Thermoelement for measuring temperature

Abstract

The utility model relates to the field of industrial temperature measurement discloses a filamentous thermocouple temperature measurement element, including the protective sleeve, the inner surface of protective sleeve is passed through and is fixedly connected with the temperature measurement pipe, the outer surface sliding of protective sleeve is connected with the flange plate, the outer surface top of flange plate is provided with the positioning assembly, the positioning assembly includes the fastener, the inner surface of fastener is passed through with the outer surface of protective sleeve and is connected with sliding, the outer surface top of flange plate is fixedly connected with the clamping piece, the inner surface of clamping piece is equipped with the damping line, the outer surface of damping line is connected with the outer surface of protective sleeve contact. In the utility model, through flange plate can along the surface of protective sleeve and slide, and through positioning assembly carries out optional location, to meet the different equipment, different temperature measurement point to the difference in demand of temperature measurement depth, promotes the scene adaptability of element.

Description

Technical Field

[0001] This utility model relates to the field of industrial temperature measurement, and in particular to a wire thermocouple temperature measuring element. Background Technology

[0002] A wire thermocouple is a temperature sensor based on the Seebeck effect. It is made of two thin metal wires of different materials welded together. It calculates the temperature by measuring the thermoelectric potential generated by the temperature difference. Due to its fast response speed and high temperature measurement accuracy, wire thermocouples are widely used for temperature measurement in various environments in industrial production, scientific research and other fields.

[0003] When installing a thermocouple, the thermocouple's measuring end is first inserted into the device to be measured. After it is inserted into the designated position, it is then secured to the device's perimeter using the flange fixed to the thermocouple. This ensures that the thermocouple's measuring end is always fixed at the designated depth, allowing the thermocouple to continuously measure the internal temperature of the designated device.

[0004] Considering that the depth to which the temperature sensing tube on a thermocouple is inserted into the measured environment is often fixed, if the depth needs to be adjusted, either the thermocouple must be replaced or multiple components must be disassembled and adjusted using special tools. These methods are difficult to conveniently and stably meet the different requirements of different devices and different temperature measuring points of the same device for the temperature measuring depth, which greatly limits the flexible application of the element in various scenarios and reduces the adaptability and practicality of temperature measurement. Therefore, a wire thermocouple temperature measuring element is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a wire thermocouple temperature sensing element, which aims to solve the problem that in the prior art, the temperature sensing tube of a traditional thermocouple is usually inserted to a fixed depth in the measured environment. If the depth needs to be adjusted, either the thermocouple must be replaced or multiple parts must be disassembled with special tools for adjustment. Such methods are difficult to conveniently and stably meet the different requirements of temperature sensing depth for different devices and different temperature sensing points of the same device, which greatly limits the flexible application of the element in various scenarios and reduces the adaptability and practicality of temperature measurement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wire thermocouple temperature measuring element, including a protective sleeve, a temperature measuring tube is connected through and fixedly connected to the inner surface of the protective sleeve, a flange is slidably connected to the outer surface of the protective sleeve, and a positioning component is provided on the top of the outer surface of the flange.

[0007] The positioning component includes a fastener, the inner surface of which penetrates and is slidably connected to the outer surface of the protective sleeve. A clamping member is fixedly connected to the top of the outer surface of the flange. The inner surface of the clamping member is provided with damping grooves. The outer surface of the damping grooves is in contact with the outer surface of the protective sleeve. The inner surface of the fastener is in contact with the outer surface of the clamping member.

[0008] As a further description of the above technical solution:

[0009] The flange has threads on the top of its outer surface, and the bottom of the inner surface of the fastener penetrates and is threadedly connected to the outer surface of the threads.

[0010] As a further description of the above technical solution:

[0011] The top of the inner surface of the fastener is tapered, and the outer surface of the clamping member is also tapered.

[0012] As a further description of the above technical solution:

[0013] The clamping elements are provided in multiple sets and are evenly arranged around the top of the outer surface of the flange.

[0014] As a further description of the above technical solution:

[0015] A guide strip is fixedly connected to the bottom of the outer surface of the protective sleeve, and the inner surface of the flange is slidably connected to the outer surface of the guide strip.

[0016] As a further description of the above technical solution:

[0017] The guide strips are provided in multiple sets and are evenly wrapped around the bottom of the outer surface of the protective sleeve.

