CN215516007U

CN215516007U - Water hose laying vehicle

Info

Publication number: CN215516007U
Application number: CN202023343340.4U
Authority: CN
Inventors: 王钧盛; 曹俊; 韩雨晨; 李存靖; 朱华平; 武子洵; 刘军
Original assignee: Hubei 3611 Special Equipment Co ltd
Current assignee: Hubei 3611 Special Equipment Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-01-14
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a water hose laying vehicle which comprises a vehicle body, stacking equipment, winding equipment and transverse moving equipment, wherein the stacking equipment is arranged on the vehicle body; the vehicle body comprises a vehicle head, a chassis and a carriage, the vehicle head is arranged at the front end of the chassis, the carriage is arranged on the chassis, and the upper end of the carriage is provided with an opening; the transverse moving equipment is arranged above the carriage and comprises two transverse moving components which are respectively and correspondingly arranged at the front end and the rear end of the carriage; the stacking equipment spans between the two transverse moving supports and is used for stacking the water belt in the carriage along the front-back direction; the winding equipment is arranged at the front end of the stacking equipment and used for withdrawing the water belt and conveying the water belt to the stacking equipment; the accuracy of the water hose stacking position is ensured, the water hoses inside the carriage are stacked more regularly, and the subsequent water hoses are laid and used conveniently.

Description

Water hose laying vehicle

Technical Field

The utility model relates to the technical field of fire fighting equipment, in particular to a water hose laying vehicle.

Background

Under the conditions of building fire or forest fire and the like, the fire has large scale, high fire extinguishing difficulty and long fire extinguishing time, thereby causing huge economic loss; under the above circumstances, since the water capacity of the ordinary fire engine is limited, it is impossible to perform a long-time and high-intensity fire extinguishing operation, and it is almost impossible to cope with a fire occurring in an oil-gas field, a warehouse, or the like. Therefore, if a large fire disaster needs to be effectively controlled, a plurality of fire trucks and a large-flow water cannon need to be adopted for continuous fire extinguishing operation. Therefore, it is necessary to directly perform a remote continuous water supply operation by using a large-diameter water supply pipeline through a water source.

The long-distance water supply is required to be quickly laid between a water source and a fire scene through a large-diameter water hose, the water hose laying vehicle is used for quickly laying the water hose, and the water hose is stored in a carriage after being used. Because the water hose has long laying distance and is heavy, the water hose usually needs to be recovered by machinery, and the high-intensity labor of personnel is avoided.

Hosepipe among the prior art lays the car and when accomodating the pile up the hosepipe along carriage width direction, laying apparatus's sideslip generally adopts deflector roll and pulley to drive, but the pulley can not pinpoint when the motion, and then leads to the hosepipe to pile up the position not accurate enough, leads to the hosepipe to pile up neatly, and then influences the follow-up use of laying down of hosepipe.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a water hose laying vehicle to solve the technical problem of the prior art that water hoses of the water hose laying vehicle are not orderly stacked.

The utility model provides a water hose laying vehicle which comprises a vehicle body, stacking equipment, winding equipment and transverse moving equipment, wherein the stacking equipment is arranged on the vehicle body;

the vehicle body comprises a vehicle head, a chassis and a carriage, the vehicle head is arranged at the front end of the chassis, the carriage is arranged on the chassis, and the upper end of the carriage is provided with an opening;

the transverse moving device is arranged above the carriage and comprises two transverse moving components, the two transverse moving components are respectively and correspondingly arranged at the front end and the rear end of the carriage, and each transverse moving component comprises a moving assembly chain, a transverse moving support, a traveling chain wheel and a chain wheel driving piece; the transverse moving support is movably arranged at the upper end of the carriage, the moving assembly chain is arranged along the width direction of the carriage, the walking chain wheel is rotatably arranged on the transverse moving support, the chain wheel driving piece is arranged on the transverse moving support and is in driving connection with the walking chain wheel, and the walking chain wheel is in matched transmission with the moving assembly chain so as to drive the transverse moving support to move on the moving assembly chain;

the stacking equipment spans between the two transverse moving supports and is used for stacking the water belt in the carriage along the front-back direction;

the winding equipment is arranged at the front end of the stacking equipment and used for withdrawing the water hose and conveying the water hose to the stacking equipment.

Preferably, the traverse support is provided with a channel along the length direction of the moving assembly chain, the walking chain wheels are arranged in the channel, two sides of each walking chain wheel are respectively and correspondingly rotatably provided with idle chain wheels, the lower end part of the moving assembly chain is wound on the walking chain wheels, and the two idle chain wheels are matched and connected with the upper end of the moving assembly chain.

Preferably, the stacking equipment comprises a stacking support, a clamping device, a feeding device and a discharging device; the stacking support comprises a base fixedly arranged between the two transverse moving supports in a spanning mode and a cross beam arranged on the base, and the cross beam is arranged in the front-back direction; the clamping device comprises a clamping frame, a fixed clamping assembly, a movable clamping assembly and a limiting assembly, wherein the clamping frame is movably arranged on the cross beam and can slide along the front and back directions; the front end of the clamping frame is provided with a water belt feeding port, the fixed clamping assembly is fixedly arranged on the clamping frame and is positioned at the upper end of the water belt feeding port, the rear end of the movable clamping assembly is rotatably arranged on the clamping frame, the front end of the movable clamping assembly is used for clamping a water belt entering from the water belt feeding port in a matching manner with the fixed clamping assembly, the front end of the movable clamping assembly is positioned below the fixed clamping assembly, and the limiting assembly is movably arranged on the clamping frame and is used for limiting the rotation of the movable clamping assembly; the feeding device is arranged at the front end of the base and used for driving the front end of the movable clamping assembly to move upwards so as to clamp the water belt; the blanking device is arranged at the rear end of the base and used for driving the limiting assembly to move so as to release the clamping of the fixed clamping assembly and the movable clamping assembly.

