Elastic positioning structure for roller shutter rope

Abstract

The utility model relates to the field of roller shutter accessories, in particular to an elastic positioning structure of a roller shutter rope, which is characterized by comprising two springs, two rolling guide bodies and two positioning ropes, the two rolling guide bodies are arranged side by side left and right, and the two springs are respectively and transversely arranged above the two rolling guide bodies; one end of one positioning rope is connected to one end of the spring on the left side; and one end of the other positioning rope is connected to one end of the spring on the right side. The two positioning ropes can realize elastic buffering, so that the roller shutter can lift and slide lightly, the tightness of the positioning ropes is very reasonable, the tensioning forces of the two positioning ropes are consistent, the conditions of deviation and displacement during lifting of the roller shutter can be avoided, and the service life of the roller shutter is prolonged. The device has the advantages of being good in synchronism, convenient to operate, less in jamming and the like.

Description

Technical Field

[0001] This utility model relates to the field of roller blind accessories, and in particular to an elastic positioning structure for roller blind ropes. Background Technology

[0002] Chinese patent application CN200620025114.2 discloses a technical solution entitled "Freely Balanced Roller Blind," which includes the following technical features: a roller, shaft, bearing, spring, blind, steel wire rope, pulley, pull rod, and frame. The steel wire rope is divided into two sections that pass through the pull rod, with both ends of the two sections fixed to their respective frame ends. Because the ends of the steel wire rope are directly fixed, its tension is greatly affected by human factors, easily leading to unreasonable tension. This can result in inconsistent tension between the two steel wire ropes, causing uneven resistance during the lifting and lowering of the pull rod, which can easily lead to jamming. Therefore, it is essential to design an elastic positioning structure for the roller blind rope to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems and shortcomings and provide an elastic positioning structure for roller blind ropes. The two positioning ropes on the elastic positioning structure can achieve elastic buffering, which not only makes the roller blind lifting and sliding more smoothly, but also makes the tension of the positioning ropes very reasonable, so that the tension of the two positioning ropes is consistent, thereby avoiding the roller blind from deviating or shifting during lifting and lowering. It has the advantages of good synchronization, easy operation, and less jamming.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A roller shutter cord elastic positioning structure is characterized by comprising two springs, two rolling guides, and two positioning ropes. The two rolling guides are arranged side by side, and the two springs are arranged laterally above the two rolling guides. One end of one positioning rope is connected to one end of the left spring, and the other end of the positioning rope is lowered, passes under the left rolling guide, then to the right, passes over the top of the right rolling guide, and is then fixed downwards. One end of the other positioning rope is connected to one end of the right spring, and the other end of the positioning rope is lowered, passes under the right rolling guide, then to the left, passes over the top of the left rolling guide, and is then fixed downwards.

[0006] Based on the aforementioned structure, three specific structures for the rolling guide are given: First, the rolling guide consists of two guide wheels, with two positioning ropes wound around each of the two guide wheels. Second, the rolling guide consists of one guide wheel, with both positioning ropes wound around this guide wheel. Third, the rolling guide consists of a guide roller, with both positioning ropes wound around the guide roller.

[0007] Preferably, the elastic positioning structure of the roller blind cord further includes a crossbar, with two rolling guides respectively disposed on the left and right ends of the crossbar.

[0008] Preferably, the surface of the crossbar is provided with a laterally extending C-shaped gripper groove.

[0009] Preferably, the roller blind rope elastic positioning structure further includes a clamping screw, and the other end of the positioning rope is wrapped or fitted onto the clamping screw.

[0010] Preferably, the roller blind rope elastic positioning structure further includes a reinforcing block, and the clamping screw is screwed onto the reinforcing block.

[0011] Preferably, the positioning rope is a steel wire rope.

[0012] The beneficial effects of this utility model are as follows: In the elastic positioning structure of the roller blind rope, the two springs enable both positioning ropes to achieve an elastic buffering effect. This not only makes the roller blind lifting and sliding more smoothly, but also makes the tension of the positioning ropes very reasonable, so that the tension of the two positioning ropes is consistent, thereby avoiding the roller blind from deviating or shifting during lifting and lowering. It has the advantages of good synchronization, easy operation, and less jamming. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the elastic positioning structure of the roller blind rope in this utility model.

[0014] Figure 2 This is one of the structural schematic diagrams of the present invention in use.

[0015] Figure 3 This is the second structural schematic diagram of the present invention in use.

[0016] Figure 4 This is the third structural schematic diagram of the present invention in use.

