Electrical engineering experiment table with foldable dust shielding assembly

Abstract

The invention discloses an electrical engineering experiment table with a foldable dust shielding assembly, and relates to the technical field of electrical engineering experiment tables. The top of the table body is connected with a hole plate, a dust shielding assembly is arranged on the top of the table body, and the dust shielding assembly is used for forming a containing space which can be closed and can surround the hole plate on the top of the table body. The dust shielding assembly is arranged and comprises the two first shielding curtains, the second shielding curtain and the two third shielding curtains, and all the shielding curtains can be unfolded or folded in the preset direction. When the dust shielding assembly is in the unfolded state, the first shielding curtain, the second shielding curtain, the third shielding curtain, the fourth shielding curtain on the back face of the hole plate and the top face of the table body jointly form a closed containing space, so that coating type protection is formed on experimental equipment placed on the top of the table body, and therefore the influence of manual operation on the experimental equipment is reduced; therefore, the overall safety and the service life of the experiment table are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical engineering experimental benches, and specifically to an electrical engineering experimental bench with a collapsible dust-proof component. Background Art

[0002] Existing electrical engineering experimental benches usually adopt a perforated board structure to realize the hanging of experimental equipment. When conducting different experiments, a variety of experimental equipment needs to be installed on the perforated board and the corresponding wiring operations need to be completed. After the experiment, in order to prevent the experimental equipment from being exposed to the external environment and being attached with dust and corroded by humid air, all the equipment needs to be stored in the storage cabinet at the bottom of the experimental bench. However, the existing operation method has the following technical defects: (1) There are many types of experimental equipment, and most of them have large volume and weight, resulting in students having to frequently carry a large amount of equipment during each experiment, and the operation process is time-consuming and laborious; (2) Repeated access operations are likely to cause equipment bumps. Especially for precision experimental instruments, there is a risk of accuracy decline or function damage due to mechanical collision, seriously affecting the service life of the equipment; (3) The storage of equipment requires strict space planning, and disorderly placement may cause mutual extrusion between equipment, further increasing the risk of loss. The above problems seriously affect the experimental teaching efficiency and equipment management and maintenance. Summary of the Invention

[0003] The purpose of the present invention is to provide an electrical engineering experimental bench with a collapsible dust-proof component to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An electrical engineering experimental bench with a collapsible dust-proof component, including a bench body; a perforated board is connected to the top of the bench body, and a dust-proof component is provided on the top of the bench body, and the dust-proof component is used to form a closed and enclosable accommodation space for the perforated board on the top of the bench body.

[0005] Further, the dust-proof component includes two first shielding curtains that can be wound and stored, a second shielding curtain, and two third shielding curtains. The dust-proof component also includes a fourth shielding curtain fixedly connected to the rear end of the perforated board;

[0006] The two first shielding curtains are symmetrically distributed on the left and right, the second shielding curtain is located on the top of the two first shielding curtains, and the two third shielding curtains are used to close and block the openings at the front ends of the two first shielding curtains;

[0007] The two first shielding curtains, one second shielding curtain, two third shielding curtains, and the fourth shielding curtain together with the top surface of the bench body form a closed and enclosable accommodation space for the perforated board.

[0008] Further, two groups of jack groups are provided on the bench body, and each jack group includes at least two jacks;

[0009] The dust shielding assembly further includes two first fixing blocks fixedly connected to the top end of the table body and respectively connected to both sides of the perforated plate. A first winding drum is rotatably connected in each first fixing block through a first rotating rod and a first torsion spring, and the first shielding curtain is wound around each winding drum;

[0010] Free ends of the two first shielding curtains are fixedly connected with two symmetrically arranged first pulling blocks, and a fixing mechanism is connected to each first pulling block. The fixing mechanism includes a first electric push rod connected in the first pulling block, and the output end of the first electric push rod is connected with at least two inserting rods respectively cooperating with at least two inserting holes; the first pulling block is detachably connected to the table body through the fixing mechanism;

[0011] The dust shielding assembly further includes a second fixing block fixedly connected to the top ends of the two first fixing blocks and the top end of the perforated plate. A second winding drum is rotatably connected in the second fixing block through a second rotating rod and a second torsion spring, and the second shielding curtain is wound around the second winding drum;

[0012] The free end of the second shielding curtain is fixedly connected with a second pulling block, and an iron sheet is fixedly connected to the bottom of the second pulling block. A first magnetic sheet capable of magnetically adsorbing with the iron sheet is connected to the top of the first pulling block;

[0013] A third winding drum is rotatably connected in the first pulling block through a third rotating rod and a third torsion spring, and the third shielding curtain is wound around the third winding drum. The free end of the third shielding curtain is connected with a third pulling block, and an iron plate is connected to any one of the two third pulling blocks, and a second magnetic sheet magnetically adsorbing with the iron plate is connected to the other third pulling block.

