CN217049936U - Locking device for hydraulic driving mechanism - Google Patents

Abstract

The utility model relates to a locking device for hydraulic drive mechanism, including support two, be provided with the locking pneumatic cylinder that the level was placed on the support two, fixedly connected with tapered end is served in the flexible of locking pneumatic cylinder, and the one end of tapered end is articulated through the flexible end of round pin axle with the locking pneumatic cylinder, is close to and is fixed with the socket on the support two of broken bridging device, and open at the middle part of socket has the jack that runs through the socket with tapered end matched with, and the tapered end can pass the jack, is reciprocating motion in the jack, is fixed with the hasp with tapered end matched with on the device of corresponding hydraulic drive mechanism below. The utility model discloses simple structure, the practicality is strong, has avoided the pneumatic cylinder to last the pressurize for a long time, keeps the pulling force to lead to the pneumatic cylinder to damage, and then the device falls under receiving the action of gravity, has increased the security and the stability of equipment.

Description

Locking device for hydraulic driving mechanism

Technical Field

The utility model belongs to the technical field of hydraulic pressure mechanism is fixed, a locking device for hydraulic drive mechanism is related to.

Background

The hydraulic cylinder driving device is a very common technical means for realizing reciprocating motion in the prior art, when the hydraulic cylinder is vertically arranged and the driving device reciprocates up and down, if the hydraulic cylinder stops working and the device is heavier, the hydraulic cylinder always has a vertical downward acting force under the action of gravity, and the hydraulic cylinder correspondingly has upward pulling force so as to keep balance without falling. However, it is difficult to maintain the pressure and the tensile force of the hydraulic cylinder for a long time, and the upward tensile force is reduced due to the natural pressure relief inside the hydraulic cylinder, so that the device falls down due to the gravity, which may cause a danger. Therefore, the problem that when the hydraulic cylinder which is vertically arranged does not run, the hydraulic cylinder naturally falls down to influence safety and the like is urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a locking device for a hydraulic drive mechanism, which can solve the above problems.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a locking device for hydraulic drive mechanism, including support two, be provided with the locking pneumatic cylinder that the level was placed on the support two, fixedly connected with tapered end on the flexible end of locking pneumatic cylinder, the one end of tapered end is articulated through the flexible end of round pin axle with the locking pneumatic cylinder, be close to broken bridging device and be fixed with the socket on the support two, open at the middle part of socket has the jack that runs through the socket with tapered end matched with, the tapered end can pass the jack, reciprocating motion is in the jack, be fixed with the hasp with tapered end matched with on the device of corresponding hydraulic drive mechanism below.

Furthermore, a switch mounting frame is fixed on a second support of the side portion of the socket, mounting holes distributed in the front and at the back are formed in the switch mounting frame, the two mounting holes are located on the same horizontal line, a locking in-place switch and a locking in-place switch are respectively fixed in the mounting holes, and a sensing piece matched with the locking in-place switch and the locking in-place switch is fixed on the lock head.

Further, the mounting hole is a horizontal long round mounting hole.

Furthermore, the locking in-position switch and the locking out-of-position switch are respectively electrically connected with the controller.

Furthermore, the locking hydraulic cylinder is electrically connected with the controller.

Furthermore, the lock head is strip-shaped.

Furthermore, the upper edge of the free end of the lock head is provided with a chamfer.

The beneficial effects of the utility model reside in that:

the utility model discloses simple structure, the practicality is strong, has avoided the pneumatic cylinder to last the pressurize for a long time, keeps the pulling force to lead to the pneumatic cylinder to damage, and then the device receives the action of gravity and falls down, has increased the security and the stability of equipment.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a refuse incineration feeding system;

FIG. 2 is a schematic view of the feed hopper;

FIG. 3 is a front view of the bridge breaker mounted within the feed hopper;

FIG. 4 is a top view of the bridge breaker mounted within the feed hopper;

FIG. 5 is a schematic structural diagram of a bridging device and a locking device of the feed hopper;

FIG. 6 is a front view of the locking device;

FIG. 7 is a top view of the locking device;

FIG. 8 is a front view of the receptacle;

FIG. 9 is a top view of the socket;

FIG. 10 is a schematic view of the chute and the seal isolation means within the chute;

FIG. 11 is a cross-sectional view of the junction of the isolation door and the swing arm;

FIG. 12 is an enlarged view of the seal isolator;

FIG. 13 is an enlarged partial view at the rocker arm;

FIG. 14 is a partially enlarged view of a bottom coupling structure of the sealing cylinder;

FIG. 15 is a front view of the chute and seal isolation apparatus;

fig. 16 is a control system diagram of the present system.

