Fastening push nail easy to nail in

Abstract

A fastening push nail easy to nail in comprises a push nail fastener and a push nail. The push nail fastener comprises a mounting part, a limiting hole formed in the mounting part, and a fixing barrel arranged on one side of the mounting part. The fixed barrel comprises a fixed barrel main body, a locking part arranged at one end of the fixed barrel main body, and a receding opening formed in the fixed barrel main body. The push nail comprises a push nail main body, an end cover arranged at one end of the push nail main body, a plurality of limiting ridges arranged on the push nail main body, and a clamping part arranged at one end of the push nail main body. And the shape of the push nail main body is matched with that of the limiting hole. When the push nail main body is inserted into the limiting hole, the push nail main body is coupled with the limiting hole, so that the position of the push nail in the circumferential direction is fixed. Interference fit is formed between the locking part and the clamping part, so that the push nail is fixed in the push nail fastener.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, and more particularly to a fastening push pin that is easy to drive in. Background Technology

[0002] Fasteners are various mechanical components used to connect, fix, seal, or adjust parts. They are widely used in industrial production, construction, transportation, and daily life, and are an indispensable and important part of various mechanical equipment.

[0003] Chinese patent application CN114607690B discloses a fastening device and fastening assembly for fixing components, comprising a fastening device and a connector. The fastening device includes a body and a snap-fit ​​portion. The body includes a connecting portion and an elastic portion. Each elastic portion has at least one clearance groove. Each snap-fit ​​portion includes at least one snap-fit ​​connector inserted into the clearance groove and a push-fit head disposed at the free end of the snap-fit ​​portion. The connector includes a pressing portion and a positioning portion.

[0004] The fastening device and fastening assembly for fixing components require force to press the pressing part to reduce the opening angle of the positioning part before inserting it into the fastening device. Then, the pressing part is released, allowing the positioning part to open and lock into the fastening device. Therefore, the fastening device and fastening assembly for fixing components require considerable pressing force to insert the connector into the fastening device. Furthermore, because the pressing part of the connector is inclined when the positioning part opens, and the connector is made of metal with a smooth surface, it is prone to slipping during pressing. Summary of the Invention

[0005] In view of this, the present invention provides an easy-to-drive fastening push pin to solve the above problems.

[0006] An easy-to-drive fastening push pin includes a push pin fastener and a push pin inserted into the push pin fastener. The push pin fastener includes a mounting portion, a limiting hole formed on the mounting portion, and a fixing barrel disposed on one side of the mounting portion. The fixing barrel includes a fixing barrel body, a locking portion disposed at one end of the fixing barrel body, and a clearance opening disposed on the fixing barrel body. The push pin includes a push pin body, an end cap disposed at one end of the push pin body, a plurality of limiting ridges disposed on the push pin body, and a clamping portion disposed at one end of the push pin body. The shape of the push pin body matches the limiting hole. When the push pin body is inserted into the limiting hole, it couples with the limiting hole to fix the circumferential position of the push pin. An interference fit is formed between the locking portion and the clamping portion.

[0007] Furthermore, the limiting hole includes a main hole, a plurality of limiting slots spaced apart on the circumference of the main hole, and at least two protrusions disposed within the limiting slots.

[0008] Furthermore, the push pin fastener includes a mounting portion, a limiting hole formed on the mounting portion, a groove provided on one side of the mounting portion, and a fixing portion provided on the side of the mounting portion opposite to the groove.

[0009] Furthermore, the pusher includes a pusher body, an end cap disposed at one end of the pusher body, a snap-fit ​​ridge disposed on the side of the end cap facing the pusher body, and a limiting slot disposed at the end of the pusher body opposite to the end cap.

[0010] Furthermore, the fixing part is disposed on the side of the mounting part opposite to the groove along the outer contour of the limiting hole, and includes two fastening bodies fixedly disposed on one side of the mounting part, two clamping parts respectively disposed on the fastening bodies, one on one side of the fastening bodies, and a shrink-fitting connecting part disposed at one end of the clamping part.

[0011] Furthermore, the push-pin fastener includes a fixed barrel and a mounting part fixedly disposed at one end of the fixed barrel.

