A lens heating defrosting and defogging effect testing device

Abstract

The present application relates to lens detection technical field, especially to a kind of lens heating defrosting demisting effect test device.The present application provides a kind of lens heating defrosting demisting effect test device, which can adjust the height of lens, and easy to operate.A kind of lens heating defrosting demisting effect test device, including heating base;Water tank, heating base upper portion is connected with water tank;Guide sleeve, three guide sleeves are uniformly connected with water tank upper portion;First support frame, first support frame is slidably connected in the three guide sleeves, and first support frame lower portion is slidably connected with water tank;Adjusting mechanism, adjusting mechanism is connected between water tank front upper side and first support frame front lower side.The present application places lens on the upper portion of first support frame, and the first support frame drives lens to move up and down to adjust height by driving screw forward and reverse rotation with forward and reverse rotation hand wheel, so as to test the lens with different heat resistance, so that the operation is relatively simple, and lens does not need to be held for detection.

Description

Technical Field

[0001] This invention relates to the field of lens testing technology, and in particular to a lens heating defrosting and defogging effect testing device. Background Technology

[0002] Anyone who wears glasses knows that lenses fog up when there are significant temperature differences, especially in cold weather. This fogging is more pronounced and severely affects vision, a problem that cannot be ignored in daily life and work. Some lenses cannot adapt to temperature changes immediately, causing fogging to accumulate and preventing quick defogging. This leads to frost formation in cold weather, severely impacting the lens's lifespan and significantly affecting the user's vision, making it difficult to see clearly in cold conditions. Therefore, lenses must be tested for defogging effectiveness before leaving the factory. Currently, the defogging effect is typically tested by holding the lens over water vapor and observing how quickly the fog is removed. For lenses with different heat resistance levels, the height must be manually controlled during testing, making the process rather cumbersome.

[0003] In conclusion, there is a need to develop a lens heating defrosting and defogging effect testing device that is height-adjustable and easy to operate. Summary of the Invention

[0004] To overcome the shortcomings of current methods for testing lens defogging, which require holding the lens over water vapor and manually adjusting its height, making the process cumbersome, this invention provides a lens heating defrosting and defogging effect testing device that allows for adjustable lens height and is easy to operate.

[0005] To achieve the above objectives, the present invention provides a lens heating defrosting and defogging effect testing device, comprising:

[0006] Heated base;

[0007] A water tank is connected to the upper part of the heating base for storing water;

[0008] Guide sleeves: Three guide sleeves are evenly connected around the upper part of the water tank.

[0009] The first support frame is slidably connected to the three guide sleeves, and the lower part of the first support frame is slidably connected to the water tank.

[0010] An adjustment mechanism is connected to the upper front side of the water tank and the lower front side of the first support frame for adjusting the height of the lens. Rotating the adjustment mechanism moves the first support frame up and down, and the first support frame moves the lens up and down to test lenses with different heat resistance.

[0011] An air injection mechanism is connected to the lower right side of the water tank to assist in accelerating the rise of water vapor. Activating the air injection mechanism sends air into the water tank, accelerates the boiling of the water, generates a large amount of water vapor, and drives the water vapor to rise rapidly to contact the lens, preventing excessive heating time from affecting the testing efficiency.

[0012] More preferably, the adjustment mechanism includes:

[0013] Support block: A support block is connected to the upper front side of the water tank;

[0014] The lifting assembly has a lifting component connected to the lower front side of the first support frame for adjusting the height of the first support frame. Rotating the lifting assembly causes the support block and the first support frame to move up and down, which is used to test lenses with different heat resistance. The top of the lifting assembly is rotatably connected to the support block.

[0015] More preferably, the lifting assembly includes:

[0016] A threaded sleeve is connected to the lower front side of the first support frame;

[0017] (Screw), the screw sleeve has a screw threaded connection inside the screw sleeve, and the top of the screw is rotatably connected to the support block;

[0018] A handwheel is connected to the bottom of the handwheel. By turning the handwheel forward and backward, the lead screw, support block and first support frame are moved up and down, which is used to test lenses with different heat resistance.

[0019] More preferably, the gas injection mechanism includes:

[0020] Dual-shaft motor; a dual-shaft motor is connected to the lower right rear side of the water tank.

