CN212253974U - Handle steering detection tool for circuit breaker - Google Patents

Abstract

The utility model relates to a technical field of circuit breaker, concretely relates to handle turns to examines utensil for circuit breaker, include: the handle can be limited in the swing mechanism and swings along with the swing mechanism, and the dial indicator head is positioned on the rotating radius of the handle; the handle steering gauge further comprises: a pressing part; the pressing part is erected at the top of the swinging mechanism; wherein prop open press the splenium, will the handle is arranged in swing mechanism's fixed position, again by press the splenium from top insertion and top tight the handle, at last by swing mechanism drive the handle swing has solved the problem that the handle falls in detecting its life in-process.

Description

Handle steering detection tool for circuit breaker

Technical Field

The utility model relates to a technical field of circuit breaker, concretely relates to handle turns to examines utensil for circuit breaker.

Background

Chinese patent CN103996579A discloses a sliding type switching device for low-voltage circuit breaker main wiring short circuit pre-detection, belonging to the field of low-voltage electrical apparatus accessories. The low-voltage circuit breaker comprises a contact system, a middle shaft, a locking device, an operating handle, a base and an arc extinguishing chamber, wherein the contact system comprises a moving contact mechanism, and the moving contact mechanism comprises a moving contact arm, and is characterized in that: the sliding type switching device comprises a pre-detection contact plate, a pair of sliding contact pieces and a pair of sliding contact plates, wherein the pre-detection contact plate is arranged in the middle of one side, opposite to the static contact mechanism, of the moving contact arm, the pair of sliding contact pieces are fixed at two ends of the pre-detection contact plate, the pair of sliding contact plates are fixed on the base and are in sliding fit with the pair of sliding contact pieces, each sliding contact plate comprises a fixing plate, insulating layers are arranged at two ends, close to the upper surface, of the fixing plate along a sliding track of each sliding contact piece, a conducting layer is arranged in the middle of the fixing plate, and when each sliding. The short-circuit fault detection device can be used for detecting the short-circuit fault of the main wiring at the load side before the low-voltage circuit breaker is switched on.

Among them, the conventional operating handle used in the circuit breaker generally comprises a rotating sleeve hinged in the circuit breaker and capable of linking the switch of the circuit breaker, a handle manually pulled, and a connecting rod connecting the rotating sleeve and the handle, after long-time use, the connecting rod is easy to break after being oxidized continuously, and after the handle is pressed/lifted continuously, the connecting rod can be bent, which can prevent the rotating sleeve from accurately linking the breaker to perform corresponding operation, therefore, a steering checking tool is required to be designed for detecting the service life of the breaking operation handle, but for circuit breakers with different specifications, the height of the operating handle which is erected during detection is different, the gravity center of the operating handle is also different, when the operating handle is erected higher, the operating handle is more easy to fall off during the detection, namely, the operating handle of the 1P circuit breaker, the 2P circuit breaker and the 3P circuit breaker is easy to fall off when the operating handle is detected.

Therefore, it is necessary to design a handle steering check tool for a circuit breaker, which can prevent the operating handle from falling.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that operating handle falls in detecting its life in-process among the prior art, the utility model provides a handle turns to examines utensil and solves above-mentioned problem for the circuit breaker.

The utility model provides a technical scheme that its technical problem adopted is: a handle steering gauge for a circuit breaker, comprising: the handle can be limited in the swing mechanism and swings along with the swing mechanism, and the dial indicator head is positioned on the rotating radius of the handle; the handle steering gauge further comprises: a pressing part; the pressing part is erected at the top of the swinging mechanism; the pressing part is opened, the handle is arranged at the fixing position of the swinging mechanism, the pressing part is inserted from the top and tightly props the handle, and finally the swinging mechanism drives the handle to swing.

Furthermore, the swing mechanism is provided with a sliding hole; the pressing part comprises a pressing sliding block inserted and sliding in the sliding hole, a pressing top block fixed at the top of the pressing sliding block and a pressing spring fixed at the bottom of the pressing sliding block; the pressing spring is fixed with the bottom of the swinging mechanism; wherein the pressing spring is stretched, and the handle can be placed at a fixed position of the swinging mechanism; and when the pressing spring is loosened, the pressing ejector block can slide downwards and push the handle tightly.

Furthermore, the pressing part also comprises a pressing insertion block fixed in the middle of the bottom wall of the pressing top block; wherein upon release of the compression spring, the compression plug is insertable into the handle.

