Stroke stop block for efficiently controlling stroke of oil cylinder

By combining a connecting plate, a stroke baffle, bolts, and a pin, the problem of inconvenient disassembly and wear of existing hydraulic cylinder stroke baffles is solved, enabling convenient adjustment and precise depth limiting, and extending service life.

CN224002982UActive Publication Date: 2026-03-17XUZHOU ZHONGYANG AGRI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing hydraulic cylinder stroke stop is inconvenient to disassemble and use, and the parts are prone to wear, making it difficult to accurately control the stroke.

Method used

It adopts a combination structure of connecting plate, stroke baffle, bolt and pin. The stroke baffle is fixed by bolt and the unused baffle is locked by pin to prevent shaking. Combined with the bayonet and piston rod, it can realize convenient adjustment and precise depth limit.

Benefits of technology

It enables convenient adjustment of the stroke stop, reduces wear on parts, extends service life, and allows for more precise control of the cylinder stroke.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stroke stop dog for efficiently controlling the stroke of an oil cylinder, which comprises the oil cylinder and a stop dog body, a cylinder head is arranged on a piston rod of the oil cylinder, the stop dog body is arranged on the cylinder head, the stop dog body comprises a connecting plate, a stroke stop piece, a bolt and a pin shaft, the connecting plate is arranged on the cylinder head, and the stroke stop piece is arranged on the connecting plate. A first connecting hole and a second connecting hole are formed in the connecting plate, a third connecting hole and a fourth connecting hole are formed in the stroke blocking pieces, the stroke blocking pieces and the connecting plate are fixed together by the bolts through the first connecting hole and the third connecting hole, and the stroke blocking pieces are connected with the connecting plate through the bolts. And the pin shaft can be inserted into the second connecting hole and the fourth connecting hole. The utility model relates to the technical field of stroke stop blocks, in particular to a stroke stop block capable of efficiently controlling the stroke of an oil cylinder, which is convenient and easy to adjust, time-saving and labor-saving, does not easily abrade parts, and can accurately limit the depth.
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Description

Technical Field

[0001] This utility model relates to the field of stroke stop technology, specifically to a stroke stop for efficiently controlling the stroke of a hydraulic cylinder. Background Technology

[0002] The main function of a hydraulic cylinder stroke stop is to limit the maximum stroke of the piston, preventing it from exceeding its design range and thus protecting the cylinder and related components from damage. Specifically, the stroke stop physically blocks the piston to ensure it stops moving when it reaches a preset position, preventing further movement that could cause mechanical damage or malfunction. This design is widely used in various mechanical devices, especially in applications requiring precise control of movement distance.

[0003] The existing hydraulic cylinder stroke stop is composed of several sets of stroke baffles, each set of stroke baffles is provided with a fixing hole, and several sets of stroke baffles are connected together through this fixing hole. On the one hand, when disassembling and adjusting this type of stroke stop, the stroke baffles need to be removed one by one and held by hand, which is quite troublesome. On the other hand, the unused stroke baffles will naturally droop around the fixing point under the action of gravity, causing the stroke baffles to swing back and forth during operation, contact and rub against the hydraulic cylinder, and wear down the parts. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a stroke stop that is easy to adjust, saves time and effort, does not easily wear parts, and can accurately limit the depth of the hydraulic cylinder stroke.

[0005] The technical solution adopted by this utility model is as follows: This utility model provides a stroke stop for efficiently controlling the stroke of a hydraulic cylinder, including a hydraulic cylinder and a stop body. The piston rod of the hydraulic cylinder is provided with a cylinder head, and the stop body is provided on the cylinder head. The stop body includes a connecting plate, a stroke baffle, bolts, and a pin. The connecting plate is provided on the cylinder head and is provided with a first connecting hole and a second connecting hole. The stroke baffle is provided with a third connecting hole and a fourth connecting hole. Several sets of stroke baffles are provided. The bolts fix several sets of stroke baffles to the connecting plate through the first connecting hole and the third connecting hole. The pin can be inserted into the second connecting hole and the fourth connecting hole.

[0006] Furthermore, the stroke baffle is provided with a locking slot, and the stroke baffle is engaged with the piston rod of the hydraulic cylinder through the locking slot.

[0007] Furthermore, the connecting plate is provided with a circular connecting port, and the connecting plate is fixedly sleeved onto the cylinder head through the circular connecting port.

[0008] Furthermore, the cylinder head is welded to the connecting plate.

[0009] The beneficial effects of this utility model by adopting the above structure are as follows:

[0010] 1. Easy adjustment, saving time and effort: When adjusting the number of travel baffles, the bolts do not need to be disassembled. The number of travel baffles can be adjusted simply by pulling and inserting the pin. It is not necessary to remove them one by one, thus avoiding the situation of holding up scattered travel baffles by hand during disassembly and installation.

[0011] 2. Parts that are not easily worn and have a long service life: Two holes are opened on both the connecting plate and the stroke baffle. By inserting the pin into the second connecting hole and the fourth connecting hole on the unused stroke baffle for fixing, the position of the unused stroke baffle can be locked, preventing it from shaking at will, avoiding collision between it and the oil cylinder, and reducing wear between the two.

