CN214477274U - Drawing device and plug-in circuit breaker - Google Patents

Abstract

Draw-off gear and plug-in circuit breaker, draw-off gear include fixed handle, activity handle and the clamping structure who is connected with the activity handle, and the activity handle is kept away from or can be close to when fixed handle order about clamping structure and opens and shut and release or press from both sides tightly and treat and press from both sides the object, the direction that the removal direction when the activity handle is close to fixed handle will treat that to press from both sides the object and remove when drawing the object is the same with draw-off gear, exerts the withdrawal force when exerting clamping-force, is convenient for very much draw the messenger power, and the operation of drawing of less space of being convenient for is fit for being used for extracting plug-in circuit breaker from the rack. The plug-in circuit breaker has a pull-out as an accessory.

Description

Drawing device and plug-in circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus field especially relates to a plug-in circuit breaker's draw-off gear.

Background

The plug-in circuit breaker is inserted into the cabinet to control the on-off of the circuit and break the circuit when the circuit fails, so that the circuit is protected. The plug-in circuit breakers are inserted into the cabinet side by side, and when the plug-in circuit breakers are taken out, the circuit breakers are taken out from the cabinet through drawing the button, and the button is small and is inconvenient to draw. In the prior art, a drawing opening matched with the shape of a button is clamped on the button and is drawn out. Because the circuit breaker is installed more side by side, dismantle wherein 1 circuit breaker often will be in different states (combined floodgate) with its peripheral circuit breaker button, could embolia the button with drawing the instrument and draw the operation, the operation is very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a drawing device, be fit for being arranged in extracting bayonet circuit breaker from the rack.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a drawing device, includes fixed handle, activity handle and the clamping structure who is connected with the activity handle, the activity handle can order about clamping structure to open and shut and let out or press from both sides tightly and wait to press from both sides the object when keeping away from or being close to fixed handle, the direction of movement that the activity handle is close to fixed handle when will waiting to press from both sides the object and press from both sides the direction that the object was removed when drawing device draws the object is the same.

Preferably, fixed handle is fixed to be located handle body one end, and the handle body other end is located to clamping structure, and activity handle slidable mounting lies in between fixed handle and the clamping structure on the handle body, and the activity handle is along the length direction straight line slip of handle body, and the activity handle orders about clamping structure when moving to fixed handle one end and presss from both sides tightly waiting to press from both sides the object, orders about clamping structure when moving to keeping away from fixed handle one end and releases waiting to press from both sides the object.

Preferably, the fixed handle and the handle body are T-shaped, the movable handle comprises a movable handle rod and a movable rod body, the movable rod body is vertically connected with the middle of the movable handle rod to enable the movable handle to be T-shaped, the movable rod body is in linear sliding fit with the handle body, the movable handle rod is parallel to the fixed handle, and two ends of the movable handle rod respectively extend out of two sides of the handle body to be used for user operation.

Preferably, the clamping structure comprises a first pull rod and a second pull rod, one end of the movable handle is hinged to one end of the first connecting rod and one end of the second connecting rod, the other end of the first connecting rod and the other end of the second connecting rod are hinged to one end of the first pull rod and one end of the second pull rod respectively, the middle of the first pull rod is hinged to the middle of the second pull rod, clamping protrusions are arranged on the opposite protrusions of the other ends of the first pull rod and the second pull rod, and the movable handle drives the first pull rod and the second pull rod to rotate to enable the clamping protrusions to be separated from each other and close to release or clamp the object to be clamped.

Preferably, the other end of the handle body is provided with a clamping shell for accommodating the clamping structure, the first connecting rod, the second connecting rod, the first pull rod and the second pull rod are arranged in a cavity of the clamping shell, one end of the clamping shell is provided with an opening, and the clamping bulges of the first pull rod and the second pull rod extend out of the opening.

Preferably, a guide groove and a pivot hole are formed in the clamping shell, the guide groove is long-strip-shaped, the length direction of the guide groove is parallel to the moving direction of the movable handle, the first positioning shaft penetrates through the movable handle, the first connecting rod and the second connecting rod to be installed in the guide groove, the first pull rod and the second pull rod are arranged in a stacked mode, and the second positioning shaft penetrates through the first pull rod and the second pull rod to be installed in the pivot hole.

