Security anti-riot steel fork

Abstract

A safeguard anti-riot steel fork comprises a vertical pipe, an arc-shaped fixing plate is fixedly installed on the vertical pipe through a plurality of connecting rods, arc-shaped movable plates are slidably installed on the front side and the rear side of the arc-shaped fixing plate respectively, a through groove is formed in the arc-shaped fixing plate, a double-face rack is slidably installed in the through groove, and the double-face rack is connected with the arc-shaped fixing plate through a first spring. And pinions are respectively meshed and matched with two sides of the double-sided rack. The steel fork is simple in structure and ingenious in conception, when the steel fork is used for forking a violence person, the violence person can touch the upper end of the double-face rack, so that the two arc-shaped movable plates are rotationally closed, the violence person is surrounded through the arc-shaped fixed plate and the two arc-shaped movable plates, meanwhile, the locking mechanism is automatically locked, the two arc-shaped movable plates cannot be rotationally opened, and the violence person can be prevented from being damaged. And the locking mechanism is located at the end, close to a user, of the vertical pipe, the violence personnel cannot unlock the locking mechanism, so that the arc-shaped movable plate cannot be opened, the violence personnel are prevented from escaping, the market requirement can be met, and the device is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the field of riot-proof steel forks, and specifically relates to a security riot-proof steel fork. Background Art

[0002] A security riot-proof steel fork is a commonly used equipment for security personnel to perform tasks. It is usually used to keep a safe distance from suspects and has a certain function of riot prevention and suppression. The patent with the authorization announcement number of CN221147342U: "A Property Security Riot Control Fork" discloses a riot-proof fork. When the violent person needs to be surrounded by an arc-shaped control fork and an arc-shaped rod in this device, it is necessary to push the arc-shaped rod to slide and close through an arc-shaped block, and then lock the arc-shaped rod and the arc-shaped control fork through a locking device. However, the arc-shaped push rod and the locking device are located at one end close to the violent person. The user generally holds the long rod at the end far from the arc-shaped push rod. During the process of the user pushing the arc-shaped block, the violent person is likely to escape. Moreover, after the violent person is surrounded, the violent person can also open the locking device by himself and escape. Therefore, we have designed a security riot-proof steel fork that is not convenient for the violent person to escape. Content of the Utility Model

[0003] The utility model provides a security riot-proof steel fork to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A security riot-proof steel fork includes a vertical pipe. An arc-shaped fixing plate is fixedly installed on the vertical pipe through several connecting rods. Arc-shaped movable plates are slidably installed on the front and back sides of the arc-shaped fixing plate respectively. A through groove is opened on the arc-shaped fixing plate. A double-sided rack is slidably installed in the through groove. The double-sided rack is connected to the arc-shaped fixing plate through a first spring. Small gears are respectively meshed and cooperated on both sides of the double-sided rack. The small gears are respectively rotatably installed below the arc-shaped fixing plate. Coaxial large gears are respectively fixedly installed on the small gears. Tooth grooves are respectively opened on the outer periphery of the arc-shaped movable plates corresponding to the large gears. The large gears are meshed and cooperated with the corresponding tooth grooves. Vertical rods are respectively fixedly installed at the lower ends of the double-sided rack. The vertical rods are slidably installed in the vertical pipe. A locking mechanism for restricting the vertical rods from moving upward and resetting is arranged on the vertical pipe.

[0006] As described above, in a security riot-proof steel fork, the locking mechanism includes a wedge-shaped plug rod. A jack is opened on the side wall of the vertical pipe. The wedge-shaped plug rod is slidably installed in the jack. The wedge-shaped plug rod is connected to the vertical pipe through a second spring. A guiding inclined surface is arranged on the upper side of the end of the wedge-shaped plug rod located in the vertical pipe. Several wedge-shaped slots are opened on the outer periphery of the vertical rod corresponding to the wedge-shaped plug rod. The lower side of the inner wall of the wedge-shaped slot is a plane, and the upper side of the inner wall of the wedge-shaped slot is an inclined surface. The wedge-shaped plug rod is inserted and cooperated with the aligned wedge-shaped slot.