Further, the handle comprises a rotating sleeve which can be fixed at the fixed position; the pressing insertion block is in a circular truncated cone shape with a large upper part and a small lower part; the inner diameter of the rotating sleeve is smaller than the maximum diameter of the pressing insertion block; the inner diameter of the rotating sleeve is larger than the minimum radius of the pressing insertion block; after the pressing insertion block is inserted into the rotating sleeve, the pressing top block can be suspended above the rotating sleeve.

Further, the width of the sliding hole is larger than that of the pressing slider; a stop block is fixed on the inner wall of the sliding hole at one side far away from the fixing position; the width of the stop block is not more than the thickness difference between the sliding hole and the pressing slide block; a limiting block is fixed on one side wall of the pressing slide block, which is far away from the fixing position; the pressing spring is stretched until the limiting block is blocked by the stop block to return, and the rotating sleeve is fixed at the fixing position; the limiting block is pushed laterally to enable the pressing sliding block to descend along the sliding hole, and the pressing spring contracts to enable the pressing insertion block to be inserted into and push against the rotating sleeve tightly.

Further, the swing mechanism comprises a mounting frame with a hollow middle part, a swing sleeve rotatably connected to the bottom of the mounting frame, a clamping part arranged at the top of the swing sleeve and a swing rod arranged on the lower side wall of the swing sleeve; the top of the mounting rack is provided with a fixing hole; after the rotating sleeve is inserted into the fixing hole, the clamping part limits the rotating sleeve, so that the rotating sleeve swings while the swinging sleeve rotates back and forth through the swinging rod.

Furthermore, three clamping grooves extending in the radial direction are formed in the upper end face of the swing sleeve; the clamping part comprises clamping components corresponding to the three clamping grooves respectively; the clamping assembly comprises a clamping slide block, a clamping base fixed on the clamping slide block and a clamping head fixed on the clamping base; wherein three of the clamping heads can be attached to the inner wall of the rotating sleeve to provide the fixing position.

Further, the handle also comprises a handle and a connecting rod for connecting the handle and the rotating sleeve; the mounting frame is fixed on a supporting seat; the supporting seat is positioned in the swinging area of the handle and is fixedly connected with an installation seat; the dial indicator is fixedly connected with the mounting seat; wherein the gauge head of the dial indicator extends into the turning radius of the handle.

Furthermore, a guide seat is fixed on the support seat at a position opposite to the mounting seat; the guide seat is in threaded connection with a guide stud; the guide stud is in threaded connection with the guide seat; the guide stud is rotatably connected with the supporting seat.

The beneficial effects of the utility model are that, the utility model provides a utensil is examined in handle steering for circuit breaker, the handle steering is examined the utensil and is still included: a pressing part; the pressing part is erected at the top of the swinging mechanism; during the use, strut earlier press splenium to handle can pass press the splenium, will again the handle is arranged in swing mechanism's fixed position, again by press splenium from the top to insert the handle, and then avoid the condition that the handle swings the in-process and fall down, simultaneously, press the splenium can push up tight handle to carry out axial packing force to the handle, avoid the handle to carry out the axial and beat, and then guaranteed the installation stability of handle, with the life of accurate detection handle, in order to guarantee that the handle can in time be changed in the circuit breaker use, avoid the condition of the unable control circuit breaker of handle.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a first perspective view of a preferred embodiment of a handle steering check tool for a circuit breaker of the present invention;

FIG. 2 is a second perspective view of a preferred embodiment of a handle steering check tool for a circuit breaker of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic structural view of a preferred embodiment of the clamping portion of the present invention.

In the drawings

The swing mechanism 1, the sliding hole 11, the stopper 12, the mounting frame 13, the fixing hole 131, the swing sleeve 14, the clamping groove 141, the clamping part 15, the clamping slider 151, the clamping base 152, the clamping head 153 and the swing rod 16;

a dial indicator 2;

the handle 3, the rotating sleeve 31, the handle 32 and the connecting rod 33;

a pressing part 4, a pressing slider 41, a stopper 411, a pressing top block 42, a pressing spring 43, and a pressing insertion block 44;

