A license plate screw disassembly device and a disassembly method

Abstract

The present application discloses a license plate screw disassembly device and a disassembly method. The device includes: a through hole is provided in the middle of the base along its length direction. The front mounting plate is mounted on the first side surface of the base. The rear mounting plate is mounted on the second side surface of the base opposite to the first side surface. The jaw arms are symmetrically arranged with respect to the central axis of the base, and the two jaw arms are rotatably connected between the front mounting plate and the rear mounting plate. The ejector rod fixing member is used for mounting the ejector rod; the upper part of the ejector rod fixing member is slidably mounted between the front mounting plate and the rear mounting plate, and can drive the ejector rod to pass through from one end of the through hole of the base to the other end, so that after the jaw arms clamp the anti-theft cap, the ejector rod is used to tightly press the top surface of the anti-theft cap. The driving force arm mechanism is rotatably connected between the front mounting plate and the rear mounting plate. When the driving force arm mechanism rotates, it can drive the ejector rod fixing member to move. The guiding part located at the top end of the ejector rod fixing member will push the jaw arms to open and close during the movement, so that the jaws of the jaw arms clamp the outside of the anti-theft cap.

Description

Technical Field

[0001] The present application relates to the technical field of scrapped license plates, and in particular to a license plate screw removal device and a removal method. Background Art

[0002] Currently, license plates used in automobiles need to be scrapped after recycling to prevent reuse. There are currently two ways to scrap them. One is to use a guillotine or ordinary cutting equipment to damage the license plate and take a photo for preservation. The other is to place the license plate in an automatic cutting device, which automatically identifies the license plate and transmits it to the system without manual operation. The second method has gradually become the standard process, and all license plates need to be placed in the automatic cutting device. The degree of damage to license plates currently on the market varies. Some license plates have retained sealing screws after being violently disassembled, making it difficult for humans to remove the screws from the license plate, and license plates with screws cannot be placed in the automatic cutting device. This makes removing the screws a difficult and necessary task.

[0003] By the attached Figure 1 It can be seen that the structure of the license plate with screws is, from top to bottom, a bolt cover, a sealing bolt, an anti-theft cap, a license plate, and a nut. The sealing bolt can be installed with a wrench, but cannot be removed with a wrench. After the bolt cover is covered on the anti-theft cap, it cannot be removed. The sealing bolt is used to prevent the license plate from being stolen or used as a duplicate. Since scrapped license plates are generally very worn out, many bolts have rusted to the nuts or iron plates, and according to common thinking, they can only be disassembled violently. The existing technology uses handheld equipment such as angle grinders to perform high-intensity damage to the license plate screws, which will generate a lot of noise and easily injure staff.

[0004] Therefore, how to provide a method for disassembling license plate screws to meet scrap processing standards is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a license plate screw removal device and a removal method for removing and separating license plate screws.

[0006] To achieve the above objectives, the present application provides a license plate screw removal device for removing the anti-theft cap and sealing bolt on the license plate, comprising:

[0007] The base has a through hole in the middle along its length;

[0008] a front mounting plate, mounted on the first side surface of the base, and having an area larger than that of the first side surface;

[0009] a rear mounting plate, mounted on a second side surface of the base opposite to the first side surface, and having an area larger than that of the second side surface;

[0010] The jaw arm is symmetrically arranged relative to the central axis of the base and is rotatably connected between the front mounting plate and the rear mounting plate;

[0011] The ejector rod fixing member is used to install the ejector rod. The upper portion thereof is slidably mounted between the front mounting plate and the rear mounting plate, and can drive the ejector rod to pass through the through hole from one end to the other end, so that the ejector rod can press the anti-theft cap tightly.

[0012] The driving force arm mechanism is rotatably connected between the front mounting plate and the rear mounting plate, and is used to drive the push rod fixing piece to move. The guide part located at the top end of the push rod fixing piece will push the jaw arm to open and close, so that the jaws of the jaw arm clamp the anti-theft cap.

[0013] In some embodiments, the driving force arm mechanism includes: two force application arms symmetrically arranged relative to the central axis of the base, one end of the force application arm being rotatably connected between the front mounting plate and the rear mounting plate via a first rotating shaft;

[0014] The middle part of the force arm is connected to one end of the transmission rod, and the other end of the transmission rod is connected to the bottom of the push rod fixing piece; the two force arms can approach and move away from each other, thereby driving the push rod fixing piece to approach and move away from the base.

