CN219197836U

CN219197836U - Screw auxiliary positioning device and household appliance with same

Info

Publication number: CN219197836U
Application number: CN202223346830.9U
Authority: CN
Inventors: 王进; 蒋建辉
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-16
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to a screw auxiliary positioning device, which comprises a first cylinder and a second cylinder with two open ends, wherein the second cylinder is positioned in the first cylinder, the outer diameter of the second cylinder is smaller than the inner diameter of the first cylinder, the inner diameter of the second cylinder is larger than the diameter of the head part of the screw, and the first cylinder and the second cylinder are connected through an elastic device. The utility model also relates to a household appliance, wherein the screw auxiliary positioning device is arranged between the first wall and the second wall, so that the screw is allowed to reach the screw mounting hole through the guide of the second cylinder. After the auxiliary screw positioning device is used, the screws are not only aligned with the mounting holes rapidly and accurately, but also prevented from falling into the mechanical device.

Description

Screw auxiliary positioning device and household appliance with same

[ field of technology ]

The utility model relates to a screw auxiliary positioning device, by means of which the screw can be accurately brought to a deeper installation position. The utility model also relates to a household appliance, in particular a laundry treatment machine, using the screw-assisted positioning device.

[ background Art ]

In some mechanical devices, due to the local special structure of the mechanical device, when assembling the screws, production line workers need to use a screw gun to drive the screws to penetrate through deeper intervals and then to reach the positions of the screw mounting holes. In the process, the screw is not easy to align with the screw mounting hole, the screw can fall into the device with high probability and is difficult to take out, so that the assembly efficiency of the production line is affected, and if the screw cannot be taken out, faults or abnormal sounds can be caused.

[ utility model ]

It is an object of the present utility model to provide a screw-assisted positioning device that avoids the above-mentioned disadvantages.

Embodiments of the present utility model include: a screw auxiliary positioning device comprises a first cylinder and a second cylinder with two open ends, wherein the second cylinder is positioned in the first cylinder, the outer diameter of the second cylinder is smaller than the inner diameter of the first cylinder, the inner diameter of the second cylinder is larger than the diameter of the head of the screw, the first cylinder and the second cylinder are connected through an elastic device, so that the first end part of the second cylinder protrudes relative to the corresponding first end part of the first cylinder in a natural state, and the first end part of the second cylinder can be flush with the first end part of the first cylinder when being axially pressed.

The preferred embodiment further comprises that the elastic means comprises a connecting portion comprising a first connecting end connected to the inner surface of the first cylinder, a second connecting end connected to the outer surface of the second cylinder, and an intermediate portion between the first connecting end and the second connecting end, wherein the cross-sectional dimension of the intermediate portion is smaller than the cross-sectional dimensions of the first connecting end and the second connecting end at both ends thereof, and the intermediate portion is deformable to allow the second cylinder to retract into the first cylinder.

Wherein optionally in the free state the second connection end is closer to the first end of the first cylinder or the first end of the second cylinder than the first connection end.

In some embodiments, the connection is integrally manufactured with the first cylinder and the second cylinder and is made of plastic.

The connecting parts can be designed to be distributed continuously along the circumferential direction to form a ring shape; or the connecting part is arranged into a plurality of independent structures which are distributed at intervals along the circumferential direction.

Preferably, the second end of the second cylinder is always located within or flush with the second end of the first cylinder.

The device is suitable for being arranged between a first wall and a second wall which are oppositely arranged, wherein a screw mounting hole is formed in the second wall, a screw extending hole is formed in the first wall, and the axial length of the first cylinder is smaller than or equal to the interval distance between the first wall and the second wall.

The outer diameter of the second cylinder is preferably smaller than the outer diameter of the screw insertion hole so that, after the device has been mounted in place, the first end of the second cylinder is ejected from the screw insertion hole with the interior of the second cylinder aligned with the screw mounting hole.

The above embodiments may be combined in any combination as the technical conditions allow.

The screw auxiliary positioning device of various embodiments of the present utility model may be applied to a mechanical device in which a screw needs to pass through a deeper installation gap to reach a screw installation hole. The operator can pre-load the auxiliary positioning device into the gap where the screw is to be installed and align the interior of the second cylinder with the screw mounting hole, and then pass the screw through the second cylinder to the screw hole. Thus, the screw is quickly and accurately aligned with the mounting hole, and the screw is prevented from falling into the mechanical device.

The object of the present utility model is also to improve a household appliance such that the drawbacks of the prior art are avoided.

