Oil cylinder full protection device and operation machine

Abstract

The utility model relates to the technical field of engineering machinery, and discloses an oil cylinder full-protection device and an operation machine, and the oil cylinder full-protection device comprises a fixed protection plate, a sliding protection plate and a wear-resistant part. The fixed protection plate is arranged on the oil cylinder barrel, and the wear-resistant part is arranged on the sliding protection plate and is in sliding connection with the fixed protection plate. One of the sliding protection plate and the wear-resistant part is provided with a clamping part, the other one is provided with a clamping groove, and the clamping part is inserted into the clamping groove. The fixed protection plate and the sliding protection plate are matched with each other to form an oil cylinder full-protection structure, the protection effect in the whole working range is effectively achieved, the abrasion-resistant characteristic of abrasion-resistant part materials is utilized, the contact condition of the sliding protection plate and the fixed protection plate can be effectively improved, abrasion is not prone to occurring, and the service life of the oil cylinder full-protection device is prolonged. And abnormal sound, protection failure and the like caused by frictional wear are reduced. And in addition, through mutual matching of the clamping parts and the clamping grooves, the wear-resistant part and the sliding protection plate are rapidly installed, disassembly is convenient, and maintenance is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a full protection device for an oil cylinder and an operating machine. Background Art

[0002] Cylinders are common components in construction machinery, such as excavators, and operate in complex environments, such as mines and tunnels. Due to these special operating conditions, not only the piston rod but also the barrel and its accessories must be protected.

[0003] Currently, a commonly used method is to add a fixed guard plate and a sliding guard plate to the oil cylinder. The sliding guard plate is slidably connected to the fixed guard plate and reciprocates with the piston rod.

[0004] However, since the fixed guard plate and the sliding guard plate are in hard contact, friction damage is very likely to occur under the condition of frequent extension and contraction of the cylinder, causing the sliding guard plate to reciprocate poorly with the piston head, generating noise, and in severe cases even causing the sliding guard plate to fail to protect. Utility Model Content

[0005] The utility model provides a full protection device for an oil cylinder and an operating machine to solve or improve the problem in the related art that the fixed guard plate and the sliding guard plate are very likely to be damaged by friction under the working conditions of frequent extension and contraction of the oil cylinder, resulting in poor reciprocating motion of the sliding guard plate with the piston head, generating noise, and even failure of the sliding guard plate protection in severe cases.

[0006] In a first aspect, the utility model provides a full protection device for an oil cylinder, comprising:

[0007] A fixed protective plate is provided on the cylinder barrel;

[0008] A sliding protective plate, one end of which is slidably connected to the fixed protective plate and the other end of which is connected to the piston rod of the oil cylinder, wherein the sliding protective plate and the piston rod of the oil cylinder move synchronously with each other;

[0009] a wear-resistant part, disposed on the sliding protective plate, and the wear-resistant part is slidably connected to the fixed protective plate;

[0010] Matching clamping parts and clamping grooves, one of the sliding protection plate and the wear-resistant part is provided with the clamping part, and the other is provided with the clamping groove, and the clamping part is inserted into the clamping groove.

[0011] Beneficial Effects: The fixed and sliding guard plates work together to form a fully protected cylinder structure, effectively protecting the entire operating range. The wear-resistant properties of the wear-resistant material effectively improve the contact conditions between the sliding and fixed guard plates, reducing wear and tear, extending the service life of the cylinder guard system, and reducing noise and protection failures caused by friction and wear. Furthermore, the interplay of the clips and slots allows for quick installation of the wear-resistant parts and sliding guard plates, as well as convenient removal and maintenance.

[0012] In an optional embodiment, the method further includes:

[0013] A pair of grooves are respectively provided on both sides of the clamping portion, the clamping portion is provided on the sliding protective plate, and when the clamping portion is inserted into the clamping groove, the wear-resistant part extends into the pair of grooves.

[0014] Beneficial effect: When the wear-resistant part is inserted into the clamping part of the sliding protective plate, the wear-resistant part just extends into a pair of grooves, thereby playing a role in positioning and installing the wear-resistant part, effectively improving assembly efficiency and assembly accuracy.

[0015] In an optional embodiment, the fixed protective plate has a slideway adapted to the wear-resistant part, and the wear-resistant part is slidably arranged in the slideway.

