阅读说明：本技术 一种蚊帐杆 (Mosquito net rod ) 是由 王诗冲 于 2019-10-30 设计创作，主要内容包括：本发明涉及生活用品领域,公开了一种蚊帐杆,包括了连接机构、支撑杆、直角三通、盖板、固定扣、限位槽、管槽、横杆、竖杆、限位板、伸缩机构、端板、合页轴、压脚、防脱装置。直角三通设置有两个方管端口,一个圆管端口,方管端口的上表面分别开设有限位槽与管槽,方管端口的上表面设置有盖板,支撑杆包括了横杆、竖杆,横杆和竖杆由多段空心管连接组成,横杆端部与直角三通的方管端口连接,限位板设置于横杆最外侧空心管的顶端,限位板与限位槽相匹配,横杆最外侧的空心管直径与管槽相配；空心管与空心管的连接处均设置有伸缩机构和防脱装置。本发明提供了一种拆装操作简单方便,适用于不同蚊帐大小,连接牢固,便于收纳的蚊帐杆。(The invention relates to the field of articles for daily use and discloses a mosquito net rod which comprises a connecting mechanism, a supporting rod, a right-angle tee joint, a cover plate, a fixing buckle, a limiting groove, a pipe groove, a cross rod, a vertical rod, a limiting plate, a telescopic mechanism, an end plate, a hinge shaft, a presser foot and an anti-falling device. The right-angle tee joint is provided with two square pipe ports and a circular pipe port, the upper surface of each square pipe port is provided with a limiting groove and a pipe groove respectively, the upper surface of each square pipe port is provided with a cover plate, each supporting rod comprises a cross rod and a vertical rod, the cross rods and the vertical rods are formed by connecting multiple sections of hollow pipes, the end parts of the cross rods are connected with the square pipe ports of the right-angle tee joint, limiting plates are arranged at the top ends of the hollow pipes at the outermost sides of the cross rods, the limiting plates are matched with the limiting; the joints of the hollow pipes are provided with telescopic mechanisms and anti-falling devices. The invention provides a mosquito net rod which is simple and convenient to disassemble and assemble, applicable to different mosquito net sizes, firm in connection and convenient to store.)

1. A mosquito net rod, which is characterized in that: the mosquito net rod consists of a support rod (1) and a connecting mechanism (2);

the connection mechanism (2) includes: the device comprises a right-angle tee joint (3), a cover plate (4), a fixing buckle (5), a limiting groove (6) and a pipe groove (7);

the support rod (1) comprises: the anti-dropping device comprises a cross rod (8), a vertical rod (9), a limiting plate (10), a telescopic mechanism (11), an end plate (12), a hinge shaft (13), a pressure foot (14) and an anti-dropping device (15);

the right-angle tee joint (3) is provided with two square pipe ports (301) and a circular pipe port (302), the two square pipe ports (301) are arranged in the horizontal direction of the right-angle tee joint (3), and the circular pipe port (302) is vertically arranged on the lower side of the joint of the two square pipe ports (301); the upper surface of the square pipe port (301) is respectively provided with a limiting groove (6) and a pipe groove (7), and the limiting groove (6) is communicated with the pipe groove (7); the upper surface of the square pipe port (301) is provided with a cover plate (4), and the cover plate (4) is connected with the upper surface of the square pipe port (301) through a fixing buckle (5); the cross rod (8) is formed by connecting multiple sections of hollow pipes (16), the end part of the cross rod is connected with a square pipe port (301) of the right-angle tee joint (3), the limiting plate (10) is arranged at the top end of the hollow pipe (16) on the outermost side of the cross rod (8), the limiting plate (10) is matched with the limiting groove (6), and the diameter of the hollow pipe (16) on the outermost side of the cross rod (8) is matched with the pipe groove (7); the vertical rod (9) is formed by connecting a plurality of sections of hollow pipes (16), an end plate (12) is arranged at the bottom of the hollow pipe (16) at the tail end, and the end plate (12) is connected with the presser foot (14) through a hinge shaft (13); the joints of the hollow pipes (16) and the hollow pipes (16) are provided with telescopic mechanisms (11) and anti-falling devices (15).