Reference numerals:

100. a feed hopper; 110. a front wall; 120. a rear wall; 121. a guide strip; 122. a limiting plate; 123. a high level gauge; 200. a chute; 210. sealing the door space; 220. a low level indicator; 230. opening a switch; 240. closing the switch; 300. a feeder; 400. a bridge breaking device; 410. a frame body; 411. a hammer head; 412. a first guide groove; 413. a first cover plate; 414. a guide wheel; 415. a second cover plate; 416. locking; 417. the broken frame moves back to the position switch; 418. the broken frame enters the position switch; 420. a frame breaking hydraulic cylinder; 421. a hydraulic cylinder support I; 422. breaking a bridge and hydraulically driving a reversing valve; 500. a locking device; 510. a second support; 520. locking a hydraulic cylinder; 530. a lock head; 531. an induction sheet; 540. a socket; 541. a jack; 550. a switch mounting bracket; 551. mounting holes; 560. locking the in-position switch; 570. locking the return switch; 580. locking a hydraulic drive reversing valve; 600. sealing the isolation device; 610. an isolation gate; 620. a swing shaft; 630. a rocker arm; 640. sealing the hydraulic cylinder; 650. sealing the hydraulically driven reversing valve; 700. a protection plate; 800. and a controller.

Detailed Description

The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "front", "back", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes, and should not be construed as limitations of the present invention, and it will be understood that specific meanings of the above terms can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 16, a feeding system for waste incineration sequentially comprises a feeding hopper 100, a chute 200 and a feeder 300 from top to bottom, wherein the feeding hopper 100 is of an inverted bell mouth structure and has a large top and a small bottom, the chute 200 is a rectangular tube, and the upper end of the chute 200 is fixedly connected with the bottom of the feeding hopper 100 through a flange. The chute 200 is divided into an upper section and a lower section, and the chute 200 is fixedly connected with each other through an expansion joint. The feeder 300 comprises a feeding platform and a feeding trolley above the feeding platform, the feeding trolley is positioned at the outlet of the chute 200, the feeding trolley reciprocates on the feeding platform, and the garbage falling from the chute 200 is continuously and safely conveyed to a fire grate for incineration. The feed trolley is controlled by the controller 800.

The feeding hopper 100 includes a front wall 110 and a rear wall 120, the front wall 110 being a slant surface, and the rear wall 120 being a vertical surface. The inner side wall of the rear wall 120 is provided with a bridging device 400, and the bridging device 400 can break the bridge between the feed hopper 100 and the chute 200.

The frame breaking and bridging device 400 comprises a vertically arranged frame body 410, the frame body 410 is of a rectangular frame structure, the lower end of the frame body 410 is provided with a hammer head 411 integrated with the frame body, and in order to guarantee the frame breaking effect, the hammer head 411 is of a triangular structure with the tip end facing downwards. The frame body 410 is connected with the telescopic end of the frame breaking hydraulic cylinder 420, and the frame breaking hydraulic cylinder 420 drives the frame body 410 to realize up-and-down reciprocating motion, so that a bridge breaking effect is realized. Broken vertical setting and the flexible end of a hydraulic cylinder 420 of putting up are down, and broken upper end of a hydraulic cylinder 420 is fixed on hydraulic cylinder support one 421, and hydraulic cylinder support one 421 is fixed on rear wall 120 up end, and the tip of hydraulic cylinder support one 421 stretches out behind the outside of rear wall 120 and articulates with broken hydraulic cylinder 420. The frame breaking hydraulic cylinder 420 extends into the frame body 410 and then the telescopic end thereof is fixedly connected with the lower end of the interior of the frame body 410. The frame breaking hydraulic cylinder 420 is connected with the controller 800.