[0007] A riot control steel fork as described above, a baffle is fixedly installed at one end of the wedge-shaped insertion rod away from the vertical rod.

[0008] A riot control steel fork as described above, arc-shaped dovetail sliders are respectively fixedly installed on one side of the arc-shaped movable plate close to the arc-shaped fixed plate, arc-shaped dovetail chutes are respectively opened on the front and rear sides of the arc-shaped fixed plate corresponding to the arc-shaped dovetail sliders, and the arc-shaped dovetail sliders are slidably installed in the corresponding arc-shaped dovetail chutes.

[0009] A riot control steel fork as described above, an arc-shaped push plate is fixedly installed at the upper end of the double-sided rack.

[0010] A riot control steel fork as described above, rubber pads are respectively fixedly installed at both ends of the arc-shaped movable plate.

[0011] A riot control steel fork as described above, C-shaped baffles are respectively arranged outside the small gear, the corresponding large gear and the double-sided rack, the C-shaped baffles are respectively fixedly installed on the arc-shaped fixed plate, and the C-shaped baffles enclose the small gear, the large gear and the double-sided rack.

[0012] The advantages of the present utility model are as follows: the structure of the present utility model is simple and ingenious. When using the steel fork to stab at the violent person, the violent person will touch the upper end of the double-sided rack, so that the two arc-shaped movable plates rotate and close. The violent person is surrounded by the arc-shaped fixed plate and the two arc-shaped movable plates. At the same time, the locking mechanism is automatically locked, and the two arc-shaped movable plates will not rotate and open. Moreover, the locking mechanism is located at one end of the vertical pipe close to the user, and the violent person cannot release the locking mechanism, so that the arc-shaped movable plate cannot be opened, avoiding the escape of the violent person, meeting the market demand and being suitable for popularization. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

[0014] Figure 1 It is the first structural schematic diagram of the present utility model; Figure 2 It is Figure 1 The A-direction view of Figure 3 It is the state diagram when the present utility model is in use; Figure 4 It is the second structural schematic diagram of the present utility model; Figure 5 It is Figure 4 The C-direction view of

[0015] Reference numerals: 1, vertical pipe; 2, connecting rod; 3, arc-shaped fixed plate; 4, arc-shaped movable plate; 5, through slot; 6, double-sided rack; 7, first spring; 8, pinion; 9, large gear; 10, tooth groove; 11, vertical rod; 12, rotating shaft; 20, wedge-shaped insertion rod; 21, insertion hole; 22, second spring; 23, wedge-shaped slot; 30, baffle; 40, arc-shaped dovetail slider; 41, arc-shaped dovetail chute; 50, arc-shaped push plate; 60, rubber pad; 70, C-shaped baffle. Detailed implementation mode

