Anti-locking screen window lower pulley assembly and screen window thereof

Abstract

The utility model discloses an anti-locking type screen window lower pulley assembly and a screen window thereof, the anti-locking type screen window lower pulley assembly is used for the bottom of the vertical edge of the screen window, and comprises a mounting seat, a limiting pulley seat, a limiting pulley and a lower pulley structure; the top of the mounting seat is used for being inserted into the bottom of the vertical edge of the screen window; a cavity with an opening in the bottom face is formed in the mounting base, and an n-shaped guide rail sliding groove penetrating through the cavity is formed in the bottom face of the mounting base. The limiting pulley base is located in the cavity, and the limiting pulley is located on the side face of the limiting pulley base. And the lower pulley structure is arranged on the limiting pulley seat in a lifting manner. The screen window comprises a screen window body, and the anti-locking screen window lower pulley assembly is arranged on the screen window body. The lifting mechanism is reasonable in structural arrangement, capable of being adjusted in a small range in a lifting mode, capable of preventing the screen door and window from being clamped due to inclination during sliding, beneficial to improving using smoothness, beneficial to improving using stability and reliability, high in applicability and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of screen windows, and in particular relates to an anti-stuck type lower pulley assembly for a screen window and the screen window. Background Art

[0002] During the use of screen windows, in order to facilitate the smooth translation of the screen windows in the window frame, corresponding pulley structures are generally provided at the top and bottom of the screen windows. The smoothness of opening and closing of the screen windows is improved by the coordinated sliding of the pulley structures. However, the pulley structure used in traditional screen windows is fixedly installed on the screen windows, and thus it cannot effectively provide buffering. It is prone to tilting and getting stuck during the translation process, thereby affecting the stability and effectiveness of use, and limiting its applicability and practicality. Summary of the invention

[0003] The utility model aims to provide an anti-stuck type screen window lower pulley assembly and a screen window which has a reasonable structure and is conducive to improving the stability of use.

[0004] One of the technical solutions to achieve the purpose of the utility model is: an anti-stuck type lower pulley assembly for a screen window, used for the bottom of the vertical edge of the screen window, including a mounting seat, a limiting pulley seat, a limiting pulley and a lower pulley structure;

[0005] The top of the mounting seat is used to be inserted into the bottom of the vertical side of the screen window;

[0006] A cavity with an open bottom surface is provided in the mounting seat, and an n-shaped guide rail slot passing through the cavity is provided on the bottom surface of the mounting seat;

[0007] The limiting pulley seat is located in the cavity, and the limiting pulley is located on the side of the limiting pulley seat;

[0008] The lower pulley structure can be lifted and lowered on the limiting pulley seat.

[0009] It is further preferred that: the lower pulley structure comprises a lower pulley seat, a lower pulley, a second spring, a first spring and an adjusting screw;

[0010] The top surface of the limiting pulley seat is provided with a U-shaped lifting guide groove;

[0011] The lower pulley seat is located in the U-shaped lifting guide groove, and the lower pulley is located on the side of the lower pulley seat, and the lower pulley and the limiting pulley are both located in the n-shaped guide rail groove;

[0012] The adjusting screw passes through the mounting seat and extends into the cavity, the second spring is sleeved on the adjusting screw, and the bottom end of the second spring abuts against the top surface of the mounting seat;

[0013] The first spring abuts between the top surface of the lower pulley seat and the top wall of the cavity, and the upper part of the first spring is sleeved on the bottom end of the adjusting screw.

[0014] It is further preferred that: an arc-shaped groove is provided on the outer wheel edge of the lower pulley;

[0015] The lower pulley and the limiting pulley are used on the 7-shaped guide rail of the bottom frame of the screen window.

[0016] More preferably, the number of the lower pulley is one.

[0017] Further preferably, there are two limiting pulleys, and the lower pulley is located on the perpendicular midline of the two limiting pulleys.

[0018] The second technical solution for achieving the purpose of the utility model is: a screen window, including a screen window body, on which the above-mentioned anti-stuck screen window lower pulley assembly is arranged.

[0019] The utility model has positive effects: the structure of the utility model is reasonably arranged, and after the mounting seat, the limiting pulley seat, the limiting pulley and the lower pulley structure are assembled, the lower pulley assembly can also be lifted and lowered to a certain extent, so that the bottom wheel can be effectively prevented from derailing when sliding, and the utility model also has a certain degree of lifting and lowering adjustment, which is conducive to preventing the occurrence of jamming, and is conducive to improving the stability and reliability of use, and has strong applicability and good practicality;

[0020] The lower pulley structure includes a lower pulley seat, a lower pulley, a second spring, a first spring and an adjusting screw. After assembly, the position can be adjusted by the adjusting screw, and the first spring and the second spring are used for lifting and lowering buffering, which is conducive to preventing the bottom wheel from derailing, improving the stability and reliability of use, and having strong applicability and good practicality.

[0021] Its screen window can prevent jamming and improve the smoothness and stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the utility model in use on a screen window frame.

