A mechanical time-controlled automatic return type faucet opening and closing device

Abstract

The invention provides a mechanical time-controlled automatic return type faucet opening and closing device in the technical field of faucets, comprising a lower shell body with an installation cavity, a rotating shaft rotatably connected to the center of the lower shell body, a rotating rod extending outwardly is provided on the rotating shaft, a volute spring is sleeved on the rotating shaft, the volute spring is on the upper side of the rotating shaft, an end of the volute spring extending outwardly is connected to the rotating rod, an end of the volute spring facing inwardly is connected to the lower shell body, a rotating driver is connected to the lower shell body, a telescopic rod capable of reciprocating circular motion in a circumferential direction is provided on the rotating driver, a piston body is provided on the telescopic rod extending into the rotating driver, an outer side of the piston body is fitted with an inner wall of the rotating driver, an end of the telescopic rod away from the rotating driver is connected to the rotating rod, a sealing end cover is hinged on the rotating driver, and a vent is provided on the sealing end cover; the product of the invention has low cost, adjustable water flow time, is easy to use, and can realize water-saving and throttling work of the faucet.

Description

Technical Field

[0001] The invention belongs to the technical field of faucets, and in particular relates to a mechanical time-controlled automatic return type faucet opening and closing device. Background Art

[0002] Saving water and protecting water resources have become a social consensus, and water-saving faucets have been basically popularized in my country. Common water-saving faucets include quick-open faucets, mechanical push-type faucets, induction faucets, etc. Among them, push-type and induction faucets have self-closing functions. However, mechanical push-type faucets have the disadvantage that their response time cannot be controlled.

[0003] In the Chinese patent database, the patent name is "An integrated induction faucet", the authorization announcement date is 2011.10.12, and the application publication number is CN 102213341 A's Chinese patent, the device includes a faucet body, the faucet body is provided with a body cover, a body base, a rotatable energy-saving water spout, the faucet body is installed with a solenoid valve seat, a solenoid valve sleeve, a solenoid valve, an infrared transmitting and receiving device, a waterproof battery box and a battery, the infrared transmitting and receiving device is provided with a control wire to connect the solenoid valve and control the opening or closing of the solenoid valve, the solenoid valve, the solenoid valve seat, and the waterproof battery box are all installed in the solenoid valve sleeve; the rotatable energy-saving water spout is composed of a rotatable water spout rear section and a rotatable water spout front section, the rotatable water spout rear section is provided with a rotating positioning pin to limit the rotatable water spout rear section to only be able to rotate 180 degrees, the water outlet end of the rotatable water spout rear section is provided with a constant flow water saver, the rotatable water spout rear section can be rotated 180 degrees relative to the rotatable water spout front section, to achieve the effect of water saving and energy saving, but the sensing sensitivity of the device is easily reduced, regular maintenance is required, the cost is high, the water flow time is difficult to adjust, and it is inconvenient to use. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to solve the shortcomings in the prior art and solve the technical problems of high cost and inconvenient water flow time adjustment in the prior art, and to provide a mechanically controlled automatic return type faucet opening and closing device, which has low cost, adjustable water flow time and is easy to use.

[0005] The objective of the present invention is achieved as follows: a mechanical time-controlled automatic return type faucet opening and closing device comprises a lower shell body with an installation cavity, a rotating shaft is rotatably connected to the center of the lower shell body, a rotating rod extending outward is provided on the rotating shaft, a volute spring is mounted on the rotating shaft, the volute spring is on the upper side of the rotating shaft, one end of the volute spring extending outward is connected to the rotating rod, and the end of the volute spring facing inward is connected to the lower shell body, a rotary driver is connected to the lower shell body, a telescopic rod capable of reciprocating circular motion in a circumferential direction is provided on the rotary driver, a piston body is provided on the telescopic rod extending into the rotary driver, the outer side of the piston body is in contact with the inner wall of the rotary driver, one end of the telescopic rod away from the rotary driver is connected to the rotating rod, a sealing end cover is hinged on the rotary driver, and a vent is provided on the sealing end cover.