[0012] Furthermore, the fixing bucket includes an adapter, a locking part disposed at one end of the adapter, and a clearance opening disposed on the locking part.

[0013] The pusher includes a pusher body, an inlet end provided at one end of the pusher body, and four clamping grooves provided along the circumference of the pusher body.

[0014] Compared with the prior art, the present invention provides an easy-to-drive fastening push pin, comprising a push pin fastener and a push pin. The push pin fastener includes a mounting portion, a limiting hole formed on the mounting portion, and a fixing barrel disposed on one side of the mounting portion. The push pin includes a push pin body, an end cap disposed at one end of the push pin body, multiple limiting ridges disposed on the push pin body, and a clamping portion disposed at one end of the push pin body. The limiting hole and the limiting ridges are coupled to fix the position of the push pin circumferentially. Simultaneously, a locking portion and a clearance opening are provided on the fixing barrel. When the push pin is inserted into the fixing barrel, the locking portion and the clamping portion are interference-fitted, thereby clamping and fixing the push pin. Simultaneously, when the push pin is inserted into the push pin fastener, the limiting ridges are engaged in the clearance opening, forming a secondary clamping, further strengthening the fixation of the push pin. The easy-to-drive fastening push pin can be driven into the push pin fastener simply by using a hammer along the axis of the push pin, or by directly pushing the push pin into the push pin fastener. Therefore, the easy-to-drive fastening push pin not only provides a firm clamping between the push pin fastener and the push pin, but also makes driving it in easy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a fastening push pin that is easy to drive in, provided for the first embodiment of this utility model.

[0016] Figure 2 for Figure 1 An exploded view of the easy-to-drive fastening push pin.

[0017] Figure 3 This is a schematic diagram of a fastening push pin that is easy to drive in, provided for the second embodiment of this utility model.

[0018] Figure 4 for Figure 3 An exploded view of the easy-to-drive fastening push pin.

[0019] Figure 5 This is a schematic diagram of a fastening push pin that is easy to drive in, provided in the third embodiment of this utility model.

[0020] Figure 6 for Figure 5 A schematic diagram of the structure of a push-pin fastener that is easy to drive in.

[0021] Figure 7 for Figure 5 A schematic diagram of the structure of an easy-to-drive fastening push pin. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further detail below. It should be understood that the description of this utility model herein is not intended to limit the scope of protection of this utility model.

[0023] like Figures 1 to 2 The diagram shows a structural schematic of an easily driven fastening push pin according to the first embodiment of this utility model. The easily driven fastening push pin includes a push pin fastener 10 and a push pin 20 inserted into the push pin fastener 10. It is conceivable that the easily driven fastening push pin should also include other related functional components, such as a carrier and attachment elements for fixing the easily driven fastening push pin, etc., all of which are prior art known to those skilled in the art and will not be described in detail here.

[0024] The push-pin fastener 10 includes a mounting part 11, a limiting hole 12 opened on the mounting part 11, and a fixing bucket 13 disposed on one side of the mounting part 11.

[0025] The mounting portion 11 can be a disc-shaped structure. The mounting portion 11 facilitates the installation of the push-pin fastener on the carrier used for fixing the easy-to-drive fastener push-pin when using it. Simultaneously, when the push-pin 20 is inserted into the push-pin fastener 10, the mounting portion 11 can also abut against the end cap 22 of the push-pin 20, thereby limiting the insertion depth of the push-pin 20.

[0026] The limiting hole 12 is centrally located on the mounting part 11 and is used to limit the position of the push pin 20 on its circumference. The limiting hole 12 includes a main hole 121, a plurality of limiting grooves 122 spaced apart on the circumference of the main hole 121, and at least two locking protrusions 123 disposed in the limiting grooves 122.

[0027] The main hole 121 can be circular and is concentrically arranged with the mounting part 11. The size of the main hole 121 is adapted to the push pin 20 and passes through the mounting part 11 so that the push pin 20 can be smoothly inserted into the push pin fastener 10.

[0028] The plurality of slots 122 are equally spaced along the circumference of the main hole 121. In this embodiment, four slots 122 are symmetrically arranged along the outer contour of the main hole 121. The slots 122 may be U-shaped, and one side of their open end is connected to the main hole 121.

