CN115027377A - Fixing device for multifunctional emergency rescue vehicle machine - Google Patents

Abstract

The invention discloses a fixing device for machines of a multifunctional emergency rescue vehicle, relates to the field of engineering machinery, and is used for realizing stable positioning and transportation of the machines. The fixing device comprises a base, a support assembly, a first limiting mechanism, a second limiting mechanism and a rotary limiting mechanism. The support component is rotatably arranged on the base; the first limiting mechanism is arranged on the support assembly and limits the movement of the tool in a first direction; the second limiting mechanism is arranged on the support assembly and limits the movement of the machine tool in a second direction; the first direction and the second direction intersect. The rotation limiting mechanism has a locking state and an unlocking state; when the rotary limiting mechanism is in a locking state, the support assembly is fixedly connected with the base; when the rotation limiting mechanism is in an unlocking state, the support assembly and the base are rotatably connected. By the technical scheme, the multi-directional limiting of the machine tool can be realized when necessary, and the freedom degree of the machine tool in any direction can be given to meet the requirements of loading and displacement.

Description

Fixing device for multifunctional emergency rescue vehicle machine

Technical Field

The invention relates to the field of engineering machinery, in particular to a fixing device for machines and tools of a multifunctional emergency rescue vehicle.

Background

With the continuous development of the engineering machinery industry, the engineering machinery with a plurality of functional working machines is concerned. In order to solve the problems that the traditional rescue machinery is single in function of operation equipment and poor in interchangeability of operation tools, more and more multifunctional engineering vehicles and multifunctional operation arms which are provided with various operation machines are continuously emerged. The machine mainly comprises a hydraulic shear, a breaking hammer, a stone grabber and the like. Different implements have different functions.

Work vehicles are known which are equipped with a plurality of work implements which are placed on a support fixed to the chassis or which are transported exclusively by other vehicles. In the process of emergency rescue, the machine tool is connected with the multifunctional working arm through a quick-change device. However, since the implement bracket is fixedly connected with the chassis, the condition that the implement is extruded by the quick-change device exists in the process of connecting the implement and the multifunctional operating arm.

In addition, whether the placement of the machine tool is safe and reliable is very important to the safety of the machine tool and personnel. In emergency rescue occasions such as earthquakes, landslides and the like, vehicles bump when arriving to rescue places or performing rescue due to obstacles such as broken stones and pits on the road surface. If the machine tool is not stably placed, the machine tool can rotate, deviate or even tip over, the machine tool can deform or even break when the machine tool is serious, and the rescue task can be influenced; when the rescue of the trapped people is involved, the danger of secondary injury to the trapped people due to the damage of the machine structure can also occur.

In the related art, the following manner is adopted to achieve the fixation of the implement. The support columns are symmetrically welded on two sides of each machine tool respectively, and the machine tools are fixed by fixedly connecting the support columns and the fixing supports. The fixed support is fixed on the bearing machine body through the wedge-shaped block and the connecting mechanism. The carrying body is, for example, an emergency rescue vehicle or a special implement transportation device.

The inventor finds that at least the following problems exist in the prior art: in the transportation process of the machines and tools in the related art, the machines and tools rotate along with the bracket or the machines and the tool support move along the transverse direction, so that the machines and the upper vehicle parts collide or fall off, the machines and the tools are damaged, and personnel can be injured in severe cases. In addition, the machine tool is connected with the machine tool support through the bolt in a static state, but in the process of placing the machine tool on the machine tool support, due to the fact that an operator operates in an operation room, certain sight obstacles exist, certain position deviation can be generated when the machine tool is placed, the machine tool and the machine tool support cannot be correctly connected, the machine tool is not stably placed, the danger that the machine tool rolls over or even falls exists, and damage to the machine tool and personnel is easily caused.

Disclosure of Invention

The invention provides a fixing device for machines and tools of a multifunctional emergency rescue vehicle, which is used for realizing stable positioning and transportation of the machines and tools.

