CN209712783U - Cleaning tool - Google Patents

Abstract

The utility model discloses a cleaning appliance, which comprises: a broom and a dustpan shovel suitable for matching use, a dirt holding component and a flushing component provided on the dustpan shovel; The plate, the bottom plate and the three side plates jointly form a storage chamber for accommodating garbage; the three side plates surround and form an opening suitable for the entry and exit of garbage; the dirt holding assembly includes a sewage tank located outside the storage chamber, and The top part away from the ground is provided with a water inlet and outlet suitable for water in and out; the broom includes a broom handle, an installation groove connected with the broom handle, and a broom head connected with the installation groove; There is a water distribution pipe; the side of the water distribution pipe facing the broom head is uniformly provided with several water distribution holes; the flushing component includes a clean water tank for storing clean water located outside the containing chamber, a clean water tank arranged outside the clean water tank and connected to the inner cavity of the clean water tank A connected pump, and a water supply pipe connected at one end to the clean water tank.

Description

cleaning tools

technical field

The utility model relates to the technical field of cleaning tools, in particular to a cleaning tool.

Background technique

Tools commonly used when cleaning a home include brooms. In the process of continuous use of the broom, the cleaning effect will be reduced for the dirty broom head, so in order to achieve a better cleaning effect, the broom head needs to be cleaned frequently during cleaning. Generally, the broom head is cleaned with water to clean the broom The purpose of accumulating dust.

The utility model with the patent application number CN201810657320.2 discloses a water-saving and easy-to-clean broom that can clean the broom head with water. The utility model includes a handle with a water guide and storage channel, and a loose, porous and elastic sweeping block , also includes a water guide, a water distributor, a sleeve, a scraper, and a connecting plate; the water guide has a channel for guiding water, and the water guide is inserted into the lower port of the handle and communicated with the handle; the water distributor It has a hollow chamber and an array of water outlet holes. The water guide pipe communicates with the water distributor and is connected to form a ⊥-shaped structure; the mopping block wraps the water distributor; the sleeve fits on the handle and can Slide along the length direction of the handle; the scraper surrounds the outside of the sweeping block, the scraper is made of elastic thin plate, the side shape of the scraper is ∩ shape, and the two scraping edges of the scraper are Close to each other, so that the two scraping edges clamp the mopping block; one end of the connecting plate is connected with the sleeve and the other end is connected with the scraper. The working principle of this utility model is: when cleaning the broom, the clean water in the handle enters the hollow chamber of the water distributor through the water guide pipe, and then enters the sweeping block through the water outlet hole of the water distributor. Sliding reciprocally in the length direction of the blade, the sleeve drives the scraper to move through the connecting plate, so that the scraping edge of the scraper scrapes back and forth against the mopping block, scraping off the dirt on the surface of the mopping block and squeezing out the moisture in the mopping block , the extruded water can take out the dirt in the mopping block. Because the clear water for cleaning the mopping block is stored in the handle of the utility model, the weight of the utility model is much heavier than that of an ordinary broom when it is full of clear water, so the disadvantage of this utility model is that it is not as light as an ordinary broom when cleaning, The problem of extreme inconvenience when causing use.

Utility model content

The purpose of the utility model is to provide a cleaning tool to solve the technical problem of being easy to use and cleaning the broom.

Cleaning appliance of the present utility model is realized in that:

A cleaning appliance, comprising: a broom and a dustpan shovel suitable for matching use, a dirt holding component and a flushing component provided on the dustpan shovel;

The dustpan shovel includes a base plate and three side plates respectively connected to the base plate, the base plate and the three side plates together form a cavity for accommodating garbage; openings for entry and exit;

The dirt holding assembly includes a sewage tank located outside the accommodating cavity, and a water inlet and outlet suitable for water entry and exit is provided at the top of the sewage tank away from the ground;

The broom includes a broom handle, an installation groove connected to the broom handle, and a broom head connected to the installation groove; the inside of the installation groove is provided with a water distribution pipe along the length direction of the installation groove, and the water distribution pipe One end is a closed end, while the other end is an open end; the side of the water distribution pipe facing the broom head is uniformly provided with several water distribution holes;

The flushing assembly includes a clean water tank for storing clean water located outside the accommodation cavity, a pump provided outside the clean water tank and communicated with the inner cavity of the clean water tank, and a water supply pipe with one end communicated with the clean water tank ; The other end of the water supply pipe is suitable for clamping communication with the open end of the water distribution pipe.

In a preferred embodiment of the utility model, the pump communicates with the clean water tank through an air pipe; and

The top of the clean water tank is provided with a water tank cover.

In a preferred embodiment of the utility model, the side end of the installation groove facing the broom head is provided with an insertion slot for installing the broom head;

Fixing holes suitable for passing water distribution pipes are opened on the groove walls at both ends of the installation groove in the length direction; and

The closed end of the water distribution pipe is provided with an external thread portion suitable for being threadedly connected with a mounting nut;

The open end of the water distribution pipe is provided with a shoulder adapted to abut against the fixing hole of the installation groove from the outside of the installation groove.

In a preferred embodiment of the utility model, the cleaning tool further includes a lifting frame assembly;

The lifting frame assembly includes a connecting frame connected to the sewage tank, a guide sleeve provided at the end of the connecting frame away from the sewage tank, and a lifting rod pierced in the guiding sleeve;

The guide sleeve has a through hole penetrating towards the direction of the sewage tank; the lifting rod is inserted in the through hole and is suitable for moving up and down relative to the sewage tank along the through hole;

The connecting frame is provided with a clamping groove suitable for fastening the broom handle.

In a preferred embodiment of the present invention, a handle is fixedly connected to the upper end of the handle; and

A sleeve capable of rotating around the handle is sheathed on the handle; the top of the sleeve is in contact with the bottom of the handle.

In an optional embodiment of the present utility model, the pump is arranged beside the guide sleeve; the pump is a piston pump;

The upper end of the piston rod of the pump is provided with a pressure head; a compression spring is provided between the pressure head and the cylinder body of the pump, and the compression spring is sleeved on the piston rod;

A dial button is fixedly connected to the upper part of the sleeve; a pressing plate suitable for pressing the pressing head is fixedly connected to the lower part of the sleeve.

