CN211524431U - Drawer locking unit for push-pull type drawer - Google Patents
Drawer locking unit for push-pull type drawer Download PDFInfo
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- CN211524431U CN211524431U CN201922009647.1U CN201922009647U CN211524431U CN 211524431 U CN211524431 U CN 211524431U CN 201922009647 U CN201922009647 U CN 201922009647U CN 211524431 U CN211524431 U CN 211524431U
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Abstract
The utility model discloses a drawer locking unit for plug-type drawer for install on the mounting substrate in the drawer, realize the locking or the unblock of drawer with the cooperation of the propulsion locating piece of fixing on drawer below cabinet body frame. The device comprises a supporting frame fixed with a mounting substrate, a propelling component arranged on the supporting frame in a sliding manner along a push-pull direction, a locking component arranged on the supporting frame in a sliding manner along a vertical direction, and a guide rod fixedly connected with the locking component and extending out of the supporting 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 pushing positioning block. The drawer locking unit of the utility model has simple structure and convenient assembly; the precise locking of different position states can be realized by matching with the pushing positioning block; compared with the technical scheme of utilizing the pin shaft to realize drawer locking in the prior art, the positioning and locking are more accurate, and the operation is more stable, safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of electrical control, especially, relate to a drawer locking unit for plug-type drawer.
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 push interlocking mechanism used in the existing unit drawer is mainly of a hand-pulling type, the locking and unlocking of the mechanism are mainly realized through a pin shaft riveted on a steel sheet, and the unit drawer is large in collision force during pushing and pulling, and the riveted point of the pin shaft is easy to loosen, so that the whole unit drawer is locked and loses efficacy, the position of the drawer cannot be accurately positioned and locked, and safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects existing in the prior art, and the technical problem solved by the utility model is to provide a drawer locking unit which has simple structure, is convenient for assembly, runs stably and reliably and can perform accurate positioning and locking on the drawer under different positions.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: a drawer locking unit for a push-pull type drawer is used for being installed on an installation base plate in the drawer and matched with a pushing positioning block fixed on a cabinet body frame below the drawer to realize the locking or unlocking of the drawer; the drawer locking unit comprises a supporting frame fixed with the mounting substrate, a pushing assembly arranged on the supporting frame in a sliding mode along a push-pull direction, a locking assembly arranged on the supporting frame in a sliding mode along a vertical direction, and a guide rod fixedly connected with the locking assembly and extending out of the supporting 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 pushing positioning block.
Furthermore, be equipped with on the support frame with guide bar looks adaptation and the vertical first long circular port that extends.
Further, the propulsion assembly includes a 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 positioning jack or a first end face; the second plate part is provided with a second oblong hole extending along the push-pull direction, and the support frame is provided with a limit screw matched with the second oblong hole.
Further, the locking assembly includes a locking plate and a second spring that 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 mounting base plate and is used for being matched with the pushing positioning block to realize the locking of the drawer;
when the pushing plate is pushed, the trapezoidal notch forces the locking plate to move upwards to be separated from the matching of the pushing positioning block, and the drawer is unlocked.
Furthermore, the propulsion assembly further comprises an extension propulsion plate, the connecting part of the propulsion plate is connected with the extension propulsion plate, and the extension propulsion plate extends out of the mounting substrate.
Furthermore, the support frame is of a frame structure and comprises a back plate, a top plate, a bottom plate and two side plates;
the back plate is provided with a first oblong hole and a limiting screw, the top plate is provided with a first square hole matched with the small-diameter end of the locking plate, the bottom plate is provided with a mounting hole fixed with the mounting substrate and a second square hole matched with the large-diameter end of the locking plate, the side plate is provided with a third square hole matched with the first plate, and the other side plate is provided with a fourth square hole matched with the second plate.
Due to the adoption of the technical scheme, the beneficial effects are as follows:
the utility model discloses a drawer locking unit for install on the mounting substrate in the drawer, realize the locking or the unblock of drawer with the cooperation of the fixed propulsion locating piece on the cabinet body frame of drawer below. The device comprises a support frame fixed with a mounting substrate, a propelling component arranged on the support frame in a sliding manner along a push-pull direction, a locking component arranged on the support frame in a sliding manner along a vertical direction, and a guide rod fixedly connected with the locking component and extending out of 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 pushing positioning block.
The drawer locking unit of the utility model has simple structure and convenient assembly; the precise locking of different position states can be realized by matching with the pushing positioning block; compared with the technical scheme of utilizing the pin shaft to realize drawer locking in the prior art, the positioning and locking are more accurate, and the operation is more stable, safe and reliable.
