Shell fixing structure of electric energy meter

Abstract

The utility model discloses a housing fixing structure of an electric energy meter, comprising a meter cover provided with a through hole; the bottom shell is provided with a bayonet plate, and the bayonet plate penetrates through the through hole; one of the bayonet plate and the inner side of the side wall of the meter cover is provided with a clamping hook groove, and the other one of the bayonet plate and the inner side of the side wall of the meter cover is provided with a clamping hook protrusion matched with the clamping hook groove. And when the connecting part is positioned on the inner side of the side wall of the meter cover, the outer side of the whole shell has no buckle connecting part, so that the capacity of preventing the electric energy meter from being disassembled privately is improved, and the safe and reliable operation of the product is ensured.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to a shell fixing structure of an electric energy meter. Background Art

[0002] The electric energy meter is used for measuring electric energy. The electric energy meter includes a meter cover and a bottom shell. In the prior art, the connection and fixing effect between the meter cover and the bottom shell is achieved by screws. However, this kind of fixing structure requires tools to achieve fixation; there is also a structure that achieves fixation between the meter cover and the bottom shell by connecting and fixing with a buckle. There is also a connection and fixing effect achieved by combining a buckle with a screw. For example, the Chinese utility model patent, with the announcement number CN206020484U, and the patent name is "A 4P single-phase guide rail type electric energy meter", which discloses that the upper box assembly and one side of the bottom box are connected by screws, and the other side of the upper box assembly and the bottom box are connected by combining a buckle and a slot.

[0003] Regardless of whether it is a single snap-on connection and fixing method or a combination of snaps and screws to achieve connection and fixing, the connection points of the snap-on fixing solution are located on the left and right side walls of the shell, causing the shell to be directly contacted and disassembled at will, thereby touching the inside of the electric energy meter, which may affect the normal operation of the meter and pose certain electrical hazards. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is how to prevent the shell from being disassembled. To this end, a shell fixing structure of an electric energy meter includes:

[0005] A watch cover, wherein the watch cover is provided with a through hole;

[0006] A bottom shell, wherein the bottom shell is provided with a bayonet plate, and the bayonet plate passes through the through hole;

[0007] One of the bayonet plate and the inner side of the side wall of the cover is provided with a hook groove, and the other of the bayonet plate and the inner side of the side wall of the cover is provided with a hook protrusion matched with the hook groove.

[0008] The hook groove is located on the bayonet plate, and the through hole is adapted to the bayonet plate.

[0009] A first guide surface is provided at the top end of the bayonet plate, and the first guide surface extends toward the top surface of the groove.

[0010] A groove is provided on the inner side of the side wall of the cover, the hook protrusion is located in the groove, and the bayonet plate extends to the groove.

[0011] The hook protrusion is provided with a second guide surface, and the second guide surface cooperates with the hook groove.

[0012] The hook protrusion is provided with a contact surface, and the contact surface abuts against the hook groove.

[0013] The hook protrusion does not extend beyond the inner side surface of the side wall of the cover.

[0014] It also includes a first cover plate and a second cover plate. The cover is provided with a first cavity matched with the first cover plate and a second cavity matched with the second cover plate. The hook protrusion or the hook groove is accommodated in the first cavity and the second cavity.

[0015] The number of the hook protrusions or the hook grooves is four, and the hook protrusions or the hook grooves are respectively accommodated in the first cavity and the second cavity in groups of two.

[0016] The first cover plate is rotatably connected to the surface cover and the first cover plate closes the first chamber; the second cover plate is rotatably connected to the surface cover and the second cover plate closes the second chamber.

[0017] The technical solution of the utility model has the following advantages:

[0018] 1. The utility model provides a shell fixing structure for an electric energy meter. When the connection is located on the inner side of the side wall of the meter cover, there is no snap connection on the outer side of the entire shell, which improves the ability of the electric energy meter to prevent unauthorized disassembly and ensures the safe and reliable operation of the product.

[0019] 2. The utility model provides a shell fixing structure for an electric energy meter, wherein the hook groove is located on the bayonet plate, thereby reducing the thickness of the bayonet plate and the width of the through hole, which is more conducive to the layout on the meter cover.

[0020] 3. The utility model provides a housing fixing structure for an electric energy meter. The setting of the first guide surface enables the bayonet plate to better cooperate with the meter cover to form a guiding and fixing effect.

[0021] 4. The utility model provides a casing fixing structure for an electric energy meter, and the setting of the groove forms a yielding design, thereby ensuring a connection and fixing effect between the hook protrusion and the hook groove without affecting the structure of the meter cover itself.

[0022] 5. The utility model provides a casing fixing structure for an electric energy meter, wherein the second guide surface also achieves a guiding effect.

