Clamp type shield

Abstract

The pincer type shield comprises a shield body, a starting strip and two pincer arms, the starting strip is inserted into a vertical groove from an opening of the shield body, and a first reset spring enabling the starting strip to reset is arranged on the shield body; the two clamp arms have a reset state of retracting into the vertical groove and a clamping state of extending out of the vertical groove; torsion springs are arranged at the hinged positions of the clamp arms and the shield body and enable the two clamp arms to be in a clamping state in a natural state. The shield body is provided with a locking mechanism used for locking the clamp arms and a second reset spring used for resetting the lever. According to the invention, a cutter, a stick and the like can be captured when a protector is attacked by the cutter, the stick and the like, so that the safety is improved.

Description

Technical Field

[0001] The invention relates to a clamp-type shield and belongs to the technical field of protective equipment. Background Art

[0002] Clamp-type shields are mostly used for the defender's own protection to avoid being harmed by the restless crowd. However, when the defender is attacked by the perpetrator with knives, sticks, etc., in order to protect himself from harm, the existing shield can only resist the attack of the perpetrator by blocking the knives, sticks, etc. However, when the defender is continuously attacked by knives, sticks, etc., it is relatively passive.

[0003] The applicant searched and found that the Chinese patent with the publication number CN116294818A discloses an integrated attack and defense riot control shield. The protection effect is achieved through the cooperation of the fixed inverted rack group and the locked inverted rack group. After the attacker attacks the shield with a knife, the knife is fixed to the fixed inverted rack group and the locked inverted rack group by holding the locking mechanism. The knife can be thrown out of the perpetrator's hand by swinging the arm in an instant, so as to achieve the purpose of grabbing the knife. However, in order to prevent the knife from slipping out, after clamping the knife, the defender needs to pull the locked inverted rack group to one side to clamp the knife. The operation is relatively complicated. In an emergency, it is easy to misoperate, which is not conducive to the safety of the defender. Moreover, the structure of the fixed inverted rack group and the locked inverted rack group in the patent is relatively small, which determines that the knife has a certain probability of not entering between the fixed inverted rack group and the locked inverted rack group, so there may be a situation where the knife cannot be grabbed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a shield with high safety which can seize knives, sticks and the like when a defender is attacked by knives, sticks and the like.

[0005] In order to solve the above technical problems, the present invention proposes a clamp-type shield, comprising a shield body, a starter bar and two clamp arms, wherein the starter bar and the two clamp arms are parallel; the shield body is provided with a vertical slot with a top opening, the starter bar is inserted into the vertical slot from the opening of the shield body, and the shield body is provided with a first reset spring for resetting the starter bar; both sides of the starter bar are provided with a downward slope surface that gradually shrinks inward from top to bottom; One end of the clamp arm is hinged to the shield body, and the other end is provided with a stepped first hook; the two clamp arms have a reset state of being retracted into the vertical slot, and a clamping state of being extended from the vertical slot; a torsion spring is provided at the hinge between the clamp arm and the shield body, and the torsion spring puts the two clamp arms in a clamping state in a natural state.

[0006] The shield body is provided with a locking mechanism for locking the clamp arm, and the locking mechanism includes a lever installed on the shield body, one end of the lever is provided with a second hook portion adapted to the first hook portion of the clamp arm, the other end of the lever is provided with a locking switch for fixing the lever on the shield body or loosening it from the shield body, and the shield body is provided with a second reset spring for resetting the lever; the top of the second hook portion is provided with an upper slope surface that is in close contact with the lower slope surface.

[0007] When the protector is attacked by a knife, he releases the locking switch (equivalent to a safety device) to loosen the lever from the shield body. At this time, the protector points the start bar toward the attack direction of the knife. The start bar is forced to move downward, and the lower slope of the start bar presses the upper slope of the lever to move the hook of the lever away from the start bar, so that the clamp arm is separated from the lever. Under the action of the torsion spring, the two clamp arms flip upward at the same time to clamp the knife. The protector keeps flipping the shield to achieve the knife-grabbing operation. In addition to achieving knife-grabbing, the same operation can also be used to grab sticks, etc.

[0008] It can be seen that in addition to the protective function of the traditional clamp-type shield (which cannot trigger the clamping action and can be used for ordinary blocking and collision), the present invention also has the function of seizing knives and sticks. The traditional shield can only passively resist the attack of the perpetrator by blocking knives, sticks, etc., but is changed to actively seizing knives and sticks, thereby improving the protection safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below in conjunction with the accompanying drawings.

[0010] Figure 1 This is an overall schematic diagram of the clamp-type shield.

[0011] Figure 2 Schematic diagram of the internal structure of the clamp-type shield in Example 1.

