Valve element with gears during closing

Abstract

A valve element with gears during closing comprises a base, an element shell, a driving piece, a movable ceramic piece, a static ceramic piece, a spring and a gear piece, the spring is arranged in a device hole, a rod part is inserted into the spring, and a bullet-shaped part is matched with one end of the spring; the valve rod and the valve rod channel are rotationally matched and sealed, the transmission disc is attached to and rotationally matched with a top plate of the valve element cavity, the radial strip-shaped base rotates in the control cavity between the two arc-shaped limiting protrusions, and the end of the bullet-shaped part is matched with the gear groove. The pin plate is inserted into the pin plate groove, the transmission disc, the movable ceramic piece, the static ceramic piece and the base are stacked, the movable ceramic piece corresponds to the radial cold water hole and the radial hot water hole, the axial protrusion is embedded into the axial groove in the valve element cavity, and the head of the base is inserted into the lower end of the valve element cavity. A cold water inlet hole and a hot water inlet hole in the core shell are formed in the same plane, a fan-shaped cold water groove and a fan-shaped hot water groove are formed in the movable ceramic plate, and the size is small; the blocking piece is matched with the blocking groove, the radial strip-shaped base and the arc-shaped protrusion are matched for stopping, and the protection effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cold water hot water mixing valve core. BACKGROUND

[0002] The prior art, Chinese patent 202221959270.1, a mixed water temperature regulating valve core with side water inlet and water outlet, which comprises a valve core shell, a valve stem, a dynamic ceramic sheet, a static ceramic sheet and a fastening water outlet seat, the valve stem comprises a stem body part, a rotating sealing part, a circular guide disc, a circular ring-shaped water guide plate, two circular arc-shaped pin plates provided on a circular seat plate and two longitudinal circular arc-shaped plates, the circular guide disc is rotationally connected with the end plate of the closed end of the valve core shell, the circular ring-shaped water guide plate is rotationally connected with the inner cavity of the valve core shell and is sealed, the circular arc-shaped pin plates are inserted into the pin plate grooves, and the fastening water outlet seat is inserted into the inner cavity of the valve core shell and is sealed, and the outer thread part and the inner thread part are screwed together. The structure of the valve stem, the water inlet of the dynamic ceramic sheet matched with the valve stem, the dynamic ceramic sheet and the static ceramic sheet matched, the mixing of cold water and hot water in the fan-shaped mixed water hole of the static ceramic sheet, and the outflow of the fastening water. The problems are: large volume, high difference between cold water and hot water, no stop position indication or feeling when closed. SUMMARY

[0003] The utility model aims at: provide a valve core with stop position when closed, which has small volume, stop position when closed and indication.

[0004] The utility model is realized in this way: a valve core with stop position when closed, which is characterized by comprising a base, a core shell, a driving part, a dynamic ceramic sheet, a static ceramic sheet, a spring and a stop part,

[0005] The base is provided with a circular mixed water outlet hole along the axis;

[0006] The core shell comprises a valve stem channel, a control cavity and a valve core cavity, the inner wall of the control cavity is provided with two circular arc-shaped limiting protrusions and a stop slot, and the valve core cavity is provided with a radial cold water hole and a radial hot water hole;

[0007] The driving part comprises a driving rod, a valve stem, a transmission disc, a pin plate provided on the transmission disc and a radial strip-shaped seat, and the radial strip-shaped seat is provided with an open-ended device hole;

[0008] The dynamic ceramic sheet comprises a pin plate groove provided on the upper surface, a fan-shaped cold water groove and a fan-shaped hot water groove provided on the lower surface, and the fan-shaped cold water groove and the fan-shaped hot water groove have radial openings and lower openings respectively;

[0009] The static ceramic sheet is provided with a fan-shaped cold water guide hole, a fan-shaped hot water guide hole and an axial protrusion;

[0010] The stop part comprises a bullet-shaped part and a rod part;

[0011] The spring is arranged in the device hole, the rod part is inserted into the spring, the bullet head part is matched with one end of the spring, the valve rod is rotationally matched and sealed with the valve rod channel, the transmission disc is matched and rotationally matched with the top plate of the valve core cavity, the radial strip-shaped seat is rotationally arranged in the two arc-shaped limiting protrusions, the end of the bullet head part is matched with the gear slot, the pin plate is inserted into the pin plate slot, the transmission disc, the dynamic ceramic sheet, the static ceramic sheet and the base are stacked, the dynamic ceramic sheet is corresponded with the radial cold water hole and the radial hot water hole, the axial protrusion is embedded into the axial slot in the valve core cavity, and the head of the base is inserted into the lower end of the valve core cavity.

[0012] The special feature is that the upper surface of the transmission disc is provided with steps,

[0013] Further comprising a wear-resistant ring, the wear-resistant ring is arranged on the steps, and the wear-resistant ring is matched with the top plate of the valve core cavity.

[0014] The special feature is that the dynamic ceramic sheet is in a waist shape, and the fan-shaped cold water groove and the fan-shaped hot water groove are arranged on the plane side of the dynamic ceramic sheet respectively.

