Connecting structure and climbing frame using same

Abstract

The connecting structure comprises a connecting pipe and a connecting piece, at least two connectors are arranged on the connecting piece, a cavity, a first hole and a second hole are formed in each connector, a first button and a second button are movably arranged in each cavity, each first button penetrates out of the corresponding first hole, and each second button penetrates out of the corresponding second hole. The outer diameter of the second button is matched with the inner diameter of the second hole; fixing holes consistent with the second holes in inner diameter are formed in the two ends of the connecting pipe; the first button, the second button, the connector and the connecting pipe form a locking state and an unlocking state, in the locking state, the connector is sleeved with the connecting pipe, and the end of the second button penetrates out of the second hole and the fixing hole. The first button penetrates out of the connector and is exposed out of the connecting pipe, and when a user presses the first button, fingers cannot be squeezed into the first hole, so that the safety during assembly is improved; a user can loosen the first button after the second button is aligned with the fixing hole, so that the accuracy of the second button penetrating out of the fixing hole is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of children's climbing facilities, in particular to a connecting structure and a climbing frame using the connecting structure. Background Art

[0002] A children's climbing frame is a children's entertainment facility. The climbing frame in the prior art includes interconnected tube bodies, one end of the tube body is movably provided with a marble, and the other end of the tube body is provided with a round hole. When the two tube bodies are assembled, the end of the tube body provided with the marble is first inserted into the end of the other tube body provided with the round hole, and the marble passes through the round hole and is clamped in the round hole, thereby realizing the connection and fixation of adjacent tube bodies.

[0003] When the adjacent tubes need to be removed, the fixation between the adjacent tubes can be released by pressing the marble into the round hole. When the user presses the marble, the finger is often inserted into the round hole. When there are burrs on the inner wall of the round hole, the finger will be scratched, which brings certain inconvenience to the user, so improvement is needed. Summary of the invention

[0004] The utility model aims at the defects in the prior art that fingers may be squeezed into round holes and thus injured when assembling a climbing frame, and provides a new connection structure and a climbing frame using the connection structure.

[0005] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0006] A connection structure comprises a connection pipe and a connection piece, wherein at least two connection heads are arranged on the connection piece, a cavity is formed in the connection head, a first hole and a second hole communicating with the cavity are penetrated on the connection head, a first button and a second button are movably arranged in the cavity, the first button passes through the first hole, and the first button drives the second button to pass through the second hole or retreat into the second hole, and the outer diameter of the second button is adapted to the inner diameter of the second hole; fixing holes are provided at both ends of the connection pipe, and the inner diameters of the fixing holes and the second hole are consistent; a locking state and an unlocking state are formed between the first button, the second button, the connection head and the connection pipe, and in the locking state, one end of the connection pipe is sleeved on the connection head, the fixing hole is directly opposite to the second hole, and the end of the second button passes through the second hole and the fixing hole; in the unlocking state, the first button drives the second button to move inward, and the end of the second button retreats into the second hole.

[0007] In the locked state or the unlocked state, the first button passes through the connecting head and is exposed on the connecting tube, so that when the user presses the first button to drive the second button to move, the finger will not be squeezed into the first hole, thereby improving the user's safety during assembly; the user can release the first button after the second button is aligned with the fixing hole, thereby improving the accuracy and convenience of the second button passing through the fixing hole.

[0008] Preferably, in the above-mentioned connection structure, the second button is provided with a giving way surface opposite to the first button, the giving way surface is inclined along the height direction of the second button, and the width of the second button gradually decreases upward along the height direction of the giving way surface.

[0009] On the one hand, the lower end of the yield surface is inclined away from the first button. Therefore, when the connecting tube is sleeved on the connecting head and moved toward the connecting piece, the yield surface can play a guiding role, so that the end of the connecting tube can slide along the yield surface and press the second button into the second hole, thereby eliminating the need for the user to press the first button to drive the second button to move inward, thereby improving the convenience of sleeved and fixed on the connecting head of the connecting head; on the other hand, the setting of the yield surface makes the width of the upper end of the second button smaller than the inner diameter of the fixing hole and the second hole, thereby improving the smoothness of the second button being inserted into or out of the fixing hole.

[0010] Preferably, in the above-described connection structure, the connecting head includes a first section and a second section, the outer diameter of the first section is larger than the outer diameter of the second section, the first hole is arranged on the first section, and the second hole is arranged on the second section; the inner diameter of the connecting tube is matched with the outer diameter of the second section, and in the locked state, the end of the connecting tube is against the first section.

[0011] The first section limits the distance between the connecting pipe sleeve and the connecting head, so that the fixing hole can be quickly aligned with the second hole, further improving the convenience during assembly.

