CN215412047U

CN215412047U - Anti-clamping device and lifting range hood

Info

Publication number: CN215412047U
Application number: CN202121589462.3U
Authority: CN
Inventors: 林孝发; 林孝山; 黄文锋
Original assignee: Jomoo Kitchen and Bath Co Ltd
Current assignee: Jomoo Kitchen and Bath Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-01-04
Anticipated expiration: 2031-07-13

Abstract

An anti-pinch device and a lifting range hood are arranged on a lifting component and comprise an anti-pinch switch and an installation part, wherein the installation part is arranged on the lifting component, the anti-pinch switch is fixed on one side of the installation part and is connected with the lifting component, and the anti-pinch device also comprises a connecting piece, a limiting piece and at least one elastic piece; the limiting piece is positioned on one side of the mounting part, and the connecting piece is movably connected to the other side of the mounting part; the elastic piece is propped between the limiting piece and the mounting part so that a certain distance is reserved between the limiting piece and the anti-pinch switch or the limiting piece is contacted with the anti-pinch switch; the limiting piece is linked with the connecting piece so that when the lifting component moves and the connecting piece is clamped, the anti-pinch switch moves and opens relative to the limiting piece and controls the lifting component to stop or move reversely.

Description

Anti-clamping device and lifting range hood

Technical Field

The utility model relates to the field of range hoods, in particular to an anti-clamping device and a lifting range hood.

Background

The range hood with the lifting function is a common range hood at present, the lifting component slides downwards to be opened when the range hood with the lifting function works, and the lifting component slides upwards to be hidden in a cavity of the range hood when the range hood is closed. The lifting assembly has the effects of saving space, and simultaneously, the distance between the air inlet and the oil smoke source is closer, so that the oil smoke can be absorbed more conveniently.

The range hood with the lifting function in the prior art has the advantages that the lifting assembly is arranged in the upward sliding process, the hand of a user is carelessly arranged between the oil cup and the bottom of the range hood, or a child in a family places the hand between the oil cup and the bottom of the range hood due to curiosity in the upward sliding process of the lifting assembly, the lifting assembly cannot stop working or move reversely in time, the force of the movement direction of the lifting assembly is large, fingers are easily injured by clamping, and potential safety hazards exist.

Therefore, a lifting range hood with an anti-pinch function is provided, a safety travel switch is mounted on a lifting component, when hands or other objects prevent the lifting component from acting and pinching, the safety travel switch controls the lifting component to stop or lift upwards through a control panel, and by adopting the mode, the anti-pinch function is usually triggered under the condition that pinching occurs, so that the pinched hands or objects are injured.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to overcome the defects of the existing anti-clamping device, provides an anti-clamping device and a lifting range hood, and has the advantages of simple structure, safety and reliability.

The utility model adopts the following technical scheme:

an anti-pinch device is arranged on a lifting component and comprises an anti-pinch switch and an installation part, wherein the installation part is arranged on the lifting component; the limiting piece is positioned on one side of the mounting part, and the connecting piece is movably connected to the other side of the mounting part; the elastic piece is propped between the limiting piece and the mounting part so that a certain distance is reserved between the limiting piece and the anti-pinch switch or the limiting piece is contacted with the anti-pinch switch; the limiting piece is linked with the connecting piece so that when the lifting component moves and the connecting piece is clamped, the anti-pinch switch moves and is opened relative to the limiting piece and controls the lifting component to stop or move reversely.

The positioning column is slidably arranged in the mounting portion in a penetrating mode, one end of the positioning column is connected with the connecting piece, and the other end of the positioning column is fixedly connected with the limiting piece. Preferably, the positioning device comprises two elastic parts and two positioning columns, and the elastic parts are arranged on the corresponding positioning columns in a penetrating mode.

The anti-pinch switch is located above or below the limiting sheet. The anti-pinch switch is a mechanical limit switch or an induction limit switch.

The utility model provides a lift range hood, includes casing, lifting unit and oil cup, this lifting unit liftable set up in the casing its characterized in that: still include foretell anti-pinch device, this oil cup with the connecting piece is for dismantling the connection.

The connecting piece is provided with a clamping portion, the position of the oil cup corresponding to the clamping portion is provided with a clamping edge extending inwards, and the clamping edge can be buckled on the corresponding clamping portion. The installation department is the stationary blade, and this stationary blade is located lifting unit side bottom.

