CN210723927U

CN210723927U - Small unit drawer is with impeling combined floodgate interlocking device and combined floodgate interlocking unit

Info

Publication number: CN210723927U
Application number: CN201922009349.2U
Authority: CN
Inventors: 田曾云; 王学礼
Original assignee: Shandong Chunxu Electrical Co ltd
Current assignee: Shandong Chunxu Electrical Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-06-09
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a small unit drawer is with impelling combined floodgate interlocking device and combined floodgate interlocking unit, combined floodgate interlocking unit includes mounting panel, combined floodgate linkage structure, linkage plate and locking plate; the switching-on linkage structure is rotatably arranged on the rear end surface of the mounting plate, and one end of the switching-on linkage structure is movably connected with the linkage plate and used for driving the linkage plate to vertically or obliquely move on the mounting plate; the locking plate is transversely installed on the front end face of the installation plate in a sliding mode, and the upper extending portion of the locking plate is movably connected with the linkage plate and used for transversely moving under the driving of the linkage plate so as to lock or unlock the drawer locking unit. The propulsion switching-on interlocking mechanism comprises a mounting substrate, a drawer locking unit and a switching-on interlocking unit. The utility model discloses simple structure is compact, integrate the degree height, be applicable to little unit drawer and use.

Description

Small unit drawer is with impeling combined floodgate interlocking device and combined floodgate interlocking unit

Technical Field

The utility model belongs to the technical field of electrical control, especially, relate to a little unit drawer is with impelling combined floodgate interlocking device and combined floodgate interlocking unit.

Background

The low-voltage draw-out switch complete equipment is widely applied, and the core component of the low-voltage draw-out switch complete equipment is a unit drawer provided with electrical elements (all the electrical elements can be connected to form an auxiliary circuit and a strong circuit).

The unit drawers may be divided into two types according to size, wherein the small unit drawer is limited by an inner space, so that a drawer push interlocking mechanism thereof is also different from that of the large unit drawer. The existing push interlocking mechanism for the small unit drawer is mainly of a hand-pulling type, and the mechanism has the following defects in practical application: firstly, the locking unit and the interlocking unit of the mechanism are split, so that inconvenience is brought to the assembly and debugging of complete equipment; the existing interlocking unit structure occupies a large space, and even if the existing interlocking unit structure can be integrated into the mechanism, the existing interlocking unit structure is not suitable for being used in small unit drawers with small space. Secondly, due to the limitation of a design structure, the auxiliary contact of the pushing interlocking mechanism for the existing small unit drawer can only be arranged at one of three positions of test, connection and electric operation and cannot be arranged at the same time; the existing mechanism can not realize the accurate locking of the drawer at different positions, so the existing mechanism is not suitable for the market demand; and the mechanism shell is made of plastic, so that the mechanism shell is easily damaged under the influence of the impact force of the drawer in actual use.

SUMMERY OF THE UTILITY MODEL

Aiming at overcoming the defects existing in the prior art, the utility model provides a first technical problem be, provide a simple and compact structure, be convenient for with drawer locking unit integrated combined floodgate interlocking unit.

As the same technical conception, the utility model provides a second technical problem be, provide a simple structure is compact, be applicable to the propulsion combined floodgate interlocking device of little unit drawer.

The utility model provides a technical scheme that above-mentioned first technical problem adopted is: a switching-on interlocking unit for pushing a switching-on interlocking mechanism is mounted on a mounting substrate in the pushing switching-on interlocking mechanism and used for locking/unlocking a drawer locking unit in the pushing switching-on interlocking mechanism while a switch is switched on/off; the device is characterized in that the switching-on interlocking unit comprises an installation plate, a switching-on interlocking structure, a linkage plate and a locking plate;

the installation plate is installed on the installation base plate, the closing linkage structure is rotatably installed on the rear end face of the installation plate, and one end of the closing linkage structure is movably connected with the linkage plate and used for driving the linkage plate to move vertically or obliquely on the installation plate; the locking plate is transversely installed on the front end face of the installing plate in a sliding mode, and the upper extending portion of the locking plate is movably connected with the linkage plate and used for transversely moving under the driving of the linkage plate so as to lock or unlock the drawer locking unit.

Further, a first guide hole is formed in the upper extending portion of the locking plate, and the first guide hole comprises a first vertical hole portion and a first inclined hole portion which are communicated with each other; the mounting plate is provided with a second guide hole, and the second guide hole comprises a second vertical hole part and a second inclined hole part which are communicated with each other; the first vertical hole portion corresponds to the second vertical hole portion, and the second inclined hole portion has an inclination direction opposite to that of the first inclined hole portion;

and a connecting piece is arranged in the first guide hole in a sliding manner, and one end of the connecting piece penetrates through the second guide hole to be fixedly connected with the linkage plate so as to realize the movable connection of the locking plate and the linkage plate.

Furthermore, one end of the locking plate is provided with an inserting part which is matched with the drawer locking unit, and the other end of the locking plate is provided with an extending limiting part which vertically and downwards extends out of the mounting substrate;

the locking plate is provided with a transverse guide hole, the other connecting piece is arranged in the transverse guide hole in a sliding manner, and one end of the connecting piece is fixedly connected with the mounting plate;

the switching-on linkage structure comprises a cylindrical body rotatably mounted on the mounting plate, a mounting part extending radially outwards is arranged on the cylindrical body, a limiting column is arranged on the mounting part, a first long circular hole is formed in a bending part of the linkage plate, and the limiting column is matched with the first long circular hole so as to realize the movable connection of the switching-on linkage structure and the linkage plate;

the mounting plate is provided with an avoiding opening, the bottom of the mounting plate is provided with a bending fixing part, and the bending fixing part and the corresponding position of the mounting substrate are both provided with fixing mounting holes.

