Quick connection anti-drop lock structure for cylinder filling

Abstract

The utility model relates to cylinder filling technical field, concretely is cylinder filling quick -witted connection anti -drop lock structure, including filling mechanism, cylinder inlet valve is placed in the inside of filling mechanism, is fixedly installed with connecting mechanism on the lateral wall of filling mechanism, the connecting mechanism includes fixed mechanism, the clamping mechanism of inserting in the left end of fixed mechanism and the plug -in mechanism of inserting in the upside of clamping mechanism. The utility model discloses through connecting mechanism, cylinder is positioned to assist, ensures that cylinder can be placed to can be clamped and fixed by filling mechanism place, improves cylinder installation efficiency, ensures that cylinder can be completely fixed after filling mechanism starts, prevents the damage of cylinder due to cylinder placement position error and leads to the damage of cylinder after the extrusion position of cylinder extension is not right.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder filling technology, specifically to a quick-connect anti-detachment locking structure for gas cylinder filling. Background Technology

[0002] A gas cylinder is a portable pressure vessel that can be refilled and reused at normal ambient temperatures (-40 to 60°C), with a working pressure greater than or equal to 0.2 MPa (gauge pressure) and a pressure-volume product greater than or equal to 1.0 MPa·L, containing gases, liquefied gases, and liquids with a standard boiling point equal to or lower than 60°C. Gas cylinders have a wide range of applications; they are indispensable in both production and daily life.

[0003] Utility model patent CN215569742U discloses a pneumatic rapid gas cylinder filling clamp. This utility model includes a compressed air pipe, a one-way valve, a cylinder, a manual cylinder control valve, and an arc-shaped bracket. The compressed air pipe, one-way valve, and cylinder are all mounted on the arc-shaped bracket. The compressed air pipe is connected to the cylinder and the manual cylinder control valve, which is also mounted on the cylinder. Rapid assembly via the arc-shaped bracket and a reliable connection between the cylinder, manual cylinder control valve, and compressed air allow for fast and reliable gas cylinder filling. The clamping force of the cylinder is used to hold the gas cylinder valve, and it can withstand a gas cylinder filling pressure of 20 MPa. The clamp is equipped with a safety device, ensuring safe and reliable use.

[0004] While the aforementioned utility model can clamp the gas cylinder for inflation, it cannot ensure that the cylinder is positioned on the vertical line of the cylinder's extension and retraction during installation, making installation somewhat cumbersome. To facilitate quick and easy installation and securing of the gas cylinder, we propose a quick-connect anti-detachment locking structure for gas cylinder filling. Utility Model Content

[0005] This utility model provides a quick-connect anti-detachment locking structure for gas cylinder filling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-connect anti-detachment locking structure for gas cylinder filling includes a filling mechanism, inside which a gas cylinder inlet valve is placed, and a connecting mechanism is fixedly installed on the side wall of the filling mechanism.

[0008] The connecting mechanism includes a fixing mechanism, a snap-fit ​​mechanism inserted into the left end of the fixing mechanism, and a plug-in mechanism inserted into the upper side of the snap-fit ​​mechanism.

[0009] As a preferred technical solution, the fixing mechanism includes a fixing frame, a fixing bolt threaded to the right side surface of the fixing frame, and a connecting block welded to the lower end of the left side surface of the fixing frame. A fixing ring is welded to the left end of the connecting block. Two symmetrical snap-fit ​​grooves are opened on the left side surface of the fixing ring. Each snap-fit ​​groove has a snap-fit ​​hole on its upper surface. A stop block is welded to the upper end of the left side surface of the fixing frame.

[0010] This setup uses fixing bolts to achieve a rigid connection between the fixing mechanism and the filling mechanism, ensuring the stability of the foundation; the semi-circular design of the fixing ring can fit the shape of the gas cylinder's inlet valve to achieve pre-positioning.

[0011] As a preferred technical solution, the fixing bolt is a hexagonal bolt, and the right side surface of the fixing frame is provided with a threaded hole for threaded connection of the fixing bolt.

[0012] This feature allows for quick assembly and disassembly of the fixing mechanism and the filling mechanism, ensuring a secure connection and preventing loosening.

[0013] As a preferred technical solution, the top view of the fixing ring is semi-circular, and the fixing ring is arc-shaped and welded to the connecting block.

[0014] This design features a semi-circular structure that can fit the cylindrical shape of the gas cylinder's inlet valve. The right-facing arc design conforms to the side of the inlet valve, providing lateral restraint and preventing radial displacement during filling. This enhances the fit and stability of the connection.

[0015] As a preferred technical solution, the snap-fit ​​mechanism includes a snap-fit ​​ring, two symmetrically arranged snap-fit ​​blocks welded to the right side surface of the snap-fit ​​ring, and an insertion hole opened on the upper surface of each snap-fit ​​block.

[0016] This design allows the snap-fit ​​ring to wrap around the corresponding part of the gas cylinder's inlet valve, forming a coordinated fixation with the fixing ring; the snap-fit ​​block, as a key component connecting to the fixing mechanism, has a symmetrical design that ensures balanced force distribution.

