CN109823686A - A kind of antitheft packing case - Google Patents

Abstract

The present invention relates to a kind of antitheft packing cases, including cabinet, case lid, connector, fixing piece and safety pin, one end of the case lid and the one side wall of cabinet are hinged, the connector is arranged on the case lid and is located at the case lid and cabinet hinged place opposite side, the fixing piece setting is corresponded on the cabinet at the connector position, described connector one end be plugged in the fixing piece and with the detachable clamping of the connector, described connector one end outer surface offers the first card hole, the first card hole location is corresponded in the external surface of fixing member is provided with first through hole, described safety pin one end passes through the first through hole and is disposably clamped with first card hole, the present invention solves the problems, such as the joint sealing of packing case and unpacking step trouble and how to prompt whether unpacking people oneself is first people to open the box.

Description

A kind of antitheft packing case

Technical field

The present invention relates to stream packing case field more particularly to a kind of antitheft packing cases.

Background technique

Currently, with the improvement of people's life quality, the people of shopping on the web are more and more, then logistics transportation just at For the essential channel for collecting article of people, and packing case is essential articles in logistics transportation, certainly in object It will appear many problems in stream transport, such as, a side needs to carry out joint sealing after article is put into packing case, under normal conditions People can select that a large amount of adhesive tape will be wound outside packing case, not only waste time in this way, but also also result in consignee and tearing open Pollution that is very inconvenient while also will cause ambient enviroment when case, in addition, exist in logistics environment it is many it is uncontrollable because Element can easily cut the adhesive tape being wrapped on packing case after non-consignee has accidentally dismantled the packing case of consignee Adhesive tape is glued again after falling, consignee can't be made to know that someone was having already turned on packing case before, therefore how preferably Whether article in protective packaging case, the people oneself that how to prompt to unpack are the people of first opening chest and how to make joint sealing More convenient with unpacking step, improving working efficiency is that we have to solve the problems, such as.

Summary of the invention

Technical problem to be solved by the invention is to provide a kind of antitheft packing cases, solve the joint sealing of packing case and unpack The step of trouble and how to prompt to unpack people oneself the problem of whether being first people to open the box the problem of.

The technical scheme to solve the above technical problems is that a kind of antitheft packing case, including cabinet, case lid, company Fitting, fixing piece and safety pin, one end of the case lid and the one side wall of cabinet are hinged, and the connector is arranged in the case lid Above and it is located at the case lid and cabinet hinged place opposite side, the fixing piece setting corresponds to the connector on the cabinet At position, described connector one end be plugged in the fixing piece and with the detachable clamping of the connector, the connector One end outer surface offers the first card hole, and the first card hole location is corresponded in the external surface of fixing member, and to be provided with first logical Hole, described safety pin one end pass through the first through hole and are disposably clamped with first card hole.

Further, the connector includes plate and fixed plate, and described fixed plate one end is fixedly connected with the case lid, institute State plate one end and connect with the fixed plate other end by the connecting plate, the connection board ends respectively with the plate one End is fixedly connected or is integrally formed with described fixed plate one end, and first card hole is arranged on the outer surface of the plate；

The fixing piece is fixedly connected with the cabinet, and opening is provided on the fixing piece towards the plate direction First card slot, described plate one end be plugged in first card slot and with the detachable clamping of the first card slot, described the One through-hole is arranged on the outer surface of the side wall of first card slot far from the cabinet.

Further, described plate one end is provided with resilient clamp member and tongue, the resilient clamp member setting there are two and Be separately positioned on the tongue two sides, two described resilient clamp member one end and described tongue one end with described plate one end one Body formed, first card slot outer surface opens up the second card hole, two bullets at corresponding two resilient clamp member positions Property the shackle member and detachable clamping of the second card hole.

Further, the fixed plate offers the first through slot, and top plate one end of the case lid is plugged on first through slot Internal and fixed, the bottom surface outer surface of first through slot is fixedly connected or is integrally formed with the one end of the connection board, described solid Fixed board is vertically arranged with the plate；

The second through slot is offered on the fixing piece, the open end grafting of the side wall of the cabinet is simultaneously fixed on described second In through slot, the bottom surface outer surface of second through slot is concordant with the open end of first card slot, the connecting plate one side and institute The bottom surface outer surface for stating the second through slot offsets, and second through slot is between first card slot and first through slot.

