Forward and reverse rotation hydraulic mechanical lock

Abstract

The utility model discloses a forward and reverse rotation hydraulic mechanical lock, relates to the technical field of agricultural machinery, and aims to solve the problem that the processing efficiency is affected due to oil leakage and pressure loss of an oil cylinder. The telescopic oil cylinder further comprises an oil cylinder body, a connecting piece and an oil cylinder cover, the oil cylinder body is a shell with two through ends, the connecting piece is arranged at the right end of the oil cylinder body, and the end face of the connecting piece is in threaded connection with the oil cylinder cover. The opening pin and the fixing mechanism are arranged at the position of the telescopic oil cylinder, the clamp buckle spring abuts against the outer wall of the clamp buckle in the using process, the oil cylinder lock pin shaft is fixed, normal use of the oil cylinder lock pin shaft in the using process is guaranteed, and the oil cylinder lock pin shaft is prevented from shaking in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a forward and reverse hydraulic mechanical lock. Background Art

[0002] According to Chinese patent CN202123038265.5, a hydraulic cutter forward and reverse mechanism is disclosed, and the technology adopted by the hydraulic cutter includes a cutter reversing shaft, the outer side of the cutter reversing shaft is connected to a reversing conjoined sprocket through a bearing, the left end of the reversing conjoined sprocket is a boss-shaped structure, and the outer side of the reversing conjoined sprocket is connected to a reversing spinning wheel fixing plate through a bearing, the reversing spinning wheel fixing plate is evenly provided with reversing conversion pins, one side of the boss of the reversing conjoined sprocket is provided with a connecting groove corresponding to the reversing conversion pin, the outer side of the reversing conjoined sprocket is connected to a reversing inner tooth through a bearing, and one side of the reversing inner tooth is provided with a reversing pin corresponding to the reversing pin A connecting groove corresponding to the pin, a telescopic cylinder is provided at the right end of the cutting platform reversal shaft, and an idler fixing plate is fixed to the left end of the telescopic cylinder through a locating pin, and an idler pinion shaft is evenly fixed on the idler fixing plate, and an idler pinion shaft is provided with an idler pinion meshing with the reversal internal teeth, and an outer gear ring meshing with the idler pinion is provided on the outer side of the reversal coupled sprocket gear, the outer side of the left end of the telescopic cylinder is connected to an inner fixing plate through a linear bearing, and the outer side of the inner fixing plate is connected to a reversal housing through bolts, and the left end of the reversal housing is connected to a reversal sliding plate through bolts, and one side of the reversal sliding plate is provided with a side fixed to a reversal spinning wheel fixing plate.

[0003] Although the above technical solution solves the problem that when the peanut pulp blocks the bridge of the cutting platform, it must be stopped immediately and cleaned manually, it is found in the process of industrial production that the oil cylinder will leak oil and lose pressure, which affects the processing efficiency.

[0004] Therefore, the present application provides a forward and reverse hydraulic mechanical lock to meet the demand. Utility Model Content

[0005] The purpose of the present application is to provide a forward and reverse hydraulic mechanical lock, aiming to solve the problem of oil leakage and pressure loss in the oil cylinder, which affects the processing efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a forward and reverse hydraulic mechanical lock, comprising a reverse shaft, the left end of the reverse shaft is arranged on the processing equipment through a fixing part, the reverse shaft is provided with a coupled sprocket, the right side of the coupled sprocket is provided with a spinning wheel fixing plate, and the spinning wheel fixing plate is installed with a spinning wheel through bolts; the right section of the reverse shaft is slidably connected with the fixing plate, the left end face of the fixing plate is rotatably connected with the pinion through the pinion shaft, and the left side of the pinion is provided with an inner gear ring meshing with the pinion, a sliding plate is slidably connected between the inner gear ring and the spinning wheel fixing plate, a steering pin is provided on the sliding plate, and the steering pin and the spinning wheel fixing plate are both provided with a connecting groove adapted to the inner gear ring, the telescopic cylinder is connected to the reverse cover shell by bolts, and the reverse cover shell is connected to the sliding plate by bolts; the connecting groove on the inner gear ring, the connecting groove on the spinning wheel fixing plate, and the connecting groove on the coupled sprocket are all arc-shaped;

[0007] The telescopic oil cylinder also includes an oil cylinder body, a connecting piece, and an oil cylinder cover. The oil cylinder body is a shell with two ends transparent, and a connecting piece is provided at the right end of the oil cylinder body, and the oil cylinder cover is installed on the end surface of the connecting piece. The oil cylinder body is slidably connected with the reversing shaft.

