CN218670081U

CN218670081U - Elastic locking structure

Info

Publication number: CN218670081U
Application number: CN202223255570.4U
Authority: CN
Inventors: 冯劲龙
Original assignee: Guowo Engineering Co ltd
Current assignee: Guowo Engineering Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-03-21
Anticipated expiration: 2032-12-05

Abstract

The utility model belongs to the technical field of workpiece fixing parts, in particular to an elastic locking structure, which comprises a locking nail with a cap, a pressing locking seat and an elastic locking piece; the lock groove with the cap lock comprises a vertical groove section and an arc groove section; the elastic locking piece is provided with a rod-shaped rod body, and the rod body can extend into the locking groove; the elastic locking piece can be bent and deformed and generates elastic potential energy; according to the scheme, the elastic locking piece is driven to deform by utilizing the rotation of the arc groove section, elastic potential energy is accumulated in the elastic locking piece, and when the elastic locking piece is arranged at the positioning position, the elastic locking piece can be tensioned to the locking nail with the cap, so that the first locking workpiece and the second locking workpiece are clamped by utilizing the matching of the abutting locking seat and the top cap, and when more locking workpieces are arranged between the first locking workpiece and the second locking workpiece, the locking nail with the cap penetrates and is tensioned; the rotation amount of the elastic locking piece is less than 180 degrees, so that the elastic locking piece can be clamped into or separated from the locking groove, and the disassembly is more convenient.

Description

Elastic locking structure

Technical Field

The utility model belongs to the technical field of the fixed spare part of work piece, concretely relates to elasticity locking structure.

Background

In the connection structure with motor frame and slide apron, often fasten fixedly through the bolt, but this kind of mode through bolt-up is fixed, often has to dismantle the degree of difficulty big to be the rigidity between the fixed part, can not cushion the vibration. However, in the existing connection condition, a rigid connection mode is not needed, so that an elastic connection mode and an elastic structure are needed to be designed, elastic buffering is realized, and the disassembly difficulty can be reduced if necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the bolt structure can not meet the elastic connection working condition, the scheme provides an elastic locking structure.

The utility model discloses the technical scheme who adopts does:

an elastic locking structure comprises a locking nail with a cap, a pressing locking seat and an elastic locking piece;

one end of the lock nail with the cap is coaxially provided with a tubular section, and the other end of the lock nail with the cap is provided with a nail cap; a J-shaped locking groove is formed in the side wall of the tubular section; the locking groove comprises a vertical groove section and an arc groove section which are communicated with each other, an unlocking position is formed at the intersection part of the arc groove section and the vertical groove section, and a locking position is formed at one end of the arc groove section, which is far away from the vertical groove section; a balance position is formed in the arc groove section between the unlocking position and the locking position; the distance between the balance position and the nail cap is smaller than that between the unlocking position and the nail cap;

the elastic locking piece is provided with a rod-shaped rod body, and the rod body can extend into the locking groove; the elastic locking piece can be bent and deformed and generates elastic potential energy; the elastic locking piece can move from an unlocking position to a locking position through a balance position along with the forward rotation of the locking nail with the cap; along with the reverse rotation of the lock pin with the cap, the elastic lock piece can be self-locked and positioned and moves to an unlocking position through a balance position;

the pressing lock seat is provided with two mounting parts which are respectively used for mounting and fixing two ends of the elastic lock piece, and a space for the lock nail with the cap to penetrate and rotate is formed between the two mounting parts; distance between two installation positions should be less than the length of elasticity latch fitting to the both ends of elasticity latch fitting stretch out partly from installation position department respectively, thereby guarantee the deformation allowance of elasticity latch fitting at the in-process that warp, make the elasticity latch fitting warp the back, the both ends of elasticity latch fitting can not take off in the installation position yet.

When two or more locking workpieces are connected, the locking nail with the cap penetrates through all the locking workpieces, and the nail cap and the abutting locking seat respectively abut against the two locking workpieces on the outermost side.