[0015] Further comprising a sound-absorbing piece made of plastic, the sound-absorbing piece comprises a circular seat plate, a through hole and a waist-shaped clamping groove, and the lower end of the sidewall plate on the two sides of the waist-shaped clamping groove is provided with a sound-absorbing rod.

[0016] The dynamic ceramic sheet is embedded into the waist-shaped clamping groove, the transmission disc is matched with the circular seat plate, the pin plate passes through the through hole, and the sound-absorbing rod is opposite to the fan-shaped cold water groove and the fan-shaped hot water groove.

[0017] The special feature of the valve core with gears when closed is that the valve rod is provided with an annular groove, and the annular groove is provided with a sealing ring.

[0018] The utility model discloses a valve core with gears when closed, the cold water inlet hole and the hot water inlet hole on the core shell are on the same plane, the dynamic ceramic sheet is provided with a fan-shaped cold water groove and a fan-shaped hot water groove, realizes small size, the gear part is matched with the gear slot, the radial strip-shaped seat and the arc-shaped protrusion are matched and stop, and the protection effect is achieved. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the sectional view of the utility model.

[0020] Figure 2 It is the A-A view of Figure 1

[0021] Figure 3 It is the B-B view of Figure 1

[0022] Figure 4 It is the perspective view of the utility model.

[0023] Figure 5 It is one of the perspective exploded view of the utility model. ​​

[0024] Figure 6 Figure 2 is a perspective view of the utility model. DETAILED DESCRIPTION

[0025] The embodiments of the utility model will be described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as a limitation of the utility model.

[0026] In the description of the utility model, it is necessary to explain that, unless explicitly defined and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] As shown in Figure 1 , Figure 2 A valve core with gear position when closing, as shown in a kind of, including base 1, core shell 2, driving part 3, dynamic ceramic sheet 4, static ceramic sheet 5, spring 6 and gear position piece 7,

[0028] Base 1 is equipped with circular water mixing outlet hole 1A along the axis;

[0029] Core shell 2 includes valve stem passage 21, control cavity 22 and valve core cavity 23, two arc-shaped limit protrusions 221 and gear position groove 222 are equipped on the inner wall of control cavity 22, and valve core cavity 23 is equipped with radial cold water hole 231 and radial hot water hole 232;

[0030] Driving part 3 includes driving rod 31, valve stem 32, transmission disc 33, pin plate 34 equipped on transmission disc 33 and radial strip seat 35, radial strip seat 35 is equipped between valve stem part 72 and transmission disc, and radial strip seat 35 is equipped with one end opening device hole 351;

[0031] Dynamic ceramic sheet 4 includes pin plate groove 41 equipped on upper surface, fan-shaped cold water groove 42 equipped on lower surface and fan-shaped hot water groove 43, fan-shaped cold water groove 42 and fan-shaped hot water groove 43 have radial opening and lower opening respectively;Fan-shaped cold water groove 42 and fan-shaped hot water groove 43 are on a diameter line;

[0032] Static ceramic sheet 5 is equipped with fan-shaped cold water guide hole 51, fan-shaped hot water guide hole 52 and two axial protrusions 53;Fan-shaped cold water guide hole 51, fan-shaped hot water guide hole 52 and two axial protrusions 53 are on a diameter line;

[0033] The stopper 7 comprises a bullet-shaped part 71 and a rod part 72;

[0034] The spring 6 is arranged in the device hole 351, the rod part 72 is inserted into the spring 6, the bullet-shaped part 71 is matched with one end of the spring 6, the valve rod 32 is rotationally matched and sealed with the valve rod channel 21, the transmission disc 33 is matched and rotationally matched with the top plate of the valve core cavity 23, the radial strip-shaped seat 35 is rotationally matched in the control cavity 22 between the two circular arc-shaped limiting protrusions 221, the radial strip-shaped seat 35 is matched and stopped with the circular arc-shaped limiting protrusion 221, the end of the bullet-shaped part 71 is matched with the stop groove 222, the pin plate 34 is inserted into the pin plate groove 41, the transmission disc 33, the dynamic ceramic sheet 4, the static ceramic sheet 5 and the base are sequentially stacked, the dynamic ceramic sheet 4 corresponds to the radial cold water hole 231 and the radial hot water hole 232, the axial protrusion 53 is embedded in the axial groove 233 in the valve core cavity 23, and the head of the base 1 is inserted into the lower end of the valve core cavity 23. The fan-shaped cold water guide hole 51, the fan-shaped hot water guide hole 52 and the circular mixed water outlet hole 1A are communicated.

