Low-voltage electric energy metering box with protection mechanism
Patent Information
- Application Number
- CN202521270251.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-19
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-06-19
AI Technical Summary
[0006]有鉴于此,本实用新型提供一种带有保护机构的低压电能计量箱,以解决或缓解现有技术中存在的技术问题,至少提供一种有益的选择
[0018]I. By setting up adjustment and protective components, this utility model can protect the enclosure, resist external impacts, prevent enclosure deformation, extend the service life of the enclosure, reduce maintenance costs, and ensure measurement accuracy and equipment stability.
Smart Images

Figure CN224733289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a low-voltage power metering box with a protection mechanism, belonging to the field of electrical facility technology. Background Technology
[0002] A low-voltage electricity metering box is a specialized device used for electricity metering and management in low-voltage power distribution systems. It is typically installed on the user side (such as in residential, industrial, and commercial locations) to accurately measure and record electricity consumption. Its core components include an electricity meter, circuit breaker, terminals, and protective devices, providing functions such as anti-theft protection, overload protection, and data acquisition. The box is often constructed from flame-retardant and corrosion-resistant materials, and its structural design balances safety and heat dissipation. Some smart models also support remote meter reading and real-time monitoring, making it a crucial infrastructure for power grid companies to conduct electricity billing and energy efficiency management.
[0003] Authorization announcement number (CN219179478U) discloses a low-voltage electricity metering box, belonging to the field of electrical facility technology. It includes an outer casing and a door, with the door hinged to the front end of the outer casing. The door has a viewing window. Multiple heat dissipation vents are provided on both sides of the outer casing. A top cover is installed on the top of the outer casing, and a fixing frame is fixedly connected to the bottom of the top cover. Locking components, including screws and locking bolts, are provided on both sides of the fixing frame. A loading plate is fixedly connected to the bottom of the top cover. The top of the outer casing matches the fixing frame, and the fixing frame is fitted over the top of the outer casing. This utility model designs the low-voltage electricity metering box with a split structure, allowing the parts for installing electricity meters and circuit breakers to be disassembled as a whole. When maintenance is required, the entire box can be removed, freeing personnel from spatial constraints and facilitating the maintenance of various electrical components.
[0004] However, the above-mentioned technologies lack protective measures during use. If the exterior of the low-voltage electricity metering box is not subjected to collisions, external impacts may cause deformation or damage to the box body, causing displacement or damage to key internal components, and leading to loose wires, short circuits or open circuits, resulting in abnormal power supply or even equipment burnout. At the same time, if the box door or sealing structure is damaged, it will reduce the dustproof and moisture-proof capabilities, accelerate the corrosion of internal components or insulation aging, and increase the risk of leakage and fire.
[0005] Therefore, a low-voltage power metering box with a protection mechanism is proposed. Utility Model Content
[0006] In view of this, the present invention provides a low-voltage power metering box with a protection mechanism to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.
[0007] The technical solution of this utility model is achieved as follows: a low-voltage power metering box with a protection mechanism, comprising:
[0008] An adjustment assembly includes a housing, a rain shelter fixedly installed on the top of the housing, a door movably connected to the front of the housing via a hinge, an adjustment box fixedly installed at the bottom of the housing, a bidirectional threaded rod movably connected to the inner cavity of the adjustment box, threaded sleeves threadedly connected to both the left and right sides of the surface of the bidirectional threaded rod, connecting rods fixedly installed on the front and rear sides of the two threaded sleeves, and protective covers fixedly installed on the top of the four connecting rods.
[0009] The protective assembly includes baffles located inside the two protective covers, guide rods fixedly installed around the outer perimeter of the two baffles, and rigid springs fixedly installed around the outer perimeter of the two baffles and outside the guide rods, with the other end of the rigid springs fixedly connected to the inner perimeter of the protective covers.
[0010] More preferably, the inner cavity of the regulating box is movably connected to a transmission gear via a rotating shaft, and a driven gear is fixedly installed on the surface of the bidirectional threaded rod, with the surface of the driven gear meshing with the surface of the transmission gear.
[0011] More preferably, a knob is movably connected to the rear side of the adjustment box via a rotating shaft, and the knob is fixedly connected to a transmission gear.
[0012] More preferably, the front and rear sides of the adjustment box are provided with through grooves, and the connecting rod passes through the through grooves and is connected to the protective cover.
[0013] More preferably, a slider is fixedly installed on the top of the two threaded sleeves, and a sliding groove is provided on both the left and right sides of the top of the inner cavity of the adjustment box, and the slider is slidably connected to the inner side of the sliding groove.
