A detection device for digital temperature transmitter

Abstract

The present invention relates to the field of digital temperature transmitter testing technology, specifically a detection device for a digital temperature transmitter, including a shell, a working chamber, a stirring chamber, a refrigeration device, a heating device, a guide plate, a stirring device, and a standard thermometer. The shell is provided with a working chamber and a stirring chamber, and the shell is provided with a heating device and a refrigeration device. The working chamber is annular, and the stirring chamber wraps the working chamber. The stirring chamber is connected to the upper and lower sides of the working chamber. Guide plates are provided on the upper and lower sides of the working chamber, and the stirring chamber located below the working chamber is provided with a stirring device. The present invention can avoid the generation of turbulence in the working chamber and the problem of higher temperature above the working chamber due to thermal siphoning of the liquid by moving the liquid in the working chamber of the detection device in a vertical direction, thereby reducing the temperature fluctuation inside the detection device and effectively improving the detection accuracy of the detection device.

Description

Technical Field

[0001] The invention relates to the technical field of digital temperature transmitter testing, in particular to a detection device for a digital temperature transmitter. Background Art

[0002] Digital temperature transmitters can sense temperature changes in a timely manner and transmit signals to control instruments to monitor and control temperature. By monitoring and controlling temperature with digital temperature transmitters, it is possible to ensure that equipment operates within a safe temperature range or improve the stability and reliability of the production process. Therefore, the accuracy of digital temperature transmitters can effectively ensure the safety of equipment operation and the stability and reliability of the production process.

[0003] During the use of digital temperature transmitters, the external environment and its own factors will affect the accuracy of the digital temperature transmitter. For this reason, digital temperature transmitters need to be tested frequently. In production enterprises, constant temperature baths are often used to test digital temperature transmitters. When using a constant temperature bath to test the digital temperature transmitter, the digital temperature transmitter is used to measure the temperature of the liquid inside the constant temperature bath, and then a standard thermometer is used to measure the temperature of the liquid inside the constant temperature bath. By comparing it with the displayed number of the standard thermometer, the error value of the digital temperature transmitter can be detected, and correction can be made at this time to ensure the accuracy of the digital temperature transmitter. The detection accuracy of the constant temperature bath is usually related to the volatility and uniformity of the internal liquid temperature. A stirring chamber and a working chamber are usually set inside the constant temperature bath. The stirring chamber and the working chamber are isolated by a baffle. During the detection process In the process, the paddles inside the stirring chamber rotate, driving the liquid inside the constant temperature bath to circulate between the working chamber and the stirring chamber. The stirred liquid is mixed more evenly, thereby effectively reducing the temperature fluctuation of the liquid inside the constant temperature bath. However, when the liquid inside the stirring chamber flows into the working chamber, the liquid flow direction will change from horizontal to vertical. The change in fluid direction will cause turbulence at the connection between the working chamber and the stirring chamber, and the occurrence of turbulence will cause large temperature fluctuations. Therefore, in order to solve this problem, a utility model with application number CN202121240804.0 provides a constant temperature bath. The utility model improves the internal rectifier grid of the constant temperature bath to improve the stability of the fluid, thereby effectively reducing temperature fluctuations. However, the change in direction of the fluid will have a certain impact on the stability of the fluid, thereby reducing the detection accuracy of the detection device.

[0004] Therefore, in order to improve the stability of the fluid inside the detection device and improve the detection accuracy of the detection device, a detection device for a digital temperature transmitter is proposed. Summary of the invention

[0005] The object of the present invention is to provide a detection device for a digital temperature transmitter. In order to solve the problem that the temperature inside the working chamber fluctuates due to turbulence of the liquid inside the working chamber, thereby affecting the detection accuracy of the detection device, by moving the liquid inside the working chamber of the detection device in a vertical direction, it can avoid the generation of turbulence inside the working chamber and the problem of high temperature above the working chamber due to thermal siphon effect of the liquid, thereby reducing the temperature fluctuation inside the detection device and effectively improving the detection accuracy of the detection device.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A detection device for a digital temperature transmitter comprises a shell, a working chamber, a stirring chamber, a refrigeration device, a heating device, a guide plate, a stirring device, and a standard thermometer. The shell is provided with a working chamber and a stirring chamber, and the shell is provided with a heating device and a refrigeration device. The working chamber is annular, and the stirring chamber wraps the working chamber. The stirring chamber is connected to the upper and lower sides of the working chamber. Guide plates are provided on the upper and lower sides of the working chamber. The stirring chamber located below the working chamber is provided with a stirring device. A standard thermometer is provided inside the working chamber. A mounting component is provided on the side wall of the shell, and the mounting component is used to mount the digital temperature transmitter on the side wall.

[0008] By making the fluid inside the working chamber flow in the vertical direction, turbulence inside the working chamber can be avoided. The fluid flowing in the vertical direction can prevent the temperature above the working chamber from being higher than the temperature below due to the thermal siphon effect of the liquid, thereby preventing the temperature inside the working chamber from fluctuating due to the turbulence of the fluid. Further, when detecting the digital temperature transmitter, the detection accuracy can be avoided from being reduced due to temperature fluctuations. By arranging mounting components on the side wall and installing the digital temperature transmitter through the mounting components, it can be ensured that the digital temperature transmitter can be fully extended into the working chamber, thereby ensuring the accuracy of detecting the accuracy of the digital temperature transmitter.