[0006] Before the present invention works, the lower housing is fixed on the valve core end cover of the faucet, and the rotating shaft is connected to the valve stem on the spiral valve core (in the present invention, the structure of the faucet, the spiral valve core and the valve core end cover is the prior art, and the present invention will not repeat it). When the water outlet of the faucet needs to flow out, the rotating shaft is rotated counterclockwise. Since the rotating shaft is fixed on the valve stem, the rotation of the rotating shaft also drives the valve stem to rotate. The counterclockwise rotation of the valve stem causes the sealing end of the spiral valve core to move upward. The water inlet of the faucet is opened, and water flows into the faucet from the water inlet, and then flows out from the water outlet of the faucet, realizing water flowing from the water outlet of the faucet. At the same time, the rotation of the rotating shaft causes the rotating rod to rotate counterclockwise, and the rotation of the rotating rod causes the volute spring to deform under the counterclockwise tension, and the rotation of the rotating rod causes the telescopic rod to rotate counterclockwise in the rotary driver, and the piston body squeezes the air in the rotary driver outward. Because the sealing end cover is hinged on the rotary driver, the sealing end cover is pushed open by the airflow inside the rotary driver, and the air is quickly discharged. When the air in the rotary driver is completely discharged, the rotating shaft stops rotating, the rotating shaft is released, and no rotational force is applied to the rotating shaft. The rotating rod rotates clockwise under the action of the restoring force of the volute spring, and the rotation of the rotating rod drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the valve stem to rotate. The clockwise rotation of the valve stem causes the sealing end of the spiral valve core to move downward. At the same time, the rotation of the rotating rod also causes the telescopic rod to rotate clockwise in the rotary driver. The piston body rotates clockwise in the rotary drive, so that negative air pressure is formed in the rotary drive, and the external air is sucked into the rotary drive. The sealing end cover is first closed on the rotary drive under the push of the external airflow, and then the external air can only enter the rotary drive through the vent. When the air pressure inside and outside the rotary drive is consistent, the piston body returns to the initial position of the rotary drive, that is, the scroll spring returns to the initial position. At this time, the sealing end of the rotary valve core just blocks the water inlet of the faucet, and the water outlet of the faucet stops flowing, realizing the automatic water cut-off of the water outlet of the faucet. The setting of the rotary drive and the sealing end cover in the present invention can, on the one hand, realize the rapid water discharge of the faucet, and on the other hand, can make the water flow automatically cut off after a period of time, with low cost and convenient use; the setting of the rotating shaft can control the length of the water flow time by controlling the size of the rotating angle of the rotating shaft as needed, and the water flow time is adjustable and easy to adjust; it can be applied to the water-saving and throttling work of the automatic return of the faucet.

[0007] In order to achieve adjustable size of the vent and adjustable speed of air flowing into the rotating drive, a vent baffle is rotatably connected to the sealing end cover, and the vent baffle can cover the vent. A notch is provided on the vent baffle, and when the vent baffle is rotated, the notch can be connected to the vent.

[0008] In order to make the structure more stable and prolong the service life, an upper cover is also included. A boss is provided on the inner side of the upper cover, and a slot is provided on the upper periphery of the lower shell body. The boss can be just inserted into the slot.

[0009] In order to facilitate the adjustment of the vent baffle from the outside so that the vent baffle can rotate on the sealing end cover, an operating opening for conveniently adjusting the vent baffle is opened on the lower cover body outside the sealing end cover.

[0010] In order to facilitate the rotation of the rotating shaft and facilitate operation, a lever that is easy to operate by hand is connected to the upper side of the rotating shaft. The lever is above the upper cover. A connecting hole 1 is provided on the lever, and a connecting hole 2 is provided on the rotating shaft. The connecting hole 1 is coaxial with the connecting hole 2.

[0011] In order to facilitate the fixing of the lower shell body on the valve core end cover of the faucet, at least two connecting ears are provided on the lower shell body, and the connecting ears are provided with a connecting hole three for fixing.

[0012] In order to realize that the vent baffle can be rotatably connected to the sealing end cover, the sealing end cover is provided with a connecting protrusion, the connecting protrusion is provided with a connecting hole four, the vent baffle is provided with a connecting hole five, and the vent baffle is mounted on the connecting protrusion through the connecting hole five. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the present invention.

[0014] Figure 2 It is a top view of the present invention.

[0015] Figure 3 This is a top view of the present invention when the upper cover is removed.

[0016] Figure 4 The three-dimensional structure of the present invention when the upper cover is removed Figure 1 .

[0017] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0018] Figure 6 The three-dimensional structure of the present invention when the upper cover is removed Figure 2 .

[0019] Figure 7 It is a schematic diagram of the structure of the sealing end cover in the present invention.

