CN201866329U - Main-control switching double-handle temperature-control valve core - Google Patents

Abstract

The utility model discloses a main-control switching double-handle temperature-control valve core, which comprises a valve core body, wherein the valve core body is provided with an annular cool water inlet and an annular hot water inlet, a temperature-control valve core is rotatablely arranged inside the valve core body, the lower end of the temperature-control valve core is fixedly connected with a movable piece, a fixed piece which is used for switching a water path after being matched with the movable piece is arranged below the movable piece, a valve cover is fixedly connected with the lower part of the fixed piece, and the valve cover is fixedly connected with the lower end of the valve core body; and an annular cool water inlet and an annular hot water inlet of the temperature-control valve core respectively correspond to the cool water inlet and the hot water inlet of the valve core body, and a mixed water outlet of the temperature-control valve core is communicated with an overflow port of the movable piece. The valve core provided by the utility model simultaneously has a main control function, a switching function and a temperature adjusting function, and has the characteristics of simplicity in installation and convenience in application.

Description

Main control switching double handle temperature control spool

technical field

The utility model relates to a temperature control valve core, in particular to a main control switching dual-handle temperature control valve core with main control function, switching function and temperature adjustment function.

Background technique

The main structure of the temperature control valve core used in the existing thermostatic faucet (especially the thermostatic shower faucet) includes a valve body with a cold water inlet, a hot water inlet and a mixed water outlet, a piston slidably arranged in the valve body, a A thermosensitive element connected with the piston includes a temperature-sensing end and a telescoping end, a push rod and a spring abutting against the heat-sensitive element respectively, and an adjusting rod connected with the ejector rod. The temperature-sensing end of the thermal element is located at the outlet of the mixed water, and the telescopic end is connected to the ejector rod. When the water temperature of the mixed water outlet changes, the temperature-sensing end of the thermal element senses the temperature and makes the telescopic end expand or contract accordingly, thereby The piston is pushed to move to adjust the area ratio of the cold water inlet and the hot water inlet, thereby changing the ratio of the flow rate of the cold and hot water inlets to achieve a constant outlet water temperature. However, the existing temperature control spool does not have the main control function and switching function. Therefore, it is necessary to set up another switching spool with the main control function to adjust the water outlet, water stop and switching functions of the faucet, but this also makes the faucet The installation is more complicated and the installation cost is higher.

Utility model content

The utility model provides a main control switching double-handle temperature control valve core with main control function, switching function and temperature adjustment function at the same time, so as to solve the above-mentioned problems existing in the prior art. The temperature control valve core provided by the utility model has the main control function, the switching function and the temperature adjustment function at the same time, and has the characteristics of simple installation and convenient use.

The utility model adopts the following technical solutions:

The main control switching dual-handle temperature control valve core includes a valve core body, which is characterized in that: the valve core body is provided with an annular cold water inlet and an annular hot water inlet, and a temperature control valve core is rotatably set inside. The lower end of the control valve core is fixedly connected with a moving piece, and a fixed piece is arranged under the moving piece for switching the waterway after cooperating with it, and a valve cover is fixedly connected under the fixed piece, and the valve cover is fixedly connected with the lower end of the valve core body; The annular cold water inlet and the annular hot water inlet of the temperature control valve core correspond to the cold water inlet and the hot water inlet of the valve core body, and the mixed water outlet thereof communicates with the water passage hole of the moving plate.

When in use, cold water and hot water flow into the cold water inlet and hot water inlet of the temperature control valve core respectively through the cold water inlet and hot water inlet on the valve core body. The mixed water outlet of the core flows into the water hole of the fixed piece, and then through the switch between the fixed piece and the moving piece, the water channel switching or the main control switching is completed.

In a recommended embodiment, the cold water inlet of the valve core body is located above the hot water inlet of the valve core body, and the cold water inlet of the temperature control valve core is located at the hot water inlet of the temperature control valve core position above.

In a recommended embodiment, the temperature control valve core includes a temperature control valve core body with the cold water inlet, the hot water inlet and the mixed water outlet, a thermal element with a temperature sensing end and a telescopic end And a valve plug slidably arranged inside the temperature control valve core body, the valve plug is fixedly connected with the thermal element, the inside of the temperature control valve core body is located above the cold water inlet and below the hot water inlet The positions of the valve plugs are all formed with annular protrusions, and the valve plug is limited by the upper and lower annular protrusions. There is a gap between it and the upper annular protrusion for cold water to flow in, and a gap for hot water supply between it and the lower annular protrusion. The inflow gap; the heat-sensitive element is axially limited by an elastic pressure-resisting device, and its temperature-sensing end is close to the mixed water outlet.

In a recommended embodiment, the elastic pressing device includes a lower spring, a push rod and an elastic force adjustment device; the telescopic movement of the lower spring is synchronized with the thermal element, and one end of the lower spring abuts against the temperature control device downwards. The other end of the inner bottom surface of the valve core abuts against the valve plug; the lower end of the push rod abuts against the telescopic end of the heat-sensitive element, and the upper end abuts against the elastic force adjusting device.

