Elastic locking limiting piece, push-out type air deflector limiting structure and air conditioner

Abstract

The application provides an elastic locking limiting piece, a push-out type air deflector limiting structure and an air conditioner. The elastic locking limiting piece comprises a base, an axial limiting part, an elastic arm and a buckle part. The elastic arm extends from the base along an axial direction, and the buckle part protrudes from the elastic arm. An end of the buckle part has a first guide surface. The buckle part is closer to a plug-in front end of the elastic locking limiting piece than the axial limiting part, and the first guide surface faces away from the plug-in front end. The push-out type air deflector limiting structure comprises the elastic locking limiting piece, and the air conditioner comprises the push-out type air deflector limiting structure. The elastic locking limiting piece is inserted into a rotating shaft insertion hole of a push-out rack to limit a hook. When the hook and the rotating shaft are about to be disengaged, the hook pushes the axial limiting part from the axial direction, and at this time, the first guide surface abuts against a buckle surface of the rotating shaft to force the elastic arm to fold and deform, so that the elastic locking limiting piece is pushed out of the rotating shaft, and the hook can be disengaged from the rotating shaft from the axial direction, thereby avoiding damage to the hook and the rotating shaft.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, specifically to an elastic locking limiter, a push-out air guide plate limiting structure, and an air conditioner. Background Technology

[0002] Existing air conditioners have a push-out type air guide plate limiting structure, which includes a push rack, an air guide plate assembly, and a limiting bolt. The push rack has a rotating shaft, and the air guide plate assembly has a hook. The hook engages with the rotating shaft, and the limiting bolt locks it onto the rotating shaft along the axial direction. The head of the limiting bolt blocks the hook from the axial direction to prevent the push rack from becoming loose from the air guide plate assembly.

[0003] The problem with the existing push-out type air guide plate limiting structure is that when the hook on the air guide plate assembly and the rotating shaft are not properly matched, there is a tendency for the hook and the rotating shaft to disengage. However, the axial direction is blocked by the limiting bolt, and the hook will deform and come off the outer periphery of the rotating shaft, which can easily cause the hook or the rotating shaft to break. Summary of the Invention

[0004] The primary objective of this invention is to provide an elastic locking limiter that effectively protects the air guide plate assembly and the push rack.

[0005] The second objective of this invention is to provide an effective push-out air guide plate limiting structure that protects the air guide plate assembly and the push rack.

[0006] A third objective of this invention is to provide an air conditioner that effectively protects the air guide plate assembly and the rack.

[0007] The first objective of this invention is to provide an elastic locking limit member comprising a base, an axial limiting portion, an elastic arm, and a latching portion; the axial limiting portion is fixedly connected to the base, and in the axial projection of the elastic locking limit member, the axial limiting portion is located outside the base; the elastic arm extends axially from the base, and the latching portion protrudes from the outer peripheral surface of the elastic arm; in the axial direction of the elastic locking limit member, the end of the latching portion has a first guide surface; in the axial direction of the elastic locking limit member, the elastic locking limit member has an insertion front end, the latching portion is closer to the insertion front end than the axial limiting portion, and the first guide surface faces away from the insertion front end.

[0008] As can be seen from the above scheme, the elastic locking limiter can be inserted into the insertion hole of the rotating shaft of the rack and engaged with the rotating shaft, and limit the hook from the axial direction; when there is a tendency for the hook and the rotating shaft to disengage, the hook pushes the axial limiting part from the axial direction. At this time, the first guide surface abuts against the buckling surface of the rotating shaft to force the elastic arm to retract and deform, thereby causing the elastic locking limiter to pop out from the rotating shaft, and the hook can disengage from the rotating shaft from the axial direction, thereby avoiding damage to the hook and the rotating shaft.

[0009] A further design is that the latching part also has a second guide surface, which is axially opposite to the first guide surface.

[0010] As can be seen from the above, the second guide surface, which is set opposite to the first guide surface, facilitates the elastic locking limit component to be snapped into the insertion hole of the rotating shaft, reducing the installation difficulty and improving the assembly efficiency.

[0011] A further proposed solution is that the first guide surface forms a first tilt angle with the axis of the elastic locking limit member; the second guide surface forms a second tilt angle with the axis; and the second tilt angle is smaller than the first tilt angle.

[0012] As can be seen from the above, this setting ensures that the elastic locking limit component can only be disengaged from the rotating shaft under a certain degree of axial force, so as to ensure assembly stability and good limiting effect during normal use.

