Connecting module and modular assembly furniture

Abstract

The present invention relates to the technical field of modular assembled furniture, and in particular to a connection module and modular assembled furniture, comprising: a housing, a direction-changing device, a propulsion device, and an adapter module, wherein the housing is provided with a first hole and a second hole, wherein the first hole is vertically connected to the second hole, and a nut groove is provided near the opening of the first hole; the direction-changing device comprises an input member and an output member, wherein the input member and the output member are respectively provided in the second hole and the first hole, and horizontal rotation of the input member drives the output member to rotate vertically; the propulsion device is provided in the first hole, and comprises a bolt and a nut, wherein the nut is provided in the nut groove, the bolt comprises a threaded portion and a smooth portion, wherein the threaded portion is threadedly connected to the nut, and the smooth portion is axially slidably connected to the output member, the smooth portion is provided with a retaining spring groove, wherein a retaining spring is provided in the retaining spring groove, and a spring is provided between the retaining spring and the nut; the adapter module is provided outside the housing and is threadedly connected to the bolt after the bolt is pushed in. The present invention saves time and effort in installation and provides a tight connection.

Description

Technical Field

[0001] The present invention relates to the technical field of modular assembled furniture, and in particular to a connecting module and modular assembled furniture. Background Art

[0002] At present, most existing frame boxes, brackets or other supporting structures use plug-in, welding, gluing or threaded connection to achieve the connection between the adapter and the connecting pipe. Threaded connection is popular because of its firm connection and convenient installation and disassembly. Most of the threaded connections used by existing frame boxes, brackets or other supporting structures are directly tapped or threaded at the connecting end of the connecting pipe, and corresponding threaded or tapped at the connecting end of the adapter. During the installation process, the connection between the connecting pipe and the adapter is achieved by rotating the entire connecting pipe or adapter along the axis of the connecting pipe. However, this current connection method is laborious to install because it requires rotating the entire connecting pipe or adapter along the axis of the connecting pipe. This is especially time-consuming and labor-intensive when connecting connecting pipes with larger diameters, longer lengths, and heavier masses. For brackets with complex structures, it is often necessary to assemble multiple bracket structures together. Rotating the entire bracket structure along the axis of the connecting pipe is obviously inappropriate.

[0003] Therefore, the existing technology has the problems of being time-consuming and labor-intensive to install and being difficult to apply to large-sized, heavy-weight connecting pipes and brackets with complex structures. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a connection module, including: a shell, a changing device, a propulsion device and an adapter module, the shell is provided with a first hole and a second hole, the first hole is vertically connected to the second hole, and a nut groove is provided near the hole mouth of the first hole; the changing device includes an input member and an output member, the input member and the output member are respectively arranged in the second hole and the first hole, the input member is connected to the output member, and horizontal rotation of the input member drives the output member to rotate vertically; the propulsion device is arranged in the first hole, the propulsion device includes a bolt and a nut, the nut is arranged in the nut groove, the bolt includes a threaded portion and a smooth portion, the threaded portion is threadedly connected to the nut, the smooth portion is radially fixed and axially slidably connected to the output member, the smooth portion is provided with a retaining ring groove, a retaining ring is provided in the retaining ring groove, a spring is provided between the retaining ring and the nut, and the spring is arranged on the bolt; the adapter module is arranged outside the shell, includes a thread matching the bolt, and is threadedly connected to the bolt after the bolt is pushed.

[0005] Wherein, the connecting module is installed in the connecting pipe.

[0006] Furthermore, the input member is a driving bevel gear, the input end of which is provided with a positioning slot; the output member is a driven bevel gear, the output end of which is provided with a connecting portion, which is connected to one end of the smooth portion of a bolt, and the driven bevel gear meshes with the driving bevel gear. The positioning slot is a straight or cross-shaped slot. During use, a suitable screwdriver is placed in the positioning slot, and rotating the screwdriver causes the driving bevel gear to rotate horizontally, thereby driving the driven bevel gear to rotate vertically.

[0007] In other embodiments, the input member and the output member may also adopt other steering transmission shafts that can achieve 90° steering.

[0008] Furthermore, a connecting head is provided at one end of the smooth portion of the bolt, and the connecting head is connected to the connecting portion.

