An evaporator for monitoring water radiation

Abstract

This invention proposes an evaporator for water radiation monitoring, belonging to the field of water radiation monitoring technology. The evaporator includes: an evaporation chamber, which is square in shape, with injection pipes at each of the four corners; a rotating support, rotatably mounted inside the evaporation chamber, with four centrally symmetrical telescopic support arms on its outer side, each telescopic support arm having a placement ring mounted on its outer end; a rotating shaft, rotatably mounted inside the evaporation chamber and drivingly connected to the telescopic support arms, with a rotary motor connected to its bottom end; and an arm control assembly, one for each of the four telescopic support arms, with its transmission mechanism between the telescopic support arms and the rotating shaft. This invention has the advantages of high evaporation efficiency and automatic liquid injection within the evaporation chamber.

Description

Technical Field

[0001] This invention relates to the field of water radiation monitoring technology, and specifically to an evaporator for water radiation monitoring. Background Technology

[0002] Currently, evaporators and ashing instruments are widely used in water radiation monitoring. However, when processing water samples with current evaporators, the static cavity structure of the evaporation chamber necessitates multiple individual tests to ensure accurate detection. Each test requires manual loading of the water sample into a sample container, placing the container into the evaporation chamber, closing the chamber lid, and then starting the evaporator. This process is cumbersome, and the water is injected into the sample container from outside the evaporation chamber, making it prone to spillage or contamination during container transfer, thus affecting the detection results. Therefore, this application provides an evaporator for water radiation monitoring. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention proposes an evaporator for water radiation monitoring with high evaporation efficiency and automatic liquid injection function in the evaporation chamber.

[0004] The technical solution of this invention is implemented as follows:

[0005] An evaporator for monitoring water radiation includes:

[0006] The evaporation chamber is square in shape, and liquid injection pipes are provided at the four corners of the evaporation chamber.

[0007] A rotating bracket is rotatably mounted inside the evaporation chamber. Four telescopic support arms are provided on the outer side of the rotating bracket in a centrally symmetrical manner, and a placement ring is installed on the outer end of each telescopic support arm.

[0008] A rotating shaft is rotatably mounted inside the evaporation chamber and is connected to a telescopic support arm for transmission. A rotary motor is connected to the bottom end of the rotating shaft.

[0009] The arm control assembly is provided for each of the four telescopic support arms. Its transmission is located between the telescopic support arm and the rotating shaft. It is used to control the telescopic support arm to extend to its longest state to move the placement ring below the injection tube, or to control the telescopic support arm to stay in its shortest state to drive the placement ring to make a circular motion.

[0010] Furthermore, the telescopic support arm includes an outer sleeve, an inner sleeve, a transverse strip groove, and a transverse groove slider. The inner end of the outer sleeve is fixedly connected to the outer side of the rotating bracket. The inner sleeve is slidably inserted into the outer sleeve along the axial direction, and the outer end of the inner sleeve passes through the outer sleeve and is connected to a placement ring. The transverse strip groove is opened at the bottom of the outer sleeve. The transverse groove slider is slidably disposed in the transverse strip groove, and the top end of the transverse groove slider is fixedly connected to the bottom of the inner sleeve.

[0011] Furthermore, the arm control assembly includes a threaded groove formed on the inner end of the inner sleeve, a threaded rod threadedly connected in the threaded groove, and a longitudinal bevel gear fixedly installed on the inner end of the threaded rod. The inner end of the threaded rod passes through the rotating bracket, the longitudinal bevel gear is located in the inner cavity of the rotating shaft bracket, and the inner end of the threaded rod is rotatably connected to the rotating bracket.

[0012] Furthermore, the arm control assembly also includes an upper transverse bevel gear, a lower transverse bevel gear, an upper bushing, a lower bushing, an upper locking structure, and a lower locking structure. The upper transverse bevel gear and the lower transverse bevel gear are respectively fixedly sleeved on the upper bushing and the lower bushing. The opposite ends of the upper bushing and the lower bushing are rotatably connected, and both the upper bushing and the lower bushing are rotatably sleeved on the outside of the rotating shaft. The upper transverse bevel gear and the lower transverse bevel gear are respectively meshed on the top and bottom of the longitudinal bevel gear. The upper locking structure is set between the rotating shaft and the upper bushing, and the lower locking structure is set between the rotating shaft and the lower bushing.

