CN115217824A

CN115217824A - Fastening piece

Info

Publication number: CN115217824A
Application number: CN202210258502.9A
Authority: CN
Inventors: 邹余
Original assignee: Illinois Tool Works Inc
Current assignee: Illinois Tool Works Inc
Priority date: 2021-04-20
Filing date: 2022-03-16
Publication date: 2022-10-21

Abstract

The present application relates to a fastener, comprising: a mounting base and an insertion portion; wherein, the installation base includes: the device comprises a cavity, a first electrode and a second electrode, wherein one side of the cavity is provided with a cavity opening; the mounting groove is positioned above the accommodating cavity, and the width of the mounting groove is smaller than that of the accommodating cavity; and wherein the insertion portion comprises: a retaining portion, a head portion and a neck portion, the head portion being arranged to be able to enter the cavity from the cavity opening; the neck portion is connected to and located between the retaining portion and the head portion, the neck portion being configured such that at least a portion of the neck portion enters the mounting slot when the head portion enters the receptacle. The fastener in this application is easily detachable.

Description

Fastening piece

Technical Field

The present application relates to a fastener, in particular for joining two panels, which can be detached.

Background

The fasteners can connect multiple components together, such as interior trim, frames, panels, and the like of a vehicle. The first member is coupled to the fastening member at the time of coupling, and the fastening member coupled to the first member is mounted at a corresponding position on the second member, so that the first member and the second member are coupled to each other. For example, in one application, it is desirable to attach an interior panel at the roof of a vehicle to a body panel with a fastener so that the interior panel is securely attached to the body panel.

Disclosure of Invention

The present application provides a fastener comprising: a mounting base and an insertion portion; wherein, the installation base includes: the device comprises a cavity and a mounting groove, wherein a cavity opening is formed in one side of the cavity; the mounting groove is positioned above the accommodating cavity, and the width of the mounting groove is smaller than that of the accommodating cavity; wherein the insertion portion includes: a retaining portion, a head portion and a neck portion, the head portion being arranged to be able to enter the cavity from the cavity opening; the neck portion is connected to and located between the retaining portion and the head portion, the neck portion being configured such that at least a portion of the neck portion enters the mounting slot when the head portion enters the receptacle.

According to the fastener, the neck comprises an upper section and a lower section, the size of the upper section is larger than that of the lower section, and the lower section can enter the mounting groove.

According to the fastener described above, the mounting base includes a mounting base body having a first side and a second side disposed opposite to each other, and an upper surface, the cavity opening is disposed at the mounting base body second side, the mounting groove communicates with the cavity and extends through the upper surface of the mounting base body and the mounting base body second side, the mounting groove has a width smaller than the upper section dimension of the neck and smaller than the dimension of the head;

wherein the insert portion is movable relative to the mounting base to connect to or disconnect from the mounting base, the fastener has a locked state and an unlocked state, when the insert portion is connected to the mounting base, the lower section of the neck portion is located in the mounting slot, the head portion is located in the cavity, the fastener is in the locked state, and when the insert portion is disconnected from the mounting base, the fastener is in the unlocked state.

The fastener as described above, further comprising: one end of the connecting part is connected with the inserting part, the other end of the connecting part is connected with the mounting base, and the connecting part has certain flexibility.

According to the above fastener, the mounting base further comprises an operating part, the operating part is connected with the first side of the mounting base body, and the operating part is annular or hook-shaped.

According to the fastener, the mounting base main body further comprises a lower window and an elastic part, the lower window extends downwards from the accommodating cavity until penetrating through the lower surface of the mounting base main body, the elastic part is provided with a movable end, and the movable end is located in the lower window and can move in the lower window.

According to the above fastener, the head has a recess formed by recessing inward from an outer side of the head, and the movable end of the elastic portion enters the recess when the fastener is in the locked state.

According to the above fastener, the insertion portion includes a base plate disposed between the neck portion and the holding portion, the holding portion includes a support portion connected to one side of the base plate and extending in a direction away from the base plate, and a pair of holding wings each including a holding wing main body whose proximal end is connected to a distal end of the support portion and a holding wing extension portion whose proximal end extends obliquely in a direction toward the base plate and away from each other and which is connected to a distal end of the holding wing main body and extends beyond the holding wing main body in a direction away from the base plate.