The utility model provides a technical scheme that above-mentioned second technical problem adopted is: a propulsion switching-on interlocking mechanism for a small unit drawer comprises a mounting substrate and a matching locking display trigger unit arranged below the mounting substrate; the mounting base plate is provided with a drawer locking unit, and in the drawer pushing process, the drawer locking unit realizes the locking or unlocking of the drawer in different position states under the coordination of the coordination locking display trigger unit; the mounting substrate is also provided with the closing interlocking unit.

Furthermore, a position display unit and a position auxiliary contact unit are also arranged on the mounting substrate; in the process of pushing the drawer, the position display unit displays different position states of the drawer under the matching of the matching locking display trigger unit, and the position auxiliary contact unit triggers auxiliary contacts corresponding to the different position states under the matching of the matching locking display trigger unit.

Furthermore, the drawer locking unit comprises a support frame fixed with the mounting substrate, a pushing assembly slidably mounted on the support frame along the push-pull direction, a locking assembly slidably mounted on the support frame along the vertical direction, and a guide rod fixedly connected with the locking assembly and extending out of the support frame, wherein a second oblong hole which is matched with the guide rod and extends vertically is formed in the support frame;

the pushing assembly is matched with the guide rod to enable the locking assembly to move vertically, and the drawer is locked or unlocked under the matching of the matching locking display trigger unit.

Further, the propulsion assembly includes a propulsion plate, an extended propulsion plate, and a first spring; the pushing plate comprises a first plate part, a second plate part and a connecting part which are sequentially connected, and a step surface is formed at the connecting part of the first plate part and the second plate part; the first spring is sleeved on the first plate part, one end of the first spring abuts against the step surface, and the other end of the first spring abuts against the support frame; the top of the second plate part is provided with a trapezoidal notch matched with the guide rod, and the second plate part is provided with a first end face or a positioning jack matched with the switching-on interlocking unit; a third oblong hole extending along the push-pull direction is formed in the second plate part, and a limit screw matched with the third oblong hole is arranged on the support frame; the connecting part is connected with the extension propelling plate, and the extension propelling plate extends out of the vertical plate part of the mounting base plate;

the locking assembly comprises a locking plate and a second spring which are stepped; the second spring is sleeved on the small-diameter end of the locking plate, one end of the second spring abuts against the step surface of the locking plate, and the other end of the second spring abuts against the supporting frame; the guide rod is vertically and fixedly connected with the large-diameter end of the locking plate, and the large-diameter end of the locking plate extends out of the transverse plate part of the mounting base plate and is used for being matched with the matching locking display trigger unit to realize the locking of the drawer;

when the pushing plate is pushed, the locking plate is forced to move upwards by the trapezoid notch so as to be separated from the matching of the matching locking display trigger unit, and the drawer is unlocked.

Further, the position display unit includes a position display panel, a rotation shaft, a rotation push plate, a collision pin, and a torsion spring;

the position display panel is slidably mounted on the mounting substrate, the rotating shaft is fixed on the mounting substrate, the rotating push plate is rotatably mounted on the mounting substrate by virtue of the rotating shaft, one end of the rotating push plate is movably connected with the position display panel and is used for driving the position display panel to transversely move on the mounting substrate, and the other end of the rotating push plate is provided with a collision pin; the torsion spring is sleeved on the rotating shaft, one torsion arm is fixedly connected with the mounting substrate, and the other torsion arm is fixedly connected with the collision pin; the mounting substrate is provided with an arc-shaped hole matched with the collision pin;

the mounting substrate is provided with a transverse limiting hole, the rotary push plate is provided with a fourth oblong hole, a connecting piece is arranged in the transverse limiting hole in a sliding mode, and one end of the connecting piece penetrates out of the fourth oblong hole to be fixedly connected with the position display plate, so that the rotary push plate is movably connected with the position display plate.

Furthermore, a protective cover for protecting the drawer locking unit and the position display unit is arranged on the mounting substrate, and two mounting cavities extending towards the direction of the mounting substrate are arranged in the protective cover; the position auxiliary contact unit comprises a second switch seat and a third switch seat which are arranged on the protective cover and are arranged at intervals along the push-pull direction, a test position auxiliary switch is arranged on the second switch seat, a connection position auxiliary switch is arranged on the third switch seat, and guide parts with openings facing the corresponding auxiliary contacts are arranged on the second switch seat and the third switch seat;

a trigger column is arranged in the mounting cavity in a sliding manner, a third spring is sleeved on the trigger column, one end of the third spring abuts against the step surface of the trigger column, and the other end of the third spring abuts against the bottom end of the guide part; the top end of the trigger column penetrates through the protective cover and extends into the guide part, and the bottom end of the trigger column extends out of the mounting substrate; and the top end of the trigger column is provided with a trigger inclined plane for triggering the auxiliary contact.

Further, the cooperation locking display triggering unit is fixedly arranged on the cabinet body frame below the drawer and comprises a pushing positioning block;

a slope surface, a first locking hole and a second locking hole are arranged on the pushing and pulling positioning block at intervals along the pushing and pulling direction; the first locking hole and the second locking hole are matched with the locking plate and used for realizing the locking or unlocking of the drawer in different position states;

the pushing positioning block is provided with a groove extending along the pushing and pulling direction, the bottom of the groove is provided with a trapezoidal bump, and the trapezoidal bump is used for enabling the triggering column to move up and down to trigger the corresponding auxiliary contact;

a first pushing inclined plane and a second pushing inclined plane are arranged at one side part of the pushing positioning block and are matched with the collision pin to display different position states;

the first locking hole corresponds to the first pushing inclined plane, the second locking hole corresponds to the second pushing inclined plane, and the trapezoidal lug corresponds to the second locking hole.