[0014] More preferably, the bottom of the regulating box is bolted with a cover plate, which is detachable and can be removed to maintain the interior of the regulating box.
[0015] More preferably, through holes are provided around the outer perimeter of the protective cover, the guide rod is slidably connected to the inner side of the through holes, and a limit block is fixedly installed on the outer side of the guide rod, the diameter of the limit block being larger than that of the through holes.
[0016] More preferably, a plurality of equally spaced buffer strips are fixedly installed on the inner sides of both baffles, and the buffer strips are made of sponge.
[0017] The present invention has the following advantages due to the adoption of the above technical solution:
[0018] I. By setting up adjustment and protective components, this utility model can protect the enclosure, resist external impacts, prevent enclosure deformation, extend the service life of the enclosure, reduce maintenance costs, and ensure measurement accuracy and equipment stability.
[0019] Second, the present invention can improve the stability of the connecting rod during movement by setting the through groove, and can play a guiding role by setting the slider and the slide groove to avoid the threaded sleeve from deviating during movement. The through hole can ensure that the baffle moves along the predetermined trajectory, and the buffer strip can further play a buffering role.
[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a three-dimensional front view structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the three-dimensional bottom structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the box structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the cover plate in the disassembled state of this utility model;
[0026] Figure 5 This is a cross-sectional structural diagram of the regulating box and protective cover of this utility model;
[0027] Figure 6 This is a schematic diagram of the disassembled baffle structure of this utility model;
[0028] Figure 7 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0029] Reference numerals: 100, Adjustment component; 101, Housing; 102, Rain shelter; 103, Door; 104, Adjustment box; 105, Knob; 106, Transmission gear; 107, Bidirectional threaded rod; 108, Driven gear; 109, Threaded sleeve; 110, Connecting rod; 111, Protective cover; 112, Through groove; 113, Slider; 114, Slide groove; 115, Cover plate; 200, Protective component; 201, Baffle; 202, Guide rod; 203, Hard spring; 204, Limiting block; 205, Through hole; 206, Buffer strip. Detailed Implementation
[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0032] Example 1
[0033] like Figure 1-7 As shown, this utility model embodiment provides a low-voltage power metering box with a protection mechanism, comprising:
[0034] Adjustment assembly 100 includes a housing 101, a rain shelter 102 fixedly installed on the top of the housing 101, a door 103 movably connected to the front of the housing 101 via a hinge, an adjustment box 104 fixedly installed at the bottom of the housing 101, a bidirectional threaded rod 107 movably connected to the inner cavity of the adjustment box 104, threaded sleeves 109 threadedly connected to the left and right sides of the surface of the bidirectional threaded rod 107, connecting rods 110 fixedly installed on the front and rear sides of the two threaded sleeves 109, and protective covers 111 fixedly installed on the top of the four connecting rods 110.
[0035] The protective assembly 200 includes baffles 201 located inside the two protective covers 111. Guide rods 202 are fixedly installed around the outer sides of the two baffles 201. Hard springs 203 are fixedly installed around the outer sides of the two baffles 201 and outside the guide rods 202. The other end of the hard springs 203 is fixedly connected to the inner sides of the protective covers 111.
[0036] The inner cavity of the regulating box 104 is movably connected to the transmission gear 106 via a rotating shaft. The surface of the bidirectional threaded rod 107 is fixedly mounted with the driven gear 108. The surface of the driven gear 108 meshes with the surface of the transmission gear 106. The rear side of the regulating box 104 is movably connected to the knob 105 via a rotating shaft. The knob 105 is fixedly connected to the transmission gear 106.
[0037] By adjusting the settings of component 100 and protective component 200, the enclosure 101 can be protected against external impacts, preventing deformation of the enclosure 101, extending the service life of the enclosure 101, reducing maintenance costs, and ensuring measurement accuracy and equipment stability.
[0038] Example 2
[0039] like Figure 1-7 As shown, in one embodiment, through slots 112 are provided on both the front and rear sides of the surface of the regulating box 104. The connecting rod 110 passes through the through slots 112 and is connected to the protective cover 111. Slider 113 is fixedly installed on the top of the two threaded sleeves 109. Slide grooves 114 are provided on both the left and right sides of the top of the inner cavity of the regulating box 104. The slider 113 is slidably connected to the inner side of the slide groove 114. The bottom of the regulating box 104 is bolted with a cover plate 115. The cover plate 115 is detachable and can be disassembled for maintenance of the inside of the regulating box 104. Through holes 205 are provided around the outer perimeter of the protective cover 111. The guide rod 202 is slidably connected to the inner side of the through hole 205. A limit block 204 is fixedly installed on the outer side of the guide rod 202. The diameter of the limit block 204 is larger than that of the through hole 205. Multiple equidistant buffer strips 206 are fixedly installed on the inner side of the two baffles 201. The material of the buffer strips 206 is sponge.
