Anti-vibration electric energy meter

Abstract

The utility model discloses a vibration-proof electric energy meter, and relates to the technical field of electric energy meters. The electric energy meter comprises an electric energy meter body, the left end and the right end of the electric energy meter body are each fixedly provided with two installation lugs, each installation lug is internally provided with an installation hole, the inner wall of each installation hole is embedded with a damping piece, the back face of the electric energy meter body is fixedly provided with a damping plate, and the front face of the electric energy meter body is provided with a reset switch. In a normal use state, the external thread cylinder is screwed into the internal thread cylinder, so that the plurality of limiting blocks are uniformly distributed on the outer wall of the reset switch to form annular limiting, and the pressing block is blocked by the plurality of limiting blocks in the moving direction of the electric energy meter body, so that no matter the pressing block is mistakenly touched, impacted by foreign matters or accidentally touched due to external vibration, the pressing block cannot be damaged. Therefore, misoperation of the reset switch caused by accidental stress is thoroughly avoided from the physical level, and stable operation of a metering program of the electric energy meter is guaranteed.

Description

Technical Field

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

[0002] An electricity meter, also known as a kilowatt-hour meter, is an instrument used to measure electrical energy consumption. It is widely used in industrial, commercial, and residential electricity metering. Based on circuit type, it can be divided into DC and AC electricity meters. AC electricity meters are further classified by phase number: single-phase, three-phase three-wire, and three-phase four-wire. Modern electricity meters have evolved from traditional mechanical types to electronic, multi-functional, and intelligent models, possessing multiple functions such as time-of-use metering, remote communication, load control, and anti-theft features.

[0003] Reference publication number: CN219915742U discloses an energy meter with a switch anti-vibration function, including an energy meter body, a display screen, and a reset switch, and also includes an anti-vibration mechanism. The anti-vibration mechanism includes a socket, a rod, a support plate, a guide groove, a guide rod, an elastic band, and a surface patch. The display screen and the reset switch are embedded in the surface of the housing of the energy meter body, and the side of the reset switch housing has a through-hole for inserting the rod. An anti-vibration mechanism is provided between the energy meter body and its own reset switch. The anti-vibration mechanism provides a support structure at the reset switch. When the reset switch is subjected to external vibration pressure, the support plate of the anti-vibration mechanism supports the reset switch at the energy meter body with the rod and will not be pressed down by the vibration pressure, thereby avoiding the reset switch from being falsely reset by the vibration pressure at the energy meter body, and effectively preventing the energy meter body from being affected by external vibration pressure on the reset switch.

[0004] The aforementioned patent describes a mechanism where a rod is inserted into the socket of a reset switch and secured. Simultaneously, the surface edge of the rod follows and is pushed into the guide groove for high-friction insertion. This prevents the reset switch from being pressed down by vibration, thus avoiding accidental reset at the meter body. However, in a long-term vibrating environment, continuous vibration weakens the frictional fastening effect, eventually causing the guide rod to detach from the guide groove and the rod to exit the reset switch socket. This renders the anti-vibration mechanism's limiting effect on the reset switch completely ineffective, leaving the reset switch vulnerable to accidental reset due to vibration. Therefore, long-term stable anti-vibration protection is difficult to achieve.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a vibration-resistant energy meter to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a vibration-resistant energy meter, including an energy meter body. Two mounting ears are fixedly installed at both the left and right ends of the energy meter body. Each mounting ear has a mounting hole inside. A shock-absorbing component is embedded in the inner wall of the mounting hole. A shock-absorbing plate is fixedly installed on the back of the energy meter body.

[0009] A reset switch is provided on the front of the energy meter body, a pressing block is fixedly installed on the front of the reset switch, and a connecting cylinder is fixedly installed on the front of the energy meter body and around the reset switch.

[0010] A plurality of limiting mechanisms are slidably mounted on the connecting cylinder. Each limiting mechanism includes a limiting block. A sliding rod is fixedly mounted on the outer wall of the limiting block. An abutting block is fixedly mounted on the end of the sliding rod away from the limiting block. A spring is sleeved on the sliding rod. The outer edge of the front of the limiting block is beveled.

[0011] An internally threaded cylinder is fixedly installed on the front of the energy meter body and around the connecting cylinder.

[0012] The internal threaded cylinder is threaded with a sealing mechanism on its front side. The sealing mechanism includes a drive cylinder. One end of the drive cylinder has a chamfered inner wall on its back side. The drive cylinder slides in conjunction with the limiting block.

[0013] Furthermore, the slide bar passes through the internally threaded cylinder and extends to its outside, one end of the spring is fixedly installed to the outer wall of the internally threaded cylinder, and the end of the spring away from the internally threaded cylinder is fixedly installed to the abutment block.

