CN112343902A

CN112343902A - Hidden drawing buckle locking connection structure for connection between plates

Info

Publication number: CN112343902A
Application number: CN201910723179.6A
Authority: CN
Inventors: 彭志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2021-02-09

Abstract

The invention relates to a hidden drawing buckle locking connection structure for connection between plates, which comprises an embedded body, an installation fixing mechanism, a lock pin, a locking head and a spiral drawing mechanism, wherein the spiral drawing mechanism comprises a spiral rotating part, a horizontal drawing part and a positioning part, the spiral rotating part is vertically installed in the embedded body, the top end of the spiral rotating part is exposed out of the surface of the embedded body, the horizontal drawing part is arranged in the embedded body, one end of the horizontal drawing part is connected with the spiral rotating part, the other end of the horizontal drawing part is connected with the rear end of the lock pin, the locking head is installed at the front end of the lock pin, and the positioning part is arranged on the spiral rotating part or the horizontal drawing part. The scheme of the invention has the advantages of simple structure, easy realization, convenient assembly, firm and tight connection, no gap at the joint, repeated assembly and disassembly, no damage to the integrity and the perfection of plates or workpieces and the like.

Description

Hidden drawing buckle locking connection structure for connection between plates

Technical Field

The invention relates to the technical field of accessories for fixedly connecting workpieces, in particular to a locking connection accessory mechanism which is very simple, convenient, quick and firm to use.

Background

In the assembly and fixation of the existing workpieces, the most common way is to fix the workpieces by self-tapping screws. For example, in the assembly of an all-aluminum furniture cabinet, when aluminum alloy plates are fixedly connected with each other, an aluminum alloy square bar is fixed on the side surface of one aluminum alloy plate by using a self-tapping screw; the end surface of the other aluminum alloy plate is provided with a groove which is embedded on the aluminum alloy square strip, and then the groove is locked into the aluminum alloy square strip by a self-tapping screw from the outer side of the groove to realize the vertical assembly and connection between the two aluminum alloy plates. In practical applications, the method mainly has the following defects: firstly, the self-tapping screws are adopted for fixed connection, the engagement contact area between the self-tapping screws and the aluminum alloy materials is small, and when the connected aluminum alloy plates are under the action of external force, the connection parts of the self-tapping screws are easy to deform and tear, so that the firmness and reliability of assembly connection between the aluminum alloy plates are influenced; secondly, the self-tapping screws are adopted for fixed connection, one self-tapping screw cannot be fixed generally, but a plurality of self-tapping screws are adopted for multi-point type fixation, so that a plurality of screw heads are usually left on the surface of the aluminum alloy plate and are displayed outside, and the attractiveness and the grade of the all-aluminum furniture cabinet are influenced; thirdly, self-tapping screws are adopted for fixed connection, and the same screw hole position cannot be restored after being expanded once and cannot be locked when being used repeatedly, so that the all-aluminum furniture cabinet cannot be assembled and disassembled repeatedly, and the moving of the all-aluminum furniture cabinet is greatly influenced; fourthly, because of no elastic squeezing or tensioning force, after the aluminum alloy plate is assembled, a large gap is left between the contact surfaces of the aluminum alloy plate and the aluminum alloy plate, the assembling tightness is poor, and the assembling quality is poor. Therefore, based on the defects of the existing tapping screw connection and fixation method, the applicant believes that a brand new assembly and connection mechanism is needed to be developed to replace the existing tapping screw fixation method, so as to overcome various defects caused by the existing tapping screw assembly and fixation method, enable the all-aluminum furniture cabinet to be assembled more firmly, reliably, durably and beautifully, and realize repeated lossless assembly and disassembly, and further enable all-aluminum furniture products to better meet the requirements of people.

Disclosure of Invention

The invention aims to solve the problems and the defects and provides a hidden drawing buckle locking and connecting structure for connecting plates, which adopts main parts such as an embedded body, an installation and fixing mechanism, a lock pin, a lock head, a spiral drawing mechanism and the like to construct a simple, convenient and quick locking type connecting mechanism with firm connection; when the device is applied, the embedded body is arranged in the inner cavity of one of two plates or workpieces through the mounting and fixing mechanism, the other plate or workpiece is provided with a buckle locking hole suitable for embedding and buckling the lock pin and the lock head, and then the plate or workpiece is pressed downwards to ensure that the lock head is clamped on the hole edge of the buckle locking hole, the spiral drawing mechanism is rotated by using an operating tool to draw the lock pin to move, so that the lock head is firmly pressed and abutted against the inner wall of the hole cavity of the buckle locking hole, and the two plates or workpieces are assembled and connected together in a mutually perpendicular mode in a simple, convenient and quick way with firm connection; in addition, the pulling force generated by the rotation of the spiral pulling mechanism is converted into the force of pressing the lock pin against the buckle lock hole, and the lock pin is positioned and locked by the positioning part on the spiral pulling mechanism, so that the phenomena of loosening and infirm buckling lock caused by the action of external force are avoided, the hole cavity wall of the buckling hole is broken by pulling unless the external force is excessive, and when the hole cavity wall collapses, the phenomena of loosening and infirm connection of two plates or workpieces are possible; and because under the action of the spiral drawing mechanism, the lock pin moves and changes relative length distance in the moving process, and the movement and the change can form the movement of tensioning one plate or workpiece to the other plate or workpiece, so that the two plates or workpieces are mutually vertical, fixedly connected and installed tightly, and almost no gap appears on the outer surface of the plate; the scheme of the invention has the advantages of simple structure, easy realization, convenient assembly, firm and tight connection, no gap at the joint, repeated assembly and disassembly, no damage to the integrity and the perfection of plates or workpieces and the like.

