Thermocouple verification device

Abstract

The utility model relates to a thermocouple verification device, and the device enables a sliding part to slide relative to a supporting frame through adjusting a positioning assembly, thereby adjusting the distance between an auxiliary assembly and a second positioning part, and enabling the distance between the auxiliary assembly and the second positioning part to be matched with the length of a thermocouple. After the sliding piece slides to the preset position, the sliding piece is fixed relative to the supporting frame by adjusting the positioning assembly, and then the distance between the auxiliary assembly and the second positioning piece is fixed, so that thermocouples with different lengths and sizes can be adapted conveniently.

Description

Technical Field

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

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments. The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. They are usually composed of main parts such as hot electrodes, insulating sleeve protection tubes and junction boxes, and are usually used in conjunction with display instruments, recording instruments and electronic regulators.

[0003] Existing thermocouples need to be inspected during production after assembly, and the inspection results are compared with actual values ​​to verify the accuracy of the thermocouple inspection results. However, existing verification devices have poor adaptability and are not suitable for the verification of thermocouples of different sizes. Utility Model Content

[0004] Based on this, it is necessary to provide a thermocouple calibration device to address the problem that the conventional calibration device for thermocouples has poor adaptability and cannot be used for the calibration of thermocouples of different sizes.

[0005] The present application provides a thermocouple calibration device, comprising:

[0006] Support frame;

[0007] A sliding member, slidably disposed on the support frame;

[0008] A positioning assembly, arranged on the sliding member, when in use, the positioning assembly is inserted into the support frame so that the position of the sliding member is fixed relative to the support frame;

[0009] an auxiliary component, disposed on the sliding member, for providing heat;

[0010] A first positioning member, fixedly connected to the auxiliary component;

[0011] The second positioning member is arranged on the support frame, the second positioning member is fixedly connected to the support frame, and the first positioning member and the second positioning member are arranged in a colinear manner.

[0012] The present application relates to a thermocouple calibration device, which adjusts the positioning component so that the sliding member can slide relative to the support frame, and then adjusts the distance between the auxiliary component and the second positioning member to help the distance between the auxiliary component and the second positioning member to match the length of the thermocouple. After the sliding member slides to a predetermined position, the positioning component is adjusted so that the sliding member is fixed relative to the support frame, and then the distance between the auxiliary component and the second positioning member is fixed, so as to facilitate the adaptation of thermocouples of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a thermocouple calibration device provided in one embodiment of the present application.

[0014] Figure 2 A schematic cross-sectional view of the connection between a sliding member and a support frame in a thermocouple calibration device provided in one embodiment of the present application.

[0015] Figure 3 A schematic cross-sectional view of the connection between the first driving member and the sliding member in a thermocouple calibration device provided in one embodiment of the present application.

[0016] Figure 4 for Figure 2 Enlarged view of point a in the middle.

[0017] Figure 5 for Figure 2 Enlarged view of point b in the middle.

[0018] Figure 6 for Figure 3 Enlarged view of point c in the middle.

[0019] Figure 7 for Figure 3 Enlarged view of point d in the middle.

[0020] Figure 8 A schematic structural diagram of a first locking member in a thermocouple calibration device provided in one embodiment of the present application.

[0021] Reference numerals:

[0022] 11, support frame; 111, limiting groove; 111a, first positioning groove; 111b, second positioning groove;

[0023] 12. Sliding member; 13. Positioning assembly; 131. First driving member; 131a. Threaded rod;

[0024] 131b, adapter plate; 131c, handle; 132, second driving member; 132a, receiving member;

[0025] 132b, first locking member; 132c, first driving rod; 132d, second locking member;

[0026] 132e, second driving rod; 133, first follower; 134, first spring; 135, second follower;

[0027] 136, second spring; 14, auxiliary component; 141, support member; 141a, detection hole;

[0028] 142, temperature equalizing member; 143, electric heating plate; 15, first positioning member; 151, first supporting rod;

[0029] 152, first limiting member; 16, second positioning member; 161, second support rod; 162, second limiting member; 17, limiting plate; 18, limiting shaft. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] like Figure 1 As shown, in one embodiment of the present application, the thermocouple calibration device includes a support frame 11, a sliding member 12, a positioning component 13, an auxiliary component 14, a first positioning member 15 and a second positioning member 16.