The embodiment of the invention provides a fixing device for machines and tools of a multifunctional emergency rescue vehicle, which comprises:

a base;

a support assembly rotatably mounted to the base;

a first limit mechanism mounted to the mount assembly, the first limit mechanism configured to limit movement of the implement in a first direction;

a second limit mechanism mounted to the mount assembly, the second limit mechanism configured to limit movement of the implement in a second direction; wherein the first direction and the second direction intersect; and

the rotation limiting mechanism is provided with a locking state and an unlocking state; when the rotation limiting mechanism is in the locking state, the support assembly is fixedly connected with the base; when the rotation limiting mechanism is in the unlocking state, the support assembly and the base are rotatably connected.

In some embodiments, the seat assembly comprises:

the first support is rotatably arranged on the base;

the second support is arranged on one side, far away from the base, of the first support; and

and the elastic component is clamped between the first support and the second support.

In some embodiments, the first mount comprises a first restraining cylinder and the second mount comprises a second restraining cylinder; the elastic component comprises a spring, one end of the spring is sleeved on the outer side of the first limiting cylinder, the other end of the spring is sleeved on the outer side of the second limiting cylinder, and the first limiting cylinder and the second limiting cylinder are arranged in a one-to-one correspondence mode.

In some embodiments, the swivel limiting mechanism comprises:

the first guide cylinder is arranged on the first support; the first guide cylinder comprises a first through hole, a first limiting groove and a second limiting groove, the first through hole penetrates through the axial direction of the first guide cylinder, and the first limiting groove and the second limiting groove are both arranged on the wall body of the first guide cylinder and are both communicated with the first through hole; the depth of the first limiting groove along the axial direction of the first guide cylinder is deeper than the depth of the second limiting groove along the axial direction of the first guide cylinder;

the second guide cylinder is arranged on the base; the second guide cylinder is provided with a second through hole coaxial with the first through hole;

the limiting pin shaft is inserted into the first through hole of the first guide cylinder; and

the limiting piece is fixedly connected with the limiting pin shaft and can be selectively positioned in one of the first limiting groove and the second limiting groove;

when the rotary limiting mechanism is in a locking state, the limiting piece is positioned at the bottom of the first limiting groove, the limiting pin shaft is positioned in the first guide cylinder and the second guide cylinder at the same time, and the first support cannot rotate relative to the base; when the rotation limiting mechanism is in an unlocking state, the limiting part is positioned at the bottom of the second limiting groove, the limiting pin shaft is positioned in the first guide cylinder and is far away from the second guide cylinder, and the first support is rotatable relative to the base.

In some embodiments, the first stop mechanism comprises a plurality of pairs, each pair of the first stop mechanisms being oppositely disposed in the first direction, each of the first stop mechanisms comprising:

the fixing seat is arranged on one side of the support assembly;

the screw rod is installed on the fixed seat through threaded connection; and

and the wedge block is arranged at one end of the screw rod.

In some embodiments, the second stop mechanism comprises:

the rotating bracket is rotatably arranged on the support assembly and is positioned at one end of the support assembly; and

and the fixing block is fixed on the support assembly and is positioned at the other end of the support assembly.

In some embodiments, the second mount comprises:

a substrate connected to the first support; and

the ear plate assembly is provided with a plurality of groups of mounting holes;

the rotary support and the ear plate are rotatably connected through one group of the mounting holes, and are detachably and fixedly connected through the other group of the mounting holes.

In some embodiments, the fixation device further comprises:

the connecting bracket comprises a locking plate, a rotating tongue and a bolt; the locking plate is fixed on the rotating bracket and provided with an inner concave part; the rotating tongue is configured to be arc-shaped, one end of the rotating tongue is rotatably connected with the locking plate, and the bolt is installed on the locking plate to lock the other end of the rotating tongue and the locking plate; the rotating tongue and the locking plate are matched together to form a locking groove.

