Hydraulic oil cylinder with locking mechanism

Abstract

The utility model discloses a hydraulic oil cylinder with a locking mechanism, which belongs to the technical field of hydraulic equipment and comprises a base, the upper surface of the base is fixedly connected with a cylinder body, the upper surface of the cylinder body is fixedly connected with an end cover, the upper surface of the end cover is provided with a sealing ring, the inside of the sealing ring is movably connected with a hydraulic rod, and the hydraulic rod is movably connected with the locking mechanism. A hydraulic rod is fixedly connected to the upper end of the base, a top seat is fixedly connected to the upper end of the hydraulic rod, protection mechanisms are fixedly connected to the two sides of the top seat, sealing cylinders are fixedly connected to the two sides of the upper surface of the base, and locking mechanisms are fixedly connected to the two sides of the base. By arranging the protection mechanism and the locking mechanism, the adjusting bolt is rotated to drive the sealing plug to enter and block the air outlet of the sealing cylinder, so that the position of the protection piston in the sealing cylinder can be firmly fixed, the top seat is locked, and it is ensured that the top seat cannot move accidentally in the working process; and the safety and durability of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic equipment technical field especially relates to a hydraulic cylinder with locking mechanism. BACKGROUND

[0002] Hydraulic cylinder is the hydraulic energy conversion mechanical energy, do linear reciprocating motion's hydraulic actuator, its simple structure, reliable work, when with it to realize reciprocating motion, can dispense with the speed reducer, and there is no transmission gap, movement is stable, therefore obtains the wide application in the hydraulic system of various machines.

[0003] Part of traditional hydraulic cylinder lacks locking mechanism, in the absence of locking mechanism, hydraulic cylinder cannot firmly keep the piston rod in a certain position, once the hydraulic system loses pressure or is interfered by outside, the piston rod can be displaced due to gravity, inertia or other external force, thereby influence the stability and accuracy of equipment, in addition, in the case where it is required to keep a certain working position for a long time, it can cause security risks to the operating personnel or surrounding equipment, in order to solve the above problems, the utility model provides a hydraulic cylinder with locking mechanism. UTILITY MODEL CONTENTS

[0004] The utility model discloses a hydraulic cylinder with locking mechanism, which solves the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A hydraulic cylinder with locking mechanism, comprising a base, the upper surface of the base is fixedly connected with a cylinder body, the upper surface of the cylinder body is fixedly connected with an end cover, the upper surface of the end cover is provided with a sealing ring, the inside of the sealing ring is movably connected with a hydraulic rod, the upper end of the hydraulic rod is fixedly connected with a top seat, the two sides of the top seat are fixedly connected with a protection mechanism, the two sides of the upper surface of the base are fixedly connected with a sealing cylinder, the lower end of one side of the sealing cylinder is fixedly connected with an air outlet, and the two sides of the base are fixedly connected with a locking mechanism.

[0007] As a further improvement of the utility model, the protection mechanism comprises a fixed rod fixedly connected on the two sides of the top seat, the lower surfaces of the opposite ends of the two fixed rods are fixedly connected with a movable rod, the lower surface of the movable rod is fixedly connected with a protection piston, and the protection piston is movably connected to the sealing cylinder.

[0008] As a further improvement of the utility model, the locking mechanism comprises a mounting plate fixedly connected on the two sides of the base, a threaded hole is formed in one side of the mounting plate, an adjusting bolt matched with the threaded hole is threadedly connected to one side of the mounting plate, and the end of the adjusting bolt is fixedly connected with a sealing plug matched with the air outlet.

[0009] As a further improvement of the utility model, the lower end of the hydraulic rod is fixedly connected with a hydraulic piston, and the hydraulic piston is movably connected to the cylinder body.

[0010] As a further improvement of the utility model, the upper surface of the end cover is fixedly connected with damping buffers on both sides, and the upper end of each of the two damping buffers is fixedly connected with a buffer plate.

[0011] As a further improvement of the utility model, the upper end of the surface of the cylinder body is fixedly connected with a first adjusting pipe, and the lower end of the surface of the cylinder body is fixedly connected with a second adjusting pipe.