[0020] Figure 8 It is a structural schematic diagram of the vent baffle in the present invention.

[0021] Fig. 9 It is a schematic diagram of the structure of the spiral spring in the present invention.

[0022] Fig.10 It is a structural schematic diagram of the lower cover body in the present invention.

[0023] Fig.11 It is a schematic diagram of the structure when the present invention is installed on a faucet.

[0024] Fig.12 for Fig.11 A partial enlarged view of point B in the middle.

[0025] Among them, 1 lower shell, 101 installation cavity, 102 card slot, 103 connecting ear, 103a connecting hole three, 104 operation port, 105 rotating shaft mounting hole, 106 spring mounting hole, 2 rotating shaft, 201 connecting hole two, 3 rotating rod, 4 scroll spring, 401 spring fixing hole, 5 rotating driver, 6 telescopic rod, 7 sealing end cover, 701 vent, 702 connecting protrusion, 702a connecting hole four, 8 piston body, 9 vent baffle, 901 notch, 902 connecting hole five, 10 upper cover, 1001 boss, 11 lever, 1101 connecting hole one, 12 spiral valve core, 1201 valve stem, 1201a threaded connecting hole, 1202 sealing end, 13 valve core end cover, 14 faucet, 15 water inlet, 16 water outlet, 17 hinge. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 12The mechanical time-controlled automatic return type faucet opening and closing device shown in the figure comprises an upper cover 10 and a lower shell 1 with a mounting cavity 101. A boss 1001 is provided on the inner side of the upper cover 10, and a slot 102 is provided on the upper periphery of the lower shell 1. The boss 1001 can be just inserted into the slot 102. A rotating shaft 2 is rotatably connected to the center of the lower shell 1. A rotating shaft mounting hole 105 is provided on the lower shell 1. The rotating shaft 2 can be inserted into the rotating shaft mounting hole 105. A rotating rod 3 extending outward is provided on the rotating shaft 2. A volute spring 4 is sleeved on the rotating shaft 2. The volute spring 4 is in On the upper side of the rotating shaft 2, one end of the spiral spring 4 extending outward is connected to the rotating rod 3, and the end of the spiral spring 4 facing inward is provided with a spring fixing hole 401, and the lower shell 1 is also provided with a spring mounting hole 106. The spiral spring 4 is connected to the lower shell 1 through the spring fixing hole 401 and the spring mounting hole 106. The lower shell 1 is connected with a rotating driver 5, and the rotating driver 5 is provided with a telescopic rod 6 that can perform reciprocating circular motion in the circumferential direction. The telescopic rod 6 extending into the rotating driver 5 is provided with a piston body 8, and the outer side of the piston body 8 is in contact with the inner wall of the rotating driver 5. One end of the telescopic rod 6 away from the rotary driver 5 is connected to the rotating rod 3, and a sealing end cover 7 is hinged on the rotary driver 5. A vent 701 is provided on the sealing end cover 7, and a vent baffle 9 is rotatably connected to the sealing end cover 7. The vent baffle 9 can cover the vent 701. A notch 901 is provided on the vent baffle 9. When the vent baffle 9 is rotated, the notch 901 can be connected to the vent 701. An operating port 104 for conveniently adjusting the vent baffle 9 is provided on the lower cover body outside the sealing end cover 7, and a lever convenient for hand operation is connected to the upper side of the rotating shaft 2. 11. The lever 11 is above the upper cover 10, and a connecting hole 1101 is provided on the lever 11. A connecting hole 201 is provided on the rotating shaft 2. The connecting hole 1101 is coaxial with the connecting hole 201. At least two connecting ears 103 are provided on the lower shell 1. The connecting ears 103 are provided with a connecting hole 3 103a for fixing. A connecting protrusion 702 is provided on the sealing end cover 7. A connecting hole 4 702a is opened on the connecting protrusion 702. A connecting hole 5 902 is provided on the vent baffle 9. The vent baffle 9 is mounted on the connecting protrusion 702 through the connecting hole 5 902.

