High-safety electric energy measuring device

Abstract

A high-safety electric energy measuring device disclosed by the present invention comprises a meter box, an electric energy meter is installed in the meter box, the electric energy meter comprises a meter body, wiring terminals and auxiliary supporting pipes, the wire inlet end and the wire outlet end of the meter body are electrically connected with the wiring terminals respectively, and the wire inlet end and the wire outlet end are fixedly communicated with the auxiliary supporting pipes respectively. The auxiliary supporting pipes correspond to the wiring terminals, supports are fixed to the positions, located on the upper side and the lower side of the meter body, in the meter box respectively, and through main supporting pipes are fixed to the supports respectively. By adjusting the position of the flame-retardant sponge block in the threading pipe, the flame-retardant sponge block extrudes the grit, so that the grit is tightly attached to the outer wall of the electric wire, on one hand, air in the threading pipe can be dried, and damp gas flowing to the auxiliary supporting pipe and the wiring terminal through the threading pipe is reduced; the risk of short circuit between the wiring terminals caused by excessive moisture is reduced, and on the other hand, fire extinguishing and flame retarding can be carried out on the wires at the wiring terminals.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy measurement, and in particular to a high-safety electric energy measurement device. Background Art

[0002] For the purpose of metering or billing, the electric energy consumed by electrical appliances is often measured, which requires the use of an electric energy measuring device. The most common electric energy measuring device in life is the electric energy meter. However, a single electric energy meter can only perform basic electric energy measurement work, and cannot achieve functions such as waterproof, dustproof, anti-theft and safety protection. Therefore, it is usually equipped with a corresponding box to form a relatively complete electric energy measuring device. However, the existing electric energy measuring devices used outdoors are not very safe, and there are certain deficiencies in fire retardancy and preventing random wiring, which brings hidden dangers to electricity safety and highlights the deficiencies of the existing technology. Summary of the invention

[0003] The purpose of the present invention is to provide a high-safety electric energy measuring device to solve the technical problem that the existing electric energy measuring devices have low safety.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A high-safety electric energy measuring device comprises a meter box, in which an electric energy meter is installed, the electric energy meter comprises a meter body, wiring terminals, and an auxiliary supporting tube, the inlet and outlet ends of the meter body are electrically connected to the wiring terminals respectively, and the inlet and outlet ends are fixedly connected to auxiliary supporting tubes respectively, the auxiliary supporting tubes correspond to the wiring terminals, and brackets are fixedly provided at the upper and lower sides of the meter body inside the meter box, each of the brackets is fixed with a through main supporting tube, and a connected and flexible threading tube that is reciprocally bent up and down is installed between each main supporting tube and each auxiliary supporting tube, flame-retardant sponge blocks are respectively inserted into the upper and lower parts of the threading tube, the gap between the threading tube and the two flame-retardant sponge blocks is filled with gravel, and the outer wall of the meter box is also fixedly connected with an inlet tube and an outlet tube.

[0005] Based on the above technical solution, the threading tube is a heat shrink tube, and the heat shrink tube is plugged outside the main supporting tube and the auxiliary supporting tube.

[0006] Based on the above technical solution, the inlet pipe is fixedly connected to the left part of the meter box, and the left part is bent downward, the outlet pipe is fixedly connected to the bottom of the meter box, and flame-retardant sponge blocks are respectively inserted into the inlet pipe and the outlet pipe.

[0007] On the basis of the above technical scheme, the wiring terminal includes a stator, a slot, a constant pressure wire slot, a mover, a tightening bolt, a pin, and a dynamic pressure wire slot. The stator is electrically connected to the electric energy measurement circuit inside the meter body. The left middle part and the right middle part of the stator are respectively provided with slots that penetrate front and back. The front end of the stator is penetrated by the constant pressure wire slot that gathers backward from top to bottom. The mover is connected to the meter body in a front-to-back sliding manner. The mover is located in front of the stator, and the front part is rotatably connected with the tightening bolt along the front-to-back direction. The left middle part and the right middle part of the mover are respectively provided with pins matching the slot, and the rear end is penetrated by the dynamic pressure wire slot that gathers forward from top to bottom. The constant pressure wire slot corresponds to the dynamic pressure wire slot front and back. The tightening bolt is threadedly connected to the meter body, and the secondary support tube corresponds to the constant pressure wire slot and the dynamic pressure wire slot up and down.

[0008] On the basis of the above technical solution, a cover plate is installed on the upper and lower parts of the meter body respectively, the cover plate is plugged into the right part of the meter body left and right, the left part of the cover plate is plugged into the front and back with fastening bolts, the fastening bolts are threadedly connected to the meter body, the rear end of the cover plate is concave, the front part of the concave part of the rear end of the cover plate is filled with a flame retardant sponge board, a soft insulating rubber pad is fixed to the rear end of the flame retardant sponge board, the insulating rubber pad can move forward and backward along the penetration part of the cover plate, and the rear end of the insulating rubber pad can fit and contact with the front end of the tightening bolt.

[0009] On the basis of the above technical scheme, the meter box includes a box body and a box cover, the front part of the box body penetrates forward, and the left part of the box body is hinged with a box cover at the front and rear ends. The box cover can cover the front part of the box body and is made of transparent material. A lock is fixed to the right part of the box body, and a lock is fixed to the right part of the box cover. The lock can be locked with the lock to achieve stable covering of the box cover on the box body. The left and right parts of the box body are each fixed with a mounting seat, and the mounting seat is penetrated with mounting holes at the front and rear ends. A counting device and a transmission mechanism are also installed in the box body, and the transmission mechanism is transmission-connected with the box cover, the cover plate and the counting device. The working principle of the counting device is mechanical counting or electronic counting. The working principle of the counting device is electronic counting and is equipped with a radio transmission module to transmit counting data to the data terminal in real time.

