Fully automatic gas filling anti-misinstallation fixture

Abstract

The fully automatic gas filling anti-misinstallation fixture includes a fixed part and two mirror-symmetrically arranged moving parts, the fixed part includes a fixed seat, the left and right ends of the fixed seat are connected to the cylinder seat, and the two moving parts are respectively located on the left and right sides of the fixed seat; the moving part includes a connecting plate, the lower end of the connecting plate is fixedly connected to the cylinder, the middle part of the connecting plate is provided with a through hole, the piston rod of the cylinder passes through the through hole and extends to the top of it; when the threaded petal is in close contact with the thread on the bottle valve, the threaded petal can no longer move toward the center, and a reaction force will be generated and fed back to the cylinder. At this time, the cylinder body cannot move, and the piston rod will be forced to move. The force of the piston rod is transmitted to the first connecting rod, and through the first connecting shaft, using the lever principle, the other end of the first connecting rod will generate a large force, which will be transmitted to the nipple plug, and the nipple plug will move downward, so that it is in close contact with the bottle valve to achieve sealing.

Description

Technical Field

[0001] The invention relates to the technical field of gas cylinder filling, and more particularly to a full-automatic gas filling mis-installation prevention fixture. Background Art

[0002] In the automatic filling system of gas cylinders, how to achieve the quick connection between the filling fixture and the cylinder valve, and have the function of preventing wrong installation? In the existing market, there is no fully automatic pneumatic filling fixture. In the future unmanned filling, fully automatic filling fixtures are an indispensable central link. Summary of the Invention

[0003] In order to solve the above problems and overcome the shortcomings of the prior art, the present invention provides a fully automatic gas filling anti-misinstallation fixture, which includes a fixed part and two mirror-symmetrically arranged movable parts. The fixed part includes a fixed seat, and the left and right ends of the fixed seat are connected to the cylinder seat. The two movable parts are respectively located on the left and right sides of the fixed seat.

[0004] The moving part includes a connecting plate, the lower end of which is fixedly connected to the cylinder, and a through hole is provided in the middle of the connecting plate, through which the piston rod of the cylinder passes and extends to the upper part;

[0005] A through hole is also provided in the middle of the cylinder seat, through which the piston rod of the cylinder passes and extends to the top thereof, the upper end of the piston rod is hingedly connected to a linkage seat, the inner side of which is hingedly connected to a first connecting rod, the other end of the first connecting rod is hingedly connected to a spherical sealing seat, and the portion of the first connecting rod near the spherical sealing seat is hingedly connected to the fixed seat;

[0006] The upper end of the connecting plate is hinged with a second connecting rod, the second connecting rod is hinged with a second connecting shaft, and the third connecting rod and the fourth connecting rod are hinged on the second connecting shaft. The other end of the fourth connecting rod is hinged with the fixed seat and cannot be moved. The other end of the third connecting rod is hinged with a threaded flap. The lower end of the fixed seat is provided with a guide groove, and the threaded flap is movably connected to the guide groove.

[0007] Furthermore, it also includes a spherical sealing plug. A mounting hole is provided in the middle of the spherical sealing seat, and the spherical sealing plug is detachably arranged in the mounting hole.

[0008] Furthermore, a third connecting shaft is provided between the connecting plate and the second connecting rod, and the connecting plate and the second connecting rod are hinged through the third connecting shaft.

[0009] Furthermore, the upper end of the second connecting rod is higher than the horizontal height of the first connecting rod.

[0010] Furthermore, a notch is provided at the upper end of the fixing seat, the spherical sealing seat is located inside the notch, a through hole is provided in the middle of the fixing seat, and the spherical sealing plug passes through the through hole of the fixing seat and extends to the bottom thereof.

[0011] Furthermore, the lower ends of the third connecting rod and the fourth connecting rod are respectively located on both sides of the second connecting rod.

