CN220085932U

CN220085932U - Adjustable liquid expansion type temperature controller

Info

Publication number: CN220085932U
Application number: CN202321212964.3U
Authority: CN
Inventors: 张路平; 王凯强; 黄龙祥
Original assignee: Changzhou Foland Electrical Appliance Co Ltd
Current assignee: Changzhou Foland Electrical Appliance Co Ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-11-24
Anticipated expiration: 2033-05-19

Abstract

The utility model relates to an adjustable liquid expansion type temperature controller, which comprises a power component, a switch component, a temperature regulating component and a housing component, wherein the power component, the switch component and the temperature regulating component are mutually matched and fixedly arranged in the housing component: the power component comprises a temperature sensing cylinder and a diaphragm capsule, the temperature sensing cylinder and the diaphragm capsule are communicated through a capillary tube, the power component also comprises a push rod, the lower end of the push rod is fixedly arranged at the upper end of the diaphragm capsule, the diaphragm capsule drives the push rod to move up and down, the power component is matched with the switch component through the push rod, and the power component is fixedly arranged on the housing component through the diaphragm capsule; the utility model has reasonable structure, can be convenient for adjusting and setting the on-off temperature and ensures the temperature control precision.

Description

Adjustable liquid expansion type temperature controller

Technical Field

The utility model relates to a temperature controller, in particular to an adjustable liquid expansion type temperature controller.

Background

The liquid expansion temperature controller (Liquid expansion thermostat, also called pressure temperature control switch, capillary temperature protector, temperature controller) is a physical phenomenon (volume change) that causes the material (generally liquid) in the temperature sensing part of the temperature controller to expand and contract when the temperature of the controlled object changes, and the bellows communicated with the temperature sensing bag expands or contracts. The lever principle is used for driving the switch to be switched on and off so as to achieve the aim of temperature adjustment.

The liquid expanding temperature controller is mainly applied to a large-scale electric appliance and a temperature controller of an electric oven, and is mainly characterized in that: the temperature controller has the characteristics of long service life, stability, reliability, small start-stop temperature difference, large overload current, convenient installation and the like, and compared with the common bimetallic strip, the temperature controller with the bimetallic strip has the highest temperature of only 250 ℃ and the liquid expansion temperature controller has the highest temperature of 450 ℃.

However, the alarm and disconnection temperatures of different electric appliances are different, the traditional liquid expansion type temperature controller cannot well adjust the set on-off temperature according to the required temperature of the electric appliances, so that the temperature adjusting effect is poor, further, the traditional liquid expansion type temperature controller cannot reliably guarantee the accuracy of the on-off temperature due to long-time use and overhigh internal temperature of the electric appliances, the temperature adjusting effect is poor, and certain potential safety hazards exist.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide an adjustable liquid expansion type temperature controller, which comprises a power component, a switch component, a temperature regulating component and a housing component, wherein the power component, the switch component and the temperature regulating component are mutually matched and fixedly arranged in the housing component:

the power component comprises a temperature sensing cylinder and a diaphragm capsule, the temperature sensing cylinder and the diaphragm capsule are communicated through a capillary tube, the power component also comprises a push rod, the lower end of the push rod is fixedly arranged at the upper end of the diaphragm capsule, the diaphragm capsule drives the push rod to move up and down, the power component is matched with the switch component through the push rod, and the power component is fixedly arranged on the housing component through the diaphragm capsule;

the switch component comprises a reed, a static contact piece, porcelain rings, a first terminal and a second terminal, wherein the reed is in butt fit with the push rod, the switch component further comprises a fixing screw, the switch component is fixedly arranged on the housing component through the fixing screw, the number of the porcelain rings is three, the three porcelain rings are arranged on the fixing screw through porcelain sleeves in a vertically stacking and sleeving manner, the static contact piece is vertically stacked with the second terminal and is arranged on the fixing screw through the porcelain sleeves in a sleeving manner, the static contact piece is fixedly clamped between the upper and lower adjacent two porcelain rings, the reed mounting plate is vertically stacked with the first terminal and is arranged on the fixing screw through the porcelain sleeves in a sleeving manner, the reed mounting plate is fixedly clamped between the upper and lower adjacent two porcelain rings, the reed is arranged on the fixing screw through the reed mounting plate, the reed is positioned above the static contact piece, and the ends of the reed and the static contact piece are all provided with contacts;

the temperature adjusting component comprises an adjusting shaft, a limiting piece and a travel screw, wherein the travel screw is arranged in an inner cavity of the adjusting shaft, the lower end portion of the travel screw is exposed from the inner cavity of the adjusting shaft, the limiting piece is fixedly sleeved on the periphery of the adjusting shaft, the temperature adjusting component is rotatably arranged on the housing component through the adjusting shaft, the lower end portion of the travel screw is in butt fit with the mounting plate, and the temperature adjusting component is matched with the switch component through the travel screw.

