Bimetal temperature transmitter

Abstract

The utility model discloses a bimetallic temperature transmitter which comprises a device housing with a built-in conversion circuit, a data display screen is fixedly installed on the outer surface of the front side of the device housing, a connecting column is fixedly installed below the device housing, and a temperature measuring column corresponding to the connecting column is arranged at the lower end of the connecting column. A butt joint sleeve is fixedly installed at the upper end of the temperature measuring column, the lower end of the temperature measuring column is in threaded connection with the butt joint sleeve, a thermal insulation mechanism used for preventing high temperature from being transmitted into the device shell is arranged in the connecting column, and an installation flange used for integrally installing the device is installed outside the temperature measuring column in a nested mode. According to the bimetal temperature transmitter, the heat insulation block is arranged in the connecting rod, the heat insulation block can isolate the temperature at the position of the temperature measuring column from being transmitted into the device shell, and the ventilation holes formed in the upper end and the lower end of the connecting rod are matched with the through holes formed in the heat insulation block to achieve the ventilation and heat dissipation purposes; and the device main body is prevented from being damaged when the ultra-high temperature is measured.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature transmitter technical field, concretely is a bimetallic temperature transmitter. BACKGROUND

[0002] Temperature transmitter is a kind of instrument for measuring and transmitting temperature signal, is widely used in industrial automation, heating ventilation air conditioning, chemical industry, food processing and other fields, main function is the temperature signal collected by temperature sensor (such as thermocouple, thermal resistance) is converted into standard electric signal, to facilitate transmission and subsequent control or monitoring.

[0003] In prior art, the patent with publication number CN112161713A discloses a temperature transmitter, including temperature transmitter main body, temperature transmitter main body is fixedly connected with lower shell by positioning structure, upper cover plate is fixedly connected on the outer side of lower shell, positioning block is arranged on the side of lower shell close to upper cover plate, a plurality of first lugs are evenly arranged on the outer side of positioning block, first positioning rod is arranged at the bottom of lower shell relative to positioning block, the temperature transmitter of the present application, the staff rotates temperature transmitter main body, is fixed in the inner side of lower shell by the clamping connection of the outer side of connecting block and the inner side of lower shell, is fixedly connected by the cooperation of fixed groove and third lug, further fixes the position of temperature transmitter main body, to fix the position of temperature transmitter main body, ensure that temperature transmitter main body position will not move due to external force factor in work, cause damage to temperature transmitter main body, improve the service life of device.

[0004] The device described above is installed by adopting a rod-shaped structure, the temperature sensor is arranged at the bottom of the rod-shaped structure and extends into the interior of the measured object, the rod-shaped structure is made of metal material and has good heat transfer effect, when facing the measurement of ultrahigh-temperature object, temperature is transferred to the device shell through the rod-shaped structure, causing damage to internal electrical elements. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a bimetallic temperature transmitter to solve the problem of damage to electrical elements caused by high temperature in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a bimetallic temperature transmitter, including built-in conversion circuit device shell, the front side outer surface of the device shell is fixedly installed with data display screen, further comprising:

[0007] The connecting column is fixedly installed below the device shell, the temperature measuring column corresponding to the connecting column is arranged at the lower end of the connecting column, the butt joint sleeve is fixedly installed at the upper end of the temperature measuring column, and the temperature measuring column is threadedly connected with the butt joint sleeve between the lower end and the butt joint sleeve;

[0008] The connecting column is internally provided with a temperature insulation mechanism for preventing high temperature from being transmitted into the device shell;

[0009] The temperature measuring column is externally nested with a mounting flange for overall installation of the device, and the mounting flange and the temperature measuring column form an up-down sliding structure, and a positioning mechanism is arranged between the mounting flange and the temperature measuring column.

[0010] The temperature measuring column is internally provided with a metal plate assembly fixedly installed at the lower end, the metal plate assembly is arranged in a double-layer structure, and a thermocouple assembly is fixedly installed inside the metal plate assembly, and the thermocouple assembly is connected with the internal circuit of the device shell through a connecting wire.

[0011] Preferably, the temperature insulation mechanism comprises a heat insulation block fixedly installed in the connecting column, the heat insulation block is made of asbestos, and three layers of heat insulation blocks are arranged from top to bottom, and a through hole is formed in the middle of the heat insulation block for air flow.

[0012] Preferably, ventilation holes are formed in the outer surface of the connecting column at both ends at equal intervals and cooperate with the through hole.

[0013] Preferably, the positioning mechanism comprises a mounting block fixedly installed on the upper surface of the mounting flange, and a fixed bolt is threadedly installed in the mounting block.

[0014] Preferably, a limiting groove is formed in the inner side of the mounting flange, and the limiting groove and the limiting block form an up-down sliding structure, and the limiting block is fixedly installed on the outer surface of the temperature measuring column, and a positioning hole is formed in the outer surface of the temperature measuring column.

[0015] Preferably, the positioning holes are uniformly distributed at equal intervals, and the fixed bolt and the positioning hole are mutually clamped.

