Leakage-proof detection device for hydraulic power unit

Abstract

The utility model discloses a leakage-proof detection device for a hydraulic power unit, which relates to the technical field of hydraulic leakage-proof detection equipment, and is characterized by comprising an oil tank, an oil pump and a detection connecting piece which is mounted at a communication port of the oil pump and is used for oil circulation and oil leakage prevention, a locking block a and a plurality of groups of limiting holes which are circumferentially distributed on the outer wall of the oil outlet port of the oil tank are arranged on the oil outlet port of the oil tank. The leakage-proof detection device is installed between the oil tank and the oil pump in a connecting piece mode, the oil outlet port of the fixed oil tank can be integrally wrapped through the multiple sets of closed rotating blocks, and meanwhile the oil outlet port can be secondarily limited and fixed through the limiting assemblies on the rotating blocks. The oil storage cover of an annular structure is arranged in the base, overflowing oil can be reasonably judged through cooperation of the connecting rod and the oil storage cover, liquid leakage detection is achieved, the overflowing oil can be stored through the oil storage cover, and resource waste and influence on the environment are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic leakage prevention detection equipment, and more specifically, it relates to a hydraulic power unit leakage prevention detection device. Background Art

[0002] The hydraulic power unit is used as an oil supply device. It is connected to several hydraulic cylinders through an external piping system to control the movement of multiple groups of valves. The oil tank, oil pump and accumulator form an independent and closed power oil source system.

[0003] The core components involved in the hydraulic power unit include the oil tank, oil pump and PLC control components. The oil pump introduces the oil in the oil tank into the oil pump, and the oil is pressed into the relevant hydraulic equipment through the oil pump. For the oil pump, the oil tank is installed on the liquid inlet port of the oil pump. When fixing, the two generally need to be fixed with the help of a connecting plate or a connecting piece, and related sealing rings are added to ensure sealing;

[0004] During the operation of the oil pump, the force generated will be directly transmitted to the oil tank, resulting in common vibration between the oil pump and the oil tank. In particular, the vibration is particularly obvious for oil pumps running at different frequencies. During long-term vibration, the connecting disk or connecting piece will inevitably become loose due to the influence of the vibration. In this case, on the one hand, the liquid oil circulating in the oil tank will overflow through the gap of the loose connecting disk or connecting piece, affecting the surrounding environment. On the other hand, the overflowed oil cannot be recovered, resulting in a waste of resources.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a hydraulic power unit leakage detection device. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a hydraulic power unit leakage detection device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic power unit leakage detection device, comprising an oil tank, an oil pump and a detection connector installed at the oil pump communication port for oil circulation and oil leakage detection, the oil outlet port of the oil tank is provided with a locking block a and a plurality of groups of limiting holes distributed circumferentially on the outer wall of the oil outlet port of the oil tank; the detection connector comprises a disc seat and a base in an integrated structure; wherein the interior of the disc seat is a hollow structure and a circular opening is provided at the center, the interior of the disc seat is provided with at least two groups of rotating blocks in a rotating opening and closing structure and used for limiting the oil outlet port of the oil tank, and a plurality of groups of rotating blocks corresponding to the positions of the rotating blocks and corresponding to the positions of the rotating blocks The rotating block is engaged with gear a for transmission, and multiple groups of gear a are connected by transmission belts. An adjustment seat for providing transmission to one of the multiple groups of gear a is arranged on the outer wall of the disc seat; the base is a hollow structure, and a flow pipe for connecting the oil tank and the oil pump is arranged at the center, and a locking block b with the same size as the locking block a and fixed by screws is arranged at one end of the flow pipe. A longitudinally movable oil storage cover is arranged in the annular gap between the flow pipe and the base, and multiple groups of detection components for leakage detection are arranged on the outer wall of the base, and multiple groups of detection components are fixedly connected to the inner wall corresponding to the oil storage cover through hanging lines.