Above structure is when using, because this arc groove section distributes along the circumference of taking the cap staple, consequently, at the rotatory in-process of taking the cap staple, can utilize the rotation of arc groove section to drive the elasticity latch fitting deformation, and make the elasticity latch fitting accumulate elastic potential energy, and the elasticity latch fitting can guarantee the take-up of elasticity latch fitting to taking the cap staple when locating the position department, thereby utilize to support to press the lock seat and the hood cooperation to press from both sides tight first position locking work piece and second position locking work piece, when having more position locking work pieces between first position locking work piece and the second position locking work piece, also penetrate and take-up by taking the cap staple equally.

As a complement or alternative to the above-described elastic locking structure: the distance between the unlocking position and the locking position in the axial direction of the lock nail with the cap is D; the distance between the unlocking position and the balance position in the axial direction of the lock nail with the cap is H; the value of H is greater than the value of D. Thereby make from the in-process that elastic locking piece removed to the lock position from balanced position, can release certain elastic potential energy, also make the elasticity direction of elastic locking piece and lock position to the slope direction between the balanced position back to each other simultaneously to when avoiding elastic locking piece to arrange the lock position in, take place automatic unblock under elastic locking piece self elastic force effect, be used for guaranteeing the structural stability after the locking.

As a complement or alternative to the above-described elastic locking structure: when the elastic locking piece is in the arc groove section, the rod body of the elastic locking piece is matched with the groove wall inclined plane of the locking groove. The inclined plane that the cell wall of arc groove section constitutes is the arc, and in addition, the inclined plane that the cell wall of arc groove section constitutes can also be the diagonal form, and in the pivoted process of taking the cap lock nail, the power that the cell wall of locked groove applied to the pole body of elasticity latch fitting inclines in the axial and the direction of rotation of taking the cap lock nail, and the power that elasticity latch fitting bore will be decomposed into along the component force of taking the cap lock nail axial direction, and this component force can drive elasticity latch fitting emergence bending and elastic potential energy of accumulation.

As a complement or alternative to the above-described elastic locking structure: when the elastic locking piece is positioned between the unlocking position and the balancing position; the deformation amount of the elastic locking piece is increased along with the positive rotation of the capped locking nail; conversely, the amount of deformation of the resilient locking element decreases with the reverse rotation of the capped locking pin.

As a complement or alternative to the above-described elastic locking structure: when the elastic locking piece is positioned between the unlocking position and the balancing position; the deformation amount of the elastic locking piece is reduced along with the positive rotation of the capped locking nail; conversely, the amount of deformation of the resilient locking element increases with the counter-rotation of the capped spike.

As a complement or alternative to the above-described elastic locking structure: the mounting part is in a hole shape or a groove shape.

As a complement or alternative to the above-described elastic locking structure: when the mounting part is of a groove-shaped structure parallel to the axial direction of the capped lock pin, first bending sections are arranged at two ends of the elastic lock piece, and a second bending section is respectively arranged at the end part of each first bending section; the abutting lock seat is further provided with a positioning hole, and the second bending section can be inserted into the positioning hole.

As a complement or alternative to the above-described elastic locking structure: when the mounting part is in a hole-shaped structure or a groove-shaped structure vertical to the axial direction of the capped lock pin, the two ends of the elastic lock piece are respectively provided with a pointed end and a convex cap; after the resilient locking element is installed, the nib is deformed into a curved or peened enlarged configuration to limit axial movement of the stem.

As a complement or alternative to the above-described elastic locking structure: the pressing lock seat is a U-shaped metal piece or two parallel seat pieces.

As a complement or alternative to the above-described elastic locking structure: the locking workpiece abutting against the nail cap is a first locking workpiece; the locking workpiece abutting against the abutting lock seat is a second locking workpiece; and holes for the penetration of the capped lock nails are formed in the second locking workpiece and the first locking workpiece.

The utility model has the advantages that:

1. according to the scheme, the elastic locking piece can be driven to deform by utilizing the rotation of the arc groove section, elastic potential energy is accumulated in the elastic locking piece, and when the elastic locking piece is arranged at the positioning position, the elastic locking piece can be used for tensioning the locking nail with the cap, so that the first locking workpiece and the second locking workpiece are clamped by utilizing the matching of the abutting locking seat and the nail cap, and when more locking workpieces are arranged between the first locking workpiece and the second locking workpiece, the locking nail with the cap penetrates and is tensioned;