[0008] A cylinder piston and a cylinder lock pin shaft are slidably connected in the cylinder body, the cylinder piston is connected to the cylinder lock pin shaft, and the cylinder lock pin shaft is slidably connected in the connecting piece, cylinder joints are provided on the outer walls of the cylinder body and the cylinder lock pin shaft, an opening pin is slidably connected between the connecting piece and the cylinder joint, a fixing mechanism is provided in the connecting piece, and the fixing mechanism and the opening pin are slidably connected.

[0009] Preferably, the oil cylinder joint comprises a forward rotation joint and a reverse rotation joint, and the opening pin is slidably connected between the reverse rotation joint and the oil cylinder lock pin shaft.

[0010] Preferably, the end face of the connecting piece is provided with a groove, the middle part of the groove is provided with a through hole connected to the inside of the cylinder body, the cylinder lock pin shaft is slidably connected in the through hole and the groove, a movable hole is provided on the inner wall of the groove, the top of the movable hole is threadedly connected with the reversing joint, the inside of which is slidably connected with the opening pin, a pre-tightening hole is provided next to the movable hole, and a fixing mechanism is provided in the pre-tightening hole.

[0011] Preferably, the opening pin includes a top screw, a spring, and a steel ball. The opening pin is slidably connected in the movable hole, and the opening pin is a through hole that is interconnected up and down. A steel ball is slidably connected in the through hole, and the inner wall of the through hole is provided with an oil hole connected to the outside. The top of the through hole is threadedly connected with the top screw, the spring is pressed between the steel ball and the top screw, and a hole is provided in the middle of the top screw, and the bottom of the opening pin is slidably connected to the fixing mechanism.

[0012] Preferably, the fixing mechanism includes a pliers buckle, a pliers buckle spring, and a blind plug. The pliers buckle also includes a left pliers body and a right pliers body. The bottom inner wall of the groove is provided with a fixing groove. The fixing groove is a C-shaped structure, and there are two groups of fixing grooves that are symmetrically arranged. The ends of the left pliers body and the right pliers body are hinged in the fixing grooves, and the blind plug is threadedly connected to the pre-tightening hole. The pliers buckle spring is pressed between the blind plug and the pliers buckle, and the opposite surface of the pliers buckle is slidably connected to the cylinder lock pin shaft.

[0013] Preferably, the pliers buckle is an eight-shaped pliers, and the left pliers body and the right pliers body are arc-shaped parts. The top opposite surfaces of the left pliers body and the right pliers body are provided with a V-shaped opening, which cooperates with the bottom end of the opening pin to assist in opening the fixing mechanism, so that the fixing mechanism cancels the limit on the cylinder lock pin shaft.

[0014] In summary, the technical effects and advantages of the utility model are:

[0015] The utility model provides an opening pin and a fixing mechanism at the telescopic oil cylinder. During use, the clamp buckle spring abuts against the outer wall of the clamp buckle to fix the oil cylinder lock pin shaft, so as to ensure the normal use of the oil cylinder lock pin shaft during use and avoid the oil cylinder lock pin shaft from shaking during use. When it is necessary to switch the forward and reverse directions, oil is introduced from the reversing joint and the opening pin is squeezed so that the opening pin pushes the fitting state of the left clamp body and the right clamp body apart, the clamp buckle rotates in the fixing groove and the clamp buckle spring is squeezed to cancel the limit of the oil cylinder lock pin shaft, and the hydraulic oil is discharged from the oil hole to push the oil cylinder piston to the left, thereby moving the telescopic oil cylinder. The oil cylinder drives the sliding plate to move to the right through the fixedly connected reversal cover, so that the steering pin leaves the connecting groove of the coupled sprocket and is connected to the connecting groove of the inner gear ring to achieve reversal; conversely, oil is supplied from the forward rotation joint to push the above structure to the right, and the opening pin moves upward, and the caliper body spring re-fixes the oil cylinder lock pin shaft through the caliper buckle. The above-mentioned reversal cover drives the sliding plate to move to the left through the movement of the telescopic oil cylinder, and the steering pin leaves the connecting groove of the inner gear ring and is re-connected to the connecting groove of the coupled sprocket to achieve forward rotation. The above-mentioned structure ensures that the connected machinery can perform normal forward and reverse movements.

