Simple and small automatic reset liquid expansion type temperature controller

Abstract

The utility model relates to a simple small automatic reset liquid expansion type temperature controller, which comprises a fixed support, a temperature adjusting rod, a diaphragm capsule and a temperature control module, the temperature adjusting rod, the diaphragm capsule and the temperature control module are coaxially arranged on the fixed support, a main body of the fixed support is of a U-shaped frame structure and forms an inner groove, and two ends of the fixed support are provided with connection matching parts. A fastening connecting part corresponding to the connecting matching part is arranged on the opposite side of the temperature control module, the temperature control module is connected to one end of the fixing support in a matched mode through the fastening connecting part and the connecting matching part, the pressed end of the temperature control module stretches into the inner groove, the temperature adjusting rod is connected to a base of the fixing support in a threaded mode, and the inner end of the temperature adjusting rod is matched with one end of the diaphragm capsule in a pushing mode. The other end of the diaphragm capsule abuts against or is adjacent to the pressed end of the temperature control module, and the diaphragm capsule is connected with a temperature sensing cylinder through a capillary tube. The liquid expansion type temperature controller is simple in structure, easy and convenient to assemble, small in size, wide in application range, reliable in action, more accurate in temperature control, stable and reliable in performance and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of temperature controller, concretely is a simple and small automatic reset liquid expansion type temperature controller. BACKGROUND

[0002] The existing liquid expansion type temperature controller is mainly used in the temperature control occasions such as household electrical appliances industry, electric heating equipment and refrigeration industry.The working principle of the existing liquid expansion type temperature controller is that when the temperature of the controlled object changes, the substance in the temperature sensing cylinder or temperature sensing cap of the temperature sensing part of the temperature controller is generally liquid, and corresponding thermal expansion and cold shrink physical phenomenon volume change occurs, and the diaphragm box connected with the temperature sensing part expands or shrinks.According to the principle of lever, the switch on-off action is driven, and the liquid expansion type temperature controller reaches the constant temperature purpose, which has the performance characteristics of accurate temperature control, stable and reliable, small temperature difference between start and stop, large temperature control adjustment range, large overload current, etc., but the existing liquid expansion type temperature controller is generally large in size, and requires large installation space, therefore, it is necessary to improve the existing liquid expansion type temperature controller. SUMMARY

[0003] The utility model discloses a simple and small automatic reset liquid expansion type temperature controller with simple and reasonable structure.

[0004] A simple and small automatic reset liquid expansion type temperature controller, comprising a fixed support and a temperature adjusting rod, a diaphragm box and a temperature control module coaxially arranged on the fixed support, the main body of the fixed support is in the shape of a "n" type frame structure and forms an inner groove, and the both ends of the fixed support are provided with connecting matching parts, the temperature control module is provided with fastening connecting parts corresponding to the connecting matching parts on the opposite side, the temperature control module is connected with the connecting matching parts on the fixed support through the fastening connecting parts, and the pressure receiving end of the temperature control module is inserted into the inner groove, the temperature adjusting rod is screw-connected to the base of the fixed support, and the inner end of the temperature adjusting rod is in abutting connection with one end of the diaphragm box, the other end of the diaphragm box is in abutting connection or adjacent to the pressure receiving end of the temperature control module, and the diaphragm box is connected with a temperature sensing cylinder through a capillary tube.

[0005] The utility model also can solve the problem by the following technical measures:

[0006] As a more specific scheme, the temperature adjusting rod is provided with an axial through hole, one end of the diaphragm box is provided with a guide rod, the guide rod is inserted into the axial through hole, a temperature adjusting rod is screw-connected into the axial through hole, and the temperature adjusting rod is adjustably abutting on the upper end of the guide rod.

[0007] As a further scheme, the temperature control module comprises a jump body, the jump body is provided with an opening corresponding to the pressure receiving end, a steel sheet capable of being deformed by stimulation is connected at the opening, the other end of the diaphragm box is provided with a protrusion abutting or adjacent to the steel sheet, and a on-off switch connected in series on a lead line is arranged in the jump body, and the on-off switch abuts against the steel sheet through a movable push rod.

