Quick connector for centralized lubrication system

Abstract

The utility model discloses a quick connector for a centralized lubrication system, which comprises a secondary connector and a primary connector, the outer end of the secondary connector is provided with a fixing sleeve, the fixing sleeve is connected with a buckle, the primary connector is internally provided with a steel ball, the inner wall of the primary connector is provided with a rubber strip, the secondary connector and the primary connector are internally provided with fixing rods, and the fixing rods are connected with the buckle. A telescopic rod penetrates through the fixed rod, a spring is arranged on the telescopic rod, and a baffle is installed at the right end of the telescopic rod. Through cooperation of a buckle, a steel ball and a groove, the buckle limits the steel ball in the groove, the steel ball plays a role in limiting the child connector, the child connector and the mother connector are convenient to connect and disassemble and are not prone to falling off, the sealing performance of the device is improved through arrangement of a rubber strip, and through cooperation of a fixing plate, a telescopic rod, a spring and a baffle, the sealing performance of the device is improved. Liquid can flow through the device when the child connector and the mother connector are connected, and the child connector and the mother connector are in a sealed state after being separated.

Description

Technical Field

[0001] The utility model relates to the technical field of quick connectors, in particular to a quick connector for a centralized lubrication system. Background Art

[0002] A quick connector is a connector that can quickly connect and disconnect pipes or gas lines. It is a connection device widely used in various fields. It does not require the use of tools and has many advantages. The working principle of the quick connector is mainly to use the close fit of the plug and the connector body to achieve connection and disconnection, which saves time and effort, is safe and reliable. Quick connectors can be divided into: quick connectors for air, quick connectors for oxygen fuel gas, quick connectors for gas and liquid, quick connectors for oil pressure, quick connectors for inert gas, quick connectors for cooling water temperature oil, and semiconductor quick connectors. In summary, quick connectors play an important role in modern industrial production and daily life with their unique advantages and wide application fields.

[0003] There is a Chinese patent application number CN210003996U for a quick connector. The existing device realizes the sealing of the sealing ring by assembling a nut and another connector to press against a retaining ring. A sealing gasket is provided between the retaining ring and the force-bearing surface of the nut. By setting two sealing positions, there are multiple sealing positions between the two connectors, thereby improving the sealing performance of the product. However, the existing device does not consider the quick connection and disassembly of the quick connector during installation, which is not conducive to saving manpower, and the liquid with impurities in the device during circulation will cause the device to be blocked, which is not easy to clean.

[0004] Therefore, we propose a quick connector for a centralized lubrication system to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a quick connector for a centralized lubrication system to solve the problem that the existing device proposed in the above background technology does not take into account the quick connection and disassembly of the quick connector during installation, which is not conducive to saving manpower, and the liquid with impurities in the device during circulation will cause the device to be blocked and difficult to clean.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a quick connector for a centralized lubrication system, comprising a sub-connector and a female connector,

[0007] The outer end of the sub-joint is provided with a fixing sleeve, and a buckle is connected to the fixing sleeve, a steel ball is installed inside the female joint, and a rubber strip is provided on the inner wall of the female joint, and a fixing rod is installed inside the sub-joint and the female joint, and a telescopic rod passes through the fixing rod, a spring is provided on the telescopic rod, and a baffle is installed at the right end of the telescopic rod;

[0008] The right end of the sub-joint is provided with a thread groove, and a thread block is connected in the thread groove. The right end of the thread block is connected to a fixing block, and the fixing block is connected to a filter screen.

[0009] Preferably, the sub-joint is fixedly connected to the fixing sleeve, and the fixing sleeve is rotatably connected to the buckle, and a torsion spring is connected between the fixing sleeve and the buckle.

[0010] By adopting the above technical solution, the right end of the sub-connector is inserted into the female connector, the sub-connector and the female connector are slidably connected, the buckle is rotated to engage the buckle with the groove at the left end of the female connector, and the buckle is locked and limited by the torsion spring.

[0011] Preferably, a groove is provided at the front end of the female connector, and the groove is movably connected to the steel ball, and the buckle is snap-connected to the groove, the inner wall of the female connector is fixedly connected to the rubber strip, and the rubber strip is slidably connected to the sub-connector.

[0012] By adopting the above technical solution, the steel ball is restricted in the groove through the sub-connector and the buckle, and the steel ball plays a limiting role to limit the displacement of the sub-connector, prevent the device from falling off when the liquid is flowing, and facilitate disassembly. A rubber strip is installed at the connection between the sub-connector and the female connector to increase the sealing of the device and prevent liquid leakage when the liquid is flowing through the device.

[0013] Preferably, the inner wall of the sub-connector is symmetrically provided with grooves, and the inner wall of the female connector is symmetrically provided with grooves.

[0014] By adopting the above technical solution, the liquid flows through the inner grooves of the sub-connector and the female connector.

[0015] Preferably, the sub-joint and the female joint are fixedly connected to the fixed rod, and the fixed rod is slidably connected to the telescopic rod, the telescopic rod is fixedly connected to the baffle, and the telescopic rod passes through the spring, the left end of the spring is fixedly connected to the fixed rod, and the right end of the spring is fixedly connected to the baffle.