Due to the adoption of the technical scheme, the beneficial effects are as follows:

the utility model discloses a closing interlocking unit, which comprises a mounting plate, a closing linkage structure, a linkage plate and a locking plate; the switching-on linkage structure is rotatably arranged on the rear end surface of the mounting plate, and one end of the switching-on linkage structure is movably connected with the linkage plate and used for driving the linkage plate to vertically or obliquely move on the mounting plate; the locking plate is transversely installed on the front end face of the installation plate in a sliding mode, and the upper extending portion of the locking plate is movably connected with the linkage plate and used for transversely moving under the driving of the linkage plate so as to lock or unlock the drawer locking unit. The switching-on interlocking unit is simple and compact in structure, can be integrated in the same propulsion switching-on interlocking mechanism by means of the mounting substrate and the drawer locking unit, and is used for locking/unlocking the drawer locking unit in the propulsion switching-on interlocking mechanism while a switch is switched on/off.

The utility model discloses a propulsion switching-on interlocking mechanism for a small unit drawer, which comprises a drawer locking unit and a switching-on interlocking unit integrated on a mounting substrate, and a matching locking display triggering unit arranged below the mounting substrate; the propulsion switching-on interlocking mechanism is compact in structure and more suitable for small unit drawers. In addition, a position display unit and a position auxiliary contact unit are also arranged on the mounting substrate; in the drawer advancing process, the drawer locking unit realizes the accurate locking or unlocking of the drawer in different position states under the matching of the matching locking display triggering unit, the position display unit displays the different position states of the drawer under the matching of the matching locking display triggering unit, and the position auxiliary contact unit triggers auxiliary contacts (test and connection) corresponding to the different position states under the matching of the matching locking display triggering unit. After the propulsion switching-on interlocking mechanism is further optimized, the drawer can be accurately locked at different positions to realize corresponding testing, connecting and switching-on (manual or electric operation) functions, so that the integration degree is improved, the universality is increased, and the installation and debugging of matched equipment are facilitated. Moreover, the propulsion switching-on interlocking mechanism can be processed by adopting a metal material, and the structural strength is high.

Drawings

FIG. 1 is a schematic structural diagram of the closing interlock unit of the present invention

FIG. 2 is an exploded view of the structure of FIG. 1;

fig. 3 is a schematic structural view of a first embodiment of a propulsion switching-on interlocking mechanism for a small unit drawer according to the present invention;

FIG. 4 is an exploded view of the structure of FIG. 1;

fig. 5 is a reference view showing a state of engagement of the drawer locking unit, the position display unit and the position auxiliary contact unit with the engagement lock display triggering unit in fig. 4;

FIG. 6 is a schematic structural view of the drawer locking unit of FIG. 4;

FIG. 7 is a schematic view of the drawer lock unit of FIG. 4 from another perspective;

FIG. 8 is an exploded view of the structure of FIG. 6;

FIG. 9 is a schematic diagram of the structure of the position display unit in FIG. 4;

FIG. 10 is a partial cross-sectional view of FIG. 3;

fig. 11 is an exploded view of the position auxiliary contact unit of fig. 4;

FIG. 12 is a schematic structural diagram of the display triggering unit of FIG. 4;

in the figure, 1-mounting base plate, 11-transverse plate part, 111-fixed mounting hole, 112-arc hole, 113-locking plate avoiding hole, 114-transverse limiting hole, 115-locking plate avoiding hole, 12-vertical plate part, 121-transverse limiting hole, 122-pushing plate avoiding hole, 2-closing interlocking unit, 21-mounting plate, 211-second guide hole, 212-avoiding hole, 213-bending fixing part, 2131-fixed mounting hole, 214-threaded hole, 22-closing linkage structure, 221-cylindrical body, 222-mounting part, 223-limiting column, 23-linkage plate, 231-bending part, 232-first long circular hole, 233-threaded hole, 24-locking plate, 241-first guide hole, 242-inserting part, 243-extension limiting part, 244-transverse guide hole, 245-connecting screw, 25-connecting screw, 3-drawer locking unit, 31-support frame, 311-back plate, 3111-second oblong hole, 3112-limiting screw, 312-top plate, 3121-first square hole, 313-bottom plate, 3131-second square hole, 3132-mounting hole, 314-side plate, 3141-third square hole, 315-side plate, 3151-fourth square hole, 32-pushing assembly, 321-pushing plate, 3211-first plate part, 3212-second plate part, 3213-connecting part, 3214-step surface, 3215-trapezoidal notch, 3216-first end surface, 3217-positioning insertion hole, 3218-third oblong hole, 322-extension pushing plate, 323-first spring, 33-locking member, 331-locking plate, 3311-step surface, 332-second spring, 34-guide bar, 4-position display unit, 41-position display plate, 411-fixing screw, 412-position signboard, 413-horizontal plate, 4131-screw hole, 414-vertical plate, 42-rotation shaft, 43-rotation push plate, 431-fourth oblong hole, 44-collision pin, 45-torsion spring, 46-connecting screw, 5-position auxiliary contact unit, 51-second switch holder, 511-guide, 52-third switch holder, 521-guide, 53-test position auxiliary switch, 531-auxiliary contact, 54-connection position auxiliary switch, 541-auxiliary contact, 55-trigger column, 551-step surface, 552-trigger inclined surface, 56-third spring, 6-cooperation locking display trigger unit, 61-pushing positioning block, 62-slope surface, 63-first locking hole, 64-second locking hole, 65-groove, 66-trapezoidal lug, 67-first pushing inclined surface, 68-second pushing inclined surface, 7-protective cover, 71-installation cavity, 72-first avoiding hole, 73-first avoiding opening and a-inclined surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the orientation or position relationship described in the present invention as "horizontal", vertical "," front "," back ", etc. is based on the orientation and position relationship in the installation and use state, and is only for the convenience of simplifying the description, and should not be construed as limiting the present invention.

