Dual-purpose mop

Abstract

The utility model relates to the technical field of cleaning appliances, in particular to a dual-purpose mop which comprises a mop plate and a cloth cover wrapped on the lower middle portion of the mop plate, a fixing groove is formed in the top face of the mop plate, a fixing block is buckled in the fixing groove, a handle is arranged on the side, away from the cloth cover, of the fixing block, and a mop rod is detachably arranged on the handle. A through hole is formed in the handle, a hinge pipe is arranged below the through hole, the handle is hinged to the fixing block through the hinge pipe, a plurality of limiting grooves are formed in the side wall of the bottom of the hinge pipe at equal intervals, limiting blocks are arranged in the limiting grooves respectively, the top shapes of the limiting blocks are matched with the shapes of the limiting grooves, and a button is movably sleeved with the hinge pipe. The limiting block and the bottom of the button are of an integrated structure, a fixing hole is formed in the fixing block, the bottom of the limiting block is arranged in the fixing hole in a sleeved mode, and a spring is arranged in the fixing hole. The utility model provides the dual-purpose mop which is convenient to hold by hand for cleaning operation and is convenient to adjust the included angle between the mop head and the mop rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cleaning appliance technical field, concretely relates to a dual-purpose mop. BACKGROUND

[0002] Mop is a kind of cleaning tool frequently used in daily life, it becomes important helper for keeping ground clean in family, office and other places with its unique design and practicality.Mop is usually composed of a solid mop rod and a soft and easy-to-clean mop head, the design of mop rod enables cleaning personnel to easily hold and operate, and the mop head is responsible for cleaning ground, so as to complete cleaning task.When using mop to clean, cleaning personnel can stand in the posture, and by pushing and pulling or swinging mop rod left and right, mop head is driven to slide freely on ground, and then dust, stains and sundries on ground are effectively wiped off.This standing cleaning mode not only reduces the labor intensity of cleaning personnel, but also improves cleaning efficiency, so that cleaning work becomes easy and happy.Mop provides great convenience for our cleaning work, so that keeping living, working environment tidy becomes simpler and more efficient.

[0003] In the process of cleaning ground, some difficult-to-clean contaminated areas are often encountered.Although cleaning personnel will repeatedly wipe these areas with mop, sometimes these stubborn stains still cannot be completely removed.In this case, cleaning personnel usually turn to use cloth and cleaning agent to clean these contaminated areas more carefully.This requires cleaning personnel to carry multiple cleaning tools such as mop, cloth and cleaning agent when cleaning work is carried out.In this way, carrying multiple tools brings inconvenience to cleaning work and affects cleaning efficiency.In addition, during the process of cleaning ground, some cleaning dead angles are inevitably encountered.Because mop rod is usually connected with mop head through hinged connection, mop rod can only rotate around the hinge point, which makes the horizontal angle between mop head and mop rod unable to be effectively adjusted.Therefore, when cleaning personnel try to clean the dead angles of ground by moving mop rod, it is often difficult to accurately move mop head to those hard-to-reach corners, so that mop cannot be used to completely clean these dead angles.Based on this, there is still much room for improvement in the design of mop to facilitate hand-held cleaning work, adjust the angle between mop head and mop rod, so as to better adapt to the needs of various cleaning work and improve cleaning efficiency and quality. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a dual-purpose mop which is convenient for hand-held cleaning work and adjusting the angle between mop head and mop rod, to overcome the defects in the prior art.

[0005] The utility model discloses a technical scheme for a dual-purpose mop, which comprises a mop plate and a cloth surface wrapped around the lower part of the mop plate, a fixing groove is formed on the top surface of the mop plate, a fixing block is buckled in the fixing groove, a handle is arranged on the side of the fixing block away from the cloth surface, and a mop rod is detachably arranged on the handle.

[0006] Preferably, the side of the fixing block away from the button is provided with a fixed frame of n-shaped structure, the bottom end of the fixed frame is mounted on the top surface of the fixing block, a protection groove is formed on the handle, the protection groove is formed along the side wall of the handle to the other side of the handle, the fixed frame is located in the protection groove, two buckle plates of L-shaped structure made of elastic material are arranged on the fixed frame, the top ends of the two buckle plates are respectively mounted on the two sides of the top of the fixed frame, the fixing block below the fixed frame is provided with an adjusting groove of inverted T-shaped structure, the bottoms of the two buckle plates are respectively sleeved on the two sides of the adjusting groove, the mop plate on the two sides of the fixing groove is respectively provided with a buckle groove, the buckle groove is communicated with the fixing groove, the bottom end of the buckle plate is sleeved with the top of the buckle groove, and the shape of the top of the buckle groove is consistent with the shape of the bottom end of the buckle plate.