[0014] Furthermore, a sliding groove is provided inside the connecting cylinder, and the limiting block is located inside the sliding groove.

[0015] Furthermore, the diameter of the reset switch is smaller than the diameter of the pressing block.

[0016] Furthermore, the sealing mechanism also includes a rotating head, the drive cylinder is installed on the back of the rotating head, and several anti-slip strips are fixedly installed on the outer wall of the rotating head.

[0017] Furthermore, an external threaded cylinder is fixedly installed on the back of the rotating head and around the drive cylinder, and the external threaded cylinder is threadedly installed with the internal threaded cylinder.

[0018] Furthermore, a rope is installed on the front of the rotating head, and the end of the rope away from the rotating head is fixedly installed on the electricity meter body.

[0019] This utility model has the following beneficial effects:

[0020] In normal use, the external threaded cylinder is screwed into the internal threaded cylinder, so that several limiting blocks are evenly distributed on the outer wall of the reset switch to form a ring-shaped limit. The pressing block is blocked by several limiting blocks in the direction of movement of the energy meter body. Whether it is accidental contact caused by external vibration, impact of foreign objects, or unintentional touch, the pressing block cannot be pushed. Thus, from a physical perspective, the reset switch is completely prevented from malfunctioning due to accidental force, ensuring the stable operation of the energy meter's metering program.

[0021] This utility model uses four shock-absorbing components on the mounting ears to form a buffer layer between the fastener and the mounting hole, which weakens the force of vibration transmitted to the electricity meter body through the fastener. In addition, the shock-absorbing plate fixed to the back of the electricity meter body further absorbs the vibration transmitted from the support surface, reducing the impact of vibration on the internal metering elements and electronic components of the electricity meter, and ensuring the stability of the metering accuracy.

[0022] This invention uses a rotating head to seal the internal threaded cylinder, thereby enclosing the reset switch in a sealed space within the internal threaded cylinder and the rotating head. This effectively isolates the reset switch from contact with impurities such as moisture, dust, and corrosive gases in the outside air, reducing oxidation and rust caused by environmental factors.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the back of the present invention;

[0027] Figure 3 This is a schematic diagram of the first partial structure of the present invention;

[0028] Figure 4 This is an exploded view of the shock absorber of this utility model;

[0029] Figure 5 This is an exploded view of the sealing mechanism of this utility model;

[0030] Figure 6 This is a partial sectional view of the sealing mechanism of this utility model;

[0031] Figure 7 This is a schematic diagram of the second partial structure of the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Electricity meter body; 2. Mounting ear; 201. Mounting hole; 3. Shock absorber; 4. Shock absorber plate; 5. Reset switch; 6. Pressing block; 7. Connecting cylinder; 8. Limiting mechanism; 801. Limiting block; 802. Slide rod; 803. Abutment block; 804. Spring; 9. Internal threaded cylinder; 10. Sealing mechanism; 1001. Drive cylinder; 1002. Rotating head; 1003. Anti-slip strip; 1004. External threaded cylinder; 11. Rope. Detailed Implementation

[0034] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0035] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0036] Please see Figures 1-7 As shown, this utility model is a vibration-proof energy meter, including an energy meter body 1. Two mounting ears 2 are fixedly installed at both the left and right ends of the energy meter body 1. Each mounting ear 2 has a mounting hole 201 inside. A shock-absorbing component 3 is embedded in the inner wall of the mounting hole 201. A shock-absorbing plate 4 is fixedly installed on the back of the energy meter body 1.

[0037] A reset switch 5 is provided on the front of the energy meter body 1. A pressing block 6 is fixedly installed on the front of the reset switch 5. A connecting cylinder 7 is fixedly installed on the front of the energy meter body 1 and around the reset switch 5.

[0038] A plurality of limiting mechanisms 8 are slidably installed on the connecting cylinder 7. Each limiting mechanism 8 includes a limiting block 801. A sliding rod 802 is fixedly installed on the outer wall of the limiting block 801. An abutting block 803 is fixedly installed at one end of the sliding rod 802 away from the limiting block 801. A spring 804 is sleeved on the sliding rod 802. The outer edge of the front of the limiting block 801 is beveled.

[0039] An internally threaded cylinder 9 is fixedly installed on the front of the electricity meter body 1 and around the connecting cylinder 7.

[0040] The internal threaded cylinder 9 is threaded with a sealing mechanism 10 on its front side. The sealing mechanism 10 includes a drive cylinder 1001. The inner wall of the back side of one end of the drive cylinder 1001 is chamfered. The drive cylinder 1001 is slidably engaged with the limiting block 801.