The technical scheme of the invention is realized as follows: a hidden drawing buckle locking connection structure for connection between plates is characterized by comprising an embedded body with a hollow structure, an installation fixing mechanism, a lock pin, a locking head and a spiral drawing mechanism, wherein the installation fixing mechanism is arranged on the embedded body; the spiral drawing mechanism comprises a spiral rotating component, a horizontal drawing component and a positioning part, the spiral rotating component is vertically arranged in the embedded body, and the top end of the spiral rotating component is exposed out of the surface of the embedded body; the horizontal pulling component is arranged in the embedded body, one end of the horizontal pulling component is connected with the spiral rotating component, the other end of the horizontal pulling component is connected with the rear end of the lock pin, the locking head is arranged at the front end of the lock pin, the horizontal pulling component forms the action of pulling the lock pin and the locking head under the rotation driving of the spiral rotating component, and the positioning part is arranged on the spiral rotating component or the horizontal pulling component so as to enable the horizontal pulling component to keep the formed pulling action unchanged.

Further, in order to facilitate people to select various different spiral drawing mechanisms during implementation, the specific scheme structure of the spiral drawing mechanism can include the following structures:

firstly, the spiral rotating part is a cylinder, a reducing ring buckling groove from large to small is further formed in the lower portion of the surface of the cylinder, a sleeved upper portion is further arranged on the upper portion of the cylinder, and the positioning portion is a ring of one-way outward ring teeth arranged on the sleeved upper portion; the top end of the upper sleeved part is also provided with a tool operation hole, the embedded body is correspondingly provided with a sleeving hole, the hole wall of the sleeving hole is also provided with a ring of unidirectional inner ring teeth, the upper sleeved part is sleeved in the sleeving hole, and the unidirectional outer ring teeth are meshed with the unidirectional inner ring teeth so as to realize the fixation after the spiral rotating part rotates; the horizontal pulling part is a pulling rod, one end of the pulling rod is also provided with a buckle joint, and the buckle joint is buckled in the reducing ring buckle groove; and a return spring is also arranged at the bottom end of the spiral rotating part, one end of the return spring is propped against the bottom end of the spiral rotating part, and one end of the return spring is propped against the inner cavity wall of the embedded body.

The spiral rotating part is an eccentric wheel part, the upper end and the lower end of the eccentric wheel part are respectively provided with a sleeved upper part and a sleeved lower part, and the top end of the sleeved upper part is provided with a tool operating hole; the embedded body is correspondingly provided with a sleeving hole, the upper sleeving part is sleeved with the sleeving hole, the embedded body is also provided with a sleeving shaft hole, and the lower sleeving part is sleeved with the sleeving shaft hole; the horizontal pulling part is a bracket body, the bracket body is also provided with an eccentric shaft hole, and the eccentric wheel part is sleeved in the eccentric shaft hole; the positioning part is a tilting tail part integrally processed on the rear end of the bracket body, and the rear end of the embedded body is also provided with a positioning hole for the tilting tail part to penetrate through.

Thirdly, the spiral rotating component is a conical cylinder, the top surface of the conical cylinder is also provided with a tool operating hole, the positioning part is an external thread which is also arranged on the peripheral side surface of the conical cylinder, the embedded body is also provided with a vertical screw hole, and the conical cylinder is arranged on the embedded body through the screwing of the external thread and the vertical screw hole; the horizontal pulling part is a support body, the support body is also provided with an embedding hole, and the bottom end of the conical column body is sleeved on the embedding hole in a hollow mode; and a return spring is also arranged between the rear end of the bracket body and the inner cavity wall of the embedded body, one end of the return spring is propped against the rear end of the bracket body, and the other end of the return spring is propped against the inner cavity wall of the embedded body so as to force the horizontal pulling part to slide and return towards the front end of the embedded body.

Still further, in order to provide various fixing modes for people to choose during the application process, the invention can be applied to the assembly and connection of the plates under various conditions, and the invention also has various implementation forms, specifically as follows:

firstly, the installation fixing mechanism is a fixing lug with a screw hole which is integrally processed at two sides of the embedded body.

Secondly, the mounting and fixing mechanism consists of a bayonet lock and a return spring, and the bottom of the bayonet lock is also provided with a limit ring part; the embedded body is also provided with a clamping pin hole; the bayonet lock is sleeved in the bayonet lock hole, and the limit ring part is abutted against the edge of the bayonet lock hole so that the bayonet lock is limited on the embedded body and is not separated from the bayonet lock hole; the reset spring is arranged in the embedded body, one end of the reset spring is abutted against the bottom end of the clamping pin, the other end of the reset spring is abutted against the inner cavity wall of the embedded body, and under the action of the reset spring, the upper end of the clamping pin extends out of the embedded body.

