CN211423087U - Box connecting piece and box - Google Patents

Abstract

The application provides a box connecting piece and box, box connecting piece set up the edge at the box panel for be connected with the box connecting piece of adjacent box panel, the box connecting piece includes: the plug-in part comprises a plug-in part matching end face and a plug-in part positioning face, wherein the plug-in part positioning face is connected with a first end of the plug-in part matching end face, and the cross section of the plug-in part matching end face is arc-shaped; the first receiving part and the second receiving part respectively have a contour which is at least partially matched with the shapes of the insertion part matching end surface and the insertion part positioning surface; the first receiving portion and the second receiving portion are connected with the inserting portion positioning surface and the inserting portion matching end surface respectively.

Description

Box connecting piece and box

Technical Field

The application relates to a box body connecting piece and a box body connected by the box body connecting piece, in particular to a box body connecting piece for connecting an air conditioner box body.

Background

The frameless box body of the air conditioning unit provided with the heat exchanger is formed by splicing box body panels with heat insulation performance, and the box body panels are connected and fastened with adjacent box body panels through box body connecting pieces arranged on the edges of the box body panels. In the prior art, two or more types of profiles are prepared for the box connector which needs two complementary connectors to be installed in a matched mode, the profiles are not universal, the challenges exist in material management, panel manufacturing and box assembling, corresponding connectors need to be selected in the assembling process, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The application provides a box connecting piece, box connecting piece sets up the edge at the box panel for be connected with the box connecting piece of adjacent box panel, box connecting piece includes:

the insertion part comprises an insertion part matching end face and an insertion part positioning face, the insertion part positioning face is connected with a first end of the insertion part matching end face, and the cross section of the insertion part matching end face is in an arc shape;

a first receiving portion having a contour that at least partially mates with the shape of the insert mating end surface and the insert locating surface;

a second receiving portion having a contour that at least partially mates with the shape of the insert mating end surface and the insert locating surface;

the first receiving portion and the second receiving portion are connected with the inserting portion positioning surface and the inserting portion matching end surface respectively.

Further, the first receiving part comprises a first receiving part matching surface and a first receiving part positioning surface, the first receiving part matching surface and the first receiving part positioning surface are matched with the shapes of the insertion part matching end surface and the insertion part positioning surface respectively, one end of the first receiving part matching surface is connected with the insertion part positioning surface, the other end of the first receiving part matching surface is connected with the first receiving part positioning surface of the first receiving part, and the first receiving part positioning surface is perpendicular to the insertion part positioning surface;

the second receiving part comprises a second receiving part matching surface and a second receiving part positioning surface, the second receiving part matching surface and the second receiving part positioning surface are respectively matched with the shapes of the insertion part matching end surface and the insertion part positioning surface, the second receiving part positioning surface is connected with the insertion part matching end surface, and the second receiving part positioning surface is perpendicular to the insertion part positioning surface.

Further, the circular arc length of the cross section of the second receiving portion engagement surface is smaller than the circular arc length of the cross section of the insertion portion engagement end surface, so that a part of the insertion portion enters the second receiving portion when the insertion portion is engaged with the second receiving portion.

Further, the insertion portion further comprises an insertion portion connecting surface, one end of the insertion portion connecting surface is connected with the second end of the insertion portion matching end surface, the other end of the insertion portion connecting surface is connected with the second receiving portion, and the length of the insertion portion connecting surface is smaller than that of the insertion portion positioning surface.

Furthermore, the cross section of the matching end surface of the insertion part is semicircular, and the matching end surface of the insertion part is tangent to the positioning surface of the insertion part.

Furthermore, the bottom of the box body connecting piece is provided with a connecting step which protrudes outwards and is formed, the connecting step comprises a side connecting surface, an upper connecting surface and a butt surface which are sequentially connected, when a first box body connecting piece in the two adjacent box body connecting pieces is connected with a second box body connecting piece which is the same as the first box body connecting piece, the side connecting surface of the first box body connecting piece abuts against the upper connecting surface of the second box body connecting piece, and the upper connecting surface of the first box body connecting piece abuts against the butt surface of the second box body connecting piece.

Further, the distance from the first receiving part positioning surface to the second receiving part positioning surface is equal to the distance from the upper connecting surface of the connecting step to the bottom of the box connecting piece.

