Pneumatic control module for hydrogenation loading and unloading vehicle arm

Abstract

The invention relates to the technical field of fluid pressure execution, in particular to a pneumatic control module for a hydrogenation loading and unloading vehicle arm, which comprises a stand column, a first inlet pipe and a second inlet pipe are welded and fixed at the upper and lower ends of the side wall of the stand column in a staggered manner, and inner arms are movably assembled on the first inlet pipe and the second inlet pipe; an outer arm is movably assembled on the inner arm through a first connecting pipe. According to the pneumatic type control module for the hydrogenation loading and unloading vehicle arm, by adopting the two-side staggered layout design, the pneumatic type control module can be vertically stored on the two sides of the stand column in idle time, and the external space occupation of the pneumatic type control module is greatly reduced; the angles of the inner arm, the outer arm and the vertical pipe are driven through the pressure in the loading and unloading vehicle arm, extra external power is not needed, the operation cost is lower, and operation is more convenient; the inner arm adopts internal pressure to control supporting rod driving, the outer arm and the vertical pipe adopt internal pressure to control rotation driving, the stability of the whole vehicle arm can be guaranteed, and the external control range is widened.

Description

Technical Field

[0001] The invention relates to the technical field of fluid pressure execution, in particular to a pneumatic control module for a hydrogenation loading and unloading vehicle arm. Background Art

[0002] When loading and unloading liquid hydrogen, a vacuum hose is used to connect the vehicle, which has the following defects: the crane pipe of the existing loading and unloading vehicle will occupy a large amount of horizontal space when idle, resulting in the crane pipe being exposed to the outside, and the control of the crane pipe still requires external power to drive, which is very inconvenient to operate, and the internal pressure cannot be effectively utilized. At the same time, the operating range is also very limited. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing hydrogenation loading and unloading cranes occupy a large space when not in use, are inconvenient to store, require external power for rotation control, have high operating costs, and have a very limited operating range.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a pneumatic control module for a hydrogenation loading and unloading vehicle arm, comprising a column, a first inlet pipe and a second inlet pipe are staggeredly welded and fixed to the upper and lower ends of the side wall of the column, an inner arm is movably mounted on the first inlet pipe and the second inlet pipe, the inner arm is movably mounted on the outer arm through a first connecting pipe, the outer arm is movably mounted on a vertical pipe through a second connecting pipe, an embedded flip strut for controlling the flipping of the inner arm is movably mounted on the side wall of the column, and a fluid control unit is mounted on the outer sides of the first connecting pipe and the second connecting pipe.

[0005] The outer side of the column is provided with an embedded turning groove on the side wall of the first inlet pipe and the second inlet pipe.

[0006] The embedded flip support rod comprises an embedded guide cover fixedly mounted on the side wall of the embedded flip groove, a support rod body movably mounted inside the embedded flip groove through an axis, and an embedded control valve mounted on the end of the embedded guide cover.

[0007] An inner arm connecting bracket for movably connecting the extended end of the support rod body is welded and fixed on the inner arm side wall.

[0008] The fluid control unit includes a fixed external cover shell fixedly installed on the outside of the first connecting pipe and the second connecting pipe, a movable internal cover shell fixedly installed on the outside of the outer arm and the vertical pipe, an internal adjustment blade fixedly installed on the surface of the movable internal cover shell, a first guide pipe and a second guide pipe fixedly installed on the outer side surface of the fixed external cover shell, and a third guide pipe fixed on the outer wall of the movable internal cover shell.

[0009] The first flow guide pipe and the second flow guide pipe are internally fixedly equipped with an electrically controlled one-way check valve.

[0010] A plurality of lateral guide tubes with manual valves installed inside are welded and fixed on the outer side surface of the outer arm.

[0011] A hollow interlayer for external gas purging is arranged on the inner wall of the fixed external cover.

[0012] A lateral stabilizing cylinder is mounted on the outer side of the outer arm via a bracket, and an arc-shaped limiting bracket matching with the lateral stabilizing cylinder is provided on the outer side of the fixed outer cover.

[0013] An end electric control valve is axially fixed to the cylinder end of the lateral stabilizing cylinder, and the extended end of the lateral stabilizing cylinder is movably connected to the arc-shaped limiting bracket shaft.

[0014] The beneficial effects of the present invention are: (1) The pneumatic control module for the hydrogenation loading and unloading vehicle arm of the present invention adopts a staggered layout design on both sides, so that it can be vertically stored on both sides of the column when not in use, greatly reducing its external space occupation; (2) The pressure inside the loading and unloading arm is used to drive the angles of the inner arm, outer arm and vertical pipe respectively. No additional external power is required, the operating cost is lower and the operation is more convenient. (3) The inner arm uses internal pressure to control the strut drive, while the outer arm and drop tube use internal pressure to control the rotation drive, which can ensure the stability of the entire vehicle arm and improve the external control range; (4) The embedded flip support rod is set inside the embedded flip groove on the outside of the column, which greatly improves the fit of the external loading and unloading arm; (5) The fluid control unit can quickly control the angle switching adjustment, making the angle adjustment faster; (6) The internal fluid used to control the fluid control unit will be discharged into the subsequent tube body after the driving is completed, which greatly reduces the driving loss and saves the driving cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a partial structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the local structure of the connecting end of the outer arm in the present invention.

