CN211776699U - Cabinet door support structure - Google Patents

Abstract

The utility model relates to a cabinet door bracing structure, which comprises a positioning seat, an elastic telescopic mechanism, an adjusting component, a connecting rod component and a fixed seat body, wherein the elastic telescopic mechanism is hinged on the positioning seat; the adjusting assembly comprises a positioning block, a limiting shaft, a switching block, a switching shaft and an adjusting screw, wherein the positioning block is provided with a waist-shaped limiting hole, the limiting shaft is embedded in the waist-shaped limiting hole in a sliding manner, the switching block is movably sleeved on the limiting shaft, the switching shaft can be embedded on the switching block in a rotating manner, and the adjusting screw can be arranged on the positioning block in a rotating manner; the elastic telescopic mechanism can be rotatably sleeved on the limiting shaft; the left end of the connecting rod assembly is hinged to the positioning block, and the right end of the connecting rod assembly is hinged to the fixed base body. The utility model discloses go up adjusting screw and realize rotating with spacing axle indirectly through switching piece and switching shaft and be connected, this homogeneity that can improve the last atress of adjusting screw to the wearing and tearing and the deformation rate of screw thread on the adjusting screw that can significantly reduce, and then help improving the life of cabinet door props structure.

Description

Cabinet door support structure

Technical Field

The utility model relates to a cabinet door accessory field, especially a cabinet door props structure.

Background

At present, most of cabinets are provided with cabinet doors mounted on the cabinet body through door supports. In order to compensate for installation errors, most door stays are provided with adjusting mechanisms. Among them, most of the conventional adjusting mechanisms are adjusted by screws. As the stress of each component on the door brace can be changed continuously in the process of opening and closing the cabinet door; the existing adjusting screw rod is mostly directly connected to the hinged position between some components, so that the acting force acting on the adjusting screw rod can be changed continuously, namely the condition of uneven stress is easy to occur on the adjusting screw rod; this easily leads to adjusting screw's thread wearing and tearing to accelerate to and easily lead to the condition that the thread on the adjusting screw appears out of shape, thereby easily lead to adjusting screw to lose the regulatory function, and then easily lead to the life reduction of portal bracing. Therefore, it is necessary to redesign the structure of the door stay.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem and not enough, provide a cabinet door props structure, this cabinet door props structural adjusting screw realizes rotating with spacing axle indirectly through switching piece and changeover spindle and is connected, and this can improve the homogeneity of adjusting screw atress when cabinet door props structure action to can significantly reduce the wearing and tearing and the deformation rate of spiral shell tooth on the adjusting screw, and then help improving the life of cabinet door props structure.

The technical scheme of the utility model is realized like this:

a cabinet door bracing structure is characterized by comprising a positioning seat, an elastic telescopic mechanism, an adjusting assembly, a connecting rod assembly and a fixed seat body, wherein the elastic telescopic mechanism is transversely arranged, the left end of the elastic telescopic mechanism is hinged to the positioning seat, and the hinge center line of the elastic telescopic mechanism and the hinge center line of the positioning seat longitudinally extends; the adjusting component comprises a positioning block, a limiting shaft, a transfer block, a transfer shaft and an adjusting screw, wherein the positioning block is provided with a waist-shaped limiting hole, the length direction of the radial section of the waist-shaped limiting hole is vertically extended, the end part of the limiting shaft is embedded in the waist-shaped limiting hole in a sliding way, the axial center line of the limiting shaft extends longitudinally, the limiting shaft can rotate around the axial center line of the limiting shaft, the transfer block is movably arranged on the positioning block, one end of the transfer block is movably sleeved on the limiting shaft, the transfer shaft can be rotatably embedded on the other end of the transfer block, the rotation center line of the transfer shaft extends longitudinally, the adjusting screw can be rotatably arranged on the positioning block, the threaded end of the adjusting screw is axially screwed with the switching shaft, and the axial center line of the adjusting screw is mutually vertical to the rotating center line of the switching shaft; the adjusting assembly is movably arranged on the positioning seat, and the right end of the elastic telescopic mechanism can be rotatably sleeved on the limiting shaft; the connecting rod assembly and the fixed base body are both arranged on the right side of the positioning seat, the left end of the connecting rod assembly is hinged to the positioning block, the hinge center line of the connecting rod assembly and the hinge center line of the positioning block longitudinally extends, and the right end of the connecting rod assembly is hinged to the fixed base body, and the hinge center line of the connecting rod assembly and the hinge center line of the fixed base body longitudinally extends.

Preferably, a placing cavity is formed on the left surface of the positioning block, a waist-shaped limiting hole longitudinally penetrates through the positioning block and penetrates through the placing cavity, the switching block is movably arranged in the placing cavity, a left placing groove is formed on the left end face of the switching block, the right end of the elastic telescopic mechanism is movably arranged in the left placing groove in a penetrating manner, the limiting shaft is longitudinally arranged in the placing cavity, the front end and the rear end of the limiting shaft are arranged in the corresponding waist-shaped limiting holes, the limiting shaft can rotatably penetrate through the left end of the switching block and the right end of the elastic telescopic mechanism, a right placing groove is formed on the right end face of the switching block, the switching shaft is longitudinally arranged in the right placing groove, the front end and the rear end of the switching shaft can be rotatably embedded in the front groove wall and the rear groove wall of the right placing groove respectively, the adjusting screw can be rotatably arranged on the right wall of the positioning block, and the threaded end of the adjusting screw is arranged in the placing cavity in a penetrating manner, the threaded end of the adjusting screw is also screwed on the middle part of the adapter shaft.

Preferably, cabinet door props structure still includes buffering subassembly, buffering subassembly includes fixed block, attenuator, the fixed block is fixed on the positioning seat to make the fixed block be located elastic telescoping mechanism's below, seted up on the right surface of fixed block and inlayed the dress hole, the cylinder body of attenuator inlays the dress and is adorned in inlaying the dress hole, and makes the expansion end of attenuator towards the right side, still when link assembly swings downwards, enables link assembly and collides the expansion end of attenuator on.

Preferably, the connecting rod assembly includes a first connecting rod, a second connecting rod, and a third connecting rod, the right end of the first connecting rod is hinged to the fixed seat body, and the hinge center line of the first connecting rod and the fixed seat body extends longitudinally, the right end of the second connecting rod is hinged to the fixed seat body, and the hinge center line of the second connecting rod and the fixed seat body extends longitudinally, and the hinge point of the second connecting rod and the fixed seat body is located on the left side of the hinge point of the first connecting rod and the fixed seat body, the left end of the second connecting rod is hinged to the positioning block, and the hinge center line of the second connecting rod and the positioning block extends longitudinally, the right end of the third connecting rod is hinged to the left end of the first connecting rod, and the hinge center line of the third connecting rod and the first connecting rod extends longitudinally, the middle of the third connecting rod is hinged to the second connecting rod, and the hinge center line of the third connecting rod and the second connecting rod extends longitudinally, the left end of the third connecting rod is hinged with the positioning seat, the hinge center line of the third connecting rod and the positioning seat longitudinally extends, and the hinge joint of the third connecting rod and the positioning seat is positioned above the hinge joint of the second connecting rod and the positioning block.

