Mounting structure for thermocouple

Abstract

The utility model provides a kind of installation structure of thermocouple, including junction box, the junction box bottom is equipped with protective sleeve, the protective sleeve is equipped with hexahedron, the hollow outer thread column of the hexahedron lower surface is equipped with, the protective sleeve is equipped on the outer thread column, the side of the hexahedron away from outer thread column is equipped with connecting ring, the connecting ring is equipped on the protective sleeve, the connecting ring is connected with junction box by connecting piece, the connecting ring is connected with hexahedron by multiple screws, the utility model has the beneficial effects as follows: the damaged position of thread is replaced separately, without replacing entire thermocouple when thread is damaged, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to a thermocouple mounting structure and belongs to the field of thermocouples. Background Technology

[0002] A thermocouple is a commonly used temperature measurement sensor that operates based on the Seebeck effect (thermoelectric effect). The junction box and the protective sleeve mounted on the junction box are among the main components of a thermocouple. A hexahedron is mounted on the protective sleeve, and an external threaded post is mounted on one side of the hexahedron. After the handle is locked onto the hexahedron, it is easy to screw the external threaded post into the threaded hole on the surface of the container, thus completing the installation of the thermocouple on the surface of the container. The above is one of the common installation methods for thermocouples. Currently, the structure formed by the hexahedron and the external threaded post is fixedly connected to the protective sleeve. When the threads on the external threaded post are damaged due to impact or other reasons, the replacement of the external threaded post will not change, thus affecting the normal installation of the thermocouple. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a thermocouple installation structure to solve the problems mentioned in the background art. This utility model enables the individual replacement of the threaded damaged part, without having to replace the entire thermocouple when the thread is damaged, thus reducing maintenance costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thermocouple mounting structure, including a junction box, a protective sleeve installed at the bottom of the junction box, a hexahedron fitted on the protective sleeve, a hollow externally threaded post installed on the lower surface of the hexahedron, the externally threaded post fitted on the protective sleeve, a connecting ring provided on the side of the hexahedron away from the externally threaded post, the connecting ring fitted on the protective sleeve, the connecting ring connected to the junction box via a connector, and the connecting ring connected to the hexahedron via multiple screws.

[0005] Furthermore, the connector includes a support plate, the support plate is installed on the annular side of the connecting ring, a screw is installed at the end of the support plate away from the connecting ring, an ear plate is installed on the outer surface of the junction box and arranged parallel to the support plate, a through hole is opened at the end of the ear plate away from the junction box, the screw passes through the through hole, and nuts are provided on both sides of the through hole along the length of the screw, the nuts are threaded onto the screw.

[0006] Furthermore, the end of the screw near the support plate is threaded with an internal threaded sleeve, which is fixedly connected to the support plate.

[0007] Furthermore, the hexahedron has multiple screw holes equidistantly arranged in a ring on the side facing the connecting ring, and the connecting ring has multiple small holes equidistantly arranged in a ring corresponding to the screw holes on the side facing the hexahedron. The screw passes through the small holes and is threaded into the screw holes.

[0008] Furthermore, a support ring is provided on the side of the connecting ring opposite to the hexahedron, and there is a gap between the support ring and the connecting ring. The support ring is sleeved on the protective sleeve, and there is a gap between the support ring and the connecting ring. An L-shaped plate is installed on the annular side of the support ring, and a support plate that is connected and fixed to the connecting ring is installed on the end of the L-shaped plate away from the support ring. A plurality of circular holes aligned with small holes are opened at equal intervals on one side of the support ring, and the screw passes through the channel formed by the circular holes and the small holes.

[0009] Furthermore, the junction box opening is threadedly connected to a cover, and two symmetrically arranged protrusions are installed in the middle of the side of the cover facing away from the junction box.

[0010] Furthermore, a conduit is installed on the outer surface of the junction box, and the conduit and the junction box are integrally formed.

[0011] The beneficial effects of this utility model are:

[0012] 1. The hexahedron, external threaded post, and protective sleeve are detachably connected by a connecting ring and screws. When the external threaded post is damaged due to impact, simply unscrew the screws to remove the hexahedron and external threaded post from the protective sleeve for replacement. There is no need to replace the entire thermocouple, which reduces maintenance costs and parts consumption.

