Supporting leg oil cylinder with dust cover structure

Abstract

The utility model discloses a landing leg oil cylinder with a dust cover structure. The landing leg oil cylinder comprises an oil cylinder body, the base is used for connecting a machine with the ground, and the inner wall of the base is rotationally connected with the inner wall of the oil cylinder body; the supporting leg oil cylinder further comprises a dustproof cover body, and the dustproof cover body is used for preventing dust of the oil cylinder supporting leg. According to the device, the mounting assembly is arranged, the dust cover body is tightly fixed to the base through threaded connection between the base plate and the mounting ring and the base, then the top of the dust cover body is fixed to the outer wall of the oil cylinder body through the fixing assembly, check rings on the oil cylinder body are selected firstly, the check rings are arranged at the two ends of the oil cylinder body respectively, and then the oil cylinder body is fixed. When a worker needs to operate the oil cylinder frequently, the check ring at the bottom of the oil cylinder body can be selected, otherwise, the check ring at the top of the oil cylinder body can be selected, the dustproof cover body is fixed above the check rings through the fixing assembly, and the worker can select the dustproof range of the oil cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to an outrigger oil cylinder with a dust cover structure. Background Art

[0002] The outrigger cylinder is a hydraulically driven device, usually installed at the bottom of the outrigger of heavy machinery such as loaders and excavators. The outrigger cylinder works based on the hydraulic system. It has a piston and a hydraulic oil chamber inside. The support function and height adjustment are achieved by operating the control valve and adjusting the height of the piston.

[0003] In the prior art, for example, the dust cover structure of the outrigger oil cylinder with Chinese patent number CN218883013U includes: a ball seat; a mounting ring, which is mounted on the outer peripheral surface of the cylinder barrel and is located at one end of the cylinder barrel facing the ball seat; a dust cover, one end of which is connected to the ball seat, and the other end of which is connected to the mounting ring, and the dust cover can be extended and retracted along the axial direction of the cylinder barrel. The utility model mounts one end of the dust cover on the ball seat and the other end of the dust cover on the cylinder barrel through the mounting ring, thereby effectively protecting the surface of the piston rod on the one hand, and preventing the dust cover from occupying the effective working stroke of the piston rod on the other hand.

[0004] However, in the prior art, although the above patent has the above technical advantages, it has the disadvantage that the dust cover in the above device can only protect a section from one end of the cylinder close to the ball seat to the ball seat, but cannot protect the outer surface of the cylinder. The outrigger cylinder is usually used in a mechanical area, and its surface is often scratched and hit. If only the outrigger part of the cylinder can be protected from dust, dust may accumulate in other parts of the cylinder and be damaged, which may affect the use of the cylinder by the staff. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model adopts a technical solution to solve the technical problems thereof: an outrigger oil cylinder with a dust cover structure, comprising: an oil cylinder body;

[0006] A base, the base is used to connect the machine to the ground, and the inner wall of the base is rotatably connected to the inner wall of the oil cylinder body;

[0007] The outrigger cylinder also includes:

[0008] A dust cover body, the dust cover body is used to protect the oil cylinder legs from dust, and both ends of the dust cover body are fixedly mounted on the outer wall of the oil cylinder body through mounting components;

[0009] An installation component, the installation component is used to install the dust cover body, the bottom of the installation component is threadedly connected with the inner wall of the base through a thread groove, and the thread groove is opened in the wall of the base;

[0010] The mounting assembly comprises a chassis, a mounting ring is arranged on the outside of the chassis, the mounting ring and the outer wall of the chassis are fixedly connected with magnetic blocks, the mounting ring and the wall of the chassis are provided with card slots, the mounting ring and the wall of the chassis are provided with penetration slots, the top of the dust cover is slidably connected with a fixing assembly, the bottom of the fixing assembly is slidably connected with a retaining ring, the mounting ring and the outer wall of the chassis are fixedly connected with handles, the retaining rings are respectively arranged at both ends of the cylinder body, if the staff needs to operate the cylinder frequently, the retaining ring at the bottom of the cylinder body can be selected and the dust cover can be fixed with the fixing assembly;

[0011] A fixing component is used to adjust the position of the top of the dust cover body. The outer wall of the fixing component is threadedly connected to the inner wall of the cylinder body through a threaded hole, and the threaded hole is opened in the wall of the cylinder body.

