CN113375821B

CN113375821B - Intelligent temperature transmitter with protection function

Info

Publication number: CN113375821B
Application number: CN202110922079.3A
Authority: CN
Inventors: 黎春丽
Original assignee: Ruifeng Automation Technology Haimen Co ltd
Current assignee: Ruifeng Automation Technology Haimen Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-10-08
Anticipated expiration: 2041-08-12
Also published as: CN113375821A

Abstract

The invention discloses an intelligent temperature transmitter with a protection function, belonging to the field of temperature transmitters, and the intelligent temperature transmitter with the protection function comprises a transmitter body and a thermocouple, wherein the outer side of the transmitter body is sleeved with a protective shell and a shell cover, the outer side of the thermocouple is sleeved with a protective sleeve, a quick lock mechanism is arranged between the protective shell and the shell cover, the top end of the protective sleeve is provided with a container connecting piece, the top of the container connecting piece is fixedly provided with a switching tube, the protective sleeve is detachably connected with the bottom end of the switching tube through a thread structure, the top end of the thermocouple is fixedly provided with a slide block, the thermocouple is sleeved on the inner wall of the switching tube through the slide block in a sliding way, the inner wall of the switching tube is provided with a conductive slide rail, and the slide block is provided with a conductive contact matched with the conductive slide rail. Has market prospect and is suitable for popularization.

Description

Intelligent temperature transmitter with protection function

Technical Field

The invention relates to the field of temperature transmitters, in particular to an intelligent temperature transmitter with a protection function.

Background

A transducer is a transducer that converts the output signal of a sensor into a signal that can be recognized by a controller (or a signal source that converts the non-electrical quantity input by the sensor into an electrical signal while amplifying it for remote measurement and control). The sensor and the transmitter together form an automatically controlled monitoring signal source. Different physical quantities require different sensors and corresponding transmitters. The transmitters are various in types, and the transmitters used on the industrial control instrument mainly comprise a temperature transmitter, a pressure transmitter, a flow transmitter, a current transmitter, a voltage transmitter and the like, wherein the temperature transmitter adopts a thermocouple and a thermal resistor as temperature measuring elements, signals output by the temperature measuring elements are transmitted to a transmitter module, and the signals are converted into 4-20 mA current signals which are in linear relation with the temperature after being processed by circuits such as voltage stabilizing filtering, operational amplification, nonlinear correction, V/I conversion, constant current protection, reverse protection and the like.

