Telescopic car arrester

Abstract

The utility model relates to the technical field of police instruments, in particular to a telescopic car arrester which comprises a car arrester connecting piece, a car arrester fixing pipe and a locking device, the car arrester fixing pipe is arranged on the car arrester connecting piece, a car arrester movable pipe is installed on the car arrester fixing pipe, and the locking device is detachably installed on the car arrester fixing pipe. The car arrester connecting piece is provided with a plurality of car arrester fixing pipes to serve as a firm base body for stopping a car, the car arrester fixing pipes are provided with the telescopic car arrester movable pipes, the positions of the car arrester movable pipes are limited through the locking devices, telescopic positioning can be conveniently achieved, a user can deploy the car arrester on site, and the car arrester connecting piece is convenient to use. Different extension lengths are used according to defense deployment requirements, a single police officer can independently operate, multiple police officers can flexibly operate and use the chassis respectively, the chassis can be suitable for intercepting most common social vehicle types, the overall appearance size is reduced after use, the chassis can be stored and carried on site, convenience and rapidness are achieved, and the field defense deployment efficiency and flexibility are improved.

Description

Technical Field

[0001] This utility model relates to the field of police equipment technology, specifically a telescopic vehicle stopper. Background Technology

[0002] Currently, law enforcement faces a heavy workload in vehicle management and inspection, especially in non-fixed stations and security checkpoints. The requirements for preventing vehicles from breaking through checkpoints are becoming increasingly stringent. More importantly, during law enforcement, there are occasional instances of illegal vehicles recklessly driving into areas where people gather, attempting to kill innocent people. This has a significant negative impact on society and poses a serious threat to the lives and property of surrounding staff and the public, putting pressure on law enforcement work.

[0003] Most of the existing vehicle-blocking equipment is roadblocks, including various roadblock structures such as barricades, vertical barrel structures, and sandbag stacks. They are mainly deployed in multi-section combinations. Among them, the vertical barrel structure is lightweight, but its actual vehicle-blocking effect is minimal. The barricades or sandbag stacks are relatively heavy, requiring multiple people to move them during use, making transportation laborious and installation time-consuming. They are also inconvenient for setting up temporary checkpoints for security checks, anti-smuggling, and drunk driving, and are not conducive to law enforcement work.

[0004] To address the above shortcomings, we need to develop a telescopic vehicle stopper to meet the needs of a wide range of users. Utility Model Content

[0005] In view of the problems mentioned above regarding existing vehicle blocking equipment, such as the need for multiple people to move it, labor-intensive transportation, and long deployment and installation time, the technical solution adopted by this utility model to solve these problems is as follows:

[0006] A telescopic vehicle stopper includes a vehicle stopper connector, a vehicle stopper fixing tube, and a locker. Several of the vehicle stopper fixing tubes are respectively arranged on the outer surface of the vehicle stopper connector. The vehicle stopper fixing tube is hollow and has a vehicle stopper movable tube that can extend and retract along the axial direction. The locker is detachably installed on the vehicle stopper fixing tube to restrict the installation position of the vehicle stopper movable tube.

[0007] As described above, a telescopic vehicle stopper has a through-hole fixed tube and a through-hole movable tube, and a plurality of such movable tube locking holes are axially spaced along the central axis of the movable tube.

[0008] The locking device includes a positioning pin and a locking pin. After the positioning pin passes through the locking hole of the fixed tube and the locking hole of the movable tube, the locking pin extends into the positioning pin to implement the locking state.

[0009] As described above, a telescopic vehicle stopper has a support plate between adjacent vehicle stopper fixing tubes for enhanced stability.

[0010] As described above, in a telescopic vehicle stopper, a warning sign is provided on the side of the vehicle stopper fixing tube away from the vehicle stopper connector, and the warning sign is circumferentially affixed to the outer surface of the vehicle stopper fixing tube.