[0009] Preferably, the mounting component includes a working cylinder, a mounting seat, a seal, a sealing cylinder, a liquid inlet groove, and a connecting groove. The working cylinder is rotatably sealed and connected to the side wall of the shell. The working cylinder is provided with a mounting seat, and the mounting seat is provided with a seal. A sealing cylinder is provided inside the working chamber. The working cylinder extends to the inside of the sealing cylinder, and the sealing cylinder is sleeved on the working cylinder. The working cylinder is provided with a liquid inlet groove, and the sealing cylinder is provided with a connecting groove that cooperates with the liquid inlet groove. A drainage component is provided inside the working cylinder, and the drainage component discharges the liquid inside the working cylinder when the working cylinder rotates along the screwing-out direction. A locking component is provided on the working cylinder, and the locking component is used to lock the working cylinder, and the locking component releases the lock of the working cylinder when the digital temperature transmitter is in contact with the seal.

[0010] By rotating the mounting seat, the liquid inlet groove is connected to the connecting groove, so that the liquid enters the inside of the working cylinder, and then the digital temperature transmitter detects the liquid temperature inside the working chamber, and then by comparing with the standard thermometer, the temperature deviation of the digital temperature transmitter can be detected, so that the detection data of the digital temperature transmitter can be adjusted. This method reduces the temperature fluctuation inside the working chamber, thereby effectively improving the detection accuracy of the digital temperature transmitter after adjustment. The setting of the drain component can discharge the liquid inside the working cylinder, so as to avoid leakage due to liquid residue when disassembling the digital temperature transmitter. The setting of the locking component can connect the liquid inlet groove with the connecting groove only after the digital temperature transmitter is fully installed, so as to avoid leakage caused by incomplete installation of the digital temperature transmitter, thereby ensuring the practicality of the detection device.

[0011] Preferably, the discharge assembly includes an extrusion plate, a through hole, a sealing gasket, a slot, a block, a screw, and a connecting frame. The extrusion plate is slidably mounted inside the liquid inlet groove, and the extrusion plate is in contact with the inner wall of the working cylinder. A through hole is opened on the extrusion plate, and a sealing gasket is provided at the through hole. The sealing cylinder is rotatably mounted on the shell, and a slot is provided on the sealing cylinder. The working cylinder is provided with a block matching the slot. A screw is rotatably mounted on the shell, and a connecting frame is connected between the screw and the extrusion plate. The working cylinder is provided with a one-way valve on one side of the screw, and the direction of the one-way valve flows from the inside of the working cylinder to the outer wall of the working cylinder.

[0012] By setting the extrusion plate and rotatably installing the working cylinder on the shell, when the digital temperature transmitter rotates in the screw-out direction, the sealing cylinder and the working cylinder are driven to rotate at the same time, thereby driving the extrusion plate to rotate, so that the extrusion plate slides along the liquid inlet groove under the action of the screw, so that the extrusion plate squeezes the liquid inside the working cylinder and discharges it along the one-way valve, thereby avoiding the outflow of high-temperature liquid when disassembling the digital temperature transmitter, which may easily cause a safety accident.

[0013] Preferably, the locking assembly includes a locking hole, a push rod, and a locking pin. The mounting seat is provided with a locking hole, a push rod is slidably installed inside the locking hole, and the locking pin is elastically connected to the working cylinder. When the extrusion plate moves along the liquid inlet groove to the maximum stroke, the number of revolutions of the screw is an integer.

[0014] By setting the push rod, when the digital temperature transmitter is completely fitted with the seal, the digital temperature transmitter squeezes the push rod to disengage the lock pin from the lock hole, thereby releasing the lock on the working cylinder. At this time, the lock of the working cylinder is released and the working cylinder can be rotated to connect the liquid inlet groove with the connecting groove. To avoid the problem of liquid leakage caused by the incomplete connection of the digital temperature transmitter, and when the extrusion plate moves to the maximum stroke, the rotation of the working cylinder is restricted. At this time, the liquid is completely discharged into the inside of the working cylinder. At this time, the digital temperature transmitter can be disassembled by continuing to rotate. At this time, disassembling the digital temperature transmitter can prevent liquid from flowing out, thereby preventing high-temperature liquid from flowing out and causing harm to the staff, thereby improving the safety of the detection device. When the extrusion plate moves to the maximum stroke along the liquid inlet groove, the number of turns of the screw is an integer, and the lock pin can be aligned with the lock hole after limiting the rotation freedom of the working cylinder. Then, after disassembling the digital temperature transmitter, it is ensured that the lock pin enters the lock hole, thereby avoiding the problem of liquid leakage when the digital temperature transmitter is installed next time.

[0015] Preferably, the slot is spiral, the spiral direction of the slot is the same as the spiral direction of the screw, the working cylinder is conical, and the side of the working cylinder is inclined along the center of the working cylinder from one side of the screw to the side of the mounting seat, the width of the slot is 2-3mm larger than the width of the block, the extrusion plate extends to the inside of the connecting groove, the sealing cylinder is located on one side of the screw and is provided with a rotating seat, and a tension spring is connected between the rotating seat and the shell.