The temperature transmitter adopts a thermocouple and a thermal resistor as temperature measuring elements, and the output signals of the temperature measuring elements are transmitted to a transmitter module, and the thermal resistor film is highly accurate and vibration resistant. They are provided with thin film resistors consisting of an extremely thin metal layer, usually platinum, but also copper or nickel, deposited on a ceramic substrate. A layer of glass seals the metal film and the wire connections together. In this type of industrial transmitter, the sensitive element is not based on a thin, elongated and fragile wire. Their compact size, minimal mass and moving parts are not very effective against vibration, and some temperature sensing elements can detect temperatures of up to 300 degrees and can be damaged if exceeded, so there is a need for an over-temperature protection mechanism for which we propose an intelligent temperature transmitter with protection to solve the above problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an intelligent temperature transmitter with a protection function, which can be matched with a switching pipe with an elastic hook and a protection spring through a sheath with a telescopic air bag, a storage bin and a first plugging ring, when the temperature environment of a thermocouple reaches an over-temperature state, gas in the telescopic air bag is heated and expanded to lift up a trigger ring, so that a conical surface of the trigger ring is abutted against a slope opening of the elastic hook to press the elastic hook to retract, the elastic hook is separated from a hook groove at the moment, elastic potential energy stored by the protection spring is released, the thermocouple rapidly rebounds under the elastic action of the protection spring, a detection end of the thermocouple is separated from the high-temperature environment, meanwhile, the rising of the thermocouple drives the first plugging ring to be separated from a second plugging ring, and overheat protection particles stored in the storage bin fall down, the protection shell, the transmitter body and the adapter tube can achieve low thermal conductivity, and meanwhile, the flexible connection can be realized by the damping air bag to achieve the damping protection effect.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An intelligent temperature transmitter with a protection function comprises a transmitter body and a thermocouple, wherein a protective shell and a shell cover are sleeved on the outer side of the transmitter body, a protective sleeve is sleeved on the outer side of the thermocouple, a quick locking mechanism is arranged between the protective shell and the shell cover, a container connecting piece is arranged at the top end of the protective sleeve, a switching tube is fixed at the top of the container connecting piece, the protective sleeve is detachably connected to the bottom end of the switching tube through a threaded structure, a sliding block is fixed at the top end of the thermocouple, the thermocouple is sleeved on the inner wall of the switching tube in a sliding manner through the sliding block, a conductive sliding rail is arranged on the inner wall of the switching tube, a conductive contact matched with the conductive sliding rail is arranged on the sliding block, a protection spring is clamped between the sliding block and the inner wall of the switching tube, two elastic hooks which are symmetrically arranged are inherent at the bottom of the switching tube, and hook grooves matched with the elastic hooks are arranged on the outer wall of the thermocouple, the top inner wall of sheath is fixed with flexible gasbag, flexible gasbag's top is fixed with triggers the ring, the top that triggers the ring is conical surface structure, the elastic hook bottom is equipped with and triggers the corresponding slope mouth of ring, the sheath bottom is equipped with the storage storehouse, the storage storehouse intussuseption is filled with the overheat protection granule, the inner wall bottom in storage storehouse is equipped with first shutoff ring, be equipped with first shutoff ring assorted second shutoff ring on the thermocouple, be equipped with the shock attenuation gasbag in the protective housing, the shock attenuation gasbag is the gasbag structure of section I shape, shock attenuation gasbag top, middle part and bottom splice respectively and are fixed with first thermal insulation gasket, second thermal insulation gasket and third thermal insulation gasket, cap and the clamp joint of changer body have damping spring. According to the scheme, through the mutual matching between the sheath with the telescopic air bag, the storage bin and the first blocking ring and the adapting pipe with the elastic hook and the protection spring, when the temperature environment of the thermocouple reaches an over-temperature state, gas in the telescopic air bag is heated to expand and the trigger ring is lifted up, so that the conical surface of the trigger ring is abutted to the slope opening of the elastic hook to press the elastic hook to retract, the elastic hook is separated from the hook groove, the elastic potential energy stored by the protection spring is released, the thermocouple rapidly rebounds under the elastic action of the protection spring, the detection end of the thermocouple is separated from a high-temperature environment, meanwhile, the rising of the thermocouple drives the first blocking ring to be separated from the second blocking ring, the overheating protection particles stored in the storage bin fall down to further coat the detection end of the thermocouple, the detection end is subjected to temperature insulation protection, and meanwhile, the first temperature insulation gasket is combined to form, The damping air bags of the second and third temperature-insulating gaskets enable the protective shell, the transmitter body and the adapter tube to achieve low thermal conductivity, and meanwhile flexible connection can be achieved through the damping air bags, so that the damping protection effect is achieved.

Further, the overheating protection particles are a mixture of silica aerogel particles, polyphenyl particles and foaming polyurethane particles according to the proportion of 3: 2, and the particle size of the overheating protection particles is 15-35 mu m.

Furthermore, the signal transmission end of thermocouple passes through wire and conductive contact electric connection, electrically conductive slide rail passes through the signal input part electric connection of wire and changer body, the middle part of shock attenuation gasbag is equipped with the through-hole that the wire of being convenient for passes through, the cap top is fixed with display screen, the control unit and wireless transmission module, the switching intraductal pressure sensor who is used for detecting atmospheric pressure that is equipped with, changer body, pressure sensor, wireless transmission module, display screen all pass through wire and the control unit electric connection. The structure design of the pressure sensor, the wireless transmission module and the control unit is combined, so that the pressure sensor detects the elastic force change of the protection spring in the process of over-temperature retraction of the thermocouple, when the pressure sensor detects that the protection spring retracts, the pressure sensor transmits a signal to the control unit, the control unit sends remote warning information to a manager through the wireless transmission module, the warning information stops temperature measurement information return of the thermocouple on the one hand, on the other hand, the manager is prompted to carry out safety check on the on-site over-temperature condition, and the use safety and the intelligent management level are effectively improved.

