Square test protective cover of heat flow meter

Abstract

The utility model discloses a heat flow meter square test protective cover, relates to the test protective cover technology field, and comprises a heat flow meter test head and a spacing mechanism, one side of the heat flow meter test head is provided with a protective cover body, and one side of the protective cover body is provided with a spacing mechanism. According to the square test protective cover for the heat flow meter, two groups of positioning rods on one side of the protective cover body are in butt joint with fixing blocks b, convex blocks at the end parts of the positioning rods penetrate through straight grooves a to enter spiral grooves, at the moment, the positioning rods rotate and gradually drive the convex blocks to move into the straight grooves b, and a shifting rod extrudes a tension spring on one side to enable the tension spring to contract; after the protruding block moves out of the straight groove b, the tension spring can reset and drive the positioning rod to rotate and reset, and the positioning rod can drive the protruding block to rotate and be staggered with the straight groove b, so that the positioning rod is fixed in the fixing block b, and installation of the protective cover body is completed.

Description

Technical Field

[0001] This utility model relates to the field of test protective cover technology, specifically a square test protective cover for a heat flow meter. Background Technology

[0002] A heat flow meter is an instrument used to measure heat flux density, primarily for studying the thermal properties of materials and heat transfer processes. It determines heat flux density by measuring the rate at which heat is transferred within a material. It typically uses thermal sensors to detect heat flow and convert it into an electrical signal for measurement and analysis. During testing, the heat flow meter ejects either cold or hot air through a nozzle to test the material. A protective shield is usually installed at the nozzle to protect the material being tested.

[0003] The square test shield for a heat flow meter is a tool installed at the nozzle of the heat flow meter. When using existing heat flow meters, it is necessary to align the connecting lugs on the top of the meter with the connecting lugs on the bottom of the test head, then pass the bolts through the two sets of test lugs, and rotate the nuts and bolts to engage the threaded drive, thereby completing the fixing of the shield. This method of installing the shield is relatively cumbersome and inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a square test protective cover for a heat flow meter to solve the problem mentioned in the background art that the existing square test protective covers for heat flow meters are inconvenient to install.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a square protective cover for a heat flow meter, comprising: a heat flow meter test head and a limiting mechanism, wherein a protective cover body is provided on one side of the heat flow meter test head.

[0006] A limiting mechanism is provided on one side of the protective cover body. The limiting mechanism includes a fixed block a fixedly connected to one side of the movable cover. A connecting shaft is movably connected inside the fixed block a via a bearing. A positioning rod is fixedly connected to the top of the connecting shaft. A fixed block b is connected through the outside of the positioning rod. A protrusion is fixedly connected to one end of the positioning rod. A spiral groove matching the protrusion is opened inside the fixed block b. Adjustment mechanisms are provided on both sides of the movable cover. The movable cover is slidably connected to the outside of the protective cover body.

[0007] Specifically, the spiral groove is used to guide the protrusion, so that the protrusion drives the positioning rod to rotate, thereby completing the fixing of the positioning rod and the fixed block b.

[0008] Preferably, one end of the spiral groove is connected to a straight groove a, and the other end of the spiral groove is connected to a straight groove b.

[0009] Specifically, straight groove a and straight groove b are set in a staggered manner.

[0010] Preferably, both the straight groove a and the straight groove b are formed inside the fixed block b, one side of the protrusion is hemispherical, and one end of the connecting shaft is fixedly connected to a lever.

[0011] Preferably, a tension spring is fixedly connected to one side of the lever, one end of the tension spring is fixedly connected to the protective cover body, and one end of the lever is arc-shaped.

[0012] Specifically, the end of the lever is arc-shaped to facilitate operation, and a tension spring is used to reset the lever.

[0013] Preferably, one end of the protrusion is hemispherical, and one side of the fixing block b is fixedly connected to the heat flow meter test head.

[0014] Preferably, the adjustment mechanism includes a connecting rod that is movably connected to both sides of the movable cover via a rotating shaft. One end of the connecting rod is fixedly connected to a locking block, and multiple sets of locking slots matching the locking blocks are provided on both sides of the movable cover.

[0015] Specifically, the slot is used to engage with the card block, thereby fixing the position of the movable cover.

[0016] Preferably, a toggle block is fixedly connected to the end of the connecting rod away from the locking block, a spring sheet is abutted on one side of the toggle block, and one side of the spring sheet is fixedly connected to the movable cover.

[0017] Specifically, the spring is used to push the toggle block to reset.

[0018] Preferably, a slider is fixedly connected to the inner side of the movable cover, and grooves matching the slider are provided on both sides of the protective cover body.