[0016] Beneficial effects: The fixed protective plate itself has a slide, and there is no need to set up additional slide accessories, which simplifies the structure. When replacing the sliding protective plate, there is no need to remove the entire device. Only the sliding protective plate and the cylinder piston rod need to be separated, which is convenient for disassembly.

[0017] In an optional embodiment, the method further includes:

[0018] A locking mechanism is used to lock or unlock the fixed protective plate and the cylinder barrel. The locking mechanism and the cylinder barrel can be separated and can be switched between a locked state and an unlocked state. In the locked state, the fixed protective plate is fixedly connected to the cylinder barrel; in the unlocked state, the fixed protective plate is separated from the cylinder barrel.

[0019] Beneficial effects: The fixed protective plate and the cylinder barrel are locked or unlocked through the locking mechanism, and the locking mechanism and the cylinder barrel are detachable, so there is no need to change the original structure of the cylinder barrel, and the fixed protective plate and the cylinder barrel can be quickly connected and separated, which reduces the processing difficulty, facilitates assembly, improves the versatility of the cylinder, and facilitates later maintenance.

[0020] In an optional embodiment, the locking mechanism includes:

[0021] A pair of clamps are arranged opposite to each other, wherein a clamping space is formed between the pair of clamps for clamping the cylinder barrel, wherein one of the clamps is connected to the fixed protective plate, and the pair of clamps can be detachably connected to clamp or loosen the cylinder barrel;

[0022] In the locked state, the pair of clamps are engaged to clamp the cylinder barrel; in the unlocked state, the pair of clamps are separated to loosen the cylinder barrel.

[0023] Beneficial effect: The protective plate is fixed to the cylinder barrel by the clamp, and there is no need to weld a wire seat or flange on the cylinder barrel, thus avoiding stress concentration and welding defects, effectively protecting the cylinder barrel and increasing the service life of the cylinder.

[0024] In an optional embodiment, one end of a pair of the hoops is hooked together and the other end is detachably connected.

[0025] Beneficial effects: convenient and quick installation and disassembly, reducing the number of parts used.

[0026] In an optional embodiment, the method further includes:

[0027] a first ear plate, arranged on the fixed protective plate;

[0028] The second ear plate is arranged on one of the clamping hoops and is connected to the first ear plate.

[0029] Beneficial effect: The two ear plates cooperate with each other, making installation and disassembly convenient and easy to operate.

[0030] In an optional embodiment, there are at least two pairs of clamps, which are distributed at intervals along the axial direction of the cylinder barrel.

[0031] Beneficial effect: Through multiple sets of clamps, the fixed protective plate and the cylinder barrel are reliably connected to ensure the stability of the device.

[0032] In an optional embodiment, the method further includes:

[0033] A fixing seat is arranged at one end of the oil cylinder piston rod away from the fixed protective plate, and the other end of the sliding protective plate is detachably connected to the fixing seat.

[0034] Beneficial effect: The fixing seat and the sliding protective plate cooperate with each other, thereby improving the convenience of installation and facilitating the disassembly of the sliding protective plate.

[0035] In a second aspect, the present invention further provides an operating machine comprising the full cylinder protection device as described in any one of the above items.

[0036] Beneficial effect: Because the operating machinery includes the oil cylinder full protection device, it has the same effect as the oil cylinder full protection device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic structural diagram of a full protection device for an oil cylinder according to an embodiment of the present utility model;

[0039] Figure 2 This is an exploded view of the full cylinder protection device according to an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Fixed protective plate; 101. First ear plate; 102. Slide; 2. Sliding protective plate; 3. Cylinder barrel; 4. Cylinder piston rod; 5. Locking mechanism; 501. Clamp; 5011. Clamping shaft; 5012. Hook; 5013. First mounting hole; 502. Second ear plate; 6. Wear-resistant part; 7. Clamping part; 8. Clamping groove; 9. Fixed seat; 10. Second mounting hole; 11. Third mounting hole; 12. Groove. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0043] The following combination Figures 1 to 2 , describing the full cylinder protection device and operating machinery of the embodiment of the utility model.

