CN117967661B - Detachable sofa iron frame connecting structure - Google Patents
Detachable sofa iron frame connecting structure Download PDFInfo
- Publication number
- CN117967661B CN117967661B CN202410364248.XA CN202410364248A CN117967661B CN 117967661 B CN117967661 B CN 117967661B CN 202410364248 A CN202410364248 A CN 202410364248A CN 117967661 B CN117967661 B CN 117967661B
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- Prior art keywords
- wedge block
- piece
- shell
- long bolt
- far away
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the technical field of production and manufacturing of sofa components, in particular to a detachable assembled sofa iron frame connecting structure which is used for assembling a cross rod and a support frame into a sofa iron frame, wherein a connecting piece is fixedly arranged at the end part of the cross rod, a shell is fixedly arranged on the side wall of the connecting piece, a long bolt is penetrated and slidingly connected in the shell, the end part of the long bolt is in threaded connection with the side wall of the support frame, a first wedge block is movably connected in the shell, one side of the first wedge block, which is far away from the long bolt, is attached with a second wedge block fixedly arranged in the inner cavity of the shell, one side of the first wedge block, which is far away from the second wedge block, is provided with a contact surface which is attached with the peripheral surface of the long bolt and is vertical, one side of the first wedge block, which is close to the second wedge block, is gradually close to the long bolt, is provided with a bevel edge which is parallel to the bevel, and the direction of the first wedge block when the first wedge block moves vertically downwards is identical with the screwing direction of the long bolt.
Description
Technical Field
The invention relates to the technical field of production and manufacturing of sofa components, in particular to a detachable assembled sofa iron frame connecting structure.
Background
The sofa is common furniture in people's daily life, and when producing the sofa, the support frame of sofa both sides needs to be connected through supporting the horizontal pole, and the support horizontal pole not only plays the effect of connecting both sides support frame, still plays the effect of supporting. At present, the support cross rod is connected with the support frames on two sides by virtue of bolts, when the sofa is used, the support cross rod bears larger pressure, after the sofa is used for a long time, the bolts are easy to loosen, the stability of the connection is poor, the whole sofa iron frame starts to loosen, and the creak sound can be generated, so that the use experience is influenced;
The publication number is: in order to solve the technical problem, the patent of CN210433164U discloses an improved fixing device of a sofa iron frame supporting cross rod, a fixing protrusion is arranged on a fixing plate, a corresponding fixing perforation is arranged on a surface to be fixed, when the fixing plate is fixed on the surface to be fixed, a fixing screw is locked, the fixing protrusion is clamped in the fixing perforation, when the sofa is used, the fixing screw is pressed down by pressure parallel to the fixing plate, the fixing screw is stressed by torsion, the fixing protrusion is stressed by the shearing force exerted by the edge of the fixing perforation, at the moment, a main body playing a role in fixing is changed into the fixing protrusion from the previous fixing screw, and compared with the fixing screw which is easily loosened by torsion, the shearing force stressed by the fixing protrusion is difficult to cause the fixing protrusion to be sheared, so that the fixing effect can be better achieved;
In the technical scheme, although the fixing protrusion is used as a main body for fixing, after the screw is loosened by torsion, the clamping force of the screw after the fixing protrusion is pressed into the fixing perforation is naturally reduced, so that the fixing protrusion is loosened in the fixing perforation, and only limited fixing optimization function is achieved; therefore, there is a need in the market for a connection structure that the bolts will not loosen after the sofa iron frame is assembled.
