CN213606162U - Broom - Google Patents

Abstract

The utility model is suitable for a house cleaning field provides a broom, including cleaning head, broom handle and coupling assembling, coupling assembling includes connecting block and connecting axle, the connecting block connect the cleaning head and the connecting axle connect the broom handle or the connecting block connect the broom handle and the connecting axle connect the cleaning head; the cleaning head has a forward cleaning direction, the axial direction of the connecting shaft is parallel to the cleaning direction of the cleaning head, the connecting block is of an open ring structure and has elasticity, and the connecting shaft can be buckled in from the ring opening of the connecting block and can rotate relatively under the action of external force in an interference fit mode with the connecting block. The utility model provides a broom sets up the rotation that realizes broom handle and cleaning head through the cooperation of connecting block and connecting axle and connects, and the connecting block is the split ring, and its assembly that can accomplish the broom with the operation of connecting axle lock effectively improves the convenience of assembly.

Description

Broom

Technical Field

The utility model belongs to the clean field of house especially relates to a broom.

Background

The broom comprises a sweeping head and a sweeping handle, wherein the brush hair or the brush plate is arranged on the sweeping head, and the sweeping head is fixedly connected or in threaded connection with the sweeping handle. The cleaning head is connected with the cleaning handle through a detachable thread, so that the cleaning head and the cleaning handle can be conveniently carried. When the cleaning machine is used, the cleaning head and the cleaning handle are relatively fixed in position and cannot rotate relatively. In some narrow cleaning spaces, because the cleaning head and the cleaning handle are fixed, it is difficult to ensure that the brush hair or the brush board of the cleaning head is in a contact state vertical to the ground when cleaning, thereby affecting the cleaning effect. And for the scheme that the cleaning head and the cleaning handle are partially connected in a rotating manner, the problems of complex structure, inconvenience in assembly and the like exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a broom, its convenience that aims at realizing that the rotation of cleaning head and broom handle is connected and is improved the assembly.

A broom comprises a sweeping head, a sweeping handle and a connecting assembly, wherein the connecting assembly comprises a connecting block and a connecting shaft, the connecting block is connected with the sweeping head, the connecting shaft is connected with the sweeping handle, or the connecting block is connected with the sweeping handle, and the connecting shaft is connected with the sweeping head;

the cleaning head has a forward cleaning direction, the axial direction of the connecting shaft is parallel to the cleaning direction of the cleaning head, the connecting block is of an open ring structure and has elasticity, and the connecting shaft can be buckled in from the ring opening of the connecting block and can rotate relatively under the action of external force in an interference fit mode with the connecting block.

Optionally, the length of the cross section of the inner ring surface of the connecting block accounts for the perimeter of the connecting shaft [60/360-80/360 ].

Optionally, the length of the cross section of the inner ring surface of the connecting block accounts for the perimeter of the connecting shaft [65/360-75/360 ].

Optionally, the ratio of the axial length of the connecting shaft to the diameter of the sweeping handle is as follows: 1/2-2/3.

Optionally, the connecting block has two guide surfaces located on two sides of the ring opening and connected with the outer ring surface and the inner ring surface of the connecting block, and an extension line of the two guide surfaces on the cross section intersects with an axis of the connecting shaft.

Optionally, the broom further comprises a decoration piece, and a fixing hole for fixing the decoration piece is formed in the side surface of the connecting shaft in the axial direction.

Optionally, the decoration comprises a decoration part and a clamping part;

the fixing hole is provided with a first hole section and a second hole section which are communicated, the clamping portion penetrates through the first hole section and is connected with the second hole section in a matched mode, and the diameter of the second hole section is larger than that of the first hole section to form a supporting surface which limits the clamping portion to leave the first hole section.

Optionally, the decoration still includes the edge the connecting rod that the connecting axle axis extends, the connecting rod both ends connect respectively decoration portion with joint portion, the cross sectional dimension of connecting rod is less than joint portion, the cross sectional dimension of joint portion is less than decoration portion.

Optionally, the two decorating parts are oppositely arranged, and the distance between the two decorating parts is smaller than the distance between the two surfaces of the connecting block in the axial direction.