[0012] Figure 3 It is a schematic diagram of the two clamp arms in the clamping state in the first embodiment.

[0013] Figure 4 It is a schematic diagram of a lever.

[0014] Figure 5 This is a schematic diagram of the startup bar.

[0015] Figure 6 is a schematic diagram of the clamp arm.

[0016] Figure 7 This is a schematic diagram of part of the internal structure of the clamp-type shield in the second embodiment.

[0017] Figure numerals: 1. shield body; 2. start bar; 3. clamp arm; 4. vertical groove; 5. first return spring; 6. lower slope surface; 7. upper slope surface; 8. first hook; 9. second hook; 10. second return spring; 11. long hole; 12. broken window head; 13. lever; 14. guide column; 15. support rod; 16. guide rail. DETAILED DESCRIPTION

[0018] Embodiment 1: This embodiment shows a clamp-type shield, such as Figure 1-Figure 6 As shown, the shield comprises a shield body 1 , a start bar 2 and two clamp arms 3 , wherein the start bar 2 and the two clamp arms 3 are parallel, and preferably, the start bar 2 is located between the two clamp arms 3 .

[0019] The shield body 1 is made of two aluminum alloy plates connected by bolts, wherein a handle is provided on one side of the shield body 1, and the shield body 1 is provided with a vertical slot 4 with an opening at the top, and other directions are not restricted and can be closed or open. The start bar 2 is inserted into the vertical slot 4 from the opening of the shield body 1, and the shield body 1 is provided with a first reset spring 5 for resetting the start bar 2. In this embodiment, the first reset spring 5 is as shown in FIG. Figure 2 As shown, the start bar 2 is provided with a vertically extending long hole, the shield body 1 is provided with a support rod 15 passing through the long hole, and the first return spring 5 is located in the gap between the support rod 15 and the long hole. In order to make the start bar 2 move up and down more smoothly, preferably, the start bar 2 is provided with a guide rail 16, and the shield body 1 is provided with a guide groove (not shown in the figure) matching the guide rail.

[0020] One end of the clamp arm 3 is hinged to the shield body 1, and the other end is provided with a stepped first hook portion 8. The two clamp arms 3 have a reset state (such as retracting into the vertical slot 4) Figure 2 As shown), and the clamping state extending from the vertical slot 4 (as shown Figure 3 As shown); a torsion spring (not shown in the figure) is provided at the hinge of the clamp arm 3 and the shield body 1, and the torsion spring puts the two clamp arms 3 in a clamping state in a natural state. A plane with a large friction force can be provided at the top of the start bar 2 and the opposite sides of the two clamp arms 3 when in the clamping state, but in order to better clamp a knife stick, etc., preferably, the top of the start bar 2 and the opposite sides of the two clamp arms 3 when in the clamping state are provided with saw teeth. The saw teeth have the function of preventing loosening, which can better capture the knife stick and protect the defender.

[0021] The shield body 1 is provided with a locking mechanism for locking the clamp arm 3, and the locking mechanism includes a lever 13 mounted on the shield body 1, one end of the lever 13 is provided with a second hook 9 adapted to the first hook 8 of the clamp arm 3, and the other end of the lever 13 is provided with a locking switch for fixing the lever 13 on the shield body 1 or loosening it from the shield body 1, and the shield body 1 is provided with a second reset spring 10 for resetting the lever 13, one end of the second reset spring 10 is connected to the shield body 1, and the other end is connected to the lever 13. Preferably, as Figure 2 As shown, the second return spring 10 can be arranged between the shield body 1 and the first hook 8 of the clamp arm 3. The two sides of the starter bar 2 are provided with lower slope surfaces 6 that gradually shrink inward from top to bottom, and the top of the second hook 9 is provided with an upper slope surface 7 that is closely attached to the lower slope surface 6.

[0022] It should be noted that the locking switch is a prior art, for example, a simple pin can be used for limiting. When the pin is inserted between the lever 13 and the shield body 1, it is hinged and fixed to the shield body 1; when the pin is pulled out, the lever 13 is loosened from the shield body 1. Preferably, in this embodiment, the locking switch uses a limit block hinged to the shield body 1. When the limit block rotates along the hinge point, it can support the lever 13 or move away from the lever 13. When the first hook of the clamp arm 3 hooks the second hook 9 of the lever 13, the limit block can support the lever 13 to fix the lever 13 to the shield body 1. At this time, a convex point can be set on the limit block, and a corresponding concave point can be set on the shield body 1, so that when the limit block supports the lever 13, the limit block is in a stable state. Of course, a more complex locking switch in a firearm can also be used.

