Heat flow sensor

Abstract

The utility model relates to a heat flow sensor which comprises a bottom plate, mounting plates and a main box body, the bottom plate is arranged on the two mounting plates provided with mounting holes, the main box body is mounted in the middle of the upper surface of the bottom plate, an indicator light is embedded in the front surface of the main box body, and a pressing rod is inserted in the middle of the upper surface of the main box body. A pressing block is arranged at the top end of the pressing rod, a first spring is connected between the pressing block and the main box body, a heat conduction rod is connected to the bottom end, penetrating out of the bottom plate, of the pressing rod, a thermosensitive source material block is arranged at the bottom end of the heat conduction rod, an insertion cylinder penetrates through the middle of the upper face of the mounting plate, and clamping grooves are formed in the four side faces of the insertion cylinder correspondingly. The inserting blocks penetrate through the two sides of the upper face of the bottom plate, the clamping blocks penetrate through the four side faces of the inserting blocks, the inserting blocks on the bottom plate are directly inserted into the inserting barrels, the clamping blocks are automatically pushed to be inserted into the clamping grooves to be clamped under the elastic force effect of the third springs, installation of the bottom plate and the main box body can be achieved, and operation is more labor-saving and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of thermal flow sensors, and in particular to a thermal flow sensor. Background Art

[0002] The heat flow sensor is a basic tool for measuring heat transfer and is the most critical component of the heat flow meter. The performance and use of the heat flow sensor determine the performance and use of the heat flow meter.

[0003] After searching, the patent number is CN216116444U, which is a new type of heat flow sensor. The bottom plate of the main box is fixed on the fixed plate by fastening bolts. It is easy to disassemble and install, has a relatively simple structure, good development prospects, and is more suitable for promotion.

[0004] However, when installing or disassembling the bottom plate and the main box body as a whole on the fixing plate, tools are needed to respectively turn up or down the fastening bolts, which is laborious. Therefore, there is room for improvement. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the present application provides a thermal flow sensor.

[0006] The thermal flow sensor provided in this application adopts the following technical solution:

[0007] A thermal flow sensor comprises a bottom plate, a mounting plate and a main box body, wherein the bottom plate is arranged on two mounting plates with mounting holes, the main box body is arranged in the middle of the bottom plate, an indicator light is embedded in the front of the main box body, a push rod is inserted into the middle of the top of the main box body, a push block is arranged on the top of the push rod, a first spring is connected between the push block and the main box body, a heat transfer rod is connected to the bottom end of the push rod passing through the bottom plate, a thermosensitive source material block is arranged at the bottom end of the heat transfer rod, an insert tube passes through the middle of the top of the mounting plate, slots are arranged on four sides of the insert tube, insert blocks pass through both sides of the top of the bottom plate, and card blocks pass through four sides of the insert block, the card blocks are inserted into the card slots, a U-shaped plate is arranged at the position of each card block on the inner wall of the insert block, the card block is connected to the inner wall of the U-shaped plate, and a third spring is connected between the U-shaped plate and the inner wall of the insert block.

[0008] Preferably, a screw rod passes through the screw hole in the middle of the U-shaped plate, one end of the screw rod is connected to the inner wall of the insert block, and the other end of the screw rod is sleeved with a gear.

[0009] Preferably, a rotating rod is inserted into the insert block for vertical rotation, a rotating disk is sleeved on the bottom end of the rotating rod, and teeth under the rotating disk are meshed and connected with the gear.

[0010] Preferably, an insertion rod is inserted into the insertion hole at the top of the rotating rod, a rotating block is provided at the top of the insertion rod, a second spring is connected between the top of the insertion rod and the rotating rod, and locking grooves are provided at the upper positions of both sides of the insertion block, and the rotating block is inserted into the locking grooves.

