A faucet

Abstract

The present invention discloses a faucet, which includes a draw telescopic balancer. The draw telescopic balancer includes a return spring and a traction rope. One end of the return spring is a traction part, and the force of the traction part increases as the deformation of the spring increases. It also includes a balancing device. A spiral track with a gradually decreasing radius from the outside to the inside is provided on the balancing device. The traction rope is arranged in the track. The balancing device can rotate along the axis. The traction rope includes a fixed end and a traction end. The outer end of the track is connected to the traction part and the fixed end. The traction rope extends out from the inner end of the track to form the traction end. Pulling the traction end of the traction rope drives the balancing device to rotate along the axis, thereby driving the return spring to deform. Releasing the traction rope, the balancing device resets under the action of the return spring. The advantage is that a balancing device is added on the basis of the existing spring to offset the influence of Hooke's law on the pulling force and greatly reduce the change of the pulling force.

Description

Technical Field

[0001] The present invention relates to the field of faucets, and particularly to a faucet. Background Art

[0002] A faucet is a common name for a water valve, which is used to control the size of the water flow switch and has the effect of saving water. Traditional faucets include a base and a water outlet pipe. A control valve is provided on the base, and the control valve controls the opening and closing of tap water. Since the water outlet pipe of the traditional faucet is fixed or semi-fixed on the base, the water outlet range of the water outlet is limited. To solve this technical problem, a faucet with a telescopic water outlet part has been developed. A heavy object or a spring is suspended below the water outlet part for resetting. When in use, the water outlet part of the water outlet pipe can be pulled out and pulled to any required position. After releasing, the water outlet part automatically resets under the action of the heavy object or the spring.

[0003] The disadvantages of the existing design are as follows: 1. The heavy object requires a certain telescopic space, resulting in a relatively large occupied volume of the faucet and poor integration level; the heavy object will shake during telescoping, and the faucet is not stable enough during use; 3. The force of the spring is affected by Hooke's law, and the pulling force for pulling the water outlet part varies. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a telescopic balance device and a faucet with a small occupied volume and a relatively constant pulling force for returning. The present invention adds a balance device on the basis of the existing spring. By controlling the change of torque, the influence of Hooke's law on the pulling force is offset, and the change of the pulling force is greatly reduced.

[0005] The technical solution adopted by the present invention to solve the above technical problems is a faucet, which includes a reset spring and a traction rope. One end of the reset spring is a traction part, and the force of the traction part increases as the deformation of the spring increases. It also includes a balance device. A spiral track with a gradually decreasing radius from the outside to the inside is provided on the balance device. The traction rope is arranged in the track. The balance device can rotate along the axis. The traction rope includes a fixed end and a traction end. The outer end of the track is connected to the traction part and the fixed end. The traction rope extends out from the inner end of the track to form the traction end. Pulling the traction end of the traction rope drives the balance device to rotate along the axis, thereby driving the reset spring to deform; releasing the traction rope, the balance device resets under the action of the reset spring.

[0006] A further preferred solution of the present invention is that the balance device is in a disc shape.

[0007] A further preferred solution of the present invention is that the middle part of the track bulges outwards, and the high and low tracks are distributed in a stepped manner.

[0008] A further preferred embodiment of the present invention is that the distance between two adjacent outer tracks is greater than the distance between two adjacent inner tracks.

[0009] A further preferred embodiment of the present invention is that the axis includes a bearing and a central shaft, and the bearing is sleeved outside the central shaft.

[0010] A further preferred embodiment of the present invention is that a volute spring is also sleeved outside the central shaft, and the inner end of the volute spring is fixed to the central shaft.

[0011] A further preferred embodiment of the present invention is that a tension handwheel for tightening the volute spring is sleeved outside the central shaft. A detent and a detent tooth are arranged inside the tension handwheel. The detent is connected to a return torsion spring, and the detent tooth is arranged on the runner.

[0012] A further preferred embodiment of the present invention is that it further includes a housing. A traction port is arranged on the housing. The traction rope passes through the traction port. A roller is arranged on one side of the balance device. After the traction rope is led out from the balance device, it passes through the roller and then passes out from the traction port.

[0013] A further preferred embodiment of the present invention is that the return spring is a volute spring, a tension spring or a compression spring.

[0014] A faucet includes a base and a water outlet pipe. The water outlet of the water outlet pipe is a movable water outlet part, and the rear end of the water outlet part is connected to any one of the above-mentioned draw telescopic balancers.

