CN109983940B

CN109983940B - Greenhouse vegetable plants lighting device that prevents floating dust and is in light

Info

Publication number: CN109983940B
Application number: CN201910141000.6A
Authority: CN
Inventors: 沈剑武
Original assignee: Hunan Fresh Fruit Agricultural Development Co ltd
Current assignee: Hunan xiashixiang Agricultural Technology Co.,Ltd.
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2021-04-06
Anticipated expiration: 2039-02-26
Also published as: CN112753407B; CN112753407A; CN109983940A

Abstract

The invention discloses a lighting device for preventing floating dust and blocking light for greenhouse vegetable planting, which structurally comprises a net eave, a blocking net, a light supplementing lighting lamp and a floating dust absorption control foot, wherein the net eave is arranged on the periphery of the blocking net, the floating dust absorption control foot comprises a soil stabilizing foot, an oil cavity net pulling groove, a top fixing end and a lighting expansion cover, the top end of the soil stabilizing foot penetrates through the bottom end of the oil cavity net pulling groove, when the external floating dust is serious, the soil stabilizing foot floats into a greenhouse to influence the effect of light supplementing lighting, the device can be arranged on the periphery of a Chinese cabbage to cover the Chinese cabbage, when the device is placed, an embedded tooth and a blocking body are subjected to the resistance of soil to drive a thread to drive a sleeve to rotate, so that a rotary inserted rod of the device is screwed out along a limiting outlet, initially, a reverse pull buckle of the device is clamped in a forward rod to hook the soil, the reverse pull buckle of the device is separated from the forward rod only by multi-point force, and a main buckle head of the device is used for unfolding a stress shaft, therefore, the barrier net can surround the periphery of the Chinese cabbage, so that the cultivation of the Chinese cabbage can be smoothly carried out.

Description

Greenhouse vegetable plants lighting device that prevents floating dust and is in light

Technical Field

The invention belongs to the field of agriculture, and particularly relates to a floating dust prevention and light blocking lighting device for greenhouse vegetable planting.

Background

In the drier area in the north, because external weather is not too suitable for planting chinese cabbage, so when general north need plant chinese cabbage, all plant through the big-arch shelter, can simulate weather and temperature, plant, but also can put through to some extent with the external world, make it can ventilate, the weather of floating dust often can appear in the north, its visibility is lower, pollute comparatively seriously, to the sunlight that originally can shine the big-arch shelter, shelter from, sunshine is weak, because there is the opening that puts through to some extent with the external world in the big-arch shelter, its floating dust just can run into in the big-arch shelter.

Based on the discovery of the inventor, the existing agricultural greenhouse lighting device mainly has the following defects, such as:

the floating dust floats into the greenhouse, so that the illumination of emergency illuminating lamps on the cabbages is influenced, the sunlight illumination is lacked, illuminating lamps simulating the sunlight in the greenhouse are lacked, and the yield of the cabbages is easily influenced if the weather lasts for a long time.

Therefore, it is necessary to provide a lighting device for preventing floating dust and blocking light in greenhouse vegetable planting.

Disclosure of Invention

The problem that floating dust in the greenhouse also affects the irradiation of emergency illuminating lamps on the cabbages, lacks the irradiation of sunlight and lacks irradiation lamps simulating the sunlight in the greenhouse, and the yield of the cabbages is easily affected if the weather lasts for a long time is solved.

The invention relates to a purpose and an effect of a lighting device for preventing floating dust and blocking light in greenhouse vegetable planting, which are achieved by the following specific technical means:

the structure of the floating dust absorption control device comprises a net eave, a blocking net, a light supplementing illuminating lamp and floating dust absorption control feet.

The net eave is installed at the periphery of the blocking net, the floating dust absorption control pins are uniformly distributed in a circular shape and are installed on the outer ring of the light supplementing illuminating lamp, and the blocking net penetrates through the inner portion of the floating dust absorption control pins.

The floating dust absorption control foot comprises a soil stabilizing foot, an oil cavity net pulling groove, a top fixing end and a lighting expansion cover, wherein the top end of the soil stabilizing foot penetrates through the bottom end of the oil cavity net pulling groove, the top fixing end is installed at one end, far away from the soil stabilizing foot, of the oil cavity net pulling groove, and the lighting expansion cover is installed between the oil cavity net pulling grooves.

