CN108203945B - Tunnel entrance guard device - Google Patents
Tunnel entrance guard device Download PDFInfo
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- CN108203945B CN108203945B CN201810016900.3A CN201810016900A CN108203945B CN 108203945 B CN108203945 B CN 108203945B CN 201810016900 A CN201810016900 A CN 201810016900A CN 108203945 B CN108203945 B CN 108203945B
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- supporting seat
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- 230000004888 barrier function Effects 0.000 claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 125000003003 spiro group Chemical group 0.000 claims 3
- 230000005484 gravity Effects 0.000 abstract description 7
- 238000004904 shortening Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/048—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage with obstructing members moving in a translatory motion, e.g. vertical lift barriers, sliding gates
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides a tunnel entrance guard device, and belongs to the technical field of tunnel safety. The tunnel entrance guard device comprises a supporting seat, a blocking device and a propping piece. The arresting device includes an arresting member and a drive mechanism. The barrier comprises a fixed body and a movable body, the fixed body is rotatably connected with the supporting seat, and the movable body can move relative to the fixed body so as to extend or shorten the barrier. The driving mechanism is used for driving the movable body to move relative to the fixed body. The supporting seat is fixed on the supporting seat, and when the movable body moves relative to the fixed body and the stopping piece is shortened, the movable body can be contacted with the supporting seat so as to push the fixed body to rotate upwards relative to the supporting seat. When the access control device is opened, the gravity center of the blocking device moves backwards, so that the blocking device is ensured to have enough length in the blocking position, and the driving force required by the blocking device to rotate upwards is reduced.
Description
Technical Field
The invention relates to the technical field of tunnel safety, in particular to a tunnel entrance guard device.
Background
In the tunnel construction process, tunnel entrance guard devices are often arranged at the entrances and exits of the tunnels to prevent vehicles from entering the tunnels. The existing tunnel entrance guard device generally comprises a supporting seat, an obstruction device and a motor, wherein the obstruction device is rotatably connected with the supporting seat, and the motor is used for driving the obstruction device to rotate. The length of the blocking device in the existing entrance guard device cannot be too long, and the motor cannot be driven to rotate if the length is too long. Because the width of tunnel is great, consequently, can generally set up two entrance guard's devices at the tunnel portal.
Disclosure of Invention
The invention aims to provide a tunnel entrance guard device to solve the problem that the length of the entrance guard device cannot be too long.
The invention is realized by the following steps:
in view of the first object, the present invention provides a tunnel entrance guard device, including:
a supporting seat;
the stopping device comprises a stopping piece and a driving mechanism, the stopping piece comprises a fixed body and a movable body, the fixed body is rotatably connected with the supporting seat, the movable body can move relative to the fixed body so as to extend or shorten the stopping piece, and the driving mechanism is used for driving the movable body to move relative to the fixed body;
the supporting seat is fixed on the fixed body, and the movable body can contact with the supporting seat when moving relative to the fixed body and shortening the stopping piece so as to push the fixed body to rotate upwards relative to the supporting seat.
Further, the driving mechanism comprises a telescopic body and a driving device;
the telescopic body is positioned at the lower side of the barrier and connected with the barrier;
the driving device is used for driving the telescopic body to extend or shorten, the barrier member extends when the telescopic body extends, and the barrier member shortens when the telescopic body shortens.
Furthermore, the telescopic body comprises a plurality of telescopic units arranged side by side, each telescopic unit comprises a first connecting piece and a second connecting piece, the first connecting pieces are hinged with the second connecting pieces, and the first connecting pieces and the second connecting pieces are arranged in a crossed mode;
two adjacent telescopic units are a first telescopic unit and a second telescopic unit, one end of a first connecting piece of the first telescopic unit is hinged with one end of a second connecting piece of the second telescopic unit, and one end of a second connecting piece of the first telescopic unit is hinged with one end of a first connecting piece of the second telescopic unit.
