A protective device for exposed wire tube in electrical engineering

Abstract

The present invention discloses a protective device for exposed wire tubes in electrical engineering, which belongs to the technical field of electrical equipment, and includes a plurality of protective units placed in sequence, wherein the protective units include a support base and a protective top cover, a lower protective groove is formed on the top of the support base, an upper protective groove is formed on the bottom of the protective top cover, and the upper protective groove is correspondingly buckled on the lower protective groove to form a circular channel for the wire tube to pass through; a clamping groove and a clamping strip are arranged on the top surface of the support base on both sides of the lower protective groove, and a clamping plate is fixedly connected to the sides of the two clamping strips close to each other, and a clamping spring is arranged between the sides of the two clamping strips away from each other and the corresponding clamping groove wall; the wire tube passes through the upper and lower protective grooves and can be clamped between the two groups of clamping plates; transition edge strips are arranged on both sides of the support base along the length direction thereof. The protective device of the present invention protects the wire tube in the circular channel and fixes and clamps it through two clamping plates, effectively protecting the wire tube and making it easy to clamp or remove.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment protection, and in particular relates to a protective device for exposed wire tubes in electrical engineering. Background Art

[0002] In certain occasions or time periods, including at construction sites, emergency situations, outdoor activities, and temporary facility deployment, electrical equipment is used to meet temporary power needs. When the electrical equipment is in use, wire pipes are laid for the safety of cables. Wire pipes are usually used to cross obstacles or bridges, and are generally exposed on the outside. Pedestrians will step on the wire pipes when passing through them, which may cause electric shock. When there is a certain gap between the wire pipes and the ground, there is also a risk of tripping for pedestrians. The wire pipes will be pulled when pedestrians trip, causing pulling damage to the wire pipes. In addition, for some wire pipes that cross walkways or roads, the wheels of moving vehicles will crush the wire pipes when passing through them. When the wire pipes are stepped on or crushed for a long time, they will cause cracking and damage, which may cause the wire core inside the wire pipes to be exposed, increasing the risk of circuit breaking or electric shock. Summary of the invention

[0003] Technical problem solved by the present invention: In view of the problem that in the prior art, exposed wire tubes are used to protect cables that need to cross roads or bridges. The wire tubes may be cracked and damaged when they are stepped on or crushed for a long time, and the wire core inside the wire tube may be exposed. The present invention provides a protective device for exposed wire tubes in electrical engineering. The protective device protects the wire tube in a circular channel, and the wire tube is not in direct contact with the upper and lower protective grooves. The wire tube is horizontally clamped by two clamping plates, and the pressure direction of the protective top cover is vertical. Therefore, the protective top cover transfers the pressure to the ground through the supporting base and does not directly act on the wire tube, thereby effectively protecting the wire tube.

[0004] Technical solution: The present invention discloses a protective device for exposed wire tubes in electrical engineering, the protective device comprising a plurality of sequentially placed protective units, the protective units comprising a support base and a protective top cover of a strip structure, the top of the support base is recessed inwardly along the length direction to form a lower protective groove, the bottom of the protective top cover is protruded outwardly along the length direction to form an upper protective groove, the protective top cover can be slidably buckled on the support base, and the upper protective groove is correspondingly buckled on the lower protective groove to form a circular channel for the wire tube to pass through;

[0005] The top surface of the support base is provided with clamping grooves on both sides of the lower guard groove along its length direction, and the clamping grooves are provided with clamping strips, and the sides of the two clamping strips close to each other are respectively fixedly connected with clamping plates with an arc structure, and the clamping plates are located in the upper guard groove and the lower guard groove; the sides of the two clamping strips away from each other are elastically connected to the groove walls of the corresponding clamping grooves through clamping springs;

[0006] The wire tube passes through the upper and lower protective grooves and can be clamped between two sets of clamping plates arranged opposite to each other;

[0007] Transition edge strips are arranged on both sides of the support base along the length direction thereof, and the top high point of the transition edge strip is flush with the top surface of the protective top cover after buckling.

[0008] Preferably, the protective top cover is provided with first teeth on the bottom surface of the platform on both sides of the upper protective groove, and the top surface of the clamping strip is provided with second teeth along its length direction. The protective top cover is correspondingly buckled on the supporting base and the first teeth are in contact with the second teeth and mesh with each other to achieve position locking of the clamping strip.

[0009] Preferably, the support base is symmetrically provided with slide grooves on the vertical side walls located on both sides of the lower protective groove and respectively in contact with the protective top cover, and the slide grooves run through the length direction of the support base;

[0010] A slide bar is slidably connected in the slide groove, and positioning grooves are evenly distributed along the length direction of the two opposite sides of the slide bars; a clamping block is slidably connected in the positioning groove, and a locking spring is arranged between the root of the clamping block and the bottom of the positioning groove;

[0011] A card slot adapted to the card block is arranged on the vertical side wall corresponding to the protective top cover and the support base. The card block corresponds to the card slot after the protective top cover moves downward and is inserted into the card slot under the action of the locking spring.

[0012] Preferably, the length of the slide bar is greater than the length of the slide slot, one end of the slide bar is exposed from the corresponding slide slot after the card block is correspondingly inserted into the card slot, and the other end of the slide bar is flush with the notch of the corresponding slide slot after the card block is correspondingly inserted into the card slot;

[0013] A wedge-shaped surface is provided at one end of the block that is away from the slide bar and exposed from the slide bar. After being pressed, one end of the slide bar drives the block to retract into the corresponding positioning groove under the guidance of the wedge-shaped surface. After being unlocked, the protective top cover is pushed away from the clamping bar by the elastic force of the elastic component.

