Integrated PPR (polypropylene random) ball valve with embedded handle, cap, fixed valve core and valve rod

Abstract

The utility model belongs to the technical field of valve manufacturing, and relates to a ball valve, in particular to a handle embedded type nut cap fixing valve element and valve rod integrated PPR ball valve which comprises a valve body, an integrated valve element and valve rod, a handle, a nut cap, a sealing ring and a valve body sealing gasket. A valve body sealing gasket is installed in a valve rod part connecting groove, exposed out of the valve body, of the integrated valve element valve rod, a handle fixing clamp is arranged in the handle, and handle fixing clamping grooves are formed in the front face and the rear face of the integrated valve element valve rod, so that the situation that the handle and the valve rod are prone to falling off and being damaged is improved, the structural strength of the handle is enhanced, and downward pressure is larger and firmer; the nut cap fixing clamp is installed in the nut cap fixing clamping groove, the clamping groove protruding resistance joint fixes the nut cap and prevents the nut cap from loosening and falling off, the nut cap fixing clamp limits the handle fixing clamp in the handle fixing clamping groove, the handle is stably fixed and cannot fall off, the nut cap tightly presses the nut cap circular clamping groove, and the internal structure is protected against corrosion and oxidation.

Description

Technical Field

[0001] This utility model belongs to the field of ball valve manufacturing technology, and relates to a ball valve, specifically a PPR ball valve with an integrated handle, embedded cap, fixed valve core, and valve stem. Background Technology

[0002] Currently, PPR ball valves are widely used in civilian applications as well as in industrial sectors such as petroleum and chemical industries. However, repeated switching during equipment use and farmland irrigation can easily cause the handle to loosen, metal parts to corrode, and seals and switching functions to be damaged. Summary of the Invention

[0003] In view of the shortcomings of existing technologies and structures, the purpose of this utility model is to provide a PPR ball valve with good sealing performance and more stable structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a PPR ball valve with an embedded handle and cap for fixing the valve core and stem, comprising a valve body, an integrated valve core and stem, a handle, and a cap; sealing rings are installed on both sides of the valve body and the integrated valve core and stem; a valve body sealing groove is provided at the connection between the handle and the valve body and the integrated valve core and stem; a valve body sealing gasket is provided in the valve body sealing groove; a handle fixing clip is provided in the central circular hole of the handle; a cap hole is provided at the top of the handle; and a handle rotation switch limit clip is provided at the bottom of the handle. The cap has a cap fixing clip at the bottom; the integrated valve core and valve stem have handle fixing slots on both sides to fix the handle and press the valve body sealing gasket in the valve body sealing groove to achieve a seal; the cap fixing slots on both sides of the integrated valve core and valve stem combine with the cap fixing clips on the cap and are fixed by the groove protrusion resistance joint in the integrated valve core and valve stem cap fixing slots; the top of the cap and the top of the handle are tightly covered by the cap circular slot to achieve a seal; the bottom of the handle rotary switch limit card is connected to the rotary switch limit base on the top of the valve body to control the flow switch size of the ball valve.

[0005] By adopting the above technical solutions: the ball valve no longer has any metal parts, which enhances its corrosion resistance; the rotary switch of the handle does not affect the pressure on the valve body sealing gasket, thus improving the ball valve's sealing performance; the cap fixing clip is fixed by the resistance joint of the groove and is not easy to fall off, thus improving the ball valve's durability.

[0006] The present invention is further configured such that: the handle is mechanically pressurized to tighten the valve body sealing gasket, and under this tightened state, the handle is rotated to allow the handle fixing clip to enter the handle fixing clip groove on the integrated valve core and valve stem.

[0007] By adopting the above technical solution: after the handle is subjected to mechanically increased pressure, the handle fixing clip keeps the handle position fixed. By replacing the valve body sealing gasket of different specifications, the sealing performance can be adjusted. In order to meet different usage scenarios, switching frequency and sealing requirements, a variety of specifications are manufactured to be more suitable for different scenarios.

[0008] The present invention is further configured such that: after assembling the integrated valve core and valve stem with the sealing rings on both sides, it is placed in the valve body mold and injection molded under high pressure, forming an integral part of the valve body.

[0009] By adopting the above technical solutions, the sealing ring is more robust and fits tightly to the integrated valve core, valve stem, and valve body, resulting in better sealing and greater durability.

[0010] The present invention is further configured such that: after the handle fixing clip is correctly inserted, the cap fixing clip is placed into the cap fixing clip groove, and the cap is pressed tightly so that the cap is completely inserted into the cap circular clip groove at the top of the handle, so that the clip protrusion resistance joint in the integrated valve core valve stem cap fixing clip groove fixes the cap.

[0011] By adopting the above technical solution: the cap and handle achieve partial sealing, protect the internal structure from corrosion and oxidation, and the cap fixing clip is more firmly fixed after being resisted by the groove protrusion, so that the cap will not fall off, the handle will not loosen, and the service life of the ball valve is increased. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] The attached diagram shows the following components and their corresponding names: 1-valve body, 2-handle, 3-integrated valve core and stem, 4-cap, 5-sealing ring, 6-valve body gasket, 11-handle retainer, 13-cap retainer, 14-rotary switch limit base.

