A physical experiment teaching device with safety protection measures and a method of using the same

Abstract

The present invention relates to the technical field of experimental teaching equipment, specifically to a physical experimental teaching equipment with safety protection measures and a method for using the same, comprising an outer box, a side shaft of the outer box being connected to a box door, and a partition layer being fixedly connected to the top of the outer box. The physical experimental teaching equipment with safety protection measures and a method for using the same, by connecting a gear assembly, can, on the one hand, make a U-shaped reciprocating motion of the water injection plug, thereby fixing the water injection port and the plug, and drive the guard frame to close automatically through a linkage closing assembly, preventing the water injection plug from popping out due to increased water pressure from hitting personnel and equipment, thereby improving the safety of the equipment, and the restricted structure of the water pipe can prevent other personnel from swinging the water spray port at will to cause cleaning pressure, while the water tank can play a role in orderly drainage, and at the same time, the water pipe and the clamp arm have the function of automatic insertion and resetting, which standardizes the insertion depth and facilitates the experimenter's explanation and data recording.

Description

Technical Field

[0001] The present invention relates to the technical field of experimental teaching equipment, and in particular to a physical experimental teaching equipment with safety protection measures and a use method thereof. Background Art

[0002] The physical water pressure test is to observe the stress on the bottle body and the pressure it can withstand during the continuous injection of water by continuously injecting water into the bottle body until the cork is pushed out.

[0003] The existing water pressure test device needs to be manually inserted and then filled with water when injecting water to increase the pressure. After the pressure of the water pipe and the bottle stopper increases to a certain level, the water pressure will spray out, which is easy to cause damage to the surrounding area. After the bottle stopper sprays out, water will splash everywhere, which is inconvenient to clean. The splashing water stains may cause slips and electric shocks in the surrounding area. Moreover, the water pipe cannot be automatically inserted and recovered, and there is no limit device, which makes it easy for others to unplug it to play, resulting in a waste of water resources and splashing water, posing a safety hazard.

[0004] In view of this, we propose a physical experiment teaching equipment with safety protection measures and a method of using it. Summary of the invention

[0005] The purpose of the present invention is to provide a physical experiment teaching equipment with safety protection measures and a method of using the same, so as to solve the problem proposed in the above background technology that after the pressure of the existing water-filled water pipes and bottle stoppers increases to a certain level, the water pressure will spray out, which is easy to cause damage to the surroundings, and after the bottle stoppers are sprayed out, water will splash everywhere, which is inconvenient to clean and the splashing water stains will cause the possibility of slipping and electric shock in the surroundings. Moreover, the water pipe cannot be automatically plugged in and recovered, and there is no limiting device, which makes it easy for others to unplug it to play, resulting in a waste of water resources and splashing water, posing a safety hazard. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a physical experiment teaching equipment with safety protection measures, comprising an outer box, one side of the outer box is axially connected to a box door, the top of the outer box is fixedly connected to a partition layer, a vertical side of the upper surface of the partition layer is fixedly connected to an observation arc frame, and the other side of the upper surface of the partition layer is provided with a groove structure, and a side of the partition layer close to the observation arc frame is provided with a drainage outlet and the drainage outlet is connected to the inner wall of the groove, and at the same time, one side of the top of the observation arc frame is provided with a slideway structure, the lateral sides of the upper surface of the partition layer are axially connected to a guard frame, and one side of the shaft seat of the guard frame is fixedly connected to the two sides of the observation arc frame, and a press plate structure is provided on the arc surface side of the guard frame away from the observation arc frame, and at the same time, the inner wall of the guard frame is larger than the outer surface of the observation arc frame;

[0006] The interior of the groove of the partition layer is fixedly connected with a water tank, and the bottom inner wall of the water tank is set as a slope structure, and both sides of the partition layer close to the guard frame bearing are set as L-shaped bracket structures, and both sides of the guard frame are built in the L-shaped bracket of the partition layer, and the middle part of the bottom inner wall of the water tank is fixedly connected with a fixing component, and the middle part of the upper surface of the fixing component is movably connected with an experimental bottle, and both ends of the top interface of the experimental bottle are set as slope structures;

[0007] The top inner wall of the outer box is fixedly connected with a water tank, the bottom of one side of the water tank is connected with a booster assembly through a pipeline, the top of the booster assembly is fixedly connected with a water pipe, and the side surface of the water pipe is sequentially sleeved with a sliding sleeve structure, and one end of the water pipe close to the top inner wall of the outer box is provided with a spring structure, and the connection between the outer box and the partition layer is set as a through-opening structure;

[0008] One end of the water pipe extending to the separation layer opening is fixedly connected to a water injection plug, and the side surface of one end of the water pipe extending to the separation layer opening is slidably connected in the slideway at the top of the observation arc frame, and the upper and lower ends of the water injection plug are set as slot structures, and the side surfaces of the upper and lower ends of the water injection plug are clamped with propulsion components, and the other end of the propulsion component is fixedly connected to a U-shaped motion component, and the U-shaped motion component is rotatably connected to a connecting gear component on one side close to the inner wall of the observation arc frame, and the other end of the connecting gear component is meshingly connected to a linkage closing component.

[0009] Preferably, the fixing assembly includes two clamping walls, the bottoms of the two clamping walls on opposite sides are fixedly connected to a bottom plate, the lower surfaces of the clamping walls and the bottom plate are fixedly connected to the bottom inner wall in the groove of the sink, the middle parts of the two clamping walls on opposite sides are fixedly connected to a side plate, the upper parts of the two clamping walls on opposite sides are fixedly connected to a top plate, and the interior of the top plate is provided with four notches, and the interiors of the four notches are all provided with circular baffle structures, the bottom plate, the side plate and the top plate are fixedly connected to trapezoidal plates on both sides away from the clamping walls, the interiors of the two trapezoidal plates are fixedly connected to positioning slides, the interiors of the two positioning slides are slidably connected to push slide bars, the opposite sides of the two push slide bars are fixedly connected to special-shaped plates, and the two The two locating blocks are slidably connected to the opposite sides of the special-shaped plate, and one end of the opposite side of the two positioning blocks is fixedly connected with a dial plate, and the other end of the two positioning blocks is set to a triangular inclined surface structure, and the middle part of the opposite side of the two positioning blocks is fixedly connected to a limit spring, the side surfaces of the two pushing slide rods are penetrated by an inclined push plate, and the other ends of the two inclined push plates are rotatably connected to the axle seat on the lower surface of the inner support plate, and the four side edges of the inner support plate are rotatably connected with a convergence closing plate, and the middle part of the bottom plate is fixedly connected with a downward pressing telescopic rod, and the top of the downward pressing telescopic rod penetrates through one end of the inner support plate and is fixedly connected with a special-shaped block, and the top inner walls of the special-shaped block are respectively connected by four spring pressure rods.