Furthermore, the telescopic air bag is of a cylindrical corrugated air bag structure, carbon dioxide gas is filled in the telescopic air bag and the damping air bag, and the filling pressure of the carbon dioxide gas in the telescopic air bag is in direct proportion to the maximum temperature resistance value of the thermocouple. Through the shock attenuation gasbag, the carbon dioxide gas is filled in flexible gasbag, utilize carbon dioxide gas to be heated the high and stable thermal-insulated characteristic of expansion rate, effective isolated temperature's transmission has effectively protected electronic component on the one hand, and on the other hand, through filling the carbon dioxide gas of certain pressure to flexible gasbag, can realize under the appointed temperature, flexible gasbag inflation rises to the conical surface that triggers the ring and the inconsistent state of slope mouth of elastic hook, need not extra drive mechanism, simple structure, low in manufacturing cost.

Furthermore, first heat insulating gasket, second heat insulating gasket, third heat insulating gasket are ceramic gasket structure, first heat insulating gasket and changer body bottom fixed connection, the second heat insulating gasket and protective housing inner wall fixed connection, the third heat insulating gasket and switching pipe top fixed connection. Through the structural design of the first thermal insulation gasket, the second thermal insulation gasket and the third thermal insulation gasket of the ceramic gasket structure, the transmission of temperature among the protective shell, the transmitter body and the switching pipe is effectively isolated, meanwhile, the protective shell, the transmitter body and the switching pipe are connected in a flexible anti-seismic mode through the damping air bags, the vibration in the working environment is effectively prevented from being transmitted to the transmitter body, and the anti-seismic performance is improved.

Further, fast latch mechanism cup joints the locking clamping ring at the protective housing outer wall including sliding, it has the tensioning spring to lock the clamping ring and has connect between the protective housing outer wall, protective housing outer wall equiangular distance branch is equipped with a plurality of ball grooves, the ball inslot is equipped with the steel ball, the bilateral symmetry of ball groove is equipped with the spout rather than the intercommunication, the spout is the arc wall structure, be equipped with in the spout rather than assorted arc lock post, the clamp connection is equipped with reset spring between arc lock post and spout, the bottom equiangular distance of cap is equipped with a plurality of grafting pieces, the both sides of grafting piece be equipped with steel ball assorted locked groove, the protective housing top be equipped with grafting piece assorted spliced groove, spliced groove and spout intercommunication set up. Through having the steel ball, the ball groove, the arc lock post, reset spring, the spout, the protective housing of inserting groove, have the inserted block, the cap of locked groove, and have the groove that resets, the lock of tensioning spring sticiss the inter-annular mutually supporting, when using, overcome the elasticity of tensioning spring through external force and push down the locking clamping ring, to closing with the ball groove that resets, two arc lock posts extrude the steel ball into the groove that resets under reset spring's effect this moment, insert the inserted block of cap into the inserting groove this moment, remove the external force of locking clamping ring, under the inner wall pressure of locking clamping ring, steel ball return to ball groove, oppress two arc lock posts and keep away from mutually and to closing with the locked groove, accomplish the quick locking of cap, traditional screw thread or bolted connection relatively, have the effect of quick installation and dismantlement, be convenient for the installation and maintenance, the preferred convenience of using that has promoted.

Furthermore, a sealing gasket is clamped between the protective shell and the shell cover, and a plurality of heat insulation cavities are arranged in the sealing gasket.

Further, tensioning spring has the elasticity of ordering about locking clamping ring and being close to the cap, the top inner wall of locking clamping ring be equipped with steel ball assorted groove that resets, the groove that resets is the semicircular annular structure in section.

Furthermore, one end of the arc-shaped lock cylinder, which is opposite to the steel ball, is provided with a smooth spherical structure, and the reset spring has elastic force for driving the two arc-shaped lock cylinders to be close to each other.

Furthermore, the protection spring is a high-strength anti-fatigue spring, and the protection spring has elasticity for driving the thermocouple to be close to the adapter tube. Through the structural design of the protection spring of the high-strength anti-fatigue spring, after the thermocouple is subjected to over-temperature protection, a manager can detach the sheath from the container connecting piece, and stretch the thermocouple by using external force to overcome the elastic force of the pulling protection spring, so that the elastic hook is hung in the hook groove again, and the sheath is installed in an inverted mode, so that overheating protection particles fall back into the storage bin 51, the reset operation of the thermocouple 8 is completed, and the maintenance convenience is effectively improved.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the scheme, through the mutual matching between the sheath with the telescopic air bag, the storage bin and the first blocking ring and the adapting pipe with the elastic hook and the protection spring, when the temperature environment of the thermocouple reaches an over-temperature state, gas in the telescopic air bag is heated to expand and the trigger ring is lifted up, so that the conical surface of the trigger ring is abutted to the slope opening of the elastic hook to press the elastic hook to retract, the elastic hook is separated from the hook groove, the elastic potential energy stored by the protection spring is released, the thermocouple rapidly rebounds under the elastic action of the protection spring, the detection end of the thermocouple is separated from a high-temperature environment, meanwhile, the rising of the thermocouple drives the first blocking ring to be separated from the second blocking ring, the overheating protection particles stored in the storage bin fall down to further coat the detection end of the thermocouple, the detection end is subjected to temperature insulation protection, and meanwhile, the first temperature insulation gasket is combined to form, The damping air bags of the second and third temperature-insulating gaskets enable the protective shell, the transmitter body and the adapter tube to achieve low thermal conductivity, and meanwhile flexible connection can be achieved through the damping air bags, so that the damping protection effect is achieved.

