CN220289709U - Mutual inductor for ammeter - Google Patents

Abstract

The utility model discloses a mutual inductor for an ammeter, which comprises a movable part and a fixed part, wherein the movable part is hinged on the fixed part and can form an annular structure with the fixed part, a fixed seat is arranged on the fixed part, a clamping seat is arranged on the movable part, a clamping groove is formed in the side surface of the fixed seat, a clamping hole is formed in the side surface of the clamping groove, a clamping block which can be inserted into the clamping groove is arranged on the side surface of the clamping seat, a sliding groove is formed in the side surface of the clamping block, and a clamping rod which can be inserted into the clamping hole is arranged in the sliding groove.

Description

Mutual inductor for ammeter

Technical Field

The utility model relates to the field of electric components, in particular to a transformer for an ammeter.

Background

The transformer generally refers to a transformer for instruments and has two main purposes: the transformer is widely applied in daily life, is sleeved on a cable of an ammeter, and is one of common connection modes between the transformer and the ammeter.

The utility model discloses a mutual inductor, which comprises a fixed main body and a movable main body, wherein the fixed main body of the mutual inductor is in an arc-shaped structural design, the movable main body of the mutual inductor is hinged on the fixed main body of the mutual inductor and can form an annular structure with the fixed main body of the mutual inductor, the fixed main body of the mutual inductor is positioned at the inner side of the arc shape of the fixed main body of the mutual inductor and is provided with a bottom, the movable main body of the mutual inductor is provided with a poking rod which can be propped against the bottom of the mutual inductor, the fixed main body of the mutual inductor is also hinged with a push rod, and a reset spring is arranged on the push rod of the mutual inductor and can be propped against the poking rod of the mutual inductor.

To above-mentioned correlation technique, be provided with the poking rod in the mutual-inductor movable body, it has the ejector pin to articulate on the mutual-inductor fixed body, be provided with reset spring on the mutual-inductor ejector pin, mutual-inductor ejector pin and mutual-inductor poking rod looks butt, when dismantling when needs, pull down fixed body with force, the cable jack-up the ejector pin, the cable withstands the poking rod, poking rod drives movable body and opens, in the use, when fixed body receives external force influence, poking rod drives movable body easily and opens, stability when reducing the mutual-inductor and using.

Disclosure of Invention

In order to improve the stability that mutual-inductor and ammeter cable are connected, this application provides a mutual-inductor for ammeter.

The mutual inductor for the ammeter adopts the following technical scheme:

the utility model provides a mutual-inductor for ammeter, includes movable part and fixed part, movable part articulated in on the fixed part and can with the fixed part forms annular structure, be provided with the fixing base on the fixed part, be provided with the joint seat on the movable part, the joint groove has been seted up on the side of fixing base, the joint hole has been seted up on the side of joint groove, be provided with on the side of joint seat and insert locate the joint piece in the joint groove, the slip groove has been seted up on the side of joint piece, the slip is provided with in the groove and inserts and locate the draw-in lever in the joint hole.

Through adopting above-mentioned technical scheme, movable part is articulated mutually with the fixed part, and movable part can form annular structure with the fixed part, when needs with movable part and fixed part looks joint, with the joint piece insert locate the joint inslot, with the draw-in lever insert locate the joint downthehole, can realize with movable part and fixed part looks joint, strengthen the stability of movable part and fixed part joint.

Preferably, a mounting box is arranged on the side face of the movable part, a transformer is arranged in the mounting box, and a fastening component for fastening the transformer is arranged in the mounting box.

Through adopting above-mentioned technical scheme, the mutual-inductor sets up in the installation incasement, is provided with fastening assembly in the installation case, and fastening assembly prevents that the mutual-inductor from rocking in the installation case, reinforcing mutual-inductor and the stability of installation case joint.

Preferably, the sliding groove is formed in the bottom surface of the mounting box, the fastening assembly comprises a first spring, a sliding block arranged in the sliding groove and a fastening block arranged on the sliding block, the first spring is arranged in the sliding groove, one end of the first spring is abutted to the side wall of the movable portion, which is close to the sliding groove, the other end of the first spring is abutted to the side surface of the movable portion, which is close to the sliding block, and the side surface of the first spring, which is far away from the fastening block, is abutted to the side surface of the transformer.

