Electric meter box with adjustable height

Abstract

The invention relates to the technical field of electric meter boxes, in particular to a height-adjustable electric meter box. A height-adjustable electric meter box comprises a shell, a connecting mechanism and an adjusting mechanism. The connecting mechanism comprises an upper cross rod and a lower cross rod. The adjusting mechanism comprises a driving assembly and two adjusting assemblies, and each adjusting assembly comprises a swing pipe, a steel wire rope and a sliding wheel. The sliding wheel is driven by the driving assembly to rotate forwards, the shell is driven by the steel wire rope to move upwards when the sliding wheel rotates forwards, and rotation of the sliding wheel is stopped after the shell is lifted to the specified height. When the shell needs to be taken down or moved downwards, the sliding wheels rotate reversely, and therefore the shell is driven by the steel wire rope to move downwards. The height of the shell can be freely adjusted, and the adjustment is simple and convenient. The invention provides a height-adjustable electric meter box, so as to solve the problems that the height of an existing electric meter box is not easy to adjust, the flexibility is poor, dust is easy to enter the electric meter box, and the electric stability is not facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of electric meter boxes, in particular to an electric meter box with adjustable height. Background Art

[0002] The meter box is a specialized enclosure used for centrally installing energy meters (watt-hour meters), circuit breakers, leakage protectors, and other power distribution equipment. It is the core device in the power system that connects user electrical devices to the power supply network. Its core functions include: Energy metering: Recording user electricity consumption through the meter. Circuit protection: Preventing overloads or short circuits through circuit breakers, fuses, etc. Safety management: Isolating live components to prevent electric shock or fire. Centralized management: Facilitating meter reading, inspection, and maintenance by the power supply department. The box achieves air circulation through ventilation components (such as vents at the upper and lower ends of the cabinet door), preventing the accumulation of condensation water and reducing the risk of rusting metal components and leakage current.

[0003] The main drawback of existing meter boxes is that they are typically mounted mid-pole and suspended. Installation, replacement, and maintenance often require maintenance personnel to use a specialized ladder to access the meter box. This not only increases accessibility but also poses safety concerns. Existing meter boxes utilize a fixed installation method, which lacks flexibility and is difficult to adjust. This makes installation and removal difficult, delaying repairs and increasing labor costs. This results in prolonged power outages for users.

[0004] Existing meter boxes can be mounted on various surfaces (smooth, rough, flat, or pillar-like). The flatness of the wall makes them difficult and unstable to secure. Fixing the meter box to a wall or pillar also results in heat transfer from the wall to the box, making it difficult to dissipate heat within the box. This can accelerate the aging of electronic components, leading to meter errors or circuit breaker malfunctions.

[0005] For example, patent publication CN112698069B discloses a novel outdoor pole-mounted, combined low-voltage meter box. A guide mechanism on the back of the box, coupled with a built-in drive mechanism, facilitates operator adjustment of the meter box's position from the bottom. However, because the meter box is located outdoors, dust and debris accumulate in its heat dissipation holes or on its surface. This reduces overall heat dissipation efficiency, negatively impacts electrical stability, and can easily lead to short circuits, leakage, metal corrosion, and plastic deformation. Summary of the Invention

[0006] The invention provides an electric meter box with adjustable height, so as to solve the problems that the height of the existing electric meter box is difficult to adjust, the flexibility is poor, dust easily enters the electric meter box, and the electric meter box is not conducive to electrical stability.

[0007] The present invention provides a height-adjustable electric meter box employing the following technical solution: the height-adjustable electric meter box comprises a housing, a connecting mechanism, and an adjusting mechanism. The connecting mechanism comprises an upper crossbar and a lower crossbar, both of which are arranged along a first direction, the first direction being a horizontal direction, and are fixedly mounted on a wall, with the upper crossbar positioned above the lower crossbar.

[0008] The adjustment mechanism includes a drive assembly and two adjustment assemblies, which are arranged sequentially along a first direction. Each adjustment assembly includes a swing tube, a wire rope, and a sliding wheel. The upper end of each swing tube is mounted on an upper crossbar, allowing the swing tube to swing. Each swing tube has multiple ventilation holes, which are arranged sequentially along the axial direction of the swing tube. Along the first direction, multiple heat dissipation holes are respectively formed on both sides of the housing, which are arranged sequentially along a vertical direction. The ventilation holes are connected to the heat dissipation holes, and the number of ventilation holes is greater than the number of heat dissipation holes.

