Anti-disassembly fixing and sealing device

Abstract

The invention relates to the technical field of fixing and sealing devices, in particular to an anti-disassembly fixing and sealing device which comprises a mounting seat, an operation strip and a mounting bolt. A cavity is formed in the mounting seat; a mounting nut is rotationally arranged in the cavity; a first mounting hole and a second mounting hole which penetrate through the outer side of the mounting seat are formed in the two opposite sides of the cavity respectively; the second mounting hole is mounted on a vehicle through a fixing bolt; an operation hole penetrating through the cavity is formed in one side, adjacent to the first mounting hole, of the mounting seat; the operating strip is arranged in the operating hole in a sliding manner and controls the mounting nut to rotate; one end of the mounting bolt penetrates through the first mounting hole and is matched and connected with the mounting nut; and a positioning seat is arranged at the other end of the mounting bolt and is arranged in a mounting hole of the license plate in a sliding manner. The problem that it is difficult to prevent an existing fixing and sealing device from adopting various tools to dismantle bolts from the outer side is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing devices, and in particular to an anti-disassembly sealing device. Background Art

[0002] Existing license plate securing devices typically consist of a securing base, a securing cover, and bolts. During installation, the bolts are threaded through the securing base and into the license plate's mounting holes, and the securing cover is then pressed against the securing base. The bolts are typically tightened from the outside, and the securing cover is pried off the securing base using a disassembly tool. The license plate can then be removed by unscrewing the bolts. Some devices that use one-way bolts can also be unscrewed using grinding, cutting, or specialized tools, making it difficult to prevent thieves from using multiple tools to remove the bolts from the outside and steal the license plate. Summary of the Invention

[0003] The purpose of the present invention is to provide an anti-disassembly sealing device, which solves the problem that the existing sealing device is difficult to prevent the bolts from being removed from the outside using multiple tools.

[0004] The embodiments of the present invention are achieved through the following technical solutions:

[0005] An anti-disassembly sealing device, comprising:

[0006] The mounting base has a cavity therein; a mounting nut is rotatably provided in the cavity; a first mounting hole and a second mounting hole are respectively provided on opposite sides of the cavity and extend through the outside of the mounting base; the second mounting hole is mounted on the vehicle via a fixing bolt; an operating hole is provided on the side of the mounting base adjacent to the first mounting hole and extends through the cavity;

[0007] An operating bar is slidably disposed in the operating hole to control the rotation of the mounting nut;

[0008] One end of the mounting bolt passes through the first mounting hole and is connected to the mounting nut; the other end of the mounting bolt is provided with a positioning seat, which is slidably arranged in the mounting hole of the license plate.

[0009] The axes of the first mounting hole and the second mounting hole coincide with each other; and limiting structures are respectively provided on the inner side walls of the first mounting hole and the second mounting hole close to the cavity to limit the mounting nut from rotating around the axis of the first mounting hole.

[0010] On the inner side walls of the first mounting hole and the second mounting hole close to the cavity, limiting rings are respectively provided around the first mounting hole and the second mounting hole; limiting grooves are respectively provided around the screw holes at both ends of the mounting nut; the limiting rings are rotatably nested in the limiting grooves.

[0011] A plurality of support plates are circumferentially distributed on the outer side wall of the mounting nut.

[0012] The operating bar is provided with a plurality of shifting teeth; the operating bar slides along the operating hole, and the plurality of shifting teeth sequentially abut against the support plates distributed circumferentially on the mounting nut, and the mounting nut is driven to rotate through the interaction between the shifting teeth and the support plates.

[0013] It also includes a mounting ring embedded in the mounting hole of the license plate; the positioning seat is slidably arranged in the mounting ring.

[0014] The mounting ring includes a metal ring and a buffer ring; the buffer ring is located on the outer ring, and a mounting groove is provided on its outer side, and the edge of the mounting hole is embedded in the mounting groove; the metal ring is located on the inner ring, and a sliding groove is provided on its inner side; a sliding bar is provided on the side wall of the positioning seat, which is slidably embedded in the sliding groove.

