Anti-collision hydraulic cylinder protection device

Abstract

The utility model relates to hydraulic pressure oil cylinder technical field, concretely is a kind of anti-collision hydraulic pressure oil cylinder protection device, comprising: cylinder body, the top of cylinder body is provided with cylinder cover, the inside of cylinder body is provided with hydraulic pressure rod, the upper end of hydraulic pressure rod is provided with connecting thread;The upper end outer wall of cylinder body is provided with connecting block, the top surface of cylinder cover is inserted with bolt, the top surface of cylinder cover is welded with threaded ring;Protective structure is installed on the cylinder cover, and the protective structure includes hand spin screw sleeve.The utility model can automatically unfold and store when hydraulic pressure rod telescopic activity by setting fixed outer sleeve, movable sleeve and corrugated sleeve on the inside of corrugated sleeve, and fixed outer sleeve, movable sleeve and corrugated sleeve are set on the outside of hydraulic pressure rod, cooperate with corrugated sleeve can be stable protection to hydraulic pressure rod, while fixed outer sleeve, movable sleeve and corrugated sleeve cooperate with each other, can provide radial protection to hydraulic pressure rod on the outside, can improve the crashworthiness of device.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to an anti-collision hydraulic cylinder protection device. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. Existing hydraulic cylinders do not have external protection functions. During the extension and retraction process, dust can enter the hydraulic cylinder through the hydraulic rod, affecting the use of the hydraulic cylinder.

[0003] In response, Chinese patent application number CN202221097121.9 discloses a hydraulic cylinder with an external protective structure, including a hydraulic cylinder, an outer protective plate, and a hydraulic rod. A support plate is fixedly connected to the outer side of one end of the outer protective plate near the center of the hydraulic cylinder, and an inner protective plate is fixedly connected to the outer side of the other end of the support plate. The inner protective plate is slidably connected to the hydraulic cylinder. A sleeve is fixedly connected to the outer side of the outer protective plate, and a positioning rod is slidably connected to the inner side of the sleeve. Through the outer protective plate, support plate, inner protective plate, and positioning rod, when the hydraulic cylinder is impacted by a foreign object, the object rests against the outer protective plate. Then, through a connecting plate, the connecting plate drives a buffer plate to prevent the foreign object from impacting the hydraulic cylinder, thus buffering the impact. The outer protective plate slides on the hydraulic cylinder, and the arc-shaped outer protective plate forces the foreign object to deflect. Furthermore, the positioning rod inside the sleeve provides mechanical buffering, and the double-layer protective plate reduces the impact of the foreign object.

[0004] The hydraulic cylinder uses a bellows to protect the hydraulic rod from the outside. However, the bellows itself has a certain degree of toughness, resulting in poor stability. When subjected to external force, the bellows will deform, causing the force to act directly on the surface of the hydraulic rod, which can easily lead to scratches on the surface of the hydraulic rod and oil leakage during use, affecting the normal user experience of the device.

[0005] Therefore, in order to solve the above problems, an anti-collision hydraulic cylinder protection device is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide an anti-collision hydraulic cylinder protection device to solve the problem mentioned in the background art that the existing hydraulic cylinder can protect the hydraulic rod on the outside by setting a bellows. However, the bellows itself has a certain toughness, so the stability is poor. When the bellows is subjected to external force, it will deform, causing the force to act directly on the surface of the hydraulic rod, which can easily cause scratches on the surface of the hydraulic rod. During use, oil leakage will occur, affecting the normal user experience of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-collision hydraulic cylinder protection device, comprising: a cylinder body, a cylinder cover at the top of the cylinder body, a hydraulic rod inside the cylinder body, and a connecting thread at the upper end of the hydraulic rod; A connecting block is provided on the upper outer wall of the cylinder body, a bolt is inserted into the top surface of the cylinder head, and a threaded ring is welded to the top surface of the cylinder head; The cylinder head is equipped with a protective structure, which includes a hand-operated screw sleeve. The hand-operated screw sleeve is movably installed on the outside of a threaded ring via a thread. A fixed outer sleeve is fixedly connected to the center of the top surface of the hand-operated screw sleeve. A movable inner sleeve is slidably installed on the inner side of the fixed outer sleeve. A hand-operated screw ring is fixedly connected to the upper end of the movable inner sleeve. A corrugated sleeve is fixedly connected to the edge of the top surface of the hand-operated screw sleeve.