Further, protrusion, the case are fixedly installed on the two sidewalls inner surface of first through slot and the second through slot Lid is provided with depression with the position for corresponding to the protrusion on the surfaces externally and internally of the cabinet, and the protrusion is embedded under described In concave portion.

Further, the safety pin includes handpiece and shackle member, and described shackle member one end and described handpiece one end are logical Indentation line connection is crossed, the other end of the shackle member passes through the first through hole and is disposably clamped with first card hole.

Further, the handpiece is vertically arranged with the shackle member.

Further, the second through-hole is provided on the handpiece outer surface.

Beneficial effect brought by above-mentioned technical proposal includes at least: joint sealing can be completed by not needing extra adhesive tape, So that the step of joint sealing, becomes simply to also greatly improve working efficiency, it is effective to remind whether the people oneself that unpacks is first A people for opening chest, ensure that the safety of articles in packing case.

Detailed description of the invention

Fig. 1 is a kind of antitheft packing case overall structure diagram of the present invention；

Fig. 2 is the overall structure diagram of connector of the present invention, fixing piece and safety pin；

Fig. 3 is the diagrammatic cross-section of the side of the connector and fixing piece under the antitheft packing case use state of the present invention.

In attached drawing, parts list represented by the reference numerals are as follows:

1, cabinet, 2, case lid, 3, connector, 4, fixing piece, 5, safety pin, the 6, first card hole, 7, first through hole, 8, insert Plate, 9, fixed plate, 10, connecting plate, the 11, first card slot, 12, resilient clamp member, 13, tongue, the 14, second card hole, 15, first is logical Slot, the 16, second through slot, 17, protrusion, 18, depression, 19, handpiece, 20, shackle member, the 21, second through-hole.

Specific embodiment

The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the invention.

In the description of the present invention, it is to be understood that, term " on ", "lower", "center", "inner", "outside", "top", The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this hair Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation Construction and operation, therefore be not considered as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