Further, the end part of the connecting strip is provided with a connecting part which is formed by respectively extending outwards in an inclined way from two sides of the end part of the connecting strip;

the connecting strip receiving part comprises a first side part second side part and a bottom part, the first side part, the bottom part and the second side part are sequentially connected to form a receiving groove for receiving the connecting part, the first side part is of a bendable structure, the first side part is provided with a first position far away from the second side part and a second position close to the second side part, when the first side part is located at the first position, the connecting strip can be placed into the connecting strip receiving part, when the connecting strip is placed into the connecting strip receiving part, the first side part can be bent towards the second side part to reach the second position, and therefore the connecting strip cannot fall off from the connecting strip receiving part.

Further, the inner side of the first side portion is provided with a positioning rib protruding inwards, one side of the connecting strip is provided with a positioning groove recessed inwards, and after the connecting strip is placed into the connecting strip receiving portion, the positioning rib can enter the positioning groove.

The application also provides a box, the box is formed by six rectangle box panels concatenation, every the edge of rectangle box panel is equipped with four respectively as above box connecting piece, thereby box connecting piece is used for connecting adjacent box panel and forms the box.

The application provides a box connecting piece simple structure, the material saving. Every box connecting piece shape of the air conditioner box of this application is the same, in the installation, need not consider to pair, and the installation effectiveness is high. The box connecting piece is provided with an inserting part matching end face with an arc-shaped face, so that certain angle error can be allowed to exist in the primary operation of aligning the box panel, the installation process is easier, and the sealing performance of the box body is better. The box body connecting piece comprises a base made of metal material and a connecting strip made of PVC material, wherein the base is provided with a bendable structure, so that the connecting strip is installed in the inserting base.

Drawings

FIG. 1A is a perspective view of an air conditioning cabinet according to the present application;

FIG. 1B is an exploded view of the air conditioning cabinet of FIG. 1A;

FIG. 2 is a perspective view of a box panel of FIG. 1B;

FIG. 3A is a perspective view of the tank connector of FIG. 2;

FIG. 3B is an exploded view of the tank connector of FIG. 3A;

FIG. 3C is a side view of the tank connector of FIG. 3A;

FIG. 4A is an enlarged view of portion A of FIG. 3C;

FIG. 4B is a schematic view of the first side of FIG. 4A in a first position;

FIG. 4C is a schematic view of the first side of FIG. 4A in a second position;

FIG. 5 is an enlarged view of portion B of FIG. 3C;

FIG. 6A is a partial cross-sectional view of the air conditioning cabinet of FIG. 1A;

fig. 6B is an enlarged view of a portion C in fig. 6A.

Detailed Description

Various embodiments of the present application will now be described with reference to the accompanying drawings, which form a part hereof. It should be understood that although directional terms such as "front," "rear," "upper," "lower," "left," "right," and the like may be used herein to describe various example structural portions and elements of the application, these terms are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the embodiments disclosed herein can be arranged in a variety of orientations, these directional terms are used for purposes of illustration only and are not to be construed as limiting.

Fig. 1A is a perspective view of an air conditioning cabinet in the present application, and fig. 1B is an exploded view of the air conditioning cabinet in fig. 1A, and as shown in fig. 1A, the air conditioning cabinet 100 is a cube formed by splicing six cabinet panels 101. Each box body panel is rectangular, four edges of each rectangular box body panel are respectively provided with four box body connecting pieces 102, and each box body panel 101 is connected with the adjacent box body panel 101 through the box body connecting pieces 102.

Fig. 2 is an exploded view of one of the case panels 101 of fig. 1B. As shown in fig. 2, the tank panel 101 includes an inner plate 201, an outer plate 202, and four tank connectors 102. The tank connector 102 connects the inner plate 201 and the outer plate 202 with a distance between the inner plate 201 and the outer plate 202. A foam material having a heat insulating property, for example, a polyurethane foam material is filled between the inner panel 201 and the outer panel 202, so that the air conditioning compartment 100 has a heat insulating property.

Fig. 3A is a perspective view of one of the tank connectors of fig. 2, fig. 3B is an exploded view of the tank connector of fig. 3A, and fig. 3C is a side view of the tank connector of fig. 3A. Since the four tank connectors 102 have the same or similar structure, the structure of the tank connector will be described below by taking one tank connector as an example. As shown in fig. 3A-3C, the box connector 102 includes a base portion 301 and a sealing portion 308, wherein the sealing portion 308 includes a connecting strip 302 and a sealing strip 303. The connecting strip 302 is connected with the base part 301, the sealing strip 303 is attached to the surface of the connecting strip 302, the base part 301 is used for being matched, positioned and connected with the base part of the adjacent box connecting piece, and the sealing strip 303 and the sealing strip used for being connected with the adjacent box connecting piece form a sealing.