[0007] Preferably, the fixing groove adopts a convex-shaped groove structure, the number of the fixing grooves is not less than two, the fixing grooves are all formed along one end of the mop plate to the other end of the mop plate, and the fixing grooves are equally spaced on the mop plate.

[0008] Preferably, two connecting grooves of L-shaped structure are formed on the top surface of the mop plate, the connecting grooves are parallel to the fixing groove, and the fixing groove is located between the two connecting grooves, two clamping plates of n-shaped structure are interference-fitted on the mop plate, the inner sides of the two clamping plates are respectively sleeved on the two connecting grooves, the inner side structure of the clamping plate is consistent with the inner cavity structure of the connecting groove, the end of the cloth surface is located between the outer side of the clamping plate and the mop plate, the cloth surface is clamped and fixed on the mop plate through the clamping plate, and the mop plate on one end of the connecting groove is obliquely provided with a guide groove communicated with the connecting groove.

[0009] Preferably, the handle is provided with a slot on the side close to the button, the slot is provided from the top end of the handle to the middle of the handle, a screw pipe is arranged in the slot, two insertion holes are provided on the bottom of the screw pipe, a round block is movably sleeved in the insertion hole, the diameter of the round block is consistent with the diameter of the insertion hole, one end of the round block is installed on the side wall of the slot, the screw pipe is hinged on the handle through the round block, and a screw rod is threadedly sleeved on the middle and upper portion of the screw pipe.

[0010] Preferably, the external shape of the hinge pipe is in a stepped circular structure, the top end of the hinge pipe is installed on the bottom end of the handle, the external diameter of the top of the hinge pipe is not greater than the external diameter of the bottom of the hinge pipe, a sleeve hole is provided on the fixing block, the hinge pipe is movably sleeved in the sleeve hole, the shape of the sleeve hole is consistent with the external shape of the hinge pipe, and the sleeve hole is in communication with the fixing hole.

[0011] Preferably, the middle of the handle is provided with a hand holding slot, the hand holding slot is provided from the side wall of one end of the handle to the side wall of the other end of the handle, and the hand holding slot is in communication with the through hole.

[0012] The utility model has the advantages that: firstly, the handle and the mop rod are detachably connected, so that the cleaner holds the mop rod to clean the ground in a standing posture, and after the mop rod is removed, the cleaner holds the handle to clean the contaminated area of the ground with the mop and the cloth, thereby realizing dual functions. Moreover, the handle is hinged on the fixing block through the hinge pipe, so that the handle can rotate horizontally around the mop to facilitate cleaning of dead corners, thereby improving the cleaning effect. The limiting slot is provided on the hinge pipe, the limiting block is arranged in the limiting slot, the button is installed on the limiting block, and the spring is arranged below the button, so as to facilitate limiting the rotation of the handle and the hinge pipe and facilitate controlling the rotation of the handle.

[0013] Secondly, the fixing block is buckled and fixed into the fixing slot provided on the mop through the fixing frame and the buckle plate, so as to facilitate dismounting and mounting the fixing block. The fixing slot provided on the mop is not less than two, so as to facilitate changing the position of the fixing block buckled on the mop and providing various cleaning solutions. Moreover, the clamping plate is arranged, and two connecting slots are provided on the mop, so as to facilitate clamping the two sides of the cloth on the mop, thereby fixing the cloth. The guide slot is provided on the mop, so as to guide the clamping plate to be interference-fitted on the mop.

[0014] Furthermore, this invention uses a circular block to hinge the screw tube to the handle, and the threaded rod on the screw tube allows the tow rod to be detachably mounted on the screw tube, facilitating the installation and removal of the tow rod. Moreover, the hinge tube adopts a stepped circular structure, and by controlling the outer diameter of the top of the hinge tube to be no greater than the outer diameter of the bottom of the hinge tube, the handle is hinged to the fixed block via the hinge tube. Additionally, this invention features a hand grip groove in the middle of the handle for easy gripping during cleaning operations and convenient pressing of the protruding button. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the assembly of the drag plate and the drag bar in this utility model.

