CN110251013B - Dustpan with variable opening size - Google Patents

Abstract

The dustpan with the variable opening size relates to the technical field of sanitary tools, and comprises a dustpan body and a handle, wherein the handle comprises a vertical rod and a handle, the dustpan body comprises a bottom plate, a back plate and side plates, the bottom plate and the side plates are made of stretchable elastic materials, the back plate is made of hard plastics or metal materials, the vertical rod and the handle are of a hollow structure, a long-strip-shaped balancing weight is embedded into the bottom plate, a locking hole is formed in the rear end of the balancing weight, a locking rod is inserted into the locking hole, the rear end of the locking rod is connected with a pull rope, a slidable sliding block is arranged on the handle, and the tail end of the pull rope; when dumping rubbish, promote the slider and can pull the stay cord and take the locking pole out from the locking hole, at this moment under the balancing weight action of gravity, the bottom plate is down tensile to be out of shape and drive the curb plate and draw close toward the centre to make the opening of dustpan diminish. Unlike the solutions that rely on a movable baffle to change the size of the opening, the dustpan does not have the problem of accumulating fine dust and dirt.

Description

Dustpan with variable opening size

Technical Field

The invention relates to the technical field of sanitary tools, in particular to a dustpan with a variable opening.

Background

The dustpan is a common sanitary tool in daily life, the structure of the dustpan has not changed obviously for many years, and due to the limitation of thinking and design space of the dustpan, the dustpan is improved and innovated in recent years.

Chinese utility model patent document CN205697612U discloses a dustpan convenient to dump rubbish, and it is equipped with adjustable fender at dustpan body opening part, and adjustable fender is articulated respectively with both sides board, realizes the regulation of opening size through rope pulling adjustable fender (see fig. 1 and 2 in the literature). The dustpan with the structure seems to solve the problem that partial garbage is easy to fall out of the garbage can when the garbage can is dumped due to the small opening of the garbage can and the large opening of the dustpan, but the situation in practical application is that: when the amount of the garbage in the dustpan is large, the garbage can be extruded out from the upper part of the dustpan to the ground in the process of pulling the movable baffle to reduce the opening, in addition, a few fine garbage and dust are easily accumulated between the movable baffle and the side plate and at the hinged part of the movable baffle and the side plate, so that the normal opening and closing of the movable baffle are influenced, and meanwhile, the fine garbage and dust can generate unpleasant odor after being accumulated for a long time, so that the indoor environment comfort is influenced. In other words, the dustpan has a structural design defect, and after the dustpan is used for a period of time, the accumulated garbage causes difficulty in stably realizing the function of adjusting the size of the opening, and the problem that the accumulated garbage smells is also derived.

Disclosure of Invention

The invention aims to provide a dustpan with a variable opening, which is convenient for dumping garbage and can avoid the problem of accumulating fine garbage and dust between a movable baffle and a side plate and at the hinged part of the movable baffle and the side plate.

In order to achieve the purpose, the invention adopts the following technical scheme: a dustpan with a variable opening size comprises a dustpan body and a handle, wherein the handle comprises a vertical rod and a handle, the dustpan body comprises a bottom plate, a back plate and two side plates, the back plate and the side plates are arranged above the bottom plate, the number of the side plates is two, the rear ends of the two side plates are respectively correspondingly connected with the left side end and the right side end of the back plate, the periphery of the bottom plate is connected with the bottom ends of the side plates and the back plate, a lug seat is arranged on the outer side wall of the back plate, a mounting hole for mounting the handle is formed in the lug seat, the vertical rod is inserted into the mounting hole, and the handle is connected to the top end of the vertical rod;

the bottom plate and the side plates are made of stretchable elastic materials, the back plate is made of hard plastics or metal materials, the upright posts and the handle are of a hollow structure, a strip-shaped balancing weight is embedded in the bottom plate, the bottom plate is fixedly connected with the balancing weight, and the balancing weight is located at the center of the bottom plate and extends backwards from the front part to the rear part of the bottom plate;