[0008] Preferably, the closed end of the rotating block is in an arc-shaped structure, and the circular slots formed at the centers of at least two groups of the rotating blocks after closing are of the same diameter as the oil outlet port of the oil tank, a strip slot is provided on the top surface of the rotating block, a limiting component is provided in the strip slot, a sliding limit block for limiting the movement of the rotating block is provided on the bottom surface of the rotating block, and a tooth groove matching the meshing pattern of gear a is provided on the outer end surface of the rotating block.

[0009] Preferably, the limit assembly includes a moving block, a spring a and an insertion rod. The moving block is slidably connected in the strip slot and has a finger groove on the top surface. The spring a and the insertion rod are respectively arranged at both ends of the moving block. The spring a is connected to the inner wall of the strip slot, and the insertion rod passes through the closed end of the rotating block and engages with the limit hole on the outer wall of the oil outlet port of the oil tank.

[0010] Preferably, a gear b is provided inside the adjustment seat, and the gear b is meshedly connected with one of the multiple groups of gears a, and an adjustment disk that is synchronously driven with the gear b is provided on the top side of the outside of the adjustment seat.

[0011] Preferably, a plurality of groups of sliders for limiting the longitudinal sliding position of the oil storage cover are arranged on the outer wall of the oil storage cover, and wire fixing holes for installing hanging wires are arranged on the inner wall of the oil storage cover corresponding to the positions of the plurality of groups of sliders.

[0012] Preferably, the detection assembly includes a disc a, a disc b, a spring b and a connecting rod, wherein the disc b is fixed on the outer wall of the base, one end of the connecting rod passes through the disc b and is connected to the disc a, and the other end passes through the inside of the base, and the spring b is arranged between the disc a and the disc b and is nested on the connecting rod.

[0013] Preferably, a rope hanging ring of an integrated structure is provided at the through end of the connecting rod, the rope hanging ring is connected to the suspension wire installed on the wire fixing hole, and a telescopic scale mark is printed on the outer wall of the connecting rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The anti-leakage detection device of the utility model is installed between the oil tank and the oil pump in the form of a connecting piece. When the oil tank is installed, the rotating block embedded in the detection connecting piece can be manually closed and controlled, so that multiple groups of closed rotating blocks can wrap the fixed oil outlet port of the oil tank as a whole. At the same time, the limit assembly on the rotating block can be used to perform secondary limit fixation on the oil outlet port, further enhancing the stability and firmness of the connection between the oil tank and the oil pump, and greatly reducing the probability of oil spillage caused by loose connection due to vibration of the connection part between the oil tank and the oil pump.

[0016] 2. An annular oil storage cover is provided in the base of the detection connector of the utility model. If oil overflows between the oil tank and the oil pump, it can be stored through the oil storage cover. When there is oil in the oil storage cover, the connecting rod of the detection component on the outside of the base will be pulled to move by the suspension rope due to the influence of gravity. Through the telescopic distance of the connecting rod, the overflowed oil can be reasonably judged to achieve the purpose of leakage detection. At the same time, the overflowed oil can be stored through the oil storage cover to avoid waste of resources and impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is the overall connection diagram of the oil tank and the oil pump of the utility model;

[0019] Figure 2 This is a structural diagram of the oil outlet port of the oil tank of the utility model;

[0020] Figure 3 This is the overall appearance diagram of the detection connector of the utility model;

[0021] Figure 4 This is the internal structure diagram of the disc seat of the utility model;

[0022] Figure 5 This is a partial structural diagram of the rotating block of the utility model;

[0023] Figure 6 For this utility model Figure 4 A in the enlarged view;

[0024] Figure 7 This is a structural diagram of the limit assembly of the utility model;

[0025] Figure 8 This is the overall structure diagram of the base of the utility model;

[0026] Fig. 9 This is an overall top view of the base of the utility model;

[0027] Fig.10 This is the structural diagram of the oil storage cover of the utility model;

[0028] Fig.11 This is a structural diagram of the detection component of the utility model.

