Protective shell fixing structure for mud barge oil cylinder

Abstract

The utility model discloses a protective shell fixing structure for a mud barge oil cylinder, and relates to the technical field of mud barge oil cylinders, the protective shell fixing structure comprises an oil cylinder body and a protective shell, the protective shell comprises two groups of connecting shells, the two ends of one group of connecting shells are fixedly connected with connecting plugs, the two ends of the other group of connecting shells are provided with slots matched with the connecting plugs, and the connecting plugs are inserted into the slots. The connecting plugs are inserted into the inserting grooves, side sliding grooves are formed in the two ends of each connecting plug, a movable inserting block is slidably connected into each side sliding groove, the two connecting shells are installed on the outer surface of the oil cylinder body in a combined mode, and under the action of the connecting plugs, the inserting grooves, the side sliding grooves, the movable inserting blocks and the second springs, the connecting plugs are inserted into the inserting grooves. The two connecting shells are rapidly combined, the protective shell is fixed to the oil cylinder body, when an outer protective plate of the protective shell is impacted, impact force is buffered under the action of the first buffering mechanism, and the impact resistance of the oil cylinder body is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology for mud barges, specifically a protective outer shell fixing structure for hydraulic cylinders of mud barges. Background Technology

[0002] Mud barges are engineering vessels specifically designed for loading, transporting, and unloading mud, sand, and gravel. They are often paired with various non-self-loading dredgers for dredging operations and loading, transporting, and dumping sand and gravel. Mud barges play an important role in marine dredging projects, transporting the mud and sand dredged by dredgers. Open-body mud barge hydraulic cylinders are a type of modern, superior hydraulic cylinder for transporting and unloading barges.

[0003] Chinese Patent Publication No. CN221547441U discloses a hydraulic cylinder for an open-body mud barge with a buffer structure, comprising an open-body mud barge cylinder body, a hydraulic rod, a threaded cylinder, a compression pipe, and a threaded rod. The hydraulic rod is slidably connected inside the open-body mud barge cylinder body, buffer components are symmetrically arranged inside the open-body mud barge cylinder body, and a hydraulic lifting plug is slidably connected inside the open-body mud barge cylinder body. A threaded cylinder is fixedly installed on one side of the hydraulic lifting plug.

[0004] However, the inventor of the above-mentioned device believes that there are certain defects. The protective shell of the above-mentioned device is fixed by bolts, which requires specific tools for installation and disassembly, making the fixing inconvenient. In addition, the protective shell has weak protection. Therefore, this utility model provides a protective shell fixing structure for the oil cylinder of mud barge. Utility Model Content

[0005] The purpose of this invention is to provide a protective housing fixing structure for the hydraulic cylinder of a mud barge, so as to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective shell fixing structure for a mud barge hydraulic cylinder, comprising a hydraulic cylinder body and a protective shell. The protective shell includes two sets of connecting shells. Both ends of one set of connecting shells are fixedly connected to a connecting plug. Both ends of the other set of connecting shells are provided with slots adapted to the connecting plugs. The connecting plugs are inserted into the slots. Both ends of the connecting plugs are provided with side sliding grooves. A movable insert is slidably connected inside each side sliding groove. The movable insert is connected to the inner wall of the side sliding groove by a second spring. The protective shell also includes two outer protective plates. A first buffer mechanism is provided between each outer protective plate and a set of connecting shells.

[0007] Preferably, the first buffer mechanism includes a pressing rod hinged to the inner wall of the outer protective plate by a pin. A sliding groove is provided on the connecting shell. A sliding block is slidably connected inside the sliding groove. The other end of the pressing rod is hinged to the top of the sliding block by a pin. The sliding block is connected to the inner wall of the sliding groove by a first spring. The pressing rod presses the two sliding blocks away from each other, and the impact of the outer protective plate is buffered by the elastic force of the first spring.

[0008] Preferably, a movable slide rod is fixedly connected to the inner wall of the outer protective plate, and a fixed sleeve is fixedly connected to the connecting shell. One end of the movable slide rod is slidably connected to one end of the fixed sleeve. A second buffer mechanism is provided inside the fixed sleeve. Through the fixed sleeve and the movable slide rod, the outer protective plate can slide stably on the outer surface of the connecting shell.

[0009] Preferably, the second buffer mechanism includes a third spring fixed inside the fixed sleeve. The third spring is located at the bottom of the movable slide rod, and the impact of the outer protective plate approaching the connecting shell is reduced by the action of the third spring.

[0010] Preferably, a piston plate is fixedly connected to the bottom of the movable slide rod, and the piston plate is slidably connected inside the fixed sleeve. The fixed sleeve has an exhaust hole, and the third spring is fixedly connected to the bottom of the piston plate. When the piston plate slides into the fixed sleeve, the air inside the fixed sleeve is discharged through the exhaust hole. Since the hole diameter of the fixed sleeve is small, the sliding of the piston plate is slowed down.

[0011] Preferably, one end of the movable plug is inclined, and the connector is cuboid in shape. The inclined movable plug allows the connector to slide into the side groove by pressing the movable plug through the slot when it is inserted into the slot.

