An electric meter box with good protection effect

Abstract

The invention discloses an electric meter box with good protective effect, comprising a base plate, a fixed frame fixedly connected to the base plate, a movable frame sleeved outside the fixed frame, an end plate fixedly connected to one end of the movable frame away from the fixed frame, an elastic element arranged between the fixed frame and the movable frame; a support block arranged on the side of the end plate close to the fixed frame, a roller arranged on the end plate, a pull rope fixedly connected to the base plate, a gravity block fixedly connected to the pull rope passing around the roller, the gravity block placed on the support block, the movable frame shakes under the action of external force so that the gravity block falls from the support block and the gravity block falls and drives the pull rope to pull the movable frame toward the fixed frame. The invention enlarges the space inside the electric meter box by arranging a layer of movable frame outside the fixed frame, which is beneficial to internal heat dissipation; when the movable frame is hit, the gravity block shakes from the support block, and the movable frame retracts to the outside of the fixed frame, and the double-layer structure protects the equipment inside the electric meter box, and the protective effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of electric meter boxes, and in particular to an electric meter box with good protection effect. Background Art

[0002] The meter box is a device specially used for the centralized installation of electric energy metering instruments (such as electric meters). The primary function of the meter box is to protect the electric meter from damage by the external environment, such as rain, dust, collision, etc., to ensure the normal operation and measurement accuracy of the electric meter. It provides a safe operating environment for the electric meter and avoids safety hazards caused by meter failure or misoperation. The meter box is widely used in various buildings, industrial sites and other occasions where electricity metering and monitoring are required. Whether it is a residential, commercial building or industrial plant, a meter box is needed to fix the electric meter and provide protection for it.

[0003] Electricity meter boxes can be installed indoors or outdoors. Electricity meter boxes installed outdoors are susceptible to external collisions and need to be waterproof and breathable. In order to facilitate ventilation, existing electric meter boxes have large dimensions, large internal gaps, long cantilever distances, low strength, and large external protrusions when installed on buildings, making them easy to be damaged. Summary of the invention

[0004] The purpose of the present invention is to solve the above technical problems and provide an electric meter box with good protection effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electric meter box with good protection effect comprises a base plate, a fixed frame is fixedly connected to the base plate, a movable frame is sleeved on the outer side of the fixed frame, an end of the movable frame away from the fixed frame is fixedly connected to an end plate, a movable gap is arranged between the fixed frame and the movable frame, an elastic element is arranged in the movable gap, one end of the elastic element abuts on the fixed frame, and the other end of the elastic element abuts on the inner side of the movable frame;

[0007] A support block is provided on one side of the end plate close to the fixed frame, a roller is provided on the end plate, a pull rope is fixedly connected to the base plate, the pull rope is passed around the roller and fixedly connected to a gravity block, the gravity block is placed on the support block, the movable frame shakes under the action of external force so that the gravity block falls from the support block and the falling of the gravity block drives the pull rope to pull the movable frame toward the fixed frame.

[0008] Furthermore, a heat dissipation hole is provided on the side wall of the movable frame, and a plurality of the heat dissipation holes are provided and arranged in a row.

[0009] Furthermore, a reset drive device is provided in the fixed frame, and the reset drive device is used to drive the movable frame to move away from the fixed frame and drive the gravity block to rise so that the gravity block is lifted to just above the support block.

[0010] Furthermore, the reset drive device includes a driving wheel and a driven wheel rotatably connected to the fixed frame, the driving wheel and the driven wheel are synchronous wheels and the same synchronous belt is sleeved on the driving wheel and the driven wheel, and the driving wheel and the driven wheel are transmitted through the synchronous belt; a toggle plate is fixedly connected to the synchronous belt, and a push rod is fixedly connected to the end plate, and the push rod extends above the synchronous belt, and the movement of the synchronous belt drives the toggle plate to abut against the end of the push rod and push the push rod away from the fixed frame.

[0011] Furthermore, a stepper motor is installed on the side wall of the fixed frame, and the output shaft of the stepper motor is connected to the driving wheel through a gear transmission.