Preferably, the handle further comprises a return spring for driving the movable handle to move towards the end far away from the fixed handle.

Preferably, first pull rod and second pull rod all include the pull rod linking arm and the pull rod centre gripping arm of interconnect, the thickness of pull rod linking arm is less than the thickness of pull rod centre gripping arm and forms and connect range upon range of step, the one end that the pull rod linking arm is close to the pull rod centre gripping arm is equipped with the pull rod centre bore, the pull rod linking arm other end is equipped with the pull rod hinge hole, the one end bending type protrusion that the pull rod linking arm was kept away from to the pull rod centre gripping arm is equipped with the centre gripping arch, be formed with the arm-tie and dodge the groove between the centre gripping arch and the pull rod centre gripping arm other end, first pull rod and second pull rod pass through the range upon range of setting of pull rod linking arm, the second location axle passes the pull rod centre bore of first pull rod and second pull rod is installed in the pivot hole.

Preferably, the fixed handle and the movable handle have a length of between 5cm and 10cm, and the farthest distance between the fixed handle and the movable handle is less than 10 cm.

The utility model also provides a plug-in circuit breaker, including the circuit breaker casing, the both ends that the circuit breaker casing is relative are equipped with first binding post and second binding post respectively, and first binding post and second binding post are used for connecting wire respectively, and the circuit breaker casing is equipped with the button in the one end that is equipped with first binding post, still including the accessory that is used for drawing plug-in circuit breaker, the accessory does the utility model discloses foretell drawing device.

The utility model discloses a drawing device, it is equipped with fixed handle and activity handle, and the application of force makes activity handle drive clamping structure press from both sides tightly the time, and the activity handle is to being close to the removal of fixed handle direction and moving direction and the extraction direction of extracting the object the same, exerts the withdrawal force when exerting the clamping-force, is convenient for very much draw the messenger power, and the operation of drawing in the less space of being convenient for is fit for being used for extracting bayonet circuit breaker from the rack.

In addition, the clamping protrusions are arranged on the pull rods of the clamping structures, clamping is carried out through the clamping protrusions, an avoiding space is formed between the pull rods, drawing operation is facilitated, and simple clamping operation is not achieved.

In addition, the drawing device is simple in structure and convenient to operate by one hand.

Drawings

Fig. 1 is a schematic diagram of the use and cooperation of the drawing device and the plug-in circuit breaker of the present invention;

FIG. 2 is a schematic view of the overall structure of a first embodiment of the drawing apparatus;

FIG. 3 is a schematic view of the internal structure of the first embodiment of the drawing apparatus;

FIG. 4 is a schematic diagram of a first embodiment of the drawing apparatus;

FIG. 5 is a schematic structural diagram of a housing of the first embodiment of the drawing device;

FIG. 6 is a schematic view of the movable handle and the clamping structure of the first embodiment of the pulling device;

FIG. 7 is a schematic view of the assembly of the movable handle and the clamping structure of the first embodiment of the pulling device;

FIG. 8 is a schematic view of the structure of the pull rod of the clamping structure of the first embodiment of the drawing device;

FIG. 9 is a schematic view of a link of the clamping structure of the first embodiment of the drawing device;

FIG. 10 is a schematic view of the movable handle of the clamping structure of the first embodiment of the pulling device.

Detailed Description

The following provides an example with reference to the accompanying drawings, further illustrating the specific implementation of the drawing device of the present invention. The plug-in circuit breaker of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1, the utility model discloses a drawing device, including fixed handle 12, movable handle 23 and the clamping structure 20 of being connected with movable handle 23, movable handle 23 is kept away from or can be close to when fixed handle 12 order about clamping structure 20 to open and shut and relieve or press from both sides tightly and wait to press from both sides the object, and movable handle 23 is close to the moving direction that fixed handle 12 when pressing from both sides the object tightly and the direction that drawing device removed when drawing the object and is the same, is convenient for draw and makes the power.

