Outdoor current transformer

Abstract

The utility model provides an outdoor current transformer and relates to the technical field of current transformers. The top end surface of the fixed base is fixedly connected with a lower shell; the top end face of the lower shell is connected with an upper shell through a hinge. A lower semicircular iron core is arranged in the lower shell; an upper semicircular iron core is arranged in the upper shell; the positions of the upper semicircular iron core and the lower semicircular iron core are aligned; a binding post is fixedly connected to the center of the front end face of the lower shell. An equipment wire is arranged in the binding post; and the tail end of the equipment wire is fixedly connected with a wiring port. An operating handle is pulled to drive a connecting rod to move, a connecting swing rod drives a limiting insertion column to move, the limiting insertion column is separated from a limiting vertical plate, then an upper shell and a lower shell can be opened, and the problem that after a worker screws down bolts for fixing the upper shell and the lower shell in sequence with the help of a tool, the worker needs to screw down the bolts in sequence is solved. And the upper shell and the lower shell can only be opened to overhaul the current transformer, so that the operation is relatively tedious.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer used outdoors. Background Art

[0002] Various electromagnetic interferences may exist in outdoor environments. To prevent these interferences from affecting the accuracy of current measurement, workers usually install current transformers on outdoor power systems to ensure the accuracy of current measurement. Existing current transformers usually consist of an upper shell, a lower shell, an upper semicircular iron core, and a lower upper semicircular iron core.

[0003] For example: The utility model with application number CN202023164268.9 discloses a current transformer for outdoor use, which specifically includes a supporting device, a lower cover device, an opening and closing device, a fixing device and a wiring device, wherein the supporting device includes a lower shell, the lower cover device includes an upper shell and a buffer layer, the opening and closing device includes a fastener, a fixing block and a hinge, the inner surface of the fastener is connected to the outer surface of the fixing block, the inner surface of the fastener is connected to the outer surface of the upper shell, the inner surface of the hinge is connected to the outer surface of the upper shell, the inner surface of the hinge is connected to the outer surface of the lower shell, the fixing device includes a connector, the inner surface of the connector is connected to the outer surface of the lower shell, the wiring device includes a terminal, the inner surface of the terminal is connected to the outer surface of the lower shell. The utility model presses the fastener downward to tighten the fixing block, the bolt can further lock the fastener and the fixing block, and the hinge is used to open and close the upper shell and the lower shell.

[0004] However, for the current traditional current transformer, in order to ensure the stability of the structure between the upper shell and the lower shell, bolts are usually used to fix the upper shell and the lower shell. However, when repairing the current transformer, this fixing method usually requires the staff to use tools to unscrew the bolts fixing the upper shell and the lower shell in sequence before opening the upper shell and the lower shell to repair the current transformer. The operation is cumbersome and inconvenient to use. Utility Model Content

[0005] In view of this, the present invention provides a current transformer for outdoor use, which has a limit vertical plate and a limit plug column that can facilitate the staff to quickly open the upper shell and the lower shell. By pulling the locking plug rod, the locking plug rod slides in the fixed frame and stretches the connecting spring. As the locking plug rod slides, it will disengage from the operating handle to release the lock of the operating handle. At this time, the staff can pull the operating handle to make the operating handle drive the connecting rod to move. During the movement of the connecting rod, the connecting rocker arm will be driven to swing. During the swinging of the connecting rocker arm, the limit plug column will be driven to move, so that the limit plug column will be disengaged from the limit vertical plate. At this time, the staff can open the upper shell and the lower shell, which is convenient for maintenance and inspection of the current transformer.

[0006] The utility model provides a current transformer for outdoor use, which specifically includes: a fixed base; the top surface of the fixed base is fixedly connected to a lower shell; the top surface of the lower shell is hingedly connected to an upper shell; a lower semicircular iron core is arranged in the lower shell; an upper semicircular iron core is arranged in the upper shell; the upper semicircular iron core and the lower semicircular iron core are aligned; a terminal is fixedly connected to the center of the front end surface of the lower shell; an equipment line is arranged in the terminal post; a wiring port is fixedly connected to the end of the equipment line; two limit vertical plates are symmetrically fixedly connected to the right part of the top surface of the lower shell; the two limit vertical plates are both plugged into the upper shell.

