Hydraulic oil cylinder leakage-proof mechanism for construction machinery

Abstract

The utility model provides a leakage-proof mechanism of a hydraulic oil cylinder for construction machinery, which relates to the technical field of oil cylinders and comprises a cylinder body, and an auxiliary mechanism is arranged in the cylinder body. The auxiliary mechanism comprises a piston rod, the piston rod is slidably connected into the cylinder body, the right end of the piston rod is fixedly connected with a piston body, a steel wire telescopic hose is arranged on the outer surface of the cylinder body, the inner wall of the steel wire telescopic hose is fixedly connected with a first anti-leakage ring and a second anti-leakage ring, and the inner wall of the first anti-leakage ring is fixedly connected with the outer surface of the piston rod. According to the hydraulic oil cylinder leakage-proof mechanism for the building machinery, the problem that leaked hydraulic oil cannot be collected when sealing fails is solved, the situation that the hydraulic oil is scattered on the ground to pollute the surrounding environment is avoided, and the capacity of reminding when leakage occurs due to sealing failure is achieved; and economic loss caused by long-time oil leakage due to the fact that the leakage condition is difficult to observe in the working process is prevented.

Description

Technical Field

[0001] The utility model relates to an oil cylinder anti-leakage mechanism, specifically a hydraulic oil cylinder anti-leakage mechanism for construction machinery, belonging to the technical field of hydraulic oil cylinders. Background Technique

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and makes a linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it can eliminate the need for a speed reduction device, has no transmission gap, and has a stable motion. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] In a hydraulic oil cylinder anti-oil leakage mechanism disclosed in the Chinese Patent Application Publication Specification CN215409517U, a filter screen is used to filter the hydraulic oil introduced into the cylinder barrel through the oil inlet pipe, avoiding a large amount of impurities from entering the oil cylinder and wearing the piston seal until it is damaged, thus preventing oil leakage. This reduces the possibility of oil leakage during the use of the hydraulic cylinder and ensures the normal use of the hydraulic oil cylinder. However, when the sealing ring fails, the leaked hydraulic oil cannot be collected, and the hydraulic oil will spill onto the ground, causing pollution to the surrounding environment. At the same time, the hydraulic oil cannot be well treated, and there is no reminder when leakage occurs due to seal failure, making it difficult to observe the leakage situation during the working process. Long-term oil leakage will cause economic losses and also affect the performance of the hydraulic oil cylinder during operation. Content of the Utility Model

[0004] The utility model is realized through the following technical solutions: A hydraulic oil cylinder anti-leakage mechanism for construction machinery includes a cylinder body, and an auxiliary mechanism is arranged inside the cylinder body;

[0005] The auxiliary mechanism includes a piston rod, the piston rod is slidably connected inside the cylinder body, a piston body is fixedly connected to the right end of the piston rod, a steel wire telescopic hose is arranged on the outer surface of the cylinder body, a first anti-leakage ring and a second anti-leakage ring are fixedly connected to the inner wall of the steel wire telescopic hose respectively, the inner wall of the first anti-leakage ring is fixedly connected to the outer surface of the piston rod, the inner wall of the second anti-leakage ring is fixedly connected to the outer surface of the cylinder body, a pressure sensor is fixedly connected to the left end of the piston body, a buzzer and an alarm lamp are arranged outside the cylinder body respectively, and both the buzzer and the alarm lamp are electrically connected to the pressure sensor through wires.

[0006] Specifically, a cylinder head is fixedly connected to the inner wall of the cylinder body, a dust-proof ring is fixedly connected to the inner wall of the cylinder head, the inner wall of the dust-proof ring is in contact with the outer surface of the piston rod, a fixed block is fixedly connected to the outer surface of the cylinder body, the bottoms of both the buzzer and the alarm lamp are fixedly connected to the upper surface of the fixed block, a buffer block is fixedly connected to the inner side wall of the cylinder body, and two oil inlet pipes are fixedly communicated with the outer surface of the cylinder body.

[0007] Further, a first connection block is fixedly connected to the right end of the cylinder block, and a second connection block is fixedly connected to the left end of the piston rod.

[0008] Preferably, a sealing ring is fixedly connected to the inner wall of the piston body, and the outer surface of the sealing ring is in contact with the inner wall of the cylinder block.

[0009] Further, a protective shell is arranged on the outer surface of the pressure sensor, and the right end of the protective shell is fixedly connected to the left end of the piston body.

[0010] Preferably, a transparent protective shell is commonly arranged outside the buzzer and the warning lamp, and the bottom surface of the transparent protective shell is fixedly connected to the upper surface of the fixed block.