The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to design a connecting structure for assembling a cross rod and a support frame in a sofa iron frame, and the connecting structure is not easy to loosen after long-term use, and can still maintain the stability of connection so as to solve the defects in the technology.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a can dismantle sofa iron stand connection structure of equipment, be used for assembling horizontal pole and support frame into sofa iron stand, horizontal pole tip fixed mounting has the connection piece, connection piece lateral wall fixed mounting has the shell, the inside long bolt that runs through of shell and sliding connection, long bolt tip and support frame lateral wall threaded connection, swing joint has first voussoir in the shell, first voussoir is kept away from long bolt one side laminating and is equipped with the second voussoir at shell inner chamber fixed mounting, first voussoir is kept away from second voussoir one side and is equipped with the contact surface that is laminated and perpendicular with long bolt periphery, long bolt and contact surface laminating periphery have a plurality of tooth's socket that the annular array distributes, a plurality of tooth's socket makes long bolt periphery form the ratchet, contact surface has the rack that cooperates with the ratchet, the rack moves down and can drive the long bolt of ratchet screwing, first voussoir one side that is close to second voussoir top-down has the inclined plane that is close to the long bolt gradually, second is close to first voussoir one side has the hypotenuse that is parallel with the inclined plane, the orientation when first perpendicular downward movement is with the long bolt is screwed down the same with long bolt;
the gravity when the user sits down is transferred to the connecting piece through the cross rod, the connecting piece pushes the first wedge block to descend in the shell when being deformed downwards, the first wedge block moves towards the long bolt when descending along the inclined edge of the second wedge block, and gradually increasing contact stress is applied to the outer peripheral surface of the long bolt after contact to form downward friction force, and the downward friction force drives the long bolt to be screwed.
Preferably, the second wedge block is not fixedly connected with the inner cavity of the shell, the second wedge block is transversely and slidably connected in the inner cavity of the shell, a spring is fixedly arranged between one side, away from the first wedge block, of the second wedge block and the inner wall of the shell, and the spring exerts elastic force on the second wedge block, which pushes the second wedge block to the first wedge block.
Preferably, the connecting piece comprises a first piece fixedly connected with the end part of the cross rod, a second piece horizontally and fixedly connected with the bottom of the first piece, and a third piece fixedly connected with one side of the second piece far away from the first piece, wherein the first piece, the second piece and the third piece are integrally formed, the shell is fixedly connected with the side wall of the third piece, and one side of the bottom surface of the second piece far away from the third piece is attached to the top surface of the first wedge block.
Preferably, the joint of the second bottom surface and the first wedge block is provided with an arc-shaped bulge, the top surface of the first wedge block is provided with an arc-shaped groove matched with the arc-shaped bulge, and the arc-shaped bulge is positioned in the arc-shaped groove.
Preferably, a separating rod is fixedly arranged on one side, far away from the spring, of the first wedge block, and a sliding groove which is in sliding connection with the separating rod is formed on one side, far away from the spring, of the shell;
The separating rod is pushed into the shell to drive the first wedge block to contact with the peripheral surface of the long bolt, so that the long bolt is conveniently unscrewed.
Preferably, the upward movement of the rack drives the spring to compress through the first wedge block and the second wedge block, and the sliding on the ratchet surface does not drive the ratchet to rotate;
By utilizing the cooperation between the rack and the ratchet, when the first wedge block drives the rack to descend, the ratchet can be matched to promote the long bolt to have a screwing trend, and when the first wedge block ascends, the long bolt can not be driven to unscrew by slipping.
Preferably, the outer peripheral surface of the long bolt, which is attached to the contact surface, and the contact surface are provided with anti-skid lines;
The friction force between the long bolt and the contact surface is increased by adopting the anti-skid pattern instead of the matching of the ratchet wheel and the rack, so that the long bolt has a rotating trend more easily when the contact surface descends.
Preferably, a limiting block is fixedly arranged on one side, far away from the shell, of the third piece, and a limiting groove matched with the limiting block in shape is formed in the surface of the supporting frame;
The limiting grooves are preferably two, are symmetrically distributed on two sides of the long bolt, and are used for preventing the third piece from rotating around the long bolt after being mounted on the support frame after being clamped into the limiting grooves.