the rear end of the balancing weight is provided with a locking hole, a locking rod is inserted into the locking hole, the bottom end of the lug seat is flush with the bottom plate, the bottom of the lug seat is horizontally provided with a threading hole, the rear end of the locking rod extends into the threading hole, a spring for pushing the locking rod to prevent the front end of the locking rod from falling out of the locking hole is arranged in the threading hole, the rear end of the locking rod is connected with a pull rope, and the pull rope sequentially penetrates into an inner cavity of the handle through the threading hole, the mounting hole and an inner cavity of the vertical rod;

the handle is provided with a sliding block which can slide, and the tail end of the pull rope is connected with the sliding block;

when dumping garbage, the slide block is pushed to pull the pull rope and draw the locking rod out of the locking hole, at the moment, under the action of gravity of the balancing weight, the bottom plate stretches and deforms downwards and drives the side plates to draw close towards the middle, so that the opening of the dustpan is reduced.

Furthermore, two rows of notch grooves are formed in the counterweight block at intervals along the length direction of the counterweight block, the two rows of notch grooves are symmetrically formed in the left side and the right side of the counterweight block, supporting rods are arranged in the notch grooves, the head ends of the supporting rods are hinged to the side walls of the notch grooves, all the supporting rods correspondingly extend and unfold towards the left side and the right side of the counterweight block, and the supporting rods and the counterweight block are embedded in the bottom plate together.

Furthermore, the tail end of the supporting rod is hinged with a lug, and the lug penetrates out of the upper part of the bottom plate and then is inserted into the side plate from the bottom end of the side plate and is fixedly connected with the side plate

Wherein, in the length direction of the pull rope, the position of the pull rope to turn is provided with a roller and/or a roller, the roller and/or the roller is used as a fixed pulley, and the pull rope is wound on the roller and/or the roller to change the direction.

Preferably, the thickness of the side plates becomes thicker from front to back.

Preferably, be equipped with the metal covering in the through wires hole, metal covering and through wires hole interference fit, the rear end of lock pole stretches into in the inner chamber of metal covering, the stay cord penetrates in the mounting hole again through the inner chamber of metal covering.

Wherein, the weight of the anterior segment of the balancing weight is greater than the weight of the posterior segment.

Further, the stay cord is wire rope, the balancing weight is the lead block, the locking pole adopts stainless steel material to make, the metal covering is the copper sheathing, the front end chamfer of locking pole is so that insert in the locking hole more easily.

Preferably, the bottom plate and the side plate are made of rubber.

The dustpan with the variable opening size has a structure completely different from that of the prior art, specifically, the balancing weight is locked through the locking rod, the dustpan can be used normally as a common dustpan when garbage is swept into the dustpan, when the garbage needs to be dumped, the pull rope is pulled by pushing the slide block at the handle, the pull rope drives the locking rod to retreat and compress the spring, after the locking rod retreats from the locking hole, under the self-weight action of the balancing weight and the garbage in the dustpan, the bottom plate of the dustpan sags and stretches, and meanwhile, the bottom plate pulls the side plates on the left side and the right side to approach to the middle, so that the opening of the dustpan is reduced, and the garbage in the dustpan is conveniently dumped into the garbage can. After the garbage is dumped and is accomplished, place the dustpan smooth subaerial, loosen the slider again, under the effect of spring back of force, the locking pole will be pushed into again in the locking hole. Different from the existing scheme of changing the size of the opening by means of the movable baffle, the part of the dustpan, which is in contact with the garbage (namely the inner wall surface of the dustpan body), has a flat surface as the traditional dustpan, and the problem that the garbage and dust are accumulated between the movable baffle and the side plate and at the hinged part of the movable baffle and the side plate is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of a dustpan with a variable opening size according to the present invention;

FIG. 2 is a schematic view of the whole structure of the dustpan body in a normal open state;

FIG. 3 is a comparison view of the dustpan body before and after the opening size is changed, wherein the dotted line shows the position after the opening is reduced;

FIG. 4 is a schematic view of the whole structure of the dustpan body in a state that the opening is reduced;

FIG. 5 is a top view of the connection structure between the weight and the support rod;

FIG. 6 is a front view of the connection between the weight and the strut;

FIG. 7 is a partial enlarged view of portion A of FIG. 1;

FIG. 8 is a partial enlarged view of portion B of FIG. 1;

in the figure:

1-dustpan body 2-handle 3-counterweight

4-locking rod 5-pull rope 6-slide block

7-support rod 8-projection 9-roller

10-metal sleeve 1 a-bottom plate 1 b-back plate

1 c-side plate 1 d-lug seat 2 a-vertical rod

2 b-grip 3 a-locking hole 1d 1-mounting hole

1d 2-threading hole.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, unless otherwise explicitly stated or limited, terms such as "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Further, in the present invention, unless otherwise expressly specified or limited, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.

