CN112303071A

CN112303071A - A hide lever locking connection structure for connecting between panel

Info

Publication number: CN112303071A
Application number: CN201910713867.4A
Authority: CN
Inventors: 彭志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2021-02-02

Abstract

The invention relates to a hidden lever type locking connection structure for connection between plates, which comprises an embedded body with a hollow structure, a mounting and fixing mechanism, a lock pin, a lever mechanism and a buckling and locking block, wherein the lever mechanism comprises a lever part and a spiral tilting part, the lever part can be arranged in the embedded body in an up-and-down swinging manner, the rear end of the lock pin penetrates through the embedded body and then is connected with the front end of the lever part, the buckling and locking block is arranged on the front end of the lock pin, the spiral tilting part can be rotationally and vertically arranged on the embedded body above the rear end of the lever part in a rotating manner, when the spiral tilting part moves downwards, the bottom end of the spiral tilting part is pressed on the rear end of the lever part, so that the lever part drives the lock pin and the buckling and locking block to perform buckling and locking action, and the mounting and fixing mechanism is arranged on the embedded body. 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

A hide lever locking connection structure for connecting between panel

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 lever type locking connection structure for connecting plates, which adopts main components such as an embedded body, an installation and fixing mechanism, a lock pin, a lever mechanism, a locking block and the like to construct a simple, convenient and quick locking connection structure which is used for connecting plates firmly; when the device is used, the embedded body is arranged in the inner cavity of one of two plates or workpieces through the mounting and fixing mechanism, the side surface of the other plate or workpiece is correspondingly provided with a buckling hole, when the device is connected, the buckling block is sleeved in the buckling hole in a penetrating way, and the spiral tilting part of the lever mechanism is rotated by using an operating tool, so that the spiral tilting part is pressed on the lever part of the lever mechanism, the lever part drives the lock pin to do lever motion, and the buckling block is firmly pressed and abutted against the inner wall of the hole cavity of the buckling hole, so that the two plates or workpieces are assembled and connected together in a mutually vertical mode in a simple, convenient and quick way with firm connection; in addition, the lever jacking force generated by the rotation of the spiral tilting component is converted into the tensioning force for pressing and leaning of the buckling lock block, so that the phenomena of loosening and poor buckling lock cannot occur under the action of external force, and the phenomena of loosening and poor connection of two plates or workpieces are possible only when the pore cavity wall collapses because the pore cavity wall of the buckling hole is broken unless the external force acts excessively; moreover, under the action of the lever mechanism, the lock pin moves and changes relative to the 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 perpendicular, 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 lever type locking connection structure for connection between plates is characterized by comprising an embedded body with a hollow structure, a mounting and fixing mechanism, a lock pin, a lever mechanism and a buckling and locking block, wherein the lever mechanism comprises a lever component and a spiral tilting component, the lever component can be mounted in the embedded body in an up-and-down swinging manner, the rear end of the lock pin penetrates through the embedded body and then is connected with the front end of the lever component, the buckling and locking block is mounted on the front end of the lock pin, the spiral tilting component can be rotatably and vertically screwed on the embedded body above the rear end of the lever component, and when the spiral tilting component is rotated to move downwards, the bottom end of the spiral tilting component is pressed against the rear end of the lever component, so that the lever component drives the lock pin and the buckling and locking block to perform buckling and locking actions; the installation fixing mechanism is arranged on the embedded body.

Furthermore, the top surface of the front end of the lever component is provided with an upper inclined surface inclined from the center of the lever component to the direction of the front end of the lever component, and the bottom surface of the rear end of the lever component is also provided with a lower inclined surface inclined from the center of the lever component to the direction of the rear end of the lever component.

Still further, the side surfaces of the two sides of the lever component are respectively provided with a pin shaft, the embedded body is internally provided with a cavity for accommodating the lever component, the cavity walls of the two sides of the cavity are respectively provided with a pin shaft hole, and the lever component is arranged in the embedded body in a way of being capable of swinging up and down through the pin shaft of the lever component and the pin shaft hole.

Furthermore, the spiral tilting component is a cylindrical body, the top surface of the cylindrical body is also provided with an inner hexagonal screwdriver hole, the side surfaces of the periphery of the cylindrical body are also provided with external threads, the embedded body is also provided with a vertical screw hole penetrating through the cavity, and the spiral tilting component is installed on the embedded body through the mutual screwing of the external threads and the vertical screw hole.