[0011] And / or, a solar-powered flashing warning device is detachably mounted on the side of the vehicle stop's movable tube away from the vehicle stop connector.

[0012] As described above, in a telescopic vehicle stopper, the movable tube of the vehicle stopper is provided with a vehicle stopper anti-reverse foot on the side away from the vehicle stopper connector, and the outer edge of the vehicle stopper anti-reverse foot has a plurality of toothed anti-reverse structures arranged circumferentially around the center.

[0013] As described above, in a telescopic vehicle stopper, the vehicle stopper connector has a spherical shape, and both the vehicle stopper fixing tube and the vehicle stopper moving tube have a cylindrical structure. The inner diameter a of the fixed tube is larger than the outer diameter b of the moving tube, and the fixed tube is fixedly connected to the vehicle stopper connector.

[0014] As described above, in a telescopic vehicle stopper, at least four vehicle stopper fixing tubes are respectively arranged on the vehicle stopper connector, and the central axes of adjacent vehicle stopper fixing tubes form an obtuse angle c between the fixing tubes, the angle c being between 100 degrees and 135 degrees.

[0015] In the telescopic vehicle stopper described above, the distance d between the centers of the openings of adjacent vehicle stopper fixing tubes on the side away from the vehicle stopper connector is the same.

[0016] As described above, a telescopic vehicle stopper has a connecting lug on the outer surface of the vehicle stopper fixing tube, and adjacent telescopic vehicle stops are respectively fastened to their respective connecting lugs by chains to form a row structure.

[0017] As described above, a telescopic vehicle stopper includes at least three ground contact branches for contacting the ground and at least one vehicle stop branch erected in a direction away from the ground, with the connecting lug located on the side of the vehicle stop branch away from the vehicle stopper connector.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model uses several fixed tubes of the vehicle stopper connector as a solid base for stopping vehicles. A retractable movable tube of the vehicle stopper is installed on the fixed tube. A locking device restricts the extension or retraction position of the movable tube, allowing for easy extension and retraction. Users can deploy the defense on-site by releasing the locking device and extending the movable tubes. Different extension lengths can be used according to deployment requirements. A single officer can operate it independently, or multiple officers can operate it flexibly. It is suitable for intercepting the chassis of most common vehicles. After use, the locking device is released and the movable tubes are retracted into the fixed tubes, reducing the overall size for convenient on-site storage and carrying, improving the efficiency and flexibility of on-site deployment.

[0020] 2. Based on the telescopic design, this utility model, by setting connecting lugs on the fixing tube of the vehicle stopper, allows adjacent telescopic vehicle stops to be connected in series by a chain, forming a combined vehicle stop net structure. The chain drives the adjacent telescopic vehicle stops, achieving a more powerful interception effect. The flexible connection of the chain allows the telescopic vehicle stops to be flexibly deployed to adapt to different terrain deployment requirements. In emergencies, the series of telescopic vehicle stops can also be swung to carry out emergency interception, making it flexible and practical, further improving the efficiency and flexibility of on-site deployment.

[0021] 3. This utility model can also affix warning signs to the surface of the fixed tube of the vehicle stopper, and can also install a solar flashing warning device at the end of the movable tube of the vehicle stopper. It can remind and warn vehicles that are far away, prompting them to slow down as much as possible when they approach, thus playing an auxiliary warning role. When multiple telescopic vehicle stops are used in combination, the intensity and range of the warning can be further enhanced. Attached Figure Description

[0022] Figure 1 This is a perspective view of a telescopic vehicle stop according to the present invention.

[0023] Figure 2 This is an exploded perspective view of a telescopic vehicle stop according to the present invention.

[0024] Figure 3 This is a front view of a telescopic vehicle stop according to the present invention.

[0025] Figure 4 for Figure 3 AA section view.

