CN209584818U - Modular rapid obstacle bridge section - Google Patents

Abstract

The utility model discloses a modular fast obstacle-crossing bridge section. The bridge joints used in traditional mechanized bridges can only erect a bridge with a constant length. The utility model includes two bridge section units; the single-side bridge section one and the single-side bridge section two of the bridge section unit both include a frame, a variable ramp, a ramp driving component, a connecting hook, a connecting hook fixing device and a connecting hook unlocking mechanism; the second unilateral bridge section also includes a hook, and the first unilateral bridge section also includes a pull rod mechanism; A convex joint is fixed on the top of one end with a variable ramp; the variable ramp is synchronously driven to expand by two ramp drive components; the connecting hook is inside the frame and is unlocked by the connecting hook unlocking mechanism. The utility model can not only erect two shorter bridges, but also connect two bridge unit units to form a long bridge;

Description

Modular rapid obstacle bridge section

technical field

The utility model belongs to the technical field of mechanized bridges, in particular to a modular fast obstacle-crossing bridge section.

Background technique

Due to natural disasters such as rainstorms, floods, mudslides, etc., it is easy to cause damage to roads and bridges. In the process of emergency rescue, it is usually necessary to erect emergency bridges to ensure the passage of equipment, vehicles and personnel. Fast and widely used. However, no matter how big the obstacle is for the traditional mechanized bridge, even if it is a small ditch obstacle, it can only erect a bridge with a constant length, resulting in a waste of use efficiency.

Contents of the invention

The purpose of this utility model is to address the deficiencies of the prior art, to provide a modular fast barrier-crossing bridge joint, which realizes the function of "one car with multiple bridges" compared with the traditional mechanized bridge bridge joint, that is, one mechanized bridge can carry According to the size of the obstacle, a longer bridge can be erected, or two shorter bridges can be erected separately, so as to avoid the waste of use efficiency.

The utility model comprises two bridge section units; the bridge section unit includes a unilateral bridge section 1, a unilateral bridge section 2 and a connecting plate connecting the unilateral bridge section 1 and the unilateral bridge section 2; the unilateral bridge section 2 The bridge section 1 and the unilateral bridge section 2 both include a frame, a variable ramp, a ramp driving component, a connecting hook, a connecting hook fixing device and a connecting hook unlocking mechanism; the unilateral bridge section 2 also includes a hook, and the unilateral bridge section 1 It also includes a pull rod mechanism; one end of the frame is equipped with a fixed ramp, and the other end is equipped with a variable ramp; the variable ramp and the arc slideway fixed in the frame form a sliding pair; the distance between the two ramp drive components Arranged in the frame; the ramp drive assembly includes a swing rod, hydraulic cylinder one and hydraulic cylinder two; the base of the hydraulic cylinder two is hinged to the frame; the piston rod of the hydraulic cylinder two is hinged to one end of the swing rod; the other end of the swing rod is connected to the The base of the hydraulic cylinder 1 is fixed and hinged with the frame; the piston rod of the hydraulic cylinder 1 is hinged with the variable ramp; A concave joint is fixed on the top of one end of the variable ramp; a convex joint is fixed on the top of one end of the variable ramp on the frame of the second bridge section on one side.

The connecting hook includes a hook body, a knuckle, a knuckle pin, a hook lock iron, a lock hook, an ear piece, a lock lift and a knuckle push iron; the hook body is provided with a central groove, and the head is provided with a hook The pin hole of the hook body; the tail of the hook body is fixed in the frame by the connecting hook fixing device; the bottom surface of the central groove is located at the head of the hook body, and a round hole of the hook body and a through groove of the hook body are opened, and the top surface of the central groove is located at the head of the hook body There is a hook body square hole at the position of the hook body; the axis of the hook body pin hole, the hook body square hole, the hook body round hole and the hook body through groove are all set in parallel; one end of the knuckle is provided with a knuckle pin hole, and the other end is provided with a lock groove; the surface flush with the top of the locking groove is the sliding surface of the hook lock iron; the sliding surface of the hook lock iron is perpendicular to the axis of the knuckle pin hole; the knuckle pin hole of the knuckle and the hook body pin hole of the hook body pass through The knuckle pin is hinged; the hook lock iron, lock hook, lug and knuckle push iron are all inside the hook body; there is a notch on the top of the hook lock iron; a connecting column is fixed in the notch; The knuckle tongue lock block; the bottom of the hook lock iron is provided with an integrally formed claw, which is embedded in the hook body through groove of the hook body. The bottom surface of the hook body through groove is an arc surface, and the inner normal of the arc surface faces The head of the hook body; the bottom surface of the claw is in contact with the bottom surface of the through groove of the hook body; the knuckle lock block of the hook lock iron is in contact with the sliding surface of the hook lock iron of the knuckle tongue; the lock hook hooks the hook lock iron at the connecting column, The top of the lock hook is hinged with one end of the lug, and the other end of the lug is hinged with the lock handle; the unlocking mechanism of the connecting hook drives the lock handle to move up and down; the bottom of the knuckle push iron is provided with an integrally formed round table, and the hook body of the round table and the hook body The circular hole constitutes a revolving pair; one end of the knuckle push iron is the action end of the hook lock iron, and the other end is the action end of the knuckle tongue.