Furthermore, the telescopic unit positioned at one end of the telescopic body in the telescopic direction is a third telescopic unit;
the driving device comprises a driving motor, a screw rod, a first nut and a second nut;
the screw rod is rotationally connected with the fixed body, and the driving motor is used for driving the screw rod to rotate;
the lead screw comprises a left-handed thread section and a right-handed thread section, a first nut is in threaded connection with the left-handed thread section, a second nut is in threaded connection with the right-handed thread section, the free end of a first connecting piece of the third telescopic unit is hinged to the first nut, and the free end of a second connecting piece of the third telescopic unit is in threaded connection with the second nut.
Furthermore, the telescopic unit positioned at the other end of the telescopic body in the telescopic direction is a fourth telescopic unit;
the free end of the first connecting piece of the fourth telescopic unit is connected with the movable body;
and the free end of the second connecting piece of the fourth telescopic unit is provided with a roller which is used for contacting with the ground.
Furthermore, a through hole is arranged on the fixing body;
the movable body is arranged in the through hole in a penetrating way, and the track line of the movable body moving along the through hole deviates from the axis of the fixed body rotating relative to the supporting seat.
Furthermore, the abutting piece is provided with a contact surface, and the distance from the contact surface to the axis of the fixed body rotating relative to the supporting seat is gradually increased in the upward rotating direction of the fixed body relative to the supporting seat;
the movable body is provided with a first end, the first end penetrates through the through hole, and when the stopping piece is shortened, the first end can penetrate out of the through hole to be contacted with the contact surface so as to push the fixed body to rotate upwards relative to the supporting seat.
Further, the contact surface is a circular arc surface.
Furthermore, the abutting piece is a gear, the gear is fixed on the supporting seat, and the axis of the gear is superposed with the axis of the fixed body rotating relative to the supporting seat;
the movable body is provided with a tooth-shaped part, and when the barrier piece is shortened, the tooth-shaped part can be meshed with the gear to push the fixed body to rotate upwards relative to the supporting seat.
Further, the fixing body comprises a rod portion and a supporting portion, the through hole is formed in the rod portion, the through hole penetrates through two ends of the rod portion in the length direction, one end of the supporting portion is connected with the rod portion, the supporting portion is perpendicular to the rod portion, and the supporting portion is connected with the supporting seat in a rotating mode.
The invention has the beneficial effects that:
the invention provides a tunnel entrance guard device, wherein a barrier is rotatably connected with a supporting seat, the barrier is of a telescopic structure, and a driving mechanism can drive a movable body to move relative to a fixed body, so that the barrier is extended or shortened. When it is desired to lift the barrier upwardly, the drive mechanism may be actuated to shorten the barrier, thereby moving the center of gravity of the barrier device closer to the axis of rotation of the barrier. When the movable body moves relative to the fixed body and contacts with the abutting piece, the blocking piece is continuously shortened, the blocking piece is pushed to rotate upwards relative to the supporting seat, and therefore the blocking piece is lifted upwards. When the access control device is opened, the gravity center of the blocking device moves backwards, so that the blocking device is ensured to have enough length in the blocking position, and the driving force required by the blocking device to rotate upwards is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a tunnel entrance guard device according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of the arresting device shown in FIG. 1;
FIG. 3 is a schematic structural view of the blocking fixture shown in FIG. 2;
fig. 4 is a schematic structural diagram of a tunnel entrance guard device according to embodiment 2 of the present invention.
Icon: 100-tunnel entrance guard device; 10-a support seat; 20-a stopping device; 21-a barrier; 211-immobilizer; 2111-a stem portion; 2112-a support portion; 2113-through hole; 2114-perforating holes; 212-a movable body; 2121-first end; 2122-a second end; 2123-tooth-shaped part; 22-a drive mechanism; 221-a telescopic body; 2211-telescoping unit; 2212-a first connector; 2213-second connector; 2214-rollers; 222-a drive device; 2221-drive motor; 2222-lead screw; 2223-first nut; 2224-second nut; 23-an intermediate piece; 30-an abutment; 31-a contact surface; 40-gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1, the present embodiment provides a tunnel barrier 100, which includes a support base 10, a barrier 20 and an abutting member 30, wherein the barrier 20 includes a barrier 21 and a driving mechanism 22.
