Hydraulic cylinder external protection assembly

Abstract

The utility model provides hydraulic cylinder external protection assembly relates to protection device technical field, including base, upper protection cover, lower protection cover and hydraulic cylinder body, the top surface fixed mounting of base has lower protection cover, the top movable mounting of lower protection cover has upper protection cover, the inside setting of upper protection cover and lower protection cover installs hydraulic cylinder body, the surface fixed mounting of hydraulic cylinder body has fixed block, between base and lower protection cover fixed mounting has connecting block, the inside of connecting block is equipped with fixed groove, the side surface insertion of connecting block has limit rod, the side surface insertion of connecting block has guide rod, the outer end fixed mounting of limit rod and guide rod has connecting plate, the surface of limit rod is equipped with tension spring, the surface of fixed block is equipped with fixed hole, avoids hydraulic cylinder body to shake in upper protection cover and lower protection cover and influences the connection stability.

Description

Technical Field

[0001] This utility model relates to the field of protection device technology, and in particular to an external protection component for hydraulic cylinders. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy to perform linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. Common hydraulic cylinder protection devices include protective covers, dust covers, buffer pads, and limit mechanisms.

[0003] Chinese Patent Publication No. CN211288317U discloses a dustproof protection device for a hydraulic cylinder, including a protective cylinder body. One end of the protective cylinder body is threadedly connected to a front protective cover, and the other end of the protective cylinder body is threadedly connected to a rear protective cover. A fixed base is welded to the bottom of the protective cylinder body. Dustproof iron hoops are fixedly installed at both ends of the outer surface of the protective cylinder body. A dustproof pad is fixedly connected to the inner side of the dustproof iron hoops. A piston rod opening is provided at the top of the front protective cover. An adjustable mounting base is fixedly connected inside the protective cylinder body. A hydraulic cylinder placement platform is fixedly connected above the adjustable mounting base. A positioning iron hoop is welded to the upper surface of the hydraulic cylinder placement platform. A dustproof groove is welded to the outer surface of the bottom of the rear protective cover.

[0004] In this existing design, although the hydraulic cylinder can be isolated from the outside world during use by the cooperation of the protective cylinder body, front protective cover and rear protective cover, thus playing a role in dust prevention, ensuring the functional stability of the hydraulic cylinder and extending its service life, and the dustproof wiping cloth can wipe away the dust attached to the piston rod to prevent dust from entering the hydraulic cylinder with the piston rod, traditional protective covers mostly adopt a fixed or simple threaded connection structure, which is cumbersome to disassemble, increases maintenance time and cost, and in frequent maintenance scenarios, the threads of the positioning iron hoop are easily worn due to repeated disassembly and assembly, affecting the sealing effect. In addition, the hydraulic cylinder is fixed in the protective cover, and when it is hit or shaken, it is easy for the hydraulic cylinder to shift or loosen.

[0005] Therefore, an external protective component for the hydraulic cylinder was designed to solve the above problems. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides an external protective component for hydraulic cylinders, which improves the connection stability between the protective cover and the hydraulic cylinder body.

[0007] This utility model adopts the following technical solution: an external protective assembly for a hydraulic cylinder, including a base, an upper protective cover, a lower protective cover, and a hydraulic cylinder body. The lower protective cover is fixedly installed on the top surface of the base, and the upper protective cover is movably installed on the top of the lower protective cover. The hydraulic cylinder body is installed inside the upper and lower protective covers. A fixing block is fixedly installed on the surface of the hydraulic cylinder body. A connecting block is fixedly installed between the base and the lower protective cover. A fixing groove is opened inside the connecting block. A limiting rod is inserted into the side of the connecting block. A guide rod is inserted into the side of the connecting block. A connecting plate is fixedly installed on the outer end of the limiting rod and the guide rod. A tension spring is sleeved on the surface of the limiting rod. A fixing hole is opened on the surface of the fixing block.

[0008] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, a sealing ring is installed between the upper protective cover and the lower protective cover.

[0009] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, the shape and size of the fixing block and the fixing groove are matched.

[0010] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, there are two sets of limiting rods and two sets of guide rods. The two sets of limiting rods and two sets of guide rods are symmetrically arranged on the side of the connecting block, wherein each set of limiting rods and each set of guide rods is vertically distributed.

[0011] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, there are two sets of fixing holes, and the shape and size of the two sets of fixing holes correspond to the limiting rod and the guide rod, respectively.

[0012] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, one end of the tension spring is fixedly connected to the side of the connecting block, and the other end of the tension spring is fixedly connected to the surface of the connecting plate.

[0013] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, a pull ring is fixedly installed on the side of the connecting plate.

[0014] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, the upper protective cover and the lower protective cover are provided with a number of heat dissipation grooves on the side away from the output end of the hydraulic cylinder body, and a dust cover is threadedly connected to the side of the upper protective cover and the lower protective cover away from the output end of the hydraulic cylinder body.

