Landing leg hydraulic oil cylinder with plug-in mounting hydraulic lock

Abstract

The utility model discloses a landing leg hydraulic oil cylinder with a plug-in mounting hydraulic lock in the technical field of landing leg hydraulic oil cylinders, which comprises a cylinder body, a piston rod is plugged at the bottom end of the cylinder body, the landing leg hydraulic oil cylinder is characterized in that an anti-retraction mechanism is arranged on the outer side of the cylinder body, a mounting seat is arranged below the cylinder body, a non-slip mat is clamped at the bottom of the mounting seat, and the piston rod is connected with the non-slip mat. The supporting leg hydraulic oil cylinder comprises a cylinder body, a mounting seat is arranged in the cylinder body, a quick release mechanism is arranged in the mounting seat, an anti-retraction mechanism comprises a mounting bin, mounting plates, a two-way screw rod, a motor, a moving plate and a positioning rod, the mounting bin is fixedly connected to the outer side wall of the cylinder body, and the mounting plates are fixedly connected to the front side and the rear side of the left side wall and the right side wall of the mounting bin. The non-slip mat is reasonable in structural design, the situation that the piston rod automatically retracts due to the fact that the piston rod is affected by pressure can be effectively prevented, and replacement work can be rapidly and conveniently completed when the non-slip mat needs to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of outrigger hydraulic cylinder technology, specifically an outrigger hydraulic cylinder with a cartridge hydraulic lock. Background Technology

[0002] Outrigger hydraulic cylinders are used in engineering machinery, construction machinery, mining machinery and other fields, such as mobile cranes and large hydraulic drilling rigs. These devices are usually equipped with outrigger hydraulic cylinders to provide the necessary stability and ensure operational safety and efficiency.

[0003] Existing outrigger hydraulic cylinders lack an effective locking mechanism, which can lead to the outrigger cylinder automatically retracting under pressure during support operations. Furthermore, to increase stability and prevent direct contact with the ground, most existing outrigger hydraulic cylinders are equipped with rubber anti-slip pads. However, these pads are prone to damage and inconvenient to replace. Therefore, we propose an outrigger hydraulic cylinder with a cartridge hydraulic lock. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic cylinder for outriggers with a plug-in hydraulic lock, in order to solve the problem mentioned in the background art that the existing hydraulic cylinders for outriggers lack an effective locking mechanism, which leads to the outriggers automatically retracting when subjected to pressure during support work. In addition, to prevent the outriggers from directly contacting the ground and causing damage during support work, most existing hydraulic cylinders for outriggers are equipped with rubber anti-slip pads. However, rubber anti-slip pads are easily damaged and are inconvenient to replace.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic cylinder for outriggers with a plug-in hydraulic lock, comprising a cylinder body, wherein a piston rod is plugged into the bottom end of the cylinder body, characterized in that an anti-retraction mechanism is provided on the outer side of the cylinder body;

[0006] A mounting base is provided below the cylinder body, and an anti-slip pad is snapped into the bottom of the mounting base. A quick-release mechanism is provided inside the mounting base.

[0007] As a further description of the above technical solution:

[0008] The anti-retraction mechanism includes an installation chamber, an installation plate, a two-way screw, a motor, a moving plate, and a positioning rod.

[0009] As a further description of the above technical solution:

[0010] The mounting chamber is fixedly connected to the outer wall of the cylinder body. Mounting plates are fixedly connected to the left and right side walls and the front and rear sides of the mounting chamber. A bidirectional screw is rotatably connected between the inner side walls of the front and rear mounting plates.

[0011] As a further description of the above technical solution:

[0012] The motor is fixedly connected to the front side wall of the right front mounting plate. The rear end of the motor's power output shaft passes through the right front mounting plate and extends to the rear side wall of the right front mounting plate. The rear end of the motor's power output shaft is fixedly connected to the right bidirectional screw.

