Temperature and pressure integrated intelligent digital display device
By integrating the temperature probe rod and the pressure core into the temperature-pressure integrated part, and adopting structures such as sleeves and welded seals, the problems of unstable use and high cost of existing temperature-pressure integrated sensors are solved, and a high-precision and low-cost temperature-pressure integrated intelligent digital display device is realized.
Patent Information
- Application Number
- CN202411685842.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-02-25
AI Technical Summary
The existing temperature-pressure integrated sensors have technical barriers to the compatibility mechanism of temperature chips and pressure sensors, which lead to unstable use, large data acquisition errors and expensive; independent temperature equipment and pressure equipment are installed at high cost, high space requirements and complex installation.
A temperature-pressure integrated intelligent digital display device is designed. By integrating the temperature probe rod and the pressure core into the temperature-pressure integrated part, a sleeve is used to protect the temperature probe rod, and a welding seal and a retract nut are used to achieve installation to ensure the sealing durability of the product.
It realizes simultaneous measurement of temperature and pressure, reduces costs, improves data accuracy, and has a compact product design, which is suitable for installation needs in complex environments.
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Figure CN119509621A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of instrument equipment, and in particular to a temperature-pressure integrated intelligent digital display device. Background Art
[0002] The temperature and pressure integrated intelligent digital display device is an integrated product used in the instrument industry for temperature and pressure collection. The temperature and pressure integrated digital display device can simultaneously measure and display the temperature and pressure values of the measured medium, and is widely used in various occasions where temperature and pressure monitoring is required, such as industrial automation control systems, environmental monitoring systems, etc.
[0003] At present, in response to the need to detect temperature and pressure simultaneously, the commonly used methods in the corresponding system are to install a temperature-pressure integrated sensor or use independent temperature equipment and independent pressure equipment. The temperature-pressure integrated sensor is unstable in use, has large errors in data collection, and is expensive due to the technical barriers of temperature chip research and development and pressure sensor compatibility mechanism. When independent temperature equipment and pressure equipment are installed at the test point, the product needs to be changed into two devices, which increases the cost, and the installation and construction costs also increase significantly. At the same time, the space and installation location requirements for the instrument are high.
[0004] In view of the shortcomings of the above two methods, it is necessary to develop a new temperature-pressure integrated intelligent digital display device, which has lower cost and higher data accuracy while maintaining the ability to detect temperature and pressure data of a product at the same time. Summary of the invention
[0005] In order to detect temperature and pressure data simultaneously with lower cost and higher data accuracy, the present application provides a temperature and pressure integrated intelligent digital display device.
[0006] The present application provides a temperature-pressure integrated intelligent digital display device that adopts the following technical solution: A temperature-pressure integrated intelligent digital display device, comprising: A digital meter body, wherein a connecting piece is provided at the bottom end of the digital meter body; A temperature-pressure integrated part, the top of which is threadedly connected to the connecting piece, a sleeve and a pressure core are arranged in the temperature-pressure integrated part, a temperature probe rod is placed in the sleeve, and the bottom end of the sleeve extends out of the temperature-pressure integrated part; A welding seal, wherein the welding seal comprises a limiting end and a connecting end, the sleeve is passed through the welding seal, the limiting end abuts against the bottom end of the temperature-pressing integrated part, and the connecting end is used to connect with the product to be tested; A union nut, wherein the union nut is sleeved on the welding seal, the union nut is in contact with the bottom of the limiting end, and the union nut is threadedly connected with the bottom end of the warm-pressed integrated part.
[0007] By adopting the above technical solution, the temperature probe and the pressure core are integrated into the temperature-pressure integrated part to achieve simultaneous measurement of temperature and pressure. The temperature probe is protected by a sleeve to achieve long-term use. Welding seals and union nuts are used for installation to ensure the sealing durability of the product. The digital display device can be connected to the product to be tested through the connection end, which is easy to use.
[0008] The temperature probe and pressure core are both made of mature technology and high precision products, which are relatively cheap, making the digital display device low-cost. By selecting temperature and pressure integrated parts, welding seals and other related structures, the highly integrated design of the temperature and pressure integrated intelligent digital display device is realized. The product design is compact and has high space utilization, which is suitable for installation requirements in various complex environments.
