Latch split-type car stop fence and runaway protection device

Abstract

The present invention discloses a snap-on split-type vehicle stop railing and a runaway protection device. In the embodiment of the present invention, there is only one locking and moving member in the locking hook assembly, that is, the locking plate. The movement made by the locking plate is rotation around the pin shaft, which belongs to a lower pair. The action links are few, and the movement form is simple, so the probability of failure is greatly reduced. At the same time, the locking plate is specifically configured to be divided into a first part located on the hook seat side and a second part located on the hook head side with the opened hole as the boundary, which is equivalent to a lever as a whole. And the first part shields part of the hook groove in the initial state. When the first part is directly acted on by the locked member, the locking plate rotates, causing the second part to gradually shield part of the hook groove, thereby reversely restricting the locked member. Obviously, the action of the locking plate meets the requirement that the greater the pulling force of the locked part, the tighter the locking, and has good locking reliability.

Description

Technical Field

[0001] The present invention relates to a snap-on split car stop railing, and the present invention also relates to a sports car protection system device equipped with the snap-on split car stop railing. Background Art

[0002] According to the provisions of the "Coal Mine Safety Regulations" and the "Safety Regulations for Metal and Non-Metal Mines", a sports car protection device capable of stopping a vehicle with a broken rope or unhooked during operation shall be installed in the inclined roadway, and a car stopper capable of preventing an uncoupled vehicle from sliding into the inclined roadway shall be installed at the upper flat yard near the slope change point. At a location more than one train length below the slope change point, a car stop railing capable of preventing an unconnected vehicle from continuing to run down shall be set up.

[0003] The aforementioned car stop railings are generally wire mesh car stop railings, bottom-lifting car stop railings, bottom-lifting snap-on car stop railings, and snap-on split car stop railings. Among them, the wire mesh car stop railing is an early car stop railing and also the most mature one. The bottom-lifting car stop railing can be seen in Chinese Patent Document CN101289091A. However, since the car stop railing needs to be in a retracted state during normal operation of, for example, a mine car, in this patent document, the track needs to be broken, and a track bridge is set on the car stop railing. When the car stop railing is lowered in place, it is in the retracted state, and at this time, the track bridge is connected to the static track. This structure has been abandoned at present because, for example, the aforementioned "Coal Mine Safety Regulations" do not allow the track to be damaged.

[0004] Similarly, as in Chinese Patent Document CN102806930A, in order to meet the retraction of the car stop railing, notches still need to be constructed on the track. These notches affect the overall strength of the track, and the track filling blocks installed on the car stop railing to fill the notches to make the track complete, their position stability in the notches depends on the stiffness of the car stop railing itself, and the stiffness of the car stop railing itself is usually insufficient, so there is a risk of derailment when the mine car runs to the car stop railing.

[0005] Further, due to some inherent defects of the full-network car stop fence, it has also given rise to the emergence of other types of car stop fences. As an improvement to the bottom-lifting car stop fence, without damaging the track, it can meet the requirements for preventing runaway of, for example, mine cars. Chinese patent document CN110329306A discloses a special self-locking mechanism for underground car stop fences, which is essentially a car stop fence. Its left fence body and right fence body are each connected with a steel wire rope, and the steel wire rope is externally connected to an energy absorber. The two fence bodies can rotate on a vertical axis, so that they can rotate to, for example, the place where the mine car travels, and in the non-protection state, they can rotate out to the outside of the track without affecting the normal passage of the mine car. Since the impact force of a runaway mine car is very large, simply relying on the overhanging fence body cannot block the mine car. Therefore, when in the blocking state, the left and right fence bodies should be connected as a whole. For this purpose, a self-locking hook is installed on one fence body in this patent document. The self-locking hook includes a hook body, on which an installation positioning hole is opened. On both sides of the lower end of the hook body, a guide slider assembly is respectively installed, and a self-locking clip is installed on the guide slider assembly. A self-locking clip connection groove is opened on the self-locking clip, and the guide slider assembly and the self-locking clip are slidably connected through the self-locking clip connection groove; a push rod is arranged above the connection of the two guide slider assemblies, and a spring is installed between the connection of the two guide slider assemblies and the push rod. When the locked part on the other fence body is caught in the hook body, it will press the push rod, and the push rod will act, causing the two guide slider assemblies to act, and then the self-locking clip will clamp the locked part. Since it uses a plurality of lower pairs, the running reliability of the lower pairs is relatively poor. Especially in an environment such as a mine with high humidity and a lot of dust, it is extremely easy to cause the lower pairs, specifically the guide slider assembly to get stuck. Once the guide slider assembly gets stuck, the position of the push rod occupies part of the lock of the hook body, resulting in a decrease in the locking effect of the hook body. Summary of the Invention

[0006] The purpose of the present invention is to provide a buckle split-type car stop fence with relatively good locking reliability after buckling. The present invention also provides a runaway protection device equipped with the buckle split-type car stop fence.