[0009] Further, the connecting head is in the shape of a regular hexagonal prism, the connecting portion is in the shape of a column, the connecting portion is provided with a regular hexagonal blind hole at one end away from the driven bevel gear, the connecting head is arranged in the regular hexagonal blind hole, and slides axially along the regular hexagonal blind hole; or the connecting head is in the shape of a regular quadrangular prism, the connecting portion is in the shape of a column, the connecting portion is provided with a square blind hole at one end away from the driven bevel gear, the connecting head is arranged in the square blind hole, and slides axially along the square blind hole; or the connecting head is in the shape of a column, the end face of the connecting head is provided with a regular hexagonal blind hole, the connecting portion is in the shape of a regular hexagonal prism, the connecting portion is arranged in the regular hexagonal blind hole, and slides axially along the regular hexagonal blind hole; or the connecting head is in the shape of a column, the end face of the connecting head is provided with a square blind hole, the connecting portion is in the shape of a regular quadrangular prism, the connecting portion is arranged in the square blind hole, and slides axially along the square blind hole.

[0010] Furthermore, it also includes a limiting device, which is installed on the shell. The limiting device includes a limiting part and a limiting foot. The limiting part is connected to the limiting foot. The limiting part is provided with an adjustment port, and the adjustment port is opposite to the input end of the input member.

[0011] By setting the upper surface of the limiting portion to a horizontal structure, the connection module is used for square connecting pipes; by setting the upper surface of the limiting portion to a structure with a certain curvature, the connection module is used for circular connecting pipes.

[0012] Furthermore, the housing further defines a limit hole for receiving the limit foot. A rubber ring groove is defined within the limit hole, and a rubber ring is disposed within the rubber ring groove. When the connection module is placed into the connection tube and the limit device is then inserted into the limit hole of the housing, the rubber ring and the limit foot of the limit device form an interference fit, firmly locking the limit device. At this point, the limit portion of the limit device protrudes above the connection module and fits snugly into the opening of the connection tube, thereby securing the connection module and the connection tube.

[0013] Furthermore, the outer shell is assembled from a first shell and a second shell, and the outer shell has an elliptical cross-section. Correspondingly, the inner cross-section of the connecting tube also has an elliptical shape. This makes it easier to align the second hole of the connecting module with the opening on the connecting tube when the connecting module is installed in the connecting tube, without having to rotate the connecting module to align the positions.

[0014] Furthermore, a brim is provided on one end of the smooth portion of the bolt, and a limiting protrusion is provided in the first hole near the output member, the limiting protrusion being configured to abut against the brim of the bolt. By providing the limiting protrusion against the brim of the bolt, the advancement distance of the bolt is limited, thereby preventing the bolt's connecting head from being dislodged from the connection portion of the output member, thereby preventing failure of the advancement device.

[0015] Furthermore, the adapter module includes a multi-way connector and a protective shell. The multi-way connector has internal threads adapted to the bolts and is disposed within the protective shell. The protective shell has a shape adapted to the connection module. The adapter module is used to threadably connect with the bolts and, when the threaded portion of the bolt is disengaged from the nut, replaces the function of the nut, allowing the bolt to continue to advance.

[0016] Furthermore, the end surface of the threaded portion of the bolt is provided with a safety groove, which is a hexagonal blind hole or a square blind hole. By placing a screwdriver of corresponding shape in the safety groove, the screwdriver is rotated to withdraw the bolt from the adapter module, thereby disassembling the connection module.

[0017] The present invention also provides a modular assembled furniture having the connection module as described above.

[0018] In summary, the beneficial effects of the present invention are:

[0019] 1. By arranging two bevel gears before the propulsion device, the horizontal rotational motion is converted into the vertical rotational motion, so that the bolt can make a spiral motion along the axis in the horizontal direction, and the purpose of tightening can be achieved without rotating the entire connecting pipe. Compared with the prior art that requires rotating the entire connecting pipe along the axis to achieve connection and fixation, the present invention can save time and effort in the installation process and can be applied to large-size, large-mass connecting pipes and brackets with complex structures.

[0020] 2. By providing a retaining ring groove, a retaining ring in the retaining ring groove, and a spring between the nut and the retaining ring, when the bolt advances spirally, since the retaining ring is fixed on the bolt, the retaining ring advances along with the bolt and compresses the spring. When the threaded portion of the bolt disengages from the nut, the adapter module enables the bolt to continue to advance, the smooth portion of the bolt passes through the nut, and the spring rebounds, driving the bolt and the adapter module connected to the bolt to move toward one end of the output part. On the one hand, the threaded portion of the bolt is always in contact with the thread of the nut, which is convenient for disassembly. On the other hand, the adapter module and the connection module can be more closely fitted. When used in assembled furniture, it makes the assembled furniture smoother and more beautiful, and avoids hair and silk threads being stuck in gaps, which may injure the hair of people and pets and damage textiles.