[0013] The rotating shaft is configured to be displaceable in the height direction. When the rotating shaft is at its highest position, the upper locking structure locks the upper bushing to the rotating shaft, and the lower bushing is separated from the rotating shaft. When the rotating shaft is at its lowest position, the lower locking structure locks the lower bushing to the rotating shaft, and the upper bushing is separated from the rotating shaft.

[0014] Furthermore, the bottom end of the rotating shaft is provided with polygonal lifting grooves distributed along the axial direction, and a polygonal slider is slidably disposed in the polygonal lifting grooves. The bottom end of the polygonal slider is connected to the power shaft of the rotating motor.

[0015] Furthermore, both the upper and lower locking structures are configured to include an annular groove, an arc-shaped locking plate, an inclined surface, and an inclined groove. The annular groove is formed on the inner wall of the upper and lower bushings and extends through the inner wall surfaces of the upper and lower bushings. The arc-shaped locking plate is radially displaceable within the annular groove. The inclined surface is formed on the surface of the rotating shaft and corresponds to the arc-shaped locking plate. The inclined groove is formed on the inclined surface, and the inner end of the arc-shaped locking plate is slidably positioned within the inclined groove. The two inclined surfaces corresponding to the upper and lower bushings are arranged in opposite directions.

[0016] Furthermore, a support rod is vertically arranged on the inner top wall of the evaporation chamber. The bottom end of the support rod is movably sleeved on the top end of the rotating bracket, and the top end of the rotating shaft is movably inserted into the bottom end of the support rod. The arm control assembly also includes a sliding sleeve rotatably sleeved on the outside of the rotating shaft, longitudinal through-slot sliders fixedly arranged on both sides of the sliding sleeve, longitudinal strip through-slots opened on both sides of the support rod, lifting rods fixedly arranged on the longitudinal through-slot sliders, a lifting plate fixedly arranged between the top ends of the two lifting rods, and a knob threadedly connected to the lifting plate for adjusting the height of the rotating shaft. The top end of the lifting rod passes through the support rod and the inner top wall of the evaporation chamber in sequence and extends to the outside of the evaporation chamber. The two longitudinal through-slot sliders are respectively slidably arranged in the two longitudinal strip through-slots.

[0017] Furthermore, the two sides of the transverse through-slot slider are flat, and the bottom end of the transverse through-slot slider is provided with a toothed structure. The arm control assembly also includes a limiting guide rail and a telescopic ratchet. The limiting guide rail is provided in the height direction corresponding to the two sides of the transverse through-slot slider. The transverse through-slot slider is located in the track groove of the limiting guide rail in the rotation direction of the rotation axis. The outer end of the limiting guide rail is located outside the transverse strip through-slot. When the transverse through-slot slider is located at the inner end of the transverse strip through-slot, it is located radially outside the limiting guide rail and on one side of the telescopic ratchet.

[0018] When the rotating shaft is at its lowest position, the transverse through-slot slider passes over the telescopic ratchet by pressing down on it; when the rotating shaft is at its highest position, the telescopic ratchet blocks the transverse through-slot slider, causing the transverse through-slot slider to enter the limit guide rail and the telescopic support arm to extend.

[0019] Furthermore, a receiving groove is provided on the inner top wall of the evaporation chamber, and a sealing plate is provided at the opening of the receiving groove. The top of the sealing plate is rotatably installed at one end of the receiving groove, and the liquid injection pipe is installed on the inner side of the sealing plate. The top of the liquid injection pipe is connected to a liquid storage tank through a flexible tube. A plate control structure is provided on the sealing plate, and the plate control structure is used to drive the sealing plate to rotate to a vertical state when the telescopic support arm is extended by the placement ring.

[0020] Furthermore, the plate control structure includes a rotary torsion spring disposed between the top of the sealing plate and the storage groove, a pulling steel wire connected to the outer side of the sealing plate at the top, and a push rod slidably disposed on the inner side wall of the evaporation chamber, wherein the bottom end of the pulling steel wire is connected to the push rod.

[0021] The present invention has the following beneficial effects:

[0022] 1. By mounting the placement ring on the rotating bracket via a telescopic support arm and setting an injection tube inside the evaporation chamber, the sample container can be automatically injected with the sample solution to be tested after it is placed on the placement ring. This eliminates the need for manual injection of the sample solution into each sample container before placing it into the evaporation chamber, making it more convenient for staff to use and improving work efficiency.

