Loading and unloading crane pipe with moving mechanism
By introducing a moving mechanism and electric components into the loading and unloading arm, flexible movement of the arm and directional adjustment of the conical sleeve are achieved, solving the shortcomings of the existing loading arm in fixed position during loading and unloading of iso/n-butane and propane, and improving its flexibility and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-07
AI Technical Summary
The existing loading arms used for loading and unloading isobutane/n-butane have fixed adjustment carrier positions, making it difficult to move flexibly between different pipe bodies. In addition, the inlet end orientation is fixed, resulting in unsatisfactory applicability.
A loading arm with a moving mechanism was designed, including a base plate, a vertical guide lifting assembly, a lifting box, a horizontal and vertical rotary flow control assembly, a conical rubber sleeve, and an explosion-proof hose. The device can be moved flexibly and the orientation of the conical rubber sleeve can be adjusted by components such as casters, electric slide rails, and a brake motor.
It improves the flexibility and applicability of loading arms in field use, facilitates recycling among multiple tanks, and adapts to docking at the inlet end in different directions.
Smart Images

Figure CN224091617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loading and unloading arms, specifically a loading and unloading arm with a moving mechanism. Background Technology
[0002] Loading arms: Specialized equipment used in the petrochemical industry for loading and unloading fluids. Also known as fluid loading arms, they connect to rigid pipes and elbows via rotary joints to facilitate the transfer of media between transport tanks and corresponding gas or liquid tanks. This replaces older hose connections and offers high safety, flexibility, and long service life. The products conform to GB50074-2002 "Code for Design of Petroleum Depots" and are ideal specialized equipment for receiving and dispatching oil products. They can be widely used in the chemical industry and other sectors for receiving and dispatching various liquid raw materials. This type of loading arm is required for loading and unloading isobutane / n-butane and propane.
[0003] Existing loading arms for iso / n-butane and propane loading and unloading often have fixed adjustment frames, which have the following shortcomings: 1. It is difficult to move them flexibly between different pipe bodies for recycling, resulting in unsatisfactory flexibility in field use; 2. The orientation of the inlet joint is fixed, with some tank inlets facing different directions and others having their inlets located laterally on the upper side, making it difficult to accommodate various inlet docking configurations and resulting in unsatisfactory applicability. In view of this, this application proposes a loading arm with a moving mechanism to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a loading arm with a moving mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a loading and unloading arm with a moving mechanism, comprising:
[0006] The base plate is equipped with lockable casters at each of its four bottom corners;
[0007] The vertical guide lifting assembly is fixedly installed on the top of the base plate;
[0008] The lifting box is fixedly installed on the right side of the vertical guide lifting assembly; the vertical guide lifting assembly is used to drive the lifting box to move vertically up and down.
[0009] The horizontal and vertical rotary flow control assembly is installed on the lifting box;
[0010] A conical rubber sleeve is fixedly fitted on the outer side of the end of the horizontal and vertical rotary flow-through assembly. The horizontal and vertical rotary flow-through assembly is used to drive the conical rubber sleeve to move up and down to adjust the height when the lifting box moves up and down. After adjustment, it is driven to move down to be inserted into the inlet end of the butane or propane tank that needs to be unloaded. It is also used to flexibly adjust the orientation of the conical rubber sleeve according to the orientation of the butane or propane tank inlet.
[0011] An explosion-proof hose is connected and fixed to the bottom end of the horizontal and vertical rotary flow-through assembly, and one end of the explosion-proof hose is connected and fixed to a pipe joint.
[0012] The grinding-enhancing parking assembly is fixedly installed at the bottom of the base plate; the grinding-enhancing parking assembly is used to assist in stabilizing the vehicle at the bottom.