As shown in Figure 1, the present invention provides a kind of antitheft packing case, including cabinet 1, case lid 2, connector 3,4 and of fixing piece Safety pin 5, one end of the case lid 2 and the one side wall of cabinet 1 are hinged, and the connector 3 is arranged on the case lid 2 and is located at The case lid 2 and the 1 hinged place opposite side of cabinet, the setting of fixing piece 4 correspond to the connector 3 on the cabinet 1 Set place, described 3 one end of connector be plugged in the fixing piece 4 and with the detachable clamping of the connector 3, the connector 3 one end outer surface offer the first card hole 6, correspond on 4 outer surface of fixing piece and are provided at 6 position of the first card hole One through-hole 7, described 5 one end of safety pin pass through the first through hole 7 and the disposably clamping of the first card hole 6, and the application is applicable in In clamshell packaging case, so-called clamshell packaging case is exactly: under normal conditions, cabinet 1 includes bottom surface and side wall, the side wall One end is fixedly connected with bottom surface, and the other end of the side wall constitutes the opening of cabinet 1, and the fixing piece 4 is just arranged in institute On the side wall for stating cabinet 1, fixed mode can be grafting and fixation, and the mode that can be hot melt is fixed, and be also possible to rivet Etc. fixed forms, the connector 3 be fixed on the case lid 2, the case lid 2 can only include top plate, or include push up Plate and side plate, when the case lid 2 only includes top plate, one end of the connector 3 is fixed on the top plate of the case lid 2, The modes such as fixed form includes grafting and fixation, and hot melt is fixed, and ultrasonic wave is fixed, since the connector 3 is all provided with fixing piece 4 It sets preferably to play in the hinged place opposite side of cabinet 1 and case lid 2 and is closed the opening of cabinet 1 and case lid 2, as long as will even Fitting 3 and fixing piece 4 release clamping and the connection relationship of grafting and can open the box, 3 one end outer surface of connector The first jack is offered, is corresponded on 4 outer surface of fixing piece and is provided with first through hole 7 at first jack position, it is described 5 one end of safety pin passes through the first through hole 7 and the disposably clamping of the first card hole 6, that is, when one end of safety pin 5 is worn When crossing the first through hole 7 with the 6 disposable clamping of the first card hole, it is equivalent to and further connects connector 3 and fixing piece 4 Get up, the other end of the safety pin 5 protrudes from the outer surface of the fixing piece 4, when packing case needs to be packaged, first by object Product are put into packing case, then fasten the open end of case lid 2 and cabinet 1, one end of connector 3 is plugged in fixing piece 4 Portion and with the detachable clamping of the fixing piece 4, accordingly even when being that article in packing case more may will cause packaging The slightly deformation of case, connector 3 and fixing piece 4 have the function of certain tightening after being clamped, so that the article in packing case will not It is easily scattered, one end of safety pin 5 is finally passed through into the first through hole 7 and the disposable grafting of first card hole 6, at this time Joint sealing finishes, and joint sealing can be completed by not needing extra adhesive tape, so that the step of joint sealing becomes simply to also greatly mention High working efficiency needs to open the box when unpacking people is connected to packing case, at this point, destroyed firstly the need of by safety pin 5, One end of safety pin 5 and the disposable clamping relationship of first card hole 6 are namely released, at this moment just can further be released Clamping relationship between connector 3 and fixing piece 4, finally opens chest, and due to unpacking, people can not judge that packing case was transporting Transportation environment in journey, if also not knowing that packing case is beaten either with or without in the process of transport without the presence of safety pin 5 It opened, and after being provided with the structure of safety pin 5, found that safety pin 5 had been destroyed before unpacking people opens the box, that is just Illustrate that packing case is opened by people before, therefore the setting of safety pin 5 can effectively remind the unpacking people oneself to be No is the people of first opening chest, moreover, it is desirable to explanation, 1 structure of cabinet is also possible to: the cabinet 1 can be with It further include the top plate of a cabinet 1 including bottom plate and side wall, the top plate shape of cabinet 1 is mutually fitted with the 1 opening shape of cabinet Match, the top plate side of cabinet 1 and side wall one end of cabinet 1 are hinged by indentation line, and the hinged place of the indentation line is located at described Cabinet 1 and 2 hinged place opposite of case lid first turn down the top plate of cabinet 1 to after vertical with 1 side plate of cabinet, then will when joint sealing Case lid 2 is fastened on the opening of cabinet 1, and the connector 3 is just inserted naturally after the top cover and case lid 2 of cabinet 1 fasten It connects in 4 inside of fixing piece and is clamped with the fixing piece 4, so that by the opening locking of packing case, the top cover of cabinet 1 is In order to reduce the gap between cabinet 1 and case lid 2, further prevent other people by seeing packing case between case lid 2 and cabinet 1 Interior article, thus in guard box article Environmental security, the quantity that the connector 3 is arranged with fixing piece 4 can according to Concrete condition is set in practical application, further explanation, and the connector 3 is removable in 1 outside of cabinet with the fixing piece 4 Unload formula connection.

Antitheft packing case of the invention, as shown in Fig. 2, it may also is that institute on the basis of the technical solution described in front Stating connector 3 includes plate 8 and fixed plate 9, and described 9 one end of fixed plate is fixedly connected with the case lid 2, described 8 one end of plate Connect with 9 other end of fixed plate by the connecting plate 10,10 both ends of connecting plate respectively with described 8 one end of plate and Described 9 one end of fixed plate is fixedly connected or is integrally formed, and first card hole 6 is arranged on the outer surface of the plate 8, will consolidate Fixed board 9 is fixedly connected with the top plate of case lid 2, at this time by described 8 one end of plate directly with the detachable clamping of the fixing piece 4, It further realizes and facilitates joint sealing, unpacking operation, first through hole 7 is corresponding with 6 position of the first card hole at this time, at this time by safety pin 5 one end pass through the first through hole 7 and the disposably clamping of the first card hole 6, when the fixed plate 9 and the case lid 2 are fixed When connection, after case lid 2 and the closure of cabinet 1, one end of the plate 8 is plugged in first card slot 11, at this time the cabinet 1 Open end correspond to the end face at the position of the connecting plate 10 and the contacted inner surfaces of the connecting plate 10, need to illustrate Be: described 8 one end of plate and 9 one end of the fixed plate can also be hingedly, it is hinged after the plate and the fixed plate can be with It is open and flat so that it is convenient to transport storage, prevent the problem of being easily damaged in transport and storage；