Fig. 1-8 show the overall and detailed structure of a dustpan with variable opening size according to the invention, as shown, the dustpan with the variable opening comprises a dustpan body 1 and a handle 2, wherein the handle 2 comprises a vertical rod 2a and a grip 2b, the dustpan body 1 comprises a bottom plate 1a, a back plate 1b and two side plates 1c, wherein the back plate 1b and the side plates 1c are arranged above the bottom plate 1a, the number of the side plates 1c is two, the rear ends of the two side plates 1c are respectively and correspondingly connected with the left side end and the right side end of the back plate 1b, the periphery of the bottom plate 1a is connected with the bottom ends of the side plates 1c and the back plate 1b, a lug seat 1d is arranged on the outer side wall of the back plate 1b, a mounting hole 1d1 for mounting a handle is formed in the lug seat 1d, the upright rod 2a is inserted into the mounting hole 1d1, and the handle 2b is connected to the top end of the upright rod 2 a.

Different from a common dustpan, in the present invention, the bottom plate 1a and the side plate 1c are made of stretchable elastic materials (for example, rubber materials, silica gel materials, PU or TPU materials, etc.), the back plate 1b is made of hard plastics or metal materials, the upright rod 2a and the handle 2b are hollow structures, a long strip-shaped balancing weight 3 is embedded in the bottom plate 1a, the bottom plate 1a is fixedly connected with the balancing weight 3, and the balancing weight 3 is located at the center of the bottom plate 1a and extends backwards from the front part of the bottom plate 1a to the rear part.

Be equipped with locking hole 3a at the rear end of balancing weight 3, insert locking bar 4 in locking hole 3a, the bottom and bottom plate 1a parallel and level of lug seat 1d, through wires hole 1d2 has been seted up to the bottom level of lug seat 1d, the rear end of locking bar 4 stretches into in the through wires hole 1d2, be equipped with in through wires hole 1d2 and be used for pushing away the spring that leans on locking bar 4 in order to prevent its front end to deviate from locking hole 3a, be connected with stay cord 5 at the rear end of locking bar 4, stay cord 5 is in proper order through wires hole 1d2, mounting hole 1d1 and pole setting 2a inner chamber penetrate to the inner chamber of handle 2 b.

The handle 2b is provided with a sliding block 6 which can slide, and the tail end of the pull rope 5 is connected with the sliding block 6.

When needs dump rubbish, grab the handle of dustpan with the hand, mention the dustpan, then promote slider 6 and can stimulate stay cord 5 and take out locking pole 4 from locking hole 3a, at this moment under the gravity of balancing weight 3 and the interior rubbish dead weight effect of dustpan, bottom plate 1a is down tensile deformation and is dragging curb plate 1c and drawing close to towards the centre to make the opening of dustpan diminish, so that empty the garbage bin with the rubbish in the dustpan. After the garbage is dumped, the dustpan is placed on the flat ground, the sliding block 6 is loosened, and the locking rod is pushed into the locking hole 3a again under the action of the resilience force of the spring. Different from the scheme that the opening size is changed by the movable baffle in the background technology, the part of the dustpan, which is in contact with the garbage (namely the inner wall surface of the dustpan body 1), has a flat surface as the traditional dustpan, and the problem that the garbage and dust are finely crushed and accumulated between the movable baffle and the side plate and at the hinged part of the movable baffle and the side plate can be solved.

