Protective device for high-temperature thermocouple

Abstract

The utility model relates to the technical field of thermocouples, in particular to a protective device for a high-temperature thermocouple, which comprises a thermocouple main body, an insulating tube is arranged on the bottom surface of the thermocouple main body, and a connecting port is mounted on the side wall of the thermocouple main body; a protection structure is mounted on the outer side of the thermocouple main body, the protection structure comprises a protection shell, the protection shell is movably mounted on the outer side of the thermocouple main body, a sealing gasket is adhered to the bottom surface of the protection shell, a positioning bolt is in threaded connection with the surface of the protection shell, and a protection pipe is in threaded connection with the interior of the bottom surface of the protection shell; a positioning groove is formed in the inner side of the protective shell, and a lower fixing groove is formed in the top face of the protective shell. According to the utility model, through the arrangement of the truncated cone-shaped protective shell and the flip cover, the thermocouple main body can be shielded and protected, the thermocouple main body can be prevented from displacement due to external force and bending of the insulating tube can be avoided, the protective effect on the thermocouple main body is improved, and the use experience of the device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a thermocouple technical field, specifically for a kind of protective device for high-temperature thermocouple. BACKGROUND

[0002] Thermocouple is the temperature measuring instrument commonly used temperature measuring element, it directly measures temperature, and temperature signal is converted into thermoelectric electromotive force signal, is converted into the temperature of measured medium by electrical instrument.

[0003] For this, China application patent number: CN202421026825.6, discloses a kind of fast temperature measuring thermocouple, including thermocouple body, the bottom of the thermocouple body is fixedly connected with insulating tube;It further includes protective tube, the protective tube is sleeved on the outer surface of insulating tube, the top of the protective tube is integrally formed with screw boss;It further includes the protective top cover for protecting the top of thermocouple body, the bottom of the protective top cover is provided with the screw mounting hole for cooperation with screw boss;The utility model is protected by setting protective tube and protective top cover, simple structure, it is convenient and practical, can be well protected to thermocouple body, avoid thermocouple body long-term exposure in high temperature, high humidity environment, also avoid thermocouple body directly contact with corrosive object, delay the aging of thermocouple body, reduce the influence of environment to thermocouple body simultaneously, to prolong the service life of thermocouple body, reduce use cost.

[0004] The device is protected by setting protective top cover to thermocouple body, but protective top cover is installed on the outside of thermocouple body, and protective top cover is not connected between flange, so that thermocouple body and flange are only supported by protective tube, poor stability, after thermocouple body is collided by external force, protective tube and insulating tube will be bent and deformed, cause the damage of device.

[0005] Therefore, in order to solve the above problems, a kind of protective device for high-temperature thermocouple is provided. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of protective device for high-temperature thermocouple, to solve the problem that the device in prior art mentioned in the above background art is protected by setting protective top cover to thermocouple body, but protective top cover is installed on the outside of thermocouple body, and protective top cover is not connected between flange, so that thermocouple body and flange are only supported by protective tube, poor stability, after thermocouple body is collided by external force, protective tube and insulating tube will be bent and deformed, cause the damage of device.

[0007] To achieve the above object, the utility model provides the following technical scheme: A kind of protective device for high-temperature thermocouple, comprising: thermocouple main body, the bottom surface of the thermocouple main body is provided with insulating tube, connecting port is installed on the side wall of the thermocouple main body;

[0008] The outer side of the thermocouple main body is provided with a protective structure, the protective structure includes a protective shell, the protective shell is movably installed on the outer side of the thermocouple main body, a sealing gasket is bonded to the bottom surface of the protective shell, a positioning bolt is threadedly connected to the surface of the protective shell, a protective tube is threadedly connected inside the bottom surface of the protective shell, a positioning groove is formed in the inner side of the protective shell, a lower fixing groove is provided on the top surface of the protective shell, a lid is movably connected to the top surface of the protective shell by a hinge, an upper fixing groove is provided on the bottom surface of the lid, and a fastening bolt is threadedly connected to the surface of the lid.

[0009] Preferably, the bottom end of the thermocouple main body is clamped inside the positioning groove, the insulating tube is inserted inside the protective tube, and the connecting port is clamped inside the lower and upper fixing grooves.

[0010] Preferably, the top surface of the protective shell is attached to the bottom surface of the lid, and the protective shell and the lid form a circular truncated cone shape.

[0011] Preferably, the lower and upper fixing grooves are located on the side of the protective shell and the lid away from the hinge, and the lower and upper fixing grooves are adapted to each other.

[0012] Preferably, the bottom end of the fastening bolt is threadedly connected to the top surface of the protective shell.

