TWM464548U - Anti-shedding bolt set - Google Patents

Description

Anti-shedding bolt set

The invention relates to a combination of fixing members, in particular to a bolt set which is resistant to falling off.

The existing bolt sleeve set, as shown in FIG. 6, is provided with a sleeve 40 which is a vertical circular tube body and has an abutting edge 41 protruding toward the periphery of the bottom edge, and a bolt 42 is further provided. The bolt 42 has a rod portion 421 and a head portion 422 coupled to the bottom end of the rod portion 421. The bolt 42 is separated from the sleeve 40.

When the conventional bolt sleeve set is used, as shown in FIG. 6, the sleeve 40 is first fixed in the fixing hole 51 of the object base 50 from the bottom up, and then the rod portion 421 of the bolt 42 is The bottom portion passes through the inside of the sleeve 40, and the rod portion 421 is screwed to the screw hole 53 of the object cover 52. At this time, the head portion 422 of the bolt 42 abuts against the bottom of the abutting edge 41, and the object base 50 is The object cover 52 is screw-locked.

The foregoing conventional bolt sleeve set can achieve the effect of combining the object base 50 and the object cover 52. However, since the sleeve 40 and the bolt 42 are in a separated form, when the bolt 42 is loosened by the screw hole 53 of the object cover 52, When the bolt 42 is dropped, the bolt 42 is likely to be lost. Further, when the plurality of sleeves 40 are disposed on the object base 50, it is necessary to assemble the plurality of bolts 42 through the sleeve 40 one by one, and the leaky assembly is also likely to occur. Happening.

In order to solve the shortcomings and limitations of the existing anti-shedding bolt set, the main purpose of the present invention is to propose a bolt set that prevents falling off, so as to limit the bolt to the structure inside the sleeve, so as to avoid the bolt falling off effect.

In order to achieve the above object, the present invention provides a bolt-proof group, comprising: a sleeve, a body, the body is a vertical circular tube body, and an abutting edge is protruded outwardly at a bottom edge of the body. And a retaining flange is protruded inwardly at the bottom of the inner peripheral surface of the body; and a retaining bolt is provided with a straight rod, and the straight rod is vertically inserted in the sleeve, and the straight surface of the straight rod a top side is provided with a thread, and a latching flange is protruded toward the periphery of the straight surface of the straight rod, and the latching flange abuts against the top side of the retaining flange, the straight rod The sleeve projects downwardly from the bottom end, and a head is coupled to the bottom end of the straight rod, the head having a width greater than the inner diameter of the body.

Further, the present invention has a top edge protruding inwardly from the top edge of the body, and a through hole is formed between the inner circumferences of the top edge, and the top end of the straight rod passes through the through hole upward.

Furthermore, the present invention forms a chamfered portion on the bottom surface of the retaining flange, and the chamfered portion is an inclined surface having an annular shape and an inner high and an outer low.

Preferably, the head of the present invention is a disc body, and a star hole is provided in the center of the bottom surface of the head.

The utility model is used for fixing the sleeve into the fixing hole of the base of the object, so that the sleeve is disposed on the base of the object together with the internal anti-off bolt, and then the cover of the object is closed on the base of the object to make the screw hole of the object cover. lie in Directly above the anti-off bolt, the tool is used to rotate the anti-off bolt, so that the thread of the anti-off bolt is screwed to the screw hole of the object cover body, and finally the head of the anti-off bolt abuts against the bottom of the abutment edge of the sleeve. Attach the object cover to the object base.

The utility model of the novel is that, due to the novel anti-snail The bolt is limited by the anti-drop flange in the sleeve, so when the retaining bolt is loosened from the screw hole of the object cover, the retaining bolt only falls to the latching flange and abuts against the retaining flange. The position will not fall out of the sleeve, and the loss of the anti-off bolt can be avoided. In addition, when the object base is combined with a plurality of the present invention, since it is not necessary to take another bolt through the sleeve for bonding, as long as it is sequential The anti-off bolts provided in the screw lock sleeve can be used, so that the leakage locking condition can be avoided, and the locking and binding work of the anti-off bolts can be more sure.

"This New Type"

10‧‧‧ sleeve

11‧‧‧Ontology

12‧‧‧Affinity

13‧‧‧Top edge

131‧‧‧Perforation

14‧‧‧Protection flange

141‧‧‧Chamfering

20‧‧‧Protection bolts

21‧‧‧ Straight rod

211‧‧‧ thread

212‧‧‧ card flange

22‧‧‧ head

221‧‧‧ star hole

30‧‧‧ Object base

31‧‧‧Fixed holes

32‧‧‧ Object cover

33‧‧‧ screw holes

Prior Technology

40‧‧‧ sleeve

41‧‧‧Affinity

42‧‧‧ bolt

421‧‧‧ pole

422‧‧‧ head

50‧‧‧ Object base

51‧‧‧Fixed holes

52‧‧‧ Object cover

53‧‧‧ screw holes

1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of the components of the preferred embodiment of the present invention.

Figure 3 is a combined cross-sectional view of a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of the preferred embodiment of the present invention mounted on an article.

Figure 5 is a cross-sectional view of the preferred embodiment of the present invention mounted on an article for securing.