The preferred breaking hydraulic cylinders 420 are provided in a pair, and the breaking hydraulic cylinders 420 are symmetrically provided with respect to the center line of the frame body 410.

In order to prevent the frame body 410 from swinging left and right, the side wall of the frame body 410 opposite to the rear wall 120 is provided with a first vertically extending guide groove 412, the corresponding rear wall 120 is fixed with a guide strip 121 matched with the first guide groove 412, the guide strip 121 is also vertically arranged, preferably, the first guide groove 412 is provided with a pair and is symmetrically arranged relative to the central line of the frame body 410, and the same guide strip 121 is also provided with a pair.

The outer side of the frame body 410, where the breaking hydraulic cylinder 420 is arranged, is provided with a detachable cover plate one 413, and the cover plate one 413 can be opened for operation when the breaking hydraulic cylinder 420 is installed or overhauled.

In order to prevent the upper end of the frame body 410 from being inclined, a limiting plate 122 is fixed to the rear wall 120 on the left and right sides of the frame body 410, the limiting plate 122 is disposed parallel to the rear wall 120, the corresponding end of the frame body 410 is located between the limiting plate 122 and the rear wall 120, and a second guide groove of the frame body 410 is formed between the rear wall 120 and the limiting plate 122. In order to reduce the friction force of the vertical movement of the frame body 410, a pair of guide wheels 414 located on the same horizontal line are respectively fixed on the upper portions of the left and right side walls of the frame body 410, and the two guide wheels 414 are respectively in contact with the rear wall 120 and the limiting plate 122 to realize rolling friction. In order to facilitate the installation and maintenance of the guide wheel 414, a second cover plate 415 is arranged on the outer side wall of the frame body 410 at a position corresponding to the guide wheel 414, the second cover plate 415 can be detached, and the installation and maintenance of the guide wheel 414 are realized at the second cover plate 415.

When the bridge is released or no bridge is formed, the bridge-breaking device 400 needs to be pulled to the highest point by the bridge-breaking hydraulic cylinder 420 so as not to influence the feeding of the feeding hopper 100, at this time, the vertical downward acting force is always generated on the bridge-breaking device 400 under the action of gravity, and the bridge-breaking hydraulic cylinder 420 correspondingly has upward pulling force to keep the bridge-breaking device balanced and not to fall down. However, it is difficult to maintain the pressure and maintain the tension of the frame-breaking hydraulic cylinder 420 for a long time, and the frame-breaking device 400 falls down due to gravity because the upward tension is reduced due to natural pressure relief inside the frame-breaking hydraulic cylinder 420. Therefore, to solve the problem that the feeding hopper 100 is affected by the natural falling of the bridging device 400 when the bridging device 400 is not in operation, a locking device 500 needs to be designed to fix the bridging device 400 at the highest position of the feeding hopper 100.

The locking device 500 is provided on the upper end surface of the rear wall 120 at the center line position of the frame body 410. The locking device 500 comprises a second support base 510, a locking hydraulic cylinder 520 horizontally placed is arranged on the second support base 510, and the locking hydraulic cylinder 520 is electrically connected with the controller 800. The telescopic end of the locking hydraulic cylinder 520 faces the bridge-breaking device 400 and is perpendicular to the frame body 410 of the bridge-breaking device 400, and the telescopic end of the locking hydraulic cylinder 520 is fixedly connected with a long lock 530. One end of the lock head 530 is hinged with the telescopic end of the locking hydraulic cylinder 520 through a pin shaft. A socket 540 is fixed on the second support 510 close to the bridging device 400, a plug hole 541 which is matched with the lock 530 and penetrates through the socket 540 is formed in the middle of the socket 540, and the lock 530 can penetrate through the plug hole 541 and reciprocate in the plug hole 541.

A lock catch 416 matched with the lock head 530 is fixed in the middle of the upper end face of the frame body 410 of the corresponding bridge-breaking device 400. The cross-section of the lock catch 416 is an inverted L-shaped structure that opens toward the lock head 530. The locking head 530 can be inserted into the lock catch 416. To facilitate insertion of the locking head 530 into the catch 416, the upper edge of the free end of the locking head 530 is chamfered.