[0009] The sliding wheel is rotatably mounted on the upper crossbar. One end of a steel wire rope is connected to the upper side of the housing. The other end of the steel wire rope is wrapped around the sliding wheel, passed through a swing tube, and connected to the lower side of the housing. The drive assembly drives the sliding wheel to rotate. When the sliding wheel rotates in the forward direction, the steel wire rope drives the housing upward. When the sliding wheel rotates in the reverse direction, the steel wire rope allows the housing to move downward.

[0010] Furthermore, each adjustment assembly includes a connecting block, fixedly mounted with a connecting post having an arcuate slot defined therein. The arcuate slot and the connecting post are coaxially arranged. Connecting slots are defined at each end of the upper crossbar, each of which houses a retaining block. Each connecting post is rotatably mounted within a connecting slot to adjust the relative position of the connecting block and the upper crossbar. After adjustment, the connecting block and the upper crossbar are locked together using a first screw. Each retaining block is slidably mounted within an arcuate slot. The upper end of the swing tube is rotatably connected to the connecting block.

[0011] Two swing tubes are arranged on both sides of the shell along the first direction. Two first baffles are fixedly arranged on the connecting block, and the two first baffles are respectively arranged on both sides of the connecting block. The adjustment component has a first state and a second state. In the first state of the adjustment component, the two first baffles are distributed in sequence along the second direction, the second direction is horizontal, and the second direction is perpendicular to the first direction. Along the second direction, the two sides of the shell are the first side and the second side, respectively, and the second side of the shell is close to the wall. The vent is on one side of the swing tube along the second direction, and the vent is close to the first side of the shell. The swing tube can swing along the first direction, and the lower ends of the two swing tubes can move away from or closer to each other. The second state of the adjustment component is that the two first baffles are distributed in sequence along the first direction, the vent is on one side of the swing tube along the first direction, and the vent is on the side close to the shell. The swing tube no longer swings in the first direction.

[0012] Furthermore, the drive assembly includes two transmission units. The two transmission units are respectively arranged at both ends of the upper cross bar. Each transmission unit includes a first ratchet, a first spring, a second ratchet and a second spring. Each first ratchet is rotatably arranged on a swing tube, and the first spring connects the first ratchet and the swing tube. The axis of the sliding wheel is arranged along the second direction, and a ring gear is fixedly arranged on the sliding wheel. The ring gear and the sliding wheel are coaxially arranged, and the first ratchet and the ring gear are meshed. The second ratchet is rotatably arranged on the upper cross bar, and the second ratchet is on the upper side of the ring gear. The second ratchet and the ring gear are meshed. The second spring connects the second ratchet and the upper cross bar. When the lower ends of the two swing tubes move away from each other, the swing tube drives the ring gear to rotate in the forward direction through the first ratchet. The second ratchet and the ring gear are meshed, thereby limiting the reverse rotation of the ring gear.

[0013] Furthermore, a limit plate is fixedly provided at the lower end of each swing tube. The drive assembly also includes a drive unit, which includes a fixed rod, a sliding rod, a third spring and two hinged rods. The fixed rod is fixedly provided on the lower cross bar, and the fixed rod is vertically arranged. The sliding rod is arranged along the second direction, and a connecting ring is fixedly provided at one end of the sliding rod, and the connecting ring is slidably provided on the fixed rod up and down. One end of the two hinged rods is rotatably connected to the connecting ring, and the other end of each hinged rod is fixedly provided with a connecting ball, and each connecting ball is hinged to a limit plate ball. The third spring connects the fixed rod and the connecting ring.

[0014] Furthermore, the adjustment mechanism further includes an unlocking assembly, the unlocking assembly including an unlocking rod, the unlocking rod including a first connecting rod and a second connecting rod, the first connecting rod being vertically arranged, the lower end of the first connecting rod being slidably arranged on the lower crossbar, the second connecting rod being arranged along the second direction, the second connecting rod being fixedly connected to the upper end of the first connecting rod, the second connecting rod abutting against the second ratchet, and the second connecting rod being located between the second ratchet and the ring gear.

[0015] Furthermore, each oscillating tube is provided with a fixed rubber pad and multiple sliding rubber pads. The multiple sliding rubber pads are sequentially distributed along the axial direction of the oscillating tube and are disposed within the oscillating tube so as to slide up and down. The fixed rubber pad is fixed within the oscillating tube and is located below the sliding rubber pad. The steel wire rope passes through the fixed rubber pad and the multiple sliding rubber pads in sequence.