[0009] Preferably, the warm-pressed integrated part includes a warm-pressed integrated upper end piece, a warm-pressed integrated main body piece and a warm-pressed integrated lower end piece connected in sequence from top to bottom, the warm-pressed integrated upper end piece is threadedly connected to the connecting piece, the top end surface of the sleeve and the top end surface of the pressure core are both flush with the upper surface of the warm-pressed integrated main body piece, and the warm-pressed integrated lower end piece abuts against the limiting end and is threadedly connected to the living nut.
[0010] By adopting the above technical scheme, the step-by-step connection method of the temperature-pressed integrated upper end piece, the temperature-pressed integrated main body piece and the temperature-pressed integrated lower end piece realizes the modular design of the device, simplifies the assembly process, and connects the sleeve and the pressure core to the temperature-pressed integrated main body piece to achieve compatible application of the structure, and the stability and compactness of the entire structure are good.
[0011] Preferably, the warm-pressed integrated upper end piece and the warm-pressed integrated lower end piece are both provided with a connecting ring at one end close to the warm-pressed integrated main body piece, and both ends of the warm-pressed integrated main body piece are provided with a slot, the side wall of the connecting ring and the side wall of the slot are abutted, and the bottom of the connecting ring and the bottom of the slot are connected by laser welding.
[0012] By adopting the above technical solution, by setting the connecting ring and the card slot to abut each other, and then laser docking the joint, the connection between the seal and the product is directly guaranteed, the cost is reduced, and at the same time the coaxiality effect after the joint welding is improved.
[0013] Preferably, the side walls of the connecting piece and the warm-pressed integrated upper end piece are both provided with locking holes, and the locking holes are connected with locking machine screws.
[0014] By adopting the above technical solution, locking the machine screws can prevent them from falling off and theft, further enhancing the stability of the product connection.
[0015] Preferably, a first gap is vertically arranged between the outer wall of the sleeve and the inner walls of the welding seal and the warm-pressed integrated lower end piece, a second gap is horizontally arranged between the warm-pressed integrated main body and the warm-pressed integrated lower end piece, and a third gap is arranged between the bottom end of the pressure core and the warm-pressed integrated main body, and the first gap, the second gap and the third gap together form an air chamber.
[0016] By adopting the above technical solution, gas is collected through the first gap and flows into the digital display device, and the pressure core senses the collected gas through the second gap and the third gap, thereby realizing gas transfer. In the case of temperature collection, the pressure source collection work is realized through common accessories, and at the same time, the space is extremely compressed and miniaturized, and the proportions of the whole machine are coordinated.
[0017] Preferably, a first gap is laterally arranged between the warm-pressed integrated main body and the warm-pressed integrated upper end piece, and the first gap and a second gap between the inner walls of the warm-pressed integrated upper end piece together form a cable chamber.
[0018] By adopting the above technical solution, the setting of the cable chamber provides sufficient wiring space to ensure that the outlet wires of the temperature probe and the outlet wires of the pressure core can be smoothly routed out from the center hole of the temperature-pressure integrated upper end piece after welding, which is safer and more convenient.
[0019] Preferably, the top diameter of the sleeve is larger than the diameter of the barrel, the top of the sleeve and the temperature probe form a potting cavity, the potting cavity is filled with silicone, and the top surface of the sleeve and the upper surface of the temperature-pressed integrated main body are connected by laser welding.
[0020] By adopting the above technical solution, the temperature probe is fixed in the sleeve by filling the potting cavity with silicone, and the sealing performance of laser welding is stable, ensuring that there is no air leakage between the sleeve and the temperature-pressed integrated main body. The setting of the potting cavity makes later maintenance convenient, and the temperature probe can be replaced by removing the silicone buckle.
[0021] Preferably, the side walls of the pressure core and the warm-pressed integrated upper end piece are both provided with sealing grooves, a first sealing ring is arranged in the sealing groove, and the top surface of the pressure core and the upper surface of the warm-pressed integrated main body piece are connected by laser welding.