[0021] In order to make the above and other objects, features and advantages of the present invention more clearly understood, preferred embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic cross-sectional view of a connection module provided in an embodiment of the present invention;

[0023] Figure 2 A front view of a direction-changing device provided by an embodiment of the present invention;

[0024] Figure 3 A top view of a direction-changing device provided in an embodiment of the present invention;

[0025] Figure 4 A perspective view of a propulsion device provided in an embodiment of the present invention;

[0026] Figure 5 A cross-sectional view of a housing with internal limiting protrusions provided in an embodiment of the present invention;

[0027] Figure 6 A top view of a housing provided in accordance with an embodiment of the present invention;

[0028] Figure 7 A three-dimensional diagram of a switching module provided in an embodiment of the present invention;

[0029] Figure 8 A three-dimensional diagram of a retaining spring provided in an embodiment of the present invention;

[0030] Figure 9 A three-dimensional diagram of a limiting device provided in an embodiment of the present invention;

[0031] Figure 10 A top view of a rubber ring provided in an embodiment of the present invention.

[0032] The reference numerals in the figures are:

[0033] 1. Direction-changing device; 11. Input member; 111. Positioning slot; 12. Output member; 121. Connecting part; 2. Propulsion device; 21. Bolt; 211. Retaining ring slot; 212. Safety slot; 22. Nut; 23. Connecting head; 24. Brim; 3. Housing; 31. First hole; 32. Second hole; 33. Nut slot; 34. Limiting hole; 35. Rubber ring slot; 36. First shell; 37. Second shell; 38. Limiting protrusion; 4. Adapter module; 41. Multi-way connector; 42. Protective shell; 5. Retaining ring; 6. Spring; 7. Limiting device; 71. Limiting part; 711. Adjustment port; 72. Limiting foot; 8. Rubber ring. DETAILED DESCRIPTION

[0034] To facilitate understanding by those skilled in the art, the present invention will be described in further detail below with reference to specific embodiments.

[0035] See Figures 1 to 10 The present invention discloses a connection module, comprising: a housing 3, a direction-changing device 1, a propulsion device 2, and a transfer module 4. The housing 3 is provided with a first hole 31 and a second hole 32. The first hole 31 is vertically connected to the second hole 32. A nut groove 33 is provided near the opening of the first hole 31. The direction-changing device 1 comprises an input member 11 and an output member 12. The input member 11 and the output member 12 are respectively arranged in the second hole 32 and the first hole 31. The input member 11 is connected to the output member 12, and the horizontal rotation of the input member 11 drives the output member 12 to rotate vertically. The propulsion device 2 is arranged in the first hole. 31. The propulsion device 2 includes a bolt 21 and a nut 22. The nut 22 is arranged in the nut groove 33. The bolt 21 includes a threaded portion and a smooth portion. One end of the threaded portion is threadedly connected to the nut 22, and one end of the smooth portion is radially fixed and axially slidably connected to the output member 12. The smooth portion is provided with a retaining spring groove 211, and a retaining spring 5 is provided in the retaining spring groove 211. A spring 6 is provided between the retaining spring 5 and the nut 22, and the spring 6 is provided on the bolt 21; the adapter module 4 is arranged outside the housing 3, includes a thread that matches the bolt 21, and is threadedly connected to the bolt 21 after the bolt 21 is pushed.

[0036] In one implementation of this embodiment, the connection module is installed in the connection pipe.

[0037] In one implementation of this embodiment, the input member 11 is a driving bevel gear, and a positioning groove 111 is provided at the input end of the driving bevel gear; the output member 12 is a driven bevel gear, and a connecting portion 121 is provided at the output end of the driven bevel gear. The connecting portion 121 is connected to one end of the smooth portion of the bolt 21, and the driven bevel gear is meshed with the driving bevel gear.

[0038] In one implementation of this embodiment, the positioning groove 111 is in a straight or cross shape.

[0039] In one implementation of this embodiment, the input member 11 and the output member 12 may also be other steering transmission shafts capable of achieving a 90° turn.

