Integrated injection molding ball valve

Abstract

The utility model discloses an integrated injection molding ball valve which comprises a valve body, an integrated valve element valve rod and a handle, the integrated valve element valve rod is composed of a valve element and a valve rod, the valve element is located in the valve body, an annular groove is formed in the position, located on the edge of the valve rod, of the valve body, a sealing assembly is arranged in the annular groove, and a linear insertion opening extending vertically is formed in the top of the valve rod. A mounting through hole matched with the linear insertion opening is formed in the handle, the handle is arranged on the valve rod in a sleeving mode through the mounting through hole, the top of the valve rod is connected with a compression nut in a penetrating and threaded mode, the compression nut is located above the handle, and the bottom end of the handle abuts against the sealing assembly; through cooperation of the compression nut, the mounting through hole and the linear insertion opening, the connecting structure of the handle and the valve rod is improved, the sealing assembly is compressed, and the sealing performance of the ball valve is improved.

Description

Technical Field

[0001] The utility model relates to an integrated injection-molded ball valve. Background Art

[0002] At present, ball valves have been widely used in civil fields as well as industrial fields such as petroleum and chemical industry. After long-term use, repeated opening and closing of ball valves can easily cause the handle to separate from the valve stem and the sealing gasket to move, thus causing damage and water leakage, which not only wastes water resources but also increases economic burden. Summary of the invention

[0003] The utility model aims to provide an integrated injection molded ball valve, comprising a valve body, an integrated valve core valve stem and a handle, wherein the integrated valve core valve stem is composed of a valve core and a valve stem, the valve core is located in the injection molded valve body, an annular groove is provided on the valve body at the edge of the valve stem, a sealing assembly is provided in the annular groove, a vertically extending I-shaped socket is provided on the top of the valve stem, a mounting through hole matching the I-shaped socket is provided inside the handle, the handle is sleeved on the valve stem through the mounting through hole, the top of the valve stem passes through the mounting through hole and is threadedly connected with a clamping nut, the clamping nut is located above the handle, and the bottom end of the handle is pressed against the sealing assembly.

[0004] Preferably, the sealing assembly comprises a sealing gasket and a pressure ring which are sleeved on the valve stem, the sealing gasket is located in the annular groove, the lower end of the pressure ring is in contact with the sealing gasket, and the upper end of the pressure ring is in contact with the handle.

[0005] Preferably, a transverse connecting plate is provided in the mounting through hole, and the transverse connecting plate is plugged into the I-shaped socket, and a downward pressure gap is left between the transverse connecting plate and the bottom surface of the I-shaped socket.

[0006] Preferably, the top of the valve stem protruding from the handle is provided with an external thread, and the external threaded portion of the valve stem is threadedly connected to a clamping nut.

[0007] Preferably, the valve core and valve stem of the integrated valve core valve stem are integrally formed as a whole.

[0008] The advantages and beneficial effects of the utility model are: providing an integrated injection-molded ball valve, which presses the handle onto the sealing assembly through a clamping nut, so that the sealing gasket of the sealing assembly is subjected to increased force and is evenly stretched, thereby improving the sealing performance of the ball valve; wherein, the special cooperation between the mounting through hole of the cross-connecting plate in the handle and the I-shaped socket of the valve stem effectively prevents the clamping nut from rotating when the handle is turned, thereby ensuring the sealing performance of the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the utility model.

[0010] Figure 2 It is a disassembly schematic diagram of the utility model.

[0011] Figure 3 It is a top view schematic diagram of the handle in the utility model. DETAILED DESCRIPTION

[0012] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0013] The technical solution specifically implemented in this utility model is:

[0014] like Figures 1 to 3 As shown, an integrated injection molded ball valve comprises a valve body 1, an integrated valve core valve stem 2 and a handle 3, wherein the integrated valve core valve stem 2 consists of a valve core 4 and a valve stem 5, the valve core 4 is located in the injection molded valve body 1, an annular groove 6 is provided on the valve body 1 at the edge of the valve stem 5, a sealing assembly 7 is provided in the annular groove 6, a vertically extending straight-line socket 8 is provided on the top of the valve stem 5, a mounting through hole 9 matching the straight-line socket 8 is provided inside the handle 3, the handle 3 is sleeved on the valve stem 5 through the mounting through hole 9, the top of the valve stem 5 passes through the mounting through hole 9 and is threadedly connected with a clamping nut 10, the clamping nut 10 is located above the handle 3, and the bottom end of the handle 3 is tightly pressed against the sealing assembly 7.