A switch mounting rack 550 is fixed on a second support 510 at the side of the socket 540, mounting holes 551 distributed in the front and back are formed in the switch mounting rack 550, the mounting holes 551 are horizontal long round mounting holes, the two mounting holes 551 are on the same horizontal line, a locking in-place switch 560 and a locking out-of-place switch 570 are respectively fixed in the mounting holes 551, the locking in-place switch 560 and the locking out-of-place switch 570 are respectively position sensors, a sensing piece 531 matched with the locking in-place switch 560 and the locking out-of-place switch 570 is fixed on the lock head 530, when the sensing piece 531 reaches the locking in-place switch 560, the locking hydraulic cylinder 520 stops extending, and when the sensing piece 531 reaches the locking out-of-place switch 570, the locking hydraulic cylinder 520 stops retracting. The lock-in position switch 560 and the lock-out position switch 570 are electrically connected to the controller 800, respectively.

The locking in-position switch 560 can limit the insertion of the lock head 530 into the lock catch 416, and the locking requirement is met. The locking in-place switch 570 requires the locking head 530 to completely withdraw from the locking buckle 416 without causing interference to the operation of the bridge-breaking device 400.

An arc-shaped protection plate 700 is fixed above the locking device 500 and the first hydraulic cylinder support 421, and the protection plate 700 is used for preventing impurities such as garbage and dust from entering the locking device 500 and the first hydraulic cylinder support 421.

A sealing and isolating device 600 is arranged at the joint of the feed hopper 100 and the chute 200, and the sealing and isolating device 600 is used for realizing the isolation of the inside and the outside of the incinerator when the household garbage incinerator is started and stopped and does not receive garbage.

The seal isolation apparatus 600 includes a rotatable isolation door 610, the isolation door 610 being located within the chute 200 at the junction of the feed hopper 100 and the chute 200, the isolation door 610 being adapted to completely cover the junction of the feed hopper 100 and the chute 200. The rear end of isolating gate 610 is fixed on rocking shaft 620, and the both ends of rocking shaft 620 wear out respectively behind the chute 200 with the one end fixed connection of rocking arm 630, the other one end of rocking arm 630 is articulated with the flexible end of sealed hydraulic cylinder 640, the base of sealed hydraulic cylinder 640 passes through the fixing base to be fixed on the lateral wall of chute 200, the base of sealed hydraulic cylinder 640 is articulated with the fixing base. The expansion and contraction of the sealing hydraulic cylinder 640 drives the rocker arm 630 to rotate, and the swinging angle just accords with the opening angle of the sealing door. The sealing cylinder 640 is connected to the controller 800.

The junction of the swing shaft 620 and the chute 200 is sealed by shaft end seal plates and seal strips.

The inside rear side of chute 200 is provided with sealing door space 210 that is used for holding the sealing door, and when the sealing door was opened completely, the sealing door guaranteed falling smoothly of rubbish in a vertical plane with the rear side wall of chute 200.

If the chute 200 is long, a plurality of isolation doors 610 can be arranged to be connected in the middle, and sealing strips are fixed at the joints of the isolation doors 610 and the isolation doors 610 for sealing. The connection between the isolation door 610 and the swing shaft 620 of the isolation door 610 is fixedly connected by a fixed connection.

The sealing isolation door 610 is provided with an isolation door limiting device, and the corresponding positions on the side wall of the chute 200 are respectively provided with a sealing in-position switch and a sealing out-position switch. The sensing block matched with the seal in-position switch and the seal out-position switch is arranged on the rocker 630 and rotates together with the rocker 630 along with the extension and contraction of the seal hydraulic cylinder 640. When the rocker 630 and the sensing block rotate to the position of the seal in-place switch or the seal out-of-place switch, the switch outputs a carry signal or an out-of-place signal to the controller 800, the controller 800 stops supplying oil, and the seal hydraulic cylinder 640 stops acting, so that the isolation door 610 is kept in an open state or a closed state.

