Connecting mechanism of rescue vehicle

Abstract

The connecting mechanism of the rescue vehicle comprises a first pull rod, a second pull rod and a connecting base, the connecting base is fixedly connected to the rescue vehicle, the first pull rod and the second pull rod are each provided with a connecting hole, the two connecting holes are detachably and rotationally connected through a pin shaft, and the connecting base and the second pull rod are rotationally connected through a pin shaft. The hinge base is fixedly installed at the end, away from the pin shaft, of the first pull rod, the two first movable plates are symmetrically and rotationally arranged in the hinge base, a steering groove is formed in the other end of each first movable plate, and the second movable plates are symmetrically and rotationally arranged in the steering groove. And a second movable plate is rotationally installed in each steering groove, the opening and closing mechanism is arranged on the first pull rod, the two second supporting mechanisms are arranged on the two first movable plates correspondingly, and the problems that in the related technology, time and labor are wasted during operation of a pull rod mechanism, and the rescue efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connection mechanisms, and more specifically, to a connection mechanism for a rescue vehicle. Background Art

[0002] For safety reasons, mounting holes for connecting rescue vehicles are provided at both ends of the head of a train of rail vehicles. The connection between the rail vehicle and the rescue vehicle is achieved through a drawbar mechanism. The left and right sides of the drawbar mechanism are respectively installed on the rail vehicle and the rescue vehicle, and the rescue vehicle provides the drive to enable the rail vehicle to run without power.

[0003] The existing drawbar mechanism is usually connected to the vehicle through a pin shaft. After the rescue vehicle and the vehicle to be rescued are docked, it is necessary to continuously adjust the distance between the two vehicles to align the drawbar mechanism and the mounting hole, and then insert the pin shaft into the mounting hole to achieve the connection. This method is time-consuming and laborious, affecting the rescue efficiency. Summary of the Utility Model

[0004] The utility model provides a connection mechanism for a rescue vehicle, which solves the problems of time-consuming and laborious operation of the drawbar mechanism in the related art and low rescue efficiency.

[0005] The technical solution of the utility model is as follows: A connection mechanism for a rescue vehicle includes a first drawbar, a second drawbar and a connection seat. Connection holes are provided on both the first drawbar and the second drawbar, and the two connection holes are detachably and rotatably connected through a pin shaft. The connection seat is also rotatably connected to the second drawbar through the pin shaft. The connection mechanism further includes:

[0006] A hinge seat fixedly installed at one end of the first drawbar away from the pin shaft;

[0007] A first movable plate, which is arc-shaped. Two first movable plates are symmetrically and rotatably arranged in the hinge seat;

[0008] A second movable plate, which is also arc-shaped. A steering groove is provided at the other end of the first movable plate, and a second movable plate is rotatably installed in each steering groove;

[0009] Wherein, the two second movable plates and the two first movable plates enclose an annular cavity;

[0010] A tension spring arranged between the second movable plate and the first movable plate;

[0011] An opening and closing mechanism arranged on the first drawbar for driving the two first movable plates to open and close;

[0012] The first support mechanism, there are two of the first support mechanisms, and the two first support mechanisms are respectively arranged on both sides of the first pull rod for pressing against the two first movable plates;

[0013] The second support mechanism, there are two of the second support mechanisms, and the two second support mechanisms are respectively arranged on the two first movable plates for pressing against the two second movable plates respectively.

[0014] Furthermore, the opening and closing mechanism includes:

[0015] A rotating seat, and the rotating seat is installed on the outer side wall of each first movable plate;

[0016] A connecting frame, the connecting frame is located above the hinge seat, and both ends of the connecting frame are inclined towards the direction of the first pull rod, and strip-shaped chutes are arranged at both ends of the connecting frame;

[0017] A connecting rod, one end of the connecting rod is rotatably connected to the rotating seat, and the other end of the connecting rod is slidably arranged in the strip-shaped chute;

[0018] A first electric cylinder, the first electric cylinder is installed on the first pull rod, and the output end of the first electric cylinder is fixedly connected to the central position of the connecting frame through a pulling block.

[0019] Furthermore, the first support mechanism includes:

[0020] A support shaft, and the support shaft is fixedly installed on the outer side wall of the first movable plate;

[0021] A fixing plate, and the fixing plate is installed on both sides of the hinge seat;

[0022] A second electric cylinder, and the second electric cylinder is fixedly installed on the fixing plate;

[0023] A pressing head, and the pressing head is arranged at the output end of the second electric cylinder.

