Distribution automation feeder terminal

Abstract

The invention relates to the technical field of power distribution, in particular to a power distribution automation feeder terminal which comprises a box body, the box body is connected with an outer cover through a hinge force storage assembly, an inner cover is further installed in the box body through a hinge, and the hinge force storage assembly is used for hinging the outer cover to the box body and comprises an upper rotating shaft and a lower rotating shaft which are fixedly connected with the outer cover. The bottom end of the rotating shaft is connected with a connecting circular plate, the connecting circular plate is connected with a torsion spring, the other end of the torsion spring is connected with a rotating circular plate, the rotating circular plate is sleeved with a mounting cylinder, the height of the rotating circular plate is fixed in the mounting cylinder, and the rotating circular plate is in threaded connection with a threaded rod. Pistons are connected to the ends of the threaded rods, and an air pressure cavity is formed between the two pistons and the mounting cylinder and connected with a driving mechanism used for closing the inner cover; constructors can be reminded through door closing force, the inner door can be driven to be closed through stored energy of the torsion shaft, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution, in particular to a kind of distribution automation feeder terminal. BACKGROUND

[0002] Feeder terminal is the key equipment in power distribution network automation system, mainly used for monitoring, protection and control of distribution line. As one of the core components of intelligent power distribution network, feeder terminal collects voltage, current, power and other electrical parameters of line in real time, and transmits data to master station system combined with communication technology, to realize remote monitoring and fault handling of distribution line.

[0003] The Chinese invention patent with publication number CN109245296A provides an automatic feeder terminal, which is hinged with an outer cover plate located outside the inner cover plate on the shell, and further provided with a detection device for detecting whether the inner cover plate and the shell are closed and outputting a detection signal, a control device coupled to the detection device and receiving the detection signal to output a control signal, and an execution device coupled to the control device and receiving the control signal to control the warning light to warn. The execution device includes a warning light, which issues a warning when the inner cover plate and the shell are not closed.

[0004] However, the applicant finds that the prior art at least has the following problems: The prior art can only remind the construction personnel when the inner cover plate is not closed, and cannot achieve automatic closing. If the construction personnel do not pay attention to the alarm, there is still a risk. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a power distribution automation feeder terminal to solve the problem of not being able to automatically drive to close when the inner cover is not closed.

[0006] In order to achieve the above purpose, the present application provides a power distribution automation feeder terminal, which comprises a box body, the box body is connected with an outer cover through a hinge force storage assembly, and the box body is further provided with an inner cover inside and installed through a hinge. The hinge force storage assembly is used to hinge the outer cover on the box body, and comprises: The upper and lower groups are respectively fixedly connected with a rotating shaft, the rotating shaft is cooperatively connected with a rotating sleeve, the rotating sleeve is fixedly installed on the side surface of the box body, the bottom end of the rotating shaft is connected with a connecting circular plate, the connecting circular plate is connected with a torsion spring, the other end of the torsion spring is connected with a rotating circular plate, the rotating circular plate is externally sleeved with a mounting cylinder, the rotating circular plate is fixed in height in the mounting cylinder, the rotating circular plate is threadedly connected with a threaded rod, the end of the threaded rod is connected with a piston, and the two pistons form a gas pressure cavity with the mounting cylinder. The gas pressure cavity is connected with a driving mechanism for closing the inner cover; When the rotating circular plate drives the threaded rod to rotate, the circumferential rotation of the threaded rod is limited by the anti-rotation restraint member, so that the threaded rod can only move axially along the mounting cylinder, and the gas pressure cavity is extruded to supply energy to the driving mechanism; The electric pin is used for limiting axial movement of the threaded rod, and is electrically connected with a press switch used for monitoring opening and closing states of the inner cover and the outer cover.

[0007] Optionally, the anti-rotation constraint member comprises a guide rail fixedly installed on the inner wall of the mounting cylinder, and a limiting block fixedly connected to the side surface of the threaded rod, the limiting block being matched with the guide rail to limit rotation of the threaded rod.

[0008] Optionally, the limiting block is provided with a clamping groove matched with the electric pin.

[0009] Optionally, the gas pressure cavity is connected with a connecting air channel, the connecting air channel is connected with a contraction cylinder, an arc-shaped air channel is matched and installed in the contraction cylinder, the arc-shaped air channel is fixedly connected with the outer cover, a cover air channel is arranged in the outer cover, and the cover air channel is communicated with the arc-shaped air channel and the driving mechanism.