(2) The structure design of the pressure sensor, the wireless transmission module and the control unit is combined, so that the pressure sensor detects the elastic force change of the protection spring in the process of over-temperature retraction of the thermocouple, when the pressure sensor detects that the protection spring retracts, the pressure sensor transmits a signal to the control unit, the control unit sends remote warning information to a manager through the wireless transmission module, the warning information stops temperature measurement information return of the thermocouple on the one hand, on the other hand, the manager is prompted to carry out safety check on the on-site over-temperature condition, and the use safety and the intelligent management level are effectively improved.

(3) Through the shock attenuation gasbag, the carbon dioxide gas is filled in flexible gasbag, utilize carbon dioxide gas to be heated the high and stable thermal-insulated characteristic of expansion rate, effective isolated temperature's transmission has effectively protected electronic component on the one hand, and on the other hand, through filling the carbon dioxide gas of certain pressure to flexible gasbag, can realize under the appointed temperature, flexible gasbag inflation rises to the conical surface that triggers the ring and the inconsistent state of slope mouth of elastic hook, need not extra drive mechanism, simple structure, low in manufacturing cost.

(4) Through the structural design of the first thermal insulation gasket, the second thermal insulation gasket and the third thermal insulation gasket of the ceramic gasket structure, the transmission of temperature among the protective shell, the transmitter body and the switching pipe is effectively isolated, meanwhile, the protective shell, the transmitter body and the switching pipe are connected in a flexible anti-seismic mode through the damping air bags, the vibration in the working environment is effectively prevented from being transmitted to the transmitter body, and the anti-seismic performance is improved.

(5) Through having the steel ball, the ball groove, the arc lock post, reset spring, the spout, the protective housing of inserting groove, have the inserted block, the cap of locked groove, and have the groove that resets, the lock of tensioning spring sticiss the inter-annular mutually supporting, when using, overcome the elasticity of tensioning spring through external force and push down the locking clamping ring, to closing with the ball groove that resets, two arc lock posts extrude the steel ball into the groove that resets under reset spring's effect this moment, insert the inserted block of cap into the inserting groove this moment, remove the external force of locking clamping ring, under the inner wall pressure of locking clamping ring, steel ball return to ball groove, oppress two arc lock posts and keep away from mutually and to closing with the locked groove, accomplish the quick locking of cap, traditional screw thread or bolted connection relatively, have the effect of quick installation and dismantlement, be convenient for the installation and maintenance, the preferred convenience of using that has promoted.

(6) Through the structural design of the protection spring of the high-strength anti-fatigue spring, after the thermocouple is subjected to over-temperature protection, a manager can detach the sheath from the container connecting piece, and stretch the thermocouple by using external force to overcome the elastic force of the pulling protection spring, so that the elastic hook is hung in the hook groove again, and the sheath is installed in an inverted mode, so that overheating protection particles fall back into the storage bin 51, the reset operation of the thermocouple 8 is completed, and the maintenance convenience is effectively improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic bottom view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of the portion B in FIG. 3;

FIG. 6 is an enlarged view of the portion C of FIG. 3;

FIG. 7 is a schematic cross-sectional view of a quick lock mechanism of the present invention;

fig. 8 is a schematic view of the explosion structure of the quick lock mechanism proposed in the present invention;

FIG. 9 is an exploded view of the shock absorbing bladder and its components set forth in the present invention;

fig. 10 is a schematic diagram of an exploded structure of the sheath and its internal components proposed in the present invention.