[0012] Furthermore, it also includes a first connecting shaft, the first connecting rod is hinged to the fixed seat through the first connecting shaft, the first connecting shaft is a two-section structure including section A and section B divided from the first connecting shaft, the other end of section A is hinged to the linkage seat, and the other end of section B is hinged to the spherical sealing seat.

[0013] Furthermore, in the initial position, the horizontal height of the linkage seat is lower than the horizontal height of the first coupling shaft, and section B is in a horizontal position.

[0014] Furthermore, there are two thread petals in total, and the two thread petals are in mirror-symmetrical positions.

[0015] Furthermore, the spherical sealing plug is located between the two threaded petals.

[0016] The beneficial effects of the present invention are:

[0017] The fully automatic gas filling anti-misinstallation fixture provided by the present invention has a function of generating a reaction force when the threaded flap is in close contact with the thread on the bottle valve and can no longer move toward the center, and the reaction force is fed back to the cylinder. At this time, the cylinder body cannot move, and the piston rod is forced to move. The force of the piston rod is transmitted to the first connecting rod. Through the first connecting shaft, the other end of the first connecting rod generates a large force by applying the lever principle. This force is transmitted to the spherical sealing plug, and the spherical sealing plug moves downward, so that it is in close contact with the bottle valve to achieve sealing. The bottle mouth fixture is conveniently and quickly connected automatically, and high-pressure filling without leakage and automatic connection are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0020] In the accompanying drawings: 1. Spherical sealing plug, 2. Fixed seat, 3. Threaded petal, 4. Third connecting shaft, 5. Connecting plate, 6. Cylinder body, 7. Mounting seat, 8. Cylinder seat, 9. Linkage seat, 10. Fourth connecting rod, 11. Second connecting rod, 12. Second connecting shaft, 13. First connecting rod, 14. Spherical sealing seat, 15. First connecting shaft, 16. Third connecting rod, 17. Fixed arm. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following will be combined with the appended claims of the present invention. Figure 1 ~Attached Figure 2 , the present invention is described in more detail.

[0022] The fully automatic gas filling anti-misinstallation fixture provided by the present invention includes a fixed part and two mirror-symmetrically arranged movable parts, the fixed part includes a fixed seat 2, the left and right ends of the fixed seat 2 are connected to the cylinder seat 8, and the two movable parts are respectively located on the left and right sides of the fixed seat 2; the movable part includes a connecting plate 5, the lower end of the connecting plate 5 is fixedly connected to the cylinder, the middle part of the connecting plate 5 is provided with a through hole, the piston rod of the cylinder passes through the through hole and extends above it; the middle part of the cylinder seat 8 is also provided with a through hole, the piston rod of the cylinder passes through the through hole and extends above it, and the upper end of the piston rod is hinged with a linkage seat 9 , the inner side of the linkage seat 9 is hinged with a first connecting rod 13, the other end of the first connecting rod 13 is hinged with a spherical sealing seat 14, and the part of the first connecting rod 13 close to the spherical sealing seat 14 is hinged to the fixed seat 2; the upper end of the connecting plate 5 is hinged with a second connecting rod 11, the second connecting rod 11 is hinged with a second connecting shaft 12, and the second connecting shaft 12 is also hinged with a third connecting rod 16 and a fourth connecting rod 10, the other end of the fourth connecting rod 10 is hinged with the fixed seat 2 and cannot be moved, the other end of the third connecting rod 16 is hinged with a threaded flap 3, and the lower end of the fixed seat 2 is provided with a guide groove, and the threaded flap 3 is movable It is connected to the guide groove; it also includes a spherical sealing plug 1, a mounting hole is provided in the middle of the spherical sealing seat 14, and the spherical sealing plug 1 is detachably arranged in the mounting hole; a third connecting shaft 4 is provided between the connecting plate 5 and the second connecting rod 11, and is hinged through the third connecting shaft 4; the upper end of the second connecting rod 11 is higher than the horizontal height of the first connecting rod 13; a notch is provided at the upper end of the fixing seat 2, the spherical sealing seat 14 is located inside the notch, and a through hole is provided in the middle of the fixing seat 2, the spherical sealing plug 1 passes through the through hole of the fixing seat 2 and extends below it; the lower ends of the third connecting rod 16 and the fourth connecting rod 10 are connected to the guide groove; the spherical sealing plug 1 is provided with a spherical sealing plug 1, and the spherical sealing plug 1 passes through the through hole of the fixing seat 2 and extends to the bottom thereof; the lower ends of the third connecting rod 16 and the fourth connecting rod 10 are connected to the guide groove; the spherical sealing plug 1 is provided with a spherical sealing plug 1 The ends are respectively located on both sides of the second connecting rod 11; it also includes a first connecting shaft 15, the first connecting rod 13 is hinged to the fixed seat 2 through the first connecting shaft 15, and the first connecting shaft 15 is a two-section structure including section A and section B divided from the first connecting shaft 15, the other end of section A is hinged to the linkage seat 9, and the other end of section B is hinged to the spherical sealing seat 14; in the initial position, the horizontal height of the linkage seat 9 is lower than the horizontal height of the first connecting shaft 15, and section B is in a horizontal position; there are two thread petals 3 in total, and the two thread petals 3 are in mirror-symmetrical positions; the spherical sealing plug 1 is located between the two thread petals 3.

