KR200279169Y1 - A receiving box for delivery goods of the front door - Google Patents

Abstract

The present invention discloses a delivery receipt of the front door. The present invention is secured to the inner surface of the front door and has a front plate having an article inlet slot in communication with the article inlet, a cover having an article takeout slot facing the front plate and opening and closing the article take-out slot and for locking or unlocking the cover. A rear plate having a rocker, and two side plates each consisting of two unit pieces foldably assembled by hinge means, and the free ends of each unit being foldably connected by hinge means to corresponding sides of the front plate and the rear plate to face each other. And upper and lower plates each consisting of two unit pieces foldably assembled by hinge means, the free ends of each unit being foldably connected by hinge means to the upper and lower sides of the front and rear plates so as to face each other. Elastic means for elastic biasing so that the units of the side plate and the upper and lower plates are folded together In this case, it consists of an alarm means for issuing a predetermined alarm sound.

The present invention allows the entry of various delivery items such as milk or newspapers, and can completely block the entry port of the front door, thereby reliably preventing theft accidents using the entry port, and minimize the appearance deterioration and entrance obstacles in the room. You can.

Description

A receiving box for delivery goods of the front door}

The present invention relates to a receiving box installed in the front door of a multi-unit house such as an apartment or a villa to easily receive delivery items such as milk or newspapers, and more particularly, to a minimum volume in ordinary times. It is related to the receipt of the delivered goods of the front door, which is folded to close the entrance door of the front door completely and then unfolded by the volume only when the delivered goods are introduced from the outside, so that the delivered goods can be safely received in the stored state.

In general, daily necessities such as newspapers, milk or yogurt are purchased by consumers directly as needed, but most of them are traded between sellers and buyers by daily delivery to the homes requested by the dealership. .

In particular, these daily necessities are very important items in modern life and are purchased and used in most households.

However, the items delivered to the home are usually left in front of the front door of the purchase home or delivered by calling the buyer directly, causing a number of problems.

In other words, if you leave the delivery in front of the front door, there is a great risk of loss or theft, which can lead to liability disputes between the seller and the buyer. In addition, if the delivery items are delivered directly to the buyer, each household may press the doorbell early in the early morning to wake up the sleeping buyer, resulting in a delay in the delivery time, and the buyer may require unnecessary dawn weather. Not only that, but it may cause inconvenience to neighbors.

This problem is particularly prominent in apartments such as apartments and villas, where several households use a common passage and a door is directly connected to the interior and exterior.

As a result, as shown in FIG. 1, an appropriately sized product inlet T which connects the inside and the outside to the front door D of an apartment or a villa, such as a newspaper or milk, is formed. By simply putting various delivery items (G) into the indoors of each home, the delivery items (G) are safely supplied without fear of loss, theft and invasion of privacy.

However, such an entrance T of the front door (D) is required to freely open and close the outer and inner cover (C1) (C2) for delivery of the article (G), through which various tools from the outside through the interior It is possible to easily release the door lock (door lock) by inputting, and various crimes such as theft accidents are frequently generated.

On the other hand, in order to solve this problem, a number of so-called anti-theft goods inlet is provided to maintain the original function of the goods inlet, so that the room can not be observed, the Republic of Korea Registered Utility Model Publication No. 20-0190886 and the public utility For example, there may be mentioned Shinan Publication No. 2000-0016033 and Registration Utility Model Publication No. 0124585.

Korean Utility Model Registration No. 20-0190886 covers a cover that secures the cover in a closed state by forming a catching hole in the cover to be pivotally fixed to the outer supporting member, and engaging the cover hole in the inner circumferential surface of the inner supporting member. It is designed to prevent unnecessary entry of foreign materials through the entry port and to prevent theft accidents using the entry port.

However, such a conventional inlet double lock device has to unlock the cover in accordance with the estimated delivery time in order to receive the requested delivery goods, it is accompanied by the complexity of having to lock the cover again after receiving the goods or when going out.

In addition, there is a risk of forgetting to release and lock the cover, in this case, it is impossible to put the delivery goods or the risk of theft accident using the entry port is inevitable.

Korean Utility Model Publication No. 2000-0016033 has a container-type cap installed on the inner surface of a front door to enclose an inner cover of an article inlet, and forms an opening on one side of the main surface of the cap and closes the opening by its own weight. The cover is installed so that the opening is opened only when the article is pushed in from the outside, thereby preventing theft accident using the article inlet.