[0013] Preferably, the vertical guide lifting assembly includes a U-shaped support plate fixedly connected to the top of the base plate. An electric slide rail is fixedly installed on the top of the U-shaped support plate. Two L-shaped guide rods are fixedly connected to the top of the U-shaped support plate on both sides of the electric slide rail. The same rectangular sleeve is slidably fitted on the four L-shaped guide rods. The right side of the moving end of the electric slide rail is fixedly connected to the right inner wall of the rectangular sleeve. The right side of the rectangular sleeve is fixedly connected to the left side of the lifting box. An explosion-proof hose passes through the inside of the U-shaped support plate and is fixedly connected to the top inner wall of the U-shaped support plate.
[0014] Preferably, the horizontal and vertical rotary flow control assembly includes an L-shaped tube rotatably mounted on the top of the lifting box, a vertical tube fixedly mounted on the bottom of the lifting box and sealed rotatably inside the L-shaped tube, the bottom end of the vertical tube being connected and fixedly connected to the top end of the explosion-proof hose, an L-shaped horizontal tube being sealed rotatably mounted inside the L-shaped tube, a conical rubber sleeve being fixedly mounted on the outside of the bottom end of the L-shaped horizontal tube and connected to its interior, a first brake motor being fixedly mounted on the left side of the L-shaped tube, the output shaft of the first brake motor extending into the L-shaped tube and fixedly connected to the left end of the L-shaped horizontal tube by a V-shaped rod, an external gear ring located inside the lifting box being fixedly mounted on the L-shaped tube, a gear meshing on the left side of the external gear ring, and a second brake motor whose output shaft is fixedly connected to the top of the gear being fixedly mounted on the top left side of the lifting box.
[0015] Preferably, the grinding and parking assembly includes two electric telescopic rods embedded and fixed to the bottom of the base plate. The extended ends of the two electric telescopic rods are fixedly connected to the same pressure plate, and the bottom of the pressure plate is bonded and fixed with an anti-slip rubber pad with an uneven bottom structure.
[0016] Preferably, four supports are fixedly installed in a rectangular shape on the top left side of the base plate. The top of the four supports is fixedly connected to the same counterweight block for counterweight support. A storage battery is fixedly installed on the top of the counterweight block. The electric slide rail, the first brake motor, the second brake motor and the electric telescopic rod are all electrically connected to the storage battery.
[0017] Preferably, a synchronous control switch electrically connected to the battery is fixedly installed on the top front side of the counterweight, and both electric telescopic rods are electrically connected to the synchronous control switch.
[0018] Preferably, the L-shaped tube is fitted with three vertically arranged first sealing bearings and three horizontally arranged first sealing bearings. The inner ring of the horizontally arranged first sealing bearings is fixedly fitted to the outer side of the L-shaped horizontal tube, and the inner ring of the vertically arranged first sealing bearings is fixedly fitted to the outer side of the vertical tube.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. With the help of the grinding and parking components, base plate and lockable casters, it is easy to move flexibly on site and support anti-slip and stable parking. The movable design allows for easy recycling among multiple tanks on site, improving the flexibility of on-site use.
[0021] 2. Through the combination of the base plate, vertical guide lifting assembly, lifting box, horizontal and vertical rotary flow control assembly and explosion-proof hose, the orientation of the conical rubber sleeve can be flexibly adjusted, which is convenient for docking and loading / unloading of butane or propane tanks with different inlet directions, thus improving docking applicability.
[0022] This utility model features a series of structures that facilitate flexible movement and anti-slip stability on-site. Its mobility allows for easy recycling among multiple tanks on-site, improving on-site flexibility. Furthermore, the orientation of the conical rubber sleeve can be flexibly adjusted, making it suitable for docking and loading / unloading butane or propane tanks with different inlet directions, thus improving docking applicability. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a loading arm with a moving mechanism proposed in this utility model.
[0024] Figure 2 This is a cross-sectional structural diagram of a loading and unloading arm with a moving mechanism proposed in this utility model.
[0025] Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram.
[0026] In the diagram: 1. Base plate; 101. Counterweight; 2. Electric telescopic rod; 201. Pressure plate; 3. U-shaped support plate; 301. Electric slide rail; 302. Rectangular sleeve; 303. L-shaped guide rod; 4. Lifting box; 401. L-shaped tube; 402. L-shaped horizontal tube; 403. Vertical tube; 404. First brake motor; 405. V-shaped rod; 406. External gear ring; 407. Gear; 408. Second brake motor; 5. Conical rubber sleeve; 6. Explosion-proof hose. Detailed Implementation
[0027] 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.
