Blowing and sucking machine

Abstract

The utility model relates to a handheld electric tool, in particular to a blowing and sucking machine. A blowing and sucking machine comprises a handle and a blowing and sucking head located at the top end of the handle, rotating structures matched with each other are arranged between the middle of the blowing and sucking head and the middle of the handle, at least two positioning grooves are formed in the bottom of the blowing and sucking head, and the at least two positioning grooves are annularly arranged at intervals with the rotating structures as the center. A positioning groove is formed in the top of the handle, a positioning protrusion is hinged to the top of the handle, the positioning groove and the positioning protrusion are oppositely located on the outer side of the rotating structure in the circumferential direction, the positioning protrusion is matched with an elastic piece, the positioning protrusion is fixed to one end of a shifting protrusion, and the other end of the shifting protrusion extends towards the side away from the handle. The handle has the advantages of being more convenient to produce and machine, more stable and convenient to use and free of occupying the internal space of the handle.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of handheld electric tools, specifically to a kind of blowing and sucking machine. BACKGROUND

[0002] Patent with application No.202210155260.0 discloses a kind of blowing and sucking machine, including main machine shell, one end of main machine shell is set as suction transition joint, the other end is set as blowing part, suction transition joint is detachably connected with suction part, further including handle connected with main machine shell, handle bottom is provided with battery mounting seat for installing battery pack, rotation structure is arranged between main machine shell and handle, rotation structure is matched with rotation locking structure.

[0003] Rotation locking structure includes rotation locking connecting rod and reset elastic piece, rotation locking connecting rod is arranged in the top plate of handle along the front and back direction of handle, the upper side of rotation locking connecting rod is provided with self-locking boss, the top plate of handle is provided with two symmetrical and concentric rotation grooves, the middle part of each rotation groove is provided with self-locking clamping port extending along the radial direction of rotation structure. After completing rotation, under the action of reset elastic piece, self-locking boss is clamped into self-locking clamping port, so as to limit the relative rotation between main machine shell and handle.

[0004] The above scheme has the following defects: (1) production and processing precision requirement is higher, need to ensure that the concentricity of each rotation groove, need to ensure that the extension direction of the front and back two self-locking openings is same, need to ensure that the shape and size of the self-locking boss at both ends of rotation locking connecting rod is same, and the coaxial precision and shaking between main machine shell and handle is higher, otherwise, self-locking protrusion will be difficult to enter from the side of rotation groove, self-locking protrusion side and rotation groove excessive contact will generate larger friction, self-locking protrusion will be difficult to enter self-locking clamping port, and other influence use conditions; (2) rotation locking connecting rod and self-locking elastic piece are arranged in the interior of handle, so that assembly is more troublesome, and the rotation structure suitable for is less. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of blowing and sucking machine, which is more convenient for production and processing, more stable during use, and does not occupy the internal space of handle.

[0006] In order to achieve the above object, the utility model discloses a kind of blowing and sucking machine, including handle and the blowing and sucking head at the top of handle, rotating structure is equipped with in the middle of blowing and sucking head and the middle of handle, the bottom of blowing and sucking head is equipped with at least two positioning grooves, at least two positioning grooves are annularly spaced apart with the rotating structure as center, the top of handle is hingedly connected with positioning protrusion, the positioning groove and positioning protrusion are all located relative to the circumferential outside of rotating structure, the positioning protrusion is matched with elastic member, one end of positioning protrusion is fixed with the pushing protrusion, the other end of pushing protrusion extends away from handle side;When the positioning protrusion is up and down corresponding with positioning groove, the upper end of positioning protrusion is inserted into corresponding positioning groove to realize the positioning between handle and blowing and sucking head under the action of elastic member;When pushing protrusion is stressed and overcomes the elastic force of elastic member and drives the upper end of positioning protrusion to separate from positioning groove, the locking between handle and blowing and sucking head is released.

[0007] The utility model cancels the complex rotating groove structure mentioned in the background art, and the positioning protrusion is also moved downward into the positioning groove. The positioning protrusion is arranged in a more outer region, and the processing requirement and assembly requirement are lower, and the production and processing are more convenient. During assembly, only the hinging of the positioning protrusion and the handle is needed, then the rotating connection of the blowing and sucking head and the handle is needed, and the positioning groove and the positioning protrusion are aligned, so that the assembly steps are simpler.

