CN219733833U - Fastening system - Google Patents

Abstract

The utility model discloses a fastening system, comprising: a first plate material provided with a first hole; a second plate material provided with a second hole; a fastening assembly, comprising: the supporting seat is embedded in the first hole of the first plate; a connecting element capable of moving relative to the support base; spring elements with two ends respectively abutted with the supporting seat and the connecting element; the connecting element is provided with an inclined plane at one end facing the second plate, and a guide part matched with the inclined plane for sliding is arranged at one end of the second plate facing the first plate; when the fastening system is in an unlocking state, one end of the connecting element, which faces the second plate, is abutted against the end face, which faces the first plate, of the second plate; and in the locked state, the connecting element extends into the second hole of the second plate; the first and second panels are movable relative to each other to switch the fastening system between an unlocked state and a locked state. The fastening system provided by the utility model cancels the operation part in the prior art, realizes the locking or unlocking of the plate by the non-contact fastening assembly, and has wider application fields.

Description

Fastening system

Technical Field

The utility model relates to the technical field of fasteners, in particular to a fastening system.

Background

When connecting at least two plates stacked in the vertical direction, it is necessary to connect adjacent two plates with a connecting member in the vertical direction to achieve locking connection of the two plates. This requires that the connector has sufficient operating space in the vertical direction to guide it into the two plates, but in some cases the space in the vertical direction is quite narrow, so that it is difficult to lock the two mounting plates by means of the vertical locking member without the use of a hand or a large tool to extend into the operation. For this application, for example, patent CN202121270400.6 describes a fastening assembly that converts a horizontal movement into a vertical movement so that the connecting element can be locked or unlocked with the second plate, but pushes the operating portion of the fastening assembly horizontally so that the supporting seat embedded in the operating portion can reciprocate, and the connecting element can extend into or out of the second mounting member in the vertical direction to lock or unlock. The whole structure of the fastening assembly is complex, the fastening assembly still needs to be contacted during operation, and the original narrow space is more narrow and narrow, so that the locking piece with the locking function is still necessary to be improved continuously in the scene of narrow operation space, the conversion of the movement direction of each part in the assembly is driven by the change of the acting force direction in operation, and the locking and unlocking of the locking piece are realized.

Disclosure of Invention

In order to overcome the defects in the prior art, the main purpose of the utility model is to provide a fastening system, which is simple and stable, eliminates an operation part in the prior art, does not need to contact a fastening component, realizes the conversion of acting force direction, locks or unlocks another plate, and has wider application fields.

The aim of the utility model is achieved by the following technical scheme:

the present utility model provides a fastening system comprising:

the first plate is provided with a first hole;

the second plate is provided with a second hole;

a fastening assembly, the fastening assembly comprising:

the supporting seat is embedded in the first hole of the first plate;

a connecting element movable relative to the support base;

the two ends of the spring element are respectively abutted with the supporting seat and the connecting element;

the connecting element is provided with an inclined surface at one end facing the second plate, and a guide part matched with the inclined surface for sliding is arranged at one end of the second plate facing the first plate;

the fastening system is provided with an unlocking state and a locking state, and in the unlocking state, one end of the connecting element, which faces the second plate, is propped against the end face, which faces the first plate, of the second plate; in the locked state, the connecting element extends into the second hole of the second plate;

the first sheet material and the second sheet material are relatively movable to switch the fastening system between the unlocked state and the locked state.

As a further description of the above solution, when the fastening system is in the locked state, the first plate and the second plate are able to move relatively so that the inclined surface of the connecting element slides on the guiding portion of the second plate until the connecting element is disengaged from the second hole, thereby achieving the unlocked state.

As a further description of the above solution, when the fastening system is in the unlocked state, the first plate and the second plate are relatively movable and the spring element is able to impart a force to the movement of the connecting element towards the second plate, so that the inclined surface of the connecting element slides in the guide of the second plate until the connecting element protrudes into the second hole of the second plate.

As a further description of the above technical solution, the support seat is perforated along its axis with a third hole, in which the spring element is arranged.