The frame of the unilateral bridge section 2 is welded on the outer wall opposite to the unilateral bridge section 1; the frame of the unilateral bridge section 1 is provided with a pull rod mechanism on the outer wall opposite to the unilateral bridge section 2; the pull rod The mechanism includes a large angle plate, hook plate, shaft, rod 1, rod 2, column, extension spring, extension spring hook, extension spring seat and push electromagnet; the large angle plate is welded on the frame of the unilateral bridge section 1; A large through hole is opened, a small through hole is opened in the middle, and a limit pin is fixed at the other end; the large through hole of the hook plate is hinged with the large corner plate through a shaft; the small through hole of the hook plate is hinged with one end of the rod; the second rod is along the length of the rod The first through hole, the second through hole, the long circular groove and the fourth through hole are opened in sequence in the direction, and the third through hole is opened on the side wall of the long circular groove; the other end of the rod one is hinged with the rod two at the third through hole; The column and rod two are hinged at the second through hole; the rod two and the push electromagnet bolt of the push solenoid are hinged at the first through hole; the base of the push electromagnet is hinged with the frame of the unilateral bridge section one; One end of the spring hooks the fourth through hole of the rod two; the extension spring hook hooks the other end of the extension spring; the extension spring seat is fixed with the extension spring hook, and is welded with the frame of the unilateral bridge section one.

When the pulling electromagnet of the connecting hook unlocking mechanism is not working, the lower part of the lock lift is in the square hole of the hook body, and the upper disc is stuck outside the hook body; when the pulling electromagnet of the connecting hook unlocking mechanism is working, the hook lock iron The driving claw is in contact with the hook locking iron action end of the knuckle push iron, and the knuckle action end of the knuckle push iron is in contact with the arc action surface of the knuckle.

In the locked state of the connecting hook, the knuckle lock block of the hook lock iron falls on the locking groove of the knuckle.

The connecting hook fixing device includes a coupler pin, a coupler frame, a front slave plate, a limit plate, a hook body support column and a coupler pin support bolt; the upper and lower parts of the coupler frame are respectively provided with an upper pin hole and a lower pin hole; the tail of the hook body is embedded in the hook tail frame, and the coupler pin passes through the lower pin hole, the hook tail pin hole and the upper pin hole at the tail of the hook body in turn; a long round hole is opened in the lower part of the hook tail frame; the coupler pin holds the bolt through Long round hole, and against the bottom of the coupler pin; the front slave plate is fixed to the hook body; the limit plate is fixed to the front slave plate; the limit plate is fixed to the frame; the support column of the hook body is welded in the frame and supports the middle of the hook body .

The unlocking mechanism of the connecting hook includes a horseshoe ring, a hook lifting rod, a hook lifting rod seat and a pull electromagnet; the horseshoe ring passes through the lifting lug on the upper disc of the lock; one end of the hook lifting rod is hinged to the horseshoe ring through a pin , the other end is fixed with the middle part of the hook lifting rod cross bar; the hook lifting rod cross bar and the hook lifting rod base form a rotating pair; the hook lifting rod base is fixed with the frame; the hook lifting rod cross bar is provided with an integrally formed extension rod; The pulling electromagnet bolt is fixed with the armature of the pulling electromagnet, and forms a sliding pair with the chute of the extension rod; the seat body of the pulling electromagnet is fixed with the frame.