[0010] Preferably, the boosting component includes a boosting water pump, one end of the water inlet of the boosting water pump is connected to the bottom of one side of the water tank through a pipe, the bottom of the boosting water pump is fixedly connected to a trigger switch through a wire pipe, and the top of the boosting water pump is fixedly connected to a pipeline gathering box.

[0011] Preferably, the propulsion assembly includes two support rods, one end of the two support rods is fixedly connected to one end of the U-shaped motion assembly, and the lengths of the two support rods are inconsistent, and the other ends of the two support rods are fixedly connected to a rectangular plate, and the upper and lower ends of the other side of the rectangular plate are respectively fixedly connected to an upper clamping fork and a lower clamping telescopic rod, and the end of the lower clamping telescopic rod away from the rectangular plate is fixedly connected to the lower clamping fork, and the bottom of the lower clamping fork is set as two triangular inclined plates, and the side surfaces of the lower clamping telescopic rod and the lower clamping fork on the opposite side are sleeved with extrusion springs.

[0012] Preferably, the U-shaped motion assembly includes a moving slide, which is arranged to be an inclined structure, and the two ends of the moving slide facing the side of the propulsion assembly are respectively fixedly connected to one end of two support rods, and the other sides of the moving slide are respectively fixedly connected to a short sliding bar and a long sliding bar, and the side surfaces of the short sliding bar and the long sliding bar are respectively slidably connected to the slideways of the inner slide and the outer slide, and both ends of the outer slide are fixedly connected to a transverse slide, and the inner slide and the transverse slide are fixedly connected to a supporting pallet on the side away from the propulsion assembly, and the bottom of the supporting pallet is fixedly connected to the upper surface of the partition layer, and transverse clamps are slidably connected in the slideways of the two transverse slides, and traction straight plates are slidably connected inside the two transverse clamps.

[0013] Preferably, the connecting gear assembly includes a traction shaft, one end of the traction shaft passes through the traction straight plate and is fixedly connected to one end of the long sliding rod, the traction shaft is located on the side surface of the other side of the traction straight plate and is slidably connected to the limiting sliding rod, the other end of the limiting sliding rod passes through a positioning rotating rod, the end of the positioning rotating rod away from the limiting sliding rod is fixedly connected to the positioning gear, and the side surface of the positioning rotating rod connected to the positioning gear is sleeved with an L-shaped clamp arm, the inner wall of the L-shaped clamp arm is slidably connected to a reciprocating gear rod, and the other side of the reciprocating gear rod away from the L-shaped clamp arm is meshed and connected to the side surface of the positioning gear, the other end of the reciprocating gear rod is rotatably connected to a main rotating rod, the side surface of the other end of the main rotating rod passes through a middle support plate, and the main rotating rod passes through An upper rotating gear is fixedly connected to one end of the middle support plate, and a double-end rotating gear is meshed and connected below the side surface of the upper rotating gear, and the side surface of the double-end rotating gear connecting rod is fixedly connected to one side of the middle support plate, and the rotating gear at one end of the bottom of the double-end rotating gear is meshed and connected with a driving rotating gear, and the axis center of the driving rotating gear passes through a shaft rod of a driving motor, and the other end circuit of the driving motor is connected to a press switch, and the shaft rod of the driving motor passes through the middle support plate and is fixedly connected with a large bevel gear, and the side surface of the large bevel gear is meshed and connected with a small bevel gear, and a linkage gear rod is fixedly connected at the axis center of the small bevel gear, and a connecting shaft sleeve is penetrated and connected to the side surface of the connection between the small bevel gear and the linkage gear rod, and the other end of the connecting shaft sleeve is fixedly connected to the side surface of the supporting support plate.

[0014] Preferably, the linkage closing assembly includes a bevel gear, the side surface of the bevel gear is meshed with the side surface of the linkage gear rod, the other end of the bevel gear is fixedly connected to a belt gear at the axis center, the side surface of the belt gear is connected to the linkage gear through a connecting belt transmission, the linkage gear is fixedly connected to a clamping joint at the axis center of one end away from the connecting gear assembly, the other end of the clamping joint is clamped with a clamping sleeve, a movable round rod is fixedly connected to the axis center of the other end of the clamping sleeve, and the side surface of the movable round rod is movably connected to the axis center of the guard frame shaft rod, four corner blocks are fixedly connected to the axis center of the other end of the movable round rod, and the guard frame is located on one side of the movable round rod and is set as a bayonet structure of four corner blocks, and a pulling handle is fixedly connected to the axis center of the other end of the four corner blocks.

[0015] Preferably, the physical experiment teaching equipment with safety protection measures comprises the following steps:

[0016] S1. First, pick up the experimental bottle and put it on the upper surface of the special-shaped block and press it down. When the downward telescopic rod at the bottom of the special-shaped block is pressed down together, the shaft seat at the bottom of the inner support plate pushes the inclined push plates on both sides to make the push slide slide along the positioning slide. When the convergence closing plate is pressed down, the convergence closing plate located in the notch of the top plate converges inward along the round rod in the notch, and the four convergence closing plates together clamp and fix the groove in the middle of the experimental bottle;

[0017] S2. The sliding push rod pushes the positioning block and the paddle forward until the positioning block enters the opening of the positioning slideway, and the limit spring is contracted and the two positioning blocks pass through the opening through the triangular inclined surface. When the positioning block is located outside the positioning slideway, it is stuck, and the closing plate remains stuck to the experimental bottle. If the experimental bottle needs to be taken out, the closing plate can be loosened by simply moving the two paddles inwards.

