CN212430995U - Range hood impeller clamping device - Google Patents
Range hood impeller clamping device Download PDFInfo
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- CN212430995U CN212430995U CN202021178556.7U CN202021178556U CN212430995U CN 212430995 U CN212430995 U CN 212430995U CN 202021178556 U CN202021178556 U CN 202021178556U CN 212430995 U CN212430995 U CN 212430995U
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Abstract
A clamping device for an impeller of a range hood comprises a fixed seat for connecting a motor shaft and the impeller, wherein a through hole is formed in the center of a shaft head at the upper end of the fixed seat; the method is characterized in that: two clamping jaws are symmetrically hinged below the fixed seat, and clamping edges are symmetrically arranged on the corresponding sides of the two clamping jaws and used for clamping a motor shaft inserted between the two clamping jaws; a rotary sleeve is inserted into the limiting sleeve below the fixed seat, and a pair of arc-shaped bosses which gradually protrude inwards are respectively arranged at the upper end and the lower end of the inner wall of the rotary sleeve and are used for driving the two clamping jaws to be opened and closed along with the rotation of the rotary sleeve; and a torsion spring is arranged between the rotary sleeve and the limiting sleeve and used for realizing automatic reset of the rotary sleeve after rotation so as to restore the two clamping jaws to a closed state. The clamping device is simple in structure, convenient to install and disassemble, and capable of quickly fixing the impeller on the output shaft of the motor through the clamping device.
Description
Technical Field
The utility model relates to a domestic appliance field, in particular to range hood impeller dress clamps to be put.
Background
The range hood is widely used in household kitchens and is used for collecting oil smoke and smell generated in the cooking process of the kitchens. The conventional range hood collects the oil smoke through a filter screen made of metal mesh or perforated metal, etc. In recent years, a range hood that does not use a filter screen for the purpose of improving cleanability has attracted attention. Under the condition of not using a filter screen, a motor arranged in the volute drives the impeller to rotate so as to collect oil smoke.
The impeller is fixed on the motor output shaft through the clamping device, and the existing clamping device is complex in structure, complex in installation and inconvenient to disassemble and assemble.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a range hood impeller dress card device of simple structure, simple to operate, the dismouting of being convenient for is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a clamping device for an impeller of a range hood comprises a fixed seat for connecting a motor shaft and the impeller, wherein a through hole is formed in the center of a shaft head at the upper end of the fixed seat; two clamping jaws are symmetrically hinged below the fixed seat, and clamping edges are symmetrically arranged on the corresponding sides of the two clamping jaws and used for clamping a motor shaft inserted between the two clamping jaws; a rotary sleeve is inserted into the limiting sleeve below the fixed seat, and a pair of arc-shaped bosses which gradually protrude inwards are respectively arranged at the upper end and the lower end of the inner wall of the rotary sleeve and are used for driving the two clamping jaws to be opened and closed along with the rotation of the rotary sleeve;
and a torsion spring is arranged between the rotary sleeve and the limiting sleeve and used for realizing automatic reset of the rotary sleeve after rotation so as to restore the two clamping jaws to a closed state.
Preferably, the outer edge of the limiting sleeve is provided with a fixed handle, and the outer edge of the rotating sleeve is provided with an operating handle so as to control the rotating sleeve to rotate.
Preferably, the two claws are symmetrically provided with arc grooves at the upper ends of the corresponding sides thereof so as to facilitate the insertion of the motor shaft.
Preferably, the two clamping jaws are in a closed position under the action of the torsion spring in an initial state, and a pair of arc-shaped bosses positioned at the upper end of the inner wall of the rotary sleeve are clamped at the upper parts of the outer sides of the two clamping jaws respectively and used for clamping a motor shaft inserted between the two clamping jaws.
Preferably, when the rotating sleeve rotates in the counterclockwise direction, the pair of arc-shaped bosses at the upper end of the inner wall of the rotating sleeve gradually deviates from the upper parts of the outer sides of the two clamping jaws, and the pair of arc-shaped bosses at the lower end of the inner wall of the rotating sleeve gradually clamps the lower parts of the outer sides of the two clamping jaws, so that the clamping edges on the two clamping jaws are turned outwards and opened, and the motor shaft is released.
Preferably, an arc-shaped opening with a central angle of approximately 90 degrees is arranged on the outer edge of the limiting sleeve, and the operating handle is led out from the arc-shaped opening and clamped at one end in the arc-shaped opening and used for realizing initial limiting of the limiting sleeve.
Preferably, a lower end cover with a sealed bottom surface is connected to the lower surface of the fixed seat, and the lower end cover is sleeved outside the limiting sleeve and used for realizing axial limiting of the rotary sleeve; the upper end of the lower end cover is provided with an arc-shaped notch, and the fixed handle and the operating handle are respectively led out from the arc-shaped notch.