[0014] In the present invention, by pulling the two first pulling blocks forward, the two first shielding curtains can be pulled out and unfolded. Then, the first pulling blocks are fixed on the top surface of the table body through the fixing mechanism to complete the pulling and fixing of the first shielding curtains. Then, the second shielding curtain is pulled out and unfolded through the second pulling block, and then the iron sheet and the first magnetic sheet on the top surface of the first pulling block are adsorbed to complete the pulling and fixing of the second shielding curtain. Subsequently, the two third pulling blocks are pulled towards the approaching direction until the second magnetic sheets and the iron plates on the approaching sides of the two third pulling blocks are adsorbed together, so as to complete the pulling and unfolding of the third shielding curtain. Then, in cooperation with the fourth shielding curtain on the back of the perforated plate and the top surface of the table body, a relatively closed accommodation space can be conveniently formed, so as to cover and shield the experimental equipment located on the top surface of the table body. In this way, it is not necessary to place each experimental equipment into the storage cabinet at the bottom of the table body, saving the time and physical strength of the experimental personnel. At the same time, the experimental equipment is prevented from being knocked due to frequent taking and placing, ensuring the safety of the experimental equipment and effectively improving the reliability and safety of the experimental table.

[0015] Further, a pressing assembly is connected to the second fixing block, and the pressing assembly is used to press and fit the bottom surface of the second shielding curtain and the tops of the two first shielding curtains together; in this way, the gap between the bottom surface of the second shielding curtain and the tops of the two first shielding curtains can be reduced, improving the dust shielding effect of the dust shielding assembly, effectively protecting the safety of the experimental equipment on the top surface of the table body, and effectively improving the safety of the experimental table.

[0016] A storage mechanism is also connected to the second fixing block, and the storage mechanism can store the pressing assembly in the second fixing block. By rotating out the two pressing plates through the storage mechanism and pressing them on the top surface of the second shielding curtain, the gap between the bottom surface of the second shielding curtain and the tops of the two first shielding curtains can be effectively reduced.

[0017] Further, the pressing assembly includes two symmetrically arranged pressing groups, and the storage mechanism includes two storage groups respectively cooperating with the two pressing groups;

[0018] The pressing group includes a second rotating block. The front end of the second rotating block is hinged with a hinged rod through a sixth rotating rod and a sixth torsion spring. The end of the hinged rod away from the second rotating block is hinged with a pressing plate that can press on the top surface of the second shielding curtain through a seventh rotating rod and a seventh torsion spring;

[0019] A storage cavity is opened at the front end of the second fixing block;

[0020] The storage group includes a fourth rotating rod rotatably connected between the top wall and the bottom wall of the storage cavity. A first rotating block is connected between the two fourth rotating rods. The storage group further includes a first motor for driving the fourth rotating rod to rotate. The front end of the first rotating block is rotatably connected with the second rotating block through a fifth rotating rod and a fifth torsion spring;

[0021] The storage group further includes a driving block fixedly connected to the bottom wall of the storage cavity. The top surface of the driving block is provided with a first inclined surface that is lower in the front and higher in the rear. The bottom surface of the hinged rod can be in contact and fit with the first inclined surface.

[0022] In the present invention, the first motor and the fourth rotating rod drive the first rotating block to rotate. The first rotating block drives the two pressing plates to rotate towards each other through the second rotating block and the hinged rod. And as the hinged rod approaches the storage cavity, the bottom surface of the hinged rod will contact the first inclined surface of the top surface of the driving block. And as the hinged rod continues to enter the storage cavity, under the limiting drive of the first inclined surface, the hinged rod will rotate upward. In this way, it can be ensured that the pressing plate can be smoothly rotated into the storage cavity, so as to ensure that the pressing plate can be smoothly and completely stored in the storage cavity, so that the pressing plate will not hinder the winding operation of the second shielding curtain. In this way, it can prevent the second shielding curtain from hindering the experimental operation, greatly improving the reliability of the experimental table.

[0023] Further, the angle between the first inclined surface on the top surface of the driving block and the horizontal plane is not greater than 30 degrees. The advantage of this setting is that it can reduce the resistance when the hinge rod swings upward, ensure that the pressing plate can be smoothly received into the receiving cavity, and improve the reliability and practicability of the experimental table.

[0024] Further, a dust removal assembly is also provided on the table body. The dust removal assembly includes two symmetrically arranged dust removal groups. Each dust removal group includes a first dust removal mechanism connected to the first fixed block and a second dust removal mechanism connected to the second fixed block;

[0025] The first dust removal mechanism is used to clean the dust attached to the outer side of the first shielding curtain, and the second dust removal mechanism is used to clean the dust attached to the top surface of the second shielding curtain.

[0026] In the present invention, the first dust removal mechanism and the second dust removal mechanism can clean the dust attached to the outer sides of the first shielding curtain and the second shielding curtain, so as to avoid the experimental equipment placed on the top surface of the table body and the top of the table body being contaminated by the dust shaken off when the first shielding curtain and the second shielding curtain are wound up, further ensuring the safety and cleanliness of the experimental equipment, and greatly improving the reliability and practicability of the experimental table.

[0027] Further, the first dust removal mechanism includes a shielding cover connected to the first fixed block. A first brush tightly abutting against the side of the adjacent first shielding curtain and a first shielding strip approaching the adjacent first shielding curtain and not contacting the side of the adjacent first shielding curtain are fixedly connected to the shielding cover;

[0028] The first dust removal mechanism further includes a swinging mechanism connected to the first fixed block. The swinging mechanism is used to drive the shielding cover to swing to avoid blocking the winding operation of the first shielding curtain.

[0029] In the present invention, during the winding process of the first shielding curtain, the first brush can brush the dust attached to the side of the first shielding curtain away from each other, and the first shielding strip can prevent the dust from splashing.

[0030] Further, the second dust removal mechanism includes a second brush and a second shielding strip fixedly connected to the bottom of the pressing plate. The bottom end of the second brush can tightly abut against the top surface of the second shielding curtain, and the bottom end of the second shielding strip approaches the top surface of the second shielding curtain and does not contact the top surface of the second shielding curtain.