Wherein, the supporting seat 10 is a cuboid structure, which plays a role of supporting each component.
As shown in fig. 2, the barrier 21 includes a fixed body 211 and a movable body 212, the movable body 212 is movably connected to the fixed body 211, and the movable body 212 can move axially relative to the fixed body 211 to lengthen or shorten the barrier 21.
As shown in fig. 3, the fixing body 211 includes a rod portion 2111 and a support portion 2112, one end of the support portion 2112 is connected and fixed to the rod portion 2111, and the support portion 2112 is perpendicular to the rod portion 2111. Wherein, the rod portion 2111 is provided with a through hole 2113 and a through hole 2114. The through hole 2113 extends in the longitudinal direction of the stem portion 2111, and the through hole 2113 penetrates both ends of the stem portion 2111 in the longitudinal direction. The through-holes 2114 are perpendicular to the through-holes 2113. The through holes 2114 and the through holes 2113 are independent from each other, and the hole walls of the through holes and the through holes are not intersected.
As shown in fig. 2, the movable body 212 is a circular rod, and the diameter of the movable body 212 matches the aperture of the through hole 2113. The movable body 212 has a first end 2121 and a second end 2122 at opposite ends in the longitudinal direction, the first end 2121 is inserted into the through hole 2113, and the second end 2122 is located outside the through hole 2113. When the movable body 212 moves axially relative to the stationary body 211 and shortens the stopper 21, the first end 2121 of the movable body 212 may pass through the through hole 2113.
The driving mechanism 22 includes an extensible body 221 and a driving device 222, and the driving device 222 is used for driving the extensible body 221 to extend and retract.
The telescopic body 221 includes a plurality of telescopic units 2211 arranged side by side, the telescopic units 2211 include a first connecting piece 2212 and a second connecting piece 2213, the first connecting piece 2212 and the second connecting piece 2213 are rod pieces, the first connecting piece 2212 is hinged to the second connecting piece 2213, and the first connecting piece 2212 and the second connecting piece 2213 are arranged in a crossing manner. For convenience of description, any two adjacent telescopic units 2211 in the telescopic body 221 are defined as a first telescopic unit 2211 and a second telescopic unit 2211, one end of the first connecting piece 2212 of the first telescopic unit 2211 is hinged to one end of the second connecting piece 2213 of the second telescopic unit 2211, and one end of the second connecting piece 2213 of the first telescopic unit 2211 is hinged to one end of the first connecting piece 2212 of the second telescopic unit 2211.
The driving device 222 includes a driving motor 2221, a lead screw 2222, a first nut 2223, and a second nut 2224. The screw 2222 is inserted into the insertion hole 2114 of the fixing body 211, and the screw 2222 can rotate around its axis relative to the fixing body 211. The driving motor 2221 is fixed to the rod portion 2111 of the fixing body 211, and an output shaft of the driving motor 2221 is connected to the lead screw 2222. The lead screw 2222 includes a left-hand thread section and a right-hand thread section, the left-hand thread section is provided with a left-hand thread, and the right-hand thread section is provided with a right-hand thread. First nut 2223 is threaded onto the left-hand threaded section and the right-hand nut is threaded onto the right-hand threaded section.
For convenience of description, the telescopic units 2211 at both ends of the telescopic body 221 in the telescopic direction are defined as a third telescopic unit 2211 and a fourth telescopic unit 2211. The telescopic body 221 is located at a lower side of the dam 21. The free end of the first connector 2212 of the third telescopic unit 2211 is hinged to the first nut 2223, and the free end of the second connector 2213 of the third telescopic unit 2211 is hinged to the second nut 2224. The free end of the first link 2212 of the fourth telescopic unit 2211 is connected to the movable body 212 via the intermediate member 23. The intermediate member 23 is a rod member, the intermediate member 23 is screwed to the second end 2122 of the movable body 212, and the intermediate member 23 is hinged to the free end of the first connecting member 2212. The free end of the second connector 2213 of the fourth telescopic unit 2211 is provided with a roller 2214 for contacting the ground, and the roller 2214 can rotate relative to the second connector 2213.