[0015] In some embodiments, the driving end of the jaw arm is disposed between the front mounting plate and the rear mounting plate, and the driving end abuts against the guide portion at the top end of the ejector rod fixing member;

[0016] The closed end of the jaw arm extends to the outside of the gap between the front mounting plate and the rear mounting plate;

[0017] The middle portion of the jaw arm is arranged between the front mounting plate and the rear mounting plate via a second rotating shaft;

[0018] Semi-circular arc grooves are correspondingly provided on surfaces of the closed ends of the two jaw arms that are arranged opposite to each other, and the semi-circular arc grooves on both sides can be combined to form the jaws of the jaw arms.

[0019] In some embodiments, the inner wall of the jaw of the jaw arm is provided with tooth-shaped ridges.

[0020] In some embodiments, the top rod fixing member includes: a main body with a mounting hole, two sliding extensions installed on the upper part of the main body, and a guide portion arranged at the top end of the sliding extension; the sliding extension can slide in contact with the side walls of the base to make the main body approach and move away from the base.

[0021] In some embodiments, the two ends of the push rod respectively extend outward from the two ends of the mounting hole; the push rod fixing member also includes a butterfly nut, which is installed at the end of the push rod away from the base, and the extension amount of the push rod can be adjusted by rotating the butterfly nut.

[0022] In some embodiments, a roller is provided at the driving end of the jaw arm; the guiding portion includes a guiding inclined surface for contacting the guiding roller to cause the jaw arm to rotate around the second rotating shaft to close the jaws.

[0023] In some embodiments, a torsion spring is sleeved outside the first rotating shaft, and the end of the torsion spring is connected to the jaw arm; so that the two jaw arms automatically reset to the open state.

[0024] In some embodiments, the center line of the jaws is collinear with the axis of the ejector rod.

[0025] A method for removing screws, applicable to the license plate screw removal device of any one of the above, includes:

[0026] Keep the jaw arms open so that the through hole of the base is aligned with the anti-theft cap;

[0027] Drive the jaw arms to clamp the outside of the anti-theft cap through the driving force arm mechanism, and at the same time, the ejector rod presses tightly against the anti-theft cap;

[0028] Separate the anti-theft cap from the license plate and take out the sealing bolt.

[0029] Compared with the above background art, the present application is provided with a base, a front mounting plate, a rear mounting plate, jaw arms, an ejector rod fixing member and a driving force arm mechanism. A through hole is provided in the middle of the base along its own length direction. The front mounting plate is mounted on the first side surface of the base, and the area of the front mounting plate is larger than the area of the first side surface. The rear mounting plate is mounted on the second side surface of the base opposite to the first side surface, and the area of the rear mounting plate is larger than the area of the second side surface. The jaw arms are symmetrically arranged with respect to the central axis of the base, and the two jaw arms symmetrically arranged on both sides are rotatably connected between the front mounting plate and the rear mounting plate. The ejector rod fixing member is used to mount the ejector rod, and one end of the ejector rod passes through the through hole of the base after installation. The upper part of the ejector rod fixing member is slidably mounted between the front mounting plate and the rear mounting plate, and can drive the ejector rod to pass from one end of the through hole of the base to the other end, so that after the jaw arms clamp the anti-theft cap, the ejector rod presses tightly against the top surface of the anti-theft cap. The driving force arm mechanism is rotatably connected between the front mounting plate and the rear mounting plate. The rotation of the driving force arm mechanism can drive the ejector rod fixing member to move. The guiding portion located at the top end of the ejector rod fixing member will push the jaw arms to open and close during the movement, so that the jaws of the jaw arms clamp the outside of the anti-theft cap. Among them, the front mounting plate and the rear mounting plate are mounted on the base through fixing screws. This device can effectively solve the problem of removing license plate screws. Removing the sealing bolt with this device before destruction will not generate any noise, dust, and there is no danger of hurting people. Moreover, the device is simple to use and easy to master.