The utility model discloses a draw-off gear is used for drawing plug-in circuit breaker, is a fitting of plug-in circuit breaker. As shown in fig. 1, the plug-in circuit breaker includes a circuit breaker housing, and a contact mechanism, a protection mechanism and other elements disposed in the circuit breaker housing, wherein a first connection terminal 91 and a second connection terminal 92 are respectively disposed at two opposite ends of the circuit breaker housing, the first connection terminal 91 and the second connection terminal 92 are respectively used for connecting wires, and a button 93 is disposed at one end of the circuit breaker housing where the first connection terminal 91 is disposed. The breaker shell is of a cuboid structure and comprises an operation surface and a rear end surface which are oppositely arranged, an upper end surface and a lower end surface which are oppositely arranged, and a first side surface and a second side surface which are oppositely arranged; the operation surface is provided with a button 93 and a first wiring terminal 91, and the rear end surface is provided with a second wiring terminal 92. When the circuit breaker is used, a plurality of plug-in circuit breakers are inserted into a 1U cabinet side by side, the on-off control of the circuit is realized by pressing and pulling the button 93 to switch on and switch off the circuit, and the circuit is tripped and disconnected when the circuit fails, so that the circuit is protected. When the plug-in circuit breaker needs to be pulled out, the button 93 is pulled out continuously in the opening state, the circuit breaker is pulled out from the cabinet, and the first protrusion 931 and the second protrusion 932 convenient for the pulling operation are arranged above and below the button 93. Because the circuit breakers are installed side by side, the space is limited, the circuit breakers and the buttons 93 are very small, force application is inconvenient, and operation is unchanged.

The utility model provides a drawing device, it is equipped with the clamping structure 20 that is used for centre gripping bayonet circuit breaker's button 93, and especially application of force makes movable handle 23 drive clamping structure 20 press from both sides when pressing from both sides tight button 93, and movable handle 23 is the same to being close to the extraction direction that fixed handle 12 direction removed and moving direction and extracted bayonet circuit breaker, exerts the extraction force when exerting the clamping-force, is convenient for very much draw the messenger's power. It should be noted that, the drawing device of this embodiment pulls out the circuit breaker from the cabinet through the clamping button 93, and of course, other mechanisms on the clamping circuit breaker casing can also be used to pull out the circuit breaker from the cabinet, which all belong to the protection scope of the present invention.

As shown in fig. 2 to 3, the drawing device of the present embodiment includes a housing 11, the housing 11 includes a fixed handle 12, a handle 14 and a clamping housing 15, the fixed handle 12 and the clamping housing 15 are respectively located at two ends of the handle 14, a movable handle 23 is slidably mounted on the handle 14, and the clamping housing 15 is used for accommodating a clamping structure 20. The fixed handle 12 is fixedly arranged at one end of the handle body 14, the clamping structure 20 is arranged at the other end of the handle body 14, the movable handle 23 is slidably arranged on the handle body 14 and is positioned between the fixed handle 12 and the clamping structure 20, the movable handle 23 linearly slides along the length direction of the handle body 14, the movable handle 23 drives the clamping structure 20 to clamp an object to be clamped when moving towards one end of the fixed handle 12, drives the clamping structure 20 to release the object to be clamped when moving towards one end far away from the fixed handle 12, and exerts the pulling force while exerting the clamping force.

Preferably, the fixed handle 12 and the handle body 14 are in a T shape, the movable handle 23 comprises a movable handle rod 231 and a movable rod 232, the movable rod 232 is vertically connected with the middle of the movable handle rod 231 to enable the movable handle 23 to be in a T-shaped structure, the movable rod 232 is in linear sliding fit with the handle body 14, the movable handle rod 231 is parallel to the fixed handle 12, and two ends of the movable handle rod 231 respectively extend out from two sides of the handle body 14 for user operation. The fixed handle 12 and the movable handle rod 231 both extend out from the two sides of the handle body 14, so that the single-hand operation of a user is facilitated, and the user holds the fixed handle 12 and the movable handle rod 231 with one hand to apply clamping force and simultaneously apply extraction force to extract the circuit breaker.

