CN210190974U

CN210190974U - Easily-pulled drawing pin

Info

Publication number: CN210190974U
Application number: CN201920645378.5U
Authority: CN
Inventors: Yu Zheng; 郑宇�; Hongqiang Kong; 孔洪强; Peng Yin; 阴鹏; Tao Li; 李涛
Original assignee: Shenzhen Maxypro Industrial Product Scheme Co Ltd
Current assignee: Shenzhen Maxypro Industrial Product Scheme Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-03-27
Anticipated expiration: 2029-05-07

Abstract

The utility model provides an easily pull out drawing pin, including the head of a nail and nail pole, the head of a nail includes central part, deformation portion and outer fringe part, deformation portion connects the central part with between the outer fringe part, the nail pole with central part fixed connection, deformation portion is including memory elastic material layer, the border of outer fringe part with there is deformation space between the internal surface of deformation portion, make during the atress of deformation portion, the direction turn-ups perk that the nail pole can be kept away from to the outer fringe part orientation to make the drawing pin conveniently pulled out.

Description

Easily-pulled drawing pin

Technical Field

The utility model relates to a drawing pin especially relates to an easily pull out drawing pin.

Background

The drawing pin is a common small tool in daily office supplies and is used for fixing thin articles such as drawings on objects such as blackboards and the like, but the traditional drawing pin has many defects in the using process, for example, the pin cap of the traditional drawing pin is tightly attached to the object and is not convenient to pull; when pulled up, the fingers and nails are easily damaged, and if the thumbtack is tilted up by a tool such as a sharp tool, the nailed objects and the thumbtack are easily damaged.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an easily-pulled drawing pin for solving the problem that the conventional drawing pin is not easy to pull.

The utility model discloses an easily pull out drawing pin, including the head of a nail and nail pole, the head of a nail includes central part, deformation portion and outer fringe part, the deformation portion is connected the central part with between the outer fringe part, the nail pole with central part fixed connection, the deformation portion is including memory elastic material layer, the border of outer fringe part with there is deformation space between the internal surface of deformation portion, make during the deformation portion atress, the direction turn-ups perk of nail pole can be kept away from to the outer fringe part orientation.

In a preferred embodiment, the memory elastic material layer comprises a memory metal sheet, and the thickness of the memory elastic material layer is in the range of 10um-1500 um.

In a preferred embodiment, when the pushpin is in the natural state with the outer surface of the nut facing the surface of the platform, the central portion provides a first support point for contact with the surface of the platform, the peripheral portion or the deformation portion provides a second support point for contact with the surface of the platform, and the angle between the line between the first support point and the second support point and the axis of the pin shaft is less than 90 °. More preferably, the first support point is located at the top of the central portion and/or the second support point is located at the edge of the outer rim portion.

In a preferred embodiment, the outer surface of the nail cap is a conical surface, or the outer surface of the nail cap is a concave surface which is concave towards the nail rod.

In a preferred embodiment, when the drawing pin is pressed, and the outer edge portion is turned up and tilted towards a direction away from the pin rod, the contact position of the deformation portion and the placement platform is lower than the connection position of the pin rod and the central portion, and an avoidance space is formed between the inner surface of the central portion and the pin rod.

In a preferred embodiment, the central portion and/or the outer rim portion also comprises a layer of memory elastic material, and the layer of memory elastic material of the central portion and/or the outer rim portion is integrally formed with the layer of memory elastic material of the deformation portion.

In a preferred embodiment, the outer edge further includes a protective layer, and the protective layer and the memory elastic material layer are stacked, or the memory elastic material layer is embedded in the protective layer.

In a preferred embodiment, the central portion and/or the deformation portion also comprises a protective layer, and the protective layer of the central portion and/or the deformation portion is integrally formed with the protective layer of the outer peripheral portion.

In a preferred embodiment, the protective layer comprises a rubber layer or a silicone layer. The utility model has the advantages that:

the utility model discloses an easily pull out drawing pin through adopting the whole outer fringe part of memory elastic material preparation nail cap or nail cap to rationally set up the shape of nail cap, make to be the cavity form between the plane at the edge place of nail cap and the internal surface of nail cap, the outward flange of nail cap can turn-ups perk when the drawing pin is pressed, makes the utility model discloses a drawing pin is conveniently pulled out.

Drawings

FIG. 1 is a schematic diagram of a longitudinal cross-sectional view of a pushpin as it would normally be pinned to a surface of an object in one embodiment.

FIG. 2 is a schematic diagram showing a longitudinal cross-sectional view of a pushpin being pressed and pulled according to an embodiment.

FIG. 3 is a schematic diagram of the tack in its natural state with the outer surface of the nut facing the surface of the storage platform according to one embodiment.

FIG. 4 is a schematic view of another embodiment of a pushpin in its natural state with the outer surface of the nut facing the surface of the storage platform.

FIG. 5 is a schematic longitudinal sectional view of a drawing pin according to another embodiment.

