Connecting device

Abstract

The utility model provides a connecting device, the connecting device is used for a chair, the chair is provided with an armrest and a supporting leg, the connecting device is used for connecting the armrest and the supporting leg, the connecting device comprises a first connecting part, a second connecting part and a third connecting part, the first connecting part is connected with the armrest, and the first connecting part is provided with a first matching part; the second connecting part is provided with a second matching part, the second matching part is rotationally connected with the first matching part, and the second connecting part is connected with the supporting leg; the first connecting part is further provided with a first limiting part, and the first limiting part is arranged on the side close to the first matching part. The second connecting part is further provided with a second limiting part, and the second limiting part is arranged on the side close to the second matching part. Wherein the first connecting part is limited by the second limiting part during rotation, and the second connecting part is limited by the first limiting part during rotation, so that the first connecting part and the second connecting part are mutually fixed. According to the utility model, the storage and folding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and particularly to a connecting device. Background Art

[0002] With the increasing improvement of the quality of life, many products convenient for life have emerged as the times require. In daily life, we often use chair-like products. At present, there are many types of chairs for us to choose from. Among different needs, chairs that are convenient for storage are becoming increasingly popular. However, among the currently convenient storage chairs, there are problems of inconvenient storage process and operation, and most of them have low connection strength, posing potential safety hazards. Summary of the Utility Model

[0003] Therefore, an embodiment of the utility model provides a connecting device, which improves the storage and folding efficiency.

[0004] To solve the above problems, the utility model provides a connecting device. The connecting device is used for a chair, and the chair is provided with an armrest and a support leg. The connecting device is used to connect the armrest and the support leg. The connecting device includes: a first connecting portion, the first connecting portion is connected to the armrest, and the first connecting portion is provided with a first matching portion; a second connecting portion, the second connecting portion is provided with a second matching portion, the second matching portion is rotatably connected to the first matching portion, and the second connecting portion is connected to the support leg; and the first connecting portion is further provided with a first limiting portion, the first limiting portion is arranged on one side close to the first matching portion; the second connecting portion is further provided with a second limiting portion, the second limiting portion is arranged on one side close to the second matching portion; wherein, the first connecting portion is limited by the second limiting portion during rotation, and the second connecting portion is limited by the first limiting portion during rotation, so that the first connecting portion and the second connecting portion are fixed to each other.

[0005] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By arranging the first connecting portion and the second connecting portion to be rotatably connected through the first matching portion and the second matching portion, when folding and storing the armrest and the support leg of the chair, only by rotating the first connecting portion or the second connecting portion can the folding be completed, making the folding efficiency higher, and thus the storage efficiency higher. At the same time, by arranging the first limiting portion and the second limiting portion to limit the rotation of the first connecting portion and the second connecting portion, the rotation angle of the first connecting portion and the second connecting portion can be restricted during rotation folding, so that they can be fixed during use. At the same time, because the two limiting portions limit respectively, the fixation between the armrest and the support leg is more stable and firm during connection, and the connection strength is higher. By this means, the chair is more convenient to fold and store, and thus the storage space required by the chair is smaller. At the same time, the strength of this structure is higher, it can support more stably, and the safety is improved.

[0006] In an example of the utility model, the first connecting portion and the second connecting portion have the same structure.

[0007] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By setting the first connecting portion and the second connecting portion to have the same structure, the manufacturing cost is further reduced. At the same time, the same structure is more convenient for subsequent replacement and maintenance, without the need to prepare additional spare parts, improving the practicability.

[0008] In an example of the present utility model, the first connecting portion further includes: a first connecting member, the first connecting member connects the first mating portion, and the first connecting member is provided with a first mating groove for detachably connecting with the armrest.

[0009] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By setting the first connecting member to connect the first mating portion and providing the first mating groove, and assembling with the armrest through the first mating groove, the assembly is made simpler and faster. At the same time, the detachable connection makes subsequent maintenance and replacement more convenient, thereby making the chair more practical and the connecting device more practical.

[0010] In an example of the present utility model, the first connecting member further includes: two fixing grooves, the two fixing grooves are provided on a side away from the first mating portion, and the two fixing grooves are arranged correspondingly.

