Current transformer shell

Abstract

The utility model discloses a current transformer shell, and relates to the technical field of measuring instruments. The device comprises a placement table, an outer shell is connected to the placement table, an orientation adjusting assembly arranged on the peripheral side of the placement table comprises a placement box, a through groove is formed in the placement box, a bearing in interference fit with the middle of the placement box is rotationally connected with the peripheral side of the placement table, and a circular gear arranged in the placement box is connected to the peripheral side wall of the placement table in a sleeved mode. The side wall of the circular gear is in meshed connection with a toothed plate; a lifting assembly is arranged on the lower surface of the placement table. According to the current transformer, the orientation adjusting assembly is arranged, the limitation of the rotation angle of the outer shell is effectively relieved, the range of rotation adjustment of the outer shell is further increased, the current transformer shell can be conveniently adjusted to any direction, the lifting assembly is arranged, the lantern ring is inserted into the through hole through stretching and retracting of the reset spring, and therefore the current transformer shell can be conveniently adjusted. And the position of the movable shaft is limited, so that the stability of the current transformer shell after height adjustment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring instruments, in particular to a current transformer housing. 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. A current transformer consists of a closed iron core, a winding, and a housing.

[0003] After searching, a current transformer housing is disclosed in the patent document with patent announcement number CN219936839U, which relates to the technical field of current transformers, and solves the problem that the current transformer housing needs to be removed from the wall or the electric box and then turned over to realize the conversion of the P1 and P2 surfaces, including a mounting plate, an adjustment column is arranged at the center of the top of the mounting plate; the current transformer housing is arranged on the top of the adjustment column; a positioning plate is arranged on the circumferential outer wall of the adjustment column; positioning grooves are arranged in a circular shape on the circumferential outer wall of the positioning plate; an adjustment screw is arranged at the center of the inside of the adjustment column; a main bevel gear is arranged on the top of the adjustment screw; and a connecting rod is arranged at the bottom of the current transformer housing. It is convenient to convert and adjust the P1 and P2 surfaces of the current transformer housing, and it is convenient to redirect the line or carry out other work, and it will not spend too much time on the conversion work of the P1 and P2 surfaces.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The existing current transformer housing limits the rotation of the positioning plate by clamping the positioning piece with the positioning groove on the positioning plate, thereby limiting the direction of the current transformer housing. However, the positioning grooves are arranged in a circular array on the peripheral side wall of the positioning plate, so that the space between two adjacent positioning grooves is a solid structure, so that the positioning piece cannot be clamped between two adjacent positioning grooves, thereby limiting the rotation angle of the current transformer housing, thereby limiting the adjustment of the angle of the current transformer housing, and reducing practicality;

[0006] 2. In the use of the existing current transformer housing, the control column is rotated by turning the adjusting knob, and then the adjusting screw is rotated, so as to adjust the height of the current transformer housing. However, the control column needs to be rotatably connected with the adjusting column, and the position of the adjusting column or the adjusting knob cannot be limited, which will cause the control column to rotate due to external force, thereby affecting the stability of the current transformer housing.

[0007] To this end, we provide a current transformer housing to solve the above problems. Utility Model Content

[0008] The utility model aims to provide a current transformer housing, which solves the problems of limited rotation angle of the existing current transformer housing and poor stability of the current transformer housing after height adjustment by arranging an orientation adjustment component and a lifting component.

[0009] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0010] The utility model discloses a current transformer shell, comprising a placement platform, the placement platform is connected with an outer shell, the orientation adjustment component arranged on the peripheral side of the placement platform includes a placement box, the placement box is provided with a through slot, the middle part of the placement box is interference-connected with a bearing and is rotatably connected with the peripheral side of the placement platform, a circular gear arranged inside the placement box is sleeved on the peripheral side wall of the placement platform, a toothed plate is meshed and connected on the side wall of the circular gear, a connecting seat connected to the toothed plate is slidably connected with the through slot, and a nut is threadedly connected to the peripheral side of the screw fixed on the connecting seat; a lifting component is provided on the lower surface of the placement platform, the movable shaft in the lifting component is rotatably connected to the lower end of the placement platform, the peripheral side wall of the sleeve sleeved on the peripheral side of the movable shaft is provided with through holes at equal intervals, the peripheral side of the plug rod symmetrically fixed on the peripheral side wall of the movable shaft is sleeved with a ring, the return spring connected on the side wall of the ring is sleeved on the peripheral side wall of the plug rod, and the ring is plugged into the through hole.

[0011] The utility model is further configured such that the outer diameter of the screw is smaller than the inner width of the through slot, the outer diameter of the nut is larger than the inner width of the through slot, and the through slot is rectangular.