[0013] 2. Adjust the relative position of the screw and the ear plate, thereby changing the relative position between the connecting ring and the protective sleeve. After the hexahedron moves to the required position, use two nuts to restrict the relative position of the screw and the ear plate, thereby changing the relative position between the hexahedron and the protective sleeve, so as to adjust the length of the protective sleeve extending into the container as needed.

[0014] 3. When installing the screw, make sure the screw passes through the support ring and the connecting ring and then connects to the hexahedron thread. Under the restriction of the support ring, the screw head will not contact the connecting ring. When the screw cannot be disassembled normally, the screw can be cut off by using the gap between the support ring and the connecting ring to complete the disassembly of the hexahedron and the protective sleeve. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the installation structure of a thermocouple according to the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is an assembly diagram of the protective sleeve, hexahedron, and junction box in the installation structure of a thermocouple according to this utility model.

[0019] Figure 4 This is an assembly diagram of the support ring, support plate and connecting ring in the installation structure of a thermocouple according to this utility model;

[0020] In the diagram: 1-junction box, 2-hexahedron, 3-external threaded post, 4-protective sleeve, 5-screw, 6-nut, 7-ear plate, 8-box cover, 9-protrusion, 10-conduit tube, 11-support ring, 12-connecting ring, 13-support plate, 14-internal threaded sleeve, 15-L-shaped plate, 16-screw, 17-screw hole, 18-through hole, 19-round hole, 20-small hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1 and Figure 3 This utility model provides a technical solution: a thermocouple installation structure, including a junction box 1, a protective sleeve 4 installed at the bottom of the junction box 1, a cover 8 threadedly connected to the open end of the junction box 1, two symmetrically arranged protrusions 9 installed in the middle of the side of the cover 8 away from the junction box 1, the design of the protrusions 9 is to facilitate unscrewing the cover 8, a conduit 10 is installed on the outer surface of the junction box 1, the conduit 10 and the junction box 1 are integrally formed, the conduit 10 provides a channel for wire threading.

[0023] See Figures 1-4A hexahedron 2 is fitted onto the protective sleeve 4. A hollow externally threaded post 3 is installed on the lower surface of the hexahedron 2. The externally threaded post 3 is fitted onto the protective sleeve 4. A connecting ring 12 is provided on the side of the hexahedron 2 away from the externally threaded post 3. The connecting ring 12 is fitted onto the protective sleeve 4. The connecting ring 12 is connected to the hexahedron 2 by multiple screws 16. The side of the hexahedron 2 facing the connecting ring 12 has multiple screw holes 17 arranged in a ring at equal intervals. The side of the connecting ring 12 facing the hexahedron 2 has multiple small holes 20 arranged in a ring at equal intervals, which are aligned with the screw holes 17. The screws 16 pass through the small holes 20 and are threaded into the screw holes 17. The hexahedron 2, the externally threaded post 3 and the protective sleeve 4 adopt a detachable connection design with the connecting ring 12 and the screws 16. When the threads of the external threaded post 3 are damaged due to accidental impact, simply unscrew the screw 16 between the connecting ring 12 and the hexahedron 2, and the hexahedron 2, along with the external threaded post 3, can be removed from the protective sleeve 4 for individual replacement. This modular design eliminates the need to replace the entire thermocouple; only the damaged parts need to be replaced, significantly reducing maintenance costs and parts consumption, while minimizing material waste and improving the economy and convenience of maintenance.

[0024] See Figures 1-4 A support plate 13 is mounted on the annular side of the connecting ring 12. An internally threaded sleeve 14 is mounted on the end of the support plate 13 away from the connecting ring 12. A screw 5 is internally threaded onto the sleeve 14. Ear plates 7, arranged parallel to the support plate 13, are mounted on the outer surface of the junction box 1. A through hole 18 is provided at the end of the ear plate 7 away from the junction box 1. The screw 5 passes through the through hole 18. Nuts 6 are provided on both sides of the through hole 18 along the length of the screw 5. The nuts 6 are threaded onto the screw 5. By adjusting the relative position of the screw 5 and the ear plate 7, the position of the connecting ring 12 on the protective sleeve 4 can be changed. When the hexahedron 2 moves to the desired position with the connecting ring 12, the nuts 6 on both sides of the ear plate 7 are used to tighten the screw 5, locking the relative position of the connecting ring 12 and the ear plate 7, thereby fixing the relative position of the hexahedron 2 and the protective sleeve 4. This design allows for flexible adjustment of the length of the protective sleeve 4 extending into the container according to actual installation requirements, adapting to temperature measurement scenarios at different depths, and improving the adaptability and flexibility of thermocouple installation.