One end of the shaft realizes axial positioning through a shaft shoulder, and the other end is sleeved with a gasket and threaded with a round nut to realize axial positioning.

The beneficial effect that the utility model has:

1. The bridge section is equipped with a variable ramp. According to the size of the obstacle, a single section can be formed into a bridge, and two shorter bridges can be erected separately, or two bridge sections can be connected together to form a longer bridge. The function of "one vehicle with multiple bridges" avoids waste of use efficiency; when a single section is used as a bridge, the variable ramp is unfolded to become a ramp for vehicles to go up and down; when two bridge sections are to be connected together, the variable ramp The road is retracted to expose the concave-convex joint and the connecting hook to realize the rigid connection between the bridge nodes.

2. The hydraulic cylinder is used to control the variable ramp, which is small in size and light in weight, and it is easy to realize the expansion and retraction of the variable ramp. When a single-section bridge is formed, the hydraulic cylinder can also play a supporting role.

3. The hook and pull rod mechanism are used to prevent the two bridge sections from falling off during the cantilever erection process, the structure is simple and the work is reliable;

4. Use concave-convex joints and connecting hooks to realize the rigid connection and force requirements of the two bridge sections after the steel bridge is erected. The concave-convex joints bear the pressure at the top connection of the bridge section units after the bridge is erected, and the connecting hooks bear the bridge sections after the bridge is erected. Pull force at the connection at the bottom of the unit, the connection is convenient and safe and reliable.

Description of drawings

Fig. 1 is the three-dimensional view of bridge section unit of the present utility model;

Fig. 2 is a schematic diagram of the end of the bridge section unit provided with a variable ramp in the utility model;

Fig. 3 (a), 3 (b) are respectively the state schematic diagrams of the ramp drive assembly when the variable ramp is unfolded and folded in the utility model;

Fig. 4 (a), 4 (b) are respectively the top view and the internal sectional side view of the locking state of the connecting hook in the utility model;

Figure 5(a), 5(b) are respectively the top view and the internal sectional side view of the connecting hook in the unlocked state of the utility model;

Fig. 6 is a perspective view of the structure of the hook body in the utility model;

Fig. 7 is a perspective view of the structure of the knuckle in the utility model;

Fig. 8 is a perspective view of the structure of the hook lock iron in the utility model;

Figures 9(a) and 9(b) are respectively the internal sectional view and internal structure perspective view of the connecting hook when the connecting hook unlocking mechanism of the utility model is working;

Figures 10(a) and 10(b) are respectively a top view and a side sectional view of the interior of the bridge section unit of the present invention;

Fig. 11 is a perspective view of the structure of the hook tail frame in the utility model;

Fig. 12 is a structural perspective view of the tie rod mechanism in the utility model;

Figure 13(a) is a schematic diagram of the connection of two bridge section units of the present invention;

Fig. 13(b) is a schematic diagram of the internal structure of the junction of the two bridge section units of the utility model;

Figure 13(c) is an enlarged view of the structure of the hook and the rod mechanism after the two bridge section units of the utility model are connected;

