers are usually fastened with a large number of standard screws (such as Phillips screwdrivers and hexagonal wrenches), which are extremely common, making disassembly easy and completely failing to meet the anti-tampering protection requirements of terminal equipment in a vehicle environment. Utility Model Content

[0005] The purpose of this invention is to provide an anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles includes a mounting box and a vehicle-mounted positioning terminal body installed inside the mounting box. The top of the mounting box is fitted with a box cover. A limiting mechanism capable of limiting the vehicle-mounted positioning terminal body is fixedly installed inside the mounting box. A filter electrically connected to the vehicle-mounted positioning terminal body is installed on the side of the mounting box. An anti-tamper lock structure that can only be unlocked with a special key is fixedly installed inside the mounting box.

[0007] Furthermore, the top of the mounting box is provided with a first placement groove, and the bottom of the box cover is provided with a second placement groove. The first placement groove and the second placement groove are embedded with conductive sealing gaskets, which are made of silver-filled silicone conductive rubber material.

[0008] Furthermore, the limiting mechanism includes a placement frame, which is fixedly installed at the bottom of the inner wall of the mounting box. The side of the placement frame is provided with a threaded groove, and a threaded rod is threadedly connected inside the threaded groove. A baffle is installed on the side of the threaded rod, and the baffle abuts against the main body of the vehicle positioning terminal.

[0009] Furthermore, the anti-tamper lock structure includes a fixing frame, which is fixedly installed on the inner wall of the mounting box. A connecting groove is provided inside the fixing frame, and a connecting plate is welded to the bottom of the box cover. The connecting plate is adapted to the connecting groove.

[0010] Furthermore, a rotating rod is rotatably installed inside the fixed frame, a gear is fixedly installed on the outer side of the rotating rod, toothed rods mesh on both the upper and lower sides of the gear, a movable plate is welded to the side of the toothed rod, a retaining plate is welded to the side of the movable plate away from the toothed rod, a retaining groove adapted to the retaining plate is opened on the side of the connecting plate, a limiting rod is fixedly installed inside the fixed frame, and the movable plate is slidably connected to the limiting rod.

[0011] Furthermore, the rotating rod has an irregular groove on its side, and an irregular insert rod is engaged inside the irregular groove. A special lock is welded to the side of the irregular insert rod.

[0012] Furthermore, a connecting frame is welded to the outside of the mounting box, and a lock hole protective cover is threadedly connected to the outside of the connecting frame.

[0013] The beneficial effects of this utility model are as follows: 1. The core innovation of this utility model lies in the introduction of an tamper-proof lock structure that requires a special key to operate. This structure, through the cooperation of a uniquely shaped groove and a uniquely shaped insert, renders it completely impossible to operate with ordinary tools, significantly increasing the difficulty and cost of unauthorized disassembly. Simultaneously, the design of the keyhole protective cover further prevents dust and rainwater from entering the keyhole and from being damaged through the keyhole using technical means (such as wire or glue), thus effectively preventing terminal failure caused by human disassembly and ensuring asset security and the integrity of management data.

[0014] 2. This utility model constructs a complete Faraday cage electromagnetic shielding structure by installing a filter at the cable interface and using a mounting box and cover made of conductive material, combined with a conductive sealing gasket. This design effectively suppresses and attenuates external electromagnetic interference signals (such as interference generated by GPS / BeiDou signal jammers) that intrude through both spatial radiation and cable conduction, ensuring that the vehicle-mounted positioning terminal can continuously and stably receive satellite signals and upload data in complex vehicle electromagnetic environments, fundamentally solving the problems of "disconnection" and inaccurate positioning caused by signal interference. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the keyhole protective cover during installation. Figure 2 This is a schematic diagram of the overall structure of the connecting rod during installation of this utility model; Figure 3 The explosion of the overall structure of this utility model Figure 1 ; Figure 4 The explosion of the overall structure of this utility model Figure 2 ; Figure 5 This is a cross-sectional view of the mounting box and lid of this utility model. Figure 1 ; Figure 6 This is a cross-sectional view of the mounting box and lid of this utility model. Figure 2 ; Figure 7 This is a cross-sectional structural diagram of the installation box of this utility model.