On the basis of the above embodiment, as shown in fig. 5 and 6, the present invention further includes two rows of notch grooves spaced apart from each other on the counterweight block 3 along the length direction thereof, the two rows of notch grooves are symmetrically disposed on the left and right sides of the counterweight block, the notch grooves are provided with support rods 7 (the support rods 7 may be made of stainless steel material, such as stainless steel wires with a diameter of 1.5 mm), the head ends of the support rods 7 are hinged to the side walls of the notch grooves, all the support rods 7 extend and expand toward the left and right sides of the counterweight block 3, and the support rods 7 and the counterweight block 3 are embedded in the bottom plate 1a together. The strut 7 has at least the following functions: when bottom plate 1a adopts softer material (for example, 1-2mm shao shi hardness is 40 TPU or silica gel piece) preparation to form, if there is water on the floor, bottom plate 1a is easily inhaleed on the floor, at this moment upwards pull bottom plate 1a when mentioning the dustpan easily and lead to its deformation, it is not very convenient to use, and increase above-mentioned branch 7 back, under the prerequisite of taking out in locking pole 4 is not followed locking hole 3a, branch 7 can provide fine support for bottom plate 1a, difficult appearance is because of water adsorbs the condition of pulling bottom plate 1a deformation when mentioning the dustpan up, it is light convenient more to use. Because above-mentioned adopt articulated connected mode between branch 7 and the balancing weight 3, after locking pole 4 is taken out from locking hole 3a, balancing weight 3 downstream in-process, branch 7 is disposed 3 pullings down of piece, and branch 7 rotates around its position with balancing weight 3 articulated this moment, and the bottom plate 1a of dustpan becomes "V" type as shown in fig. 3 and 4, and the opening of dustpan diminishes simultaneously to the rubbish that will empty.

In addition, as shown in fig. 6, the end of the supporting rod 7 is hinged with a convex block 8, the convex block 8 penetrates out of the upper part of the bottom plate 1a and is inserted into the side plate 1c from the bottom end of the side plate 1c to be fixedly connected with the side plate 1c, so that the side plate 1c can be better driven to approach the middle through the supporting rod 7 and the bottom plate 1a when the counterweight block 3 moves downwards, the stress of the bottom plate 1a is reduced, the situation that the permanent deformation of the bottom plate 1a cannot restore due to long-term pulling is relieved, and the service life of the bottom plate 1a is better ensured.

Since the pull rope 5 needs to be threaded upwards from the bottom of the dustpan to the handle 2b, the pull rope inevitably needs to pass through the corner, and in order to avoid scraping at the corner, as shown in fig. 1, 7 and 8, rollers and/or rollers 9 are arranged at the position where the pull rope 5 needs to turn in the length direction of the pull rope 5, the rollers and/or rollers 9 play the role of fixed pulleys, and the pull rope 5 is wound on the rollers and/or rollers 9 to change the direction.

In order to ensure that the opening of the dustpan is easier to elastically deform (i.e. the opening is easier to narrow), the thickness of the side plate 1c is preferably gradually increased from front to back, and the weight of the front section of the balancing weight 3 is preferably larger than that of the rear section. In addition, in order to ensure the smoothness of the front and back movement of the locking rod 4, as shown in fig. 7, a metal sleeve 10 is arranged in the threading hole 1d2, the metal sleeve 10 is in interference fit with the threading hole 1d2, the rear end of the locking rod 4 extends into the inner cavity of the metal sleeve 10, and the pull rope 5 passes through the inner cavity of the metal sleeve 10 and then penetrates into the installation hole 1d 1.

Finally, in order to guarantee the use durability, when the actual production was used, stay cord 5 chose for use wire rope, and lead block was selected to balancing weight 3, and locking pole 4 chose for use stainless steel material to make, and copper sheathing was selected to metal sheathing 10, simultaneously in the front end chamfer of locking pole 4 so that it can insert in locking hole 3a more easily.

Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.

