Single-phase single-meter-position nonmetal low-voltage metering box

Abstract

The invention discloses a single-phase single-meter-position non-metal low-voltage metering box which comprises a low-voltage metering box body, ventilation holes are formed in the low-voltage metering box body, a door lock is arranged on the front face of the low-voltage metering box body, and a small switch door is arranged on the front face of the low-voltage metering box body. Incoming and outgoing line knock-off holes are formed in the low-voltage metering box body, antenna knock-off holes are formed in the low-voltage metering box body, a nameplate is arranged on the front face of the low-voltage metering box body, a household name and number plate is arranged on the front face of the low-voltage metering box body, and a sunshade plate is arranged on the front face of the low-voltage metering box body. The outer side of the low-voltage metering box main body is provided with a dustproof mechanism. The device can be conveniently installed, and dust is prevented from being accumulated in the device.

Description

Technical Field

[0001] This invention relates to the field of metrology and measurement devices, and more specifically, to a single-phase, single-position non-metallic low-pressure metering box. Background Technology

[0002] Single-phase, single-position non-metallic low-voltage metering boxes are mainly used in the fields of low-voltage power distribution and power metering management. They primarily serve the power system's end-point scenarios of power metering, electricity consumption supervision, and equipment protection. The specific scope of coverage can be defined from three aspects: application scenarios, related industries, and functional positioning. In terms of application scenarios, they are widely used in residential buildings, small commercial spaces, and low-voltage industrial auxiliary power consumption. As the core carrier of single-phase power metering, they directly connect the power supplier and the end-user, enabling accurate metering and safe control of single-phase low-voltage power consumption. A search revealed that utility model patent CN205941638U discloses a single-phase, single-meter, non-metallic low-voltage metering box, comprising a box body with a flat upper part and an inwardly curved lower part. The flat part has a meter hole, and the curved part has a recessed square groove in the middle, with a switch hole at the bottom. A baffle that can slide up and down to open and close the groove opening is provided on the inner wall of the curved part. The structure is simple and reasonable, allowing for the installation of small-volume, low-height devices within the box corresponding to the curved part, maximizing the use of internal space and avoiding waste. Furthermore, it results in an aesthetically pleasing box, saves external space, reduces material usage, and lowers costs. However, in the existing technology, external tools are required for installation, making installation inconvenient. Moreover, the lack of a dustproof mechanism allows dust to easily enter the device through ventilation holes, leading to dust accumulation inside. Therefore, improvements are needed. Summary of the Invention

[0003] To address the problems existing in the prior art, the purpose of this invention is to provide a single-phase, single-position non-metallic low-pressure metering box, which can facilitate installation and prevent dust accumulation inside the device.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A single-phase, single-position non-metallic low-voltage metering box includes a low-voltage metering box body, an internal ventilation hole, a door lock on the front, a small door for opening and closing on the front, inlet / outlet line knockout holes and an antenna knockout hole inside the body, a nameplate on the front, a nameplate and a household name / number plate on the front, a sunshade plate on the front, a dustproof mechanism on the outer side, a connecting plate fixedly connected to the outer side, a connecting groove inside the connecting plate, a connecting block in contact with the connecting groove, a mounting plate fixedly connected to the connecting block, the mounting plate in contact with the connecting plate, and an mounting mechanism inside the connecting plate.

[0006] In a preferred embodiment of the present invention, the dustproof mechanism includes a connecting sleeve. The connecting sleeve contacts the outer side of the low-pressure metering box body. A filter screen is fixedly connected inside the connecting sleeve. An installation strip is fixedly connected to the outer side of the connecting sleeve. A threaded groove is formed inside the low-pressure metering box body. A screw is threadedly connected inside the threaded groove. A rotating block is fixedly connected to the screw. The rotating block contacts the connecting sleeve. The screw is contacted inside the connecting sleeve. A motor is fixedly installed on the outer side of the connecting sleeve. The rotating shaft of the motor is rotatably connected to the connecting sleeve. A threaded rod is fixedly connected to the rotating shaft of the motor. The threaded rod is rotatably connected to the connecting sleeve. A bearing is fixedly sleeved inside the connecting sleeve. A threaded rod is fixedly sleeved inside the inner ring of the bearing. A threaded block is threadedly connected to the outer side of the threaded rod. A sliding block is fixedly connected to the threaded block. A guide rod is slidably connected inside the sliding block. Both ends of the guide rod are fixedly connected to the connecting sleeve. A groove is formed inside the sliding block. An impact block is fixedly connected to the threaded block. An elastic block is fixedly connected to the outer side of the filter screen.

