Dike height limit gantry

Abstract

The invention provides a dike height limit door frame; it includes a crossbeam, a column, a locking mechanism and a hanging mechanism; a slot opening is provided on the side wall of the column, a locking slot is provided at the bottom of the slot opening of each column, and plug blocks are provided at both ends of the crossbeam; two sets of locking mechanisms are respectively arranged at both ends of the crossbeam, a movable slide is provided in the lock box of the locking mechanism, a lock tongue extends into the lock box and cooperates with the lock slot of the column, a locking hole is provided on the lock tongue, a locking pin is provided on the inner wall of the locking hole, a lock hole is provided at the bottom of the lock box, a lock head of the lock rod has a traction groove on the outer wall, the lock head is installed at the beginning of the tube body, the lock head is fixedly connected to the beginning of the flexible shaft, and the flexible shaft is sleeved in the tube body; the two ends of the locking plate of the hanging mechanism are fixed on the upper end face of the crossbeam, a gap is reserved between the middle of the locking plate and the upper end face of the crossbeam, and the plug plate is hinged on the upper end face of the column through a rotating shaft. The crossbeam of the dike height limit door can be adjusted to two heights through a locking mechanism or a hanging mechanism to meet different conditions and allow different vehicles to pass through the dike height limit door.

Description

Technical Field

[0001] The invention relates to a dike height-limiting portal frame. Background Art

[0002] The main purpose of the levee height limit gantry is to restrict overweight and overheight vehicles from driving on the levee top road and damaging the levee and road surface. However, the existing levee height limit gantry is a fixed structure, and the height position of the height limit beam cannot be changed according to the usage. In addition, during emergencies or flood prevention and rescue, the levee height limit gantry must be able to open to allow large rescue vehicles to pass on the levee top road. The existing levee height limit gantry does not have such a structure. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a dike height-limiting portal frame which has a reasonable structure and can adjust the height of the crossbeam or directly remove the crossbeam.

[0004] In order to solve the above technical problems, the present invention provides a dike height-limiting portal frame;

[0005] It includes a crossbeam, two upright posts, two sets of locking mechanisms and two sets of hooking mechanisms;

[0006] The two columns are respectively fixed vertically, and the side walls of the columns are provided with slots, the direction of the slots is consistent with the vertical direction, and the slots extend to the upper end surface of the columns. The slots of the two columns are arranged oppositely, and a locking groove is provided at the bottom of the slot of each column. Insert blocks matching with the slots of the columns are respectively provided at both ends of the crossbeam;

[0007] Two groups of locking mechanisms are respectively arranged at both ends of the beam, and the two groups of locking mechanisms correspond to the two columns one by one. The locking mechanism includes a lock box, a lock tongue and a lock rod. The lock box is embedded in the bottom of the corresponding plug block of the beam. A movable slideway for the lock tongue to reciprocate is provided in the lock box. The lock tongue extends into the lock box and cooperates with the lock groove of the column. The height of the lock groove is higher than the height of the lock tongue. A locking hole is provided on the end surface of the lock tongue away from the column. The axial direction of the locking hole is consistent with the direction of the movable slideway. At least one locking pin is provided on the inner wall of the locking hole. A lock hole for the lock rod to enter is provided at the bottom of the lock box. The length direction of the lock hole is consistent with the length direction of the movable slideway. The lock rod includes a tube The locking head comprises a body, a flexible shaft and a locking head, wherein the outer contour of the locking head matches the locking hole of the locking tongue, the locking head is provided with at least one traction groove on the outer wall, the traction groove corresponds to the locking pin one by one, the traction groove comprises a first-stage groove and a second-stage groove, the first-stage groove starts and extends to the end face of the locking head, the direction of the first-stage groove is consistent with the axial direction of the locking head, the first-stage groove ends and is connected with the second-stage groove starts, the direction of the second-stage groove is consistent with the circumferential direction of the locking head, the locking head is installed at the starting end of the tube body, the locking head can rotate circumferentially relative to the tube body, the locking head is fixedly connected to the starting end of the flexible shaft, the flexible shaft is sleeved in the tube body, and a bend is provided in the middle of the tube body;

[0008] Two sets of hanging mechanisms are also arranged at both ends of the beam, and the two sets of hanging mechanisms correspond to the two columns one by one. The hanging mechanism includes a locking plate, a rotating shaft and an inserting plate. Both ends of the locking plate are fixedly connected to the upper end surface of the beam. A gap is reserved between the middle part of the locking plate and the upper end surface of the beam for the inserting plate to extend into. The inserting plate is hinged to the upper end surface of the column through the rotating shaft. The rotation axis of the rotating shaft is in the vertical direction, and the length of the inserting plate is greater than the width of the slot opening.