[0011] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By arranging the two fixing grooves correspondingly and fixing the armrest and the first connecting member through the two fixing grooves, the fixation between the armrest and the first connecting member is made more firm, improving the connection strength between the armrest and the first connecting member, and making the chair more stable during use.

[0012] In an example of the present utility model, the first connecting portion further includes: a first fixing member, the first fixing member connects the first connecting member; a mating arc surface is provided on a side of the first fixing member close to the first mating portion, and the mating arc surface partially fits with the second mating portion.

[0013] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By setting the first fixing member to connect the first connecting member, the connection of the first connecting member is made more firm and stable. And by providing the mating arc surface to cooperate with the second mating portion, the rotation of the second mating portion is made smoother, and the second mating portion can be restricted during rotation, making the rotation more stable. Furthermore, the folding and storage of the armrest and the support leg are made more convenient and faster, improving the storage efficiency.

[0014] In an example of the present utility model, the first fixing member and the first connecting member are cylindrical, and the diameter of the first fixing member is larger than the diameter of the first connecting member.

[0015] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By setting the diameter of the first fixing member to be larger than that of the first connecting member, the first connecting member can be limited by the first fixing member after being fixed to the armrest, making the fixation between the first connecting member and the armrest more firm, thereby resulting in higher connection strength, improving the overall stability and safety.

[0016] In an example of the present utility model, the first mating portion includes: a first receiving cavity; a mounting member disposed in the first receiving cavity, and the mounting member is provided with a locking groove that penetrates the mounting member and the first mating portion; wherein, the first connecting portion and the second connecting portion are fixed to each other through the mounting member and the locking groove.

[0017] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By disposing the mounting member in the first receiving cavity and providing the locking groove, the first connecting portion and the second connecting portion are connected through the mounting member and the locking groove, making the connection between the two more firm. Furthermore, the connection between the armrest and the support leg is also more firm, making the overall connection more stable, ensuring the stability during use. At the same time, this structure makes the connection more convenient and fast, improving the installation efficiency.

[0018] In an example of the present utility model, the first limiting portion further includes: a first protruding portion disposed on the first mating portion; a second protruding portion disposed on a side of the first fixing member close to the first protruding portion.

[0019] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By providing the first protruding portion and the second protruding portion, through the two protrusions, after the second connecting portion is installed, during rotation, the two protrusions can be respectively used for limiting, so that when the first connecting portion and the second connecting portion rotate relative to each other, they can limit each other, preventing excessive rotation, improving the use efficiency and convenience during rotation. At the same time, the fixation after limiting is also more stable, improving the structural strength.

[0020] In an example of the present utility model, the first protruding portion includes: a second receiving cavity communicating with the first receiving cavity; a strengthening portion disposed in the second receiving cavity.

[0021] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By disposing the strengthening portion in the second receiving cavity, the strength of the first protruding portion is improved through the strengthening portion, so that when the chair is in use, the connecting device will not be damaged, improving the connection strength of the structure and ensuring the stability of the connection.

[0022] After adopting the technical solution of the present utility model, the following technical effects can be achieved:

[0023] (1) By setting the first connecting part and the second connecting part to be rotationally connected through the first mating part and the second mating part, when folding and storing the armrest and the support leg of the chair, only by rotating the first connecting part or the second connecting part can the folding be completed, making the folding efficiency higher, and thus the storage efficiency higher. At the same time, by setting the first limiting part and the second limiting part to limit the rotation of the first connecting part and the second connecting part, the rotation angles of the first connecting part and the second connecting part can be restricted during rotational folding, so that it can be fixed during use. At the same time, since the two limiting parts limit respectively, the fixation when the armrest and the support leg are connected is more stable and firm, and the connection strength is higher. By this means, the chair is more convenient to fold and store, and thus the storage space required by the chair is smaller. At the same time, the strength of this structure is higher, it can support more stably, and the safety is improved;

[0024] (2) By setting the diameter of the first fixing part to be larger than the diameter of the first connecting part, the first connecting part can be limited by the first fixing part after being fixed to the armrest, making the fixation of the first connecting part and the armrest more firm, and thus the connection strength higher, improving the overall stability and safety;

[0025] (3) By setting the first protrusion part and the second protrusion part, through the two protrusions, after the second connecting part is installed, during rotation, it can be limited corresponding to the two protrusions respectively, so that the first connecting part and the second connecting part can limit each other when rotating relative to each other, preventing over-rotation, improving the use efficiency and convenience during rotation, and at the same time making the fixation after limiting more stable and improving the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 FIG. 1 is one of the structural schematic diagrams of a connection device provided by an embodiment of the present invention.