In an optional embodiment of the present utility model, the pump is set close to the clean water tank, and the pump is set in the middle of the water supply pipe; the pump is a piston pump;

The piston rod of the pump is connected with a pedal.

In a preferred embodiment of the utility model, the cleaning tool further includes a water squeezing assembly;

The water squeeze assembly includes an inverted U-shaped shift fork that is fixedly connected to the part of the lifting rod that protrudes below the guide sleeve, and slides with the part of the lifting rod that passes through the shift fork downwards. a pair of symmetrically arranged first extrusion assembly and second extrusion assembly which are connected and are adapted to extrude the broom head from both sides of the broom head;

The shift fork includes a base fixedly connected with the lifting rod and a pair of legs connected with the base, and an accommodating section suitable for insertion of a broom head is formed between the pair of legs.

In an optional embodiment of the present utility model, the first extruding assembly includes a first body capable of rotating around an axis perpendicular to the handle, a body integrally connected with the first body and set away from the handle A pair of symmetrically arranged first wings; the first body and the pair of first wings together form a П-shaped structure; the ends of the pair of first wings away from the first body are provided with a second a squeeze roller;

The second extruding assembly includes a second body capable of rotating around an axis perpendicular to the handle, and a pair of symmetrically arranged second wings integrally connected with the second body and set away from the handle; The second body and the pair of second wings jointly form a П-shaped structure; the end of the pair of second wings away from the second body is provided with a second squeezing roller;

A pair of legs are respectively provided with protruding sliding columns facing the side ends of the first wing and the second wing; A waist-shaped sliding hole matched with the column; the sliding column is suitable for radially sliding along the waist-shaped sliding hole;

The first body and the second body are hingedly connected by two first rotating shafts that are both perpendicular to the handle and coaxially arranged; and

A through hole for passing the lifting rod is provided at the joint where the first body and the second body are hinged and between the opposite ends of the two first rotating shafts.

In an optional embodiment of the present utility model, the first extruding assembly includes a first body capable of rotating around an axis perpendicular to the handle, a body integrally connected with the first body and set away from the handle A pair of symmetrically arranged first wings; the first body and the pair of first wings together form a П-shaped structure; the ends of the pair of first wings away from the first body are provided with a second a squeeze roller;

The second extruding assembly includes a second body capable of rotating around an axis perpendicular to the handle, and a pair of symmetrically arranged second wings integrally connected with the second body and set away from the handle; The second body and the pair of second wings jointly form a П-shaped structure; the end of the pair of second wings away from the second body is provided with a second squeezing roller;

A pair of legs are respectively provided with protruding sliding columns facing the side ends of the first wing and the second wing; A waist-shaped sliding hole matched with the column; the sliding column is suitable for radially sliding along the waist-shaped sliding hole;

The first body and the second body are hingedly connected by a second rotating shaft perpendicular to the handle; and

At the seam where the first body and the second body are hinged and in the middle of the seam, there is a perforation for the handle to pass through;

A flat hole penetrating through the lifting rod is horizontally provided at the lower part of the lifting rod passing through the shift fork; the second rotating shaft passes through the flat hole; and the inner diameter of the flat hole in the length direction is larger than the outer diameter of the second rotating shaft path.

Adopting the above technical scheme, the utility model has the following beneficial effects: the cleaning appliance of the utility model can rinse the broom head clamped on the utility model to achieve the purpose of cleaning the broom head through the flushing assembly provided, and The sewage tank and flushing assembly (comprising the clear water tank for holding clear water) of the utility model are all arranged on the dustpan shovel, so that the overall weight of the broom will not be increased, and the The problem that the sewage tank and flushing components affect the normal use of the broom.

Furthermore, through the design of the water squeezing component, the water left by the flushed broom head can be squeezed to achieve the purpose of water squeezing, and the entire water squeezing structure is not set on the broom, which will not cause the weight of the broom itself to increase. increase. Compared with mops with water squeezing function in the prior art, for example, the water squeezing structure is arranged on the mop, which will increase the weight of the mop itself. Because in the process of cleaning, the broom or mop needs to be manually dragged for cleaning, so reducing the weight of the broom or mop itself can reduce the labor expenditure of the person using the broom or mop, thereby improving the comfort of the cleaning process sense.

Description of drawings

Fig. 1 is a front view of the cleaning tool of the present invention, showing the positions of the first squeezing roller and the second squeezing roller when the handle is pulled to the upper position;

Fig. 2 is a left view relative to Fig. 1;

Figure 3 is a top view relative to Figure 1, showing the structure of the connecting frame and the clamping groove, for concise expression, the handle is not drawn in the figure, and only the broom handle is drawn for the broom;

Fig. 4 shows the structure of the broom matched with the cleaning appliance of the present utility model;

Fig. 5 is a top view relative to Fig. 1, showing the structure of the water squeezing assembly, for concise expression, the connecting frame and the broom are not shown in the figure;

Fig. 6 is a front view of the cleaning tool, showing the state where the first squeeze roller and the second squeeze roller are close to each other and squeeze the broom head when the handle is pushed to the lower position;

Fig. 7 is a partially enlarged view of Fig. 1, showing the structure of the water squeezing assembly;

Figure 8 shows the structure that the pump is arranged on the side of the guide sleeve, the handle is covered with a sleeve, and the pump communicates with the sealed clean water tank through the air pipe. For concise expression, the broom and the water tank cover are not shown in the figure;

Fig. 9 is a partially enlarged view of Fig. 8, showing that when the handle is pushed, the handle pushes the sleeve and the pressure plate to move down, and the pressure plate touches the pressure head of the pump and drives the piston of the pump to move down;

Figure 10 shows the structure in which the knob is moved in the horizontal direction, the sleeve and the pressure plate rotate around the lifting rod, so that the pressure plate is aligned with the pressure head of the pump below it. For concise expression, only the handle and the sleeve are drawn in the figure , dial button, pressure plate, pump, pressure head;

Figure 11 shows the structure of turning the button in reverse, the sleeve and the pressure plate rotate around the lifting rod, so that the pressure plate deviates from the pressure head of the pump below it. For concise expression, only the handle, sleeve, and dial are drawn in the figure. Button, platen, pump, pressure head.