[0014] Preferably, the upper end of the clamping plate extends to above the wire tube, and a gap is reserved between the clamping plate and the upper and lower protective grooves;

[0015] The center of gravity of the transition edge strip is arranged downward, and the wire tube can be pressed to move the two clamping plates away from each other during the process of lifting or pressing down to meet the requirements of the wire tube being disengaged or clamped.

[0016] Preferably, the support base is located on both sides of the lower protective groove and has hidden drive cavities, and the top plate of the drive cavity is provided with rod holes connected to the inner cavity of the drive cavity at equal intervals;

[0017] The elastic component includes a driving plate that is slidably and sealably connected to the driving cavity up and down, a plurality of driving rods that are slidably and sealably connected to the rod holes are fixedly connected to the top surface of the driving plate, the top ends of the driving rods are respectively fixedly connected to the two sides of the protective top cover, and a plurality of elastic members are evenly distributed between the bottom surface of the driving plate and the bottom of the driving cavity along the length direction thereof;

[0018] The driving plate divides the driving cavity into an upper cavity and a lower cavity. The upper cavity and the bottom surface of the transition edge strip can be connected through the first air hole. During the buckling process of the protective top cover and the support base, suction can be drawn to form a negative pressure in the first air hole, and the negative pressure of the transition edge strip is adsorbed on the ground.

[0019] Preferably, the transition edge strip is made of elastic material, and the transition edge strip bends toward the ground as it moves away from the supporting base during the process of breaking away from the ground contact, and the transition edge strip expands from a bent state to a right-angled triangle state during the process of contacting the ground.

[0020] Preferably, a pierced groove is provided inside the support base below the driving cavity, a pierced hole is provided at the bottom of the pierced groove, and a second air hole communicating with the lower cavity is provided on the top wall of the pierced groove;

[0021] The inner wall of the tying groove is slidably sealed and connected to the tying plate up and down, and the bottom of the tying plate is fixedly connected with a tying nail which is slidably sealed and connected to the tying hole. The tying nail can be driven into the ground during the buckling process of the protective top cover and the support base.

[0022] Preferably, the upper surface of the transition edge strip is provided with a third air hole that can pass through the upper cavity;

[0023] The support base is provided with transition grooves on both sides of the lower protection groove along the length direction, and the first air hole, the second air hole and the third air hole respectively pass through the aqueduct up and down;

[0024] The transition groove is slidably sealed and connected to a transition plate, and a plurality of transition holes are provided on the transition plate;

[0025] The length of the transition plate is greater than the length of the transition groove so that one end thereof protrudes from the transition groove port; pressing one end of the transition plate to slide along the transition groove can drive the corresponding transition hole to connect with the second air hole and the third air hole, and pressing the other end of the transition plate to slide along the transition groove during the reset process can drive the corresponding transition hole to connect with the first air hole.

[0026] Preferably, the upper surface of the transition edge strip is provided with a fourth air hole communicating with the lower cavity;

[0027] Pressing one end of the transition plate to move along the transition groove can drive the corresponding transition hole to connect the first air hole and the fourth air hole.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The protective device of the present invention protects the wire tube in a circular channel, and the wire tube does not directly contact the upper protective groove and the lower protective groove. The wire tube is horizontally clamped by two clamping plates, and the pressure direction of the protective top cover is vertical. Therefore, the protective top cover transfers the pressure to the ground through the supporting base and does not directly act on the wire tube, thereby effectively protecting the wire tube;

[0030] 2. The transition strip is adsorbed on the ground under the action of negative pressure, so that the support base and the wire pipe are fixed on the ground. In this way, when pedestrians and vehicles pass through the protective cover, the pipeline will not be displaced or pulled, further improving the stability of the wire pipe;

[0031] 3. The protection device switches the first air hole, the second air hole, the third air hole and the fourth air hole, so that when the support base is fixed on a smooth and hard surface by negative pressure adsorption, the nailing will not be activated, thereby avoiding nailing to damage the ground and protecting the ground, and ensuring the stable operation of the drive board; at the same time, when the support base is connected to the ground by nailing, the second air hole is not activated, thereby avoiding the second air hole from sucking in impurities and causing blockage in the channel of the transition edge strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the connection structure of the protection device of the present invention;

[0033] Figure 2 for Figure 1 Schematic diagram of the structure of the protected monomer;

[0034] Figure 3 for Figure 2 Schematic diagram of the structure of the protected monomer at position A;

[0035] Figure 4 for Figure 1 Schematic diagram of the internal structure of the middle support base;

[0036] Figure 5 for Figure 4 Schematic diagram of the structure at B of the middle support base;

[0037] Figure 6 for Figure 1 Schematic diagram of the structure of the middle protective cover;

[0038] Figure 7 for Figure 6 Schematic diagram of the structure at point C of the middle protective cover;

[0039] Figure 8 for Figure 4 Schematic diagram of the structure of the connection state between the middle clamping bar and the wire tube;

[0040] Fig. 9 for Figure 8 Schematic diagram of the structure at D in the middle;

[0041] Fig.10 for Figure 4 Schematic diagram of the middle slider structure;

[0042] Fig.11 for Figure 2 A longitudinal cross-sectional view of the middle protection unit along its width direction;

[0043] Fig.12 for Fig.11 Schematic diagram of the structure at E in the middle;

[0044] Fig.13 for Fig.11 Schematic diagram of the structure at F in the middle;

[0045] Fig.14 for Figure 2 Schematic diagram of the changes in the transition strip of the middle protective unit during the installation process.