Still further, a transverse screw hole is formed in the front end of the lever component, a screw portion is further formed in the rear end of the lock pin, and the lock pin is connected with the lever component through the screw portion and the transverse screw hole in a screwing mode.

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 lever mechanism, the lock catch block and the like to construct the lock catch type connecting mechanism which is simple, convenient and quick to apply and is firmly connected. When the installation structure is used, the embedded body is installed in the inner cavity of one of two plates or workpieces through the installation fixing mechanism, the side face of the other plate or workpiece is correspondingly provided with a buckling hole, when the installation structure is connected, the buckling block penetrates through the buckling hole, the spiral tilting part of the lever mechanism is rotated by using an operating tool, the spiral tilting part is pressed against the lever part of the lever mechanism, the lever part drives the lock pin to do lever motion, and the buckling block is firmly pressed against the inner wall of the hole cavity of the buckling hole, so that the two plates or workpieces are assembled and connected together in a mutually vertical mode in a simple, convenient and quick mode with firm connection. In addition, the lever jacking force generated by the rotation of the spiral tilting component is converted into the tensioning force for pressing and leaning the buckling lock block, so that the phenomena of loosening and poor buckling lock cannot occur under the action of external force, and the phenomena of loosening and poor connection of two plates or workpieces can occur only when the hole cavity wall is collapsed because the hole cavity wall of the buckling hole is pulled and broken unless the external force acts excessively. And under the action of the lever 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 vertically and 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 schematic cross-sectional structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a second embodiment of the present invention.

Fig. 3 is a schematic perspective view of a first embodiment of the present invention in a disassembled state.

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

Fig. 5 is a schematic sectional structure diagram of a second embodiment of the present invention.

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

FIG. 7 is a side view of the locking pin of the present invention assembled with a locking block.

Fig. 8 is a schematic structural diagram of the solution of the present invention when two plates are assembled and connected perpendicularly to each other.

Fig. 9, 10 and 11 show additional accessories of the invention, which can be used with a lock pin and a locking block to widen the application range of the scheme of the invention.

Detailed Description

As shown in fig. 1 to 8, the hidden lever type 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 lever mechanism 4, a locking block 5, and other main components.

As shown in fig. 1 and 3, the lever mechanism 4 includes a lever member 41 and a tilting member 42, the lever member 41 is mounted in the embedded body 1 to be capable of swinging up and down, and a rear end of the lock pin 3 passes through the embedded body 1 and is connected to a front end of the lever member 41. Specifically, as shown in fig. 3, a through hole 14 is formed at the front end of the embedded body 1, and the through hole 14 is generally made into a vertically-long hole, so that the lock pin 3 does not form an obstacle during the movement. The lock pin 3 passes through the hole 14 and then is connected with the front end of the lever part 41.

As shown in fig. 7 or 3, the locking piece 5 is mounted on the front end of the locking pin 3 so as to be capable of performing a locking action in accordance with the movement of the locking pin 3.

As shown in fig. 1 or fig. 5, the tilting screw member 42 is rotatably and vertically screwed on the embedded body 1 above the rear end of the lever member 41, and when the tilting screw member 42 is screwed to move downward, the bottom end of the tilting screw member 42 presses against the rear end of the lever member 41, so that the lever member 41 drives the lock pin 3 and the lock block 5 to perform a locking action, that is, as shown in fig. 2 or fig. 8.

As shown in fig. 1, 4, or 6, the attachment/fixation mechanism 2 is provided on the insert 1.

As shown in fig. 8, in application, the fitting body 1 is mounted in the cavity 200 of one of the two plate materials 100 or the workpiece by the mounting and fixing mechanism 2, and the side surface of the other plate material 100 or the workpiece is correspondingly provided with a fastening hole 300. During connection, as shown in fig. 8, the locking block 5 is inserted into the fastening hole 300, and the operation tool is used to rotate the spiral tilting component 42 of the lever mechanism 4, so that the spiral tilting component 42 is pressed against the lever component 41 of the lever mechanism 4, and the lever component 41 drives the lock pin 3 to perform lever motion, so that the locking block 5 is pressed against the inner wall of the hole cavity of the fastening hole 300, as shown in fig. 8, thereby realizing the simple, convenient and fast assembly and connection of two plates 100 or workpieces in a mutually perpendicular manner. The movement and change of the locking pin 3 caused by the lever mechanism 4 in the lever movement can be referred to the change of fig. 1 and 2, which causes the locking pin 3 to move and change in relative length distance during the movement, and the movement and change can form a movement of tensioning one of the plates 100 or the workpieces to the other plate 100 or the workpiece, so that the two plates 100 or the workpieces are vertically and fixedly connected and tightly installed, and almost no gap appears on the outer surface of the plate.