[0044] According to an embodiment of the present invention, on the one hand, a full protection device for an oil cylinder is provided, comprising a fixed protection plate 1, a sliding protection plate 2, and a wear-resistant part 6. Specifically, Figure 1As shown, a fixed guard plate 1 is mounted on the cylinder barrel 3 to protect the barrel and its accessories. A sliding guard plate 2 is slidably connected to the fixed guard plate 1 at one end and to the cylinder piston rod 4 at the other end. The sliding guard plate 2 and the cylinder piston rod 4 move synchronously to protect the piston rod.

[0045] See also Figure 2 Wear-resistant member 6 is disposed on sliding guard plate 2 and is in sliding contact with fixed guard plate 1. Specifically, wear-resistant blocks can be used as wear-resistant blocks, including but not limited to nylon wear-resistant blocks. A pair of wear-resistant blocks can be provided, one on each side of sliding guard plate 2, in sliding contact with fixed guard plate 1.

[0046] Furthermore, the full cylinder guard device includes a matching snap-in portion 7 and a snap-in slot 8, with the snap-in portion 7 inserted into the snap-in slot 8. One of the sliding guard plate 2 and the wear-resistant member 6 is provided with the snap-in portion 7, while the other is provided with the snap-in slot 8. In other words, the sliding guard plate 2 is provided with the snap-in portion 7, and the wear-resistant member 6 is provided with the snap-in slot 8; alternatively, the wear-resistant member 6 is provided with the snap-in portion 7, and the sliding guard plate 2 is provided with the snap-in slot 8.

[0047] For example, Figure 2 As shown, the sliding protective plate 2 is provided with a clamping portion 7, and the wear-resistant part 6 is correspondingly provided with a matching clamping groove 8. The clamping groove 8 is set through, and the clamping portion 7 is inserted into the clamping groove 8. Therefore, the clamping portion 7 and the clamping groove 8 cooperate with each other to achieve rapid disassembly and assembly of the wear-resistant part 6 and the sliding protective plate 2.

[0048] In addition, if Figure 2 As shown, the wear-resistant parts 6 are a pair, and the two sides of the sliding protection plate 2 are respectively provided with a clamping portion 7. There are at least two pairs of wear-resistant parts 6, and they are spaced apart along the length direction of the sliding protection plate 2. The number and spacing of the wear-resistant parts 6 can be determined according to the actual design requirements. Figure 2 As for the placement position of the oil cylinder full protection device shown in the figure, the direction indicated by the arrow in the figure is the length direction of the sliding protection plate 2.

[0049] With this arrangement, the fixed guard plate 1 and the sliding guard plate 2 cooperate to form a fully protected cylinder structure, effectively providing protection throughout the entire operating range. By utilizing the wear-resistant properties of the wear-resistant member 6, the contact conditions between the sliding guard plate 2 and the fixed guard plate 1 are effectively improved, preventing wear, unusual friction noise, and protective failure, thereby extending the service life of the fully protected cylinder structure. In the event of damage, the sliding guard plate 2 need not be replaced; only the wear-resistant member 6 can be replaced, reducing maintenance costs. Furthermore, the interplay between the clamping portion 7 and the slot 8 allows for quick installation and removal of the wear-resistant member 6 and the sliding guard plate 2, facilitating maintenance.

[0050] In some embodiments of the present invention, the oil cylinder full protection device further includes a pair of grooves 12, specifically, as Figure 2 As shown, the clamping portion 7 is provided on the sliding guard plate 2, and a pair of grooves 12 are provided on either side of the clamping portion 7. When the clamping portion 7 is inserted into the slot 8, the wear-resistant member 6 extends into the pair of grooves 12. This arrangement ensures that when the wear-resistant member 6 is inserted into the clamping portion 7 of the sliding guard plate 2, it fits neatly into the pair of grooves 12, thereby limiting and securing the wear-resistant member 6 and effectively improving the assembly efficiency and precision of the device.

[0051] In some embodiments of the present invention, the fixed protective plate 1 has a slideway 102 adapted to the wear-resistant part 6, and the wear-resistant part 6 is slidably arranged in the slideway 102. Figure 2 As shown, the fixed protective plate 1 can be designed as a C-shaped structure. Specifically, the fixed protective plate 1 is bent integrally to form slideways 102 on both sides, so that the sliding protective plate 2 can directly extend into the slideways 102 and perform telescopic movement with the cylinder piston rod 4.