Fig. 6 is a schematic view showing the construction of an existing bolt sleeve assembled on an object.

In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the contents of the specification, the following further describes the preferred embodiment as shown in the following figure: , as shown in the preferred embodiment of FIG. 1 to FIG. 3, comprising:

a sleeve 10 is provided with a body 11 which is vertical The circular tube body has an abutting edge 12 protruding outwardly from the bottom edge of the body 11. A top edge 13 is protruded inwardly from the top edge of the body 11, and a through hole 131 is formed between the inner circumferences of the top edge 13. Further, a retaining flange 14 is protruded inwardly from the bottom of the inner peripheral surface of the body 11, and a chamfered portion 141 is formed on the bottom surface of the retaining flange 14. The chamfered portion 141 is annular and has an inner height and a low outer portion. Inclined surface.

a retaining bolt 20, provided with a straight rod 21, suspended by a straight rod 21 Straightening in the sleeve 10, the top end of the straight rod 21 is pierced upward through the through hole 131, a thread 211 is arranged on the top side of the circumferential surface of the straight rod 21, and a convex portion is protruded in the middle of the circumferential surface of the straight rod 21 The flange 212 is clamped, and the latching flange 212 abuts against the top side of the retaining flange 14. The bottom end of the straight rod 21 projects downwardly from the sleeve 10, and the bottom end of the straight rod 21 is coupled to the bottom end. The head 22 is a disk body and has a width larger than the inner diameter of the body 11, and a star-shaped hole 221 is formed in the center of the bottom surface of the head 22.

In the manufacture of the new type, the tool is used to press the retaining bolt 20 so that The latching flange 212 of the retaining bolt 20 pushes the chamfered portion 141 and passes through the retaining flange 14 of the sleeve 10, thereby mounting the retaining bolt 20 in the sleeve 10. In addition to the foregoing preferred embodiment, the head portion 22 is a disk body and a star-shaped hole 221 is provided in the center of the bottom surface of the head portion 22. The head portion 22 can also be a polygonal column. Alternatively, the star hole 221 can be changed to a polygonal hole such as a hexagonal hole, and the tool can be rotated to achieve the effect of driving the rotation of the straight rod 21.

When the present invention is used, as shown in FIG. 3 and FIG. 4, it is a sleeve. The cylinder 10 is fixed in the fixing hole 31 of the bottom of the article embedded in the object base 30, so that the sleeve 10 together with the internal retaining bolt 20 is disposed on the object base 30, at this time The retaining flange 14 on the inner side of the sleeve 10 limits the position of the latching flange 212 of the retaining bolt 20, so that the retaining bolt 20 does not fall out from the inside of the sleeve 10.

Next, as shown in FIG. 4 and FIG. 5, the object cover 32 is covered. On the object base 30, and the screw hole 33 of the object cover 32 is located directly above the retaining bolt 20, the tool is inserted into the star hole 221 and the retaining bolt 20 is rotated, so that the thread 211 of the retaining bolt 20 is turned upward. The screw hole 33 of the object cover 32 is locked, and the head 22 of the retaining bolt 20 abuts against the bottom of the abutting edge 12 of the sleeve 10, whereby the object cover 32 is fixedly coupled with the object base 30.

Since the retaining bolt 20 is received by the retaining flange 14 in the sleeve 10 Therefore, when the object cover 32 needs to be opened and the retaining bolt 20 is loosened from the screw hole 33 of the object cover 32, the retaining bolt 20 only falls to the latching flange 212 against the anti-dropping convexity. The position on the rim 14 does not fall out of the sleeve 10, so that the loss of the detachment preventing bolt 20 can be avoided. In addition, when the object base 30 is combined with a plurality of the present invention, since it is not necessary to take another bolt through The sleeve 10 is combined, and the retaining bolts 20 provided in the sleeve 10 are sequentially used for the screw-locking, so that the leakage locking condition can be prevented.

10‧‧‧ sleeve

20‧‧‧Protection bolts

Claims (4)

An anti-dropping bolt set comprises: a sleeve provided with a body, the body is a vertical circular tube body, and an abutting edge is protruded outwardly at a bottom edge of the body, and is also located at an inner circumference of the body a retaining flange is protruded inwardly from the bottom of the surface; and a retaining bolt is provided with a straight rod, the straight rod is vertically inserted into the sleeve, and a thread is arranged on the top side of the circumferential surface of the straight rod, a latching flange is protruded in the middle of the circumference of the straight rod, and the latching flange abuts against the top side of the retaining flange, and the bottom end of the straight rod protrudes downward a barrel, at the bottom end of the straight rod, a head having a width greater than an inner diameter of the body. The anti-shedding bolt set according to claim 1, wherein a top edge is protruded inwardly at a top edge of the body, and a through hole is formed between inner edges of the top edge, the top end of the straight rod is upward Wear the perforation. The anti-dropping bolt set according to claim 1 or 2, wherein a chamfered portion is formed on a bottom surface of the retaining flange, and the chamfered portion is an inclined surface having an annular shape and an inner high and an outer low. The anti-shedding bolt set according to claim 3, wherein the head is a disc body, and a star hole is provided in a center of the bottom surface of the head.