JPH04101871U - Faucet valve device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to reduce the number of parts by simplifying the structure of a valve device for a faucet. [Structure] The lever holder 9 and the uppermost valve body 7 are made of a self-lubricating resin composition, and are brought into liquid-tight and direct sliding contact. When the lever holder 9 and the valve body 7 are in direct sliding contact, the durability of the faucet valve device is maintained even without the conventional guide plate and O-ring, and water leakage does not occur, reducing the number of parts and manufacturing costs. can be reduced.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was developed to cut off the flow path for tap water faucets, hot/cold water mixer faucets, and hot water washer for toilet bowls. This invention relates to valve devices for water faucets such as replacement faucets.

0002

[Conventional technology]

In general, among the valve devices for faucets used in household water supply systems, hot water and cold water As valve devices for mixing water, those shown in FIGS. 2 to 6 are well known.

0003 This device has an outlet 2 for hot water on the side of a housing 1 that covers the valve device. The base 12 includes an inflow path 3 that communicates with a water pipe or a water heater to supply water or hot water; 4.

0004 Then, the valve body 6 and the valve body are placed on the base 12 in the valve storage recess 5 of the housing 1. 7 and guide plate 8 are stored in a stacked state from the bottom, inside the housing 1. A lever 10 for operating a valve is attached to the held lever holder 9.

[0005] Here, the valve body 6 includes a protrusion 11 provided on the inner diameter surface of the housing 1 and the base 12. The pair of inflow passages 13 and 14 are fixed to the base 12 by fitting with the valve body 7. communicates with the outflow passage 2 and inflow passages 3 and 4 of the housing 1 by a predetermined arrangement of the It is formed in a V-shape. Further, the valve body 7 is a circle having a smaller diameter than the inner diameter of the valve storage recess 5. It is a plate that is sandwiched between the guide plate 8 and the valve body 6 and cannot slide against the valve body 6 and the guide plate 8. In addition to being flexible, the sliding surface for the valve body 6 is cut out to communicate with the outflow path 2. A flow path 15 is provided for the purpose of the present invention.

[0006] Furthermore, a rubber packing 16 is incorporated between the valve body 6 and the base 12. , due to the elasticity of this packing 16, the base 12 and the valve body 6, the valve body 6 and the valve body 7, and the valve body The space between the body 7 and the guide plate 8 is sealed. In addition, the above-mentioned valve body 7 and lever 10 is linked via a link rod 17, and this link rod 17 is connected to the lever holder 9. It is supported by a pin 18, and the valve body 7 is moved by moving the lever 10 up and down and rotating it. By driving and displacing the flow path 15, hot water, cold water, and mixed water are taken out and closed. It is possible to do it.

[0007] In addition, in FIGS. 2 and 3, the valve body 7 is displaced the most to the right in the figure, and the flow passage 15 is connected to both inflows. FIG. 4 shows a closed state in which the flow path 15 is connected to neither of the channels 13 and 14. The position of the valve body 7 communicating with the passage 13 is shown, and hot water or cold water is taken out alone. 5 also shows the position of the valve body 7 where the flow passage 15 communicates with both the inflow passages 13 and 14. It shows the state of the mixed water being taken out.

[0008] The valve device as described above has a state in which the sliding surfaces of the valve bodies 6 and 7 are brought into contact with each other. The system adjusts the flow rate or changes the flow path depending on the situation, and the mixture of hot and cold water is It can be used not only for taps, but also for switching the flow path of hot water washers installed in toilet bowls, etc. I can do it.

[0009] The valve bodies 6 and 7 of such a valve device are made of fluororesin, ultra-high molecular weight polyethylene, or polyethylene. Self-lubricating resin such as lyacetal, molybdenum disulfide, carbon Consists of resin filled with fillers to improve lubricity such as (No. Publication).

0010 Furthermore, the inventors have discovered that the resin component suitable for constituting the valve body is polyether. Imide resin, polyether sulfone resin, carbon fiber, glass fiber, appropriate powder filler added, polyetherketone resin 35-90% by weight and average fiber A resin composition consisting of 10 to 65% by weight of carbon fibers having a diameter of 8 μm or less (Patent Application No. 1-1068) No. 7), polyphenylene sulfide resin 25-80% by weight and average fiber diameter 8μ Resin composition consisting of 20 to 75% by weight of carbon fibers having a diameter of less than m (Japanese Patent Application No. 1-10686) I proposed that.

[0011]

[Problem that the idea aims to solve]

However, the conventional faucet valve device described above has a structure between the lever holder and the topmost valve. Because it goes through the inner plate and packing, it takes a lot of work to incorporate these into manufacturing. This problem was solved by creating a faucet valve device with a simple structure. As a product, it reduces manufacturing costs, does not leak water, and maintains durability. The challenge was to do so.

0012

[Means to solve the problem]

In order to solve the above problems, the faucet valve device of this invention has the lever holder and The valve body and the valve body are made of a self-lubricating resin composition, and these are made liquid-tight and directly A sliding contact structure was adopted.

[0013]

[Effect]

The faucet valve device according to this invention configured as described above has a self-lubricating lever. -Since the holder and valve body are in liquid-tight and direct sliding contact, conventional guide plates and O-rings are not required. is no longer required, reducing the number of parts.

