Dustpan with telescopic comb teeth

Abstract

The utility model belongs to the technical field of dustpan structures, and particularly relates to a dustpan with telescopic comb teeth, which comprises a dustpan main body and a handle rod, a connecting base is arranged above the dustpan body, a handle rod is slidably arranged on the connecting base, and a push base is fixed to the lower end of the handle rod and limits the handle rod to be separated from the connecting base. Comb teeth are arranged above the dustpan main body in a sliding manner, a longitudinal channel is formed in the dustpan main body, a lifting part is arranged in the channel in a sliding manner, and the comb teeth and the lifting part are connected through a transmission part; when the handle rod is in a vertical state, the handle rod is pushed downwards, the push seat at the lower end of the handle rod drives the lifting part to move, and the comb teeth are synchronously driven to retract into the dustpan body through the transmission part; an elastic piece is arranged on the handle rod and / or the lifting piece, and the elastic piece provides force for the lifting piece and / or the handle rod to reset to the high position. The dustpan with the telescopic comb teeth is stable in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of dustpan structures, in particular to a dustpan with telescopic comb teeth. Background Art

[0002] A dustpan is a shovel-shaped tool and a cleaning utensil for holding garbage. When cleaning, garbage such as paper scraps and hair is swept into the dustpan with a broom. However, filamentous materials such as hair and fibers and some sticky garbage easily stick to the broom and need to be cleaned manually. If they are not cleaned, the cleaning effect of the broom will be greatly affected.

[0003] In order to clean the garbage on the broom, the existing broom is designed with a dustpan with comb teeth, so that the hair, fiber and other filaments stuck on the broom can be scraped off by the comb teeth, so that the broom can continue to sweep; however, after long-term use, more garbage will accumulate on the comb teeth, which still needs to be cleaned manually, and it is difficult to dump the garbage together with other garbage when dumping it, which brings inconvenience to the user.

[0004] Therefore, a dustpan with retractable comb teeth has appeared on the market, such as Chinese patent CN202223294538.7, a retractable comb-tooth dustpan. It includes a dustpan body with an opening at one end and a comb-tooth portion arranged on the dustpan body. A cleaning mechanism that can automatically remove dirt on the comb-tooth portion is arranged on the dustpan body. The cleaning mechanism includes a baffle vertically arranged at one end of the comb-tooth portion close to the opening of the dustpan body, a plug hole arranged on the baffle that is consistent with the number of teeth on the comb-tooth portion and corresponds to each other, and a driving part that drives the comb-tooth portion to retract and move. When the comb-tooth portion is extended, its comb teeth extend to the side of the plug hole close to the opening, and when it is retracted, the comb teeth are completely retracted to the side of the plug hole away from the opening. This product can solve the problem of comb teeth extending and retracting, but its structure also has certain shortcomings: its driving comb tooth rotation structure adopts a fast rotation driving method to drive, which has high requirements on the precision of parts and installation precision, otherwise jamming will occur; this structure is not suitable for high-frequency use. Summary of the invention

[0005] The utility model aims to provide a dustpan with stable structure and retractable comb teeth.

[0006] The purpose of the utility model is achieved in this way:

[0007] A dustpan with retractable comb teeth comprises a dustpan body and a handle bar; a connecting seat is arranged above the dustpan body, a handle bar is slidably arranged on the connecting seat, a push seat is fixedly arranged at the lower end of the handle bar, and the push seat limits the handle bar from being separated from the connecting seat; comb teeth are slidably arranged above the dustpan body, a longitudinal channel is provided in the dustpan body, a lifting member is slidably arranged in the channel, and the comb teeth and the lifting member are connected by a transmission member; when the handle bar is in a vertical state, the handle bar is pushed downward, and the push seat at the lower end of the handle bar drives the lifting member to move, and synchronously drives the comb teeth to retract into the dustpan body through the transmission member; an elastic member is arranged on the handle bar and / or the lifting member, and the elastic member gives the lifting member and / or the handle bar a force to reset to a high position;

[0008] The transmission component comprises at least one transmission gear, and the transmission gear connects the lifting member and the comb teeth; through the transmission gear, the lifting member moves up and down and drives the comb teeth to enter or extend out of the dustpan body.

[0009] The connecting seat is hinged on the hinge seat of the dustpan body, and a skirt is arranged at the rear of the dustpan body or the rear of the hinge seat; after the handle bar is folded, the push seat of the handle bar cannot be separated from the connecting seat under the limitation of the skirt.

[0010] The connecting seat is provided with a first protrusion and a second protrusion; when the handle rod is in a vertical state, the first protrusion abuts against the dustpan body to keep the handle rod in a vertical state; when the handle rod is in a folded state, the second protrusion abuts against the dustpan body to keep the handle rod in a folded state.