2. A mosquito net pole according to claim 1, wherein: the limiting plate (10) and the limiting groove (6) are square, the size of the limiting plate and the size of the limiting groove are the same, and four corners of the limiting plate (10) are arc-shaped.

3. A mosquito net pole according to claim 1, wherein: the limiting groove (6) and the limiting plate (10) are arc-shaped and are the same in size, and the opening of the limiting groove (6) formed in the upper surface of the square pipe port (301) is smaller than the diameter of the limiting plate (10).

4. A mosquito net pole according to claim 1, wherein: the side surface of the limiting plate (10) is uniformly provided with salient points (17).

5. A mosquito net pole according to claim 4, wherein: the salient points (17) and the limiting plate (10) are integrally formed.

6. A mosquito net pole according to claim 4, wherein: the salient points (17) are made of rubber and are arranged on the side faces of the limiting plates (10) through glue.

7. A mosquito net pole according to claim 1, wherein: the cover plate (4) is fan-shaped or equilateral L-shaped and can completely cover the upper surfaces of the two square pipe ports (301) of the right-angle tee joint (3).

8. A mosquito net pole according to claim 1, wherein: horizontal pole (8) and montant (9) are two-way or one-way telescopic, constitute by multistage hollow tube (16), first hollow tube (161) diameter is greater than second hollow tube (162), and second hollow tube (162) have been cup jointed at the one end or both ends of first hollow tube (161), and second hollow tube (162) can freely stretch out and draw back in first hollow tube (161), every section junction between hollow tube (16) all is provided with telescopic machanism (11) and anticreep device (15).

9. A mosquito net pole according to claim 8, wherein: telescopic machanism (11) is the expansion joint group, all fastens through expansion joint group after flexible regulation between first hollow tube (161) and second hollow tube (162), expansion joint group is including connector (111) and expansion cover (112), connector (111) comprises linkage segment (111a), slope section (111b) and screw thread section (111c), linkage segment (111a) is connected with the inner wall of second hollow tube (162), the other end of linkage segment (111a) is connected with the big end lateral wall of slope section (111b), the tip lateral wall of slope section (111b) with screw thread section (111c) are connected, the big end external diameter of slope section (111b) is greater than the external diameter of second hollow tube (162) that is connected with linkage segment (111a), the cover has expansion cover (112) on screw thread section (111c), expansion cover (112) include two half arc covers (112a) and two horizontal strips (112b), the half-arc sleeves (112a) are connected through two transverse strips (112b), the left end and the right end of each transverse strip (112b) are respectively connected with the side walls of the two half-arc sleeves (112a), the two half-arc sleeves (112a) are spliced into a circle after the two transverse strips (112b) are bent, and the inner wall of the expansion sleeve (112) is provided with a spiral groove (112c) matched with the thread section (111 c); anticreep device (15) are connected (152) by anticreep seat (151) and anticreep and are constituteed, set up in the port department that first hollow tube (161) and second hollow tube (162) are connected, the internal diameter that the anticreep is connected (152) all is less than the main aspects external diameter of slope section (111b) in connector (111) that is connected with second hollow tube (162), and the external diameter that the anticreep is connected (152) all is less than the internal diameter of first hollow tube (161), every the external diameter of anticreep seat (151) all more than or equal to the external diameter of first hollow tube (161).

10. A mosquito net pole according to claim 8, wherein: the telescopic mechanism (11) is a threaded joint group, the first hollow pipe (161) and the second hollow pipe (162) are fastened through the threaded joint group after telescopic adjustment, the threaded joint group comprises a first thread (113) and a second thread (114), the first thread (113) is arranged at the end part where the first hollow pipe (161) and the second hollow pipe (162) are connected, and the first thread is depressed and pressed on the pipe wall of the first hollow pipe (161); a second thread (114) is pressed on the pipe wall of the end part of the second hollow pipe (162) connected with the first hollow pipe (161), and the first thread (113) is matched with the second thread (114); the anti-falling device (15) is an anti-falling ring (153) and is arranged at the port of the connecting end of the first hollow pipe (161) and the second hollow pipe (162), and the inner diameter of the anti-falling ring (153) is smaller than the outer diameter of a second thread (114) of the second hollow pipe (162) which is abutted against the anti-falling ring; the anti-drop ring (153) is made of plastic.

