CN210977241U

CN210977241U - Screw joint type safety pull bead buckle

Info

Publication number: CN210977241U
Application number: CN201921567519.2U
Authority: CN
Inventors: 陈丰; 刘纪森; 李志远
Original assignee: Shandong Yuma Sun-Shading Technology Co ltd
Current assignee: Shandong Yuma Sun-Shading Technology Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-10
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to a spiro union formula safety is drawn pearl and is detained, including first connecting portion and second connecting portion, first connecting portion include that the first pearl that draws holds the chamber, and the second connecting portion include that the second draws the pearl to hold the chamber, and the first pearl that draws holds the chamber and the second draws the pearl to hold the chamber and is used for the dress respectively to draw the pearl that draws at pearl chain both ends, through the threaded connection of looks adaptation between first connecting portion and the second connecting portion. The utility model discloses a spiro union formula safety is drawn pearl and is detained dismouting convenient, convenient to use, and the security is high and can used repeatedly.

Description

Screw joint type safety pull bead buckle

Technical Field

The utility model relates to a spiro union formula safety draws pearl to buckle belongs to the (window) curtain and draws the connecting device technical field of pearl.

Background

Modern curtains can reduce light and shade light to meet the requirements of people on different intensities of light; but also can prevent fire, wind, remove dust, keep warm, eliminate noise, insulate heat, protect radiation, prevent ultraviolet rays and the like, and improve the climate and environment of the room.

At present, most of curtains adopt a bead-pulling chain type driving structure, namely, a bead-pulling type pull rope drives a bead chain wheel and a rotating shaft to rotate, and the curtain wound on the rotating shaft can be unfolded or rolled up and down, so that the curtain can be folded and unfolded. For the sake of beauty, the bead pulling chain is generally produced into an integrally formed bead pulling chain ring by adopting modern equipment, and the bead pulling chain ring is formed by arranging a plurality of beads on a pulling rope at intervals and connecting the pulling rope end to end.

The integrally formed zipper bead ring has a plurality of defects in production and specific use. In production, the two ends of the pull rope are fixedly connected into a whole by additional processes and equipment, so that the process flow and the difficulty are increased. In the concrete use, after a zipper bead chain circle production is accomplished, its length is difficult readjustment, if cut the stay cord from the centre short and remove one section, then need get into the technology procedure once more and just can be with stay cord end to end connection, perhaps simply tie together both ends, obviously can cause the inconvenience of use and influence pleasing to the eye.

Besides, the integrally formed zipper bead ring has great potential safety hazard when in use. If a child carelessly winds around a certain part of the body, the child cannot release the child, the danger is high, and particularly when the child is tied to the neck of the child, the life safety of the child is greatly damaged. This problem is often seen in news reports over the years.

The applicant of the present application is an enterprise for developing curtain cloth and curtain installation technology, and researches for many years find that the key for solving the problems lies in the end-to-end connection problem of the zipper bead. Based on the thought, the applicant of the present application develops various bead pulling buckles for connecting the pulling beads, including an integrated safe bead pulling buckle and a split safe bead pulling buckle, wherein the split safe bead pulling buckle includes an outer sleeve clamp type and a screw joint type. This case is mainly directed at components of a whole that can function independently spiro union formula structure.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a spiro union formula safety draws pearl to detain, should draw the pearl to detain the dismouting convenient, convenient to use, the security is high and can used repeatedly.

In order to solve the technical problem, the utility model provides a spiro union formula safety draws pearl to buckle, including first connecting portion and second connecting portion, first connecting portion include that the first pearl that draws holds the chamber, and the second connecting portion include that the second draws the pearl to hold the chamber, and the first pearl that draws holds the chamber and the second draws the pearl to hold the chamber and is used for holding respectively to draw the pearl that draws at pearl chain both ends, threaded connection through looks adaptation between first connecting portion 1 and the second connecting portion.

Preferably, the inner diameters of the cavity inlets of the first pull bead accommodating cavity and the second pull bead accommodating cavity are slightly smaller than the diameter of the pull bead.

Furthermore, the first ball-pulling accommodating cavity is formed by a first ball-pulling accommodating cavity wall with an annular cross section, and at least two first gaps are formed in the first ball-pulling accommodating cavity wall.