Preferably, the base is fixedly connected to the front end of the base, the feeding device comprises a movable frame, an auxiliary rotating member and a sliding driving member, the movable frame is slidably mounted on the base in the front-back direction, a water belt feeding plate is mounted on the upper side of the rear end of the movable frame, the sliding driving member is used for driving the movable frame to slide in the front-back direction, a driving inclined plane is arranged at the lower end of the movable frame, the front end of the driving inclined plane is higher than the rear end of the driving inclined plane, the water belt feeding plate is arranged corresponding to the water belt feeding port, the auxiliary rotating member is rotatably mounted on the base, the front end of the auxiliary rotating member is provided with an abutting part abutting against the driving inclined plane, the rear end of the auxiliary rotating member is provided with an upper slope surface corresponding to the front end of the movable clamping assembly, and the front end of the upper slope surface is higher than the rear end of the upper slope surface, the rotating shaft of the auxiliary rotating piece is positioned between the abutting part and the upper slope surface; the fixed clamping assembly comprises a first clamping plate, and the first clamping plate is fixedly arranged on the clamping frame; the movable clamping assembly comprises a clamping arm and a second clamping plate, the rear end of the clamping arm is rotatably arranged on the clamping frame, a step part is formed at the rear end of the clamping arm, and the second clamping plate is fixedly arranged at the front end of the clamping arm and is positioned below the first clamping plate; spacing subassembly includes swing arm and elastic drive spare, the swing arm rotatable install in the centre gripping frame, the rear end of swing arm have with the spacing portion of step portion complex, spacing portion is used for the restriction the arm lock rotates, but the front end wobbling of swing arm set up in the top of arm lock, elastic drive spare is used for the drive the swing arm rotates, so that spacing portion is to being close to the step portion motion, unloader includes unloading frame and unloading push pedal, unloading frame fixed mounting in put things in good order the support, unloading push pedal fixed mounting in the front end of unloading frame, the rear end of centre gripping frame has a unloading opening, the unloading push pedal with the front end of swing arm corresponds the setting, in order to drive spacing portion is to keeping away from the step portion motion.

Preferably, the winding device comprises a gravity sensing transmission device, a lifting device, a guide device and a rotary lifting driving piece; the gravity sensing transmission device comprises a machine head frame, the rear end of the machine head frame is rotatably arranged on the base, at least part of the front end of the gravity sensing transmission device exceeds the base, the rotary lifting driving piece is connected between the base and the gravity sensing transmission device to push the front end of the gravity sensing transmission device to rotate and ascend or descend, and the guide device is arranged at the front end of the gravity sensing transmission device through the lifting device.

Preferably, the guide means comprises a guide frame and a joint transition assembly; the guide frame comprises two oppositely arranged support plates, and a water belt channel is formed between the two support plates; the joint transition assembly is arranged at the front part of the water hose channel and comprises a guide wheel set and a guide conveying belt, the guide wheel set comprises a triangular roller frame and three guide rollers which are horizontally arranged, the triangular roller frame is rotatably arranged between the two supporting plates, the three guide rollers are rotatably arranged on the triangular roller frame, and the three guide rollers are respectively arranged at the three vertex angles of the triangular roller frame in a one-to-one correspondence manner; the guide conveyor belt is installed at the rear end of the guide wheel set in a transmission mode, and the upper end face of the guide conveyor belt is used for conveying and is arranged in parallel with the guide roller.

Preferably, elevating gear includes bracing piece subassembly and lift actuating mechanism, the bracing piece subassembly includes first bracing piece and second bracing piece, first bracing piece with the one end of second bracing piece articulate in the guide frame, first bracing piece with the other end of second bracing piece articulate in the aircraft nose frame, first bracing piece with the length of second bracing piece equals and parallel arrangement, first bracing piece is located the front portion of second bracing piece, lift actuating mechanism is used for the drive first bracing piece or the second bracing piece rotates, in order to drive the guide frame goes up and down.

Preferably, the gravity sensing transmission device further comprises a driving pulley assembly, a conveying assembly and a belt pressing assembly; the driving belt wheel assembly comprises a front driving belt wheel and a rear driving belt wheel, and the front driving belt wheel and the rear driving belt wheel are respectively and rotatably arranged at the front end and the rear end of the handpiece frame; the conveying assembly comprises a first conveying belt assembly, the first conveying belt assembly is installed between the front driving belt wheel and the rear driving belt wheel, the first conveying belt assembly comprises a first conveying belt and a first gravity trigger mechanism, the upper side part of the first conveying belt is a first conveying part, the first gravity trigger mechanism is installed below the first conveying part, and the first gravity trigger mechanism is triggered by the gravity of an object at the upper end of the first conveying part;

the belt pressing assembly comprises a front belt pressing mechanism and a rear belt pressing mechanism, and the front belt pressing mechanism is movably arranged at the front end of the machine head frame; the rear driving belt wheel is movably arranged at the rear end of the machine head frame, the belt pressing assembly has a first working state and a second working state, when the belt pressing assembly is in the first working state, the front belt pressing mechanism is separated from the front driving belt wheel, and the rear belt pressing mechanism is matched with the rear driving belt wheel to tightly press a water belt at the rear end of the machine head frame; when the belt pressing assembly is in a second working state, the rear belt pressing mechanism is separated from the rear driving belt wheel, and the front belt pressing mechanism and the front driving belt wheel are matched to tightly press a water belt positioned at the front end of the machine head frame; the press belt assembly is configured to be switched from a first working state to a second working state when the first gravity trigger mechanism is triggered.

Preferably, the first gravity trigger mechanism comprises a first sensor, a first trigger piece and a reset piece, one end of the first trigger piece is rotatably installed in the handpiece frame, the other end of the first trigger piece is abutted to at least part of the first conveying part, the first sensor is installed at a preset position below the first conveying part, and when the first trigger piece moves to a preset trigger position of the first sensor along with the first conveying part, the first gravity trigger mechanism is triggered; the reset piece is used for driving the first trigger piece to be far away from the first sensor.

Preferably, the base comprises a base body and a rotating upright post fixedly connected to the upper end surface of the base body, the rotating upright post is positioned at the rear side of the base body, and the machine head frame is hinged to the upper end of the rotating upright post; two ends of the rotary lifting driving piece are respectively hinged to the base body and the machine head frame, and one end of the rotary lifting driving piece, which is connected with the machine head frame, is higher than the other end of the rotary lifting driving piece.