[0029] 1. Oil tank; 101. Locking block a; 102. Limiting hole; 2. Oil pump; 3. Detection connector; 4. Disc seat; 401. Adjustment seat; 402. Gear b; 403. Adjustment disc; 5. Rotation block; 501. Strip slot hole; 502. Sliding limit block; 6. Gear a; 7. Limiting assembly; 701. Moving block; 702. Finger slot; 703. Spring a; 704. Insert rod; 8. Base; 9. Flow pipe; 901. Locking block b; 10. Oil storage cover; 1001. Sliding block; 1002. Wire fixing hole; 11. Detection assembly; 1101. Disc a; 1102. Disc b; 1103. Spring b; 1104. Connecting rod; 1105. Rope hanging ring. DETAILED DESCRIPTION

[0030] Embodiment 1

[0031] like Figure 1-11 As shown, the utility model provides a hydraulic power unit leakage detection device, including an oil tank 1, an oil pump 2 and a detection connector 3 installed at the connecting port of the oil pump 2 for oil circulation and oil leakage detection. The oil outlet port of the oil tank 1 is provided with a locking block a101 and a plurality of groups of limiting holes 102 distributed circumferentially on the outer wall of the oil outlet port of the oil tank 1;

[0032] The above-mentioned detection connecting member 3 includes a disc base 4 and a base 8 in an integrated structure. The disc base 4 and the base 8 are specifically summarized as follows:

[0033] The inside of the disc seat 4 is a hollow structure and a circular opening is provided at the center. The inside of the disc seat 4 is provided with at least two groups of rotating blocks 5 with a rotating opening and closing structure and used to limit the oil outlet port of the oil tank 1 and multiple groups of gears a6 corresponding to the positions of the rotating blocks 5 and meshing and transmitting the rotating blocks 5. The multiple groups of gears a6 are connected by a transmission belt. An adjustment seat 401 for providing transmission to one of the multiple groups of gears a6 is provided on the outer wall of the disc seat 4;

[0034] Furthermore, the disc seat 4 uses a plurality of rotating blocks 5 that move in an arc shape to control the opening and closing of the circular opening, which, on the one hand, clamps the oil outlet port of the oil tank 1, and on the other hand, uses the limit assembly 7 arranged on the rotating block 5 to perform a secondary fixation on the oil outlet port of the oil tank 1 on the basis of the locking and fixing of the two sets of locking blocks, thereby enhancing the firmness and stability of the connection between the oil tank 1 and the oil pump 2;

[0035] The base 8 is a hollow structure, and a flow pipe 9 for connecting the oil tank 1 and the oil pump 2 is arranged at the center. A locking block b901 having the same size as the locking block a101 and fixed by screws is arranged at one end of the flow pipe 9. A longitudinally movable oil storage cover 10 is arranged in the annular gap between the flow pipe 9 and the base 8. A plurality of detection components 11 for detecting liquid leakage are arranged on the outer wall of the base 8. The plurality of detection components 11 are fixedly connected to the corresponding inner wall of the oil storage cover 10 by hanging wires.

[0036] The base 8 is the oil circulation part and also the leakage detection part. The connection part of the oil tank 1 and the oil pump 2 can be integrally wrapped by the detection connector 3. When the two sets of locking blocks are loose due to screws loosening and oil leakage occurs, the oil storage cover 10 will be displaced due to the different weights, thereby driving the detection component 11 to adjust its position. The position movement change of the detection component 11 can be used to detect leakage.