[0016] The card groove is spiral, and the spiral direction of the card groove is the same as the spiral direction of the screw. The width of the card groove is 2-3mm larger than the width of the card block. When the working cylinder rotates, the sealing cylinder can be driven to move along the axial direction of the working cylinder. The working cylinder is conical, and the side of the working cylinder is inclined from the screw side to the mounting seat side along the center of the working cylinder. When the working cylinder rotates to discharge liquid, the sealing cylinder can squeeze the working cylinder, thereby improving the sealing between the sealing cylinder and the working cylinder, thereby preventing liquid from flowing out. When the working cylinder is installing the digital temperature transmitter, the sealing cylinder can be separated from the working cylinder, thereby preventing the sealing element between the working cylinder and the sealing cylinder from rotating. The parts are damaged by relative friction, thereby effectively improving the service life of the detection device, and the setting of the tension spring can increase the friction between the working cylinder and the sealing cylinder by pulling the tension spring, so that when the working cylinder starts to rotate, the working cylinder and the sealing cylinder rotate synchronously, and the extrusion plate extends to the inside of the connecting groove, which can push the sealing cylinder to move horizontally during the movement of the extrusion plate, so that when the extrusion plate moves to the maximum stroke, the sealing cylinder can rotate relative to the working cylinder, thereby preventing liquid from entering the side of the working cylinder located on the mounting seat, which will result in the inability to discharge this part of the liquid during drainage, and causing liquid to flow out during disassembly, affecting the use of the detection device.

[0017] Preferably, a limiting groove is provided on the sealing cylinder, the limiting groove is spiral, and the spiral direction is the same as the spiral direction of the screw, and a limiting block cooperating with the limiting groove is provided on the shell, the limiting block is located in the vertical diameter direction of the sealing cylinder, and the limiting groove is close to one end of the screw and is in the same radial direction of the sealing cylinder as the connecting groove.

[0018] Through the setting of the limit groove, when installing the digital temperature transmitter, the working cylinder can be locked by relying on the movement of the extrusion plate. At this time, the staff can be prompted to move the extrusion plate to the maximum position, so as to ensure that the liquid inside the working cylinder is completely discharged when the digital temperature transmitter is disassembled, thereby further ensuring the safety of the use of the detection device. The limit block is located in the vertical diameter direction of the sealing cylinder, and the end of the limit groove close to the screw is in the same radial direction of the sealing cylinder as the connecting groove. After locking the working cylinder, the liquid inlet groove can be in the vertical direction, thereby ensuring the uniformity of the fluid, thereby avoiding turbulence inside the working cylinder, resulting in temperature fluctuations inside the working cylinder and reducing the detection accuracy of the detection device.

[0019] Preferably, a plurality of limit rods are annularly rotatably mounted on the extrusion plate, the limit rods are inclined toward the screw rod along the axial direction of the working cylinder, and the sealing gasket is connected to the plurality of limit rods.

[0020] By setting the limit rod, digital temperature transmitters of different specifications can all pass through the through hole. When the extrusion plate moves, the limit rod is limited to rotate by the digital temperature transmitter, so that the rubber ring fits tightly on the digital temperature transmitter. Therefore, when the extrusion plate moves, the accumulated liquid inside the working cylinder can be discharged. For this reason, digital temperature transmitters of different specifications can be detected, thereby improving the practicability of the detection device.

[0021] Preferably, the extrusion plate is hingedly mounted with a baffle on one side of the one-way valve, the baffle rotates in a vertical direction, and the hinged portion is located above the through hole.

[0022] Through the setting of the baffle, when the baffle moves to the end of the digital temperature transmitter, the baffle rotates under the action of gravity to block the passage. At this time, the liquid in the working cylinder cannot flow out along the through hole, thereby avoiding the residual liquid from flowing out and affecting the use of the detection device after the digital temperature transmitter is disassembled. The setting of the tension spring can make the sealing cylinder move by relying on the action of the card slot when the rotation of the sealing cylinder is restricted, and then the connecting groove can be connected with the liquid inlet groove only when the extrusion plate moves to the maximum displacement, thereby avoiding the liquid from flowing out to one side of the sealing pad, thereby avoiding the internal fluid from flowing out during disassembly to cause a safety accident.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. By making the fluid inside the working chamber flow in the vertical direction, turbulence inside the working chamber is avoided, and the temperature above the working chamber is prevented from being higher than the temperature below due to the thermal siphon effect, thereby avoiding the temperature inside the working chamber from fluctuating due to the turbulence of the fluid and the thermal siphon. By providing a mounting component with a working cylinder and relying on the rotational power of the digital temperature transmitter, the liquid inside the working chamber enters the working cylinder, and then when detecting the digital temperature transmitter, the problem of reduced detection accuracy due to temperature fluctuation is avoided, thereby ensuring the accuracy of the corrected digital temperature sensor.

[0025] 2. By setting up a drainage component, the working cylinder is rotated when the digital temperature transmitter is disassembled, and the liquid inside the working cylinder is discharged by relying on the rotational power of the working cylinder. After the digital temperature transmitter is disassembled, the high-temperature liquid inside the detection device cannot flow out, thereby ensuring the safety of the detection device when in use.

[0026] 3. By setting a locking assembly and relying on the power for installing and removing the digital temperature transmitter, the digital temperature transmitter can be installed and removed only when the digital temperature transmitter is completely installed or the liquid inside the working cylinder is completely discharged, so as to avoid the internal liquid flowing out when installing or removing the digital temperature transmitter and affecting the normal use of the inspection device.