[0028] like Figures 1 to 3 As shown in the figure, the loading and unloading arm with a moving mechanism proposed in this embodiment includes:
[0029] Base plate 1, with lockable casters mounted at each of the four bottom corners;
[0030] The vertical guide lifting assembly is fixedly installed on the top of the base plate 1;
[0031] The lifting box 4 is fixedly installed on the right side of the vertical guide lifting assembly; the rear side of the lifting box 4 is set as an opening and a door for blocking the interior is fixedly installed; the vertical guide lifting assembly is used to drive the lifting box 4 to move vertically up and down.
[0032] The horizontal and vertical rotary flow control assembly is installed on the lifting box 4;
[0033] The conical rubber sleeve 5 is fixedly sleeved on the outer side of the end of the horizontal and vertical rotary flow-through assembly; the horizontal and vertical rotary flow-through assembly is used to drive the conical rubber sleeve 5 to move up and down to adjust the height when the lifting box 4 moves up and down, and to use the adjusted drive to move down to insert it into the inlet end of the butane or propane tank that needs to be unloaded. It is also used to flexibly adjust the orientation of the conical rubber sleeve 5 according to the orientation of the butane or propane tank inlet.
[0034] The explosion-proof hose 6 is connected and fixed to the bottom end of the horizontal and vertical rotary flow-through assembly, and one end of the explosion-proof hose 6 is connected and fixed to a pipe joint.
[0035] The grinding-enhancing parking assembly is fixedly installed at the bottom of the base plate 1; the grinding-enhancing parking assembly is used to assist in stabilizing the parking process at the bottom.
[0036] Specifically, the vertical guide lifting assembly includes a U-shaped support plate 3 fixedly connected to the top of the base plate 1. An electric slide rail 301 is fixedly installed on the top of the U-shaped support plate 3. Two L-shaped guide rods 303 are fixedly connected to the top of the U-shaped support plate 3 on both sides of the electric slide rail 301. A rectangular sleeve 302 is slidably fitted onto the four L-shaped guide rods 303. The top of the rectangular sleeve 302 has four vertical guide holes that slide onto the outer sides of the corresponding L-shaped guide rods 303, thus guiding the vertical sliding of the rectangular sleeve 302. The right side of the moving end of the electric slide rail 301 is connected to... The right inner wall of the rectangular sleeve 302 is fixedly connected, and the right side of the rectangular sleeve 302 is fixedly connected to the left side of the lifting box 4. The explosion-proof hose 6 passes through the inner side of the U-shaped support plate 3 and is fixedly connected to the top inner wall of the U-shaped support plate 3. The U-shaped support plate 3, the electric slide rail 301, the L-shaped guide rod 303 and the rectangular sleeve 302 are arranged in cooperation. The electric slide rail 301 drives the rectangular sleeve 302 to slide up and down on the four L-shaped guide rods 303. The four L-shaped guide rods 303 guide the rectangular sleeve 302 vertically. The rectangular sleeve 302 drives the lifting box 4 to move up and down to adjust the height.