[0014]

【Example】

An embodiment of this invention will be described below based on FIG.

[0015] In the embodiment, a valve made of high hardness ceramics is mounted on the base 12 inside the housing 1. Body 6 and polyphenylene sulfide resin (manufactured by Tosoh Susteel Co., Ltd.: Sasteel) The valve bodies 7 made of steel (CH-30) are stacked one on top of the other in order from the bottom, and are fixed inside the upper part of the housing 1. Made of regulated polyacetal resin (manufactured by Polyplastics: Duracon M90-02) Support the pin 18 on the lever holder 9 and attach the link rod 17 and lever 10. A ring-shaped convex portion 9a that protrudes downward is formed on the lower surface of this lever holder 9. , which is brought into fluid-tight and direct sliding contact with the upper surface of the uppermost valve body 7. this In this case, the pressure on the sliding surface is adjusted by appropriately changing the thickness of the packing 16.

[0016] In the faucet valve device configured as described above, the lever holder 9 and the valve body 7 themselves are self-lubricating. Because of its properties, it is possible to slide in close contact with each other while maintaining a liquid-tight state, and there is no O-ring. There is no water leakage without going through the guide plate or guide plate, and the equipment can be assembled easily due to the small number of parts. This makes it easier.

[0017] The faucet valve device of the above-mentioned example and a guide plate and an O-ring as a comparative example The following practical functional tests were conducted on the faucet valve device (see Figure 2).

(1) Practical function test: Using a single-lever mixer faucet KM300N manufactured by Kitamura Valve Co., Ltd., the valve body 7 and lever holder 9 in FIG. 1 were made of resin as shown in this example, and before the durability test. An initial torque test and a water stop test were conducted. In the torque test, the torque of the lever up and down (water stop, flow, flow rate adjustment) and left and right (hot water, cold water temperature adjustment) was measured using a digital force gauge DFG-2K manufactured by Shinpo Kogyo Co., Ltd. In the test, the lever was set at the lower center (water stopped), water pressure was applied to a maximum of 17.5 kgf/cm ² by a pump, and the maximum water pressure at which no water leaked for 1 minute was measured.

[0019] In these initial tests, those with a torque of 5 kgf/cm or less and a water stop test that completely stopped water at a water pressure of 17.5 kgf/cm ² were tested using a single-lever mixer faucet durability tester (not shown). Connect the lever 10 of the same single-lever mixer faucet as that used in the initial test, and as shown in Figure 6, move the lever 10 from the upper right Ru to the lower right Rd (cold water) → the lower left Ld (hot water 90°C) → the upper left Lu (water stop) → Lower left Ld (hot water 90℃) → Lower center Cd (warm water) → Upper center Cu (stop water) → Lower center Cd (warm water) → Lower right Rd (cold water) → Upper right Ru (water stop) ) was taken as one cycle (required time: approximately 25 seconds), and a durability test of 200,000 cycles was conducted, and the torque and water-stopping properties after the 100,000-cycle and 200,000-cycle tests were confirmed using the same method as the initial test. In addition, the same practical function test as described above was also conducted on a faucet valve device in which the valve body 6 was made of alumina and the comparative example (conventional example shown in FIG. 2).

[0020] As a result, there was no discernible difference between the test results of the above-mentioned example and the comparative example, and in both cases there was no leakage at a maximum water pressure of 17.5 kgf/cm ² before and after the test, and the handle torque was low and stable. There were no problems in using it.

[0021]

【effect】

As explained above, the faucet valve device of this invention is a valve made of self-lubricating resin. Since the body and lever holder are in liquid-tight and direct sliding contact, there are few parts. It can be mass-produced in small quantities at low cost, and requires no effort to assemble. Also, self The use of a lubricating resin makes the lever easy to operate, and prevents water from leaking or not being able to discharge water. This eliminates the problem and makes it possible to process a large number of parts in a short time even when post-processing valve bodies etc. Ru. Therefore, it can be said that the significance of this idea is extremely large.

[Brief explanation of drawings]

[Figure 1] Longitudinal cross-sectional view of the example

[Figure 2] Longitudinal cross-sectional view of conventional example

[Figure 3] Cross-sectional view of a valve body explaining the operating mechanism of a faucet

[Fig. 4] Cross-sectional view of a valve body explaining the operating mechanism of a faucet

[Fig. 5] Cross-sectional view of a valve body explaining the operating mechanism of a faucet

[Fig. 6] Perspective view showing the external appearance of the faucet

[Explanation of symbols]

1 Housing 2 Outflow path 3,4 Inflow path 6,7 Valve body 9 Lever holder 10 Lever 12 base 13, 14 Inflow channel 15 Distribution path 16 Packing 19 O-ring

Claims (1)

[Scope of utility model registration request] Claim 1: Two or more valve bodies are slidably superimposed on a base inside the housing, a notch or opening for opening and closing a flow path is formed in these valve bodies, and the uppermost valve body is provided with a notch or opening for opening and closing a flow path. In this valve device for a faucet, a lever for sliding operation is connected and the lever is held in a lever holder inside the housing, in which the lever holder and the valve body are formed of a self-lubricating resin composition. A valve device for a faucet characterized by liquid-tight and direct sliding contact.