Hydraulic pipe fitting with leakage-proof function

Abstract

The utility model discloses a hydraulic pipe fitting with a leakproof function, which relates to the technical field of hydraulic pipe fittings, and comprises a pipe body, flange plates are fixed at two ends of the pipe body, first connecting holes are arranged on the plate surfaces of the flange plates, a telescopic corrugated pipe is sleeved on the outer side of the pipe body, connecting mechanisms are arranged at two ends of the telescopic corrugated pipe, and the telescopic corrugated pipe is sleeved on the outer side of the pipe body. And the two connecting mechanisms are respectively connected with the two flange plates. When the pipe fitting leaks, hydraulic oil cannot directly leak out, the good leakage-proof function is achieved, the hydraulic oil can be conveniently discharged and cleaned, meanwhile, the leakage position of the pipe body can be conveniently repaired, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipe fittings technology, and in particular to a hydraulic pipe fitting with anti-leakage function. Background Technology

[0002] In industrial production, hydraulic systems are widely used due to their strong load-bearing capacity and efficient energy conversion. However, hydraulic oil leakage has always been a major concern in the industry. Hydraulic oil leakage not only wastes resources and increases operating costs, but can also cause excessive wear on equipment, affecting its performance and lifespan, and even leading to environmental pollution and safety hazards.

[0003] A patent with publication number CN215488261U, entitled "A Hydraulic Fitting with Leak-Proof Function," addresses this issue. While the fitting is repaired using a repair tool after a leak occurs, the hydraulic oil still leaks out, failing to achieve effective protection and leak prevention. Therefore, developing a hydraulic fitting with efficient and reliable leak-proof functionality remains a crucial issue in the field of hydraulic technology. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hydraulic pipe fitting with leak-proof function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydraulic fitting with leak-proof function includes a pipe body, both ends of which are fixed with flanges. The flanges have a first connection hole on their surfaces. A telescopic bellows is fitted on the outside of the pipe body. Both ends of the telescopic bellows are provided with connection mechanisms, and the two connection mechanisms are respectively connected to the two flanges.

[0007] As a further improvement of this utility model, each flange has four first connection holes, and the four first connection holes are evenly distributed along the circumference of the flange.

[0008] As a further improvement of this utility model, the connecting mechanism includes a connecting sleeve, which is sleeved on the outside of the flange. The side wall of the connecting sleeve is provided with four second connecting holes, which are equally spaced along the circumference of the connecting sleeve. Each second connecting hole is fitted with a connecting bolt. The side wall of the flange is provided with four threaded holes that mate with the connecting bolts. The four connecting bolts are screwed into the four threaded holes respectively.

[0009] As a further improvement of this utility model, a discharge pipe is connected to the side wall of the connecting sleeve, and a valve is installed on the discharge pipe.

[0010] As a further improvement of this utility model, a third sealing ring is embedded in the inner wall of the connecting sleeve.

[0011] As a further improvement of this utility model, a first sealing ring and a second sealing ring are embedded on the flange surface, with the second sealing ring located outside the first sealing ring.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a telescopic bellows and connecting mechanism, the telescopic bellows can shield and protect the outside of the pipe body, so that when the pipe leaks, the hydraulic oil will not leak out directly, thus achieving a good leak-proof function.

[0014] By setting up a connection mechanism, the connecting sleeve can be separated from the flange by disassembling the connecting bolts. Furthermore, since the expansion bellows can expand and contract, it is convenient to repair leaks in the pipe body by shrinking the expansion bellows, making the operation convenient.

[0015] By setting up a discharge pipe and valve, when it is necessary to discharge the hydraulic oil inside the telescopic bellows, the hydraulic oil can be discharged through the discharge pipe by opening the valve, thus achieving rapid cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a hydraulic pipe fitting with anti-leakage function proposed in this utility model;

[0017] Figure 2 This utility model presents a schematic diagram of the pipe body, flange, first sealing ring, second sealing ring, first connecting hole, and threaded hole of a hydraulic pipe fitting with anti-leakage function.

[0018] Figure 3 This is a schematic diagram of the connecting sleeve, second connecting hole, third sealing ring, discharge pipe, and valve of a hydraulic pipe fitting with anti-leakage function proposed in this utility model.