[0010] On the basis of the above technical scheme, the transmission mechanism includes a shell, a left guide groove, a right guide groove, a right light rod, a left light rod, a left rack, a right rack, a left compression spring, a right compression spring, a transmission shaft, a left gear, a right gear, and a one-way transmission mechanism, the right part of the box body is fixed with a shell together with the table body, the right part of the table body and the shell body are penetrated by the left guide groove together, the right part of the shell body is penetrated by the right guide groove front and back, the cover plate and the left guide groove are plugged into the left and right sides, the right part of the box body is fixed with two horizontal right light rods along the left and right directions, and the right part is fixed with a horizontal left light rod along the front and back directions, the left guide groove and the right light rod are connected with the left rack together for left and right sliding movement, the right guide groove and the left light rod are connected with the right rack together for front and back sliding movement, the left rack and the box body are fixed with the left compression spring together, the right rack and the box body are fixed with the right compression spring together, and the left rack is The right rack has a tendency to move leftward and can conflict with the right end of the cover plate under the elastic repulsive force of the right compression spring, and the right rack has a tendency to move forward under the elastic repulsive force of the right compression spring, and the vertical transmission shaft is rotated and connected in the shell, and the transmission shaft is coaxially fixed with a left gear, a right gear and a left gear in sequence from top to bottom, and the teeth of the left rack can mesh with the left gear when the teeth move left and right to a position close to the left gear, and disengage from the left gear when its teeth move to the left or right side of the left gear, and the teeth of the right rack can mesh with the right gear when the teeth move forward and backward to a position close to the right gear, and disengage from the right gear when its teeth move to the front or rear side of the right gear, and the box cover can press the right rack backward, and a one-way transmission mechanism is installed at the bottom of the transmission shaft, the output end of the one-way transmission mechanism is transmission-connected to the counting device, and the input end of the one-way transmission mechanism is transmission-connected to the bottom of the transmission shaft.

[0011] On the basis of the above technical scheme, the one-way transmission mechanism includes a transmission disk, a main support arm, a secondary support arm, a pawl, a lower compression spring, a transmission housing, a ratchet ring, and a No. 1 support shaft. A transmission disk is coaxially fixed to the bottom of the transmission shaft, and two main support arms and secondary support arms are fixed at equal angles on the circumference of the transmission disk. The two main support arms are respectively horizontally hinged with pawls, and a lower compression spring is commonly fixed between the two pawls and the two secondary support arms. The pawl has a tendency to expand and swing outward under the elastic repulsive force of the lower compression spring. A disc-shaped transmission housing is coaxially connected to the bottom of the transmission shaft, and a ratchet ring is coaxially fixed to the inner wall of the transmission housing. The pawl meshes with the ratchet ring under the elastic repulsive force of the lower compression spring to realize one-way transmission. A No. 1 support shaft is coaxially fixed to the bottom end of the transmission disk, and the No. 1 support shaft is transmission-connected to the counting device.

[0012] On the basis of the above technical scheme, the working principle of the counting device is mechanical counting, and the counting device includes a gear transmission, a No. 1 counting disk, a No. 2 supporting shaft, a No. 3 supporting shaft, a No. 4 supporting shaft, a No. 5 supporting shaft, an active incomplete gear, a driven incomplete gear, a driving gear, a driven gear, an arc groove, a No. 2 counting disk, a No. 3 counting disk, and a digital mark. The housing is fixed with a gear transmission, the No. 1 supporting shaft is coaxially fixed with the input shaft of the gear transmission, and the No. 1 counting disk is coaxially fixed with the output shaft of the gear transmission, and the bottom of the housing is rotatably connected with a vertical No. 2 supporting shaft, a No. 3 supporting shaft, a No. 4 supporting shaft and a No. 5 supporting shaft, the output shaft of the gear transmission and the No. 3 supporting shaft are respectively coaxially fixed with an active incomplete gear, the No. 2 supporting shaft and the No. 4 supporting shaft are respectively coaxially fixed with a driven incomplete gear and a driving gear, and the No. 3 supporting shaft is The shaft and the fifth support shaft are respectively coaxially fixed with driven gears, and the circumference of the driven incomplete gear is provided with a plurality of arc grooves matching the outer circumferential wall of the active incomplete gear at equal angles, and the output shaft of the gear transmission box and the second support shaft realize intermittent transmission through the intermittent meshing of the active incomplete gear and the driven incomplete gear, and the second support shaft and the third support shaft realize transmission connection through the meshing of the active gear and the driven gear, and the No. 2 counting disk is coaxially fixed on the No. 3 support shaft, and the No. 3 support shaft and the No. 4 support shaft realize intermittent transmission through the intermittent meshing of the active incomplete gear and the driven incomplete gear, and the No. 4 support shaft realizes transmission connection through the meshing of the active gear and the driven gear, and the No. 3 counting disk is coaxially fixed on the No. 5 support shaft, and the outer walls of the No. 1 counting disk, the No. 2 counting disk and the No. 3 counting disk are respectively provided with digital markings at equal angles along the circumference.

[0013] On the basis of the above technical scheme, the outer walls of the No. 1 counting disk, the No. 2 counting disk and the No. 3 counting disk are respectively provided with ten digital identifications of "0, 1, 2, 3, 4, 5, 6, 7, 8, 9" at equal angles along the circumference, the shell is provided with a transparent observation window, the observation window corresponds to the No. 1 counting disk, the No. 2 counting disk and the No. 3 counting disk front and back, the digital identifications of the No. 1 counting disk, the No. 2 counting disk and the No. 3 counting disk can be observed through the box cover and the observation window, the transmission ratio between the output shaft of the gear transmission and the No. 3 support shaft is ten to one, and the transmission ratio between the No. 3 support shaft and the No. 5 support shaft is ten to one.

