Police roadblock for intercepting vehicles

Abstract

The invention discloses a police roadblock for intercepting vehicles, and belongs to the technical field of police equipment. Comprising a storage unit which comprises a volute-shaped storage part, a hand-cranking disc arranged at the circle center position of the storage part, a plurality of chain block parts connected to one side of the hand-cranking disc and a plurality of chain block parts connected to the other side of the hand-cranking disc, and the chain block parts are sequentially and rotationally connected end to end; the supporting components are arranged below each group of chain block components, and the supporting components are connected to the outer side of the chain block component at the outermost end. The police roadblock for intercepting the vehicle has higher compression resistance, can effectively avoid damage during rolling, and meanwhile, has an air leakage measure with a higher retention rate on a tire, so that the air leakage effect of the device on the tire can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of police equipment, and in particular to a police roadblock for intercepting vehicles. Background Art

[0002] A police roadblock is a police device used by police officers to intercept criminals driving vehicles. In the prior art, in order to make the roadblock easy to carry, people often use a telescopic scissor-type structure to make the roadblock. It is extended and laid on the road that needs to be intercepted through a telescopic scissor-type connecting rod. Vertically upward spikes are fixed on the connecting rod. The inside of the spikes is hollow. When the intercepted vehicle passes over the roadblock, the spikes are inserted into the tire to pierce it, and the spikes remain on the tire. The tire is deflated through the through holes inside the spikes, so as to force the vehicle to stop.

[0003] However, in actual use, after the car passes over the roadblock, the scissor-type connecting rod is crushed, causing the connecting rod to bend and deform, which in turn causes its subsequent contraction to be not smooth or even unable to contract. In addition, after the spikes in the prior art are inserted into the tire, there is a lack of measures to limit and fix them on the tire, and there is a risk of detachment, resulting in a low retention rate of the spikes on the tire, which causes the roadblock to deflate the car at a slow rate and fail to stop the vehicle in time. In order to solve the above problems, we hereby propose a police roadblock for intercepting vehicles. Summary of the invention

[0004] In view of the above problems existing in the existing police roadblocks for intercepting vehicles, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a police roadblock for intercepting vehicles, and its purpose is to ensure the safety of the police roadblock itself, increase the retention rate of deflated spikes on the tire, and improve the deflation efficiency.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: comprising a storage unit, comprising a volute-shaped storage component, a hand-cranked disk arranged at the center position of the storage component, and the bottom of the hand-cranked disk extends to the inside of the storage component, multiple groups of chain block components connected to one side of the hand-cranked disk, and the multiple groups of chain block components are rotatably connected in sequence, a supporting component arranged under each group of the chain block components, and a supporting component connected to the outside of the outermost chain block component; and a deflation unit, comprising a deflation spike inserted in a setting direction on the chain block component, a driving component arranged at the axial center position of the deflation spike in a vertical direction, a limiting component arranged above the driving component, a pushing component sleeved at the middle position of the driving component, and the pushing component extends outward to the outside of the deflation spike, and a tail end component fixedly connected to the end of the deflation spike, and the end of the driving component extends into the tail end component.

[0007] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, a storage bin is provided inside the storage component, a guide groove is connected to one side of the storage bin, and the guide groove passes through the storage component and is connected to the outside, a winding shaft is provided below the hand crank, and the winding shaft is connected to the center position of the storage bin in a vertical direction, and one end of the chain block component is connected to the winding shaft.

[0008] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the chain block component includes a main chain block with a rectangular block structure, a storage groove opened on the bottom surface of the main chain block, and the supporting component is located in the storage groove, a stopper is arranged at one end of the outer side of the storage groove, and two groups of connecting ears are respectively arranged at both ends of the main chain block.

[0009] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, a receiving groove is provided inside one end of the main chain block, a slot opening upward is provided at the other end of the main chain block, and the tail end component is inserted into the slot, and a limiting block is distributed around the inner wall of the slot, a supporting spring is provided at the outer end of the limiting block, and the supporting spring extends into the main chain block.

[0010] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the supporting component includes a supporting plate located in the receiving groove, a rotating shaft arranged above one end of the supporting plate, and the rotating shaft extends upward into the receiving groove, and a spiral spring located in the receiving groove, and the inner and outer ends of the spiral spring are respectively connected to the rotating shaft and the inner wall of the receiving groove.