When the driving motor 2221 rotates forward, the first nut 2223 and the second nut 2224 approach each other, so that the first connecting member 2212 and the second connecting member 2213 in the telescopic unit 2211 rotate relatively, so that the telescopic body 221 extends, and the movable body 212 moves axially relative to the fixed body 211 to extend the blocking member 21; when the driving motor 2221 rotates reversely, the first nut 2223 and the second nut 2224 will move away from each other, so that the first connector 2212 and the second connector 2213 in the telescopic unit 2211 rotate relatively, so that the telescopic body 221 is shortened, and the movable body 212 will move axially relative to the fixed body 211, so that the blocking member 21 is shortened. The forward or reverse movement of the driving motor 2221 eventually achieves the extension and contraction of the dam 21.
As shown in fig. 1, the supporting portion 2112 of the fixing body 211 is rotatably connected to the supporting seat 10 through a rotating shaft, the fixing body 211 can rotate relative to the supporting seat 10 around the rotating shaft, and the supporting portion 2112 and the telescopic body 221 are respectively located at the upper and lower sides of the rod portion 2111. After the supporting portion 2112 is rotatably connected to the supporting seat 10, the trajectory of the movable body 212 moving along the through hole 2113 of the fixed body 211 deviates from the axis of the fixed body 211 rotating relative to the supporting seat 10, and the trajectory of the movable body 212 moving along the through hole 2113 is perpendicular to and out of plane with the axis of the fixed body 211 rotating relative to the supporting seat 10. When the fixing body 211 rotates relative to the support base 10, both the stopper 21 and the driving mechanism 22 will rotate relative to the support base 10.
The abutting member 30 is fixed to the support base 10. In this embodiment, the abutting member 30 is circular arc-shaped. The inner surface of the abutting member 30 is a contact surface 31, and the distance from the contact surface 31 to the axis of rotation of the fixing body 211 relative to the support seat 10 is gradually increased in the direction (counterclockwise direction) in which the fixing body 211 rotates upward relative to the support seat 10. The contact surface 31 may be a slanted plane or a circular arc surface. In this embodiment, the contact surface 31 is a circular arc surface. When the movable body 212 of the blocker 21 moves relative to the fixed body 211 and the first end 2121 of the movable body 212 passes through the through hole 2113, the first end 2121 of the movable body 212 finally contacts the contact surface 31. After the first end 2121 contacts the contact surface 31, the moving body 212 continuously moves relative to the fixed body 211 to apply a tangential force to the fixed body 211, so that the blocking member 21 and the driving mechanism 22 integrally rotate upward.
In actual use, the support base 10 is installed on the floor of the tunnel doorway, and the roller 2214 of the telescopic body 221 is placed on the floor when the blocking device 20 is in the closed state. When the arresting device 20 needs to be lifted upwards, the driving motor 2221 rotates reversely, the first nut 2223 and the second nut 2224 move away from each other, so that the first connecting piece 2212 and the second connecting piece 2213 in the telescopic unit 2211 rotate relatively, the telescopic body 221 is shortened, and the arresting member 21 is shortened accordingly. Thereby shifting the center of gravity of the barrier 21 and drive mechanism 22 as a whole toward an axis near which the barrier 21 rotates. When the first end 2121 of the movable body 212 contacts the contact surface 31 of the abutting member 30, the continued shortening of the blocking member 21 pushes the blocking member 21 to rotate upward relative to the support seat 10, so that the whole blocking device 20 is lifted upward. During the upward lifting process of the arresting device 20, the first end 2121 of the movable body 212 slides along the contact surface 31, and the arc-shaped contact surface 31 effectively reduces the friction force generated when the movable body 212 slides. When the arresting device 20 needs to be put down, the driving motor 2221 rotates in the forward direction, the first nut 2223 and the second nut 2224 approach each other, so that the first connecting piece 2212 and the second connecting piece 2213 in the telescopic unit 2211 rotate relatively, the telescopic body 221 extends, the arresting member 21 also extends along with the first connecting piece 2213, the whole arresting device 20 rotates downwards gradually under the action of gravity, the roller 2214 is in contact with the ground, the telescopic body 221 extends continuously, and finally the arresting device 20 is restored to the original shape. After the roller 2214 is placed on the ground, when the telescopic body 221 continues to extend, the roller 2214 will roll on the ground, and the roller 2214 can reduce the resistance of the ground to the extension process of the telescopic body 221. When the access control device is opened, the center of gravity of the arresting device 20 moves backward, which not only ensures that the arresting device 20 has a sufficient length in the arresting position, but also reduces the driving force required for the arresting device 20 to rotate upward. In addition, the retraction and rotation of the arresting apparatus 20 can be accomplished by one driving motor 2221.