a supporting seat 5, an installation seat 51, a guide seat 52,

And a guide stud 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

Referring to the drawings, fig. 1 is a first perspective view of a preferred embodiment of a handle steering checking fixture for a circuit breaker according to the present invention; as shown in fig. 1, the utility model provides a utensil is examined in handle turns to for circuit breaker, include: the hand-held test tool comprises a swinging mechanism 1, the swinging mechanism 1 can rotate back and forth within a certain angle range, a dial indicator 2 is arranged in the swinging range of the swinging mechanism 1, a handle 3 can be limited in the swinging mechanism 1, the handle 3 can swing along with the swinging mechanism 1, meanwhile, the handle 3 can push a dial indicator head of the dial indicator 2, whether the handle 3 is bent or not is displayed through different readings of the dial indicator 2 after the handle 3 pushes the dial indicator head of the dial indicator 2 every time, specifically, if the readings of the dial indicator 2 measured for multiple times are different, the dial indicator is bent, the dial indicator head of the dial indicator 2 is positioned on the rotating radius of the handle 3 so as to ensure that the handle 3 can trigger the dial indicator 2 when rotating, and meanwhile, the stress condition of the handle 3 when the handle 3 is pressed is simulated through the reaction force of the dial indicator head of the dial indicator 2 on the handle 3 so as to detect the service life, however, the existing handle 3 has multiple specifications, and for the handles 3 with different specifications, the gravity centers of the handles 3 are different in the process of lying on the swing mechanism 1 and swinging, and when the gravity center of the handle 3 is higher, the handle 3 can fall down directly, and in order to solve the above problems, the following scheme needs to be adopted:

the handle 3 turns to and examines utensil still includes: a pressing part 4; the pressing part 4 is erected at the top of the swinging mechanism 1; during the use, strut earlier press splenium 4 to handle 3 to pass press splenium 4, will again handle 3 is arranged in swing mechanism 1's fixed position, again by press splenium 4 to insert handle 3 from the top, and then avoid the condition that handle 3 swings the in-process and fall down, simultaneously, press splenium 4 can push up tight handle 3 to carry out axial packing force to handle 3, avoid handle 3 to carry out the axial and beat, and then guaranteed handle 3's installation stability, with the life of accurate detection handle 3, in order to guarantee to change handle 3 in time in the use, avoid the condition of handle 3 uncontrollable circuit breaker.

Referring to fig. 2, fig. 2 is a second perspective view of a preferred embodiment of a handle steering checking fixture for a circuit breaker according to the present invention; as shown in fig. 1 and fig. 2, optionally, the swing mechanism 1 is provided with a sliding hole 11, the sliding hole 11 is a through hole, the sliding hole 11 can guide the pressing portion 4, so as to ensure the uniformity of the pressing portion 4 in pushing against the handle 3, and further, the handle 3 swings more stably; the pressing part 4 comprises a pressing slider 41 inserted and sliding in the sliding hole 11, namely the pressing slider 41 is matched with the sliding hole 11 in shape, a pressing top block 42 is fixed at the top of the pressing slider 41, and a pressing spring 43 is fixed at the bottom of the pressing slider 41; the pressing spring 43 is fixed at the bottom of the swing mechanism 1; when in use, the pressing top block 42 is lifted upwards to stretch the pressing spring 43 until the handle 3 can pass through the lower part of the pressing top block 42, and the handle 3 can be placed at a fixed position of the swinging mechanism 1; the pressing ejector block 42 is loosened, so that the pressing spring 43 rebounds to drive the pressing ejector block 42 to slide downwards and tightly push the handle 3, the swinging stability of the handle 3 is further ensured, and the service life of the handle 3 is accurately measured.

Preferably, the pressing portion 4 further includes a pressing insertion block 44 fixed at the middle of the bottom wall of the pressing top block 42; when the handle is used, the pressing spring 43 rebounds after the pressing top block 42 is loosened, the pressing insertion block 44 can be inserted into the handle 3, and the pressing insertion block 44 can be used as a rotating central shaft of the handle 3, so that the situation that the handle 3 falls down in the swinging process is avoided.

Preferably, if the handle 3 is pushed tightly directly by pressing the top block 42, the contact surface between the pressing top block 42 and the pushing handle 3 is too large, and the friction force between the pressing top block 42 and the pushing handle 3 is large, which may hinder the swing of the handle 3, so the following scheme is needed to solve the above problem, wherein the handle 3 comprises the rotating sleeve 31 which can be fixed at the fixed position; the pressing insertion block 44 is in a circular truncated cone shape with a large upper part and a small lower part; the inner diameter of the rotating sleeve 31 is smaller than the maximum diameter of the pressing insert 44; the inner diameter of the rotating sleeve 31 is larger than the minimum radius of the pressing insert 44; after the pressing insert 44 is inserted into the rotating sleeve 31, the pressing top block 42 can be suspended above the rotating sleeve 31, surface contact between the rotating sleeve 31 and the pressing top block 42 is changed into line contact between the rotating sleeve 31 and the pressing insert 44, and frictional resistance on the rotating sleeve 31 is greatly reduced, so that the handle 3 can be guaranteed to smoothly swing.