Thirdly, the mounting and fixing mechanism is an extrusion and expansion fixing mechanism which consists of a fixed block with an inclined concave surface, a movable block with an inclined surface and a bolt; the fixed block is fixedly arranged on the side surface of the embedded body; the movable block is embedded in the inclined concave surface of the fixed block, the inclined surface of the movable block and the inclined concave surface of the fixed block are conical inclined surfaces with opposite directions, and the inclined surfaces and the inclined concave surfaces are arranged in a fit manner; the end surfaces of the fixed block and the movable block are respectively provided with a through hole and a screw hole, and the bolt passes through the through hole of the fixed block and is screwed into the screw hole of the movable block, so that the movable block moves along the fixed block under the screwing action of the bolt; and anti-skid textures are also arranged on the outer side surface of the movable block.

The invention has the beneficial effects that: the invention adopts the main parts of the embedded body, the installation fixing mechanism, the lock pin, the locking head, the spiral drawing mechanism and the like to construct a lock catch type connecting mechanism which is simple, convenient and quick to apply and is firmly connected; when the device is applied, the embedded body is arranged in the inner cavity of one of two plates or workpieces through the mounting and fixing mechanism, the other plate or workpiece is provided with a buckle locking hole suitable for embedding and buckling the lock pin and the lock head, and then the plate or workpiece is pressed downwards to ensure that the lock head is clamped on the hole edge of the buckle locking hole, the spiral drawing mechanism is rotated by using an operating tool to draw the lock pin to move, so that the lock head is firmly pressed and abutted against the inner wall of the hole cavity of the buckle locking hole, and the two plates or workpieces are assembled and connected together in a mutually perpendicular mode in a simple, convenient and quick way with firm connection; in addition, the pulling force generated by the rotation of the spiral pulling mechanism is converted into the force of pressing the lock pin against the buckle lock hole, and the lock pin is positioned and locked by the positioning part on the spiral pulling mechanism, so that the phenomena of loosening and infirm buckling lock caused by the action of external force are avoided, the hole cavity wall of the buckling hole is broken by pulling unless the external force is excessive, and when the hole cavity wall collapses, the phenomena of loosening and infirm connection of two plates or workpieces are possible; and because under the action of the spiral drawing mechanism, the lock pin moves and changes relative length distance in the moving process, and the movement and the change can form the movement of tensioning one plate or workpiece to the other plate or workpiece, so that the two plates or workpieces are mutually vertical, fixedly connected and installed tightly, and almost no gap appears on the outer surface of the plate; the scheme of the invention has the advantages of simple structure, easy realization, convenient assembly, firm and tight connection, no gap at the joint, repeated assembly and disassembly, no damage to the integrity and the perfection of the plates or the workpieces and the like, can be widely applied to the mutually vertical fixed connection between two plates or the workpieces, can also be applied to the mutual splicing or the connection between two plates or the workpieces and the like, and has wide application range.

Drawings

Fig. 1 is a perspective view with a partial section of the solution according to the invention.

Fig. 2 is a schematic view of an embodiment of the present invention with a partially cut-away, disassembled perspective structure.

Fig. 3 is a schematic perspective view of a second embodiment of the present invention.

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

Fig. 5 is a disassembled perspective view of the second embodiment of the present invention.

Fig. 6 is a schematic perspective view of a third embodiment of the present invention.

Fig. 7 is one of schematic cross-sectional structural diagrams of a third aspect of the present invention.

Fig. 8 is a disassembled perspective view of the third embodiment of the present invention.

Fig. 9 is a second schematic cross-sectional view of a third embodiment of the present invention.

Fig. 10 is a schematic perspective view of a fourth embodiment of the present invention.

Fig. 11 is a schematic perspective view of a fifth embodiment of the present invention.

Fig. 12 is a schematic perspective view of a first embodiment of the latch base according to the present invention.

Fig. 13 is a schematic perspective view of a second embodiment of the latch base of the present invention.

Fig. 14 is a schematic perspective view of a third embodiment of the latch base of the present invention.

Fig. 15 is a partially sectional structural view of the arrangement of the present invention as applied to vertical assembly of two sheets together.

Detailed Description

As shown in fig. 1 to 11, the hidden drawing buckle locking connection structure for connecting plates according to the present invention includes an embedded body 1 with a hollow structure, an installation fixing mechanism 2, a lock pin 3, a lock head 4, a spiral drawing mechanism 5, and other main components.

As shown in fig. 1, 3, 6, 10, and 11, the attachment/fixation mechanism 2 is provided on the fitting body 1.

As shown in fig. 1 and 2, or fig. 5, or fig. 7 to 9, the screw-pulling mechanism 5 includes a screw rotating member 51, a horizontal pulling member 52, and a positioning portion 53, the screw rotating member 51 is vertically mounted in the embedded body 1, and a tip end of the screw rotating member 51 is exposed on a surface of the embedded body 1, that is, as shown in fig. 1, 3, 6, 10, and 11.