The fixing device provided by the technical scheme is provided with the first limiting mechanism, the second limiting mechanism and the rotation limiting mechanism, and the first limiting mechanism and the second limiting mechanism are limited in the first direction and the second direction respectively. The rotation limiting mechanism realizes limiting in the rotation direction; and gyration stop gear can also realize the unblock in the direction of gyration, just so makes fixing device have multiple state on the direction of gyration: the locking mechanism comprises an unlocking state and a locking state, so that the requirements of the machine tool under different conditions are met. By the aid of the technical scheme, multi-directional limiting of the machine tool is achieved, reliability of machine tool transportation is effectively guaranteed, the possibility of damage to the machine tool and personnel caused by sudden rotation or movement of the machine tool in vehicle transportation is reduced, and the degree of freedom of the machine tool in any direction can be given when necessary so as to meet requirements of loading and displacement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

FIG. 1 is a schematic view of a fastening device according to an embodiment of the present invention in a use state;

fig. 2 is a schematic perspective view of a fixing device according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a bearing of the fixing device according to an embodiment of the present invention;

FIG. 4 is a perspective view of a first seat of a seat assembly of a fixing device according to an embodiment of the present invention;

FIG. 5 is a perspective view of a second seat of the seat assembly of the fastening device according to an embodiment of the present invention;

FIG. 6 is an enlarged, fragmentary view of a resilient component of a seat assembly of a fastening device according to an embodiment of the present invention;

FIG. 7 is a perspective view of a connecting bracket of a fixing device according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a first limiting mechanism of the fixing device according to the embodiment of the present invention;

FIG. 9 is a schematic perspective view of another fixing device provided in an embodiment of the present invention

Fig. 10 is an exploded view of a rotation limiting mechanism of the fixing device according to the embodiment of the present invention;

fig. 11 is a schematic view of a rotating bracket of a fixing device provided by an embodiment of the invention in three extreme positions.

Reference numerals:

1. a base; 2. a seat assembly; 3. a first limit mechanism; 4. a second limiting mechanism; 5. a rotation limiting mechanism; 6. connecting a bracket; 7. a machine tool; 8. a bracket; 9. a bearing;

21. a first support; 22. a second support; 23. an elastic component;

211. a first limiting cylinder; 212. a flat plate; 213. an annular vertical plate; 214. bending the vertical plate; 221. a second limiting cylinder; 222. a substrate; 223. an ear plate assembly; 224. mounting holes; 225. rotating the pin shaft; 226. an O-shaped clamping pin shaft;

31. a fixed seat; 32. a screw; 33. a wedge block;

41; rotating the bracket; 42. a fixed block;

51. a first guide cylinder; 52. a second guide cylinder; 53. a limiting pin shaft; 54. a limiting member;

511. a first through hole; 512. a first limit groove; 513. a second limit groove;

521. a second through hole;

61. a locking plate; 62. rotating the tongue; 63. a bolt;

611. an inner concave portion.

Detailed Description

The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 11.

The machines 7 of the multifunctional emergency rescue vehicle comprise a rescue platform, hydraulic shears, a breaking hammer, a stone grabber and the like, and the machines 7 with different structures have different functions. Hereinafter, the rescue platform is taken as an example, and how the fixing device can fix the rescue platform is described in detail.

Referring to fig. 1, the rescue platform is substantially rectangular, and the rescue platform is placed on the fixing device, and the fixing device can provide limitation to the length direction L, the width direction H, the height direction W and the rotation direction R for the machine 7 at most, so that the rescue platform is stably placed on the fixing device. For convenience of description, a coordinate system is established in fig. 1, and three axes of the coordinate system correspond to the longitudinal direction L, the width direction H, and the height direction W of the implement 7.

The technical solution of the embodiment of the present invention is described in detail below.

Referring to fig. 1 and 2, a fixing device for a multifunctional emergency rescue vehicle implement 7 provided by an embodiment of the invention comprises a base 1, a support assembly 2, a first limiting mechanism 3, a second limiting mechanism 4 and a rotation limiting mechanism 5.

Referring to fig. 2, the base 1 is the base of the whole fixing device, and the base 1 is fixed with other components, such as the upper fixing of a transfer vehicle. The base 1 is a flat plate, and a plurality of reinforcing vertical plates are erected on the flat plate to increase the strength of the base 1.