In a recommended embodiment, the elastic force adjustment device includes an upper spring, a plunger chamber for the plunger to slide therein, and an adjustment rod; one end of the upper spring abuts upward on the top surface of the plunger chamber, The other end abuts against the ejector rod downward; the ejector rod cavity can move up and down in the temperature control valve core body, and is linked with the adjustment rod; the adjustment rod passes through the temperature control valve core body upwards, and passes through a The collar is rotatably arranged on the upper end of the temperature control valve core body. The elastic adjustment device here has a protective effect on the heat-sensitive element, that is, to prevent permanent deformation of the heat-sensitive element when the outlet water temperature is too high. The use principle of this part of the structure is known in the prior art and will not be described here. Write in detail.

In a recommended embodiment, the water passage hole of the moving piece includes a groove corresponding to the outlet of the mixed water and a through hole communicating with the groove and 1/8 to 1/4 of the circumference of the moving piece of the valve cover, Two water passage holes are arranged on the fixed piece, and the shapes and positions of the two water passage holes of the fixed piece correspond to the through holes of the moving piece.

The "up" and "down" mentioned in the utility model are based on the direction of the valve core in normal use, that is, the position of the mixed water outlet is the "down" side, and the position of the adjusting rod is the top.

Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. Likewise, all publications, patent applications, patents, and other references mentioned herein can be incorporated by reference into this utility model.

As can be seen from the above description of the utility model, compared with the prior art, the utility model has the following characteristics:

1) The utility model has the main control function, switching function and temperature adjustment function at the same time, and has the characteristics of simple installation and convenient use;

2) The elastic force adjustment device has a protective effect on the heat-sensitive element, that is, it can prevent the heat-sensitive element from being permanently deformed when the outlet water temperature is too high.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model;

Fig. 3 is a schematic diagram of explosion of the utility model.

Detailed ways

The specific embodiment of the utility model is described below with reference to accompanying drawing.

The main control switching double-handle temperature control valve core, as shown in Figure 1, Figure 2 and Figure 3, includes a valve core body 1, and the valve core body 1 is provided with an annular cold water inlet 11 and an annular hot water inlet from top to bottom. Inlet 12, in which a temperature control valve core 2 is rotatably arranged.

The lower end of the temperature control valve core 2 is fixedly connected with a moving piece 3, and a fixed piece 4 is arranged under the moving piece 3 to switch the waterway after cooperating with it. The valve cover 5 is fixedly connected with the lower end of the valve core body 1 . The moving piece 3 is provided with a water hole 31, the water hole 31 includes a groove 311 corresponding to the mixed water outlet and a through hole 312 communicating with the groove 311, 1/5 of the circumference of the valve cover, the fixed piece 4 Two water passage holes 41 are provided on the top, and the shapes and positions of the two water passage holes 41 of the fixed piece correspond to the through holes 312 of the moving piece.

The annular cold water inlet 201 and the annular hot water inlet 202 of the temperature control valve core 2 are set corresponding to the cold water inlet 11 and the hot water inlet 12 of the valve core body 1 , and its mixed water outlet 203 is connected to the water passage hole 31 of the moving piece 3 .

The temperature control valve core 2 includes a temperature control valve core body 21 with a cold water inlet 201, a hot water inlet 202 and a mixed water outlet 203, a thermosensitive element 22 with a temperature sensing end and a telescopic end, and a thermosensitive element 22 slidably arranged on the temperature control valve core. Control the valve plug 23 inside the valve core body 21, the valve core body is composed of a positioning frame 211 and a water passing body 212 fixedly connected to the lower end of the positioning frame 211, the valve plug 23 is fixedly connected with the thermal element 22, and the temperature control valve The inner side of the core body 21 forms an annular protrusion at the position above the cold water inlet 201 and below the hot water inlet 202, and the valve plug 23 is limited by the upper and lower annular protrusions, and the distance between it and the upper annular protrusion There is a gap for cold water to flow in, and a gap for hot water to flow in between it and the lower annular protrusion; the thermal sensor 22 is axially limited by an elastic pressure-resisting device, and its temperature-sensing end is close to the mixed water outlet 203 .

The elastic resisting device includes a lower spring 61, a push rod 62 and an elastic force adjustment device; the telescopic movement of the lower spring 61 is synchronized with the thermosensitive element 22, and one end thereof abuts against the inner bottom surface of the temperature control valve core body 21 downward, and the other end One end abuts against the valve plug 23 upwards; the lower end of the push rod 62 abuts against the telescopic end of the thermal element 22 , and the upper end abuts against the elastic force adjusting device.

The elastic force adjusting device comprises an upper spring 71, a plunger cavity 72 for sliding the pushrod 62 therein, and a regulating rod 73; one end of the upper spring 71 abuts against the inner top surface of the pushrod cavity 72 upwards, and the other end abuts downwards. Connected to the ejector rod 62; the ejector rod cavity 72 can move up and down in the temperature control valve core body 21, and is linked with the adjustment rod 73; It is rotatably arranged on the upper end of the temperature control valve core body 21 . Rotating the adjusting rod 73 can make the ejector rod cavity 72 threadedly connected with it move up or down, so as to change the telescopic length of the telescopic end of the thermosensitive element 22, thereby achieving the function of adjusting different outlet water temperatures.