11. A mosquito net pole according to claim 8, wherein: the length difference between each section of the hollow pipe (16) is 0.5-5 cm.

Technical Field

The invention relates to the field of articles for daily use, in particular to a mosquito net rod.

Background

The mosquito net is a common mosquito-proof product in summer, generally needs to be supported by a mosquito net support when in use, the mosquito net support is generally formed by splicing and combining a plurality of hollow pipes, generally speaking, in autumn and winter seasons without mosquitoes, the mosquito net needs to be collected for use in the coming year, but longer mosquito net rods can not be directly collected, so that various mosquito net rods convenient to fold are developed by people, the mosquito net rods are connected in series by elastic ropes at present, or the small-pipe-diameter hollow pipes are wrapped by arc-shaped large-pipe-diameter hollow pipes and fixed in a rotating mode, but the connection modes of the mosquito net rods have the problems of aging of the elastic ropes and deformation of scratches on the surfaces of the hollow pipes, so that the service lives of the mosquito net rods are reduced, and connectors adopted during assembly are mostly in a splicing mode, namely the hollow pipes are directly inserted into corresponding three-way ports, such mounting means operation is not convenient, moreover because the reason of atress direction in the use of mosquito net pole, is located the horizontal direction's horizontal pole, often because the circumstances that the slippage appears in the grafting that middle section atress caused both ends junction takes place, influences the normal use of mosquito net pole.

Disclosure of Invention

The invention aims to provide a mosquito net rod, wherein a limiting groove and a pipe groove are formed in the upper surface of a tee joint, the tee joint and a mosquito net cross rod are clamped and fixed, the cross rod is prevented from slipping due to external force, meanwhile, the telescopic mechanism of a support rod prolongs the service life of the support rod on the basis of adjusting the length of the support rod, the support rod is not easy to deform, and the mosquito net rod is very convenient to mount and store.

In order to achieve the purpose, the invention provides the following technical scheme: a mosquito net rod is composed of a connecting mechanism and a supporting rod; the connecting mechanism includes: the device comprises a right-angle tee joint, a cover plate, a fixing buckle, a limiting groove and a pipe groove; the bracing piece includes: the device comprises a cross rod, a vertical rod, a limiting plate, a telescopic mechanism, an end plate, a hinge shaft, a presser foot and an anti-falling device; the right-angle tee joint is provided with two square pipe ports and a circular pipe port, the two square pipe ports are arranged in the horizontal direction of the right-angle tee joint, and the circular pipe port is vertically arranged on the lower side of the joint of the two square pipe ports; the upper surface of the port of the square tube is respectively provided with a limiting groove and a tube slot, and the limiting groove is communicated with the tube slot; the upper surface of the port of the square tube is provided with a cover plate, and the cover plate is connected with the upper surface of the port of the square tube through a fixing buckle; the cross bar is formed by connecting multiple sections of hollow pipes, the end part of the cross bar is connected with the end of a square pipe of the right-angle tee, the limiting plate is arranged at the top end of the outermost hollow pipe of the cross bar, the limiting plate is matched with the limiting groove, and the diameter of the outermost hollow pipe of the cross bar is matched with the pipe groove; the vertical rod is formed by connecting a plurality of sections of hollow pipes, the bottom of the hollow pipe at the tail end is provided with an end plate, and the end plate is connected with the presser foot through a hinge shaft; the joints of the hollow pipes are provided with telescopic mechanisms and anti-falling devices.

Furthermore, the limiting plate and the limiting groove are square, the size of the limiting plate and the size of the limiting groove are the same, and four corners of the limiting plate are arc-shaped.