[0023] 2. During operation, the evaporator for water radiation monitoring uses a ring that moves in a circular motion within the evaporation chamber, which improves sample evaporation efficiency and makes detection more convenient. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of the evaporator for water radiation monitoring according to the present invention;

[0025] Figure 2 This invention relates to an evaporator for water radiation monitoring. Figure 1 Enlarged view of point A in the image;

[0026] Figure 3 This invention relates to an evaporator for water radiation monitoring. Figure 1 A schematic diagram of the evaporator chamber after it has been cut open;

[0027] Figure 4 This invention relates to an evaporator for water radiation monitoring. Figure 3 Enlarged view of point B in the image;

[0028] Figure 5 This invention relates to an evaporator for water radiation monitoring. Figure 3 Enlarged view of point C in the image;

[0029] Figure 6 This invention relates to an evaporator for water radiation monitoring. Figure 3 A schematic diagram of the rotating support after it has been cut open.

[0030] Figure 7 This invention relates to an evaporator for water radiation monitoring. Figure 6 Enlarged view of point D in the image;

[0031] Figure 8 This invention relates to an evaporator for water radiation monitoring. Figure 6 A partial schematic diagram;

[0032] Figure 9 This invention relates to an evaporator for water radiation monitoring. Figure 8 Enlarged view of point E in the image;

[0033] Figure 10 This invention relates to an evaporator for water radiation monitoring. Figure 9 Enlarged view of point F in the image;

[0034] Figure 11This is a schematic diagram of the rotating shaft of the evaporator for water radiation monitoring of the present invention;

[0035] Figure 12 This is a schematic diagram of the plate control structure of the evaporator for water radiation monitoring of the present invention. Detailed Implementation

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please refer to Figures 1 to 12 As shown, the evaporator for water radiation monitoring provided by the present invention includes an evaporation chamber 1, a liquid injection pipe 2, a rotating bracket 3, a telescopic support arm 4, a placement ring 5, a rotating shaft 6, a rotating motor 7, and an arm control assembly.

[0038] Evaporation chamber 1 is the inner cavity of the shell. Both the shell and evaporation chamber 1 are square in shape, and the four corners of both the shell and evaporation chamber 1 are arc-shaped. Each of the four corners of evaporation chamber 1 is equipped with a liquid injection pipe 2. The liquid injection pipe 2 is connected to a liquid storage tank through a flexible tube. The sample solution to be tested in the liquid storage tank enters the liquid injection pipe 2 through the flexible tube.

[0039] The rotating support 3 is rotatably mounted inside the evaporation chamber 1. Four centrally symmetrical telescopic support arms 4 are arranged on the outer side of the rotating support 3, and a placement ring 5 is mounted on the outer end of each telescopic support arm 4. When the telescopic support arms 4 are extended to their longest position, the placement ring 5 moves below the injection tube 2. At this time, the sample container on the placement ring 5 moves directly below the injection tube 2, thus enabling automatic injection of the sample to be tested into the sample container inside the evaporation chamber 1. Furthermore, when the telescopic support arms 4 are in their shortest position, the rotation of the rotating support 3 drives the placement ring 5 to perform a circular motion, thereby causing the sample container containing the sample to be tested to perform a circular motion within the evaporation chamber 1.

[0040] The rotating shaft 6 is rotatably installed inside the evaporation chamber 1 and is connected to the telescopic support arm 4 via a transmission mechanism. The bottom end of the rotating shaft 6 is connected to the power shaft of the rotary motor 7. The rotating shaft 6 is used to control the telescopic movement of the telescopic support arm 4 after the rotary motor 7 is running, or to drive the telescopic support arm 4 to perform circular motion via the rotating bracket 3.

[0041] An arm control assembly is provided for each of the four telescopic support arms 4. Its transmission is located between the telescopic support arm 4 and the rotating shaft 6. It is used to control the telescopic support arm 4 to extend to its longest state to move the placement ring 5 below the injection tube 2, or to control the telescopic support arm 4 to remain in its shortest state to drive the placement ring 5 to make a circular motion.