In order to realize the automatic control of the system, a fixed high level indicator 123 is arranged at a position close to the lower end of the feeding hopper 100, the high level indicator 123 is connected with the controller 800, the high level indicator 123 detects feeding, and when the garbage storage position reaches the position, a high level material signal is output to remind that external incoming materials can be stopped to enter the feeding hopper 100. Otherwise, when the stored garbage falls to be lower than the high material level, a high material level material-free signal is output, and the high material level material-free is displayed.

Meanwhile, a low material level meter 220 is arranged at the middle position in the chute 200 connected with the feed hopper 100, the low material level meter 220 is connected with the controller 800, when the garbage storage position falls below the position, a low material level no-material signal is output, and the alarm is given to supplement fuel as soon as possible. Otherwise, when the stored garbage is higher than the low material level, a low material level material signal is output, and the low material level material is displayed.

The frame breaking and bridging device 400 is provided with a frame breaking and returning position switch 417 which is fixed at the upper end of the rear wall 120 of the feed hopper 100 and is connected with the controller 800, the frame breaking and bridging device 400 is mainly detected to return to the position by the frame breaking and bridging device 417 serving as an initial position of the frame breaking and bridging device 400, a signal is output to the controller 800 after the frame breaking and bridging device 400 returns to the position, and the controller 800 controls the frame breaking hydraulic cylinder 420 to stop oil supply. The frame breaking hydraulic cylinder 420 is also connected with a bridge breaking hydraulic drive reversing valve 422, and the bridge breaking hydraulic drive reversing valve 422 is connected with the controller 800.

The rack-breaking and bridging device 400 is provided with a rack-breaking and bridging-in switch 418, which is fixed in the middle of the rear wall 120 of the feed hopper 100 and mainly detects whether the rack-breaking and bridging device 400 is in place, and the rack-breaking and bridging-in switch 418 is electrically connected with the controller 800. After the frame-breaking bridge-erecting device 400 is in place, the frame-breaking frame-entering position switch 418 outputs a signal to the controller 800, and the controller 800 controls the frame-breaking hydraulic cylinder 420 to stop advancing oil supply.

The locking hydraulic cylinder 520 is connected with a locking hydraulically driven directional valve 580, and the locking hydraulically driven directional valve 580 is electrically connected with the controller 800. The locking hydraulic pressure drives the reversing valve 580, and when the controller 800 receives that the locking device 500 enters the right position or retreats to stop the locking hydraulic cylinder 520 to supply oil, the oil supply direction is changed, namely, forward oil supply is performed originally, and backward oil supply is performed after the direction is changed, or vice versa.

The isolation door 610 of the isolation device 600 is provided with an opening switch 230 and a closing switch 240, and the opening switch 230 and the closing switch 240 are electrically connected to the controller 800. The sealed hydraulic cylinder 640 is also connected to a sealed hydraulically actuated directional valve 650, and the sealed hydraulically actuated directional valve 650 is electrically connected to the controller 800.

The opening switch 230 is used as an initial position of the isolation door 610, mainly detects that the isolation door 610 completely opens the connection channel between the feed hopper 100 and the chute 200, and outputs a signal (an opening signal of the isolation door 610) to the controller 800 to stop the oil supply of the sealing hydraulic cylinder 640.

The switch 240 is closed, the isolation door 610 is mainly detected to completely close the connection passage between the feed hopper 100 and the chute 200, and a signal (the isolation door 610 closing signal) is output to the controller 800 to stop the oil supply of the sealing hydraulic cylinder 640.

The sealing hydraulic drive reversing valve 650, as a hydraulic system, receives that the isolation door 610 is completely opened or closed, after the oil supply is stopped, the oil supply direction is changed, the oil supply is carried out forward originally, and the oil supply is carried out backward after the oil supply direction is changed, or vice versa.

The working principle of the invention is as follows:

whether the feed hopper 100 and the chute 200 are bridged or not is judged, and two conditions exist.