[0027] 4. By setting the limit block and the limit groove, after completing the installation of the digital temperature transmitter, the liquid inlet and the liquid outlet of the working cylinder are positioned so that both the liquid inlet and the liquid outlet are in the vertical direction, thereby ensuring the problem of the fluid inside the working cylinder and avoiding turbulence, thereby further reducing the fluctuation of the internal temperature of the detection device and ensuring the detection accuracy of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the digital temperature transmitter of the present invention which is not completely installed;

[0029] Figure 2 for Figure 1 Cross-section at AA;

[0030] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0031] Figure 4 This is a cross-sectional view of the state where the digital temperature transmitter is detected at the beginning of the present invention;

[0032] Figure 5 for Figure 4 A partial enlarged view of point C in the middle;

[0033] Figure 6 for Figure 4 A partial enlarged view of point D in the middle;

[0034] Figure 7 This is a cross-sectional view of the state when the digital temperature transmitter is disassembled according to the present invention;

[0035] Figure 8 for Figure 7 A partial enlarged view of point E in the middle;

[0036] Fig. 9 for Figure 7 A partial enlarged view of point F in the middle;

[0037] Fig.10 An exploded view of the installation components of the present invention;

[0038] Fig.11 for Fig.10 Cross-section at GG.

[0039] In the figure: 1. shell; 2. working chamber; 21. standard thermometer; 3. stirring chamber; 4. guide plate; 5. stirring device; 6. installation parts; 61. working cylinder; 62. mounting seat; 63. sealing member; 64. sealing cylinder; 65. liquid inlet groove; 66. connecting groove; 7. liquid discharge assembly; 71. extrusion plate; 72. through hole; 73. sealing gasket; 74. card slot; 75. card block; 76. screw; 77. connecting frame; 78. one-way valve; 8. locking assembly; 81. locking hole; 82. push rod; 83. locking pin; 9. limit groove; 10. limit block; 11. limit rod; 12. baffle; 13. rotating seat; 14. tension spring; 15. digital temperature transmitter; 151. installation part; 152. detection part. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The present invention provides a detection device for a digital temperature transmitter, and the technical solution is as follows: Figures 1 to 6, including a shell 1, a working chamber 2 and a stirring chamber 3 are provided inside the shell 1, the stirring chamber 3 wraps the working chamber 2, and the upper and lower sides of the working chamber 2 are connected to the stirring chamber 3, the upper and lower sides of the working chamber 2 are provided with guide plates 4, the stirring chamber 3 below the working chamber 2 is equipped with a stirring device 5, a heating device and a cooling device are provided inside the stirring chamber 3, the heating device uses a heating rod for heating, the cooling device uses a condenser for cooling, the stirring device 5 uses a motor to drive a propeller blade for stirring, the side wall of the shell 1 is provided with a mounting component 6, the mounting component 6 includes a working cylinder 61 rotatably mounted on the shell 1, and the shell 1 is provided with a mounting component 6. A sealing cylinder 64 is connected, and the sealing cylinder 64 is sleeved on the working cylinder 61. The working cylinder 61 is detachably connected with a mounting seat 62, and a connecting thread is arranged inside the mounting seat 62. A liquid inlet groove 65 is provided on the working cylinder 61, and a connecting groove 66 matching the liquid inlet groove 65 is provided on the sealing cylinder 64. A sealing member 63 is provided on the mounting seat 62, and the sealing member 63 adopts a sealing ring; when in use, the mounting portion 151 of the digital temperature transmitter 15 is threadedly connected to the mounting seat 62. During the connection process, the working cylinder 61 and the sealing cylinder 64 are relatively rotated by rotating the power when the digital temperature transmitter 15 is installed. , and then the liquid inlet groove 65 cooperates with the connecting groove 66. At this time, the working cylinder 61 is opened, and the liquid inside the working chamber 2 enters the working cylinder 61. At this time, the digital temperature transmitter 15 can detect the liquid temperature inside the working chamber 2. By comparing it with the temperature of the standard thermometer 21, the digital temperature transmitter 15 can be detected. During the detection process, the fluid inside the working chamber 2 flows in the vertical direction to avoid the occurrence of turbulence inside the working chamber 2. The fluid flows in the vertical direction to avoid the liquid from having a higher temperature above the working chamber 2 than below due to the thermal siphon effect, thereby avoiding the inside of the working chamber 2. The temperature fluctuates due to the turbulence of the fluid, and the detection portion 152 of the digital temperature transmitter 15 is only in contact with the liquid inside the working chamber 2. Therefore, when detecting the digital temperature transmitter 15, the problem of reduced detection accuracy due to temperature fluctuations is avoided, thereby ensuring the accuracy of the corrected digital temperature sensor; when disassembling the digital temperature transmitter 15, the sealing cylinder 64 blocks the liquid inlet groove 65 by rotating the working cylinder 61, thereby preventing the liquid inside the working chamber 2 from flowing out to the outside of the detection device after the digital temperature transmitter 15 is disassembled, thereby preventing liquid leakage from affecting the normal use of the detection device.

