Oil pipe ejector pin equipment capable of preventing oil leakage

Abstract

The utility model discloses oil leakage prevention oil pipe ejector pin equipment which comprises an oil pipe body and a pipe connector, the pipe connector is installed at the end of the oil pipe body, the interior of the pipe connector extends inwards and is provided with a limiting block, an ejector pin is arranged in the limiting block in a sliding mode, and a plugging cover is arranged at one end of the ejector pin. By means of the ejector pin, the reset spring and the sealing ball, the connecting opening can be sealed, the oil leakage phenomenon of the oil pipe body is prevented, and in order to further improve the oil leakage prevention of the oil pipe body, a plugging cover is arranged on the structure technology, the plugging cover makes contact with a boss formed by extending the interior of the pipe joint inwards, the interior of the pipe joint is separated, and the oil leakage prevention effect is improved. The sealing ball is pushed to move into the pipe connector, the ejector pin drives the sealing cover to be separated from the interior of the pipe connector and extend out of the inner side, the oil channel is communicated with the two sides of the pipe connector, and then oil supply operation can be conveniently conducted from one end of the pipe connector through the oil pipe body.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe joints, and specifically relates to an oil pipe ejector device for preventing oil leakage. Background Art

[0002] Hydraulic transmission is a transmission method that uses hydraulic oil as the working medium and uses liquid pressure to transmit power and control. It has the advantages of large energy transmission, easy layout, compact structure, stable transmission, easy frequent reversing, overload protection, and easy serialization, standardization, and generalization of various components. Therefore, hydraulic transmission technology has become an important driving force for the development of the machinery industry. There are two forms of leakage from the oil: one is the leakage of oil from the high-pressure area to the low-pressure area, which is internal leakage; the other is the leakage of oil in the system to the outside of the hydraulic system, which is external leakage. Whether it is external leakage or internal leakage, once the hydraulic system leaks, it will cause the system pressure to fail to build up. External leakage of hydraulic oil will also cause environmental pollution, affect production, and even have incalculable serious consequences. Therefore, it is necessary to pay attention to the problem of hydraulic oil leakage. Utility Model Content

[0003] The utility model aims to provide an oil pipe ejector device for preventing oil leakage, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil pipe ejector device for preventing oil leakage, comprising an oil pipe body and a pipe joint, the pipe joint being installed at the end of the oil pipe body, the interior of the pipe joint extending inwardly and provided with a limiting block, an ejector being slidably arranged in the limiting block, one end of the ejector being provided with a blocking cover for blocking an opening at the interior of the pipe joint extending inwardly, a connecting opening being provided at the end of the pipe joint, a sealing ball for blocking the connecting opening being provided at the other end of the ejector, and a reset spring being provided between the sealing ball and the limiting block.

[0005] Preferably, an oil passage is formed between the inner inwardly extending portion of the pipe joint and the limiting block, so that the two side ends of the pipe joint are connected.

[0006] Preferably, the pipe joint corresponding to one side of the blocking cover forms a space for the blocking block to move, and there is a gap between the outer ring of the blocking cover and the inner wall of the pipe joint.

[0007] Preferably, a limiting component for preventing the ejector pin from sliding is also installed on the pipe joint, and the limiting component is plugged into the ejector pin.

[0008] Preferably, the limiting assembly includes a longitudinal slideway provided on the pipe joint, a slider is slidably arranged in the longitudinal slideway, an insert rod is installed on the outer wall of the slider, and the insert rod is inserted into a socket provided on the outer wall of the ejector pin, a lead screw is threaded on the slider, the lead screw passes through the pipe joint and extends to the outside, and the lead screw is rotatably installed with the pipe joint.

[0009] Compared with the prior art, the utility model has the following beneficial effects: an oil pipe ejector device for preventing oil leakage, which can seal the connecting opening of the pipe joint through the ejector, return spring and sealing ball, so as to prevent oil leakage of the oil pipe body. In order to further improve the oil leakage prevention of the oil pipe body, a sealing cover is provided in its structure technology, and the sealing cover contacts with a boss extending inward from the inside of the pipe joint to separate the inside of the pipe joint to avoid the circulation of the oil circuit, thereby further improving the oil leakage prevention. By pushing the sealing ball to move into the pipe joint, the ejector drives the sealing cover to extend inward from the inside of the pipe joint, and is connected with both sides of the pipe joint through the oil circuit channel, so as to facilitate the oil supply operation from one end of the pipe joint through the oil pipe body. The sealing ball and the sealing cover can be reset after the oil supply is completed through the return spring, so as to achieve the purpose of preventing oil leakage. The limit assembly provided can prevent the sealing ball from being accidentally touched. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a cross-sectional view of the internal structure of the pipe joint of the utility model;

[0012] Figure 3 It is a cross-sectional view of the structure state of the pipe joint of the utility model after internal connection;

[0013] Figure 4 It is a schematic diagram of the structure of the limit assembly of the utility model.

