CN110230164A - A kind of washing machine - Google Patents

Abstract

The invention discloses a washing machine, comprising a box body and a washing bucket rotatably arranged in the box body. During the washing process, the washing bucket contains washing water, and a wire dust filter and a drainage assembly are arranged on the washing bucket. The chip filter and the drainage assembly are fixed on the washing tub through a common connecting piece; the present invention connects and fixes the filter, the drainage assembly and the washing tub through a common connecting piece, so that one connecting piece can connect and fix three pieces. The prior art reduces the consumption of the connecting piece, simplifies the connection and fixing structure of the lint filter and the drain assembly, and can use the lint filter to cover and shield the connecting piece, so as to realize an integrated appearance without screws inside the washing tub.

Description

a washing machine

technical field

The invention relates to the field of household appliances, in particular to a washing machine provided with a non-porous washing tub.

Background technique

At present, a general washing machine includes an inner tub and an outer tub, and many small holes are arranged on the wall of the inner tub. When the washing machine is dehydrating, due to the centrifugal force of high-speed operation, the clothes are close to the tub wall, and the water in the clothes enters the outer tub through the small holes. The tub is discharged out of the washing machine to achieve the purpose of dehydration. Since the inner and outer tubs of the washing machine with this structure are connected, during the washing process, the water level of the outer tub is flush with the water level of the inner tub, but it does not work. In this way, not only a large amount of washing water is wasted, but also dirt and bacteria in the washing water are easily accumulated between the inner tub and the outer tub, and it is not easy to clean, resulting in secondary pollution of clothes.

In view of the above problems, in the early stage, we developed a washing machine with a non-porous washing tub. The so-called non-porous washing tub is essentially that the lower part of the inner tub of the washing machine has no holes. After water injection, when washing and rinsing, there is only water in the inner tub, and there is no water between the inner tub and the outer tub, so that the water in the washing machine can be fully utilized, and 40% less water is used when filling water than other washing machines. , It can also save detergent. In addition, because the water injection amount in the inner tub is reduced, the load of the washing machine is reduced to a certain extent, and it is also more power-saving. During dehydration, the inner tub rotates at a high speed, and the water detached from the clothes flows out of the inner tub along the inner tub upward through the dehydration drain hole at the upper end of the inner tub.

A drainage assembly needs to be arranged on the outer wall or inner wall of the inner tub, and the drainage assembly communicates with the dehydration drainage hole to guide the washing water out of the inner tub. In the prior art, a lint filter needs to be installed inside the inner tub, and the lint filter is generally It is connected and fixed on the inner wall of the inner tub through a connecting piece, and the drainage assembly is fixed on the inner wall or the outer wall of the inner tub through another connecting piece. There are many openings in the inner tub of the washing machine, the connection structure is complex and redundant, and the assembly task is large, which is not conducive to improving production efficiency.

In view of this, the present invention is proposed.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine, in which the filter, the drain assembly and the washing tub are connected and fixed through a common connecting piece, so that one connecting piece can connect and fix three pieces. Compared with the prior art, the amount of the connecting piece is reduced, the connection and fixing structure of the lint filter and the drainage assembly is simplified, and the lint filter can be used to cover and shield the connecting piece, so as to realize an integrated appearance without screws inside the washing tub.

In order to solve the above-mentioned technical problems, the basic conception of the technical scheme adopted in the present invention is:

A washing machine includes a box body and a washing bucket rotatably arranged in the box body. During the washing process, the washing bucket contains washing water, and a lint filter and a drainage assembly are arranged on the washing bucket. The lint filter , The drainage assembly is fixed on the washing tub through a common connecting piece.

In the above solution, the filter, the drain assembly and the washing tub are connected and fixed through a common connector, so that one connector can connect and fix three components, which reduces the amount of connectors and simplifies the lint compared to the prior art. The connection and fixing structure of the filter and the drainage assembly. The technical solution is suitable for the design of the non-porous washing tub, which simplifies the structural design of the washing tub.