The housing member comprises a fixed plate, a housing and a positioning plate, the fixed plate, the housing and the positioning plate form a cavity for accommodating the power member, the switch member and the temperature regulating member, the power member is fixedly arranged on the positioning plate through a bellows, the switch member is respectively fixedly arranged on the fixed plate and the positioning plate through fixing screws, and the temperature regulating member is rotatably arranged on the fixed plate through an adjusting shaft.

Preferably, the reed and the reed mounting plate are connected through a transition block, the upper end face of the transition block is connected with the end part of the mounting plate, and the lower end face of the transition block is connected with the end part of the reed, namely, a matching space is formed between the reed and the reed mounting plate through the transition block.

Preferably, the plate body of the fixed plate is provided with a threaded section, the adjusting shaft is connected to the fixed plate in a threaded manner, and the end face of the plate body of the fixed plate is provided with a stop matched with the limiting piece.

Preferably, the end part of the travel screw is provided with a constant temperature push rod, the lower end of the travel screw is exposed from the inner cavity of the adjusting shaft through the constant temperature push rod, the end part of the constant temperature push rod is provided with a steel ball assembly bin for accommodating steel balls, and the steel balls are abutted on the reed mounting plate.

Preferably, the main body end part of the reed mounting plate is provided with a turnover section I extending upwards, the main body end part of the transition block is provided with a turnover section II extending downwards, the upper end surface of the main body of the transition block is fixedly connected with the turnover section I, and the end part of the reed is fixedly connected with the lower end surface of the turnover section II.

Preferably, the upper end face of the block body main body of the transition block is provided with two positioning columns I which are oppositely arranged, the lower end face of the turnover section II is provided with two positioning columns II which are oppositely arranged, the two positioning columns I penetrate through the reed mounting plate and are exposed, the two positioning columns II penetrate through the reed and are exposed, and the steel balls can be respectively in butt contact with the two positioning columns I.

Preferably, the cross section of locating plate is L shape, including locating surface and installation face, the locating plate passes through the front end of locating surface laminating at the housing, and the installation face supports and leans on the lower extreme of housing, and the upper end of locating surface is equipped with two at least cutting, and the board body of fixed plate is opened has the locating hole with cutting matched with, and the board body both sides of fixed plate have respectively with housing looks laminating location wing limit.

Preferably, the mounting surface is respectively provided with a diaphragm capsule mounting hole and a fixing screw mounting hole I, a through hole is formed between the diaphragm capsule mounting hole and the fixing screw mounting hole I, the mounting surface is provided with a line gathering part at the through hole, the lower end of the housing is provided with a spacing plate matched with the through hole, the spacing plate is in abutting contact with the mounting surface, and the plate surface of the spacing plate and the plate surface are provided with ribs which enter the through hole and are matched with the line gathering part.

Preferably, the connecting part of the positioning plate, which is positioned between the positioning surface and the mounting surface, is provided with a positioning bending section, an assembly interval is arranged between the positioning bending section and the mounting surface, and the end part of the housing is provided with a positioning inserting column inserted into the assembly interval.

Preferably, the lower end of the housing is provided with a first positioning contour section extending downwards at the partition plate, the positioning plate is provided with a second positioning contour section at two sides of the mounting surface, and the first positioning contour section is matched with the second positioning contour section in shape and size;

the rear end of the housing is also provided with a tail shell, the rear end of the housing is provided with a first plug-in pair, the front end of the tail shell is provided with a second plug-in pair, the tail shell is fixedly spliced at the rear end of the housing in a plug-in manner through the matching of the first plug-in pair and the second plug-in pair, and the housing body of the housing is provided with a notch for exposing the first terminal and the second terminal.

