A meter box that facilitates the installation of electricity meters

Abstract

An electric meter box for easy installation of an electric meter includes a box body, a box door, a connecting strip, and an electric meter. A locking unit that can be bent inwards under pressure is provided on the rear end face of the electric meter. The connecting strip is located inside the box and has several installation positions distributed along its length. Each installation position has a locking node that engages with the locking unit. After entering the locking node, the locking unit is allowed to be inserted downwards to engage with the connecting strip, and the locking node maintains the engagement between the locking unit and the connecting strip. The beneficial effect of this invention is that the electric meter can be assembled to the connecting strip by being inserted downwards, which simplifies the assembly and connection method. The downward insertion method also utilizes the principle of downward inertia to stably suspend the electric meter on the connecting strip, and prevents separation after insertion.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a meter box that facilitates the installation of electricity meters. Background Technology

[0002] Electricity meter boxes are widely used in public power grids as cable branch boxes, low-voltage distribution boxes, water pump control boxes, communication device cabinets, street light and traffic light control boxes, multi-functional metering boxes, integrated distribution boxes, capacitor compensation boxes, terminal boxes, wall-mounted junction boxes, metering boxes, etc. Electricity meter boxes are a commonly used type of electrical instrument equipment.

[0003] Publication No. CN220122331U discloses a meter box for easy installation of an electricity meter, comprising: an electricity meter body, a meter box body, a frame, and an adjusting device. The adjusting device is installed on the electricity meter body, and the frame is installed inside the meter box body. Multiple sets of limiting members are slidably arranged on the side of the electricity meter, and multiple sets of limiting grooves adapted to the limiting members are provided on the outside of the frame. The adjusting device is adapted to connect and cooperate with the limiting members. When installing the electricity meter body, the adjusting device is adapted to drive the limiting members to move synchronously and insert into the limiting grooves, thereby enabling the installation of the electricity meter body. When disassembling the electricity meter body, the adjusting device is adapted to drive the limiting members to move synchronously and separate from the limiting grooves, thereby enabling the disassembly of the electricity meter body. This type of meter box can drive multiple limiting components to move synchronously through an adjustment device, allowing the limiting components to be inserted into the limiting slots simultaneously, thus enabling the installation of the electricity meter body. When it is necessary to disassemble the electricity meter body, the adjustment device drives multiple limiting components to move synchronously and separate from the limiting slots, thus completing the disassembly of the electricity meter body. It is simple and convenient, greatly improving the assembly efficiency of the electricity meter. However, it has a drawback: it requires rotating a rotating rod. The rotation of the rotating rod not only requires the use of auxiliary tools (such as the wrench mentioned in the prior art), but the travel of the limiting components is related to the number of rotations of the rotating rod. In addition, the electricity meter is set close to the inner wall of the meter box body, so there is not enough open space to provide auxiliary tools. As a result, the rotating rod cannot maintain a full rotation continuously, but can only rotate half a turn or less, making the operation more cumbersome. Utility Model Content

[0004] This invention aims to overcome the shortcomings of the prior art by providing a meter box that facilitates the installation of electricity meters to solve the aforementioned problems.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This meter box, which is easy to install, includes a box body, a box door, a connecting strip, and an electricity meter. A locking unit that can be bent inward under pressure is provided on the rear end face of the electricity meter. The connecting strip is located in the box body and has several installation positions distributed along its length. Each installation position is provided with a locking node that locks with the locking unit. After the locking unit enters the locking node, it is allowed to be inserted downward and engage with the connecting strip. The locking node maintains the engagement between the locking unit and the connecting strip.

[0006] Further improvements include setting the locking unit as a sheet-like component, which is bent to form first bent portions on the left and right sides. The end face of the first bent portion is provided with a first insert that protrudes outward and enters into the locking node. The lower end of the first insert is provided with a first socket that engages with the connecting strip.