Furthermore, the limiting groove and the limiting plate are arc-shaped and have the same size, and the opening of the limiting groove arranged on the upper surface of the port of the square pipe is smaller than the diameter of the limiting plate.

Furthermore, the side of limiting plate evenly is provided with the bump.

Further, the salient points and the limiting plate are integrally formed.

Further, the salient points are made of rubber and are mounted on the side face of the limiting plate through glue.

Furthermore, the cover plate is fan-shaped or equilateral L-shaped and can completely cover the upper surfaces of the ports of the two square pipes of the right-angle tee.

Further, horizontal pole and montant are two-way or one-way telescopic, constitute by the multistage hollow tube, first hollow tube diameter is greater than the second hollow tube, and the second hollow tube has been cup jointed at the one end or the both ends of first hollow tube, and the second hollow tube can freely stretch out and draw back in first hollow tube, every section junction between the hollow tube all is provided with telescopic machanism and anticreep device.

Furthermore, the telescopic mechanism is an expansion joint group, the first hollow pipe and the second hollow pipe are fastened through the expansion joint group after telescopic adjustment, the expansion joint group comprises a connector and an expansion sleeve, the connector comprises a connecting section, an inclined section and a thread section, the connecting section is connected with the inner wall of the second hollow pipe, the other end of the connecting section is connected with the side wall of the large end of the inclined section, the side wall of the small end of the inclined section is connected with the thread section, the outer diameter of the large end of the inclined section is larger than that of the second hollow pipe connected with the connecting section, the thread section is sleeved with the expansion sleeve, the expansion sleeve comprises two half-arc sleeves and two transverse strips, the half-arc sleeves are connected through the two transverse strips, the left end and the right end of each transverse strip are respectively connected with the side walls of the two half-arc sleeves, and the two half-arc sleeves are spliced into a circle after the two transverse strips are bent, the inner wall of the expansion sleeve is provided with a spiral groove matched with the thread section; the anticreep device is connected by anticreep seat and anticreep and forms, sets up in the port department that first hollow tube and second hollow tube are connected, the internal diameter that the anticreep is connected all is less than the main aspects external diameter of slope section in the connector that is connected with the second hollow tube, and the external diameter that the anticreep is connected all is less than the internal diameter of first hollow tube, every the external diameter of anticreep seat equal more than or equal to the external diameter of first hollow tube.

Furthermore, the telescopic mechanism is a threaded joint group, the first hollow pipe and the second hollow pipe are fastened through the threaded joint group after telescopic adjustment, the threaded joint group comprises a first thread and a second thread, the first thread is arranged at the end part where the first hollow pipe and the second hollow pipe are connected, and the first thread is depressed and pressed on the pipe wall of the first hollow pipe; a second thread is pressed on the pipe wall of the end part of the second hollow pipe connected with the first hollow pipe, and the first thread is matched with the second thread; the anti-falling device is an anti-falling ring and is arranged at the port of the connecting end of the first hollow pipe and the second hollow pipe, and the inner diameter of the anti-falling ring is smaller than the outer diameter of a second thread of the second hollow pipe, which is abutted against the second hollow pipe; the anti-drop ring is made of plastic.

Further, the length difference between the hollow pipes is 0.5-5 cm.

Compared with the prior art, the invention has the beneficial effects that:

1. the right-angle tee who sets up spacing groove and tube seat on the upper surface is adopted to coupling mechanism in the mosquito net pole in this application, like this when the equipment mosquito net pole, only needs to push away the limiting plate on the top of horizontal pole and inserts the spacing groove, and the corresponding tube seat position has also been pushed to the hollow tube of corresponding horizontal pole simultaneously, has realized being connected of horizontal pole and right-angle tee. In the in-service use, the horizontal pole probably receives generally all be perpendicular decurrent power, after its atress, even produce the decurrent external force of dragging in the junction of horizontal pole and right angle tee this moment, limiting plate and spacing groove cooperation have ensured the horizontal pole absolutely can not follow the slippage in the right angle tee, and the mode of direct grafting among the prior art is more firm than, and the mounting means is also more convenient moreover.