[0026] Figure 5 This is a diagram illustrating the combined use of a telescopic vehicle stopper according to this utility model. Detailed Implementation

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example 1:

[0029] like Figures 1 to 4 The telescopic vehicle stopper shown includes a vehicle stopper connector 1, a vehicle stopper fixing tube 2, and a locking device 4. Several vehicle stopper fixing tubes 2 are respectively arranged on the outer surface of the vehicle stopper connector 1. The vehicle stopper fixing tube 2 is hollow and is equipped with a vehicle stopper movable tube 3 that can extend and retract along the axial direction. The locking device 4 is detachably installed on the vehicle stopper fixing tube 2 to restrict the installation position of the vehicle stopper movable tube 3.

[0030] Specifically, in this embodiment, the vehicle stop connector 1 serves as the central connecting component of the telescopic vehicle stop. Several vehicle stop fixing tubes 2 are fixedly connected through the vehicle stop connector 1 (which can be done by welding or integral molding), so that the overall structure of the telescopic vehicle stop forms a triangular pyramid-shaped support structure or a non-inverted nail structure. It can be rotated at will without affecting the interception height. This type of support structure has excellent stability. While meeting the design requirement of stable support after the bottom is placed on the ground, the height of the top off the ground can also meet the needs of intercepting vehicles. More specifically, the height of the top of the telescopic vehicle stop off the ground can be adjusted by installing or unlocking the locking device 4 to adjust the position of the vehicle stop movable tube 3 on the vehicle stop fixing tube 2. Different vehicle stop fixing tubes 2 can be adjusted independently to meet the actual deployment needs.

[0031] Specifically, in this embodiment, the center of the vehicle stop connector 1 coincides with the central axis of the vehicle stop fixing tube 2, so that the vehicle stop fixing tube 2 can be stably installed on the surface of the vehicle stop connector 1 during installation. On this basis, the central axes of several vehicle stop fixing tubes 2 are oriented in different directions in the axial direction, forming a support structure that can be stably placed. When hit by a vehicle, it is not easy to be impacted and deformed.

[0032] Before use, the user can release the locking device 4 and pull out the movable tube 3 of the vehicle stopper a certain distance, and then reinstall the locking device 4 into the fixed tube 2 of the vehicle stopper, so that the locking device 4 restricts the extension and retraction distance of the movable tube 3 of the vehicle stopper. The extension and retraction operations of several movable tubes 3 of the vehicle stopper can be performed until the user's deployment requirements and interception height are met. Multiple telescopic vehicle stoppers can be operated and placed separately.

[0033] In use, the user holds the telescopic vehicle stopper and throws it in front of the vehicle to be stopped, or places it on the road section that the vehicle to be stopped must pass, allowing the vehicle to hit it on its own. When the vehicle to be stopped comes into contact with and collides with the telescopic vehicle stopper, the end of the vehicle stopper's fixed tube 2 that contacts the ground rubs against the ground, which can quickly absorb the kinetic energy generated by the impact and shorten the interception distance. If the vehicle is still not stopped, at least two of the vehicle stopper's movable tubes 3 that are in contact with the ground become the fulcrum for flipping and form a rolling posture. When rolling, the end of one of the flipped vehicle stopper movable tubes 3 will lift the chassis of the vehicle to be stopped, and the drive wheels of the vehicle to be stopped will leave the ground, causing the vehicle to lose its driving ability and achieving the purpose of stopping the vehicle.

[0034] After use, the user can release the lock 4 and retract the movable tube 3 of the wheel stopper into the fixed tube 2 of the wheel stopper, and reinstall the lock 4 into the fixed tube 2 of the wheel stopper. This prevents the movable tube 3 of the wheel stopper from extending out of the fixed tube 2 of the wheel stopper. After all the movable tubes 3 of the wheel stopper are retracted, the overall size has become smaller, making it easier to carry and store.

