An oil and gas boost cylinder for a rivet gun

CN224664949UActive Publication Date: 2026-08-21ANQIU DINGZHENG MACHINICAL EQUIP CO LTD
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Patent Information

Application Number
CN202521857600.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-08-21
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

[0003]然而,在实际应用过程中,所用的液压缸普遍存在压力低,压力波动大,从而出现铆钉拉不断的问题

Benefits of technology

带动活塞杆缩回时,油箱与液压缸相连通,致使液压油通过出油口回流到液压缸内;随着活塞杆缩回到原点,油箱的排油口可以通过进油套管向液压缸内补油,确保油量充足,从而能够始终保证液压油的油压充足,保证拉铆钉拉断的成功率。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224664949U_ABST
    Figure CN224664949U_ABST
Patent Text Reader

Abstract

The utility model discloses an oil gas pressure boosting cylinder for a rivet gun, which comprises a cylinder, a hydraulic cylinder is installed at the front end of the cylinder, a piston rod is arranged in the hydraulic cylinder, one end of the piston rod close to the cylinder is connected with an extension rod of the cylinder, an oil tank is installed at the outer side of the cylinder, an oil inlet sleeve is installed at the rear end of the hydraulic cylinder, a plurality of oil inlets are arranged on the side wall of the oil inlet sleeve, and the oil inlets are in communication with the oil outlet of the oil tank. The utility model can always ensure that the oil pressure of the hydraulic oil is sufficient and the power of the rivet is ensured.
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Description

Technical Field

[0001] This utility model relates to an oil-gas booster cylinder for rivet guns, belonging to the technical field of booster cylinders for rivet guns. Background Technology

[0002] As an important part of the packaging for alcoholic beverages, wine boxes must balance structural stability, aesthetic appeal, and production efficiency. Riveting guns play a crucial role in securing wine boxes, especially those made of hard materials such as wood, metal, and leather, through riveting. Existing rivet guns generally consist of a gun body and a rivet head assembly. The gun body includes a cylinder, a booster cylinder, and a reversing mechanism. The booster cylinder contains a booster piston, and the cylinder contains a cylinder piston. The booster piston and the cylinder piston are fixedly connected by a piston rod. The piston shaft provides the pulling force for riveting under hydraulic pressure.

[0003] However, in practical applications, the hydraulic cylinders used generally suffer from low pressure and large pressure fluctuations, resulting in the problem of rivets not being able to be pulled out.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This invention addresses the shortcomings of the prior art by providing a hydraulic booster cylinder for a rivet gun, which can always ensure sufficient hydraulic oil pressure and guarantee the success rate of rivet breakage.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: A hydraulic booster cylinder for a rivet gun includes a cylinder, a hydraulic cylinder is installed at the front end of the cylinder, a piston rod is provided inside the hydraulic cylinder, and the end of the piston rod near the cylinder is connected to the telescopic rod of the cylinder. An oil tank is installed on the outside of the cylinder, and an oil inlet sleeve is installed at the rear end of the hydraulic cylinder. Multiple oil inlets are provided on the side wall of the oil inlet sleeve, and the oil inlets are connected to the oil drain port of the oil tank.

[0007] Furthermore, a connecting sleeve is installed at the front end of the cylinder, the connecting sleeve is connected to the rear side of the oil inlet sleeve, and the piston rod is inserted into the connecting sleeve.

[0008] Furthermore, a cylinder plug is provided between the connecting sleeve and the oil inlet sleeve.

[0009] Furthermore, a sealing ring is provided inside the cylinder plug, and a sealing ring is also provided inside the rear end of the hydraulic cylinder.

[0010] Furthermore, a peep sight is provided on the side of the fuel tank.

[0011] Furthermore, the hydraulic cylinder has an oil outlet at its front end, away from the cylinder, and the oil outlet is connected to the rivet gun.

[0012] Furthermore, an oil pressure gauge is installed on the side wall at the front end of the hydraulic cylinder.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: When the piston rod retracts, the oil tank is connected to the hydraulic cylinder, causing the hydraulic oil to flow back into the hydraulic cylinder through the oil outlet. As the piston rod retracts to its original position, the oil tank's drain port can replenish the hydraulic cylinder through the oil inlet sleeve to ensure sufficient oil supply. This ensures that the hydraulic oil pressure is always sufficient, guaranteeing a high success rate for breaking the rivet.

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a diagram showing the state of the piston rod of this utility model when it is extended; Figure 2 This is a diagram showing the state of the piston rod after it contracts and needs oil replenishment, according to this utility model.

[0016] In the picture, 1-Cylinder, 2-Hydraulic cylinder, 3-Piston rod, 4-Oil tank, 5-Inspection mirror, 6-Connecting sleeve, 7-Oil cylinder plug, 8-Sealing ring, 9-Oil inlet sleeve, 10-Oil inlet, 11-Oil outlet, 12-Oil pressure gauge, 13-Check valve. Detailed Implementation

[0017] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0018] like Figure 1 As shown, this utility model provides a hydraulic booster cylinder for a rivet gun, including a cylinder 1, a hydraulic cylinder 2 installed at the front end of the cylinder 1, a piston rod 3 inside the hydraulic cylinder 2, and the end of the piston rod 3 near the cylinder 1 connected to the telescopic rod of the cylinder 1. An oil tank 4 is installed on the outside of the cylinder 1, and an oil inlet sleeve 9 is installed at the rear end of the hydraulic cylinder 2. Multiple oil inlets 10 are provided on the side wall of the oil inlet sleeve 9, and the oil inlets 10 are connected to the oil outlet of the oil tank 4.