[0008] Preferably, the bolt passes through the cylinder head and its bottom end is threadedly connected to the connecting block.

[0009] Preferably, the hydraulic rod penetrates the protective structure, and the bottom surface of the hand-operated screw sleeve is in contact with the top surface of the cylinder head.

[0010] Preferably, the fixed outer sleeve, the movable inner sleeve, and the movable outer sleeve are coaxially arranged with the hand-screw sleeve.

[0011] Preferably, the hand-operated screw ring is sleeved on the outside of the connecting thread and is fixedly connected to the connecting thread through the thread.

[0012] Preferably, the upper end of the corrugated sleeve is fixedly connected to the bottom surface of the hand-turned screw ring, and the corrugated sleeve is fitted on the outside of the fixed outer sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a fixed outer sleeve, a movable sleeve, and a corrugated sleeve on the inner side of the corrugated sleeve, the utility model can automatically unfold and retract when the hydraulic rod is extended and retracted. Furthermore, the fixed outer sleeve, the movable sleeve, and the corrugated sleeve are fitted on the outer side of the hydraulic rod, and together with the corrugated sleeve, they can provide stable protection for the hydraulic rod. At the same time, the fixed outer sleeve, the movable sleeve, and the corrugated sleeve cooperate with each other to provide radial protection for the hydraulic rod on the outside, which can improve the anti-collision performance of the device.

[0014] This utility model features a protective structure. The cylinder head is installed on the top of the cylinder body. Bolts are inserted into the top surface of the cylinder head and rotated to connect with the connecting block via threads. This further stabilizes the cylinder head on the top of the cylinder body, preventing it from flying off and injuring people due to excessive pressure inside the cylinder, thus ensuring the safety of the device. The hand-operated screw sleeve, movable inner sleeve, and corrugated sleeve are placed downwards on the outside of the hydraulic rod. The hand-operated screw ring is moved downwards to the outside of the connecting thread. Rotating the hand-operated screw sleeve and hand-operated screw ring allows the hand-operated screw sleeve to connect with the threaded ring, fixing the hand-operated screw sleeve to the top surface of the cylinder head. The hand-operated screw ring can be threaded onto the outside of the connecting thread, thus connecting the upper and lower ends of the corrugated sleeve. Connected to the upper end of the hydraulic rod and the top surface of the cylinder head, when the hydraulic rod extends, the upper end of the bellows sleeve can be pulled by the connecting thread and the hand-turned auger, which can unfold the bellows sleeve. The hand-turned auger will drive the movable inner sleeve to move inside the movable inner sleeve. When the bottom end of the movable inner sleeve moves to the upper end of the movable inner sleeve, the continued movement of the movable inner sleeve will drive the movable inner sleeve to move inside the fixed outer sleeve, so that the movable inner sleeve, the movable inner sleeve, and the fixed outer sleeve can unfold. The movable inner sleeve, the movable inner sleeve, and the fixed outer sleeve are respectively fitted on the outside of the hydraulic rod, which can provide radial protection for the hydraulic rod on the outside. The bellows sleeve is fitted on the outside of the hydraulic rod and the fixed outer sleeve, which can maintain the relative sealing of the inner side of the protective structure and reduce the impact of dust on the operation of the device. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a bottom view schematic diagram of the structure of the hand-operated screw sleeve of this utility model; Figure 4 This is a front view sectional diagram of the protective structure of this utility model.

