A quick-fill connector for cryogenic containers

Abstract

This utility model relates to the field of rapid filling connectors for cryogenic containers, specifically a rapid filling connector for cryogenic containers. It includes a filling connector body, with a pivot pin rotatably connected internally. An operating handle is fixedly connected to the side wall of the pivot pin. An inlet is fixedly installed on the surface of the filling connector body, and an outlet is fixedly installed on the other side of the filling connector body. The operating handle has a locking structure, including a fixing ring fixedly connected to the side wall of the filling connector body, located on the side of the pivot pin. The fixing ring has a plurality of insertion holes arranged circumferentially on its surface. A fixing pin is fixedly connected to the side wall of the operating handle. This utility model, by setting a locking structure, facilitates flexible locking of the operating handle after twisting, improves the stability of controlling the operating handle after twisting, and thus improves the performance of the rapid filling connector for cryogenic containers.

Description

Technical Field

[0001] This utility model relates to the field of rapid filling connectors for cryogenic containers, and in particular to a rapid filling connector for cryogenic containers. Background Technology

[0002] The cryogenic container quick-fill connector is a special connection device used for cryogenic liquid filling operations. Its core feature is to achieve a quick and sealed connection between the cryogenic container and the filling pipeline. This connector is usually made of cryogenic resistant materials and has a special internal sealing structure, which can maintain good sealing performance at extremely low temperatures and prevent cold damage or safety hazards caused by cryogenic liquid leakage.

[0003] Existing technologies often have the following drawbacks: In the actual use of cryogenic container quick-fill connectors, the locking between the inlet and the cryogenic container is often achieved by twisting the operating handle. However, the operating handle is prone to twisting under external force, which reduces the stability of using the cryogenic container quick-fill connector.

[0004] Therefore, this utility model provides a quick filling connector for cryogenic containers. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies in terms of low stability when using rapid filling connectors for cryogenic containers, and to propose a rapid filling connector for cryogenic containers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid filling connector for a cryogenic container, comprising a filling connector body, a pivot pin rotatably connected inside the filling connector body, an operating handle fixedly connected to the side wall of the pivot pin, an inlet fixedly installed on the surface of the filling connector body, an outlet fixedly installed on the other side of the filling connector body, a locking structure provided on the surface of the operating handle, the locking structure including a fixing ring fixedly connected to the side wall of the filling connector body, the fixing ring being located on the side of the pivot pin, a plurality of insertion holes arranged circumferentially on the surface of the fixing ring, a fixing pin fixedly connected to the side wall of the operating handle, and a pin slidably passing through the fixing pin and the inside of the operating handle, the size of the pin being adapted to the size of the insertion hole.

[0007] The effect achieved by the above components is as follows: by setting a locking structure, it is convenient to flexibly lock the operating handle after twisting, improves the stability of controlling the operating handle after twisting, and thus improves the performance of the rapid filling connector for cryogenic containers.

[0008] Preferably, a retaining ring is fixedly connected to the side wall of the pin.

[0009] The effect achieved by the above components is that during the filling process, the cryogenic liquid enters the filling pipeline from the outlet and enters the cryogenic container from the inlet through the internal channel of the filling connector body.

[0010] Preferably, a first spring is fitted onto the surface of the pin, and the two ends of the first spring are fixedly connected to the retaining ring and the fixing pin, respectively.

[0011] The effect achieved by the above components is that the first spring pushes the pin into the socket to complete the locking.

[0012] Preferably, a rotating plate is rotatably connected to the end of the pin.

[0013] The effect achieved by the above components is that the rotating plate facilitates the lifting and pulling of the latch.

[0014] Preferably, a support rod is fixedly connected to the side wall of the operating handle.

[0015] The effect achieved by the above components is that by supporting the rotating plate on the surface of the support rod, temporary support can be provided for the raised pin.

[0016] Preferably, the surface of the filling connector body is provided with a shielding structure, the shielding structure including a positioning pin fixedly connected to the surface of the filling connector body, and a baffle is rotatably connected to the side wall of the positioning pin.

[0017] The effect achieved by the above components is as follows: by setting up a shielding structure, it is convenient to flexibly shield the inlet position, which not only prevents impurities from entering the inlet position when not in use, but also prevents the inlet position from being worn and affecting the subsequent connection of the inlet position, thus further improving the protection effect of the rapid filling connector of the cryogenic container.

[0018] Preferably, a rectangular block is fixedly connected to the surface of the baffle, and a card frame is slidably connected inside the rectangular block. The side wall of the positioning pin has several slots, and the size of the slots is adapted to the size of the card frame.

