Rapid thermocouple fixing device

Abstract

The utility model provides a rapid thermocouple fixing device, and belongs to the technical field of thermocouples. Comprising a thermocouple and a tested device, a mounting seat is arranged at a corresponding mounting hole of the tested device, the thermocouple is arranged at the mounting seat, the thermocouple mounting component comprises a connecting seat fixed on the outer wall of the thermocouple, a connecting sleeve is arranged on the periphery of the connecting seat, and the connecting sleeve is sleeved on the connecting seat. Clamping holes are formed in the connecting sleeve in pairs, and locking pieces capable of being matched with the corresponding clamping holes are arranged on the two sides of the mounting base respectively. According to the invention, the installation steps of the thermocouple become simple, the installation efficiency is higher, the influence of temperature change and mechanical vibration on the installation stability of the thermocouple can be reduced, and the installation of the thermocouple is firmer.

Description

Technical Field

[0001] The present application relates to the field of thermocouples, and in particular to a thermocouple quick fixing device. Background Art

[0002] Thermocouple is a temperature measuring element commonly used in temperature measuring instruments.

[0003] When installing thermocouples, there are usually two installation methods: flange type and nut type. For the single nut type installation method, the temperature change in the working environment of the thermocouple will cause the fixing nut to loosen, and the vibration and impact caused by the operation of the measured equipment or other reasons may also cause the fixing nut to loosen; compared with the nut type installation method, the flange type installation method uses more screws and nuts for fixing, making the thermocouple installation more stable, but this undoubtedly increases the installation time and difficulty of the thermocouple. Utility Model Content

[0004] In order to make up for the above shortcomings, the present application provides a thermocouple quick fixing device, which not only simplifies the thermocouple installation steps and improves the installation efficiency, but also reduces the impact of temperature changes and mechanical vibrations on the thermocouple installation stability, making the thermocouple installation more secure.

[0005] The present application provides a thermocouple fast fixing device, comprising a thermocouple and a device under test, wherein a mounting seat is provided at a corresponding mounting hole of the device under test, the thermocouple is arranged at the mounting seat, and further comprising a thermocouple mounting member:

[0006] The thermocouple mounting component comprises a connection seat fixed on the outer wall of the thermocouple, a connection sleeve is arranged on the periphery of the connection seat, a pair of snap-in holes are opened on the connection sleeve, and locking pieces which can be matched with the corresponding snap-in holes are respectively arranged on both sides of the mounting seat.

[0007] Preferably, the inner diameter of the mounting seat is greater than or equal to the diameter of the corresponding mounting hole of the device under test, and the longitudinal section of the mounting seat is T-shaped, and the locking member is located on the outer surface of the lower section of the mounting seat.

[0008] Preferably, the inner diameter of the upper section of the connecting sleeve is smaller than the inner diameter of the lower section thereof, and a sealing rubber ring is embedded in the inner wall of the upper section of the connecting sleeve and is movably fitted tightly against the upper outer wall of the mounting seat.

[0009] Preferably, a sealing rubber pad is bonded and pressed against the bottom of the connecting seat and the sealing rubber pad is also tightly attached to the outer wall of the thermocouple.

[0010] Preferably, the locking member includes a guide sleeve fixed to the outer wall of the thermocouple, a clamping rod is movably inserted inside the guide sleeve, a spring is fixed between the inner end of the guide sleeve and the inner end of the clamping rod, a slide rail is provided on the inner wall of the guide sleeve, and a slider adapted to the slide rail is provided at the inner end of the clamping rod.

[0011] Preferably, the outer ends of the guide sleeve and the clamping rod are both designed to be arc-shaped, the curvature of which is consistent with the curvature of the inner wall of the connecting sleeve, and the clamping rod can be completely inserted into the guide sleeve.