[0042] By making the above settings, after starting the rotary motor 7, the telescopic support arm 4 can be controlled to perform telescopic or circular motion via the arm control component. When the telescopic support arm 4 is extended to its longest state, the sample to be tested can be injected into the sample container on the placement ring 5 through the injection tube 2. The telescopic support arm 4 can also perform circular motion while maintaining its shortest state, thereby driving the sample container to perform circular motion within the evaporation chamber 1, improving evaporation efficiency.

[0043] The telescopic support arm 4 includes an outer sleeve 4-1, an inner sleeve 4-2, a transverse strip groove 4-3, and a transverse groove slider 4-4. The inner end of the outer sleeve 4-1 is fixedly connected to the outer side of the rotating bracket 3, so that the rotating bracket 3 drives the outer sleeve 4-1 to perform a circular motion when it rotates. The inner sleeve 4-2 is slidably inserted into the outer sleeve 4-1 along the axial direction, and the outer end of the inner sleeve 4-2 passes through the outer sleeve 4-1 and is connected to the placement ring 5. The transverse strip groove 4-3 is formed at the bottom of the outer sleeve 4-1, and the transverse groove slider 4-4 is disposed in the transverse strip groove 4-3, with the top end of the transverse groove slider 4-4 fixedly connected to the bottom of the inner sleeve 4-2. By utilizing the displacement of the transverse groove slider 4-4 within the transverse strip groove 4-3, the inner sleeve 4-2 is prevented from rotating when it slides within the outer sleeve 4-1. This prevents the placement ring 5 from rotating during the telescopic support arm 4's telescopic movement and circular movement.

[0044] The arm control assembly includes a threaded groove on the inner end of the inner sleeve 4-2, a threaded rod 9 threadedly connected in the threaded groove, and a longitudinal bevel gear 10 fixedly installed on the inner end of the threaded rod 9. The inner end of the threaded rod 9 passes through the rotating bracket 3, and the longitudinal bevel gear 10 is located within the cavity of the rotating shaft 6 bracket. The inner end of the threaded rod 9 is rotatably connected to the rotating bracket 3. In the initial state, when the telescopic support arm 4 is in its shortest position, the inner end of the inner sleeve 4-2 is grounded on the threaded rod 9. Specifically, the surface of the threaded rod 9 has an annular protrusion; when the telescopic support arm 4 is in its shortest position, the inner end of the inner sleeve 4-2 abuts against the protrusion.

[0045] The arm control assembly also includes an upper transverse bevel gear 11, a lower transverse bevel gear 12, an upper bushing 13, a lower bushing 14, an upper locking structure 15a, and a lower locking structure 15b. The upper transverse bevel gear 11 and the lower transverse bevel gear 12 are respectively fixedly sleeved on the upper bushing 13 and the lower bushing 14. The opposite ends of the upper bushing 13 and the lower bushing 14 are rotatably connected, and both the upper bushing 13 and the lower bushing 14 are rotatably sleeved on the rotating shaft 6. The upper transverse bevel gear 11 and the lower transverse bevel gear 12 are respectively meshed on the top and bottom of the longitudinal bevel gear 10. The upper locking structure 15a is disposed between the rotating shaft 6 and the upper bushing 13, and the lower locking structure 15b is disposed between the rotating shaft 6 and the lower bushing 14.

[0046] The rotating shaft 6 is configured to be displaceable in the height direction. When the rotating shaft 6 is in the highest position, the upper locking structure 15a locks the upper bushing 13 to the rotating shaft 6 and the lower bushing 14 is separated from the rotating shaft 6. When the rotating shaft 6 is in the lowest position, the lower locking structure 15b locks the lower bushing 14 to the rotating shaft 6 and the upper bushing 13 is separated from the rotating shaft 6.

[0047] Specifically, when the rotating shaft 6 is in its highest position, it has the function of driving the upper transverse bevel gear 11 to rotate through the upper locking structure 15a and the upper bushing 13. When the rotating shaft 6 is in its lowest position, it has the function of driving the lower transverse bevel gear 12 to rotate through the lower locking structure 15b and the lower bushing 14. Therefore, by using the lifting and lowering movement of the rotating shaft 6 in conjunction with the upper and lower locking structures, one of the upper transverse bevel gear 11 and the lower transverse bevel gear 12 can be driven to drive the longitudinal bevel gear 10 to rotate. At the same time, when the upper transverse bevel gear 11 and the lower transverse bevel gear 12 drive the longitudinal bevel gear 10 to rotate, the rotation directions of the longitudinal bevel gear 10 are opposite. Thus, the rotation process of the longitudinal bevel gear 10 in one direction is applied to the extension of the telescopic support arm 4, while the rotation process of the longitudinal bevel gear 10 in the other direction is applied to the telescopic support arm 4 to maintain its shortest state and perform circular motion.