[0013] As a further description of the above technical solution:

[0014] The movable plate is screwed to the front and rear sides of the outer side wall of the bidirectional screw on the left and right sides. The inner side wall of the movable plate on the front and rear sides is fixedly connected with a positioning rod, and the end of the positioning rod on the front and rear sides extends into the interior of the piston rod.

[0015] As a further description of the above technical solution:

[0016] The quick-release mechanism includes a mounting slot, a sliding plate, a positioning latch, a pull rod, and a compression spring.

[0017] As a further description of the above technical solution:

[0018] The mounting groove is located on the left side inside the mounting base. A sliding plate is slidably connected to the inner cavity of the mounting groove. A positioning tenon is fixedly connected to the right side wall of the sliding plate. The positioning tenons are arranged sequentially from front to back. The right end of the positioning tenon passes through the anti-slip pad and extends into the interior of the mounting base.

[0019] As a further description of the above technical solution:

[0020] The pull rod is inserted into the left side wall of the mounting base, the right end of the pull rod passes through the mounting base and extends into the inner cavity of the mounting groove, and the right end of the pull rod is fixedly connected to the slide plate. A compression spring is sleeved on the outer side wall of the pull rod.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The outrigger hydraulic cylinder with a plug-in hydraulic lock is driven by a starting motor to rotate the right-side double-acting screw. This causes the front and rear moving plates mounted on the left and right double-acting screws to move closer together with the rotation of the double-acting screws. The positioning rods mounted on the front and rear moving plates move with the front and rear moving plates and insert into the piston rod to limit the piston rod and prevent the piston rod from automatically retracting due to pressure. This effectively prevents the piston rod from automatically retracting due to pressure.

[0023] 2. When replacing a damaged anti-slip pad, the hydraulic cylinder of the outrigger with a plug-in hydraulic lock works by pulling the lever, which moves the slide plate to compress the compression spring. This causes the positioning latch on the slide plate to move into the mounting groove, releasing the anti-slip pad. The anti-slip pad is then removed, and a new anti-slip pad is installed in the mounting base. After releasing the lever, the compression spring, which was compressed by the slide plate, returns to its original position, pushing the pressure plate to move. This causes the positioning latch on the slide plate to fix the replaced anti-slip pad. This allows for quick and convenient replacement of the anti-slip pad whenever needed. Attached Figure Description

[0024] Figure 1 This is a front three-dimensional structural diagram of a hydraulic cylinder for a support leg with a plug-in hydraulic lock proposed in this utility model.

[0025] Figure 2 This is a front sectional view of a hydraulic cylinder with a plug-in hydraulic lock for outriggers, as proposed in this utility model.

[0026] Figure 3 A cross-sectional view of the mounting base for a hydraulic cylinder with a plug-in hydraulic lock proposed in this utility model.

[0027] In the diagram: 100, cylinder block; 110, piston rod; 120, mounting chamber; 121, mounting plate; 122, double-acting screw; 130, motor; 140, moving plate; 141, positioning rod; 200, mounting base; 210, anti-slip pad; 220, mounting groove; 221, sliding plate; 222, positioning latch; 230, pull rod; 231, compression spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] This utility model provides a hydraulic cylinder for outriggers with a cartridge hydraulic lock, which can effectively prevent the piston rod from automatically retracting due to pressure. It also allows for quick and convenient replacement of the anti-slip pad. Please refer to [link / reference]. Figure 1-3 This includes a cylinder block 100 and a mounting base 200;

