CN107966598B - Protective device for effectively prolonging service life of metering box of electric energy meter - Google Patents
Protective device for effectively prolonging service life of metering box of electric energy meter Download PDFInfo
- Publication number
- CN107966598B CN107966598B CN201711282490.9A CN201711282490A CN107966598B CN 107966598 B CN107966598 B CN 107966598B CN 201711282490 A CN201711282490 A CN 201711282490A CN 107966598 B CN107966598 B CN 107966598B
- Authority
- CN
- China
- Prior art keywords
- box
- box body
- electric energy
- energy meter
- damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a protection device for a metering box of an electric energy meter, and belongs to the technical field of electric power facilities. The protection device for the electric energy meter measuring box comprises a measuring box body and a return mechanism, the measuring box body comprises a box body and a box door, a rotating shaft is fixedly arranged on the box body, a sleeve is fixedly arranged on the box door, the return mechanism comprises a first reset torsion spring and a first damping assembly, the first reset spring is respectively connected with the rotating shaft and the sleeve, so that the box door has a tendency that the opening end is closed relative to the box body in a rotating mode, the first damping assembly comprises two first damping rings, and the two first damping rings are mutually attached and are used for limiting the rotating speed of the box door relative to the box body. The protection device for the metering box of the electric energy meter, provided by the invention, can automatically close the box door and seal the opening end of the box body, so that the electric energy meter is ensured to be in a relatively closed environment, the electric energy meter is effectively prevented from being drenched by rain, damaged by animals and the like due to the error of workers, and the service life of instruments such as the electric energy meter is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of electric power facilities, in particular to a protection device for a metering box of an electric energy meter.
Background
The electric energy meter metering box is the total of metering appliances and auxiliary equipment necessary for metering electric energy, and comprises an electric energy meter, a metering voltage, a current transformer and a secondary circuit thereof, an electric energy metering screen, a cabinet, a box and the like.
In practical use, the electric energy meter metering box is placed in a natural environment, and in order to prevent the electric energy meter and the like from being damaged, the box door of the metering box needs to be closed. However, the staff forgets to close the box door for some reasons, so that the electric energy meter in the metering box is easily subjected to rain, animal damage and the like.
Disclosure of Invention
The invention aims to provide a protective device for effectively prolonging the service life of a metering box of an electric energy meter, which can ensure that a box door of a metering box body can be automatically closed, and the box door can seal an opening end of the box body even if workers forget to close the box door, so that the electric energy meter is ensured to be in a relatively closed environment, rain, animal damage and the like are avoided, and the service life of instruments such as the electric energy meter is effectively prolonged.
In order to solve the technical problems, the invention provides the following technical scheme:
a protection device for effectively prolonging the service life of a metering box of an electric energy meter comprises a metering box body, wherein the metering box body comprises a box body and a box door, the box body is provided with a containing cavity for containing the electric energy meter, the containing cavity is provided with an opening end, a rotating shaft is fixedly arranged on the box body, a sleeve is fixedly arranged on the box door, and the sleeve is rotatably sleeved on the rotating shaft so that the box door can open or close the opening end; protector still includes the return mechanism, the return mechanism includes first reset torsion spring and first damping subassembly, first reset spring respectively with axis of rotation and muffjoint, so that the chamber door have for the box rotates and will open end confined trend, first damping subassembly includes two first damping rings, one of them first damping ring with the axis of rotation is connected, another one first damping ring with muffjoint, two first damping ring laminates each other and is used for the restriction the chamber door for the slew velocity of box.
Furthermore, the return mechanism also comprises an adjusting piece, the adjusting piece comprises an adjusting screw rod, an adjusting nut and an adjusting pressure spring, the two first damping rings are respectively a fixed damping ring and a movable damping ring, the fixed damping ring is rigidly connected with the sleeve, the movable damping ring is sleeved on the rotating shaft in a sliding way along the axial direction of the rotating shaft, the rotating shaft penetrates through the fixed damping ring, the adjusting screw rod is fixedly arranged on the rotating shaft, the adjusting nut is sleeved on the adjusting screw rod and is in threaded connection with the adjusting screw rod, the adjusting nut can move along the axial direction of the adjusting screw rod and is close to or far away from the movable damping ring, the adjusting pressure spring is sleeved on the adjusting screw rod and respectively props against the adjusting nut and the movable damping ring, and the adjusting nut compresses the movable damping ring against the fixed damping ring.