[0013] A further embodiment includes an insert arm extending from the base along the axial direction of the elastic locking limiter, with an axial limiting portion protruding from the insert arm.

[0014] As can be seen above, the insert arm is used to insert into the socket of the rotating shaft. The insert arm and the socket are positioned to each other, which further improves the stability after assembly.

[0015] A further option is to arrange at least two insertion arms on the outer periphery of the base.

[0016] As can be seen from the above, this design allows for better positioning between the insertion arm and the insertion port.

[0017] A further option is to have the insertion arm extend from the base in the same direction as the elastic arm extends from the base.

[0018] As can be seen from the above, this design facilitates the processing and molding of the elastic locking limit component, resulting in a more compact overall structure.

[0019] A further option is to make the length of the insert arm greater than the length of the elastic arm in the axial direction of the elastic locking limit member.

[0020] As can be seen from the above, this design makes the arrangement of the snap-fit ​​positions on the rotating shaft for cooperating with the snap-fit ​​part more reasonable, reduces the design and processing difficulty, and lowers production costs.

[0021] Another further option is that the insertion arm extends from the base in the opposite direction to the direction the elastic arm extends from the base.

[0022] A further approach is to have the outer peripheral surfaces of multiple insert arms located on the same circumferential surface.

[0023] As can be seen above, the insertion hole is a round hole, and the outer peripheral surface of multiple insertion arms cooperates with the inner wall surface of the insertion hole to further improve the assembly stability between the elastic locking limit component and the rotating shaft, thereby ensuring the stability of use.

[0024] A further option is to install the axial limiting part on the elastic arm.

[0025] As can be seen from the above, this design makes the structure more streamlined and reduces the processing cost while achieving axial limiting and elastic engagement of the axial limiting part.

[0026] A further option is to have at least two elastic arms positioned on the outer periphery of the base.

[0027] As can be seen above, multiple flexible arms engage with the pivot from multiple directions, which prevents the latching parts from becoming abnormally loose from the latching position.

[0028] The second objective of this invention is to provide a push-out type air guide plate limiting structure, which includes a push-out rack and an air guide plate assembly. The front end of the push-out rack is provided with a rotating shaft, and the air guide plate assembly is provided with a hook that engages with the outer periphery of the rotating shaft. The push-out type air guide plate limiting structure also includes an elastic locking limiting member, which is the aforementioned elastic locking limiting member. The rotating shaft is provided with an insertion hole, and the push-out rack is provided with a snap-fit ​​position and a snap-fit ​​surface facing the snap-fit ​​position at the rotating shaft. The elastic locking limiting member is inserted into the insertion hole, and the snap-fit ​​part is located at the snap-fit ​​position. In the axial direction of the rotating shaft, the first guide surface cooperates with the snap-fit ​​surface, and the axial limiting part limits the hook.

[0029] A further solution is to form a peripheral wall on the outer periphery of the insertion hole, with the locking position being a groove formed on the peripheral wall.

[0030] As can be seen from the above, this design allows for a smaller size of the elastic locking limiter, reducing material costs.

[0031] Another further embodiment is that the insertion hole extends through the rotating shaft along the axial direction of the rotating shaft, and the insertion hole has an insertion outlet; a snap-fit ​​position is formed outside the insertion outlet, and the snap-fit ​​surface is located on the outer periphery of the insertion outlet.

[0032] As can be seen from the above, this setting can reduce the difficulty of forming the shaft and reduce processing costs.

[0033] The third objective of this invention is to provide an air conditioner that includes a push-out type air guide plate limiting structure, wherein the push-out type air guide plate limiting structure adopts the above-mentioned push-out type air guide plate limiting structure. Attached Figure Description

[0034] Figure 1 This is an exploded view of the first embodiment of the push-out air guide plate limiting structure of the present invention.

[0035] Figure 2This is a structural diagram of the elastic locking limit member in the first embodiment of the push-out air guide plate limiting structure of the present invention.

[0036] Figure 3 This is an axial projection view of the elastic locking limit member in the first embodiment of the push-out air guide plate limiting structure of the present invention.

[0037] Figure 4 This is a cross-sectional view of the first embodiment of the push-out air guide plate limiting structure of the present invention.

[0038] Figure 5 This is an exploded view of the hidden air guide plate assembly in the second embodiment of the push-out air guide plate limiting structure of the present invention.

[0039] Figure 6 This is a structural diagram of the elastic locking limit member in the third embodiment of the push-out air guide plate limiting structure of the present invention.