[0015] The mounting seat is provided with a buffer pad on the outer side wall of the first mounting hole and the second mounting hole.

[0016] A marking head is provided on one side of the positioning seat away from the mounting seat.

[0017] A plurality of spring pieces are circumferentially arranged on the inner side wall of the cavity around the axis of the mounting nut; and the ends of the spring pieces act on the support plate.

[0018] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0019] 1. The anti-disassembly sealing device of the present invention comprises a mounting base provided between the license plate and the vehicle body. The mounting base is first fixed to the vehicle body, and then the license plate is fixed to the mounting base. This prevents direct contact between the license plate and the vehicle body, and reduces wear caused by contact friction between the license plate and the vehicle body surface during vehicle vibrations during driving.

[0020] 2. The anti-disassembly sealing device of the present invention is configured such that a mounting bolt is passed through the mounting hole of the license plate, and a positioning seat at one end of the mounting bolt is engaged in the mounting hole, thereby restricting the rotation of the mounting bolt and fixing the license plate to the mounting seat. A mounting nut is rotatably provided in the cavity of the mounting seat, and the mounting bolt is fixed by rotating the mounting nut. The mounting nut can only be inserted into the operating hole on one side of the mounting seat through a dedicated operating bar, and then the mounting nut is rotated for installation. Since the mounting seat is disposed between the license plate and the vehicle body, the operating hole is relatively concealed, and conventional tools cannot reach the internal transmission components, significantly increasing the difficulty of illegal disassembly.

[0021] 3. Several spring clips are provided on the inner wall of the cavity around the axis of the mounting nut, so that the mounting nut can only rotate in one direction during installation. The ends of the spring clips act on the support plate to limit the rotation of the mounting nut, making it difficult to rotate the mounting nut in the opposite direction for removal through the operation hole, further enhancing the anti-disassembly capability.

[0022] 4. A mounting ring can also be provided in the mounting hole of the license plate, which adopts a composite structure of a metal ring and a buffer ring. The metal ring is located in the inner ring to provide rigid support, and the buffer ring of the outer ring is embedded in the mounting hole of the license plate. The elastomer is used to isolate the direct contact between the assembly structures on both sides and the surface of the license plate. A sliding groove is provided on the inner side of the metal ring, so that the sliding bar on the positioning seat can be embedded in the sliding groove, which limits the rotation of the mounting bolt and can also adjust the position of the positioning seat in the mounting hole, thereby adjusting the installation position of the license plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the split structure of the present invention;

[0024] Figure 2 It is attached Figure 1 Cross-sectional view at point aa;

[0025] Figure 3 It is attached Figure 1 Cross-sectional view at bb in the middle;

[0026] Figure 4 It is attached Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 It is a structural diagram of the installation nut;

[0028] Figure 6 It is a structural diagram of the installation bolts;

[0029] Figure 7 This is a structural diagram of a slider.

[0030] In the figure, 1-mounting seat, 101-first mounting hole, 102-operating hole, 103-second mounting hole, 104-cavity, 105-limiting ring, 106-buffer pad, 2-mounting nut, 201-support plate, 202-limiting groove, 3-fixing bolt, 4-operating bar, 401-shifting tooth, 5-mounting bolt, 501-positioning seat, 502-identification head, 601-metal ring, 602-buffer ring. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] 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 invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] like Figure 1 and 2 As shown, an anti-disassembly sealing device includes a mounting base 1, an operating strip 4, a mounting bolt 5, and a mounting nut 2. Since existing sealing devices are all fixed from the outside of the license plate, in order to avoid removing the bolts from the outside of the license plate using multiple tools, in the present invention, when installing the sealing device, the installation operation is performed on the inside of the license plate. When removing it with tools, it is difficult to enter the inside of the license plate for removal. By fixing the mounting base 1 to a preset screw hole on the vehicle body, and then passing the mounting bolt 5 through the mounting hole of the license plate, the mounting nut 2 inside the mounting base 1 is rotated by the operating strip 4, so that the mounting bolt 5 is fixed in the mounting base 1, thereby fixing the license plate.