Specifically, the handle body 14 is in the shape of a long bar, the handle body 14 is provided with a movable groove 141 for accommodating the sliding of the movable rod 232, the movable groove 141 is arranged along the length direction of the handle body 14, so that the movable handle 23 can slide linearly along the length direction of the handle body 14, and two ends of the movable handle rod 231 respectively extend out of two sides of the handle body 14.

Preferably, as shown in fig. 3-4, the clamping structure 20 of the present embodiment includes two pull rods 21, and the clamping structure 20 drives the two pull rods 21 to rotate through two connecting rods 22 respectively to clamp and release the object to be clamped. The two pull rods 21 are respectively a first pull rod and a second pull rod, the two connecting rods 22 are respectively a first connecting rod and a second connecting rod, one end of the movable handle 23 is hinged with one end of the first connecting rod and one end of the second connecting rod, the other ends of the first connecting rod and the second connecting rod are respectively hinged with one end of the first pull rod and one end of the second connecting rod, the middle part of the first pull rod is hinged with the middle part of the second pull rod, clamping protrusions 211 are convexly arranged at the other ends of the first pull rod and the second pull rod in opposite directions, and the movable handle 23 drives the first pull rod and the second pull rod to rotate to enable the clamping protrusions 211 to be mutually separated and close to release or clamp an object to be clamped.

The two pull rods 21 are symmetrically arranged, the two clamping protrusions 211 are oppositely arranged, and the clamping protrusions 211 are arranged on the pull rods 21, so that when the clamping protrusions 211 clamp the button 93, a space for accommodating the button 93 is formed between the pull rods 21. Referring to the schematic diagram of fig. 4, when the movable handle 23 moves to the left, the two links 22 drive the two pull rods 21 to rotate relatively, and the holding protrusion 211 can engage with the object to be pulled. When the movable handle 23 moves to the right, the two pull rods 21 are driven to rotate reversely by the two connecting rods 22, and the clamping protrusions 211 release the object to be drawn. Preferably, the pulling device further comprises a return spring 16 for driving the movable handle 23 to move towards the end far away from the fixed handle 12, so as to drive the clamping structure 20 to release the object to be pulled. The movable handle 23 moves leftwards to be close to the fixed handle 12, so that the two pull rods 21 are meshed, the movable handle 23 is released, the movable handle 23 moves rightwards under the action of the force of the return spring 16, and the two pull rods 21 are automatically opened. The clamping structure 20 of the present embodiment has a simple structure, is easy to assemble, and is low in cost. Other clamping arrangements may of course be used as desired.

Specifically, as shown in fig. 5 to 7, the first connecting rod, the second connecting rod, the first pull rod and the second pull rod are installed in the cavity of the clamping housing 15, an opening 153 is formed at one end of the clamping housing 15, and the clamping protrusions 211 of the first pull rod and the second pull rod protrude from the opening 153. The clamping shell 15 is internally provided with a guide groove 151 and a pivot hole 152, the guide groove 151 is long-strip-shaped, the length direction of the guide groove 151 is parallel to the moving direction of the movable handle 23, the first positioning shaft 31 penetrates through the movable handle 23, the first connecting rod and the second connecting rod and is installed in the guide groove 151, the first positioning shaft 31 slides in the guide groove 151, the first pull rod and the second pull rod are arranged in a stacked mode, the second positioning shaft 33 penetrates through the first pull rod and the second pull rod and is installed in the pivot hole 152, and the first pull rod and the second pull rod can rotate around the second positioning shaft 33. The first link and the first pull rod are hinged by a first hinge shaft 32, and the second link and the second pull rod are hinged by a second hinge shaft 34.