However, it is also possible to push a stick or the like into the article entry opening to open the opening of the cap, so that a separate lock release tool with a small camera, for example, can be inserted into the house while the opening of the cap is opened. It did not contribute much to the prevention of theft accidents using the input port.

In particular, since the cap is attached to the front door and protruding, it not only greatly damages the interior aesthetics, but also causes a considerable obstacle to the use of the front door, such as being hit upon entry.

On the other hand, registered utility model No. 0124585, hinges are assembled on both sides of the inner fixing plate member of the inlet opening, hinge assembly of the rear wall to the rear end of the two side wall, and connected to the inner fixing plate by a spring, By assembling the shielded upper wall hinged to the upper side of the inner fixing plate, the split side wall is folded by the spring to block the entry port, and the split side wall is unfolded by the input force only when the delivery item is input from the outside. The article is to be introduced into the room through the opening of the.

By the way, such a delivery inlet can minimize the installation volume, so that the appearance of the interior and the obstacles can be eliminated, but there was a problem that can not prevent theft accident using the article inlet.

That is, the product input path is composed of only two folding side walls, the rear wall and the shielded upper wall, and the lower part is opened for discharging the goods. In order to receive the goods put in the room, the input path part has to be separated from the ground by a certain height. It is difficult to reliably prevent theft accident because the lock release tool with a small camera can be inserted into the room after opening and fixing the input path part using a stick or the like.

In addition, when the external force is removed after the article is put in, the partition side wall is folded to the initial position by the elasticity of the spring. For example, when the delivered article is a relatively large article such as 1000 ml pack of milk, the article is The opening of the input path was opened between the doors, and there was a risk of damage to the article, such as the milk carton being crushed.

In addition, since the delivered goods are placed on the floor of the entrance of the room, foreign matters such as dust are attached and contaminated.

The present invention was devised to solve the above-mentioned problems, and it is possible to insert various kinds of delivery items such as milk or newspaper, while completely preventing the entry door of the front door to prevent theft accident by using the entry hole. The purpose is to provide a receipt for the delivery of the front door.

Another object of the present invention is to be folded to a minimum volume in normal times, to be in close contact with the front door, and to expand the interior by expanding the volume only when the goods are put in from the outside, thereby to improve the interior aesthetics and to enter and exit through the front door. It is to provide a delivery box at the front door that can minimize the obstacle of the door.

Still another object of the present invention is to provide a delivery item receiving box at the front door which can prevent contamination of the delivery item due to foreign matters on the floor of the entrance by safely storing the delivery item introduced from the outside.

Another object of the present invention is that the door can be easily recognized by hearing as well as visually when the goods are delivered, and can prevent the intruder's indoor intrusion in advance by issuing an alarm when forced removal from the outside by the offender It is to provide the invoice for the delivery of the door.

1 is a cross-sectional view schematically showing a front door provided with a delivery goods inlet,

Figure 2 is a perspective view showing the receipt of the delivery of the front door according to the present invention,

Figure 3 is an exploded perspective view showing the delivery of goods in accordance with the present invention,

4A and 4B are cross-sectional views of the coupled state of FIG. 3,

Figure 5 is an exploded perspective view showing an extract of the folded portion of the present invention delivery box;

6A and 6B are a plan view and a sectional view of the coupled state of FIG. 5;

Figure 7 is a schematic cross-sectional view showing a state in which a warning device for forced demolition recognition is attached to the receipt of the present invention,

8 is a cross-sectional view schematically showing a state in which the melody device for notification of delivery of goods is further attached to the receiving box of the present invention;

9A and 9B are a perspective view and a cross-sectional view schematically showing another embodiment of the present invention,

10a and 10b is a plan view schematically showing another embodiment of the present invention,

11 is an exploded perspective view showing another embodiment of the folding portion of the present invention receiving box.