[0007] Further improvements include two symmetrically distributed first insertion holes on both sides. A protrusion is provided at the lower center of the first insertion hole, which divides the inner cavity of the first insertion hole into a first guide channel, a second guide channel, and a constraint channel. The second guide channel is located on one side of the protrusion and its channel width is shortened. After the first insertion part enters the first insertion hole, it passes through the first guide channel and the second guide channel to reach the constraint channel, and at the same time, it is inserted and locked with the connecting strip.

[0008] Further improvements include a protrusion with a guide slope that gradually widens from top to bottom, and the width of the second guide channel gradually narrows along the guide slope.

[0009] Further improvements include a second socket located above the first socket and between the two first sockets. The locking unit is bent to form a second bent portion above the first bent portion. A second insertion portion protrudes outward and enters the second socket on the end face of the second bent portion. A second insertion port that engages with the connecting strip is provided at the lower end of the second insertion portion.

[0010] Further improvements include using the inner cavity of the second insertion hole as a third guide channel. The left and right sides of the third guide channel are both stepped, so that the channel width of the third guide channel gradually decreases through the stepped configuration, and the minimum channel width is consistent with the lateral width of the second insertion part.

[0011] To further improve the system, a pressing unit is provided between the electricity meter and the locking unit, which allows the locking unit to bend inward by manual assistance.

[0012] Further improvements include a pressing unit comprising an abutment block and two pressing rods. The abutment block is disposed on the locking unit and located between the two first bending portions. The two pressing rods are symmetrically distributed vertically, and each pressing rod moves simultaneously on the abutment block and the corresponding first bending portion, thereby driving the first bending portion to bend inward through movement.

[0013] Further improvements include: the pressing rod has two first abutting pieces with a preset distance on the part that moves on the abutting block, and a second abutting piece on the part that is outside the locking unit. One of the first abutting pieces is located on one side of the abutting block and serves as an anti-disengagement structure to prevent the pressing rod from disengaging from the abutting block. The other first abutting piece is located on the other side of the abutting block and is spaced at a preset distance so that it also has a preset distance from the abutting block. A spring is fitted on the pressing rod at the preset distance, with one end of the spring abutting against the first abutting piece and the other end abutting against the abutting block. The second abutting piece always abuts against the first bent part.

[0014] To further improve the system, at least one support block is provided on the rear end face of the electricity meter that is movably connected to the pressing rod.

[0015] The beneficial effects of this utility model are:

[0016] The energy meter of this utility model allows for a downward insertion method when assembled to the connecting bar, which simplifies the assembly and connection method. The downward insertion method also combines the principle of downward inertia to make the energy meter stably suspended on the connecting bar, and can prevent the two from separating after insertion. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the present invention, in which the box door is hidden;

[0019] Figure 3 This utility model Figure 2 A magnified view of part A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the back of the meter box of this utility model;

[0021] Figure 5 This utility model Figure 4 A magnified view of part B in the middle section;

[0022] Figure 6 This is a partial cross-sectional view of the side of the present invention, which conceals the cabinet door.

[0023] Figure 7 This utility model Figure 6A magnified view of part C in the middle. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Referring to the attached diagram: This meter box, which facilitates the installation of electricity meters, includes a box body 1, a box door 2, a connecting strip 3, and an electricity meter 4. The rear end face of the electricity meter 4 is provided with a locking unit 5 that can be bent inward under pressure. The connecting strip 3 is located inside the box body 1 and has several installation positions distributed along its length. Each installation position is provided with a locking node 6 that locks and engages with the locking unit 5. After entering the locking node 6, the locking unit 5 is allowed to be inserted downwards and engage with the connecting strip 3, and the locking node 6 maintains the engagement between the locking unit 5 and the connecting strip 3. The principle of this utility model is that the connecting strip 3 is used to install the energy meter 4. It is set in the housing 1 by means of gaskets and bolts. The energy meter 4 and the connecting strip 4 are quickly assembled by the locking unit 5 and the locking node 6. During assembly, after the locking unit 5 enters the locking node 6, it is allowed to be inserted downwards and engage with the connecting strip. This simplifies the assembly connection method. Moreover, the downward insertion method can combine the principle of inertia to make the energy meter 4 stably suspended on the connecting strip 3. The locking node 6 also plays a retaining role, that is, by preventing the locking unit 5 from moving in the opposite direction of the assembly direction, the retaining purpose is achieved, thereby further increasing the assembly stability of the energy meter 4 on the connecting strip 3.