[0018] As a further description of the above technical solution:

[0019] A transmission head is fixedly connected to the top of the outer surface of the protective sleeve.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the flange can slide along the surface of the protective sleeve and be arbitrarily limited by the positioning component, thereby conveniently adjusting the insertion depth of the temperature measuring tube to meet the differentiated requirements of different equipment and different temperature measuring points for temperature measuring depth, and improve the scene adaptability of the component.

[0022] 2. In this utility model, by means of the threaded connection between the fastener and the flange in the positioning component, and the tapered fit between the fastener and the clamping part, the flange can be quickly limited and unlocked simply by tightening / loosening the fastener; at the same time, the damping groove in the clamping part can enhance the friction with the protective sleeve, ensuring that the flange position is stable and does not shift after being limited, taking into account both ease of operation and reliability of fixation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of a wire thermocouple temperature measuring element proposed in this utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of a fastener for a wire thermocouple temperature sensing element proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the flange structure of a filamentary thermocouple temperature measuring element proposed in this utility model.

[0026] Legend:

[0027] 1. Protective sleeve; 2. Temperature measuring tube; 3. Transmission head; 4. Flange; 5. Positioning assembly; 501. Fastener; 502. Clamping part; 503. Thread; 504. Damping texture; 6. Guide strip. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-3This utility model provides an embodiment of a wire thermocouple temperature sensing element, including a protective sleeve 1. A temperature sensing tube 2 is penetrated and fixedly connected to the inner surface of the protective sleeve 1. The protective sleeve 1 protects the temperature sensing tube 2, preventing it from directly contacting corrosive or abrasive media in the measured environment and extending its service life. A flange 4 is slidably connected to the outer surface of the protective sleeve 1. The flange 4 is used to install and fix the entire temperature sensing element on the equipment requiring temperature measurement, providing a mounting support point. A positioning component 5 is provided on the top of the outer surface of the flange 4. The positioning component 5 is used to fix the position of the flange 4, thereby adjusting and fixing the depth of the temperature sensing tube 2 inserted into the measured environment. The positioning component 5 includes a fastener 501, the inner surface of which penetrates and is slidably connected to the outer surface of the protective sleeve 1. The fastener 501 can slide along the protective sleeve 1. The sleeve 1 moves up and down, providing an operational basis for subsequent clamping with the flange 4. A clamping element 502 is fixedly connected to the top of the outer surface of the flange 4. The clamping element 502 is a key component that cooperates with the fastener 501 to achieve clamping and fixing. The inner surface of the clamping element 502 is provided with damping grooves 504. The damping grooves 504 can increase the friction between the clamping element 502 and the protective sleeve 1, improve the stability of the fixation, and prevent the protective sleeve 1 from sliding. The outer surface of the damping grooves 504 is in contact with the outer surface of the protective sleeve 1. Through the contact connection, the friction of the damping grooves 504 restricts the movement of the protective sleeve 1 relative to the flange 4. The inner surface of the fastener 501 is in contact with the outer surface of the clamping element 502. After the fastener 501 contacts the clamping element 502, it can squeeze the clamping element 502 to move it closer to the protective sleeve 1, thereby achieving the clamping action.

[0030] Reference Figures 2-3 The outer surface of flange 4 has a thread 503 on its top. Thread 503 provides a screw-in structure for fastener 501, allowing fastener 501 to move up and down and lock via threaded connection. The bottom of the inner surface of fastener 501 penetrates and is threadedly connected to the outer surface of thread 503. Through the threaded connection, fastener 501 can be screwed in or out relative to flange 4, thereby controlling the degree of compression on clamping member 502. The top of the inner surface of fastener 501 is tapered, and the tapered inner surface design allows fastener 501 to be screwed in. At the same time, the conical surface of the clamping member 502 is gradually squeezed, so that the clamping member 502 generates a centripetal clamping force. The outer surface of the clamping member 502 is also set as a conical surface. The conical surface of the clamping member 502 cooperates with the conical inner surface of the fastener 501, so that the screwing action of the fastener 501 can be effectively converted into the clamping action of the clamping member 502. There are multiple sets of clamping members 502, which are evenly wrapped around the top of the outer surface of the flange 4. Multiple sets of evenly wrapped clamping members 502 can clamp the protective sleeve 1 from multiple directions, ensuring the uniformity and stability of clamping.