Preferably, the fixed base comprises a quick-assembly body, a fixed base, a limiting hook body and a limiting spring, wherein a transversely extending limiting groove is formed in the top surface of the quick-assembly body and extends to the left surface of the quick-assembly body, a convex stop block is arranged at the bottom of the groove on the right side of the limiting groove, a transverse guide groove is formed in the groove wall on the right side of the limiting groove, and a longitudinally extending clamping rod is arranged on the groove wall on the left side of the limiting groove; the left end of the fixed seat is provided with a positioning clamping groove, the bottom surface of the fixed seat is provided with a groove, and the right groove wall of the groove is provided with a hooking groove hole; the limiting hook body comprises a pressing part, an embedding part and a convex hook part, the embedding part is arranged on the left wall of the pressing part, a guide convex part matched with the transverse guide groove is arranged on the outer wall of the embedding part, a yielding groove is formed in the bottom surface of the embedding part, a convex hook is arranged on the right wall of the convex hook part, and the bottom of the convex hook part is connected with the top surface of the embedding part; the limiting hook body is arranged on the right side of the quick assembly body, the embedding part is movably embedded in the limiting groove, the guide convex part is embedded in the transverse guide groove in a sliding mode, and the yielding groove cover is arranged on the convex stop block; the limiting spring is arranged between the convex stop block and the pressing part, and two ends of the limiting spring respectively act on the right wall of the convex stop block and the left wall of the pressing part in an elastic manner; the quick-assembling body is covered on the fixed seat through the limiting groove, the clamping rod is embedded in the positioning clamping groove, the convex hook part is arranged in the groove in a penetrating mode, and the convex hook is embedded in the hook groove hole.

Preferably, the quick assembly body comprises a quick assembly shell, a limiting screw, an elastic piece, a first eccentric nail, a quick assembly cavity seat and a limiting rod, wherein a transversely extending installation groove is formed in the top surface of the quick assembly shell, two ends of the installation groove respectively extend to the left surface and the right surface of the quick assembly shell, threaded holes and sleeve penetrating holes which are parallel to each other from left to right are formed in the bottom surface of the quick assembly shell, and the threaded holes and the sleeve penetrating holes penetrate through the installation groove; a convex column is arranged on the end face of one end of the limiting screw, a limiting pressing block is arranged at the end part of the outer end of the convex column, the width of the limiting pressing block is larger than the outer diameter of the convex column, the limiting screw is screwed in the threaded hole, and one end of the limiting screw is arranged in the mounting groove; the elastic piece is arranged in the mounting groove and sleeved on the limiting screw; the end face of one end of the first eccentric nail is provided with a sleeve penetrating shaft, the end face of the other end of the first eccentric nail is provided with a first eccentric shaft, and the first eccentric nail is arranged in the mounting groove and can be rotatably penetrated in the sleeve penetrating hole; the limiting groove is transversely extended on the top surface of the fast-assembly cavity seat, and extends to the right surface of the fast-assembly cavity seat, the convex stop block, the transverse guide groove and the clamping rod are positioned on the fast-assembly cavity seat, a transversely extended limiting clamping groove is arranged at the groove bottom at the left side of the limiting groove, the limiting clamping groove extends to the bottom surface of the fast-assembly cavity seat and extends to the left surface of the fast-assembly cavity seat, the width of the limiting clamping groove is larger than the outer diameter of the convex column, and the width of the limiting clamping groove is smaller than the width of the limiting pressing block, a lower waist-shaped hole penetrating through the bottom surface of the fast-assembly cavity seat is arranged at the groove bottom of the limiting groove, the length direction of the radial section of the lower waist-shaped hole longitudinally extends, a limiting hole penetrating through the front wall of the fast-assembly cavity seat is arranged on the front wall of the fast-assembly cavity seat, the radial section of the limiting hole is rectangular or waist-, the fast-assembly cavity seat can be transversely and movably arranged in the mounting groove, the limiting clamping groove is clamped on the convex column, the lower waist-shaped hole is sleeved on the first eccentric shaft, and the elastic piece respectively and elastically acts on the groove bottom of the mounting groove and the bottom surface of the fast-assembly cavity seat; the limiting rod penetrates through the quick-mounting shell in a longitudinal arrangement mode and penetrates through the limiting hole.

Preferably, the fixing seat comprises a quick-assembly clamping seat, a fixing plate, a second eccentric nail, a first limit nail and a second limit nail, the positioning clamping groove is formed in the end portion of the left end of the quick-assembly clamping seat, the groove is formed in the bottom surface of the quick-assembly clamping seat, the hooking groove hole is formed in the quick-assembly clamping seat, an upper waist-shaped hole penetrating through the top surface of the quick-assembly clamping seat is formed in the groove bottom of the groove, the length direction of the radial section of the upper waist-shaped hole transversely extends, and a first waist-shaped hole is formed in the groove bottom of the groove and longitudinally extends; the fixing plate is characterized in that a second waist-shaped hole penetrating through the top surface of the fixing plate is formed in the top surface of the fixing plate, the length direction of the radial section of the second waist-shaped hole longitudinally extends, the fixing plate is movably arranged on the top surface of the fast-assembly clamping seat, the first limiting nail penetrates through the first waist-shaped hole and then is locked on the bottom surface of the fixing plate, the second limiting nail penetrates through the second waist-shaped hole and then is locked on the top surface of the fast-assembly clamping seat, a second eccentric shaft is arranged at one end of the second eccentric nail, and the second eccentric nail is movably arranged in the upper waist-shaped hole and can be rotatably connected to the fixing plate.

Preferably, the top surface of the fast-assembly clamping seat is provided with a protruding part, the bottom surface of the fixing plate is provided with a guide groove extending longitudinally, and the protruding part is embedded in the guide groove in a sliding manner.

Preferably, the elastic telescopic mechanism comprises a left block body, a right block body, a connecting rod and a spring, wherein the left block body is hinged to the positioning seat, the left block body and the hinge center line of the positioning seat are longitudinally extended, the right block body is movably arranged on the positioning seat, the right block body is located on the right side of the left block body, a connecting convex part is arranged on the right surface of the right block body, the connecting convex part can be rotatably sleeved on the limiting shaft, the connecting rod is transversely arranged, the right end of the connecting rod is fixed on the right block body, the left end of the connecting rod can transversely movably penetrate the left block body, the spring is sleeved on the connecting rod, and two ends of the spring respectively elastically push against the left block body and the right block body.

Preferably, the left end of the connecting rod is provided with a waist-shaped hole, the length direction of the radial section of the waist-shaped hole transversely extends, the left block body is provided with a through hole transversely penetrating through the left block body, a limiting pin is arranged in the through hole, two ends of the limiting pin penetrate through the hole wall of the through hole, the left end of the connecting rod movably penetrates through the through hole, and the limiting pin penetrates through the waist-shaped hole.