In the figure: 1, bridge section unit, 1a, unilateral bridge section 2, 1b, the other end of the frame, 1c, unilateral bridge section 1, 1d, one end of the frame, 1e, concave joint, 1f, convex joint, 1g, Arc slideway, 2, variable ramp, 3, hook, 4, pull rod mechanism, 5, connecting hook, 6, swing rod, 7, hydraulic cylinder one, 8, hydraulic cylinder two, 9, knuckle tongue, 9a, Knuckle pin hole, 9b, sliding surface of hook lock iron, 9c, locking groove, 10, knuckle pin, 11, hook lock iron, 11a, notch, 11b, connecting column, 11c, claw, 11d, knuckle tongue Lock block, 12, hook tongue push iron, 12a, round platform, 13, hook body, 13a, hook body pin hole, 13b, hook body square hole, 13c, hook body round hole, 13d, hook body through groove, 13e, hook Tail pin hole, 14, locking hook, 15, lug, 16, lock handle, 16a, lifting lug, 17, coupler pin, 18, coupler frame, 18a, upper pin hole, 18b, lower pin hole, 18c, Oblong hole, 19, front slave plate, 20, limit plate, 21, hook support column, 22, horseshoe ring, 23, hook lifting rod, 24, hook lifting rod seat, 25, pull electromagnet, 25a, pull Type electromagnet bolt, 26, hook tail pin support bolt, 27, large angle plate, 28, hook plate, 29, shaft, 29a, shaft shoulder, 30, gasket, 31, round nut, 32, rod one, 33, rod Two, 34, column, 35, extension spring, 36, extension spring hook, 37, extension spring seat, 38, push-type electromagnet, 38a, push-type electromagnet bolt, 39, connection hook fixing device, 40, connection hook unlock mechanism.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Fig. 1, Fig. 2, Fig. 3 (a), Fig. 3 (b), Fig. 10 (a) and Fig. 10 (b), the modular rapid obstacle-over bridge section includes two bridge section units 1; Section unit 1 comprises unilateral bridge section 1c, unilateral bridge section 2 1a and the connection plate connecting unilateral bridge section 1c and unilateral bridge section 2 1a; unilateral bridge section 1c and unilateral bridge section 2 1a all Including frame, variable ramp 2, ramp drive assembly, connecting hook 5, connecting hook fixing device 39 and connecting hook unlocking mechanism 40; single side bridge section 2 1a also includes hook 3, single side bridge section 1c also includes pull rod Mechanism 4; one end 1d of the frame is provided with a fixed ramp, and the other end 1b is provided with a variable ramp 2; the variable ramp 2 and the arc slide 1g fixed in the frame form a sliding pair; the two ramps The spacing of the driving components is arranged in the frame; the ramp driving component includes a swing rod 6, a hydraulic cylinder 7 and a hydraulic cylinder 2 8; the base of the hydraulic cylinder 2 8 is hinged to the frame; the piston rod of the hydraulic cylinder 2 8 is hinged to one end of the swing rod 6 The other end of the swing rod 6 is fixed to the base of the hydraulic cylinder one 7, and is hinged with the frame; the piston rod of the hydraulic cylinder one 7 is hinged with the variable ramp 2; Bottom; the frame of unilateral bridge section 1c is provided with a variable ramp 2, and a concave joint 1e is fixed on the top; the frame of unilateral bridge section 2 1a is provided with a variable ramp 2, and a convex joint is also fixed on the top 1f.

As shown in Fig. 4 (a), Fig. 4 (b), Fig. 5 (a), Fig. 5 (b), Fig. 6, Fig. 7 and Fig. 8, connecting hook 5 comprises hook body 13, knuckle tongue 9, knuckle tongue Pin 10, hook lock iron 11, lock hook 14, lug 15, lock handle 16 and knuckle tongue push iron 12; the hook body 13 is provided with a central groove, the head is provided with a hook body pin hole 13a, and the tail is provided with a hook tail pin Hole 13e; the bottom surface of the central groove is located at the head of the hook body 13 and is provided with a hook body circular hole 13c and a hook body through groove 13d, and the top surface of the central groove is located at the position of the head of the hook body 13 and is provided with a hook body square hole 13b; The axes of pin hole 13a, hook body square hole 13b, hook body round hole 13c and hook body through groove 13d are all arranged in parallel; knuckle tongue 9 one end is provided with knuckle tongue pin hole 9a, and the other end is provided with locking groove 9c; The flat surface of the 9c groove top is the hook lock iron sliding surface 9b; the hook lock iron sliding surface 9b is perpendicular to the axis of the knuckle pin hole 9a; the knuckle pin hole 9a of the knuckle 9 and the hook body pin of the hook body 13 The hole 13a is hinged by the knuckle pin 10; the hook lock iron 11, the lock hook 14, the lug 15 and the knuckle push iron 12 are all inside the hook body 13; the top of the hook lock iron 11 is provided with a notch 11a; the notch 11a is fixed There is a connecting column 11b; the top of the hook lock iron 11 is also provided with an integrally formed knuckle lock block 11d; the bottom of the hook lock iron 11 is provided with an integrally formed finger 11c, and the finger 11c is embedded in the hook body channel 13d of the hook body 13 , the bottom surface of the hook body groove 13d is an arc surface, and the inner normal of the arc surface faces the head of the hook body 13; the bottom surface of the finger 11c is in contact with the bottom surface of the hook body groove 13d; Hook the hook lock iron 11 at the place, the top of the lock hook 14 is hinged with one end of the ear piece 15, and the other end of the ear piece 15 is hinged with the lock handle 16; the upper disc of the lock handle 16 is provided with a lifting ear 16a; When working, the lower part of the lock lift 16 is in the square hole 13b of the hook body, and the upper disc is stuck outside the hook body 13; the bottom of the knuckle push iron 12 is provided with an integrally formed round table 12a, and the round table 12a and the hook body round hole of the hook body 13 13c constitutes revolving pair; Knuckle tongue pushes away iron 12 one ends and is the hook lock iron effect end, and the other end is the knuckle effect end.