According to the water hose laying vehicle provided by the utility model, the transverse moving device adopts a mode that the transverse moving support is matched with the moving assembly chain and the walking chain wheel, and the chain wheel is directly driven by the chain wheel driving part to rotate, so that the transverse moving support moves along the moving assembly chain, the position stability of the transverse moving support is greatly improved due to the stability of meshing movement of the chain wheel and the chain, and in addition, the accuracy of the water hose laying position is further ensured because the stacking device and the winding device are arranged at the upper end of the transverse moving support, so that the water hoses in a carriage are stacked more regularly, and the water hoses can be laid and used conveniently in the follow-up process.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.

Drawings

Fig. 1 is a schematic perspective view of a water hose laying vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the water hose laying vehicle according to the embodiment of the utility model after the vehicle body is hidden;

FIG. 3 is a schematic structural diagram of a stacking apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a gravity sensing transmission apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the structure of the mounting position of the traverse device in the embodiment of the present invention;

FIG. 6 is a schematic view of the internal structure of a traversing apparatus according to an embodiment of the utility model;

FIG. 7 is a schematic structural diagram of a clamping device according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view of the area X in FIG. 4;

FIG. 9 is a schematic perspective view of a guiding device according to an embodiment of the present invention;

FIG. 10 is a schematic view of a connection structure of the lifting device according to the embodiment of the present invention;

FIG. 11 is a front view of a guide assembly according to an embodiment of the present invention;

FIG. 12 is a schematic view of the structure of a guide wheel set in the practice of the present invention;

FIG. 13 is a schematic view of the installation position of the rotary lift actuator according to the embodiment of the present invention;

FIG. 14 is a schematic perspective view of a gravity sensing transmission device according to an embodiment of the present invention;

FIG. 15 is a schematic perspective view of a front pinch roller set according to an embodiment of the present invention;

FIG. 16 is a schematic view of a portion of a rear belt press according to an embodiment of the present invention;

FIG. 17 is a schematic structural diagram of the Y region in FIG. 4;

fig. 18 is a schematic structural diagram of a feeding device in an embodiment of the present invention.

In the figure: 100. a vehicle body; 200. stacking equipment; 300. winding equipment; 400. a traversing device;

110. a headstock; 120. a chassis; 130. a carriage; 210. stacking the brackets; 220. a clamping device; 230. a feeding device; 240. a blanking device; 310. a gravity sensing transmission device; 320. a lifting device; 330. a guide device; 340. lifting the driving member; 410. a moving assembly chain; 420. transversely moving the bracket; 430. a traveling sprocket; 440. a sprocket drive; 450. an idler sprocket;

211. a base; 212. a cross beam; 213. a base; 214. a displacement drive assembly; 221. a clamping frame; 222. fixing the clamping assembly; 223. a movable clamping assembly; 224. a limiting component; 225. a belt tidying roller; 231. a movable frame; 232. an auxiliary rotating member; 233. a sliding drive member; 234. a water hose feeding plate; 241. a blanking frame; 242. blanking push plates; 311. a head frame; 312. driving a pulley assembly; 313. a transfer assembly; 314. a belt pressing assembly; 315. a bottom tensioning mechanism; 321. a support rod assembly; 322. a lifting drive mechanism; 331. a guide frame; 332. a joint transition assembly; 333. A lateral guide assembly;

2131. a base body; 2132. rotating the upright post; 2141. a drive motor; 2142. a drive chain; 2211. a water belt inlet; 2212. opening the blanking; 2213. a fixing strip; 2221. a first splint; 2231. Clamping arms; 2232. a second splint; 2233. a step portion; 2241. a swing arm; 2242. an elastic driving member; 2311. a drive ramp; 2321. an abutting portion; 2322. an upward slope surface; 2323. abutting against the roller; 3111. a limiting beam; 3121. a front drive pulley; 3122. a rear drive pulley; 3131. a first conveyor assembly; 3132. a second conveyor belt assembly; 3134. a first gravity trigger mechanism; 3135. A second gravity trigger mechanism; 3136. a second conveyor belt; 3141. a front belt pressing mechanism; 3142. a rear belt pressing mechanism; 3151. a bottom support frame; 3152. a lateral connecting rod; 3153. a tension roller; 3154. tensioning the telescopic rod; 3211. a first support bar; 3212. a second support bar; 3221. a connecting rod assembly; 3222. A lifting drive member; 3223. a first link; 3224. a second link; 3311. a support plate; 3312. A water hose passage; 3321. a guide wheel set; 3322. a guide conveyor belt; 3323. a triangular roller frame; 3324. a guide roller; 3325. a tripod; 3326. a support pillar; 3327. a triangular reinforcing plate; 3331. a guide side roller group; 3332. an extension arm; 3333. a support leg; 3334. a first mounting plate; 3335. a second mounting plate; 3336. a lateral roller; 3337. a first reinforcement beam; 3338. a second reinforcement beam; 31341. a first sensor; 31342. a first trigger; 31343. a reset member; 31345, a rotating link; 31346. a contact roller; 31347. a baffle plate; 31351. a second sensor; 31353, a second trigger; 31411. a front pinch roller set; 31412. turning over the driving piece; 31413. a front compression roller frame.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.

As shown in fig. 1, the present invention provides a water hose laying vehicle including a vehicle body 100, a stacking apparatus 200, a winding apparatus 300, and a traverse apparatus 400.

As shown in fig. 1, the vehicle body 100 includes a head 110, a chassis 120, and a car 130, the head 110 is mounted on a front end of the chassis 120, the car 130 is mounted on the chassis 120, and an upper end of the car 130 is open.

As shown in fig. 2, the traverse device 400 is installed above the carriage 130, and the traverse device 400 includes two traverse assemblies respectively disposed at the front and rear ends of the carriage 130, each traverse assembly including a moving assembly chain 410, a traverse bracket 420, a traveling sprocket 430, and a sprocket driving member 440; the traverse bracket 420 is movably arranged at the upper end of the carriage 130, the moving assembly chain 410 is arranged along the width direction of the carriage 130, the walking chain wheel 430 is rotatably arranged on the traverse bracket 420, the chain wheel driving member 440 is arranged on the traverse bracket 420 and is in driving connection with the walking chain wheel 430, and the walking chain wheel 430 is in matching transmission with the moving assembly chain 410 so as to drive the traverse bracket 420 to move on the moving assembly chain 410.

The stacking apparatus 200 is disposed astride between the two traverse brackets 420 for stacking the water belt in the front-rear direction inside the vehicle body 130.