[0023] 6. The utility model provides a shell fixing structure for an electric energy meter, and the setting of the contact surface improves the overall fixing effect and prevents it from falling off.

[0024] 7. The utility model provides a casing fixing structure for an electric energy meter, and the limitation of the hook protrusion will not affect the structure of the meter cover itself.

[0025] 8. The utility model provides a shell fixing structure for an electric energy meter, in which the snap-fit ​​position is set below the first cover plate and the second cover plate, and cannot be directly touched or disassembled under the protection of the cover plate, which greatly improves the ability of the electric energy meter to prevent unauthorized disassembly and ensures the safe and reliable operation of the product.

[0026] 9. The utility model provides a shell fixing structure for an electric energy meter, and the fixing structures at the four corners make the entire shell fix more firmly and stably.

[0027] 10. The utility model provides a housing fixing structure of an electric energy meter, which is connected in a rotating manner to prevent the first cover plate and the second cover plate from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a housing fixing structure of an electric energy meter provided by the utility model;

[0030] Figure 2 A schematic diagram of the partial structure of a housing fixing structure of an electric energy meter provided by the utility model;

[0031] Figure 3 A schematic diagram of the structure of the watch cover provided by the utility model;

[0032] Figure 4 for Figure 3 A partial enlarged view of the middle A part;

[0033] Figure 5 A top view of the watch cover provided by the utility model;

[0034] Figure 6 This is a structural schematic diagram of the bottom shell provided by the utility model.

[0035] Description of reference numerals:

[0036] 11. Watch cover; 12. Bottom shell; 13. Bayonet plate; 14. Hook groove; 15. Hook protrusion; 16. First cover plate; 17. Second cover plate; 111. Through hole; 112. Groove; 113. First chamber; 114. Second chamber; 131. First guide surface; 151. Second guide surface; 152. Contact surface; 153. Vertical plane. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] This embodiment provides a housing fixing structure of an electric energy meter, as shown in the attached Figure 1-6 As shown, including:

[0043] The watch cover 11 is provided with a through hole 111. Here, the through hole 111 passes through the bottom surface of the watch cover 11. The size of the through hole 111 can be adjusted according to actual needs. In this embodiment, the through hole 111 is described only by taking a rectangular hole as an example.

[0044] The bottom shell 12 is provided with a bayonet plate 13 , and the bayonet plate 13 passes through the through hole 111 . When the bottom shell 12 is matched with the surface cover 11 , the bayonet plate 13 passes through the through hole 111 and extends to the surface cover 11 .

[0045] One of the bayonet plate 13 and the inner side of the side wall of the meter cover 11 is provided with a hook groove 14, and the other of the bayonet plate 13 and the inner side of the side wall of the meter cover 11 is provided with a hook protrusion 15 that cooperates with the hook groove 14. When the connection is located on the inner side of the side wall of the meter cover 11, there is no buckle connection on the outer side of the entire shell, which improves the ability of the electric energy meter to prevent unauthorized disassembly and ensures the safe and reliable operation of the product. When the bayonet plate 13 is provided with a hook groove 14, the inner side of the side wall of the meter cover 11 is provided with a hook protrusion 15; conversely, when the bayonet plate 13 is provided with a hook protrusion 15, the inner side of the side wall of the meter cover 11 is provided with a hook groove 14.

[0046] Specifically, as attached Figure 2-4 As shown in FIGS. 6 and 7 , the hook groove 14 is located on the bayonet plate 13. Here, the hook groove 14 is specifically located where the bayonet plate 13 extends to one end of the watch cover 11. At this time, the thickness of the bayonet plate 13 can be consistent from top to bottom, or it can be gradually reduced from one end of the bottom shell 12 to the top. The through hole 111 is adapted to the bayonet plate 13. At this time, the through hole 111 is adapted to the cross section of the bayonet plate 13. The hook groove 14 is located on the bayonet plate 13, which reduces the thickness of the bayonet plate 13 and the width of the through hole 111, which is more conducive to the layout on the watch cover 11. In addition, the hook groove 14 can also be located on the inner side of the side wall of the watch cover 11, but it should be noted that the hook groove 14 cannot horizontally penetrate the side wall of the watch cover 11, and because the hook protrusion 15 is located on the bayonet plate 13, the thickness of the bayonet plate 13 will increase, and the width of the through hole 111 will also increase.

[0047] Specifically, as attached Figure 6 As shown, a first guide surface 131 is provided at the top of the bayonet plate 13. The first guide surface 131 is provided so that the bayonet plate 13 can better cooperate with the watch cover 11, thereby forming a guiding and fixing effect. The first guide surface 131 can be an inclined surface or an arc surface, so that the bayonet plate 13 can better pass through the through hole 111 and cooperate with the hook protrusion 15. Here, the first guide surface 131 passes through the through hole 111, slides on the outer surface of the hook protrusion 15, and finally passes over the hook protrusion 15.