The lifting assembly comprises a driving piece and an oil smoke absorption frame, and the driving piece is fixed in the shell and connected with the oil smoke absorption frame to lift. The casing is equipped with the slide rail, the oil absorption cigarette frame corresponds and is equipped with the slider, and this slider makes oil absorption cigarette frame go up and down along the slide rail for sliding fit with the slide rail.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. in the utility model, an anti-pinch switch, a connecting piece, an elastic piece and a limiting piece are arranged on an installation part of a lifting component; the elastic piece opens and pushes up between spacing piece and installation department, and spacing piece and connecting piece linkage, when lifting unit removed and the connecting piece blocked, spacing piece was prevented from pressing from both sides the switch relatively and is removed and trigger and prevent that the switch control lifting unit stops or reverse movement, has the cushioning effect, can prevent effectively that the hand from being pressed from both sides and hindering, eliminating the potential safety hazard.

2. In the utility model, the limiting sheet is connected with the connecting piece through the positioning column, the positioning column is slidably arranged in the mounting part in a penetrating way, and the elastic piece is sleeved outside the positioning column, so the structure is simple, and the mounting is convenient.

3. In the utility model, the anti-pinch switch can adopt a mechanical limit switch or an inductive limit switch and the like, and the installation position of the limit sheet can be set according to the type of the anti-pinch switch, so that the anti-pinch requirements of different lifting components can be met.

4. According to the oil cup, the oil cup is detachably connected with the connecting piece, when the lifting assembly is lifted, if a hand extends between the oil cup and the shell, an anti-pinch function is triggered, the hand can be effectively prevented from being pinched and injured, and the oil cup is safe and reliable.

Drawings

FIG. 1 is an exploded view of the anti-pinch device;

FIG. 2 is a view showing the installation structure of the anti-pinch device;

FIG. 3 is a cross-sectional view of the anti-pinch device;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a structural view of a lifting range hood;

FIG. 6 is a side view of the lift assembly;

fig. 7 is a side view of fig. 5.

FIG. 8 is an enlarged view of a portion of FIG. 5;

FIG. 9 is a schematic diagram of an anti-pinch circuit;

wherein:

10. lifting unit, 11, installation department, 12, driving piece, 13, oil absorption cigarette frame, 14, control panel, 15, slide rail, 16, slider, 20, prevent pressing from both sides switch, 21, contact, 30, connecting piece, 31, joint portion, 40, elastic component, 50, spacing piece, 60, reference column, 70, casing, 80, oil cup, 81, card limit.

Detailed Description

The utility model is further described below by means of specific embodiments.

The terms "first", "second", and the like in the present invention are merely for convenience of description to distinguish different constituent elements having the same name, and do not denote a sequential or primary-secondary relationship.

In the description of the present invention, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", and "rear", etc. are used as the directions or positional relationships indicated on the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention.

Referring to fig. 1 to 4, an anti-pinch device is disposed on an installation portion 11 of a lifting assembly 10, and includes an anti-pinch switch 20, a connecting member 30, an elastic member 40, a limiting piece 50, and the like. The lifting assembly 10, which can be controlled to be raised or lowered, is provided with a mounting portion 11. Should prevent that clamp switch 20 is fixed in installation department 11 one side and is connected with lifting unit 10, prevent being electric connection between clamp switch 20 and the lifting unit 10.

The position and number of the mounting portions 11 may be set according to the mounting direction of the lifting unit 10, and the mounting portions 11 may be provided at positions where the lifting unit 10 moves in the lifting direction and the hand is likely to be pinched, for example, at the left side, right side, front side, or rear side of the lifting unit 10. The mounting portion 11 may be a portion of the lifting assembly 10 itself, or may be an additional structure, such as a groove or a plate.

Connecting piece 30 is located the installation department 11 opposite side, and connecting piece 30 and anti-pinch switch 20 are located the different sides of installation department 11 respectively, and the two can be distributed along the lift direction of lifting unit 10, for example, anti-pinch switch 20 can be located the top of installation department 11, and connecting piece 30 is located the below of installation department 11, or anti-pinch switch 20 is located the below of installation department 11, and connecting piece 30 is located the top of installation department 11. The connector 30 may be used to connect structures associated with the lift assembly 10.