[0016] Furthermore, each adjustment assembly includes a tensioning wheel, a base, and a fourth spring. The base is slidably mounted on the lower crossbar, and the fourth spring connects the base and the lower crossbar. The tensioning wheel is rotatably mounted on the base, with the axial direction of the tensioning wheel arranged along the second direction, and the wire rope is wound around the tensioning wheel.

[0017] Furthermore, the housing is fixedly provided with second baffles on both sides along the first direction, the second baffles are vertically arranged, and along the second direction, the second baffles are eccentrically arranged relative to the housing and biased towards the first side of the housing.

[0018] Further, a plurality of ammeters are fixedly arranged in the shell.

[0019] Further, a fixing hole is arranged at the lower end of each swing pipe, and a matching hole is arranged at the two ends of the lower horizontal rod. When the adjusting assembly is in the second state, each fixing hole and one matching hole correspond, and the swing pipe and the lower horizontal rod are connected through the second screw.

[0020] The beneficial effects of the application are as follows: the height-adjustable ammeter box is provided with a connecting mechanism and an adjusting mechanism. During installation, the upper horizontal rod and the lower horizontal rod are fixedly arranged on the wall surface, the upper horizontal rod is on the upper side of the lower horizontal rod, and the lower horizontal rod is close to the ground. Then, the two ends of the steel wire rope are connected with the upper and lower sides of the shell.

[0021] When the shell needs to be removed or moved downward, the sliding wheel is reversely rotated, so that the shell is moved downward through the steel wire rope. The height of the shell can be adjusted arbitrarily, and the adjustment is simple and convenient. The shell does not need to be completely disassembled and reinstalled, and the use is more efficient and convenient.

[0022] During use, since the number of air holes is greater than the number of heat dissipation holes, the heat generated by the ammeter enters the swing pipe from the heat dissipation holes of the shell and the air holes corresponding to the heat dissipation holes on the swing pipe, and then is discharged from the air holes not corresponding to the heat dissipation holes. The heat dissipation channel is tortuous, a static pressure area is formed in the swing pipe, and the probability of dust entering the inside of the shell is reduced under strong wind conditions. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0024] Figure 1 A structural schematic view of the height-adjustable ammeter box provided by the embodiment of the application; Figure 2 A side view of the height-adjustable ammeter box provided by the embodiment of the application; Figure 3 A sectional view in direction A-A in the figure; Figure 2 A sectional view in direction B in the figure; Figure 4 Figure 3 An enlarged view of position B in the figure;​ Figure 5 for Figure 3 Enlarged view of point C in the middle; Figure 6 A schematic structural diagram of an adjustable height electricity meter box provided by an embodiment of the present invention when the adjustment component is in a first state; Figure 7 A schematic structural diagram of an adjustable height electricity meter box provided by an embodiment of the present invention when the adjustment component is in a second state; Figure 8 for Figure 7 Cross-sectional view in the middle DD direction; Figure 9 for Figure 8 Enlarged view of point E in the middle; Figure 10 A schematic structural diagram of a shell of a height-adjustable electricity meter box provided by an embodiment of the present invention.

[0025] In the figure: 100, upper crossbar; 102, limiting block; 110, connecting block; 111, arc groove; 112, first screw; 113, first baffle; 120, swing tube; 121, vent hole; 122, fixing hole; 123, limit plate; 1231, connecting ball; 124, first ratchet; 125, first spring; 126, fixed rubber pad; 127, sliding rubber pad; 130, lower crossbar ; 131, matching hole; 140, sliding wheel; 141, second ratchet; 142, second spring; 143, gear ring; 150, tensioning wheel; 151, base; 152, fourth spring; 160, sliding rod; 161, fixing rod; 162, third spring; 163, hinged rod; 170, unlocking rod; 200, housing; 201, heat dissipation hole; 202, second baffle; 300, wire rope. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figures 1 to 10 As shown, an embodiment of the present invention provides a height-adjustable electricity meter box, comprising a housing 200, a connecting mechanism, and an adjusting mechanism. The connecting mechanism comprises an upper crossbar 100 and a lower crossbar 130. Both the upper crossbar 100 and the lower crossbar 130 are arranged along a first direction, which is a horizontal direction, and are fixedly mounted on a wall, with the upper crossbar 100 located above the lower crossbar 130.

