HGC hydraulic cylinder locking block push-pull device and HGC hydraulic cylinder

Abstract

The utility model provides an HGC hydraulic cylinder locking block push-and-pull device and HGC hydraulic cylinder, including two push-and-pull mechanisms oppositely arranged on both sides of the HGC hydraulic cylinder, each push-and-pull mechanism includes an installation assembly, a spacing assembly and a push-and-pull assembly, the installation assembly has an installation space, the installation assembly is used for being connected to the HGC hydraulic cylinder, the spacing assembly is used for spacing the installation space, and the push-and-pull assembly is used for spacing the spacing assembly and the push-and-pull assembly. A locking block of the HGC hydraulic cylinder is arranged in the installation space, the first end of the push-pull assembly is connected with the installation assembly, the second end of the push-pull assembly is used for being connected with the locking block, the push-pull assembly is arranged in a telescopic mode, and the limiting assembly is rotatably connected to the installation assembly. In this way, when the push-pull assembly pushes the locking block and the limiting assembly rotates into the installation space to abut against the locking block, the locking block is in a locked state. When the limiting assembly rotates to the outside of the mounting space and the push-pull assembly pulls the locking block, the locking block is in a pull-out state; and the locking block is convenient to release, the disassembly procedure of the rusted bolt is omitted, and the maintenance time is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of HGC hydraulic cylinder replacement, in particular to an HGC hydraulic cylinder locking block push-pull device and an HGC hydraulic cylinder. Background Art

[0002] The HGC locking block of the hot slab continuous casting and rolling mill is used to suspend the HGC hydraulic cylinder. This hydraulic cylinder is generally supported by the support roller bearing seat. Only when the machine is shut down for roll change or maintenance, the entire HGC hydraulic cylinder will fall onto the locking block and be suspended. Therefore, replacing the HGC roll gap adjustment hydraulic cylinder is a major project, which takes more than 12 hours.

[0003] Because it is installed on the top of the rolling mill arch, the special tooling for adjusting and replacing the hydraulic cylinder must first be placed on the corresponding support roll changing bench. After manually operating the cylinder on the tooling to rise and support the HGC hydraulic cylinder, the 12 M30 fixing bolts in the 4 locking blocks of the two cylinders are manually removed. During disassembly, due to the long replacement cycle and continuous water vapor fumigation, the thread pair is severely rusted. At the same time, due to the limited working space and great construction difficulty, it is time-consuming and laborious. After pulling it out and unlocking it, the HGC cylinder can be put down and pulled out of the rolling mill arch together with the tooling.

[0004] In view of this, it is necessary to propose a HGC hydraulic cylinder locking block push-pull device and an HGC hydraulic cylinder to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a HGC hydraulic cylinder locking block push-pull device to solve the problem of long, time-consuming and labor-intensive replacement cycle of disassembling and assembling the locking block in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a push-pull device for a locking block of an HGC hydraulic cylinder, comprising two push-pull mechanisms for being relatively arranged on both sides of the HGC hydraulic cylinder; wherein,

[0007] Each of the push-pull mechanisms comprises a mounting assembly, a limit assembly and a push-pull assembly, wherein the mounting assembly has a mounting space, the mounting assembly is used to be connected to the HGC hydraulic cylinder, and the locking block of the HGC hydraulic cylinder is arranged in the mounting space;

[0008] The first end of the push-pull assembly is connected to the mounting assembly, the second end of the push-pull assembly is used to connect to the locking block, and the push-pull assembly is telescopically arranged in the longitudinal direction;

[0009] The limiting assembly is rotatably connected to the mounting assembly; wherein,

[0010] When the push-pull assembly pushes the locking block, and when the limiting assembly rotates into the installation space and abuts against the locking block, the locking block is in a locked state; when the limiting assembly rotates out of the installation space, and the push-pull assembly retracts and pulls the locking block, the locking block is in a pulled-out state.

