A hook mounting structure of an electric energy meter
The cooperative structure of locking block, locking hole and push head solves the problem of cumbersome operation of electricity meter hook, realizes continuous adjustment and automatic locking of hook, and improves the convenience and reliability of installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WANKANG ELECTRICAL TECH CO LTD
- Filing Date
- 2026-06-05
- Publication Date
- 2026-07-14
AI Technical Summary
The existing hook structure of electricity meters is cumbersome to operate, making it difficult to adjust the height with one hand without tools, and it is also inconvenient to operate in narrow spaces.
The structure employs a combination of locking block, locking hole, and push head, allowing the locking block to slide and retract on the guide slope, thus achieving continuous sliding adjustment and automatic locking of the hook. Combined with the anti-disengagement constraint of T-slot and T-slider, it ensures continuous sliding and locking of the hook between multiple height positions.
The operation convenience and structural reliability of the electricity meter hook have been improved, enabling continuous adjustment of the hook height without tools, thus enhancing the adaptability of the installation and the adjustment efficiency.
Smart Images
Figure CN224500746U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electricity meter technology and relates to a hook installation structure for an electricity meter. Background Technology
[0002] During installation, electricity meters are typically wall-mounted by hooks on their backs that attach to fixing screws inside the meter box. The hooks, as the connecting component between the electricity meter and the meter box, directly affect the ease and reliability of installation.
[0003] Existing electricity meter hooks are mostly one-piece fixed structures with non-adjustable installation height. Some adjustable designs require manually pressing an unlocking component to adjust the height, which is cumbersome and difficult to operate with one hand without tools. For example, some existing technologies use a locking structure between limit blocks and limit slots. Adjustment requires first pressing each limit block to disengage it, then sliding the hook to the target position and re-locking it. This process is time-consuming and laborious, especially inconvenient in the confined space of the meter box. Therefore, there is an urgent need for an electricity meter hook installation structure that is easy to operate, allows for continuous sliding adjustment without tools, and provides reliable locking. Utility Model Content
[0004] This invention utilizes a locking block, a locking hole, and a pushing head that work together to allow the locking block to slide and retract along a guide slope before and after engaging with the locking hole, thus achieving continuous sliding adjustment and automatic locking of the hook and solving the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: a hook installation structure for an electricity meter, including an electricity meter housing and an independent hook, wherein the back of the electricity meter housing is provided with a groove, the independent hook is slidably disposed in the groove and has a hanging hole, and further includes: Locking blocks are spaced apart in the groove along the sliding direction of the independent hook. Each locking block has a guide slope on the side facing the sliding direction of the independent hook, and each locking block is configured to elastically extend and retract in a direction perpendicular to the bottom of the groove. Locking holes are spaced apart on the independent hooks along the sliding direction and correspond one-to-one with each of the locking blocks. The upper edge of each locking hole is provided with a release slope that is adapted to the guide slope. The push head is located at the bottom of the independent hook, and the side of the push head facing the groove has a push slope that is adapted to the guide slope.
[0006] The present invention is further configured such that the two side walls of the groove and the two side edges of the independent hook are slidably connected by a T-shaped groove and a T-shaped slider.
[0007] The present invention is further configured such that each of the locking blocks has a locking right angle surface on the side opposite to the sliding direction, and the lower edge of each locking hole has a right angle side that abuts against the locking right angle surface.
[0008] The present invention is further configured such that the locking block is connected to the bottom of the groove through an elastic reset member, wherein the elastic reset member is a compression spring or a spring sheet.
[0009] The present invention is further provided that the bottom of the groove is provided with a clearance groove for accommodating the propulsion head.
[0010] The present invention is further configured such that the inclination angle of the tripping inclined surface is consistent with the inclination angle of the guide inclined surface.
[0011] The present invention is further configured such that the propulsion head and the independent hook are integrally formed.
[0012] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. By advancing the head and engaging the locking hole's release ramps with the locking block's guide ramps, the locking block automatically compresses and resets during hook sliding, allowing for continuous adjustment without manual unlocking, thus improving operational convenience.
[0013] 2. By rigidly abutting the right-angled surface of the locking block with the right-angled edge of the locking hole, and with the anti-disengagement constraint of the T-slot and T-slider, the hook cannot slide backward or disengage forward after being locked, thus improving the reliability and safety of the structure.