[0016] Furthermore, a screw is provided at the tail of the cylinder lock pin shaft and a thread is provided at the head of the reversing shaft, the cylinder piston is connected as one, and the reversing shaft is fixed to the vehicle body by screws, and it is stationary when in use; when the cylinder is inletted with oil and the oil is returned, the (cylinder body, reversing cover, reversing sliding plate, and reversing steering pin) are displaced 10 mm left and right to achieve forward and reverse rotation; the pliers usually lock the cylinder lock pin shaft, and there will be no non-action or malfunction caused by external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The structure diagram of the utility model is Figure 1 ;

[0019] Figure 2 The schematic diagram of the structure of the connector of the utility model is Figure 1 ;

[0020] Figure 3 The schematic diagram of the structure of the connector of the utility model is Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model in the forward rotation state;

[0022] Figure 5 This is a schematic diagram of the AA cross-sectional structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the enlarged structure of the C position of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the utility model in the reverse state;

[0025] Figure 8 It is a schematic diagram of the BB cross-section structure of the utility model;

[0026] Fig. 9 It is a schematic diagram of the enlarged structure of D of the utility model;

[0027] Fig.10 The schematic diagram of the structure of the utility model Figure 2 ;

[0028] Fig.11 It is a schematic diagram of the opening pin structure of the utility model.

[0029] In the figure: 1, countershaft; 2, conjoined sprocket; 3, steering pin; 4, spinning wheel fixed plate; 5, spinning wheel; 6, sliding plate; 8, inner gear ring; 9, pinion; 10, pinion shaft; 11, fixed plate;

[0030] 12. Forward joint; 13. Cylinder body; 14. Reverse joint; 15. Cylinder cover; 16. Opening pin; 161. Top screw; 162. Spring; 163. Steel ball; 17. Cylinder piston; 18. Cylinder lock pin shaft;

[0031] 21. Reversal cover; 22. Clamp buckle; 23. Clamp buckle spring; 24. Blind plug; 25. Connector; 251. Groove; 252. Perforation; 253. Fixing groove; 254. Movable hole; 255. Pre-tightening hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example: Reference Figure 1-11 The forward and reverse hydraulic mechanical lock shown in the figure comprises a reverse shaft 1, a conjoined sprocket 2, a spinning wheel 5, a reverse cover 21, and a telescopic oil cylinder. The reverse shaft 1 is installed and fixed by a fixing piece provided at the left end. In this embodiment, the reverse shaft 1 mainly serves as a load-bearing piece. A conjoined sprocket 2 (which is rotatably connected to the reverse shaft 1) is provided on the right side of the fixing piece (the reverse shaft 1). The conjoined sprocket 2 is driven by a chain. When the telescopic oil cylinder rotates forward, oil enters the forward joint 12 and oil exits the reverse joint 14. The telescopic oil cylinder drives the sliding plate 6 to move to the left side through the reverse cover 21 fixed by bolts, so that the steering pin 3 on the sliding plate 6 is inserted into the conjoined sprocket 2 and The spinning wheel fixed plate 4 is in the connecting groove, thereby rotating forward under the drive of the chain (in this process, the power transmitted by the chain is sent to the connected equipment through the spinning wheel 5 and the conveyor belt); when reversing is required, the reversing joint 14 is filled with oil, and the forward rotation joint 12 is discharged with oil, and the telescopic cylinder drives the reversing cover 21 to move to the right, so that the steering pin 3 on the sliding plate 6 leaves the connecting groove of the conjoined sprocket 2 and the spinning wheel fixed plate 4, and enters the connecting groove of the inner ring 8. The inner ring 8 rotates on the reversing shaft 1, and changes the rotation direction by meshing with the pinion 9 rotatably connected to the fixed plate 11, thereby realizing reversal, and the fixed plate 11 is rotatably connected to the reversing shaft 1.