[0019] Figure 4 It is a schematic diagram of the internal structure of the fluid control unit in the present invention.

[0020] Figure 5It is a structural schematic diagram of the position of the embedded flip support rod in the present invention. DETAILED DESCRIPTION

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A pneumatic control module for a hydrogenation loading and unloading vehicle arm is shown, comprising a column 1, a first inlet pipe 2 and a second inlet pipe 3 are staggeredly welded and fixed to the upper and lower ends of the side wall of the column 1, an inner arm 4 is movably mounted on the first inlet pipe 2 and the second inlet pipe 3, the inner arm 4 is movably mounted on the outer arm 6 through a first connecting pipe 5, the outer arm 6 is movably mounted on the vertical pipe 8 through a second connecting pipe 7, an embedded flip strut 9 for controlling the flipping of the inner arm 4 is movably mounted on the side wall of the column 1, and a fluid control unit 10 is mounted on the outer sides of the first connecting pipe 5 and the second connecting pipe 7.

[0024] Working principle: connect the inlet pipe to the first inlet pipe 2 or the second inlet pipe 3 to communicate with the inner arm 4, and introduce the internal pressure of the first inlet pipe 2 or the second inlet pipe 3 into the embedded flip strut 9 to drive the embedded flip strut 9, and use the embedded flip strut 9 to control the inner arm 4 to flip outward. At the same time, after the fluid is introduced into the inner arm 4, the fluid will be introduced into the first connecting pipe 5 along the inner arm 4, and the angle of the outer arm 6 will be driven by the fluid control unit 10 on the outside of the first connecting pipe 5. At the same time, after the fluid is introduced into the outer arm 6 along the first connecting pipe 5, it is introduced into the second connecting pipe 7 and then drives the vertical pipe 8 for adjustment. A main control valve is also installed on the outer arm 6, which can adjust the flow rate inside the outer arm 6 to improve safety.

[0025] In order to cooperate with the lateral reverse adjustment, an embedded turning groove 11 is opened on the side wall of the first inlet pipe 2 and the second inlet pipe 3 on the outside of the column 1.

[0026] In order to rationally utilize the lateral space and reduce the gap between the inner wall 4 and the column 1 when stored, the embedded flip strut 9 includes an embedded air guide cover 91 fixedly installed on the side wall of the embedded flip groove 11, a strut body 92 installed inside the embedded flip groove 11 through an axial movement, and an embedded control valve 93 installed at the end of the embedded air guide cover 91.

[0027] The function of the embedded control valve 93 is to control the extension and extension limit of the support rod body 92 by electronically opening and closing, and to control the reset of the support rod body 92 by manually squeezing the inner arm 4 when idle.

[0028] In order to cooperate with the connection control, an inner arm connection bracket 94 for movably connecting the protruding end of the support rod body 92 is welded and fixed on the side wall of the inner arm 4.

[0029] In order to cooperate with the rotation control, the fluid control unit 10 includes a fixed external cover 101 fixedly installed on the outside of the first connecting tube 5 and the second connecting tube 7, a movable internal cover 102 fixedly installed on the outside of the outer arm 6 and the vertical tube 8, an internal adjustment blade 103 fixedly installed on the surface of the movable internal cover 102, a first guide tube 104 and a second guide tube 105 fixedly installed on the outer surface of the fixed external cover 101, and a third guide tube 106 fixed on the outer wall of the movable internal cover 102.

[0030] The fluid is introduced through the first flow conduit 104 or the second flow conduit 105, and then introduced into the fixed external cover 101, driving the internal adjustment blades 103 located in the fixed external cover 101, and the internal adjustment blades 103 are used to drive the movable internal cover 102, the outer arm 6 and the vertical pipe 8 to rotate. Because the diameters of the first flow conduit 104 and the second flow conduit 105 are relatively small, the internal pressure is taken into consideration at the beginning of the design. The internal pressure is limited to avoid excessive pressure impacting the internal adjustment blades 103, so that the pressure is always set within a reasonable range, so that the internal adjustment blades 103 can be adjusted evenly and slowly in angle, and the pressure adjustment method is to set the diameters of the first flow conduit 104 and the second flow conduit 105 and their maximum output flow rate per unit time.

[0031] In order to avoid internal turbulence and improve the internal flow guiding effect, the first flow guiding pipe 104 and the second flow guiding pipe 105 are fixedly equipped with an electrically controlled one-way check valve 107 .

[0032] The electrically controlled one-way check valve 107 can also cooperate with the first flow guide tube 104 and the second flow guide tube 105 to adjust the maximum internal output pressure to avoid excessive introduction pressure.

