A wiper frame

Abstract

The present invention discloses a wiper frame, which comprises a main frame and two sub-frames. The main frame is bow-shaped and is of an elastic structure; the middle parts of the two sub-frames are respectively movably connected to the end parts at both ends of the main frame. When the present invention is in use, a wiper arm is movably connected to the middle part of the main frame, and a wiper blade is fixed to the sub-frame; since the main frame of the present invention can evenly transmit the force of the wiper arm to the sub-frame, the sub-frame applies a uniform force to the wiper blade; moreover, the main frame of the present invention can deform correspondingly according to the magnitude of the force applied by the wiper arm to the main frame to avoid excessive or too small force transmitted to the sub-frame; therefore, the present invention is beneficial to ensuring the scraping effect of the wiper blade.

Description

Technical Field

[0001] The present invention relates to an automotive component, particularly a wiper frame. Background Art

[0002] A wiper generally consists of a wiper blade, a wiper arm, and a power part. The wiper blade includes a wiper frame and a wiper rubber strip fixed on the wiper frame. The existing wiper frame generally has a main body of an arc-shaped spring steel plate. The wiper arm is hinged to the middle of the wiper frame to adjust the position of the wiper blade and apply force to the wiper frame, so that the wiper rubber strip fixed on the wiper frame closely adheres to the automotive windshield. However, at present, the force applied by this structure of the wiper frame to the wiper rubber strip is not uniform. When the wiper arm applies force to the middle of the wiper frame, when the force applied by the wiper arm to the middle of the wiper frame is small, the two ends of the wiper rubber strip will adhere to the windshield, while the middle of the wiper rubber strip cannot adhere to the windshield, greatly affecting the scraping effect of the wiper rubber strip. Summary of the Invention

[0003] The purpose of the present invention is to provide a wiper frame, which is beneficial to ensuring the scraping effect of the wiper rubber strip.

[0004] To achieve the above purpose, the solution of the present invention is:

[0005] A wiper frame includes a main frame and two sub-frames. The main frame is bow-shaped and the main frame is an elastic structure; the middle parts of the two sub-frames are respectively movably connected to the end parts of both ends of the main frame.

[0006] Each sub-frame includes a fixed frame, and the middle part of the fixed frame is movably connected to the end part of the main frame.

[0007] The fixed frame is bow-shaped, and the fixed frame is a rigid structure or an elastic structure.

[0008] Both ends of the fixed frame are respectively provided with a fixing part for fixing the wiper rubber strip.

[0009] The end part of the main frame is hinged to the middle part of the fixed frame.

[0010] The end of the main frame is movably connected to the middle part of the fixed frame through a clip; wherein a buckle hole is formed at the end of the main frame, and a clamping groove is formed at the bottom surface of the middle part of the fixed frame; the clip includes a buckle plate and a base; a first accommodation cavity with openings at both ends is formed on the base, the top of the first accommodation cavity is an elastic plate, and a buckle block is formed at the bottom of the elastic plate; the buckle plate and the bottom of the base cooperate to form a second accommodation cavity with openings at both ends, one side of the buckle plate is hinged to the base, the other side of the buckle plate is detachably connected to the base through a snap structure, and a clamping bar is formed on the inner surface of the buckle plate; the end of the main frame is placed in the first accommodation cavity and is in clearance fit with the first accommodation cavity, and the buckle block of the elastic plate buckles the buckle hole of the main frame; the middle part of the fixed frame is placed in the second accommodation cavity and is in clearance fit with the second accommodation cavity, and the clamping bar of the buckle plate clamps the clamping groove of the fixed frame.

[0011] Each sub-frame includes a connecting frame and two fixed frames; the middle part of the connecting frame is movably connected to the end of the main frame, and the two ends of the connecting frame of each sub-frame are respectively movably connected to the middle parts of the two fixed frames of the sub-frame.

[0012] The connecting frame is in an arch shape and the connecting frame is an elastic structure.

[0013] The connecting frame is in an arch shape and the connecting frame is a rigid structure.

[0014] The fixed frame is in an arch shape and the fixed frame is a rigid structure or an elastic structure.

[0015] The end of the main frame is hinged to the middle part of the connecting frame.

[0016] The end of the connecting frame is hinged to the middle part of the fixed frame.