2. The cover plate is arranged on the upper surface of the port of the two square pipes of the right-angle tee joint, so that the appearance is attractive, dust can be prevented from falling into the limiting groove and the pipe groove in use, and unnecessary cleaning work is avoided. The limiting plate can be effectively prevented from being pushed out of the limiting groove when the cross rod is accidentally subjected to upward vertical external force.

3. The end of the vertical rod of the supporting rod is connected with the presser foot through the end plate and the hinge shaft, so that the situation that the traditional presser foot needs to be taken down from the bottom of the supporting rod when being stored is avoided; when in use, the foot can be turned over and opened, and the operation is simple and convenient.

4. The side surface of the limiting plate is evenly provided with the salient points which are made of rubber materials, so that the friction force between the limiting plate and the limiting groove can be effectively increased, and the firm degree of connection between the limiting plate and the limiting groove is further ensured.

5. The horizontal pole and the montant of bracing piece all adopt two-way or one-way flexible mode, can use in the actual production in a flexible way, and horizontal pole and montant comprise the multistage hollow tube, can set up to multiple modes such as both ends, three-section, four sections, five sections according to actual need, select in a flexible way to be applicable to in the not unidimensional mosquito net.

6. The cross rod and the vertical rod of the mosquito net rod are composed of hollow pipes, the joints of the hollow pipes are provided with expansion joint groups and anti-falling devices, the expansion joint groups are convenient to install while the length of the cross rod and the vertical rod is adjusted, and the expansion joint groups are only the length of one hollow pipe after being stored; fix through expansion joint group, guaranteed that the hollow tube surface is difficult for by the fish tail, also be difficult for causing the hollow tube to warp for a long time using, effectively increased the life of mosquito net pole, the anticreep device when preventing to adjust the length slippage between the hollow tube, still effectual parcel has lived the hollow tube border, prevents the fish tail that causes the user.

7. The horizontal pole and the montant of mosquito net pole adopt the hollow tube to constitute, all be provided with threaded joint group and anticreep device in the junction of hollow tube and hollow tube, and adopt threaded joint group link, threaded joint can be through the unified suppression shaping of machine, it is convenient to produce, and a structure is simple, easy dismounting, holistic cost is low, the condition that the pine takes off is difficult to appear after fastening through the screw thread rotation, the emergence of the slippage condition in small-bore hollow tube follow heavy-calibre hollow tube appears when the effectual hollow tube length that prevents of anticreep ring of suppression, anticreep ring is in the time that prevents the slippage, the hollow tube border has been wrapped up in addition, prevent the fish tail that the tubular metal resonator border caused to the user.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the support rod and the connecting mechanism of the mosquito net rod.

Fig. 2 is a schematic view of a right-angle tee.

Fig. 3 is a schematic side view of the connection mechanism.

Fig. 4 is a schematic view of a connection cross-sectional structure of a square limiting plate and a limiting groove.

Fig. 5 is a schematic view of a connection cross-sectional structure of the circular limiting plate and the limiting groove.

Fig. 6 is a schematic view of the structure of the presser foot during the process of turning up.

Fig. 7 is a schematic cross-sectional view of the telescoping mechanism and the anti-slip device in embodiment 1.

Fig. 8 is a schematic perspective view of the expansion sleeve.

Fig. 9 is a schematic cross-sectional structure diagram of the expansion sleeve.

Fig. 10 is a schematic cross-sectional view of the telescoping mechanism and the anti-slip device in example 2.