The first embodiment is as follows:

the present embodiment discloses a closing interlock unit 2 for advancing a closing interlock mechanism.

As shown in fig. 1 to 3 in common, a closing interlock unit 2 is mounted on a mounting substrate 1 in an advancing closing interlock mechanism, and is used to lock/unlock a drawer locking unit 3 in the advancing closing interlock mechanism, or even secondarily lock a drawer, while a switch (breaker) is closing/opening. The closing interlocking unit 2 specifically comprises an installation plate 21, a closing interlocking structure 22, an interlocking plate 23 and a locking plate 24; the mounting plate 21 is provided with an avoiding opening 212 for avoiding the pushing plate 321 in the drawer locking unit 3, two ends of the bottom of the mounting plate 21 are respectively provided with a bending fixing part 213, and the corresponding positions of the bending fixing part 213 and the mounting substrate 1 are respectively provided with a fixing mounting hole 2131 and a fixing mounting hole 111 for mounting a fastener.

The closing linkage structure 22 is rotatably mounted on the rear end face of the mounting plate 21, and one end of the closing linkage structure is movably connected with the linkage plate 23 and used for driving the linkage plate 23 to move vertically or obliquely on the mounting plate 21; the locking plate 24 is transversely slidably mounted on the front end surface of the mounting plate 21, and an upper extension part of the locking plate 24 is movably connected with the linkage plate 23 and is used for transverse movement under the driving of the linkage plate 23 so as to lock or unlock the drawer locking unit 3.

In this embodiment, the upper extension portion of the locking plate 24 is provided with a first guide hole 241, and the first guide hole 241 includes a first vertical hole portion and a first oblique hole portion that are communicated with each other; a second guide hole 211 is formed in the mounting plate 21, and the second guide hole 211 comprises a second vertical hole part and a second inclined hole part which are communicated with each other; the first vertical hole part corresponds to the second vertical hole part, and the inclination direction of the second inclined hole part is opposite to that of the first inclined hole part; a connecting piece (a connecting screw 25 or a step rivet) is slidably installed in the first guide hole 241, and one end of the connecting piece penetrates through the second guide hole 211 to be fixedly connected with the linkage plate 23 (by means of a threaded hole 233 matched with the connecting screw 25 or a smooth hole matched with the step rivet) so as to realize the movable connection of the locking plate 24 and the linkage plate 23.

Wherein, one end of the locking plate 24 is provided with an inserting part 242 adapted to the drawer locking unit 2, and the other end is provided with an extending limiting part 243 vertically and downwardly extending out of the mounting substrate 1 by means of the locking plate avoiding hole 115. In order to ensure the reliability of the drawer locking, a limit screw may be disposed on the cabinet frame under the drawer, which cooperates with the extension limit portion 243 for secondary locking of the drawer.

Wherein, closing linkage structure 22 (with be used for realizing the circuit breaker (switch) of closing a floodgate and be connected, the setting of circuit breaker is that technical personnel in the field are familiar with, it is not repeated here) including rotating the cylindrical body 221 of installing on mounting panel 21, be equipped with radial outside installation department 222 that extends on the cylindrical body 221, be equipped with spacing post 223 on the installation department 222, linkage plate 23 bend and be equipped with first oblong hole 232 in the portion 231, spacing post 223 and the cooperation of first oblong hole 232, in order to realize closing linkage structure 22 and linkage plate 23's swing joint.

After the drawer locking unit 2 is used for locking the drawer, the closing linkage structure 22 is manually rotated to perform closing (the circuit breaker is closed, the circuit breaker and the closing linkage structure 22 have a mechanical connection relationship, the specific connection structure is well known to those skilled in the art and is not described herein), the linkage plate 23 makes vertical or oblique movement on the mounting plate 21 to drive the locking plate 24 to move transversely, the insertion part 242 of the locking plate 24 is inserted into the positioning insertion hole 3217 (shown in fig. 8) of the pushing plate 321 in the drawer locking unit 3 to lock the drawer locking unit 3; the extending limiting part 243 of the locking plate 24 extends out of the bottom of the drawer through the locking plate avoiding hole 115 and is matched with a limiting screw on the cabinet body frame to realize secondary locking of the drawer; before the drawer is unlocked, the closing linkage structure 22 is manually rotated to open the drawer, and the insertion part 242 is disengaged from the positioning insertion hole 3217. Namely, after the breaker is closed, the drawer locking unit 3 is positioned and locked, and the pushing plate 321 cannot be operated any more, namely, the drawer cannot be unlocked, so that misoperation is effectively prevented, and personal safety is ensured; before unlocking, the circuit breaker is disconnected after opening the brake, and meanwhile, the positioning and locking of the drawer locking unit 3 are released.