Furthermore, the protection device further comprises a time delay mechanism, the time delay mechanism comprises a fixed part, a rotating part, a second reset torsion spring, a lead screw, a screwing head and a second damping component, the fixed part is fixedly arranged on the box body, the rotating part is rotatably arranged on the box body, the second damping component comprises two second damping rings, the two second damping rings are respectively arranged on the opposite sides of the fixed part and the rotating part, the second damping components are mutually attached and are used for limiting the rotating speed of the rotating part relative to the fixed part, a driving nut is arranged inside the rotating part, the lead screw penetrates through the driving nut and is matched with the driving nut, the screwing head is used for controlling the rotating part to rotate, a plurality of embedding holes are arranged on the sleeve, and the plurality of embedding holes are arranged along the circumferential direction of the sleeve and correspond to the lead screw, when the rotating part rotates, the lead screw can move axially along the sleeve and enter or separate from the embedding hole, when the lead screw enters the embedding hole, the box door cannot rotate relative to the box body, and when the lead screw separates from the embedding hole, the box door can rotate relative to the box body.
Furthermore, the time delay mechanism further comprises a transmission part, the screwing head and the rotating part are in transmission fit through the transmission part, the transmission part comprises a first bevel gear and a second bevel gear, the first bevel gear and the driving nut are coaxially arranged and can synchronously rotate, the second bevel gear is rotatably arranged in the box body and in transmission fit with the first bevel gear, the screwing head is connected with the second bevel gear and is used for driving the second bevel gear to rotate, the screwing head is located inside the containing cavity, and the screwing head is cylindrical.
Furthermore, the circumferential outer surface of the screwing head is provided with anti-slip threads, and the anti-slip threads extend along the axial direction of the screwing head.
Furthermore, the delay mechanism is detachably connected with the box body.
Furthermore, one side of the box body, which is close to the box door, is provided with a magnetic adsorption part, the magnetic adsorption part surrounds the periphery of the opening end, and the magnetic adsorption part and the box door are adsorbed by magnetic adsorption.
Furthermore, a drying agent box containing drying agents is arranged in the box body, and the drying agent box is detachably connected with the box body.
The invention has the following beneficial effects:
the protection device for effectively prolonging the service life of the metering box of the electric energy meter comprises a metering box body and a return mechanism, wherein the metering box body comprises a box body and a box door, a rotating shaft is fixedly arranged on the box body, a sleeve is fixedly arranged on the box door, the return mechanism comprises a first reset torsion spring and a first damping assembly, the first reset spring is respectively connected with the rotating shaft and the sleeve so that the box door has the tendency of rotating relative to the box body and closing an opening end, the first damping assembly comprises two first damping rings, one first damping ring is connected with the rotating shaft, the other first damping ring is connected with the sleeve, and the two first damping rings are mutually attached and used for limiting the rotating speed of the box door relative to the box body.
The protection device for effectively prolonging the service life of the metering box of the electric energy meter can automatically close the box door and seal the opening end of the box body, so that the electric energy meter is ensured to be in a relatively closed environment, the electric energy meter is effectively prevented from being drenched, damaged by animals and the like due to the error of workers, and the service life of instruments such as the electric energy meter is effectively prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a protection device for a metering box of an electric energy meter according to an embodiment of the present invention;
FIG. 2 is a schematic view of the return mechanism of FIG. 1 in cooperation with a batch tank body;
FIG. 3 is a schematic view of the matching relationship between the delay mechanism and the batch tank body of FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;
FIG. 5 is a schematic structural view of the delay mechanism of FIG. 4;
fig. 6 is a schematic structural view of the torsion spring.
