CN219601197U - Windscreen wiper arm nozzle mounting structure - Google Patents

Abstract

The utility model discloses a wiper arm nozzle mounting structure, which comprises a nozzle carrier, a preliminary positioning block and a limiting block, wherein the nozzle carrier is used for being connected to a nozzle body in advance, the preliminary positioning block is used for being connected to a wiper arm in advance, the limiting block is used for being connected to the wiper arm in advance, an elastic clamping buckle is arranged at the rear end of the nozzle carrier, and the elastic clamping buckle is used for being clamped with a clamping hole formed in the wiper arm matched with the nozzle body; the front end of the nozzle carrier is provided with a positioning groove, and the primary positioning block is clamped on the nozzle carrier through the positioning groove; the limiting block is positioned at the position between the elastic clamping buckle and the initial positioning block, and the nozzle carrier is provided with a limiting groove for clamping the limiting block. The utility model has the advantage of improving the dismounting efficiency between the wiper arm nozzle and the wiper arm.

Description

Windscreen wiper arm nozzle mounting structure

Technical Field

The utility model relates to the field of automobile windshield cleaning, in particular to a wiper arm nozzle mounting structure.

Background

In order to facilitate cleaning of glass and improve definition, the automobile in the current market is provided with a nozzle on the wiper arm for spraying glass cleaning water on the surface of the glass, and the wiper arm swings to wipe the surface of the glass.

Referring to fig. 1 and 2, the existing mounting structure between a wiper arm nozzle and a wiper arm comprises a front clamping block 103 and a rear clamping block 104, wherein the front clamping block 103 and the rear clamping block 104 are respectively arranged at two ends of a wiper arm 102; the front clamping block 103 and the rear clamping block 104 are respectively provided with a front clamping groove 105 and a rear clamping groove 106 at positions corresponding to the front clamping block 103 and the rear clamping block 104, the front clamping block 103 is in a cross shape, and two sides in the front clamping groove 105 are respectively provided with an elastic block 107, so that when the front clamping block 103 is pressed into the front clamping groove 105, two sides of the front clamping block 103 can be abutted against the bottom of the elastic block 107 to finish the positioning of the front end; the inner side wall of the rear clamping groove 106 is provided with an elastic positioning block 108, and the rear clamping block 104 is provided with a positioning hole 109, so that when the rear clamping block 104 is pressed into the rear clamping groove 106, the elastic positioning block 108 is clamped into the positioning hole 109, and the positioning of the rear end is completed.

Aiming at the related technology, when the nozzle of the wiper arm and the wiper arm are required to be disassembled, the elastic block and the elastic positioning block are required to be simultaneously stirred to avoid the front clamping block and the rear clamping block, and then the disassembly can be completed; however, the elastic block and the elastic positioning block are both positioned in the front clamping groove or the rear clamping groove, and the volume of the windscreen wiper arm nozzle of the automobile is smaller, so that the difficulty of poking the elastic block and the elastic positioning block is high, and the disassembly efficiency is low.

Disclosure of Invention

In order to improve the efficiency of dismounting the wiper arm nozzle from the wiper arm, the utility model provides a wiper arm nozzle mounting structure.

The utility model provides a wiper arm nozzle mounting structure, which adopts the following technical scheme:

the utility model provides a windscreen wiper arm nozzle mounting structure, includes the nozzle carrier that is used for connecting in advance in the nozzle body, is used for connecting in advance in windscreen wiper arm's preliminary location piece and is used for connecting in advance in windscreen wiper arm's stopper, the rear end of nozzle carrier is provided with elasticity screens knot, elasticity screens knot is used for with set up the screens hole joint in the windscreen wiper arm of cooperation nozzle body; the front end of the nozzle carrier is provided with a positioning groove, and the primary positioning block is clamped on the nozzle carrier through the positioning groove; the limiting block is positioned at the position between the elastic clamping buckle and the initial positioning block, and the nozzle carrier is provided with a limiting groove for clamping the limiting block.