[0011] Preferably, the installation assembly is a bracket, the bracket is in a U shape, the open end of the bracket is used to be connected to the HGC hydraulic cylinder, and the open end of the bracket abuts against both lateral sides of the locking block.

[0012] Preferably, the limiting assembly includes two check blocks oppositely arranged along the transverse direction. Both lateral sides of the bracket protrude outward to form ear seats. Wherein, each check block includes a limiting portion and a connecting portion. The limiting portion is used to abut against the locking block, and a connecting hole penetrating through in the longitudinal direction is formed on the connecting portion. The check block is rotatably connected to the bracket through a pin shaft penetrating through the connecting hole and the ear seat.

[0013] Preferably, the push-pull assembly includes a directional control valve and an oil cylinder. The directional control valve is fixed on the bracket. The directional control valve is connected to the oil cylinder through a hose. The oil cylinder is arranged in the installation space. The connecting end of the oil cylinder is connected to the bracket, and the driving end of the oil cylinder is connected to the locking block.

[0014] Preferably, a fixing rod is further included. Both ends of the fixing rod protrude downward to form pin studs. A blind hole is recessed inward at the top of each check block. The two check blocks form an interlocking structure by inserting the pin studs of the fixing rod into the blind holes.

[0015] Preferably, one end of the fixing rod extends and protrudes beyond the pin stud.

[0016] Preferably, one end of the limiting portion is used to abut against the locking block, and the other end of the limiting portion abuts against the bracket.

[0017] Preferably, a first ear plate protrudes inward along the longitudinal direction towards the installation space inside the end of the bracket far from the locking block, and a second ear plate protrudes inward along the longitudinal direction towards the installation space on the locking block. The connecting end of the oil cylinder is rotatably connected to the first ear plate, and the driving end of the oil cylinder is rotatably connected to the second ear plate.

[0018] The present application also provides an HGC hydraulic cylinder, which includes a hydraulic cylinder body, a suspension block, a fixed frame, and two locking blocks. The suspension block is connected to the top of the hydraulic cylinder body. At the bottoms of both longitudinal ends of the suspension block, recesses are formed for the locking blocks to abut against. The fixed frame is connected to both ends of the suspension block. The fixed frame is provided with a card slot through which the locking blocks penetrate. The locking blocks are L-shaped, and the locking blocks longitudinally and movably penetrate through the card slot to abut against the recesses. It also includes the HGC hydraulic cylinder locking block push-pull device as described above. The installation component of the HGC hydraulic cylinder locking block push-pull device is connected to the fixed frame. The push-pull component of the HGC hydraulic cylinder locking block push-pull device is connected to the locking block. The limiting component of the HGC hydraulic cylinder locking block push-pull device is arranged to abut against the locking block.

[0019] Preferably, on both longitudinal sides of the fixed frame, column pins are convexly provided outward. Through holes for the column pins to penetrate are provided on the locking blocks.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] The HGC hydraulic cylinder locking block push-pull device and the HGC hydraulic cylinder provided by the present utility model include two push-pull mechanisms oppositely arranged on both sides of the HGC hydraulic cylinder. Each push-pull mechanism includes an installation component, a limiting component, and a push-pull component. The installation component has an installation space. The installation component is used to be connected to the HGC hydraulic cylinder. The locking block of the HGC hydraulic cylinder is arranged in the installation space. The first end of the push-pull component is connected to the installation component. The second end of the push-pull component is used to be connected to the locking block. And the push-pull component is longitudinally telescopically arranged. The limiting component is rotatably connected to the installation component. Thus, when the push-pull component pushes the locking block, and the limiting component rotates into the installation space and abuts against the locking block, the locking block is in a locked state; when the limiting component rotates outside the installation space, and the push-pull component retracts and pulls the locking block, the locking block is in a pulled-out state; it is convenient to release the locking block, thus eliminating the disassembly process of severely rusted bolts, greatly reducing the maintenance man-hours, and significantly reducing the labor intensity. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 It is a three-dimensional schematic diagram of the locked state of the overall structure in an embodiment of the present utility model;