Example two:

the embodiment discloses a push-on and switch-off interlocking mechanism for a small unit drawer integrated with a switch-on interlocking unit 2. The following describes the other units except the closing interlock unit 2.

As shown in fig. 3 to 5, the push-and-close interlocking mechanism for a small unit drawer includes a fitting locking display trigger unit 6 in which a mounting substrate 1 is disposed below the mounting substrate 1; the mounting board 1 is provided with a drawer lock unit 3, a position display unit 4, and a position auxiliary contact unit 5 in addition to the closing interlock unit 2. The mounting base plate 1 is mounted inside the drawer and fixedly connected with the bottom of the drawer; the matching locking display trigger unit 6 is arranged on the cabinet body frame below the drawer; that is, the mounting substrate 1 and the units on the mounting substrate 1 are integrally movable members, and the display trigger unit 6 is a stationary member in cooperation with the drawer moving in the drawing direction. In the process of pushing the drawer, the drawer locking unit 3 realizes the locking or unlocking of the drawer in different position states under the matching of the matching locking display trigger unit 6. Meanwhile, the position display unit 4 displays different position states of the drawer in cooperation with the locking display triggering unit 6. At the same time, the position auxiliary contact unit 5 triggers the auxiliary contacts 531, 541 (shown in fig. 11) corresponding to different position states in cooperation with the cooperation lock display trigger unit 6; the closing interlocking unit 2 is used for closing/opening, and simultaneously locking/unlocking the drawer locking unit 3 in the advancing closing interlocking mechanism, and even can secondarily lock the drawer, and the closing interlocking unit 2 is connected with a circuit breaker for realizing closing, and the setting of the circuit breaker is well known by those skilled in the art and is not described herein.

In addition, a protective cover 7 for protecting the drawer locking unit 3 and the position display unit 4 is disposed on the mounting substrate 1, and two mounting cavities 71 (shown in fig. 10) extending toward the mounting substrate 1 are disposed inside the protective cover 7; the top is provided with a first avoidance hole 72, the front side is provided with a first avoidance port 73, and the rear side is provided with a second avoidance port (not shown in the figure by being blocked).

As shown in fig. 6 to 8, in the present embodiment, the drawer locking unit 3 includes a supporting frame 31 fixed to the mounting substrate 1, a pushing assembly 32 slidably mounted on the supporting frame 31 along a pushing and pulling direction (longitudinal direction), a locking assembly 33 slidably mounted on the supporting frame 31 along a vertical direction, and a guiding rod 34 fixedly connected to the locking assembly 33 and extending out of the supporting frame 31, and the supporting frame 31 is provided with a second elongated circular hole 3111 adapted to the guiding rod 34 and extending vertically.

The support frame 31 is located inside the protective cover 7, and has a specific implementation structure of a frame structure formed by connecting a back plate 311, a top plate 312, a bottom plate 313 and two

side plates

314 and 315, and the first oblong hole 3111 is arranged on the back plate 311; the bottom plate 313 is provided with a mounting hole 3132 for fixing to the mounting substrate 1.

The propulsion assembly 32 is embodied in a structure that the propulsion assembly 32 includes a propulsion plate 321, an extended propulsion plate 322, and a first spring 323; the pushing plate 321 includes a first plate portion 3211, a second plate portion 3212, and a connecting portion 3213 sequentially connected to each other (the end of the second plate portion 3212 is bent by 90 degrees to form the connecting portion 3213), and a third hole 3141 and a fourth hole 3151 (the third hole 3141 and the fourth hole 3151 correspond to the first avoiding opening 73 and the second avoiding opening of the protective cover 7, respectively) are respectively formed in the two

side plates

314, 315 of the supporting frame 31, respectively. A step surface 3214 is formed at the joint between the first plate portion 3211 and the second plate portion 3212; the first spring 323 is sleeved on the first plate portion 3211, and has one end abutting against the step surface 3214 and the other end abutting against the inner wall of the side plate 314 of the support frame 31; a trapezoidal notch 3215 adapted to the guide bar 34 is formed in the top of the second plate portion 3212, and a first end surface 3216 or a positioning insertion hole 3217 adapted to the closing interlock unit 2 is formed in the second plate portion 3212; a second oblong hole 3218 extending in the push-pull direction (longitudinal direction) is formed in the second plate portion 3212, and a limit screw 3112 adapted to the third oblong hole 3218 is formed in the back plate 311 of the support frame 31; the connecting portion 3213 is connected to the bent portion of the extension pushing plate 322 (by welding or by means of a fastener thread), and the extension pushing plate 322 extends out of the vertical plate portion 12 of the mounting substrate 1 through the pushing plate avoiding opening 122 on the vertical plate portion 12, even out of the drawer door, so as to facilitate operation and realize unlocking of the drawer; alternatively, the extending pushing plate 322 may be omitted, and the end of the second plate portion 3212 of the pushing plate 321 may be bent and extended out of the vertical plate portion 12, or even out of the drawer door.

The specific implementation structure of the locking assembly 33 is as follows: the locking assembly 33 includes a locking plate 331 and a second spring 332 in a stepped shape; the second spring 332 is sleeved on the small-diameter end of the locking plate 331, and one end of the second spring abuts against the step surface 3311 of the locking plate 331 and the other end abuts against the inner wall of the top plate 312 of the supporting frame 31; the top plate 312 of the supporting frame 31 is provided with a first square hole 3121 (and the first avoiding hole 72 of the protecting cover 7) adapted to the small diameter end of the corresponding locking plate 331, and the bottom plate 313 of the supporting frame 31 is provided with a second square hole 3131 adapted to the large diameter end of the locking plate 331. The guide bar 34 is vertically and fixedly connected to the large-diameter end of the locking plate 331, and the large-diameter end of the locking plate 331 extends out of the lateral plate 11 of the mounting substrate 1 through the locking plate avoiding hole 113 on the lateral plate 11 to be engaged with the engagement lock display triggering unit 6 (shown in fig. 5, the slope 62, the first locking hole 63, and the second locking hole 64).