[0012] Beneficial effect: The present application provides a thermocouple quick fixing device, firstly, the two locking pieces are pressed in opposite directions to shorten them to the shortest, and then the thermocouple is inserted into the mounting hole corresponding to the device under test, at which time the connecting sleeve moves downward and covers the outside of the two locking pieces, and when the two locking pieces correspond to the corresponding snap-in holes on the connecting sleeve, the locking pieces can be automatically snapped into the snap-in holes, and Figure 1 As shown, it extends outward for a certain distance, thereby improving the installation efficiency of the thermocouple. After installation, the thermocouple will not be longitudinally displaced and loosened due to temperature changes and mechanical vibrations as in previous installation methods, and the installation is more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic structural diagram of a thermocouple quick fixing device provided in an embodiment of the present application;

[0015] Figure 2 A schematic cross-sectional structure diagram of a thermocouple quick fixing device provided in an embodiment of the present application;

[0016] Figure 3 A structural schematic diagram of the connection relationship between the mounting base and the thermocouple mounting component provided in an embodiment of the present application;

[0017] Figure 4 A schematic diagram of the connecting sleeve structure provided in an embodiment of the present application;

[0018] Figure 5 A schematic diagram of the locking member structure provided in an embodiment of the present application.

[0019] In the figure: 1-thermocouple; 2-tested device; 3-mounting seat; 4-thermocouple mounting member; 41-connecting seat; 42-connecting sleeve; 421-clamping hole; 43-locking piece; 431-guide sleeve; 4311-slide rail; 432-clamping rod; 433-spring; 434-slider; 44-sealing rubber pad; 45-sealing rubber ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0021] See also Figure 1-Figure 4 The present application provides a thermocouple fast fixing device, including a thermocouple 1 and a device under test 2, a mounting seat 3 is provided at a corresponding mounting hole of the device under test 2, the thermocouple 1 is arranged at the mounting seat 3, and also includes a thermocouple mounting component 4:

[0022] The thermocouple mounting component 4 includes a connection seat 41 fixed to the outer wall of the thermocouple 1, a connection sleeve 42 is provided on the periphery of the connection seat 41, and a pair of snap-in holes 421 are opened on the connection sleeve 42. Locking pieces 43 that can be adapted to the corresponding snap-in holes 421 are respectively provided on both sides of the mounting seat 3.

[0023] In this embodiment, the two locking members 43 are first pressed in opposite directions to shorten them to the shortest, and then the thermocouple 1 is inserted into the mounting hole corresponding to the device under test 2. At this time, the connecting sleeve 42 moves downward and covers the outside of the two locking members 43. When the two locking members 43 correspond to the corresponding snap-in holes 421 on the connecting sleeve 42, the locking members 43 can be automatically snapped into the snap-in holes 421, and as shown in FIG. Figure 1 As shown, it extends outward for a certain distance, thereby improving the installation efficiency of the thermocouple 1. After installation, the thermocouple 1 will not be longitudinally displaced or loosened due to temperature changes and mechanical vibrations as in previous installation methods, and the installation is more secure.

[0024] It should also be noted that when the thermocouple 1 is manufactured, if the flange-type and nut-type installation structures are the same, during production and processing, the connection seat 41 in the thermocouple installation component 4 is welded and fixed to the outer wall of the thermocouple 1 in advance.

[0025] See also Figure 3-Figure 5 The inner diameter of the mounting seat 3 is greater than or equal to the diameter of the corresponding mounting hole of the device under test 2, and the longitudinal section of the mounting seat 3 is designed in a "T" shape, and the locking member 43 is located on the outer surface of the lower section of the mounting seat 3.

[0026] The inner diameter of the upper section of the connecting sleeve 42 is smaller than the inner diameter of the lower section thereof, and a sealing rubber ring 45 is embedded in the inner wall of the upper section of the connecting sleeve 42 and is movably attached to the upper outer wall of the mounting seat 3. The design of the sealing rubber ring 45 can increase the sealing effect of the connection between the connecting sleeve 42 and the mounting seat 3, and indirectly improve the accuracy of the temperature measurement of the thermocouple 1.

[0027] The locking member 43 includes a guide sleeve 431 fixed to the outer wall of the thermocouple 1, a clamping rod 432 is movably inserted inside the guide sleeve 431, a spring 433 is fixed between the inner end of the guide sleeve 431 and the inner end of the clamping rod 432, a slide rail 4311 is provided on the inner wall of the guide sleeve 431, and a slider 434 adapted to the slide rail 4311 is provided at the inner end of the clamping rod 432. Specifically, as Figure 3 As shown, one end of the guide sleeve 431 of the locking member 43 is connected to the outer wall of the lower section of the mounting base 3, and the outer end of the guide sleeve 431 contacts the inner wall of the connecting sleeve 42, which directly makes the designed length of the guide sleeve 431 longer, and indirectly makes the length of the clamping rod 432 longer. In this way, when the clamping rod 432 is inserted into the clamping hole 421, it can extend a distance toward the outer wall of the connecting sleeve 42, reducing the probability of it being easily detached from the clamping hole 421 due to mechanical vibration, thereby indirectly improving the firmness of the installation of the thermocouple 1.