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] A security and riot control steel fork, as Figure 1 、 2As shown in Figures 3, 4, and 5, it includes a vertical pipe 1. An arc-shaped fixed plate 3 is fixedly installed on the vertical pipe 1 through several connecting rods 2. Arc-shaped movable plates 4 are slidably installed on the front and rear sides of the arc-shaped fixed plate 3 respectively. The arc-shaped fixed plate 3 and the arc-shaped movable plate 4 are coaxially arranged. A through groove 5 is opened on the arc-shaped fixed plate 3. A double-sided rack 6 is slidably installed in the through groove 5. The double-sided rack 6 is connected to the arc-shaped fixed plate 3 through a first spring 7. The first spring 7 is sleeved on the outer periphery of the double-sided rack 6. One end of the first spring 7 is fixedly connected to one side of the double-sided rack 6, and the other end of the first spring 7 is fixedly connected to the inner periphery of the arc-shaped fixed plate 3. Small gears 8 are respectively meshed and cooperated on both sides of the double-sided rack 6. The small gears 8 are respectively rotatably installed below the arc-shaped fixed plate 3. Coaxial large gears 9 are respectively fixedly installed on the small gears 8. Coaxial rotating shafts 12 are respectively fixedly installed between the small gears 8 and the corresponding large gears 9. The outer periphery of the rotating shaft 12 is respectively rotatably connected to the inner periphery of the bearing seat. The outer periphery of the bearing seat is respectively fixedly installed on the outer periphery of the arc-shaped fixed plate 3. Tooth grooves 10 are respectively opened on the outer periphery of the arc-shaped movable plate 4 corresponding to the large gears 9. The tooth grooves 10 are coaxially arranged with the arc-shaped movable plate 4. The large gears 9 are meshed and cooperated with the corresponding tooth grooves 10. The large gears 9 on the left and right sides are successively meshed and cooperated with the tooth grooves 10 on the arc-shaped movable plates 4 on the front and rear sides. Vertical rods 11 are respectively fixedly installed at the lower ends of the double-sided rack 6. The vertical rods 11 are slidably installed in the vertical pipe 1. The vertical rods 11 and the vertical pipe 1 are coaxially arranged. A locking mechanism for restricting the upward movement and reset of the vertical rods 11 is provided on the vertical pipe 1. The locking mechanism is located at the lower end of the vertical pipe 1. The structure of the utility model is simple and ingenious. When using a steel fork to stab at the perpetrator, the perpetrator will touch the upper end of the double-sided rack 6, so that the two arc-shaped movable plates 4 rotate and close. The perpetrator is surrounded by the arc-shaped fixed plate 3 and the two arc-shaped movable plates 4. At the same time, the locking mechanism automatically locks, and the two arc-shaped movable plates 4 will not rotate and open. Moreover, the locking mechanism is located at one end of the vertical pipe 1 close to the user, and the perpetrator cannot release the locking mechanism, so that the arc-shaped movable plates 4 cannot be opened, avoiding the escape of the perpetrator, meeting the market demand, and being suitable for promotion.When using the utility model, hold the vertical pipe 1 by hand and fork the steel fork at the perpetrator. After the perpetrator touches the upper end of the double-sided rack 6, it will push the double-sided rack 6 to slide downward along the through slot 5, thereby driving the vertical rod 11 to move downward. The first spring 7 is compressed. The double-sided rack 6 drives the small gear 8, large gear 9 and rotating shaft 12 on the left to rotate clockwise, and the small gear 8, large gear 9 and rotating shaft 12 on the right to rotate counterclockwise. The large gear 9 on the left drives the front arc-shaped movable plate 4 to rotate counterclockwise along the axis of the arc-shaped fixed plate 3 through the tooth slot 10, and the large gear 9 on the right drives the rear arc-shaped movable plate 4 to rotate clockwise along the axis of the arc-shaped fixed plate 3. The two arc-shaped movable plates 4 rotate and close to enclose the perpetrator together with the arc-shaped fixed plate 3, and the locking mechanism locks the vertical rod 11, and the arc-shaped movable plate 4 cannot be rotated and opened by the perpetrator, preventing the perpetrator from escaping; similarly, when the two arc-shaped movable plates 4 need to be rotated and opened, the user releases the limit of the locking mechanism on the vertical rod 11. Under the elastic force of the first spring 7, the vertical rod 11 and the double-sided rack 6 move upward and reset, and then the small gear 8, large gear 9 and arc-shaped movable plate 4 reset, and the two arc-shaped movable plates 4 rotate and open.