[0012] Preferably, in the above-described connection structure, a guide column is provided in the cavity, and the guide column extends along the central axis direction of the first hole; it also includes a fixing plate, the first button and the second button are respectively provided at both ends of the fixing plate, and the fixing plate is penetrated by a through hole, and the guide column passes through the through hole.

[0013] The first button and the second button slide along the guide column through the through hole, which improves the stability of the first button and the second button sliding along the fixed direction and improves the accuracy of the second button being inserted into the fixing hole or withdrawn from the fixing hole.

[0014] Preferably, the above-mentioned connection structure further includes a cover plate, a locking hole is formed on the cover plate, the longitudinal section of the locking hole is stepped, and a positioning surface is formed in the locking hole; a plug-in slot is formed on the connecting head, the cover plate is inserted into the plug-in slot, the shape of the cover plate and the plug-in slot are adapted, and the end of the guide column is inserted into the locking hole and abuts against the positioning surface.

[0015] The plug-in cooperation between the cover plate and the plug-in slot facilitates the installation of the first button, the second button and the fixing plate in the cavity; the pre-positioning of the cover plate is achieved through the positioning surface, the locking hole and the guide column, which facilitates the fastener to pass through the locking hole and tighten it in the guide column, thereby improving the convenience of cover plate installation.

[0016] Preferably, in the above-mentioned connection structure, an elastic member is provided in the cavity, one end of the elastic member abuts against the inner wall of the first section, and the other end of the elastic member abuts against the first button, and the elastic member pushes the first button to pass through the first hole.

[0017] The provision of the elastic member enables the first button to be reset, thereby improving the convenience of using the first button.

[0018] Preferably, in the above-described connection structure, a limiting groove is provided on the lower surface of the first button, a mounting column opposite to the first button is provided on the cover plate, the mounting column is hollow inside, and both ends of the elastic member are respectively inserted into the limiting groove and the mounting column.

[0019] The arrangement of the limiting groove and the mounting column improves the stability of the elastic member in the extension and contraction direction, and further improves the accuracy of the first button driving the second button to move.

[0020] A climbing frame comprises an upper part and a lower part composed of the above-mentioned connecting structure, wherein the upper part is detachably arranged on the upper end of the lower part through a connecting head.

[0021] The climbing frame is composed of a connecting pipe, a connecting head, a connecting piece, a first button and a second button, which is not only convenient for assembly but also improves the safety when assembling the climbing frame.

[0022] Preferably, in the climbing frame described above, the upper portion is rectangular, the lower portion is hemispherical, and the upper portion is located in the middle of the upper surface of the lower portion.

[0023] The lower part is hemispherical, which increases the width below the climbing frame and avoids the climbing frame from tipping over. The upper part is arranged in the middle of the upper surface of the lower part, which further improves the stability of the climbing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a structural schematic diagram of the utility model in which the first button, the second button, the connector and the connecting pipe are in a locked state;

[0025] Figure 2 This is a schematic diagram of the structure of the first button, the second button, and the connector of the utility model;

[0026] Figure 3 It is a cross-sectional view of the first button, the second button and the connector of the utility model in an exploded state;

[0027] Figure 4 It is a cross-sectional view of the first button, the second button, the connector and the connecting pipe of the utility model in a locked state;

[0028] Figure 5 It is a structural schematic diagram of the climbing frame of the utility model. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0030] Example 1

[0031] like Figure 1-Figure 5 As shown, a connection structure includes a connection pipe 1 and a connection member 2, wherein the connection member 2 is provided with at least two connection heads 3, wherein a cavity 31 is formed in the connection head 3, wherein a first hole 32 and a second hole 33 communicating with the cavity 31 are penetrated through the connection head 3, wherein a first button 4 and a second button 5 are movably arranged in the cavity 31, wherein the first button 4 passes through the first hole 32, and the first button 4 drives the second button 5 to pass through the second hole 33 or to retreat into the second hole 33, and the outer diameter of the second button 5 is adapted to the inner diameter of the second hole 33; Both ends of the connecting tube 1 are provided with fixing holes 11, and the inner diameter of the fixing holes 11 is consistent with that of the second hole 33; a locked state and an unlocked state are formed between the first button 4, the second button 5, the connecting head 3, and the connecting tube 1. In the locked state, one end of the connecting tube 1 is sleeved on the connecting head 3, the fixing hole 11 is opposite to the second hole 33, and the end of the second button 5 passes through the second hole 33 and the fixing hole 11; in the unlocked state, the first button 4 drives the second button 5 to move inward, and the end of the second button 5 retreats into the second hole 33.

[0032] Preferably, the second button 5 is provided with a clearance surface 51 opposite to the first button 4 , the clearance surface 51 is inclined along the height direction of the second button 5 , and the width of the second button 5 gradually decreases upward along the height direction of the clearance surface 51 .

