Thermocouple connecting equipment for wind tunnel test
By designing protective plates and spring structures in the thermocouple connecting equipment for wind tunnel tests, the problem of spot welding connecting equipment being easily damaged when moving in the prior art is solved, effectively protecting the ammeter and docking ends, and improving the equipment practicality.
Patent Information
- Application Number
- CN202421311969.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-11
AI Technical Summary
In the existing wind tunnel test, spot welding connection equipment lacks protective structure, which leads to easy collision and damage when moving, affecting the connection of the thermocouple.
A thermocouple connection equipment for wind tunnel testing was designed, including spot welding equipment body, ammeter, adjustment knob, butt end, welding gun, handle, protective plate, fixing block, convex groove, spring and bump, through the protective plate and The spring design protects the ammeter and docking ends to avoid collision damage.
It effectively reduces damage to the ammeter and docking end of the spot welding equipment when it moves, ensures its normal use, and improves the practicality of the equipment.
Smart Images
Figure CN222438986U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of thermocouples, and in particular relates to a thermocouple connection device for wind tunnel tests. Background Art
[0002] A thermocouple is a temperature measuring instrument. It is made of two conductors of different components (called thermocouple wire or hot electrode) connected at both ends to form a loop. When the temperatures of the junctions are different, an electromotive force will be generated in the loop. This phenomenon is called the thermoelectric effect, and this electromotive force is called the thermoelectric potential. Thermocouples use this principle to measure temperature. The end that is directly used to measure the temperature of the medium is called the working end (also called the measuring end), and the other end is called the cold end (also called the compensation end); the cold end is connected to the display instrument or the matching instrument, and the display instrument will indicate the thermoelectric potential generated by the thermocouple.
[0003] During the wind tunnel test, the thermocouple needs to be connected, and then the spot welding equipment will be used. The welding current is conducted to the surface of the workpiece through the electrode, generating high temperature, causing the surface of the workpiece to melt instantly and form a welding point. This process mainly includes four stages: contact, extrusion, welding and cooling. However, there are still certain deficiencies in the use of existing spot welding connection equipment. For example, the lack of a protective structure causes the spot welding connection equipment to be moved. When the current meter and the docking end are moved, the current meter is easily damaged and errors are generated. If the docking end is hit, the docking end will be unable to connect to the welding equipment, thereby affecting the connection of the thermocouple. In view of this, we provide a thermocouple connection device for wind tunnel testing. Utility Model Content
[0004] The purpose of the utility model is to provide a thermocouple connection device for wind tunnel testing, aiming to solve the problem in the prior art that there is a lack of protective structure, which causes the spot welding connection device to need to pay attention to the front end of the ammeter and the docking end when moving. If the ammeter is hit, the ammeter is easily damaged and errors are generated. If the docking end is hit, the docking end cannot be connected to the welding equipment, thereby affecting the connection of the thermocouple. In view of this, we provide a thermocouple connection device for wind tunnel testing.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermocouple connection device for wind tunnel testing, comprising a spot welding device body, an ammeter is installed at the front end of the spot welding device body, an adjustment knob is installed at the front end of the spot welding device body, a butt end is installed at the front end of the spot welding device body, a welding gun is installed inside the butt end, two handles are installed correspondingly at the top of the spot welding device body, a protective plate is provided at the front end of the spot welding device body, fixed blocks are installed on both sides of the front end of the spot welding device body, convex grooves are provided on the corresponding sides of the two fixed blocks, a spring is installed inside the convex groove, a convex block is also connected to the inside of the convex groove, positioning blocks are connected to both sides of the front end of the spot welding device body and away from the fixed blocks, and a groove is provided at the bottom of the positioning block.
[0006] As a preferred embodiment of the thermocouple connection device for wind tunnel test of the utility model, the protrusion is located at the top end of the spring and connected in the protrusion groove, and the protrusion and the protrusion groove are adaptively connected and slidably connected.