[0007] Optionally, the right part of the upper shell is slidably connected to a connecting rod; an operating handle is fixedly connected to the center of the right end face of the connecting rod; two connecting rocker rods are symmetrically hinged inside the connecting rod; the ends of the two connecting rocker rods are hinged to a limiting plug; the two limiting plugs are respectively inserted into the upper part of the two limiting vertical plates.

[0008] Optionally, the outside of the two limiting plug posts is fixedly connected with a guide slide; the right part of the upper shell is symmetrically fixedly connected with two fixed guide rails; the two guide slides are respectively slidably connected in the two fixed guide rails.

[0009] Optionally, the left end face of the connecting rod is fixedly connected to two fixed guide rods; the right part of the upper shell is fixedly connected to a mounting vertical plate; the two fixed guide rods are slidably connected in the mounting vertical plate; the right parts of the two fixed guide rods are fixedly connected to a return spring; the ends of the two return springs are fixedly connected to the outside of the mounting vertical plate.

[0010] Optionally, a locking rod is inserted into the operating handle; a fixing frame is fixedly connected to the right part of the upper shell; the locking rod is slidably connected in the fixing frame; two connecting springs are symmetrically fixedly connected to the upper part of the locking rod; the ends of the two connecting springs are fixedly connected to the top surface of the fixing frame.

[0011] Optionally, the rear end face of the upper shell is fixedly connected to an upper positioning seat in the center; the rear end face of the lower shell is fixedly connected to a lower positioning seat in the center; the lower positioning seat is aligned with the upper positioning seat; a control screw is connected to the inner thread of the lower positioning seat; the top end face of the control screw is rotatably connected to a positioning arc plate; the bottom end face of the positioning arc plate is symmetrically fixedly connected to two guide slide rods; both guide slide rods are slidably connected in the lower positioning seat.

[0012] Beneficial effects

[0013] During use, the utility model can lock the operating handle by setting the locking rod to prevent the operating handle from being accidentally touched, which may cause the fixation between the lower shell and the upper shell to be released and loosened. The operating handle can be unlocked by pulling the locking rod, which facilitates the staff to perform subsequent operations.

[0014] After releasing the lock of the operating handle, the staff drives the connecting rod to move by pulling the operating handle and drives the limit plug to move by connecting the rocker arm, so that the limit plug is disengaged from the limit vertical plate. At this time, the staff can open the upper shell and the lower shell to facilitate the maintenance and repair of the current transformer, and facilitate the staff to carry out necessary cleaning, inspection and replacement of parts, thereby significantly improving maintenance efficiency, effectively improving the convenience of the current transformer, and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] In the attached figure:

[0017] Figure 1 It is an axonometric structural diagram of the present utility model.

[0018] Figure 2 It is a schematic diagram of the axonometric structure of the main view of the present invention.

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure.

[0020] Figure 4 It is a schematic cross-sectional structural diagram of the present utility model.

[0021] Figure 5 It is a schematic diagram of the axonometric structure of the utility model when the upper shell is opened.

[0022] Figure 6 It is a schematic diagram of the axonometric structure of the connecting rod of the utility model.

[0023] Reference Signs List

[0024] 1. Fixed base; 101. Lower shell; 102. Upper shell; 103. Lower semicircular iron core; 104. Upper semicircular iron core; 105. Terminal; 106. Equipment line; 107. Wiring port; 108. Upper positioning seat; 109. Lower positioning seat; 110. Control screw; 111. Positioning arc plate; 112. Guide slide; 113. Limiting vertical plate; 114. Connecting rod; 115. Operating handle; 116. Connecting rocker; 117. Limiting plug column; 118. Guide slide; 119. Fixed guide rail; 120. Fixed guide rod; 121. Fixed frame; 122. Locking plug rod; 123. Connecting spring; 124. Reset spring; 125. Installing vertical plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the following will be combined with the drawings of specific embodiments of the present invention to clearly and completely describe the technical solution of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0026] Example 1:

[0027] This utility model proposes a current transformer for outdoor use, please refer to Figures 1 to 6 , including: a fixed base 1;