[0046] Figure numerals: 100, protective unit; 1, support base; 11, lower protective groove; 12, clamping groove; 13, slide groove; 14, driving cavity; 141, upper cavity; 142, lower cavity; 143, rod hole; 15, first air hole; 16, piercing groove; 161, piercing hole; 162, second air hole; 17, transition groove; 2, protective top cover; 21, upper protective groove; 22, first tooth; 23, card slot ; 3. Transition edge strip; 31. Third air hole; 32. Fourth air hole; 4. Clamping strip; 41. Clamping plate; 42. Clamping spring; 43. Second tooth; 5. Sliding strip; 51. Positioning groove; 52. Block; 521. Wedge surface; 53. Locking spring; 6. Drive plate; 61. Drive rod; 62. Elastic member; 7. Tie plate; 71. Tie nail; 8. Transition plate; 81. Transition hole; 9. Wire tube. DETAILED DESCRIPTION

[0047] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the attached Figures 1 to 14 The technical solutions of the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0048] like Figures 1 to 5 , Figures 8 and 9 and Fig.14The illustrated embodiment is a protective device for exposed wire conduits in electrical engineering of the present invention, the protective device comprises a plurality of sequentially placed protective units 100, the protective units 100 comprising a support base 1 and a protective top cover 2 of a strip structure, the top of the support base 1 is recessed inwardly along the length direction to form a lower protective groove 11, the bottom of the protective top cover 2 is protruded outwardly along the length direction to form an upper protective groove 21, the protective top cover 2 can be slidably buckled on the support base 1, and the upper protective groove 21 is correspondingly buckled on the lower protective groove 11 to form a circular channel for the wire conduit 9 to pass through. The top surface of the support base 1 is located on both sides of the lower protective groove 11 and is provided with clamping grooves 12 along its length direction. A clamping strip 4 is provided in the clamping groove 12. The two clamping strips 4 are fixedly connected with clamping plates 41 with an arc structure on the sides close to each other. The clamping plates 41 are located in the upper protective groove 21 and the lower protective groove 11. The wire tube 9 passes through the upper protective groove 21 and the lower protective groove 11 and can be clamped between the two groups of oppositely arranged clamping plates 41; the two clamping strips 4 are elastically connected to the groove wall of the corresponding clamping groove 12 on the sides away from each other through a clamping spring 42. Squeezing the two oppositely arranged clamping plates 41 can squeeze the clamping spring 42 to increase the space between the two clamping plates 41, thereby satisfying the insertion or removal of the wire tube 9. Transition strips 3 are arranged on both sides of the support base 1 along its length direction, and the top high point of the transition strip 3 is flush with the top surface of the protective top cover 2 after being buckled. The transition strip 3 satisfies the requirement that when the protection unit 100 is in a working state, its cross-section is roughly an isosceles trapezoidal structure, thereby facilitating the passage of pedestrians or vehicles; the center of gravity of the transition strip 3 is arranged downward, and when the wire tube 9 is lifted or pressed down, it can squeeze the space during the expansion of the two clamping plates 41 away from each other, so that the wire tube 9 can be separated or stuck.

[0049] like Figures 3 to 6 and Figures 8 and 9 In the preferred embodiment shown, first teeth 22 are provided on the bottom surface of the platform on both sides of the upper protective groove 21 of the protective top cover 2, and second teeth 43 are provided on the top surface of the clamping strip 4 along its length direction. When the protective top cover 2 is correspondingly buckled on the supporting base 1, the first teeth 22 and the second teeth 43 contact and mesh with each other to achieve the position locking of the clamping strip 4; the upper end of the clamping plate 41 extends to above the wire tube 9, and a gap is reserved between the clamping plate 41 and the upper and lower protective grooves 21 and 11, so that the two groups of clamping plates 41 can fix and clamp the position of the wire tube 9. After fixed clamping, the wire tube is fixed by the clamping plate and does not directly contact the upper and lower protective grooves, that is, the wire tube is buffered by the clamping plate, thereby improving the protection capability and use safety of the protective unit for the wire tube.

[0050] like Figures 5 to 7 and Figures 10 to 13The support base 1 is symmetrically provided with slide grooves 13 on the vertical side walls on both sides of the lower protection groove 11 that are in contact with the protective top cover 2. The slide grooves 13 run through the length direction of the support base 1. The slide bars 5 are slidably connected in the slide grooves 13. The two opposite sides of the slide bars 5 are evenly distributed with positioning grooves 51 along their length direction. The positioning grooves 51 are slidably connected with the card blocks 52. The base of the card blocks 52 and the bottom of the positioning grooves 51 are provided with locking springs 53. The card blocks 52 can be compressed by squeezing the locking springs 53 so that the card blocks 52 are retracted into the positioning grooves 51. The card blocks 52 can be automatically popped out under the action of the locking springs 53 when they are released. The protective top cover 2 and the vertical side walls corresponding to the support base 1 are provided with card grooves 23 adapted to the card blocks 52. After the protective top cover 2 moves down, the card blocks 52 correspond to the card grooves 23 and are inserted into the card grooves 23 under the action of the locking springs 53. The length of the slide bar 5 is greater than that of the slide groove 13. One end of the slide bar 5 is exposed to the corresponding slide groove 13 after the block 52 is correspondingly inserted into the slot 23, and the other end of the slide bar 5 is flush with the notch of the corresponding slide groove 13 after the block 52 is correspondingly inserted into the slot 23; the block 52 is away from the slide bar 5 and the end of the slide bar exposed is provided with a wedge-shaped surface 521. After being pressed, one end of the slide bar 5 drives the block 52 to retract into the corresponding positioning groove 51 under the guidance of the wedge-shaped surface 521. After being unlocked, the protective top cover 2 is pushed away from the clamping bar 4 by the elastic force of the elastic component; when the protective top cover 2 is detached and the protective top cover 2 is buckled with the support base 1 again, the slide bar 5 can be pressed to reset, and the block 52 can be ejected under the action of the locking spring 53 and can be correspondingly inserted into the slot 23 of the protective top cover 2, thereby locking the protective top cover 2 on the support base 1.

