CN110774842B - Dragging and rigid dragging combined vehicle-mounted rescue device - Google Patents

Abstract

The invention relates to the field of emergency rescue vehicles, in particular to a supporting-pulling and rigid-pulling combined vehicle-mounted rescue device which comprises a rotary joint, a retracting cylinder, a supporting-pulling joint and a locking seat, wherein the supporting-pulling joint comprises a head end mounting joint, a middle joint, an inner shaft, a swing arm, a joint arm, a tail end telescopic arm and an ear plate. The support traction joint comprises a head end mounting joint, a middle joint, an inner shaft, a swing arm, a joint arm, a tail end telescopic arm and an ear plate, wherein the inner shaft is fixedly connected with one end of the middle joint, the inner shaft is connected in the mounting joint in an inserting mode and rotates, a positioning pin shaft is arranged at one end of the inner shaft, the positioning pin shaft prevents the inner shaft from being separated from the head end mounting joint, and the head end mounting joint and the middle joint are fixed through a locking seat.

Description

Dragging and rigid dragging combined vehicle-mounted rescue device

Technical Field

The invention relates to the field of emergency repair vehicles, in particular to a vehicle-mounted rescue device combining supporting traction and rigid traction.

Background

In military wars, battlefield rescue and first-aid repair equipment is the key for ensuring that damaged or failed equipment is rescued at the first time and rapidly recovering maneuvering capability and operational capability. Practice shows that the rescue and emergency repair equipment has important significance for maintaining the continuous fighting capacity of the troops and effectively carrying out mission tasks. Similarly, in civil equipment, when a vehicle fails and a driver cannot get out of the vehicle only by self conditions, the vehicle needs to be repaired by rescue and first-aid repair equipment.

When the fault vehicle cannot normally run, the obstacle clearing and rescue work needs to be carried out through rescue and first-aid repair equipment. According to different damage degrees of the fault vehicle, two rescue modes of towing and just towing are often required in common actual working conditions. And (3) supporting and pulling, namely lifting and pulling, namely, after the fault vehicle is lifted by using a supporting and pulling device, obstacle clearing and rescue are implemented under the traction of rescue and emergency repair equipment. Rigid traction, namely rigid traction, is to directly connect a fault vehicle by using a rigid traction device and implement rigid traction under the traction of emergency repair equipment, thereby realizing obstacle clearing and rescue on the fault vehicle.

In the existing research on rescue and emergency repair equipment, although the use scenes of two modes, namely towing and rigid towing, are very similar, the functions are not integrated, and the lightweight and motorized development of rescue equipment is severely limited. The existing rescue equipment has limited rescue space and cannot adapt to the current rescue situations under complex road conditions and different working conditions in the modes of supporting and pulling and rigid pulling. Meanwhile, for large heavy-duty vehicles, the rescue device is often bulky, lacks of folding and unfolding optimization design, and causes difficulty in transportation. These not only directly affect the rescue performance of tow-holding and tow-just, but also limit the optimization of other rescue functions in the rescue equipment.

Disclosure of Invention

The invention provides a dragging and rigid dragging combined type vehicle-mounted rescue device, which has the beneficial effects that the function integration of supporting and rigid dragging in vehicle-mounted rescue equipment can be realized, meanwhile, the design is optimized to adapt to the traction of fault vehicles under different working conditions, the light weight design can be ensured, the motorized rescue can be realized, and the high efficiency and reliability in the rescue can be really realized.

The invention relates to the field of emergency repair vehicles, in particular to a supporting-pulling and rigid-pulling combined vehicle-mounted rescue device which comprises a rotary joint, a retracting cylinder, a supporting-pulling joint and a locking seat.

The supporting and pulling joint comprises a head end mounting joint, a middle joint, an inner shaft, swing arms, joint arms, a tail end telescopic arm and an ear plate, wherein one end of the middle joint is fixedly connected with the inner shaft, the inner shaft is inserted and rotatably connected into the head end mounting joint, one end of the inner shaft is provided with a positioning pin shaft, the positioning pin shaft prevents the inner shaft from separating from the head end mounting joint, the head end mounting joint and the middle joint are fixed through a locking seat, the other end of the middle joint is hinged to one end of each of the two swing arms, the other ends of the two swing arms are respectively hinged to one end of the joint arms, the other ends of the two joint arms are both in sliding connection with one end of the tail end telescopic arm, and the other; the lower part of the rotary joint is connected with the head end mounting joint through a pin shaft, one end of the retracting cylinder is hinged to the upper part of the rotary joint, and the other end of the retracting cylinder is hinged to the head end mounting joint; two swing arms and the middle section can be fixedly connected, adjacent swing arms and the section arms can be fixedly connected, and adjacent section arms and the tail end telescopic arm can be fixedly connected.