[0012] Furthermore, a touch switch is provided on the support block, and the touch switch abuts against the bottom of the gravity block, so that the touch switch sends a trigger signal when the gravity block falls from the support block.

[0013] Furthermore, a hinge seat is fixedly connected to the end plate, and the roller is rotatably connected to the hinge seat.

[0014] Furthermore, the outer surface of the roller is provided with a V-shaped groove, and the V-shaped groove is arranged around the circumference of the roller.

[0015] Furthermore, the elastic element includes a fixed cylinder fixedly connected to the fixed frame, a telescopic column is slidably connected in the fixed cylinder, a compression spring is arranged in the fixed cylinder, the compression spring abuts against one end of the telescopic column located in the fixed cylinder to provide elastic force to push the telescopic column out of the fixed cylinder; the end of the telescopic column away from the fixed cylinder is rotatably connected to a pulley, and the pulley abuts against the inner wall of the movable frame.

[0016] Furthermore, a water retaining ring is fixedly connected to the outer wall of the fixed frame, and the water retaining ring is arranged along the circumference of the fixed frame. The water retaining ring is made of elastic material, and the edge of the water retaining ring away from the fixed frame abuts against the inner wall of the movable frame.

[0017] Furthermore, a cleaning brush is fixedly connected to the inner wall of one end of the movable frame away from the end plate. The movable frame cleans the surface of the fixed frame through the cleaning brush during the movement, thereby keeping the outer surface of the fixed frame clean.

[0018] The present invention provides an electric meter box with good protection effect, which has the following beneficial effects: the electric meter box is composed of a fixed frame and a movable frame. A layer of movable frame is arranged outside the fixed frame, and the movable frame extends along the fixed frame, so that the space inside the electric meter box becomes larger, which is beneficial to internal heat dissipation; when the movable frame is collided, the movable frame elastically shakes under the support of the elastic element to reduce the impact force, and at the same time, the shaking of the movable frame causes the supporting block to shake, thereby shaking the gravity block off the supporting block, and the gravity block pulls the pull rope when it falls from the supporting block. The pull rope moves downward with the gravity block to pull the movable frame toward the fixed frame, and the movable frame retracts to the outside of the fixed frame, so that the double-layer structure of the movable frame and the fixed frame protects the equipment in the electric meter box, and the protection effect is better; at the same time, the movable frame shrinks, thereby reducing the external dimensions of the electric meter box, thereby reducing the area affected by the collision and reducing the risk of the collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an electric meter box with good protection effect provided by the present invention;

[0021] Figure 2 A schematic diagram of a side cross-sectional structure of an electric meter box with good protection effect provided by the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the local structure of part A in the middle;

[0023] Figure 4 for Figure 3 Schematic diagram of the local structure of the middle B part;

[0024] Figure 5 A schematic diagram of the local structure of a roller part in an electric meter box with good protection effect provided by the present invention;

[0025] Figure 6 A schematic diagram of the structure of the matching position of the roller and the pull rope in an electric meter box with good protection effect provided by the present invention;

[0026] Figure 7 The present invention is a schematic structural diagram of a movable frame in an electric meter box with good protection effect after it is retracted.