As a further description of the above solution, an end of the connecting element facing away from the second plate material passes through the spring element and out through the third hole of the support seat.

As a further description of the above technical solution, the end of the connecting element facing away from the end of the second sheet material is connected with a top cap, the width of the top cap along its radial direction being greater than the aperture of the third hole;

when the fastening system is in the locking state, the top cap is propped against the supporting seat;

when the fastening system is in the unlocked state, the top cap is separated from the support base.

As a further description of the above technical solution, the connecting element includes a main body portion and a limiting portion, where the limiting portion is formed by extending an outer edge of the main body portion along a radial direction and is in clearance fit with a hole wall of the three holes;

one end of the spring element, which faces towards the second plate, is abutted against the end face, which is away from the second plate, of the limiting part, and one end of the spring element, which is away from the second plate, is abutted against the supporting seat.

As a further description of the above-described technical means, the wall surface for forming the third hole includes a first inner peripheral wall and a second inner peripheral wall, the first inner peripheral wall having an inner diameter smaller than an inner diameter of the second inner peripheral wall, the first inner peripheral wall forming an end of the third hole close to the top cap, the second inner peripheral wall forming an end of the third hole away from the top cap;

the wall surface for forming the third hole further comprises a top wall connecting the first inner peripheral wall and the second inner peripheral wall, and one end of the spring element, which is away from the second plate material, abuts against the top wall.

As a further description of the above technical solution, an end of the first inner peripheral wall away from the second inner peripheral wall protrudes inward in a radial direction of the third hole to form a limiting protrusion, the connecting element further includes a limiting surface, the limiting surface protrudes inward from the main body portion, and the limiting surface and the inclined surface are located at two sides of the limiting portion in an axial direction of the connecting element;

the limiting protrusion is in clearance fit with the limiting surface of the connecting element.

As a further description of the above technical solution, the support base extends radially outwards towards one end of the second plate to form a riveting portion, and the riveting portion is riveted in the first hole;

the rivet has asymmetric first and second sides, wherein, upon installation, the bevel of the connecting element is placed opposite the first or second side of the rivet, thereby achieving a predetermined positioning of the connecting element.

The utility model has the outstanding effects that:

the fastening system provided by the utility model is simple and stable, an operating part in the prior art is omitted, when the second plate is unlocked or locked, an operator only needs to push and pull one of the two plates, so that the two plates relatively move, the inclined surface at one end of the connecting element, which faces the second plate, and the guiding part of the second plate are driven to relatively slide, so that the connecting element extends into or falls out of the second plate towards one end of the second plate, the direction of acting force is changed without contacting any part of the fastening assembly, and the second plate is locked or unlocked, so that the manual action is simplified, and the application scene is wider;

in the fastening system provided by the utility model, the third hole is penetrated through the supporting seat along the axis of the supporting seat, one end of the connecting element, which is far away from the second plate, penetrates through the spring element and penetrates out of the third hole, the end part of the connecting element is connected with the top cap, and when the fastening system is in a locking state, the top cap is propped against the supporting seat, so that in the process of pushing and pulling the plate to gradually lock the fastening system, the error between the actually-reached locking position and the preset locking position of the connecting element, which is far towards the second plate, is reduced, and the integral locking stability of the fastening system is ensured;

in the fastening system provided by the utility model, the riveting part arranged on the supporting seat is provided with the first side and the second side which are asymmetric, and when the fastening system is installed, the inclined plane of the connecting element is opposite to the first side or the second side of the riveting part, so that the inclined direction of the inclined plane of the connecting element facing one end of the second plate is conveniently determined, and the assembling personnel can assemble the connecting element and the supporting seat quickly and assemble a finished product accurately.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a fastening system according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a fastening assembly according to another embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a fastening assembly according to yet another embodiment of the present utility model;

FIG. 4 is a schematic view of a supporting seat according to another embodiment of the present utility model;

FIG. 5 is a schematic view of a connecting element according to another embodiment of the present utility model;

FIG. 6 is a schematic view showing an assembled state of the supporting base, the connecting element and the spring element according to another embodiment of the present utility model;

FIG. 7 is a partial top view of a first sheet of material in accordance with yet another embodiment of the utility model;

FIG. 8 is a schematic view of a fastening assembly in an unlocked connection according to yet another embodiment of the present utility model;

fig. 9 is a schematic view showing a fastening assembly in a locked coupled state according to still another embodiment of the present utility model.