[0042] refer to Figures 2 to 6 , Fig.10 , Fig.11, a liquid discharge assembly 7 is provided inside the working cylinder 61, and the liquid discharge assembly 7 includes a squeeze plate 71 slidably mounted inside the liquid inlet groove 65, a through hole 72 is provided on the squeeze plate 71, and a sealing gasket 73 is provided at the through hole 72 of the squeeze plate 71, and a screw 76 is threadedly connected to the housing 1, and the squeeze plate 71 is connected to the screw 76 through a connecting frame 77; when installing the digital temperature transmitter 15, the detection part 152 passes through the through hole 72, so that the detection part 152 fits with the sealing gasket 73, so as to prevent the liquid from flowing along the through hole 72 to the working cylinder 61 located at the mounting seat 62 When the digital temperature transmitter 15 is disassembled, the working cylinder 61 rotates in the unscrewing direction (the unscrewing direction is indicated by the w direction in the figure); a block 75 is provided on the working cylinder 61, and a groove 74 cooperating with the block 75 is provided on the sealing cylinder 64; during the rotation of the working cylinder 61, the block 75 moves inside the groove 74, and when it moves to the maximum displacement of the groove 74, the block 75 pushes the sealing cylinder 64 to rotate at the same time, and at this time the sealing cylinder 64 completely blocks the liquid inlet groove 65, and at this time the liquid in the working chamber 2 cannot enter the working cylinder 61, and as the working cylinder 61 rotates, the sealing cylinder 64 completely blocks the liquid inlet groove 65, and at this time the liquid in the working chamber 2 cannot enter the working cylinder 61. The screw 76 is continuously rotated, driving the screw 76 to continuously rotate, causing the screw 76 to move toward the side away from the mounting seat 62, thereby driving the extrusion plate 71 to squeeze the liquid inside the working cylinder 61; the working cylinder 61 is provided with a one-way valve 78 on one side of the screw 76, and the direction of the one-way valve 78 flows from the inside of the working cylinder 61 to the outer wall of the working cylinder 61; the liquid is squeezed by the extrusion plate 71, and the liquid can flow out along the one-way valve 78 at this time, thereby discharging the liquid inside the working cylinder 61; a plurality of limit rods 11 are annularly mounted on the extrusion plate 71, and the limit rods 11 are rotatably mounted along the axis of the working cylinder 61 toward the screw 76 The sealing gasket 73 is tilted and connected to multiple limit rods 11. When the digital temperature transmitter 15 is installed, the detection part 152 pushes the multiple limit rods 11 to rotate, and then relies on the squeezing of the liquid inside the working cylinder 61 to make the limit rods 11 swing toward the detection part 152, so that the sealing gasket 73 fits on the detection part 152, and then when installing digital temperature transmitters 15 of different specifications, the sealing gasket 73 can be fitted with detection parts 152 of different sizes, so as to realize the detection of digital temperature transmitters 15 of different specifications, thereby improving the practicability of the detection device.

[0043] refer to Figures 2 to 10, a locking assembly 8 is provided on the working cylinder 61, and the locking assembly 8 includes a locking hole 81 opened on the mounting seat 62, a push rod 82 is provided inside the locking hole 81, and a locking pin 83 is elastically connected to the housing 1; before installing the digital temperature transmitter 15, the locking pin 83 enters the locking hole 81, and the working cylinder 61 cannot rotate at this time. Therefore, when installing the digital temperature transmitter 15, but when the mounting portion 151 is completely in contact with the sealing member 63, the mounting portion 151 will squeeze the push rod 82, and the push rod 82 will push the locking pin 83 out of the locking hole 81, and the working cylinder 61 can rotate at this time; continue to rotate in the reverse direction along the screw-out direction, and the working cylinder 61 The rotation of the liquid inlet groove 65 will make the connecting groove 66 cooperate with each other, so that the working cylinder 61 is opened, and the liquid enters the working cylinder 61 to detect the digital temperature transmitter 15. After the liquid inlet groove 65 and the connecting groove 66 are fully matched, the sealing cylinder 64 rotates simultaneously with the working cylinder 61 under the push of the block 75, so that the screw 76 moves toward the mounting seat 62, so that the extrusion plate 71 is reset, and the liquid inside the working cylinder 61 can be discharged during disassembly and installation; when the extrusion plate 71 moves to the maximum stroke along the liquid inlet groove 65, the screw 76 rotates 20 times; when the digital temperature transmitter 15 is disassembled, the extrusion plate 7 1 moves toward the screw 76. When the extrusion plate 71 moves to the maximum stroke, the rotation of the working cylinder 61 can be limited. At this time, the liquid in the working cylinder 61 is discharged. At this time, when the digital temperature transmitter 15 continues to rotate in the direction of screwing out, the digital temperature transmitter 15 can be disassembled. When disassembling the digital temperature transmitter 15, the liquid in the working cylinder 61 can be completely discharged before the digital temperature transmitter 15 can be disassembled, so as to avoid operating errors of the staff. When there is liquid in the working cylinder 61 or the liquid inlet groove 65 is closed, the staff disassembles the digital temperature transmitter 15 to cause leakage, and the detection device There is high-temperature liquid in the part, and the leakage of the liquid is dangerous, so as to avoid safety hazards caused by the leakage of high-temperature liquid. When disassembling the working cylinder 61, the working cylinder 61 rotates an integer number of times to make the locking pin 83 located at the locking hole 81. Therefore, after disassembling the digital temperature transmitter 15, the locking pin 83 can enter the locking hole 81 under the action of the elastic connection, thereby locking the working cylinder 61 again, so as to avoid the working cylinder 61 not being locked. When the digital temperature transmitter 15 is installed next time, the digital temperature transmitter 15 has not yet contacted the sealing member 63, so that the working cylinder 61 is opened, thereby causing liquid leakage and affecting the use of the detection device.