[0021] Centrifugal fan, the centrifugal fan is connected to the lower right rear side of the water tank, and the output shaft of the dual-shaft motor is connected to the impeller inside the centrifugal fan;

[0022] An air pipe is connected to the lower right side of the water tank. The rear end of the air pipe is connected to a centrifugal fan. By starting the dual-shaft motor, the impeller inside the centrifugal fan is driven to rotate, and air is sent into the water tank through the air pipe to accelerate the boiling of the water and generate a large amount of water vapor to accelerate the test efficiency.

[0023] The first one-way valve is connected to the middle of the front side of the trachea.

[0024] More preferably, it also includes a clamping mechanism for clamping the lens, the clamping mechanism including:

[0025] A guide rod is connected to the upper front side of the first support frame;

[0026] The guide rod has a sliding clamp for clamping the lens.

[0027] The first compression spring is sleeved on the guide rod. The two ends of the first compression spring are connected to the upper part of the guide rod and the top of the clamping plate, respectively. The first compression spring drives the clamping plate to move downward to clamp the lens, which is used to prevent the lens from detaching from the first support frame during the adjustment process of moving up and down.

[0028] More preferably, it also includes a water-filling mechanism for automatically adding water to the water tank, the water-filling mechanism including:

[0029] Crank: A crank is connected to the upper part of the output shaft on the upper side of the dual-shaft motor;

[0030] A piston cylinder is connected to the lower right side of the water tank for temporary water storage.

[0031] The first piston, which is slidably connected inside the piston cylinder for drawing and pushing water, has its right side slidably connected to the crank.

[0032] The water outlet pipe is connected to the lower left side of the piston cylinder and the lower right side of the water tank.

[0033] The water inlet pipe is connected to the upper left side of the piston cylinder. The water is drawn and pushed by the left and right movement of the first piston, which drives the water through the water inlet pipe into the piston cylinder, and then through the water outlet pipe into the water tank for automatic water replenishment.

[0034] The second check valve is connected to the right side of the outlet pipe;

[0035] The third check valve is connected to the lower right side of the inlet pipe.

[0036] More preferably, it also includes a retraction mechanism for closing the water tank, the retraction mechanism comprising:

[0037] The water tank has a hexagonal groove on top, and six connecting columns are slidably connected within the hexagonal groove. As the connecting columns move, the hexagonal groove guides the connecting columns, which in turn drives the slider to move outward and prevents the water tank from closing.

[0038] The slider is connected to the middle of each of the six connecting columns for closing the water tank, and the slider contacts the top of the water tank;

[0039] Synchronization plate; the upper parts of the six connecting columns are slidably connected by a synchronization plate.

[0040] The handle is attached to the front of the synchronization plate.

[0041] More preferably, it also includes a balancing mechanism to prevent excessive pressure inside the water tank, the balancing mechanism including:

[0042] Support cylinder; A support cylinder is connected to the left side of the middle part of the water tank.

[0043] The second support frame is connected to the left side of the support cylinder;

[0044] The second piston is slidably connected to the inside of the support cylinder in the middle of the second support frame. When the pressure inside the water tank is greater than the external pressure, the water vapor pushes the second piston to the left to stop blocking the support cylinder, thereby releasing the pressure inside the water tank and preventing an explosion due to excessive pressure.

[0045] The second compression spring is fitted in the middle of the second piston, and the two ends of the second compression spring are connected to the right side of the second support frame and the right side of the second piston, respectively.

[0046] This invention has at least one of the following advantages: By placing the lens on the upper part of the first support frame and using a forward and reverse handwheel to drive the lead screw to rotate in both directions, the first support frame moves the lens up and down for height adjustment, facilitating testing of lenses with different heat resistance levels. This simplifies operation and eliminates the need to hold the lens during testing. Under the action of the first compression spring, the clamping plate firmly secures the lens, effectively preventing it from detaching from the first support frame and improving stability. When the dual-axis motor starts, it drives the crank to rotate, which in turn moves the first piston left and right, drawing water from the inlet pipe into the piston cylinder. The water in the piston cylinder is then pushed into the water tank through the outlet pipe, achieving automatic water replenishment. Guided by the hexagonal sliding groove, the synchronous plate reverses, causing the connecting column and slider to move in the opposite direction, repositioning the slider inward and closing the water tank to prevent water vapor loss. The water vapor pushes the second piston to the left, allowing water vapor to escape from the support cylinder. This prevents excessive pressure inside the water tank from causing an explosion, thus improving the safety of the device. Attached Figure Description

[0047] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0048] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0049] Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention.