The utility model has the advantages that: the utility model discloses a cabinet door props structure includes the positioning seat, elastic expansion mechanism, adjusting part, link assembly, fixed pedestal, and adjusting part includes the locating piece, the switching piece, adjusting screw, spacing axle, the switching axle, wherein elastic expansion mechanism is connected through spacing axle with adjusting part's rotation and is realized, and the last regulation effect of adjusting part is through rotating adjusting screw, promote the switching piece, then under the motion of switching piece, just can make spacing axle remove on the spacing hole of waist shape, just so can reach the regulation effect. After the structure design, the acting force between the positioning block and the elastic telescopic mechanism can act on the limiting shaft mostly; and then can rotate between last spiale and the switching piece, like this at this cabinet door props the action in-process, can guarantee effectively that the stability of atress on the adjusting screw to avoid adjusting the wearing and tearing speed of screw thread on the screw, and can significantly reduce the probability that the screw thread appears warping on the adjusting screw, thereby just can make adjusting part keep the effect of fine regulation for a long time, and then help improving the life of cabinet door props the structure. And the overall structure of the adjusting component is very simple and reliable, and the cabinet door brace structure can be conveniently and quickly manufactured, so that the cabinet door brace structure is very convenient to manufacture.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the split structure of the present invention.

Fig. 3 is a schematic perspective view of the adjusting assembly of the present invention.

Fig. 4 is a second schematic perspective view of the adjusting assembly of the present invention.

Fig. 5 is a schematic sectional view of the adjusting assembly of the present invention.

Fig. 6 is a schematic view of a part of the structure of the adjusting assembly of the present invention.

Fig. 7 is a schematic perspective view of the middle connecting rod assembly according to the present invention.

Fig. 8 is a schematic view of a part of the structure of the middle connecting rod assembly according to the present invention.

Fig. 9 is a schematic view of a split structure of the middle buffering assembly of the present invention.

Fig. 10 is a schematic perspective view of the middle fixing base of the present invention.

Fig. 11 is a schematic view of the detachable structure of the middle fixing base of the present invention.

Fig. 12 is a schematic view of the split structure of the middle quick-assembling body of the present invention.

Fig. 13 is a schematic structural view of the middle position-limiting hook body of the present invention.

Fig. 14 is a schematic structural view of the middle quick-assembly cavity base of the present invention.

Fig. 15 is a schematic structural view of the quick-mounting case of the present invention.

Fig. 16 is a schematic structural view of the middle stop screw according to the present invention.

Fig. 17 is a schematic structural view of the elastic member of the present invention.

Fig. 18 is a schematic structural view of the first eccentric nail according to the present invention.

Fig. 19 is a second schematic structural view of the first eccentric nail of the present invention.

Fig. 20 is a schematic view of the detachable structure of the middle fixing base of the present invention.

Fig. 21 is a schematic structural view of the middle quick-assembly card holder of the present invention.

Fig. 22 is a schematic structural view of the fixing plate of the present invention.

Fig. 23 is a schematic structural view of a second eccentric nail according to the present invention.

Fig. 24 is a schematic perspective view of the middle elastic expansion mechanism of the present invention.

Fig. 25 is a schematic view of a part of the structure of the middle elastic telescopic mechanism of the present invention.

Detailed Description

It should be noted that all the directional indicators (such as the top surface, the bottom surface, the left, the right, the front, and the rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1 and 2, the door bracing structure of the cabinet door of the present invention comprises a positioning seat 1, an elastic expansion mechanism 2, an adjusting assembly 3, a connecting rod assembly 4, and a fixing seat 5, wherein, as shown in fig. 2, the elastic expansion mechanism 2 is transversely arranged, and the left end of the elastic expansion mechanism 2 is hinged to the positioning seat 1, and the hinge center line of the elastic expansion mechanism 2 and the hinge center line of the positioning seat 1 is longitudinally extended; as shown in fig. 3 to 6, the adjusting assembly 3 includes a positioning block 31, a limiting shaft 32, a transfer block 33, a transfer shaft 34, and an adjusting screw 35, wherein the positioning block 31 is provided with a waist-shaped limiting hole 311, the length direction of the radial section of the waist-shaped limiting hole 311 is vertically extended, the end portion of the limiting shaft 32 is slidably inserted into the waist-shaped limiting hole 311, the axial center line of the limiting shaft 32 is longitudinally extended, the limiting shaft 32 is rotatable around the axial center line of the limiting shaft 32, the transfer block 33 is movably disposed on the positioning block 31, one end of the transfer block 33 is movably sleeved on the limiting shaft 32, the transfer shaft 34 is rotatably inserted on the other end of the transfer block 33, the rotational center line of the transfer shaft 34 is longitudinally extended, the adjusting screw 35 is rotatably disposed on the positioning block 31, and the threaded end of the adjusting screw 35 is screwed with the transfer shaft 34, the axial center line of the adjusting screw 35 is perpendicular to the rotation center line of the adapter shaft 34; as shown in fig. 1 and fig. 2, the adjusting assembly 3 is movably disposed on the positioning seat 1, and the right end of the elastic telescopic mechanism 2 can be rotatably sleeved on the limiting shaft 32; the connecting rod assembly 4 and the fixing base body 5 are both arranged on the right side of the positioning seat 1, the left end of the connecting rod assembly 4 is hinged to the positioning block 31, the hinge center line of the connecting rod assembly 4 and the positioning block 31 longitudinally extends, and the right end of the connecting rod assembly 4 is hinged to the fixing base body 5, and the hinge center line of the connecting rod assembly 4 and the fixing base body 5 longitudinally extends. The utility model discloses a cabinet door props structure includes positioning seat 1, elastic expansion mechanism 2, adjusting part 3, link assembly 4, fixed pedestal 5, and adjusting part 3 includes locating piece 31, switching piece 33, adjusting screw 35, spacing axle 32, switching axle 34, wherein elastic expansion mechanism 2 is connected through spacing axle 32 with adjusting part 3's rotation and is realized, and adjusting part 3 is last regulation effect is through rotating adjusting screw 35, promote switching piece 33, then under switching piece 33's motion, just can make spacing axle 32 remove on the spacing hole 311 of waist shape, just so can reach the regulating effect. Through the structural design, most of acting force between the positioning block 31 and the elastic telescopic mechanism 2 can act on the limiting shaft 32; and then go up and to rotate between adapting shaft 34 and the switching piece 33, in this cabinet door props the structure action in-process, can guarantee the stability of atress on the adjusting screw 35 effectively like this to avoid the wearing and tearing speed of screw thread on the adjusting screw 35, and can significantly reduce the probability that the screw thread appears warping on the adjusting screw 35, thereby just can make adjusting part 3 keep the effect of fine regulation for a long time, and then help improving the life of cabinet door props the structure. And the overall structure of the adjusting component 3 is still very simple and reliable, which can be convenient for quickly manufacturing the cabinet door brace structure, so the cabinet door brace structure is very convenient to manufacture.

As shown in fig. 1 and 2, the positioning seat 1 is composed of a front plate, a rear plate, and a plurality of middle cushion blocks, wherein the front plate and the rear plate are embedded and arranged side by side, and each middle cushion block is arranged between the front plate and the rear plate. The structure design is very simple and reliable.