[0017] The end of the main frame is movably connected to the middle part of the connecting frame through a ferrule; wherein fixed buckles are respectively arranged on both sides of the end of the main frame; connecting buckles are respectively arranged on both sides of the middle part of the connecting frame; the ferrule includes a first ferrule seat, and the first ferrule seat is formed with a first through hole and a second through hole which are distributed up and down; one end of the first ferrule seat is provided with a first elastic claw for buckling the fixed buckle of the main frame and a second elastic claw for buckling the connecting buckle of the connecting frame; the end of the main frame passes through the first through hole and is in clearance fit with the first through hole, and the fixed buckle of the main frame is in snap fit with the first elastic claw; the connecting frame passes through the second through hole and is in clearance fit with the second through hole, and the connecting buckle of the connecting frame is in snap fit with the second elastic claw.

[0018] The ferrule further includes a second ferrule seat, which is connected to the first ferrule seat through a connecting plate; the second ferrule seat is formed with a third through hole and a fourth through hole distributed vertically. The third through hole is aligned with the first through hole, and the fourth through hole is aligned with the second through hole; the end of the main skeleton passes through the third through hole and is in clearance fit with the third through hole; the connecting skeleton passes through the fourth through hole and is in clearance fit with the fourth through hole.

[0019] The end of the connecting skeleton is movably connected to the middle part of the fixed skeleton through a clip; wherein a clamping hole is formed at the end of the connecting skeleton, and a clamping groove is formed at the bottom surface of the middle part of the fixed skeleton; the clip includes a clamping plate and a base; a first accommodating cavity with both ends open is formed on the base, the top of the first accommodating cavity is an elastic plate, and a clamping block is formed at the bottom of the elastic plate; the clamping plate and the bottom of the base cooperate to form a second accommodating cavity with both ends open. One side of the clamping plate is hinged to the base, and the other side of the clamping plate is detachably connected to the base through a snap structure. A clamping strip is formed on the inner surface of the clamping plate; the end of the connecting skeleton is placed in the first accommodating cavity of the clip and is in clearance fit with the first accommodating cavity, and the clamping block of the elastic plate of the clip buckles the clamping hole of the connecting skeleton; the middle part of the fixed skeleton is accommodated in the second accommodating cavity and is in clearance fit with the second accommodating cavity, and the clamping strip of the clamping plate of the clip catches the clamping groove of the fixed skeleton.

[0020] A fixing part for fixing the wiper blade is provided at each end of the fixed skeleton.

[0021] The fixing part is a clamping jaw.

[0022] A connecting seat for connecting the wiper arm is installed in the middle of the main skeleton.

[0023] After adopting the above scheme, when the present invention is in use, the wiper arm is movably connected to the middle part of the main skeleton, and the wiper blade is fixed to the auxiliary skeleton; on the one hand, the middle parts of the two auxiliary skeletons of the present invention are respectively movably connected to the ends of both ends of the main skeleton, so that the main skeleton can evenly transmit the force of the wiper arm to the auxiliary skeleton, making the auxiliary skeleton apply force to the wiper blade evenly; on the other hand, the main skeleton is bow-shaped and the main skeleton is an elastic structure, so that the main skeleton can deform accordingly according to the magnitude of the force applied by the wiper arm to the main skeleton to avoid excessive or too small force transmitted to the auxiliary skeleton; combining these two aspects, the present invention is beneficial to ensuring the scraping effect of the wiper blade. Description of the Drawings

[0024] Figure 1 is a perspective view of a wiper skeleton according to Embodiment 1 of the present invention;

[0025] Figure 2 is a schematic diagram of the cooperation between a wiper skeleton and a wiper blade according to Embodiment 1 of the present invention;

[0026] Figure 3 Schematic diagram of the use of a wiper frame according to the first embodiment of the present invention Figure 1 (The force exerted by the wiper arm on the main frame is relatively large);

[0027] Figure 4 Schematic diagram of the use of a wiper frame according to the first embodiment of the present invention Figure 2 (The force exerted by the wiper arm on the main frame is relatively small);

[0028] Figure 5 Schematic diagram of the cooperation between a wiper frame and a wiper blade according to the second embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the use of a wiper frame according to the second embodiment of the present invention Figure 1 (The force exerted by the wiper arm on the main frame is relatively large);

[0030] Figure 7 Schematic diagram of the use of a wiper frame according to the second embodiment of the present invention Figure 2 (The force exerted by the wiper arm on the main frame is relatively small);

[0031] Figure 8 Three-dimensional schematic diagram of the buckle plate and the base of the clip of the present invention when they are not buckled according to the second embodiment;

[0032] Figure 9 Three-dimensional schematic diagram of the buckle plate and the base of the clip of the present invention when they are buckled according to the second embodiment;

[0033] Figure 10 Cross-sectional view of the buckle plate and the base of the clip of the present invention when they are buckled according to the second embodiment;