[0040] Figure 7 This is a structural diagram of the elastic locking limit member in the fourth embodiment of the push-out air guide plate limiting structure of the present invention.

[0041] Figure 8 This is a structural diagram of the elastic locking limit member in the fifth embodiment of the push-out air guide plate limiting structure of the present invention. Detailed Implementation

[0042] First embodiment of push-out air guide plate limiting structure

[0043] See Figure 1 , Figure 1 This is an exploded view of the first embodiment of the push-out air guide plate limiting structure of the present invention. The air conditioner provided by the present invention has a push-out air guide plate limiting structure, which consists of a push-out rack 1, an air guide plate assembly 2, and an elastic locking limiting member 3. The push-out rack 1 is driven by a motor and gear transmission to achieve linear movement along its own length extension direction; the push-out rack 1 includes a rack body 11 and a rotating shaft 12 extending from the extended end of the rack body 11; the air guide plate assembly 2 is disposed at the air outlet of the air conditioner; the air guide plate assembly 2 includes an air guide plate body 21 and a hook 22 extending from the air guide plate body 21; the hook 22 is fastened to the rotating shaft 12, and then the elastic locking limiting member 3 is inserted into the insertion hole 120 of the rotating shaft 12, thus the hook 22 is restricted between the elastic locking limiting member 3 and the rack body 11.

[0044] The rotating shaft 12 has an insertion hole 120 opened from the axial end. The rotating shaft 12 has a peripheral wall 121 surrounding the outer periphery of the insertion hole 120. The peripheral wall 121 is provided with two symmetrically arranged snap-fit ​​positions. The snap-fit ​​positions are square-shaped slots 122 that pass through the inner and outer sides of the peripheral wall 121.

[0045] See Figure 2and Figure 3 , Figure 2 This is a structural diagram of the elastic locking limiting member in the first embodiment of the push-out air guide plate limiting structure of the present invention. Figure 3 This is an axial projection view of the elastic locking limiting member in the first embodiment of the push-out air guide plate limiting structure of the present invention. The axial end of the elastic locking limiting member 3 has a base 31. When the elastic locking limiting member 3 is inserted, the base 31 serves as the insertion front end 300. The base 31 has an insertion arm 32 and an elastic arm 34 extending in the opposite direction (negative z-axis direction) of the insertion direction. A pair of insertion arms 32 are symmetrically arranged on the outer periphery of the base 31, and a pair of elastic arms 34 are symmetrically arranged on the outer periphery of the base 31. The insertion arms 32 and the elastic arms 34 are 90 degrees apart in the circumferential direction of the base 31. The outer peripheral surfaces 321 of the pair of insertion arms 32 and the outer peripheral surfaces 341 of the pair of elastic arms 34 are all located on the same circumferential surface.

[0046] In the axial direction of the elastic locking limit member 3, the extension length of the insertion arm 32 is greater than the extension length of the elastic arm 34. An axial limiting part 33 is connected to the extended end of the insertion arm 32. The axial limiting part 33 protrudes in a shoulder-like shape from the outer peripheral surface 321 of the insertion arm 32 along the radial direction of the elastic locking limit member 3. Figure 3 On the axial projection of the elastic locking limit member 3, the axial limiting part 33 is located outside the base 31.

[0047] Combined Figure 4 , Figure 4 This is a cross-sectional view of the first embodiment of the push-out air guide plate limiting structure of the present invention. A latching portion 35 is formed by a protrusion on the outer peripheral surface 341 of the elastic arm 34, as shown in the figure. Figure 3 On the axial projection of the elastic locking limit member 3, the latching part 35 is located outside the base 31. On the axial direction of the elastic locking limit member 3, the latching part 35 has a first guide surface 351 and a second guide surface 352 that are disposed opposite to each other. Both the first guide surface 351 and the second guide surface 352 are planes. The first guide surface 351 forms a first tilt angle α with the axis L of the elastic locking limit member 3; the second guide surface 352 forms a second tilt angle b with the axis L, and the second tilt angle b is smaller than the first tilt angle α.

[0048] In the axial direction of the elastic locking limit member 3, the extension length of the insertion arm 32 is greater than the extension length of the elastic arm 34. The axial limiting part 33 is located at the extension end of the insertion arm 32. Therefore, in the axial direction, the latching part 35 is closer to the insertion front end 300 than the axial limiting part 33, and the first guide surface 351 faces away from the insertion front end 300, while the second guide surface 352 faces the insertion front end.

