Water level height keeping device
A technology for maintaining device and water level height, applied in liquid level control, non-electric variable control, instruments, etc., can solve the problems of waste cost and high cost, and achieve the effect of simple structure and low cost
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Embodiment 1
[0012] Such as figure 1 A kind of water level height keeping device described, comprises straight water pipe 3 and the pillar 9 that is vertically connected with the middle part of straight water pipe 3, and the interior of pillar 9 is provided with the wiring hole 10 that communicates with the inside of straight pipe 3, so The inside of the straight water pipe 3 is provided with a switch device, the switch device includes a fixed ring 6 coaxially arranged with the straight water pipe 3, and the inside of the fixed ring 6 is provided with a sliding rod 7 that can move axially along the fixed ring 6. One end of the rod 7 is provided with a sealing head 4 and the other end of the sliding rod 7 is connected with a backguy 11, and the backguy 11 is connected with a floating ball 12 after passing through the wiring hole 10, and the fixing ring 6 is located inside one end of the sealing head 4 and is also provided with a There is a compression spring 5, and a sealing seat 1 is arran...
Embodiment 2
[0015] This embodiment adds the following structure on the basis of Embodiment 1, specifically: the inside of the straight water pipe 3 is also provided with a rotating column 8, and the pull wire 11 is connected to the sliding rod 7 through the rotating column 8 and the floating ball 12 connections.
[0016] In this embodiment, since the floating ball 12 moves up and down, the contact friction between the backguy 11 and the water straight pipe 3 is very easy to wear and break, causing the device to lose the function of water level adjustment. Therefore, this embodiment reduces the cost of the backguy 11 Abrasion, especially in the straight water pipe 3, there is also a rotating column 8 inside. When the pull wire 11 is pulled up and down, under the action of the rotating column 8, it can not only reduce wear, but also move more flexibly and smoothly, which improves the sensitivity and device of water level adjustment. service life.
Embodiment 3
[0018] This embodiment is optimized as follows on the basis of embodiment 1 or embodiment 2: the sealing end of the sealing head 4 and the end corresponding to the water hole 2 are all tapered surfaces, and the sealing head 4 and The conical surface of the water passage hole 2 is ground by grinding.
[0019] The sealing end of the sealing head 4 of this embodiment and the corresponding end of the water hole 2 are all tapered surfaces, so that the two seals are more fit, and it can ensure that the sealing head 3 will not leak when sealing. At the same time, the sealing head 4 and the The conical surface of the water passage hole 2 is ground by grinding, which can further improve the bonding degree of the two, can ensure the sealing performance, and improve the accuracy of water level adjustment.
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