[0033] Preferably, the connector 3 includes a first section 301 and a second section 302, the outer diameter of the first section 301 is larger than the outer diameter of the second section 302, the first hole 32 is arranged on the first section 301, and the second hole 33 is arranged on the second section 302; the inner diameter of the connecting tube 1 is adapted to the outer diameter of the second section 302, and in the locked state, the end of the connecting tube 1 is against the first section 301.

[0034] Preferably, a guide column 311 is provided in the cavity 31, and the guide column 311 extends along the central axis direction of the first hole 32; it also includes a fixing plate 6, and the first button 4 and the second button 5 are respectively arranged at both ends of the fixing plate 6, and a through hole 61 is penetrated on the fixing plate 6, and the guide column 311 passes through the through hole 61.

[0035] Preferably, it further includes a cover plate 7, which is provided with a locking hole 71, the longitudinal section of which is stepped, and a positioning surface 711 is formed in the locking hole 71; the connector 3 is provided with a plug-in slot 34, the cover plate 7 is inserted into the plug-in slot 34, the shape of the cover plate 7 is adapted to that of the plug-in slot 34, and the end of the guide column 311 is inserted into the locking hole 71 and abuts against the positioning surface 711.

[0036] Preferably, an elastic member 312 is provided in the cavity 31 , one end of the elastic member 312 abuts against the inner wall of the first section 301 , and the other end of the elastic member 312 abuts against the first button 4 , and the elastic member 312 pushes the first button 4 out of the first hole 32 .

[0037] Preferably, a limiting groove 41 is provided on the lower surface of the first button 4, and a mounting column 712 facing the first button 4 is provided on the cover plate 7. The mounting column 712 is hollow inside, and both ends of the elastic member 312 are respectively inserted into the limiting groove 41 and the mounting column 712.

[0038] A climbing frame comprises an upper part 8 and a lower part 9 formed by the above-mentioned connection structure, wherein the upper part 8 is detachably arranged on the upper end of the lower part 9 via a connection head 3.

[0039] Preferably, the upper portion 8 is rectangular, the lower portion 9 is hemispherical, and the upper portion 8 is located in the middle of the upper surface of the lower portion 9 .

[0040] Specifically, Figure 2-Figure 4 As shown, when installing the first button 4 and the second button 5 on the connector 3, first align the first button 4 and the second button 5 with the first hole 32 and the second hole 33 respectively, then sleeve the fixing plate 6 on the guide column 311 through the through hole 61 and put it into the cavity 31, at this time, the ends of the first button 4 and the second button 5 will pass through the first button 4 and the second button 5 respectively.

[0041] Then, the elastic member 312 is placed into the limiting groove 41, and the mounting column 712 on the cover plate 7 is aligned with the end of the elastic member 312, and the cover plate 7 is inserted into the plug-in groove 34, and the end of the guide column 311 is inserted into the locking hole 71 and abutted against the positioning surface 711, and finally, a fastener such as a screw is passed through the locking hole 71 and tightened in the guide column 311, thereby completing the assembly of the first button 4, the second button 5 and the connector 3. In the embodiment of the present application, the elastic member 312 is a spring.

[0042] like Figure 3 As shown, the longitudinal section of the locking hole 71 is stepped, the inner diameter of the upper end of the locking hole 71 is smaller than the inner diameter of the lower end of the locking hole 71, and the positioning surface 711 is located at the junction of the upper end and the lower end of the locking hole 71. The upper surface of the cover plate 7 is also provided with a conical groove coaxially arranged with the locking hole 71, and the width of the conical groove gradually decreases downward along the depth direction of the locking hole 71. The conical groove realizes the concealed installation of fasteners such as screws, thereby improving the safety during use.

[0043] More specifically, when installing the connecting tube 1 and the connector 3, one end of the connecting tube 1 is first sleeved on the second section 302, and then the connecting tube 1 is moved toward the first section 301. The end of the connecting tube 1 will slide along the clearance surface 51 and abut against the second button 5. At this time, the user can rotate the connecting tube 1 to make the fixing hole 11 face the second hole 33 while driving the connecting tube 1 to continue moving toward the first section 301. As the connecting tube 1 moves further, the second button 5 is squeezed by the connecting tube 1 and retreats into the second hole 33. When the connecting tube 1 abuts against the first section 301, the end of the second button 5 passes through the fixing hole 11 under the action of the first button 4 and the elastic member 312, and the fixing between the connecting tube 1 and the connector 3 is completed.

[0044] When it is necessary to remove the connecting tube 1 from the connecting head 3 , the user can press the first button 4 to retract the second button 5 into the second hole 33 , and then remove the connecting tube 1 from the connecting head 3 .

