阅读说明：本技术 一种防超量程检测精确的水银温度计 (Anti-over-range detection accurate mercury thermometer ) 是由 温富荣 于 2021-01-19 设计创作，主要内容包括：本发明涉及温度测量技术领域,且公开了一种防超量程检测精确的水银温度计,包括温度计,所述温度计的外侧固定连接有导轨,所述导轨的内部滑动连接有滑杆,所述滑杆的内底部固定连接有温度球,所述滑杆的外侧固定连接有蜗轮,所述蜗轮的底部啮合有风扇,所述滑杆的靠近温度计的一侧固定连接有复位绳。该防超量程检测精确的水银温度计,通过测温头是温度球膨胀,温度球推动活塞板上升,活塞板上升挤压气腔,气腔通过气管使气囊膨胀,气囊膨胀通过顶块带动顶杆上升,此时气囊推动调节板上升,调节板带动调节弹簧上升,再通过调节弹簧与限位块的配合使用,从而达到了能防止温度过高造成仪器损坏的效果。(The invention relates to the technical field of temperature measurement and discloses a mercury thermometer capable of preventing over-range detection from being accurate. This prevent that overrange detects accurate mercury thermometer is the temperature ball inflation through the temperature probe, and the temperature ball promotes the piston plate and rises, and the ascending extrusion air cavity of piston plate, air cavity make the gasbag inflation through the trachea, and the gasbag inflation drives the ejector pin through the kicking block and rises, and the gasbag promotes the regulating plate and rises this moment, and the regulating plate drives adjusting spring and rises, and the cooperation of rethread adjusting spring and stopper is used to reached and can prevent that the high effect that causes the instrument to damage of high temperature.)

1. An anti-over-range detection accurate mercury thermometer comprises a thermometer (1) and is characterized in that: the thermometer is characterized in that a guide rail (2) is fixedly connected to the outer side of the thermometer (1), a slide rod (3) is connected to the guide rail (2) in a sliding manner, a temperature ball (4) is fixedly connected to the inner bottom of the slide rod (3), a piston plate (5) is fixedly connected to the top of the temperature ball (4), an air bag (6) is fixedly connected to the inner side of the slide rod (3), an adjusting plate (7) is fixedly connected to the top of the air bag (6), an ejector rod (8) is slidably connected to the bottom of the adjusting plate (7), a connecting rod (9) is movably connected to the top of the ejector rod (8), a clamping rod (10) is movably connected to one side, away from the ejector rod (8), of the connecting rod (9), an adjusting spring (11) is fixedly connected to the top of the adjusting spring (11), a limiting block (12) is fixedly connected to the top, the thermometer is characterized in that a gear (14) is fixedly connected to the inner wall of the sliding rod (3), a transmission wheel (15) is fixedly connected to the inside of the gear (14), a pawl (16) is movably connected to the outer side of the transmission wheel (15), a worm wheel (17) is fixedly connected to the outer side of the sliding rod (3), a fan (18) is meshed to the bottom of the worm wheel (17), and a reset rope (19) is fixedly connected to one side, close to the thermometer (1), of the sliding rod (3).

2. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: the inner wall of the guide rail (2) is fixedly connected with a toothed bar.

3. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: the bottom of the slide bar (3) is fixedly connected with a temperature measuring head, and the temperature ball (4) is positioned at the top of the temperature measuring head.

4. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: an air cavity is formed in the slide rod (3), the piston plate (5) is connected with the inside of the air cavity in a sliding mode, and meanwhile the air bag (6) is connected with the air cavity through an air pipe.

5. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: the outer side of the air bag (6) is fixedly connected with a top block.

6. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: the inner wall of the gear (14) is fixedly connected with a ratchet.

7. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: the outer side of the transmission wheel (15) is provided with a blocking opening, and the transmission wheel (15) is in transmission connection with a worm wheel (17) through a transmission belt.

8. The mercury thermometer of claim 1, wherein the mercury thermometer is adapted to prevent over-range detection of mercury, and further comprises: one side of the fan (18) close to the worm wheel (17) is fixedly connected with a worm, and the worm is meshed with the worm wheel (17).

Technical Field

The invention relates to the technical field of temperature measurement, in particular to a mercury thermometer capable of preventing over-range detection and achieving accuracy.

Background

The mercury thermometer is used for measuring the temperature, and can be used as an expansion type thermometer only for measuring the temperature as an instrument for in-situ supervision, so that the instrument is not only simpler and more intuitive, but also can avoid the error of an external remote thermometer.

Present mercury thermometer all has certain range, if measured temperature exceedes the range, the inside mercury of thermometer can burst the thermometer, and current mercury thermometer does not possess protect function, not only can damage the instrument when measured temperature is too high, have and have certain toxicity with mercury, can harm measurement personnel's health, current mercury thermometer is after using simultaneously, need wait that its inside liquid just can carry out next time after recovering, liquid recovers slowly, and measurement personnel forget the direct use easily, can influence the measuring result.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the mercury thermometer capable of preventing over-range detection from being accurate, which has the advantages of capability of preventing the damage of an instrument due to overhigh temperature, long service life, safety in use, capability of accelerating the cooling of the thermometer, high detection efficiency, high detection precision and the like, and solves the problems that the existing mercury thermometer does not have a protection function, the instrument can be damaged when the measured temperature is overhigh, has certain toxicity with mercury and can harm the health of detection personnel, the existing mercury thermometer can carry out next measurement after the restoration of the liquid in the existing mercury thermometer after being used, and the liquid restoration is slow.