[0012] The utility model is further configured such that the connecting block connected to the tooth plate is away from the connecting seat, the connecting block is slidably connected to the through slot, the limiting rod connected to the connecting block contacts the upper surface of the placement box, and the outer diameter of the limiting rod is larger than the inner width of the through slot.

[0013] The utility model is further configured such that a box cover is abutted against the lower surface of the placement box, the upper ends of the screws threadedly connected at the four corners of the lower surface of the box cover are threadedly connected to the lower surface of the placement box, and the bearing with interference fit in the middle of the box cover is rotationally connected to the circumference of the placement table.

[0014] The utility model is further configured that a sliding rod is connected to the peripheral side wall of the movable shaft in an annular array, and a sliding groove is opened in an annular array on the inner peripheral side wall of the sleeve, and the sliding rod is slidably connected to the sliding groove.

[0015] The utility model is further configured that reinforcing rods are connected to the peripheral side wall of the movable shaft in an annular array, and the side wall of the reinforcing rods away from the movable shaft is connected to the lower surface of the box cover.

[0016] The utility model is further configured such that a placement assembly is provided on the lower surface of the sleeve, a placement plate in the placement assembly is connected to the lower end surface of the sleeve, an anti-slip pad is provided on the lower surface of the placement plate, and bolts threadedly connected at the four corners of the upper surface of the placement plate penetrate the anti-slip pad.

[0017] The utility model is further configured that the telescopic spring connected to the middle part of the upper surface of the placement plate is sleeved inside the sleeve, and the upper end of the telescopic spring contacts the lower end of the movable shaft.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model sets a direction adjustment component, pushes the screw to move the tooth plate, thereby driving the circular gear to rotate, the placement table to rotate, and then rotates to adjust the direction of the outer shell. After the outer shell is adjusted in any direction, the nut is tightened counterclockwise to limit the direction of the outer shell, and the rotation angle of the outer shell is not limited, thereby increasing the adjustment range of the outer shell angle, thereby improving the practicality of the current transformer housing.

[0020] 2. The utility model sets a lifting assembly, and fingers apply pressure to the two rings in opposite directions, and the reset spring contracts until the ring is completely moved into the interior of the sleeve, and an upward or downward force is applied to the movable shaft to move the movable shaft upward or downward, thereby adjusting the height of the placement table, and then adjusting the height of the outer shell. When the ring is aligned with the next through hole, the reset spring is reset, and the ring is inserted into the interior of the through hole to limit the position of the movable shaft, thereby improving the stability of the current transformer shell after the height adjustment.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 A schematic diagram of the structure of a current transformer housing Figure 1 ;

[0024] Figure 2 is an exploded schematic diagram of the orientation adjustment component;

[0025] Figure 3 It is a connection diagram of the circular gear, the toothed plate and the mounting platform;

[0026] Figure 4 A schematic diagram of the structure of a current transformer housing Figure 2 ;

[0027] Figure 5It is a schematic diagram of the connection between the box cover and the lifting assembly;

[0028] Figure 6 It is an exploded schematic diagram of the movable shaft, the plunger, the return spring and the collar;

[0029] Figure 7 It is a connection diagram of the movable shaft, telescopic spring and mounting plate.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1-placement table, 101-outer shell, 2-orientation adjustment component, 201-placement box, 201a-through slot, 202-box cover, 202a-screw, 202b-bearing, 203-tooth plate, 204-circular gear, 205-connecting block, 205a-limiting rod, 206-connecting seat, 206a-screw, 206b-nut, 3-lifting component, 301-sleeve, 301a-slide groove, 301b-through hole, 302-movable shaft, 302a-slide rod, 302b-reinforcement rod, 302c-telescopic spring, 303-ring, 303a-reset spring, 303b-insertion rod, 4-placement component, 401-placement plate, 401a-anti-slip pad, 401b-bolt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0034] See also Figure 1 , 2 , 3 and 4, the utility model is a current transformer housing, including a placement table 1, a peripheral side wall of the placement table 1 is provided with a direction adjustment component 2, the direction adjustment component 2 includes a placement box 201, a tooth plate 203, a circular gear 204, a connecting seat 206, a screw 206a and a nut 206b, by loosening the nut 206b, pushing the tooth plate 203, so that the circular gear 204 rotates, and then the direction of the placement table 1 is rotated to adjust the direction of the outer shell 101;