[0037] In summary, the present anti-leakage detection device is a connection piece between the oil tank 1 and the oil pump 2. On the basis of improving the stability and firmness of the connection between the oil tank 1 and the oil pump 2, the detection of oil leakage is also integrated, and the function is maximized on the basis of enhancing the practicality;

[0038] The detection connector 3 is installed on the communication port of the oil pump 2. The installation steps of the oil tank 1 on the detection connector 3 are as follows:

[0039] ① The adjusting disk 403 on the adjusting seat 401 at the side end of the disk seat 4 drives the multiple groups of rotating blocks 5 to be in the unfolded and stored state, and the locking block a101 at the oil outlet port of the oil tank 1 is embedded into the base 8 of the detection connector 3, so that the locking block a101 and the locking block b901 on the flow pipe 9 inside the base 8 are locked and fixed by screws;

[0040] ② The adjusting plate 403 is used to drive the rotating block 5 to be in the storage closed state again. When the plug rod 704 on the closed end of the rotating block 5 contacts the corresponding limit hole 102 at the oil outlet port of the oil tank 1, it will be embedded by itself to perform a secondary limit fixation on the oil tank 1. The fixed detection connector 3 will wrap the connecting part between the oil tank 1 and the oil pump 2 as a whole, which has the effect of leak-proof protection;

[0041] At the same time, when the screws connecting the locking block a101 and the locking block b901 are loosened and oil leakage occurs, the oil will flow into the oil storage cover 10 in the base 8. After the oil storage cover 10 contains the oil, the overall weight is increased. The oil storage cover 10 will drive the connecting rod 1104 of the detection component 11 to move to a certain extent through the hanging rope. The scale mark of the connecting rod 1104 is extended and retracted, so as to judge the leakage situation, thereby achieving the effect of leakage detection.

[0042] In order to achieve the best overall wrapping effect on the oil outlet port of the oil tank 1, Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, specifically, the closed end of the rotating block 5 is in an arc-shaped structure, and the circular slot formed at the center after at least two groups of rotating blocks 5 are closed has the same diameter as the oil outlet port of the oil tank 1, and a strip slot 501 is provided on the top surface of the rotating block 5, and a limit assembly 7 is provided in the strip slot 501. A sliding limit block 502 for limiting the movement of the rotating block 5 is provided on the bottom surface of the rotating block 5, and a tooth groove matching the meshing pattern of the gear a6 is provided on the outer end surface of the rotating block 5;

[0043] Further explained, the rotating block 5 moves along an arc track in the disc seat 4. After the rotating block 5 is opened, multiple groups of rotating blocks 5 will be assembled together, and the circular slot hole generated in the center after the assembly will limit and wrap the oil outlet port of the oil tank 1. At the same time, after the locking block a101 of the oil tank 1 and the locking block b901 of the flow pipe 9 are fixed, when the rotating block 5 is rotated to the oil tank 1, the oil outlet port of the oil tank 1 will be secondary limited and fixed by the limiting component 7. When the oil tank 1 and the oil pump 2 are fixed, the rotating block 5 can be stored in the disc seat 4 for hiding. Therefore, based on the opening and closing structure of the rotating block 5, while realizing the integral wrapping of the connecting part of the oil tank 1 and the oil pump 2, it also effectively enhances the firmness and stability of the connection between the oil tank 1 and the oil pump 2.

[0044] Based on the above-mentioned limiter assembly 7, refer to Figure 4 , Figure 6 and Figure 7, further explained, it includes a moving block 701, a spring a703 and a plug rod 704, the moving block 701 is slidably connected in the strip slot 501 and a finger slot 702 is provided on the top surface, the spring a703 and the plug rod 704 are respectively arranged at the two ends of the moving block 701, the spring a703 is connected to the inner wall of the strip slot 501, the plug rod 704 passes through the closed end of the rotating block 5 and is engaged with the limiting hole 102 on the outer wall of the oil outlet port of the oil tank 1, the limiting component 7 is a manual control form, and the spring a703 is used to drive the moving block 701 through the finger slot 702, so that the plug rod 704 is separated from the limiting hole 102 on the outer wall of the oil tank 1, thereby releasing the limit, and when locking, the plug rod 704 will automatically engage with the limiting hole 102 after contacting with the limiting hole 102, thereby effectively avoiding too many screw structures and causing cumbersome disassembly and assembly processes;