The reference numerals correspond to the following:
10-a guard;
11-a batch tank body; 12-a return mechanism; 13-a time delay mechanism;
110-a box body; 111-a door; 112-a rotating shaft; 113-a sleeve; 114-embedding holes; 120-a first damping assembly; 121-an adjustment member; 122-adjusting screw; 123-adjusting nuts; 124-adjusting a pressure spring; 130-a stationary part; 131-a rotating part; 132-a lead screw; 133-screwing head; 134-a second damping assembly; 135-a transmission member; 136-drive nut.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a protection device for effectively prolonging the service life of a metering box of an electric energy meter according to an embodiment of the present invention; FIG. 2 is a schematic view of the return mechanism of FIG. 1 in cooperation with a batch tank body; FIG. 3 is a schematic view of the matching relationship between the delay mechanism and the batch tank body of FIG. 1; FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective; FIG. 5 is a schematic structural view of the delay mechanism of FIG. 4; fig. 6 is a schematic structural view of the torsion spring.
Referring to fig. 1, an embodiment of the present invention provides a protection device 10 for effectively prolonging a service life of a metering box of an electric energy meter, where the protection device 10 includes a metering box body 11, a recovery mechanism 12, and a delay mechanism 13
The batch tank body 11 includes a tank body 110 and a tank door 111.
The box body 110 is provided with an accommodating cavity for accommodating the electric energy meter, the accommodating cavity is provided with an opening end, a rotating shaft 112 is fixedly arranged on the box body 110, a sleeve 113 is fixedly arranged on the box door 111, and the sleeve 113 is rotatably sleeved on the rotating shaft 112 so that the box door 111 can open or close the opening end;
one side of the box body 110 close to the box door 111 is provided with a magnetic adsorption part, the magnetic adsorption part surrounds the periphery of the opening end, and the magnetic adsorption part and the box door 111 are adsorbed through the magnetic adsorption effect.
A desiccant box containing a desiccant is disposed in the box body 110, and the desiccant box is detachably connected to the box body 110.
Of course, the magnetic attraction section, the desiccant cartridge, and the like may be eliminated.
Referring to fig. 2, the restoring mechanism 12 includes a first return torsion spring, a first damping member 120, and an adjusting member 121.
The first return spring is connected to the rotating shaft 112 and the sleeve 113, respectively, so that the door 111 has a tendency to rotate with respect to the cabinet 110 and close the open end.
The first damping assembly 120 includes two first damping rings, one of which is connected to the rotating shaft 112, and the other of which is connected to the sleeve 113, and the two first damping rings are attached to each other and are used to limit the rotating speed of the door 111 relative to the cabinet 110.
The structure of the adjusting member 121 can adopt, but is not limited to, the following schemes: the adjusting member 121 includes an adjusting screw 122, an adjusting nut 123, and an adjusting compression spring 124.
The two first damping rings are respectively a fixed damping ring and a movable damping ring, the fixed damping ring is rigidly connected to the sleeve 113, the movable damping ring is slidably sleeved on the rotating shaft 112 along the axial direction of the rotating shaft 112, and the rotating shaft 112 penetrates through the fixed damping ring.
Adjusting screw 122 is fixedly arranged on rotating shaft 112, adjusting nut 123 is sleeved on adjusting screw 122, adjusting nut 123 is in threaded connection with adjusting screw 122, adjusting nut 123 can move along the axial direction of adjusting screw 122 and is close to or far away from the movable damping ring, adjusting pressure spring 124 is sleeved on adjusting screw 122 and is respectively abutted against adjusting nut 123 and the movable damping ring, and adjusting nut 123 compresses the movable damping ring against the fixed damping ring.
The time delay mechanism 13 and the box 110 may be detachably connected.
Referring to fig. 3-5, the delay mechanism 13 may be an electronic delay, and in this embodiment, the structure of the delay mechanism 13 may adopt, but is not limited to, the following schemes: the time delay mechanism 13 includes a fixing portion 130, a rotating portion 131, a second return torsion spring, a lead screw 132, a screwing head 133, a second damping member 134, and a transmission member 135.
The fixing portion 130 is fixedly disposed on the case 110, the rotating portion 131 is rotatably disposed on the case 110, the second damping assembly 134 includes two second damping rings, the two second damping rings are disposed on opposite sides of the fixing portion 130 and the rotating portion 131, and the second damping assemblies 134 are attached to each other and are used for limiting a rotating speed of the rotating portion 131 relative to the fixing portion 130.