[0007] In an embodiment of the present invention, a buckle split-type car stop fence is provided, including:

[0008] A frame body for installing the buckle split-type car stop fence in a roadway, and a rotating shaft is respectively provided on the left and right sides of the frame body corresponding to the roadway track;

[0009] A left swing frame is installed on the frame body through the rotating shaft on the left side of the roadway track;

[0010] A right swing frame is installed on the frame body through the rotating shaft on the right side of the roadway track, and a split-type car stop net rack is formed with the left swing frame;

[0011] A drive assembly for driving the left swing frame and the right swing frame to swing to the blocking position or swing out to the outside of the roadway track;

[0012] The locking hook assembly is installed on the left swing frame or the right swing frame and is used to connect the two swing frames when the left and right swing frames swing to the blocking position; the locking hook assembly includes a hook body having a hook head and a hook seat, and a locking plate rotatably installed on the middle side surface of the hook body through a pin shaft;

[0013] Wherein, when the locked component included in the locking hook assembly or independently arranged is introduced into the hook groove of the hook body, the acting force of the locked component on the hook body is offset to the side of the hook seat where the pin shaft is arranged; correspondingly, the locking plate is divided into a first part located on the hook seat side and a second part located on the hook head side with the opened hole as the boundary. The first part shields part of the hook groove in the initial state and is directly acted on by the locked component, and the second part avoids the locked component in the initial state and reversely restrains the locked component when the locked component reaches the bottom of the hook groove.

[0014] Optionally, a pair of locking plates are provided on each locking hook assembly, and one is provided on each side of the hook body correspondingly.

[0015] Optionally, the locking hook assembly is equipped with a tension spring. One end of the tension spring is connected to the first part, and the other end is installed on the hook head side at the position where the pin shaft is arranged on the hook body to provide a reverse torque;

[0016] Correspondingly, the torque generated by the locked component acting on the locking plate is a positive torque.

[0017] Optionally, the locking plate is a curved plate with a curved groove, and the notch of the groove has a guiding arc;

[0018] In the initial state, the notch of the locking plate and the notch of the hook body jointly guide the locked component.

[0019] Optionally, there are at least two locking hook assemblies, which are distributed in the height direction of the car stop fence.

[0020] Optionally, the locked part of the locked component is penetrated by a steel wire rope;

[0021] Wherein, the steel wire rope is used to connect the energy absorber.

[0022] Optionally, the locked component is a pipe body, and the steel wire rope passes through the inner pipe of the pipe body.

[0023] Optionally, the pipe body is a U-shaped pipe. The plane determined by the axis of the U-shaped pipe is parallel to the blocking plane determined by the left swing frame or the right swing frame, and the connecting arc pipe part for connecting the two straight pipe parts of the U-shaped pipe is locked by the locking hook assembly.

[0024] Optionally, the frame body includes:

[0025] A base, installed on the lower side of the roadway track and having base parts located on the outer sides of the left and right sides of the roadway track;

[0026] The column is installed on the base part, and the rotating shaft is installed on the column.

[0027] Optionally, the rotating shaft is included in the side hinge, and two side hinges are respectively adapted to the left swing frame and the right swing frame.

[0028] Optionally, a diagonal brace is installed on the column, and the diagonal brace is arranged on the high side of the column installation position.

[0029] Optionally, the base is a rectangular frame, and at least longitudinal beams are provided on the rectangular frame;

[0030] The longitudinal beam is a beam along the roadway track.

[0031] Optionally, the drive assembly is a triangular mechanism or a linkage mechanism;

[0032] If it is a triangular mechanism, a power machine is respectively equipped for the left swing frame and the right swing frame;

[0033] If it is a linkage mechanism, the left swing frame and the right swing frame share a power machine.

