CN220505506U - Connecting assembly and cabinet body - Google Patents

Abstract

The utility model relates to a connecting assembly and a cabinet body, which comprise an expansion cylinder and an expansion rod, wherein the expansion cylinder comprises a first expansion section and a second expansion section which are sequentially distributed in the axial direction, and an anti-falling part is arranged on the inner wall of the expansion cylinder. The expansion rod can be inserted into the expansion cylinder, and the first expansion section and the second expansion section expand outwards under the extrusion action of the expansion rod. When the expansion rod is used, the first expansion section and the second expansion section are respectively inserted into two plates to be connected, the expansion rod enables the first expansion section and the second expansion section to expand outwards and then can be tightly matched with the devices, and therefore the two devices are connected together. The whole assembly process is simple and quick without tools. The anti-falling part is matched with the expansion rod in a concave-convex way so as to limit the relative displacement of the expansion rod and the expansion cylinder in the axial direction. The expansion rod can be stably positioned in the expansion cylinder, and the convenience of installation is further improved.

Description

Connecting assembly and cabinet body

Technical Field

The utility model relates to the technical field of cabinet accessories, in particular to a connecting assembly and a cabinet.

Background

The plurality of plates are generally connected through a three-in-one connecting piece in the cabinet body assembling process, and the three-in-one connecting piece comprises the steps of installing an embedded part, matching a screw rod with the embedded part, screwing an eccentric wheel and the like in the using process. The three-in-one connecting piece can leave a broken surface structure on the plate, and a decorative cover plate can be additionally arranged for hiding the broken surface structure. Thus, the problems of high material cost and inconvenient installation exist.

Disclosure of Invention

Based on this, it is necessary to provide a coupling assembling and cabinet body to above problem, and expansion cylinder and expansion rod combine together and can two plates of quick connect, set up on the plate moreover the blind hole can, can not have the condition that broken face exposes after the assembly, and the installation is simple swift, and the connection reliability is high.

A connection assembly, comprising:

the expansion cylinder comprises a first expansion section and a second expansion section which are sequentially distributed in the axial direction, and an anti-falling part is arranged on the inner wall of the expansion cylinder;

the expansion rod can be inserted into the expansion cylinder, the first expansion section and the second expansion section expand outwards under the extrusion action of the expansion rod, and the anti-drop part is matched with the expansion rod in a concave-convex manner so as to limit the relative displacement of the expansion rod and the expansion cylinder in the axial direction.

In one embodiment, the anti-falling portion comprises an anti-falling protrusion arranged on the inner wall surface of the expansion cylinder, the anti-falling protrusion is an annular protrusion, and a tooth slot matched with the anti-falling protrusion is arranged on the expansion rod at a position corresponding to the anti-falling protrusion.

In one embodiment, the anti-drop portion includes a plurality of the anti-drop spurs, and the plurality of the anti-drop spurs are sequentially arranged in an axial direction of the expansion cylinder.

In one embodiment, the anti-drop spike includes a spike tip and a root, the spike tip being inclined relative to the root in the direction of insertion of the expansion cylinder.

In one embodiment, the axial length of the first expansion section is greater than the axial length of the second expansion section.

In one embodiment, the anti-drop portion is formed on an inner wall of the first expansion section.

In one embodiment, the expansion cylinder further comprises a connecting section for connecting the first expansion section and the second expansion section, the first expansion section and/or the second expansion section comprises a plurality of fan-shaped expansion strips arranged at intervals along the circumferential direction, all the fan-shaped expansion strips are connected with the connecting section, and the length direction of each fan-shaped expansion strip is the axial direction of the expansion cylinder.

In one embodiment, the second expansion section has an inner diameter greater than the inner diameter of the first expansion section;

the outer diameter of the rod section, corresponding to the second expansion section, on the expansion rod is larger than that of the rod section, corresponding to the first expansion section, on the expansion rod.

In one embodiment, the outer wall surfaces of the first expansion section and the second expansion section are respectively provided with a plurality of barbs, the barbs are arranged at intervals, the inclination direction of the barbs on the first expansion section is the direction close to the second expansion section, and the inclination direction of the barbs on the second expansion section is the direction close to the first expansion section.

