CN105413776A - Water bath lid - Google Patents

Abstract

The invention belongs to the field of heating in laboratories and in particular discloses a water bath lid. The water bath lid comprises a lid, connecting rods and a hopper, wherein the upper ends of the connecting rods are fixedly connected with the lower end of the lid; and the lower ends of the connecting rods are fixedly connected with the upper end of the hopper. The water bath lid has the effect of solving the technical problem that steam water drops fall on sample containers, so that the probability of sample pollution can be reduced.

Description

Water-bath pot cover

Technical field

The present invention relates to laboratory heating art, be specifically related to a kind of water-bath pot cover.

Background technology

Water-bath is mainly used in distilling in laboratory, dry, concentrated, and warm stain chemicals or biological products, also can be used for heated at constant temperature and other humid test, be food, biology, aquatic products, environmental protection, medicine, etc. the indispensable instrument in laboratory, field.Thermostat water bath (ThermostatWaterBath) interior horizontal positioned stainless steel tubular heater, the inside of tank is placed with aluminum shelf with holes.On cover the combination lasso being furnished with different bore, the flask of different bore can be adapted to.Having adjutage on the left of water-bath, is electric box on the right side of thermostat water bath, electric box front panel is equipped with temperature control instrument, power switch.Electrothermal tube and sensor is had in electric box.Its operation principle is sensor is resistance value by the temperature transition of water trough inner water, through integrated amplifier amplification, relatively after, export control signal, effectively control the average heating power of electric heating tube, make water in tank keep constant temperature.When being required to be heated evenly by the object heated, when temperature is no more than 100 DEG C, heating water bath can be used.Water-bath is done with copper or aluminum usually, and lid comprises the circle of multiple overlap, is suitable for the vessel placing different size.

In practical operation, when test tube needs heating water bath, be generally first inserted by test tube in the plate hole of the kickboard that foam or plastics are made, be then placed in water-bath by kickboard, such test tube would not sink to the bottom of a pan, its underpart is heated in water, top is overlapped by kickboard, higher than liquid level, to a certain extent, avoid the moisture in water-bath to enter in vitro, avoid managing interior sample contaminated.But the lower lid surface of water-bath understands the little liquid pearl that the much steam of aggegation is liquefied as usually, and these little liquid pearls, along with the increase of volume, can drop on test tube, which increase by the contaminated probability of sample heated.

Publication number is the Chinese patent document of CN201992833U, discloses one and facilitates push-and-pull lid water-bath, comprise pot body and cleansing bath tub, it is characterized in that being provided with skewed slot on pot body, is provided with pull plate in skewed slot.

But this invention eats the position that skewed slot fixes pull plate, the globule dropped with pull plate drainage.The area of pull plate can not accept residence on the one hand the globule dropped, and the container of below still has contaminated possibility; On the other hand, pull plate is not fixed on water-bath, at placing container or when taking out container, comparatively loaded down with trivial details.

Summary of the invention

The object of the present invention is to provide a kind of water-bath pot cover, to drop the technical problem on shuttle to solve the steam globule.

For achieving the above object, base case of the present invention is: water-bath pot cover, comprises lid, connecting rod and funnel; The upper end of connecting rod is fixedly connected with the lower end of lid, and the lower end of connecting rod is fixedly connected with the upper end of funnel.

Operation principle and the advantage of this programme are: be placed in water-bath by container to be heated, and the position of adjustment lid and container to be heated, makes container to be heated not contact with funnel, cover lid.Because the lower end of lid contacts with the steam in water-bath, lid upper end contacts with the external world, so the temperature of lid is lower than the temperature in water-bath, can meet cold with the steam of end in contact under lid and condense into the globule, funnel is positioned at water-bath, temperature is identical with water-bath kettle temperature, so steam can not condense into the globule on funnel.The globule on lid is large to a certain extent, and can fall down under gravity, drop on funnel, then by collection funnel, the neck along funnel flows down, and because funnel does not contact with the container of heating, so container can not be stained with the globule, avoids contaminated.

The globule fallen from lid caught by funnel, and the globule, after funnel collects, flows in water-bath along filler neck part, because funnel does not contact with heating container, so container would not be stained with the globule, thus reduces the contaminated probability of sample in container.

Preferred version one: based on the preferred version of scheme, funnel is scalable funnel.Scalable funnel can change the length of neck, when the container heated is higher, can suitably be shunk by funnel, for saving larger space in water-bath.

Preferred version two: based on the preferred version of scheme: funnel is eccentric funnel.The neck of eccentric funnel is not in the central authorities of lid, but amesiality, and such structure is convenient heats the larger container of volume in water-bath.

Preferred version three: based on the preferred version of scheme, prioritization scheme one or preferred version two: the neck of funnel is connected with drainage tube.When the lower end of filler neck part and liquid level distant time, the globule falls and easily splashes water droplet, if water droplet spouts in container or the sealing part of container, easily pollutes the sample in container; If install drainage tube at the neck of funnel, under drainage tube can being inserted into liquid level, avoid splashing water droplet, thus preventing pollution.

Preferred version four: the preferably preferred version of three: drainage tube is flexible pipe.Flexible pipe can the trend of just replace tubes as required, better can coordinate container.

Accompanying drawing explanation

Fig. 1 is the structural representation of water-bath pot cover embodiment of the present invention.

Detailed description of the invention

Below by detailed description of the invention, the present invention is further detailed explanation:

Reference numeral in Figure of description comprises: lid 1, connecting rod 2, eccentric funnel 3, flexible pipe 4, container 5.

Embodiment is substantially as shown in Figure 1:

Water-bath pot cover, comprises lid 1, connecting rod 2 and eccentric funnel 3; The upper end of connecting rod 2 is connected with the lower end of the bolt of lid 1, and the lower end of connecting rod 2 is connected with the upper terminal bolt of funnel, and the neck of funnel is arranged with flexible pipe 4, and flexible pipe 4 inserts below liquid level.

Be placed in water-bath by container 5 to be heated, the position of adjustment lid 1 and container to be heated 5, is placed on below liquid level by the outlet of flexible pipe 4, cover lid 1.The globule on lid 1 is large to a certain extent, can fall down under gravity, drop on funnel, then by collection funnel, the neck along funnel flows down, and enters flexible pipe 4, flow in the water of water-bath through flexible pipe 4, container 5 can not be stained with the globule fallen down, so can not be contaminated.

In addition, when funnel is scalable funnel, can regulate the height of funnel according to the height of container 5, convenient higher container 5 heats.Scalable funnel used in embodiment is that Cixi City Sheng He spring Electrical Appliances Co., Ltd produces.

Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.

Claims (5)

1. water-bath pot cover, comprises lid; It is characterized in that: also comprise connecting rod and funnel; The upper end of connecting rod is fixedly connected with the lower end of lid, and the lower end of connecting rod is fixedly connected with the upper end of funnel.

2. water-bath pot cover according to claim 1, is characterized in that, described funnel is scalable funnel.

3. water-bath pot cover according to claim 1, is characterized in that, described funnel is eccentric funnel.

4. water-bath pot cover according to any one of claim 1 to 3, is characterized in that, the neck of described funnel is connected with drainage tube.

5. water-bath pot cover according to claim 4, is characterized in that, described drainage tube is flexible pipe.