[0017] Figure 3 This is a schematic diagram illustrating the use of the fixing block and handle in this utility model.

[0018] Figure 4 This is a schematic diagram of the assembly of the handle, hinge tube, button, and spring in this utility model.

[0019] Figure 5 This is a cross-sectional view of the fixing block in this utility model.

[0020] Figure 6 This is an assembly cross-sectional view of the slide plate and the fixing block in this utility model.

[0021] Figure 7 for Figure 6 Enlarged diagram of point A in the middle.

[0022] Figure 8 This is an exploded view of the assembly of the slide, fabric, and clamping plate in this utility model. Detailed Implementation

[0023] like Figures 1 to 8As shown, a dual-purpose mop comprises a mop plate 1 and a cloth surface 2 wrapped in the lower part of the mop plate 1, a fixing groove 3 is formed on the top surface of the mop plate 1, a fixing block 4 is buckled in the fixing groove 3, a handle 5 is arranged on the side of the fixing block 4 away from the cloth surface 2, a mop rod 6 is detachably arranged on the handle 5, the mop rod 6 is held to clean the ground in a standing posture, and after the mop rod 6 is removed, the handle 5 is held to clean the contaminated area of the ground, thereby realizing the dual-purpose function; a perforation 7 is formed on the handle 5, a hinge pipe 8 is arranged below the perforation 7, the inner cavity of the hinge pipe 8 is communicated with the perforation 7, the handle 5 is hingedly connected to the fixing block 4 through the hinge pipe 8, a plurality of limiting grooves 9 are equidistantly formed on the bottom side wall of the hinge pipe 8, a plurality of limiting blocks 10 are respectively arranged in the limiting grooves 9, the top of the limiting block 10 is matched with the shape of the limiting groove 9, a button 11 is movably sleeved in the hinge pipe 8, the top of the button 11 is arranged to pass through the perforation 7, the limiting block 10 and the bottom of the button 11 are in an integral structure, a fixing hole 12 is formed on the fixing block 4, the cross-sectional shape of the fixing hole 12 is matched with the cross-sectional shape of the combined structure of the limiting block 10 and the button 11, the bottom of the limiting block 10 is sleeved in the fixing hole 12, a spring 13 is arranged in the fixing hole 12, the two ends of the spring 13 are respectively arranged on the bottom surface of the fixing hole 12 and the button 11, the limiting block 10 and the button 11 are constrained through the fixing hole 12, so that the button 11 and the limiting block 10 can only move up and down along the fixing hole 12, the top of the limiting block 10 is pressed in the limiting groove 9 by the spring 13, thereby limiting the rotation of the hinge pipe 8 to limit the rotation of the fixing block 4; the top of the limiting block 10 is moved out of the limiting groove 9 by pressing the button 11, thereby eliminating the rotation limitation of the hinge pipe 8, so as to conveniently adjust the included angle between the fixing block 4 and the handle 5, when the cleaning process encounters a difficult-to-clean sanitary dead angle, the mop plate 1 can be better placed in the vertical dead angle for cleaning, thereby improving the cleaning effect.

[0024] The fixed block 4 is provided with an n-shaped fixing frame 14 away from the side of the button 11, the bottom end of the fixing frame 14 is installed on the top surface of the fixed block 4, the handle 5 is provided with a protection groove 15, the protection groove 15 is opened along the side wall of the handle 5 to the other side of the handle 5, the fixing frame 14 is located in the protection groove 15, the fixing frame 14 is provided with two L-shaped buckle plates 16 made of elastic material, the top ends of the two buckle plates 16 are respectively installed on the top of the two sides of the fixing frame 14, the fixed block 4 below the fixing frame 14 is provided with an inverted T-shaped adjusting groove 17, the bottoms of the two buckle plates 16 are respectively sleeved on the two sides of the adjusting groove 17, the fixed groove 3 is provided with a buckle groove 18 on the two sides of the fixed groove 3, the buckle groove 18 is in communication with the fixed groove 3, the bottom end of the buckle plate 16 is sleeved with the top of the buckle groove 18, the shape of the top of the buckle groove 18 and the shape of the bottom end of the buckle plate 16 are matched, the fixed block 4 is buckled in the buckle groove 18 through the buckle plate 16, by pressing the two buckle plates 16 in the fixing frame 14, the buckle plate 16 can be driven to rotate, so that the bottom end of the buckle plate 16 moves out of the buckle groove 18, so as to facilitate the removal of the fixed block 4 from the fixed groove 3, that is, the fixed block 4 is taken out of the mop plate 1, the protection groove 15 is used for protecting the fixing frame 14 and the buckle plate 16, avoiding that the buckle plate 16 is accidentally touched to cause the fixed block 4 to slide out of the fixed groove 3; when it is needed to remove the fixed block 4 from the fixed groove 3, the button 11 is pressed first, the handle 5 is controlled to rotate around the fixed block 4, so that the fixing frame 14 moves out of the protection groove 15, and then the two buckle plates 16 are pressed to take out the fixed block 4 from the fixed groove 3.