[0034] Optionally, the power machine of the triangular mechanism is a hydraulic cylinder, the hydraulic cylinder is arranged on one side of the triangular mechanism, its push rod is hinged to the left swing frame or the right swing frame, and the left swing frame or the right swing frame forms one side;

[0035] The linkage mechanism includes:

[0036] The middle crank arm, which is installed on the base through the middle base shaft and has an articulated point at each end;

[0037] The left crank arm, which is installed on the base through the left base shaft and is located on the left side of the middle crank arm;

[0038] The second connecting rod, with its two ends respectively articulated to one end of the left crank arm and one end of the middle crank arm;

[0039] The first connecting rod, with its two ends respectively articulated to the other end of the left crank arm and the left swing frame;

[0040] The right crank arm, which is installed on the base through the right base shaft and is located on the right side of the middle crank arm;

[0041] The fourth connecting rod, with its two ends respectively articulated to one end of the right crank arm and the other end of the middle crank arm;

[0042] The third connecting rod, with its two ends respectively articulated to the other end of the right crank arm and the right swing frame;

[0043] Correspondingly, the power machine output drives any one of the middle crank arm, the right crank arm or the left crank arm.

[0044] Optionally, the lengths of the first connecting rod and the third connecting rod are different, and the lengths of the second connecting rod and the fourth connecting rod are different;

[0045] The total stroke of the left swing frame and the right swing frame is the same.

[0046] In an embodiment of the present invention, there is also provided a sports car protection device equipped with the aforementioned snap-on split-type car stop railing.

[0047] In an embodiment of the present invention, there is only one locking moving member of the locking hook assembly, that is, the locking plate. The movement made by the locking plate is a rotation around the pin shaft, which belongs to a lower pair. The action links are few, and the movement form is simple, so the probability of failure is greatly reduced. At the same time, the locking plate is specifically configured to be divided into a first part located on the hook seat side and a second part located on the hook head side with the opened hole as the boundary. Overall, it is equivalent to a lever. And the first part shields part of the hook groove in the initial state. When the first part is directly acted on by the locked member, the locking plate rotates, causing the second part to gradually shield part of the hook groove, thereby reversely restricting the locked member. Obviously, the action of the locking plate meets the requirement that the greater the pulling force of the locked part, the tighter the locking, and has good locking reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a front view structural schematic diagram of the snap-on split-type car stop railing in a blocking state in an embodiment.

[0049] Figure 2 Corresponding to Figure 1 The top view structural schematic diagram (the foundation is omitted).

[0050] Figure 3 Corresponding to Figure 1 The right-side structural schematic diagram.

[0051] Figure 4 It is a top view structural schematic diagram of the locking hook assembly in an embodiment.

[0052] Figure 5 Corresponding to Figure 4 The front view structural schematic diagram (partially sectioned).

[0053] In the figure: 1. Foundation, 2. Anchor bolt, 3. Driving assembly, 4. Left rotating shaft, 5. Roadway track, 6. Left protective pipe, 7. Left rope, 8. U-bolt, 9. Lock hook assembly, 10. Right protective pipe, 11. Reinforcing rod, 12. Right rotating shaft, 13. Right rope, 14. Right column, 15. Base, 16. Limit stop, 17. Hinge shaft, 18. Left turning arm, 19. First connecting rod, 20. Left column, 21. Hinge shaft, 22. Left connecting seat, 23. Left base shaft, 24. Fixed plate, 25. Hinge shaft, 26. Hinge shaft, 27. Fourth connecting rod, 28. Hinge shaft, 29. Hydraulic cylinder, 30. Right connecting seat, 31. Hinge shaft, 32. Third connecting rod, 33. Right base shaft, 34. Hinge shaft, 35. Right turning arm, 36. Middle base shaft, 37. Hinge shaft, 38. Middle turning arm, 39. Second connecting rod, 40. Diagonal brace, 41. Right swing frame, 42. Pin shaft, 43. Hook body, 44. Lock plate, 45. Tension spring, 46. Assembly hole. Detailed implementation mode

[0054] As Figure 1 shown, the roadway track 5 in the figure generally consists of two track assemblies, and each track assembly is formed by sequentially connecting several track components. The track components generally need to be fixed by track bolts. The integrity requirement of the track is very high, and rail breakage or grooving on the track components is not allowed.

[0055] Generally, the direction in which the two track assemblies face each other is called inwards, and the opposite is outwards. And according to the conventional understanding, the direction along the roadway track 5 is the front-back direction, and the lateral direction corresponding to the front-back direction is the left-right direction.