[0008] As a further scheme, the jump body comprises a main body shell, the main body shell is provided with a steel sheet support block at the top, a guide through hole for linear sliding cooperation with the movable push rod is arranged in the center of the steel sheet support block, the steel sheet is placed on the steel sheet support block and fixed by a cover, and the opening is arranged on the cover.

[0009] As a further scheme, the on-off switch comprises a movable contact and a static contact arranged in the main body shell, the movable contact and the static contact are provided with contact heads capable of elastically touching each other at one end, and the other end of the movable contact and the static contact is connected with a rivet, the rivet extends out of the bottom of the main body shell and is connected with a connecting sheet respectively.

[0010] As a further scheme, the fastening connection part comprises a connecting lug connected to the cover on the opposite side and a separate fixing bolt, and a through hole is arranged on the connecting lug; the connecting matching part comprises a flange bent outward from the side of the fixing support, the flange abuts against the connecting lug and is provided with a fastening screw hole corresponding to the through hole, and the fixing bolt is arranged through the through hole and the fastening screw hole to realize assembly connection of the temperature control module and the fixing support.

[0011] As a further scheme, an adjusting screw hole is arranged on the base of the fixing support, an external thread part threadedly matched with the adjusting screw hole is arranged on the outer side of the temperature adjusting rod, a limiting swing block connected with the temperature adjusting rod and rotated with the temperature adjusting rod is arranged on the outer side of the temperature adjusting rod, and a limiting baffle extending from the base of the fixing support is arranged to control the forward and reverse reciprocating swing of the limiting swing block.

[0012] As a further scheme, the two side plates of the fixing support are respectively connected to the end portions of the base and downwardly extended, the two side edges of the base are upwardly folded through continuous bending to form connecting feet, and mounting screw holes for assembling the liquid expansion type temperature controller are arranged on the connecting feet.

[0013] As a further scheme, the fixing support is integrally made of a metal material, and a bendable soft edge is punched outward on one of the side plates, at least one section of the capillary tube is sleeved with a protective sleeve, and the protective sleeve is clamped on the fixing support through the bendable soft edge.

[0014] As a further scheme, a cut is arranged on the outer end of the temperature adjusting rod along the length direction, and at least the upper part of the temperature adjusting rod is exposed in the cut.

[0015] The utility model discloses a beneficial effect as follows:

[0016] The utility model discloses a simple and small automatic reset liquid expansion type temperature controller, this liquid expansion type temperature controller simple structure, easy assembly, small, wide range of application, action reliable, temperature control is more accurate, stable and reliable performance, long service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 For the structure diagram of an embodiment of the utility model.

[0018] Fig. 2 For the structure diagram of an embodiment of the utility model.

[0019] Fig. 3 For the structure diagram of an embodiment of the utility model.

[0020] Fig. 4 For the structure diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further explained below in connection with the drawings and examples.

[0022] As Figs. 1 to 4 As shown, a simple and small automatic reset liquid expansion type temperature controller, including fixed support 1 and coaxial on fixed support 1 temperature regulating rod 2, membrane box 3 and temperature control module 4, the main part of fixed support 1 is " the frame structure of the N type " and forms the inner groove 101, and the both ends of fixed support 1 are equipped with connecting matching part, the opposite side of temperature control module 4 is equipped with the fastening connecting part corresponding with connecting matching part, temperature control module 4 is connected with connecting matching part through fastening connecting part and is connected on fixed support 1, and its pressure end is inserted into inner groove 101, temperature regulating rod 2 is connected on the base 11 of fixed support 1, and its inner end is in abutment with one end of membrane box 3, the other end of membrane box 3 is on the pressure end of temperature control module 4, and membrane box 3 is connected with temperature sensing cylinder 6 through capillary tube 5.

[0023] This liquid expansion type temperature controller simple structure, easy assembly, small, wide range of application, action reliable, temperature control is more accurate, stable and reliable performance, long service life.