(II) technical scheme

In order to achieve the purposes of preventing the damage of the instrument caused by overhigh temperature, having long service life, safe use, accelerated cooling of the thermometer, high detection efficiency and high detection precision, the invention provides the following technical scheme: the mercury thermometer comprises a thermometer, a guide rail is fixedly connected to the outer side of the thermometer, a slide rod is connected to the inner portion of the guide rail in a sliding mode, a temperature ball is fixedly connected to the inner bottom of the slide rod, a piston plate is fixedly connected to the top of the temperature ball, an air bag is fixedly connected to the inner portion of the slide rod, an adjusting plate is fixedly connected to the top of the air bag, an ejector rod is connected to the bottom of the adjusting plate in a sliding mode, a connecting rod is movably connected to the top of the ejector rod, a clamping rod is movably connected to one side, away from the ejector rod, of the connecting rod, an adjusting spring is fixedly connected to the top of the adjusting plate, a limiting block is fixedly connected to the top of the adjusting spring, a swing claw is movably connected to the inner wall of the slide rod, a gear is, the thermometer is characterized in that a worm gear is fixedly connected to the outer side of the sliding rod, a fan is meshed to the bottom of the worm gear, and a reset rope is fixedly connected to one side, close to the thermometer, of the sliding rod.

Preferably, the inner wall of the guide rail is fixedly connected with a toothed bar which is matched with a gear for use.

Preferably, the slide bar is internally provided with an air cavity, the piston plate is connected with the inside of the air cavity in a sliding manner, and the air bag is connected with the air cavity through an air pipe.

Preferably, the bottom of the slide bar is fixedly connected with a temperature measuring head, and the temperature ball is positioned at the top of the temperature measuring head.

Preferably, the outer side of the air bag is fixedly connected with an ejector block, so that the ejector rod can be driven to ascend firstly when the air bag is expanded.

Preferably, the inner wall of the gear is fixedly connected with a ratchet which is matched with the pawl for use.

Preferably, the outer side of the transmission wheel is provided with a blocking opening, and the transmission wheel is in transmission connection with the worm wheel through a transmission belt.

Preferably, a worm is fixedly connected to one side of the fan close to the worm wheel, and the worm is meshed with the worm wheel.

(III) advantageous effects

Compared with the prior art, the invention provides the mercury thermometer capable of preventing the over-range detection from being accurate, and the mercury thermometer has the following beneficial effects:

1. this prevent that overrange detects accurate mercury thermometer, it is the temperature ball inflation to pass through the temperature probe, the temperature ball promotes the piston plate and rises, the ascending extrusion air cavity of piston plate, the air cavity makes the gasbag inflation through the trachea, the gasbag inflation drives the ejector pin through the kicking block and rises, the ejector pin drives the connecting rod and rises, the connecting rod drives the kelly and slides to the regulating plate is inside, the gasbag promotes the regulating plate and rises this moment, the regulating plate drives adjusting spring and rises, the cooperation of rethread adjusting spring and stopper is used, thereby reached and can prevent that the high effect that causes the instrument to damage of high temperature.

2. This prevent that overrange detects accurate mercury thermometer, through the slide bar decline drive gear decline, the gear decline rotates under the effect of ratch, the gear revolve drives the pawl through the ratchet and rotates, the pawl drives the drive wheel and rotates, the drive wheel drives the worm wheel through the drive belt and rotates, the worm wheel drives the worm and rotates, the rethread worm uses with the cooperation of fan, thereby has reached and can accelerate the thermometer cooling, detects the effect that the precision is high.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is a schematic view of a slide bar portion of the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 3 according to the present invention;

FIG. 5 is a partial schematic view of a gear according to the present invention;

FIG. 6 is a partial schematic view of a fan according to the present invention.