The reference numbers in the figures illustrate:

the device comprises a protective shell 1, a locking press ring 11, a reset groove 111, a tensioning spring 12, a steel ball 13, a ball groove 131, an arc-shaped lock column 14, a reset spring 141, a sliding groove 142, an insertion groove 15, a shell cover 2, a display screen 21, a control unit 22, a wireless transmission module 23, a damping spring 24, a sealing gasket 25, an insertion block 26, a lock groove 261, a container connecting piece 3, a switching tube 4, a protection spring 41, a conductive sliding rail 42, a pressure sensor 43, an elastic hook 44, a sheath 5, a storage bin 51, a telescopic air bag 52, a trigger ring 53, a first plugging ring 54, a transmitter body 6, a damping air bag 7, a first thermal insulation gasket 71, a second thermal insulation gasket 72, a third thermal insulation gasket 73, a thermocouple 8, a hook groove 81, a second plugging ring 82, a sliding block 83 and a conductive contact 831.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-6, an intelligent temperature transmitter with protection function comprises a transmitter body 6 and a thermocouple 8, wherein a protective shell 1 and a housing cover 2 are sleeved outside the transmitter body 6, a sheath 5 is sleeved outside the thermocouple 8, a quick locking mechanism is arranged between the protective shell 1 and the housing cover 2, a container connecting piece 3 is arranged at the top end of the sheath 5, a transition tube 4 is fixed at the top of the container connecting piece 3, the sheath 5 is detachably connected to the bottom end of the transition tube 4 through a threaded structure, a sliding block 83 is fixed at the top end of the thermocouple 8, the thermocouple 8 is slidably sleeved on the inner wall of the transition tube 4 through the sliding block 83, a conductive sliding rail 42 is arranged on the inner wall of the transition tube 4, a conductive contact 831 matched with the conductive sliding rail 42 is arranged on the sliding block 83, a protection spring 41 is clamped between the sliding block 83 and the inner wall of the transition tube 4, two elastic hooks 44 symmetrically arranged are fixed at the bottom of the transition tube 4, the outer wall of thermocouple 8 is equipped with the couple groove 81 with elastic hook 44 assorted, the top inner wall of sheath 5 is fixed with, the top of flexible gasbag 52 is fixed with triggers ring 53, the top of triggering ring 53 is the conical surface structure, elastic hook 44 bottom is equipped with the oblique groove corresponding with triggering ring 53, sheath 5 bottom is equipped with storage storehouse 51, the storage storehouse 51 is filled with overheat protection granule, overheat protection granule is the mixture of silica aerogel granule, polyphenyl granule, foaming polyurethane granule according to the proportion 3: 2, the particle diameter of overheat protection granule is 15-35 mu m, the inner wall bottom of storage storehouse 51 is equipped with first shutoff ring 54, be equipped with second shutoff ring 82 of first shutoff ring 54 assorted on thermocouple 8, be equipped with shock attenuation gasbag 7 in the protective housing 1, shock attenuation gasbag 7 is the gasbag structure of section I-shaped, shock attenuation gasbag 7 top, middle part and bottom splice respectively and are fixed with first heat insulating gasket 71, Second thermal insulating pad 72 and third thermal insulating pad 73, damping spring 24 is clamped between cover 2 and transmitter body 6. According to the invention, through the mutual matching between the sheath 5 with the telescopic air bag 52, the storage bin 51 and the first plugging ring 54 and the adapter tube 4 with the elastic hook 44 and the protection spring 41, when the temperature environment of the thermocouple 8 reaches an over-temperature state, the gas in the telescopic air bag 52 is heated to expand and lift the trigger ring 53, so that the conical surface of the trigger ring 53 is abutted against the slope opening of the elastic hook 44 to press the elastic hook 44 to retract, at the moment, the elastic hook 44 is separated from the hook groove 81, the elastic potential energy stored in the protection spring 41 is released, the thermocouple 8 rapidly rebounds under the elastic action of the protection spring 41, the detection end head of the thermocouple 8 is separated from the high-temperature environment, meanwhile, the rising of the thermocouple 8 drives the first plugging ring 54 to be separated from the second plugging ring 82, the overheat protection particles stored in the storage bin 51 fall down to further coat the detection end of the thermocouple 8, the detection end is subjected to heat insulation protection, and the damping air bag 7 with the first heat insulation gasket 71, the second heat insulation gasket 72 and the third heat insulation gasket 73 is combined, so that the low heat conductivity among the protective shell 1, the transmitter body 6 and the adapter tube 4 is achieved, meanwhile, the flexible connection can be realized by the damping air bag 7, and the effect of damping protection is achieved.