[0035] In another embodiment 101 based on embodiment 1, in order to solve the problem of easy tilting and falling, it is preferable that the separation angle or separation distance between adjacent wheel stop fixing tubes 2 is the same, forming a support structure that is close to a regular triangular pyramid. More specifically, the distance d between the opening centers of adjacent wheel stop fixing tubes 2 on the side away from the wheel stop connector 1 is the same.

[0036] In another embodiment 102 based on embodiment 1, social vehicles can be divided into various types such as family sedans, SUVs, and passenger vehicles. The ground clearance of family sedans is generally in the range of 100mm to 150mm, that of SUVs is generally in the range of 150mm to 300mm, and that of passenger vehicles is generally in the range of 220mm to 370mm. The ground clearance of the top of the telescopic vehicle stopper can be adjusted by operating the locking device 4 to adjust the position of the movable tube 3 of the vehicle stopper on the fixed tube 2. The preferred heights are 350mm, 400mm, and 450mm, respectively. A telescopic vehicle stopper with a setting height of 350mm can effectively intercept general family sedans, a telescopic vehicle stopper with a setting height of 400mm can effectively intercept general SUVs, and a telescopic vehicle stopper with a setting height of 450mm can effectively intercept general passenger vehicles, thus meeting the requirements for targeted and effective interception of common types of social vehicles.

[0037] In another embodiment 103 based on embodiment 1, the main material of the telescopic vehicle stopper is preferably 16Mn. 16Mn has good yield strength, which can reach 340MPa, tensile strength between 470MPa and 630MPa, elongation of 17% to 20%, and certain plasticity. These performance indices can help the telescopic vehicle stopper to be less prone to breakage and separation when actually stopping a vehicle. After being hit by a vehicle, it can still lift the bottom of the vehicle and make it lose its forward movement.

[0038] In another embodiment 104 based on embodiment 1, the shape of the wheel stop connector 1 is preferably a hollow spherical structure, and both the wheel stop fixing tube 2 and the wheel stop movable tube 3 are preferably hollow cylindrical structures, thereby reducing the overall weight and making it easy for a single person to lift and carry, which is convenient for carrying and deployment. The inner diameter a of the cylinder of the wheel stop fixing tube 2 is larger than the outer diameter b of the cylinder of the wheel stop movable tube 3, which makes the wheel stop movable tube 3 smoother and reduces the possibility of jamming due to processing errors.

[0039] In another embodiment 105 based on embodiment 1, in order to further enhance the overall resistance to deformation of the telescopic wheel stopper, a wheel stopper support plate 5 for strengthening stability is provided between adjacent wheel stopper fixing tubes 2. The wheel stopper support plate 5 adopts a metal plate structure with a thickness between 1mm and 10mm, and is fixedly connected to the wheel stopper fixing tube 2 by welding or fastening. When the telescopic wheel stopper is impacted, the wheel stopper support plate 5 can prevent the adjacent wheel stopper fixing tubes 2 from getting close to each other and deforming, effectively improving the overall resistance to deformation of the telescopic wheel stopper and improving the wheel stopping effect.

[0040] Example 2:

[0041] Based on Example 1, in order to improve the ease of operation of the telescopic vehicle stopper, such as Figures 2 to 4 The telescopic vehicle stopper shown has a fixed tube 2 with a through fixed tube locking hole 21 and a movable tube 3 with a through movable tube locking hole 31. Several movable tube locking holes 31 are axially spaced along the central axis of the movable tube 3. The locker 4 includes a positioning pin 41 and a locking pin 42. After the positioning pin 41 passes through the fixed tube locking hole 21 and the movable tube locking hole 31, the locking pin 42 extends into the positioning pin 41 to implement the locking state.

