CN211082481U

CN211082481U - Fastener and clamping tool thereof

Info

Publication number: CN211082481U
Application number: CN201922110710.0U
Authority: CN
Inventors: 刘亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-07-24
Anticipated expiration: 2029-11-30

Abstract

The utility model belongs to the technical field of the fastener technique and specifically relates to a fastener and press from both sides dress instrument thereof, including check lock lever and two backing rings, the check lock lever both ends all are equipped with locking portion, and locking portion includes that two can be for the open arc locking plate in check lock lever longitudinal axis to both sides. The utility model discloses it is fixed more stable, compare other fasteners such as bolt, the dropout can not appear or not hard up, and is more reliable.

Description

Fastener and clamping tool thereof

Technical Field

The utility model belongs to the technical field of the fastener technique and specifically relates to a fastener and press from both sides dress instrument thereof.

Background

In mechanical assembly and daily life, two parts or two positions of one part are often required to be connected through a fastener, and the currently common fastener comprises a bolt, namely the bolt penetrates through two through holes to be connected with a nut in a threaded mode. Although it is convenient to dismantle, need not to dismantle some, under long-time use or more abominable outdoor operating mode, the easy dropout that appears, not hard up scheduling problem, the reliability of fastening is not enough.

For example, the through holes of the cable insulation fixing clip of patent No. 2015204841453 are fastened, because the cable insulation fixing clip is located outdoors for a long time, and the fastening of the position does not need to be disassembled, but the fastening is guaranteed to be reliable and convenient to install. Therefore, it is necessary to develop a fastener, a clamping tool and a clamping method thereof.

Disclosure of Invention

In view of the defects of the prior art, the utility model provides a fastening retaining member, it is fixed more stable, compares other fasteners such as bolt, can not appear threading off or not hard up, and is more reliable, simple to operate.

In order to achieve the above object, the technical scheme of the utility model is a fastener, it includes check lock lever and two backing rings, the check lock lever both ends all are equipped with locking portion, and locking portion includes that two can be for the open arc locking plate in check lock lever longitudinal axis to both sides.

It should be noted that the utility model is suitable for a locking of A position and B position on the same part that has the through-hole, the locking of A position and B position on also perhaps different parts, utilize the check lock lever to pass two through-holes of treating the fastening, penetrate the check lock lever both ends respectively with the backing ring for the backing ring is near A position and B position respectively, utilize the locking portion application of force at external force to both ends, open the arc locking plate of the locking portion at both ends for the check lock lever longitudinal axis to both sides respectively, just so accomplished the locking of A position and B position.

Furthermore, a hollow cylinder structure is arranged between the locking parts at the two ends of the locking rod.

Based on above-mentioned technical scheme, the weight of check lock pole is lighter, and it is more convenient to process.

Preferably, the processing method of the locking rod is to cut two rectangular grooves symmetrically by taking the longitudinal axis as a reference at one end of a hollow cylinder, and the two rectangular grooves are cut symmetrically by taking the longitudinal axis as a reference at the other end of the hollow cylinder. It should be noted that the lengths of the rectangular grooves at both ends are not necessarily the same. The length of the uncut part in the middle of the locking rod is determined by the thickness of the two parts to be locked and the thickness of the backing ring.

The inner side of the arc-shaped locking piece is provided with an arc-shaped guide groove.

Furthermore, two arc locking pieces of the locking part at one end of the locking rod are bent outwards, and a backing ring penetrates through the other end of the locking rod.

Based on the technical scheme, the two arc-shaped locking pieces at one end are bent outwards in advance, so that the sleeved backing ring is prevented from sliding off from one side, and the installation is more convenient. For example, under the working condition that climbing installation fastening is needed, the risk of slip of the backing ring can be reduced, and the fastening process is simplified.

Furthermore, the inner surface of the backing ring comprises a cylindrical surface and a conical surface which is reamed upwards from the cylindrical surface, and the outer surface of the backing ring comprises the cylindrical surface and the conical surface which is closed upwards.

Based on above-mentioned technical scheme, inboard by the cylinder face upward reaming's conical surface, more adapt to can be for the locking lever longitudinal axis to the open arc locking plate in both sides, alleviate the wearing and tearing of arc locking plate to the backing ring.

Furthermore, the fastening piece is made of deformable metal.

Preferably, the material of the fastener is 304 stainless steel.

