Disassembling and assembling structure of temperature sensor

Abstract

The utility model discloses a dismounting and mounting structure of a temperature sensor, which belongs to the technical field of temperature sensors and comprises a mounting flange and a protective part inserted into a wedge-shaped hole arranged on the mounting flange, and the protective part is used for conveying the temperature sensor to the other side of the mounting flange. The dismounting and mounting structure of the temperature sensor further comprises a limiting ring fixed on the mounting flange and a locking sleeve installed outside the protection piece in a threaded mode, and the protection piece comprises a wedge-shaped mounting pipe inserted into the wedge-shaped hole. The tapered wedge-shaped mounting pipe and the wedge-shaped hole are matched with the locking sleeve, the sealing ring, the sealing ring, the annular sealing piece capable of elastically deforming and other structures for use, so that the wedge-shaped hole limits the upper limit of movement of the wedge-shaped mounting pipe, and the situation that the external threaded pipe is extruded and deformed due to excessive screwing of the locking sleeve is avoided; therefore, the sealing performance of the connection part and the connection firmness between the parts are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, and particularly relates to a disassembly and assembly structure of a temperature sensor. Background Technique

[0002] A temperature sensor refers to a sensor that can sense temperature and convert it into an available output signal. Temperature sensors are widely used in the industrial field to monitor the working temperatures of electromechanical equipment, heating furnaces, etc., facilitating people to accurately understand and control heating devices at any time. Temperature sensors are also used to monitor the temperatures of important components in some high-load operating mechanical equipment, so that people can accurately understand the operating status of the equipment in real time and improve operation safety.

[0003] The existing patent application number: 202223167332.8 discloses a temperature sensor that is easy to disassemble and assemble. This device is connected by a thread groove and a threaded column arranged in a reduced structure. During the firm connection, the head end of the threaded column can be deformed to clamp the outer sleeve, ensuring the stability of the temperature sensor installation. After the outer sleeve is inserted into the plunger, the surfaces of the inner sleeve and the outer sleeve can be fitted and in contact with the inner sealing ring at the same time to ensure the sealing performance of the connecting flange. In the above existing technology, when assembling the fixed sleeve and the threaded column, by using the cooperation between the thread groove arranged in the fixed sleeve and the strip groove fixed outside the threaded column, the deformation degree of the threaded column is proportional to the screwing force of the fixed sleeve. It is difficult to accurately control the force of screwing the fixed sleeve, which is likely to squeeze and break the outer sleeve or result in poor sealing effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a disassembly and assembly structure of a temperature sensor to solve the problem that it is difficult to accurately control the force of screwing the fixed sleeve, which is likely to squeeze and break the outer sleeve or result in poor sealing effect as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A disassembly and assembly structure of a temperature sensor provided by the utility model includes an installation flange and a protective part inserted into a wedge-shaped hole provided on the installation flange. The protective part is used to send the temperature sensor to the other side of the installation flange. The disassembly and assembly structure of the temperature sensor further includes:

[0007] A limit ring fixed on the installation flange.

[0008] A locking sleeve threadedly installed outside the protective part.

[0009] The protective part includes:

[0010] A wedge-shaped installation tube inserted into the wedge-shaped hole.

[0011] An external threaded pipe passing through the wedge-shaped hole, and the external threaded pipe is fixed to the bottom end of the wedge-shaped mounting pipe.

[0012] The disassembly and assembly structure of the temperature sensor further includes:

[0013] A sealing cavity provided at the top of the locking sleeve, one end of the external threaded pipe passes through the sealing cavity, and one end of the external threaded pipe is inserted and connected with an internal threaded hole provided in the sealing cavity.

[0014] A sealing ring sleeved with an annular sealing groove provided on the end face of the locking sleeve, and the sealing ring is located between the end face of the locking sleeve and the mounting flange.

[0015] Further, the disassembly and assembly structure of the temperature sensor further includes:

[0016] A sealing ring fixedly sleeved on the inner wall of the sealing cavity, and an arc-shaped inclined surface is provided at the bottom of the sealing ring.

[0017] An annular sealing piece fixedly sleeved on the external threaded pipe, and when the locking sleeve is installed, the annular sealing piece is in close contact with the arc-shaped inclined surface.

[0018] Further, the outer arc surface of the sealing ring is in close contact with the inner arc surface of the limiting ring, and the thickness of the sealing ring is greater than the depth of the annular sealing groove.

