A sliding rail device applied to a door closer

Abstract

The application discloses a sliding rail device applied to a door closer, and improves the technical problem of poor limiting effect on a pushing block. The device comprises a guide rail, a spring part and a pushing block, and further comprises: a fixing seat arranged in the guide rail; a limiting pin fixed on the pushing block; and a limiting groove arranged on the spring part. The spring part comprises a fixing section, a limiting section, a buffer section and a guide section arranged in sequence. The fixing section is connected with the fixing seat. The limiting section and the buffer section are respectively arc-shaped and jointly form an arch shape. The limiting pin can pass through the guide section and the buffer section in sequence and reach the limiting section. The limiting groove is arranged on the limiting section, and the limiting groove is used for clamping the limiting pin. The application can improve the limiting effect on the pushing block, thereby improving the locking stability of the door.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of door closers, and particularly relates to a sliding rail device applied to a door closer. BACKGROUND

[0002] A door closer is usually arranged between a door leaf and a door frame. At present, most door closers are sliding door closers. The sliding door closer mainly comprises a sliding rail device arranged on the door frame, a push block slidingly connected to the sliding rail device, and a rocker pivotally connected to the push block. With the opening and closing of the door leaf, the rocker can drive the push block to slide, and the locking of the door can be realized by locking the position of the push block.

[0003] The sliding rail device in the related art usually comprises a guide rail, a push block, and an arched spring sheet. The spring sheet is fixed in the sliding rail. When the push block passes the arched part of the spring sheet, the arched part of the spring sheet can limit the push block, thereby limiting the push block from retreating and realizing the locking of the door. However, the arched part of the spring sheet is used to limit the push block alone. Since the surface of the spring sheet is relatively smooth, the limiting effect on the push block is poor, and the push block is prone to retreat, thereby affecting the locking stability of the door.

[0004] Therefore, it is of great significance to improve the limiting effect on the push block and thereby improve the locking stability of the door. SUMMARY

[0005] To solve all or part of the above problems, the purpose of the present application is to provide a sliding rail device applied to a door closer, which can improve the limiting effect on the push block and thereby improve the locking stability of the door.

[0006] The present application provides a sliding rail device applied to a door closer, comprising a guide rail, a spring part, and a push block, and further comprising:

[0007] A fixed seat arranged in the guide rail;

[0008] A limiting pin fixed on the push block, and the axial direction of the limiting pin is not parallel to the sliding direction of the push block;

[0009] A limiting groove arranged on the spring part;

[0010] The spring part comprises a fixed segment, a limiting segment, a buffer segment, and a guide segment arranged in sequence. The fixed segment is connected with the fixed seat. The limiting segment and the buffer segment are respectively arc-shaped and jointly form an arch shape. The limiting pin can pass the guide segment and the buffer segment in sequence and reach the limiting segment. The limiting groove is arranged on the limiting segment, and the limiting groove is used for clamping the limiting pin.

[0011] Optionally, the curvature of the limiting section is not less than the curvature of the buffer section.

[0012] Optionally, the guiding section is close to the inner side wall of the guide rail, so as to facilitate the smooth sliding of the limiting pin onto the guiding section.

[0013] Optionally, the fixed seat is fixedly connected with an elastic buffer block on the side facing the push block, and when the push block abuts against the buffer block, the limiting pin can be clamped into the limiting groove.

[0014] Optionally, the spring part includes a plurality of U-shaped spring wires, the widths of the plurality of spring wires increase in sequence and are sleeved together, the open ends of the plurality of spring wires jointly form the fixed section and are respectively connected to the fixed seat, the closed ends of the plurality of spring wires jointly form the guiding section, and each spring wire is provided with a limiting groove, and the plurality of limiting grooves are aligned with each other and jointly form the limiting groove.

[0015] Optionally, the fixed seat is detachably connected with the guide rail.

[0016] Optionally, the fixed seat is integrally connected with a buffer pad made of rubber material, and the buffer pad connects the spring part and the fixed seat together.

[0017] Optionally, the fixed section of the spring part is provided with a lock hook, the fixed seat is provided with a locking groove, the locking groove is used for clamping the lock hook, and the buffer pad can fix the lock hook and the fixed section of the spring part on the fixed seat.

[0018] Optionally, the lock hook is integrally connected with the spring part.

[0019] From the above technical solution, it can be seen that the sliding rail device applied to the door closer has the following advantages:

[0020] The device further limits the position of the push block by the cooperation of the limiting pin and the limiting groove, reduces the risk of the push block returning, improves the limiting effect of the push block, makes the door be in a stable closed state, and further improves the locking stability of the door.