[0018] S3. After placing the experimental bottle, pull the push switch to start the driving motor. After the driving motor starts, the driving gear and the large bevel gear rotate together. The driving gear rotates the upper and lower ends of the double-end gear in turn. The upper part of the rotating double-end gear drives the upper gear and the main rotating rod to rotate. The rotating main rotating rod makes the L-shaped clamp arm continuously mesh with the positioning gear in the L-shaped clamp arm. At this time, the rotating positioning gear pulls the traction straight plate up and down through the limit slide rod and the traction shaft rod;

[0019] S4. Since the transverse clamps at the upper and lower ends of the traction straight plate are located inside the transverse slide plate, the traction straight plate can be moved up and down in addition to the original up and down movement, and the long sliding bar connected to the other end of the traction shaft rod and the short sliding bar are slidably connected to the outer slide plate and the inner slide plate, and the long sliding bar and the moving slide plate at the other end of the short sliding bar drive the support rod and the rectangular plate to move forward. As the rectangular plate moves forward, the other ends of the upper clamping fork and the lower clamping fork are clamped at the upper and lower ends of the water injection plug. When the short sliding bar and the long sliding bar move vertically on the inner and outer slide plates, the bottle mouth of the experimental bottle can be clamped at the bottom of the water injection plug. The triangular inclined plate at the bottom of the lower clamping fork slides to one side along the slope of the bottle mouth of the experimental bottle, and the sliding lower clamping fork shrinks together with the extrusion spring and the lower clamping telescopic rod until it disengages. As the U-shaped motion component reciprocates, the propulsion component is reset and disengaged from the water injection plug.

[0020] S5. At the same time, the rotating large helical teeth mesh and drive the small helical teeth and the linkage gear rod to rotate together. The rotating linkage gear rod drives the bevel gear and the belt gear on the side surface to rotate. Then the belt gear is connected to the belt transmission to make the linkage gear rotate. The guard frame located on the shaft seat begins to close and rotate until the bottom of the guard frame is built on the two side support plates of the partition layer. Then the trigger switch is started. After the booster water pump is started through the wire pipe, water is drawn from the inside of the water tank along the water pipe to the inside of the experimental bottle. After the water pressure is filled, the water injection plug sprays out and the process is always under observation through the observation arc frame. The overflowing water flows into the inner wall slope of the water tank and then is discharged. The sprayed water injection plug automatically resets back and forth with the spring structure of the water pipe in the outer box, which is convenient for the next forward extrusion of the component. At the same time, the pull handle is pulled to make the four corner blocks completely detach from the guard frame, the movable round rod detaches from part of the guard frame, and the card sleeve and the card joint begin to separate, and then the guard frame is pulled open for the next experiment.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, through the water tank and the fixing component, in conjunction with the experimental bottle structure of fixed specifications, the experimental bottle placed on the top of the special-shaped block can be clamped and fixed during the falling process, and as the water pressure increases, the surrounding convergent closing plates will clamp and fix the experimental bottle. The fixing structure maintains the stability of the bottle body and standardizes the position of the bottle, making it convenient for the water filling plug to be connected to the bottle mouth.

[0023] In the present invention, the clamping state of the water injection plug can be maintained by pushing the upper and lower clamping fork structures in the assembly, and the lower clamping fork of the water injection plug can also provide forward stability. As the U-shaped motion assembly performs a reciprocating U-shaped motion, each time the upper and lower clamping forks push the plug to move above the bottle mouth, during the downward pressure, the spring structure of the lower clamping fork causes the clamping fork to retreat, and the top clamping fork continues to apply pressure to the water injection plug and then fixes the plug to inject water.

[0024] In the present invention, the push assembly at one end of the movable slide plate can perform U-shaped movement through the slide bar and the traction straight plate of the U-shaped motion assembly, and the connecting gear assembly can enable the movable slide plate to perform reciprocating movement in coordination with the transverse clamp on the side surface of the traction straight plate.

[0025] In the present invention, by connecting the gear assembly, on the one hand, the water injection plug can be subjected to U-shaped reciprocating motion, thereby fixing the water injection port and the plug, and the protective frame is automatically closed by the linkage closing assembly to prevent the water injection plug that pops out due to increased water pressure from hitting personnel and equipment, thereby improving equipment safety. In addition, the restricted structure of the water pipe can prevent other personnel from swinging the water spray port at will to cause cleaning pressure. At the same time, the water sink can play a role in orderly drainage. At the same time, the water pipe and the clamp arm have the function of automatic insertion and resetting, which standardizes the insertion depth and facilitates experimenters' explanations and data recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a rear view schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a front view schematic diagram of the overall structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the overall internal structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the overall internal structure of the present invention;

[0030] Figure 5 It is a schematic top view of the overall internal structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the external structure of the fixing assembly of the present invention;

[0032] Figure 7 It is a schematic diagram of the internal structure of the fixing assembly of the present invention;

[0033] Figure 8 It is an enlarged schematic diagram of the internal structure of the fixing assembly of the present invention;

[0034] Fig. 9 It is a rear view structural schematic diagram of the propulsion assembly and the U-shaped motion assembly of the present invention;

[0035] Fig.10 It is a front structural schematic diagram of the propulsion assembly and the U-shaped motion assembly of the present invention;

[0036] Fig.11 It is a left-side structural schematic diagram of the connecting gear assembly of the present invention;

[0037] Fig.12 It is a right view structural schematic diagram of the connecting gear assembly of the present invention;

[0038] Fig.13 It is an enlarged structural schematic diagram of the connecting gear assembly of the present invention;

[0039] Fig.14 It is a schematic diagram of the structure of the linkage closing component of the present invention.

