阅读说明：本技术 一种适用于湿热环境下的测温预警装置 (Temperature measurement early warning device suitable for damp and hot environment ) 是由 谢梦欢 于 2020-11-18 设计创作，主要内容包括：本发明涉及高温预警技术领域,且公开了一种适用于湿热环境下的测温预警装置,包括下框架,所述下框架的内侧活动连接有双金属片,所述双金属片的下方活动连接有活动轴,所述活动轴的内侧活动连接有环形连接件,通过双金属片、选型连接件、V型杆、介质板、电容板、凸轮轴、横杆、棘轮的配合,使得指针具备测温和预警双重功能,保障了在湿热环境下工作的员工的安全,且该装置结构简单,电子元件少,受到的外界干扰较小,对于高湿度高温环境能依然使用,安全性更高,通过向内按压两侧的压杆,带动连接板向内侧移动,固定块移出下框架的连接凹槽,此时可以轻松将下框架部分取下来,方便对双金属片的维护更换,提升了该装置的实用性。(The invention relates to the technical field of high-temperature early warning, and discloses a temperature measurement early warning device suitable for a damp and hot environment, which comprises a lower frame, wherein a bimetallic strip is movably connected to the inner side of the lower frame, a movable shaft is movably connected to the lower part of the bimetallic strip, an annular connecting piece is movably connected to the inner side of the movable shaft, and through the matching of the bimetallic strip, a type selection connecting piece, a V-shaped rod, a dielectric plate, a capacitor plate, a cam shaft, a cross rod and a ratchet wheel, a pointer has double functions of temperature measurement and early warning, the safety of workers working in the damp and hot environment is ensured, the device has a simple structure, less electronic elements and smaller external interference, can still be used in the high-humidity and high-temperature environment, has higher safety, and can be easily taken down by pressing the pressure rods on two sides inwards to drive the connecting plate to move towards the inner side, the, the bimetallic strip is convenient to maintain and replace, and the practicability of the device is improved.)

1. The utility model provides a temperature measurement early warning device suitable for under damp and hot environment, includes underframe (1), its characterized in that: the inner side of the lower frame (1) is movably connected with a bimetallic strip (2), the lower part of the bimetallic strip (2) is movably connected with a movable shaft (3), the inner side of the movable shaft (3) is movably connected with an annular connecting piece (4), the inner side of the annular connecting piece (4) is movably connected with a V-shaped rod (5), the upper part of the V-shaped rod (5) is movably connected with a fixed plate (6), the inner side of the fixed plate (6) is movably connected with a lifting shaft (7), the upper part of the lifting shaft (7) is movably connected with a dielectric plate (8), the upper part of the dielectric plate (8) is movably connected with a capacitance plate (9), the upper part of the lower frame (1) is movably connected with a pressure lever (10), the inner side of the pressure lever (10) is movably connected with a connecting plate (11), and the outer side of, the upper portion of the compression bar (10) is movably connected with a cam shaft (13), the rear portion of the cam shaft (13) is movably connected with a cross rod (14), the right end of the cross rod (14) is movably connected with a pawl (15), the right side of the pawl (15) is movably connected with a ratchet wheel (16), the upper portion of the ratchet wheel (16) is movably connected with a gear set (17), the upper portion of the gear set (17) is movably connected with a pointer (18), and the right side of the pointer (18) is movably connected with a trigger block (19).

2. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: the number of the annular connecting pieces (4) is three, the left and the right connecting pieces are movably connected to the inner side of the movable shaft (3) respectively, and one of the middle connecting pieces is movably connected to the lower part of the lifting shaft (7).

3. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: the number of the V-shaped rods (5) is two, one end of each V-shaped rod (5) is movably connected into the annular connecting piece (4) on the side edge, the middle turning part is hinged on the fixing plate (6), and the other end of each V-shaped rod is movably connected into the annular connecting piece (4) in the middle.

4. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: the inboard of fixed plate (6) is provided with positioning gear, and the both sides of lift axle (7) are provided with the teeth of a cogwheel of looks adaptation, and the both sides of lift axle (7) are provided with the fixture block simultaneously.

5. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: the outer side of the connecting plates (11) and the upper part of the pressure rod (10) are movably connected with a restoring spring, a positioning gear is arranged between the two connecting plates (11), and the inner sides of the connecting plates (11) are movably connected with toothed rods which are meshed with each other.

6. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: the supporting facility of trigger block (19) has alarm device, and trigger block (19) and alarm device electric connection.

7. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: the gear set (17) comprises a left gear and a right gear which are meshed with each other, the ratchet wheel (16) is coaxial with the right gear, the left gear is movably connected with the main shaft, and the right side of the pointer (18) is movably connected with the main shaft.

8. The temperature measurement early warning device suitable for the damp and hot environment according to claim 1, wherein: and a moving block is arranged above the movable shaft (3) and on the inner side of the bimetallic strip (2), and the thermal expansion coefficient of the left metal in the bimetallic strip (2) is greater than that of the right metal.

Technical Field

The invention relates to the technical field of high-temperature early warning, in particular to a temperature measurement early warning device suitable for a damp and hot environment.

Background

The damp-heat environment refers to an environment with high temperature and high humidity and no wind or little wind, such as a pulping and cooking operation workshop in the paper making process, which has high temperature and high humidity and is easy to cause skin allergy, sunstroke, rheumatism and other diseases when working in the environment for a long time.

The existing temperature measurement early warning device under the damp and hot environment is mostly two devices with separated temperature measurement and early warning, part of the device is complex in structure, the early warning device with more internal electrical components is easily affected by the high-humidity environment, the early warning function is failed, and the two devices are more complex to install and operate.

In order to solve the above problems, the inventor provides a temperature measurement early warning device suitable for use in a damp and hot environment, which has the advantages of dual functions of temperature measurement and early warning, simple structure, no influence from the damp and hot environment, and simple disassembly and assembly.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: a temperature measurement early warning device suitable for a damp and hot environment comprises a lower frame, wherein a bimetallic strip is movably connected to the inner side of the lower frame, a movable shaft is movably connected to the lower portion of the bimetallic strip, an annular connecting piece is movably connected to the inner side of the movable shaft, a V-shaped rod is movably connected to the inner side of the annular connecting piece, a fixed plate is movably connected to the upper portion of the V-shaped rod, a lifting shaft is movably connected to the inner side of the fixed plate, a medium plate is movably connected to the upper portion of the lifting shaft, a capacitor plate is movably connected to the upper portion of the medium plate, a pressure rod is movably connected to the upper portion of the lower frame, a connecting plate is movably connected to the inner side of the pressure rod, a fixed block is movably connected to the outer side of the lower end of the connecting plate, the right side of the pawl is movably connected with a ratchet wheel, a gear set is movably connected above the ratchet wheel, a pointer is movably connected above the gear set, and a trigger block is movably connected on the right side of the pointer.

Preferably, the number of the annular connecting pieces is three, the left annular connecting piece and the right annular connecting piece are movably connected to the inner side of the movable shaft respectively, and one of the left annular connecting piece and the right annular connecting piece is movably connected to the lower portion of the lifting shaft.

Preferably, the number of the V-shaped rods is two, one end of each V-shaped rod is movably connected into the annular connecting piece on the side edge, the middle turning part is hinged on the fixing plate, and the other end of each V-shaped rod is movably connected into the annular connecting piece in the middle.

Preferably, the inner side of the fixing plate is provided with a positioning gear, the two sides of the lifting shaft are provided with gear teeth matched with each other, and the two sides of the lifting shaft are provided with clamping blocks.

Preferably, the outer side of the connecting plates and the upper part of the pressure rod are movably connected with a restoring spring, a positioning gear is arranged between the two connecting plates, and the inner sides of the connecting plates are movably connected with toothed rods which are meshed with each other.

