Oil cylinder jacking device

Abstract

The utility model relates to an oil cylinder jacking device, and belongs to the field of hydraulic system maintenance equipment. According to the technical scheme, the oil cylinder jacking device comprises a supporting sleeve body, the cross section of the supporting sleeve body is in a U shape, the supporting sleeve body comprises a connecting plate and side plates located on the two sides of the connecting plate, at least two connecting pins are arranged between the two side plates, and the two ends of each connecting pin are connected with the two side plates in an inserted mode respectively. The supporting sleeve has the advantages that the supporting sleeve body is arranged on the oil cylinder telescopic rod in a sleeving mode, if the oil cylinder retracts due to accidental pressure loss, a structure supported by the telescopic rod or a connecting structure at the end of the telescopic rod can be supported by the supporting sleeve body and cannot directly and completely retract, then the safety height during operation is increased through the supporting sleeve body, and the safety of operators is guaranteed; meanwhile, the scheme adopts an external design, the structure of the oil cylinder does not need to be improved or replaced, meanwhile, the structure of the oil cylinder is simple and ingenious, and the use cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system maintenance equipment, and in particular to a cylinder support device. Background Technology

[0002] Hydraulic cylinders play a crucial role in equipment manufacturing, enabling specific actions such as lifting and rotation. However, they also carry inherent risks. Especially when the cylinder is raised, maintenance work is performed around the cylinder and under the raised equipment. For example, when repairing the chassis components of a tractor unit, the cab needs to be tilted. The hydraulic cylinders that drive and support this tilting pose a risk of depressurization and falling. A falling cylinder and equipment could injure workers below.

[0003] The current solution to this problem is to incorporate a mechanical locking device into the structure of the hydraulic cylinder. This device provides rigid support after the hydraulic system is depressurized, preventing the hydraulic cylinder from suddenly retracting. For example, patent CN214742466U describes a hydraulic cylinder with a locking function. It has a pin structure between the cylinder barrel and the telescopic rod. When locking is required, pressing a switch on the outside of the cylinder barrel causes the pin to insert into a hole on the side of the telescopic rod, thus achieving locking.

[0004] Most existing technologies, represented by this patent, achieve mechanical locking through the structural design of the hydraulic cylinder itself, which to some extent increases the structural complexity and design difficulty of the hydraulic cylinder. Moreover, as in the aforementioned patent, the pin penetrates through the cylinder barrel of the hydraulic cylinder, which to some extent reduces the sealing performance of the cylinder barrel. Furthermore, for some ordinary hydraulic cylinders without limit switches, replacement would require a significant cost. Utility Model Content

[0005] This utility model addresses the problem that current hydraulic cylinder locking devices are generally based on the structure of the hydraulic cylinder itself, which is relatively complex and has high replacement costs for older equipment. It provides an independently mounted hydraulic cylinder support device.

[0006] To solve the above problems, the technical solution adopted by this utility model is a hydraulic cylinder support device, including a support sleeve body. The cross-section of the support sleeve body is U-shaped, including a connecting plate and side plates located on both sides of the connecting plate. At least two connecting pins are provided between the two side plates, and the two ends of the connecting pins are respectively inserted into the two side plates. In this solution, the support sleeve body is fitted onto the hydraulic cylinder telescopic rod. If the hydraulic cylinder unexpectedly loses pressure and retracts, the structure supported by the telescopic rod or the connecting structure at the end of the telescopic rod will be supported by the support sleeve body, preventing it from retracting completely. This increases the safe operating height and ensures the safety of the operator. At the same time, this solution adopts an external design, eliminating the need for structural modifications or replacements to the hydraulic cylinder itself. Furthermore, its simple and ingenious structure greatly reduces the cost of use.

[0007] As a preferred implementation of the hydraulic cylinder support device, the connecting plate and the two side plates are integrally bent structures. The main body of the support sleeve is an integral structure, which greatly improves the overall structural strength, reduces weak points that may be caused by splicing, further enhances the reliability of the device during support, reduces the risk of device damage under high-intensity operation, and thus ensures the continuous safety of operators during operation.

