CN112056801B

CN112056801B - Intelligent lifting cabinet

Info

Publication number: CN112056801B
Application number: CN202010977140.XA
Authority: CN
Inventors: 胡岗; 蔡志兰; 张志谦
Original assignee: Ningbo Polytechnic
Current assignee: Deyang Precision Manufacturing Technology (Wuxi) Co.,Ltd.
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-01-14
Anticipated expiration: 2040-09-17
Also published as: CN112056801A

Abstract

The invention provides a lifting cabinet, which comprises a fixed cabinet and a lifting cabinet, wherein overspeed limiting devices are arranged on the fixed cabinet and the lifting cabinet for quality inspection, each overspeed limiting device comprises a cutter bar vertically arranged on the fixed cabinet and a limiter fixed on the lifting cabinet and sleeved on a guide rod, and when the running speed of the lifting cabinet is greater than a preset value, the limiter locks the guide rod to brake the lifting cabinet; the intelligent lifting cabinet disclosed by the invention is compact in structure, high in stability and good in braking performance due to the pure mechanical structure design, and the overall safety of the intelligent lifting cabinet is improved.

Description

Intelligent lifting cabinet

Technical Field

The invention relates to a cabinet, in particular to an intelligent lifting cabinet.

Background

The cabinet is a platform for storing kitchenware and cooking operation in a kitchen, is matched with colors with higher lightness, and is an integral cabinet consisting of a cabinet body, a door plate, hardware, a table top, an electric appliance and five major parts, also called as an integral kitchen, and is a cabinet combination consisting of four parts of a cabinet, an electric appliance, a gas appliance and a kitchen functional appliance.

The kitchen cabinet is divided into an upper cabinet and a lower cabinet, the lower cabinet is placed on the bottom surface and is provided with a platform surface, the upper cabinet is fixed on the wall surface through expansion screws, and the lower cabinet is integrally hung above the lower cabinet.

Along with the improvement of living standard of people, the use of smart homes is more and more common, and the smart cabinets in the prior art also appear, the traditional smart cabinet is an upper cabinet and comprises a frame body, a lifting guide rail and a lifting frame body, wherein the lifting frame body is vertically matched on the frame body in a sliding manner through the lifting guide rail, the upper end of the frame body is provided with a lifting motor, the output end of the lifting motor is provided with a reel, a pull rope is wound on the reel, the head of the pull rope passes through a guide wheel and then is connected with the lifting frame body, the reel is driven to rotate by the lifting motor, so that the lifting frame body is driven to move through the pull rope, and the lifting is realized; because can place various bowls and chopsticks, condiment etc. in the lift cupboard, it needs great bearing capacity, because traditional intelligent cupboard passes through the stay cord fixed, when long-time use or bearing when too big, easily pine takes off between tensile tip and the lift framework junction, makes the lift framework drop to damage the inside article of placing, have certain potential safety hazard simultaneously

Disclosure of Invention

Technical problem to be solved

The invention aims to solve the technical problem of providing an intelligent lifting cabinet which can automatically lock when a lifting frame body falls off so as to avoid falling.

Technical scheme for solving problems

The invention provides an intelligent lifting cabinet, which comprises a fixed cabinet 11 and a lifting cabinet 12 which is arranged on the fixed cabinet in a sliding manner, wherein an overspeed limiting device is arranged between the fixed cabinet and the lifting cabinet.

Furthermore, the overspeed limiting device comprises a guide rod 5 vertically arranged on the fixed cabinet and a limiter fixed on the lifting cabinet and sleeved on the guide rod, wherein the limiter locks the guide rod to brake the lifting cabinet when the running speed of the lifting cabinet is greater than a preset value.