[0012] Preferably, the outer wall of the magnetic block is slidably connected to the inner wall of the slot, the bottom of the dust cover is slidably connected to the inner wall of the base through a penetrating groove, the inner wall of the mounting ring is slidably connected to the bottom of the dust cover through a penetrating groove, the cross-section of the penetrating groove is L-shaped, and the dust cover extends out a section after passing through the chassis and the mounting ring.

[0013] Preferably, the outer walls of the mounting ring and the chassis are both threadedly connected to the inner wall of the base, the inner wall of the base is slidably connected to the bottom of the dust cover, and the small gap between the chassis and the mounting ring and the base can tightly fix the dust cover.

[0014] Preferably, the fixing assembly includes an adjusting ring, the inner wall of the adjusting ring is slidably connected with an insert ring, a fixing ring is arranged outside the insert ring, the inner wall of the fixing ring is slidably connected with a sleeve ring, the inner walls of the sleeve ring and the fixing ring are both threadedly connected with fastening bolts, the adjusting ring cooperates with the insert ring, and the fixing ring cooperates with the sleeve ring.

[0015] Preferably, the bottoms of the adjusting ring and the plug-in ring are both slidably connected to the outer wall of the retaining ring, the outer wall of the retaining ring is fixedly connected to the outer wall of the cylinder body, the outer walls of the adjusting ring and the plug-in ring are both slidably connected to the top of the dust cover, the outer walls of the fixed ring and the sleeve ring are both slidably connected to the top of the dust cover, the adjusting ring and the plug-in ring are respectively inserted on both sides of the cylinder body and placed on the retaining ring, and then the top of the dust cover is passed through the adjusting ring and the plug-in ring.

[0016] Preferably, the inner walls of the adjustment ring and the insert ring are threadedly connected to the outer wall of the fastening bolt, the outer wall of the fastening bolt is slidably connected to the inner wall of the dust cover, the outer wall of the fastening bolt is threadedly connected to the inner wall of the cylinder body, the fastening bolt is inserted and rotated to fix the top of the dust cover to the outer wall of the cylinder body through the fixing assembly.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The utility model sets a mounting assembly, and through the threaded connection between the chassis and the mounting ring and the base, the dust cover body passing through the chassis and the mounting ring is tightly fixed on the base, and then the top of the dust cover body is fixed to the outer wall of the cylinder body by using the fixing assembly. First, the retaining ring on the cylinder body is selected, and the retaining rings are respectively arranged at both ends of the cylinder body. If the staff needs to operate the cylinder frequently, the retaining ring at the bottom of the cylinder body can be selected, otherwise the retaining ring at the top can be selected, and then the dust cover body is fixed above the retaining ring by using the fixing assembly, so that the dustproof range of the cylinder can be selected by the staff.

[0019] 2. The utility model sets a fixing component. When checking the condition inside the dust cover, you only need to unscrew the fastening bolts and pull down the dust cover to see the working condition of the cylinder between the base and the cylinder body. When replacing the dust cover, similarly, after removing the fastening bolts, rotate the bottom chassis and the mounting ring to remove the dust cover, thereby achieving the purpose of convenient disassembly and assembly of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the exterior of the chassis of the utility model;

[0023] Figure 4 It is a structural exploded diagram of the fixing component of the utility model.