2. the cap-equipped lock pin in the scheme has the advantages that the elastic locking piece can be clamped into the lock groove or can be separated from the lock groove when the rotation amount of the cap-equipped lock pin relative to the elastic locking piece is lower than 180 degrees, so that the first locking workpiece and the second locking workpiece can be more conveniently disassembled; and, because the cap-contained lock pin that strains first position locking work piece and second position locking work piece is by elasticity latch fitting tensioning, this elasticity latch fitting also has certain elasticity when locating the lock position in, consequently, first position locking work piece and second position locking work piece are in elastic connection's state all the time, can satisfy in the connection demand of corresponding elastic connection operating mode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is an exploded view of the elastic locking structure in the present embodiment;

FIG. 2 is a schematic view of the structure of the capped lock pin of the present solution;

FIG. 3 is a view of a resilient locking structure of FIG. 1 in use;

fig. 4 is a view showing an alternative use state of the elastic locking structure.

In the figure: 1-locking nail with cap; 11-a tubular section; 12-a lock groove; 121-vertical groove section; 122-arc groove section; 123-balanced bit; 124-lock position; 125-unlocking bit; 13-nail cap; 2-pressing the lock seat; 21-mounting location; 22-positioning holes; 3-a resilient latch; 31-a first bending section; 32-a second bending section; 4-first indexing the workpiece; 5-second capture of the workpiece; 6-round spacer; 7-elastic retainer ring.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts will belong to the protection scope of the present solution based on the embodiments in the present solution.

Example 1

As shown in fig. 1 to fig. 3, the present embodiment designs an elastic locking structure, which includes a capped locking pin 1, a pressing locking seat 2, and an elastic locking piece 3.

The elastic locking structure in the embodiment is mainly a connecting structure for locking workpieces under the condition of elastic connection and detachable connection. The number of the locking workpieces can be two or more, and when the number of the locking workpieces is two, the two locking workpieces are the first locking workpiece 4 and the second locking workpiece 5; and when the number of the locked workpieces is more than two, the two locked workpieces positioned at the outermost sides are the first locked workpiece 4 and the second locked workpiece 5. And holes for the penetration of the capped lock nails 1 are formed in the second locking workpiece 5 and the first locking workpiece 4. The first capture workpiece 4 in this embodiment may be a motor mount and the second capture workpiece 5 may be a chute cover.

One end of the lock nail with the cap 1 is coaxially provided with a tubular section 11, and the tubular section 11 can be an independent part welded with the lock nail with the cap 1 or a part of the lock nail with the cap 1. The other end of the capped lock nail 1 is provided with a nail cap 13, and the nail cap 13 can be provided with a linear or cross-shaped notch for matching with a screwdriver.

The side walls of the two opposite sides of the tubular section 11 are respectively provided with a J-shaped locking groove 12; the locking groove 12 comprises a vertical groove section 121 and an arc groove section 122 which are communicated with each other, an unlocking position 125 is formed at the intersection of the arc groove section 122 and the vertical groove section 121, and a locking position 124 is formed at one end of the arc groove section 122 far away from the vertical groove section 121; a balance bit 123 is formed in the arc groove section 122 between the unlocking bit 125 and the locking bit 124; the distance between the balance position 123 and the nail head 13 is smaller than that between the unlocking position 125 and the nail head 13; the distance between the unlocking position 125 and the locking position 124 in the axial direction of the capped lock pin 1 is D; the distance between the unlocking position 125 and the balance position 123 in the axial direction of the capped lock pin 1 is H; the value of H is greater than the value of D. Therefore, in the process of moving the elastic locking piece 3 from the balance position 123 to the locking position 124, certain elastic potential energy can be released, and meanwhile, an included angle between the elastic direction of the elastic locking piece 3 and an inclined plane between the locking position 124 and the balance position 123 is larger than 90 degrees, so that when the elastic locking piece 3 is arranged in the locking position 124, automatic unlocking is avoided under the action of the elastic force of the elastic locking piece 3, and the structural stability after locking is ensured.