Preferably, the locking seat includes socket, locking swivel mount, locking axle and handle bar, and the upside fixedly connected with socket of head end installation festival, the upside fixedly connected with locking swivel mount of middle festival is provided with the door-shaped groove on the locking swivel mount, and it has the handle bar to peg graft on the locking swivel mount, and the handle bar passes the door-shaped groove, and the locking axle is inserted on the socket.

Preferably, the towing and rigid towing combined type vehicle-mounted rescue device further comprises a supporting connecting rod and a fastening wrench, the upper end of the supporting connecting rod is hinged to the upper portion of the rotary joint, the lower end of the supporting connecting rod is hinged to the head end mounting joint, the supporting connecting rod is formed by connecting an inner cylinder to an outer cylinder in a sliding mode, and the fastening wrench is connected to the outer cylinder through threads.

Preferably, the two swing arms are fixedly connected with the middle section, the adjacent swing arms are fixedly connected with the joint arms, and the adjacent joint arms are fixedly connected with the tail end telescopic arm through pins.

Preferably, the towing and rigid towing combined type vehicle-mounted rescue device further comprises a rotary lug, a lifting joint and a basic joint, the rotary lug is arranged at the upper end and the lower end of the rotary joint, the rotary joint is hinged to the lifting joint through the two rotary lugs, and the lifting joint is arranged on the basic joint.

Preferably, the dragging and rigid dragging combined type vehicle-mounted rescue device further comprises a rotary joint, a lifting cylinder and a lifting cylinder ear plate, wherein the lifting joint is connected to the basic joint in a sliding mode, the lifting cylinder ear plate is arranged on the basic joint, the lower end of the lifting cylinder is connected to the lifting cylinder ear plate in a hinged mode, the lifting cylinder penetrates through the basic joint, the upper portion of the lifting joint is connected with the rotary joint in a rotating mode, and the upper end of the lifting cylinder is connected to the rotary joint in a hinged mode.

Preferably, the towing and rigid towing combined type vehicle-mounted rescue device further comprises in-place stoppers, and the in-place stoppers are arranged on two sides of the bottom of the basic section.

Preferably, the towing and rigid towing combined type vehicle-mounted rescue device further comprises a vehicle body mounting hole and pitching cylinders, the upper ends of the two pitching cylinders are hinged to the basic section, and a vehicle body mounting hole is formed in one end of the basic section.

Preferably, the towing and rigid towing combined type vehicle-mounted rescue device further comprises a rotation locking device, an inserting shaft seat I and an inserting shaft seat II, wherein the inserting shaft seat I is arranged on the basic section, a plurality of inserting shaft seats II are arranged on the rotary section from top to bottom, one end of the rotation locking device is fixed on the inserting shaft seat I through the inserting shaft, the other end of the rotation locking device is fixed on one of the inserting shaft seats II through the inserting shaft, the rotation locking device is a rod body with adjustable length, and the length of the rotation locking device can be fixed.

Preferably, the towing and rigid towing combined type vehicle-mounted rescue device further comprises a towing and towing locking part and an inserting shaft seat III, the rotary joint and the head end mounting joint are both provided with the inserting shaft seat III, the towing and towing locking part is a rod body with a fixed length, and two ends of the towing and towing locking part are respectively fixed on the two inserting shaft seats III through inserting shafts.

The towing and rigid towing combined vehicle-mounted rescue device has the beneficial effects that:

1. and (4) integrating functions. The invention can not only complete the task of supporting and pulling rescue, but also design a rigid pulling interface according to the actual rescue, thereby realizing rigid pulling. The function integration can provide great design advantages for the design of the whole vehicle, and is convenient for the arrangement and light-weight design of other parts.

2. The adjusting range is large. All the components of the rescue device are connected in series, so that the rescue device can furthest ensure the maximum rescue motion space of the rescue device, and is convenient for flexibly selecting a rescue scheme in the rescue process.