[0007] In a preferred embodiment of the present invention, the dustproof mechanism includes a connecting sleeve. The connecting sleeve contacts the outer side of the low-pressure metering box body. A filter screen is fixedly connected inside the connecting sleeve. An installation strip is fixedly connected to the outer side of the connecting sleeve. A threaded groove is formed inside the low-pressure metering box body. A screw is threadedly connected inside the threaded groove. A rotating block is fixedly connected to the screw. The rotating block contacts the connecting sleeve. The screw is contacted inside the connecting sleeve. A motor is fixedly installed on the outer side of the connecting sleeve. The rotating shaft of the motor is rotatably connected to the connecting sleeve. A threaded rod is fixedly connected to the rotating shaft of the motor. The threaded rod is rotatably connected to the connecting sleeve. A bearing is fixedly sleeved inside the connecting sleeve. A threaded rod is fixedly sleeved inside the inner ring of the bearing. A threaded block is threadedly connected to the outer side of the threaded rod. A sliding block is fixedly connected to the threaded block. A guide rod is slidably connected inside the sliding block. Both ends of the guide rod are fixedly connected to the connecting sleeve. A groove is formed inside the sliding block. An impact block is fixedly connected to the threaded block. An elastic block is fixedly connected to the outer side of the filter screen. External dust can be filtered through the filter screen, preventing dust from entering the device through the ventilation holes and preventing dust accumulation inside the device. When the motor is started, the motor drives the threaded rod and threaded block to make threaded movement. The movement of the threaded block causes the impact block and other components to move. The movement of the impact block impacts the elastic block and vibrates. The vibration of the elastic block causes the filter screen to vibrate, thereby preventing the filter screen from becoming clogged and preventing the filter screen's working efficiency from decreasing.

[0008] As a preferred embodiment of the present invention, a ball bearing is provided inside the groove, and the ball bearing contacts the guide rod. By designing the ball bearing, the friction between the sliding block and the guide rod can be reduced.

[0009] In a preferred embodiment of the present invention, the installation mechanism includes a sliding groove. The connecting block has a sliding groove inside, and a sliding rod is slidably connected inside the sliding groove. A movable plate is fixedly connected to the end of the sliding rod away from the sliding groove. The connecting plate contacts the movable plate. A support block is fixedly connected to the outer side of the sliding rod. A spring is provided inside the connecting plate. A guide groove and a locking groove are provided inside the connecting plate. The connecting plate and the sliding rod are slidably connected. By pulling the sliding rod, after it reaches its position, the low-pressure metering box body moves, driving the connecting plate and sliding rod to a designated position on the mounting plate. Then, the sliding rod is moved into the sliding groove, thereby limiting the position of the low-pressure metering box body and other components, making the device easy to install.

[0010] In a preferred embodiment of the present invention, a fixing block is fixedly connected to the side of the movable plate away from the slide bar, and a connecting ring is fixedly connected to the side of the fixing block away from the movable plate. By designing the connecting ring, the slide bar can be moved.

[0011] In a preferred embodiment of the present invention, one end of the spring is fixedly connected to the support block, and the other end of the spring is fixedly connected to the connecting plate. By designing the spring, the support block has an elastic force.

[0012] As a preferred embodiment of the present invention, a guide block is slidably connected inside the guide groove, and the guide block is fixedly connected to the slide rod. By designing the guide block, the slide rod can be guided.

[0013] As a preferred embodiment of the present invention, an elastic block is engaged inside the slot, and the elastic block is fixedly connected to the slide rod. By designing the elastic block, the slide rod can be limited.

[0014] Compared with the prior art, the advantages of this invention are:

[0015] (1) In this invention, by designing components such as a sliding groove, a sliding rod, a moving plate, a fixed block, a connecting ring, and a support block, the sliding rod is pulled to move. After the sliding rod moves to the position, the main body of the low-pressure metering box is moved to the designated position on the mounting plate along with the connecting plate and the sliding rod. Then the sliding rod is moved into the sliding groove, thereby limiting the main body of the low-pressure metering box and other components, making the device easy to install.

[0016] (2) In this invention, by designing components such as connecting sleeve, filter screen, mounting strip, threaded groove, screw and rotating block, the filter screen can filter external dust, thereby preventing dust from entering the device from the ventilation hole and preventing dust from accumulating inside the device. When the motor is started, the motor drives the threaded rod and threaded block to make threaded movement. The movement of the threaded block drives the impact block and other components to move. The movement of the impact block impacts the elastic block to vibrate. The vibration of the elastic block drives the filter screen to vibrate, thereby preventing the filter screen from becoming clogged and preventing the working efficiency of the filter screen from decreasing. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Partial sectional perspective view of the structure;

[0019] Figure 3 For the present invention Figure 1 Side sectional view;

[0020] Figure 4 For the present invention Figure 2 Enlarged view of the ventilation opening;

[0021] Figure 5 For the present invention Figure 4 Enlarged view of point A;

[0022] Figure 6For the present invention Figure 4 Enlarged view of point B;

[0023] Figure 7 For the present invention Figure 3 Enlarged view of point C.

