Environment-friendly connector for loading and unloading fluid

Abstract

A connecting valve body is arranged between a connecting flange component and a quick butt joint component, the connecting valve body comprises a core pipe, a shell pipe capable of rotating along the core pipe is sleeved outside the core pipe, and a rotary sealing mechanism is arranged between two end parts of the shell pipe and the core pipe; a liquid leakage prevention sealing bayonet and a sealing body matched with the sealing bayonet are arranged on the inner diameter of the female connector, a piston rod connected with the sealing body is arranged in the connecting core pipe, a spiral groove is formed in the pipe wall of the connecting core pipe, a transverse control rod is fixedly installed at the end of the piston rod, and the end of the transverse control rod extends out of the spiral groove of the connecting core pipe. A limiting straight groove matched with the transverse control rod is formed in the inner wall of the outer shell pipe in the axial direction of the outer shell pipe, and the end of the transverse control rod is arranged in the limiting straight groove. The transmission mechanism and the driving mechanism of the liquid leakage prevention sealing mechanism are both arranged in the shell pipe body. The liquid leakage prevention device is simple in structure, high in connection reliability, convenient to operate and good in liquid leakage prevention effect.

Description

Technical Field

[0001] This utility model relates to a fluid loading and unloading device, and in particular to an environmentally friendly fluid loading and unloading connector. Background Technology

[0002] Fluids are generally transported using tank trucks. The tank trucks are filled by connecting storage tanks to the tank trucks via pipe joints for pressurization. The existing form of the tank truck interface is primarily a male connector, with at least one groove formed around the circumference of the male connector's insertion post. The groove has an arc-shaped cross-section. Currently, conventional female connectors are often used for connection. After connection, two cams on the female connector are manually rotated to engage the cams into the grooves.

[0003] The female connector contains a leak-proof sealing mechanism. After filling and before separating the pipe joint, it is usually necessary to perform operations outside the pipe to ensure the leak-proof sealing mechanism is sealed before pipe separation. Current technology uses a gear and rack mechanism inside the connector to control the sealing piston, and an operating mechanism outside the pipe to control the gears. However, the gear and rack are constantly exposed to highly corrosive fluids, which significantly reduces their lifespan, causes operational difficulties, leads to incomplete sealing, and can result in leaks. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by proposing a fluid loading and unloading environmentally friendly connector with high connection reliability.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution: a fluid loading and unloading environmental protection connector, including a connecting flange component and a quick docking component. The quick docking component includes a female connector, a positioning steel ball, a fixing sleeve and a backstop spring. A connecting valve body is provided between the connecting flange component and the quick docking component. The characteristic is that the connecting valve body includes a core tube connected between the female connector and the connecting flange. An outer shell tube that can rotate along the core tube is fitted outside the core tube. A rotary sealing mechanism is provided between the two ends of the outer shell tube and the core tube.

[0006] The female connector has a leak-proof sealing buckle and a sealing body that mates with the sealing buckle on its inner diameter. A piston rod that connects to the sealing body is located inside the connecting core tube.

[0007] The connecting core tube has a spiral groove on its wall. A transverse control rod is fixedly installed at the end of the piston rod. The end of the transverse control rod extends out of the spiral groove of the connecting core tube. A limiting straight groove that cooperates with the transverse control rod is opened along the axial direction of the outer shell tube on the inner wall of the outer shell tube. The end of the transverse control rod is set in the limiting straight groove.

[0008] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: a positioning and locking mechanism is provided between the core tube and the outer shell tube.

[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: the positioning and locking mechanism includes a locking groove provided on the core tube wall, and a corresponding locking hole and positioning pin provided on the outer shell tube.

[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: the outer shell tube is equipped with a handle for convenient rotation of the outer shell tube.