[0050] Figure 4 This is a three-dimensional structural diagram of the gas injection mechanism of the present invention.

[0051] Figure 5 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0052] Figure 6 This is a three-dimensional structural diagram of the water-adding mechanism of the present invention.

[0053] Figure 7 This is a cross-sectional perspective view of the water-filling mechanism of the present invention.

[0054] Figure 8 This is an enlarged three-dimensional structural diagram of point A in the present invention.

[0055] Figure 9 This is a three-dimensional structural diagram of the closed state of the retraction mechanism of the present invention.

[0056] Figure 10 This is a three-dimensional structural diagram of the shrinkage mechanism of the present invention.

[0057] Figure 11 This is a three-dimensional structural diagram of the retraction mechanism of the present invention in the open state.

[0058] Figure 12 This is a three-dimensional structural diagram of the balancing mechanism of the present invention.

[0059] Figure 13 This is a cross-sectional three-dimensional structural diagram of the balancing mechanism of the present invention.

[0060] The components in the attached diagram are labeled as follows: 1_Heating base, 2_Water tank, 3_First support frame, 4_Guide sleeve, 5_Hexagonal slide groove, 6_Adjusting mechanism, 61_Support block, 62_Lead screw, 63_Threaded sleeve, 64_Handwheel, 7_Air injection mechanism, 71_Dual-shaft motor, 72_Centrifugal fan, 73_Air pipe, 74_First one-way valve, 8_Clamping mechanism, 81_Guide rod, 82_Clamping plate, 83_First compression spring 9_Water filling mechanism, 91_Crank, 92_First piston, 93_Piston cylinder, 94_Outlet pipe, 95_Inlet pipe, 96_Second check valve, 97_Third check valve, 10_Retraction mechanism, 101_Slider, 102_Connecting column, 103_Synchronizing plate, 104_Handle, 11_Balancing mechanism, 111_Support cylinder, 112_Second support frame, 113_Second piston, 114_Second compression spring. Detailed Implementation

[0061] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0062] Example 1

[0063] A device for testing the effect of lens heating defrosting and defogging, such as Figure 1-4As shown, the device includes a heating base 1, a water tank 2, a first support frame 3, guide sleeves 4, an adjustment mechanism 6, a support block 61, a lead screw 62, a threaded sleeve 63, a handwheel 64, an air injection mechanism 7, a dual-shaft motor 71, a centrifugal fan 72, an air pipe 73, and a first one-way valve 74. The water tank 2 is welded to the upper part of the heating base 1 and is used to store water. Three guide sleeves 4 are evenly welded to the upper circumference of the water tank 2. The first support frame 3 is slidably connected inside the three guide sleeves 4. The lower part of the first support frame 3 is slidably connected to the water tank 2. An adjustment mechanism 6 is connected to the upper front side of the water tank 2 and the upper front side of the first support frame 3. The adjustment mechanism 6 is used to adjust the height of the lens. An air injection machine is connected to the lower right side of the water tank 2. The structure includes an air injection mechanism 7 to assist in accelerating the rise of water vapor. A support block 61 is welded to the upper front side of the water tank 2, and a threaded sleeve 63 is welded to the lower front side of the first support frame 3. A lead screw 62 is threadedly connected inside the threaded sleeve 63. The top of the lead screw 62 is rotatably connected to the support block 61, and a handwheel 64 is connected to the bottom of the lead screw 62. A dual-shaft motor 71 is bolted to the lower right rear side of the water tank 2, and a centrifugal fan 72 is bolted to the lower right rear side of the water tank 2. The output shaft of the dual-shaft motor 71 is connected to the impeller inside the centrifugal fan 72. An air pipe 73 is connected to the lower right side of the water tank 2. The rear end of the air pipe 73 is connected to the centrifugal fan 72, and a first one-way valve 74 is connected to the middle of the front side of the air pipe 73.