The winding device 300 is installed at the front end of the stacking device 200 and used for withdrawing the water hose and conveying the water hose to the stacking device 200.

Preferably, the traverse bracket 420 has a channel along the length direction of the moving assembly chain 410, the walking sprocket 430 is disposed in the channel, the two sides of the walking sprocket 430 are respectively and correspondingly rotatably installed with an idle sprocket 450, the lower end portion of the moving assembly chain 410 is wound around the walking sprocket 430, and the two idle sprockets 450 are both connected with the upper end of the moving assembly chain 410 in a matching manner.

Preferably, the stacking apparatus 200 includes a stacking bracket 210, a clamping device 220, a feeding device 230, and a discharging device 240.

The stacking rack 210 includes a base 211 fixedly straddling between two traverse racks 420 and a cross member 212 mounted on the base 211, the cross member 212 being disposed in the front-rear direction.

The clamping device 220 includes a clamping frame 221, a fixed clamping assembly 222, a movable clamping assembly 223, and a spacing assembly 224.

The holding frame 221 is movably mounted on the cross beam 212 and can slide along the front-back direction; the front end of the clamping frame 221 is provided with a water hose feeding port 2211, the fixed clamping assembly 222 is fixedly installed on the clamping frame 221 and located at the upper end of the water hose feeding port 2211, the rear end of the movable clamping assembly 223 is rotatably installed on the clamping frame 221, the front end of the movable clamping assembly 223 is used for being matched with the fixed clamping assembly 222 to clamp a water hose entering from the water hose feeding port 2211, the front end of the movable clamping assembly 223 is located below the fixed clamping assembly 222, and the limiting assembly 224 is movably installed on the clamping frame 221 and used for limiting rotation of the movable clamping assembly 223.

The loading device 230 is mounted to the front end of the base 211 for driving the front end of the movable clamp assembly 223 to move upward to clamp the hose.

In the embodiment of the present application, the base 213 is fixedly connected to the front end of the base 211, the loading device 230 includes a movable frame 231, an auxiliary rotating member 232, and a sliding driving member 233, the movable frame 231 is slidably installed on the base 213 in the front-back direction, a hose feeding plate 234 is installed on the upper side of the rear end of the movable frame 231, the sliding driving member 233 is used for driving the movable frame 231 to slide in the front-back direction, the lower end of the movable frame 231 has a driving inclined surface 2311, the front end of the driving inclined surface 2311 is higher than the rear end of the driving inclined surface 2311, the hose feeding plate 234 is disposed corresponding to the hose feeding port 2211, the auxiliary rotating member 232 is rotatably installed on the base 213, the front end of the auxiliary rotating member 232 has an abutting portion 2321 abutting against the driving inclined surface 2311, the rear end of the auxiliary rotating member 232 has an upper slope 2322 disposed corresponding to the front end of the movable clamping assembly 223, the front end of the upper slope 2322 is higher than the rear end of the upper slope, the rotation axis of the auxiliary rotating member 232 is located between the abutting portion 2321 and the upward sloping surface 2322;

an abutting roller 2323 is installed at the front end of the auxiliary rotating member 232, and an abutting portion 2321 is formed on the outer side surface of the abutting roller 2323.

In an embodiment of the present application, the fixed clamp assembly 222 includes a first clamping plate 2221, the first clamping plate 2221 is fixedly mounted to the clamp frame 221; movable clamp assembly 223 includes clamp arm 2231 and second clamp plate 2232; the stop assembly 224 includes a swing arm 2241 and a resilient drive member 2242.

The rear end of the clamping arm 2231 is rotatably mounted on the clamping frame 221, a step portion 2233 is formed at the rear end of the clamping arm 2231, and the second clamp 2232 is fixedly mounted at the front end of the clamping arm 2231 and located below the first clamp 2221; the swing arm 2241 is rotatably mounted on the clamping frame 221, a limiting portion matched with the step portion 2233 is arranged at the rear end of the swing arm 2241, the limiting portion is used for limiting the rotation of the clamping arm 2231, the front end of the swing arm 2241 is arranged above the clamping arm 2231 in a swinging mode, and the elastic driving piece 2242 is used for driving the swing arm 2241 to rotate, so that the limiting portion moves close to the step portion 2233.

The limiting assembly 224 further comprises a limiting column, a strip-shaped hole groove is formed in the swing arm 2241, the strip-shaped hole groove is of an arc-shaped structure taking the rotation axis of the swing arm 2241 as the circle center, and the limiting column is fixedly installed on the clamping frame 221 and inserted into the strip-shaped hole groove; a first step surface and a second step surface are formed on the outer side of the limiting portion, and when the first step surface and the second step surface are respectively matched with the step portion 2233, the clamping arms 2231 are respectively limited at two different positions.

The clamping device 220 further comprises a belt tidying roller 225, the belt tidying roller 225 is rotatably mounted at the front end of the clamping frame 221, the belt tidying roller 225 is arranged at the upper end of the water belt feeding port 2211, and the height difference between the lower end face of the belt tidying roller 225 and the upper end face of the water belt feeding plate 234 is equal to the thickness of the water belt.

The front end of the clamping arm 2231 is rotatably provided with a climbing roller, and the climbing roller is arranged corresponding to the upper slope surface 2322.

The blanking device 240 is mounted at the rear end of the base 211 and is used for driving the limiting assembly 224 to move so as to release the clamping of the fixed clamping assembly 222 and the movable clamping assembly 223.

Specifically, the blanking device 240 includes a blanking frame 241 and a blanking push plate 242, the blanking frame 241 is fixedly mounted on the stacking support 210, the blanking push plate 242 is fixedly mounted at the front end of the blanking frame 241, the rear end of the clamping frame 221 has a blanking opening 2212, and the blanking push plate 242 is arranged corresponding to the front end of the swing arm 2241 to drive the limiting portion to move away from the step portion 2233.

The front end of the swing arm 2241 is rotatably provided with a push plate roller, and the upper end side of the push plate roller is used for abutting against the lower side surface of the blanking push plate 242.