[0012] The utility model has the advantages of:

[0013] By setting the protection mechanism and locking mechanism, when in use, the hydraulic oil in the cylinder body is adjusted through the first adjusting pipe and the second adjusting pipe, and then the top base is driven to the required working position, and in the process of moving upward, the fixed rod and the movable rod are connected, so that the protection piston can move synchronously in the sealing cylinder, and the coordinated movement between the top base and the protection piston is ensured, when the top base moves to the target height, the sealing plug is driven into and blocks the air outlet of the sealing cylinder by rotating the adjusting bolt, the position of the protection piston in the sealing cylinder is fixedly fixed, so that the top base is locked, the locking mechanism is simple and effective, and accidental movement of the top base during work can be ensured, and the locking operation is realized by rotating the adjusting bolt again to move the sealing plug out of the air outlet, the fixing of the top base is released, and subsequent height adjustment or equipment maintenance is facilitated.

[0014] By setting the damping buffer, when the top base descends to the lowest point, the damping buffer on the upper surface of the end cover and the buffer plate can provide effective buffering effect, prevent the top base from being damaged or causing personal injury due to accidental impact, so that the device not only improves the durability of the equipment, but also ensures the safety of the operator.

[0015] In summary, the utility model has the advantages of flexibility and accuracy of height adjustment, reliability of locking and unlocking mechanism, enhancement of safety protection and rationality of structural design, etc. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a hydraulic cylinder with locking mechanism structure schematic view.

[0017] Figure 2 The utility model provides a hydraulic cylinder with locking mechanism disassembly structure schematic view.

[0018] Figure 3The utility model provides a kind of locking mechanism of hydraulic cylinder with locking mechanism's structure schematic diagram.

[0019] Figure 4 The utility model provides a kind of locking mechanism of hydraulic cylinder with locking mechanism's cross section structure schematic diagram.

[0020] In the drawing: 1 base, 2 cylinder body, 3 end cover, 4 sealing ring, 5 hydraulic rod, 6 top seat, 7 sealing cylinder, 8 gas outlet, 9 fixed rod, 10 movable rod, 11 protective piston, 12 mounting plate, 13 adjusting bolt, 14 sealing plug, 15 hydraulic piston, 16 damping buffer, 17 buffer plate, 18 first adjusting pipe, 19 second adjusting pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] REFERENCE Figures 1-4 A kind of hydraulic cylinder with locking mechanism, including base 1, the upper surface of base 1 is fixedly connected with cylinder body 2, the upper surface of cylinder body 2 is fixedly connected with end cover 3, the upper surface of end cover 3 is equipped with sealing ring 4, the inside of sealing ring 4 is movably connected with hydraulic rod 5, the upper end of hydraulic rod 5 is fixedly connected with top seat 6, the both sides of top seat 6 are fixedly connected with protective mechanism, the both sides of the upper surface of base 1 are fixedly connected with sealing cylinder 7, the lower end of one side of sealing cylinder 7 is fixedly connected with gas outlet 8, the both sides of base 1 are fixedly connected with locking mechanism.

[0023] In the utility model, protective mechanism includes fixed rod 9 fixedly connected in the both sides of top seat 6, the lower surface of opposite end of two fixed rods 9 is fixedly connected with movable rod 10, the lower surface of movable rod 10 is fixedly connected with protective piston 11, protective piston 11 is movably connected in sealing cylinder 7, the movement of hydraulic piston 15 is transmitted to top seat 6 by hydraulic rod 5, drives top seat 6 to rise synchronously, in the process of top seat 6 rising, fixed rod 9 as connecting piece, drive movable rod 10 and protective piston 11 move synchronously in sealing cylinder 7, locking mechanism includes mounting plate 12 fixedly connected in the both sides of base 1, the side of mounting plate 12 is equipped with threaded hole, the side of mounting plate 12 is threadedly connected with adjusting bolt 13 matched with threaded hole, the end of adjusting bolt 13 is fixedly connected with sealing plug 14 matched with gas outlet 8, rotating adjusting bolt 13, sealing plug 14 is moved to the gas outlet 8 of sealing cylinder 7 by thread connection, until sealing plug 14 completely enters the gas outlet 8 and blocks sealing cylinder 7, so that the inside of sealing cylinder 7 forms closed space, to fix the position of protective piston 11 in sealing cylinder 7, reach the purpose of locking top seat 6.