[0032] The sliding member 12 is slidably disposed on the supporting frame 11 .

[0033] The positioning assembly 13 is disposed on the sliding member 12. When in use, the positioning assembly 13 is inserted into the support frame 11 so that the position of the sliding member 12 is fixed relative to the support frame 11.

[0034] The auxiliary component 14 is disposed on the sliding member 12 and is used to provide heat.

[0035] The first positioning member 15 is fixedly connected to the auxiliary component 14 .

[0036] The second positioning member 16 is disposed on the support frame 11. The second positioning member 16 is fixedly connected to the support frame 11. The first positioning member 15 and the second positioning member 16 are disposed in a colinear manner.

[0037] Specifically, the sliding member 12 is slidably set on the support frame 11, the auxiliary component 14 is fixedly set on the sliding member 12, the first positioning member 15 is fixedly connected to the auxiliary component 14, the second positioning member 16 is fixedly connected to the support frame 11, and the positioning component 13 is set on the sliding member 12. By adjusting the positioning component 13, the relative position relationship between the sliding member 12 and the support frame 11 is fixed, thereby locking the position of the auxiliary component 14.

[0038] In this embodiment, the positioning component 13 is adjusted so that the sliding member 12 can slide relative to the support frame 11, and then the distance between the auxiliary component 14 and the second positioning member 16 is adjusted to help the distance between the auxiliary component 14 and the second positioning member 16 to match the length of the thermocouple. After the sliding member 12 slides to a predetermined position, the positioning component 13 is adjusted so that the sliding member 12 is fixed relative to the support frame 11, and then the distance between the auxiliary component 14 and the second positioning member 16 is fixed, so as to facilitate the adaptation of thermocouples of different lengths.

[0039] like Figure 3 As shown, in one embodiment of the present application, the positioning assembly 13 includes a first driving member 131 , a second driving member 132 , a first follower 133 , a first spring 134 , a second follower 135 and a second spring 136 .

[0040] The first driving member 131 is rotatably disposed on the sliding member 12 .

[0041] The second driving member 132 is disposed inside the sliding member 12. The middle portion of the second driving member 132 is threadedly connected to the first driving member 131. One end of the second driving member 132 is slidably connected to the sliding member 12. The other end of the second driving member 132 is also slidably connected to the sliding member 12.

[0042] The first follower 133 is disposed at one side of the second driving member 132. The first follower 133 is slidably connected to the sliding member 12. The first follower 133 is inserted into the support frame 11. The first follower 133 abuts against the second driving member 132.

[0043] The first spring 134 is disposed between the first follower 133 and the second driving member 132. One end of the first spring 134 is fixedly connected to the first follower 133. The other end of the first spring 134 is fixedly connected to the second driving member 132.

[0044] The second follower 135 is disposed at the other side of the second driving member 132. The second follower 135 is slidably connected to the sliding member 12. The second follower 135 is inserted into the supporting frame 11. The second follower 135 abuts against the second driving member 132.

[0045] The second spring 136 is disposed between the second follower 135 and the second driving member 132. One end of the second spring 136 is fixedly connected to the second follower 135. The other end of the second spring 136 is fixedly connected to the second driving member 132.

[0046] In this embodiment, the shape of the second driving member 132 is changed by rotating the first driving member 131, thereby restricting the first follower member 133 and the second follower member 135 to different degrees. When the two ends of the second driving member 132 respectively abut against the first follower member 133 and the second follower member 135, the sliding member 12 is fixed relative to the support frame 11. When the two ends of the second driving member 132 are respectively at a preset distance from the first follower member 133 and the second follower member 135, the sliding member 12 can be pushed to slide on the support frame 11.

[0047] like Figure 4 As shown, in one embodiment of the present application, the first driving member 131 includes a threaded rod 131a, an adapter plate 131b and a handle 131c.

