Fluid connector with lockhole elastic sheet

Abstract

The fluid connector comprises a valve body, a valve ball assembly, a handle and a locking assembly, the valve body is provided with a clamping part and an interface groove, the valve ball assembly is rotationally arranged in the valve body, the handle is arranged on the valve ball assembly, a meshing groove is formed in the handle, and the locking assembly comprises a positioning rod, the lock hole elastic piece and a positioning hole; according to the fluid connector with the lock hole elastic piece, when the two ball valves are not connected, the lock hole elastic piece locks the positioning rod, the meshing part of the positioning rod is meshed with the meshing groove of the handle, and the positioning rod locks the handle, so that when the two valve bodies are not connected, the risk that the handle is touched by mistake is avoided, and fluid leakage is prevented.

Description

Technical Field

[0001] This utility model relates to a fluid connector with a locking spring. Background Technology

[0002] Ball valve connectors are commonly used fluid connectors in industrial production. Traditional ball valve connectors feature a locking device on the handle. This locking device moves synchronously with the handle, and two positioning grooves correspond to the locking device and are located on the valve body. When the locking device moves to the first or second position, it engages with the corresponding positioning groove, placing the ball valve in either the fully open or fully closed state. This locking device on the handle prevents accidental handle contact and potential misoperation of the ball valve.

[0003] The aforementioned device can lock the handle to prevent accidental activation. However, even when the two ball valves are not connected, personnel can still press the handle to unlock it, which increases the risk of accidental activation and could lead to fluid leakage. Summary of the Invention

[0004] The purpose of this utility model is to provide a fluid connector with a locking spring, including a valve body, a valve ball assembly and a handle. The valve body has a snap-fit ​​part and an interface groove on its mating surface. The valve ball assembly is rotatably disposed inside the valve body. The opening and closing of the valve body is controlled by the rotation of the valve ball assembly. The handle is disposed on the valve ball assembly and has a meshing groove. It also includes a locking component.

[0005] The locking assembly includes a positioning rod, a locking spring, and a positioning hole. The opening of the positioning hole is located on the mating surface. The positioning rod is slidably connected to the valve body and is disposed on the valve body. The positioning rod has an engaging portion located on the side of the positioning rod near the engaging groove, and the engaging portion engages with the engaging groove. The locking spring includes a connecting piece and a locking piece. The side of the connecting piece and the side of the locking piece are elastically connected through a cylindrical column. The connecting piece is fixedly connected to the valve body. The locking piece is movably disposed in the interface groove. The connecting piece has an installation through hole, and the locking piece has a locking through hole. The inner diameter of the locking through hole is larger than the diameter of the positioning rod. The positioning rod passes through the installation through hole and the locking through hole. The positioning rod has a locking groove that engages with the locking piece.

[0006] Preferably, one end of the positioning rod is provided with an engaging part that engages with the engaging groove of the handle, and the other end of the positioning rod is provided with a plug that matches the positioning hole.

[0007] Preferably, the fluid connector further includes a sealing ring, which is fixedly connected to the valve body and located on the mating surface of the valve body.

[0008] Preferably, the valve ball assembly includes a valve ball and a valve stem, the valve ball being rotatably mounted inside the valve body; the valve stem is fixedly connected to the valve ball and to the handle, and is located on top of the valve ball; the valve ball has a fluid passage that extends through the valve ball.

[0009] Preferably, the keyhole spring is V-shaped, and the connecting piece, locking piece, and cylindrical column of the keyhole spring are integrally formed.

[0010] The advantages and beneficial effects of this utility model are as follows: It provides a fluid connector with a locking spring piece. When the two ball valves are not connected, the locking spring piece locks the positioning rod. The meshing part of the positioning rod meshes with the meshing groove of the handle. The positioning rod locks the handle, thereby avoiding the risk of accidental contact of the handle when the two valve bodies are not connected and preventing fluid leakage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the present invention.

[0012] Figure 2 This is a partial schematic diagram of the locking component in this utility model.