[0024] The temperature adjusting rod 2 is provided with an axial through hole 201, one end of the diaphragm box 3 is provided with a guide rod 31, the guide rod 31 is inserted into the axial through hole 201, and the axial through hole 201 is threadedly connected with a temperature adjusting rod 7; the temperature adjusting rod 7 can be adjusted to push on the upper end of the guide rod 31; after the factory, the user can rotate the temperature adjusting rod 2 to adjust the temperature of the temperature sensor; but in the debugging process, the temperature adjusting rod 7 can be screwed in and out to finely adjust the distance between the temperature adjusting rod 2 and the diaphragm box 3, thereby improving the accuracy of the temperature.

[0025] The temperature control module 4 includes a jump main body 41, the jump main body 41 is provided with an opening 401 corresponding to the pressure receiving end, the opening 401 is connected with a steel sheet 42 capable of being deformed by driving, the other end of the diaphragm box 3 is provided with a protrusion 32 abutting or adjacent to the steel sheet 42, and the jump main body 41 is provided with a on-off switch 43 connected in series on the wire circuit, the on-off switch 43 and the steel sheet 42 abut with a movable push rod 44; when the temperature sensing cylinder 6 is heated to cause the diaphragm box 3 to expand, the protrusion 32 of the diaphragm box 3 presses against the steel sheet 42, thereby disconnecting the on-off switch 43.

[0026] The jump main body 41 includes a main body shell 411, the main body shell 411 is provided with a steel sheet supporting block 412 at the top, the center of the steel sheet supporting block 412 is provided with a guide through hole 4121 which is linearly and slidably connected with the movable push rod 44, the steel sheet 42 is placed on the steel sheet supporting block 412 and is fixed by the sealing cover 413, and the opening 401 is formed in the sealing cover 413; the steel sheet 42 is fixed by the steel sheet supporting block 412, which is simple in structure and easy to assemble.

[0027] The on-off switch 43 includes a movable contact 431 and a static contact 432 arranged in the main body shell 411, one end of the movable contact 431 and the static contact 432 is provided with a contact 433 which elastically touches each other, the other end of the movable contact 431 and the static contact 432 is connected with a rivet 434 respectively, the rivet 434 extends out of the bottom of the main body shell 411 and is connected with a connecting sheet 435 respectively; the above structure belongs to the conventional structure of the jump type temperature controller, which will not be described in detail here.

[0028] The fastening connection part includes a connecting lug 414 connected to the sealing cover 413 on the opposite side and a separate fixing bolt 8, and the connecting lug 414 is provided with a through hole 415; the connecting matching part includes a flange 13 bent outward from the side of the fixed support 1, the flange 13 abuts on the connecting lug 414 and is provided with a fastening screw hole 131 corresponding to the through hole 415, the fastening screw hole 131 and the through hole 415 are penetrated by the fixing bolt 8, thereby realizing the assembly connection of the temperature control module 4 and the fixed support 1; the assembly is fixed by the fixing bolt 8, which is firm in connection, simple in installation and high in production efficiency.

[0029] The base 11 of the fixed support 1 is provided with an adjusting screw hole 14, the outer side of the temperature adjusting rod 2 is provided with an outer threaded part 202 matched with the adjusting screw hole 14, and the outer side of the temperature adjusting rod 2 is connected with a limiting swing block 9 rotating with the temperature adjusting rod 2, and the base 11 of the fixed support 1 is extended with a limiting baffle 15 for controlling the forward and reverse reciprocating swing of the limiting swing block 9; the limiting baffle 15 can limit the angle of rotation of the temperature adjusting rod 2, so as to avoid that the temperature adjusting rod 2 is out of contact with the diaphragm capsule 3 or excessively presses the diaphragm capsule 3 and causes damage to the diaphragm capsule 3.

[0030] The two side plates of the fixed support 1 are connected to the end portions of the base 11 and downwardly extended, the two side edges 12 of the base 11 are upwardly folded by continuous bending to have a connecting leg 16, and the connecting leg 16 is provided with a mounting screw hole 17 for assembling the liquid expansion type temperature controller.

[0031] In addition, in the embodiment, the fastening screw hole 131, the adjusting screw hole 14 and the mounting screw hole 17 are all provided with a through hole 102 on the fixed support 1, and an inner threaded ring 10 is welded on one side of the through hole 102, so that the fastening screw hole 131, the adjusting screw hole 14 and the mounting screw hole 17 are formed by the through hole 102 and the inner threaded ring 10.