By adopting the technical scheme, when the wiper arm nozzle and the wiper arm are installed, the positioning groove at the front end of the nozzle carrier is inclined to correspond to the initial positioning block, and the initial positioning block is clamped into the positioning groove; then the nozzle carrier is rotated, and the limiting block is blocked into the limiting groove, so that the rotation direction of the nozzle carrier is more accurate; until the nozzle carrier is rotated to the elastic clamping position to be clamped at the clamping position hole, the installation of the nozzle of the wiper arm can be completed, and the installation mode is simple and convenient to operate and high in installation efficiency.

When dismantling between wiper arm nozzle and the wiper arm, because elasticity screens lock joint is in the screens hole, and the coupler body part that elasticity screens was detained is in the wiper arm and keeps away from one side of nozzle carrier, consequently operating personnel only need stir after the coupler body department that elasticity screens was detained, can directly pull out the wiper arm nozzle from the wiper arm, accomplishes the dismantlement of wiper arm nozzle, and this dismantlement mode is efficient.

Preferably, the preliminary positioning block includes: the device comprises an insertion part and a pair of limiting parts, wherein the insertion part is used for being connected to a wiper arm in advance, and the two limiting parts are respectively arranged at two sides of the insertion part; the positioning groove extends towards the length direction of the nozzle body, and the opposite side walls of the positioning groove are provided with clamping grooves for clamping the limiting parts.

Through adopting above-mentioned technical scheme, when the locating piece card was gone into the constant head tank at first, with spacing portion card go into the screens inslot, can effectively restrict four degrees of freedom of nozzle carrier, reach a preliminary location for follow-up accuracy to nozzle carrier rotation direction.

Preferably, inclined surfaces are arranged on two opposite sides of one end of the limiting block, which is close to the bottom of the limiting groove, and extend in a direction away from each other from one end of the limiting block, which is close to the bottom of the limiting groove.

Through adopting above-mentioned technical scheme to at the rotation nozzle carrier in-process, make the stopper card go into spacing inslot more smooth and easy, improve installation convenience and efficiency.

Preferably, a guide surface is arranged on one side of the outer side wall of the hook body of the elastic clamping buckle, which is close to the front end of the nozzle carrier.

By adopting the technical scheme, because the elastic clamping buckle has elasticity, when the nozzle carrier is rotated to the position of the guide surface of the elastic clamping buckle to be abutted against the edge position of the orifice of the clamping hole, the elastic clamping buckle can be buckled into the clamping hole by continuously pressing the nozzle carrier; this structure has improved the installation effectiveness of nozzle body.

Preferably, an elastic piece is arranged at one side of the nozzle carrier, which is provided with an elastic clamping buckle, and the elastic piece is used for being abutted against a wiper arm matched with the nozzle body.

By adopting the technical scheme, when the elastic clamping buckle is buckled into the clamping hole, the elastic piece is abutted against the wiper arm, and the elastic piece is in a pressing state, so that a force far away from the direction of the wiper arm can be applied to the nozzle carrier, the tightness degree of the hook surface of the elastic clamping buckle, which is abutted against the wiper arm, is improved, the tightness degree of the limiting part, which is abutted against the groove wall of the clamping groove, is further improved, the installation stability of the nozzle body is improved, and the shaking amount of the nozzle body after installation is reduced; in addition, when the hook body of the elastic clamping buckle is shifted to leave the clamping hole, the elastic clamping buckle can leave the clamping hole through the elasticity of the elastic sheet, so that the disassembly efficiency is further improved.

Preferably, the method further comprises: the outer cover is provided with a mounting block at the inner side of the outer cover corresponding to the front end position of the nozzle carrier, the front end position of the nozzle carrier is provided with an inserting block, and the mounting block is provided with an inserting hole for the inserting block to insert; the nozzle carrier is characterized in that a connecting elastic buckle is arranged at the rear end position of the nozzle carrier, a positioning elastic buckle is arranged at the inner side of the outer cover and corresponds to the position of the connecting elastic buckle, and the connecting elastic buckle is connected with the positioning elastic buckle in a buckling mode.