[0064] In use, place the lens on the upper part of the first support frame 3, fill the water tank 2 with an appropriate amount of water, and then start the heating base 1. The heating base 1 heats the water, causing it to boil and produce steam. Start the dual-axis motor 71. The output shaft of the dual-axis motor 71 drives the centrifugal fan 72 to start, causing the centrifugal fan 72 to blow air into the water tank 2 through the pipe, accelerating the boiling of the water and producing a large amount of steam. This avoids slow heating and insufficient steam, which would lead to low testing efficiency. At the same time, the steam rises rapidly to the lens. Under the action of the first one-way valve 74, the water in the water tank 2 will not enter the centrifugal fan 72 through the air pipe 73. Under large temperature differences, the lens will fog up when heated. After fogging, the staff observes the defogging effect of the lens. If the lens fogs up... If the fogging lasts only a short time, it indicates a good defogging effect. A good defogging effect means that frost will not form due to unremoved fog, indicating a good defrosting effect. If the fog on the lens condenses into water droplets, it indicates a poor defogging effect. The fog cannot be removed in time, and frost will form when it gets cold, indicating a poor defrosting effect. The operator manually rotates the handwheel 64 to drive the lead screw 62 to rotate in both directions. Under the action of the threaded sleeve 63, the lead screw 62 drives the support block 61 and the first support frame 3 to move up and down, thereby moving the lens up and down for adjustment. This facilitates testing of lenses with different heat resistance levels. At the same time, moving the lens downwards allows water vapor to come into more concentrated contact with the lens, thus improving the testing effect of lenses with higher heat resistance. After the test is completed, the dual-axis motor 71 is turned off.

[0065] Example 2

[0066] Based on Example 1, such as Figure 1 and Figure 5 As shown, it also includes a clamping mechanism 8, which is used to clamp the lens. The clamping mechanism 8 includes a clamping piece 82, a guide rod 81 and a first compression spring 83. The guide rod 81 is welded to the front side of the upper part of the first support frame 3. The clamping piece 82 is slidably connected to the middle of the guide rod 81. The clamping piece 82 is used to clamp the lens. The first compression spring 83 is sleeved on the guide rod 81. The two ends of the first compression spring 83 are respectively connected to the upper part of the guide rod 81 and the top of the clamping piece 82. When the lens needs to be loaded, manually move the clamp 82 upwards. At this time, the first compression spring 83 is compressed. Then place the lens on the upper part of the first support frame 3, and then slowly release the clamp 82. The first compression spring 83 slowly returns to its original position, causing the clamp 82 to slowly move downwards and return to contact the lens. Under the action of the first compression spring 83, the clamp 82 clamps and fixes the lens, preventing the lens from shaking when moving up and down, or from detaching from the first support frame 3 and falling onto the water tank 2, thus increasing the stability of the lens. When the lens needs to be removed, repeat the above operation to remove the lens.

[0067] like Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, it also includes a water-filling mechanism 9, which is used to automatically add water to the water tank 2. The water-filling mechanism 9 includes a crank 91, a first piston 92, a piston cylinder 93, a water outlet pipe 94, a water inlet pipe 95, a second one-way valve 96, and a third one-way valve 97. The upper part of the output shaft on the upper side of the dual-shaft motor 71 is connected to the crank 91. The piston cylinder 93 is welded to the lower right side of the water tank 2. The piston cylinder 93 is used to temporarily store water. The first piston 92 is slidably connected inside the piston cylinder 93. The first piston 92 is used to draw and push water. The right side of the first piston 92 is slidably connected to the crank 91. The lower left side of the piston cylinder 93 is connected to the lower right side of the water tank 2, and the upper left side of the piston cylinder 93 is connected to the water inlet pipe 95. The right side of the water outlet pipe 94 is connected to the second one-way valve 96, and the lower right side of the water inlet pipe 95 is connected to the third one-way valve 97. When the worker connects the inlet pipe 95 to the external water pipe, and the dual-shaft motor 71 starts, the output shaft on the upper side of the dual-shaft motor 71 drives the crank 91 to rotate, causing the first piston 92 to move left and right. When the first piston 92 moves to the right, it draws water from the inlet pipe 95 into the piston cylinder 93. Under the action of the second one-way valve 96, water in the water tank 2 will not be drawn into the piston cylinder 93 through the outlet pipe 94. When the first piston 92 moves to the left, it pushes water in the piston cylinder 93 into the water tank 2 through the outlet pipe 94. Under the action of the third one-way valve 97, water will not flow back through the inlet pipe 95. By repeating this process, automatic water replenishment can be achieved, avoiding the water in the water tank 2 from evaporating too quickly and causing the worker to need to replenish water frequently, thereby reducing the worker's labor intensity.

