Guide rail type electric energy meter

Abstract

The utility model discloses a guide rail type electric energy meter. The electric energy meter comprises a base and an upper cover, one side of the base deviating from the upper cover is provided with a mounting groove, and one side of the mounting groove is slidably connected with a locking member. Reset springs are arranged on two sides of the locking piece, and a mounting slope and a dismounting slope are arranged at the end. At least one side of the locking piece is provided with an anti-falling piece rotationally connected to the base. During mounting, the guide rail extrudes the locking piece along the mounting slope to compress the spring, and the spring resets to clamp the guide rail after being embedded into the mounting groove; during dismounting, the guide rail pushes the locking piece to unlock along the dismounting inclined surface; and the anti-falling piece rotationally abuts against the locking piece to prevent the ammeter from accidentally falling off. According to the utility model, through cooperation of inclined plane guiding and spring elastic force, operation thrust is reduced, a problem of difficult force application in a narrow space is solved, convenience and safety of mounting and dismounting are improved, and the device is suitable for various power distribution scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric energy meter, especially relates to a guide rail type electric energy meter. BACKGROUND

[0002] The guide rail type electric energy meter is a kind of electric energy metering equipment suitable for DIN35mm standard installation guide rail, is widely used in building power distribution, industrial control cabinet, smart home distribution box and other scenes, becomes the core component of distributed power metering system by virtue of small size, the advantage of not needing additional fastener.The conventional installation mode thereof and guide rail is as follows: electric meter base integrates guide rail clamping groove and locking structure, operating personnel inserts electric meter clamping groove into guide rail end portion, then pushes the locking piece of electric meter base, makes locking structure occur elastic deformation and is inserted into the limiting slot of guide rail, to complete the fixed assembly of electric meter and guide rail, and when disassembling, the limiting can be released by pushing the locking piece in reverse.

[0003] The locking swing arm of existing guide rail type electric energy meter is designed by rigid buckle type, and its locking action needs to rely on the relatively large pushing force exerted by operating personnel to force the locking piece to produce sufficient deformation to realize clamping limiting.In actual installation scene, there are often dense arrangement of components in the interior of distribution box, and the up-down width space of electric meter installation position is narrow, so that operating personnel's hands are difficult to spread and accurately exert force;excessive pushing force requirement will prolong the installation and disassembly time of single electric meter, and reduce overall construction efficiency. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a guide rail type electric energy meter, to reduce the operating pushing force of locking piece, solve the problem of difficult force exertion in narrow installation space, and improve the convenience and safety of electric meter installation and disassembly.

[0005] To achieve the above-mentioned purpose, the utility model provides a guide rail type electric energy meter, which comprises a base and an upper cover, one side of the base away from the upper cover is provided with a mounting groove, one side of the mounting groove is slidably connected with a locking piece, both sides of the locking piece are provided with return springs, one end of the return spring abuts against the base, and the other end abuts against the locking piece, and the locking piece is kept clamped with the guide rail through the return spring;

[0006] When the locking piece moves away from the mounting groove, the return spring is compressed, and the guide rail is separated from the mounting groove;

[0007] One end of the locking piece towards the mounting groove is provided with a mounting slope and a dismounting slope, the mounting slope is used to guide the locking piece to compress the return spring, so that the guide rail is embedded into the mounting groove;The dismounting slope is used to guide the locking piece to compress the return spring, so that the guide rail is separated from the mounting groove;

[0008] The locking piece is provided with an anti-disengagement piece on at least one side for preventing the electric energy meter from being disengaged accidentally after installation, the anti-disengagement piece is in abutment with the locking piece, the anti-disengagement piece is rotationally connected with the base, and the anti-disengagement piece is in abutment with the locking piece through rotation.

[0009] In a possible implementation, the locking piece is fixedly connected with a connecting strip on both sides, and the reset spring is in abutment with the connecting strip.

[0010] In a possible implementation, the anti-disengagement piece is provided with an abutment block, the abutment block is in abutment with the connecting strip, and the abutment block and the connecting strip are arc-shaped at the abutment position, and the arc center of the arc shape overlaps with the rotation axis of the anti-disengagement piece.

[0011] In a possible implementation, the anti-disengagement piece is provided with a rotating strip on the side away from the locking piece, both ends of the rotating strip are provided with rotating blocks, and the rotating blocks are used for facilitating the rotation of the anti-disengagement piece by the operator.

[0012] In a possible implementation, the rotating strip and the base are provided with a limiting structure for preventing the rotating blocks from being excessively rotated.