[0012] Preferably, the connecting shell is semi-circular, and an anti-slip pad is fixedly connected to the inner wall of the connecting shell. Under the action of the anti-slip pad, the two sets of connecting shells are stably fixed to the outer surface of the cylinder body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application combines two connecting shells and installs them on the outer surface of the cylinder body. Under the action of the connecting plug, slot, side slide groove, movable plug block and second spring, the two connecting shells are quickly combined and the protective shell is fixed on the cylinder body. When the outer protective plate of the protective shell is impacted, the impact force is buffered by the action of the first buffer mechanism, thereby improving the impact resistance of the cylinder body.

[0015] 2. This application utilizes a sliding groove, sliding block, first spring, and compression rod to initially buffer the impact force when the outer protective plate is impacted by compressing the first spring. Furthermore, the outer protective plate is further buffered by compressing the third spring as it moves closer to the connecting shell via a fixed sleeve, vent hole, movable sliding rod, piston plate, and third spring. As the piston plate slides inside the fixed sleeve, it vents air from the sleeve through the vent hole. The small diameter of the fixed sleeve further slows down the sliding of the piston plate, thus improving the buffering effect on the outer protective plate. Attached Figure Description

[0016] Figure 1 This is a perspective view of the protective outer shell fixing structure for the hydraulic cylinder of the mud barge according to this utility model.

[0017] Figure 2 This is a sectional view of the outer protective plate of the protective shell fixing structure for the oil cylinder of the mud barge according to this utility model;

[0018] Figure 3 This utility model relates to a protective housing fixing structure for hydraulic cylinders on mud barges. Figure 2 Enlarged view at point A;

[0019] Figure 4 This is a sectional view of the fixing sleeve of the protective shell fixing structure for the hydraulic cylinder of the mud barge according to this utility model;

[0020] Figure 5 This is a cross-sectional view of the connector plug of the protective housing fixing structure for the hydraulic cylinder of the mud barge according to this utility model.

[0021] The following are the labels in the diagram: 1. Cylinder body; 2. Connecting shell; 21. Sliding groove; 22. Sliding block; 23. First spring; 24. Extrusion rod; 3. Connecting plug; 31. Side sliding groove; 32. Movable insert block; 33. Second spring; 4. Outer protective plate; 5. Fixed sleeve; 51. Exhaust port; 6. Movable sliding rod; 7. Piston plate; 8. Third spring. Detailed Implementation

[0022] 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.

[0023] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The protective shell fixing structure for the hydraulic cylinder of the mud barge includes a hydraulic cylinder body 1 and a protective shell. The protective shell includes two sets of connecting shells 2. Both ends of one set of connecting shells 2 are fixedly connected to connecting plugs 3. Both ends of the other set of connecting shells 2 are provided with slots that are compatible with the connecting plugs 3. The connecting plugs 3 are inserted into the slots. Both ends of the connecting plugs 3 are provided with side sliding grooves 31. Each side sliding groove 31 is slidably connected with a movable plug 32. By inserting the connecting plug 3 into the slot, and then restricting the connecting plug 3 from being pulled out of the slot by sliding the movable plug 32, the combination connection between the two connecting shells 2 is completed. The connecting shells 2 are semi-circular arc-shaped. The inner wall of the connecting shells 2 is fixedly connected with anti-slip pads. Under the action of the anti-slip pads, the stability of the two sets of connecting shells 2 installed on the hydraulic cylinder body 1 is improved.

[0024] Please refer to it again. Figure 1 , Figure 2 and Figure 5 The movable plug 32 is connected to the inner wall of the side slide groove 31 by a second spring 33. One end of the movable plug 32 is inclined, and the connector 3 is rectangular. When the connector 3 is inserted into the slot, the slot squeezes the inclined end of the movable plug 32. When the movable plug 32 is not under force, the rebound of the second spring 33 quickly drives the movable plug 32 to slide out, thereby restricting the connector 3 from being pulled out of the slot.

[0025] Please refer to it again. Figure 1 , Figure 2 and Figure 3 The protective shell also includes two outer protective plates 4. Each outer protective plate 4 is provided with a first buffer mechanism between itself and a set of connecting shells 2. The first buffer mechanism includes a pressing rod 24 hinged to the inner wall of the outer protective plate 4 by a pin. A sliding groove 21 is provided on the connecting shell 2. A sliding block 22 is slidably connected inside the sliding groove 21. The other end of the pressing rod 24 is hinged to the top of the sliding block 22 by a pin. The sliding block 22 is connected to the inner wall of the sliding groove 21 by a first spring 23. There are two pressing rods 24 at the bottom of each outer protective plate 4. When the outer protective plate 4 is impacted, the outer protective plate 4 moves closer to the connecting shell 2 and pushes the sliding block 22 to slide inside the sliding groove 21 by the pressing rod 24. The impact on the outer protective plate 4 is buffered by compressing the first spring 23.

