Current transformer convenient to install

Abstract

The utility model discloses a current transformer convenient to install, the current transformer convenient to install comprises a body, the two sides and the two ends of the outer wall of the body are provided with installation holes, the installation holes are provided with fixing devices, each fixing device comprises a fixing rod, a fastener and a fixing sleeve, the fastener is sleeved on the outer wall of the fixing rod, and the fixing sleeve is sleeved on the outer wall of the fixing rod. The fixing sleeve is arranged on the fixing rod and detachably connected and fixed to the fixing rod, the fixing sleeve is in threaded connection with the fastener, and a plurality of lifting ejector blocks are evenly distributed on the fixing sleeve with the circle point as the axis. The fastening piece is arranged on the fixing column in a sleeved mode, the fastening piece is connected and fixed with the fixing column only by rotating the fastening piece, force clamping the end face of the installation hole is formed between the ejector block and the fixing rod through the spring, and therefore the body is fixed to a fixed object, the installation speed is increased through the design, and installation can be completed without other tools. The product has the advantages of being convenient to operate, improving the installation efficiency and adjusting the clamping force.

Description

Technical Field

[0001] The utility model relates to the technical field of mutual inductors, in particular to a current mutual inductor which is easy to install. Background Art

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current for measurement based on the principle of electromagnetic induction. The current transformer consists of a closed iron core and a winding. Its primary winding has very few turns and is connected in series in the circuit of the current to be measured.

[0003] Currently, current transformers are fixed to the objects being fixed by bolts. This installation method is not only cumbersome but also time-consuming. In some installation locations with narrow angles, tools cannot smoothly tighten the bolts, making the operation more difficult. Therefore, the applicant has made a useful design and found a solution to the above-mentioned problem. The technical solution to be introduced below was developed in this context. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned traditional current transformer design and provide a product that is easy to operate, improves installation efficiency, and adjusts clamping force.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions.

[0006] A current transformer that is easy to install includes a body, and mounting holes are provided on both sides and both ends of the outer wall of the body. The mounting holes are provided with fixing devices, and the fixing devices include a fixing rod, a fastener, and a fixing sleeve. The fastener is sleeved on the outer wall of the fixing rod and is detachably connected to the fixing rod and fixed. The fixing sleeve is threadedly connected to the fastener. The fixing sleeve is evenly distributed with a plurality of liftable top blocks with a circle as the axis. The fixing sleeve is provided with a spring and applies downward pressure to the top block so that the top block abuts the end face of the mounting hole.

[0007] Preferably, a first operating portion is provided at one end of the fastener, a blocking portion is provided on an outer wall of the fastener, first fixing grooves are provided on both sides of the other end of the fastener, and a second fixing groove is provided on one side wall of the first fixing groove.

[0008] Preferably, fixing parts are provided on both sides of the end of the fixing rod, an interference part is provided on the end surface of the fixing rod, and a second operating part is provided on the outer wall of the fixing rod and is located below the fixing part.

[0009] Preferably, the fixing portion is inserted into the first fixing groove, and the fastener is rotated to make the fixing portion enter the second fixing groove, so that the fastener is connected and fixed to the fixing rod, and the detachable setting is the fixing portion.

[0010] Preferably, the top block is provided with a rod portion, an end surface of the rod portion is provided with a gasket, and a gap is provided between the top blocks for the second operating portion to pass through.

[0011] Preferably, the outer wall of the fixing sleeve is provided with knurling, and the fixing sleeve is provided with a through hole for the rod to pass through.

[0012] Preferably, the spring is arranged on the outer wall of the rod.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) In the present invention, the fixing rod is passed through the mounting hole, and the second operating part provides support for the fixing column. The fastener is sleeved on the fixing column, and the fastener is rotated to connect and fix it with the fixing column. The top block abuts the end face of the mounting hole, and the spring forms a force between the top block and the fixing rod to clamp the end face of the mounting hole, thereby fixing the main body to the fixed object. The above design speeds up the installation speed, and the installation can be completed without borrowing other tools. It is suitable for installing the main body in a narrow space, so that the product has the advantages of easy operation and improved installation efficiency.