According to the above fastening device, the holding portion further includes a pair of resilient pieces, the pair of resilient pieces are respectively located on two sides of the supporting portion, and each of the pair of resilient pieces extends obliquely from the upper surface of the substrate toward a direction away from the supporting portion and the substrate.

According to the above fastener, the fastener is made of thermoplastic material by integral molding.

The fastener in this application can be connected first part and second part are firm, can conveniently be dismantled in narrow and small installation space.

Drawings

FIG. 1A is a perspective view of a first embodiment of a fastener of the present application in an unlocked state;

FIG. 1B is a perspective view of another angle of the fastener of FIG. 1A;

FIG. 1C is an elevation view of the fastener of FIG. 1A;

FIG. 1D is a side view of the fastener of FIG. 1A;

FIG. 2A isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1C;

FIG. 2B is a cross-sectional view taken along line B-B of FIG. 1D;

FIG. 3A is a perspective view of the fastener of FIG. 1A in a locked condition;

FIG. 3B is a cross-sectional view of the fastener of FIG. 3A;

FIG. 4 is a perspective view of the first member, fastener, and second member;

FIG. 5A is a cross-sectional view of the fastener separated from the second component;

FIG. 5B is a cross-sectional view of the second member and the first member mounted;

fig. 5C is a cross-sectional view of the first member, second member and fastener in place.

FIG. 6A is a cross-sectional view of a fastener installed on a first component and a second component in an unlocked state;

FIG. 6B is a perspective view of the fastener attached to the first component separated from the second component;

FIG. 6C is a perspective view of the fastener and the first member when they are connected to each other;

FIG. 6D is a cross-sectional view of the fastener separated from the first member;

FIG. 7A is a perspective view of a second embodiment of a fastener of the present application;

fig. 7B is a side view of the fastener of fig. 7A.

Detailed Description

Various embodiments of the present application will now be described with reference to the accompanying drawings, which form a part hereof. It should be understood that although directional terms such as "front," "rear," "upper," "lower," "left," "right," and the like may be used herein to describe various example structural portions and elements of the application, these terms are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the embodiments disclosed herein can be arranged in a variety of orientations, these directional terms are used for purposes of illustration only and are not to be construed as limiting.

Fig. 1A is a perspective view of a first embodiment of a fastener 100 of the present application in an unlocked state, fig. 1B is a perspective view of another angle of the fastener 100 of fig. 1A, fig. 1C is a front view of the fastener 100 of fig. 1A, and fig. 1D is a side view of the fastener 100 of fig. 1A. Fig. 1A-1D illustrate the fastener 100 in an uninstalled state.

As shown in fig. 1A-1D, fastener 100 includes an insert 101 and a mounting base 102. The insertion portion 101 is movable relative to the mounting base 102 so as to be connected to or disconnected from the mounting base 102. The insertion portion 101 can be fitted with the mounting base 102 to connect the first member and the second member. In one embodiment of the present application, the fastener 100 further comprises a connecting portion 103, and the insertion portion 101, the mounting base 102 and the connecting portion 103 are integrally formed of a thermoplastic material (e.g., nylon), wherein the insertion portion 101 and the mounting base 102 have certain strength; the connecting portion 103 is thin and flexible, and can move within a certain range. In one embodiment of the present application, the connection portion 103 may be separately manufactured and then connected to the insertion portion 101 and the mounting base 102. In another embodiment of the present application, the fastener 100 includes only the insertion portion 101 and the mounting base 102, and does not include the connection portion 103.

As also shown in fig. 1A-1D, the fastener 100 has a length direction L, a width direction W, and a height direction H as shown. The insertion portion 101 includes a base plate 105, a holding portion 111, a neck portion 112, and a head portion 141. The substrate 105 has a substantially plate shape and has an upper surface 107 facing away from the mounting base 102 and a lower surface 108 facing the mounting base 102, the holding portion 111 is connected to the upper surface 107 of the substrate 105, one end of the neck portion 112 is connected to the lower surface 108 of the substrate 105, and the other end of the neck portion 112 is connected to the head portion 141. The holding portion 111 includes a support portion 113 and a pair of holding

wings

115, 116. The support portion 113 extends upward in the height direction from the upper surface 107 of the base plate 105, and the retaining

wings

115 and 116 are located on both sides of the support portion 113 in the width direction of the fastener 100, respectively. One end of each of the retaining

wings

115 and 116 is connected to the distal end of the supporting portion 113 and extends obliquely outward toward the base plate 105, so that the extending direction of the retaining

wings

115 and 116 forms an angle with the supporting portion 113. The inner sides of the distal ends of the holding

wings

115 and 116 are spaced apart from the support portion 113 so that the holding

wings

115 and 116 can move within a certain range with respect to the support portion 113.