Drawings
FIG. 1 is a schematic structural view of a drawer locking unit of the present invention;
FIG. 2 is a schematic view of the drawer locking unit of the present invention from another perspective;
FIG. 3 is an exploded view of the structure of FIG. 1;
FIG. 4 is a schematic structural view of the support stand of FIG. 3;
FIG. 5 is a schematic view of the pusher plate of FIG. 3;
FIG. 6 is a reference view of the drawer locking unit in cooperation with the push positioning block;
FIG. 7 is a reference diagram of a specific application of a drawer locking unit in a push-on closing interlock mechanism;
FIG. 8 is an exploded view of the structure of FIG. 7;
in the figures, 1-mounting base plate, 11-horizontal plate portion, 111-locking plate avoiding hole, 12-vertical plate portion, 121-pushing plate avoiding hole, 2-drawer locking unit, 21-supporting frame, 211-back plate, 2111-first oblong hole, 2112-limit screw, 212-top plate, 2121-first square hole, 213-bottom plate, 2131-second square hole, 2132-mounting hole, 214-side plate, 2141-third square hole, 215-side plate, 2151-fourth square hole, 22-pushing assembly, 221-pushing plate, 2211-first plate portion, 2212-second plate portion, 2213-connecting portion, 2214-step face, 2215-trapezoidal face, 2216-first notch, 2217-positioning insertion hole, 2218-second oblong hole, 222-extension push plate, 223-first spring, 23-locking assembly, 231-locking plate, 2311-step surface, 232-second spring, 24-guide bar, 3-position display unit, 4-position auxiliary contact unit, 5-manual closing interlocking unit, 51-plug part, 6-push positioning block, 61-body, 62-slope surface, 63-first locking hole, 64-second locking hole, 65-groove, 66-trapezoidal bump, 67-first push slope surface, 68-second push slope surface, 7-protective cover, a-slope 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 directions or the positional relationships described in the present invention, such as horizontal, vertical, front, and rear, are based on the directions and the positional relationships in the installation and use states, and are only for the convenience of simplifying the description, and should not be construed as limitations of the present invention.
As shown in fig. 1 to 6, the drawer locking unit 2 for a push-pull drawer disclosed in the present embodiment is mounted on a transverse plate 11 of a mounting substrate 1 in the drawer, and cooperates with a push positioning block 6 fixed on a cabinet frame below the drawer to lock or unlock the drawer. The drawer locking unit 2 comprises a support frame 21 fixed with the mounting base plate 1, a pushing assembly 22 installed on the support frame 21 in a sliding mode along the push-pull direction, a locking assembly 23 installed on the support frame 21 in a sliding mode along the vertical direction, and a guide rod 24 fixedly connected with the locking assembly 23 and extending out of the support frame 21; the pushing assembly 22 cooperates with the guiding rod 24 for vertically moving the locking assembly 23 and realizing the locking or unlocking of the drawer under the cooperation of the pushing positioning block 6.
The support frame 21 is a frame structure formed by connecting a back plate 211, a top plate 212, a bottom plate 213, and two side plates 214 and 215. The back plate 211 is provided with a first oblong hole 2111 which is matched with the guide rod 24 and extends vertically; the bottom plate 213 is provided with a mounting hole 2132 for fixing to the mounting substrate 1.
The propulsion assembly 22 is embodied in a structure that the propulsion assembly 22 comprises a propulsion plate 221, an extension propulsion plate 222 and a first spring 223; the pushing plate 221 includes a first plate portion 2211, a second plate portion 2212 and a connecting portion 2213 (the end portion of the second plate portion 2212 is bent by 90 degrees to form the connecting portion 2213), and a third hole 2141 and a fourth hole 2151 adapted to the first plate portion 2211 and the second plate portion 2212 are respectively disposed on the two side plates 214, 215 of the supporting frame 21 (the third hole 2141 and the fourth hole 2151 respectively correspond to the first avoiding opening 72 and the second avoiding opening of the protecting cover 7). A step surface 2214 is formed at the joint of the first plate portion 2211 and the second plate portion 2212; the first spring 223 is sleeved on the first plate portion 2211, and one end of the first spring is abutted against the step surface 2214, and the other end of the first spring is abutted against the inner wall of the side plate 214 of the support frame 21; the top of the second plate portion 2212 is provided with a trapezoidal notch 2215 adapted to the guide bar 24, and the second plate portion 2213 is provided with a first end face 2216 or a positioning insertion hole 2217 adapted to the closing interlocking unit 5; a second oblong hole 2218 extending in the push-pull direction (longitudinal direction) is formed in the second plate portion 2212, and a limit screw 2112 matched with the second oblong hole 2218 is formed in the back plate 211 of the support frame 21; the connecting portion 