As shown in Figure 5(a) and Figure 5(b), when the connecting hook 5 is in the unlocked state, the knuckle 9 opens outward relative to the hook body 13, and the knuckle lock block 11d of the hook lock iron 11 falls on the knuckle 9. on the sliding surface 9b of the hook lock iron; as shown in Figure 4(a) and Figure 4(b), when the connecting hook 5 is in the locked state, the knuckle tongue 9 draws inward relative to the hook body 13, and the hook of the hook lock iron 11 The tongue lock block 11d falls on the locking groove 9c of the knuckle 9; as shown in Fig. 9(a) and Fig. 9(b), the connecting hook unlocking mechanism 40 works, and during the pull-up process of the lock lift 16, the hook locks the iron claw 11c contacts with the hook locking iron action end of the knuckle push iron 12 and pushes the knuckle push iron 12 to rotate, and the knuckle action end of the knuckle push iron 12 pushes the arc-shaped action surface of the knuckle 9, so that the knuckle 9 is opposite to the hook body 13 flared outwards.

As shown in Fig. 10 (a), Fig. 10 (b) and Fig. 11, the connecting hook fixing device 39 comprises a coupler pin 17, a coupler frame 18, a front slave plate 19, a limiting plate 20, a hook support column 21 and The coupler pin support bolt 26; the upper and lower parts of the coupler frame are provided with an upper pin hole 18a and a lower pin hole 18b; the tail of the hook body 13 is embedded in the coupler frame, and the coupler pin 17 passes through the lower pin hole 18b, The coupler pin hole 13e of 13 and the upper pin hole 18a; The coupler frame 18 bottom is provided with oblong hole 18c; The fixation of the hook tail frame 18; the front slave plate 19 is fixed with the hook body 13; the limit plate 20 is fixed with the front slave plate 19; the limit plate 20 is fixed with the frame; the hook body support column 21 is welded in the frame and supports the hook body 13 Central.

As shown in Fig. 9 (a), Fig. 10 (a) and Fig. 10 (b), connecting hook unlocking mechanism 40 comprises horseshoe ring 22, hook lifting rod 23, hook lifting rod seat 24 and pull type electromagnet 25; 22 passes through the lifting lug 16a of the lock; one end of the hook lift bar 23 is hinged with the horseshoe ring 22 through a pin, and the other end is fixed with the middle part of the hook lift bar cross bar 23a; the hook lift bar cross bar 23a and the hook lift bar seat 24 constitute Swivel pair; hook lift bar seat 24 is fixed with frame; Hook lift bar cross bar 23a is provided with integrally formed extension bar; Pull type electromagnet bolt 25a is fixed with the armature of pull type electromagnet 25, and with the extension bar The chute constitutes a sliding pair; the seat body of the pulling electromagnet 25 is fixed with the frame.

As shown in Fig. 2, Fig. 12, Fig. 13(a), Fig. 13(b) and Fig. 13(c), the frame of unilateral bridge section 1a is welded on the outer wall opposite to unilateral bridge section 1c. The framework of unilateral bridge section one 1c is provided with pull bar mechanism 4 on the relative outer wall of unilateral bridge section two 1a; Bar one 32, bar two 33, column 34, extension spring 35, extension spring hook 36, extension spring seat 37 and push-type electromagnet 38; Large angle plate 27 is welded on the frame of unilateral bridge section-1c; Hook plate 28 one ends A large through hole 28a is opened, a small through hole 28b is opened in the middle, and a limit pin is fixed at the other end; the large through hole 28a of the hook plate 28 is hinged with the large angle plate 27 through the shaft 29; one end of the shaft 29 realizes axial positioning through the shoulder 29a, The other end is sleeved with a gasket 30 and threaded with the round nut 31 to achieve axial positioning; the small through hole 28b of the hook plate 28 is hinged with one end of the rod one 32; the rod two 33 is sequentially provided with the first through hole 33a along the rod length direction , the second through hole 33b, the oblong groove 33e and the fourth through hole 33d, the side wall of the oblong groove 33e is provided with the third through hole 33c; the other end of the rod one 32 is hinged with the rod two 33 at the third through hole 33c; Column 34 and bar two 33 are hinged at the second through hole 33b place; The push type electromagnet bolt 38a of bar two 33 and push type electromagnet 38 is hinged at the first through hole 33a place; The frame of bridge section one 1c is hinged; extension spring 35 one end catches the fourth through hole 33d of bar two; extension spring hook 36 hooks extension spring 35 other ends; extension spring seat 37 and extension spring hook 36 are fixed, and The frame of bridge section 1c is welded.