[0051] like Figure 6 and Figures 11 to 13In the preferred embodiment shown, the support base 1 is located on both sides of the lower protective groove 11 and has hidden driving cavities 14, and rod holes 143 connected to the inner cavity of the driving cavity 14 are evenly spaced on the top plate of the driving cavity 14; the elastic component includes a driving plate 6 that is sealed and connected to the driving cavity 14 in an up and down sliding manner, and a plurality of driving rods 61 that are fixedly connected to the top surface of the driving plate 6 and are slidably sealed and connected to the rod holes 143, and the top ends of the driving rods 61 are fixedly connected to the two sides of the protective top cover 2, and a plurality of elastic members 62 are evenly distributed between the bottom surface of the driving plate 6 and the bottom of the driving cavity 14 along the length direction thereof. During the buckling process of the protective top cover 2, the driving plate 6 can be pushed by the driving rod 61 to squeeze the elastic member 62 and move downward along the driving cavity 14; when the protective top cover 2 is disengaged from the support base 1, under the action of the elastic member 62, the driving plate 6 moves upward along the driving cavity 14 and pushes the protective top cover 2 to disengage from the support base 1 through the driving rod 61. The driving plate 6 divides the driving cavity 14 into an upper cavity 141 and a lower cavity 142. The upper cavity 141 can be connected to the bottom surface of the transition edge strip 3 through the first air hole 15. During the buckling process of the protective top cover 2 and the supporting base 1, the driving plate 6 moves downward along the driving cavity 14, causing the space of the upper cavity 141 to expand and thereby generate a suction force, which can suction to form a negative pressure in the first air hole 15. When laying on a smooth and hard ground, the transition edge strip 3 is negatively adsorbed on the ground, thereby allowing the protective unit 100 to form a stable contact with the ground.

[0052] like Fig.14 In the preferred embodiment shown, the transition strip 3 is made of elastic material. When the transition strip 3 is separated from the ground, it bends toward the ground as it moves away from the supporting base 1. When the transition strip 3 is in contact with the ground, it expands from a bent state to a right-angled triangle state.

[0053] like Figures 12-13 In the preferred embodiment shown, a piercing groove 16 is provided inside the support base 1 below the driving cavity 14, a piercing hole 161 is provided at the bottom of the piercing groove 16, and a second air hole 162 connected to the lower cavity 142 is provided on the top wall of the piercing groove 16; the inner wall of the piercing groove 16 is slidably sealed and connected to the piercing plate 7 up and down, and the bottom of the piercing plate 7 is fixedly connected to a piercing nail 71 slidably and sealedly connected to the piercing hole 161. During the process of the protective top cover 2 being fastened to the support base 1, the driving plate 6 moves downward along the driving cavity 14, and the lower cavity 142 can be squeezed to press the air inside it into the piercing groove 16 through the second air hole 162, thereby pushing the piercing plate 7 to drive the piercing nail 71 downward to penetrate into the ground to achieve a fixed connection between the protective unit 100 and the non-hardened ground.

[0054] like Figures 11 to 13In the preferred embodiment shown, the upper surface of the transition edge strip 3 is provided with a third air hole 31 that can pass through the upper cavity 141; the support base 1 is provided with transition grooves 17 on both sides of the lower protective groove 11 along the length direction, and the first air hole 15, the second air hole 162 and the third air hole 31 pass through the aqueduct 17 respectively; the transition plate 8 is connected in a sliding and sealing manner in the transition groove 17, and a plurality of transition holes 81 are opened on the transition plate 8. The length of the transition plate 8 is greater than the length of the transition groove 17 so that one end thereof protrudes from the end of the transition groove 17. The length of the transition plate 8 can be selected to be consistent with the length of the slide bar 5, and the protruding ends of the transition plate 8 and the slide bar 5 can be set at the same end of the support base 1 for corresponding adjustment. Pressing one end of the transition plate 8 to slide along the transition groove 17 can drive the corresponding transition hole 81 to connect with the second air hole 162 and the third air hole 31; pressing the other end of the transition plate 8 to slide along the transition groove 17 during the reset process can drive the corresponding transition hole 81 to connect with the first air hole 15.

[0055] like Figures 12-13 In the preferred embodiment shown, the upper surface of the transition edge strip 3 is provided with a fourth air hole 32 connected to the lower cavity 142. When one end of the transition plate 8 is pressed and moved along the transition groove 17, the corresponding transition hole can be driven to connect the first air hole 15 and the fourth air hole 32.

