Metal hose flange connector plugging device

Abstract

The utility model discloses a metal hose flange connector plugging device which comprises a flange cover, a metal hose and a metal hose, a sliding hole is formed in the outer side of the connector, the limiting sliding rod is arranged in the sliding hole in a sliding mode, a first spring used for providing pulling force is arranged on the outer side of the limiting sliding rod in a sleeved mode, and a limiting piece used for limiting is rotatably arranged at the bottom of the limiting sliding rod. A limiting piece and a limiting sliding rod are used for achieving rapid assembly, disassembly and fixation of the PTFE flange blind plate and the metal hose flange connector; compared with a traditional embedded four-hole protective cover, the protective cover has the advantages of being convenient, fast, safe, firm and durable.

Description

Technical Field

[0001] The utility model relates to the technical field of metal hose flange interface plugging, in particular to a metal hose flange interface plugging device. Background Technique

[0002] According to the provisions in 4.5.6.6 of the "Safety Technical Regulations for the Operation, Maintenance and Emergency Repair of Urban Gas Facilities" (CJJ 51-2016): After (loading) unloading the vehicle, the remaining liquid in the unloading (loading) hose should be recovered: the removed cryogenic hose should be in a natural expansion state, and forced bending is strictly prohibited, and its interface should be plugged. The traditional embedded flange protection cover and four-eye flange protection cover are both made of PE plastic, and are prone to aging and wear during use. The falling plastic waste residue may pollute the metal hose and even damage the operating valve; the embedded flange protection cover has good protection performance and is not easy to fall off, but its installation method does not affect the connection of the flange even if it is forgotten to be removed during the loading and unloading process of the vehicle, which is likely to cause accidents; and for the four-eye flange protection cover, since the flange of the metal hose is a movable flange, it is easy for the flange cover to fall off. Content of the Utility Model

[0003] The purpose of the utility model is to provide a metal hose flange interface plugging device to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A metal hose flange interface plugging device, comprising:

[0005] A flange cover, which is a disc with a plurality of sliding holes provided at the top;

[0006] A limiting slide bar, which is slidably placed inside the sliding hole. A first spring for providing a pulling force is sleeved outside the limiting slide bar. A limiting piece for limiting is rotatably provided at the bottom of the limiting slide bar, and the position where the limiting piece is rotatably connected to the limiting slide bar deviates from the center of the limiting piece;

[0007] A driving inclined part, which is placed inside the limiting slide bar. The driving inclined part includes a connecting rod slidably connected inside the limiting slide bar, and a moving push block for driving the limiting piece to rotate is fixedly connected to the bottom of the connecting rod.

[0008] Preferably, a connecting plate is fixedly connected to the top of the limiting slide bar, and the first spring is placed between the flange cover and the connecting plate.

[0009] Preferably, a U-shaped chute is provided at the bottom of the limiting slide bar, and the limiting piece is rotatably installed in the limiting piece through a rotating shaft. When the limiting slide bar is vertical, the limiting piece is vertically placed inside the chute.

[0010] Preferably, the middle part of the connecting plate is connected by screw threads for screwing.

[0011] Preferably, a lifting plate is fixedly connected to the top of the connecting rod, and a second spring is sleeved outside the connecting rod and between the connecting plate and the lifting plate.

[0012] Preferably, the limiting piece is of a rounded rectangular structure, the moving push block is of a triangular structure, the moving push block is located on one side above the limiting piece, and the hypotenuse of the moving push block faces one side of the limiting piece.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: the four-flange blind plate is used to block the interface, and the limiting piece and the limiting slide rod are used to quickly install, disassemble and fix the four-flange blind plate and the metal hose flange interface. Compared with the traditional embedded type and four-eye protection cover, it has the characteristics of convenience, safety, firmness and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded view of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the present utility model;

[0016] Figure 3 is an enlarged view of part A of the present utility model;

[0017] Figure 4 is a structural schematic diagram of the present utility model when in use.

[0018] In the figure: 1, flange cover; 2, sliding hole; 3, limiting slide rod; 4, chute; 5, limiting piece; 6, connecting plate; 7, first spring; 8, lifting plate; 9, screw thread for screwing; 10, connecting rod; 11, second spring; 12, moving push block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1 , 2, as shown in FIGS. 3 and 4, the present utility model provides a technical solution: a metal hose flange interface plugging device, comprising: the flange cover 1 is a DN50 tetrafluoro flange cover, and the flange cover 1 is a disc with a plurality of sliding holes 2 provided at the top. The sliding holes 2 are correspondingly arranged corresponding to the fixing holes of the metal hose flange interface; the limiting slide rod 3 is slidably placed inside the sliding hole 2, and a first spring 7 for providing a pulling force is sleeved outside the limiting slide rod 3. A limiting piece 5 for limiting is rotatably provided at the bottom of the limiting slide rod 3, and the position where the limiting piece 5 is rotatably connected to the limiting slide rod 3 deviates from the center of the limiting piece 5; the driving inclined part is placed inside the limiting slide rod 3, and the driving inclined part includes a connecting rod 10 slidably connected inside the limiting slide rod 3. A moving push block 12 for driving the limiting piece 5 to rotate is fixedly connected to the bottom of the connecting rod 10.

[0021] It should be noted that in the present utility model, since the rotation axis of the limiting piece 5 is located at a position deviating from the center of the limiting piece 5, when the limiting slide rod 3 is in the vertical state, under the action of gravity, the limiting piece 5 is in the vertical state. Press the limiting slide rod 3 downward so that the first spring 7 is compressed. Keep the metal hose flange interface vertically upward, and then install the connecting rod 10 from top to bottom with the metal hose flange interface, so that the limiting piece 5 and the chute 4 are inserted into the installation hole of the metal hose flange interface. Then press the connecting rod 10 so that the connecting rod 10 drives the moving push block 12 to move downward. The moving push block 12 pushes the limiting piece 5 to be inclined. Under the action of the first spring 7, the limiting slide rod 3 moves upward. At this time, the limiting piece 5 is squeezed into a horizontal state by the metal hose flange interface and blocks at the bottom of the metal hose flange interface, thereby plugging through the flange cover 1.

