CN217137660U - Frying and baking machine - Google Patents

Abstract

The utility model provides a fry in shallow oil roast machine, include: an upper baking tray assembly; a lower baking tray assembly; the hinge assembly is used for connecting the upper baking tray assembly with the lower baking tray assembly; and the lifting assembly is arranged on the upper baking tray assembly or the lower baking tray assembly and is arranged at intervals with the hinge assembly, the lifting assembly comprises a transmission piece and a gear piece, a plurality of gear grooves are formed in the gear piece, and the gear piece can be driven to rotate so that the transmission piece can move in the plurality of gear grooves to have a plurality of preset lifting heights, so that the gap between the upper baking tray assembly and the lower baking tray assembly can be adjusted and controlled.

Description

Frying and baking machine

Technical Field

The utility model relates to a small-size domestic appliance field especially relates to a machine of baking by frying in shallow oil.

Background

The frying and baking machine is a frying and baking device commonly used in life. The frying and roasting machine generally comprises an upper roasting tray assembly and a lower roasting tray assembly, a cooking space is formed between the upper roasting tray assembly and the lower roasting tray assembly, and the upper roasting tray assembly and the lower roasting tray assembly are rotatably connected through a hinge structure so that the upper roasting tray assembly can be unfolded and covered relative to the lower roasting tray assembly.

In order to change the cooking space of the frying and roasting machine, for example, to adapt to some food materials which can expand (puff) after being heated, a certain floating gap exists at the hinge structure between the upper and lower roasting trays of the existing frying and roasting machine to adapt to the expansion of the food materials.

But rely on the thickness variation tension of eating material self to jack up the mode of last overware subassembly, after tension disappears, go up overware subassembly again because the effect of gravity and compact and eat the material to reduce the taste of food.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a frying and baking machine to solve the problem that the gap between the upper tray assembly and the lower tray assembly is not controllable.

The utility model provides a fry in shallow oil roast machine, include: an upper baking tray assembly; a lower baking tray assembly; the hinge assembly is used for connecting the upper baking tray assembly with the lower baking tray assembly; and the lifting assembly is arranged on the upper baking tray assembly or the lower baking tray assembly and is arranged at intervals with the hinge assembly, the lifting assembly comprises a transmission piece and a gear piece, a plurality of gear grooves are formed in the gear piece, and the gear piece can be driven to rotate so that the transmission piece can move in the plurality of gear grooves to have a plurality of preset lifting heights.

So set up, through the cooperation between driving medium and a plurality of gear grooves to when gear is driven to rotate, the driving medium has different lifting height in the gear groove of difference, thereby can adjust the clearance between last overware subassembly and the lower overware subassembly in a controllable way, with the thickness of eating the material of clearance adaptation between the two that makes better.

In one embodiment, the transmission member is provided with a protrusion which is matched with the gear groove, and the protrusion is movably lapped on the wall of the gear groove.

So set up, protruding mobilizable overlap joint is on the wall of gear groove, when the gear piece rotates, can slide between the gear groove of difference, and the cooperation mode is simple and reliable.

In one embodiment, the lifting assembly further comprises a rotating shaft, the rotating shaft is rotatably arranged on the lower baking tray assembly, and the gear piece is arranged at the end of the rotating shaft.

According to the arrangement, the rotating shaft is arranged on the lower baking tray assembly, the gear piece is arranged at the end of the rotating shaft, and the user can better control the lifting assembly to lift the upper baking tray assembly.

In one embodiment, the number of the gear pieces is two, and the two gear pieces are respectively arranged at two end parts of the rotating shaft; the transmission pieces comprise two transmission pieces, and each transmission piece corresponds to one gear piece.

So set up, the tip of pivot is located respectively to two gear pieces, and correspondingly, each driving medium is corresponding to a gear piece to when the pivot is driven to rotate, two gear pieces can rotate simultaneously, can more steadily lift last overware subassembly.

In one embodiment, at least one gear part is provided with a limit outer ring, and the limit outer ring is positioned outside the gear groove.

