Rapid fault detection device of hydraulic oil cylinder piston sealing structure

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a rapid fault detection device of a hydraulic oil cylinder piston sealing structure, which comprises a hydraulic oil cylinder, one side of the hydraulic oil cylinder close to the upper end is communicated with an oil inlet, one side of the hydraulic oil cylinder close to the lower end is communicated with an oil outlet, and one end of the oil inlet is communicated with a connecting pipe. The other end of the connecting pipe is communicated with the output end of the hand pump; two bottom plates are symmetrically mounted at the bottom of the hand pump, each screw rod is sequentially rotated, the screw rods can move downwards in the supporting column through cooperation between the screw rods and the threaded cavities, and along with continuous downward movement of the screw rods, the screw rods can drive the conical head to move downwards through the connecting rod. And after the four conical heads are all adjusted out, the hand pump can be stably pricked on the ground through the four conical heads at the bottom when being placed on the ground, so that the hand pump does not displace during use, and the convenience during operation is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of detection devices, specifically relating to a rapid fault detection device for the piston sealing structure of a hydraulic cylinder. Background Technology

[0002] In industrial production and various engineering operations, hydraulic cylinders are critical actuators, and the reliability of their piston sealing structure directly affects the performance and operational stability of the entire hydraulic system. To enable timely and accurate detection of faults in the hydraulic cylinder piston sealing structure, rapid fault detection devices for hydraulic cylinder piston sealing structures have emerged. These devices can efficiently assess the condition of the piston sealing structure using specific technical means, greatly improving the efficiency and accuracy of equipment maintenance, reducing downtime caused by hydraulic cylinder failures, and minimizing production losses.

[0003] However, in practical applications, when testing is required in areas with poor geological conditions, especially where the surface is soft, ordinary support structures struggle to provide stable and reliable support due to the weight of the testing device itself and the dynamic forces generated during the testing process. This can cause the hand pump in the testing device to shift during operation, resulting in inconvenience for the operators. Utility Model Content

[0004] The purpose of this invention is to provide a rapid fault detection device for the piston sealing structure of a hydraulic cylinder. It aims to solve the problem that, in practical applications, when testing is required in areas with poor geological conditions, especially soft ground surfaces, ordinary support structures struggle to provide stable and reliable support due to the weight of the testing device itself and the dynamic forces generated during the testing process. This makes it easy for the hand pump in the testing device to shift during operation, causing inconvenience to the operator.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid fault detection device for the piston sealing structure of a hydraulic cylinder, comprising a hydraulic cylinder, wherein an oil inlet is connected to the upper side of the hydraulic cylinder, and an oil outlet is connected to the lower side of the hydraulic cylinder, one end of the oil inlet is connected to a connecting pipe, and the other end of the connecting pipe is connected to the output end of a hand pump.

[0006] The hand pump has two base plates symmetrically installed at its bottom. Each base plate has two support columns symmetrically welded to its bottom. The bottom of each support column is attached with an anti-slip pad. A screw is installed through the top of each base plate and connects to the inside of the support column.

[0007] To prevent the hand pump from shifting during use when placed on slightly soft ground, as a rapid fault detection device for the hydraulic cylinder piston sealing structure of this utility model, preferably, the bottom of the screw is connected to a connecting rod, and the bottom of the connecting rod is fixedly connected to a cone.

[0008] A movable disc is fixedly connected to the top of the connecting rod, and the movable disc is movably installed inside the screw at the connection end of the connecting rod.

[0009] In order to enable the cone head to be adjusted in and out as needed, as a rapid fault detection device for the hydraulic cylinder piston sealing structure of this utility model, preferably, the support column has a threaded cavity inside near the upper end and a contraction cavity inside near the lower end, and the bottom of the threaded cavity is connected to the upper end of the contraction cavity.

[0010] A spring is installed inside the contraction cavity. The bottom of the spring is fixedly connected to the surface of the cone. The internal size of the contraction cavity is larger than the size of the cone. The diameter of the spring is larger than the inner diameter of the threaded cavity. The connecting rod is located inside the spring.