[0040] The through groove 112 improves the stability of the connecting rod 110 during movement. The slider 113 and the groove 114 provide guidance to prevent the threaded sleeve 109 from shifting during movement. The through hole 205 ensures that the baffle 201 moves along a predetermined trajectory. The buffer strip 206 further enhances the buffering effect.
[0041] In operation, this invention works as follows: The transmission gear 106 rotates by manually rotating the knob 105. Simultaneously, the transmission gear 106 rotates, driving the driven gear 108 to rotate via tooth meshing, causing the bidirectional threaded rod 107 to rotate. As the bidirectional threaded rod 107 rotates, the threaded connections cause the threaded sleeves 109 on both sides to move inwards, thereby moving the connecting rod 110 and the protective cover 111 inwards to cover the housing 101. Simultaneously, the protective cover 111 moves inwards, causing the baffle 201 to fit against both sides of the housing 101. When the outer side is impacted, the protective cover 111 first provides resistance. When vibration occurs due to the impact, the housing 101 will press against the baffle 201 on both sides, causing the rigid spring 203 to compress and deform. During the compression process of the rigid spring 203, the impact force generated by the collision is absorbed and eliminated, thus protecting the housing 101 and reducing collision damage.
[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A low-voltage electricity metering box with a protection mechanism, characterized in that, include: An adjustment assembly (100) includes a housing (101), a rain shelter (102) fixedly installed on the top of the housing (101), a door (103) movably connected to the front side of the housing (101) via a hinge, an adjustment box (104) fixedly installed at the bottom of the housing (101), a bidirectional threaded rod (107) movably connected to the inner cavity of the adjustment box (104), threaded sleeves (109) threadedly connected to the left and right sides of the surface of the bidirectional threaded rod (107), connecting rods (110) fixedly installed on the front and rear sides of the two threaded sleeves (109), and a protective cover (111) fixedly installed on the top of the four connecting rods (110). The protective assembly (200) includes baffles (201) located inside the two protective covers (111), guide rods (202) are fixedly installed around the outer sides of the two baffles (201), and rigid springs (203) are fixedly installed around the outer sides of the two baffles (201) and outside the guide rods (202), with the other end of the rigid springs (203) fixedly connected to the inner sides of the protective covers (111).
2. A low-voltage power metering box with a protection mechanism according to claim 1, characterized in that: The inner cavity of the regulating box (104) is movably connected to a transmission gear (106) via a rotating shaft. A driven gear (108) is fixedly installed on the surface of the bidirectional threaded rod (107), and the surface of the driven gear (108) meshes with the surface of the transmission gear (106).
3. A low-voltage power metering box with a protection mechanism according to claim 2, characterized in that: A knob (105) is movably connected to the rear side of the regulating box (104) via a rotating shaft, and the knob (105) is fixedly connected to the transmission gear (106).
4. A low-voltage power metering box with a protection mechanism according to claim 1, characterized in that: The front and rear sides of the surface of the regulating box (104) are provided with through grooves (112), and the connecting rod (110) passes through the through grooves (112) and is connected to the protective cover (111).
5. A low-voltage power metering box with a protection mechanism according to claim 1, characterized in that: A slider (113) is fixedly installed on the top of the two threaded sleeves (109). Slide grooves (114) are provided on the left and right sides of the top of the inner cavity of the adjustment box (104). The slider (113) is slidably connected to the inner side of the slide groove (114).
6. A low-voltage power metering box with a protection mechanism according to claim 1, characterized in that: The bottom of the regulating box (104) is bolted with a cover plate (115), which is detachable and can be removed to maintain the interior of the regulating box (104).
7. A low-voltage power metering box with a protection mechanism according to claim 1, characterized in that: The protective cover (111) has through holes (205) on all four sides of its outer side. The guide rod (202) is slidably connected to the inner side of the through hole (205). A limit block (204) is fixedly installed on the outer side of the guide rod (202). The diameter of the limit block (204) is larger than that of the through hole (205).
8. A low-voltage power metering box with a protection mechanism according to claim 7, characterized in that: Multiple equidistant buffer strips (206) are fixedly installed on the inner sides of both baffles (201), and the buffer strips (206) are made of sponge.
Citation Information
Patent Citations
Low-voltage electric energy metering box
CN219179478U