[0024] Furthermore, the second support mechanism includes:

[0025] A support plate, and the support plate is fixedly installed at a position on the outer side wall of the first movable plate close to the steering groove;

[0026] A screw rod, a screw hole is opened on the support plate, and the screw rod is threadedly connected in the screw hole;

[0027] A top head, and the top head is rotatably installed at the end of the screw rod;

[0028] A top block, and the top block is fixedly connected to the outer side wall of the second movable plate.

[0029] Furthermore, a force-bearing plate is provided on the inner wall of the movable plate 1 and the movable plate 2, wherein one end of the tension spring is connected to the movable plate 2, and the other end of the tension spring is connected to the force-bearing plate located on the movable plate 1.

[0030] The working principle and beneficial effects are:

[0031] 1. In the utility model, the device is installed on the rescue vehicle, and then the rescue vehicle directly aligns the device with the trailer hook of the rescued vehicle and reverses. The movable plate 2 is flipped toward the inside of the annular cavity under the push of the trailer hook. After the trailer hook completely enters the annular cavity, the movable plate 2 rotates back to its original position under the action of the tension spring, so that the movable plates 1 and 2 completely surround the trailer hook, and the rescue vehicle and the rescued vehicle can be quickly connected.

[0032] 2. In the utility model, the screw rod threadedly connected on the rotating support plate is rotated, thereby driving the top head provided on the screw rod to press against the top block provided on the movable plate 2, thereby tightening the movable plate 2 to prevent the movable plate 2 from rotating and separating from the trailer hook when the trailer generates pulling force, thereby ensuring reliability of use.

[0033] 3. In the utility model, the first electric cylinder provided on the pull rod is contracted, thereby driving the connecting frame connected to the output end of the first electric cylinder to move. During the movement, one end of the connecting rod and the rotating seat rotate relative to each other, and the other end of the connecting rod slides between the strip slide groove on the connecting frame, thereby opening the two movable plates and releasing the connection between the rescue vehicle and the rescued vehicle.

[0034] 4. In the utility model, the second electric cylinder provided on the fixed plate drives the clamping head to extend, so that the clamping head is pressed against the supporting shaft provided on the movable plate 1, thereby clamping the movable plate 1 when pulling the rescued vehicle, preventing it from falling off and ensuring the reliability of use.

[0035] 5. In the utility model, through the cooperation between the pull rod 1, the pull rod 2, the connecting seat, the movable plate 1, the movable plate 2, the tension spring, the opening and closing mechanism, the first supporting mechanism and the second supporting mechanism, it can be quickly connected to the rescued vehicle without excessive manual assistance, which is time-saving and labor-saving and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0038] Figure 2Structural schematic diagrams of the opening and closing mechanism, the first support mechanism, and the second support mechanism of the present utility model;

[0039] Figure 3 Structural schematic diagram of the present utility model in a bottom view state;

[0040] Figure 4 For the present utility model Figure 2 Partial enlarged structural schematic diagram at position A in the present utility model;

[0041] Figure 5 For the present utility model Figure 2 Partial enlarged structural schematic diagram at position B in the present utility model;

[0042] Figure 6 Structural schematic diagram of the connection between the first movable plate and the second movable plate of the present utility model.

[0043] In the figure: 1. First pull rod; 2. Second pull rod; 3. Pin shaft; 4. Connection seat; 5. First movable plate; 6. Second movable plate; 7. Tension spring; 8. Rotating seat; 9. Connection frame; 10. Pulling block; 11. First electric cylinder; 12. Support shaft; 13. Fixed plate; 14. Second electric cylinder; 15. Tightening head; 16. Support plate; 17. Screw rod; 18. Top block; 19. Top head; 20. Hinge seat; 21. Stress plate. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0045] Embodiment: As Figures 1 - 6As shown in the figure, this embodiment proposes a connecting mechanism for a rescue vehicle, which includes a first pull rod 1, a second pull rod 2, and a connecting seat 4. The connecting seat 4 is fixedly connected to the rescue vehicle. Connecting holes are provided on both the first pull rod 1 and the second pull rod 2, and the two connecting holes are detachably and rotatably connected by a pin shaft 3. The connecting seat 4 and the second pull rod 2 are also rotatably connected by a pin shaft 3, which facilitates disassembly and installation during use. It further includes: a hinge seat 20, a first movable plate 5, a second movable plate 6, a tension spring 7, an opening and closing mechanism, a first support mechanism, and a second support mechanism. The hinge seat 20 is fixedly installed at one end of the first pull rod 1 away from the pin shaft 3. The first movable plate 5 is arc-shaped, and two first movable plates 5 are symmetrically and rotatably arranged in the hinge seat 20. The second movable plate 6 is also arc-shaped. A turning groove is provided at the other end of the first movable plate 5, and a second movable plate 6 is rotatably installed in each turning groove. The two second movable plates 6 and the two first movable plates 5 enclose an annular cavity. The tension spring 7 is arranged between the second movable plate 6 and the first movable plate 5. The opening and closing mechanism is arranged on the first pull rod 1 and is used to drive the two first movable plates 5 to open and close. There are two first support mechanisms, and the two first support mechanisms are respectively arranged on both sides of the first pull rod 1 and are used to tightly press the two first movable plates 5. There are two second support mechanisms, and the two second support mechanisms are respectively arranged on the two first movable plates 5 and are used to tightly press the two second movable plates 6 respectively. Install this device on the rescue vehicle, and then the rescue vehicle directly aligns this device with the trailer hitch of the vehicle to be rescued and reverses. The second movable plate 6 flips towards the inside of the annular cavity under the pushing action of the trailer hitch. After the trailer hitch completely enters the inside of the annular cavity, under the action of the tension spring 7, the second movable plate 6 rotates back to its original position, realizing that the first movable plate 5 and the second movable plate 6 completely surround the trailer hitch, and then the rescue vehicle and the vehicle to be rescued can be quickly connected.