[0024] Figure 2 Partial enlarged schematic view of the pulled-out state of the overall structure in an embodiment of the present utility model;

[0025] Figure 3 Partial enlarged schematic view of the pulled-out state of the overall structure from another perspective in an embodiment of the present utility model;

[0026] Figure 4 Stereoscopic schematic view of a bracket in an embodiment of the present utility model;

[0027] Figure 5 Stereoscopic schematic view of a fixing rod in an embodiment of the present utility model;

[0028] Figure 6 Stereoscopic schematic view of a check block in an embodiment of the present utility model.

[0029] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings.

[0030] Explanation of the reference numerals in the drawings:

[0031] 10. Installation assembly; 110. Bracket; 111. Installation space; 112. Ear seat; 113. First ear plate; 20. Limiting assembly; 210. Check block; 211. Limiting part; 212. Connecting part; 213. Blind hole; 220. Fixing rod; 221. Pin; 30. Pushing and pulling assembly; 310. Directional control valve; 320. Oil cylinder; 40. HGC hydraulic cylinder; 410. Hydraulic cylinder body; 420. Suspension block; 421. Groove; 430. Fixed frame; 431. Card slot; 432. Stud; 440. Locking block; 441. Second ear plate. Specific embodiments

[0032] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] Please refer to the attached Figure 1-6 , a pushing and pulling device for the locking block 440 of the HGC hydraulic cylinder 40 in an embodiment provided by the present utility model includes two pushing and pulling mechanisms that are relatively arranged on both sides of the HGC hydraulic cylinder 40. First of all, it should be noted that the longitudinal direction in this application refers to the length direction of the installation component 10 (the movement direction of the locking block 440), and the transverse direction refers to the width direction of the installation component 10. Specifically, please refer to the indication in the attached drawings; different from the prior art where 12 M30 fixing bolts of the 4 locking blocks of two hydraulic cylinders need to be manually disassembled, during disassembly, due to the long replacement cycle and continuous steam fumigation, the thread pair is severely corroded. At the same time, due to the limited working space and great construction difficulty, it is time-consuming and laborious. This application solves the above defects in the prior art by setting a pushing and pulling device for the locking block of the HGC hydraulic cylinder, specifically as follows:

[0037] Each of the pushing and pulling mechanisms includes an installation component 10, a limiting component 20, and a pushing and pulling component 30. The installation component 10 has an installation space 111. The installation component 10 is used to connect to the HGC hydraulic cylinder 40, and the locking block 440 of the HGC hydraulic cylinder 40 is arranged in the installation space 111; the first end of the pushing and pulling component 30 is connected to the installation component 10, the second end of the pushing and pulling component 30 is used to connect to the locking block 440, and the pushing and pulling component 30 is arranged to be longitudinally telescopic; the limiting component 20 is rotatably connected to the installation component 10; wherein, when the pushing and pulling component 30 pushes the locking block 440 and the limiting component 20 rotates into the installation space 111 and abuts against the locking block 440, the locking block 440 is in a locked state; when the limiting component 20 rotates outside the installation space 111 and the pushing and pulling component 30 retracts and pulls the locking block 440, the locking block 440 is in a pulled-out state.