[0011] The transmission gear is rotatably arranged in the dustpan body; the lifting member is provided with a first tooth portion, which is meshed with the transmission gear; the comb teeth are provided with a second tooth portion, which is meshed with the transmission gear.

[0012] It includes a plurality of mutually fixed transmission gears, a plurality of transmission gear portions rotate synchronously, one transmission gear meshes with a first gear portion, and at least one transmission gear meshes with a second gear portion; or, it includes a plurality of mutually meshing transmission gears, one transmission gear meshes with a first gear portion, and at least one transmission gear meshes with a second gear portion.

[0013] The lower end of the push seat is provided with a third tooth portion, and when the handle bar is in a vertical state, the third tooth portion is connected to the first tooth portion; during the downward movement of the handle bar, the first tooth portion and the third tooth portion sequentially drive the transmission gear to rotate.

[0014] A step portion is arranged on the channel or the dustpan body, and an annular convex edge matched with the step portion is arranged on the lifting member, and the elastic member pushes the annular convex edge of the lifting member to press against the step portion.

[0015] The utility model comprises a plugging head, wherein the channel is formed in the plugging head, and after the lifting member and the elastic member are sequentially placed in the channel, the plugging head is fixed on the dustpan body.

[0016] The utility model comprises a cover which is fixed on the upper part of the dustpan body, and a gap for the comb teeth to move laterally is formed between the cover and the dustpan body.

[0017] The end of the cover is provided with a hole for the teeth of the comb to extend out.

[0018] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0019] 1. The utility model adopts a gear rack structure as the driving part. The gear structure is one of the most widely used transmission mechanisms in machinery because it can be used to transmit motion and power between any two axes in space. It has the characteristics of high transmission power efficiency, accurate transmission ratio, long service life, safe and reliable operation, etc., thereby effectively ensuring the transmission stability between the lifting parts and the comb teeth. A slight error in the assembly of the gear meshing position does not affect the mutual drive, the assembly accuracy requirement is not high, and it is conducive to long-term use.

[0020] 2. The lower end of the push seat of the utility model is provided with a third tooth portion. When the handle bar is in a vertical state, the third tooth portion is connected to the first tooth portion; when the handle bar moves downward, the first tooth portion and the third tooth portion sequentially drive the transmission gear to rotate. The first tooth portion and the third tooth portion are connected to form a longer tooth portion. By lengthening the tooth portion, the distance that the comb teeth extend and retract is lengthened. The longer comb teeth portion can better clean the debris on the broom.

[0021] 3. The utility model includes a plug, and the channel is formed in the plug. By independently setting the plug, it is convenient for manufacturers to assemble. During assembly, the lifting member and the elastic member are first placed in the channel in sequence, and then the three are installed together on the dustpan body, and finally the plug is fixed on the dustpan body. By the way of self-assembly, the assembly efficiency is improved. Preferably, the plug and the dustpan body are connected by a snap connection or a screw fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the structural schematic diagrams of the utility model in which the comb teeth are in an extended state;

[0023] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0024] Figure 3 This is the second structural schematic diagram of the utility model in the comb teeth extended state;

[0025] Figure 4 It is a schematic diagram of the internal structure of the utility model in a comb teeth extended state;

[0026] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at B;

[0027] Figure 6 It is a structural schematic diagram of the comb teeth of the utility model in a retracted state;

[0028] Figure 7 This is a schematic diagram of the internal structure of the utility model in a comb teeth retracted state;

[0029] Figure 8 yes Figure 7 A schematic diagram of the enlarged structure at C;

[0030] Fig. 9 It is a structural schematic diagram of the utility model in a folded state;

[0031] Fig.10 It is a schematic diagram of the internal structure of the utility model in a folded state;

[0032] Fig.11 yes Fig.10 A schematic diagram of the structure at D of FIG.

[0033] Fig.12 It is one of the explosion structure schematic diagrams of the utility model;

[0034] Fig.13 yes Fig.12 A schematic diagram of the structure at E of FIG.

[0035] Fig.14 This is the second schematic diagram of the explosion structure of the utility model.

[0036] In the figure: 1- dustpan body; 10- hinged seat; 101- skirt; 11- cover; 19- step portion; 2- comb teeth; 21- tooth portion; 22- second tooth portion; 3- handle rod; 31- connecting seat; 311- first protrusion; 312- second protrusion; 32- push seat; 321- third tooth portion; 4- plug; 41- channel; 5- lifting member; 51- first tooth portion; 52- annular convex edge; 6- transmission gear; 9- spring. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings. Figure 1-14 As shown:

[0038] A dustpan with retractable comb teeth comprises a dustpan body 1 and a handle rod 3; a connecting seat 31 is arranged above the dustpan body 1, and the handle rod 3 is slidably arranged on the connecting seat 31, and a push seat 32 is fixedly arranged at the lower end of the handle rod 3, and the push seat 32 limits the handle rod 3 from being separated from the connecting seat 31. Preferably, the push seat 32 is fixed to the handle rod by stamping deformation or rivet or screw fixing, and the connecting seat 31 is sleeved on the handle rod 3, and an annular convex edge or convex point is arranged on the circumference of the push seat. Under the action of the annular convex edge, the push seat moves in the connecting seat and cannot be separated from the connecting seat, thereby preventing the handle rod from being separated from the connecting seat; preferably, the handle rod and the connecting seat cannot rotate, and the push seat and the connecting seat can be provided with longitudinal grooves so that the push seat can only slide up and down in the connecting seat.