[0045] In an embodiment of the present application, when the connecting pipe 1 is placed horizontally, the centers of the two fixing holes 11 on the same connecting pipe 1 are on different horizontal lines, so that the fixing points of the connecting pipe 1 and the connecting piece 2 are more balanced, thereby improving the balance of the connecting pipe 1 when subjected to force.

[0046] like Figure 5 As shown, a climbing frame can be obtained by assembling a connecting pipe 1, a connecting piece 2, and a connecting head 3. In the embodiment of the present application, the climbing frame includes a rectangular upper part 8 and a hemispherical lower part 9, and the upper part 8 is installed in the middle position of the upper surface of the lower part 9.

[0047] The number and extension direction of the connecting heads 3 on a connecting member 2 can be changed according to usage requirements. In the embodiment of the present application, the climbing frame includes a three-head connecting member 2, a four-head connecting member 2, a five-head connecting member 2 and a six-head connecting member 2.

[0048] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. A connection structure, comprising a connection pipe (1), characterized in that: The invention also comprises a connecting member (2), wherein the connecting member (2) is provided with at least two connecting heads (3), wherein a cavity (31) is formed in the connecting head (3), wherein a first hole (32) and a second hole (33) communicating with the cavity (31) are formed through the connecting head (3), wherein a first button (4) and a second button (5) are movably provided in the cavity (31), wherein the first button (4) passes through the first hole (32), and the first button (4) drives the second button (5) to pass through the second hole (33) or to retract into the second hole (33), and the outer diameter of the second button (5) is adapted to the inner diameter of the second hole (33); A fixing hole (11) is provided at each end, and the inner diameter of the fixing hole (11) is consistent with that of the second hole (33); a locked state and an unlocked state are formed between the first button (4), the second button (5), the connecting head (3), and the connecting tube (1); in the locked state, one end of the connecting tube (1) is sleeved on the connecting head (3), the fixing hole (11) and the second hole (33) are directly opposite, and the end of the second button (5) passes through the second hole (33) and the fixing hole (11); in the unlocked state, the first button (4) drives the second button (5) to move inward, and the end of the second button (5) retreats into the second hole (33).

2. A connection structure according to claim 1, characterized in that: The second button (5) is provided with a clearance surface (51) opposite to the first button (4); the clearance surface (51) is arranged obliquely along the height direction of the second button (5); and the width of the second button (5) gradually decreases upward along the height direction of the clearance surface (51).

3. A connection structure according to claim 1, characterized in that: The connector (3) comprises a first section (301) and a second section (302); the outer diameter of the first section (301) is greater than the outer diameter of the second section (302); the first hole (32) is arranged on the first section (301), and the second hole (33) is arranged on the second section (302); the inner diameter of the connecting tube (1) is matched with the outer diameter of the second section (302); in a locked state, the end of the connecting tube (1) abuts against the first section (301).

4. A connection structure according to claim 3, characterized in that: The cavity (31) is provided with a guide column (311), and the guide column (311) extends along the central axis direction of the first hole (32); and further comprises a fixing plate (6), the first button (4) and the second button (5) being respectively arranged at two ends of the fixing plate (6), and a through hole (61) passing through the fixing plate (6), and the guide column (311) passes through the through hole (61).

5. A connection structure according to claim 4, characterized in that: The invention also comprises a cover plate (7), wherein a locking hole (71) is provided on the cover plate (7), wherein the longitudinal section of the locking hole (71) is stepped, and a positioning surface (711) is formed in the locking hole (71); wherein a plug-in slot (34) is provided on the connector (3), wherein the cover plate (7) is inserted into the plug-in slot (34), wherein the shape of the cover plate (7) and the plug-in slot (34) are adapted, and wherein the end of the guide column (311) is inserted into the locking hole (71) and abuts against the positioning surface (711).

6. A connection structure according to claim 5, characterized in that: An elastic member (312) is arranged in the cavity (31), one end of the elastic member (312) abuts against the inner wall of the first section (301), and the other end of the elastic member (312) abuts against the first button (4), and the elastic member (312) pushes the first button (4) to pass through the first hole (32).

7. A connection structure according to claim 6, characterized in that: A limiting groove (41) is provided on the lower surface of the first button (4), and a mounting column (712) is provided on the cover plate (7) and is directly opposite to the first button (4). The mounting column (712) is hollow inside, and two ends of the elastic member (312) are respectively inserted into the limiting groove (41) and the mounting column (712).

8. A climbing frame, characterized in that: It comprises an upper part (8) and a lower part (9) composed of a connection structure according to any one of claims 1 to 7, wherein the upper part (8) is detachably arranged on the upper end of the lower part (9) via a connecting head (3).

9. A climbing frame according to claim 8, characterized in that: The upper part (8) is rectangular, the lower part (9) is hemispherical, and the upper part (8) is located in the middle of the upper surface of the lower part (9).

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