[0048] The bottom end of the rotating shaft 6 is provided with polygonal lifting grooves 16 distributed along the axial direction. A polygonal slider 17 is slidably disposed in the polygonal lifting grooves 16, and the bottom end of the polygonal slider 17 is connected to the power shaft of the rotary motor 7. In this way, the rotating shaft 6 can not only realize the lifting process, but also always be driven by the rotary motor 7.

[0049] Furthermore, both the upper locking structure 15a and the lower locking structure 15b are configured to include an annular groove 15-1, an arc-shaped locking plate 15-2, an inclined surface 15-3, and an inclined groove 15-4. The annular groove 15-1 is formed on the inner wall of the upper bushing 13 and the lower bushing 14, and the annular groove 15-1 penetrates the inner wall surface of the upper bushing 13 and the lower bushing 14. The arc-shaped locking plate 15-2 is radially displaceable in the annular groove 15-1. The inclined surface 15-3 is formed on the surface of the rotating shaft 6 and is formed corresponding to the arc-shaped locking plate 15-2. The inclined groove 15-4 is formed on the inclined surface 15-3. The inner end of the arc-shaped locking plate 15-2 is slidably formed in the inclined groove 15-4, and the two inclined surfaces 15-3 corresponding to the upper bushing 13 and the lower bushing 14 are arranged in opposite directions.

[0050] Specifically, the inner cavity width of the annular groove 15-1 is greater than the groove opening width. The arc-shaped locking plate 15-2 is located in the annular groove 15-1. A connecting plate is fixedly provided on the inner surface of the arc-shaped locking plate 15-2. The inner end of the connecting plate extends through the groove opening of the annular groove 15-1 into its interior. The outer end of the connecting plate slides in conjunction with the inclined groove 15-4.

[0051] When the rotating shaft 6 rises, the arc-shaped locking plate 15-2 corresponding to the upper bushing 13 will move outward and abut against the inner wall of the annular groove 15-1, thereby fixing the upper bushing 13 to the rotating shaft 6. At this time, the arc-shaped locking plate 15-2 corresponding to the lower bushing 14 will move inward and separate the lower bushing 14 from the rotating shaft 6. Similarly, when the rotating shaft 6 descends, the arc-shaped locking plate 15-2 corresponding to the lower bushing 14 will move inward and disengage from the upper bushing 13, thereby separating the upper bushing 13 from the rotating shaft 6. At this time, the arc-shaped locking plate 15-2 corresponding to the lower bushing 14 will move outward and abut against the inner wall of the annular groove 15-1, thereby fixing the lower bushing 14 to the rotating shaft 6.

[0052] The evaporation chamber 1 has a support rod 18 vertically mounted on its inner top wall. The bottom end of the support rod 18 is movably sleeved on the top end of the rotating bracket 3. The top end of the rotating shaft 6 is movably inserted into the bottom end of the support rod 18. The arm control assembly also includes a sliding sleeve 19 rotatably sleeved on the outside of the rotating shaft 6, longitudinal through-slot sliders 20 fixedly mounted on both sides of the sliding sleeve 19, longitudinal strip through-slots 21 opened on both sides of the support rod 18, lifting rods 22 fixedly mounted on the longitudinal through-slot sliders 20, a lifting plate 23 fixedly mounted between the top ends of the two lifting rods 22, and a knob 24 threadedly connected to the lifting plate 23 for adjusting the height of the rotating shaft 6. The top end of the lifting rod 22 passes through the support rod 18 and the inner top wall of the evaporation chamber 1 and extends to the outside of the evaporation chamber 1. The two longitudinal through-slot sliders 20 are slidably mounted in the two longitudinal strip through-slots 21 respectively.

[0053] At this time, by rotating knob 24 to control the vertical movement of lifting plate 23, the vertical movement of sliding sleeve 19 within support rod 18 can be controlled via lifting rod 22, thereby controlling the lifting and lowering of rotating shaft 6. In actual operation, the operator only needs to rotate knob 24 forward or backward to control the lifting and lowering of rotating shaft 6.