When the push plate 321 is pushed, the trapezoidal notch 3215 forces the lock plate 331 to move upward away from the inclined surface a of the first plate portion 3211, disengaging from the engagement of the lock display trigger unit 6 (the first lock hole 63 and the second lock hole 64, shown in fig. 5), and unlocking of the drawer is achieved.

As collectively shown in fig. 4, 5 and 9, in the present embodiment, the position display unit 4 includes a position display plate 41, a rotary shaft 42, a rotary push plate 43, an impact pin 44 and a torsion spring 45; the position display board 41 is transversely installed on the installation base board 1 in a sliding mode, the rotating shaft 42 is fixed on the transverse board part 11 of the installation base board 1, the rotating push plate 43 is rotatably installed on the transverse board part 11 of the installation base board 1 through the rotating shaft 42, one end of the rotating push plate 43 is movably connected with one end of the horizontal board part 413 of the position display board 41 and used for driving the position display board 41 to integrally do transverse reciprocating linear motion on the installation base board 1, and the other end of the rotating push plate 43 is provided with a collision pin 44; the torsion spring 45 is sleeved on the rotating shaft 42, one torsion arm is fixedly connected with the transverse plate part 11 of the mounting substrate 1 (the fixation is realized by the jack on the transverse plate part 11), and the other torsion arm is fixedly connected with the collision pin 44 (the fixation is realized by the compression of a nut and a gasket); the lateral plate portion 11 of the mounting substrate 1 is provided with an arc-shaped hole 112 adapted to the collision pin 44; the collision pin 44 protrudes out of the lateral plate portion 11 of the mounting substrate 1 through the arc-shaped hole 112 to be engaged with the engagement locking display triggering unit 6 (the first pushing inclined surface 67 and the second pushing inclined surface 68), thereby realizing display of different position states.

The specific implementation structure of the rotary push plate 43 converting the rotation around the rotary shaft 42 into the transverse reciprocating linear motion of the position display plate 41 is as follows:

the horizontal plate portion 11 and the vertical plate portion 12 of the mounting board 1 are provided with horizontal

position restricting holes

114 and 121, respectively, and the vertical plate portion 414 of the position display plate 41 is provided with a fixing screw 411, and the fixing screw 411 slides in the horizontal position restricting hole 121. And a position signboard 412 (three signs: disconnection, test, connection) is provided on the vertical plate portion 414 of the position display panel 41. The rotary pushing plate 43 is provided with a fourth oblong hole 431, a connecting piece (a connecting screw 36 or a step rivet) is slidably installed in the transverse limiting hole 114, and one end of the connecting piece penetrates through the fourth oblong hole 431 and is fixedly connected with the position display plate 41 (in virtue of a threaded hole 4131 matched with the connecting screw 36 or an unthreaded hole matched with the step rivet) so as to realize the movable connection between the rotary pushing plate 43 and the position display plate 41, and the rotation of the rotary pushing plate 43 is converted into the transverse linear motion of the position display plate 41.

As shown in fig. 4, 5, 10 and 11, in this embodiment, the position auxiliary contact unit 5 includes a second switch base 51 and a third switch base 52 (the spacing positions of the two switch bases need to correspond to two locking positions of the drawer) which are arranged on the protective cover 7 (or on the mounting base 1) and are arranged at intervals along the push-pull direction (longitudinal direction), the second switch base 51 is provided with a test position auxiliary switch 53, the third switch base 52 is provided with a connection position auxiliary switch 54, and the second switch base 51 and the third switch base 52 are provided with guide portions 511 and 521 (cylindrical shape) having openings facing the corresponding auxiliary contacts 531 and 541; a stepped triggering column 55 (or a nut is screwed to generate a step surface 551) is slidably arranged in the mounting cavity 71 (communicated with the outside through a through hole in the protective cover 7) in the protective cover 7, a third spring 56 is sleeved on the triggering column 55, one end of the third spring 56 abuts against the step surface 551 of the triggering column 55, and the other end abuts against the bottom ends of the guide parts 511 and 521; the top end of the trigger column 55 extends into the guiding parts 511 and 521 through the protective cover 7, and the bottom end extends out of the transverse plate part 11 of the mounting substrate 1 to be matched with the matching locking display trigger unit 6 (shown in fig. 5, a trapezoidal bump 66 is arranged in the groove 65); the top end of the trigger post 45 is provided with a trigger slope 552 (chamfered surface) for triggering the auxiliary contacts 531, 541.

In the process of pushing the drawer, firstly, the trigger column 55 corresponding to the second switch base 51 touches the trapezoidal bump 66 to be forced to jack up, and after jacking up, the trigger inclined plane 552 extrudes the trigger auxiliary contact 531, and the test position auxiliary switch 53 is closed; the trigger post 55 corresponding to the third switch seat 52 is pushed forward to touch the trapezoidal bump 66, and is forced to jack up, after the jack-up, the trigger slope 552 presses the trigger auxiliary contact 541, the connection position auxiliary switch 53 is closed, at this time, the trigger post 55 corresponding to the second switch seat 51 descends due to the reset of the third spring 56, and the test position auxiliary switch 53 is opened.