[0008] During use, the user can directly push the positioning protrusion to drive the positioning protrusion to separate from the positioning groove, so that the handle and the blowing and sucking head are unlocked. The positioning protrusion can be released during the mutual rotation of the blowing and sucking head and the handle. When the positioning protrusion enters another positioning groove, the rotation and locking are completed, which is more convenient.

[0009] Meanwhile, the positioning protrusion and the positioning groove of the utility model are not arranged between rotating structures, are not limited by the space at the upper end of the handle, and are not limited by the specific structure of the rotating structure. The arrangement of the positioning protrusion and the positioning groove of the utility model does not affect the coaxiality of the rotating structure, can avoid the shaking between the blowing and sucking head and the handle as much as possible, and is suitable for more types of blowing and sucking machines. The number of positioning grooves can be set according to actual needs. For example, when the blowing and washing head needs to be rotated by 90°, three or four positioning grooves can be arranged. When the blowing and washing head only needs to be rotated by 180°, only two positioning grooves can be arranged.

[0010] As preferred, the handle has a matching part extending to the circumferential outside, the outer end of the matching part is provided with a lateral opening accommodation groove, and the pushing protrusion is matched in the accommodation groove.

[0011] The lateral extending matching part can make the positioning protrusion and the positioning groove farther away from the rotating structure, and the matching part can lower limit support the positioning protrusion and the elastic piece, so that the use stability is ensured. The giving way groove at the end of the matching part can guide the positioning protrusion, avoid left and right shaking of the positioning protrusion, and make the setting positions of the positioning protrusion, the poking protrusion and the matching part coincide with each other, so that the positioning protrusion and other parts do not occupy too much space, and the negative influence on the use of the start-stop switch on the handle can be avoided as much as possible.

[0012] As preferred, one end of the poking protrusion connected with the positioning protrusion is always located in the giving way groove, the outer end of the poking protrusion extends out of the giving way groove and has a downward extending guide protrusion, the inner side surface of the guide protrusion and the outer side surface of the matching part are mutually matched arc surfaces, and the moving track of the positioning protrusion is parallel or coplanar with the arc surfaces.

[0013] By setting the mutually matched arc surfaces, the movement of the positioning protrusion and the poking protrusion can be further guided, and the stability during use of the utility model is improved.

[0014] As preferred, the matching part has an upward opening lower matching groove, the positioning protrusion has a downward opening upper matching groove, the elastic piece is a compression spring, and the upper and lower ends of the elastic piece are matched in the upper matching groove and the lower matching groove respectively.

[0015] The above setting can make the space occupied by the setting position of the elastic piece smaller, facilitate the setting of the giving way groove, and avoid the negative influence on the use of the start-stop switch on the handle as much as possible.

[0016] As preferred, the length of the positioning groove along the radial direction of the rotating structure is greater than the height of the positioning groove along the up-down direction. By the above setting, the contact surface of the positioning protrusion and the matching groove is made larger as much as possible, and the stability during use is ensured.

[0017] The utility model has the advantages of convenient production and processing, stable and convenient use, and no occupation of the internal space of the handle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the handle and the blowing and sucking head connection of the utility model.

[0019] Figure 2 It is a sectional view of the positioning protrusion and the positioning groove of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be further described below according to the drawings and specific embodiments.

[0021] By Figure 1 And Figure 2As shown, this embodiment discloses a blow-suction machine, including a handle 100 and a blow-suction head 200 located at the top of the handle 100. A rotating structure 300 that cooperates with each other is provided between the middle of the blow-suction head 200 and the middle of the handle 100. In this embodiment, any existing rotating structure that allows the blow-suction head to rotate 180° relative to the handle can be used between the middle of the blow-suction head 200 and the middle of the handle 100.