[0009] After adopting such a structure, the crossbeam of the dike height limit gate can be adjusted to two heights through a locking mechanism or a hanging mechanism to allow different vehicles to pass through the dike height limit gate in different situations; and in an emergency, the crossbeam can be removed from the columns on both sides to allow any vehicle to pass.

[0010] This embankment height limit gate can restrict overweight and overheight vehicles from driving on the embankment road and damaging the embankment and road surface. However, during emergencies or flood prevention and rescue operations, this embankment height limit gate will be opened to allow large rescue vehicles to pass on the embankment road.

[0011] In addition, in actual operation, it is also necessary to prevent deliberate destruction and arbitrary opening by other personnel. Therefore, this dike height limit door is equipped with a locking mechanism, which cannot be opened without special tools after being locked.

[0012] The end of the flexible shaft of the dike height limit door is fixedly connected to the rotating handle, and the rotating handle is located at the end of the tube body; after adopting such a structure, operating the rotating handle drives the flexible shaft and the lock head to rotate, which is convenient for daily unlocking operations.

[0013] A support rod is fixedly connected to the side wall of the tube body near the end of the dike height limit gate. After adopting such a structure, if the resistance to the movement of the lock tongue is large, the support rod can assist the lock rod in driving the lock tongue to move, so that the two-handed push and pull operation of the lock rod can be achieved with less effort.

[0014] A plurality of locking pins extend from the inner wall of the locking hole of the dike height limit door, and the plurality of locking pins are distributed in an uneven circumference along the axis of the locking hole;

[0015] The lock head is provided with a plurality of traction grooves on its outer wall, and the traction grooves correspond to the locking pins one by one.

[0016] After adopting such a structure, the traction groove position of the lock head is adjusted according to the different central angles of the locking pin, so that a lock tongue can be matched with a lock rod, avoiding the problem of other people opening the dike height limit door frame at will due to the universal lock rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of the embodiment of the dike height limiting gantry in the height limiting state.

[0018] Figure 2It is a sectional view of the main view of the dike height limiting gantry embodiment in the height limiting state.

[0019] Figure 3 It is a sectional view of the main view of the embodiment of the dike height limiting gantry in a normal height limiting state.

[0020] Figure 4 It is a schematic diagram of the locking mechanism of the dike height limiting portal frame embodiment when it is opened.

[0021] Figure 5 It is a right side view of the lock tongue of the embodiment of the dike height limiting portal frame.

[0022] Figure 6 It is a bottom view of the lock box of the dike height limit door frame embodiment.

[0023] Figure 7 It is a front view of the locking rod of the embodiment of the dike height limiting portal frame.

[0024] Figure 8 It is a front view of the lock of the embodiment of the dike height limiting portal frame. DETAILED DESCRIPTION

[0025] like Figures 1 to 8 Shown

[0026] The dike height-limiting portal frame comprises a crossbeam 3, two upright posts 2, two sets of locking mechanisms and two sets of hanging mechanisms.

[0027] The two uprights 2 are fixed vertically respectively, and a slot opening 22 is opened on the side wall of each upright 2. The direction of the slot opening 22 is consistent with the vertical direction, the slot opening 22 extends to the upper end surface of the upright 2, and the lower end of the slot opening 22 extends to the middle part of the upright 2. The slot openings 22 of the two uprights 2 are arranged relatively, and the uprights 2 are embedded with a locking box 21, which is installed inside the uprights 2 to limit the height of the crossbeam 3. The locking box 21 is made of 20mm thick 45# steel plate. The opening of the locking box 21 is at the bottom of the groove wall of the slot opening 22. A lock groove 21a that cooperates with the lock tongue 12 is formed in the locking box 21. The height of the lock groove 21a is higher than the height of the lock tongue 12. The locking box 21 is subjected to the shear force transmitted by the locking pin 12a2 under abnormal circumstances. The locking pin 12a2 is pushed out and inserted into the locking box 21. The crossbeam 3 is in a locked state and can only be lifted upward by 200mm to facilitate the unlocking operation. The lock grooves of the two uprights 2 are also arranged relatively.

[0028] Insert blocks 31 are respectively provided at both ends of the cross beam 3 to match with the slots 22 of the upright column 2 .

[0029] Two sets of locking mechanisms are respectively arranged at both ends of the beam 3, and the two sets of locking mechanisms correspond to the two columns 2 one by one. The lock box 11 is welded to the bottom of the plug block 31 of the beam 3, and the lock box 11 is located close to the corresponding column 2. The inner cavity of the lock box 11 constitutes a movable slide 11a for the reciprocating movement of the lock tongue 12. The cross-sectional shape of the movable slide 11a is consistent with the cross-sectional shape of the lock tongue 12. The movable slide 11a extends to the side wall of the plug block 31 close to the column 2. The length of the movable slide 11a is longer than the length of the lock tongue 12. The lock tongue 12 cooperates with the lock box 11. A lock hole 11b for the locking rod 13 to enter is opened at the bottom of the lock box 11, and the length direction of the lock hole 11b is consistent with the length direction of the movable slide 11a.