[0068] like Figure 1 , Figure 2 , Figure 9 and Figure 10As shown, it also includes a retraction mechanism 10, which is used to close the water tank 2. The retraction mechanism 10 includes a slider 101, a connecting post 102, a synchronization plate 103, and a handle 104. A hexagonal groove 5 is opened on the top of the water tank 2. Six connecting posts 102 are slidably connected in the hexagonal groove 5. A slider 101 is welded to the middle of each of the six connecting posts 102. The slider 101 is used to close the water tank 2. The slider 101 contacts the top of the water tank 2. A synchronization plate 103 is slidably connected between the upper parts of the six connecting posts 102. A handle 104 is welded to the front side of the synchronization plate 103. During heating, water vapor is temporarily stored in water tank 2. When testing the lens, manually grasp handle 104 and move it to rotate synchronous plate 103. Synchronous plate 103 drives connecting column 102 to move. Under the guidance of hexagonal slide groove 5, slider 101 moves outward, so that slider 101 no longer blocks water vapor, allowing water vapor to float out of water tank 2 and contact the lens for testing. This avoids water vapor loss and allows water vapor to contact the lens more concentratedly, improving the testing effect. After testing, move handle 104 in the opposite direction to rotate synchronous plate 103. Synchronous plate 103 drives connecting column 102 and slider 101 to move inward and reset, closing water tank 2 again to prevent water vapor loss.

[0069] like Figure 1 , Figure 12 and Figure 13 As shown, it also includes a balancing mechanism 11, which is used to prevent excessive pressure inside the water tank 2. The balancing mechanism 11 includes a support cylinder 111, a second support frame 112, a second piston 113, and a second compression spring 114. The support cylinder 111 is connected to the left side of the middle part of the water tank 2, and the second support frame 112 is connected to the left side of the support cylinder 111. The second piston 113 is slidably connected to the middle part of the second support frame 112 and the inside of the support cylinder 111. The second compression spring 114 is sleeved in the middle part of the second piston 113, and the two ends of the second compression spring 114 are respectively connected to the right side of the second support frame 112 and the right side of the second piston 113. When there is too much water vapor inside the water tank 2, resulting in excessive pressure, the water vapor pushes the second piston 113 to the left. At this time, the second compression spring 114 is compressed, causing the water vapor to be discharged from the support cylinder 111. When the pressure inside the water tank 2 is less than the external pressure, the second compression spring 114 returns to its original position, driving the second piston 113 to move to the right and reset, thus blocking the support cylinder 111 again. In this way, the excessive pressure inside the water tank 2 can be avoided from causing an explosion, improving the safety of the device.

[0070] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A lens heating defrosting and demisting effect testing device, characterized by comprising: a heating base (1); a water tank (2) connected to the upper part of the heating base (1) for storing water; three guide sleeves (4) connected to the upper part of the water tank (2) uniformly in circumference; a first support frame (3) slidably connected inside the three guide sleeves (4), and the lower part of the first support frame (3) is slidably connected with the water tank (2); an adjusting mechanism (6) connected to the front upper side of the water tank (2) and the front lower side of the first support frame (3) for adjusting the height of the lens, rotating the adjusting mechanism (6) drives the first support frame (3) to move up and down, and the first support frame (3) drives the lens to move up and down, so as to test the heat resistance of different lenses; an air injection mechanism (7) connected to the lower right side of the water tank (2) for assisting the accelerated upward of water vapor, starting the air injection mechanism (7) to send air into the water tank (2) to accelerate the boiling of water, generate a large amount of water vapor, and drive the water vapor to accelerate upward to contact with the lens, so as to prevent the test efficiency from being affected by the long heating time; the air injection mechanism (7) comprises: a double-shaft motor (71) connected to the lower right rear side of the water tank (2); a centrifugal fan (72) connected to the lower right rear side of the water tank (2), and the output shaft on the lower side of the double-shaft motor (71) is connected with the impeller inside the centrifugal fan (72); an air pipe (73) connected to the lower right side of the water tank (2), and the rear end of the air pipe (73) is connected with the centrifugal fan (72), by starting the double-shaft motor (71) to drive the impeller inside the centrifugal fan (72) to rotate, air is sent into the water tank (2) through the air pipe (73) to accelerate the boiling of water, and a large amount of water vapor is generated to accelerate the test efficiency; a first one-way valve (74) connected to the front side of the air pipe (73); and further comprising a water filling mechanism (9) for automatically filling water in the water tank (2), the water filling mechanism (9) comprises: a crank (91) connected to the upper part of the output shaft of the double-shaft motor (71); a piston cylinder (93) connected to the lower right side of the water tank (2) for temporarily storing water; a first piston (92) slidably connected inside the piston cylinder (93) for pumping and pushing water, and the right side of the first piston (92) is slidably connected with the crank (91); a water outlet pipe (94) connected to the lower left side of the piston cylinder (93) and the lower right side of the water tank (2); a water inlet pipe (95) connected to the upper left side of the piston cylinder (93), by moving the first piston (92) left and right to pump and push water, the water enters the piston cylinder (93) through the water inlet pipe (95), and then enters the water tank (2) through the water outlet pipe (94), so as to automatically fill water in the water tank (2); a second one-way valve (96) connected to the right side of the water outlet pipe (94); a third one-way valve (97) connected to the lower right side of the water inlet pipe (95). Also include the closing mechanism (10) for closing the water tank (2), the closing mechanism (10) includes: Connecting column (102), the water tank (2) top open six hexagonal chute (5), six hexagonal chute (5) is connected with six connecting column (102) in sliding mode, through the connecting column (102) moves, six hexagonal chute (5) is guided to the connecting column (102), for driving the slider (101) to move to the outside no longer close the water tank (2); Slider (101), six connecting column (102) middle part is connected with the slider (101) for closing the water tank (2), the slider (101) and the water tank (2) top contact; Synchronous plate (103), six connecting column (102) upper part is connected with the synchronous plate (103) in sliding mode; Handle (104), the synchronous plate (103) front side is connected with the handle (104).