By means of the scheme, the utility model has at least the following advantages:

according to the technical scheme, the integral temperature controller is realized through the power component, the switch component, the temperature regulating component and the housing component, and the switch component can be driven to perform on-off action according to the temperature received by the power component, so that the temperature regulating purpose is achieved;

further, through the temperature regulating component, the position of the reed of the switch component can be regulated, so that the trigger temperature of the switch component for on-off action can be changed, the switch component can be used by adapting to various electric appliances without changing the original structure, and meanwhile, the switch component can be regulated according to actual conditions, so that the temperature control regulation can be better realized, and the safe operation of equipment is ensured.

Furthermore, the cover shell component is formed by the fixing plate, the cover shell and the positioning plate, and the combination of the cover shell component, the cover shell and the positioning plate can better fix the power component and the switch component while guaranteeing the stability of the cover shell, can still guarantee accurate and reliable on-off actions under long-time use and high-temperature states, and can also guarantee accurate and reliable on-off actions after the electric appliance is in stressed states such as carrying, impact and the like.

In conclusion, the temperature adjusting device and the temperature adjusting method can reliably achieve the purpose of temperature adjustment, and meanwhile accuracy and reliability of temperature adjustment can be guaranteed through the structure of the device.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate a certain embodiment of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an adjustable expansion thermostat of the present utility model;

FIG. 2 is a schematic diagram of an adjustable expansion thermostat according to the present utility model;

FIG. 3 is a schematic diagram of an adjustable expansion thermostat of the present utility model, with the cover 18 and positioning plate 19 removed;

FIG. 4 is a schematic diagram of an adjustable expansion thermostat of the present utility model with the housing 18 removed;

FIG. 5 is a schematic diagram of the structural relationship among the power member, the switch member and the temperature regulating member of an adjustable expansion thermostat of the present utility model;

FIG. 6 is a schematic diagram showing the structural relationship among the travel screw 16, the steel ball 23 and the reed mounting plate 12 of an adjustable expansion thermostat of the present utility model;

FIG. 7 is a schematic view of a transition block 20 of an adjustable expansion thermostat of the present utility model;

FIG. 8 is a schematic view of the structure of a positioning plate 19 of an adjustable expansion thermostat;

FIG. 9 is a schematic diagram showing the structural relationship between the housing 18 and the positioning plate 19 of an adjustable expansion thermostat;

FIG. 10 is a schematic view of the structure of the casing 18 of the adjustable expansion thermostat;

FIG. 11 is a schematic diagram showing the structural relationship between the housing 18 and the tail housing 45 of an adjustable expansion thermostat;

fig. 12 is a schematic structural view of an adjustable expansion thermostat tail housing 45.

In the figure: the temperature sensing tube 1, the diaphragm capsule 2, the capillary tube 3, the push rod 4, the reed 5, the static contact 6, the porcelain ring 7, the first terminal 8, the second terminal 9, the fixing screw 10, the porcelain sleeve 11, the reed mounting plate 12, the contact 13, the adjusting shaft 14, the limiting piece 15, the travel screw 16, the fixing plate 17, the housing 18, the positioning plate 19, the transition block 20, the stop 21, the constant temperature push rod 22, the steel ball 23, the steel ball assembly bin 24, the first folding section 25, the second folding section 26, the first positioning column 27, the second positioning column 28, the positioning surface 29, the mounting surface 30, the cutting 31, the positioning hole 32, the positioning wing edge 33, the diaphragm capsule mounting hole 34, the first fixing screw mounting hole 35, the through hole 36, the closing line 37, the spacing plate 38, the rib 39, the positioning bending section 40, the assembly interval 41, the positioning inserting column 42, the positioning contour section one 43, the positioning contour section two 44, the tail shell 45, the first inserting pair 46, the second inserting pair 47 and the notch 48.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 12, an adjustable expansion thermostat according to a preferred embodiment of the present utility model includes a power member, a switch member, a temperature adjusting member and a housing member, wherein the power member, the switch member and the temperature adjusting member are mutually matched and fixedly arranged in the housing member:

the power component comprises a temperature sensing cylinder 1 and a diaphragm capsule 2, wherein the temperature sensing cylinder 1 and the diaphragm capsule 2 are communicated through a capillary tube 3, the power component also comprises a push rod 4, the lower end of the push rod 4 is fixedly arranged at the upper end of the diaphragm capsule 2, the diaphragm capsule 2 drives the push rod 4 to move up and down, the power component is matched with the switch component through the push rod 4, and the power component is fixedly arranged on the housing component through the diaphragm capsule 2;