FIG. 6 is a schematic longitudinal sectional view of a pushpin according to still another embodiment.

Description of the drawings:

the nail head comprises a nail head 1, a central part 11, a deformation part 12, an outer edge part 13, a first supporting point 12, a second supporting point 13, a nail rod 2, a deformation space 3, a protective layer 4 and a memory elastic material layer 5.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, the structure and use of the easy-pull drawing pin are shown in fig. 1 and 2, wherein fig. 1 is a schematic view of the drawing pin normally driven on the surface of an object, and fig. 2 is a schematic view of the drawing pin when it is about to be pulled out. As can be seen from fig. 1 and 2, the drawing pin comprises a pin cap 1 and a pin shank 2, the pin cap 1 comprises a central portion 11, a deformation portion 12 and an outer edge portion 13, the deformation portion 12 is connected between the central portion 11 and the outer edge portion 13, the pin shank 2 is fixedly connected with the central portion 11, the deformation portion 12 comprises a memory elastic material layer 5 (as shown in fig. 5 and 6), and a deformation space 3 is formed between the edge of the outer edge portion 13 and the inner surface of the deformation portion 12, so that the outer edge portion 13 can turn up and tilt towards the direction far away from the pin shank when the deformation portion 12 is stressed.

When the drawing pin is required to be pulled up, as shown in fig. 2, only the central part 11 of the pin cap 1 needs to be pressed hard, because the deformation part 12 of the pin cap 1 comprises the memory elastic material layer 5, the memory elastic material layer 5 can be strained under the action of stress, when the strain reaches a critical value, the memory elastic material layer 5 can turn up towards the direction of turning up edges far away from the pin rod, and then the outer edge part 13 is driven to turn up towards the direction of turning up edges far away from the pin rod, and the turned-up outer edge part 13 provides a force application point for pulling up the drawing pin, so that the drawing pin is convenient to be pulled up. It will be appreciated that in other embodiments, as shown in figure 5, the central portion 11 and/or the outer rim portion 13 may also include a layer of memory elastic material 5, and the layer of memory elastic material 5 of the central portion 11 and/or the outer rim portion 13 may be integrally formed with the layer of memory elastic material 5 of the deformation portion 12.

In another embodiment, in order to make the memory elastic material layer 5 have good elastic effect, the memory elastic material layer 5 comprises a memory metal sheet, and the thickness of the memory elastic material layer 5 is in the range of 10um-1500um, if the thickness is less than 10um, the strength of the drawing pin is insufficient, which affects the service life of the drawing pin; if the thickness is larger than 1500um, the elasticity of the memory elastic material layer 5 is poor, a large force is needed to press the central part 11 of the nail cap 1, and the outer edge part 13 of the nail cap 1 can be turned over and tilted, so that the drawing pin is inconvenient to pull up. In a preferred embodiment, the thickness of the memory elastic material layer 5 ranges from 100um to 1000 um.

In addition, as shown in fig. 2, when the drawing pin is pressed, and the outer edge part 13 is turned up towards the direction far away from the pin rod, the contact position of the deformation part 12 and the object placing platform is lower than the connection position of the pin rod 2 and the central part 11, and an avoidance space is formed between the inner surface of the central part 11 and the pin rod 2.

In addition, to address the problem of conventional pushpins that are scattered naturally on the ground or landing surface, where the stem 2 is almost vertically upward and can easily penetrate into the sole, in one embodiment, as shown in fig. 3 and 4, when the pushpin is in the natural state with the outer surface of the nut facing the landing surface, the central portion 11 provides a first support point 14 in contact with the landing surface, the outer rim portion or deformation provides a second support point 15 in contact with the landing surface, and the line between the first support point 14 and the second support point 15 is at an angle β of less than 90 ° to the axis of the stem 2.

In the embodiment shown in fig. 3, the outer surface of the nut 1 is a conical surface, and the taper angle α of the conical surface refers to the angle between two generatrices of the axial section of the cone, because of the taper angle α, when the drawing pin of the embodiment is scattered on the ground, a certain angle exists between the pin rod 2 and a vertical surface, and the drawing pin is not vertically upward, so that the problem that the drawing pin is easy to prick into a sole is solved.

It will be appreciated that the outer surface of the pin of the present invention is not limited to a conical surface, and in other embodiments, it may have other shapes, such as the embodiment shown in fig. 4, where the outer surface of the pin is recessed inwardly in the direction of the axis of the pin shaft, the first support point 14 is located at the top of the central portion 11, and the second support point 15 is located at the edge of the outer edge portion 13, which also solves the problem of the pin not being easily pulled out and the pin easily penetrating the sole.