[0023] The embodiments of the present invention are as follows:

[0024] The fully automatic gas filling anti-misinstallation fixture includes a fixed part and two mirror-symmetrically arranged moving parts. The fixed part includes a fixed seat 2. The left and right ends of the fixed seat 2 are connected to a cylinder seat 8. The cylinder includes two parts. One part is a rectangular block structure with a through hole running through the middle, and the other part is two plate structures fixedly connected to the rectangular block structure. The cylinder seat 8 is hinged to the two ends of the fixed seat 2 through the plate structure. There is space between the two plate structures to accommodate the second connecting rod 11, the third connecting rod 16, the fourth connecting rod 10 and the threaded petal 3.

[0025] The two moving parts are respectively located on the left and right sides of the fixed seat 2. The various structures in the moving seat are driven by the cylinder to link together, thereby installing the spherical sealing plug 1 on the bottle valve;

[0026] The moving part includes a connecting plate 5, which is an L-shaped structure with one end bent upward. The upward bent end is hinged to the second connecting rod 11 through the third connecting shaft 4. The second connecting rod 11 passes through the space inside the cylinder seat 8 and extends upward to the top of the first connecting rod 13. The second connecting rod 11 is hinged with the second connecting shaft 12. The second connecting shaft 12 is arranged horizontally. There are two second connecting rods 11, which are respectively hinged to the two ends of the second connecting shaft 12. The middle section of the second connecting shaft 12 is also hinged with the third connecting rod 16 and the fourth connecting rod 10. A fixed arm 17 is provided on the side of the fixed seat 2. The fixed arm 17 is a long rod-shaped structure extending toward the linkage seat 9. The fourth connecting rod The other end of the rod 10 is hinged to the fixed arm 17 and cannot move. The fourth link 10 is inclined toward the linkage seat 9. The other end of the third link 16 is hinged with a threaded flap 3. The third link 16 is inclined toward the fixed seat 2. The lower end of the fixed seat 2 is provided with a guide groove. The threaded flap 3 is connected to the guide groove in a movable manner. The threaded flap 3 can move laterally on the guide groove. When the second link 11 drives the third link 16 and the upper end of the fourth link 10 to move downward through the second connecting shaft 12, since the other end of the fourth link 10 is fixedly hinged, the lower end of the third link 16 will move laterally inward, thereby pushing the threaded flap 3 to move.

[0027] The two thread petals 3 move inwards until they clamp the bottle valve, at which point the thread petals 3 can no longer move, thereby generating a reaction force, and the force is transferred from the direction with the smallest reaction force.