[0013] Compared with the prior art, the utility model has the beneficial effects that: by setting the protective shell and the lid in a circular truncated cone shape, the thermocouple main body can be shielded and protected, displacement of the thermocouple main body due to external force can be avoided, the insulating tube can be prevented from being bent, the protective effect of the thermocouple main body is improved, and the use experience of the device is ensured.

[0014] The utility model discloses a protective structure is provided with, installs, first with the protective pipe is spun in the bottom surface inside of protective shell, then holds protective shell, and the protective pipe is inserted in the mounting hole of equipment surface, then rotates the positioning bolt, can with the protective shell fixed on the outer wall of equipment, and the sealing washer can be padded between protective shell and equipment outer wall, can guarantee the sealing property of the surface that sticks, then pulls apart the flap, and the flap rotates on the upper side of protective shell through the hinge, can expose the top surface inside of protective shell, holds the thermocouple main part, and the insulating tube is inserted in the protective pipe downward, and the bottom end of thermocouple main part will be inserted in the inside of positioning groove, and the connecting port can be clamped in the inboard of lower fixed groove, at this moment, loosen the flap, and the flap can be covered in the upper end of protective shell under the elastic action of hinge, and the upper fixed groove can be covered in the upper side of connecting port, and the fastening bolt is screwed tightly, and the flap and protective shell fixed connection can be fixed to the connecting port with lower fixed groove cooperation upper fixed groove, so that the installation stability of thermocouple main part inside protective structure, because protective shell and flap are circular truncated cone, and the side wall is inclined, when using, protective shell cooperation flap can guide the object of impact to move to the side, reduce the impact force received, and the protective structure fixed on the outer wall of equipment outside thermocouple main part, the protective structure can keep fixed when being impacted, and then can guarantee that thermocouple main part and insulating tube are intact, improve the use experience of device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is structural front view schematic drawing of the utility model;

[0016] Figure 2 It is structural explosion schematic drawing of the utility model;

[0017] Figure 3 It is structural overhead schematic drawing of the utility model positioning groove;

[0018] Figure 4 It is structural front view cross section schematic drawing of the utility model powder.

[0019] In the drawing: 1, thermocouple main part;11, insulating tube;12, connecting port;2, protective structure;21, protective shell;22, sealing washer;23, positioning bolt;24, protective pipe;25, positioning groove;26, lower fixed groove;27, hinge;28, flap;29, upper fixed groove;210, fastening bolt. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a protective device for high temperature thermocouple embodiment:

[0022] The thermocouple body 1, the insulating tube 11 and the connecting port 12 used in the application are products that can be directly purchased in the market, and their principles and connection modes are prior art known to those skilled in the art, so they will not be described here.

[0023] A protective device for high temperature thermocouple, comprising: a thermocouple body 1, the bottom surface of the thermocouple body 1 is provided with an insulating tube 11, and a connecting port 12 is installed on the side wall of the thermocouple body 1.

[0024] The outer side of the thermocouple body 1 is provided with a protective structure 2, the protective structure 2 comprises a protective shell 21, the protective shell 21 is movably installed on the outer side of the thermocouple body 1, the bottom surface of the protective shell 21 is bonded with a sealing gasket 22, the surface of the protective shell 21 is threadedly connected with a positioning bolt 23, the inside of the bottom surface of the protective shell 21 is threadedly connected with a protective tube 24, the inner side of the protective shell 21 is provided with a positioning groove 25, the top surface of the protective shell 21 is provided with a lower fixed groove 26, the bottom surface of the flip cover 28 is provided with an upper fixed groove 29, and the surface of the flip cover 28 is threadedly connected with a fastening bolt 210. By setting the circular truncated cone-shaped protective shell 21 and flip cover 28, the thermocouple body 1 can be shielded and protected, displacement of the thermocouple body 1 due to external force can be avoided, the insulating tube 11 can be prevented from being bent, the protection effect of the thermocouple body 1 is improved, and the use experience of the device is ensured.

[0025] Further, the bottom end of the thermocouple body 1 is clamped on the inner side of the positioning groove 25, the insulating tube 11 is inserted into the inner side of the protective tube 24, and the connecting port 12 is clamped on the inner side of the lower fixed groove 26 and the upper fixed groove 29. The positioning groove 25 provides limiting for the installation of the thermocouple body 1, and the inner wall of the positioning groove 25 is provided with a rubber pad, so as to ensure the sealing between the thermocouple body 1 and the positioning groove 25.

[0026] Further, the top surface of the protective shell 21 is attached to the bottom surface of the flip cover 28, the protective shell 21 and the flip cover 28 form a circular truncated cone shape, and the protective shell 21 cooperates with the flip cover 28 to guide the impacted object to move to the side, thereby reducing the impact force.