[0031] Reference Figures 1-2A guide strip 6 is fixedly connected to the bottom of the outer surface of the protective sleeve 1. The guide strip 6 is used to guide the sliding of the flange 4, prevent the flange 4 from rotating during the sliding process, and ensure linear movement when adjusting the depth. The inner surface of the flange 4 penetrates and slides through the outer surface of the guide strip 6. Through the sliding connection with the guide strip 6, the flange 4 can slide smoothly along the axial direction of the protective sleeve 1 to achieve depth adjustment. There are multiple sets of guide strips 6, which are evenly wrapped around the bottom of the outer surface of the protective sleeve 1. The multiple sets of evenly wrapped guide strips 6 further improve the stability and accuracy of the guidance and prevent the flange 4 from deviating. A transmission head 3 is fixedly connected to the top of the outer surface of the protective sleeve 1. The transmission head 3 is used to transmit the temperature signal detected by the temperature measuring tube 2 to the external display or control device to realize the output of the temperature signal.

[0032] Working principle: When it is necessary to adjust the insertion depth of the temperature measuring tube 2, first unscrew the fastener 501 upwards, so that the fastener 501 no longer applies compressive force to the conical surface of the clamping member 502, creating conditions for releasing the limiting force on the flange 4. After the compression stops, the clamping member 502 is no longer subjected to centripetal compressive force, thus it can recover its deformation and move away from the protective sleeve 1. This causes the damping grooves 504 set on the inner surface of the clamping member 502 to stop contacting the surface of the protective sleeve 1, eliminating the friction between the two, thereby releasing the movement restriction on the protective sleeve 1. After the limiting force is released, the flange 4 can move relative to the protective sleeve 1. The insertion depth of the temperature measuring tube 2 is adjusted by sliding the protective sleeve 1. After adjustment, the fastener 501 is tightened again with the thread 503 on the flange 4. When the fastener 501 is tightened, it moves downward and gradually approaches the clamping part 502 through the transmission of the thread 503. After the damping thread 504 contacts the surface of the protective sleeve 1, it uses friction to resist the relative movement between the protective sleeve 1 and the flange 4. Through friction fixation, the flange 4 is stably maintained in the adjusted position, ensuring that the insertion depth of the temperature measuring tube 2 is fixed and ensuring the accuracy of temperature measurement.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire thermocouple temperature sensing element, comprising a protective sleeve (1), characterized in that: The inner surface of the protective sleeve (1) is connected to a temperature measuring tube (2) through and fixedly connected, and the outer surface of the protective sleeve (1) is slidably connected to a flange (4), and a positioning component (5) is provided on the top of the outer surface of the flange (4). The positioning component (5) includes a fastener (501), the inner surface of which penetrates and slides through the outer surface of the protective sleeve (1). A clamping member (502) is fixedly connected to the top of the outer surface of the flange (4). The inner surface of the clamping member (502) is provided with damping texture (504). The outer surface of the damping texture (504) is in contact with the outer surface of the protective sleeve (1). The inner surface of the fastener (501) is in contact with the outer surface of the clamping member (502).

2. The wire thermocouple temperature sensing element according to claim 1, characterized in that: The flange (4) has a thread (503) on the top of its outer surface, and the bottom of the inner surface of the fastener (501) penetrates and is threadedly connected to the outer surface of the thread (503).

3. The wire thermocouple temperature sensing element according to claim 1, characterized in that: The top of the inner surface of the fastener (501) is tapered, and the outer surface of the clamping member (502) is also tapered.

4. The wire thermocouple temperature sensing element according to claim 1, characterized in that: The clamping member (502) is provided in multiple sets and is evenly surrounded on the top of the outer surface of the flange (4).

5. The wire thermocouple temperature sensing element according to claim 1, characterized in that: The bottom of the outer surface of the protective sleeve (1) is fixedly connected to a guide strip (6), and the inner surface of the flange (4) is slidably connected to the outer surface of the guide strip (6).

6. The wire thermocouple temperature sensing element according to claim 5, characterized in that: The guide strip (6) is provided in multiple sets and is evenly wrapped around the bottom of the outer surface of the protective sleeve (1).

7. The wire thermocouple temperature sensing element according to claim 1, characterized in that: A transmission head (3) is fixedly connected to the top of the outer surface of the protective sleeve (1).

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