[0030] The locking tongue 12 is provided with a locking block 12a extending away from the column 2, and a locking hole 12a1 is formed on the end face of the locking block 12a. The axial direction of the locking hole 12a1 is consistent with the direction of the movable slide 11a. Two locking pins 12a2 are provided on the locking block 12a, and the two locking pins 12a2 penetrate the side wall of the locking block 12a along the radial direction of the locking hole 12a1 and extend into the locking hole 12a1. The central angle corresponding to the two locking pins 12a2 is 60° (in actual use, according to the different central angles of the locking pins 12a2, the two sets of locking mechanisms are provided with a total of multiple types of locking rods 13 to cooperate, and the same type of locking pins 12a2 are universal in operating the locking rods 13, and each embankment management office has one type), that is, the locking pins 12a2 are unevenly distributed along the axis of the locking hole 12a1.

[0031] The lock rod 13 includes a tube body 13c, a flexible shaft 13e and a lock head 13a. The outer contour of the lock head 13a matches the locking hole 12a1 of the lock tongue 12. The lock head 13a has two L-shaped traction grooves 13b on its outer wall. The two traction grooves 13b correspond to the two locking pins 12a2 one by one. The traction grooves 13b cooperate with the corresponding locking pins 12a2. Each traction groove 13b includes a first-stage groove 13b1 and a second-stage groove 13b2. The first-stage groove 13b1 starts and extends to the end surface of the lock head 13a. The direction of the first-stage groove 13b1 is consistent with the axial direction of the lock head 13a. The end of the first-stage groove 13b1 is connected to the beginning of the second-stage groove 13b2. The direction of the second-stage groove 13b2 is consistent with the circumferential direction of the lock head 13a. The lock head 13a is installed at the beginning of the tube body 13c. The lock head 13a can rotate circumferentially relative to the tube body 13c. The lock head 13a is fixedly connected to the beginning of the flexible shaft 13e. The flexible shaft 13e is sleeved in the tube body 13c. A bend is provided in the middle of the tube body 13c. The end of the flexible shaft 13e is fixed to the rotating handle 13d. The rotating handle 13d is at the end of the tube body 13c. A support rod 13f is welded on the side wall of the tube body 13c near the end.

[0032] Two sets of hanging mechanisms are also arranged at both ends of the beam 3, and the two sets of hanging mechanisms correspond one to one with the two columns 2. Each set of hanging mechanisms includes a locking plate 41, a rotating shaft 42 and an insert plate 43. The two ends of the locking plate 41 are fixed to the upper end surface of the beam 3 by bolts. A gap is reserved between the locking plate 41 and the upper end surface of the beam 3 for the insert plate 43 to extend into. The insert plate 43 is hinged to the upper end surface of the column 2 through the rotating shaft 42. The rotation axis of the rotating shaft 42 is in the vertical direction, and the length of the insert plate 43 is greater than the width of the slot opening 22.

[0033] This embankment height limit gate has three usage states: the first is the normal height limit state, in this state, the locking tongues of the two sets of locking mechanisms cooperate with the locking grooves of the column 2, the crossbeam 3 is arranged horizontally and is 2m high from the road surface, restricting medium and large vehicles from traveling on the embankment top road; the second is the elevation limit state, in this state, the locking tongues of the two sets of locking mechanisms are no longer coordinated with the locking grooves of the column 2, the two ends of the crossbeam 3 are fixed to the top of the column 2 by a hanging mechanism, the crossbeam 3 is arranged horizontally and is 3m high from the road surface, allowing large emergency rescue vehicles to pass on the embankment top road; the third is the unrestricted state, in this state, the coordinated connection between the two sets of locking mechanisms and the hanging mechanism is removed, the crossbeam 3 is removed from the columns 2 on both sides, and any vehicle can pass in an emergency.

