CN203686291U - Time delay valve element with normally-open function - Google Patents

Abstract

The utility model discloses a time-delay valve core with a normally open function, which comprises a fixed part, a mandrel assembly, a lifting block and an adjustment shaft assembly. When the mandrel assembly is in the normally closed position, the mandrel assembly cooperates with the low position of the lifting block, and when the mandrel assembly is in the normally open position, it cooperates with the high position of the lifting block. The adjusting shaft assembly slides between the sealing position of sealing the water hole so that the water inlet and the water outlet are not connected, and the connecting position of leaving the water hole so that the water inlet and the water outlet are connected, and the mandrel assembly is normally closed position, the adjusting shaft assembly is in the sealing position, and when the mandrel assembly is in the normally open position or the time-delay position, the adjusting shaft assembly is in the on position. The valve core has two functions of delayed water discharge and continuous water discharge at the same time, and has a compact structure; when the mandrel assembly is turned, only the lifting block is driven to slide, and the mandrel assembly itself does not move up and down. It is convenient to switch between the normally open and normally closed positions, saving Save time and effort.

Description

A time-delay spool with normally open function

technical field

The utility model relates to a time-delay valve core with a normally open function.

Background technique

As we all know, ordinary faucets only have the functions of normally open and normally closed, and can continue to discharge water when normally open. However, due to frequent gaps in use and failure to close the faucet in time, it is easy to cause waste of water resources; Time-stop water faucets are generally used in public places, but when water needs to be discharged for a long time, it must be opened continuously or repeatedly, which is very inconvenient.

The Chinese utility model patent announcement number is CN202418789U, and the patent name is "a water-saving faucet integrating the functions of delayed water interruption and continuous water discharge". Function. However, in this structure, the upper section of the mandrel and the nut are moved downward through thread transmission, and then the shaft section of the lower section of the mandrel is moved downward to increase the valve opening to achieve continuous water outlet. Both the switch and the upper section of the mandrel will move up and down when the switch is on and off, giving the user the illusion of delaying water discharge, which is inconvenient to use.

Utility model content

The utility model provides a time-delay valve core with a normally open function, which overcomes the shortcomings of the background technology. The technical solution adopted by the utility model to solve the technical problem is: a time-delay valve core with a normally open function, which is characterized in that it includes:

The fixed part is provided with a water inlet (10), a water outlet (20) and a water hole (30);

a mandrel assembly, which is rotatably and slidably mounted on the fixed part, which rotates between a normally open position and a normally closed position, and which slides up and down between a normally closed position and a time-delay position;

The lifting block (300), which slides up and down in the fixed part and is connected to the mandrel assembly by transmission, has a low position (310) and a high position (320) with a height difference, and a continuous and gradual curved surface passes between the two positions (330) connection, the movement of the mandrel assembly drives the lifting block (300) to slide up and down. The assembly matches the high position (320) of the lifting block;

Adjusting shaft assembly, which slides up and down in the fixed part and is connected to the lifting block (300) by transmission. The adjusting shaft assembly seals the water hole (30) so that the water inlet (10) and the water outlet (20) are not connected. Sliding between the sealing position and the connecting position where the water inlet (10) and the water outlet (20) are connected by leaving the water hole (30). When the mandrel assembly is in the normally closed position, the adjusting shaft assembly is in the sealing position. When the shaft assembly is in the normally open position or the time-delay position, the adjusting shaft assembly is in the on position.

In a preferred embodiment: the mandrel assembly includes a mandrel body (210) and a pin shaft (220) fixed to the mandrel body (210), the mandrel body (210) rotates to drive the pin shaft (220) to The curved surface (330) of the lifting block moves up and drives the lifting block (300) to slide up and down, and when the mandrel assembly is in the normally closed position, the pin shaft (220) is against the low position (310) of the lifting block, and the mandrel assembly is in the normally open position Bearing pin (220) leans against the height (320) of lifting block during position.

In a preferred embodiment: the high position (320) of the lifting block is provided with a positioning groove (321), and the pin shaft (220) abuts against the positioning groove of the lifting block when the mandrel assembly is in the normally open position.

In a preferred embodiment: it also includes a connecting rod (230), the connecting rod (230) is located in the fixed part and its one end is connected with the lifting block (300), and its other end is connected with the adjustment shaft assembly; The reset elastic member (240) is sleeved on the outside of the connecting rod (230) and its two ends respectively abut against the connecting rod (230) and the fixed part.

In a preferred embodiment: the adjustment shaft assembly includes an adjustment shaft body (410) and a first seal (420) fixed to the adjustment shaft body (410), when the adjustment shaft assembly is in the sealing position, the first seal (420) seals the water passage hole (30), and the first sealing member (420) leaves the water passage hole (30) when the adjusting shaft assembly is in the connected position.