As shown in fig. 1 and 2, or fig. 5, or fig. 7 to 9, the horizontal pulling member 52 is provided in the embedded body 1, one end of the horizontal pulling member 52 is connected to the spiral rotating member 51, the other end of the horizontal pulling member 52 is connected to the rear end of the lock pin 3, the locking head 4 is attached to the front end of the lock pin 3, the horizontal pulling member 52 performs the operation of pulling the lock pin 3 and the locking head 4 by the rotation of the spiral rotating member 61, and the positioning portion 53 is provided in the spiral rotating member 51 or the horizontal pulling member 52 so that the horizontal pulling member 52 maintains the pulling operation performed.

As shown in fig. 15, when the installation tool is applied, the embedded body 1 is installed in the cavity 300 of one 200 or the workpiece of the two plates 200 or the workpieces through the installation and fixing mechanism 2, and the side surface of the other 200 or the workpiece is correspondingly provided with the locking hole 100. During connection, as shown in fig. 15, the locking head 4 is inserted into the locking hole 100 and presses down the plate 200 on the right side in fig. 15, the rotating member 51 is screwed by an operating tool, so that the rotating member 51 drives the horizontal pulling member 52 to move, the horizontal pulling member 52 pulls the locking pin 3 to move horizontally, and the locking pin 3 drives the locking head 4 to firmly press against the inner wall of the hole cavity of the locking hole 100, that is, as shown in fig. 15, so that two plates 200 or workpieces are assembled and connected together in a simple, convenient and fast manner in a mutually perpendicular manner in a firmly connecting manner. The movement and change of the lock pin 3 caused by the rotation of the spiral rotating component 51 can be referred to the change of fig. 7 and 9, which causes the lock pin 3 to move and change relative to the length distance during the movement, and the movement and change can form the movement of tensioning one of the plates 200 or the workpieces to the other plate 200 or the workpiece, so that the two plates 200 or the workpieces are fixedly connected and installed in a mutually perpendicular way, and almost no gap appears on the outer surface of the plates.

Furthermore, in the implementation process, people can conveniently provide a plurality of different spiral drawing mechanisms for selection, so that different use requirements of people are met. That is, the differences between the first, second and third aspects of the present invention mainly reflect the differences in the specific structures of the spiral rotating member 51 and the horizontal pulling member 52, the differences in the connections due to the differences in the structures, and the slight differences in the operating principles. The specific scheme structure of the spiral drawing mechanism 5 can be as follows:

the first scheme is that, as shown in fig. 1 and fig. 2, the spiral rotating part 51 is a cylinder, a reducing ring-fastening groove 511 is further provided on the lower surface of the cylinder from large to small, a sleeved upper part 512 is further provided on the upper part of the cylinder, and the positioning part 53 is a ring of one-way outward ring teeth provided on the sleeved upper part 512.

A tool operation hole 513 is further formed at the top end of the upper socket portion 512, and a socket hole 11 is correspondingly formed in the embedded body 1 so that the embedded body 1 can be displayed on the surface of the embedded body 1 after the upper socket portion 512 is mounted. As shown in fig. 2, a ring of unidirectional inner ring teeth 111 is further disposed on the hole wall of the sleeving hole 11, the sleeving upper portion 512 is sleeved in the sleeving hole 11, and the unidirectional outer ring teeth are engaged with the unidirectional inner ring teeth 111, so that the spiral rotating component 51 is fixed after rotating. The one-way outer ring teeth and the one-way inner ring teeth 111 mean that the spiral rotating component 51 can only rotate in one direction, for example, only rotate in a clockwise direction, or only rotate in a counterclockwise direction, so that the spiral rotating component 51 cannot rotate in the reverse direction, and the spiral rotating component 51 is prevented from loosening after the locking pin 3 is tightened by rotating, so that the spiral rotating component 51 is firmly locked, and can not loosen until the manual intervention is successful.

As shown in fig. 2, the horizontal pulling member 52 is a pulling rod, and a fastening head 521 is further disposed at one end of the pulling rod, and the fastening head 521 is fastened in the reducing ring fastening groove 511. The spiral rotating component 51 is set by using the reducing ring buckling groove 511, so that the spiral rotating component can pull the horizontal pulling component 52 to move after rotating towards one direction, and the horizontal pulling component 52 can move towards the rear end direction of the embedded body 1 from the front end of the embedded body 1, and then the lock pin 3 can be driven to move towards the rear end direction of the embedded body 1 from the front end of the embedded body 1, so that the locking head 4 is forced to be firmly pressed against the inner wall of the cavity of the locking hole 100 without being loosened.

In order to keep the unidirectional outer ring teeth and the unidirectional inner ring teeth 111 meshed with each other all the time and not to automatically release, as shown in fig. 1 and 2, a return spring 6 is further provided at the bottom end of the spiral rotating member 51, one end of the return spring 6 is pressed against the bottom end of the spiral rotating member 51, and one end of the return spring 6 is pressed against the inner cavity wall of the embedded body 1. The spiral rotating part 51 is forced to move upwards all the time by the action of the reset elasticity of the reset spring 6, so that the unidirectional outer ring teeth and the unidirectional inner ring teeth 111 are always meshed with each other. When the locking state of the lock pin 3 and the locking head 4 needs to be changed into unlocking, the lock pin 4 can be taken out from the locking hole 100 only by vertically pressing down the spiral rotating component 51 and rotating the spiral rotating component 51 in the opposite direction, so that the one-way outer ring teeth and the one-way inner ring teeth 111 are disengaged from each other, the lock pin 3 is driven to slide towards the front end of the embedded body 1, and unlocking is completed.

