Double helix adjustable stopper

Abstract

The present invention relates to the field of curtains, in particular to a double - helix adjustable stopper. The double - helix adjustable stopper includes a connecting rod seat, a screw rod seat and a fixing plate. The head of the connecting rod seat is a mounting plate, and a receiving body a is connected through the middle of the mounting plate. A section of helix is provided at the bottom of the receiving body a, and a notch is provided on the helix from left to right. The bottom of the connecting rod seat is fixed on a fixed seat. The head of the screw rod seat is a toothed disc, and a receiving body b is connected through the middle of the toothed disc. A screw rod is provided at the bottom of the receiving body b. The screw rod seat is inserted into the connecting rod seat, and a movable fixer is sleeved on the screw rod. A head cover is sleeved outside the receiving body a. A cross - core rod body extends out from a perforation in the fixing plate. A receiving body c is connected through the middle of the fixing plate. Springs are provided at the bottom of the receiving body c and the cross - core rod body. The cross - core rod body is buckled on the receiving body c, and a runner is sleeved on the helix. The beneficial effect of the present invention is that it can not only fix the upper limit position, but also adjust the lower limit fixed position.

Description

Technical Field

[0001] The present invention relates to the field of curtains, especially a double helix adjustable stopper. Background Art

[0002] The up and down movement of the curtain is realized by a curtain head. The curtain head usually needs to use a stopper. An ordinary stopper can only fix the upper limit or the lower limit, which is very inconvenient to use. Summary of the Invention

[0003] In order to solve the above technical problem of only being able to fix the upper limit or the lower limit, the present invention provides a double helix adjustable stopper.

[0004] The technical solution of the present invention is as follows:

[0005] The double helix adjustable stopper includes a connecting rod seat, a screw rod seat and a fixing plate. The head of the connecting rod seat is a mounting plate. The middle of the mounting plate is connected to a receiving body a in a through manner. There is a section of helix at the bottom of the receiving body a. The helix has a notch from left to right. The bottom of the connecting rod seat is fixed on a fixed seat. The head of the screw rod seat is a toothed disc. The middle of the toothed disc is connected to a receiving body b in a through manner. There is a screw rod at the bottom of the receiving body b. The screw rod seat is inserted into the connecting rod seat. A movable fixer is sleeved on the screw rod and extends out from the notch. A head sleeve is sleeved outside the receiving body a. A cross core rod extends out from a perforation in the fixing plate. The middle of the fixing plate is connected to a receiving body c in a through manner. Springs are provided at the bottom of the receiving body c and the cross core rod. The cross core rod is buckled on the receiving body c. A runner is sleeved on the helix.

[0006] A limiting block is provided at the bottom of the helix. A through hole is provided on the side wall of the limiting block.

[0007] An annular recessed groove is provided on the surface of the fixed seat. A clamping groove for fixing the limiting block is provided in the middle of the annular recessed groove. A hole groove is provided on one side of the clamping groove.

[0008] The perforation is a non-circular hole. The up and down of the perforation is parallel, and the left and right are arc-shaped.

[0009] A cross core rod is provided in the receiving body b. The head of the cross core rod is a cross core seat, and the cross section of the cross core seat is cross-shaped.

[0010] A retaining bar is provided in the middle at the bottom of the receiving body c. A cross core rod is provided in the receiving body c. A buckle body is provided at the lower part of the cross core rod. The buckle body is buckled on both sides of the bottom of the receiving body c. A spring is provided between the bottom of the cross core rod and the retaining bar.

[0011] A screw snap a is provided at the bottom of the receiving body a. A screw snap b is provided on the runner. The screw snap a is in contact with the screw snap b. Protrusions are evenly distributed on the side wall of the runner.

[0012] On both sides of the surface of the mounting plate, fixing strips are provided up and down, with a gap between the fixing strips, and the limiting blocks b on both sides of the back of the fixing plate are clamped at the gap.

[0013] Using the technical solution of the present invention, the structure is novel, the design is ingenious and simple. It can not only fix the upper limit position, but also adjust the lower limit fixing position, so as to better meet the requirements of adjusting the curtain at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is a schematic structural diagram of an embodiment of the present invention;

[0016] Figure 3 and 4 is a schematic structural diagram of the fixing plate of the present invention;

[0017] Figure 5 and 11 is a schematic structural diagram of the connecting rod seat of the present invention;

[0018] Figure 6 is a schematic structural diagram of the fixing seat of the present invention;

[0019] Figure 7 is a schematic structural diagram of the runner of the present invention;

[0020] Figure 8 is a schematic structural diagram of the mobile fixer of the present invention;