[0010] Optionally, the driving mechanism comprises a mounting seat fixedly installed on the inner side of the outer cover, a rotary air cylinder is installed on the mounting seat, the rotary air cylinder is communicated with the cover air channel, an elastic connecting rod is connected to the output end of the rotary air cylinder, mounting clamping plates are installed at the end portions of the elastic connecting rod, and at least one set of rollers are installed between the mounting clamping plates.

[0011] Optionally, the elastic connecting rod is in abutting contact with the inner cover in the closed state of the outer cover.

[0012] Optionally, the outer cover is connected with a connecting block, and the connecting block is fixedly connected with the rotating shaft.

[0013] Optionally, a door lock is arranged on the outer cover and used for locking the outer cover.

[0014] Optionally, the press switch comprises an outer cover door frame switch and an inner cover door frame switch, the outer cover door frame switch is used for detecting the opening and closing state of the outer cover, the inner cover door frame switch is used for monitoring the opening and closing state of the inner cover, the outer cover door frame switch and the inner cover door frame switch are both normally closed micro switches, when the door is closed, the switches are pressed down by the door frame and are in an open state, when the door is opened, the switches are reset and are in a closed state, the electric pin, the outer cover door frame switch and the inner cover door frame switch are connected in series, and the electric pin is powered only when the outer cover door frame switch and the inner cover door frame switch are both closed, that is, when the outer cover and the inner cover are both opened.

[0015] Optionally, a limiting groove is installed on the inner wall of the mounting cylinder, and the limiting groove is used for limiting axial movement of the rotary disc.

[0016] The beneficial effects of this invention are as follows: The power distribution automation feeder terminal provided by this invention allows for several advantages. First, if the operator closes the inner cover after completing their work, a press switch controls the electric pin to close, and the threaded rod moves axially without restriction. This ensures that closing the outer cover is unaffected. Second, if the inner cover is not closed when the outer cover is closed, the electric pin restricts the axial movement of the threaded rod. During the closing process, the torsion spring stores energy. The resistance encountered by the outer cover during closing serves as a reminder to the operator. After the outer cover is closed, the electric pin closes, the threaded rod is released from restriction, and the torsion spring releases its energy, driving the two sets of threaded rods to move relative to each other. This increases the pressure in the pneumatic chamber, powering the drive mechanism and closing the inner cover. This not only alerts the operator that the inner cover is not closed but also allows the inner cover to close automatically after the operator closes the outer cover without intervention, reducing safety hazards. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall view of a power distribution automation feeder terminal according to an embodiment of the present invention; Figure 2 This is a side view of a power distribution automation feeder terminal according to an embodiment of the present invention; Figure 3 for Figure 2 A magnified schematic diagram of a portion of the structure in section A. Figure 4 This is a schematic diagram of the outer cover of a power distribution automation feeder terminal when it is opened, according to an embodiment of the present invention. Figure 5 This is a schematic diagram of a drive mechanism for a power distribution automation feeder terminal according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a hinged power storage component for a power distribution automation feeder terminal according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of a hinged power storage component of a power distribution automation feeder terminal according to an embodiment of the present invention; Figure 8 for Figure 7 A schematic diagram of a partial structure; Figure 9 for Figure 8 A magnified schematic diagram of a local structure in section B.