[0014] Compared with the prior art, the present invention has the following advantages: by adjusting the position of the flame retardant sponge block in the threading tube, the flame retardant sponge block squeezes the gravel, so that the gravel fits tightly against the outer wall of the wire. On the one hand, the air in the threading tube can be dried, and the flow of humid gas through the threading tube to the auxiliary support tube and the wiring terminal is reduced, thereby reducing the risk of short circuit between the wiring terminals due to excessive moisture. On the other hand, the wires here can be extinguished and flame retardant, thereby preventing the flame from further spreading along the insulating outer skin, thereby reducing the risk of fire. The gravel cooperates with the reciprocatingly bent threading tube to limit the wires well. On the one hand, the looseness of the wires and the false contact with the wiring terminals are effectively reduced. On the other hand, the tightly filled gravel can also prevent the insertion of other wires, thereby increasing the complexity of random wiring, thereby reducing the occurrence of random wiring.

[0015] By heating the heat shrink tube to shrink it, the gravel can be hugged and the gaps between the gravel can be reduced, which greatly increases the filtering effect of moisture in the humid air and greatly reduces the risk of short circuit between the wiring terminals due to excessive moisture. At the same time, the sand is shaped, which indirectly protects the shape of the wires in the heat shrink tube. Without damaging the heat shrink tube, the possibility of threading the wires through the heat shrink tube again is extremely low. After heating, the heat shrink tube will hug the outside of the main support tube and the auxiliary support tube, which greatly reduces the occurrence of random wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the axonometric structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the cooperation between the threading tube and the auxiliary supporting tube of the present invention.

[0018] Figure 3 It is a right-side cross-sectional structural schematic diagram of the threading tube of the present invention when it cooperates with the main support tube and the flame-retardant sponge block.

[0019] Figure 4 It is a schematic diagram of the cooperation between the cover plate and the left guide groove of the present invention.

[0020] Figure 5 It is a schematic diagram of the matching of the slot and the pin of the present invention.

[0021] Figure 6 It is a schematic diagram of the cooperation between the driving incomplete gear and the driven incomplete gear of the present invention.

[0022] Figure 7 It is a schematic diagram of the coordination of the flame retardant sponge board, the cover plate and the insulating rubber pad of the present invention.

[0023] Figure 8 It is a schematic diagram of the cooperation between the pawl and the ratchet ring of the present invention.

[0024] In the figure: 1, meter box, 3, meter body, 5, auxiliary support tube, 6, bracket, 7, main support tube, 8, threading tube, 9, flame retardant sponge block, 10, inlet tube, 11, outlet tube, 13, stator, 14, slot, 15, fixed pressure wire groove, 16, mover, 17, tightening bolt, 18, pin, 19, dynamic pressure wire groove, 20, cover plate, 21, fastening bolt, 22, flame retardant sponge plate, 23, insulating rubber pad, 24, box body, 25, box cover, 26, lock, 27, lock buckle, 28, mounting seat, 29, mounting hole, 32, shell, 33, left guide groove, 34, right guide groove, 35, right light rod, 36, left light rod, 37, left rack, 38, right rack, 39, Left compression spring, 40, right compression spring, 41, transmission shaft, 42, left gear, 43, right gear, 45, transmission plate, 46, main support arm, 47, secondary support arm, 48, pawl, 49, lower compression spring, 50, transmission housing, 51, ratchet ring, 52, support shaft No. 1, 53, gear transmission box, 54, counting disk No. 1, 55, support shaft No. 2, 56, support shaft No. 3, 57, support shaft No. 4, 58, support shaft No. 5, 59, active incomplete gear, 60, driven incomplete gear, 61, active gear, 62, driven gear, 63, arc groove, 64, counting disk No. 2, 65, counting disk No. 3, 66, digital identification, 67, observation window. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-Figure 8 As shown, a high-safety electric energy measuring device includes a meter box 1, in which an electric energy meter is installed, the electric energy meter includes a meter body 3, wiring terminals, and an auxiliary supporting tube 5, the inlet and outlet ends of the meter body 3 are electrically connected to the wiring terminals respectively, and the inlet and outlet ends are fixedly connected to the auxiliary supporting tube 5 respectively, the auxiliary supporting tube 5 corresponds to the wiring terminals, and the upper and lower sides of the meter body 3 inside the meter box 1 are respectively fixed with brackets 6, and each of the brackets 6 is respectively fixed with a through main supporting tube 7, characterized in that: a connected and flexible threading tube 8 that is reciprocally bent up and down is respectively installed between each of the main supporting tubes 7 and each of the auxiliary supporting tubes 5, and flame-retardant sponge blocks 9 are respectively inserted in the upper and lower parts of the threading tube 8, and the gap between the threading tube 8 and the two flame-retardant sponge blocks 9 is filled with gravel, and the outer wall of the meter box 1 is also fixedly connected with an inlet tube 10 and an outlet tube 11.

