阅读说明：本技术 一种快速插接连接杆 (Quick grafting connecting rod ) 是由 狄昌军 杨雷 夏剑秋 孙志广 于 2021-09-26 设计创作，主要内容包括：本发明公开了一种快速插接连接杆,连接头和连接座分别固定在两根杆件上,连接头插接于连接座内,在连接头的外圆周壁上设有锁紧凹槽,在连接座的外壁上设有若干钢珠和定位套,定位套将钢珠抵触于锁紧凹槽内,使得连接头与连接座相连；移动定位套使定位套脱离钢珠,连接头可从连接座内抽出。本发明结构简单,实用性强,连接与拆卸快捷,使用方便,使用效果好。(The invention discloses a quick plug-in connecting rod, wherein a connector and a connecting seat are respectively fixed on two rod pieces, the connector is plugged in the connecting seat, a locking groove is arranged on the outer circumferential wall of the connector, a plurality of steel balls and a positioning sleeve are arranged on the outer wall of the connecting seat, and the steel balls are abutted in the locking groove by the positioning sleeve, so that the connector is connected with the connecting seat; the positioning sleeve is moved to separate from the steel ball, and the connector can be drawn out from the connecting seat. The invention has the advantages of simple structure, strong practicability, quick connection and disassembly, convenient use and good use effect.)

1. The utility model provides a quick grafting connecting rod which characterized in that: the connecting device comprises rod pieces (1), a connector (3) and a connecting seat (4), wherein the connector (3) and the connecting seat (4) are respectively fixed on the two rod pieces (1), the connector (3) is inserted into the connecting seat (4), a locking groove (31) is formed in the outer circumferential wall of the connector (3), a plurality of steel balls (41) and a positioning sleeve (42) are arranged on the outer wall of the connecting seat (4), and the steel balls (41) are abutted into the locking groove (31) by the positioning sleeve (42) so that the connector (3) is connected with the connecting seat (4); the positioning sleeve (42) is moved to separate the positioning sleeve (42) from the steel ball (41), and the connector (3) can be drawn out from the connecting seat (4).

2. The quick-connect connector rod of claim 1, further comprising: a plurality of through holes (40) are arranged on the circumferential wall of the connecting seat (4), a steel ball (41) is placed in each through hole, and the bottom opening of each through hole (40) is retracted inwards, so that the caliber of the bottom opening is smaller than the diameter of the steel ball (41).

3. The quick-connect connector rod of claim 1, further comprising: the steel ball bearing is characterized in that a convex rib (421) is arranged on the inner wall surface of the positioning sleeve (42), and the steel ball (41) is radially positioned on the connecting seat (4) by the inner wall surface of the convex rib (421).

4. The quick-connect connector rod of claim 3, wherein: the outer end surface of the convex rib (421) is of an inclined surface structure, and the inner end surface is vertical to the inner wall surface of the positioning sleeve (42).

5. The quick-connect connector rod of claim 4, wherein: the outer wall of the connecting seat (4) is sleeved with a spring (43), and the inner end face of the convex rib (421) abuts against the spring (43).

6. The quick-connect connector rod of claim 5, wherein: the outer wall of the connecting seat (4) is provided with a limiting table (44), and the positioning sleeve (42) slides towards the limiting table (44) so that the convex rib (421) is separated from the steel ball (41), and the convex rib (421) pushes the spring (43) against the limiting table (44) and compresses the spring.

7. The quick-connect connector rod of claim 1, further comprising: a limiting sleeve (45) is fixed on the outer wall of the connecting seat (4), and the limiting sleeve (45) is located in the positioning sleeve (42) and is arranged on the outer side of the steel ball (41).

8. The quick-connect connector rod of claim 1, further comprising: the tail end of the connector (3) is a conical head.

9. The quick-connect connector rod of claim 1, further comprising: the groove surface of the locking groove (31) is a circular arc surface.

10. The quick-connect connector rod of claim 1, further comprising: the connector (3) and the connecting seat (4) are fixed on the corresponding rod piece (1) through a rivet (2).

The technical field is as follows:

the invention relates to a quick splicing connecting rod.

Background art:

more rod pieces are needed to be connected in the supporting process of the tent frame for camping. The existing rod piece connecting structure is complex and cannot be used quickly and conveniently. Therefore, it is necessary to design a rod connection structure that has a simple structure and can be connected and disconnected quickly and conveniently.

The invention content is as follows:

the invention provides a quick plug-in connecting rod for solving the problems in the prior art.

The technical scheme adopted by the invention is as follows:

a quick plug-in connecting rod comprises rod pieces, a connecting head and a connecting seat, wherein the connecting head and the connecting seat are respectively fixed on the two rod pieces, the connecting head is plugged in the connecting seat, a locking groove is formed in the outer circumferential wall of the connecting head, a plurality of steel balls and a positioning sleeve are arranged on the outer wall of the connecting seat, and the steel balls are abutted in the locking groove by the positioning sleeve, so that the connecting head is connected with the connecting seat; the positioning sleeve is moved to separate from the steel ball, and the connector can be drawn out from the connecting seat.

Furthermore, a plurality of through holes are formed in the circumferential wall of the connecting seat, one steel ball is placed in each through hole, and the bottom opening of each through hole is retracted inwards, so that the caliber of the bottom opening is smaller than the diameter of each steel ball.