[0007] As a preferred embodiment of the thermocouple connection device for wind tunnel test of the utility model, the projection is elastically linked with the fixed block through a spring, and a rotation groove is provided on the inner side wall of the projection.
[0008] As a preferred embodiment of the thermocouple connection device for wind tunnel test of the utility model, rotating shafts are connected to both sides of the protective plate, four rotating shafts are provided, and every two rotating shafts are symmetrically distributed on one side of the protective plate.
[0009] As a preferred embodiment of the thermocouple connection device for wind tunnel test of the utility model, the rotating shaft is adaptively connected to the rotating groove, and the protective plate is rotatably connected to the fixed block through the rotating shaft.
[0010] As a preferred embodiment of the thermocouple connection device for wind tunnel test of the utility model, a handle is connected to the front end of the protective plate, and the protective plate is snap-fitted with the groove via a rotating shaft.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model utilizes a protective plate to shield the protective plate at the front end of the spot welding device body, which can reduce external damage to the docking terminal and the ammeter, and avoid collision when the spot welding device body is moved, thereby preventing the docking terminal and the ammeter from being damaged and unable to be used normally. At the same time, the handle also makes it convenient to carry the spot welding device body for movement, thereby improving the practicality of the spot welding device body. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the flushing pipe structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the flushing pipe structure of the utility model.
[0018] In the figure: 1. spot welding equipment body; 2. ammeter; 3. adjustment knob; 4. docking end; 5. welding gun; 6. handle; 7. protective plate; 8. fixing block; 9. convex groove; 10. spring; 11. convex block; 12. rotating groove; 13. positioning block; 14. groove; 15. handle; 16. rotating shaft. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Embodiment 1
[0021] See also Figure 1-4 The utility model provides the following technical solutions: a thermocouple connection device for wind tunnel test, comprising a spot welding device body 1, an ammeter 2 is installed at the front end of the spot welding device body 1, an adjusting knob 3 is installed at the front end of the spot welding device body 1, a butt end 4 is installed at the front end of the spot welding device body 1, a welding gun 5 is installed inside the butt end 4, two handles 6 are installed correspondingly at the top of the spot welding device body 1, a protective plate 7 is provided at the front end of the spot welding device body 1, fixed blocks 8 are installed on both sides of the front end of the spot welding device body 1, convex grooves 9 are provided on the corresponding sides of the two fixed blocks 8, a spring 10 is installed inside the convex groove 9, and a convex block 11 is also connected to the inside of the convex groove 9, and positioning blocks 13 are connected to both sides of the front end of the spot welding device body 1 and away from the fixed block 8, and a groove 14 is provided at the bottom of the positioning block 13.
[0022] In the embodiment, the use of the spot welding equipment body 1 is described. First, the spot welding equipment body 1 is started and the welding gun 5 is waited for heating. Then the thermocouple is taken out and connected through the welding gun 5. Then a wind tunnel test is performed. The wind tunnel test is an important aerodynamic experimental method, which is mainly used to study gas flow and its interaction with the model, so as to understand the aerodynamic characteristics of actual aircraft or other objects. It should be noted that the wind tunnel test belongs to the existing mature technology, and the spot welding equipment body 1 also belongs to the existing mature technology. There is no obvious connection with the technical features described in this article, so it will not be elaborated in detail.
[0023] Embodiment 2
[0024] See also Figure 1-4 The protrusion 11 is located at the top end of the spring 10 and connected in the protrusion groove 9, and the protrusion 11 and the protrusion groove 9 are adapted and slidably connected.
[0025] Preferably, the projection 11 is elastically linked with the fixing block 8 via the spring 10 , and a rotation groove 12 is provided on the inner side wall of the projection 11 .
[0026] Preferably, two sides of the protective plate 7 are connected with rotating shafts 16 , four rotating shafts 16 are provided, and every two rotating shafts 16 are symmetrically distributed on one side of the protective plate 7 .
[0027] Preferably, the rotating shaft 16 is adaptively connected to the rotating groove 12 , and the protective plate 7 is rotatably connected to the fixed block 8 via the rotating shaft 16 .