[0027] When in use, first remove the threading tube 8, take out the flame retardant sponge block 9 and gravel, and stretch them into a straight shape, then cut through the middle of the flame retardant sponge block 9 to facilitate the passage of the wire, then insert the wire (with an insulating sheath, which is omitted below) into the threading tube 8, and re-plug the flame retardant sponge block 9 at the bottom of the threading tube 8 into the threading tube 8, then bend the threading tube 8 again to restore it to a state of reciprocating bending up and down, then refill the gravel so that the gravel is stored in the bending position at the top of the threading tube 8, then reinstall the flame retardant sponge block 9 on the top of the threading tube 8, and adjust the position of the flame retardant sponge block 9 in the threading tube 8 so that the flame retardant sponge block 9 squeezes the gravel, thereby The gravel is made to fit tightly against the outer wall of the wire. On the one hand, it can dry the air in the wire threading tube 8, reduce the flow of water vapor through the wire threading tube 8 to the auxiliary support tube 5 and the terminal, and reduce the risk of short circuit between the terminal blocks due to excessive moisture. On the other hand, it can extinguish fire and retard the wires here, prevent the flame from spreading further along the insulating sheath, and reduce the risk of fire. The gravel and the reciprocatingly bent wire threading tube 8 can well limit the wires. On the one hand, it effectively reduces the shaking of the wires and the false contact with the terminal blocks. On the other hand, the tightly filled gravel can also prevent other wires from entering, which increases the complexity of random wiring and reduces the occurrence of random wiring.

[0028] The threading tube 8 is a heat shrink tube, which is plugged outside the main supporting tube 7 and the auxiliary supporting tube 5 .

[0029] Furthermore, after the wires are inserted into the heat shrink tube and the heat shrink tube is plugged into the outside of the main support tube 7 and the auxiliary support tube 5, the heat shrink tube is heated to shrink it, so that it can hug the gravel and reduce the gaps between the gravel, greatly increasing the filtering effect of moisture in the humid air, greatly reducing the risk of short circuit between the terminal blocks due to excessive moisture, and at the same time achieving the shaping effect of the gravel, indirectly protecting the shape of the wires in the heat shrink tube. Under the premise of not damaging the heat shrink tube, the possibility of threading the wires through the heat shrink tube again is extremely low, and the heat shrink tube will hug the outside of the main support tube 7 and the auxiliary support tube 5 after heating, thereby greatly reducing the occurrence of random wiring.

[0030] The inlet pipe 10 is fixedly connected to the left part of the meter box 1, and the left part is bent downward. The outlet pipe 11 is fixedly connected to the bottom of the meter box 1. Flame-retardant sponge blocks 9 are also inserted into the inlet pipe 10 and the outlet pipe 11 respectively.

[0031] Furthermore, the curved structure of the inlet pipe 10 and the position of the outlet pipe 11 can reduce the inflow of rainwater and achieve a waterproof effect. The flame-retardant sponge in the inlet pipe 10 and the outlet pipe 11 can reduce the entry of foreign matter (such as insects) into the meter box 1 after being cut and sleeved on the outside of the wires, thereby reducing the risk of circuit failure caused by rainwater and foreign matter.

[0032] The wiring terminal includes a stator 13, a slot 14, a constant pressure wire slot 15, a mover 16, a tightening bolt 17, a pin 18, and a dynamic pressure wire slot 19. The stator 13 is electrically connected to the electric energy measurement circuit inside the meter body 3. The stator 13 is provided with a slot 14 penetrating front and back at the left middle and right middle parts respectively. The front end of the stator 13 is penetrated by a constant pressure wire slot 15 gathered backward from top to bottom. The mover 16 is connected to the meter body 3 for front and back sliding. The mover 16 is located in front of the stator 13, and the front part is connected with a tightening bolt 17 for rotation along the front and back directions. The mover 16 is provided with a pin 18 matching the slot 14 at the left middle and right middle parts respectively, and the rear end is penetrated by a dynamic pressure wire slot 19 gathered forward from top to bottom. The constant pressure wire slot 15 corresponds to the dynamic pressure wire slot 19 front and back. The tightening bolt 17 is threadedly connected to the meter body 3. The secondary support tube 5 corresponds to the constant pressure wire slot 15 and the dynamic pressure wire slot 19 up and down.

[0033] Furthermore, the relative position of the mover 16 and the stator 13 can be adjusted by rotating the tightening bolt 17, thereby changing the spacing between the constant-pressure wire groove 15 and the dynamic-pressure wire groove 19, making it easier to insert the conductor portion of the wire between the two. Moreover, because the constant-pressure wire groove 15 and the dynamic-pressure wire groove 19 are both gathered in a shape, they are more suitable for multi-strand twisted conductors and circular conductors of different diameters.

[0034] The upper and lower parts of the meter body 3 are each installed with a cover plate 20, the cover plate 20 is plugged into the right part of the meter body 3 left and right, the left part of the cover plate 20 is plugged into the front and back with fastening bolts 21, the fastening bolts 21 are threadedly connected to the meter body 3, the rear end of the cover plate 20 is concave, the front part of the concave part of the rear end of the cover plate 20 is filled with a flame retardant sponge board 22, the rear end of the flame retardant sponge board 22 is fixed with a soft insulating rubber pad 23, the insulating rubber pad 23 can move forward and backward along the penetration part of the cover plate 20, and the rear end of the insulating rubber pad 23 can fit and contact with the front end of the tightening bolt 17.

[0035] Furthermore, by making the insulating rubber pad 23 fit in contact with the tightening bolt 17 and then limiting the position of the cover plate 20 by using the tightening bolt 21, the tightening bolt 17 can be prevented from loosening, thereby ensuring the stability of the clamping of the terminal block and the wire conductor. The elastic force generated by the indirect compression of the flame retardant sponge plate 22 by the tightening bolt 17 can act on the tightening bolt 21, thereby also preventing the tightening bolt 21 from loosening.