So set up, spacing outer loop on the gear for inject protruding and slide in the spacing groove, avoid it to break away from the gear groove.

In one embodiment, the lifting assembly further includes an elastic member and a fixing portion disposed on the transmission member, one end of the elastic member is fixedly disposed on the fixing portion, and the other end of the elastic member is fixedly disposed on the lower baking tray assembly.

So set up, the setting of elastic component is favorable to the driving medium to reset.

In one embodiment, the lifting assembly comprises a handle, a first gear and a second gear, the first gear is fixedly arranged at one end of the rotating shaft and is meshed with the second gear, and the handle is fixedly connected with the second gear.

So set up, two gear engagement transmissions, through handle control second gear rotation, through the transmission between the gear to control pivot corotation or reversal, be convenient for operate and rotate steadily.

In one embodiment, the lower baking tray assembly comprises a base and a lower shell, the lower shell is arranged on the base, and the lifting assembly is located between the base and the lower shell.

So set up, lifting unit sets up in roast dish subassembly down and lies in down between casing and the base, and convenience of customers controls lifting unit.

In one embodiment, a side wall of the lower shell is provided with a first limiting part, and the first limiting part is provided with a limiting hole;

the transmission piece is arranged in the limiting hole in a lifting mode.

So set up, spacing hole is favorable to restricting the moving direction of driving medium to go up and down along spacing hole with the driving medium, be favorable to promoting the stability of overware subassembly on the driving medium lifting.

In one embodiment, the lifting assembly further includes a second limiting portion disposed on the transmission member, and the second limiting portion can abut against an opening edge of the limiting hole.

So set up, be provided with the second locating part on the driving medium, prevent that the driving medium breaks away from spacing hole.

Drawings

Fig. 1 is a schematic structural diagram of a frying and baking machine according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an exploded view of the grill of FIG. 1;

FIG. 5 is a schematic view of the frying and roasting machine shown in FIG. 1 from another perspective;

FIG. 6 is a schematic cross-sectional view taken at view B-B of FIG. 5;

FIG. 7 is a schematic view of the transmission member of FIG. 4;

FIG. 8 is a schematic view of the structure of the shift member shown in FIG. 4;

fig. 9A to 9D are state diagrams between the lifting assembly and the lower grill pan when the gear position is 0 to 3.

Reference numerals: 10. an upper baking tray assembly; 11. an upper housing; 12. an upper baking tray; 20. a lower baking tray assembly; 21. a base; 22. a lower housing; 23. a baking tray is arranged; 231. avoiding holes; 24. a first limiting part; 241. a limiting hole; 30. a lifting assembly; 31. a rotating shaft; 32. a gear member; 321. a gear groove; 3211. a first gear groove; 3212. a second gear groove; 3213. a third gear groove; 3214. a fourth gear groove; 322. a center of rotation; 323. a limiting outer ring; 33. a transmission member; 331. a protrusion; 332. a fixed part; 333. a second limiting part; 34. an elastic member; 35. a handle; 36. a first gear; 37. a second gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 9D, the frying and roasting machine includes an upper roasting tray assembly 10, a lower roasting tray assembly 20, and a hinge structure (not shown), wherein the upper roasting tray assembly 10 is rotatably connected to the lower roasting tray assembly 20 through the hinge structure, so that the upper roasting tray assembly 10 can be unfolded and folded relative to the lower roasting tray assembly 20. A cooking space is formed between the upper and lower baking tray components.

The upper roasting tray assembly 10 includes an upper housing 11 and an upper roasting tray 12, the lower roasting tray assembly 20 includes a base 21, a lower housing 22 and a lower roasting tray 23, and a cooking space is formed between the upper and lower roasting trays.