[0054] The two sides of the transverse through-slot slider 4-4 are flat, and the bottom end of the transverse through-slot slider 4-4 is set with a toothed structure. The arm control assembly also includes a limiting guide rail 25 and a telescopic ratchet 26. The limiting guide rail 25 is set in the height direction corresponding to the two sides of the transverse through-slot slider 4-4. The transverse through-slot slider 4-4 is located in the track groove of the limiting guide rail 25 in the rotation direction of the rotating shaft 6. The outer end of the limiting guide rail 25 is located outside the transverse strip through-slot 4-3. When the transverse through-slot slider 4-4 is located at the inner end of the transverse strip through-slot 4-3, it is located outside the limiting guide rail 25 in the radial direction and is located on one side of the telescopic ratchet 26.

[0055] When the rotating shaft 6 is at its lowest position, the transverse through-slot slider 4-4 passes over the telescopic ratchet 26 by pressing down on it; when the rotating shaft 6 is at its highest position, the telescopic ratchet 26 blocks the transverse through-slot slider 4-4, causing the transverse through-slot slider 4-4 to enter the limiting guide rail 25 and the telescopic support arm 4 to extend.

[0056] Specifically, when the rotating shaft 6 drives the upper transverse bevel gear 11 to rotate, the transverse through-slot slider 4-4, under the blocking action of the telescopic ratchet 26, causes the inner sleeve 4-2 to extend outward from the outer sleeve 4-1 during the rotation of the threaded rod 9 driven by the longitudinal bevel gear 10. This allows control of the extension of the telescopic support arm 4, moving the sample container on the placement ring 5 below the injection tube 2. During this process, the lower transverse bevel gear 12 is in a free state and rotates synchronously with the longitudinal bevel gear 10. Afterward, by operating the knob 24 to lower the drive shaft to its lowest position, the rotating shaft 6 drives the lower transverse bevel gear 12 to rotate. At this time, the lower transverse bevel gear 12 drives the threaded rod 9 to rotate through the longitudinal bevel gear 10. When the threaded rod 9 rotates, it first drives the inner sleeve 4-2 inward, causing the telescopic support arm 4 to return to its shortest state. After the telescopic support arm 4 returns to its shortest state, the transverse through-slot slider 4-4 returns to its initial state. At this point, since the inner sleeve can no longer move inward and the transverse through-slot slider 4-4 is limited by the transverse strip through-slot 4-3, the threaded rod 9 is locked. Consequently, during the subsequent rotation of the lower transverse bevel gear 12, the longitudinal bevel gear 10 will drive the rotating bracket 3 to rotate. At this time, the rotating bracket 3 will drive the telescopic support arm 4 and the placement ring 5 to perform circular motion.

[0057] The evaporation chamber 1 has a receiving groove 27 on its inner top wall. The opening of the receiving groove 27 is provided with a sealing plate 28. The top of the sealing plate 28 is rotatably installed at one end of the receiving groove 27. The liquid injection pipe 2 is installed on the inner side of the sealing plate 28. The top of the liquid injection pipe 2 is connected to a liquid storage tank through a hose. The sealing plate 28 is provided with a plate control structure 8. The plate control structure 8 is used to drive the sealing plate 28 to rotate to a vertical state when the telescopic support arm 4 is extended by the placement ring 5.

[0058] Specifically, during the extension of the telescopic support arm 4, the outward displacement of the placement ring 5 will cause the sealing plate 28 to rotate downward through the plate control structure 8. The sealing plate 28 will drive the injection tube 2 to move synchronously, and the injection tube 2 will eventually switch to a vertical state. At this time, the bottom end of the injection tube 2 is aligned with the sample container below it.