Fig. 12 is a partial enlarged view of Fig. 2, showing the structure in which the first body of the first extruding assembly and the second body of the second extruding assembly are hingedly connected by two coaxial first rotating shafts respectively. There is a perforation at the hinge joint between the first body and the second body and between the opposite ends of the two rotating shafts, and the lower end of the lifting rod passes through the perforation;

Fig. 13 is a partially enlarged view of Fig. 5, showing a top view structure in which the first body of the first extruding assembly is hingedly connected to the second body of the second extruding assembly through a second rotating shaft. There is a flat hole through the lifting rod, and the second rotating shaft passes through the flat hole;

Fig. 14 is the A-A direction sectional view of Fig. 4;

Fig. 15 is a side view of the insertion slot of the installation slot.

In the figure: bottom plate 1-1, side plate 1-2, sewage tank 2, fresh water tank 3, water tank cover 3-1, connecting frame 4, clamp groove 4-1, pump 5, piston rod 5-1, water supply pipe 6 , guide sleeve 7, lifting rod 8, handle 9, pedal 10, base 11-1, leg 11-2, sliding column 12, first body 13-1, first wing 13-2, second Body 14-1, second wing 14-2, first shaft 15-1, second shaft 15-2, sliding hole 16, first squeezing roller 17, second squeezing roller 18, broom handle 19, installation Groove 20, socket slot 20-1, broom head 21, water distribution pipe 22, water distribution hole 22-1, shoulder 22-2, gas delivery pipe 23, permanent magnet 24, first squeezing shaft 25-1, second Squeeze water shaft 25-2, scraper bar 26, sleeve 27, toggle button 27-1, pressing plate 27-2, perforation 28, semicircular slot hole 28-1, pressure head 29, stage clip 30, flat hole 31, Install nut 33.

Detailed ways

In order to make the content of the utility model more clearly understood, the utility model will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

Example 1:

Please refer to Figures 1 to 13, the present embodiment provides a cleaning tool, including: a cleaning tool, including: a broom and a dustpan shovel suitable for matching use, a dirt receiving component and a dustpan shovel provided on the dustpan shovel Flush components.

Please refer to Fig. 1, the dustpan shovel comprises a base plate 1-1 and three side plates 1-2 connected to the base plate 1-1 respectively, the base plate 1-1 and the three side plates 1-2 are jointly formed for accommodating Garbage accommodating chamber; the three side panels 1-2 surround and form an opening suitable for garbage to enter and exit.

Optionally, as shown in FIG. 6 , a scraping strip 26 protruding from the side plate 1 - 2 is provided on the side of the side plate 1 - 2 facing the accommodating cavity. The scraping strip 26 is arranged horizontally. When the broom head 21 is adhering to rubbish with a larger particle size, the scraper 26 can be used to scrape the rubbish off the broom head 21, and the scraped rubbish falls in the accommodating cavity of the dustpan shovel.

Please refer to Fig. 1 and Fig. 3, the dirt holding assembly includes a sewage tank 2 located outside the containing chamber, and a water inlet and outlet suitable for water in and out is provided at the top of the sewage tank 2 away from the ground.

Please refer to shown in Fig. 4, broom comprises broom handle 19, the installation groove 20 that links to each other with broom handle 19, and the broom head 21 that links to each other with installation groove 20; Water pipe 22, one end of the water distribution pipe 22 is a closed end, and the other end is an open end; the side of the water distribution pipe 22 facing the broom head 21 is uniformly provided with several water distribution holes 22-1. The broom head 21 here is made of elastic, porous, and highly water-absorbent materials (such as but not limited to sponge materials).

For the broom of this embodiment, it should also be explained that, referring to Fig. 4, in order to facilitate the flushing of the broom head 21 with clear water and the extrusion of moisture for the broom head 21 after flushing, the broom of the present embodiment The joint position of the handle 19 and the installation groove 20 is at 1/5-1/3 of the length direction of the installation groove 20, instead of being designed in the middle of the installation groove 20, and the grip part of the broom handle 19 faces away from the length direction of the broom head 21 The direction of the middle part is bent (see Figure 2). The broom handle 19 of the broom of the prior art is installed obliquely with respect to the broom head 21 mostly, and the grip part of the broom handle 19 all deviates from the middle part of the length direction of the broom head 21 a lot, and the purpose is to obtain better use feeling. The position of the grip part of the broom handle 19 of the present embodiment is the same with the broom of the prior art with respect to the middle part of the broom head 21 longitudinal direction, so the broom handle 19 and the broom handle 19 of the present embodiment are designed relative to the broom head 21 The installation position of the broom will not affect the feel of the broom. Optionally, two mounting holes for assembling with the broom handle 19 can be designed on the mounting groove 20, so that the broom can be respectively assembled in different mounting holes during the cleaning process and the cleaning process to realize corresponding switching operations.

Please refer to shown in Figure 4, the side end of the installation groove 20 towards the broom head 21 is provided with an insertion groove 20-1 (see Figure 15) for installing the broom head 21; There is a fixing hole suitable for the passage of the water distribution pipe 22; The outer side abuts against the shoulder 22 - 2 of the fixing hole of the mounting groove 20 .

Specifically, the broom handle 19 is detachably connected to the installation groove 20 by, for example, not limited to threaded insertion; the broom handle 19 can also be fixed to the installation groove 20 with an adhesive.