Through adopting above-mentioned technical scheme, the fastening piece sets up on the slider, and the one end of spring one is inconsistent with the lateral wall that the sliding tray is close to movable part, and the other end of spring one is inconsistent with the side that the slider is close to movable part, and the side that the spring one was kept away from to the fastening piece is laminated mutually with the side of mutual-inductor, and the slider is driven to the slider and is close to the mutual-inductor to the thrust that the slider was given all the time to the spring one, improves the laminating power between fastening piece and the mutual-inductor.

Preferably, a blocking groove is formed in the side wall of the sliding groove, a stop block is arranged on the side face of the sliding block, and the stop block is slidably arranged in the blocking groove.

Through adopting above-mentioned technical scheme, the dog slides and sets up in keeping off the inslot, and the dog obstructs the slider and breaks away from the sliding tray, reinforcing slider and the stability of installing box joint.

Preferably, the mounting box is close to the side of the movable part and is provided with a through hole, the side of the movable part is provided with a connecting hole, the through hole is communicated with the connecting hole, the transformer is provided with a connecting wire, and the connecting wire is slidably arranged in the through hole and the connecting hole.

Through adopting above-mentioned technical scheme, the connecting hole is linked together with the through-hole, is provided with the connecting wire on the transformer, and the connecting wire slides and sets up in through-hole and connecting hole, is convenient for be connected with other parts with the transformer.

Preferably, a protective sleeve is arranged outside the transformer, a through hole is formed in the protective sleeve, the connecting wire penetrates through the through hole, a protective tube is arranged on the protective sleeve, the protective tube is communicated with the protective sleeve, and the connecting wire is arranged in the protective tube.

Through adopting above-mentioned technical scheme, the lag sets up outside the mutual-inductor, is provided with the protective tube on the lag, and the protective tube is linked together with the lag, and the connecting wire sets up in the protective tube, and the lag protects the mutual-inductor.

Preferably, a second spring is arranged in the sliding groove, one end of the second spring is abutted against the side wall of the sliding groove, which is far away from the clamping hole, and the other end of the second spring is abutted against the side surface of the clamping rod, which is far away from the clamping hole.

Through adopting above-mentioned technical scheme, the one end of spring two is inconsistent with the lateral wall that the joint hole was kept away from to the groove that slides, and the other end of spring two is inconsistent with the side that the joint hole was kept away from to the draw-in lever, and spring two gives the thrust that the draw-in lever is close to the joint hole all the time, strengthens the stability of draw-in lever and fixing base joint to strengthen the stability of joint seat and fixing base joint.

Preferably, the side wall of the sliding groove is provided with a limiting groove, the clamping rod is provided with a limiting block, and the limiting block is slidably arranged in the limiting groove.

Through adopting above-mentioned technical scheme, the stopper slides and sets up in the spacing inslot, and the stopper obstructs the card pole and breaks away from the groove of sliding, reinforcing card pole and the stability of joint seat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the movable part is hinged with the fixed part, the movable part and the fixed part can form an annular structure, when the movable part and the fixed part are required to be clamped, the clamping block is inserted into the clamping groove, the clamping rod is inserted into the clamping hole, the movable part and the fixed part can be clamped, and the clamping stability of the movable part and the fixed part is enhanced;

2. the fastening block is arranged on the sliding block, one end of the first spring is abutted against the side wall of the sliding groove, which is close to the movable part, the other end of the first spring is abutted against the side surface of the sliding block, which is close to the movable part, the side surface of the fastening block, which is far away from the first spring, is abutted against the side surface of the transformer, the first spring always gives the sliding block thrust to the transformer, and the sliding block drives the fastening block to approach the transformer, so that the abutting force between the fastening block and the transformer is improved;

3. the protective sleeve is arranged outside the transformer, a protective tube is arranged on the protective sleeve and is communicated with the protective sleeve, the connecting wire is arranged in the protective tube, and the protective sleeve protects the transformer.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a transformer for an electric meter according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of the clamping seat and the fixing seat in the embodiment of the application.

Fig. 3 is a cross-sectional view of the movable portion and the mounting case in the embodiment of the present application.