Claims (7)

1. The dustpan with the variable opening size comprises a dustpan body (1) and a handle (2), wherein the handle (2) comprises a vertical rod (2a) and a grip (2b), the dustpan body (1) comprises a bottom plate (1a), a back plate (1b) and side plates (1c), the back ends of the two side plates (1c) are respectively and correspondingly connected with the left side end and the right side end of the back plate (1b), the periphery of the bottom plate (1a) is connected with the bottom ends of the side plates (1c) and the back plate (1b), a lug seat (1d) is arranged on the outer side wall of the back plate (1b), a mounting hole (1d1) for mounting the handle is formed in the lug seat (1d), the vertical rod (2a) is inserted into the mounting hole (1d1), and the grip (2b) is connected to the top end of the vertical rod (2a), the method is characterized in that:

the bottom plate (1a) and the side plate (1c) are made of stretchable elastic materials, the back plate (1b) is made of hard plastics or metal materials, the upright stanchions (2a) and the handle (2b) are of hollow structures, a long strip-shaped balancing weight (3) is embedded into the bottom plate (1a), the bottom plate (1a) is fixedly connected with the balancing weight (3), and the balancing weight (3) is located at the center of the bottom plate (1a) and extends backwards from the front part to the rear part of the bottom plate (1 a);

two rows of notch grooves are formed in the counterweight block (3) at intervals along the length direction of the counterweight block, the two rows of notch grooves are symmetrically formed in the left side and the right side of the counterweight block, supporting rods (7) are arranged in the notch grooves, the head ends of the supporting rods (7) are hinged to the side walls of the notch grooves, all the supporting rods (7) correspondingly extend and expand towards the left side and the right side of the counterweight block (3), and the supporting rods (7) and the counterweight block (3) are embedded in the bottom plate (1a) together;

the tail end of the supporting rod (7) is hinged with a lug (8), and the lug (8) penetrates out of the upper part of the bottom plate (1a) and then is inserted into the side plate (1c) from the bottom end of the side plate (1c) and is fixedly connected with the side plate (1 c);

the rear end of the balancing weight (3) is provided with a locking hole (3a), a locking rod (4) is inserted into the locking hole (3a), the bottom end of the lug seat (1d) is flush with the bottom plate (1a), a threading hole (1d2) is horizontally formed in the bottom of the lug seat (1d), the rear end of the locking rod (4) extends into the threading hole (1d2), a spring used for pushing the locking rod (4) to prevent the front end of the locking rod from being separated from the locking hole (3a) is arranged in the threading hole (1d2), the rear end of the locking rod (4) is connected with a pull rope (5), and the pull rope (5) sequentially penetrates into the inner cavity of the handle (2b) through the threading hole (1d2), the mounting hole (1d1) and the inner cavity of the upright rod (2 a);

a sliding block (6) capable of sliding is arranged on the handle (2b), and the tail end of the pull rope (5) is connected with the sliding block (6);

when dumping rubbish, promote slider (6) can pull stay cord (5) and take locking pole (4) out from locking hole (3a), this moment be in under balancing weight (3) action of gravity, bottom plate (1a) down tensile deformation and drive curb plate (1c) and draw close toward the centre to make the opening of dustpan diminishes.

2. The dustpan with variable opening size as claimed in claim 1, wherein: in the length direction of the pull rope (5), a roller and/or a roller (9) are arranged at the position where the pull rope (5) is required to turn, the roller and/or the roller (9) is used as a fixed pulley, and the pull rope (5) is wound on the roller and/or the roller (9) to change the direction.

3. The dustpan with variable opening size as claimed in claim 1, wherein: the thickness of the side plate (1c) becomes thicker gradually from front to back.

4. The dustpan with variable opening sizes as claimed in any one of claims 1 to 3, wherein: be equipped with metal covering (10) in threading hole (1d2), metal covering (10) and threading hole (1d2) interference fit, the rear end of lock pole (4) stretches into in the inner chamber of metal covering (10), stay cord (5) penetrate in mounting hole (1d1) through the inner chamber of metal covering (10) again.

5. The dustpan with variable opening size as claimed in claim 3, wherein: the weight of the front section of the balancing weight (3) is greater than that of the rear section thereof.

6. The dustpan with variable opening size as claimed in claim 4, wherein: stay cord (5) are wire rope, balancing weight (3) are the lead block, locking pole (4) adopt stainless steel material to make, metal covering (10) are the copper sheathing, the front end chamfer of locking pole (4) so that insert in locking hole (3a) more easily.

7. The dustpan with variable opening size as claimed in claim 1, wherein: the bottom plate (1a) and the side plate (1c) are made of rubber.

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