[0035] Figure 1 、 Figure 2 、 Figure 3 is a view in the closed state of the utility model, the diameter line where the fan-shaped cold water groove 42 and the fan-shaped hot water groove 43 are located is perpendicular to the diameter line where the fan-shaped cold water guide hole 51 and the fan-shaped hot water guide hole 52 are located; the dynamic ceramic sheet 4 closes the fan-shaped cold water guide hole 51 and the fan-shaped hot water guide hole 52; the end of the bullet-shaped part 71 is embedded in the stop groove 222,

[0036] As shown in Figure 3 , the driving part 3 is rotated counterclockwise, and the dynamic ceramic sheet 4 is rotated with the driving part 3; in the process of rotation, the fan-shaped cold water groove 42 and the fan-shaped hot water groove 43 respectively gradually increase the contact area with the fan-shaped cold water guide hole 51 and the fan-shaped hot water guide hole 52, and the cold water volume and the hot water volume are simultaneously increased; when the maximum water volume is reached, the radial strip-shaped seat is matched and stopped with one circular arc-shaped limiting protrusion 221;

[0037] When the on state is converted into the closed state, the driving part 3 and the dynamic ceramic sheet 4 are rotated clockwise together until the radial strip-shaped seat is matched and stopped with another circular arc-shaped limiting protrusion 221, and the bullet-shaped part 71 is matched with the stop groove 222 to emit a sound.

[0038] As a further improvement of the utility model: the upper surface of the transmission disc 33 is provided with steps 331,

[0039] Further comprising a wear-resistant ring 8, the wear-resistant ring 8 is arranged on the steps 331, and the wear-resistant ring 8 is matched with the top plate of the valve core cavity 23.

[0040] As a further improvement of the utility model: the dynamic ceramic sheet 4 is in the shape of a waist, and the fan-shaped cold water groove 42 and the fan-shaped hot water groove 43 are respectively arranged on the planar side of the dynamic ceramic sheet 4;

[0041] The sound-damping piece 9 is made of plastic and comprises a circular seat plate 91, a through hole 92 and a waist-shaped clamping groove 93, and the lower end of the sidewall plate of the waist-shaped clamping groove 93 is provided with a sound-damping rod 94;

[0042] The dynamic ceramic sheet 4 is embedded in the waist-shaped clamping groove 93, the transmission disc 33 is attached to the circular seat plate 91, the pin plate 34 passes through the through hole 92, and the sound-damping rod 94 is opposite to the fan-shaped cold water groove 42 and the fan-shaped hot water groove 43.

[0043] As a further improvement of the utility model: the valve rod 32 is provided with an annular groove, and a sealing ring is arranged in the annular groove.

[0044] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A shut-off time indexed spool, characterized by: The valve comprises a base, a core shell, a driving member, a dynamic ceramic sheet, a static ceramic sheet, a spring and a stop member, The base is provided with a circular water mixing and discharging hole; The core shell comprises a valve rod channel, a control cavity and a valve core cavity, the inner wall of the control cavity is provided with two arc-shaped limiting protrusions and a stop slot, and the valve core cavity is provided with a radial cold water hole and a radial hot water hole; The driving member comprises a driving rod, a valve rod, a transmission disc, a pin plate provided on the transmission disc and a radial strip-shaped seat, and the radial strip-shaped seat is provided with a device hole with an open end; The dynamic ceramic sheet comprises a pin plate slot provided on the upper surface, a fan-shaped cold water groove and a fan-shaped hot water groove provided on the lower surface, and the fan-shaped cold water groove and the fan-shaped hot water groove respectively have a radial opening and a lower opening; The static ceramic sheet is provided with a fan-shaped cold water guide hole, a fan-shaped hot water guide hole and an axial protrusion; The stop member comprises a bullet-shaped part and a rod part; The spring is arranged in the device hole, the rod part is inserted into the spring, and the bullet-shaped part cooperates with one end of the spring; the valve rod is rotationally matched with the valve rod channel and is sealed, the transmission disc is attached to the top plate of the valve core cavity and is rotationally matched, the radial strip-shaped seat is rotationally controlled in the control cavity between the two arc-shaped limiting protrusions, and the end of the bullet-shaped part is matched with the stop slot; The pin plate is inserted into the pin plate slot, the transmission disc, the dynamic ceramic sheet, the static ceramic sheet and the base are stacked, the dynamic ceramic sheet corresponds to the radial cold water hole and the radial hot water hole, the axial protrusion is embedded in the axial slot in the valve core cavity, and the head of the base is inserted into the lower end of the valve core cavity.

2. A valve trim with closed ports according to claim 1, characterized in that: The upper surface of the transmission disc is provided with a step, Further comprising a wear-resistant ring, the wear-resistant ring is arranged on the step and is attached to the top plate of the valve core cavity.

3. A valve trim with a closed position having a notch according to claim 1 or 2, characterized in that: The dynamic ceramic sheet is in a waist shape, and the fan-shaped cold water groove and the fan-shaped hot water groove are respectively arranged on the planar sides of the dynamic ceramic sheet; Further comprising a plastic-made sound-damping member, the sound-damping member comprises a circular seat plate, a through hole and a waist-shaped clamping groove, and the lower end of the sidewall plate on both sides of the waist-shaped clamping groove is provided with a sound-damping rod; The dynamic ceramic sheet is embedded in the waist-shaped clamping groove, the transmission disc is attached to the circular seat plate, the pin plate passes through the through hole, and the sound-damping rod is opposite to the fan-shaped cold water groove and the fan-shaped hot water groove.

4. A valve trim with closed ports according to claim 1, characterized in that: The valve rod is provided with an annular groove, and a sealing ring is arranged in the annular groove.

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