In this embodiment, the driving mechanism 22 includes an expandable/contractible body 221 and a driving device 222, and the driving device 222 drives the expandable/contractible body 221 to expand and contract to achieve expansion and contraction of the barrier 21. The expansion/contraction body 221 is located below the stopper 21 and has a blocking function. In other embodiments, the driving mechanism 22 can be other structures, for example, the driving mechanism 22 is a motor, a gear and a rack, the motor is used for driving the gear to rotate, the rack is disposed on the movable body 212, the gear is engaged with the rack, and when the motor drives the gear to rotate, the movable body 212 will move relative to the fixed body 211.
In this embodiment, the telescopic body 221 is formed by a plurality of telescopic units 2211 having a cross structure, and after one telescopic unit 2211 is changed, all the telescopic units 2211 are changed accordingly, so that the telescopic speed of the telescopic body 221 is increased, the telescopic stroke of the telescopic body 221 is large, and the occupied space is small when the telescopic body 221 is shortened. In addition, during the shortening process of the telescopic body 221, the vertical height of the telescopic body 221 will be increased, so that the whole arresting device 20 will rotate a certain angle relative to the supporting seat 10, thereby providing an initial speed for the movable body 212 to collide with the abutting piece 30 to rotate the arresting device 20, and facilitating the lifting of the arresting device 20. In addition, when the arresting device 20 is lowered, the roller 2214 on the telescopic body 221 will contact with the ground with a certain speed, and the telescopic body 221 will receive a certain impact. The telescopic units 2211 in the telescopic body 221 are of a cross structure, so that the shock resistance is good, and the service life of the arresting device 20 is ensured.
In this embodiment, the screw 2222 in the driving device 222 adopts a bidirectional threaded structure, and when the driving motor 2221 drives the screw 2222 to rotate, the first nut 2223 and the second nut 2224 will move in opposite directions at the same time, so that the telescopic body 221 can efficiently complete the telescopic action.
Example 2
The present embodiment provides a tunnel barrier apparatus 100, which is different from the above-described embodiments in that the structure of the abutting piece 30 is different.
In this embodiment, the abutting member 30 is the gear 40, and the movable body 212 in the barrier 21 has a toothed portion 2123, i.e. the movable body 212 has a rack structure. The movable body 212 has a rectangular cross section, and the through hole 2113 in the stationary body 211 has a rectangular cross section, and the movable body 212 is disposed in the through hole 2113 in the stationary body 211 and can move along a fixed trajectory.
The gear 40 is fixed on the support base 10, the axis of the gear 40 coincides with the axis of the fixed body 211 rotating relative to the support base 10, and the toothed portion 2123 of the movable body 212 can mesh with the gear 40 during the shortening of the stopper 21. The dam 21 is retracted only before the gear 40 engages the toothed portion 2123, and the dam 21 is rotated upward and retracted after the gear 40 engages the toothed portion 2123.
In practical use, when the blocking device 20 needs to be lifted upwards, the driving motor 2221 rotates reversely, the first nut 2223 and the second nut 2224 move away from each other, so that the first connecting member 2212 and the second connecting member 2213 in the telescopic unit 2211 rotate relatively, the telescopic body 221 is shortened, and the blocking member 21 is shortened accordingly. Thereby shifting the center of gravity of the barrier 21 and drive mechanism 22 as a whole toward an axis near which the barrier 21 rotates. When the toothed portion 2123 of the movable body 212 engages with the gear 40, the continued shortening of the blocker 21 pushes the blocker 21 to rotate upward relative to the support seat 10, thereby lifting the entire blocker 20 upward. When the arresting device 20 needs to be put down, the driving motor 2221 rotates in the forward direction, the first nut 2223 and the second nut 2224 approach each other, so that the first connecting piece 2212 and the second connecting piece 2213 in the telescopic unit 2211 rotate relatively, the telescopic body 221 extends, the arresting piece 21 extends along with the first connecting piece 2213, the arresting device 20 gradually rotates downwards, the roller 2214 contacts with the ground, the telescopic body 221 continues to extend, and finally the arresting device 20 is restored to the original shape.