[0059] The plate control structure 8 includes a rotary torsion spring 8-1 positioned between the top of the sealing plate 28 and the receiving groove 27, a pull wire 8-2 connected to the outer side of the sealing plate 28 at its top, and a push rod 8-3 slidably mounted on the inner wall of the evaporation chamber 1, with the bottom end of the pull wire 8-2 connected to the push rod 8-3. With this configuration, as the telescopic support arm 4 extends, the placement ring 5 pushes the push rod 8-3 outwards. The push rod 8-3 pulls the wire 8-2, causing the sealing plate 28 to rotate downwards, thereby adjusting the receiving injection tube 2 to a vertical position, facilitating the injection tube 2 to inject the sample to be tested into the sample container on the placement ring 5.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An evaporator for monitoring water radiation, characterized in that, include: An evaporation chamber (1) is arranged in a square shape, and a liquid injection pipe (2) is provided at each of the four corners of the evaporation chamber (1). A rotating bracket (3) is rotatably set inside the evaporation chamber (1). Four telescopic support arms (4) are provided on the outside of the rotating bracket (3) in a centrally symmetrical manner, and a placement ring (5) is installed on the outer end of the telescopic support arm (4). A rotating shaft (6) is rotatably installed in the evaporation chamber (1) and is connected to a telescopic support arm (4). A rotary motor (7) is connected to the bottom end of the rotating shaft (6). An arm control assembly is provided for each of the four telescopic support arms (4). Its transmission is located between the telescopic support arm (4) and the rotating shaft (6). It is used to control the telescopic support arm (4) to extend to its longest state to move the placement ring (5) below the injection tube (2) or to control the telescopic support arm (4) to remain in its shortest state to drive the placement ring (5) to make a circular motion. The telescopic support arm (4) includes an outer sleeve (4-1), an inner sleeve (4-2), a transverse strip groove (4-3), and a transverse groove slider (4-4). The inner end of the outer sleeve (4-1) is fixedly connected to the outer side of the rotating bracket (3). The inner sleeve (4-2) is slidably inserted into the outer sleeve (4-1) along the axial direction, and the outer end of the inner sleeve (4-2) passes through the outer sleeve (4-1) and is connected to the placement ring (5). The transverse strip groove (4-3) is opened at the bottom of the outer sleeve (4-1). The transverse groove slider (4-4) is slidably disposed in the transverse strip groove (4-3), and the top end of the transverse groove slider (4-4) is fixedly connected to the bottom of the inner sleeve (4-2). The arm control assembly includes a threaded groove on the inner end of the inner sleeve (4-2), a threaded rod (9) threaded in the threaded groove, and a longitudinal bevel gear (10) fixedly installed on the inner end of the threaded rod (9). The inner end of the threaded rod (9) passes through the rotating bracket (3), the longitudinal bevel gear (10) is located in the inner cavity of the rotating shaft (6) bracket, and the inner end of the threaded rod (9) is rotatably connected to the rotating bracket (3). The arm control assembly also includes an upper transverse bevel gear (11), a lower transverse bevel gear (12), an upper bushing (13), a lower bushing (14), an upper locking structure (15a), and a lower locking structure (15b). The upper transverse bevel gear (11) and the lower transverse bevel gear (12) are respectively fixedly sleeved on the upper bushing (13) and the lower bushing (14). The upper bushing (13) and the lower bushing (14) are rotatably connected at opposite ends, and both the upper bushing (13) and the lower bushing (14) are rotatably sleeved on the outside of the rotating shaft (6). The upper transverse bevel gear (11) and the lower transverse bevel gear (12) are respectively meshed on the top and bottom of the longitudinal bevel gear (10). The upper locking structure (15a) is set between the rotating shaft (6) and the upper bushing (13), and the lower locking structure (15b) is set between the rotating shaft (6) and the lower bushing (14). The rotating shaft (6) is configured to be displaceable in the height direction. When the rotating shaft (6) is at its highest position, the upper locking structure (15a) locks the upper bushing (13) to the rotating shaft (6) and the lower bushing (14) separates from the rotating shaft (6). When the rotating shaft (6) is at its lowest position, the lower locking structure (15b) locks the lower bushing (14) to the rotating shaft (6) and the upper bushing (13) separates from the rotating shaft (6).

2. The evaporator for water radiation monitoring according to claim 1, characterized in that, The bottom end of the rotating shaft (6) is provided with a polygonal lifting groove (16) distributed along the axial direction. A polygonal slider (17) is slidably arranged in the polygonal lifting groove (16). The bottom end of the polygonal slider (17) is connected to the power shaft of the rotary motor (7).