The stacking support 210 further comprises a displacement driving assembly 214, the displacement driving assembly 214 comprises a driving motor 2141 and a transmission chain 2142, the driving motor 2141 is fixedly installed on the base 211, the transmission chain 2142 is installed on the base 211 in a transmission manner along the front-back direction and is connected with the driving motor 2141, and a fixing strip 2213 fixed with the transmission chain 2142 is installed on the side surface of the clamping frame 221.

The winding device 300 includes a gravity sensing transmission device 310, a lifting device 320, a guiding device 330 and a rotary lifting driving member 340.

The gravity sensing transmission device 310 comprises a machine head frame 311, the rear end of the machine head frame 311 is rotatably installed on a base 213, the front end of the gravity sensing transmission device at least partially exceeds the base 213, a rotary lifting driving member 340 is connected between the base 213 and the gravity sensing transmission device 310 to push the front end of the gravity sensing transmission device 310 to rotate and ascend or descend, and a guiding device 330 is installed at the front end of the gravity sensing transmission device 310 in a lifting manner through a lifting device 320.

Preferably, the guiding device 330 includes a guiding frame 331 and a joint transition assembly 332; the guide frame 331 includes two support plates 3311 disposed opposite to each other, and a water belt passage 3312 is formed between the two support plates 3311; the joint transition assembly 332 is installed at the front part of the water hose channel 3312, the joint transition assembly 332 comprises a guide wheel set 3321 and a guide conveyor belt 3322, the guide wheel set 3321 comprises a horizontally arranged triangular roller frame 3323 and three guide rollers 3324, the triangular roller frame 3323 is rotatably installed between two support plates 3311, the three guide rollers 3324 are rotatably installed on the triangular roller frame 3323, and the three guide rollers 3324 are respectively arranged at three vertex angles of the triangular roller frame 3323 in a one-to-one correspondence manner; the guide conveyor 3322 is installed at the rear end of the guide wheel set 3321 in a driving manner, and the upper end surface of the guide conveyor 3322 is used for conveying and is disposed in parallel with the guide roller 3324.

In the embodiment of the present application, in order to prevent the hose connector from being caught on both sides of the guide frame 331, the guide 330 further includes a lateral guide assembly 333, the lateral guide assembly 333 includes two guide side roller sets 3331, the two guide side roller sets 3331 are symmetrically installed at the front ends of the two support plates 3311, each guide side roller set 3331 includes an extension arm 3332, a support leg 3333, a first mounting plate 3334, a second mounting plate 3335, and at least one side roller 3336, the extension arm 3332 is extended and formed at the front end of the corresponding support plate 3311, the support foot 3333 is connected to the lower side of the front end of the support plate 3311, the first mounting plate 3334 is mounted to the support foot 3333, the second mounting plate 3335 is mounted to the end of the extension arm 3332 and is disposed opposite to the mounting plate, the side roller 3336 is rotatably mounted between the first mounting plate 3334 and the second mounting plate 3335, and the rotation axis of the side roller 3336 is disposed perpendicular to the rotation axis of the triangular roller frame 3323.

In the preferred embodiment of the present application, each guide-side roller set 3331 has a plurality of lateral rollers 3336, and the distance between two corresponding lateral rollers 3336 decreases from front to back; the lateral rollers 3336, which have decreasing distances from front to back, may effectively guide the hose connector to the correct position when the hose connector is in a position offset from the guide frame. Projections of the rotational axis of the plurality of lateral rollers 3336 on the first mounting plate 3334 or the second mounting plate 3335 are located on the same circular arc.

In order to reinforce structural stability between the guide frame 331 and the extension arm 3332, a horizontally disposed first reinforcing beam 3337 is connected between ends of the two extension arms 3332, and a horizontally disposed second reinforcing beam 3338 is connected between the two support legs 3333.

A limit roller is rotatably arranged between the two extension arms 3332, the limit roller is horizontally arranged, and a water belt inlet is formed between the limit roller and the guide wheel set 3321; the arrangement of the limiting roller can effectively ensure that the water hose connector stably reaches the position of the guide wheel group 3321.

The upper end face of the guide conveyor belt 3322 comprises an uphill section and a horizontal section from front to back, wherein the front end of the uphill section is lower in position height than the rear end of the uphill section, and the water belt joint reaches the front end of the uphill section under the guidance of the guide wheel set, is then transported to the horizontal section, and smoothly enters the gravity sensing trigger device 310.

In order to ensure the conveying stability of the guide conveyor belt 3322, a portion of the lower end surface of the guide conveyor belt 3322 corresponding to the horizontal section is mounted with a guide pulley.

In the embodiment of the present application, the triangular drum frame 3323 includes two tripods 3325 rotatably installed at the inner sides of the two support plates 3311 respectively and three support columns 3326 coaxially and oppositely disposed, the three support columns 3326 fixedly connected between the two tripods, and the three support columns 3326 installed around the rotation axes of the tripods at uniform intervals.

To enhance the structural stability of the delta cylinder frame 3323, delta reinforcement plates 3327 are installed between the three support columns 3326.

Above-mentioned guiding device 330 is when using, the hosepipe connects and arbitrary guide roll 3324 butt, it rotates to drive triangle roller frame 3323, guide roll 3324 is revolution motion with triangle roller frame 3323's axis this moment, simultaneously the hosepipe connects and guides friction between the roll 3324 and impels guide roll 3324 to rotate and is rotation motion, make the hosepipe connect can be natural from guide frame 331 front end state motion that hangs down to guide belt 3322 on, the dead problem of card can not take place, the accomodation of hosepipe has been made things convenient for, hosepipe efficiency of accomodating has been promoted.

Preferably, the lifting device 320 includes a supporting rod assembly 321 and a lifting driving mechanism 322, the supporting rod assembly 321 includes a first supporting rod 3211 and a second supporting rod 3212, one end of the first supporting rod 3211 and one end of the second supporting rod 3212 are hinged to the guiding frame 331, the other end of the first supporting rod 3211 and the other end of the second supporting rod 3212 are hinged to the machine head frame 311, the lengths of the first supporting rod 3211 and the second supporting rod 3212 are equal and parallel, the first supporting rod 3211 is located in front of the second supporting rod 3212, and the lifting driving mechanism 322 is configured to drive the first supporting rod 3211 or the second supporting rod 3212 to rotate so as to drive the guiding frame 331 to lift.