[0034] The outer side of the spinning wheel 5 is evenly provided with belt grooves, which are connected to the external input pulley through belts.

[0035] Telescopic oil cylinder: The left end of the oil cylinder body 13 is connected to the reversing cover 21 by bolts, and the reversing shaft 1 is rotatably connected in the holes that communicate with each other on the left and right sides. A positive rotation joint 12 of the oil cylinder joint is provided on the outer wall of the oil cylinder body 13. The positive rotation joint 12 is threadedly connected to the oil cylinder body 13 and is used for oil inlet control. The oil cylinder piston 17 is slidably connected to the oil cylinder body 13. A connecting piece 25 is provided at the right end of the oil cylinder body 13. A groove 251 is provided on the upper end surface of the connecting piece 25, and a through hole 252 communicating with the inside of the oil cylinder body 13 is provided in the middle thereof, and a movable connecting groove 251 is provided on the outer wall of the connecting piece 25. The movable hole 254, the reversing joint 14 threadedly connected on the movable hole 254, cooperates with the forward rotation joint 12 to control the reciprocating motion of the cylinder piston 17 and switch the forward and reverse rotation of the equipment connected thereto. The right end of the connecting piece 25 is threadedly connected to the cylinder cover 15, and a fixing mechanism for fixing the cylinder lock pin shaft 18 is provided in the connecting piece 25. The opening pin 16 that cooperates with the fixing mechanism is slidably connected in the movable hole 254. When the reversing joint 14 is filled with oil, the opening pin 16 presses against the fixing mechanism to release the limit on the cylinder lock pin shaft 18, and the cylinder lock pin shaft 18 is connected to the reversing shaft 1 through the cylinder piston 17.

[0036] Opening pin 16: The opening pin 16 is slidably connected in the movable hole 254, and its top surface is provided with a hole that communicates with each other from top to bottom. The steel ball 163 slidably connected in the hole is limited by the spring 162. The top and bottom surfaces of the spring 162 respectively press against the top surface of the steel ball 163 and the bottom surface of the top screw 161 in the through hole (the inverted joint 14 limits the opening pin 16 in the movable hole 254), thereby limiting the spring 162. The inner wall of the through hole of the opening pin 16 is provided with an oil hole connected to the outside world. The function here is to use During the process, oil is discharged (the hydraulic oil enters from the reversing joint 14, passes through the hole of the top screw 161, pushes the steel ball 163 downward, blocks the hole at the bottom of the opening pin 16, and then drives the opening pin 16 to slide in the movable hole 254. In the process of the opening pin 16 moving downward, the oil hole in the groove 251 is exposed and the fixing mechanism is unlocked, thereby releasing the purpose of the cylinder lock pin shaft 18). When the forward joint 12 is filled with oil, the fixing mechanism is started to push the opening pin 16 back into the movable hole 254.

[0037] Fixing mechanism: During use, when the reversing joint 14 is filled with oil, the opening pin 16 moves downward, and the clamp buckle 22 hinged in the groove 251 is reversed. The left and right clamp bodies at the junction of the two groups of top ends are reversed outward, and their bottom ends rotate in the fixing groove 253 in the groove 251, and squeeze the clamp buckle spring 23 in the pre-tightening hole 255, release the limit on the cylinder lock pin shaft 18, and realize the forward and reverse switching of the equipment. When the forward joint 12 is filled with oil, the cylinder piston 17 is pushed back, driving the cylinder lock pin shaft 18, and the reverse joint 12 is reversed. The oil entering the head 14 becomes less, so the opening pin 16 retreats into the movable hole after the lack of hydraulic oil squeezing, and the tops of the left and right caliper bodies, after the lack of the contact piece (opening pin 16), with the assistance of the caliper buckle spring 23 in the pre-tightening hole 255, re-fix the reset cylinder lock pin shaft 18, and the blind plug wire 24 limits the installation of the caliper buckle spring 23. A control loop is realized through the above structure to prevent malfunction, control the displacement of the cylinder lock pin shaft 18 in the telescopic cylinder, and thus control the equipment to perform forward and reverse operations.