As shown in fig. 12, in the present embodiment, the display triggering unit 6 is used to be fixedly mounted on the cabinet frame below the drawer; the push-pull type locking device mainly comprises a push-pull positioning block 61, wherein a slope 62, a first locking hole 63 and a second locking hole 64 are arranged on the push-pull positioning block 61 at intervals along the push-pull direction (longitudinal direction); the first locking hole 63 and the second locking hole 64 are matched with the locking plate 331 and used for realizing the locking or unlocking of the drawer in different position states; the pushing positioning block 61 is provided with a groove 65 extending along the pushing and pulling direction, the bottom of the groove 65 is provided with a trapezoidal bump 66, and the trapezoidal bump 66 is used for enabling the corresponding triggering column 55 to move up and down to trigger the corresponding auxiliary contacts 531 and 541; a first pushing inclined surface 67 and a second pushing inclined surface 68 are arranged at one side part of the pushing positioning block 61, and the first pushing inclined surface 67 and the second pushing inclined surface 68 are used for pushing the collision pin 44 to enable the rotary push plate 43 to rotate so as to enable the position display plate 41 to move transversely, so that the display of different position states is realized; the first locking hole 63 corresponds to the position of the first push slope 67, the second locking hole 64 corresponds to the position of the second push slope 68, and the trapezoidal protrusion 66 corresponds to the position of the second locking hole 64. To ensure the synchronism of the drawer locking unit 3, the position display unit 4 and the position auxiliary contact unit 5.

The trapezoidal bump 66 can be set to the following positions: when the locking plate 331 enters the first locking hole 63, the trigger post 55 corresponding to the second switch base 51 moves upward by touching the trapezoidal projection 66, triggering the auxiliary contact 531; when the locking plate 331 enters the second locking hole 64, the triggering post 55 corresponding to the third switch holder 52 moves upward by touching the trapezoidal protrusion 66, triggering the auxiliary contact 541.

The specific working principle is as follows:

1. when the drawer is pushed, the locking plate 331 in the drawer locking unit 3 moves upward (the second spring 332 is pressed) due to the inclined surface 62 of the pushing positioning block 61, and continues to be pushed to the position of the first locking hole 63, the second spring 332 sleeved on the locking plate 331 resets, the locking plate 331 moves downward due to the elastic force and falls into the first locking hole 63, and at the moment, the drawer is locked at the test position. Meanwhile, the trigger column 55 corresponding to the second switch base 51 of the position auxiliary contact unit 5 first touches the trapezoidal protrusion 66 of the pushing positioning block 61, and is forced to jack up, and after the jack-up, the trigger inclined plane 552 presses the trigger auxiliary contact 531, and at this time, the test position auxiliary switch 53 is closed. In addition, the collision pin 44 in the position display unit 4 firstly touches the first pushing inclined surface 67, and due to the collision guidance of the first pushing inclined surface 67, the collision pin 44 is forced to move in the arc-shaped hole 112 of the mounting substrate 1, and then the rotating push plate 43 is driven to rotate by taking the rotating shaft 42 as the center, and simultaneously the position display plate 41 is driven to move transversely, so that the test mark on the position signboard 412 can be observed.

After the drawer is locked at the position, the closing linkage structure 22 in the closing interlocking unit 2 is operated (closed), the linkage plate 23 is driven to move vertically or obliquely, and then the locking plate 24 is driven to move transversely, the inserting part 242 of the locking plate 24 is inserted into the positioning insertion hole 3217 on the pushing plate 321 in the drawer locking unit 3, so that the pushing plate 321 cannot be pushed to unlock the drawer in a closing state, and personal safety is ensured; at the moment, only the auxiliary circuit in the drawer is in a conducting state, namely the drawer is not completely pushed into the cabinet frame.

2. Before unlocking the drawer at the current position, the closing linkage structure 22 in the closing interlocking unit 2 is operated in a reverse direction (closing), the linkage plate 23 is driven to move vertically or obliquely, the locking plate 24 is driven to move transversely, and the insertion part 24 of the locking plate 24 is disengaged from the positioning insertion hole 3217 on the pushing plate 321. After the brake is switched off, the drawer can be continuously pushed; when the pushing plate 321 is pushed, the trapezoidal notch 3215 on the pushing plate 321 moves upward away from the inclined surface a of the first plate portion 3211 to disengage the first locking hole 63 of the locking display trigger unit 6, so as to unlock the drawer. Subsequently, the drawer is pushed, the locking plate 331 of the drawer locking unit 3 is further pushed to the position of the second locking hole 64, the second spring 332 sleeved on the locking plate 331 is reset, and the locking plate 331 is elastically moved downward to fall into the second locking hole 64, at which time the drawer is locked at the "connected" position. Meanwhile, the trigger column 55 corresponding to the third switch seat 52 in the position auxiliary contact unit 5 touches the trapezoidal protrusion 66 of the pushing positioning block 61, and is forced to jack up, and after the jack-up, the trigger slope 552 presses the trigger auxiliary contact 541, and at this time, the connection position auxiliary switch 54 is closed. In addition, the position display unit 4 touches the second pushing inclined plane 68 after the collision pin 44, and due to the collision guidance of the second pushing inclined plane 68, the collision pin 44 continues to move in the arc-shaped hole 112 on the mounting substrate 1, and further drives the rotary pushing plate 43 to continue to rotate by taking the rotating shaft 42 as the center, and simultaneously drives the position display plate 41 to perform lateral movement, so that the connection mark on the position signboard 412 can be observed.