Referring to fig. 3, a signal transmission end of the thermocouple 8 is electrically connected to the conductive contact 831 through a wire, the conductive slide rail 42 is electrically connected to a signal input end of the transmitter body 6 through a wire, a through hole for allowing a wire to pass through is formed in the middle of the damping airbag 7, the display screen 21, the control unit 22 and the wireless transmission module 23 are fixed to the top of the housing cover 2, the pressure sensor 43 for detecting air pressure is arranged in the adapter tube 4, and the transmitter body 6, the pressure sensor 43, the wireless transmission module 23 and the display screen 21 are electrically connected to the control unit 22 through wires. By combining the structural design of the pressure sensor 43, the wireless transmission module 23 and the control unit 22, the pressure sensor 43 detects the elastic force change of the protection spring 41 in the process of over-temperature retraction of the thermocouple 8, when the pressure sensor 43 detects that the protection spring 41 is retracted, the pressure sensor 43 transmits a signal to the control unit 22, the control unit 22 sends remote warning information to a manager through the wireless transmission module 23, the warning information stops temperature measurement information return of the thermocouple 8 on one hand, and prompts the manager to perform safety check on the on-site over-temperature condition on the other hand, so that the use safety and the intelligent management level are effectively improved.

Referring to fig. 5 and 10, the telescopic airbag 52 has a cylindrical corrugated airbag structure, carbon dioxide gas is filled in both the telescopic airbag 52 and the shock-absorbing airbag 7, and the filling pressure of the carbon dioxide gas in the telescopic airbag 52 is proportional to the maximum temperature resistance of the thermocouple 8. Through shock attenuation gasbag 7, fill carbon dioxide gas in flexible gasbag 52, utilize carbon dioxide gas to be heated the high and stable thermal-insulated characteristic of expansion rate, effective isolated temperature's transmission on the one hand, electronic component has effectively been protected, on the other hand, through the carbon dioxide gas to flexible gasbag 52 packing certain pressure, can realize under the appointed temperature, flexible gasbag 52 inflation rises to the state that triggers the conical surface of ring 53 and elastic hook 44's slope mouth inconsistent, need not extra drive mechanism, moreover, the steam generator is simple in structure, low in manufacturing cost.

Referring to fig. 3 and 9, the first thermal insulation gasket 71, the second thermal insulation gasket 72, and the third thermal insulation gasket 73 are all ceramic gasket structures, the first thermal insulation gasket 71 is fixedly connected to the bottom of the transmitter body 6, the second thermal insulation gasket 72 is fixedly connected to the inner wall of the protective shell 1, and the third thermal insulation gasket 73 is fixedly connected to the top of the adapter tube 4. Through the structural design of the first thermal insulation gasket 71, the second thermal insulation gasket 72 and the third thermal insulation gasket 73 of the ceramic gasket structure, the transmission of temperature among the protective shell 1, the transmitter body 6 and the adapter tube 4 is effectively isolated, meanwhile, the protective shell 1, the transmitter body 6 and the adapter tube 4 are connected in a flexible anti-seismic mode through the damping air bag 7, the vibration in the working environment is effectively prevented from being transmitted to the transmitter body 6, and the anti-seismic performance is improved.

