Guide rail type ammeter

Abstract

The utility model discloses a guide rail type ammeter, comprising a housing and a flip cover, the front surface of the housing is provided with an accommodating groove used for accommodating a functional area to be covered, one end of the flip cover is rotatably connected with one end of the accommodating groove, the other end of the flip cover is provided with a clamping structure, and the other end of the accommodating groove is provided with a projection matched and fixed with the clamping structure. When the clamping structure and the protruding block are fixed in a matched mode, the turning cover is used for covering the functional area to be covered, and when the clamping structure and the protruding block are unfixed in a matched mode, the turning cover horizontally turns over relative to the shell so that the covering functional area can be exposed. According to the utility model, through the clamping structure, the flip cover can cover the functional area to be covered, and the flip cover is covered in the accommodating groove. Due to the fact that the turning cover is opened in a rotating mode in the horizontal mode, when the left end of the turning cover rotates around the second rotating shaft, the opening angle can be within the set range by forming the avoiding groove, and therefore the function area to be covered can be well exposed within the view field of operators.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to a guide rail type electric energy meter. Background Art

[0002] An energy meter is an instrument for measuring electrical energy. It is commonly used to measure electricity consumption in homes, industries, and commercial places. It calculates electricity consumption by accumulating the amount of electricity in each electrical cycle and multiplies the accumulated amount by the electricity rate to obtain the electricity bill. The energy meter is usually installed in a meter box or meter box and connected to the circuit.

[0003] In the related art, some electric meters are provided with a flip cover structure that can be flipped over; when operating the electric meter, the flip cover needs to be flipped open to expose the functional area on the electric meter that was originally covered by the flip cover. For example, when wiring the electric meter, the flip cover covering the wiring terminal needs to be flipped open so as to wire the wiring on the wiring terminal. However, in order to facilitate the flipping operation, the flip cover is mostly flipped up and down, and only a little force is required to open the flip cover, and after the wiring is completed, the flip cover can be gently closed.

[0004] There are two types of flipping methods: one is to flip the cover upward with the upper end of the cover as the rotation point, and when the cover is closed, just push the cover downward to close it. This method mostly uses the gravity of the cover itself as friction to keep the cover closed (there are also cases where fasteners are used for fixing, but they are relatively rare). The disadvantage is that the cover is easy to open when subjected to external forces such as vibration. The other method is to flip the cover downward with the bottom end of the cover as the rotation point, and when the cover is closed, just push the cover upward to close it. This method is easy to open after closing due to the gravity of the upper end of the cover, so fasteners (such as screws) are generally used to fix the upper end of the cover to keep the cover closed. The disadvantage of this method is that the fasteners need to be disassembled or installed whether the cover is opened or closed, which affects the work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a guide rail type electric meter to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A guide rail type electric meter, comprising:

[0008] A housing, wherein a front side of the housing is provided with a receiving groove for receiving the functional area to be covered;

[0009] A flip cover, one end of which is rotatably connected to one end of the receiving slot, the other end of which has a snap-fit ​​structure, and the other end of the receiving slot has a protrusion that cooperates and is fixed with the snap-fit ​​structure;

[0010] When the clamping structure is fixed with the protrusion, the flip cover is used to cover the functional area to be covered;

[0011] When the clamping structure is released from the mating fixation with the protrusion, the flip cover is horizontally flipped relative to the housing to expose the covered functional area.

[0012] Furthermore, the clamping structure includes an elastic member, one end of which is fixed on the flip cover, and the other end of which has a hook portion for hooking the protrusion.

[0013] Furthermore, the outer side of the elastic member has a protruding pressing portion, and there is a distance between the hook portion and the flip cover.

[0014] Furthermore, the clamping structure includes a rigid member, one end of which is rotatably mounted on the flip cover, the other end of which has a hook portion for hooking the protrusion, and a return spring is provided between the inner side of the rigid member and the flip cover.

[0015] Furthermore, the flip cover has an ear, and the first rotating shaft passes through the ear to rotatably connect one end of the rigid member to the flip cover. The outer side of the rigid member has a protruding pressing portion, and there is a distance between the hook and the flip cover.