[0021] Other features and advantages of the present application will be described in the subsequent description. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, and are used to explain the technical solutions of the present application together with embodiments of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0023] Figure 1It is a schematic view of the overall structure of the embodiment of the present application.

[0024] Figure 2 It is a sectional view of the embodiment of the present application.

[0025] Figure 3 It is a schematic view of the structure of the spring part in the embodiment of the present application.

[0026] Figure 4 It is a front view of the spring wire in the embodiment of the present application.

[0027] Figure 5 It is a schematic view of the positional relationship between the spring part and the fixing seat in the embodiment of the present application.

[0028] Explanation of reference signs:

[0029] 1, guide rail; 2, push block; 3, fixing seat; 4, spring part; 41, fixing section; 42, limiting section; 43, buffer section; 44, guide section; 45, spring wire; 5, limiting pin; 6, limiting groove; 7, buffer block; 8, screw; 9, locking hook; 10, locking groove; 11, buffer pad; 12, limiting recess. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0031] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , the embodiment of the present application discloses a sliding rail device applied to a door closer, which comprises a guide rail 1, a push block 2 is connected in sliding mode in the guide rail 1, and a fixing seat 3 and a spring part 4 are arranged in the guide rail 1. The spring part 4 comprises a fixing section 41, a limiting section 42, a buffer section 43 and a guide section 44 arranged in sequence, and the fixing section 41 is connected with the fixing seat 3.

[0032] In one embodiment, as shown in Figure 1 , Figure 2 , the limiting section 42 and the buffer section 43 of the spring part 4 are respectively arc-shaped and jointly form an arch shape, the limiting pin 5 can pass through the guide section 44 and the buffer section 43 in sequence and reach the limiting section 42. At the same time, the side wall of the push block 2 is fixedly connected with the limiting pin 5, the axial direction of the limiting pin 5 is not parallel to the sliding direction of the push block 2, the limiting groove 6 is arranged on the limiting section 42 of the spring part 4, and the limiting pin 5 is clamped into the limiting groove 6, so as to realize further limiting of the push block 2.

[0033] The slide rail device applied to the door closer in this embodiment, by utilizing the cooperation of the limiting pin 5 and the limiting groove 6, further limits the position of the push block 2, reduces the risk of the push block 2 retracting, thereby improving the limiting effect of the push block 2, so that the door can be in a stable closed state, and thus improves the locking stability of the door.

[0034] In this embodiment, the limiting pin 5 is cylindrical, and the axial direction of the limiting pin 5 is perpendicular to the sliding direction of the push block 2. In other embodiments, the limiting pin 5 may also be elongated or prismatic, and the axial direction of the limiting pin 5 may not be perpendicular to the sliding direction of the push block 2, but it must be ensured that the axial direction of the limiting pin 5 is not parallel to the sliding direction of the push block 2.

[0035] In one embodiment, such as Figure 1 , Figure 2 As shown, the curvature of the limiting section 42 of the spring part 4 is not less than that of the buffer section 43, so as to improve the limiting effect on the limiting pin 5 and reduce the risk of the push block 2 retracting. At the same time, the guide section 44 of the spring part 4 is in close contact with the inner wall of the guide rail 1 to improve the guiding effect on the limiting pin 5, thereby facilitating the smooth sliding of the limiting pin 5 onto the guide section 44 and reducing the risk of jamming.

[0036] In one embodiment, such as Figure 1 , Figure 2 As shown, a flexible buffer block 7 is fixedly connected to the side of the fixed base 3 facing the push block 2. When the push block 2 abuts against the buffer block 7, the limiting pin 5 can be engaged into the limiting groove 6. By setting the buffer block 7, the risk of the push block 2 directly impacting the fixed base 3 is reduced, which can reduce noise and the risk of deformation of the positioning base or the push block 2. In this embodiment, the buffer block 7 is made of rubber; in other embodiments, it can also be made of elastic materials such as latex or silicone.

[0037] In one embodiment, such as Figure 3 , Figure 4 As shown, the spring part 4 includes multiple U-shaped spring wires 45 (only two spring wires 45 are shown in this embodiment). The width of the multiple spring wires 45 increases sequentially and they are nested together. That is, the spring wire 45 with the smallest width is located on the innermost side, the spring wire 45 with the largest width is located on the outermost side, and the other spring wires 45 are arranged in order of width, so that the multiple spring wires 45 together form a plate shape.

[0038] In one embodiment, such as Figure 3 , Figure 4As shown, the open ends of the plurality of spring wires 45 jointly form the fixing section 41 and are respectively connected to the fixing base 3, the closed ends of the plurality of spring wires 45 jointly form the guiding section 44, the middle positions of the plurality of spring wires 45 are respectively arched and form the buffer section 43 and the limiting section 42, the limiting section 42 of each spring wire 45 is concave-pressed to form a limiting groove 12, and the plurality of limiting grooves 12 are aligned with each other and jointly form the limiting slot 6.

