CN218882104U - Synchronous bidirectional linkage pull rod structure - Google Patents

Abstract

The utility model discloses a pull rod structure of synchronous two-way linkage, include: the pull rod is internally provided with a first vertical cavity and a second vertical cavity which are arranged left and right, and the upper end and the lower end of the pull rod are provided with fixed pulleys; one end of the upper chain penetrates into the upper end of one of the first vertical cavity and the second vertical cavity; one end of the lower chain penetrates into the lower end of the other of the first vertical cavity and the second vertical cavity; connect the rope, connect the both ends interconnect of rope, connect the rope around establishing two between the fixed pulley, go up the chain with the lower chain sets up respectively connect the both sides of rope and all with connect the rope and connect, go up the setting of chain and lower chain to make the slip of screen door more stable, smooth and easy, go up chain and lower chain crisscross shrink in the pull rod, be favorable to avoiding going up the problem that chain and lower chain blocked each other and appearing.

Description

Synchronous bidirectional linkage pull rod structure

Technical Field

The utility model relates to a screen door accessory technical field, in particular to pull rod structure of synchronous two-way linkage.

Background

The screen door is a door commonly used by people in a horizontal type and on a balcony, can play a role in ventilation and preventing mosquitoes and the like from entering a room through the screen door, and is popular with people. In order to avoid the guide rail of screen door bottom to cause the hindrance to people's trip, thereby partial screen door adopts the mode that the bottom set up the tank chain to reach the effect that supplementary screen door opened and shut.

However, the screen door with the tank chain arranged on one side has the common problem that the screen door is unstable in reciprocating pulling. And the screen door that the upper and lower both sides all set up the tank chain then has two tank chains about being difficult to realize synchronous linkage and the problem of hindering each other at reciprocal pulling in-process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

The utility model provides a pull rod structure with synchronous bidirectional linkage, which comprises a pull rod, wherein a first vertical cavity and a second vertical cavity which are arranged left and right are arranged in the pull rod, and the upper end and the lower end of the pull rod are provided with fixed pulleys; one end of the upper chain penetrates into the upper end of one of the first vertical cavity and the second vertical cavity; one end of the lower chain penetrates into the lower end of the other of the first vertical cavity and the second vertical cavity; connect the rope, connect the both ends interconnect of rope, connect the rope around establishing between two fixed pulleys, go up the chain and set up respectively in the both sides of connecting the rope and all be connected with being connected the rope with lower chain.

According to the utility model discloses the pull rod structure of synchronous two-way linkage that provides has following beneficial effect at least: the two ends of the connecting rope are connected with each other, namely the connecting rope is arranged in a ring shape in a surrounding mode, the connecting rope is arranged between the two fixed pulleys in a winding mode, the upper chain and the lower chain are arranged on the two sides of the connecting rope respectively and are connected with the connecting rope, when a user pulls the pull rod, the other ends of the upper chain and the lower chain are generally fixed with the door frame, the connecting rope rotates forwards or backwards under the connecting action of the connecting rope, the upper chain and the lower chain are far away from or close to each other, and therefore the upper chain and the lower chain extend out of or retract into the pull rod, compared with a traditional screen door only provided with a tank chain at the bottom, the screen door adopting the pull rod structure of the synchronous bidirectional linkage is provided with the upper chain and the lower chain through the arrangement of the upper chain and the lower chain, sliding of the screen door is more stable and smooth, synchronous bidirectional linkage of the upper chain and the lower chain can be achieved under the connecting action of the connecting rope, and the driving requirements of the upper chain and the lower chain are met; two tank chains of the screen door of two tank chains about the tradition sets up are mutually contradictory, make tank chain telescopic stroke in the pull rod only can reach the half of pull rod length, this synchronous bidirectional communication's pull rod structure is equipped with the first perpendicular chamber of relative independence and the perpendicular chamber of second in the pull rod, and it corresponds with one of them in the perpendicular chamber of first perpendicular chamber and second to go up the chain, and another correspondence in the perpendicular chamber of lower chain and first perpendicular chamber and second, it is crisscross shrink in the inside of pull rod to go up chain and lower chain promptly, be favorable to avoiding the problem that goes up chain and lower chain hindrance each other to appear.