With continued reference to fig. 2, the pedestal assembly 2 is rotatably mounted to the base 1. Referring specifically to fig. 3, the seat assembly 2 is rotatably coupled to the base 1 by a bearing 9. The bearing 9 includes a bearing inner ring 91 and a bearing outer ring 92, which are rotatably connected, and the inner ring bearing 9 performs a revolving motion in the outer ring bearing 9. The bearing outer ring 92 is fixed with the base 1, and is fixedly connected with the bearing 9 and the like. The bearing inner ring 91 and the support assembly 2 are fixed together, and are fixedly connected through bolts and the like. By means of the bearing 9, a pivoting of the bearing assembly 2 relative to the base 1 is achieved. The axis of rotation of which is vertical, i.e. the height direction H.

Referring to fig. 4 and 5, in some embodiments, mount assembly 2 includes a first mount 21, a second mount 22, and a resilient assembly 23.

Referring to fig. 4, the first mount 21 is rotatably mounted to the base 1. In some embodiments, first support 21 includes a plate 212, an annular riser 213 mounted to plate 212, and a bent riser 214 mounted to plate 212. The bent-over riser 214 includes four pieces, which surround the annular riser 213. The first support 21 has such a structure, and has a relatively high structural strength and a high bearing capacity.

Referring to fig. 4 and 5, the second support 22 is disposed on a side of the first support 21 away from the base 1. The elastic member 23 is interposed between the first seat 21 and the second seat 22.

With continued reference to fig. 4 and 5, in some embodiments, the first mount 21 includes a first retaining cylinder 211 and the second mount 22 includes a second retaining cylinder 221. Referring to fig. 6, the elastic assembly 23 includes a spring, one end of the spring is sleeved outside the first limiting cylinder 211, the other end of the spring is sleeved outside the second limiting cylinder 221, and the first limiting cylinder 211 and the second limiting cylinder 221 are arranged in a one-to-one correspondence manner.

In some embodiments, 4 compression springs are uniformly distributed between the first support 21 and the second support 22, so that the second support 22 and the implement 7 can move in the vertical direction, and the fixture of the implement 7 is fixedly connected with a vehicle, so that the implement 7 is not deformed and damaged by the extrusion of the arm support; meanwhile, the spring has better damping effect, so that the implement 7 is placed more stably. In the process of connecting the quick-change device with the machine tool 7, the quick-change device has certain extrusion force on the machine tool 7, and if a support of the machine tool 7 is fixedly connected with the frame, the extrusion damage of the machine tool 7 can be caused, and the performance is influenced; the provision of a compression spring ensures that when the quick-change device is connected to the implement 7, the spring is compressed by the pressure of the quick-change device on the implement 7, so that the pressure on the implement 7 is eliminated.

The position where the first limiting cylinder 211 and the second limiting cylinder 221 abut against is the limit position of spring compression. Through the cooperation of the first limiting cylinder 211 and the second limiting cylinder 221, the limit of the compression amount of the spring is controlled, the spring is prevented from being crushed, and the fixing device is prevented from shaking up and down to be too large. Moreover, the two ends of the spring are limited by the first limiting cylinder 211 and the second limiting cylinder 221, so that the spring can only deform within a set range.

The implementation of each limiting mechanism is described below.

Referring to fig. 2, 8-10, the first limit mechanism 3 is mounted to the mount assembly 2, the first limit mechanism 3 being configured to limit movement of the implement 7 in a first direction. The first direction is, for example, the longitudinal direction L.

Referring to fig. 8, in some embodiments, the first limiting mechanism 3 comprises a plurality of pairs, each pair of first limiting mechanisms 3 being oppositely disposed. Each first limiting mechanism 3 includes a fixing seat 31, a screw 32, and a wedge 33. The fixed seat 31 is arranged at one side of the support assembly 2; the screw 32 is installed on the fixed seat 31 through threaded connection; a wedge 33 is mounted at one end of the screw 32.