the switch component comprises a reed 5, a static contact piece 6, porcelain rings 7, a first terminal 8 and a second terminal 9, wherein the reed 5 is in butt fit with the push rod 4, the switch component further comprises a fixing screw 10, the switch component is fixedly arranged on the housing component through the fixing screw 10, the number of the porcelain rings 7 is three, the three porcelain rings 7 are vertically stacked and sleeved on the fixing screw 10 through a porcelain sleeve 11, the static contact piece 6 and the second terminal 9 are vertically stacked and sleeved on the fixing screw 10 through the porcelain sleeve 11, the static contact piece 6 and the second terminal 9 are clamped and fixed between the upper adjacent porcelain ring 7 and the lower adjacent porcelain ring 7, a reed mounting plate 12 is also arranged, the reed mounting plate 12 and the first terminal 8 are vertically stacked and sleeved on the fixing screw 10 through the porcelain sleeve 11, the reed 5 is arranged on the fixing screw 10 through the reed mounting plate 12 and is positioned above the static contact piece 6, and the reed 5 and the end part of the static contact piece 6 are respectively provided with a reed mounting plate 12;

the temperature adjusting member comprises an adjusting shaft 14, a limiting piece 15 and a travel screw 16, wherein the travel screw 16 is arranged in an inner cavity of the adjusting shaft 14, the lower end portion of the travel screw 16 is exposed out of the inner cavity of the adjusting shaft 14, the limiting piece 15 is fixedly sleeved on the periphery of the adjusting shaft 14, the temperature adjusting member is rotatably arranged on a housing member through the adjusting shaft 14, the lower end portion of the travel screw 16 is in butt fit with the mounting plate 12, and the temperature adjusting member is matched with a switch member through the travel screw 16.

The housing member includes a fixing plate 17, a housing 18, and a positioning plate 19, the fixing plate 17, the housing 18, and the positioning plate 19 constitute a cavity that accommodates a power member, a switching member, and a temperature adjusting member, the power member is fixedly disposed on the positioning plate 19 through the bellows 2, the switching member is fixedly disposed on the fixing plate 17 and the positioning plate 19 through the fixing screw 10, respectively, and the temperature adjusting member is rotatably disposed on the fixing plate 17 through the adjusting shaft 14.

Preferably, the reed 5 is connected with the reed mounting plate 12 through a transition block 20, the upper end surface of the transition block 20 is connected with the end of the mounting plate 12, and the lower end surface of the transition block 20 is connected with the end of the reed 5, namely, a matching space is formed between the reed 5 and the reed mounting plate 12 through the transition block 20. The reed 5 finally realizes self location purpose on set screw 10 through reed mounting panel 12 setting, has transition piece 20 between reed 5 and the reed mounting panel 12 simultaneously, and the interval distance between reed 5 and the reed mounting panel 12 can be increased to transition piece 20, utilizes this interval distance to realize the break-make action, and further, utilizes this structure of transition piece 20, can also play the purpose of simplifying inner structure, and reed 5 only has its tail end to be connected with transition piece 20, when being convenient for the installation more, also can guarantee reed 5 direct and push rod 4 contact, has improved the control by temperature change precision.

Preferably, the plate body of the fixing plate 17 is provided with a threaded section, the adjusting shaft 14 is connected to the fixing plate 17 in a threaded manner, and the end surface of the plate body of the fixing plate 17 is provided with a stop 21 matched with the limiting piece 15.

Preferably, the end of the travel screw 16 is provided with a constant temperature push rod 22, the lower end of the travel screw 16 is exposed from the inner cavity of the adjusting shaft 14 through the constant temperature push rod 22, the end of the constant temperature push rod 22 is provided with a steel ball assembly bin 24 for accommodating a steel ball 23, and the steel ball 23 is abutted on the reed mounting plate 12. Compared with the prior art, the technical scheme of the utility model realizes the purpose of driving and adjusting the position of the reed mounting plate 12 through the steel column 23, and then indirectly adjusting the height of the reed 5, thereby realizing the purpose of adjusting the trigger on-off action temperature.