[0038] The working principle of the utility model is as follows: the forward joint 12 and the reverse joint 14 threadedly connected on the telescopic oil cylinder are connected to the oil circuit, which is used to control the reciprocating motion of the oil cylinder piston 17 and the oil cylinder lock pin shaft 18 inside the oil cylinder body 13, so as to achieve the purpose of switching the forward and reverse rotation of the equipment. The oil is supplied through the reverse joint 14, and the hydraulic oil enters the movable hole 254. Through the top screw 161 in the opening pin 16, the hydraulic oil enters the through hole of the opening pin 16 from the hole of the top screw 161 (the hydraulic oil fills the through hole in this process), and pushes the opening pin 16 to move downward. In the process of use, the spring 162 is cooperated to make the steel ball 163 press against the hole at the bottom of the opening pin 16. In the process of the opening pin 16 moving downward, its bottom presses against the top of the clamp buckle 22. The top contact part of the left clamp body and the right clamp body is provided with a V-shaped opening, and its shape Cooperating with the opening pin 16, the auxiliary opening pin 16 separates the pliers 22, and the left and right pliers bodies reverse in the fixed groove 253, and squeezes the pliers spring 23 to release the limit on the cylinder lock pin shaft 18. During the downward movement of the opening pin 16, its oil hole is exposed, allowing the hydraulic oil to enter the inside of the connecting piece 25 from the oil hole, thereby pushing the cylinder piston 17 and the cylinder lock pin shaft 18 to move to the left, and then the moving telescopic cylinder drives the sliding plate 6 to move to the right through the reversing cover 21 connected to it, so that the steering pin 3 on the sliding plate 6 is inserted into the connecting groove of the inner ring 8, thereby driving the inner ring 8 to rotate. The rotating inner ring 8 switches the rotation direction by rotating the multiple sets of pinions 9 connected to the fixed plate 11, and the pinion 9 rotates on the fixed plate 11 through the pinion shaft 10, thereby controlling the reversal of the equipment.

[0039] When oil is introduced into the forward joint 12, the hydraulic oil is discharged from the reverse joint 14, causing the cylinder piston 17 and the cylinder lock pin shaft 18 to move to the right, and the opening pin 16 lacks the push of the hydraulic oil. Under the action of the clamp buckle spring 23, the left clamp body and the right clamp body converge to the middle part, against the outer wall of the cylinder lock pin shaft 18 to achieve fixation. During the above operation, the opening pin 16 is pushed back into the movable hole 254, and the clamp buckle spring 23 is limited by the blind plug wire 24 in the pre-tightening hole 255. At the same time, the telescopic cylinder drives the reverse cover 21 to move to the left, so that the steering pin 3 on the sliding plate 6 leaves the connecting groove of the inner gear ring and is inserted into the connecting groove of the spinning wheel fixing plate 4 and the coupled sprocket gear 2, thereby completing the purpose of switching the steering direction.