As shown in fig. 3C, the base 301 includes a first portion 311 and a second portion 312, wherein the extending direction of the first portion 311 and the extending direction of the second portion 312 are perpendicular. The upper portion of the first section 311 has a connecting strap receiving portion 305 for receiving the connecting strap 302 and the lower portion of the first section 311 has an outer panel receiving portion 306 for receiving the outer panel 202 of the carton panel. The outer panel receiving portion 306 is a groove whose opening is provided on the side wall of the inner side of the first portion 311, and the extending direction of the groove coincides with the extending direction of the second portion 312, so that the outer panel 202 inserted into the outer panel receiving portion 306 coincides with the extending direction of the second portion 312. The second portion 312 extends outwardly from the bottom of the first portion 311 and the distal end of the second portion 312 forms a mating portion 330, the mating portion 330 being adapted to be connected to a mating portion of an adjacent box connector to thereby connect two adjacent box panels. Wherein the first portion 311 and the second portion 312 are respectively provided to be hollow and have a first hollow portion 321 and a second hollow portion 322, respectively, thereby saving material for manufacturing the base 301 of the case connector 102 and reducing the weight of the case connector 102. The base 301 is made of aluminum alloy or other metal material. The connecting strip 302 includes a tail portion 354, a body 353 and a head portion 352. The main body 353 has a substantially elongated plate shape and has a longitudinal direction and a width direction, wherein the longitudinal direction of the main body 353 coincides with the extending direction of the connecting bar 302, and both ends of the main body 353 in the width direction are connected to the tail portion 354 and the head portion 352, respectively. Wherein the tail 354 and head 352 each form an angle of approximately 135 deg. with the body 353. When the connecting strip 302 is installed in the base 301, the tail portion 354 of the connecting strip 302 is connected to the connecting strip receiving portion 305 of the base 301, and the tail portion 354 is aligned with the extending direction of the first portion 311 of the base 301, so that the main body 353 forms an included angle of about 135 ° with the first portion 311, and the head portion 352 is substantially perpendicular to the first portion 311. An inner plate attaching surface 361 is formed on the upper surface of the head 352, and the inner plate 201 of the case panel can be adhered to the inner plate attaching surface 361 of the head 352 by an adhesive, so that the inner plate 201 is parallel to the outer plate 202 with a space between the inner plate 201 and the outer plate 202 for filling a heat insulating material. The outer surface 356 of the body 353 is used to apply the sealing strip 303 and the sealing strip 303 is used to make a seal with the adjacent sealing strip of the box connector. The connecting strips 302 are used for support and insulation and are made of a heat insulating material having a certain hardness, such as PVC. The sealing strip 303 is made of a heat insulating material capable of deforming to some extent under pressure, such as rubber, plastic, cotton and asbestos. The lower end of the weather strip 303 is stuck to the outside of the connecting strip receiving portion 305 beyond the main body 353.

Fig. 4A is an enlarged view of portion a of fig. 3C, showing the relationship of the head portion 352 of the connecting strip 302 to the connecting strip receiving portion 305 of the base 301. As shown in fig. 4A, the head portion 352 includes a connection portion 412, and the connection portion 412 extends outward from both inner and outer sides of an end portion of the head portion 352, respectively. The thickness of the connecting portion 412 increases from top to bottom, so that the connecting portion 412 has a substantially trapezoidal shape in a cross section of the connecting bar 302. The outer side of the connecting strip 302 has a positioning groove 415 formed by being depressed inward, and the positioning groove 415 is located above the connecting portion 412.