[0021] Figure 9 is a schematic structural diagram of the cross core rod body of the present invention;

[0022] Figure 10 is a schematic structural diagram of the screw rod seat of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described below with reference to the drawings and embodiments. Embodiment

[0024] As Figure 1 and 2The double - helix adjustable stopper shown in FIGS. 3, 4, 5, 6, 7, 8, 9, 10, 11 includes a connecting rod seat 2, a screw rod seat 6 and a fixing plate 7. The head of the connecting rod seat 2 is a mounting plate 12. There is a through - connection accommodation body a13 in the middle of the mounting plate 12. There is a section of helix 14 at the bottom of the accommodation body a13. The helix 14 has a notch from left to right. The bottom of the connecting rod seat 2 is fixed on the fixed seat 1. The head of the screw rod seat 6 is a toothed disc 18. There is a through - connection accommodation body b19 in the middle of the toothed disc 18. There is a screw rod 20 at the bottom of the accommodation body b19. The screw rod seat 6 is inserted into the connecting rod seat 2. A moving fixator 3 is sleeved on the screw rod 20. The moving fixator 3 extends out from the notch. There is a head cover 5 sleeved outside the accommodation body a13. A cross - core rod body 8 extends out from the perforation in the fixing plate 7. There is a through - connection accommodation body c22 in the middle of the fixing plate 7. Springs are provided at the bottom of the accommodation body c22 and the cross - core rod body 8. The cross - core rod body 8 is buckled on the accommodation body c22. A runner 4 is sleeved on the helix 14.

[0025] A limiting block 15 is provided at the bottom of the helix 14. A through - hole 16 is provided on the side wall of the limiting block 15.

[0026] The surface of the fixed seat 1 is provided with an annular recessed groove 10. There is a clamping groove 9 for fixing the limiting block 15 in the middle of the annular recessed groove 10. A hole groove 17 is provided on one side of the clamping groove 9. The fixed seat 1 plays a fixing role and restricts the moving fixator 3 from falling outside the stroke.

[0027] The perforation is a non - circular hole. The upper and lower parts of the perforation are parallel, and the left and right parts are arc - shaped.

[0028] A cross - core rod body 8 is provided in the accommodation body b19. The head of the cross - core rod body 8 is a cross - core seat, and the cross - section of the cross - core seat is cross - shaped.

[0029] A retaining strip 23 is provided in the middle at the bottom of the accommodation body c22. A cross - core rod body 8 is provided in the accommodation body c22. A buckle body 21 is provided at the lower part of the cross - core rod body 8. The buckle body 21 is buckled on both sides at the bottom of the accommodation body c22. A spring is provided between the bottom of the cross - core rod body 8 and the retaining strip 23.

[0030] A screw - thread bayonet a24 is provided at the bottom of the accommodation body a13. A screw - thread bayonet b25 is provided on the runner 4. The screw - thread bayonet a24 is in contact with the screw - thread bayonet b25. Convex blocks 26 are evenly distributed on the side wall of the runner 4.

[0031] Fixing strips 27 are provided on both sides of the upper and lower surfaces of the mounting plate 12. There is a gap between the fixing strips 27. Limiting blocks b on both sides of the back of the fixing plate 7 are clamped at the gap. There are hole seats on the fixing strips 27 and are fixed by screws. The limiting blocks b are clamped between the two fixing strips 27 to play a limiting role.

[0032] During use, the screw rod base 6 rotates, and the screw rod 20 also rotates accordingly, driving the movable fixator 3 to move left and right to adjust and fix the position, achieving the lower limit adjustment. The position of the runner 4 is between the movable fixator 3 and the accommodating body a13. There is a runner 4 on the screw body 14. Through the fixing plate 7, the screw body 14 and the fixed seat 1, the runner 4 rotates on the thread and moves to various positions, enabling both the upper limit and the lower limit to be fixed. The upper limit is the inner side wall of the contact wall of the fixed seat. At this time, the curtain tube is at the highest position. The lower limit is the movable position, and the runner is movably arranged at an adjustable position. At this time, the curtain tube can be at any position. The cross-core rod body 8 is telescopically fixed to the fixing plate 7 to prevent it from rotating. There are components that hold the cross-core seat to prevent rotation. On both side walls of the cross-core rod body 8, there are downwardly formed buckle bodies 21, and an annular body 11 is provided in the middle of the bottom. The annular body 11 fixes the spring to prevent the spring from falling off. The spring facilitates telescoping and installation, and the head cover rotates in conjunction with the curtain tube.