[0011] In order to enable the screw to perform the lifting function, as a rapid fault detection device for the hydraulic cylinder piston sealing structure of this utility model, preferably, the screw forms a threaded connection structure with the support column through the threaded cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When using it, place the hand pump on the ground. If the ground surface is relatively soft, you can perform the following operations:

[0014] First, rotate each screw in sequence. The screw, through its engagement with the threaded cavity, moves downwards inside the support column. As the screw moves downwards, it drives the cone head downwards via the connecting rod. This allows the cone head to move out of the contraction chamber. Once all four cone heads are adjusted, the hand pump will be firmly anchored to the ground by the four cone heads at the bottom, preventing displacement during use and improving ease of operation. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main view structure provided for an embodiment of this application.

[0017] Figure 2This is a bottom view of the structure provided for an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the support column provided in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the screw provided in an embodiment of this application.

[0020] In the diagram: 1. Hydraulic cylinder; 2. Oil inlet; 3. Oil outlet; 4. Connecting pipe; 5. Hand pump; 6. Base plate; 7. Support column; 71. Anti-slip pad; 72. Screw; 73. Connecting rod; 731. Movable disc; 74. Cone; 701. Threaded cavity; 702. Contraction cavity; 703. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides the following technical solution: a rapid fault detection device for the piston sealing structure of a hydraulic cylinder, including a hydraulic cylinder 1, an oil inlet 2 connected to the upper side of the hydraulic cylinder 1, an oil outlet 3 connected to the lower side of the hydraulic cylinder 1, one end of the oil inlet 2 being connected to a connecting pipe 4, and the other end of the connecting pipe 4 being connected to the output end of a hand pump 5.

[0023] Two base plates 6 are symmetrically installed on the bottom of the hand pump 5. Two support columns 7 are symmetrically welded to the bottom of each base plate 6. Anti-slip pads 71 ​​are glued to the bottom of the support columns 7. When the hand pump 5 is used on a horizontal surface, the cone head 74 can be retracted into the contraction chamber 702. In this way, the support columns 7 will be supported on the smooth surface by the anti-slip pads 71. At this time, the anti-slip pads 71 ​​can enhance the friction between the two, so that the hand pump 5 can remain stable when it is placed on the ground.

[0024] A screw 72 is installed through the top of the base plate 6, and the screw 72 passes through the base plate 6 and connects to the interior of the support column 7.

[0025] When in use, connect one end of the connecting pipe 4 to the oil inlet 2, and then start pressurizing through the hand pump 5. When the pressure reaches the inside of the hydraulic cylinder 1, the pressure at the top of the hydraulic cylinder 1 will increase. If the piston sealing structure inside the hydraulic cylinder 1 is intact, no hydraulic oil will flow out of the oil outlet 3.

[0026] Conversely, if hydraulic oil flows out of outlet 3, it indicates that the piston sealing structure inside hydraulic cylinder 1 is faulty and needs maintenance.

[0027] In this way, the piston sealing structure of hydraulic cylinder 1 can be quickly and easily tested for faults.

[0028] Preferably, the bottom of the screw 72 is connected to a connecting rod 73, and the bottom of the connecting rod 73 is fixedly connected to a cone 74;

[0029] A movable disc 731 is fixedly connected to the top of the connecting rod 73, and the movable disc 731 is movably installed inside the screw 72 at the connection end with the connecting rod 73.

[0030] In practical use, when the screw 72 rotates downward inside the support column 7, it will rotate along the outer wall of the movable disk 731. In this way, the connecting rod 73 will not rotate synchronously with the screw 72, thus allowing the cone 74 to move vertically.

[0031] Preferably, the support column 7 has a threaded cavity 701 inside near the upper end and a contraction cavity 702 inside near the lower end, with the bottom of the threaded cavity 701 communicating with the upper end of the contraction cavity 702.