[0041] The slide bar 802 passes through the internal threaded cylinder 9 and extends to its outside. One end of the spring 804 is fixedly installed on the outer wall of the internal threaded cylinder 9, and the end of the spring 804 away from the internal threaded cylinder 9 is fixedly installed on the abutment block 803.

[0042] The sealing mechanism 10 also includes a rotating head 1002, the driving cylinder 1001 is installed on the back of the rotating head 1002, and a plurality of anti-slip strips 1003 are fixedly installed on the outer wall of the rotating head 1002.

[0043] An external threaded cylinder 1004 is fixedly installed on the back of the rotating head 1002 and around the drive cylinder 1001. The external threaded cylinder 1004 is threadedly installed with the internal threaded cylinder 9.

[0044] Working principle: The electricity meter body 1 is installed on the distribution box, wall or other supporting structure through two mounting ears 2 on each of the left and right ends. During installation, screws and other fasteners are passed through the shock absorbers 3 on the inner wall of the mounting hole 201 to lock the electricity meter body 1 to the distribution box, wall or other supporting structure. The shock absorbers 3 (preferably made of elastic materials such as rubber or silicone) embedded in the inner wall of the mounting hole 201 form a buffer layer between the fastener and the mounting hole 201. When the external environment vibrates, the shock absorbers 3 can absorb part of the vibration energy through their own elastic deformation, weakening the force of the vibration transmitted to the electricity meter body 1 through the fastener. In addition, the shock absorber 4 (preferably made of elastic materials such as rubber or silicone) fixed on the back of the electricity meter body 1 is in direct contact with the mounting support surface, further absorbing the vibration transmitted by the support surface, reducing the impact of vibration on the internal metering elements and electronic components of the electricity meter, and ensuring the stability of the metering accuracy.

[0045] Under normal use, the external threaded cylinder 1004 is screwed into the internal threaded cylinder 9, and the drive cylinder 1001 is in contact with several limiting blocks 801. By applying an inward force through the oblique angle, the several limiting blocks 801 are evenly distributed on the outer wall of the reset switch 5 to form a ring-shaped limit. At this time, the limiting blocks 801 also compress the spring 804 through the slide rod 802 and the abutment block 803, storing elastic potential energy. Then, the pressing block 6 is blocked by several limiting blocks 801 in the direction of movement of the energy meter body 1. Whether it is accidental contact caused by external vibration, impact of foreign objects, or unintentional contact, it is impossible to push the pressing block 6, thereby completely avoiding the reset switch 5 from malfunction due to accidental force from a physical perspective, and ensuring the stable operation of the energy meter metering program.

[0046] When the reset switch 5 needs to be operated actively, the operator applies rotational force by rotating the anti-slip strip 1003 on the outer wall of the rotating head 1002. Since the external threaded cylinder 1004 on the back of the rotating head 1002 is threadedly connected to the internal threaded cylinder 9 on the energy meter body 1, the rotational force is converted into axial movement force, which drives the drive cylinder 1001 to move slowly away from the energy meter body 1. As the drive cylinder 1001 moves gradually, its pushing force on the limit block 801 gradually weakens until it disappears. At this time, the elastic potential energy of the spring 804 is gradually released. Each spring 804 pulls the abutment block 803 connected to it, and drives the limit block 801 to slide away from the outer wall of the reset switch 5 through the slide rod 802. When the limit block 801 completely exits the outer area of ​​the pressing block 6, the limit is completely released, and the operator can directly press the pressing block 6 to trigger the reset switch 5 to perform the reset function. It should be noted that the diameter of the connecting cylinder 7 is much larger than the diameter of the operator's finger and will not hinder the pressing of the reset switch 5 with the finger.

[0047] After the reset operation is completed, the anti-accidental touch function needs to be restored. At this time, the rotating head 1002 is rotated in the reverse direction. The threaded engagement between the external threaded cylinder 1004 and the internal threaded cylinder 9 causes the drive cylinder 1001 to move closer to the energy meter body 1. The bevel on the back of the drive cylinder 1001 contacts the bevel on the front of the limit block 801 again and produces relative sliding. As the drive cylinder 1001 continues to advance, the guiding effect of the bevel forces several limit blocks 801 to overcome the elastic force of their respective upper springs 804, and through the slide rod 802, drive the abutment block 803 to move closer to the outer wall of the reset switch 5, until the limit block 801 re-fits the outer wall of the reset switch 5, forming a limit. At this point, the spring 804 is compressed again, storing elastic potential energy. The drive cylinder 1001 and the limit block 801 remain stably attached, and the entire structure returns to the normal anti-accidental contact state, ensuring that the reset switch 5 is always in a safe protection state during non-operation periods. At the same time, the rotating head 1002 is also attached to the end of the internal threaded cylinder 9, using the rotating head 1002 to seal the internal threaded cylinder 9. Thus, the reset switch 5 is enclosed in a sealed space by the internal threaded cylinder 9 and the rotating head 1002, effectively isolating the reset switch 5 from contact with water vapor, dust, corrosive gases and other impurities in the outside air, reducing the oxidation and rust of the reset switch 5 caused by environmental factors.