To accommodate the thickness of the food material, it is often necessary to change the cooking space of the grill. For the existing frying and baking machine, the frying and baking machine can be divided into two types: the first is that the frying and roasting machine can be unfolded at different angles by the rotation of the hinge structure to adapt to the thickness of food materials, and at the moment, an included angle is formed between an upper roasting tray component and a lower roasting tray component of the frying and roasting machine. The second is that the hinge structure of the frying and baking machine has a certain floating gap or is a liftable hinge structure, when the cooking space of the frying and baking machine is changed, the upper baking tray assembly 10 can be lifted integrally, and the upper and lower baking tray assemblies are in a generally parallel state.

For the frying and baking machine related to the present application, the lifting assembly 30 can change the gap between the upper and lower baking tray assemblies by lifting the upper baking tray assembly 10. In the frying and baking machine of the present application, the lifting assembly 30 can be applied to the first frying and baking machine and also can be applied to the second frying and baking machine. When the lifting assembly 30 is applied to the first frying and baking machine, the gap between the upper and lower baking tray assemblies is the included angle between the upper and lower baking tray assemblies. When the lifting assembly 30 is applied to the second type of the frying and baking machine, the gap between the upper and lower baking tray assemblies 20 is the distance between the upper and lower baking tray assemblies. This will not be further distinguished hereinafter and will be collectively referred to as the gap between the upper and lower grill pan assemblies.

Referring to fig. 1 to 8, the present application provides a frying and roasting machine, which includes an upper roasting pan assembly 10, a lower roasting pan assembly 20, a hinge structure (not shown), and a lifting assembly 30, wherein the upper roasting pan assembly 10 is connected to the lower roasting pan assembly 20 through a hinge assembly, and the lifting assembly 30 is disposed on one of the upper roasting pan assembly 10 or the lower roasting pan assembly 20 and spaced from the hinge assembly for lifting the upper roasting pan assembly 10 to change a gap between the upper roasting pan assembly 10 and the lower roasting pan assembly 20. In other words, the lifting assembly 30 is disposed on the upper grill pan assembly 10 or the lower grill pan assembly 20, rather than on the hinge assembly, and since the hinge assembly is disposed between the upper grill pan assembly and the lower grill pan assembly, and is generally located at the rear end of the upper grill pan assembly and the lower grill pan assembly, the lifting assembly 30 in the present application is beneficial to the user.

The lifting assembly 30 includes a rotating shaft 31, a gear 32 and a transmission member 33, the gear 32 is disposed on the rotating shaft 31, the rotating shaft 31 is rotatably disposed on the lower grill pan assembly 20, and the transmission member 33 is movably disposed on the gear 32 for lifting the upper grill pan assembly 10. The gear 32 can be driven to rotate so that the transmission member 33 can move on the gear 32 to lift the transmission member 33, thereby lifting the upper grill pan assembly 10. In the present application, the gear 32 is driven by the rotation of the rotating shaft 31, and the cooperation between the rotating shaft 31, the gear 32 and the transmission member 33 is utilized to drive the gear 32 to rotate when the rotating shaft 31 rotates, and the transmission member 33 is lifted by the sliding fit between the gear 32 and the transmission member 33, so that the upper bakeware component 10 is lifted by the transmission member 33, thereby achieving the purpose of changing the gap between the upper bakeware component and the lower bakeware component.

In order to facilitate the gap between the upper and lower grill pan assemblies to be adjustable and controllable, a plurality of gears (such as the gear grooves 321 in fig. 8) are provided on the gear 32, when the gear 32 is driven to rotate, the transmission member 33 can be selectively located at different gears, so that the transmission member 33 has different preset lifting heights, and accordingly, when the transmission member 33 is lifted, the upper grill pan assembly 10 can be jacked up, so that the gap between the upper grill pan assembly 10 and the lower grill pan assembly 20 can be changed or the cooking space of the grill pan can be changed, and the change of the cooking space can be adjustable and controllable according to the thickness of food, so as to improve the taste of the food.