[0031] In the present invention, the second brush can brush off the dust attached to the top surface of the second shielding curtain, and the second shielding strip is used in cooperation to prevent the brushed-off dust from spreading everywhere, so that the dust suction cover can more thoroughly adsorb the dust on the top surface of the second shielding curtain, improving the cleaning effect of the dust on the top surface of the second shielding curtain.

[0032] Furthermore, the bottom wall of the shielding cover is of a through-type design;

[0033] The first dust removal mechanism also includes a dust collecting groove opened on the top of the platform body, a baffle is buckled on the top of the dust collecting groove, a gap is left between the rear side of the baffle and the rear inner wall of the dust collecting groove, the bottom end of the inner cavity of the shielding cover is connected to the aforementioned gap, and a dust exhaust port connected to the dust collecting groove is opened on the side of the platform body, and a sealing door is hinged at the dust exhaust port.

[0034] When the first brush is brushing the first shielding curtain, in conjunction with the shielding cover and the first shielding strip, the brushed dust can be introduced into the dust collecting trough, so that the dust attached to the first shielding curtain can be brushed off and collected, effectively preventing the dust from contaminating the experimental equipment on the top of the platform.

[0035] Furthermore, the second dust removal mechanism includes a mounting cavity provided at the bottom of the pressing plate, and a dust hood is fixedly connected to the mounting cavity;

[0036] The second dust removal mechanism also includes a dust suction pump fixedly connected to the top wall of the installation cavity, and a dust suction pipe is connected between the input end of the dust suction pump and the top of the dust suction cover;

[0037] The output end of the dust suction pump is connected with a dust exhaust pipe, and one end of the dust exhaust pipe away from the dust suction pump penetrates the side wall of the pressure plate and is fixedly plugged on the side of the shielding cover. The end of the dust exhaust pipe away from the dust suction pump is connected to the inner cavity of the shielding cover.

[0038] In the present invention, a dust suction pump is used in conjunction with a dust suction pipe, a dust suction hood and a dust exhaust pipe, and then in conjunction with a storage mechanism to drive the pressure plate to move along the top surface of the second shielding curtain. In this way, the dust attached to the top surface of the second shielding curtain can be sucked away and introduced into the dust collecting groove through the inner cavity of the shielding hood, so that the dust attached to the top surface of the second shielding curtain can be brushed off and collected, effectively preventing dust from contaminating the experimental equipment on the top of the platform.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The present invention provides a dust-proof component, which includes two first shielding curtains, one second shielding curtain and two third shielding curtains, and each shielding curtain can be deployed or retracted along a predetermined direction. When the dust-proof component is in the deployed state, the first shielding curtain, the second shielding curtain and the third shielding curtain, together with the fourth shielding curtain on the back of the perforated plate and the top surface of the table body, form a closed accommodation space to provide a wrapped protection for the experimental equipment placed on the top of the table body. The technical solution has the following beneficial effects: Dust-proof protection: By constructing a closed accommodation space, it effectively blocks external dust from adhering to the surface of the experimental equipment, reducing the risk of performance degradation of the equipment caused by dust accumulation; Reducing equipment handling: The experimental equipment can be directly stored on the top of the table body without having to be repeatedly retrieved from the storage cabinet at the bottom of the table body before and after each experiment, avoiding equipment bumps and wear caused by frequent handling, especially suitable for long-term protection of precision instruments; Improving operation convenience: Significantly reducing the operation intensity of experimental personnel, saving the time for equipment retrieval and placement, and improving experimental efficiency; Enhancing reliability: By optimizing the equipment storage method, reducing the impact of human operation on the experimental equipment, thereby improving the overall safety and service life of the experimental table. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of the present invention;

[0042] Figure 2 is a first partial structural diagram of the present invention;

[0043] Figure 3 is a second partial structural diagram of the present invention;

[0044] Figure 4 is a third partial structural diagram of the present invention;

[0045] Figure 5 is a first partial structural diagram of the dust suction component in the present invention;

[0046] Figure 6 is a second partial structural diagram of the dust suction component in the present invention;

[0047] Figure 7 is a third partial structural diagram of the dust suction component in the present invention;

[0048] Figure 8 is a side view cross-sectional view of the pressing plate in the present invention;

[0049] Figure 9 In the present invention Figure 1 is an enlarged schematic diagram of part A;

[0050] Figure 10 is a schematic diagram of the dust-proof operation of the present invention.

[0051] In the figure: 1. Table body; 11. Perforated board; 12. Bottom plate; 13. Storage cabinet; 2. Dust-proof component; 21. First fixing block; 22. First shielding curtain; 23. First pulling block; 231. Fixing mechanism; 2311. Insertion hole; 24. Second fixing block; 25. Second shielding curtain; 26. Second pulling block; 27. Third shielding curtain; 28. Third pulling block; 3. Pressing component; 31. Storage mechanism; 311. Storage cavity; 312. First rotating block; 313. First motor; 314. Second rotating block; 315. Hinge rod; 316. Driving block; 32. Pressing plate; 33. Second brush; 34. Second shielding strip; 4. Dust-removing component; 41. First dust-removing mechanism; 411. Shielding cover; 412. First brush; 413. First shielding strip; 414. Dust collection groove; 415. Sealing door; 42. Second dust-removing mechanism; 421. Suction hood; 422. Suction pump; 423. Suction pipe; 424. Dust discharge pipe; 5. Swing mechanism; 51. Rotating seat; 52. Swing plate; 53. Second motor. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] Please refer to Figures 1-10 , in the illustrated electrical engineering test bench with a collapsible dust-proof component, the table body 1; a perforated board 11 is connected to the top of the table body 1, a dust-proof component 2 is provided on the top of the table body 1, and the dust-proof component 2 is used to form a closed and enclosable accommodation space around the perforated board 11 on the top of the table body 1.

