CN110316264B - Turnover locking device for stable support of motor vehicle cab - Google Patents
Turnover locking device for stable support of motor vehicle cab Download PDFInfo
- Publication number
- CN110316264B CN110316264B CN201910687803.1A CN201910687803A CN110316264B CN 110316264 B CN110316264 B CN 110316264B CN 201910687803 A CN201910687803 A CN 201910687803A CN 110316264 B CN110316264 B CN 110316264B
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- rod
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- locking
- lock head
- turnover
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- 230000007306 turnover Effects 0.000 title claims abstract description 31
- 230000008093 supporting effect Effects 0.000 claims abstract description 16
- 230000000670 limiting effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000009964 serging Methods 0.000 description 2
- 241000755266 Kathetostoma giganteum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
- B62D33/07—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable characterised by the device for locking the cab in the tilted or in the driving position
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a turnover locking device for stably supporting a motor vehicle cab, which comprises a turnover assembly and a supporting assembly, wherein the turnover locking device comprises a turnover seat, a turnover seat and a turnover seat; the overturning assembly comprises an overturning shaft, a first connecting support, a second connecting support, a frame and a framework at the bottom of the cab; the support assembly is used for locking and supporting when the cab is overturned to any angle, and comprises a telescopic rod composed of a rod sleeve and a shaft rod, and a locking device which is arranged on the telescopic rod and used for limiting the rod sleeve and the shaft rod to slide relatively, wherein the shaft rod is arranged in the rod sleeve in a sliding manner, and the locking device is arranged at a sliding connection port of the rod sleeve; the bottom of the rod sleeve is rotationally connected with the frame through a pin shaft connecting piece, and the top of the shaft rod is rotationally connected with the framework through a pin shaft connecting piece. The support assembly can be locked and fixed at any angle when the cab is overturned, so that the function of support is met, the stability of the support is ensured, the cab is prevented from falling due to unstable support, and the safety is improved.
Description
Technical Field
The invention belongs to the technical field of motor vehicle equipment, and particularly relates to a turnover locking device for a motor vehicle cab stable support.
Background
The engines and gearboxes of flathead trucks, agricultural machines, construction machines and other running machines are located on chassis girders below the cab, and the cab needs to be turned over during maintenance or repair to expose the engines and gearboxes covered by the cab. The prior art achieves the purpose of turning the cab by installing a turning mechanism between the cab and the chassis girder, and supporting the cab by a social supporting rod structure between the cab and the chassis girder so as to leave enough space for maintenance and inspection. However, since the existing turnover mechanism is completed by self-locking the support column after the cab is turned to a certain specific position, the support column has the function of supporting and locking only in the state, once the turnover angle of the cab is insufficient, the support column cannot provide stable supporting effect, and the problem of safety caused by falling of the cab due to unstable supporting can be caused.
Disclosure of Invention
The present invention is directed to the problems of the prior art described above and provides a roll-over locking device for a stable support of a motor vehicle cab.
The invention solves the technical problems by the following technical means:
a turnover locking device for stably supporting a motor vehicle cab comprises a turnover assembly arranged at the head part of the cab and a supporting assembly arranged at the tail part close to the cab; the turnover assembly comprises a turnover shaft, a first connecting support, a second connecting support, a frame and a framework at the bottom of the cab, wherein two ends of the turnover shaft are connected with the frame at the bottom through the second connecting support, and two ends of the turnover shaft are fixedly connected with the framework through the first connecting support; the support assembly is used for locking and supporting when the cab is overturned to any angle, and comprises a telescopic rod composed of a rod sleeve and a shaft rod, and a locking device which is arranged on the telescopic rod and used for limiting the rod sleeve and the shaft rod to slide relatively, wherein the shaft rod is arranged in the rod sleeve in a sliding manner, and the locking device is arranged at a sliding connection port of the rod sleeve; the bottom of the rod sleeve is rotationally connected with the frame through a pin shaft connecting piece, and the top of the shaft rod is rotationally connected with the framework through a pin shaft connecting piece.