Fig. 4 is a cross-sectional view of a case in an embodiment of the present application.

FIG. 5 is a cross-sectional view of a protective sheath in an embodiment of the present application.

Reference numerals illustrate:

1. a movable part; 11. a clamping seat; 111. a clamping block; 1111. a slip groove; 1112. a limit groove; 112. a clamping rod; 1121. a limiting block; 113. a second spring; 12. a mounting box; 121. a top cover; 122. a case; 1221. a sliding groove; 1222. a blocking groove; 1223. a through hole; 123. a transformer; 1231. a connecting wire; 1232. a protective sleeve; 1233. perforating; 1234. a protective tube; 124. a fastening assembly; 1241. a first spring; 1242. a slide block; 1243. a fastening block; 1244. a stop block; 13. a connection hole; 2. a fixing part; 21. a fixing seat; 211. a clamping groove; 2111. and a clamping hole.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses mutual inductor for ammeter, refer to the fig. 1 and show, mutual inductor for ammeter includes movable part 1 and fixed part 2, and the one end of movable part 1 articulates mutually with the one end of fixed part 2, and welded fastening has clamping seat 11 on the side of the other end of movable part 1, and welded fastening has fixing base 21 on the side of the other end of fixed part 2, and clamping seat 11 is close to each other with fixing base 21.

Referring to fig. 1 and 2, a clamping groove 211 is formed on a side surface of the fixing base 21, which is close to the clamping base 11, a clamping hole 2111 is formed on a side wall of the clamping groove 211, a clamping block 111 is welded and fixed on a side surface of the clamping base 11, which is close to the fixing base 21, a sliding groove 1111 is formed on a side surface of the clamping block 111, and a clamping rod 112 is arranged in the sliding groove 1111.

Referring to fig. 2, the clamping rod 112 is slidably disposed in the sliding groove 1111, the clamping rod 112 is horizontally disposed in the sliding groove 1111, a second spring 113 is disposed in the sliding groove 1111, one end of the second spring 113 abuts against a side wall of the sliding groove 1111 away from the clamping hole 2111, and the other end of the second spring 113 abuts against a side surface of the clamping rod 112 away from the clamping hole 2111.

Referring to fig. 1, a limiting groove 1112 is formed on a side wall of the sliding groove 1111, a limiting block 1121 is welded and fixed on a side surface of the clamping rod 112, the limiting block 1121 is slidably arranged in the limiting groove 1112, the limiting block 1121 prevents the clamping rod 112 from separating from the sliding groove 1111, and the clamping stability of the clamping rod 112 and the clamping seat 11 is enhanced.

Referring to fig. 1 and 2, when the movable portion 1 and the fixed portion 2 need to be clamped, the clamping rod 112 slides in the direction of compressing the second spring 113, so that the side surface of the clamping rod 112 away from the second spring 113 is flush with the side surface of the clamping block 111, the clamping block 111 is inserted into the clamping groove 211, the clamping block 111 is pushed towards the direction close to the clamping hole 2111 continuously, and when the sliding groove 1111 is overlapped with the clamping hole 2111, under the action of the elastic force of the second spring 113, the second spring 113 pushes the clamping rod 112, so that the clamping rod 112 is inserted into the clamping hole 2111, the movable portion 1 and the fixed portion 2 can be clamped, and the stability of the clamping of the movable portion 1 and the fixed portion 2 can be enhanced.

Referring to fig. 3, an installation box 12 is welded and fixed to the outer side surface of the movable portion 1, the installation box 12 includes a top cover 121 and a box body 122, the top cover 121 is fixed to the top surface of the box body 122 by bolts, the side surface of the box body 122, which is close to the movable portion 1, is a curved surface, and the side surface of the box body 122, which is close to the movable portion 1, is attached to the side surface of the movable portion 1.

Referring to fig. 3 and 4, a transformer 123 and fastening components 124 are disposed in the box 122, sliding grooves 1221 are formed in the bottom wall of the interior of the box 122, two sliding grooves 1221 are symmetrical with respect to the axis of the transformer 123, two fastening components 124 are disposed in two groups, two groups of fastening components 124 are in one-to-one correspondence with the two sliding grooves 1221, and two groups of fastening components 124 are disposed in the two sliding grooves 1221 respectively.