[0028] The adjustment mechanism includes a drive assembly and two adjustment assemblies, which are arranged in sequence along a first direction. Each adjustment assembly includes a swing tube 120, a wire rope 300, and a sliding wheel 140. The upper end of each swing tube 120 is disposed on the upper crossbar 100, and the swing tube 120 is capable of swinging, and the lower ends of the two swing tubes 120 can move closer to or further away from each other. Each swing tube 120 is provided with a plurality of ventilation holes 121, which are arranged in sequence along the axial direction of the swing tube 120. Along the first direction, a plurality of heat dissipation holes 201 are respectively provided on both sides of the housing 200, and the plurality of heat dissipation holes 201 are arranged in sequence along the vertical direction. The ventilation holes 121 are connected to the heat dissipation holes 201, and the number of ventilation holes 121 is greater than the number of heat dissipation holes 201.

[0029] The sliding wheel 140 is rotatably mounted on the upper crossbar 100. One end of the steel wire rope 300 is connected to the upper side of the housing 200. The other end of the steel wire rope 300 is wound around the sliding wheel 140, passes through a swing tube 120, and is connected to the lower side of the housing 200. The driving assembly drives the sliding wheel 140 to rotate. When the sliding wheel 140 rotates forward, the housing 200 is driven upward by the steel wire rope 300. When the sliding wheel 140 rotates backward, the steel wire rope 300 is allowed to drive the housing 200 downward. Figure 4 As shown, the forward rotation of the sliding wheel 140 is counterclockwise rotation, and the reverse rotation of the sliding wheel 140 is counterclockwise rotation.

[0030] First, secure the upper and lower crossbars 100 and 130 to the wall, with the upper crossbar 100 positioned above the lower crossbar 130 and the lower crossbar 130 close to the ground. Next, securely connect one end of the wire rope 300 to the upper end of the housing 200. The other end of the wire rope 300 passes over the pulley 140, enters the swing tube 120, and finally exits from the lower portion of the swing tube 120, securing it to the lower side of the housing 200.

[0031] The drive assembly drives the sliding wheel 140 in forward rotation. This forward rotation of the sliding wheel 140 drives the housing 200 upward via the steel wire rope 300. Once the housing 200 reaches a desired height, the sliding wheel 140 stops rotating. To remove or move the housing 200 downward, the sliding wheel 140 rotates in the opposite direction, driving the housing 200 downward via the steel wire rope 300. The height of the housing 200 can be adjusted easily and conveniently, eliminating the need to completely remove and reinstall the housing 200, making it more efficient and convenient.

[0032] During use of a height-adjustable electric meter box, since the number of vents 121 is greater than the number of heat dissipation holes 201, the heat generated by the electric meter enters the oscillating tube 120 through the heat dissipation holes 201 of the shell 200 and the vents 121 on the oscillating tube 120 corresponding to the heat dissipation holes 201, and then is discharged from the oscillating tube 120 through the vents 121 not corresponding to the heat dissipation holes 201. The heat dissipation channel is tortuous, forming a static pressure area inside the oscillating tube 120, thereby reducing the probability of dust entering the interior of the shell 200 under strong wind conditions.

[0033] In this embodiment, each adjustment assembly also includes a connecting block 110, on which a connecting column is fixedly provided, and an arcuate groove 111 is provided on the connecting column. The arcuate groove 111 and the connecting column are coaxially arranged, and the central angle of the arcuate groove 111 is 90°. Connecting grooves are respectively provided at both ends of the upper cross bar 100, and a limiting block 102 is fixedly provided in each connecting groove. Each connecting column is rotatably provided in a connecting groove to adjust the relative position of the connecting block 110 and the upper cross bar 100, and after the adjustment is completed, the connecting block 110 and the upper cross bar 100 are locked by a first screw 112. Each limiting block 102 is slidably provided in an arcuate groove 111. The upper end of the swing tube 120 is rotatably connected to the connecting block 110.

[0034] Two oscillating tubes 120 are disposed on either side of the housing 200 along a first direction. Two first baffles 113 are fixedly mounted on the connecting block 110, one on each side. The adjustment assembly has a first state and a second state. In the first state, the two first baffles 113 are sequentially arranged along a second direction, which is horizontal and perpendicular to the first direction. Along the second direction, the two sides of the housing 200 are a first side and a second side, with the second side of the housing 200 proximate to the wall. The vent 121 is located on one side of the oscillating tube 120 along the second direction, and is proximate to the first side of the housing 200. The oscillating tube 120 is capable of oscillating in the first direction, and the lower ends of the two oscillating tubes 120 can move away from or toward each other. In the second state, the two first baffles 113 are sequentially arranged along the first direction, and the vent 121 is located on one side of the oscillating tube 120 along the first direction, and is proximate to the side of the housing 200. The oscillating tube 120 no longer oscillates along the first direction.