[0040] In the figure: 1, outer box; 2, box door; 3, partition layer; 4, observation arc frame; 5, guard frame; 6, water tank; 7, fixing assembly; 701, clamping wall; 702, bottom plate; 703, side plate; 704, trapezoidal plate; 705, positioning slide; 706, push slide rod; 707, special-shaped plate; 708, positioning block; 709, dial plate; 7010, limit spring; 7011, inclined push plate; 7012, inner support plate; 7013, downward telescopic rod; 7014, special-shaped block; 7015, spring pressure rod; 7016, special-shaped block; 7017, special-shaped block; 7018, special-shaped block; 7019, special-shaped block; 710, special-shaped block; 711, special-shaped block; 712, special-shaped block; 713, special-shaped block; 714, special-shaped block; 715, special-shaped block; 716, special-shaped block; 717, special-shaped block; 718, special-shaped block; 719 ... 016, closing plate; 7017, top plate; 8, experimental bottle; 9, water tank; 10, booster assembly; 1001, booster pump; 1002, wire pipe; 1003, trigger switch; 1004, pipeline closing box; 11, water pipe; 12, water injection plug; 13, propulsion assembly; 1301, support rod; 1302, rectangular plate; 1303, upper clamp fork; 1304, lower clamp telescopic rod; 1305, lower clamp fork; 1306, extrusion spring; 14, U-shaped motion assembly; 1401, moving slide; 1 402, short slide bar; 1403, long slide bar; 1404, inner slide bar; 1405, outer slide bar; 1406, horizontal slide bar; 1407, support plate; 1408, horizontal clamp; 1409, traction straight plate; 15, connecting gear assembly; 1501, traction shaft; 1502, limit slide bar; 1503, positioning rotating rod; 1504, L-shaped clamp arm; 1505, reciprocating gear rod; 1506, positioning gear; 1507, main rotating rod; 1508, middle support plate; 1509, upper rotating gear; 1 510, double-end rotating gear; 1511, driving rotating gear; 1512, driving motor; 1513, large helical gear; 1514, small helical gear; 1515, connecting sleeve; 1516, linkage gear rod; 1517, push switch; 16, linkage closing component; 1601, bevel gear; 1602, belt gear; 1603, connecting belt; 1604, linkage gear; 1605, clamping joint; 1606, clamping sleeve; 1607, movable round rod; 1608, four-corner clamping block; 1609, pulling handle. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 14The present invention provides a technical solution: a physical experiment teaching equipment with safety protection measures, comprising an outer box 1, a box door 2 is axially connected to one side of the outer box 1, a partition layer 3 is fixedly connected to the top of the outer box 1, an observation arc frame 4 is fixedly connected to the vertical side of the upper surface of the partition layer 3, and a groove structure is provided on the other side of the upper surface of the partition layer 3, and a drainage port is provided on the side of the partition layer 3 close to the observation arc frame 4, and the drainage port is connected to the inner wall of the groove, and at the same time, one side of the top of the observation arc frame 4 is provided with a slideway structure, and a protective frame 5 is axially connected to the two sides of the upper surface of the partition layer 3, and one side of the shaft seat of the protective frame 5 is fixedly connected to the two sides of the observation arc frame 4, and a pressing plate structure is provided on the arc surface side of the protective frame 5 away from the observation arc frame 4, and at the same time, the inner wall of the protective frame 5 is larger than the outer surface of the observation arc frame 4;

[0043] A water tank 6 is fixedly connected to the inside of the groove of the partition layer 3, and the bottom inner wall of the water tank 6 is set as a slope structure, and both sides of the partition layer 3 close to the bearing of the protective frame 5 are set as L-shaped bracket structures, and both sides of the protective frame 5 are built in the L-shaped bracket of the partition layer 3, and a fixing component 7 is fixedly connected to the middle of the bottom inner wall of the water tank 6, and an experimental bottle 8 is movably connected to the middle of the upper surface of the fixing component 7, and both ends of the top interface of the experimental bottle 8 are set as slope structures;

[0044] The top inner wall of the outer box 1 is fixedly connected with a water tank 9, the bottom of one side of the water tank 9 is connected with a booster assembly 10 through a pipeline, the top of the booster assembly 10 is fixedly connected with a water pipe 11, and the side surface of the water pipe 11 is sequentially sleeved with a sliding sleeve structure, and one end of the water pipe 11 close to the top inner wall of the outer box 1 is provided with a spring structure, and the connection between the outer box 1 and the partition layer 3 is set as a through-opening structure;

[0045] One end of the water pipe 11 extending to the opening of the partition layer 3 is fixedly connected to a water injection plug 12, and the side surface of one end of the water pipe 11 extending to the opening of the partition layer 3 is slidably connected in the slideway at the top of the observation arc frame 4, and the upper and lower ends of the water injection plug 12 are set as slot structures, and the side surfaces of the upper and lower ends of the water injection plug 12 are clamped with a propulsion assembly 13, and the other end of the propulsion assembly 13 is fixedly connected to a U-shaped motion assembly 14, and the U-shaped motion assembly 14 is rotatably connected to a connecting gear assembly 15 on one side close to the inner wall of the observation arc frame 4, and the other end of the connecting gear assembly 15 is meshingly connected to a linkage closing assembly 16.

[0046] The fixing assembly 7 includes two clamping walls 701, the bottom of the two clamping walls 701 on the opposite side is fixedly connected with a bottom plate 702, the lower surfaces of the clamping walls 701 and the bottom plate 702 are fixedly connected to the bottom inner wall of the groove of the water tank 6, the middle of the two clamping walls 701 on the opposite side is fixedly connected with a side plate 703, the upper part of the two clamping walls 701 on the opposite side is fixedly connected with a top plate 7017, and the interior of the top plate 7017 is set with four notches, and the interiors of the four notches are all set with circular baffle structures, the bottom plate 702, the side plate 703 and the top plate 7017 are fixedly connected with trapezoidal plates 704 on both sides away from the clamping walls 701, the interiors of the two trapezoidal plates 704 are fixedly connected with positioning slides 705, the interiors of the two positioning slides 705 are slidably connected with push slides 706, the opposite sides of the two push slides 706 are fixedly connected with special-shaped plates 707, and the two special-shaped plates 707 Two positioning blocks 708 are slidably connected to the opposite sides, and one end of the two positioning blocks 708 on the opposite sides is fixedly connected with a dial plate 709, and the other ends of the two positioning blocks 708 are set to a triangular inclined surface structure, and the middle parts of the two positioning blocks 708 on the opposite sides are fixedly connected with a limiting spring 7010, the side surfaces of the two pushing slide bars 706 are penetrated by an inclined push plate 7011, the other ends of the two inclined push plates 7011 are rotatably connected to the shaft seat on the lower surface of the inner support plate 7012, the four side edges of the inner support plate 7012 are rotatably connected with a convergence closing plate 7016, the middle part of the bottom plate 702 is fixedly connected with a downward pressing telescopic rod 7013, the top of the downward pressing telescopic rod 7013 passes through one end of the inner support plate 7012 and is fixedly connected with a special-shaped block 7014, and the top inner walls of the special-shaped block 7014 are respectively connected by four spring pressure rods 7015 for transmission.

[0047] The boosting component 10 includes a boosting water pump 1001, one end of the water inlet of the boosting water pump 1001 is connected to the bottom of one side of the water tank 9 through a pipe, the bottom of the boosting water pump 1001 is fixedly connected to a trigger switch 1003 through a wire pipe 1002, and the top of the boosting water pump 1001 is fixedly connected to a pipeline collection box 1004.