[0054] Preferably, the dust-proof component 2 includes two first shielding curtains 22 that can be wound and stored, a second shielding curtain 25, and two third shielding curtains 27. The dust-proof component 2 further includes a fourth shielding curtain fixedly connected to the rear end of the perforated board 11;

[0055] The two first shielding curtains 22 are symmetrically distributed left and right. The second shielding curtain 25 is located at the top of the two first shielding curtains 22. The two third shielding curtains 27 are used to close and shield the openings at the front ends of the two first shielding curtains 22;

[0056] The two first shielding curtains 22, a second shielding curtain 25, two third shielding curtains 27, and the fourth shielding curtain together with the top surface of the table body 1 form a closed and enclosable accommodation space around the perforated board 11.

[0057] Refer to Figure 1 ,Figure 2 , Figure 3 , Figure 4 and Figure 10 , preferably, two sets of jack groups are provided on the table body 1, and each jack group includes at least two jacks 2311;

[0058] The dust-proof component 2 further includes two first fixing blocks 21 fixedly connected to the top end of the table body 1 and respectively connected to both sides of the perforated plate 11. A first winding drum is rotatably connected in the first fixing block 21 through a first rotating rod and a first torsion spring, and the first shielding curtain 22 is wound around each winding drum;

[0059] Free ends of the two first shielding curtains 22 are fixedly connected with two symmetrically arranged first pulling blocks 23, and a fixing mechanism 231 is connected to each first pulling block 23. The fixing mechanism 231 includes a first electric push rod connected in the first pulling block 23, and the output end of the first electric push rod is connected with at least two inserting rods respectively cooperating with at least two jacks 2311; the first pulling block 23 is detachably connected to the table body 1 through the fixing mechanism 231;

[0060] The dust-proof component 2 further includes a second fixing block 24. The second fixing block 24 is fixedly connected to the top ends of the two first fixing blocks 21 and the top end of the perforated plate 11. A second winding drum is rotatably connected in the second fixing block 24 through a second rotating rod and a second torsion spring, and the second shielding curtain 25 is wound around the second winding drum;

[0061] A free end of the second shielding curtain 25 is fixedly connected with a second pulling block 26, and an iron sheet 261 is fixedly connected to the bottom of the second pulling block 26. A first magnetic sheet capable of magnetically adsorbing the iron sheet 261 is connected to the top of the first pulling block 23;

[0062] A third winding drum is rotatably connected in the first pulling block 23 through a third rotating rod and a third torsion spring, and the third shielding curtain 27 is wound around the third winding drum. A free end of the third shielding curtain 27 is connected with a third pulling block 28, and an iron plate is connected to any one of the two third pulling blocks 28, and a second magnetic sheet magnetically adsorbing the iron plate is connected to the other third pulling block 28.

[0063] Among them, the winding drum structure is a mature prior art and has no impact on the novelty of this patent, so it is not necessary to elaborate. Each jack group can be provided with two jacks 2311, and the output end of the first electric push rod is connected with two inserting rods respectively cooperating with the two jacks 2311. Through the cooperation of the inserting rods and the jacks 2311, the fixing and unlocking of the first pulling block 23 can be realized.

[0064] In this embodiment, by pulling the two first pulling blocks 23 forward, the two first shielding curtains 22 can be pulled out and unfolded. Then, by using the fixing mechanism 231 to fix the first pulling blocks 23 on the top surface of the table body 1, the pulling and fixing of the first shielding curtain 22 can be completed. Next, the second shielding curtain 25 is pulled out and unfolded by the second pulling block 26, and then the iron sheet 261 and the first magnetic sheet on the top surface of the first pulling block 23 are adsorbed to complete the pulling and fixing of the second shielding curtain 25. Subsequently, the two third pulling blocks 28 are pulled towards each other until the second magnetic sheets on the adjacent sides of the two third pulling blocks 28 are adsorbed to the iron plate, and the pulling and unfolding of the third shielding curtain 27 can be completed. Together with the fourth shielding curtain on the back of the perforated plate 11 and the top surface of the table body 1, a relatively enclosed accommodation space can be conveniently formed, thereby covering and shielding the experimental equipment on the top surface of the table body 1. In this way, it is not necessary to place each experimental equipment in the storage cabinet 13 at the bottom of the table body 1, saving the time and physical strength of the experimental personnel. At the same time, it avoids the experimental equipment from being knocked due to frequent taking and placing, ensures the safety of the experimental equipment, and effectively improves the reliability and safety of the experimental table.

[0065] Refer to Figure 1 , Figure 5 , Figure 6 and Figure 7 , preferably, a pressing component 3 is connected to the second fixing block 24, and the pressing component 3 is used to press and fit the bottom surface of the second shielding curtain 25 and the tops of the two first shielding curtains 22 together; specifically, the gap between the bottom surface of the second shielding curtain 25 and the tops of the two first shielding curtains 22 can be reduced, improving the dust shielding effect of the dust shielding component 2, effectively protecting the safety of the experimental equipment on the top surface of the table body 1, and effectively improving the safety of the experimental table.