According to the utility model discloses a some embodiments, the utility model discloses still include first screw, the one end that the cochain strip penetrated the pull rod is equipped with first connecting block, is equipped with the screw on the first connecting block, first screw and first connecting block threaded connection, and the connection rope clamp is established between first screw and first connecting block.

During the equipment, the user can arrange one side of connecting the rope in between first screw and the first linkage block, and through screwing first screw, thereby make first screw and first linkage block threaded connection, along with the screw in of first screw, first screw can with be connected the rope butt, thereby make one side clamp of connecting the rope establish between first screw and first linkage block, realize first linkage block promptly and be connected being connected of rope, satisfy the cochain strip needs and the user demand who is connected the rope and is connected.

According to the utility model discloses a some embodiments, the utility model discloses still include the second screw, the one end that the lower chain penetrated the pull rod is equipped with the second connecting block, is equipped with the screw on the second connecting block, second screw and second connecting block threaded connection, and the connection rope clamp is established between second screw and second connecting block.

During the equipment, the user can arrange the opposite side of connecting the rope in between second screw and the second connecting block, and through screwing the second screw, thereby make second screw and second connecting block threaded connection, along with the screw in of second screw, the second screw can with the opposite side butt of being connected the rope, thereby make the opposite side clamp of being connected the rope establish between second screw and second connecting block, realize the second connecting block promptly and be connected the rope, satisfy the lower chain needs and the user demand of being connected the rope and being connected.

According to the utility model discloses a some embodiments, the utility model discloses still include the balancing weight, the balancing weight is connected with the second connecting block.

Be connected with the balancing weight on the second connecting block, when the second connecting block is connected to and is connected the rope on, the setting of balancing weight can be so that to connect the rope and be in the state of flare-outing, is favorable to keeping the zonulae occludens between connection rope and the fixed pulley, under the linkage effect of connecting the rope, can realize going up the chain and the synchronization and the linkage of chain down.

According to the utility model discloses a some embodiments, second connecting block elastic connection has the preforming, and the second screwed fitting can with the preforming butt, connect the rope clamp and establish between preforming and second connecting block.

Second connecting block elastic connection has the preforming, connect the rope around establishing between preforming and second connecting block, during the equipment, the position of preforming on connecting the rope is adjusted to the user's accessible, thereby adjust down the chain and be connected the relative position relation between the rope, then screwing of accessible second screw, make the second screw sticiss the preforming, realize the second connecting block promptly and be connected the fixed of rope, when connecting the rope rotation, can keep the flexible synchronism of chain and lower chain.

According to some embodiments of the present invention, the pull rod comprises a rod body, an upper guide block and a lower guide block; the upper guide block is connected with the upper end of the rod body and is connected with the upper chain to guide the upper chain to penetrate into the first vertical cavity; the lower guide block is connected with the lower end of the rod body and connected with the lower chain to guide the lower chain to penetrate into the second vertical cavity.

Go up the guide block and be connected with the upper end of the body of rod, under the guide effect of last guide block, can make the cochain strip realize the corner, thereby make about the cochain strip that extends can penetrate first perpendicular intracavity, the lower guide block is connected with the lower extreme of the body of rod, under the guide effect of guide block down, can make the lower chain realize the corner, thereby make about the lower chain strip that extends can penetrate the second perpendicular intracavity, thereby satisfy the flexible and staggered arrangement in the inside user demand of pull rod of last chain and lower chain need relative pull rod.

According to the utility model discloses a some embodiments, the body of rod still includes fixture block, mobile jib and fixture block down, and first perpendicular chamber and second are erect the chamber and are all set up in the mobile jib, the upper end and the lower extreme of mobile jib respectively with last fixture block and lower fixture block releasable connection, go up the guide block and be connected with last fixture block, lower guide block is connected with lower fixture block.