[0019] Further, the thread on the outside of the external threaded pipe meshes with the thread inside the internal threaded hole, and the bottom end of the external threaded pipe passes through the sealing cavity and the internal threaded hole in sequence.

[0020] Further, the shapes of the wedge-shaped hole and the wedge-shaped mounting pipe are both conical, and the opening on the wedge-shaped hole is larger at the top and smaller at the bottom.

[0021] Further, the protective member further includes:

[0022] A bent pipe fixed to the top end of the wedge-shaped mounting pipe.

[0023] A protective pipe fixedly sleeved inside the bent pipe, and the bottom end of the protective pipe passes through the inside of the wedge-shaped mounting pipe and the external threaded pipe in sequence.

[0024] Further, the outer diameter of the annular sealing piece is greater than or equal to the inner diameter of the arc-shaped inclined surface, and the outer diameter of the annular sealing piece is smaller than the outer diameter of the sealing ring.

[0025] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0026] 1. The utility model uses the cooperation of structures such as a wedge-shaped installation pipe and a wedge-shaped hole with a conical design, a locking sleeve and a sealing ring, a sealing ring and an elastically deformable annular sealing piece, etc. Through the threaded connection between the locking sleeve and the external threaded pipe, the extrusion force between the components can be increased, and through the limitation of the movement upper limit of the wedge-shaped installation pipe by the wedge-shaped hole, it is avoided that the locking sleeve is over-tightened and the external threaded pipe is extruded and deformed, resulting in the rupture of the protective pipe inside. It can not only improve the sealing performance of the connection, but also improve the connection firmness between the components;

[0027] 2. Through the threaded connection between the locking sleeve and the external threaded pipe, during assembly, only by turning the locking sleeve, the torque of turning the locking sleeve can be converted into the axial tension of the locking sleeve, pulling the protective part into the wedge-shaped hole, making the tight fit between the wedge-shaped installation pipe and the wedge-shaped hole, the locking sleeve and the sealing ring, and the sealing ring and the elastically deformable annular sealing piece. Through one tightening and installation action, the sealing of three joints is realized, achieving multiple benefits and improving the installation efficiency and sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the partial front view of the utility model;

[0029] Figure 2 is the partial front sectional view of the utility model;

[0030] Figure 3 is Figure 2 the enlarged view of part A in

[0031] Figure 4 is Figure 2 the enlarged view of part B in

[0032] In the figure: 1. mounting flange; 2. wedge-shaped hole; 3. protective part; 31. wedge-shaped installation pipe; 32. external threaded pipe; 33. elbow pipe; 34. protective pipe; 4. connecting flange; 5. limiting ring; 6. locking sleeve; 7. internal threaded hole; 8. sealing cavity; 9. annular sealing piece; 10. sealing ring; 11. annular sealing groove; 12. sealing ring; 13. arc-shaped inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application.

[0034] As Figures 1 to 4 shown, a disassembly and assembly structure of a temperature sensor includes a mounting flange 1 and a protective part 3 inserted into a wedge-shaped hole 2 provided on the mounting flange 1. The protective part 3 is used to send the temperature sensor to the other side of the mounting flange 1. The disassembly and assembly structure of the temperature sensor further includes:

[0035] The limit ring 5 fixed on the mounting flange 1.

[0036] The locking sleeve 6 threadedly mounted on the outside of the protective part 3.

[0037] The protective part 3 includes:

[0038] The wedge-shaped mounting tube 31 inserted into the wedge-shaped hole 2.

[0039] The external thread tube 32 passing through the wedge-shaped hole 2, and the external thread tube 32 is fixed at the bottom end of the wedge-shaped mounting tube 31.

[0040] The disassembly and assembly structure of the temperature sensor further includes:

[0041] The sealing cavity 8 provided at the top of the locking sleeve 6, one end of the external thread tube 32 passes through the sealing cavity 8, and one end of the external thread tube 32 is inserted and connected with the internal thread hole 7 provided in the sealing cavity 8.

[0042] The sealing ring 10 sleeved with the annular sealing groove 11 provided on the end face of the locking sleeve 6, and the sealing ring 10 is located between the end face of the locking sleeve 6 and the mounting flange 1.