[0016] (2) The utility model adjusts the distance between the fixed sleeve and the stop portion by rotating the fixed sleeve, and adjusts the distance between the fixed sleeve and the end face of the mounting hole, thereby compressing the spring to achieve the effect of adjusting the clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a current transformer that is easy to install according to the utility model;

[0018] Figure 2 This is a schematic diagram of the side cross-sectional structure of a current transformer that is easy to install according to the utility model;

[0019] Figure 3 For this utility model Figure 2 A partial enlarged view of a current transformer that is easy to install;

[0020] Figure 4 This is an exploded view of a fixing device for a current transformer that is easy to install according to the utility model;

[0021] Figure 5 This is a cross-sectional view of a fixture for a current transformer that is easy to install according to the present invention;

[0022] Figure 6 This is a schematic structural diagram of a fastener for a current transformer that is easy to install according to the utility model;

[0023] The corresponding relationship between the labels and component names in the figures is as follows:

[0024] Figure numerals: 1. Main body; 2. Fixing device; 3. Fixing rod; 4. Fastener; 5. Fixing sleeve; 6. Top block; 7. Spring; 8. Mounting frame; 11. Mounting hole; 31. Fixing part; 32. Interference part; 33. Second operating part; 41. First operating part; 42. Stop part; 43. First fixing groove; 44. Second fixing groove; 51. Knurling; 52. Through hole; 61. Rod; 62. Gasket. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0028] Reference example Figures 1 to 6 A current transformer that is easy to install includes a body 1. Both sides and both ends of the outer wall of the body 1 are provided with mounting holes 11. The mounting hole 11 is provided with a fixing device 2. The fixing device 2 includes a fixing rod 3, a fastener 4, and a fixing sleeve 5. The fastener 4 is sleeved on the outer wall of the fixing rod 3 and is detachably connected to the fixing rod 3. The fixing sleeve 5 is threadedly connected to the fastener 4. The fixing sleeve 5 is evenly distributed with a plurality of liftable top blocks 6 with a circular point as the axis. The fixing sleeve 5 is provided with a spring 7 and applies downward pressure to the top block 6, so that the top block 6 abuts the end surface of the mounting hole 11.

[0029] It is worth mentioning that a first operating portion 41 is provided at one end of the fastener 4, a stop portion 42 is provided on the outer wall of the fastener 4, and a first fixing groove 43 is provided on both sides of the other end of the fastener 4. A second fixing groove 44 is provided on one side wall of the first fixing groove 43. The first operating portion 41 facilitates the user to rotate the fastener 4, and the stop portion 42 limits the range of motion of the fixed sleeve 5, thereby limiting the adjustment of the clamping force. The first fixing groove 43 and the second fixing groove 44 are L-shaped.

[0030] It is worth mentioning that the fixing rod 3 has fixing parts 31 on both sides of the end thereof, and an abutment part 32 on the end surface thereof. The outer wall of the fixing rod 3 is provided with a second operating part 33 located below the fixing part 31. The abutment part 32 increases the contact area with the object to be fixed, and the second operating part 33 provides support for the fixing rod 3.