In a preferred embodiment: the adjusting shaft assembly further includes a Y-shaped sealing ring (430), the Y-shaped sealing ring (430) is fixedly sleeved outside the adjusting shaft body (410), and the adjusting shaft body (410), Y A delay control cavity (440) is formed between the Y-shaped seal ring (430) and the fixed part, and the opening of the Y-shaped seal ring (430) faces away from the delay control cavity (440), and the adjustment shaft body (410) is provided with a water injection hole ( 411) and the water injection chamber (412), the water injection hole (411) is connected with the water inlet (10), and the water injection chamber (412) is connected with the delay control chamber (440).

In a preferred embodiment: it also includes a time-delay elastic member (450), the time-delay elastic member (450) is installed in the water injection chamber (412) and its bottom end is suspended in the time-delay control chamber (440).

In a preferred embodiment: the water injection cavity (412) is provided with a delay hole sleeve (413) and a hollow lower gland (414), and the delay elastic member (450) is attached to the lower gland (414) And its top passes through hole cover (413) and stretches into water injection cavity (412), and the bottom end of delay elastic part (450) stretches out lower gland (414).

In a preferred embodiment: the fixed part includes an upper gland (110), a sliding sleeve (120), a water outlet body (130) and a water inlet body (140), and the upper gland (110) is fixed on the sliding sleeve The top of (120), the bottom of the sliding sleeve (120) is fixed to the top of the water outlet (130), the bottom of the water outlet (130) is fixed to the top of the water inlet (140), the water inlet (10) Set in the water inlet body (140), the water outlet (20) and the water hole (30) are opened in the water outlet body (130), the mandrel assembly extends into the sliding sleeve (120), the lifting block (300) and The sliding sleeve (120) is slidably matched, and the adjustment shaft assembly slides between the sliding sleeve (120), the water outlet body (130) and the water inlet body (140); there is also a handle cover (150), which is fixed Connect the mandrel assembly and be located above the upper gland (110).

In a preferred embodiment: the inner wall of the sliding sleeve (120) is provided with a sliding groove, and the outer periphery of the lifting block (300) is provided with a sliding block (340) capable of slidingly fitting with the sliding groove.

Compared with the background technology, this technical solution has the following advantages:

1. The spool has two functions of delayed water discharge and continuous water discharge at the same time, with a compact structure; and the mandrel assembly is rotated to make the low position of the mandrel assembly and the lifting block, the continuous and gradual curved surface of the mandrel assembly and the lifting block, and the mandrel The component and the high position of the lifting block are respectively matched to drive the lifting block to slide up and down, and then drive the adjusting shaft assembly to slide up and down to realize the on-off of the water inlet and the water outlet. Without moving up and down, it is convenient to switch between normally open and normally closed positions, saving time and effort.

2. The pin shaft is matched with the low position, curved surface and high position of the lifting block, so the structure is compact, simple and low cost.

3. The high position of the lifting block is provided with a positioning groove. When the mandrel assembly is in the normally open position, the pin shaft is against the positioning groove of the lifting block, so that the water discharge is stable when the water is normally open.

4. Press the mandrel assembly to drive the adjustment shaft assembly to slide downward, the first seal leaves the water hole, and the water pressure in the delay control chamber increases so that the opening of the Y-shaped sealing ring is closed inward under the action of water pressure, and the delay Control the water flow out of the cavity, and delay the compression of the elastic member until the mandrel assembly is in the delay position and the adjusting shaft assembly is in the on position; loosen the mandrel assembly, and the mandrel assembly will automatically reset to normally closed under the action of the reset elastic member position, the water flowing in from the water inlet flows into the delay control cavity through the water injection hole and the water injection cavity, and the adjustment shaft moves upward under the action of the delay elastic member and the water pressure in the delay control cavity until the adjustment shaft assembly is in the sealing position, and the delay When the water discharge is finished, the delayed water discharge function is completed.

5. The up and down sliding track of the lifting block is ensured through the sliding cooperation between the slider and the chute, and the lifting block is prevented from rotating with the rotation of the mandrel assembly.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

FIG. 1 shows an overall schematic diagram of a time-delay valve core with normally open function in a preferred embodiment.

Fig. 2 is a perspective exploded schematic view of a time-delay valve core with a normally open function in a preferred embodiment.

Fig. 3 shows a schematic structural view of a lifting block in a preferred embodiment.

FIG. 4 is a schematic structural diagram of an adjusting shaft assembly in a preferred embodiment.