[0011] Compared with the prior art, the transmission mechanism and drive mechanism of the leak-proof sealing mechanism are both set inside the outer shell tube, which has a simple structure, high connection reliability, convenient operation and good leak-proof effect. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0013] Figure 2 This is a three-dimensional assembly drawing of the present invention. Detailed Implementation

[0014] The specific technical solutions of the present invention are further described below. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, and to facilitate a better understanding of the present invention by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments, and do not constitute a limitation on its rights. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] An environmentally friendly fluid loading and unloading connector, as shown in the figure: 1 positioning thread, 2 fixing sleeve, 3 anti-reverse spring, 4 piston, 5 steel ball, 6 core tube, 7 sealing ring, 8 gasket, 9 positioning pin, 10 outer shell tube, 11 sealing plate, 12 PTFE gasket, 13 thread, 14 flange, 15 screw.

[0016] The specific structure includes a connecting flange component and a quick-connect component. The quick-connect component includes a female connector, a positioning steel ball, a fixing sleeve, and a backstop spring. The tank interface is a male connector. At least one groove is formed around the insertion post of the male connector. The groove has an arc-shaped cross-section. Under the action of the backstop spring, the fixing sleeve makes the positioning steel ball cooperate with the groove for quick connection of the male and female connectors. A positioning thread is installed at the end of the female connector.

[0017] A connecting valve body is provided between the connecting flange component and the quick docking component. The connecting valve body includes a core tube connected between the female connector and the connecting flange. An outer shell tube that can rotate along the core tube is fitted outside the core tube. A rotary sealing mechanism is provided between the two ends of the outer shell tube and the core tube.

[0018] The inner diameter of the female connector is provided with a leak-proof sealing buckle and a sealing body that mates with the sealing buckle. A piston rod connected to the sealing body is provided inside the connecting core tube. A spiral groove is opened on the wall of the connecting core tube. A transverse control rod is fixedly installed at the end of the piston rod. The end of the transverse control rod extends out from the spiral groove of the connecting core tube. A limiting straight groove that mates with the transverse control rod is opened along the axial direction of the outer shell tube on the inner wall of the outer shell tube. The end of the transverse control rod is set in the limiting straight groove.

[0019] The rotating outer casing tube's lateral control rod moves along the rotating groove. The end of the lateral control rod moves axially in the limiting straight groove, which drives the piston rod to move axially, driving the sealing body and the sealing bayonet to achieve sealing and separation.

[0020] A positioning and locking mechanism is provided between the core tube and the outer shell tube. The positioning and locking mechanism includes a locking groove provided on the wall of the core tube, and a corresponding locking hole and positioning pin provided on the outer shell tube. A handle for easy rotation of the outer shell tube is provided.

[0021] The locking groove includes an open position locking groove and a sealed position locking groove, which prevents misoperation during loading and unloading and increases installation stability.

Claims

1. A fluid loading and unloading environmentally friendly connector, comprising a connecting flange component and a quick-connect component, the quick-connect component comprising a female connector, a positioning steel ball, a fixing sleeve, and a retaining spring, and a connecting valve body provided between the connecting flange component and the quick-connect component, characterized in that: The connecting valve body includes a core tube connected between the female connector and the connecting flange, and an outer shell tube that can rotate along the core tube is fitted outside the core tube. Rotary sealing mechanisms are provided between the two ends of the outer shell tube and the core tube. The female connector has a leak-proof sealing buckle and a sealing body that mates with the sealing buckle on its inner diameter. A piston rod that connects to the sealing body is located inside the connecting core tube. The connecting core tube has a spiral groove on its wall. A transverse control rod is fixedly installed at the end of the piston rod. The end of the transverse control rod extends out of the spiral groove of the connecting core tube. A limiting straight groove that cooperates with the transverse control rod is opened along the axial direction of the outer shell tube on the inner wall of the outer shell tube. The end of the transverse control rod is set in the limiting straight groove.

2. The fluid loading and unloading environmental protection connector according to claim 1, characterized in that: A positioning and locking mechanism is provided between the core tube and the outer shell tube.

3. The fluid loading and unloading environmental protection connector according to claim 2, characterized in that: The positioning and locking mechanism includes a locking groove provided on the core tube wall, and a corresponding locking hole and positioning pin provided on the outer shell tube.

4. The fluid loading and unloading environmental protection connector according to claim 1, characterized in that: The outer casing tube is equipped with a handle for easy rotation of the outer casing tube.

Images