[0048] The propulsion assembly 13 includes two support rods 1301, one end of the two support rods 1301 is fixedly connected to one end of the U-shaped motion assembly 14, and the lengths of the two support rods 1301 are inconsistent, and the other ends of the two support rods 1301 are fixedly connected to a rectangular plate 1302, and the upper and lower ends of the other side of the rectangular plate 1302 are respectively fixedly connected to an upper clamping fork 1303 and a lower clamping telescopic rod 1304, and one end of the lower clamping telescopic rod 1304 away from the rectangular plate 1302 is fixedly connected to a lower clamping fork 1305, and the bottom of the lower clamping fork 1305 is set as two triangular inclined plates, and the side surface of the lower clamping telescopic rod 1304 and the lower clamping fork 1305 on the opposite side is sleeved with an extrusion spring 1306.

[0049] The U-shaped motion component 14 includes a moving slide 1401, which is set to an inclined structure, and the two ends of the moving slide 1401 facing the propulsion component 13 are respectively fixedly connected to one end of the two support rods 1301, and the other side of the moving slide 1401 is respectively fixedly connected with a short slide bar 1402 and a long slide bar 1403, and the side surfaces of the short slide bar 1402 and the long slide bar 1403 are respectively slidably connected to the slideways of the inner slide 1404 and the outer slide 1405, and both ends of the outer slide 1405 are fixedly connected with a transverse slide 1406, and the inner slide 1404 and the transverse slide 1406 are fixedly connected with a supporting pallet 1407 on the side away from the propulsion component 13, and the bottom of the supporting pallet 1407 is fixedly connected to the upper surface of the partition layer 3, and the slideways of the two transverse slides 1406 are both slidably connected with transverse clamps 1408, and the interiors of the two transverse clamps 1408 are both slidably connected with traction straight plates 1409.

[0050] The connecting gear assembly 15 includes a traction shaft 1501, one end of which passes through the traction straight plate 1409 and is fixedly connected to one end of the long slide bar 1403. The traction shaft 1501 is located on the side surface of the other side of the traction straight plate 1409 and is slidably connected to the limit slide bar 1502. The other end of the limit slide bar 1502 passes through and is connected to a positioning rotating rod 1503. The end of the positioning rotating rod 1503 away from the limit slide bar 1502 is fixedly connected to a positioning gear 1506, and the positioning gear 1506 is fixedly connected to the positioning gear 1506. The side surface of the rotating rod 1503 connected to the positioning gear 1506 is sleeved with an L-shaped clamp arm 1504, and the inner wall of the L-shaped clamp arm 1504 is slidably connected with a reciprocating gear rod 1505, and the other side of the reciprocating gear rod 1505 away from the L-shaped clamp arm 1504 is meshed and connected to the side surface of the positioning gear 1506, and the other end of the reciprocating gear rod 1505 is rotatably connected to the main rotating rod 1507, and the side surface of the other end of the main rotating rod 1507 is penetrated and connected with the middle support plate 1508, and the main rotating rod 1507 penetrates An upper rotating gear 1509 is fixedly connected to one end of the middle supporting plate 1508, and a double-end rotating gear 1510 is meshedly connected to the lower side surface of the upper rotating gear 1509, and the side surface of the connecting rod of the double-end rotating gear 1510 is fixedly connected to one side of the middle supporting plate 1508, and the rotating gear at one end of the bottom of the double-end rotating gear 1510 is meshedly connected to a driving rotating gear 1511, and the axis of the driving rotating gear 1511 passes through the shaft rod of the driving motor 1512, and the other end of the driving motor 1512 is connected to the circuit of the pressing Press switch 1517, the shaft of the driving motor 1512 passes through the middle support plate 1508 and is fixedly connected with the large bevel gear 1513, the side surface of the large bevel gear 1513 is meshingly connected with the small bevel gear 1514, the axis of the small bevel gear 1514 is fixedly connected with the linkage gear rod 1516, and the side surface of the connection between the small bevel gear 1514 and the linkage gear rod 1516 passes through the connecting shaft sleeve 1515, and the other end of the connecting shaft sleeve 1515 is fixedly connected to the side surface of the supporting plate 1407.

[0051] The linkage closing assembly 16 includes a bevel gear 1601, the side surface of the bevel gear 1601 is meshed with the side surface of the linkage gear rod 1516, the other end of the bevel gear 1601 is fixedly connected to the axis with a belt gear 1602, the side surface of the belt gear 1602 is connected to the linkage gear 1604 through the connecting belt 1603, and the linkage gear 1604 is fixedly connected to the axis of one end away from the connecting gear assembly 15 with a clamping joint 1605, and the other end of the clamping joint 1605 is fixedly connected to the axis of the linkage gear 1604. A clamping sleeve 1606 is clamped at the end, a movable round rod 1607 is fixedly connected to the axis of the other end of the clamping sleeve 1606, and the side surface of the movable round rod 1607 is movably connected to the axis of the shaft rod of the protective frame 5, four corner clamping blocks 1608 are fixedly connected to the axis of the other end of the movable round rod 1607, and the protective frame 5 is located on one side of the movable round rod 1607 and is set as a bayonet structure of the four corner clamping blocks 1608, and a pulling handle 1609 is fixedly connected to the axis of the other end of the four corner clamping blocks 1608.

[0052] A physical experiment teaching device with safety protection measures comprises the following steps:

[0053] S1. First, pick up the experimental bottle 8 and place it on the upper surface of the special-shaped block 7014 and press it downward. When the downward-pressing telescopic rod 7013 at the bottom of the special-shaped block 7014 is pressed downward together, the shaft seat at the bottom of the inner support plate 7012 pushes the inclined push plates 7011 on both sides to make the push slide bar 706 slide along the positioning slideway 705. When the convergence closing plate 7016 is pressed downward, the convergence closing plate 7016 located in the notch of the top plate 7017 converges inward along the round rod in the notch, and the four convergence closing plates 7016 together clamp and fix the groove in the middle of the experimental bottle 8;

[0054] S2, the sliding push rod 706 pushes the positioning block 708 and the dial plate 709 forward until the positioning block 708 enters the opening of the positioning slideway 705, and the limit spring 7010 is contracted and the two positioning blocks 708 pass through the opening through the triangular inclined surface, and when the positioning block 708 is located outside the positioning slideway 705, it is stuck, and the closing plate 7016 keeps the experimental bottle 8 stuck. When the experimental bottle 8 needs to be taken out, the closing plate 7016 can be loosened by simply moving the two dial plates 709 inwardly.