FIG. 5 is a schematic structural diagram of a mandrel assembly in a preferred embodiment.

FIG. 6 is a schematic diagram of a preferred embodiment of the mandrel assembly when it is in a normally closed position.

FIG. 7 is a schematic diagram of a preferred embodiment of the mandrel assembly when it is in the normally open position.

FIG. 8 is a schematic diagram showing a state of the mandrel assembly in a delay position according to a preferred embodiment.

Detailed ways

Please refer to Figures 1 to 3, a preferred embodiment of a time-delay valve core with a normally open function, the described time-delay valve core with a normally open function, which includes a fixed part, a mandrel assembly, Lift block 300 and adjustment shaft assembly.

The fixed part is provided with a water inlet 10 , a water outlet 20 and a water hole 30 .

In this embodiment, the fixed part includes an upper gland 110, a sliding sleeve 120, a water outlet body 130 and a water inlet body 140. The upper gland 110 is fixed on the top end of the sliding sleeve 120, and the bottom end of the sliding sleeve 120 is fixed. The top end of the outlet water body 130 is connected, the bottom end of the water outlet body 130 is fixedly connected to the top end of the water inlet body 140, the water inlet 10 is set on the water inlet body 140, the water outlet 20 and the water passing hole 30 are set on the water outlet body 130, and the core The shaft assembly extends into the sliding sleeve 120, the lifting block 300 is slidably matched with the sliding sleeve 120, and the adjusting shaft assembly slides between the sliding sleeve 120, the water outlet body 130 and the water inlet body 140; and the water outlet body 130 and the water inlet body 140 A second seal 40 is provided between them. A handle cover 150 is also provided, and the handle cover 150 is fixedly connected to the mandrel assembly and is located above the upper gland 110 .

In this embodiment, the inner wall of the sliding sleeve 120 is provided with a slide groove (not shown in the figure).

The mandrel assembly is mounted on the fixed part so as to be able to rotate and slide up and down, it rotates between the normally open position and the normally closed position, and it slides up and down between the normally closed position and the delay position. In this embodiment, the mandrel assembly includes a mandrel body 210 and a pin shaft 220 fixed to the mandrel body 210 .

The lifting block 300, which slides up and down in the fixed part and is connected to the mandrel assembly by transmission, has a low position 310 and a high position 320 with a height difference, and the two positions are connected by a continuously changing curved surface 330, the core The movement of the shaft assembly drives the lifting block 300 to slide up and down. When the mandrel assembly is in the normally closed position, the mandrel assembly cooperates with the low position 310 of the lifting block. When the mandrel assembly is in the normally open position, the mandrel assembly cooperates with the high position 320 of the lifting block. In this embodiment, the rotation of the mandrel body 210 drives the pin shaft 220 to move on the curved surface 330 of the lifting block, thereby driving the lifting block 300 to slide up and down, and when the mandrel assembly is in the normally closed position, the pin shaft 220 is against the lower position 310 of the lifting block. , when the mandrel assembly is in the normally open position, the pin shaft 220 abuts against the high position 320 of the lifting block.

In this embodiment, the low position 310 , the curved surface 330 and the high position 320 of the lifting block are all located on the top surface of the lifting block 300 .

In this embodiment, the high position 320 of the lifting block is provided with a positioning groove 321, and the pin shaft 220 abuts against the positioning groove 321 of the lifting block when the mandrel assembly is in the normally open position.

In this embodiment, the outer periphery of the lifting block 300 is provided with a sliding block 340 capable of slidingly fitting with the sliding groove.

In this embodiment, the valve core also includes a connecting rod 230, which is located in the fixed part and one end of which is connected to the lifting block 300, and the other end is connected to the adjustment shaft assembly; there is also a reset elastic member 240, which It is sleeved on the connecting rod 230 and its two ends abut against the connecting rod 230 and the fixed part respectively.

In this embodiment, a Y-shaped sealing ring 231 is disposed between the connecting rod 230 and the sliding sleeve 120 .

The adjustment shaft assembly, which slides up and down in the fixed part and is connected to the lifting block 300 by transmission, the adjustment shaft assembly seals the water hole 30 so that the water inlet 10 and the water outlet 20 are not connected to the sealing position and leaves the water outlet. hole 30 to slide between the connected position where the water inlet 10 and the water outlet 20 are connected. When the mandrel assembly is in the normally closed position, the adjusting shaft assembly is in the sealing position, and when the mandrel assembly is in the normally open position or the delay position, the adjustment The shaft assembly is in the ON position.