[0042] Specifically, in this embodiment, the locking device 4 uses a pin insertion method, with the positioning pin 41 passing through the fixing tube locking hole 21 of the fixing tube 2 and the moving tube locking hole 31 of the moving tube 3 of the vehicle stopper respectively, so that the moving tube 3 of the vehicle stopper can no longer perform axial extension and retraction displacement relative to the fixing tube 2 of the vehicle stopper, thereby achieving the extension and retraction positioning function. After insertion, the locking pin 42 extends into the locking hole of the positioning pin 41 to implement the locking state, so that the positioning pin 41 cannot be dislodged from the fixing tube 2 of the vehicle stopper, forming a stable locking structure.

[0043] In another embodiment 201 based on embodiment 2, since the locking pin 42 is easily lost or misplaced when it is inserted or removed, in order to solve the problem of storage and management of the locking pin 42, the locking device 4 also includes a pin connecting rope 43 for connecting the positioning pin 41 and the locking pin 42. The pin connecting rope 43 can be made of stainless steel wire rope, which is not easily corroded or broken by the external environment, thus preventing the locking pin 42 from being lost during use.

[0044] In another embodiment 202 based on embodiment 2, since the locking pin 42 does not have a special handle for pulling when inserting or removing it, the user's hand is unlikely to generate friction to pull out the locking pin 42 by relying solely on the smooth pin shape of the locking pin 42 itself. In order to solve the problem of smoothly pulling out the locking pin 42, the locking device 4 also includes a pin ring 44 for pulling out the locking pin 42. The pin ring 44 is installed at a position of the locking pin 42 away from the positioning pin 41. When it is necessary to contact the locking device 4, the user's hand holds the pin ring 44 and pulls it out directly. The pin ring 44 drives the locking pin 42 to disengage from the locking hole of the positioning pin 41, thereby realizing the unlocked state.

[0045] Example 3:

[0046] Based on Example 1, in order to improve the warning effect of the retractable vehicle stopper, such as Figures 1 to 5 The telescopic vehicle stopper shown has a warning sign 6 on the side of the vehicle stopper fixing tube 2 away from the vehicle stopper connector 1. The warning sign 6 is circumferentially affixed to the outer surface of the vehicle stopper fixing tube 2.

[0047] Specifically, in this embodiment, the warning sign 6 is made of adhesive soft paper with reflective material. The plane position of the reflective material on the adhesive soft paper is adjusted according to the required warning content. The reflective properties allow the warning sign 6 to be seen by the vehicle driver from a distance, which makes it convenient for the vehicle driver to start slowing down slowly from a distance. This avoids the vehicle driver only seeing it when they get close, which may result in insufficient braking distance and collision with the vehicle blocking device, thus improving the warning effect.

[0048] Example 4:

[0049] Based on Example 1, in order to improve the remote warning effect of the telescopic vehicle stopper, such as Figures 1 to 5The telescopic vehicle stop shown has a solar-powered flashing warning device 7 detachably installed on the side of the vehicle stop's movable tube 3 away from the vehicle stop's connector 1.

[0050] Specifically, in this embodiment, the solar-powered flashing warning device 7 uses solar-powered light sources with different flashing colors. During use (using one of the following methods: snap-fit ​​connection, threaded connection, adhesive connection, etc.), it can be detachably installed on the end of the telescopic vehicle stop away from the ground. It can automatically charge and store electricity during the day using solar energy. No wiring is required during use, making it convenient and flexible. The flashing color and frequency can be adjusted according to the desired warning content. The flashing characteristic of the light makes the solar-powered flashing warning device 7 easily visible to drivers from a distance, allowing them to begin slowing down gradually from a distance. This avoids situations where drivers only see it when they are close enough to avoid insufficient braking distance and collision with the vehicle stop, thus improving the warning effect.

[0051] In another embodiment 401 based on embodiment 4, the bottom of the solar flashing warning device 7 can be installed with a strong magnet in the movable tube 3 of the vehicle stopper. The magnetic adsorption makes it easy for users to place and take it out at any time, and it is convenient to store and use.