The position limiting sheet 50 is located at one side of the installation part 11, that is, at one side of the anti-pinch switch 20, the position limiting sheet 50 is linked with the connecting piece 30, so that the position limiting sheet 50 and the connecting piece 30 can be relatively fixed, and the position limiting sheet 50 and the connecting piece 30 can be arranged into an integral structure or connected in a split manner. Preferably, the positioning member is configured to be connected in a split manner, and may include at least one positioning post 60, the positioning post 60 is slidably disposed through the mounting portion 11, one end of the positioning post passes through the connecting member 30, and the other end of the positioning post is fixedly connected to the limiting plate 50.

The positioning posts 60 can be bolts or screws, and the number of the positioning posts 60 can be set according to the size of the connecting piece 30 and the limiting piece 50, and can be one, two or three. The positioning column 60 and the limiting sheet 50 can be detachably and fixedly connected or non-detachably and fixedly connected, the connecting piece 30 and the positioning column 60 can also be detachably and fixedly connected or non-detachably and fixedly connected, and the detachable and fixed connection comprises thread fit or buckle fit and the like.

Further, the elastic member 40 is pressed between the position-limiting piece 50 and the mounting portion 11, so that a distance is formed between the position-limiting piece 50 and the anti-pinch switch 20 or the position-limiting piece is in contact with the anti-pinch switch 20. In a normal state, the position relationship between the position-limiting sheet 50 and the anti-pinch switch 20 can be set according to the type of the anti-pinch switch 20. The elastic element 40 can be a spring or a leaf spring, and preferably a spring, and the spring can be sleeved outside the positioning column 60. The number of the elastic members 40 is at least one, and it may be the same as or different from the number of the positioning pillars 60, and preferably the same.

In the present invention, the anti-pinch switch 20 may be a mechanical limit switch or an inductive limit switch, and may be disposed above or below the limit sheet 50. Taking the example that the anti-pinch switch 20 adopts a mechanical limit switch, the anti-pinch switch 20 is arranged above the limit sheet 50 and is provided with the contact 21, under the conventional state, the contact 21 is pressed by the limit sheet 50 to be in the normally closed state, and when the limit sheet 50 moves, the contact 21 acts, and the anti-pinch switch 20 is switched on. Or, for another travel switch, the anti-pinch switch 20 is disposed between the limiting piece 50 and the mounting portion 11, and in a normal state, the contact of the anti-pinch switch 20 has a certain distance with the limiting piece 50, and when the limiting piece 50 moves to contact with the contact, the anti-pinch switch 20 is turned on.

In the device of the present invention, for example, the anti-pinch switch 20 is disposed above the limiting plate 50, when the lifting assembly 10 is controlled to ascend, the anti-pinch switch 20 ascends along with the lifting assembly 10 during the ascending process, if the connecting member 30 or the linkage structure connected to the connecting member 30 is jammed, the limiting member moves downward relative to the anti-pinch switch 20, the anti-pinch switch 20 is triggered to be turned on, and a signal is sent to control the lifting assembly 10 to stop or move reversely. The reverse movement is opposite to the current movement direction of the lifting assembly 10, i.e. the current movement direction is ascending, and the reverse movement is descending.

Referring to fig. 5-8, the present invention further provides a lifting range hood, which includes a housing 70, a lifting assembly 10, an oil cup 80, etc. The lifting assembly 10 includes a driving member 12 and a smoke rack 13, wherein the driving member 12 is fixed in the housing 70 and connected to drive the smoke rack 13 to lift, i.e. drive the smoke rack 13 to lift into the housing 70 or to lower from inside the housing 70 to outside the housing 70. The driving member 12 may be a cylinder or a motor. Wherein, the inner wall of the shell 70 can be provided with a slide rail 15, the oil smoke absorbing frame 13 is correspondingly provided with a slide block 16, and the oil smoke absorbing frame 13 is ensured to be more reliable in lifting and moving through the slide block 16 and the slide rail 15 in sliding fit.

Furthermore, at least one mounting part 11 is arranged on the smoke absorbing frame 13 of the lifting assembly 10, and the anti-pinch device is arranged on each mounting part 11. Specifically, the mounting portion 11 may be a fixing piece, and the fixing pieces may be respectively disposed at the bottoms of the two side edges of the soot absorption frame 13, and the oil cup 80 may be mounted through the two fixing pieces.