[0017] Figure 5 This is the fourth structural schematic diagram of the present invention in use. Detailed Implementation

[0018] like Figure 1As shown, the elastic positioning structure for a roller blind cord of this utility model includes two springs 1, two rolling guides 2, and two positioning ropes 3. The two rolling guides 2 are arranged side by side, with the rolling center lines of both rolling guides 2 extending longitudinally (the longitudinal direction is the front-to-back direction). The two springs 1 are arranged laterally above the two rolling guides 2 respectively. One end of one positioning rope 3 is connected to one end of the left spring 1, and the other end of the positioning rope 3 is lowered, passes under the left rolling guide 2, then to the right, passes over the top of the right rolling guide 2, and is then fixed downwards. One end of the other positioning rope 3 is connected to one end of the right spring 1, and the other end of the positioning rope 3 is lowered, passes under the right rolling guide 2, then to the left, passes over the top of the left rolling guide 2, and is then fixed downwards.

[0019] In this roller blind rope elastic positioning structure, the two springs 1 enable the two positioning ropes 3 to achieve an elastic buffering effect. This not only makes the roller blind lifting and sliding more smoothly, but also makes the tension of the positioning ropes 3 very reasonable, so that the tension of the two positioning ropes 3 is consistent, thereby avoiding the roller blind from deviating or shifting during lifting and lowering. It has the advantages of good synchronization, easy operation, and less jamming.

[0020] Based on the aforementioned structure, three specific structures for rolling guides are given, which are as follows:

[0021] The first type, such as Figure 1 As shown, the rolling guide 2 consists of two guide wheels, and two positioning ropes 3 are respectively wound around the two guide wheels. This facilitates stable guidance, thereby helping to improve the reliability of the elastic structure of the roller shutter positioning rope.

[0022] When two guide wheels are used to form a rolling guide, annular grooves are opened on the outer circumferential surfaces of the two guide wheels for the two positioning ropes 3 to be embedded, which helps to improve the stability and reliability of the guide.

[0023] In the second configuration, the rolling guide 2 is a guide wheel, around which both positioning ropes 3 are wound. This reduces manufacturing difficulty and cost, thereby improving the applicability of the elastic structure of the roller shutter positioning ropes.

[0024] When a guide wheel is used to form a rolling guide body 2 for two positioning ropes 3 to be wound, the outer circumferential surface of the guide wheel can be provided with one annular groove for the two positioning ropes 3 to be embedded, or two annular grooves can be provided for the two positioning ropes 3 to be embedded respectively. This can help improve the stability and reliability of the guide.

[0025] The third type involves a guide roller 2, with both positioning ropes 3 wound around it. This not only ensures the stability of the guidance but also controls manufacturing difficulty and cost, thereby improving the reliability and applicability of the roller shutter positioning rope elastic structure.

[0026] When a guide roller is used to form a rolling guide body 2 for two positioning ropes 3 to be wound, the outer circumferential surface of the guide roller can be provided with one annular groove for the two positioning ropes 3 to be embedded, or two annular grooves can be provided for the two positioning ropes 3 to be embedded respectively. This can help improve the stability and reliability of the guide.

[0027] like Figure 2 As shown, the roller blind cord elastic positioning structure also includes a crossbar 4, with two rolling guides 2 respectively disposed on the left and right ends of the crossbar 4. The crossbar 4 is disposed on the lower end of the roller blind, which not only strengthens the lower end of the roller blind but also keeps the relative positions of the two rolling guides 2 in a very stable state, thereby helping to further improve the reliability and applicability of the roller blind positioning cord elastic structure.

[0028] like Figure 3 As shown, a laterally extending C-shaped gripper groove 41 is provided on the surface of the crossbar 4. The C-shaped gripper groove 41 facilitates hand gripping, thereby improving the convenience of raising and lowering the crossbar 4 and thus enhancing the applicability of the roller blind's elastic positioning structure.

[0029] like Figure 1 and Figure 2 As shown, the elastic positioning structure of the roller blind cord also includes a clamping screw 5, and the other end of the positioning cord 3 is wound or fitted onto the clamping screw 5. This allows the other end of the positioning cord 3 to be clamped and fixed in the corresponding position using the nut end of the clamping screw 5, which not only improves the convenience of fixing the other end of the positioning cord 3, but also improves the stability of fixing the other end of the positioning cord 3.

[0030] like Figure 1 and Figure 2 As shown, the roller blind cord elastic positioning structure also includes a reinforcing block 6, and the clamping screw 5 is screwed onto the reinforcing block 6. This strengthens the structural strength of the screw joint of the clamping screw 5 through the reinforcing block 6, thereby improving the stability and reliability of the clamping screw 5's installation and positioning, and further enhancing the reliability of the roller blind positioning cord elastic structure.

[0031] The positioning rope 3 is a steel wire rope. This gives the positioning rope 3 high structural strength and durability, thereby helping to further improve the reliability and applicability of the elastic structure of the roller shutter positioning rope.