[0038] Specifically, the push-pull device for the locking block 440 of the HGC hydraulic cylinder 40 in the present application includes two push-pull mechanisms to respectively press the two locking blocks 440 on the HGC hydraulic cylinder 40 to achieve the locking effect. Therefore, the two push-pull mechanisms are respectively disposed opposite to each other on both sides of the HGC hydraulic cylinder 40 to correspond to the positions of the locking blocks 440; and each push-pull mechanism includes a mounting assembly 10, a limiting assembly 20, and a push-pull assembly 30. The mounting assembly 10 is used for mounting the limiting assembly 20 and the push-pull assembly 30, so it has a mounting space 111 for mounting inside. Thus, after the limiting assembly 20 and the push-pull assembly 30 are mounted in the mounting space 111, in order to facilitate direct action on the locking block 440, the mounting assembly 10 is connected to the HGC hydraulic cylinder 40 so that the locking block 440 is also located in the mounting space 111; and the push-pull assembly 30 is used to drive the locking block 440 to switch between locking and withdrawing, so it is longitudinally telescopically arranged. Thus, the first end of the push-pull assembly 30 is used for mounting on the mounting assembly 10, and the second end of the push-pull assembly 30 is used for connecting to the locking block 440 to serve as a driving end to drive the movement; the limiting assembly 20 is used to further limit the loosening of the locking block 440 after the locking block 440 is locked to ensure the locking effect. It is rotatably connected to the mounting assembly 10 so as to rotate into the mounting space 111 for limiting when locking is required, and rotate out of the mounting space 111 to disengage the limiting effect when the locking block 440 needs to be pulled out.

[0039] Among them, after the hydraulic cylinder body 410 is in place, the push-pull assembly 30 is controlled to push the locking block 440. After the locking block 440 is pushed in place, the limiting assembly 20 is rotated into the mounting space 111 to be abutted against the locking block 440, thereby serving as a guarantee for further limiting the locking of the locking block 440. At this time, the locking block 440 is in a locked state, and the hydraulic cylinder body 410 is firmly connected; and when it is necessary to release the connection of the hydraulic cylinder body 410, first rotate the limiting assembly 20 to flip out of the mounting space 111, and then control the push-pull assembly 30 to retract and pull the locking block 440. After the locking block 440 is disengaged from the contact with the hydraulic cylinder body 410, at this time the locking block 440 is in a pulled-out state, and the hydraulic cylinder body 410 can be freely pulled out.

[0040] As a preferred embodiment of the present utility model, the mounting assembly 10 is a bracket 110. The bracket 110 is in a gate shape. The open end of the bracket 110 is used for connecting to the HGC hydraulic cylinder 40, and the open end of the bracket 110 abuts against both lateral sides of the locking block 440.

[0041] It should be noted that the gantry bracket 110 is convenient to be installed on the HGC hydraulic cylinder 40 and occupies a small space. Its open end can be just conveniently arranged on both sides of the locking block 440 and abutted against it, so as to also play a certain limiting effect in the horizontal direction. Among them, in a preferred embodiment of the present application, a flange is further protruded outward from the open end of the bracket 110, so as to facilitate the installation of the bracket 110 on the HGC hydraulic cylinder 40 by means of bolt connection.

[0042] As a preferred embodiment of the present utility model, the limiting assembly 20 includes two check blocks 210 arranged oppositely along the transverse direction. Ear seats 112 are protruded outward from both sides of the bracket 110 along the transverse direction. Among them, the check block 210 includes a limiting portion 211 and a connecting portion 212. The limiting portion 211 is used for abutting against the locking block 440. A connecting hole penetrating along the longitudinal direction is opened on the connecting portion 212. The check block 210 is rotatably connected to the bracket 110 by a pin shaft penetrating the connecting hole and the ear seat 112.

[0043] It should be noted that two check blocks 210 are provided to facilitate the synchronous limiting effect from both sides, and the limiting and locking effect is better. Therefore, the two check blocks 210 are arranged oppositely along the transverse direction on the bracket 110 to facilitate the rotation of the check blocks 210. Ear seats 112 are arranged outside both sides of the bracket 110 to facilitate rotation after being penetrated and connected by a pin shaft. The check block 210 includes a limiting portion 211 and a connecting portion 212. The limiting portion 211 is used for abutting against the locking block 440, and the connecting portion 212 is used for connecting with the ear seat 112 by a pin shaft, so as to adjust the position of the limiting portion 211 after rotational connection.