[0034] The mounting base 1 has a columnar cavity 104 formed therein. The mounting nut 2 is rotatably mounted within the cavity 104. The two opposite sides of the cavity 104 extend through the outside of the mounting base 1 and are provided with a first mounting hole 101 and a second mounting hole 103. The first mounting hole 101 is located on a side away from the vehicle body, and the second mounting hole 103 is located on a side close to the vehicle body. The second mounting hole 103 is connected to the vehicle body via a fixing bolt 3.

[0035] Specifically, the axes of the first mounting hole 101 and the second mounting hole 103 coincide with each other, so that the fixing bolt 3 can extend from the first mounting hole 101 into the cavity 104, and then extend from the second mounting hole 103 and be installed in the screw hole preset on the vehicle body;

[0036] Specifically, a countersunk hole structure is provided on one side of the second mounting hole 103 close to the cavity 104, and the head of the fixing bolt 3 is embedded in the countersunk hole structure to reduce interference with other structures;

[0037] Specifically, the mounting base 1 is provided with a buffer pad 106 on the outer side wall of the first mounting hole 101 and the second mounting hole 103, respectively. The cushion pads 106 are preferably rubber pads, which are used to isolate the mounting base 1 from the license plate and the vehicle body, reduce vibration transmission, avoid direct contact between the mounting base 1 and the license plate and the vehicle body, and reduce wear caused by friction between the mounting base 1 and the license plate and the vehicle body when the vehicle vibrates during driving. At the same time, the rubber pads can also fix the mounting base 1 on the vehicle body, reducing its rotational displacement.

[0038] An operating hole 102 is provided on one side adjacent to the first mounting hole 101. The hole is preferably in the shape of an elongated strip and extends through the cavity 104, providing a sliding channel for the operating bar 4. By sliding the operating bar 4 along the operating hole 102, it contacts the mounting nut 2 and drives it to rotate, and the mounting nut 2 is screwed onto the mounting bolt 5 to secure it.

[0039] A positioning seat 501 is provided at one end of the mounting bolt 5. When the other end of the mounting bolt 5 passes through the mounting hole of the license plate, the positioning seat 501 is clamped in the mounting hole and can slide in the mounting hole to adjust the position; the mounting bolt 5 passes through one end of the mounting hole and continues to pass through the first mounting hole 101, and the mounting nut 2 is screwed into the mounting bolt 5 to fix it.

[0040] In one embodiment, if Figure 3 and 4 As shown, in order to limit the rotation of the mounting nut 2 in the cavity 104 inside the mounting base 1 and ensure that the fixing bolt 3 can extend into the cavity 104 and be fixed; a limiting structure is respectively provided on the inner side wall of the first mounting hole 101 and the second mounting hole 103 near the cavity 104, which limits the rotation of the mounting nut 2 around the axis of the cavity 104, so that the axis of the mounting nut 2 coincides with the axes of the first mounting hole 101 and the second mounting hole 103, so that the fixing bolt 3 extends from the first mounting hole 101 into the cavity 104, and then passes through the screw hole in the center of the mounting nut 2 to the second mounting hole 103;

[0041] Specifically, the limiting structure is preferably a limiting ring 105 and a limiting groove 202 that are rotatably embedded in each other; the limiting ring 105 and the limiting groove 202 are both annular; limiting rings 105 are respectively provided on the inner side wall of the cavity 104 around the first mounting hole 101 and the second mounting hole 103; limiting grooves 202 are respectively provided around the screw holes of the mounting nut 2 at both ends; the limiting ring 105 and the limiting groove 202 are nested and cooperated with each other to limit the movement of the mounting nut 2 along the axial direction while allowing it to rotate around the axis;

[0042] In order to drive the operating strip 4 to rotate by contacting the mounting nut 2, as shown in FIG. Figure 5 As shown, a plurality of support plates 201 are circumferentially distributed on the outer side wall of the mounting nut 2. The support plates 201 are radially arranged to provide a fulcrum for the operating bar 4 to be moved.