Reference numerals:

1. a first sheet material; 11. a first hole;

2. a second plate; 21. a second hole; 22. a guide part;

3. a support base; 31. a third hole; 311. a first inner peripheral wall; 312. a second inner peripheral wall; 313. a top wall; 32. a caulking part;

4. a connecting element; 41. an inclined plane; 42. a main body portion; 421. a limiting surface; 43. a limit part;

5. a spring element; 6. and (5) a top cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "middle", "lower", "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in terms of its overall structure.

Referring to fig. 1 to 9, one embodiment of the present utility model discloses a fastening system, which includes:

a first plate 1, wherein a first hole 11 is formed in the first plate 1;

a second plate 2, wherein a second hole 21 is formed in the second plate 2;

a fastening assembly, the fastening assembly comprising:

the supporting seat 3 is embedded in the first hole 11 of the first plate 1;

a connecting element 4, said connecting element 4 being movable with respect to said support seat 3;

a spring element 5, wherein two ends of the spring element 5 are respectively abutted against the supporting seat 3 and the connecting element 4;

wherein, the end of the connecting element 4 facing the second plate 2 is provided with an inclined surface 41, and the end of the second plate 2 facing the first plate 1 is provided with a guiding part 22 which is matched and slides with the inclined surface 41;

the fastening system has an unlocked state in which the end of the connecting element 4 facing the second sheet material 2 abuts against the end face of the second sheet material 2 facing the first sheet material 1; in the locked state, the connecting element 4 protrudes into the second hole 21 of the second sheet material 2;

the first sheet material 1 and the second sheet material 2 are relatively movable, so that the fastening system is switched between the unlocked state and the locked state.

With the above structure, the supporting seat 3 is embedded in the first hole 11 of the first plate 1 to be fixedly connected with the first plate 1, the connecting element 4 is abutted to one end of the supporting seat 3 facing the second plate 2 through a spring element 5, one end of the connecting element 4 facing the second plate 2 can extend into the second hole 21 of the second plate 2 under the relaxation action of the spring element 5 to lock the second plate 2 along the self axis, and when one end of the connecting element 4 facing the second plate 2 is retracted from the second hole 21 of the second plate 2, the second plate 2 is unlocked in the axis direction of the connecting element 4. The connecting element 4 is provided with an inclined plane 41 at one end facing the second plate 2, the end of the second plate 2 facing the first plate 1 is provided with a guiding part 22 which is in sliding fit with the inclined plane 41 and can guide one end of the connecting element 4 facing the second plate 2, so that one end of the second plate 2 facing the first plate 1 can slide into or slide out of the second hole 21 of the second plate 2, the connecting element 4 is connected with the first plate 1 through the spring element 5, therefore, when the fastening system is switched between the unlocking state and the locking state, only an operator is required to push and pull one plate, so that the two plates relatively move, the matched sliding action of the inclined plane 41 provided at one end of the connecting element 4 facing the second plate 2 and the guiding part 22 on the second plate 2 can be utilized, the end of the connecting element 4 facing the second plate 2 can slide into or slide out of the second hole 21 of the second plate 2, the fastening component can be further locked against the second plate 2 or the second hole 21 of the second plate 2, and the fastening component can be widely unlocked or the other plate can be easily and conveniently and quickly and conveniently unlocked.