3. The structure is compact. The invention makes full use of the reasonable structural design of each part, has larger folding-unfolding ratio, and can ensure the rationality of functions and the structural compactness of road transportation.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of an overall structure of a combined towing and rigid towing vehicle-mounted rescue apparatus according to the present invention;

FIG. 2 is a schematic structural view of a towing joint;

FIG. 3 is a schematic structural view of an inner shaft and a locating pin;

FIG. 4 is a first schematic structural view of the locking seat;

FIG. 5 is a second schematic structural view of the locking seat;

FIG. 6 is a schematic structural view of a basic section;

FIG. 7 is a schematic view of a connecting structure of the middle section and two swing arms;

FIG. 8 is a schematic structural view of the support link;

FIG. 9 is a schematic structural diagram of a towing operation state according to the present invention;

FIG. 11 is a schematic structural view of the just-pulled working state of the present invention;

fig. 10 is a schematic structural view of the fully collapsed shipping state of the present invention.

In the figure: a rotary joint 1; 1-1 of a rotary lug; a retraction cylinder 2; a supporting and pulling section 3; a joint 3-1 is arranged at the head end; 3-2 parts of middle section; inner shaft 3-2-1; positioning a pin shaft 3-2-2; 3-3 of a swing arm; 3-4 parts of a knuckle arm; 3-5 parts of a tail end telescopic arm; 3-6 parts of ear plates; a locking seat 4; a socket 4-1; 4-2 parts of a locking shaft rotation seat; 4-3 of a locking shaft; 4-4 of a handle rod; a support link 5; 5-1 of a fastening wrench; a lifting joint 6; a lift cylinder 7; a base section 8; lifting a cylinder ear plate 8-1; a position stop 8-2; a vehicle body mounting hole 8-3; a pitch cylinder 9; a rotation lock 10; a plug-in shaft seat I10-1; a plug shaft seat II 10-2; a supporting, pulling and locking device 11; and a shaft inserting seat III 11-1.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The first embodiment is as follows:

the embodiment is described below by combining with figures 1-10, the invention relates to the field of rescue breakdown trucks, and in particular relates to a supporting and pulling and rigid pulling combined type vehicle-mounted rescue device which comprises a rotary joint 1, a retraction cylinder 2, a supporting and pulling joint 3 and a locking seat 4, wherein the supporting and pulling joint 3 comprises a head end mounting joint 3-1, a middle joint 3-2, an inner shaft 3-2-1, a swing arm 3-3, a joint arm 3-4, a tail end telescopic arm 3-5 and an ear plate 3-6.

The traction and supporting joint 3 comprises a head end mounting joint 3-1, a middle joint 3-2, an inner shaft 3-2-1, a swing arm 3-3, a joint arm 3-4, a tail end telescopic arm 3-5 and an ear plate 3-6, one end of the middle joint 3-2 is fixedly connected with the inner shaft 3-2-1, the inner shaft 3-2-1 is inserted and rotatably connected in the head end mounting joint 3-1, one end of the inner shaft 3-2-1 is provided with a positioning pin shaft 3-2-2, the positioning pin shaft 3-2-2 prevents the inner shaft 3-2-1 from being separated from the head end mounting joint 3-1, the head end mounting joint 3-1 and the middle joint 3-2 are fixed through a locking seat 4, the other end of the middle joint 3-2 is hinged with one end of the two swing arms 3-3, the other ends of the two swing arms 3-3 are respectively hinged with one ends of the knuckle arms 3-4, the other ends of the two knuckle arms 3-4 are respectively connected with one ends of the tail end telescopic arms 3-5 in a sliding mode, and the other ends of the two tail end telescopic arms 3-5 are respectively fixedly connected with the lug plates 3-6; the lower part of the rotary joint 1 is connected with the head end mounting joint 3-1 through a pin shaft, one end of the retraction cylinder 2 is hinged to the upper part of the rotary joint 1, and the other end of the retraction cylinder 2 is hinged to the head end mounting joint 3-1; the two swing arms 3-3 and the middle section 3-2 can be fixedly connected, the adjacent swing arms 3-3 and the knuckle arms 3-4 can be fixedly connected, and the adjacent knuckle arms 3-4 and the tail end telescopic arms 3-5 can be fixedly connected. A retracting cylinder 2 is arranged between the rotary joint 1 and the head end mounting joint 3-1, the retracting cylinder 2 can stretch, and the retracting cylinder 2 can drive the supporting and pulling joint 3 to rotate at the lower end of the rotary joint 1 when stretching, so that the angle of the supporting and pulling joint 3 can be adjusted according to rescue needs.

