A connecting module, a connecting unit and modular assembled furniture

Abstract

The application discloses a connecting module, a connecting unit and modular assembled furniture. The connecting module comprises a shell and a propelling structure. The propelling structure is arranged in a first hole of the shell. The propelling structure comprises a screw rod and a screw thread cooperating element. The screw thread cooperating element is elastic. A limiting installation channel is arranged in a hole channel of the first hole. The screw thread cooperating element is arranged in the limiting installation channel. The screw thread cooperating element is used for cooperating with a screw thread groove of the screw rod, so that the screw rod is screwed into or out of the shell through the screw thread cooperating element. The connecting unit and the modular assembled furniture each comprise the connecting module. When the screw rod is stuck with the screw thread cooperating element, the screw rod is continuously screwed. Under the action of elasticity, the screw thread cooperating element jumps from a front screw thread groove to a rear screw thread groove of the screw rod. When a rotation axis of the screw rod is slightly offset from a theoretical rotation axis, the elastic screw thread cooperating element can adapt to the offset of the screw rod, so that the rotation sticking phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of modular assembly device technology, and in particular to a connection module, a connection unit, and modular assembled furniture. Background Technology

[0002] Existing frame boxes, brackets, or other support structures typically use methods such as plug-in, welding, adhesive, or threaded connections to connect adapters and connecting pipes. Among these, threaded connections are favored due to their strong connection and ease of installation and disassembly. In practical applications, most frame boxes, brackets, or support structures use threaded connections by directly tapping or threading the connecting end of the connecting pipe, and similarly threading or tapping the connecting end of the adapter. During installation, the connection between the connecting pipe and the adapter is achieved by rotating the entire connecting pipe or adapter along its axis. Patent application number 2023108418607 proposes a method that uses two bevel gears before the propulsion structure to convert horizontal rotational motion into vertical rotational motion, causing the screw to helically move horizontally along its axis, achieving a fastening effect without rotating the entire connecting pipe.

[0003] The screw, through the cooperation of the nut, makes a helical motion along an axis that coincides with the axis of the nut (the theoretical axis of rotation) to achieve screwing in or out. However, in actual use, the screw and nut are prone to jamming, which hinders the assembly and disassembly of the connecting unit. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a connection module, a connection unit, and modular assembled furniture.

[0005] The technical solution adopted by this utility model is as follows:

[0006] This application provides a connection module, including a housing and a push structure. A first hole is formed inside the housing, and the push structure is disposed in the first hole. The push structure includes a screw and a helical engagement element, and the helical engagement element is elastic.

[0007] The first hole has a limiting installation channel, and the helical fitting element is disposed in the limiting installation channel. The helical fitting element is used to engage with the thread groove of the screw, so that the screw can be screwed in or out relative to the outer shell through the helical fitting element.

[0008] By incorporating a flexible helical fitting element, when the screw gets stuck with the element, continued screwing will cause the element to jump from one thread groove to the next, preventing it from jamming like existing nuts. Simultaneously, the flexible helical fitting element also ensures that the screw's rotation axis is not absolutely restricted by it. When the screw's rotation axis slightly deviates from the theoretical axis, the flexible helical fitting element adapts to the deviation, preventing rotational jamming.

[0009] Furthermore, the spiral fitting element is a U-shaped structure with an opening.

[0010] The open structure gives the screw-fit element flexibility. In practical applications, the screw-fit element can also be a flexible but closed structure.

[0011] Furthermore, the helical fitting element has a fitting portion and a closing portion, the size of which is smaller than the outer diameter of the screw;

[0012] The mating part is used to engage with the screw in the thread groove of the screw so that the screw can be screwed in or out.

[0013] The fact that the size of the constricted portion is smaller than the outer diameter of the screw ensures that the helical mating element does not disengage from the screw.

[0014] Furthermore, there is a gap between the groove wall of the limiting installation channel and the helical mating element, the gap being used to provide space for deformation of the helical mating element.

[0015] Furthermore, the spiral fitting element is a steel wire, and the outer diameter of the steel wire is adapted to the width of the thread groove.