[0032] like Figure 2 and Figure 3As shown, during actual installation, two springs 1 are arranged horizontally at the left and right ends of the horizontal frame 101 of the roller blind device 10. Holes (not shown in the figure) are provided at the left and right ends of the bottom of the horizontal frame 101 for the two positioning ropes 3 to pass through. The crossbar 4 is engaged with the lower end of the roller blind 20. Reinforcing blocks 6 are embedded at the lower ends of the left and right side frames 102 of the roller blind device 10. Clamping screws 5 are screwed onto the two reinforcing blocks 6, and these two clamping screws 5 clamp and fix the two positioning ropes 3 to the side frame 102 or the reinforcing block 6 through their nut ends. This utilizes the elastic structure of the roller blind positioning ropes to effectively limit the movement of the roller blind 20, ensuring that the tension of the two positioning ropes 3 remains consistent. This improves the balance of the roller blind's vertical movement, preventing deviation or displacement when the roller blind is pulled at any point. It offers good synchronization and easy operation, solving considerable problems for users. This elastic structure of the roller shutter positioning rope is very suitable for surface-mounted roller shutters on ships. It helps to stabilize and limit the roller shutter, reducing vibrations caused by wind and ship swaying during ship transportation. This not only helps to reduce the chance of damage to the roller shutter, but also avoids generating a lot of noise.

[0033] like Figures 2 to 5 As shown, the horizontal frame 101 includes a horizontal frame 103 and two end caps 104. Positioning holes 105 are respectively opened on the left and right end faces of the horizontal frame 103 (the two positioning holes 105 can be formed by a hole that passes through the horizontal frame 103 laterally). Two springs 1 are respectively arranged laterally in the left and right positioning holes 105. Two through holes are respectively opened on the bottom surface of the two end caps 104 and extend to the inner surface of the end caps 104. The two end caps 104 are respectively installed on the left and right ends of the horizontal frame 103 and the two through holes are respectively connected to the two positioning holes 105. The ends of the two springs 1 are respectively pressed against the inner wall of the corresponding end caps 104. One end of the two positioning ropes 3 is respectively fixed or pressed against the end of the two springs 1 away from the end caps 104. The other ends of the two positioning ropes 3 are respectively passed through the through holes on the corresponding end caps 104 and exit downwards. This not only helps improve the stability and reliability of spring 1's installation and positioning, but also helps spring 1 to exert a stable and reliable elastic holding effect, thereby helping to further improve the reliability of its use.

[0034] The spring 1 is a helical spring, and one end of the positioning rope 3 passes through the inner hole of the spring 1. One end of the positioning rope 3 is welded and fixed to the end of the spring 1 away from the end cover 104, or, a pressure block (not shown in the figure) abuts against the end of the spring 1 away from the end cover 104, and one end of the positioning rope 3 is welded and fixed or clamped to the pressure block by screws. In this way, the positioning rope 3 can receive the elastic force from the spring 1, thus meeting the needs of practical use.

[0035] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. An elastic positioning structure for a roller shutter cord, characterized in that: It includes two springs (1), two rolling guides (2), and two positioning ropes (3). The two rolling guides (2) are arranged side by side, and the two springs (1) are arranged horizontally above the two rolling guides (2). One end of one positioning rope (3) is connected to one end of the left spring (1), and the other end of the positioning rope (3) is lowered, passes under the left rolling guide (2), then to the right, passes over the top of the right rolling guide (2), and is then fixed downwards. One end of the other positioning rope (3) is connected to one end of the right spring (1), and the other end of the positioning rope (3) is lowered, passes under the right rolling guide (2), then to the left, passes over the top of the left rolling guide (2), and is then fixed downwards.

2. The elastic positioning structure for the roller blind cord according to claim 1, characterized in that: The rolling guide (2) consists of two guide wheels, and two positioning ropes (3) are respectively wound around the two guide wheels.

3. The elastic positioning structure for the roller blind cord according to claim 1, characterized in that: The rolling guide (2) is a guide wheel, and the two positioning ropes (3) are both wound around the guide wheel.

4. The elastic positioning structure for the roller blind cord according to claim 1, characterized in that: The rolling guide (2) is a guide roller, and the two positioning ropes (3) are both wound around the guide roller.

5. The elastic positioning structure for the roller blind cord according to claim 1, characterized in that: It also includes a crossbar (4), with two rolling guides (2) respectively set on the left and right ends of the crossbar (4).

6. The elastic positioning structure for the roller blind cord according to claim 5, characterized in that: The surface of the crossbar (4) is provided with a transversely extending C-shaped gripper groove (41).

7. The elastic positioning structure for the roller blind cord according to claim 1, characterized in that: It also includes a clamping screw (5), and the other end of the positioning rope (3) is wrapped or fitted onto the clamping screw (5).

8. The elastic positioning structure for the roller blind cord according to claim 7, characterized in that: It also includes a reinforcing block (6), on which the clamping screw (5) is screwed.

9. The elastic positioning structure for the roller blind cord according to claim 1, characterized in that: The positioning rope (3) is a steel wire rope.

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