[0027] Explanation of the numbers in the figure: 1. Base plate; 2. Fixed frame; 21. Water retaining ring; 3. Movable frame; 31. Movable gap; 32. Heat dissipation hole; 33. Cleaning brush; 4. End plate; 41. Support block; 42. Roller; 421. V-shaped groove; 43. Pull rope; 44. Gravity block; 45. Touch switch; 46. Articulated seat; 5. Elastic element; 51. Fixed cylinder; 52. Telescopic column; 53. Compression spring; 54. Pulley; 6. Reset drive device; 61. Driving wheel; 62. Driven wheel; 63. Synchronous belt; 64. Toggle plate; 65. Push rod; 66. Stepper motor. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0031] like Figure 1-Figure 7 As shown, an electric meter box with good protection effect comprises a substrate 1, the substrate 1 is used to be installed on a building, a fixed frame 2 is fixedly connected to the substrate 1, a movable frame 3 is sleeved on the outer side of the fixed frame 2, an end plate 4 is fixedly connected to the end of the movable frame 3 away from the fixed frame 2, and a box door is installed on the end plate 4 to facilitate opening and installing internal electrical components; an active gap 31 is provided between the fixed frame 2 and the movable frame 3, an elastic element 5 is provided in the active gap 31, one end of the elastic element 5 abuts on the fixed frame 2, and the other end of the elastic element 5 abuts on the inner side of the movable frame 3; a box structure with a cavity inside which an electric meter can be installed is enclosed by the substrate 1, the fixed frame 2, the movable frame 3 and the end plate 4;

[0032] A support block 41 is provided on one side of the end plate 4 close to the fixed frame 2, a roller 42 is provided on the end plate 4, a pull rope 43 is fixedly connected to the base plate 1, the pull rope 43 passes around the roller 42 and is fixedly connected to a gravity block 44, the gravity block 44 is placed on the support block 41, the movable frame 3 shakes under the action of external force so that the gravity block 44 falls from the support block 41, and the falling of the gravity block 44 drives the pull rope 43 to pull the movable frame 3 toward the fixed frame 2.

[0033] By adopting the above technical scheme, the electric meter box is composed of a fixed frame 2 and a movable frame 3. A layer of movable frame 3 is arranged outside the fixed frame 2, and the movable frame 3 extends along the fixed frame 2, so that the space inside the electric meter box becomes larger, which is beneficial to internal heat dissipation; when the movable frame 3 is collided, the movable frame 3 elastically shakes under the support of the elastic element 5 to reduce the impact force. At the same time, the shaking of the movable frame 3 causes the support block 41 to shake, thereby shaking the gravity block 44 off the support block 41. When the gravity block 44 falls from the support block 41, the pull rope 43 is pulled. The pull rope 43 moves downward with the gravity block 44 to pull the movable frame 3 toward the fixed frame 2, and the movable frame 3 retracts to the outside of the fixed frame 2, so that the double-layer structure of the movable frame 3 and the fixed frame 2 protects the equipment in the electric meter box, and the protection effect is better; at the same time, the movable frame 3 shrinks, thereby reducing the external dimensions of the electric meter box, thereby reducing the area affected by the collision and reducing the risk of collision.

[0034] The side wall of the movable frame 3 is provided with heat dissipation holes 32, and the heat dissipation holes 32 are provided in a plurality and arranged in a row. The heat dissipation holes 32 are provided to facilitate internal heat dissipation.

[0035] A reset drive device 6 is provided in the fixed frame 2, and the reset drive device 6 is used to drive the movable frame 3 to move away from the fixed frame 2 and drive the gravity block 44 to rise so that the gravity block 44 is lifted to the top of the support block 41. After the electric meter box is hit for a certain period of time, the reset drive device 6 drives the movable frame 3 to move away from the fixed frame 2, so that the pull rope 43 drives the gravity block 44 to move upward so that the gravity block 44 is lifted to the top of the support block 41, thereby resetting the movable frame 3 and the gravity block 44, so that the movable frame 3 is in an extended state, so that the space inside the electric meter box becomes larger, which is conducive to internal heat dissipation.