The connecting strip receiving portion 305 includes a first side portion 451, a second side portion 452, and a bottom portion 453, and the first and second side portions 451 and 452 extend upward and inward from both sides of the bottom portion 453 to define a receiving groove 455. The width of the receiving groove 455 is gradually reduced from bottom to top to form a shape matching the connection part 412 of the connection bar 302, and when the connection part 412 of the connection bar 302 enters the receiving groove 455, the connection part 412 is restricted by the first and second side parts 451 and 452 and cannot be removed from the receiving groove 455. The first side portion 451 has a positioning rib 408, and the positioning rib 408 is formed to protrude inward from an inner side of an upper end of the first side portion 451. The positioning rib 408 has a shape matching the shape of the positioning groove 415, and the positioning rib 408 can be inserted into the positioning groove 415, further preventing the connecting portion 412 from falling off from the connecting strip receiving portion 305. The first side portion 451 is bendable, bendable along a joint between the first side portion 451 and the bottom portion 453, and has a first position and a second position. The recess 480 is provided outside the connection between the first side portion 451 and the bottom portion 453, so that the connection between the first side portion 451 and the bottom portion 453 is made thinner, and the first side portion 451 is easily bent with respect to the bottom portion 453.

FIG. 4B is a view of the first side 451 of the connecting strip receiving portion 305 of FIG. 4A in a first position; fig. 4C is a view of the first side portion 451 of the connecting strip receiving portion 305 of fig. 4A in a second position. As shown in fig. 4B, when the first side portion 451 is in the first position, the first side portion 451 is spaced apart from the second side portion 452, so that the opening of the receiving groove 455 has a first width close to the width of the lower end of the connecting portion 412, so that the connecting portion 412 can be fitted into the receiving groove 455 from the opening of the receiving groove 455. When it is desired to connect the connecting strip 302 to the base 301, as shown in FIG. 4C, an external force is applied to bend the upper portion of the first side portion 451 toward the second side portion 452 to a second position of the first side portion 451. In a second position of the first side portion 451, the opening of the receiving groove 455 has a second width smaller than the first width, the second width being such that the connecting portion 412 cannot fall off from the opening of the receiving groove 455. And in the second position of the first side portion, the positioning rib 408 enters the positioning groove 415, further preventing the connecting portion 412 from falling out of the receiving groove 455. In some embodiments, the connection bar 302 may be inserted into the receiving groove 455 from the side of the receiving groove 455 along the extending direction of the connection bar 302, but since the length of the connection bar 302 is long, bending easily occurs during the insertion process, affecting the insertion operation. The bendable first side portion 451 makes it easy to fit the joint strip 302 into the joint strip receiving portion 305, so that the joint strip 302 is mounted efficiently.

Fig. 5 is an enlarged view of a portion B in fig. 3C, showing the structure of the fitting portion 330 of the base 301. As shown in fig. 5, the fitting part 330 has an insertion part 501, a first receiving part 502, a second receiving part 503, and a connection step 509, wherein the second receiving part 503, the insertion part 501, the first receiving part 502, and the connection step 509 are connected in this order. The insertion portion 501 includes an insertion portion engagement end surface 512, an insertion portion positioning surface 514, and an insertion portion connection surface 515. The insert mating end surface 512 is circular in cross-section and has a first end 551 and a second end 552, an insert locating surface 514 connected to the first end 551, and an insert connecting surface 515 connected to the second end 552. The insertion portion positioning surface 514 is parallel to the insertion portion connection surface 515, and the length of the insertion portion positioning surface 514 is greater than the length of the insertion portion connection surface 515. The insert mating end surface 512 is semi-circular in cross-section, and the insert mating end surface 512 is tangent to the insert locating surface 514 and the insert connecting surface 515, respectively.

The first receptacle 502 comprises a first receptacle mating surface 521 and a first receptacle positioning surface 522, the first receptacle mating surface 521 mating with the shape of the insert mating end surface 512 and the first receptacle positioning surface 522 mating with the shape of the insert positioning surface 514 such that the first receptacle 502 can receive at least a portion of the insert 501 of another box connector. The first receiving portion 502 thus has a profile that at least partially mates with the shape of the insert mating end surface 512 and the insert locating surface 514. The first receptacle mating surface 521 has one end connected to the insert locating surface 514 and another end connected to a first receptacle locating surface 522 of the first receptacle 502, the first receptacle locating surface 522 being perpendicular to the insert locating surface 514. The first receiving portion engagement surface 521 has a semicircular arc in cross section and can receive the insertion portion engagement end surface 512.