[0016] Reference numerals: 1. Mounting box; 2. Box cover; 3. First placement slot; 4. Second placement slot; 5. Conductive sealing gasket; 6. Limiting mechanism; 601. Placement frame; 602. Threaded rod; 603. Baffle; 7. Vehicle positioning terminal body; 8. Filter; 9. Anti-tamper lock structure; 901. Fixing frame; 902. Connecting slot; 903. Connecting plate; 904. Rotating rod; 905. Gear; 906. Tooth block rod; 907. Movable plate; 908. Card plate; 909. Card slot; 910. Limiting rod; 911. Special lock; 912. Irregular groove; 913. Irregular insertion rod; 10. Connecting frame; 11. Lock hole protective cover. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0022] Figures 1-7 This is the preferred embodiment of the present invention, which is described below in conjunction with... Figures 1-7 The present invention will be further described below.

[0023] An anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles includes a mounting box 1 and a vehicle-mounted positioning terminal body 7 installed inside the mounting box 1. A box cover 2 is installed on the top of the mounting box 1. A limiting mechanism 6 that can limit the movement and vibration of the vehicle-mounted positioning terminal body 7 is fixedly installed inside the mounting box 1. Specifically, the limiting mechanism 6 can effectively limit the movement and vibration of the vehicle-mounted positioning terminal body 7 in all directions caused by vehicle bumps during transportation and operation, and prevent the internal components of the vehicle-mounted positioning terminal body 7 from loosening or being damaged due to long-term vibration, thus significantly improving the reliability and service life of the vehicle-mounted positioning terminal. A filter 8 electrically connected to the vehicle-mounted positioning terminal body 7 is installed on the side of the mounting box 1. An anti-tamper lock structure 9 that can only be unlocked with a special key is fixedly installed inside the mounting box 1. Specifically, the anti-tamper lock structure 9 makes it impossible to operate with ordinary general tools, greatly increasing the difficulty and cost of unauthorized disassembly, and achieving the anti-tampering effect.

[0024] The top of the mounting box 1 has a first placement slot 3, and the bottom of the box cover 2 has a second placement slot 4. Conductive sealing gaskets 5 are embedded inside the first and second placement slots 3 and 4. The conductive sealing gaskets 5 are made of silver-filled silicone conductive rubber material. Specifically, the mounting box 1 and box cover 2, made of conductive material, together with the conductive sealing gaskets 5, constitute a complete Faraday cage electromagnetic shielding structure. This ensures that the vehicle-mounted positioning terminal can continuously and stably receive satellite signals and upload data in complex vehicle electromagnetic environments, fundamentally solving the problems of "disconnection" and inaccurate positioning caused by signal interference.

[0025] The limiting mechanism 6 includes a placement frame 601, which is fixedly installed on the bottom of the inner wall of the mounting box 1. The side of the placement frame 601 is provided with a threaded groove, and a threaded rod 602 is threadedly connected inside the threaded groove. A baffle 603 is installed on the side of the threaded rod 602, and the baffle 603 abuts against the vehicle positioning terminal body 7. Specifically, by rotating the threaded rod 602, the baffle 603 can be moved left and right, thereby adjusting the placement space of the placement frame 601. This allows it to adapt to terminal equipment of different sizes and effectively limit its movement and vibration in all directions caused by vehicle bumps during transportation and operation.