Referring to fig. 3 and 4, the fastening assembly 124 includes a first spring 1241, a sliding block 1242 and a fastening block 1243, the sliding block 1242 is slidably disposed in the sliding groove 1221, the sliding block 1242 is horizontally disposed in the sliding groove 1221, the first spring 1241 is disposed in the sliding groove 1221, one end of the first spring 1241 abuts against a side wall of the sliding groove 1221 adjacent to the movable portion 1, and the other end of the first spring 1241 abuts against a side surface of the sliding block 1242 adjacent to the movable portion 1.

Referring to fig. 4, a fastening block 1243 is welded and fixed on the top surface of the slider 1242, the fastening block 1243 and the side surface of the slider 1242, which is close to the transformer 123, are both provided with cambered surfaces, and the side surface of the fastening block 1243, which is close to the transformer 123, is attached to the side surface of the transformer 123.

Referring to fig. 4, a blocking groove 1222 is formed on a side wall of the sliding groove 1221, a block 1244 is fixed on a side surface of the sliding block 1242, the block 1244 is slidably disposed in the blocking groove 1222, and the block 1244 blocks the sliding block 1242 from separating from the sliding groove 1221, so as to enhance the stability of the clamping connection between the sliding block 1242 and the box 122.

Referring to fig. 3, through holes 1223 are formed in the side surface of the case 122, which is close to the movable portion 1, and two through holes 1223 are formed, wherein the sizes of the two through holes 1223 are the same, the axial lines of the two through holes 1223 are perpendicular to the axial line of the transformer 123, and the axial lines of the two through holes 1223 are in the same horizontal plane.

Referring to fig. 1 and 3, the movable portion 1 is provided with two connecting holes 13 on a side surface thereof, the two connecting holes 13 are in one-to-one correspondence with the two through holes 1223, the axes of the two connecting holes 13 are respectively coincident with the axes of the two through holes 1223, and the two communicating holes 1223 are respectively communicated with the two connecting holes 13.

Referring to fig. 1 and 3, connecting wires 1231 are disposed on the side of the transformer 123, two connecting wires 1231 are disposed on the side of the transformer 123, the two connecting wires 1231 are in one-to-one correspondence with the two through holes 1223, the two connecting wires 1231 respectively pass through the two through holes 1223, the two connecting wires 1231 are in one-to-one correspondence with the two connecting holes 13, the two connecting wires 1231 are respectively slidably disposed in the two connecting holes 13, the two connecting wires 1231 are composed of wires with different numbers, the wires in one connecting wire 1231 can be connected with a power wire, and the wires in the other connecting wire 1231 can be connected with the connection part of the ammeter cable.

Referring to fig. 3 and 5, a protecting sleeve 1232 is arranged outside the transformer 123, two through holes 1233 are formed in the protecting sleeve 1232, the two through holes 1233 are in one-to-one correspondence with two connecting wires 1231, the two connecting wires 1231 respectively penetrate through the two through holes 1233, protecting pipes 1234 are arranged on the protecting sleeve 1232, the two protecting pipes 1234 are communicated with the protecting sleeve 1232, the two protecting pipes 1234 are in one-to-one correspondence with the two connecting wires 1231, the two connecting wires 1231 are respectively arranged in the two protecting pipes 1234, and the inner side walls of the protecting pipes 1234 are attached to the outer side walls of the connecting wires 1231.

The implementation principle of the transformer for the ammeter provided by the embodiment of the application is as follows:

when the movable part 1 and the fixed part 2 need to be clamped, the clamping rod 112 slides towards the direction of the compression spring II 113, so that the side surface of the clamping rod 112 away from the spring II 113 is flush with the side surface of the clamping block 111, the clamping block 111 is inserted into the clamping groove 211, the clamping block 111 is pushed towards the direction close to the clamping hole 2111 continuously, when the sliding groove 1111 is overlapped with the clamping hole 2111, under the action of the elasticity of the spring II 113, the spring II 113 pushes the clamping rod 112, the clamping rod 112 is inserted into the clamping hole 2111, the movable part 1 and the fixed part 2 can be clamped, and the clamping stability of the movable part 1 and the fixed part 2 can be enhanced.