The rotating portion 131 is provided inside with a driving nut 136, the screw 132 penetrates through the driving nut 136 and is matched with the driving nut 136, the screwing head 133 is used for controlling the rotating portion 131 to rotate, the sleeve 113 is provided with a plurality of embedding holes 114, and the plurality of embedding holes 114 are arranged along the circumferential direction of the sleeve 113 and correspond to the screw 132.
When the rotating portion 131 rotates, the screw 132 can move along the axial direction of the sleeve 113 and enter or leave the insertion hole 114, when the screw 132 enters the insertion hole 114, the door 111 cannot rotate relative to the box body 110, and when the screw 132 leaves the insertion hole 114, the door 111 can rotate relative to the box body 110.
The screwing head 133 is in transmission fit with the rotating part 131 through a transmission member 135, and the transmission member 135 comprises a first bevel gear and a second bevel gear.
The first bevel gear and the driving nut 136 are coaxially arranged and can synchronously rotate, and the second bevel gear is rotatably arranged in the box body 110 and is in transmission fit with the first bevel gear.
The screwing head 133 is connected with the second bevel gear and used for driving the second bevel gear to rotate, the screwing head 133 is located inside the accommodating cavity, and the screwing head 133 is cylindrical.
The circumferential outer surface of the screw head 133 is provided with anti-slip threads extending in the axial direction of the screw head 133.
The protection device 10 for effectively prolonging the service life of the electric energy meter measuring box comprises a measuring box body 11 and a return mechanism 12, wherein the measuring box body 11 comprises a box body 110 and a box door 111, a rotating shaft 112 is fixedly arranged on the box body 110, a sleeve 113 is fixedly arranged on the box door 111, the return mechanism 12 comprises a first return torsion spring and a first damping component 120, the first return spring is respectively connected with the rotating shaft 112 and the sleeve 113 so that the box door 111 has a tendency of rotating relative to the box body 110 and closing an opening end, the first damping component 120 comprises two first damping rings, one first damping ring is connected with the rotating shaft 112, the other first damping ring is connected with the sleeve 113, and the two first damping rings are mutually attached and used for limiting the rotating speed of the box door 111 relative to the box body 110.
The protection device 10 for the metering box of the electric energy meter can automatically close the box door 111 and close the open end of the box body 110, ensures that the electric energy meter is in a relatively closed environment, effectively avoids the electric energy meter from being drenched and damaged by animals due to the error of workers, and effectively prolongs the service life of instruments such as the electric energy meter.
In addition, as shown in fig. 6, a plurality of torsion springs are present in the present embodiment, and the structure of the torsion springs may adopt the prior art, and examples are given here: a pole is worn to locate in a root canal, and the torsional spring is located intraductal and the cover is located the pole, the both ends of torsional spring respectively with pole and pipe fixed connection. The torsion spring structure in the present embodiment can be adopted but is not limited to this example, and is not drawn one by one in the present embodiment.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (5)
1. The protection device for effectively prolonging the service life of the electric energy meter measuring box comprises a measuring box body (11), wherein the measuring box body (11) comprises a box body (110) and a box door (111), the box body (110) is provided with a containing cavity for containing an electric energy meter, the containing cavity is provided with an opening end, a rotating shaft (112) is fixedly arranged on the box body (110), a sleeve (113) is fixedly arranged on the box door (111), and the sleeve (113) is rotatably sleeved on the rotating shaft (112) so that the box door (111) can open or close the opening end; the method is characterized in that: the return mechanism (12) comprises a first return torsion spring and a first damping component (120), the first return torsion spring is respectively connected with the rotating shaft (112) and the sleeve (113) so that the box door (111) has a tendency of rotating relative to the box body (110) and closing the opening end, the first damping component (120) comprises two first damping rings, one of the first damping rings is connected with the rotating shaft (112), the other one of the first damping rings is connected with the sleeve (113), and the two first damping rings are mutually attached and used for limiting the rotating speed of the box door (111) relative to the box body (110);