On the other hand, the utility model discloses a clamping tool for clamping by adopting the fastener, which comprises a pair of pliers, a first clamping head and a second clamping head; the first clamping head and the second clamping head are respectively fixed at the jaw position of the pliers; the first clamping head comprises a structure similar to a circular truncated cone, and the outer surface of the side of the first clamping head is an inwards-concave first arc surface from top to bottom; the second clamping head comprises a structure similar to a circular truncated cone, the outer surface of the side of the second clamping head is an inwards-concave second arc surface from top to bottom, a guide piece is fixed on the second circular truncated cone surface, the guide piece is three cylinders which are integrally arranged, the three cylinders are arranged side by side, and the side surfaces of the two adjacent cylinders are connected.

Based on above-mentioned technical scheme, place in first clamping head position in the one side that the check lock lever has been crooked, in-process of application of force gradually, the second clamping head includes the structure of similar round platform, and its outside surface top-down of side plays the guide effect for inside sunken second arc surface, and two arc locking pieces are crooked gradually along first arc surface. The structure is reasonable, and the curved arc-shaped locking piece is more attractive.

Furthermore, an arc surface guide groove is formed in the inner side of each arc-shaped locking piece, and the arc surface guide groove is matched with the outer surface of the cylinder of the guide piece.

Based on above-mentioned technical scheme, the cambered surface guide way with the cylinder surface of guide cooperatees, and is more smooth and easy to operate at the flaring process.

Furthermore, the first clamping head also comprises a first base, the first base is a hollow cylindrical base, and the first base is fixedly arranged at the lower part of the structure similar to a circular truncated cone; and the lower part of the structure of the second clamping head similar to the circular truncated cone is integrally formed into a second cylindrical section.

Finally, the utility model discloses an it is right to adopt above-mentioned clamping tool the utility model provides a fastener presss from both sides method of dress, the concrete method does, with two arc locking plates of check lock lever one end locking portion outside bending, a backing ring embolias the check lock lever by the check lock lever other end, the check lock lever passes two through-holes of treating fastening position, and the one side that the check lock lever has already been crooked is placed at first clamping head position, and another backing ring embolias the check lock lever, and the overhead guide of second clamp aims at the space between two arc locking plates of the other end, to the pliers application of force, the guide inwards removes, and two arc locking plates are crooked to both sides, stop to the pliers application of force, rotate 90 degrees pliers, continue to the pliers application of force, the cylinder of guide both sides is to the arc locking plate downward application of force to accomplishing the fastening of having already crooked.

According to the clamping method, the guide piece on the second clamping head of the clamping tool is special in structure and plays a role in two links in the process, the first link is that the guide piece on the second clamping head is aligned to a gap between two arc-shaped locking pieces at the other end, force is applied to the pliers, the guide piece moves inwards, the two arc-shaped locking pieces bend towards two sides under the action of the second arc surface, the step is a flaring process, when the guide piece compresses the backing ring, the guide piece cannot be pressed downwards continuously, the force application is stopped, then, the angle is adjusted, and cylinders on two sides of the guide piece are used for extrusion, so that the two arc-shaped locking pieces are further bent and deformed along arc-shaped guide grooves on the inner surfaces of the arc-shaped locking pieces.

The utility model has the advantages that: it is fixed more stably, compares other fasteners such as bolt, can not appear tripping or not hard up, and is more reliable.

Drawings

Fig. 1 is a schematic view of the structure of the locking rod of the present invention;

fig. 2 is a top view of the locking lever of the present invention;

fig. 3 is a schematic structural view of a first chuck of the present invention;

fig. 4 is a top view of a first chuck head of the present invention;

fig. 5 is a schematic structural view of a first base of the first clamping head of the present invention;

fig. 6 is a top view of the first base of the first chuck of the present invention;

fig. 7 is a schematic structural view of a second chuck head according to the present invention;

fig. 8 is a top view of a second chuck head according to the present invention;

fig. 9 is a schematic structural view of the arc-shaped locking piece of the present invention;

FIG. 10 is a schematic view of the first and second clamping heads being secured at the jaw;

in the figure: 1. the check lock lever, 1.1, the arc locking plate, 1.2, the hollow cylinder structure, 1.3, rectangular groove A, 1.4, rectangular groove B, 1.5, the cambered surface guide way, 2, the backing ring, 3, wait fastening position A (rubber), 4, first clamping head, 4.1, first arc surface, 4.2, first table surface, 4.3, first base, 4.4, first cylinder section, 5, the second clamping head, 5.1, the second arc surface, 5.2, the second table surface, 5.3, the guide, 5.4, the second cylinder section, 6, wait fastening position B (rubber), 7, pliers.