[0027] Further, the lower fixed groove 26 and the upper fixed groove 29 are located on the side of the protective shell 21 and the flip cover 28 away from the hinge 27, the lower fixed groove 26 and the upper fixed groove 29 are matched, and the lower fixed groove 26 cooperates with the upper fixed groove 29 to position the connecting port 12, so that the installation of the thermocouple body 1 inside the protective structure 2 is stable.

[0028] Further, the bottom end of the fastening bolt 210 is screwed with the top surface of the protective shell 21, the fastening bolt 210 is used for the fixed connection between the cover 28 and the protective shell 21, and the installation of the thermocouple body 1 is limited.

[0029] Working principle: during installation, first, the protective pipe 24 is screwed in the bottom surface of the protective shell 21, then the protective shell 21 is held, the protective pipe 24 is inserted into the installation hole on the surface of the equipment, then the positioning bolt 23 is rotated, the protective shell 21 can be fixed on the outer wall of the equipment, the sealing gasket 22 can be placed between the protective shell 21 and the outer wall of the equipment, the sealing property of the attached surface can be ensured, then the cover 28 is pulled open, the cover 28 is rotated on the upper side of the protective shell 21 through the hinge 27, the top surface of the protective shell 21 is exposed, the thermocouple body 1 is held, the insulating pipe 11 is inserted into the protective pipe 24 downward, the bottom end of the thermocouple body 1 is inserted into the positioning groove 25, and the connecting port 12 can be clamped on the inner side of the lower fixed groove 26, at this time, the cover 28 can be covered on the upper end of the protective shell 21 under the elastic action of the hinge 27, and the upper fixed groove 29 can be covered on the upper side of the connecting port 12, the fastening bolt 210 is tightened, the cover 28 and the protective shell 21 are fixedly connected, the lower fixed groove 26 cooperates with the upper fixed groove 29 to fix the connecting port 12, so that the installation of the thermocouple body 1 in the protective structure 2 is stable;

[0030] Since the protective shell 21 and the cover 28 are circular truncated cone-shaped, the side wall is inclined, during use, the protective shell 21 cooperates with the cover 28 to guide the impacted object to move to the side, the impact force is reduced, the protective structure 2 installed on the outer side of the thermocouple body 1 is fixed on the outer wall of the equipment, the protective structure 2 can remain fixed when impacted, and then the thermocouple body 1 and the insulating pipe 11 are guaranteed to be intact, and the use experience of the device is improved.

[0031] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings and the above description; however, any equivalent changes, modifications and evolution made by the skilled person in the art without departing from the technical scheme of the present application, using the above disclosed technical content, are equivalent embodiments of the present application; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A protective device for a high temperature thermocouple, comprising: The bottom surface of the thermocouple body (1) is provided with an insulating tube (11), and a connecting port (12) is installed on the side wall of the thermocouple body (1); It is characterized in that: The outer side of the thermocouple body (1) is provided with a protection structure (2), the protection structure (2) comprises a protection shell (21), the protection shell (21) is movably installed on the outer side of the thermocouple body (1), the bottom surface of the protection shell (21) is bonded with a sealing gasket (22), the surface of the protection shell (21) is threadedly connected with a positioning bolt (23), the inside of the bottom surface of the protection shell (21) is threadedly connected with a protection tube (24), the inner side of the protection shell (21) is provided with a positioning groove (25), the top surface of the protection shell (21) is provided with a lower fixed groove (26), the top surface of the protection shell (21) is movably connected with a flip cover (28) through a hinge (27), the bottom surface of the flip cover (28) is provided with an upper fixed groove (29), and the surface of the flip cover (28) is threadedly connected with a fastening bolt (210).

2. A protective device for high temperature thermocouples as defined in claim 1, characterized in that: The bottom end of the thermocouple body (1) is clamped on the inner side of the positioning groove (25), the insulating tube (11) is inserted into the inner side of the protection tube (24), and the connecting port (12) is clamped on the inner side of the lower fixed groove (26) and the upper fixed groove (29).

3. A protective device for high temperature thermocouples as defined in claim 1, characterized in that: The top surface of the protection shell (21) is attached to the bottom surface of the flip cover (28), and the protection shell (21) and the flip cover (28) form a circular truncated cone.

4. A protective device for high temperature thermocouples as defined in claim 1, characterized in that: The lower fixed groove (26) and the upper fixed groove (29) are located on the side of the protection shell (21) and the flip cover (28) away from the hinge (27), and the lower fixed groove (26) and the upper fixed groove (29) are matched.

5. A protective device for high temperature thermocouples as defined in claim 1, wherein: The bottom end of the fastening bolt (210) is threadedly connected with the top surface of the protection shell (21).

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