[0023] When the embodiment is used, when the defender is attacked by a knife, the locking switch equivalent to the safety device is released, so that the lever 13 can be loosened from the shield body 1. At this time, the defender moves the start bar 2 toward the attack direction of the knife stick, and the start bar 2 is forced to move downward, and the lower slope surface 6 of the start bar 2 presses the upper slope surface 7 of the lever 13 to move the first hook 8 of the lever 13 away from the start bar 2, so that the clamp arm 3 is separated from the lever 13, and under the action of the torsion spring, the two clamp arms 3 are turned upward at the same time, thereby clamping the knife stick, and the defender can realize the operation of seizing the knife stick. After seizing the knife stick, the clamp arm 3 and the lever 13 can be reset manually, such as pressing the clamp arm 3 downward by hand to hook the clamp arm 3 with the lever 13, and manually resetting the locking switch to fix the lever 13 and the clamp arm 3 together, and the two clamp arms 3 are in a reset state retracted into the vertical slot 4.

[0024] This embodiment can also be improved as follows: 1) The activation bar 2 is provided with a push handle (not shown in the figure) extending to the outside of the shield body 1, and the push handle can drive the activation bar 2 to move. In this way, in addition to being able to grab knives, sticks, etc. when attacked by knives, sticks, etc., the protector can also actively push the handle down to move the activation bar 2 downward, forcing the clamp arm 3 to turn from the reset state to the clamping state, thereby realizing active grabbing of knives, sticks, and further improving the safety of the protector.

[0025] 2) The shield body 1 is provided with a window breaking head 12 for realizing the window breaking operation. Furthermore, the window breaking head 12 is provided with a through hole, and the through hole is connected to a liquid storage tank for storing pepper spray. The liquid storage tank is provided with a pressure spray switch, and the window breaking head with a hole can be used to spray pepper spray to realize the protection function.

[0026] 3) The shield body 1 is provided with a strong light illumination lamp, and when the offender attacks, the strong light illumination lamp can be turned on to interfere with the line of sight.

[0027] Embodiment 2: The difference between this embodiment and embodiment 1 is that the first return spring 5 is arranged differently. Figure 7 As shown, in this embodiment, the start strip 2 is provided with a vertical guide hole, the shield body 1 is provided with a guide column 14 of the guide hole, the first return spring 5 is sleeved on the guide column 14, one end of the first return spring 5 abuts against the start strip 2, and the other end abuts against the shield body 1, for example, abuts against the bottom surface of the vertical groove in the shield body 1 or a supporting boss arranged on the shield body 1.

Claims

1. A clamp-type shield, characterized in that: The shield comprises a shield body, a starter bar and two clamp arms, wherein the starter bar and the two clamp arms are parallel; the shield body is provided with a vertical slot with a top opening, the starter bar is inserted into the vertical slot from the opening of the shield body, and the shield body is provided with a first reset spring for resetting the starter bar; both sides of the starter bar are provided with downward slope surfaces that gradually shrink inward from top to bottom; One end of the clamp arm is hinged to the shield body, and the other end is provided with a stepped first hook; the two clamp arms have a reset state retracted into the vertical slot, and a clamping state extended from the vertical slot; a torsion spring is provided at the hinge between the clamp arm and the shield body, and the torsion spring puts the two clamp arms in a clamping state in a natural state; The shield body is provided with a locking mechanism for locking the clamp arm, and the locking mechanism includes a lever installed on the shield body, one end of the lever is provided with a second hook portion adapted to the first hook portion of the clamp arm, the other end of the lever is provided with a locking switch for fixing the lever on the shield body or loosening it from the shield body, and the shield body is provided with a second reset spring for resetting the lever; the top of the second hook portion is provided with an upper slope surface that is in close contact with the lower slope surface.

2. The clamp-type shield according to claim 1, characterized in that: The top of the start strip and the opposite sides of the two clamp arms when in the clamping state are provided with serrations.

3. The clamp-type shield according to claim 1, characterized in that: The starter bar is provided with a guide rail, and the shield body is provided with a guide groove matching the guide rail.

4. The clamp-type shield according to claim 1, characterized in that: The starter strip is provided with a vertical guide hole, the shield body is provided with a guide post for the guide hole, and the first reset spring is sleeved on the guide post.

5. The clamp-type shield according to claim 1, characterized in that: The actuating strip is located between the two clamp arms.

6. The clamp-type shield according to claim 1, characterized in that: A window-breaking head is arranged on the shield body.

7. The clamp-type shield according to claim 6, characterized in that: The broken window head is provided with a through hole, and the through hole is connected to a liquid storage tank for storing pepper water, and a pressure spray switch is provided on the liquid storage tank.

8. The clamp-type shield according to claim 1, characterized in that: The shield body is provided with a strong light irradiation lamp.

9. The clamp-type shield according to claim 1, characterized in that: The start bar is provided with a push-down handle extending to the outside of the shield body.

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