Referring to fig. 1, in particular, in the present embodiment, the first plate 1 and the second plate 2 in the fastening system are parallel and separated in the horizontal direction, and are respectively connected to the external parts of the fastening system, the positions of the two plates in the vertical direction are relatively fixed, and when the fastening system is in the locked state, the first plate 1 and the second plate 2 can relatively move in the horizontal direction, so that the inclined surface 41 of the connecting element 4 slides on the guiding portion 22 of the second plate 2 until the connecting element 4 is separated from the second hole 21, thereby achieving the unlocked state. For example, the inclined surface 41 is disposed at the lower right side of the lower end of the connecting element 4, the lower end is generally wedge-shaped, when the fastening system needs to be unlocked, the first plate 1 may be pulled rightward, that is, the first plate 1 drives the spring element 5 and the connecting element 4 to move rightward synchronously relative to the second plate 2, and the guiding portion 22 provides a guiding function for the lower surface of the lower end of the connecting element 4, when the pulling force is transferred to the inclined surface 41, the inclined surface 41 may slide upward and rightward gradually along the guiding portion 22 until the lower end of the connecting element 4 is separated from the second hole 21, so as to achieve the unlocked state. During the progressive sliding up of the inclined surface 41 with respect to the guide 22, the force of decomposition in the horizontal direction is insufficient to deform the spring element 5, i.e. without bending the spring element 5, the spring element 5 is progressively compressed only under the force of decomposition in the vertical direction. The type of the spring element 5 can thus be selected according to the actual requirements. Of course, in other embodiments, the second sheet material 2 may also be pulled, such that the inclined surface 41 of the connecting element 4 slides on the guiding portion 22 of the second sheet material 2 until the connecting element 4 is disengaged from the second hole 21 to unlock the fastening system. Referring to fig. 8 and 9, in still another embodiment, the two plates are still disposed in parallel in the horizontal direction, but the lower end surface of the first plate 1 is attached to the upper end surface of the second plate 2, and at this time, the first plate 1 and the second plate 2 can slide left and right relatively, and the fastening system can be unlocked and locked by pushing and pulling one of the plates.

In particular, in the present embodiment, when the fastening system is in the unlocked state, the first sheet material 1 and the second sheet material 2 can move relatively, and the spring element 5 can impart a force to the movement of the connecting element 4 towards the second sheet material 2, so that the inclined surface 41 of the connecting element 4 slides in the guiding portion 22 of the second sheet material 2 until the connecting element 4 protrudes into the second hole 21 of the second sheet material 2. For example, in this embodiment, when the fastening system needs to be locked again, the operator pushes the first plate to the left, so that the first plate drives the lower end of the connecting element 4 to move to the left on the upper end surface of the second plate through the spring element 5 until the inclined surface 41 reaches the guiding portion 22, and the limit of the spring element 5 in the vertical direction gradually decreases, so that the spring element 5 gradually relaxes to provide the connecting element 4 with a force moving towards the second plate 2, and cooperates with the gravity and the force of the operator pushing the plate, so that the inclined surface 41 slides to the left and the lower side on the guiding portion 22 of the second plate 2 until the lower end of the connecting element 4 stretches into the second hole 21 of the second plate 2 and reaches the preset locking position, and at this time, the spring element 5 is in a free relaxed state, i.e. is not compressed and is not stretched. Of course, in other embodiments, as the first plate 1 and the second plate 2 are mounted in the vertical direction, the two plates are parallel left and right, and the driving force of the movement of the connecting element 4 towards the second hole 21 is the elastic force generated by the expansion of the spring element 5, and is not acted by gravity. It will be appreciated that the mounting direction of the first and second plates 1, 2 is set according to the actual need, and that the driving force of the movement of the connecting element 4 towards the projection into the second hole 21 is also obtained by the force of gravity of the connecting element 4, the elastic force of the spring element 5, the force of the operator pushing and pulling the plates, according to the actual need, by force decomposition, synthesis.

Specifically, in this embodiment, the inclined surface 41 is set to an inclination angle of 45 °, the guiding portion 22 of the second plate 2 is matched with the guiding portion 22 to set to an inclination angle of 45 °, the guiding portion 22 is overall in a horn shape with a large upper portion and a small lower portion, the opening of the second hole 21 connected below the horn-shaped guiding portion 22 is in a normal shape, the two plates slide relatively in the horizontal direction, the inclined surface 41 and the guiding portion 22 can slide smoothly, and the guiding function thereof enables the lower end of the connecting element 4 to extend into the second hole 21 of the second plate 2 smoothly, or enables the lower end of the connecting element 4 to separate from the second hole 21 of the second plate 2 smoothly. Of course, in other embodiments, the inclined surface 41 of the connecting element 4 facing the plate may be set at other inclined angles, and the guiding portion 22 of the second plate 2 is matched with the inclined surface to set at an adaptive inclined angle, so that the surface of the connecting element 4 is guided to enable the two to slide smoothly.