[0036] The meter box 1 includes a box body 24 and a box cover 25. The front of the box body 24 penetrates forward, and the left part of the box body 24 is hinged with the box cover 25 at the front and rear ends. The box cover 25 can cover the front part of the box body 24 and is made of transparent material. A lock 26 is fixed to the right part of the box body 24, and a lock buckle 27 is fixed to the right part of the box cover 25. The lock buckle 27 can be locked with the lock 26 to achieve stable covering of the box body 24 by the box cover 25. The left and right parts of the box body 24 are respectively fixed with a mounting seat 28, and the mounting seat 28 is penetrated with a mounting hole 29 at the front and rear ends. A counting device and a transmission mechanism are also installed in the box body 24. The transmission mechanism is transmission-connected with the box cover 25, the cover plate 20 and the counting device. The working principle of the counting device is mechanical counting or electronic counting. The working principle of the counting device is electronic counting and is equipped with a radio transmission module to transmit counting data to the data terminal in real time.

[0037] Furthermore, when in use, the lock 26 is used to lock the lock buckle 27 to prevent non-staff from opening the box cover 25 without authorization, and the transmission mechanism can be used to identify the movements of the box cover 25 and the cover plate 20 and act on the counting device to make it accumulate and count. Before and after each maintenance, the staff can record and check whether the recorded data corresponds to each other, so as to know whether non-staff have operated the box cover 25 and the cover plate 20, thereby preventing non-staff from concealing the fact of operation. When the working principle of the counting device is electronic counting, when the counting data changes, it can be checked in time whether it is operated by the staff. If not, it is convenient to carry out on-site processing as soon as possible.

[0038] The transmission mechanism includes a shell 32, a left guide groove 33, a right guide groove 34, a right light rod 35, a left light rod 36, a left rack 37, a right rack 38, a left compression spring 39, a right compression spring 40, a transmission shaft 41, a left gear 42, a right gear 43, and a one-way transmission mechanism. The right part of the box 24 and the watch body 3 are fixed with the shell 32. The right part of the watch body 3 and the shell 32 are penetrated by the left guide groove 33. The right part of the shell 32 is penetrated by the right guide groove 34 from front to back. The cover plate 20 is fixed with the left guide groove 33. The box body 24 is plugged in left and right, and two horizontal right light rods 35 are fixed to the right part of the box body 24 along the left and right directions, and a horizontal left light rod 36 is fixed to the right part along the front and back directions. The left guide groove 33 and the right light rod 35 are connected to a left rack 37 for sliding left and right, and the right guide groove 34 and the left light rod 36 are connected to a right rack 38 for sliding front and back. The left rack 37 and the box body 24 are fixed with a left compression spring 39, and the right rack 38 and the box body 24 are fixed with a right compression spring 40. The left rack 37 is fixed with a left compression spring 40. The right rack 38 has a tendency to move to the left under the elastic repulsive force of the spring 39 and can conflict with the right end of the cover plate 20. The right rack 38 has a tendency to move forward under the elastic repulsive force of the right compression spring 40. The housing 32 is rotatably connected to a vertical transmission shaft 41. The transmission shaft 41 is coaxially fixed with a left gear 42, a right gear 43 and a left gear 42 in sequence from top to bottom. When the teeth of the left rack 37 move left and right to a position close to the left gear 42, they can mesh with the left gear 42, and their teeth move to the left gear 43. 2 is disengaged from the left gear 42 when the gear 42 is on the left or right side, the teeth of the right rack 38 can mesh with the right gear 43 when the teeth move forward and backward to a position close to the right gear 43, and the teeth of the right rack 38 can disengage from the right gear 43 when the teeth move to the front side or rear side of the right gear 43, the box cover 25 can press the right rack 38 backward, a one-way transmission mechanism is installed at the bottom of the transmission shaft 41, the output end of the one-way transmission mechanism is transmission-connected to the counting device, and the input end of the one-way transmission mechanism is transmission-connected to the bottom of the transmission shaft 41.

[0039] Furthermore, when the box cover 25 and the cover plate 20 are closed, the left rack 37 is pressed to the right by the cover plate 20 so that its teeth are located on the right side of the left gear 42 and are not meshed with the left gear 42. The box cover 25 presses the right rack 38 backward so that its teeth are located on the rear side of the right gear 43 and are not meshed with the right gear 43. When the box cover 25 is fully opened, the right rack 38 moves forward under the elastic repulsive force of the right compression spring 40, and after its teeth are meshed with the right gear 43, it moves to the front side of the right gear 43 and is disengaged from the right gear 43. In this process, the transmission shaft 41 is driven to rotate clockwise for a certain angle and stop (viewed from a top view). When the cover 20 is fully opened, the left rack 37 moves a certain distance to the left under the elastic repulsive force of the left compression spring 39, and after its teeth are engaged with the left gear 42, it moves to the left side of the left gear 42 and disengages from the left gear 42. During this process, the transmission shaft 41 will be driven to rotate a certain angle clockwise and stop (viewed from a top view). Similarly, when the cover 20 or the box cover 25 is reopened, the transmission shaft 41 will be caused to rotate a certain angle counterclockwise and stop. By using a one-way transmission mechanism, the clockwise rotation or counterclockwise rotation of the transmission shaft 41 can be transmitted to the counting device, so that the counting device can be activated to achieve counting.

[0040] The one-way transmission mechanism includes a transmission disc 45, a main support arm 46, a secondary support arm 47, a pawl 48, a lower compression spring 49, a transmission housing 50, a ratchet ring 51, and a first support shaft 52. The transmission disc 45 is coaxially fixed to the bottom of the transmission shaft 41. Two main support arms 46 and secondary support arms 47 are fixed at equal angles on the circumference of the transmission disc 45. The two main support arms 46 are respectively horizontally hinged with pawls 48. The lower compression spring 49 is fixed between the two pawls 48 and the two secondary support arms 47. 9, the pawl 48 has a tendency to expand and swing outward under the elastic repulsive force of the lower compression spring 49, the bottom of the transmission shaft 41 is coaxially connected with a disc-shaped transmission housing 50, and a ratchet ring 51 is coaxially fixed to the inner wall of the transmission housing 50. The pawl 48 meshes with the ratchet ring 51 under the elastic repulsive force of the lower compression spring 49 to realize one-way transmission, and a No. 1 support shaft 52 is coaxially fixed to the bottom end of the transmission disk 45, and the No. 1 support shaft 52 is transmission-connected to the counting device.