[0028] At the beginning of work, the reaction force of the spherical sealing plug 1 installed toward the inside of the bottle valve is greater, so the force generated by the cylinder ventilation will be transferred to the threaded petal 3, causing it to move laterally.

[0029] When the threaded flap 3 can no longer move, the position of force action will be transferred to the piston rod and the linkage seat 9.

[0030] The lower end of the connecting plate 5 is fixedly connected to the cylinder, and a through hole is provided in the middle of the connecting plate 5, through which the piston rod of the cylinder passes and extends above it; a through hole is also provided in the middle of the cylinder seat 8, through which the piston rod of the cylinder passes and extends above it, and the upper end of the piston rod is hinged to the linkage seat 9, and the inner side of the linkage seat 9 is hinged to the first connecting rod 13, and the other end of the first connecting rod 13 is hinged to the spherical sealing seat 14, and the part of the first connecting rod 13 near the spherical sealing seat 14 is hinged to the fixed seat 2;

[0031] It also includes a spherical sealing plug 1. A mounting hole is provided in the middle of the spherical sealing seat 14, and the spherical sealing plug 1 is detachably arranged in the mounting hole.

[0032] It also includes a first connecting shaft 15, and the first connecting rod 13 is hinged to the fixed seat 2 through the first connecting shaft 15. The first connecting shaft 15 is a two-section structure including section A and section B divided from the first connecting shaft 15. The other end of section A is hinged to the linkage seat 9, and the other end of section B is hinged to the spherical sealing seat 14.

[0033] When the force is transferred to the piston rod and the linkage seat 9, since the threaded petal 3 cannot move, it means that the third connecting rod 16 and the fourth connecting rod 10 cannot move further, which also causes the second connecting rod 11 to be unable to move further downward.

[0034] At this time, the air in the cylinder continues to be ventilated. Since the cylinder body 6 cannot move further, the piston rod moves upward, and the linkage seat 9 also moves upward. At this time, the first connecting shaft 15 is a lever shaft. When section A moves upward, according to the lever principle, the other end of section B will move downward.

[0035] And because the length of section A is greater than that of section B, according to the principle of lever, the force moving downward is increased, thereby causing the spherical sealing plug 1 to close the bottle valve.

[0036] In the initial position, the level of the linkage seat 9 is lower than that of the first connecting shaft 15, and the section B is in a horizontal position, so that the first connecting rod 13 can generate a sufficiently large torque by moving a small distance.

[0037] The mounting seat 7 is located outside the cylinder seat 8 and the cylinder body 6 .

[0038] This set of clamps omits the traditional structure of tightening the nut to seal the spherical sealing plug 1 with the bottle valve. When the cylinder is ventilated, the cylinder body 6 and the piston rod will tend to move in opposite directions. Due to the structural connection, when the first connecting rod 13 moves upward, the spherical sealing plug 1 and the bottle valve are sealed. This process requires a lot of force. At this time, the force on the second connecting rod 11 is not sufficient, so the upper end of the piston rod cannot move, causing the cylinder body 6 to move downward.

[0039] The cylinder body 6 drives the second connecting rod 11 through the third connecting shaft 4 to move downward. The second connecting rod 11 then transmits the force to the third connecting rod 16 and the fourth connecting rod 10 through the second connecting shaft 12. The fourth connecting rod 10 is connected to the threaded flap 3. The other end of the fourth connecting rod 10 is hinged and fixed to the fixed arm 17. Since the other end of the fourth connecting rod 10 is fixedly hinged, the lower end of the third connecting rod 16 will move laterally inward, thereby pushing the threaded flap 3 to move.