[0034] Figure 11 Schematic diagram of the cooperation between the clip of the present invention and the main frame and the fixed frame according to the second embodiment;

[0035] Figure 12 Schematic diagram of the cooperation between a wiper frame and a wiper blade according to the third embodiment of the present invention;

[0036] Figure 13 Schematic diagram of the use of a wiper frame according to the third embodiment of the present invention Figure 1 (The force exerted by the wiper arm on the main frame is relatively large);

[0037] Figure 14 Schematic diagram of the use of a wiper frame according to the third embodiment of the present invention Figure 2 (The force exerted by the wiper arm on the main frame is relatively small);

[0038] Figure 15 Schematic diagram of the cooperation between a wiper frame and a wiper blade according to the fourth embodiment of the present invention;

[0039] Figure 16 Schematic diagram of the use of a wiper frame according to Embodiment 4 of the present invention Figure 1 (The force exerted by the wiper arm on the main frame is relatively large);

[0040] Figure 17 Schematic diagram of the use of a wiper frame according to Embodiment 4 of the present invention Figure 2 (The force exerted by the wiper arm on the main frame is relatively small);

[0041] Figure 18 Three-dimensional schematic diagram of the ferrule according to Embodiment 4 of the present invention;

[0042] Figure 19 Top view of the ferrule according to Embodiment 4 of the present invention;

[0043] Figure 20 Cross-sectional view of the ferrule according to Embodiment 4 of the present invention;

[0044] Figure 21 Schematic diagram of the cooperation between the ferrule and the main frame and the connecting frame according to Embodiment 4 of the present invention;

[0045] Figure 22 For Figure 21 A - A cross-sectional view;

[0046] Figure 23 For Figure 21 B - B cross-sectional view;

[0047] Figure 24 Schematic diagram of the cooperation between the clip and the fixed frame according to Embodiment 4 of the present invention;

[0048] Figure 25 Schematic diagram of the cooperation between the clip and the connecting frame and the fixed frame according to Embodiment 4 of the present invention Figure 1 ;

[0049] Figure 26 Schematic diagram of the cooperation between the clip and the connecting frame and the fixed frame according to Embodiment 4 of the present invention Figure 2 ;

[0050] Figure 27 For Figure 26 Enlarged view at a;

[0051] Figure 28 Three-dimensional view of a wiper frame according to Embodiment 5 of the present invention;

[0052] Figure 29 Schematic diagram of the cooperation between a wiper frame and a wiper blade according to Embodiment 5 of the present invention;

[0053] Figure 30 Schematic diagram of the use of a wiper frame according to Embodiment 5 of the present invention Figure 1 (The force exerted by the wiper arm on the main frame is relatively large);

[0054] Figure 31 Schematic diagram of the use of a wiper frame according to Embodiment 5 of the present invention Figure 2 (The force exerted by the wiper arm on the main frame is relatively small). Detailed implementation manners

[0055] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0056] Embodiment 1:

[0057] As Figures 1 to 4 shown, this embodiment discloses a wiper frame, which includes a main frame 1 and two sub-frames 2.

[0058] Wherein the main frame 1 is in an arc shape and the main frame 1 is an elastic structure; the main frame 1 can be made of spring steel plate or flexible plastic part; a connecting seat 3 can be installed in the middle of the main frame 1 for connecting the main frame 1 with the wiper arm. The middle parts of the two sub-frames 2 are respectively movably connected to the end parts of both ends of the main frame 1; at least two fixing parts 211 for fixing the wiper blade 6 can be provided below each sub-frame 2, and the fixing parts 211 can be clamping claws for clamping the wiper blade 6.

[0059] In this embodiment, each sub-frame 2 includes a fixed frame 21, the fixed frame 21 is in an arc shape, and the fixed frame 21 is a rigid structure or an elastic structure; the middle part of the fixed frame 21 is movably connected to the end part of the main frame 1; specifically, in this embodiment, the middle part of the fixed frame 21 is hinged to the end part of the main frame 1 so as to rotate the fixed frame 21 for adjustment; one of the fixing parts 211 can be provided at each end of the fixed frame 21, and the fixing part 211 can be integrally formed with the fixed frame 21.