Further, the locking device comprises a locking box, an elastic piece, a lock head, a first spring and a controller, wherein the elastic piece, the lock head and the first spring form an executing component; the locking box is fixedly arranged on the side wall of the rod sleeve, the elastic sheet, the lock head and the first spring are fixedly arranged in the locking box, the elastic sheet is axially arranged along the rod sleeve, the lower end of the elastic sheet is fixed on the top wall of the locking box, the upper end of the elastic sheet is fixedly connected with the lock head, the lock head is perpendicular to the side wall of the rod sleeve, the first spring is arranged between the elastic sheet and the top wall of the locking box and presses the elastic sheet to the rod sleeve, a through hole which is in sliding fit with the lock head is formed in the side wall of the rod sleeve, caulking grooves which are embedded with the lock head are formed in the side wall of the shaft rod, and the caulking grooves are uniformly distributed along the axial direction of the shaft rod; the controller enables the lock head to be separated from the caulking groove by controlling the elastic sheet to be far away from the rod sleeve, so that the telescopic adjustment of the rod sleeve and the shaft lever is realized.
Further, the matching surface of the lock head and the caulking groove is set to be a cambered surface when the shaft lever and the lever sleeve are subjected to relative motion extension.
Further, the controller is a handle, the handle is rotatably arranged on the outer side of the top wall of the locking box through a pin shaft connecting piece, a connecting rod is arranged at the head of the handle, and the connecting rod penetrates through the top wall of the locking box in a sliding mode and is fixedly connected with the lock head.
Further, a locating sleeve in sliding fit with the lock head is welded on the outer side of the through hole of the rod sleeve, the shape and the size of the internal section of the locating sleeve are identical to those of the lock head, gaps are formed in the upper side wall and the lower side wall of the locating sleeve, and the width of the gaps is identical to that of the elastic sheet.
Further, the width of the notch is smaller than the width of the positioning sleeve.
Further, a clamping hook is arranged outside the top wall of the locking box and is arranged at the tail end of the handle, and the clamping hook is used for clamping the handle when the handle is pressed to the limit.
Further, the controller is a sliding block, connecting arms are arranged at two ends of the sliding block, a compression bar is fixedly arranged between the two connecting arms, and a gap is arranged between the compression bar and the sliding block; two waist grooves which are in sliding fit with the connecting arms are formed in the top wall of the locking box, the sliding blocks are arranged on the outer surface of the top wall of the locking box in a sliding mode through the connecting arms, the pressing rods are arranged in the locking box, and the pressing rods are in contact with the elastic pieces and slide towards the top wall of the locking box through the sliding blocks to enable the elastic pieces to be pressed towards the top wall of the locking box, so that the locking head is separated from the caulking groove.
Further, install stop device in the sliding block, stop device includes push rod, rotation and position pole and second spring, be equipped with the installation cavity in the sliding block, be equipped with the opening of bar on the mating surface of sliding block and locking box, opening and installation cavity intercommunication, the top of rotation stop pole is rotated through the round pin hub connection piece and is installed at the top of installation cavity, the bottom of rotation stop pole extends to outside the roof of locking box through the opening, push rod and second spring set up respectively in the both sides of rotation stop pole, the one end slip of push rod runs through the sliding block and extends to outside, the other end butt rotation of push rod stops the position pole, the one end of second spring is fixed on the lateral wall of installation cavity, the other end of second spring is fixed on rotation stop pole, the lower extreme of rotation stop pole is equipped with the arcuation and ends piece, the roof surface of locking box is equipped with the tooth's socket of stopping piece complex, the push rod is through promoting the lower extreme that makes rotation stop pole and is not in the opening, the second spring is through making the hidden position of embedding in the second spring.
The beneficial effects of the invention are as follows: the support assembly can be locked and fixed at any angle when the cab is overturned, so that the function of support is met, the stability of the support is ensured, the cab is prevented from falling due to unstable support, and the safety is improved.