In this embodiment, the adjustment shaft assembly includes an adjustment shaft body 410 and a first seal 420 fixed to the adjustment shaft body 410. When the adjustment shaft assembly is in the sealing position, the first seal 420 seals the water hole 30, and the adjustment shaft When the component is in the connected position, the first sealing member 420 is away from the water hole 30 .

In this embodiment, the adjusting shaft assembly further includes a Y-shaped sealing ring 430 , and the Y-shaped sealing ring 430 is fixedly sleeved outside the adjusting shaft body 410 . A delay control cavity 440 is formed and the opening of the Y-shaped sealing ring 430 faces away from the delay control cavity 440. The adjustment shaft body 410 is provided with a water injection hole 411 and a water injection cavity 412. The water injection hole 411 is connected to the water inlet 10, and the water injection cavity 412 It is connected with the delay control cavity 440 .

In this embodiment, the valve core further includes a time-delay elastic member 450 , the time-delay elastic member 450 is mounted in the water injection cavity 412 and its bottom end is suspended in the delay control cavity 440 .

In this embodiment, the water injection cavity 412 is provided with a delay hole sleeve 413 and a hollow lower gland 414, and the delay elastic member 450 is attached to the lower gland 414 and its top end passes through the hole sleeve 413 and extends into the water injection cavity 412 , the bottom end of the time-delay elastic member 450 protrudes from the lower gland 414 .

As shown in Figure 6, the mandrel assembly is in the normally closed position, the adjusting shaft assembly is in the sealing position, that is, the first sealing member 420 seals the water hole 30, the water inlet 10 and the water outlet 20 are not connected, and the pin shaft 220 Lean against the low position 310 of lifting block.

When continuous water discharge is required, turn the handle cover 150 to drive the spindle body 210 to rotate, and then drive the pin shaft 220 to rotate synchronously. The pin shaft 220 rotates from the low position 310 of the lifting block along the curved surface 330. Since the lifting block can only slide up and down, the pin During the rotation of 220, the lifting block is driven to slide down until the pin shaft 220 abuts against the high positioning groove 321 of the lifting block, and the sliding block 300 drives the adjustment shaft assembly to slide downward. At this time, the mandrel assembly is in the normally open position , the adjusting shaft assembly is in the connected position, as shown in Figure 7, that is, the first seal 420 leaves the water hole 30, the water inlet and the water outlet 20 are connected, and the pin shaft 220 is located in the positioning groove 321, ensuring Stable and continuous water discharge.

When it needs to be closed, just turn the handle cover 150 in the opposite direction, the pin shaft 220 slides out from the positioning groove 321 and rotates along the curved surface 330 until the pin shaft is at the lower position 310 of the lifting block, at this time the lifting block 300 slides upward to drive the adjustment shaft body 410 Sliding upward makes the first sealing member seal the water hole 30, the water inlet and the water outlet are not connected, and the mandrel assembly returns to the normally closed position.

When the water needs to be delayed, press the handle cover 150 to drive the mandrel body 210 to slide downward, the pin shaft 220 presses the lifting block 300 to drive the lifting block to slide down, the lifting block drives the adjustment shaft body 410 to slide down, the first seal 420 leaves the water hole 30, the water inlet 10 is connected with the water outlet 20, and the water pressure in the delay regulation chamber increases so that the opening of the Y-shaped sealing ring 430 is retracted inwardly, and the water in the delay regulation chamber 440 flows out, delaying When the elastic member 450 is compressed, until the mandrel assembly is in the time-delay position, as shown in Figure 8; loosen the mandrel assembly, the mandrel assembly automatically resets to the normally closed position under the action of the reset elastic member 240, and the water that flows into the water inlet 10 Through the water injection hole 411 and the water injection cavity 412, it flows into the delay control chamber 440, and the adjustment shaft body 410 moves upward under the action of the water pressure in the delay elastic member 450 and the delay control cavity 440 until the adjustment shaft assembly is in the sealing position, and the delay time When the water discharge is finished, the delayed water discharge function is completed. The length of time for delayed water discharge is determined by the speed at which water flows through the water injection hole and the water injection chamber enters the delay control chamber.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the contents of the specification should still belong to this utility model. within the scope of utility models.