In addition, for the change of the cooking space of the conventional frying and roasting machine, the upper roasting tray assembly 10 is jacked up by using the thickness of the food material or according to the change of the thickness of the food material, but in this way, the food material is compacted when the tension disappears or under the continuous gravity action of the upper roasting tray assembly 10, so that the taste of the food is reduced. The utility model provides a frying and roasting machine can utilize lifting unit 30 to lift last overware subassembly 10 and reach the purpose in order to change the clearance between upper and lower overware subassembly 20 to can change frying and roasting machine's culinary art space, avoid going up overware subassembly 10's gravity to cause the influence to eating the material, thereby can promote the taste of eating the material.

It should be noted that the lifting assembly 30 can be disposed on the upper grill pan assembly 10 or the lower grill pan assembly 20, when disposed on the upper grill pan assembly 10, the transmission member 33 of the lifting assembly 30 can be abutted against the lower grill pan assembly 20, and since the lower grill pan assembly 20 is usually disposed on the working surface and cannot move, the transmission member 33 can push the upper grill pan assembly 10 to be lifted. When the lifting assembly 30 is disposed on the lower grill pan assembly 20, the transmission member 33 of the lifting assembly 30 can be abutted against the gear member 32 to support the upper grill pan assembly 10, so that the upper grill pan assembly 10 can be stably lifted to a predetermined height. For convenience of explanation, the lifting assembly 30 is illustrated on the lower tray assembly 20.

The upper grill pan assembly 10 includes an upper housing 11 and an upper grill pan 12, and the upper grill pan 12 is disposed in the upper housing 11. The lower roasting tray assembly 20 includes a base 21, a lower housing 22 and a lower roasting tray 23, and the lower roasting tray 23 is disposed on the lower housing 22. The lower case 22 is fixed on the base 21. Optionally, the lower roasting pan 23 is detachably disposed on the lower housing 22. Lower casing 22 sets up on base 21, lifting unit 30 sets up between lower casing 22 and base 21, and lifting unit 30's pivot 31 rotates the setting for base 21 or lower casing 22, driving medium 33 sets up for base 21 or lower casing 22 goes up and down, in order when pivot 31 rotates, drive gear 32 and rotate, because the rotation of gear 32, and then lifting driving medium 33 goes up and down, the upper end of driving medium 33 can support on last overware 12, thereby reach the mesh of last overware subassembly 10 lifting.

The rotating shaft 31 is rotatably disposed in the base 21 or on the outer bottom wall of the lower housing 22, the lower housing 22 is provided with a first limiting portion 24, a limiting hole 241 is disposed in the first limiting portion 24, and the transmission member 33 is disposed in the limiting hole 241 in a liftable manner to prevent the transmission member 33 from being disengaged from the limiting hole 241.

In order to satisfy that the upper roasting tray assembly 10 is kept stable in the lifting process or is in a stable state after being lifted, the gear members 32 include two, the two gear members 32 are respectively arranged at two ends of the rotating shaft 31, each gear member 32 corresponds to one transmission member 33, so that when the rotating shaft 31 rotates, the two ends of the rotating shaft 31 can synchronously drive the gear members 32 to rotate, and the transmission members 33 are driven to lift.

Correspondingly, two first limiting parts 24 correspondingly arranged are arranged on two outer side walls of the lower shell 22, and the first limiting parts 24 are arranged on the outer side walls of the lower shell 22, so that each transmission piece 33 corresponds to one limiting hole 241 of the first part and can lift in the limiting hole 241.

Further, since the lower baking tray 23 is placed on the lower housing 22, usually the edge of the lower baking tray 23 is overlapped on the lower housing 22, in order to prevent the driving member 33 from jacking up the lower baking tray 23 during the lifting process, the lower baking tray 23 is provided with an avoiding hole 231, and the avoiding hole 231 is arranged opposite to the limiting hole 241, so as to allow the driving member 33 to pass through the avoiding hole 231 to lift the upper baking tray assembly 10 during the lifting process.

A plurality of gear parts are arranged on the gear part 32, and the transmission part 33 is provided with a matching part matched with the gear parts, so that the transmission part 33 forms a plurality of preset lifting heights, and the food materials with different thickness requirements can be better met. As shown in fig. 7 and 8, the shift portion is a shift slot 321, the engaging portion is a protrusion 331, the protrusion 331 movably overlaps the wall of the shift slot 321, and when the shift member rotates, the protrusion can slide between different shift slots, and the engaging manner is simple and reliable.