[0033] In order to cooperate with external control, a plurality of lateral guide tubes 13 with manual valves 12 installed inside are welded and fixed on the outer side surface of the outer arm 6.

[0034] In order to prevent ice from affecting the rotation effect, a hollow interlayer 14 for external gas purging is provided on the inner wall of the fixed outer cover 101.

[0035] By conveying room temperature air into the hollow interlayer 14, the temperature inside the fixed external cover 101 can be guaranteed, thereby avoiding external icing caused by internal low temperature, which affects the regulation efficiency. At the same time, the interlayer design can also avoid affecting the internal fluid conveyance.

[0036] In order to lock the adjusted angle and improve the structural strength after adjustment, a lateral stabilizing cylinder 15 is installed on the outer side of the outer arm 6 through a bracket, and an arc-shaped limiting bracket 16 matching the lateral stabilizing cylinder is provided on the outer side of the fixed outer cover 101.

[0037] When the fluid control unit 10 controls the outer arm 6 to perform angle control, the stability of the outer arm 6 flipping can be improved, and the adjusted angle of the outer arm can be locked to ensure the stability of loading and unloading.

[0038] The lateral stabilizing cylinder 15 can also effectively reduce the adjustment speed of the fluid control unit 10 and improve safety.

[0039] In order to cooperate with the electric control, an end electric control valve 17 is axially fixed to the cylinder end of the lateral stabilizing cylinder 15 , and the extended end of the lateral stabilizing cylinder 15 is axially movably connected to the arc-shaped limiting bracket 16 .

[0040] The end electric control valve 17 is used to control the opening and closing states of the end inlet and initial port of the lateral stabilization cylinder 15. After the end electric control valve 17 is opened, the lateral stabilization cylinder 15 can be telescopically adjusted along with the fluid control unit 10; and then after the end electric control valve 17 is closed, the lateral stabilization cylinder 15 will be locked, and the angle of the fluid control unit 10 will be locked.

[0041] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pneumatic control module for a hydrogenation loading and unloading vehicle arm, comprising a column (1), characterized in that: A first inlet pipe (2) and a second inlet pipe (3) are staggeredly welded and fixed to the upper and lower ends of the side wall of the column (1); an inner arm (4) is movably mounted on the first inlet pipe (2) and the second inlet pipe (3); the inner arm is movably mounted on an outer arm (6) via a first connecting pipe (5); the outer arm (6) is movably mounted on a vertical pipe (8) via a second connecting pipe (7); an embedded flip support rod (9) for controlling the flipping of the inner arm (4) is movably mounted on the side wall of the column (1); and a fluid control unit (10) is mounted on the outer sides of the first connecting pipe (5) and the second connecting pipe (7).

2. A pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 1, characterized in that: An embedded turning groove (11) is provided on the side walls of the first inlet pipe (2) and the second inlet pipe (3) on the outside of the column (1).

3. A pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 2, characterized in that: The embedded flip support rod (9) comprises an embedded flow guide cover (91) fixedly mounted on the side wall of the embedded flip groove (11), a support rod body (92) movably mounted inside the embedded flip groove (11) via an axis, and an embedded control valve (93) mounted on the end of the embedded flow guide cover (91).

4. A pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 3, characterized in that: An inner arm connecting bracket for movably connecting the extended end of the support rod (92) body is welded and fixed on the side wall of the inner arm (4).

5. The pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 1, characterized in that: The fluid control unit (10) comprises a fixed external cover (101) fixedly mounted on the outside of a first connecting tube (5) and a second connecting tube (7), a movable internal cover (102) fixedly mounted on the outside of an outer arm (6) and a vertical tube (8), an internal regulating blade (103) fixedly mounted on the surface of the movable internal cover (102), a first flow guide tube (104) and a second flow guide tube (105) fixedly mounted on the outer surface of the fixed external cover (101), and a third flow guide tube (106) fixed on the outer wall of the movable internal cover (102).

6. A pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 5, characterized in that: The first flow guide tube (104) and the second flow guide tube (105) are internally fixedly provided with an electrically controlled one-way check valve (107).

7. The pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 1, characterized in that: A plurality of lateral guide tubes (13) with manual valves (12) installed inside are welded and fixed on the outer side surface of the outer arm (6).

8. The pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 5, characterized in that: The inner wall of the fixed external cover (101) is provided with a hollow interlayer for external gas purging.

9. The pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 5, characterized in that: A lateral stabilizing cylinder (15) is mounted on the outer side of the outer arm (6) via a bracket, and an arc-shaped limiting bracket (16) matching the lateral stabilizing cylinder (15) is provided on the outer side of the fixed outer cover (101).

10. A pneumatic control module for a hydrogenation loading and unloading vehicle arm according to claim 9, characterized in that: An end electric control valve (17) is axially fixed to the cylinder end of the lateral stabilizing cylinder (15), and the extended end of the lateral stabilizing cylinder (15) is axially connected to the arc-shaped limiting bracket (16).

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