[0029] The locking protrusions 123 are symmetrically arranged within the locking grooves 122 and are located at the ends of the locking grooves 122 opposite to the main hole 121. Both the locking grooves 122 and the locking protrusions 123 are used to limit the displacement of the push pin 20 on its circumference, and will therefore be described in detail below in conjunction with the push pin 20.

[0030] The fixing barrel 13 is used to clamp the push pin 20, thereby restricting the axial displacement of the push pin 20. The fixing barrel 13 includes a fixing barrel body 131, a locking part 132 disposed at one end of the fixing barrel body 131, and a clearance opening 133 disposed on the fixing barrel body 131.

[0031] The fixing barrel body 131 has a cylindrical structure, and its diameter is adapted to match the diameter of the push pin 20, and is used to accommodate the push pin 20. The axial length of the fixing barrel body 131 is matched with the length of the push pin 20, so that when the push pin 20 is inserted into the fixing barrel 13, one end of it can reach the locking part 132, thereby clamping and fixing it through the locking part 132.

[0032] The locking part 132 is located at the end of the fixing barrel body 131 away from the mounting part 11, and is used to clamp the push pin 20. The locking part 132 has a frustum-shaped structure, and the diameter of its larger diameter side is adapted to the diameter of the fixing barrel body 131 and is fixedly connected to the fixing barrel body 131. The diameter of the other side of the locking part 132, that is, the smaller diameter side, is smaller than the diameter of the fixing barrel body 131 and smaller than the diameter of the push pin 20.

[0033] The clearance opening 133 is arranged in a cross shape, thereby dividing the fixed bucket 13 into four halves.

[0034] The clearance opening 133 extends through the locking part 132 along the axial direction of the fixed barrel body 131. The clearance opening 133 allows the locking part 132 to be opened when one end of the push pin 20 is inserted into it, enabling the push pin 20 to be inserted smoothly. Furthermore, since the diameter of the locking part 132 is smaller than the diameter of the push pin 20, when the push pin 20 is inserted into the locking part 132, an interference fit is formed between the locking part 132 and the push pin 20 under the action of the retracting force of the locking part 132, thereby clamping the push pin 20.

[0035] The pusher 20 includes a pusher body 21, an end cap 22 disposed at one end of the pusher body 21, a plurality of limiting ridges 23 disposed on the pusher body 21, and a clamping part 24 disposed at one end of the pusher body 21.

[0036] The end cap 22 is fixedly disposed at one end of the pusher body 21 and is adapted to the mounting part 11. The end cap 22 facilitates pushing or nailing the pusher 20 into the pusher fastener 10.

[0037] The number of limiting ridges 23 is the same as the number of slots 122, and they are arranged on the push pin body 21 corresponding to the arrangement of the slots 122. The width of the limiting ridges 23 is adapted to the width of the slots 122 to ensure that the push pin 20 can pass smoothly through the limiting hole 12. Furthermore, a limiting groove 231 should also be provided on the two limiting ridges 23 corresponding to the protrusions 123. The limiting groove 231 is arranged on the limiting ridges 23 along the axial direction of the push pin body 21. When the push pin 20 is inserted into the push pin fixing member 10, the limiting ridges 23 are first aligned with the slots 122, and the limiting groove 231 is aligned with the protrusions 123. Then, the push pin 20 is pressed into the limiting hole 12 until the clamping part 24 is inserted into the locking part 132. At this time, the limiting ridge 23 is positioned within the relief opening 133, allowing the fixing barrel body 131 to clamp the limiting ridge 23, further strengthening the clamping force of the fixing barrel 13 on the push pin 20. Simultaneously, the locking protrusion 123 is correspondingly inserted into the limiting groove 231, further restricting the position of the push pin 20 on its circumference. It is understood that, in order to allow the limiting ridge 23 to smoothly insert into the relief opening 133, the width of the side of the limiting ridge 23 away from the end cap 22 can be reduced and contracted into an inverted triangular shape. While the width of the limiting ridge 23 contracts inward, its thickness also decreases simultaneously, forming an introductory inclined surface structure to facilitate the introduction of the limiting ridge 23 into the interval of the fixing barrel 13.