[0033] It should be understood that the above are only the preferred embodiments of the present invention and are not sufficient to limit the technical solutions of the present invention. For those of ordinary skill in the art, within the spirit and principles of the present invention, additions, deletions, substitutions, transformations or improvements can be made according to the above description. All these technical solutions after the above-mentioned additions, deletions, substitutions, transformations or improvements shall fall within the protection scope of the appended claims of the present invention.

Claims

1. Double helix adjustable stopper, comprising a connecting rod seat (2), a screw rod seat (6) and a fixing plate (7), characterized in that: The head of the connecting rod base (2) is the mounting plate (12). The middle of the mounting plate (12) is connected through to the receiving body a (13). At the bottom of the receiving body a (13) is provided with a section of spiral body (14). The spiral body (14) has a notch from left to right. The bottom of the connecting rod base (2) is fixed on the fixed seat (1). The head of the screw rod base (6) is the toothed disc (18). The middle of the toothed disc (18) is connected through to the receiving body b (19). At the bottom of the receiving body b (19) is provided with a screw rod (20). The screw rod base (6) is inserted into the connecting rod base (2). The screw rod (20) is sleeved with a movable fixator (3). The movable fixator (3) extends out from the notch. A head cover (5) is sleeved outside the receiving body a (13). The cross-shaped core rod body (8) extends out from the perforation in the fixing plate (7). The middle of the fixing plate (7) is connected through to the receiving body c (22). Springs are provided at the bottom of the receiving body c (22) and the cross-shaped core rod body (8). The cross-shaped core rod body (8) is buckled on the receiving body c (22). A runner (4) is sleeved on the spiral body (14). When the screw rod base (6) rotates, the screw rod (20) also rotates accordingly, driving the movable fixator (3) to move left and right, moving and adjusting the fixing position to achieve lower limit adjustment. The position of the runner (4) is between the movable fixator (3) and the receiving body a (13). There is a runner (4) on the spiral body (14). Through the fixing plate (7), the spiral body (14) and the fixed seat (1), the runner (4) rotates on the thread and moves to various positions, achieving both upper limit fixation and lower limit fixation. The upper limit is the inner side wall of the contact wall of the fixed seat. At this time, the curtain tube is at the highest position. The lower limit is the movable position. The runner is movably arranged at an adjustable position. At this time, the curtain tube can be at any position. The cross-shaped core rod body (8) is a telescopic fixation, fixed to the fixing plate (7) to prevent it from rotating. There are components to hold the cross-shaped core seat to prevent rotation. On both side walls of the cross-shaped core rod body (8), downwardly formed buckle bodies (21) are provided. In the middle of the bottom is provided with an annular body (11). The annular body (11) fixes the spring to prevent the spring from falling off. The spring is for easy telescoping and convenient installation. The head cover rotates in cooperation with the curtain tube.

2. The double helix adjustable stopper according to claim 1, characterized in that: A limit block a (15) is provided at the bottom of the spiral body (14). A through hole (16) is provided on the side wall of the limit block a (15).

3. The double helix adjustable stopper according to claim 1, characterized in that: An annular recessed groove (10) is provided on the surface of the fixed seat (1). A card slot (9) for fixing the limit block a (15) is provided in the middle of the annular recessed groove (10). A hole slot (17) is provided on one side of the card slot (9).

4. The double-helix adjustable stopper according to claim 1, characterized in that: The perforation is a non-circular hole. The upper and lower parts of the perforation are parallel, and the left and right are arc-shaped.

5. The double helix adjustable stopper according to claim 1, characterized in that: The cross-shaped core rod body (8) is provided in the receiving body b (19). The head of the cross-shaped core rod body (8) is the cross-shaped core seat, and the cross-section of the cross-shaped core seat is cross-shaped.

6. The double helix adjustable stopper according to claim 1, characterized in that: A stop bar (23) is provided in the middle of the bottom of the receiving body c (22). The cross-shaped core rod body (8) is provided in the receiving body c (22). A buckle body (21) is provided at the lower part of the cross-shaped core rod body (8). The buckle body (21) is buckled on both sides of the bottom of the receiving body c (22). A spring is provided between the bottom of the cross-shaped core rod body (8) and the stop bar (23).

7. The double helix adjustable stopper according to claim 1, wherein: The bottom of the accommodating body a (13) is provided with a spiral bayonet a (24), the runner (4) is provided with a spiral bayonet b (25), the spiral bayonet a (24) contacts the spiral bayonet b (25), and bumps (26) are evenly distributed on the side wall of the runner (4).

8. The double helix adjustable stopper according to claim 1, wherein: On both sides of the surface of the mounting plate (12), fixing strips (27) are provided up and down. There is a gap between the fixing strips (27), and the limiting blocks b on both sides of the back surface of the fixing plate (7) are clamped at the gap.

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