Please refer to Fig. 4, Fig. 14, shown in Fig. 15, the side end of installation groove 20 towards broom head 21 is provided with for installing the insertion slot 20-1 of broom head 21 (the optional broom head 21 adopts such as but not shown here The method limited to interference insertion is plugged and connected with the insertion groove 20-1 of the installation groove 20, because the material that makes the broom head 21 has a certain elasticity, so it can be connected to the part where the broom head 21 and the installation groove 20 are connected. The extrusion deformation of the broom head 21 and the insertion groove 20-1 of the installation groove 20 are interferingly inserted), and the groove walls at both ends of the installation groove 20 in the length direction are provided with fixing holes suitable for the passage of the water distribution pipe 22 . Optional here, it may be that the direct water distribution pipe 22 passes through the fixing hole of the installation groove 20 so that the water distribution pipe 22 is fixedly connected to the installation groove 20, as long as the water distribution hole 22-1 of the water distribution pipe 22 faces the broom head 21. . Optionally, an installation hole suitable for passing the water distribution pipe 22 is provided along the length direction of the installation groove 20 at the position where the broom head 21 is inserted into the insertion groove 20-1. At this time, the closed end of the water distribution pipe 22 is An external threaded portion suitable for threaded connection with the mounting nut 33 is provided, and the open end of the water distribution pipe 22 is provided with a shoulder 22-2 suitable for abutting against the fixing hole of the mounting groove 20 from the outside of the mounting groove 20, where The external threaded part of the closed end of is suitable for protruding out of the installation groove 20, and after the water distribution pipe 22 is assembled in place relative to the installation groove 20, the shoulder 22-2 is also located outside the installation groove 20.

The method of installing the broom head 21 and the water distribution pipe 22 in the installation groove 20 adopted in this embodiment: please refer to Fig. The closed end of the water distribution pipe 22 passes through the fixing hole of the installation groove 20 and the installation hole in the broom head 21 successively along the length direction of the installation groove 20, and then passes through another fixing hole of the installation groove 20; ③ passes through the installation groove 20 Mounting nut 33 is screwed on the external thread portion of the closed end of the water distribution pipe 22 outside the fixing hole. The two ends of the water distribution pipe 22 are fixedly connected with the installation groove 20 by means of the installation nut 33 and the shoulder 22-2 at the open end of the water distribution pipe 22, and the broom head 21 is firmly connected in the installation groove 20. Apparently, the broom of this embodiment has the advantage of convenient replacement of the broom head 21 which is a consumable part.

Please refer to Fig. 1 and shown in Fig. 8, the flushing assembly includes a clean water tank 3 for storing clean water located outside the chamber, a pump 5 provided on the outside of the clean water tank 3 and communicated with the inner cavity of the clean water tank 3, and one end is connected to the inner chamber of the clean water tank 3. The water supply pipe 6 communicating with the clean water tank 3; Specifically, in the present embodiment, the clean water tank 3 is arranged between the sewage tank 2 and the dustpan shovel. The pump 5 in this embodiment can optionally be electrically connected through a rechargeable storage battery arranged outside the clean water tank 3, and the rechargeable storage battery can provide the pump 5 with the electric energy required for operation.

To sum up, the functions of the water distribution pipe 22 in this embodiment include: ① make the clear water flowing into the water distribution pipe 22 enter the interior of the broom head 21 through the water distribution hole 22-1; ② make the upper part of the broom head 21 firmly connected to the installation groove 20 in; 3. insert for water supply pipe 6, play the effect of positioning hole when making broom be contained on the cleaning utensil of washable broom. Here, the water supply pipe 6 can be made of hard plastic material to improve the relative fixing effect of the broom head 21 through the synergy between the water distribution pipe 22 and the water supply pipe 6 after the water supply pipe 6 is docked with the water distribution pipe 22 .

It should be noted that, referring to Fig. 2 and Fig. 4, the broom handle 19 in this embodiment is preferably connected to the closed end side of the installation groove 20 near the water distribution pipe 22, so that the broom handle 19 forms a pair of broom handles. The location of the part of the corresponding water distribution pipe 22 closed end of the head 21 is fixed, and the water supply pipe 6 then forms a fixed location of the part of the corresponding water distribution pipe 22 open end of the broom head 21, thus, for the whole broom head 21 along the cloth The extension direction of the closed end and the open end of the water pipe 22 realizes the fixation of the two parts, which can effectively ensure the positioning and fixing effect of the broom head 21 .

In an optional embodiment, please refer to Fig. 1, the pump 5 is arranged at the middle position of the water supply pipe 6, that is, the water supply pipe 6 is disconnected at the middle position, and the pump 5 is connected at the disconnected position, so that Water supply pipe 6 communicates with the open end of clean water tank 3, pump 5 and water distribution pipe 22 successively; Adding water can certainly also be set to open water tank cover 3-1. The pump 5 here is arranged near the clean water tank 3 , for example, the pump 5 is arranged beside the clean water tank 3 or above and below the clean water tank 3 , or the pump 5 is arranged below the dirty water tank 2 . The pump 5 now adopts a piston pump; the piston rod 5-1 of the pump 5 is connected with a pedal 10. The foot pedal 10 here can optionally be arranged below the sewage tank 2 and beside the pump 5 , and the power for the pump 5 to work is provided by stepping on the foot pedal 10 repeatedly by the foot. The function of the pump 5 is to pump clean water, so that the clean water in the clean water tank 3 is transported through the pump 5 and flows through the water supply pipe 6 into the water distribution pipe 22, and then flows through the water distribution hole 22-1 of the water distribution pipe 22 into the broom head 21 , thereby realizing flushing the broom head 21 from the inside to the outside.

Please refer to Fig. 1, Fig. 2, shown in Fig. 3, the cleaning tool of the present embodiment also includes a frame assembly; Specifically, the frame assembly includes a connecting frame 4 connected to the sewage tank 2, and the connecting frame 4 is far away from the sewage tank. The guide sleeve 7 provided at the end of the guide sleeve 7, and the lifting rod 8 pierced in the guide sleeve 7; the guide sleeve 7 has a through hole penetrating towards the direction of the sewage tank 2; the lifting rod 8 is inserted in the through hole and is suitable for Move up and down relative to the sewage tank 2 along the through hole; the connecting frame 4 is in the shape of an arch bridge, and the connecting frame 4 is provided with a clamping groove 4-1 suitable for clamping the broom handle 19 . The top of the connecting frame 4 is fixedly connected with the guide sleeve 7, and the bottom of the connecting frame 4 is fixedly connected with the dirt holding assembly, specifically, the bottom of the connecting frame 4 is fixedly connected with the wall plate of the sewage tank 2. Wherein, the upper end of the lifting rod 8 is fixedly connected with a handle 9; and the lifting rod 8 is covered with a sleeve 27 that can rotate around the lifting rod 8; ministry contacts. The lifting rod 8 passes through the guide sleeve 7 and can move up and down relative to the sewage tank 2 along the through hole of the guide sleeve 7 under the constraint of the through hole of the guide sleeve 7 . The function of the lifting frame assembly of this embodiment is: 1) As a shelf, the dirt receiving assembly, the flushing assembly, and the water squeezing assembly are assembled and connected into a whole; 2) The cleaning tool described in this embodiment is easy to carry; 3) When cleaning the broom The broom is installed, and the broom handle 19 is fastened.