In the technical scheme, the invention has the technical effects and advantages that:
According to the connecting structure, the first wedge block is driven to apply a tightening acting force to the long bolt through the gravity applied to the cross rod when a consumer sits on the sofa, so that the problem that after the sofa is used for a long time, the bolt is easy to loosen, the stability of connection is poor, the whole iron frame of the sofa starts to loosen, the creak sound is generated, and the using experience is influenced is solved;
when no consumer sits on the sofa and applies gravity, the rack on the first wedge block can prevent the ratchet wheel on the peripheral surface of the long bolt from rotating reversely, so that acting force when the long bolt is screwed up is ensured, and looseness between the cross rod and the support frame is prevented;
When the product is assembled and disassembled with the cross rod and the support frame, the separating rod is only required to be pressed into the outer shell, then the long bolt is screwed or unscrewed, the cross rod is convenient to install or disassemble on the support frame, and the operation is easy.
Drawings
For a clearer description of embodiments of the present application or technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the present invention in a split;
FIG. 2 is a schematic diagram of the connection of the present invention;
FIG. 3 is a schematic illustration of the present invention with the housing removed;
FIG. 4 is a schematic view of the internal structure of the housing of the present invention;
FIG. 5 is a first view, partially in section, of the housing of the present invention;
fig. 6 is a second view, partially in section, of the housing of the present invention.
Reference numerals illustrate:
1. a cross bar; 2. a support frame; 3. a connecting sheet; 301. a first sheet; 302. a second sheet; 303. a third sheet; 4. a housing; 5. a long bolt; 6. a first wedge; 601. a contact surface; 7. a second wedge; 8. a spring; 9. arc-shaped bulges; 10. an arc-shaped groove; 11. a separation rod; 12. a chute; 13. a ratchet wheel; 14. a rack; 15. a limiting block; 16. and a limit groove.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
The invention provides a detachable assembled sofa iron frame connecting structure as shown in figures 1-6, which is used for assembling a cross rod 1 and a support frame 2 into a sofa iron frame, wherein a vertical first sheet 301 is fixedly arranged at the end part of the cross rod 1, a horizontal second sheet 302 is fixedly connected to the bottom of the first sheet 301, a vertical third sheet 303 is fixedly connected to one side of the second sheet 302 away from the first sheet 301, a shell 4 is fixedly connected to one side of the third sheet 303 close to the first sheet 301, a long bolt 5 penetrates through the shell 4 and is in sliding connection with the long bolt 5, the long bolt 5 is in threaded connection with the support frame 2, a spring 8 is fixedly arranged at one side of the inner cavity of the shell 4, a second wedge block 7 is fixedly connected to the end part of the spring 8, the second wedge block 7 horizontally slides in the shell 4, one side of the second wedge block 7 away from the spring 8 is provided with a bevel edge, the hypotenuse gradually keeps away from spring 8 from top to bottom, be provided with first voussoir 6 between second voussoir 7 and the stock 5, first voussoir 6 is close to second voussoir 7 one side and has the inclined plane parallel with the hypotenuse, hypotenuse laminating with the inclined plane, first voussoir 6 can slide perpendicularly in shell 4, and can slide along the level, first voussoir 6 is close to stock 5 one side has the contact surface 601 that sets up perpendicularly, be provided with rack 14 on the contact surface 601, the outer peripheral face that stock 5 and contact surface 601 laminate has a plurality of tooth's socket, a plurality of tooth's socket forms ratchet 13 on stock 5 outer peripheral face, ratchet 13 and rack 14 meshing have seted up arc recess 10 at first voussoir 6 top, be provided with in the arc recess 10 with second piece 302 bottom surface fixed connection's arc protruding 9.