[0016] In the diagram: 1. Cylinder block; 11. Connecting block; 12. Cylinder head; 13. Bolt; 14. Hydraulic rod; 15. Connecting thread; 16. Threaded ring; 2. Protective structure; 21. Hand-operated threaded sleeve; 22. Fixed outer sleeve; 23. Moving sleeve; 24. Moving inner sleeve; 25. Hand-operated threaded ring; 26. Corrugated sleeve. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 An embodiment of an anti-collision hydraulic cylinder protection device provided by this utility model: The cylinder block 1, cylinder head 12 and hydraulic rod 14 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0019] A collision-resistant hydraulic cylinder protection device includes: a cylinder body 1, a cylinder cover 12 at the top of the cylinder body 1, a hydraulic rod 14 inside the cylinder body 1, and a connecting thread 15 at the upper end of the hydraulic rod 14. A connecting block 11 is provided on the upper outer wall of the cylinder body 1, a bolt 13 is inserted into the top surface of the cylinder head 12, and a threaded ring 16 is welded to the top surface of the cylinder head 12. A protective structure 2 is installed on the cylinder head 12. The protective structure 2 includes a hand-operated screw sleeve 21, which is movably installed on the outside of the threaded ring 16 via a thread. A fixed outer sleeve 22 is fixedly connected to the middle of the top surface of the hand-operated screw sleeve 21. A movable sleeve 23 is slidably installed on the inner side of the fixed outer sleeve 22. A movable inner sleeve 24 is slidably installed on the inner side of the movable sleeve 23. A hand-operated screw ring 25 is fixedly connected to the upper end of the movable inner sleeve 24. A corrugated sleeve 26 is fixedly connected to the edge of the top surface of the hand-operated screw sleeve 21. By setting the fixed outer sleeve 22, the movable sleeve 23, and the corrugated sleeve 26 on the inner side of the corrugated sleeve 26, the hydraulic rod 14 can be automatically unfolded and retracted when it is extended and retracted. The fixed outer sleeve 22, the movable sleeve 23, and the corrugated sleeve 26 are fitted on the outside of the hydraulic rod 14. Together with the corrugated sleeve 26, they can stably protect the hydraulic rod 14. At the same time, the fixed outer sleeve 22, the movable sleeve 23, and the corrugated sleeve 26 cooperate with each other to provide radial protection for the hydraulic rod 14 on the outside, which can improve the anti-collision performance of the device.

[0020] Furthermore, bolt 13 penetrates cylinder head 12 and its bottom end is threaded to connecting block 11. Through bolt 13 and connecting block 11, cylinder head 12 and cylinder body 1 can be further stably connected.

[0021] Furthermore, the hydraulic rod 14 penetrates the protective structure 2, and the bottom surface of the hand-operated screw sleeve 21 is in contact with the top surface of the cylinder head 12, ensuring stable installation of the hand-operated screw sleeve 21 on the outside of the cylinder head 12.

[0022] Furthermore, the fixed outer sleeve 22, the movable outer sleeve 23, and the movable inner sleeve 24 are coaxially arranged with the hand-screw sleeve 21, and the movable outer sleeve 23 and the movable inner sleeve 24 can move stably up and down outside the fixed outer sleeve 22.

[0023] Furthermore, the hand-operated screw ring 25 is sleeved on the outside of the connecting thread 15 and is fixedly connected to the connecting thread 15 by the thread. The hand-operated screw ring 25, in conjunction with the connecting thread 15, provides a fixation for the connection between the upper end of the corrugated sleeve 26 and the hydraulic rod 14.

[0024] Furthermore, the upper end of the corrugated sleeve 26 is fixedly connected to the bottom surface of the hand-operated screw ring 25. The corrugated sleeve 26 is fitted on the outside of the fixed outer sleeve 22. The extension and retraction of the hydraulic rod 14 can cause the corrugated sleeve 26 to unfold or fold.