The second receptacle 503 includes a second receptacle mating surface 531 and a second receptacle positioning surface 532, the second receptacle mating surface 531 mating with the shape of the insert mating end surface 512, the second receptacle positioning surface 532 mating with the shape of the insert positioning surface 514, the second receptacle positioning surface 532 connecting with the insert connecting surface 515. The second receiving portion 503 thus has a profile that at least partially matches the shape of the insert mating end surface 512 and the insert locating surface 514. The second receptacle positioning surface 532 is perpendicular to the insert positioning surface 514 such that the first receptacle positioning surface 522 and the second receptacle positioning surface 532 are parallel. The circular arc length of the cross section of the second receptacle mating surface 531 is smaller than the circular arc length of the cross section of the insert mating end surface 512 so that a portion of the insert 501 enters the second receptacle 503 when the insert 501 is mated with the second receptacle 503. The circular arc of the cross section of the second receiving portion fitting surface 531 is an 1/4 circle, the first end 571 of the second receiving portion fitting surface 531 is tangent to the second receiving portion positioning surface 532, and the tangent plane of the second end 572 of the second receiving portion fitting surface 531 is perpendicular to the second receiving portion positioning surface 532, so that in a cross section, the point of the second end 572 is the point on the circular arc on which the second receiving portion fitting surface 531 is located farthest from the insertion portion connecting surface 515, so that the second receiving portion 503 has a sufficiently large opening for facilitating the insertion of the insertion portion of another box connector into the second receiving portion 503.

In another embodiment of the present application, the insert coupling surface 515 may not be provided, such that the second receptacle positioning surface 532 directly couples with the second end 552 of the insert mating end surface 512.

The bottom of the second part 312 of the box connector is provided with a boss 504 which extends outwards and exceeds the first receiving part 502, the height of the boss 504 is lower than that of the first receiving part 502, so as to form a connecting step 509, the connecting step 509 comprises a side connecting surface 542, an upper connecting surface 541 and an abutting surface 561 which are connected in sequence, the upper connecting surface 541 is the upper surface of the boss 504, the side connecting surface 542 is the outer side surface of the boss 504, and the boss 504 and the connecting surface of the first receiving part 502 form the abutting surface 561. Wherein the upper coupling surface 541, the first receiving portion positioning surface 522 and the bottom plane 580 of the second portion 312 are parallel to each other, the side coupling surface 542, the abutment surface 561 and the inserting portion positioning surface 514 are parallel to each other, and the side coupling surface 542 is perpendicular to the bottom plane 580 of the second portion 312. The first receptacle positioning surface 522 is spaced from the second receptacle positioning surface 532 by a distance equal to the upper attachment surface 541 of the attachment step 509 to the bottom of the case connector to enable the case connector 102 to be matingly coupled to an adjacent case connector. The term substantially equals the tolerance allowed for a range of mounting tolerances, for example 0-1 cm.

FIG. 6A is a partial cross-sectional view of the tank of FIG. 1A showing the mating between two adjacent tank connectors. As shown in fig. 6A, the edge of the first case panel 101 is provided with a first case connector 102, the edge of the second case panel 101 'is provided with a second case connector 102', and the first case panel 101 and the second case panel 101 'are connected by the first case connector 102 and the second case connector 102'. The first sealing portion 308 and the second sealing portion 308 ' are abutted to form a seal, and the first mating portion 330 and the second mating portion 330 ' are fitted to each other, so that the first casing panel 101 and the second casing panel 101 ' are connected to each other and perpendicular to each other. In the state shown in fig. 6A, the first case connector 102 and the second case connector 102 ' may be fixedly coupled by a fastener 620 passing through the first portion 311 of the first case connector 102 and the second portion 312 ' of the second case connector 102 ', and the fastener 620 may be a bolt, a self-tapping screw, or the like.

The first seal portion 308 is angled at 45 deg. to the direction of extension of the first box panel 101 and the second seal portion 308 'is angled at 45 deg. to the direction of extension of the second box panel 101' such that when the first and second box panels 101, 101 'are connected, the first seal portion 308 can be aligned with the second seal portion 308' such that the outer side surface of the seal strip 303 of the first seal portion 308 conforms to the outer side surface of the seal strip 303 'of the second seal portion 308'. When the first box panel 101 and the second box panel 101 'are pressed by the fastening member 620, the first sealing portion 308 is pressed toward the second sealing portion 308', so that the sealing strip 303 of the first sealing portion 308 and the sealing strip 303 'of the second sealing portion 308' are pressed and deformed to form a seal, thereby preventing the fluid in the box interior 601 from communicating with the outside.

The sealing strips 303 and the connecting strips 302 prevent the inner plate 201 from being directly connected with the outer plate 202 or the base 301, and the sealing strips 303 and the connecting strips 302 are made of nonmetal materials with low heat conductivity, so that a cold bridge between the box inner plate 201 and the box outer plate 202 or the base 301 can be isolated, and the sealing and heat insulation performance of the box is ensured.