The lifting driving mechanism 322 includes a lifting driving member 3222 and a connecting rod assembly 3221, the connecting rod assembly 3221 includes a first connecting rod 3223 and a second connecting rod 3224, one end of the first connecting rod 3223 is hinged between two ends of the second connecting rod 3224, the other end of the first connecting rod 3223 is hinged to the handpiece frame 311, a front end of the second connecting rod 3224 is hinged to the first supporting rod 3211 or the second supporting rod 3212, a rear end of the second connecting rod 3224 is connected to the lifting driving member 3222, and the lifting driving member 3222 is configured to push and pull the second connecting rod 3224 to drive the first supporting rod 3211 or the second supporting rod 3212 to rotate.

In the embodiment of the present application, the lifting driving member 3222 is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is rotatably mounted on the head frame 311, and a piston shaft of the hydraulic cylinder is hinged to the rear end of the second connecting rod 3224.

The first supporting rod 3211 is hinged to the first supporting point with the handpiece frame 311, the second supporting rod 3212 is hinged to the second supporting piece with the handpiece frame 311, an included angle between a connecting line between the first supporting point and the second supporting point and a horizontal plane is not more than 5 degrees, and preferably, the connecting line between the first supporting point and the second supporting point is parallel to the horizontal plane.

The front end of the second connecting rod 3224 is hinged between two ends of the second supporting rod 3212.

The side fixedly connected with spacing roof beam 3111 of aircraft nose frame 311, and spacing roof beam 3111 is located the front end of first bracing piece 3211 and mounting junction, and when first bracing piece 3211 and spacing roof beam 3111 butt, guide frame 331 is located the front end of aircraft nose frame 311, and spacing roof beam 3111 can the effectual rotation angle of guaranteeing bracing piece subassembly 321.

The lifting device 320 connects the base 213 and the guide frame 331 through the support rod assembly 321 and the lifting driving mechanism 322, and drives the second support rod 3212 to rotate through the lifting driving mechanism 322, so as to realize the lifting of the guide frame 331, because the lengths of the first support rod 3211 and the second support rod 3212 are equal and parallel, a component of a parallel four-bar linkage structure is formed between the guide frame 331 and the handpiece frame 311, thereby ensuring the stable lifting of the guide frame 331, when the guide frame 331 is lifted, the whole body can move upwards, so that the guide frame 331 is far away from the initial position as far as possible, and ensuring the wide visual field of a driver.

Preferably, the gravity sensing transmission 310 further comprises a driving pulley assembly 312, a conveying assembly 313 and a belt pressing assembly 314; the driving pulley assembly 312 comprises a front driving pulley 3121 and a rear driving pulley 3122, the front driving pulley 3121 and the rear driving pulley 3122 are respectively rotatably mounted at the front end and the rear end of the handpiece frame 311; the conveyor assembly 313 includes a first conveyor belt assembly 3131, the first conveyor belt assembly 3131 is installed between the front driving pulley 3121 and the rear driving pulley 3122, the first conveyor belt assembly 3131 includes a first conveyor belt, an upper portion of which is a first conveying portion, and a first gravity trigger 3134 installed below the first conveying portion, the first gravity trigger 3134 is triggered by the gravity of an upper object of the first conveying portion;

the belt pressing assembly 314 comprises a front belt pressing mechanism 3141 and a rear belt pressing mechanism 3142, wherein the front belt pressing mechanism 3141 is movably arranged at the front end of the machine head frame 311; the rear driving belt wheel 3122 is movably mounted at the rear end of the nose frame 311, the belt pressing assembly 314 has a first working state and a second working state, when the belt pressing assembly 314 is in the first working state, the front belt pressing mechanism 3141 is separated from the front driving belt wheel 3121, and the rear belt pressing mechanism 3142 is matched with the rear driving belt wheel 3122 to press a water belt at the rear end of the nose frame 311; when the belt pressing assembly 314 is in the second working state, the rear belt pressing mechanism 3142 is separated from the rear driving pulley 3122, and the front belt pressing mechanism 3141 is matched with the front driving pulley 3121 to press the water belt at the front end of the handpiece frame 311; the belt assembly 314 is configured such that when the first gravity trigger 3134 is triggered, the belt assembly 314 switches from the first operating state to the second operating state.

Preferably, the first gravity trigger 3134 comprises a first sensor 31341, a first trigger 31342, and a reset element 31343, wherein one end of the first trigger 31342 is rotatably mounted in the handpiece frame 311, the other end of the first trigger 31342 abuts against at least a portion of the first transmitting portion, the first sensor 31341 is mounted at a predetermined position below the first transmitting portion, and when the first trigger 31342 moves with the first transmitting portion to a preset trigger position of the first sensor 31341, the first gravity trigger 3134 is triggered; the reset 31343 is used to drive the first trigger 31342 away from the first sensor 31341.

The first trigger 31342 includes a rotation link 31345, at least one contact roller 31346, and a stopper 31347, one end of the rotation link 31345 is rotatably installed in the head frame 311, the contact roller 31346 is rotatably installed at the other end of the rotation link 31345, an upper surface of the contact roller 31346 abuts against the first transmitting portion, the stopper 31347 is installed at one end of the rotation link 31345 close to the contact roller 31346, the first sensor 31341 is a photoelectric sensor, and the photoelectric sensor is installed at a predetermined position of a lower side of the stopper 31347.

The reset element 31343 is a spring bolt installed at the lower end of the stop plate 31347, the lower end of the spring bolt is fixed to the head frame 311, and the upper end of the spring bolt is used for elastically driving the stop plate 31347 to reset.

The front belt pressing mechanism 3141 comprises at least one front belt pressing wheel group 31411, each front belt pressing wheel group 31411 comprises a turning driving member 31412, a front roller frame 31413 and two front belt pressing wheels 31414, the two front belt pressing wheels 31414 are rotatably mounted on the front roller frame 31413, the two front belt pressing wheels 31414 are arranged in parallel on the front roller frame 31413, and the turning driving members 31412 are mounted on either side of the head frame 311 for driving the front roller frame 31413 to turn to be close to or far away from the front driving wheel 3121.