The body of rod top-down can divide into fixture block, mobile jib and lower fixture block, and wherein, first perpendicular chamber and the perpendicular chamber of second all set up in the mobile jib, and go up the guide block and be connected with last fixture block, and lower guide block is connected with fixture block down, the upper end and the lower extreme of mobile jib respectively with last fixture block and lower fixture block releasable connection, can satisfy the equipment demand of the body of rod.

According to the utility model discloses a some embodiments, the utility model discloses still include the cutting, the lateral surface of mobile jib is equipped with logical groove, and the lateral surface of going up the fixture block is equipped with the draw-in groove, and the lateral surface of lower fixture block is equipped with down the draw-in groove, and the cutting passes logical groove setting, the upper end and the lower extreme of cutting respectively with last draw-in groove and lower draw-in groove joint.

The cutting can be used to be connected with the one end of screen window, and the cutting passes logical groove back, can be so that the upper end and the last draw-in groove joint of cutting, the lower extreme and the lower draw-in groove joint of cutting to realize cutting being connected with the pull rod, when pull rod reciprocating motion, through the connection of cutting with the screen window, thereby can drive the screen window and remove about, thereby realize that the screen window shelters from or opens the door frame.

According to some embodiments of the utility model, the upper end and the lower extreme of pull rod all are equipped with the gyro wheel.

The upper end and the lower extreme of pull rod all are equipped with the gyro wheel, and when pull rod reciprocating motion, the gyro wheel that is located the pull rod upper end can be connected with the last rail, and the gyro wheel that is located the pull rod lower extreme can with ground butt to the removal about supplementary realization pull rod is favorable to improving the stability and the smooth and easy degree that adopt this synchronous two-way linkage's pull rod structure's screen door to remove.

According to some embodiments of the utility model, be equipped with the magnetic stripe in the pull rod.

Be equipped with the magnetic stripe in the pull rod, the cooperation sets up the magnetic stripe in door frame department, when two magnetic stripes are close to each other, utilizes attracting each other of magnetic stripe to realize the screen fan to the sealing of door frame, and then play ventilative and mosquito-proof worm's effect, satisfy the user demand of screen door.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a synchronous bidirectional linkage pull rod structure provided in an embodiment of the present invention;

FIG. 2 is an exploded view of one of the simultaneous bi-directional linkage drawbar configurations shown in FIG. 2;

fig. 3 is a schematic linkage diagram of a connecting rope of a synchronous bidirectional linkage pull rod structure according to an embodiment of the present invention;

fig. 4 is a schematic linkage diagram of a connecting rope of a synchronous bidirectional linkage pull rod structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cross section of a connecting rod of a synchronous bidirectional linkage pull rod structure according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a first connecting block and a second connecting block of a synchronous bidirectional linkage pull rod structure provided in an embodiment of the present invention;

fig. 7 is a schematic view of a connection structure of a main rod, an inserting bar and a lower fixture block of a synchronous bidirectional linkage pull rod structure provided in an embodiment of the present invention.

In the drawings: 100. a pull rod; 110. a first vertical cavity; 120. a second vertical cavity; 130. a fixed pulley; 141. a main rod; 1411. a through groove; 142. an upper clamping block; 143. a lower clamping block; 1431. a lower clamping groove; 150. an upper guide block; 160. a lower guide block; 210. chain mounting; 211. a first connection block; 220. a lower chain; 221. a second connecting block; 222. tabletting; 230. a counterweight block; 300. connecting ropes; 400. cutting; 500. a roller; 600. a magnetic strip.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of terms means an indefinite amount, and a plurality of terms means two or more, and the terms greater than, less than, exceeding, etc. are understood to include no essential numbers, and the terms greater than, less than, within, etc. are understood to include essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. Additionally, appearing throughout and/or representing three side-by-side scenarios, e.g., A and/or B represents a scenario satisfied by A, a scenario satisfied by B, or a scenario satisfied by both A and B.