[0052] With such an arrangement, the fixed protective plate 1 itself has a slide 102, and there is no need to set up additional slide accessories, which simplifies the structure. When replacing the sliding protective plate 2, there is no need to remove the entire device. Only the sliding protective plate 2 and the cylinder piston rod 4 need to be separated, which makes disassembly convenient.

[0053] In some embodiments of the present invention, see Figure 1 As shown, the full protection device for the oil cylinder also includes a locking mechanism 5. The locking mechanism 5 is used to lock or unlock the fixed protective plate 1 and the oil cylinder barrel 3, and the locking mechanism 5 and the oil cylinder barrel 3 can be separated. That is to say, during installation, the locking mechanism 5 cooperates with the fixed protective plate 1 and the oil cylinder barrel 3 to complete the assembly connection; during disassembly, the locking mechanism 5 can be removed from the barrel at the same time without changing the original structure of the oil cylinder, which is convenient for processing. In addition, the locking mechanism 5 can switch between a locked state and an unlocked state. When the locking mechanism 5 is in the locked state, the fixed protective plate 1 is fixedly connected to the oil cylinder barrel 3. At this time, the sliding protective plate 2 cooperates and connects to install the entire device on the oil cylinder. When the locking mechanism 5 is in the unlocked state, the fixed protective plate 1 is separated from the oil cylinder barrel 3. At this time, the sliding protective plate 2 can be removed together to achieve quick separation.

[0054] With such arrangement, the fixed protective plate 1 and the cylinder barrel 3 are locked or unlocked by the locking mechanism 5, and the locking mechanism 5 and the cylinder barrel 3 are designed to be detachable, so that the fixed protective plate 1 and the cylinder barrel 3 can be quickly connected and separated without changing the original structure of the cylinder barrel, which reduces the processing difficulty, facilitates assembly, improves the versatility of the cylinder, and facilitates later maintenance.

[0055] In some embodiments of the present invention, Figure 2As shown, the locking mechanism 5 includes a pair of opposing clamps 501, forming a clamping space between the clamps 501 for clamping the cylinder barrel 3. One of the clamps 501 is connected to the fixed protective plate 1, and the clamps 501 can be detachably connected to tighten or loosen the cylinder barrel 3. In the locked state, the clamps 501 are engaged to clamp the cylinder barrel 3. In the unlocked state, the clamps 501 separate to loosen the cylinder barrel 3.

[0056] This arrangement allows the cylinder barrel 3 to be clamped by tightening the pair of clamps 501, and one of the clamps 501 is then connected and secured to the fixed protective plate 1, thereby achieving a connection between the fixed protective plate 1 and the cylinder barrel 3. This facilitates operation and eliminates the need for welding wire seats or flanges to the cylinder, thereby avoiding stress concentration and welding defects. This effectively protects the cylinder barrel 3 and extends the cylinder's service life. For disassembly, the fixed protective plate 1 can be quickly removed by simply separating the pair of clamps 501.

[0057] In some embodiments of the present invention, one end of a pair of hoops 501 is connected, and the other end can be detachably connected. Figure 2 As shown, one end of a pair of clamps 501 is connected by a matching clamping shaft 5011 and a hook 5012. One end of one clamp 501 is provided with a clamping shaft 5011, and one end of the other clamp 501 is provided with a corresponding hook 5012. The other ends of the pair of clamps 501 are provided with mounting portions, each of which has a first mounting hole 5013 that is compatible with the fastener.

[0058] During installation, one end of the pair of clamps 501 is connected to the clamping shaft 5011 via a hook 5012, and the other end is locked by inserting a fastener, such as a bolt, into the corresponding first mounting hole 5013, thereby achieving quick connection of the pair of clamps 501. During disassembly, simply remove the bolt. This arrangement facilitates assembly and disassembly, reduces the number of parts used, and simplifies the operation steps. In other embodiments, one end of the pair of clamps 501 can be connected by a rotating shaft, etc., and the other end can be quickly connected and disconnected using a snap structure, etc.

[0059] In some embodiments of the present invention, the oil cylinder full protection device further includes a first ear plate 101 and a second ear plate 502. Figure 2 The first ear plate 101 is disposed on the fixed protective plate 1. The first ear plates 101 can be a pair, and the pair of first ear plates 101 are oppositely disposed on both sides of the fixed protective plate 1. The second ear plate 502 is disposed on one of the clamps 501. The second ear plates 502 can be a pair, and the second ear plates 502 are arranged in a one-to-one correspondence with the first ear plates 101.