The front pinch roller frame 31413 comprises a turning connecting rod 31415, a rotating plate 31416 and two front mounting end plates 31417, the turning connecting rod 31415 is connected to a turning driving piece 31412 in a driving mode, the middle portion of the rotating plate 31416 is hinged to the turning connecting rod 31415, the two front mounting end plates 31417 are rotatably mounted at two ends of the rotating plate 31416 and are arranged oppositely, the front mounting end plates 31417 are symmetrical on two sides in structure, one front pinch roller 31414 is correspondingly mounted on each side, the rotating axis of the front mounting end plates 31417 is located on the axial plane of the front mounting end plates 31417, and the axis of the front pinch roller 31414 is located on the plane where the turning connecting rod 31415 rotates.

The number of the front pinch roller sets 31411 is two, the two front pinch roller sets 31411 are symmetrically arranged on two sides of the handpiece frame 311, and the turning driving pieces 31412 of the two front pinch roller sets 31411 drive the corresponding front pinch roller frames 31413 to turn synchronously.

The rear belt pressing mechanism 3142 comprises a swing driving piece 31421, two swing connecting rods 31422, two rear mounting end plates 31423 and two rear belt pressing wheels 31424, wherein one ends of the two swing connecting rods 31422 are symmetrically hinged to two sides of the machine head frame 311, the two rear mounting end plates 31423 are respectively hinged to the other ends of the two swing connecting rods 31422, the two structural sides of the rear mounting end plates 31423 are symmetrical, one rear belt pressing wheel 31424 is correspondingly mounted on each side, the rotating axis of the rear mounting end plates 31423 is located on the axial surface of the rear mounting end plates 31423, and a swing driving device is mounted on the machine head frame 311 to drive the swing connecting rods 31422 to swing so that the rear belt pressing wheels 31424 are close to or far away from the rear driving belt wheel 3122.

The gravity sensing transmission device 310 further comprises a bottom tensioning mechanism 315, the bottom tensioning mechanism 315 comprises a bottom supporting frame 3151, a lateral connecting rod 3152, a tensioning roller 3153 and a tensioning telescopic rod 3154, the bottom supporting frame 3151 is fixedly installed at the lower end of the machine head frame 311, the upper end of the lateral connecting rod 3152 is fixedly installed on the side surface of the machine head frame 311, the tensioning telescopic rod 3154 is provided with a fixed end and a telescopic end, the fixed end is hinged to the bottom supporting frame 3151, the telescopic end is hinged to the lower end of the lateral connecting rod 3152, the tensioning roller 3153 is hinged between the two ends of the lateral connecting rod 3152, the rotating axis of the tensioning roller 3153 is parallel to the rotating axis of the front driving belt pulley 3121, and the lower side part of the first conveying belt is abutted to and tensioned with the outer side surface of the tensioning roller 3153.

The conveyor assembly 313 further includes a second conveyor belt assembly 3132, the second conveyor belt assembly 3132 being mounted to a rear side of the rear drive pulley 3122, the second conveyor belt assembly 3132 including a second conveyor belt 3136 and a second gravity trigger 3135, the second gravity trigger 3135 being located at a lower end of the second conveyor belt 3136, an upper side portion of the second conveyor belt 3136 being a second conveying portion, the second gravity trigger 3135 being mounted to a lower end of the second conveying portion; the second gravity trigger 3135 includes a second sensor 31351, an elastic support plate 31352, and a second trigger 31353, the elastic support plate 31352 is mounted on a lower end of the second transfer part, the second trigger 31353 is mounted on a lower end of the elastic support plate 31352, the second sensor 31351 is mounted at a lower predetermined position of the second transfer part, the second gravity trigger 3135 is triggered when the second trigger 31353 is elastically displaced with the elastic support plate 31352 to a preset trigger position of the second sensor 31351, and the push belt assembly 314 is configured such that the push belt assembly 314 is switched from the second operating state to the first operating state when the second gravity trigger 3135 is triggered.

Preferably, the base 213 includes a seat body 2131 and a rotating column 2132 fixedly connected to the upper end surface of the seat body 2131, the rotating column 2132 is located at the rear side of the seat body 2131, and the handpiece frame 311 is hinged to the upper end of the rotating column 2132; two ends of the rotary lifting driving element 340 are respectively hinged to the seat body 2131 and the machine head frame 311, and one end of the rotary lifting driving element 340 connected with the machine head frame 311 is higher than the other end thereof.

According to the water hose laying vehicle provided by the utility model, the traversing device 400 adopts the mode that the traversing bracket 420 is matched with the traveling assembly chain 410 and the traveling chain wheel 430, and the chain wheel is directly driven to rotate by the chain wheel driving part 440, so that the traversing bracket 420 moves along the traveling assembly chain 410, the position stability of the traversing bracket 420 is greatly improved due to the stability of the meshing motion of the chain wheel and the chain, and in addition, the accuracy of the water hose stacking position is ensured because the stacking device 200 and the winding device 300 are arranged at the upper end of the traversing bracket 420, so that the water hoses in the carriage 130 are stacked more regularly, and the subsequent water hoses are convenient to lay and use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. A water hose laying vehicle is characterized by comprising a vehicle body, stacking equipment, winding equipment and transverse moving equipment;

2. The water hose laying vehicle according to claim 1, wherein the traverse bracket has a passage along a length direction of the traveling assembly chain, the traveling sprocket is disposed in the passage, idler sprockets are rotatably mounted on both sides of the traveling sprocket, a lower end portion of the traveling assembly chain is wound around the traveling sprocket, and both of the idler sprockets are connected to an upper end of the traveling assembly chain in a fitting manner.

3. A water hose laying truck according to claim 1 or 2, characterized in that said stacking equipment comprises a stacking support, a clamping device, a loading device and a blanking device; the stacking support comprises a base fixedly arranged between the two transverse moving supports in a spanning mode and a cross beam arranged on the base, and the cross beam is arranged in the front-back direction; the clamping device comprises a clamping frame, a fixed clamping assembly, a movable clamping assembly and a limiting assembly, wherein the clamping frame is movably arranged on the cross beam and can slide along the front and back directions; the front end of the clamping frame is provided with a water belt feeding port, the fixed clamping assembly is fixedly arranged on the clamping frame and is positioned at the upper end of the water belt feeding port, the rear end of the movable clamping assembly is rotatably arranged on the clamping frame, the front end of the movable clamping assembly is used for clamping a water belt entering from the water belt feeding port in a matching manner with the fixed clamping assembly, the front end of the movable clamping assembly is positioned below the fixed clamping assembly, and the limiting assembly is movably arranged on the clamping frame and is used for limiting the rotation of the movable clamping assembly; the feeding device is arranged at the front end of the base and used for driving the front end of the movable clamping assembly to move upwards so as to clamp the water belt; the blanking device is arranged at the rear end of the base and used for driving the limiting assembly to move so as to release the clamping of the fixed clamping assembly and the movable clamping assembly.