[0043] During installation, first pass the end of the external thread tube 32 far from the wedge-shaped mounting tube 31 through the wedge-shaped hole 2 and the limit ring 5 in sequence until the external thread tube 32 completely passes through the wedge-shaped hole 2 and makes the wedge-shaped mounting tube 31 inserted into the wedge-shaped hole 2. Then, put the sealing ring 10 into the inside of the limit ring 5. Next, sleeve the sealing cavity 8 on the end face of the locking sleeve 6 from the end of the external thread tube 32 far from the wedge-shaped mounting tube 31, and make the end of the external thread tube 32 far from the wedge-shaped mounting tube 31 pass through the sealing cavity 8 and the internal thread hole 7 in sequence. By screwing the locking sleeve 6, the thread on its outside is engaged with the thread on the inner wall of the internal thread hole 7 until the annular sealing groove 11 on the end face of the locking sleeve 6 is sleeved outside the sealing ring 10, and both sides of the sealing ring 10 are tightly abutted against the opposite faces of the mounting flange 1 and the annular sealing groove 11 respectively, then the preliminary installation can be completed and the sealing between the mounting flange 1 and the locking sleeve 6 can be realized. During the tightening process of the locking sleeve 6, the outer edge of the annular sealing piece 9 is tightly abutted against the arc-shaped inclined surface 13 on the sealing ring 12 under the action of the extrusion force during the tightening of the locking sleeve 6, and the outer edge of the annular sealing piece 9 undergoes elastic deformation, further improving the sealing degree between the mounting flange 1 and the locking sleeve 6.

[0044] In this embodiment, the disassembly and assembly structure of the temperature sensor further includes:

[0045] The sealing ring 12 fixedly sleeved on the inner wall of the sealing cavity 8, and an arc-shaped inclined surface 13 is provided at the bottom of the sealing ring 12.

[0046] The annular sealing piece 9 fixedly sleeved on the external thread pipe 32 is in close contact with the arc-shaped inclined surface 13 when the locking sleeve 6 is installed. The outer diameter of the annular sealing piece 9 is greater than or equal to the inner diameter of the arc-shaped inclined surface 13, and the outer diameter of the annular sealing piece 9 is less than the outer diameter of the sealing ring 12.

[0047] With such a design, during the tightening process of the locking sleeve 6, the outer edge of the annular sealing piece 9 is in close contact with the arc-shaped inclined surface 13 on the sealing ring 12 under the action of the extrusion force during the tightening of the locking sleeve 6, and the outer edge of the annular sealing piece 9 undergoes elastic deformation, improving the sealing degree between the mounting flange 1 and the locking sleeve 6.

[0048] In this embodiment, the outer arc surface of the sealing ring 10 is in close contact with the inner arc surface of the limiting ring 5, and the thickness of the sealing ring 10 is greater than the depth of the annular sealing groove 11. With such a design, during the tightening process of the locking sleeve 6, the sealing ring 10 is tightly clamped between the boundaries of the mounting flange 1 and the locking sleeve 6, making the sealing performance of the sealing ring 10 proportional to the tightening degree of the locking sleeve 6. When the locking sleeve 6 cannot be turned, the sealing performance of the sealing ring 10 is in the best state.

[0049] In this embodiment, the thread on the outside of the external thread pipe 32 meshes with the thread inside the internal thread hole 7, and the bottom end of the external thread pipe 32 sequentially passes through the sealing cavity 8 and the internal thread hole 7. With such a design, during the tightening process of the locking sleeve 6, the arc-shaped inclined surface 13 on the sealing ring 12 is in close contact with the surface of the annular sealing piece 9, improving the sealing degree between the sealing cavity 8 and the external thread pipe 32, and further improving the sealing degree between the mounting flange 1 and the locking sleeve 6.

[0050] In this embodiment, the shapes of the wedge-shaped hole 2 and the wedge-shaped mounting pipe 31 are both conical, and the opening on the wedge-shaped hole 2 is larger at the top and smaller at the bottom. During installation, one end of the external thread pipe 32 is inserted from the opening with a larger inner diameter on the wedge-shaped hole 2. With such an installation, the outer wall of the wedge-shaped mounting pipe 31 can be in close contact with the inner wall of the wedge-shaped hole 2, improving the sealing performance between the contact surfaces of the two, and also avoiding the wedge-shaped mounting pipe 31 passing through the wedge-shaped hole 2 excessively, which affects the installation firmness and stability.