[0046] In this embodiment, the opening and closing mechanism includes: a rotating seat 8, a connecting frame 9, a connecting rod 23 and a first electric cylinder 11. The rotating seat 8 is installed on the outer wall of each movable plate 5. The connecting frame 9 is located above the hinged seat 20, and both ends of the connecting frame 9 are inclined toward the direction of the pull rod 1. Both ends of the connecting frame 9 are provided with a strip slide 22. One end of the connecting rod 23 is rotatably connected to the rotating seat 8, and the other end of the connecting rod 23 is slidably arranged in the strip slide 22. The first electric cylinder 11 is installed on the pull rod 1, and the output end of the first electric cylinder 11 is fixedly connected to the center position of the connecting frame 9 through the pull block 10, and is performed by the first electric cylinder 11 arranged on the pull rod 1. The connecting frame 9 connected to the output end of the first electric cylinder 11 contracts, thereby driving the connecting frame 9 connected to the output end of the first electric cylinder 11 to move. During the movement, one end of the connecting rod 23 and the rotating seat 8 rotate relative to each other, and the other end of the connecting rod 23 slides between the strip slide groove 22 on the connecting frame 9, thereby opening the two movable plates 5 and releasing the connection between the rescue vehicle and the rescued vehicle. The inner walls of the movable plates 1 5 and 6 are both provided with force plates 21. Specifically, one end of the tension spring 7 is connected to the movable plate 2 6, and the other end of the tension spring 7 is connected to the force plate 21 located on the movable plate 1 5. By setting the force plate 21, the reliability of the use of the movable plates 1 5 and 2 6 can be enhanced.

[0047] In this embodiment, correspondingly, the first supporting mechanism includes: a supporting shaft 12, a fixing plate 13, a second electric cylinder 14 and a clamping head 15. The supporting shaft 12 is fixedly mounted on the outer side wall of the movable plate 15. The fixing plates 13 are mounted on both sides of the hinge seat 20. The second electric cylinder 14 is fixedly mounted on the fixing plate 13. The clamping head 15 is arranged at the output end of the second electric cylinder 14. The clamping head 15 is extended by the push of the second electric cylinder 14, so that the clamping head 15 is pushed onto the supporting shaft 12 arranged on the movable plate 15, so that the movable plate 15 is clamped when pulling the rescued vehicle to prevent it from falling off and ensuring the reliability of use. The second supporting mechanism includes: a supporting shaft 12, a fixing plate 13, a second electric cylinder 14 ... The support plate 16, the screw 17, the top head 19 and the top block 18, the support plate 16 is fixedly mounted on the outer wall of the movable plate 1 5 near the steering groove, the support plate 16 is provided with a screw hole, the screw 17 is threadedly connected in the screw hole, the top head 19 is rotatably mounted on the end of the screw 17, and the top block 18 is fixedly connected to the outer wall of the movable plate 2 6, and the screw 17 threadedly connected on the support plate 16 is rotated, thereby driving the top head 19 set on the screw 17 to support the top block 18 set on the movable plate 2 6, thereby tightening the movable plate 2 6 to prevent the movable plate 2 6 from rotating and disengaging from the trailer hook when the trailer generates pulling force, thereby ensuring reliability in use.