[0037] Furthermore, the horizontal and vertical rotary flow control assembly includes an L-shaped tube 401 rotatably mounted on the top of the lifting box 4. The top of the lifting box 4 has a circular through-hole, within which a first bearing is fixedly fitted. The inner ring of the first bearing is fixedly fitted to the outer side of the L-shaped tube 401, achieving the effect of rotating the L-shaped tube 401. A vertical tube 403, fixedly mounted on the bottom of the lifting box 4, is rotatably fitted inside the L-shaped tube 401. The bottom of the lifting box 4 has an insertion hole fixedly connected to the outer side of the vertical tube 403. The bottom end of the vertical tube 403 is connected and fixedly connected to the top end of the explosion-proof hose 6. An L-shaped horizontal tube 402 is rotatably fitted inside the L-shaped tube 401. Three vertically arranged first sealing bearings and three horizontally arranged first sealing bearings are fixedly fitted inside the L-shaped tube 401. The inner ring of the horizontally arranged first sealing bearings is fixedly fitted to the outer side of the L-shaped horizontal tube 402, and the inner ring of the vertically arranged first sealing bearings is fixedly fitted to the outer side of the vertical tube 403. To achieve the effect of sealing and rotating the L-shaped tube 401 and L-shaped horizontal tube 402, the conical rubber sleeve 5 is fixedly sleeved on the outside of the bottom end of the L-shaped horizontal tube 402 and connected to its interior. The left side of the L-shaped tube 401 is fixedly installed with a first brake motor 404. The output shaft of the first brake motor 404 extends into the L-shaped tube 401 and is fixedly connected to the left end of the L-shaped horizontal tube 402 with a V-shaped rod 405. A round hole is opened at the top left side of the L-shaped tube 401. Two second sealing bearings are fixedly sleeved in the round hole. The inner ring of the second sealing bearing is fixedly sleeved with the outside of the output shaft of the first brake motor 404, which achieves the effect of sealing and rotating the output shaft of the first brake motor 404. An external gear ring 406 located in the lifting box 4 is fixedly sleeved on the L-shaped tube 401. A gear 407 meshes on the left side of the external gear ring 406. A second brake motor 408 whose output shaft is fixedly connected to the top of the gear 407 is fixedly installed on the top left side of the lifting box 4.
[0038] The L-shaped pipe 401, vertical pipe 403, L-shaped horizontal pipe 402, first brake motor 404, V-shaped rod 405, external gear ring 406, gear 407, and second brake motor 408 work together to drive the conical rubber sleeve 5 to move up and down sequentially through the L-shaped pipe 401 and L-shaped horizontal pipe 402 to adjust the height. After adjusting the height, it continues to move down to jam into the inlet end of the butane or propane tank that needs to be unloaded. Connect the pipe joint at one end of the explosion-proof hose 6 to the outlet end of the butane or propane conveying equipment of the external unloading conveying vehicle, and the unloading and conveying work can be carried out. The unloaded butane or propane is unloaded into the butane or propane tank sequentially through the explosion-proof hose 6, vertical pipe 403, L-shaped pipe 401, L-shaped horizontal pipe 402, and conical rubber sleeve 5. Inside the tank, butane or propane is loaded and unloaded. Before insertion, when the inlet end of the butane or propane tank is facing the side, the first brake motor 404 can be activated to drive the L-shaped horizontal tube 402 to rotate via the V-shaped rod 405. The L-shaped horizontal tube 402 drives the conical rubber sleeve 5 to rotate to face forward or backward. When the second brake motor 408 is activated to drive the gear 407 to rotate, the gear 407 drives the L-shaped tube 401 to rotate horizontally via the external gear ring 406. The L-shaped tube 401 drives the conical rubber sleeve 5 to rotate to the rear or front side via the L-shaped horizontal tube 402. When rotated to the rear or front side, the conical rubber sleeve 5 changes to face left or right, which facilitates flexible adjustment of the orientation of the conical rubber sleeve 5. This makes it suitable for butane or propane tanks with inlet ends in different directions, improving docking applicability.
[0039] Furthermore, the grinding and parking assembly includes two electric telescopic rods 2 embedded and fixed to the bottom of the base plate 1. The extended ends of the two electric telescopic rods 2 are fixedly connected to the same pressure plate 201. The bottom of the pressure plate 201 is bonded and fixed with an anti-slip rubber pad with an uneven bottom structure. Four supports are fixedly installed in a rectangle on the top left side of the base plate 1. The top of the four supports is fixedly connected to the same counterweight block 101 for counterweight support. A battery is fixedly installed on the top of the counterweight block 101. The electric slide rail 301, the first brake motor 404, the second brake motor 408, and the electric telescopic rods 2 are all connected to the battery. Electrically connected, a synchronous control switch electrically connected to the battery is fixedly installed on the top front side of the counterweight 101. Both electric telescopic rods 2 are electrically connected to the synchronous control switch. The electric telescopic rods 2, pressure plate 201, and anti-slip pads are designed to work together. The four lockable casters facilitate the flexible movement of the device. When docking is required after movement, the two electric telescopic rods 2 are activated in the forward direction to drive the pressure plate 201 to move downward. The pressure plate 201 causes the anti-slip pads to press firmly against the ground for anti-slip and stable stopping, reducing the displacement phenomenon caused by the small contact area between the lockable casters and the ground during use.