[0028] See also Figure 3 The outer ends of the guide sleeve 431 and the clamping rod 432 are both designed in an arc shape, the curvature of which is consistent with the curvature of the inner wall of the connecting sleeve 42, and the clamping rod 432 can be fully inserted into the guide sleeve 431.

[0029] See also Figure 3 The bottom of the connection seat 41 is also adhered and pressed against a sealing rubber pad 44 on the upper surface of the mounting seat 3, and the sealing rubber pad 44 is also closely attached to the outer wall of the thermocouple 1. The design of the sealing rubber pad 44 can improve the sealing effect of the connection between the connection seat 41 and the mounting seat 3, and the sealing rubber pad 44 cooperates with the sealing rubber ring 45 to form a two-way sealing structure, which indirectly improves the accuracy of the temperature measurement of the thermocouple 1.

[0030] When using this application:

[0031] First, press the two clamping rods 432 toward the inner cavity of the guide sleeve 431 to compress the spring 433, and then insert the thermocouple 1 into the mounting hole corresponding to the device 2 under test. At this time, the connecting sleeve 42 moves downward and covers the outside of the two clamping rods 432. When the two clamping rods 432 correspond to the corresponding clamping holes 421 on the connecting sleeve 42, the spring 433 is reset, and the clamping rods 432 can be automatically clamped into the clamping holes 421, and Figure 1 As shown, it extends outward for a certain distance, thereby improving the installation efficiency of the thermocouple 1. After installation, the thermocouple 1 will not be longitudinally displaced or loosened due to temperature changes and mechanical vibrations as in previous installation methods, and the installation is more secure.

[0032] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A thermocouple quick fixing device, comprising a thermocouple (1) and a device under test (2), wherein a mounting seat (3) is provided at a corresponding mounting hole of the device under test (2), and the thermocouple (1) is arranged at the mounting seat (3), characterized in that: Also includes: Thermocouple mounting components (4) include a connection seat (41) fixed to the outer wall of the thermocouple (1), a connection sleeve (42) is provided on the periphery of the connection seat (41), the connection sleeve (42) is provided with a pair of snap-fit ​​holes (421), and locking pieces (43) that can be matched with the corresponding snap-fit ​​holes (421) are respectively provided on both sides of the mounting seat (3).

2. The thermocouple quick fixing device according to claim 1, characterized in that: The inner diameter of the mounting seat (3) is greater than or equal to the diameter of the corresponding mounting hole of the device under test (2), and the longitudinal cross-section of the mounting seat (3) is designed to be "T" shaped, and the locking member (43) is located on the outer surface of the lower section of the mounting seat (3).

3. The thermocouple quick fixing device according to claim 2, characterized in that: The inner diameter of the upper section of the connecting sleeve (42) is smaller than the inner diameter of the lower section thereof, and a sealing rubber ring (45) is embedded in the inner wall of the upper section of the connecting sleeve (42) and is movably fitted to the upper outer wall of the mounting seat (3).

4. The thermocouple quick fixing device according to claim 3, characterized in that: The bottom of the connection seat (41) is also bonded and pressed against a sealing rubber pad (44) on the upper surface of the mounting seat (3), and the sealing rubber pad (44) is also tightly attached to the outer wall of the thermocouple (1).

5. The thermocouple quick fixing device according to claim 4, characterized in that: The locking member (43) comprises a guide sleeve (431) fixed to the outer wall of the thermocouple (1), a clamping rod (432) being movably inserted inside the guide sleeve (431), a spring (433) being fixed between the inner end of the guide sleeve (431) and the inner end of the clamping rod (432), a slide rail (4311) being provided on the inner wall of the guide sleeve (431), and a slide block (434) matching the slide rail (4311) being provided at the inner end of the clamping rod (432).

6. The thermocouple quick fixing device according to claim 5, characterized in that: The outer ends of the guide sleeve (431) and the clamping rod (432) are both designed to be arc-shaped, and the curvature is consistent with the curvature of the inner wall of the connecting sleeve (42), and the clamping rod (432) can be completely inserted into the guide sleeve (431).

Images