[0024] The labels in the diagram are as follows: 1. Low-pressure metering box body; 2. Ventilation hole; 4. Door lock; 5. Switch door; 6. Knockout hole for inlet / outlet lines; 7. Knockout hole for antenna; 8. Nameplate; 9. Customer name and number plate; 10. Sunshade plate; 11. Dustproof mechanism; 111. Connecting sleeve; 112. Filter screen; 113. Mounting strip; 114. Threaded groove; 115. Screw; 116. Rotating block; 117. Motor; 118. Threaded rod; 119. Bearing; 1110. Threaded block; 1111. Sliding block. ; 1112, guide rod; 1113, groove; 1114, ball bearing; 1115, impact block; 1116, elastic block; 12, connecting plate; 13, connecting groove; 14, connecting block; 15, mounting plate; 16, mounting mechanism; 161, sliding groove; 162, sliding rod; 163, moving plate; 164, fixing block; 165, connecting ring; 166, support block; 167, spring; 168, guide groove; 169, guide block; 1610, slot; 1611, elastic locking block. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example:

[0029] Please see Figures 1-7 A single-phase, single-position non-metallic low-voltage metering box includes a low-voltage metering box body 1. The body 1 has ventilation holes 2 inside. A door lock 4 and a small door 5 are located on the front of the body 1. Knockout holes 6 and 7 for inlet / outlet lines and an antenna knockout hole are located inside the body 1. A nameplate 8 is located on the front of the body 1. A nameplate and number plate 9 are provided. A sunshade plate 10 is provided on the front of the low-pressure metering box body 1. A dustproof mechanism 11 is provided on the outside of the low-pressure metering box body 1. A connecting plate 12 is fixedly connected to the outside of the low-pressure metering box body 1. A connecting groove 13 is provided inside the connecting plate 12. A connecting block 14 is in contact inside the connecting groove 13. An mounting plate 15 is fixedly connected to the connecting block 14. The mounting plate 15 is in contact with the connecting plate 12. An installation mechanism 16 is provided inside the connecting plate 12.

[0030] For details, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6The dustproof mechanism 11 includes a connecting sleeve 111. The connecting sleeve 111 contacts the outer side of the low-pressure metering box body 1. A filter screen 112 is fixedly connected inside the connecting sleeve 111. An installation strip 113 is fixedly connected to the outer side of the connecting sleeve 111. A threaded groove 114 is opened inside the low-pressure metering box body 1. A screw 115 is threadedly connected inside the threaded groove 114. A rotating block 116 is fixedly connected to the screw 115. The rotating block 116 contacts the connecting sleeve 111. The screw 115 contacts the inner side of the connecting sleeve 111. A motor 117 is fixedly installed on the outer side of the connecting sleeve 111. The rotating shaft of the motor 117 is rotatably connected to the connecting sleeve 111. A threaded rod 118 is fixedly connected to the rotating shaft. The threaded rod 118 is rotatably connected to the connecting sleeve 111. A bearing 119 is fixedly sleeved inside the connecting sleeve 111. The threaded rod 118 is fixedly sleeved inside the inner ring of the bearing 119. A threaded block 1110 is threadedly connected to the outside of the threaded rod 118. A sliding block 1111 is fixedly connected to the threaded block 1110. A guide rod 1112 is slidably connected inside the sliding block 1111. Both ends of the guide rod 1112 are fixedly connected to the connecting sleeve 111. A groove 1113 is formed inside the sliding block 1111. An impact block 1115 is fixedly connected to the threaded block 1110. An elastic block 1116 is fixedly connected to the outside of the filter screen 112.

[0031] In this embodiment, external dust can be filtered through the filter screen 112, thereby preventing dust from entering the device through the ventilation hole 2 and preventing dust from accumulating inside the device. The motor 117 is started, and the motor 117 drives the threaded rod 118 and the threaded block 1110 to make threaded movement. The movement of the threaded block 1110 causes the impact block 1115 and other components to move. The movement of the impact block 1115 impacts the elastic block 1116 and vibrates. The vibration of the elastic block 1116 causes the filter screen 112 to vibrate, thereby preventing the filter screen 112 from becoming clogged and preventing the working efficiency of the filter screen 112 from decreasing.