When the gap between the upper and lower grill pan assemblies 20 needs to be adjusted, the rotating shaft 31 rotates to drive the gear member 32 to rotate, and further drive the gear portion of the gear member 32 to deflect, and when different gear portions contact the protrusions 331, the heights of the corresponding lifted upper grill pan assemblies 10 are also different.

Further, the gear 32 includes a rotation center 322 and a gear portion located outside the rotation center 322, the rotation center 322 is fixedly connected to the rotation shaft 31, the gear portion is a gear groove 321, the distance from the bottom of each gear groove 321 to the rotation center 322 is different, therefore, when the protrusion 331 is engaged with different gear grooves 321, the height corresponding to the lifting of the transmission member 33 is different, and therefore, the height of the upper grill pan assembly 10 lifted by the transmission member 33 is also different.

In the stable lifting state, one end of the transmission member 33 abuts against the bottom wall of the gear groove 321, and the other end abuts against the upper grill pan assembly 10 or the lower grill pan assembly 20, so as to lift the upper grill pan 12 by a corresponding height.

As shown in fig. 8 and 9A to 9D, the shift component 32 has four shift grooves 321, and the distance from the bottom wall of each shift groove 321 to the rotation center 322 is different, so that the lifting height of the upper grill pan assembly 10 of the frying and roasting machine has four shifts, i.e., a shift 0, a shift 1, a shift 2, and a shift 3, and the lifting height of the upper grill pan assembly 10 is different at different shifts, e.g., the upper grill pan assembly 10 is not lifted at the shift 0, the upper grill pan assembly 10 fits the lower grill pan assembly 20, and the lifting height of the upper grill pan assembly 10 is the largest at the shift 3. Correspondingly, the four gear slots are a first gear slot 3211, a second gear slot 3212, a third gear slot 3213 and a fourth gear slot 3214, respectively, wherein a distance between a slot bottom of the first gear slot 3211 and the rotation center 322 is smaller than a distance between a slot bottom of the second gear slot 3212 and the rotation center 322, and a distance between a slot bottom of the second gear slot 3212 and the rotation center 322 is smaller than a distance between a slot bottom of the third gear slot 3213 and the rotation center 322; the distance between the bottom of the third gear groove 3213 and the rotation center 322 is smaller than the distance between the bottom of the fourth gear groove 3214 and the rotation center 322. Therefore, the lifting assembly 30 has four shift positions, and the corresponding states thereof can be referred to fig. 9A to 9D. In other embodiments, the number of the shift position grooves 321 may be other numbers, such as 2, 3, 5, etc., which are not described in detail herein.

Further, in order to prevent the protrusions 331 from being disengaged from the range groove 321, a stopper outer ring 323 is provided on the range member 32, and the stopper outer ring 323 is located outside the range groove 321 to enclose the range groove 321 having an opening into a closed structure.

When there are two shift position members 32, the limiting outer ring 323 can be disposed on one of the shift position members 32, or both shift position members 32 can be disposed to prevent the protrusions 331 from disengaging from the shift position grooves 321. Specifically, the shape of the retainer outer ring 323 follows the shape of the plurality of shift grooves 321, so that a sliding groove with the same width is formed between the retainer outer ring 323 and the plurality of shift grooves 321, and the protrusion 331 can move more smoothly in the sliding groove.

In order to facilitate the resetting of the upper grill pan assembly 10, the lifting assembly 30 further includes an elastic member 34 and a fixing portion 332 disposed on the transmission member 33, wherein one end of the elastic member 34 is fixedly disposed on the fixing portion 332, and the other end is fixedly disposed on the lower grill pan assembly 20. For example, in the 0 position of the frying and roasting machine, the elastic member 34 is in an unstressed state, and in other positions, the elastic member 34 is in a stretched state. When the user shifts gears, if the gear is shifted up, the elastic member 34 is stretched, and if the gear is shifted down, the tensile force of the stretched elastic member 34 can play an auxiliary role when the gear is shifted down, so that the user experience can be improved. Optionally, the resilient member 34 is a spring.