[0019] The diagram is marked as follows: 101. Housing; 102. Outer cover; 103. Door lock; 104. Inner cover; 105. Hinge; 201. Hinge power storage assembly; 202. Connecting block; 203. Rotating shaft; 204. Rotating sleeve; 205. Mounting cylinder; 206. Arc-shaped air passage; 207. Contraction cylinder; 208. Connecting air passage; 209. Connecting circular plate; 210. Torsion spring; 211. Rotating circular plate; 212. Threaded rod; 213. Piston; 214. Air pressure chamber; 215. Limiting groove; 216. Limiting block; 217. Guide rail; 218. Electric pin; 301. Drive mechanism; 302. Mounting base; 303. Rotary cylinder; 304. Elastic connecting rod; 305. Mounting clamp; 306. Roller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 9 As shown, a specific embodiment of the present invention provides a power distribution automation feeder terminal, including a housing 101. The housing 101 is connected to an outer cover 102 via a hinged power storage assembly 201. An inner cover 104 is also installed inside the housing 101 via a hinge 105. The hinged power storage assembly 201 is used to hinge the outer cover 102 to the housing 101, and includes: The upper and lower groups are fixedly connected with the outer cover 102 respectively, and the rotating shaft 203 is connected with the rotating sleeve 204 in a matched manner, the rotating sleeve 204 is fixedly installed on the side surface of the box body 101, the bottom end of the rotating shaft 203 is connected with the connecting circular plate 209, the connecting circular plate 209 is connected with the torsion spring 210, the other end of the torsion spring 210 is connected with the rotating circular plate 211, the rotating circular plate 211 is externally sleeved with the mounting cylinder 205, the rotating circular plate 211 is fixed in height in the mounting cylinder 205, the rotating circular plate 211 is threadedly connected with the threaded rod 212, the end of the threaded rod 212 is connected with the piston 213, the two pistons 213 and the mounting cylinder 205 form the air pressure cavity 214, and the air pressure cavity 214 is connected with the driving mechanism 301 for closing the inner cover 104. When the rotating circular plate 211 drives the threaded rod 212 to rotate, the circumferential rotation of the threaded rod 212 is limited by the anti-rotation constraint part, so that the threaded rod 212 can only move axially along the mounting cylinder 205, and the air pressure cavity 214 is extruded to supply energy for the driving mechanism 301. The electric pin 218 is used for limiting the axial movement of the threaded rod 212, and is electrically connected with the press switch, the press switch is used for monitoring the opening and closing state of the inner cover 104 and the outer cover 102, when the inner cover 104 is opened, the electric pin 218 is started, and when the outer cover 102 is closed, the electric pin 218 is closed.

[0023] In use, when the construction personnel open the outer cover 102 to work, at this time, the inner cover 104 has not been opened, the electric pin 218 is not started, the axial movement of the threaded rod 212 is not limited, the rotating shaft 203 rotates, drives the connecting circular plate 209 to rotate, and then drives the rotating circular plate 211 to rotate, the rotating circular plate 211 threadedly drives the threaded rod 212 to move, at this time, the movement of the outer cover 102 is not limited, when the construction personnel further open the inner cover 104 to work, the press switch triggers, the electric pin 218 is started, the axial movement of the threaded rod 212 is limited, if the construction personnel completes the work and closes the inner cover 104, the press switch controls the electric pin 218 to be closed, the axial movement of the threaded rod 212 is not limited, then when the outer cover 102 is closed, it is not affected, if the inner cover 104 is not closed when the outer cover 102 is closed, the electric pin 218 limits the axial movement of the threaded rod 212, in the closing process of the outer cover 102, the torsion spring 210 is energized, the outer cover 102 encounters resistance in the closing process, reminding the construction personnel, after the outer cover 102 is closed, the electric pin 218 is closed, the threaded rod 212 is released from the limitation, the torsion spring 210 releases energy, drives the two groups of threaded rods 212 to relatively move, the pressure in the air pressure cavity 214 is increased, energy is supplied for the driving mechanism 301, and the inner cover 104 is closed.

[0024] In some optional specific embodiments, as Figure 9As shown, the anti-rotation constraint comprises a guide rail 217 fixedly installed on the inner wall of the mounting cylinder 205, and a limiting block 216 fixedly connected to the side of the threaded rod 212, which is adapted to the guide rail 217 to limit the rotation of the threaded rod 212.

[0025] In some optional embodiments, the limiting block 216 is provided with a clamping groove on the side, and the electric pin 218 is adapted to the clamping groove. When the electric pin 218 is activated and abuts against the limiting block 216, the friction between the clamping groove and the electric pin 218 limits the axial movement of the threaded rod 212.

[0026] In some optional embodiments, as shown in the figure, Figure 7 As shown, the gas pressure cavity 214 is connected with a connecting air duct 208, the connecting air duct 208 is connected with a contraction cylinder 207, the contraction cylinder 207 is adapted to install an arc-shaped air duct 206, the arc-shaped air duct 206 is fixedly connected with the outer cover 102, and the outer cover 102 is provided with a cover air duct, which is communicated with the arc-shaped air duct 206 and the driving mechanism 301. During the opening and closing of the outer cover 102, the arc-shaped air duct 206 is contracted in the contraction cylinder 207, and the whole set of air paths are kept sealed.