[0013] In a possible implementation, the limiting structure comprises a first baffle, a first clamping strip and a second clamping strip, the rotating strip is provided with a limiting slot, the first clamping strip is located in the limiting slot and is fixedly connected with the rotating strip, the first baffle and the second clamping strip are fixedly connected with the base, the first clamping strip is located between the first baffle and the second clamping strip, and the first baffle is located on the side of the first clamping strip facing the locking piece.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] The utility model technical scheme sets the reset spring on both sides of the locking piece, cooperates with the guide effect of the installation slope and the dismounting slope at the end of the locking piece, automatically compresses the reset spring by the slope component force when the guide rail is embedded into the installation slot or separated from the installation slot, replaces the large pushing force applied by the artificial, limits by the rotatable anti-disengagement piece and the locking piece, realizes the operation pushing force of the locking piece, solves the problem of difficult force application in the narrow space, and improves the convenience of the electric meter installation and dismounting. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without the creative labor for the ordinary skilled in the art.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 is a bottom view of the utility model;

[0019] Figure 3 is a side view of the utility model;

[0020] Figure 4 is Figure 3 the A-A section view of the utility model;

[0021] Figure 5 is Figure 4 the A enlarged view of the utility model.

[0022] The drawing number explanation: 1, base; 2, upper cover; 3, installation groove; 4, locking piece; 5, anti-drop piece; 11, reset spring; 12, first baffle; 13, second clamping strip; 41, installation inclined plane; 42, dismounting inclined plane; 43, connecting strip; 51, abutment block; 52, push bar; 53, push block; 54, limiting slot; 55, first clamping strip.

[0023] The utility model purposes, functional characteristics and advantages will be further explained by combining with embodiments, referring to the drawings. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the application more clear and obvious, the application will be further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and are not used to limit the application.

[0025] As Figures 1-5As shown, the embodiment proposes a guide rail type electric energy meter, which comprises a base 1 and an upper cover 2, the base 1 and the upper cover 2 constitute the shell main body of the guide rail type electric energy meter, the base 1 is used for bearing all internal components and external mounting structure, and the upper cover 2 is used for protecting the internal components; the side of the base 1 away from the upper cover 2 is provided with a mounting groove 3 used for adapting to a DIN 35mm standard guide rail, one side of the mounting groove 3 is slidably connected with a locking piece 4, reset springs 11 are arranged on both sides of the locking piece 4, connecting strips 43 are fixedly connected to both sides of the locking piece 4, one end of the reset spring 11 abuts against the base 1, and the other end abuts against the connecting strip 43, and the locking piece 4 is kept in clamping connection with the guide rail through the reset spring 11; the reset spring 11 is used for providing the locking piece 4 with continuous elastic force, so that the locking piece 4 is kept in the clamping connection state with the guide rail. The reset spring 11 does not need to be manually additionally forced to maintain the locking state, effectively preventing the electric meter from loosening and shifting in a vibrating environment; when the locking piece 4 is unlocked, only the spring elastic force needs to be overcome, and the dismounting action is simple and labor-saving; the elastic reset characteristic of the spring enables the locking piece 4 to be automatically reset after each operation, improving the operation consistency. When the locking piece 4 moves away from the mounting groove 3, the reset spring 11 is compressed, and the guide rail is separated from the mounting groove 3; the connecting strip 43 is a force transmission medium between the reset spring 11 and the locking piece 4, and is used for enabling the spring elastic force to uniformly act on the locking piece 4.

[0026] The end of the locking piece 4 towards the mounting groove 3 is provided with a mounting inclined surface 41 and a dismounting inclined surface 42, the mounting inclined surface 41 is used for guiding the locking piece 4 to compress the reset spring 11, so that the guide rail is embedded into the mounting groove 3; and the dismounting inclined surface 42 is used for guiding the locking piece 4 to compress the reset spring 11, so that the guide rail is separated from the mounting groove 3. The mounting inclined surface 41 and the dismounting inclined surface 42 utilize the inclined surface component force principle, convert the manually applied thrust force into the guiding force along the inclined surface, greatly reduce the force required for the locking / unlocking operation, and solve the problem of difficult force application in a narrow space; when mounting and dismounting, the force application point does not need to be accurately aligned, avoiding the slippage and deviation caused by unstable force application, and reducing the security risk of accidentally touching the surrounding live components; the guiding effect of the inclined surface makes the contact between the guide rail and the locking piece 4 more soft, reduces the collision and wear between structures, and prolongs the service life of the overall mounting structure.