[0016] Furthermore, one end of the flip cover is rotatably connected to the accommodating groove via a second rotating shaft.

[0017] Furthermore, a relief groove for accommodating the rotation of the flip cover is provided on the front side of the shell.

[0018] Furthermore, a first magnet block is embedded in the avoidance groove, and a second magnet block attracted to the first magnet block is provided on the flip cover.

[0019] Furthermore, a track groove for being inserted into a track is formed on the back of the shell.

[0020] Furthermore, a side surface of the shell is provided with a hidden groove, a rotatable ear is installed in the hidden groove, and the ear is provided with a screw hole.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] In the utility model, the flip cover can cover the functional area to be covered quickly through the clamping structure, and the flip cover is closed in the receiving groove. The clamping structure can make the flip cover open quickly from the receiving groove, so that the functional area to be covered is exposed within the field of vision of the operator. Therefore, the flip cover can be opened and closed quickly, and the operation efficiency can be maintained.

[0023] In the utility model, since the bottom of the receiving groove is provided with a notch, the wire is conveniently connected to the functional area to be covered through the notch, and the flip cover will not squeeze the wire when it is closed in the receiving groove.

[0024] In the utility model, when the wiring operation needs to be carried out for a long time and the flap needs to be kept open for a long time, the flap can be rotated to open to the limit angle (set according to the actual situation). Since two magnet blocks are provided, the first magnet block and the second magnet block attract each other, so that the flap will not be easily accidentally rotated after reaching the limit opening angle, and thus can be reliably kept at the opening angle. At the same time, since the flap is fully opened and as far away from the functional area to be covered as possible, the functional area to be covered can maintain an effective and maximized operating space, so that the operator can perform convenient operations.

[0025] The utility model can satisfy the requirement that the electric meter can be installed in a guide rail manner, and at the same time, the electric meter also supports a wall-mounted installation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the utility model when the flip cover is opened horizontally.

[0028] Figure 3 It is a schematic diagram of the ear of the utility model being stored in the hidden groove.

[0029] Figure 4 It is a schematic diagram of the clamping structure of the utility model.

[0030] Figure 5 It is another schematic diagram of the clamping structure of the utility model.

[0031] Figure 6 This is the principle block diagram of the utility model (multi-function) electric meter.

[0032] Figure 7 This is a full view of the LCD and key display of the utility model.

[0033] In the figure: 1-housing, 2-protrusion, 3-display window, 4-keyboard, 5-pulse indicator light, 6-track groove, 7-accommodating groove, 8-flip cover, 9-functional area to be covered, 10-second rotating shaft, 11-clamping structure, 12-elastic member, 13-bump, 14-hook, 15-pressing portion, 16-rigid member, 17-ear, 18-first rotating shaft, 19-reset spring, 20-notch, 21-interface, 22-screw hole, 23-avoidance groove, 24-second magnet block, 25-first magnet block, 26-hidden groove, 27-inclined surface. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0035] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "sleeved", "sleeved", "connected", etc. should be understood in a broad sense. For example, "connected" 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 utility model can be understood according to specific circumstances.

[0037] Example 1

[0038] See also Figures 1 to 4 as well as Figure 6 to Figure 7 , the utility model provides a technical solution:

[0039] A guide rail type electric meter has multiple functions, including:

[0040] It has the functions of full power measurement, power statistics, power quality analysis, multi-rate power metering, four-quadrant power metering, harmonic analysis, power grid quality analysis, remote signal input, remote control output and network communication, and is mainly used for comprehensive monitoring of power supply quality of power grid. Figure 6 As shown in the figure, it adopts a modular design, and with the function-rich external DI / DO module, AI / AO module, event recording (SOE) module, and network communication module, it can flexibly realize the full power measurement of the electrical circuit and switch status monitoring.

[0041] The 16-bit MCU computer control chip of RENESAS is adopted, which has super anti-electromagnetic interference capability and is particularly suitable for application in various industrial occasions. The MCU and the modules connected thereto are installed in the housing 1.