[0016] By adopting the above technical solution, when the sub-joint and the mother joint are engaged, the two baffles interact with each other to push the telescopic rod to both ends respectively, and the two springs shrink under pressure. When the sub-joint is disassembled, the sub-joint can be pulled out by rotating the buckle, and the spring expands, driving the baffle and the telescopic rod to reset. The baffle seals the sub-joint and the mother joint.

[0017] Preferably, a thread groove is symmetrically provided at the right end of the sub-connector, and the thread groove is threadedly connected to the thread block, the thread block is rotatably connected to the fixed block, and the fixed blocks are fixedly connected to the filter screen.

[0018] By adopting the above technical solution, the filter is fixed at the front end of the sub-joint through the threaded connection of the thread groove and the threaded block, and the filter is easy to disassemble, which is conducive to cleaning the filter and maintaining the device. The setting of the filter prevents impurities in the liquid from clogging the device.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the centralized lubrication system uses a quick connector;

[0020] 1. Through the cooperation between the buckle, the steel ball and the groove, the buckle restricts the steel ball in the groove, and the steel ball plays a limiting role on the sub-joint, so that the sub-joint and the female joint are easy to connect and remove, and not easy to fall off. The setting of the rubber strip increases the sealing of the device. By using the cooperation of the fixing plate, the telescopic rod, the spring and the baffle, the device can circulate liquid when the sub-joint and the female joint are connected. After the sub-joint and the female joint are separated, the sub-joint and the female joint are in a sealed state to prevent liquid leakage;

[0021] 2. The combination of threaded groove, threaded block, fixed block and filter screen makes it easy to disassemble the filter screen, which prevents the device from being blocked and is also conducive to cleaning the filter screen, ensuring the fluidity of the device and playing a maintenance role for the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the steel ball structure of the utility model;

[0024] Figure 3 For this utility model Figure 1 A is an enlarged schematic diagram of the structure;

[0025] Figure 4 This is a schematic diagram of the spring structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the rubber strip of the utility model.

[0027] In the figure: 1. sub-connector; 2. female connector; 3. fixing sleeve; 4. buckle; 5. steel ball; 6. rubber strip; 7. fixing rod; 8. telescopic rod; 9. spring; 10. baffle; 11. threaded groove; 12. threaded block; 13. fixing block; 14. filter. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-5The utility model provides a technical solution: a quick connector for a centralized lubrication system, comprising a sub-joint 1 and a female joint 2, a fixing sleeve 3 is arranged at the outer end of the sub-joint 1, and a buckle 4 is connected to the fixing sleeve 3, a steel ball 5 is installed inside the female joint 2, and a rubber strip 6 is arranged on the inner wall of the female joint 2, a fixing rod 7 is installed inside the sub-joint 1 and the female joint 2, and a telescopic rod 8 is passed through the fixing rod 7, a spring 9 is arranged on the telescopic rod 8, and a baffle 10 is installed at the right end of the telescopic rod 8, the sub-joint 1 and the fixing sleeve 3 are fixed The female joint 2 is fixedly connected, and the fixing sleeve 3 is rotatably connected with the buckle 4, a groove is provided at the front end of the female joint 2, and the groove is movably connected with the steel ball 5, and the buckle 4 is engaged with the groove, the inner wall of the female joint 2 is fixedly connected with the rubber strip 6, and the rubber strip 6 is slidably connected with the sub-joint 1, the inner wall of the sub-joint 1 is symmetrically provided with grooves, and the inner wall of the female joint 2 is symmetrically provided with grooves, the sub-joint 1 and the female joint 2 are fixedly connected with the fixing rod 7, and the fixing rod 7 is slidably connected with the telescopic rod 8, the telescopic rod 8 is fixedly connected with the baffle 10, and the telescopic rod 8 passes through the spring 9 The left end of the spring 9 is fixedly connected to the fixing rod 7, and the right end of the spring 9 is fixedly connected to the baffle 10. The right end of the sub-joint 1 is inserted into the female joint 2, and the sub-joint 1 is slidably connected with the female joint 2. The buckle 4 is rotated to engage the buckle 4 with the groove at the left end of the female joint 2. The torsion spring locks and limits the buckle 4 to fix the buckle 4. The sub-joint 1 and the buckle 4 limit the steel ball 5 in the groove, and the steel ball 5 plays a limiting role to limit the displacement of the sub-joint 1, prevent the device from falling off when the liquid is circulated, and facilitate disassembly. The sub-joint 1 and the female joint are connected. A rubber strip 6 is installed at the connection of the joint 2 to increase the sealing of the device and prevent liquid leakage when the device is flowing through the liquid. When the sub-joint 1 and the female joint 2 are engaged, the two baffles 10 interact with each other to push the telescopic rod 8 to both ends respectively. The two springs 9 are compressed under pressure, and the liquid flows through the internal grooves of the sub-joint 1 and the female joint 2. When the sub-joint 1 is disassembled, the buckle 4 can be rotated to pull out the sub-joint 1, and the spring 9 is relaxed to drive the baffle 10 and the telescopic rod 8 to reset. The baffle 10 plays a sealing role on the sub-joint 1 and the female joint 2;