[0043] In one embodiment, the operating strip 4 is in the shape of a strip plate, and the radial length of the operating hole 102 is longer than the thickness of the operating strip 4; the operating strip 4 is inserted from the side of the operating hole 102 close to the axis of the cavity 104, and slides into the cavity 104 along the operating hole 102. The end of the operating strip 4 contacts the support plate 201 of the mounting nut 2, pushing it, so that the mounting nut 2 rotates a certain angle. At this time, the operating strip 4 is located on the side of the operating hole 102 away from the axis of the cavity 104. Then, the operating strip 4 is pulled out of the operating hole 102, and the above steps are repeated. The mounting nut 2 can be driven to rotate in one direction to install the license plate. This installation method is relatively complicated, but its operating hole 102 is only provided on one side. The operating strip 4 can only control the unidirectional rotation of the mounting nut 2, and it is difficult to control its reverse rotation, so that the anti-disassembly effect is better.

[0044] In another embodiment, Figure 7 As shown, in order to facilitate installation, a gap is left between the support plate 201 and the inner wall of the cavity 104 to facilitate the passage of the operating bar 4; and the operating hole 102 penetrates from one side of the cavity 104 and exits from the other side, so that the operating bar 4 can continuously move along the operating hole 102; the operating bar 4 is long, and a plurality of shifting teeth 401 are distributed on one side surface thereof, so that the spacing between adjacent shifting teeth 401 matches the circumferential spacing between adjacent support plates 201 on the mounting nut 2; when the operating bar 4 slides unidirectionally along the operating hole 102, the shifting teeth 401 push the support plate 201 in turn, thereby driving the mounting nut 2 to rotate; this installation method is more convenient, but its operating hole 102 penetrates on both sides, and the mounting nut 2 can be controlled to rotate in both directions through the operating bar 4, but a specific operating bar 4 is still required to operate for installation or removal;

[0045] Specifically, in order to further prevent the operating bar 4 from controlling the mounting nut 2 to rotate in the opposite direction, a plurality of spring plates are provided on the inner side wall of the cavity 104 outside the operating hole 102 in the circumferential direction around the axis of the mounting nut 2, so that the circumferential spacing between adjacent spring plates matches the circumferential spacing between adjacent support plates 201 on the mounting nut 2, and the spring plates are inclined toward the rotation direction when the mounting nut 2 is fixed; the end of the spring plate acts on the support plate 201, and the cooperation between the spring plate and the support plate 201 forms a "ratchet effect", so that the mounting nut 2 is tightened by rotating in one direction during installation, and when it rotates in the opposite direction, the end of the spring plate abuts against the support plate 201, forming a mechanical anti-reverse rotation lock, thereby preventing the operating bar 4 from controlling the mounting nut 2 to rotate in the opposite direction;

[0046] In one embodiment, if Figure 2 and 6 As shown, in order to prevent the positioning seat 501 at one end of the mounting bolt 5 from directly contacting the mounting hole of the license plate, thereby preventing scratches or deformation, a mounting ring is embedded in the mounting hole of the license plate, and the positioning seat 501 is slidably arranged in the mounting ring; the mounting ring isolates the positioning seat 501 and the mounting hole to prevent direct contact;

[0047] Specifically, the mounting ring includes a metal ring 601 and a buffer ring 602; the buffer ring 602 is preferably made of rubber and is located on the outer ring. A mounting groove is provided on the outer side so that the edge of the mounting hole is embedded in the mounting groove for fixation; the metal ring 601 is made of aluminum and is located on the inner ring. The metal ring 601 and the buffer ring 602 are fixedly connected;

[0048] In order to enable the positioning seat 501 to slide in the metal ring 601, sliding grooves are provided on the upper and lower sides of the metal ring 601, and sliding bars are provided on the upper and lower side walls of the positioning seat 501. The sliding bars are slidably embedded in the sliding grooves, so that the positioning seat 501 can move along the sliding grooves, so that during installation, the installation position can be changed according to the different spacing of the preset screw holes of different vehicles.