[0045] In order to facilitate manual adjustment of the rotating block 5, as Figure 4 , Figure 5 As shown, in conjunction with the meshing transmission of the rotating block 5, a gear b402 is provided inside the adjusting seat 401, and the gear b402 is meshedly connected with one of the multiple groups of gears a6, and an adjusting disk 403 that is synchronously driven with the gear b402 is provided on the top side of the outside of the adjusting seat 401;

[0046] Further explained, the manual operation can be performed by rotating the adjustment disk 403, utilizing the meshing between the gear a6 and the gear b402, and by means of the synchronous transmission between the multiple groups of rotating blocks 5, so as to achieve the synchronous operation of the movement of the multiple groups of rotating blocks 5, and achieve the opening and closing control of the rotating blocks 5, and the overall operation is simple and convenient;

[0047] In order to achieve the best leak detection effect, such as Figure 8 , Fig. 9 and Fig.10 As shown, the outer wall of the oil storage cover 10 is provided with multiple groups of sliders 1001 for limiting the longitudinal sliding position of the oil storage cover 10, and the inner wall of the oil storage cover 10 corresponding to the positions of the multiple groups of sliders 1001 is provided with fixed wire holes 1002 for installing hanging wires;

[0048] Specifically, the anti-leakage detection method mainly uses the weight of the leaking oil to drive the oil storage cover 10 to move longitudinally. In order to achieve a more direct transmission effect, a suspension rope connection is used to drive the displacement of the detection component 11;

[0049] The above detection component 11, see Fig.11, further explained, it includes a disc a1101, a disc b1102, a spring b1103 and a connecting rod 1104, the disc b1102 is fixed on the outer wall of the base 8, one end of the connecting rod 1104 passes through the disc b1102 and is connected to the disc a1101, and the other end passes through the inside of the base 8, the spring b1103 is arranged between the disc a1101 and the disc b1102 and is nested on the connecting rod 1104, and a rope body hanging ring 1105 with an integrated structure is arranged at the through end of the connecting rod 1104, the rope body hanging ring 1105 is connected to the suspension line installed on the fixed line hole 1002, and a telescopic scale mark is printed on the outer wall of the connecting rod 1104;

[0050] Furthermore, the detection component 11 determines the oil condition through the extension and retraction of the connecting rod 1104, and the extension and retraction of the connecting rod 1104 can be more intuitively identified through scale markings.

[0051] Embodiment 2

[0052] The difference between this embodiment and the first embodiment is that, in the above technical solution, an automated warning system is also provided, with a buzzer as a warning device. In addition, a touch terminal is provided on the inner end surface of the disc a1101 of the detection component 11, and a touch sensor corresponding to the position of the touch terminal is provided on the inner end surface of the disc b1102. When the oil storage cover 10 drives the insertion rod 704 to move through the suspension rope, the touch terminal will touch the contact point of the sensor, and a warning will be given through the buzzer. Based on the warning, the position of the sensor and the touch terminal on the disc a1101 should be adjusted in a targeted manner according to the actual situation. 01 and the position on the disc b1102, so that the distance between the sensor and the touch end reaches the predetermined distance, and automatic detection can be achieved when oil leakage occurs. Based on the above, the difference lies in that the bottom surface of the oil storage cover 10 corresponds to the position of multiple detection components 11, and an independent groove extending downward is provided. At the same time, each groove is designed with a conical or inclined structure. When oil leakage occurs, according to the different amount of oil in each groove, the extension and retraction distance of each detection component 11 will have corresponding deviations, so that the direction of the oil leakage can be roughly determined, which provides a certain convenience for subsequent maintenance and replacement.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A hydraulic power unit leakage detection device, characterized in that: The invention comprises an oil tank (1), an oil pump (2) and a detection connector (3) installed at a connecting port of the oil pump (2) for oil circulation and oil leakage prevention detection, wherein the oil outlet port of the oil tank (1) is provided with a locking block a (101) and a plurality of groups of limiting holes (102) distributed circumferentially on the outer wall of the oil outlet port of the oil tank (1); The detection connecting piece (3) comprises a disc seat (4) and a base (8) in an integrated structure; The disc seat (4) is hollow inside and has a circular opening at its center. The disc seat (4) is provided with at least two groups of rotating blocks (5) in a rotating opening and closing structure for limiting the oil outlet port of the oil tank (1) and a plurality of groups of gears a (6) corresponding to the positions of the rotating blocks (5) and meshing and transmitting the rotating blocks (5). The plurality of groups of gears a (6) are connected by a transmission belt. An adjustment seat (401) for providing transmission to one of the plurality of groups of gears a (6) is provided on the outer wall of the disc seat (4); The base (8) is a hollow structure, and a circulation pipe (9) for connecting oil is arranged at the center. A locking block b (901) of the same size as the locking block a (101) and fixed by screws is arranged at one end of the circulation pipe (9). A longitudinally movable oil storage cover (10) is arranged in the annular gap between the circulation pipe (9) and the base (8). A plurality of detection components (11) for detecting liquid leakage are arranged on the outer wall of the base (8). The plurality of detection components (11) are fixedly connected to the corresponding inner wall of the oil storage cover (10) by hanging wires.