The working principle of this modular rapid obstacle bridge section:

The modular bridge section is loaded on the erection mechanism, and there are two bridge section units 1 stacked up and down; before erection, the variable ramp is in an unfolded state. When the obstacles encountered ahead are small, the two bridge section units do not need to be connected, and the two bridges can be erected separately.

When the obstacles encountered ahead are relatively large, it is necessary to connect the two bridge elements to form a longer bridge to overcome the obstacles; the connection process of the two bridge elements is as follows:

1) The bridge section unit at the top moves forward, and the bridge section unit at the bottom lifts up, so that the two bridge section units are aligned and arranged one after the other, and the variable ramps 2 of the two bridge section units are arranged oppositely The hydraulic cylinder two 8 piston rods in the two bridge joint units start to retract, driving the swing rod 6 to rotate, and simultaneously the hydraulic cylinder two 8 itself also starts to rotate, and then the swing rod 6 drives the fixed hydraulic cylinder one 7 to swing around The center of rotation of the rod rotates, and at the same time, the piston rod of the hydraulic cylinder 1 retracts and then extends, driving the variable ramp 2 to slide along the circular arc slide 1g, thereby realizing the retraction of the variable ramp 2 and exposing the concave joint 1e, male joint 1f and connecting hook 5.

2) The two bridge joint units are close to each other, the push electromagnet 38 starts to work, the armature of the push electromagnet 38 is pushed out, and the rod two 33 is driven to rotate downward, and the rod one 32 is then driven downward, so that the tension spring 35 is Stretching, rod one 32 drives the hook plate 28 to rotate downward around the shaft 29, so as to ensure that the hook 3 and the hook plate 28 will not interfere when the two bridge joint units are close to each other; after the two bridge joint units are close to the two hook tongues 9 contact Continue to approach, the interaction of the two knuckle tongues 9 makes the knuckle tongue 9 rotate around the knuckle pin 10. The sliding surface 9b falls into the locking groove 9c to prevent the knuckle tongue 9 from rotating, and realize the locking of the connecting hook 5, and at the same time, the male joint 1f of each bridge unit extends into the female joint 1e of the opposite bridge unit; then , the push electromagnet 38 stops working, and under the effect of the extension spring 35, the lever two 33 rotates upwards, driving the lever one 32 to move upwards, and then drives the hook plate 28 to rotate upwards, so that the hook 3 hooks the limit pin of the hook plate 28 , and due to the effect of the tension spring 35, the hook plate 28 will not easily rotate downwards, so that the connection between the hook 3 and the hook plate 28 is more reliable, and then the rigid connection of the two bridge joint units is realized; wherein, the female joint 1e and the male joint The function of 1f is to bear the pressure at the top connection of the bridge section unit after the bridge is erected, and the function of the connecting hook 5 is to bear the pulling force at the bottom connection of the bridge section unit after the bridge is erected. The effect of the hook 3 and the hook plate 28 is to prevent the two bridge section units from breaking away when the bridge is erected after the connection of the two bridge section units is completed.