Optionally, the sweeping handle comprises a first handle section and a second handle section which are arranged up and down, and the connecting shaft is arranged on the second handle section;

the broom further comprises an elastic part and a limiting part, wherein the two ends of the elastic part are respectively connected with the first handle section and the second handle section and can enable the first handle section and the second handle section to be parallel to the length direction of the sweeping head as rotation axis elastic bending, the limiting part is cylindrical and comprises a pressing part and an avoiding groove, the pressing part is connected with the first handle section and extends to the outer side of the second handle section, the avoiding groove is formed by the two circumferential sides of the pressing part, the pressing part is used for limiting the sweeping head to rotate towards the first direction, the avoiding groove is used for avoiding the sweeping head to rotate towards the second direction, and the first direction and the second direction are reversely arranged and perpendicular to the axial direction of the sweeping handle and perpendicular to the length direction of the sweeping head.

Optionally, the elastic member is a coil spring.

The application provides a broom sets up the rotation that realizes broom handle and cleaning head through the cooperation of connecting block and connecting axle and connects, and the connecting block is the split ring, and its assembly that can accomplish the broom with the operation of connecting axle lock effectively improves the convenience of assembly.

Drawings

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

Fig. 1 is a first schematic structural diagram of a broom according to an embodiment of the present application;

FIG. 2 is a disassembled schematic view of the structure of FIG. 1;

FIG. 3 is a first cross-sectional view of the structure of FIG. 1;

FIG. 4 is a second cross-sectional view of the structure of FIG. 1;

FIG. 5 is a schematic view of the structure of the garnish in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a broom according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Cleaning head	40	Decoration piece
20	Broom handle	41	Decorative part
				21	First handle segment	42	Clamping part
22	Second handle section	43	Connecting rod
				30	Connecting assembly	44	Positioning strip
31	Connecting block	50	Elastic piece
				32	Connecting shaft	60	Position limiting piece
321	Fixing hole

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship as shown in the drawings for convenience in describing the present application and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 6, a broom provided by the present application is now illustrated. The broom comprises a cleaning head 10, a broom handle 20 and a connecting assembly 30. The connecting assembly 30 comprises a connecting block 31 and a connecting shaft 32, wherein the connecting block 31 is connected with the cleaning head 10, the connecting shaft 32 is connected with the cleaning handle 20, or the connecting block 31 is connected with the cleaning handle 20, and the connecting shaft 32 is connected with the cleaning head 10. In the illustrated embodiment, the connecting block 31 is integral with the cleaning head 10 and the connecting shaft 32 is integral with the handle 20.

The cleaning head 10 has a forward cleaning direction. It will be understood by those skilled in the art that the cleaning direction of the cleaning head 10 is perpendicular to the longitudinal direction of the cleaning head 10, and in the figures, the longitudinal direction of the cleaning head 10 is the Y-axis direction, and the cleaning direction of the cleaning head 10 is the positive or negative X-axis direction.

The axial direction of the connecting shaft 32 is parallel to the cleaning direction of the cleaning head 10, namely the X-axis direction, the connecting block 31 is of an open ring structure and has elasticity, and the connecting shaft 32 can be buckled from the ring opening of the connecting block 31, is in interference fit with the connecting block 31 and can rotate relatively under the action of external force.

In the figure, the axial direction of the cleaning handle 20 is the Z-axis direction, and the longitudinal direction of the cleaning head 10 is the Y-axis direction. It will be understood by those skilled in the art that the cleaning direction of the broom is perpendicular to the length direction of the cleaning head 10, and is the X-axis direction, which may be the positive direction along the X-axis or the negative direction along the X-axis. The connecting block 31 is rotatably connected with the connecting shaft 32, and the rotation axis is the axial direction of the connecting shaft 32. The axial direction of the connecting shaft 32 is perpendicular to the length direction of the cleaning head 10, and the axial direction of the connecting shaft 32 is the X-axis direction, in other words, the sweeping handle 20 can rotate around the X-axis direction on the YZ plane, and the included angle between the sweeping handle 20 and the cleaning head 10 on the YZ plane is adjusted, so that the cleaning head can be applied to a relatively narrow cleaning space. Specifically, on a floor surface with a limited cleaning height (Z-axis direction), such as a floor surface under a table, the cleaning handle 20 can be rotated to allow the cleaning head 10 to extend under the table and perform cleaning operation in a state of being perpendicular to the floor surface; in the case of a ground surface with a limited cleaning range (X-axis direction), such as a short space between two cabinets, the cleaning handle 20 can be rotated to allow the cleaning head 10 to enter between the two cabinets for cleaning without an operator entering between the two cabinets.