[0027] In some optional embodiments, as shown in the figure, Figure 5 As shown, the driving mechanism 301 comprises a mounting seat 302 fixedly installed on the inner side of the outer cover 102, a rotary air cylinder 303 installed on the mounting seat 302, the rotary air cylinder 303 being communicated with the cover air duct, an elastic connecting rod 304 connected to the output end of the rotary air cylinder 303, mounting clamping plates 305 installed on the end of the elastic connecting rod 304, and at least one set of rollers 306 installed between the mounting clamping plates 305. In use, when the gas in the gas pressure cavity 214 is compressed, the compressed gas enters the rotary air cylinder 303 through the cover air duct, the rotary air cylinder 303 drives the elastic connecting rod 304 to rotate, thereby actuating the inner cover 104 to close, and the rollers 306 are in contact with the inner cover 104 to facilitate the completion of the actuation.

[0028] In some optional embodiments, the elastic connecting rod 304 is in abutment with the inner cover 104 in the closed state of the outer cover 102. The elastic connecting rod 304 can play a certain damping effect and make the inner cover 104 abut tightly.

[0029] In some optional embodiments, as shown in the figure, Figures 1 to 6 As shown, the outer cover 102 is connected with a connecting block 202, and the connecting block 202 is fixedly connected with the rotating shaft 203.

[0030] In some optional embodiments, as shown in the figure, Figure 1 As shown, the outer cover 102 is provided with a door lock 103 for locking the outer cover 102.

[0031] In some optional embodiments, the press switch comprises an outer cover door frame switch and an inner cover door frame switch, the outer cover door frame switch is used to detect the switch state of the outer cover 102, and the inner cover door frame switch is used to monitor the switch state of the inner cover 104, both the outer cover door frame switch and the inner cover door frame switch are normally closed micro switches, when the door is closed, the switch is pressed down by the door frame, and is in an open state, when the door is opened, the switch is reset, and is in a closed state, the electric pin 218, the outer cover door frame switch and the inner cover door frame switch are connected in series, and only when both the outer cover door frame switch and the inner cover door frame switch are closed, that is, both the outer cover 102 and the inner cover 104 are opened, the electric pin 218 is powered on.

[0032] In some optional embodiments, as shown in Figure 9 A limiting groove 215 is mounted on the inner wall of the mounting cylinder 205, and the limiting groove 215 is used to limit the axial movement of the rotating disc 211.

[0033] The working principle of the present application is as follows: in use, when the construction personnel open the outer cover 102 to work, at this time, the inner cover 104 has not been opened, the electric pin 218 is not started, the axial movement of the threaded rod 212 is not limited, the rotating shaft 203 rotates, drives the connecting disc 209 to rotate, and then drives the rotating disc 211 to rotate, the rotating disc 211 drives the threaded rod 212 to move in a threaded manner, at this time, the movement of the outer cover 102 is not limited, when the construction personnel further open the inner cover 104 to work, the press switch is triggered, the electric pin 218 is started, the axial movement of the threaded rod 212 is limited, if the construction personnel closes the inner cover 104 after completing the work, the press switch controls the electric pin 218 to be closed, the axial movement of the threaded rod 212 is not limited, then the closing of the outer cover 102 is not affected, if the inner cover 104 is not closed when the outer cover 102 is closed, the electric pin 218 limits the axial movement of the threaded rod 212, the outer cover 102 is closed in the process, the torsional spring 210 is energized, the outer cover 102 encounters resistance in the closing process, reminding the construction personnel, after the outer cover 102 is closed, the electric pin 218 is closed, the threaded rod 212 is released from the limitation, the torsional spring 210 releases energy, drives the relative movement of the two sets of threaded rods 212, and the pressure in the air pressure cavity 214 is increased, to supply energy for the driving mechanism 301, and drive the inner cover 104 to be closed.