[0015] The return spring is affected by Hooke's law. The greater the deformation amplitude, the greater the return force. And in the present invention, a balance device is added to counteract the increase in the pulling force in the reverse direction. Specifically, a spiral track is arranged on the balance device. The traction rope is accommodated in the track. One end of the traction rope is fixed to the outer end of the track, and the other end of the traction rope extends outwards from the inner end of the track. Thus, the moment of the inner end of the traction rope is smaller, the required pulling force is larger, and the corresponding return force of the return spring is smaller. As a result, the change amplitude of the pulling force of the traction rope is smaller, the occupied volume is small, the integration is strong, and the installation is firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 is an exploded view of the present invention;

[0017] FIG. 2 is a structural schematic diagram of the present invention;

[0018] FIG. 3 is an effect diagram of the change in the pulling force when used in combination with the balance device;

[0019] FIG. 4 is a perspective view of the present invention;

[0020] FIG. 5 is a structural schematic of the present invention Figure 1 ;

[0021] Figure 6 is a schematic structural diagram of the present invention. Figure 2 ;

[0022] Figure 7 is a perspective view of the balancing device. Specific embodiments

[0023] The present invention will be further described in detail below in conjunction with the embodiments with reference to the accompanying drawings.

[0024] In traditional telescopic tensioners, due to the use of extension springs, compression springs or volute springs (clockwork springs), the force during their stretching and retracting processes follows Hooke's law: F = k*L. The force is small at the beginning and large at the end, showing a large change. This telescopic tensioner is specially designed with a special structure to overcome this phenomenon. It can quantitatively overcome the Hooke's law phenomenon of the traditional tensioner where the force is small at the beginning and large at the end by mechanical methods or quantitatively alleviate this phenomenon (the experimental data curve is shown in Figure 3), solving the problem of unbalanced tension of the tensioner.

[0025] The principle is: a conical variable-diameter vortex-shaped wire winding and unwinding wheel is combined with a spring. At the starting position of the spring, the rigging is at a small radius, and at the tensioned position of the spring, the telescopic rigging is at a large radius.

[0026] Because: the spring force f = k*L, the torque N1 exerted by the spring on the spring axis is N1 = f*r, and the wheel is combined with the spring, and the torque N2 of the balancing wheel is N2 = N1 = F*R. So: k*L*r = F*R, that is: F = k*L*r / R.

[0027] Where: k - Hooke's coefficient (constant), L - spring displacement distance (variable, increasing with pulling), r - spring axis radius (constant), R - distance from the combination point of the towing rope and the track to the axis (variable, increasing with pulling). Rearranging: F = (k*r)L / R

[0028] Conclusion: It can be seen that the tensile force F is proportional to the spring displacement distance L and inversely proportional to the distance R from the combination point of the towing rope and the track to the axis. Therefore, when L increases with pulling and R also increases with pulling, as long as the change ratios of L and R are the same, the effect of F remaining unchanged can be achieved, thereby reducing the change in tension. The new telescopic balancing tensioner can be used in industries such as the pull-out devices of bathroom products and tool hooks.

[0029] As shown in FIGS. 1-7, a pull-out telescopic balancer includes a return spring 1 and a traction rope 2. The return spring 1 can be a volute spring, a tension spring or a compression spring. One end of the return spring 2 is a traction part 3, and the force of the traction part 3 increases with the increase of the spring deformation. In the present invention, a balancing device 4 is added. A spiral track 5 with a gradually decreasing radius from the outside to the inside is provided on the balancing device 4. The traction rope 2 is accommodated in the traction track 5. The balancing device 4 can rotate along the axis 6. The traction rope 2 includes a fixed end and a traction end 8. The outer end of the track 5 is connected to the traction part 3 and the fixed end. The traction rope 2 extends out from the inner end of the track 5 to form the traction end 8. There is a joint part 9 between the traction rope 8 and the track 5. Pull the traction end 8 of the traction rope 2, and the traction rope 2 drives the balancing device 4 to rotate along the axis 6, thereby driving the return spring 2 to deform. Release the traction rope 2, and the balancing device 4 is reset under the action of the return spring 2.

