Valve core body capable of improving switching speed and valve body of valve core body

Abstract

The utility model provides a valve element body capable of increasing the opening and closing speed. When a valve rod rotates, the upward or downward moving speed of the valve rod can be increased, and therefore the opening and closing speed of water flow is increased. Comprising an installation base used for being connected with an external valve seat, a movable hole formed in the installation base in a penetrating mode, and a valve rod which is rotatably arranged on the installation base, located in the movable hole and used for rotating in the forward direction or the reverse direction on the installation base and located in the movable hole when driven by external force. The threaded surface is arranged on the peripheral side of the valve rod, is in threaded connection with the mounting seat and is used for enabling the valve rod to move downwards or upwards in the movable hole on the mounting seat when the valve rod rotates forwards or reversely in the movable hole on the mounting seat; and the threaded surfaces are four external threads which are spirally wound on the peripheral side of the valve rod and are used for accelerating the downward or upward movement of the valve rod in the movable hole on the mounting seat when the valve rod rotates forwards or reversely in the movable hole on the mounting seat.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve core body with improved switching speed and a valve body with the valve core body with improved switching speed. Background Art

[0002] Faucet is a popular name for water valve, which is used to control the size of water flow and has the effect of saving water. The replacement speed of faucets is very fast, from the old cast iron process to the electroplated knob type, and then to the stainless steel single temperature single control faucet, stainless steel double temperature double control faucet, and kitchen semi-automatic faucet. Now, more and more consumers will consider the material, function, shape and other aspects when purchasing faucets.

[0003] The valve core used in traditional faucets is usually a slow-opening type. When it is necessary to control water stopping or water opening, the valve stem needs to be turned multiple times to make the valve stem drop or rise to the required position. The lifting and lowering speed of the valve stem is slow when it rotates, and the speed of the valve stem moving downward or upward cannot be increased when the valve stem rotates, thereby failing to speed up the opening and closing speed of the water flow. Utility Model Content

[0004] The purpose of the utility model is to address the defects and shortcomings of the prior art and to provide a valve core body with increased switching speed and a valve body with a valve core body with increased switching speed, which can speed up the upward or downward movement of the valve stem when the valve stem rotates, thereby speeding up the opening and closing speed of the water flow.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve core body for improving the switching speed, comprising a mounting seat for connecting with an external valve seat, an active hole penetrating through the mounting seat, a valve stem rotatably arranged on the mounting seat and located in the active hole for being able to rotate forward or reversely on the mounting seat in the active hole when driven by an external force, and a threaded surface arranged on the circumference of the valve stem and threadedly connected to the mounting seat for allowing the valve stem to move downward or upward in the active hole on the mounting seat when the valve stem rotates forward or reversely in the active hole on the mounting seat, characterized in that the threaded surface is four external threads spirally wound and arranged on the circumference of the valve stem for accelerating the downward or upward movement of the valve stem in the active hole on the mounting seat when the valve stem rotates forward or reversely in the active hole on the mounting seat.

[0006] A further improvement is that the outer diameter of the external thread is 20.956 mm, the inner diameter is 9.794 mm, and the pitch is 1.814 mm.

[0007] A further improvement is that a sealing valve flap is provided at the lower end of the valve stem.

[0008] A further improvement is that a valve disc sealing gasket is arranged on the valve stem at the lower end of the sealing valve disc.

[0009] A further improvement is that a sealing member for improving the sealing performance between the valve stem and the mounting seat is provided in the movable hole between the valve stem and the mounting seat.

[0010] A further improvement is that the sealing member comprises a placement groove opened on the valve stem and a sealing ring arranged on the valve stem and located in the placement groove.

[0011] A further improvement is that the outer side surface of the mounting seat is provided with an external threaded surface for threaded connection with an external valve seat.

[0012] A further improvement is that a valve seat sealing gasket is provided on the mounting seat for improving the sealing performance between the mounting seat and the valve seat after the mounting seat is connected to the external valve seat.