[0011] Preferably, a threaded seat is provided on the bottom plate at the peripheral side of the insert block, and a threaded cover is tightened on the threaded seat.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The utility model has a card slot on the side of the insert tube on the two mounting plates, and a card block, a U-shaped plate and a third spring are arranged on the insert block on the bottom plate, so that the insert block on the bottom plate can be directly inserted into the insert tube, and the card block is automatically pushed into the card slot and clamped under the elastic force of the third spring, so that the installation of the bottom plate and the main box can be realized, and the operation is more labor-saving and convenient;

[0014] 2. A screw and a gear are provided in the plug block, and teeth meshing with the gear are provided on the bottom chassis of the rotating rod passing through the plug block. When disassembling, the disassembly work can be realized by simply rotating the rotating disk with the rotating rod to drive the card block to be pulled out of the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the structure of a heat flow sensor in an embodiment of the present application;

[0016] Figure 2 It is a schematic diagram of the structure inside the threaded cover of a heat flow sensor in an embodiment of the present application;

[0017] Figure 3 It is an enlarged view of the structure at location A of a heat flow sensor in an embodiment of the present application;

[0018] Figure 4 It is a schematic diagram of the structure below the mounting plate of a heat flow sensor in an embodiment of the present application;

[0019] Figure 5 It is a schematic diagram of the internal structure of an insert block of a heat flow sensor in an embodiment of the present application;

[0020] Figure 6 It is an enlarged view of the structure at location B of a thermal flow sensor in an embodiment of the present application.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. bottom plate; 2. mounting plate; 3. main box body; 4. push block; 5. push rod; 6. first spring; 7. indicator light; 8. heat conduction rod; 9. heat-sensitive source material block; 10. insert tube; 11. threaded seat; 12. threaded cover; 13. insert block; 14. rotating rod; 15. insert rod; 16. second spring; 17. rotating block; 18. positioning groove; 19. turntable; 20. block; 21. slot; 22. U-shaped plate; 23. third spring; 24. gear; 25. screw. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-6 This application is described in further detail.

[0023] Reference Figure 1-6 A heat flow sensor comprises a bottom plate 1, a mounting plate 2 and a main box body 3. The bottom plate 1 is arranged on two mounting plates 2 with mounting holes. The main box body 3 is installed in the middle of the bottom plate 1. An indicator light 7 is embedded in the front of the main box body 3. A push rod 5 is inserted into the middle of the top of the main box body 3. A push block 4 is arranged on the top of the push rod 5. A first spring 6 is connected between the push block 4 and the main box body 3. A heat conduction rod 8 is connected to the bottom end of the push rod 5 passing through the bottom plate 1. A heat-sensitive source material block 9 is arranged at the bottom end of the heat conduction rod 8. An insert tube 10 passes through the middle of the top of the mounting plate 2. Card slots 21 are arranged on the four sides of the insert tube 10. Insert blocks 13 are passed through the two sides of the bottom plate 1, and clamping blocks 20 are passed through the four sides of the insert block 13. One side of the clamping block 20 passing through the insert block 13 is an inclined surface, and the clamping block 20 is inserted into the clamping slot 21. A U-shaped plate 22 is provided at the position of each clamping block 20 on the inner wall of the insert block 13. The clamping block 20 is connected to the inner wall of the U-shaped plate 22. A third spring 23 is connected between the U-shaped plate 22 and the inner wall of the insert block 13. When the insert block 13 on the bottom plate 1 is inserted into the insertion tube 10, the elastic force of the third spring 23 can automatically push the clamping block 20 to be inserted into the clamping slot 21, thereby realizing the installation of the bottom plate 1 and the main box 3 as a whole.