[0048] The threaded rod 131 a is rotatably disposed on the sliding member 12 .

[0049] The adapter plate 131b is disposed on the top of the sliding member 12. The top of the threaded rod 131a is fixedly connected to the middle of the adapter plate 131b.

[0050] The handle 131c is disposed on the top of the adapter plate 131b. The handle 131c is rotatably disposed on the adapter plate 131b. The handle 131c is disposed close to the outer circumference of the adapter plate 131b.

[0051] In this embodiment, the handle 131c is held to drive the adapter plate 131b to rotate, thereby driving the threaded rod 131a to rotate, and the rotation of the threaded rod 131a drives the second driving member 132 to perform action conversion.

[0052] like Figure 6 and Figure 7 As shown, in one embodiment of the present application, the second driving member 132 includes a receiving member 132a, a first locking member 132b, a first driving rod 132c, a second locking member 132d and a second driving rod 132e.

[0053] The receiving member 132a is slidably disposed in the sliding member 12. The receiving member 132a is threadedly connected to the threaded rod 131a.

[0054] The first locking member 132 b is slidably disposed in the sliding member 12 . The first locking member 132 b is disposed at one side of the receiving member 132 a . The first locking member 132 b abuts against the first follower 133 .

[0055] The first driving rod 132c is disposed between the first locking member 132b and the receiving member 132a. One end of the first driving rod 132c is rotatably connected to the first locking member 132b. The other end of the first driving rod 132c is rotatably connected to the receiving member 132a.

[0056] The second locking member 132d is slidably disposed in the sliding member 12. The second locking member 132d is disposed at the other side of the receiving member 132a. The second locking member 132d abuts against the second follower 135.

[0057] The second driving rod 132e is disposed between the second locking member 132d and the receiving member 132a. One end of the second driving rod 132e is rotatably connected to the second locking member 132d. The other end of the second driving rod 132e is rotatably connected to the receiving member 132a.

[0058] In this embodiment, the threaded rod 131a is rotated to drive the receiving member 132a to move on the sliding member 12. As the sliding member 12 moves, the first driving rod 132c and the second driving rod 132e are synchronously driven to rotate. The rotation of the first driving rod 132c will drive the first locking member 132b to move to control the locking relationship between the first locking member 132b and the first follower 133. The rotation of the second driving rod 132e will drive the second locking member 132d to move to control the locking relationship between the second locking member 132d and the second follower 135.

[0059] like Figure 6 and Figure 8 As shown, in one embodiment of the present application, the structure of the first locking member 132b is the same as the structure of the second locking member 132d. The first locking member 132b includes a limiting plate 17 and a limiting shaft 18.

[0060] The limit plate 17 is slidably disposed in the sliding member 12 . One end of the limit plate 17 is rotatably connected to the first driving rod 132 c . The other end of the limit plate 17 is fixedly connected to the first spring 134 .

[0061] The limiting shaft 18 is disposed between the limiting plate 17 and the first follower 133. One end of the limiting shaft 18 is fixedly connected to the limiting plate 17. One end of the limiting shaft 18 abuts against the first follower 133. The first spring 134 is sleeved on the limiting shaft 18.

[0062] In this embodiment, the movement of the limit plate 17 is used to drive the limit shaft 18 to move, thereby controlling the distance between the limit shaft 18 and the first follower 133. When the distance between the limit shaft 18 and the first follower 133 is less than a preset value, the sliding member 12 is fixed relative to the support frame 11. When the distance between the limit shaft 18 and the first follower 133 is greater than the preset value, the sliding member 12 can slide relative to the support frame 11.

[0063] like Figure 2 As shown, in one embodiment of the present application, a limiting groove 111 is provided on the support frame 11 , and the sliding member 12 is slidably connected to the limiting groove 111 .

[0064] like Figure 2 and Figure 3 As shown, in one embodiment of the present application, a plurality of first positioning grooves 111a are formed on a side wall of the limiting groove 111. The first positioning grooves 111a are arranged at equal intervals along the sliding direction of the sliding member 12. The first follower 133 is inserted into one of the first positioning grooves 111a.