Furthermore, the limiter comprises a shell 4, and a locking device and a triggering device which are positioned in the shell 4, wherein the locking device comprises a sleeve 3 which is vertically fixed in the shell 4, the sleeve is provided with a guide hole for the guide rod to pass through, the side wall of the sleeve 3 is hinged with a rod body 6, the rotation axis of the rod body 6 is vertical to the axis of the guide hole, the lower end of the rod body is provided with a braking part 61 facing the guide rod, the side wall of the sleeve is provided with a window 30 for the braking part to pass through so that a braking surface on the braking part is in contact with the side wall of the guide rod and braking is realized, and the shell is internally provided with a first elastic component for enabling the rod body to rotate so that the braking part is in contact with the guide rod; the trigger device comprises a sliding sleeve 7, a driving wheel 8 and a trigger wheel 9, the sliding sleeve is arranged outside the sleeve in a sliding mode, the upper end of the sliding sleeve is in contact with the rod body 6, a gap is formed between the braking surface of the braking portion and the side wall of the guide rod, and a supporting component is arranged at the lower end of the sliding sleeve; the driving wheel 8 with the trigger wheel passes through main shaft 81 rigid connection, the lateral wall of driving wheel with the laminating of guide arm lateral wall just is in drive the driving wheel rotates when the guide arm slides, the sliding fit has trigger bar 92 in the trigger wheel, the slip direction perpendicular to of trigger bar the axis of trigger wheel, works as when the rotational speed of trigger wheel surpasss a definite value the head of trigger bar is thrown out outside the trigger wheel and is contacted and make it break away from with the support component of sliding sleeve lower extreme, the sliding sleeve lose holding power and with the body of rod breaks away from.

Further, the side wall of the guide bar 5 is provided with a flat surface and forms a friction surface 51 for contacting the braking surface.

Further, the body of rod is two and circumference equipartition at least.

Further, the side wall of the sleeve is provided with an annular protrusion and forms a support ring 32, the support ring is located at the lower end of the sliding sleeve, the support member 321 is hinged to the support ring, the axis of the support member is vertical and intersects with the axis of the sleeve, the upper end of the support member 321 is in contact with the upper support surface 70 at the lower end of the sliding sleeve, and the side wall of the support member 321 is provided with a horizontally arranged shift lever 322.

Further, an annular fixed seat 41 is fixed in the housing, the annular fixed seat 41 is located above the sliding sleeve, a pin shaft 74 is vertically arranged at the upper end of the sliding sleeve, a pin hole for allowing the pin shaft to pass through is formed in the annular fixed seat, and a second elastic component 73 for enabling the sliding sleeve to move downwards is arranged between the annular fixed seat and the sliding sleeve.

Furthermore, the lower end side wall of the rod body is provided with an inner supporting surface facing the guide rod, the upper end side wall of the sliding sleeve is provided with an outer supporting surface which is arranged outwards and is used for contacting with the inner supporting surface, and the inner supporting surface and the outer supporting surface are inclined planes.

Further, a clamping part is arranged at the lower end of the rod body, a first clamping surface which is arranged outwards and used for radial limiting is arranged on the side wall of the clamping part, the lower end of the clamping part is bent outwards in the radial direction to form a limiting part 62 used for axial limiting, and a limiting surface is arranged at the upper end of the limiting part; the upper end rigid connection of sliding sleeve have with the coaxial joint ring 73 of sliding sleeve, the joint ring is located the top of clamping part, the inner wall of joint ring be equipped with the second clamping face that first clamping face corresponds, work as the braking face with during the guide arm contact, the second clamping face laminating in first clamping face, just the lower extreme of joint ring with spacing face contact.

Furthermore, be connected through the inclined plane between the upper end of first chucking face and the body of rod lateral wall, the second chucking face with be connected through the inclined plane between the lower terminal surface of joint ring.

Further, the trigger wheel includes a circular disk body, a first hole 90 and a second hole 91 penetrate through the side wall of the circular disk body, the first hole, the second hole and the axis of the circular disk body are perpendicular to each other and intersect with each other, a trigger rod 92 and a third elastic member 95 enabling the trigger rod to have an inward movement trend are slidably arranged in the first hole, a stop pin 932 and a fourth elastic member 96 enabling the stop pin to have an inward movement trend and enabling the end of the stop pin to be in contact with the side wall of the trigger rod are slidably arranged in the second hole, when the centrifugal force of the trigger rod is larger than that of the third elastic member due to the rotating speed of the trigger wheel, the head of the trigger rod is thrown out of the circular disk body, and meanwhile, the stop pin slides inward under the thrust of the fourth elastic member and enables the tail end section surface of the trigger rod to face the side wall of the stop pin.