[0048] Specifically, as attached Figure 3-4 As shown, a groove 112 is provided on the inner side of the side wall of the watch cover 11, where the groove 112 opens toward one side of the inner side of the watch cover 11, and the groove 112 is connected to the through hole 111. The groove 112 will not penetrate the side wall of the watch cover 11, so the outer side of the side wall of the watch cover 11 is solid. The hook protrusion 15 is located in the groove 112. The setting of the groove 112 forms a yielding design to ensure that the connection and fixing effect between the hook protrusion 15 and the hook groove 14 is formed without affecting the structure of the watch cover 11 itself. The bayonet plate 13 extends into the groove 112 for fixing. At this time, the first guide surface 131 is close to the top surface of the groove 112, and the first guide surface 131 can also be against the top surface of the groove 112.

[0049] Specifically, as attached Figure 3-4 As shown, the groove 112 does not penetrate the top surface of the side wall of the watch cover 11, and the groove 112 forms a certain limiting effect. Here, the top surface of the groove 112 cooperates with the first guide surface 131 to form a limiting effect. When the hook protrusion 15 cooperates with the hook groove 14, there can be a certain gap between the first guide surface 131 and the top surface of the groove 112, or the first guide surface 131 and the top surface of the groove 112 can be against each other to form a further fixing effect.

[0050] Specifically, as attached Figure 3-4 As shown, the hook protrusion 15 is provided with a second guide surface 151. When the hook protrusion 15 is located on the watch cover 11, the second guide surface 151 is located on the lower end of the hook protrusion 15. The second guide surface 151 can be an inclined surface or an arc surface. The second guide surface 151 is used to cooperate with the first guide surface 131 to form a guiding effect. When the hook protrusion 15 cooperates with the hook groove 14, the second guide surface 151 is accommodated in the hook groove 14.

[0051] Specifically, as attached Figure 3-4 As shown, the hook protrusion 15 is provided with a contact surface 152. When the hook protrusion 15 is located on the watch cover 11, the contact surface 152 is located on the upper end of the hook protrusion 15. The contact surface 152 is specifically the top surface of the hook protrusion 15. When the hook protrusion 15 is fixed with the hook groove 14, the contact surface 152 abuts against the top surface of the hook groove 14. The provision of the contact surface 152 improves the overall fixing effect and prevents it from falling off. Here, the contact surface 152 is specifically a plane. Therefore, the cross-section of the hook protrusion 15 forms a right-angled trapezoidal structure, the second guide surface 151 is located at the bottom, and the side close to the center of the watch cover 11 is a vertical plane 153, one end of the vertical plane 153 is connected to the second guide surface 151, and the other end of the vertical plane 153 is connected to the contact surface 152.

[0052] Specifically, as attached Figure 5 As shown, the hook protrusion 15 does not extend beyond the inner side surface of the side wall of the watch cover 11. Since the hook protrusion 15 is located in the groove 112, and the groove 112 is located in the side wall of the watch cover 11, the groove 112 forms an embedded effect. At this time, the inner side surface of the groove 112 forms a step with the inner side surface of the side wall of the watch cover 11. The limitation of the hook protrusion 15 will not affect the structure of the watch cover 11 itself. The hook protrusion 15 can be flush with the inner side surface of the side wall of the watch cover 11, or it can be lower than the inner side surface of the watch cover 11. Specifically, the vertical plane 153 can be flush with the inner side surface of the side wall of the watch cover 11, or it can be lower than the inner side surface of the watch cover 11.

[0053] Specifically, as attached Figure 1-3As shown, the meter cover 11 is provided with a first chamber 113 cooperating with the first cover 16 and a second chamber 114 cooperating with the second cover 17. The first cover 16 closes the first chamber 113, where the first chamber 113 is located above the meter cover 11 for wiring. The second cover 17 closes the second chamber 114, where the second chamber is located below the meter cover 11 for wiring. In this embodiment, the shell forms an effect of upper and lower wiring, which can be considered as a wiring structure with upper inlet and lower outlet. The hook protrusion 15 or the hook groove 14 is accommodated in the first chamber 113 and the second chamber 114. The buckle position is arranged below the first cover 16 and the second cover 17, and cannot be directly touched or disassembled under the protection of the cover, which greatly improves the ability of the electric energy meter to prevent unauthorized disassembly and ensures the safe and reliable operation of the product. Specifically, the hook protrusion 15 is accommodated in the first chamber 113 and the second chamber 114.