Preferably, the supporting facility of trigger block has alarm device, and trigger block and alarm device electric connection.

Preferably, the gear set comprises a left gear and a right gear which are meshed with each other, the ratchet wheel is coaxial with the right gear, the left gear is movably connected with the main shaft, and the right side of the pointer is movably connected with the main shaft.

Preferably, a moving block is arranged above the movable shaft and on the inner side of the bimetallic strip, and the thermal expansion coefficient of the left metal in the bimetallic strip is greater than that of the right metal.

Advantageous effects

Compared with the prior art, the invention provides a temperature measurement early warning device suitable for a damp and hot environment, which has the following beneficial effects:

1. this temperature measurement early warning device suitable for under damp and hot environment, through the bimetallic strip, the lectotype connecting piece, the V type pole, the dielectric plate, the electric capacity board, the camshaft, the horizontal pole, the cooperation of ratchet, make the pointer when the temperature is lower relatively, can demonstrate the highest temperature in the dial plate, at high temperature, can be through triggering a block automatic alarm when continuous operation can produce harm to workman's safety, possess temperature measurement and early warning dual function, the staff's of working under damp and hot environment safety has been ensured, and the device simple structure, electronic component is few, the external disturbance that receives is less, can still use to high humidity high temperature environment, the security is higher.

2. This temperature measurement early warning device suitable for under damp and hot environment through the depression bar of inwards pressing both sides, and the depression bar drives the connecting plate and moves to the inboard, shifts out the connecting groove of underframe with the fixed block in the connecting plate below outside, can easily take off the underframe part this moment, and the convenience is changed the maintenance of bimetallic strip, has promoted the device's practicality.

Drawings

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

FIG. 2 is a schematic view of a lower frame portion according to the present invention;

FIG. 3 is a schematic view of the ratchet part of FIG. 1 according to the present invention;

fig. 4 is a top view of fig. 3 of the present invention.

In the figure: 1. a lower frame; 2. a bimetal; 3. a movable shaft; 4. an annular connector; 5. a V-shaped rod; 6. a fixing plate; 7. a lifting shaft; 8. a dielectric plate; 9. a capacitive plate; 10. a pressure lever; 11. a connecting plate; 12. a fixed block; 13. a camshaft; 14. a cross bar; 15. a pawl; 16. a ratchet wheel; 17. a gear set; 18. a pointer; 19. and triggering the block.

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. 1-4, a temperature measurement early warning device suitable for use in a damp and hot environment comprises a lower frame 1, a vent hole is formed in the lower frame 1, a bimetallic strip 2 is movably connected to the inner side of the lower frame 1, a movable shaft 3 is movably connected to the lower side of the bimetallic strip 2, a movable block is arranged above the movable shaft 3 and on the inner side of the bimetallic strip 2, the thermal expansion coefficient of the left metal in the bimetallic strip 2 is greater than that of the right metal, an annular connecting member 4 is movably connected to the inner side of the movable shaft 3, three annular connecting members 4 are provided, the left and right two annular connecting members are respectively movably connected to the inner side of the movable shaft 3, the middle one of the two annular connecting members is movably connected to the lower side of a lifting shaft 7, a V-shaped rod 5 is movably connected to the inner side of the annular connecting member 4, a fixing plate 6 is movably connected to the upper side of the V-, the middle turning part is hinged on a fixed plate 6, the other end is movably connected in a middle annular connecting piece 4, the inner side of the fixed plate 6 is provided with a positioning gear, the inner side of the fixed plate 6 is movably connected with a lifting shaft 7, the two sides of the lifting shaft 7 are provided with gear teeth matched with the positioning gear, the two sides of the lifting shaft 7 are provided with clamping blocks, the upper part of the lifting shaft 7 is movably connected with a medium plate 8, the upper part of the medium plate 8 is movably connected with a capacitor plate 9, the upper part of the lower frame 1 is movably connected with a pressure rod 10, the inner side of the pressure rod 10 is movably connected with a connecting plate 11, the outer side of the connecting plate 11 and the upper part of the pressure rod 10 are movably connected with a restoring spring, the positioning gear is arranged between the two connecting plates 11, the inner side of the connecting plate 11 is movably connected, the lower extreme of camshaft 13 is connected with the rotation motor, the rotation motor is connected with electric connection of capacitor plate 9, the rear swing joint of camshaft 13 has horizontal pole 14, the right-hand member swing joint of horizontal pole 14 has pawl 15, the right side swing joint of pawl 15 has ratchet 16, the top swing joint of ratchet 16 has gear train 17, the top swing joint of gear train 17 has pointer 18, gear train 17 is including controlling two gears, two gear intermeshing, ratchet 16 is coaxial with the right gear, and left side gear and main shaft swing joint, the right side swing joint of pointer 18 is on the main shaft, the right side swing joint of pointer 18 has trigger block 19, trigger block 19's supporting facility has alarm device, and trigger block 19 and alarm device electric connection.