[0060] Cooperate with Figures 2 to 4 shown, when the wiper frame of this embodiment is in use, the wiper arm (not shown) is movably connected to the middle of the main frame 1, and the wiper blade 6 is fixed to the sub-frame 2; on the one hand, the middle parts of the two sub-frames 2 of the present invention are respectively movably connected to the end parts of both ends of the main frame 1, so that the main frame 1 can evenly transmit the force of the wiper arm to the sub-frame 2, making the sub-frame 2 apply force to the wiper blade evenly; on the other hand, the main frame 1 is in an arc shape and the main frame 1 is an elastic structure, so that the main frame 1 can deform accordingly according to the magnitude of the force exerted by the wiper arm on the main frame 1; Cooperate with Figure 3As shown, when the wiper arm exerts a large force on the main frame 1, the main frame 1 deforms greatly, playing a buffering role, so as to prevent the wiper arm from exerting too much force on the main frame 1, causing the main frame 1 to transmit too much force to the auxiliary frame 2, so that the auxiliary frame 2 exerts too much force on the wiper strip 6, resulting in too much friction between the wiper strip 6 and the windshield 7, thereby making it difficult for the wiper strip 6 to swing, affecting the scraping effect of the wiper strip 6; Figure 4 As shown, when the wiper arm exerts a smaller force on the main frame 1, the main frame 1 is deformed smaller to avoid the main frame 1 transmitting too little force to the sub-frame 2, so that the sub-frame 2 has enough force on the wiper strip to ensure that the wiper strip 6 can adhere to the windshield 7, thereby ensuring the scraping effect of the wiper strip 6.

[0061] Embodiment 2:

[0062] like Figures 5 to 11 As shown, this embodiment discloses a wiper frame, which includes a main frame 1 and two sub-frames 2.

[0063] The main frame 1 is in an arch shape and is an elastic structure; the main frame 1 can be made of a spring steel plate or a flexible plastic part; a connecting seat 3 can be installed in the middle of the main frame 1 to connect the main frame 1 with the wiper arm. The middle parts of the two sub-frames 2 are movably connected to the ends of the two ends of the main frame 1; at least two fixing parts 211 for fixing the wiper strip 6 can be provided below each sub-frame 2, and the fixing parts 211 can be clamps for clamping the wiper strip 6.

[0064] In this embodiment, each of the sub-skeletons 2 includes a fixed skeleton 21, which is bow-shaped and is a rigid structure or an elastic structure; the middle part of the fixed skeleton 21 is movably connected to the end of the main skeleton 1; a fixed part 211 can be provided at each of the two ends of the fixed skeleton 21, and the fixed part 211 can be integrally formed with the fixed skeleton 21.

[0065] Cooperate Figures 8 to 11 As shown, in this embodiment, the end of the main frame 1 is movably connected to the middle of the fixed frame 21 through a clip 5; wherein the end of the main frame 1 is formed with a buckle hole 11, and the bottom surface of the middle of the fixed frame 21 is formed with a slot 212; Figures 8 to 10As shown, the clip 5 includes a clamping plate 51 and a base 52; a first receiving cavity 521 with openings at both ends is formed on the base 52, the top of the first receiving cavity 521 is an elastic plate 5211, and a fastening block 5212 is formed at the bottom of the elastic plate 5211; the clamping plate 51 and the bottom of the base 52 cooperate to form a second receiving cavity 522 with openings at both ends, one side of the clamping plate 51 is hinged to the base 52, and the other side of the clamping plate 51 is detachably connected to the base 52 through a snap structure. The snap structure includes a convex block 512 provided on the other side of the clamping plate 51 and a snap interface 523 provided on the base 52 for engaging the convex block 512. A clamping strip 511 is formed on the inner surface of the clamping plate 51; cooperation Figure 11 As shown, the end of the main frame 1 is inserted into the first receiving cavity 521 and is in clearance fit with the first receiving cavity 521. The fastening block 5212 of the elastic plate 5211 fastens the fastening hole 11 of the main frame 1; the middle part of the fixed frame 21 is received in the second receiving cavity 522 and is in clearance fit with the second receiving cavity 522. The clamping strip 511 of the clamping plate 51 catches the clamping groove 212 of the fixed frame 21.

[0066] cooperation Figures 5 to 7 As shown, when a wiper frame of this embodiment is in use, a wiper arm (not shown) is movably connected to the middle of the main frame 1, and a wiper blade 6 is fixed to the sub-frame 2; cooperation Figure 6 As shown, when the force applied by the wiper arm to the main frame 1 is relatively large, the main frame 1 deforms greatly, playing a buffering role, avoiding that the force transmitted from the main frame 1 to the sub-frame 2 is too large due to the large force applied by the wiper arm to the main frame 1, resulting in too large a force applied by the sub-frame 2 to the wiper blade 6, causing too large a frictional force between the wiper blade 6 and the windshield 7, making it difficult for the wiper blade 6 to swing and affecting the scraping effect of the wiper blade 6; cooperation Figure 7 As shown, when the force applied by the wiper arm to the main frame 1 is relatively small, the main frame 1 deforms less to avoid too small a force transmitted from the main frame 1 to the sub-frame 2, so that the sub-frame 2 applies sufficient force to the wiper blade 6 to ensure that the wiper blade 6 can adhere to the windshield 7, thus ensuring the scraping effect of the wiper blade 6.