[0032] For details, please refer to Figure 6 The groove 1113 is provided with a ball bearing 1114 inside, and the ball bearing 1114 contacts the guide rod 1112.

[0033] In this embodiment, by designing the ball bearing 1114, the friction between the sliding block 1111 and the guide rod 1112 can be reduced.

[0034] For details, please refer to Figure 7The installation mechanism 16 includes a sliding groove 161. The sliding groove 161 is provided inside the connecting block 14. A sliding rod 162 is slidably connected inside the sliding groove 161. A movable plate 163 is fixedly connected to one end of the sliding rod 162 away from the sliding groove 161. The connecting plate 12 is in contact with the movable plate 163. A support block 166 is fixedly connected to the outside of the sliding rod 162. A spring 167 is provided inside the connecting plate 12. A guide groove 168 is provided inside the connecting plate 12. A retaining groove 1610 is provided inside the connecting plate 12. The connecting plate 12 is slidably connected to the sliding rod 162.

[0035] In this embodiment, by pulling the slide bar 162 to move, after the slide bar 162 moves to the position, the low-pressure metering box body 1 moves the connecting plate 12 and slide bar 162 and other components to the designated position on the mounting plate 15. Then, the slide bar 162 is moved into the slide groove 161, thereby limiting the low-pressure metering box body 1 and other components, making the device easy to install.

[0036] For details, please refer to Figure 7 A fixing block 164 is fixedly connected to the side of the movable plate 163 away from the slide rod 162, and a connecting ring 165 is fixedly connected to the side of the fixing block 164 away from the movable plate 163.

[0037] In this embodiment, the connecting ring 165 is designed to drive the slide bar 162 to move.

[0038] For details, please refer to Figure 7 One end of the spring 167 is fixedly connected to the support block 166, and the other end of the spring 167 is fixedly connected to the connecting plate 12.

[0039] In this embodiment, the support block 166 is elastic by designing a spring 167.

[0040] For details, please refer to Figure 7 The guide groove 168 is slidably connected to a guide block 169, and the guide block 169 is fixedly connected to the slide rod 162.

[0041] In this embodiment, the guide block 169 is designed to guide the slide rod 162.

[0042] For details, please refer to Figure 7 The slot 1610 has an elastic block 1611 inside, and the elastic block 1611 is fixedly connected to the slide rod 162.

[0043] In this embodiment, the slide bar 162 can be limited by designing an elastic locking block 1611.

[0044] Working principle: When the device needs to be installed, pull the connecting ring 165 to move it away from the moving plate 163. The movement of the connecting ring 165 drives the fixed block 164 to move, which in turn drives the moving plate 163 to move. The movement of the moving plate 163 drives the slide rod 162 to move, which in turn drives the elastic locking block 1611, the support block 166, and the guide block 169 to move. The elastic locking block 1611 moves out of the slot 1610, and the support block 166 moves, compressing the spring 167. After the slide rod 162 moves to the designated position, the low-pressure metering box is moved. The body 1 moves the connecting plate 12, connecting ring 165, and slide rod 162 to the designated position on the mounting plate 15. Then, the connecting ring 165 is released, and the elastic force of the spring 167 pushes the support block 166 to move. The movement of the support block 166 causes the slide rod 162 to move. The movement of the slide rod 162 causes the guide block 169 and elastic locking block 1611 to move. After the slide rod 162 moves into the slide groove 161, the elastic locking block 1611 is then locked into the locking groove 1610, thereby limiting the low-pressure metering box body 1 and other components, making the device easy to install.

[0045] When the device is in use, the filter screen 112 can filter external dust, thereby preventing dust from entering the device through the ventilation hole 2 and preventing dust from accumulating inside the device. When the device is used for a long time, the motor 117 is started, and the motor 117 drives the threaded rod 118 to rotate. The rotation of the threaded rod 118 causes threaded movement with the threaded block 1110, which in turn causes relative displacement of the threaded block 1110. The movement of the threaded block 1110 drives the sliding block 1111 and the impact block 1115 to move. The movement of the sliding block 1111 drives the groove 1113 to move. The movement of the groove 1113 drives the ball 1114 to move. The movement of the impact block 1115 impacts the elastic block 1116, which in turn causes the elastic block 1116 to vibrate. The vibration of the elastic block 1116 causes the filter screen 112 to vibrate, thereby preventing the filter screen 112 from becoming clogged and preventing the working efficiency of the filter screen 112 from decreasing.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A single phase single point non-metallic low pressure metering box comprising a low pressure metering box body (1) characterized by: The inside of the low-pressure metering box body (1) is provided with a ventilation hole (2), the front of the low-pressure metering box body (1) is provided with a door lock (4), the front of the low-pressure metering box body (1) is provided with a switch door (5), the inside of the low-pressure metering box body (1) is provided with an inlet and outlet line knock hole (6), the inside of the low-pressure metering box body (1) is provided with an antenna knock hole (7), the front of the low-pressure metering box body (1) is provided with a nameplate (8), the front of the low-pressure metering box body (1) is provided with a household name and number plate (9), the front of the low-pressure metering box body (1) is provided with a sunshade plate (10), the outside of the low-pressure metering box body (1) is provided with a dustproof mechanism (11), the outside of the low-pressure metering box body (1) is fixedly connected with a connecting plate (12), the inside of the connecting plate (12) is provided with a connecting groove (13), the inside of the connecting groove (13) is in contact with a connecting block (14), the connecting block (14) is fixedly connected with a mounting plate (15), and the mounting plate (15) is in contact with the connecting plate (12). The inside of the connecting plate (12) is provided with a mounting mechanism (16).