[0035] Initially, the adjustment assembly is in the first state, allowing the swing tube 120 to swing in the second direction. When the housing 200 is raised to a desired height, the connecting block 110 is rotated. Constrained by the limiting block 102 and the arcuate slot 111, the connecting block 110 can only rotate 90°. At this point, the adjustment assembly is in the second state, with the two first baffles 113 restricting the swing tube 120 from swinging in the second direction. Furthermore, the ventilation holes 121 and the heat dissipation holes 201 are aligned, improving heat dissipation.

[0036] In this embodiment, the drive assembly includes two transmission units. The two transmission units are respectively arranged at both ends of the upper crossbar 100. Each transmission unit includes a first ratchet 124, a first spring 125, a second ratchet 141, and a second spring 142. Each first ratchet 124 is rotatably mounted on a swing tube 120, and the first spring 125 connects the first ratchet 124 and the swing tube 120. The axis of the sliding wheel 140 is arranged along the second direction. The sliding wheel 140 is fixedly provided with a ring gear 143, which is coaxial with the sliding wheel 140, and the first ratchet 124 and the ring gear 143 are meshed. The second ratchet 141 is rotatably mounted on the upper crossbar 100, located above the ring gear 143, and meshed with the ring gear 143. The second spring 142 connects the second ratchet 141 and the upper crossbar 100.

[0037] When the lower ends of the two swing tubes 120 move away from each other, the swing tubes 120 drive the ring gear 143 to rotate forward via the first ratchet teeth 124. The ring gear 143 then drives the sliding wheel 140 to rotate forward synchronously, and the wire rope 300 drives the housing 200 upward. The second ratchet teeth 141 engage with the ring gear 143, thereby limiting the reverse rotation of the ring gear 143.

[0038] In this embodiment, a limit plate 123 is fixedly provided at the lower end of each swing tube 120. The drive assembly also includes a drive unit, which includes a fixed rod 161, a sliding rod 160, a third spring 162 and two hinged rods 163. The fixed rod 161 is fixedly provided on the lower cross bar 130, and the fixed rod 161 is vertically arranged. The sliding rod 160 is arranged along the second direction, and a connecting ring is fixedly provided at one end of the sliding rod 160, and the connecting ring is slidably provided on the fixed rod 161 up and down. One end of the two hinged rods 163 is rotatably connected to the connecting ring, and the other end of each hinged rod 163 is fixedly provided with a connecting ball 1231, and each connecting ball 1231 is ball-hinged with a limit plate 123. The third spring 162 connects the fixed rod 161 and the connecting ring.

[0039] The sliding rod 160 is stepped downward, and the sliding rod 160 drives the two hinge rods 163 to move away from each other through the connecting ring, thereby causing the lower ends of the two swing tubes 120 to move away from each other.

[0040] In this embodiment, the adjustment mechanism further includes an unlocking assembly, which includes an unlocking lever 170. The unlocking lever 170 includes a first connecting rod and a second connecting rod. The first connecting rod is vertically arranged, and its lower end is slidably mounted on the lower crossbar 130. The second connecting rod is arranged along the second direction, and is fixedly connected to the upper end of the second connecting rod. The second connecting rod abuts against the second ratchet 141, and the second connecting rod is located between the second ratchet 141 and the ring gear 143. The second connecting rod moves upward, pushing the second ratchet 141 to rotate away from the ring gear 143, thereby disengaging the second ratchet 141 and the ring gear 143.

[0041] In this embodiment, each oscillating tube 120 is provided with a fixed rubber pad 126 and multiple sliding rubber pads 127. The sliding rubber pads 127 are sequentially distributed along the axial direction of the oscillating tube 120 and are disposed within the oscillating tube 120 so as to slide up and down. The fixed rubber pad 126 is fixedly disposed within the oscillating tube 120 and is located below the sliding rubber pad 127. The wire rope 300 passes through the fixed rubber pad 126 and the multiple sliding rubber pads 127 in sequence.

[0042] As the housing 200 moves downward, the steel wire rope 300 in the oscillating tube 120 moves upward, driving the sliding rubber pad 127 upward. The sliding rubber pad 127 then expels the air in the oscillating tube 120 outward through the vent 121. The airflow through the vent 121 cleans the surface of the housing 200. Meanwhile, when the adjustment assembly is in the first state, since the vent 121 and the heat dissipation hole 201 are not directly aligned, the airflow through the vent 121 does not blow dust from the surface of the housing 200 into the housing 200.