[0015] As a preferred embodiment of the external protective component for the hydraulic cylinder of this utility model, the surface of the dust cover is fixedly equipped with a locking block.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows: the hydraulic cylinder body can be fixed inside the lower protective cover by the fixing block and fixing groove. It is provided with a connecting block, limiting rod, guide rod, connecting plate and fixing hole. The limiting rod and guide rod can be inserted into the fixing hole to fix the fixing block, so as to prevent the hydraulic cylinder body from shaking inside the upper and lower protective covers and affecting the connection stability. Under the action of the tension spring itself, the limiting rod can be automatically reset to the fixing hole. A pull ring is also installed on the side of the connecting plate to facilitate pulling the connecting plate and to release the fixing block, thereby facilitating the disassembly of the hydraulic cylinder body. Attached Figure Description

[0017] Figure 1 A schematic diagram illustrating the external protective component for the hydraulic cylinder proposed in this utility model;

[0018] Figure 2 A top view of the lower protective cover of the external protective component for the hydraulic cylinder proposed in this utility model;

[0019] Figure 3 A schematic diagram of the hydraulic cylinder body for proposing the external protection component for the hydraulic cylinder according to this utility model;

[0020] Figure 4 The right view of the external protective component for the hydraulic cylinder proposed in this utility model;

[0021] Figure 5 This utility model proposes an external protective component for hydraulic cylinders. Figure 4 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Base; 2. Upper protective cover; 3. Lower protective cover; 4. Hydraulic cylinder body; 5. Fixing block; 6. Connecting block; 7. Fixing groove; 8. Limiting rod; 9. Guide rod; 10. Connecting plate; 11. Tension spring; 12. Fixing hole; 13. Pull ring; 14. Heat dissipation groove; 15. Dust cover; 16. Locking block. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1

[0027] In the existing technology, the existing hydraulic cylinder dust protection device includes a protective cylinder body, a front protective cover, a rear protective cover threaded to the other end of the protective cylinder body, a fixed base welded to the bottom of the protective cylinder body, dustproof iron hoops fixedly installed at both ends of the outer surface of the protective cylinder body, dustproof pads fixedly connected to the inner side of the dustproof iron hoops, a piston rod opening provided at the top of the front protective cover, an adjustable mounting base fixedly connected inside the protective cylinder body, a hydraulic cylinder placement platform fixedly connected above the adjustable mounting base, a positioning iron hoop welded to the upper surface of the cylinder placement platform, and a dustproof groove welded to the outer surface of the bottom of the rear protective cover. Through the coordinated arrangement of the protective cylinder body, the front protective cover, and the rear protective cover, the hydraulic cylinder can be isolated from the outside environment during use, thereby playing a dustproof role, ensuring the functional stability of the hydraulic cylinder, and extending the service life of the hydraulic cylinder. The dustproof wiping cloth can wipe away the dust attached to the piston rod, preventing dust from entering the hydraulic cylinder along with the piston rod.

[0028] This application incorporates the aforementioned prior art, such as Figures 1 to 5 As shown, this utility model provides a technical solution: an external protective assembly for a hydraulic cylinder, including a base 1, an upper protective cover 2, a lower protective cover 3, and a hydraulic cylinder body 4. The lower protective cover 3 is fixedly installed on the top surface of the base 1, and the upper protective cover 2 is movably installed on the top of the lower protective cover 3. The hydraulic cylinder body 4 is installed inside the upper protective cover 2 and the lower protective cover 3. A fixing block 5 is fixedly installed on the surface of the hydraulic cylinder body 4. A connecting block 6 is fixedly installed between the base 1 and the lower protective cover 3. A fixing groove 7 is opened inside the connecting block 6. A limiting rod 8 is inserted into the side of the connecting block 6. A guide rod 9 is inserted into the side of the connecting block 6. A connecting plate 10 is fixedly installed on the outer end of the limiting rod 8 and the guide rod 9. A tension spring 11 is sleeved on the surface of the limiting rod 8. A fixing hole 12 is opened on the surface of the fixing block 5.

[0029] In this implementation scheme: the hydraulic cylinder body 4 can be fixed inside the lower protective cover 3 by means of the fixing block 5 and the fixing groove 7. A connecting block 6, a limiting rod 8, a guide rod 9, a connecting plate 10 and a fixing hole 12 are provided. The limiting rod 8 and the guide rod 9 can be inserted into the fixing hole 12 to fix the fixing block 5, so as to prevent the hydraulic cylinder body 4 from shaking inside the upper protective cover 2 and the lower protective cover 3 and affecting the connection stability. Under the action of the tension spring 11, the limiting rod 8 can automatically return to the fixing hole 12. A pull ring 13 is also installed on the side of the connecting plate 10 to facilitate pulling the connecting plate 10 and to facilitate the release of the fixing block 5, thereby facilitating the disassembly of the hydraulic cylinder body 4 and preventing the hydraulic cylinder body 4 from shifting or loosening due to vibration or impact.