The wedge 33 of the first stop mechanism 3 is intended to cooperate with another wedge 33 fixed to the implement 7. The mating surface between two wedge blocks 33 is a bevel. By turning the screw 32, the wedge 33 is translated in the length direction L of the fixture, which changes the position of the wedge 33 in the length direction L of the fixture. The implement 7 is clamped in the length direction L by the movement of the respective wedge blocks 33 of the two first limiting mechanisms 3 which are arranged opposite to each other. The position of the implement 7 in the length direction of the fixing device can also be adjusted by controlling the rotation length of the respective screw rods 32 of the two first limiting mechanisms 3 which are oppositely arranged. The screw 32 is rotated reversely, so that the wedge 33 of the first limiting mechanism 3 is far away from the implement 7. In addition, the wedge-shaped surface of the wedge-shaped block 33 is vertically inclined, and the position of the machine tool 7 in the height direction H can be finely adjusted by adjusting the matching area of the wedge-shaped block 33 of the first limiting mechanism 3 and the wedge-shaped block 33 on the machine tool 7, so that the machine tool 7 is placed more stably and is not suitable for being inclined. Therefore, through the process, the machine tool 7 can move and be fixed in the left-right direction, the machine tool 7 can be placed more conveniently and more stably, the placing stability and reliability of the machine tool 7 are improved, and the working efficiency is improved.

Referring to fig. 2, 8-10, the second limit mechanism 4 is mounted to the carriage assembly 2, and the first limit mechanism 3 is configured to limit movement of the implement 7 in a second direction. Wherein the first direction and the second direction intersect.

Referring to fig. 2, 8 to 10, the second limiting mechanism 4 includes a rotating bracket 41 and a fixing block 42. The rotating bracket 41 is rotatably mounted to the seat assembly 2 and is located at one end of the seat assembly 2. The fixing block 42 is fixed to the seat assembly 2 and located at the other end of the seat assembly 2.

In some embodiments, the second limiting mechanism 4 includes a rotating bracket 41 and a fixed block 42. The rotating bracket 41 is rotatably mounted to the seat assembly 2 and is located at one end of the seat assembly 2. The fixing block 42 is fixed to the seat assembly 2 and is located at the other end of the seat assembly 2.

In some embodiments, the second mount 22 includes a base plate 222 and an ear plate assembly 223. The ear plate assembly 223 includes a first ear plate and a second ear plate arranged in parallel. The first and second ear plates are each provided with a plurality of mounting holes 224. As shown in fig. 2, the first and second ear plates are each provided with four mounting holes 224. Of the four mounting holes 224, the mounting hole 224 at the middle, i.e., the mounting hole 224 at the a position, is provided with a rotating pin 225, and the rotating pin 225 is always in a connected state. The other three sets of mounting holes 224, namely mounting holes 224 at position B, C, D, each set corresponding to a different position of second support 22 and rotating bracket 41. In these three sets of mounting holes 224, O-ring bayonet shafts 226 are detachably mounted. The switching of the rotation state between the second support 22 and the rotary bracket 41 is realized by inserting and extracting the O-shaped bayonet pins 226. When only the middle mounting hole 224 is provided with the rotating pin and the other three sets of mounting holes 224 are not provided with the O-shaped clamping pins 226, the rotating bracket 41 can freely rotate around the axis of the rotating pin relative to the second support 22. When rotated into position, the bayonet O-shaft 226 is inserted into the selected set of mounting holes 224, which provides a secure attachment of the swivel support 41 relative to the second support 22. The angle between the rotating bracket 41 and the second support 22 is made different by inserting the O-shaped latch pin 226 into different mounting holes 224.

When the O-shaped latch pin 226 is removed, the rotating bracket 41 can rotate around the central axis of the rotating pin 225 to three positions at 0 °, 90 ° and 270 ° with respect to the second holder 22.

When placing the implement 7 in the fixing device, in which case it is necessary to use the rotating bracket 41, the rotating bracket 41 is perpendicular with respect to the second seat 22, with an angle of approximately 90 °. At this time, the vehicle on which the fixing device is mounted may be in a transportation state or a stationary state.