[0028] The top surface of the fixed base 1 is fixedly connected to a lower shell 101; the top surface of the lower shell 101 is hingedly connected to an upper shell 102; a lower semicircular iron core 103 is provided in the lower shell 101; an upper semicircular iron core 104 is provided in the upper shell 102; the upper semicircular iron core 104 is aligned with the lower semicircular iron core 103; a terminal post 105 is fixedly connected to the center of the front end surface of the lower shell 101; an equipment line 106 is provided in the terminal post 105; the end of the equipment line 106 is fixedly connected to a wiring port 107; two limiting vertical plates 113 are symmetrically fixedly connected to the right part of the top surface of the lower shell 101; the two limiting vertical plates 113 are both inserted into the upper shell 102.

[0029] A connecting rod 114 is slidably connected to the right part of the upper shell 102; an operating handle 115 is fixedly connected to the center of the right end face of the connecting rod 114; two connecting rocker arms 116 are symmetrically hinged inside the connecting rod 114; the ends of the two connecting rocker arms 116 are hinged to a limiting plug 117; the two limiting plugs 117 are respectively inserted into the upper parts of the two limiting vertical plates 113.

[0030] A guide slide 118 is fixedly connected to the outside of the two limiting plug posts 117 ; two fixed guide rails 119 are symmetrically fixedly connected to the right part of the upper shell 102 ; the two guide slides 118 are slidably connected to the two fixed guide rails 119 respectively.

[0031] Two fixed guide rods 120 are fixedly connected to the left end face of the connecting rod 114; a mounting vertical plate 125 is fixedly connected to the right part of the upper shell 102; the two fixed guide rods 120 are both slidably connected in the mounting vertical plate 125; the right parts of the two fixed guide rods 120 are both fixedly connected to a return spring 124; the ends of the two return springs 124 are fixedly connected to the outside of the mounting vertical plate 125.

[0032] A locking rod 122 is inserted into the operating handle 115; a fixing frame 121 is fixedly connected to the right part of the upper shell 102; the locking rod 122 is slidably connected in the fixing frame 121; two connecting springs 123 are symmetrically fixedly connected to the upper part of the locking rod 122; the ends of the two connecting springs 123 are fixedly connected to the top surface of the fixing frame 121.

[0033] The specific usage and function of this embodiment: When the current transformer needs to be opened for maintenance and inspection, the staff only needs to pull the operating handle 115 so that the operating handle 115 drives the connecting rod 114 to move. During the movement of the connecting rod 114, the connecting rocker 116 is driven to swing. During the swinging of the connecting rocker 116, the limiting plug 117 is driven to move so that the limiting plug 117 is separated from the limiting vertical plate 113. At this time, the staff can open the upper shell 102 and the lower shell 101 to facilitate the maintenance and inspection of the current transformer. The lower shell 101 is supported by the fixed base 1, and the wiring port 107 is used to facilitate the staff to connect the wires. During the movement of the limiting plug 117, the guide slide 118 is driven to slide along the fixed guide rail 119, and the sliding of the guide slide 118 is used to adjust the limiting plug 1 17 provides guidance. During the movement of the connecting rod 114, the fixed guide rod 120 will be driven to slide along the mounting vertical plate 125 to provide guidance for the connecting rod 114. During the sliding of the fixed guide rod 120, the reset spring 124 will be squeezed, and the elastic potential energy of the reset spring 124 itself will facilitate subsequent reset. The setting of the locking plug rod 122 can lock the operating handle 115 to prevent accidental touching of the operating handle 115 and causing looseness between the lower shell 101 and the upper shell 102. By pulling the locking plug rod 122, the locking plug rod 122 slides in the fixing frame 121 and stretches the connecting spring 123. As the locking plug rod 122 slides, it will detach from the operating handle 115 to release the lock of the operating handle 115. At this time, the staff can pull the operating handle 115 to release the fixation between the lower shell 101 and the upper shell 102.