[0026] The anti-tamper lock structure 9 includes a fixing frame 901, which is fixedly installed on the inner wall of the mounting box 1. A connecting groove 902 is provided inside the fixing frame 901. A connecting plate 903 is welded to the bottom of the box cover 2, and the connecting plate 903 is adapted to the connecting groove 902. A rotating rod 904 is rotatably installed inside the fixing frame 901. A gear 905 is fixedly installed on the outer side of the rotating rod 904. Gear blocks 906 mesh with the upper and lower sides of the gear 905. A movable plate 907 is welded to the side of the gear blocks 906. A locking plate 908 is welded to the side of the movable plate 907 away from the gear blocks 906. A locking groove 909 adapted to the locking plate 908 is provided on the side of the connecting plate 903. A limiting rod 910 is fixedly installed inside the fixing frame 901, and the movable plate 907 is slidably connected to the limiting rod 910. The rotating rod 904 has a shaped groove 912 on its side, and a shaped insert rod 913 is engaged inside the groove 912. A special lock 911 is welded to the side of the shaped insert rod 913. Specifically, by inserting the shaped insert rod 913 of the special lock 911 into the shaped groove 912 of the rotating rod 904, the special lock 911 can be rotated to drive the rotating rod 904 and the gear 905 to rotate. Under the transmission mode of gear 905 meshing with the toothed rod 906, rotating the rotating rod 904 can synchronously drive the upper and lower locking plates 908 to insert or exit the locking slots 909, thereby locking or releasing the limiting position of the connecting plate 903. This design utilizes the self-locking characteristic and symmetrical force application characteristics of the gear 905 transmission to make the box cover 2 uniformly stressed when locked, and the locking is very firm, which can effectively resist vibration and impact.

[0027] A connecting frame 10 is welded to the outside of the mounting box 1. A lock hole protective cover 11 is threaded to the outside of the connecting frame 10. Specifically, the lock hole protective cover 11 can further prevent dust and rainwater from entering the lock hole and prevent damage by technical means (such as wire or glue) through the lock hole, thereby effectively preventing terminal failure caused by human disassembly and ensuring asset security and the integrity of management data.

[0028] Working principle and usage process of this utility model: Phase 1: Installation and Locking Step 1: Place and secure the terminal Place the vehicle positioning terminal body 7 in the placement rack 601 at the bottom of the inner wall of the mounting box 1.

[0029] According to the size of the terminal body, the threaded rod 602 of the limiting mechanism 6 is screwed on. The threaded rod 602 is pushed inward, causing the baffle 603 at its end to move until the baffle 603 is tightly pressed against the side of the terminal body.

[0030] Step 2: Connect the cables and filter 8 Insert all external cables, such as the power cord and antenna, of the vehicle-mounted positioning terminal body 7 into the interface reserved on the side wall of the mounting box 1.

[0031] Electrically connect these cables to the corresponding interfaces of the vehicle positioning terminal body 7.

[0032] Key step: Ensure all external cables pass through and are secured to the corresponding ports on filter 8. Filter 8 filters out interference signals conducted through the cables, which is crucial for ensuring stable operation of the terminal in complex electromagnetic environments.

[0033] Step 3: Close and lock the lid 2. Align the connecting plate 903 at the bottom of the cover 2 with the connecting groove 902 on the fixing bracket 901 inside the mounting box 1, and place it downwards to close the cover 2 with the mounting box 1.

[0034] At this time, the first placement groove 3 and the second placement groove 4 on the mating surface of the cover 2 and the mounting box 1 will press the internal conductive sealing gasket 5 tightly to form a complete electromagnetic shield.

[0035] Take out the special lock 911 and insert its front end, the irregularly shaped insert 913, into the irregularly shaped groove 912 of the rotating rod 904 inside the fixing frame 901.

[0036] The rotating special lock 911 drives the rotating rod 904 and the gear 905 on it to rotate together.

[0037] Gear 905 drives the toothed rods 906 on both sides to move in opposite directions. The toothed rods 906 drive the locking plate 908 to extend through the movable plate 907 and finally lock into the slot 909 on the side of the connecting plate 903. Due to the guiding effect of the limiting rod 910, the movement of the movable plate 907 and the locking plate 908 is smooth and precise.

[0038] When significant resistance is felt, it indicates that the cover 2 has been completely locked. At this point, the self-locking characteristic of the rack and pinion mechanism prevents it from being accidentally released.

[0039] Step 4: Install the protective cover Screw the lock hole protective cover 11 onto the connecting bracket 10 on the outside of the mounting box 1 to protect the insertion port of the special lock 911 from dust, rainwater and human damage.