[0011] The utility model provides a leakage prevention mechanism for a hydraulic cylinder of a construction machine, and the beneficial effects thereof are as follows:

[0012] For the leakage prevention mechanism of the hydraulic cylinder of the construction machine, the piston rod is moved by adding hydraulic oil into the cylinder block, and when the hydraulic oil leaks externally, it is stored in the steel wire telescopic hose by the cooperation of the first leakage prevention ring and the second leakage prevention ring, preventing the hydraulic oil from dripping onto the ground and polluting the environment. At the same time, when the hydraulic oil leaks, the pressure in the cylinder block will continuously decrease. At this time, the pressure sensor can monitor the change of the pressure value in the cylinder block and quickly send an electrical signal to the buzzer and the warning lamp through a wire. Furthermore, the surrounding personnel are reminded by the sound of the buzzer and the flashing of the warning lamp, so as to facilitate timely inspection and maintenance of it, solve the problem that the leaked hydraulic oil cannot be collected when the seal fails, avoid the pollution of the surrounding environment caused by the hydraulic oil spilling on the ground, the leaked hydraulic oil can be processed subsequently, and the ability to give a reminder when the seal fails and leakage occurs is realized, preventing economic losses caused by long-term oil leakage due to the difficulty of observing the leakage situation during the working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the cylinder block of the utility model;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of the cylinder head of the utility model;

[0015] Figure 3 It is a schematic cross-sectional structure diagram of the steel wire telescopic hose of the utility model;

[0016] Figure 4 It is a schematic cross-sectional structure diagram of the fixed block of the utility model.

[0017] DESCRIPTION OF THE REFERENCE NUMERALS

[0018] 1. Cylinder block;

[0019] 2. Auxiliary mechanism; 201. Piston rod; 202. Piston body; 203. Cylinder head; 204. Steel wire telescopic hose; 205. First leak-proof ring; 206. Second leak-proof ring; 207. Pressure sensor; 208. Fixed block; 209. Buzzer; 210. Alarm light; 211. Buffer block; 212. Oil inlet pipe; 213. Dust-proof ring;

[0020] 3. First connecting block; 4. Second connecting block; 5. Sealing ring; 7. Protective shell; 8. Transparent protective shell. Detailed implementation manner

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , an anti-leakage mechanism for a hydraulic cylinder of construction machinery provided by an embodiment of the present utility model includes a cylinder block 1, and an auxiliary mechanism 2 is arranged inside the cylinder block 1; the auxiliary mechanism 2 includes a piston rod 201, the piston rod 201 is slidably connected inside the cylinder block 1, the right end of the piston rod 201 is fixedly connected with a piston body 202, the inner wall of the cylinder block 1 is fixedly connected with a cylinder head 203, the inner wall of the cylinder head 203 is fixedly connected with a dust-proof ring 213, the inner wall of the dust-proof ring 213 is in contact with the outer surface of the piston rod 201, the right end of the cylinder block 1 is fixedly connected with a first connecting block 3, the left end of the piston rod 201 is fixedly connected with a second connecting block 4, the inner wall of the piston body 202 is fixedly connected with a sealing ring 5, the outer surface of the sealing ring 5 is in contact with the inner wall of the cylinder block 1. The cooperation of the cylinder head 203 and the dust-proof ring 213 can avoid guiding the moving direction of the piston rod 201 and prevent external dust from entering the cylinder block 1, increasing the service life of the device. At the same time, the first connecting block 3 and the second connecting block 4 can respectively fix different objects, thereby assisting during work, and relying on the sealing ring 5 to improve the sealing effect between the piston body 202 and the inner wall of the cylinder block 1, reducing the risk of oil leakage and increasing the use effect of the device.

[0022] Please refer specifically to Figure 3 and Figure 4, a steel wire telescopic hose 204 is arranged on the outer surface of the cylinder block 1. The inner walls of the steel wire telescopic hose 204 are respectively fixedly connected with a first anti-leakage ring 205 and a second anti-leakage ring 206. The inner wall of the first anti-leakage ring 205 is fixedly connected with the outer surface of the piston rod 201, and the inner wall of the second anti-leakage ring 206 is fixedly connected with the outer surface of the cylinder block 1. A pressure sensor 207 is fixedly connected to the left end of the piston body 202. A buzzer 209 and an alarm lamp 210 are respectively arranged outside the cylinder block 1. Both the buzzer 209 and the alarm lamp 210 are electrically connected to the pressure sensor 207 through wires. A fixing block 208 is fixedly connected to the outer surface of the cylinder block 1. The bottoms of the buzzer 209 and the alarm lamp 210 are both fixedly connected to the upper surface of the fixing block 208. A buffer block 211 is fixedly connected to the inner side wall of the cylinder block 1. Two oil inlet pipes 212 are fixedly communicated with the outer surface of the cylinder block 1. A protective shell 7 is arranged on the outer surface of the pressure sensor 207. The right end of the protective shell 7 is fixedly connected to the left end of the piston body 202. A transparent protective shell 8 is commonly arranged outside the buzzer 209 and the alarm lamp 210. The bottom surface of the transparent protective shell 8 is fixedly connected to the upper surface of the fixing block 208. The fixing block 208 provides an effective supporting position for the buzzer 209 and the alarm lamp 210, increasing their stability during operation. At the same time, the transparent protective shell 8 can prevent foreign objects from damaging the buzzer 209 and the alarm lamp 210, increasing the service life of the device. At the same time, the buffer block 211 can prevent the piston body 202 from colliding with the inner wall of the cylinder block 1, reducing the wear of the piston body 202 and further improving the service life of the device. The cylinder block 1 is conveniently filled with hydraulic oil through the two oil inlet pipes 212. At the same time, the protective shell 7 can increase the protection of the pressure sensor 207.