[0056] like Figure 4 In the preferred embodiment shown, the length of the transition edge strip 3 is greater than the length of the support base 1 and the protective top cover 2, one end of the transition edge strip 3 protrudes from the end of the support base 1 in the length direction, and the other end is flush with the support base 1 in the length direction, and the position of the end of the transition edge strip 3 protruding from the support base 1 is on the same side as the end of the slide bar 5 and the transition plate 8 exposed from the support base 1, so that a cavity for adjustment of the slide bar 5 and the transition plate 8 is formed between the protruding ends of the two transition edge strips 3.

[0057] Working principle or installation method of the present invention:

[0058] When the electrical equipment is in use, the wire tube 9 is laid for the cable. Before laying the wire tube 9, the wire tube 9 is passed through the circular channel of the protective device in advance. According to the length of the walkway or road where the wire tube crosses, a suitable number of protective monomers 100 are selected, and multiple protective monomers 100 are sequentially connected into a group. The wire tube protection device can meet the laying of smooth and hard ground, such as wear-resistant cement floor paint, self-leveling floor and tile floor in the factory; it can also meet the ground with easy gaps, such as mud, plastic floor, etc., and the above two usage scenarios are explained respectively.

[0059] (1) Lay the wire pipe and multiple protective units in conjunction with the wire pipe on a smooth and hard ground:

[0060] The end of the slide bar 5 of the protective unit 100 and the end of the transition plate 8 are both protruding from the support base 1 close to the transition edge strip 3. Before laying the wire tube 9, one end of the two slide bars 5 will be pressed, so that one end of the slide bar 5 is pressed and slides along the corresponding slide groove 13, and the slide bar 5 will drive the wedge surface 521 on the corresponding block 52 to contact the notch of the slot 23, so that the wedge surface 521 of the block will be pressed and the block 52 will be retracted into the corresponding positioning groove 51, so that the block 52 is moved out of the corresponding slot 23 as the slide bar 5 moves, and the other end of the slide bar 5 will be moved out of the other end of the slot 13 as one end of the slide bar 5 is pressed. The end of the protective cover 2 is extended out, and the card block 52 is moved out of the corresponding card slot 23, so that the corresponding protective cover 2 is unlocked, and the elastic member 62 drives the driving plate 6 to move upward in the driving cavity 14, so that the space in the upper cavity 141 becomes smaller, and the driving plate 6 drives the driving rod 61 and the protective cover 2 and the supporting base 1 to move, so that the first teeth 22 on the protective cover 2 are disengaged from the second teeth 43, so that the clamping bar 4 is unlocked; in addition, the staff will press one end of the transition plate 8, and the pressure on one end of the transition plate 8 will drive the corresponding transition plate 8 to slide in the transition groove 17, and the transition plate 8 will drive the corresponding transition hole 81 to connect the first air hole 15 and Fourth air hole 32; then lift one end of the wire tube 9, control the protective top cover 2 and the support base 1 to move along the wire tube 9 under the action of gravity, the support base 1 is connected to the transition edge strips 3 on both sides, the transition edge strips 3 make the overall center of gravity of the support base 1, the protective top cover 2 and the transition edge strips 3 lower, so that the protective top cover 2 is located above the support base 1, the gravity of the support base 1 is greater than the elastic force of the clamping spring 42, so that the wire tube 9 can squeeze the two clamping plates 41 to the upper end, because the two clamping plates 41 are arc-shaped structures, the two clamping plates 41 will move away from each other under the squeezing of the wire tube, and the process of the clamping plates 41 moving away from each other will drive the two The clamping strips 4 are away from each other, and the clamping plates 41 are away from each other, so that the gap between the clamping plates 41 and the outer wall of the wire pipe becomes larger, so that the wire pipe 9 can better pass through the circular pipe. After moving one of the support bases 1 to the corresponding position of the wire pipe 9, the staff will move the remaining support bases 1 end to end along the wire pipe closer to each other according to the width of the walkway or road crossed by the wire pipe 9. One end of the transition edge strip 3 extends out of the support base 1 to block the approach of adjacent support bases 1, ensuring that there is adjustment space for the slide bar 5 and the transition plate 8 when multiple support bases 1 are close to each other, thereby completing the preparation work for the support base 1 and the protective top cover 2.

[0061] The staff will place multiple support bases 1 with transition strips 3 on both sides on the ground. Since the transition strips 3 are elastic and bend towards the ground away from the support base 1 before being pressed against the ground, in this way, when the transition strips 3 are placed on the ground along with the support base 1, the edge of the transition strips 3 away from the support base 1 will first contact the ground. Then the staff will step on the protective top cover 2 with their feet. The pressure on the protective top cover 2 will transfer the force to the support base 1 through the elastic member 62, so that the support base 1 is pressed close to the ground. During the downward movement of the support base 1, the edge of the transition strip 3 away from the support base 1 will be driven to scrape on the ground, so that the edge of the transition strip 3 away from the support base 1 moves in the direction away from the support base 1 under the scraping. The transition strip 3 changes from a curved shape to a right-angled triangle shape under the extrusion of the support base 1. The opening of the first air hole 15 falls on the ground position after the transition strip 3 is scraped. When the support base 1 is supported on the ground by the transition strip 3, the clamping spring 42 will push the clamping strip 4 to move in the clamping groove 12. As the two clamps The strips 4 move towards each other, and the two clamping plates 41 clamp the outer wall of the wire tube 9 after approaching each other, so as to meet the requirements of clamping the outer wall of the wire tube 9 of different sizes. As the protective top cover 2 continues to be stepped on by the staff, the protective top cover 2 will overcome the elastic force of the elastic member 62 and slide vertically with the support base 1, and make the first teeth 22 on the protective top cover 2 approach the second teeth 43 on the clamping strip 4. As the protective top cover 2 moves downward, the first teeth 22 will contact the second teeth 43, so that the clamping strip 4 is locked, and the two clamping plates 41 are locked and clamped on the wire tube 9 on the outer wall, after the first tooth 22 contacts the second tooth 43, the other end of the slide bar 5 is pushed, and the slide bar 5 is pressed to drive the slide bar 5 to slide in the corresponding slide groove 13, so that one end of the slide bar 5 extends out of the slide groove 13, and the slide bar 5 will drive the positioning groove 51 to correspond to the position of the card slot 23, and the card block 52 will be clamped into the card slot 23 under the action of the locking spring 53, so as to realize the locking of the protective top cover 2 in the vertical direction, so that the protective top cover 2 and the corresponding support base 1 are locked, so that after the clamping plate 41 is locked for the second time, the wire tube is locked into the circular channel.