After the drawer is locked at the position, the closing linkage structure 22 in the closing interlocking unit 2 is operated (closed), the linkage plate 23 is driven to move vertically or obliquely, and then the locking plate 524 is driven to move transversely, the inserting part 242 of the locking plate 24 is inserted into the positioning insertion hole 3217 on the pushing plate 321 in the drawer locking unit 3, and the pushing plate 321 cannot be pushed to unlock the drawer in a closing state, so that personal safety is ensured; at the moment, the auxiliary circuit and the strong circuit (main circuit) in the drawer are both in a conducting state, and the drawer is completely pushed into the cabinet body frame.

In conclusion, the closing interlocking unit of the utility model has compact structure and is convenient to be integrated with the drawer locking unit into a whole; the drawer locking unit can be locked while the switch is closed in the drawer locking state.

The pushing and switching interlocking mechanism integrated with the switching interlocking unit is compact in structure and more suitable for small unit drawers; and the drawer can be accurately locked at different positions so as to realize corresponding testing, connecting and closing functions, so that the integration degree is improved, the universality is increased, and the installation and debugging of matched equipment are facilitated. Moreover, the propulsion switching-on interlocking mechanism can be processed by adopting a metal material, and the structural strength is high.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A switching-on interlocking unit for pushing a switching-on interlocking mechanism is mounted on a mounting substrate in the pushing switching-on interlocking mechanism and used for locking/unlocking a drawer locking unit in the pushing switching-on interlocking mechanism while a switch is switched on/off; the device is characterized in that the switching-on interlocking unit comprises an installation plate, a switching-on interlocking structure, a linkage plate and a locking plate;

2. A closing interlock unit for advancing a closing interlock mechanism according to claim 1, wherein the locking plate is provided at an upper extension thereof with a first guide hole including a first vertical hole portion and a first slant hole portion communicating with each other; the mounting plate is provided with a second guide hole, and the second guide hole comprises a second vertical hole part and a second inclined hole part which are communicated with each other; the first vertical hole portion corresponds to the second vertical hole portion, and the second inclined hole portion has an inclination direction opposite to that of the first inclined hole portion;

3. A closing interlocking unit for pushing a closing interlocking mechanism according to claim 1, wherein one end of the locking plate is provided with an insertion part adapted to the drawer locking unit, and the other end of the locking plate is provided with an extension limiting part vertically extending downwards out of the mounting substrate;

4. A propulsion switching-on interlocking mechanism for a small unit drawer comprises a mounting substrate and a matching locking display trigger unit arranged below the mounting substrate, wherein a drawer locking unit is arranged on the mounting substrate; in the process of pushing the drawer, the drawer locking unit realizes the locking or unlocking of the drawer in different position states under the matching of the matching locking display trigger unit; characterized in that the mounting substrate is further provided with a closing interlock unit according to any one of claims 1 to 3.

5. The push-on closing interlock mechanism for a small unit drawer according to claim 4,

the mounting substrate is also provided with a position display unit and a position auxiliary contact unit; in the process of pushing the drawer, the position display unit displays different position states of the drawer under the matching of the matching locking display trigger unit, and the position auxiliary contact unit triggers auxiliary contacts corresponding to the different position states under the matching of the matching locking display trigger unit.

6. The pushing and closing interlocking mechanism for the small unit drawer as claimed in claim 5, wherein the drawer locking unit comprises a support frame fixed to the mounting substrate, a pushing assembly slidably mounted on the support frame in a pushing and pulling direction, a locking assembly slidably mounted on the support frame in a vertical direction, and a guide rod fixedly connected to the locking assembly and extending out of the support frame, wherein a second oblong hole adapted to the guide rod and extending vertically is formed in the support frame;

7. The small unit drawer push-on interlock mechanism according to claim 6 wherein the push assembly comprises a push plate, an extended push plate, and a first spring; the pushing plate comprises a first plate part, a second plate part and a connecting part which are sequentially connected, and a step surface is formed at the connecting part of the first plate part and the second plate part; the first spring is sleeved on the first plate part, one end of the first spring abuts against the step surface, and the other end of the first spring abuts against the support frame; the top of the second plate part is provided with a trapezoidal notch matched with the guide rod, and the second plate part is provided with a first end face or a positioning jack matched with the switching-on interlocking unit; a third oblong hole extending along the push-pull direction is formed in the second plate part, and a limit screw matched with the third oblong hole is arranged on the support frame; the connecting part is connected with the extension propelling plate, and the extension propelling plate extends out of the vertical plate part of the mounting base plate;

8. The push-close interlock mechanism for a small unit drawer according to claim 7, wherein the position display unit includes a position display plate, a rotation shaft, a rotation push plate, a collision pin, and a torsion spring;

9. The push-on interlocking mechanism for a small unit drawer according to claim 8, wherein the mounting substrate is provided with a protective cover for protecting the drawer locking unit and the position display unit, and two mounting cavities extending in a direction of the mounting substrate are formed in the protective cover; the position auxiliary contact unit comprises a second switch seat and a third switch seat which are arranged on the protective cover and are arranged at intervals along the push-pull direction, a test position auxiliary switch is arranged on the second switch seat, a connection position auxiliary switch is arranged on the third switch seat, and guide parts with openings facing the corresponding auxiliary contacts are arranged on the second switch seat and the third switch seat;

10. The push-closing interlocking mechanism for the small unit drawer according to claim 9, wherein the cooperative locking display triggering unit is configured to be fixedly installed on a cabinet frame below the drawer, and the cooperative locking display triggering unit includes a push positioning block;