[0008] As a preferred embodiment of the hydraulic cylinder support device, the U-shaped interior of the support sleeve body is provided with reinforcing ribs. These reinforcing ribs are U-shaped and are fixedly connected to both the connecting plate and the two side plates. The reinforcing ribs protrude inwards relative to the inner surfaces of the connecting plate and the two side plates. By incorporating these reinforcing ribs, the load-bearing capacity of the support sleeve body is significantly improved, enabling it to withstand greater pressure. Even in the event of accidental pressure loss and retraction of the hydraulic cylinder, generating a large impact force, it can stably support the supported structure.

[0009] As a preferred implementation of the hydraulic cylinder support device, multiple reinforcing ribs are provided along the length of the support sleeve body. The arrangement of multiple reinforcing ribs further enhances the overall strength and stability of the support sleeve body, enabling the entire device to bear pressure evenly in different parts, effectively avoiding damage caused by local stress concentration, and greatly improving the adaptability and reliability of the device under complex working conditions.

[0010] As a preferred embodiment of the hydraulic cylinder support device, a weight-reduction window is provided on the side plate, located between two adjacent reinforcing ribs. This weight-reduction window design reduces the overall weight of the device without affecting the structural strength of the support sleeve, making installation and disassembly more convenient, reducing the labor intensity of operators, and improving work efficiency.

[0011] As a preferred embodiment of the hydraulic cylinder support device, the two ends of the support sleeve body are respectively provided with end reinforcing plates. The end reinforcing plates are U-shaped, and in the direction perpendicular to the plate surface of the support sleeve body, the thickness of the end reinforcing plates is greater than the thickness of the support sleeve body. This better resists the impact and friction forces received at the ends, extending the service life of the device.

[0012] As a preferred embodiment of a hydraulic cylinder support device, the support sleeve body includes a first body and a second body, both of which are U-shaped. The second body is nested inside the first body. The first body includes two first side plates, each with at least three first pin holes, with the first pin holes on the two first side plates facing each other. The second body includes two second side plates, each with at least three second pin holes, with the second pin holes on the two second side plates facing each other. At least two connecting pins are simultaneously inserted into the first pin holes and the second pin holes. The nested design allows the length of the support sleeve body to be flexibly adjusted according to actual operational needs, improving the versatility of the device and enabling it to adapt to hydraulic cylinder telescopic rods of different lengths, reducing the cost of equipping different devices for different specifications of hydraulic cylinders.

[0013] In a preferred embodiment of the hydraulic cylinder support device, five first pin holes are formed on the first side plate, and five second pin holes are formed on the second side plate. The increased number of pin holes provides more options for adjusting the length of the support sleeve body.

[0014] As a preferred embodiment of the hydraulic cylinder support device, a storage component is also included. The storage component comprises a first mounting base and a second mounting base, which are mounted on a storage base and maintained at a certain distance. A first slot is formed on one side of the first mounting base, and a second slot is formed on one side of the second mounting base. The first and second slots are arranged opposite to each other, and two connecting pins are respectively located in the first and second slots. The storage component allows the hydraulic cylinder support device to be properly stored and organized when not in use, preventing damage and loss when the device is carried with equipment.

[0015] As a preferred embodiment of a hydraulic cylinder support device, the first mounting bracket includes a first base and a second mounting block. The first base and / or the first mounting block have a first chamfer. The first base and the first mounting block are fixedly connected by bolts, and after connection, the first chamfer forms a first groove. Alternatively, the second mounting bracket includes a second base and a second mounting block. The second mounting block and / or the second base have a second chamfer. The second mounting block and the second base are fixedly connected by bolts, and after connection, the second chamfer forms a second groove. One of the mounting brackets is designed as a detachable structure, allowing adjustment of the chamfer position to modify the distance between the first and second grooves, thereby adapting to support sleeve bodies of different lengths.