[0062] When the protective top cover 2 is stepped on and approaches the clamping strip 4, the protective top cover 2 will drive the driving rod 61 and the driving plate 6 to move downward synchronously. The driving plate 6 moves downward in the driving cavity 14, so that the space of the lower cavity 142 becomes smaller and the space of the upper cavity 141 becomes larger. The gas in the lower cavity 142 is pressurized and discharged along the fourth air hole 32, and the space of the upper cavity 141 becomes larger to form a negative pressure. Since the transition edge strip 3 is elastic and fits the ground, and some impurities in contact with the ground by the second air hole 162 are scraped away, more The fit effect between the lower surface of the transition strip 3 around the second air hole 162 and the ground is ensured. In this way, when negative pressure is formed in the upper cavity 141, negative pressure is also formed in the second air hole 162, so that the transition strip 3 is adsorbed on the smooth and hard ground when negative pressure is formed at the opening of the second air hole 162, thereby fixing the transition strip 3 and the support base 1 on the ground. Multiple support bases 1 and corresponding protective top covers 2 are clamped and fixed to the wire tube 9 in an end-to-end connection manner, thereby completing the protective installation process of the wire tube 9.

[0063] When pedestrians or vehicles pass through the wire tube 9, since the wire tube 9 is located in the circular channel, pedestrians or vehicles will step on or roll over the top surface of the protective top cover 2. Since the wire tube 9 is located on the inner side of the circular channel and the wire tube 9 is not in direct contact with the upper protective groove 21 and the lower protective groove 11, but is clamped horizontally by two clamping plates 41, and the protective top cover 2 is compressed in the vertical direction, the protective top cover 2 will transfer the pressure to the ground through the support base 1, and will not directly act on the wire tube 9, thereby protecting the wire tube 9. In addition, transition strips 3 are connected to both sides of the support base 1 to facilitate the transition of vehicles or pedestrians, preventing pedestrians from tripping or vehicles from getting stuck; more importantly, the transition strips 3 are adsorbed on the ground under the action of negative pressure adsorption, so that the support base 1 and the wire tube 9 are fixed on the ground, so that when pedestrians or vehicles pass through the protective top cover 2, the wire tube 9 will not be displaced or pulled, further improving the stability of the wire tube.

[0064] When the wire tube 9 needs to be put away, press one end of the slide bar 5 so that the protective top cover 2 is driven away from the clamping bar 4 by the elastic member 62 when unlocked, and the protective top cover 2 will drive the driving plate 6 to move upward in the driving cavity 14 through the driving rod 61, so that the space in the lower cavity 142 becomes larger, and the outside air will enter the lower cavity 142 along the fourth air hole 32 for replenishment, and the space in the upper cavity 141 becomes smaller, so that the negative pressure in the upper cavity 141 and the second air hole 162 is relieved, and the staff can directly lift the support base 1 and the protective top cover 2 along with the wire tube 9.

[0065] (2) Lay a wire pipe and multiple protective units in coordination with the wire pipe on the ground where the gap can be broken:

[0066] Press one end of the slide bar 5 so that the slide bar 5 drives the positioning groove 51 to be offset from the card slot 23, so that the card block 52 moves out of the card slot 23, and the protective top cover 2 is moved away from the clamping bar 4 under the action of the elastic member 62, so that the clamping plate 41 is unlocked; press the other end of the transition plate 8, and the pressure on the other end of the transition plate 8 will drive the transition plate 8 to slide in the transition groove 17, and the transition plate 8 will drive the corresponding transition hole 81 to connect the second air hole 162 and the third air hole 31; control the support base 1 and the protective top cover 2 to move along the length direction of the wire tube 9 during the lifting process, so that the protective top cover 2 and the support base 1 move to the corresponding positions; similarly, move the remaining support bases 1 closer to each other along the wire tube 9 as needed to complete the preparation work for the support base 1 and the protective top cover 2.