The elastic locking piece 3 has a rod-shaped shaft, first bending sections 31 are arranged at two ends of the elastic locking piece 3, a second bending section 32 is arranged at the end part of each first bending section 31, the second bending sections 32 are parallel to the shaft of the elastic locking piece 3, and the included angle between the first bending sections 31 and the shaft of the elastic locking piece 3 is smaller than 90 degrees. The shaft body of the elastic locking piece 3 can extend into the locking groove 12; the elastic locking piece 3 can be bent and deformed and generates elastic potential energy; with the positive rotation of the capped nail 1, the elastic locking piece 3 can move from the unlocking position 125 to the locking position 124 through the balance position 123; with the reverse rotation of the capped nail 1, the elastic locking piece 3 can move from the locking position 124 to the unlocking position 125 through the balance position 123.

The pressing lock seat 2 is a U-shaped metal piece, the pressing lock seat 2 can be connected to the lower part of a second locking workpiece in a welding mode when the pressing lock seat is used, two side walls of the pressing lock seat 2 are respectively provided with an installation part 21, the installation parts 21 are groove-shaped structures parallel to the axial direction of the locking nail with the cap 1, the pressing lock seat 2 is further provided with a positioning hole 22, the second bending section 32 can be inserted into the positioning hole 22, the two installation parts 21 are respectively used for installing and fixing two ends of the elastic locking piece 3, and a space for the locking nail with the cap 1 to penetrate and rotate is formed between the two installation parts 21; the distance between two installation position 21 should be less than the length of elasticity latch fitting 3 to the both ends of elasticity latch fitting 3 are partly stretched out from installation position 21 respectively, thereby guarantee the deformation allowance of elasticity latch fitting 3 at the in-process that warp, make elasticity latch fitting 3 warp the back, and the both ends of elasticity latch fitting 3 also can not take off in installation position 21.

Still overlap at the cap lock pin 1 and be equipped with circlip 7 outward, this circlip 7 is arranged first lock position work piece 4 below in when using to make the second lock position work piece 5 dismantle the back, the cap lock pin 1 also does not drop when first lock position work piece 4 upset.

When two or more locking workpieces are connected, the locking nail 1 with the cap penetrates through all the locking workpieces, and the nail cap 13 and the abutting locking seat 2 abut against the two outermost locking workpieces respectively.

When the elastic locking piece 3 is in the arc groove section 122, the rod body of the elastic locking piece 3 is matched with the groove wall inclined plane of the locking groove 12. The inclined plane formed by the groove wall of the arc groove section 122 is arc-shaped, in addition, the inclined plane formed by the groove wall of the arc groove section 122 can also be in an inclined line shape, in the rotating process of the capped lock pin 1, the force applied to the rod body of the elastic locking piece 3 by the groove wall of the lock groove 12 is inclined to the axial direction and the rotating direction of the capped lock pin 1, the force born by the elastic locking piece 3 can be decomposed into component force along the axial direction of the capped lock pin 1, and the component force can push the elastic locking piece 3 to bend and accumulate elastic potential energy.

Specifically, the method comprises the following steps: when the elastic locking member 3 is located between the unlocking position 125 and the balancing position 123; the deformation amount of the elastic locking piece 3 is increased along with the positive rotation of the capped lock pin 1, and in the process, the capped lock pin 1 rotates and the force applied to the elastic locking piece 3 is decomposed into component force along the axial direction of the capped lock pin 1, and the component force can drive the elastic locking piece 3 to bend and accumulate elastic potential energy; on the contrary, the deformation amount of the elastic locking member 3 is decreased with the reverse rotation of the capped nail 1. When the elastic locking member 3 is located between the locking position 124 and the balance position 123; along with the positive rotation of the capped lock nail 1, the deformation amount of the elastic lock piece 3 is reduced, in the process, the force released by the elastic lock piece 3 to the capped lock nail 1 is decomposed into component force along the rotation direction of the capped lock nail 1, the component force can push the capped lock nail 1 to rotate along the positive direction, and meanwhile, the elastic lock piece 3 can release certain elastic potential energy; on the contrary, the deformation amount of the elastic locking member 3 increases with the reverse rotation of the capped nail 1. In the rotation process of the elastic locking piece 3, the area of the elastic locking piece 3 in the arc groove section 122 can be judged according to the magnitude and direction of the rotation resistance, so as to judge whether the elastic locking structure is locked in place.