The lifting assembly 30 includes a handle 35, and the handle 35 is disposed at one end of the rotating shaft 31 for controlling the rotation of the rotating shaft 31. Specifically, lifting unit 30 still includes first gear 36 and second gear 37, and first gear 36 sets firmly in the one end of pivot 31 and is connected with the meshing of second gear 37, and handle 35 and second gear 37 fixed connection to when using, handle 35 can control second gear 37 and rotate, in order to drive first gear 36 through second gear 37 and rotate, and then drive pivot 31, adopt gear drive, be favorable to controlling driven stability.

As shown in fig. 6, in order to prevent the transmission member 33 from being separated from the limiting hole 241, the transmission member 33 is further provided with a second limiting portion 333, the second limiting portion 333 can abut against the opening edge of the limiting hole 241, and the limiting portion is a protruding block formed by protruding from the transmission member 33.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A frying and baking machine is characterized by comprising:

an upper tray assembly (10);

a lower tray assembly (20);

a hinge assembly by which the upper tray assembly (10) is connected to the lower tray assembly (20); and

the lifting assembly (30) is arranged on the upper baking tray assembly (10) or the lower baking tray assembly (20) and is arranged at intervals with the hinge assembly, the lifting assembly (30) comprises a transmission piece (33) and a gear piece (32), a plurality of gear grooves (321) are formed in the gear piece (32), and the gear piece (32) can be driven to rotate so that the transmission piece (33) can move in the gear grooves (321) to have a plurality of preset lifting heights.

2. The frying and roasting machine as claimed in claim 1, wherein the transmission element (33) is provided with a projection (331) which cooperates with the gear groove (321), the projection (331) being movably attached to the wall of the gear groove (321).

3. The frying and roasting machine according to claim 2, wherein the lifting assembly (30) further comprises a rotating shaft (31), the rotating shaft (31) is rotatably disposed on the lower roasting pan assembly (20), and the gear member (32) is disposed at an end of the rotating shaft (31).

4. The frying and roasting machine according to claim 3, wherein said two gear members (32) are provided, and said two gear members (32) are respectively provided at both ends of said rotating shaft (31);

the transmission piece (33) comprises two transmission pieces, and each transmission piece (33) corresponds to one gear piece (32).

5. The frying and roasting machine according to claim 4, wherein at least one of said shift members (32) is provided with a limit outer ring (323), said limit outer ring (323) being located outside said shift groove (321).

6. The frying and roasting machine of claim 3, wherein the lifting assembly (30) further comprises an elastic member (34) and a fixing portion (332) disposed on the transmission member (33), one end of the elastic member (34) is fixed to the fixing portion (332), and the other end is fixed to the lower roasting pan assembly (20).

7. The frying and roasting machine according to claim 3, wherein the lifting assembly (30) further comprises a handle (35), a first gear (36) and a second gear (37), the first gear (36) is fixedly arranged at one end of the rotating shaft (31) and is engaged with the second gear (37), and the handle (35) is fixedly connected with the second gear (37).

8. The frying and roasting machine according to claim 2, wherein the lower roasting tray assembly (20) comprises a base (21) and a lower housing (22), the lower housing (22) is disposed on the base (21), and the lifting assembly (30) is located between the base (21) and the lower housing (22).

9. The frying and roasting machine of claim 8, wherein the side wall of the lower housing (22) is provided with a first limiting part (24), and the first limiting part (24) is provided with a limiting hole (241);

the transmission piece (33) is located in the limiting hole (241) in a lifting mode.

10. The frying and roasting machine according to claim 9, wherein the lifting assembly (30) further comprises a second limiting portion (333) disposed on the transmission member (33), the second limiting portion (333) being capable of abutting against an opening edge of the limiting hole (241).

Images