[0030] A thread groove 11 is provided at the right end of the sub-joint 1, and a thread block 12 is connected in the thread groove 11, a fixed block 13 is connected to the right end of the thread block 12, and a filter screen 14 is connected to the fixed block 13. The thread groove 11 is symmetrically provided at the right end of the sub-joint 1, and the thread groove 11 is threadedly connected to the thread block 12, the thread block 12 is rotatably connected to the fixed block 13, and the fixed blocks 13 are fixedly connected to the filter screen 14. Through the threaded connection between the thread groove 11 and the thread block 12, the thread block 12 and the fixed block 13 are rotatably connected, the fixed block 13 and the filter screen 14 are fixedly connected, the filter screen 14 is fixed at the front end of the sub-joint 1, and the filter screen 14 is easy to disassemble, which is conducive to cleaning the filter screen 14 and maintaining the device. The setting of the filter screen 14 prevents impurities in the liquid from clogging the device.

[0031] Working principle: When using the quick connector for the centralized lubrication system, insert the right end of the sub-connector 1 into the left end of the female connector 2, and connect the buckle 4 and the female connector 2 by rotating the buckle 4. The torsion spring locks the buckle 4, and the buckle 4 and the sub-connector 1 restrict the steel ball 5 in the groove of the female connector 2. At the same time, the steel ball 5 limits the sub-connector 1. The rubber strip 6 is connected at the connection between the sub-connector 1 and the female connector 2 to increase the sealing of the device. When the sub-connector 1 and the female connector 2 are engaged, the internal baffle 10 of the sub-connector 1 and the internal baffle 10 of the female connector 2 interact with each other to respectively The telescopic rod 8 is pushed toward both ends to compress the spring 9 connected between the fixed rod 7 and the baffle 10. The baffle 10 is compressed toward both ends to the inside of the sub-joint 1 and the female joint 2. The liquid flows through the grooves and is threadedly connected to the threaded block 12 and the threaded groove 11 to connect the filter screen 14 to the right end of the sub-joint 1 to prevent blockage. The filter screen 14 is easy to disassemble and clean. After the device is used, the buckle 4 is rotated to pull out the sub-joint 1, and the spring 9 drives the baffle 10 and the telescopic rod 8 to reset. The baffle 10 seals the sub-joint 1 and the female joint 2.

[0032] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick connector for a centralized lubrication system, comprising a sub-connector (1) and a female connector (2), characterized in that: The outer end of the sub-joint (1) is provided with a fixing sleeve (3), and the fixing sleeve (3) is connected with a buckle (4); the interior of the female joint (2) is provided with a steel ball (5), and the inner wall of the female joint (2) is provided with a rubber strip (6); the interiors of the sub-joint (1) and the female joint (2) are both provided with a fixing rod (7), and a telescopic rod (8) passes through the fixing rod (7), and a spring (9) is provided on the telescopic rod (8), and a baffle (10) is installed at the right end of the telescopic rod (8); The right end of the sub-joint (1) is provided with a thread groove (11), and a thread block (12) is connected in the thread groove (11). The right end of the thread block (12) is connected to a fixing block (13), and the fixing block (13) is connected to a filter screen (14).

2. A quick connector for a centralized lubrication system according to claim 1, characterized in that: The sub-joint (1) is fixedly connected to the fixing sleeve (3), and the fixing sleeve (3) is rotatably connected to the buckle (4), and a torsion spring is connected between the fixing sleeve (3) and the buckle (4).

3. A quick connector for a centralized lubrication system according to claim 1, characterized in that: The front end of the female connector (2) is provided with a groove, and the groove is movably connected to the steel ball (5), and the buckle (4) is snap-fitted and connected to the groove, the inner wall of the female connector (2) is fixedly connected to the rubber strip (6), and the rubber strip (6) is slidably connected to the sub-connector (1).

4. A quick connector for a centralized lubrication system according to claim 1, characterized in that: The inner wall of the sub-joint (1) is symmetrically provided with grooves, and the inner wall of the female joint (2) is symmetrically provided with grooves.

5. The quick connector for a centralized lubrication system according to claim 1, characterized in that: The sub-joint (1) and the female joint (2) are fixedly connected to the fixed rod (7), and the fixed rod (7) is slidably connected to the telescopic rod (8), the telescopic rod (8) is fixedly connected to the baffle (10), and the telescopic rod (8) passes through the spring (9), the left end of the spring (9) is fixedly connected to the fixed rod (7), and the right end of the spring (9) is fixedly connected to the baffle (10).

6. A quick connector for a centralized lubrication system according to claim 1, characterized in that: The right end of the sub-joint (1) is symmetrically provided with a thread groove (11), and the thread groove (11) is threadedly connected to a thread block (12), the thread block (12) is rotatably connected to a fixed block (13), and the fixed blocks (13) are fixedly connected to the filter screen (14).

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