[0028] The present invention needs to be used in conjunction with a faucet 14. The valve stem 1201 on the spiral valve core 12 in the faucet 14 has a threaded connection hole 1201a. The rotating shaft 2 of the present invention can be fixed to the valve stem 1201 through the threaded connection hole 1201a by screws, and the lower cover body is fixed to the valve core end cover 13 (in the present invention, the structures of the faucet 14, the spiral valve core 12 and the valve core end cover 13 are prior art, and the present invention will not repeat them). When the present invention is assembled, the sealing end cover 7 is first connected to the rotary driver 5 with a hinge 17, and then the vent baffle 9 is fitted to the connection of the sealing end cover 7 through the connection hole 5 902. The convex part 702 is then screwed into the connecting hole 702a with a screw, so that the vent baffle plate 9 can rotate on the sealing end cover 7, and then the volute spring 4 is wound around the rotating shaft 2, so that the volute spring 4 is on the upper side of the rotating rod 3, and the end of the volute spring 4 extending outward hooks the rotating rod 3, so that the volute spring 4 is sleeved on the rotating shaft 2, and then the rotating shaft 2 under the rotating rod 3 is inserted into the rotating shaft mounting hole 105 of the lower shell 1, and a nut is placed between the volute spring 4 and the lower shell 1, so that the threaded hole of the nut is coaxial with the spring fixing hole 401 and the spring mounting hole 106, and then the spring fixing hole 401 and the spring mounting hole 106 are screwed into the nut with bolts in sequence. The bolt extending out of the lower housing 1 is tightened with a nut in the fixing hole 401, the threaded hole of the bolt and the spring mounting hole 106 to fix the volute spring 4 on the lower housing 1. The lower housing 1 is placed on the faucet 14, and the connecting ear 103 of the lower housing 1 is fixed to the valve core end cover 13 of the faucet 14 with a screw to fix the lower cover body. The rotating shaft 2 is coaxial with the valve stem 1201, and the rotary driver 5 is placed on the lower housing 1 so that the initial state of the piston body 8 is at the uppermost part of the rotary driver 5. Then, the end of the telescopic rod 6 away from the rotary driver 5 is connected to the end of the rotary rod 3 extending outward. , fix the rotary driver 5 on the lower shell 1 to fix the rotary driver 5, cover the upper cover 10 on the lower cover, press down slightly so that the boss 1001 is just inserted into the slot 102 to fix the upper cover 10, and then rotate the lever 11 to the required initial position, so that the connecting hole 1101 of the lever 11 is coaxial with the connecting hole 201 of the rotating shaft 2, and finally screw into the connecting hole 1101, the connecting hole 201 and the threaded connecting hole 1201a of the valve stem 1201 in sequence to connect the lever 11 with the rotating shaft 2 and the valve stem 1201, and complete the assembly of the mechanism.

[0029] Before using the present invention, the vent baffle 9 can be rotated to a set position as needed, so that the size of the vent 701 is the set size. When water needs to flow out of the water outlet 16 of the faucet 14, the lever 11 is rotated counterclockwise. The rotation of the lever 11 drives the rotating shaft 2 to rotate. Since the rotating shaft 2 is fixed on the valve stem 1201, the rotation of the rotating shaft 2 also drives the valve stem 1201 to rotate. The counterclockwise rotation of the valve stem 1201 causes the sealing end 1202 of the spiral valve core 12 to move upward. The water inlet 15 of the faucet 14 is opened, and water flows into the faucet 14 from the water inlet 15, and then flows out from the water outlet 16 of the faucet 14, so that water flows out of the water outlet 16 of the faucet 14. At the same time, the rotation of the rotating shaft 2 causes the rotating rod 3 to rotate counterclockwise, and the rotation of the rotating rod 3 causes the spiral spring 4 to withstand the counterclockwise tension and deform, and the rotation of the rotating rod 3 causes the telescopic rod 6 to rotate counterclockwise in the rotary driver 5. The piston body 8 squeezes the air in the rotary driver 5 outwards. Because the sealing end cover 7 is hinged on the rotary driver 5, the sealing end cover 7 is pushed open by the airflow inside the rotary driver 5, and the air is quickly discharged. When all the air in the rotary driver 5 is exhausted, the rotary shaft 2 stops rotating, the lever 11 is released, and the rotary rod 3 rotates clockwise under the action of the restoring force of the spiral spring 4. The rotation of the rotary rod 3 drives the rotary shaft 2 to rotate, and the rotation of the rotary shaft 2 drives the valve stem 1201 to rotate. The clockwise rotation of the valve stem 1201 causes the sealing end 1202 of the spiral valve core 12 to move downward. At the same time, the rotation of the rotary rod 3 also causes the telescopic rod 6 to rotate clockwise in the rotary driver 5, and the piston body 8 rotates clockwise in the rotary driver 5, so that negative air pressure is formed in the rotary driver 5, and the outside air is sucked into the rotary driver 5. The sealing end cover 7 is pushed by the external airflow to close on the rotary driver 5 first, and then the external air can only enter the rotary driver 5 through the vent 701. When the air pressure inside and outside the rotary driver 5 is consistent, the piston body 8 returns to the initial position of the rotary driver 5, that is, the scroll spring 4 returns to the initial position. At this time, the sealing end 1202 of the rotary valve core just blocks the water inlet 15 of the faucet 14, and the water outlet 16 of the faucet 14 stops flowing, realizing the automatic water cut-off of the water outlet 16 of the faucet 14. When it is necessary to calibrate the set return time of the lever 11, that is, the water flow duration, the vent baffle 9 can be rotated through the operating port 104. , so that the vent baffle 9 returns to the set position, the return time of the lever 11 can be calibrated. In order to further adjust the length of the water flow time, the area of ​​the vent 701 covered by the vent baffle 9 can also be adjusted. The setting of the rotary driver 5, the sealing end cover 7 and the vent 701 in the present invention can, on the one hand, realize the rapid water discharge of the faucet 14, and on the other hand, can automatically cut off the water flow after maintaining the water flow for a period of time, which is low in cost and easy to use; the setting of the rotating shaft 2 and the lever 11 can control the length of the water flow time by controlling the rotation angle of the lever 11 as needed, and the water flow time is adjustable and easy to adjust;The setting of the vent baffle 9 can realize the calibration of the set water flow time, and can also further realize the adjustment of the water flow time; the setting of the spiral spring 4 can make the lever 11 return to the initial position, which is convenient to use; it can be applied to the water-saving and throttling work of the faucet 14 automatically returning. ;