[0054] Specifically, there are four hook protrusions 15 or hook grooves 14, and the hook protrusions 15 or hook grooves 14 are respectively accommodated in the first chamber 113 and the second chamber 114 in groups of two. The fixing structure of the four corners makes the fixing of the entire shell more firm and stable. In this embodiment, there are four hook protrusions 15, and one hook protrusion 15 is respectively provided on the inner side of the left and right side walls of the first chamber 113, and one hook protrusion 15 is respectively provided on the inner side of the left and right side walls of the second chamber 114. Since the first chamber 113 and the second chamber 114 are arranged up and down, a distribution of four corners is formed, thereby improving the overall fixing strength.

[0055] Specifically, the first cover plate 16 is rotatably connected to the surface cover 11, and the second cover plate 17 is rotatably connected to the surface cover 11. The rotatably connected manner prevents the first cover plate 16 and the second cover plate 17 from falling off.

[0056] Specifically, the first cover plate 16 is connected and fixed to the bottom shell 12 through a seal structure, and the second cover plate 17 is also connected and fixed to the bottom shell 12 through a seal structure, thereby forming a double protection effect. When it is necessary to disassemble the watch, the seal must be destroyed first before the hook groove 14 and the hook protrusion 15 can be disassembled.

[0057] Specifically, in this embodiment, the number of hook grooves 14 and hook protrusions 15 can be adjusted according to actual needs. There can be multiple hook grooves 14 and hook protrusions 15 to achieve full snap connection, or there can be snap connection combined with screws to form a connection and fixing effect between the cover 11 and the bottom shell 12.

[0058] Specifically, when the cover 11 and the bottom shell 12 are connected and fixed, the outer side of the side wall of the cover 11 and the outer side of the side wall of the bottom shell 12 are arranged in the same plane, so that the overall aesthetics is improved.

[0059] In addition, the structure inside the housing is irrelevant to this embodiment and will not be described in detail.

[0060] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A housing fixing structure of an electric energy meter, characterized in that: include: A meter cover (11), wherein the meter cover (11) is provided with a through hole (111); A bottom shell (12), wherein the bottom shell (12) is provided with a bayonet plate (13), and the bayonet plate (13) passes through the through hole (111); One of the bayonet plate (13) and the inner side of the side wall of the cover (11) is provided with a hook groove (14), and the other of the bayonet plate (13) and the inner side of the side wall of the cover (11) is provided with a hook protrusion (15) that cooperates with the hook groove (14).

2. The housing fixing structure of the electric energy meter according to claim 1, characterized in that: The hook groove (14) is located on the bayonet plate (13), and the through hole (111) is adapted to the bayonet plate (13).

3. The housing fixing structure of the electric energy meter according to claim 1, characterized in that: A groove (112) is provided on the inner side of the side wall of the watch cover (11), the hook protrusion (15) is located in the groove (112), and the bayonet plate (13) extends to the groove (112).

4. The housing fixing structure of the electric energy meter according to claim 3, characterized in that: A first guide surface (131) is provided at the top end of the bayonet plate (13), and the first guide surface (131) extends toward the top surface of the groove (112).

5. The housing fixing structure of the electric energy meter according to claim 4, characterized in that: The hook protrusion (15) is provided with a second guide surface (151), and the second guide surface (151) cooperates with the hook groove (14).

6. The housing fixing structure of the electric energy meter according to claim 5, characterized in that: The hook protrusion (15) is provided with a contact surface (152), and the contact surface (152) abuts against the hook groove (14).

7. The housing fixing structure of the electric energy meter according to claim 4, 5 or 6, characterized in that: The hook protrusion (15) does not extend beyond the inner side surface of the side wall of the cover (11).

8. The housing fixing structure of the electric energy meter according to claim 1, characterized in that: The surface cover (11) further comprises a first cover plate (16) and a second cover plate (17); the surface cover (11) is provided with a first chamber (113) cooperating with the first cover plate (16) and a second chamber (114) cooperating with the second cover plate (17); the hook protrusion (15) or the hook groove (14) is accommodated in the first chamber (113) and the second chamber (114).

9. The housing fixing structure of the electric energy meter according to claim 8, characterized in that: The number of the hook protrusions (15) or the hook grooves (14) is four, and the hook protrusions (15) or the hook grooves (14) are respectively accommodated in the first chamber (113) and the second chamber (114) in groups of two.

10. The housing fixing structure of the electric energy meter according to claim 8 or 9, characterized in that: The first cover plate (16) is rotatably connected to the surface cover (11), and the first cover plate (16) closes the first chamber (113); the second cover plate (17) is rotatably connected to the surface cover (11), and the second cover plate (17) closes the second chamber (114).

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