As shown in fig. 3 to 6, a mounting cavity 312 is formed on the left surface of the positioning block 31, the waist-shaped limiting hole 311 longitudinally penetrates through the positioning block 31, and the waist-shaped limiting hole 311 penetrates through the mounting cavity 312, the adapting block 33 is movably arranged in the mounting cavity 312, a left mounting groove 331 is formed on the left end surface of the adapting block 33, the right end of the elastic expansion mechanism 2 is movably inserted into the left mounting groove 331, the limiting shaft 32 is longitudinally arranged in the mounting cavity 312, and the front end and the rear end of the limiting shaft 32 are arranged in the corresponding waist-shaped limiting hole 311, and the limiting shaft 32 can rotatably penetrate through the left end of the adapting block 33 and the right end of the elastic expansion mechanism 2, a right mounting groove 332 is formed on the right end surface of the adapting block 33, the adapting shaft 34 is longitudinally arranged in the right mounting groove 332, and the front end and the rear end of the adapting shaft 34 are rotatably embedded on the front and rear groove walls of the right mounting groove 332, the adjusting screw 35 is rotatably disposed on the right wall of the positioning block 31, and has a threaded end of the adjusting screw 35 inserted into the placing cavity 312 and a threaded end of the adjusting screw 35 screwed onto the middle portion of the adapter shaft 34. Through the structural design, the structural strength and the reliability of the adjusting assembly 3 can be further improved, so that the reliability and the service life of the cabinet door support structure can be further improved; and the adjustment screw 35 is provided on the right wall of the positioning block 31, which contributes to the improvement of the convenience of use of the adjustment assembly 3.

As shown in fig. 6, the transfer block 33 is formed by bending a sheet, and after the sheet is bent, the left mounting groove 331 and the right mounting groove 332 can be simultaneously obtained, which contributes to improvement of convenience in processing the transfer block 33.

As shown in fig. 2 and 3, the front wall of the positioning block 31 is provided with an observation hole 313 penetrating to the mounting cavity 312, and the observation hole 313 is positioned at the front side of the transfer shaft 34. This facilitates not only the observation of the condition of the adapter shaft 34, but also the addition of lubricating oil to the adapter shaft 34, which contributes to the improvement of the convenience of maintenance of the adjustment assembly 3.

As shown in fig. 3 to 5, the positioning block 31 is composed of a front plate, a rear plate, and a middle reinforcing block, the front plate and the rear plate are respectively covered on the front and rear surfaces of the middle reinforcing block, a placing cavity 312 is formed between the front plate and the rear plate, the adjusting screw 35 is rotatably disposed on the middle reinforcing block, and the connecting rod assembly 4 is hinged on the right end of the middle reinforcing block.

As shown in fig. 2 and 9, the cabinet door bracing structure further includes a buffer assembly 6, the buffer assembly 6 includes a fixed block 61 and a damper 62, the fixed block 61 is fixed on the positioning seat 1, and the fixed block 61 is located below the elastic expansion mechanism 2, an embedded hole 611 is formed on the right surface of the fixed block 61, a cylinder 621 of the damper 62 is embedded in the embedded hole 611, and the movable end 622 of the damper 62 faces right, and when the link assembly 4 swings downward, the link assembly 4 can collide with the movable end of the damper 62. Through the setting of buffering subassembly 6, can play fine cushioning effect when closing the cabinet door to reduce the noise and the vibrations that the cabinet door was closed, thereby avoid causing the influence to people's life, and can improve the life of cupboard.

As shown in fig. 1, 2, 7 and 8, the connecting rod assembly 4 includes a first connecting rod 41, a second connecting rod 42 and a third connecting rod 43, the right end of the first connecting rod 41 is hinged to the fixed seat 5, and the first connecting rod 41 and the hinge center line of the fixed seat 5 extend longitudinally, the right end of the second connecting rod 42 is hinged to the fixed seat 5, and the second connecting rod 42 and the hinge center line of the fixed seat 5 extend longitudinally, and the hinge point of the second connecting rod 42 and the fixed seat 5 is located on the left side of the hinge point of the first connecting rod 41 and the fixed seat 5, the left end of the second connecting rod 42 is hinged to the positioning block 31, and the hinge center line of the second connecting rod 42 and the positioning block 31 extend longitudinally, the right end of the third connecting rod 43 and the left end of the first connecting rod 41 are hinged, and the hinge center line of the third connecting rod 43 and the first connecting rod 41 extend longitudinally, the middle part of the third connecting rod 43 is hinged to the second connecting rod 42, the hinge center line of the third connecting rod 43 and the hinge center line of the second connecting rod 42 longitudinally extend, the left end of the third connecting rod 43 is hinged to the positioning seat 1, the hinge center line of the third connecting rod 43 and the hinge center line of the positioning seat 1 longitudinally extend, and the hinge point of the third connecting rod 43 and the positioning seat 1 is located above the hinge point of the second connecting rod 42 and the positioning block 31. This link assembly 4's overall structure design is very simple reliable, and this can not only improve the convenience that this cabinet door props the structure and makes, can also improve the reliability that this cabinet door props the structure.

The right end of the third link 43 can collide with the right end of the movable end 622 when swinging downward, so that a buffer effect can be achieved.

As shown in fig. 2 and 7, there are two second links 42, and the two second links 42 are arranged side by side in the front-rear direction, wherein the left end of the first link 41 and the right end of the third link 43 are disposed between the two second links 42. Through adopting such structural design, can further improve the structural strength and the reliability of cabinet door props the structure.

As shown in fig. 10 to 14 and 21, the fixed base 5 includes a quick-assembly body 51, a fixed base 52, a limiting hook body 53 and a limiting spring 54, a transversely extending limiting groove 511 is formed on the top surface of the quick-assembly body 51, the limiting groove 511 extends to the left surface of the quick-assembly body 51, a protruding stop 512 is arranged at the bottom of the right side of the limiting groove 511, a transverse guide groove 513 is formed on the groove wall at the right side of the limiting groove 511, and a longitudinally extending clamping rod 514 is arranged on the groove wall at the left side of the limiting groove 511; a positioning clamping groove 521 is formed at the left end of the fixed seat 52, a groove 522 is formed in the bottom surface of the fixed seat 52, and a hook slot hole 523 is formed in the right groove wall of the groove 522; the limiting hook body 53 comprises a pressing part 531, an embedding part 532 and a convex hook part 533, the embedding part 532 is arranged on the left wall of the pressing part 531, a guide convex part 534 matched with the transverse guide groove 513 is arranged on the outer wall of the embedding part 532, an abdicating groove 535 is arranged on the bottom surface of the embedding part 532, a convex hook 536 is arranged on the right wall of the convex hook part 533, and the bottom of the convex hook part 533 is connected with the top surface of the embedding part 532; the limit hook body 53 is arranged at the right side of the fast assembling body 51, the embedding part 532 is movably embedded in the limit groove 511, the guide convex part 534 is slidably embedded in the transverse guide groove 513, and the abdicating groove 535 is covered on the convex block 512; the limiting spring 54 is arranged between the convex stopper 512 and the pressing part 531, and two ends of the limiting spring 54 respectively act on the right wall of the convex stopper 512 and the left wall of the pressing part 531 elastically; the quick-assembling body 51 is covered on the fixed seat 52 through the limiting groove 511, and the clamping rod 514 is embedded in the positioning clamping groove 521, the convex hook portion 533 is inserted in the groove 522, and the convex hook 536 is embedded in the hook slot hole 523. Because the limit groove 511 is arranged on the quick-mounting body 51, and the quick-mounting body 51 is covered on the fixed seat 52 through the limit groove 511, the quick-mounting device can be ensured to have a compact structure, so that the space occupation amount of the quick-mounting device can be reduced, and the application range of the quick-mounting device can be further improved. The guide convex part 534 on the limit hook body 53 is slidably embedded in the transverse guide groove 513, so that the limit hook body 53 can slide transversely; because the receding groove 535 on the limit hook body 53 is covered on the convex stopper 512, the transverse sliding range of the limit hook body 53 can be effectively limited and the falling-off of the limit hook body 53 can be prevented by the arrangement of the convex stopper 512. Because the two ends of the limiting spring 54 respectively act on the right wall of the convex stop block 512 and the left wall of the pressing part 531 in an elastic manner, under the condition that the limiting hook body 53 is not interfered by external force, the limiting hook body 53 can be always positioned at the maximum position moving rightwards, and under the condition, the convex hook 536 on the right wall of the convex hook part 533 is always positioned in the hook groove hole 523, so that the reliability of the hooking effect of the limiting hook body 53 is improved, the assembly stability of the fast-assembling body 51 and the fixed seat 52 is improved, and the reliability of the fast-assembling device is improved. Since the clamping rod 514 is inserted into the positioning clamping groove 521, the convex hook portion 533 is inserted into the groove 522, and the convex hook 536 is inserted into the hook slot 523; therefore, the convex hook 536 can be moved out of the hook slotted hole 523 by pressing the limit hook body 53, so that the quick assembly body 51 can be quickly separated from the fixed seat 52, and the quick disassembly can be realized; on the contrary, since the limit hook body 53 is movable, the convex hook portion 533 can be easily placed in the groove 522, so that the convex hook 536 can be quickly inserted into the hook slot 523, and the quick-assembly body 51 and the fixed seat 52 can be quickly assembled together; when the door brace with the quick-mounting device is applied to the cabinet door, the convenience of mounting and dismounting the cabinet door can be effectively improved. As described above, the operation of the hook body 53 is performed by pressing, so that the quick-mounting device is convenient to operate. The overall structure through this quick-mounting device is still very reliable.