[0066] A storage mechanism 31 is also connected to the second fixing block 24, and the storage mechanism 31 can store the pressing component 3 in the second fixing block 24. By rotating out the two pressing plates 32 through the storage mechanism 31 and pressing them on the top surface of the second shielding curtain 25, the gap between the bottom surface of the second shielding curtain 25 and the tops of the two first shielding curtains 22 can be effectively reduced.

[0067] Refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 9 , preferably, the pressing component 3 includes two symmetrically arranged pressing groups, and the storage mechanism 31 includes two storage groups respectively cooperating with the two pressing groups;

[0068] The pressing group includes a second rotating block 314. The front end of the second rotating block 314 is hinged with a hinged rod 315 through a sixth rotating rod and a sixth torsion spring. One end of the hinged rod 315 away from the second rotating block 314 is hinged with a pressing plate 32 that can be pressed against the top surface of the second shielding curtain 25 through a seventh rotating rod and a seventh torsion spring.

[0069] Refer to Figure 5 , Figure 6 , Figure 7 and Figure 9 , a receiving cavity 311 is provided at the front end of the second fixing block 24.

[0070] The receiving group includes a fourth rotating rod rotatably connected between the inner top wall and the inner bottom wall of the receiving cavity 311. A first rotating block 312 is connected between the two fourth rotating rods. The receiving group further includes a first motor 313 for driving the fourth rotating rod to rotate. The front end of the first rotating block 312 is rotatably connected with the second rotating block 314 through a fifth rotating rod and a fifth torsion spring.

[0071] The receiving group further includes a driving block 316 fixedly connected to the inner bottom wall of the receiving cavity 311. The top surface of the driving block 316 is provided with a first inclined surface that is lower in the front and higher in the rear. The bottom surface of the hinged rod 315 can be in contact and fit with the first inclined surface.

[0072] The first motor 313 and the fourth rotating rod drive the first rotating block 312 to rotate. The first rotating block 312 drives the two pressing plates 32 to rotate towards each other through the second rotating block 314 and the hinged rod 315. And as the hinged rod 315 approaches the receiving cavity 311, the bottom surface of the hinged rod 315 will contact the first inclined surface on the top surface of the driving block 316. And as the hinged rod 315 continues to enter the receiving cavity 311, under the limiting drive of the first inclined surface, the hinged rod 315 will rotate upward. In this way, it can be ensured that the pressing plate 32 can be smoothly rotated into the receiving cavity 311, so as to ensure that the pressing plate 32 can be smoothly and completely received into the receiving cavity 311, so that the pressing plate 32 will not hinder the winding operation of the second shielding curtain 25. In this way, it can prevent the second shielding curtain 25 from hindering the experimental operation, and greatly improves the reliability of the experimental table.

[0073] Refer to Figure 9 , the included angle between the first inclined surface on the top surface of the driving block 316 and the horizontal plane is not greater than thirty degrees.

[0074] Specifically, it can reduce the resistance of the hinged rod 315 to swing upward, ensure that the pressing plate 32 can be smoothly received into the receiving cavity 311, and improve the reliability and practicability of the experimental table.

[0075] Refer to Figures 5-8, preferably, a dust removal assembly 4 is further provided on the table body 1. The dust removal assembly 4 includes two symmetrically arranged dust removal groups. Each dust removal group includes a first dust removal mechanism 41 connected to the first fixing block 21 and a second dust removal mechanism 42 connected to the second fixing block 24;

[0076] The first dust removal mechanism 41 is used to clean the dust attached to the outer side of the first shielding curtain 22, and the second dust removal mechanism 42 is used to clean the dust attached to the top surface of the second shielding curtain 25. In this way, the dust attached to the outer sides of the first shielding curtain 22 and the second shielding curtain 25 can be cleaned, so as to avoid the dust shaken off by the winding of the first shielding curtain 22 and the second shielding curtain 25 from contaminating the top surface of the table body 1 and the experimental equipment placed on the top of the table body 1, further ensuring the safety and cleanliness of the experimental equipment, and greatly improving the reliability and practicability of the experimental table.

[0077] Refer to Figures 5-7 , preferably, the first dust removal mechanism 41 includes a shielding cover 411 connected to the first fixing block 21. A first brush 412 that can tightly abut against the side of the adjacent first shielding curtain 22 and a first shielding strip 413 that is close to the adjacent first shielding curtain 22 and does not contact the side of the adjacent first shielding curtain 22 are fixedly connected to the shielding cover 411; during the process of winding the two first shielding curtains 22, the first brush 412 can brush the dust attached to the non-adjacent sides of the two first shielding curtains 22, and at the same time, the shielding cover 411 and the first shielding strip 413 cooperate to prevent dust from splashing.

[0078] The first dust removal mechanism 41 further includes a swinging mechanism 5 connected to the first fixing block 21. The swinging mechanism 5 is used to drive the shielding cover 411 to swing to avoid the shielding cover 411 blocking the winding operation of the first shielding curtain 22.

[0079] The swinging mechanism 5 includes a rotating seat 51 fixedly connected to the side of the first fixing block 21 away from the hole plate 11. A swing plate 52 is rotatably connected to the rotating seat 51 through a first rotating shaft. A second motor 53 is fixedly connected to the top of the rotating seat 51. The top end of the first rotating shaft penetrates the top wall of the rotating seat 51 and is fixedly connected to the output end of the second motor 53. One end of the swing plate 52 away from the first rotating shaft is fixedly connected to the side of the adjacent shielding cover 411.