[0011] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the deflation spikes include six groups of spike strips distributed in a vertical direction, a deflation groove located between every two groups of the spike strips, and a cone head vertically arranged at the top of the six groups of the spike strips, and the cone head has a conical structure, and the larger end is fixedly connected to the top of the six groups of spike strips.

[0012] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the driving component includes a driving shaft located vertically at the axis of the two groups of nail strips, a threaded shaft fixedly connected above the driving shaft and coaxial with the driving shaft, a second limiting ring arranged at the end of the driving shaft, two groups of first limiting rings arranged between the driving shaft and the threaded shaft, and a plurality of groups of spiral grooves spirally coiled and distributed along the outer wall of the driving shaft.

[0013] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the limiting component includes three groups of first limiting rods distributed around the outside of the threaded shaft, and the first limiting rods are located in the air relief groove, three groups of second limiting rods are correspondingly arranged above the three groups of the first limiting rods, a first connecting ring is arranged at the top of the three groups of the second limiting rods, and the first connecting ring is threadedly sleeved on the threaded shaft, and a second connecting ring is arranged at the end position of the three groups of the first limiting rods, and the second connecting ring is located between two groups of the second limiting rings.

[0014] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the pushing component includes three groups of combined rods that are distributed around the outside of the air-deflating spikes and whose inner ends extend into the air-deflating grooves, an arc plate is connected between the three groups of combined rods, a sleeve is arranged at the central intersection of the three groups of combined rods, and the sleeve is sleeved on the driving shaft, and a plurality of groups of balls are spirally distributed on the inner wall of the sleeve, and the spiral line angle of the balls is the same as that of the spiral groove, and the outer ends of the balls extend into the spiral groove accordingly.

[0015] As a preferred solution of the police roadblock for intercepting vehicles described in the present invention, the tail end component includes a sleeve located in the accommodating groove, and the two ends of the sleeve are conical frustum structures, and a limit frame is arranged above the sleeve, and the limit frame is sleeved between two groups of the second limit rings, and an air release channel is opened inside the sleeve.

[0016] Beneficial effects of the present invention: 1. By arranging multiple groups of chain block components connected head to tail in rotation, a chain structure that can be rolled up is formed. The rotating connection method allows the device to rotate according to the pressure provided by the tire when being rolled, thereby avoiding deformation of the chain block components. In addition, the chain block-shaped chain block components occupy less space laterally than the scissor-type connecting rods and have higher pressure resistance.

[0017] 2. By setting up the deflation unit, the deflation unit can unfold its internal limiting components after piercing the tire. The limiting components are unfolded and supported inside the tire, which can firmly fix the deflation unit as a whole on the tire, greatly improving the retention rate of the deflation unit on the tire and effectively ensuring the deflation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 The figure is a schematic diagram of the overall structure of a police roadblock for intercepting vehicles according to the present invention.

[0019] Figure 2 The present invention is a schematic structural diagram of a police roadblock storage unit for intercepting vehicles.

[0020] Figure 3 The present invention is a schematic structural diagram of a police roadblock deflation unit for intercepting vehicles installed on a storage unit.

[0021] Figure 4 The present invention is a schematic diagram of the internal structure of the connection portion between the police roadblock deflation unit and the chain block component for intercepting vehicles.

[0022] Figure 5 The present invention is a schematic structural diagram of a police roadblock deflation unit for intercepting a vehicle in a state where the deflation unit is retained on a tire.

[0023] Figure 6 The present invention is a schematic structural diagram of a police roadblock chain block component and a supporting component for intercepting a vehicle.

[0024] Figure 7 The present invention is a bottom view of a police roadblock chain block component and a supporting component for intercepting a vehicle.

[0025] Figure 8 The present invention is a schematic diagram of the structural decomposition of a police roadblock deflation unit for intercepting vehicles.

[0026] Fig. 9 The present invention is a schematic structural diagram of a police roadblock pushing component for intercepting vehicles.

[0027] Fig.10 The present invention is a schematic structural diagram of the connection position between the police roadblock pushing component and the driving component for intercepting vehicles.