[0056] Since the buckle split-type car stop is generally applied in an inclined roadway, taking the reference of the base roadway bottom surface as a reference system, for example, the left swing frame and the right swing frame 41 are substantially perpendicular to the roadway ground.

[0057] However, in some embodiments, the left swing frame and the right swing frame 41 can maintain a set angle with the roadway ground. Generally, taking the perpendicular to the roadway ground as a reference, the angle is the skew angle relative to this reference, and the skew angle is generally not more than 15 degrees.

[0058] From Figure 1As can be seen from the structure shown, for the buckle-opening type car stop, for example, the left column 20 for installing the left swing frame and the right column 14 for installing the right swing frame 41, the distance therebetween should be sufficient for the mine car to pass through. The width of the mine car is usually greater than the width between the track assemblies, or the gauge. For the left swing frame and the right swing frame 41, when the mine car is running normally, the two swing frames should not obstruct the normal running of the mine car. At this time, the two swing frames need to be disengaged and swung to the outside of the running path of the mine car. If a runaway accident occurs, the two swing frames need to be swung above the roadway track 5, and the two swing frames need to be connected to play a blocking role. This requires that the hook assembly for connecting the two swing frames is reliably connected. As an extension, it is required that the hook assembly operates smoothly, otherwise the reliability of the connection cannot be guaranteed. This is the technical requirement for the hook assembly.

[0059] Next, according to the technical requirements for the hook assembly in the foregoing content, a specific description of the buckle-opening type car stop will be given. It should be noted that in the embodiments of the present invention, the buckle-opening type car stop is described by way of example. Simple substitution of the technical means adopted should fall within the protection scope of the present invention. At the same time, for the term names adopted, unless otherwise specified, they do not constitute a limitation on its structure.

[0060] For the car stop, it necessarily includes a frame body. The frame body is the installation base for other car stop functional components. The frame body is generally fixedly installed on the ground or side wall of the roadway, usually installed on the ground.

[0061] To ensure the reliability of installation, usually a cement-based foundation 1 needs to be formed on the ground by pouring. In some embodiments, part of the structure of the frame body can be poured into the foundation 1, but this structure is not conducive to the maintenance of the equipment. Therefore, in Figure 1 and 3 In the structure shown, the frame body is installed through anchor bolts 2, and the anchor bolts 2 are embedded in the foundation 1.

[0062] In some embodiments, to ensure the position accuracy of the anchor bolts 2, the anchor bolts 2 can be pre-installed on, for example, an anchor plate. The distribution of the anchor bolts 2 is restricted by the bolt holes pre-opened on the anchor plate, and thus has relatively high position accuracy.

[0063] In addition, the presence of the anchor plate can also improve the reliability of the fixation of the anchor bolts 2 to the foundation 1.

[0064] In some embodiments, the anchor plate can also be configured as a frame structure, with bolt holes pre-opened on some beams of the frame, or the anchor bolts 2 are directly welded to the frame structure.

[0065] It can be understood that the frame must include a part located outside the roadway track 5, otherwise the installation structure of the car stop will affect the passage of the mine car. In particular, it should be noted that in the embodiment of the present invention, the car stop has a rotational degree of freedom based on rotation. After rotating above the roadway track 5 and the two car stops are connected to each other, it is in the blocking state, that is, the mating state mentioned below. When it rotates outside the roadway track 5 and completely avoids the passage path of the mine car, it is in the open state, that is, the opposite open state mentioned below.

[0066] The rotation depends on the left swing frame and the right swing frame 41 should have a rotational degree of freedom. Based on the foregoing description, the rotation axes adapted for the left swing frame and the right swing frame 41 can be perpendicular to the roadway ground or form a relatively small angle, and this angle is usually not greater than 15 degrees. Here, taking perpendicular to the roadway ground as an example. When the left swing frame and the right swing frame 41 rotate to the blocking position, that is, in the foregoing blocking state, the two swing frames present a state as shown in Figure 1 That is, perpendicular to the roadway track 5.

[0067] The adapted rotation axes, that is, Figure 1 The left rotation axis 4 and the right rotation axis 12 shown in, the two rotation axes are perpendicular to the roadway track 5 in Figure 1 It can also have a certain slope.