[0014] 3. By setting multiple locking blocks and multiple locking holes at intervals along the sliding direction, the hook can be continuously slidably adjusted between multiple height levels and automatically locked, improving the adaptability of installation and adjustment efficiency. Attached Figure Description
[0015] Figure 1 This is an assembly diagram of the present invention; Figure 2 This is a schematic diagram showing the different heights of the energy meter of this utility model; Figure 3 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the independent hook of this utility model.
[0016] The attached diagram is labeled as follows: 1. Electricity meter housing; 2. Independent hook; 3. Groove; 4. Hanging hole; 5. Locking block; 6. Guide slope; 7. Locking hole; 8. Tripping slope; 9. Push head; 10. Push slope; 11. Locking right angle surface; 12. Right angle side; 13. Elastic reset component; 14. Clearance groove. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 : Example 1:
[0018] This embodiment provides a hook mounting structure for an electricity meter, including an electricity meter housing 1 and an independent hook 2. The back of the electricity meter housing 1 is provided with a groove 3, and the independent hook 2 is slidably disposed in the groove 3 and has a hanging hole 4. It also includes: Locking blocks 5 are spaced apart in the groove 3 along the sliding direction of the independent hook 2. Each locking block 5 has a guide slope 6 on one side facing the sliding direction of the independent hook 2, and each locking block 5 is configured to elastically extend and retract in a direction perpendicular to the bottom of the groove. Locking holes 7 are spaced apart on the independent hooks 2 along the sliding direction and correspond one-to-one with each of the locking blocks 5. Each locking hole 7 has a release slope 8 adapted to the guide slope 6 on its upper edge. The push head 9 is located at the bottom of the independent hook 2, and the side of the push head 9 facing the groove 3 is provided with a push slope 10 that is adapted to the guide slope 6.
[0019] The back of the electricity meter housing 1 has a groove 3 extending vertically, with an opening at the top for the independent hook 2 to slide in or out from above. Each side of the opening at the top of the groove 3 has a flexible anti-detachment tab. After the hook slides into the groove 3, the anti-detachment tab automatically resets to block the top of the hook, preventing it from coming off the top opening due to vibration or misoperation during use. For disassembly, simply pry the anti-detachment tab outwards to remove the hook from the top. The independent hook 2 has a plate-like structure with a hanging hole 4 at its top for attaching the meter box fixing screws. The independent hook 2 is slidably accommodated within the groove 3 and can slide up and down along the extension direction of the groove 3 to adjust its position relative to the electricity meter housing 1.
[0020] The inner walls of the groove 3 and the two sides of the independent hook 2 are slidably connected by a T-shaped groove and a T-shaped slider. Specifically, each of the inner walls of the groove 3 has a T-shaped channel, which runs vertically through the side wall of the groove 3, and the width of the channel opening is smaller than the width of the channel bottom. The two sides of the independent hook 2 are respectively provided with protruding T-shaped sliders. The cross-sectional shape of the T-shaped slider matches the cross-sectional shape of the T-shaped channel, that is, the width of the slider head is greater than the width of the neck. The T-shaped slider is embedded in the T-shaped channel, and the two are in clearance fit, so that the slider can slide freely up and down along the channel. Since the width of the T-shaped channel opening is smaller than the width of the T-shaped slider head, the slider is constrained by the channel opening edge in the front-back direction and cannot be dislodged from the channel opening, thus forming a positive mechanical constraint on the independent hook 2 in the direction perpendicular to the back of the energy meter housing 1. The T-shaped slider and the independent hook 2 body are integrally formed, either directly formed by milling or stamping the two sides of the independent hook 2, or integrally formed by injection molding of the independent hook 2 as a whole. Understandably, the fit between the T-slot and the T-slider can also be replaced by the fit between the dovetail groove and the dovetail tenon, that is, the groove cross-section is dovetail-shaped and the slider cross-section is a corresponding dovetail-shaped, and both can achieve the anti-detachment function in the front and back directions.
[0021] On the bottom surface of the groove 3, multiple locking blocks 5 are spaced apart along the sliding direction of the independent hook 2. The bottom of the groove 3 has the same number of mounting holes or mounting slots as the locking blocks 5. Each mounting hole or mounting slot extends into the housing in a direction perpendicular to the bottom of the groove to accommodate the locking blocks 5 and the elastic reset member 13 connected to them.
[0022] The locking block 5 is made of hard plastic or metal and is block-shaped. It has a guide slope 6 on the side facing the sliding direction of the independent hook 2. The guide slope 6 is a plane that extends obliquely downward from the top of the locking block 5 and into the interior of the locking block 5. Each locking block 5 has a locking right angle surface 11 on the other side facing away from the sliding direction of the independent hook 2. The locking right angle surface 11 is a plane that is basically perpendicular to the bottom of the groove.