Referring to fig. 2-3 and 5, the fixed handle 12, the handle body 14 and the clamping shell 15 form a shell 11 of the drawing device, and the movable handle 23 and the clamping structure 20 are arranged in the shell 11; the handle body 14 is provided with a cavity for accommodating the movable handle 23, the clamping shell 15 is provided with a cavity for accommodating the clamping structure 20, the cavity of the handle body 14 is communicated with the cavity of the clamping shell 15, the movable handle rod 231 of the movable handle 23 extends out from two sides of the cavity, the movable rod body 232 is in sliding fit in the cavity of the handle body 14 and the first positioning shaft 31 slides in the guide groove 151, the first connecting rod and the second connecting rod drive the first pull rod and the second pull rod to rotate respectively, so that the clamping protrusions 211 are separated and close to release or clamp an object to be clamped, and the return spring 16 is arranged between the movable handle 23 and the fixed handle 12. Casing 11 is closed by last casing and lower casing lid and forms, goes up casing and casing down and all includes integrated into one piece's half fixed handle 12, half handle body 14 and half centre gripping casing 15, and back in the casing was installed down to activity handle 23 and clamping structure 20, goes up casing and casing lid and closes the completion assembly down, assembles simple and conveniently.

Preferably, as shown in fig. 8, the two pull rods 21 each include a pull rod connecting arm and a pull rod clamping arm connected to each other, the thickness of the pull rod connecting arm is smaller than that of the pull rod clamping arm to form a connection stacking step, a pull rod central hole 212 is formed in one end of the pull rod connecting arm close to the pull rod clamping arm, a pull rod hinge hole 213 is formed in the other end of the pull rod connecting arm, a clamping protrusion 211 is formed in a bending protrusion of one end of the pull rod clamping arm far from the pull rod connecting arm, and a pull plate avoiding groove 214 is formed between the clamping protrusion 211 and the other end of the pull rod clamping arm. As shown in fig. 9, both ends of the two links 22 are provided with a first link hole 221 and a second link hole 222, respectively. Preferably, as shown in fig. 10, the movable handle 23 includes a movable handle bar 231 and a movable bar 232 in a T shape, one end of the movable bar 232 is vertically connected to the middle of the movable handle bar 231, the other end of the movable bar is provided with a movable bar hole 234, a spring hole 233 for installing the return spring 16 is provided on the side of the movable handle bar 231 away from the movable bar 232, one end of the return spring 16 is installed in the spring hole 233, and the other end of the return spring is connected to the movable handle 23.

As shown in fig. 6 to 7, the first and second tie rods are stacked via tie rod connecting arms, the second positioning shaft 33 passes through the tie rod center holes 212 of the first and second tie rods and is installed in the pivot hole 152, the first hinge shaft 32 passes through the second link hole 222 of the first link rod and the tie rod hinge hole 213 of the first tie rod, the second hinge shaft 34 passes through the second link hole 222 of the second link rod and the tie rod hinge hole 213 of the second tie rod, one end of the first link rod, one end of the movable shaft 232 and one end of the second link rod are sequentially stacked, and the first positioning shaft 31 passes through the first link hole 221 of the first link rod, the movable shaft hole 234 and the first link hole 221 of the second link rod in sequence.

Preferably, the length of the fixed handle 12 and the movable handle bar 231 of the present embodiment is equivalent to the width of the palm of an adult, and preferably, the length of the fixed handle 12 and the movable handle bar 231 is between 5cm and 10cm, and the farthest distance between the fixed handle 12 and the movable handle bar 231 is less than 10 cm. The pulling device of the embodiment is simple in structure, a user can hold the fixed handle 12 by one hand and pull the movable handle 23, the two pull rods 21 can be meshed, the movable handle 23 is released, the pull rods 21 are automatically opened, the movable handle 23 moves towards the direction close to the fixed handle 12, the moving direction is the same as the pulling direction of pulling out the plug-in circuit breaker, the pulling force is applied while the clamping force is applied, and the pulling force is very convenient to pull.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a drawing device, includes fixed handle (12), activity handle (23) and the clamping structure (20) be connected with activity handle (23), can order about clamping structure (20) to open and shut and release or press from both sides tightly and wait to press from both sides the object when activity handle (23) are kept away from or are close to fixed handle (12), its characterized in that: the moving direction of the movable handle (23) close to the fixed handle (12) when clamping the object to be clamped is the same as the moving direction of the drawing device when drawing the object.

2. The pulling apparatus of claim 1, wherein: fixed handle (12) are fixed and are located handle body (14) one end, the handle body (14) other end is located in clamping structure (20), activity handle (23) slidable mounting is located between fixed handle (12) and clamping structure (20) on handle body (14), activity handle (23) are along the length direction straight line slip of handle body (14), it presss from both sides the article to order about clamping structure (20) when activity handle (23) move to fixed handle (12) one end, order about clamping structure (20) to release when moving to keeping away from fixed handle (12) one end and wait to press from both sides the article.