[0019] In the figure: 1 flange, 2 first connecting hole, 3 first sealing ring, 4 second sealing ring, 5 connecting sleeve, 6 connecting bolt, 7 discharge pipe, 8 valve, 9 telescopic bellows, 10 threaded hole, 11 pipe body, 12 second connecting hole, 13 third sealing ring. 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.

[0021] Reference Figures 1-3A hydraulic fitting with leak-proof function includes a pipe body 11, with flanges 1 fixed at both ends of the pipe body 11. A first sealing ring 3 and a second sealing ring 4 are embedded on the surface of the flange 1. The second sealing ring 4 is located outside the first sealing ring 3. By setting the first sealing ring 3 and the second sealing ring 4, double sealing can be achieved to improve the sealing effect. The flange 1 is provided with a first connecting hole 2. There are four first connecting holes 2 on each flange 1. The four first connecting holes 2 are evenly distributed along the circumference of the flange 1. The flange 1 can be connected to external pipes or equipment through the first connecting holes 2. A telescopic bellows 9 is sleeved on the outside of the pipe body 11. Both ends of the telescopic bellows 9 are provided with connecting mechanisms. The two connecting mechanisms are respectively connected to the two flanges 1.

[0022] In this utility model, the connecting mechanism includes a connecting sleeve 5, which is fitted onto the outside of the flange 1. Four second connecting holes 12 are provided through the side wall of the connecting sleeve 5, and these holes are evenly spaced along the circumference of the connecting sleeve 5. A connecting bolt 6 is inserted into each second connecting hole 12. Four threaded holes 10, which mate with the connecting bolts 6, are provided on the side wall of the flange 1. The four connecting bolts 6 are screwed into the four threaded holes 10 respectively. The telescopic bellows 9 can shield and protect the outside of the pipe body 11, preventing hydraulic oil from leaking directly when the pipe leaks, thus achieving good leak prevention. The connecting sleeve 5 can be separated from the flange 1 by disassembling the connecting bolts 6. Furthermore, since the telescopic bellows 9 can extend and retract, it is convenient to repair leaks in the pipe body 11 by retracting the telescopic bellows 9, making operation convenient.

[0023] A discharge pipe 7 is connected to the side wall of the connecting sleeve 5, and a valve 8 is installed on the discharge pipe 7. A third sealing ring 13 is embedded in the inner wall of the connecting sleeve 5. The third sealing ring 13 can improve the sealing effect between the connecting sleeve 5 and the flange 1. In a further practical case, two third sealing rings 13 can be set to increase the sealing effect. When it is necessary to discharge the hydraulic oil inside the telescopic bellows 9, the hydraulic oil can be discharged through the discharge pipe 7 by opening the valve 8, so as to achieve quick cleaning.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A hydraulic pipe fitting having a leak-proof function, comprising a pipe body (11), characterized in that, Both ends of the pipe body (11) are fixed with flanges (1), the disc surface of the flange (1) is provided with first connecting holes (2), the outer side of the pipe body (11) is sleeved with an expansion bellows (9), both ends of the expansion bellows (9) are provided with connecting mechanisms, and the two connecting mechanisms are connected with the two flanges (1) respectively.

2. The hydraulic pipe according to claim 1, wherein The number of the first connecting holes (2) on each flange (1) is four, and the four first connecting holes (2) are distributed equidistantly along the circumference of the flange (1).

3. The hydraulic pipe according to claim 1, wherein The connecting mechanism comprises a connecting sleeve (5), the connecting sleeve (5) is sleeved on the outer side of the flange (1), four second connecting holes (12) are provided through the side wall of the connecting sleeve (5), the four second connecting holes (12) are arranged equidistantly along the circumference of the connecting sleeve (5), a connecting bolt (6) is inserted into each second connecting hole (12), four threaded holes (10) matched with the connecting bolts (6) are provided on the side wall of the flange (1), and the four connecting bolts (6) are screwed into the four threaded holes (10) respectively.

4. The hydraulic pipe according to claim 3, wherein A discharge pipe (7) is connected to the side wall of the connecting sleeve (5), and a valve (8) is installed on the discharge pipe (7).

5. The hydraulic pipe according to claim 3, wherein A third sealing ring (13) is embedded on the inner wall of the connecting sleeve (5).

6. The hydraulic pipe according to claim 1, wherein A first sealing ring (3) and a second sealing ring (4) are embedded on the disc surface of the flange (1), and the second sealing ring (4) is located on the outer side of the first sealing ring (3).

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