As a further improvement of the invention, the soil stabilizing foot comprises a thread driving sleeve, a return spring, a soft buckle, a connecting rod, a unscrewing clamping wheel, an embedded tooth, a pushing line and a blocking body, wherein the outer ring of the pushing line is meshed with the thread driving sleeve, the return spring is arranged at the top end of the blocking body, the three soft buckles are in one group, the connecting rod is positioned at the right side of the soft buckle, the unscrewing clamping wheel is arranged on the outer ring of the thread driving sleeve, the two embedding teeth are provided with the pushing line, and the soft buckle is in a cone with radian.

As a further improvement of the invention, the unscrewing clamping wheel comprises a main control shaft, side auxiliary shafts, rotary insertion rods and limit outlets, wherein the side auxiliary shafts are uniformly distributed in a circular shape and embedded in the outer ring of the main control shaft, one ends of the rotary insertion rods, far away from the main control shaft, are arranged in the rotary insertion rods, the rotary insertion rods are positioned in the limit outlets and are movably connected, and five rotary insertion rods are arranged.

As a further improvement of the present invention, the rotary insertion rod includes two retraction slots, two snap-in retraction rods and a main rod, the two retraction slots are embedded in an outer ring of the main rod, the snap-in retraction rods are mounted in the retraction slots and are connected by hinges, and the snap-in retraction rods are six.

As a further improvement of the invention, the buckle return rod comprises a reverse pull buckle, a main buckle head, a stress shaft and a forward rod, wherein the left end of the reverse pull buckle is welded with the right end of the main buckle head, the main buckle head is hinged with the forward rod through the stress shaft, and the main buckle head is of a hook-shaped structure.

As a further improvement of the invention, the oil cavity netting groove comprises a dust suction ball, a weighted buckle and an oil groove, the dust suction ball is embedded in the inner groove of the oil groove and is movably connected with the inner groove, the weighted buckle is positioned below the dust suction ball, and the oil groove is a bevel round groove body.

As a further improvement of the invention, the heavy buckle comprises a pressing and releasing plate, a groove to be moved and a return plate, wherein the return plate is installed at the right end of the pressing and releasing plate, the groove to be moved is arranged above the pressing and releasing plate, and the groove to be moved is of a leaf shape structure.

As a further improvement of the invention, the oil groove comprises an inclined opening, a dust absorption sliding body and a sliding oil groove, the inclined opening is communicated with the sliding oil groove, the dust absorption sliding body is embedded in an inner groove of the sliding oil groove and movably connected with the inner groove, and the inclined opening is inclined to the horizontal plane by 225 degrees.

As a further improvement of the invention, the dust collection sliding body comprises a grease outlet, a dust collection groove, a connecting block and an oil storage grid, the grease outlet is communicated with the oil storage grid, one end of the grease outlet, which is far away from the oil storage grid, is connected with the dust collection groove, the oil storage grid is arranged in the connecting block, and the dust collection groove is of an arc groove structure.

Compared with the prior art, the invention has the following beneficial effects:

when the external dust floating day is serious and the dust floats into the shed, the light filling and lighting effects are influenced, the device can be arranged at the periphery of the Chinese cabbage to cover the Chinese cabbage, the embedded teeth and the blocking bodies can be subjected to the resistance of soil when the Chinese cabbage is placed, the thread driving sleeve is driven to rotate, the rotating inserted rod can be screwed out along the limiting outlet, the buckling rod can be contracted into the retraction groove at the beginning, when the Chinese cabbage grows, the outer frame of the Chinese cabbage can be stressed, the connecting rod can move to the next soft buckle, when the bottom foot shakes, the forward rod can be unfolded reversely, the reverse pulling buckle is clamped in the forward rod to hook the soil, the reverse pulling buckle is separated from the forward rod only by multi-purpose force, the main buckle head can be unfolded along the stress shaft, the Chinese cabbage can be taken out easily, when the dust floats, the oil juice extruded by the oil storage grid through the oblique opening can be sucked into the dust absorption groove, originally with can press the power that the release board is flat, it can press the release board will be to its return plate extrusion, makes its linking piece drive the net eaves and down stimulates along the oil groove to keep off the net and will surround around chinese cabbage, make its superficial dirt can not float, the operation that the light filling light at top can be smooth, can not influence the light filling name of shining because the weather of superficial dirt has influenced the sun illumination also simultaneously, make going on that its chinese cabbage cultivates can be smooth.

