An electricity meter housing and electricity meter

Abstract

An electric meter housing and an electric meter are disclosed, comprising an upper housing and a lower housing. The upper end face of the lower housing is symmetrically provided with snap-fit ​​units on both sides. The lower end face of the upper housing is provided with plug-in components adapted to the snap-fit ​​units. A downward-through plug-in groove is formed in the center of each plug-in component. Each snap-fit ​​unit includes a mounting groove and an adjusting shaft that slides horizontally within the mounting groove. An elastic element is provided on the adjusting shaft, and snap-fit ​​components are connected to both ends of the elastic element along the vertical axis of the adjusting shaft. The snap-fit ​​components can rotate downwards along the outer circumference of the adjusting shaft. The plug-in components can pass through the mounting groove and connect with the snap-fit ​​components, and the snap-fit ​​components can snap into the upper part of the plug-in groove. The position of the snap-fit ​​components within the plug-in groove is adjustable along the axis parallel to the adjusting shaft. The two snap-fit ​​components of this invention can snap into the two sides inside the arc-shaped groove, ensuring that the upper housing is tightly fitted onto the lower housing and cannot move further downwards or upwards. The remaining plug-in components snap into their corresponding snap-fit ​​components on one side, enabling rapid assembly of the upper and lower housings.

Description

Technical Field

[0001] This utility model relates to the field of meter housing technology, specifically to a meter housing and a meter. Background Technology

[0002] The meter casing is the external structure used to protect the internal components of the meter. Its main function is to prevent the meter from being damaged by the external environment (such as dust, moisture, mechanical impact, etc.), while ensuring the safety and reliability of the meter.

[0003] Existing meter housings typically consist of an upper housing and a lower housing. Both the upper and lower housings have protruding connecting pieces on their outer sides, each with holes. These connecting pieces are connected by bolts. This method of connecting the upper and lower housings using protruding connecting pieces requires aligning the holes on the corresponding connecting pieces before the bolts can be inserted and tightened. However, this requires repeated adjustments to ensure proper alignment, making it inconvenient and unsuitable for large-scale assembly of the upper and lower housings. Furthermore, the protruding connecting pieces increase the installation space required for the meter housing and are aesthetically unappealing. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides an electricity meter housing and an electricity meter.

[0005] The technical solution of this utility model is as follows:

[0006] An electric meter housing includes an upper housing and a lower housing. The upper end face of the lower housing is symmetrically provided with snap-fit ​​units on both sides. The lower end face of the upper housing is provided with a plug-in component adapted to the snap-fit ​​unit. The plug-in component has a downward through-hole in the middle.

[0007] The snap-fit ​​unit includes a mounting groove and an adjusting shaft that slides horizontally within the mounting groove. The adjusting shaft is equipped with an elastic element, and snap-fit ​​elements are connected to both ends of the elastic element along the vertical axis of the adjusting shaft. The snap-fit ​​elements can rotate downward along the outer circumference of the adjusting shaft. The insertion element can pass through the mounting groove and connect with the snap-fit ​​element, and the snap-fit ​​element can snap into the upper part of the insertion groove. The position of the snap-fit ​​element in the insertion groove along the axis parallel to the adjusting shaft is adjustable.

[0008] The structure of the plug slot is as follows: the plug slot includes a snap-fit ​​slot and a guide slot that are connected vertically. The width of the guide slot is adapted to the maximum vertical distance between the two snap-fit ​​pieces. The snap-fit ​​pieces and the guide slot can slide together. The snap-fit ​​slot is an arc-shaped slot, which is adapted to the rotation trajectory of the snap-fit ​​pieces. The width of the arc-shaped slot is greater than the width of the guide slot.

[0009] The mounting structure of the snap-fit ​​component and the adjusting shaft is as follows: one end of the snap-fit ​​component is provided with a through hole that matches the adjusting shaft; the snap-fit ​​component and the adjusting shaft are rotatably connected; and the side of the snap-fit ​​component near the elastic element is connected to the end of the elastic element corresponding to the elastic element.

[0010] Preferably, the elastic element is a torsion spring, which is sleeved on the adjusting shaft, and the middle part of the torsion spring is connected to the adjusting shaft through a connecting structure.

[0011] When the upper and lower housings are not installed, the snap-fit ​​parts are set in the horizontal direction. This is the initial state of the snap-fit ​​parts. The maximum length that the two snap-fit ​​parts can reach is matched with the maximum length of the upper part of the arc groove, which makes it easy for the two snap-fit ​​parts to rotate downward under the pressure of the insertion groove and return to the initial state in the arc groove, which is used to quickly connect the upper and lower housings.