A household appliance comprising a first part comprising a first wall and a second wall disposed opposite and spaced apart from each other, and a second part comprising a third wall, the second wall having a screw mounting hole therein, the first wall having a screw access hole therein corresponding to the position of the screw mounting hole, the screw auxiliary positioning device of the above various embodiments and possible combinations thereof being located between the first wall and the second wall, and a first end of the second cylinder protruding from the screw access hole to allow a screw to reach the screw mounting hole through the guidance of the second cylinder, and connecting the second wall and the third wall.

Household appliances may include, but are not limited to, laundry treatment machines, refrigerators, dishwashers, cookers, range hoods, cleaners, and the like.

As one embodiment, the household appliance is a laundry machine, the first component is a front panel of the laundry machine, and the second component is a cabinet.

Wherein the laundry treating machine comprises a washing machine, a clothes dryer, a washing and clothes dryer integrated machine, a clothes drying cabinet, and the like.

The free state described above refers to a state in which no external force is applied.

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a perspective view of a side panel and a front panel of a laundry treating machine;

FIG. 2 is a cross-sectional view of the screw installation site of FIG. 1, without the screw auxiliary positioning device installed;

FIG. 3 is a cross-sectional view of the screw mounting location of FIG. 1 with the screw auxiliary positioning device mounted in the side panel;

FIG. 4 is an axial view of the screw-assisted positioning device;

fig. 5 is a cross-sectional view of the screw-assisted positioning device of fig. 4 taken along line A-A.

[ detailed description ] of the utility model

As shown in fig. 1, the laundry machine 1 includes two side panels 2 facing left and right, and a front panel 3 fixedly attached to the side panels 2. Wherein the side panel 2 has a first turn-up 20 on the side thereof adjacent to the front panel 3. As can be seen from fig. 2, the back of the front panel 3 has a second flange 30 corresponding in position to the first flange 20. The fixing of the front panel 3 and the side panel 2 is achieved by fixedly connecting the first flange 20 and the second flange 30 by means of screws 4.

The front panel 3 has an outwardly projecting ridge 31 on its front surface, whereas the location where the mounting screw 4 is required is located exactly on the second flange 30 opposite the ridge 31. As shown in fig. 2, the ridge 31 is spaced further from the second flange 30 than even the length of the shank of the screw 4. Thus, when mounting the screw 4, it is necessary to pass the screw 4 through the screw insertion hole 32 in the ridge 31 to reach the screw mounting hole 33 located opposite thereto and located on the second flange 30, and to effect mounting.

In order to avoid the difficulties or drawbacks indicated in the background art, as shown in fig. 3, a screw auxiliary positioning device 10 is inserted between the ridge 31 of the front panel 3 and the second flange 30 before the screw 4 is mounted.

As shown in fig. 3 to 5, the screw auxiliary positioning device 10 includes a first cylinder 11 and a second cylinder 12 which are open at both ends. The second cylinder 12 has an inner diameter greater than the diameter of the head of the screw 4 so that the screw 4 can pass through it. The second cylinder 12 is located inside the first cylinder 11, and the outer diameter of the second cylinder 12 is smaller than the inner diameter of the first cylinder 11, the first cylinder 11 and the second cylinder 12 are connected by an elastic connection portion 13, so that the second cylinder 12 is axially movable with respect to the first cylinder 11. Specifically, the connecting portion 13 is such that the first end 121 of the second cylinder 12 protrudes with respect to the corresponding first end 111 of the first cylinder 11 in a natural state, and can be flush with the first end 111 of the first cylinder 11 when the first end 121 of the second cylinder 12 is axially pressed.

The connection portion 13 includes a first connection end 131 connected to the inner surface of the first cylinder 11, a second connection end 132 connected to the outer surface of the second cylinder 12, and an intermediate portion 133 between the first connection end 131 and the second connection end 132. In the free state, the second connection end 132 is closer to the first end 111 of the first cylinder or the first end 121 of the second cylinder than the first connection end 131. The intermediate portion 133 has a cross-sectional dimension smaller than that of the first and second connection ends 131 and 132 at both ends thereof, so that when the second cylinder 12 is axially pushed, the intermediate portion 133 is deformed to allow the second cylinder 12 to retract into the first cylinder 11.

The second end 122 of the second cylinder 12 is always located within the first cylinder 11 or flush with the second end 112 of the first cylinder.

The connecting portions 13 may be implemented to be continuously distributed in the circumferential direction, forming a ring shape; or as shown in fig. 4, the connecting portions 13 are provided in a plurality of structures independently spaced apart in the circumferential direction.

Preferably, the connecting portion 13 is integrally manufactured with the first cylinder 11 and the second cylinder 13, and is made of plastic. Thus, the component can be formed at one time without additional installation, so that the process is simple and the cost is low. And the connecting portion 13 formed of plastic can be elastically deformed relatively easily at the thinner intermediate portion 133.