[0065] A plurality of second positioning grooves 111b are formed on the other side wall of the limiting groove 111. The second positioning grooves 111b are arranged at equal intervals along the sliding direction of the sliding member 12. The second follower 135 is inserted into one of the second positioning grooves 111b.

[0066] In this embodiment, the movement of the sliding member 12 on the supporting frame 11 is restricted by restricting the movement of the first follower 133 relative to the first positioning groove 111 a and restricting the movement of the second follower 135 relative to the second positioning groove 111 b .

[0067] like Figure 2 and Figure 5 As shown, in one embodiment of the present application, the auxiliary component 14 includes a support member 141 , a temperature equalizing member 142 and a heating plate 143 .

[0068] The support member 141 is disposed on the top of the sliding member 12. The support member 141 is fixedly connected to the sliding member 12. The support member 141 is provided with a detection hole 141a.

[0069] The temperature-averaging member 142 is configured to be cylindrical and is disposed in the detection hole 141 a.

[0070] The electric heater 143 is disposed in the detection hole 141 a. The electric heater 143 is sleeved on the temperature equalizing member 142. The side wall of the electric heater 143 is at least partially fixedly connected to the inner wall of the supporting member 141.

[0071] In this embodiment, the heat generated by the heating plate 143 is transferred to the temperature equalizing member 142 by starting the heating plate 143, and then the detection part of the thermocouple is inserted into the detection hole 141a, so that the temperature in the detection hole 141a is stabilized and the reading of the thermocouple is stable for easy verification.

[0072] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, the first positioning member 15 includes a first support rod 151 and a first limiting member 152 .

[0073] The first support rod 151 is fixedly connected to the support member 141 .

[0074] The first stopper 152 is disposed near the detection hole 141a. The first stopper 152 is fixedly connected to the support rod. The first stopper 152 is disposed in an arc shape. The center of the first stopper 152 is colinear with the center of the detection hole 141a.

[0075] In this embodiment, the first limiting member 152 is used to limit the moving direction of the thermocouple when it is inserted into the detection hole 141 a, and at the same time, the stability of the position of the thermocouple during calibration is improved.

[0076] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, the first positioning member 15 includes a second support rod 161 and a second limiting member 162 .

[0077] The second support rod 161 is fixedly connected to the support frame 11 .

[0078] The second stopper 162 is disposed on the second support rod 161. The second stopper 162 is fixedly connected to the second support rod 161. The second stopper 162 is arranged in an arc shape. The center of the second stopper 162 is collinear with the center of the detection hole 141a and the center of the first stopper 152.

[0079] The opening direction of the first limiting member 152 is opposite to the opening direction of the second limiting member 162 .

[0080] In this embodiment, the opening direction of the first limit member 152 is consistent with the direction of gravity, and the opening direction of the second limit member 162 is opposite to the opening direction of the first limit member 152, so that the thermocouple with uneven mass will be stuck between the first limit member 152 and the second limit member 162 because its mass is too large near the second limit member 162, thereby improving its stability during calibration.

[0081] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A thermocouple calibration device, characterized in that: The thermocouple calibration device comprises: Support frame; A sliding member, slidably disposed on the support frame; A positioning assembly, arranged on the sliding member, when in use, the positioning assembly is inserted into the support frame so that the position of the sliding member is fixed relative to the support frame; an auxiliary component, disposed on the sliding member, for providing heat; A first positioning member, fixedly connected to the auxiliary component; The second positioning member is arranged on the support frame, the second positioning member is fixedly connected to the support frame, and the first positioning member and the second positioning member are arranged in a colinear manner.

2. The thermocouple calibration device according to claim 1, characterized in that: The positioning component comprises: A first driving member, rotatably disposed on the sliding member; A second driving member is disposed inside the sliding member, a middle portion of the second driving member is threadedly connected to the first driving member, one end of the second driving member is slidably connected to the sliding member, and the other end of the second driving member is also slidably connected to the sliding member; A first follower is disposed on one side of the second driving member, the first follower is slidably connected to the sliding member, the first follower is inserted into the supporting frame, and the first follower abuts against the second driving member; A first spring is disposed between the first follower and the second driving member, one end of the first spring is fixedly connected to the first follower, and the other end of the first spring is fixedly connected to the second driving member; A second follower is disposed on the other side of the second driving member, the second follower is slidably connected to the sliding member, the second follower is inserted into the supporting frame, and the second follower abuts against the second driving member. The second spring is arranged between the second follower and the second driving member, one end of the second spring is fixedly connected to the second follower, and the other end of the second spring is fixedly connected to the second driving member.