Please refer to Fig. 3 and Fig. 4, since the broom handle 19 is connected to the closed end side of the installation groove 20 near the water distribution pipe 22, and the water supply pipe 6 forms a fixed position for the part of the broom head 21 corresponding to the open end of the water distribution pipe 22. , Therefore, for assembling with the broom handle 19 in order to fix the clip groove 4-1 of the broom handle 19, it is preferably arranged on the side of the connecting frame 4 away from the water supply pipe 6, so that the clip groove 4-1 and the water supply pipe 6 meet the requirements for the broom head respectively. 21 along the closed end of the water distribution pipe 22 toward the overall fixing effect of the direction of the open end. The clamping groove 4-1 here adopts, for example but not limited to, a structure that is assembled with the broom handle 19 by extruding with an external force, that is, only relying on the pressing force of the broom handle 19 relative to the clamping groove 4-1 during the assembly process To make the broom handle 19 be packed into the clip groove 4-1 or pulled out from the clip groove 4-1.

In order to squeeze water from cleaning the broom on the broom head 21 and speed up the loss of water from the broom head 21, the cleaning tool in this embodiment also includes a water squeezing assembly.

Please refer to Fig. 1, Fig. 6, and Fig. 7, the water squeezing assembly includes an inverted U-shaped shift fork fixedly connected to the part of the lifting rod 8 protruding below the guide sleeve 7, and a downwardly penetrating fork with the lifting rod 8. A pair of symmetrically arranged first extruding assemblies and second extruding assemblies that are adapted to extrude the broom head 21 from both sides of the broom head 21 are connected by sliding part of the shift fork; The fixed base 11-1 and a pair of legs 11-2 connected to the base 11-1 form an accommodating space between the pair of legs 11-2, which is suitable for the broom head 21 to be inserted.

Please refer to Fig. 2, Fig. 7 and Fig. 13. Specifically, the first extrusion assembly includes a first body 13-1 that can rotate around an axis perpendicular to the handle 8, and a body that is integrally connected with the first body 13-1. And a pair of symmetrically arranged first wings 13-2 set away from the handle 8; the first body 13-1 and a pair of first wings 13-2 together form a П-shaped structure; a pair of first wings 13- 2 A first squeeze roller 17 is provided at the end of the first body 13-1 away from it.

Please refer to Fig. 2, Fig. 7, and Fig. 13, the second extruding assembly includes a second body 14-1 that can rotate around an axis perpendicular to the handle 8, and is integrally connected with the second body 14-1 and is away from the handle. A pair of symmetrically arranged second wings 14-2 arranged on the rod 8; the second body 14-1 and a pair of second wings 14-2 jointly form a П-shaped structure; a pair of second wings 14-2 deviate from the first The ends of the two bodies 14-1 are provided with a second squeezing roller 18.

Please refer to Fig. 2 and Fig. 7, a pair of legs 11-2 are respectively provided with protruding sliding columns 12 towards the side ends of the first wing 13-2 and the second wing 14-2; One wing 13 - 2 and the second wing 14 - 2 are correspondingly provided with a waist-shaped sliding hole 16 matched with the sliding post 12 ; the sliding post 12 is suitable for radially sliding along the waist-shaped sliding hole 16 . Here, the axis of the sliding post 12 perpendicularly intersects the axis of the through hole of the guide sleeve 7 . When the spool 12 slides radially along the waist-shaped sliding hole 16, the waist-shaped sliding hole 16 is an oblong structure, and the inner diameter in the length direction is larger than the outer diameter of the slid 12, so that the slid 12 slides along the waist-shaped The inner diameter of the sliding hole 16 in the length direction has a certain sliding space when sliding.

Please refer to Fig. 12 and Fig. 13, the first body 13-1 and the second body 14-1 are hingedly connected by two first rotating shafts 15-1 which are both perpendicular to the lifting rod 8 and arranged on the same axis. The first body 13-1 and the second body 14-1 can rotate relatively; at the joint where the first body 13-1 and the second body 14-1 are hinged and at the opposite ends of the two first rotating shafts 15-1 A perforation 28 for the lifting rod 8 to pass is provided between the parts. The axis of the perforation 28 is collinear with the axis of the through hole of the guide sleeve 7, and the lower end of the lifting rod 8 passes through the perforation 28. Move freely without restraint. What needs to be explained here is that the through holes 28 here are specifically opened on the first body 13-1 and the second body 14-1 respectively, and are hinged at the first body 13-1 and the second body 14-1. The two semicircular slots 28-1 in the middle of the seam are combined into perforations 28 by the two semicircular slots 28-1.

Please refer to shown in Figure 12, the axes of the first squeeze roller 17 and the second squeeze roller 18 are all parallel to the axis of the first rotating shaft 15-1, and the first squeeze roller 17 and the second squeeze roller 18 are relative to the dial The forks are arranged symmetrically in a mirror image, and the first squeezing roller 17 and the second squeezing roller 18 are respectively in contact with the two sides of the broom head 21 and can move on the two sides of the broom head 21 .

Please refer to Fig. 1 and Fig. 7, the first squeeze roller 17 is rotatably supported on the end of the first wing 13-2 through the first squeeze shaft 25-1; the second squeeze roller 18 passes through the second squeeze The shaft 25-2 is rotatably supported at the end of the second wing 14-2. In this way, when the first squeeze roller 17 and the second squeeze roller 18 squeeze the dirty water in the broom head 21, the first squeeze roller 17 and the second squeeze roller 18 can be positioned on both sides of the broom head 21 respectively. scroll. Here, the first squeeze roll 17 and the second squeeze roll 18 preferably adopt a cylindrical structure.