[0049] Combination Figures 1 to 4When assembling the push-out air guide plate limiting structure, first fasten the hook 22 to the outer periphery of the rotating shaft 12, and then insert the elastic locking limiting member 3. The insertion front end 300 first enters the insertion hole 120, and then the second guide surface 352 abuts against the peripheral wall 121 of the rotating shaft 12, causing the elastic arm 34 to elastically deform and retract; until the latching part 35 enters the latching groove 122, the elastic arm 34 springs back, the latching part 35 latches against the peripheral wall 121, and the first guide surface 351 is opposite to the latching surface 122a in the latching groove 122 for limiting.

[0050] Since the outer peripheral surface 321 of the insertion arm 32 and the outer peripheral surface 341 of the elastic arm 34 are both located on the same circumferential surface, and the axial limiting part 33 protrudes from the outer peripheral surface 321 of the insertion arm 32, the elastic locking limiting member 3 is inserted into the circular insertion hole 120. Figure 1 (As shown) After insertion, the outer peripheral surface 321 of the insertion arm 32 and the outer peripheral surface 341 of the elastic arm 34 both mate with the inner peripheral wall of the insertion hole 120 to improve insertion stability. After insertion is completed, since the outer diameter of the axial limiting part 33 is larger than the inner diameter of the insertion hole 120, the axial limiting part 33 is restricted outside the axial end face of the rotating shaft 12. In the axial direction of the rotating shaft 12, the hook 22 that is fastened to the outer periphery of the rotating shaft 12 is restricted in position 13 between the rack body 11 and the axial limiting part 33.

[0051] When the engagement between the hook 22 and the rotating shaft 12 is abnormal, i.e., when there is a tendency for the hook 22 and the rotating shaft 12 to disengage, the hook 22 generates a pressing force on the axial limiting part 33 in the axial direction of the rotating shaft 12. When the pressing force exceeds a certain value, the first guide surface 351 and the snapping surface 122a in the slot 122 abut against each other, causing the elastic arm 34 to elastically deform and retract. Subsequently, the snapping part 35 disengages from the slot 122, and under the pressure of the pressing force, the elastic locking limiting member 3 pops out from the insertion hole 120. Then, the hook 22 disengages from the rotating shaft 12 axially. The axial disengagement method of the hook 22 can prevent the hook 22 or the rotating shaft 12 from breaking when the hook 22 deforms and disengages in the outer circumferential direction of the rotating shaft 12, thereby improving the service life of the product.

[0052] Second embodiment of the push-out air guide plate limiting structure

[0053] See Figure 5 , Figure 5This is an exploded view of the hidden air guide plate assembly in the second embodiment of the push-out air guide plate limiting structure of the present invention. In this embodiment, the insertion hole 410 in the rotating shaft 41 of the push-out rack passes through the opposite ends of the push-out rack along the axial direction of the rotating shaft 41. At the front end in the insertion direction, the insertion hole 410 has an insertion outlet 411, and a snap-fit ​​position is formed outside the insertion outlet 411. The snap-fit ​​surface 412 is located on the outer periphery of the insertion outlet 411. On the elastic locking limiting member 4, the extension length of the insertion arm 42 is long enough to allow the elastic locking limiting member 4 to be inserted into the insertion hole 410 and pass through the insertion outlet 411. After the elastic locking limiting member 4 is inserted into the insertion hole 410, the snap-fit ​​part 45 passes through the insertion outlet 411, and the first guide surface 451 is opposite to the snap-fit ​​surface 412.

[0054] Third embodiment of the push-out air guide plate limiting structure

[0055] See Figure 6 , Figure 6 This is a structural diagram of the elastic locking limit member in the third embodiment of the push-out air guide plate limiting structure of the present invention. In this embodiment, the direction in which the insert arm 52 extends from the base 51 is opposite to the direction in which the elastic arm 54 extends from the base 51. This arrangement can also satisfy the required function of the elastic locking limit member 5.

[0056] Fourth embodiment of the push-out air guide plate limiting structure

[0057] See Figure 7 , Figure 7 This is a structural diagram of the elastic locking limiting member in the fourth embodiment of the push-out air guide plate limiting structure of the present invention. In this embodiment, the axial limiting part 63 is fixedly disposed on the outer periphery of the base 61. The base 61 does not have an insertion arm. The extended end of the elastic arm 64 away from the base 61 serves as the insertion front end 600 of the elastic locking limiting member 6. The elastic arm 64 is inserted into the insertion hole of the rotating shaft, thereby achieving insertion positioning and elastic fastening.