[0040] The electric slide rail 301, the first brake motor 404, and the second brake motor 408 are all fixed to and electrically connected to a wireless remote control switch. The wireless remote control switch is electrically connected to the battery and is matched with an external remote control.
[0041] The usage method of this embodiment is as follows: When using the loading and unloading arm with the moving mechanism, the four lockable casters facilitate the flexible movement of the device by personnel. When it needs to be stopped at the butane or propane tank to be docked, the two electric telescopic rods 2 are activated in the forward direction to drive the pressure plate 201 to move downward. The pressure plate 201 drives the anti-slip rubber pad to squeeze tightly with the ground to perform anti-slip and stable stopping work, achieving the effect of convenient and flexible movement and anti-slip and stable stopping support. The movable design allows for easy recycling among multiple tanks on site, improving the flexibility of on-site use.
[0042] During docking, the electric slide rail 301 drives the rectangular sleeve 302 to slide up or down on the four L-shaped guide rods 303. The four L-shaped guide rods 303 guide the rectangular sleeve 302 vertically. The rectangular sleeve 302 drives the lifting box 4 to move up and down to adjust the height. The lifting box 4 drives the conical rubber sleeve 5 to move up and down to adjust the height in sequence through the L-shaped tube 401 and the L-shaped horizontal tube 402. After adjusting the height, it continues to be driven to move down to jam into the inlet end of the butane or propane tank that needs to be unloaded. The pipe joint at one end of the explosion-proof hose 6 is connected to the outlet end of the butane or propane conveying equipment of the external unloading conveying vehicle, and the unloading and conveying work can be carried out. The unloaded butane or propane is unloaded into the butane or propane tank in sequence through the explosion-proof hose 6, the vertical tube 403, the L-shaped tube 401, the L-shaped horizontal tube 402 and the conical rubber sleeve 5, realizing the loading and unloading of butane or propane.
[0043] Before insertion, when the inlet end of the butane or propane tank is facing the side, the first brake motor 404 can be activated to rotate the L-shaped horizontal tube 402 via the V-shaped rod 405. The L-shaped horizontal tube 402 rotates the conical rubber sleeve 5 to face forward or backward. When the second brake motor 408 is activated to rotate the gear 407, the gear 407 rotates the L-shaped tube 401 horizontally via the external gear ring 406. The L-shaped tube 401 rotates the conical rubber sleeve 5 to the rear or front side via the L-shaped horizontal tube 402. At this time, the conical rubber sleeve 5 changes to face left or right, which facilitates flexible adjustment of the orientation of the conical rubber sleeve 5, making it suitable for butane or propane tanks with different inlet ends and improving docking applicability. After adjustment, before stopping, personnel can directly move this device to make the conical rubber sleeve 5 tightly inserted and squeezed into the inlet end of the tank. Then, the two electric telescopic rods 2 are started in the forward direction by the synchronous control switch to drive the pressure plate 201 to move down and drive the anti-slip rubber pad to squeeze tightly with the ground for stopping. Then loading and unloading can be carried out.