[0043] In this embodiment, each adjustment assembly further includes a tensioning pulley 150, a base 151, and a fourth spring 152. The base 151 is slidably mounted on the lower crossbar 130, and the fourth spring 152 connects the base 151 and the lower crossbar 130. The tensioning pulley 150 is rotatably mounted on the base 151, with the axial direction of the tensioning pulley 150 extending along the second direction. The wire rope 300 is wound around the tensioning pulley 150.

[0044] In this embodiment, second baffles 202 are fixedly mounted on both sides of the housing 200 along the first direction. The second baffles 202 are vertically disposed. Along the second direction, the second baffles 202 are eccentrically disposed relative to the housing 200 and biased toward the first side of the housing 200. The second baffles 202 prevent dust from scattering.

[0045] In this embodiment, a plurality of electricity meters are fixedly installed in the housing 200 .

[0046] In this embodiment, each oscillating tube 120 has a fixing hole 122 at its lower end, and the lower crossbar 130 has matching holes 131 at each end. When the adjustment assembly is in the second state, each fixing hole 122 corresponds to a matching hole 131, and the oscillating tube 120 and the lower crossbar 130 are connected via a second screw. Each oscillating tube 120 has a first mounting hole at its upper end and a second mounting hole at its lower end. The wire rope 300 enters the oscillating tube 120 through the first mounting hole and exits through the second mounting hole to the outside of the oscillating tube 120.

[0047] Working process: First, secure the upper crossbar 100 and lower crossbar 130 to the wall, with the upper crossbar 100 positioned above the lower crossbar 130 and the lower crossbar 130 close to the ground. Initially, the adjustment assembly is in the first state, with the two first baffles 113 positioned on either side of the connecting block 110 along the second direction. This allows the swing tube 120 to swing in the first direction. The first and second ratchet teeth 124, 141 engage with the ring gear 143.

[0048] Next, one end of the wire rope 300 is fixedly connected to the upper end of the housing 200. The other end of the wire rope 300 passes around the sliding pulley 140, enters the swing tube 120 through the first mounting hole, passes through the fixed rubber pad 126 and multiple sliding rubber pads 127, and then exits the second mounting hole to the outside of the swing tube 120. It then passes around the tensioning pulley 150 and is fixedly connected to the lower side of the housing 200. Then, the sliding rod 160 is pressed downward. The sliding rod 160, via the connecting ring, drives the two hinged rods 163 away from each other, thereby moving the lower ends of the two swing tubes 120 away from each other.

[0049] like Figure 4 As shown, when the lower ends of the two swing tubes 120 move away from each other, the swing tube 120 drives the ring gear 143 to rotate in the forward direction through the first ratchet 124, that is, the ring gear 143 rotates counterclockwise, and the ring gear 143 drives the sliding wheel 140 to rotate synchronously. When the sliding wheel 140 rotates counterclockwise, the housing 200 is driven to move upward through the wire rope 300.

[0050] Next, the sliding rod 160 is released. Under the action of the third spring 162, the sliding rod 160 moves upward and resets, and drives the lower ends of the two swing tubes 120 closer to each other and resets through the hinge rod 163. The first ratchet 124 and one tooth of the ring gear 143 disengage and then contact the next tooth. Under the action of the second ratchet 141, the ring gear 143 is stuck and can only rotate counterclockwise, thus preventing the sliding wheel 140 from rotating clockwise under the action of the wire rope 300, causing the housing 200 to move downward. Each time the sliding rod 160 descends, the ring gear 143 and the sliding wheel 140 rotate once, and then drive the housing 200 upward a certain distance through the wire rope 300. The housing 200 is lifted to a specified height and stops.

[0051] The connecting block 110 is then rotated 90°. At this point, the adjustment assembly is in the second state, with the vent holes 121 located on one side of the oscillating tube 120 along the first direction and close to the housing 200. Because the number of vent holes 121 is greater than the number of heat dissipation holes 201, heat generated by the meter enters the oscillating tube 120 through the heat dissipation holes 201 in the housing 200 and the vent holes 121 on the oscillating tube 120 that correspond to the heat dissipation holes 201, and then exits the oscillating tube 120 through the vent holes 121 that do not correspond to the heat dissipation holes 201. This tortuous heat dissipation path creates a static pressure zone within the oscillating tube 120, reducing the probability of dust entering the housing 200 in strong winds.