[0030] The present application also provides a disassembly method applicable to the above license plate screw removal device, which has the above beneficial effects and will not be elaborated herein. Description of the Drawings

[0031] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0032] Figure 1 Schematic diagram of the assembly of the license plate and the sealing screw provided by the embodiment of the present application;

[0033] Figure 2 Schematic diagram of the structure of the license plate screw disassembly device provided by the embodiment of the present application;

[0034] Figure 3 Schematic diagram of the structure of the license plate screw disassembly device with the jaws open provided by the embodiment of the present application;

[0035] Figure 4 Schematic diagram of the structure of the license plate screw disassembly device with the jaws closed provided by the embodiment of the present application;

[0036] Figure 5 Partial structure schematic diagram of the license plate screw disassembly device provided by the embodiment of the present application.

[0037] Wherein:

[0038] 1 - License plate, 11 - Anti - theft cap, 12 - Sealing bolt, 13 - Nut,

[0039] 2 - Base, 3 - Front mounting plate, 4 - Rear mounting plate,

[0040] 5 - Jaw arm, 51 - Second rotating shaft, 52 - Roller, 53 - Torsion spring,

[0041] 6 - Ejector rod fixing part, 61 - Guide part, 62 - Wing nut,

[0042] 7 - Ejector rod,

[0043] 8 - Force - applying arm, 81 - First rotating shaft, 82 - Transmission rod. Detailed implementation manners

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0045] To enable those skilled in the art of this technical field to better understand the solution of this application, the following further detailed description of this application will be given in conjunction with the accompanying drawings and specific embodiments.

[0046] Refer to the attached Figure 2 - attached Figure 5 , Figure 2 is a schematic structural diagram of the license plate screw disassembly device provided by an embodiment of this application, Figure 3 is a schematic structural diagram of the open state of the jaws of the license plate screw disassembly device provided by an embodiment of this application, Figure 4 is a schematic structural diagram of the closed state of the jaws of the license plate screw disassembly device provided by an embodiment of this application, Figure 5 is a partial structural diagram of the license plate screw disassembly device provided by an embodiment of this application, including a license plate screw disassembly device for disassembling the anti-theft cap 11 and the sealing bolt 12 located on the license plate 1, including: a base 2, a front mounting plate 3, a rear mounting plate 4, jaw arms 5, a top rod fixing member 6, and a driving force arm mechanism.

[0047] A through hole is opened in the middle of the above-mentioned base 2 along its own length direction. The front mounting plate 3 is installed on the first side surface of the above-mentioned base 2, and the area of the front mounting plate 3 is larger than the area of the above-mentioned first side surface. The rear mounting plate 4 is installed on the second side surface of the above-mentioned base 2 opposite to the first side surface, and the area of the rear mounting plate 4 is larger than the area of the above-mentioned second side surface. That is, after the front mounting plate 3 and the rear mounting plate 4 are installed, there are parts that exceed the surface of the base 2, so that a gap is formed between the front mounting plate 3 and the rear mounting plate 4.

[0048] The above-mentioned jaw arms 5 are symmetrically arranged with respect to the central axis of the above-mentioned base 2, and the two jaw arms 5 symmetrically arranged on both sides are rotatably connected between the above-mentioned front mounting plate 3 and the above-mentioned rear mounting plate 4. The above-mentioned top rod fixing member 6 is used to install the top rod 7, and one end of the top rod 7 penetrates into the through hole of the base 2 after installation. The upper part of the top rod fixing member 6 is slidably installed between the above-mentioned front mounting plate 3 and the above-mentioned rear mounting plate 4, and can drive the above-mentioned top rod 7 to penetrate from one end of the through hole of the base 2 to the other end, so that after the jaw arms 5 clamp the anti-theft cap 11, the top surface of the anti-theft cap 11 is tightened by the top rod 7.

[0049] The above-mentioned driving force arm mechanism is rotatably connected between the front mounting plate 3 and the rear mounting plate 4. The rotation of the driving force arm mechanism can drive the above-mentioned top rod fixing member 6 to move. The guiding part 61 located at the top of the above-mentioned top rod fixing member 6 will push the above-mentioned jaw arms 5 to open and close during the movement, so that the jaws of the above-mentioned jaw arms 5 clamp the outside of the anti-theft cap 11.

[0050] Among them, the front mounting plate 3 and the rear mounting plate 4 are mounted on the base 2 by fixing screws. This device can effectively solve the problem of removing license plate screws. Removing the sealing bolt 12 with this device before destruction will not produce any noise, dust, and there is no danger of hurting people. Moreover, the device is simple to use and easy to master.