[0028] Reference numerals: 100, storage unit; 101, storage component; 101a, storage bin; 101b, guide groove; 102, hand crank; 102a, winding shaft; 103, chain block component; 103a, main chain block; 103b, storage groove; 103c, stopper; 103d, connecting ear; 103e, receiving groove; 103f, slot; 103g, limit block; 103h, support spring; 104, support component; 104a, support plate; 104b, rotating shaft; 104c, spiral spring; 105, traction component; 105a, traction frame; 105b, connecting rod; 200, deflation unit; 20 1. Deflating spike; 201a. Nail strip; 201b. Deflating groove; 201c. Cone head; 202. Driving component; 202a. Driving shaft; 202b. Threaded shaft; 202c. First limiting ring; 202d. Second limiting ring; 202e. Spiral groove; 203. Limiting component; 203a. First limiting rod; 203b. Second limiting rod; 203c. First connecting ring; 203d. Second connecting ring; 204. Pushing component; 204a. Combination rod; 204b. Bushing; 204c. Ball bearing; 205. Tail end component; 205a. Sleeve; 205b. Limiting frame; 205c. Deflating channel. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1 Reference Figure 1 to Figure 3, which is the first embodiment of the present invention, provides a police roadblock for intercepting vehicles, the device includes a storage unit 100, including a volute-shaped storage component 101, a hand-cranked disk 102 arranged at the center of the storage component 101, and the lower part of the hand-cranked disk 102 extends to the interior of the storage component 101, multiple groups of chain block components 103 connected to one side of the hand-cranked disk 102, and the multiple groups of chain block components 103 are rotatably connected end to end in sequence, a support component 104 arranged under each group of chain block components 103, and a support component 104 connected to the outer side of the outermost chain block component 103, the multiple groups of chain block components 103 are connected end to end to form a chain structure, the hand-cranked disk 102 is rotatably connected to the storage component 101, and the chain block component 103 can be stored in the storage component 101 by rotation, and the support component 104 is rotatably connected to the chain block Component 103 is below; and a deflation unit 200, comprising a deflation spike 201 inserted in a setting direction on the chain block component 103, a driving component 202 arranged at the axial position of the deflation spike 201 in the vertical direction, a limiting component 203 arranged above the driving component 202, a pushing component 204 sleeved on the middle position of the driving component 202, and the pushing component 204 extends outward to the outside of the deflation spike 201, and a tail end component 205 fixedly connected to the end of the deflation spike 201, and the end of the driving component 202 extends into the tail end component 205, the deflation spike 201 is fixedly connected to the tail end component 205, and the interiors of the two are the same, the driving component 202 is rotatably connected to the axial position of the deflation spike 201, and the pushing component 204 is slidably sleeved on the deflation spike 201, and can slide in the vertical direction.

[0034] During use, when the automobile tire rolls over the deflation spike 201, the deflation spike 201 will penetrate into the tire, and as the vehicle moves, the tail end component 205 will detach from the chain block component 103, and the deflation spike 201 will continue to penetrate to a certain position, at which time the outer wall of the tire will contact the pushing component 204 and exert pressure on it, and at this time the pushing component 204 under pressure will move downward and drive the driving component 202 to rotate, and the rotating driving component 202 will expand the limiting component 203 from the inside of the deflation spike 201 to the outside, and the expanded limiting component 203 can limit and fix the deflation unit 200 on the tire as a whole, thereby increasing the retention rate of the deflation unit 200 on the tire, and at this time the gas in the tire can be discharged to the outside through the deflation unit 200, thereby achieving the purpose of deflation forcing the vehicle to stop.

[0035] Among them, a storage bin 101a is opened inside the storage component 101, one side of the storage bin 101a is connected to the guide groove 101b, and the guide groove 101b passes through the storage component 101 and is connected to the outside, a winding shaft 102a is arranged below the hand crank 102, and the winding shaft 102a is vertically rotatably connected to the center position of the storage bin 101a, one end of the chain block component 103 is connected to the winding shaft 102a, the storage bin 101a is used to provide a space for storing the chain block component 103, the guide groove 101b is a trumpet-shaped opening, which is convenient for the external chain block component 103 to enter the guide groove 101b, and one end of the winding shaft 102a is rotatably connected to one end of the chain block component 103.

[0036] Furthermore, the traction component 105 includes an I-shaped traction frame 105a, a connecting rod 105b laterally connected to the side of the traction frame 105a, and the outer end of the connecting rod 105b is rotatably connected to one end of the chain block component 103. The I-shaped structure can keep the traction component 105 in a vertical direction as a whole to prevent it from tipping over on the ground, and the connecting rod 105b can be inserted and received in the guide groove 101b.