When the structure is used, the arc groove section 122 is distributed along the circumferential direction of the capped lock nail 1, so that in the rotating process of the capped lock nail 1, the elastic locking piece 3 can be driven to deform by utilizing the rotation of the arc groove section 122, the elastic locking piece 3 accumulates elastic potential energy, when the elastic locking piece 3 is positioned at the locking position 124, the elastic locking piece 3 can be used for tensioning the capped lock nail 1, the first locking workpiece 4 and the second locking workpiece 5 can be clamped by utilizing the abutting pressure locking seat 2 and the top cap in a matching manner, and when more locking workpieces exist between the first locking workpiece 4 and the second locking workpiece 5, the capped lock nail 1 also penetrates and is tensioned.

Example 2

As shown in fig. 2 and fig. 4, another elastic locking structure is designed to connect the first locking workpiece 4 and the second locking workpiece 5, and the elastic locking structure of this embodiment includes a capped locking pin 1, a pressing locking seat 2, an elastic locking piece 3, and the like.

One end of the locking nail 1 with the cap is coaxially provided with a tubular section 11, and the side walls of two opposite sides of the tubular section 11 are respectively provided with a J-shaped locking groove 12; the locking groove 12 comprises a vertical groove section 121 and an arc groove section 122 which are communicated with each other, an unlocking position 125 is formed at the intersection of the arc groove section 122 and the vertical groove section 121, and a locking position 124 is formed at one end of the arc groove section 122 far away from the vertical groove section 121; a balance bit 123 is formed in the arc groove section 122 between the unlocking bit 125 and the locking bit 124; the distance between the balance position 123 and the nail head 13 is smaller than that between the unlocking position 125 and the nail head 13; the distance between the unlocking position 125 and the locking position 124 in the axial direction of the capped lock pin 1 is D; the distance between the unlocking position 125 and the balancing position 123 in the axial direction of the capped lock pin 1 is H; the value of H is greater than the value of D.

The elastic locking piece 3 is provided with a rod-shaped rod body, and the two ends of the elastic locking piece 3 are respectively provided with a pointed end and a convex cap; after the resilient locking element 3 is installed, the nib deforms into a curved or peened enlarged configuration to limit axial movement of the shaft. The shaft body of the elastic locking piece 3 can extend into the locking groove 12; the elastic locking piece 3 can be bent and deformed and generates elastic potential energy; with the positive rotation of the capped nail 1, the elastic locking piece 3 can move from the unlocking position 125 to the locking position 124 through the balance position 123; with the reverse rotation of the capped nail 1, the elastic locking piece 3 can move from the locking position 124 to the unlocking position 125 through the balance position 123.

The abutting-pressing lock base 2 is composed of two parallel base pieces, the base pieces can be made of angle steel, the two angle steel can be connected to the lower portion of the second locking workpiece 5 in a welding mode when in use, mounting portions 21 are arranged on the two angle steel respectively, the mounting portions 21 are of hole-shaped structures or groove-shaped structures perpendicular to the axial direction of the locking nail with the cap 1, and a space for the locking nail with the cap 1 to penetrate and rotate is formed between the two mounting portions 21.

When the elastic locking piece 3 is in the arc groove section 122, the rod body of the elastic locking piece 3 is matched with the groove wall inclined plane of the locking groove 12. When elasticity latch fitting 3 is located to unlock between position 125 and the balanced position 123, along with the forward rotation of capped fitting 1, the deformation volume of elasticity latch fitting 3 increases, otherwise, along with the reverse rotation of capped fitting 1, the deformation volume of elasticity latch fitting 3 reduces. When the elastic locking member 3 is located between the locking position 124 and the balance position 123; with the positive rotation of the capped lock pin 1, the deformation amount of the elastic lock piece 3 is reduced; on the contrary, the deformation amount of the elastic locking member 3 increases with the reverse rotation of the capped nail 1.

When the first locking workpiece 4 and the second locking workpiece 5 are connected, the locking nail 1 with the cap penetrates through all the locking workpieces, and the nail cap 13 and the abutting locking seat 2 abut against the first locking workpiece 4 and the second locking workpiece 5 respectively.

The above examples are merely for clearly illustrating the examples and are not intended to limit the embodiments; and are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the technology so far introduced are within the scope of protection of the present technology.