[0017] As a preferred technical solution, the snap-fit ​​block and the snap-fit ​​slot are the same size, the insertion hole and the snap-fit ​​hole are the same size, and their positions correspond.

[0018] This setting, with its precise matching of size and position, ensures seamless connection between the snap-fit ​​mechanism and the fixing mechanism, avoiding loosening or jamming caused by misalignment. This not only improves assembly efficiency but also ensures tightness of the connection, providing a basic guarantee for the anti-detachment function.

[0019] As a preferred technical solution, the insertion mechanism includes a connecting piece and two insertion rods welded to the front and rear sides of the left end of the lower surface of the connecting piece. An arc-shaped groove is provided on the left side surface of the connecting piece, and the diameter of the arc-shaped groove is larger than the diameter of the handle at the top of the gas cylinder inlet valve.

[0020] This design allows the plug to be inserted into the snap-fit ​​hole and plug-in hole for locking. The arc-shaped groove design of the connecting piece avoids interference with the gas cylinder inlet valve handle, ensuring that the plug-in mechanism does not affect valve operation during installation. At the same time, the arc-shaped groove can limit the handle to a certain extent, further enhancing the compatibility and stability of the overall structure.

[0021] As a preferred technical solution, the insertion rod is inserted through the snap-fit ​​hole, and the distance between the upper surface of the connecting piece and the lower surface of the stop block is less than the length of the insertion rod.

[0022] This design, with its through-hole insert, achieves axial locking of the fixing mechanism and the locking mechanism, preventing them from separating. The limitation that "the distance between the connecting piece and the stop block is less than the length of the insert" ensures that the insert will not accidentally come out, forming a double anti-dislodgement guarantee. This effectively avoids connection failure caused by vibration and collision during the filling process, significantly improving operational safety.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. The connecting mechanism assists in positioning the gas cylinder, ensuring that it can be placed in a position where it can be clamped and fixed by the filling mechanism, thereby improving the efficiency of gas cylinder installation.

[0025] 2. Ensure that the gas cylinder is completely fixed after the filling mechanism is started to prevent damage to the gas cylinder due to incorrect placement of the gas cylinder, which could result in the cylinder extending and squeezing in the wrong position. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the connecting mechanism in this utility model;

[0028] Figure 3 This is a schematic diagram of the fixing mechanism in this utility model;

[0029] Figure 4 This is a schematic diagram of the snap-fit ​​mechanism in this utility model;

[0030] Figure 5 This is a schematic diagram of the insertion mechanism in this utility model;

[0031] The meanings of the labels in the diagram are as follows:

[0032] 100. Filling mechanism; 200. Gas cylinder inlet valve; 300. Connecting mechanism; 310. Fixing mechanism; 311. Fixing bracket; 312. Fixing bolt; 313. Connecting block; 314. Snap-fit ​​groove; 315. Snap-fit ​​hole; 316. Fixing ring; 317. Stop block; 320. Snap-fit ​​mechanism; 321. Snap-fit ​​ring; 322. Snap-fit ​​block; 323. Insertion hole; 330. Insertion mechanism; 331. Connecting piece; 332. Insert rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0034] Please see Figures 1-5 This embodiment provides a technical solution:

[0035] The quick-connect anti-detachment locking structure for gas cylinder filling includes a filling mechanism 100, inside which a gas cylinder inlet valve 200 is placed. A connecting mechanism 300 is fixedly installed on the side wall of the filling mechanism 100. The connecting mechanism 300 includes a fixing mechanism 310, a snap-fit ​​mechanism 320 inserted into the left end of the fixing mechanism 310, and a plug-in mechanism 330 inserted into the upper side of the snap-fit ​​mechanism 320. Through the above mechanism, when the gas cylinder is placed inside the filling mechanism 100, it can be quickly positioned and fixed by the connecting mechanism, so that the gas cylinder can be smoothly placed in a suitable position inside the filling mechanism 100 and wait to be clamped and fixed.

[0036] Furthermore, such as Figure 3 As shown, the fixing mechanism 310 includes a fixing frame 311, a fixing bolt 312 threaded to the right side surface of the fixing frame 311, and a connecting block 313 welded to the lower end of the left side surface of the fixing frame 311. A fixing ring 316 is welded to the left end of the connecting block 313. Two symmetrical snap-fit ​​grooves 314 are opened on the left side surface of the fixing ring 316. Each snap-fit ​​groove 314 has a snap-fit ​​hole 315 on its upper surface. A stop block 317 is welded to the upper end of the left side surface of the fixing frame 311.

[0037] Furthermore, such as Figure 3 As shown, the fixing bolt 312 is a hexagonal bolt. The right side surface of the fixing bracket 311 has a threaded hole for the fixing bolt 312 to be threaded. The fixing ring 316 is semi-circular in top view. The fixing ring 316 is arc-shaped and welded to the connecting block 313. The fixing bracket 311 is fixed on the filling mechanism 100 by the fixing bolt 312, which facilitates the subsequent installation and positioning of the gas cylinder.