[0022] By adopting the above technical solution, the sealing performance of the pressure core and the temperature-pressed integrated upper end piece is improved by the first sealing ring, gas leakage is effectively prevented, the sealing performance of the laser welding method is stable, and the thread processing process and cost are reduced.
[0023] Preferably, a packaging groove is provided at the bottom of the warm-pressed integrated lower end piece, a second sealing ring is arranged in the packaging groove, and the limiting end abuts against the second sealing ring.
[0024] By adopting the above technical solution, the second sealing ring enhances the sealing performance of the product and improves the accuracy of the detection data.
[0025] Preferably, the digital meter body is provided with an outer cylinder, a circuit board and a battery are provided inside the outer cylinder, a display screen is provided on the outer cylinder, the display screen is electrically connected to the circuit board, and the outer cylinder is connected to an antenna.
[0026] By adopting the above technical solution, the circuit board is used to collect temperature and pressure data at the same time, the displayed data is convenient for viewing on the display screen, and the antenna is used to transmit and collect data.
[0027] In summary, the present application has at least one of the following beneficial effects: 1. By integrating the temperature probe and the pressure core into the temperature-pressure integrated part, the temperature and pressure can be measured simultaneously. The temperature probe can be protected by a sleeve for long-term use. Welding seals and union nuts are used for installation to ensure the sealing durability of the product. The digital display device can be connected to the product to be tested through the connection end, which is easy to use.
[0028] The temperature probe and pressure core are both made of mature technology and high precision products, which are relatively cheap, making the digital display device low-cost. By selecting temperature and pressure integrated parts, welding seals and other related structures, the highly integrated design of the temperature and pressure integrated intelligent digital display device is realized. The product design is compact and has high space utilization, which is suitable for installation requirements in various complex environments.
[0029] 2. The gas collected through the first gap flows into the digital display device, and the pressure core senses the collected gas through the second gap and the third gap to achieve gas transfer, thereby realizing the collection of pressure source through shared accessories under the condition of temperature collection, and at the same time, the space is extremely compressed and miniaturized, and the proportion of the whole machine is coordinated. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is a schematic diagram of the overall structure of the temperature-pressure integrated intelligent digital display device of the present application; Figure 2 This is a structural diagram of the digital meter body in the book of the temperature-pressure integrated intelligent digital display device of this application; Figure 3 It is an exploded view of the various parts of the temperature-pressure integrated intelligent digital display device of the present application; Figure 4 It is a schematic cross-sectional structure diagram of the temperature-pressure integrated intelligent digital display device of the present application; Figure 5 yes Figure 4 A is an enlarged schematic diagram; Figure 6 It is a structural schematic diagram of the temperature-pressure integrated lower end piece, the welding connection piece and the live joint nut in the temperature-pressure integrated intelligent digital display device of the present application.
[0031] Description of reference numerals: 1. Digital meter body; 11. Connecting piece; 111. Locking screw; 112. Locking hole; 12. Outer tube; 13. Antenna; 14. Metal nameplate; 15. Display screen; 2. Temperature-pressed integrated part; 21. Temperature-pressed integrated upper end piece; 211. Connecting ring; 22. Temperature-pressed integrated main part; 221. Slot; 23. Temperature-pressed integrated lower end piece; 231. Packaging groove; 232. Second sealing ring; 3. Sleeve; 31. Temperature probe rod; 32. Potting cavity; 4. Pressure core; 41. Sealing groove; 42. First sealing ring; 5. Welding seal; 51. Limit end; 52. Connecting end; 6. Union nut; 7. Air chamber; 71. First gap; 72. Second gap; 73. Third gap; 8. Cable chamber; 81. First gap; 82. Second gap. DETAILED DESCRIPTION
[0032] The present application is further described in detail below in conjunction with the accompanying drawings.
[0033] The present application embodiment discloses a temperature and pressure integrated intelligent digital display device. Figure 1 A temperature-pressure integrated intelligent digital display device includes a digital meter body 1, a temperature-pressure integrated part 2, a movable hexagonal nut and a welding seal 5 which are arranged in sequence from top to bottom.