[0016] As can be seen from the above technical solutions, the beneficial effects of this utility model are as follows: This solution adopts an external design, eliminating the need to modify the structure of the hydraulic cylinder itself, thus greatly reducing the cost of use; simultaneously, when the hydraulic cylinder unexpectedly loses pressure and retracts, the main body of the support sleeve can support the supported structure, effectively increasing the safe working height and ensuring the safety of operators. The integrated bending structure of the main body of the support sleeve improves the overall structural strength, reduces weak points in splicing, enhances the reliability of support, reduces the risk of device damage under high-intensity operation, and further ensures continuous operational safety. The U-shaped reinforcing ribs significantly improve the load-bearing capacity of the main body of the support sleeve, enabling it to withstand greater pressure and stably support the supported structure when the hydraulic cylinder unexpectedly loses pressure and generates impact force. The layout of multiple reinforcing ribs strengthens the overall strength and stability, avoids damage caused by local stress concentration, and improves the adaptability and reliability of the device under complex working conditions. The weight-reducing window reduces the weight of the device without affecting the structural strength, making installation and disassembly more convenient, reducing the labor intensity of operators, and improving work efficiency. The end reinforcing plates effectively enhance the strength of both ends of the main body of the support sleeve, resisting the impact and friction forces at the ends when the hydraulic cylinder telescopic rod extends and retracts, and extending the service life of the device. The nestable main body design allows for flexible adjustment of the support sleeve's length according to operational needs, improving the device's versatility and adapting to hydraulic cylinder telescopic rods of different lengths, reducing the cost of equipping different devices for different cylinder specifications. A specific number of pin holes provide more options for adjusting the support sleeve's length, enabling more precise adaptation to different operational requirements and enhancing the device's flexibility and practicality. The storage component allows for proper storage and organization of the hydraulic cylinder top support device when not in use, preventing damage and loss, improving the cleanliness of the work site, and enhancing the safety and efficiency of the working environment. The detachable mounting bracket design allows for adjustment of the distance between the first and second slots through chamfering, adapting to support sleeves of different lengths and improving the versatility and convenience of the storage component. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the hydraulic cylinder support device according to Embodiment 1 of this utility model.

[0019] Figure 2 This is a cross-sectional schematic diagram of the hydraulic cylinder support device according to Embodiment 1 of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the support sleeve body in the cylinder top support device of Embodiment 1 of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the second card seat in the cylinder support device of Embodiment 1 of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the first mounting bracket in the cylinder support device of Embodiment 1 of this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the hydraulic cylinder support device in Embodiment 2 of this utility model.

[0024] Figure 7 This is a schematic diagram showing the usage state of the hydraulic cylinder support device according to Embodiment 1 of this utility model.

[0025] Figure 8 This is a schematic diagram of the cylinder top support device in its stored state according to Embodiment 1 of this utility model.

[0026] Explanation of main figure symbols

[0027] 1. Support sleeve body, 11. First body, 111. First side plate, 12. Second body, 121. Second side plate, 2. Connecting pin, 3. Reinforcing rib, 4. Weight reduction window, 5. End reinforcing plate, 6. First pin hole, 7. Second pin hole, 8. First card seat, 9. Second card seat, 91. Second base, 92. Second card block. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Example 1

[0030] like Figure 1-3 As shown, a hydraulic cylinder support device includes a support sleeve body 1. The support sleeve body 1 has a U-shaped cross-section and includes a connecting plate and side plates located on both sides of the connecting plate. The connecting plate and the two side plates are integrally bent. At least two connecting pins 2 are provided between the two side plates to... Figure 1 Taking the two connecting pins 2 shown as an example, along the length of the support sleeve body 1, pin holes are respectively opened at both ends of the lower edge of the two side plates. The pin holes on the two side plates are aligned one to one. A baffle is provided at one end of the connecting pin 2. The connecting pin 2 is inserted into the aligned pin hole, and then the two ends of the connecting pin 2 are respectively inserted into the two side plates. The baffle is in contact with the outer surface of one side plate.

[0031] When using this device, first remove the two connecting pins 2, then attach the U-shaped support sleeve body 1 to the protruding part of the cylinder telescopic rod, and then insert the two connecting pins 2 back into the pin holes. At this time, as shown... Figure 7 As shown, the main body of the support sleeve is then fixed on the hydraulic cylinder telescopic rod. If the hydraulic cylinder unexpectedly loses pressure and retracts, the structure supported by the telescopic rod, or the connecting structure at the end of the telescopic rod, will be supported by the main body of the support sleeve and will not retract completely directly. This device increases the safe height during operation and ensures the safety of the operator.

[0032] The U-shaped interior of the support sleeve body 1 is provided with reinforcing ribs 3. Multiple reinforcing ribs 3 are provided along the length of the support sleeve body 1. Each reinforcing rib 3 is U-shaped and is fixedly connected to both the connecting plate and the two side plates. The reinforcing ribs 3 protrude inwards relative to the inner surfaces of the connecting plate and the two side plates. End reinforcing plates 5 are also provided at both ends of the support sleeve body 1. The end reinforcing plates 5 are U-shaped, and their thickness is greater than that of the support sleeve body 1 in the direction perpendicular to the plate surface. The end reinforcing plates 5 contact the cylinder and the supported equipment, thus improving local strength. Weight-reducing windows 4 are provided on the side plates, located between two adjacent reinforcing ribs 3. Figure 2 As shown, in this embodiment, three reinforcing ribs 3 are provided, and two weight-reduction windows are opened on each side plate.