[0032] Please refer to it again. Figure 1-2A mounting base 200 is provided below the cylinder body 100. Specifically, the mounting base 200 is screwed to the bottom of the cylinder body 100 via a piston rod 110. The piston rod 110 is inserted into the bottom end of the cylinder body 100. The cylinder body 100 is characterized by an anti-retraction mechanism on its outer side. The anti-retraction mechanism includes a mounting chamber 120 for mounting the main structure, and a mounting plate 121 for mounting a bidirectional screw 122. The bidirectional screw 122 is used for... To move the movable plate 140, a motor 130 drives a bidirectional screw 122. The movable plate 140 and a positioning rod 141 are used to position the piston rod 110. The mounting chamber 120 is fixedly connected to the outer wall of the cylinder body 100. Mounting plates 121 are fixedly connected to the left and right side walls and the front and rear sides of the mounting chamber 120. A bidirectional screw 122 is rotatably connected between the inner side walls of the front and rear mounting plates 121. A motor 130 is fixedly connected to the right front... The rear end of the power output shaft of the motor 130 passes through the front side wall of the right front side mounting plate 121 and extends to the rear side wall of the right front side mounting plate 121. The rear end of the power output shaft of the motor 130 is fixedly connected to the right bidirectional screw 122. The moving plate 140 is screwed to the front and rear sides of the outer side wall of the left and right bidirectional screw 122. The inner side wall of the front and rear moving plates 140 is fixedly connected to the positioning rod 141. The ends of the positioning rods 141 extend into the interior of the piston rod 110. By starting the motor 130, the right bidirectional screw 122 is driven to rotate, so that the front and rear moving plates 140 installed on the left and right bidirectional screw 122 move closer together with the rotation of the bidirectional screw 122. The positioning rods 141 installed on the front and rear moving plates 140 move with the front and rear moving plates 140 and insert into the piston rod 110 to limit the piston rod 110 and prevent the piston rod 110 from automatically retracting due to pressure.

[0033] In summary, this effectively prevents the piston rod 110 from automatically retracting due to pressure.

[0034] Please refer to it again. Figure 1-3The bottom of the mounting base 200 is fitted with an anti-slip pad 210. The mounting base 200 has a quick-release mechanism inside, including a mounting groove 220, a sliding plate 221, a mounting positioning latch 222 for fixing the anti-slip pad 210, a pull rod 230, and a compression spring 231. The mounting groove 220 is located on the left side inside the mounting base 200. The sliding plate 221 is slidably connected to the inner cavity of the mounting groove 220. The right side wall of the sliding plate 221 is fixedly connected to the positioning latch 222, which is arranged sequentially from front to back. The right end of the positioning latch 222 passes through the anti-slip pad 210 and extends into the interior of the mounting base 200. The pull rod 230 is inserted into the left side wall of the mounting base 200, and the right end of the pull rod 230 passes through the mounting base 200 and extends into the interior of the mounting base 200. The inner cavity of the groove 220, and the right end of the pull rod 230 is fixedly connected to the slide plate 221. The outer wall of the pull rod 230 is sleeved with a compression spring 231. When replacing the damaged anti-slip pad 210, by pulling the pull rod 230, the pull rod 230 drives the slide plate 221 to move and compress the compression spring 231. Then, the positioning latch 222 installed on the slide plate 221 moves with the slide plate 221 to the mounting groove 220, so that the positioning latch 222 is released from fixing the anti-slip pad 210. Then, the anti-slip pad 210 is removed, and then the new anti-slip pad 210 is installed in the mounting base 200. Then, the pull rod 230 is released to reset the compression spring 231 that was compressed by the slide plate 221 and push the pressure plate to move, so that the positioning latch 222 on the slide plate 221 fixes the replaced anti-slip pad 210.

[0035] In summary, the replacement of the anti-slip mat 210 can be completed quickly and conveniently when needed.