[0024] See also Figure 1-6A screw rod 25 passes through the screw hole in the middle of the U-shaped plate 22, one end of the screw rod 25 is rotatably connected to the inner wall of the plug block 13, and a gear 24 is fixedly sleeved on the other end of the screw rod 25. A rotating rod 14 is vertically rotatably inserted into the plug block 13, and a rotating disk 19 is fixedly sleeved on the bottom end of the rotating rod 14. The teeth under the rotating disk 19 are meshed and connected with the gear 24. The insertion hole at the top of the rotating rod 14 is inserted into the insertion rod 15, and a rotating block 17 is provided at the top of the insertion rod 15. A second spring 16 is connected between the top of the insertion rod 15 and the rotating rod 14 , the upper positions of both sides of the plug block 13 are provided with a locking groove 18, and the rotating block 17 is inserted into the locking groove 18. A threaded seat 11 is provided on the bottom plate 1 at the peripheral side of the plug block 13, and a threaded cover 12 is tightened on the threaded seat 11. After the threaded cover 12 is removed from the threaded seat 11, the rotating block 17 can be pulled out from the locking groove 18, and the rotating disk 19 is rotated by the rotating block 17. The gear 24 drives the screw rod 25 to rotate, and the locking block 20 can be pulled out from the locking groove 21, thereby realizing the disassembly of the main box body 3, and the operation is simple and convenient.

[0025] The implementation principle of a heat flow sensor in an embodiment of the present application is as follows: first, the plug block 13 on the base plate 1 is inserted into the plug tube 10, and the side of the clamping block 20 on the plug block 13 presses the top of the plug tube 10, and the clamping block 20 moves toward the plug block 13, squeezing the third spring 23 to compress. When the base plate 1 is completely attached to the mounting plate 2, the elastic force of the third spring 23 is used to push the clamping block 20 into the clamping slot 21, so that the main box body 3 on the base plate 1 is fixed on the mounting plate 2. When measuring the temperature, the heat conduction rod 8 is pressed downward by the pressing block 4, driving the thermosensitive source material block 9 to move downward and contact the object to be measured, and the temperature is transmitted to the ammeter, and the measured temperature is displayed by the indicator light 7.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat flow sensor, comprising a base plate (1), a mounting plate (2) and a main housing (3), characterized in that: The bottom plate (1) is arranged on two mounting plates (2) with mounting holes, the main box (3) is installed in the middle of the bottom plate (1), an indicator light (7) is embedded in the front of the main box (3), a push rod (5) is inserted into the middle of the top of the main box (3), a push block (4) is arranged at the top of the push rod (5), a first spring (6) is connected between the push block (4) and the main box (3), a heat conduction rod (8) is connected to the bottom end of the push rod (5) passing through the bottom plate (1), a heat-sensitive source material block (9) is arranged at the bottom end of the heat conduction rod (8), and the mounting plate ( 2) is passed through the middle of the upper part, and the four sides of the insertion tube (10) are provided with a card slot (21), the upper sides of the bottom plate (1) are passed through the insertion blocks (13), and the four sides of the insertion blocks (13) are passed through the card slot (21), and the card blocks (20) are inserted into the card slot (21), and the inner wall of the insertion block (13) is provided with a U-shaped plate (22) at the position corresponding to each card block (20), and the card block (20) is connected to the inner wall of the U-shaped plate (22), and a third spring (23) is connected between the U-shaped plate (22) and the inner wall of the insertion block (13).

2. A thermal flow sensor according to claim 1, characterized in that: A screw rod (25) passes through a screw hole in the middle of the U-shaped plate (22), one end of the screw rod (25) is connected to the inner wall of the insert block (13), and the other end of the screw rod (25) is sleeved with a gear (24).

3. A thermal flow sensor according to claim 1, characterized in that: A rotating rod (14) is inserted into the insert block (13) for vertical rotation. A rotating disk (19) is sleeved on the bottom end of the rotating rod (14). The teeth on the bottom of the rotating disk (19) are meshed and connected with the gear (24).

4. A thermal flow sensor according to claim 3, characterized in that: An insertion rod (15) is inserted into the insertion hole at the top end of the rotating rod (14), a rotating block (17) is arranged at the top end of the insertion rod (15), a second spring (16) is connected between the top end of the insertion rod (15) and the rotating rod (14), and locking grooves (18) are provided at upper positions of both side surfaces of the insertion block (13), and the rotating block (17) is inserted into the locking grooves (18).

5. A thermal flow sensor according to claim 1, characterized in that: A threaded seat (11) is provided on the bottom plate (1) at the peripheral side of the insert block (13), and a threaded cover (12) is tightened onto the threaded seat (11).

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