[0051] Further, the above-mentioned driving force arm mechanism includes: two force-applying arms 8 symmetrically arranged with respect to the central axis of the above-mentioned base 2. One end of the above-mentioned force-applying arm 8 is rotatably connected between the above-mentioned front mounting plate 3 and the above-mentioned rear mounting plate 4 through a first rotating shaft 81. The middle part of the above-mentioned force-applying arm 8 is connected to one end of a transmission rod 82, and the other end of the above-mentioned transmission rod 82 is connected to the bottom of the above-mentioned ejector rod fixing member 6. When the user applies force, the two above-mentioned force-applying arms 8 can approach and move away from each other, thereby driving the above-mentioned ejector rod fixing member 6 to approach and move away from the above-mentioned base 2.

[0052] Further, the driving end of the above-mentioned jaw arm 5 is arranged between the above-mentioned front mounting plate 3 and the above-mentioned rear mounting plate 4, and the driving end abuts against the guiding portion 61 at the top end of the above-mentioned ejector rod fixing member 6.

[0053] The closing ends of the above-mentioned jaw arms 5 extend out of the gap between the above-mentioned front mounting plate 3 and the above-mentioned rear mounting plate 4. Semi-circular grooves are correspondingly formed on the surfaces of the closing ends of the two above-mentioned jaw arms 5 arranged opposite to each other. The two semi-circular grooves on both sides can be combined into the jaws of the above-mentioned jaw arms 5.

[0054] The middle part of the above-mentioned jaw arm 5 is arranged between the above-mentioned front mounting plate 3 and the above-mentioned rear mounting plate 4 through a second rotating shaft 51. When the above-mentioned jaw arm 5 rotates relative to the second rotating shaft 51, the closing ends can approach and move away from each other. The rotation of the above-mentioned jaw arm 5 is realized by the guiding portion 61 pushing the driving end.

[0055] Further, tooth-shaped convex lines are provided on the inner wall of the jaws of the above-mentioned jaw arm 5, and the tooth-shaped convex lines will press into the anti-theft cap 11 to increase the friction force between the jaws and the anti-theft cap 11. Similarly, any existing structure that can enhance the friction force can be applied to the inner wall of the jaws.

[0056] Further, the above-mentioned ejector rod fixing member 6 includes: a main body portion provided with a mounting hole. Two sliding extension portions are mounted on the upper part of the main body portion, and the guiding portion 61 is arranged at the top end of the sliding extension portion. The sliding extension portion can slide along the side walls on both sides of the above-mentioned base 2, so that the main body portion approaches or moves away from the above-mentioned base 2.

[0057] During the installation of the equipment, the transmission rod 82 is provided with a notch at one end connected to the push rod fixing member 6 to facilitate the installation and pushing of the push rod fixing member 6. Align the opening of the non-notched end of the transmission rod 82 with the opening in the middle of the force arm 8 and secure it with a large pin. Insert the sliding extension of the push rod fixing member 6 along the grooves on both sides of the base 2. Then align the notched openings of the two transmission rods 82 with the two openings of the push rod fixing member 6 and secure them with two small pins through the holes. The equipment is now installed.

[0058] Furthermore, the two ends of the above-mentioned push rod 7 are respectively extended to the outside of the two ends of the above-mentioned mounting hole; the above-mentioned push rod fixing part 6 also includes a butterfly nut 62, and the above-mentioned butterfly nut 62 is installed on the end of the above-mentioned push rod 7 away from the above-mentioned base 2. The extension amount of the above-mentioned push rod 7 can be adjusted by rotating the above-mentioned butterfly nut 62.

[0059] In one embodiment of the present application, an internal thread is provided in the mounting hole, and an external thread is provided at one end of the ejector pin 7. The threaded end of the ejector pin 7 is mounted on the ejector pin fixing member 6, and a butterfly nut 62 is installed on the side where the thread extends. The butterfly nut 62 is used to adjust the length of the ejector pin to prevent some sealing bolts 12 from deforming and not being able to be pushed in. The ejector pin 7 is also provided with a flat-blade notch, so that a flat-blade screwdriver can be used to tighten the ejector pin 7 to prevent the ejector pin 7 from being unable to be tightened due to rust.