On the basis of this solution, in order to further reduce the structural complexity of the present invention and reduce the volume of the whole mechanism, making it more compact, the present invention can integrate the mounting fixture 2 into the spiral rotating component 51, and when designing and processing the spiral rotating component 51, only the height of the upper socket portion 512 of the spiral rotating component 51 is made higher appropriately, so that it constructs a bayonet type mounting fixture under the cooperation of the return spring 6, and when applying, the upper socket portion 512 can be similar to the bayonet 21 in fig. 15. The plate 200 is correspondingly provided with a clamping hole 400, so that when the upper sleeving part 512 enters the cavity 300, the upper sleeving part 512 overcomes the elastic force of the return spring 6, enters the cavity 300 and moves to a preset position, and then the upper sleeving part 512 enters the clamping hole 400 under the elastic force of the return spring 6, so that the whole embedded body 1 is fixedly arranged in the cavity 300 of the plate 200. Since the insert 1 is installed in the plate 200 and then assembled with another plate 200, the upper socket 512 is pressed to allow the insert 1 to enter the cavity 300 of the plate 200 without affecting the movement and function between the screw rotation member 51 and the lock pin 3. This is an embodiment in which the mounting fixture 2 is integrated with the screw extension 5.

In a second alternative, as shown in fig. 3 to 5, the spiral rotating component 51 is an eccentric wheel component, the upper and lower ends of the eccentric wheel component are respectively provided with a sleeved upper portion 512 and a sleeved lower portion 514, and the top end of the sleeved upper portion 512 is also provided with a tool operating hole 513.

The embedded body 1 is correspondingly provided with a sleeve hole 11, the sleeve upper part 512 is sleeved with the sleeve hole 11, the embedded body 1 is also provided with a sleeve shaft hole 12, and the sleeve lower part 514 is sleeved with the sleeve shaft hole 12.

As shown in fig. 5, the horizontal pulling member 52 is a bracket body, and the bracket body is further provided with an eccentric shaft hole 522 adapted to be sleeved with an eccentric wheel member, and the eccentric wheel member is sleeved in the eccentric shaft hole 522. The positioning part 53 is a tilting tail integrally formed on the rear end of the bracket body, and the rear end of the embedded body 1 is further provided with a positioning hole 13 for the tilting tail to penetrate through.

The second scheme is that the interaction between the eccentric shaft hole 522 and the eccentric wheel component is utilized, after the eccentric wheel component makes spiral motion, the bracket body can be driven to move from the front end of the embedded body 1 to the rear end of the embedded body 1, and then the lock pin 3 is pulled to make horizontal motion, and the tilting tail part is supported in the positioning hole 13 in a penetrating way, so that the whole eccentric wheel component is lifted upwards and clamped, cannot move and bounce, and the locking effect is realized. The operation and principle are similar to the first solution and will not be described repeatedly.

Similar to the first solution, the fixing mechanism 2 can be integrated into the spiral rotating component 51, and in this case, as shown in fig. 4 and 5, a return spring 6 is further installed at the bottom of the bracket body, and the return spring 6 is sleeved between the lower sleeving part 514 and the axial sleeving hole 12. When designing and processing the spiral rotating component 51, the height of the upper socket portion 512 of the spiral rotating component 51 is made higher appropriately, so that it can be matched with the return spring 6 to construct a fixing mechanism for fixing the bayonet lock, and the operation manner thereof is shown in fig. 15, and the installation principle is the same as the operation manner in the first scheme, and will not be repeated here.

The third is: as shown in fig. 6 to 9, the spiral rotating member 51 is a tapered cylinder, the top surface of the tapered cylinder is further provided with a tool operating hole 513, the positioning portion 53 is an external thread provided on the peripheral side surface of the tapered cylinder, the embedded body 1 is further provided with a vertical screw hole 515, and the tapered cylinder is mounted on the embedded body 1 by screwing the external thread thereof and the vertical screw hole 515, as shown in fig. 7 and 9.

As shown in fig. 7 to 9, the horizontal pulling member 52 is a bracket body, the bracket body is further provided with an insertion hole 523, and the bottom end of the tapered cylinder is inserted into the insertion hole 523. A return spring 7 is arranged between the rear end of the bracket body and the inner cavity wall of the embedded body 1, one end of the return spring 7 is propped against the rear end of the bracket body, the other end of the return spring 7 is propped against the inner cavity wall of the embedded body 1 so as to force the horizontal pulling part 52 to slide and return towards the front end of the embedded body 1, and when the locking state of the locking head 4 is conveniently released, the bracket body can automatically return.