Drawings
FIG. 1 is a schematic perspective view of an inversion locking device according to the present invention;
FIG. 2 is a schematic side view of the flip-flop latch of the present invention;
FIG. 3 is a schematic perspective view of the support assembly of embodiment 1;
FIG. 4 is a schematic view showing the internal structure of the support assembly in embodiment 1;
FIG. 5 is a schematic diagram of the cooperation of the lock head and the positioning sleeve in embodiment 1;
FIG. 6 is a schematic perspective view of the support assembly of embodiment 2;
FIG. 7 is a schematic view showing the internal structure of the support assembly in embodiment 2;
fig. 8 is a schematic structural view of a limiting device in a slider in embodiment 2.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 and 2, a roll-over locking device for a stable support of a motor vehicle cab comprises a roll-over assembly and a support assembly; the turnover assembly comprises a turnover shaft 10, a first connecting support 11, a second connecting support 12, a frame 13 and a framework 14 at the bottom of a cab (not shown in the figure), wherein two ends of the turnover shaft 10 are connected with the frame 13 at the bottom through the second connecting support 12, the turnover shaft 10 is rotationally connected with the second connecting support 12, two ends of the turnover shaft 10 are fixedly connected with the framework 14 through the first connecting support 11, the turnover assembly is arranged at the head of the cab, the cab and the frame 13 of the motor vehicle can rotate around the turnover shaft 10 by pushing the cab upwards, so that the cab of the motor vehicle is turned over, a torsion bar 15 is arranged between the two second connecting supports 12, one end of the torsion bar 15 is fixedly connected with one second connecting support 12, the other end of the torsion bar 15 penetrates through the other second connecting support 12 and is rotationally connected with the other second connecting support 12, one end of the torsion bar 15, which is rotationally fixedly connected with a torsion arm 16, and the torsion arm 16 is arranged at the bottom of the framework at the bottom of the motor vehicle cab and is in sliding contact with the torsion bar 16; when the motor vehicle cab is opened, the torsion bar 15 is in a torsion stress state and stores elastic potential energy, when an operator needs to lift the motor vehicle cab, the motor vehicle cab is jacked up upwards, the torsion stress state of the torsion bar 15 is reduced, and the elastic potential energy is converted into the upward overturning kinetic energy of the motor vehicle cab, so that the labor saving of the operator is helped; in addition, in order to further reduce the labor intensity of operators, devices such as a pneumatic rod (not shown in the figure) and the like can be arranged between the framework at the bottom of the cab of the motor vehicle and the frame 13 to help the operators save labor, and meanwhile, the device can work in cooperation with the torsion bar 15, so that the load of the torsion bar 15 during work is reduced, and the durability of the torsion bar 15 is improved.
The support assembly can be turned to any angle in the cab to lock the support to prevent the cab from falling due to unstable support. As shown in fig. 2, the support assembly is disposed near the tail of the cab, and comprises a telescopic rod composed of a rod sleeve 21 and a shaft lever 22, and a locking device disposed on the telescopic rod for limiting the relative sliding of the rod sleeve 21 and the shaft lever 22, wherein the shaft lever 22 is slidably disposed in the rod sleeve 21, and the locking device is disposed at a sliding connection port of the rod sleeve 21; the bottom of the rod sleeve 21 is rotationally connected with the frame 13 through a pin shaft connector, and the top of the shaft lever 22 is rotationally connected with the framework 14 through a pin shaft connector.
When the cab is turned over, the rod sleeve 21 and the shaft lever 22 slide relatively and stretch, and when the cab is required to be turned over at a fixed angle, the relative movement of the rod sleeve 21 and the shaft lever 22 is limited by the locking device, so that the rod sleeve 21 and the shaft lever 22 keep fixed in position, the supporting function is met, and the supporting stability is ensured.
In this embodiment, as shown in fig. 3 and 4, the locking device includes a locking box 230, a spring piece 231, a lock head 232, a first spring 233, and a controller, where the spring piece 231, the lock head 232, and the first spring 233 form an executing component; the locking box 230 is fixedly arranged on the side wall of the rod sleeve 21, the elastic sheet 231, the lock head 232 and the first spring 233 are fixedly arranged in the locking box 230, the elastic sheet 231 is axially arranged along the rod sleeve 21, the lower end of the elastic sheet 231 is fixedly connected with the lock head 232 and is perpendicular to the side wall of the rod sleeve 21, the first spring 233 is arranged between the elastic sheet 231 and the top wall of the locking box 230 to press the elastic sheet 231 to the rod sleeve 21, a through hole 211 which is in sliding fit with the lock head 232 is formed in the side wall of the rod sleeve 21, caulking grooves 221 which are embedded with the lock head 232 are formed in the side wall of the shaft lever 22, and the caulking grooves 221 are uniformly distributed along the axial direction of the shaft lever 22; the controller is characterized in that the controller is a handle 234 by controlling the elastic sheet 231 to keep away from the rod sleeve 21 so that the lock head 232 is separated from the caulking groove 221, the controller is a handle 234, the handle 234 is rotatably arranged on the outer side of the top wall of the locking box 230 through a pin shaft connecting piece, a movable connecting rod 235 is arranged at the head of the handle 234, and the connecting rod 235 slidably penetrates through the top wall of the locking box 230 and is rotatably connected with the lock head 232.