[0028] Preferably, a handle 15 is connected to the front end of the protective plate 7 , and the protective plate 7 is snap-fitted with the groove 14 via a rotating shaft 16 .
[0029] In the embodiment, according to the description of the first embodiment, if it is necessary to carry the spot welding equipment body 1 for movement, the welding gun 5 is removed and the protective plate 7 is rotated. Then the protective plate 7 drives the rotating shaft 16 to rotate inside the rotating groove 12, so as to be perpendicular to the front end of the spot welding equipment body 1. Then, the handle 15 is held and pulled downward at an angle. At this time, the rotating shaft 16 applies a downward force to the protrusion 11, thereby squeezing the spring 10 to shrink and deform. At the same time, the protrusion 11 slides downward along the protrusion groove 9 until the rotating shaft 16 at the bottom end of the protective plate 7 exceeds the positioning block 13 and pushes the protective plate 7 inward. Then, the rotating shaft 16 is against the bottom end of the positioning block 13 until the rotating shaft 16 is stuck in the groove 14 and the pushing of the protective plate 7 is stopped. Then, the elastic tension of the spring 10 pushes the protrusion 11 to move upward, thereby ensuring the stability of the installation of the protective plate 7. Finally, the handle 6 is held for carrying.
[0030] In summary, according to the description of embodiments one and two, the protective plate 7 is used to shield the protective plate 7 at the front end of the spot welding equipment body 1, which can reduce external damage to the docking terminal 4 and the ammeter 2, and avoid bumps when the spot welding equipment body 1 moves, thereby avoiding damage to the docking terminal 4 and the ammeter 2 and making them unable to be used normally. At the same time, the handle 6 also makes it convenient to carry the spot welding equipment body 1 and move it, thereby improving the practicality of the spot welding equipment body 1.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A thermocouple connection device for wind tunnel testing, comprising a spot welding device body (1), characterized in that: An ammeter (2) is installed at the front end of the spot welding device body (1), an adjusting knob (3) is installed at the front end of the spot welding device body (1), a butt end (4) is installed at the front end of the spot welding device body (1), and a welding gun (5) is installed inside the butt end (4); Two handles (6) are installed correspondingly at the top of the spot welding device body (1), a protective plate (7) is arranged at the front end of the spot welding device body (1), fixed blocks (8) are installed on both sides of the front end of the spot welding device body (1), and convex grooves (9) are provided on the corresponding sides of the two fixed blocks (8), a spring (10) is installed inside the convex groove (9), and a convex block (11) is also connected inside the convex groove (9), and positioning blocks (13) are connected to both sides of the front end of the spot welding device body (1) away from the fixed blocks (8), and a groove (14) is provided at the bottom end of the positioning block (13).
2. A thermocouple connection device for wind tunnel testing according to claim 1, characterized in that: The convex block (11) is located at the top end of the spring (10) and connected in the convex groove (9), and the convex block (11) and the convex groove (9) are adaptively slidably connected.
3. The thermocouple connection device for wind tunnel testing according to claim 1, characterized in that: The convex block (11) is elastically linked with the fixed block (8) via a spring (10), and a rotation groove (12) is provided on the inner side wall of the convex block (11).
4. A thermocouple connection device for wind tunnel testing according to claim 1, characterized in that: Rotation shafts (16) are connected to both sides of the protection plate (7), and four rotation shafts (16) are provided, with every two rotation shafts (16) being symmetrically distributed on one side of the protection plate (7).
5. A thermocouple connection device for wind tunnel testing according to claim 4, characterized in that: The rotating shaft (16) is adaptively connected to the rotating groove (12), and the protective plate (7) is rotatably connected to the fixed block (8) via the rotating shaft (16).
6. A thermocouple connection device for wind tunnel testing according to claim 1, characterized in that: The front end of the protective plate (7) is connected to a handle (15), and the protective plate (7) is snap-fitted with the groove (14) via a rotating shaft (16).