[0018] Specifically, as shown in the figure, the locking mechanism in this embodiment includes a wedge-shaped plug rod 20. A jack 21 is opened on the side wall of the vertical pipe 1. The wedge-shaped plug rod 20 is slidably installed in the jack 21. The wedge-shaped plug rod 20 is connected to the vertical pipe 1 through a second spring 22. The second spring 22 is sleeved on the outer periphery of the wedge-shaped plug rod 20. One end of the second spring 22 is fixedly connected to the outer periphery of the wedge-shaped plug rod 20, and the other end of the second spring 22 is fixedly connected to the outer periphery of the vertical pipe 1. A guiding inclined surface is provided on the upper side of the end of the wedge-shaped plug rod 20 located inside the vertical pipe 1. A plurality of wedge-shaped slots 23 are opened on the outer periphery of the vertical rod 11 corresponding to the wedge-shaped plug rod 20. The lower side of the inner wall of the wedge-shaped slot 23 is a plane, and the upper side of the inner wall of the wedge-shaped slot 23 is an inclined surface. The wedge-shaped plug rod 20 is inserted and matched with the aligned wedge-shaped slot 23. When the upper end of the double-sided rack 6 is pushed downward, the vertical rod 11 slides downward in the vertical pipe 1. Under the pushing action of the inner wall of the wedge-shaped slot 23 and the guiding action of the inclined surface of the wedge-shaped plug rod 20, the wedge-shaped plug rod 20 moves away from the vertical rod 11, and the second spring 22 elongates. When the vertical rod 11 no longer moves downward, under the elastic force of the second spring 22, the wedge-shaped plug rod 20 is inserted into the aligned wedge-shaped slot 23. Under the limiting action of the wedge-shaped plug rod 20, the vertical rod 11 and the double-sided rack 6 cannot move upward and reset under the elastic force of the first spring 7, but the wedge-shaped plug rod 20 does not prevent the vertical rod 11 from continuing to move downward; when the vertical rod 11 needs to move upward and reset, pull the wedge-shaped plug rod 20 in the direction away from the vertical rod 11 to make the wedge-shaped plug rod 20 no longer inserted and matched with the wedge-shaped slot 23. Under the elastic force of the first spring 7, the double-sided rack 6 and the vertical rod 11 move upward and reset.

[0019] Specifically, as shown in the figure, the end of the wedge-shaped rod 20 in this embodiment away from the vertical rod 11 is fixedly installed with a baffle 30. Pulling the wedge-shaped rod 20 through the baffle 30 is more convenient and labor-saving.

[0020] Further, as shown in the figure, the arc-shaped movable plate 4 of the present embodiment is respectively fixedly installed with an arc-shaped dovetail slider 40 on one side close to the arc-shaped fixed plate 3, and the front and rear sides of the arc-shaped fixed plate 3 are respectively provided with an arc-shaped dovetail slide groove 41 corresponding to the arc-shaped dovetail slider 40, and the arc-shaped dovetail slider 40, the arc-shaped dovetail slide groove 41 and the arc-shaped movable plate 4 are coaxially arranged, and the arc-shaped dovetail slider 40 is slidably installed in the corresponding arc-shaped dovetail slide groove 41, and the arc-shaped dovetail slider 40 will not slide out of the corresponding arc-shaped dovetail slide groove 41. When the two arc-shaped movable plates 4 rotate along the axis of the arc-shaped fixed plate 3, the arc-shaped dovetail slider 40 slides in the corresponding arc-shaped dovetail slide groove 41.

[0021] Further, as shown in the figure, the upper end of the double-sided rack 6 in this embodiment is fixedly mounted with an arc-shaped push plate 50. The area of ​​the arc-shaped push plate 50 is larger than the area of ​​the upper end of the double-sided rack 6, and the arc-shaped push plate 50 is more convenient to contact with the violent personnel, thereby pushing the double-sided rack 6 to move downward.

[0022] Further, as shown in the figure, the two ends of the arc-shaped movable plate 4 in this embodiment are respectively fixedly installed with rubber pads 60. The rubber pads 60 are softer than the arc-shaped movable plate 4, and the rubber pads 60 can prevent the violent person from being pinched when the two arc-shaped movable plates 4 rotate and close.