[0031] It is worth mentioning that the fixing portion 31 is inserted into the first fixing groove 43, and the fastener 4 is rotated to make the fixing portion 31 enter the second fixing groove 44, so that the fastener 4 is connected and fixed to the fixing rod 3. The fixing portion 31 is detachably provided, and the installation efficiency is improved by being detachable;

[0032] It is worth mentioning that the top block 6 is provided with a rod portion 61, and a gasket 62 is provided on the end surface of the rod portion 61. A gap is provided between the top blocks 6 for the second operating portion 33 to pass through, and the gasket 62 limits the distance that the top block 6 can descend;

[0033] It is worth mentioning that the outer wall of the fixed sleeve 5 is provided with a knurling 51, and the fixed sleeve 5 is provided with a through hole 52 for the rod portion 61 to pass through. The knurling 51 increases the friction force when the user rotates the fixed sleeve 5. By rotating the fixed sleeve 5, the distance between the fixed sleeve 5 and the stop portion 42 is adjusted, and the distance between the fixed sleeve 5 and the end surface of the mounting hole 11 is adjusted, thereby compressing the spring 7 to achieve the effect of adjusting the clamping force;

[0034] It is worth mentioning that the spring 7 is arranged on the outer wall of the rod 61, and the rod 61 prevents the spring 7 from being separated.

[0035] The operating principle of the present invention is now described as follows:

[0036] Pass the fixing rod 3 through the mounting bracket 8 and the mounting hole 11, and insert the fastener 4 onto the fixing rod 3. The fixing portion 31 enters the first fixing groove 43 and abuts against the end surface of the first fixing groove 43. The second operating portion 33 provides support for the fixing column. The fastener 4 is rotated by the first operating portion 41, so that the fixing portion 31 enters the second fixing groove 44.

[0037] The top block 6 abuts against the end surface of the mounting hole 11, and the spring 7 applies a downward force to the top block 6, so that a force is formed between the top block 6 and the abutting portion 32 to clamp the end surface of the mounting hole 11 and the mounting frame 8, thereby fixing the body 1 on the mounting frame 8.

[0038] The above design solution can make the product easy to operate, improve installation efficiency and adjust clamping force.

[0039] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A current transformer that is easy to install, comprising a body (1), wherein both sides and both ends of the outer wall of the body (1) are provided with mounting holes (11), and the mounting holes (11) are provided with fixing devices (2), characterized in that: The fixing device (2) comprises a fixing rod (3), a fastener (4), and a fixing sleeve (5); the fastener (4) is sleeved on the outer wall of the fixing rod (3) and is detachably connected to the fixing rod (3); the fixing sleeve (5) is threadedly connected to the fastener (4); the fixing sleeve (5) is evenly distributed with a plurality of liftable top blocks (6) with a circular point as the axis; the fixing sleeve (5) is provided with a spring (7) and applies downward pressure to the top block (6) so that the top block (6) abuts against the end face of the mounting hole (11).

2. The current transformer that is easy to install according to claim 1, characterized in that: One end of the fastener (4) is provided with a first operating portion (41), an outer wall of the fastener (4) is provided with a blocking portion (42), and both sides of the other end of the fastener (4) are provided with first fixing grooves (43), and a side wall of the first fixing groove (43) is provided with a second fixing groove (44).

3. The current transformer that is easy to install according to claim 2, characterized in that: The fixing rod (3) has fixing parts (31) on both sides of its end, and an abutment part (32) on its end surface. The outer wall of the fixing rod (3) has a second operating part (33) located below the fixing part (31).

4. The current transformer that is easy to install according to claim 3, characterized in that: The fixing portion (31) is inserted into the first fixing groove (43), and the fastener (4) is rotated to allow the fixing portion (31) to enter the second fixing groove (44), so that the fastener (4) is connected and fixed to the fixing rod (3), and the detachable setting is the fixing portion (31).

5. The current transformer easy to install according to claim 3, characterized in that: The top block (6) is provided with a rod portion (61), the end surface of the rod portion (61) is provided with a gasket (62), and a spacing for the second operating portion (33) to pass through is provided between the top blocks (6).

6. The current transformer easy to install according to claim 5, characterized in that: The outer wall of the fixed sleeve (5) is provided with knurling (51), and the fixed sleeve (5) is provided with a through hole (52) for the rod portion (61) to pass through.

7. The current transformer easy to install according to claim 6, characterized in that: The spring (7) is arranged on the outer wall of the rod (61).

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