[0044] As a preferred embodiment of the present utility model, the pushing and pulling assembly 30 includes a reversing valve 310 and an oil cylinder 320. The reversing valve 310 is fixed on the bracket 110. The reversing valve 310 is connected to the oil cylinder 320 through a hose. The oil cylinder 320 is arranged in the installation space 111. The connecting end of the oil cylinder 320 is connected to the bracket 110, and the driving end of the oil cylinder 320 is connected to the locking block 440.

[0045] It should be noted that the oil cylinder 320 serves as a power source for driving the pushing and pulling of the locking block 440, and the reversing valve 310 is used to change the flow direction of the hydraulic oil in the oil cylinder 320, so as to realize the switching of the pushing / pulling of the oil cylinder 320. Therefore, the oil cylinder 320 and the reversing valve 310 are connected by a hose (not shown in the figure). Among them, the oil cylinder 320 is arranged in the installation space 111 so as to directly act on the locking block 440 to push and pull the locking block 440 longitudinally. Its connecting end is connected to the bracket 110 for installation and fixation, and the driving end is connected to the locking block 440 for driving the locking block 440 to move.

[0046] As a preferred embodiment of the present invention, it further includes a fixing rod 220. At both ends of the fixing rod 220, there are downwardly protruding pins 221 formed. At the top of each check block 210, there is a blind hole 213 formed by inward depression. The two check blocks 210 are inserted into the blind holes 213 through the pins 221 of the fixing rod 220 to form an interlocking structure.

[0047] It should be noted that the fixing rod 220 is used to fix the check block 210 when the check block 210 plays a limiting role to prevent the check block 210 from flipping. At both ends of the fixing rod 220, there are downwardly protruding pins 221 formed. After being inserted into the two check blocks 210 simultaneously through the insertion connection method, the two check blocks 210 form an interlocking structure with each other, so as to ensure that the check block 210 will not rotate by itself. Therefore, a blind hole 213 can be opened on the check block 210 to facilitate the insertion of the pin 221.

[0048] Furthermore, one end of the fixing rod 220 extends and protrudes beyond the pin 221.

[0049] It should be noted that when it is necessary to flip out the check block 210, since the operating space in the installation space 111 is small, the fixing rod 220 can also be used as a flipping tool. Just extend one end of the fixing rod 220 and protrude it beyond the pin 221 (that is, extend one end, for details, please refer to the appendix Figure 5 ), so when flipping the check block 210, insert the extended end into the blind hole 213 of the check block 210 and use the lever principle to assist in flipping, which is time-saving and labor-saving.

[0050] Furthermore, one end of the limiting portion 211 is used to abut against the locking block 440, and the other end of the limiting portion 211 abuts against the bracket 110.

[0051] It should be understood that in this way, the two ends of the limiting portion 211 abut against the locking block 440 and the bracket 110 respectively at the head and tail, and there is no gap in the longitudinal direction, and the limiting effect is better.

[0052] Further, a first ear plate 113 is formed by protruding longitudinally toward the installation space 111 inside one end of the bracket 110 away from the locking block 440. A second ear plate 441 is formed by protruding longitudinally toward the installation space 111 on the locking block 440. The connecting end of the oil cylinder 320 is rotatably connected to the first ear plate 113, and the driving end of the oil cylinder 320 is rotatably connected to the second ear plate 441.

[0053] It should be noted that the two ends of the oil cylinder 320 are rotatably connected by means of the ear plates, so that it can adaptively change according to the actual situation during driving, thus avoiding structural deformation. Therefore, the first ear plate 113 is used for the oil cylinder 320 to be rotatably connected inside the bracket 110, and the second ear plate 441 is used for the oil cylinder 320 to be rotatably connected to the locking block 440.