Referring to fig. 3, fig. 3 is a partial enlarged view of a portion a in fig. 2; as shown in fig. 1 to 3, optionally, the width of the sliding hole 11 is larger than the width of the pressing slider 41; a stop block 12 is fixed on the inner wall of the sliding hole 11 at one side far away from the fixing position, the stop block 12 is a right triangle, the right-angle side of the stop block 12 is horizontally arranged, and the stop block 12 is in an inverted form; the width of the stopper 12 is not greater than the thickness difference between the sliding hole 11 and the pressing slider 41, so that the pressing slider 41 can pass through the stopper 12; a limiting block 411 is fixed on one side wall of the pressing slider 41 far away from the fixing position, the limiting block 411 is also in a right-angled triangle shape, the limiting block 411 is in an upright shape, and the limiting block 411 is attached to the right-angled edge of the stopper 12; when the device is used, the pressing ejector block 42 is lifted to stretch the pressing spring 43 until the limiting block 411 passes through the stop block 12, the pressing slider 41 is pushed laterally until the limiting block 411 is seated on the stop block 12, the pressing ejector block 42 cannot descend to tightly push the rotating sleeve 31, and the rotating sleeve 31 can be smoothly installed on a fixed position; the stopper 411 is pushed laterally to enable the pressing slider 41 to descend along the sliding hole 11, and the pressing spring 43 contracts to drive the pressing plug 44 to insert into and push against the rotating sleeve 31, which can facilitate the stretching of the pressing spring 43 and the releasing of the pressing spring 43 at the same time.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a preferred embodiment of the clamping portion of the present invention, as shown in fig. 1 to 4, optionally, the swing mechanism 1 includes a mounting frame 13 with a hollow center, a swing sleeve 14 rotatably connected to the bottom of the mounting frame 13, a clamping portion 15 mounted on the top of the swing sleeve 14, and a swing rod 16 mounted on the lower sidewall of the swing sleeve 14; the top of the mounting frame 13 is provided with a fixing hole 131; the bottom at mounting bracket 13 is fixed to pressing spring 43, sliding hole 11 sets up at the top of mounting bracket 13, during the use, makes a round trip to promote swinging arms 16, swinging arms 16 rotate and drive swing sleeve 14 and rotate, and swing sleeve 14 rotates and drives through clamping part 15 and rotate cover 31 swing, rotates cover 31 swing and drives handle 3 swing.

Optionally, the upper end surface of the swing sleeve 14 is provided with three radially extending clamping grooves 141, and the clamping grooves 141 are T-shaped grooves to ensure the linearity of sliding therein; the clamping portion 15 includes clamping members respectively corresponding to the three clamping grooves 141; the clamping assembly comprises a clamping slide block 151, a clamping base 152 fixed on the clamping slide block 151 and a clamping head 153 fixed on the clamping base 152, specifically, the clamping base 152 is fixed on the clamping slide block 151 through a screw, and the clamping slide block 151 is slidably fixed in a clamping groove 141 to be adapted to rotating sleeves 31 with different inner diameter sizes; during the use, three the clamping head 153 can laminate the inner wall of rotating sleeve 31, in order to provide fixed position has guaranteed the fixed effect of rotating sleeve 31.

Optionally, the handle 3 further comprises a handle 32 and a connecting rod 33 connecting the handle 32 and the rotating sleeve 31; the mounting frame 13 is fixed on a supporting seat 5; the supporting seat 5 is fixedly connected with an installation seat 51 in the swinging area of the handle 32; the dial indicator 2 is fixedly connected with the mounting seat 51; the head of the dial indicator 2 extends into the turning radius of the handle 32, and the handle 32 pushes the head of the dial indicator 2 to change the size of the measuring connecting rod 33 of the dial indicator 2.