[0032] A spring 703 is installed inside the contraction cavity 702. The bottom of the spring 703 is fixedly connected to the surface of the cone head 74. The internal size of the contraction cavity 702 is larger than the size of the cone head 74. The diameter of the spring 703 is larger than the inner diameter of the threaded cavity 701. The connecting rod 73 is located inside the spring 703.

[0033] In practical use, the spring 703 can absorb some of the kinetic energy, thereby improving the stability of the bottom support column 7.

[0034] Preferably, the screw 72 forms a threaded connection structure with the support column 7 through the threaded cavity 701.

[0035] In practical use, if the ground surface is relatively soft during the actual use of the hand pump 5, the following detailed steps can be followed to ensure the stability of the hand pump 5 during operation:

[0036] First, locate each screw 72 on the side of the hand pump 5. These screws 72 are tightly fitted with the threaded cavities 701 inside the support column 7. When each screw 72 is rotated clockwise in sequence, due to the interaction between the threads, the screw 72 will gradually move downward inside the support column 7 along the axial direction of the threaded cavity 701.

[0037] As the screw 72 continues to advance downwards, it connects to the cone 74 via the connecting rod 73, creating a linkage. Specifically, the downward movement of the screw 72 is transmitted to the cone 74 through the connecting rod 73, causing the cone 74 to move downwards synchronously. The cone 74, originally housed inside the contraction cavity 702, gradually extends out of the contraction cavity 702 as this operation progresses.

[0038] After adjusting the four screws 72 sequentially, ensuring that all four cones 74 are successfully dislodged from the contraction chamber 702, the hand pump 5, when placed on soft ground, will have its four cones 74 firmly embedded in the ground due to their sharp shapes. This effectively prevents displacement caused by soft ground during subsequent use of the hand pump 5, greatly improving operational convenience.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid fault detection device for the piston sealing structure of a hydraulic cylinder, comprising a hydraulic cylinder (1), wherein an oil inlet (2) is connected to the upper side of the hydraulic cylinder (1), and an oil outlet (3) is connected to the lower side of the hydraulic cylinder (1), characterized in that, One end of the oil inlet (2) is connected to the connecting pipe (4), and the other end of the connecting pipe (4) is connected to the output end of the hand pump (5); The hand pump (5) has two base plates (6) symmetrically installed at the bottom. Each base plate (6) has two support columns (7) symmetrically welded to its bottom. The bottom of the support column (7) is bonded with an anti-slip pad (71). The top of the base plate (6) is fitted with a screw (72), which passes through the base plate (6) and connects to the inside of the support column (7).

2. The rapid fault detection device for the hydraulic cylinder piston sealing structure according to claim 1, characterized in that: The bottom of the screw (72) is connected to a connecting rod (73), and the bottom of the connecting rod (73) is fixedly connected to a cone (74).

3. The rapid fault detection device for the hydraulic cylinder piston sealing structure according to claim 2, characterized in that: The top of the connecting rod (73) is fixedly connected to a movable disc (731), and the connecting end of the movable disc (731) and the connecting rod (73) is movably installed inside the screw (72).

4. The rapid fault detection device for the hydraulic cylinder piston sealing structure according to claim 1, characterized in that: The support column (7) has a threaded cavity (701) near the upper end and a contraction cavity (702) near the lower end. The bottom of the threaded cavity (701) is connected to the upper end of the contraction cavity (702).

5. The rapid fault detection device for the hydraulic cylinder piston sealing structure according to claim 4, characterized in that: A spring (703) is installed inside the contraction cavity (702), and the bottom of the spring (703) is fixedly connected to the surface of the cone (74). The internal size of the contraction cavity (702) is larger than the size of the cone (74).

6. The rapid fault detection device for the hydraulic cylinder piston sealing structure according to claim 1, characterized in that: The screw (72) forms a threaded connection structure with the support column (7) through the threaded cavity (701).

7. The rapid fault detection device for the hydraulic cylinder piston sealing structure according to claim 4, characterized in that: The inner diameter of the threaded cavity (701) is smaller than the diameter of the spring (703), and the connecting rod (73) is located inside the spring (703).

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