Thus, under the pressure of the first spring 233, the lock head 232 is pressed into the caulking groove 221 under the normal state, so that the shaft lever 22 is blocked and limited to move, after the handle 234 is pinched, the head of the handle 234 drives the lock head 232 to move towards the top wall of the locking box 230 through the connecting rod 235, the first spring 233 is compressed to store elastic potential energy, at the moment, the lock head 232 is separated from the caulking groove 221, the shaft lever 22 and the rod sleeve 21 can move relatively, after the cab is pushed upwards to a certain angle, the handle 234 is only required to be loosened, the lock head 232 is pressed back to the caulking groove 221 by the release of the elastic potential energy stored by the first spring 233, so that the shaft lever 22 and the rod sleeve 21 are locked to support the cab, and stable supporting effect can be provided when the cab is overturned to any angle.
In order to improve the convenience of the support assembly, the driver does not need to press the handle 234 directly when turning the cab upwards, as shown in fig. 4, the mating surfaces of the lock head 232 and the caulking groove 221 are arc surfaces when the shaft 22 and the rod sleeve 21 are elongated in a relative motion. When the cab is turned upwards, the shaft lever 22 stretches relative to the lever sleeve 21, after the lock head 232 is in contact fit with the cambered surface of the caulking groove 221, the cambered surface of the caulking groove 221 presses the cambered surface of the lock head 232 to slide relatively between the cambered surfaces of the lock head 232 and the caulking groove 221 when the shaft lever 22 moves, so that the lock head 232 is pushed into the locking box 230 until the lock head 232 is embedded into the caulking groove 221 at the rear, after the turning is repeatedly known to stop, the lock head 232 is separated from the cambered surface of the caulking groove 221 under the action of the gravity of the cab, and one surface opposite to the cambered surface contacts with one surface to limit and support the shaft lever 22. Thus, the lock head 232 can be automatically pressed back to the locking box 230 by the shaft lever 22 in the extending process, so that the handle 234 is prevented from being directly pressed by people, and the convenience in use of the support assembly is greatly improved.
In addition, because the thickness of the sleeve 21 is too small, it is difficult to position the lock 232 always perpendicular to the side wall of the sleeve 21, and particularly during the supporting process, the gravity of the cab acts on the shaft 22 to press the lock 232 to incline downwards, which may cause the lock 232 to lose the limiting effect, and the shaft 22 may be pressed back into the sleeve 21. In view of this, as shown in fig. 4 and 5, a positioning sleeve 236 in sliding fit with the lock head 232 is welded at the outer side of the through hole 211 of the rod sleeve 21, the shape and size of the inner section of the positioning sleeve 236 are identical to those of the lock head 232, notches 237 are arranged on the upper and lower side walls of the positioning sleeve 236, the width of the notches 237 is identical to that of the elastic pieces 231, so that the elastic pieces 231 can be close to the rod sleeve 21 when the lock head 232 is matched with the caulking grooves 221 without affecting the normal working stroke of the elastic pieces 231, and in addition, the width of the notches 237 is smaller than that of the positioning sleeve 236 so as to ensure the positioning limiting function of the positioning sleeve 236 on the lock head 232 and avoid the inclination of the lock head 232 caused by the gravity action of a cab on the shaft lever 22.
In order to improve the convenience of the support assembly, the handle 234 does not need to be directly pressed by a person when the cab falls back downwards, as shown in fig. 3, a clamping hook 238 is arranged outside the top wall of the locking box 230, the clamping hook 238 is arranged at the tail pressing end of the handle 234, the clamping hook 238 is used for clamping the handle 234 when the handle 234 is pressed to the limit, and thus the cab can fall back without directly pressing the handle, wherein the clamping hook 238 is an elastic component, and the handle 234 can be taken out from the clamping hook 238 at any time.
Example 2
This embodiment is different from embodiment 1 in that the structure of the controller is different. In this embodiment, as shown in fig. 6 and 7, the controller is a sliding block 241, two ends of the sliding block 241 are provided with connecting arms 242, a compression bar 243 is fixedly installed between the two connecting arms 242, and a gap is provided between the compression bar 243 and the sliding block 241; two waist grooves 244 in sliding fit with the connecting arms 242 are formed in the top wall of the locking box 230, the sliding block 241 is slidably disposed on the outer surface of the top wall of the locking box 230 through the connecting arms 242, the pressing rod 243 is disposed in the locking box 230, the pressing rod 243 contacts with the elastic sheet 231 and slides towards the locking head 232 through the sliding block 241 to press the elastic sheet 231 to the top wall of the locking box 230, so that the locking head 232 is separated from the caulking groove 221.