The installation step comprises the following steps: the user moves the cross bar 1 to one side of the support frame 2, the limiting block 15 on the third piece 303 is inserted into the limiting groove 16 of the support frame 2, then the separation is pushed inwards towards the shell 4, the first wedge block 6 is driven to push the second wedge block 7 to compress the spring 8, then the long bolt 5 is inserted into the shell 4 and screwed into the support frame 2, so that the shell 4 and the third piece 303 are fixed on the support frame 2, then the separation rod 11 is loosened, the spring 8 drives the first wedge block 6 to reset, and the installation step is completed;
The use state is as follows: when a consumer sits on the cross bar 1, the gravity generated by sitting on the cross bar 1 drives the first sheet 301 to descend, the first sheet 301 drives the second sheet 302 to bend downwards, the included angle between the second sheet 302 and the third sheet 303 is reduced, namely deformation occurs, the deformation amount is different based on different gravity, the second sheet 302 bends downwards and drives the arc-shaped bulge 9 to deflect downwards in the arc-shaped groove 10, so that the first wedge block 6 is driven to descend, when the first wedge block 6 moves downwards, the second wedge block 7 is driven to move the compression spring 8 through the fit between the inclined plane and the inclined plane, and the spring 8 can generate elastic force to act on the second wedge block 7 reversely and be transmitted to the first wedge block 6, so that the contact surface 601 of the first wedge block 6 is fit with the outer peripheral surface of the long bolt 5; the rack 14 on the contact surface 601 which descends at this time drives the ratchet wheel 13 on the long bolt 5 to apply a rotating acting force, the acting force drives the long bolt 5 to rotate in the screwing direction, when a consumer no longer applies an acting force to the cross rod 1, the second sheet 302 resets, so that no downward acting force is applied to the first wedge block 6, at the moment, the elastic force of the spring 8 during resetting drives the first wedge block 6 to ascend through the cooperation of the bevel edge and the inclined plane, the ratchet wheel 13 is not driven to reversely rotate when the rack 14 ascends due to the cooperation of the gear and the ratchet wheel 13, and the first wedge block 6 does not ascend after the arc-shaped groove 10 is contacted with the arc-shaped bulge 9;
And (3) a disassembly step: the operator presses down release lever 11 into shell 4 to drive first voussoir 6 and long bolt 5 separation, avoid rack 14 on the first voussoir 6 to hinder ratchet 13 reverse rotation, thereby lead to unable rotation long bolt 5, release lever 11 promotes after the separation of first voussoir 6, and the user unscrews long bolt 5, takes off long bolt 5 from support frame 2, can dismantle horizontal pole 1 and support frame 2.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (8)
1. A sofa iron stand connection structure of detachable equipment for assemble sofa iron stand with horizontal pole (1) and support frame (2), its characterized in that: the end part of the cross rod (1) is fixedly provided with a connecting sheet (3), the side wall of the connecting sheet (3) is fixedly provided with a shell (4), the inside of the shell (4) is penetrated and slidingly connected with a long bolt (5), the end part of the long bolt (5) is in threaded connection with the side wall of the supporting frame (2), a first wedge block (6) is movably connected in the shell (4), one side of the first wedge block (6) far away from the long bolt (5) is attached with a second wedge block (7) fixedly arranged in the inner cavity of the shell (4), one side of the first wedge block (6) far away from the second wedge block (7) is provided with a contact surface (601) which is attached with the outer peripheral surface of the long bolt (5) and is vertical, the outer peripheral surface attached with the contact surface (601) is provided with a plurality of tooth grooves distributed in an annular array, the outer peripheral surface of the long bolt (5) is provided with a ratchet wheel (13), the surface of the contact surface (601) is provided with a rack (14) which is matched with the ratchet wheel (13), the rack (14) moves downwards to drive the long bolt (5), one side of the first wedge block (6) is close to the second wedge block (7) and one side of the second wedge block (7) is close to the inclined surface of the long wedge block (6) which is close to the inclined surface of the long wedge block (6), the direction of the first wedge block (6) when moving vertically downwards is the same as the screwing direction of the long bolt (5) when screwing.
2. The detachably assembled sofa iron frame connecting structure as set forth in claim 1, wherein: the second wedge block (7) is not fixedly connected with the inner cavity of the shell (4), the second wedge block (7) is transversely and slidably connected in the inner cavity of the shell (4), a spring (8) is fixedly arranged between one side, away from the first wedge block (6), of the second wedge block (7) and the inner wall of the shell (4), and the spring (8) exerts elastic force pushing the first wedge block (6) on the second wedge block (7).