[0067] The staff puts the support base 1 on the ground and steps on the protective top cover 2 to drive the support base 1 to approach and contact the ground. The clamping spring 42 pushes the two clamping plates 41 to clamp the outer wall of the wire tube 9. The first teeth 22 on the protective top cover 2 move down and contact with the second teeth 43 on the clamping strip 4 to engage and lock, so that the two clamping plates 41 are locked. Then the other end of the slide bar 5 is pushed. The positioning groove 51 on the slide bar 5 is aligned with the card slot 23 after the slide bar 5 moves. The card block 52 is clamped into the card slot 23 under the action of the locking spring 53, so that the protective top cover 2 and the support base 1 are locked, so that the wire tube 9 is locked into the circular channel. When the top cover 2 is stepped on, the driving plate 6 will be driven to move in the driving cavity 14, so that the space of the upper cavity 141 becomes larger and the space of the lower cavity 142 becomes smaller. The space of the upper cavity 141 becomes larger to form a negative pressure, and the external gas will enter the upper cavity 141 along the third air hole 31 to replenish the gas. The gas in the lower cavity 142 will enter the piercing groove 16 along the second air hole 162, pushing the piercing plate 7 to move downward in the piercing groove 16 to ensure the movement of the piercing plate 7. The piercing plate 7 will drive the piercing nail 71 to extend out of the piercing hole 161 and penetrate into the ground, thereby achieving the fixation of the support base 1 to the ground and completing the protection process of the wire tube 9.

[0068] When pedestrians or vehicles pass through the protective top cover 2, since the support base 1 is firmly connected to the ground, the support base 1 will not be displaced due to the stepping of pedestrians or the passing of vehicles, so that the wire tube 9 is protected in the circular channel and the wire tube is prevented from being pulled, making the process of electrical engineering automation smoother. When it is necessary to retract the wire tube, one end of the slide bar 5 can be pressed to make the unlocked protective top cover 2 move away from the clamping bar 4 under the action of the elastic member 62, and the protective top cover 2 drives the driving plate 6 to move up in the driving cavity 14, so that the gas in the upper cavity 141 is discharged along the third air hole 31, and the space of the lower cavity 142 becomes smaller to form negative pressure, and the gas in the upper space of the tying plate 7 in the tying groove 16 will enter the lower cavity 142 along the second air hole 162 under negative pressure, and the tying nail 71 is pulled out from the ground and retracted into the tying hole 161 as the tying plate 7 moves up in the tying groove 16, and the support base 1 and the protective top cover 2 can be lifted away along with the wire tube 9.

[0069] The protective device of the present invention can switch the connection and fixing mode of the support base 1 with the ground in different environments by pressing the transition plate 8, so that pedestrians or vehicles will not cause the support base 1 to move and cause the wire tube to be pulled when passing through the protective top cover 2, thereby protecting the wire tube 9 and ensuring the normal operation of the electrical engineering automation. The transition plate 8 achieves the switching of the first air hole 15, the second air hole 162, the third air hole 31 and the fourth air hole 32 through displacement, so that the support base 1 is fixed on a smooth and hard plane by negative pressure adsorption, and the nail 71 is not activated, so as to avoid the nail 71 from damaging the ground, protect the ground, and maintain the stable operation of the drive plate 6. At the same time, when the support base 1 is connected to the ground by the nail 71, the second air hole 162 is not activated, so as to avoid the second air hole 162 from sucking in impurities and causing the channel to be blocked. Therefore, the two usage scenarios are independent of each other and interact with each other, and can be switched with each other. In addition, during the deformation process, the transition edge strip 3 can cause the first air hole 15, the second air hole 162, the third air hole 31 and the fourth air hole 32 to deform inside the transition edge strip 3, thereby avoiding blockage caused by the agglomeration of impurities and ensuring that the channel is smooth; a plurality of forked openings are provided at one end of the first air hole 15 and the piercing hole 161 away from the driving cavity 14 to ensure negative pressure adsorption at multiple points and the insertion of multiple piercing nails 71.

[0070] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A protective device for exposed wire tubes in electrical engineering, characterized in that: The protection device comprises a plurality of sequentially arranged protection units (100), wherein the protection units (100) comprise a support base (1) of a strip-shaped structure and a protection top cover (2), wherein the top of the support base (1) is recessed inwardly along the length direction to form a lower protection groove (11), and the bottom of the protection top cover (2) is protruded outwardly along the length direction to form an upper protection groove (21), and the protection top cover (2) can be slidably buckled on the support base (1), and the upper protection groove (21) is correspondingly buckled on the lower protection groove (11) to form a circular channel for the wire tube (9) to pass through; The top surface of the support base (1) is provided with clamping grooves (12) on both sides of the lower protective groove (11) along the length direction thereof, and a clamping strip (4) is provided in the clamping groove (12), and the sides of the two clamping strips (4) close to each other are respectively fixedly connected with clamping plates (41) with an arc structure, and the clamping plates (41) are located in the upper protective groove (21) and the lower protective groove (11); the sides of the two clamping strips (4) far away from each other are elastically connected to the groove wall of the corresponding clamping groove (12) via a clamping spring (42); The wire tube (9) passes through the upper protective groove (21) and the lower protective groove (11) and can be clamped between two sets of clamping plates (41) arranged opposite to each other; Transition edge strips (3) are arranged on both sides of the support base (1) along its length direction, and the top high point of the transition edge strip (3) is flush with the top surface of the protective top cover (2) after being buckled; Wherein, the support base (1) is symmetrically provided with slide grooves (13) on vertical side walls located on both sides of the lower protective groove (11) and respectively in contact with the protective top cover (2), and the slide grooves (13) run through the length direction of the support base (1); A slide bar (5) is slidably connected in the slide groove (13), and positioning grooves (51) are evenly distributed along the length direction of the two opposing sides of the slide bars (5); a clamping block (52) is slidably connected in the positioning groove (51), and a locking spring (53) is provided between the root of the clamping block (52) and the bottom of the positioning groove (51); A card slot (23) adapted to the card block (52) is provided on the vertical side walls of the protective top cover (2) and the supporting base (1); the card block (52) corresponds to the card slot (23) after the protective top cover (2) moves downward and is inserted into the card slot (23) under the action of the locking spring (53).