[0042] It adopts dot matrix LCD screen display, and the operation interface is simple and easy to understand. The dot matrix LCD screen is located at the protrusion 2. The power function module adopts the EU ST switching power supply chip with a MOSFET of up to 800V, which has wide voltage, long life, high reliability, and industrial grade. By setting the keyboard 4, including SET, left and right shift keys, and confirmation key programming or RS485 programming, the user can arbitrarily set the control parameters and the controller working parameters. The instrument setting data is permanently saved through the memory and will not be lost after power failure. It has switch input, A, B, C three-phase voltage, current sampling, relay output, metering pulse, clock second pulse output, and 4-20mA analog output functions.

[0043] Interface 21 includes RS485 communication interface, etc. The RS485 communication interface supports a maximum baud rate of 38400bps, supports Modbus, DLT645 and other communication protocols, and can easily realize the remote data reading function. Figure 7 As shown, the dot matrix LCD screen is based on a large-screen LCD and touch-sensitive key design, which can conveniently perform local viewing and setting operations of various measurement parameters. The product has a password protection function to ensure the data security of the product. The pulse indicator light 5 is located at the protrusion 2 and is close to the display window, including active and reactive pulse indicator lights.

[0044] The structure of the electric meter comprises: a housing 1, the front of the housing 1 is provided with a receiving slot 7 for receiving a functional area 9 to be covered;

[0045] A flip cover 8, one end of which is rotatably connected to one end of the receiving groove 7, the other end of which has a snap-fit ​​structure 11, and the other end of the receiving groove 7 has a protrusion 13 that cooperates and fixes with the snap-fit ​​structure 11;

[0046] When the clamping structure 11 is fixedly matched with the protrusion 13, the flip cover 8 is used to cover the functional area 9 to be covered;

[0047] When the clamping structure 11 and the protrusion 13 are released from the mating fixation, the flip cover 8 is horizontally flipped relative to the housing 1 to expose the covered functional area 9.

[0048] The front center of the housing has a protrusion 2 for mounting a dot matrix LCD screen. The flip cover 8 can have one or two. When there are two, they are symmetrically distributed about the protrusion 2. This embodiment is described with one flip cover 8.

[0049] The functional area to be covered 9 is used for operations related to wiring, detection, parameter collection, etc.

[0050] Specifically, the clamping structure 11 includes an elastic member 12 , one end of which is fixed on the flip cover 8 , and the other end of the elastic member 12 has a hook portion 14 for hooking the protrusion 13 .

[0051] Specifically, the outer side of the elastic member 12 has a protruding pressing portion 15 , and there is a distance between the hook portion 14 and the flip cover 8 .

[0052] Specifically, one end of the flip cover 8 is rotatably connected to the accommodating groove 7 via a second rotating shaft 10 .

[0053] In this embodiment, when performing relevant functional operations in the functional area to be covered 9, taking wiring operations as an example: Figure 2 and Figure 4 As shown, initially, the pressing portion 15 needs to be pressed to the left, so that the elastic member 12 drives the hook portion 14 to move to the left within the spacing, so that the hook portion 14 will gradually move to the left until it is separated from the protrusion 13. Then, the pressing portion 15 is rotated toward the outer receiving groove 7, and due to the second rotating shaft 10, the left end of the flip cover 8 is rotated about the second rotating shaft 10, so that the flip cover 8 can be rotated and opened in a horizontal manner, thereby exposing the functional area 9 to be covered within the field of vision of the operator, thereby facilitating the wiring operation.

[0054] When covering, the flip cover 8 is rotated in the opposite direction, and the elastic member 12 is reinserted, so that the hook portion 14 is re-entered and used to hook the projection 13. In this way, the flip cover 8 can cover the functional area 9 to be covered, and the flip cover 8 is closed in the receiving groove 7 again.

[0055] Since the bottom of the receiving groove 7 is provided with a notch 20, it is convenient for the wire to be connected to the functional area 9 to be covered through the notch 20, and the flip cover 8 will not squeeze the wire when it is closed in the receiving groove 7. Except for necessary conductive parts, such as the housing 1, the elastic member 12, the pressing part 15 and other parts are all made of insulating materials or are insulated.