[0052] When the adjustment assembly is in the second state, each fixing hole 122 corresponds to a matching hole 131, and the second screw is then used to securely connect the swing tube 120 and the lower crossbar 130. Furthermore, when the housing 200 is in use, it is isolated from the wall, providing improved heat dissipation, preventing heat transfer from the wall to the housing in high-temperature environments, and being unaffected by the wall surface.

[0053] When the housing 200 needs to be removed or moved downward, the second screws at the fixing hole 122 and the matching hole 131 are removed. The connecting block 110 is then rotated again, so that the adjustment assembly is in the first state. The two first baffles 113 are arranged in sequence along the second direction, and the vent hole 121 is located on one side of the swing tube 120 along the second direction and close to the first side of the housing 200.

[0054] Then, step on the sliding rod 160 and do not release it, so that the first ratchet 124 and the ring gear 143 are disengaged. At the same time, lift the unlocking rod 170 upward, and the second connecting rod moves upward to push the second ratchet 141 to rotate in the direction away from the ring gear 143, so that the second ratchet 141 and the ring gear 143 are disengaged. At this time, the sliding wheel 140 can rotate freely, and the housing 200 moves downward under the action of gravity, and the sliding wheel 140 rotates in the opposite direction. And under the action of the fixed rubber pad 126 and the multiple sliding rubber pads 127, the housing 200 descends slowly to avoid excessive impact on the housing 200. This causes damage to the housing 200 and injury to the operator. The height of the housing 200 can be adjusted arbitrarily, and the adjustment is simple and convenient. There is no need to completely remove the housing 200 and then reinstall it, which makes it more convenient to use.

[0055] At the same time, when the shell 200 moves downward, the steel wire rope 300 in the swing tube 120 moves upward, and the steel wire rope 300 drives the sliding rubber pad 127 to move upward. The sliding rubber pad 127 discharges the gas in the swing tube 120 through the vent 121. The airflow at the vent 121 cleans the surface of the shell 200. Since the vent 121 and the heat dissipation hole 201 are not directly facing each other, the airflow at the vent 121 will not blow the dust on the surface of the shell 200 into the shell 200, and under the action of the second baffle 202, the dust will not be scattered.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A height-adjustable electric meter box, characterized by: The device comprises a housing, a connecting mechanism and an adjusting mechanism; the connecting mechanism comprises an upper crossbar and a lower crossbar, both of which are arranged along a first direction, which is a horizontal direction, and are fixedly arranged on the wall, with the upper crossbar being located above the lower crossbar; The adjustment mechanism includes a drive assembly and two adjustment assemblies, which are sequentially arranged along a first direction; each adjustment assembly includes a swing tube, a wire rope, and a sliding wheel; the upper end of each swing tube is disposed on an upper crossbar, and the swing tube is capable of swinging; each swing tube is provided with a plurality of ventilation holes, which are sequentially distributed along the axial direction of the swing tube; along the first direction, a plurality of heat dissipation holes are respectively provided on both sides of the housing, and the plurality of heat dissipation holes are sequentially distributed along a vertical direction, the ventilation holes are connected to the heat dissipation holes, and the number of ventilation holes is greater than the number of heat dissipation holes; The sliding wheel is rotatably arranged on the upper cross bar; one end of the steel wire rope is connected to the upper side of the shell, and the other end of the steel wire rope is wound around the sliding wheel, passes through a swing tube and is connected to the lower side of the shell; the driving assembly drives the sliding wheel to rotate, and when the sliding wheel rotates forward, the shell is driven to move upward through the steel wire rope, and when the sliding wheel rotates reversely, the shell is allowed to move downward through the steel wire rope.

2. The height-adjustable electric meter box according to claim 1, characterized in that: Each adjustment assembly also includes a connecting block, a connecting column is fixedly provided on the connecting block, an arc-shaped groove is formed on the connecting column, and the arc-shaped groove and the connecting column are coaxially arranged; connecting grooves are respectively formed at both ends of the upper cross bar, and a limiting block is fixedly provided in each connecting groove; each connecting column is rotatably provided in a connecting groove to adjust the relative position of the connecting block and the upper cross bar, and after the adjustment is completed, the connecting block and the upper cross bar are locked by a first screw; each limiting block is slidably provided in an arc-shaped groove; the upper end of the swing tube is rotatably connected to the connecting block; Two swing tubes are arranged on both sides of the shell along the first direction; two first baffles are fixedly provided on the connecting block, and the two first baffles are respectively arranged on both sides of the connecting block; the adjusting component has a first state and a second state, and the first state of the adjusting component is that the two first baffles are distributed in sequence along the second direction, the second direction is horizontal, and the second direction is perpendicular to the first direction; along the second direction, the two sides of the shell are the first side and the second side, and the second side of the shell is close to the wall; the vent is on the side of the swing tube along the second direction, and the vent is close to the first side of the shell; the swing tube can swing along the first direction, and the lower ends of the two swing tubes can move away from or approach each other; the second state of the adjusting component is that the two first baffles are distributed in sequence along the first direction, the vent is on the side of the swing tube along the first direction, and the vent is on the side close to the shell; the swing tube no longer swings along the first direction.