<Explanation of symbols for main parts of drawing>

10: Previous Edition 11: Goods Inlet Slot

20: thick plate 21: take-out slot

22: cover 24: rocker

30: side plate 31, 32: monomer

33: hinge means 34: permanent magnet

40: top plate 41, 42: monomer

43: hinge means 50: lower plate

51, 52: unit 53: hinge means

60: alarm means 70: hinge means

80: torsion spring 90: melody means

140, 150: upper and lower plates 141, 142, 151, 152: monomers

G: Delivery Item D: Front Door

T: Inlet opening C: Outer cover

In order to achieve the above objects, the delivery item receiving box of the front door according to the present invention comprises: a front panel having a product inlet slot fixed on the inner surface of the front door and communicating with the product inlet; A rear panel disposed to face the front plate with an article takeout slot, the rear panel having a cover for opening and closing the article takeout slot and a locker for selectively locking or unlocking the cover; Two side plates each consisting of two unit pieces foldably assembled by hinge means, the free ends of each unit being foldably connected by hinge means to corresponding opposite sides of the front plate and the rear plate to face each other. panel); The upper and lower plates each consist of two unit pieces which are foldable by hinge means, and the free ends of each unit are foldably connected to the corresponding upper and lower sides of the front plate and the rear plate to face each other by hinge means. (top lower panel); Elastic means for elastic biasing so that the unit pieces of each side plate, the upper plate and the lower plate are folded together; And installed in any one of the above elements, the alarm means for issuing a predetermined alarm sound when a shock of a predetermined size or more; characterized in that it comprises a.

According to one preferred feature of the present invention, the upper plate and the lower plate, the unit is made of a substantially trapezoidal shape consisting of a hexagon connected to each of the long sides by the hinge means to ensure that the receiving goods regardless of the volume of the delivered goods.

Accordingly, the present invention is capable of inserting various delivery items such as milk or newspapers, while completely blocking the entrance of the front door, and issuing a city alarm when an intruder enters the city. It can be prevented.

In addition, it is folded to a minimum volume in normal times and adheres to the front door, and it expands by the volume only when the goods are input from the outside, so that the received items are safely accommodated inside to improve the interior aesthetics and entrance through the front door. In addition to minimizing the obstacles, it is possible to prevent contamination of the delivery goods, thereby exhibiting a great effect on the safety and reliability of the entrance door entrance and improving the aesthetics of the room.

Such specific features and other advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

2 to 4, the delivery item receiving box 1 of the front door according to the present invention is a front plate (10) fixed to the inner surface of the front door (D), and the rear plate 20 disposed to face the front plate (10) And two side plates 30 and upper and lower plates 40 and 50 which are foldably assembled between the front plate 10 and the rear plate 20, and the side plates 30 and the upper and lower plates 40 and 50. Elastic means for elastically biasing them to be folded, and an alarm means 60 for sounding an alarm when an impact of a predetermined size or more is applied.

The front plate 10 is composed of a quadrangle having an article inlet slot 11 connected to the article inlet T installed at the front door D, and a plurality of the front plate D at the front door D to surround the article inlet T. It is fastened with a screw (12).

The rear plate 20 is slightly smaller than the front plate 10 so that the edge of the front plate 10 having the fastening holes 12 can be exposed to the outside for easy fastening of the front plate 10 to the front door D. Although it may be composed of, preferably the same size and shape as the front plate (10).

This is to minimize both the deterioration of the front door (D) as well as to ensure that both side plates (30) evenly close to the front door (D) like the front plate (10) when the receiving box (1) is folded. As described above, since the article take-out slot 21 of the thick plate 20 is sufficiently large, the fastening of the intake box 1 to the front door D does not cause much trouble.

This thick plate 20 has an article take-out slot 21 for withdrawing the delivered article G, which can easily take out the delivery article G put in the intake box 1. It is formed to include almost the entire portion except the edge of the back plate 20.

In addition, a cover 22 for opening and closing the article 22 of the thick plate 20 is rotatably provided, for example, by a hinge 23, and the cover 22 is preferably a rocker ( 24) the opening and closing operation is interrupted.

The locker 24 may be configured in various forms, for example, a locking pin 25 elastically biased in a release direction, and a release button 26 for fixing and releasing the locking pin 25 in a locked state. And, it may be composed of a locking ring 27 formed on the back plate 20 so that the locking pin 25 is fitted.

Here, preferably, the coupling 22 is formed on the main surface of the article takeout slot 21 of the rear plate 20 so that the cover 22 is coplanar with the rear plate 20. .

The side plate 30 is composed of two units 31 and 32 connected to each other by the hinge means 33 so that the free end of each unit 31 and 32 is formed on the front plate 10. It is foldably assembled by the hinge means 70 to the corresponding both sides of the thick plate 20, respectively.

At this time, each of the hinge means (33) (70) is located inside the side plate 30 so that the two units (31, 32) can be folded while protruding outward.