[0024] The lower end of the hydraulic rod 5 is fixedly connected with a hydraulic piston 15, the hydraulic piston 15 is movably connected to the cylinder body 2, the upper surface of the end cover 3 is fixedly connected with a damping buffer 16 on both sides, the upper end of the two damping buffers 16 is fixedly connected with a buffer plate 17, the upper end of the surface of the cylinder body 2 is fixedly connected with a first adjusting pipe 18, the lower end of the surface of the cylinder body 2 is fixedly connected with a second adjusting pipe 19, by operating the first adjusting pipe 18 and the second adjusting pipe 19, the appropriate hydraulic oil is injected or discharged to the inside of the cylinder body 2, the operation changes the hydraulic pressure in the inside of the cylinder body 2, so as to drive the hydraulic piston 15 to move upwards along the inner wall of the cylinder body 2.

[0025] The utility model uses, first through the first adjusting pipe 18 and the second adjusting pipe 19 adjust the hydraulic oil in the inside of cylinder body 2, so as to drive the hydraulic piston 15 to move upwards along the inner wall of the cylinder body 2, the hydraulic piston 15 drives the abutment 6 to move through the hydraulic rod 5, the abutment 6 moves upwards and is driven movable rod 10 and protection piston 11 in sealing cylinder 7 synchronous movement through fixed rod 9, the abutment 6 moves to the target height and rotates the adjusting bolt 13 and drives sealing plug 14 to move to the air outlet 8 of sealing cylinder 7, until sealing plug 14 enters the air outlet 8 and blocks sealing cylinder 7, so as to make protection piston 11 be fixed in sealing cylinder 7, reach the purpose of locking abutment 6, finally again rotate the adjusting bolt 13 and drive sealing plug 14 to move out of the air outlet 8 and remove the sealing of sealing cylinder 7, so as to remove the fixation of abutment 6, start the hydraulic rod 5 and move downwards, the damping buffer 16 and buffer plate 17 on the upper surface of end cover 3 can buffer when abutment 6 drops to the lowest point.

[0026] The above, only for the specific embodiment of the utility model of the preferred, but the protection scope of the utility model does not limit to this, any skilled in the art person in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept of the utility model are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. A hydraulic cylinder with a locking mechanism, comprising a base (1), characterized in that, A cylinder (2) is fixedly connected to the upper surface of the base (1). An end cap (3) is fixedly connected to the upper surface of the cylinder (2). A sealing ring (4) is provided on the upper surface of the end cap (3). A hydraulic rod (5) is movably connected inside the sealing ring (4). A top seat (6) is fixedly connected to the upper end of the hydraulic rod (5). A protective mechanism is fixedly connected to both sides of the top seat (6). A sealing cylinder (7) is fixedly connected to both sides of the upper surface of the base (1). An air outlet (8) is fixedly connected to the lower end of one side of the sealing cylinder (7). A locking mechanism is fixedly connected to both sides of the base (1).

2. A hydraulic cylinder with a locking mechanism according to claim 1, characterized in that, The protective mechanism includes fixed rods (9) fixedly connected to both sides of the top seat (6). Movable rods (10) are fixedly connected to the lower surfaces of opposite ends of the two fixed rods (9). A protective piston (11) is fixedly connected to the lower surface of the movable rod (10). The protective piston (11) is movably connected to the sealing cylinder (7).

3. A hydraulic cylinder with a locking mechanism according to claim 1, characterized in that, The locking mechanism includes a mounting plate (12) fixedly connected to both sides of the base (1). A threaded hole is provided on one side of the mounting plate (12). An adjusting bolt (13) adapted to the threaded hole is threadedly connected to one side of the mounting plate (12). A sealing plug (14) adapted to the air outlet (8) is fixedly connected to one end of the adjusting bolt (13).

4. A hydraulic cylinder with a locking mechanism according to claim 1, characterized in that, The lower end of the hydraulic rod (5) is fixedly connected to a hydraulic piston (15), which is movably connected to the cylinder body (2).

5. A hydraulic cylinder with a locking mechanism according to claim 1, characterized in that, Damping buffers (16) are fixedly connected to both sides of the upper surface of the end cap (3), and buffer plates (17) are fixedly connected to the upper ends of the two damping buffers (16).

6. A hydraulic cylinder with a locking mechanism according to claim 1, characterized in that, The upper end of the surface of the cylinder (2) is fixedly connected to a first adjusting pipe (18), and the lower end of the surface of the cylinder (2) is fixedly connected to a second adjusting pipe (19).

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