[0028] Figure 2 FIG. 2 is another structural schematic diagram of a connection device provided by an embodiment of the present invention.

[0029] Figure 3 FIG. 3 is one of the partial structural schematic diagrams of a connection device provided by an embodiment of the present invention.

[0030] Figure 4This is the second partial structural schematic diagram of a connection device provided by an embodiment of the present utility model.

[0031] Figure 5 This is the third partial structural schematic diagram of a connection device provided by an embodiment of the present utility model.

[0032] Explanation of reference numerals:

[0033] 100, connection device; 110, first connection part; 111, first mating part; 112, first limiting part; 112a, first protruding part; 112b, second protruding part; 112c, second accommodating cavity; 113, first connecting piece; 114, first mating groove; 115, fixing groove; 116, first fixing piece; 117, mating arc surface; 118, first accommodating cavity; 119a, mounting piece; 119b, locking groove; 120, second connection part; 121, second limiting part. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0035]

First Embodiment

[0036] Refer to Figures 1-5 , the present utility model provides a connection device 100. The connection device 100 is used for a chair. The chair is provided with an armrest and a support leg. The connection device 100 is used to connect the armrest and the support leg. The connection device 100 includes: a first connection part 110, the first connection part 110 is connected to the armrest, and the first connection part 110 is provided with a first mating part 111; a second connection part 120, the second connection part 120 is provided with a second mating part, the second mating part is rotatably connected to the first mating part 111, and the second connection part 120 is connected to the support leg; and the first connection part 110 is further provided with a first limiting part 112, the first limiting part 112 is arranged on a side close to the first mating part 111; the second connection part 120 is further provided with a second limiting part 121, the second limiting part 121 is arranged on a side close to the second mating part; wherein, the first connection part 110 is limited by the second limiting part 121 during rotation, and the second connection part 120 is limited by the first limiting part 112 during rotation, so that the first connection part 110 and the second connection part 120 are fixed to each other.

[0037] Specifically, when in use, first install the first connecting part 110 and the second connecting part 120 on the armrest and the support leg. First, the first connecting piece 113 of the first connecting part 110 is provided with a first fitting groove 114, which is fitted into the armrest by embedding, and then fixed by bolt connection through two fixing grooves 115.

[0038] Furthermore, since the first connecting part 110 and the second connecting part 120 have the same structure, align the second fitting part of the second connecting part 120 with the first fitting part 111, and align the mounting piece 119a and the locking groove 119b of the second connecting part 120 with the mounting piece 119a and the locking groove 119b of the first connecting part 110. At the same time, since the first limiting part 112 and the second limiting part 121 have the same structure, when installing the second connecting part 120, fit the first protrusion 112a in the second limiting part 121 of the second connecting part 120 with the second protrusion 112b of the first connecting part 110, and fit the second protrusion 112b of the second limiting part 121 with a protrusion of the first connecting part 110, then the limiting and fixing are completed, and the two are connected and fixed by bolts passing through the locking groove 119b. At the same time, connect the second connecting part 120 to the support leg in the same connection manner as the first connecting part 110 and the armrest.

[0039] Furthermore, when in use, only by rotating the armrest or the support leg can the folding and storage be completed, making the storage space required for the chair smaller.