[0032] The fixed support 1 is integrally made of a metal material, and a bendable soft edge 18 is punched outwardly on one side plate of the fixed support 1, at least one section of the capillary tube 5 is sleeved with a protective sleeve 51, and the protective sleeve 51 is clamped on the fixed support 1 through the bendable soft edge 18; the one end of the capillary tube 5 can be fixed, so as to play a guiding role, and the capillary tube 5 can be protected.

[0033] The outer end of the temperature adjusting rod 2 is provided with a slit 203 along the length direction, and the temperature adjusting rod 7 is at least exposed in the slit 203; the slit 203 can be used to observe whether the temperature adjusting rod 7 is installed in the temperature adjusting rod 2 and the depth of the temperature adjusting rod 7.

[0034] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification only illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the protection scope of the utility model is defined by the appended claims and equivalents.

Claims

1. A simple, small, automatic reset liquid expansion temperature controller, characterized in that: The utility model provides a temperature regulating device, including fixed support and coaxial temperature adjusting rod, membrane box and temperature control module on fixed support, the main part of fixed support is the frame structure of the '' N ” type and forms the inner groove, and both ends of fixed support are equipped with the connecting cooperation part, the opposite side of temperature control module is equipped with the fastening connecting part corresponding with connecting cooperation part, and temperature control module is connected with connecting cooperation part through fastening connecting part and is inserted into the inner groove with the pressure end, temperature adjusting rod is connected on the base of fixed support and the inner end is with the one end of membrane box and pushes together, the other end of membrane box is on the pressure end of temperature control module or adjacent, and membrane box is connected with temperature sensing cylinder through capillary.

2. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 1, characterized in that: The utility model discloses a temperature regulating device, including fixed support and coaxial temperature adjusting rod, membrane box and temperature control module on fixed support, the main part of fixed support is the frame structure of the '' N ” type and forms the inner groove, and both ends of fixed support are equipped with the connecting cooperation part, the opposite side of temperature control module is equipped with the fastening connecting part corresponding with connecting cooperation part, and temperature control module is connected with connecting cooperation part through fastening connecting part and is inserted into the inner groove with the pressure end, temperature adjusting rod is connected on the base of fixed support and the inner end is with the one end of membrane box and pushes together, the other end of membrane box is on the pressure end of temperature control module or adjacent, and membrane box is connected with temperature sensing cylinder through capillary.

3. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 1, characterized in that: The utility model discloses a temperature regulating device, including fixed support and coaxial temperature adjusting rod, membrane box and temperature control module on fixed support, the main part of fixed support is the frame structure of the '' N ” type and forms the inner groove, and both ends of fixed support are equipped with the connecting cooperation part, the opposite side of temperature control module is equipped with the fastening connecting part corresponding with connecting cooperation part, and temperature control module is connected with connecting cooperation part through fastening connecting part and is inserted into the inner groove with the pressure end, temperature adjusting rod is connected on the base of fixed support and the inner end is with the one end of membrane box and pushes together, the other end of membrane box is on the pressure end of temperature control module or adjacent, and membrane box is connected with temperature sensing cylinder through capillary.

4. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 3, characterized in that: The utility model discloses a temperature regulating device, including fixed support and coaxial temperature adjusting rod, membrane box and temperature control module on fixed support, the main part of fixed support is the frame structure of the '' N ” type and forms the inner groove, and both ends of fixed support are equipped with the connecting cooperation part, the opposite side of temperature control module is equipped with the fastening connecting part corresponding with connecting cooperation part, and temperature control module is connected with connecting cooperation part through fastening connecting part and is inserted into the inner groove with the pressure end, temperature adjusting rod is connected on the base of fixed support and the inner end is with the one end of membrane box and pushes together, the other end of membrane box is on the pressure end of temperature control module or adjacent, and membrane box is connected with temperature sensing cylinder through capillary.

5. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 3, characterized in that: ​ 6. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 1, characterized in that: ​ 7. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 1, characterized in that: ​ 8. A simple and compact self-resetting liquid expansion type temperature controller according to claim 1, wherein: ​ 9. A simple and compact self-resetting liquid-expansion type temperature controller according to claim 2, characterized in that: ​

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