Further, the tail of the first hole body is provided with a first adjusting bolt 921, the end of the first adjusting bolt contacts with the end of the trigger rod, the tail of the second hole body is provided with a second adjusting bolt 931, and the fourth elastic component is located between the second adjusting bolt and the stop pin.

Further, a counterweight 94 is disposed at the end of the trigger rod.

Advantageous effects

According to the intelligent lifting cabinet, the overspeed limiting device is arranged between the fixed cabinet and the lifting cabinet, so that automatic locking and braking can be performed when a pull rope is broken or the lifting cabinet is overspeed, the lifting cabinet is prevented from falling to damage the body and articles in the lifting cabinet, and the use safety is improved; the overspeed limiting device is of a pure mechanical structure, does not have any electronic element, is triggered in a mechanical mode, and is good in stability and high in reliability; the plurality of braking parts are arranged, so that the contact area with the guide rod is large, the braking effect is good, and the braking distance is reduced; the anti-skid protrusions are arranged on the friction surface, so that the running synchronism of the driving wheel and the friction force of the braking part are improved; the inner supporting surface and the outer supporting surface are obliquely arranged, so that the supporting stability is improved, the inner supporting surface and the outer supporting surface have a downward movement trend, the sliding sleeve can smoothly move downwards after being triggered, and the operation reliability is improved; the clamping ring is arranged and used for locking the rod body after being triggered, so that the rod body is prevented from rotating outwards to influence braking force, and the braking reliability is improved; the trigger wheel is provided with a balancing weight, so that the gravity center of the trigger rod is eccentric, and the trigger rod can be triggered smoothly; the trigger wheel is provided with the through hole body and the adjusting bolt in a matched mode, so that the assembly is convenient, the production cost is reduced, and meanwhile, the elastic force of the internal elastic part is convenient to adjust, the rotating speed during the triggering is adjusted to adapt to different lifting cabinets and working conditions, and meanwhile, the elastic part and machining errors can be compensated; the special structural design of the supporting part has large supporting force and reliable supporting, and the horizontally arranged poking rod has long arm, so that the contact force to the supporting part during triggering is improved, smooth triggering is ensured, the triggering stability and reliability are improved, and the influence on normal triggering caused by insufficient triggering force is avoided; the intelligent lifting cabinet disclosed by the invention is compact in structure, high in stability and good in braking performance due to the pure mechanical structure design, and the overall safety of the intelligent lifting cabinet is improved.

Drawings

FIG. 1 is a schematic view of an intelligent lifting cabinet according to the present invention;

FIG. 2 is a schematic view of the overspeed limiting apparatus of an intelligent elevator cabinet of the present invention;

FIG. 3 is a schematic structural diagram of a triggering device of the intelligent lifting cabinet of the present invention;

FIG. 4 is a schematic structural diagram of a trigger wheel of the intelligent lifting cabinet of the present invention;

FIG. 5 is a schematic structural diagram of a trigger state of the trigger wheel of the intelligent lifting cabinet according to the present invention;

FIG. 6 is an enlarged view of a portion of the trigger wheel overspeed limiting apparatus of the intelligent lifting cabinet of the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is an enlarged view of portion B of FIG. 7;

fig. 9 is a schematic structural view illustrating a locking state of the intelligent lifting cabinet according to the present invention;

fig. 10 is a schematic structural view of a friction surface of the intelligent lifting cabinet of the present invention.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Referring to fig. 1 to 10, the present invention provides an intelligent lifting cabinet, which includes a fixed cabinet 11 and a lifting cabinet 12 slidably mounted on the fixed cabinet, and the invention of the present application is that an overspeed limiting device is disposed between the fixed cabinet and the lifting cabinet; the overspeed limiting device comprises a guide rod 5 vertically arranged on the fixed cabinet and a limiter fixed on the lifting cabinet and sleeved on the guide rod, wherein the limiter locks the guide rod to brake the lifting cabinet when the running speed of the lifting cabinet is greater than a preset value.