[0015] The sealing assembly 7 includes a sealing gasket 11 and a pressure ring 12 which are sleeved on the valve stem 5 . The sealing gasket 11 is located in the annular groove 6 . The lower end of the pressure ring 12 is in contact with the sealing gasket 11 , and the upper end of the pressure ring 12 is in contact with the handle 3 .

[0016] A transverse connecting plate 13 is provided in the installation through hole 9 , and the transverse connecting plate 13 is plugged into the I-shaped socket 8 , and a downward pressing gap 14 is left between the transverse connecting plate 13 and the bottom surface of the I-shaped socket 8 .

[0017] The top of the valve stem 5 protruding from the handle 3 is provided with an external thread, and the external thread portion of the valve stem 5 is threadedly connected to the clamping nut 10 .

[0018] The valve core 4 and the valve stem 5 of the integrated valve core and valve stem 2 are integrally formed as a whole.

[0019] The advantages and beneficial effects of the utility model are: providing an integrated injection-molded ball valve, in which the handle 3 is pressed against the sealing assembly 7 by the clamping nut 10, so that the sealing gasket 11 of the sealing assembly 7 is subjected to increased force and is evenly stretched, thereby improving the sealing performance of the ball valve; wherein, the special cooperation between the mounting through hole 9 of the cross-connecting plate 13 in the handle 3 and the I-shaped socket 8 of the valve stem 5 effectively prevents the situation in which the clamping nut 10 is driven to rotate when the handle 3 is turned, thereby ensuring the sealing performance of the sealing gasket 11.

[0020] A valve body 1 is formed on the outside of the valve core 4 of the integrated valve core valve stem 2 through an injection molding process, a sealing gasket 11 and a pressure ring 12 are installed in the annular groove 6 of the valve body 1, the pressure ring 12 extends out of the annular groove, the handle 3 is sleeved on the valve stem 5 through the mounting through hole 9, the cross-connecting plate 13 of the mounting through hole 9 is plugged into the I-shaped socket 8 of the valve stem 5, and then the clamping nut 10 is tightened on the upper end of the valve stem 5, so that the clamping nut 10 presses the handle 3 on the pressure ring 12, and the pressure ring 12 presses the sealing gasket 11 in the annular groove 6, thereby improving the sealing performance of the ball valve, effectively preventing the situation that the clamping nut 10 will be driven to rotate when the handle 3 is turned, and ensuring the sealing performance of the sealing gasket 11.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An integrated injection molded ball valve, comprising a valve body, an integrated valve core and a valve stem, and a handle, wherein the integrated valve core and the valve stem are composed of a valve core and a valve stem, and is characterized in that: The valve core is located in an injection-molded valve body, an annular groove is provided on the valve body at the edge of the valve stem, a sealing assembly is provided in the annular groove, a vertically extending I-shaped socket is provided on the top of the valve stem, a mounting through hole matching the I-shaped socket is provided inside the handle, the handle is sleeved on the valve stem through the mounting through hole, the top of the valve stem passes through the mounting through hole and is threadedly connected with a clamping nut, the clamping nut is located above the handle, and the bottom end of the handle is pressed against the sealing assembly.

2. The one-piece injection molded ball valve according to claim 1, characterized in that: The sealing assembly comprises a sealing gasket and a pressure ring which are sleeved on the valve stem. The sealing gasket is located in the annular groove. The lower end of the pressure ring contacts the sealing gasket, and the upper end of the pressure ring abuts against the handle.

3. The one-piece injection molded ball valve according to claim 2, characterized in that: A transverse connecting plate is arranged in the installation through hole, and the transverse connecting plate is plugged into the straight-line socket, and a downward pressure gap is left between the transverse connecting plate and the bottom surface of the straight-line socket.

4. The one-piece injection-molded ball valve according to claim 3, characterized in that: The top of the valve stem protruding from the handle is provided with an external thread, and the external thread portion of the valve stem is threadedly connected with a clamping nut.

5. The one-piece injection-molded ball valve according to claim 4, characterized in that: The valve core and valve stem of the integrated valve core and valve stem are integrally formed as a whole.

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