In this embodiment, the rotation of the arresting device 20 is realized by the engagement of the toothed portion 2123 of the movable body 212 with the gear 40, which can increase the upward rotation range of the arresting device 20.
The rest of the structure of this embodiment is the same as embodiment 1, and is not described herein again.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A tunnel entrance guard device, its characterized in that includes:
a supporting seat;
the barrier device comprises a barrier piece and a driving mechanism, the barrier piece comprises a fixed body and a movable body, the fixed body is rotatably connected with the supporting seat, the movable body can move relative to the fixed body so as to extend or shorten the barrier piece, and the driving mechanism is used for driving the movable body to move relative to the fixed body;
the supporting seat is provided with a stopping piece, the stopping piece is fixed on the supporting seat, and when the movable body moves relative to the fixed body and shortens the stopping piece, the movable body can be contacted with the stopping piece so as to push the fixed body to rotate upwards relative to the supporting seat.
2. The tunnel entrance guard device of claim 1, wherein the drive mechanism comprises a telescopic body and a drive device;
the telescopic body is positioned on the lower side of the barrier and connected with the barrier;
the driving device is used for driving the telescopic body to extend or shorten, the blocking piece extends when the telescopic body extends, and the blocking piece shortens when the telescopic body shortens.
3. The tunnel entrance guard device of claim 2, wherein the telescopic body comprises a plurality of telescopic units arranged side by side, the telescopic units comprise a first connecting piece and a second connecting piece, the first connecting piece is hinged with the second connecting piece, and the first connecting piece and the second connecting piece are arranged in a crossed manner;
two adjacent flexible units are first flexible unit and second flexible unit, the one end of the first connecting piece of first flexible unit with the one end of the second connecting piece of second flexible unit is articulated, the one end of the second connecting piece of first flexible unit with the one end of the first connecting piece of second flexible unit is articulated.
4. The tunnel entrance guard device according to claim 3, wherein the telescopic unit located at one end of the telescopic body in the telescopic direction is a third telescopic unit;
the driving device comprises a driving motor, a screw rod, a first nut and a second nut;
the screw rod is rotationally connected with the fixed body, and the driving motor is used for driving the screw rod to rotate;
the lead screw includes levogyration screw thread section and dextrorotation screw thread section, first nut spiro union in levogyration screw thread section, second nut spiro union in dextrorotation screw thread section, the free end of the first connecting piece of the flexible unit of third with first nut is articulated, the free end of the second connecting piece of the flexible unit of third with second nut spiro union.
5. The tunnel entrance guard device according to claim 4, wherein the telescopic unit located at the other end of the telescopic body in the telescopic direction is a fourth telescopic unit;
the free end of the first connecting piece of the fourth telescopic unit is connected with the movable body;
and a roller for contacting with the ground is arranged at the free end of the second connecting piece of the fourth telescopic unit.
6. The tunnel access control device according to any one of claims 1 to 5, wherein the fixing body is provided with a through hole;
the movable body penetrates through the through hole, and the track line of the movable body moving along the through hole deviates from the axis of the fixed body rotating relative to the supporting seat.
7. The tunnel entrance guard device according to claim 6, wherein the abutting member has a contact surface whose distance from an axis of rotation of the fixture with respect to the support base gradually increases in a direction in which the fixture rotates upward with respect to the support base;
the movable body is provided with a first end, the first end penetrates through the through hole, and when the stopping piece is shortened, the first end can penetrate through the through hole to be contacted with the contact surface so as to push the fixed body to rotate upwards relative to the supporting seat.