Claims (10)

1. A time-delay spool with normally open function, characterized in that: it comprises: The fixed part is provided with a water inlet (10), a water outlet (20) and a water hole (30); a mandrel assembly, which is rotatably and slidably mounted on the fixed part, which rotates between a normally open position and a normally closed position, and which slides up and down between a normally closed position and a time-delay position; The lifting block (300), which slides up and down in the fixed part and is connected to the mandrel assembly by transmission, has a low position (310) and a high position (320) with a height difference, and a continuous and gradual curved surface passes between the two positions (330) connection, the movement of the mandrel assembly drives the lifting block (300) to slide up and down. The assembly matches the high position (320) of the lifting block; Adjusting shaft assembly, which slides up and down in the fixed part and is connected to the lifting block (300) by transmission. The adjusting shaft assembly seals the water hole (30) so that the water inlet (10) and the water outlet (20) are not connected. Sliding between the sealing position and the connecting position where the water inlet (10) and the water outlet (20) are connected by leaving the water hole (30). When the mandrel assembly is in the normally closed position, the adjusting shaft assembly is in the sealing position. When the shaft assembly is in the normally open position or the time-delay position, the adjusting shaft assembly is in the on position. 2. A time-delay valve core with normally open function according to claim 1, characterized in that: the mandrel assembly includes a mandrel body (210) and a pin shaft ( 220), the mandrel body (210) rotates to drive the pin shaft (220) to move on the curved surface (330) of the lifting block and then drives the lifting block (300) to slide up and down, and when the mandrel assembly is in the normally closed position, the pin shaft (220) Against the low position (310) of the lifting block, the pin shaft (220) is against the high position (320) of the lifting block when the mandrel assembly is in the normally open position. 3. A time-delay valve core with normally open function according to claim 2, characterized in that: the high position (320) of the lifting block is provided with a positioning groove (321), when the mandrel assembly is in the normally open position The bearing pin (220) leans against the positioning groove of the lifting block. 4. A time-delay spool with a normally open function according to claim 2, characterized in that it also includes a connecting rod (230), the connecting rod (230) is located in the fixed part and one end of the connecting rod (230) is connected to the lifting block (300 ), and the other end is connected with the adjustment shaft assembly; there is also a reset elastic member (240), which is sleeved outside the connecting rod (230) and its two ends are respectively against the connecting rod (230) and the fixed part . 5. A time-delay spool with normally open function according to claim 1, characterized in that: the adjustment shaft assembly includes an adjustment shaft body (410) and a first The seal (420), the first seal (420) seals the water hole (30) when the adjustment shaft assembly is in the sealing position, and the first seal (420) leaves the water hole (30) when the adjustment shaft assembly is in the on position . 6. A time-delay spool with normally open function according to claim 5, characterized in that: the adjustment shaft assembly further includes a Y-shaped sealing ring (430), and the Y-shaped sealing ring (430) is fixedly socketed Outside the adjusting shaft body (410), a time-delay regulating cavity (440) is formed between the adjusting shaft body (410), the Y-shaped sealing ring (430) and the fixed part, and the opening of the Y-shaped sealing ring (430) is facing away from the time-delay The control chamber (440), the adjustment shaft body (410) is provided with a water injection hole (411) and a water injection chamber (412), the water injection hole (411) is connected with the water inlet (10), and the water injection chamber (412) is connected with the delay control cavity (440) is connected. 7. A time-delay valve core with normally open function according to claim 6, characterized in that it further comprises a time-delay elastic member (450), and the time-delay elastic member (450) is attached to the water injection chamber (412) and its bottom is suspended in the time-delay control chamber (440). 8. A time-delay valve core with normally open function according to claim 7, characterized in that: the water injection chamber (412) is provided with a time-delay hole sleeve (413) and a hollow lower gland (414 ), the time-delay elastic part (450) is installed on the lower gland (414) and its top end passes through the hole sleeve (413) and extends into the water injection chamber (412), and the bottom end of the time-delay elastic part (450) extends out of the lower gland (414). 9. A time-delay valve core with normally open function according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, characterized in that: the fixed part includes an upper gland (110) , the sliding sleeve (120), the water outlet body (130) and the water inlet body (140), the upper gland (110) is fixed on the top of the sliding sleeve (120), and the bottom end of the sliding sleeve (120) is fixed The top part of the water body (130), the bottom part of the water outlet body (130) is fixedly connected to the top part of the water inlet body (140), and the water inlet (10) is opened on the water inlet body (140), the water outlet (20) and the overpass. The water hole (30) is opened in the water outlet body (130), the mandrel assembly extends into the sliding sleeve (120), the lifting block (300) is slidably matched with the sliding sleeve (120), and the adjusting shaft assembly is in the sliding sleeve (120), Sliding between the water outlet body (130) and the water inlet body (140); a handle cover (150) is also provided, and the handle cover (150) is fixed to the mandrel assembly and is located above the upper gland (110). 10. A time-delay valve core with normally open function according to claim 9, characterized in that: the inner wall of the sliding sleeve (120) is provided with a chute, and the outer periphery of the lifting block (300) is provided with A slide block (340) capable of slidingly engaging with the chute.

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