[0033] This device is externally mounted on the hydraulic cylinder and therefore needs to be carried with the equipment. Therefore, this embodiment also provides a set of storage components for the support sleeve body, such as... Figure 2 , 4 As shown in Figure 5, the storage component includes a first card holder 8 and a second card holder 9. The first card holder 8 and the second card holder 9 can be installed on the storage base and maintain a certain distance. A first slot is opened on one side of the first card holder 8, and a second slot is opened on one side of the second card holder 9. The first slot and the second slot are arranged opposite to each other. The two connecting pins 2 are respectively located in the first slot and the second slot. In this embodiment, the first card holder 8 is an integral structure, and the second card holder 9 includes a second base 91 and a second card block 92. The second card block 92 and / or the second base 91 are provided with a second chamfer. The second card block 92 and the second base 91 are fixedly connected by bolts. After connection, the second chamfer forms a second slot.

[0034] In other embodiments, the first card holder 8 can also be configured as the same split structure. In this case, the first card holder 8 includes a first base and a first card block. The first base and / or the first card block are provided with a first chamfer. The first base and the first card block are fixedly connected by bolts. After connection, the first chamfer forms a first groove.

[0035] like Figure 8As shown, the storage component is installed on the device with the first slot and the second slot facing each other. When storing the support sleeve body 1, the support sleeve body 1 is fastened onto the first card seat 8 and the second card seat 9, with the pin holes aligned with the first slot and the second slot. Then, the two connecting pins 2 are inserted into the pin holes. At this time, the two connecting pins are respectively locked in the first slot and the second slot, realizing the mounting and storage of the support sleeve storage body on the device.

[0036] Example 2

[0037] The operating principle of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, the support sleeve body 1 can be extended and retracted to adjust the support height. Specifically:

[0038] like Figure 6 As shown, the support sleeve body 1 includes a first body 11 and a second body 12, both of which are U-shaped. The second body 12 is nested inside the first body 11. The first body 11 includes two first side plates 111, each with at least three first pin holes 6, which are aligned one-to-one. The second body 12 includes two second side plates 121, each with at least three second pin holes 7, which are aligned one-to-one. At least two connecting pins 2 are simultaneously inserted into the first pin holes 6 and the second pin holes 7. Figure 6 In the embodiment shown, five first pin holes 6 are provided on the first side plate 111, and five second pin holes 7 are provided on the second side plate 121. By matching the first pin holes 6 and the second pin holes 7 at different positions, the overall length of the support sleeve body 1 can be adjusted, thereby adjusting the height that can be supported.

[0039] As can be seen from the above embodiments, the advantages of this utility model are as follows: It adopts an external mounting design, eliminating the need to modify the cylinder's own structure, significantly reducing operating costs. Furthermore, in the event of accidental pressure loss and retraction of the cylinder, the support sleeve body can support the supported structure, increasing operational safety and ensuring operator safety. In terms of structural optimization, the integrated bent support sleeve body enhances overall strength, reduces weak points in the joints, and lowers the risk of device damage during high-intensity operations; the U-shaped reinforcing ribs improve load-bearing capacity and can withstand the impact of accidental pressure loss; the rational layout of multiple reinforcing ribs strengthens overall strength and stability, avoids damage from localized stress concentration, and improves adaptability and reliability to complex working conditions. From the perspective of convenience and efficiency improvement, the weight-reducing window reduces the weight of the device, making installation and disassembly more convenient, reducing operator workload, and improving work efficiency; the end reinforcing plates at both ends of the device enhance end strength, resisting the impact and friction forces during the extension and retraction of the cylinder's telescopic rod, and extending the device's service life. In terms of versatility and flexibility, the nestable main body design allows for adjustment of the support sleeve length according to operational needs, accommodating hydraulic cylinder telescopic rods of different lengths. This reduces the cost of equipping devices for different specifications of hydraulic cylinders. A specific number of pin holes provides more options for length adjustment, enhancing flexibility and practicality. The storage component can properly store the hydraulic cylinder top support device, preventing damage or loss when idle, creating a tidy work site, and improving the safety and efficiency of the working environment. The detachable mounting bracket design allows for adjustment of the chamfer position, changing the distance between the first and second slots, thus improving the versatility and convenience of the storage component.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cylinder jacking device, characterized by The support sleeve body (1) is U-shaped in cross section and includes a connecting plate and side plates on both sides of the connecting plate.