[0036] In practical use, when replacing a damaged anti-slip pad 210, those skilled in the art pull the lever 230 to move the slide plate 221, compressing the compression spring 231. This causes the positioning latch 222 mounted on the slide plate 221 to move into the mounting groove 220, releasing the positioning latch 222 from fixing the anti-slip pad 210. The anti-slip pad 210 is then removed, and a new anti-slip pad 210 is installed into the mounting base 200. Finally, the lever 230 is released, allowing the compression spring 231, which was compressed by the slide plate 221, to return to its normal position. The pressure plate is moved to fix the replaced anti-slip pad 210 in place by the positioning latch 222 on the slide plate 221. The motor 130 drives the right bidirectional screw 122 to rotate, causing the front and rear moving plates 140 installed on the left and right bidirectional screws 122 to move closer together with the rotation of the bidirectional screws 122. The positioning rod 141 installed on the front and rear moving plates 140 moves with the front and rear moving plates 140 and is inserted into the piston rod 110 to limit the piston rod 110 and prevent the piston rod 110 from automatically retracting due to pressure.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hydraulic cylinder for outriggers with a plug-in hydraulic lock, comprising a cylinder body (100), wherein a piston rod (110) is plugged into the bottom end of the cylinder body (100), characterized in that... An anti-retraction mechanism is provided on the outer side of the cylinder body (100); A mounting base (200) is provided below the cylinder body (100), and an anti-slip pad (210) is snapped into the bottom of the mounting base (200). A quick-release mechanism is provided inside the mounting base (200).

2. The outrigger hydraulic cylinder with a cartridge hydraulic lock according to claim 1, characterized in that: The anti-retraction mechanism includes an installation chamber (120), an installation plate (121), a bidirectional screw (122), a motor (130), a moving plate (140), and a positioning rod (141).

3. A hydraulic cylinder for outriggers with a cartridge hydraulic lock according to claim 2, characterized in that: The mounting chamber (120) is fixedly connected to the outer side wall of the cylinder body (100). Mounting plates (121) are fixedly connected to the left and right side walls and the front and rear sides of the mounting chamber (120). A bidirectional screw (122) is rotatably connected between the inner side walls of the mounting plates (121) on the front and rear sides.

4. A hydraulic cylinder for outriggers with a cartridge hydraulic lock according to claim 2, characterized in that: The motor (130) is fixedly connected to the front side wall of the mounting plate (121) on the right front side. The rear end of the power output shaft of the motor (130) passes through the mounting plate (121) on the right front side and extends to the rear side wall of the mounting plate (121) on the right front side. The rear end of the power output shaft of the motor (130) is fixedly connected to the bidirectional screw (122) on the right side.

5. A hydraulic cylinder for outriggers with a cartridge hydraulic lock according to claim 2, characterized in that: The movable plate (140) is screwed to the front and rear sides of the outer side wall of the bidirectional screw (122) on the left and right sides. The inner side wall of the movable plate (140) on the front and rear sides is fixedly connected with a positioning rod (141). The ends of the positioning rods (141) on the front and rear sides extend into the interior of the piston rod (110).

6. A hydraulic cylinder for outriggers with a cartridge hydraulic lock according to claim 1, characterized in that: The quick-release mechanism includes a mounting slot (220), a sliding plate (221), a positioning latch (222), a pull rod (230), and a compression spring (231).

7. A hydraulic cylinder for outriggers with a cartridge hydraulic lock according to claim 6, characterized in that: The mounting groove (220) is opened on the left side inside the mounting base (200). The inner cavity of the mounting groove (220) is slidably connected to a sliding plate (221). The right side wall of the sliding plate (221) is fixedly connected to a positioning tenon (222), and the positioning tenons (222) are arranged sequentially from front to back. The right end of the positioning tenon (222) passes through the anti-slip pad (210) and extends into the interior of the mounting base (200).

8. A hydraulic cylinder for outriggers with a cartridge hydraulic lock according to claim 6, characterized in that: The pull rod (230) is inserted into the left side wall of the mounting base (200), the right end of the pull rod (230) passes through the mounting base (200) and extends into the inner cavity of the mounting groove (220), and the right end of the pull rod (230) is fixedly connected to the sliding plate (221). A compression spring (231) is sleeved on the outer side wall of the pull rod (230).

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