Temperature thermocouple

Abstract

The utility model provides a temperature thermocouple, which relates to the field of temperature thermocouples and comprises a junction box, one side of the junction box is communicated with a box seat, and one side of the box seat is provided with a sleeve. When the sleeve enters the inner cavity of the box seat for connection, the sealing gasket is in contact with the box seat, so that the sealing performance of a connection gap between the sleeve and the box seat is ensured, an external water source or moisture is effectively prevented from invading, and the surfaces of the electrode wires can be protected by arranging the two electrode wires in the inner cavity of the insulating bead tube; the insulation sleeve drives the clamping ring to enter the inner cavity of the insulation bead tube and make contact with the sealing ring, the sealing performance of the connecting position of the insulation sleeve and the insulation bead tube is ensured, the inner cavity of the insulation bead tube is separated through the blocking disc, the insulation sleeve is in a sealed environment state, and then the measuring end is in a sealed environment in the insulation sleeve. Erosion caused by external factors is effectively prevented, the safety of the measuring end during operation is ensured, the measuring precision of the later working end is improved, and the service life of the later working end is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of temperature measuring thermocouple, concretely a kind of temperature measuring thermocouple. BACKGROUND

[0002] Temperature measuring thermocouple is a kind of common temperature sensor, is widely used in various industrial and laboratory environments, it measures temperature by the temperature difference of the junction of two different metals to generate potential difference.

[0003] Temperature measuring thermocouple is composed of two different metal wires, these wires are connected together at one end, form the so-called measuring end, and the wire surface and the measuring end surface are sleeved with sleeve, connected with terminal box through sleeve, realize an integral whole, in the temperature measuring process, by placing the one end of sleeve in the liquid to be measured, and then the measuring end will cause voltage change due to temperature change, temperature can be calculated by voltage change;However, temperature measuring thermocouple is used in industrial, laboratory and other environments, and then will face different harsh external environment, such as heavy humidity or more liquid environment, since the terminal box of temperature measuring thermocouple and sleeve are not provided with sealing element, when facing the environment of heavy humidity or more liquid, external humidity or liquid can enter through gap, so as to easily cause erosion to thermocouple measuring end, affect its measurement accuracy and service life.

[0004] Therefore, the utility model provides a kind of temperature measuring thermocouple to solve above-mentioned problem. UTILITY MODEL CONTENT

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] A kind of temperature measuring thermocouple, including terminal box, the side of the terminal box is communicated with box seat, the side of the box seat is provided with sleeve, and the surface of sleeve is fixedly connected with sealing pad, the inner chamber of the sleeve is provided with insulating bead tube, and one end of the insulating bead tube is provided with insulating sleeve, the inner chamber of the insulating bead tube is provided with two electrode wires, one end of the insulating sleeve is fixedly connected with snap ring, the inner chamber of the insulating bead tube is fixedly connected with blocking disc, two electrode wires pass through blocking disc and extend to the inner chamber of insulating sleeve, one end of two electrode wires in the inner chamber of insulating sleeve is connected, and forms measuring end, one end of the insulating bead tube is fixedly connected with sealing ring.

[0007] Further, in the utility model, the diameter of the snap ring is matched with the inner diameter of the insulating bead tube, the end of the snap ring away from the insulating sleeve extends to the inner chamber of the insulating bead tube, and is movably connected with the inner chamber of the insulating bead tube, the side of the sealing ring away from the insulating bead tube is in contact with the insulating sleeve.

[0008] Further, in the utility model, the junction box includes box body, box cover and junction post, one end of the electrode wire extends to the inner chamber of the junction box and is connected with the junction post inside the junction box.

[0009] Further, in the utility model, one end of the sleeve extends to the inner chamber of the box seat and is threadedly connected with the inner chamber of the box seat, and one side of the sealing gasket is in contact with the box seat.

[0010] Beneficial effects, the utility model has the following beneficial effects:

[0011] The sealing gasket is in contact with the box seat when the sleeve is connected into the inner chamber of the box seat, the sealing property of the joint gap between the sleeve and the box seat is ensured, the invasion of external water source or moisture is effectively prevented, the electrode wire surface is protected through the inner chamber of the insulating bead tube, the clamping ring is driven into the inner chamber of the insulating bead tube through the insulating sleeve and is in contact with the sealing ring, the sealing property of the joint between the insulating sleeve and the insulating bead tube is ensured, the inner chamber of the insulating bead tube is blocked through the blocking disc, the insulating sleeve is in a sealed environment state, the measurement end is in a closed environment inside the insulating sleeve, the corrosion caused by external factors is effectively prevented, the safety of the measurement end during operation is ensured, and the measurement precision and service life of the later work end are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the structure schematic diagram of the utility model when the box seat and the sleeve are separated;

[0014] Figure 3 It is the structure schematic diagram of the utility model when the sleeve is cut open;

[0015] Figure 4 It is the structure schematic diagram of the utility model when the insulating bead tube and the insulating sleeve are separated.