[0040] The electromechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0041] Components not described in detail herein are prior art.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A forward and reverse hydraulic mechanical lock, comprising a reverse shaft (1), wherein the left end of the reverse shaft (1) is arranged on a processing device through a fixing member, and wherein: The reversing shaft (1) is provided with a coupled sprocket (2), a spinning wheel fixing plate (4) is provided on the right side of the coupled sprocket (2), and a spinning wheel (5) is mounted on the spinning wheel fixing plate (4) by means of bolts; the right section of the reversing shaft (1) is rotatably connected with a fixing plate (11), the left end face of the fixing plate (11) is rotatably connected with a pinion (9) by means of a pinion shaft (10), and an inner gear ring (8) meshing with the pinion (9) is provided on the left side of the pinion (9), a sliding plate (6) is slidably connected between the inner gear ring (8) and the spinning wheel fixing plate (4), a steering pin (3) is provided on the sliding plate (6), and a connecting groove matching the inner gear ring (8) is provided on the steering pin (3) and the spinning wheel fixing plate (4), the telescopic oil cylinder is connected to a reversing cover (21) by means of bolts, and the reversing cover (21) is connected to the sliding plate (6) by means of bolts; The telescopic oil cylinder further comprises an oil cylinder body (13), a connecting piece (25), and an oil cylinder cover (15); the oil cylinder body (13) is a shell with two ends being transparent, and the right end of the oil cylinder body (13) is provided with a connecting piece (25), and the oil cylinder cover (15) is mounted on the end surface of the connecting piece (25); the oil cylinder body (13) is slidably connected to the reversing shaft (1); A cylinder piston (17) and a cylinder lock pin shaft (18) are slidably connected in the cylinder body (13); the cylinder piston (17) and the cylinder lock pin shaft (18) are connected to each other, and the cylinder lock pin shaft (18) is slidably connected in the connecting member (25); cylinder joints are provided on the outer walls of the cylinder body (13) and the cylinder lock pin shaft (18); an opening pin (16) is slidably connected between the connecting member (25) and the cylinder joint; a fixing mechanism is provided in the connecting member (25); and the fixing mechanism is slidably connected to the opening pin (16).

2. A forward and reverse hydraulic mechanical lock according to claim 1, characterized in that: The oil cylinder joint comprises a forward rotation joint (12) and a reverse rotation joint (14), and the opening pin (16) is slidably connected between the reverse rotation joint (14) and the oil cylinder lock pin shaft (18).

3. A forward and reverse hydraulic mechanical lock according to claim 2, characterized in that: The end surface of the connecting member (25) is provided with a groove (251), the middle part of the groove (251) is provided with a through hole (252) communicating with the inside of the oil cylinder body (13), the oil cylinder lock pin shaft (18) is slidably connected in the through hole (252) and the groove (251), the inner wall of the groove (251) is provided with a movable hole (254), the top of the movable hole (254) is threadedly connected to the reversing joint (14), the inside of which is slidably connected to the opening pin (16), a pre-tightening hole (255) is provided next to the movable hole (254), and a fixing mechanism is provided in the pre-tightening hole (255).

4. A forward and reverse hydraulic mechanical lock according to claim 3, characterized in that: The opening pin (16) comprises a top screw (161), a spring (162), and a steel ball (163); the opening pin (16) is slidably connected in the movable hole (254); the opening pin (16) is a through hole interconnected at the top and bottom; the steel ball (163) is slidably connected in the through hole; the inner wall of the through hole is provided with an oil hole connected to the outside; the top of the through hole is threadedly connected with the top screw (161); the spring (162) is pressed between the steel ball (163) and the top screw (161); a hole is provided in the middle of the top screw (161); and the bottom of the opening pin (16) is slidably connected to the fixing mechanism.

5. A forward and reverse hydraulic mechanical lock according to claim 4, characterized in that: The fixing mechanism comprises a clamp buckle (22), a clamp buckle spring (23), and a blind plug (24); the clamp buckle (22) further comprises a left clamp body and a right clamp body; a fixing groove (253) is provided on the bottom inner wall of the groove (251); the fixing groove (253) is a C-shaped structure, and the fixing grooves (253) are symmetrically arranged in two groups; the ends of the left clamp body and the right clamp body are both hinged in the fixing groove (253), and the blind plug (24) is threadedly connected to the pre-tightening hole (255); the clamp buckle spring (23) is pressed between the blind plug (24) and the clamp buckle (22); and the opposite surface of the clamp buckle (22) is slidably connected to the cylinder lock pin shaft (18).

6. A forward and reverse hydraulic mechanical lock according to claim 5, characterized in that: The clamp buckle (22) is an eight-shaped clamp, and the left clamp body and the right clamp body are both arc-shaped parts.

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