[0016] Preferably, a signal line for connecting with a host computer is fixedly installed on the upper surface of the device shell, and a wireless transmitter for wireless transmission is fixedly installed on the side surface of the device shell.

[0017] Compared with the prior art, the bimetallic temperature transmitter has the advantages that:

[0018] 1. The device is installed in the device to be measured by the mounting flange, at this time the temperature measuring column is located in the measured object, the metal plate assembly is deformed by heat, and the thermocouple assembly converts the deformation signal into an electrical signal and transmits it to the circuit inside the device shell, and finally displays the temperature data on the data display screen.

[0019] Further, the temperature data can be transmitted to the host computer through the signal line, or can be transmitted through the wireless transmitter, realizing wired and wireless dual-mode communication.

[0020] Further, the inside of the connecting rod is provided with a heat insulation block, the heat insulation block can prevent the temperature at the position of the temperature measuring column from being transmitted to the device shell, and the ventilation holes at the upper and lower ends of the connecting rod are matched with the through holes in the heat insulation block to achieve the purpose of ventilation and heat dissipation, so that the device body is prevented from being damaged when facing ultra-high temperature measurement.

[0021] 2. The sliding connection between the mounting flange and the temperature measuring column can adjust the position between the mounting flange and the temperature measuring column according to different temperature depths, so as to change the depth of the temperature measuring column inserted into the measured object, and achieve the purpose of adapting to different measurement conditions.

[0022] Further, the limiting groove in the inside of the mounting flange is in sliding connection with the limiting block outside the temperature measuring column, and the fixing bolt is arranged above the mounting flange, the fixing bolt is matched and fixed with the positioning hole outside the limiting block, and the mounting flange is fixed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] Figure 2 It is an exploded structure schematic view of the utility model connection column and temperature measuring column position relationship;

[0025] Figure 3 It is a temperature measuring column cross section structure schematic view of the utility model;

[0026] Figure 4 It is a connection column cross section structure schematic view of the utility model;

[0027] Figure 5 It is a mounting flange and temperature measuring column connection relationship structure schematic view of the utility model;

[0028] Figure 6 It is a mounting flange and temperature measuring column connection relationship structure schematic view of the utility model; Figure 5 It is an enlarged structure schematic view of the utility model A place;

[0029] Figure 7 It is a limiting groove structure schematic view of the utility model.

[0030] In the figure: 1, device shell; 2, data display screen; 3, connecting column; 4, temperature measuring column; 5, butt joint sleeve; 6, mounting flange; 7, metal plate assembly; 8, thermocouple assembly; 9, connecting line; 10, heat insulation block; 11, through hole; 12, ventilation hole; 13, limiting groove; 14, limiting block; 15, mounting block; 16, fixing bolt; 17, positioning hole; 18, signal line; 19, wireless transmitter. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0032] Embodiment one: please refer to Figures 1-3 In order to measure temperature, the embodiment provides the following technical scheme, and specifically discloses: the device shell 1 with a built-in conversion circuit, the data display screen 2 is fixedly installed on the front outer surface of the device shell 1, the connecting column 3 is fixedly installed below the device shell 1, the temperature measuring column 4 corresponding to the connecting column 3 is arranged at the lower end of the connecting column 3, the butt sleeve 5 is fixedly installed at the upper end of the temperature measuring column 4, the temperature measuring column 4 is threadedly connected with the butt sleeve 5, the metal plate assembly 7 is fixedly installed at the lower end inside the temperature measuring column 4, the metal plate assembly 7 is arranged in a double-layer structure, the thermocouple assembly 8 is fixedly installed inside the metal plate assembly 7, the thermocouple assembly 8 is connected with the internal circuit of the device shell 1 through the connecting line 9, the signal line 18 for connecting with the host computer is fixedly installed on the upper surface of the device shell 1, and the wireless transmitter 19 for wireless transmission is fixedly installed on the side surface of the device shell 1.

[0033] When the device is used, the device is first installed in the measured device by using the mounting flange 6, at this time, the temperature measuring column 4 at the lower end of the device is inserted into the measured device, when the internal temperature of the measured device changes, the metal plate assembly 7 inside the temperature measuring column 4 will be deformed, the thermocouple assembly 8 converts the deformation signal into an electric signal, which is transmitted to the internal circuit of the device shell 1 through the connecting line 9, and finally the temperature data is displayed in the data display screen 2 on the front side of the device shell 1, at the same time, the temperature signal is transmitted to the host computer through the signal line 18 (when the signal line 18 is not used, the signal is transmitted to the host computer by using the wireless transmitter 19).

[0034] Embodiment two: please refer to Figure 4 In order to isolate temperature, the embodiment provides the following technical scheme, and specifically discloses: the temperature isolation mechanism for preventing high temperature from being transmitted into the device shell 1 is arranged inside the connecting column 3, the temperature isolation mechanism comprises the heat insulation block 10 fixedly installed inside the connecting column 3, the heat insulation block 10 is made of asbestos material, and three layers of heat insulation blocks 10 are arranged from top to bottom, the through hole 11 for air flow is arranged at the middle position of the heat insulation block 10, and the ventilation holes 12 matched with the through hole 11 are arranged at the outer surfaces of the upper and lower ends of the connecting column 3 at equal intervals.