In detail, the limiter comprises a housing 4 fixed on the lifting cabinet, and a locking device and a triggering device are arranged in the housing 4.

Referring to fig. 2 and 3, the locking device includes a sleeve 3 vertically fixed in a housing 4, the sleeve is vertically fixed in the housing, in this embodiment, the sleeve is made of metal, a guide hole for a guide rod to pass through is formed on the sleeve, a rod body 6 is hinged on a side wall of the sleeve 3, a rotation axis of the rod body 6 is perpendicular to an axis of the guide hole, an upper end of the rod body is hinged on a side wall of the sleeve, a braking portion 61 facing the guide rod is formed at a lower end of the rod body, at least two rod bodies are uniformly distributed in the circumferential direction in this embodiment, a window 30 for the braking portion to pass through is formed on the side wall of the sleeve, a braking surface facing the guide rod is formed on the braking portion, the braking surface can completely adhere to a surface of the side wall of the guide rod, braking can be achieved when the braking surface adheres to and presses the surface of the guide rod, a first elastic member is provided in the housing, the first elastic member rotates the rod body and makes the braking portion contact with the guide rod, the first elastic component provides certain pressure, so that the braking surface is pressed against the surface of the guide rod, the friction force is increased, and a better braking effect is achieved; in order to further increase the frictional force, a flat surface is formed on the side wall of the guide rod 5 to form a frictional surface 51 for contact with the braking surface, the frictional surface facing the braking portion, and a non-slip protrusion 511 having a dot-like or laterally arranged strip-like structure is provided on the frictional surface, and a rubber layer is provided on the braking surface to increase the frictional force, and a non-slip protrusion is provided on the surface of the rubber layer.

Referring to fig. 3-7, the triggering device includes a sliding sleeve 7, a driving wheel 8 and a triggering wheel 9, the sliding sleeve is slidably fitted outside the sleeve, an annular fixed seat 41 is fixed in the housing, the annular fixed seat 41 is located above the sliding sleeve, vertically arranged pin shafts 74 are uniformly distributed in the circumferential direction of the upper end of the sliding sleeve, the annular fixed seat is provided with pin holes for the pin shafts to pass through, and a second elastic component 73 for making the sliding sleeve move downward is arranged between the annular fixed seat and the sliding sleeve; the upper end of the sliding sleeve is contacted with the rod body 6, a gap is formed between the braking surface of the braking part and the side wall of the guide rod, the gap is 0.5-3mm, and the lower end of the sliding sleeve is provided with a supporting part which is used for supporting the sliding sleeve, limiting the sliding sleeve and preventing the sliding sleeve from sliding downwards under the action of force; the driving wheel 8 is rigidly connected with the trigger wheel through a main shaft 81, the side wall of the driving wheel is attached to the side wall of the guide rod, the guide rod can be driven to rotate when sliding relatively, in order to improve the synchronism and avoid slipping, the driving wheel is also in contact with the braking surface, the driving wheel is positioned at the lower end of the sliding sleeve, the axis of the driving wheel is vertical to the axis of the guide rod, a trigger rod 92 is arranged in the trigger wheel in a sliding way, the sliding direction of the trigger rod is vertical to the axis of the trigger wheel, when the rotating speed of the trigger wheel exceeds a certain value, the head of the trigger rod is thrown out of the trigger wheel and is in contact with and separated from a supporting part at the lower end of the sliding sleeve, the sliding sleeve loses supporting force and slides downwards and is separated from a rod body, so that the braking part is in contact with and is pressed against the side wall of the guide rod, and the aim of braking is achieved; in this embodiment, the trigger wheel includes a circular disk body, the circular disk body is coaxially arranged with the driving wheel, and the circular disk body and the driving wheel are rigidly connected, a first hole body 90 and a second hole body 91 penetrate through the side wall of the circular disk body, the axes of the first hole body, the second hole body and the circular disk body are perpendicular to each other and intersect, a trigger rod 92 and a third elastic component 95 enabling the trigger rod to have an inward movement trend are slidably arranged in the first hole body, a first adjusting bolt 921 is arranged at the tail part of the first hole body, and the end part of the first adjusting bolt is in contact with the end part of the trigger rod; a stop pin 932 is arranged in the second hole body in a sliding way, and a fourth elastic component 96 which enables the stop pin to have an inward movement trend is arranged in the second hole body, the end part of the stop pin is contacted with the side wall of the trigger rod, a second adjusting bolt 931 is arranged at the tail part of the second hole body, the fourth elastic component is arranged between the second adjusting bolt and the stop pin, the fourth elastic component can push the stop pin to press the side wall of the trigger rod tightly, and a certain pressure is generated on the trigger rod, the pressure is in direct proportion to the friction force when the trigger bar slides, when the rotating speed of the trigger wheel causes the sum of the centrifugal force of the trigger bar and the friction force to be larger than that of the third elastic component, the head of the trigger rod is thrown out of the circular disk body, and when the head of the trigger rod is thrown out (namely the whole body slides outwards), the stop pin slides inwards under the thrust of the fourth elastic component, so that the tail end section surface of the trigger rod faces the side wall of the stop pin and is positioned on the sliding path of the trigger rod, and the reset of the trigger rod can be avoided; in order to improve the centrifugal force and ensure smooth triggering, a balancing weight 94 is arranged at the end part of the triggering rod; the rotating speed triggering can be adjusted through the second adjusting bolt and the balancing weight, and the threshold setting is realized by adjusting the pressing force and the weight of the configuration block, namely the triggering is realized at any rotating speed.