The third scheme is different from the first and second schemes in that when the conical cylinder is adopted to rotate downwards, the third scheme forces the nesting hole 523, the extrusion and poking horizontal pulling component 52 moves from the front end of the embedded body 1 to the rear end of the embedded body 1, and then pulls the lock pin 3 to move, so that the purpose of locking the locking head 4 is realized, and the state change from fig. 7 to fig. 9 can be intuitively obtained. And the external thread is used as the positioning component 52 to prevent the back loosening phenomenon, thereby realizing the locking effect. The operation and principle are similar to the first and second schemes, and will not be described repeatedly.

On the basis of the third solution, in order to further reduce the structural complexity of the present invention and reduce the volume of the whole mechanism, making it more compact, the present invention may also integrate the mounting and fixing mechanism 2 with the spiral rotating part 51. At this time, as shown in fig. 7 and 8, a bayonet pin 21 and a return spring 6 need to be added, the embedded body 1 is further provided with a bayonet pin hole 14, the return spring 6 is installed in the embedded body 1, one end of the return spring 6 abuts against the bottom end of the bayonet pin 21, and the other end of the return spring 6 abuts against the inner cavity wall of the embedded body 1, so that the upper end of the bayonet pin 21 extends out of the embedded body 1 under the action of the return spring 6. The vertical screw hole 515 is opened on the bayonet 21. Meanwhile, the bayonet 21 is provided with a limiting concave part 211 for preventing the bayonet from rotating, and the hole wall of the bayonet hole 14 is provided with a limiting convex part 141, so that the bayonet 21 can only vertically move and cannot rotate under the matching action of the limiting convex part 141 and the limiting concave part 211. At this time, the operation of this detent 21 can also be referred to as shown in fig. 15, and the principle is the same.

In addition to the above-described principle of the screw extension 5, the solution is described in which the mounting fixture 2 can be integrated with the screw extension 5. In order to provide various options for different fixing modes during the application process, so that the scheme of the invention can be suitable for the assembly and connection application of the plates and the plates under various conditions, the installation and fixing mechanism 2 can also be embodied on the embedded body 1 in a form independent from the spiral drawing mechanism 5, and the installation and fixing mechanism also has various implementation forms, specifically as follows:

in a first embodiment, as shown in fig. 11, the fixing means 2 is a fixing lug with a screw hole integrally formed on both sides of the fitting body 1. During installation, the embedded body 1 is embedded in a pre-reserved cavity 300 of the plate 200, the fixing lugs are abutted against the side surfaces of two outer sides of the cavity 300, and screws are locked from screw holes of the fixing lugs for fixing.

In a second implementation form, the mounting and fixing mechanism 2 is composed of a bayonet 21 and a return spring 6, and a limiting ring part 22 is further arranged at the bottom of the bayonet 21. The embedded body 1 is also provided with a clamping pin hole 14. The bayonet 21 is sleeved in the bayonet hole 14, and the limit ring part 22 is abutted against the hole edge of the bayonet hole 14, so that the bayonet 21 is limited on the embedded body 1 without departing from the bayonet hole 14. The reset spring 6 is arranged in the embedded body 1, one end of the reset spring 6 is abutted against the bottom end of the clamping pin 21, the other end of the reset spring 6 is abutted against the inner cavity wall of the embedded body 1, and under the action of the reset spring 6, the upper end of the clamping pin 21 extends out of the embedded body 1. This solution does not provide a specific structural representation, the principle of which is essentially the same as that illustrated in fig. 7 and 8, but is not provided with the screw extension 5 but is provided separately on the installation body 1. Reference may be made to the style presented in fig. 14.

In a third implementation form, as shown in fig. 10, the mounting and fixing mechanism 2 is an extrusion and expansion fixing mechanism, which is composed of a fixed block 24 with an inclined concave surface 241, a movable block 25 with an inclined surface 251, and a bolt 26; the fixing block 24 is fixedly mounted on the side surface of the embedded body 1, and specifically, is mutually fixedly assembled by means of screws and screw holes.

The movable block 25 is embedded in the inclined concave surface 241 of the fixed block 24, the inclined surface 251 of the movable block 25 and the inclined concave surface 241 of the fixed block 24 are mutually conical inclined surfaces with opposite directions, and the inclined surface 251 and the inclined concave surface 241 are arranged in a mutually attached mode. The end surfaces of the fixed block 24 and the movable block 25 are respectively provided with a through hole 242 and a screw hole 252, and the bolt 26 is screwed into the screw hole 252 of the movable block 25 through the through hole 242 of the fixed block 24, so that the movable block 25 moves along the fixed block 24 under the screwing action of the bolt 26.

When the extrusion expansion fixing mechanism and the embedded body 1 are sleeved in the cavity 300 of the plate 200, the bolt 26 is rotated by a tool, the movable block 25 moves along the fixed block 24, the outer side surface of the movable block 25 protrudes outwards by utilizing the conical inclined surfaces of the movable block 25 and the fixed block 24, which are opposite in direction, and the side wall of the cavity 300 of the plate 200 is extruded to form expansion type extrusion force, so that the whole embedded body 1 cannot move and bounce in the cavity 300 of the plate 200, and the purpose of firm installation is achieved. In addition, in order to prevent the slip phenomenon between the outer side surface of the movable block 25 and the side wall of the cavity 300 of the plate material 200, an anti-slip texture 253 is further provided on the outer side surface of the movable block 25.