[0016] In the drawing:

[0017] 1, junction box; 2, box seat; 3, sleeve; 4, sealing gasket; 5, insulating bead tube; 6, insulating sleeve; 7, electrode wire; 8, sealing ring; 9, clamping ring; 10, blocking disc. DETAILED DESCRIPTION

[0018] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0019] Example 1

[0020] like Figures 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a temperature measuring thermocouple, including a junction box 1, with a box base 2 connected to one side of the junction box 1. A sleeve 3 is provided on one side of the box base 2, and a sealing gasket 4 is fixedly connected to the surface of the sleeve 3. An insulating bead tube 5 is provided in the inner cavity of the sleeve 3, and an insulating sleeve 6 is provided at one end of the insulating bead tube 5. Two electrode wires 7 are provided in the inner cavity of the insulating bead tube 5. A retaining ring 9 is fixedly connected to one end of the insulating sleeve 6. A blocking disc 10 is fixedly connected to the inner cavity of the insulating bead tube 5. The two electrode wires 7 pass through the blocking disc 10 and extend into the inner cavity of the insulating sleeve 6. The two electrode wires 7 are connected at one end of the inner cavity of the insulating sleeve 6 to form a measuring end. A sealing ring 8 is fixedly connected to one end of the insulating bead tube 5.

[0021] like Figures 1-4 As shown, the connection is achieved by entering the inner cavity of the housing 2 through the sleeve 3, and the sealing gasket 4 contacts the housing 2 to seal the gap between the sleeve 3 and the housing 2, preventing the intrusion of external water or moisture. The insulating bead tube 5 is located in the inner cavity of the sleeve 3, and the two electrode wires 7 are located in the inner cavity of the insulating bead tube 5, thereby protecting the surface of the electrode wires 7 and preventing interference from external factors. The insulating sleeve 6 drives the retaining ring 9 into the inner cavity of the insulating bead tube 5, and it contacts the insulating sleeve 6 and the blocking disc 10, ensuring the sealing of the connection between the insulating sleeve 6 and the insulating bead tube 5. The blocking disc 10 isolates the inner cavity of the insulating bead tube 5, thereby keeping the insulating sleeve 6 in a sealed environment. One end of the electrode wire 7 passes through the blocking disc 10 and enters the inner cavity of the insulating sleeve 6 to connect and form a measurement. The measuring end is in the sealed environment inside the insulating sleeve 6, effectively preventing corrosion caused by external factors, ensuring the safety of the measuring end during operation, and improving the measurement accuracy and service life of the working end in the later stage.

[0022] Example 2

[0023] Reference Figures 1-4This is the second embodiment of the present invention, which is based on the previous embodiment.

[0024] In this embodiment, the diameter of the retaining ring 9 is adapted to the inner diameter of the insulating bead tube 5. The end of the retaining ring 9 away from the insulating sleeve 6 extends into the inner cavity of the insulating bead tube 5 and is movably connected to the inner cavity of the insulating bead tube 5. The side of the sealing ring 8 away from the insulating bead tube 5 contacts the insulating sleeve 6.

[0025] Junction box 1 includes a box body, a box cover and a terminal block. One end of the electrode wire 7 extends into the inner cavity of junction box 1 and is connected to the terminal block inside junction box 1.

[0026] One end of the sleeve 3 extends into the inner cavity of the housing 2 and is threadedly connected to the inner cavity of the housing 2, and one side of the sealing gasket 4 contacts the housing 2.

[0027] like Figures 1-4 As shown, junction box 1 provides space for connecting electrode wires 7. The retaining ring 9 is adapted to the insulating bead tube 5, thus ensuring the firmness of the connection during subsequent snap-fitting. The sealing ring 8 contacts the insulating sleeve 6, thereby ensuring the sealing of the connection between the insulating sleeve 6 and the insulating bead tube 5. The sleeve 3 and the box seat 2 are connected by threads, thereby improving the convenience of connecting the box seat 2 and the sleeve 3. At the same time, the sealing gasket 4 contacts the box seat 2, which can seal the gap at the connection between the box seat 2 and the sleeve 3, thereby ensuring the sealing of the connection between the box seat 2 and the sleeve 3 and effectively preventing the entry of external water sources or moisture.