As shown in fig. 2, the axial length of the first cylinder 11 of the screw-assisted positioning device 10 is slightly smaller than the spacing between the ridge 31 and the second flange 30. The outer diameter of the second cylinder 12 is smaller than the outer diameter of the screw insertion hole 32 on the ridge 31. Before installing the screw 4, the screw-assisted positioning device 10 is first pushed between the ridge 31 and the second flange 30. During pushing, the second cylinder 12 is pressed to retract into the first cylinder 11. After the screw auxiliary positioning device 10 continues to be pushed to the position of the second cylinder 12 corresponding to the screw insertion hole 32, the first end 121 of the second cylinder is ejected from the screw insertion hole 32, at which time the inside of the second cylinder 12 is aligned with the screw mounting hole 33. At this time, not only is the screw auxiliary positioning device 10 positioned by the overlap of the second cylinder 12 and the screw insertion hole 32, but also the screw 4 is allowed to reach the screw mounting hole 33 by the guide of the second cylinder 12 and connect the first flange 20 and the second flange 30.

In the above-described embodiment, the first component is embodied in particular as a front panel 3, the second component is embodied as a side panel 2, the first wall is embodied as a ridge 31, the second wall is embodied as a second flange 30, and the third wall is embodied as a first flange 20.

The various embodiments described above and shown in the figures are illustrative of the utility model only and not all of the utility model. Any modification of the present utility model by one of ordinary skill in the related art is within the scope of the basic technical idea of the present utility model.

Claims

1. The utility model provides a screw auxiliary positioning device which characterized in that: comprising a first cylinder (11) with two open ends and a second cylinder (12), wherein the second cylinder is located inside the first cylinder, the outer diameter of the second cylinder is smaller than the inner diameter of the first cylinder, the inner diameter of the second cylinder is larger than the diameter of the head of the screw (4), the first cylinder and the second cylinder are connected by elastic means, so that in a natural state a first end (121) of the second cylinder protrudes with respect to a corresponding first end (111) of the first cylinder and can be flush with the first end of the first cylinder when the first end of the second cylinder is axially pressed.

2. The screw-assisted positioning device according to claim 1, wherein: the elastic means comprise a connecting portion (13) comprising a first connecting end (131) connected to the inner surface of the first cylinder, a second connecting end (132) connected to the outer surface of the second cylinder, and an intermediate portion (133) between the first and second connecting ends, wherein the cross-sectional dimension of the intermediate portion is smaller than the cross-sectional dimensions of the first and second connecting ends at both ends thereof, the intermediate portion being deformable to allow the second cylinder to retract into the first cylinder.

3. The screw-assisted positioning device according to claim 2, wherein: in the free state, the second connection end (132) is closer to the first end (111) of the first cylinder or the first end (121) of the second cylinder than the first connection end (131).

4. The screw-assisted positioning device according to claim 2, wherein: the connecting portion is integrally manufactured with the first cylinder and the second cylinder, and is made of plastic.

5. The screw-assisted positioning device according to claim 2, wherein: the connecting parts are continuously distributed along the circumferential direction to form a ring shape; or the connecting part is arranged into a plurality of independent structures which are distributed at intervals along the circumferential direction.

6. The screw-assisted positioning device according to claim 1, wherein: the second end (122) of the second cylinder is always located within the first cylinder or flush with the second end (112) of the first cylinder.

7. The screw-assisted positioning device according to claim 1, wherein: the device is suitable for being arranged between a first wall and a second wall which are oppositely arranged, wherein a screw (4) mounting hole is formed in the second wall, a screw extending hole (32) is formed in the first wall, and the axial length of the first cylinder is smaller than or equal to the interval distance between the first wall and the second wall.

8. The screw-assisted positioning device according to claim 7, wherein: the second cylinder has an outer diameter smaller than the outer diameter of the screw insertion hole so that, after the device is in place, the first end of the second cylinder is ejected from the screw insertion hole with the interior of the second cylinder aligned with the screw mounting hole.

9. A household appliance comprising a first part and a second part, wherein the first part comprises a first wall and a second wall which are oppositely arranged and have a spacing distance, the second part comprises a third wall, the second wall is provided with a screw mounting hole (33), and the first wall is provided with a screw extending hole (32) corresponding to the position of the screw mounting hole, and the household appliance is characterized in that: the screw auxiliary positioning device (10) of any one of claims 1-8 being located between the first wall and the second wall, and a first end (121) of the second cylinder protruding from the screw insertion hole (32) allowing a screw (4) to reach the screw mounting hole (33) through the guiding of the second cylinder (12) and connecting the second wall and the third wall.

10. The household appliance of claim 9, wherein: the household appliance is a laundry treatment machine, the first component is a front panel (3) of the laundry treatment machine, and the second component is a side panel (2).