[0044] refer to Figures 2 to 11The locking groove 74 is spiral, and the spiral direction of the locking groove 74 is the same as the spiral direction of the screw rod 76. The working cylinder 61 is conical, and the side surface of the working cylinder 61 is inclined along the center of the working cylinder 61 from the side of the screw rod 76 to the side of the mounting seat 62, and the width of the locking groove 74 is 3mm greater than the width of the block 75; when the block 75 rotates along the locking groove 74, the block 75 pushes the sealing cylinder 64 to translate along the axial direction, and when the block 75 rotates in the opposite direction along the screwing out direction, the sealing cylinder 64 can be pushed away from the working cylinder 61, thereby reducing the extrusion force on the sealing element between the working cylinder 61 and the sealing cylinder 64, and then when the working cylinder 61 and the sealing cylinder 64 produce relative displacement, the wear on the sealing element is reduced, and the service life of the detection device is effectively improved; when the block 75 rotates in the screwing out direction, the block 75 pushes the sealing cylinder 64 to fit the working cylinder 61, so that the sealing cylinder 64 squeezes the sealing element, thereby improving the sealing between the sealing cylinder 64 and the working cylinder 61, thereby avoiding leakage when the detection device is idle.

[0045] refer to Figures 2 to 11, a limiting groove 9 is provided on the sealing cylinder 64, and the limiting groove 9 is spiral, and the spiral direction is the same as the spiral direction of the screw 76, and a limiting block 10 cooperating with the limiting groove 9 is provided on the housing 1; through the setting of the limiting groove 9, when the working cylinder 61 rotates in the opposite direction of the screw-out direction, the rotating seat 13 moves toward the side of the limiting block 10 by relying on the push of the clamping block 75, and at this time, the limiting block 10 gradually enters the limiting groove 9, thereby limiting the rotation of the limiting groove 9; the limiting block 10 is located in the vertical diameter direction of the sealing cylinder 64, and the end of the limiting groove 9 close to the screw 76 is in the same radial direction of the sealing cylinder 64 as the connecting groove 66; after the limiting block 10 enters the limiting groove 9, the limiting groove 9 limits the rotation of the sealing cylinder 64. After the block 75 is fitted with the slot 74, the freedom of the working cylinder 61 to rotate in the reverse direction in the screwing-out direction is limited, thereby locking the working cylinder 61. At this time, the two liquid inlet grooves 65 are on the same plane in the vertical direction, thereby making the fluid inside the working cylinder 61 flow in the vertical direction, thereby avoiding the problem of turbulence inside the working cylinder 61, causing the temperature inside the working cylinder 61 to fluctuate and causing the detection accuracy of the detection device to decrease; the extrusion plate 71 extends to the inside of the connecting groove 66, and the sealing cylinder 64 is provided with a rotating seat 13 on one side of the screw 76, and a tension spring 14 is connected between the rotating seat 13 and the housing 1; through the pulling of the tension spring 14, this When the working cylinder 61 is in the state of being rotated in the opposite direction of the screwing-out direction, a large friction force is generated between the working cylinder 61 and the sealing cylinder 64. Therefore, when the working cylinder 61 rotates in the opposite direction of the screwing-out direction, the working cylinder 61 and the sealing cylinder 64 rotate synchronously. When the extrusion plate 71 moves, the extrusion plate 71 squeezes the sealing cylinder 64 to move in the direction of the limit block 10, thereby driving the sealing cylinder 64 to translate and rotate under the action of the clamping block 75. Therefore, the working cylinder 61 opens when the extrusion plate 71 moves to the maximum displacement position, thereby preventing liquid from entering the side of the working cylinder 61 located on the mounting seat 62, thereby causing this part of the liquid to be unable to be discharged during drainage, and causing liquid to flow out during the disassembly process, affecting the use of the detection device; the extrusion plate 71 is located on one side of the one-way valve 78 A baffle 12 is hingedly installed, and the baffle 12 rotates in the vertical direction, and the hinged portion is located above the through hole 72; when the digital temperature transmitter 15 is installed, the detection portion 152 pushes open the baffle 12, and the rotation of the baffle 12 is limited by the detection portion 152, and when the digital temperature transmitter 15 is disassembled, as the extrusion plate 71 moves, the baffle 12 is separated from the restriction of the detection portion 152, thereby rotating and blocking the through hole 72 under the action of gravity, and after being separated from the detection portion 152, the liquid can still be discharged. Therefore, when detecting digital temperature transmitters 15 of different lengths, the internal liquid can also be completely discharged, thereby preventing liquid leakage from affecting the use of the detection device.

[0046] Working principle: Reference Figures 1 to 11 Before operation, check whether the detection device has any leakage. If leakage occurs, repair it in time.