[0034] Reference Figure 2 The digital meter body 1 includes an outer tube 12, and a front cover and a rear cover are arranged at both ends of the outer tube 12. A metal nameplate 14 is arranged at the top of the outer tube 12 for laser marking of parameters to display relevant parameters of the product. The outer tube 12 is provided with an antenna 13, and the antenna 13 is used for data transmission and collection. A circuit board and a battery are arranged inside the outer tube 12. When the front cover is unscrewed, the installation position of the circuit board can be seen. The circuit board is used to collect temperature and pressure data. A display screen 15 electrically connected to the circuit board is also arranged on the front cover, so that the temperature and pressure parameters are displayed on the display screen 15. When the rear cover is unscrewed, the replaceable battery can be seen, which is convenient for timely replacement.
[0035] Reference Figure 3 and Figure 4The temperature-pressing integrated part 2 includes a temperature-pressing integrated upper end piece 21, a temperature-pressing integrated main body piece 22 and a temperature-pressing integrated lower end piece 23, which are sequentially connected from top to bottom. The top diameter of the temperature-pressing integrated upper end piece 21 is smaller than the bottom diameter, and a sealing groove 41 is provided on the top side wall. A first sealing ring 42 is provided in the sealing groove 41 to enhance the sealing performance. A connecting piece 11 is provided at the bottom end of the digital meter body 1, and the top of the temperature-pressing integrated upper end piece 21 is threadedly connected to the connecting piece 11 to achieve the connection between the temperature-pressing integrated upper end piece 21 and the digital meter body 1. A locking hole 112 is provided on the side walls corresponding to the connecting piece 11 and the temperature-pressing integrated upper end piece 21, and the connecting piece 11 is threadedly connected with a locking screw 111, which is inserted into the locking hole 112 to prevent slippage and theft, and effectively prevent the temperature-pressing integrated intelligent digital display device from loosening due to vibration or external force during use.
[0036] The temperature-pressed integrated main body 22 is provided with a sleeve 3 and a pressure core 4. The temperature-pressed integrated main body 22 is provided with through holes at the center and the side parts, respectively. The sleeve 3 is located in the through hole at the center, and the pressure core 4 is located in the through hole at the side. The top surface of the sleeve 3 and the top surface of the pressure core 4 are both flush with the upper surface of the temperature-pressed integrated main body 22. A temperature probe rod 31 is provided in the sleeve 3, wherein the bottom ends of the sleeve 3 and the temperature probe rod 31 both extend out of the temperature-pressed integrated main body 22, and the top end of the temperature probe rod 31 extends out to reach the center hole of the temperature-pressed integrated upper end 21.
[0037] The top diameter of the sleeve 3 is larger than the diameter of the barrel. When the temperature probe 31 is placed in the sleeve 3, the inner wall of the top of the sleeve 3 and the outer wall of the temperature probe 31 form a potting cavity 32, and the potting cavity 32 is filled with silicone to fix the temperature probe 31 and the sleeve 3. The sleeve 3 protects the temperature probe 31, and at the same time, the silicone facilitates the replacement and later maintenance of the temperature probe 31, and only needs to remove the silicone. The upper surface of the sleeve 3 and the temperature-pressed integrated main body 22 are connected by laser welding. The laser welding method is adopted, and the sealing performance is very stable and leak-proof.
[0038] The side wall of the pressure core 4 is provided with a sealing groove 41, in which a first sealing ring 42 is provided to achieve sealing, and a third gap 73 is provided between the bottom end of the pressure core 4 and the bottom end of the warm-pressed integrated main body 22. The upper surfaces of the pressure core 4 and the warm-pressed integrated main body 22 are connected by laser welding, and the sealing performance is stable and leak-proof.
[0039] The temperature probe rod 31 is a temperature probe rod 31 commonly used by temperature manufacturers, which has a stable structure, high precision and is relatively cheap. The pressure core 4 is a mature and high-precision pressure core 4 at home and abroad, and the price is also very cheap. By setting them together in the temperature-pressure integrated main body 22, the temperature probe rod 31 and the pressure core 4 are compatible, and the simultaneous measurement of temperature and pressure is achieved.