By adopting the technical scheme, in order to reduce damage caused by external force influence on the nozzle body in the use process and reduce looseness of the mounting structure between the wiper arm nozzle and the wiper arm, an outer cover is arranged on the outer cover of the nozzle body; when the wiper arm nozzle and the outer cover are installed, the nozzle carrier is firstly inclined, the plug-in block is inserted into the plug-in hole, and then the nozzle carrier is rotated until the connecting elastic buckle is clamped on the positioning elastic buckle, so that the installation of the wiper arm nozzle and the outer cover is completed; the installation mode is easy and convenient to operate and high in installation efficiency.

When dismantling between wiper arm nozzle and the enclosing cover, owing to detain and fix a position mutual buckle formula connection between the elasticity through connecting, consequently operating personnel only need stir behind the coupler body department of connecting elasticity knot or fixing a position elasticity knot, can directly separate wiper arm nozzle and enclosing cover, accomplish the dismantlement of wiper arm nozzle, this dismantlement mode is efficient.

Preferably, the locking block is arranged on the inner side of the outer cover, the locking block is positioned between the mounting block and the positioning elastic buckle, and the nozzle carrier is provided with a locking groove for the locking block to be clamped in.

Through adopting above-mentioned technical scheme, when rotating the nozzle carrier for the lock position piece is blocked earlier in the locking groove, is limited the direction of rotation of nozzle carrier, makes the connection elasticity knot more accurate joint at location elasticity knot.

Preferably, the two opposite sides of the locking block, which are close to one end of the groove bottom of the locking groove, are provided with guiding surfaces, and the two guiding surfaces extend from one end of the locking block, which is close to the groove bottom of the locking groove, in a direction away from each other.

Through adopting above-mentioned technical scheme to at the rotation nozzle carrier in-process, make the piece card of locking position go into the slot of locking position more smooth and easy, improve installation convenience and efficiency.

Preferably, the outer side wall of the hook body of the connecting elastic buckle, which is close to the positioning elastic buckle, and the outer side wall of the hook body of the positioning elastic buckle, which is close to the connecting elastic buckle, are provided with inclined guide surfaces.

Through adopting above-mentioned technical scheme, when rotating nozzle carrier to connect the oblique guide face butt in the oblique guide face of location elasticity knot of elasticity knot, the accessible continues to press the nozzle carrier, can be through the guide effect of oblique guide face for connect spontaneously accomplish the lock between elasticity knot and the location elasticity knot, improve the installation effectiveness of nozzle body and enclosing cover.

Preferably, the plug block is provided with a smooth surface at one end far away from the nozzle carrier and at one side close to the inner side wall of the outer cover.

By adopting the technical scheme, the obstruction in the process of rotating the nozzle carrier is reduced, and the smoothness of rotating the nozzle carrier is improved.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the disassembly and assembly mode for disassembly and assembly between the wiper arm nozzle and the wiper arm is simple and convenient to operate, and the installation efficiency is high; the disassembly and assembly mode for disassembly and assembly between the wiper arm nozzle and the outer cover is simple and convenient to operate, and the installation efficiency is high.

2. When the primary positioning block is clamped into the positioning groove, the limiting part is clamped into the clamping groove, so that four degrees of freedom of the nozzle carrier can be effectively limited, one primary positioning is achieved, and the accuracy of the subsequent rotation direction of the nozzle carrier is enabled;

3. the tightness degree of the hook surface in the hook body of the elastic clamping buckle, which is abutted against the wiper arm, is improved, and the tightness degree of the limiting part, which is abutted against the groove wall of the clamping groove, is improved, so that the installation stability of the nozzle body is improved, and the shaking amount of the nozzle body after installation is reduced; in addition, when the hook body of the elastic clamping buckle is shifted to leave the clamping hole, the elastic clamping buckle can leave the clamping hole through the elasticity of the elastic sheet, so that the disassembly efficiency is further improved;

4. the self-locking is completed between the connecting elastic buckle and the positioning elastic buckle, so that the installation efficiency of the nozzle body and the outer cover is improved.