[0035] Specifically, the bearing 202b of the interference fit in the middle of the placement box 201 is rotatably connected to the placement platform 1, the circular gear 204 is sleeved on the circumferential side of the placement platform 1, and the circular gear 204 is located below the placement box 201, the tooth plate 203 is meshed and connected with the circular gear 204, a through groove 201a is provided on the placement box 201, a connecting seat 206 connected to the tooth plate 203 is slidably connected to the through groove 201a, and a nut 206a connected to the connecting seat 206 is threadedly connected to the circumferential side of the screw 206a 06b, the connecting block 205 connected to the tooth plate 203 is away from the connecting seat 206, the limiting rod 205a connected to the connecting block 205 is in contact with the upper surface of the placement box 201, the lower surface of the placement box 201 is abutted against a box cover 202, the screw 202a threadedly connected to the lower surface of the box cover 202 is threadedly connected to the lower surface of the placement box 201, the bearing 202b of the interference fit in the middle of the box cover 202 is rotatably connected to the peripheral side of the placement platform 1, and the placement platform 1 is connected to the outer shell 101;

[0036] Furthermore, the placement box 201 is of a bottom opening structure, the outer diameter of the nut 206b is larger than the inner width of the through slot 201a, the outer diameter of the limit rod 205a is larger than the inner width of the through slot 201a, and the screws 202a are arranged in a rectangular array;

[0037] The operation process of this embodiment is: loosen the nut 206b clockwise, push the screw 206a, the connecting seat 206 and the connecting block 205 slide along the through groove 201a, the tooth plate 203 moves, the circular gear 204 rotates, the placement table 1 rotates, the outer shell 101 rotates, and after adjusting the direction of the outer shell 101 to the working position, tighten the nut 206b counterclockwise, and the unidirectional movement of the tooth plate 203 is sufficient for the circular gear 204 to rotate one circle. Specific embodiment 2

[0039] See also Figure 1 , 4 , 5 and 6, based on the specific embodiment 1, a lifting assembly 3 is provided, the lifting assembly 3 includes a sleeve 301, a through hole 301b, a movable shaft 302, a collar 303, a reset spring 303a and a plug 303b, by squeezing the collar 303, the collar 303 is completely inserted into the sleeve 301, and an external force is applied to the movable shaft 302 to move the placement box 201 upward or downward, thereby adjusting the height of the outer shell 101, when the reset spring 303a is reset, the collar 303 is inserted into the corresponding through hole 301b, the position of the movable shaft 302 is limited, and the height of the outer shell 101 is stably limited;

[0040] Specifically, the movable shaft 302 is rotatably connected to the lower end surface of the placement table 1, the reinforcing rod 302b connected to the peripheral side wall of the movable shaft 302 is connected to the lower surface of the box cover 202, the sleeve 301 is sleeved on the peripheral side wall of the movable shaft 302, a sliding groove 301a is provided on the inner peripheral side wall of the sleeve 301, a sliding rod 302a is connected to the peripheral side wall of the movable shaft 302, the sliding rod 302a is slidably connected to the sliding groove 301a, a through hole 301b is provided on the peripheral side wall of the sleeve 301, the insertion rod 303b is connected to the peripheral side wall of the movable shaft 302, the ring 303 is sleeved on the peripheral side wall of the insertion rod 303b, and the ring 303 is plugged into the through hole 301b, and the return spring 303a connected to the side wall of the ring 303 is sleeved on the peripheral side wall of the insertion rod 303b;

[0041] Further, two groups of through holes 301b are provided, and each group of through holes 301b is opened at equal intervals, the two groups of through holes 301b are opened symmetrically, the reinforcing rods 302b are arranged in a circular array, the sliding rods 302a are arranged in a circular array, the sliding grooves 301a are opened in a circular array, and the insertion rods 303b are symmetrically arranged;

[0042] The operation process of this embodiment is as follows: the staff member presses the ring 303 with his finger, the reset spring 303a contracts, and the ring 303 completely enters the interior of the sleeve 301 along the insertion rod 303b, that is, the ring 303 is completely moved out of the interior of the through hole 301b. When a downward external force is applied to the movable shaft 302, the sliding rod 302a moves downward along the sliding groove 301a, and the ring 303 moves downward until the ring 303 is inserted into the interior of the next through hole 301b, thereby limiting the position of the movable shaft 302, and then stably limiting the height of the outer shell 101, and the height of the outer shell 101 increases; otherwise, the height of the outer shell 101 decreases. Specific embodiment three

[0044] See also Figure 1 and 7 On the basis of the specific embodiment 1 and the specific embodiment 2, a placement assembly 4 is provided, the placement assembly 4 comprises a placement plate 401, an anti-slip pad 401a and a bolt 401b, and the placement plate 401 is locked and connected to the placement surface by rotating the bolt 401b counterclockwise, thereby connecting the current transformer housing to the placement surface;