[0023] Each locking block 5 is connected to the bottom of the groove 3 via a compression spring to achieve elastic expansion and contraction in a direction perpendicular to the bottom of the groove. Specifically, the compression spring is set in the mounting hole or mounting groove, with one end abutting against the bottom surface of the mounting hole or the bottom wall of the mounting groove, and the other end sleeved on or abutting against the positioning post at the bottom of the locking block 5. Under the elastic force of the compression spring, the locking block 5 tends to pop outwards towards the bottom of the groove, with its head protruding from the bottom plane of the groove; when the head of the locking block 5 is subjected to pressure towards the bottom of the groove, the locking block 5 compresses the spring and slides back along the side wall of the mounting hole or mounting groove towards the bottom of the groove. After the pressure is released, it resets and pops out under the action of the spring force. A retaining edge may be provided at the opening of the mounting hole or mounting groove, and a protruding limiting step is provided at the bottom of the locking block 5. The limiting step cooperates with the retaining edge to prevent the locking block 5 from completely dislodging from the mounting hole or mounting groove under the action of the spring force.
[0024] Understandably, the compression spring can also be replaced with a spring sheet. One end of the spring sheet is fixed to the bottom of the groove 3 by riveting or screwing, and the other end abuts or snaps against the bottom of the locking block 5. The elastic bending part of the spring sheet provides elastic restoring force for the locking block 5.
[0025] The independent hook 2 has multiple locking holes 7 on its body. Each locking hole 7 is a rectangular or square through hole that penetrates the thickness of the independent hook 2 body. The number of locking holes 7 is the same as the number of locking blocks 5, and the spacing between each locking hole 7 along the sliding direction is the same as the spacing between each locking block 5 along the sliding direction. The position of each locking hole 7 corresponds to a locking block 5, and when the hook slides to the target position, the locking hole 7 is exactly aligned with the locking block 5.
[0026] Each locking hole 7 has a release ramp 8 at its upper edge. The release ramp 8 is a plane that extends obliquely upward from the upper edge of the locking hole 7 and into the hook body. The inclination direction of the release ramp 8 matches the inclination direction of the guide ramp 6 of the locking block 5, and the two have the same inclination angle. When the hook continues to move downward, the release ramp 8 can slide in surface contact with the guide ramp 6 of the engaged locking block 5. Each locking hole 7 has a right angle side 12 at its lower edge. The right angle side 12 is a plane at the lower edge of the locking hole 7 that is perpendicular or nearly perpendicular to the surface of the hook body. The release ramp 8 at the upper edge and the right angle side 12 at the lower edge of the locking hole 7 are directly machined on the independent hook body by milling, stamping, or injection molding.
[0027] The bottom of the independent hook 2 is provided with a push head 9. The push head 9 and the independent hook 2 are integrally molded, that is, the push head 9 is not a part independently assembled on the hook body, but is formed by extending downward from the bottom end of the independent hook 2 body. The push head 9 is integrally formed during the injection molding of the independent hook 2, or formed together during the stamping and bending of the independent hook 2 as a whole metal sheet. The side of the push head 9 facing the groove 3 is provided with a push slope 10. The push slope 10 is a plane that extends obliquely upward from the bottom end of the push head 9 and towards the hook body. Its inclination direction is adapted to the inclination direction of the guide slope 6 of the locking block 5.
[0028] A clearance groove 14 is provided at the bottom of the groove 3. The clearance groove 14 is formed by the bottom of the groove 3 recessed into the housing. Its position corresponds to the projection position of the push head 9 when the hook slides to the bottommost position. Its depth and width are sufficient to accommodate the push head 9 so that the push head 9 will not interfere with the bottom surface of the groove 3 when the hook slides to the bottommost position.
[0029] When installing the electricity meter, the operator pushes the independent hook 2 downwards through the top opening of the groove 3 on the back of the electricity meter housing 1. The push head 9 at the bottom of the hook first contacts the uppermost locking block 5, and the push slope 10 on the push head 9 slides in surface contact with the guide slope 6 of the locking block 5. The downward pushing force is converted into a lateral force that drives the locking block 5 to retract along the mounting hole towards the bottom of the groove through the cooperation of the two slopes. The locking block 5 compresses the spring and retracts into the mounting hole, allowing the hook to pass through and continue to slide downwards. It is worth emphasizing that the push head 9 and its push slope 10 mainly play a role in the initial insertion of the independent hook 2 into the groove 3 and in the process of passing over the locking block 5 from a certain locking point. When the independent hook 2 is already in the locked state and needs to be adjusted further downwards, the unlocking and passing over are mainly achieved by the cooperation of the release slope 8 on the upper edge of the locking hole 7 and the guide slope 6 of the locking block 5, while the push head 9 provides auxiliary pushing or only guides the hook to continue downwards after passing over the next locking block 5. The two inclined plane cooperation mechanisms work together to ensure the hook's continuous unidirectional sliding capability throughout the entire stroke.