3. The height-adjustable electric meter box according to claim 2, characterized in that: The drive assembly includes two transmission units; the two transmission units are respectively arranged at both ends of the upper cross bar; each transmission unit includes a first ratchet, a first spring, a second ratchet and a second spring; each first ratchet is rotatably arranged on a swing tube, and the first spring connects the first ratchet and the swing tube; the axis of the sliding wheel is set along the second direction, and a gear ring is fixedly arranged on the sliding wheel, the gear ring and the sliding wheel are coaxially arranged, and the first ratchet and the gear ring are meshed; the second ratchet is rotatably arranged on the upper cross bar, the second ratchet is on the upper side of the gear ring, and the second ratchet and the gear ring are meshed; the second spring connects the second ratchet and the upper cross bar; when the lower ends of the two swing tubes move away from each other, the swing tube drives the gear ring to rotate forward through the first ratchet; the second ratchet and the gear ring are meshed, thereby limiting the reverse rotation of the gear ring.

4. The height-adjustable electric meter box according to claim 3, characterized in that: A limit plate is fixedly provided at the lower end of each swing tube; the drive assembly also includes a drive unit, which includes a fixed rod, a sliding rod, a third spring and two hinged rods; the fixed rod is fixedly provided on the lower cross rod, and the fixed rod is vertically arranged; the sliding rod is arranged along the second direction, and a connecting ring is fixedly provided at one end of the sliding rod, and the connecting ring is slidably arranged on the fixed rod up and down; one end of the two hinged rods is rotatably connected to the connecting ring, and the other end of each hinged rod is fixedly provided with a connecting ball, and each connecting ball is hinged to a limit plate ball; the third spring connects the fixed rod and the connecting ring.

5. The height-adjustable electric meter box according to claim 3, characterized in that: The adjustment mechanism also includes an unlocking assembly, the unlocking assembly includes an unlocking rod, the unlocking rod includes a first connecting rod and a second connecting rod, the first connecting rod is vertically arranged, and the lower end of the first connecting rod is slidably arranged on the lower cross rod; the second connecting rod is arranged along the second direction, the second connecting rod and the upper end of the first connecting rod are fixedly connected, the second connecting rod and the second ratchet are against each other, and the second connecting rod is between the second ratchet and the ring gear.

6. The height-adjustable electric meter box according to claim 1, characterized in that: A fixed rubber pad and multiple sliding rubber pads are provided in each swing tube; the multiple sliding rubber pads are distributed in sequence along the axial direction of the swing tube, and the sliding rubber pads are arranged in the swing tube so as to slide up and down; the fixed rubber pad is fixed in the swing tube, and the fixed rubber pad is at the lower end of the sliding rubber pad; the steel wire rope passes through the fixed rubber pad and the multiple sliding rubber pads in sequence.

7. The height-adjustable electric meter box according to claim 2, characterized in that: Each adjustment assembly also includes a tensioning wheel, a base and a fourth spring; the base is slidably arranged on the lower cross bar, and the fourth spring connects the base and the lower cross bar; the tensioning wheel is rotatably arranged on the base, the axial direction of the tensioning wheel is arranged along the second direction, and the wire rope is wound around the tensioning wheel.

8. The height-adjustable electric meter box according to claim 2, characterized in that: Second baffles are fixedly provided on both sides of the shell along the first direction, and the second baffles are vertically arranged; along the second direction, the second baffles are eccentrically arranged relative to the shell, and the second baffles are biased towards the first side of the shell.

9. The height-adjustable electric meter box according to claim 1, characterized in that: A plurality of electric meters are fixedly arranged in the shell.

10. The height-adjustable electric meter box according to claim 1, characterized in that: A fixing hole is provided at the lower end of each swing tube, and matching holes are provided at both ends of the lower cross bar; when the adjustment assembly is in the second state, each fixing hole corresponds to a matching hole, and the swing tube and the lower cross bar are connected by a second screw.

Images