During use, cold water and hot water flow into the cold water inlet 201 and the hot water inlet 202 of the temperature control valve core body 21 respectively through the cold water inlet 11 and the hot water inlet 12 on the valve core body 1. When the temperature of the mixed water outlet 203 is too high, At this time, the thermosensitive element 22, which is arranged near the mixed water outlet 203, senses the temperature and causes the telescopic end to expand, extruding the lower spring 61, and driving the valve plug 23 to move towards the mixed water outlet 203 direction. At this time, the valve plug 23 and the The gap between the lower annular protrusions becomes smaller, and the hot water inlet area decreases. At the same time, the gap between the valve plug 23 and the upper annular protrusion increases accordingly, and the cold water inlet area increases, so as to properly reduce the mixed water outlet. 203; in contrast, when the temperature of the mixed water outlet 203 is too low, the temperature-sensing end of the thermosensitive element 22 contracts, and the lower spring 61 relaxes, driving the valve plug 23 to move in the opposite direction of the mixed water outlet 203. At the same time, the gap between the valve plug 23 and the lower annular protrusion becomes larger, and the hot water inlet area increases. At the same time, the gap between the valve plug 23 and the upper annular protrusion decreases accordingly, and the cold water inlet area decreases. To appropriately increase the outlet water temperature of the mixed water outlet 203, and achieve the effect of constant temperature of the outlet water. Then, the water flows from the mixed water outlet 203 of the temperature control valve core 2 into the water passage hole 31 of the stator, and then switches between the stator 4 and the moving plate 3 to complete the water channel switching or main control switching.

The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the above-mentioned embodiment, and any other changes, modifications and substitutions made without departing from the spirit and principle of the present utility model , combination, and simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present utility model.

Claims (6)

1. The main control switching dual-handle temperature control valve core, including a valve core body, is characterized in that: the valve core body is provided with an annular cold water inlet and an annular hot water inlet, and a temperature control valve core is rotatably set inside it. The lower end of the temperature control valve core is fixedly connected with a moving piece, and a fixed piece is arranged under the moving piece to switch the waterway after cooperating with it, and a valve cover is fixedly connected under the fixed piece, and the valve cover is fixed to the lower end of the valve core body. Connection; the annular cold water inlet and annular hot water inlet of the temperature control valve core correspond to the cold water inlet and hot water inlet of the valve core body, and the mixed water outlet is connected to the water hole of the moving plate. 2. According to the main control switching dual-handle temperature control valve core according to claim 1, it is characterized in that: the cold water inlet of the valve core body is located above the hot water inlet of the valve core body, and the temperature The cold water inlet of the control valve core is located above the hot water inlet of the temperature control valve core. 3. According to the main control switching dual-handle temperature control valve core described in claim 2, it is characterized in that: the temperature control valve core includes a valve with the cold water inlet, the hot water inlet and the mixed water outlet The temperature control valve core body, a heat sensitive element with a temperature sensing end and a telescopic end, and a valve plug slidably arranged inside the temperature control valve core body, the valve plug is fixedly connected with the heat sensitive element, and the temperature control valve core The inner side of the body forms annular protrusions at the position above the cold water inlet and below the hot water inlet, the valve plug is limited by the upper and lower annular protrusions, and there is a space between the upper annular protrusion and the upper annular protrusion for cold water. The inflow gap is separated from the lower annular protrusion by a gap for hot water inflow; the heat-sensitive element is axially limited by an elastic resisting device, and its temperature-sensing end is close to the mixed water outlet. 4. According to claim 3, the main control switching dual-handle temperature control valve core is characterized in that: the elastic resisting device includes a lower spring, a push rod and an elastic force adjustment device; the telescopic movement of the lower spring Synchronized with the thermosensitive element, one end abuts against the inner bottom surface of the temperature control valve core body downward, and the other end abuts upward against the valve plug; the lower end of the ejector rod abuts against the telescopic end of the thermosensitive element, and the upper end Then abut against the elastic force adjusting device. 5. According to claim 4, the main control switching double-handle temperature control valve core is characterized in that: the elastic force adjustment device includes an upper spring, a ejector rod chamber for the ejector rod to slide therein, and an adjustment rod One end of the upper spring abuts against the top surface of the ejector rod chamber upwards, and the other end abuts against the ejector rod downward; the ejector rod chamber can move up and down in the temperature control valve core body, and is linked with the adjustment rod ; The adjusting rod passes through the temperature control valve core body upwards, and is rotatably arranged on the upper end of the temperature control valve core body through a collar. 6. According to claim 1 or 2 or 3 or 4 or 5, the main control switching dual-handle temperature control valve core is characterized in that: the water passage hole of the moving piece includes a groove corresponding to the mixed water outlet And a through hole connected with the groove, 1/8~1/4 of the circumference of the moving plate of the valve cover, two water holes are arranged on the fixed plate, and the shapes and positions of the two water holes of the fixed plate correspond to In the through hole of the moving piece.

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