The cabinet body comprises at least two cabinet plates and any connecting component, wherein a first blind hole for the first expansion section to be inserted is formed in one cabinet plate, the first expansion section is in interference fit with the hole wall of the first blind hole, a second blind hole for the second expansion section to be inserted is formed in the other cabinet plate, and the second expansion section is in interference fit with the hole wall of the second blind hole.

The above-mentioned scheme provides a coupling assembling and cabinet body, and first expansion section and second expansion section insert respectively in two plates that wait to connect during the use, and the expansion rod makes first expansion section and second expansion section outwards expand and then can with the device between close fit to link together two devices. Moreover, the expansion rod positioned in the expansion cylinder is matched with the anti-falling part in a concave-convex manner, so that the expansion rod can be stably positioned in the expansion cylinder, and the convenience of installation is further improved. Specifically, in the installation process, the first expansion section of the expansion cylinder can be inserted into one of the plates to be connected, and the expansion rod is inserted into the other plate, and at this time, the expansion rod is not inserted into the expansion cylinder, so that the expansion cylinder can be conveniently inserted into the plate. And then the expansion rod is aligned with the expansion cylinder, the two plates are close to each other, and the expansion rod is gradually inserted into the expansion cylinder. Along with the increase of the insertion depth of the expansion rod, the two expansion sections of the expansion cylinder are gradually extruded to expand outwards, and the expansion cylinder is pressed between the expansion rod and the plate, so that the connection of the two plates is realized. The expansion rod is matched with the anti-falling part in a concave-convex way while extruding the expansion cylinder, and the expansion rod is matched with the expansion cylinder reliably. The whole assembly process is simple and quick without tools. Moreover, set up the blind hole on the cabinet board and supply coupling assembling to insert can, need not to set up in addition and decorate the lid, practice thrift the cost. The finally assembled cabinet body has less broken surface structure and better appearance effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of an expansion cylinder according to the present embodiment;

FIG. 2 is a cross-sectional view of the expansion cylinder of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural diagram of the expansion rod according to the present embodiment.

Reference numerals illustrate:

110. an expansion cylinder; 111. a first expansion section; 112. a second expansion section; 113. an anti-falling part; 1131. anti-drop and stab; 114. a connection section; 115. a barb; 116. a fan-shaped expansion strip; 120. an expansion rod; 121. tooth slots; 122. a front end pole section; 123. a rear end pole section.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1-4, in some embodiments, the present application provides a connection assembly including an expansion cylinder 110 and an expansion rod 120. The expansion cylinder 110 comprises a first expansion section 111 and a second expansion section 112 which are sequentially distributed in the axial direction, and an anti-falling part 113 is arranged on the inner wall of the expansion cylinder 110.

The expansion rod 120 can be inserted into the expansion cylinder 110, the first expansion section 111 and the second expansion section 112 expand outwards under the extrusion action of the expansion rod 120, and the anti-release part 113 and the expansion rod 120 are matched in a concave-convex manner so as to limit the relative displacement of the expansion rod 120 and the expansion cylinder 110 in the axial direction. The anti-falling portion 113 may be a protrusion structure disposed on the inner wall of the expansion cylinder 110, and then a groove structure matched with the protrusion structure is disposed on the expansion rod 120 at a position corresponding to the protrusion structure. The anti-falling portion 113 may be a groove structure disposed on the inner wall of the expansion cylinder 110, and then a protrusion structure matched with the groove structure is disposed on the expansion rod 120 at a position corresponding to the groove structure.

When in use, the first expansion section 111 and the second expansion section 112 are respectively inserted into two plates to be connected, and the first expansion section 111 and the second expansion section 112 are expanded outwards under the action of the expansion rod 120 to tightly match with the plates, so as to connect the two plates together. And the expansion rod 120 positioned in the expansion cylinder 110 is matched with the anti-falling part 113 in a concave-convex way, so that the expansion rod 120 can be stably positioned in the expansion cylinder 110, and the convenience of installation is further improved. Specifically, during the installation process, the first expansion section 111 of the expansion cylinder 110 may be inserted into one of the plates to be connected, and the expansion rod 120 is inserted into the other plate, and at this time, the expansion rod 120 is not inserted into the expansion cylinder 110, so that the expansion cylinder 110 can be conveniently inserted into the corresponding plate. The expansion rod 120 is then aligned with the expansion cylinder 110, the two plates are brought closer together, and the expansion rod 120 is gradually inserted into the expansion cylinder 110. As the insertion depth of the expansion rod 120 increases, the two expansion sections of the expansion cylinder 110 are gradually expanded, and the expansion cylinder 110 is compressed between the expansion rod 120 and the plate, so as to connect the two plates. The expansion rod 120 is matched with the anti-falling part 113 in a concave-convex way while pressing the expansion cylinder 110, and the expansion rod 120 is matched with the expansion cylinder 110 reliably. The whole assembly process is simple and quick without tools.