As shown in fig. 12 to 14, a left protrusion 501 is disposed on a right wall of the convex stopper 512, a right protrusion 502 is disposed on a left wall of the pressing portion 531, and both ends of the stopper spring 54 are respectively fitted over the left protrusion 501 and the right protrusion 502. Through the arrangement of the left convex part 501 and the right convex part 502, the limiting spring 54 can be well limited, the reliability of the installation and the positioning of the limiting spring 54 is improved, and the reliability of the quick assembly device is improved.

As shown in fig. 13, the pressing portion 531 is provided with a slip-preventing concave-convex portion 503 on the right wall thereof, so that when the pressing portion 531 is pressed, slipping can be prevented.

As shown in fig. 10 to 12 and 14 to 19, the quick-assembly body 51 includes a quick-assembly shell 515, a limit screw 516, an elastic member 517, a first eccentric nail 518, a quick-assembly cavity seat 519, and a limit rod 520, wherein a transversely extending installation groove 510 is formed on a top surface of the quick-assembly shell 515, two ends of the installation groove 510 respectively extend to left and right surfaces of the quick-assembly shell 515, a threaded hole 504 and a sleeve hole 505 are formed in a bottom surface of the quick-assembly shell 515, the threaded hole 504 and the sleeve hole 505 are arranged side by side left and right, and both the threaded hole 504 and the sleeve hole 505 penetrate through the installation groove 510; a convex column 506 is arranged on the end face of one end of the limit screw 516, a limit pressing block 507 is arranged at the end part of the outer end of the convex column 506, the width of the limit pressing block 507 is larger than the outer diameter of the convex column 506, the limit screw 516 is screwed in the threaded hole 504, and one end of the limit screw 516 is arranged in the installation groove 510; the elastic member 517 is arranged in the mounting groove 510, and the elastic member 517 is sleeved on the limit screw 516; a sleeve penetrating shaft 508 is arranged on one end face of the first eccentric nail 518, a first eccentric shaft 509 is arranged on the other end face of the first eccentric nail 518, and the first eccentric nail 518 is arranged in the mounting groove 510, so that the sleeve penetrating shaft 508 can be rotatably arranged in the sleeve penetrating hole 505 in a penetrating way; the limiting groove 511 is transversely extended on the top surface of the quick-assembly cavity seat 519, the limiting groove 511 is extended to the right surface of the quick-assembly cavity seat 519, the convex stop block 512, the transverse guide groove 513 and the clamping rod 514 are positioned on the quick-assembly cavity seat 519, a transversely extended limiting clamping groove 530 is arranged at the groove bottom at the left side of the limiting groove 511, the limiting clamping groove 530 extends to the bottom surface of the quick-assembly cavity seat 519 and extends to the left surface of the quick-assembly cavity seat 519, the width of the limiting clamping groove 530 is larger than the outer diameter of the convex column 506, the width of the limiting clamping groove 530 is smaller than the width of the limiting pressing block 507, a lower waist-shaped hole 540 penetrating through the bottom surface of the quick-assembly cavity seat 519 is arranged at the groove bottom of the limiting groove 511, the length direction of the radial section of the lower waist-shaped hole 540 longitudinally extends, a limiting hole 550 penetrating through the rear wall of the front wall of the quick-assembly cavity seat 519 is arranged, the radial section of, the length direction of the radial section of the limiting hole 550 transversely extends, the quick-assembly cavity seat 519 can be transversely and movably arranged in the mounting groove 510, the limiting clamping groove 530 is clamped on the convex column 506, the lower waist-shaped hole 540 is sleeved on the first eccentric shaft 509, and the elastic pieces 517 respectively and elastically act on the groove bottom of the mounting groove 510 and the bottom surface of the quick-assembly cavity seat 519; the limiting rod 520 is longitudinally arranged to penetrate the quick-mounting shell 515, and the limiting rod 520 penetrates the limiting hole 550. With the above design, the first eccentric pin 518 can be rotated to move the quick-mounting shell 515 transversely relative to the quick-mounting cavity 519, so that the transverse position of the quick-mounting shell 515 can be adjusted, which helps to improve the accuracy of the installation and positioning of the quick-mounting device.

As shown in fig. 2 and fig. 15, a connecting arm 560 is disposed at the left end of the quick-mounting housing 515, and the connecting arm 560 can be used for hinging the first connecting rod 41 and the second connecting rod 42 on the door stay of the cabinet door.

As shown in fig. 11, 12 and 17, the elastic member 517 is composed of an upper piece 570, a lower piece 580 and a side piece 590, the upper side and the lower side of the side piece 590 are respectively connected to the sides of the upper piece 570 and the lower piece 580, a vertically penetrating hole 5100 is formed in the top surface of the upper piece 570, the vertically penetrating hole 5100 penetrates through the lower piece 580, and the elastic member 517 is sleeved on the limit screw 516 through the vertically penetrating hole 5100. The elastic member 517 has a simple and reliable structure, and is easy to manufacture.

The elastic member 517 is formed by bending a metal plate.

As shown in fig. 12, 14 and 18, the outer wall of the first eccentric nail 518 is provided with a limiting wing 5200, the bottom surface of the fast-assembling cavity 519 is provided with a limiting convex column 5300, and the limiting convex column 5300 is located beside the limiting wing 5200. And after the first eccentric nail 518 rotates a certain radian, the limit wing 5200 can be pressed on the limit convex column 5300. The rotation radian of the first eccentric nail 518 can be limited by the matching of the limiting convex column 5300 and the limiting wing 5200.