[0060] The second lug plate 502 is connected to the first lug plate 101. Specifically, the second lug plate 502 and the first lug plate 101 are provided with corresponding second mounting holes 10 compatible with fasteners. Fasteners, such as bolts, are inserted into the corresponding second mounting holes 10 to connect the first lug plate 101 and the second lug plate 502. This arrangement, through the interaction of the two lug plates, secures the clamp 501 to the fixed protective plate 1, facilitating installation and removal, and making operation convenient.

[0061] In some embodiments of the present invention, there are at least two pairs of clamps 501, and they are spaced apart along the axial direction of the cylinder barrel 3. The number and spacing of the clamps 501 need to be determined according to actual design requirements. Figure 1 and Figure 2 As shown, two pairs of hoops 501 are respectively provided at both ends of the cylinder barrel 3 .

[0062] In this way, the fixed protective plate 1 is reliably connected to the cylinder barrel 3 through multiple sets of clamps 501, ensuring the stability of the device connection. Figure 1 and Figure 2 As for the placement position of the oil cylinder full protection device shown in the figure, the direction indicated by the arrow in the figure is the axial direction of the oil cylinder barrel 3.

[0063] In some embodiments of the present invention, Figure 2 As shown, the full cylinder guard device also includes a fixing base 9, which is positioned at the end of the cylinder piston rod 4 away from the fixed guard plate 1. The other end of the sliding guard plate 2 is detachably connected to the fixing base 9. Specifically, the fixing base 9 is designed as a fixed column. The fixing column and the sliding guard plate 2 are provided with corresponding third mounting holes 11 adapted for fasteners. The sliding guard plate 2 and the fixing base 9 are connected together by inserting fasteners, such as bolts, into the corresponding third mounting holes 11. This arrangement improves the convenience of installation through the interaction between the fixing base 9 and the sliding guard plate 2, and facilitates the removal of the sliding guard plate 2.

[0064] In summary, the embodiment of the present invention provides a complete protection device for an oil cylinder, including a fixed protection plate 1, a sliding protection plate 2, a locking mechanism 5, and a wear-resistant part 6. Figure 1 and Figure 2, the fixed protective plate 1 is fixed to the cylinder barrel 3 by a pair of clamps 501. One end of the pair of clamps 501 is directly hooked, and the other end is locked by a set of bolt assemblies and clamped on the cylinder barrel 3, which facilitates the installation and disassembly of the fixed protective plate 1. The fixed protective plate 1 directly forms the slide 102 through a bending process, which simplifies the design and reduces the number of parts. One end of the sliding protective plate 2 is embedded with a nylon wear-resistant block through the clamping part 7 and extends into the slide 102, and the other end is detachably connected to the fixed seat 9 at the end of the piston rod through a set of bolt assemblies. The sliding protective plate 2 contacts the fixed protective plate 1 through the nylon wear-resistant block and reciprocates with the piston rod, effectively improving the contact conditions between the sliding protective plate 2 and the fixed protective plate 1.

[0065] In this embodiment, the fixed guard plate 1 is directly fixed to the cylinder barrel via a clamp 501, eliminating the need for welding multiple flanges to the cylinder barrel. This reduces the precision required for assembly and disassembly of the fixed guard plate 1 and the cylinder barrel, making assembly and disassembly easy. To replace the nylon wear block, simply separate the sliding guard plate 2 from the fixing base 9 and pull the entire sliding guard plate 2 out in the direction of the piston rod's reciprocating motion.

[0066] During operation, the sliding guard plate 2 is mounted on the cylinder piston rod 4 and reciprocates with it, protecting it. The fixed guard plate 1 is secured to the cylinder barrel 3 via a pair of clamps 501, protecting the barrel 3 and its accessories. The sliding guard plate 2 slides in contact with the fixed guard plate 1 via a nylon wear block, effectively improving contact conditions between the two plates.

