Connecting device for loading and unloading arm and tank opening

Abstract

The utility model provides a connecting device for a loading and unloading arm and a tank opening, which belongs to the field of fluid loading and unloading and comprises a stand column, a loading and unloading arm body is mounted on the side wall of the stand column, a discharge pipe is communicated with the loading and unloading arm body, a sealing cap is slidably connected to the side wall of the discharge pipe, and the sealing cap is conical. A protection assembly is mounted on the loading and unloading arm body; an adjusting assembly; the adjusting assembly comprises an outer threaded pipe fixedly connected to the side wall of the discharging pipe, a lifting sleeve is slidably connected to the side wall of the discharging pipe, a supporting frame is fixedly connected to the upper end face of the lifting sleeve, a first rotating gear is rotationally connected to the upper end face of the supporting frame, and the outer threaded pipe penetrates through the first rotating gear in a threaded mode. According to the utility model, counter-acting force is applied to the sealing cap through the spring bracket, the sealing effect of canning is improved, and after the height of the can opening is reduced, the sealing cap is always attached to the can opening under the action of the elastic force of the spring bracket, so that the sealing effect of the sealing cap is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid loading and unloading, in particular to a connecting device of a loading and unloading arm and a tank mouth. Background Art

[0002] A loading and unloading arm is an industrial device used to transfer liquid and gaseous products between ground equipment and liquid tank trucks or other movable containers. It is mainly used for loading and unloading liquids that are highly volatile, flammable, explosive, or environmentally hazardous. Existing loading and unloading arms generally use a sealing cap to cover the tank mouth of the tank truck to achieve the purpose of sealed loading. The sealing cap is usually connected to a return air pipe to adapt to different loading needs.

[0003] However, as the medium continues to enter the tank truck, the internal pressure of the tank truck gradually increases, which will cause the tires of the tank truck to be flattened, thereby reducing the height of the tank truck. The height of the outer arm of the loading and unloading arm with the old outer arm lock cannot keep up, causing the sealing cap to detach from the tank truck mouth, affecting the sealing effect. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a connecting device between a loading and unloading arm and a tank opening.

[0005] The embodiment of the present utility model provides a device for connecting a loading and unloading arm to a tank opening, comprising:

[0006] A column, a loading and unloading arm body is installed on the side wall of the column, a discharge pipe is connected to the loading and unloading arm body, a sealing cap is slidably connected to the side wall of the discharge pipe, and the sealing cap is conical, and a protection component is installed on the loading and unloading arm body;

[0007] Adjustment assembly; the adjustment assembly includes an externally threaded tube fixedly connected to the side wall of the discharge pipe, a lifting sleeve is slidably connected to the side wall of the discharge pipe, the upper end face of the lifting sleeve is fixedly connected to a support frame, the upper end face of the support frame is rotatably connected to a first rotating gear, the externally threaded tube thread passes through the first rotating gear, a servo motor is fixedly installed on the upper end face of the lifting sleeve, the rotating end of the servo motor is fixedly connected to the second rotating gear, the first rotating gear and the second rotating gear are meshed, the lower end face of the lifting sleeve is fixedly connected to a group of spring frames, a group of the spring frames are fixedly connected to the sealing cap, and a group of limit assemblies are installed on the lifting sleeve.

[0008] Furthermore, the limiting assembly includes a fixed rod fixedly connected to the lifting sleeve, a limiting groove is opened on the fixed rod, the limiting rod is slidably connected in the limiting groove, a group of limiting blocks is fixedly connected to the side wall of the limiting rod, a group of lifting grooves is opened on the inner wall of the limiting groove, a group of limiting blocks are respectively slidably connected to a group of lifting grooves, and a group of fixed rods are respectively sleeved in a group of spring frames.

[0009] Furthermore, the protection component includes two air pipes fixedly installed on the side wall of the loading and unloading arm body, and the two air pipes are connected to each other by a hose. One end of one of the air pipes is fixedly connected to the column, and one end of the other air pipe is connected to a corrugated hose, and the corrugated hose is connected to the sealing cap.

[0010] Furthermore, the gas pipe is made of polytetrafluoroethylene.

[0011] Furthermore, both ends of the externally threaded pipe are fixedly connected to limit plates, and the two limit plates are fixedly connected to the side walls of the discharge pipe.