As shown in fig. 1B, the retaining wing 115 has a retaining wing main body 128 and a retaining wing extension 123. Wherein the retention wing body 128 includes a forward section 121 and a rearward section 122. Wherein one end of the front section 121 of the retaining wing body 128 is connected to the distal end of the support portion 113 and the other end extends toward the base plate 105. The outer side of the front section 121 of the main body 128 is substantially inclined and forms an angle with the extending direction of the support portion 113. The rear section 122 of the retaining wing body 128 is recessed towards the support 113, forming a recess 124, the rear section 122 of the retaining wing body 128 extending substantially parallel to the extension direction of the support 113. The holding wing extension 123 is connected at one end to the rear section 122 and extends beyond the front section 121 and the rear section 122 of the holding wing main body 128 in a direction substantially perpendicular to the support portion 113. The retaining wing extensions 123 are spaced from the base plate 105. Similarly, the retaining wing 116 has a retaining wing body 129 and a retaining wing extension 127. Wherein the retention wing body 129 comprises a forward section 125 and a rearward section 126.

The holding portion 111 further includes a pair of

resilient pieces

131 and 132, and the

resilient pieces

131 and 132 are respectively located on both sides of the supporting portion 113 in the length direction of the fastener 100. A pair of

resilient pieces

131 and 132 extend upward and away from the support portion 113 from the upper surface of the substrate 105, respectively. The connection of the pair of

resilient pieces

131 and 132 and the substrate 105 is close to the support portion 113. In the width direction of the fastener 100, the widths of the

elastic sheets

131 and 132 are smaller than the width of the substrate 105, one side of the elastic sheet 131 is flush with the first side edge of the substrate 105, and the other side of the elastic sheet is spaced from the second side edge of the substrate 105. One side of the elastic sheet 132 is flush with the second side edge of the substrate 105, and the other side of the elastic sheet is spaced from the first side edge of the substrate 105. In the height direction of the fastener 100, the respective distal ends of the pair of

resilient pieces

131 and 132 exceed the height of the retaining wing extensions 123 of the retaining

wings

115 and 127 of the retaining wings 116, and are substantially flush with the upper portions of the rear sections 122 of the retaining

wings

115 and 126 of the retaining wings 116. The pair of

resilient pieces

131 and 132 have a certain elasticity and can be bent toward the substrate 105 when receiving a downward external force. The holding portion 111 is used for connection with the first member.

As shown in fig. 1A and 1B, a neck 112 extends downward from the lower surface 108 of the substrate 105. The neck 112 includes an upper section 143 and a lower section 142. The upper section 143 is generally cylindrical and is connected to the base plate 105. The lower section 142 is connected at both ends to the head 141 and the upper section 143, respectively. At least a part of the head portion 141 is cylindrical, and a side of the head portion 141 away from the connection portion 103 in a length direction of the fastener 100 has a concave portion 145, and the concave portion 145 is formed to be recessed inward from an outer side and a lower surface of the head portion 141. The top and side surfaces of the recess 145 form an upper abutment surface 158 and a side abutment surface 159, respectively. The lower section 142 of the neck 112 includes a generally cylindrical main body portion 151 and an attachment portion 152 connected thereto. The body portion 151 has an outer diameter smaller than the outer diameter of the head portion 141 and smaller than the outer diameter of the upper section 143. The attachment portion 152 is located on a side of the lower section 142 remote from the connection portion 103 and extends to be flush with the head portion 141 and the upper section 143. The maximum width of the lower section 142 of the neck 112 in the width direction W of the fastener 100 is less than the outer diameter of the head 141 and less than the outer diameter of the upper section 143, so that the lower section 142 of the neck 112 is a thinner portion of the neck 112.