Preferably, the lint filter is arranged on the inner wall of the washing tub, the drainage assembly is arranged on the inner wall or the outer wall of the washing tub corresponding to the lint filter, and the lint filter and the drainage assembly pass through The common connection is fastened to the washing tub.

Preferably, the drainage assembly is arranged on the outer wall of the washing tub, and the connecting piece passes through the drainage assembly, the washing tub and the lint filter to connect and fix the three;

In the above solution, the drainage assembly is arranged on the outer wall of the washing tub and does not occupy the accommodating space of the washing tub.

Preferably, the connecting piece is fixed to the lint filter from the outside of the washing tub through the drain assembly and the washing bucket in sequence, and the surface of the lint filter shields the connecting piece.

In the above solution, the connecting piece is penetrated from the outside of the washing tub to the inside, which is beneficial for the lint filter to cover the end of the connecting piece, forming an integrated appearance effect inside the washing tub, and the outer wall of the washing tub is invisible to the user. Therefore, the connection parts can be exposed without affecting the appearance quality of the washing machine.

Preferably, the drain assembly is provided with a first fitting portion, the lint filter is provided with a second fitting portion correspondingly, a mounting hole is provided on the wall of the washing tub, and the connecting piece is installed through The hole is fixedly assembled with the first assembly part and the second assembly part at the same time.

Preferably, the first assembly part is a connecting hole, the second assembly part is a fixed connection seat, the connecting piece includes a connecting body and a limiting body, and the limiting body and one end of the connecting body are fixedly connected or integrally formed, The connecting body is assembled on the fixed connecting seat through the connecting hole and the mounting hole, and the fixed body is limited on the connecting hole;

Preferably, the connecting piece is a screw, the first assembling part is a connecting hole, the second assembling part is a screw hole, the threaded connecting column of the screw passes through the connecting hole, and the mounting hole is fixedly assembled in the screw hole , the nut of the screw is limited to the connection hole.

Preferably, the drainage assembly is extended along the height direction of the washing tub, and a plurality of connecting seats are provided on both sides of the drainage assembly at an upper and lower interval respectively, each connecting seat is provided with a connecting hole respectively, and each connecting seat is provided with a corresponding connecting seat on the washing tub. The installation holes and the lint filter are respectively provided with fixed connection seats corresponding to the connection holes on the washing tub.

In the above solution, there are a plurality of connecting seats protruding on both sides of the drain assembly, and the connecting seats on each side are arranged at a certain distance from top to bottom, so that the drain assembly and the lint filter can be fastened to the washing tub. superior.

Preferably, each connecting seat is provided with a boss structure on the side facing the washing tub, the connecting holes on the drain assembly are set on the boss structure, and the pre-positioned sealing plug of each boss structure is fixed on the mounting hole on the washing tub.

In the above solution, a boss structure is provided on the connecting seat, which is beneficial to the installation of the drainage assembly. The boss structure on the drainage assembly is inserted into the washing tub to achieve the effect of pre-positioning, and then each connecting seat can be assembled. The connecting piece is convenient for the assembly process and helps to improve the work efficiency.

Preferably, a sealing device is provided between the connecting piece and the washing tub, and/or between the connecting piece and the drain assembly;

In the above solution, the provision of the sealing device prevents the washing water from leaking out of the washing tub and causing a safety accident.

Preferably, a first sealing device is provided between the drain assembly and the washing tub, which is used to seal the mounting hole on the washing tub to prevent the washing water from leaking out of the mounting hole on the washing tub, and the connecting piece is connected to the drain assembly. A second sealing device is arranged between the bases for sealing the connecting holes on the connecting base to prevent the washing water from leaking out of the connecting holes on the connecting base.

The arrangement of the first sealing device and the second sealing device can ensure the sealing effect of the washing tub and prevent the leakage of washing water.