Detailed Description

The utility model discloses can be applied to cable insulation fixation clamp, two semi-ring portions usually, treat fastening position A (rubber) promptly and treat that the fixing between the fastening position B (rubber) is through bolt-up, but the long-time use of open air can cause not hard up of fastener, uses the utility model discloses a fastener can effectively avoid fastening insecure problem.

The utility model provides a fastener, its includes check lock lever 1 and two

backing rings

2, 1 both ends of check lock lever all are equipped with locking portion, and locking portion includes two arc locking pieces 1.1 that can open to both sides for check lock lever longitudinal axis.

Furthermore, a hollow cylindrical structure 1.2 is arranged between the locking parts at the two ends of the locking rod.

Preferably, the processing method of the locking rod 1 is to symmetrically cut two rectangular grooves a1.3 at one end of a hollow cylinder by taking the longitudinal axis as a quasi-standard, and symmetrically cut two rectangular grooves B1.4 at the other end of the hollow cylinder by taking the longitudinal axis as a quasi-standard. It should be noted that the lengths of the rectangular grooves at both ends are not necessarily the same. The length of the uncut part in the middle of the locking rod 1 is determined by the thickness of the two parts to be locked and the thickness of the backing ring.

The inner side of the arc-shaped locking piece 1.1 is provided with an arc-shaped guide groove 1.5.

Furthermore, two arc locking pieces 1.1 of the locking part at one end of the locking rod 1 are bent outwards, and a backing ring 2 is penetrated by the other end of the locking rod 1.

Furthermore, the inner surface of the backing ring 2 comprises a cylindrical surface and a conical surface which is reamed upwards from the cylindrical surface, and the outer surface of the backing ring comprises the cylindrical surface and the conical surface which is closed upwards.

Furthermore, the fastening piece is made of deformable metal.

Preferably, the material of the fastener is 304 stainless steel.

On the other hand, the utility model discloses a clamping tool for clamping by adopting the fastener, which comprises a pair of pliers, a first clamping head 4 and a second clamping head 5; the first clamping head 4 and the second clamping head 5 are respectively fixed at the jaw position of the pliers 7 (can be fixed by adopting other forms such as welding and the like); the first clamping head 4 comprises a structure similar to a circular truncated cone, the outer surface of the side of the first clamping head is an inwards concave first arc surface 4.1 from top to bottom, and the top of the first clamping head is provided with a first circular truncated cone surface 4.2; the second clamping head 5 comprises a structure similar to a circular truncated cone, the outer surface of the side of the second clamping head is an inwards concave second arc surface 5.1 from top to bottom, the top of the second clamping head is provided with a second circular table surface 5.2, a guide piece 5.3 is fixed on the second circular table surface 5.2, the guide piece 5.3 is a three cylinder which is integrally arranged, the three cylinders are arranged side by side, and the side surfaces of the two adjacent cylinders are connected.

The first clamping head 4 further comprises a first base 4.3, the first base 4.3 is a hollow cylindrical base, and as shown in fig. 5 and 6, the first base 4.3 is fixedly arranged at the lower part of the structure similar to a circular truncated cone; and a second cylindrical section 5.4 is integrally formed at the lower part of the structure of the second clamping head 5 similar to the circular truncated cone. The lower part of the structure similar to the circular truncated cone is provided with a first cylindrical section 4.4 which is integrally formed.

Furthermore, an arc-shaped guide groove is formed in the inner side of the arc-shaped locking piece 1.1, and the arc-shaped guide groove is matched with the outer surface of the cylinder of the guide piece.

Finally, the utility model discloses a method for clamping the fastener in the utility model by adopting the clamping tool, which comprises the steps that two arc-shaped locking sheets 1.1 of the locking part at one end of the locking rod 1 are bent outwards, a backing ring 2 is sleeved into the locking rod 1 from the other end of the locking rod 1, the locking rod 1 passes through the two through holes at the position to be fastened, the bent side of the locking rod is placed at the position of the first clamping head 4, the other backing ring 2 is sleeved in the locking rod 1, a guide piece 5.3 on the second clamping head 5 is aligned to the gap between the two arc-shaped locking sheets 1.1 at the other end, force is applied to the pliers, the guide piece 5.3 moves inwards, the two arc-shaped locking pieces 1.1 bend towards two sides, the force applied to the pliers is stopped, the pliers are rotated by 90 degrees, the force applied to the pliers is continuously applied, the cylinders on the two sides of the guide piece 5.3 apply force downwards to the bent arc-shaped locking piece 1.1, and the outer sides of the cylinders on the two sides of the guide piece 5.3 are in contact with the arc-shaped guide groove and move downwards until fastening is completed.