[0048] The connecting mechanism of this rescue vehicle, when it is necessary to rescue a vehicle, installs this device on the rescue vehicle. Then the rescue vehicle directly aligns this device with the trailer hitch of the vehicle to be rescued, and then reverses directly. The movable plate II 6 rotatably connected to the movable plate I 5 rotates towards the space between the two movable plates I 5 due to the extrusion of the trailer hitch on the vehicle to be rescued. When the trailer hitch completely enters the space between the two movable plates I 5, the tension spring 7 arranged between the force-bearing plate 21 and the movable plate II 6 pulls the movable plate II 6 back to its original position, and the rescue vehicle and the vehicle to be rescued can be quickly connected. After use, control the first electric cylinder 11 to contract, thereby driving the connecting frame 9 connected to the output end of the first electric cylinder 11 to move. During the movement, relative rotation occurs between one end of the connecting rod 23 and the rotating seat 8, and sliding occurs between the other end of the connecting rod 23 and the strip-shaped chute 22 on the connecting frame 9, so as to open the two movable plates I 5 and release the connection between the rescue vehicle and the vehicle to be rescued. Among them, the first electric cylinder 11 and the second electric cylinder 14 are both used by being connected to the power source on the vehicle body, and the screw rod in the second support mechanism can also be in the form of an electric cylinder for tightening, making the efficiency faster and more convenient.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connecting mechanism for a rescue vehicle, comprising a first pull rod (1), a second pull rod (2) and a connecting seat (4). Connecting holes are formed in both the first pull rod (1) and the second pull rod (2), and the two connecting holes are detachably and rotatably connected by a pin shaft (3). The connecting seat (4) is also rotatably connected to the second pull rod (2) by the pin shaft (3), characterized in that, Further included are: A hinge seat (20), which is fixedly installed at one end of the first pull rod (1) away from the pin shaft (3); A first movable plate (5), the first movable plate (5) is arc-shaped, and two of the first movable plates (5) are symmetrically and rotatably arranged in the hinge seat (20); A second movable plate (6), the second movable plate (6) is also arc-shaped, a steering groove is formed at the other end of the first movable plate (5), and the second movable plate (6) is rotatably installed in each steering groove; Wherein, the two second movable plates (6) and the two first movable plates (5) enclose an annular cavity; A tension spring (7), the tension spring (7) is arranged between the second movable plate (6) and the first movable plate (5); An opening and closing mechanism, which is arranged on the first pull rod (1) and is used to drive the two first movable plates (5) to open and close; A first supporting mechanism, there are two of the first supporting mechanisms, and the two first supporting mechanisms are respectively arranged on both sides of the first pull rod (1) and are used to tightly press the two first movable plates (5); A second supporting mechanism, there are two of the second supporting mechanisms, and the two second supporting mechanisms are respectively arranged on the two first movable plates (5) and are used to tightly press the two second movable plates (6) respectively.

2. The connecting mechanism of a rescue vehicle according to claim 1, characterized in that, The opening and closing mechanism includes: A rotating seat (8), and the rotating seat (8) is installed on the outer side wall of each first movable plate (5); A connecting frame (9), the connecting frame (9) is located above the hinge seat (20), and both ends of the connecting frame (9) incline towards the direction of the first pull rod (1), and strip-shaped sliding grooves (22) are arranged at both ends of the connecting frame (9); A connecting rod (23), one end of the connecting rod (23) is rotatably connected to the rotating seat (8), and the other end of the connecting rod (23) is slidably arranged in the strip-shaped sliding groove (22); A first electric cylinder (11), the first electric cylinder (11) is installed on the first pull rod (1), and the output end of the first electric cylinder (11) is fixedly connected to the central position of the connecting frame (9) through a pulling block (10).

3. The connecting mechanism of a rescue vehicle according to claim 2, characterized in that, The first supporting mechanism includes: A supporting shaft (12), the supporting shaft (12) is fixedly installed on the outer side wall of the first movable plate (5); A fixing plate (13), and the fixing plates (13) are installed on both sides of the hinge seat (20); A second electric cylinder (14), the second electric cylinder (14) is fixedly installed on the fixing plate (13); A pressing head (15), and the pressing head (15) is arranged at the output end of the second electric cylinder (14).

4. The connecting mechanism of a rescue vehicle according to claim 3, characterized in that, The second supporting mechanism includes: A supporting plate (16), the supporting plate (16) is fixedly installed at a position on the outer side wall of the first movable plate (5) close to the steering groove; A screw rod (17), a screw hole is formed in the supporting plate (16), and the screw rod (17) is threadedly connected in the screw hole; A top head (19), the top head (19) is rotatably installed at the end of the screw rod (17); A top block (18), and the top block (18) is fixedly connected to the outer side wall of the second movable plate (6).

5. The connecting mechanism of a rescue vehicle according to claim 4, characterized in that, Force-receiving plates (21) are provided on the inner walls of the first movable plate (5) and the second movable plate (6). Among them, one end of the tension spring (7) is connected to the second movable plate (6), and the other end of the tension spring (7) is connected to the force-receiving plate (21) located on the first movable plate (5).

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