Thus, the control of the lock head 232 and the caulking groove 221 can be realized by the sliding block 241. When the cab needs to be turned upwards, the sliding block 241 is pushed to the lowest end and far away from the tapered end 232, so that the cab can be turned without manual interference through the designed arc sides of the tapered end 232 and the caulking groove 221 in the embodiment 1, and the cab can be stably supported by locking and fixing at any time; when the cab is required to be put down, the sliding block 241 is pushed to the uppermost end, the elastic piece 231 is pressed by the pressing rod 243 to be almost attached to the top wall of the locking box 230, the lock head 232 is also separated from the caulking groove 221, and the shaft lever 22 can be reset freely due to the limitation of losing.
Because the elastic sheet 231 and the first spring 233 have stronger elasticity, the shaft lever 22 and the elastic sheet 231 are in sliding contact, no limiting mechanism exists, in order to prevent the elastic reset of the elastic sheet 231 and the first spring 233 from enabling the shaft lever 22 to slide back to the original position along the elastic sheet 231, so that the lock head 232 is embedded into the embedding groove 221 again to influence the cab reset, a limiting device is installed in the sliding block 241, as shown in fig. 8, the limiting device comprises a push rod 245, a rotation stop rod 246 and a second spring 247, a mounting cavity 248 is arranged in the sliding block 241, a strip-shaped opening 249 is arranged on the matching surface of the sliding block 241 and the locking box 230, the opening 249 is communicated with the mounting cavity 248, the top end of the rotation stop rod 246 is rotatably installed at the top of the mounting cavity 248 through a pin shaft connecting piece, the bottom end of the rotation stop rod 246 extends out of the top wall of the locking box 230 through the opening 249, the push rod 245 and the second spring 247 are respectively arranged at two sides of the rotation stop rod 246, one end of the push rod 245 extends to the outside through the sliding block 241, the other end 246 of the push rod 245 is abutted against the other end 246 of the tooth groove 246, the other end 246 of the rotation stop rod 246 is arranged at the other end of the groove 247 is abutted against the top wall of the second spring 247, the top wall of the sealing piece 250 is movably arranged at the top wall of the sealing groove 247, the sealing piece 250 is embedded in the sealing groove 250 is arranged at the top wall of the sealing groove 250, and the sealing groove 250 is embedded in the sealing groove 250 is arranged at the sealing groove 250, and has the sealing groove 250 is arranged at the sealing groove, and has the sealing groove sealing structure has sealing structure.
In the above-mentioned design, the second spring 247 pushes the rotation stop rod 246 out to expose the stop piece 250, so that the rotation stop rod 246 is engaged with the tooth slot 251 to limit the sliding block 241 to slide, when the sliding is needed, the push rod 245 is pressed to push the rotation stop rod 246, so that the stop piece 250 is accommodated in the opening 249, and the sliding block 241 can slide freely; when the cab is reset, the sliding block 241 is slid to the top end, and after the hand is released, the second spring 247 automatically pushes the rotation stop rod 246 to expose the stop piece 250, so that the elastic reset of the elastic sheet 231 and the first spring 233 can be avoided to enable the shaft lever 22 to slide back to the original position along the elastic sheet 231.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. The turnover locking device for the stable support of the motor vehicle cab is characterized by comprising a turnover assembly arranged at the head part of the cab and a support assembly arranged at the tail part close to the cab; the turnover assembly comprises a turnover shaft (10), a first connecting support (11), a second connecting support (12), a frame (13) and a framework (14) at the bottom of the cab, wherein two ends of the turnover shaft (10) are connected with the frame (13) at the bottom through the second connecting support (12), and two ends of the turnover shaft (10) are fixedly connected with the framework (14) through the first connecting support (11); the support assembly is used for locking and supporting when the cab is overturned to any angle, and comprises a telescopic rod composed of a rod sleeve (21) and a shaft lever (22) and a locking device which is arranged on the telescopic rod and used for limiting the rod sleeve (21) and the shaft lever (22) to slide relatively, wherein the shaft lever (22) is arranged in the rod sleeve (21) in a sliding mode, and the locking device is arranged at a sliding connection port of the rod sleeve (21); the bottom of the rod sleeve (21) is rotationally connected with the frame (13) through a pin shaft connector, and the top of the shaft lever (22) is rotationally connected with the framework (14) through a pin shaft connector;