[0026] Figure numerals: vertical edge of screen window 1, mounting seat 2, limiting pulley seat 3, limiting pulley 4, lower pulley structure 5, lower pulley seat 51, lower pulley 52, second spring 53, first spring 54, adjusting screw 55, n-shaped guide rail groove 6, U-shaped lifting guide groove 7, arc-shaped groove 8, screen window body 9. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0028] See Figure 1 to Figure 2 As shown, an anti-stuck lower pulley assembly for a screen is used for the bottom of a vertical edge 1 of the screen, comprising a mounting seat 2, a limiting pulley seat 3, a limiting pulley 4 and a lower pulley structure 5; during assembly, the top of the mounting seat is used to be inserted into the bottom of the vertical edge of the screen; a cavity with an opening on the bottom surface is provided in the mounting seat, and an n-shaped guide rail groove 6 passing through the cavity is provided on the bottom surface of the mounting seat; the limiting pulley seat is in the cavity, and the limiting pulley is on the side of the limiting pulley seat; the lower pulley structure can be raised and lowered on the limiting pulley seat. When in use, the lower pulley structure and the limiting pulley are used on the 7-shaped guide rail of the bottom frame of the screen. Through the above structure, not only the smoothness of translation can be improved, but also loosening or falling off can be prevented, the anti-stuck phenomenon can be improved, and the practicality is strong;

[0029] Moreover, in this embodiment, the lower pulley structure 5 includes a lower pulley seat 51, a lower pulley 52, a second spring 53, a first spring 54 and an adjusting screw 55; the top surface of the limiting pulley seat is provided with a U-shaped lifting guide groove 7; during assembly, the lower pulley seat is in the U-shaped lifting guide groove, and the lower pulley is on the side of the lower pulley seat, and the lower pulley and the limiting pulley are both in the n-shaped guide rail groove; the adjusting screw passes through the mounting seat and extends into the cavity, the second spring is sleeved on the adjusting screw, and the bottom end of the second spring abuts against the top surface of the mounting seat; the first spring abuts between the top surface of the lower pulley seat and the top wall of the cavity, and the upper part of the first spring is sleeved on the bottom end of the adjusting screw. It can realize position adjustment through the adjusting screw, and can realize lifting buffer adjustment in cooperation with the first spring and the second spring, ensuring that buffering can be achieved within a certain range, thereby preventing jamming or loosening and falling off.

[0030] Moreover, in actual application, an arc groove 8 is provided on the outer wheel edge of the lower pulley; the lower pulley and the limit pulley are used on the 7-shaped guide rail of the bottom frame of the screen window. The arc groove can prevent loosening or falling off, thereby improving the smoothness and effectiveness of translation.

[0031] In actual application, there is one lower pulley and two limiting pulleys, and the lower pulley is located on the mid-vertical line of the two limiting pulleys. Through the above structure, the effectiveness and stability of translation can be improved to prevent loosening or falling off.

[0032] The utility model has a reasonable structure, which includes a mounting seat, a limiting pulley seat, a limiting pulley and an upper pulley structure. After being assembled, the lower pulley assembly can be lifted up and down to a certain extent, so that the bottom wheel can be effectively prevented from derailing when sliding. The utility model also has a certain degree of lifting and lowering adjustment, which is beneficial to preventing the occurrence of jamming, and is beneficial to improving the stability and reliability of use. It has strong applicability and good practicality.

[0033] The lower pulley structure thereof includes a lower pulley seat, a lower pulley, a second spring, a first spring and an adjusting screw. After assembly, the position can be adjusted by the adjusting screw, and the lifting and lowering buffering can be performed by the first spring and the second spring, thereby facilitating preventing the bottom wheel from derailing, improving the stability and reliability of use, and having strong applicability and good practicality. Example 2

[0034] See Figure 3 As shown, this embodiment provides a screen window, including a screen window body 9, on which the above-mentioned anti-stuck screen window lower pulley assembly is arranged. The screen window can prevent the occurrence of stuck situations and improve the smoothness and stability of use.

[0035] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. An anti-stuck screen window lower pulley assembly, used at the bottom of the vertical edge of the screen window, characterized in that: It includes a mounting seat, a limiting pulley seat, a limiting pulley and a lower pulley structure; The top of the mounting seat is used to be inserted into the bottom of the vertical side of the screen window; A cavity with an open bottom surface is provided in the mounting seat, and an n-shaped guide rail slot passing through the cavity is provided on the bottom surface of the mounting seat; The limiting pulley seat is located in the cavity, and the limiting pulley is located on the side of the limiting pulley seat; The lower pulley structure can be lifted and lowered on the limiting pulley seat.

2. The anti-stuck screen window lower pulley assembly according to claim 1, characterized in that: The lower pulley structure comprises a lower pulley seat, a lower pulley, a second spring, a first spring and an adjusting screw; The top surface of the limiting pulley seat is provided with a U-shaped lifting guide groove; The lower pulley seat is located in the U-shaped lifting guide groove, and the lower pulley is located on the side of the lower pulley seat, and the lower pulley and the limiting pulley are both located in the n-shaped guide rail groove; The adjusting screw passes through the mounting seat and extends into the cavity, the second spring is sleeved on the adjusting screw, and the bottom end of the second spring abuts against the top surface of the mounting seat; The first spring abuts between the top surface of the lower pulley seat and the top wall of the cavity, and the upper part of the first spring is sleeved on the bottom end of the adjusting screw.

3. The anti-stuck screen window lower pulley assembly according to claim 2, characterized in that: An arc-shaped groove is arranged on the outer wheel edge of the lower pulley; The lower pulley and the limiting pulley are used on the 7-shaped guide rail of the bottom frame of the screen window.

4. The anti-stuck screen window lower pulley assembly according to claim 3, characterized in that: There is one lower pulley.

5. The anti-stuck screen window lower pulley assembly according to claim 4, characterized in that: There are two limiting pulleys, and the lower pulley is located on the mid-vertical line of the two limiting pulleys.

6. A screen window, comprising a screen window body, characterized in that: The screen body is provided with an anti-stuck screen lower pulley assembly as described in any one of claims 1 to 5.

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