[0068] As can be seen from the figure, the left rotation axis 4 is located on the left side of the left track assembly, and the right rotation axis 12 is located on the right side of the right track assembly, that is, it needs to avoid the normal operation path of the mine car.

[0069] For the movement of the left swing frame and the right swing frame 41, it belongs to the most common rotation in the mechanical field, and rotation is one of the most easily obtained movement forms in the mechanical field, and its implementation method is relatively simple. In the embodiment of the present invention, the drive mechanism for driving the left swing frame and the right swing frame 41 to move is called the drive assembly to drive the two swing frames to mate or open.

[0070] Compared with the prior art, the focus of the present invention is the improvement of the lock hook assembly 9 to ensure reliable locking and smooth operation of the lock hook assembly.

[0071] Specifically, regarding the lock hook assembly 9, it is installed on the left swing frame or the right swing frame 41, that is, one of the two swing frames, and then the other swing frame is locked. It should be noted that, for example, after the mine car impacts the car stop and the car stop falls off the frame, generally the foregoing rotation axis is damaged, and the steel wire ropes connected to the two swing frames play a pulling role. The steel wire ropes are connected to the energy absorber to gradually consume energy and gradually reduce the kinetic energy of, for example, the mine car.

[0072] The kinetic energy of the mine car is relatively large when it initially contacts the car arrester, which requires the car arrester to remain intact. If the connection between the two swing frames is disconnected, the mine car will continue to move downward and lose its function of preventing runaway.

[0073] In view of this, specifically, in Figure 4 In the structure shown, the locking hook assembly 9 includes a hook body 43 having a hook head and a hook seat. In the figure, the part with the assembly hole 46 is the hook seat of the hook body 9, and the part that loops back to the left to define the hook groove is the functional part of the hook body. The end of this part is the hook head. Generally, the hook head has a relatively smooth contour and generally has a guiding surface, which has the function of facilitating the introduction of the hook functional target part.

[0074] Figure 4 In, the right guard tube 10 is the object hooked by the hook body 43. In the figure, the direction perpendicular to the paper surface is generally the direction to determine the hook side, which is generally referred to as the left and right sides of the hook body 43. In Figure 4 and Figure 5 In the structure shown, there are two locking plates 44. The locking plates 44 are rotatably installed on the middle side of the hook body 43 through a pin shaft 42. The locking plates 44 have the freedom of rotation, and the initial position of the locking plates 44 can be defined by the structure. In Figure 1 In the structure shown, the position of the locking plate 44 is determined by a tension spring 45.

[0075] The tension spring 45 is fully called a tensile spring. In its fully retracted state, it does not have an axial compression amount, and thus the initial rotation angle position of the locking plate 44 can be determined.

[0076] In addition, in order to ensure the relative stability of the initial position of the locking plate 44, the tension spring 45 should have a certain pre-tension. A stop pin can be set on the hook body to block the locking plate 44 from further rotating counterclockwise under the pulling force of the tension spring 45 in Figure 4 so that the locking plate 44 can have a pulling force and can maintain a relatively stable initial state.

[0077] Furthermore, in Figure 4 In the structure shown, the locked component is the right guard tube 10 shown in the figure. Correspondingly, the locking hook assembly 9 is installed on the left swing frame. The right guard tube 10 constitutes the locking object of the locking hook assembly 9 and is called the locked component.

[0078] The locked component can be the independently provided right guard tube 10 as shown in Figure 4 or a locked component included in the locking hook assembly 9, such as a hanging ring welded on the right swing frame 41 that can be hooked by the lock body 43.

[0079] When the locked component is introduced into the hook groove of the hook body 43, the acting force of the locked component on the hook body 43 is offset to the side of the hook seat where the pin shaft is set. In other words, when the locked component intervenes into the groove, it will press on Figure 4 the right side of the pin shaft 42 in

[0080] Accordingly, the lock plate 44 is divided into a first part located on the hook seat side and a second part located on the hook head side with the opened hole as the boundary, and as a whole forms a lever with the pin shaft 42 as the fixed hinge support. Thus, as shown in Figure 4 , when the first part receives a downward pressure, the lock plate 44 rotates clockwise. At this time, the tension spring 45 provides a counter torque, the first part moves away from the groove, and the second part approaches the groove, so as to achieve locking.