[0024] In the figure: 1. Cylinder body; 2. Base; 3. Dust cover; 4. Mounting assembly; 41. Chassis; 42. Mounting ring; 43. Magnetic block; 44. Slot; 45. Penetration slot; 46. Fixing assembly; 461. Adjusting ring; 462. Insert ring; 463. Fixing ring; 464. Sleeve ring; 465. Fastening bolt; 47. Retaining ring; 48. Handle; 5. Threaded groove; 6. Threaded hole. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0026] Example:

[0027] See also Figure 1 - Figure 4 , the utility model provides a technical solution: an outrigger oil cylinder with a dust cover structure, comprising: an oil cylinder body 1;

[0028] The base 2 is used to connect the machine with the ground, and the inner wall of the base 2 is rotatably connected to the inner wall of the cylinder body 1;

[0029] The outrigger cylinder also includes:

[0030] The dust cover 3 is used to protect the oil cylinder legs from dust. Both ends of the dust cover 3 are fixedly mounted on the outer wall of the oil cylinder body 1 through mounting components 4;

[0031] The mounting assembly 4 is used to mount the dust cover 3. The bottom of the mounting assembly 4 is threadedly connected to the inner wall of the base 2 through a threaded groove 5, and the threaded groove 5 is provided in the wall of the base 2;

[0032] The mounting assembly 4 includes a chassis 41, a mounting ring 42 is provided on the outside of the chassis 41, and the outer walls of the mounting ring 42 and the chassis 41 are fixedly connected with magnetic blocks 43, the walls of the mounting ring 42 and the chassis 41 are provided with card slots 44, and the walls of the mounting ring 42 and the chassis 41 are provided with penetration slots 45, the top of the dust cover body 3 is slidably connected with a fixing assembly 46, the bottom of the fixing assembly 46 is slidably connected with a retaining ring 47, the outer walls of the mounting ring 42 and the chassis 41 are fixedly connected with handles 48, and the retaining rings 47 are respectively provided at both ends of the oil cylinder body 1. If the staff needs to frequently operate the oil cylinder, the retaining ring 47 at the bottom of the oil cylinder body 1 can be selected and then the dust cover body 3 can be fixed using the fixing assembly 46;

[0033] The fixing component 46 is used to adjust the position of the top of the dust cover body 3. The outer wall of the fixing component 46 is threadedly connected to the inner wall of the cylinder body 1 through the threaded hole 6, and the threaded hole 6 is opened in the wall of the cylinder body 1. The outer wall of the magnetic block 43 is slidably connected to the inner wall of the card slot 44. The bottom of the dust cover body 3 is slidably connected to the inner wall of the base 2 through the penetration groove 45. The inner wall of the mounting ring 42 is slidably connected to the bottom of the dust cover body 3 through the penetration groove 45. The cross-section of the penetration groove 45 is L-shaped. The dust cover body 3 passes through the chassis 41 and the mounting ring 42 and then extends a section. The outer walls of the mounting ring 42 and the chassis 41 are both threadedly connected to the inner wall of the base 2. The inner wall of the base 2 is slidably connected to the bottom of the dust cover body 3. The handle 48 is used to rotate the chassis 41 and the mounting ring 42 so that the bottom end of the dust cover body 3 is fixed on the base 2. The small gap between the chassis 41 and the mounting ring 42 and the base 2 can tightly fix the dust cover body 3.