still include time delay mechanism (13), time delay mechanism (13) includes fixed part (130), rotation portion (131), second reset torsion spring, lead screw (132), revolves first (133) and second damping component (134), fixed part (130) fixed set up in box (110), rotation portion (131) rotatable set up in box (110), second damping component (134) include two second damping rings, two the second damping ring sets up respectively in fixed part (130) and the opposite side of rotation portion (131), second damping component (134) laminate each other and are used for restricting rotation portion (131) for the slew velocity of fixed part (130), the inside of rotation portion (131) is provided with drive nut (136), lead screw (132) wear to locate drive nut (136) and with drive nut (136) cooperation, the screwing head (133) is used for controlling the rotating part (131) to rotate, a plurality of embedding holes (114) are formed in the sleeve (113), the embedding holes (114) are formed in the circumferential direction of the sleeve (113) and correspond to the lead screw (132), when the rotating part (131) rotates, the lead screw (132) can move axially along the sleeve (113) and enter or separate from the embedding holes (114), when the lead screw (132) enters the embedding holes (114), the box door (111) cannot rotate relative to the box body (110), and when the lead screw (132) separates from the embedding holes (114), the box door (111) can rotate relative to the box body (110);
the restoring mechanism (12) further comprises an adjusting part (121), the adjusting part (121) comprises an adjusting screw (122), an adjusting nut (123) and an adjusting pressure spring (124), the two first damping rings are respectively a fixed damping ring and a movable damping ring, the fixed damping ring is rigidly connected to the sleeve (113), the movable damping ring is sleeved on the rotating shaft (112) along the axial direction of the rotating shaft (112) in a sliding manner, the rotating shaft (112) penetrates through the fixed damping ring, the adjusting screw (122) is fixedly arranged on the rotating shaft (112), the adjusting nut (123) is sleeved on the adjusting screw (122) and the adjusting nut (123) is in threaded connection with the adjusting screw (122), and the adjusting nut (123) can move along the axial direction of the adjusting screw (122) and is close to or far away from the movable damping ring, the adjusting pressure spring (124) is sleeved on the adjusting screw rod (122) and respectively props against the adjusting nut (123) and the movable damping ring, and the adjusting nut (123) presses the movable damping ring against the fixed damping ring;
the time delay mechanism (13) further comprises a transmission piece (135), the screwing head (133) and the rotating part (131) are in transmission fit through the transmission piece (135), the transmission piece (135) comprises a first bevel gear and a second bevel gear, the first bevel gear and the driving nut (136) are coaxially arranged and can synchronously rotate, the second bevel gear is rotatably arranged in the box body (110) and is in transmission fit with the first bevel gear, the screwing head (133) is connected with the second bevel gear and is used for driving the second bevel gear to rotate, the screwing head (133) is located inside the containing cavity, and the screwing head (133) is cylindrical.
2. The protective device for effectively prolonging the service life of the metering box of the electric energy meter according to claim 1, wherein: the anti-skidding thread is arranged on the circumferential outer surface of the screwing head (133) and extends along the axial direction of the screwing head (133).
3. The protective device for effectively prolonging the service life of the metering box of the electric energy meter according to claim 1, wherein: the delay mechanism (13) is detachably connected with the box body (110).
4. The protective device for effectively prolonging the service life of the metering box of the electric energy meter according to claim 1, wherein: one side of the box body (110) close to the box door (111) is provided with a magnetic adsorption part, the magnetic adsorption part surrounds the periphery of the opening end, and the magnetic adsorption part and the box door (111) are adsorbed through the magnetic adsorption effect.