[0047] During operation, the detection portion 152 is extended into the working cylinder 61, and the detection portion 152 is passed through the through hole 72, and then the mounting portion 151 is connected to the mounting seat 62. When connected, the digital temperature transmitter 15 is rotated in the reverse direction along the screwing-out direction. At this time, since the locking pin 83 is located inside the pin hole, the working cylinder 61 cannot be rotated. At this time, the digital temperature transmitter 15 is continuously rotated. When the digital temperature transmitter 15 contacts the sealing member 63, the digital temperature transmitter 15 squeezes the push rod 82, and the locking pin 83 is squeezed by the push rod 82, so that the locking pin 83 is separated from the locking hole 81, and then the digital temperature transmitter 15 is continuously rotated. At this time, the working cylinder 61 can be driven to rotate, and at this time, the sealing cylinder 64 is pulled by the tension of the tension spring 14. The working cylinder 61 is squeezed, and the rotation of the working cylinder 61 can drive the sealing cylinder 64 to rotate synchronously. At this time, the sealing cylinder 64 still blocks the liquid inlet groove 65. During the rotation of the working cylinder 61, the screw 76 rotates and moves along the direction of the mounting seat 62, thereby pushing the squeezing plate 71 to slide inside the working cylinder 61. During the movement of the squeezing plate 71, the detection part 152 pushes the baffle 12 to open the through hole 72. When the squeezing plate 71 moves to fit with the connecting groove 66, the squeezing plate 71 squeezes the sealing cylinder 64, so that the sealing cylinder 64 translates along the direction of the mounting seat 62, and the working cylinder 61 generates relative rotation under the action of the block 75 and the slot 74, thereby causing the working cylinder 61 and the sealing cylinder 64 to generate relative rotation displacement, thereby causing the liquid inlet groove 65 to be moved. The liquid tank 65 cooperates with the connecting tank 66, and the liquid can enter the inside of the working cylinder 61 at this time. At this time, the limit block 10 enters into the limit tank 9 and limits the rotation of the sealing cylinder 64. At this time, the two connecting tanks 66 are in a vertical plane. As the working cylinder 61 rotates, the block 75 moves to the maximum displacement of the slot 74. At this time, the liquid inlet tank 65 is in a vertical plane and limits the rotation of the working cylinder 61. At this time, the digital temperature transmitter 15 is fully installed. At this time, the cooling device or the refrigeration device can be turned on to change the liquid temperature, and the stirring device 5 can be turned on to make the liquid in the working chamber 2 flow in the vertical direction. Since the liquid flows in the vertical direction, the turbulence in the working chamber 2 is avoided, and the fluid flows in the vertical direction, which can avoid Due to the thermal siphon effect, the temperature above the working chamber 2 is higher than that below, thereby preventing the internal temperature of the working chamber 2 from fluctuating due to the turbulence of the fluid. Furthermore, when detecting the digital temperature transmitter 15, the detection accuracy is avoided to be reduced due to temperature fluctuations. The liquid inlet groove 65 is in a vertical plane, so that the fluid inside the working cylinder 61 flows in a vertical direction, thereby preventing turbulence inside the working cylinder 61, causing the internal temperature of the working cylinder 61 to fluctuate and causing the detection accuracy of the detection device to be reduced. When the liquid temperature reaches the set temperature, the error value of the digital temperature transmitter 15 can be detected by comparing the temperature value of the standard thermometer 21.

[0048] After completing the detection of the digital temperature transmitter 15, turn off the refrigeration device or heating device and the stirring device 5, and then the digital temperature transmitter 15 can be disassembled. When disassembling the digital temperature transmitter 15, rotate the digital temperature transmitter 15 in the direction of screwing out, and at this time, the block 75 is stuck inside and rotates, thereby generating relative displacement with the sealing cylinder 64, thereby pushing the sealing cylinder 64 to fit the working cylinder 61, thereby preventing the liquid inside the working chamber 2 from entering the inside of the working cylinder 61. As the digital temperature transmitter 15 continues to rotate, the screw 76 moves in a direction away from the mounting seat 62, thereby squeezing the internal liquid of the working chamber to be discharged along the one-way valve 78. Due to the setting of the limit rod 11, the sealing gasket 73 cannot be flipped, thereby continuously maintaining the sealing between the extrusion plate 71 and the detection part 152. As the extrusion plate 71 moves, the baffle 12 separates from the detection The measuring part 152 is limited and rotates under the action of gravity, thereby blocking the through hole 72 again. At this time, the baffle 12 fits with the extrusion plate 71 under the pressure of the liquid, thereby preventing the liquid from flowing out along the through hole 72. As the extrusion plate 71 moves, the extrusion plate 71 fits with the other side of the liquid inlet groove 65. At this time, the freedom of the working cylinder 61 to rotate in the screw-out direction is limited, thereby limiting the rotation of the working cylinder 61. At this time, the digital temperature transmitter 15 can be screwed out by continuing to rotate the digital temperature transmitter 15, thereby completing the disassembly of the digital temperature transmitter 15. At this time, the locking pin 83 enters the locking hole 81 again under the action of the elastic connection to lock the working cylinder 61, thereby avoiding the problem of leakage when the digital temperature transmitter 15 is opened due to the failure of the digital temperature transmitter 15 to fit the sealing member 63 when the digital temperature transmitter 15 is installed next time, thereby ensuring the normal use of the detection device.

[0049] The present invention enables the liquid inside the working chamber 2 of the detection device to move in the vertical direction, thereby avoiding the generation of turbulence inside the working chamber 2 and avoiding the problem of high temperature above the working chamber 2 due to thermal siphoning of the liquid, thereby reducing temperature fluctuations inside the detection device and effectively improving the detection accuracy of the detection device.