4. A water hose laying truck according to claim 3, wherein a base is fixedly connected to the front end of the base, the loading device includes a movable frame, an auxiliary rotating member and a sliding driving member, the movable frame is slidably mounted on the base in the front-rear direction, a water hose feeding plate is mounted on the upper side of the rear end of the movable frame, the sliding driving member is used for driving the movable frame to slide in the front-rear direction, the lower end of the movable frame has a driving inclined surface, the front end of the driving inclined surface is higher than the rear end of the driving inclined surface, the water hose feeding plate is disposed corresponding to the water hose feeding port, the auxiliary rotating member is rotatably mounted on the base, the front end of the auxiliary rotating member has an abutting portion abutting against the driving inclined surface, the rear end of the auxiliary rotating member has an upper slope surface disposed corresponding to the front end of the movable clamping assembly, the height of the front end of the upper slope surface is higher than that of the rear end of the upper slope surface, and the rotating shaft of the auxiliary rotating piece is positioned between the abutting part and the upper slope surface; the fixed clamping assembly comprises a first clamping plate, and the first clamping plate is fixedly arranged on the clamping frame; the movable clamping assembly comprises a clamping arm and a second clamping plate, the rear end of the clamping arm is rotatably arranged on the clamping frame, a step part is formed at the rear end of the clamping arm, and the second clamping plate is fixedly arranged at the front end of the clamping arm and is positioned below the first clamping plate; spacing subassembly includes swing arm and elastic drive spare, the swing arm rotatable install in the centre gripping frame, the rear end of swing arm have with the spacing portion of step portion complex, spacing portion is used for the restriction the arm lock rotates, but the front end wobbling of swing arm set up in the top of arm lock, elastic drive spare is used for the drive the swing arm rotates, so that spacing portion is to being close to the step portion motion, unloader includes unloading frame and unloading push pedal, unloading frame fixed mounting in put things in good order the support, unloading push pedal fixed mounting in the front end of unloading frame, the rear end of centre gripping frame has a unloading opening, the unloading push pedal with the front end of swing arm corresponds the setting, in order to drive spacing portion is to keeping away from the step portion motion.

5. A water hose laying carriage according to claim 4, characterised in that the winding apparatus comprises a gravity-sensitive transmission device, a lifting device, a guiding device and a rotary lifting drive; the gravity sensing transmission device comprises a machine head frame, the rear end of the machine head frame is rotatably arranged on the base, at least part of the front end of the gravity sensing transmission device exceeds the base, the rotary lifting driving piece is connected between the base and the gravity sensing transmission device to push the front end of the gravity sensing transmission device to rotate and ascend or descend, and the guide device is arranged at the front end of the gravity sensing transmission device through the lifting device.

6. A water hose laying truck according to claim 5, characterised in that said guide means comprises a guide frame and a joint transition assembly; the guide frame comprises two oppositely arranged support plates, and a water belt channel is formed between the two support plates; the joint transition assembly is arranged at the front part of the water hose channel and comprises a guide wheel set and a guide conveying belt, the guide wheel set comprises a triangular roller frame and three guide rollers which are horizontally arranged, the triangular roller frame is rotatably arranged between the two supporting plates, the three guide rollers are rotatably arranged on the triangular roller frame, and the three guide rollers are respectively arranged at the three vertex angles of the triangular roller frame in a one-to-one correspondence manner; the guide conveyor belt is installed at the rear end of the guide wheel set in a transmission mode, and the upper end face of the guide conveyor belt is used for conveying and is arranged in parallel with the guide roller.

7. A water hose laying carriage according to claim 6, wherein the lifting device comprises a support bar assembly and a lifting drive mechanism, the support bar assembly comprises a first support bar and a second support bar, one end of the first support bar and one end of the second support bar are hinged to the guide frame, the other end of the first support bar and the other end of the second support bar are hinged to the machine head frame, the first support bar and the second support bar are arranged in parallel and have the same length, the first support bar is arranged in front of the second support bar, and the lifting drive mechanism is used for driving the first support bar or the second support bar to rotate so as to drive the guide frame to lift.

8. A water hose laying vehicle according to claim 5, wherein said gravity-induced transfer means further comprises a drive pulley assembly, a transfer assembly and a belt press assembly; the driving belt wheel assembly comprises a front driving belt wheel and a rear driving belt wheel, and the front driving belt wheel and the rear driving belt wheel are respectively and rotatably arranged at the front end and the rear end of the handpiece frame; the conveying assembly comprises a first conveying belt assembly, the first conveying belt assembly is installed between the front driving belt wheel and the rear driving belt wheel, the first conveying belt assembly comprises a first conveying belt and a first gravity trigger mechanism, the upper side part of the first conveying belt is a first conveying part, the first gravity trigger mechanism is installed below the first conveying part, and the first gravity trigger mechanism is triggered by the gravity of an object at the upper end of the first conveying part;

9. A water hose laying truck according to claim 8, wherein said first gravity trigger mechanism comprises a first sensor, a first trigger member and a reset member, one end of said first trigger member is rotatably mounted in said head frame, the other end of said first trigger member abuts at least part of said first transfer part, said first sensor is mounted at a predetermined position below said first transfer part, and said first gravity trigger mechanism is triggered when said first trigger member moves with said first transfer part to a preset trigger position of said first sensor; the reset piece is used for driving the first trigger piece to be far away from the first sensor.

10. A water hose laying vehicle according to claim 8, wherein said base comprises a base body and a rotary post fixedly connected to an upper end surface of said base body, said rotary post being located at a rear side of said base body, said head frame being hinged to an upper end of said rotary post; two ends of the rotary lifting driving piece are respectively hinged to the base body and the machine head frame, and one end of the rotary lifting driving piece, which is connected with the machine head frame, is higher than the other end of the rotary lifting driving piece.