[0026] The locking unit 5 is configured as a sheet-like component. The sheet-like component is bent to form a first bent portion 51 located on the left and right sides. A first insertion portion 511 protrudes outward and enters into the locking node 6 on the end face of the first bent portion 51. A first insertion port 5111 is provided at the lower end of the first insertion portion 511 for insertion and cooperation with the connecting strip 3. The sheet-like component can increase the degree of bending at its bend when subjected to pressure, thereby generating elasticity that allows the first bent portion 51 to return to its original position after bending. The first insertion portion 511 is used to insert and cooperate with the connecting strip 3, so that the energy meter 4 is stably suspended on the connecting strip 3.

[0027] The locking node 6 includes two symmetrically distributed first insertion holes 61. A protrusion 614 is located slightly below the center of each first insertion hole 61, dividing the inner cavity of the first insertion hole 61 into a first guide channel 611, a second guide channel 612, and a constraint channel 613. The second guide channel 612 is located on one side of the protrusion 614 and its width is shortened. After the first insertion part 511 enters the first insertion hole 61, it passes through the first guide channel 611 and the second guide channel 612 to reach the constraint channel 613. Upon reaching the constraint channel 613, it simultaneously engages and locks with the connecting strip 3. The first insertion hole 61 mates with the first insertion part 511. The first guide channel 611, the second guide channel 612, and the constraint channel 613 are formed within the first insertion hole 61 through the protrusion 614. Firstly, the widths of the first guide channel 611 and the constraint channel 613 are the same, while the width of the second guide channel... The width of the channel 612 is smaller than the width of the other two channels. The width of the first insertion part 511 is also smaller than the width of the second guide channel 612. When the first insertion part 511 enters the first socket 61, its outer side is in contact with the outer side of the first socket 61 (the surface used to set the protrusion 614 is the outer side of the first socket 61). When it needs to enter the second guide channel 612, the first bending part 51 is squeezed and bends inward to change its position. After passing through and reaching the constraint channel 613, the elasticity of the first bending part 51 can be used to reset itself and restore the outer side of the first insertion part 511 to be in contact with the outer side of the first socket 61. In this way, the first insertion part 511 is also placed below the protrusion 614, thereby preventing the first insertion part 511 from moving in the opposite direction of the assembly direction and increasing the assembly stability of the energy meter 4 on the connecting strip 3.

[0028] The protrusion 614 has a guide slope 6141 that gradually widens from top to bottom. The channel width of the second guide channel 612 gradually narrows with the guide slope 6141. The guide slope 6141 has a guiding function and also has the effect of assisting the first bending part 51 to bend inward. That is, it gradually bends inward as the width increases. In this way, the user does not need to apply additional force during the movement and there will be no assembly interference.

[0029] The locking node 6 also includes a second socket 62 located above the first socket 61 and between the two first sockets 61. The locking unit 5 is bent to form a second bent portion 52 located above the first bent portion 51. A second insertion portion 521 protruding outward and entering the second socket 62 is provided on the end face of the second bent portion 52. A second insertion port 521 that engages with the connecting strip 3 is provided at the lower end of the second insertion portion 521. The second socket 62 and the first socket 61 are arranged vertically, so that the energy meter 4 has both a lower support and an upper support, thereby increasing the stability of the energy meter 4 on the connecting strip 3. Its assembly method is the same as that of the first insertion portion 61. The assembly method is the same, which is also achieved by downward straight insertion. At the same time, the second bending part 52 is located above the first bending part 51, that is, the upper end face of the first bending part 51 is in contact with the lower end face of the second bending part 52. This can prevent the second bending part 52 from bending. Because the structure of the second insertion hole 62 is different from that of the first insertion hole 61, that is, there is no protrusion 614, so the second bending part 52 does not need to be bent. However, since the second bending part 52 and the first bending part 51 are a whole U-shaped configuration before processing, it is necessary to separate the second bending part 52 and the first bending part 51 by cutting, that is, not to prevent the first bending part 51 from bending.