Reference numerals: the device comprises a support rod 1, a connecting mechanism 2, a right-angle tee joint 3, a cover plate 4, a fixing buckle 5, a limiting groove 6, a pipe groove 7, a cross rod 8, a vertical rod 9, a limiting plate 10, a telescopic mechanism 11, an end plate 12, a hinge shaft 13, a presser foot 14, an anti-falling device 15, a hollow pipe 16 and a salient point 17;

a square tube port 301 and a circular tube port 302;

a first hollow tube 161, a second hollow tube 162;

the anti-drop device comprises a connector 111, a connecting section 111a, an inclined section 111b, a threaded section 111c, an expansion sleeve 112, a semi-arc sleeve 112a, a transverse bar 112b, a spiral groove 112c, an anti-drop seat 151 and an anti-drop connection 152;

first screw thread 113, second screw thread 114, anti-slip ring 153.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-9, in embodiment 1 of the present invention, the mosquito net rod is composed of a connection mechanism 2 and a support rod 1, the connection mechanism 2 includes a right-angle tee 3, a cover plate 4, a fixing buckle 5, a limit groove 6, and a pipe groove 7, and the support rod includes: the anti-dropping device comprises a cross rod 8, a vertical rod 9, a limiting plate 10, a telescopic mechanism 11, an end plate 12, a hinge shaft 13, a presser foot 14 and an anti-dropping device 15. The right-angle tee 3 is provided with two square pipe ports 301 and a circular pipe port 302, the two square pipe ports 301 are arranged in the horizontal direction of the right-angle tee 3, and the circular pipe port 302 is vertically arranged at the lower side of the joint of the two square pipe ports 301; the upper surface of the square pipe port 301 is provided with a limiting groove 6 and a pipe groove 7 respectively, and the limiting groove 6 is communicated with the pipe groove 7; the upper surface of the square pipe port 301 is provided with a cover plate 4, the cover plate 4 is connected with the upper surface of the square pipe port 301 through a fixing buckle 5, and the cover plate 4 is fan-shaped or equilateral L-shaped and can completely cover the upper surfaces of the two square pipe ports 301 of the right-angle tee 3; the limiting plate 10 and the limiting groove 6 can be square, the size of the limiting plate 10 and the size of the limiting groove 6 are the same, and the four corners of the limiting plate 10 are arc-shaped, so that the card can be conveniently pushed into the limiting groove 6; the limiting groove 6 and the limiting plate 10 can also be arc-shaped, the size of the limiting groove 6 and the limiting plate 10 is the same, the opening size of the limiting groove 6 arranged on the upper surface of the port 301 of the square tube is smaller than the diameter of the limiting plate 10, and the limiting plate 10 is clamped and pushed into the limiting groove 6 by the elasticity of plastics to realize fixation; the side surface of the limiting plate 10 is uniformly provided with salient points 17, and the salient points 17 are made of plastics or rubber, can be integrally formed with the limiting plate 10 in production, and can also be arranged on the side surface of the limiting plate 10 through glue. The cross bar 8 is formed by connecting multiple sections of hollow pipes 16, the end part of the cross bar is connected with a square pipe port 301 of the right-angle tee 3, the limiting plate 10 is arranged at the top end of the hollow pipe 16 at the outermost side of the cross bar 8, the limiting plate 10 is matched with the limiting groove 6, and the diameter of the hollow pipe 16 at the outermost side of the cross bar 8 is matched with the pipe groove 7; the vertical rod 9 is formed by connecting a plurality of sections of hollow pipes 16, the bottom of the hollow pipe 16 at the tail end is provided with an end plate 12, and the end plate 12 is connected with a presser foot 14 through a hinge shaft 13; the hollow pipe 16 and the hollow pipe 16 are connected with each other and are provided with a telescopic mechanism 11 and an anti-falling device 15. The transverse rod 8 and the vertical rod 9 are two-way or one-way telescopic and are composed of a plurality of sections of hollow pipes 16, and the length difference between each section of hollow pipe 16 is 0.5-5 cm. The diameter of the first hollow pipe 161 is larger than that of the second hollow pipe 162, one end or two ends of the first hollow pipe 161 are sleeved with the second hollow pipe 162, the second hollow pipe 162 can freely extend and retract in the first hollow pipe 161, and a telescopic mechanism 11 and an anti-falling device 15 are arranged at the joint between the hollow pipes 16 of each section. The expansion mechanism 11 is an expansion joint group, the first hollow tube 161 and the second hollow tube 162 are fastened through the expansion joint group after expansion adjustment, the expansion joint group comprises a connector 111 and an expansion sleeve 112, the connector 111 comprises a connecting section 111a, an inclined section 111b and a threaded section 111c, the connecting section 111a is connected with the inner wall of the second hollow tube 162, the connecting section 111a is connected with the side wall of the large end of the inclined section 111b, the side wall of the small end of the inclined section 111b is connected with the threaded section 111c, the outer diameter of the large end of the inclined section 111b is larger than the outer diameter of the second hollow tube 162 connected with the connecting section 111a, the expansion sleeve 112 is sleeved on the threaded section 111c, the expansion sleeve 112 comprises two half-arc sleeves 112a and two transverse strips 112b, the half-arc sleeves 112a are connected with each other through the two transverse strips 112b, and the left and right ends of each transverse strip 112b are respectively connected with the side walls of the two half-arc sleeves 112a, after the two transverse strips 112b are bent, the two half-arc sleeves 112a are spliced into a circular shape, and a spiral groove 112c matched with the thread section 111c is formed in the inner wall of the expansion sleeve 112; anticreep device 15 is connected 152 by anticreep seat 151 and anticreep and is constituteed, sets up in the port department that first hollow tube 161 and second hollow tube 162 are connected, 152's internal diameter is all less than the main aspects external diameter of slope section 111b in the connector 111 that is connected with second hollow tube 162 to the anticreep, and 152's external diameter is all less than to the anticreep the internal diameter of first hollow tube 161, every the external diameter of anticreep seat 151 equal more than or equal to the external diameter of first hollow tube 161.