[0016] Furthermore, the limiting installation channel forms two through holes in the outer shell, with the two through holes located on both sides of the first hole.

[0017] Furthermore, the outer shell includes an upper shell and a lower shell that are fastened together. The perforation is located on the upper shell. The outer side of the upper shell has a connecting groove. The two ends of the connecting groove communicate with the perforation to form a U-shaped groove structure.

[0018] The limiting installation channel has an installation hole formed in the lower shell.

[0019] Furthermore, the first hole is arranged along the axial direction of the outer casing, and the outer casing also has a second hole, which is perpendicularly connected to the first hole;

[0020] It also includes a reversing structure, which includes an input component and an output component. The input component and the output component are located in the first hole and the second hole, respectively. The input component and the output component are connected, and when the input component is rotated in the horizontal direction, it drives the output component to rotate in the vertical direction.

[0021] The output component is axially slidably connected to the screw and rotates radially synchronously.

[0022] This application also provides a connection unit, including a converter module and at least one connection module, wherein the connection module is one of the connection modules described above.

[0023] The adapter module has multiple connection holes, each with an internal thread adapted to the screw, and the connection holes are used for threaded connection with the screw.

[0024] The outer casing has two protrusions at the connection end that connects to the adapter module. The two protrusions are located on both sides of the screw and are arranged in a "I" shape with the screw.

[0025] The outer wall surface of the adapter module is provided with a sliding groove, which is arranged radially along the connection hole and passes through the connection hole;

[0026] When the screw is threaded into the connecting hole, the protrusion is located in the groove;

[0027] When the screw is not threaded into the connecting hole, the protrusion is located in the groove, or is dislodged from the adapter module through the groove.

[0028] This application also provides a modular assembled furniture, including multiple connecting units, connecting pipes, and connecting plates;

[0029] The connection unit is one of the connection units described above;

[0030] Both ends of the connecting tube are respectively fitted onto the outer shell of the adjacent connecting unit. The connecting tube is provided with an operating hole, which is provided corresponding to the second hole of the outer shell.

[0031] The connecting plate is laid on the surface of the connecting pipe.

[0032] The beneficial effects of this utility model are:

[0033] (1) By setting an elastic helical fitting element, when the screw is stuck with the helical fitting element, if the screw is continued to be turned, under the action of elasticity, the helical fitting element will jump from the front thread groove to the back thread groove of the screw, and will not get stuck like the existing nut; at the same time, the elastic helical fitting element also makes the rotation axis of the screw not absolutely restricted by the helical fitting element. When the rotation axis of the screw is slightly deviated from the theoretical rotation axis, the elastic helical fitting element can adapt to the deviation of the screw and avoid the phenomenon of rotation jamming.

[0034] (2) By setting an “I”-shaped groove on the adapter module and setting an “I”-shaped protrusion on the outer shell of the connecting module, when assembling the connecting unit, the outer shell is first slid into the groove of the adapter module through the protrusion, which facilitates the stable and accurate docking of the connecting hole and the screw. When disassembling the connecting unit, the protrusion is located in the groove and will not directly detach from the adapter module, thus ensuring good safety. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the axial structure of the connecting module in an embodiment of this utility model (with the top cover hidden).

[0036] Figure 2 This is a structural schematic diagram of the connection module in the front view of an embodiment of this utility model;

[0037] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0038] Figure 4 This is a schematic diagram of the axial structure of the helical mating element according to an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the axial structure of the connecting unit according to an embodiment of the present invention;

[0040] Figure 6 This is a structural schematic diagram of the modular assembled furniture from the front view of an embodiment of this utility model;

[0041] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure of BB.

[0042] The labels for the attached figures are as follows:

[0043] 100. Connecting module; 10. Housing; 101. First hole; 102. Limiting installation channel; 103. Through hole; 104. Connecting groove; 105. Mounting hole; 106. Second hole; 110. Upper shell; 120. Lower shell; 130. Protrusion; 20. Pushing structure; 210. Screw; 211. Thread groove; 212. Internal hexagon blind hole; 220. Helical mating element; 221. Mating part; 222. Closing part; 30. Directional change structure; 310. Input component; 320. Output component; 200. Adapter module; 201. Connecting hole; 202. Slide groove; 300. Connecting pipe. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the accompanying drawings.