In the present embodiment, the side wall of the sleeve is provided with an annular protrusion and forms a support ring 32, the support ring is located at the lower end of the sliding sleeve, the support member is hinged at the upper end of the support ring, in the present embodiment, the support member is rod-shaped, the rotation axis of the support member is vertical and intersects with the axis of the sleeve, the upper end of the support member is in contact with the upper bearing surface 70 at the lower end of the sliding sleeve, the side wall of the support member is provided with a horizontally arranged shift lever 322, and the shift lever is located at the upper end of the support member; for the convenience of triggering, the end part of the supporting component is an arc-shaped surface, and simultaneously, for improving the supporting effect, the end part of the arc-shaped surface is provided with a lower supporting surface which is used for contacting with the upper supporting surface, and the area of the lower supporting surface is more than 1mm²And less than 50mm²。

In order to improve the sliding smoothness of the sliding sleeve, an inner supporting surface facing the guide rod is arranged on the side wall of the lower end of the rod body in the embodiment, an outer supporting surface which is arranged outwards and is used for being in contact with the inner supporting surface is arranged on the side wall of the upper end of the sliding sleeve, the inner supporting surface and the outer supporting surface are inclined planes, and the structure enables the rod body to drive the sliding sleeve downwards, so that the separation effect of the sliding sleeve is improved.