[0055] S3. After placing the experimental bottle 8, pull the push switch 1517 to start the driving motor 1512. After the driving motor 1512 is started, the driving gear 1511 and the large bevel gear 1513 rotate together, wherein the driving gear 1511 rotates the upper and lower ends of the double-end gear 1510 in turn, and the upper part of the rotating double-end gear 1510 drives the upper rotating gear 1509 and the main rotating rod 1507 to rotate, and the rotating main rotating rod 1507 makes the L-shaped clamp arm 1504 continuously mesh and rotate the positioning gear 1506 in the L-shaped clamp arm 1504, and at this time, the rotating positioning gear 1506 pulls the traction straight plate 1409 back and forth through the limit slide bar 1502 and the traction shaft 1501 to move up and down;

[0056] S4. Since the transverse clamps 1408 at the upper and lower ends of the traction straight plate 1409 are located inside the transverse slide plate 1406, the traction straight plate 1409 can move up and down in addition to the original up and down movement, and the long slide bar 1403 connected to the other end of the traction shaft 1501 together with the short slide bar 1402 are slidably connected to the outer slide plate 1405 and the inner slide plate 1404, and the long slide bar 1403 together with the moving slide plate 1401 at the other end of the short slide bar 1402 drive the support rod 1301 and the rectangular plate 1302 to move forward, and as the rectangular plate 1302 moves forward, the upper clamping fork 1303 and the lower clamping fork 1303 are moved forward. The other ends of the forks 1305 are clamped at the upper and lower ends of the water injection plug 12. When the short slide bar 1402 and the long slide bar 1403 slide vertically on the inner slide plate 1404 and the outer slide plate 1405, the bottle mouth of the experimental bottle 8 can be clamped at the bottom of the water injection plug 12. The triangular inclined plate at the bottom of the lower clamping fork 1305 slides to one side along the slope of the bottle mouth of the experimental bottle 8. The sliding lower clamping fork 1305 shrinks together with the extrusion spring 1306 and the lower clamping telescopic rod 1304 until it is disengaged. With the reciprocating operation of the U-shaped motion component 14, the propulsion component 13 is reset and disengaged from the water injection plug 12.

[0057] S5. At the same time, the rotating large bevel gear 1513 meshes and drives the small bevel gear 1514 and the linkage gear rod 1516 to rotate together. The rotating linkage gear rod 1516 drives the bevel gear 1601 and the belt gear 1602 on the side surface to rotate. Then the belt gear 1602 is connected through the connecting belt 1603 to make the linkage gear 1604 rotate. The guard frame 5 located on the shaft seat starts to close and rotate until the bottom of the guard frame 5 is built on the two side support plates of the partition layer 3. Then the trigger switch 1003 is started. After the booster pump 1001 is started through the wire pipe 1002, water is pumped from the inside of the water tank 9 along the water pipe 11 to the inside of the experimental bottle 8, and when the water pressure is full, the water injection plug 12 sprays out and the process is always under observation through the observation arc frame 4, and the overflowing water flows into the inner wall slope of the water tank 6 and then is discharged. The sprayed water injection plug 12 automatically resets back and forth with the spring structure of the water pipe 11 in the outer box 1, which is convenient for the next forward movement and extrusion of the pushing component 13. At the same time, the pulling handle 1609 is pulled to make the four corner blocks 1608 completely detach from the protective frame 5, the movable round rod 1607 partially detaches from the protective frame 5, and the clamping sleeve 1606 begins to separate from the clamping joint 1605, and then the protective frame 5 is pulled open for the next experiment.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A physical experiment teaching device with safety protection measures, characterized in that: The outer box (1) comprises an outer box (1), one side of which is axially connected to a box door (2), the top of which is fixedly connected to a partition layer (3), the vertical side of the upper surface of the partition layer (3) is fixedly connected to an observation arc frame (4), and the other side of the upper surface of the partition layer (3) is provided with a groove structure, and the side of the partition layer (3) close to the observation arc frame (4) is provided with a drainage outlet, and the drainage outlet is connected to the inner wall of the groove, and the top side of the observation arc frame (4) is provided with a slideway structure, the lateral sides of the upper surface of the partition layer (3) are axially connected to a guard frame (5), and the shaft seat side of the guard frame (5) is fixedly connected to the two sides of the observation arc frame (4), and the arc surface side of the guard frame (5) away from the observation arc frame (4) is provided with a press plate structure, and the inner wall of the guard frame (5) is larger than the outer surface of the observation arc frame (4); A water tank (6) is fixedly connected to the inside of the groove of the partition layer (3), and the bottom inner wall of the water tank (6) is set as a slope structure, and both sides of the partition layer (3) close to the bearing of the protective frame (5) are set as L-shaped bracket structures, and both sides of the protective frame (5) are built in the L-shaped bracket of the partition layer (3), and a fixing component (7) is fixedly connected to the middle of the bottom inner wall of the water tank (6), and an experimental bottle (8) is movably connected to the middle of the upper surface of the fixing component (7), and both ends of the top interface of the experimental bottle (8) are set as slope structures; The top inner wall of the outer box (1) is fixedly connected to a water tank (9), the bottom of one side of the water tank (9) is connected to a booster assembly (10) via a pipeline, the top of the booster assembly (10) is fixedly connected to a water pipe (11), and the side surfaces of the water pipe (11) are sequentially sleeved with sliding sleeve structures, and a spring structure is provided at one end of the water pipe (11) close to the top inner wall of the outer box (1), and the connection between the outer box (1) and the partition layer (3) is provided as a through-opening structure; One end of the water pipe (11) extending to the opening of the partition layer (3) is fixedly connected to a water injection plug (12), and the side surface of one end of the water pipe (11) extending to the opening of the partition layer (3) is slidably connected to the slideway at the top of the observation arc frame (4), and the upper and lower ends of the water injection plug (12) are configured as slot structures, and the side surfaces of the upper and lower ends of the water injection plug (12) are clamped with a propulsion assembly (13), and the other end of the propulsion assembly (13) is fixedly connected to a U-shaped motion assembly (14), and the U-shaped motion assembly (14) is rotatably connected to a connecting gear assembly (15) on one side close to the inner wall of the observation arc frame (4), and the other end of the connecting gear assembly (15) is meshingly connected to a linkage closing assembly (16); The propulsion assembly (13) comprises two support rods (1301), one end of the two support rods (1301) is fixedly connected to one end of the U-shaped motion assembly (14), and the lengths of the two support rods (1301) are inconsistent. The other ends of the two support rods (1301) are fixedly connected to a rectangular plate (1302), and the upper and lower ends of the other side of the rectangular plate (1302) are respectively fixedly connected to an upper clamping fork (1303) and a lower clamping telescopic rod (1304), and one end of the lower clamping telescopic rod (1304) away from the rectangular plate (1302) is fixedly connected to a lower clamping fork (1305), and the bottom of the lower clamping fork (1305) is set as two triangular inclined plates, and the side surface of the lower clamping telescopic rod (1304) and the lower clamping fork (1305) on the opposite side is sleeved with a compression spring (1306).