2. A cylinder jacking device according to claim 1, wherein The connecting plate and the two side plates are an integral bending structure.

3. The cylinder jacking device of claim 1, wherein: The U-shaped interior of the support sleeve body (1) is provided with a reinforcing rib (3), which is U-shaped and fixedly connected with the connecting plate and the two side plates.

4. A cylinder jacking device according to claim 3, wherein The reinforcing rib (3) is provided with a plurality of reinforcing ribs along the length direction of the support sleeve body (1).

5. A cylinder jacking device according to claim 4, wherein The side plate is provided with a weight reduction window (4) between the adjacent two reinforcing ribs (3).

6. The cylinder jacking device of claim 1, wherein, The support sleeve body (1) is provided with an end reinforcing plate (5) at each end, which is U-shaped and has a thickness greater than that of the support sleeve body (1) in a direction perpendicular to the plate surface of the support sleeve body (1).

7. The cylinder jacking device of claim 1, wherein: The support sleeve body (1) includes a first body (11) and a second body (12), both of which are U-shaped, and the second body (12) is nested in the interior of the first body (11), the first body (11) includes two first side plates (111), each first side plate (111) is provided with at least three first pin holes (6), and the first pin holes (6) on the two first side plates (111) are arranged one by one; the second body (12) includes two second side plates (121), each second side plate (121) is provided with at least three second pin holes (7), and the second pin holes (7) on the two second side plates (121) are arranged one by one; at least two connecting pins (2) are inserted into the first pin holes (6) and the second pin holes (7) at the same time.

8. A ram jack as defined in claim 7 wherein, Five first pin holes (6) are provided on the first side plate (111), and five second pin holes (7) are provided on the second side plate (121).

9. The cylinder jacking device of claim 1, wherein, The support sleeve body (1) is provided with an end reinforcing plate (5) at each end, which is U-shaped and has a thickness greater than that of the support sleeve body (1) in a direction perpendicular to the plate surface of the support sleeve body (1). The support sleeve body (1) includes a first body (11) and a second body (12), both of which are U-shaped, and the second body (12) is nested in the interior of the first body (11), the first body (11) includes two first side plates (111), each first side plate (111) is provided with at least three first pin holes (6), and the first pin holes (6) on the two first side plates (111) are arranged one by one; the second body (12) includes two second side plates (121), each second side plate (121) is provided with at least three second pin holes (7), and the second pin holes (7) on the two second side plates (121) are arranged one by one; at least two connecting pins (2) are inserted into the first pin holes (6) and the second pin holes (7) at the same time. Five first pin holes (6) are provided on the first side plate (111), and five second pin holes (7) are provided on the second side plate (121). The support sleeve body (1) is provided with an end reinforcing plate (5) at each end, which is U-shaped and has a thickness greater than that of the support sleeve body (1) in a direction perpendicular to the plate surface of the support sleeve body (1). The support sleeve body (1) includes a first body (11) and a second body (12), both of which are U-shaped, and the second body (12) is nested in the interior of the first body (11), the first body (11) includes two first side plates (111), each first side plate (111) is provided with at least three first pin holes (6), and the first pin holes (6) on the two first side plates (111) are arranged one by one; the second body (12) includes two second side plates (121), each second side plate (121) is provided with at least three second pin holes (7), and the second pin holes (7) on the two second side plates (121) are arranged one by one; at least two connecting pins (2) are inserted into the first pin holes (6) and the second pin holes (7) at the same time.

10. A cylinder jacking device according to claim 9, wherein The first clamping seat (8) comprises a first base and a first clamping block, and a first chamfer is arranged on the first base and / or the first clamping block; the first base and the first clamping block are fixedly connected through bolts, and the first chamfer forms a first notch after being connected; and / or the second clamping seat (9) comprises a second base (91) and a second clamping block (92), a second chamfer is arranged on the second clamping block (92) and / or the second base (91), the second clamping block (92) and the second base (91) are fixedly connected through bolts, and the second chamfer forms a second notch after being connected.

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