Drawings

Fig. 1 is a schematic structural view of a lighting device for preventing floating dust and blocking light in greenhouse vegetable planting according to the present invention.

Fig. 2 is a schematic front view of the internal structure of the floating dust absorption control pin of the illumination device for preventing floating dust and blocking light in greenhouse vegetable planting according to the present invention.

Fig. 3 is a schematic front view of an internal structure of a soil stabilization foot of the illumination device for preventing floating dust and blocking light in greenhouse vegetable planting.

FIG. 4 is a schematic top view of the inside structure of the illumination device for preventing floating dust and blocking light in greenhouse vegetable planting according to the present invention.

Fig. 5 is a schematic front view of the internal structure of the rotary inserted link of the illumination device for preventing floating dust and blocking light in greenhouse vegetable planting according to the present invention.

Fig. 6 is a schematic front view of the internal structure of the lighting device for preventing floating dust and blocking light in greenhouse vegetable planting according to the present invention.

Fig. 7 is a schematic front view of an internal structure of an oil cavity net-pulling groove of the lighting device for preventing floating dust and blocking light in greenhouse vegetable planting.

Fig. 8 is a schematic front view of the interior structure of the lighting device for preventing floating dust and blocking light in greenhouse vegetable planting according to the invention.

Fig. 9 is a schematic diagram of the right-view internal structure of the oil tank of the illumination device for preventing floating dust and blocking light in greenhouse vegetable planting according to the invention.

FIG. 10 is a schematic front view of the inside structure of the dust-absorbing slider of the illumination device for preventing floating dust and blocking light in greenhouse vegetable planting

In the figure: a net eave-1, a blocking net-2, a light-supplementing illuminating lamp-3, a floating dust absorption control foot-4, a soil stabilizing foot-41, an oil cavity net-pulling groove-42, a top fixing end-43, a lighting expanding cover-44, a thread driving sleeve-411, a return spring-412, a soft buckle-413, a connecting rod-414, a unscrewing clamping wheel-415, an embedding tooth-416, a pushing line-417, a blocking body-418, a main control shaft-4151, a side auxiliary shaft-4152, a rotary inserted rod-4153 and a limit outlet-4154, the oil storage device comprises a retraction groove-41531, a snap return rod-41532, a main rod-41533, a reverse pull buckle-415321, a main buckle head-415322, a stress shaft-415323, a forward rod-415324, a dust absorption ball-421, a heavy buckle-422, an oil groove-423, a pressure release plate-4221, a standby groove-4222, a return plate-4223, an inclined opening-4231, a dust absorption sliding body-4232, a sliding oil groove-4233, a grease outlet-42321, a dust absorption groove-42322, a connecting block-42323 and an oil storage grid-42324.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 10:

the invention provides a lighting device for preventing floating dust and blocking light in greenhouse vegetable planting, which structurally comprises a net eave 1, a blocking net 2, a light supplementing and illuminating lamp 3 and floating dust absorption control feet 4.

The net eave 1 is installed at the periphery of the floating dust absorption control foot 4, is in a circular shape and is evenly distributed and installed on the outer ring of the light supplement illuminating lamp 3, and the blocking net 2 penetrates through the inside of the floating dust absorption control foot 4.

The floating dust absorption control foot 4 comprises a soil stabilizing foot 41, an oil cavity net pulling groove 42, a top fixing end 43 and an illumination expanding cover 44, the top end of the soil stabilizing foot 41 penetrates through the bottom end of the oil cavity net pulling groove 42, the top fixing end 43 is installed at one end, far away from the soil stabilizing foot 41, of the oil cavity net pulling groove 42, and the illumination expanding cover 44 is installed between the oil cavity net pulling grooves 42.