[0056] In this embodiment, the elastic member 12 is elastic, such as a metal spring with an insulating layer. In order to facilitate the hook 14 to be reinserted and hooked with the protrusion 13, the protrusion 13 has an inclined surface 27 on the outside, so as to facilitate the hook 14 to slide down.

[0057] The pressing portion 15 is located outside the receiving groove 7, so as to facilitate the pressing operation.

[0058] Specifically, Figure 1 As shown, a relief groove 23 for accommodating the rotation of the flip cover 8 is provided on the front side of the housing 1 .

[0059] Since the flip cover 8 is opened by rotating in a horizontal manner, when the left end of the flip cover 8 rotates around the second rotating shaft 10, the opening angle can be set within the range of 0-180° by providing the avoidance groove 23. For example, it can be 60°, 80°, 90°, 120° or 150°, etc., or an interval value with any two of them as endpoints. In this way, the functional area 9 to be covered can be well exposed within the visual range of the operator.

[0060] Specifically, a first magnet block 25 is embedded in the avoidance groove 23 , and a second magnet block 24 attracted to the first magnet block 25 is provided on the flip cover 8 .

[0061] When the wiring operation needs to be carried out for a long time, the flip cover 8 needs to be kept open for a long time, and the flip cover 8 can be rotated to open to the limit angle (set according to the actual situation, 180° is taken as an example here). Since two magnet blocks are provided, the first magnet block 25 and the second magnet block 24 attract each other, so that the flip cover 8 will not be easily accidentally rotated after reaching the limit opening angle, and thus can be reliably maintained at the opening angle. At the same time, since the flip cover 8 is fully opened and as far away from the functional area 9 to be covered as possible, the functional area 9 to be covered can maintain an effective and maximized operating space, so that the operator can perform convenient operations.

[0062] Specifically, a track groove 6 for being inserted into a track is formed on the back of the housing 1 .

[0063] Specifically, a side surface of the housing 1 has a hidden groove 26 , a rotatable ear is installed in the hidden groove 26 , and the ear has a screw hole 22 .

[0064] By providing a track groove 6 on the back of the housing 1 , the electric meter can be installed in a guide rail manner, and can be slidably installed on the guide rail through the track groove 6 .

[0065] At the same time, the meter also supports wall-mounted installation. If it needs to be installed on the wall, such as Figure 1 As shown, the ear is turned out from the hidden groove 26, and then the housing 1 is attached to the wall, and screws are screwed into the screw holes 22, so that the electric meter is fixed to the wall.

[0066] like Figure 3As shown, when the ear is not to be mounted on the wall, the ear can be covered in the hidden groove 26. To facilitate the removal of the ear, the thickness of the ear is greater than the depth of the hidden groove 26. In addition, in order to store the ear in the hidden groove 26, there can be a certain damping friction between the ear and the rotating shaft (not shown in the figure) of the hidden groove 26, so that the ear will not fall out of the hidden groove 26 easily. Only when in use, the operator applies a certain force with his fingers to buckle the ear outward, so that one end of the ear is buckled out of the hidden groove 26, and then rotates out of the hidden groove 26.

[0067] Example 2

[0068] See also Figure 5 The utility model provides a technical solution, which is basically the same as that of embodiment 1, with the slight difference that:

[0069] The clamping structure 11 includes a rigid member 16 , one end of which is rotatably mounted on the flip cover 8 , the other end of which has a hook portion 14 for hooking the protrusion 13 , and a return spring 19 is provided between the inner side of the rigid member 16 and the flip cover 8 .

[0070] Specifically, the flip cover 8 has an ear 17 , and a first shaft 18 passes through the ear 17 to rotatably connect one end of the rigid member 16 to the flip cover 8 . The rigid member 16 has a protruding pressing portion 15 on the outer side, and there is a distance between the hook 14 and the flip cover 8 .