2213 is connected with the bending portion of the extension pushing plate 222 (by welding or by means of a fastener thread), and the extension pushing plate 222 extends out of the vertical plate portion 12 of the mounting substrate 1 through the pushing plate avoiding opening 121 on the vertical plate portion 12, even out of the drawer door, so that the operation is convenient, and the unlocking of the drawer is realized; alternatively, the extension pushing plate 222 may be omitted, and the end of the second plate portion 2212 of the pushing plate 221 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 23 is as follows: the locking assembly 23 includes a locking plate 231 and a second spring 232 which are stepped; the second spring 232 is sleeved on the small-diameter end of the locking plate 231, and one end of the second spring abuts against the step surface 2311 of the locking plate 231, and the other end of the second spring abuts against the inner wall of the top plate 212 of the support frame 21; the top plate 212 of the supporting frame 21 is provided with a first square hole 2121 (adapted to the first avoiding hole 71 of the protecting cover 7) adapted to the small diameter end of the corresponding locking plate 231, and the bottom plate 213 of the supporting frame 21 is provided with a second square hole 2131 adapted to the large diameter end of the locking plate 231. The guide rod 24 is vertically and fixedly connected to the large-diameter end of the locking plate 231, and the large-diameter end of the locking plate 231 extends out of the transverse plate 11 of the mounting substrate 1 through the locking plate avoiding hole 111 on the transverse plate 11 to be matched with the pushing positioning block 6 (as shown in fig. 6, the slope 62, the first locking hole 63, and the second locking hole 64) to lock the drawer.
When the pushing plate 221 is pushed, the trapezoid-shaped slot 2215 is away from the inclined surface a of the first plate portion 2211 to force the locking plate 231 to move upwards, so as to disengage from the pushing positioning block 6 (the first locking hole 63 and the second locking hole 64), and unlock the drawer.
In the push-on closing interlocking mechanism, the drawer locking unit 2 is usually required to be used in cooperation with other structural units, and the cooperation relationship between the drawer locking unit and other structural units is briefly described below.
As shown in fig. 7 and 8, the mounting substrate 1 is provided with a position display unit 3, a position auxiliary contact unit 4, and a manual closing interlock unit 5 in addition to the drawer lock unit 2; the mounting substrate 1 is provided with a protective cover 7 for protecting the drawer locking unit 2 and the position display unit 3. The mounting base plate 1 is mounted inside the drawer and fixedly connected with the bottom of the drawer, and the closing interlocking unit can be mounted at the bottom of the drawer or mounted on the mounting base plate 1; the pushing and positioning block 6 is arranged on the cabinet frame below the drawer; that is, the mounting substrate 1 and the units on the mounting substrate 1 are integrally movable members, and the pushing positioning block 6 is a stationary member as the drawer moves in the drawing direction. The pushing and positioning block 6 is fixedly arranged on the cabinet frame below the drawer; the locking device mainly comprises a body 61, wherein a slope 62, a first locking hole 63 and a second locking hole 64 are arranged on the body 61 at intervals along the push-pull direction (longitudinal direction); the first locking hole 63 and the second locking hole 64 are engaged with the locking plate 231 for achieving locking or unlocking of the drawer in different position states. The pushing and 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 one side of the pushing and positioning block 61 is provided with a first pushing inclined surface 67 and a second pushing inclined surface 68.
In the process of pushing the drawer, the drawer locking unit 2 realizes the locking or unlocking of the drawer in different position states under the matching of the pushing positioning block 6. Meanwhile, the position display unit 3 displays different position states of the drawer in cooperation with the push positioning block 6 (the first push slope 67 and the second push slope 68). At the same time, the position auxiliary contact unit 4 activates the auxiliary contacts corresponding to the different position states in cooperation with the push-in positioning block 6 (the trapezoidal projection 66). The synchronization of the drawer locking unit 2, the position display unit 3 and the position auxiliary contact unit 4 is ensured by means of a push-in positioning block 6. The manual closing interlock unit 5 is used for a switch (circuit breaker) to lock or unlock the drawer locking unit 2 and to secondarily lock or unlock the drawer while performing closing/opening. The manual closing interlocking unit 5 is connected to a circuit breaker for closing, and the arrangement of the circuit breaker is well known to those skilled in the art and will not be described herein.