The rotary connection between the sweeper handle 20 and the sweeper head 10 is realized through the cooperation of the connecting shaft 32 and the connecting block 31. Specifically, the connecting shaft 32 is fixedly connected with the sweeping handle 20/the sweeping head 10, the connecting block 31 is fixedly connected with the sweeping head 10/the sweeping handle 20, and the connecting shaft 32 is rotatably connected with the connecting block 31 so as to realize the rotary connection of the sweeping handle 20 and the sweeping head 10. The connecting shaft 32 is a cylindrical shaft structure, the connecting block 31 is an open ring structure, and the inner ring surface of the connecting block is in interference fit with the connecting shaft 32, so that when the connecting shaft 32 is in fit connection with the connecting block 31, the connecting block is maintained in a relatively fixed state under the action of non-external force, and cleaning operation is performed. When the angle between the cleaning handle 20 and the cleaning head 10 needs to be adjusted, an operator applies an external force to the cleaning handle 20 to drive the cleaning handle to rotate, so that the connecting shaft 32 and the connecting block 31 rotate relatively, the angle between the cleaning handle 20 and the cleaning head 10 is changed accordingly, and the adjusted relative position is maintained after the external force disappears.

The connecting block 31 has certain elasticity, the connecting block 31 is of an open ring structure, and the connecting shaft 32 can enter an accommodating space formed by surrounding of the inner ring surface of the connecting block 31 from the ring opening of the connecting block 31 and is rotatably connected with the connecting block 31. The operation is very convenient. In the process that the connecting shaft 32 enters the accommodating space from the annular opening, the connecting block 31 elastically deforms to enable the annular opening to be enlarged so that the connecting shaft 32 can pass through, and the annular opening is reduced under the action of elastic restoring force after the connecting shaft 32 passes through to limit the connecting shaft 32 from leaving the accommodating space.

By last, the broom that this embodiment provided sets up the rotation that realizes broom handle 20 and cleaning head 10 through the cooperation of connecting block 31 and connecting axle 32 and is connected, and connecting block 31 is the split ring, and it can accomplish the assembly of broom with the operation of connecting axle 32 lock, effectively improves the convenience of assembly.

In another embodiment of the present application, referring to fig. 4, the length of the inner annular surface of the connecting block 31 in cross section is [60/360-80/360] of the circumference of the connecting shaft 32. As can be understood by those skilled in the art, the larger the range of the connecting shaft 32 covered by the inner annular surface of the connecting block 31 is, the smaller the annular opening of the connecting block 31 is, and the less easily the connecting shaft 32 is separated from the accommodating space of the connecting block 31. Correspondingly, the more difficult the connecting shaft 32 is to be buckled into the accommodating space from the ring opening. In addition, the annular opening of the connecting block 31 is not easy to be too small so as to avoid the risk of fracture caused by too large deformation exceeding the elastic range of the structure when the connecting block 31 is flared. Through a plurality of experiments, when the circumferential interval range of the connecting shaft 32[60/360-80/360] is covered on the inner ring surface of the connecting block 31, the connecting shaft 32 is not easy to be separated from the accommodating space in normal cleaning operation, and the situation that the connecting block 31 is broken can be avoided. In combination with the illustration, included angle A is in the range of 60 to 80.

Preferably, the length of the inner ring surface of the connecting block 31 in the cross section is [65/360-75/360] of the circumference of the connecting shaft 32. The angle of the included angle a may be preferably 65 °, 66 °, 68 °, 70 °, 71 °, 73 °, 74 °, 75 °, etc., and is not limited herein.

In another embodiment of the present application, referring to fig. 4, the connecting block 31 has two guide surfaces located on both sides of the ring opening and connecting the outer ring surface and the inner ring surface, and the extension line of the two guide surfaces in cross section intersects with the axis of the connecting shaft 32. The guide surface is provided obliquely inward and extends in the radial direction of the connecting shaft 32 in cross section. This arrangement facilitates the assembly operation of guiding the connecting shaft 32 to be buckled into the accommodating space, improving the convenience of operation.