[0052] Example 5:

[0053] Based on Example 1, in order to improve the remote warning effect of the telescopic vehicle stopper, such as Figures 1 to 5 The telescopic vehicle stopper shown has a warning sign 6 on the side of the vehicle stopper fixing tube 2 away from the vehicle stopper connector 1. The warning sign 6 is circumferentially affixed to the outer surface of the vehicle stopper fixing tube 2. A solar flashing warning device 7 is detachably installed on the side of the vehicle stopper movable tube 3 away from the vehicle stopper connector 1.

[0054] Specifically, in this embodiment, the warning sign 6 and the solar flashing warning device 7 are simultaneously installed on the retractable vehicle stop. By utilizing the reflective properties of the warning sign 6 and the flashing light of the solar flashing warning device 7, the retractable vehicle stop can be seen by the vehicle driver from a distance, making it convenient for the vehicle driver to start slowing down slowly from a distance. This avoids the situation where the vehicle driver only sees the device when they are close to it, resulting in insufficient braking distance and collision with the vehicle stop device, thus improving the warning effect.

[0055] Example 6:

[0056] Based on Example 1, in order to improve the braking effect of the telescopic brake on the ground, such as Figures 1 to 5 The telescopic vehicle stopper shown has a vehicle stopper anti-reverse foot 32 on the side of the vehicle stopper movable tube 3 away from the vehicle stopper connector 1. The outer edge of the vehicle stopper anti-reverse foot 32 has a number of toothed anti-reverse structures 321 arranged around the center in a circumferential manner.

[0057] Specifically, in this embodiment, the vehicle stopper's anti-reverse foot 32 adopts a flat plate structure. The anti-reverse foot 32 (which can be welded or integrally formed) is fixedly connected to the opening of the vehicle stopper's movable tube 3 for contacting the ground. The outer edge of the flat plate structure of the anti-reverse foot 32 has a triangular toothed anti-reverse structure 321 protruding outward. The toothed anti-reverse structure 321 is evenly arranged around the center of the anti-reverse foot 32. When the intercepted vehicle contacts and collides with the telescopic vehicle stopper, the anti-reverse foot 32 directly rubs against the ground. Through the force generated by the toothed anti-reverse structure 321 and the ground, the kinetic energy generated by the impact can be quickly absorbed, shortening the interception distance. If the vehicle is still not stopped, the anti-reverse foot 32 becomes the fulcrum for flipping and forms a rolling posture. When rolling, one end of the flipped anti-reverse tube 3 will lift the chassis of the intercepted vehicle, and the drive wheel of the intercepted vehicle will leave the ground, causing the intercepted vehicle to lose its driving ability, thus achieving the purpose of stopping the vehicle.

[0058] Example 7:

[0059] Based on Example 1, such as Figure 3 The telescopic vehicle stopper shown has at least four vehicle stopper fixing tubes 2 respectively arranged on the vehicle stopper connector 1. The central axes of adjacent vehicle stopper fixing tubes 2 form an obtuse angle c between fixing tubes, and the angle c ranges from 100 degrees to 135 degrees.

[0060] Specifically, in this embodiment, at least four vehicle stopper fixing tubes 2 are preferred to achieve the basic effects of stable placement and vehicle blocking. Three of the vehicle stopper fixing tubes 2 are used for support on the ground, and the three-point support prevents the telescopic vehicle stopper from easily shaking. A single vehicle stopper fixing tube 2 can be set vertically to lift the impacting vehicle and place warning items. In addition, by limiting the included angle c between adjacent vehicle stopper fixing tubes 2, the support and blocking effects of the telescopic vehicle stopper are more stable. The included angle c is preferably 120 degrees. The arrangement of the vehicle stopper fixing tubes 2 is more uniform, making the telescopic vehicle stopper closer to a regular triangular pyramid structure.