[0037] During use, the traction component 105 is stretched outward, and the traction component 105 drives the chain block component 103 of the chain-type structure to unfold outward and then be laid at a specified position. The length of the chain can be extended according to needs to meet more usage requirements. When it needs to be recycled, the hand crank 102 is turned, and the hand crank 102 will drive the chain block component 103 of the chain-type structure to move and reel through the winding shaft 102a, so that the chain block component 103 is wound on the winding shaft 102a. The pulling force generated by the winding shaft 102a when winding the chain block component 103 will store the chain composed of multiple groups of chain block components 103 into the storage bin 101a through the guide groove 101b, which plays a role of winding and storage for easy carrying.

[0038] Example 2 Reference Figures 4 to 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a chain-type structure is provided to improve the overall pressure resistance of the device and avoid deformation that would make it impossible to retract.

[0039] Compared with Example 1, further, the chain block component 103 includes a main chain block 103a of a rectangular block structure, a storage groove 103b opened on the bottom surface of the main chain block 103a, and the support component 104 is located in the storage groove 103b, a stopper 103c is arranged at one end of the outer side of the storage groove 103b, and two groups of connecting ears 103d are respectively arranged at both ends of the main chain block 103a, the thickness of the connecting ears 103d is half of that of the main chain block 103a, the bottom surface of one group of connecting ears 103d is connected to the top surface of the main chain block 103a, and the top surface of the other group of connecting ears 103d is connected to the top surface of the main chain block 103a.

[0040] During use, the connecting ears 103d at the head and tail ends of two groups of chain block components 103 that are close to each other can be staggered and overlapped, and can be rotated and connected in series by inserting rivets in the vertical direction. Multiple groups of chain block components 103 are connected in series head to tail through the connecting ears 103d to form a rotatable chain structure, so that when the device is run over by a vehicle, it can rotate according to the pressure provided by the tire, thereby avoiding deformation of the chain block components 103, and the bottom surfaces of each group of chain block components 103 are on the same horizontal plane, and there is no angular gap between them and the ground, which can enhance the overall pressure resistance of the device.

[0041] Among them, a receiving groove 103e is opened inside one end of the main chain block 103a, and a slot 103f opening upward is opened at the other end of the main chain block 103a, and the tail end component 205 is inserted into the slot 103f. A limiting block 103g is distributed around the inner wall of the slot 103f, and a supporting spring 103h is arranged at the outer end of the limiting block 103g, and the supporting spring 103h extends into the main chain block 103a.

[0042] Among them, the tail end component 205 includes a sleeve 205a located in the accommodating groove 103e, and the two ends of the sleeve 205a are conical cone structures, and a limit frame 205b is arranged above the sleeve 205a, and the limit frame 205b is sleeved between the two sets of second limit rings 202d, and an air release channel 205c is opened inside the sleeve 205a.

[0043] During use, when the tail end component 205 is inserted into the slot 103f, the truncated cone structure at the end of the sleeve 205a will squeeze the limit block 103g, forcing the support spring 103h to contract and store energy. When the sleeve 205a is fully inserted, the size of the top end of the sleeve 205a becomes smaller due to the influence of the truncated cone structure and no longer squeezes the limit block 103g. At this time, the pressure received by the support spring 103h disappears, and the limit block 103g will be pushed out. The pushed-out limit block 103g will push the tail end Component 205 is limited, and the six groups of limit blocks 103g move synchronously, which can keep the deflation unit 200 in a vertical upright direction. When the deflation unit 200 is inserted into the tire, the tire will exert an upward pulling force on it, and drive the deflation unit 200 to move upward as a whole. The upward sleeve 205a continues to press the limit block 103g through the truncated cone structure, causing it to shrink and no longer limit, thereby not hindering the deflation unit 200 from smoothly detaching from the chain block component 103 and remaining on the tire.

[0044] Among them, the supporting component 104 includes a supporting plate 104a located in the receiving groove 103b, a rotating shaft 104b arranged above one end of the supporting plate 104a, and the rotating shaft 104b extends upward into the receiving groove 103e, and a spiral spring 104c located in the receiving groove 103e, and the inner and outer ends of the spiral spring 104c are respectively connected to the rotating shaft 104b and the inner wall of the receiving groove 103e.