In another embodiment of the present application, referring to fig. 2, the broom further includes a decoration 40, and the connecting shaft 32 is provided with a fixing hole 321 on an axial side surface thereof for fixing the decoration 40. Currently, most of the decorations for the broom are designed into an annular structure and sleeved on the broom. In this embodiment, the decoration 40 is disposed at the connecting shaft 32, and the decoration 40 is fixed by forming the fixing hole 321. In this embodiment, the decoration 40 has a block structure, and is assembled by pressing the fixing hole 321, so that the operation is convenient, and the effect of beautifying the appearance is achieved.

Needless to say, the outer diameter of the coupling shaft 32 is larger than the diameter of the fixing hole 321. Preferably, the projection of coupling shaft 32 in its radial plane can cover the projection of trim piece 40 in this plane. As shown in the figure, the projection area of the link shaft 32 on the YZ plane is larger than the projection area of the garnish 40 on the YZ plane. In combination, the garnish 40 includes the decoration portion 41, the connecting rod 43, and the catching portion 42, and generally, the projection (cross-sectional area) of the decoration portion 41 on the YZ plane is larger than the connecting rod 43/the catching portion 42 to beautify the appearance. And in order to improve the connection stability of the decoration portion 41 and the connection shaft 32, it can be realized by properly increasing the radial dimension of the connection rod 43/the clamping portion 42 and cooperating with the fixing hole 321. On the one hand, the outer diameter of the connecting shaft 32 increases as the diameter of the fixing hole 321 increases. On the other hand, the connecting shaft 32, in addition to the function of fixing the decoration part 41 through the fixing hole 321, needs to cooperate with the connecting block 31 to realize the rotational connection of the cleaning handle 20 and the cleaning head 10, and therefore, the connecting shaft 32 needs to satisfy the structural strength requirement. Under the condition that the aperture of the fixing hole 321 is fixed, increasing the outer diameter of the connecting shaft 32 can effectively enhance the structural strength of the connecting shaft 32. In combination with industrial design, the radial dimension of the connecting shaft 32 is larger than the projection of the decoration part 41 on the plane, so that the connection stability of the decoration part 41 and the connecting shaft 32 can be improved, and the strength of the connecting shaft 32 can be guaranteed.

In addition, it should be noted that, in the case where the cross section of the connecting shaft 32 is increased to ensure the strength of the connecting shaft 32 itself, the connecting portion of the connecting shaft 32 and the sweeper handle 20 is a stress concentration region. Further increases in the diameter of the connection shaft 32 do not significantly increase the stress concentration at the connection. And the stress concentration can be improved by increasing the thickness of the sweep handle 20 at both ends of the connecting shaft 32. In the case where the length of the sweep handle 20 in the axial direction of the connecting shaft 32 is fixed, the thickness of the sweep handle 20 can be increased by shortening the length of the connecting shaft 32. Preferably, the ratio of the axial length of the connecting shaft 32 to the length of the sweep handle 20 in this direction is: 1/2-2/3. The length of the sweeper handle 20 in this direction is the radial diameter of the sweeper handle 20 itself.

In another embodiment of the present application, please refer to fig. 3 and 5, the decoration 40 includes a decoration portion 41 and a snap portion 42;

the fixing hole 321 has a first hole section and a second hole section which are communicated with each other, the clamping portion 42 penetrates through the first hole section to be connected with the second hole section in a matching manner, and the diameter of the second hole section is larger than that of the first hole section to form a supporting surface which limits the clamping portion 42 to leave the first hole section.

In the process of pressing the decoration 40 into the fixing hole 321, the clamping portion 42 penetrates through the first hole section to reach the second hole section, and is clamped with the second hole section when reaching the second hole section (the clamping portion 42 is limited by the abutting surface to move reversely to leave the second hole section), so that the decoration 40 is fastened with the fixing hole 321, and the risk that the decoration 40 is separated from the fixing hole 321 is reduced. In the illustrated structure, the circumferential side of the snap-in portion 42 is tapered in a direction away from the decorative portion 41 to reduce the difficulty of assembling the decoration 40 into the fixing hole 321.

In another embodiment of the present application, referring to fig. 5, the decoration element 40 further includes a connecting rod 43 extending along the axis of the connecting shaft 32, two ends of the connecting rod 43 are respectively connected to the decoration portion 41 and the clamping portion 42, a cross-sectional dimension of the connecting rod 43 is smaller than that of the clamping portion 42, and a cross-sectional dimension of the clamping portion 42 is smaller than that of the decoration portion 41.