[0061] Example 8:

[0062] Based on any of the above embodiments, in order to enable the telescopic vehicle stoppers to form a row of interception effects and expand the interception range, such as... Figures 1 to 5The telescopic vehicle stopper shown has a connecting lug 22 on the outer surface of the vehicle stopper fixing tube 2. Adjacent telescopic vehicle stops can be connected by a chain 8. The two ends of the chain 8 are respectively fastened to the connecting lug 22 of different vehicle stopper moving tubes 3 to form a series row structure. The row structure can increase the interception range and form an interception net. Because the chain 8 is used for the movable connection, adjacent telescopic vehicle stops can be flexibly placed or moved. In an emergency, the telescopic vehicle stopper can also be lifted directly and thrown in front of the colliding vehicle to achieve a rapid response interception effect.

[0063] Example 9:

[0064] Based on Example 8, such as Figure 5 The telescopic vehicle stopper shown includes a vehicle stopper fixing tube 2 comprising at least three ground contact branch tubes 23 for contacting the ground and at least one vehicle stopper branch tube 24 erected in a direction away from the ground, with a connecting lug 22 located on the side of the vehicle stopper branch tube 24 away from the vehicle stopper connector 1.

[0065] Specifically, in this embodiment, preferably at least three ground-contact branch pipes 23 can achieve the basic effect of stable placement, and at least one vehicle-stopping branch pipe 24 erected in the direction away from the ground can achieve the basic effect of stopping vehicles. The three ground-contact branch pipes 23 are used to support the ground, and the three-point support makes the telescopic vehicle stopper not easily shake. The vehicle-stopping branch pipe 24 can be erected alone to lift the impacting vehicle and place warning items. In addition, setting the connecting ear 22 at a high position above the ground and installing the chain 8 can also make the chain 8 form a pedestrian blocking effect.

[0066] like Figures 1 to 5 As shown, the specific embodiments of this utility model are as follows:

[0067] Before use, the user can release the locking device 4 to pull out the positioning pin 41 from the locking hole 21 of the fixed tube and the locking hole 31 of the movable tube. After pulling out the movable tube 3 of the vehicle stopper a certain distance, the user can reinstall the locking device 4 into the fixed tube 2 of the vehicle stopper so that the positioning pin 41 is inserted into the locking hole 21 of the fixed tube and the locking hole 31 of the movable tube. Then, the locking pin 42 is used to restrict the positioning pin 41 from coming out, so that the locking device 4 restricts the extension distance of the movable tube 3 of the vehicle stopper. The extension and retraction operations of the movable tubes 3 of other vehicle stops can be performed until the deployment requirements and interception height are met. The above operations can also be performed on multiple telescopic vehicle stops and the positions can be arranged. The connecting lugs 22 of adjacent telescopic vehicle stops can be connected by chains 8 to form a series interception net.

[0068] Warning signs 6 can be affixed to the outer wall of the vehicle stopper fixing tube 2 in advance, or the solar flashing warning device 7 can be installed on the end of the telescopic vehicle stopper away from the ground after it is extended on site, so as to form an early warning effect for distant areas.

[0069] In use, the user holds the telescopic vehicle stopper and throws it in front of the dangerous vehicle's path, or places it on the path of the dangerous vehicle so that the dangerous vehicle will hit it on its own. When the dangerous vehicle hits the telescopic vehicle stopper, the stopper's anti-reverse foot 32 of the moving tube 3 contacts the ground and generates friction with the ground. The toothed anti-reverse structure 321 can quickly absorb the kinetic energy generated by the impact, shortening the interception distance. If the vehicle is still not stopped, at least two moving tubes 3 in contact with the ground become the fulcrum for flipping and forming a rolling posture. When rolling, the end of one of the flipped moving tubes 3 will lift the chassis of the intercepted vehicle, and the drive wheels of the intercepted vehicle will leave the ground, causing the intercepted vehicle to lose its driving ability, thus achieving the purpose of stopping the vehicle.