[0040] In one implementation of this embodiment, a connector 23 is provided at one end of the smooth portion of the bolt 21 , and the connector 23 is connected to the connecting portion 121 .

[0041] In one implementation of this embodiment, the connecting head 23 is in the shape of a regular hexagonal prism, the connecting portion 121 is in the shape of a column, the connecting portion 121 is provided with a regular hexagonal blind hole at the end away from the driven bevel gear, the connecting head 23 is arranged in the regular hexagonal blind hole, and slides axially along the regular hexagonal blind hole; or the connecting head 23 is in the shape of a regular quadrangular prism, the connecting portion 121 is in the shape of a column, the connecting portion 121 is provided with a square blind hole at the end away from the driven bevel gear, the connecting head 23 is arranged in the square blind hole, and slides axially along the square blind hole.

[0042] In one implementation of this embodiment, the connecting head 23 is in the shape of a column, a regular hexagonal blind hole is provided on the end face of the connecting head 23, the connecting portion 121 is in the shape of a regular hexagonal prism, the connecting portion 121 is arranged in the regular hexagonal blind hole, and slides axially along the regular hexagonal blind hole; or the connecting head 23 is in the shape of a column, a square blind hole is provided on the end face of the connecting head 23, the connecting portion 121 is in the shape of a regular quadrangular prism, the connecting portion 121 is arranged in the square blind hole, and slides axially along the square blind hole.

[0043] One implementation of this embodiment further includes a limiting device 7, which is installed on the housing 3. The limiting device 7 includes a limiting portion 71 and a limiting foot 72. The limiting portion 71 is connected to the limiting foot 72. The limiting portion 71 is provided with an adjustment port 711, which is opposite to the input end of the input member 11.

[0044] In one implementation of this embodiment, the limiting portion 71 is configured to have a horizontal upper surface.

[0045] In one implementation of this embodiment, the limiting portion 71 is configured as a structure with a certain curvature on the upper surface.

[0046] In one implementation of this embodiment, the shell 3 is assembled by a first shell 36 and a second shell 37. The shell 3 also has a limiting hole 34, which is used to set a limiting foot 72. A rubber ring groove 35 is provided in the limiting hole 34, and a rubber ring 8 is provided in the rubber ring groove 35.

[0047] In one implementation of this embodiment, the cross section of the housing 3 is elliptical.

[0048] Wherein, corresponding to the cross section of the outer shell 3, the inner cross section of the connecting pipe is also set to be an ellipse.

[0049] In one implementation of this embodiment, a brim 24 is provided at one end of the smooth portion of the bolt, and a limiting protrusion 38 is provided in the first hole near the output member, and the limiting protrusion 38 is used to resist the brim 24 of the bolt.

[0050] In one implementation of this embodiment, a safety groove 212 is provided on the end surface of the threaded portion of the bolt 21 , and the safety groove 212 is a hexagonal blind hole or a square blind hole.

[0051] In one implementation of this embodiment, the adapter module 4 includes a multi-way connector 41 and a protective shell 42. The multi-way connector 41 is provided with an internal thread adapted to the bolt 21. The multi-way connector 41 is disposed in the protective shell 42. The shape of the protective shell 42 is adapted to the connection module.

[0052] The present invention also provides an embodiment, a modular assembled furniture having the above connection modules.

[0053] Working principle:

[0054] See Figures 1 to 10 During the operation of a connection module disclosed in the present invention, the connection module is first installed into the connection tube so that the second hole 32 is aligned with the opening on the connection tube, and the limiting foot 72 of the limiting device 7 is inserted into the limiting hole 34. When the limiting foot 72 passes through the rubber ring 8 in the rubber ring groove 35, the rubber ring 8 and the limiting foot 72 are interference fit, firmly clamping the limiting device 7, thereby fixing the limiting device 7 on the housing 3. At this time, the limiting portion 71 of the limiting device 7 is higher than the connection module and is just clamped in the opening of the connection tube, thereby fixing the connection module to the connection tube. At this time, the adjustment port 711 of the limiting device 7 is facing the input end of the input member 11.