The specific implementation principle of the cleaning appliance of the present embodiment is as follows:

Please refer to Fig. 1, Fig. 2, Fig. 6, after the broom is contained on the cleaning implement described in the present embodiment, step on pedal 10 repeatedly earlier with foot, provide power for pump 5, make clean water pass through pump from clean water tank 3 5. The water supply pipe 6, the water distribution pipe 22, and the water distribution hole 22-1 flow into the inside of the broom head 21 to wash the broom head 21 from the inside out. Then, push the handle 9 hard, and the handle 8 and the shift fork move down quickly, because the handle 8 can move freely in the perforation 28, so the handle 8 will not directly push the first extruding assembly and the second extrusion assembly. The second extruding assembly moves down, and the first extruding assembly and the second extruding assembly will lag behind the shift fork to move downward due to inertia, so that the sliding column 12 arranged on the shift fork is located at the first extruding assembly and the second extruding assembly. Slide in the sliding hole 16 on the two extruding assemblies, and push the first extruding assembly and the second extruding assembly to rotate counterclockwise and clockwise around the first rotating shaft 15-1 respectively, so that the first squeezing roller 17 and The second squeezing rollers 18 approach each other and squeeze the broom head 21 . At this time, the shift fork will also push the first squeezing assembly and the second squeezing assembly to move downward, and push the first squeezing roller 17 and the second squeezing roller 18 to move downward, and the first squeezing roller 17 and the second squeezing roller 18 will move downward. When the second squeeze roller 18 moves downward relative to the broom head 21, it will generate friction with the broom head 21, and the friction force will further make the first extrusion assembly rotate counterclockwise and further make the second extrusion assembly rotate clockwise. The first squeeze roller 17 and the second squeeze roller 18 are just further close to and squeeze the broom head 21, the dirty water in the broom head 21 is squeezed out, and the dirt on the broom head 21 surface is taken away, and the dirty water discharged and Dirt is collected in the sewage tank 2. Please refer to Fig. 1 and Fig. 6, when the handle 9 is pulled up, the handle 8 and the shift fork move up, and the sliding column 12 on the shift fork is in the sliding hole 16 on the first extrusion assembly and the second extrusion assembly slide, and push the first squeeze assembly and the second squeeze assembly to rotate clockwise and counterclockwise around the first rotating shaft 15-1, so that the first squeeze roller 17 and the second squeeze roller 18 are separated from each other and loosened. Open the broom head 21, and then, the sliding column 12 on the shift fork drives the first squeeze assembly and the first squeeze roller 17 to move upward, and also drives the second squeeze assembly and the second squeeze roller 18 to move upward. Repeatedly pushing and pulling the handle 9 times, the broom head 21 can be cleaned. Because clear water enters the inside of the broom head 21 from the water distribution hole 22-1 of the water distribution pipe 22, and then squeezes out from the inside to the outside, so the cleaning tool of the present embodiment saves water when cleaning the broom; It is easy to be taken out by the water squeezed out from the inside, so the cleaning tool of this embodiment has a good cleaning effect on the broom. In addition, the cleaning tool in this embodiment can realize cleaning the broom on the spot, without going to the flushing pool to clean the broom. Because the cleaned broom head 21 contains a certain amount of moisture, the broom can not only sweep away the garbage with larger particle size, but also absorb the dust with smaller particle size when sweeping the floor, and play the role of sweeping and mopping the floor at the same time.

Example 2:

On the basis of the cleaning tool in embodiment 1, the cleaning tool provided in this embodiment has roughly the same structure as the cleaning tool in embodiment 1, the difference is that, please refer to Fig. 2, Fig. 7, shown in Fig. The first extrusion assembly of the tool includes a first body 13-1 that can rotate around an axis perpendicular to the handle 8, a pair of symmetrically disposed first bodies 13-1 integrally connected with the first body 13-1 and set away from the handle 8 Wings 13-2; the first body 13-1 and a pair of first wings 13-2 together form a П-shaped structure; the ends of the pair of first wings 13-2 away from the first body 13-1 are provided with a A squeezing roller 17.

Please refer to Fig. 2, Fig. 7, and Fig. 13, the second extruding assembly includes a second body 14-1 that can rotate around an axis perpendicular to the handle 8, and is integrally connected with the second body 14-1 and is away from the handle. A pair of symmetrically arranged second wings 14-2 arranged on the rod 8; the second body 14-1 and a pair of second wings 14-2 jointly form a П-shaped structure; a pair of second wings 14-2 deviate from the first The ends of the two bodies 14-1 are provided with a second squeezing roller 18.

Please refer to Fig. 2 and Fig. 7, a pair of legs 11-2 are respectively provided with protruding sliding columns 12 towards the side ends of the first wing 13-2 and the second wing 14-2; One wing 13 - 2 and the second wing 14 - 2 are correspondingly provided with a waist-shaped sliding hole 16 matched with the sliding post 12 ; the sliding post 12 is suitable for radially sliding along the waist-shaped sliding hole 16 .

Please refer to Fig. 13, the first body 13-1 and the second body 14-1 are hingedly connected by a second rotating shaft 15-2 arranged perpendicular to the handle 8; The lower part of the rod 8 that passes through the shift fork is horizontally provided with a flat hole 31 that runs through the lifting rod 8; the second rotating shaft 15-2 passes through the flat hole 31; The outer diameter is such that the second shaft 15 - 2 can move along the length direction of the flat hole 31 . It also needs to be explained here that, in order to facilitate the lifting rod 8 in this embodiment to pass through the first body 13-1 and the second body 14-1, so that the flat hole 31 on the lifting rod 8 protrudes from the first body 14-1. Below the body 13-1 and the second body 14-1 so that the second shaft 15-2 passes through the flat hole 31, this embodiment is also at the joint where the first body 13-1 and the second body 14-1 are hinged In addition, a perforation 28 is provided in the middle of the seam for passing the handle 8 . Optionally, the perforation 28 in this embodiment has the same specific structure as the perforation 28 in the first embodiment.