After the bridge is withdrawn, the separation process of the two bridge section units is specifically as follows: the push electromagnet 38 starts to work, the hook 3 is separated from the limit pin of the hook plate 28; the pull electromagnet 25 starts to work, and the pull electromagnet 25 The armature is retracted, driving the hook lift rod 23 to rotate, thereby pulling the lock lift 16 to move upward, and then pulling the hook lock iron 11 to break away from the locking groove 9c of the knuckle tongue 9, realizing the unlocking of the connecting hook 5, and the two bridge joint units can be separated smoothly; During the lifting process of the hook lock iron 11, the hook lock iron claw 11c of the hook lock iron 11 is in contact with the hook lock iron action end of the knuckle tongue push iron 12. After the two bridge section units are separated, the hook lock iron claw 11c pushes the hook The tongue pushing iron 12 rotates, and the knuckle action end of the knuckle pushing iron 12 pushes the arc-shaped active surface of the knuckle 9, so that the knuckle 9 opens outward relative to the hook body 13; The armature of the type electromagnet 25 stretches out, and at the same time due to the effect of gravity, the knuckle lock block 11d of the hook lock iron 11 falls on the hook lock iron sliding surface 9b of the knuckle 9, and the bottom of the lock lift 16 enters the hook of the hook body 13. In the body square hole 13b, the connecting hook 5 and the connecting hook unlocking mechanism 40 all get back to the initial position, and the push electromagnet 38 stops working and the hook plate 28 gets back to the initial position to get ready for the next connection.

Claims (6)

1. modularization fast obstacle bridge section, including two bridge section units, it is characterised in that: the bridge section unit includes unilateral bridge Section one, unilateral bridge section two and the connecting plate for connecting unilateral bridge section one and unilateral bridge section two；The unilateral bridge section one and unilateral Bridge section two includes frame, variable ramp, ramp driving assembly, connecting hook, the fixed device of connecting hook and connecting hook unlocking mechanism； Unilateral bridge section two further includes hook, and unilateral bridge section one further includes drag link mechanism；One end of frame is equipped with fixed ramp, the other end It is equipped with variable ramp；Variable ramp constitutes sliding pair with the circular arc slideway being fixed in frame；Between two ramp driving assemblies Away from being arranged in frame；The ramp driving assembly includes swing rod, hydraulic cylinder one and hydraulic cylinder two；The pedestal of hydraulic cylinder two with Frame articulation；The piston rod of hydraulic cylinder two and swing rod one end are hinged；The swing rod other end and the pedestal of hydraulic cylinder one are fixed, and and frame Frame is hinged；The piston rod of hydraulic cylinder one and variable ramp are hinged；One end bottom that frame is equipped with variable ramp is arranged in connecting hook； The frame of unilateral bridge section one is equipped at the top of the one end in variable ramp and is further fixed on female fitting；The frame of unilateral bridge section two is equipped with variable Convex joint is further fixed at the top of the one end in ramp；

The connecting hook includes that coupler body, hook bolt, coupler knuckle pin, coupler knuckle lock, latch hook, auricle, lock mention and push away iron with hook bolt；The hook Body offers central channel, and head offers coupler body pin hole；Coupler body tail portion is fixed in frame by the fixed device of connecting hook；Institute The bottom surface for stating central channel is located at coupler body head and offers coupler body circular hole and coupler body through slot, and central channel top surface is located at coupler body head and opens up There is coupler body square hole；Coupler body pin hole, coupler body square hole, coupler body circular hole and coupler body through slot axis be arranged in parallel；Hook bolt one end opens up There is hook bolt pin hole, the other end offers lock slots；The face concordant with lock slots groove top is coupler knuckle lock slide surface；Coupler knuckle lock slide surface Perpendicular to the axis of hook bolt pin hole；The hook bolt pin hole of hook bolt and the coupler body pin hole of coupler body are hinged by coupler knuckle pin；Coupler knuckle lock, lock Hook, auricle and hook bolt push away iron all inside coupler body；Notch is offered at the top of coupler knuckle lock；Connecting column is fixed in notch；Coupler knuckle lock Top is additionally provided with integrally formed hook bolt closing piece；Coupler knuckle lock bottom is equipped with integrally formed pusher dog, and pusher dog is embedded in the coupler body of coupler body In through slot, the bottom surface of coupler body through slot is arcwall face, and the inter normal of arcwall face is towards coupler body head；The bottom surface of pusher dog and coupler body are logical The bottom surface of slot contacts；The hook bolt closing piece of coupler knuckle lock and the coupler knuckle lock of hook bolt slide face contact；Latch hook catches on hook lock at connecting column Iron, hook top and auricle one end are hinged, and the auricle other end and lock mention hingedly；The connecting hook unlocking mechanism driving lock is put on Lower movement；Hook bolt pushes away iron bottom equipped with integrally formed rotary table, the coupler body circular hole composition revolute pair of rotary table and coupler body；Hook bolt pushes away iron One end is that coupler knuckle lock acts on end, and the other end is that hook bolt acts on end；