[0071] In this embodiment, when performing relevant functional operations on the functional area 9 to be covered, taking wiring operations as an example: through the clamping structure 11, the flip cover 8 can be quickly flipped out of the receiving groove 7, so that the functional area 9 to be covered is exposed within the field of vision of the operator: initially, the pressing portion 15 needs to be pressed to the left, so that the upper part of the rigid member 16 rotates with the first rotating shaft 18, and the hook portion 14 at the bottom moves to the left within the spacing, so that the hook portion 14 will gradually move to the left until it is separated from the protrusion 13. Then the pressing portion 15 is rotated toward the receiving groove 7, and due to the second rotating shaft 10, the left end of the flip cover 8 is rotated with the second rotating shaft 10, so that the flip cover 8 can be rotated and opened in a horizontal manner, and then the functional area 9 to be covered is exposed within the field of vision of the operator, so as to facilitate the wiring operation.

[0072] When closing, the flip cover 8 is rotated in the opposite direction, the rigid member 16 is reinserted, and the hook 14 is re-entered under the elastic force generated by the compression of the return spring 19 and is used to hook the protrusion 13. In this way, the flip cover 8 can cover the functional area 9 to be covered, and the flip cover 8 is closed in the receiving groove 7 again.

[0073] In this embodiment, the rigid member 16 can be made of plastic material or ceramic material.

[0074] The undescribed parts of the present invention are existing or known technologies.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide rail type electric meter, characterized in that: include: A housing (1), wherein a front surface of the housing (1) is provided with a receiving groove (7) for receiving a functional area (9) to be covered; A flip cover (8), one end of the flip cover (8) being rotatably connected to one end of the receiving groove (7), the other end of the flip cover (8) having a snap-fit ​​structure (11), and the other end of the receiving groove (7) having a protrusion (13) that cooperates and is fixed with the snap-fit ​​structure (11); When the clamping structure (11) and the protrusion (13) are matched and fixed, the flip cover (8) is used to cover the functional area (9) to be covered; When the clamping structure (11) and the protrusion (13) are released from the mating fixation, the flip cover (8) is flipped horizontally relative to the housing (1) so that the covered functional area (9) is exposed.

2. A guide rail type electric meter as claimed in claim 1, characterized in that: The clamping structure (11) comprises an elastic member (12), one end of the elastic member (12) is fixed on the flip cover (8), and the other end of the elastic member (12) has a hook portion (14) for hooking the protrusion (13).

3. A guide rail type electric meter as claimed in claim 2, characterized in that: The outer side of the elastic member (12) has a protruding pressing portion (15), and there is a distance between the hook portion (14) and the flip cover (8).

4. A guide rail type electric meter as claimed in claim 1, characterized in that: The clamping structure (11) comprises a rigid member (16), one end of which is rotatably mounted on the flip cover (8), the other end of which has a hook portion (14) for hooking the protrusion (13), and a return spring (19) between the inner side of the rigid member (16) and the flip cover (8).

5. A guide rail type electric meter as claimed in claim 4, characterized in that: The flip cover (8) has an ear portion (17), and a first rotating shaft (18) passes through the ear portion (17) to rotatably connect one end of the rigid member (16) to the flip cover (8). The outer side of the rigid member (16) has a protruding pressing portion (15), and there is a distance between the hook portion (14) and the flip cover (8).

6. A guide rail type electric meter as claimed in claim 1, characterized in that: One end of the flip cover (8) is rotatably connected to the accommodating groove (7) via a second rotating shaft (10).

7. A guide rail type electric meter as claimed in claim 1, characterized in that: The front side of the housing (1) is provided with an avoidance groove (23) for accommodating the rotation of the flip cover (8).

8. A guide rail type electric meter as claimed in claim 7, characterized in that: The avoidance groove (23) is embedded with a first magnet block (25), and the flip cover (8) is provided with a second magnet block (24) attracted to the first magnet block (25).

9. A guide rail type electric meter as claimed in claim 1, characterized in that: The back side of the housing (1) is provided with a track groove (6) for being inserted into a track.

10. A guide rail type electric meter as claimed in claim 1, characterized in that: The side surface of the housing (1) is provided with a hidden groove (26), a rotatable ear portion is installed in the hidden groove (26), and the ear portion is provided with a screw hole (22).

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