As shown in fig. 1A to 1D, the mounting base 102 includes a mounting base main body 161 and an operating portion 162, the mounting base main body 161 having a first side 165 close to the connection portion 103 and a second side 166 far from the connection portion 103. The operation portion 162 is connected to a first side 165 of the mounting base main body 161. The operation portion 162 has a hollow ring shape, and an operator can insert a hook-shaped tool into the hollow space of the operation portion 162 to move the mounting base 102. In other embodiments, the handle portion 162 may be non-closed loop, such as a hook, so long as it is convenient to engage with a hook tool. Mounting base 102 has a pocket 168 formed by being recessed inwardly from second side 166 of mounting base body 161, pocket 168 having a pocket opening 169 located on second side 166. That is, pocket 168 extends through second side 166, forming pocket opening 169. The mounting base 102 also has a flat upper surface 171 and a mounting groove 181, the mounting groove 181 being generally U-shaped with an opening at one end. The opening 183 of the mounting groove 181 faces the second side 166. The mounting groove 181 is positioned above the cavity 168 and communicates with the cavity 168. Opening 183 of mounting groove 181 communicates with chamber opening 169. The insert 101 is able to enter the mounting base 102 from the opening 183 of the mounting slot 181 and the pocket opening 169.

The width of the mounting groove 181 is slightly greater than the maximum width of the lower section 142 of the neck 112 in the width direction of the fastener 100, so that the lower section 142 of the neck 112 can smoothly enter the mounting groove 181. And the width of the mounting groove 181 is smaller than the maximum width of the upper section 143 of the neck 112 so that the upper section 143 of the neck 112 cannot enter the mounting groove 181. When the lower section 142 of the neck 112 enters the mounting groove 181, the head 141 simultaneously enters the cavity 168. In the present application, the shape of the head 141 generally matches the shape of the pocket 168 such that the head 141 is less prone to wobbling in the pocket 168.

Mounting base body 161 further includes a lower window 174 and a resilient portion 175, lower window 174 extending downwardly from pocket 168 until it extends through the lower surface of mounting base body 161. The resilient portion 175 is located in the lower window 174. The elastic portion 175 has a connecting end 186 and a movable end 187, wherein the connecting end 186 is connected to the inner edge 178 of the lower window 174 near the second side 166 of the mounting base body 161, and the movable end 187 is in a suspended state, so that the movable end 187 of the elastic portion 175 can move within the lower window 174. The height of the distal end of the spring 175 in the height direction of the fastener 100 is greater than the height of the spring 175 at the junction with the inner edge 178 of the lower window 174.

The connection portion 103 is in the form of a flat strip, one end of the connection portion 103 is connected to the substrate 105, the other end is connected to the first side 165 of the mounting base body 161, and a smooth transition is formed between the connection portion and the upper surface 171 of the mounting base 102.

Fig. 2A isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1C, fig. 2B isbase:Sub>A sectional view taken along line B-B in fig. 1D, and fig. 2A and 2B more clearly show the structures of the insertion portion 101 and the mounting base 102. Referring to fig. 1C and 2A, the front section 121 of the holding wing 115 and the front section 125 of the holding wing 116 of the holding portion 111 form a reverse taper tapering from top to bottom, and the bottom of each of the front section 121 of the holding wing 115 and the front section 121 of the holding wing 116 forms a hip 201. The rear section 122 of the retention wing 115 and the rear section 126 of the retention wing 116 form a thinner waist 202. The retaining

wing extensions

123 and 127 of the retaining

wings

115 and 116, respectively, extend outward beyond the two side edges of the base plate 105 to form a pair of

claw portions

203 and 204. When the fastener is attached to the first component, the first component is flush with the waist portion 202 of the retaining portion 111 and is thus not easily movable relative to the fastener. A pair of jaws are used to remove the fastener 100 from the first component, as will be described in more detail below.

Fig. 3A is a perspective view of the fastener of fig. 1A in a locked state, fig. 3B is a cross-sectional view of the fastener of fig. 3A, and fig. 3A and 3B illustrate the locked state of the fastener.