The working process and principle are as follows: install the device in the place that needs the temperature measurement early warning, when ambient temperature rose, bimetallic strip 2 receives the influence that the temperature rose, because the coefficient of thermal expansion of left side metal is greater than the coefficient of thermal expansion of right side metal in bimetallic strip 2, bimetallic strip 2 can be crooked to the inboard when being heated the inflation, bimetallic strip 2 promotes loose axle 3 through the movable block and moves to the inboard, the annular connecting piece 4 that drives both sides simultaneously moves to the inboard, the annular connecting piece 4 of side promotes V type pole 5 and rotates around the pin joint, when V type pole 5 rotates simultaneously, drive the 4 up-movements of annular connecting piece in the middle of the drive, lift axle 7 passes through positioning gear and the fixture block of 6 both sides of fixed plate, it is upwards to promote dielectric plate 8, enter into between two capacitor plates 9, according to the capacitance formula:

C＝εS/4πkd

the dielectric constant epsilon is changed, the capacitance of the capacitance plate 9 is changed to cause voltage change, an electric signal is triggered, a rotating motor below the cam shaft 13 is started to drive the cam shaft 13 to rotate, when the convex part of the cam shaft 13 contacts the cross rod 14, the cross rod 14 drives the pawl 15 to move backwards, the pawl 15 pushes the ratchet wheel 16 to rotate, when the ratchet wheel 16 rotates, the gear set 17 above is driven to rotate, a left gear in the gear set 17 drives the pointer 18 to rotate, when the temperature gradually rises, the bending degree of the bimetallic strip 2 increases, the capacitance change increases, the rotation amplitude of the pointer 18 is larger, a dial is arranged between the gear set 17 and the pointer 18, temperature scales are engraved on the dial, the highest temperature can be seen through the pointer 18, when the temperature rises too high, the pointer 18 rotates 180 degrees, and when the right trigger block 19 is contacted, the trigger block 19 can trigger an alarm device, the device can detect out the highest ambient temperature when the temperature is lower relatively, and at the high temperature, can automatic alarm when continuous operation can produce harm to workman's safety, possesses temperature measurement and early warning dual function, has ensured the staff's of work under damp and hot environment safety, and the device simple structure, and electronic component is few, and the external disturbance that receives is less, can still use to high humidity high temperature environment, and the security is higher.

When the structure of lower frame 1 needs maintenance to be changed, through the depression bar 10 of inwards pressing both sides, depression bar 10 drives connecting plate 11 and moves to the inboard, shifts out the connecting groove of underframe 1 with fixed block 12 in the outside below connecting plate 11, can easily take off underframe 1 part this moment, and the convenience is to the maintenance of bimetallic strip 2 change, has promoted the device's practicality.

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.