In the description of the present invention, if there is a phrase containing a plurality of parallel features, the phrase defined therein is the closest feature, for example: b, C disposed on A, E connected to D, B disposed on A, E connected to D, and C is not limited; however, terms indicating relationships between features such as "spaced apart", "arranged in a ring", etc. do not fall within this category. The phrase with the word "mean" before it is meant to be a definition of all features in the phrase, e.g., B, C, D, both disposed on a, means B, C and D both disposed on a.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Embodiments of the present invention will be described with reference to fig. 1 to 7.

Embodiment one, refer to fig. 1 and fig. 2, the embodiment of the utility model provides a draw bar structure of synchronous two-way linkage, include: a pull rod 100, an upper chain 210, a lower chain 220 and a connecting rope 300.

Referring to fig. 2, the pull rod 100 includes an upper fixture block 142, a main rod 141, and a lower fixture block 143, which are sequentially disposed from top to bottom, an accommodating cavity is disposed in the main rod 141 and penetrates vertically, protruding strips extending vertically are disposed on a front surface and a rear surface of the accommodating cavity, and the accommodating cavity is divided into a first vertical cavity 110 and a second vertical cavity 120, which are disposed horizontally, under the partition effect of the protruding strips.

Referring to fig. 1, the upper end and the lower end of the main rod 141 are detachably connected to the upper latch 142 and the lower latch 143, respectively, so as to meet the assembly requirement of the rod body, and the pull rod 100 further includes an upper guide block 150 and a lower guide block 160. Wherein, the upper guide block 150 is connected with the upper latch 142, and the lower guide block 160 is connected with the lower latch 143.

Referring to fig. 3, 4 and 5, one end of the upper chain 210 penetrates into the upper end of one of the first vertical cavity 110 and the second vertical cavity 120; one end of the lower chain 220 penetrates into the lower end of the other of the first vertical cavity 110 and the second vertical cavity 120; as above, one end of the chain 210 penetrates into the first vertical cavity 110, and one end of the lower chain 220 penetrates into the second vertical cavity 120; also, as above, one end of the chain 210 penetrates into the upper end of the second vertical chamber 120, and one end of the lower chain 220 penetrates into the lower end of the first vertical chamber 110. The right end of the chain 210 is inserted into the first vertical cavity 110, and the right end of the lower chain 220 is inserted into the second vertical cavity 120.

Considering that the upper chain 210 is located above the screen door and the lower chain 220 is located below the screen door, the upper chain 210 may have a thickness less than the thickness of the lower chain 220, thereby reducing the load bearing pressure at the upper end of the screen door, and, in turn, the first vertical cavity 110 may have a width less than the width of the second vertical cavity 120.

Referring to fig. 2, the upper guide block 150 and the lower guide block 160 are both provided with arc surfaces, under the guiding action of the upper guide block 150, when the upper guide block 150 abuts against the upper chain 210, the upper chain 210 can be made to rotate, so that the upper chain 210 extending left and right can penetrate into the first vertical cavity 110, the lower guide block 160 is connected with the lower end of the rod body, under the guiding action of the lower guide block 160, when the lower guide block 160 abuts against the lower chain 220, the lower chain 220 can be made to rotate, so that the lower chain 220 extending left and right can penetrate into the second vertical cavity 120, and therefore the use requirements that the upper chain 210 and the lower chain 220 need to stretch and retract relative to the pull rod 100 and are arranged inside the pull rod 100 in a staggered manner are met.

Two tank chains of the screen door of two upper and lower tank chains are mutually contradictory for tank chain's flexible stroke in pull rod 100 can only reach the half of pull rod 100 length, this synchronous two-way intercommunication's pull rod structure is equipped with the perpendicular chamber 120 of first perpendicular chamber 110 and second of relative independence in pull rod 100, and it corresponds with first perpendicular chamber 110 to go up chain 210, and lower chain 220 is perpendicular chamber 120 with the second and corresponds, it is crisscross shrink in pull rod 100 to go up chain 210 and lower chain 220 promptly, be favorable to avoiding the problem that last chain 210 and lower chain 220 hinder each other to appear.