[0034] When the height-limited portal frame of the dike is in the normal height-limited state, the cross beam 3 of the height-limited portal frame of the dike is lifted horizontally by 150 mm using lifting equipment (crane or jack), and the locking tongue 12 is also moved upward by 150 mm and the end of the locking tongue 12 is still in the locking groove 21 a. The locking holes 11 b at the bottom of both ends of the lifted cross beam 3 are exposed, and 150 mm high safety protection blocks are placed at both ends. The lock head 13 a of the locking rod 13 is inserted from the lock hole 11 b into the locking hole 12 a1 of the locking block 12 a. During the insertion process, a feel of When blocking, gently push forward while slowly turning the rotating handle 13d at the rear of the locking rod 13. When the circumferential angle of the traction groove 13b is aligned with the axial angle of the locking pin 12a2, the locking rod 13 can move forward a little further until the locking pin 12a2 moves to the end of the first-stage groove 13b1. Turn the rotating handle 13d again to make the locking pin 12a2 enter the second-stage groove 13b2. The locking pin 12a2 can get stuck in the lock head 13a, and the locking rod 13 can be pulled to move the lock tongue 12 to the unlocking position.

[0035] On the contrary, the lock rod 13 can be withdrawn from the lock tongue 12. If the movement resistance of the lock tongue 12 is large, the support rod 13f on the lock rod 13 can be assisted to realize the operation of pushing and pulling the lock rod 13 with both hands, which can save effort.

[0036] During maintenance, it is recommended to perform maintenance on the two sets of locking mechanisms once before the flood season every year. During maintenance, the crossbeam 3 needs to be removed, the lock tongue 12 needs to be taken out, the lock box 21, the inner surface of the lock box 11 and the outer surface of the lock pin 12a2 need to be cleaned and greased for corrosion prevention, and the inside of the lock hole 12a1 should also be cleaned and lubricated.

[0037] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art may make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as falling within the scope of protection of the present invention.

Claims

1. A dike height-limiting portal frame, characterized by: It includes a crossbeam, two upright posts, two sets of locking mechanisms and two sets of hooking mechanisms; The two columns are respectively fixed vertically, and the side walls of the columns are provided with slots, the direction of the slots is consistent with the vertical direction, and the slots extend to the upper end surface of the columns. The slots of the two columns are arranged oppositely, and a locking groove is provided at the bottom of the slot of each column. Insert blocks matching with the slots of the columns are respectively provided at both ends of the crossbeam; Two groups of locking mechanisms are respectively arranged at both ends of the beam, and the two groups of locking mechanisms correspond to the two columns one by one. The locking mechanism includes a lock box, a lock tongue and a lock rod. The lock box is embedded in the bottom of the corresponding plug block of the beam. A movable slideway for the lock tongue to reciprocate is provided in the lock box. The lock tongue extends into the lock box and cooperates with the lock groove of the column. The height of the lock groove is higher than the height of the lock tongue. A locking hole is provided on the end surface of the lock tongue away from the column. The axial direction of the locking hole is consistent with the direction of the movable slideway. At least one locking pin is provided on the inner wall of the locking hole. A lock hole for the lock rod to enter is provided at the bottom of the lock box. The length direction of the lock hole is consistent with the length direction of the movable slideway. The lock rod includes a tube The locking head comprises a body, a flexible shaft and a locking head, wherein the outer contour of the locking head matches the locking hole of the locking tongue, the locking head is provided with at least one traction groove on the outer wall, the traction groove corresponds to the locking pin one by one, the traction groove comprises a first-stage groove and a second-stage groove, the first-stage groove starts and extends to the end face of the locking head, the direction of the first-stage groove is consistent with the axial direction of the locking head, the first-stage groove ends and is connected with the second-stage groove starts, the direction of the second-stage groove is consistent with the circumferential direction of the locking head, the locking head is installed at the starting end of the tube body, the locking head can rotate circumferentially relative to the tube body, the locking head is fixedly connected to the starting end of the flexible shaft, the flexible shaft is sleeved in the tube body, and a bend is provided in the middle of the tube body; Two sets of hanging mechanisms are also arranged at both ends of the beam, and the two sets of hanging mechanisms correspond to the two columns one by one. The hanging mechanism includes a locking plate, a rotating shaft and an inserting plate. Both ends of the locking plate are fixedly connected to the upper end surface of the beam. A gap is reserved between the middle part of the locking plate and the upper end surface of the beam for the inserting plate to extend into. The inserting plate is hinged to the upper end surface of the column through the rotating shaft. The rotation axis of the rotating shaft is in the vertical direction, and the length of the inserting plate is greater than the width of the slot opening.

2. The dike height limiting gantry according to claim 1 is characterized in that: The end of the flexible shaft is fixedly connected to a rotating handle, and the rotating handle is located at the end of the tube body.

3. The dike height limiting gantry according to claim 1 is characterized in that: A support rod is fixedly connected to the side wall of the tube body near the end position.

4. The dike height limiting gantry according to claim 1 is characterized in that: A plurality of locking pins extend from the inner wall of the locking hole, and the plurality of locking pins are distributed non-uniformly along the axis of the locking hole; The lock head is provided with a plurality of traction grooves on its outer wall, and the traction grooves correspond to the locking pins one by one.

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