[0038] In this embodiment, as Figure 4 As shown, the snap-fit ​​mechanism 320 includes a snap-fit ​​ring 321, two symmetrically arranged snap-fit ​​blocks 322 welded to the right side surface of the snap-fit ​​ring 321, and insertion holes 323 opened on the upper surface of each snap-fit ​​block 322. The snap-fit ​​blocks 322 and snap-fit ​​grooves 314 have the same size, and the insertion holes 323 and snap-fit ​​holes 315 have the same size and are in corresponding positions. After the gas cylinder is installed, the insertion rod 332 is used to directly connect the insertion holes 323 and snap-fit ​​holes 315 to fix the gas cylinder.

[0039] In this embodiment, as Figure 5 As shown, the insertion mechanism 330 includes a connecting piece 331 and two insertion rods 332 welded to the front and rear sides of the left end of the lower surface of the connecting piece 331. An arc-shaped groove is provided on the left side surface of the connecting piece 331. The diameter of the arc-shaped groove is larger than the diameter of the top handle of the gas cylinder inlet valve 200 to prevent the connecting piece 331 from being blocked by the gas cylinder inlet valve 200 when it is pushed upward, thus preventing it from continuing to move upward.

[0040] In this embodiment, as Figure 5 As shown, after the insertion rod 332 is inserted into the snap-fit ​​hole 315, it passes through the snap-fit ​​hole 323. The distance between the upper surface of the connecting piece 331 and the lower surface of the stop block 317 is less than the length of the insertion rod 332. This ensures that after the connecting piece 331 is blocked by the stop block 317, the insertion rod 332 is in the snap-fit ​​hole 315 and completely disengaged from the snap-fit ​​hole 323, so that the snap-fit ​​ring 321 can smoothly disengage from the fixing ring 316.

[0041] It is worth noting that the structure and working principle of the filling mechanism 100 and the gas cylinder inlet valve 200 involved in this embodiment are all technologies that have been disclosed in the prior art, and will not be described in detail here.

[0042] In the specific use of the gas cylinder filling process in this embodiment, the connecting piece 331 is first raised to its highest position until it contacts the stop block 317. Then, the snap ring 321 can be removed from the front end of the fixing ring 316. At this time, the gas cylinder is placed on the inner surface of the fixing ring 316. Then, the snap ring 321 is inserted back into the fixing ring 316. After the snap hole 315 and the insertion hole 323 are aligned, the connecting piece 331 is moved down so that the insertion rod 332 can be smoothly inserted into the snap hole 315 and the insertion hole 323, fixing the snap ring 321 and the fixing ring 316 together, thereby fixing the gas cylinder and waiting for the filling mechanism 100 to fill it.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-connect anti-detachment locking structure for gas cylinder filling, including a filling mechanism (100), characterized in that: The filling mechanism (100) has a gas cylinder inlet valve (200) inside, and a connecting mechanism (300) is fixedly installed on the side wall of the filling mechanism (100). The connecting mechanism (300) includes a fixing mechanism (310), a snap-fit ​​mechanism (320) inserted into the left end of the fixing mechanism (310), and a plug-in mechanism (330) inserted into the upper side of the snap-fit ​​mechanism (320).

2. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 1, characterized in that: The fixing mechanism (310) includes a fixing frame (311), a fixing bolt (312) threaded to the right side surface of the fixing frame (311), and a connecting block (313) welded to the lower end of the left side surface of the fixing frame (311). A fixing ring (316) is welded to the left end of the connecting block (313). Two symmetrical snap-fit ​​grooves (314) are opened on the left side surface of the fixing ring (316). A snap-fit ​​hole (315) is opened on the upper surface of each snap-fit ​​groove (314). A stop block (317) is welded to the upper end of the left side surface of the fixing frame (311).

3. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 2, characterized in that: The fixing bolt (312) is a hexagonal bolt, and the right side surface of the fixing bracket (311) has a threaded hole for threaded connection of the fixing bolt (312).

4. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 3, characterized in that: The fixed ring (316) is semi-circular in top view, and the fixed ring (316) is arc-shaped and welded to the connecting block (313).

5. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 4, characterized in that: The snap-fit ​​mechanism (320) includes a snap-fit ​​ring (321), two symmetrically arranged snap-fit ​​blocks (322) welded to the right side surface of the snap-fit ​​ring (321), and a plug hole (323) opened on the upper surface of each snap-fit ​​block (322).

6. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 5, characterized in that: The snap-fit ​​block (322) has the same size as the snap-fit ​​groove (314), and the insertion hole (323) has the same size as the snap-fit ​​hole (315) and their positions correspond.

7. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 6, characterized in that: The insertion mechanism (330) includes a connecting piece (331) and two insert rods (332) welded to the front and rear sides of the left end of the lower surface of the connecting piece (331). An arc-shaped groove is provided on the left side surface of the connecting piece (331), and the diameter of the arc-shaped groove is larger than the diameter of the top handle of the gas cylinder inlet valve (200).

8. The quick-connect anti-detachment locking structure for gas cylinder filling as described in claim 7, characterized in that: After the insertion rod (332) is inserted into the snap-fit ​​hole (315), it passes through the insertion hole (323). The distance between the upper surface of the connecting piece (331) and the lower surface of the stop block (317) is less than the length of the insertion rod (332).

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