5. The protective device for effectively prolonging the service life of the metering box of the electric energy meter according to claim 1, wherein: a drying agent box containing drying agent is arranged in the box body (110), and the drying agent box is detachably connected with the box body (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282490.9A CN107966598B (en) | 2017-12-07 | 2017-12-07 | Protective device for effectively prolonging service life of metering box of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282490.9A CN107966598B (en) | 2017-12-07 | 2017-12-07 | Protective device for effectively prolonging service life of metering box of electric energy meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107966598A CN107966598A (en) | 2018-04-27 |
| CN107966598B true CN107966598B (en) | 2020-03-31 |
Family
ID=61998375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711282490.9A Expired - Fee Related CN107966598B (en) | 2017-12-07 | 2017-12-07 | Protective device for effectively prolonging service life of metering box of electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107966598B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133343B (en) * | 2019-06-14 | 2024-08-06 | 宁波功成电气有限公司 | Damping door of electric energy metering box |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870911A (en) * | 1996-01-22 | 1999-02-16 | Dewalch; Norman Binz | Electric meter box lock |
| JP2010135176A (en) * | 2008-12-04 | 2010-06-17 | Chugoku Electric Power Co Inc:The | Screw-member looseness preventing unit and terminal arrangement using same |
| CN203296553U (en) * | 2013-04-02 | 2013-11-20 | 能诚集团有限公司 | Hinged door closer |
| CN106338631A (en) * | 2016-11-16 | 2017-01-18 | 国网山东省电力公司蓬莱市供电公司 | Protection device for metering box of electric energy meter |
| CN106556723A (en) * | 2016-11-28 | 2017-04-05 | 国网山东省电力公司蓬莱市供电公司 | A kind of box of electric energy meter preventer |
| CN106841722A (en) * | 2017-01-23 | 2017-06-13 | 晋江市速龙电子科技有限公司 | A kind of ammeter box with anti-theft feature |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044415A (en) * | 2015-09-08 | 2015-11-11 | 国家电网公司 | Power metering box multiple-protection device |
| CN106918729A (en) * | 2017-04-19 | 2017-07-04 | 王慧超 | A kind of efficient fixed ammeter box erecting device |
-
2017
- 2017-12-07 CN CN201711282490.9A patent/CN107966598B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870911A (en) * | 1996-01-22 | 1999-02-16 | Dewalch; Norman Binz | Electric meter box lock |
| JP2010135176A (en) * | 2008-12-04 | 2010-06-17 | Chugoku Electric Power Co Inc:The | Screw-member looseness preventing unit and terminal arrangement using same |
| CN203296553U (en) * | 2013-04-02 | 2013-11-20 | 能诚集团有限公司 | Hinged door closer |
| CN106338631A (en) * | 2016-11-16 | 2017-01-18 | 国网山东省电力公司蓬莱市供电公司 | Protection device for metering box of electric energy meter |
| CN106556723A (en) * | 2016-11-28 | 2017-04-05 | 国网山东省电力公司蓬莱市供电公司 | A kind of box of electric energy meter preventer |
| CN106841722A (en) * | 2017-01-23 | 2017-06-13 | 晋江市速龙电子科技有限公司 | A kind of ammeter box with anti-theft feature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107966598A (en) | 2018-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108089041B (en) | Electric energy meter metering box protector | |
| CN103835612A (en) | Door opening and closing device | |
| KR102516685B1 (en) | Hand-held power tool with protected transmission | |
| CN203427906U (en) | Rotatable cover plate | |
| CN107966598B (en) | Protective device for effectively prolonging service life of metering box of electric energy meter | |
| US10082193B2 (en) | Actuator | |
| US20140356200A1 (en) | Electric Pump | |
| TWI339846B (en) | Cable transit device | |
| DE202012000412U1 (en) | Electric geared motor for furniture adjustment | |
| US20160084346A1 (en) | Actuator | |
| CN103545069A (en) | Sleeve rod potentiometer | |
| CN201914787U (en) | Damping wire take-up device | |
| US9438095B2 (en) | Transmission device | |
| CN204088683U (en) | A kind of protection against electric shock assembly of card insert type power supply | |
| CN105332558A (en) | Lock hole protection device | |
| CN110509982A (en) | Electric power steering seals valve system | |
| CN205338625U (en) | Relief valve and pressure cooker for pressure cooker | |
| CN205172179U (en) | Tool to lock hole protection device | |
| CN107230593B (en) | A kind of elastic energy storage transmission mechanism | |
| JP5320159B2 (en) | Automatic screwing machine | |
| CN209587272U (en) | A kind of closed etch-proof more swing mechanisms | |
| CN208409737U (en) | The driving-shaft assembly accessory of torque input end and torque output electric insulation | |
| CN203404427U (en) | Online-detachable multifunctional combined valve | |
| CN106374668A (en) | Motor waterproof structure | |
| CN106225397B (en) | Refrigerator with detachable power supply line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20211207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |