CN216744846U - Horizontal swing blade structure and large air port air conditioner - Google Patents

Abstract

The utility model provides a horizontal swing blade structure and a large-air-port air conditioner, and relates to the technical field of air supply devices, wherein the horizontal swing blade structure comprises: the mounting frame extends vertically and is provided with a first side and a second side which are oppositely arranged in the width direction; the swinging blades are arranged on the mounting frame and distributed at intervals along the length direction of the mounting frame, each swinging blade extends along the horizontal direction, and two ends of each swinging blade in the length direction are respectively connected with the first side and the second side in a rotating manner; and the driving mechanism is used for driving each swinging blade to swing. The transverse swing blade structure and the large-air-opening air conditioner provided by the utility model solve the problem that the swing blade is directly connected with the air outlet and is difficult to disassemble and clean in the traditional technology, and the swing blade and the mounting frame are integrally arranged at the air outlet, so that a user can more conveniently disassemble and clean the swing blade.

Description

Horizontal swing blade structure and large air port air conditioner

Technical Field

The utility model relates to the technical field of air supply devices, in particular to a horizontal swing blade structure and a large-air-opening air conditioner.

Background

Air supply devices such as air conditioners need to be cleaned after being used for a long time, particularly, the swinging blades can accumulate a large amount of dust after being used for a long time, and the air outlet effect and the air outlet quality can be influenced if the swinging blades are not cleaned. The pendulum blade among the conventional art all connects gradually on air supply arrangement's air outlet frame, when wasing, need follow the air outlet frame with the pendulum blade in proper order and dismantle, very waste time on the one hand, difficult operation also probably causes the damage to air supply arrangement when on the other hand is dismantled. Therefore, how to simplify the disassembly and assembly of the swing blade is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a horizontal swing blade structure and a large-air-port air conditioner, which are used for solving the problem that in the prior art, a swing blade is directly connected with an air outlet and is difficult to disassemble and clean.

To solve the problems in the prior art, an embodiment of the present invention provides a yaw blade structure, configured to be disposed at an air outlet of an air supply device, where the yaw blade structure includes:

the mounting frame extends vertically and is provided with a first side and a second side which are oppositely arranged in the width direction;

the swinging blades are arranged on the mounting frame and are distributed at intervals along the length direction of the mounting frame, each swinging blade extends horizontally, and two ends of each swinging blade in the length direction are respectively connected with the first side and the second side in a rotating manner; and the number of the first and second groups,

the driving mechanism comprises a driving cylinder and a transmission shaft, the driving cylinder is in driving connection with the transmission shaft, and the transmission shaft is in transmission connection with the swing blades and used for driving the swing blades to swing.

According to the horizontal swinging blade structure provided by the utility model, the first side and the second side are provided with a plurality of shaft holes, two ends of each swinging blade are respectively provided with a rotating shaft, the rotating shafts at two ends of each swinging blade respectively penetrate through and protrude out of the corresponding shaft holes, and each rotating shaft is used for being lapped with a vortex tongue of an air supply device.

According to the transverse swing blade structure provided by the utility model, the transmission shaft extends along the length direction of the mounting frame, and each transverse swing blade is rotatably connected to the transmission shaft and is distributed at intervals along the length direction of the transmission shaft;

the driving cylinder is in driving connection with the transmission shaft, so that the transmission shaft has a movable stroke in reciprocating motion along the length direction of the transmission shaft, and each swinging blade is driven to swing in the movable stroke of the reciprocating motion.

According to the yaw blade structure provided by the utility model, each yaw blade further comprises a hinge, and each yaw blade is hinged to the transmission shaft through the hinge.

According to the transverse swing blade structure provided by the utility model, the transmission shaft is provided with a plurality of buckles, and the buckles are distributed at intervals along the length direction of the transmission shaft;

each buckle all has the mounting hole, corresponds on each pendulum leaf and is equipped with protruding muscle, each protruding muscle activity joint in corresponding the mounting hole, and have along corresponding the axial pivoted movable stroke of mounting hole.

According to the horizontal swinging blade structure provided by the utility model, the horizontal swinging blade structure further comprises a connecting piece arranged on the mounting frame, the connecting piece comprises a connecting piece and a self-locking buckle, the connecting piece is arranged between the first side and the second side, and the self-locking buckle is rotatably arranged on the connecting piece and is used for being connected with a vortex tongue buckle of an air outlet device.

According to the horizontal swinging blade structure provided by the utility model, the self-locking buckle comprises a connecting column and a buckle rotatably arranged at the end part of the connecting column, and the buckle is used for being matched and clamped with a vortex tongue of an air outlet device.

According to the yaw blade structure provided by the utility model, the connecting block is designed into an arc-shaped connecting block.

The utility model also provides a large-tuyere air conditioner, comprising:

the air conditioner main machine is provided with an air outlet extending along the length direction of the air conditioner main machine; and the number of the first and second groups,

and the transverse swinging blade structure is arranged at the air outlet and is any one of the transverse swinging blade structures.

According to the large-air-port air conditioner provided by the utility model, the air outlet is provided with a vortex tongue, two ends of each swinging blade are respectively provided with a rotating shaft, and the rotating shaft of each swinging blade is lapped on the vortex tongue;

the transverse swinging blade structure further comprises a self-locking buckle, the self-locking buckle comprises a connecting column and a lock catch, a self-locking groove is correspondingly formed in the vortex tongue, and the shape of the self-locking groove is matched with that of the self-locking buckle, so that the transverse swinging blade structure can be detachably connected to the vortex tongue.

According to the transverse swing blade mechanism and the large-air-port air conditioner, the plurality of swing blades are arranged on the mounting frame, so that the plurality of swing blades are integrated, and then the mounting frame is connected with the vortex tongue of the air conditioner, so that the mounting frame can be directly disassembled and cleaned when the swing blades are mounted and cleaned, the mounting and dismounting efficiency of the swing blades is improved, and the user experience is remarkably improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic structural front view of a yaw blade structure provided by the present invention;

FIG. 2 is a front view of the assembly frame of FIG. 1 with the mounting frame removed;

FIG. 3 is a partially assembled perspective view of the rocker blade and link of FIG. 1;

FIG. 4 is a front view of the mounting frame of FIG. 1;

fig. 5 is a schematic partial three-dimensional structure view of the large-air-port fan provided by the utility model.

Reference numerals:

1: a horizontal swing blade structure; 2: installing a frame; 3: swinging the leaves;

4: a drive mechanism; 5: a connecting member; 6: a shaft hole;

7: a rotating shaft; 8: a rib is protruded; 9: a drive shaft;

10: buckling; 11: mounting holes; 12: connecting blocks;

13: a self-locking buckle; 100: a volute tongue.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The yaw blade structure 1 and the large-tuyere air conditioner of the present invention will be described with reference to fig. 1 to 5. Fig. 1 is a front view structural schematic diagram of a yaw blade structure 1 provided by the utility model; FIG. 2 is a front view of the assembly frame 2 of FIG. 1 with the mounting frame removed; FIG. 3 is a partially assembled perspective view of the swing blade 3 and the connecting rod of FIG. 1; FIG. 4 is a front view of the mounting frame 2 of FIG. 1; fig. 5 is a schematic partial three-dimensional structure view of the large-air-port fan provided by the utility model.

Air supply devices such as air conditioners need to be cleaned after being used for a long time, particularly, the swinging blades can accumulate a large amount of dust after being used for a long time, and the air outlet effect and the air outlet quality can be influenced if the swinging blades are not cleaned. The pendulum blade among the conventional art all connects gradually on air supply arrangement's air outlet frame, when wasing, need follow the air outlet frame with pendulum blade 3 in proper order and dismantle, very waste time on the one hand, difficult operation also probably causes the damage to air supply arrangement when on the other hand is dismantled. Therefore, how to simplify the disassembly and assembly of the swing blade 3 is a technical problem that needs to be solved urgently by those skilled in the art.

Referring to fig. 1 to 4, to solve the problems in the prior art, an embodiment of the present invention provides a horizontal swing blade structure 1, configured to be disposed at an air outlet of an air supply device, where the horizontal swing blade structure 1 includes:

installing frame 2, installing frame 2 are along vertical extension, and installing frame 2 has and is relative first side and the second side that sets up in the width direction. In the technical scheme provided by the utility model, the transverse swing blade structure 1 is suitable for the cabinet air conditioner, and therefore, the transverse swing blade structure extends along the vertical direction and is matched with the extending direction of the cabinet air conditioner. Of course, when the present invention is applied to a wall air conditioner, the mounting frame 2 may extend in a horizontal direction, and the present invention is not limited thereto.

Furthermore, a plurality of swing blades 3 are arranged on the mounting frame 2 and distributed at intervals along the length direction of the mounting frame 2, each swing blade 3 extends along the horizontal direction, and two ends of each swing blade 3 in the length direction are respectively connected with the first side and the second side in a rotating manner.

It should be noted that the movement stroke of the swing blades 3 is limited, and is generally 0 to 120 degrees, when each swing blade 3 is in an initial state, that is, when the swing angle is 0 degree, the air outlet of the air outlet device is in a closed state; when the swing angle is 90 degrees, the swing blades 3 are parallel to each other, and the maximum air supply amount is achieved; the effect of preventing direct blowing is achieved when the swinging angle is 60 degrees or 120 degrees. The driving mechanism 4 is used for driving each swing blade 3 to swing in the mounting frame 2 so as to achieve the effect of changing the air outlet direction and the air outlet quantity.

Further, the driving mechanism 4 comprises a driving cylinder and a transmission shaft 9, the driving cylinder is connected with the transmission shaft 9 in a driving manner, and the transmission shaft 9 is connected with each swing blade 3 in a driving manner, so that each swing blade 3 has a movable stroke swinging along the corresponding rotating shaft 7. In the conventional technology, the driving modes of the swing blades 3 are various, and there are driving mechanisms 4 for driving each swing blade 3 to rotate respectively, and there are driving mechanisms for driving all the swing blades 3 to move together. In order to keep the consistency of the movement of the swing blades 3, in the technical scheme provided by the utility model, the matching form of the driving cylinder and the transmission shaft 9 is adopted to achieve the effect of ensuring the consistency of the movement strokes of the swing blades 3, so that the movement of the swing blades 3 is more attractive on one hand, and the interference of the movement of the swing blades 3 is also prevented on the other hand.

According to the transverse swing blade 3 mechanism and the large-air-port air conditioner, the plurality of swing blades 3 are arranged on the mounting frame 2, so that the plurality of swing blades 3 are integrated, and then the mounting frame 2 is connected with the vortex tongue 100 of the air conditioner, so that the mounting frame 2 can be directly disassembled and cleaned when the swing blades 3 are mounted and cleaned, the mounting and disassembling efficiency of the swing blades 3 is improved, and the user experience is remarkably improved.

Specifically, a plurality of shaft holes 6 are formed in the first side and the second side, rotating shafts 7 are arranged at two ends of each swing blade 3, the rotating shafts 7 at two ends of each swing blade 3 penetrate through the corresponding shaft holes 6 and protrude out of the corresponding shaft holes 6, and each rotating shaft 7 is used for being in lap joint with a volute tongue 100 of the air supply device.

Referring to fig. 1-4, two ends of each swing blade 3 are provided with a rotating shaft 7, a shaft rod of the rotating shaft 7 is inserted into the corresponding shaft hole 6 to be movably connected with the mounting frame 2, and an anti-tripping device is formed at an end of the shaft rod, and the diameter of the anti-tripping device is larger than that of the shaft hole 6, so as to achieve the anti-dropping effect. The anti-tripping end part is provided with connecting convex ribs 8, two connecting convex ribs 8 at two ends of each swinging blade 3 can be lapped on a vortex tongue 100 of the air conditioner main machine, so that the connecting line of the two connecting convex ribs 8 forms a rotating shaft 7 of the swinging blade 3, and the swinging blade 3 can swing along the rotating shaft 7.

Specifically, the transmission shaft 9 extends along the length direction of the mounting frame 2, and each swing blade 3 is rotatably connected to the transmission shaft 9 and is distributed at intervals along the length direction of the transmission shaft 9. It should be noted that, the number of the transmission shaft 9 is one, the two ends of the installation frame 2 in the length direction are provided with rotating holes, and the two ends of the transmission shaft 9 are respectively movably inserted into the rotating holes;

the driving cylinder is connected with the transmission shaft 9 in a driving mode, so that the transmission shaft 9 has a moving stroke reciprocating along the length direction of the transmission shaft, and each swing blade 3 is driven to swing in the moving stroke of reciprocating motion. It can be understood that, because each of the swing blades 3 is rotatably connected to the transmission shaft 9, and both ends of each of the swing blades 3 are overlapped with the volute tongue 100 of the air supply device, when the transmission shaft 9 moves along the length direction thereof, one side of each of the swing blades 3 movably connected with the transmission shaft 9 moves along with the transmission shaft 9, and because both ends of the swing blades 3 are overlapped with the volute tongue 100, a connection line of the two rotating shafts 7 forms the rotating shaft 7, and the swing blades 3 can swing up and down along with the movement of the transmission shaft 9.