In addition, in the state in which the receiving box 1 is folded on the outer surface of the front unit 31 of each side plate 30, both side plates 30 flow along the opening and closing of the front door D to prevent noise from being generated. ) Permanent magnets 34 are installed to stably attach and support the front door (D). Such permanent magnets 34 are preferably embedded with an insertion groove 35 in the front unit 31 of the side plate 30 so as not to protrude to the outside.

Like the side plate 30, the upper plate 40 and the lower plate 50 are also composed of two units 41, 42, 51 and 52 connected by hinge means 43 and 53 so that they can be folded together. And, the free end of each of the unit (41, 42) (51, 52) is foldably assembled by the hinge means 70 on the corresponding upper and lower sides of the front plate 10 and the rear plate 20, respectively.

At this time, the hinge means 43 and 53 connecting the units 41, 42, 51, 52 of the upper plate 40 and the lower plate 50 are each unit 41, 42, 51, 52 inward. Located outside of them so that they can be folded as they enter, hinge means 70 for connecting the upper and lower plates 40 and 50 to the front plate 10 and the rear plate 20 are located therein.

On the other hand, each of the hinge means 33, 43, 53, 70 may be configured in various forms, for example, the unit body 31, 32 of the side plate 30 and the upper and lower plates 40, 50 The (41, 42) (51, 52) is composed of a conventional hinge that can be restricted from being unfolded beyond the maximum coplanar when unfolded by the article input.

That is, when the upper plate 40 is described as an example, as shown in FIGS. 5 and 6A, sleeves 44a and 45a are respectively provided to be biased to one side at one end thereof so that the opposite ends thereof contact each other when unfolded. It consists of two hinge brackets 44 and 45 and hinge pins 46 which are fitted to the sleeves 44a and 45a of these hinge brackets 44 and 45 to integrally connect both.

Each of the hinge brackets 44 and 45 may be fastened by screws 47 to the units 41 and 42 to be connected to each other as shown, or may be firmly integrally joined by welding.

Preferably, assembling grooves for inserting the hinge brackets 44 and 45 of the hinge means 43 into one side of the edge of each unit 41 and 42 to which the hinge brackets 44 and 45 are to be fixed ( 41a) 42a are formed respectively. This is to minimize the thickness of the receiving box by excluding the influence of the thickness of the hinge brackets 44 and 45 when the receiving box is folded.

The elastic means may be any shape as long as the rear plate 20 can be pulled against the front plate 10 so that the side plate 30 and the upper and lower plates 40 and 50 can be folded, but they can be easily folded and received. A torsion spring in which both ends are fixed to two hinge brackets 44 and 45 by inserting the hinge pins 46 of the hinge means 33, 43, 53 as concentrically as shown in view of aesthetics and the like. : 80) is preferable.

Although not shown separately, such elastic means are also provided in both the hinge means 33 of the two side plates 30 and the hinge means 53 of the lower plate 50.

The alarm means 60 is, for example, an impact detection sensor for detecting a shock applied to the receiving from the outside, and an alarm circuit and an alarm circuit for outputting an alarm command signal by comparing the shock value output from the shock detection sensor with a set value It may be configured as an alarm buzzer (alarm buzzer) to issue a predetermined alarm sound according to the signal, and may be installed on the inner surface of the rear unit 42 of the upper plate 40, as shown in FIG.

When the shock setting value input to the alarm circuit is set to be larger than the impact value generated by hitting a door frame (not shown) or the like when opening and closing the front door D, and a large impact is applied to the front door D or the like. Only the alarm means 60 is configured to be activated.

The alarm means 60 may be constituted by a short circuit switch having an alarm wire arranged to pass through a predetermined path, and in this case, the alarm means 60 is not subject to any shock generated by opening and closing of the front door D. .

On the other hand, the receiving box of the present invention is preferably as shown in Figure 8 may be further provided with a melody means 90 for informing the recipient of the delivery when the delivery of the article (G). The melody means 90 may be formed of a conventional melody generating circuit, for example, attached to the upper side of the inner surface of the front plate 10, and operating the contact 91 on the inner surface of the front unit 41 of the upper plate 40. It can be operated with a button projection 92 for.

That is, in the state in which the intake box is folded, the button protrusion 92 is turned off by pressing the contact point 91 of the melody means 90, and the upper plate 40 is opened by the input of the article G from the outside, so that the button protrusion ( When the 92 is separated from the contact 91 is turned on (ON) to generate a predetermined melody.

Such a receiving box of the present invention may be configured in various sizes, and preferably, is configured to a size enough to accommodate a 1000 ml milk carton.

Next, the operation of the delivery box receiving goods of the front door according to the present invention configured as described above will be described.