[0022] Please refer to Figure 1 , 2 , as shown in the figure, a connecting plate 6 is fixedly connected to the top of the limiting slide rod 3. The first spring 7 is placed between the flange cover 1 and the connecting plate 6. A U-shaped chute 4 is provided at the bottom of the limiting slide rod 3. The limiting piece 5 is rotatably installed in the limiting piece 5 through a rotating shaft. When the limiting slide rod 3 is vertical, the limiting piece 5 is vertically placed in the chute 4.

[0023] It should be noted that in the present utility model, the connecting plate 6 connects the top of the limiting slide rod 3. The limiting slide rod 3 can be driven to expand and contract through the connecting plate 6. The first spring 7 is arranged between the flange cover 1 and the connecting plate 6 to provide a pulling force, so that the limiting piece 5 can be passively stuck at the bottom of the metal hose flange interface when it is inclined. The limiting piece 5 is rotatably installed in the chute 4 through a rotating shaft. The limiting piece 5 can rotate around its axis. The limiting piece 5 is inclined from the vertical state to the horizontal state during the operation process and is in the horizontal state when contacting the metal hose flange interface to realize the limitation of the flange cover 1.

[0024] Please refer to Figure 1 , 2, as shown in Figures 3 and 4, a threaded connection 9 is screwed in the middle of the connecting plate 6.

[0025] It should be noted that in the present utility model, when the flange cover 1 is covered outside the metal hose flange interface under the limitation of the limiting piece 5, by rotating the threaded twist 9, the top of the threaded twist 9 contacts the flange cover 1. Under the extrusion effect, the connecting plate 6 drives the limiting slide bar 3 to move upward, so that the flange cover 1 can closely adhere to the metal hose flange interface.

[0026] Please refer to Figure 1 , 2 , as shown in Figures 3 and 4, a lifting plate 8 is fixedly connected to the top of the connecting rod 10. A second spring 11 is sleeved outside the connecting rod 10 and between the connecting plate 6 and the lifting plate 8. The limiting piece 5 is a rounded rectangle structure, the moving push block 12 is a triangular structure, the moving push block 12 is located on one side above the limiting piece 5, and the hypotenuse of the moving push block 12 faces the side of the limiting piece 5.

[0027] It should be noted that the limiting piece 5 is rotationally installed in the limiting piece 5 through a rotating shaft. Because the rotating shaft is located at the position of the partial end of the limiting piece 5, under the action of gravity, a longer part is located below. When the lifting plate 8 presses towards the connecting plate 6, the second spring 11 is compressed. The lifting plate 8 drives the moving push block 12 to move downward through the connecting rod 10. The inclined surface of the moving push block 12 squeezes the curved surface at the end of the limiting piece 5, causing the limiting piece 5 to tilt. The top of the limiting piece 5 leaks out from one side of the sliding groove 4. When the limiting slide bar 3 is lifted upward, the limiting piece 5 is squeezed into a horizontal state by the bottom of the metal hose flange interface. In this way, the bottom of the limiting slide bar 3 is restricted at the bottom of the metal hose flange interface, and the first spring 7 presses the flange cover 1 tightly on the top of the metal hose flange interface.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "up", "one side", "top", "inside", "front part", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0029] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0030] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A metal hose flange interface plugging device, characterized in that: Comprising: A flange cover (1), the flange cover (1) being a disc with a plurality of sliding holes (2) provided at the top; A limiting slide bar (3), the limiting slide bar (3) being slidably disposed inside the sliding hole (2), a first spring (7) for providing a pulling force being sleeved outside the limiting slide bar (3), a limiting piece (5) for limiting being rotatably provided at the bottom of the limiting slide bar (3), and the position where the limiting piece (5) is rotatably connected to the limiting slide bar (3) being offset from the center of the limiting piece (5); A driving inclined part, the driving inclined part being disposed inside the limiting slide bar (3), the driving inclined part including a connecting rod (10) slidably connected inside the limiting slide bar (3), and a moving push block (12) for driving the limiting piece (5) to rotate being fixedly connected to the bottom of the connecting rod (10).

2. The metal hose flange interface plugging device according to claim 1, characterized in that: The top of the limiting slide bar (3) is fixedly connected with a connecting plate (6), and the first spring (7) is disposed between the flange cover (1) and the connecting plate (6).

3. The metal hose flange interface plugging device according to claim 2, characterized in that: A U-shaped chute (4) is provided at the bottom of the limiting slide bar (3), and the limiting piece (5) is rotatably installed in the limiting slide bar (5) through a rotating shaft. When the limiting slide bar (3) is vertical, the limiting piece (5) is vertically disposed inside the chute (4).

4. A metal hose flange interface plugging device according to claim 3, characterized in that: A screw thread (9) is threadedly connected to the middle of the connecting plate (6).

5. A metal hose flange interface plugging device according to claim 1, characterized in that: A lifting plate (8) is fixedly connected to the top of the connecting rod (10), and a second spring (11) is sleeved outside the connecting rod (10) and between the connecting plate (6) and the lifting plate (8).

6. The plugging device for the metal hose flange interface according to claim 1, wherein: The limiting piece (5) is of a rounded rectangular structure, the moving push block (12) is of a triangular structure, the moving push block (12) is located on one side above the limiting piece (5), and the hypotenuse of the moving push block (12) faces one side of the limiting piece (5).

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