[0040] Preferably, by setting the first connecting part 110 and the second connecting part 120 to be rotationally connected through the first fitting part 111 and the second fitting part, when the armrest and the support leg of the chair are folded and stored, only by rotating the first connecting part 110 or the second connecting part 120 can the folding be completed, making the folding efficiency higher, and thus the storage efficiency higher. At the same time, by setting the first limiting part 112 and the second limiting part 121 to limit the rotation of the first connecting part 110 and the second connecting part 120, the rotation angles of the first connecting part 110 and the second connecting part 120 can be limited during rotational folding, so that they can be fixed during use. At the same time, since the two limiting parts limit respectively, the fixation between the armrest and the support leg is more stable and firm during connection, and the connection strength is higher. By this method, the chair is more convenient for folding and storage, making the storage space required for the chair smaller. At the same time, the strength of this structure is higher, it can support more stably, and the safety is improved.

[0041] Specifically, the first connecting part 110 and the second connecting part 120 have the same structure.

[0042] Preferably, by setting the first connecting portion 110 and the second connecting portion 120 to have the same structure, the manufacturing cost is further reduced. At the same time, the same structure is more convenient for subsequent replacement and repair, eliminating the need to prepare additional spare parts and enhancing the practicality.

[0043] Specifically, the first connecting portion 110 further includes: a first connecting member 113, the first connecting member 113 connects the first mating portion 111, and the first connecting member 113 is provided with a first mating groove 114 for detachably connecting with the armrest.

[0044] Preferably, by setting the first connecting member 113 to connect the first mating portion 111 and providing the first mating groove 114 for assembling with the armrest through the first mating groove 114, the assembly is made simpler and faster. Meanwhile, the detachable connection makes subsequent repair and replacement more convenient, thereby enhancing the practicality of the chair and the connection device 100.

[0045] Specifically, the first connecting member 113 further includes: two fixing grooves 115, the two fixing grooves 115 are provided on the side away from the first mating portion 111, and the two fixing grooves 115 are arranged correspondingly.

[0046] Preferably, by setting the two fixing grooves 115 to be arranged correspondingly and fixing the armrest and the first connecting member 113 through the two fixing grooves 115, the fixation between the armrest and the first connecting member 113 is made more firm, enhancing the connection strength between the armrest and the first connecting member 113 and making the chair more stable during use.

[0047] Specifically, the first connecting portion 110 further includes: a first fixing member 116, the first fixing member 116 connects the first connecting member 113; a mating arc surface 117 is provided on the side of the first fixing member 116 close to the first mating portion 111, and the mating arc surface 117 partially fits with the second mating portion.

[0048] Preferably, by setting the first fixing member 116 to connect the first connecting member 113, the connection of the first connecting member 113 is made more firm and stable. And by providing the mating arc surface 117 to cooperate with the second mating portion, the rotation of the second mating portion is made smoother, and the second mating portion can be restricted during rotation, making the rotation more stable. Thus, the folding and storage of the armrest and the support leg are made more convenient and faster, enhancing the storage efficiency.

[0049] Specifically, the first fixing member 116 and the first connecting member 113 are cylindrical, and the diameter of the first fixing member 116 is larger than that of the first connecting member 113.

[0050] Preferably, by setting the diameter of the first fixing member 116 to be larger than that of the first connecting member 113, the first connecting member 113 can be limited by the first fixing member 116 after being fixed to the armrest, making the fixation of the first connecting member 113 and the armrest more firm, thereby making the connection strength higher and improving the overall stability and safety.

[0051] Specifically, the first mating portion 111 includes: a first receiving cavity 118; a mounting member 119a disposed in the first receiving cavity 118, and the mounting member 119a is provided with a locking groove 119b that penetrates the mounting member 119a and the first mating portion 111; wherein, the first connecting portion 110 and the second connecting portion 120 are fixed to each other through the mounting member 119a and the locking groove 119b.

[0052] Preferably, by disposing the mounting member 119a in the first receiving cavity 118 and providing the locking groove 119b, the first connecting portion 110 and the second connecting portion 120 are connected through the mounting member 119a and the locking groove 119b, making the connection between the two more firm, and thus making the connection between the armrest and the support leg more firm, making the overall connection more stable, ensuring the stability during use, and at the same time this structure makes the connection more convenient and fast, improving the installation efficiency.

[0053] Specifically, the first limiting portion 112 further includes: a first protruding portion 112a disposed on the first mating portion 111; a second protruding portion 112b disposed on a side of the first fixing member 116 close to the first protruding portion 112a.