[0019] The above components achieve the following effects: pulling the card frame into the corresponding slot, fixing the position of the baffle, and fixing the work by flexibly rotating the baffle.

[0020] Preferably, the card frame is a rectangular ring structure, and a second spring is fixedly connected between the card frame and the rectangular block.

[0021] The effect achieved by the above components is that the second spring pulls the clip frame into the corresponding slot.

[0022] In summary:

[0023] 1. By setting a locking structure, this utility model facilitates the flexible locking of the operating handle after twisting, improves the stability of controlling the operating handle after twisting, and thus improves the performance of the rapid filling connector for cryogenic containers.

[0024] 2. By setting a shielding structure, this utility model facilitates flexible shielding of the inlet position, which not only prevents impurities from entering the inlet position when not in use, but also prevents the inlet position from being worn and affecting subsequent connection to the inlet position, thus further improving the protection effect of the rapid filling connector for cryogenic containers. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a partial structural schematic diagram of the present invention;

[0027] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0028] Figure 4 In this utility model Figure 2 Enlarged view of point B.

[0029] Legend: 1. Filling connector body; 2. Outlet; 3. Inlet; 4. Turning pin; 5. Operating handle; 6. Locking structure; 61. Fixing ring; 62. Insertion hole; 63. Fixing pin; 64. Insertion pin; 65. Retaining ring; 66. First spring; 67. Turning plate; 68. Support rod; 7. Blocking structure; 71. Positioning pin; 72. Baffle; 73. Rectangular block; 74. Frame; 75. Second spring; 76. Slot. Detailed Implementation

[0030] Reference Figure 1 As shown, this utility model provides a technical solution: a rapid filling connector for a cryogenic container, including a filling connector body 1, a pivot pin 4 rotatably connected inside the filling connector body 1, an operating handle 5 fixedly connected to the side wall of the pivot pin 4, an inlet 3 fixedly installed on the surface of the filling connector body 1, an outlet 2 fixedly installed on the other side of the filling connector body 1, a locking structure 6 provided on the surface of the operating handle 5, and a shielding structure 7 provided on the surface of the filling connector body 1.

[0031] The following section will explain the specific design and function of its locking structure 6 and shielding structure 7.

[0032] In this embodiment: the locking structure 6 includes a fixing ring 61 fixedly connected to the side wall of the filling connector body 1. The fixing ring 61 is located on the side of the pivot pin 4. The surface of the fixing ring 61 has a plurality of insertion holes 62 arranged in a circumferential array. A fixing pin 63 is fixedly connected to the side wall of the operating handle 5. A pin 64 is slidably inserted through the fixing pin 63 and the inside of the operating handle 5. The size of the pin 64 is adapted to the size of the insertion holes 62. By setting the locking structure 6, the flexible locking operation of the operating handle 5 after twisting is facilitated, the stability of controlling the operating handle 5 after twisting is improved, and thus the performance of the cryogenic container quick filling connector is improved. A retaining ring 65 is fixedly connected to the side wall of the pin 64. During the filling process, the cryogenic liquid enters the filling pipeline from the outlet 2, and enters the cryogenic container from the inlet 3 through the internal channel of the filling connector body 1. A first spring 66 is sleeved on the surface of the pin 64. The two ends of the first spring 66 are fixedly connected to the retaining ring 65 and the fixing pin 63, respectively. The first spring 66 pushes the pin 64 into the insertion hole 62 to complete the locking. A rotating plate 67 is rotatably connected to the end of the pin 64. The rotating plate 67 facilitates the lifting and pulling of the pin 64. A support rod 68 is fixedly connected to the side wall of the operating handle 5. By supporting the rotating plate 67 on the surface of the support rod 68, temporary support can be provided for the pin 64 after it is lifted.

[0033] Specifically, the shielding structure 7 includes a positioning pin 71 fixedly connected to the surface of the filling connector body 1, and a baffle 72 rotatably connected to the side wall of the positioning pin 71. By setting the shielding structure 7, flexible shielding of the inlet 3 position is facilitated, not only preventing impurities from entering the inlet 3 position when not in use, but also preventing wear on the inlet 3 position that could affect subsequent connection to the inlet position, further improving the protective effect on the cryogenic container quick-fill connector. A rectangular block 73 is fixedly connected to the surface of the baffle 72, and a retaining frame 74 is slidably connected inside the rectangular block 73. Several slots 76 are provided on the side wall of the positioning pin 71, and the size of the slots 76 matches the size of the retaining frame 74. Pulling the retaining frame 74 into the corresponding slot 76 fixes the position of the baffle 72 through flexible rotation. The retaining frame 74 is a rectangular ring structure, and a second spring 75 is fixedly connected between the retaining frame 74 and the rectangular block 73. The second spring 75 pulls the retaining frame 74 into the corresponding slot 76.