[0080] Refer to Figures 5-7 , preferably, the second dust removal mechanism 42 includes a second brush 33 and a second shielding strip 34 fixedly connected to the bottom of the pressing plate 32. The bottom end of the second brush 33 can tightly abut against the top surface of the second shielding curtain 25, and the bottom end of the second shielding strip 34 is close to the top surface of the second shielding curtain 25 and does not contact the top surface of the second shielding curtain 25.

[0081] The dust attached to the top surface of the second shielding curtain 25 can be brushed off by the second brush 33, and then the shielding of the second shielding strip 34 is used to prevent the brushed-off dust from spreading everywhere, so that the dust suction cover 421 can more thoroughly adsorb the dust on the top surface of the second shielding curtain 25, improving the cleaning effect of the dust on the top surface of the second shielding curtain 25.

[0082] Preferably, the bottom wall of the shielding cover 411 is of a through design;

[0083] The first dust removal mechanism 41 further includes a dust collection groove 414 opened at the top end of the table body 1. A baffle is buckled on the top of the dust collection groove 414. There is a gap between the rear side surface of the baffle and the rear inner wall of the dust collection groove 414. The bottom end of the inner cavity of the shielding cover 411 is communicated with the aforementioned gap. A dust discharge port communicated with the dust collection groove 414 is opened on the side surface of the table body 1, and a sealing door 415 is hinged at the dust discharge port.

[0084] When the first brush 412 brushes the first shielding curtain 22, the shielding cover 411 and the first shielding strip 413 can be used in cooperation to guide the brushed-off dust into the dust collection groove 414, so that the dust attached to the first shielding curtain 22 can be brushed off and collected, effectively preventing the dust from contaminating the experimental equipment on the top of the table body 1.

[0085] Refer to Figures 5-8 , preferably, the second dust removal mechanism 42 includes an installation cavity opened at the bottom of the pressing plate 32, and a dust suction cover 421 is fixedly connected in the installation cavity;

[0086] The second dust removal mechanism 42 further includes a dust suction pump 422 fixedly connected to the top wall of the installation cavity. A dust suction pipe 423 is communicated between the input end of the dust suction pump 422 and the top of the dust suction cover 421;

[0087] The output end of the dust suction pump 422 is communicated with a dust discharge pipe 424. The end of the dust discharge pipe 424 away from the dust suction pump 422 penetrates through the side wall of the pressing plate 32 and is fixedly inserted on the side surface of the shielding cover 411. The end of the dust discharge pipe 424 away from the dust suction pump 422 is communicated with the inner cavity of the shielding cover 411.

[0088] By the cooperation of the dust suction pump 422, the dust suction pipe 423, the dust suction cover 421 and the dust discharge pipe 424, and then the receiving mechanism 31 drives the pressing plate 32 to move along the top surface of the second shielding curtain 25, so that the dust attached to the top surface of the second shielding curtain 25 can be sucked away and introduced into the dust collection groove 414 through the inner cavity of the shielding cover 411, so that the dust attached to the top surface of the second shielding curtain 25 can be brushed off and collected, effectively preventing the dust from contaminating the experimental equipment on the top of the table body 1.

[0089] Among them, the dust exhaust pipe 424 is set as a flexible pipe. When the dust exhaust pipe 424 has sufficient length, it will not affect the rotation of the pressing plate 32.

[0090] Working principle: When it is necessary to cover and shield the experimental equipment placed on the top of the table body 1 after the experiment, pulling the two first pulling blocks 23 forward can pull out and extend the two first shielding curtains 22. Then, start the first electric push rod to push the two pairs of inserting rods into the two pairs of inserting holes 2311 on the top surface of the table body 1 respectively, and the first pulling blocks 23 can be fixed on the top surface of the table body 1.

[0091] Then, pull out and extend the second shielding curtain 25 through the second pulling block 26, and then the iron sheet 261 and the first magnetic sheet on the top surface of the first pulling block 23 are adsorbed to complete the pulling and fixing of the second shielding curtain 25.

[0092] Subsequently, pull the two third pulling blocks 28 towards the approaching direction until the second magnetic sheets on the approaching sides of the two third pulling blocks 28 and the iron plates are adsorbed together, and the pulling and extension of the third shielding curtain 27 can be completed.

[0093] Subsequently, the first motor 313 and the fourth rotating rod drive the first rotating block 312 to rotate. The first rotating block 312 drives the two pressing plates 32 to rotate away from each other to the outermost side through the second rotating block 314 and the hinge rod 315. At this time, the pressing plates 32 can be pressed on the top surface of the second shielding curtain 25 and the tops of the two first shielding curtains 22, so that the gap between the bottom surface of the second shielding curtain 25 and the tops of the first shielding curtains 22 is pressed and reduced, thereby improving the dust shielding effect of the dust shielding component 2. In this way, combined with the fourth shielding curtain on the back of the perforated plate 11 and the top surface of the table body 1, a relatively closed accommodation space can be conveniently formed, so as to cover and shield the experimental equipment located on the top surface of the table body 1. In this way, it is not necessary to place each experimental equipment in the storage cabinet 13 at the bottom of the table body 1, saving the time and physical strength of the experimental personnel, and at the same time avoiding the experimental equipment from being knocked due to frequent taking and placing, ensuring the safety of the experimental equipment, and effectively improving the reliability and safety of the experimental table.