The effect of setting the flat hole 31 at the bottom of the lifting rod 8 is: the flat hole 31 of the lifting rod 8 can give the second rotating shaft 15-2 better positioning on the horizontal direction perpendicular to the second rotating shaft 15-2, so that the first The extruding assembly and the second extruding assembly have better symmetry when moving, and also make the first squeezing roller 17 and the second squeezing roller 18 have better mirror symmetry when moving.

Example 3:

On the basis of the cleaning appliance of embodiment 1 or embodiment 2, the general structure of the cleaning appliance provided by this embodiment is the same as that of embodiment 1 or embodiment 2, the difference is that the pump 5 of the cleaning appliance of this embodiment Be located at the side of guide sleeve 7, the top of clear water tank 3 is provided with water tank cover 3-1, makes clear water tank 3 become the container of sealing, and pump 5 is connected with the clear water tank 3 of sealing by air delivery pipe 23, at this moment. The pump 5 adopts a piston pump; the pump 5 pumps air into the clean water tank 3 through the air delivery pipe 23, causing the air pressure in the clean water tank 3 to rise, and the clean water is pressed out of the clean water tank 3, and the clean water flows through the water supply pipe 6 into the water distribution pipe 22 , and then flow through the water distribution hole 22-1 of the water distribution pipe 22 into the broom head 21.

The upper end of the piston rod 5-1 of the pump 5 is provided with a pressure head 29; between the pressure head 29 and the cylinder body of the pump 5, a compression spring 30 is arranged and the compression spring 30 is sleeved on the piston rod 5-1; The upper part of the sleeve 27 is fixedly connected with a toggle button 27-1; Toggle the toggle button 27-1 in the horizontal direction to make the sleeve 27 and the pressing plate 27-2 rotate around the lifting rod 8. Here, the operation of flushing and squeezing the broom head 21 can be realized by manipulating the handle 9 with one hand; and the switching between flushing and non-rinsing of the broom head 21 can be completed by turning the toggle button 27-1 with a finger. , this conversion can be carried out while squeezing the water operation, that is, in the process of pushing and pushing the handle 9 repeatedly.

When the broom head 21 needs to be rinsed and squeezed, hold the handle 9 with your hand and turn the knob 27-1 in the horizontal direction with your fingers, so that the pressure plate 27-2 is aligned with the pressure head 29 of the pump 5 below it. (Please refer to Fig. 10), please refer to Fig. 8 and Fig. 9, and push the handle 9 hard. In addition to pushing the water squeezing assembly to squeeze the sewage from the broom head 21, the handle 9 also pushes the sleeve 27 and the pressing plate 27 -2 moves down, the pressure plate 27-2 hits the pressure head 29 and drives the piston of the pump 5 to move down, so that the pump 5 exhausts, and the gas discharged from the pump 5 is introduced into the clean water tank 3 through the air pipe 23, so that the clean water tank 3 The air pressure rises, clear water is pressed out of the clear water tank 3, clear water flows through the water supply pipe 6 and enters in the described water distribution pipe 22, and then flows through the water distribution hole 22-1 of the water distribution pipe 22 into the broom head 21. Please refer to Fig. 8 and Fig. 9, lift the handle 9 upwards, the sleeve 27 and the pressure plate 27-2 move up with the handle 9, the pressure plate 27-2 leaves the pressure head 29 of the pump 5, and the pressure head 29 is in the position of the compression spring 30. The effect of the elastic force moves up and drives the piston rod 5-1 and the piston to move up, so that the pump 5 sucks air from the outside. When only the broom head 21 needs to be squeezed, hold the handle 9 with your hand and turn the knob 27-1 in reverse with your fingers, so that the pressing plate 27-2 deviates from the pressure head 29 of the pump 5 below it (see Figure 11 ), please refer to Fig. 8 and Fig. 9, push the handle 9 firmly, and the handle 9 pushes the water squeezing assembly through the handle 8 to squeeze the sewage from the broom head 21; the handle 9 also pushes the sleeve 27 and the pressing plate 27-2 move, but the pressing plate 27-2 will not touch the pressure head 29 and will not drive the piston of the pump 5 to move down, and the pump 5 will not exhaust.

In an optional embodiment, a permanent magnet 24 is provided on the base 11-1 of the shift fork, and the first rotating shaft 15-1 or the second rotating shaft 15-2 between the first extruding assembly and the second extruding assembly adopts The material (such as steel) that can be attracted by the permanent magnet 24 is made, and the permanent magnet 24 here adopts, for example but not limited to, a ring structure, so as to be arranged on the base 11-1 and surround the circumferential outer side of the lifting rod 8, so that the permanent magnet 24 The magnet 24 can produce a better magnetic attraction effect on the two first rotating shafts 15 - 1 or the second rotating shaft 15 - 2 respectively located on both sides of the lifting rod 8 . The effect and beneficial effect of setting the permanent magnet 24 on the shift fork are: please refer to Fig. 6 and Fig. 7, when the handle 9 is pushed hard, the lifting rod 8, the shift fork and the permanent magnet 24 move down rapidly together, and the permanent magnet 24 quickly approach the tops of the first extruding assembly and the second extruding assembly and attract the first rotating shaft 15-1 or the second rotating shaft 15-2, and the magnetic attraction makes the first extruding assembly and the second extruding assembly not move toward Make a free fall movement, ensure that the first extrusion assembly and the second extrusion assembly lag behind the shift fork and move down, so that the first squeezing roller 17 and the second squeezing roller 18 are close to each other and the action of squeezing the broom head 21 is done. more reliable and accurate.

The above specific embodiments have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. It should be understood that the above are only specific embodiments of the present utility model, and are not intended to limit the present utility model. Within the spirit and principles of the present utility model, any modification, equivalent replacement, improvement, etc. should be included in the protection scope of the present utility model.