[0041] Furthermore, when the transmission shaft 41 rotates clockwise (viewed from a top view), the ratchet ring 51 can be driven to rotate in the same direction through the pawl 48 and the lower compression spring 49, thereby causing the counting device to operate and count. However, when the transmission shaft 41 rotates counterclockwise (viewed from a top view), the ratchet ring 51 cannot be driven to rotate through the pawl 48 and the lower compression spring 49, and the counting device does not operate and count.

[0042] The working principle of the counting device is mechanical counting. The counting device includes a gear transmission 53, a No. 1 counting disk 54, a No. 2 support shaft 55, a No. 3 support shaft 56, a No. 4 support shaft 57, a No. 5 support shaft 58, an active incomplete gear 59, a driven incomplete gear 60, a driving gear 61, a driven gear 62, an arc groove 63, a No. 2 counting disk 64, a No. 3 counting disk 65, and a digital mark 66. The box body 24 is fixed with a gear transmission 53, and the No. 1 support shaft 52 and the gear transmission 53 are connected. The input shaft is coaxially fixed, the output shaft of the gear transmission 53 is coaxially fixed with a No. 1 counting disk 54, the bottom of the housing 32 is rotatably connected with a vertical No. 2 support shaft 55, a No. 3 support shaft 56, a No. 4 support shaft 57 and a No. 5 support shaft 58, the output shaft of the gear transmission 53 and the No. 3 support shaft 56 are coaxially fixed with a driving incomplete gear 59, the No. 2 support shaft 55 and the No. 4 support shaft 57 are coaxially fixed with a driven incomplete gear 60 and a driving gear 61, the No. 3 support shaft 56 A driven gear 62 is coaxially fixed to the No. 5 support shaft 58, and the driven incomplete gear 60 is provided with a plurality of arc grooves 63 matching the outer circumferential wall of the driving incomplete gear 59 at equal angles on the circumference. The output shaft of the gear transmission 53 and the No. 2 support shaft 55 are intermittently driven by the intermittent meshing of the driving incomplete gear 59 and the driven incomplete gear 60. The No. 2 support shaft 55 and the No. 3 support shaft 56 are connected by the meshing of the driving gear 61 and the driven gear 62. The No. 3 support shaft A No. 2 counting disk 64 is coaxially fixed to 56, the No. 3 supporting shaft 56 and the No. 4 supporting shaft 57 realize intermittent transmission through the intermittent meshing of the active incomplete gear 59 and the driven incomplete gear 60, the No. 4 supporting shaft 57 and the No. 5 supporting shaft 58 realize transmission connection through the meshing of the active gear 61 and the driven gear 62, the No. 3 counting disk 65 is coaxially fixed to the No. 5 supporting shaft 58, and the outer walls of the No. 1 counting disk 54, the No. 2 counting disk 64 and the No. 3 counting disk 65 are respectively provided with digital markings 66 at equal angles along the circumference.

[0043] Furthermore, each time the No. 1 support shaft 52 rotates once, the speed change of the gear transmission 53 can make the No. 1 counting disk 54 rotate once, that is, the position of the digital mark 66 on the No. 1 counting disk 54 is replaced circumferentially, that is, counting is achieved, and under the engagement of the active incomplete gear 59, the driven incomplete gear 60, the active gear 61 and the driven gear 62, the No. 1 counting disk 54 can rotate a full circle and the No. 2 counting disk 64 can rotate once, that is, the position of the digital mark 66 on the No. 2 counting disk 64 is replaced circumferentially, that is, advanced counting is achieved, similarly, the No. 2 counting disk 64 rotates a full circle and the No. 3 counting disk 65 rotates once, that is, the position of the digital mark 66 on the No. 3 counting disk 65 is replaced circumferentially, that is, advanced counting is achieved, thereby increasing the upper limit of counting.

[0044] The outer walls of the No. 1 counting disk 54, the No. 2 counting disk 64 and the No. 3 counting disk 65 are respectively provided with ten digital markings 66 of "0, 1, 2, 3, 4, 5, 6, 7, 8, 9" at equal angles along the circumference, and the shell 32 is provided with a transparent observation window 67, and the observation window 67 corresponds to the No. 1 counting disk 54, the No. 2 counting disk 64 and the No. 3 counting disk 65 front and back, and the digital markings 66 of the No. 1 counting disk 54, the No. 2 counting disk 64 and the No. 3 counting disk 65 can be observed through the box cover 25 and the observation window 67, the transmission ratio between the output shaft of the gear transmission box 53 and the No. 3 support shaft 56 is ten to one, and the transmission ratio between the No. 3 support shaft 56 and the No. 5 support shaft 58 is ten to one.