[0030] The inner cavity of the second socket 62 is used as the third guide channel 621. The left and right sides of the third guide channel 621 are stepped, so that the channel width of the third guide channel 621 gradually decreases through the stepped configuration, and the minimum channel width is consistent with the lateral width of the second plug 521. This setting makes it convenient for the second plug 521 to enter the third guide channel 621 of the second socket 62, and also makes it convenient for the second plug 521 to smoothly enter the minimum channel width of the third guide channel 621 without movement interference.

[0031] A pressing unit 7 is provided between the electricity meter 4 and the locking unit 5, which causes the locking unit 5 to bend inward by manual assistance. The pressing unit 7 is provided because when the locking unit 5 is set in the connecting strip 3, the operating space for the user is relatively small, so it is difficult to operate directly. Therefore, the pressing unit 7 can avoid the user operating in a small space, and can be operated in the space between two adjacent electricity meters 4, and also provides the user with a structure that is convenient to apply force.

[0032] The pressing unit 7 includes an abutment block 71 and two pressing rods 72. The abutment block 71 is disposed on the locking unit 5 and located between the two first bending portions 51. The two pressing rods 72 are symmetrically distributed vertically, and each pressing rod 72 moves simultaneously on the abutment block 71 and the corresponding first bending portion 51, so as to drive the first bending portion 51 to bend inward by moving. The abutment block 71 provides support for the pressing rod 72, so that the pressing rod 72 can be kept in the locking unit 5. Moreover, the pressing ends of the two pressing rods 72 are located on the left and right sides respectively, and also act on the first bending portions 51 at different positions. In this way, the user can apply force simultaneously to make the two first bending portions 51 bend inward at the same time, and unlock the locking positions at both ends.

[0033] The pressing rod 72 has two first abutment pieces 721 with a preset distance on the part of it that moves on the abutment block 71, and a second abutment piece 722 on the part of it that is outside the locking unit 5. One of the first abutment pieces 721 is located on one side of the abutment block 71 and serves as an anti-disengagement structure to prevent the pressing rod 72 from disengaging from the abutment block 71. The other first abutment piece 721 is located on the other side of the abutment block 71 and is also spaced at a preset distance from the abutment block 71. A spring 8 is fitted on the pressing rod 72 at the preset distance. One end of the spring 8 abuts against the first abutment piece 721 and the other end abuts against the abutment block 71. The second abutment piece 722 always abuts against the first bent portion 51. One of the first abutment pieces 721 is in contact with the first bent portion 51 when the locking unit 51 is not unlocked. When in the state, it abuts against the abutment block 71, mainly to prevent disengagement. Another first abutment piece 721 is provided with a spring 8 between it and the abutment block 71. In this way, after the pressing rod 72 is operated, the elasticity of the spring 8 can be used to achieve reset. After the pressing rod 72 moves, the second abutment piece 722 converts the movement of the pressing rod 72 into a force acting on the first bending part 51, causing the first bending part 51 to bend inward. When unlocking, the first insertion part 511 moves laterally in the constraint channel 613 and moves to a position on the same path as the second guide channel 612. Then it moves upward into the second guide channel 612. After the first insertion part 511 enters the second guide channel 612, the user no longer needs to apply force, only an upward force is applied to the energy meter 4.

[0034] At least one support block 9 is provided on the rear end face of the electricity meter 4, which is movably connected to the push rod 72. The support block 9 is used to support the push rod 72, that is, to use the support to keep the push rod 72 in a straight horizontal position, so as not to interfere with the movement of the push rod 72.

[0035] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A meter box for easy installation of an electricity meter, comprising a box body (1), a box door (2), a connecting strip (3), and an electricity meter (4), characterized in that: The rear end face of the electricity meter (4) is provided with a locking unit (5) that can be bent inward under pressure. The connecting strip (3) is located inside the box (1) and has several installation positions distributed along its length. Each installation position is provided with a locking node (6) that locks and engages with the locking unit (5). After the locking unit (5) enters the locking node (6), it is allowed to be inserted downwards and engage with the connecting strip (3), and the locking node (6) maintains the engagement between the locking unit (5) and the connecting strip (3).