[0025] Specifically, the fixed groove 3 adopts a convex-shaped groove structure, the number of the fixed groove 3 is not less than two, the plurality of fixed grooves 3 are opened along one end of the mop plate 1 to the other end of the mop plate 1, the plurality of fixed grooves 3 are equally spaced on the mop plate 1, the cross-sectional shape of the fixed block 4 is matched with the cross-sectional shape of the fixed groove 3, by changing the buckle position of the fixed block 4, a plurality of use schemes can be provided.

[0026] Please refer to Figure 8The top surface of the dragging plate 1 is provided with two L-shaped connecting grooves 19, the two connecting grooves 19 are parallel to the fixed groove 3, and the fixed groove 3 is located between the two connecting grooves 19. The dragging plate 1 is provided with two n-shaped clamping plates 20, the inner sides of the two clamping plates 20 are respectively sleeved on the two connecting grooves 19, the inner side structure of the clamping plate 20 is matched with the inner cavity structure of the connecting groove 19, the end of the cloth surface 2 is located between the outer side of the clamping plate 20 and the dragging plate 1, and the cloth surface 2 is clamped and fixed on the dragging plate 1 through the clamping plate 20. The one end of the connecting groove 19 of the dragging plate 1 is provided with a guide groove 21, the guide groove 21 is communicated with the connecting groove 19, the groove diameter of the guide groove 21 gradually decreases from one end of the connecting groove 19 to the other end of the connecting groove 19, so that the clamping plate 20 is conveniently sleeved on the dragging plate 1, and the cloth surface 2 wrapped on the dragging plate 1 is conveniently fixed.

[0027] In the embodiment, the handle 5 is provided with a slot 22 on the side close to the button 11, the slot 22 is provided from the top end of the handle 5 to the middle of the handle 5, a screw pipe 23 is arranged in the slot 22, two insertion holes are respectively provided on the bottom sides of the screw pipe 23, a round block 24 is movably sleeved in the insertion hole, the diameter of the round block 24 is matched with the hole diameter of the insertion hole, one end of the round block 24 is installed on the side wall of the slot 22, and the screw pipe 23 is hinged on the handle 5 through the round block 24. A screw rod 25 is threadedly sleeved on the middle upper portion of the screw pipe 23, one end of the screw rod 25 is installed on the bottom end of the dragging rod 6, and the dragging rod 6 and the screw rod 25 are twisted to conveniently assemble and disassemble the dragging rod 6.

[0028] Please refer to Figure 4 and 5 , the outer shape of the hinge pipe 8 adopts a stepped circular structure, the top end of the hinge pipe 8 is installed on the bottom end of the handle 5, the outer wall diameter of the top of the hinge pipe 8 is not greater than the outer wall diameter of the bottom of the hinge pipe 8, the fixed block 4 is provided with a sleeve hole 26, the hinge pipe 8 is movably sleeved in the sleeve hole 26, the shape of the sleeve hole 26 is matched with the outer shape of the hinge pipe 8, and the sleeve hole 26 is communicated with the fixed hole 12. Since the outer wall diameter of the top of the hinge pipe 8 is not greater than the outer wall diameter of the bottom of the hinge pipe 8, and the shape of the sleeve hole 26 is matched with the outer shape of the hinge pipe 8, the handle 5 is hinged on the fixed block 4 through the hinge pipe 8.