[0045] During use, the support plate 104a is rotatably connected to the lower part of the chain block component 103 through the rotating shaft 104b, and the spiral spring 104c, through its own elastic force, always applies an outward thrust to the support plate 104a through the rotating shaft 104b, so that the support plate 104a is always in an outwardly unfolded state, and the stopper 103c is located on one side of the support plate 104a, limiting the outward expansion range of the support plate 104a, so that it can only be set on the outside of the main chain block 103a in a square perpendicular to the main chain block 103a, and each two adjacent chain blocks The support plates 104a below the component 103 expand outward in opposite directions, that is, one expands on the left and the other expands on the right. The two sets of support plates 104a with different expansion directions can strengthen the supporting force of the chain block component 103 from both sides, thereby achieving the purpose of reinforcing the stability of the chain block component 103 when it is expanded. When the chain block component 103 is retracted into the storage bin 101a through the guide groove 101b, the support plate 104a will contact the opening of the guide groove 101b, and be squeezed to rotate inward and retract into the storage groove 103b.

[0046] The remaining structures are the same as those of Example 1.

[0047] Example 3 Reference Figures 3 to 10, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that the retention rate of the deflation unit 200 on the tire is improved to ensure the deflation effect.

[0048] Compared with Example 2, further, the deflation spike 201 includes six groups of nail strips 201a distributed in a vertical direction, a deflation groove 201b located between every two groups of nail strips 201a, and a cone head 201c vertically arranged at the top of the six groups of nail strips 201a, and the cone head 201c has a conical structure, and the larger end is fixedly connected to the top of the six groups of nail strips 201a. The six groups of nail strips 201a can surround to form a cylindrical structure, and the six groups of deflation grooves 201b can provide a channel for communication between the inside and outside of the cylindrical structure. When the deflation spike 201 is inserted into the tire, the gas in the tire can flow into the deflation spike 201 through the deflation groove 201b, and finally be discharged through the tail end component 205. The cone head 201c with a conical structure is convenient for puncturing the tire.

[0049] Among them, the driving component 202 includes a driving shaft 202a located at the axis of the two groups of nail strips 201a in the vertical direction, a threaded shaft 202b fixedly connected to the top of the driving shaft 202a and coaxial with the driving shaft 202a, a second limiting ring 202d arranged at the end of the driving shaft 202a, two groups of first limiting rings 202c arranged between the driving shaft 202a and the threaded shaft 202b, and a plurality of spiral grooves 202e spirally wound along the outer wall of the driving shaft 202a. The nail strip 201a and the air release groove 201b are an integrated structure, which is erected as a whole in the air release spike 201, and the end of the nail strip 201a is rotatably connected to the tail end component 205, and the top of the air release groove 201b is rotatably connected to the bottom of the cone head 201c.

[0050] The limiting component 203 includes three groups of first limiting rods 203a distributed around the outside of the threaded shaft 202b, and the first limiting rods 203a are located in the air release groove 201b, three groups of second limiting rods 203b are correspondingly arranged above the three groups of first limiting rods 203a, a first connecting ring 203c is arranged at the top of the three groups of second limiting rods 203b, and the first connecting ring 203c is threadedly sleeved on the threaded shaft 202b, and a second connecting ring 203d is arranged at the end position of the three groups of first limiting rods 203a, and the second connecting ring 203d is arranged at the end position of the three groups of first limiting rods 203a, and the second connecting ring 203d is arranged at the end position of the three groups of first limiting rods 203a. The connecting ring 203d is located between the two groups of second limiting rings 202d, the end of the first limiting rod 203a is rotatably connected to the outside of the second connecting ring 203d, and the top end is rotatably connected to the end of the second limiting rod 203b, and the top end of the second limiting rod 203b is rotatably connected to the outside of the first connecting ring 203c, and the first limiting rod 203a and the second limiting rod 203b located in the air relief groove 201b are limited by it and cannot move in the circumferential direction, and can only perform vertical telescopic activities in the air relief groove 201b.