In the description of the utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the Means that a device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the present invention, unless otherwise specified and limited, the first feature above or below the second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact. Rather, through additional characteristic contact between them. Moreover, the first feature on, above and above the second feature includes the first feature directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature being below, below and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Claims (10)

1. A cleaning tool, characterized in that it comprises: a broom and a dustpan shovel suitable for supporting use, a dirt receiving assembly and a flushing assembly provided on the dustpan shovel; The dustpan shovel includes a base plate and three side plates respectively connected to the base plate, the base plate and the three side plates together form a cavity for accommodating garbage; openings for entry and exit; The dirt holding assembly includes a sewage tank located outside the accommodating cavity, and a water inlet and outlet suitable for water entry and exit is provided at the top of the sewage tank away from the ground; The broom includes a broom handle, an installation groove connected to the broom handle, and a broom head connected to the installation groove; the inside of the installation groove is provided with a water distribution pipe along the length direction of the installation groove, and the water distribution pipe One end is a closed end, while the other end is an open end; the side of the water distribution pipe facing the broom head is uniformly provided with several water distribution holes; The flushing assembly includes a clean water tank for storing clean water located outside the accommodation cavity, a pump provided outside the clean water tank and communicated with the inner cavity of the clean water tank, and a water supply pipe with one end communicated with the clean water tank ; The other end of the water supply pipe is suitable for clamping communication with the open end of the water distribution pipe. 2. The cleaning tool according to claim 1, characterized in that, the side end of the installation groove facing the broom head is provided with an insertion slot for installing the broom head; Fixing holes suitable for passing water distribution pipes are opened on the groove walls at both ends of the installation groove in the length direction; and The closed end of the water distribution pipe is provided with an external thread portion suitable for being threadedly connected with a mounting nut; The open end of the water distribution pipe is provided with a shoulder adapted to abut against the fixing hole of the installation groove from the outside of the installation groove. 3. The cleaning tool according to claim 1, wherein the pump communicates with the clean water tank through an air pipe; and The top of the clean water tank is provided with a water tank cover. 4. The cleaning tool according to claim 3, characterized in that, the cleaning tool further comprises a rack assembly; The lifting frame assembly includes a connecting frame connected to the sewage tank, a guide sleeve provided at the end of the connecting frame away from the sewage tank, and a lifting rod pierced in the guiding sleeve; The guide sleeve has a through hole penetrating towards the direction of the sewage tank; the lifting rod is inserted in the through hole and is suitable for moving up and down relative to the sewage tank along the through hole; The connecting frame is provided with a clamping groove suitable for fastening the broom handle. 5. The cleaning tool according to claim 4, wherein a handle is fixedly connected to the upper end of the handle; and A sleeve capable of rotating around the handle is sheathed on the handle; the top of the sleeve is in contact with the bottom of the handle. 6. The cleaning appliance according to claim 5, characterized in that, the pump is arranged on the side of the guide sleeve; the pump is a piston pump; The upper end of the piston rod of the pump is provided with a pressure head; a compression spring is provided between the pressure head and the cylinder body of the pump, and the compression spring is sleeved on the piston rod; A dial button is fixedly connected to the upper part of the sleeve; a pressing plate suitable for pressing the pressing head is fixedly connected to the lower part of the sleeve. 7. The cleaning tool according to any one of claims 1 or 2, wherein the pump is arranged close to the clean water tank, and the pump is arranged in the middle of the water supply pipe; the pump is a piston pump; The piston rod of the pump is connected with a pedal. 8. The cleaning tool according to claim 4, wherein the cleaning tool further comprises a water squeezing assembly; The water squeeze assembly includes an inverted U-shaped shift fork that is fixedly connected to the part of the lifting rod that protrudes below the guide sleeve, and slides with the part of the lifting rod that passes through the shift fork downwards. a pair of symmetrically arranged first extrusion assembly and second extrusion assembly which are connected and are adapted to extrude the broom head from both sides of the broom head; The shift fork includes a base fixedly connected with the lifting rod and a pair of legs connected with the base, and an accommodating section suitable for insertion of a broom head is formed between the pair of legs. 9. The cleaning tool according to claim 8, characterized in that, the first extruding assembly comprises a first body capable of rotating around an axis perpendicular to the handle, and is integrally connected with the first body and faces away from the handle. A pair of symmetrically arranged first wings arranged on the lifting rod; the first body and the pair of first wings jointly form a П-shaped structure; a pair of the first wings away from the first body The end is provided with a first squeezing roller; The second extruding assembly includes a second body capable of rotating around an axis perpendicular to the handle, and a pair of symmetrically arranged second wings integrally connected with the second body and set away from the handle; The second body and the pair of second wings jointly form a П-shaped structure; the end of the pair of second wings away from the second body is provided with a second squeezing roller; A pair of legs are respectively provided with protruding sliding columns facing the side ends of the first wing and the second wing; A waist-shaped sliding hole matched with the column; the sliding column is suitable for radially sliding along the waist-shaped sliding hole; The first body and the second body are hingedly connected by two first rotating shafts that are both perpendicular to the handle and coaxially arranged; and A through hole for passing the lifting rod is provided at the joint where the first body and the second body are hinged and between the opposite ends of the two first rotating shafts. 10. The cleaning tool according to claim 8, characterized in that, the first extruding assembly comprises a first body capable of rotating around an axis perpendicular to the handle, a body integrally connected with the first body and facing away from the handle. A pair of symmetrically arranged first wings arranged on the lifting rod; the first body and the pair of first wings jointly form a П-shaped structure; a pair of the first wings away from the first body The end is provided with a first squeezing roller; The second extruding assembly includes a second body capable of rotating around an axis perpendicular to the handle, and a pair of symmetrically arranged second wings integrally connected with the second body and set away from the handle; The second body and the pair of second wings jointly form a П-shaped structure; the end of the pair of second wings away from the second body is provided with a second squeezing roller; A pair of legs are respectively provided with protruding sliding columns facing the side ends of the first wing and the second wing; A waist-shaped sliding hole matched with the column; the sliding column is suitable for radially sliding along the waist-shaped sliding hole; The first body and the second body are hingedly connected by a second rotating shaft perpendicular to the handle; and At the seam where the first body and the second body are hinged and in the middle of the seam, there is a perforation for the handle to pass through; A flat hole penetrating through the lifting rod is horizontally provided at the lower part of the lifting rod passing through the shift fork; the second rotating shaft passes through the flat hole; and the inner diameter of the flat hole in the length direction is larger than the outer diameter of the second rotating shaft path.