In order to further optimize the structure of the lever member 41, so that the whole volume is more compact, the structure is simpler, and the occupied space is smaller, as shown in fig. 1 and 3, the top surface of the front end of the lever member 41 is provided with an upper inclined surface 411 inclined from the center of the lever member 41 to the direction of the front end thereof, and the bottom surface of the rear end of the lever member 41 is further provided with a lower inclined surface 412 inclined from the center of the lever member 41 to the direction of the rear end thereof. In addition, in order to enable the lever member 41 to be easily and effectively installed in the inner cavity of the insertion body 1, as shown in fig. 3, pin shafts 413 are respectively provided on both side surfaces of the lever member 41, a cavity 11 for accommodating the lever member 41 is provided in the insertion body 1, pin shaft holes 12 are respectively provided on both side cavity walls of the cavity 11, and the lever member 41 is installed in the insertion body 1 so as to be swingable up and down by fitting the pin shafts 413 thereof to the pin shaft holes 12. The pin 413 can be separately processed and then sleeved on the lever component 41; the lever member 41 may be integrally formed directly.

In the same way, in order to make the tilting member 42 have simple structure, exquisite volume and convenient assembly, as shown in fig. 3, the tilting member 42 is a cylindrical body, the top surface of the cylindrical body is further provided with an inner hexagonal screwdriver hole 421, the peripheral side surface of the cylindrical body is further provided with an external thread 422, as shown in fig. 5, the embedded body 1 is further provided with a vertical screw hole 6 penetrating through to the cavity 11, and the tilting member 42 is installed on the embedded body 1 by screwing the external thread 422 and the vertical screw hole 6.

In order to keep the lock pin 3 in a horizontal balanced state before the tilting screw 42 does not press the actuating lever 41, so that the lock pin can be aligned with the fastening hole 300 of the plate 100 and can enter the fastening hole 300 when in use, as shown in fig. 1 to 3 or 5, the rear end of the actuating lever 41 is further provided with a lever returning mechanism 8 consisting of a tail portion 81 and an elastic member 82, one end of the elastic member 82 abuts against the bottom end of the tail portion 81, and one end of the elastic member 82 abuts against the bottom of the inner cavity of the embedded body 1. The elastic member 82 may be a spring or a spring plate. If a spring is adopted, a spring pin 811 or a socket cavity hole is arranged at the bottom end of the tail part 81 to position and limit the spring so as to prevent the spring from loosening and deviating.

In addition to the above, in order to further optimize the assembly structure of the present invention, the parts of the assembly structure are easy to process and easy to assemble, as shown in fig. 3, the front end of the lever member 41 is further provided with a transverse screw hole 414, the rear end of the lock pin 3 is further provided with a screw portion 31, and the lock pin 3 is connected with the lever member 41 by screwing the screw portion 31 and the transverse screw hole 414.

In order to further improve the locking firmness of the locking block 5, as shown in fig. 1 or fig. 2, the inner side surface of the locking block 5 is further provided with anti-slip insections 51. Or as shown in fig. 7, the inner side surface of the locking block 5 is an inclined surface, and the inclined surface is further provided with anti-skid insections 51. With the structure shown in fig. 7, all the anti-slip insections 51 can be occluded on the cavity wall of the fastening hole 300, and the occlusion is firmer.

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 under various different conditions, the installation and fixing mechanism 2 has various implementation forms, specifically as follows:

first, as shown in fig. 6, 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 cavity 200 reserved in advance on the plate 100, the fixing lugs abut against the side surfaces of two outer sides of the cavity 200, and screws are locked from screw holes of the fixing lugs for fixing.