[0039] Comb teeth 2 are slidably arranged above the dustpan body 1, and a longitudinal channel 41 is provided inside the dustpan body 1, and a lifting member 5 is slidably arranged inside the channel 41, and the comb teeth 2 and the lifting member 5 are connected through a transmission component; when the handle bar 3 is in a vertical state, the handle bar 3 is pushed downward, and the push seat 32 at the lower end of the handle bar 3 drives the lifting member 5 to move, and synchronously drives the comb teeth 2 to retract into the dustpan body 1 through the transmission component; an elastic member is arranged on the handle bar and / or the lifting member, and the elastic member gives the lifting member and / or the handle bar a force to reset to a high position; the transmission component includes at least one transmission gear 6, and the transmission gear 6 connects the lifting member 5 and the comb teeth 2; through the transmission gear 6, the lifting member 5 moves up and down and drives the comb teeth 2 to enter or extend out of the dustpan body 1. By setting at least one transmission gear and utilizing the stable characteristics of gear transmission, the connection between the comb teeth and the lifting member is made more stable. The elastic member is preferably a spring, soft rubber or other components.

[0040] The connecting seat 31 is hinged on the hinge seat 10 of the dustpan body 1, and a skirt 101 is provided at the rear of the dustpan body or the hinge seat; after the handle bar 3 is folded, the push seat 32 of the handle bar cannot be separated from the connecting seat 31 under the limitation of the skirt 101.

[0041] The connecting seat 31 is provided with a first protrusion 311 and a second protrusion 312; when the handle rod is in a vertical state, the first protrusion 311 abuts against the dustpan body 1 to keep the handle rod 3 in a vertical state; when the handle rod is in a folded state, the second protrusion 312 abuts against the dustpan body 1 to keep the handle rod in a folded state.

[0042] The transmission gear 6 is rotatably arranged in the dustpan body 1 ; the lifting member 5 is provided with a first tooth portion 51 , which meshes with the transmission gear 6 ; the comb teeth 2 are provided with a second tooth portion 22 , which meshes with the transmission gear 6 .

[0043] As a preference, it comprises a plurality of mutually fixed transmission gears 6, such as Fig.13As shown, a plurality of transmission gears are fixed to each other and are rotatably arranged in the dustpan body through a rotating shaft, and a plurality of transmission gear portions 6 rotate synchronously, one of which is meshed with the first gear portion, and at least one of which is meshed with the second gear portion. Alternatively, it includes a plurality of transmission gears meshed with each other, one of which is meshed with the first gear portion, and at least one of which is meshed with the second gear portion. The scheme of a plurality of transmission gears meshing with each other is not shown in the figure, and it can be understood that a plurality of transmission gears mesh with each other to form a gear set, the input gear of the gear set meshes with the first gear portion, and the output gear of the gear set meshes with the second gear portion. Both output gears are acceptable, and manufacturers can choose one according to actual needs.

[0044] The lower end of the push seat 32 is provided with a third tooth portion 321. When the handle bar 3 is in a vertical state, the third tooth portion 321 is connected to the first tooth portion 51. When the handle bar 3 moves downward, the first tooth portion 51 and the third tooth portion 321 sequentially drive the transmission gear 6 to rotate. The first tooth portion 51 and the third tooth portion 321 are connected to extend the length of the tooth portion, thereby increasing the moving distance of the comb teeth, so that the comb teeth can be extended longer, which is conducive to the comb teeth cleaning the debris on the broom.

[0045] A step portion 19 is provided on the channel or the dustpan body, and an annular ridge 52 cooperating with the step portion 19 is provided on the lifting member 5. The elastic member pushes the annular ridge of the lifting member against the step portion. Preferably, a plug 4 is included, and the channel 41 is formed in the plug 4. By independently providing the plug 4, it is convenient for manufacturers to assemble. During assembly, the lifting member and the spring are first placed in the channel in sequence, and then the three are installed together on the dustpan body, and finally the plug is fixed on the dustpan body. The assembly efficiency is improved by the whole assembly method. Preferably, the plug and the dustpan body are connected by a snap connection method or a screw fixing method. Preferably, the lifting member only moves up and down in the channel and cannot rotate relative to each other. The lifting member and the channel can be provided with longitudinal notches so that the lifting member can only slide up and down in the channel.