The working principle of the drawer locking unit is briefly explained below:
1. when the drawer is pushed, the locking plate 231 in the drawer locking unit 2 moves upward (the second spring 232 is pressed) due to the inclined upward slope 62 of the pushing positioning block 6, and continues to push to the position of the first locking hole 63, the second spring 232 sleeved on the locking plate 231 resets, the locking plate 231 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. After the drawer is locked at the position, the inserting part 51 in the manual closing interlocking unit 5 (for linkage closing) is operated to be inserted into the positioning inserting hole 2217 on the pushing plate 221 in the drawer locking unit 2, so that the pushing plate 221 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 the drawer at the current position is unlocked, the manual closing interlocking unit 5 is operated in the reverse direction (linkage opening is performed), and the insertion part 51 is disengaged from the positioning insertion hole 2217 on the pushing plate 221. After the brake is switched off, the drawer can be continuously pushed; when the pushing plate 221 is pushed, the trapezoid notch 2215 on the pushing plate 221 is away from the inclined surface a of the first plate portion 2211 to force the locking plate 3 to move upwards, so as to disengage from the first locking hole 63 of the pushing positioning block 6, and thus unlocking of the drawer is realized. Subsequently, the drawer is pushed, the locking plate 231 of the drawer locking unit 2 is further pushed to the position of the second locking hole 64, the second spring 232 sleeved on the locking plate 231 is reset, and the locking plate 231 is moved downward by the elastic force to fall into the second locking hole 64, at this time, the drawer is locked at the "connection" position.
After the drawer is locked at the position, the manual closing interlocking unit 5 is operated (for linkage closing), and the insertion part 51 is inserted into the positioning insertion hole 2217 on the pushing plate 221 in the drawer locking unit 2, so that the pushing plate 221 cannot be pushed to unlock the drawer in a closing state, and 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 drawer locking unit of the utility model has simple structure and convenient assembly; the precise locking of different position states can be realized by matching with the pushing positioning block; compared with the technical scheme of utilizing the pin shaft to realize drawer locking in the prior art, the positioning and locking are more accurate, and the operation is more stable, safe and reliable.
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 (6)
1. A drawer locking unit for a push-pull type drawer is used for being installed on an installation base plate in the drawer and matched with a pushing positioning block fixed on a cabinet body frame below the drawer to realize the locking or unlocking of the drawer; the drawer locking unit is characterized by comprising a support frame fixed with the mounting substrate, a propelling component arranged on the support frame in a sliding manner along a push-pull direction, a locking component arranged on the support frame in a sliding manner along a vertical direction, and a guide rod fixedly connected with the locking component and extending out of 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 pushing positioning block.
2. A drawer locking unit for a push-pull drawer according to claim 1, wherein the support frame is provided with a first oblong hole adapted to the guide rod and extending vertically.
3. A drawer locking unit for a push-pull drawer according to claim 2 wherein the push assembly comprises a 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 positioning jack or a first end face; the second plate part is provided with a second oblong hole extending along the push-pull direction, and the support frame is provided with a limit screw matched with the second oblong hole.
4. A drawer locking unit for a push-pull drawer according to claim 3, wherein the locking assembly comprises a stepped locking plate and a second spring; 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 mounting base plate and is used for being matched with the pushing positioning block to realize the locking of the drawer;
when the pushing plate is pushed, the trapezoidal notch forces the locking plate to move upwards to be separated from the matching of the pushing positioning block, and the drawer is unlocked.
5. A drawer locking unit for a push-pull drawer according to claim 3, wherein the push assembly further comprises an extension push plate, the connecting portion of the push plate being connected to the extension push plate, the extension push plate extending beyond the mounting base plate.
6. A drawer locking unit for a push-pull drawer according to claim 4 wherein the support frame is a frame structure comprising a back plate, a top plate, a bottom plate and two side plates;
the back plate is provided with a first oblong hole and a limiting screw, the top plate is provided with a first square hole matched with the small-diameter end of the locking plate, the bottom plate is provided with a mounting hole fixed with the mounting substrate and a second square hole matched with the large-diameter end of the locking plate, the side plate is provided with a third square hole matched with the first plate, and the other side plate is provided with a fourth square hole matched with the second plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009647.1U CN211524431U (en) | 2019-11-18 | 2019-11-18 | Drawer locking unit for push-pull type drawer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009647.1U CN211524431U (en) | 2019-11-18 | 2019-11-18 | Drawer locking unit for push-pull type drawer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211524431U true CN211524431U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922009647.1U Active CN211524431U (en) | 2019-11-18 | 2019-11-18 | Drawer locking unit for push-pull type drawer |
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| Country | Link |
|---|---|
| CN (1) | CN211524431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267773A (en) * | 2020-10-21 | 2021-01-26 | 苏州浪潮智能科技有限公司 | Tool-free node unlocking mechanism |
-
2019
- 2019-11-18 CN CN201922009647.1U patent/CN211524431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267773A (en) * | 2020-10-21 | 2021-01-26 | 苏州浪潮智能科技有限公司 | Tool-free node unlocking mechanism |
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