[0030] The balancing device 4 is disc-shaped and is matched with the spiral track 5. The middle part of the track 5 bulges outwards, so that the adjacent two tracks, the high and low tracks 5, are distributed in a stepped shape, and the staggered tracks 5 will not affect the pulled traction rope 2. The distance between two adjacent outer tracks 5 is greater than the distance between two adjacent inner tracks 6. The axis 6 includes a bearing 10 and a central shaft 11. The bearing 10 is sleeved outside the central shaft 11. The balancing device 4 drives the bearing 10 to rotate around the central shaft 11. A volute spring 12 is also sleeved outside the central shaft 11. The inner end of the volute spring 12 is fixed to the central shaft 11, and the outer end of the volute spring 12 is fixed to the outside of the balancing device 4. The outer end of the volute spring 12 is the traction part 3. A tension handwheel 13 for tightening the volute spring 12 is sleeved outside the central shaft 11, and anti-slip grooves are provided on the outside of the tension handwheel 13, as Figure 6As shown, a detent 14 and a detent tooth 15 are provided inside the tensioning handwheel 13. The detent 14 is connected to a return torsion spring 20. The detent tooth 15 is provided on the runner 16. When the restoring force of the scroll spring is insufficient, the tensioning handwheel 13 needs to be rotated to further twist the scroll spring 12. After releasing the hand, the detent 14 abuts against the detent tooth 15 to prevent the tensioning handwheel 13 from resetting, thereby preventing the scroll spring 12 from loosening. The present invention further includes a housing 17. A traction port 18 is provided on the housing 17. The traction rope 2 passes out from inside the traction port 18. A cam wheel 19 is provided on one side of the balancing device 4. The traction rope 2 is led out from the balancing device 4 and passes through the cam wheel 19 and then passes out from the traction port 18. No matter how the balancing device 4 rotates, the traction rope 2 can enter the traction port 18 from one side of the cam wheel 19. The return spring can be any type of spring, and common ones include scroll springs, tension springs or compression springs.

[0031] A faucet includes a base and a water outlet pipe. The water outlet of the water outlet pipe is a movable water outlet part, and the rear end of the water outlet part is connected to any one of the above-mentioned pull-out telescopic balancers. Since the balancing device 4 cancels out the Hooke's law phenomenon of the return spring, the change in the pulling force for pulling the water outlet part is reduced.

[0032] The above has introduced in detail a pull-out telescopic balancer and a faucet provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the present invention and its core idea. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0033] right.

Claims

1. A faucet, comprising a base and a water outlet pipe, wherein the water outlet of the water outlet pipe is a movable water outlet part, characterized in that The rear end of the water outlet part is connected to a telescopic pull balance device. The telescopic pull balance device includes a return spring and a traction rope. One end of the return spring is a traction part, and the force of the traction part increases as the deformation of the spring increases. The telescopic pull balance device also includes a balancing device. The balancing device is arranged on the side of the return spring. The balancing device is provided with a spiral track with a gradually decreasing radius from the outside to the inside. The traction rope is arranged in the track. The balancing device can rotate along the axis. The traction rope includes a fixed end and a traction end. The outer end of the track is connected to the traction part and the fixed end. The traction rope extends out from the inner end of the track to form the traction end. Pulling the traction end of the traction rope drives the balancing device to rotate along the axis, thereby driving the return spring to deform. Releasing the traction rope, the balancing device resets under the action of the return spring. The axis includes a bearing and a central shaft. The bearing is sleeved outside the central shaft. The return spring is a scroll spring. The scroll spring is also sleeved outside the central shaft. The inner end of the scroll spring is fixed to the central shaft, and the outer end of the scroll spring is fixed to the outer end of the balancing device. The distance between two adjacent outer tracks is greater than the distance between two adjacent inner tracks.

2. The faucet according to claim 1, characterized in that The balancing device is in a disc shape.

3. A faucet according to claim 1, characterized in that The middle part of the track bulges outwards, and the high and low tracks are distributed in a stepped shape.

4. A faucet according to claim 1, characterized in that A tensioning handwheel for tightening the scroll spring is sleeved outside the central shaft. A retaining member and retaining teeth are arranged inside the tensioning handwheel. The retaining member is connected to a return torsion spring, and the retaining teeth are arranged on the runner.

5. A faucet according to claim 1, characterized in that It further includes a housing. A traction opening is arranged on the housing. The traction rope passes through the traction opening. A roller is arranged on one side of the balancing device. The traction rope passes through the roller and then passes through the traction opening after leading out from the balancing device.

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