[0067] According to the embodiments of the present invention, on the other hand, a working machine is also provided. It is understandable that the working machine includes but is not limited to cranes, loaders, excavators, etc. Specifically, taking the excavator as an example to illustrate this embodiment, the working machine includes the oil cylinder full protection device as described in the above embodiments. In this way, the fixed protective plate 1 and the sliding protective plate 2 cooperate with each other to form an oil cylinder full protection structure, effectively realizing the protection function of the full working range, and the fixed protective plate 1 and the oil cylinder barrel 3 are locked or unlocked by the locking mechanism 5, and the locking mechanism 5 and the oil cylinder barrel 3 are detachable, so that the fixed protective plate 1 and the oil cylinder barrel 3 can be quickly connected and separated without changing the original structure of the cylinder barrel, reducing the processing difficulty, facilitating assembly, improving the versatility of the oil cylinder, and facilitating later maintenance. The derivation process of this beneficial effect is roughly similar to the derivation process of the beneficial effect of the above-mentioned oil cylinder full protection device, so it will not be repeated here.

[0068] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A full protection device for an oil cylinder, characterized in that: include: A fixed protective plate (1) is arranged on the cylinder barrel (3); A sliding protective plate (2) is slidably connected to the fixed protective plate (1) at one end and connected to the oil cylinder piston rod (4) at the other end, and the sliding protective plate (2) and the oil cylinder piston rod (4) move synchronously with each other; A wear-resistant part (6) is provided on the sliding protective plate (2), and the wear-resistant part (6) is slidably connected to the fixed protective plate (1); Matching clamping parts (7) and clamping grooves (8), one of the sliding protection plate (2) and the wear-resistant part (6) is provided with the clamping part (7), and the other is provided with the clamping groove (8), and the clamping part (7) is inserted into the clamping groove (8).

2. The full protection device for the oil cylinder according to claim 1, characterized in that: Also includes: A pair of grooves (12) are respectively provided on both sides of the clamping portion (7); the clamping portion (7) is provided on the sliding protective plate (2); and when the clamping portion (7) is inserted into the clamping groove (8), the wear-resistant part (6) extends into the pair of grooves (12).

3. The oil cylinder full protection device according to claim 1, characterized in that: The fixed protective plate (1) has a slideway (102) adapted to the wear-resistant part (6), and the wear-resistant part (6) is slidably arranged in the slideway (102).

4. The oil cylinder full protection device according to any one of claims 1 to 3, characterized in that: Also includes: A locking mechanism (5) is used to lock or unlock the fixed protective plate (1) and the oil cylinder barrel (3); the locking mechanism (5) and the oil cylinder barrel (3) can be separated and the locking mechanism (5) can be switched between a locked state and an unlocked state; in the locked state, the fixed protective plate (1) is fixedly connected to the oil cylinder barrel (3); in the unlocked state, the fixed protective plate (1) is separated from the oil cylinder barrel (3).

5. The oil cylinder full protection device according to claim 4, characterized in that: The locking mechanism (5) comprises: A pair of clamping hoops (501) are arranged opposite to each other, wherein a clamping space for clamping the oil cylinder barrel (3) is formed between the pair of clamping hoops (501), one of the clamping hoops (501) is connected to the fixed protective plate (1), and the pair of clamping hoops (501) can be detachably connected to clamp or loosen the oil cylinder barrel (3); In the locked state, the pair of hoops (501) are engaged to clamp the oil cylinder barrel (3); in the unlocked state, the pair of hoops (501) are separated to loosen the oil cylinder barrel (3).

6. The oil cylinder full protection device according to claim 5, characterized in that: One end of a pair of the hoops (501) is connected to each other, and the other end is detachably connected.

7. The oil cylinder full protection device according to claim 5, characterized in that: Also includes: A first ear plate (101) is provided on the fixed protective plate (1); The second ear plate (502) is arranged on one of the clamps (501) and is connected to the first ear plate (101).

8. The oil cylinder full protection device according to claim 5, characterized in that: There are at least two pairs of clamps (501), which are spaced apart along the axial direction of the oil cylinder barrel (3).

9. The oil cylinder full protection device according to any one of claims 1 to 3, characterized in that: Also includes: A fixed seat (9) is arranged at one end of the oil cylinder piston rod (4) away from the fixed protective plate (1), and the other end of the sliding protective plate (2) is detachably connected to the fixed seat (9).

10. A working machine, characterized in that: The invention comprises the full cylinder protection device as claimed in any one of claims 1 to 9.

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