3. The pulling apparatus of claim 2, wherein: the fixed handle (12) and the handle body (14) are in a T shape, the movable handle (23) comprises a movable handle rod (231) and a movable rod body (232), the movable rod body (232) is vertically connected with the middle of the movable handle rod (231) to enable the movable handle (23) to be in a T-shaped structure, the movable rod body (232) is in linear sliding fit with the handle body (14), the movable handle rod (231) is parallel to the fixed handle (12), and two ends of the movable handle rod (231) respectively extend out of two sides of the handle body (14) to be used for user operation.

4. The drawing apparatus as claimed in claim 2 or 3, wherein: clamping structure (20) include first pull rod and second pull rod, activity handle (23) one end is articulated with the one end of first connecting rod and second connecting rod, and the other end of first connecting rod and second connecting rod is articulated with the one end of first pull rod and second pull rod respectively, and the middle part of first pull rod and the middle part of second pull rod are articulated, and the other end of first pull rod and second pull rod is protruding to be equipped with centre gripping arch (211) in opposite directions, and activity handle (23) are through first connecting rod and second connecting rod, drive first pull rod and second pull rod rotate and make centre gripping arch (211) alternate segregation with be close to in order to relieve or press from both sides tight object of treating.

5. The pulling apparatus of claim 4, wherein: the handle body (14) other end is equipped with holds centre gripping casing (15) of holding clamping structure (20), first connecting rod, second connecting rod, first pull rod and second pull rod are installed in the cavity of centre gripping casing (15), and centre gripping casing (15) one end is equipped with opening (153), and the centre gripping of first pull rod and second pull rod is protruding (211) from opening (153).

6. The pulling apparatus of claim 5, wherein: be equipped with guide way (151) and pivot hole (152) in centre gripping casing (15), guide way (151) growing up the bar and its length direction is parallel with the moving direction of activity handle (23), and first locating shaft (31) pass activity handle (23), first connecting rod and second connecting rod are installed in guide way (151), first pull rod and the range upon range of setting of second pull rod, second locating shaft (33) pass first pull rod and second pull rod are installed in pivot hole (152).

7. The pulling apparatus of claim 1, wherein: the handle also comprises a return spring (16) which is used for driving the movable handle (23) to move towards one end far away from the fixed handle (12).

8. The pulling apparatus of claim 6, wherein: first pull rod and second pull rod all include the pull rod linking arm and the pull rod centre gripping arm of interconnect, the thickness of pull rod linking arm is less than the thickness of pull rod centre gripping arm and forms and connect range upon range of step, the one end that the pull rod linking arm is close to the pull rod centre gripping arm is equipped with pull rod centre bore (212), the pull rod linking arm other end is equipped with pull rod hinge hole (213), the one end bending type protrusion that the pull rod linking arm was kept away from to the pull rod centre gripping arm is equipped with centre gripping arch (211), be formed with the arm-tie between the centre gripping arch (211) and the pull rod centre gripping arm other end and keep away groove (214), first pull rod and second pull rod pass through the range upon range of pull rod linking arm and set up, second location axle (33) pass the pull rod centre bore (212) of first pull rod and second pull rod are installed in pivot hole (152).

9. The pulling apparatus of claim 3, wherein: the length of the fixed handle (12) and the movable handle rod (231) is between 5cm and 10cm, and the farthest distance between the fixed handle (12) and the movable handle rod (231) is less than 10 cm.

10. The utility model provides a plug-in circuit breaker, includes the circuit breaker casing, the both ends that the circuit breaker casing is relative are equipped with first binding post (91) and second binding post (92) respectively, and first binding post (91) and second binding post (92) are used for connecting wire respectively, and the circuit breaker casing is equipped with button (93), its characterized in that at the one end that is equipped with first binding post (91): further comprising an accessory for pulling a plug-in circuit breaker, said accessory being a pulling device according to any one of claims 1-9.

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