[0067] Embodiment Three:

[0068] As Figures 12 to 14 shown, this embodiment discloses a wiper frame, which includes a main frame 1 and two sub-frames 2.

[0069] Wherein, the main frame 1 is bow-shaped and the main frame 1 is an elastic structure; the main frame 1 can be made of spring steel plate or flexible plastic parts; a connecting seat 3 can be installed in the middle of the main frame 1 for connecting the main frame 1 with the wiper arm. The middle parts of the two sub-frames 2 are respectively movably connected to the end parts of both ends of the main frame 1; at least two fixing parts 211 for fixing the wiper blade 6 can be provided below each sub-frame 2, and the fixing parts 211 can be clamping jaws for clamping the wiper blade 6.

[0070] In this embodiment, each sub-frame 2 includes a connecting frame 22 and two fixing frames 21. Both the connecting frame 22 and the fixing frame 21 are bow-shaped. The middle part of the connecting frame 22 is movably connected to the end part of the main frame 1. The end parts of both ends of the connecting frame 22 of each sub-frame 2 are respectively movably connected to the middle parts of the two fixing frames 21 of this sub-frame 2. One of the fixing parts 211 can be respectively provided at both ends of the fixing frame 21; the connecting frame 22 is an elastic structure to avoid too much or too little force transmitted to the fixing frame 21; the fixing frame 21 can be a rigid structure to ensure its fixing effect on the wiper blade 6, and the fixing frame 21 can also be an elastic structure to ensure the stable force exerted on the wiper blade 6.

[0071] In this embodiment, the end part of the main frame 1 can be hinged to the middle part of the connecting frame 22, and the end part of the connecting frame 22 can be hinged to the middle part of the fixing frame 21, so that the connecting frame 22 and the fixing frame 21 can be rotated for adjustment.

[0072] Cooperate Figures 12 to 14 As shown, when a wiper frame of this embodiment is in use, the wiper arm (not shown) is movably connected to the middle part of the main frame 1, and the wiper blade 6 is fixed to the fixing frame 21 of the sub-frame 2; cooperate Figure 13 As shown, when the force exerted by the wiper arm on the main frame 1 is relatively large, the main frame 1 and the connecting frame 22 deform greatly, playing a buffering role, avoiding that because the force exerted by the wiper arm on the main frame 1 is too large, the force transmitted from the main frame 1 to the sub-frame 2 is too large, resulting in too large a force exerted by the fixing frame 21 on the wiper blade 6, so that the friction between the wiper blade 6 and the windshield 7 is too large, and further making it difficult for the wiper blade 6 to swing, affecting the scraping effect of the wiper blade 6; cooperate Figure 14 As shown, when the force exerted by the wiper arm on the main frame 1 is relatively small, the main frame 1 and the connecting frame 22 deform less to avoid too little force transmitted to the fixing frame 21, so that the fixing frame 21 exerts sufficient force on the wiper blade 6 to ensure that the wiper blade 6 can adhere to the windshield 7, thus ensuring the scraping effect of the wiper blade 6.

[0073] Embodiment Four:

[0074] AsFigures 15 to 27 As shown, this embodiment discloses a wiper frame, which includes a main frame 1 and two sub-frames 2.

[0075] Wherein the main frame 1 is bow-shaped and the main frame 1 is an elastic structure; the main frame 1 can be made of spring steel plate or flexible plastic parts; a connecting seat 3 can be installed in the middle of the main frame 1 for connecting the main frame 1 with the wiper arm. The middle parts of the two sub-frames 2 are respectively movably connected to the end parts of both ends of the main frame 1; at least two fixing parts 211 for fixing the wiper blade 6 can be provided below each sub-frame 2, and the fixing parts 211 can be clamping claws for clamping the wiper blade 6.

[0076] In this embodiment, each sub-frame 2 includes a connecting frame 22 and two fixing frames 21. The connecting frame 22 and the fixing frame 21 are both bow-shaped. The middle part of the connecting frame 22 is movably connected to the end part of the main frame 1. The end parts of both ends of the connecting frame 22 of each sub-frame 2 are respectively movably connected to the middle parts of the two fixing frames 21 of this sub-frame 2. One of the fixing parts 211 can be respectively provided at both ends of the fixing frame 21; the connecting frame 22 is an elastic structure to avoid excessive or too small force transmitted to the fixing frame 21; the fixing frame 21 can be a rigid structure to ensure its fixing effect on the wiper blade 6, and the fixing frame 21 can also be an elastic structure to ensure the stable force applied to the wiper blade 6.