[0034] The fixing assembly 46 includes an adjusting ring 461, the inner wall of which is slidably connected to an insert ring 462, a fixing ring 463 is provided outside the insert ring 462, a sleeve ring 464 is slidably connected to the inner wall of the fixing ring 463, and the inner walls of the sleeve ring 464 and the fixing ring 463 are both threadedly connected to fastening bolts 465, the adjusting ring 461 cooperates with the insert ring 462, the fixing ring 463 cooperates with the sleeve ring 464, and the bottoms of the adjusting ring 461 and the insert ring 462 are both The outer wall of the retaining ring 47 is slidably connected to the outer wall of the cylinder body 1, the outer wall of the adjusting ring 461 and the inserting ring 462 are both slidably connected to the top of the dust cover 3, the outer walls of the fixing ring 463 and the sleeve ring 464 are both slidably connected to the top of the dust cover 3, the adjusting ring 461 and the inserting ring 462 are respectively inserted on both sides of the cylinder body 1 and placed on the retaining ring 47, and then the top of the dust cover 3 is passed through the adjusting ring 46 1 and insert ring 462, a fixing ring 463 and a sleeve ring 464 are sleeved on both sides of the dust cover body 3, and the holes on the fixing ring 463 and the sleeve ring 464 correspond to the holes on the adjusting ring 461 and the insert ring 462 respectively, and these holes also correspond to the holes and threaded holes 6 on the dust cover body 3, the inner walls of the adjusting ring 461 and the insert ring 462 are both threadedly connected with the outer wall of the fastening bolt 465, and the outer wall of the fastening bolt 465 is slidably connected with the inner wall of the dust cover body 3, and the tight The outer wall of the fixing bolt 465 is threadedly connected to the inner wall of the cylinder body 1. The fixing bolt 465 is inserted and rotated to fix the top of the dust cover 3 on the outer wall of the cylinder body 1 through the fixing assembly 46. When checking the situation inside the dust cover 3, it is only necessary to unscrew the fixing bolt 465 and pull down the dust cover 3. When replacing the dust cover 3, after removing the fixing bolt 465, rotate the bottom chassis 41 and the mounting ring 42 to remove the dust cover 3.

[0035] Working principle:

[0036] When in use, when the hydraulic oil enters the hydraulic oil chamber of the cylinder body 1, the legs extend to increase the distance between the base 2 and the top of the cylinder body 1. Since the two ends of the dust cover 3 are respectively fixedly mounted on the base 2 and the cylinder body 1 through the mounting assembly 4, the dust cover 3 is stretched when the legs are extended. When installing the dust cover 3, first separate the parts in the mounting assembly 4, pass the dust cover 3 through the cylinder body 1, and then connect the chassis 41 and the mounting ring 42 on both sides of the dust cover 3 through the magnetic suction block 43. The block 43 is inserted into the card slot 44 and attracted to the iron mounting ring 42 and the chassis 41. Then, the bottom of the dust cover body 3 is passed through the penetration groove 45. The cross-section of the penetration groove 45 is L-shaped. The dust cover body 3 passes through the chassis 41 and the mounting ring 42 and then extends out a section. After the chassis 41 and the mounting ring 42 are pressed down with the threaded groove 5, the handle 48 is used to rotate the chassis 41 and the mounting ring 42 so that the bottom end of the dust cover body 3 is fixed on the base 2. The small gap between the chassis 41 and the mounting ring 42 and the base 2 can tightly fix the dust cover body 3.