The fixing piece 4 is fixedly connected with the cabinet 1, and opening is provided on the fixing piece 4 towards 8 side of plate To the first card slot 11, described 8 one end of plate is plugged in first card slot 11 and detachable with first card slot 11 Clamping, the first through hole 7 are arranged on the outer surface of side wall of first card slot 11 far from the cabinet 1, the fixation First card slot 11 of the opening towards 8 direction of plate is provided on part 4, that is to say, that the opening direction of first card slot 11 Opening with the cabinet 1 is towards unanimously, it should be noted that the fixing piece 4 is fixedly connected with the side wall of the cabinet 1 can The outer surface of 1 side wall of close cabinet to be first card slot 11 is fixedly connected with the side wall of the cabinet 1, is further realized Facilitate joint sealing, unpack and prompt whether unpacking people oneself is first people for opening chest, it should be understood that plate 8 one End be plugged in first card slot 11 and with the detachable clamping of the card slot, can make in this way article in packing case compared with It in the case where more is also not easy that article is made to be scattered, clamping structure has the function of gathering to collapse case lid 2 and cabinet 1 naturally, except this it Outside, the application can be applied on lid-tray type packing case, and so-called lid-tray type packing case is that case lid 2 is fastened on cabinet 1 Opening, case lid 2 separates with cabinet 1, the anti-theft latch fastener in the application is used in its quantity on packing case and is not limited, according to The practical application sets itself of those skilled in the art.

Antitheft packing case of the invention, as shown in Fig. 2, it may also is that institute on the basis of the technical solution described in front It states 8 one end of plate and is provided with resilient clamp member 12 and tongue 13, there are two the settings of resilient clamp member 12 and is separately positioned on 13 two sides of tongue, two described 12 one end of resilient clamp member and 13 one end of the tongue are integrated with described 8 one end of plate Molding, 11 outer surface of the first card slot open up the second card hole 14, two institutes at corresponding two 12 positions of resilient clamp member State resilient clamp member 12 and the detachable clamping of second card hole 14, why flexible two resilient clamp members 12 are, be by Being formed by structure in two shackle members 20 and the tongue 13 between it is " M " type or " E " type, two 12 one end of resilient clamp member It is integrally formed with plate 8 with one end of tongue 13, therefore has centainly between two resilient clamp members 12 and tongue 13 Space moves resilient clamp member 12 to close to tongue 13 with the direction far from tongue 13 in the case where stress, because This has elasticity, is provided with clamping portion, the clamping in separate 13 side of tongue of two resilient clamp members 12 Portion protrudes from the outer surface of 8 side of plate, when the plate 8 is plugged in 11 inside of the first card slot, due to first The length that card slot 11 is open is equal to the width of the plate 8, therefore when two resilient clamp members 12 are touching the first card slot 11 Opening when deformation occurs, to move close to 13 direction of tongue, enter in first card slot 11, block due to first 11 outer surface of slot has opened up the second card hole 14 at corresponding two 12 positions of resilient clamp member, when two of two resilient clamp members 12 When clamping portion is reached at the second card hole 14, because two resilient clamp members 12 are respectively mutually far from tongue 13 without external force Direction movement, two clamping portions are stretched out the second card hole 14 and are clamped with it, when needing to open connector 3 and fixing piece 4, only It needs the clamping portion for pressing two sides together to move it to 13 direction of tongue, inserts it along final release in 11 inside of the first card slot Plate 8 and the first card slot 11 connect relationship, further bring the operation facilitated chest joint sealing and unpacking.