[0077] Cooperate with Figures 15 to 23 As shown, in this embodiment, the end part of the main frame 1 is movably connected to the middle part of the connecting frame 22 through a bushing 4; wherein fixing bayonets 12 are respectively provided on both sides of the end part of the main frame 1; connecting bayonets 221 are respectively provided on both sides of the middle part of the connecting frame 22; the bushing 4 includes a first bushing seat 41, and the first bushing seat 41 is formed with a first through hole 411 and a second through hole 412 distributed up and down; one end of the first bushing seat 41 is provided with a first elastic claw 413 for buckling the fixing bayonet 12 of the main frame 1 and a second elastic claw 414 for buckling the connecting bayonet 221 of the connecting frame 22; the end part of the main frame 1 passes through the first through hole 411 and is in clearance fit with the first through hole 411, and the fixing bayonet 12 of the main frame 1 is in snap-fit with the first elastic claw 413; the connecting frame 22 passes through the second through hole 412 and is in clearance fit with the second through hole 412, and the connecting bayonet 221 of the connecting frame 22 is in snap-fit with the second elastic claw 414.

[0078] Furthermore, cooperate with Figures 15 to 23As shown, the ferrule 4 further includes a second ferrule seat 42, and the second ferrule seat 42 is connected to the first ferrule seat 41 through a connecting plate 43; the second ferrule seat 42 is formed with a third through hole 421 and a fourth through hole 422 which are distributed up and down, the third through hole 421 is aligned with the first through hole 411, and the fourth through hole 422 is aligned with the second through hole 412; the end of the main skeleton 1 passes through the third through hole 421 and is in clearance fit with the third through hole 421; the connecting skeleton 22 passes through the fourth through hole 422 and is in clearance fit with the fourth through hole 422.

[0079] In this embodiment, the end of the connecting skeleton 2 can also be movably connected to the middle part of the fixed skeleton 21 through a clip 5; Figures 24 to 27 As shown, a clamping hole 222 is formed at the end of the connecting skeleton 22, and a clamping groove 212 is formed at the bottom surface of the middle part of the fixed skeleton 21. Figures 8 to 10 As shown, the clip 5 includes a clamping plate 51 and a base 52; a first accommodation cavity 521 with openings at both ends is formed on the base 52, the top of the first accommodation cavity 521 is an elastic plate 5211, and a clamping block 5212 is formed at the bottom of the elastic plate 5211; the clamping plate 51 and the bottom of the base 52 cooperate to form a second accommodation cavity 522 with openings at both ends, one side of the clamping plate 51 is hinged to the base 52, and the other side of the clamping plate 51 is detachably connected to the base 52 through a snap structure, and the snap structure includes a convex block 512 arranged on the other side of the clamping plate 51 and a card interface 523 arranged on the base 52 and used for clamping the convex block 512, and a card strip 511 is formed on the inner surface of the clamping plate 51. Figures 25 to 27 As shown, the end of the connecting skeleton 22 is placed in the first accommodation cavity 521 of the clip 5 and is in clearance fit with the first accommodation cavity 521, and the clamping block 5212 of the elastic plate 5211 of the clip 5 clamps the clamping hole 222 of the connecting skeleton 22; the middle part of the fixed skeleton 21 is accommodated in the second accommodation cavity 522 of the clip 5 and is in clearance fit with the second accommodation cavity 522, and the card strip 511 of the clamping plate 51 of the clip 5 clamps the clamping groove 212 of the fixed skeleton 21.

[0080] Figures 15 to 17 As shown, when a wiper skeleton of this embodiment is in use, the wiper arm (not shown) is movably connected to the middle part of the main skeleton 1, and the wiper blade 6 is fixed to the fixed skeleton 21 of the sub-skeleton 2; Figure 16 ​As shown, when the wiper arm exerts a large force on the main frame 1, the main frame 1 and the connecting frame 22 are deformed greatly, which plays a buffering role, so as to prevent the wiper arm from exerting too much force on the main frame 1, causing the main frame 1 to transmit too much force to the auxiliary frame 2, so that the fixed frame 21 exerts too much force on the wiper strip 6, resulting in too much friction between the wiper strip 6 and the windshield 7, and thus making it difficult for the wiper strip 6 to swing, affecting the scraping effect of the wiper strip; Figure 17 As shown, when the wiper arm exerts a smaller force on the main frame 1, the main frame 1 and the connecting frame 22 are deformed smaller to avoid too little force being transmitted to the fixed frame 21, so that the fixed frame 21 has enough force on the wiper strip 6 to ensure that the wiper strip 6 can be attached to the windshield 7, thereby ensuring the scraping effect of the wiper strip 6.