The utility model has the advantages that:
because two clamping jaws are symmetrically hinged below the fixed seat, clamping edges are symmetrically arranged at one corresponding sides of the two clamping jaws, and a motor shaft inserted between the two clamping jaws can be clamped through the clamping edges; a rotary sleeve is inserted into the limiting sleeve below the fixed seat, a pair of arc-shaped bosses which gradually protrude inwards are respectively arranged at the upper end and the lower end of the inner wall of the rotary sleeve, and the arc-shaped bosses can drive the two clamping jaws to realize opening and closing along with the rotation of the rotary sleeve; the automatic reset of the rotating sleeve after rotation can be realized through the torsion spring arranged between the rotating sleeve and the limiting sleeve, so that the two clamping jaws are restored to a closed state; therefore, the clamping device is simple in structure, convenient to install and disassemble, and capable of quickly fixing the impeller on the output shaft of the motor through the clamping device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a sectional view B-B of fig. 2.
Fig. 5 is a cross-sectional view C-C of fig. 2.
Fig. 6 is a perspective view of the present invention with the lower cover removed.
In the figure: fixing base 1, spindle nose 101, through-hole 102, cross draw-in groove 103, stop collar 104, arc opening 105, connecting hole 106, articulated seat 107, lower end cover 2, arc notch 201, operating handle 3, swivel mount 4, arc boss 401, fixed handle 5, jack catch 6, arc recess 601, trapezoidal card is along 602, torsional spring 7.
Detailed Description
As shown in fig. 1-6, the utility model relates to a range hood impeller clamping device, including a fixing base 1 that is used for connecting motor shaft and impeller, three connecting hole 106 has been equipped with along the circumferencial direction equipartition on fixing base 1 for rivet with the impeller. The upper end of the fixed seat 1 is provided with an integrated shaft head 101, and the center of the shaft head is provided with a through hole 102 which is in clearance fit with a motor shaft and is used for inserting the motor shaft; the upper end of the shaft head 101 is provided with a cross-shaped clamping groove 103 for connecting the motor shaft and the fixed seat 1 through a pin. Two hinged seats 107 which are connected with the fixed seat 1 into a whole are symmetrically arranged below the fixed seat 1, two clamping jaws 6 are symmetrically hinged between the two hinged seats 107 through pin shafts, and trapezoidal clamping edges 602 are symmetrically arranged in the middle of one corresponding side of the two clamping jaws 6 and used for clamping a motor shaft inserted between the two clamping jaws 6; the upper ends of the corresponding sides of the two claws 6 are symmetrically provided with arc-shaped grooves 601 so as to be convenient for inserting the motor shaft.
An integrated limiting sleeve 104 is arranged below the fixed seat 1, the rotating sleeve 4 is inserted into the limiting sleeve 104 through clearance fit, and a pair of arc-shaped bosses 401 which gradually protrude inwards are respectively arranged at the upper end and the lower end of the inner wall of the rotating sleeve 4 and are used for driving the two clamping jaws 6 to be opened and closed along with the rotation of the rotating sleeve 4; and a torsion spring 7 is arranged between the rotary sleeve 4 and the limiting sleeve 104 and is used for realizing automatic reset of the rotary sleeve 4 after rotation so as to restore the two claws 6 to a closed state. The torsion spring 7 is sleeved outside the rotary sleeve 4, one end of the torsion spring 7 is clamped at the lower end of the rotary sleeve 4, and the other end of the torsion spring is clamped in the fixed seat 1 through the opening on the limiting sleeve 104.
The two clamping jaws 6 are in a closed position under the action of the torsion spring 7 in an initial state, and at the moment, a pair of arc-shaped bosses 401 positioned at the upper end of the inner wall of the rotating sleeve 4 are respectively clamped at the upper parts of the outer sides of the two clamping jaws 6 and used for clamping a motor shaft inserted between the two clamping jaws 6.
When the rotating sleeve 4 rotates along the anticlockwise direction, the pair of arc-shaped bosses 401 at the upper end of the inner wall of the rotating sleeve 4 gradually deviate from the upper parts of the outer sides of the two clamping jaws 6, and the pair of arc-shaped bosses 401 at the lower end of the inner wall of the rotating sleeve 4 are gradually clamped to the lower parts of the outer sides of the two clamping jaws 6, so that the clamping edges on the two clamping jaws 6 are outwards turned and opened, and an inserted motor shaft is released.
An integrated fixed handle 5 is arranged at the outer edge of the limiting sleeve 104, and an operating handle 3 integrated with the rotary sleeve 4 is arranged at the outer edge of the rotary sleeve 4 so as to control the rotary sleeve 4 to rotate. An arc-shaped opening 105 with a central angle of approximately 90 degrees is arranged on the outer edge of the limiting sleeve 104, and the operating handle 3 is led out from the arc-shaped opening and clamped at one end in the arc-shaped opening 105 and used for realizing the initial limiting of the limiting sleeve 104.