[0036] The reset drive device 6 includes a driving wheel 61 and a driven wheel 62 rotatably connected to the fixed frame 2, the driving wheel 61 and the driven wheel 62 are synchronous wheels and the same synchronous belt 63 is sleeved on the driving wheel 61 and the driven wheel 62, and the driving wheel 61 and the driven wheel 62 are driven by the synchronous belt 63; a toggle plate 64 is fixedly connected to the synchronous belt 63, and a push rod 65 is fixedly connected to the end plate 4, and the push rod 65 extends above the synchronous belt 63, and the synchronous belt 63 moves to drive the toggle plate 64 to abut against the end of the push rod 65 and push the push rod 65 away from the fixed frame 2. Specifically, the push rod 65 is provided with two pieces and is respectively located on both sides of the pull rope 43 so that there is no interference between the push rod 65 and the pull rope 43, and the push rod 65 can be connected to the end by a thread, so that the length of the push rod 65 can be adjusted to match the toggle plate 64, so that the toggle plate 64 pushes the push rod 65 so that the gravity block 44 just falls on the support block 41. When the movable frame 3 is collided by an external force, the movable frame 3 moves toward the fixed frame 2, so that the top rod 65 moves toward the fixed frame 2. When the movable frame 3 is reset, the driving wheel 61 rotates to drive the synchronous belt 63 to move, so that the toggle plate 64 moves to push the top rod 65 of the movable frame 3 after contraction in the direction away from the fixed frame 2, and drives the movable frame 3 to move in the direction away from the fixed frame 2. The movement of the movable frame 3 drives the pull rope 43 to lift the gravity block 44. When the gravity block 44 is lifted to the top of the support block 41, the toggle plate 64 is driven by the synchronous belt 63 to flip and move to the bottom of the synchronous belt 63, so that the toggle block is separated from the top rod 65, and the gravity block 44 falls on the support block 41. The movable frame 3 stops moving, so that the movable frame 3 is reset to the extended state.

[0037] A stepper motor 66 is installed on the side wall of the fixed frame 2, and the output shaft of the stepper motor 66 is connected to the driving wheel 61 through a gear transmission. The stepper motor 66 drives the driving wheel 61 to rotate, thereby driving the synchronous belt 63 to push the push rod 65 away from the fixed frame 2, so that the movable frame 3 is away from the fixed frame 2, and the pull rope 43 lifts the gravity block 44 upward so that the gravity block 44 falls on the support block 41, and the gravity block 44 is supported by the support block 41, so that the movable frame 3 is reset. Driven by the stepper motor 66, the driving stroke is kept consistent, so that the reset position is accurate.

[0038] The support block 41 is provided with a touch switch 45, which abuts against the bottom of the gravity block 44, so that the touch switch 45 sends a trigger signal when the gravity block 44 falls from the support block 41. The touch switch 45 is a circuit switch that sends a switch signal after receiving a touch or releasing the touch, so that the control system starts the reset drive device 6 to reset the movable frame 3 after a certain delay according to the trigger signal.

[0039] The end plate 4 is fixedly connected with an articulated seat 46, and the roller 42 is rotatably connected to the articulated seat 46. Thus, the pull rope 43 drives the roller 42 to roll when moving, thereby reducing the friction resistance between the pull rope 43 and the roller 42.

[0040] The outer surface of the roller 42 is provided with a V-shaped groove 421, and the V-shaped groove 421 is arranged around the roller 42. The pull rope 43 is limited by the V-shaped groove 421, and the pull rope 43 is located at the bottom of the V-shaped groove under the gravity stretching action of the gravity block 44, thereby preventing the pull rope 43 from falling off the roller 42.

[0041] The elastic element 5 includes a fixed cylinder 51 fixedly connected to the fixed frame 2, a telescopic column 52 is slidably connected in the fixed cylinder 51, a compression spring 53 is arranged in the fixed cylinder 51, and the compression spring 53 abuts against one end of the telescopic column 52 located in the fixed cylinder 51 to provide elastic force to push the telescopic column 52 out of the fixed cylinder 51; the end of the telescopic column 52 away from the fixed cylinder 51 is rotatably connected to a pulley 54, and the pulley 54 abuts against the inner wall of the movable frame 3. The compression spring 53 provides elastic force so that the pulley 54 keeps in contact with the movable frame 3, thereby maintaining the supporting state of the movable frame 3, and generating elastic force when the movable frame 3 is hit; the pulley 54 is in contact with the movable frame 3 to support it, so that the resistance of the movable frame 3 is small during the movement, which is convenient for the movable frame 3 to move.