[0013] Figure 3 This is an enlarged schematic diagram of the positioning rod and the lock hole spring in this utility model.

[0014] Figure 4 This is a top view of the cross-section of this utility model. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0016] The specific technical solution of this utility model is as follows:

[0017] like Figures 1 to 4 As shown, a fluid connector with a locking spring includes a valve body 1, a valve ball assembly 2, and a handle 3. The valve body 1 has a snap-fit ​​part 41 and an interface groove 42 on its mating surface 4. The valve ball assembly 2 is rotatably disposed inside the valve body 1, and the opening and closing of the valve body 1 is controlled by the rotation of the valve ball assembly 2. The handle 3 is disposed on the valve ball assembly 2 and has an engagement groove 31. The connector also includes a locking component 5.

[0018] The locking assembly 5 includes a positioning rod 51, a locking spring 52, and a positioning hole 53. The opening of the positioning hole 53 is disposed on the mating surface 4. The positioning rod 51 is slidably connected to the valve body 1 and is disposed on the valve body 1. The positioning rod 51 has an engaging portion 511, which is disposed on the side of the positioning rod 51 near the engaging groove 31 and engages with the engaging groove 31. The locking spring 52 is disposed inside the valve body 1 and includes a connecting piece 521 and a locking piece 522. The side of 21 is elastically connected to the side of the locking plate 522 through the cylindrical column 523. The connecting plate 521 is fixedly connected to the valve body 1. The locking plate 522 is movably disposed in the interface groove 42. The connecting plate 521 has an installation through hole 5211. The locking plate 522 has a locking through hole 5221. The inner diameter of the locking through hole 5221 is larger than the diameter of the positioning rod 51. The positioning rod 51 passes through the installation through hole 5211 and the locking through hole 5221. The positioning rod 51 has a locking groove 513 that engages with the locking plate 522.

[0019] One end of the positioning rod 51 is provided with a meshing part 511, which meshes with the meshing groove 31 of the handle 3. The other end of the positioning rod 51 is provided with a plug 512, which matches the positioning hole 53.

[0020] The fluid connector also includes a sealing ring 6, which is fixedly connected to the valve body 1 and located on the mating surface 4 of the valve body 1.

[0021] The valve ball assembly 2 includes a valve ball 21 and a valve stem 22. The valve ball 21 is rotatably installed inside the valve body 1. The valve stem 22 is fixedly connected to the valve ball 21 and is fixedly connected to the handle 3, and is located at the top of the valve ball 21. The valve ball 21 has a fluid passage 23 that passes through the valve ball 21.

[0022] The aforementioned keyhole spring 52 is V-shaped in general, and the connecting piece 521, locking piece 522 and cylinder 523 of the keyhole spring 52 are integrally formed.

[0023] When in use, with the two ball valves 1 not connected, the handle 3 is in the closed position, and the positioning rod 51 is retracted into the valve body 1. The locking spring 52 is also located inside the valve body 1. The positioning rod 51 passes through the mounting through hole 5211 and the locking through hole 5221 of the connecting piece 521. Due to the tilt of the locking piece 522, the locking through hole 5221 is obliquely engaged in the locking groove 513. The locking spring 52 locks the positioning rod 51. Since the engaging part 511 of the positioning rod 51 engages with the engaging groove 31 of the handle 3, the handle 3 is locked, so that when the valve body 1 is not connected, the handle 3 is in the closed position and locked, preventing fluid leakage.