[0040] Phase Two: Maintenance and Unlocking Step 1: Remove protection Use tools or your hands to unscrew the lock hole cover 11 that is threaded onto the connector 10, exposing the irregular groove 912 entrance on the fixture 901.

[0041] Step 2: Unlock and open the box lid 2 Using the dedicated lock 911 again, insert the irregularly shaped rod 913 into the irregularly shaped groove 912.

[0042] Rotate the special lock 911 in the opposite direction to locking, and the upper and lower locking plates 908 will be driven out of the slot 909 through the transmission mechanism.

[0043] Once the card plate 908 is completely disengaged from the card slot 909, the cover 2 can be lifted upwards to disengage the connecting plate 903 from the connecting slot 902, thereby opening the installation box 1.

[0044] Step 3: Perform maintenance At this point, the main body 7 of the vehicle-mounted positioning terminal inside the box can be inspected, repaired, or replaced as necessary. After maintenance is completed, repeat steps three and four of the first stage "Installation and Locking" to relock the device and put it into normal use.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted positioning terminal for sanitation vehicles that is tamper-proof and interference-resistant, comprising a mounting box (1) and a vehicle-mounted positioning terminal body (7) installed inside the mounting box (1), characterized in that: The top of the mounting box (1) is fitted with a box cover (2), and the inside of the mounting box (1) is fitted with a limiting mechanism (6) that can limit the position of the vehicle positioning terminal body (7). The side of the mounting box (1) is fitted with a filter (8) that is electrically connected to the vehicle positioning terminal body (7). The inside of the mounting box (1) is fitted with an anti-tamper lock structure (9) that can only be unlocked with a special key.

2. The anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles according to claim 1, characterized in that: The top of the mounting box (1) is provided with a first placement groove (3), and the bottom of the box cover (2) is provided with a second placement groove (4). The first placement groove (3) and the second placement groove (4) are embedded with conductive sealing gaskets (5), which are made of silver-filled silicone conductive rubber material.

3. The anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles according to claim 1, characterized in that: The limiting mechanism (6) includes a placement frame (601), which is fixedly installed on the bottom of the inner wall of the mounting box (1). The side of the placement frame (601) is provided with a threaded groove, and a threaded rod (602) is threadedly connected inside the threaded groove. A baffle (603) is installed on the side of the threaded rod (602), and the baffle (603) abuts against the main body (7) of the vehicle positioning terminal.

4. The anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles according to claim 1, characterized in that: The anti-tamper lock structure (9) includes a fixing frame (901), which is fixedly installed on the inner wall of the mounting box (1). A connecting groove (902) is provided inside the fixing frame (901), and a connecting plate (903) is welded to the bottom of the box cover (2). The connecting plate (903) is adapted to the connecting groove (902).

5. A vehicle-mounted positioning terminal for sanitation vehicles that is tamper-proof and anti-interference, as described in claim 4, is characterized in that: A rotating rod (904) is rotatably mounted inside the fixed frame (901). A gear (905) is fixedly mounted on the outside of the rotating rod (904). Gear blocks (906) mesh with the gear (905) on both the upper and lower sides. A movable plate (907) is welded to the side of the gear blocks (906). A retaining plate (908) is welded to the side of the movable plate (907) away from the gear blocks (906). A retaining groove (909) adapted to the retaining plate (908) is opened on the side of the connecting plate (903). A limiting rod (910) is fixedly mounted inside the fixed frame (901). The movable plate (907) is slidably connected to the limiting rod (910).

6. A vehicle-mounted positioning terminal for sanitation vehicles that is tamper-proof and anti-interference, as described in claim 5, is characterized in that: The rotating rod (904) has a shaped groove (912) on its side, and a shaped insert rod (913) is engaged inside the shaped groove (912). A special lock (911) is welded to the side of the shaped insert rod (913).

7. The anti-tamper and anti-interference vehicle-mounted positioning terminal for sanitation vehicles according to claim 1, characterized in that: A connecting frame (10) is welded to the outside of the mounting box (1), and a lock hole protective cover (11) is threaded to the outside of the connecting frame (10).

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