[0045] Furthermore, by setting the ten numbers "0, 1, 2, 3, 4, 5, 6, 7, 8, 9" and determining that the transmission ratio between the output shaft of the gear transmission 53 and the third support shaft 56 and the transmission ratio between the third support shaft 56 and the fifth support shaft 58 are both ten to one, a decimal counting method can be implemented, and three-digit counting is realized, which is in line with people's daily counting habits. The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A high-safety electric energy measuring device, comprising a meter box (1), wherein an electric energy meter is installed in the meter box (1), wherein the electric energy meter comprises a meter body (3), a wiring terminal, and an auxiliary support tube (5), wherein the inlet end and the outlet end of the meter body (3) are electrically connected to the wiring terminal respectively, and the inlet end and the outlet end are fixedly connected to the auxiliary support tube (5), wherein the auxiliary support tube (5) corresponds to the wiring terminal, wherein brackets (6) are fixed on the upper and lower sides of the meter body (3) inside the meter box (1), and each bracket (6) is fixed with a through main support tube (7), wherein the device is characterized in that: A connected and flexible threading tube (8) that bends reciprocatingly up and down is installed between each of the main support tubes (7) and each of the auxiliary support tubes (5). Flame-retardant sponge blocks (9) are respectively inserted into the upper and lower parts of the threading tube (8). The gap between the threading tube (8) and the two flame-retardant sponge blocks (9) is filled with gravel. The outer wall of the meter box (1) is also fixedly connected with an inlet pipe (10) and an outlet pipe (11).

2. A high-safety electric energy measuring device according to claim 1, characterized in that: The threading tube (8) is a heat shrink tube, and the heat shrink tube is plugged onto the outside of the main support tube (7) and the auxiliary support tube (5).

3. A high-safety electric energy measuring device according to claim 1, characterized in that: The inlet pipe (10) is fixedly connected to the left side of the meter box (1), and the left side is bent downward. The outlet pipe (11) is fixedly connected to the bottom of the meter box (1). Flame-retardant sponge blocks (9) are also inserted into the inlet pipe (10) and the outlet pipe (11), respectively.

4. A high-safety electric energy measuring device according to any one of claims 1 to 3, characterized in that: The terminal block comprises a stator (13), a slot (14), a constant pressure wire slot (15), a mover (16), a tightening bolt (17), a pin (18), and a dynamic pressure wire slot (19). The stator (13) is electrically connected to the electric energy measurement circuit inside the meter body (3). The left middle part and the right middle part of the stator (13) are respectively provided with a slot (14) that penetrates front and back. The front end of the stator (13) is penetrated up and down by a constant pressure wire slot (15) that gathers backward. The mover (16) is connected to the meter body (3) in a forward and backward sliding manner. The mover (16) is located in front of the stator (13), and the front part is connected to a tightening bolt (17) for rotation in the front-back direction. The left middle part and the right middle part of the mover (16) are respectively provided with pins (18) matching the slot (14), and the rear end is penetrated by a dynamic pressure line groove (19) that converges forward. The constant pressure line groove (15) corresponds to the dynamic pressure line groove (19) in front and back. The tightening bolt (17) is threadedly connected to the meter body (3), and the auxiliary support tube (5) corresponds to the constant pressure line groove (15) and the dynamic pressure line groove (19) in the upper and lower directions.

5. A high-safety electric energy measuring device according to claim 4, characterized in that: The upper and lower parts of the meter body (3) are each provided with a cover plate (20), the cover plate (20) and the right part of the meter body (3) are plugged in left and right, the left part of the cover plate (20) is plugged in front and back with a fastening bolt (21), the fastening bolt (21) is threadedly connected to the meter body (3), the rear end of the cover plate (20) is concave, the front part of the concave part of the rear end of the cover plate (20) is filled with a flame retardant sponge board (22), the rear end of the flame retardant sponge board (22) is fixed with a soft insulating rubber pad (23), the insulating rubber pad (23) can move forward and backward along the penetration part of the cover plate (20), and the rear end of the insulating rubber pad (23) can fit in contact with the front end of the tightening bolt (17).

6. A high-safety electric energy measuring device according to claim 5, characterized in that: The meter box (1) comprises a box body (24) and a box cover (25), the front of the box body (24) penetrates forward, the left part of the box body (24) is hinged with the box cover (25) at the front and rear, the box cover (25) can cover the front of the box body (24), and is made of a transparent material, the right part of the box body (24) is fixed with a lock (26), the right part of the box cover (25) is fixed with a lock buckle (27), the lock buckle (27) can be locked with the lock buckle (26) to realize the box cover (25) locking the box body (24) The cover is stably closed, and a mounting seat (28) is fixed to the left and right parts of the box body (24), and a mounting hole (29) is passed through the front and rear of the mounting seat (28). A counting device and a transmission mechanism are also installed in the box body (24), and the transmission mechanism is connected to the box cover (25), the cover plate (20) and the counting device. The working principle of the counting device is mechanical counting or electronic counting. When the working principle of the counting device is electronic counting, a radio transmission module is equipped to transmit counting data to the data terminal in real time.

7. A high-safety electric energy measuring device according to claim 6, characterized in that: The transmission mechanism comprises a housing (32), a left guide groove (33), a right guide groove (34), a right light rod (35), a left light rod (36), a left rack (37), a right rack (38), a left compression spring (39), a right compression spring (40), a transmission shaft (41), a left gear (42), a right gear (43), and a one-way transmission mechanism. The right portion of the box (24) and the meter body (3) are fixed with the housing (32). The right portion of the meter body (3) and the housing (32) are penetrated by the left guide groove (33). The right portion of the housing (32) is penetrated by the right guide groove (34) at the front and rear ends. The cover plate (20) is plugged into the left guide groove (33) in the left and right directions. The right part of the box body (24) is fixed with two horizontal right light rods (35) along the left and right directions, and the right part is fixed with a horizontal left light rod (36) along the front and back directions. The left guide groove (33) and the right light rod (35) are connected to a left rack (37) by sliding left and right. The right guide groove (34) and the left light rod (36) are connected to a right rack (38) by sliding front and back. The left rack (37) and the box body (24) are fixed with a left compression spring (39). The right rack (38) and the box body (24) are fixed with a right compression spring (40). The left rack (37) has a tendency to move leftward under the elastic repulsive force of the left compression spring (39) and can conflict with the right end of the cover (20). The right rack (38) has a tendency to move forward under the elastic repulsive force of the right compression spring (40). The housing (32) is connected to a vertical transmission shaft (41) which is rotated in the transmission shaft (41). The left gear (42), the right gear (43) and the left gear (42) are coaxially fixed in sequence from top to bottom. When the teeth of the left rack (37) move left and right to a position close to the left gear (42), they can mesh with the left gear (42). When the teeth move to the left or right side of the left gear (42), they are disengaged from the left gear (42); when the teeth of the right rack (38) move forward and backward to a position close to the right gear (43), they can be engaged with the right gear (43); and when the teeth move to the front or rear side of the right gear (43), they are disengaged from the right gear (43); the box cover (25) can press the right rack (38) backward; a one-way transmission mechanism is installed at the bottom of the transmission shaft (41); the output end of the one-way transmission mechanism is transmission-connected to the counting device, and the input end of the one-way transmission mechanism is transmission-connected to the bottom of the transmission shaft (41).