Fig. 6B is an enlarged view of a portion C of fig. 6A for illustrating the engagement between the engaging portion 330 of the first tank connector 102 and the engaging portion 330 'of the second tank connector 102'. Wherein the first case connecting member 102 and the second case connecting member 102' have the same structure, and the positions thereof may be interchanged. First, as shown in fig. 6A and 6B, the side coupling surface 542 of the first tank coupling member 102 abuts against the upper coupling surface 541 'of the second tank coupling member 102', and the upper coupling surface 541 of the first tank coupling member 102 abuts against the abutment surface 561 'of the second tank coupling member 102'. Wherein said abutment comprises that there may be a certain mounting clearance between two mutually abutting faces, which is within the allowed range of the mounting tolerance. The insertion portion 501 of the first tank connector 102 enters the second receiving portion 503 'of the second tank connector 102', and the insertion portion 501 'of the second tank connector 102' enters the first receiving portion 502 of the first tank connector 102.

In the vertical direction as shown in fig. 6A and 6B, the upper coupling face 541 of the first box link is blocked by the abutment face 561 ' of the second box link, and the first receptacle positioning face 522 of the first box link is blocked by the insert positioning face 514 ' of the second box link, so that the first box link 102 cannot move upward with respect to the second box link 102 '; the upper end of the first receiving part mating surface 521 of the first tank connector 102 is blocked by the insertion part connecting surface 515 'of the second tank connector 102' such that the first tank connector 102 cannot move downward with respect to the second tank connector 102 ', and thus the first tank connector 102 is fixed with respect to the second tank connector 102' in a vertical direction. In the horizontal direction, the insertion portion positioning surface 514 of the first case connector 102 is blocked by the second receiving portion positioning surface 532 ' of the second case connector 102 ', and the side coupling surface 542 of the first case connector 102 is blocked by the upper coupling surface 541 ' of the second case connector 102 ', so that the first case panel 101 cannot move any more in a direction approaching the second case panel 101 '. When the first and second case connectors 102 and 102 'reach the position shown in fig. 6B, the first portion 311 of the first case connector 102 and the second portion 312' of the second case connector 102 'are coupled by the fastener 620, and the first case panel 101 cannot move in a direction away from the second case panel 101', and thus the first and second case panels 101 'and 101' are fastened to each other.

Since the cross-section of the insertion portion engagement end surface 512 of the box connector 102 is circular arc-shaped, the insertion portion 501 is relatively easy to enter the corresponding first and second receiving portions 502 and 503 during the process of mounting the first and second box connectors 102 and 102'. That is, it is not necessary that the first casing panel 101 and the second casing panel 101 ' are kept perpendicular in the entire installation process, and the first fitting portion 330 can enter the second fitting portion 330 ' within a certain angle range, and it is only necessary to adjust the first casing panel 101 and the second casing panel 101 ' to be perpendicular to each other when the final position is finally reached. This will make the installation process of the entire air-conditioning case 100 easier.

In the process of installing the air-conditioning box body 100, the left box body panel and the right box body panel are respectively connected with the bottom box body panel, the top panel is connected with the left box body panel and the right box body panel, so that the four box body panels are sequentially connected to form a cylinder shape with openings at two ends, and the front box body panel and the rear box body panel are respectively installed to seal the openings of the cylinder, so that the air-conditioning box body with the six box body panels is spliced. In the process of splicing the six-plate box body panels 101 into the air-conditioning box body 100, certain deviation cannot be avoided in the splicing process, two adjacent panels cannot be aligned and perpendicular to each other, the insertion part matching end face 512 of the arc-shaped face can enable the box body panels 101 to adapt to the deviation of a certain angle in the splicing process, and only the box body panels need to be adjusted to the optimal positions before being fastened finally. And the insertion part mating end surface 512 of the circular arc surface is easy to contact with the corresponding first receiving part mating surface 521 or the second receiving part mating surface 531, i.e. slight angle deviation does not affect the line sealing formed between the insertion part mating end surface 512 and the corresponding mating surface, thereby further enhancing the sealing of the air conditioning cabinet 100.

While only certain features of the application have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the application.