[0038] The clamping part 24 is located at the end of the pusher body 21 away from the end cap 22. The clamping part 24 can be a cylindrical structure with a diameter larger than that of the pusher body 21 and larger than that of the locking part 132. When the pusher 20 is inserted into the fixing barrel 13, the clamping part 24 is inserted into the locking part 132 under the action of the pushing force, and forms an interference fit with the diameter of the locking part 132.

[0039] Compared with the prior art, the present invention provides an easy-to-drive fastening push pin, comprising a push pin fastener 10 and a push pin 20. The push pin fastener 10 includes a mounting portion 11, a limiting hole 12 formed on the mounting portion 11, and a fixing barrel 13 disposed on one side of the mounting portion 11. The push pin 20 includes a push pin body 21, an end cap 22 disposed at one end of the push pin body 21, a plurality of limiting ribs 23 disposed on the push pin body 21, and a clamping portion 24 disposed at one end of the push pin body 21. The limiting hole 12 and the limiting ribs 23 are coupled to fix the position of the push pin 20 on its circumference. Simultaneously, a locking portion 132 and a clearance opening 133 are provided on the fixing barrel 13. When the push pin 20 is inserted into the fixing barrel 13, the locking portion 132 and the clamping portion 24 are interference-fitted, thereby clamping and fixing the push pin 20. Simultaneously, when the push pin 20 is inserted into the push pin fastener 10, the limiting ridge 23 engages within the clearance opening 133, forming a secondary clamping, further strengthening the fixation of the push pin 20. The easy-to-drive fastening push pin can be driven into the push pin fastener 10 simply by using a hammer along the axial direction of the push pin 10, or by directly pushing the push pin 20 into the push pin fastener 10. Therefore, the easy-to-drive fastening push pin not only provides a firm clamping between the push pin fastener 10 and the push pin 20, but also facilitates easy driving.

[0040] like Figures 3 to 4 The diagram shown is a structural schematic of an easy-to-drive fastening push pin provided in the second embodiment of this utility model. The easy-to-drive fastening push pin includes a push pin fastener 30 and a push pin 40 inserted into the push pin fastener 30.

[0041] The push-pin fastener 30 includes a mounting part 31, a limiting hole 32 formed on the mounting part 31, a groove 33 provided on one side of the mounting part 31, and a fixing part 34 provided on the side of the mounting part 31 opposite to the groove 33.

[0042] The mounting portion 31 is circular and serves to support the limiting structures such as the limiting hole 32, the groove 33, and the fixing portion 34. The mounting portion 31 facilitates the installation of the push-pin fastener 30 onto the carrier used to securely connect the easy-to-drive fastener push-pin when using it. Simultaneously, when the push-pin 20 is inserted into the push-pin fastener 10, the mounting portion 31 can also abut against the end cap 42 of the push-pin 40, thereby limiting the insertion depth of the push-pin 40.

[0043] The limiting hole 32 is centrally located on the mounting part 31. The limiting hole 32 can be arranged in a "Z" shape and cooperates with the structure of the push pin 40 to limit the position of the push pin 40 on the circumference. Therefore, the limiting hole 32 will be described in detail below in conjunction with the push pin 40.

[0044] The groove 33 is symmetrically formed on the mounting portion 31 along one diameter, and its depth can be about one-third of the thickness of the mounting portion 31. The groove is used to accommodate the locking ridge 43 and cooperates with the locking ridge 43 to restrict the position of the push pin 40 in the circumferential direction.

[0045] The fixing part 34 is disposed on the side opposite to the groove 32 of the mounting part 31 along the outer contour of the limiting hole 32. It includes two fastening bodies 341 fixedly disposed on one side of the mounting part 31, two clamping parts 342 respectively disposed on the fastening bodies 341, and a shrinkable connecting part 343 disposed at one end of the clamping part 342.

[0046] The fastening bodies 341 are respectively disposed on both sides of the limiting hole 32 at intervals. The cross-sectional shape of the fastening bodies 341 is adapted to the contour of the limiting hole 32.