When the movable portion 1 and the fixed portion 2 need to be released from the locked state, the locking rod 112 is slid in the direction of compressing the second spring 113, so that the side surface of the locking rod 112 away from the second spring 113 is flush with the side surface of the locking block 111, the locking block 111 is slid in the direction away from the locking groove 211, so that the locking block 111 is separated from the locking groove 211, and the locking of the movable portion 1 and the fixed portion 2 can be released.

When the transformer 123 needs to be fixed inside the box 122, after the bolts on the top cover 121 are loosened, the clamping connection between the top cover 121 and the box 122 is released, the fastening block 1243 slides towards the first compression spring 1241, the transformer 123 is placed between the two oppositely arranged fastening blocks 1243, the fastening blocks 1243 are released, the side surfaces of the fastening blocks 1243 are attached to the side surfaces of the transformer 123, and the transformer 123 is fixed inside the box 122.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. Mutual inductor for ammeter, including movable part (1) and fixed part (2), movable part (1) articulated in on fixed part (2) and can with fixed part (2) form annular structure, its characterized in that: the fixing part (2) is provided with a fixing seat (21), the movable part (1) is provided with a clamping seat (11), the side surface of the fixing seat (21) is provided with a clamping groove (211), the side surface of the clamping groove (211) is provided with a clamping hole (2111), the side surface of the clamping seat (11) is provided with a clamping block (111) which can be inserted into the clamping groove (211), the side surface of the clamping block (111) is provided with a sliding groove (1111), and the sliding groove (1111) is internally provided with a clamping rod (112) which can be inserted into the clamping hole (2111).

2. The instrument transformer for electric meters according to claim 1, wherein: the movable part (1) is provided with a mounting box (12) on the side, a mutual inductor (123) is arranged in the mounting box (12), and a fastening component (124) for fastening the mutual inductor (123) is arranged in the mounting box (12).

3. The transformer for electric meters according to claim 2, wherein: the utility model discloses a transformer, including installation case (12), install bin (12) and install bin, set up sliding tray (1221) on the bottom surface of installation case (12), fastening assembly (124) include spring one (1241), slide set up in slider (1242) in sliding tray (1221) with set up in fastening piece (1243) on slider (1242), spring one (1241) set up in sliding tray (1221), one end of spring one (1241) with sliding tray (1221) is close to the lateral wall of movable part (1) is inconsistent, the other end of spring one (1241) with slider (1242) is close to the side of movable part (1) is inconsistent, the side that fastening piece (1243) was kept away from spring one (1241) with the side of transformer (123) is laminated mutually.

4. A transformer for electric meters according to claim 3, characterized in that: a retaining groove (1222) is formed in the side wall of the sliding groove (1221), a stop block (1244) is arranged on the side face of the sliding block (1242), and the stop block (1244) is arranged in the retaining groove (1222) in a sliding mode.

5. The transformer for electric meters according to claim 2, wherein: the installation box (12) is close to a through hole (1223) is formed in the side face of the movable portion (1), a connecting hole (13) is formed in the side face of the movable portion (1), the through hole (1223) is communicated with the connecting hole (13), a connecting wire (1231) is arranged on the transformer (123), and the connecting wire (1231) is slidably arranged in the through hole (1223) and the connecting hole (13).

6. The instrument transformer for electricity meter according to claim 5, wherein: the transformer (123) is provided with lag (1232) outward, perforated (1233) have been seted up on lag (1232), connecting wire (1231) pass perforated (1233), be provided with protective tube (1234) on lag (1232), protective tube (1234) with lag (1232) are linked together, connecting wire (1231) set up in protective tube (1234).

7. The instrument transformer for electric meters according to claim 1, wherein: the sliding groove (1111) is internally provided with a second spring (113), one end of the second spring (113) is abutted against the side wall of the sliding groove (1111) away from the clamping hole (2111), and the other end of the second spring (113) is abutted against the side surface of the clamping rod (112) away from the clamping hole (2111).

8. The instrument transformer for electricity meter according to claim 7, wherein: limiting grooves (1112) are formed in the side walls of the sliding grooves (1111), limiting blocks (1121) are arranged on the clamping rods (112), and the limiting blocks (1121) are arranged in the limiting grooves (1112) in a sliding mode.