Furthermore, the inner wall surface of the positioning sleeve is provided with a convex rib, and the steel ball is radially positioned on the connecting seat by the inner wall surface of the convex rib.

Furthermore, the outer end face of the convex rib is of an inclined plane structure, and the inner end face of the convex rib is perpendicular to the inner wall face of the positioning sleeve.

Furthermore, the outer wall of the connecting seat is sleeved with a spring, and the inner end face of the convex rib abuts against the spring.

Furthermore, be equipped with spacing platform on the outer wall of connecting seat, towards the direction slip position sleeve of spacing platform for protruding muscle breaks away from the steel ball, and protruding muscle is contradicted the spring at spacing bench and is made the spring compressed.

Furthermore, a limiting sleeve is fixed on the outer wall of the connecting seat, is positioned in the positioning sleeve and is arranged outside the steel ball.

Furthermore, the tail end of the connecting head is a conical head.

Further, the groove surface of the locking groove is a circular arc surface.

Furthermore, the connecting head and the connecting seat are fixed on the corresponding rod piece through rivets.

When the connector is inserted into the connecting seat, the convex rib is positioned at the position of the steel ball, the steel ball is limited at the locking groove of the connector, and the connector and the connecting seat cannot fall off. The convex rib can be separated from the steel ball position by moving the positioning sleeve, when the connector is pulled, the locking groove lifts the steel ball, and the connector and the connecting seat can be separated. The beneficial effects produced by the method are as follows: the invention has the advantages of simple structure, strong practicability, quick connection and disassembly, convenient use and good use effect.

Description of the drawings:

FIG. 1 is a block diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a structural view of the connecting socket of the present invention.

Fig. 4 is a structural view of the connecting head of the present invention.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, the invention relates to a quick-plugging connecting rod, which comprises a rod 1, a connector 3 and a connecting seat 4. The connector 3 and the connecting seat 4 are fixed on the two rod pieces 1 through rivets 2, the connector 3 is inserted into the connecting seat 4, a locking groove 31 is arranged on the outer circumferential wall of the connector 3, a plurality of steel balls 41 and a positioning sleeve 42 are arranged on the outer wall of the connecting seat 4, the steel balls 41 are arranged along the circumferential direction of the connecting seat 4, and the positioning sleeve 42 is sleeved on the connecting seat 4 and can move along the axial direction of the connecting seat 4.

The positioning sleeve 42 pushes the steel ball 41 into the locking groove 31, so that the connector 3 is connected with the connecting seat 4, and at this time, the connector 3 cannot be pulled out from the connecting seat 4.

The positioning sleeve 42 is axially moved to separate the positioning sleeve 42 from the steel ball 41, and at this time, the connector 3 is pulled outwards, so that the connector 3 can be pulled out from the connecting seat 4.

In order to facilitate the installation of the steel balls 41 on the connecting seat 4, a plurality of through holes 40 are arranged on the circumferential wall of the connecting seat 4, one steel ball 41 is placed in each through hole, the steel ball 41 extends into the inner cavity of the connecting seat 4 through the through hole, and the bottom opening of the through hole 40 is retracted inwards, so that the caliber of the bottom opening is smaller than the diameter of the steel ball 41.

The inner wall surface of the positioning sleeve 42 is provided with a convex rib 421, and the inner wall surface of the convex rib 421 positions the steel ball 41 in the through hole. The outer end surface of the rib 421 is a slope structure, and the inner end surface is perpendicular to the inner wall surface of the positioning sleeve 42.

The outer wall of the connecting seat 4 is sleeved with a spring 43, and the inner end surface of the convex rib 421 is abutted against the spring 43. The outer wall of the connecting seat 4 is provided with a limiting table 44, and the positioning sleeve 42 slides towards the limiting table 44, so that the convex rib 421 is separated from the steel ball 41, and the convex rib 421 pushes the spring 43 against the limiting table 44 and compresses the spring.

When the positioning sleeve 42 is loosened, the steel ball can be smoothly pressed into the through hole again because the outer end surface of the convex rib 421 is of a slope structure.

In order to prevent the steel balls from sliding out of the through holes after the positioning sleeve 42 is slid toward the limiting table 44, a limiting sleeve 45 is provided on the outer wall of the connecting seat 4, and the limiting sleeve 45 is fixed on the connecting seat 4 through a spring clip 46. The limiting sleeve 45 is positioned in the positioning sleeve 42 and is arranged outside the steel ball 41.

When the positioning sleeve 42 is used, the position of the positioning sleeve 42 is moved, the outer end face of the positioning sleeve 42 is flush with the inner end face of the limiting sleeve 45, the convex rib 421 is just completely separated from the steel ball 41, and if the steel ball needs to be taken down, the position of the positioning sleeve 42 is continuously moved, and the steel ball is completely exposed.

In order to better insert the connector 3 into the connecting seat 4, the end of the connector 3 is a tapered head structure. The groove surface of the locking groove 31 on the connector 3 is an arc surface, and the arc surface enables the steel ball to better enter or separate from the groove.

When the connector 3 is inserted into the connecting seat 4, the rib 421 is located at the position of the steel ball, the steel ball is limited in the locking groove 31 of the connector 3, and the connector 3 and the connecting seat 4 cannot fall off. The positioning sleeve 42 is moved to separate the rib 421 from the steel ball, when the connector is pulled, the locking groove 31 lifts the steel ball, and the connector and the connecting seat can be separated.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.