3. The detachably assembled sofa iron frame connecting structure as set forth in claim 1, wherein: the connecting piece (3) comprises a first piece (301) fixedly connected with the end part of the cross rod (1), a second piece (302) fixedly connected to the bottom of the first piece (301), and a third piece (303) fixedly connected to one side, far away from the first piece (301), of the second piece (302), the first piece (301), the second piece (302) and the third piece (303) are integrally formed, the shell (4) is fixedly connected with the side wall of the third piece (303), and one side, far away from the third piece (303), of the bottom surface of the second piece (302) is attached to the top surface of the first wedge block (6).
4. A detachably assembled sofa iron frame connecting structure according to claim 3, characterized in that: the joint of the bottom surface of the second piece (302) and the first wedge block (6) is provided with an arc-shaped bulge (9), the top surface of the first wedge block (6) is provided with an arc-shaped groove (10) matched with the arc-shaped bulge (9), and the arc-shaped bulge (9) is positioned in the arc-shaped groove (10).
5. The detachably assembled sofa iron frame connecting structure as set forth in claim 2, wherein: a separating rod (11) is fixedly arranged on one side, far away from the spring (8), of the first wedge block (6), and a sliding groove (12) which is in sliding connection with the separating rod (11) is formed on one side, far away from the spring (8), of the shell (4).
6. The detachably assembled sofa iron frame connecting structure as set forth in claim 1, wherein: the outer peripheral surface of the long bolt (5) attached to the contact surface (601) and the surface of the contact surface (601) are provided with anti-skid lines.
7. The detachably assembled sofa iron frame connecting structure as set forth in claim 2, wherein: the upward movement of the rack (14) drives the spring (8) to compress through the first wedge block (6) and the second wedge block (7), and the ratchet wheel (13) is not driven to rotate by slipping on the surface of the ratchet wheel (13).
8. A detachably assembled sofa iron frame connecting structure according to claim 3, characterized in that: a limiting block (15) is fixedly arranged on one side, far away from the shell (4), of the third piece (303), and a limiting groove (16) matched with the limiting block (15) in shape is formed in the surface of the supporting frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410364248.XA CN117967661B (en) | 2024-03-28 | 2024-03-28 | Detachable sofa iron frame connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410364248.XA CN117967661B (en) | 2024-03-28 | 2024-03-28 | Detachable sofa iron frame connecting structure |
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| Publication Number | Publication Date |
|---|---|
| CN117967661A CN117967661A (en) | 2024-05-03 |
| CN117967661B true CN117967661B (en) | 2024-06-04 |
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| CN202410364248.XA Active CN117967661B (en) | 2024-03-28 | 2024-03-28 | Detachable sofa iron frame connecting structure |
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|---|---|---|---|---|
| KR100794784B1 (en) * | 2007-07-23 | 2008-01-15 | (주)경동기술공사 | Bolt unit for anti-loose |
| CN205478711U (en) * | 2016-02-18 | 2016-08-17 | 佛山市卡隆五金精密制造有限公司 | A furniture plate body connecting piece for intelligent house |
| CN209557453U (en) * | 2019-02-14 | 2019-10-29 | 厦门伊格特精密机械有限公司 | One kind can anti-loosening fastening nut |
| CN217814470U (en) * | 2022-02-17 | 2022-11-15 | 梁天宇 | Ratchet bolt and ratchet nut |
| CN115247740A (en) * | 2022-06-22 | 2022-10-28 | 中国船舶重工集团公司第七一九研究所 | Load platform with bidirectional locking device |
| CN116464702A (en) * | 2023-05-10 | 2023-07-21 | 广东富华重工制造有限公司 | Anti-loosening structure for vehicle suspension and vehicle suspension |
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| CN117967661A (en) | 2024-05-03 |
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