[0040] Reference Figure 5 The temperature-pressed integrated upper end piece 21 is provided with a connecting ring 211 at one end close to the temperature-pressed integrated main body piece 22. The top side wall of the temperature-pressed integrated main body piece 22 is provided with a slot 221. The side wall of the connecting ring 211 and the side wall of the slot 221 are in contact with each other. The connection between the temperature-pressed integrated upper end piece 21 and the temperature-pressed integrated main body piece 22 is achieved by anti-misalignment steps. The outer seam is welded by laser welding. The above method has a good coaxiality effect after welding. The laser welding method replaces the old threaded installation method. The threaded installation requires sufficient thread length requirements and force requirements. The two ends need to use internal and external threads to match, which has high cost and space requirements. The laser welding method can directly ensure the connection between the seal and the product, and the cost and working hours are greatly reduced.
[0041] The connecting ring 211 and the card slot 221 adopt the high and low step mode, and a first gap 81 is transversely arranged between the temperature-pressed integrated upper end piece 21 and the temperature-pressed integrated main body piece 22. The first gap 81 and the second gap 82 between the inner walls of the temperature-pressed integrated upper end piece 21 together form a cable chamber 8. The design of the cable chamber 8 provides sufficient wiring space to ensure that the outlet wires of the temperature probe rod 31 and the outlet wires of the pressure core 4 can be smoothly outlet from the center hole of the temperature-pressed integrated upper end piece 21 after welding, making the outlet wires safer and more convenient.
[0042] The side wall of the warm-pressed integrated main body 22 is a hexagonal notch surface, so that a hexagonal wrench fixture can be used to apply force to the entire device without the need to independently add an additional hexagonal reducer structure, which greatly compresses the height space of the product, making the product more beautiful in appearance and more space-efficient.
[0043] Reference Figure 5 and Figure 6, the bottom diameter of the temperature-pressed integrated lower end piece 23 is smaller than the top diameter. In the temperature-pressed integrated part 2, the bottom diameter of the temperature-pressed integrated upper end piece 21 and the top diameter of the temperature-pressed integrated lower end piece 23 are consistent with the diameter of the temperature-pressed integrated main body 22. A packaging groove 231 is provided at the bottom of the temperature-pressed integrated lower end piece 23, and a second sealing ring 232 is arranged in the packaging groove 231. The welding seal 5 includes a limit end 51 and a connecting end 52 from top to bottom. The diameter of the limit end 51 is larger than the diameter of the connecting end 52, and the diameter of the limit end 51 is consistent with the bottom diameter of the temperature-pressed integrated lower end piece 23. The limit end 51 abuts against the bottom end of the temperature-pressed integrated lower end piece 23, and the limit end 51 abuts against the second sealing ring 232. The sleeve 3 and the temperature probe rod 31 are inserted into the temperature-pressed integrated lower end piece 23 and the welding seal 5.
[0044] The inner diameter of the top end of the union nut 6 is larger than the inner diameter of the bottom end, the inner diameter of the top end is consistent with the diameter of the limit end 51, and the inner diameter of the bottom end is consistent with the diameter of the connection end 52. When the temperature-pressing integrated lower end piece 23, the welding seal and the union nut 6 are connected, the limit end 51 and the bottom end of the temperature-pressing integrated lower end piece 23 abut, the union nut 6 abuts against the bottom of the limit end 51, and the union nut 6 is threadedly connected to the bottom end of the temperature-pressing integrated part 2. The connection end 52 is welded to the tank body of the product to be tested, completing the connection of the adapter between the temperature-pressing integrated intelligent digital display device and the object to be tested. The union nut 6 uses a union hexagonal nut with a hexagonal design, which is convenient for tightening and disassembling with a wrench.
[0045] The temperature-pressed integrated lower end piece 23 is provided with a connecting ring 211 at one end close to the temperature-pressed integrated main body 22. A slot 221 is provided on the bottom side wall of the temperature-pressed integrated main body 22. The side wall of the connecting ring 211 abuts against the side wall of the slot 221. The connection between the temperature-pressed integrated lower end piece 23 and the temperature-pressed integrated main body 22 is achieved by a step-type anti-dislocation method. Laser welding is used for the outer seam. The above method ensures good coaxiality after welding.