Wherein, the oil cup 80 is detachably connected with the connecting piece 30. Specifically, the connecting member 30 is provided with the clamping portion 31, the oil cup 80 is correspondingly provided with the clamping edge 81 extending inwards, and the clamping edge 81 can be buckled on the corresponding clamping portion 31, so that the oil cup 80 can be conveniently disassembled and assembled.

Referring to fig. 9, the lifting assembly 10 of the lifting range hood of the present invention further includes a control panel 14, the operating state of the driving member 12 is controlled by the control panel 14, and the anti-pinch switch 20 is connected to the control panel 14. Under normal conditions, the limiting piece 50 is pressed against the contact 21 of the anti-pinch switch 20 and the connecting piece 30 is pressed against the bottom surface of the mounting part 11 due to the action of the elastic piece 40. The specific working principle is as follows:

when the control panel 14 starts the lifting range hood, the driving part 12 drives the smoke absorption frame 13 to stably descend along the slide rail 15, and when the smoke absorption frame falls to a set position, the action is stopped, and the smoke absorption frame 13 enters a working state, as shown in fig. 5. In the working state, when the range hood is closed, the oil smoke absorption frame 13 stops working, the driving part 12 drives the oil smoke absorption frame 13 to stably rise, and when the oil smoke absorption frame rises to a set position, the action is stopped.

Referring to fig. 7 and 8, in the ascending process of the oil smoke sucking frame 13, if a finger or other obstacle is placed between the housing 70 and the oil cup 80, when the oil cup 80 and the connecting piece 30 are clamped by the finger or the obstacle, the limiting piece 50 also stops ascending, the elastic piece 40 is compressed by the mounting part, and the anti-pinch switch 20 continues to ascend along with the oil smoke sucking frame 13, the contact 21 of the anti-pinch switch 20 is operated and connected to generate a signal to the control board 14, the control board 14 controls the driving piece 12 to operate reversely to drive the oil smoke sucking frame 13 to descend, or the control board 14 controls the driving piece 12 to operate stopped, and the oil smoke sucking frame 13 stops ascending, so that the anti-pinch function is realized.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims

1. An anti-pinch device is arranged on a lifting component and comprises an anti-pinch switch and an installation part, wherein the installation part is arranged on the lifting component; the limiting piece is positioned on one side of the mounting part, and the connecting piece is movably connected to the other side of the mounting part; the elastic piece is propped between the limiting piece and the mounting part so that a certain distance is reserved between the limiting piece and the anti-pinch switch or the limiting piece is contacted with the anti-pinch switch; the limiting piece is linked with the connecting piece so that when the lifting component moves and the connecting piece is clamped, the anti-pinch switch moves and is opened relative to the limiting piece and controls the lifting component to stop or move reversely.

2. The anti-pinch device of claim 1, wherein: the positioning column is slidably arranged in the mounting portion in a penetrating mode, one end of the positioning column is connected with the connecting piece, and the other end of the positioning column is fixedly connected with the limiting piece.

3. The anti-pinch device of claim 2, wherein: the positioning device comprises two elastic pieces and two positioning columns, wherein the elastic pieces penetrate through the corresponding positioning columns.

4. The anti-pinch device of claim 1, wherein: the anti-pinch switch is located above or below the limiting sheet.

5. The anti-pinch device of claim 1, wherein: the anti-pinch switch is a mechanical limit switch or an induction limit switch.

6. The utility model provides a lift range hood, includes casing, lifting unit and oil cup, this lifting unit liftable set up in the casing its characterized in that: further comprising an anti-pinch device as claimed in any one of claims 1 to 5, the oil cup being removably connected to the connecting member.

7. The elevating range hood as set forth in claim 6, wherein: the connecting piece is provided with a clamping portion, the position of the oil cup corresponding to the clamping portion is provided with a clamping edge extending inwards, and the clamping edge can be buckled on the corresponding clamping portion.

8. The elevating range hood as set forth in claim 6, wherein: the installation department is the stationary blade, and this stationary blade is located lifting unit side bottom.

9. The elevating range hood as set forth in claim 6, wherein: the lifting assembly comprises a driving piece and an oil smoke absorption frame, and the driving piece is fixed in the shell and connected with the oil smoke absorption frame to lift.

10. The elevating range hood as set forth in claim 9, wherein: the casing is equipped with the slide rail, the oil absorption cigarette frame corresponds and is equipped with the slider, and this slider makes oil absorption cigarette frame go up and down along the slide rail for sliding fit with the slide rail.