[0040] The thread flap 3 will move toward the center through the guide groove. When the thread flap 3 is in close contact with the thread on the bottle valve, the thread flap 3 can no longer move toward the center, which means that the third connecting rod 16 and the fourth connecting rod 10 can no longer move, which also causes the second connecting rod 11 to be unable to continue to move downward, and feedback is given to the cylinder. At this time, the cylinder body 6 cannot move, and the piston rod will be forced to move. The force of the piston rod is transmitted to the first connecting rod 13 through the linkage seat 9. By applying the lever principle through the first connecting shaft 15, a large force will be generated at the other end of the first connecting rod 13. This force is transmitted to the spherical sealing plug 1, and the spherical sealing plug 1 will move downward, making it in close contact with the bottle valve to achieve sealing.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Fully automatic gas filling anti-misinstallation fixture, characterized by: It includes a fixed part and two mirror-symmetrical movable parts, the fixed part includes a fixed seat, the left and right ends of the fixed seat are connected to the cylinder seat, and the two movable parts are respectively located on the left and right sides of the fixed seat; The moving part includes a connecting plate, the lower end of which is fixedly connected to a cylinder, a through hole is provided in the middle of the connecting plate, and a piston rod of the cylinder passes through the through hole and extends above the through hole; A through hole is also provided in the middle of the cylinder seat, through which the piston rod of the cylinder passes and extends to the top thereof, the upper end of the piston rod is hingedly connected to a linkage seat, the inner side of the linkage seat is hingedly connected to a first connecting rod, the other end of the first connecting rod is hingedly connected to a spherical sealing seat, and the portion of the first connecting rod close to the spherical sealing seat is hingedly connected to a fixed seat; The upper end of the connecting plate is hinged with a second connecting rod, the second connecting rod is hinged with a second connecting shaft, and the third connecting rod and the fourth connecting rod are hinged on the second connecting shaft. The other end of the fourth connecting rod is hinged with a fixed seat and cannot be moved. The other end of the third connecting rod is hinged with a threaded flap, and the lower end of the fixed seat is provided with a guide groove, and the threaded flap is movably connected to the guide groove.

2. The fully automatic gas filling anti-misinstallation fixture according to claim 1 is characterized in that: It also includes a spherical sealing plug. A mounting hole is provided in the middle of the spherical sealing seat, and the spherical sealing plug is detachably arranged in the mounting hole.

3. The fully automatic gas filling anti-misinstallation fixture according to claim 1 is characterized in that: A third connecting shaft is provided between the connecting plate and the second connecting rod, and the connecting plate and the second connecting rod are hinged through the third connecting shaft.

4. The fully automatic gas filling anti-misinstallation fixture according to claim 3 is characterized in that: The upper end of the second connecting rod is higher than the horizontal height of the first connecting rod.

5. The fully automatic gas filling anti-misinstallation fixture according to claim 2, characterized in that: The upper end of the fixing seat is provided with a notch, the spherical sealing seat is located inside the notch, the middle portion of the fixing seat is provided with a through hole, and the spherical sealing plug passes through the through hole of the fixing seat and extends to the bottom thereof.

6. The fully automatic gas filling anti-misinstallation fixture according to claim 1 is characterized in that: The lower ends of the third connecting rod and the fourth connecting rod are respectively located on both sides of the second connecting rod.

7. The fully automatic gas filling anti-misinstallation fixture according to claim 1, characterized in that: It also includes a first connecting shaft, the first connecting rod is hinged to the fixed seat through the first connecting shaft, the first connecting shaft is a two-section structure including section A and section B divided from the first connecting shaft, the other end of section A is hinged to the linkage seat, and the other end of section B is hinged to the spherical sealing seat.

8. The fully automatic gas filling anti-misinstallation fixture according to claim 7, characterized in that: In the initial position, the horizontal height of the linkage seat is lower than the horizontal height of the first connecting shaft, and the B section is in a horizontal position.

9. The fully automatic gas filling anti-misinstallation fixture according to claim 2, characterized in that: There are two thread petals in total, and the two thread petals are in mirror-symmetrical positions.

10. The fully automatic gas filling anti-misinstallation fixture according to claim 9, characterized in that: The spherical sealing plug is located between the two threaded petals.

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