[0046] The dustpan comprises a cover 11 which is fixed on the dustpan body 1 , and a gap is formed between the cover 11 and the dustpan body 1 for the comb teeth 2 to move laterally.

[0047] The end of the cover 11 is provided with a hole through which the teeth 21 of the comb teeth extend.

[0048] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustpan with retractable comb teeth, comprising a dustpan body (1) and a handle bar (3); characterized in that: A connecting seat (31) is arranged above the dustpan body (1), a handle bar (3) is slidably arranged on the connecting seat (31), a push seat (32) is fixedly arranged at the lower end of the handle bar (3), and the push seat (32) limits the handle bar (3) from being separated from the connecting seat (31); comb teeth (2) are slidably arranged above the dustpan body (1), a longitudinal channel (41) is provided in the dustpan body (1), a lifting member (5) is slidably arranged in the channel (41), and the comb teeth (2) and the lifting member (5) are connected via a transmission member; when the handle bar (3) is in a vertical state, the handle bar (3) is pushed downward, the push seat (32) at the lower end of the handle bar drives the lifting member (5) to move, and synchronously drives the comb teeth (2) to retract into the dustpan body (1) via the transmission member; an elastic member is arranged on the handle bar and / or the lifting member, and the elastic member gives the lifting member and / or the handle bar a force to reset to a high position; The transmission component comprises at least one transmission gear (6), and the transmission gear (6) connects the lifting member (5) and the comb teeth (2); through the transmission gear (6), the lifting member (5) moves up and down and drives the comb teeth (2) to enter or extend out of the dustpan body (1).

2. The dustpan with retractable comb teeth according to claim 1, characterized in that: The connecting seat (31) is hinged on the hinge seat (10) of the dustpan body, and a skirt (101) is provided at the rear of the dustpan body or the rear of the hinge seat; after the handle bar is folded, the push seat (32) of the handle bar cannot be separated from the connecting seat (31) under the limitation of the skirt (101).

3. The dustpan with retractable comb teeth according to claim 2, characterized in that: The connecting seat (31) is provided with a first protrusion (311) and a second protrusion (312); when the handle bar (3) is in a vertical state, the first protrusion (311) abuts against the dustpan body (1) to keep the handle bar (3) in a vertical state; when the handle bar (3) is in a folded state, the second protrusion (312) abuts against the dustpan body (1) to keep the handle bar (3) in a folded state.

4. The dustpan with retractable comb teeth according to claim 1, 2 or 3, characterized in that: The transmission gear (6) is rotatably arranged in the dustpan body (1); the lifting member (5) is provided with a first tooth portion (51), and the first tooth portion (51) is meshed with the transmission gear (6); the comb teeth (2) are provided with a second tooth portion (22), and the second tooth portion (22) is meshed with the transmission gear (6).

5. The dustpan with retractable comb teeth according to claim 4, characterized in that: It comprises a plurality of mutually fixed transmission gears (6), wherein a plurality of transmission gear portions rotate synchronously, wherein one transmission gear is meshed with a first gear portion, and at least one transmission gear is meshed with a second gear portion; or, it comprises a plurality of mutually meshed transmission gears, wherein one transmission gear is meshed with a first gear portion, and at least one transmission gear is meshed with a second gear portion.

6. The dustpan with retractable comb teeth according to claim 4, characterized in that: The lower end of the push seat (32) is provided with a third tooth portion (321); when the handle bar (3) is in a vertical state, the third tooth portion (321) is connected to the first tooth portion (51); when the handle bar (3) moves downward, the first tooth portion (51) and the third tooth portion (321) sequentially drive the transmission gear (6) to rotate.

7. The dustpan with retractable comb teeth according to claim 1 or 2 or 3 or 5 or 6, characterized in that: A step portion (19) is provided on the channel or the dustpan body, and an annular convex edge (52) matching the step portion (19) is provided on the lifting member (5), and the elastic member pushes the annular convex edge of the lifting member (5) to press against the step portion.

8. The dustpan with retractable comb teeth according to claim 7, characterized in that: It comprises a plug, in which the passage is formed, and after a lifting member (5) and an elastic member are sequentially placed in the passage, the plug (4) is fixed on the dustpan body (1).

9. The dustpan with retractable comb teeth according to claim 1 or 2 or 3 or 5 or 6 or 8, characterized in that: The dustpan comprises a cover (11) which is fixed on the top of a dustpan body (1), and a gap is formed between the cover (11) and the dustpan body (1) for the comb teeth (2) to move laterally.

10. The dustpan with retractable comb teeth according to claim 9, characterized in that: The end of the sealing cover (11) is provided with a hole through which the teeth of the comb teeth (2) extend.

Images