[0023] When the utility model is in use: First, connect the external hydraulic oil pipes to the two oil inlet pipes 212 respectively, and inject hydraulic oil into the cylinder block 1 by relying on the cooperation of the external hydraulic oil pipes and the oil inlet pipes 212, so as to drive the piston rod 201 to move by the piston body 202. At this time, the sealing ring 5 can increase the sealing performance between the piston rod 201 and the inner wall of the cylinder block 1, reducing the risk of oil leakage. At the same time, the buffer block 211 can prevent the piston body 202 from colliding with the inner wall of the cylinder block 1, reducing the wear of the piston body 202. When the internal hydraulic oil leaks out along with the piston rod 201 after long-term use, the steel wire telescopic hose 204 can collect the leaked hydraulic oil, preventing the hydraulic oil from falling to the ground and polluting the surrounding environment, and storing the hydraulic oil in the steel wire telescopic hose 204 by relying on the cooperation of the first anti-leakage ring 205 and the second anti-leakage ring 206, so as to facilitate the subsequent treatment of the hydraulic oil, effectively reducing the economic loss during oil leakage. At the same time, the pressure inside the cylinder block 1 will continuously decrease due to the continuous leakage of hydraulic oil. At this time, the pressure sensor 207 can accurately monitor the change of the internal pressure, and send an electrical signal to the buzzer 209 and the warning light 210 through the wire when the pressure value continues to decrease, so as to make them work. At this time, rely on the buzzer sound of the buzzer 209 and the flashing light of the warning light 210 to remind the surrounding operators, so as to facilitate timely inspection and maintenance of it, preventing continuous oil leakage and causing economic losses.

[0024] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder anti-leakage mechanism for construction machinery, comprising a cylinder body (1), characterized in that: An auxiliary mechanism (2) is arranged inside the cylinder (1); The auxiliary mechanism (2) comprises a piston rod (201), wherein the piston rod (201) is slidably connected to the inside of the cylinder body (1), the right end of the piston rod (201) is fixedly connected to a piston body (202), the outer surface of the cylinder body (1) is provided with a steel wire telescopic hose (204), the inner wall of the steel wire telescopic hose (204) is respectively fixedly connected to a first leak-proof ring (205) and a second leak-proof ring (206), the inner wall of the first leak-proof ring (205) is fixedly connected to the outer surface of the piston rod (201), the inner wall of the second leak-proof ring (206) is fixedly connected to the outer surface of the cylinder body (1), the left end of the piston body (202) is fixedly connected to a pressure sensor (207), and the outside of the cylinder body (1) is respectively provided with a buzzer (209) and an alarm light (210), and the buzzer (209) and the alarm light (210) are both electrically connected to the pressure sensor (207) through a wire.

2. The anti-leakage mechanism for a hydraulic cylinder for construction machinery according to claim 1, characterized in that: The inner wall of the cylinder body (1) is fixedly connected to a cylinder head (203), the inner wall of the cylinder head (203) is fixedly connected to a dust ring (213), the inner wall of the dust ring (213) is in contact with the outer surface of the piston rod (201), the outer surface of the cylinder body (1) is fixedly connected to a fixing block (208), the bottom ends of the buzzer (209) and the warning light (210) are fixedly connected to the upper surface of the fixing block (208), the inner side wall of the cylinder body (1) is fixedly connected to a buffer block (211), and the outer surface of the cylinder body (1) is fixedly connected to two oil inlet pipes (212).

3. The anti-leakage mechanism for a hydraulic cylinder for construction machinery according to claim 1, characterized in that: The right end of the cylinder body (1) is fixedly connected to a first connection block (3), and the left end of the piston rod (201) is fixedly connected to a second connection block (4).

4. The anti-leakage mechanism for a hydraulic cylinder for construction machinery according to claim 1, characterized in that: A sealing ring (5) is fixedly connected to the inner wall of the piston body (202), and the outer surface of the sealing ring (5) is in contact with the inner wall of the cylinder body (1).

5. The anti-leakage mechanism for a hydraulic cylinder for construction machinery according to claim 1, characterized in that: The outer surface of the pressure sensor (207) is provided with a protective shell (7), and the right end of the protective shell (7) is fixedly connected to the left end of the piston body (202).

6. The anti-leakage mechanism for a hydraulic cylinder for construction machinery according to claim 1, characterized in that: A transparent protective shell (8) is commonly provided outside the buzzer (209) and the warning light (210), and the bottom surface of the transparent protective shell (8) is fixedly connected to the upper surface of the fixing block (208).

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