Claims

1. An elasticity locking structure which characterized in that: comprises a lock nail (1) with a cap, a pressing lock seat (2) and an elastic lock piece (3);

one end of the lock nail with the cap (1) is coaxially provided with a tubular section (11), and the other end of the lock nail with the cap (1) is provided with a nail cap (13); a J-shaped locking groove (12) is arranged on the side wall of the tubular section (11); the locking groove (12) comprises a vertical groove section (121) and an arc groove section (122) which are communicated with each other, an unlocking position (125) is formed at the intersection position of the arc groove section (122) and the vertical groove section (121), and a locking position (124) is formed at one end of the arc groove section (122) far away from the vertical groove section (121); a balance position (123) is formed in the arc groove section (122) between the unlocking position (125) and the locking position (124); the distance between the balance position (123) and the nail cap (13) is smaller than that between the unlocking position (125) and the nail cap (13);

the elastic locking piece (3) is provided with a rod-shaped rod body which can extend into the locking groove (12); the elastic locking piece (3) can be bent and deformed and generates elastic potential energy; the elastic locking piece (3) can move from an unlocking position (125) to a locking position (124) through a balance position (123) along with the forward rotation of the capped lock pin (1); along with the reverse rotation of the capped lock pin (1), the elastic lock piece (3) can move to an unlocking position (125) through a balance position (123) in a self-locking positioning way (124);

the pressing lock seat (2) is provided with two mounting parts (21), the two mounting parts (21) are respectively used for mounting and fixing two ends of the elastic lock piece (3), and a space for the cap-provided lock nail (1) to penetrate and rotate is formed between the two mounting parts (21);

when two or more locking workpieces are connected, the locking nail (1) with the cap penetrates through all the locking workpieces, and the nail cap (13) and the abutting locking seat (2) respectively abut against the two locking workpieces on the outermost side.

2. The elastic locking structure according to claim 1, wherein: the distance between the unlocking position (125) and the locking position (124) in the axial direction of the capped lock pin (1) is D; the distance between the unlocking position (125) and the balance position (123) in the axial direction of the lock nail with the cap (1) is H; the value of H is greater than the value of D.

3. The elastic locking structure according to claim 1, wherein: when the elastic locking piece (3) is arranged in the arc groove section (122), the rod body of the elastic locking piece (3) is matched with the groove wall inclined plane of the locking groove (12).

4. A resilient locking structure according to claim 3, wherein: when the elastic locking piece (3) is positioned between the unlocking position (125) and the balance position (123); the deformation amount of the elastic locking piece (3) is increased along with the positive rotation of the capped lock pin (1); on the contrary, the deformation amount of the elastic locking piece (3) is reduced along with the reverse rotation of the capped lock pin (1).

5. A resilient locking structure according to claim 3, wherein: when the elastic locking piece (3) is positioned between the locking position (124) and the balance position (123); the deformation amount of the elastic locking piece (3) is reduced along with the positive rotation of the capped lock pin (1); on the contrary, the deformation amount of the elastic locking piece (3) is increased along with the reverse rotation of the capped lock pin (1).

6. The elastic locking structure according to claim 1, wherein: the mounting portion (21) is in the shape of a hole or a groove.

7. The elastic locking structure according to claim 6, wherein: when the mounting part (21) is of a groove-shaped structure parallel to the axial direction of the capped lock nail (1), first bending sections (31) are arranged at two ends of the elastic lock piece (3), and a second bending section (32) is respectively arranged at the end part of each first bending section (31); the pressing lock seat (2) is further provided with a positioning hole (22), and the second bending section (32) can be inserted into the positioning hole (22).

8. The elastic locking structure according to claim 6, wherein: when the mounting part (21) is in a hole-shaped structure or a groove-shaped structure vertical to the axial direction of the capped lock nail (1), the two ends of the elastic lock piece (3) are respectively provided with a pointed end and a convex cap; after the resilient locking element (3) is installed, the nib is deformed into a curved or peened enlarged configuration to limit axial movement of the shaft.

9. The elastic locking structure according to claim 6, wherein: the pressing lock seat (2) is a U-shaped metal piece or two parallel seat pieces.

10. The elastic locking structure according to claim 1, wherein: the locking workpiece abutting against the nail cap (13) is a first locking workpiece (4); the locking workpiece which is abutted against the abutting lock seat (2) is a second locking workpiece (5); and holes for the penetration of the capped lock nails (1) are formed in the second locking workpiece (5) and the first locking workpiece (4).