[0051] The pushing component 204 includes three groups of combined rods 204a which are distributed around the outside of the deflation spike 201 and the inner ends of which extend into the deflation groove 201b. An arc plate is connected between the three groups of combined rods 204a. A sleeve 204b is arranged at the central intersection of the three groups of combined rods 204a. The sleeve 204b is sleeved on the driving shaft 202a. There are also multiple groups of balls 204c which are spirally distributed on the inner wall of the sleeve 204b. The spiral angle of the balls 204c is the same as that of the spiral groove 202e. The outer ends of the balls 204c extend into the spiral groove 202e accordingly. The combined rods 204a are connected to the inner wall of the sleeve 204b. 04a is located in the air relief groove 201b, so that the combination rod 204a is limited by the air relief groove 201b and can only slide in the vertical direction in the air relief groove 201b, and the size of the combination rod 204a is larger than the diameter of the air relief spike 201, and the ball 204c is embedded in the inner wall of the sleeve 204b and can rotate in the sleeve 204b without changing its position. The pushing component 204 located between the sleeve 204b and the driving shaft 202a can convert the direct squeezing friction between the two into the biased rotation friction, thereby avoiding wear between the two.

[0052] During use, when the tire rolls over the deflation unit 200, the cone head 201c contacts the tire first and pierces into the tire. As the tire moves, the deflation spike 201 continues to penetrate into the tire. When the front half of the deflation spike 201 pierces the tire, the outer wall of the tire squeezes the pushing component 204, causing it to slide downward along the deflation groove 201b. The downwardly moving pushing component 204 drives the shaft sleeve 204b and the ball 204c to move synchronously. The ball 204c is connected in the spiral groove 202e, so the ball 204c will apply vertical downward pressure to the driving shaft 202a through the spiral groove 202e, but the driving shaft 202a is rotatably connected between the deflation spike 201 and the tail end component 205, so the downward pressure applied by the ball 204c to the driving shaft 202a will be converted into a driving force to drive the driving shaft 202a to rotate through the oblique guidance of the spiral structure of the spiral groove 202e, and the rotating driving shaft 202a can drive the driving component 202 to rotate as a whole; The rotating driving component 202 will force the first connecting ring 203c to move downward along the threaded shaft 202b through the threaded connection between the threaded shaft 202b and the first connecting ring 203c. The downward moving first connecting ring 203c will simultaneously push and squeeze the second limiting rod 203b and the first limiting rod 203a downward, thereby causing the second limiting rod 203b and the first limiting rod 203a to deflect outward and extend out of the air deflation groove 201b. The first limiting rod 203a and the second limiting rod 203b extending out of the air deflation groove 201b can form a limiting frame with a supporting range larger than the diameter of the deflation spike 201, thereby limiting and fixing the deflation spike 201 on the tire as a whole, making it difficult to detach from the tire, thereby achieving the purpose of increasing the probability of the deflation unit 200 remaining on the tire and further ensuring the deflation effect.

[0053] The remaining structure is the same as that of Example 2.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A police roadblock for intercepting vehicles, characterized by: include, The storage unit (100) comprises a volute-shaped storage component (101), a hand-cranked disk (102) arranged at the center of the storage component (101), the bottom of the hand-cranked disk (102) extending to the inside of the storage component (101), a plurality of groups of chain block components (103) connected to one side of the hand-cranked disk (102), the plurality of groups of chain block components (103) being rotatably connected in sequence end to end, a support component (104) arranged below each group of the chain block components (103), and a support component (104) connected to the outside of the outermost chain block component (103); and a deflation unit (200) comprising: The air-deflating spike (201) is inserted in the chain block component (103) in the vertical direction, a driving component (202) is arranged at the axial center position of the air-deflating spike (201) in the vertical direction, a limiting component (203) is arranged above the driving component (202), a pushing component (204) is sleeved at the middle position of the driving component (202), and the pushing component (204) extends outward to the outside of the air-deflating spike (201), and a tail end component (205) is fixedly connected to the end of the air-deflating spike (201), and the end of the driving component (202) extends into the tail end component (205).

2. The police roadblock for intercepting vehicles according to claim 1, characterized in that: A storage bin (101a) is provided inside the storage component (101), one side of the storage bin (101a) is connected to a guide groove (101b), and the guide groove (101b) passes through the storage component (101) and is in communication with the outside. A winding shaft (102a) is provided below the hand-cranked plate (102), and the winding shaft (102a) is connected to the center of the storage bin (101a) in a vertically rotatable manner, and one end of the chain block component (103) is connected to the winding shaft (102a).