In the installation process of the mosquito net rod, firstly, the lengths of the cross rod 8 and the vertical rod 9 are adjusted through the telescopic mechanism 11, the rotary connector 111 is driven by rotating the second hollow pipe 162, the threaded section 111c in the connector 111 is rotatably connected with the spiral groove 112c in the expansion sleeve 112 through the rotary connector 111, the inclined section 111b of the connector 111 props open the two egg half-arc sleeves 112a of the expansion sleeve 112, the outer circumferences of the two half-arc sleeves 112a are fully contacted with the inner wall of the first hollow pipe 161 which is contacted, so that the expansion fastening effect is achieved, after the length adjustment of the cross rod 8 and the vertical rod 9 is completed, the limiting plates 10 at the two ends of the cross rod 8 are clamped and pushed into the limiting groove 6 on the upper surface of the square pipe port 301 of the right-angle tee 3, the cross rod 8 which is connected is pushed into the pipe groove 7 at the same time, then the cover plate 4 is covered, the cover plate 4 is fixed through the fixing buckle 5, finally, the presser foot 14 is turned downwards through the hinge shaft 13 and unfolded.

Referring to fig. 1-6 and 10, in embodiment 2 of the present invention, the mosquito net rod is composed of a connection mechanism 2 and a support rod 1, the connection mechanism 2 includes a right-angle tee 3, a cover plate 4, a fixing buckle 5, a limit groove 6 and a pipe groove 7, and the support rod includes: the anti-dropping device comprises a cross rod 8, a vertical rod 9, a limiting plate 10, a telescopic mechanism 11, an end plate 12, a hinge shaft 13, a presser foot 14 and an anti-dropping device 15. The right-angle tee 3 is provided with two square pipe ports 301 and a circular pipe port 302, the two square pipe ports 301 are arranged in the horizontal direction of the right-angle tee 3, and the circular pipe port 302 is vertically arranged at the lower side of the joint of the two square pipe ports 301; the upper surface of the square pipe port 301 is provided with a limiting groove 6 and a pipe groove 7 respectively, and the limiting groove 6 is communicated with the pipe groove 7; the upper surface of the square pipe port 301 is provided with a cover plate 4, the cover plate 4 is connected with the upper surface of the square pipe port 301 through a fixing buckle 5, and the cover plate 4 is fan-shaped or equilateral L-shaped and can completely cover the upper surfaces of the two square pipe ports 301 of the right-angle tee 3; the limiting plate 10 and the limiting groove 6 can be square, the size of the limiting plate 10 and the size of the limiting groove 6 are the same, and the four corners of the limiting plate 10 are arc-shaped, so that the card can be conveniently pushed into the limiting groove 6; the limiting groove 6 and the limiting plate 10 can also be arc-shaped, the size of the limiting groove 6 and the limiting plate 10 is the same, the opening size of the limiting groove 6 arranged on the upper surface of the port 301 of the square tube is smaller than the diameter of the limiting plate 10, and the limiting plate 10 is clamped and pushed into the limiting groove 6 by the elasticity of plastics to realize fixation; the side surface of the limiting plate 10 is uniformly provided with salient points 17, and the salient points 17 are made of plastics or rubber, can be integrally formed with the limiting plate 10 in production, and can also be arranged on the side surface of the limiting plate 10 through glue. The cross bar 8 is formed