The cross-sectional dimension of the engaging portion 42 is larger than that of the connecting rod 43 to form an engaging surface abutting against the abutting surface. In addition, the cross-sectional size of the connecting rod 43 is smaller than that of the clamping portion 42, so that the surface area of the decorating part 40 contacting with the fixing hole 321 in the process of pressing the decorating part into the fixing hole 321 is reduced, and the installation difficulty is reduced.

Referring to fig. 3, two decorative pieces 40 are oppositely disposed, and correspondingly, fixing holes 321 are respectively formed on two side surfaces of the connecting shaft 32 in the axial direction. The distance between the two ornamental pieces 40 is smaller than the distance between the joint block 31 on both axial side surfaces thereof.

The two sides of the connecting shaft 32 are connected with the sweeping handle 20 through connecting pieces. The connecting member has a height to form an assembly space together with the connecting shaft 32 for avoiding the connecting block 31 from being inserted into the connecting shaft 32 and rotating. When the connecting shaft 32 is connected with the connecting block 31 in a matching manner, the connecting position of the connecting shaft 32 and the connecting piece is a stress concentration position. The decoration 40 is a block structure and extends into the fixing hole 321, and bears a force from the connection block 31 together with the connection shaft 32. Since the distance between the two decorative members 40 (the distance between the two opposite surfaces) is smaller than the distance between the two sides of the connecting block 31 in the axial direction (the dimension in the X-axis direction), the load applied to the decorative member 40 from the connecting block 31 can be transmitted to the connecting member via the decorative member 40, thereby reducing the internal stress at the connecting position of the connecting shaft 32 and the adaptor member to improve the service life of the connecting member 30.

In another embodiment of the present application, referring to fig. 5, the decoration 40 further includes a positioning strip 44 disposed on the connecting rod 43, the connecting shaft 32 is provided with a positioning slot matched with the positioning strip 44, and the positioning slot is communicated with the fixing hole 321. The decorative portion 41 may be provided with a logo or decorative pattern, and the cooperation of the positioning strip 44 and the positioning groove limits the rotation of the decorative element 40 to ensure that the logo or decorative pattern is presented at a designed display angle. In other embodiments, ornamental piece 40 may be designed with an irregular shape in cross-section to ensure that ornamental piece 40 is positioned within fixation hole 321 at a particular angle.

In another embodiment of the present application, referring to fig. 6, the sweep handle 20 includes a first handle segment 21 and a second handle segment 22 disposed above and below, and the connecting shaft 32 is disposed on the second handle segment 22.

The broom further comprises an elastic member 50 and a retaining member 60. The elastic member 50 is connected to the first handle section 21 and the second handle section 22 at two ends thereof, and enables the first handle section 21 and the second handle section 22 to be elastically bent (capable of being elastically bent under an external force and being restored after the external force disappears) with a direction parallel to the length direction of the cleaning head 10 as a rotation axis. In the illustration, the elastic member 50 is elastically bendable in the XZ plane about the Y-axis direction.

The limiting member 60 is cylindrical and includes a pressing portion connected to the first handle section 21 and extending to the outside of the second handle section 22, and an avoiding groove formed on two sides of the pressing portion in the circumferential direction, the pressing portion is used for limiting the cleaning head 10 to rotate in the first direction, the avoiding groove is used for avoiding the cleaning head 10 to rotate in the second direction, and the first direction and the second direction are arranged in opposite directions and are perpendicular to the axial direction of the cleaning handle 20 and the length direction of the cleaning head 10. In the figure, the first direction is a positive X-axis direction, and the second direction is a negative X-axis direction.