In the figure: 1. a thermometer; 2. a guide rail; 3. a slide bar; 4. a temperature ball; 5. a piston plate; 6. an air bag; 7. an adjusting plate; 8. a top rod; 9. a connecting rod; 10. a clamping rod; 11. adjusting the spring; 12. a limiting block; 13. swinging the claw; 14. a gear; 15. a driving wheel; 16. a pawl; 17. a worm gear; 18. a fan; 19. a reset rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a mercury thermometer capable of preventing over-range detection accuracy comprises a thermometer 1, a guide rail 2 is fixedly connected to the outer side of the thermometer 1, a rack bar is fixedly connected to the inner wall of the guide rail 2 and used in cooperation with a gear 14, a slide bar 3 is slidably connected to the inner portion of the guide rail 2, an air cavity is formed in the slide bar 3, an air cavity is slidably connected to a piston plate 5, the air bag 6 is connected to the air cavity through an air pipe, a temperature measuring head is fixedly connected to the bottom of the slide bar 3, the temperature ball 4 is located at the top of the temperature measuring head, a temperature ball 4 is fixedly connected to the inner bottom of the slide bar 3, the piston plate 5 is fixedly connected to the top of the temperature ball 4, the air bag 6 is fixedly connected to the inner portion of the slide bar 3, a top block is fixedly connected to the outer side of the air bag 6, so that the top rod, the top of the ejector rod 8 is movably connected with a connecting rod 9, one side of the connecting rod 9 far away from the ejector rod 8 is movably connected with a clamping rod 10, the top of the adjusting plate 7 is fixedly connected with an adjusting spring 11, the top of the adjusting spring 11 is fixedly connected with a limiting block 12, the inner wall of the slide rod 3 is movably connected with a swing claw 13, the inner wall of the slide rod 3 is fixedly connected with a gear 14, the inner wall of the gear 14 is fixedly connected with a ratchet, is matched with a pawl 16 for use, a driving wheel 15 is fixedly connected inside the gear 14, a blocking opening is arranged on the outer side of the driving wheel 15, and the transmission wheel 15 is in transmission connection with a worm wheel 17 through a transmission belt, the outer side of the transmission wheel 15 is movably connected with a pawl 16, the outer side of the slide bar 3 is fixedly connected with the worm wheel 17, the bottom of the worm wheel 17 is meshed with a fan 18, one side of the fan 18 close to the worm wheel 17 is fixedly connected with a worm, and the worm is meshed with the worm wheel 17, and one side of the slide bar 3 close to the thermometer 1 is fixedly connected with a reset rope 19.

The working principle is that when the instrument needs to be used, the slide rod 3 is placed on the surface of an object to be measured, the temperature measuring head at the bottom of the slide rod 3 detects the temperature, when the temperature of the object to be measured is higher, the temperature measuring head enables the temperature ball 4 to expand, the temperature ball 4 pushes the piston plate 5 to rise, the piston plate 5 rises to extrude the air cavity, the air cavity enables the air bag 6 to expand through the air pipe, the air bag 6 expands to drive the ejector rod 8 to rise through the ejector block, the ejector rod 8 drives the connecting rod 9 to rise, the connecting rod 9 drives the clamping rod 10 to slide towards the inside of the adjusting plate 7, the air bag 6 pushes the adjusting plate 7 to rise, the adjusting plate 7 drives the adjusting spring 11 to rise, the adjusting spring 11 rises, the limiting force given to the limiting block 12 is increased, the gear 14 stops rotating under the action of the swing claw 13, the gear 14 limits the slide rod 3, the use is safe.

When the temperature of the object to be measured is normal, the thermometer 1 is pressed, the thermometer 1 drives the guide rail 2 to descend, the slide bar 3 ascends relative to the guide rail 2, the slide bar 3 ascends to drive the gear 14 to ascend, the gear 14 rotates forwards under the action of the toothed bar, the gear 14 rotates forwards to drive the pawl 16 to swing through the ratchets, the gear 14 drives the swing claw 13 to swing, the swing claw 13 pushes the limiting block 12 to descend, when the thermometer 1 descends to the surface of the object to be measured, the thermometer 1 sets the temperature to be measured, after the measurement is completed, the thermometer 1 is taken down, the slide bar 3 descends relative to the guide rail 2 under the action of the reset rope 19, the slide bar 3 drives the gear 14 to descend, the gear 14 rotates backwards under the action of the toothed bar, the gear 14 drives the ratchets pawl 16 to rotate through the drive of the pawl 16, the worm wheel 15 drives the, the fan 18 rotates to accelerate the cooling of the thermometer 1, so that the quick reuse is ensured, and the detection precision is high.

To sum up, this prevent that overrange detects accurate mercury thermometer, it is the inflation of temperature ball 4 to pass through the temperature probe, temperature ball 4 promotes piston plate 5 and rises, the ascending extrusion air cavity of piston plate 5, the air cavity makes gasbag 6 inflation through the trachea, 6 expansions of gasbag drive ejector pin 8 through the kicking block and rise, ejector pin 8 drives connecting rod 9 and rises, connecting rod 9 drives kelly 10 and slides to 7 insides of regulating plate, 6 promotion regulating plate 7 of gasbag this moment rise, regulating plate 7 drives regulating spring 11 and rises, rethread regulating spring 11 uses with stopper 12's cooperation, thereby reached and to prevent that the high temperature from causing the effect of instrument damage. This prevent that overrange detects accurate mercury thermometer, it descends to drive gear 14 through slide bar 3, gear 14 descends and rotates under the effect of ratch, gear 14 rotates and drives pawl 16 through the ratchet and rotate, pawl 16 drives drive wheel 15 and rotates, drive wheel 15 drives worm wheel 17 through the drive belt and rotates, worm wheel 17 drives the worm and rotates, the cooperation of rethread worm and fan 18 is used, thereby reached and can accelerate the thermometer cooling, detect the effect that the precision is high, application scope is more extensive.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.