Referring to fig. 4, the fixed pulleys 130 are disposed inside the upper fixture block 142 and the lower fixture block 143, the upper and lower fixed pulleys 130 are located on the same vertical line, two ends of the connection rope 300 are connected to each other, the connection rope 300 is wound between the two fixed pulleys 130, that is, the connection rope 300 is surrounded into a ring shape, the upper chain 210 and the lower chain 220 are disposed on two sides of the connection rope 300 and connected to the connection rope 300, if the upper chain 210 is disposed on the left side of the connection rope 300 and connected to the left side of the connection rope 300, the lower chain 220 is disposed on the right side of the connection rope 300 and connected to the right side of the connection rope 300.

When a user pulls the pull rod 100, since the left ends of the upper chain 210 and the lower chain 220 are generally fixed to the door frame, the connecting rope 300 rotates forward or backward under the connecting action of the connecting rope 300, and the upper chain 210 and the lower chain 220 are far away from or close to each other, as shown in fig. 4, when the connecting rope 300 rotates clockwise, the upper chain 210 and the lower chain 220 are far away from each other, and when the connecting rope 300 rotates counterclockwise, the upper chain 210 and the lower chain 220 are close to each other, thereby enabling the upper chain 210 and the lower chain 220 to extend out of or retract into the pull rod 100. Compare in the tradition screen door that only is provided with the tank chain in the bottom, the screen door that adopts the pull rod structure of this synchronous two-way linkage passes through the setting of last chain 210 and lower chain 220 to make the slip of screen door more stable, smooth and easy, and under the connection effect of connecting rope 300, can realize the synchronous two-way linkage of last chain 210 and lower chain 220, satisfy the drive demand of last chain 210 and lower chain 220.

Referring to fig. 3 and 6, the synchronous bidirectional linkage pull rod structure further includes a first threaded member and a second threaded member, and both the first threaded member and the second threaded member may be screws, bolts, and the like. Go up the one end that chain 210 penetrated pull rod 100 and be equipped with first connecting block 211, and the one end that chain 210 penetrated pull rod 100 is equipped with second connecting block 221, all be equipped with the screw on first connecting block 211 and the second connecting block 221, the left side clamp of connecting rope 300 is established between first screw and first connecting block 211, first screw and first connecting block 211 threaded connection, the right side clamp of connecting rope 300 is established between second screw and second connecting block 221, second screw and second connecting block 221 threaded connection.

During the equipment, the user can arrange first screw thread spare and first connecting block 211 in the left side of connecting rope 300 between to through the first screw thread spare of screwing, thereby make first screw thread spare and first connecting block 211 threaded connection, along with the screw in of first screw thread spare, first screw thread spare can with be connected rope 300 butt, thereby realize first connecting block 211 and be connected being connected of rope 300, satisfy the user demand that last chain 210 needs to be connected with being connected rope 300. The user can arrange the right side of connecting rope 300 in between second screw and the second connecting block 221, and through screwing the second screw, thereby make second screw and second connecting block 221 threaded connection, along with the screw in of second screw, the second screw can with be connected rope 300 butt, thereby make one side clamp of connecting rope 300 establish between second screw and second connecting block 221, realize second connecting block 221 and be connected of connecting rope 300 promptly, satisfy the user demand that lower chain 220 needs to be connected with connecting rope 300.

Referring to fig. 3, the pressing plate 222 is elastically connected to the second connecting block 221, and in a natural state, a first space is formed between the pressing plate 222 and the second connecting block 221, and the right side of the connecting rope 300 is wound between the pressing plate 222 and the second connecting block 221 and is located within the first space. During the assembly, the user accessible is adjusted the position of preforming 222 on connecting rope 300, thereby adjust the relative position relation between lower chain 220 and the connecting rope 300, then the screwing of accessible second screw, make the second screw sticis preforming 222, realize the fixed of second connecting block 221 and connecting rope 300 promptly, when connecting rope 300 is rotatory, can keep the flexible synchronism of last chain 210 and lower chain 220, if when pull rod 100 pulling certain distance, the length that last chain 210 and lower chain 220 retract or stretch out pull rod 100 equals, thereby guarantee to adopt the upper end and the lower extreme synchronous motion of this synchronous bidirectional linkage's draw bar structure's screen door, be favorable to improving the stability and the smoothness nature that the screen door removed.