[0013] A further improvement is that a driving hand wheel is provided on the valve stem to facilitate manual driving of the valve stem for rotation.

[0014] Based on the same inventive concept, the utility model also provides a valve body, including a valve body, a water inlet end and a water outlet end respectively arranged on the valve body and connected to the valve body, a valve seat arranged on the valve body between the water inlet end and the water outlet end, a flow hole opened on the valve seat and connected to the water inlet end and the water outlet end, and a valve core body arranged on the valve body and located within the valve seat, wherein the valve core body is a valve core body for improving the switching speed as described above.

[0015] After adopting the above technical scheme, the beneficial effect of the utility model is: through the threaded cooperation between the four external threads and the mounting seat, when the valve stem is driven to rotate forward or reverse, the speed of the valve stem moving downward or upward in the movable hole on the mounting seat is accelerated, thereby accelerating the opening and closing speed of the water flow.

[0016] Further effect: When the traditional threaded surface is applied to the valve stem, the valve stem needs to be rotated about four times to make the valve stem completely drop or rise to the required position, thereby closing or opening the flow hole. However, the valve stem with four external threads can be completely dropped or raised to the required position after rotating about half a turn, thereby closing or opening the moving hole, which can reduce the number of rotations of the valve stem and increase the speed of the valve stem closing and opening the flow hole.

[0017] Further effect: when the valve stem descends and drives the sealing valve disc to contact the valve seat, the flow hole can be blocked, and after the valve stem rises, the upper end of the sealing valve disc contacts the lower end surface of the mounting seat, thereby limiting the rise of the valve stem and blocking the lower end of the movable hole, reducing the phenomenon of water leakage caused by water flowing from the movable hole into the mounting seat in the fully open state.

[0018] Further effect: the valve disc sealing gasket can improve the sealing between the sealing valve disc and the valve seat when the sealing valve disc contacts the valve seat and blocks the flow hole to stop water.

[0019] Further effect: the sealing ring can seal the gap between the valve stem and the mounting seat when the valve core body is in the open state, thereby reducing the phenomenon of water flowing out from the gap between the valve stem and the mounting seat.

[0020] Further effect: the valve seat sealing gasket can seal the gap between the mounting seat and the valve seat on the valve body after the mounting seat and the valve seat are installed, thereby preventing water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a structural schematic diagram of the valve core body in the utility model;

[0023] Figure 2 This is a sectional view of the installation of the heavy valve core of the utility model;

[0024] Figure 3 This is a sectional view of the installation of the valve core body and the valve body in the utility model;

[0025] Figure 4 It corresponds to Figure 3 Another state diagram of ;

[0026] Figure 5 This is a schematic diagram of the installation of the valve core body, valve body, and driving hand wheel in the utility model;

[0027] Figure 6 It corresponds to Figure 5 Another structural schematic diagram of;

[0028] Figure 7 It is a top view cutaway view of the valve stem in the utility model.

[0029] Explanation of the accompanying drawings: mounting seat 1, movable hole 2, valve stem 3, external thread 4, sealing valve disc 5, valve disc sealing gasket 6, sealing ring 7, external thread surface 8, valve seat sealing gasket 9, driving hand wheel 10, valve body 11, water inlet end 12, water outlet end 13, valve seat 14, flow hole 15. DETAILED DESCRIPTION