[0014] In the figure: 1-oil pipe body, 2-pipe joint, 3-limiting block, 4-thimble, 5-blocking cover, 6-connecting opening, 7-sealing ball, 8-reset spring, 9-oil channel, 10-longitudinal slideway, 11-slider, 12-insertion rod, 13-jack, 14-screw. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-4 The utility model provides a technical solution: an oil pipe ejector device for preventing oil leakage, comprising an oil pipe body 1 and a pipe joint 2, the pipe joint 2 being installed at the end of the oil pipe body 1, the interior of the pipe joint 2 extending inwardly and provided with a limiting block 3, an ejector 4 being slidably provided in the limiting block 4, a blocking cover 5 being provided at one end of the ejector 4 for blocking an opening at the interior of the pipe joint 2 extending inwardly, a connecting opening 6 being provided at the end of the pipe joint 2, a sealing ball 7 for blocking the connecting opening 6 being provided at the other end of the ejector 4, a return spring 8 being provided between the sealing ball 7 and the limiting block 4.

[0017] The inner wall of the pipe joint 2 extending inwardly and corresponding to the side of the blocking cover is tapered, so as to facilitate the separation and entry of the blocking cover 5.

[0018] An oil passage 9 is formed between the inner extension of the pipe joint 2 and the limit block 4 , so that the two side ends of the pipe joint 2 are connected.

[0019] The pipe joint 2 corresponding to one side of the blocking cover 5 forms a space for the blocking block 5 to move, and there is a gap between the outer ring of the blocking cover 5 and the inner wall of the pipe joint 2.

[0020] The pipe joint 2 is also provided with a limiter assembly for preventing the ejector pin 4 from sliding, and the limiter assembly is plugged into the ejector pin 4 .

[0021] The limiting assembly includes a longitudinal slide 10 provided on the pipe joint 2, a slider 11 is slidably arranged in the longitudinal slide 10, an insert rod 12 is installed on the outer wall of the slider 11, and the insert rod 12 is inserted into a socket 13 provided on the outer wall of the ejector pin 4, a lead screw 14 is threaded on the slider 11, the lead screw 14 passes through the pipe joint 2 and extends to the outside, and the lead screw 14 is rotatably installed with the pipe joint 2.

[0022] Symmetrical positioning blocks are arranged in the longitudinal slideway 10 , and a notch matching the positioning blocks is provided on the slider 11 . When the lead screw 14 is screwed to the slider 11 , the slider 11 can move linearly, thereby driving the insertion rod 12 to move.

[0023] Working principle: When the utility model is used, the internal top core in the oil supply pipeline pushes the sealing ball 7 to move inside the pipe joint 2, the reset spring 8 is compressed, the sealing ball 7 is separated from the connection opening 6, the sealing ball 7 drives the ejector pin 4 to slide in the limit block 3, the ejector pin 4 drives the blocking cover 5 to separate from the inside of the pipe joint 2 and extend inward, so that the two sides of the pipe joint 2 are connected through the oil passage 9, thereby facilitating the oil supply operation through the oil pipe body 1. After the oil supply is completed, there is no force acting on the sealing ball 7, and under the elastic force of the reset spring 8, The sealing ball 7 is driven to seal the connecting opening 6, and the sealing ball 7 drives the ejector pin 4 to move. The ejector pin 4 drives the sealing cover 5 to seal the inner extension of the pipe joint 2 to separate the two end heads of the pipe joint 2 to prevent oil leakage. To avoid accidentally touching the sealing ball 7, the lead screw 14 is rotated, and the lead screw 14 drives the slider 11 to slide in the longitudinal slideway 10, and the insertion rod 12 moves into the socket 13 on the ejector pin 4. When the insertion rod 12 is inserted into the socket 13, the movement of the ejector pin 4 is limited to prevent the sealing ball 7 and the sealing cover 5 from moving.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing oil leakage from oil pipe ejector, characterized in that: The invention comprises an oil pipe body (1) and a pipe joint (2), wherein the pipe joint (2) is installed at the end of the oil pipe body (1), the interior of the pipe joint (2) extends inwardly and is provided with a limit block (3), a pin (4) is slidably provided inside the limit block (3), a blocking cover (5) is provided at one end of the pin (4) for blocking an opening of the pipe joint (2) extending inwardly, a connecting opening (6) is provided at the end of the pipe joint (2), a sealing ball (7) for blocking the connecting opening (6) is provided at the other end of the pin (4), and a return spring (8) is provided between the sealing ball (7) and the limit block (3).

2. The oil pipe ejector device for preventing oil leakage according to claim 1 is characterized in that: An oil passage (9) is formed between the inner extension of the pipe joint (2) and the limit block (3), so that the two side ends of the pipe joint (2) are connected.

3. The oil pipe ejector device for preventing oil leakage according to claim 1 is characterized in that: The pipe joint (2) corresponding to one side of the blocking cover (5) forms a space for the blocking cover (5) to move, and there is a gap between the outer ring of the blocking cover (5) and the inner wall of the pipe joint (2).

4. The oil pipe ejector device for preventing oil leakage according to claim 1 is characterized in that: A limiting component for preventing the ejector pin (4) from sliding is also installed on the pipe joint (2), and the limiting component is plugged into the ejector pin (4).

5. The oil pipe ejector device for preventing oil leakage according to claim 4 is characterized in that: The limit assembly comprises a longitudinal slideway (10) provided on the pipe joint (2), a slider (11) being slidably arranged in the longitudinal slideway (10), an insertion rod (12) being installed on the outer wall of the slider (11), and the insertion rod (12) being inserted into a socket (13) provided on the outer wall of the ejector pin (4), a lead screw (14) being threadedly connected to the slider (11), the lead screw (14) penetrating the pipe joint (2) and extending to the outside, and the lead screw (14) being rotatably mounted on the pipe joint (2).

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