Preferably, the first sealing device includes a sealing ring sleeved on the boss structure, the sealing ring is compressed and arranged between the edge of the installation hole on the washing tub and the connecting seat, the second sealing ring The sealing device includes a sealing ring sleeved on the connecting piece, and the sealing ring is compressed and arranged between the connecting piece and the connecting seat;

Preferably, the boss structure is provided with a positioning part, the sealing ring is limited on the positioning part, the positioning part is an annular groove arranged on the peripheral wall of the boss structure, and the sealing ring is sleeved on the annular groove Inside.

After adopting the above-mentioned technical scheme, the present invention has the following beneficial effects compared with the prior art:

1. The washing machine of the present invention includes a box body and a washing bucket rotatably arranged in the box body. During the washing process, the washing bucket contains washing water, and a wire dust filter and a drainage assembly are arranged on the washing bucket. The chip filter and the drainage assembly are fixed on the washing tub through a common connecting piece; the present invention connects and fixes the filter, the drainage assembly and the washing tub through a common connecting piece, and realizes that one connecting piece can connect and fix three pieces. The prior art reduces the consumption of the connecting piece, simplifies the connection and fixing structure of the lint filter and the drainage assembly, and the lint filter can be used to cover and shield the connecting piece, so as to realize an integrated appearance without screws inside the washing tub.

2. In the present invention, the drainage assembly extends along the height direction of the washing tub, and there are a plurality of connecting seats on both sides of the drain assembly, which are spaced up and down respectively. The installation holes and the lint filter are respectively provided with fixed connection seats corresponding to the connection holes on the washing tub. The upper two sides of the drainage assembly are respectively protruded with a plurality of connecting seats, and the connecting seats on each side are arranged at a certain distance from top to bottom in order, so that the drainage assembly and the lint filter can be fastened on the washing tub.

3. In the present invention, the side of each connecting seat facing the washing tub is provided with a boss structure, the connecting holes on the drain assembly are set on the boss structure, and the pre-positioned sealing plugs of each boss structure are fixed on the mounting holes on the washing tub. . A boss structure is arranged on the connecting seat, which is beneficial to the installation of the drainage assembly. The boss structure on the drainage assembly is inserted into the washing tub to achieve the effect of pre-positioning, and then each connecting seat can be equipped with connecting pieces, so as to facilitate the The assembly process is improved, which is beneficial to improve work efficiency.

4. In the present invention, a sealing device is arranged between the connecting piece and the washing tub, and/or between the connecting piece and the drain assembly; the setting of the sealing device prevents the washing water from leaking out of the washing tub and causing a safety accident. A first sealing device is arranged between the drain assembly and the washing tub, which is used to seal the mounting hole on the washing tub and prevent the washing water from leaking out of the mounting hole on the washing tub. A second sealing device is provided for sealing the connecting hole on the connecting seat to prevent the washing water from leaking out from the connecting hole on the connecting seat. Through the arrangement of the first sealing device and the second sealing device, the sealing effect of the washing tub can be ensured, and the leakage of washing water can be prevented.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Description of drawings

The accompanying drawings are used as a part of the present application to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort. In the attached image:

Fig. 1 is the sectional view of the washing machine of the present invention;

Fig. 2 is the enlarged view of A part in Fig. 1;

Fig. 3 is another perspective view of the washing machine of the present invention;

FIG. 4 is an enlarged view of part B in FIG. 3 .

In the figure: 1. Washing bucket; 2. Reducer; 3. Drainage assembly; 32. Connection seat; 321, First boss; 322, Second boss; 4. Drain pan; 5. Lint filter; 51. Screw hole; 6. Water outlet; 7. First sealing device; 8. Second sealing device; 9. Screw.