[0030] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0031] See also Figures 1 to 7 As shown, the technical solution adopted in this specific embodiment is: a valve core body for improving the switching speed, including a mounting seat 1 for connecting with an external valve seat, an active hole 2 penetrating and opening on the mounting seat 1, a valve stem 3 rotatably arranged on the mounting seat 1 and located in the active hole 2, and capable of rotating forward or reversely on the mounting seat 1 and located in the active hole 2 when driven by an external force, and a threaded surface arranged on the circumference of the valve stem 3 and threadedly connected to the mounting seat 1, and capable of allowing the valve stem 3 to move downward or upward on the mounting seat 1 and located in the active hole 2 when the valve stem 3 rotates forward or reversely on the mounting seat 1 and located in the active hole 2, characterized in that: the threaded surface is a spirally wound arrangement arranged on the circumference of the valve stem 3, and is capable of accelerating the downward or upward movement of the valve stem 3 on the mounting seat 1 and located in the active hole 2 when the valve stem 3 rotates forward or reversely on the mounting seat 1 and located in the active hole 2. The four external threads 4 are equidistantly annularly around the circumference of the valve stem 3. The side wall of the mounting seat 1 is provided with four internal threads in the movable hole 2 for threading with the four external threads 4. The four external threads 4 and the four internal threads on the side wall of the mounting seat 1 form a four-part thread, which is different from the traditional thread surface with a single thread (single thread).

[0032] Opening and closing speeds are four times faster.

[0033] The outer diameter of the external thread 4 is 20.956 mm, the inner diameter is 9.794 mm, and the pitch is 1.814 mm. The outer diameter of the external thread 4 is 20.956 mm-21 mm, the inner diameter is 9.794 mm-9.8 mm, and the pitch is 1.814 mm-1.82 mm.

[0034] The lower end of the valve stem 3 is provided with a sealing valve flap 5. The diameter of the sealing valve flap 5 is larger than the diameter of the movable hole 2 and smaller than the outer diameter of the mounting seat 1.

[0035] A valve disc sealing gasket 6 is provided on the valve stem 3 at the lower end of the sealing valve disc 5 .

[0036] A sealing member for improving the sealing performance between the valve stem 3 and the mounting seat 1 is provided in the movable hole 2 between the valve stem 3 and the mounting seat 1 .

[0037] The sealing member includes a placement groove (not shown in the figure) opened on the valve stem 3 and a sealing ring 7 arranged on the valve stem 3 and located in the placement groove.

[0038] The outer side surface of the mounting seat 1 is provided with an external threaded surface 8 for threaded connection with an external valve seat.

[0039] The mounting seat 1 is provided with a valve seat sealing gasket 9 for improving the sealing performance between the mounting seat 1 and the valve seat after the mounting seat 1 is connected to the external valve seat.

[0040] The valve stem 3 is provided with a driving hand wheel 10 for facilitating manual driving of the valve stem 3 to rotate. The driving hand wheel 10 may be Figure 5 The circular hand wheel shown or Figure 6 The butterfly handle shown has a circular hand wheel with a plurality of anti-slip strips arranged around the side thereof.

[0041] Based on the same inventive concept, the utility model also provides a valve body, including a valve body 11, a water inlet 12 and a water outlet 13 respectively arranged on the valve body 11 and connected to the valve body 11, a valve seat 14 arranged on the valve body 11 between the water inlet 12 and the water outlet 13, a flow hole opened on the valve seat 14 and connected to the water inlet 12 and the water outlet 13, and a valve core body arranged on the valve body 11 and located in the valve seat 14, wherein the valve core body is a valve core body for improving the switching speed as described above. The valve body can be an angle valve, a faucet, a water stop valve, etc., and is connected to the valve seat 14 on the angle valve or the faucet through the external threaded surface 8 on the outer side of the mounting seat 1 on the valve core body. The structure of the angle valve and the faucet is the prior art and will not be described here.