The first end mounting section 3-1 is mainly used for providing mounting position space for the first end mounting section 3, and the middle section 3-2 is used as an extension part of the first end mounting section 3-1. The swing arms 3-3 are symmetrically arranged at two sides and can rotate around the tail ends of the middle sections 3-2. The middle section 3-2 and the swing arm 3-3 are matched through a positioning hole and a positioning pin to realize the positioning of the minimum rotation angle and the maximum rotation angle. The tail ends of the swing arms 3-3 at the two sides are provided with the knuckle arms 3-4, the knuckle arms 3-4 can rotate around the swing arms 3-3, and the knuckle arms 3-4 and the swing arms 3-3 can realize angle positioning through positioning holes and positioning pins. And a tail end telescopic arm 3-5 is arranged in each knuckle arm 3-4, the tail end telescopic arm 3-5 can freely stretch along the knuckle arm 3-4, and the stretching length is fixed through a positioning hole and a positioning pin. An ear plate 3-6 is arranged on each end telescopic arm 3-5, and the ear plates 3-6 are used for positioning a fault vehicle during rescue operation.

The second embodiment is as follows:

the embodiment is described below with reference to fig. 1-10, where the locking seat 4 includes a socket 4-1, a locking shaft rotating seat 4-2, a locking shaft 4-3 and a hand lever 4-4, the upper side of the head end mounting section 3-1 is fixedly connected with the socket 4-1, the upper side of the middle section 3-2 is fixedly connected with the locking shaft rotating seat 4-2, the locking shaft rotating seat 4-2 is provided with a door-shaped groove, the hand lever 4-4 is inserted into the locking shaft rotating seat 4-2, the hand lever 4-4 penetrates through the door-shaped groove, and the locking shaft 4-3 can be inserted into the socket 4-1. A locking seat 4 is arranged between the head end mounting section 3-1 and the middle section 3-2, a locking shaft 4-3 can slide and rotate on the locking shaft rotating seat 4-2, a hand lever 4-4 can slide on the door-shaped groove, and whether the locking shaft 4-3 is inserted into the socket 4-1 or not can be controlled through the hand lever 4-4. The locking seat 4 is used for fixing the head end mounting section 3-1 and the middle section 3-2 together, in the rescue process, the locking shaft 4-3 is separated from the socket 4-1 to separate the head end mounting section 3-1 from the middle section 3-2, and at the moment, load can be borne through the inner shaft 3-2-1 during traction, so that the structural damage or damage of the traction supporting section 3 caused by uneven load or overlarge load is avoided.

The third concrete implementation mode:

the embodiment is described below with reference to fig. 1-10, the towing and rigid towing combined vehicle-mounted rescue device further includes a support link 5 and a fastening wrench 5-1, the upper end of the support link 5 is hinged to the upper portion of the rotary joint 1, the lower end of the support link 5 is hinged to the head end mounting joint 3-1, the support link 5 is formed by slidably connecting an inner cylinder to an outer cylinder, and the fastening wrench 5-1 is connected to the outer cylinder through a thread. A supporting connecting rod 5 is arranged between the rotary joint 1 and the supporting and pulling joint 3, when the supporting and pulling joint 3 is retracted to a certain angle by the retracting and releasing cylinder 2, the supporting connecting rod 5 replaces the retracting and releasing cylinder 2 to bear load by adjusting the length of the supporting connecting rod 5, the retracting and releasing cylinder 2 is released to be stressed, the retracting and releasing cylinder 2 is prevented from being stressed and fatigued, and the rigid connection also enables the whole rescue device to be more stable and reliable. The length of the support link 5 is fixed by turning the tightening wrench 5-1.

The fourth concrete implementation mode:

the embodiment is described below with reference to fig. 1 to 10, and the two swing arms 3-3 and the middle link 3-2, the adjacent swing arm 3-3 and the knuckle arm 3-4, and the adjacent knuckle arm 3-4 and the end telescopic arm 3-5 are all fixedly connected by pins.