Referring to fig. 4 and 6, in a further embodiment, the support base 3 has a third hole 31 penetrating along the axis thereof, the spring element 5 is disposed in the third hole 31, and the upper end of the connecting element 4 passes through the spring element 5 and extends upward to pass through the third hole 31 of the support base 3, so as to further ensure that the spring element 5 does not have the similar bending and dislocation problems in the radial direction, but only compresses or expands in the axial direction, thereby improving the movement reaction capability of the connecting element 4, and the moving space of the connecting element 4 in the vertical direction is sufficient, and the lower end of the connecting element can also smoothly extend into or out of the second hole 21 of the second plate 2.

Referring to fig. 2 and 3, and fig. 8 and 9, specifically, in a further embodiment, an end portion of the connecting element 4 facing away from one end of the second plate 2 is further connected with a top cap 6, and a radial width of the top cap 6 is greater than a hole diameter of the third hole 31, so that when the fastening system is in the locked state, a lower end of the top cap 6 abuts against an upper end of the supporting seat 3, thereby ensuring that the connecting element 4 does not continue to move downward after an actual locking position in a vertical direction reaches a preset position, and ensuring overall locking stability of the fastening system. When the fastening system is in the unlocked state, the lower end of the top cap 6 is separated from the upper end of the supporting seat 3 and is not propped against the upper end. It will be appreciated that the furthest distance the overcap 6 moves upwards does not exceed the highest position above the first sheet material 1 with an operative space. Preferably, the top cap 6 is made of plastic, after the assembly of the supporting seat 3, the connecting element 4, and the spring element 5 is completed, the top cap 6 may be integrally formed at the upper end of the connecting element 4, of course, the top cap 6 may be processed into a finished top cap 6 in advance, after the assembly of the supporting seat 3, the connecting element 4, and the spring element 5 is completed, the top cap may be fastened to the upper end of the connecting element 4, and the fastening manner may be riveting, screwing, or the like, so as to ensure that the movement of the connecting element 4 in the vertical direction has a limiting effect. It should be noted that, when the top cap 6 is directly formed at the upper end of the connecting element 4 by using a mold, the outer diameter of the top cap 6 should not be larger than the radial width of the first hole 11 of the first plate 1, so that the whole fastening assembly can be inserted into the first hole 11 of the first plate 1 from the lower side of the first plate 1 through the first hole 11, and the top cap 6 does not damage the first plate 1, thereby simplifying the manual action of the fastening assembly in the application scenario.

Referring to fig. 3, 5, 6 and 8 and 9, in a further embodiment, the connecting element 4 includes a main body 42 and a limiting portion 43, the main body 42 is located at an upper end of the connecting element 4, the limiting portion 43 is formed by extending a lower edge of the main body 42 radially outwards, and is in a ring-shaped protrusion shape, and when the spring element 5 is sleeved on the main body 42 of the connecting element 4, a lower end of the spring element abuts against an upper end face of the limiting portion 43, and an upper end of the spring element abuts against the supporting seat 3. The limiting part 43 is in clearance fit with the hole walls of the three holes, so that the limiting effect on the connecting element 4 is achieved in the horizontal direction when the connecting element 4 moves up and down, the central axis of the connecting element 4 can be kept infinitely close to or even coincident with the axes of the supporting seat 3 and the first hole 11 of the first plate 1 in the process of moving up and down, and the lower end of the connecting element 4 can slide into the second hole 21 of the second plate 2 smoothly through the guide of the guide part 22, so that the locking of the fastening system in the vertical direction is realized; or the lower end of the connecting element 4 can slide out of the second hole 21 of the second plate 2 smoothly through the guide of the guide portion 22.