[0022] The blow-suction head 200 has two symmetrically arranged positioning grooves 11 at its bottom. The top of the handle 100 is hinged with a positioning protrusion 21. Both the positioning grooves 11 and the positioning protrusion 21 are located on the outer side of the rotating structure 300. The positioning protrusion 21 is equipped with an elastic element 22. The front end of the positioning protrusion 21 is fixed to the rear end of the actuating protrusion 23, and the front end of the actuating protrusion 23 extends forward. The radial length of the positioning groove 11 along the rotating structure 300 is greater than the vertical height of the positioning groove 11.

[0023] The handle 100 has a front-extending mating part 10 at its upper end. The front end of the mating part 10 has a forward-opening relief groove, and the actuating protrusion 23 is fitted into the relief groove 101. The end of the actuating protrusion 23 connected to the positioning protrusion 21 is always located in the relief groove 101. The front end of the actuating protrusion 23 extends outside the relief groove and has a downward-extending guide protrusion 24. The inner side (rear side) of the guide protrusion 24 and the outer side (front side) of the mating part 10 are mutually mating arc surfaces, and the movement trajectory of the positioning protrusion 21 is parallel to the arc surface.

[0024] The mating part 10 has an upward-opening lower mating groove 102, the positioning protrusion 21 has a downward-opening upper mating groove 211, the elastic element 22 is a compression spring, and the upper and lower ends of the elastic element 22 are respectively mated in the upper mating groove 211 and the lower mating groove 102.

[0025] When the positioning protrusion 21 corresponds vertically to the positioning groove 11, the upper end of the positioning protrusion 21 extends into the corresponding positioning groove 11 under the action of the elastic element 22 to achieve positioning and locking between the handle 100 and the blow-suction head 200; when the protrusion 23 is pushed down by force, it will overcome the elastic force of the elastic element 22 and drive the upper end of the positioning protrusion 21 to disengage from the positioning groove, thereby releasing the lock between the handle 100 and the blow-suction head 200.

[0026] This invention has the advantages of being more convenient to manufacture and process, more stable and convenient to use, and not taking up internal space in the handle.

Claims

1. A blower-suction machine comprising a handle and a blower-suction head at the top end of the handle, a middle part of the blower-suction head and a middle part of the handle being provided with mutually cooperating rotating structures, characterized in that: The bottom of the blowing and sucking head is provided with at least two positioning grooves which are arranged in a ring shape and are spaced apart with the rotating structure as the center, the top of the handle is hingedly connected with a positioning protrusion, the positioning grooves and the positioning protrusion are located opposite to each other on the circumferential outer side of the rotating structure, the positioning protrusion is matched with an elastic member, one end of the positioning protrusion is fixed with a pushing protrusion, and the other end of the pushing protrusion extends away from the handle; When the positioning protrusion corresponds to the positioning groove up and down, the upper end of the positioning protrusion extends into the corresponding positioning groove under the action of the elastic member to realize the positioning between the handle and the blowing and sucking head; when the pushing protrusion is forced and the upper end of the positioning protrusion is driven to be separated from the positioning groove by overcoming the elastic force of the elastic member, the locking between the handle and the blowing and sucking head is released.

2. The suction-duster according to claim 1, characterized in that: The handle has a matching part extending to the circumferential outer side, the outer end of the matching part is provided with a lateral opening accommodation groove, and the pushing protrusion is matched in the accommodation groove.

3. The suction-duster according to claim 2, characterized in that: The end of the pushing protrusion connected with the positioning protrusion is always located in the accommodation groove, the outer end of the pushing protrusion extends to the outside of the accommodation groove and has a downward extending guide protrusion, the inner side surface of the guide protrusion and the outer side surface of the matching part are arc surfaces matched with each other, and the moving track of the positioning protrusion is parallel or coplanar with the arc surfaces.

4. The suction-duster according to claim 2, wherein: The matching part has an upward opening lower matching groove, the positioning protrusion has a downward opening upper matching groove, the elastic member is a compression spring, and the upper and lower ends of the elastic member are matched in the upper matching groove and the lower matching groove respectively.

5. The suction-duster according to claim 1, wherein: The length of the positioning groove along the radial direction of the rotating structure is greater than the height of the positioning groove along the up and down direction.

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