In addition, it should be noted that the driving end of the driving cylinder is in driving connection with the transmission shaft 9 to drive the transmission shaft 9 to move along the length direction thereof, and the driving stroke of the driving cylinder should not exceed the swing stroke of the swing blade 3, so as to prevent the swing blade 3 from being damaged or falling off. Of course, the driving cylinder is not the only embodiment, for example, a linear driving motor, and the driving cylinder may be used as the driving mode of the transmission shaft 9, and the utility model is not limited thereto. Since the driving mechanism 4 is a prior art, the utility model of the present invention is not described here, and therefore, the structure of the driving cylinder is not described in the drawings of the present invention, so that a skilled person can select the driving mechanism 4 with appropriate parameters and select an appropriate installation position of the driving mechanism 4 according to needs, and only the above driving effect needs to be achieved, and the present invention is not limited thereto.

As mentioned above, each swing blade 3 is rotatably connected to the transmission shaft 9 in various manners, and in one embodiment of the present invention, each swing blade 3 further includes a hinge, and each swing blade 3 is hinged to the transmission shaft 9 through the hinge. The hinge is not suitable to be too long, as long as the hinge can achieve the effect of hinging the swinging blade 3 and the transmission shaft 9, and the swinging blade 3 can also complete swinging under the action of the driving cylinder under the hinged connection effect because the vortex tongue 100 plays a supporting role for the mounting frame 2. Of course, the hinge is not the only embodiment, and other hinge means for achieving a rotational connection are possible, and the utility model is not limited thereto.

The utility model provides a horizontal swing blade structure 1 which is used for simplifying the installation and the disassembly of a swing blade 3, and although the installation frame 2 is arranged, a user can conveniently disassemble the swing blade 3 from an air conditioner main machine, sometimes the swing blade 3 needs to be disassembled from the installation frame 2 for cleaning in order to clean the swing blade 3. In the former embodiment provided by the present invention, although the effect of rotatably mounting the swing blade 3 on the transmission shaft 9 can be achieved by means of the hinge, the mounting and dismounting of the swing blade 3 are still not facilitated.

Referring to fig. 3, in another embodiment provided by the present invention, a plurality of fasteners 10 are disposed on the transmission shaft 9, and the fasteners 10 are spaced apart from each other along the length direction of the transmission shaft 9; each buckle 10 all has mounting hole 11, corresponds on each swing leaf 3 and is equipped with protruding muscle 8, and each protruding muscle 8 activity joint is in the mounting hole 11 that corresponds, and has along the axial pivoted activity stroke of the mounting hole 11 that corresponds.

It should be noted that, in the technical solution provided by the present invention, each mounting hole 11 is semi-open, and an opening is communicated with the mounting hole 11, and the rib 8 can be clipped into the mounting hole 11 through the opening. The catch 10 should be resiliently arranged so as to facilitate the mounting of the bead 8 and not be easily damaged. The setting of buckle 10 has reached the effect of rotating each pendulum leaf 3 of connection and transmission shaft 9 on the one hand, and on the other hand has also made things convenient for the installation of pendulum leaf 3 for the user can be more simple dismantlement and installation pendulum leaf 3.

It should be noted that, the rotating shaft 7 of the swing blade 3 has a lapped connection relation with the volute tongue 100 of the air conditioner, in order to ensure the stability of the installation of the swing blade structure 1, the swing blade structure 1 further includes a connecting member 5 disposed on the installation frame 2, the connecting member 5 includes a connecting block 12 and a self-locking buckle 13, the connecting block 12 is disposed between the first side and the second side, and the self-locking buckle 13 is rotatably disposed on the connecting block 12 and is used for being connected with the volute tongue 100 buckle 10 of the air outlet device. In the technical scheme provided by the utility model, the connecting block 12 is an arc-shaped connecting block 12. The shape of the vortex tongue 100 is matched, so that the vortex tongue and the vortex tongue can be tightly attached, and the installation is more stable. The relevant contents of the self-locking buckle 13 will be described in connection with the downdraft air conditioner below.

Further, the present invention also provides a large air outlet air conditioner, comprising: the air conditioner main machine is provided with an air outlet extending along the length direction of the air conditioner main machine; and the horizontal swing blade structure 1 is arranged at the air outlet.

Referring to fig. 5, the air outlet has a vortex tongue 100, and the rotating shaft 7 of each swing blade 3 is connected to the vortex tongue 100; the vortex tongue 100 is correspondingly provided with a self-locking groove, and the shape of the self-locking groove is matched with that of the self-locking buckle 13, so that the horizontal swinging blade structure 1 can be detachably connected with the vortex tongue 100.