The fifth concrete implementation mode:

the following describes the embodiment with reference to fig. 1 to 10, where the towing and rigid towing combined vehicle-mounted rescue apparatus further includes a rotation bump 1-1, a lifting joint 6 and a basic joint 8, the rotation bump 1-1 is disposed at both the upper and lower ends of the rotation joint 1, the rotation joint 1 is hinged to the lifting joint 6 through the two rotation bumps 1-1, and the lifting joint 6 is disposed on the basic joint 8. The basic joint 8 can transmit movement, bear load and provide a certain installation space for other parts.

The sixth specific implementation mode:

the following describes the present embodiment with reference to fig. 1 to 10, where the towing and rigid towing combined vehicle-mounted rescue apparatus further includes a rotary joint, a lifting cylinder 7, and a lifting cylinder ear plate 8-1, the lifting joint 6 is slidably connected to the basic joint 8, the basic joint 8 is provided with the lifting cylinder ear plate 8-1, the lower end of the lifting cylinder 7 is hinged to the lifting cylinder ear plate 8-1, the lifting cylinder 7 passes through the basic joint 8, the upper portion of the lifting joint 6 is rotatably connected to the rotary joint, and the upper end of the lifting cylinder 7 is hinged to the rotary joint. The movement space of the rescue device is increased through the height change of the lifting cylinder 7 in the vertical direction, and the rescue range is enlarged. The lifting joint 6 mainly serves for load bearing and for transmitting movements. The rotary joint 1 can rotate at a certain angle by taking the lifting joint 6 as an axis, so that the rescue equipment can carry out rescue work by adjusting the rotary joint 6 as far as possible without adjusting the position of a rescue vehicle when facing a complex rescue environment, particularly under the condition that a rescue object and the rescue vehicle have a certain deflection angle. In order to ensure that the load-dividing and releasing cylinders 2 can be symmetrically arranged on both sides, the angle of the traction supporting joint 3 relative to the rotary joint 1 can be adjusted from 0 to 90 degrees through the telescopic motion of the releasing and releasing cylinders 2.

The seventh embodiment:

the embodiment is described below with reference to fig. 1 to 10, the towing and rigid towing combined vehicle-mounted rescue device further comprises a position stop 8-2, and the position stop 8-2 is arranged on two sides of the bottom of the basic section 8. In-place stop blocks 8-2 are designed on two sides of the bottom of the basic section to prevent collision and damage to other equipment of the rescue vehicle.

The specific implementation mode is eight:

the following describes the embodiment with reference to fig. 1 to 10, the towing and rigid towing combined vehicle-mounted rescue apparatus further includes vehicle body mounting holes 8-3 and pitching cylinders 9, the upper ends of the two pitching cylinders 9 are both hinged to the basic section 8, and one end of the basic section 8 is provided with a vehicle body mounting hole 8-3. The automobile body is connected to every single move jar 9 one end, and the other end is connected to basic festival for adjust this rescue device whole every single move angle, realize the primary control of rescue scope, basic festival 8 is connected to the other end of every single move jar 9, and every single move jar 9 is used for adjusting this rescue device whole every single move angle, realizes the primary control of rescue scope. A vehicle body mounting hole is designed at the head end of the basic section 8 and used for realizing the connection of the whole vehicle-mounted rescue device and a vehicle body, the vehicle body is used as a base, and therefore the whole vehicle-mounted rescue device is a four-bar mechanism, and the position pitching adjustment can be realized under the action of the pitching cylinder 9.

The specific implementation method nine:

the following describes the embodiment with reference to fig. 1 to 10, where the towing and rigid towing combined vehicle-mounted rescue apparatus further includes a rotation lock 10, a bearing seat I10-1 and a bearing seat II10-2, the basic joint 8 is provided with a bearing seat I10-1, the rotary joint 1 is provided with a plurality of bearing seats II10-2 from top to bottom, one end of the rotation lock 10 is fixed on the bearing seat I10-1 through the bearing seat, the other end of the rotation lock 10 is fixed on one of the bearing seats II10-2 through the bearing seat, the rotation lock 10 is a rod body with adjustable length, and the length of the rotation lock 10 can be fixed. The rotary lock 10 is used for locking the basic joint 8 and the rotary joint 1 together, and the right end of the rotary lock 10 can be connected to the plug shaft seats II10-2 with different heights, so that the relative positions of the rotary joint 1 and the basic joint 8 are adjusted, and the whole body of the invention is convenient to transport flexibly. The locking device is used for realizing the integral locking of the supporting and pulling joint in the transportation state. The swing lock 10 is a rod with adjustable length, such as a hydraulic cylinder in the prior art.