2. The lens heating defrosting and defogging effect testing device according to claim 1, characterized in that: Adjusting mechanism (6) includes: Supporting block (61), the water tank (2) front upper side is connected with the supporting block (61); Lifting assembly, the first support frame (3) lower front side is connected with the lifting assembly for adjusting the height of the first support frame (3), rotating the lifting assembly, driving the supporting block (61) and the first support frame (3) moves up and down, for testing different heat resistance lenses, the lifting assembly top and the supporting block (61) are rotatably connected.

3. The lens heating defrosting and defogging effect testing device according to claim 2, characterized in that: Lifting assembly includes: Threaded sleeve (63), the first support frame (3) front lower side is connected with the threaded sleeve (63); Lead screw (62), the threaded sleeve (63) is connected with the lead screw (62) in threaded mode, the lead screw (62) top and the supporting block (61) are rotatably connected; Hand wheel (64), the lead screw (62) bottom is connected with the hand wheel (64), by rotating the hand wheel (64) in positive and negative direction, driving the lead screw (62), the supporting block (61) and the first support frame (3) moves up and down, for testing different heat resistance lenses.

4. The lens heating defrosting and defogging effect testing device according to claim 1, characterized in that: Also include the clamping mechanism (8) for clamping the lens, the clamping mechanism (8) includes: Guide rod (81), the first support frame (3) upper front side is connected with the guide rod (81); Clamping piece (82), the guide rod (81) middle part is connected with the clamping piece (82) for clamping the lens in sliding mode; First compression spring (83), the guide rod (81) is sleeved with the first compression spring (83), the two ends of the first compression spring (83) are connected with the upper part of the guide rod (81) and the top of the clamping piece (82), by driving the clamping piece (82) to move down to clamp the lens, for preventing the lens from being separated from the first support frame (3) in the adjusting process of moving up and down.

5. The lens heating defrosting and defogging effect testing device according to claim 1, characterized in that: Also include the balance mechanism (11) for preventing the water tank (2) internal pressure from being too large, the balance mechanism (11) includes: Supporting cylinder (111), the water tank (2) middle left side is connected with the supporting cylinder (111); Second support frame (112), the supporting cylinder (111) left side is connected with the second support frame (112); The second piston (113) is slidably connected with the inner part of the support cylinder (111) in the middle of the second support frame (112), and the water vapor pushes the second piston (113) to move to the left to no longer block the support cylinder (111) through the pressure inside the water tank (2) being greater than the external pressure, so as to release the pressure inside the water tank (2) and prevent explosion caused by excessive pressure; The second compression spring (114) is sleeved with the middle part of the second piston (113), and the two ends of the second compression spring (114) are respectively connected with the right side of the second support frame (112) and the right side of the second piston (113).

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