Furthermore, the opposite end of the first gap on the wall of the first pull bead containing cavity is connected with a connecting end part, and the inner wall of the connecting end part is provided with threads.

Furthermore, the second ball-pulling accommodating cavity is formed by a second ball-pulling accommodating cavity wall with a circular cross section, and at least two second gaps are formed in the second ball-pulling accommodating cavity wall.

Further, the second pull bead containing cavity wall and the opposite end of the second gap are connected with a threaded seat, and threads are arranged on the outer wall of the threaded seat.

Further, the threads on the inner wall of the connecting end are matched with the threads on the outer wall of the threaded seat.

Furthermore, the inner wall of the connecting end part is provided with an internal thread, and the outer wall of the threaded seat is provided with an external thread.

Furthermore, the safe bead pulling buckle is made of PC polycarbonate.

Furthermore, the first gaps are symmetrically arranged in two, and the second gaps are symmetrically arranged in two.

The utility model has the advantages that: the pull bead buckle body is of a cylindrical structure with openings at two ends, the cylinder walls at the two ends have certain elasticity by virtue of the containing cavity gaps formed at the two ends, meanwhile, the gaps also leave spaces for deformation of the cylinder walls, and by virtue of the elastic clamping structure, pull beads at the head end and the tail end of the pull bead chain can be respectively clamped into the two ends of the pull bead containing cavity and can bear the pulling force during normal use; to the concrete structure of drawing the pearl to detain the body, adopt the structure of two parts spiro union formulas, it is all very convenient to assemble and dismantle, more convenient used repeatedly.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

FIG. 1 is a schematic view of the structure of the safety bead-pulling buckle of the present invention;

FIG. 2 is an exploded view of the safety bead ring of the present invention;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 1;

FIG. 7 is a reference view of the state of the bead pulling buckle and the bead pulling buckle connected together;

fig. 8 is a reference diagram of the state of the safety bead pulling buckle and bead pulling disconnection of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1A screw-connection type safety pull bead buckle

Referring to fig. 1 to 8, the utility model provides a spiro union formula safety draws pearl to detain, hold chamber 1 including drawing the pearl, draw the pearl to hold chamber 1 and include that the first pearl that draws holds chamber 11 and the second draws the pearl to hold chamber 21. The first pull bead accommodating cavity 11 and the second pull bead accommodating cavity 21 are respectively used for accommodating pull beads 3 at two ends of the pull bead chain 4.

The first ball-pulling accommodating cavity 11 is formed by a first ball-pulling accommodating cavity wall 12 with an annular cross section, at least two first gaps 13 are arranged on the first ball-pulling accommodating cavity wall 12, and the two first gaps 13 are preferably symmetrically arranged.

The opposite end of the first pull bead containing cavity wall 12, which is positioned at the first gap 13, is connected with a connecting end part 14, and the inner wall of the connecting end part 14 is provided with threads.

The wall 12 of the first pull bead accommodating cavity and the connecting end 14 are integrally formed to form a first connecting part 1.

The second ball-pulling accommodating cavity 21 is formed by a second ball-pulling accommodating cavity wall 22 with a circular cross section, at least two second gaps 23 are arranged on the second ball-pulling accommodating cavity wall 22, and the two second gaps 23 are preferably symmetrically arranged.

And a threaded seat 24 is connected to the wall 22 of the second pull ball containing cavity and the opposite end of the second gap 23, and threads are arranged on the outer wall of the threaded seat 24.

The second pull bead accommodating cavity wall 22 and the threaded seat 24 are of an integrally formed structure and form the second connecting part 2.

The first connecting part 1 is connected with the second connecting part 2 through matched threads. Specifically, the thread on the inner wall of the connection end portion 14 is matched with the thread on the outer wall of the thread seat 24, preferably, the inner wall of the connection end portion 14 is provided with an internal thread 15, and the outer wall of the thread seat 24 is provided with an external thread 25.

The first slit 13 and the second slit 23 constitute the accommodation chamber slit 2. The setting that holds chamber gap 2 can be more smooth and easy will draw the pearl to put into and draw the pearl to hold the chamber 1 in. The inner diameter of the cavity inlets 5 at the two ends of the pull bead containing cavity 1 is slightly smaller than the diameter of the pull bead, and the diameter of the inner cavity of the pull bead containing cavity 1 is larger than the diameter of the pull bead.