[0094] When starting to use the test bench for experiments again, start the first motor 313 and the fourth rotating rod to drive the first rotating block 312 to rotate. The first rotating block 312 drives the two pressing plates 32 to rotate towards each other through the second rotating block 314 and the hinge rod 315. And as the hinge rod 315 approaches the storage cavity 311, the bottom surface of the hinge rod 315 will contact the first inclined surface on the top surface of the driving block 316. And as the hinge rod 315 continues to enter the storage cavity 311, under the limiting drive of the first inclined surface, the hinge rod 315 will rotate upward. In this way, it can be ensured that the pressing plate 32 can be smoothly rotated into the storage cavity 311, so as to ensure that the pressing plate 32 can be smoothly and completely stored in the storage cavity 311, so that the pressing plate 32 will not hinder the winding operation of the second shielding curtain 25. In this way, it can prevent the second shielding curtain 25 from hindering the experimental operation, greatly improving the reliability of the test bench.

[0095] And while storing the pressing plate 32, the second brush 33 can brush off the dust attached to the top surface of the second shielding curtain 25, and then cooperate with the shielding of the second shielding strip 34 to prevent the brushed dust from spreading everywhere. Then start the dust suction pump 422 and cooperate with the dust suction pipe 423, the dust suction hood 421 and the dust discharge pipe 424, and then cooperate with the storage mechanism 31 to drive the pressing plate 32 to move along the top surface of the second shielding curtain 25. In this way, the dust attached to the top surface of the second shielding curtain 25 can be sucked away and introduced into the dust collection groove 414 through the inner cavity of the shielding cover 411, so that the dust attached to the top surface of the second shielding curtain 25 can be brushed off and collected, effectively avoiding the pollution of the experimental equipment on the top of the table body 1 by the dust, so that the dust suction hood 421 can more thoroughly adsorb the dust on the top surface of the second shielding curtain 25, improving the cleaning effect of the dust on the top surface of the second shielding curtain 25.

[0096] At the same time, through the swinging mechanism 5, the shielding cover 411 and the first brush 412 are driven to approach and press against the side surface of the first shielding curtain 22. In this way, when the first shielding curtain 22 is wound up, the first brush 412 can brush the dust attached to the side surfaces of the two first shielding curtains 22 away from each other. At the same time, in cooperation with the shielding cover 411 and the first shielding strip 413, the brushed dust can be introduced into the dust collection groove 414, so that the dust attached to the first shielding curtain 22 can be brushed off and collected, effectively avoiding the pollution of the experimental equipment on the top of the table body 1 by the dust.

[0097] As the first shielding curtain 22, the second shielding curtain 25 and the third shielding curtain 27 are retracted, the dust shielding assembly 2 will not hinder the normal experimental operation.

[0098] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0099] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical engineering test bench with a collapsible dust-proof component, comprising: Frustum (1); characterized in that a perforated plate (11) is connected to the top of the frustum (1), a dust shielding assembly (2) is provided on the top of the frustum (1), and the dust shielding assembly (2) is used to form a containment space on the top of the frustum (1) that can be enclosed and can surround the perforated plate (11).

2. The electrical engineering test bench with a collapsible dust-proof component according to claim 1, characterized in that: The dust shielding assembly (2) includes two first shielding curtains (22) that can be wound and stored, a second shielding curtain (25), and two third shielding curtains (27). The dust shielding assembly (2) further includes a fourth shielding curtain fixedly connected to the rear end of the perforated plate (11); The two first shielding curtains (22) are symmetrically distributed left and right. The second shielding curtain (25) is located on the top of the two first shielding curtains (22). The two third shielding curtains (27) are used to close and shield the openings at the front ends of the two first shielding curtains (22); The two first shielding curtains (22), a second shielding curtain (25), two third shielding curtains (27), and the fourth shielding curtain together with the top surface of the frustum (1) form a containment space that can be enclosed and can surround the perforated plate (11).

3. The electrical engineering test bench with a collapsible dust-proof component according to claim 2, characterized in that: Two sets of jack groups are provided on the frustum (1). Each jack group includes at least two jacks (2311); the dust shielding assembly (2) further includes two first fixing blocks (21) fixedly connected to the top end of the frustum (1) and respectively connected to both sides of the perforated plate (11). A first winding drum is rotatably connected in the first fixing block (21) through a first rotating rod and a first torsion spring, and each winding drum is wound with the first shielding curtain (22); Free ends of the two first shielding curtains (22) are fixedly connected with two symmetrically arranged first pulling blocks (23). A fixing mechanism (231) is connected to each first pulling block (23). The fixing mechanism (231) includes a first electric push rod connected in the first pulling block (23), and the output end of the first electric push rod is connected with at least two inserting rods respectively cooperating with at least two jacks (2311); The dust shielding assembly (2) further includes a second fixing block (24). The second fixing block (24) is fixedly connected to the top ends of the two first fixing blocks (21) and the top end of the perforated plate (11). A second winding drum is rotatably connected in the second fixing block (24) through a second rotating rod and a second torsion spring, and the second winding drum is wound with the second shielding curtain (25); The free end of the second shielding curtain (25) is fixedly connected with a second pulling block (26), and an iron sheet (261) is fixedly connected to the bottom of the second pulling block (26). A first magnetic sheet capable of magnetically adsorbing the iron sheet (261) is connected to the top of the first pulling block (23); A third winding drum is rotatably connected in the first pulling block (23) through a third rotating rod and a third torsion spring, and the third winding drum is wound with the third shielding curtain (27). The free end of the third shielding curtain (27) is connected with a third pulling block (28). An iron plate is connected to any one of the two third pulling blocks (28), and a second magnetic sheet magnetically adsorbing the iron plate is connected to the other third pulling block (28).