8. A high-safety electric energy measuring device according to claim 7, characterized in that: The one-way transmission mechanism comprises a transmission disc (45), a main support arm (46), a secondary support arm (47), a pawl (48), a lower compression spring (49), a transmission housing (50), a ratchet ring (51), and a No. 1 support shaft (52). The transmission disc (45) is coaxially fixed to the bottom of the transmission shaft (41). Two main support arms (46) and secondary support arms (47) are fixed on the circumference of the transmission disc (45) at equal angles. The two main support arms (46) are respectively horizontally hinged with a pawl (48). A lower compression spring (49) is fixed between the two pawls (48) and the two secondary support arms (47). The pawl (48) has a tendency to expand and swing outward under the elastic repulsive force of the lower compression spring (49), and the bottom of the transmission shaft (41) is coaxially connected to a disc-shaped transmission housing (50), and a ratchet ring (51) is coaxially fixed to the inner wall of the transmission housing (50). The pawl (48) is meshed with the ratchet ring (51) under the elastic repulsive force of the lower compression spring (49) to achieve one-way transmission. A support shaft (52) is coaxially fixed to the bottom end of the transmission disk (45), and the support shaft (52) is transmission-connected to the counting device.

9. A high-safety electric energy measuring device according to claim 8, characterized in that: The working principle of the counting device is mechanical counting. The counting device includes a gear transmission (53), a No. 1 counting disk (54), a No. 2 support shaft (55), a No. 3 support shaft (56), a No. 4 support shaft (57), a No. 5 support shaft (58), an active incomplete gear (59), a driven incomplete gear (60), a driving gear (61), a driven gear (62), an arc groove (63), a No. 2 counting disk (64), a No. 3 counting disk (65), and a digital mark (66). The box (24) is fixed with the gear transmission (53), the No. 1 support shaft (52) and the gear transmission The input shaft of the gear transmission (53) is fixed on the same axis, the output shaft of the gear transmission (53) is fixed on the same axis with a No. 1 counting disk (54), the bottom of the housing (32) is rotatably connected with a No. 2 supporting shaft (55), a No. 3 supporting shaft (56), a No. 4 supporting shaft (57) and a No. 5 supporting shaft (58), the output shaft of the gear transmission (53) and the No. 3 supporting shaft (56) are respectively fixed on the same axis with a driving incomplete gear (59), the No. 2 supporting shaft (55) and the No. 4 supporting shaft (57) are respectively fixed on the same axis with a driven incomplete gear (60) and a driving gear (61), the No. 3 supporting shaft (56) and the fifth support shaft (58) are respectively coaxially fixed with a driven gear (62), and the driven incomplete gear (60) is provided with a plurality of arc grooves (63) matching the outer circumferential wall of the active incomplete gear (59) at equal angles on the circumference. The output shaft of the gear transmission (53) and the second support shaft (55) are intermittently meshed with the active incomplete gear (59) and the driven incomplete gear (60) to achieve intermittent transmission. The second support shaft (55) and the third support shaft (56) are connected to each other through the meshing of the active gear (61) and the driven gear (62). The third support shaft ( 56) is coaxially fixed with a No. 2 counting disk (64), the No. 3 support shaft (56) and the No. 4 support shaft (57) realize intermittent transmission through the intermittent meshing of the active incomplete gear (59) and the driven incomplete gear (60), the No. 4 support shaft (57) and the No. 5 support shaft (58) realize transmission connection through the meshing of the active gear (61) and the driven gear (62), the No. 3 counting disk (65) is coaxially fixed with the No. 5 support shaft (58), and the outer walls of the No. 1 counting disk (54), the No. 2 counting disk (64) and the No. 3 counting disk (65) are respectively provided with digital markings (66) at equal angles along the circumference.

10. The high-safety electric energy measuring device according to claim 9, characterized in that: The outer walls of the No. 1 counting disc (54), the No. 2 counting disc (64) and the No. 3 counting disc (65) are respectively provided with ten numerical markings (66) of "0, 1, 2, 3, 4, 5, 6, 7, 8, 9" at equal angles along the circumference. The housing (32) is provided with a transparent observation window (67). The observation window (67) corresponds to the No. 1 counting disc (54), the No. 2 counting disc (64) and the No. 3 counting disc (65) in front and back. The numerical markings (66) of the No. 1 counting disc (54), the No. 2 counting disc (64) and the No. 3 counting disc (65) can be observed through the box cover (25) and the observation window (67). The transmission ratio between the output shaft of the gear transmission (53) and the No. 3 support shaft (56) is ten to one, and the transmission ratio between the No. 3 support shaft (56) and the No. 5 support shaft (58) is ten to one.

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