The detailed implementation mode is ten:

the following describes the embodiment with reference to fig. 1 to 10, where the towing and rigid towing combined vehicle-mounted rescue apparatus further includes a towing lock 11 and an inserting shaft seat III11-1, the rotary joint 1 and the head end mounting joint 3-1 are both provided with an inserting shaft seat III11-1, the towing lock 11 is a rod body with a fixed length, and two ends of the towing lock 11 are respectively fixed on two inserting shaft seats III11-1 through inserting shafts. When the supporting and pulling lock 11 is used for transportation, the rotary joint 1 and the supporting and pulling joint 3 can be locked together, so that the rotary joint 1 and the supporting and pulling joint 3 are in folded states, and the space is saved.

The working process of the device of the invention is specifically described below with reference to the rescue conditions of the rescue and emergency repair equipment.

Carrying and pulling working conditions:

when the front wheel of the fault vehicle cannot move and the traction needs to be supported by the vehicle-mounted rescue device on the rescue vehicle, the rescue device is arranged at the bottom of the fault vehicle, the front axle of the fault vehicle is lifted, and the rear wheel of the fault vehicle is driven to move forward under the traction of the rescue vehicle, so that the traction supporting target is achieved.

The specific working process is as follows:

when the rescue vehicle reaches a specified position, firstly, the vehicle-mounted rescue device is preliminarily adjusted through the pitching cylinder 9; then, the stretching-out of the retracting cylinder 2 adjusts the supporting and pulling section 3 to be in a horizontal working state, and adjusts the height of the supporting connecting rod 5 and fixes the supporting connecting rod; then, the swing arm 3-3, the knuckle arm 3-4 and the tail end telescopic arm 3-5 are respectively adjusted to the length position and the angle position required by rescue by manually adjusting each part of the supporting and pulling knuckle 3, and corresponding locking is carried out; at this time, the two swing arms 3-3 are rotated to be close to each other, the two knuckle arms 3-4 are rotated to be close to each other, and the two end telescopic arms 3-5 are respectively extended from the two knuckle arms 3-4, as shown in fig. 9. The two swing arms 3-3 and the middle section 3-2, the adjacent swing arms 3-3 and the joint arms 3-4, and the adjacent joint arms 3-4 and the tail end telescopic arms 3-5 are fixedly connected through pins. The rescue vehicle is driven in a reverse direction, so that the traction supporting joint 3 extends to the bottom of the fault vehicle and reaches the front axle position, and is fixed with the front axle of the fault vehicle; and finally, lifting the rescue device to a certain height under the action of the lifting cylinder 7, so as to lift the front part of the fault vehicle and enable the front axle of the fault vehicle to be lifted to a proper height. Thus, the pulling preparation work is completed. Under the traction of the rescue vehicle, the on-board rescue device can complete the traction rescue of the fault vehicle. When the vehicle with the fault is supported and pulled to a safe position, the vehicle-mounted rescue device needs to be removed, and the process is the reverse process of the supporting and pulling process.

The working condition of just pulling:

when the front wheel of the fault vehicle can move and needs to be pulled rigidly through a vehicle-mounted rescue device on the rescue vehicle, the rescue device is rigidly connected with the fault vehicle, and the fault vehicle is driven to move forwards integrally by rigid traction under the traction of the rescue vehicle, so that the aim of rigid traction is fulfilled.