[0030] Combining the above solutions:

[0031] Furthermore:

[0032] like Figures 1 to 4 As shown;

[0033] In an optional embodiment, a sealing ring is installed between the upper protective cover 2 and the lower protective cover 3 to avoid affecting the dustproof effect.

[0034] In this embodiment, a sealing ring is installed between the upper protective cover 2 and the lower protective cover 3, which can improve the sealing effect between the upper protective cover 2 and the lower protective cover 3 and prevent dust from entering from the joint after the upper protective cover 2 and the lower protective cover 3 are installed.

[0035] Combining the above solutions:

[0036] Furthermore:

[0037] like Figures 2 to 3 As shown;

[0038] In order to fix the hydraulic cylinder body 4 inside the lower protective cover 3, in an optional embodiment, the shape and size of the fixing block 5 and the fixing groove 7 are matched.

[0039] In this embodiment, the shapes and sizes of the fixing block 5 and the fixing groove 7 are matched, so that the fixing block 5 can be inserted into the fixing groove 7, thereby initially fixing the hydraulic cylinder body 4 inside the lower protective cover 3.

[0040] Combining the above solutions:

[0041] Furthermore:

[0042] like Figure 2 , Figure 4 and Figure 5 As shown;

[0043] To improve the fixing effect, in an optional embodiment, there are two sets of limiting rods 8 and guide rods 9. The two sets of limiting rods 8 and the two sets of guide rods 9 are symmetrically arranged on the side of the connecting block 6, wherein each set of limiting rods 8 and each set of guide rods 9 are vertically distributed.

[0044] In this embodiment, there are two sets of limiting rods 8 and guide rods 9. The two sets of limiting rods 8 and the two sets of guide rods 9 are symmetrically arranged on the side of the connecting block 6. Each set of limiting rods 8 and each set of guide rods 9 is vertically distributed. By cooperating with the fixing holes 12, the fixing block 5 is fixed, which can improve the firmness of the connection.

[0045] Combining the above solutions:

[0046] Furthermore:

[0047] like Figure 3 As shown;

[0048] In an optional embodiment, in order to be fixed by the limiting rod 8 and the guide rod 9, there are two sets of fixing holes 12, the shape and size of which correspond to the limiting rod 8 and the guide rod 9, respectively.

[0049] In this embodiment, there are two sets of fixing holes 12. The shape and size of the two sets of fixing holes 12 correspond to the limiting rod 8 and the guide rod 9, respectively, so that the limiting rod 8 and the guide rod 9 can be inserted into the fixing holes 12 to fix the fixing block 5.

[0050] Combining the above solutions:

[0051] Furthermore:

[0052] like Figures 4 to 5 As shown;

[0053] In order to enable the connecting plate 10 to reset when the tension spring 11 returns to its original position, in an optional embodiment, one end of the tension spring 11 is fixedly connected to the side of the connecting block 6, and the other end of the tension spring 11 is fixedly connected to the surface of the connecting plate 10.

[0054] In this embodiment: one end of the tension spring 11 is fixedly connected to the side of the connecting block 6, and the other end of the tension spring 11 is fixedly connected to the surface of the connecting plate 10. When the pull ring 13 is released, the connecting plate 10 can be automatically reset under the action of the tension spring 11 itself. At the same time, the connecting plate 10 drives the limiting rod 8 and the guide rod 9 to move into the fixing hole 12 until the fixing block 5 is fixed in the fixing groove 7.

[0055] Combining the above solutions:

[0056] Furthermore:

[0057] like Figures 4 to 5 As shown;

[0058] To facilitate pulling the connecting plate 10, in an optional embodiment, a pull ring 13 is fixedly installed on the side of the connecting plate 10.

[0059] In this embodiment: a pull ring 13 is installed on the side of the connecting plate 10 to facilitate the movement of the connecting plate 10 by pulling the pull ring 13.

[0060] Combining the above solutions:

[0061] Furthermore:

[0062] like Figure 2 and Figure 4 As shown;

[0063] In order to simultaneously achieve heat dissipation and dust prevention, in an optional embodiment, several sets of heat dissipation grooves 14 are provided on the side of the upper protective cover 2 and the lower protective cover 3 away from the output end of the hydraulic cylinder body 4, and a dust cover 15 is threadedly connected to the side of the upper protective cover 2 and the lower protective cover 3 away from the output end of the hydraulic cylinder body 4.