2. A physical experiment teaching device with safety protection measures according to claim 1, characterized in that: The fixing assembly (7) comprises two clamping walls (701), the bottom of the two clamping walls (701) on opposite sides being fixedly connected to a bottom plate (702), the lower surfaces of the clamping walls (701) and the bottom plate (702) being fixedly connected to the bottom inner wall of the groove of the water tank (6), the middle of the two clamping walls (701) on opposite sides being fixedly connected to a side plate (703), the upper parts of the two clamping walls (701) on opposite sides being fixedly connected to a top plate (7017), and the interior of the top plate (7017) being provided with four gaps. The bottom plate (702), the side plate (703) and the top plate (7017) are fixedly connected to the two sides away from the clamping wall (701) with trapezoidal plates (704), the interiors of the two trapezoidal plates (704) are fixedly connected to positioning slideways (705), the interiors of the two positioning slideways (705) are slidably connected to push rods (706), the opposite sides of the two push rods (706) are fixedly connected to the special-shaped plates (707), and the two The two sides of the special-shaped plate (707) opposite to each other are slidably connected to two positioning blocks (708), and one end of the two positioning blocks (708) on the opposite side is fixedly connected to a dial plate (709), and the other ends of the two positioning blocks (708) are set as a triangular inclined surface structure, and the middle part of the two positioning blocks (708) on the opposite side is fixedly connected to a limit spring (7010), and the side surfaces of the two pushing slide bars (706) are penetrated and connected to an inclined push plate (7011), and the two inclined push plates (7011) ) is rotatably connected to the shaft seat on the lower surface of the inner support plate (7012), and the four side edges of the inner support plate (7012) are rotatably connected to the closing plate (7016). The middle of the bottom plate (702) is fixedly connected to a downward-pressing telescopic rod (7013), and the top of the downward-pressing telescopic rod (7013) passes through one end of the inner support plate (7012) and is fixedly connected to a special-shaped block (7014). The top inner walls of the special-shaped block (7014) are respectively connected through four spring pressure rods (7015).

3. A physical experiment teaching device with safety protection measures according to claim 1, characterized in that: The boosting assembly (10) comprises a boosting water pump (1001), one end of a water inlet of the boosting water pump (1001) being connected to the bottom of one side of a water tank (9) via a pipeline, the bottom of the boosting water pump (1001) being fixedly connected to a trigger switch (1003) via a wire pipe (1002), and the top of the boosting water pump (1001) being fixedly connected to a pipeline collection box (1004).

4. The physical experiment teaching equipment with safety protection measures according to claim 1 is characterized in that: The U-shaped motion assembly (14) comprises a moving slide (1401), wherein the moving slide (1401) is configured as an inclined structure, and the two ends of the moving slide (1401) facing the propulsion assembly (13) are respectively fixedly connected to one end of two support rods (1301), and the other side of the moving slide (1401) is respectively fixedly connected to a short slide bar (1402) and a long slide bar (1403), and the side surfaces of the short slide bar (1402) and the long slide bar (1403) are respectively connected to the slideways of the inner slide bar (1404) and the outer slide bar (1405). The outer slide (1405) is dynamically connected, both ends of the outer slide (1405) are fixedly connected to a transverse slide (1406), the inner slide (1404) and the transverse slide (1406) are fixedly connected to a support plate (1407) on the side away from the propulsion assembly (13), and the bottom of the support plate (1407) is fixedly connected to the upper surface of the partition layer (3), and the slideways of the two transverse slides (1406) are slidably connected to transverse clamps (1408), and the interiors of the two transverse clamps (1408) are slidably connected to traction straight plates (1409).

5. A physical experiment teaching device with safety protection measures according to claim 4, characterized in that: The connecting gear assembly (15) comprises a traction shaft (1501), one end of which passes through the traction straight plate (1409) and is fixedly connected to one end of the long sliding rod (1403); the traction shaft (1501) is slidably connected to a limiting sliding rod (1502) on the side surface of the other side of the traction straight plate (1409); the other end of the limiting sliding rod (1502) passes through a positioning rotating rod (1503); and the end of the positioning rotating rod (1503) away from the limiting sliding rod (1502) is fixedly connected to a positioning gear (1506). The side surface of the positioning rotating rod (1503) connected to the positioning gear (1506) is sleeved with an L-shaped clamp arm (1504), the inner wall of the L-shaped clamp arm (1504) is slidably connected with a reciprocating gear rod (1505), and the other side of the reciprocating gear rod (1505) away from the L-shaped clamp arm (1504) is meshedly connected to the side surface of the positioning gear (1506), the other end of the reciprocating gear rod (1505) is rotatably connected to the main rotating rod (1507), the side surface of the other end of the main rotating rod (1507) is penetrated and connected with a middle support plate (1508), and the main rotating rod (1507) ) passes through one end of the middle support plate (1508) and is fixedly connected to an upper rotating gear (1509), a double-end rotating gear (1510) is meshedly connected to the lower side surface of the upper rotating gear (1509), and the side surface of the connecting rod of the double-end rotating gear (1510) is fixedly connected to one side of the middle support plate (1508), the rotating gear at one end of the bottom of the double-end rotating gear (1510) is meshedly connected to a driving rotating gear (1511), the axis of the driving rotating gear (1511) passes through the shaft of the driving motor (1512), and the other end of the driving motor (1512) is connected to a circuit The switch (1517) is pressed, the shaft of the driving motor (1512) passes through the middle support plate (1508) and is fixedly connected with a large bevel tooth (1513), the side surface of the large bevel tooth (1513) is meshingly connected with a small bevel tooth (1514), the axis of the small bevel tooth (1514) is fixedly connected with a linkage gear rod (1516), and the side surface of the connection between the small bevel tooth (1514) and the linkage gear rod (1516) passes through a connecting shaft sleeve (1515), and the other end of the connecting shaft sleeve (1515) is fixedly connected to the side surface of the supporting plate (1407).