When the implement 7 needs to be taken down from the fixing device, the connection between the implement 7 and the rotating bracket 41 is firstly disconnected; the swivel support 41 is then swiveled out through 180 °, in which case there are no parts in the upper region of the entire fastening device which hinder the removal of the implement 7, which makes it possible to remove the implement 7 from any convenient direction. In this state, the angle of the rotating bracket 41 with respect to the second mount 22 is approximately 270 °.

When the implement 7 does not need to be placed in the fixing device, it is not necessary to use the rotating bracket 41, and the rotating bracket 41 is attached to the second support 22 at an angle of approximately 0 °. At this point, the implement 7 is in the working state, and the implement 7 is attached to the vehicle without being placed on the fixture. Under this state, can fold fixing device, the fixing device occupation of land space after folding is very little, is convenient for deposit and transport.

Referring to fig. 2, 7 and 9, in some embodiments, the rotating bracket 41 includes, for example, a plurality of cross bars and a plurality of vertical bars, which are fixed together to form the rotating bracket 41. The fixing device further comprises a connecting bracket 6. The connecting bracket 6 is fixed to the cross bar of the rotating bracket 41. The connecting brackets 6 may be provided to a plurality of cross bars having different heights of the rotating bracket 41. The connecting bracket 6 includes a locking plate 61, a rotation tongue 62, and a latch 63. The locking plate 61 is fixed to the rotating bracket 41, and the locking plate 61 has an inner recess 611. The rotation tongue 62 is configured to be arc-shaped, one end of the rotation tongue 62 is rotatably coupled with the locking plate 61, and the latch 63 is mounted to the locking plate 61 to lock the other end of the rotation tongue 62 with the locking plate 61. The tongue 62 and the locking plate 61 cooperate to form a locking slot.

Referring to fig. 7, the locking plate 61 is substantially U-shaped with both ends serving as connection ends. One end of the rotation tongue 62 is rotatably connected to a protruding portion on one side of the locking plate 61, and a portion of the locking plate 61 between the two ends is recessed. The other end of the rotation tongue 62 and the protrusion on the other side of the locking plate 61 can be connected or disconnected. In fig. 7, the broken lines indicate the open state of the turn tongue 62, and the solid lines indicate the locked state of the turn tongue 62, in which the concave area between the locking plate 61 and the turn tongue 62 forms a locking groove. When the other end of the rotation tongue 62 and the other side of the locking plate 61 are in a coupled state, a bolt 63 is inserted through the respective through holes of the locking plate 61 and the rotation tongue 62 to couple the locking plate 61 and the rotation tongue 62 together.

By changing the state of the rotating tongue 62, the connection and disconnection of the implement 7 and the connecting bracket 6 are realized. The connecting bracket 6 plays a role of limiting the machine tool 7 in the height direction H, and the connection and disconnection between the machine tool 7 and the connecting bracket 6 are very easy to switch, so that the machine tool 7 is positioned in the height direction H on one hand, and the transportation of the machine tool 7 is more stable and reliable; on the other hand, when the implement 7 is disassembled, the connection between the implement 7 and the connecting bracket 6 can be easily disconnected, so that the implement 7 is convenient to disassemble and assemble.

In other embodiments, implement 7 is bolted to bracket 8, and positioning of implement 7 is accomplished indirectly by locking bracket 8 with a locking slot. The bracket 8 is a substantially elongated intermediate connecting member. The bracket 8 is arranged perpendicular to the base 1. So designed, on the one hand make to implement 7 of any realization, all need not change the structure of implement 7 by a wide margin, only need process the hole that can be connected with bracket 8 can. On the other hand, the bracket 8 adopts a determined structure, so that the positioning of the implement 7 can be conveniently realized through the locking groove for the implement 7 of any structure. On the other hand, the bracket 8 can be provided with a matching structure connected with the quick-change device, and the quick connection and replacement of the implement 7 and the vehicle can be limited for implements 7 with various structures.