As shown in FIG. 3A and FIG. 3B, when the fastener 100 is in the locked position, the lower section 142 of the neck 112 is positioned in the mounting groove 181 and the head 141 is positioned in the pocket 168. The side of the head 141 remote from the second side 166 abuts against the inner wall of the pocket 168 and/or the lower section 142 of the neck 112 abuts against the bottom of the U-shape of the mounting slot 181, so that along the length of the fastener 100 the insert 101 cannot move relative to the mounting base 102 in a direction away from the second side 166 of the mounting base lower body. The outer diameter of the head portion 141 is larger than the width of the mounting groove 181, so that the head portion 141 cannot be disengaged from the mounting groove 181 in the height direction of the fastener 100, that is, the insertion portion 101 cannot be moved upward relative to the mounting base 102. Meanwhile, the upper section 143 of the neck 112 has a size larger than the width of the mounting groove 181, so that the lower section 142 of the neck 112 cannot enter downward into the mounting groove 181, that is, the insertion part 101 cannot move downward in the height direction with respect to the mounting base 102. An upper portion of the distal end of the elastic portion 175 is partially located in the recess 145 of the head 141, and the upper abutment surface 158 of the recess 145 can come into contact with the top of the elastic portion 175, thereby restricting the insertion portion 101 from moving downward in the height direction of the fastener 100 relative to the mounting base 102. The side abutment surface 159 of the recess 145 can contact the side of the elastic portion 175, thereby restricting movement of the insertion portion 101 relative to the mounting base 102 toward the second side 166 in the longitudinal direction of the fastener 100. In summary, when the fastener 100 is in the locked state, the insertion portion 101 cannot move relative to the mounting base 102, or can move only slightly within a small range.

FIG. 4 is a perspective view of the first member, fastener, and second member. As shown in fig. 4, fastener 100 is used to connect first component 401 and second component 402. In one embodiment of the present application, the first component 401 is a sheet metal of a vehicle and the second component 402 is an interior trim panel at the roof of the vehicle. When the first member 401 and the second member 402 are connected, the fastener 100 is connected to the second member 402, and then the fastener 100 connected to the second member 402 is connected to the first member 401, whereby the first member 401 is connected to the second member 402.

The first part 401 has a hole 411 for mating with the fastener insertion portion 101. The second part 402 has a panel 421 and a box portion 422. The bottom of the box portion 422 is connected to the panel 421, one side of the box portion 422 has an opening 431, and the top of the box portion 422 has a groove 433. The top of the box portion 422 has a top side edge 435 on the side thereof adjacent the opening 431, and a slot 433 is formed extending from the top side edge 435 inwardly of the top of the inner box portion. The groove 433 penetrates the top of the box part 422 in the vertical direction, and the groove 433 communicates with the space inside the box part 422. The slot 433 includes a central portion 441 and a guide portion 442, the central portion 441 being generally circular and having an inner diameter that matches the size of the upper section 143 of the neck 112, and the guide portion 442 being generally trapezoidal in shape that increases from the central portion toward the top side edge 435 to facilitate guiding the fastener 100 into the central portion 441. In the present embodiment, the inner diameter of the central portion 441 is equal to or larger than the outer diameter of the head portion 141, that is, the neck portion 112 can be inserted or extracted from the central portion 441.

Fig. 5A is a sectional view of the fastener separated from the second member, fig. 5B is a sectional view of the second member and the first member mounted, and fig. 5C is a sectional view of the first member, the second member, and the fastener mounted in place. Fig. 5A-5C illustrate the installation process of the fastener.

As shown in connection with fig. 1A and 5A, prior to installation of the fastener 100 in the second component 402, the fastener is confirmed to be in a locked condition. Next, the upper section 143 of the neck 112 of the fastener 100 in the locked state is placed in a position substantially flush with the top groove 433 of the box portion of the second member 402, and the second side 166 of the mounting base body 161 is directed toward the opening of the groove 433. Fastener 100 is pushed into slot 433 until upper section 143 is located in central portion 441 of slot 433. Wherein the narrowest portion of the guide portion 442 is smaller than the outer diameter of the upper section 143 of the neck 112, so that the upper section 143 is subjected to a certain external force when entering the central portion through the guide portion 442, so that the upper section 143 of the neck 112 and the top of the box portion 422 are deformed to squeeze the upper section 143 of the neck 112 into the central portion 441.

Fig. 5B is a schematic view of the fastener in the second member 402, and in the state shown in fig. 5B, the fastener 100 is connected to the second member 402 and is not easily detached from the second member 402.

Fig. 5C is a view showing a state in which the fastener and the second member are connected to the first member, and the upper insertion portion 101 of the fastener 100 is inserted into the hole 411 of the first member 401, and the edge of the hole 411 of the first member 401 first comes into contact with the upper sections 143 of the pair of holding

wings

115 and 116 and is pressed and bent inward to be deformed until the hip 201 of the pair of holding wings passes through the hole 411, and at this time, the waist portions 202 of the pair of holding

wings

115 and 116 are flush with the first member 401, and the pair of holding

wings

115 and 116 are deformed again, and the hip 201 abuts against the first side of the first member 401, and the fastener 100 is restricted from coming out of the first member 401. The pair of

resilient pieces

131 and 132 abuts against the second side of the first member 401, so that the first member 401 is less prone to rattle relative to the fastener 100. At this time, the fastener 100 connects the first member 401 and the second member 402.