2. The meter box for easy installation of electricity meters according to claim 1, characterized in that: The locking unit (5) is configured as a sheet-like component. The sheet-like component is bent to form a first bent portion (51) located on the left and right sides. A first insertion portion (511) protrudes outward and enters into the locking node (6) on the end face of the first bent portion (51). A first socket (5111) is provided at the lower end of the first insertion portion (511) to be inserted and cooperate with the connecting strip (3).

3. The meter box for easy installation of electricity meters according to claim 2, characterized in that: The locking node (6) includes two first insertion holes (61) symmetrically distributed on both sides. A protrusion (614) is provided at the lower center of the first insertion hole (61) to divide the inner cavity of the first insertion hole (61) into a first guide channel (611), a second guide channel (612), and a constraint channel (613). The second guide channel (612) is located on one side of the protrusion (614) and its channel width is shortened. After the first insertion part (511) enters the first insertion hole (61), it passes through the first guide channel (611) and the second guide channel (612) to reach the constraint channel (613), and at the same time as reaching the constraint channel (613), it is inserted and locked with the connecting strip (3).

4. The meter box for easy installation of electricity meters according to claim 3, characterized in that: The protrusion (614) has a guide slope (6141) that gradually widens from top to bottom, and the channel width of the second guide channel (612) gradually narrows with the guide slope (6141).

5. The meter box for easy installation of electricity meters according to claim 3, characterized in that: The locking node (6) also includes a second socket (62) located above the first socket (61) and between the two first sockets (61). The locking unit (5) is bent to form a second bent portion (52) located above the first bent portion (51). A second insertion portion (521) protrudes outward and enters the second socket (62) on the end face of the second bent portion (52). A second insertion port (5211) is provided at the lower end of the second insertion portion (521) to be inserted and cooperated with the connecting strip (3).

6. The meter box for easy installation of electricity meters according to claim 5, characterized in that: The inner cavity of the second insertion hole (62) is used as the third guide channel (621). The left and right sides of the third guide channel (621) are stepped, so that the channel width of the third guide channel (621) gradually decreases through the stepped configuration, and the minimum channel width is consistent with the lateral width of the second insertion part (521).

7. The meter box for easy installation of electricity meters according to claim 2, characterized in that: The electricity meter (4) and the locking unit (5) are provided with a pressing unit (7) that allows the locking unit (5) to bend inward by manual assistance.

8. The meter box for easy installation of electricity meters according to claim 7, characterized in that: The pressing unit (7) includes an abutment block (71) and two pressing rods (72). The abutment block (71) is disposed on the locking unit (5) and located between the two first bending portions (51). The two pressing rods (72) are symmetrically distributed up and down, and each pressing rod (72) moves simultaneously on the abutment block (71) and the corresponding first bending portion (51) to drive the first bending portion (51) to bend inward by moving.

9. The meter box for easy installation of an electricity meter according to claim 8, characterized in that: The pressing rod (72) has two first abutting pieces (721) with a preset distance on the part of it that moves on the abutting block (71), and a second abutting piece (722) on the part of it that is outside the locking unit (5). One of the first abutting pieces (721) is located on one side of the abutting block (71) and serves as an anti-disengagement structure to prevent the pressing rod (72) from disengaging from the abutting block (71). The other first abutting piece (721) is located on the other side of the abutting block (71) and is spaced at a preset distance so that it also has a preset distance from the abutting block (71). A spring (8) is sleeved on the pressing rod (72) at the preset distance. One end of the spring (8) abuts against the first abutting piece (721) and the other end abuts against the abutting block (71). The second abutting piece (722) always abuts against the first bent part (51).

10. The meter box for easy installation of an electricity meter according to claim 9, characterized in that: At least one support block (9) is provided on the rear end face of the electricity meter (4) and is movably connected to the pressing rod (72).

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