[0045] like Figures 1-7 As shown, this application provides a connection module, including a housing 10 and a push structure 20. A first hole 101 is formed in the housing 10, and the push structure 20 is disposed in the first hole 101. The push structure 20 includes a screw 210 and a helical engagement element 220, and the helical engagement element 220 is elastic.

[0046] The first hole 101 has a limiting installation channel 102. The screw fitting element 220 is set in the limiting installation channel 102. The screw fitting element 220 is used to cooperate with the thread groove 211 of the screw 210, so that the screw 210 is screwed in or out relative to the outer shell 10 through the screw fitting element 220.

[0047] By setting an elastic helical engagement element 220, when the screw 210 is stuck with the helical engagement element 220, if the screw 210 is continued to be turned, under the elastic action of the helical engagement element 220, the helical engagement element 220 will jump from the previous thread groove 211 to the next thread groove 211 of the screw 210, and will not get stuck like existing nuts. At the same time, the elastic helical engagement element 220 can also make the rotation axis of the screw 210 not absolutely restricted by the helical engagement element 220. When the rotation axis of the screw 210 deviates slightly from the theoretical rotation axis, the elastic helical engagement element 220 can adapt to the deviation of the screw 210 and avoid the occurrence of rotational jamming.

[0048] like Figure 4 As shown, in this embodiment, the spiral fitting element 220 is a U-shaped structure with an opening.

[0049] The open structure makes the screw-fit element 220 elastic, allowing it to expand outward or move forward and backward. In actual use, the screw-fit element 220 can also be an elastic but not open structure.

[0050] In this embodiment, the screw-fitting element 220 has a fitting portion 221 and a closing portion 222, the size of which is smaller than the outer diameter of the screw 210;

[0051] The mating part 221 is used to engage with the screw 210 in the thread groove 211 of the screw 210 so that the screw 210 can be screwed in or out.

[0052] The fact that the size of the constriction portion 222 is smaller than the outer diameter of the screw 210 ensures that the screw-fit element 220 does not disengage from the screw 210.

[0053] In this embodiment, there is a gap between the groove wall of the limiting installation channel 102 and the screw fitting element 220, and the gap is used to provide space for the screw fitting element 220 to deform.

[0054] In actual use, the gap should be adapted to the size of the screw-fit element 220, and should not be too large or too small.

[0055] In this embodiment, the helical fitting element 220 is a U-shaped steel wire, and the outer diameter of the steel wire is adapted to the width of the thread groove 211.

[0056] In actual use, the screw-fit element 220 is also a nut with an opening on the side wall, and the nut has 1 to 2 effective threads.

[0057] like Figure 3 As shown, in this embodiment, the limiting installation channel 102 forms two through holes 103 in the outer shell 10, and the two through holes 103 are located on both sides of the first hole 101.

[0058] The perforation 103 is used for the two ends of the U-shaped spiral fitting element 220 with openings to pass through, so that the spiral fitting element 220 is engaged on the limiting installation channel 102.

[0059] like Figure 3 and Figure 7 As shown, in this embodiment, the outer shell 10 includes an upper shell 110 and a lower shell 120 that are fastened together. A perforation 103 is located on the upper shell 110. The outer side of the upper shell 110 has a connecting groove 104. The two ends of the connecting groove 104 are connected to the perforation 103 and form a U-shaped groove structure.

[0060] The limiting installation channel 102 has an installation hole 105 formed in the lower shell 120.

[0061] In this embodiment, the mounting hole 105 is a blind hole.

[0062] In this embodiment, the upper shell 110 and the lower shell 120 are fixed together by ultrasonic welding.

[0063] In other embodiments, it can also be fixed by snap-fit ​​or adhesive.

[0064] In actual use, the U-shaped slot structure (connecting slot 104) of the upper shell 110 is used to install the middle crossbar of the U-shaped helical fitting element 220. The mounting holes 105 of the lower shell 120 are used to install the two open ends of the U-shaped helical fitting element 220.