[0024] When the two valve bodies 1 are connected, the snap-fit ​​part 41 of one valve body 1 rotates and snaps into the interface groove 42 of the other valve body 1. During the rotation, the snap-fit ​​part 41 pushes the locking piece 522 in the other valve body 1 toward the connecting piece 521. The cylinder 523 elastically deforms, the locking through hole 5221 on the locking piece 522 returns to center, the locking through hole 5221 exits from the locking groove 513, and the locking through hole 5221 is re-fitted onto the positioning rod 51. The locking state of the locking hole spring piece 52 on the positioning rod 51 is released. At this time, the handle 3 can be rotated. By rotating the handle 3, the valve stem 22 and the valve ball 21 are rotated, thereby opening the valve body 1. During the rotation of the handle 3, the positioning rod 51 is driven to move through the engagement groove 31 and the engagement part 511, so that the positioning rod 51 extends into the positioning hole 53 on the other valve body 1 to position the two valve bodies 1.

[0025] When the two valve bodies 1 are not connected in place, the positioning hole 53 on one valve body 1 is not aligned with the positioning rod 51 on the other valve body 1. At this time, the positioning rod 51 cannot be inserted into the positioning hole 53, which prevents the handle 3, valve stem 22 and valve ball 21 from rotating, thus avoiding fluid leakage caused by the valve body 1 being opened even when the two valve bodies 1 are not connected in place.

[0026] Finally, when valve body 1 is not closed or not fully closed (i.e., handle 3 is not in the closed position), the positioning rod 51 is not fully retracted into valve body 1, causing the positioning rod 51 to be fully or partially inserted into the positioning hole 53 on another valve body 1. At this time, the two valve bodies 1 cannot rotate. Only after valve body 1 is fully closed can the two valve bodies 1 rotate to disconnect the connection, thus avoiding fluid leakage caused by disconnection when valve body 1 is not closed or not fully closed.

[0027] The fluid connector with locking spring 52 of this utility model can not only lock the handle 3 when the two valve bodies 1 are not connected, but also prevent the handle 3 from being opened when the two valve bodies 1 are not connected in place. It can also prevent the connection between the two valve bodies 1 from being disconnected when the handle 3 is not fully closed, thereby greatly reducing the risk of fluid leakage.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fluid connector with a locking spring, comprising a valve body, a valve ball assembly, and a handle, wherein the valve body has a snap-fit ​​portion and an interface groove on its mating surface, the valve ball assembly is rotatably disposed inside the valve body, and the rotation of the valve ball assembly controls the opening and closing of the valve body, the handle is disposed on the valve ball assembly, and the handle is provided with an engagement groove, characterized in that, It also includes locking components; The locking assembly includes a positioning rod, a locking spring, and a positioning hole. The opening of the positioning hole is located on the mating surface. The positioning rod is slidably connected to the valve body and is disposed on the valve body. The positioning rod has an engaging portion located on the side of the positioning rod near the engaging groove, and the engaging portion engages with the engaging groove. The locking spring includes a connecting piece and a locking piece. The side of the connecting piece and the side of the locking piece are elastically connected through a cylindrical column. The connecting piece is fixedly connected to the valve body. The locking piece is movably disposed in the interface groove. The connecting piece has an installation through hole, and the locking piece has a locking through hole. The inner diameter of the locking through hole is larger than the diameter of the positioning rod. The positioning rod passes through the installation through hole and the locking through hole. The positioning rod has a locking groove that engages with the locking piece.

2. A fluid connector with a locking spring tab according to claim 1, characterized in that, One end of the positioning rod is provided with a meshing part, which meshes with the meshing groove of the handle, and the other end of the positioning rod is provided with a plug, which matches the positioning hole.

3. A fluid connector with a locking spring tab according to claim 2, characterized in that, The fluid connector also includes a sealing ring, which is fixedly connected to the valve body and located on the mating surface of the valve body.

4. A fluid connector with a locking spring tab according to claim 3, characterized in that, The valve ball assembly includes a valve ball and a valve stem, the valve ball being rotatably mounted inside the valve body; the valve stem is fixedly connected to the valve ball and to the handle, and is located on top of the valve ball; the valve ball has a fluid passage that runs through the valve ball.

5. A fluid connector with a locking spring tab according to claim 4, characterized in that, The keyhole spring is V-shaped, and the connecting piece, locking piece and cylinder of the keyhole spring are integrally formed.

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