[0019] Compared with existing technologies, the advantages of this square test shield for the heat flow meter are:

[0020] 1. When the square test protective cover of the heat flow meter is installed onto the heat flow meter test head, the two sets of positioning rods on one side of the protective cover body are aligned with the fixing block b. The protrusion at the end of the positioning rod passes through the straight groove a and enters the spiral groove. At this time, the positioning rod will rotate and gradually move the protrusion into the straight groove b. The lever will compress the tension spring on one side, causing it to contract. When the protrusion moves out of the straight groove b, the tension spring will reset and drive the positioning rod to rotate and reset. The positioning rod will then drive the protrusion to rotate and misalign with the straight groove b, so that the positioning rod is fixed in the fixing block b, completing the installation of the protective cover body. The protective cover body can shield the test object during heat flow meter testing, playing a protective role. In this way, the above operation makes it easy to install the protective cover body onto the heat flow meter test head.

[0021] 2. The square test protective cover for the heat flow meter allows for adjustment of its length to accommodate test objects of different volumes. This is achieved by pressing two sets of actuating blocks, which rotate a connecting rod. One side of the actuating block presses against a spring clip, causing the connecting rod to move a locking block at one end, disengaging it from a set of slots. This allows the cover to be moved, changing its overall length. After adjustment, the actuating blocks can be released, causing the spring clip to reset and push the actuating blocks and connecting rod to rotate, engaging the locking block with another set of slots and securing the protective cover. This process facilitates adjustment of the length of the square test protective cover for the heat flow meter to accommodate test objects of different volumes. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional cross-sectional view of the movable cover of this utility model;

[0024] Figure 3 This is a three-dimensional cross-sectional view of the protective cover body of this utility model;

[0025] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model;

[0026] Figure 5 This is a three-dimensional schematic diagram of the positioning rod of this utility model;

[0027] Figure 6 This is a three-dimensional cross-sectional view of the fixing block b of this utility model.

[0028] In the diagram: 1. Heat flow meter test head; 2. Protective cover body; 3. Limiting mechanism; 301. Fixing block a; 302. Connecting shaft; 303. Positioning rod; 304. Fixing block b; 305. Protrusion; 306. Straight groove a; 307. Spiral groove; 308. Straight groove b; 309. Toggle rod; 310. Tension spring; 4. Adjusting mechanism; 401. Connecting rod; 402. Locking block; 403. Locking groove; 404. Toggle block; 405. Spring; 406. Sliding block; 407. Sliding groove; 5. Moving cover. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6 This utility model provides a technical solution: a square protective cover for a heat flow meter, comprising: a heat flow meter test head 1 and a limiting mechanism 3, wherein a protective cover body 2 is provided on one side of the heat flow meter test head 1.

[0031] A limiting mechanism 3 is provided on one side of the protective cover body 2. The limiting mechanism 3 includes a fixed block a301 fixedly connected to one side of the movable cover 5. A connecting shaft 302 is movably connected inside the fixed block a301 via a bearing. A positioning rod 303 is fixedly connected to the top of the connecting shaft 302. A fixed block b304 is connected through the outside of the positioning rod 303. A protrusion 305 is fixedly connected to one end of the positioning rod 303. A spiral groove 307 matching the protrusion 305 is opened inside the fixed block b304. An adjustment mechanism 4 is provided on both sides of the movable cover 5. The movable cover 5 is slidably connected to the outside of the protective cover body 2.

[0032] One end of the spiral groove 307 is connected to a straight groove a306, and the other end of the spiral groove 307 is connected to a straight groove b308. Both straight grooves a306 and b308 are opened inside the fixed block b304. One side of the protrusion 305 is hemispherical. One end of the connecting shaft 302 is fixedly connected to a lever 309. One side of the lever 309 is fixedly connected to a tension spring 310. One end of the tension spring 310 is fixedly connected to the protective cover body 2. One end of the lever 309 is arc-shaped. One end of the protrusion 305 is hemispherical. One side of the fixed block b304 is fixedly connected to the heat flow meter test head 1. The protective cover body 2, the lever 309, and the tension spring 310 constitute an elastic telescopic mechanism.

[0033] In specific implementation, when the square test protective cover of the heat flow meter is installed on the test head 1 of the heat flow meter, the two sets of positioning rods 303 on one side of the protective cover body 2 pass through the positioning holes inside the fixing block b304 on one side of the heat flow meter test head 1. The protrusion 305 at the end of the positioning rod 303 will enter the straight groove a306 and contact the spiral groove 307 as the positioning rod 303 moves continuously. Since the position of the fixing block b304 is fixed, the positioning rod 303 will rotate at this time and gradually drive the protrusion 305 to move into the straight groove b308. When the positioning rod 303 rotates, it will drive the connecting shaft 302 and the lever 309 at the bottom to rotate as well, so that the lever 309 will compress the tension spring 310 on one side and cause it to contract. When the protrusion 305 moves out... After the straight groove b308 is inserted, the tension spring 310 will reset and drive the positioning rod 303 to rotate and reset. The positioning rod 303 will then drive the protrusion 305 to rotate and misalign with the straight groove b308, so that the positioning rod 303 is fixed in the fixing block b304, completing the installation of the protective cover body 2. The protective cover body 2 can shield the test object during the heat flow meter test, playing a protective role. When it is necessary to disassemble the protective cover body 2, the tension spring 310 is stretched by moving the lever 309, which drives the positioning rod 303 and the protrusion 305 to rotate, so that the protrusion 305 is aligned with the straight groove b308. Then the protective cover body 2 can be moved to separate from the heat flow meter test head 1. In this way, the protective cover body 2 can be easily installed on the heat flow meter test head 1.

