CN2840313Y

CN2840313Y - The thermometer control switch

Info

Publication number: CN2840313Y
Application number: CN 200520087802
Authority: CN
Inventors: 张耀; 张鹏; 刘莹
Original assignee: 张耀
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2006-11-22
Anticipated expiration: 2015-09-30

Abstract

A kind of thermometer control switch, comprising: the glass envelope that glass tube, glass tube lower end have, an amount of mercury is housed in the glass envelope, its characteristics are: the glass tube upper end open, the sliding tube of hollow sealing is installed in the glass tube, and sliding tube floats on the interior mercury liquid level of glass tube, and stretch out outside the glass tube sliding tube upper end, the sliding tube upper end has contact, and sliding tube is relative with glass tube to slide up and down; The glass tube upper end is installed with fixed head, is equipped with one on the fixed head and closes double control switch, and a pass double control switch slides up and down with fixed head and is connected.The utility model is simple in structure, and cost is low, can reach the effect of automatic control room temperature.

Description

The thermometer control switch

Technical field

The utility model relates to a kind of mercurial thermometer, relates in particular to a kind of thermometer control switch.

Background technology

It is a sealing for the present mercurial thermometer that uses, the very thin and uniform glass tube of internal diameter, the lower end of pipe is a glass envelope, in an amount of mercury is housed, glass tube is marked with scale, when temperature change, because liquid expands with heat and contract with cold, liquid position in the pipe just can be read temperature just along with change from the scale of liquid level, but this thermometer is only simply to express variation of temperature, it is a monolithic entity, can not link to each other with relevant temperature control device or other devices, can not directly control them according to variation of temperature, thereby more purposes can not be arranged; Also having a kind of thermometer control electric switch of use at present is to be connected with digital-control circuit on thermometer, and through the conversion of digital-control circuit control apparatus again, the thermometer control electric switch structure complexity of this kind structure involves great expense by variation of temperature.

Summary of the invention

The purpose of this utility model provides a kind of thermometer control switch simple in structure.

For achieving the above object, the technical solution adopted in the utility model is: a kind of thermometer control switch, comprising: the glass envelope that glass tube, glass tube lower end have, an amount of mercury is housed in the glass envelope, and its characteristics are: the glass tube upper end open is equipped with the sliding tube that hollow is sealed in the glass tube, sliding tube floats on the interior mercury liquid level of glass tube, stretch out outside the glass tube sliding tube upper end, and the sliding tube upper end has contact, and sliding tube is relative with glass tube to slide up and down; The glass tube upper end is installed with fixed head, is equipped with one on the fixed head and closes double control switch, and a pass double control switch slides up and down with fixed head and is connected.

The utility model has the advantages that: owing in the glass tube in the utility model the sliding tube that can slide up and down is installed, along with variation of temperature, sliding tube slides up and down in glass tube, the contact of sliding tube upper end touches one on the fixed head and closes double control switch, one closes the external heater of double control switch may command, just can come temperature in the control room according to set point; Use the utility model is simple in structure, and cost is low, can reach the effect of automatic control room temperature.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a left view of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further described:

A kind of thermometer control switch, as shown in Figure 1, 2, comprising: the glass envelope 2 that glass tube 3, glass tube 3 lower ends have, be equipped with an amount of mercury 1 in the glass envelope 2; Glass tube 3 upper end open are equipped with the sliding tube 4 of hollow sealing in the glass tube 3, sliding tube 4 floats on the mercury liquid level in the glass tube 3, and stretch out outside the glass tube 3 sliding tube 4 upper ends, and sliding tube 4 upper ends have contact 7, sliding tube 4 and glass tube 3 relative sliding up and down; Glass tube 3 upper ends are installed with fixed head 6, are equipped with common one on the fixed head 6 and close double control switch 5, and close double control switches 5 and slide up and down with fixed head 6 and be connected.

During use, because one in the utility model closes double control switch and can slide on fixed head, so two contacts of closing double control switch can be placed in and the corresponding position of thermometer design temperature, when indoor temperature descends, sliding tube in the glass tube along with the decline of mercury liquid level to lower slider, when mercury liquid level drops to certain temperature, the contact of sliding tube upper end touches a contact of a pass double control switch, one closes the double control switch conducting, and external heater begins the starting heat radiation, and room temperature begins to rise, mercury liquid level in the glass tube begins to rise, the promotion sliding tube rises, and when the mercury liquid level in the glass tube rose to certain temperature, the contact on the sliding tube touched another contact of a pass double control switch, external heater is closed, room temperature begins to descend, and the mercury liquid level also begins to descend, and sliding tube descends.So circulation can be controlled at indoor temperature in the scope of setting automatically.

The novel beneficial effect of this reality is: since the utility model in glass tube in be equipped with can about The sliding tube that slides, sliding tube floats on the mercury liquid level, and along with the variation of temperature, sliding tube is at glass Slide up and down in the glass pipe, the contact of sliding tube upper end touches a pass double control switch of setting on the fixed head, One closes double control switch can control external heater, just can come in the automatic control room according to setting value Temperature, do not need manually manually to start heater according to the variation of indoor temperature.

Claims

1, a kind of thermometer control switch, comprising: the glass envelope (2) that glass tube (3), glass tube (3) lower end have, an amount of mercury (1) is housed in the glass envelope (2), it is characterized in that: glass tube (3) upper end open, the sliding tube (4) of hollow sealing is installed in the glass tube (3), sliding tube (4) floats on the interior mercury liquid level of glass tube (3), stretch out outside the glass tube (3) sliding tube (4) upper end, sliding tube (4) upper end has contact (7), sliding tube (4) and relative the sliding up and down of glass tube (3); Glass tube (3) upper end is installed with fixed head (6), is equipped with one on the fixed head (6) and closes double control switch (5), and a pass double control switch (5) slides up and down with fixed head and is connected.