[0014] Figure 2 This is a front view of the integrated valve core and valve stem of this utility model.

[0015] The attached diagram shows the markings and corresponding component names: 7-cap fixing slot, 8-handle fixing slot.

[0016] Figure 3 This is a rear view of the integrated valve core and valve stem of this utility model.

[0017] The attached diagram shows the following markings and corresponding component names: 3-integrated valve core and stem, 9-slotted protruding resistance joint.

[0018] Figure 4 This is a side view of the integrated valve core and valve stem of this utility model.

[0019] The attached diagram shows the markings and corresponding component names: 8-Handle fixing slot.

[0020] Figure 5 This is a top view of the integrated valve core and valve stem of this utility model.

[0021] The attached diagram shows the following part name: 7-Cap fixing slot.

[0022] Figure 6 This is a top view of the handle of this utility model.

[0023] The attached diagram shows the following markings and corresponding component names: 2-handle, 10-round cap slot, 11-handle retaining clip.

[0024] Figure 7 This is a bottom view of the handle of this utility model.

[0025] The attached diagram shows the following markings and corresponding component names: 2-handle, 12-handle rotary switch limit card.

[0026] Figure 8 This is a front view of the cap of this utility model.

[0027] The attached diagram shows the markings and corresponding component names: 4-cap, 13-cap fixing clip.

[0028] Figure 9 This is a top view of the cap of this utility model.

[0029] The attached diagram shows the following part designation: 4-Cap.

[0030] Figure 10 This is a bottom view of the cap of this utility model.

[0031] The attached diagram shows the markings and corresponding component names: 4-cap, 13-cap fixing clip. Detailed Implementation

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 An embodiment of the present invention will be further described.

[0033] A PPR ball valve with an embedded handle and cap for fixing the valve core and valve stem includes an integrated valve core and valve stem 3, a sealing ring 5, which are placed together in the valve body mold of a PPR injection molding machine. The valve body 1 is formed by high-pressure injection molding of PPR, which wraps the integrated valve core and valve stem 3 and the sealing gasket 5 and fits them tightly. The valve body is then placed to cool down and increase its hardness.

[0034] The valve body 1, the integrated valve core and valve stem 3, and the sealing ring 5 form a whole. The valve body sealing gasket 6 is installed in the valve body sealing groove. The handle 2 uses mechanical pressure to make the handle fixing clip 11 pass through the cap fixing groove 7 and then be installed in the handle fixing clip groove 8, pressing the valve body sealing gasket 6 to achieve valve body sealing.

[0035] The cap 4 uses mechanical pressure to force the cap fixing clip 13 into the cap fixing clip groove 7 to the bottom. The groove protrusion resistance joint 9 fixes the cap fixing clip 13 to prevent the cap 4 from springing back. The cap 4 presses the cap circular clip groove 10 to protect the internal structure from corrosion and oxidation.

[0036] The bottom handle rotation switch limit card 12 of the handle 2 is connected to the rotation switch limit base 14 at the top of the valve body 1 to control the handle rotation switch angle and the ball valve flow rate.

[0037] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A PPR ball valve with an integrated handle, embedded cap, and fixed valve core / stem, characterized in that: The integrated valve core and valve stem (3) and the sealing ring (5) are installed into the valve body (1) by a PPR injection molding machine. The valve body sealing gasket (6) is installed at the valve stem part of the integrated valve core and valve stem (3) exposed in the valve body (1). The handle (2) is fixed by the handle fixing clip (11) and the handle fixing clip groove (8) on the integrated valve core and valve stem (3) and the valve body sealing gasket (6) is pressed and sealed. The cap fixing clip (13) on the cap (4) is installed into the cap fixing clip groove (7) on the integrated valve core and valve stem (3), and the bottom of the cap fixing clip (13) is used to lock the groove protrusion resistance joint (9) in the cap fixing clip groove (7). At the same time, the top of the cap (4) and the top cap circular clip groove (10) of the handle (2) are sealed together. The bottom handle rotary switch limit clip (12) of the handle (2) is connected to the rotary switch limit base (14) on the top of the valve body (1).

2. The integrated PPR ball valve with handle embedded cap and fixed valve core and valve stem as described in claim 1, characterized in that: The integrated valve core and valve stem (3) are a single unit. The valve stem part has a cap fixing groove (7), a groove protrusion resistance joint (9), and a handle fixing groove (8).

3. The integrated PPR ball valve with handle embedded cap and fixed valve core and valve stem as described in claim 1, characterized in that: The handle (2) is fixed by the handle fixing clip (11) and the handle fixing clip groove (8) on the integrated valve core valve stem (3), and the valve body sealing gasket (6) is pressed and sealed.

4. The integrated PPR ball valve with handle embedded cap and fixed valve core and valve stem as described in claim 1, characterized in that: The cap fixing clip (13) on the cap (4) is installed into the cap fixing clip groove (7) on the integrated valve core valve stem (3), and the bottom of the cap fixing clip (13) is used to lock the groove protrusion resistance joint (9) in the cap fixing clip groove (7) to prevent the cap (4) from falling off under force. At the same time, the top of the cap (4) is tightly closed with the top cap circular clip groove (10) of the handle (2) to achieve a seal.

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