[0012] Furthermore, the sealing cap is composed of a stainless steel frame and a rubber layer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Insert the discharge pipe into the tank mouth so that the sealing cap covers the tank mouth to achieve the purpose of sealing and filling. Then the servo motor starts to work, causing the spring frame to gradually contract. The spring frame exerts a reaction force on the sealing cap to improve the sealing effect of the can. When the medium is continuously filled, the internal pressure of the tank body gradually increases and the height of the tank mouth drops. At this time, under the action of the elastic force of the spring frame, the sealing cap always fits the tank mouth, thereby ensuring the sealing effect of the sealing cap.

[0015] 2. Use the limiting rod to limit the sealing sleeve to prevent the spring frame from being in a stretched state for a long time and causing spring wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural stereoscopic diagram of a loading and unloading arm and tank mouth connecting device described in an embodiment of the present utility model.

[0017] Figure 2 It is a three-dimensional side view of the structure of a loading and unloading arm and tank mouth connection device described in an embodiment of the present utility model.

[0018] Figure 3 It is a three-dimensional cross-sectional view of the fixing rod structure of a loading and unloading arm and tank mouth connecting device described in an embodiment of the present utility model.

[0019] In the above drawings: 1 column, 2 loading and unloading arm body, 3 discharge pipe, 4 sealing cap, 5 external threaded pipe, 6 lifting sleeve, 7 support frame, 8 first rotating gear, 9 servo motor, 10 second rotating gear, 11 spring frame, 12 fixing rod, 13 limit rod, 14 limit block, 15 air pipe, 16 corrugated hose. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 3 As shown, the embodiment of the present invention provides a device for connecting a loading and unloading arm to a tank opening, comprising:

[0022] The column 1 has a loading and unloading arm body 2 installed on its side wall. The loading and unloading arm body 2 is connected to a discharge pipe 3. The discharge pipe 3 has a sealing cap 4 slidably connected to its side wall. The sealing cap 4 is composed of a stainless steel frame and a rubber layer. The sealing cap 4 is conical. A protective component is installed on the loading and unloading arm body 2.

[0023] Adjustment assembly; the adjustment assembly includes an externally threaded tube 5 fixedly connected to the side wall of the discharge pipe 3, a lifting sleeve 6 is slidably connected to the side wall of the discharge pipe 3, the upper end face of the lifting sleeve 6 is fixedly connected to a support frame 7, the upper end face of the support frame 7 is rotatably connected to the first rotating gear 8, the externally threaded tube 5 threads through the first rotating gear 8, a servo motor 9 is fixedly installed on the upper end face of the lifting sleeve 6, the rotating end of the servo motor 9 is fixedly connected to the second rotating gear 10, the first rotating gear 8 and the second rotating gear 10 are engaged, a group of spring frames 11 are fixedly connected to the lower end face of the lifting sleeve 6, a group of spring frames 11 are fixedly connected to the sealing cap 4, a group of limit assemblies are installed on the lifting sleeve 6, both ends of the externally threaded tube 5 are fixedly connected to the limit plates, and the two limit plates are fixedly connected to the side wall of the discharge pipe 3, which can limit the lifting distance of the lifting sleeve 6 to prevent the lifting sleeve 6 from dislocating;

[0024] The limiting assembly includes a fixed rod 12 fixedly connected to the lifting sleeve 6, a limiting groove is formed on the fixed rod 12, a limiting rod 13 is slidably connected in the limiting groove, a group of limiting blocks 14 are fixedly connected to the side wall of the limiting rod 13, a group of lifting grooves are formed on the inner wall of the limiting groove, a group of limiting blocks 14 are respectively slidably connected to a group of lifting grooves, and a group of fixed rods 12 are respectively sleeved in a group of spring frames 11;

[0025] The protection component includes two gas pipes 15 fixedly installed on the side walls of the loading and unloading arm body 2. The two gas pipes 15 are connected to each other by a hose. One end of one gas pipe 15 is fixedly connected to the column 1, and one end of the other gas pipe 15 is connected to a corrugated hose 16. The corrugated hose 16 is connected to the sealing cap 4. The gas pipe 15 is made of polytetrafluoroethylene. Polytetrafluoroethylene has excellent resistance to strong acids and strong alkalis, and can increase the service life of the gas pipe 15. The protection component is mainly used to provide gas protection during the working process to prevent the volatilization of the medium and ensure the safety of operation. The gas pipe 15 maintains the oxygen concentration in the loading and unloading area within a safe range by providing inert gas, such as nitrogen, thereby preventing explosions and fires.