It should be noted that these drawings and written descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention , but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings, only for the purpose of It is convenient to describe the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. Ground connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to FIGS. 1-4, the present invention provides a washing machine, which includes a box body and a washing tub 1 rotatably arranged in the box body. During the washing process, the washing tub 1 contains washing water, and the washing tub 1 is provided with The lint filter 5 and the drain assembly 3 are fixed on the washing tub 1 through a common connector. The drain assembly 3 is arranged on the inner or outer wall of the washing tub 1 along the height direction of the washing tub 1. The top of the drain assembly 3 is located at the top of the washing tub 1, and the top of the washing tub 1 is provided with a water outlet. The water outlet Connected with the drain assembly 3 , the washing tub 1 rotates at a high speed in the dehydration stage of the washing machine, and the water detached from the clothes flows upwards through the water outlet at the top of the washing tub 1 along the inner wall of the washing tub 1 and flows out of the washing tub 1 . The washing machine further includes a water collecting tray 4 , the washing tub 1 is rotatably disposed on the water collecting tray 4 , and the water outlet 6 of the drain assembly 3 communicates with the water collecting tray 4 .

In the above solution, the filter 5, the drain assembly 3 and the washing tub 1 are connected and fixed through a common connector, so that one connector can connect and fix three components, which reduces the amount of connectors compared to the prior art and simplifies the The connection and fixing structure of the lint filter 5 and the drainage assembly 3 is completed. The technical solution is suitable for the design of the non-porous washing tub 1 and simplifies the structural design of the washing tub 1 .

Preferably, the lint filter 5 is arranged on the inner wall of the washing tub 1 , and the drain assembly 3 is arranged on the inner or outer wall of the washing tub 1 corresponding to the lint filter 5 , and the lint filters The drain 5 and the drain assembly 3 are fixed on the washing tub 1 through a common connector.

In one embodiment, the drainage assembly 3 is located on the inner wall of the washing tub 1, and the lint filter 5 is located on the drainage assembly 3, that is, the lint filter 5 and the drainage assembly are sequentially arranged from the inside of the washing tub 1 to the outside. 3. Washing tub 1, the three are connected and fixed by a common connector.

Preferably, the drainage assembly 3 is arranged on the outer wall of the washing tub 1, and the connecting piece passes through the drainage assembly 3, the washing tub 1 and the lint filter 5 to connect and fix the three;

In the above solution, the drainage assembly 3 is arranged on the outer wall of the washing tub 1 and does not occupy the accommodating space of the washing tub 1 .

Preferably, the connecting piece is fixed to the lint filter 5 from the outside of the washing tub 1 through the drain assembly 3 and the washing tub 1 in sequence, and the surface of the lint filter 5 shields the connecting piece.

In the above solution, the connecting piece is penetrating from the outside of the washing tub 1 to the inside, so that the lint filter 5 can shield the end of the connecting piece, forming an integrated appearance effect inside the washing tub 1, and the outer wall of the washing tub 1 It is a place where the user cannot see, so the connection parts can be exposed without affecting the appearance quality of the washing machine.

Preferably, the drain assembly 3 is provided with a first fitting portion, the lint filter 5 is provided with a corresponding second fitting portion, and the wall of the washing tub 1 is provided with mounting holes, and the connecting piece It is fixedly assembled with the first assembly part and the second assembly part through the installation hole at the same time.

Preferably, the first assembly part is a connecting hole, the second assembly part is a fixed connection seat 32, the connecting piece includes a connecting body and a limiting body, and the limiting body and one end of the connecting body are fixedly connected or integrally formed , the connecting body is assembled on the fixed connecting seat through the connecting hole and the mounting hole, and the fixed body is limited on the connecting hole;

Preferably, the connecting piece is a screw 9, the first fitting part is a connecting hole, the second fitting part is a screw hole 51, and the threaded connection column of the screw 9 is fixed and assembled through the connecting hole and the mounting hole On the screw hole 51, the nut of the screw 9 is limited to the connecting hole.

Preferably, the drainage assembly 3 is extended along the height direction of the washing tub 1 , and a plurality of connecting seats 32 are provided on both sides of the drain assembly 3 respectively at an upper and lower interval. Each connection seat 32 is provided with a mounting hole, and the lint filter 5 is respectively provided with a fixed connection seat (ie a fixed connection seat provided with screw holes 51 ) corresponding to each connection hole on the washing tub 1 .