[0046] The connecting ring 211 and the card slot 221 adopt the high and low step mode, and a second gap 72 is horizontally arranged between the temperature-pressure integrated lower end piece 23 and the temperature-pressure integrated main body 22, and a first gap 71 is arranged between the outer wall of the sleeve 3 and the inner wall of the temperature-pressure integrated lower end piece 23 / welding seal 5, and a third gap 73 is arranged between the bottom end of the pressure core 4 and the temperature-pressure integrated main body 22. The first gap 71, the second gap 72, and the third gap 73 are connected and together form an air chamber 7. The formation of the air chamber 7 ensures that the pressure source can be transmitted to the pressure core 4, and the collected gas flows in through the large gap of the first gap 71, and the vertically collected gas flows in through the second gap 72 and contacts the pressure core 4 through the third gap 73. The structure of the air chamber 7 realizes the collection of the pressure source by sharing accessories in the case of temperature collection, and it becomes possible to measure the temperature and pressure of the same device at the same time, and the space is extremely compressed and miniaturized, so that the overall proportion effect of the product is very coordinated.
[0047] The implementation principle of the temperature-pressure integrated intelligent digital display device of the present application embodiment is as follows: when assembling the temperature-pressure integrated intelligent digital display device, the assembly steps are as follows: Assembly of the temperature probe 31: Install the sleeve 3 into the temperature-pressed integrated main body 22 from top to bottom, then install the calibrated temperature probe 31 into the sleeve 3, apply silicone to the potting cavity 32 formed by installing the temperature probe 31 to fix it, and laser weld the upper surface of the sleeve 3 and the temperature-pressed integrated main body 22; Assembling the pressure core 4: insert the first sealing ring 42 into the sealing groove 41 of the side wall of the pressure core 4, then press the pressure core 4 into the warm-pressed integrated main body 22, and laser weld the upper surfaces of the pressure core 4 and the warm-pressed integrated main body 22; Assembly of the integrated warm-pressed lower end piece 23 and the integrated warm-pressed main body piece 22: directly insert the center hole of the integrated warm-pressed lower end piece 23 into the sleeve 3, align the integrated warm-pressed lower end piece 23 and the integrated warm-pressed main body piece 22, and laser weld the outer seam; Assembly of the temperature-pressed integrated lower end piece 23, the welding seal 5, and the union nut 6: insert the union nut 6 into the bottom of the limiting end 51 of the welding seal 5 from bottom to top, weld the connecting end 52 of the welding seal 5 to the tank body of the product to be tested, insert the second sealing ring 232 into the packaging groove 231 at the bottom of the temperature-pressed integrated lower end piece 23 from bottom to top, align the limiting end 51 of the welding seal 5 with the bottom of the temperature-pressed integrated lower end piece 23, and then thread the union nut 6 and the temperature-pressed integrated lower end piece 23; Assembling the warm-pressed integrated main body 22 and the warm-pressed integrated upper end 21: directly align the warm-pressed integrated upper end 21 with the warm-pressed integrated main body 22 from top to bottom, and laser welding the outer seam; Assembly of the temperature-pressed integrated upper end piece 21 and the digital display device: insert the first sealing ring 42 from top to bottom into the sealing groove 41 of the temperature-pressed integrated upper end piece 21, screw the assembled temperature-pressed integrated upper end piece 21 directly into the connecting piece 11 of the digital meter body 1 through threads, and screw the locking screw 111 into the locking hole 112 of the connecting piece 11; Through the above steps, the overall connection of the temperature-pressure integrated intelligent digital display device is achieved.
[0048] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.
Claims
1. A temperature and pressure integrated intelligent digital display device, characterized in that: include: A digital meter body (1), wherein a connecting piece (11) is provided at the bottom end of the digital meter body (1); A temperature-pressure integrated part (2), the top end of the temperature-pressure integrated part (2) being threadedly connected to the connecting piece (11), a sleeve (3) and a pressure core (4) being arranged inside the temperature-pressure integrated part (2), a temperature probe rod (31) being placed inside the sleeve (3), and a bottom end of the sleeve (3) extending out of the temperature-pressure integrated part (2); A welding seal (5), the welding seal (5) comprising a limiting end (51) and a connecting end (52), the sleeve (3) being inserted through the welding seal (5), the limiting end (51) being in contact with the bottom end of the temperature-pressing integrated part (2), and the connecting end (52) being used for connecting to a product to be tested; A union nut (6), wherein the union nut (6) is sleeved on the welding seal (5), the union nut (6) is in contact with the bottom of the limit end (51), and the union nut (6) is threadedly connected to the bottom end of the warm-pressed integrated part (2).