The specific working process is as follows:

when the rescue vehicle reaches a specified position, firstly, the vehicle-mounted rescue device is preliminarily adjusted through the pitching cylinder 9; then, the stretching-out of the retracting cylinder 2 adjusts the supporting and pulling section 3 to be in a horizontal working state, and adjusts the height of the supporting connecting rod 5 and fixes the supporting connecting rod; then, the tail end telescopic arm 3-5 in the supporting and pulling section 3 is adjusted manually to a position required for rescue, and then corresponding locking is carried out, and other parts in the supporting and pulling section 3 do not need to be operated; at this time, the two swing arms 3-3 rotate to be respectively attached to the two sides of the middle section 3-2, the two section arms 3-4 rotate to be respectively attached to the outer sides of the two swing arms 3-3, and only the tail end telescopic arm 3-5 is required to be extended to a position required for rescue, as shown in fig. 10. The two swing arms 3-3 and the middle section 3-2, the adjacent swing arms 3-3 and the joint arms 3-4, and the adjacent joint arms 3-4 and the tail end telescopic arms 3-5 are fixedly connected through pins. The ear plates 3-6 at two sides in the supporting and pulling joint 3 are fixed on the corresponding interfaces of the fault vehicle to realize rigid connection and fixation of two points, and finally the rescue device is adjusted to a proper height under the action of the lifting cylinder 7. At this point, the just pulling preparation work is completed. Under the traction of the rescue vehicle, the vehicle-mounted rescue device can complete the traction rescue of the fault vehicle. When the vehicle to be trouble passes through and is just dragged to the safe position, the vehicle-mounted rescue device needs to be removed, and the process is the reverse process of the just dragging process.

Transportation working conditions are as follows:

in the normal running process of the rescue vehicle, the vehicle-mounted rescue device needs to be folded for convenient transportation. The concrete working process of the transportation working condition is as follows:

in general terms, after the rescue task is finished, the lifting cylinder 7 is firstly put down to a proper position; then, the connection between the rescue device and the fault vehicle is released, and all parts of the supporting and pulling section 3 are sequentially folded, locked and fixed; then, under the retraction action of the retraction cylinder 2, the traction support joint 3 is retracted to a position which is horizontal to the rotary joint 1; finally, the pitching cylinder 9 is adjusted to a proper position, so that road transportation is facilitated. Finally, the rescue device is completely contracted to a transportation state as shown in fig. 11. The middle section 3-2 is folded by leaning on the rotary section 1, the rotary section 1 and the middle section 3-2 are fixed by a supporting and pulling lock 11, the two swing arms 3-3 rotate to be respectively jointed with the two sides of the middle section 3-2, the two section arms 3-4 rotate to be respectively jointed with the outer sides of the two swing arms 3-3, and the two tail end telescopic arms 3-5 are completely retracted into the two section arms 3-4. The two swing arms 3-3 and the middle section 3-2, the adjacent swing arms 3-3 and the joint arms 3-4, and the adjacent joint arms 3-4 and the tail end telescopic arms 3-5 are fixedly connected through pins.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims (10)

1. The utility model provides a drag and draw on-vehicle rescue device of combination formula with just, includes rotary joint (1), receive and releases jar (2), holds in the palm and draws festival (3) and locking seat (4), its characterized in that: the traction supporting joint (3) comprises a head end mounting joint (3-1), a middle joint (3-2), an inner shaft (3-2-1), a swing arm (3-3), a joint arm (3-4), a tail end telescopic arm (3-5) and an ear plate (3-6), one end of the middle joint (3-2) is fixedly connected with the inner shaft (3-2-1), the inner shaft (3-2-1) is inserted and rotatably connected in the head end mounting joint (3-1), one end of the inner shaft (3-2-1) is provided with a positioning pin shaft (3-2-2), the positioning pin shaft (3-2-2) prevents the inner shaft (3-2-1) from being separated from the head end mounting joint (3-1), the head end mounting joint (3-1) and the middle joint (3-2) are fixed through a locking seat (4), the other end of the middle section (3-2) is hinged with one end of two swing arms (3-3), the other ends of the two swing arms (3-3) are respectively hinged with one end of a knuckle arm (3-4), the other ends of the two knuckle arms (3-4) are both connected with one end of a tail end telescopic arm (3-5) in a sliding mode, and the other ends of the two tail end telescopic arms (3-5) are both fixedly connected with lug plates (3-6); the lower part of the rotary joint (1) is connected with the head end mounting joint (3-1) through a pin shaft, one end of the retracting cylinder (2) is hinged to the upper part of the rotary joint (1), and the other end of the retracting cylinder (2) is hinged to the head end mounting joint (3-1); the two swing arms (3-3) can be fixedly connected with the middle section (3-2), the adjacent swing arms (3-3) can be fixedly connected with the joint arms (3-4), and the adjacent joint arms (3-4) can be fixedly connected with the tail end telescopic arms (3-5).

2. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 1, characterized in that: the locking seat (4) comprises a socket (4-1), a locking shaft rotating seat (4-2), a locking shaft (4-3) and a hand lever (4-4), the upper side of the head end mounting section (3-1) is fixedly connected with the socket (4-1), the upper side of the middle section (3-2) is fixedly connected with the locking shaft rotating seat (4-2), a door-shaped groove is formed in the locking shaft rotating seat (4-2), the hand lever (4-4) is inserted into the locking shaft rotating seat (4-2), the hand lever (4-4) penetrates through the door-shaped groove, and the locking shaft (4-3) is inserted into the socket (4-1).

3. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 1 or 2, characterized in that: the bearing and fastening device is characterized by further comprising a bearing connecting rod (5) and a fastening wrench (5-1), wherein the upper end of the bearing connecting rod (5) is hinged to the upper portion of the rotary joint (1), the lower end of the bearing connecting rod (5) is hinged to the head end mounting joint (3-1), the bearing connecting rod (5) is formed by connecting an inner cylinder to an outer cylinder in a sliding mode, and the outer cylinder is connected with the fastening wrench (5-1) through threads.

4. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 3, characterized in that: the two swing arms (3-3) are fixedly connected with the middle section (3-2), the adjacent swing arms (3-3) are fixedly connected with the joint arms (3-4), and the adjacent joint arms (3-4) are fixedly connected with the tail end telescopic arms (3-5) through pins.

5. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 4, characterized in that: the lifting mechanism is characterized by further comprising a rotary lug (1-1), a lifting joint (6) and a basic joint (8), wherein the rotary lug (1-1) is arranged at the upper end and the lower end of the rotary joint (1), the rotary joint (1) is hinged to the lifting joint (6) through the two rotary lugs (1-1), and the lifting joint (6) is arranged on the basic joint (8).

6. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 5, characterized in that: the lifting cylinder is characterized by further comprising a rotary joint, a lifting cylinder (7) and lifting cylinder ear plates (8-1), wherein the lifting joint (6) is connected to the basic joint (8) in a sliding mode, the lifting cylinder ear plates (8-1) are arranged on the basic joint (8), the lower end of the lifting cylinder (7) is connected to the lifting cylinder ear plates (8-1) in a hinged mode, the lifting cylinder (7) penetrates through the basic joint (8), the upper portion of the lifting joint (6) is connected with the rotary joint in a rotating mode, and the upper end of the lifting cylinder (7) is connected to the rotary joint in a hinged mode.

7. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 6, characterized in that: the base joint also comprises in-place stop blocks (8-2), and the in-place stop blocks (8-2) are arranged on two sides of the bottom of the basic joint (8).

8. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 7, characterized in that: the novel pitching vehicle is characterized by further comprising vehicle body mounting holes (8-3) and pitching cylinders (9), the upper ends of the two pitching cylinders (9) are hinged to the basic section (8), and the vehicle body mounting holes (8-3) are formed in one end of the basic section (8).

9. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 8, characterized in that: the rotary locking device is characterized by further comprising a rotary locking device (10), an inserting shaft seat I (10-1) and an inserting shaft seat II (10-2), wherein an inserting shaft seat I (10-1) is arranged on the basic joint (8), a plurality of inserting shaft seats II (10-2) are arranged on the rotary joint (1) from top to bottom, one end of the rotary locking device (10) is fixed on the inserting shaft seat I (10-1) through the inserting shaft, the other end of the rotary locking device (10) is fixed on one of the inserting shaft seats II (10-2) through the inserting shaft, the rotary locking device (10) is a rod body with adjustable length, and the length of the rotary locking device (10) can be fixed.

10. The combined towing and rigid towing vehicle-mounted rescue apparatus according to claim 9, characterized in that: the novel telescopic rod type telescopic rod further comprises a supporting and pulling lock (11) and an inserting shaft seat III (11-1), the inserting shaft seat III (11-1) is arranged on the rotary joint (1) and the head end mounting joint (3-1), the supporting and pulling lock (11) is a rod body with a fixed length, and two ends of the supporting and pulling lock (11) are respectively fixed on the two inserting shaft seats III (11-1) through inserting shafts.

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