Referring to fig. 4, 7 and 8, the quick locking mechanism includes a locking ring 11 slidably sleeved on the outer wall of the protective casing 1, a tension spring 12 is clamped between the locking ring 11 and the outer wall of the protective casing 1, a plurality of ball grooves 131 are arranged on the outer wall of the protective casing 1 at equal angular intervals, steel balls 13 are arranged in the ball grooves 131, sliding grooves 142 communicated with the ball grooves 131 are symmetrically arranged on both sides of the ball grooves 131, the sliding grooves 142 are arc groove structures, arc locking columns 14 matched with the sliding grooves 142 are arranged in the sliding grooves 142, return springs 141 are clamped between the arc locking columns 14 and the sliding grooves 142, a plurality of inserting blocks 26 are arranged at equal angles on the bottom of the casing cover 2, locking grooves 261 matched with the steel balls 13 are arranged on both sides of the inserting blocks 26, an inserting groove 15 matched with the inserting block 26 is arranged on the top of the protective casing 1, the inserting groove 15 is communicated with the sliding grooves 142, a sealing gasket 25 is clamped between the protective casing 1 and the casing cover 2, a plurality of temperature-isolating cavities are arranged in the sealing gasket 25, the tensioning spring 12 has an elastic force for driving the locking compression ring 11 to be close to the shell cover 2, the inner wall of the top of the locking compression ring 11 is provided with a reset groove 111 matched with the steel ball 13, the reset groove 111 is of an annular groove structure with a semicircular section, one end, opposite to the steel ball 13, of the arc-shaped locking column 14 is provided with a smooth spherical surface structure, and the reset spring 141 has an elastic force for driving the two arc-shaped locking columns 14 to be close to each other. Through the mutual matching among the protective shell 1 with the steel ball 13, the ball groove 131, the arc-shaped locking columns 14, the reset spring 141, the sliding groove 142, the inserting groove 15, the shell cover 2 with the inserting block 26 and the locking groove 261, and the locking press ring 11 with the reset groove 111 and the tension spring 12, when in use, the locking press ring 11 is pressed down by overcoming the elasticity of the tension spring 12 through external force, the reset groove 111 is matched with the ball groove 131, at the moment, the two arc-shaped locking columns 14 press the steel ball 13 into the reset groove 111 under the action of the reset spring 141, at the moment, the inserting block 26 of the shell cover 2 is inserted into the inserting groove 15, the external force of the locking press ring 11 is removed, under the pressure of the inner wall of the locking press ring 11, the steel ball 13 returns to the ball groove 131, the two arc-shaped locking columns 14 are pressed to be far away from each other and matched with the locking groove 261, the quick locking of the shell cover 2 is completed, compared with the traditional screw thread or bolt connection, the effect of quick installation and disassembly is achieved, the installation and maintenance are convenient, and the use convenience is preferably improved.

Referring to fig. 10, the protection spring 41 is a high-strength fatigue-resistant spring, and the protection spring 41 has an elastic force for driving the thermocouple 8 to approach the adapter tube 4. Through the structural design of the protection spring 41 of the high-strength fatigue-resistant spring, after the thermocouple 8 completes over-temperature protection, a manager can detach the sheath 5 from the container connecting piece 3, overcome the elasticity of the pull protection spring 41 by using external force to stretch the thermocouple 8, enable the elastic hook 44 to be hung in the hook groove 81 again, install the sheath 5 upside down at the moment, enable overheating protection particles to fall back into the storage bin 51, complete the reset operation of the thermocouple 8, and effectively improve the maintenance convenience.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an intelligence temperature transmitter with protect function, includes changer body (6) and thermocouple (8), protective housing (1) and cap (2) have been cup jointed in changer body (6) outside, sheath (5), its characterized in that have been cup jointed in thermocouple (8) outside: a quick-locking mechanism is arranged between the protective shell (1) and the shell cover (2), a container connecting piece (3) is arranged at the top end of the protective shell (5), a transfer pipe (4) is fixed at the top of the container connecting piece (3), the protective shell (5) is detachably connected to the bottom end of the transfer pipe (4) through a threaded structure, a sliding block (83) is fixed at the top end of the thermocouple (8), the thermocouple (8) is slidably sleeved on the inner wall of the transfer pipe (4) through the sliding block (83), a conductive sliding rail (42) is arranged on the inner wall of the transfer pipe (4), a conductive contact (831) matched with the conductive sliding rail (42) is arranged on the sliding block (83), a protective spring (41) is clamped between the sliding block (83) and the inner wall of the transfer pipe (4), two elastic hooks (44) which are symmetrically arranged are inherent at the bottom of the transfer pipe (4), and a hook groove (81) matched with the elastic hooks (44) is arranged on the outer wall of the thermocouple (8), the top inner wall of sheath (5) is fixed with flexible gasbag (52), the top of flexible gasbag (52) is fixed with triggers ring (53), the top that triggers ring (53) is the conical surface structure, elastic hook (44) bottom is equipped with and triggers ring (53) corresponding oblique groove, sheath (5) bottom is equipped with storage storehouse (51), storage storehouse (51) intussuseption is filled with the overheat protection granule, the inner wall bottom in storage storehouse (51) is equipped with first shutoff ring (54), be equipped with first shutoff ring (54) assorted second shutoff ring (82) on thermocouple (8), be equipped with shock attenuation gasbag (7) in protective housing (1), shock attenuation gasbag (7) are the gasbag structure of section I shape, the splice respectively is fixed with first temperature-isolating gasket (71) at a distance from top, middle part and bottom shock attenuation gasbag (7), A second thermal insulation gasket (72) and a third thermal insulation gasket (73), and a damping spring (24) is clamped between the shell cover (2) and the transmitter body (6).