2. The temperature-pressure integrated intelligent digital display device according to claim 1, characterized in that: The warm-pressed integrated part (2) comprises a warm-pressed integrated upper end piece (21), a warm-pressed integrated main body piece (22) and a warm-pressed integrated lower end piece (23) which are sequentially connected from top to bottom, the warm-pressed integrated upper end piece (21) being threadedly connected to the connecting piece (11), the top end surface of the sleeve (3) and the top end surface of the pressure core (4) being flush with the upper surface of the warm-pressed integrated main body piece (22), and the warm-pressed integrated lower end piece (23) being abutted against the limiting end (51) and being threadedly connected to the movable joint nut (6).
3. The temperature-pressure integrated intelligent digital display device according to claim 2, characterized in that: The warm-pressed integrated upper end piece (21) and the warm-pressed integrated lower end piece (23) are both provided with a connecting ring (211) at one end close to the warm-pressed integrated main body piece (22), and both ends of the warm-pressed integrated main body piece (22) are provided with a clamping groove (221), the side wall of the connecting ring (211) and the side wall of the clamping groove (221) are in contact with each other, and the bottom of the connecting ring (211) and the bottom of the clamping groove (221) are connected by laser welding.
4. The temperature-pressure integrated intelligent digital display device according to claim 2, characterized in that: The side walls of the connecting piece (11) and the warm-pressed integrated upper end piece (21) are both provided with locking holes (112), and the locking holes (112) are connected with locking screws (111).
5. The temperature-pressure integrated intelligent digital display device according to claim 3, characterized in that: A first gap (71) is vertically arranged between the outer wall of the sleeve (3) and the inner walls of the welding seal (5) and the temperature-pressed integrated lower end piece (23); a second gap (72) is horizontally arranged between the temperature-pressed integrated main body (22) and the temperature-pressed integrated lower end piece (23); a third gap (73) is arranged between the bottom end of the pressure core (4) and the temperature-pressed integrated main body (22); the first gap (71), the second gap (72) and the third gap (73) together form an air chamber (7).
6. The temperature-pressure integrated intelligent digital display device according to claim 3, characterized in that: A first gap (81) is transversely arranged between the warm-pressed integrated main body (22) and the warm-pressed integrated upper end piece (21), and the first gap (81) and a second gap (82) between the inner walls of the warm-pressed integrated upper end piece (21) together form a cable chamber (8).
7. The temperature-pressure integrated intelligent digital display device according to claim 2, characterized in that: The top diameter of the sleeve (3) is larger than the diameter of the barrel; the top of the sleeve (3) and the temperature probe rod (31) form a potting cavity (32); the potting cavity (32) is filled with silica gel; the top surface of the sleeve (3) and the upper surface of the temperature-pressed integrated main body (22) are connected by laser welding.
8. The temperature-pressure integrated intelligent digital display device according to claim 2, characterized in that: The side walls of the pressure core (4) and the warm-pressed integrated upper end piece (21) are both provided with sealing grooves (41), a first sealing ring (42) is arranged in the sealing groove (41), and the top surface of the pressure core (4) and the upper surface of the warm-pressed integrated main body piece (22) are connected by laser welding.
9. The temperature-pressure integrated intelligent digital display device according to claim 2, characterized in that: A packaging groove (231) is provided at the bottom of the warm-pressed integrated lower end piece (23), a second sealing ring (232) is provided in the packaging groove (231), and the limiting end (51) and the second sealing ring (232) are in abutment with each other.
10. The temperature-pressure integrated intelligent digital display device according to claim 1, characterized in that: The digital meter body (1) is provided with an outer cylinder (12), a circuit board and a battery are provided inside the outer cylinder (12), a display screen (15) is provided on the outer cylinder (12), the display screen (15) is electrically connected to the circuit board, and the outer cylinder (12) is connected to an antenna (13).