[0060] Furthermore, a roller 52 is provided at the driving end of the jaw arm 5. The guide portion 61 includes a guide slope, which is used to contact and guide the roller 52 so that the jaw arm 5 rotates around the second rotation axis 51 to close the jaws.

[0061] The above-mentioned guide slope is provided on the surface of the guide portion 61 away from the base 2. When the guide portion 61 rises, the roller 52 can move obliquely along the guide slope in the direction away from the base 2, thereby driving the jaw arm 5 to rotate around the second rotating shaft 51, so that the closed ends of the two jaw arms 5 are close to each other.

[0062] Furthermore, a torsion spring 53 is sleeved on the outer side of the first rotating shaft 81 , and the ends of the torsion spring 53 are connected to the jaw arms 5 so that the jaw arms 5 on both sides are automatically reset to the open state.

[0063] Before use, pull open the force arm 8, which drives the transmission rod 82, the push rod fixing part 6 and the push rod 7 to retreat. The left and right torsion springs 53 press the roller 52 tightly against the guide inclined surface of the guide part 61 extending from the push rod fixing part 6, and the push rod fixing part 6 retreats to open the jaws.

[0064] Furthermore, the center line of the jaws is co-linear with the axis of the ejector rod 7. This ensures that when in use, the center of the jaws is aligned with the anti-theft cap 11 to ensure positioning.

[0065] When removing the sealing bolt 12 on the license plate 1, first pull the force arm 8 open, and the force arm 8 drives the transmission rod 82, the ejector fixing part 6 and the ejector 7 to retreat downward away from the base 2. The roller 52 at the rear end of the jaw arm 5 is tightly pressed on the ejector fixing part 6 under the action of the left and right torsion springs 53. The retreat of the ejector fixing part 6 will open the jaws, align the jaws with the bottom of the anti-theft cap 11, and then force the force arm 8 to close. At this time, the ejector fixing part 6 starts to move upward close to the base 2 under the action of the force arm 8, and the roller 52 opens outward along the guide slope on the ejector fixing part 6 to close the jaws. The inner diameter of the jaws is slightly smaller than the anti-theft cap 11. The tooth-shaped convex pattern on the inner circle will press into the anti-theft cap 11 to increase the friction between the anti-theft cap 11 and the anti-theft cap 11. Then continue to apply pressure to the force arm 8. At this time, the push rod 7 begins to push outward, and the concave head at the front end of the push rod 7 will support the bolt cover and continue to press inward onto the round head of the sealing bolt 12. At this time, the jaws at both ends of the push rod 7 push outward to clamp the anti-theft cap 11, which will slowly tilt the anti-theft cap 11 out and detach it from the sealing bolt 12. Open the force arm 8 to make the push rod fixing part 6 retreat again. The push rod 7 first retracts into the through hole of the base 2, and the jaws slowly open and reset automatically under the action of the left and right torsion springs 53. Then the anti-theft cap 11 is removed to complete the removal.

[0066] A screw removal method, applicable to any of the above license plate screw removal devices, comprising:

[0067] Step 1: Keep the jaw arm 5 open so that the through hole of the base 2 is aligned with the anti-theft cap 11.

[0068] Specifically, after the through hole of the base 2 is aligned with the anti-theft cap 11 , it can be ensured that the push rod 7 extends to the top surface of the anti-theft cap 11 to avoid deviation.

[0069] Step 2: The clamp arm 5 is driven by the driving force arm mechanism to clamp the outer side of the anti-theft cap 11 , and the push rod 7 pushes the anti-theft cap 11 tightly.

[0070] Step 3: Separate the anti-theft cap 11 from the license plate 1 and remove the sealing bolt 12.

[0071] Specifically, the anti-theft cap 11 is the weakest part of the screw structure of the license plate 1, and the push rod 7 can be tilted from both sides after positioning. After removing the anti-theft cap 11, it is easy to take out the sealing bolt 12.