[0081] Embodiment five:

[0082] like Figures 28 to 31 As shown, this embodiment discloses a wiper frame, which includes a main frame 1 and two sub-frames 2.

[0083] The main frame 1 is in an arch shape and is an elastic structure; the main frame 1 can be made of a spring steel plate or a flexible plastic part; a connecting seat 3 can be installed in the middle of the main frame 1 to connect the main frame 1 with the wiper arm. The middle parts of the two sub-frames 2 are movably connected to the ends of the two ends of the main frame 1; at least two fixing parts 211 for fixing the wiper strips can be provided below each sub-frame 2, and the fixing parts 211 can be clamps for clamping the wiper strips 6.

[0084] In this embodiment, each of the sub-skeletons 2 includes a connecting skeleton 22 and two fixed skeletons 21, and the connecting skeleton 22 and the fixed skeleton 21 are both bow-shaped. The middle part of the connecting skeleton 22 is movably connected to the end of the main skeleton 1, and the ends of the connecting skeleton 22 of each sub-skeleton 2 are respectively movably connected to the middle parts of the two fixed skeletons 21 of the sub-skeleton 2, and the two ends of the fixed skeleton 21 can be respectively provided with a fixing part 211; the connecting skeleton 22 can be a rigid structure to enhance the overall strength of the present invention; the fixed skeleton 21 can be a rigid structure to ensure its fixing effect on the wiper strip 6, and the fixed skeleton 21 can also be an elastic structure to ensure its stable force on the wiper strip 6.

[0085] In this embodiment, the end of the main skeleton 1 can be hinged to the middle of the connecting skeleton 22, and the end of the connecting skeleton 22 can be hinged to the middle of the fixed skeleton 21, so that the connecting skeleton 22 and the fixed skeleton 21 can be rotated for adjustment.

[0086] Cooperate Figures 29 to 31As shown, when a wiper frame of this embodiment is in use, a wiper blade arm (not shown) is movably connected to the middle of the main frame 1, and the wiper blade 6 is fixed to the fixed frame 21 of the auxiliary frame 2; cooperate with Figure 30 As shown, when the force applied by the wiper blade arm to the main frame 1 is relatively large, the main frame 1 deforms greatly, playing a buffering role, avoiding that the force transmitted from the main frame 1 to the auxiliary frame 2 is too large due to the large force applied by the wiper blade arm to the main frame 1, resulting in too large a force applied by the fixed frame 21 to the wiper blade 6, so that the frictional force between the wiper blade 6 and the windshield 7 is too large, and further making it difficult for the wiper blade 6 to swing, affecting the scraping effect of the wiper blade 6; cooperate with Figure 31 As shown, when the force applied by the wiper blade arm to the main frame 1 is relatively small, the main frame 1 deforms less, avoiding that the force transmitted from the main frame 1 to the connecting frame 22 is too small, resulting in too small a force transmitted from the connecting frame 22 to the fixed frame 21, so that the fixed frame 21 has sufficient force on the wiper blade 6 to ensure that the wiper blade 6 can adhere to the windshield 7, thus ensuring the scraping effect of the wiper blade 6.

[0087] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the technical field to which it belongs shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A wiper frame, characterized in that: it includes a main frame and two sub - frames. The main frame is in an arc shape and is an elastic structure; the middle parts of the two sub - frames are respectively movably connected to the end parts of both ends of the main frame; each of the sub - frames includes a fixed frame, and the middle part of the fixed frame is movably connected to the end part of the main frame; the end part of the main frame is movably connected to the middle part of the fixed frame through a clip. Wherein, a buckle hole is formed at the end part of the main frame, and a clamping groove is formed at the bottom surface of the middle part of the fixed frame; the clip includes a buckle plate and a base; a first accommodation cavity with openings at both ends is formed on the base, the top of the first accommodation cavity is an elastic plate, and a buckle block is formed at the bottom of the elastic plate; the buckle plate and the bottom of the base cooperate to form a second accommodation cavity with openings at both ends, one side of the buckle plate is hinged to the base, the other side of the buckle plate is detachably connected to the base through a buckle structure, and a clamping bar is formed on the inner surface of the buckle plate; the end part of the main frame is placed in the first accommodation cavity and has a clearance fit with the first accommodation cavity, and the buckle block of the elastic plate buckles the buckle hole of the main frame; the middle part of the fixed frame is accommodated in the second accommodation cavity and has a clearance fit with the second accommodation cavity, and the clamping bar of the buckle plate clamps the clamping groove of the fixed frame.