[0025] Working principle: During assembly, the cylinder head 12 is installed on the top of the cylinder body 1. The bolt 13 is inserted into the top surface of the cylinder head 12 and rotated. The bolt 13 can be threadedly connected to the connecting block 11, which can further stabilize the cylinder head 12 on the top of the cylinder body 1. This can prevent the cylinder head 12 from flying off and injuring people due to excessive pressure on the inside of the cylinder body 1, thus ensuring the safety of the device. The hand-operated sleeve 21, movable inner sleeve 24, and corrugated sleeve 26 are fitted downwards onto the outside of the hydraulic rod 14. The hand-operated ring 25 is moved downwards to the outside of the connecting thread 15. By rotating the hand-operated sleeve 21 and the hand-operated ring 25, the hand-operated sleeve 21 can be threadedly connected to the threaded ring 16, thus fixing the hand-operated sleeve 21 to the top surface of the cylinder head 12. The hand-operated ring 25 can be threaded onto the outside of the connecting thread 15, meaning that the upper and lower ends of the corrugated sleeve 26 can be connected to the upper end of the hydraulic rod 14 and the top surface of the cylinder head 12, respectively. When the hydraulic rod 14 extends, the upper end of the corrugated sleeve 26 can be pulled through the connecting thread 15 and the hand-operated ring 25, causing the corrugated sleeve 26 to unfold. Furthermore, the hand-rotating screw ring 25 will cause the movable inner sleeve 24 to move inside the movable inner sleeve 23. When the bottom end of the movable inner sleeve 24 moves to the top end of the movable inner sleeve 23, the continued movement of the movable inner sleeve 24 will cause the movable inner sleeve 23 to move inside the fixed outer sleeve 22, so that the movable inner sleeve 24, the movable inner sleeve 23 and the fixed outer sleeve 22 are unfolded. The movable inner sleeve 24, the movable inner sleeve 23 and the fixed outer sleeve 22 are respectively fitted on the outside of the hydraulic rod 14, which can provide radial protection for the hydraulic rod 14 on the outside. The corrugated sleeve 26 is fitted on the outside of the hydraulic rod 14 and the fixed outer sleeve 22, which can keep the inner side of the protective structure 2 relatively sealed and reduce the impact of dust on the operation of the device.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A collision-resistant hydraulic cylinder protection device, comprising: A cylinder body (1) is provided with a cylinder cover (12) at the top of the cylinder body (1), and a hydraulic rod (14) is provided on the inner side of the cylinder body (1), with a connecting thread (15) at the upper end of the hydraulic rod (14). Its features are: A connecting block (11) is provided on the upper outer wall of the cylinder body (1), a bolt (13) is inserted into the top surface of the cylinder cover (12), and a threaded ring (16) is welded to the top surface of the cylinder cover (12). The cylinder head (12) is equipped with a protective structure (2), which includes a hand-operated screw sleeve (21). The hand-operated screw sleeve (21) is installed on the outside of the threaded ring (16) by means of a thread. A fixed outer sleeve (22) is fixedly connected to the middle of the top surface of the hand-operated screw sleeve (21). A movable sleeve (23) is slidably installed on the inner side of the fixed outer sleeve (22). A movable inner sleeve (24) is slidably installed on the inner side of the movable sleeve (23). A hand-operated screw ring (25) is fixedly connected to the upper end of the movable inner sleeve (24). A corrugated sleeve (26) is fixedly connected to the edge of the top surface of the hand-operated screw sleeve (21).

2. The anti-collision hydraulic cylinder protection device according to claim 1, characterized in that: The bolt (13) passes through the cylinder head (12) and its bottom end is threadedly connected to the connecting block (11).

3. The anti-collision hydraulic cylinder protection device according to claim 1, characterized in that: The hydraulic rod (14) penetrates the protective structure (2), and the bottom surface of the hand-operated screw sleeve (21) is in contact with the top surface of the cylinder head (12).

4. The anti-collision hydraulic cylinder protection device according to claim 1, characterized in that: The fixed outer sleeve (22), the movable inner sleeve (23), and the movable outer sleeve (24) are coaxially arranged with the hand-screw sleeve (21).

5. The anti-collision hydraulic cylinder protection device according to claim 1, characterized in that: The hand-operated screw ring (25) is sleeved on the outside of the connecting thread (15) and is fixedly connected to the connecting thread (15) through the thread.

6. The anti-collision hydraulic cylinder protection device according to claim 1, characterized in that: The upper end of the corrugated sleeve (26) is fixedly connected to the bottom surface of the hand-turned screw ring (25), and the corrugated sleeve (26) is fitted on the outside of the fixed outer sleeve (22).

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