[0058] Fifth embodiment of the push-out air guide plate limiting structure

[0059] See Figure 8 , Figure 8 This is a structural diagram of the elastic locking limiting member in the fifth embodiment of the push-out air guide plate limiting structure of the present invention. In this embodiment, the elastic locking limiting member 7 consists of a base 71, an elastic arm 74, an axial limiting part 73, and a snap-fit ​​part 75, but does not have an insert arm; the elastic arm 74 is also an elastic insert arm, the axial limiting part 73 protrudes from the extended end of the elastic arm 74, and the snap-fit ​​part 75 protrudes from the middle of the extended part of the elastic arm 74. The elastic arm 74 is inserted into the insertion hole of the rotating shaft, simultaneously achieving insertion positioning and elastic locking.

[0060] Finally, it should be emphasized that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A push-out type air guide plate limiting structure, including a push-out rack and an air guide plate assembly, wherein the front end of the push-out rack is provided with a rotating shaft, and the air guide plate assembly is provided with a hook, the hook engaging with the outer periphery of the rotating shaft; Its features are: The push-out air guide plate limiting structure also includes an elastic locking limiting component, which includes a base, an axial limiting part, an elastic arm, and a snap-fit ​​part; In the axial projection of the elastic locking limit member, the axial limiting portion is located outside the base; The elastic arm extends from the base along the axial direction of the elastic locking limit member, the latching part protrudes from the outer peripheral surface of the elastic arm, and the end of the latching part has a first guide surface in the axial direction of the elastic locking limit member; In the axial direction of the elastic locking limit member, the elastic locking limit member has an insertion front end, the latching part is closer to the insertion front end than the axial limiting part, and the first guide surface faces away from the insertion front end; The elastic locking limiter also includes an insert arm that extends from the base along the axial direction of the elastic locking limiter, and the axial limiting portion protrudes from the insert arm. The axial limiting part is used to receive the axial pressure applied to it by the hook of the air guide plate assembly on the rotating shaft. The rotating shaft is provided with an insertion hole, and the ejector rack is provided with a snap-fit ​​position and a snap-fit ​​surface facing the snap-fit ​​position at the rotating shaft; The elastic locking limit member is inserted into the insertion hole, and the buckle part is located at the buckle position; Along the axial direction of the rotating shaft, the first guide surface engages with the snap-fit ​​surface, and the axial limiting portion limits the snap hook.

2. The push-out type air guide plate limiting structure according to claim 1, characterized in that: The latching part also has a second guide surface, which is disposed opposite to the first guide surface in the axial direction of the elastic locking limit member.

3. The push-out type air guide plate limiting structure according to claim 2, characterized in that: The first guide surface forms a first tilt angle with the axis of the elastic locking limit member; The second guide surface forms a second tilt angle with the axis; The second tilt angle is smaller than the first tilt angle.

4. The push-out type air guide plate limiting structure according to claim 1, characterized in that: At least two of the insert arms are arranged on the outer periphery of the base.

5. The push-out type air guide plate limiting structure according to claim 1, characterized in that: The insertion arm extends from the base in the same direction as the elastic arm extends from the base.

6. The push-out type air guide plate limiting structure according to claim 5, characterized in that: In the axial direction of the elastic locking limit member, the length of the insert arm is greater than the length of the elastic arm.

7. The push-out type air guide plate limiting structure according to claim 1, characterized in that: The direction in which the insert arm extends from the base is opposite to the direction in which the elastic arm extends from the base.

8. The push-out type air guide plate limiting structure according to claim 1, characterized in that: The outer peripheral surfaces of the plurality of insert arms are located on the same circumferential surface.

9. The push-out type air guide plate limiting structure according to claim 1, characterized in that: At least two of the elastic arms are disposed on the outer periphery of the base.

10. The push-out type air guide plate limiting structure according to any one of claims 1 to 9, characterized in that: The rotating shaft forms a peripheral wall on the outer periphery of the insertion hole, and the latching position is a slot formed on the peripheral wall.

11. The push-out type air guide plate limiting structure according to any one of claims 1 to 9, characterized in that: The insertion hole extends through the rotating shaft along the axial direction of the rotating shaft, and the insertion hole has an insertion outlet; The latching position is formed outside the insertion outlet, and the latching surface is located on the outer periphery of the insertion outlet.

12. An air conditioner, including a push-out type air guide plate limiting structure, characterized in that: The push-out air guide plate limiting structure adopts the push-out air guide plate limiting structure as described in any one of claims 1 to 11.

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