[0048] In one embodiment, the connecting cylinder 7 is provided with a sliding groove, and the limiting block 801 is located in the sliding groove.

[0049] When the limit block 801 moves, the sliding groove can provide guidance for the limit block 801.

[0050] In one embodiment, the diameter of the reset switch 5 is smaller than the diameter of the pressing block 6.

[0051] When the limit blocks 801 are on the outer wall of the reset switch 5, the limit blocks 801 can block the pressing block 6 from moving in the direction of the energy meter body 1, so as to prevent the reset switch 5 from malfunctioning due to accidental force.

[0052] In one embodiment, for the aforementioned rotating head 1002, a rope 11 is mounted on the front side of the rotating head 1002, and one end of the rope 11 away from the rotating head 1002 is fixedly mounted on the electricity meter body 1.

[0053] In the normal anti-accidental-touch state, the rope 11 remains naturally slack with the rotating head 1002, with one end fixed to the front of the rotating head 1002 and the other end fixed to the energy meter body 1. When the reset switch 5 needs to be triggered, the rotating head 1002 and the external threaded cylinder 1004 are unscrewed from the internal threaded cylinder 9. The rope 11 is to prevent the rotating head 1002 from being lost and to prevent the sealing mechanism 10 from falling off and being lost as a whole.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vibration-resistant energy meter, comprising an energy meter body (1), characterized in that: Two mounting ears (2) are fixedly installed on both the left and right ends of the power meter body (1). Each mounting ear (2) has a mounting hole (201) inside. A shock-absorbing component (3) is embedded in the inner wall of the mounting hole (201). A shock-absorbing plate (4) is fixedly installed on the back of the power meter body (1). The power meter body (1) has a reset switch (5) on the front, a pressing block (6) is fixedly installed on the front of the reset switch (5), and a connecting cylinder (7) is fixedly installed on the front of the power meter body (1) and around the reset switch (5). A plurality of limiting mechanisms (8) are slidably installed on the connecting cylinder (7). The limiting mechanism (8) includes a limiting block (801). A sliding rod (802) is fixedly installed on the outer wall of the limiting block (801). An abutting block (803) is fixedly installed at the end of the sliding rod (802) away from the limiting block (801). A spring (804) is sleeved on the sliding rod (802). The outer edge of the front of the limiting block (801) is beveled. An internally threaded cylinder (9) is fixedly installed on the front of the main body (1) of the electricity meter and on the periphery of the connecting cylinder (7). The internal threaded cylinder (9) is threaded with a sealing mechanism (10) on its front side. The sealing mechanism (10) includes a drive cylinder (1001). One end of the drive cylinder (1001) has a chamfered inner wall on its back side. The drive cylinder (1001) is slidably engaged with the limiting block (801).

2. The shockproof energy meter according to claim 1, characterized in that, The slide bar (802) passes through the internal threaded cylinder (9) and extends to its outside. One end of the spring (804) is fixedly installed on the outer wall of the internal threaded cylinder (9), and the other end of the spring (804) away from the internal threaded cylinder (9) is fixedly installed on the abutment block (803).

3. The vibration-resistant energy meter according to claim 1, characterized in that, The connecting cylinder (7) has a sliding groove, and the limiting block (801) is located in the sliding groove.

4. A vibration-resistant energy meter according to claim 1, characterized in that, The diameter of the reset switch (5) is smaller than the diameter of the pressing block (6).

5. A vibration-resistant energy meter according to claim 1, characterized in that, The sealing mechanism (10) also includes a rotating head (1002), the driving cylinder (1001) is installed on the back of the rotating head (1002), and a number of anti-slip strips (1003) are fixedly installed on the outer wall of the rotating head (1002).

6. A vibration-resistant energy meter according to claim 5, characterized in that, An external threaded cylinder (1004) is fixedly installed on the back of the rotating head (1002) and around the drive cylinder (1001). The external threaded cylinder (1004) is threadedly installed with the internal threaded cylinder (9).

7. A vibration-resistant energy meter according to claim 5, characterized in that, A rope (11) is mounted on the front of the rotating head (1002), and one end of the rope (11) away from the rotating head (1002) is fixedly mounted on the electricity meter body (1).

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