[0034] Example 2:

[0035] Based on Example 1, please refer to Figures 1 to 2, including: an upper positioning seat 108, a lower positioning seat 109, a control screw 110, a positioning arc plate 111, and a guide slide 112. The rear end surface of the upper shell 102 is fixedly connected to an upper positioning seat 108 in the center; the rear end surface of the lower shell 101 is fixedly connected to a lower positioning seat 109 in the center; the position of the lower positioning seat 109 is aligned with the upper positioning seat 108; a control screw 110 is connected to the internal thread of the lower positioning seat 109; the top surface of the control screw 110 is rotatably connected to a positioning arc plate 111; the bottom end surface of the positioning arc plate 111 is symmetrically fixedly connected to two guide slides 112; the two guide slides 112 are both slidably connected in the lower positioning seat 109.

[0036] The specific usage and function of this embodiment are as follows: by rotating the control screw 110, the control screw 110 drives the positioning arc plate 111 to move. During the movement of the positioning arc plate 111, the guide slide 112 will be driven to slide in the lower positioning seat 109, providing guidance for the positioning arc plate 111. As the positioning arc plate 111 moves, the cable will be pressed against the upper positioning seat 108 to fix the cable.

[0037] In this article, there are several points to note:

[0038] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A current transformer for outdoor use, comprising: A fixed base (1); the top surface of the fixed base (1) is fixedly connected to a lower shell (101); the top surface of the lower shell (101) is hingedly connected to an upper shell (102); the lower shell (101) is provided with a lower semicircular iron core (103); the upper shell (102) is provided with an upper semicircular iron core (104); the upper semicircular iron core (104) and the lower semicircular iron core (103) are aligned; a terminal (105) is fixedly connected to the center of the front end surface of the lower shell (101); a device line (106) is provided in the terminal line (105); the end of the device line (106) is fixedly connected to a wiring port (107); two limiting vertical plates (113) are symmetrically fixedly connected to the right part of the top surface of the lower shell (101); the two limiting vertical plates (113) are both plugged into the upper shell (102).

2. A current transformer for outdoor use according to claim 1, characterized in that: The right part of the upper shell (102) is slidably connected to a connecting rod (114); an operating handle (115) is fixedly connected to the center of the right end surface of the connecting rod (114); two connecting rocker rods (116) are symmetrically hinged inside the connecting rod (114); the ends of the two connecting rocker rods (116) are hingedly connected to a limiting plug column (117); the two limiting plug columns (117) are respectively inserted into the upper parts of the two limiting vertical plates (113).

3. A current transformer for outdoor use according to claim 2, characterized in that: The exteriors of the two limiting plug posts (117) are fixedly connected to a guide slide (118); the right portion of the upper shell (102) is symmetrically fixedly connected to two fixed guide rails (119); and the two guide slides (118) are respectively slidably connected to the two fixed guide rails (119).

4. A current transformer for outdoor use according to claim 2, characterized in that: The left end surface of the connecting rod (114) is fixedly connected to two fixed guide rods (120); the right part of the upper shell (102) is fixedly connected to a mounting vertical plate (125); the two fixed guide rods (120) are both slidably connected in the mounting vertical plate (125); the right parts of the two fixed guide rods (120) are both fixedly connected to a return spring (124); the ends of the two return springs (124) are fixedly connected to the outside of the mounting vertical plate (125).

5. A current transformer for outdoor use according to claim 4, characterized in that: A locking rod (122) is inserted into the operating handle (115); a fixing frame (121) is fixedly connected to the right side of the upper shell (102); the locking rod (122) is slidably connected to the fixing frame (121); two connecting springs (123) are symmetrically fixedly connected to the upper part of the locking rod (122); the ends of the two connecting springs (123) are fixedly connected to the top surface of the fixing frame (121).

6. A current transformer for outdoor use according to claim 1, characterized in that: An upper positioning seat (108) is fixedly connected to the center of the rear end face of the upper shell (102); a lower positioning seat (109) is fixedly connected to the center of the rear end face of the lower shell (101); the lower positioning seat (109) is aligned with the upper positioning seat (108); a control screw (110) is connected to the inner thread of the lower positioning seat (109); a positioning arc plate (111) is rotatably connected to the top end face of the control screw (110); two guide slide rods (112) are symmetrically fixedly connected to the bottom end face of the positioning arc plate (111); the two guide slide rods (112) are both slidably connected to the lower positioning seat (109).

Images