Hook is welded on the frame of the unilateral bridge section two lateral wall opposite with unilateral bridge section one；The frame of unilateral bridge section one with The opposite lateral wall of unilateral bridge section two is equipped with drag link mechanism；The drag link mechanism include big gusset, hanger plate, axis, bar one, Bar two, column, tension spring, tension spring hook, spring base and pushing-type electromagnet；Big gusset is welded on the frame of unilateral bridge section one；Hook Plate one end offers large through-hole, and middle part offers small through hole, and the other end is fixed with spacer pin；The large through-hole of hanger plate and big angle Plate is hinged by axis；The small through hole of hanger plate and one one end of bar are hinged；Bar two successively offers first through hole, along bar length direction The side-walls of two through-holes, oblong slots and fourth hole, oblong slots offer third through-hole；One other end of bar and bar two are logical in third It is hinged at hole；Column is hinged in the second through-hole with bar two；The pushing-type electromagnetism iron bolt of bar two and pushing-type electromagnet is in first through hole Place is hinged；The pedestal of pushing-type electromagnet and the frame articulation of unilateral bridge section one；Catch on the fourth hole of bar two in tension spring one end；Tension spring Hook catches on the tension spring other end；Spring base is fixed with tension spring hook, and the frame welding with unilateral bridge section one.

2. modularization fast obstacle bridge section according to claim 1, it is characterised in that: the drawing of the connecting hook unlocking mechanism Under the non-working condition of formula electromagnet, the lock portion of putting is in coupler body square hole, and upper disk is stuck in outside coupler body；Connecting hook unlocking mechanism Pull-type work of electromagnet state under, coupler knuckle lock pusher dog and hook bolt push away the coupler knuckle lock effect end in contact of iron, and hook bolt pushes away the hook bolt of iron The arc for acting on end and hook bolt acts on face contact.

3. modularization fast obstacle bridge section according to claim 1, it is characterised in that: the connecting hook lock state Under, the hook bolt closing piece of coupler knuckle lock is fallen on the lock slots of hook bolt.

4. modularization fast obstacle bridge section according to claim 1, it is characterised in that: the fixed device packet of the connecting hook Include coupler yoke key, couple yoke, preceding from plate, limit plate, coupler body support column and coupler yoke key support bolt；It opens respectively couple yoke upper and lower part Equipped with upper pin hole and lower pin hole；Coupler body tail portion is embedded in couple yoke, and coupler yoke key sequentially passes through the coupler yoke key of lower pin hole, coupler body tail portion Hole and upper pin hole；Couple yoke lower part offers slotted hole；Coupler yoke key support bolt passes through slotted hole, and resists coupler yoke key bottom end；Before It is fixed from plate and coupler body；Limit plate is fixed with preceding from plate；Limit plate is fixed with frame；Coupler body support column is welded in frame, and It supports in the middle part of coupler body.

5. modularization fast obstacle bridge section according to claim 1, it is characterised in that: the connecting hook unlocking mechanism packet Include horse-shoe collar, hook shadoof, hook uncoupling rod bracket and pull-type electromagnet；Horse-shoe collar passes through the lifting lug locked and mentioned on upper disk；Hook shadoof one End is hinged by pin shaft with horse-shoe collar, fixed in the middle part of the other end and hook shadoof cross bar；Hook shadoof cross bar and hook uncoupling rod bracket, which are constituted, to be turned Dynamic pair；Hook uncoupling rod bracket is fixed with frame；Hook shadoof cross bar is equipped with integrally formed extension bar；Pull-type electromagnetism iron bolt with it is pull-type Electromagnet armature is fixed, and constitutes sliding pair with the sliding slot of extension bar；The pedestal of pull-type electromagnet is fixed with frame.

6. modularization fast obstacle bridge section according to claim 1, it is characterised in that: one end of the axis passes through shaft shoulder reality Existing axially position, the other end are nested with gasket, and are threadedly coupled with round nut and realize axially position.