[0047] Two clamping portions 342 are diagonally offset and disposed on opposite sides of the two fastening bodies 341 for clamping the push pin 40. The clamping portions 342 are angled towards the mounting portion 31, facilitating the insertion of the push pin 40 into the clamping portions 342. The clamping portions 342 are parallel to the axial direction of the fastening bodies 341 on the side facing the shrink-fit connection portion 343, and the two clamping portions 342 overlap each other perpendicular to the axial direction of the fastening bodies 341, thereby forming a gap 344 between the two clamping portions 342.

[0048] The retractable connecting portion 343 is conical in shape, with the diameter of one side of the bottom surface of the cone matching the circumference diameter formed by the fastening body 343, and is fixedly connected to the fastening body 341. The conical shape of the retractable connecting portion 343 connects the ends of the two fastening bodies 341 away from the mounting portion 31, and because its diameter gradually decreases towards the side away from the fastening body 341, it can function as both a connector and a retractable component after the fastening body 341 is opened by the push pin 40.

[0049] A clearance opening 345 is located on the side of the shrink-fit connection 343 near the clamping part 342, and the clearance opening 345 communicates with the gap 344. Therefore, when the push pin 40 is inserted into the clamping part 342, the clearance opening 345 allows the fastening body 341 to open, allowing the push pin 40 to be smoothly inserted into the clamping part 342 and clamped by the clamping part 342 under the retraction force of the fastening body 341.

[0050] The pusher 40 includes a pusher body 41, an end cap 42 disposed at one end of the pusher body 41, a locking ridge 43 disposed on the side of the end cap 42 facing the pusher body 41, and a limiting slot 44 disposed on the side of the pusher body 41 opposite to the end cap 42.

[0051] The cross-sectional shape of the pusher body 41 is consistent with the shape of the limiting hole 32, which is also a "Z" shaped structure, thus facilitating the insertion of the pusher body 41 into the limiting hole 32. After the pusher body 41 is inserted into the limiting hole 32, it is coupled together with the limiting hole 32, thereby restricting the position of the pusher body 41 in the circumferential direction.

[0052] The end cap 22 is fixedly disposed at one end of the pusher body 21 and is adapted to the mounting part 11. The end cap 22 facilitates pushing or nailing the pusher 40 into the pusher fastener 10.

[0053] The locking edge 43 is matched with the groove 33. When the push pin 40 is inserted into the push pin fastener 30, the locking edge 43 is inserted into the groove 33, thereby further restricting the position of the push pin 40 on the circumference.

[0054] The limiting slot 44 is located at the end of the pusher body 41 away from the end cap 22, and is radially parallel to the pusher body 41. When the pusher body 41 is inserted into the clamping part 342 and the gap 344 is formed, the limiting slot 44 will lock into the side of the gap 342 that communicates with the clearance opening 345, thereby preventing the pusher 40 from falling out of the pusher fastener 30.

[0055] like Figures 5 to 7 The diagram shown is a structural schematic of an easy-to-drive fastening push pin provided in the third embodiment of this utility model. The easy-to-drive fastening push pin includes a push pin fastener 50 and a push pin 60 inserted into the push pin fastener 50.

[0056] The push-pin fastener 50 includes a fixed barrel 51 and a mounting part 52 fixedly disposed at one end of the fixed barrel 51.

[0057] The fixed bucket 51 includes an adapter 511, a locking part 512 disposed at one end of the adapter 511, and a clearance opening 513 disposed on the locking part 512.

[0058] The adapter 511 has a cylindrical structure, and its diameter is adapted to match the diameter of the push pin 60. The adapter 511 is used to accommodate the push pin 60.

[0059] The locking part 512 is located at the end of the adapter part 511 away from the mounting part 52, and is used to clamp the push pin 60. The locking part 512 has a frustum-shaped structure, and the diameter of its larger diameter side matches the diameter of the adapter part 511 and is fixedly connected to the adapter part 511. The diameter of the other side of the locking part 512, that is, the smaller diameter side, is smaller than the diameter of the adapter part 511 and smaller than the diameter of the push pin 60. Therefore, when the push pin 60 is inserted into the locking part 512, the locking part 512 can clamp the push pin 60.

[0060] The clearance opening 513, shaped like a cross, divides the locking part 51 into four halves. The clearance opening 513 extends from one side of the locking part 512 towards the side of the adapter part 511, and its depth extends to one side of the adapter part 511. When the push pin 60 is inserted into the locking part 512, the adapter part 512 can expand outwards due to the clearance opening 513, thereby facilitating the insertion of the push pin 60 into the clearance opening 513.