[0026] Please refer to it again. Figure 1 , Figure 2 and Figure 4A movable slide rod 6 is fixedly connected to the inner wall of the outer protective plate 4, and a fixed sleeve 5 is fixedly connected to the connecting shell 2. One end of the movable slide rod 6 is slidably connected to one end of the fixed sleeve 5. A second buffer mechanism is provided inside the fixed sleeve 5. The second buffer mechanism includes a third spring 8 fixed inside the fixed sleeve 5. The third spring 8 is located at the bottom of the movable slide rod 6. When the outer protective plate 4 approaches the connecting shell 2, the third spring 8 is compressed to further buffer the impact received by the outer protective plate 4.

[0027] Please refer to it again. Figure 1 , Figure 2 and Figure 4 A piston plate 7 is fixedly connected to the bottom of the movable slide rod 6. The piston plate 7 is slidably connected inside the fixed sleeve 5. The fixed sleeve 5 has an exhaust hole 51. The third spring 8 is fixedly connected to the bottom of the piston plate 7. The diameter of the exhaust hole 51 is 2mm-5mm. When the movable slide rod 6 pushes the piston plate 7 to slide into the fixed sleeve 5, the air inside the fixed sleeve 5 is discharged through the exhaust hole 51 by the piston plate 7. Since the diameter of the exhaust hole 51 is small, it buffers the sliding of the piston plate 7.

[0028] Working principle: By combining two sets of connecting shells 2 and installing them on the outer surface of the cylinder body 1, the connecting plug 3 is inserted into the slot. The compression of the slot pushes one end of the movable plug 32 to slide into the side slide groove 31, while compressing the second spring 33. Then, the rebound of the second spring 33 quickly drives the movable plug 32 to extend, thus limiting the connection plug 3 from being pulled out of the slot, completing the installation of the protective shell. The cylinder body 1 is installed in a suitable position for use. When the outer protective plate 4 is impacted, the compression rod 24 compresses the two sliding blocks 22 to move them away from each other. The sliding blocks 22 compress the first spring 23 to perform initial impact buffering. When the outer protective plate 4 moves closer to the connecting shell 2, the movable slide rod 6 pushes the piston plate 7 to slide into the fixed sleeve 5. The compression of the third spring 8 performs a second buffering. Finally, the piston plate 7 discharges the air inside the fixed sleeve 5 through the exhaust hole 51. Since the diameter of the exhaust hole 51 is small, it buffers the sliding of the piston plate 7, thereby buffering the outer protective plate 4 from moving closer to the connecting shell 2.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A protective housing fixing structure for a barge oil cylinder, characterized by: The utility model provides an oil cylinder body (1) and the protective shell, the protective shell includes two groups of connecting shell (2), both ends of one group of connecting shell (2) are fixedly connected with connecting plug (3), both ends of another group of connecting shell (2) are provided with the slot of being matched with connecting plug (3), connecting plug (3) is inserted in the inside of slot, both ends of connecting plug (3) are provided with side slide groove (31), the inside of each side slide groove (31) is slidably connected with movable plug (32), movable plug (32) is connected between the inboard wall of side slide groove (31) through second spring (33), the protective shell still includes two outer guards (4), and the first buffer mechanism is arranged between each outer guard (4) and a group of connecting shell (2).

2. The protective housing fixing structure for a barge oil cylinder according to claim 1, characterized by: The first buffer mechanism includes extruding rod (24) that is hinged in the inner wall of outer guard (4) through pin shaft, the sliding slot (21) is seted up on connecting shell (2), the sliding block (22) is slidably connected in the inside of sliding slot (21), the other end of extruding rod (24) is hinged on the top of sliding block (22) through pin shaft, and the first spring (23) is connected between the inboard wall of sliding slot (21) and sliding block (22).

3. The protective housing fixing structure for a barge oil cylinder according to claim 1, characterized by: The inner wall of outer guard (4) is fixedly connected with movable slide rod (6), the fixed sleeve (5) is fixedly connected on connecting shell (2), one end of movable slide rod (6) is slidably connected in one end of fixed sleeve (5), and the second buffer mechanism is arranged in the inside of fixed sleeve (5).

4. The protective housing fixing structure for a barge oil cylinder according to claim 3, characterized by: The second buffer mechanism includes third spring (8) that is fixed in the inside of fixed sleeve (5), and the third spring (8) is arranged in the bottom of movable slide rod (6).

5. The protective housing fixing structure for the oil cylinder of the hopper barge according to claim 4, characterized by: The bottom of movable slide rod (6) is fixedly connected with piston plate (7), piston plate (7) is slidably connected in the inside of fixed sleeve (5), the fixed sleeve (5) is provided with exhaust hole (51), and the third spring (8) is fixedly connected in the bottom of piston plate (7).

6. The protective housing fixing structure for a barge oil cylinder according to claim 1, characterized by: One end of movable plug (32) is inclined, and connecting plug (3) is cuboid.

7. The protective housing fixing structure for a barge oil cylinder according to claim 1, characterized by: The inner wall of connecting shell (2) is fixedly connected with antiskid pad.

Images