2. The wiper frame according to claim 1, characterized in that: the fixed frame is in an arc shape, and the fixed frame is a rigid structure or an elastic structure.

3. The wiper frame according to claim 1, characterized in that: both ends of the fixed frame are respectively provided with a fixing part for fixing the wiper blade.

4. The wiper frame according to claim 3, characterized in that: the fixing part is a clamping jaw.

5. The wiper frame according to claim 1, characterized in that: a connecting seat for connecting the wiper arm is installed in the middle of the main frame.

6. A wiper frame, characterized in that: it includes a main frame and two sub - frames. The main frame is in an arc shape and is an elastic structure; the middle parts of the two sub - frames are respectively movably connected to the end parts of both ends of the main frame; each of the sub - frames includes a connecting frame and two fixed frames; the middle part of the connecting frame is movably connected to the end part of the main frame, and the end parts of both ends of the connecting frame of each sub - frame are respectively movably connected to the middle parts of the two fixed frames of this sub - frame; The end of the connecting framework is movably connected to the middle part of the fixed framework through a clip; wherein a clamping hole is formed at the end of the connecting framework, and a clamping groove is formed at the bottom surface of the middle part of the fixed framework; the clip includes a clamping plate and a base; a first accommodating cavity with openings at both ends is formed on the base, the top of the first accommodating cavity is an elastic plate, and a clamping block is formed at the bottom of the elastic plate; the clamping plate and the bottom of the base cooperate to form a second accommodating cavity with openings at both ends, one side of the clamping plate is hinged to the base, the other side of the clamping plate is detachably connected to the base through a snap structure, and a clamping bar is formed on the inner surface of the clamping plate; the end of the connecting framework is placed in the first accommodating cavity of the clip and is in clearance fit with the first accommodating cavity, and the clamping block of the elastic plate of the clip buckles the clamping hole of the connecting framework; the middle part of the fixed framework is accommodated in the second accommodating cavity and is in clearance fit with the second accommodating cavity, and the clamping bar of the clamping plate of the clip clamps the clamping groove of the fixed framework.

7. A wiper framework according to claim 6, characterized in that: The connecting framework is in an arch shape and the connecting framework is an elastic structure.

8. A wiper framework according to claim 6, characterized in that: The connecting framework is in an arch shape and the connecting framework is a rigid structure.

9. A wiper framework according to claim 6, characterized in that: The fixed framework is in an arch shape and the fixed framework is a rigid structure or an elastic structure.

10. A wiper framework according to claim 7 or 8, characterized in that: The end of the main framework is hinged to the middle part of the connecting framework.

11. A wiper framework according to claim 7, characterized in that: The end of the main framework is movably connected to the middle part of the connecting framework through a ferrule; wherein fixing buckles are respectively arranged on both sides of the end of the main framework; connecting buckles are respectively arranged on both sides of the middle part of the connecting framework; The ferrule includes a first ferrule seat, and the first ferrule seat is formed with a first through hole and a second through hole which are distributed up and down; one end of the first ferrule seat is provided with a first elastic claw for buckling the fixing buckle of the main framework and a second elastic claw for buckling the connecting buckle of the connecting framework; The end of the main framework passes through the first through hole and is in clearance fit with the first through hole, and the fixing buckle of the main framework is in snap connection with the first elastic claw; the connecting framework passes through the second through hole and is in clearance fit with the second through hole, and the connecting buckle of the connecting framework is in snap connection with the second elastic claw.

12. A wiper framework according to claim 11, characterized in that: The ferrule further includes a second ferrule seat, and the second ferrule seat is connected to the first ferrule seat through a connecting plate; the second ferrule seat is formed with a third through hole and a fourth through hole which are distributed up and down, the third through hole is opposite to the first through hole, and the fourth through hole is opposite to the second through hole; the end of the main framework passes through the third through hole and is in clearance fit with the third through hole; the connecting framework passes through the fourth through hole and is in clearance fit with the fourth through hole.

13. A wiper framework according to claim 6, characterized in that: A fixing part for fixing the wiper blade is respectively arranged at both ends of the fixed framework.

14. A wiper frame as claimed in claim 13, characterized in that: the fixing part is a clamping jaw.

15. A wiper frame as claimed in claim 6, characterized in that: a connecting seat for connecting a wiper arm is installed in the middle of the main frame.

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