Preferably, the main body end of the reed mounting plate 12 is provided with a turnover section one 25 extending upwards, the main body end of the transition block 20 is provided with a turnover section two 26 extending downwards, the upper end face of the main body of the transition block 20 is fixedly connected with the turnover section one 25, and the end of the reed 5 is fixedly connected with the lower end face of the turnover section two 26. The reed 5 and the reed mounting plate 12 are fixedly connected through the transition block 20, further, the reed 5 and the reed mounting plate 12 are fixedly connected through the end part and the transition block 20, the structure can achieve the mounting purpose, meanwhile, the stress movement of the reed 5 and the reed mounting plate 12 is not influenced, the smoothness and the precision of the on-off action are ensured, the first folding section 25 and the second folding section 26 can provide a movable space between the reed 5 and the reed mounting plate 12, after the preset temperature is reached, the reed 5 is stressed and is jacked, and the contact 13 at the end part of the reed can be contacted with the reed mounting plate 12.

Preferably, the upper end face of the block body main body of the transition block 20 is provided with two positioning columns 27 which are oppositely arranged, the lower end face of the turnover section II 26 is provided with two positioning columns 28 which are oppositely arranged, the two positioning columns 27 penetrate through the reed mounting plate 12 and are exposed, the two positioning columns 28 penetrate through the reed 5 and are exposed, and the steel balls 23 can be respectively in abutting contact with the two positioning columns 27. The temperature controller with the traditional structure directly adopts the thimble to drive the reed structure, the technical scheme of the utility model is that the travel screw 16 is abutted on the reed mounting plate 12 through the constant temperature push rod 22 and the steel balls 23, and then the reed 5 is indirectly driven, so that the position adjustment of the reed mounting plate 12 and the reed 5 is realized, because the steel balls 23 can rotate in the steel ball assembly bin 24 and can be respectively abutted with the two positioning columns 27, compared with the prior art, the structure can enable the travel screw 16 to better drive the reed mounting plate 12 and the reed 5, and meanwhile, because the steel balls 23 can be self-positioned, the aim of accurate temperature adjustment can be reliably realized under the severe working condition of high temperature or under the physical interference of impact, transportation and the like;

further, compared with a traditional thimble structure, the steel ball 23 is more wear-resistant in use, the durability of the whole temperature controller can be improved, and meanwhile, the steel ball 23 is more wear-resistant, so that the temperature controller can still realize accurate temperature control action through the steel ball 23 after long-time use.

Preferably, the section of the positioning plate 19 is L-shaped and comprises a positioning surface 29 and a mounting surface 30, the positioning plate 19 is attached to the front end of the housing 18 through the positioning surface 29, the mounting surface 30 is abutted against the lower end of the housing 18, at least two cutting bars 31 are arranged at the upper end of the positioning surface 29, a positioning hole 32 matched with the cutting bars 31 is formed in the plate body of the fixing plate 17, and positioning wing edges 33 attached to the housing 18 are respectively arranged on two sides of the plate body of the fixing plate 17. According to the technical scheme, the fixing plate 17, the housing 18 and the positioning plate 19 are combined into the integral frame structure, and then the installation and the fixation of the power component, the switch component and the temperature regulating component are realized, wherein the positioning plate 19 can play an important fastening role, the fixing plate 17 and the housing 18 are positioned through the positioning plate 19, so that an impact-resistant integral structure is formed, and the positioning plate 19 can also be fixedly provided with the power component and the switch component, so that the temperature regulating precision can be ensured, and the problem that the precision of the power component, the switch component and the temperature regulating component is reduced due to the influence of external force and high temperature is avoided;

the impact resistance of the temperature controller can be greatly improved through the positioning plate 19, the power component, the switch component and the temperature regulating component can be protected from being damaged in the transportation and use process while the deformation of the whole structure is avoided, and the stability and the accuracy of the temperature controller are ensured.

Preferably, the mounting surface 30 is respectively provided with a capsule mounting hole 34 and a fixing screw mounting hole 35, a through hole 36 is arranged between the capsule mounting hole 34 and the fixing screw mounting hole 35, the mounting surface 30 is provided with a line gathering 37 at the position of the through hole 36, the lower end of the housing 18 is provided with a spacing plate 38 matched with the through hole, the spacing plate 38 is in abutting contact with the mounting surface 30, and the plate surface of the spacing plate 38 and the plate surface are provided with ribs 39 which enter the through hole 36 and are matched with the line gathering 37. After the diaphragm capsule 2 is fixedly arranged on the mounting surface 30, the connection part of the capillary tube 3 and the diaphragm capsule 2 can be fixed on the lower end surface of the mounting surface 30 through the line gathering 37 and the rib 39, and the diaphragm capsule 2 can be prevented from being damaged when the whole temperature controller is arranged through the mounting surface 30, so that the subsequent temperature control purpose is influenced.