A first end of the connection rope 300 may be connected to the first connection block 211, a left side of the connection rope 300 winds around the first screw and is clamped between the first screw and the first connection block 211, the connection rope 300 is disposed around the fixed pulley 130 at the upper end, the connection rope 300 moves down to wind around the pressing sheet 222 and is clamped between the pressing sheet 222 and the second connection block 221, the connection rope 300 is disposed around the fixed pulley 130 at the lower end, and a second end of the connection rope 300 is connected to the first connection block 211, that is, both the first end and the second end of the connection rope 300 are connected to the first connection block 211, so that the connection rope 300 may be surrounded into a ring shape.

Be connected with balancing weight 230 on the second connecting block 221, when second connecting block 221 was connected to and is connected on the rope 300, balancing weight 230's setting can make to connect the rope 300 and be in the state of flare-outing, was favorable to keeping the zonulae occludens between connecting rope 300 and the fixed pulley 130, under the connection effect of connecting rope 300, can realize going up chain 210 and lower chain 220's synchronization and linkage. The weight and size of the weight 230 can be adjusted according to actual requirements, and is not limited herein.

Referring to fig. 7, a through groove 1411 which is vertically communicated is formed in the left side surface of the main rod 141, an upper clamping groove with a downward opening is formed in the left side surface of the upper clamping block 142, a lower clamping groove 1431 with an upward opening is formed in the left side surface of the lower clamping block 143, one end of a screen sash of the screen door can be connected to the insert 400, if one end of the screen sash is sleeved on the insert 400 or bonded to the insert 400, the insert 400 passes through the through groove 1411, so that the upper end of the insert 400 is clamped with the upper clamping groove, the lower end of the insert 400 is clamped with the lower clamping groove 1431, so that the insert 400 is connected with the pull rod 100, and when the pull rod 100 reciprocates, the screen sash is driven to move left and right through the connection of the insert 400 and the screen sash, so that the screen sash shields or opens the door frame.

The upper end and the lower end of the pull rod 100 are both provided with the roller 500, when the pull rod 100 reciprocates, the roller 500 positioned at the upper end of the pull rod 100 can be connected with the upper rail, and the roller 500 positioned at the lower end of the pull rod 100 can be abutted against the ground, so that the left and right movement of the pull rod 100 is realized in an auxiliary manner, and the stability and the smoothness of the movement of the screen door adopting the pull rod structure with the synchronous bidirectional linkage are improved.

Be equipped with magnetic stripe 600 in the pull rod 100, the cooperation sets up the magnetic stripe 600 in door frame department, when two magnetic stripes 600 were close to each other, utilized attracting each other of magnetic stripe 600 to realize the screen fan and to the sealing of door frame, and then play ventilative and mosquito-proof worm's effect, satisfy the user demand of screen door.

The embodiment of the utility model provides a working principle of a synchronous bidirectional linkage pull rod structure as follows; when the user pulls pull rod 100 to the right, because the left end of last chain 210 and the left end of lower chain 220 all with door frame fixed connection, and go up chain 210 and lower chain 220 and be located the left and right sides of connecting rope 300 respectively and all be connected with connecting rope 300, connect rope 300 clockwise rotation, make and go up chain 210 and lower chain 220 and keep away from each other, even make and go up chain 210 and lower chain 220 and wear out pull rod 100 respectively, under the guide effect of last chain 210 and lower chain 220, can make the screen window fan expand, thereby realize the closure to the door frame, thereby play ventilative and prevent that the mosquito from getting into indoor effect. When the user drove pull rod 100 leftwards, because the left end of last chain 210 and the left end of lower chain 220 all with door frame fixed connection, and go up chain 210 and lower chain 220 and be located the left and right sides of connecting rope 300 respectively and all be connected with connecting rope 300, it is anticlockwise rotatory to connect rope 300, make and go up chain 210 and lower chain 220 and be close to each other, even make and go up chain 210 and lower chain 220 and retract pull rod 100 respectively, under the guide effect of last chain 210 and lower chain 220, can make the screen window fan fold, thereby realize making door frame department form the passageway that can supply the human body to pass, thereby satisfy the human body needs and get into indoor or outdoor user demand.