Due to the arrangement of the elastic part 50 and the limiting part 60, the broom can have at least two different cleaning forces under the same thrust action of an operator, so that the applicability of the broom is improved. Specifically, when the operator applies a first pushing force in the positive direction of the X-axis to the first handle segment 21, the second handle segment 22 rotates at a certain angle relative to the first handle segment 21, and the elastic member 50 elastically bends to counteract a part of the first pushing force, so that a second pushing force transmitted to the second handle segment 22 and the cleaning head 10 is smaller than the first pushing force. In other words, the provision of the elastic member 50 can reduce the cleaning force of the broom and can be applied to cleaning of light-weight particulate dust. When an operator applies a first thrust to the negative direction of the X axis to the first handle section 21, the limiting part 60 limits the relative rotation of the first handle section 21 and the second handle section 22, the maximum number of the first thrust can be transmitted to the lower handle section and the cleaning head 10, and the second thrust applied to the cleaning head 10 is equal to the first thrust, so that the cleaning force is guaranteed to be suitable for cleaning heavier particles. From above, the shape design through locating part 60 realizes spacing and the effect of dodging, is favorable to simplifying the structure.

The height of the second handle section 22 is not limited, in other words, the rotational connection point of the cleaning handle 20 and the cleaning head 10 (the position of the elastic member 50 in this embodiment) can be close to the cleaning head 10 or a distance from the cleaning head 10.

Preferably, the elastic member 50 is a coil spring. It should be noted that the elastic member 50 is a coil spring, and the bending elasticity thereof is used instead of the axial elasticity thereof. In other embodiments, the elastic member 50 may also have other structures with bending elasticity, and is not limited herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims (10)

1. A broom is characterized by comprising a sweeping head, a sweeping handle and a connecting assembly, wherein the connecting assembly comprises a connecting block and a connecting shaft, the connecting block is connected with the sweeping head, the connecting shaft is connected with the sweeping handle, or the connecting block is connected with the sweeping handle, and the connecting shaft is connected with the sweeping head;

the cleaning head has a forward cleaning direction, the axial direction of the connecting shaft is parallel to the cleaning direction of the cleaning head, the connecting block is of an open ring structure and has elasticity, and the connecting shaft can be buckled in from the ring opening of the connecting block and can rotate relatively under the action of external force in an interference fit mode with the connecting block.

2. The broom of claim 1, wherein the length of the inner annular surface of the attachment block in cross-section is defined as the perimeter of the attachment shaft [65/360-75/360 ].

3. The broom of claim 1, wherein the ratio of the axial length of the connecting shaft to the diameter of the broom handle is: 1/2-2/3.

4. Broom according to claim 1, in which the connecting piece has two guide surfaces on both sides of its ring mouth, both connecting its outer ring surface and its inner ring surface, the extension of which in cross section intersects the axis of the connecting shaft.

5. The broom of claim 1, further comprising a decoration member, wherein the coupling shaft is provided at an axial side surface thereof with a fixing hole for fixing the decoration member.

6. The broom of claim 5, wherein the decorative member includes a decorative portion and a snap-fit portion;

the fixing hole is provided with a first hole section and a second hole section which are communicated, the clamping portion penetrates through the first hole section and is connected with the second hole section in a matched mode, and the diameter of the second hole section is larger than that of the first hole section to form a supporting surface which limits the clamping portion to leave the first hole section.

7. The broom of claim 6, wherein the decorative member further comprises a connecting rod extending along an axis of the connecting shaft, the connecting rod is connected at two ends thereof to the decorative portion and the clamping portion, respectively, the connecting rod has a cross-sectional dimension smaller than that of the clamping portion, and the clamping portion has a cross-sectional dimension smaller than that of the decorative portion.

8. The broom of claim 7, wherein the ornamental members are oppositely disposed, and the distance between the ornamental members is smaller than the distance between the attachment blocks on both axial side surfaces thereof.

9. The broom of any one of claims 1 to 8, wherein the broom handle comprises a first handle section and a second handle section arranged up and down, and the connecting shaft is arranged on the second handle section;

the broom further comprises an elastic part and a limiting part, wherein the two ends of the elastic part are respectively connected with the first handle section and the second handle section and can enable the first handle section and the second handle section to be parallel to the length direction of the sweeping head as rotation axis elastic bending, the limiting part is cylindrical and comprises a pressing part and an avoiding groove, the pressing part is connected with the first handle section and extends to the outer side of the second handle section, the avoiding groove is formed by the two circumferential sides of the pressing part, the pressing part is used for limiting the sweeping head to rotate towards the first direction, the avoiding groove is used for avoiding the sweeping head to rotate towards the second direction, and the first direction and the second direction are reversely arranged and perpendicular to the axial direction of the sweeping handle and perpendicular to the length direction of the sweeping head.

10. The broom of claim 9, wherein the resilient member is a coil spring.

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