3. The thermocouple calibration device according to claim 2, characterized in that: The first driving member comprises: A threaded rod, rotatably disposed on the sliding member; An adapter plate is arranged on the top of the sliding member, and the top of the threaded rod is fixedly connected to the middle of the adapter plate; A handle is arranged on the top of the adapter plate. The handle is rotatably arranged on the adapter plate and is arranged close to the outer circumference of the adapter plate.

4. The thermocouple calibration device according to claim 3, characterized in that: The second driving member comprises: A receiving member, slidably disposed in the sliding member, the receiving member being threadedly connected to the threaded rod; A first locking member is slidably disposed in the sliding member, the first locking member is disposed on one side of the receiving member, and the first locking member abuts against the first follower member; A first driving rod is disposed between the first locking member and the receiving member, one end of the first driving rod is rotatably connected to the first locking member, and the other end of the first driving rod is rotatably connected to the receiving member; A second locking member, slidably disposed in the sliding member, the second locking member is disposed on the other side of the receiving member, and the second locking member abuts against the second follower member; The second driving rod is arranged between the second locking member and the receiving member, one end of the second driving rod is rotatably connected to the second locking member, and the other end of the second driving rod is rotatably connected to the receiving member.

5. The thermocouple calibration device according to claim 4, characterized in that: The structure of the first locking member is the same as that of the second locking member, and the first locking member comprises: a limit plate, slidably disposed in the sliding member, one end of the limit plate being rotatably connected to the first driving rod, and the other end of the limit plate being fixedly connected to the first spring; A limiting shaft is arranged between the limiting plate and the first follower, one end of the limiting shaft is fixedly connected to the limiting plate, one end of the limiting shaft abuts against the first follower, and the first spring is sleeved on the limiting shaft.

6. The thermocouple calibration device according to claim 5, characterized in that: The support frame is provided with a limiting groove, and the sliding member is slidably connected to the limiting groove.

7. The thermocouple calibration device according to claim 6, characterized in that: A plurality of first positioning grooves are formed on one side wall of the limiting groove, the first positioning grooves are arranged at equal intervals along the sliding direction of the sliding member, and the first follower is inserted into one of the first positioning grooves; A plurality of second positioning grooves are formed on the other side wall of the limiting groove. The second positioning grooves are arranged at equal intervals along the sliding direction of the sliding member, and the second follower is inserted into one of the second positioning grooves.

8. The thermocouple calibration device according to claim 7, characterized in that: The auxiliary components include: A support member is arranged on the top of the sliding member, the support member is fixedly connected to the sliding member, and a detection hole is opened on the support member; A temperature-averaging component, which is configured to be cylindrical and is disposed in the detection hole; The electric heater is arranged in the detection hole, the electric heater is sleeved on the temperature equalizing member, and the side wall of the electric heater is at least partially fixedly connected to the inner wall of the supporting member.

9. The thermocouple calibration device according to claim 8, characterized in that: The first positioning member comprises: A first support rod, fixedly connected to the support member; The first limiter is arranged near the detection hole, the first limiter is fixedly connected to the support rod, the first limiter is arranged in an arc shape, and the center of the first limiter is colinear with the center of the detection hole.

10. The thermocouple calibration device according to claim 9, characterized in that: The second positioning member comprises: A second support rod, fixedly connected to the support frame; A second limiter is arranged on the second support rod, the second limiter is fixedly connected to the second support rod, the second limiter is arranged in an arc shape, and the center of the second limiter is collinear with the center of the detection hole and the center of the first limiter; An opening direction of the first limiting member is opposite to an opening direction of the second limiting member.

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