[0061] The mounting part 52 is disc-shaped and is fixedly sleeved on the outside of the adapter part 511. The mounting part 52 facilitates the installation of the push-pin fastener 50 on the carrier for fixing the easy-to-drive fastener push-pin when using the easy-to-drive fastener push-pin.

[0062] The pusher 60 includes a pusher body 61, an inlet end 62 disposed at one end of the pusher body 61, and four clamping grooves 63 disposed along the circumference of the pusher body 61.

[0063] The diameter of the push pin body 61 is matched with the inner diameter of the adapter 511 to ensure that the push pin 60 can be smoothly inserted into the push pin fastener 50.

[0064] The guide end 62 may be conical so that after the push pin 60 is pushed into the fixing barrel 51, the push pin can pass through the bottom end of the locking part 512 of the fixing barrel 51.

[0065] The four clamping slots 63 correspond to the four parts of the locking part 512 separated by the relief openings 513. When the push pin 60 is inserted into the locking part 512, the guide end 62 protrudes from the locking part 512 through the intersection of the relief openings 513 and expands the locking part 512. When the push pin body 61 moves down to the clamping slot 63, the locking part 512 retracts and engages in the clamping slot 63, thereby fixing and clamping the push pin 60. Simultaneously, two or more rows of clamping slots 63 can be arranged side-by-side along the axial direction of the push pin body 61, so that the push pin 60 can be effectively fixed even at different insertion depths.

[0066] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A fastening push pin that is easy to drive in, characterized in that: The easily driven fastening push pin includes a push pin fastener and a push pin inserted into the push pin fastener. The push pin fastener includes a mounting part, a limiting hole formed on the mounting part, and a fixing barrel provided on one side of the mounting part. The fixing barrel includes a fixing barrel body, a locking part provided at one end of the fixing barrel body, and a clearance opening provided on the fixing barrel body. The push pin includes a push pin body, an end cap provided at one end of the push pin body, a plurality of limiting ridges provided on the push pin body, and a clamping part provided at one end of the push pin body. The shape of the push pin body matches the limiting hole. When the push pin body is inserted into the limiting hole, it is coupled with the limiting hole to fix the position of the push pin in the circumferential direction. An interference fit is formed between the locking part and the clamping part.

2. The easy-to-drive fastening push pin as described in claim 1, characterized in that: The limiting hole includes a main hole, a plurality of limiting slots spaced apart on the circumference of the main hole, and at least two protrusions disposed within the limiting slots.

3. The easy-to-drive fastening push pin as described in claim 1, characterized in that: The push-pin fastener includes a mounting portion, a limiting hole formed on the mounting portion, a groove provided on one side of the mounting portion, and a fixing portion provided on the side of the mounting portion opposite to the groove.

4. The easy-to-drive fastening push pin as described in claim 3, characterized in that: The pusher includes a pusher body, an end cap disposed at one end of the pusher body, a snap-fit ​​ridge disposed on the side of the end cap facing the pusher body, and a limiting slot disposed on the side of the pusher body opposite to the end cap.

5. The easy-to-drive fastening push pin as described in claim 3, characterized in that: The fixing part is disposed on the side opposite to the groove of the mounting part along the outer contour of the limiting hole. It includes two fastening bodies fixedly disposed on one side of the mounting part, two clamping parts respectively disposed on the fastening bodies, one on one side of the fastening bodies, and a shrinkable connecting part disposed at one end of the clamping part.

6. The easy-to-drive fastening push pin as described in claim 1, characterized in that: The push-pin fastener includes a fixed barrel and a mounting part fixedly disposed at one end of the fixed barrel.

7. The easy-to-drive fastening push pin as described in claim 6, characterized in that: The fixed bucket includes an adapter, a locking part disposed at one end of the adapter, and a clearance opening disposed on the locking part.

8. The easy-to-drive fastening push pin as described in claim 6, characterized in that: The pusher includes a pusher body, an inlet end provided at one end of the pusher body, and four clamping grooves provided along the circumference of the pusher body.

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