[0029] In the embodiment, the middle of the handle 5 is provided with a hand holding groove 27, the hand holding groove 27 is provided from one end side wall of the handle 5 to the other end side wall of the handle 5, the hand holding groove 27 is communicated with the through hole 7, so as to conveniently hold the handle 5 and press the button 11 passing through the through hole 7.

[0030] The assembly and use method of the product is as follows: as Figures 1 to 8As shown, first, the inverted mop plate 1 is lifted so that the fixed groove 3 opened on the supporting plate 1 faces the ground, the clean cloth 2 is laid on the supporting plate 1, the guide groove 21 guides the clamping plate 20, and the inner side of the clamping plate 20 is inserted into the connecting groove 19; at the same time, the cloth 2 is pressed and fixed between the outer side of the clamping plate 20 and the supporting plate 1 by the clamping plate 20. Then, according to the need of cleaning work, the fixing block 4 is inserted into one of the fixed grooves 3, the buckle plate 16 is assembled into the buckle groove 18, and the fixing block 4 is buckled and fixed into the fixed groove 3 of the mop plate 1; then, the mop rod 6 is installed on the screw pipe 23 by tightening the screw rod 25 on the screw pipe 23. Then, the cleaner operates by holding the mop rod 6, so that the cloth 2 slides on the ground to realize the cleaning work of the ground; it should be noted that if the stubborn stains cannot be completely removed during cleaning, the screw rod 25 is loosened, the mop rod 6 and the screw rod 25 are removed from the screw pipe 23, and the hand-held groove 27 is opened in the middle of the handle 5, so that the handle 5 is held for cleaning work; if the sanitary dead angle is difficult to clean during cleaning, the handle 5 needs to be rotated, the button 11 is pressed, the top of the limiting block 10 is moved out of the limiting groove 9, the rotation of the hinge pipe 8 is limited, the included angle between the fixing block 4 and the handle 5 is adjusted, and the cleaner can more conveniently clean the sanitary dead angle.

[0031] According to the embodiment, the handle 5 and the mop rod 6 are detachably connected, so that the cleaner holds the mop rod 6 to clean the ground in a standing position, and holds the handle 5 to clean the contaminated area of the ground after removing the mop rod 6, so as to realize the dual-purpose function. Moreover, the handle 5 is hinged to the fixing block 4 by the hinge pipe 8, so that the handle 5 can rotate horizontally around the mop plate 1 to facilitate cleaning of the dead angle, thereby improving the cleaning effect. The limiting groove 9 is opened on the hinge pipe 8, the limiting block 10 is arranged in the limiting groove 9, the button 11 is installed on the limiting block 10, and the spring 13 is arranged below the button 11, so as to limit the rotation of the handle 5 and the hinge pipe 8, and facilitate the control of the rotation of the handle 5.

[0032] The above-described embodiments are only preferred embodiments of the utility model, and do not limit the scope of the utility model, so that equivalent changes or modifications made according to the structure, features and principles described in the utility model patent range shall be included in the utility model application patent range.

Claims

1. A dual-purpose mop comprising a mop plate (1) and a cloth cover (2) wrapped around the lower part of the mop plate (1), characterized in that: The top surface of the mop plate (1) is provided with a fixing groove (3), the fixing groove (3) is buckled with a fixing block (4), the side, away from the cloth surface (2), of the fixing block (4) is provided with a handle (5), and the handle (5) is detachably provided with a mop rod (6); the handle (5) is provided with a through hole (7), the lower portion of the through hole (7) is provided with a hinge pipe (8), the inner cavity of the hinge pipe (8) is communicated with the through hole (7), the handle (5) is hingedly connected to the fixing block (4) through the hinge pipe (8), the bottom side wall of the hinge pipe (8) is provided with a plurality of limiting grooves (9) at equal intervals, a plurality of limiting blocks (10) are arranged in the limiting grooves (9) respectively, the top of the limiting block (10) is matched with the shape of the limiting groove (9), the hinge pipe (8) is movably sleeved with a button (11), the top of the button (11) is arranged to pass through the through hole (7), the limiting block (10) and the bottom of the button (11) are of an integral structure, the fixing block (4) is provided with a fixing hole (12), the cross-sectional shape of the fixing hole (12) is matched with the cross-sectional shape of the combined structure of the limiting block (10) and the button (11), the bottom of the limiting block (10) is sleeved in the fixing hole (12), and the fixing hole (12) is provided with a spring (13), the two ends of the spring (13) are arranged on the bottom surface of the fixing hole (12) and the button (11) respectively.