Fig. 6A is a sectional view showing the fastener mounted on the first member and the second member in an unlocked state, fig. 6B is a perspective view showing the fastener attached to the first member separated from the second member, fig. 6C is a perspective view showing the fastener and the first member attached to each other, and fig. 6D is a sectional view showing the fastener separated from the first member. Fig. 6A-6D illustrate the process of detaching the fastener 100 from the first part 401 and the second part 402. Wherein fig. 6A and 6B are sectional views taken along the length direction and the height direction of the fastener 100, and fig. 6C and 6D are sectional views taken along the width direction and the height direction of the fastener 100.

When it is desired to separate the second part 402 from the first part 401, an operator may insert a hook or similar tool into the opening 431 of the box portion 422 and into the operating portion 162 of the mounting base 102. At this time, the operator pulls the hook to move the mounting base 102 relative to the insertion portion 101, so that the upper section 143 of the neck portion 112 of the insertion portion 101 slides out of the mounting groove 181, and the insertion portion 101 is separated from the mounting base 102. During the process that the operator pulls the mounting base 102 to move leftwards by using a tool, the head 141 is in contact with the upper part of the elastic part 175 and applies a rightward pushing force to the upper part of the elastic part 175, the upper part of the elastic part 175 is pressed by an external force and deformed and bent downwards, so that the head 141 can be separated from the cavity 168 over the upper part of the elastic part 175, and the fastener 100 reaches an unlocking state.

When the fastener 100 is in the unlocked state, as shown in FIG. 6B, the second member 402 is moved downward, and the neck 112 is disengaged from the central portion 441 of the slot 433 of the second member 402, so that the second member 402 is separated from the fastener 100. In the present embodiment, the outer diameter of the head portion 141 is not larger than the inner diameter of the central portion 441, and therefore the second member 402 can be moved downward in the height direction of the fastener 100 to be separated from the fastener 100.

As shown in fig. 6C, when the fastener 100 is attached to the first member 401, the inner edge of the hole 411 of the first member 401 enters the waist portion 202 of the holding portion 111, the upper surface of the first member 401 abuts against the hip 201 of the holding portion 111, and the lower surface of the first member 401 abuts against the distal ends of the pair of

resilient pieces

131 and 132. The first part 401 is clamped between the hip 201 and the pair of

resilient plates

131 and 132. When it is necessary to remove the fastener 100 from the first member 401, the operator applies pressure to the pair of

claw portions

203 and 204, so that the pair of

claw portions

203 and 204 approach each other, thereby bringing the pair of holding

wings

115 and 116 to bend toward the support portion. At this point, the width of the hip 201 is reduced and can be passed through the hole 411, and the operator pulls the fastener 100 downward so that the fastener 100 can be disengaged from the hole 411, thereby separating the fastener 100 from the first component.

As shown in fig. 6D, the fastener 100 can be removed from the first member 401 by moving downward in the height direction of the fastener 100 by an external force.

The fastener 100 of the present application enables multiple detachments to facilitate vehicle servicing. Fastener 103 can be applicable to narrow and small installation environment in this application, even if operating space is less, also can realize dismantling with the help of tools such as hooks. The insertion portion 101 of the fastener 100 and the mounting base 102 in the present application are connected by the connection portion 103, and can be assembled more easily. In order to avoid that the assembly efficiency is affected by losing one of the insertion part 101 and the mounting base 102 during the mounting or dismounting process. The fastener 100 in the present application remains locked after shipment for ease of transportation and installation, and the fastener 100 is adjusted to an unlocked state only when needed for declivity.

FIG. 7A is a perspective view of a second embodiment of the fastener of the present application, and FIG. 7B is a side view of the fastener of FIG. 7A. Similar to the embodiment shown in fig. 1A, except that the head 741 of the fastener 700 shown in fig. 7A and 7B is sized differently. As shown in fig. 7A and 7B, the head 741 of the lower portion 712 of the insertion portion is substantially in the shape of an elliptical cylinder, and the maximum width of the head 741 in the width direction of the fastener 700 is larger than the inner diameter of the central portion 441 of the groove 433 of the second member 402, so that the second member 402 cannot be directly moved downward to disengage the fastener 700 in the unlocked state when the fastener 700 is removed from the second member 402; instead, the slot 433 in the top of the box portion of the second member 402 is aligned with the lower section 142 of the neck 112, pulling the second member 402, causing the second member 402 fastener 700 to disengage. The embodiment shown in fig. 7A is applicable to an embodiment in which the second member 402 can be moved in the horizontal direction.