[0023] Furthermore, as shown in the figure, the outer sides of the pinion 8 and the corresponding large gear 9 and the double-sided rack 6 in this embodiment are respectively provided with C-shaped baffles 70, which are respectively fixedly mounted on the arc-shaped fixing plate 3, and the C-shaped baffles 70 enclose the pinion 8, the large gear 9 and the double-sided rack 6. The C-shaped baffles 70 can prevent people's fingers from being inserted between the pinion 8 and the double-sided rack 6 and being pinched, and can also prevent foreign objects from being stuck between the pinion 8 and the double-sided rack 6 to affect the transmission of the double-sided rack 6 and the pinion 8.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A riot-proof steel fork, comprising a vertical tube (1), on which an arc-shaped fixing plate (3) is fixedly mounted via a plurality of connecting rods (2), characterized in that: The front and rear sides of the arc-shaped fixed plate (3) are respectively slidably mounted with an arc-shaped movable plate (4); a through groove (5) is provided on the arc-shaped fixed plate (3); a double-sided rack (6) is slidably mounted in the through groove (5); the double-sided rack (6) and the arc-shaped fixed plate (3) are connected via a first spring (7); small gears (8) are respectively meshed and matched on the two sides of the double-sided rack (6); the small gears (8) are respectively rotatably mounted below the arc-shaped fixed plate (3); a coaxial large gear (9) is respectively fixedly mounted on the small gear (8); tooth grooves (10) are respectively provided on the outer circumference of the arc-shaped movable plate (4) corresponding to the large gear (9); the large gear (9) meshes and matches with the corresponding tooth grooves (10); a vertical rod (11) is respectively fixedly mounted on the lower end of the double-sided rack (6); the vertical rod (11) is slidably mounted in the vertical pipe (1); and a locking mechanism for limiting the vertical rod (11) from moving upward and resetting is provided on the vertical pipe (1).

2. The anti-riot steel fork according to claim 1, characterized in that: The locking mechanism comprises a wedge-shaped inserting rod (20), a plug hole (21) is provided on the side wall of the vertical tube (1), the wedge-shaped inserting rod (20) is slidably installed in the plug hole (21), the wedge-shaped inserting rod (20) and the vertical tube (1) are connected via a second spring (22), a guiding inclined surface is provided on the upper side of one end of the wedge-shaped inserting rod (20) located in the vertical tube (1), a plurality of wedge-shaped slots (23) are provided on the outer periphery of the vertical rod (11) corresponding to the wedge-shaped inserting rod (20), the lower side of the inner wall of the wedge-shaped slot (23) is a plane, the upper side of the inner wall of the wedge-shaped slot (23) is an inclined surface, and the wedge-shaped inserting rod (20) is plugged and matched with the aligned wedge-shaped slots (23).

3. The anti-riot steel fork according to claim 2, characterized in that: A baffle plate (30) is fixedly mounted on one end of the wedge-shaped insertion rod (20) away from the vertical rod (11).

4. The anti-riot steel fork according to claim 1, characterized in that: The arc-shaped movable plate (4) is fixedly installed with an arc-shaped dovetail slider (40) on one side close to the arc-shaped fixed plate (3), and the front and rear sides of the arc-shaped fixed plate (3) are respectively provided with arc-shaped dovetail sliding grooves (41) corresponding to the arc-shaped dovetail slider (40), and the arc-shaped dovetail slider (40) is slidably installed in the corresponding arc-shaped dovetail sliding grooves (41).

5. The anti-riot steel fork according to claim 1, characterized in that: An arc-shaped push plate (50) is fixedly mounted on the upper end of the double-sided rack (6).

6. The anti-riot steel fork according to claim 1, characterized in that: Rubber pads (60) are respectively fixedly mounted on both ends of the arc-shaped movable plate (4).

7. The anti-riot steel fork according to claim 1, characterized in that: The outer sides of the pinion (8), the corresponding large gear (9) and the double-sided rack (6) are respectively provided with C-shaped baffles (70), which are respectively fixedly mounted on the arc-shaped fixed plate (3), and the C-shaped baffles (70) enclose the pinion (8), the large gear (9) and the double-sided rack (6).

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