Preferably, in order to further improve the applicability of the present embodiment, a guide seat 52 is fixed to the support seat 5 at a position opposite to the mounting seat 51; the guide seat 52 is in threaded connection with a guide stud 6; the guide stud 6 is in threaded connection with the guide seat 52; the guide stud 6 is rotatably connected with the support seat 5, and the mounting frame 13 slides along the support seat 5 by rotating the guide stud 6, so that the distance between the mounting frame 13 and the dial indicator 2 is changed, and the dial indicator is suitable for connecting rods 33 with different lengths.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (9)

1. A handle steering gauge for a circuit breaker, comprising: a swinging mechanism and a dial indicator, wherein the swinging mechanism is arranged on the dial indicator,

the handle can be limited in the swing mechanism and swings along with the swing mechanism, an

The dial indicator head is positioned on the rotating radius of the handle; it is characterized in that the preparation method is characterized in that,

the handle steering gauge further comprises: a pressing part;

the pressing part is erected at the top of the swinging mechanism; wherein

And (3) opening the pressing part, arranging the handle in a fixing position of the swinging mechanism, inserting the pressing part from the top and tightly ejecting the handle, and finally driving the handle to swing by the swinging mechanism.

2. The handle steering gauge for circuit breakers of claim 1,

the swing mechanism is provided with a sliding hole;

the pressing part comprises a pressing sliding block inserted and sliding in the sliding hole, a pressing top block fixed at the top of the pressing sliding block and a pressing spring fixed at the bottom of the pressing sliding block; and

the pressing spring is fixed with the bottom of the swinging mechanism; wherein

The pressing spring is stretched, and the handle can be placed at a fixed position of the swinging mechanism;

and when the pressing spring is loosened, the pressing ejector block can slide downwards and push the handle tightly.

3. The handle steering gauge for circuit breakers of claim 2,

the pressing part also comprises a pressing insertion block fixed in the middle of the bottom wall of the pressing top block; wherein

And the pressing insertion block can be inserted into the handle by loosening the pressing spring.

4. The handle steering gauge for circuit breakers of claim 3,

the handle comprises a rotating sleeve which can be fixed at the fixed position;

the pressing insertion block is in a circular truncated cone shape with a large upper part and a small lower part;

the inner diameter of the rotating sleeve is smaller than the maximum diameter of the pressing insertion block;

the inner diameter of the rotating sleeve is larger than the minimum radius of the pressing insertion block; wherein

After the pressing insert block is inserted into the rotating sleeve, the pressing top block can be suspended above the rotating sleeve.

5. The handle steering gauge for circuit breakers of claim 4,

the width of the sliding hole is larger than that of the pressing slider;

a stop block is fixed on the inner wall of the sliding hole at one side far away from the fixing position;

the width of the stop block is not more than the thickness difference between the sliding hole and the pressing slide block; and

a limiting block is fixed on one side wall of the pressing slide block, which is far away from the fixing position; wherein

The pressing spring is stretched until the limiting block is blocked by the stop block to return, and the rotating sleeve is fixed at the fixing position;

the limiting block is pushed laterally to enable the pressing sliding block to descend along the sliding hole, and the pressing spring contracts to enable the pressing insertion block to be inserted into and push against the rotating sleeve tightly.

6. The handle steering gauge for circuit breakers of claim 5,

the swing mechanism comprises a mounting frame with a hollow middle part, a swing sleeve rotatably connected to the bottom of the mounting frame, a clamping part arranged at the top of the swing sleeve and a swing rod arranged on the lower side wall of the swing sleeve; and

the top of the mounting rack is provided with a fixing hole; wherein

After the rotating sleeve is inserted into the fixing hole, the clamping part limits the rotating sleeve, so that the rotating sleeve swings while the swinging sleeve rotates back and forth through the swinging rod.

7. The handle steering gauge for circuit breakers of claim 6,

the upper end face of the swing sleeve is provided with three radially extending clamping grooves;

the clamping part comprises clamping components corresponding to the three clamping grooves respectively;

the clamping assembly comprises a clamping slide block, a clamping base fixed on the clamping slide block and a clamping head fixed on the clamping base; wherein

The three clamping heads can be attached to the inner wall of the rotating sleeve to provide the fixing position.

8. The handle steering gauge for circuit breakers of claim 7,

the handle also comprises a handle and a connecting rod for connecting the handle and the rotating sleeve;

the mounting frame is fixed on a supporting seat;

the supporting seat is positioned in the swinging area of the handle and is fixedly connected with an installation seat;

the dial indicator is fixedly connected with the mounting seat; wherein

The dial indicator head extends into the turning radius of the handle.

9. The handle steering gauge for circuit breakers of claim 8,

a guide seat is fixed on the support seat at a position opposite to the mounting seat;

the guide seat is in threaded connection with a guide stud;

the guide stud is in threaded connection with the guide seat;

the guide stud is rotatably connected with the supporting seat.

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