2. A single phase single point non-metallic low voltage metering box as claimed in claim 1, wherein: The dustproof mechanism (11) comprises a connecting sleeve (111), the outside of the low-pressure metering box body (1) is in contact with the connecting sleeve (111), the inside of the connecting sleeve (111) is fixedly connected with a filter screen (112), the outside of the connecting sleeve (111) is fixedly connected with a mounting strip (113), the inside of the low-pressure metering box body (1) is provided with a threaded groove (114), the inside of the threaded groove (114) is connected with a screw rod (115) through threads, the screw rod (115) is fixedly connected with a rotating block (116), the rotating block (116) is in contact with the connecting sleeve (111), the inside of the connecting sleeve (111) is in contact with the screw rod (115), the outside of the connecting sleeve (111) is fixedly provided with a motor (117), the rotating shaft of the motor (117) is rotatably connected with the connecting sleeve (111), the rotating shaft of the motor (117) is fixedly connected with a threaded rod (118), the threaded rod (118) is rotatably connected with the connecting sleeve (111), the inside of the connecting sleeve (111) is fixedly sleeved with a bearing (119), the inside of the inner ring of the bearing (119) is fixedly sleeved with the threaded rod (118), the outside of the threaded rod (118) is connected with a threaded block (1110) through threads, the threaded block (1110) is fixedly connected with a sliding block (1111), the sliding block (1111) is slidably connected with a guide rod (1112), both ends of the guide rod (1112) are fixedly connected with the connecting sleeve (111), the inside of the sliding block (1111) is provided with a groove (1113), the threaded block (1110) is fixedly connected with a striking block (1115), and the outside of the filter screen (112) is fixedly connected with an elastic block (1116).

3. A single phase single point non-metallic low voltage metering box as claimed in claim 2, wherein: The inside of the groove (1113) is provided with a ball (1114), and the ball (1114) is in contact with the guide rod (1112).

4. A single phase single point non-metallic low tension metering box as claimed in claim 1 wherein: The mounting mechanism (16) includes a sliding groove (161), the inside of the connecting block (14) is opened, the inside of the sliding groove (161) is slidably connected with a sliding rod (162), the end, away from the sliding groove (161), of the sliding rod (162) is fixedly connected with a moving plate (163), the connecting plate (12) contacts the moving plate (163), the outside of the sliding rod (162) is fixedly connected with a supporting block (166), the inside of the connecting plate (12) is provided with a spring (167), the inside of the connecting plate (12) is opened with a guide groove (168), the inside of the connecting plate (12) is opened with a clamping groove (1610), and the connecting plate (12) is slidably connected with the sliding rod (162).

5. A single phase single point non-metallic low voltage metering box as claimed in claim 4, wherein: The side, away from the sliding rod (162), of the moving plate (163) is fixedly connected with a fixed block (164), and the side, away from the moving plate (163), of the fixed block (164) is fixedly connected with a connecting ring (165).

6. A single phase single point non-metallic low tension metering box as claimed in claim 4 wherein: One end of the spring (167) is fixedly connected with the supporting block (166), and the other end of the spring (167) is fixedly connected with the connecting plate (12).

7. A single phase single point non-metallic low tension metering box as claimed in claim 4 wherein: The inside of the guide groove (168) is slidably connected with a guide block (169), and the guide block (169) is fixedly connected with the sliding rod (162).

8. A single phase single point non-metallic low voltage metering box as claimed in claim 4, wherein: The inside of the clamping groove (1610) is clamped with an elastic clamping block (1611), and the elastic clamping block (1611) is fixedly connected with the sliding rod (162).

Images