2. The dual-purpose mop of claim 1, wherein: The side, away from the button (11), of the fixing block (4) is provided with an n-shaped fixing frame (14), the bottom end of the fixing frame (14) is arranged on the top surface of the fixing block (4), the handle (5) is provided with a protection groove (15), the protection groove (15) is arranged to pass through one side of the handle (5) to the other side of the handle (5) along the side wall of the handle (5), the fixing frame (14) is arranged in the protection groove (15), the fixing frame (14) is provided with two L-shaped clamping plates (16) made of elastic material, the top ends of the two clamping plates (16) are arranged on the two sides of the top of the fixing frame (14) respectively, the fixing block (4) below the fixing frame (14) is provided with an inverted T-shaped adjusting groove (17), the bottoms of the two clamping plates (16) are sleeved on the two sides of the adjusting groove (17) respectively, the mop plate (1) on the two sides of the fixing groove (3) is provided with a clamping groove (18) respectively, the clamping groove (18) is communicated with the fixing groove (3), the bottom of the clamping plate (16) is sleeved with the top of the clamping groove (18), and the top of the clamping groove (18) is matched with the shape of the bottom of the clamping plate (16).

3. The dual-purpose mop of claim 1, wherein: The fixing groove (3) adopts a convex-shaped groove structure, the number of the fixing grooves (3) is not less than two, the plurality of fixing grooves (3) are arranged from one end of the mop plate (1) to the other end of the mop plate (1) at equal intervals, and the cross-sectional shape of the fixing block (4) is matched with the cross-sectional shape of the fixing groove (3).

4. The dual-purpose mop of claim 1, wherein: Two L-shaped connecting grooves (19) are formed on the top surface of the mop plate (1), the two connecting grooves (19) are parallel to the fixing groove (3), and the fixing groove (3) is located between the two connecting grooves (19); two n-shaped clamping plates (20) are fitted on the mop plate (1) in an interference fit, the inner sides of the two clamping plates (20) are respectively fitted on the two connecting grooves (19), the inner side structure of the clamping plate (20) is consistent with the inner cavity structure of the connecting groove (19), the end of the cloth surface (2) is located between the outer side of the clamping plate (20) and the mop plate (1), and the cloth surface (2) is clamped and fixed on the mop plate (1) through the clamping plate (20); the mop plate (1) at one end of the connecting groove (19) is obliquely provided with a guide groove (21), the guide groove (21) is in communication with the connecting groove (19), and the groove diameter of the guide groove (21) gradually decreases from one end of the connecting groove (19) to the other end of the connecting groove (19).

5. The dual-purpose mop of claim 1, wherein: The handle (5) is provided with a slot (22) on one side close to the button (11), the slot (22) is formed from the top end of the handle (5) to the middle of the handle (5), a screw pipe (23) is arranged in the slot (22), two insertion holes are formed on the bottom of the screw pipe (23), a circular block (24) is movably fitted in the insertion holes, the diameter of the circular block (24) is consistent with the hole diameter of the insertion holes, one end of the circular block (24) is installed on the side wall of the slot (22), and the screw pipe (23) is hinged to the handle (5) through the circular block (24).

6. The dual-purpose mop of claim 1, wherein: The outer shape of the hinge pipe (8) is a stepped circular structure, the top end of the hinge pipe (8) is installed on the bottom end of the handle (5), the outer wall diameter of the top of the hinge pipe (8) is not greater than the outer wall diameter of the bottom of the hinge pipe (8), the fixing block (4) is provided with a sleeve hole (26), the hinge pipe (8) is movably fitted in the sleeve hole (26), the shape of the sleeve hole (26) is consistent with the outer shape of the hinge pipe (8), and the sleeve hole (26) is in communication with the fixing hole (12).

7. The dual-purpose mop of claim 1, wherein: The middle of the handle (5) is provided with a hand holding groove (27), the hand holding groove (27) is formed from one end of the side wall of the handle (5) to the other end of the side wall of the handle (5), and the hand holding groove (27) is in communication with the through hole (7).

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