[0028] In use, first, the component electrode lead wire 7 is placed into the inner cavity of the component insulating bead tube 5, ensuring that one end of the electrode lead wire 7 passes through the blocking disc 10, and the two ends away from the blocking disc 10 are connected to each other to form a measurement end, then the component insulating sleeve 6 is taken, and the insulating sleeve 6 drives the component snap ring 9 to be inserted into the inner cavity of the insulating bead tube 5, since the diameter of the snap ring 9 matches the inner diameter of the insulating bead tube 5, the snap ring 9 can smoothly enter the inner cavity of the insulating bead tube 5 and be clamped, after the snap ring 9 enters the inner cavity of the insulating bead tube 5, the insulating sleeve 6 contacts the sealing ring 8 at one end of the insulating bead tube 5, ensuring the sealing of the clamped part of the insulating sleeve 6 and the insulating bead tube 5, so that the inner cavity of the insulating sleeve 6 is in a sealed state, and the measurement end is in a closed environment after entering the inner cavity of the insulating sleeve 6, effectively preventing external factors from corroding the measurement end, the component sleeve 3 is sleeved on the surfaces of the insulating bead tube 5 and the insulating sleeve 6, so as to protect the two components, the sleeve 3 is aligned with the inner cavity of the box seat 2, and the sleeve 3 is rotated to enter the inner cavity of the box seat 2 and be connected during the rotation, and the sleeve 3 drives the sealing gasket 4 to contact the box seat 2 during the rotation, so as to seal the connection between the sleeve 3 and the box seat 2, effectively preventing external water sources or moisture from entering, which can improve the measurement accuracy and service life of the measurement end in the later period, when temperature measurement is needed, the electrode lead wire 7 is connected with the terminal post in the terminal box 1, ensuring the transmission of the electrical signal of the electrode lead wire 7 in the later period, then the sleeve 3 is inserted into the liquid to be measured, and the temperature of the liquid is transmitted to the measurement end formed by the sleeve 3, the insulating sleeve 6 and the electrode lead wire 7, the change of the liquid temperature is sensed by the measurement end to generate a voltage, and the voltage is proportional to the temperature difference, and the temperature can be calculated according to the voltage signal data according to the voltage change output, so that the temperature measurement work is completed.

[0029] The standard parts used in the application file can be purchased from the market, and can be customized according to the description and drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the application is mainly used to protect the mechanical device, so the control mode and circuit connection are not explained in detail.

[0030] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art without departing from the spirit and scope of the utility model can make various changes and decorations. Therefore, the protection scope of the utility model is defined by the claims.

Claims

1. A temperature measuring thermocouple comprising a junction box (1), characterised in that: The side of the terminal box (1) is communicated with a box seat (2), one side of the box seat (2) is provided with a sleeve (3), and the surface of the sleeve (3) is fixedly connected with a sealing gasket (4), the inner cavity of the sleeve (3) is provided with an insulating bead tube (5), and one end of the insulating bead tube (5) is provided with an insulating sleeve (6), the inner cavity of the insulating bead tube (5) is provided with two electrode leads (7), one end of the insulating sleeve (6) is fixedly connected with a clamping ring (9), the inner cavity of the insulating bead tube (5) is fixedly connected with a blocking disc (10), two electrode leads (7) extend through the blocking disc (10) and extend to the inner cavity of the insulating sleeve (6), two electrode leads (7) are connected at one end in the inner cavity of the insulating sleeve (6) and form a measuring end, and one end of the insulating bead tube (5) is fixedly connected with a sealing ring (8).

2. The temperature measuring thermocouple of claim 1, wherein: The diameter of the clamping ring (9) is matched with the inner diameter of the insulating bead tube (5), one end of the clamping ring (9) away from the insulating sleeve (6) extends to the inner cavity of the insulating bead tube (5) and is movably connected with the inner cavity of the insulating bead tube (5), and the side of the sealing ring (8) away from the insulating bead tube (5) is in contact with the insulating sleeve (6).

3. The temperature measuring thermocouple of claim 1, wherein: The terminal box (1) comprises a box body, a box cover and a terminal post, one end of the electrode lead (7) extends to the inner cavity of the terminal box (1) and is connected with the terminal post inside the terminal box (1).

4. The temperature measuring thermocouple of claim 1, wherein: One end of the sleeve (3) extends to the inner cavity of the box seat (2) and is screw-connected with the inner cavity of the box seat (2), and one side of the sealing gasket (4) is in contact with the box seat (2).

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