While the preferred embodiments of the present invention have been described in detail, it is to be understood that the invention is not limited to the precise embodiments, and that various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a pull rod structure of synchronous two-way linkage which characterized in that includes:

the pull rod (100) is internally provided with a first vertical cavity (110) and a second vertical cavity (120) which are arranged left and right, and the upper end and the lower end of the pull rod (100) are respectively provided with a fixed pulley (130);

an upper chain (210), one end of the upper chain (210) penetrating into an upper end of one of the first vertical cavity (110) and the second vertical cavity (120);

a lower chain (220), one end of the lower chain (220) penetrating into the lower end of the other of the first vertical cavity (110) and the second vertical cavity (120);

connect rope (300), the both ends interconnect of connecting rope (300), it establishes to connect rope (300) the winding between two fixed pulley (130), go up chain (210) with lower chain (220) set up respectively connect the both sides of rope (300) and all with connect rope (300) and be connected.

2. The pull rod structure with synchronous bidirectional linkage according to claim 1, further comprising a first threaded member, wherein a first connecting block (211) is disposed at one end of the upper chain (210) penetrating into the pull rod (100), a screw hole is disposed on the first connecting block (211), the first threaded member is in threaded connection with the first connecting block (211), and the connecting rope (300) is clamped between the first threaded member and the first connecting block (211).

3. The pull rod structure with the synchronous bidirectional linkage function according to claim 1, further comprising a second threaded member, wherein a second connecting block (221) is arranged at one end of the lower chain (220) penetrating into the pull rod (100), a screw hole is formed in the second connecting block (221), the second threaded member is in threaded connection with the second connecting block (221), and the connecting rope (300) is clamped between the second threaded member and the second connecting block (221).

4. The synchronous bidirectional linkage drawbar structure according to claim 3, further comprising a weight block (230), wherein the weight block (230) is connected to the second connection block (221).

5. The rod structure of claim 3, wherein the second connecting block (221) is elastically connected with a pressing plate (222), the second screw member can abut against the pressing plate (222), and the connecting rope (300) is sandwiched between the pressing plate (222) and the second connecting block (221).

6. The simultaneous bidirectional linked draw bar structure of claim 1, wherein the draw bar (100) comprises a bar body, an upper guide block (150) and a lower guide block (160); the upper guide block (150) is connected with the upper end of the rod body and connected with the upper chain (210) so as to guide the upper chain (210) to penetrate into the first vertical cavity (110); the lower guide block (160) is connected with the lower end of the rod body and connected with the lower chain (220) so as to guide the lower chain (220) to penetrate into the second vertical cavity (120).

7. The pull rod structure of synchronous bidirectional linkage according to claim 6, wherein the rod body further includes an upper fixture block (142), a main rod (141), and a lower fixture block (143), the first vertical cavity (110) and the second vertical cavity (120) are both disposed in the main rod (141), the upper end and the lower end of the main rod (141) are detachably connected to the upper fixture block (142) and the lower fixture block (143), the upper guide block (150) is connected to the upper fixture block (142), and the lower guide block (160) is connected to the lower fixture block (143).

8. The pull rod structure with synchronous bidirectional linkage according to claim 7, further comprising an inserting bar (400), wherein a through groove (1411) is formed in the outer side surface of the main rod (141), an upper clamping groove is formed in the outer side surface of the upper clamping block (142), a lower clamping groove (1431) is formed in the outer side surface of the lower clamping block (143), the inserting bar (400) penetrates through the through groove (1411), and the upper end and the lower end of the inserting bar (400) are clamped with the upper clamping groove and the lower clamping groove (1431) respectively.

9. The simultaneous bidirectional linkage draw bar structure according to claim 1, wherein the upper end and the lower end of the draw bar (100) are provided with rollers (500).

10. The simultaneous bidirectional linkage pull rod structure according to claim 1, characterized in that a magnetic strip (600) is provided in the pull rod (100).

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