[0027] In this embodiment, the locking member 4 is provided with a anti-disengagement member 5 on at least one side to prevent the electric energy meter from being accidentally disengaged after installation. The anti-disengagement member 5 is in abutment with the locking member 4, and is rotationally connected with the base 1. The anti-disengagement member 5 is in abutment with the connecting strip 43 through rotation. The anti-disengagement member 5 is provided with an abutment block 51, which is in abutment with the connecting strip 43. The abutment block 51 and the connecting strip 43 are in abutment in an arc shape, and the arc center of the arc-shaped abutment is overlapped with the rotational axis of the anti-disengagement member 5. The anti-disengagement member 5 is provided with a rotating bar 52 on the side away from the locking member 4. The rotating bar 52 is provided with rotating blocks 53 at both ends, which are used to facilitate the rotation of the anti-disengagement member 5 by the operator. The anti-disengagement member 5 makes up for the limitation of the reset spring 11 alone, and can effectively avoid the risk of electric meter disengagement caused by the vibration of the distribution box, accidental touch of the locking member 4 by personnel, and the like, and improve the structural stability of the electric meter after installation. The design of rotational connection is suitable for operation in a narrow space, and rotation can complete locking / release without the need for additional large force, which meets the use requirements of a narrow installation environment. The abutment block 51 is used to limit the locking member 4 by the anti-disengagement member 5. The arc center of the arc-shaped contact surface of the abutment block 51 is overlapped with the rotational axis, so that the abutment block 51 and the connecting strip 43 always maintain smooth contact during the rotation of the anti-disengagement member 5, without jamming or stagnation. The arc-shaped contact can disperse the stress at the abutment, avoid the wear and deformation of the abutment block 51 or the connecting strip 43 caused by local stress concentration, and prolong the service life of the structure. The rotating bar 52 is used to transmit operating force, and the rotating block 53 facilitates the rotation of the anti-disengagement member 5 by the operator.

[0028] In this embodiment, the rotating bar 52 and the base 1 are provided with a limiting structure for preventing the rotating block 53 from being excessively rotated. The limiting structure includes a first baffle 12, a first clamping strip 55, and a second clamping strip 13. The rotating bar 52 is provided with a limiting groove 54. The first clamping strip 55 is located in the limiting groove 54 and is fixedly connected with the rotating bar 52. The first baffle 12 and the second clamping strip 13 are fixedly connected with the base 1. The first clamping strip 55 is located between the first baffle 12 and the second clamping strip 13. The first baffle 12 is located on the side of the first clamping strip 55 facing the locking member 4. The first clamping strip 55 is in abutment with the second clamping strip 13 through the rotation of the anti-disengagement member 5. The first clamping strip 55 and the second clamping strip 13 are deformed, so that the first clamping strip 55 is embedded between the first baffle 12 and the second clamping strip 13. The cooperation of the first clamping strip 55 and the limiting groove 54, and the bidirectional limiting of the first baffle 12 and the second clamping strip 13, can prevent the anti-disengagement member 5 from rotating by itself in a vibrating environment, and further strengthen the anti-disengagement stability.

[0029] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0030] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rail-mounted energy meter, comprising a base (1) and a top cover (2), wherein the base (1) has a mounting groove (3) on the side opposite to the top cover (2), and a locking element (4) is slidably connected to one side of the mounting groove (3), characterized in that, Both sides of the locking member (4) are provided with return springs (11). One end of the return spring (11) abuts against the base (1) and the other end abuts against the locking member (4). The locking member (4) is held in place with the guide rail by the return spring (11). When the locking element (4) moves away from the mounting groove (3), the return spring (11) is compressed, and the guide rail separates from the mounting groove (3); The locking member (4) has an installation ramp (41) and a disassembly ramp (42) at one end facing the mounting groove (3). The installation ramp (41) is used to guide the locking member (4) to compress the return spring (11) so that the guide rail is embedded in the mounting groove (3). The disassembly ramp (42) is used to guide the locking member (4) to compress the return spring (11) so that the guide rail is disengaged from the mounting groove (3). The locking member (4) has an anti-detachment member (5) on at least one side to prevent the electricity meter from accidentally detaching after installation. The anti-detachment member (5) abuts against the locking member (4). The anti-detachment member (5) is rotatably connected to the base (1). The anti-detachment member (5) abuts against the locking member (4) by rotation.

2. A rail-mounted energy meter according to claim 1, characterized in that, The locking member (4) is fixedly connected to the two sides by connecting strips (43), and the reset spring (11) abuts against the connecting strips (43).

3. A rail-mounted energy meter according to claim 2, characterized in that, The anti-detachment component (5) is provided with an abutment block (51), which abuts against the connecting strip (43). The abutment block (51) and the connecting strip (43) are arc-shaped at the abutment point, and the center of the arc overlaps with the rotation axis of the anti-detachment component (5).

4. A rail-mounted energy meter according to claim 1, 2, or 3, characterized in that, The anti-detachment component (5) has a toggle bar (52) on the side opposite to the locking component (4). Both ends of the toggle bar (52) are provided with toggle blocks (53). The toggle blocks (53) are used to facilitate the operator to rotate the anti-detachment component (5).

5. A rail-mounted energy meter according to claim 4, characterized in that, The toggle bar (52) and the base (1) are provided with a limiting structure to prevent the toggle block (53) from rotating excessively.

6. A rail-mounted energy meter according to claim 5, characterized in that, The limiting structure includes a first baffle (12), a first locking strip (55), and a second locking strip (13). The actuating strip (52) is provided with a limiting groove (54). The first locking strip (55) is located in the limiting groove (54) and is fixedly connected to the actuating strip (52). The first baffle (12) and the second locking strip (13) are both fixedly connected to the base (1). The first locking strip (55) is located between the first baffle (12) and the second locking strip (13). The first baffle (12) is located on the side of the first locking strip (55) facing the locking member (4).

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