Drawings

Fig. 1 is an exploded view of a prior art overall structure of the present utility model.

Fig. 2 is a cross-sectional view showing a structure in which a rear clamping block is clamped into a rear clamping groove according to the prior art.

Fig. 3 is a schematic view showing the overall structure of a wiper arm nozzle mounting structure according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view showing the mounting between the nozzle carrier and the wiper arm in the wiper arm nozzle mounting structure according to the embodiment of the present utility model.

Fig. 5 is a sectional view of a first positioning block in a wiper arm nozzle mounting structure according to an embodiment of the present utility model initially engaged in a positioning groove.

Fig. 6 is a cross-sectional view of the mounting structure of the nozzle of the wiper arm according to the embodiment of the present utility model before the elastic detent button is snapped into the detent hole.

Fig. 7 is a state diagram of a plug block in the nozzle mounting structure of the wiper arm according to the embodiment of the utility model when the plug block is clamped into the plug hole.

Fig. 8 is a cross-sectional view of the mounting structure of the nozzle of the wiper arm according to the embodiment of the present utility model before the connecting elastic buckle and the positioning elastic buckle are buckled.

Fig. 9 is a state diagram of the mounting between the nozzle carrier and the outer cover in the wiper arm nozzle mounting structure according to the embodiment of the present utility model.

Reference numerals illustrate:

1. a nozzle carrier; 11. a positioning groove; 12. a clamping groove; 13. an elastic clamping buckle; 131. a guide surface; 14. an elastic sheet; 15. a limit groove; 16. a plug block; 161. a smooth surface; 17. connecting an elastic buckle; 18. a capture slot; 2. a preliminary positioning block; 21. an insertion section; 22. a limit part; 3. a clamping hole; 4. a limiting block; 41. an inclined surface; 5. an outer cover; 51. a mounting block; 511. a plug hole; 52. positioning an elastic buckle; 521. a sloped guide surface; 53. a lock block; 531. an introduction surface; 101. a nozzle body; 102. a wiper arm; 103. a front clamping block; 104. a rear clamping block; 105. a front clamping groove; 106. a rear clamping groove; 107. an elastic block; 108. an elastic positioning block; 109. and positioning holes.

Detailed Description

The utility model is described in further detail below with reference to fig. 3-9.

The embodiment of the utility model discloses a wiper arm nozzle mounting structure. Referring to fig. 3, the wiper arm nozzle mounting structure includes a nozzle carrier 1 and a preliminary positioning block 2, the nozzle carrier 1 is integrally formed with and connected to a nozzle body 101, and the nozzle carrier 1 extends in a longitudinal direction of the nozzle body 101; the front end of the nozzle carrier 1 corresponds to the water outlet position of the nozzle body 101, and the rear end of the nozzle carrier 1 corresponds to the water inlet position of the nozzle body 101; the primary positioning block 2 is arranged on the wiper arm 102 in advance, the primary positioning block 2 and the wiper arm 102 are integrally formed, the primary positioning block 2 is positioned at the front end position of the wiper arm 102, which is close to the nozzle carrier 1, the front end of the nozzle carrier 1 is provided with a positioning groove 11, the positioning groove 11 extends from the end surface of the nozzle carrier 1 towards the length direction of the nozzle body 101, the positioning groove 11 is communicated with the outside of the nozzle carrier 1 towards one side of the wiper arm 102, and the primary positioning block 2 is clamped to the nozzle carrier 1 through the positioning groove 11; so that after the primary positioning block 2 is clamped into the positioning groove 11, the nozzle carrier 1 can rotate by taking the primary positioning block 2 as a rotating shaft.