8. The tunnel entrance guard device of claim 7, wherein the contact surface is a circular arc surface.
9. The tunnel entrance guard device of claim 6, wherein the abutting piece is a gear fixed to the supporting seat, and an axis of the gear coincides with an axis of the fixing body rotating relative to the supporting seat;
the movable body is provided with a tooth-shaped part, and when the barrier piece is shortened, the tooth-shaped part can be meshed with the gear so as to push the fixed body to rotate upwards relative to the supporting seat.
10. The tunnel entrance guard device of claim 6, wherein the fixing body comprises a rod portion and a supporting portion, the through hole is formed in the rod portion, the through hole penetrates through two ends of the rod portion in the length direction, one end of the supporting portion is connected with the rod portion, the supporting portion is perpendicular to the rod portion, and the supporting portion is rotatably connected with the supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810016900.3A CN108203945B (en) | 2018-01-08 | 2018-01-08 | Tunnel entrance guard device |
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| CN201810016900.3A CN108203945B (en) | 2018-01-08 | 2018-01-08 | Tunnel entrance guard device |
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| CN108203945A CN108203945A (en) | 2018-06-26 |
| CN108203945B true CN108203945B (en) | 2020-03-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098121A (en) * | 2018-10-30 | 2018-12-28 | 绍兴市非凡广告有限公司 | A kind of entrance guard device of automobile passage |
| CN109518626A (en) * | 2018-12-05 | 2019-03-26 | 天津市世纪博通科技有限责任公司 | A kind of telescopic pushing-off the wagons lever apparatus based on safety technological guard engineering |
| CN110777696B (en) * | 2019-11-20 | 2020-09-04 | 南通珂艾宸网络技术有限公司 | Crossroad people and vehicle cut-off device |
| CN114812826A (en) * | 2022-05-19 | 2022-07-29 | 深圳美铭高电子有限公司 | Door type human body temperature measuring instrument convenient to move |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204455912U (en) * | 2015-01-30 | 2015-07-08 | 南京铁道职业技术学院 | A kind of machine making factory road lifting gear |
| CN106284132A (en) * | 2016-08-09 | 2017-01-04 | 苏州见真物联科技有限公司 | A kind of intelligent access control system is with intercepting cross bar |
| JP6234520B1 (en) * | 2016-08-10 | 2017-11-22 | タキゲン製造株式会社 | Detachable pole |
| CN206736782U (en) * | 2017-04-26 | 2017-12-12 | 江西联胜智能设备有限公司 | Restrictor bar supporting mechanism |
| CN206768656U (en) * | 2017-04-28 | 2017-12-19 | 潘文忠 | Fishing rod type stretches railing |
-
2018
- 2018-01-08 CN CN201810016900.3A patent/CN108203945B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204455912U (en) * | 2015-01-30 | 2015-07-08 | 南京铁道职业技术学院 | A kind of machine making factory road lifting gear |
| CN106284132A (en) * | 2016-08-09 | 2017-01-04 | 苏州见真物联科技有限公司 | A kind of intelligent access control system is with intercepting cross bar |
| JP6234520B1 (en) * | 2016-08-10 | 2017-11-22 | タキゲン製造株式会社 | Detachable pole |
| CN206736782U (en) * | 2017-04-26 | 2017-12-12 | 江西联胜智能设备有限公司 | Restrictor bar supporting mechanism |
| CN206768656U (en) * | 2017-04-28 | 2017-12-19 | 潘文忠 | Fishing rod type stretches railing |
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| CN108203945A (en) | 2018-06-26 |
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Effective date of registration: 20200803 Address after: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Co-patentee after: THE THIRD ENGINEERING Co.,Ltd. OF THE HIGHWAY ENGINEERING BUREAU OF CCCC Patentee after: CHINA FIRST HIGHWAY ENGINEERING Co.,Ltd. Address before: 101100, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park Jinqiao technology industry base, 10 North San Sheng Road Patentee before: THE THIRD ENGINEERING Co.,Ltd. OF THE HIGHWAY ENGINEERING BUREAU OF CCCC |