Specifically, the shape of the first expansion section 111 may be the same as or different from the shape of the second expansion section 112. The first expansion section 111 and the second expansion section 112 may be in direct contact or may be connected indirectly. For example, in certain embodiments, as shown in fig. 1 and 2, the expansion cylinder 110 further includes a connecting section 114 connecting the first expansion section 111 and the second expansion section 112.

In further detail, in some embodiments, as shown in fig. 1 and 2, the outer wall surface of the first expansion section 111 is provided with a plurality of barbs 115, the plurality of barbs 115 are arranged at intervals, the inclination direction of the barbs 115 on the first expansion section 111 is a direction close to the second expansion section 112, and thus, when the expansion cylinder 110 is inserted into a plate, the barbs 115 are pressed along the insertion direction, so that the installation is convenient.

Similarly, as shown in fig. 1 and 2, the outer wall surface of the second expansion section 112 is provided with a plurality of barbs 115, the barbs 115 are spaced apart, and the barbs 115 on the second expansion section 112 incline toward the direction approaching the first expansion section 111.

The oblique direction of the barb 115 in this application refers to the oblique direction of the piercing tip of the barb 115 relative to the root.

The inclination direction of the barbs 115 provided on the first expansion section 111 is opposite to the inclination direction of the barbs 115 provided on the second expansion section 112, and the two are inclined in opposite directions.

As shown in fig. 1, in some embodiments, the expansion cylinder 110 further includes a connection section 114 connecting the first expansion section 111 and the second expansion section 112, and the first expansion section 111 and/or the second expansion section 112 includes a plurality of fan-shaped expansion strips 116 arranged at intervals along a circumferential direction, all of the fan-shaped expansion strips 116 are connected to the connection section 114, and a length direction of each of the fan-shaped expansion strips 116 is an axial direction of the expansion cylinder 110.

After the expansion rod 120 is inserted into the expansion cylinder 110, the respective sector expansion strips 116 are pressed outward, the interval between the respective sector expansion strips 116 tends to increase, and the sector expansion strips 116 are tightly pressed between the expansion rod 120 and the plate member.

In some embodiments, as shown in FIG. 1, the barbs 115 are provided on each of the fan-shaped expansion strips 116.

In one embodiment, as shown in fig. 1 and 2, the barbs 115 are shown plastically deformable, the root portions of the barbs 115 are connected to the fan-shaped expansion strips 116, there is a gap between the barbed tips of the barbs 115 and the fan-shaped expansion strips 116 in a naturally stretched state, and when the expansion cylinder 110 is compressed between the expansion rod 120 and the plate member, the barbs 115 are deformed by compression, and the spacing between the barbed tips of the barbs 115 and the fan-shaped expansion strips 116 is reduced or even eliminated.

Further, as shown in fig. 2 and 3, in some embodiments, the anti-falling portion 113 includes an anti-falling spike 1131 disposed on an inner wall surface of the expansion cylinder 110, and the anti-falling spike 1131 is an annular spike. As shown in fig. 4, the expansion rod 120 is provided with a tooth slot 121 corresponding to the anti-drop protrusion 1131.

After the expansion rod 120 is inserted into the expansion cylinder 110, the anti-falling thorns 1131 are positioned in the tooth grooves 121, so that the relative positions of the expansion rod 120 and the expansion cylinder 110 in the axial direction are fixed.

In particular, in some embodiments, as shown in fig. 2 and 3, the anti-falling portion 113 includes a plurality of the anti-falling spurs 1131, and the plurality of the anti-falling spurs 1131 are sequentially arranged in the axial direction of the expansion cylinder 110.