Referring to fig. 3 and 4, the preliminary positioning block 2 includes an insertion portion 21 and a pair of limiting portions 22, one end of the insertion portion 21 is integrally formed with the wiper arm 102 in advance, the two limiting portions 22 are integrally formed with both sides of the other end of the insertion portion 21, and the insertion portion 21 is inserted into the nozzle carrier 1 through the positioning groove 11; the opposite side walls of the positioning groove 11 are provided with clamping grooves 12, and the limiting parts 22 are inserted into the nozzle carrier 1 through the clamping grooves 12; thereby, four degrees of freedom of the nozzle carrier 1 can be effectively limited after the initial positioning block 2 is inserted into the positioning groove 11, and the rotation stability of the nozzle carrier 1 is improved.

Referring to fig. 4 and 5, an elastic clamping buckle 13 is arranged at the rear end of the nozzle carrier 1, the elastic clamping buckle 13 and the nozzle carrier 1 are integrally formed, the elastic clamping buckle 13 extends towards the direction perpendicular to the length direction of the nozzle carrier 1, the elastic clamping buckle 13 is used for being clamped with a clamping hole 3 formed in a wiper arm 102 matched with the nozzle body 101, and a hook body of the elastic clamping buckle 13 is hooked on the hole wall of the clamping hole 3 close to one side of the front end of the nozzle carrier 1; after the elastic clamping buckle 13 is clamped in the clamping hole 3, a space exists between the elastic clamping buckle 13 and the hole wall of the clamping hole 3 on one side far away from the front end of the nozzle carrier 1, so that the nozzle carrier 1 can rotate to the smoothness that the elastic clamping buckle 13 enters the clamping hole 3.

The outer side wall of the hook body of the elastic clamping buckle 13 is provided with a guide surface 131, and the guide surface 131 is arranged on one side of the front end of the hook body of the elastic clamping buckle 13, which is close to the nozzle carrier 1, so that the elastic clamping buckle 13 can be buckled into the clamping hole 3 by pressing the nozzle carrier 1, and the installation efficiency between the nozzle of the wiper arm and the wiper arm 102 is improved.

Referring to fig. 4 and 5, the nozzle carrier 1 is formed with elastic pieces 14 at positions near the front end and the rear end in a uniform manner, the elastic pieces 14 are positioned at one side of the nozzle carrier 1 where the elastic clamping buckles 13 are arranged, the cross section of each elastic piece 14 is arc-shaped, and the two elastic pieces 14 are bent from the nozzle carrier 1 in directions away from each other; thus, after the elastic clamping buckle 13 is buckled in the clamping hole 3, the elastic piece 14 applies a force to the nozzle carrier 1 in a direction away from the wiper arm 102, so that the installation stability is improved.

Referring to fig. 5 and 6, the wiper arm nozzle mounting structure further includes a stopper 4, where the stopper 4 is integrally formed in advance on the wiper arm 102, and the stopper 4 is located at a position between the elastic clamping buckle 13 and the initial positioning block 2, the nozzle carrier 1 is provided with a limiting slot 15, and the stopper 4 is inserted into the nozzle carrier 1 through the limiting slot 15; the two opposite sides of one end of the limiting block 4, which is close to the bottom of the limiting groove 15, are respectively provided with an inclined surface 41, the two inclined surfaces 41 extend from one end of the limiting block 4, which is close to the bottom of the limiting groove 15, in the direction away from each other, and inclined surfaces are arranged at the notch position of the limiting groove 15 along the circumferential direction, so that the limiting block 4 is clamped into the limiting groove 15 more smoothly; when the nozzle carrier 1 is rotated, the limiting block 4 is firstly clamped into the limiting groove 15, so that the accuracy of the rotation direction of the nozzle carrier 1 is limited, and the elastic clamping buckle 13 is buckled into the clamping hole 3 more accurately.