[0049] The working principle of this embodiment is:

[0050] The present invention provides an anti-disassembly sealing device. First, the mounting base 1 is placed corresponding to the preset screw holes of the vehicle. One end of the fixing bolt 3 is inserted into the cavity 104 from the first mounting hole 101, then passed through the screw hole in the center of the mounting nut 2 to the second mounting hole 103, and then extended from the second mounting hole 103 and installed in the preset screw hole on the vehicle body. The above steps are repeated until the mounting base 1 is installed and fixed in the four preset screw holes. The operating strips 4 are pre-inserted into the operating holes 102 respectively.

[0051] Insert the four mounting rings into the license plate mounting holes respectively, so that the mounting groove of the buffer ring 602 is stuck to the edge of the mounting hole, and slide the positioning seat 501 along the mounting hole so that the mounting bolts 5 at the four corners of the license plate correspond to the four mounting seats 1 respectively;

[0052] Then extend one end of the mounting bolt 5 into the first mounting hole 101, control the operating bar 4 to move along the operating hole 102, control the mounting nut 2 to screw onto the mounting bolt 5, and then operate the operating bars 4 at the four corners according to the above steps, and screw the mounting nuts 2 diagonally in sequence until the license plate is fixed.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A disassembly-proof sealing device, characterized in that: include: The mounting base has a cavity therein; a mounting nut is rotatably provided in the cavity; a first mounting hole and a second mounting hole are respectively provided on opposite sides of the cavity and extend through the outside of the mounting base; the second mounting hole is mounted on the vehicle via a fixing bolt; an operating hole is provided on the side of the mounting base adjacent to the first mounting hole and extends through the cavity; An operating bar is slidably disposed in the operating hole to control the rotation of the mounting nut; One end of the mounting bolt passes through the first mounting hole and is connected to the mounting nut; the other end of the mounting bolt is provided with a positioning seat, which is slidably arranged in the mounting hole of the license plate.

2. The anti-disassembly sealing device according to claim 1, characterized in that: The axes of the first mounting hole and the second mounting hole coincide with each other; and limiting structures are respectively provided on the inner side walls of the first mounting hole and the second mounting hole close to the cavity to limit the mounting nut from rotating around the axis of the first mounting hole.

3. The anti-disassembly sealing device according to claim 2, characterized in that: On the inner side walls of the first mounting hole and the second mounting hole close to the cavity, limiting rings are respectively provided around the first mounting hole and the second mounting hole; limiting grooves are respectively provided around the screw holes at both ends of the mounting nut; the limiting rings are rotatably nested in the limiting grooves.

4. The anti-disassembly sealing device according to claim 3, characterized in that: A plurality of support plates are circumferentially distributed on the outer side wall of the mounting nut.

5. The anti-disassembly sealing device according to claim 4, characterized in that: The operating bar is provided with a plurality of shifting teeth; the operating bar slides along the operating hole, and the plurality of shifting teeth sequentially abut against the support plates distributed circumferentially on the mounting nut, and the mounting nut is driven to rotate through the interaction between the shifting teeth and the support plates.

6. The anti-disassembly sealing device according to claim 1, characterized in that: It also includes a mounting ring embedded in the mounting hole of the license plate; the positioning seat is slidably arranged in the mounting ring.

7. The anti-disassembly sealing device according to claim 6, characterized in that: The mounting ring includes a metal ring and a buffer ring; the buffer ring is located on the outer ring, and a mounting groove is provided on its outer side, and the edge of the mounting hole is embedded in the mounting groove; the metal ring is located on the inner ring, and a sliding groove is provided on its inner side; a sliding bar is provided on the side wall of the positioning seat, which is slidably embedded in the sliding groove.

8. The anti-disassembly sealing device according to claim 1, characterized in that: The mounting seat is provided with a buffer pad on the outer side wall of the first mounting hole and the second mounting hole.

9. The anti-disassembly sealing device according to claim 1, characterized in that: A marking head is provided on one side of the positioning seat away from the mounting seat.

10. The anti-disassembly sealing device according to claim 3, characterized in that: A plurality of spring pieces are circumferentially arranged on the inner side wall of the cavity around the axis of the mounting nut; and the ends of the spring pieces act on the support plate.

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