[0039] In one embodiment, as shown in Figure 2 , Figure 5 As shown, the fixing base 3 is detachably connected with the guide rail 1 to facilitate the disassembly and replacement of the fixing base 3 by the staff. In this embodiment, the fixing base 3 is detachably connected with the guide rail 1 through the screw 8, and in other embodiments, other detachable connection modes such as clamping can also be used.

[0040] In one embodiment, as shown in Figure 3 , Figure 5 As shown, the fixing section 41 of the spring part 4 is integrally formed with the locking hook 9, that is, the open end of each spring wire 45 is bent to form the locking hook 9. Meanwhile, the fixing base 3 is provided with the locking slot 10 for the locking hook 9 to be clamped into.

[0041] In one embodiment, as shown in Figure 2 , Figure 5 As shown, the fixing base 3 is provided with the buffer pad 11 made of rubber, and the buffer pad 11 is integrally connected to the fixing base 3 through the rubber fluidization process, and at the same time, the buffer pad 11 fixes the locking hook 9 and the fixing section 41 of the spring part 4 on the fixing base 3, so that the spring part 4 and the fixing base 3 form an integral whole.

[0042] As can be seen from the above, the device can further limit the position of the push block 2, reduce the risk of the push block 2 returning, improve the limiting effect of the push block 2, make the door stable in the closed state, and improve the locking stability of the door. At the same time, through the cooperation of the limiting pin 5 and the limiting slot 6, the door stopping position is more accurate and stable, and the buffer block 7 can also improve the buffering effect of the push block 2 and relieve the rigid extrusion. Furthermore, the connection structure of each component of the slide rail device is relatively simple, so as to facilitate the assembly of each component by the staff and improve the production efficiency.

[0043] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by the skilled person in the field to which the present application belongs.

[0044] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise expressly and specifically limited.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A slide rail device for a door closer, comprising a guide rail (1), a spring (4), and a push block (2), characterized in that, Also includes: A fixed base (3) is disposed within the guide rail (1); A limiting pin (5) is fixed on the push block (2), and the axial direction of the limiting pin (5) is not parallel to the sliding direction of the push block (2); A limiting groove (6) is provided on the spring part (4); The spring section (4) includes a fixed section (41), a limiting section (42), a buffer section (43), and a guide section (44) arranged in sequence. The fixed section (41) is connected to the fixed seat (3). The limiting section (42) and the buffer section (43) are respectively arc-shaped and together form an arch shape. The limiting pin (5) can pass through the guide section (44) and the buffer section (43) in sequence and reach the limiting section (42). The limiting groove (6) is provided on the limiting section (42), and the limiting groove (6) is for the limiting pin (5) to be inserted into. The radius of the limiting segment (42) is not less than the radius of the buffer segment (43); The guide section (44) is close to the inner wall of the guide rail (1) so that the limiting pin (5) can slide smoothly onto the guide section (44); The spring part (4) includes a plurality of U-shaped spring wires (45), the width of the plurality of spring wires (45) increases sequentially and they are sleeved together, the open ends of the plurality of spring wires (45) together form a fixed section (41) and are respectively connected to the fixed seat (3), the closed ends of the plurality of spring wires (45) together form the guide section (44), each of the spring wires (45) is provided with a limiting groove (12), the plurality of limiting grooves (12) are aligned with each other and together form a limiting groove (6).

2. The slide rail device for a door closer according to claim 1, characterized in that, The fixed base (3) is fixedly connected to an elastic buffer block (7) on the side facing the push block (2). When the push block (2) abuts against the buffer block (7), the limiting pin (5) can be inserted into the limiting groove (6).

3. The slide rail device for a door closer according to claim 1, characterized in that, The fixed base (3) is detachably connected to the guide rail (1).

4. The slide rail device for a door closer according to claim 1, characterized in that, A rubber buffer pad (11) is integrally formed on the fixed base (3), and the buffer pad (11) connects the spring part (4) to the fixed base (3).

5. The slide rail device for a door closer according to claim 4, characterized in that, The fixing section (41) of the spring part (4) is provided with a locking hook (9), and the fixing seat (3) is provided with a locking groove (10). The locking groove (10) is for the locking hook (9) to be engaged, and the buffer pad (11) can fix the locking hook (9) and the fixing section (41) of the spring part (4) to the fixing seat (3).

6. The slide rail device for a door closer according to claim 5, characterized in that, The locking hook (9) is integrally formed and connected with the spring part (4).

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