While only certain features of the application have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the application.

Claims

1. A fastener, characterized in that the fastener comprises:

a mounting base (102) and an insertion section (101);

wherein the mounting base (102) comprises:

a cavity (168) with a cavity opening (169) at one side;

the mounting groove (181) is positioned above the cavity (168), and the width of the mounting groove (181) is smaller than that of the cavity (168); and

wherein the insertion portion (101) comprises:

a holding section (111);

a head (141), said head (141) being arranged to be able to enter said cavity (168) from said cavity opening (169);

a neck (112), the neck (112) being connected to the holder (111) and the head (141) and being located between the holder (111) and the head (141), the neck (112) being configured such that at least a portion of the neck (112) enters the mounting slot (181) when the head (141) enters the receptacle (168).

2. The fastener of claim 1, wherein:

the neck (112) comprises an upper section (143) and a lower section (142), the size of the upper section (143) is larger than that of the lower section (142), and the lower section (142) can enter the mounting groove (181).

3. The fastener of claim 1, wherein:

the mounting base (102) comprises a mounting base body (161), the mounting base body (161) has a first side (165) and a second side (166) which are oppositely arranged, and an upper surface (171), the cavity opening (169) is arranged on the second side (166) of the mounting base body (161), the mounting groove (181) is communicated with the cavity (168) and extends through the upper surface (171) of the mounting base body (161) and the second side (166) of the mounting base body (161), and the width of the mounting groove (181) is smaller than the size of the upper section (143) of the neck (112) and smaller than the size of the head (141);

wherein the insert (101) is movable relative to the mounting base (102) to connect to or disconnect from the mounting base (102), the fastener has a locked state and an unlocked state, the lower section (142) of the neck (112) is located in the mounting slot (181), the head (141) is located in the receptacle (168), the fastener is in the locked state when the insert (101) is connected to the mounting base (102), and the fastener is in the unlocked state when the insert (101) is disconnected from the mounting base (102).

4. The fastener of claim 1, further comprising:

the connecting part (103), one end of connecting part (103) is connected with insertion portion (101), the other end with install the base (102) and be connected, connecting part (103) have certain flexibility.

5. The fastener of claim 1, wherein:

the mounting base (102) further comprises an operating part (162), the operating part (162) is connected with the first side (165) of the mounting base body (161), and the operating part (162) is annular or hook-shaped.

6. The fastener of claim 3, wherein:

the mounting base body (161) further comprises a lower window (174) and an elastic part (175), wherein the lower window (174) extends downwards from the accommodating cavity (168) until penetrating through the lower surface of the mounting base body (161), the elastic part (175) is provided with a movable end (187), and the movable end (187) is located in the lower window (174) and can move in the lower window (174).

7. The fastener of claim 6, wherein:

the head (141) has a recess (145), the recess (145) being formed by being recessed inward from an outer side of the head (141), and a movable end (187) of the elastic portion (175) enters the recess (145) when the fastener is in the locked state.

8. The fastener of claim 1, wherein:

the insertion portion (101) includes a base plate (105) disposed between the neck portion (112) and the holding portion (111), the holding portion (111) includes a support portion (113) and a pair of holding wings (115, 116), the support portion (113) is connected to one side of the base plate (105) and extends in a direction away from the base plate (105), each of the pair of holding wings (115, 116) includes a holding wing main body (128) and a holding wing extension portion (123), a proximal end of the holding wing main body (128) is connected to a distal end of the support portion (113), the holding wing main body (128) extends obliquely in a direction toward the base plate (105) and away from each other, and the holding wing extension portion (123) is connected to a distal end of the holding wing main body (128) and extends beyond the holding wing main body (128) in a direction away from the base plate (105).

9. The fastener of claim 1, wherein:

the holding portion (111) further includes a pair of resilient pieces (131, 132) respectively located on both sides of the supporting portion (113), each of the pair of resilient pieces (131, 132) extending obliquely from an upper surface of the substrate (105) toward a direction away from the supporting portion (113) and the substrate (105), respectively.

10. The fastener of claim 1, wherein:

the fastener is made of thermoplastic material in an integral molding mode.