[0037] Then, use the fixing assembly 46 to fix the top of the dust cover 3 on the outer wall of the cylinder body 1. First, select the retaining ring 47 on the cylinder body 1. The retaining rings 47 are respectively set at both ends of the cylinder body 1. If the staff needs to frequently operate the cylinder, the retaining ring 47 at the bottom of the cylinder body 1 can be selected, and then the adjusting ring 461 and the insert ring 462 are respectively inserted on both sides of the cylinder body 1 and placed on the retaining ring 47. Then, the top of the dust cover 3 is passed through the adjusting ring 461 and the insert ring 462, and the fixing ring 463 and the sleeve ring 464 are put on both sides of the dust cover 3. The holes correspond to the holes on the adjusting ring 461 and the plug ring 462 respectively, and these holes also correspond to the holes and threaded holes 6 on the dust cover body 3. Then the staff inserts and rotates the fastening bolts 465 to fix the top of the dust cover body 3 to the outer wall of the cylinder body 1 through the fixing assembly 46; when checking the situation inside the dust cover body 3, just unscrew the fastening bolts 465, pull down the dust cover body 3 to see the working condition of the cylinder between the base 2 and the cylinder body 1, and when replacing the dust cover body 3, similarly remove the fastening bolts 465, rotate the bottom chassis 41 and the mounting ring 42, and then the dust cover body 3 can be removed.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A leg oil cylinder with a dust cover structure, comprising: Cylinder body (1); A base (2), the base (2) being used to connect the machine to the ground, the inner wall of the base (2) being rotatably connected to the inner wall of the oil cylinder body (1); Characterized in that the outrigger oil cylinder also includes: A dust cover (3), the dust cover (3) is used to protect the oil cylinder legs from dust, and both ends of the dust cover (3) are fixedly mounted on the outer wall of the oil cylinder body (1) via mounting components (4); An installation component (4), the installation component (4) is used to install the dust cover (3), the bottom of the installation component (4) is threadedly connected to the inner wall of the base (2) through a threaded groove (5), and the threaded groove (5) is opened in the wall of the base (2); The mounting assembly (4) comprises a chassis (41), the outside of the chassis (41) is provided with a mounting ring (42), the outer walls of the mounting ring (42) and the chassis (41) are both fixedly connected with magnetic blocks (43), the walls of the mounting ring (42) and the chassis (41) are both provided with card slots (44), the walls of the mounting ring (42) and the chassis (41) are both provided with penetration slots (45), the top of the dust cover (3) is slidably connected with a fixing assembly (46), the bottom of the fixing assembly (46) is slidably connected with a retaining ring (47), and the outer walls of the mounting ring (42) and the chassis (41) are both fixedly connected with a handle (48); A fixing assembly (46) is used to adjust the position of the top of the dust cover (3); the outer wall of the fixing assembly (46) is threadedly connected to the inner wall of the cylinder body (1) through a threaded hole (6), and the threaded hole (6) is opened in the wall of the cylinder body (1).

2. The outrigger oil cylinder with a dust cover structure according to claim 1, characterized in that: The outer wall of the magnetic block (43) is slidably connected to the inner wall of the slot (44), the bottom of the dust cover (3) is slidably connected to the inner wall of the base (2) via a through-groove (45), and the inner wall of the mounting ring (42) is slidably connected to the bottom of the dust cover (3) via a through-groove (45).

3. The outrigger oil cylinder with a dust cover structure according to claim 1, characterized in that: The outer walls of the mounting ring (42) and the bottom plate (41) are both threadedly connected to the inner wall of the base (2), and the inner wall of the base (2) is slidably connected to the bottom of the dust cover (3).

4. The outrigger oil cylinder with a dust cover structure according to claim 1, characterized in that: The fixing assembly (46) comprises an adjusting ring (461), the inner wall of the adjusting ring (461) is slidably connected to an insert ring (462), a fixing ring (463) is arranged outside the insert ring (462), the inner wall of the fixing ring (463) is slidably connected to a sleeve ring (464), and the inner walls of the sleeve ring (464) and the fixing ring (463) are both threadedly connected to fastening bolts (465).

5. The outrigger oil cylinder with a dust cover structure according to claim 4, characterized in that: The bottoms of the adjusting ring (461) and the inserting ring (462) are both slidably connected to the outer wall of the retaining ring (47); the outer wall of the retaining ring (47) is fixedly connected to the outer wall of the oil cylinder body (1); the outer walls of the adjusting ring (461) and the inserting ring (462) are both slidably connected to the top of the dust cover (3); and the outer walls of the fixing ring (463) and the sleeve ring (464) are both slidably connected to the top of the dust cover (3).

6. The outrigger oil cylinder with a dust cover structure according to claim 4, characterized in that: The inner walls of the adjusting ring (461) and the insert ring (462) are both threadedly connected to the outer wall of the fastening bolt (465), the outer wall of the fastening bolt (465) is slidably connected to the inner wall of the dust cover (3), and the outer wall of the fastening bolt (465) is threadedly connected to the inner wall of the cylinder body (1).

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