[0070] After use, the user can release the lock 4 and retract the movable tube 3 of the wheel stopper into the fixed tube 2 of the wheel stopper, and reinstall the lock 4 into the fixed tube 2 of the wheel stopper. This prevents the movable tube 3 of the wheel stopper from extending out of the fixed tube 2 of the wheel stopper. After all the movable tubes 3 of the wheel stopper are retracted, the overall size has become smaller, making it easier to carry and store.

[0071] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A retractable derail, characterized by: The application relates to a blocking device connector (1), a blocking device fixing pipe (2) and a lock (4), wherein a plurality of blocking device fixing pipes (2) are arranged on the outer surface of the blocking device connector (1) respectively, the blocking device fixing pipe (2) is hollow and is provided with a blocking device movable pipe (3) which can be extended and retracted along the axial direction, and the lock (4) is detachably arranged on the blocking device fixing pipe (2) to limit the installation position of the blocking device movable pipe (3).

2. A retractable barrier as claimed in claim 1, wherein: The blocking device fixing pipe (2) is provided with a through fixing pipe locking hole (21), the blocking device movable pipe (3) is provided with a through movable pipe locking hole (31), and a plurality of movable pipe locking holes (31) are arranged along the central axis of the blocking device movable pipe (3) in an axial direction. The lock (4) comprises a positioning pin (41) and a locking pin (42), the positioning pin (41) passes through the fixing pipe locking hole (21) and the movable pipe locking hole (31), and then the locking pin (42) extends into the positioning pin (41) to implement a locking state.

3. A retractable barrier as claimed in claim 1, wherein: Adjacent blocking device fixing pipes (2) are provided with blocking device supporting plates (5) for strengthening stability.

4. A retractable barrier as claimed in claim 1, wherein: The blocking device fixing pipe (2) is provided with a warning sign (6) on the side away from the blocking device connector (1), and the warning sign (6) is circumferentially arranged on the outer surface of the blocking device fixing pipe (2). And / or, the blocking device movable pipe (3) is detachably provided with a solar flash warning device (7) on the side away from the blocking device connector (1).

5. A retractable barrier as claimed in claim 1, wherein: The blocking device movable pipe (3) is provided with a blocking device retreat stop foot (32) on the side away from the blocking device connector (1), and the outer edge of the blocking device retreat stop foot (32) is provided with a plurality of tooth-shaped retreat stop structures (321) arranged circumferentially around the center.

6. A retractable derailleur according to claim 1, characterized in that: The outer shape of the blocking device connector (1) adopts a spherical structure, the blocking device fixing pipe (2) and the blocking device movable pipe (3) adopt cylindrical structures, the inner diameter a of the blocking device fixing pipe (2) is larger than the outer diameter b of the blocking device movable pipe (3), and the blocking device fixing pipe (2) is fixedly connected to the blocking device connector (1).

7. A retractable derail according to any one of claims 1 to 6, wherein: At least four blocking device fixing pipes (2) are arranged on the blocking device connector (1) respectively, the central axes of adjacent blocking device fixing pipes (2) form an obtuse fixed pipe included angle c, and the angle range of the fixed pipe included angle c is 100-135 degrees.

8. A retractable barrier as claimed in claim 7, wherein: The distance d between the opening centers of adjacent blocking device fixing pipes (2) away from the blocking device connector (1) is the same.

9. A retractable derail according to any one of claims 1-6, characterized in that: The outer surface of the blocking device fixing pipe (2) is provided with a coupling ear ring (22), and adjacent telescopic blocking devices are buckled on the coupling ear rings (22) of different blocking device movable pipes (3) respectively to form a row structure.

10. A retractable barrier as claimed in claim 9, wherein: The car stopper fixed pipe (2) comprises at least three ground contact branch pipes (23) for contacting the ground and at least one car stop branch pipe (24) vertically arranged towards the direction away from the ground, and the coupling lug (22) is located on the side of the car stop branch pipe (24) away from the car stopper connector (1).

Images