[0044] 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 loading arm with a moving mechanism, comprising a base plate (1), characterized in that: include: The base plate (1) is equipped with lockable casters at all four corners of its bottom. The vertical guide lifting assembly is fixedly installed on the top of the base plate (1); The lifting box (4) is fixedly installed on the right side of the vertical guide lifting assembly; The horizontal and vertical rotary flow control assembly is installed on the lifting box (4); A conical rubber sleeve (5) is fixedly sleeved on the outer side of the end of the transverse and longitudinal rotary flow assembly; An explosion-proof hose (6) is connected and fixed at the bottom of the horizontal and vertical rotary flow assembly, and one end of the explosion-proof hose (6) is connected and fixed with a pipe joint. The grinding and parking component is fixedly installed at the bottom of the base plate (1).
2. A loading arm with a moving mechanism according to claim 1, characterized in that: The vertical guide lifting assembly includes a U-shaped support plate (3) fixedly connected to the top of the base plate (1). An electric slide rail (301) is fixedly installed on the top of the U-shaped support plate (3). Two L-shaped guide rods (303) are fixedly connected between the two sides of the electric slide rail (301) and the top of the U-shaped support plate (3). The same rectangular sleeve (302) is slidably sleeved on the four L-shaped guide rods (303). The right side of the moving end of the electric slide rail (301) is fixedly connected to the right inner wall of the rectangular sleeve (302). The right side of the rectangular sleeve (302) is fixedly connected to the left side of the lifting box (4). The explosion-proof hose (6) passes through the inner side of the U-shaped support plate (3) and is fixedly connected to the top inner wall of the U-shaped support plate (3).
3. A loading arm with a moving mechanism according to claim 2, characterized in that: The horizontal and vertical rotary flow control assembly includes an L-shaped tube (401) rotatably mounted on the top of the lifting box (4). A vertical tube (403) fixed to the bottom of the lifting box (4) is rotatably and sealed inside the L-shaped tube (401). The bottom end of the vertical tube (403) is connected and fixed to the top end of the explosion-proof hose (6). An L-shaped horizontal tube (402) is rotatably and sealed inside the L-shaped tube (401). A conical rubber sleeve (5) is fixedly mounted on the outside of the bottom end of the L-shaped horizontal tube (402) and connected to its interior. The left side of the L-shaped tube (401) is fixed... A first brake motor (404) is fixedly installed. The output shaft of the first brake motor (404) extends into the L-shaped tube (401) and is fixedly connected to the left end of the L-shaped horizontal tube (402) with a V-shaped rod (405). An external gear ring (406) located in the lifting box (4) is fixedly sleeved on the L-shaped tube (401). A gear (407) meshes with the left side of the external gear ring (406). A second brake motor (408) whose output shaft is fixedly connected to the top of the gear (407) is fixedly installed on the top left side of the lifting box (4).
4. A loading arm with a moving mechanism according to claim 3, characterized in that: The grinding and parking assembly includes two electric telescopic rods (2) embedded and fixed at the bottom of the base plate (1). The extended ends of the two electric telescopic rods (2) are fixedly connected to the same pressure plate (201). The bottom of the pressure plate (201) is bonded and fixed with an anti-slip pad with an uneven bottom structure.
5. A loading arm with a moving mechanism according to claim 4, characterized in that: The top left side of the base plate (1) is fixedly equipped with four supports in a rectangular shape. The top of the four supports is fixedly connected to the same counterweight block (101) for counterweight support. The top of the counterweight block (101) is fixedly equipped with a storage battery. The electric slide rail (301), the first brake motor (404), the second brake motor (408) and the electric telescopic rod (2) are all electrically connected to the storage battery.
6. A loading arm with a moving mechanism according to claim 5, characterized in that: The counterweight (101) is fixedly installed with a synchronous control switch that is electrically connected to the battery on the top front side, and both electric telescopic rods (2) are electrically connected to the synchronous control switch.
7. A loading arm with a moving mechanism according to claim 3, characterized in that: The L-shaped tube (401) is fitted with three vertically arranged first sealing bearings and three horizontally arranged first sealing bearings. The inner ring of the horizontally arranged first sealing bearing is fixedly fitted with the outer side of the L-shaped horizontal tube (402), and the inner ring of the vertically arranged first sealing bearing is fixedly fitted with the outer side of the vertical tube (403).