[0034] Working principle: During filling and docking, pulling the rotating plate 67 causes the pin 64 to compress the first spring 66. Rotating the operating handle 5, when locking the operating handle 5 is required, rotate the operating handle 5 until the pin 64 is aligned with the target socket 62. Releasing the rotating plate 67 allows the first spring 66 to push the pin 64 into the socket 62, completing the locking. At this point, the operating handle 5 cannot be rotated. During filling, the cryogenic liquid enters the filling pipeline from the outlet 2, passes through the internal channel of the filling connector body 1, and enters the cryogenic container from the inlet 3. After filling is complete, pulling the rotating plate 67 disengages the pin 64 from the socket 62, and rotating the operating handle 5 in the opposite direction allows the inlet... 3. Separated from the container interface, the rotating plate 67 facilitates the lifting and pulling of the pin 64. Supporting the rotating plate 67 on the surface of the support rod 68 provides temporary support for the raised pin 64, thereby improving the flexibility of operating the handle 5. Operators can choose whether to use the locking mechanism between the pin 64 and the socket 62 according to their needs. By setting the locking structure 6, it is convenient to flexibly lock the handle 5 after twisting, improving the stability of controlling the handle 5 after twisting, and thus improving the performance of the cryogenic container quick filling connector.

[0035] Before use, ensure that the shielding structure 7 is in the open position. Pull the clip 74 to compress the second spring 75, causing it to disengage from the slot 76 of the positioning pin 71. Rotate the baffle 72 until it completely avoids the inlet 3. Release the clip 74, and the second spring 75 will pull the clip 74 into the corresponding slot 76, fixing the position of the baffle 72. By flexibly rotating and fixing the baffle 72, the flexible shielding of the inlet 3 position is facilitated, improving the flexibility of using the inlet 3 position. By setting the shielding structure 7, the flexible shielding of the inlet 3 position is facilitated, not only preventing impurities from entering the inlet 3 position when not in use, but also preventing wear on the inlet 3 position, which would affect the subsequent connection to the inlet position, further improving the protection effect of the cryogenic container quick-fill connector.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A fast filling connection for cryogenic vessels, comprising a filling connection body (1), characterized in that: The filling connector body (1) is rotatably connected to a pivot pin (4). An operating handle (5) is fixedly connected to the side wall of the pivot pin (4). An inlet (3) is fixedly installed on the surface of the filling connector body (1). An outlet (2) is fixedly installed on the other side of the filling connector body (1). A locking structure (6) is provided on the surface of the operating handle (5). The locking structure (6) includes a fixing ring (61) fixedly connected to the side wall of the filling connector body (1). The fixing ring (61) is located on the side of the pivot pin (4). A plurality of insertion holes (62) are arranged in a circular array on the surface of the fixing ring (61). A fixing pin (63) is fixedly connected to the side wall of the operating handle (5). A pin (64) slides through the fixing pin (63) and the inside of the operating handle (5). The size of the pin (64) matches the size of the insertion hole (62).

2. A quick-fill coupling for a cryogenic vessel according to claim 1, wherein: A retaining ring (65) is fixedly connected to the side wall of the pin (64).

3. A quick-fill coupling for a cryogenic vessel according to claim 2, wherein: The surface of the pin (64) is fitted with a first spring (66), and the two ends of the first spring (66) are fixedly connected to the retaining ring (65) and the fixing pin (63) respectively.

4. A quick-fill connector for a cryogenic vessel according to claim 1, wherein: The end of the pin (64) is rotatably connected to a rotating plate (67).

5. A quick-fill coupling for a cryogenic vessel according to claim 1, wherein: A support rod (68) is fixedly connected to the side wall of the operating handle (5).

6. A quick-fill connector for a cryogenic vessel according to claim 1, wherein: The surface of the filling connector body (1) is provided with a shielding structure (7), the shielding structure (7) includes a positioning pin (71) fixedly connected to the surface of the filling connector body (1), and a baffle (72) is rotatably connected to the side wall of the positioning pin (71).

7. A quick-fill coupling for a cryogenic vessel according to claim 6, wherein: A rectangular block (73) is fixedly connected to the surface of the baffle (72), and a card frame (74) is slidably connected inside the rectangular block (73). Several slots (76) are provided on the side wall of the positioning pin (71), and the size of the slots (76) is adapted to the size of the card frame (74).

8. A quick-fill coupling for a cryogenic vessel according to claim 7, wherein: The card frame (74) is a rectangular ring structure, and a second spring (75) is fixedly connected between the card frame (74) and the rectangular block (73).

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