[0042] The working principle of the utility model is as follows: after the mounting seat 1 is mounted on the valve seat 14 of the valve body 11 through the external threaded surface 8, the driving hand wheel 10 is turned by hand to drive the valve stem 3 to rotate. When the valve stem 3 rotates forward, the four external threads 4 accelerate the valve stem 3 to descend in the movable hole 2 on the mounting seat 1, thereby driving the sealing valve disc 5 to approach the end of the flow hole, closing the flow hole to prevent water from flowing out of the water outlet end 13. When the valve stem 3 rotates reversely, the four external threads 4 accelerate the valve stem 3 to rise in the movable hole 2 on the mounting seat 1, thereby driving the sealing valve disc 5 to move away from the end of the flow hole to open the flow hole, so that the valve stem 3 can be opened. The water flow can flow out from the water inlet end 12 to the water outlet end 13, and the cooperation of the four external threads 4 can speed up the opening and closing speed of the water flow; when the sealing valve disc 5 closes the flow hole, the valve disc sealing gasket 6 improves the sealing between the sealing valve disc 5 and the valve seat 14; the sealing ring 7 can seal the gap between the valve stem 3 and the mounting seat 1 when the valve core body is in the open state, thereby reducing the phenomenon of water flowing out from the gap between the valve stem 3 and the mounting seat 1; the valve seat sealing gasket 9 can seal the gap between the mounting seat 1 and the valve seat 14 after the mounting seat 1 and the valve seat 14 on the valve body 11 are installed, thereby preventing water leakage.

[0043] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above-mentioned function of the utility model can be selected and applied as a valve core body with improved switching speed and a valve body with a valve core body with improved switching speed. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of the utility model lies in the scientific combination of various components.

[0044] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A valve core body for improving the switching speed, comprising a mounting seat for connecting with an external valve seat, a movable hole penetrating through the mounting seat, a valve stem rotatably arranged on the mounting seat and located in the movable hole, and capable of rotating forward or reversely on the mounting seat and located in the movable hole when driven by an external force, and a threaded surface arranged on the circumference of the valve stem and threadedly connected to the mounting seat, and capable of allowing the valve stem to move downward or upward in the movable hole on the mounting seat when the valve stem rotates forward or reversely in the movable hole on the mounting seat, characterized in that: The threaded surface is four external threads spirally wound around the circumference of the valve stem and used to accelerate the downward or upward movement of the valve stem in the movable hole on the mounting seat when the valve stem rotates forward or reversely in the movable hole on the mounting seat.

2. A valve core body for improving switching speed according to claim 1, characterized in that: The outer diameter of the external thread is 20.956 mm, the inner diameter is 9.794 mm, and the pitch is 1.814 mm.

3. The valve core body for improving the switching speed according to claim 1, characterized in that: A sealing valve disc is arranged at the lower end of the valve stem.

4. A valve core body for improving switching speed according to claim 3, characterized in that: A valve disc sealing gasket is arranged on the valve stem at the lower end of the sealing valve disc.

5. The valve core body for improving switching speed according to claim 1, characterized in that: A sealing member for improving the sealing performance between the valve stem and the mounting seat is arranged in the movable hole between the valve stem and the mounting seat.

6. A valve core body for improving switching speed according to claim 5, characterized in that: The sealing component comprises a placement groove opened on the valve stem and a sealing ring arranged on the valve stem and located in the placement groove.

7. The valve core body for improving switching speed according to claim 1, characterized in that: The outer side surface of the mounting seat is provided with an external threaded surface for threaded connection with an external valve seat.

8. The valve core body for improving switching speed according to claim 1, characterized in that: The mounting seat is provided with a valve seat sealing gasket for improving the sealing performance between the mounting seat and the valve seat after the mounting seat is connected to the external valve seat.

9. The valve core body for improving switching speed according to claim 1, characterized in that: The valve stem is provided with a driving hand wheel which is convenient for the valve stem to be driven by hand to rotate.

10. A valve body, characterized in that: It includes a valve body, a water inlet end and a water outlet end respectively arranged on the valve body and connected to the valve body, a valve seat arranged on the valve body and located between the water inlet end and the water outlet end, a flow hole opened on the valve seat and connected to the water inlet end and the water outlet end, and a valve core body arranged on the valve body and located in the valve seat, wherein the valve core body is a valve core body for increasing the switching speed as described in any one of claims 1 to 9.

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