[0042] A water retaining ring 21 is fixedly connected to the outer wall of the fixed frame 2. The water retaining ring 21 is arranged along the circumference of the fixed frame 2. The water retaining ring 21 is made of elastic material and the edge of the water retaining ring 21 away from the fixed frame 2 abuts against the inner wall of the movable frame 3. By providing the water retaining ring 21, water is prevented from flowing from the surface of the fixed frame 2 into the movable frame 3 and then into the interior of the fixed frame 2, thereby preventing rainwater from entering the internal electrical components, thereby ensuring the safety of the internal electrical components. When the rain is heavy, water droplets impact the movable frame 3, causing the movable frame 3 to shrink, so that the heat dissipation holes 32 on both sides move to the side of the water retaining ring 21 away from the end plate 4, thereby preventing rainwater from splashing into the interior of the fixed frame 2 from the heat dissipation holes 32. Specifically, the water retaining ring 21 is made of polyurethane or silicone material to have elasticity to keep in contact with the moving frame when the moving frame shakes.

[0043] A cleaning brush 33 is fixedly connected to the inner wall of one end of the movable frame 3 away from the end plate 4. The movable frame 3 cleans the surface of the fixed frame 2 through the cleaning brush 33 during the movement, thereby keeping the outer surface of the fixed frame 2 clean.

[0044] The working principle of the present invention is as follows: the electric meter box adopts a base plate 1, a fixed frame 2, a movable frame 3 and an end plate 4 to enclose a box structure with a cavity for installing an electric meter. When in use, the electric meter is installed on the base plate 1 and is located inside the fixed frame 2. The movable frame 3 extends along the fixed frame 2, thereby making the internal space of the electric meter box larger, which is beneficial to internal heat dissipation; the movable frame 3 and the fixed frame 2 are supported by an elastic element 5. When the movable frame 3 is impacted by an external force such as a collision, the elastic element 5 deforms to buffer the impact of the movable frame 3 and reduce the impact force. At the same time, the movable frame 3 is impacted and shaken, driving the support block 41 fixed on the end plate 4 to shake, so that the gravity block 44 falls from the support block 41, and the gravity block 44 falls and pulls the pull rope 43. The pull rope 43 pulls the movable frame 3 toward the fixed frame 2. The movable frame 3 retracts to the outside of the fixed frame 2 under the action of the gravity block 44, so that the double-layer structure of the movable frame 3 and the fixed frame 2 can impact the equipment in the electric meter box. The protection is carried out, and the outer dimensions of the electric meter box are reduced, the area subjected to collision is reduced, and the collision risk is reduced; when the gravity block 44 slides off the support block 41, the contact of the touch switch 45 on the support block 41 is separated from the gravity block 44, thereby triggering a switch signal. After the set time, it is considered that the collision risk is eliminated, and the servo motor drives the driving wheel 61 to rotate, thereby driving the synchronous belt 63 to move, and the synchronous belt 63 moves to drive the toggle plate 64 to move, and the toggle plate 64 moves to push the top rod 65 of the retracted movable frame 3 in the direction away from the fixed frame 2, and drives the movable frame 3 to move in the direction away from the fixed frame 2. The movable frame 3 moves and drives the pull rope 43 to lift the gravity block 44. When the gravity block 44 is lifted to the top of the support block 41, the toggle plate 64 is driven by the synchronous belt 63 to flip and move to the bottom of the synchronous belt 63, so that the toggle block is separated from the top rod 65, and the gravity block 44 falls on the support block 41, and the movable frame 3 stops moving, so that the movable frame 3 is reset to the extended state.

[0045] The parts not involved in this technical solution can be implemented by using existing technologies.

[0046] The above shows and describes the basic principles, main features and characteristics of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of the present invention to be protected includes the attached claims and their equivalents.