2. The protection device for exposed wire tubes in electrical engineering according to claim 1, characterized in that: The protective top cover (2) is provided with first teeth (22) on the bottom surface of the platform on both sides of the upper protective groove (21), and the top surface of the clamping strip (4) is provided with second teeth (43) along its length direction. The protective top cover (2) is correspondingly buckled on the supporting base (1) and the first teeth (22) and the second teeth (43) are in contact and mesh with each other to achieve the position locking of the clamping strip (4).

3. The protection device for exposed wire tubes in electrical engineering according to claim 1, characterized in that: The length of the slide bar (5) is greater than the length of the slide groove (13); one end of the slide bar (5) is exposed from the corresponding slide groove (13) after the clamping block (52) is correspondingly inserted into the clamping groove (23); and the other end of the slide bar (5) is flush with the notch of the corresponding slide groove (13) after the clamping block (52) is correspondingly inserted into the clamping groove (23); The end of the block (52) that is away from the slide bar (5) and exposed from the slide bar is provided with a wedge-shaped surface (521); after being pressed, one end of the slide bar (5) drives the block (52) to retract into the corresponding positioning groove (51) under the guidance of the wedge-shaped surface (521); and after being unlocked, the protective top cover (2) is pushed away from the clamping bar (4) by the elastic force of the elastic component.

4. The protection device for exposed wire tubes in electrical engineering according to claim 1, characterized in that: The upper end of the clamping plate (41) extends to above the wire tube (9), and a gap is reserved between the clamping plate (41) and the upper protective groove (21) and the lower protective groove (11); The center of gravity of the transition edge strip (3) is arranged downward, and the wire tube (9) can press the two clamping plates (41) away from each other during the lifting or pressing process to satisfy the detachment or insertion of the wire tube (9).

5. The protection device for exposed wire tubes in electrical engineering according to claim 3, characterized in that: The support base (1) is located on both sides of the lower protection groove (11) and has hidden drive cavities (14), and the top plate of the drive cavity (14) is provided with rod holes (143) connected to the inner cavity of the drive cavity (14) at equal intervals; The elastic component comprises a driving plate (6) which is slidably and sealably connected up and down in the driving cavity (14); a plurality of driving rods (61) which are slidably and sealably connected in rod holes (143) are fixedly connected to the top surface of the driving plate (6); the top ends of the driving rods (61) are respectively fixedly connected to two sides of the protective top cover (2); and a plurality of elastic members (62) are evenly distributed along the length direction between the bottom surface of the driving plate (6) and the bottom of the driving cavity (14); The driving plate (6) divides the driving cavity (14) into an upper cavity (141) and a lower cavity (142); the upper cavity (141) and the bottom surface of the transition edge strip (3) can be connected via the first air hole (15); during the buckling process of the protective top cover (2) and the supporting base (1), suction can be drawn to form a negative pressure in the first air hole (15), so that the transition edge strip (3) is adsorbed on the ground by the negative pressure.

6. The protection device for exposed wire tubes in electrical engineering according to claim 5, characterized in that: The transition edge strip (3) is made of an elastic material, and when the transition edge strip (3) is out of contact with the ground, it bends toward the ground as it moves away from the side of the support base (1). When the transition edge strip (3) is in contact with the ground, it expands from a bent state to a right-angled triangle state.

7. The protection device for exposed wire tubes in electrical engineering according to claim 6, characterized in that: A piercing groove (16) is provided inside the support base (1) below the driving cavity (14); a piercing hole (161) is provided at the bottom of the piercing groove (16); and a second air hole (162) communicating with the lower cavity (142) is provided on the top wall of the piercing groove (16); The inner wall of the tying groove (16) is slidably sealed upward and downwardly connected to the tying plate (7), and the bottom of the tying plate (7) is fixedly connected to a tying nail (71) which is slidably sealed and connected to the tying hole (161). The tying nail (71) can be driven into the ground during the process of buckling the protective top cover (2) and the supporting base (1).

8. The protection device for exposed wire tubes in electrical engineering according to claim 7, characterized in that: The upper surface of the transition edge strip (3) is provided with a third air hole (31) that can be connected to the upper cavity (141); The support base (1) is provided with transition grooves (17) respectively penetrating along the length direction on both sides of the lower protection groove (11); the first air hole (15), the second air hole (162) and the third air hole (31) respectively penetrate the aqueduct (17) from top to bottom; The transition groove (17) is slidably sealed to be connected to a transition plate (8), and a plurality of transition holes (81) are formed on the transition plate (8); The length of the transition plate (8) is greater than the length of the transition groove (17) so that one end thereof protrudes from the end of the transition groove (17); pressing one end of the transition plate (8) to slide along the transition groove (17) can drive the corresponding transition hole (81) to connect with the second air hole (162) and the third air hole (31); pressing the other end of the transition plate (8) to slide along the transition groove (17) to reset can drive the corresponding transition hole (81) to connect with the first air hole (15).

9. The protection device for exposed wire tubes in electrical engineering according to claim 8, characterized in that: The upper surface of the transition edge strip (3) is provided with a fourth air hole (32) communicating with the lower cavity (142); When one end of the transition plate (8) is pressed and moves along the transition groove (17), the corresponding transition hole can be driven to connect with the first air hole (15) and the fourth air hole (32).

Images