6. A physical experiment teaching device with safety protection measures according to claim 5, characterized in that: The linkage closing assembly (16) comprises a bevel gear (1601), the side surface of the bevel gear (1601) is meshingly connected with the side surface of the linkage gear rod (1516), the other end of the bevel gear (1601) is fixedly connected to a belt gear (1602) at the axis center, the side surface of the belt gear (1602) is connected to a linkage gear (1604) via a connecting belt (1603), the end of the linkage gear (1604) away from the connecting gear assembly (15) is fixedly connected to a clamping joint (1605) at the axis center, the clamping joint (1605) ) is clamped with a clamping sleeve (1606) at the other end, a movable round rod (1607) is fixedly connected to the axis of the other end of the clamping sleeve (1606), and the side surface of the movable round rod (1607) is movably connected to the axis of the shaft rod of the protective frame (5), four corner clamping blocks (1608) are fixedly connected to the axis of the other end of the movable round rod (1607), and the protective frame (5) is located on one side of the movable round rod (1607) and is provided with a clamping structure of the four corner clamping blocks (1608), and a pulling handle (1609) is fixedly connected to the axis of the other end of the four corner clamping blocks (1608).

7. A method for using a physical experiment teaching device with safety protection measures, using the physical experiment teaching device with safety protection measures as described in any one of claims 1 to 6, characterized in that: The steps include: S1. First, pick up the experimental bottle (8) and place it on the upper surface of the special-shaped block (7014) and press it downward. When the downward-pressing telescopic rod (7013) at the bottom of the special-shaped block (7014) is pressed downward together, the shaft seat at the bottom of the inner support plate (7012) pushes the inclined push plates (7011) on both sides to make the push slide rod (706) slide along the positioning slideway (705). When the convergence closing plate (7016) is pressed downward, the convergence closing plate (7016) located in the notch of the top plate (7017) converges inward along the round rod in the notch, and the four convergence closing plates (7016) together clamp and fix the groove in the middle of the experimental bottle (8); S2, the simultaneously sliding push slide bar (706) pushes the positioning block (708) and the paddle plate (709) forward until the positioning block (708) enters the opening of the positioning slideway (705), and the limit spring (7010) is contracted and the two positioning blocks (708) pass through the opening through the triangular inclined surface, and when the positioning block (708) is located outside the positioning slideway (705), it is stuck, and the contraction closing plate (7016) is also kept stuck to the experimental bottle (8). If the experimental bottle (8) needs to be taken out, the contraction closing plate (7016) can be loosened by simply moving the two paddle plates (709) inwardly to close them; S3, after placing the experimental bottle (8), pull the push switch (1517) to start the driving motor (1512), and after the driving motor (1512) is started, the driving gear (1511) and the large bevel gear (1513) rotate together, wherein the driving gear (1511) rotates the upper and lower ends of the double-end gear (1510) in turn, and the upper part of the rotating double-end gear (1510) drives the upper rotating gear (1509) and the main rotating rod (1507) to rotate, and the rotating main rotating rod (1507) causes the L-shaped clamping arm (1504) to continuously mesh and rotate the positioning gear (1506) inside the L-shaped clamping arm (1504), and at this time, the rotating positioning gear (1506) pulls the traction straight plate (1409) back and forth through the limit slide bar (1502) and the traction shaft rod (1501) to move up and down; S4. Since the transverse clamps (1408) at the upper and lower ends of the traction straight plate (1409) are located inside the transverse slide plate (1406), the traction straight plate (1409) can move up and down in addition to the original up and down movement, and the long slide bar (1403) connected to the other end of the traction shaft (1501) together with the short slide bar (1402) are slidably connected in the outer slide plate (1405) and the inner slide plate (1404), and the long slide bar (1403) together with the moving slide plate (1401) at the other end of the short slide bar (1402) drive the support rod (1301) and the rectangular plate (1302) to move forward, and as the rectangular plate (1302) moves forward, the upper clamping fork (1303) and the lower clamping fork (1303) are moved. The other ends of the forks (1305) are clamped at the upper and lower ends of the water injection plug (12). When the short slide bar (1402) and the long slide bar (1403) slide vertically on the inner slide plate (1404) and the outer slide plate (1405), the mouth of the test bottle (8) can be clamped at the bottom of the water injection plug (12). The triangular inclined plate at the bottom of the lower clamping fork (1305) slides to one side along the slope of the mouth of the test bottle (8). The sliding lower clamping fork (1305) shrinks together with the extrusion spring (1306) and the lower clamping telescopic rod (1304) until it is disengaged. With the reciprocating operation of the U-shaped motion component (14), the propulsion component (13) is reset and disengaged from the water injection plug (12). S5. At the same time, the rotating large bevel gear (1513) meshes and drives the small bevel gear (1514) and the linkage gear rod (1516) to rotate together. The rotating linkage gear rod (1516) drives the bevel gear (1601) and the belt gear (1602) on the side surface to rotate. Then, the belt gear (1602) is connected through the connecting belt (1603) to drive the linkage gear (1604). The guard frame (5) located on the shaft seat starts to close and rotate until the bottom of the guard frame (5) is built on the two side support plates of the partition layer (3). Then, the trigger switch (1003) is activated. After the booster water pump (1001) is started through the wire pipe (1002), water is pumped from the inside of the water tank (9) along the water pipe ( 11) to the inside of the experimental bottle (8), and when the water pressure is full, the water injection plug (12) sprays out and the process is always under observation through the observation arc frame (4). The overflowing water flows into the inner wall slope of the water tank (6) and then is discharged. The sprayed water injection plug (12) automatically resets back and forth with the spring structure of the water pipe (11) in the outer box (1), which is convenient for the next forward movement and extrusion of the push assembly (13). At the same time, the pull handle (1609) is pulled to make the four corner blocks (1608) completely detach from the protective frame (5), the movable round rod (1607) detaches from part of the protective frame (5), and the clamping sleeve (1606) and the clamping joint (1605) begin to separate, and then the protective frame (5) is pulled open to facilitate the next experiment.

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