[0064] In this embodiment, several sets of heat dissipation grooves 14 are opened on the sides of the upper protective cover 2 and the lower protective cover 3, which can improve the heat dissipation effect of the upper protective cover 2 and the lower protective cover 3 and prevent the hydraulic cylinder body 4 from overheating and affecting normal use. Dust covers 15 are also threadedly connected to the sides of the upper protective cover 2 and the lower protective cover 3, which can be easily removed and cleaned by rotating the dust covers 15.

[0065] Combining the above solutions:

[0066] Furthermore:

[0067] like Figure 4 As shown;

[0068] To facilitate the removal of the dust cover 15, in an optional embodiment, a locking block 16 is fixedly mounted on the surface of the dust cover 15.

[0069] In this embodiment: a locking block 16 is installed on the surface of the dust cover 15. When the dust cover 15 needs to be removed, simply rotate the locking block 16 to remove the dust cover 15 from the side of the upper protective cover 2 and the lower protective cover 3 for cleaning.

[0070] Working principle: In use, first open the upper protective cover 2, then pull the pull ring 13. The pull ring 13 moves the connecting plate 10, which in turn moves the limiting rod 8 and the guide rod 9 outward. Then, place the hydraulic cylinder body 4 into the lower protective cover 3, so that the fixing block 5 is inserted into the fixing groove 7. At this time, release the pull ring 13. Under the action of the tension spring 11, the pull ring 13 moves the connecting plate 10, which in turn moves the limiting rod 8 and the guide rod 9. At this time, the limiting rod 8 and the guide rod 9... Insert all parts into the fixing holes 12 until the tension spring 11 is fully restored. The fixing block 5 can then be fixed in the fixing groove 7, and the hydraulic cylinder body 4 can be fixed in the lower protective cover 3. Then, place the upper protective cover 2 on top of the lower protective cover 3 and fix it. After long-term use, manually rotate the locking block 16. The locking block 16 will drive the dust cover 15 to rotate until the dust cover 15 is removed from the side of the upper protective cover 2 and the lower protective cover 3. Then, the dust cover 15 and the heat dissipation holes can be cleaned to avoid affecting the heat dissipation effect.

[0071] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An external protective assembly for a hydraulic cylinder, comprising a base (1), an upper protective cover (2), a lower protective cover (3), and a hydraulic cylinder body (4), characterized in that: A lower protective cover (3) is fixedly installed on the top surface of the base (1). An upper protective cover (2) is movably installed on the top of the lower protective cover (3). A hydraulic cylinder body (4) is installed inside the upper protective cover (2) and the lower protective cover (3). A fixing block (5) is fixedly installed on the surface of the hydraulic cylinder body (4). A connecting block (6) is fixedly installed between the base (1) and the lower protective cover (3). A fixing groove (7) is opened inside the connecting block (6). A limiting rod (8) is inserted into the side of the connecting block (6). A guide rod (9) is inserted into the side of the connecting block (6). A connecting plate (10) is fixedly installed at the outer end of the limiting rod (8) and the guide rod (9). A tension spring (11) is sleeved on the surface of the limiting rod (8). A fixing hole (12) is opened on the surface of the fixing block (5).

2. The external protective assembly for hydraulic cylinders according to claim 1, characterized in that: A sealing ring is installed between the upper protective cover (2) and the lower protective cover (3).

3. The external protection assembly for hydraulic cylinders according to claim 2, characterized in that: The shape and size of the fixing block (5) and the fixing groove (7) are matched.

4. The external protection assembly for hydraulic cylinders according to claim 3, characterized in that: The number of the limiting rod (8) and the guide rod (9) are both two sets. The two sets of the limiting rod (8) and the two sets of the guide rod (9) are symmetrically arranged on the side of the connecting block (6), wherein each set of the limiting rod (8) and each set of the guide rod (9) are vertically distributed.

5. The external protection assembly for hydraulic cylinders according to claim 4, characterized in that: There are two sets of fixing holes (12), and the shape and size of the two sets of fixing holes (12) correspond to the limiting rod (8) and the guide rod (9), respectively.

6. The external protection assembly for hydraulic cylinders according to claim 5, characterized in that: One end of the tension spring (11) is fixedly connected to the side of the connecting block (6), and the other end of the tension spring (11) is fixedly connected to the surface of the connecting plate (10).

7. The external protection assembly for hydraulic cylinders according to claim 6, characterized in that: A pull ring (13) is fixedly installed on the side of the connecting plate (10).

8. The external protection assembly for hydraulic cylinders according to claim 7, characterized in that: The upper protective cover (2) and the lower protective cover (3) are provided with a number of heat dissipation grooves (14) on the side away from the output end of the hydraulic cylinder body (4), and a dust cover (15) is threadedly connected to the side of the upper protective cover (2) and the lower protective cover (3) away from the output end of the hydraulic cylinder body (4).

9. The external protection assembly for hydraulic cylinders according to claim 8, characterized in that: The surface of the dust cover (15) is fixedly fitted with a clip (16).

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