[0050] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A detection device for a digital temperature transmitter, characterized in that: The invention comprises a shell (1), a working chamber (2), a stirring chamber (3), a refrigeration device, a heating device, a guide plate (4), a stirring device (5), and a standard thermometer (21), wherein the shell (1) is provided with a working chamber (2) and a stirring chamber (3), the shell (1) is provided with a heating device and a refrigeration device, the working chamber (2) is annular, and the stirring chamber (3) wraps around the working chamber (2), the stirring chamber (3) is connected to the working chamber (2) at both upper and lower sides, the working chamber (2) is provided with guide plates (4) at both upper and lower sides, the stirring chamber (3) located below the working chamber (2) is provided with a stirring device (5), the working chamber (2) is provided with a standard thermometer (21), and a mounting component (6) is provided on the side wall of the shell (1), the mounting component (6) is used to mount a digital temperature transmitter (15) on the side wall; The mounting component (6) comprises a working cylinder (61), a mounting seat (62), a sealing member (63), a sealing cylinder (64), a liquid inlet groove (65), and a connecting groove (66); the working cylinder (61) is rotatably sealedly connected to a side wall of the housing (1); the working cylinder (61) is provided with a mounting seat (62); the mounting seat (62) is provided with a sealing member (63); a sealing cylinder (64) is provided inside the working chamber (2); the working cylinder (61) extends into the interior of the sealing cylinder (64); the sealing cylinder (64) is sleeved on the working cylinder (61); the working cylinder ( A liquid inlet groove (65) is provided on the working cylinder (61), a connecting groove (66) cooperating with the liquid inlet groove (65) is provided on the sealing cylinder (64), a liquid discharge assembly (7) is provided inside the working cylinder (61), and the liquid discharge assembly (7) discharges the liquid inside the working cylinder (61) when the working cylinder (61) rotates in the screw-out direction, and a locking assembly (8) is provided on the working cylinder (61), and the locking assembly (8) is used to lock the working cylinder (61), and the locking assembly (8) releases the locking of the working cylinder (61) when the digital temperature transmitter (15) and the sealing member (63) are in contact with each other.

2. A detection device for a digital temperature transmitter according to claim 1, characterized in that: The liquid discharge assembly (7) comprises an extrusion plate (71), a through hole (72), a sealing gasket (73), a slot (74), a block (75), a screw (76), and a connecting frame (77). The extrusion plate (71) is slidably mounted on the extrusion plate (71) inside the liquid inlet groove (65), and the extrusion plate (71) is in contact with the inner wall of the working cylinder (61). The extrusion plate (71) is provided with a through hole (72), and a sealing gasket (73) is provided at the through hole (72). The sealing cylinder (64) is rotatably mounted on the extrusion plate (71). The sealing cylinder (64) is provided with a slot (74), the working cylinder (61) is provided with a block (75) matched with the slot (74), a screw (76) is rotatably mounted on the housing (1), a connecting frame (77) is connected between the screw (76) and the extrusion plate (71), and the working cylinder (61) is provided with a one-way valve (78) on one side of the screw (76), and the direction of the one-way valve (78) flows along the inside of the working cylinder (61) toward the outer wall of the working cylinder (61).

3. A detection device for a digital temperature transmitter according to claim 2, characterized in that: The locking assembly (8) comprises a locking hole (81), a push rod (82), and a locking pin (83); the mounting seat (62) is provided with a locking hole (81); a push rod (82) is slidably mounted inside the locking hole (81); the locking pin (83) is elastically connected to the working cylinder (61); when the extrusion plate (71) moves along the liquid inlet groove (65) to a maximum stroke, the number of revolutions of the screw rod (76) is an integer.

4. A detection device for a digital temperature transmitter according to claim 2, characterized in that: The slot (74) is spiral-shaped, and the spiral direction of the slot (74) is the same as the spiral direction of the screw (76). The working cylinder (61) is conical, and the side surface of the working cylinder (61) is inclined from the side of the screw (76) to the side of the mounting seat (62) along the center of the working cylinder (61). The width of the slot (74) is 2-3 mm greater than the width of the block (75). The extrusion plate (71) extends to the inside of the connecting groove (66). The sealing cylinder (64) is provided with a rotating seat (13) on one side of the screw (76), and a tension spring (14) is connected between the rotating seat (13) and the housing (1).

5. A detection device for a digital temperature transmitter according to claim 4, characterized in that: The sealing cylinder (64) is provided with a limit groove (9), the limit groove (9) is spiral, and the spiral direction is the same as the spiral direction of the screw (76), the housing (1) is provided with a limit block (10) that cooperates with the limit groove (9), the limit block (10) is located in the vertical radial direction of the sealing cylinder (64), and the end of the limit groove (9) close to the screw (76) is located in the same radial direction of the sealing cylinder (64) as the connecting groove (66).

6. A detection device for a digital temperature transmitter according to claim 2, characterized in that: A plurality of limit rods (11) are rotatably mounted on the extrusion plate (71), the limit rods (11) being inclined toward the screw rod (76) along the axial direction of the working cylinder (61), and the sealing gasket (73) is connected to the plurality of limit rods (11).

7. A detection device for a digital temperature transmitter according to claim 2, characterized in that: The extrusion plate (71) is hingedly mounted with a baffle (12) on one side of the one-way valve (78); the baffle (12) rotates in a vertical direction, and the hinged portion is located above the through hole (72).

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