Expansion sleeve
Technical field
The present invention relates to a kind of expansion sleeve.
Background technique
In fixation procedure is installed, how to guarantee can not become flexible for a long time after fixed installation, and under the prerequisite of lower cost, be convenient to install, guarantee work efficiency, be the problem that should solve in the design and production of fixation workpiece is installed.In traditional approach, adopt stopper to strengthen fixing, the serviceability that affects fixed effect and stopper but stopper easily skids off is also undesirable.
Summary of the invention
The object of this invention is to provide a kind of expansion sleeve solution and how to guarantee can not become flexible for a long time after fixed installation, and under the prerequisite of lower cost, be convenient to install, guarantee the problem of work efficiency.
Technical solution of the present invention is:
A kind of expansion sleeve, comprise body, described body is cylindrical body or conical body, described body comprises elasticity claw, pawl groove and clearance groove, described clearance groove is located at the shaft axis of described body, described pawl grooved ring is around described clearance groove setting, and described expansion sleeve is plastic expansion cover or rubber swelling cover.
Further improve and be: the height of described body is 50-60mm, and the degree of depth of described pawl groove is 40-45mm.
Further improve and be: described pawl groove comprises dewclaw groove and lower claw groove, and the notch of described dewclaw groove is located at the upper bottom surface of described body, and the notch of described lower claw groove is located at the bottom surface of described body.
Further improve and be: the bottom land of described pawl groove is spherical.
Further improve and be: filling gel in described pawl groove.
A kind of expansion sleeve of the present invention, in use, first punches in mounting point, then by expansion sleeve embedding hole, makes to be screwed.A kind of expansion sleeve of the present invention is easy for installation, solid and reliable, is not drawn out easily, and can be widely used in various installing engineerings.This kind of expansion sleeve made by plastics or rubber, can guarantee good toughness, expansion sleeve is also difficult under moist environment aging, and overall structure is not loosening, guarantees can use for a long time after installation.Meanwhile, this kind of expansion sleeve can adopt cylindrical or conical expansion sleeve for different installation environments, thereby makes expansion sleeve play fixed effect preferably to installing.This kind of expansion sleeve good springiness, pulling force is good, shock-resistant, does not break, and hardness is strong, practical, quick for installation and without problem of rustiness, can prevent this slip after installing, thereby guarantees work efficiency and installation quality.
The invention has the beneficial effects as follows: a kind of expansion sleeve of the present invention is easy for installation, solid and reliable, be not drawn out easily, good springiness, pulling force is good, shock-resistant, does not break, and hardness is strong, practical, quick for installation and without problem of rustiness, this slip after installing be can prevent, thereby work efficiency and installation quality guaranteed.This kind of expansion sleeve toughness is high, is also difficult for agingly under moist environment, and overall structure is loosening, guarantees can use for a long time after installation.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of the embodiment of the present invention;
Wherein: 1-elasticity claw, 2-dewclaw groove, 3-clearance groove, 4-lower claw groove.
Embodiment
Below in conjunction with accompanying drawing, describe the preferred embodiments of the present invention in detail.
As shown in Figure 1, the present embodiment provides a kind of expansion sleeve, comprise body, described body is cylindrical body, described body comprises elasticity claw 1, pawl groove and clearance groove 3, described clearance groove 3 is located at the shaft axis of described body, described pawl grooved ring arranges around described clearance groove 3, described expansion sleeve is plastic expansion cover, described pawl groove comprises dewclaw groove 2 and lower claw groove 4, the notch of described dewclaw groove 2 is located at the upper bottom surface of described body, and the notch of described lower claw groove 4 is located at the bottom surface of described body, and the bottom land of described pawl groove is spherical.
A kind of expansion sleeve of the present embodiment, in use, first punches in mounting point, then by expansion sleeve embedding hole, makes to be screwed.A kind of expansion sleeve of the present invention is easy for installation, solid and reliable, is not drawn out easily, and can be widely used in various installing engineerings.This kind of expansion sleeve made by plastics or rubber, can guarantee good toughness, expansion sleeve is also difficult under moist environment aging, and overall structure is not loosening, guarantees can use for a long time after installation.This kind of expansion sleeve good springiness, pulling force is good, shock-resistant, does not break, and hardness is strong, practical, quick for installation and without problem of rustiness, can prevent this slip after installing, thereby guarantees work efficiency and installation quality.
The beneficial effect of the present embodiment is: a kind of expansion sleeve of the present embodiment is easy for installation, solid and reliable, be not drawn out easily, good springiness, pulling force is good, shock-resistant, do not break, hardness is strong, practical, quick for installation and without problem of rustiness, this slip after installing be can prevent, thereby work efficiency and installation quality guaranteed.This kind of expansion sleeve toughness is high, is also difficult for agingly under moist environment, and overall structure is loosening, guarantees can use for a long time after installation.