Preferably, the positioning plate 19 is provided with a positioning bending section 40 at the connection between the positioning surface 29 and the mounting surface 30, an assembly space 41 is formed between the positioning bending section 40 and the mounting surface 30, and the end of the housing 18 is provided with a positioning plug 42 inserted into the assembly space 41.

Preferably, the lower end of the housing 18 is provided with a first positioning contour section 43 extending downwards at the partition plate 38, the positioning plate 19 is provided with a second positioning contour section 44 at two sides of the mounting surface 30, and the first positioning contour section 43 is matched with the second positioning contour section 44 in shape and size;

the rear end of the housing 18 is also provided with a tail shell 45, the rear end of the housing 18 is provided with a first plug-in pair 46, the front end of the tail shell 45 is provided with a second plug-in pair 47, the tail shell 45 is fixedly plugged at the rear end of the housing 18 through the matching of the first plug-in pair 46 and the second plug-in pair 47, and a notch 48 for exposing the first terminal 8 and the second terminal 9 is formed in the housing body of the housing 18. The tail shell 45 is fixedly arranged at the rear end of the housing 18 and forms a whole with the housing 18, so that the cavity formed by the fixing plate 17, the housing 18 and the positioning plate 19 for accommodating the power component, the switch component and the temperature regulating component is a relatively complete closed cavity, and the protection effect can be better realized.

The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, other structures can refer to the common design, and the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. The utility model provides an adjustable liquid expanding temperature controller, includes power component, switch component, temperature regulating member and housing component, and power component, switch component, temperature regulating member mutually support and install in the housing component, its characterized in that:

the power component comprises a temperature sensing barrel (1) and a diaphragm capsule (2), the temperature sensing barrel (1) and the diaphragm capsule (2) are communicated through a capillary tube (3), the power component also comprises a push rod (4), the lower end of the push rod (4) is fixedly arranged at the upper end of the diaphragm capsule (2), the diaphragm capsule (2) drives the push rod (4) to move up and down, the power component is matched with the switch component through the push rod (4), and the power component is fixedly arranged on the housing component through the diaphragm capsule (2);

the switch component comprises a reed (5), a fixed contact piece (6), porcelain rings (7), a first terminal (8) and a second terminal (9), wherein the reed (5) is in butt fit with a push rod (4), the switch component further comprises a fixing screw (10), the switch component is fixedly arranged on a housing component through the fixing screw (10), the number of the porcelain rings (7) is three, the three porcelain rings (7) are vertically stacked and sleeved on the fixing screw (10) through porcelain sleeves (11), the fixed contact piece (6) and the second terminal (9) are vertically stacked and are sleeved on the fixing screw (10) through the porcelain sleeves (11), the fixed contact piece (6) and the second terminal (9) are clamped and fixed between the upper adjacent and the lower adjacent two porcelain rings (7), and the reed mounting plate (12) is vertically stacked and is sleeved on the fixing screw (10) through the porcelain sleeves (11), the mounting plate (12) and the first terminal (8) are clamped and fixed between the upper adjacent and lower adjacent two porcelain rings (7), and the fixed contact piece (5) is arranged on the reed (5) through the fixing plate (10) and is positioned on the reed (5) and is provided with a reed (13) and the reed (5);

the temperature regulating component comprises an adjusting shaft (14), a limiting piece (15) and a travel screw (16), the travel screw (16) is arranged in an inner cavity of the adjusting shaft (14), the lower end part of the travel screw (16) is exposed out of the inner cavity of the adjusting shaft (14), the limiting piece (15) is fixedly sleeved on the periphery of the adjusting shaft (14), the temperature regulating component is rotatably arranged on the housing component through the adjusting shaft (14), the lower end part of the travel screw (16) is in abutting fit with the mounting plate (12), and the temperature regulating component is matched with the switch component through the travel screw (16);

the housing member comprises a fixing plate (17), a housing (18) and a positioning plate (19), wherein the fixing plate (17), the housing (18) and the positioning plate (19) form a cavity for accommodating the power member, the switch member and the temperature regulating member, the power member is fixedly arranged on the positioning plate (19) through the diaphragm capsule (2), the switch member is respectively fixedly arranged on the fixing plate (17) and the positioning plate (19) through the fixing screw (10), and the temperature regulating member is rotatably arranged on the fixing plate (17) through the adjusting shaft (14).