4. The electrical engineering test bench with a collapsible dust-proof component according to claim 3, characterized in that: A pressing component (3) is connected to the second fixing block (24), and the pressing component (3) is used to press and fit the bottom surface of the second shielding curtain (25) and the tops of the two first shielding curtains (22) together; A storage mechanism (31) is also connected to the second fixing block (24), and the storage mechanism (31) can store the pressing component (3) in the second fixing block (24).

5. The electrical engineering test bench with a collapsible dust-proof component according to claim 4, characterized in that: The pressing component (3) includes two symmetrically arranged pressing groups, and the storage mechanism (31) includes two storage groups respectively cooperating with the two pressing groups; The pressing group includes a second rotating block (314). The front end of the second rotating block (314) is hinged with a hinged rod (315) through a sixth rotating rod and a sixth torsion spring. One end of the hinged rod (315) away from the second rotating block (314) is hinged with a pressing plate (32) that can press on the top surface of the second shielding curtain (25) through a seventh rotating rod and a seventh torsion spring; A storage cavity (311) is formed at the front end of the second fixing block (24); The storage group includes a fourth rotating rod rotatably connected between the inner top wall and the inner bottom wall of the storage cavity (311). A first rotating block (312) is connected between the two fourth rotating rods. The storage group further includes a first motor (313) for driving the fourth rotating rod to rotate. The front end of the first rotating block (312) is rotatably connected with the second rotating block (314) through a fifth rotating rod and a fifth torsion spring; The storage group further includes a driving block (316) fixedly connected to the inner bottom wall of the storage cavity (311). The top surface of the driving block (316) is provided with a first inclined surface that is lower in the front and higher in the rear. The bottom surface of the hinged rod (315) can be in contact and fit with the first inclined surface.

6. The electrical engineering test bench with a collapsible dust shield component according to claim 3, characterized in that: A dust removal component (4) is further provided on the table body (1). The dust removal component (4) includes two symmetrically arranged dust removal groups. Each dust removal group includes a first dust removal mechanism (41) connected to the first fixing block (21) and a second dust removal mechanism (42) connected to the second fixing block (24); The first dust removal mechanism (41) is used to clean the dust attached to the outer side surface of the first shielding curtain (22), and the second dust removal mechanism (42) is used to clean the dust attached to the top surface of the second shielding curtain (25).

7. The electrical engineering test bench with a collapsible dust-proof component according to claim 6, characterized in that: The first dust removal mechanism (41) includes a shielding cover (411) connected to the first fixing block (21). A first brush (412) that can tightly abut against the side surface of the adjacent first shielding curtain (22) and a first shielding strip (413) that approaches the adjacent first shielding curtain (22) and does not contact the side surface of the adjacent first shielding curtain (22) are fixedly connected to the shielding cover (411); The first dust removal mechanism (41) further includes a swinging mechanism (5) connected to the first fixing block (21). The swinging mechanism (5) is used to drive the shielding cover (411) to swing to prevent the shielding cover (411) from blocking the winding operation of the first shielding curtain (22).

8. The electrical engineering test bench with a collapsible dust shield assembly according to claim 7, characterized in that: The second dust removal mechanism (42) includes a second brush (33) and a second shielding strip (34) fixedly connected to the bottom of the pressing plate (32). The bottom end of the second brush (33) can tightly abut against the top surface of the second shielding curtain (25), and the bottom end of the second shielding strip (34) abuts near the top surface of the second shielding curtain (25) without contacting the top surface of the second shielding curtain (25).

9. The electrical engineering test bench with a collapsible dust shielding component according to claim 7, characterized in that: The bottom wall of the shielding cover (411) is of a through design; The first dust removal mechanism (41) further includes a dust collection groove (414) opened at the top end of the table body (1). A baffle is buckled on the top of the dust collection groove (414). There is a gap between the rear side surface of the baffle and the rear inner wall of the dust collection groove (414). The bottom end of the inner cavity of the shielding cover (411) is communicated with the aforesaid gap. A dust discharge port communicated with the dust collection groove (414) is opened on the side surface of the table body (1), and a sealing door (415) is hinged at the dust discharge port.

10. The electrical engineering test bench with a collapsible dust-proof component according to claim 9, characterized in that: The second dust removal mechanism (42) includes an installation cavity opened at the bottom of the pressing plate (32), and a dust suction cover (421) is fixedly connected in the installation cavity; The second dust removal mechanism (42) further includes a dust suction pump (422) fixedly connected to the top wall of the installation cavity. A dust suction pipe (423) is communicated between the input end of the dust suction pump (422) and the top of the dust suction cover (421); The output end of the dust suction pump (422) is communicated with a dust discharge pipe (424). The end of the dust discharge pipe (424) far from the dust suction pump (422) penetrates through the side wall of the pressing plate (32) and is fixedly inserted on the side surface of the shielding cover (411). The end of the dust discharge pipe (424) far from the dust suction pump (422) is communicated with the inner cavity of the shielding cover (411).

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