When the pull bead chain is used, the pull beads 3 at two ends of the pull bead chain 4 are pushed into the first pull bead accommodating cavity 11 and the second pull bead accommodating cavity 21 respectively, and the push can be smoother under the action of the first gap 13 and the second gap 23; the threaded seat 24 is then screwed into the connecting end 14, so that the broken chain of pull beads 4 forms a closed annular chain of pull beads 4. The aesthetic property of the zipper bead 4 is greatly improved; when children play and the unexpected winding health appears simultaneously, under the effect of first gap 13 and second gap 23, hold chamber both ends and produce elastic deformation, draw pearl 3 to hold chamber 11 and/or the second from first drawing the pearl and hold chamber 21 and drop, closed annular draws the disconnection of pearl chain 4, has ensured children's personal safety.

The utility model discloses a draw pearl chain 4 is established ties through a flexible line by a plurality of circular shape draw pearl 3 and forms.

The safe bead pulling buckle is made of polycarbonate.

The utility model provides a spiro union formula safety draws pearl to detain, and the dismouting is convenient, convenient to use, and the security is high and improved the aesthetic property that draws the pearl chain.

To sum up, the present invention is not limited to the above-mentioned specific embodiments. The technical personnel in this field can do a plurality of changes or modifications without departing from the technical proposal of the utility model, and the changes or modifications all fall into the protection scope of the utility model.

Claims

1. The utility model provides a spiro union formula safety draws pearl to detain, characterized by includes first connecting portion (1) and second connecting portion (2), first connecting portion (1) draw the pearl including first drawing and hold chamber (11), and second connecting portion (2) draw the pearl including the second and hold chamber (21), and first draw the pearl to hold chamber (11) and second draw the pearl to hold chamber (21) and be used for holding respectively and pull pearl (3) that draw at pearl chain (4) both ends, through the threaded connection of looks adaptation between first connecting portion (1) and second connecting portion (2).

2. The screw-threaded safety pull bead fastener as claimed in claim 1, wherein the inner diameters of the cavity inlets (5) of the first pull bead accommodation cavity (11) and the second pull bead accommodation cavity (21) are slightly smaller than the diameter of the pull bead.

3. The screw-threaded safety pull bead fastener as claimed in claim 1, wherein the first pull bead accommodation chamber (11) is formed by a first pull bead accommodation chamber wall (12) having a ring-shaped cross section, and at least two first slits (13) are formed in the first pull bead accommodation chamber wall (12).

4. A screw-on safety pull-bead fastener as claimed in claim 3, wherein a connecting end portion (14) is connected to the wall (12) of said first pull-bead holding chamber at the opposite end of said first slit (13), and a screw thread is provided on the inner wall of said connecting end portion (14).

5. The screw-threaded safety pull bead fastener as claimed in claim 4, wherein the second pull bead accommodation chamber (21) is formed by a second pull bead accommodation chamber wall (22) having a circular cross section, and at least two second slits (23) are formed in the second pull bead accommodation chamber wall (22).

6. The screw-on safety pull bead fastener as claimed in claim 5, wherein a screw seat (24) is connected to the wall (22) of the second pull bead accommodating cavity at the opposite end of the second slit (23), and the outer wall of the screw seat (24) is provided with screw threads.

7. A screw-on safety pull-bead fastener as claimed in claim 6, characterized in that the screw thread on the inner wall of said connecting end portion (14) is adapted to the screw thread on the outer wall of the screw-threaded seat (24).

8. A screw-on safety pull-bead fastener as claimed in claim 7, characterized in that the inner wall of said connecting end portion (14) is provided with an internal thread (15) and the outer wall of said threaded seat (24) is provided with an external thread (25).

9. The threaded safety bead fastener as claimed in claim 1, wherein the safety bead fastener is made of polycarbonate.

10. The screw-threaded safety pull bead fastener as claimed in claim 5, wherein the first slits (13) are symmetrically arranged in two, and the second slits (23) are symmetrically arranged in two.