Wherein, the soil stabilizing foot 41 comprises a thread driving sleeve 411, a return spring 412, a soft buckle 413, an engagement rod 414, a unscrewing clamp wheel 415, an embedding tooth 416, a pushing thread 417 and a blocking body 418, the outer ring of the pushing thread 417 is engaged with the thread driving sleeve 411, the return spring 412 is installed at the top end of the blocking body 418, three soft buckles 413 are in one group, the engagement rod 414 is positioned at the right side of the soft buckle 413, the unscrewing clamp wheel 415 is installed at the outer ring of the thread driving sleeve 411, two embedding teeth 416 are provided with the pushing thread 417, the soft buckle 413 is in a cone with radian, the engagement rod 414 can move to the next soft buckle 413 under the pushing force, when no external force exists, the soft buckle 413 can limit the position without sliding, the blocking body 418 and the embedding tooth 416 are clamped on the soil surface, the blocking body 418 can press the pushing thread 417 inwards under the force, thereby can promote the screw thread of outer lane and drive cover 411 and unscrew card wheel 415 and rotate in the soil and open, block in soil, make its footing can be more stable.

The unscrewing clamping wheel 415 comprises a main control shaft 4151, side auxiliary shafts 4152, rotating insertion rods 4153 and limiting outlets 4154, the side auxiliary shafts 4152 are uniformly embedded in the outer ring of the main control shaft 4151 in a circular shape, one end of each rotating insertion rod 4153, which is far away from the main control shaft 4151, is mounted inside the corresponding rotating insertion rod 4153, the corresponding rotating insertion rods 4153 are located inside the corresponding limiting outlets 4154 and movably connected, five rotating insertion rods 4153 are arranged, the main control shaft 4151 is forced to rotate and brings out the rotating insertion rods 4153, and the limiting outlets 4154 can limit the rotating direction of the rotating insertion rods 4153, so that the rotating of the rotating insertion rods 4153 cannot be deviated, and the rotating insertion rods can be uniformly dispersed and are more stable.

The rotating insertion rod 4153 comprises a retraction groove 41531, a snap-back rod 41532 and a main rod 41533, wherein the retraction groove 41531 is provided with two parts which are embedded in the outer ring of the main rod 41533, the snap-back rod 41532 is arranged in the retraction groove 41531 and is hinged to the retraction groove 41532, six snap-back rods 41532 are provided, when the main rod 41533 is deep into soil, the snap-back rod 41532 is pressed into the retraction groove 41531 in a smooth manner, so that the main rod 41533 can smoothly enter, if the main rod 41533 shakes or is dragged outwards, the snap-back rod 41532 is unfolded and clamped in the soil, and the main rod 41533 cannot be taken out with small force.

The buckle return rod 41532 comprises a reverse pull buckle 415321, a main buckle head 415322, a stressed shaft 415323 and a forward rod 415324, the left end of the reverse pull buckle 415321 is welded with the right end of the main buckle head 415322, the main buckle head 415322 is hinged to the forward rod 415324 through the stressed shaft 415323, the main buckle head 415322 is of a hook-shaped structure, when the forward rod 415324 is dragged reversely by an external blocking object, the reverse pull buckle 415321 is clamped inside and is difficult to drag, and unless a point is forced, the reverse pull buckle 415321 is pulled out, the main buckle head 415322 is unscrewed along the stressed shaft 415323, and the main buckle can be easily taken out.

The oil chamber netting groove 42 includes a dust suction ball 421, a weight button 422, and an oil groove 423, the dust suction ball 421 is embedded in the inner groove of the oil groove 423 and movably connected, the weight button 422 is located below the dust suction ball 421, the oil groove 423 is a bevel round groove body, the original gravity of the dust suction ball 421 is level with the weight button 422, when dust is sucked, the dust will slide down along the oil groove 423, and objects outside the dust will be pulled down together.

Wherein, receive heavily detain 422 including can press release plate 4221, wait to move groove 4222, return plate 4223, can press release plate 4221 right-hand member and install return plate 4223, it locates can press release plate 4221 top to wait to move groove 4222, it is the leaf appearance structure to wait to move groove 4222, wait to move the object that groove 4222 dragged the weight of keeping flat, when exceeding gravity, it can press release plate 4221 will extrude its return plate 4223 for the smooth gliding down of object can be.