Claims

1. An electric meter box with good protection effect, characterized in that: The invention comprises a base plate (1), a fixed frame (2) is fixedly connected to the base plate (1), a movable frame (3) is sleeved on the outer side of the fixed frame (2), an end of the movable frame (3) away from the fixed frame (2) is fixedly connected to an end plate (4), a movable gap (31) is provided between the fixed frame (2) and the movable frame (3), an elastic element (5) is provided in the movable gap (31), one end of the elastic element (5) abuts against the fixed frame (2), and the other end of the elastic element (5) abuts against the inner side of the movable frame (3); A support block (41) is provided on one side of the end plate (4) close to the fixed frame (2); a roller (42) is provided on the end plate (4); a pull rope (43) is fixedly connected to the base plate (1); the pull rope (43) passes around the roller (42) and is fixedly connected to a gravity block (44); the gravity block (44) is placed on the support block (41); the movable frame (3) shakes under the action of an external force, causing the gravity block (44) to fall from the support block (41); and the falling of the gravity block (44) drives the pull rope (43) to pull the movable frame (3) toward the fixed frame (2); A reset drive device (6) is provided in the fixed frame (2), and the reset drive device (6) is used to drive the movable frame (3) to move in a direction away from the fixed frame (2) and drive the gravity block (44) to rise so that the gravity block (44) is lifted to the position directly above the support block (41); The reset drive device (6) comprises a driving wheel (61) and a driven wheel (62) rotatably connected to the fixed frame (2); the driving wheel (61) and the driven wheel (62) are synchronous wheels and the driving wheel (61) and the driven wheel (62) are sleeved with the same synchronous belt (63); the driving wheel (61) and the driven wheel (62) are driven by the synchronous belt (63); a toggle plate (64) is fixedly connected to the synchronous belt (63); a push rod (65) is fixedly connected to the end plate (4); the push rod (65) extends above the synchronous belt (63); the synchronous belt (63) moves to drive the toggle plate (64) to abut against the end of the push rod (65) and push the push rod (65) away from the fixed frame (2); The support block (41) is provided with a touch switch (45), and the touch switch (45) abuts against the bottom of the gravity block (44), so that when the gravity block (44) falls from the support block (41), the touch switch (45) sends a trigger signal.

2. The electric meter box with good protection effect according to claim 1 is characterized in that: A heat dissipation hole (32) is provided on the side wall of the movable frame (3), and a plurality of the heat dissipation holes (32) are provided and arranged in a row.

3. The electric meter box with good protection effect according to claim 1 is characterized in that: A stepping motor (66) is installed on the side wall of the fixed frame (2), and the output shaft of the stepping motor (66) is connected to the driving wheel (61) through gear transmission.

4. The electric meter box with good protection effect according to claim 1, characterized in that: A hinge seat (46) is fixedly connected to the end plate (4), and the roller (42) is rotatably connected to the hinge seat (46); a V-shaped groove (421) is provided on the outer surface of the roller (42), and the V-shaped groove (421) is arranged around the circumference of the roller (42).

5. The electric meter box with good protection effect according to claim 1, characterized in that: The elastic element (5) comprises a fixed cylinder (51) fixedly connected to the fixed frame (2), a telescopic column (52) being slidably connected in the fixed cylinder (51), a compression spring (53) being arranged in the fixed cylinder (51), the compression spring (53) being in contact with one end of the telescopic column (52) located in the fixed cylinder (51) so as to provide elastic force to push the telescopic column (52) out of the fixed cylinder (51); the end of the telescopic column (52) away from the fixed cylinder (51) is rotatably connected with a pulley (54), and the pulley (54) is in contact with the inner wall of the movable frame (3).

6. The electric meter box with good protection effect according to claim 1, characterized in that: A water retaining ring (21) is fixedly connected to the outer wall of the fixed frame (2). The water retaining ring (21) is arranged along the circumference of the fixed frame (2). The water retaining ring (21) is made of elastic material and the edge of the water retaining ring (21) away from the fixed frame (2) abuts against the inner wall of the movable frame (3).

7. The electric meter box with good protection effect according to claim 1, characterized in that: A cleaning brush (33) is fixedly connected to the inner wall of one end of the movable frame (3) away from the end plate (4).

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