Secondly, as shown in fig. 1 to 3 and 8, the mounting and fixing mechanism 2 is composed of a bayonet 21 and a return spring 22, and a limit ring part 23 is further arranged at the bottom of the bayonet 21. The embedded body 1 is further provided with a clamping pin hole 13, the clamping pin 21 is sleeved in the clamping pin hole 13, and the limit ring part 23 abuts against the hole edge of the clamping pin hole 13, so that the clamping pin 21 is limited on the embedded body 1 without departing from the clamping pin hole 13, namely as shown in fig. 1 or fig. 2. The reset spring 22 is embedded in the embedded body 1, one end of the reset spring 22 abuts against the bottom end of the clamping pin 21, the other end of the reset spring 22 abuts against the inner cavity wall of the embedded body 1, and under the action of the reset spring 22, the upper end of the clamping pin 21 extends out of the embedded body 1.

When the scheme is adopted, in order to make the structure of the invention more compact and the volume smaller, as shown in fig. 1 to fig. 3, the invention can adopt that the vertical screw hole 6 is arranged on the bayonet 21, meanwhile, the limit concave part 211 is arranged on the periphery of the bayonet 21, the limit convex part 131 is correspondingly arranged on the hole wall of the bayonet hole 13 of the embedded body 1, and the bayonet 21 can only vertically move up and down and can not rotate through the embedded position of the limit concave part 211 and the limit convex part 131. When the rotorwrap part 42 is screwed into the vertical screw hole 6 of the bayonet 21, the bayonet 21 will not rotate, and the independent action of the rotorwrap part 42 is realized.

Three types of fixing means 2 are, as shown in fig. 4, a compression/expansion fixing means including a fixed block 24 having a slant concave surface 241, a movable block 25 having a slant surface 251, and a bolt 26. The fixing block 24 is fixedly mounted on the side surface of the embedded body 1. Specifically, the fixing block 24 is fixed to the side surface of the fitting body 1 by a screw and screw hole structure. Of course, the fixing block 24 may be integrally formed on the side surface of the insertion body 1.

As shown in fig. 4, 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 tapered 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 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 200 of the plate 100, 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 outer side surface of the movable block 25 extrudes to the side wall of the cavity 200 of the plate 100 to form expansion type extrusion force, so that the whole embedded body 1 cannot move and bounce in the cavity 200 of the plate 100, 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 200 of the plate material 100, an anti-slip texture 253 is further provided on the outer side surface of the movable block 25.

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 lever type locking 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. 9 to 11, the present invention further includes some fastening seats 10 adapted to the lock pin 3 and the fastening block 5, and the fastening seats 10 are applicable to some situations where it is inconvenient to directly form fastening holes 300 on a plate or a workpiece. 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. 9, the fastening seat 10 includes a sleeve body, a fastening hole 300 formed at the front end of the sleeve body, and a fixing mechanism 2 including a bayonet 21 and a return spring 22 provided on the sleeve body, and the principle and the use of the fixing mechanism 2 are the same as those of the fixing mechanism 2 on the insertion body 1, and will not be described repeatedly. For example, as shown in fig. 10, the fastening seat 10 is composed of a nest, an extrusion/expansion fixing mechanism provided on both sides of the nest, and a fastening hole 300 provided at the front end of the nest. 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. 11, the fastening seat 10 is composed of a nest, a fixing lug with a screw hole integrally formed on both sides of the nest, and a fastening hole 300 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 scheme shown in fig. 6, and will not be described repeatedly herein.

In order to facilitate the processing and production of the embedded body 1, as shown in fig. 3, the embedded body 1 may include a bottom cavity component 20, an intermediate component 30, and a top cover component 40, wherein a locking portion 201 is further disposed on the bottom cavity component 20, a locking hole 401 is correspondingly disposed on the top cover component 40, the bottom cavity component 20 and the top cover component 40 are assembled together by the locking portion 201 and the locking hole 401, and thus, the cavity 11 is formed, forming a hollow structure. The intermediate member 30 is mounted in the cavity 11 and is fixed by locking screws from the top cover member 40. In order to reduce the weight of the intermediate member 30, the intermediate member 30 is processed into a hollow structure, a nesting upper hole 301 for nesting the detent 21 and a nesting lower hole 302 for the bottom end of the tilting member 42 to pass through are correspondingly processed on the intermediate member 30, and as shown in fig. 1 or fig. 2, the tilting member 42 and the detent 21 are correspondingly nested on the nesting lower hole 302 and the nesting upper hole 301. It should be particularly noted that the descriptions of left, right, up, down, front, back, etc. directions related to the present invention are made according to the placing directions shown in fig. 1 to 7, and the descriptions of these directions added to the present invention are mainly used to better explain the technical solutions of the present invention to those skilled in the art, and these directional terms are not used to limit the protection of the present invention.