2. The intelligent temperature transmitter with protection function of claim 1, characterized in that: the overheating protection particles are a mixture of silica aerogel particles, polyphenyl particles and foaming polyurethane particles according to the proportion of 3: 2, and the particle size of the overheating protection particles is 15-35 mu m.

3. The intelligent temperature transmitter with protection function of claim 1, characterized in that: the signal transmission end of thermocouple (8) passes through wire and electrically conductive contact (831) electric connection, electrically conductive slide rail (42) pass through the signal input part electric connection of wire and changer body (6), the middle part of shock attenuation gasbag (7) is equipped with the through-hole that the wire of being convenient for passes through, cap (2) top is fixed with display screen (21), the control unit (22) and wireless transmission module (23), be equipped with pressure sensor (43) that are used for detecting atmospheric pressure in switching pipe (4), changer body (6), pressure sensor (43), wireless transmission module (23), display screen (21) all pass through wire and the control unit (22) electric connection.

4. The intelligent temperature transmitter with protection function of claim 1, characterized in that: the telescopic air bag (52) is of a cylindrical corrugated air bag structure, carbon dioxide gas is filled in the telescopic air bag (52) and the shock absorption air bag (7), and the filling pressure of the carbon dioxide gas in the telescopic air bag (52) is in direct proportion to the maximum temperature resistance value of the thermocouple (8).

5. The intelligent temperature transmitter with protection function of claim 1, characterized in that: first heat insulating gasket (71), second heat insulating gasket (72), third heat insulating gasket (73) are ceramic pad structure, first heat insulating gasket (71) and transmitter body (6) bottom fixed connection, second heat insulating gasket (72) and protective housing (1) inner wall fixed connection, third heat insulating gasket (73) and switching pipe (4) top fixed connection.

6. The intelligent temperature transmitter with protection function of claim 1, characterized in that: the quick locking mechanism comprises a locking compression ring (11) which is sleeved on the outer wall of a protective shell (1) in a sliding mode, a tensioning spring (12) is clamped between the locking compression ring (11) and the outer wall of the protective shell (1), a plurality of ball grooves (131) are arranged on the outer wall of the protective shell (1) at equal angular intervals, steel balls (13) are arranged in the ball grooves (131), sliding grooves (142) communicated with the ball grooves (131) are symmetrically arranged on two sides of each ball groove (131), each sliding groove (142) is of an arc groove structure, arc locking columns (14) matched with the sliding grooves (142) are arranged in the sliding grooves (142), a reset spring (141) is clamped between each arc locking column (14) and the corresponding sliding groove (142), a plurality of inserting blocks (26) are uniformly arranged at equal angular intervals at the bottom of the shell cover (2), locking grooves (261) matched with the steel balls (13) are arranged on two sides of the inserting blocks (26), an inserting groove (15) matched with the inserting blocks (26) is arranged on the top of the protective shell (1), the insertion groove (15) is communicated with the sliding groove (142).

7. The intelligent temperature transmitter with protection function of claim 6, characterized in that: a sealing gasket (25) is clamped between the protective shell (1) and the shell cover (2), and a plurality of heat insulation cavities are arranged in the sealing gasket (25).

8. The intelligent temperature transmitter with protection function of claim 6, characterized in that: tensioning spring (12) have the elasticity of ordering about locking clamping ring (11) and being close to cap (2), the top inner wall of locking clamping ring (11) is equipped with and resets groove (111) with steel ball (13) assorted, it is the semicircular annular structure in section to reset groove (111).

9. The intelligent temperature transmitter with protection function of claim 6, characterized in that: one end of the arc-shaped lock cylinder (14) opposite to the steel ball (13) is provided with a smooth spherical structure, and the return spring (141) has elastic force for driving the two arc-shaped lock cylinders (14) to be close to each other.

10. The intelligent temperature transmitter with protection function of claim 1, characterized in that: the protection spring (41) is a high-strength anti-fatigue spring, and the protection spring (41) has elastic force for driving the thermocouple (8) to be close to the adapter tube (4).