[0012] Preferably, the thickness of the connector and the width of the mounting groove are both aligned with the axial direction of the adjusting shaft, and the sum of the thickness of the connector and the maximum vertical distance between the two snap-fit ​​connectors along the axial direction of the adjusting shaft is less than the width of the mounting groove.

[0013] Preferably, an elongated hole corresponding to the mounting groove is provided on one side of the lower housing, the adjusting shaft passes through the elongated hole, a baffle is provided at the end of the adjusting shaft inside the lower housing, and the end located outside the lower housing is elastically connected to the lower housing through a compression spring sleeved on it.

[0014] As another embodiment of the utility model, an electricity meter includes the aforementioned meter housing and meter body, with the meter body installed inside the meter housing.

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

[0016] When assembling the upper and lower housings, the plug-in parts are connected to the snap-fit ​​parts through the mounting slots. This allows the two snap-fit ​​parts to rotate downwards under the pressure of the side walls of the guide slots of the plug-in parts. The torsion spring undergoes elastic deformation, and the plug-in parts continue to move downwards until the two snap-fit ​​parts move into the arc-shaped groove. The width of the arc-shaped groove is greater than the width of the guide slot, allowing the two snap-fit ​​parts to reset under the action of the torsion spring. The two snap-fit ​​parts are horizontally positioned within the arc-shaped groove, and their ends can be engaged with the two sides inside the arc-shaped groove. This ensures that the upper housing is tightly fitted onto the lower housing and cannot move further downwards or upwards. The other plug-in parts are engaged with their corresponding snap-fit ​​parts on one side, enabling rapid assembly of the upper and lower housings without the need for multiple adjustments to the position of the upper housing.

[0017] In this invention, when the upper and lower housings are installed and connected, the upper and lower housings can only be disassembled by pulling the adjusting shaft to one side so that the snap-fit ​​part moves horizontally and disengages from the insertion slot.

[0018] The width of the mounting slot is greater than the sum of the widths of the plug-in connector, the two snap-fit ​​connectors, and the torsion spring, providing reserved space for moving the two snap-fit ​​connectors and the torsion spring to one side to disengage from the plug-in slot;

[0019] When installing the upper housing into the lower housing, the operator only needs to insert the connector into the corresponding mounting slot; when removing the upper and lower housings, the operator only needs to push or pull one side of the adjusting axis to disengage the snap-fit ​​connector from the arc-shaped groove of the connector slot, thus achieving quick disassembly and assembly of the upper and lower housings.

[0020] The connector is inserted into the mounting slot and will not protrude out of the meter housing. The end of the adjusting shaft that protrudes out of the meter housing does not require bolts, thus occupying less space and being easy to push and pull. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a structural diagram;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a front view;

[0025] Figure 4 Left view;

[0026] Figure 5 for Figure 4 A schematic diagram of the AA-direction cross-section structure;

[0027] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0028] Figure 7 This is a schematic diagram of the snap-fit ​​unit structure;

[0029] The components represented by the various reference numerals in the diagram are:

[0030] 1. Upper housing; 2. Lower housing; 21. Elongated hole; 3. Snap-fit ​​unit; 31. Mounting slot; 32. Adjusting shaft; 33. Elastic element; 34. Snap-fit ​​component; 35. Baffle; 36. Compression spring; 4. Insert component; 41. Snap-fit ​​groove; 42. Guide groove. Detailed Implementation

[0031] See Figure 1 , Figure 2 and Figure 3 As shown, an electric meter housing includes an upper housing 1 and a lower housing 2. The upper end face of the lower housing 2 is symmetrically provided with snap-fit ​​units 3 on both sides. In this embodiment, two sets of snap-fit ​​units 3 are provided on the same side, and a total of four sets of snap-fit ​​units 3 are provided in the lower housing 2. The lower end face of the upper housing 1 is provided with plug-in parts 4 that are adapted to the snap-fit ​​units 3. A total of four sets of plug-in parts 4 are provided, and each plug-in part 4 corresponds to a snap-fit ​​unit 3.