[0030] When the first locking hole 7 on the hook slides down and aligns with the first locking block 5, the locking block 5 disengages from the hook body. The compression spring pushes the locking block 5 outward along the mounting hole, and the head of the locking block 5 engages in the locking hole 7. At this point, the locking right-angled surface 11 of the locking block 5 abuts against the right-angled side 12 of the lower edge of the locking hole 7, forming a rigid surface contact. The hook is locked at this height position and cannot slide upwards or backwards.
[0031] If further downward adjustment of the hook is required, the operator continues to apply downward pushing force to the hook. The locking block 5, already engaged in the locking hole 7, moves upward relative to the hook, and the release ramp 8 at the upper edge of the locking hole 7 slides in surface contact with the guide ramp 6 of the locking block 5. Since the two ramps have the same inclination angle, the downward pushing force is smoothly converted into a lateral force that presses the locking block 5 back into the mounting hole. The locking block 5 is squeezed out of the locking hole 7 and retracts into the mounting hole, achieving automatic unlocking. The hook continues to slide downward past the locking block 5 and repeats the above locking process at the next locking block 5. In this way, the operator only needs to continuously push the hook downward to continuously slide between multiple height settings and automatically complete the step-by-step locking and unlocking until the desired height is achieved.
[0032] If the hook height needs to be adjusted upwards, a flat tool such as a flathead screwdriver can be inserted into the relief groove 14 at the bottom of the groove 3, and the bottom of the hook can be pried upwards to make the guide slope 6 of the locking block 5 slide relative to the right angle side 12 of the locking hole 7, compress the locking block 5 to retract into the mounting hole, and the hook can be slid upwards to the target height. After releasing, the locking block 5 will automatically reset and snap into the corresponding locking hole 7 to complete the locking.
[0033] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A hook mounting structure for an electricity meter, comprising an electricity meter housing (1) and an independent hook (2), wherein the back of the electricity meter housing (1) is provided with a groove (3), and the independent hook (2) is slidably disposed within the groove (3) and has a hanging hole (4), characterized in that, Also includes: Locking blocks (5) are spaced apart in the groove (3) along the sliding direction of the independent hook (2). Each locking block (5) has a guide slope (6) on the side facing the sliding direction of the independent hook (2), and each locking block (5) is configured to elastically extend and retract in a direction perpendicular to the bottom of the groove. Locking holes (7) are spaced apart on the independent hooks (2) along the sliding direction and correspond one-to-one with each of the locking blocks (5). Each locking hole (7) has a release slope (8) adapted to the guide slope (6) on its upper edge. The push head (9) is located at the bottom of the independent hook (2), and the push head (9) has a push slope (10) adapted to the guide slope (6) on the side facing the groove (3).
2. The hook mounting structure for an electricity meter according to claim 1, characterized in that, The two side walls of the groove (3) are slidably connected to the two side sides of the independent hook (2) through the cooperation of the T-shaped groove and the T-shaped slider.
3. The hook mounting structure for an electricity meter according to claim 1, characterized in that, Each of the locking blocks (5) has a locking right angle surface (11) on the side opposite to the sliding direction, and the lower edge of each of the locking holes (7) has a right angle side (12) that abuts against the locking right angle surface (11).
4. The hook mounting structure for an electricity meter according to claim 1, characterized in that, The locking block (5) is connected to the bottom of the groove (3) through an elastic reset member (13), which is a compression spring or a spring sheet.
5. The hook mounting structure for an electricity meter according to claim 1, characterized in that, The bottom of the groove (3) is provided with a clearance groove (14) for accommodating the propulsion head (9).
6. The hook mounting structure for an electricity meter according to claim 1, characterized in that, The inclination angle of the tripping ramp (8) is the same as the inclination angle of the guide ramp (6).
7. The hook mounting structure for an electricity meter according to claim 1, characterized in that, The propulsion head (9) and the independent hook (2) are integrally formed.