[0034] Please see Figures 1-3 The adjustment mechanism 4 includes a connecting rod 401 that is movably connected to both sides of the movable cover 5 via a rotating shaft. One end of the connecting rod 401 is fixedly connected to a locking block 402. Both sides of the movable cover 5 have multiple sets of locking slots 403 that match the locking block 402. The end of the connecting rod 401 away from the locking block 402 is fixedly connected to a toggle block 404. One side of the toggle block 404 abuts against a spring piece 405. One side of the spring piece 405 is fixedly connected to the movable cover 5. A slider 406 is fixedly connected to the inner side of the movable cover 5. Both sides of the protective cover body 2 have sliding grooves 407 that match the slider 406. The connecting rod 401 and the movable cover 5 form a rotating structure via a rotating shaft.

[0035] In practical implementation, when adjusting the length of the square test protective cover 2 of the heat flow meter to accommodate test objects of different volumes, pressing two sets of actuating blocks 404 drives the connecting rod 401 to rotate. One side of the actuating block 404 will squeeze the spring piece 405, while the connecting rod 401 will drive the locking block 402 at one end to move, disengaging from the locking slot 403. Then, the movable cover 5 can be moved to change the overall length of the test protective cover. After adjustment, the actuating block 404 can be released. At this time, the spring piece 405 will reset and push the actuating block 404 and the connecting rod 401 to rotate, so that the locking block 402 engages with another set of locking slots 403, thus fixing the protective cover 2. In this way, the length of the square test protective cover of the heat flow meter can be easily adjusted to accommodate test objects of different volumes.

[0036] In summary: When using the square test shield of the heat flow meter, first install the shield body 2 onto one side of the heat flow meter test head 1. The heat flow meter test head 1 will shield and protect the object being tested, preventing the cold or hot air from flowing out. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat flow meter square test guard comprising: A heat flow tester test head (1) and a limiting mechanism (3), one side of the heat flow tester test head (1) is provided with a protective cover body (2), characterized in that, One side of the protective cover body (2) is provided with a limiting mechanism (3), the limiting mechanism (3) comprises a fixed block a (301) fixedly connected with one side of a moving cover (5), a connecting shaft (302) movably connected with the inside of the fixed block a (301) through a bearing, a positioning rod (303) fixedly connected with the top of the connecting shaft (302), a fixed block b (304) connected with the outside of the positioning rod (303) in a penetrating manner, a protruding block (305) fixedly connected with one end of the positioning rod (303), a spiral groove (307) matched with the protruding block (305) is formed in the inside of the fixed block b (304), and the moving cover (5) is provided with an adjusting mechanism (4) on both sides.

2. The heat flow meter square test guard of claim 1, wherein: One end of the spiral groove (307) is connected with a straight groove a (306), and the other end of the spiral groove (307) is connected with a straight groove b (308).

3. The heat flow meter square test guard of claim 2, wherein: The straight groove a (306) and the straight groove b (308) are both formed in the inside of the fixed block b (304), one side of the protruding block (305) is hemispherical, and one end of the connecting shaft (302) is fixedly connected with a lever (309).

4. The heat flow meter square test guard of claim 3, wherein: One side of the lever (309) is fixedly connected with a tension spring (310), one end of the tension spring (310) is fixedly connected with the protective cover body (2), and one end of the lever (309) is arc-shaped.

5. The heat flow meter square test boot of claim 1, wherein: One end of the protruding block (305) is hemispherical, and one side of the fixed block b (304) is fixedly connected with the heat flow tester test head (1).

6. The heat flow meter square test boot of claim 1, wherein: The adjusting mechanism (4) comprises a connecting rod (401) movably connected with both sides of the moving cover (5) through a rotating shaft, one end of the connecting rod (401) is fixedly connected with a clamping block (402), and a plurality of clamping grooves (403) matched with the clamping block (402) are formed in both sides of the moving cover (5).

7. The heat flow meter square test guard of claim 6, wherein: One end of the connecting rod (401) away from the clamping block (402) is fixedly connected with a pushing block (404), one side of the pushing block (404) abuts against an elastic sheet (405), and one side of the elastic sheet (405) is fixedly connected with the moving cover (5).

8. The heat flow meter square test guard of claim 1, wherein: The inside of the moving cover (5) is fixedly connected with a sliding block (406), and both sides of the protective cover body (2) are provided with sliding grooves (407) matched with the sliding block (406).

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