In the above solution, a plurality of connecting seats 32 are protruded on both sides of the drainage assembly 3 respectively, and the connecting seats 32 on each side are arranged at a certain distance from top to bottom in sequence, which is beneficial to the drainage assembly 3 and the lint filter 5 Fastened to the washing tub 1. The structure of the drainage assembly 3 can be of different structures. For example, the drainage assembly 3 is a flat tube structure with a drainage channel inside. The flat tube structure is vertically arranged on the outer wall of the washing tub 1. Of course, the drainage assembly 3 can be a single A half-shell structure, the concave side of the half-shell structure is attached and fixed to the outer wall of the washing tub 1 together with the outer wall of the washing tub 1 to form a drainage channel.

Preferably, each connecting seat 32 is provided with a boss structure on the side facing the washing tub 1 , the connecting holes on the drain assembly 3 are set on the boss structure, and the pre-positioned sealing plugs of each boss structure are installed on the washing tub 1 . on the hole.

In the above solution, the connecting seat 32 is provided with a boss structure, which is beneficial to the installation of the drainage assembly 3. The boss structure on the drainage assembly 3 is inserted into the washing tub 1 to achieve the effect of pre-positioning, and then the assembler Each connecting seat 32 can be assembled with a connecting piece, which facilitates the assembly process and helps to improve work efficiency.

Preferably, a sealing device is provided between the connecting piece and the washing tub 1, and/or between the connecting piece and the drain assembly 3;

In the above solution, the provision of the sealing device prevents the washing water from leaking out of the washing tub 1 and causing a safety accident.

Preferably, a first sealing device 7 is provided between the drain assembly 3 and the washing tub 1 to seal the mounting hole on the washing tub 1 to prevent the washing water from leaking out of the mounting hole on the washing tub 1 . A second sealing device 8 is provided between the connection seats 32 on the drain assembly 3 for sealing the connection holes on the connection seat 32 to prevent the washing water from leaking out of the connection holes on the connection seat 32 .

The arrangement of the first sealing device 7 and the second sealing device 8 can ensure the sealing effect of the washing tub 1 and prevent the leakage of washing water.

Preferably, the first sealing device 7 includes a sealing ring sleeved on the boss structure, and the sealing ring is compressed and arranged between the edge of the installation hole on the washing tub 1 and the connecting seat 32, The second sealing device 8 includes a sealing ring sleeved on the connecting piece, and the sealing ring is compressed and arranged between the connecting piece (screw) and the connecting seat 32;

Preferably, the boss structure is provided with a positioning part, the sealing ring is limited on the positioning part, the positioning part is an annular groove arranged on the peripheral wall of the boss structure, and the sealing ring is sleeved on the annular groove Inside.

Preferably, the drainage assembly 3 is an arc-shaped structure that matches the surface of the outer wall of the washing tub 1, that is, the drainage assembly 3 has a convex structure along the width direction, so that it can fit on the outer wall of the washing tub 1, and the drainage assembly The connecting seat 32 on the 3 is also adapted to be an arc-shaped sheet-like structure, and the side of the sheet-like structure facing the washing tub 1 is provided with a first boss 321, The mounting holes are matched and are pre-positioned and inserted into the mounting holes on the washing tub, and the side of the sheet-like structure facing away from the washing tub 1 is protruded with a second boss 322, and the top end face of the second boss 322 is inclined The connecting hole on the connecting seat 32 penetrates the second boss 322, the top end surface of the second boss 322 is an inclined surface, and the inclined surface is a structure that slopes downward from the edge of the drain assembly 3 inwardly, so that the The inclined surface is perpendicular to the extending direction of the connecting hole on the second boss 322 . With this arrangement, after the screw 9 passes through the connecting hole, the peripheral side of the nut can all abut on the surface of the second boss 322, thereby improving the tightening effect.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, personnel can make some changes or modifications to equivalent examples of equivalent changes by using the above-mentioned technical content, but any content that does not depart from the technical solution of the present invention, according to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments in the technical essence still fall within the scope of the solution of the present invention.