[0026] The detailed working process of this utility model is as follows:

[0027] First, the user places the device in the designated workplace, then inserts the discharge pipe 3 into the tank mouth so that the sealing cap 4 covers the tank mouth to achieve the purpose of sealing and filling. Then the servo motor 9 starts to work, and the rotating end of the servo motor 9 drives the second rotating gear 10 to rotate, and the second rotating gear 10 drives the first rotating gear 8 to rotate. The first rotating gear 8 can slide downward on the external threaded tube 5, thereby driving the lifting sleeve 6 to slide downward, and the spring frame 11 will gradually shrink. The limiting rod 13 located in the fixed rod 12 slides in the limiting groove, and the spring frame 11 applies a reaction force to the sealing cap 4, so that the sealing cap 4 and the tank mouth fit tightly, thereby improving the sealing effect of the canning. When the medium is continuously filled, the medium continuously enters the tank, and the internal pressure of the tank body gradually increases, which will cause the tire of the conveyor vehicle to be flattened and the height of the tank mouth to drop. At this time, under the action of the elastic force of the spring frame 11, the sealing cap 4 will cooperate with the tank mouth to drop, so that the sealing cap 4 is always fitted to the tank mouth, thereby ensuring the sealing effect of the sealing cap 4.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A device for connecting a loading and unloading arm to a tank opening, characterized in that: include: A column (1), a loading and unloading arm body (2) is installed on the side wall of the column (1), a discharge pipe (3) is connected to the loading and unloading arm body (2), a sealing cap (4) is slidably connected to the side wall of the discharge pipe (3), and the sealing cap (4) is conical. A protection component is installed on the loading and unloading arm body (2); An adjusting component; the adjusting component comprises an externally threaded tube (5) fixedly connected to the side wall of the discharge pipe (3); the side wall of the discharge pipe (3) is slidably connected to a lifting sleeve (6); the upper end surface of the lifting sleeve (6) is fixedly connected to a support frame (7); the upper end surface of the support frame (7) is rotatably connected to a first rotating gear (8); the externally threaded tube (5) is threaded through the first rotating gear (8); a servo motor (9) is fixedly installed on the upper end surface of the lifting sleeve (6); the rotating end of the servo motor (9) is fixedly connected to a second rotating gear (10); the first rotating gear (8) and the second rotating gear (10) are meshed; the lower end surface of the lifting sleeve (6) is fixedly connected to a group of spring frames (11); the group of spring frames (11) are all fixedly connected to the sealing cap (4); and a group of limit assemblies are installed on the lifting sleeve (6).

2. A device for connecting a loading and unloading arm to a tank opening according to claim 1, characterized in that: in: The limiting assembly comprises a fixing rod (12) fixedly connected to the lifting sleeve (6); a limiting groove is provided on the fixing rod (12); a limiting rod (13) is slidably connected in the limiting groove; a group of limiting blocks (14) is fixedly connected to the side wall of the limiting rod (13); a group of lifting grooves is provided on the inner wall of the limiting groove; a group of limiting blocks (14) are respectively slidably connected to a group of lifting grooves; and a group of fixing rods (12) are respectively sleeved in a group of spring frames (11).

3. The device for connecting a loading and unloading arm to a tank opening according to claim 1, characterized in that: in: The protection assembly comprises two air pipes (15) fixedly mounted on the side wall of the loading and unloading arm body (2), wherein the two air pipes (15) are connected to a hose, wherein one end of one of the air pipes (15) is fixedly connected to the column (1), and one end of the other air pipe (15) is connected to a corrugated hose (16), and the corrugated hose (16) is connected to the sealing cap (4).

4. A device for connecting a loading and unloading arm to a tank opening according to claim 3, characterized in that: in: The gas delivery pipe (15) is made of polytetrafluoroethylene.

5. The device for connecting a loading and unloading arm to a tank opening according to claim 1, characterized in that: in: Both ends of the externally threaded tube (5) are fixedly connected to limit plates, and the two limit plates are fixedly connected to the side walls of the discharge pipe (3).

6. The device for connecting a loading and unloading arm to a tank opening according to claim 2, characterized in that: in: The sealing cap (4) is composed of a stainless steel frame and a rubber layer.

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