[0012] 3. Precise depth limit: By adjusting the number of travel baffles, the depth limit requirements can be met more precisely. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a front view showing the connection between the cylinder head and the stop block body in an embodiment of this utility model;

[0015] Figure 2 This is a top view showing the connection between the cylinder head and the stop block body in an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the oil cylinder, cylinder head, and connecting plate in an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the stroke baffle in an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the connecting plate in an embodiment of the present utility model.

[0019] Among them, 1. oil cylinder, 2. stop block body, 3. piston rod, 4. cylinder head, 5. connecting plate, 6. stroke baffle, 7. bolt, 8. pin, 9. first connecting hole, 10. second connecting hole, 11. third connecting hole, 12. fourth connecting hole, 13. bayonet, 14. circular connecting port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figures 1-5 As shown, this utility model discloses a stroke stop for efficiently controlling the stroke of a hydraulic cylinder, comprising a hydraulic cylinder 1 and a stop body 2. A cylinder head 4 is provided on the piston rod 3 of the hydraulic cylinder 1, and the stop body 2 is located on the cylinder head 4. The stop body 2 includes a connecting plate 5, stroke baffles 6, bolts 7, and pins 8. The connecting plate 5 is located on the cylinder head 4 and has a first connecting hole 9 and a second connecting hole 10. The stroke baffles 6 have a third connecting hole 11 and a fourth connecting hole 12, and several sets of stroke baffles 6 are provided. The bolts 7 fix several sets of stroke baffles 6 to the connecting plate 5 through the first connecting hole 9 and the third connecting hole 11. The pins 8 can be inserted into the second connecting hole 10 and the fourth connecting hole 12. The connecting plate 5 has a circular connecting port 14, and the connecting plate 5 is fixedly sleeved onto the cylinder head 4 through the circular connecting port 14. The cylinder head 4 is welded to the connecting plate 5.

[0023] The stroke baffle 6 is provided with a bayonet 13, and the stroke baffle 6 is engaged with the piston rod 3 of the oil cylinder 1 through the bayonet 13.

[0024] In practical use, firstly, the third connecting hole 11 of several sets of stroke baffles 6 and the first connecting hole 9 on the connecting plate 5 are fastened together with bolts 7. Then, according to the depth limit requirements, a certain number of stroke baffles 6 are rotated around the bolts 7 and locked onto the piston rod 3 of the cylinder 1 through the bayonet 13. Then, the remaining unused stroke baffles 6 are rotated around the bolts 7 so that the fourth connecting hole 12 is aligned with the second connecting hole 10. Then, the pin 8 is inserted into the second connecting hole 10 and the fourth connecting hole 12 on the unused stroke baffles 6 for fixation. This locks the position of the unused stroke baffles 6, preventing them from shaking freely and avoiding collisions with the cylinder 1, thus reducing wear between them. When adjusting the number of used baffles, simply remove the pin 8 for adjustment and then insert the pin 8 back in to fix it.

[0025] In summary, when adjusting the number of stroke baffles 6, the bolts 7 do not need to be disassembled; the number of stroke baffles 6 can be adjusted simply by inserting and removing the pins 8. This avoids the need to remove them one by one, thus preventing the need to manually handle scattered stroke baffles 6 during disassembly and installation. Two holes are provided on both the connecting plate 5 and the stroke baffles 6. By inserting the pins 8 into the second connecting hole 10 and the fourth connecting hole 12 on the unused stroke baffles 6 for fixation, the position of the unused stroke baffles 6 can be locked, preventing them from wobbling and avoiding collisions with the hydraulic cylinder 1, thereby reducing wear between the two. Adjusting the number of stroke baffles 6 allows for more precise fulfillment of depth limit requirements.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stroke stop for efficient control of the stroke of a cylinder, comprising a cylinder (1) and a stop body (2), a piston rod (3) of the cylinder (1) being provided with a cylinder head (4), the stop body (2) being arranged on the cylinder head (4), characterized in that: The stop block body (2) comprises a connecting plate (5), a stroke stop sheet (6), a bolt (7) and a pin shaft (8), the connecting plate (5) is arranged on a cylinder head (4), the connecting plate (5) is provided with a first connecting hole (9) and a second connecting hole (10), the stroke stop sheet (6) is provided with a third connecting hole (11) and a fourth connecting hole (12), the stroke stop sheet (6) is provided with a plurality of groups, the bolt (7) fixes the plurality of groups of stroke stop sheets (6) and the connecting plate (5) together through the first connecting hole (9) and the third connecting hole (11), and the pin shaft (8) can be inserted into the second connecting hole (10) and the fourth connecting hole (12).

2. The stroke stop for efficient control of the cylinder stroke according to claim 1, characterized in that The stroke stop sheet (6) is provided with a bayonet (13), and the stroke stop sheet (6) is clamped on the piston rod (3) of the oil cylinder (1) through the bayonet (13).

3. The stroke stop for efficient control of the cylinder stroke according to claim 1, characterized in that: The connecting plate (5) is provided with a circular connecting port (14), and the connecting plate (5) is fixedly sleeved on the cylinder head (4) through the circular connecting port (14).

4. The stroke stop for efficient control of the cylinder stroke according to claim 1, characterized in that: The cylinder head (4) is welded with the connecting plate (5).