[0081] Specifically, the first part shields part of the hook groove in the initial state. When it is pressed, it will be driven away, so that the locked component is finally supported on the hook body 43, and the lock plate 44 stops rotating. During this process, as described above, the second part will gradually shield part of the structure of the groove during the clockwise rotation, and rely on the contour to block the locked component. As shown in Figure 4 , the direction of the right protection tube 10 in the figure is shielded. The greater the pulling force of the hook body 43, the stronger the reverse stop effect of the second part.

[0082] It can be understood that the second part must be able to avoid the locked component in position in the initial state, and then be able to reversely restrain the locked component when the locked component reaches the bottom of the hook groove. Based on this principle, those skilled in the art can set the general structure of the lock plate 44 without creative labor. In particular, the two swing frames are mainly locked by the hook body 43, and the lock plate 44 only plays an auxiliary role to prevent the locked state from being disengaged during the blocking process, and the strength requirement for it is not high.

[0083] Figure 5 In the structure shown in

[0084] , there are two lock plates 44, and one is provided on each side of the hook body 43 corresponding to the two lock plates 44, which can make the locking force more balanced.

[0085] Since after the component to be locked intervenes in the hook groove, the force pressing the lock plate 44 can keep the lock plate in a relatively stable state. In other words, as long as the initial state of the lock plate 44 can be maintained, therefore, in some embodiments, the rotating pair provided by the pin shaft 42 can adopt a damping pair. In other words, a certain force is required to rotate the lock plate 44, and this force can maintain the state of the lock plate 44 without external force.

[0086] In other embodiments, a shear pin can be used to lock the initial state of the lock plate 44, for example. Obviously, the shearing force of the shear pin does not need to be too large, after all, it is only to maintain the initial state of the lock plate 44.

[0087] Obviously, items with certain binding force such as cotton thread can also be used to tie the second part, and the provided position maintaining force is not large either.

[0088] Regarding the lock plate 44, as Figure 4 shown, in the figure, the lock plate 44 is a curved plate with a curved groove, and the groove opening has a guiding arc to facilitate the introduction of the right guard tube 10, for example.

[0089] Correspondingly, in the initial state, the groove opening of the lock plate 44 and the groove opening of the hook body 43 jointly guide the component to be locked.

[0090] To ensure the reliability of the locking, as Figure 1 shown, in the figure, there are two lock hook assemblies 9, but it is not limited to two. When necessary, there can be more, but generally it cannot exceed four, and two are appropriate.

[0091] When there are multiple lock hook assemblies 9, the multiple lock hook assemblies 9 are distributed in the height direction of the car blocking rail.

[0092] In Figure 1 the structure shown, the left guard tube 6 and the right guard tube 10 are used to pass the steel wire rope, such as Figure 1 the left rope 7 and the right rope 13 shown in the figure. In this way, in Figure 4 the structure shown, when the lock hook hooks the right guard tube 10, it will necessarily also hook the right rope 13. The purpose of such a setting is that although the strength of the guard tube itself is very high, for example, it is prone to breakage, while the steel wire rope has a certain toughness and is not easy to break. Taking this as an example, even if the guard tube is not used, the steel wire rope attached to be hooked by the hook body 43 should be included.

[0093] It should be known that in the field of car blocking rails, the steel wire rope must be connected to an energy absorber, and relevant descriptions have also been made in the previous text.

[0094] Relatively speaking, the pipe body is easier to set. If the guard tube is not used but a rod is used, the steel wire rope needs to be parallel to the rod, which will inevitably increase the volume of the hook body 43.

[0095] In Figure 1In the structure shown, the pipe body is a U-shaped pipe. The plane determined by the axis of the U-shaped pipe is parallel to the blocking plane determined by the left swing frame or the right swing frame 41, and the connecting arc pipe of the U-shaped pipe for connecting two straight pipe parts is locked by the hook assembly 9.

[0096] In Figures 1 - 3 In the structure shown, the frame body includes:

[0097] A base 15, which is installed on the lower side of the roadway track 5 and has a base part located on the outer sides of the left and right sides of the roadway track 9. For the installation method of the base 15, refer to the description of the frame body part in the foregoing content.

[0098] A column is installed on the base. Correspondingly, the rotating shaft is installed on the column.

[0099] In a preferred embodiment, the rotating shaft is included in the side hinge, and each of the left swing frame and the right swing frame 41 is equipped with two side hinges. Specifically, it can be seen in Figure 3 the structure shown. A common side hinge is a hinge, and its connection strength is relatively low and it is easy to fall off when receiving an impact, which meets the requirements for using the car blocking fence.