To the further explanation of the utility model:

firstly, a calculation formula of the length of a part of the locking rod 1 with a groove in the middle is as follows:

L=2×L1+L2+L3-H；

l is the length of the middle part of the locking rod 1 which is a slot;

l1 is the thickness of backing ring 2;

l2 is the location to be fastened A (rubber) thickness;

l3 is the thickness of the location B (rubber) to be fastened;

h is the rubber shrinkage deformation thickness.

Second, the diameter of the front end of the first clamping head 4 is smaller than that of the hollow cylinder, so that when the bent side of the locking rod is placed at the position of the first clamping head 4, the front end of the first clamping head 4 extends into the space between the two bent arc-shaped locking pieces 1.1, as shown in fig. 8.

And thirdly, the diameter of the cylinders at the two sides of the guide piece 5.3 is smaller than the opening gap between the arc-shaped locking pieces, and the pressing backing ring 2 is convenient for the two arc-shaped locking pieces 1.1 to bend towards the two sides and open.

Fourthly, as shown in fig. 3, the first chuck 4 is provided with an outward 60-degree elevation angle for expanding and bending the two arc-shaped locking pieces 1.1 at one end.

1. As shown in fig. 3 and 5, the first arc surface 4.1 has an arc degree R5, and is used for further bending and shaping the two arc-shaped locking pieces 1.1 after being expanded by an elevation angle of 60 degrees.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A fastener, characterized by: including check lock lever and two backing rings, the check lock lever both ends all are equipped with locking portion, and locking portion includes two can be for the open arc locking plate in check lock lever longitudinal axis to both sides.

2. A fastener according to claim 1, wherein: and a hollow cylindrical structure is arranged between the locking parts at the two ends of the locking rod.

3. A fastener according to claim 1, wherein: the locking rod is characterized in that one end of a hollow cylinder is symmetrically cut into two rectangular grooves by taking the longitudinal axis as a reference, and the other end of the hollow cylinder is also symmetrically cut into two rectangular grooves by taking the longitudinal axis as a reference.

4. A fastener according to claim 1, wherein: the inner side of the arc-shaped locking piece is provided with an arc-shaped guide groove.

5. A fastener according to claim 1, wherein: two arc locking plates of the locking part at one end of the locking rod are bent outwards, and a backing ring penetrates through the other end of the locking rod.

6. A fastener according to claim 1, wherein: the inner surface of the backing ring comprises a cylindrical surface and a conical surface which is reamed upwards from the cylindrical surface, and the outer surface of the backing ring comprises the cylindrical surface and the conical surface which is closed upwards.

7. A clamping tool for clamping with the fastener according to claim 1, characterized in that: comprises a pair of pliers, a first clamping head and a second clamping head; the first clamping head and the second clamping head are respectively fixed at the jaw position of the pliers; the first clamping head comprises a structure similar to a circular truncated cone, and the outer surface of the side of the first clamping head is an inwards-concave first arc surface from top to bottom; the second clamping head comprises a structure similar to a circular truncated cone, the outer surface of the side of the second clamping head is an inwards-concave second arc surface from top to bottom, a guide piece is fixed to the top of the second clamping head, the guide piece is three cylinders which are integrally arranged, the three cylinders are arranged side by side, and the side surfaces of the two adjacent cylinders are connected.

8. The clamping tool of claim 7, wherein: the first clamping head further comprises a first base, the first base is a hollow cylindrical base, and the first base is fixedly arranged at the lower part of the structure similar to a circular truncated cone; and the lower part of the structure of the second clamping head similar to the circular truncated cone is integrally formed into a second cylindrical section.

9. The clamping tool of claim 7, wherein: and the inner side of the arc-shaped locking piece is provided with an arc-shaped guide groove, and the arc-shaped guide groove is matched with the outer surface of the cylinder of the guide piece.