[0055] Then place a suitable screwdriver in the positioning slot 111 at the adjustment port 711, and rotate the screwdriver to rotate the active bevel gear horizontally, thereby driving the driven bevel gear to rotate vertically; the driven bevel gear is radially fixed and axially slidably connected to the bolt 21, so the vertical rotation of the driven bevel gear drives the bolt 21 to rotate, and the nut 22 is limited in the nut slot 33 and does not rotate, so the bolt 21 and the nut 22 cooperate with each other, so that the bolt 21 moves toward the adapter module 4. Since the retaining spring is fixed to the bolt, the retaining spring moves forward with the bolt, causing the spring 6 to be compressed. When the threaded portion of the bolt 21 disengages from the nut 22, the spring 6 rebounds, driving the bolt 21 and the adapter module 4 connected to the bolt 21 to move toward one end of the output member 12, so that the threaded portion of the bolt 21 always fits with the thread of the nut 22, which is convenient for disassembly. At this time, the adapter module 4 allows the bolt 21 to continue to move forward, and the threaded portion of the bolt 21 tends to disengage from the nut 22. The smooth portion of the bolt 21 passes through the nut 22, and the spring 6 rebounds, driving the bolt 21 and the adapter module 4 connected to the bolt 21 to move toward one end of the output member 12, so that the adapter module 4 fits more tightly with one end of the connecting pipe.

[0056] In the process of advancing the bolt 21, the brim 24 advances with the bolt 21 until it contacts the limiting protrusion 8 to limit the advancing distance of the bolt 21, thereby preventing the connecting head 23 of the bolt 21 from falling out of the connecting part 121 of the output component, causing the propulsion device 2 to fail.

[0057] When the propulsion device 2 fails, a suitable screwdriver is placed in the safety slot 212 of the bolt 21 and the screwdriver is rotated to drive the bolt 21 to rotate, so that the bolt 21 is withdrawn from the adapter module 4, thereby disassembling the connection module.

[0058] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. A connection module, characterized in that: include: The shell, the changing device, the propulsion device and the adapter module, the shell is provided with a first hole and a second hole, the first hole is vertically connected to the second hole, and the first hole is provided with a nut groove near the hole mouth; the changing device includes an input member and an output member, the input member and the output member are respectively arranged in the second hole and the first hole, the input member is connected to the output member, and the horizontal rotation of the input member drives the output member to rotate vertically; the propulsion device is arranged in the first hole, the propulsion device includes a bolt and a nut, the nut is arranged in the nut groove, the bolt includes a threaded portion and a smooth portion, the threaded portion is threadedly connected to the nut, the smooth portion is radially fixed and axially slidably connected to the output member, the smooth portion is provided with a retaining ring groove, a retaining ring is provided in the retaining ring groove, a spring is provided between the retaining ring and the nut, and the spring is arranged on the bolt; the adapter module is arranged outside the shell, includes a thread that matches the bolt, and is threadedly connected to the bolt after the bolt is pushed; The end surface of the threaded portion of the bolt is provided with a safety groove; It also includes a limiting device, which is installed on the shell. The limiting device includes a limiting part and a limiting foot. The limiting part is connected to the limiting foot. The limiting part is provided with an adjustment port, and the adjustment port is directly opposite to the input end of the input member.

2. A connection module according to claim 1, characterized in that: The input member is a driving bevel gear, and a positioning groove is provided at the input end of the driving bevel gear; the output member is a driven bevel gear, and a connecting portion is provided at the output end of the driven bevel gear, and the connecting portion is connected to one end of the smooth portion of the bolt, and the driven bevel gear is meshed with the driving bevel gear.

3. A connection module according to claim 2, characterized in that: One end of the smooth portion of the bolt is provided with a connecting head, and the connecting head is connected to the connecting portion.

4. The connection module according to claim 1, characterized in that: The housing is further provided with a limiting hole, the limiting hole is used to set the limiting foot, a rubber ring groove is provided in the limiting hole, and a rubber ring is provided in the rubber ring groove.

5. The connection module according to claim 1, characterized in that: The shell is assembled from a first shell and a second shell, and the cross section of the shell is elliptical.

6. The connection module according to claim 1, characterized in that: A brim is provided at one end of the smooth portion of the bolt, and a limiting protrusion is provided in the first hole near the output member, and the limiting protrusion is used to support the brim of the bolt.

7. The connection module according to claim 1, characterized in that: The safety slot is a hexagonal blind hole or a square blind hole.

8. The connection module according to claim 1, characterized in that: The adapter module includes a multi-way connector and a protective shell. The multi-way connector is provided with internal threads adapted to the bolts. The multi-way connector is arranged in the protective shell. The shape of the protective shell is adapted to the connection module.

9. A modular assembled furniture, characterized in that: A connection module according to any one of claims 1 to 8.

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