Figure 4a is a state in which the article (G) is not injected, the unit 31, 32, 41, 42, 51, 52 of the two side plates 30, the upper plate 40 and the lower plate 50, the hinge means ( 33) Folded at the same time to each of the front plate 10 and the rear plate 20 by the 43 and 53, and by the hinge means 70 in close contact with the front door (D) with a minimum volume. . At this time, the cover 22 of the rear plate 20 is locked in a safe state by the rocker 24.

In this state, when opening the cover (C) of the article inlet (T) from the outside and pushing the delivery article (G) such as milk into the room through the article inlet (T), the article (G) as shown in Figure 4b The rear plate 20 is pushed back by the input force of the), and according to the action of the respective hinge means (33, 43, 53) (70) of the two side plates 30 and the upper plate 40 and the lower plate 50 Units 31, 32, 41, 42, 51, 52 are unfolded at the same time.

Then, the receiving box 1 expands to a volume corresponding to the volume of the injected article G, and accommodates the delivery article G therein. At this time, the receiving box (1) of the present invention is blocked because all of its sides are put in the article (G) is not stored to the inside of the receiving box (1) without being discharged to the outside, therefore, unlike the conventional delivery goods (G) It does not fall to the floor of the porch, so it remains clean and uncontaminated.

Next, as the receiving box 1 expands, the button protrusion 92 provided in the front unit 41 of the upper plate 40 is separated from the contact point 91 of the melody means 90, and thus the melody means 90 By generating a predetermined melody in informs that the article (G) has been delivered.

Of course, even without the melody means 90, it is easy to visually recognize that the article G has been delivered as the expanded state of the receiving box 1, but even if the receipt of the article G does not take place by the occurrence of a predetermined melody, The delivery will be easier to recognize.

In addition, by the melody means 90, not only the warning means 60 can be notified of the intention of the offender in advance, but also the warning of the offender can be expected to reduce the intrusion intention.

After the article G is delivered in this way, the locker 24 provided in the rear plate 20 is released, and then the cover 22 is opened and delivered through the article take-out slot 21. By taking out G), the delivery item G can be supplied easily and safely.

After the delivery article G is taken out, the side plates 30, the upper plates 40, and each side plate by the resilience of the torsion springs 80 provided in the hinge means 33, 43, 53 of the lower plate 50. Units 31, 32, 41, 42, 51 and 52 of the 30 and the upper plate 40 and the lower plate 50 are folded back by returning to the initial state.

At the same time, the side plate 30 is stably attached to the front door (D) by the permanent magnet 34 provided on the front units 31 of the two side plates 30, thereby opening and closing the front door (D) Noise caused by the shaking of the side plate 30 or the like, which may be generated, is certainly prevented.

Next, after the receiving box 1 is folded, the cover 22 provided on the rear plate 20 is closed and locked by the locker 24. Then, the article inlet T of the front door (D) is completely blocked.

In this way, the present invention can be reliably prevented from intrusion from the outside because when the receiving box (1) is folded or inflated, and all its faces are blocked from the room. Therefore, it is not possible to put a separate stick or a tool attached to the small camera into the room through the article inlet (T), it is possible to reliably prevent theft accident using the article inlet (T).

Accordingly, when the culprit exerts an external force to forcibly remove the intake (1) from the outside, the shock sensor of the alarm means 60 detects and outputs the shock applied at this time, accordingly the shock value detected by the alarm circuit The alarm buzzer emits a predetermined alarm sound by comparing the set value with the output signal.

Therefore, it is possible to block the source of infringement of the criminal through the article inlet (T), it is possible to surely prevent theft accidents.

In addition, after taking out the delivery item (G) or in normal times, the receiving box (1) is folded to a minimum volume and stably attached to the front door (D), thereby minimizing the beauty of the interior and the entry barriers.

Meanwhile, FIG. 9 schematically illustrates another embodiment of the present invention, which is configured to be folded while protruding outward from the top plate 40 and the bottom plate 50 in addition to the side plate 30 in the above-described embodiment. In this case, a permanent magnet (not shown) for stably attaching them to the front door D when the receiving box 1 is folded also on the front units 41 and 51 of the upper plate 40 and the lower plate 50. Of course it is provided.

Embodiments of such a configuration have a thinner thickness of the intake folded state than the embodiment described above.