[0054] The present application also provides an HGC hydraulic cylinder 40, including a hydraulic cylinder body 410, a suspension block 420, a fixed frame 430 and two locking blocks 440. The suspension block 420 is connected to the top of the hydraulic cylinder body 410. Grooves 421 for the locking blocks 440 to abut against are formed by recessing the bottoms of both longitudinal ends of the suspension block 420. The fixed frame 430 is connected to both ends of the suspension block 420. A clamping groove 431 for the locking blocks 440 to penetrate through is formed in the fixed frame 430. The locking blocks 440 are L-shaped, and the locking blocks 440 longitudinally movably penetrate through the clamping groove 431 to abut in the grooves 421. It also includes the HGC hydraulic cylinder 40 locking block 440 pushing and pulling device as described above. The installation component 10 of the HGC hydraulic cylinder 40 locking block 440 pushing and pulling device is connected to the fixed frame 430. The pushing and pulling component 30 of the HGC hydraulic cylinder 40 locking block 440 pushing and pulling device is connected to the locking block 440. The limiting component 20 of the HGC hydraulic cylinder 40 locking block 440 pushing and pulling device is arranged to abut against the locking block 440.

[0055] It should be noted that the hanging block 420 is used to hang the hydraulic cylinder body 410. The locking block 440 passes through the fixed frame 430 and abuts against the hanging block 420 to clamp and lock the hydraulic cylinder body 410. Therefore, a clamping groove 431 needs to be opened on the fixed frame 430 for the long end of the L-shaped locking block 440 to pass through. When in the locked state, the locking block 440 passes through and extends out of the clamping groove 431 and then abuts against the groove 421 of the hanging block 420. During installation, first fix the bracket 110 on the fixed frame 430 with bolts at positions corresponding to both sides of the locking block 440. Then connect the oil cylinder 320 to the first ear plate 113 of the bracket 110 and the second ear plate 441 of the locking block 440 with pin shafts respectively. Next, install the reversing valve 310 on the top of the bracket 110 and connect it to the oil cylinder 320 with a hose. Finally, install the check block 210 at the ear seat 112 of the bracket 110 with a pin shaft to complete the installation.

[0056] Furthermore, column pins 432 are convexly provided on both longitudinal sides of the fixed frame 430, and through holes for the column pins 432 to pass through are opened on the locking block 440.

[0057] It can be understood that the column pins 432 can bear the acting forces in the vertical direction and the horizontal and transverse directions, strengthening the structural connection. Preferably, three column pins 432 arranged at intervals in the transverse direction can be provided, and those skilled in the art can choose according to the actual situation.

[0058] For the convenience of those skilled in the art to understand, the operation process is briefly described as follows:

[0059] After the top of the hydraulic cylinder body 410 is inserted into the hanging block 420, the technician toggles the handle of the reversing valve 310 to make the oil cylinder 320 in the advancing state. The oil cylinder 320 pushes the locking block 440, and the locking block 440 is inserted into the groove 421 of the hanging block 420 to apply a locking force. At this time, rotate the check block 210 into the installation space 111 to abut against the locking block 440, and then horizontally insert the fixing rod 220 on the two check blocks 210 to form an interlocking structure. At this time, the locking block 440 is in the locked state. For details, please refer to the appendix Figure 1 ; When disassembly is required, first pull out the fixing rod 220, and turn the two check blocks 210 out of the installation space 111 through the fixing rod 220. At this time, the technician reversely toggles the handle of the reversing valve 310 to make the oil cylinder 320 in the retracting state. The oil cylinder 320 retracts and pulls the locking block 440, and the locking block 440 is pulled out of the groove 421 of the hanging block 420. At this time, the locking block 440 is in the pulled-out state. For details, please refer to the appendix Figure 2 .

[0060] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A HGC hydraulic cylinder locking block push-pull device, characterized in that: It includes two push-pull mechanisms that are arranged on both sides of the HGC hydraulic cylinder; wherein, Each of the push-pull mechanisms comprises a mounting assembly, a limit assembly and a push-pull assembly, wherein the mounting assembly has a mounting space, the mounting assembly is used to be connected to the HGC hydraulic cylinder, and the locking block of the HGC hydraulic cylinder is arranged in the mounting space; The first end of the push-pull assembly is connected to the mounting assembly, the second end of the push-pull assembly is used to connect to the locking block, and the push-pull assembly is telescopically arranged in the longitudinal direction; The limiting assembly is rotatably connected to the mounting assembly; wherein, When the push-pull assembly pushes the locking block and the limiting assembly rotates into the installation space and abuts against the locking block, the locking block is in a locked state; when the limiting assembly rotates out of the installation space and the push-pull assembly retracts and pulls the locking block, the locking block is in a pulled-out state.