[0065] In this embodiment, the first hole 101 is arranged along the axial direction of the outer shell 10, and the outer shell 10 is also provided with a second hole 106, which is perpendicularly connected to the first hole 101.

[0066] It also includes a reversing structure 30, which includes an input component 310 and an output component 320. The input component 310 and the output component 320 are located in the first hole 101 and the second hole 106, respectively. The input component 310 and the output component 320 are connected, and when the input component 310 is rotated in the horizontal direction, it drives the output component 320 to rotate in the vertical direction.

[0067] The output component 320 is axially slidably connected to the screw 210 and rotates radially synchronously.

[0068] In this embodiment, the input component 310 is a driving bevel gear, and the output component 320 is a driven bevel gear. The output end of the driven bevel gear is provided with a regular hexagonal prism. The end of the screw 210 that cooperates with the output end of the driven bevel gear has a regular hexagonal blind hole adapted to the regular hexagonal prism. The regular hexagonal prism is set in the regular hexagonal blind hole, slides along the regular hexagonal blind hole, and drives the screw 210 to rotate.

[0069] In this embodiment, the input component 310 further includes a positioning rod connected to the driving bevel gear, and the positioning rod is disposed on the side of the driving bevel gear close to the axis of the driven bevel gear;

[0070] The outer casing 10 has a third hole inside, and the positioning rod is located inside the third hole.

[0071] By setting a third hole and an input component with a positioning rod, the positioning rod cooperates with the third hole to share part of the torque, so that the meshing main and driven gears can withstand greater torque. Under the premise of meeting the same torque requirements, the reversing structure provided by this application can have a smaller size, thereby reducing the overall structural size of the connecting unit and enabling it to be used in more applications.

[0072] like Figure 5 As shown, this application also provides a connection unit, including a converter module 200 and at least one connection module 100, wherein the connection module 100 is one of the connection modules described above;

[0073] The adapter module 200 has multiple connection holes 201, and the connection holes 201 are provided with internal threads adapted to the screw 210. The connection holes 201 are used for threaded connection with the screw 210.

[0074] The housing 10 has two protrusions 130 at the connection end that connects to the adapter module 200. The two protrusions 130 are located on both sides of the screw 210 and are arranged in a "I" shape with the screw 210.

[0075] The outer wall surface of the adapter module 200 is provided with a sliding groove 202, which is arranged radially along the connection hole 201 and passes through the connection hole 201;

[0076] When the screw 210 is threadedly connected to the connecting hole 201, the protrusion 130 is located in the groove 202;

[0077] When the screw 210 is not threaded into the connecting hole 201, the protrusion 130 is located in the slide groove 202, or is dislodged from the adapter module 200 through the slide groove 202.

[0078] When assembling the connecting unit, the outer shell 10 is first slid into the slide groove 202 of the adapter module 200 through the protrusion 130, which facilitates the stable and accurate docking of the connecting hole 201 and the screw 210. When disassembling the connecting unit, the protrusion 130 is located in the slide groove 202 and will not directly detach from the adapter module 200, thus ensuring good safety.

[0079] The opposing connecting holes 201 are coaxially arranged. The end of the screw 210 connected to the adapter module 200 has an internal hexagon blind hole 212. The screw 210 can be tightened or unscrewed through the opposing connecting holes 201.

[0080] In this embodiment, the adapter module 200 has a cubic structure, and each surface of the cube is provided with a cross-shaped groove 202.

[0081] This application also provides a modular assembled furniture, including multiple connecting units (only one is shown in the figure), a connecting pipe 300, and a connecting plate (not shown in the figure).

[0082] The connecting unit is one of the connecting units described above;

[0083] The two ends of the connecting pipe 300 are respectively sleeved on the outer shell 10 of the adjacent connecting unit and fixed to the outer shell 10. The connecting pipe 300 is provided with an operation hole, which is provided in correspondence with the second hole 106 of the outer shell 10.

[0084] The connecting plate is erected or fixed on the surface of the connecting pipe 300.