[0035] In the process of using the device, the heat insulation block 10 inside the connecting column 3 is used to isolate the measurement of the temperature measuring column 4 from being transmitted to the device shell 1 as much as possible, and the outside air can enter the inside of the connecting column 3 through the ventilation hole 12, and the air flow cooling purpose is achieved by cooperating with the through hole 11, so as to reduce the temperature of the connecting column 3, and further reduce the damage of the temperature rise of the device shell 1 in the working state.

[0036] Embodiment three: please refer to Figures 5-6 , in order to achieve the purpose of adjusting the temperature measuring depth, the technical scheme is provided as follows, specifically discloses: the temperature measuring column 4 is externally nested with the installation flange 6 for overall installation of the device, and the installation flange 6 and the temperature measuring column 4 form an up-down sliding structure, and a positioning mechanism is arranged between the installation flange 6 and the temperature measuring column 4, the positioning mechanism comprises an installation block 15 fixedly installed on the upper surface of the installation flange 6, and a fixed bolt 16 is threadedly installed in the inside of the installation block 15, a limiting groove 13 is formed in the inside of the installation flange 6, and the limiting groove 13 and the limiting block 14 form an up-down sliding structure, and the limiting block 14 is fixedly installed on the outer surface of the temperature measuring column 4, a positioning hole 17 is formed in the outer surface of the temperature measuring column 4, the positioning holes 17 are uniformly distributed at equal intervals, and the fixed bolt 16 and the positioning hole 17 are mutually clamped.

[0037] When facing different temperature measuring depths, the clamping and fixing between the fixed bolt 16 and the positioning hole 17 are loosened, then the installation flange 6 is moved up and down, at this time the limiting groove 13 in the inside of the installation flange 6 and the limiting block 14 on the outer surface of the temperature measuring column 4 slide, when sliding to the appropriate position, the fixed bolt 16 is rotated again to be clamped and fixed with the corresponding positioning hole 17, so that the position between the installation flange 6 and the temperature measuring column 4 is changed, so that the temperature measuring column 4 can be inserted into different depths during installation.

[0038] In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0039] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bimetallic temperature transmitter, comprising a device housing (1) with a built-in conversion circuit, wherein a data display screen (2) is fixedly mounted on the front outer surface of the device housing (1), characterized in that: Also includes: A connecting column (3) is fixedly installed below the device housing (1), and a temperature measuring column (4) corresponding thereto is provided at the lower end of the connecting column (3), and a docking sleeve (5) is fixedly installed at the upper end of the temperature measuring column (4), and the lower end of the temperature measuring column (4) is threadedly connected to the docking sleeve (5); A heat-insulating mechanism is provided inside the connecting column (3) for preventing high temperature from being transferred to the device housing (1); A mounting flange (6) for mounting the entire device is nested and installed outside the temperature measuring column (4), and an up-and-down sliding structure is formed between the mounting flange (6) and the temperature measuring column (4), and a positioning mechanism is provided between the mounting flange (6) and the temperature measuring column (4); A metal plate assembly (7) is fixedly installed at the lower end of the temperature measuring column (4), and the metal plate assembly (7) is configured as a double-layer structure. A thermocouple assembly (8) is fixedly installed on the inner side of the metal plate assembly (7), and the thermocouple assembly (8) is connected to the internal circuit of the device housing (1) via a connecting wire (9).

2. A bimetallic temperature transmitter according to claim 1, characterized in that: The thermal insulation mechanism comprises a thermal insulation block (10) fixedly mounted inside the connecting column (3), wherein the thermal insulation block (10) is made of asbestos material and has three layers from top to bottom, and a through hole (11) for air flow is provided through the middle of the thermal insulation block (10).

3. The bimetallic temperature transmitter according to claim 2, characterized in that: Ventilation holes (12) cooperating with the through holes (11) are provided at equal intervals on the outer surfaces of the upper and lower ends of the connecting column (3).

4. The bimetallic temperature transmitter according to claim 1, characterized in that: The positioning mechanism comprises a mounting block (15) fixedly mounted on the upper surface of the mounting flange (6), and a fixing bolt (16) is threadedly mounted inside the mounting block (15).

5. The bimetallic temperature transmitter according to claim 4, characterized in that: A limiting groove (13) is provided on the inner side of the mounting flange (6), and an up-and-down sliding structure is formed between the limiting groove (13) and the limiting block (14), and the limiting block (14) is fixedly mounted on the outer surface of the temperature measuring column (4), and a positioning hole (17) is provided on the outer surface of the temperature measuring column (4).

6. The bimetallic temperature transmitter according to claim 5, characterized in that: The positioning holes (17) are evenly distributed at equal intervals, and the fixing bolts (16) and the positioning holes (17) are engaged with each other.

7. The bimetallic temperature transmitter according to claim 1, characterized in that: A signal line (18) for connecting to a main control computer is fixedly mounted on the upper surface of the device housing (1), and a wireless transmitter (19) for wireless transmission is fixedly mounted on the side of the device housing (1).

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