3. An evaporator for water radiation monitoring according to claim 1, characterized in that, Both the upper locking structure (15a) and the lower locking structure (15b) are configured to include an annular groove (15-1), an arc-shaped locking plate (15-2), a beveled portion (15-3), and a beveled groove (15-4). The annular groove (15-1) is formed on the inner wall of the upper bushing (13) and the lower bushing (14), and the annular groove (15-1) penetrates the inner wall surfaces of the upper bushing (13) and the lower bushing (14). The arc-shaped locking plate (15-2) extends radially... The inclined surface (15-3) is disposed in the annular groove (15-1), and the inclined surface (15-3) is disposed on the surface of the rotating shaft (6) and corresponding to the arc-shaped locking plate (15-2). The inclined groove (15-4) is opened on the inclined surface (15-3). The inner end of the arc-shaped locking plate (15-2) is slidably disposed in the inclined groove (15-4), and the two inclined surfaces (15-3) corresponding to the upper bushing (13) and the lower bushing (14) are arranged in opposite directions.

4. An evaporator for water radiation monitoring according to claim 3, characterized in that, A support rod (18) is vertically installed on the inner top wall of the evaporation chamber (1). The bottom end of the support rod (18) is movably sleeved on the top end of the rotating bracket (3). The top end of the rotating shaft (6) is movably inserted into the bottom end of the support rod (18). The arm control assembly also includes a sliding sleeve (19) rotatably sleeved on the outside of the rotating shaft (6), longitudinal through-slot sliders (20) fixedly installed on both sides of the sliding sleeve (19), longitudinal strip through-slots (21) opened on both sides of the support rod (18), lifting rods (22) fixedly installed on the longitudinal through-slot sliders (20), lifting plates (23) fixedly installed between the top ends of the two lifting rods (22), and a knob (24) threadedly connected to the lifting plate (23) for adjusting the height of the rotating shaft (6). The top end of the lifting rod (22) passes through the support rod (18) and the inner top wall of the evaporation chamber (1) in sequence and extends to the outside of the evaporation chamber (1). The two longitudinal through-slot sliders (20) are respectively slidably installed in the two longitudinal strip through-slots (21).

5. An evaporator for water radiation monitoring according to claim 1, characterized in that, The two sides of the transverse through-slot slider (4-4) are flat, and the bottom end of the transverse through-slot slider (4-4) is set with a toothed structure. The arm control assembly also includes a limiting guide rail (25) and a telescopic ratchet (26). The limiting guide rail (25) is set in the plane corresponding to the two sides of the transverse through-slot slider (4-4) in the height direction. The transverse through-slot slider (4-4) is located in the track groove of the limiting guide rail (25) in the rotation direction of the rotating shaft (6). The outer end of the limiting guide rail (25) is located outside the transverse strip through-slot (4-3). When the transverse through-slot slider (4-4) is located at the inner end of the transverse strip through-slot (4-3), it is located outside the limiting guide rail (25) in the radial direction and is located on one side of the telescopic ratchet (26). When the rotating shaft (6) is at its lowest position, the transverse through-slot slider (4-4) passes over the telescopic ratchet (26) by pressing down on it; when the rotating shaft (6) is at its highest position, the telescopic ratchet (26) blocks the transverse through-slot slider (4-4), causing the transverse through-slot slider (4-4) to enter the limit guide rail (25) and the telescopic support arm (4) to extend.

6. An evaporator for water radiation monitoring according to claim 1, characterized in that, The evaporation chamber (1) has a storage groove (27) on its inner top wall. The opening of the storage groove (27) is provided with a sealing plate (28). The top of the sealing plate (28) is rotatably installed at one end of the storage groove (27). The liquid injection pipe (2) is installed on the inner side of the sealing plate (28). The top of the liquid injection pipe (2) is connected to a liquid storage tank through a hose. The sealing plate (28) is provided with a plate control structure (8). The plate control structure (8) is used to drive the sealing plate (28) to rotate to a vertical state when the telescopic support arm (4) is extended by the placement ring (5).

7. An evaporator for water radiation monitoring according to claim 6, characterized in that, The plate control structure (8) includes a rotary torsion spring (8-1) between the top of the sealing plate (28) and the storage groove (27), a pulling wire (8-2) connected to the outer side of the sealing plate (28) at its top, and a push rod (8-3) slidably disposed on the inner wall of the evaporation chamber (1), and the bottom end of the pulling wire (8-2) is connected to the push rod (8-3).

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