[0085] In this embodiment, a locking connector is also included. The outer shell 10 is provided with a first mounting surface and a first locking hole. The connecting tube 300 is provided with a second mounting surface that complements the first mounting surface and a second locking hole. This allows the locking connector to be installed simply by aligning the first locking hole and the second locking hole axially after the connecting tube 300 is coaxially fitted onto the outer shell 10 during assembly. This makes assembly convenient and labor-saving, improving the assembly experience.

[0086] In this embodiment, the locking connector is a knurled pin.

[0087] In this embodiment, the outer cross-sectional shape of the outer casing 10 is square, and the two opposite sides of the square outer casing form the aforementioned first mounting surface;

[0088] The connecting pipe 300 is a square tube, and the two opposite sides inside the square tube form the aforementioned second mounting surface.

[0089] Square tube connectors and square outer casings make assembly easier.

[0090] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A connecting module, comprising a housing and a propulsion structure, wherein a first hole is formed within the housing, and the propulsion structure is disposed within the first hole, characterized in that, The propulsion structure includes a screw and a helical mating element, the helical mating element being elastic; The first hole has a limiting installation channel, and the helical fitting element is disposed in the limiting installation channel. The helical fitting element is used to engage with the thread groove of the screw, so that the screw can be screwed in or out relative to the outer shell through the helical fitting element.

2. The connection module as described in claim 1, characterized in that, The spiral fitting element is a U-shaped structure with an opening.

3. A connection module as described in claim 1, characterized in that, The helical fitting element has a fitting part and a closing part, the size of which is smaller than the outer diameter of the screw. The mating part is used to engage with the screw in the thread groove of the screw so that the screw can be screwed in or out.

4. A connection module as described in claim 1, characterized in that, There is a gap between the groove wall of the limiting installation channel and the helical mating element, and the gap is used to provide space for the helical mating element to deform.

5. A connection module as described in claim 1, characterized in that, The spiral fitting element is a steel wire, and the outer diameter of the steel wire is adapted to the width of the thread groove.

6. A connection module as described in claim 1, characterized in that, The limiting installation channel forms two through holes in the outer shell, with the two through holes located on both sides of the first hole.

7. A connection module as described in claim 6, characterized in that, The outer shell includes an upper shell and a lower shell that are fastened together. The perforation is located on the upper shell. The outer side of the upper shell has a connecting groove. The two ends of the connecting groove communicate with the perforation to form a U-shaped groove structure. The limiting installation channel has an installation hole formed in the lower shell.

8. A connection module as described in claim 1, characterized in that, The first hole is provided along the axial direction of the outer shell, and the outer shell is also provided with a second hole, which is perpendicularly connected to the first hole; It also includes a reversing structure, which includes an input component and an output component. The input component and the output component are located in the first hole and the second hole, respectively. The input component and the output component are connected, and when the input component is rotated in the horizontal direction, it drives the output component to rotate in the vertical direction. The output component is axially slidably connected to the screw and rotates radially synchronously.

9. A connecting unit, characterized in that, It includes an adapter module and at least one connection module, wherein the connection module is a connection module as described in any one of claims 1 to 8; The adapter module has multiple connection holes, each with an internal thread adapted to the screw, and the connection holes are used for threaded connection with the screw. The outer casing has two protrusions at the connection end that connects to the adapter module. The two protrusions are located on both sides of the screw and are arranged in a "I" shape with the screw. The outer wall surface of the adapter module is provided with a sliding groove, which is arranged radially along the connection hole and passes through the connection hole; When the screw is threaded into the connecting hole, the protrusion is located in the groove; When the screw is not threaded into the connecting hole, the protrusion is located in the groove, or is dislodged from the adapter module through the groove.

10. A modular assembled furniture, characterized in that, Includes multiple connection units, connection pipes, and connection plates; The connecting unit is the connecting unit according to claim 9; Both ends of the connecting tube are respectively fitted onto the outer shell of the adjacent connecting unit. The connecting tube is provided with an operating hole, which is provided corresponding to the second hole of the outer shell. The connecting plate is laid on the surface of the connecting pipe.

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