[0100] The swing frame on the car blocking fence cannot be reused after being impacted. However, components such as the column and the base 15 can still be reused. Therefore, after the impact causes the swing frame to break away from the column, the damage to the column should be relatively small. For this reason, a diagonal brace 40 is installed on the column. The diagonal brace 40 is arranged on the high side of the column installation position. It should be noted that for the sports car protection device, it is generally installed on the inclined roadway. Here, the high place is the relatively high position of the installation position of the sports car protection device in the inclined roadway.

[0101] From Figure 2 it can be seen that the base 15 is a rectangular frame. The rectangular frame is at least provided with longitudinal beams, so as to have a reliable structure. At the same time, in some embodiments, cross beams can also be configured for it.

[0102] Correspondingly, the longitudinal beam is a beam along the roadway track 5.

[0103] Regarding the drive assembly, since the buckle split-type car blocking fence is already relatively mature, the mechanism for realizing the split is also relatively mature. Especially in the cross field, the split door controlled by the mechanism has long been a common form in the mechanical field.

[0104] In the embodiment of the present invention, two drive assemblies are preferably used. One is a triangular mechanism, and the other is a link mechanism. Among them, the triangular mechanism is essentially a variant of the link mechanism and is essentially also a link mechanism.

[0105] Furthermore, if it is a triangular mechanism, a power machine is equipped for each of the left swing frame and the right swing frame.

[0106] If it is a linkage mechanism, the left swing frame and the right swing frame share a single power machine.

[0107] In some embodiments, the power machine of the triangular mechanism is a hydraulic cylinder, which is arranged on one side of the triangular mechanism, and its push rod is hinged to the left swing frame or the right swing frame 41, and the left swing frame or the right swing frame 41 forms one side. The triangular mechanism is a common mechanism in the mechanical field and will not be elaborated here.

[0108] In some embodiments, refer to the attached drawings of the specification Figure 2 , the linkage mechanism includes:

[0109] The middle crank arm 38 is installed on the base 15 through the middle base shaft 36, and there is a hinge point at each end of the middle crank arm 38.

[0110] The left crank arm 18 is installed on the base 15 through the left base shaft 23 and is located on the left side of the middle crank arm 38.

[0111] The second connecting rod 39 is hinged to one end of the left crank arm 18 and one end of the middle crank arm 38 respectively at both ends.

[0112] The first connecting rod 19 is hinged to the other end of the left crank arm 18 and the left swing frame respectively at both ends.

[0113] The right crank arm 35 is installed on the base 15 through the right base shaft 33 and is located on the right side of the middle crank arm 38.

[0114] The fourth connecting rod 27 is hinged to one end of the right crank arm 35 and the other end of the middle crank arm 38 respectively at both ends.

[0115] The third connecting rod 32 is hinged to the other end of the right crank arm 35 and the right swing frame 41 respectively at both ends.

[0116] Correspondingly, the power machine output drives any one of the middle crank arm 35, the right crank arm 35 or the left crank arm 18.

[0117] In some embodiments, for the convenience of unlocking, the lengths of the first connecting rod 19 and the third connecting rod 32 are different, and the lengths of the second connecting rod 39 and the fourth connecting rod 28 are different; the total strokes of the left swing frame and the right swing frame 41 are the same. According to this structure, the rotation forms of the two swing frames are different, and the speeds are different in the same stage, which is beneficial to unlocking.