Referring to fig. 9 and 10, the rotation restricting mechanism 5 has a locked state and an unlocked state; when the rotary limiting mechanism 5 is in a locking state, the support assembly 2 is fixedly connected with the base 1; when the rotation limiting mechanism 5 is in an unlocking state, the support assembly 2 and the base 1 are rotatably connected. The rotation limiting mechanism 5 is, for example, mechanically or electrically controlled to switch between two states.

Among the above-mentioned technical scheme, gyration stop gear 5 does not directly die support subassembly 2 and base 1 lock, but has two kinds of optional states, when needs die support subassembly 2 and base 1 lock, gyration stop gear 5 restriction support and base 1's relative state. When the support assembly 2 is required to rotate relative to the base 1, the rotation limiting mechanism 5 is in an unlocking state, at the moment, the rotation limiting mechanism 5 cannot play a limiting role, and the support assembly 2 and the base 1 can rotate freely.

By adopting the arrangement mode, on one hand, the machine tool 7 can be positioned in a rotating way in the transportation process and cannot rotate randomly, so that the machine tool 7 is more reliable in transportation; on the other hand, when the implement 7 is taken out and placed, the implement 7 can be positioned at any angle convenient to operate, and cannot be obstructed by sight lines when the implement is operated in a control room, so that the quick connection between the operating arm and the implement 7 can be realized, and the replacement efficiency of the implement 7 is improved.

In some embodiments, the rotation limiting mechanism 5 includes a first guide cylinder 51, a second guide cylinder 52, a limiting pin 53, and a limiting member 54.

The first guide cylinder 51 is mounted on the first support 21; the first guide cylinder 51 comprises a first through hole 511, a first limiting groove 512 and a second limiting groove 513, the first through hole 511 penetrates through the axial direction of the first guide cylinder 51, and the first limiting groove 512 and the second limiting groove 513 are both arranged on the wall body of the first guide cylinder 51 and are both communicated with the first through hole 511; the depth of the first stopper groove 512 in the axial direction of the first guide cylinder 51 is deeper than the depth of the second stopper groove 513 in the axial direction of the first guide cylinder 51. The second guide cylinder 52 is mounted on the base 1; the second guide cylinder 52 has a second through hole 521 coaxial with the first through hole 511. The limit pin 53 is inserted into the first through hole 511 of the first guide cylinder 51. The limiting member 54 is fixedly connected to the limiting pin 53, and the limiting member 54 is selectively located in one of the first limiting groove 512 and the second limiting groove 513.

When the rotation limiting mechanism 5 is in a locked state, the limiting member 54 is located at the bottom of the first limiting groove 512, the limiting pin 53 is simultaneously located in the first guide cylinder 51 and the second guide cylinder 52, and the first support 21 is not rotatable relative to the base 1. When the rotation limiting mechanism 5 is in the unlocked state, the limiting member 54 is located at the bottom of the second limiting groove 513, and the limiting pin 53 is only located in the first guiding cylinder 51, because the first support 21 and the base 1 are rotatably connected, the first support 21 can rotate relative to the base 1 at this time.

Above-mentioned technical scheme realizes the rotation and the locking of machines 7 in the horizontal direction through gyration stop gear 5, reduces or even avoids machines 7 in the transportation because inertia is rotatory suddenly, collides with other parts of getting on the bus and causes machines 7 to warp the possibility of damaging even.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 considered as limiting the scope of the present invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. The utility model provides a fixing device for multi-functional rescue car machines which characterized in that includes:

a base (1);

a pedestal assembly (2) rotatably mounted to the base (1);

a first limit mechanism (3) mounted to the carriage assembly (2), the first limit mechanism (3) configured to limit movement of an implement (7) in a first direction;

a second limit mechanism (4) mounted to the carriage assembly (2), the second limit mechanism (4) configured to limit movement of the implement (7) in a second direction; wherein the first direction and the second direction intersect; and

a rotation limiting mechanism (5) having a locking state and an unlocking state; when the rotation limiting mechanism (5) is in the locking state, the support assembly (2) is fixedly connected with the base (1); when the rotation limiting mechanism (5) is in the unlocking state, the support assembly (2) and the base (1) are rotatably connected.