As shown in fig. 19, a cross-shaped slot 5400 is formed on an outer end surface of the penetrating shaft 508, and the cross-shaped slot 5400 can be embedded by a screwdriver, so that the first eccentric nail 518 can be conveniently adjusted by the screwdriver.

As shown in fig. 10, 11, 20 to 23, the fixing seat 52 includes a quick-assembly clamping seat 524, a fixing plate 525, a second eccentric nail 526, a first limit nail 527, and a second limit nail 528, the positioning clamping groove 521 is disposed at the left end of the quick-assembly clamping seat 524, the groove 522 is disposed on the bottom surface of the quick-assembly clamping seat 524, the hook slot 523 is located on the quick-assembly clamping seat 524, the groove bottom of the groove 522 is further provided with an upper waist-shaped hole 529 which penetrates through the top surface of the quick-assembly clamping seat 524, and the length direction of the radial section of the upper waist-shaped hole 529 extends transversely, the groove bottom of the groove 522 is further provided with a first waist-shaped hole 5221, and the length direction of the radial section of the first waist-shaped hole 5221 extends longitudinally; the top surface of the fixing plate 525 is provided with a second waist-shaped hole 5251 penetrating through to the bottom surface thereof, the length direction of the radial section of the second waist-shaped hole 5251 longitudinally extends, the fixing plate 525 is movably arranged on the top surface of the quick-assembly clamping seat 524, the first limit nail 527 passes through the first waist-shaped hole 5221 and then is locked on the bottom surface of the fixing plate 525, the second limit nail 528 passes through the second waist-shaped hole 5251 and then is locked on the top surface of the quick-assembly clamping seat 524, one end of the second eccentric nail 526 is provided with a second eccentric shaft 5261, and the second eccentric nail 526 is movably arranged in the upper waist-shaped hole 529, so that the second eccentric shaft 5261 can be rotatably connected on the fixing plate 525. With the above design, the second eccentric pin 526 can be rotated to longitudinally move the quick-assembly clamping seat 524 relative to the fixing plate 525, so that the longitudinal position of the quick-assembly body 51 can be adjusted, which helps to improve the accuracy of the installation and positioning of the quick-assembly device.

As shown in fig. 23, a cross-shaped groove 5262 is formed in the other end surface of the second eccentric nail 526, and a screwdriver can be inserted into the cross-shaped groove 5262, so that the second eccentric nail 526 can be adjusted by the screwdriver.

As shown in fig. 11, 12, 20 and 21, a reinforcing rod 5111 is disposed in the limiting groove 511, and two ends of the reinforcing rod 5111 are respectively connected to the front and rear groove walls of the limiting groove 511; the bottom of the quick-assembly clamping seat 524 is provided with a clamping groove 5241, and the clamping groove 5241 is clamped on the reinforcing rod 5111. With such a structural design, the assembling reliability of the quick assembling body 51 and the fixed seat 52 is further enhanced.

As shown in fig. 11 and 20 to 22, a protrusion 5242 is disposed on the top surface of the quick-assembly clamping seat 524, a longitudinally extending guide groove 5252 is disposed on the bottom surface of the fixing plate 525, and the protrusion 5242 is slidably embedded in the guide groove 5252. Due to the arrangement of the protrusion 5242 and the guide groove 5252, and the sliding embedding of the protrusion 5242 in the guide groove 5252, the movement of the quick-assembly clamping seat 524 can be further guided, which helps to further improve the reliability of the fixed seat 52. As shown in fig. 11 to 13, in the actual manufacturing process, a plurality of protrusions 5242 may be disposed on the quick-assembly clamping seat 524, and a plurality of guide grooves 5252 matched with the protrusions 5242 may be disposed on the fixing plate 525.

As shown in fig. 11, 20 and 22, a bottom surface of the fixing plate 525 is provided with a counter bore 5253 penetrating to a top surface thereof, a bottom surface of the groove 522 is provided with an operation hole 5222 penetrating to a top surface of the fast-assembly clamping seat 524, and the operation hole 5222 is located right below the counter bore 5253. By the arrangement of the counter sink 5253, the fixing plate 525 can be fixed by screws conveniently; the opening of the access hole 5222 facilitates the insertion of a screwdriver through the quick-fit housing 515 and into the screw in the counter-bore 5253. This design is very simple and reliable and thus enables the holder 52 to be more compact.

As shown in fig. 12 and 13, a guide slope 5361 is provided on the right side edge of the upper surface of the protruding hook 536. Because the convex hook 536 is provided with the guiding inclined plane 5361, when the fast-assembling body 51 is installed, the limiting hook body 53 can automatically move through the action of the guiding inclined plane 5361 and the groove wall of the groove 522, so that the convex hook 536 can be automatically embedded in the hook groove hole 523; furthermore, the limit hook body 53 does not need to be pressed, which is helpful to further improve the convenience of assembling the quick assembling body 51 and the fixed seat 52.

As shown in fig. 12, 14 and 15, a first yielding hole 5151 penetrating through the mounting groove 510 is further formed in the bottom surface of the quick-mounting case 515, a second yielding hole 5112 is further formed in the bottom surface of the limiting groove 511, the second yielding hole 5112 is located right above the first yielding hole 5151, and the second yielding hole 5112 is located right below the second eccentric nail 526. Through the structural design, after the quick assembly device is installed, the screwdriver sequentially penetrates through the first abdicating hole 5151 and the second abdicating hole 5112 and then acts on the second eccentric nail 526, so that after the quick assembly device is installed, the quick assembly device can be adjusted. And such design also can guarantee that the fast-assembling device has compact structure.

As shown in fig. 24 and 25, the elastic telescopic mechanism 2 includes a left block 21, a right block 22, a connecting rod 23, and a spring 24, the left block 21 is hinged to the positioning seat 1, and the hinge center line of the left block 21 and the positioning seat 1 extends longitudinally, the right block 22 is movably disposed on the positioning seat 1, and the right block 22 is located on the right side of the left block 21, a connecting protrusion 221 is disposed on the right surface of the right block 22, and the connecting protrusion 221 is rotatably sleeved on the limiting shaft 32, the connecting rod 23 is transversely disposed, and the right end of the connecting rod 23 is fixed on the right block 22, and the left end of the connecting rod 23 is transversely movably penetrated on the left block 21, and the spring 24 is sleeved on the connecting rod 23, and two ends of the spring 24 are respectively elastically pressed against the left block 21 and the right block 22. This elastic telescoping mechanism 2's structural design is very simple reliable, and this convenience that can not only improve this cabinet door props the structure and makes, can also improve the reliability that this cabinet door props the structure.

As shown in fig. 24 and 25, a waist-shaped hole 231 is formed at the left end of the connecting rod 23, the length direction of the radial section of the waist-shaped hole 231 extends transversely, a transversely penetrating through hole 211 is formed in the left block 21, a limit pin 212 is arranged in the through hole 211, two ends of the limit pin 212 penetrate through the hole wall of the through hole 211, the left end of the connecting rod 23 movably penetrates through the through hole 211, and the limit pin 212 penetrates through the waist-shaped hole 231. By adopting the structure, a very good limiting and guiding effect can be achieved, and the reliability of connection between the connecting rod 23 and the left block body 21 is improved.

In the actual manufacturing process, two connecting rods 23 and two springs 24 may be provided as shown in fig. 24 and 25, which further improves the reliability of the elastic expansion mechanism 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a cabinet door props structure which characterized in that: the device comprises a positioning seat (1), an elastic telescopic mechanism (2), an adjusting assembly (3), a connecting rod assembly (4) and a fixed seat body (5), wherein the elastic telescopic mechanism (2) is transversely arranged, the left end of the elastic telescopic mechanism (2) is hinged to the positioning seat (1), and the hinge center line of the elastic telescopic mechanism (2) and the hinge center line of the positioning seat (1) longitudinally extends; the adjusting component (3) comprises a positioning block (31), a limiting shaft (32), a switching block (33), a switching shaft (34) and an adjusting screw (35), wherein the positioning block (31) is provided with a waist-shaped limiting hole (311), the length direction of the radial section of the waist-shaped limiting hole (311) vertically extends, the end part of the limiting shaft (32) is embedded in the waist-shaped limiting hole (311) in a sliding manner, the axial center line of the limiting shaft (32) longitudinally extends, the limiting shaft (32) can rotate around the axial center line of the limiting shaft (32), the switching block (33) is movably arranged on the positioning block (31), one end of the switching block (33) is movably sleeved on the limiting shaft (32), the switching shaft (34) can be rotatably embedded on the other end of the switching block (33), and the rotating center line of the switching shaft (34) longitudinally extends, the adjusting screw (35) is rotatably arranged on the positioning block (31), the threaded end of the adjusting screw (35) is screwed with the transfer shaft (34), and the axial center line of the adjusting screw (35) is perpendicular to the rotating center line of the transfer shaft (34); the adjusting component (3) is movably arranged on the positioning seat (1), and the right end of the elastic telescopic mechanism (2) can be rotatably sleeved on the limiting shaft (32); the connecting rod assembly (4) and the fixed base body (5) are both arranged on the right side of the positioning seat (1), the left end of the connecting rod assembly (4) is hinged to the positioning block (31), the connecting rod assembly (4) and the positioning block (31) are hinged to the central line in a longitudinal extending mode, the right end of the connecting rod assembly (4) is hinged to the fixed base body (5), and the connecting rod assembly (4) and the fixed base body (5) are hinged to the central line in a longitudinal extending mode.

2. The cabinet door stay structure of claim 1, wherein: the left surface of the positioning block (31) is provided with a placing cavity (312), the waist-shaped limiting hole (311) longitudinally penetrates through the positioning block (31), the waist-shaped limiting hole (311) penetrates through the placing cavity (312), the transfer block (33) is movably arranged in the placing cavity (312), the left end face of the transfer block (33) is provided with a left placing groove (331), the right end of the elastic telescopic mechanism (2) is movably arranged in the left placing groove (331), the limiting shaft (32) is longitudinally arranged in the placing cavity (312), the front end and the rear end of the limiting shaft (32) are arranged in the corresponding waist-shaped limiting hole (311), the limiting shaft (32) can rotatably penetrate through the left end of the transfer block (33) and the right end of the elastic telescopic mechanism (2), the right end face of the transfer block (33) is provided with a right placing groove (332), and the transfer shaft (34) is longitudinally arranged in the right placing groove (332), the front end and the rear end of the transfer shaft (34) are respectively embedded on the front wall and the rear wall of the right mounting groove (332) in a rotatable manner, the adjusting screw (35) is arranged on the right wall of the positioning block (31) in a rotatable manner, the threaded end of the adjusting screw (35) penetrates through the mounting cavity (312), and the threaded end of the adjusting screw (35) is screwed on the middle part of the transfer shaft (34).

3. The cabinet door stay structure of claim 1, wherein: still include buffer unit (6), buffer unit (6) include fixed block (61), attenuator (62), fixed block (61) are fixed on positioning seat (1) to make fixed block (61) be located the below of elasticity telescopic machanism (2), inlay dress hole (611) have been seted up on the right surface of fixed block (61), cylinder body (621) of attenuator (62) inlay and adorn in inlaying dress hole (611) to make movable end (622) of attenuator (62) towards the right side, still when link assembly (4) swing down, enable link assembly (4) and collide on the movable end of attenuator (62).

4. The cabinet door stay structure of claim 1, wherein: the connecting rod assembly (4) comprises a first connecting rod (41), a second connecting rod (42) and a third connecting rod (43), the right end of the first connecting rod (41) is hinged on the fixed base body (5), the hinging center line of the first connecting rod (41) and the fixed base body (5) longitudinally extends, the right end of the second connecting rod (42) is hinged on the fixed base body (5), the hinging center line of the second connecting rod (42) and the fixed base body (5) longitudinally extends, the hinging point of the second connecting rod (42) and the fixed base body (5) is positioned on the left side of the hinging point of the first connecting rod (41) and the fixed base body (5), the left end of the second connecting rod (42) is hinged on the positioning block (31), the hinging center line of the second connecting rod (42) and the positioning block (31) longitudinally extends, and the right end of the third connecting rod (43) is hinged with the left end of the first connecting rod (41), and the third connecting rod (43) and the hinge center line of the first connecting rod (41) longitudinally extend, the middle part of the third connecting rod (43) is hinged with the second connecting rod (42), the hinge center line of the third connecting rod (43) and the second connecting rod (42) longitudinally extends, the left end of the third connecting rod (43) is hinged with the positioning seat (1), the hinge center line of the third connecting rod (43) and the positioning seat (1) longitudinally extends, and the hinge joint of the third connecting rod (43) and the positioning seat (1) is positioned above the left side of the hinge joint of the second connecting rod (42) and the positioning block (31).

5. The cabinet door stay structure of claim 1, wherein: the fixed base body (5) comprises a fast-assembling body (51), a fixed base (52), a limiting hook body (53) and a limiting spring (54), wherein a transversely extending limiting groove (511) is formed in the top surface of the fast-assembling body (51), the limiting groove (511) extends to the left surface of the fast-assembling body (51), a convex stop block (512) is arranged at the bottom of the right side of the limiting groove (511), a transverse guide groove (513) is formed in the groove wall of the right side of the limiting groove (511), and a longitudinally extending clamping rod (514) is arranged on the groove wall of the left side of the limiting groove (511); a positioning clamping groove (521) is formed in the left end of the fixed seat (52), a groove (522) is formed in the bottom surface of the fixed seat (52), and a hooking groove hole (523) is formed in the right groove wall of the groove (522); the limiting hook body (53) comprises a pressing part (531), an embedding part (532) and a convex hook part (533), the embedding part (532) is arranged on the left wall of the pressing part (531), a guide convex part (534) matched with the transverse guide groove (513) is arranged on the outer wall of the embedding part (532), a yielding groove (535) is formed in the bottom surface of the embedding part (532), a convex hook (536) is arranged on the right wall of the convex hook part (533), and the bottom of the convex hook part (533) is connected with the top surface of the embedding part (532); the limiting hook body (53) is arranged on the right side of the quick assembly body (51), the embedded part (532) is movably embedded in the limiting groove (511), the guide convex part (534) is embedded in the transverse guide groove (513) in a sliding mode, and the abdicating groove (535) covers the convex block (512); the limiting spring (54) is arranged between the convex stop block (512) and the pressing part (531), and two ends of the limiting spring (54) respectively act on the right wall of the convex stop block (512) and the left wall of the pressing part (531) in an elastic manner; the quick-assembling body (51) is covered on the fixed seat (52) through the limiting groove (511), the clamping rod (514) is embedded in the positioning clamping groove (521), the convex hook part (533) is embedded in the groove (522), and the convex hook (536) is embedded in the hook slotted hole (523).