[0054] Preferably, by providing the first protruding portion 112a and the second protruding portion 112b, after the second connecting portion 120 is installed, the rotation can be limited corresponding to the two protrusions respectively through the two protrusions, so that the first connecting portion 110 and the second connecting portion 120 can limit each other when rotating, preventing over-rotation, improving the use efficiency and convenience during rotation, and at the same time making the fixation more stable after limiting, improving the structural strength.

[0055] Specifically, the first protruding portion 112a includes: a second receiving cavity 112c communicating with the first receiving cavity 118; a strengthening portion disposed in the second receiving cavity 112c.

[0056] Preferably, by disposing the strengthening portion in the second receiving cavity 112c, the strength of the first protruding portion 112a is improved through the strengthening portion, so that when the chair is in use, the connecting device 100 will not be damaged, improving the connection strength of the structure and ensuring the stability of the connection.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connecting device, the connecting device is used for a chair, the chair is provided with an armrest and a support leg, the connecting device is used to connect the armrest and the support leg, characterized in that: The connecting device comprises: A first connecting portion (110), the first connecting portion (110) being connected to the armrest, and the first connecting portion (110) being provided with a first matching portion (111); the first connecting portion (110) further comprising: A first connecting member (113), the first connecting member (113) is connected to the first matching portion (111), and the first connecting member (113) is provided with a first matching groove (114), and the first matching groove (114) is used for detachably connecting with the armrest; A second connecting portion (120), wherein the second connecting portion (120) is provided with a second matching portion, the second matching portion and the first matching portion (111) are rotatably connected, and the second connecting portion (120) is connected to the supporting leg; The first connecting portion (110) is also provided with a first limiting portion (112), and the first limiting portion (112) is provided on a side close to the first matching portion (111); The second connecting portion (120) is further provided with a second limiting portion (121), and the second limiting portion (121) is provided on a side close to the second matching portion; The first connection part (110) is limited by the second limiting part (121) when rotating, and the second connection part (120) is limited by the first limiting part (112) when rotating, thereby fixing the first connection part (110) and the second connection part (120) to each other.

2. The connection device according to claim 1, characterized in that: The first connecting portion (110) and the second connecting portion (120) have the same structure.

3. The connection device according to claim 1, characterized in that: The first connecting member (113) further comprises: Two fixing grooves (115), the two fixing grooves (115) are arranged on a side away from the first matching portion (111), and the two fixing grooves (115) are arranged correspondingly.

4. The connection device according to claim 1, characterized in that: The first connecting portion (110) further comprises: A first fixing member (116), wherein the first fixing member (116) is connected to the first connecting member (113); A matching arc surface (117) is provided on one side of the first fixing member (116) close to the first matching portion (111), and the matching arc surface (117) is partially fitted with the second matching portion.

5. The connection device according to claim 4, characterized in that: The first fixing member (116) and the first connecting member (113) are cylindrical, and the diameter of the first fixing member (116) is greater than the diameter of the first connecting member (113).

6. The connection device according to claim 4, characterized in that: The first matching portion (111) comprises: A first accommodating chamber (118); A mounting member (119a), wherein the mounting member (119a) is disposed in the first accommodating cavity (118), and the mounting member (119a) is provided with a locking groove (119b), wherein the locking groove (119b) penetrates the mounting member (119a) and the first matching portion (111); Wherein, the first connecting portion (110) and the second connecting portion (120) are fixed to each other via the mounting member (119a) and the locking groove (119b).

7. The connection device according to claim 6, characterized in that: The first limiting portion (112) further comprises: A first protruding portion (112a), wherein the first protruding portion (112a) is disposed on the first matching portion (111); A second protruding portion (112b), wherein the second protruding portion (112b) is disposed on a side of the first fixing member (116) close to the first protruding portion (112a).

8. The connection device according to claim 7, characterized in that The first protrusion (112a) comprises: A second accommodating chamber (112c), wherein the second accommodating chamber (112c) is connected to the first accommodating chamber (118); A reinforcement portion, wherein the reinforcement portion is arranged in the second accommodating cavity (112c).

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