[0034] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary, and is not intended to imply that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0035] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A power distribution automation feeder terminal comprising a box (101) to which an outer cover (102) is connected by a hinge power storage assembly (201), and inside the box (101) an inner cover (104) is installed by a hinge (105), the hinge power storage assembly (201) is used to hinge the outer cover (102) to the box (101), characterized in that, The utility model relates to a kind of box, including: Upper and lower groups are fixedly connected with outer cover (102) rotating shaft (203) respectively, rotating shaft (203) cooperatively connected with rotating sleeve (204), rotating sleeve (204) is fixedly installed on the side of box (101), rotating shaft (203) bottom end is connected with connecting round plate (209), connecting round plate (209) is connected with torsion spring (210), torsion spring (210) other end is connected with rotating round plate (211), rotating round plate (211) is externally sleeved with installation cylinder (205), rotating round plate (211) is fixed in installation cylinder (205) height, rotating round plate (211) is threadedly connected with threaded rod (212), threaded rod (212) end is connected with piston (213), two pistons (213) and installation cylinder (205) between form gas pressure cavity (214), gas pressure cavity (214) is connected with the drive mechanism (301) for closing inner cover (104); Rotating round plate (211) drive threaded rod (212) rotates, is limited by anti-rotation restraint piece when rotating, so that threaded rod (212) can only move axially along installation cylinder (205), extrude gas pressure cavity (214) to drive mechanism (301) power supply; Electric pin (218) is used for limiting threaded rod (212) axial movement, electrically connected with press switch, press switch is used to monitor the opening and closing state of inner cover (104) and outer cover (102), when inner cover (104) is opened, electric pin (218) is started, and outer cover (102) is closed, and electric pin (218) is closed.

2. A power distribution automation feeder terminal according to claim 1, wherein, The anti-rotation restraint piece includes guide rail (217) fixedly installed on the inner wall of installation cylinder (205), limit block (216) is fixedly connected on the side surface of threaded rod (212), limit block (216) is matched with guide rail (217), and the rotation of threaded rod (212) is limited.

3. A power distribution automation feeder terminal according to claim 1, wherein, The side surface of the limit block (216) is provided with a clamping groove, and the electric pin (218) is matched with the clamping groove.

4. The power distribution automation feeder terminal of claim 1, wherein, The gas pressure cavity (214) is connected with a connecting air duct (208), the connecting air duct (208) is connected with a contraction cylinder (207), the contraction cylinder (207) is fitted with an arc air duct (206), the arc air duct (206) is fixedly connected with the outer cover (102), the outer cover (102) is provided with a cover air duct, and the cover air duct is communicated with the arc air duct (206) and the drive mechanism (301).

5. A power distribution automation feeder terminal according to claim 1, wherein, The drive mechanism (301) includes a mounting seat (302) fixedly installed on the inner side of the outer cover (102), a rotary cylinder (303) mounted on the mounting seat (302), the rotary cylinder (303) is communicated with the cover air duct, the output end of the rotary cylinder (303) is connected with an elastic connecting rod (304), the end of the elastic connecting rod (304) is provided with a mounting clamping plate (305), and at least one set of rollers (306) is mounted between the mounting clamping plates (305).

6. A power distribution automation feeder terminal according to claim 5, wherein, The elastic connecting rod (304) is in abutting state with the inner cover (104) under the closed state of the outer cover (102).

7. A power distribution automation feeder terminal according to claim 1, wherein, The outer cover (102) is connected with a connecting block (202), and the connecting block (202) is fixedly connected with the rotating shaft (203).

8. A power distribution automation feeder terminal according to claim 1, wherein, The outer cover (102) is provided with a door lock (103) for locking the outer cover (102).

9. A power distribution automation feeder terminal according to claim 1, wherein, The press switch comprises an outer cover door frame switch and an inner cover door frame switch, the outer cover door frame switch is used for detecting the switch state of the outer cover (102), the inner cover door frame switch is used for monitoring the switch state of the inner cover (104), the outer cover door frame switch and the inner cover door frame switch are both normally closed micro switches, when the door is closed, the switch is pressed down by the door frame and is in an open state, when the door is opened, the switch is reset and is in a closed state, the electric pin (218), the outer cover door frame switch and the inner cover door frame switch are connected in series, only when the outer cover door frame switch and the inner cover door frame switch are both closed, that is, the outer cover (102) and the inner cover (104) are both opened, the electric pin (218) is powered on.

10. The power distribution automation feeder terminal of claim 1, wherein, A limiting groove (215) is mounted on the inner wall of the mounting cylinder (205), and the limiting groove (215) is used for limiting the axial movement of the rotating disc (211).

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