Of course, the fixing block 24 may be integrally formed on the side surface of the insert 1, similar to that shown in fig. 13.

In order to further improve the locking firmness of the locking head 4 to the locking hole 100 and prevent the locking head from falling off, as shown in fig. 7 and 9, a clamping ring groove 8 is formed between the inner side of the locking head 4 and the front end of the lock pin 3, and a tightening rubber ring 9 is further sleeved on the clamping ring groove 8, wherein the tightening rubber ring 9 can increase the resistance and the clamping force, so that the connection is more reliable and safer.

The three mounting and fixing manners listed above, which are only the embodiments of the mounting and fixing mechanism 2 considered by the applicant to be preferred, are not exhaustive of the specific scheme structures of the mounting and fixing mechanism 2, and the applicant considers that any scheme structure capable of facilitating the mounting and fixing of the present invention on a plate or a workpiece can be used in combination with the hidden type pull-out snap-lock connection structure of the present invention to construct a specific embodiment, which belongs to the protection scope of the present invention and must be implemented by the permission of the applicant.

On the basis of the foregoing, in order to further widen the application range of the technical solution of the present invention in practice, as shown in fig. 12 to 14, the present invention further includes some fastening seats 10 adapted to the lock pin 3 and the lock head 4, and the fastening seats 10 are applicable to some situations where it is inconvenient to directly provide the fastening lock hole 100 on the plate or the workpiece. The front side surface of the lock catch seat 10 is further provided with a buckle lock hole 100 for embedding the lock catch head 4 into the buckle, the buckle lock hole 100 is composed of an upper through hole 101, a lower through hole 102 and a rear hole cavity 103, and the aperture of the upper through hole 101 is larger than that of the lower through hole 102. The lock catch seat 10 is also provided with a mounting and fixing mechanism 2. In the specific implementation, the fastening seat 10 may have three different implementation structures according to different fixing manners: for example, as shown in fig. 14, the fastening seat 10 includes a nest, a fastening lock hole 100 formed at the front end of the nest, and a mounting and fixing mechanism 2 including a bayonet 21 and a return spring 6 provided on the nest, and the principle and the use of the mounting and fixing mechanism 2 are the same as those of the mounting and fixing mechanism 2 on the insert 1, and will not be described repeatedly. For example, as shown in fig. 13, the fastening seat 10 includes a sleeve body, an extrusion/expansion fixing mechanism provided on both sides of the sleeve body, and a fastening hole 100 provided at a front end of the sleeve body. The compression-expansion fixing mechanism here is also composed of the fixed block 24 with the inclined concave surface 241, the movable block 25 with the inclined surface 251, and the bolt 26, and its principle and usage are the same as the compression-expansion fixing mechanism on the embedded body 1 described above, and will not be described again here. Alternatively, for example, as shown in fig. 12, the fastening seat 10 is composed of a nest, fixing lugs with screw holes integrally formed on both sides of the nest, and a fastening lock hole 100 formed at the front end of the nest, and the use and principle of the fastening seat 10 are the same as those of the solution shown in fig. 11, and will not be described repeatedly herein.

Claims

1. The utility model provides a hidden pull buckle locking connection structure that is used for connecting between panel which characterized in that: comprises an embedded body (1) with a hollow structure, an installation fixing mechanism (2), a lock pin (3), a locking head (4) and a spiral drawing mechanism (5), wherein

The mounting and fixing mechanism (2) is arranged on the embedded body (1);

the spiral drawing mechanism (5) comprises a spiral rotating component (51), a horizontal drawing component (52) and a positioning part (53), the spiral rotating component (51) is vertically installed in the embedded body (1), and the top end of the spiral rotating component (51) is exposed on the surface of the embedded body (1);

the horizontal pulling component (52) is arranged in the embedded body (1), one end of the horizontal pulling component (52) is connected with the spiral rotating component (51), the other end of the horizontal pulling component (52) is connected with the rear end of the lock pin (3), the locking head (4) is arranged at the front end of the lock pin (3), the horizontal pulling component (52) forms the action of drawing the lock pin (3) and the locking head (4) under the rotation driving of the spiral rotating component (61), and the positioning part (53) is arranged on the spiral rotating component (51) or the horizontal pulling component (52) so as to enable the horizontal pulling component (52) to keep the formed drawing action unchanged.

2. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: the spiral rotating part (51) is a cylinder, a reducing ring buckling groove (511) from large to small is further formed in the lower portion of the surface of the cylinder, a sleeved upper portion (512) is further formed in the upper portion of the cylinder, and the positioning portion (53) is a ring of one-way outward ring teeth formed in the sleeved upper portion (512);

a tool operation hole (513) is further formed in the top end of the sleeved upper portion (512), a sleeving hole (11) is correspondingly formed in the embedded body (1), a ring of unidirectional inner ring teeth (111) are further arranged on the wall of the sleeving hole (11), the sleeved upper portion (512) is sleeved in the sleeving hole (11), and the unidirectional outer ring teeth are meshed with the unidirectional inner ring teeth (111) so that the spiral rotating component (51) can be positioned and fixed after rotating;

the horizontal pulling part (52) is a pulling rod, one end of the pulling rod is also provided with a buckle joint (521), and the buckle joint (521) is buckled in the reducing ring buckle groove (511);

and a return spring (6) is also arranged at the bottom end of the spiral rotating component (51), one end of the return spring (6) is propped against the bottom end of the spiral rotating component (51), and one end of the return spring (6) is propped against the inner cavity wall of the embedded body (1).

3. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: the spiral rotating component (51) is an eccentric wheel component, the upper end and the lower end of the eccentric wheel component are respectively provided with a sleeved upper part (512) and a sleeved lower part (514), and the top end of the sleeved upper part (512) is provided with a tool operating hole (513);

the embedded body (1) is correspondingly provided with a sleeving hole (11), the sleeving upper part (512) is sleeved with the sleeving hole (11), the embedded body (1) is also provided with a sleeving shaft hole (12), and the sleeving lower part (514) is sleeved with the sleeving shaft hole (12);

the horizontal pulling component (52) is a bracket body, the bracket body is also provided with an eccentric shaft hole (522), and the eccentric wheel component is sleeved in the eccentric shaft hole (522); the positioning part (53) is a tilting tail part integrally processed on the rear end of the bracket body, and the rear end of the embedded body (1) is also provided with a positioning hole (13) for the tilting tail part to penetrate through.

4. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 3, wherein: the bottom of the bracket body is also provided with a return spring (6), and the return spring (6) is sleeved between the sleeved lower part (514) and the sleeved shaft hole (12).

5. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: the spiral rotating component (51) is a conical cylinder, a tool operating hole (513) is further formed in the top surface of the conical cylinder, the positioning portion (53) is an external thread which is further formed in the peripheral side surface of the conical cylinder, a vertical screw hole (515) is further formed in the embedded body (1), and the conical cylinder is mounted on the embedded body (1) through the screwing of the external thread and the vertical screw hole (515);

the horizontal pulling part (52) is a bracket body, the bracket body is also provided with an embedding hole (523), and the bottom end of the conical cylinder is sleeved on the embedding hole (523) in a hollow way; a return spring (7) is further arranged between the rear end of the support body and the inner cavity wall of the embedded body (1), one end of the return spring (7) is abutted against the rear end of the support body, and the other end of the return spring (7) is abutted against the inner cavity wall of the embedded body (1) so as to force the horizontal pulling component (52) to slide and return towards the front end of the embedded body (1).

6. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: the installation and fixing mechanism (2) is a fixing lug with a screw hole which is integrally processed at two sides of the embedded body (1).

7. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: the mounting and fixing mechanism (2) is composed of a bayonet lock (21) and a return spring (6), and the bottom of the bayonet lock (21) is also provided with a limit ring part (22);

the embedded body (1) is also provided with a clamping pin hole (14);

the bayonet lock (21) is sleeved in the bayonet lock hole (14), and the limit ring part (22) is abutted against the hole edge of the bayonet lock hole (14) so that the bayonet lock (21) is limited on the embedded body (1) without departing from the bayonet lock hole (14);

the reset spring (6) is installed in the embedded body (1), one end of the reset spring (6) is abutted against the bottom end of the clamping pin (21), the other end of the reset spring (6) is abutted against the inner cavity wall of the embedded body (1), and under the action of the reset spring (6), the upper end of the clamping pin (21) extends out of the embedded body (1).

8. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein:

the mounting and fixing mechanism (2) is an extrusion and expansion fixing mechanism which is composed of a fixed block (24) with an inclined concave surface (241), a movable block (25) with an inclined surface (251) and a bolt (26); the fixed block (24) is fixedly arranged on the side surface of the embedded body (1);

the movable block (25) is embedded in an inclined concave surface (241) of the fixed block (24), an inclined surface (251) of the movable block (25) and the inclined concave surface (241) of the fixed block (24) are conical inclined surfaces with opposite directions, and the inclined surface (251) and the inclined concave surface (241) are attached together;

the end surfaces of the fixed block (24) and the movable block (25) are respectively provided with a through hole (242) and a screw hole (252), and the bolt (26) passes through the through hole (242) of the fixed block (24) and is screwed into the screw hole (252) of the movable block (25), so that the movable block (25) moves along the fixed block (24) under the screwing action of the bolt (26);

the outer side surface of the movable block (25) is also provided with anti-skid textures (253).

9. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: a clamping ring groove (8) is formed between the inner side of the clamping lock head (4) and the front end of the lock pin (3), and a compact rubber ring (9) is further sleeved on the clamping ring groove (8).

10. The hidden type pull snap lock connection structure for connection between boards as claimed in claim 1, wherein: also comprises a lock catch seat (10), wherein

The front side surface of the lock catch seat (10) is also provided with a buckle lock hole (100) for the lock catch (4) to be embedded into and hold the buckle, the buckle lock hole (100) is composed of an upper through hole (101), a lower through hole (102) and a rear hole cavity (103), and the aperture of the upper through hole (101) is larger than that of the lower through hole (102);

the lock catch seat (10) is also provided with a mounting and fixing mechanism (2).