Firstly, the isolation door 610 is opened, and when the low level indicator 220 detects a material signal, the feed hopper 100 is not bridged; when the low level indicator 220 detects no material and the high level indicator 123 detects material, the bridge is judged to be a bridge, which is called a bridge signal; when the low level indicator 220 detects no material and the high level indicator 123 detects no material, alarming for feeding is needed.

Secondly, the isolating door 610 is closed, and when the low level indicator 220 detects no material and the high level indicator 123 detects material, the bridging cannot be judged.

Can be described simply as: the isolation gate 610 opens signal + low level indicator 220 no material signal + high level indicator 123 material signal ═ bridging signal. The low level indicator 220 has a material signal and the bridging signal is released.

A control method for starting a broken bridge.

First, if a bridging signal occurs, and at this time, there are a backing-to-position signal of the bridging device 400 and a backing-to-position signal of the locking device 500, it is necessary to first activate the locking device 500 to unlock until the backing-to-position signal of the locking device 500 occurs.

Can be described simply as: the bridging signal + the bridge-breaking device 400 retreats to the position signal + the locking device 500 enters to the position signal, and the locking device 500 is started to unlock.

Secondly, when a signal indicating that the locking device 500 is in the position and a signal indicating that the sealing door is opened exists, the bridging device 400 starts to move downwards and insert garbage at the position of the extrusion bridging position until the signal indicating that the bridging device 400 is in the position, the device starts to retreat, the device 400 retreats to the position and starts to advance again, and the process is repeated until the bridging signal is eliminated.

Can be described simply as: the bridging signal, the locking device 500 retreating to the position signal and the sealing door opening signal, and the bridging breaking device 400 starts the bridge breaking until the bridging signal is removed.

Thirdly, after the bridging signal is released and the bridging breaking device 400 is withdrawn to the right position, the locking device 500 advances until the locking device 500 reaches the right position, and the surface bridging breaking device 400 is locked.

Can be simply described as: the non-bridging signal + the bridging device 400 retreats to the position signal, and the locking device 500 advances to lock the bridging device 400.

The seal isolation apparatus 600 is closed and a signal of the locking apparatus 500 is received.

In addition to automatic detection, a manually activated bridge-breaking device 400 may be provided in the event that the seal-isolating device 600 is opened.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A locking device for a hydraulic drive mechanism, characterized by: including support two (510), be provided with locking pneumatic cylinder (520) that the level was placed on support two (510), fixedly connected with tapered end (530) is served in the flexible of locking pneumatic cylinder (520), the one end of tapered end (530) is articulated through the flexible end of round pin axle with locking pneumatic cylinder (520), be close to and be fixed with socket (540) on support two (510) of broken bridging device (400), open at the middle part of socket (540) has jack (541) that runs through socket (540) with tapered end (530) matched with, jack (541) can be passed in tapered end (530), do reciprocating motion in jack (541), be fixed with on the device of corresponding hydraulic drive mechanism below with tapered end (530) matched with hasp (416).

2. A locking device for a hydraulic drive mechanism according to claim 1, wherein: a switch mounting rack (550) is fixed on a second support seat (510) on the side of the socket (540), mounting holes (551) distributed front and back are formed in the switch mounting rack (550), the two mounting holes (551) are on the same horizontal line, a locking in-place switch (560) and a locking out-of-place switch (570) are respectively fixed in the mounting holes (551), and a sensing piece (531) matched with the locking in-place switch (560) and the locking out-of-place switch (570) is fixed on the lock head (530).

3. A locking device for a hydraulic drive mechanism according to claim 2, wherein: the mounting hole (551) is a horizontal long round mounting hole (551).

4. A locking device for a hydraulic actuating mechanism according to claim 2, characterized in that: the locking in-position switch (560) and the locking out-position switch (570) are respectively electrically connected with the controller (800).

5. A locking device for a hydraulic actuating mechanism according to claim 1, characterized in that: the locking hydraulic cylinder (520) is electrically connected with the controller (800).

6. A locking device for a hydraulic drive mechanism according to claim 1, wherein: the lock head (530) is strip-shaped.

7. A locking device for a hydraulic actuating mechanism according to claim 1, characterized in that: the upper edge of the free end of the lock head (530) is provided with a chamfer.

Images