The oil groove 423 comprises an inclined opening 4231, a dust absorption sliding body 4232 and a sliding oil groove 4233, the inclined opening 4231 is communicated with the sliding oil groove 4233, the dust absorption sliding body 4232 is embedded in an inner groove of the sliding oil groove 4233 and movably connected, the inclined opening 4231 is inclined by 225 degrees with the horizontal plane, the inclined opening 4231 is inclined, so that little oil inside cannot flow out, and dust outside can smoothly enter.

The dust collection sliding body 4232 comprises a grease outlet 42321, a dust collection groove 42322, a connecting block 42323 and an oil storage grid 42324, the grease outlet 42321 is communicated with the oil storage grid 42324, one end, far away from the oil storage grid 42324, of the grease outlet 42321 is connected with the dust collection groove 42322, the oil storage grid 42324 is installed inside the connecting block 42323, the dust collection groove 42322 is of an arc-shaped groove structure, the oil storage grid 42324 can timely supplement the oil storage groove 42324 through the grease outlet 42321 when the inner wall of the dust collection groove 42322 does not have oil, and dust can be timely sucked when entering the dust collection groove 42324.

The specific use mode and function of the embodiment are as follows:

in the invention, when the external dust floating day is serious and the foot has drifted into the shed, the effect of light filling and lighting is influenced, the device can be arranged at the periphery of the Chinese cabbage to cover the Chinese cabbage, the embedded teeth 416 and the blocking bodies 418 are subjected to the resistance of soil when the device is placed, the blocking bodies 418 drive the pushing grains 417 to rotate inwards, so as to drive the thread driving sleeve 411 to rotate together, the rotating inserted rod 4153 is screwed out along the limiting outlet 4154, the buckling returning rod 41532 is subjected to the forward force at the beginning, so as to be contracted into the contracting groove 41531, when the Chinese cabbage grows, the outer frame is subjected to the force, the connecting rod 414 is moved to the next soft buckle 413, when the resistance is lost, the soft buckle 413 limits the position of the Chinese cabbage, when the foot is shaken or moved, the forward rod 415324 is unfolded reversely, the reverse pulling buckle 415321 is clamped in the forward rod 415324, so as to hook the interior of the soil, when the device is installed, floating dust flies, oil juice squeezed out by the oil storage grids 42324 through the inclined port 4231 is sucked into the dust absorption groove 42322, the force originally equal to the force of the pressure releasing plate 4221 is changed to be heavy, the pressure releasing plate 4221 extrudes the return plate 4223, the connecting block 42323 drives the net eave 1 to pull downwards along the oil groove 423, and therefore the blocking net 2 surrounds the Chinese cabbage, the floating dust cannot float, and the light supplement illuminating lamp 3 at the top can smoothly run.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims

1. The utility model provides a greenhouse vegetable planting prevents that floating dust is in light's lighting device, its structure includes net eaves (1), keeps off net (2), light filling light (3), floating dust absorption control foot (4), its characterized in that: the net eave (1) is arranged on the periphery of the blocking net (2), the floating dust absorption control pins (4) are uniformly distributed in a circular shape and are arranged on the outer ring of the light supplement illuminating lamp (3), and the blocking net (2) penetrates through the floating dust absorption control pins (4); the floating dust absorption control foot (4) comprises a soil stabilizing foot (41), an oil cavity net pulling groove (42), a top fixing end (43) and an illumination expanding cover (44), wherein the top end of the soil stabilizing foot (41) penetrates through the bottom end of the oil cavity net pulling groove (42), the top fixing end (43) is installed at one end, far away from the soil stabilizing foot (41), of the oil cavity net pulling groove (42), and the illumination expanding cover (44) is installed between the oil cavity net pulling grooves (42); the soil stabilizing foot (41) comprises a thread driving sleeve (411), return springs (412), soft buckles (413), a linking rod (414), unscrewing clamping wheels (415), embedding teeth (416), pushing threads (417) and a blocking body (418), the outer rings of the pushing threads (417) are meshed with the thread driving sleeve (411), the return springs (412) are installed at the top end of the blocking body (418), the three soft buckles (413) form a group, the linking rod (414) is located on the right side of the soft buckle (413), the unscrewing clamping wheels (415) are installed on the outer rings of the thread driving sleeve (411), and the two embedding teeth (416) are provided with the pushing threads (417) therebetween; the unscrewing clamping wheel (415) comprises a main control shaft (4151), side auxiliary shafts (4152), rotary inserting rods (4153) and a limiting outlet (4154), wherein the side auxiliary shafts (4152) are uniformly distributed and embedded in the outer ring of the main control shaft (4151) in a circular shape, one end, far away from the main control shaft (4151), of each rotary inserting rod (4153) is installed inside each rotary inserting rod (4153), and each rotary inserting rod (4153) is located inside the corresponding limiting outlet (4154) and movably connected with the corresponding rotary inserting rod; the rotary inserting rod (4153) comprises two retraction grooves (41531), two buckling retraction rods (41532) and a main rod (41533), the two retraction grooves (41531) are embedded into the outer ring of the main rod (41533), and the buckling retraction rods (41532) are installed inside the retraction grooves (41531) and are connected through hinges; the buckle return rod (41532) comprises a reverse pull buckle (415321), a main buckle head (415322), a stress shaft (415323) and a forward rod (415324), the left end of the reverse pull buckle (415321) is welded with the right end of the main buckle head (415322), and the main buckle head (415322) is hinged to the forward rod (415324) through the stress shaft (415323); the oil cavity net pulling groove (42) comprises a dust absorption ball (421), a heavy buckle (422) and an oil groove (423), the dust absorption ball (421) is embedded in the inner groove of the oil groove (423) and movably connected with the inner groove, and the heavy buckle (422) is positioned below the dust absorption ball (421); the weighted buckle (422) comprises a pressure releasing plate (4221), a groove to be moved (4222) and a return plate (4223), the return plate (4223) is installed at the right end of the pressure releasing plate (4221), and the groove to be moved (4222) is arranged above the pressure releasing plate (4221); the oil groove (423) comprises an inclined opening (4231), a dust absorption sliding body (4232) and a sliding oil groove (4233), the inclined opening (4231) is communicated with the sliding oil groove (4233), and the dust absorption sliding body (4232) is embedded in the inner groove of the sliding oil groove (4233) and is movably connected with the inner groove; the dust collection sliding body (4232) comprises a grease outlet (42321), a dust collection groove (42322), a connecting block (42323) and an oil storage grid (42324), the grease outlet (42321) and the oil storage grid (42324) are communicated with each other, one end, far away from the oil storage grid (42324), of the grease outlet (42321) is connected with the dust collection groove (42322), and the oil storage grid (42324) is installed inside the connecting block (42323).

2. The illumination device for preventing floating dust and blocking light in greenhouse vegetable planting as claimed in claim 1, wherein: when the external dust floating day is serious and the external dust floating day is floated into the shed, the light supplementing and lighting effect is influenced, the device can be arranged at the periphery of the Chinese cabbage to cover the Chinese cabbage, the embedded teeth (416) and the blocking bodies (418) are subjected to the resistance of soil when the device is placed, the blocking bodies (418) drive the pushing grains (417) to rotate inwards, so that the thread driving sleeve (411) is driven to rotate together, the rotary inserted rod (4153) is screwed out along the limiting outlet (4154), at the beginning, the buckling return rod (41532) is subjected to the forward force and is contracted into the contracting groove (41531), when the Chinese cabbage grows, the outer frame is subjected to the force, the connecting rod (414) is moved to the next soft body buckle (413), when the resistance is lost, the soft body buckle (413) is used for limiting the position of the Chinese cabbage, when the bottom feet are shaken or moved, the forward rod (415324) is reversely expanded, the reverse pull buckle (415321) is clamped inside the forward rod (415324) to hook the soil, so that the reverse pull buckle is difficult to drag by small force and needs to be taken out, only needs multi-point force to separate the reverse pulling buckle (415321) from the forward rod (415324), the main buckle head (415322) can be unfolded along the stress shaft (415323) and can be easily taken out, when floating dust flies after the equipment is installed, oil juice squeezed out by the oil storage grid (42324) through the inclined opening (4231) is sucked into the dust suction groove (42322), the original force which is equal to the pressure releasing plate (4221) is heavier, the pressure releasing plate (4221) can extrude the return plate (4223) to make the connecting block (42323) drive the net eave (1) to pull downwards along the oil groove (423), therefore, the blocking net (2) can surround the periphery of the Chinese cabbage, floating dust can not float, and the light supplementing illuminating lamp (3) at the top can smoothly operate.