The expansion rod 120 is correspondingly provided with a plurality of tooth sockets 121, and one anti-falling thorn 1131 is correspondingly provided with one tooth socket 121. The plurality of anti-falling spines 1131 are matched with the plurality of tooth grooves 121, so that the matching between the expansion rod 120 and the expansion cylinder 110 is more reliable, and the stability of the relative position between the expansion rod 120 and the expansion cylinder 110 in the axial direction is further improved.

In further detail, in certain embodiments, as shown in fig. 2-4, the anti-slip spike 1131 includes a spike tip and a root, the spike tip being inclined with respect to the root along a direction in which the expansion stem 120 is inserted into the expansion cylinder 110. In the process of inserting the expansion rod 120 into the expansion cylinder 110, the homeopathic anti-falling spines 1131 are matched with the tooth grooves 121, and the insertion process is relatively smooth. After the expansion rod 120 is inserted, the resistance force applied to the reverse expansion rod 120 is larger, and the connection between the expansion rod 120 and the expansion cylinder 110 is reliable.

As shown in fig. 1 and 2, in some embodiments, the axial length of the first expansion section 111 is greater than the axial length of the second expansion section 112. In installation, the first expansion section 111 may be inserted into one plate member, the expansion rod 120 into the other plate member, and then the two plate members are brought close to each other, and the expansion rod 120 is gradually inserted into the expansion cylinder 110. During the process of inserting the expansion rod 120 into the expansion cylinder 110, the expansion rod 120 is inserted into the second expansion section 112 and then gradually inserted into the first expansion section 111. Because the axial length of the first expansion section 111 is longer, the expansion cylinder 110 can be more stably positioned in the hole of the plate when the expansion rod 120 is not inserted into the expansion cylinder 110 after the first expansion cylinder 110 is inserted into the plate at the beginning.

In addition, in the process that the subsequent plates are gradually approached, the depth of the expansion rod 120 inserted into the expansion cylinder 110 is increased, and finally the second expansion section 112 is gradually extruded into the gap between the expansion rod 120 and the expansion cylinder 110 along the axial direction, and the gap space is limited, so that the axial length of the second expansion section 112 is designed to be smaller, so that the second expansion section 112 is conveniently inserted.

As shown in fig. 2, in some embodiments, the inner diameter of the second expansion section 112 is greater than the inner diameter of the first expansion section 111;

as shown in fig. 4, the outer diameter of the expansion rod 120 corresponding to the second expansion section 112 is larger than the outer diameter of the expansion rod 120 corresponding to the first expansion section 111.

The shaft section of the expansion shaft 120 that is ultimately used to compress the first expansion section 111 is defined as a front end shaft section 122, and the shaft section of the expansion shaft 120 that is ultimately used to compress the second expansion section 112 is defined as a rear end shaft section 123, with the outer diameter of the front end shaft section 122 being smaller than the outer diameter of the rear end shaft section 123.

In the initial stage of installation, the rear end rod section 123 is inserted in the hole of one plate member, and the first expansion section 111 is inserted in the hole of the other plate member. Then, in the process of approaching the two plates, the front end rod section 122 is inserted into the second expansion section 112 of the expansion cylinder 110, and the insertion process is smoother because the outer diameter of the front end rod section 122 is smaller, so that the front end rod section 122 does not squeeze the second expansion section 112, and the second expansion section 112 is not deformed. As the depth of insertion increases, there is a frictional force between the front-end shaft section 122 and the first expansion section 111 as the front-end shaft section 122 enters the first expansion section 111, requiring an increase in the force exerted on the two plates to bring them toward each other until the front-end shaft section 122 is fully inserted into the first expansion section 111, and the second expansion section 112 is pressed into the gap between the rear-end shaft section 123 and the plates.

Further, as shown in fig. 2 and 3, in some embodiments, the drop-off preventing portion 113 is formed on an inner wall of the first expansion section 111. The final expansion rod 120 is inserted into the first expansion section 111 while the release preventing portion 113 is in concave-convex engagement with the expansion rod 120.

As shown in fig. 4, the portion of the expansion rod 120 for being in concave-convex engagement with the drop preventing portion 113 is the front end rod section 122. A spline 121 is formed on the front end pole segment 122.