A lower end cover 2 with a sealed bottom surface is connected below the fixed seat 1, and the lower end cover 2 is sleeved outside the limit sleeve 104 and riveted with the fixed seat 1 to realize axial limit of the rotary sleeve 4; an arc-shaped notch 201 is formed in the upper end of the lower end cover 2, and the fixed handle 5 and the operating handle 3 are led out from the arc-shaped notch 201 respectively.
When the clamping device is used, the clamping device is riveted and fixed with the impeller through the three connecting holes in the fixed seat 1. During installation, hold the impeller and pull operating handle 3 to 5 directions of fixed handle, operating handle 3 drives rotatory cover 4 rotatoryly, make a pair of arc boss 401 that is located 4 inner walls upper ends of rotatory cover skew two jack catch outside upper portions gradually, a pair of arc boss 401 that is located 4 inner walls lower extremes of rotatory cover blocks to two jack catch outside lower parts gradually, make the card edge on two jack catches open outward, overlap the through-hole that passes through spindle nose 101 center with fixing base 1 on the motor shaft this moment, make the round pin card of wearing on the motor shaft block in the draw-in groove, the motor shaft passes fixing base 1 and inserts trapezoidal card edge 602 by the arc recess of two jack catch upper ends, block in the annular recess of motor shaft lower extreme through trapezoidal card edge 602, alright with the motor shaft.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A clamping device for an impeller of a range hood comprises a fixed seat for connecting a motor shaft and the impeller, wherein a through hole is formed in the center of a shaft head at the upper end of the fixed seat, and a cross-shaped clamping groove is formed in the upper end of the shaft head and used for connecting the motor shaft and the fixed seat through a pin; the method is characterized in that: two clamping jaws are symmetrically hinged below the fixed seat, and clamping edges are symmetrically arranged on the corresponding sides of the two clamping jaws and used for clamping a motor shaft inserted between the two clamping jaws; a rotary sleeve is inserted into the limiting sleeve below the fixed seat, and a pair of arc-shaped bosses which gradually protrude inwards are respectively arranged at the upper end and the lower end of the inner wall of the rotary sleeve and are used for driving the two clamping jaws to be opened and closed along with the rotation of the rotary sleeve;
and a torsion spring is arranged between the rotary sleeve and the limiting sleeve and used for realizing automatic reset of the rotary sleeve after rotation so as to restore the two clamping jaws to a closed state.
2. The extractor hood impeller clamping device according to claim 1, characterized in that: the outer edge of the limiting sleeve is provided with a fixed handle, and the outer edge of the rotating sleeve is provided with an operating handle so as to control the rotating sleeve to rotate.
3. The extractor hood impeller clamping device according to claim 1, characterized in that: the upper ends of the corresponding sides of the two claws are symmetrically provided with arc-shaped grooves so as to be convenient for inserting a motor shaft.
4. The extractor hood impeller clamping device according to claim 1 or 3, characterized in that: the two clamping jaws are in a closed position under the action of the torsion spring in an initial state, and at the moment, a pair of arc-shaped bosses positioned at the upper end of the inner wall of the rotary sleeve are respectively clamped at the upper parts of the outer sides of the two clamping jaws and used for clamping a motor shaft inserted between the two clamping jaws.
5. The extractor hood impeller clamping device according to claim 4, characterized in that: when the rotary sleeve rotates along the anticlockwise direction, the pair of arc-shaped bosses at the upper end of the inner wall of the rotary sleeve gradually deviates from the upper parts of the outer sides of the two clamping jaws, and the pair of arc-shaped bosses at the lower end of the inner wall of the rotary sleeve gradually clamps the lower parts of the outer sides of the two clamping jaws, so that the clamping edges on the two clamping jaws are outwards turned and opened, and the motor shaft is released.
6. The extractor hood impeller clamping device according to claim 2, characterized in that: an arc opening with a central angle of approximately 90 degrees is arranged at the outer edge of the limiting sleeve, and the operating handle is led out from the arc opening and clamped at one end in the arc opening for realizing the initial limiting of the limiting sleeve.
7. The extractor hood impeller clamping device according to claim 6, characterized in that: a lower end cover with a sealed bottom surface is connected below the fixed seat, and the lower end cover is sleeved outside the limiting sleeve and used for realizing the axial limiting of the rotating sleeve; the upper end of the lower end cover is provided with an arc-shaped notch, and the fixed handle and the operating handle are respectively led out from the arc-shaped notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021178556.7U CN212430995U (en) | 2020-06-23 | 2020-06-23 | Range hood impeller clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021178556.7U CN212430995U (en) | 2020-06-23 | 2020-06-23 | Range hood impeller clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212430995U true CN212430995U (en) | 2021-01-29 |
Family
ID=74281066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021178556.7U Active CN212430995U (en) | 2020-06-23 | 2020-06-23 | Range hood impeller clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212430995U (en) |
-
2020
- 2020-06-23 CN CN202021178556.7U patent/CN212430995U/en active Active
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