In addition, another embodiment of the present invention is shown in FIG. In the configuration of the above embodiments, the upper and lower units 140 and 142 of the unit 150, 142, 151, 152 is formed in a substantially trapezoidal shape, the long side is foldably connected by the hinge means 153 The upper and lower plates 140 and 150 are formed in a rectangular hexagon.

At this time, the length of the long side of each unit (141, 142) (151, 152) may be appropriately set within the length between the two side plates 30 in the folded state.

In the embodiment of this configuration, regardless of the size of the delivery article (G) can be completely blocked the article inlet (T) from the room it is possible to fundamentally block the risk of theft using the article inlet (T).

That is, in the above-described embodiment, the upper and lower plates 40 and 50 are formed in a quadrangle, and when the small delivery goods G are put in, the side plate 30 and the upper plate 40 and the lower plate 50 are completely made. There is a slight gap between the side plate 30 and the upper and lower plates 40, 50 because it is not unfolded, but in the case of this embodiment, even a gap as described above can be reliably blocked, so that even an intrusion that can occur can be blocked. Will be.

Of course, in the case of the above-described embodiment, even if a slight gap occurs because the melody is generated by the melody means 90, even if a slight expansion of the melody can be alerted to the culprit, there is no problem, even in this case It can be shut off to maximize the anti-theft effect.

In the above, it has been described that the hinge means of the present invention is composed of a common hinge, this is merely for the purpose of illustration, the present invention is not limited to this, of course, can be changed in various forms.

For example, as illustrated in FIG. 11, hinge pins 411 and 421 which can be concentric with each other at the connection ends of two units 410 and 420 of the upper plate 400 are integrally formed with a hinge pin ( 430, and in this case, the torsion springs 80 may be coupled to the hinge pins 430 so that both ends thereof are fixed to the two units 410 and 420.

In this case, a separate hinge can be eliminated, of course, greatly contributes to the assembly of the receiving box (1).

In addition, although not separately illustrated, the cover for opening and closing the product take-out slot of the rear plate may also be provided with a guide channel around the article take-out slot instead of the rotation opening and closing by the hinge to open and close the cover by a slide method.

As described above, by receiving the delivery items of the front door according to the present invention, it is possible to input various delivery items such as milk or newspaper, and to completely block the entrance door of the front door, and also to issue a city alarm when an intruder enters. Therefore, it is possible to reliably prevent theft accidents using the product introduction port.

In addition, in normal times, it is folded to a minimum volume and adheres to the front door, but when the product is input from the outside, it is expanded by the volume, so that the received item is safely stored inside, thereby improving the aesthetics of the interior and entering and exiting through the front door. In addition to minimizing the obstacles, it is possible to effectively prevent contamination of the delivered goods.

Therefore, the present invention has a very excellent effect that greatly contributes to the improvement of the aesthetics of the room as well as the safety and reliability of the entrance door article entrance.

Claims (5)

By receiving the delivery items for receiving the various delivery items installed in the entrance door of the apartment, etc., A front plate fixed to an inner surface of the front door to wrap the article inlet and having an article inlet slot in communication with the article inlet; A rear plate having an article takeout slot facing the front plate and having a cover for opening and closing the article takeout slot and a locker for selectively locking or unlocking the cover; Two side plates each consisting of two unit pieces foldably assembled by hinge means, the free ends of each unit being foldably connected to respective opposite sides of the front plate and the rear plate so as to face each other by hinge means; An upper plate composed of two unit pieces foldably assembled by hinge means, the free end of each unit being foldably connected to the corresponding upper and lower sides of the front plate and the rear plate so as to face each other by a hinge means; Lower plate; Elastic means for elastically biasing the unit pieces of the side plate, the upper plate and the lower plate to be folded together; And Installed on any one of the elements, the alarm means for sounding a predetermined alarm sound when a shock of a predetermined size or more; receiving the delivery goods of the front door. According to claim 1, wherein the upper plate and the lower plate, receiving the delivery goods of the front door, characterized in that the unit is formed in a substantially trapezoidal shape, each of the long sides are connected by a hinge means. According to claim 1 or claim 2, The elastic means, receiving the delivery goods of the front door, characterized in that composed of the torsion spring is assembled concentrically to the hinge means, both ends are fixed to different units respectively. According to claim 1, When the delivery goods received from the outside of the front door to receive the delivery goods characterized in that it further comprises a melody means for generating a predetermined beep to inform the delivery. According to claim 1, At least the delivery of the front door to the front door characterized in that the permanent magnet is further provided on the outer surface of the unit body of each side plate.