Antitheft packing case of the invention may also is that on the basis of the technical solution described in front as shown in Fig. 2 to 3 Fixed plate 9 offers the first through slot 15, and top plate one end of the case lid 2 is plugged on 15 inside of the first through slot and fixed, institute The bottom surface outer surface for stating the first through slot 15 is fixedly connected or is integrally formed with described 10 one end of connecting plate, the fixed plate 9 and institute Plate 8 is stated to be vertically arranged；

The second through slot 16 is offered on the fixing piece 4, the open end grafting of the side wall of the cabinet 1 is simultaneously fixed on described In second through slot 16, the bottom surface outer surface of second through slot 16 is concordant with the open end of first card slot 11, the connection 10 one side of plate and the bottom surface outer surface of second through slot 16 offset, and second through slot 16 is located at first card slot 11 and institute It states between the first through slot 15, the top plate of case lid 2 is plugged in first through slot 15 and is fixed, by 1 side plate of cabinet It is plugged in second through slot 16 and is fixed at the position of corresponding plate 8, first card slot 11 leads to described second Slot 16 is arranged in parallel and opening direction is on the contrary, first card hole 6 is located at outside cabinet 1 after mounting fixing parts 4 on cabinet 1, more Good being fixed on cabinet 1 by fixing piece 4 and preferably connector 3 is fixed on case lid 2, it should be noted that at this time Case lid 2 only includes a top plate, and top plate one end of case lid 2 is plugged in the first through slot 15 and fixes, but the cabinet 1 is not It only further include the top plate of cabinet 1 including bottom plate, side plate, other people see the article in packing case easily in order to prevent, thus into The safety of article in one step guard box.

Antitheft packing case of the invention, as shown in figure 3, it may also is that institute on the basis of the technical solution described in front It states and is fixedly installed protrusion 17 on the two sidewalls inner surface of the first through slot 15 and the second through slot 16, the case lid 2 and the case Raised 17 position is corresponded on the surfaces externally and internally of body 1 and is provided with depression 18, and described raised 17 are embedded described sagging In portion 18, the described raised 17 more fastenings that the first through slot 15 can be made to connect with case lid 2, the second through slot 16 connects with cabinet 1 The top plate of the more fastening connect, case lid 2 is clamped and is fixed by the protrusion 17 of 15 two sidewalls medial surface of the first through slot, the side of cabinet 1 Wall is clamped and fixed by the protrusion 17 of 16 two sidewalls medial surface of the second through slot, it should be understood that due to cabinet 1 and case lid 2 Surfaces externally and internally is provided with depression 18, so the still outer surface of 1 side wall of cabinet either on the top plate outer surface of case lid 2 On without part outstanding, surface is still very smooth, and not only plays the more firm effect of connection, also acts It is not take up the effect in space in case.

Antitheft packing case of the invention may also is that on the basis of the technical solution described in front as shown in Fig. 1 to 2 The safety pin 5 includes handpiece 19 and shackle member 20, and described 20 one end of shackle member and described 19 one end of handpiece pass through impression Line connects, and the other end of the shackle member 20 passes through the first through hole 7 and the disposably clamping of the first card hole 6, when unpacking When people needs to open chest and takes out article, need to destroy safety pin 5 first namely by hand-held part and shackle portion from rear, simultaneously To two clamping portions for pressing two resilient clamp members 12 close to 13 direction of tongue, finally chest is opened and takes out article, if Unpack people find that safety pin 5 is destroyed, and just illustrates that chest is previously opened before when unpacking, this structure preferably realize by Chest is sealed, and plays whether the unpacking people oneself of suitcase is first people for opening chest, it should be noted that described first It is stupefied to be fixedly installed at least one card for symmetrical two sides in the internal side wall of card hole 6, and the shackle member 20 is stupefied disposable with the card Clamping.

Antitheft packing case of the invention, as shown in Fig. 2, it may also is that institute on the basis of the technical solution described in front It states handpiece 19 to be vertically arranged with the shackle member 20, effectively avoids handpiece 19 due to damaging after unexpected stress, The handpiece 19 is arranged in parallel with fixing piece 4 exactly, while also avoiding handpiece 19 outstanding and scratching hand.