[0019] The cylinder 1 is powered by compressed air, which drives the piston rod 3 to move within the hydraulic cylinder 2. The large difference between the cylinder diameter and the piston rod 3 area generates high-pressure hydraulic oil, which is then forcefully forced into the rivet gun to power it.

[0020] Furthermore, a connecting sleeve 6 is installed at the front end of the cylinder 1, the connecting sleeve 6 is connected to the rear side of the oil inlet sleeve 9, and the piston rod 3 is inserted into the connecting sleeve 6.

[0021] A cylinder plug 7 is provided between the connecting sleeve 6 and the oil inlet sleeve 9. The cylinder plug 7 has a sealing ring 8 inside, and the rear end of the hydraulic cylinder 2 also has a sealing ring 8 inside.

[0022] The cylinder plug 7 is used to position and install the oil inlet sleeve 9, and a sealing ring 8 can be installed inside it for sealing.

[0023] A sight glass 5 is provided on the side of the fuel tank 4 to detect the fuel level in the fuel tank 4, so as to add fuel in time and prevent fuel shortage. The top of the fuel tank 4 is provided with a fuel tank cover for sealing and dust prevention, and a venting device is provided inside.

[0024] The hydraulic cylinder 2 has an oil outlet 11 at its front end away from the cylinder 1, and the oil outlet 11 is connected to the rivet gun (not shown in the figure).

[0025] An oil pressure gauge 12 is installed on the side wall at the front end of the hydraulic cylinder 2. The oil pressure gauge 12 is a high-pressure shockproof oil gauge used for pressure display.

[0026] The specific working principle of this utility model: During operation, when cylinder 1 is connected to the air supply, its extension rod drives piston rod 3 forward. Because the diameter of cylinder 1 is much larger than the diameter of piston rod 3, the hydraulic oil in hydraulic cylinder 2 instantly forms high pressure. At this time, pressure gauge 12 displays the pressure. The high-pressure hydraulic oil flows along outlet 11, which is connected to a rivet gun, providing the rivet gun with instantaneous high-pressure hydraulic oil, causing the rivet gun to instantly break the rivet. When cylinder 1 retracts, it drives piston rod 3 to retract as well. Figure 2 At this time, the oil tank 4 is connected to the hydraulic cylinder 2, causing the hydraulic oil to flow back into the hydraulic cylinder 2 through the oil outlet 11; as the piston rod 3 retracts to the original position, the oil outlet of the oil tank 4 can replenish the hydraulic cylinder 2 through the oil inlet sleeve 9 to ensure sufficient oil volume, thereby ensuring sufficient oil pressure of the hydraulic oil and ensuring the success rate of rivet breakage.

[0027] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A hydraulic booster cylinder for a rivet gun, characterized in that: Includes a cylinder (1), a hydraulic cylinder (2) is installed at the front end of the cylinder (1), and a piston rod (3) is provided inside the hydraulic cylinder (2). The end of the piston rod (3) near the cylinder (1) is connected to the telescopic rod of the cylinder (1). An oil tank (4) is installed on the outside of the cylinder (1), and an oil inlet sleeve (9) is installed at the rear end of the hydraulic cylinder (2). Multiple oil inlets (10) are provided on the side wall of the oil inlet sleeve (9), and the oil inlets (10) are connected to the oil outlet of the oil tank (4).

2. The hydraulic booster cylinder for a rivet gun as described in claim 1, characterized in that: A connecting sleeve (6) is installed at the front end of the cylinder (1). The connecting sleeve (6) is connected to the rear side of the oil inlet sleeve (9). The piston rod (3) is inserted into the connecting sleeve (6).

3. The hydraulic booster cylinder for a rivet gun as described in claim 2, characterized in that: A cylinder plug (7) is also provided between the connecting sleeve (6) and the oil inlet sleeve (9).

4. The hydraulic booster cylinder for a rivet gun as described in claim 3, characterized in that: The cylinder plug (7) is provided with a sealing ring (8), and the rear end of the hydraulic cylinder (2) is also provided with a sealing ring (8).

5. The hydraulic booster cylinder for a rivet gun as described in claim 1, characterized in that: A viewing mirror (5) is provided on the side of the fuel tank (4).

6. The hydraulic booster cylinder for a rivet gun as described in claim 1, characterized in that: The hydraulic cylinder (2) has an oil outlet (11) at its front end away from the cylinder (1), and the oil outlet (11) is connected to the rivet gun.

7. The hydraulic booster cylinder for a rivet gun as described in claim 1, characterized in that: An oil pressure gauge (12) is installed on the side wall at the front end of the hydraulic cylinder (2).