[0032] Each connector 4 has a downward through-hole insertion groove in the middle. The insertion groove includes a snap-fit ​​groove 41 and a guide groove 42 that are connected vertically. The width of the guide groove 42 is adapted to the maximum vertical distance between the two snap-fit ​​pieces 34. The snap-fit ​​piece 34 and the guide groove 42 can slide together. The snap-fit ​​groove 41 is an arc-shaped groove that is adapted to the rotation trajectory of the snap-fit ​​piece 34. The width of the arc-shaped groove is greater than the width of the guide groove 42.

[0033] See Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the snap-fit ​​unit 3 includes a mounting groove 31 and an adjusting shaft 32 that slides horizontally within the mounting groove 31. The adjusting shaft 32 is provided with an elastic element 33. Both ends of the elastic element 33 along the vertical axis of the adjusting shaft 32 are connected to snap-fit ​​elements 34. The snap-fit ​​elements 34 can rotate downward along the outer circumference of the adjusting shaft 32. The insertion element 4 can pass through the mounting groove 31 and connect with the snap-fit ​​elements 34. The snap-fit ​​elements 34 can snap into the upper part of the insertion groove. The position of the snap-fit ​​elements 34 in the insertion groove along the axis parallel to the adjusting shaft 32 is adjustable.

[0034] The mounting structure of the snap-fit ​​component 34 and the adjusting shaft 32 is as follows: the snap-fit ​​component 34 is an elongated structure, with a through hole at one end that matches the adjusting shaft 32. The snap-fit ​​component 34 is rotatably connected to the adjusting shaft 32, and the end of the snap-fit ​​component 34 near the elastic element 33 is connected to the end of the elastic element 33. The maximum length of the two snap-fit ​​components 34 is not greater than the length along the horizontal direction inside the arc-shaped groove, which facilitates the two snap-fit ​​components 34 to extend within the arc-shaped groove and clamp and limit the upper housing 1.

[0035] In this embodiment, the elastic element 33 is a torsion spring, which is sleeved on the adjusting shaft 32. The middle part of the torsion spring is connected to the adjusting shaft 32 through a connecting structure. The connecting structure can be a connecting block or a welding point. The connecting structure is existing technology and is not shown in the figure. The connecting structure is used to fix the middle part of the torsion spring to the adjusting shaft 32 so that the torsion spring will not move along the axial direction of the adjusting shaft 32 and will not affect the torsion of the torsion spring under the action of external force.

[0036] Referring to Figure 7, when the upper housing 1 and lower housing 2 are not installed, the snap-fit ​​members 34 are positioned horizontally. This is the initial state of the snap-fit ​​members 34. The maximum length that the two snap-fit ​​members 34 can reach matches the maximum length of the upper part of the arc-shaped groove, facilitating the downward rotation of the two snap-fit ​​members 34 under the pressure of the insertion groove, and returning to the initial state in the arc-shaped groove, for quick connection of the upper housing 1 and lower housing 2. The two snap-fit ​​members 34 rotate downward under the action of the guide groove 42. The maximum vertical distance between the two snap-fit ​​members 34 along the axis of the adjusting shaft 32 is formed within the guide groove 42. This process is the installed state.

[0037] The thickness of the connector 4 and the width of the mounting groove 31 are both aligned with the axial direction of the adjusting shaft 32. The sum of the thickness of the connector 4 and the maximum vertical distance between the two snap-fit ​​pieces 34 along the axial direction of the adjusting shaft 32 is less than the width of the mounting groove 31, which provides reserved space for moving the two snap-fit ​​pieces 34 to one side and for the torsion spring to disengage from the connector groove.

[0038] The lower housing 2 has an elongated hole 21 on one side corresponding to the mounting groove 31. The adjusting shaft 32 passes through the elongated hole 21. The end of the adjusting shaft 32 located inside the lower housing 2 is provided with a baffle 35, and the end located outside the lower housing 2 is elastically connected to the lower housing 2 through a compression spring 36 sleeved on it.

[0039] In the above structure, when assembling the upper shell 1 and the lower shell 2, the plug-in component 4 passes through the mounting groove 31 and connects with the snap-fit ​​component 34, so that the two snap-fit ​​components 34 can rotate downward under the pressure of the side wall of the guide groove 42 of the plug-in component 4. The torsion spring undergoes elastic deformation, and the plug-in component 4 continues to move downward until the two snap-fit ​​components 34 move into the arc-shaped groove. The width of the arc-shaped groove is greater than the width of the guide groove 42, and the two snap-fit ​​components 34 can be reset under the action of the torsion spring. The two snap-fit ​​components 34 are horizontally set in the arc-shaped groove, and the two ends of the two snap-fit ​​components 34 can be snapped into the two sides inside the arc-shaped groove, so that the upper shell 1 is tightly covered on the lower shell 2 and cannot continue to move downward or upward. One side of the other plug-in component 4 is snapped into the corresponding snap-fit ​​component 34, realizing the rapid assembly of the upper shell 1 and the lower shell 2.