by connecting multiple sections of hollow pipes 16, the end part of the cross bar is connected with a square pipe port 301 of the right-angle tee 3, the limiting plate 10 is arranged at the top end of the hollow pipe 16 at the outermost side of the cross bar 8, the limiting plate 10 is matched with the limiting groove 6, and the diameter of the hollow pipe 16 at the outermost side of the cross bar 8 is matched with the pipe groove 7; the vertical rod 9 is formed by connecting a plurality of sections of hollow pipes 16, the bottom of the hollow pipe 16 at the tail end is provided with an end plate 12, and the end plate 12 is connected with a presser foot 14 through a hinge shaft 13; the joints of the hollow pipes 16 and 16 are provided with a telescopic mechanism 11 and an anti-drop device 15. The transverse rod 8 and the vertical rod 9 are two-way or one-way telescopic and are composed of a plurality of sections of hollow pipes 16, and the length difference between each section of hollow pipe 16 is 0.5-5 cm. The diameter of the first hollow pipe 161 is larger than that of the second hollow pipe 162, one end or two ends of the first hollow pipe 161 are sleeved with the second hollow pipe 162, the second hollow pipe 162 can freely extend and retract in the first hollow pipe 161, and a telescopic mechanism 11 and an anti-falling device 15 are arranged at the joint between the hollow pipes 16 of each section. The telescopic mechanism 11 is a threaded joint group, the first hollow tube 161 and the second hollow tube 162 are fastened through the threaded joint group after telescopic adjustment, the threaded joint group comprises a first thread 113 and a second thread 114, the first thread 113 is arranged at the end part where the first hollow tube 161 and the second hollow tube 162 are connected, and the first thread 113 is depressed and pressed on the tube wall of the first hollow tube 161; a second thread 114 is pressed on the pipe wall of the end part of the second hollow pipe 162 connected with the first hollow pipe 161, and the first thread 113 is matched with the second thread 114; the anti-falling device 15 is an anti-falling ring 153 which is arranged at the port of the connecting end of the first hollow pipe 161 and the second hollow pipe 162, and the inner diameter of the anti-falling ring 153 is smaller than the outer diameter of the second thread 114 of the second hollow pipe 162 which is abutted against the anti-falling ring; the anti-drop ring 153 is made of plastic.

In the installation process of the mosquito net rod, firstly, the length of the cross rod 8 and the length of the vertical rod 9 are adjusted through the telescopic mechanism 11, the first hollow pipe 161 and the second hollow pipe 162 are stretched to enable the first thread 113 and the second thread 114 to be aligned, the first hollow pipe 161 is rotated to enable the first thread 113 and the second thread 114 to be rotatably connected, so that the effect of thread rotation fastening is achieved, after the length adjustment of the cross rod 8 and the length of the vertical rod 9 is completed, the limiting plates 10 at two ends of the cross rod 8 are clamped and pushed into the limiting grooves 6 on the upper surfaces of the square pipe ports 301 of the right-angle tee 3, the cross rod 8 connected with the cross rod is pushed into the pipe grooves 7, then the cover plate 4 is covered, the cover plate 4 is fixed through the fixing buckles 5, then the upper end of the vertical rod 9 is inserted into the circular pipe port 302 of the tee, and finally, the presser.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.