CN201772626U - Water heater knob switch protective cover - Google Patents

Abstract

The utility model discloses a water heater knob switch protective cover comprising a fixing part and a sliding cover buckled on the fixing part, wherein the bottom of the fixing part is provided with a gear, the sliding cover is provided with a rack which is matched with the gear in a transmission way, the sliding cover can slide on the fixing part through the transmission matching between the rack and the gear, and the upper part of the sliding cover is also provided with at least one rolling wheel which can roll on the surface of the fixing part. When the sliding cover slides down from the upper end of the fixing part, a knob switch on the fixing part can be exposed. Through the transmission way of the gear and rack, the sliding cover can smoothly slide on the fixing part, is simple in structure and convenient to use, overcomes the shortcomings in the prior art that a door cover type protective cover occupies large space and a sliding closure type protective cover of a mobile phone is not easy to slide, and provides a very practical protective cover for the water heater knob switch.

Description

A kind of water heater rotary switch over cap

Technical field

The utility model relates to the rotary switch over cap of a kind of over cap, particularly a kind of water heater.

Background technology

Current, water heater has goed deep into huge numbers of families, becomes one of household electrical appliance of family's indispensability.Yet, there is foreign matter to fall into the rotary switch place easily outside if the rotary switch of water heater is exposed, with the rotary switch chucking, cause knob not work.With reference to figure 1, the over cap that some water heater rotary switches partly dispose in the prior art, but the similar Yishanmen of this over cap structure when door closure 100 is opened, can take certain space, use inconvenience.In addition, the over cap of the rotary switch of some water heater part is the slip lid that is similar to slide phone, and its structure leads by two guide pillars, but wherein guide pillar bending, will influence the slip smoothness of over cap, also can make troubles to the user.

Summary of the invention

For addressing the above problem, the utility model provides a kind of over cap that can effectively protect the water heater rotary switch, and it has characteristics simple in structure, flexible and convenient to use.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of water heater rotary switch over cap; comprise fixture and the slip lid that is fastened on the fixture; the bottom of described fixture is provided with gear; described slip lid is provided with the tooth bar that cooperates with described gear drive; described slip lid can be engaged on the fixture by the transmission of described tooth bar and described gear and slide; the top of described slip lid also is provided with at least one roller that can roll on the fixture surface, and when slip lid slided down on fixture, the rotary switch on the fixture can reveal.

As improvement of the technical scheme, described gear is provided with two altogether, and links together by gear shaft.

As further improvement in the technical proposal, be provided with spring between described fixture and the slip lid, an end of described spring is fixed on the fixture, and the other end is fixed on the slip lid.

As further improvement in the technical proposal, described fixture is provided with cushion pad, and described slip lid upper end is provided with and can be cushioned the shoulder top that pad blocks.

The beneficial effects of the utility model: by the rack-and-pinion kind of drive; slip lid of the present utility model can slide on fixture smoothly; simple in structure; easy to use; overcome take up room big and mobile phone sliding covers formula over cap of door cover type over cap in the prior art and be difficult for the shortcoming of sliding, for the water heater rotary switch provides a kind of very over cap of practicality.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a door cover type over cap structural representation in the prior art;

Fig. 2 is the utility model structural representation;

Fig. 3 is the utility model slip lid closed condition schematic diagram;

Fig. 4 is the utility model slip lid open mode schematic diagram;

Fig. 5 is the utility model cushion pad working state schematic representation.

The specific embodiment

Referring to figs. 1 through Fig. 5; a kind of water heater rotary switch over cap of the present utility model; comprise fixture 1 and the slip lid 2 that is fastened on the fixture 1; the bottom of described fixture 1 is provided with gear 3; described slip lid 2 is provided with the tooth bar 4 that cooperates with described gear 3 transmissions; described slip lid 4 can be engaged on the fixture 1 by the transmission of described tooth bar 4 and described gear 3 and slide; the top of described slip lid 4 also is provided with at least one roller 5 that can roll on fixture 1 surface; when slip lid 4 when fixture 1 upper end slides down; rotary switch 11 on the fixture 1 can reveal, and is convenient for people to water heater is operated.By the rack-and-pinion kind of drive; slip lid of the present utility model can slide on fixture smoothly; simple in structure; easy to use; overcome take up room big and mobile phone sliding covers formula over cap of door cover type over cap in the prior art and be difficult for the shortcoming of sliding, for the water heater rotary switch provides a kind of very over cap of practicality.

As preferred implementation, the right and left symmetry is installed the inboard of four rolling 5 at slip lid 2, doing one like this is that slip lid 2 is slided more smoothly, the 2nd, play a supportive role, because slip lid 2 is bigger, the regional less of rack-and-pinion is installed, and all the other parts that suspend can support by roller 5, avoid slip lid 2 suspension area depression.

In conjunction with Fig. 3, in order to guarantee smoothness that the utility model slip lid 2 slides and the height uniformity of the right and left, as preferably, described gear 3 is provided with two altogether, and links together by gear shaft 6.Like this, two gears rotate synchronously, can effectively improve slip lid 2 the right and lefts sliding mode height unanimity.

In conjunction with Fig. 4, as preferably, can also between fixture 1 and slide block 2, be provided with spring 7, an end of described spring 7 is fixed on the fixture 1, and the other end is fixed on the slip lid 4.As preferably, spring 7 is provided with two altogether, and symmetry is installed in the both sides of whole protecting lid respectively.Like this, when the slip slip lid, only need to give 2 one driving forces of slip lid gently, spring 7 can deform, and the power after spring 7 distortion can drive slip lid 2 motions.For example, slip lid 2 gently upwards promotes slip lid 2 with have gentle hands when opening, and spring 7 can back into closed condition with slip lid 2 along the direction of power.

In conjunction with Fig. 5, in addition, and described fixture 1 is provided with cushion pad 12, and described slip lid 4 upper ends are provided with and can be cushioned the shoulder top 41 that pad blocks.Doing one like this is that cushion pad 12 can be used as spacing when slip lid 2 during to lower slider; The 2nd, because 2 motions of spring 7 boosting slip lids are arranged, the bad control of the power of spring 7, when slip lid 2 arrived spacing position, cushion pad 12 can be eliminated the impact force of slip lid 2.

Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims (4)

1. water heater rotary switch over cap; comprise fixture (1) and be fastened on slip lid (2) on the fixture (1); it is characterized in that: the bottom of described fixture (1) is provided with gear (3); described slip lid (2) is provided with the tooth bar (4) that cooperates with described gear (3) transmission; described slip lid (4) can be engaged in fixture (1) and go up slip by the transmission of described tooth bar (4) and described gear (3); the top of described slip lid (4) also is provided with at least one roller (5) that can roll on fixture (1) surface; when slip lid (4) slided down on fixture (1), the rotary switch (11) on the fixture (1) can reveal.

2. water heater rotary switch over cap according to claim 1 is characterized in that: described gear (3) is provided with two altogether, and links together by gear shaft (6).

3. water heater rotary switch over cap according to claim 1 is characterized in that: be provided with spring (7) between described fixture (1) and the slip lid (4), an end of described spring (7) is fixed on the fixture (1), and the other end is fixed on the slip lid (4).

4. according to claim 1 or 3 described water heater rotary switch over caps, it is characterized in that: described fixture (1) is provided with cushion pad (12), and described slip lid (4) upper end is provided with and can be cushioned the shoulder top (41) that pad blocks.

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