Claims (10)

1. A washing machine, comprising a box body and a washing bucket rotatably arranged in the box body, the washing bucket described in the washing process holds washing water, it is characterized in that, the washing bucket is provided with a wire dust filter and a drainage assembly, so The lint filter and the drain assembly are fixed on the washing tub through a common connecting piece. 2 . The washing machine according to claim 1 , wherein the lint filter is arranged on the inner wall of the washing tub, and the drain assembly is arranged on the inner wall of the washing tub corresponding to the lint filter. 3 . Or on the outer wall, the lint filter and the drainage assembly are fixed on the washing tub through a common connector. 3. The washing machine according to claim 1 or 2, characterized in that, the drainage assembly is arranged on the outer wall of the washing tub, and the connecting piece passes through the drainage assembly, the washing tub, and the lint filter to remove the three parts. connected to a fixed connection; Preferably, the connecting piece is fixed to the lint filter from the outside of the washing tub through the drain assembly and the washing bucket in sequence, and the surface of the lint filter shields the connecting piece. 4. The washing machine according to any one of claims 1-3, wherein a first assembly part is provided on the drain assembly, a second assembly part is correspondingly provided on the lint filter, and the A mounting hole is set on the wall of the washing tub, and the connecting piece passes through the mounting hole and is fixedly assembled with the first assembly part and the second assembly part at the same time. 5 . The washing machine according to claim 4 , wherein the first assembling part is a connecting hole, the second assembling part is a fixed connecting seat, and the connecting piece comprises a connecting body and a limiting body, 6 . The limiting body is fixedly connected or integrally formed with one end of the connecting body, the connecting body is assembled on the fixed connecting seat through the connecting hole and the mounting hole, and the fixing body is limited on the connecting hole; Preferably, the connecting piece is a screw, the first assembling part is a connecting hole, the second assembling part is a screw hole, the threaded connecting column of the screw passes through the connecting hole, and the mounting hole is fixedly assembled in the screw hole , the nut of the screw is limited to the connection hole. 6. A washing machine according to claim 4 or 5, characterized in that, the drainage assembly is extended along the height direction of the washing tub, and a plurality of connection seats are provided on both sides of the drainage assembly at an upper and lower interval respectively, and each connection seat is provided with a plurality of connection seats. A connection hole is respectively provided on the washing tub, a mounting hole is provided on the washing tub corresponding to each connection seat, and a fixed connection seat is respectively provided on the lint filter corresponding to each connection hole on the washing tub. 7 . The washing machine according to claim 6 , wherein each connecting seat is provided with a boss structure on the side facing the washing tub, the connecting holes on the drain assembly are set on the boss structure, and each boss structure is pre-positioned. 8 . The sealing plug is fixed on the mounting hole on the washing tub. 8. The washing machine according to any one of claims 1-7, wherein a sealing device is provided between the connecting piece and the washing tub, and/or between the connecting piece and the drain assembly. 9 . The washing machine according to claim 8 , wherein a first sealing device is provided between the drain assembly and the washing tub to seal the mounting hole on the washing tub and prevent the washing water from being installed on the washing tub. 10 . There is a second sealing device between the connecting piece and the connecting seat on the drain assembly, which is used to seal the connecting hole on the connecting seat and prevent the washing water from leaking out of the connecting hole on the connecting seat. 10 . The washing machine according to claim 9 , wherein the first sealing device comprises a sealing ring sleeved on the boss structure, and the sealing ring is compressed and arranged on the washing tub. 11 . between the edge of the installation hole and the connecting seat, the second sealing device includes a sealing ring sleeved on the connecting piece, and the sealing ring is compressed and arranged between the connecting piece and the connecting seat; Preferably, the boss structure is provided with a positioning part, the sealing ring is limited on the positioning part, the positioning part is an annular groove arranged on the peripheral wall of the boss structure, and the sealing ring is sleeved on the annular groove Inside.