Antitheft packing case of the invention, as shown in Fig. 2, it may also is that institute on the basis of the technical solution described in front It states and is provided with the second through-hole 21 on 19 outer surface of handpiece, it, can the second through-hole of direct pull-up when unpacking people destroys safety pin 5 Safety pin 5 is destroyed at 21, the people's destruction safety pin 5 that can more easily make to unpack at the second through-hole 21 is to take out object in case Product.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of antitheft packing case, it is characterised in that: including cabinet (1), case lid (2), connector (3), fixing piece (4) and safety It sells (5), one end of the case lid (2) and the one side wall of cabinet (1) are hinged, and the connector (3) is arranged on the case lid (2) And it is located at the case lid (2) and the cabinet (1) hinged place opposite side, the fixing piece (4) is arranged on the cabinet (1) corresponding At connector (3) position, described connector (3) one end is plugged in the fixing piece (4) and can with the connector (3) Detachable clamping, connector (3) one end outer surface offer the first card hole (6), corresponding on fixing piece (4) outer surface Be provided with first through hole (7) at first card hole (6) position, described safety pin (5) one end pass through the first through hole (7) with First card hole (6) is disposably clamped.

2. antitheft packing case according to claim 1, it is characterised in that: the connector (3) includes plate (8) and fixes Plate (9), described fixed plate (9) one end are fixedly connected with the case lid (2), and described plate (8) one end and the fixed plate (9) are another One end by the connecting plate (10) connect, connecting plate (10) both ends respectively with the plate (8) one end and the fixation Plate (9) one end is fixedly connected or is integrally formed, and first card hole (6) is arranged on the outer surface of the plate (8)；

The fixing piece (4) is fixedly connected with the cabinet (1), and opening is provided on the fixing piece (4) towards the plate (8) first card slot (11) in direction, described plate (8) one end be plugged in first card slot (11) and with first card slot (11) detachable clamping, first through hole (7) setting is in side wall of first card slot (11) far from the cabinet (1) On outer surface.

3. antitheft packing case according to claim 2, it is characterised in that: described plate (8) one end is provided with flexible clamping Part (12) and tongue (13), there are two resilient clamp member (12) settings and is separately positioned on the tongue (13) two sides, and two A resilient clamp member (12) one end and the tongue (13) one end are integrally formed with the plate (8) one end, and described the One card slot (11) outer surface opens up the second card hole (14) at corresponding two resilient clamp member (12) positions, two elasticity Shackle member (12) and the detachable clamping of second card hole (14).

4. antitheft packing case according to claim 3, it is characterised in that: the fixed plate (9) offers the first through slot (15), top plate one end of the case lid (2) is plugged on the first through slot (15) inside and fixes, first through slot (15) Bottom surface outer surface is fixedly connected or is integrally formed with the connecting plate (10) one end, and the fixed plate (9) and the plate (8) are hung down Straight setting；

It is offered the second through slot (16) on the fixing piece (4), the open end grafting of the side wall of the cabinet (1) is simultaneously fixed on institute It states in the second through slot (16), the bottom surface outer surface of second through slot (16) is concordant with the open end of first card slot (11), Bottom surface outer surface of the connecting plate (10) on one side with second through slot (16) offsets, and second through slot (16) is located at described Between first card slot (11) and first through slot (15).

5. antitheft packing case according to claim 4, it is characterised in that: first through slot (15) and the second through slot (16) Two sidewalls inner surface on be fixedly installed raised (17), the case lid (2) is corresponding on the surfaces externally and internally of the cabinet (1) The position of the protrusion (17) is provided with depression (18), and the protrusion (17) is embedded in the depression (18).

6. antitheft packing case according to claim 1, it is characterised in that: the safety pin (5) include handpiece (19) with Shackle member (20), described shackle member (20) one end are connect with the handpiece (19) one end by indentation line, the shackle member (20) the other end passes through the first through hole (7) and first card hole (6) is disposably clamped.

7. antitheft packing case according to claim 6, it is characterised in that: the handpiece (19) and the shackle member (20) It is vertically arranged.

8. antitheft packing case according to claim 7, it is characterised in that: be provided on handpiece (19) outer surface Two through-holes (21).