the locking device comprises a locking box (230), an elastic piece (231), a lock head (232), a first spring (233) and a controller, wherein the elastic piece (231), the lock head (232) and the first spring (233) form an executing component; the locking box (230) is fixedly arranged on the side wall of the rod sleeve (21), the elastic sheet (231), the lock head (232) and the first spring (233) are fixedly arranged in the locking box (230), the elastic sheet (231) is axially arranged along the rod sleeve (21) and the lower end of the elastic sheet is fixed on the top wall of the locking box (230), the upper end of the elastic sheet (231) is fixedly connected with the lock head (232) and the lock head (232) is perpendicular to the side wall of the rod sleeve (21), the first spring (233) is arranged between the elastic sheet (231) and the top wall of the locking box (230) to press the elastic sheet (231) to the rod sleeve (21), a through hole (211) which is in sliding fit with the lock head (232) is formed in the side wall of the rod sleeve (21), and the caulking grooves (221) which are jogged with the lock head (232) are formed in the side wall of the rod (22) are uniformly distributed along the axial direction of the rod (22); the controller enables the lock head (232) to be separated from the caulking groove (221) through controlling the elastic sheet (231) to be far away from the rod sleeve (21) so as to realize telescopic adjustment of the rod sleeve (21) and the shaft lever (22);
the matching surface of the lock head (232) and the caulking groove (221) is set as an arc surface when the shaft lever (22) and the lever sleeve (21) are subjected to relative motion and elongation;
the controller is a sliding block (241), connecting arms (242) are arranged at two ends of the sliding block (241), a pressing rod (243) is fixedly arranged between the two connecting arms (242), and a gap is arranged between the pressing rod (243) and the sliding block (241); two waist grooves (244) which are in sliding fit with the connecting arms (242) are formed in the top wall of the locking box (230), the sliding blocks (241) are arranged on the outer surface of the top wall of the locking box (230) in a sliding mode through the connecting arms (242), the pressing rods (243) are arranged in the locking box (230), the pressing rods (243) are in contact with the elastic pieces (231) and slide towards the direction of the locking heads (232) through the sliding blocks (241), and the elastic pieces (231) are pressed towards the top wall of the locking box (230) to enable the locking heads (232) to be separated from the caulking grooves (221).
2. The turnover locking device of a motor vehicle cab stable support according to claim 1, characterized in that a limiting device is installed in the sliding block (241), the limiting device comprises a push rod (245), a rotation stop rod (246) and a second spring (247), a mounting cavity (248) is arranged in the sliding block (241), a strip-shaped opening (249) is arranged on the matching surface of the sliding block (241) and the locking box (230), the opening (249) is communicated with the mounting cavity (248), the top end of the rotation stop rod (246) is rotatably installed at the top of the mounting cavity (248) through a pin shaft connecting piece, the bottom end of the rotation stop rod (246) extends to the outside of the top wall of the locking box (230) through the opening (249), the push rod (245) and the second spring (247) are respectively arranged at two sides of the rotation stop rod (246), one end of the push rod (245) extends to the outside in a sliding way, the other end of the push rod (245) is connected with the rotation stop rod (246), the other end of the second spring (246) is abutted against the rotation stop rod (247) and the second spring (247) is fixedly arranged at the upper end of the rotation stop rod (247) of the arc-shaped side wall (250), the outer surface of the top wall of the locking box (230) is provided with strip-shaped tooth grooves (251) matched with the stop pieces (250), the push rod (245) is pushed to enable the lower end of the rotary stop rod (246) to be hidden in the opening (249), and the second springs (247) enable the stop pieces (250) to be exposed and embedded into the tooth grooves (251) through elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910687803.1A CN110316264B (en) | 2019-07-26 | 2019-07-26 | Turnover locking device for stable support of motor vehicle cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910687803.1A CN110316264B (en) | 2019-07-26 | 2019-07-26 | Turnover locking device for stable support of motor vehicle cab |
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| Publication Number | Publication Date |
|---|---|
| CN110316264A CN110316264A (en) | 2019-10-11 |
| CN110316264B true CN110316264B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910687803.1A Active CN110316264B (en) | 2019-07-26 | 2019-07-26 | Turnover locking device for stable support of motor vehicle cab |
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| CN (1) | CN110316264B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111361664A (en) * | 2020-04-26 | 2020-07-03 | 王俊 | Conveying type parking device with high applicability |
| CN111715849A (en) * | 2020-06-15 | 2020-09-29 | 共享装备股份有限公司 | Self-locking type sand core marking tool and using method thereof |
| CN112660252B (en) * | 2020-12-29 | 2022-10-04 | 安徽安凯华夏汽车配件制造有限公司 | Steel plate welding type turnover mechanism assembly for motor vehicle cab |
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|---|---|
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