2. A hydraulic power unit leakage detection device according to claim 1, characterized in that: The closed end of the rotating block (5) is in an arc-shaped structure; the circular slot holes formed at the center of at least two groups of the rotating blocks (5) after closing have the same diameter as the oil outlet port of the oil tank (1); a strip slot hole (501) is provided on the top surface of the rotating block (5); a limit assembly (7) is provided in the strip slot hole (501); a sliding limit block (502) for limiting the movement of the rotating block (5) is provided on the bottom surface of the rotating block (5); and a tooth groove matching the meshing pattern of the gear a (6) is provided on the outer end surface of the rotating block (5).

3. A hydraulic power unit leakage detection device according to claim 2, characterized in that: The limiting assembly (7) comprises a moving block (701), a spring a (703) and an insertion rod (704); the moving block (701) is slidably connected in the strip-shaped slot hole (501) and is provided with a finger groove (702) on the top surface; the spring a (703) and the insertion rod (704) are respectively arranged at two ends of the moving block (701); the spring a (703) is connected to the inner wall of the strip-shaped slot hole (501); the insertion rod (704) passes through the closed end of the rotating block (5) and is engaged with the limiting hole (102) on the outer wall of the oil outlet port of the oil tank (1).

4. A hydraulic power unit leakage detection device according to claim 1, characterized in that: The adjusting seat (401) is provided with a gear b (402) inside, and the gear b (402) is meshedly connected with one of the multiple groups of gears a (6). The top side of the adjusting seat (401) is provided with an adjusting disk (403) that is synchronously driven with the gear b (402).

5. The anti-leakage detection device for a hydraulic power unit according to claim 1, characterized in that: The outer wall of the oil storage cover (10) is provided with a plurality of groups of sliders (1001) for limiting the longitudinal sliding position of the oil storage cover (10), and the inner wall of the oil storage cover (10) corresponding to the positions of the plurality of groups of sliders (1001) is provided with wire fixing holes (1002) for installing hanging wires.

6. A hydraulic power unit leakage detection device according to claim 1, characterized in that: The detection component (11) comprises a disk a (1101), a disk b (1102), a spring b (1103) and a connecting rod (1104); the disk b (1102) is fixed on the outer wall of the base (8); one end of the connecting rod (1104) passes through the disk b (1102) and is connected to the disk a (1101), and the other end passes through the inside of the base (8); the spring b (1103) is arranged between the disk a (1101) and the disk b (1102) and is nested on the connecting rod (1104).

7. A hydraulic power unit leakage detection device according to claim 6, characterized in that: A rope body hanging ring (1105) of an integrated structure is arranged at the through end of the connecting rod (1104), and the rope body hanging ring (1105) is connected to the suspension wire installed on the wire fixing hole (1002). The outer wall of the connecting rod (1104) is printed with a telescopic scale mark.

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