2. A fixture as claimed in claim 1, characterised in that said seat assembly (2) comprises:

a first support (21) rotatably mounted to the base (1);

a second support (22) arranged on the side of the first support (21) away from the base (1); and

and the elastic component (23) is clamped between the first support (21) and the second support (22).

3. A fixture as claimed in claim 2, characterized in that said first seat (21) comprises a first restraining cylinder (211) and said second seat (22) comprises a second restraining cylinder (221); the elastic component (23) comprises a spring, one end of the spring is sleeved on the outer side of the first limiting cylinder (211), the other end of the spring is sleeved on the outer side of the second limiting cylinder (221), and the first limiting cylinder (211) and the second limiting cylinder (221) are arranged in a one-to-one correspondence mode.

4. A fixture according to claim 2, wherein the swivel limit mechanism (5) comprises:

a first guide cylinder (51) attached to the first support (21); the first guide cylinder (51) comprises a first through hole (511), a first limiting groove (512) and a second limiting groove (513), the first through hole (511) penetrates through the axial direction of the first guide cylinder (51), and the first limiting groove (512) and the second limiting groove (513) are both arranged on the wall body of the first guide cylinder (51) and are both communicated with the first through hole (511); the depth of the first limit groove (512) along the axial direction of the first guide cylinder (51) is deeper than the depth of the second limit groove (513) along the axial direction of the first guide cylinder (51);

a second guide cylinder (52) attached to the base (1); the second guide cylinder (52) has a second through hole (521) coaxial with the first through hole (511);

the limiting pin shaft (53) is inserted into the first through hole (511) of the first guide cylinder (51); and

the limiting piece (54) is fixedly connected with the limiting pin shaft (53), and the limiting piece (54) can be selectively positioned in one of the first limiting groove (512) and the second limiting groove (513);

when the rotation limiting mechanism (5) is in a locking state, the limiting piece (54) is positioned at the bottom of the first limiting groove (512), the limiting pin shaft (53) is positioned in the first guide cylinder (51) and the second guide cylinder (52) at the same time, and the first support (21) is not rotatable relative to the base (1); when the rotation limiting mechanism (5) is in an unlocking state, the limiting piece (54) is located at the bottom of the second limiting groove (513), the limiting pin shaft (53) is located in the first guide cylinder (51) and far away from the second guide cylinder (52), and the first support (21) can rotate relative to the base (1).

5. A fixture according to claim 1, wherein said first stop mechanism (3) comprises a plurality of pairs, each pair of said first stop mechanisms (3) being oppositely disposed in said first direction, each said first stop mechanism (3) comprising:

the fixed seat (31) is arranged on one side of the support assembly (2);

the screw rod (32) is installed on the fixed seat (31) through threaded connection; and

and the wedge block (33) is arranged at one end of the screw rod (32).

6. A fixture according to claim 2, characterised in that the second stop mechanism (4) comprises:

the rotating bracket (41) is rotatably arranged on the support assembly (2) and is positioned at one end of the support assembly (2); and

and the fixing block (42) is fixed on the support component (2) and is positioned at the other end of the support component (2).

7. A fixture as claimed in claim 6, characterised in that said second seat (22) comprises:

a base plate (222) connected to the first holder (21); and

an ear plate assembly (223) provided with a plurality of sets of mounting holes (224);

the rotating bracket (41) and the ear plate are rotatably connected through one group of the mounting holes (224), and the other group of the mounting holes (224) is detachably and fixedly connected.

8. The fixture according to claim 6, further comprising:

the connecting bracket (6) comprises a locking plate (61), a rotating tongue (62) and a bolt (63); the locking plate (61) is fixed to the rotating bracket (41), and the locking plate (61) has an inner concave portion (611); the rotary tongue (62) is configured to be arc-shaped, one end of the rotary tongue (62) is rotatably connected with the locking plate (61), and the bolt (63) is installed on the locking plate (61) to lock the other end of the rotary tongue (62) and the locking plate (61); the rotating tongue (62) and the locking plate (61) are matched together to form a locking groove.

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