[0051] In this embodiment, the protective member 3 further includes:

[0052] The elbow pipe 33 fixed to the top end of the wedge-shaped mounting pipe 31, and a connecting flange 4 is fixedly provided at one end of the elbow pipe 33. The connecting flange 4 is used for fixedly connecting with a temperature detector, so as to restrict the circumferential degree of freedom of the protective member 3.

[0053] The protective tube 34 is fixedly sleeved inside the elbow pipe 33. The bottom end of the protective tube 34 sequentially passes through the inside of the wedge-shaped installation tube 31 and the external thread tube 32. After the protective member 3 is installed, the temperature sensor can be inserted into the protective tube 34. On the premise of ensuring the sealing between the mounting flange 1 and other components, the temperature sensor is transmitted from one side of the mounting flange 1 to the other side of the mounting flange 1 through the protective tube 34, avoiding the heat leakage from the space to be measured to the external environment and affecting the operation of the external electronic components.

[0054] The above are only the preferred embodiments of the present invention, and the parts not described in the present invention can be implemented by adopting or referring to the existing technologies. Of course, the above description is not a limitation to the present invention, and the present invention is not limited to the above examples. The changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. A temperature sensor disassembly and assembly structure, comprising a mounting flange (1) and a protective member (3) plugged into a wedge-shaped hole (2) provided on the mounting flange (1), wherein the protective member (3) is used to deliver the temperature sensor to the other side of the mounting flange (1), characterized in that: The disassembly and assembly structure of the temperature sensor also includes: A limiting ring (5) fixed on the mounting flange (1); A locking sleeve (6) threadedly mounted on the outside of the protective member (3); The protective element (3) comprises: A wedge-shaped mounting tube (31) inserted into the wedge-shaped hole (2); An externally threaded tube (32) passing through the wedge-shaped hole (2), wherein the externally threaded tube (32) is fixed to the bottom end of the wedge-shaped mounting tube (31); The disassembly and assembly structure of the temperature sensor also includes: A sealing cavity (8) is provided at the top of the locking sleeve (6), one end of the externally threaded tube (32) passes through the sealing cavity (8), and one end of the externally threaded tube (32) is connected to the internally threaded hole (7) provided in the sealing cavity (8); A sealing ring (10) is sleeved with an annular sealing groove (11) provided on the end surface of the locking sleeve (6); the sealing ring (10) is located between the end surface of the locking sleeve (6) and the mounting flange (1).

2. The disassembly structure of the temperature sensor according to claim 1, characterized in that: The disassembly and assembly structure of the temperature sensor also includes: A sealing ring (12) is fixedly sleeved on the inner wall of the sealing cavity (8), and a curved inclined surface (13) is provided at the bottom of the sealing ring (12); The annular sealing sheet (9) is fixedly sleeved on the externally threaded tube (32), so that when the locking sleeve (6) is installed, the annular sealing sheet (9) is in close contact with the arc-shaped inclined surface (13).

3. The disassembly structure of the temperature sensor according to claim 2, characterized in that: The outer arc surface of the sealing ring (10) is in close contact with the inner arc surface of the limiting ring (5), and the thickness of the sealing ring (10) is greater than the depth of the annular sealing groove (11).

4. The disassembly structure of the temperature sensor according to claim 3, characterized in that: The threads on the outside of the externally threaded tube (32) mesh with the threads on the inside of the internally threaded hole (7), and the bottom end of the externally threaded tube (32) passes through the sealing cavity (8) and the internally threaded hole (7) in sequence.

5. The disassembly structure of the temperature sensor according to claim 4, characterized in that: The wedge-shaped hole (2) and the wedge-shaped mounting tube (31) are both conical in shape, and the opening on the wedge-shaped hole (2) is larger at the top and smaller at the bottom.

6. The disassembly structure of the temperature sensor according to claim 5, characterized in that: The protective element (3) further comprises: A curved pipe (33) fixed to the top end of the wedge-shaped mounting pipe (31); A protective tube (34) is fixedly sleeved inside the curved tube (33), and the bottom end of the protective tube (34) passes through the inside of the wedge-shaped installation tube (31) and the externally threaded tube (32) in sequence.

7. The disassembly structure of the temperature sensor according to claim 2, characterized in that: The outer diameter of the annular sealing sheet (9) is greater than or equal to the inner diameter of the arc-shaped inclined surface (13), and the outer diameter of the annular sealing sheet (9) is smaller than the outer diameter of the sealing ring (12).

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