Referring to fig. 3, 6 and 8 and 9, specifically, in still another embodiment, the wall surface for forming the third hole 31 includes a first inner circumferential wall 311 and a second inner circumferential wall 312, the inner diameter of the first inner circumferential wall 311 is smaller than the inner diameter of the second inner circumferential wall 312, the first inner circumferential wall 311 forms an end portion of the third hole 31 close to the top cap 6, and the second inner circumferential wall 312 forms an end portion of the third hole 31 away from the top cap 6; the wall surface for forming the third hole 31 further includes a top wall 313 connecting the first inner peripheral wall 311 and the second inner peripheral wall 312, so that the upper end of the spring element 5 abuts against the top wall, and thus the upper end of the spring element 5 is matched with the limiting portion 43 of the connecting element 4 to limit the spring element 5 in the vertical direction, and when the lower end of the connecting element 4 extends into the second hole 21 of the second plate 2 to lock the second plate 2, the limiting portion 43 of the connecting element does not still fall out of the third hole 31 of the supporting seat 3 and is in clearance fit with the second inner peripheral wall 312, so that the spring element 5 is always accommodated in the third hole 31 of the supporting seat 3 to maintain the movement reaction capability of the connecting element 4.

Specifically, in yet another embodiment, an end of the first inner circumferential wall 311 away from the second inner circumferential wall 312 protrudes inward along the radial direction of the third hole 31 to form a limiting protrusion, the connecting element 4 further includes a limiting surface 421, the limiting surface 421 protrudes inward from the main body 42, and the limiting surface 421 and the inclined surface 41 are located on upper and lower sides of the limiting portion 43 in the axial direction of the connecting element 4; referring to fig. 5, for example, in this embodiment, the limiting surface 421 of the main body portion 42 of the connecting element 4 protruding inward is two opposite planes, so that the cross section of the main body portion 42 is in a long circular shape (similar to a conventional track and field runway) with semicircular front and rear ends and rectangular middle. The limiting protrusions are symmetrically arranged on the outer sides of the two limiting surfaces 421 and are in clearance fit with the two limiting surfaces 421, so that the limiting protrusions play a role in limiting the connecting element 4, the connecting element cannot rotate in the supporting seat 3, the inclined surface 41 arranged at the lower end of the connecting element is guaranteed to be unchanged relative to the inclined direction of the supporting seat 3, horizontal movement can be effectively converted into vertical movement, the lower end of the connecting element 4 can smoothly extend downwards into or upwards out of the second plate 2, and the second plate 2 is locked or unlocked. And the lower limit part 43 also cooperates with the limit projection to guide the up-and-down movement of the connecting element 4. Of course, in other embodiments, the limiting surface 421 may be provided in other numbers, and the number of the limiting protrusions of the supporting seat 3 may be correspondingly provided, so as to limit and guide the connecting element 4, so that the connecting element 4 may not rotate in the supporting seat 3.

Referring to fig. 1 to 9, specifically, the lower end of the supporting seat 3 extends radially outwards to form a riveting portion 32, the riveting portion 32 is riveted in the first hole 11, and the riveting portion 32 and the first hole 11 are in interference fit, so that the relative position between the supporting seat 3 and the first plate 1 is ensured to be unchanged after the supporting seat 3 is installed in the first hole 11 of the first plate 1, and the connecting element 4 does not rotate in the supporting seat 3, so that an operator does not need to change the direction of the push-pull plate in the unlocking and locking process of the fastening system.

Referring to fig. 2, in particular, in the present embodiment, the left side of the riveted portion 32 is a straight side, the right side is an arc side, the radial cross section thereof is D-shaped, the left side and the right side are asymmetric, after the preset positioning of the connecting element 4 is achieved, the inclined direction of the inclined surface 41 is gradually inclined upwards from the left side to the right side, and is opposite to the right arc side of the riveted portion 32, so that an assembler can directly observe the direction of the inclined surface 41 and the left side and the right side of the riveted portion 32 when assembling the connecting element 4 and the supporting seat 3, thereby rapidly and accurately completing the assembling work. Accordingly, as shown in fig. 7, the first hole 11 of the first plate material 1 is adapted to be D-shaped in its radial cross section. Of course, in other embodiments, the first side and the second side of the rivet 32 may be provided in other asymmetric shapes, so as to easily confirm the inclination direction of the inclined surface 41 during the assembly process.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any changes, equivalents, modifications and improvements may be made without departing from the spirit and principles of the present utility model.