[0072] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0073] The above has introduced in detail the license plate screw disassembly device and the disassembly method provided by this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be noted that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A license plate screw removal device for removing the anti-theft cap (11) and the sealing bolt (12) located on the license plate (1), characterized in that, Comprising: A base (2) having a through hole formed along its length in the middle; A front mounting plate (3) mounted on the first side surface of the base (2), and its area is larger than that of the first side surface; A rear mounting plate (4) mounted on the second side surface of the base (2) opposite to the first side surface, and its area is larger than that of the second side surface; Jaw arms (5) symmetrically arranged with respect to the central axis of the base (2) and rotatably connected between the front mounting plate (3) and the rear mounting plate (4); A push rod fixing member (6) for mounting a push rod (7), the upper part of which is slidably mounted between the front mounting plate (3) and the rear mounting plate (4), and can drive the push rod (7) to pass through from one end of the through hole to the other end, so that the push rod (7) presses tightly against the anti-theft cap (11); A driving force arm mechanism rotatably connected between the front mounting plate (3) and the rear mounting plate (4) for driving the push rod fixing member (6) to move. The guiding portion (61) at the top end of the push rod fixing member (6) will push the jaw arms (5) to open and close, so that the jaws of the jaw arms (5) clamp the anti-theft cap (11).

2. The license plate screw disassembly device according to claim 1, wherein, The driving force arm mechanism includes: two force application arms (8) symmetrically arranged with respect to the central axis of the base (2), and one end of each force application arm (8) is rotatably connected between the front mounting plate (3) and the rear mounting plate (4) through a first rotating shaft (81); The middle of the force application arm (8) is connected to one end of a transmission rod (82), and the other end of the transmission rod (82) is connected to the bottom of the push rod fixing member (6); the two force application arms (8) can approach and move away from each other, thereby driving the push rod fixing member (6) to approach and move away from the base (2).

3. The license plate screw disassembly device according to claim 1, characterized in that, The driving end of the jaw arm (5) is arranged between the front mounting plate (3) and the rear mounting plate (4), and the driving end abuts against the guiding portion (61) at the top end of the push rod fixing member (6); The closing end of the jaw arm (5) extends out of the gap between the front mounting plate (3) and the rear mounting plate (4); The middle of the jaw arm (5) is arranged between the front mounting plate (3) and the rear mounting plate (4) through a second rotating shaft (51); Semicircular arc grooves are correspondingly formed on the surfaces of the closing ends of the two jaw arms (5) arranged oppositely, and the two semicircular arc grooves on both sides can be combined into the jaws of the jaw arms (5).

4. The license plate screw removal device according to claim 3, wherein, Tooth-shaped convex stripes are arranged on the inner wall of the jaws of the jaw arms (5).

5. The license plate screw disassembly device according to claim 4, characterized in that, The push rod fixing member (6) includes: a main body portion provided with a mounting hole, two sliding extension portions are mounted on the upper part of the main body portion, and the guiding portion (61) is arranged at the top end of the sliding extension portion; the sliding extension portion can slide along the side walls on both sides of the base (2), so that the main body portion approaches and moves away from the base (2).

6. The license plate screw removal device according to claim 5, characterized in that, Both ends of the ejector rod (7) respectively extend out to the outside of both ends of the mounting hole; the ejector rod fixing member (6) further includes a wing nut (62), and the wing nut (62) is installed at one end of the ejector rod (7) away from the base (2). By rotating the wing nut (62), the extension amount of the ejector rod (7) can be adjusted.

7. The license plate screw disassembly device according to claim 6, wherein A roller (52) is provided at the driving end of the jaw arm (5); the guiding portion (61) includes a guiding inclined surface for contacting and guiding the roller (52) so that the jaw arm (5) rotates around the second rotating shaft (51) to close the jaws.

8. The license plate screw disassembly device according to claim 2, characterized in that, A torsion spring (53) is sleeved outside the first rotating shaft (81), and the end of the torsion spring (53) is connected to the jaw arm (5); so that the two jaw arms (5) automatically reset to the open state.

9. The license plate screw removal device according to claim 1, characterized in that, The center line of the jaws is collinear with the axis of the ejector rod (7).

10. A method for removing screws, applicable to the license plate screw removal device according to any one of the above claims 1-9, characterized in that, Including: Keep the jaw arms (5) open so that the through hole of the base (2) is aligned with the anti-theft cap (11); Drive the jaw arms (5) to clamp the outside of the anti-theft cap (11) through the driving force arm mechanism, and at the same time, the ejector rod (7) presses tightly against the anti-theft cap (11); Separate the anti-theft cap (11) from the license plate (1) and take out the sealing bolt (12).

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