Claims

1. A buckle-opening type vehicle barrier, characterized in that, include: A frame body, used for installing the said buckle split-type car barrier in the lane, and the frame body is provided with a rotating shaft on both sides corresponding to the lane track; The left swing frame is mounted on the frame body through a rotating shaft located on the left side of the laneway track; The right swing frame is installed on the frame body through a rotating shaft located on the right side of the laneway track, and forms a split-type vehicle blocking grid frame with the left swing frame; A drive assembly is used to drive the left swing frame and the right swing frame to swing to the blocking position or swing out to the outside of the laneway track; The lock hook assembly is installed on the left swing frame or the right swing frame, and is used to connect the two swing frames when the left and right swing frames swing to the blocking position; the lock hook assembly includes a hook body having a hook head and a hook seat, and a lock plate rotatably installed on the side of the middle part of the hook body through a pin shaft; Wherein, when the locked member included in the lock hook assembly or independently arranged is introduced into the hook groove of the hook body, the force of the locked member acting on the hook body is biased to the side of the hook seat where the pin shaft is arranged; accordingly, the lock plate is divided into a first part located on the hook seat side and a second part located on the hook head side by the pin hole, the first part shields part of the hook groove in the initial state and is directly acted upon by the locked member, and the second part avoids the locked member in the initial state and reversely constrains the locked member when the locked member reaches the bottom of the hook groove; Each lock hook assembly is equipped with a pair of lock plates, and the two lock plates are respectively provided on both sides of the hook body; The locking plate is a curved plate with a curved groove, and the groove has a lead-in arc; In the initial state, the notch of the lock plate and the notch of the hook body jointly guide the locked component; The driving assembly is a triangle mechanism or a connecting rod mechanism; If it is a triangular mechanism, the left swing frame and the right swing frame are each equipped with a power machine; If it is a connecting rod mechanism, the left swing frame and the right swing frame share a power machine; The power machine of the triangular mechanism is a hydraulic cylinder, which is arranged on one side of the triangular mechanism, and its push rod is hinged on the left swing frame or the right swing frame, and the left swing frame or the right swing frame constitutes one side; The connecting rod mechanism comprises: A middle turning arm, which is mounted on the base through a middle base shaft and has a hinge point at each end; A left turning arm, which is mounted on the base through a left base shaft and is located on the left side of the middle turning arm; The second connecting rod has two ends hinged to one end of the left turning arm and one end of the middle turning arm respectively; The first connecting rod has two ends hinged to the other end of the left turning arm and the left swing frame respectively; A right turning arm, which is mounted on the base through a right base shaft and is located on the right side of the middle turning arm; The fourth connecting rod has two ends hinged to one end of the right turning arm and the other end of the middle turning arm respectively; The third connecting rod has two ends hinged to the other end of the right crank arm and the right swing frame respectively; Accordingly, the power machine output drives any one of the middle crank arm, the right crank arm or the left crank arm.

2. The buckle-opening type vehicle barrier according to claim 1, characterized in that, The lock hook assembly is equipped with a tension spring, one end of which is connected to the first part, and the other end is installed on the hook head side of the hook body where the pin is set to provide counter torque; Correspondingly, the moment generated by the locked component acting on the locking plate is a positive moment.

3. The buckle-opening type vehicle barrier according to claim 1, characterized in that, There are at least two lock hook assemblies, which are distributed in the height direction of the barrier.

4. The buckle-opening type vehicle barrier according to claim 1, characterized in that, The locked part of the locked component is passed through by the steel wire rope; Among them, the wire rope is used to connect the energy absorber.

5. The buckle-opening type vehicle barrier according to claim 4, characterized in that, The locked component is a tube body, and the steel wire rope passes through the tube body.

6. The buckle-opening type vehicle barrier according to claim 5, characterized in that, The pipe body is a U-shaped pipe. The plane determined by the axis of the U-shaped pipe is parallel to the blocking plane determined by the left swing frame or the right swing frame, and the connecting arc pipe of the U-shaped pipe for connecting the two straight pipe parts is locked by the locking hook assembly.

7. The buckle-opening type vehicle barrier according to claim 1, characterized in that, The frame body includes: A base installed on the lower side of the roadway track and having base parts located on the outer sides of the left and right sides of the roadway track; A column installed on the base part, and the rotating shaft is installed on the column.

8. The buckle-opening type vehicle stop according to claim 7, characterized in that, The rotating shaft is included in the side hinge, and each of the left swing frame and the right swing frame is equipped with two side hinges.

9. The buckle-opening type vehicle stop according to claim 7, characterized in that, A diagonal brace is installed for the column, and the diagonal brace is arranged on the high side of the column installation position.

10. The buckle-opening type vehicle stop according to claim 7, characterized in that, The base is a rectangular frame, and the rectangular frame is at least provided with longitudinal beams; The longitudinal beam is a beam along the roadway track.

11. The buckle-opening type vehicle stop according to claim 1, characterized in that, The lengths of the first connecting rod and the third connecting rod are different, and the lengths of the second connecting rod and the fourth connecting rod are different; The total stroke of the left swing frame and the right swing frame is the same.

12. A sports car protection device equipped with the buckle-opening type vehicle stop according to any one of claims 1 to 11.

Images