3. The police roadblock for intercepting vehicles according to claim 2, characterized in that: The chain block component (103) comprises a main chain block (103a) of a rectangular block structure, a storage groove (103b) provided on the bottom surface of the main chain block (103a), the support component (104) being located in the storage groove (103b), a stopper (103c) provided at one end outside the storage groove (103b), and two groups of connecting ears (103d) respectively provided at two ends of the main chain block (103a).

4. The police roadblock for intercepting vehicles according to claim 3, characterized in that: A receiving groove (103e) is provided inside one end of the main chain block (103a), a slot (103f) opening upward is provided at the other end of the main chain block (103a), and the tail end component (205) is inserted into the slot (103f), and a limiting block (103g) is distributed around the inner wall of the slot (103f), and a supporting spring (103h) is provided at the outer end of the limiting block (103g), and the supporting spring (103h) extends into the main chain block (103a).

5. The police roadblock for intercepting vehicles according to claim 4, characterized in that: The support component (104) comprises a support plate (104a) located in the receiving groove (103b), a rotating shaft (104b) arranged above one end of the support plate (104a), and the rotating shaft (104b) extends upward into the receiving groove (103e), and a spiral spring (104c) located in the receiving groove (103e), and the inner and outer ends of the spiral spring (104c) are respectively connected to the rotating shaft (104b) and the inner wall of the receiving groove (103e).

6. The police roadblock for intercepting vehicles according to claim 5, characterized in that: The air-deflating spikes (201) comprise six groups of spike strips (201a) vertically distributed around each other, an air-deflating groove (201b) located between every two groups of the spike strips (201a), and a cone head (201c) vertically arranged at the top ends of the six groups of the spike strips (201a), wherein the cone head (201c) is in a cone-shaped structure, with a larger end fixedly connected to the top ends of the six groups of the spike strips (201a).

7. The police roadblock for intercepting vehicles according to claim 6, characterized in that: The driving component (202) comprises a driving shaft (202a) located vertically at the axis of the two groups of nail strips (201a), a threaded shaft (202b) fixedly connected to the top of the driving shaft (202a) and coaxial with the driving shaft (202a), a second limiting ring (202d) arranged at the end of the driving shaft (202a), two groups of first limiting rings (202c) arranged between the driving shaft (202a) and the threaded shaft (202b), and a plurality of groups of spiral grooves (202e) spirally coiled and distributed along the outer wall of the driving shaft (202a).

8. The police roadblock for intercepting vehicles according to claim 7, characterized in that: The limiting component (203) comprises three groups of first limiting rods (203a) distributed around the outside of the threaded shaft (202b), and the first limiting rods (203a) are located in the air release groove (201b), three groups of second limiting rods (203b) are correspondingly arranged above the three groups of the first limiting rods (203a), first connecting rings (203c) are arranged at the top ends of the three groups of the second limiting rods (203b), and the first connecting ring (203c) is threadedly sleeved on the threaded shaft (202b), and second connecting rings (203d) are arranged at the end positions of the three groups of the first limiting rods (203a), and the second connecting ring (203d) is located between two groups of the second limiting rings (202d).

9. The police roadblock for intercepting vehicles according to claim 8, characterized in that: The pushing component (204) comprises three groups of combined rods (204a) which are distributed around the outside of the air-deflating spike (201) and whose inner ends extend into the air-deflating groove (201b); an arc-shaped plate is connected between the three groups of combined rods (204a); a shaft sleeve (204b) is arranged at the central intersection of the three groups of combined rods (204a), and the shaft sleeve (204b) is sleeved on the driving shaft (202a); and a plurality of groups of balls (204c) which are distributed in a spiral on the inner wall of the shaft sleeve (204b); the spiral line angle of the balls (204c) is the same as that of the spiral groove (202e), and the outer ends of the balls (204c) extend into the spiral groove (202e) accordingly.

10. The police roadblock for intercepting vehicles according to claim 9, characterized in that: The tail end component (205) comprises a sleeve (205a) located in the accommodating groove (103e), and both ends of the sleeve (205a) are conical frustum structures, and a limit frame (205b) is arranged above the sleeve (205a), and the limit frame (205b) is sleeved between two groups of the second limit rings (202d), and an air release channel (205c) is opened inside the sleeve (205a).

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