[0030] The present invention is not limited to the above-mentioned embodiments. Based on the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some of the technical features according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A mechanical time-controlled automatic return type faucet opening and closing device, characterized in that: The invention comprises a lower shell having an installation cavity, wherein a rotating shaft is rotatably connected to the center of the lower shell, a rotating rod extending outward is provided on the rotating shaft, a volute spring is mounted on the rotating shaft, the volute spring is on the upper side of the rotating shaft, one end of the volute spring extending outward is connected to the rotating rod, and one end of the volute spring facing inward is connected to the lower shell, a rotating driver is connected to the lower shell, a telescopic rod capable of reciprocating circular motion in a circumferential direction is provided on the rotating driver, a piston body is provided on the telescopic rod extending into the rotating driver, the outer side of the piston body is in contact with the inner wall of the rotating driver, one end of the telescopic rod away from the rotating driver is connected to the rotating rod, a sealing end cover is hinged on the rotating driver, and a vent is provided on the sealing end cover.

2. A mechanical time-controlled automatic return type faucet opening and closing device according to claim 1, characterized in that: The sealing end cover is rotatably connected with a vent baffle, which can cover the vent. A notch is arranged on the vent baffle, and when the vent baffle is rotated, the notch can be connected with the vent.

3. The mechanical time-controlled automatic return type faucet opening and closing device according to claim 1 is characterized in that: It also includes an upper cover, the inner side of which is provided with a boss, and the upper outer periphery of the lower shell is provided with a slot, and the boss can be just inserted into the slot.

4. The mechanical time-controlled automatic return type faucet opening and closing device according to claim 2 is characterized in that: An operating opening for conveniently adjusting the vent baffle is provided on the lower cover body outside the sealing end cover.

5. The mechanical time-controlled automatic return type faucet opening and closing device according to claim 1 is characterized in that: The upper side of the rotating shaft is connected with a lever convenient for hand operation, the lever is above the upper cover, a connecting hole 1 is arranged on the lever, a connecting hole 2 is arranged on the rotating shaft, and the connecting hole 1 is coaxial with the connecting hole 2.

6. The mechanical time-controlled automatic return type faucet opening and closing device according to claim 3 is characterized in that: The lower shell body is provided with at least two connecting ears, and the connecting ears are provided with connecting holes three for fixing.

7. The mechanical time-controlled automatic return type faucet opening and closing device according to claim 4 is characterized in that: The sealing end cover is provided with a connecting protrusion, and a connecting hole four is opened on the connecting protrusion. The vent baffle is provided with a connecting hole five, and the vent baffle is mounted on the connecting protrusion through the connecting hole five.

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