Referring to fig. 7, the wiper arm nozzle mounting structure further includes an outer cover 5, the outer cover 5 is covered on one side of the nozzle body 101 far away from the wiper arm 102, a mounting block 51 is integrally formed at a position corresponding to the front end of the nozzle carrier 1 on the inner side of the outer cover 5, and the mounting block 51 is provided with a plugging hole 511; the front end position of the nozzle carrier 1 is integrally formed with a plug block 16, and the plug block 16 is plugged into the mounting block 51 through a plug hole 511; the side of the insertion block 16, which is far from the end of the nozzle carrier 1 and is close to the inner side wall of the outer cap 5, is provided with a smooth surface 161 so that the nozzle carrier 1 can be rotated when the insertion block 16 is inserted into the insertion hole 511.

Referring to fig. 7 and 8, a connection elastic buckle 17 is integrally formed at the rear end position of the nozzle carrier 1, the connection elastic buckle 17 is arranged at one side of the nozzle carrier 1 far away from the elastic clamping buckle 13, and the connection elastic buckle 17 extends towards the direction perpendicular to the length direction of the nozzle carrier 1; the inner side of the outer cover 5 is integrally formed with a positioning elastic buckle 52 at a position corresponding to the position of the connecting elastic buckle 17, the hook body of the connecting elastic buckle 17 and the hook body of the positioning elastic buckle 52 are oppositely arranged, and the connecting elastic buckle 17 is in snap connection with the positioning elastic buckle 52; the outer side wall of the hook body of the connecting elastic buckle 17 and close to the positioning elastic buckle 52, and the outer side wall of the hook body of the positioning elastic buckle 52 and close to the connecting elastic buckle 17 are respectively provided with an inclined guide surface 521, and the inclined guide surfaces 521 positioned on the connecting elastic buckle 17 and the inclined guide surfaces 521 positioned on the positioning elastic buckle 52 are mutually parallel; so that the connecting elastic buckle 17 can be buckled into the positioning elastic buckle 52 only by rotating the nozzle carrier 1, and the installation efficiency between the wiper arm nozzle and the outer cover 5 is improved.

Referring to fig. 8 and 9, a locking block 53 is integrally formed on the inner side of the outer cover 5, the locking block 53 is positioned between the mounting block 51 and the positioning elastic buckle 52, a locking groove 18 is formed on the nozzle carrier 1 between the plugging block 16 and the connecting elastic buckle 17, and the locking block 53 is plugged into the nozzle carrier 1 through the locking groove 18; the two opposite sides of the locking block 53, which are close to one end of the groove bottom of the locking groove 18, are provided with the guide-in surfaces 531, and the two guide-in surfaces 531 extend from one end of the locking block 53, which is close to the groove bottom of the locking groove 18, in a direction away from each other, so that the limiting block 4 is clamped into the limiting groove 15 more smoothly; when the nozzle carrier 1 is rotated, the locking block 53 is first locked into the locking groove 18, so as to limit the accuracy of the rotation direction of the nozzle carrier 1, and further make the connection elastic buckle 17 buckle to the positioning elastic buckle 52 more accurate.

The implementation principle of the mounting structure of the nozzle of the wiper arm provided by the embodiment of the utility model is as follows: when the wiper arm nozzle and the wiper arm 102 are required to be installed, firstly, the primary positioning block 2 is clamped into the positioning groove 11, and then the nozzle carrier 1 is rotated until the elastic clamping buckle 13 is buckled into the clamping hole 3; when the wiper arm nozzle and the wiper arm 102 need to be disassembled, the wiper arm nozzle can be directly pulled out from the wiper arm 102 after the hook body of the elastic clamping buckle 13 is directly stirred.