2. An adjustable expansion thermostat according to claim 1, characterized in that: the reed (5) is connected with the reed mounting plate (12) through the transition block (20), the upper end face of the transition block (20) is connected with the end part of the mounting plate (12), the lower end face of the transition block (20) is connected with the end part of the reed (5), namely, a matching space is formed between the reed (5) and the reed mounting plate (12) through the transition block (20).

3. An adjustable expansion thermostat according to claim 1, characterized in that: the plate body of the fixed plate (17) is provided with a thread section, the adjusting shaft (14) is connected to the fixed plate (17) in a threaded mode, and the end face of the plate body of the fixed plate (17) is provided with a stop (21) matched with the limiting piece (15).

4. An adjustable expansion thermostat according to claim 1, characterized in that: the end of the travel screw (16) is provided with a constant temperature push rod (22), the lower end of the travel screw (16) is exposed from the inner cavity of the adjusting shaft (14) through the constant temperature push rod (22), the end of the constant temperature push rod (22) is provided with a steel ball assembly bin (24) for accommodating steel balls (23), and the steel balls (23) are abutted on the reed mounting plate (12).

5. An adjustable liquid expansion thermostat according to claim 2, characterized in that: the main body end part of the reed mounting plate (12) is provided with a turnover section I (25) extending upwards, the main body end part of the transition block (20) is provided with a turnover section II (26) extending downwards, the upper end surface of the main body of the transition block (20) is fixedly connected with the turnover section I (25), and the end part of the reed (5) is fixedly connected with the lower end surface of the turnover section II (26).

6. The adjustable liquid expansion thermostat of claim 5, wherein: the upper end face of the block body main body of the transition block (20) is provided with two positioning columns I (27) which are oppositely arranged, the lower end face of the turnover section II (26) is provided with two positioning columns II (28) which are oppositely arranged, the two positioning columns I (27) penetrate through the reed mounting plate (12) and are exposed, the two positioning columns II (28) penetrate through the reed (5) and are exposed, and the steel balls (23) can be respectively in abutting contact with the two positioning columns I (27).

7. An adjustable expansion thermostat according to claim 1, characterized in that: the section of locating plate (19) is L shape, including locating surface (29) and installation face (30), and locating plate (19) laminating is at the front end of housing (18) through locating surface (29), and installation face (30) support and lean on the lower extreme of housing (18), and the upper end of locating surface (29) is equipped with two at least cutting (31), and the plate body of fixed plate (17) is opened has locating hole (32) with cutting (31) matched with, and the plate body both sides of fixed plate (17) have respectively with housing (18) the locating wing limit (33) that laminate mutually.

8. The adjustable liquid expansion thermostat of claim 7, wherein: the mounting surface (30) is provided with a diaphragm capsule mounting hole (34) and a fixing screw mounting hole I (35) respectively, the mounting surface (30) is provided with a through hole (36) between the diaphragm capsule mounting hole (34) and the fixing screw mounting hole I (35), the mounting surface (30) is provided with a line gathering (37) at the position of the through hole (36), the lower end of the housing (18) is provided with a spacing plate (38) matched with the through hole (36), the spacing plate (38) is in abutting contact with the mounting surface (30), and the surface of the spacing plate (38) is provided with a rib (39) which enters the through hole (36) and is matched with the line gathering (37).

9. An adjustable expansion thermostat according to claim 7 or 8, characterized in that: the locating plate (19) is provided with a locating bending section (40) at the joint of the locating surface (29) and the mounting surface (30), an assembly interval (41) is arranged between the locating bending section (40) and the mounting surface (30), and the end part of the housing (18) is provided with a locating inserting column (42) inserted into the assembly interval (41).

10. An adjustable expansion thermostat according to claim 7 or 8, characterized in that:

the lower end of the housing (18) is provided with a first positioning contour section (43) extending downwards at the partition plate (38), the positioning plate (19) is provided with a second positioning contour section (44) at two sides of the mounting surface (30), and the first positioning contour section (43) is matched with the second positioning contour section (44) in shape and size;

the rear end of the housing (18) is also provided with a tail shell (45), the rear end of the housing (18) is provided with a first plug-in pair (46), the front end of the tail shell (45) is provided with a second plug-in pair (47), the tail shell (45) is fixedly plugged at the rear end of the housing (18) through the matching of the first plug-in pair (46) and the second plug-in pair (47), and a notch (48) for exposing the first terminal (8) and the second terminal (9) is formed in the housing body of the housing (18).