In order to improve the locking effect of the braking part, the lower end of the rod body is provided with a clamping part, the side wall of the clamping part is provided with a first clamping surface which is arranged outwards and used for radial limiting, the lower end of the clamping part is bent outwards in the radial direction to form a limiting part 62 used for axial limiting, and the upper end of the limiting part is provided with a limiting surface; the upper end of the sliding sleeve is rigidly connected with a clamping ring 72 coaxial with the sliding sleeve, the clamping ring is positioned above the clamping part, the inner wall of the clamping ring is provided with a second clamping surface corresponding to the first clamping surface, when the braking surface is contacted with the guide rod, the second clamping surface is attached to the first clamping surface, and the lower end of the clamping ring is contacted with the limiting surface, so that the clamping force and the stability of the clamping ring are improved; in order to guarantee smooth gliding and avoid collision, the upper end of the first clamping surface is connected with the side wall of the rod body through an inclined plane, and the second clamping surface is connected with the lower end surface of the clamping ring through an inclined plane.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an intelligence lift cupboard, includes the stationary cabinet and sliding fit the lift cabinet on the stationary cabinet which characterized in that: an overspeed limiting device is arranged between the fixed cabinet and the lifting cabinet; the overspeed limiting device comprises a guide rod vertically arranged on a fixed cabinet and a limiter fixed on the lifting cabinet and sleeved on the guide rod, wherein the limiter locks the guide rod to brake the lifting cabinet when the running speed of the lifting cabinet is greater than a preset value; the limiter comprises a shell, a locking device and a trigger device, wherein the locking device and the trigger device are positioned in the shell, the locking device comprises a sleeve which is vertically fixed in the shell, a guide hole for allowing the guide rod to pass through is formed in the sleeve, the side wall of the sleeve is hinged with a rod body, the rotating axis of the rod body is perpendicular to the axis of the guide hole, a braking portion facing the guide rod is arranged at the lower end of the rod body, a window for allowing the braking portion to pass through is formed in the side wall of the sleeve, so that a braking surface on the braking portion is in contact with the side wall of the guide rod, braking is realized, and a first elastic component for enabling the rod body to rotate to enable the braking portion to be in contact with the guide rod is arranged in the shell; the trigger device comprises a sliding sleeve, a driving wheel and a trigger wheel, the sliding sleeve is arranged outside the sleeve in a sliding mode, the upper end of the sliding sleeve is in contact with the rod body, a gap is formed between the braking surface of the braking portion and the side wall of the guide rod, and a supporting component is arranged at the lower end of the sliding sleeve; the driving wheel with the trigger wheel passes through main shaft rigid connection, the lateral wall of driving wheel with the laminating of guide arm lateral wall just is in drive the driving wheel rotates when the guide arm slides, the sliding fit has the trigger bar in the trigger wheel, the slip direction perpendicular to of trigger bar the axis of trigger wheel, work as when the rotational speed of trigger wheel surpasss a definite value the head of trigger bar is thrown away outside the trigger wheel and with the supporting component contact of sliding sleeve lower extreme and make it break away from, the sliding sleeve lose holding power and with the body of rod breaks away from.

2. The intelligent lift cabinet of claim 1, wherein: the side wall of the guide rod is provided with a plane and forms a friction surface for contacting with the braking surface.

3. The intelligent lift cabinet of claim 1, wherein: the body of rod is two and circumference equipartition at least.

4. The intelligent lift cabinet of claim 1, wherein: the lateral wall of the sleeve is provided with an annular bulge and forms a supporting ring, the supporting ring is positioned at the lower end of the sliding sleeve, the supporting component is hinged on the supporting ring, the axis of the supporting component is vertical and intersected with the axis of the sleeve, the upper end of the supporting component is contacted with the upper supporting surface at the lower end of the sliding sleeve, and the lateral wall of the supporting component is provided with a horizontally arranged deflector rod.

5. The intelligent lift cabinet of claim 1, wherein: the improved sliding sleeve structure is characterized in that an annular fixing seat is fixed in the shell and located above the sliding sleeve, a pin shaft is vertically arranged at the upper end of the sliding sleeve, a pin hole for the pin shaft to penetrate through is formed in the annular fixing seat, and a second elastic component for enabling the sliding sleeve to move downwards is arranged between the annular fixing seat and the sliding sleeve.

6. The intelligent lift cabinet of claim 1, wherein: the lower end lateral wall of the rod body is provided with an inner supporting surface facing the guide rod, the upper end lateral wall of the sliding sleeve is provided with an outer supporting surface which is arranged outwards and is used for contacting with the inner supporting surface, and the inner supporting surface and the outer supporting surface are inclined planes.

7. The intelligent lift cabinet of claim 1, wherein: the lower end of the rod body is provided with a clamping part, the side wall of the clamping part is provided with a first clamping surface which is arranged outwards and used for radial limiting, the lower end of the clamping part is bent outwards in the radial direction to form a limiting part used for axial limiting, and the upper end of the limiting part is provided with a limiting surface; the upper end rigid connection of sliding sleeve have with the coaxial joint ring of sliding sleeve, the joint ring is located the top of clamping part, the inner wall of joint ring be equipped with the second clamping face that first clamping face corresponds, work as the braking face with when the guide arm contact, the second clamping face laminating in first clamping face, just the lower extreme of joint ring with spacing face contact.

8. The intelligent lift cabinet of claim 7, wherein: the upper end of the first clamping surface is connected with the side wall of the rod body through an inclined plane, and the second clamping surface is connected with the lower end face of the clamping ring through an inclined plane.