Claims

1. The utility model provides a hide lever locking connection structure 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 lever mechanism (4) and a locking block (5), wherein

The lever mechanism (4) comprises a lever component (41) and a spiral tilting component (42), the lever component (41) can be arranged in the embedded body (1) in an up-and-down swinging mode, the rear end of the lock pin (3) penetrates through the embedded body (1) and then is connected with the front end of the lever component (41), the buckling and locking block (5) is arranged at the front end of the lock pin (3), the spiral tilting component (42) can be vertically and rotatably arranged on the embedded body (1) above the rear end of the lever component (41), and when the spiral tilting component (42) is rotated to move downwards, the bottom end of the spiral tilting component (42) is pressed against the rear end of the lever component (41), so that the lever component (41) drives the lock pin (3) and the buckling and locking block (5) to perform buckling and locking actions;

the installation fixing mechanism (2) is arranged on the embedded body (1).

2. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 1, wherein: the top surface of the front end of the lever component (41) is provided with an upper inclined surface (411) inclined from the center of the lever component (41) to the direction of the front end, and the bottom surface of the rear end of the lever component (41) is also provided with a lower inclined surface (412) inclined from the center of the lever component (41) to the direction of the rear end.

3. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 2, wherein: the side surfaces of two sides of the lever component (41) are respectively provided with a pin shaft (413), the embedded body (1) is internally provided with a cavity (11) for accommodating the lever component (41), the cavity walls of two sides of the cavity (11) are respectively provided with a pin shaft hole (12), and the lever component (41) is arranged in the embedded body (1) in an up-and-down swinging manner by sleeving the pin shaft (413) of the lever component with the pin shaft hole (12).

4. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 3, wherein: the spiral tilting component (42) is a cylindrical body, an inner hexagonal screwdriver hole (421) is further formed in the top surface of the cylindrical body, external threads (422) are further formed in the side face of the periphery of the cylindrical body, a vertical screw hole (6) penetrating through the cavity (11) is further formed in the embedded body (1), and the spiral tilting component (42) is installed on the embedded body (1) through the mutual screwing of the external threads (422) and the vertical screw hole (6).

5. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 2, wherein: the front end of the lever component (41) is also provided with a transverse screw hole (414), the rear end of the lock pin (3) is also provided with a screw part (31), and the lock pin (3) is connected with the lever component (41) through the screwing connection of the screw part (31) and the transverse screw hole (414).

6. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 1, wherein: the rear end of the lever component (41) is also provided with a lever resetting mechanism (8) consisting of a tail part (81) and an elastic component (82), one end of the elastic component (82) is propped against the bottom end of the tail part (81), and one end of the elastic component (82) is propped against the inner cavity bottom of the embedded body (1).

7. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 1, wherein: the inner side surface of the locking block (5) is also provided with anti-skid insections (51); or the inner side surface of the locking block (5) is an inclined surface, and anti-skidding insections (51) are further arranged on the inclined surface.

8. A concealed lever type locking connection structure for connection between plate materials 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).

9. A concealed lever type locking connection structure for connection between plate materials as claimed in claim 1, wherein: the mounting and fixing mechanism (2) is composed of a bayonet lock (21) and a return spring (22), and the bottom of the bayonet lock (21) is also provided with a limit ring part (23);

the embedded body (1) is also provided with a clamping pin hole (13);

the bayonet lock (21) is sleeved in the bayonet lock hole (13), and the limit ring part (23) is abutted against the hole edge of the bayonet lock hole (13) so that the bayonet lock (21) is limited on the embedded body (1) without departing from the bayonet lock hole (13);

the reset spring (22) is embedded in the embedded body (1), one end of the reset spring (22) is abutted against the bottom end of the clamping pin (21), the other end of the reset spring (22) is abutted against the inner cavity wall of the embedded body (1), and under the action of the reset spring (22), the upper end of the clamping pin (21) extends out of the embedded body (1).

10. A concealed lever type locking connection structure for connection between plate materials 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 faces 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) penetrates 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).