Claims (10)

1. The utility model provides a box connecting piece, box connecting piece sets up the edge at the box panel for be connected with the box connecting piece of adjacent box panel, its characterized in that, box connecting piece includes:

the insertion part comprises an insertion part matching end face and an insertion part positioning face, the insertion part positioning face is connected with a first end of the insertion part matching end face, and the cross section of the insertion part matching end face is in an arc shape;

a first receiving portion having a contour that at least partially mates with the shape of the insert mating end surface and the insert locating surface;

a second receiving portion having a contour that at least partially mates with the shape of the insert mating end surface and the insert locating surface;

the first receiving portion and the second receiving portion are connected with the inserting portion positioning surface and the inserting portion matching end surface respectively.

2. A tank connector as defined in claim 1, wherein:

the first receiving part comprises a first receiving part matching surface and a first receiving part positioning surface, the shapes of the first receiving part matching surface and the first receiving part positioning surface are matched with the shapes of the insertion part matching end surface and the insertion part positioning surface respectively, one end of the first receiving part matching surface is connected with the insertion part positioning surface, the other end of the first receiving part matching surface is connected with the first receiving part positioning surface of the first receiving part, and the first receiving part positioning surface is perpendicular to the insertion part positioning surface;

the second receiving part comprises a second receiving part matching surface and a second receiving part positioning surface, the second receiving part matching surface and the second receiving part positioning surface are respectively matched with the insertion part matching end surface and the insertion part positioning surface in shape, the second receiving part positioning surface is connected with the insertion part matching end surface, and the second receiving part positioning surface is perpendicular to the insertion part positioning surface.

3. A tank connector as defined in claim 2, wherein:

the circular arc length of the cross section of the second receptacle mating surface is smaller than the circular arc length of the cross section of the insert mating end surface so that a portion of the insert enters the second receptacle when the insert is mated with the second receptacle.

4. A tank connector as defined in claim 2, wherein:

the inserting portion further comprises an inserting portion connecting surface, one end of the inserting portion connecting surface is connected with the second end of the inserting portion matching end surface, the other end of the inserting portion connecting surface is connected with the second receiving portion, and the length of the inserting portion connecting surface is smaller than that of the inserting portion positioning surface.

5. A tank connector as defined in claim 1, wherein:

the cross section of the insertion part matching end surface is semicircular, and the insertion part matching end surface is tangent to the insertion part positioning surface.

6. A tank connector as defined in claim 2, wherein:

the bottom of the box body connecting piece is provided with a connecting step which is formed by protruding towards the outside, the connecting step comprises a side connecting face, an upper connecting face and an abutting face which are sequentially connected, when two adjacent first box body connecting pieces in the box body connecting pieces are connected with second box body connecting pieces which are the same as the first box body connecting pieces, the side connecting face of the first box body connecting piece abuts against the upper connecting face of the second box body connecting piece, and the upper connecting face of the first box body connecting piece abuts against the abutting face of the second box body connecting piece.

7. A tank connector as defined in claim 6, wherein:

the distance from the first receiving part positioning surface to the second receiving part positioning surface is equal to the distance from the upper connecting surface of the connecting step to the bottom of the box body connecting piece.

8. The tank connector according to claim 1, wherein the tank connector further comprises:

the end part of the connecting strip is provided with a connecting part which is formed by respectively extending outwards in an inclined way from two sides of the end part of the connecting strip;

the connecting strip receiving part comprises a first side part second side part and a bottom part, the first side part, the bottom part and the second side part are sequentially connected to form a receiving groove for receiving the connecting part, the first side part is of a bendable structure, the first side part is provided with a first position far away from the second side part and a second position close to the second side part, when the first side part is located at the first position, the connecting strip can be placed into the connecting strip receiving part, when the connecting strip is placed into the connecting strip receiving part, the first side part can be bent towards the second side part to reach the second position, and therefore the connecting strip cannot fall off from the connecting strip receiving part.

9. A tank connector as defined in claim 8, wherein:

the inner side of the first side portion is provided with a positioning rib protruding inwards, one side of the connecting strip is provided with an inwards-recessed positioning groove, and after the connecting strip is placed into the connecting strip receiving portion, the positioning rib can enter the positioning groove.

10. A box, its characterized in that:

the box body is formed by splicing six rectangular box body panels, and the edges of each rectangular box body panel are respectively provided with four box body connecting pieces as claimed in any one of claims 1 to 9, and the box body connecting pieces are used for connecting adjacent box body panels to form the box body.

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