It should be noted that, in the technical scheme provided by the present invention, the self-locking buckle 13 is rotatably connected to the connecting block 12, the self-locking buckle 13 includes a connecting column and a lock catch rotatably disposed at an end of the connecting column, the vortex tongue 100 is also provided with a self-locking groove, the self-locking groove is in an oval shape extending along the transverse direction, when the self-locking buckle 13 is filled into the self-locking groove, the lock catch extends along the vertical direction by rotating the lock catch, and the installation and locking of the horizontal swing leaf structure 1 can be completed. It should be noted that the position and shape of the self-locking slot are not described in the drawings of the present invention, and the position of the self-locking slot only needs to correspond to the position of the self-locking buckle 13; the shape of the locking device and the self-locking groove is not limited to an oval shape, and other shapes, such as a triangle and a rectangle, can be adopted, which is not limited in the present invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A horizontal swinging blade structure is used for being arranged at an air outlet of an air supply device, and is characterized by comprising:

the mounting frame extends vertically and is provided with a first side and a second side which are oppositely arranged in the width direction;

the swinging blades are arranged on the mounting frame and are distributed at intervals along the length direction of the mounting frame, each swinging blade extends horizontally, and two ends of each swinging blade in the length direction are respectively connected with the first side and the second side in a rotating manner; and the number of the first and second groups,

the driving mechanism comprises a driving cylinder and a transmission shaft, the driving cylinder is in driving connection with the transmission shaft, and the transmission shaft is in transmission connection with the swing blades and used for driving the swing blades to swing.

2. The yaw blade structure of claim 1, wherein the first side and the second side are provided with a plurality of shaft holes, two ends of each of the yaw blades are provided with rotating shafts, the rotating shafts at two ends of each of the yaw blades are respectively inserted into and protrude from the corresponding shaft holes, and each of the rotating shafts is used for overlapping with a vortex tongue of the air supply device.

3. The yaw blade structure of claim 2, wherein the transmission shaft extends along a length of the mounting frame, and each of the yaw blades is rotatably connected to the transmission shaft and spaced along the length of the transmission shaft;

the driving cylinder is connected with the transmission shaft in a driving mode, so that the transmission shaft has a moving stroke in a reciprocating motion along the length direction of the transmission shaft, and each swinging blade is driven to swing in the moving stroke of the reciprocating motion.

4. The yaw blade structure of claim 3, wherein each of the swing blades further comprises a hinge, and each of the swing blades is hinged to the transmission shaft by the hinge.

5. The yaw blade structure of claim 3, wherein the transmission shaft is provided with a plurality of buckles, and the buckles are distributed at intervals along the length direction of the transmission shaft;

each buckle is provided with a mounting hole, each swing blade is correspondingly provided with a convex rib, each convex rib is movably clamped in the corresponding mounting hole, and the movable travel of the convex rib is provided with a movable travel capable of rotating along the axial direction of the corresponding mounting hole.

6. The yaw blade structure of claim 5, further comprising a connecting member disposed on the mounting frame, wherein the connecting member comprises a connecting block disposed between the first side and the second side and a self-locking latch rotatably disposed on the connecting block for latching connection with a volute tongue of an air outlet device.

7. The yaw blade structure is characterized in that the self-locking buckle comprises a connecting column and a lock catch rotatably arranged at the end part of the connecting column, and the lock catch is used for being matched and clamped with a vortex tongue of an air outlet device.

8. The yaw blade structure of claim 6, wherein the connecting block is provided as an arc-shaped connecting block.

9. A large-tuyere air conditioner, characterized by comprising:

the air conditioner main machine is provided with an air outlet extending along the length direction of the air conditioner main machine; and (c) a second step of,

the yaw blade structure is arranged at the air outlet and is the yaw blade structure as claimed in any one of claims 1 to 8.

10. The large-air-vent air conditioner as claimed in claim 9, wherein a vortex tongue is provided at the air outlet, a rotating shaft is provided at both ends of each of the swing blades, and the rotating shaft of each of the swing blades is lapped on the vortex tongue;

the transverse swinging blade structure further comprises a self-locking buckle, the self-locking buckle comprises a connecting column and a lock catch, a self-locking groove is correspondingly formed in the vortex tongue, and the shape of the self-locking groove is matched with that of the lock catch, so that the transverse swinging blade structure can be detachably connected to the vortex tongue.

Images