In addition, in order to prevent the outer edge of the nut 1 from hurting the hand when pulling up the drawing pin, in one embodiment, a protective layer 4 may be provided at the outer edge of the nut 1, and the protective layer 4 may cover the outer edge of the nut 1. The utility model discloses not prescribing a limit to the position that sets up of protective layer 4, as long as this protective layer 4 can cover the outer fringe part of nail cap 1 and just fall into the protection scope of present case. In other embodiments, the protective layer 4 may be disposed on the upper surface of the nut 1, as shown in fig. 5; alternatively, the protective layers 4 can be arranged on the upper surface and the lower surface of the nail cap 1, namely, the whole nail cap 1 is coated; alternatively, the protective layer 4 may be provided only at the outer edge portion of the nut 1. In a particular embodiment, the protective layer 4 is made of a soft elastic material. More specifically, the protective layer includes rubber or silicone. It should be noted that, in some embodiments, as shown in fig. 5 and fig. 6, the protection layer 4 and the memory elastic material layer 5 may be disposed in a stacked manner, and in other embodiments, the memory elastic material layer 5 may be embedded in the protection layer 4.

In the embodiment shown in fig. 5, the shape of the memory elastic material layer 5 is "M", that is, at the position of the central part 11 of the nut 1, the memory elastic material layer 5 is recessed downwards, and the protective layer 4 thereon fills the recess, so that the design improves the softness at the position of the central part 11 of the nut 1, and improves the pressing hand feeling, thereby enabling the drawing pin to be pulled up more conveniently.

In addition, because the outer edge part 13 of the nail cap 1 is provided with the protective layer 4, the protective layer 4 has certain elasticity and friction force, the defect that the nail cap 1 cannot be in close contact with a fixed object can be improved, and the picture nail can be nailed more firmly. In addition, if the protective layer 4 is not provided on the outer edge portion 13 of the nut 1, if the nut 1 is made of a metal material, the metal material directly contacts the fixed object, and if the metal material is affected with moisture, rust is easily left on the fixed object, so that the protective layer 4 is provided on the outer edge of the nut 1, and rust can be prevented from being left on the fixed object.

In addition, as shown in fig. 6, in another embodiment, the whole outer surface of the nut 1 is provided with the protective layer 4, but only the position of the deformation part 12 of the nut 1 is provided with the memory elastic material layer 5, when the central part 11 of the nut 1 is pressed with force, the memory elastic material layer 5 positioned at the deformation part 12 of the nut 1 is strained under the action of stress, when the strain reaches a critical value, the memory elastic material layer 5 turns up and tilts towards the direction away from the shank, and then the outer edge part 13 is driven to turn up and tilt towards the direction away from the shank, and the tilted outer edge part 13 provides a force application point for pulling up the drawing pin, so that the drawing pin is pulled up conveniently.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an easily pull out drawing pin, its characterized in that, includes the head of a nail and follows closely the pole, the head of a nail includes central part, deformation portion and outer fringe portion, deformation portion connects the central part with between the outer fringe portion, follow closely the pole with central part fixed connection, deformation portion is including memory elastic material layer, the border of outer fringe portion with there is deformation space between the internal surface of deformation portion, make during deformation portion atress, the direction turn-ups perk of nail pole can be kept away from to the outer fringe portion.

2. The easy-pull drawing pin according to claim 1, wherein the memory elastic material layer comprises a memory metal sheet, and the thickness of the memory elastic material layer ranges from 10um to 1500 um.

3. The easy-pull drawing pin according to claim 1, wherein when the drawing pin is pressed and the outer edge portion is turned up and tilted in a direction away from the pin shaft, the contact position of the deformation portion and the placement platform is lower than the connection position of the pin shaft and the central portion, and an escape space is formed between the inner surface of the central portion and the pin shaft.

4. The easy pull drawing pin of claim 1 wherein the central portion provides a first support point for contact with the surface of the place holder and the peripheral portion or the deformation portion provides a second support point for contact with the surface of the place holder when the drawing pin is in a natural state with the outer surface of the pin cap disposed towards the surface of the place holder, a line between the first support point and the second support point forming an angle of less than 90 ° with the axis of the pin shaft.

5. The easy pull pin of claim 4, wherein the first support point is located at the top of the central portion and/or the second support point is located at the edge of the outer rim portion.

6. The easy pull drawing pin according to claim 1, wherein the outer surface of the pin cap is a conical surface or the outer surface of the pin cap is a concave surface which is concave toward the pin shank.

7. The easy pull pin of claim 1 wherein the central portion and/or the peripheral portion also includes a layer of memory elastomer material, and the layer of memory elastomer material of the central portion and/or the peripheral portion is integrally formed with the layer of memory elastomer material of the deformable portion.

8. The easy-pull drawing pin according to any one of claims 1 to 7, wherein the outer edge portion further comprises a protective layer, the protective layer and the memory elastic material layer are arranged in a laminated manner, or the memory elastic material layer is embedded in the protective layer.

9. The easy pull tack of claim 8, wherein the central portion and/or the deformed portion also comprises a protective layer, and the protective layer of the central portion and/or the deformed portion is integrally formed with the protective layer of the outer rim portion.

10. The easy pull tack of claim 8, wherein the protective layer comprises a rubber layer or a silicone layer.