6. The cabinet door bracing structure according to claim 5, wherein: the quick assembly body (51) comprises a quick assembly shell (515), a limiting screw (516), an elastic piece (517), a first eccentric nail (518), a quick assembly cavity seat (519) and a limiting rod (520), wherein a transversely extending installation groove (510) is formed in the top surface of the quick assembly shell (515), two ends of the installation groove (510) extend to the left surface and the right surface of the quick assembly shell (515) respectively, a threaded hole (504) and a sleeve penetrating hole (505) which are arranged side by side left and right are formed in the bottom surface of the quick assembly shell (515) respectively, and the threaded hole (504) and the sleeve penetrating hole (505) penetrate through the installation groove (510); a convex column (506) is arranged on the end face of one end of the limiting screw (516), a limiting pressing block (507) is arranged at the end part of the outer end of the convex column (506), the width of the limiting pressing block (507) is larger than the outer diameter of the convex column (506), the limiting screw (516) is screwed in the threaded hole (504), and one end of the limiting screw (516) is arranged in the mounting groove (510); the elastic piece (517) is arranged in the mounting groove (510), and the elastic piece (517) is sleeved on the limiting screw (516); a penetrating shaft (508) is arranged on one end face of the first eccentric nail (518), a first eccentric shaft (509) is arranged on the other end face of the first eccentric nail (518), and the first eccentric nail (518) is arranged in the mounting groove (510) and enables the penetrating shaft (508) to be rotatably penetrated in the penetrating hole (505); the limiting groove (511) is transversely extended on the top surface of the quick-assembly cavity seat (519), the limiting groove (511) extends to the right surface of the quick-assembly cavity seat (519), the convex stop block (512), the transverse guide groove (513) and the clamping rod (514) are positioned on the quick-assembly cavity seat (519), a transversely extended limiting clamping groove (530) is formed in the groove bottom on the left side of the limiting groove (511), the limiting clamping groove (530) extends to the bottom surface of the quick-assembly cavity seat (519) and the left surface of the quick-assembly cavity seat (519), the width of the limiting clamping groove (530) is larger than the outer diameter of the convex column (506), the width of the limiting clamping groove (530) is smaller than the width of the limiting quick-assembly pressing block (507), a lower waist-shaped hole (540) penetrating through the bottom surface of the cavity seat (519) is formed in the groove bottom of the limiting groove (511), and the length direction of the radial section of the lower waist-shaped hole (540) longitudinally extends, the front wall of the fast-assembly cavity seat (519) is provided with a limiting hole (550) penetrating to the rear wall of the fast-assembly cavity seat, the radial section of the limiting hole (550) is rectangular or waist-shaped, the length direction of the radial section of the limiting hole (550) transversely extends, the fast-assembly cavity seat (519) can be transversely and movably arranged in the mounting groove (510), the limiting clamping groove (530) is clamped on the convex column (506), the lower waist-shaped hole (540) is also sleeved on the first eccentric shaft (509), and the elastic piece (517) respectively and elastically acts on the groove bottom of the mounting groove (510) and the bottom surface of the fast-assembly cavity seat (519); the limiting rod (520) is longitudinally arranged on the quick mounting shell (515) in a penetrating mode, and the limiting rod (520) penetrates through the limiting hole (550).

7. The cabinet door bracing structure according to claim 5, wherein: the fixing seat (52) comprises a quick-assembly clamping seat (524), a fixing plate (525), a second eccentric nail (526), a first limiting nail (527) and a second limiting nail (528), a positioning clamping groove (521) is formed in the end portion of the left end of the quick-assembly clamping seat (524), a groove (522) is formed in the bottom surface of the quick-assembly clamping seat (524), a hooking groove hole (523) is formed in the quick-assembly clamping seat (524), an upper waist-shaped hole (529) penetrating through the top surface of the quick-assembly clamping seat (524) is further formed in the groove bottom of the groove (522), the length direction of the radial section of the upper waist-shaped hole (529) transversely extends, a first waist-shaped hole (5221) is further formed in the groove bottom of the groove (522), and the length direction of the radial section of the first waist-shaped hole (5221) longitudinally extends; the top surface of the fixing plate (525) is provided with a second waist-shaped hole (5251) penetrating through the bottom surface of the fixing plate, the length direction of the radial section of the second waist-shaped hole (5251) longitudinally extends, the fixing plate (525) is movably arranged on the top surface of the quick-assembly clamping seat (524), the first limit nail (527) penetrates through the first waist-shaped hole (5221) and then is locked on the bottom surface of the fixing plate (525), the second limit nail (528) penetrates through the second waist-shaped hole (5251) and then is locked on the top surface of the quick-assembly clamping seat (524), one end of the second eccentric nail (526) is provided with a second eccentric shaft (5261), and the second eccentric nail (526) is movably arranged in the upper waist-shaped hole (529) and can be rotatably connected to the fixing plate (525).

8. The cabinet door bracing structure according to claim 7, wherein: the top surface of the fast-assembling clamping seat (524) is provided with a protruding part (5242), the bottom surface of the fixing plate (525) is provided with a longitudinally extending guide groove (5252), and the protruding part (5242) is embedded in the guide groove (5252) in a sliding manner.

9. The cabinet door stay structure of claim 1, wherein: the elastic telescopic mechanism (2) comprises a left block body (21), a right block body (22), a connecting rod (23) and a spring (24), the left block body (21) is hinged on the positioning seat (1), the left block body (21) and the hinge center line of the positioning seat (1) are longitudinally extended, the right block body (22) is movably arranged on the positioning seat (1), and the right block body (22) is positioned at the right side of the left block body (21), the right surface of the right block body (22) is provided with a connecting convex part (221), and the connecting convex part (221) can be rotatably sleeved on the limiting shaft (32), the connecting rod (23) is transversely arranged, the right end of the connecting rod (23) is fixed on the right block body (22), the left end of the connecting rod (23) can transversely and movably penetrate through the left block body (21), the spring (24) is sleeved on the connecting rod (23), and two ends of the spring (24) are respectively and elastically pressed on the left block body (21) and the right block body (22).

10. The cabinet door stay structure of claim 9, wherein: waist shape hole (231) have been seted up on the left end of connecting rod (23) to the length direction who makes the radial cross-section in waist shape hole (231) is horizontal extension, set up perforation (211) that transversely run through on left side block (21), be equipped with spacer pin (212) in perforation (211), and make the both ends of spacer pin (212) wear to arrange in on the pore wall of perforation (211), the left end activity of connecting rod (23) wears to arrange in perforation (211), still makes spacer pin (212) wear to arrange in waist shape hole (231).

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