[0045] Specifically, the placement plate 401 is connected to the lower end surface of the sleeve 301, the upper end of the telescopic spring 302c connected to the placement plate 401 contacts the lower end of the movable shaft 302, the lower surface of the placement plate 401 is provided with an anti-slip pad 401a, and the placement plate 401 is threadedly connected with a bolt 401b;

[0046] Further, the bolts 401b are arranged in a rectangular array;

[0047] The operation process of this embodiment is: the staff places the anti-slip mat 401a steadily on the placement surface, tightens the bolt 401b counterclockwise until the bolt 401b is tightened to lock the placement plate 401 on the placement surface, and then locks the outer shell 101 on the placement surface, and then locks the current transformer housing on the placement surface; otherwise, the current transformer housing is removed.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A current transformer housing, comprising a mounting platform (1), an outer housing (101) being connected to the mounting platform (1), characterized in that: The orientation adjustment assembly (2) arranged on the peripheral side of the placement platform (1) comprises a placement box (201), a through slot (201a) is provided on the placement box (201), a bearing (202b) in the middle of the placement box (201) is connected to the peripheral side of the placement platform (1) for interference fit, a circular gear (204) arranged inside the placement box (201) is sleeved on the peripheral side wall of the placement platform (1), a toothed plate (203) is meshedly connected on the side wall of the circular gear (204), a connecting seat (206) connected to the toothed plate (203) is slidably connected to the through slot (201a), and a nut (206b) is threadedly connected to the peripheral side of a screw rod (206a) fixed to the connecting seat (206); A lifting assembly (3) is provided on the lower surface of the placement platform (1), wherein a movable shaft (302) in the lifting assembly (3) is rotatably connected to the lower end of the placement platform (1), and through holes (301b) are evenly spaced on the circumferential side wall of a sleeve (301) sleeved on the circumferential side of the movable shaft (302), and a sleeve (303) is sleeved on the circumferential side of an insertion rod (303b) symmetrically fixed on the circumferential side wall of the movable shaft (302), and a return spring (303a) connected to the side wall of the sleeve (303) is sleeved on the circumferential side wall of the insertion rod (303b), and the sleeve (303) is plugged into the through hole (301b).

2. A current transformer housing according to claim 1, characterized in that: The outer diameter of the screw rod (206a) is smaller than the inner width of the through slot (201a), the outer diameter of the nut (206b) is larger than the inner width of the through slot (201a), and the through slot (201a) is rectangular.

3. A current transformer housing according to claim 1, characterized in that: The connecting block (205) connected to the tooth plate (203) is away from the connecting seat (206), the connecting block (205) is slidably connected to the through slot (201a), the limiting rod (205a) connected to the connecting block (205) is in contact with the upper surface of the placement box (201), and the outer diameter of the limiting rod (205a) is greater than the inner width of the through slot (201a).

4. A current transformer housing according to claim 1, characterized in that: The lower surface of the placement box (201) is supported by a box cover (202), the upper ends of screws (202a) threadedly connected at the four corners of the lower surface of the box cover (202) are threadedly connected to the lower surface of the placement box (201), and a bearing (202b) in an interference fit in the middle of the box cover (202) is rotatably connected to the circumference of the placement platform (1).

5. A current transformer housing according to claim 1, characterized in that: The movable shaft (302) is connected to a sliding rod (302a) in an annular array on the peripheral side wall, and a sliding groove (301a) is provided in an annular array on the inner peripheral side wall of the sleeve (301), and the sliding rod (302a) is slidably connected to the sliding groove (301a).

6. A current transformer housing according to claim 5, characterized in that: Reinforcement rods (302b) are connected to the peripheral side wall of the movable shaft (302) in a ring array, and the reinforcement rods (302b) are connected to the lower surface of the box cover (202) away from the side wall of the movable shaft (302).

7. A current transformer housing according to claim 5, characterized in that: The lower surface of the sleeve (301) is provided with a placement assembly (4), a placement plate (401) in the placement assembly (4) is connected to the lower end surface of the sleeve (301), the lower surface of the placement plate (401) is provided with an anti-slip pad (401a), and bolts (401b) threadedly connected at four corners of the upper surface of the placement plate (401) penetrate the anti-slip pad (401a).

8. A current transformer housing according to claim 7, characterized in that: The telescopic spring (302c) connected to the middle of the upper surface of the placement plate (401) is sleeved inside the sleeve (301), and the upper end of the telescopic spring (302c) is in contact with the lower end of the movable shaft (302).

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