Claims (10)

1. A fastening system, comprising:

the first plate is provided with a first hole;

the second plate is provided with a second hole;

a fastening assembly, the fastening assembly comprising:

the supporting seat is embedded in the first hole of the first plate;

a connecting element movable relative to the support base;

the two ends of the spring element are respectively abutted with the supporting seat and the connecting element;

the connecting element is provided with an inclined surface at one end facing the second plate, and a guide part matched with the inclined surface for sliding is arranged at one end of the second plate facing the first plate;

the fastening system is provided with an unlocking state and a locking state, and in the unlocking state, one end of the connecting element, which faces the second plate, is propped against the end face, which faces the first plate, of the second plate; in the locked state, the connecting element extends into the second hole of the second plate;

the first sheet material and the second sheet material are relatively movable to switch the fastening system between the unlocked state and the locked state.

2. The fastening system of claim 1, wherein the first sheet material and the second sheet material are relatively movable when the fastening system is in the locked state to slide the ramp of the connecting element over the guide portion of the second sheet material until the connecting element is disengaged from the second aperture to achieve the unlocked state.

3. The fastening system of claim 1, wherein the first sheet material and the second sheet material are relatively movable when the fastening system is in the unlocked state, and the spring element is capable of imparting a force to the connecting element that moves toward the second sheet material, thereby causing the ramp of the connecting element to slide in the guide portion of the second sheet material until the connecting element protrudes into the second aperture of the second sheet material.

4. The fastening system of claim 1, wherein the support base has a third aperture therethrough along an axis thereof, the spring element being disposed within the third aperture.

5. The fastening system of claim 4, wherein an end of the connecting element facing away from the second sheet material passes through the spring element and out of the third aperture of the support seat.

6. The fastening system according to claim 5, wherein an end of the connecting element facing away from the end of the second sheet material is connected with a top cap, the top cap having a width in its radial direction that is greater than the aperture of the third hole;

when the fastening system is in the locking state, the top cap is propped against the supporting seat;

when the fastening system is in the unlocked state, the top cap is separated from the support base.

7. The fastening system of claim 6, wherein the connecting element comprises a body portion and a stop portion extending radially from an outer edge of the body portion and in clearance fit with a bore wall of the three bores;

one end of the spring element, which faces towards the second plate, is abutted against the end face, which is away from the second plate, of the limiting part, and one end of the spring element, which is away from the second plate, is abutted against the supporting seat.

8. The fastening system according to claim 7, wherein a wall surface for forming the third hole includes a first inner peripheral wall and a second inner peripheral wall, an inner diameter of the first inner peripheral wall being smaller than an inner diameter of the second inner peripheral wall, the first inner peripheral wall forming an end of the third hole near the top cap, the second inner peripheral wall forming an end of the third hole away from the top cap;

the wall surface for forming the third hole further comprises a top wall connecting the first inner peripheral wall and the second inner peripheral wall, and one end of the spring element, which is away from the second plate material, abuts against the top wall.

9. The fastening system according to claim 8, wherein an end of the first inner peripheral wall away from the second inner peripheral wall protrudes inward in a radial direction of the third hole to form a stopper projection, the connecting member further includes stopper surfaces protruding inward from the main body portion, and the stopper surfaces and the inclined surfaces are located on both sides of the stopper portion in an axial direction of the connecting member;

the limiting protrusion is in clearance fit with the limiting surface of the connecting element.

10. The fastening system according to claim 1, wherein the support base is formed with a caulking portion extending radially outwardly toward one end of the second plate material, the caulking portion being caulking in the first hole;

the rivet has asymmetric first and second sides, wherein, upon installation, the bevel of the connecting element is placed opposite the first or second side of the rivet, thereby achieving a predetermined positioning of the connecting element.