Still further, in still other embodiments of the present application, there is provided a cabinet, including at least two cabinet panels and any one of the above connection assemblies, wherein a first blind hole for inserting the first expansion section 111 is provided on one of the cabinet panels, the first expansion section 111 is in interference fit with a hole wall of the first blind hole, a second blind hole for inserting the second expansion section 112 is provided on the other cabinet panel, and the second expansion section 112 is in interference fit with a hole wall of the second blind hole.

The cabinet plate is provided with the blind holes, and a decorative cover is not required to be additionally arranged, so that the cost is saved. The finally assembled cabinet body has less broken surface structure and better appearance effect. Two cabinet boards are defined to be a first cabinet board and a second cabinet board respectively, a first blind hole is formed in the first cabinet board, and a second blind hole is formed in the second cabinet board. When the expansion rod is installed, the first expansion section 111 is inserted into the first blind hole, and the rear end rod section 123 of the expansion rod 120 is inserted into the second blind hole. The first and second cabinet panels are then brought closer to each other and the expander 120 is gradually inserted into the expander cylinder 110 until the front end rod section 122 is inserted into the first expander section 111 and the rear end rod section 123 is inserted into the second expander section 112. The bottom wall of each blind hole may also provide thrust to the expander stem 120 and the expander cylinder 110 during this process.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

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

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A connection assembly, comprising:

the expansion cylinder comprises a first expansion section and a second expansion section which are sequentially distributed in the axial direction, and an anti-falling part is arranged on the inner wall of the expansion cylinder;

the expansion rod can be inserted into the expansion cylinder, the first expansion section and the second expansion section expand outwards under the extrusion action of the expansion rod, and the anti-drop part is matched with the expansion rod in a concave-convex manner so as to limit the relative displacement of the expansion rod and the expansion cylinder in the axial direction.

2. The connection assembly according to claim 1, wherein the anti-falling portion comprises an anti-falling spike arranged on the inner wall surface of the expansion cylinder, the anti-falling spike is an annular spike, and a tooth slot matched with the anti-falling spike is arranged on the expansion rod at a position corresponding to the anti-falling spike.

3. The connection assembly according to claim 2, wherein the escape prevention portion includes a plurality of the escape prevention spurs, the plurality of the escape prevention spurs being sequentially arranged in an axial direction of the expansion cylinder.

4. The connection assembly of claim 2, wherein the anti-slip spike comprises a spike tip and a root, the spike tip being inclined relative to the root along a direction in which the expansion rod is inserted into the expansion cylinder.

5. A connection assembly according to any one of claims 1 to 3, wherein the axial length of the first expansion section is greater than the axial length of the second expansion section.

6. A connection assembly according to any one of claims 1 to 3, wherein the anti-slip portion is formed on an inner wall of the first expansion section.

7. A connection assembly according to any one of claims 1 to 3, wherein the expansion vessel further comprises a connection section connecting the first expansion section and the second expansion section, the first expansion section and/or the second expansion section comprising a plurality of circumferentially spaced apart fan-shaped expansion strips, all of which are connected to the connection section, the length of each of which is axial to the expansion vessel.

8. A connection assembly according to any one of claims 1 to 3, wherein the inner diameter of the second expansion section is greater than the inner diameter of the first expansion section;

the outer diameter of the rod section, corresponding to the second expansion section, on the expansion rod is larger than that of the rod section, corresponding to the first expansion section, on the expansion rod.

9. A connection assembly according to any one of claims 1 to 3, wherein the outer wall surfaces of the first and second expansion sections are each provided with a plurality of barbs, the plurality of barbs being spaced apart, the direction of inclination of the barbs on the first expansion section being in a direction approaching the second expansion section, the direction of inclination of the barbs on the second expansion section being in a direction approaching the first expansion section.

10. The cabinet body is characterized by comprising at least two cabinet plates and the connecting assembly according to any one of claims 1 to 9, wherein a first blind hole for the first expansion section to be inserted is formed in one cabinet plate, the first expansion section is in interference fit with the hole wall of the first blind hole, a second blind hole for the second expansion section to be inserted is formed in the other cabinet plate, and the second expansion section is in interference fit with the hole wall of the second blind hole.