[0040] In this embodiment, when installing the upper housing 1 into the lower housing 2, the operator only needs to insert the connector 4 into the corresponding mounting slot 31; when removing the upper housing 1 and the lower housing 2, the operator only needs to push and pull the adjusting shaft 32 to one side respectively, so that the snap-fit ​​34 disengages from the arc-shaped groove of the connector slot, thereby realizing the quick disassembly and assembly of the upper housing 1 and the lower housing 2.

[0041] This utility model also includes an electricity meter, comprising an electricity meter housing and an electricity meter body. The electricity meter body is existing technology. The electricity meter body is installed inside the electricity meter housing, and the electricity meter housing protects the electrical components of the electricity meter body.

Claims

1. An electricity meter housing comprising an upper housing (1) and a lower housing (2), characterized in that, The upper end face of the lower housing (2) is symmetrically provided with snap-fit ​​units (3) on both sides, and the lower end face of the upper housing (1) is provided with a plug-in part (4) adapted to the snap-fit ​​unit (3), and the plug-in part (4) has a downward through-hole in the middle. The snap-fit ​​unit (3) includes a mounting groove (31) and an adjusting shaft (32) that slides horizontally within the mounting groove (31). The adjusting shaft (32) is provided with an elastic element (33). Both ends of the elastic element (33) along the vertical axis of the adjusting shaft (32) are connected to snap-fit ​​elements (34). The snap-fit ​​elements (34) can rotate downward along the outer circumference of the adjusting shaft (32). The plug-in element (4) can pass through the mounting groove (31) and connect to the snap-fit ​​element (34). The snap-fit ​​element (34) can snap into the upper part of the plug-in groove. The position of the snap-fit ​​element (34) in the plug-in groove is adjustable along the axial direction parallel to the adjusting shaft (32).

2. An electrical meter housing as defined in claim 1, wherein, The insertion slot includes a snap-fit ​​slot (41) and a guide slot (42) that are connected vertically. The width of the guide slot (42) is adapted to the maximum vertical distance between the two snap-fit ​​pieces (34). The snap-fit ​​pieces (34) and the guide slot (42) can slide together. The snap-fit ​​slot (41) is an arc-shaped slot, which is adapted to the rotation trajectory of the snap-fit ​​pieces (34). The width of the arc-shaped slot is greater than the width of the guide slot (42).

3. An electrical meter housing as defined in claim 1, wherein, One end of the snap-fit ​​member (34) is provided with a through hole that is adapted to the adjusting shaft (32). The snap-fit ​​member (34) is rotatably connected to the adjusting shaft (32). The snap-fit ​​member (34) is connected to the end of the elastic member (33) on the side near the elastic member (33).

4. An electrical meter housing as claimed in claim 3, wherein, The elastic element (33) is a torsion spring, which is sleeved on the adjusting shaft (32). The middle part of the torsion spring is connected to the adjusting shaft (32) through a connecting structure.

5. An electrical meter housing as claimed in claim 4, wherein, The snap-fit ​​member (34) is arranged in the horizontal direction, and the maximum length that the two snap-fit ​​members (34) can achieve is adapted to the maximum length of the upper part of the arc groove.

6. An electrical meter housing as defined in claim 1, wherein, The thickness of the connector (4) and the width of the mounting groove (31) are both consistent with the axial direction of the adjusting shaft (32). The sum of the thickness of the connector (4) and the maximum vertical distance between the two snap-fit ​​pieces (34) along the axial direction of the adjusting shaft (32) is less than the width of the mounting groove (31).

7. The meter housing of claim 1, wherein, The lower housing (2) has an elongated hole (21) on one side corresponding to the mounting groove (31). The adjusting shaft (32) passes through the elongated hole (21). The end of the adjusting shaft (32) located inside the lower housing (2) is provided with a baffle (35). The end located outside the lower housing (2) is elastically connected to the lower housing (2) through a compression spring (36) sleeved on it.

8. An electricity meter characterized by Includes the meter housing as described in any one of claims 1-7.

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