2. The HGC hydraulic cylinder locking block push-pull device according to claim 1, characterized in that: The mounting assembly is a bracket, and the bracket is in a door shape. The open end of the bracket is used to be connected to the HGC hydraulic cylinder, and the open end of the bracket is supported on both sides of the locking block along the lateral direction.

3. The HGC hydraulic cylinder locking block push-pull device according to claim 2, characterized in that: The limit assembly includes two check blocks arranged opposite to each other in the transverse direction, and the bracket has ears protruding outward on both sides in the transverse direction, wherein the check block includes a limit portion and a connecting portion, the limit portion is used to be arranged to abut against the locking block, and the connecting portion is provided with a connecting hole that penetrates in the longitudinal direction, and the check block is rotatably connected to the bracket by a pin shaft penetrating the connecting hole and the ear seat.

4. The HGC hydraulic cylinder locking block push-pull device according to claim 2, characterized in that: The push-pull assembly includes a reversing valve and an oil cylinder. The reversing valve is fixed on the bracket. The reversing valve is connected to the oil cylinder through a hose. The oil cylinder is arranged in the installation space. The connecting end of the oil cylinder is connected to the bracket. The driving end of the oil cylinder is connected to the locking block.

5. The HGC hydraulic cylinder locking block push-pull device according to claim 3, characterized in that: It also includes a fixing rod, both ends of which are protruding downward to form pins, and the top of each check block is recessed inward to form a blind hole, and the two check blocks are inserted into the blind holes through the pins of the fixing rod to form an interlocking structure.

6. The HGC hydraulic cylinder locking block push-pull device according to claim 5, characterized in that: One end of the fixing rod extends and protrudes from the pin arrangement.

7. The HGC hydraulic cylinder locking block push-pull device according to claim 3, characterized in that: One end of the limiting portion is used to be disposed against the locking block, and the other end of the limiting portion is disposed against the bracket.

8. The HGC hydraulic cylinder locking block push-pull device according to claim 4, characterized in that: A first ear plate is formed inside one end of the bracket away from the locking block and protrudes longitudinally toward the installation space, and a second ear plate is formed inside the locking block and protrudes longitudinally toward the installation space. The connecting end of the cylinder is rotatably connected to the first ear plate, and the driving end of the cylinder is rotatably connected to the second ear plate.

9. An HGC hydraulic cylinder, comprising a hydraulic cylinder body, a suspension block, a fixed frame and two locking blocks, wherein the suspension block is connected to the top of the hydraulic cylinder body, the bottoms of both ends of the suspension block in the longitudinal direction are recessed to form grooves for the locking blocks to abut against, the fixed frame is connected to both ends of the suspension block, the fixed frame is provided with a card slot for the locking blocks to pass through, the locking block is L-shaped, and the locking block can movably pass through the card slot in the longitudinal direction to abut against the groove, characterized in that: It also includes the HGC hydraulic cylinder locking block push-pull device as described in any one of claims 1 to 8, wherein the mounting component of the HGC hydraulic cylinder locking block push-pull device is connected to the fixed frame, the push-pull component of the HGC hydraulic cylinder locking block push-pull device is connected to the locking block, and the limiting component of the HGC hydraulic cylinder locking block push-pull device is arranged to abut against the locking block.

10. The HGC hydraulic cylinder according to claim 9, characterized in that: Both sides of the fixing frame along the longitudinal direction are provided with column pins protruding outwards, and the locking block is provided with a through hole for the column pin to pass through.

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