When the wiper arm nozzle and the outer cover 5 are required to be installed, firstly, the plug-in block 16 is inserted into the plug-in hole 511, and then the nozzle carrier 1 is rotated until the connecting elastic buckle 17 is clamped on the positioning elastic buckle 52; when the wiper arm nozzle and the outer cover 5 need to be disassembled, the wiper arm nozzle can be directly separated from the outer cover 5 after the hook body of the connecting elastic buckle 17 or the positioning elastic buckle 52 is directly stirred.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The utility model provides a windscreen wiper arm nozzle mounting structure which is characterized in that, including be used for connecting in advance in nozzle carrier (1) of nozzle body (101), be used for connecting in advance in windscreen wiper arm (102) initial positioning piece (2) and be used for connecting in advance in windscreen wiper arm (102) stopper (4), the rear end of nozzle carrier (1) is provided with elasticity screens knot (13), elasticity screens knot (13) are used for with offer screens hole (3) in windscreen wiper arm (102) of cooperation nozzle body (101); the front end of the nozzle carrier (1) is provided with a positioning groove (11), and the primary positioning block (2) is clamped on the nozzle carrier (1) through the positioning groove (11); the limiting block (4) is positioned at the position between the elastic clamping buckle (13) and the primary positioning block (2), and the nozzle carrier (1) is provided with a limiting groove (15) for clamping the limiting block (4).

2. A wiper arm nozzle mounting structure according to claim 1, wherein the preliminary positioning block (2) comprises: an insertion part (21) and a pair of limit parts (22), wherein the insertion part (21) is used for being connected to a wiper arm (102) in advance, and the two limit parts (22) are respectively arranged at two sides of the insertion part (21); the positioning groove (11) extends towards the length direction of the nozzle body (101), and clamping grooves (12) for clamping the limiting parts (22) are formed in the opposite side walls of the positioning groove (11).

3. The wiper arm nozzle mounting structure according to claim 1, wherein two opposite sides of one end of the limiting block (4) close to the bottom of the limiting groove (15) are respectively provided with an inclined surface (41), and the two inclined surfaces (41) extend from one end of the limiting block (4) close to the bottom of the limiting groove (15) in a direction away from each other.

4. A wiper arm nozzle mounting structure according to claim 1, wherein the outer side wall of the hook body of the elastic snap fastener (13) is provided with a guide surface (131) near the front end side of the nozzle carrier (1).

5. A wiper arm nozzle mounting structure according to claim 1 or 2, characterized in that the nozzle carrier (1) is provided with an elastic piece (14) at a side where the elastic snap button (13) is provided, said elastic piece (14) being adapted to abut against the wiper arm (102) of the mating nozzle body (101).

6. The wiper arm nozzle mounting structure according to claim 1, further comprising: the outer cover (5), the inner side of the outer cover (5) is provided with a mounting block (51) corresponding to the front end position of the nozzle carrier (1), the front end position of the nozzle carrier (1) is provided with an inserting block (16), and the mounting block (51) is provided with an inserting hole (511) for inserting the inserting block (16); the nozzle carrier is characterized in that a connecting elastic buckle (17) is arranged at the rear end position of the nozzle carrier (1), a positioning elastic buckle (52) is arranged at the inner side of the outer cover (5) corresponding to the position of the connecting elastic buckle (17), and the connecting elastic buckle (17) is connected with the positioning elastic buckle (52) in a buckling mode.

7. The wiper arm nozzle mounting structure according to claim 6, wherein a locking block (53) is mounted on the inner side of the outer cover (5), the locking block (53) is located at a position between the mounting block (51) and the positioning elastic buckle (52), and the nozzle carrier (1) is provided with a locking groove (18) into which the locking block (53) is clamped.

8. The wiper arm nozzle mounting structure according to claim 7, wherein the opposite sides of the end of the catch block (53) near the bottom of the catch groove (18) are provided with guide-in surfaces (531), and the two guide-in surfaces (531) extend in directions away from each other from the end of the catch block (53) near the bottom of the catch groove (18).

9. The mounting structure of a wiper arm nozzle according to claim 6, wherein the outer side wall of the hook of the connecting elastic buckle (17) and the outer side wall of the hook of the positioning elastic buckle (52) and the outer side wall of the hook of the connecting elastic buckle (17) are respectively provided with an inclined guide surface (521).

10. A wiper arm nozzle mounting structure according to claim 6, wherein the plug block (16) is provided with a smooth surface (161) at one side of the plug block which is far from one end of the nozzle carrier (1) and is close to the inner side wall of the outer cover (5).