[0025] See Figures 1-4A support ring 11 is provided on the side of the connecting ring 12 away from the hexahedron 2. There is a gap between the support ring 11 and the connecting ring 12. The support ring 11 is sleeved on the protective sleeve 4. An L-shaped plate 15 is installed on the annular side of the support ring 11. A support plate 13 connected and fixed to the connecting ring 12 is installed at the end of the L-shaped plate 15 away from the support ring 11. One side of the support ring 11 has a plurality of circular holes 19 that are aligned with the small holes 20 in an annular shape. The screw 16 passes through the channel formed by the circular holes 19 and the small holes 20. When installing the screw 16, it is passed through the support ring 11 and the connecting ring 12 in sequence, and then threaded to the hexahedron 2. Due to the restraining effect of the support ring 11, the head of the screw 16 will not contact the connecting ring 12. When the screw 16 cannot be disassembled normally due to corrosion or other reasons, the gap between the support ring 11 and the connecting ring 12 can be used to cut off the screw 16, thereby realizing the rapid disassembly of the hexahedron 2 and the protective sleeve 4. This design ensures a stable connection while providing a convenient way to handle screw 16 failures, effectively improving the feasibility and efficiency of maintenance operations.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thermocouple mounting structure, comprising a junction box (1), characterized in that: The junction box (1) is equipped with a protective sleeve (4) at the bottom. A hexahedron (2) is fitted on the protective sleeve (4). A hollow external threaded post (3) is installed on the lower surface of the hexahedron (2). The external threaded post (3) is fitted on the protective sleeve (4). A connecting ring (12) is provided on the side of the hexahedron (2) away from the external threaded post (3). The connecting ring (12) is fitted on the protective sleeve (4). The connecting ring (12) is connected to the junction box (1) through a connector. The connecting ring (12) is connected to the hexahedron (2) through multiple screws (16).

2. The thermocouple mounting structure according to claim 1, characterized in that: The connector includes a support plate (13), the support plate (13) is installed on the annular side of the connecting ring (12), a screw (5) is installed at the end of the support plate (13) away from the connecting ring (12), an ear plate (7) is installed on the outer surface of the junction box (1) and arranged parallel to the support plate (13), a through hole (18) is opened at the end of the ear plate (7) away from the junction box (1), the screw (5) passes through the through hole (18), and nuts (6) are provided on both sides of the through hole (18) along the length direction of the screw (5), and the nuts (6) are threadedly connected to the screw (5).

3. The thermocouple mounting structure according to claim 2, characterized in that: The screw (5) is threaded to an internal threaded sleeve (14) at one end near the support plate (13), and the internal threaded sleeve (14) is fixedly connected to the support plate (13).

4. The thermocouple mounting structure according to claim 1, characterized in that: The hexahedron (2) has multiple screw holes (17) equidistantly arranged on the side facing the connecting ring (12) in a ring. The connecting ring (12) has multiple small holes (20) equidistantly arranged on the side facing the hexahedron (2) in a ring, which are aligned with the screw holes (17). The screw (16) passes through the small holes (20) and is threaded into the screw hole (17).

5. The thermocouple mounting structure according to claim 4, characterized in that: The connecting ring (12) has a support ring (11) on the side away from the hexahedron (2). There is a gap between the support ring (11) and the connecting ring (12). The support ring (11) is sleeved on the protective sleeve (4). An L-shaped plate (15) is installed on the annular side of the support ring (11). A support plate (13) connected and fixed to the connecting ring (12) is installed at the end of the L-shaped plate (15) away from the support ring (11). A plurality of round holes (19) are equally spaced on one side of the support ring (11) and are aligned with the small hole (20). The screw (16) passes through the channel formed by the round hole (19) and the small hole (20).

6. The thermocouple mounting structure according to claim 1, characterized in that: The junction box (1) has a cover (8) threadedly connected to its open end. Two symmetrically arranged protrusions (9) are installed on the middle of the side of the cover (8) facing away from the junction box (1).

7. The thermocouple mounting structure according to claim 1, characterized in that: The junction box (1) is equipped with a conduit (10) on its outer surface. The conduit (10) and the junction box (1) are integrally formed.

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