Mounting structure of sliding supporting rod

Abstract

The mounting structure comprises a supporting frame, the supporting frame comprises first supporting parts arranged in a front-back symmetry mode and sliding supporting rods arranged between the two first supporting parts in a left-right symmetry mode, threaded holes are formed in the two ends of each sliding supporting rod, and the threaded holes are configured to be in threaded connection with the first supporting parts; a positioning assembly is arranged between the sliding supporting rod and the first supporting part and comprises a clamping head and a gear groove, the clamping head is arranged on one of the sliding supporting rod and the first supporting part, and a positioning opening is formed in the other one of the sliding supporting rod and the first supporting part; through guiding of the positioning assembly, the orientation and posture of the sliding supporting rod are kept unchanged when the sliding supporting rod is installed on the first supporting part. According to the installation structure of the sliding supporting rod, in the screwing and fixing process of the sliding supporting rod, the sliding supporting rod cannot deflect after being positioned by the positioning assembly, so that the positioning opening in the sliding supporting rod is always kept at the position capable of being aligned with the positioning pin.

Description

Technical Field

[0001] The utility model generally relates to the technical field of seats, and in particular to an installation structure of a sliding support rod. Background Art

[0002] In order to adapt to the growth of children's body, the applicant has developed a children's chair (see attached Figure 1 and attached Figure 2 ), the child chair comprises a back support 2, an armrest portion 3, a seat 4 and four chair legs 5, the back support 2 and the armrest portion 3 are integrally formed, and a connecting portion 310 protrudes from the lower end of the armrest portions 3 on both sides, and a connecting groove 311 is provided through the connecting portion 310 along the front-to-back direction; a supporting frame 1 is provided at the bottom end of the seat 4, the seat 4 and the chair legs 5 are connected through the supporting frame 1, the two chair legs 5 located on the same side along the front-to-back direction are connected by a horizontally arranged first crossbeam 510, and the two first crossbeams 510 on the front and rear sides are connected by two vertical second crossbeams 520; the supporting frame 1 comprises two sliding support rods 101 arranged symmetrically on the left and right, the connecting portion 310 is sleeved on the sliding support rod 101 through the connecting groove 311, so that the connecting portion 310 can slide forward and backward relative to the sliding support rod 101, and then the backrest 201 and the armrest portion 3 on the back support 2 can slide forward and backward relative to the seat 4, so that the child can adjust the backrest 201 and the armrest portion 3 to a suitable position according to the growth of the body.

[0003] The above-mentioned child chair is also provided with a gear adjustment mechanism, by providing a positioning pin 320 on the connecting portion 310, and the sliding support rod 101 having a plurality of positioning holes 102, when the connecting portion 310 slides on the sliding support rod 101, the positioning pin 320 is sequentially engaged with the positioning holes 102, thereby achieving gear adjustment. However, in order to make the adjustment process of the gear adjustment mechanism smooth, it is necessary to ensure that the positioning holes 102 on the sliding support rod 101 are aligned with the positioning pin 320 on the connecting portion 310.

[0004] In order to solve the above problem, the positioning opening 102 is opened on the sleeve, which is composed of two semicircular tubes that can be opened and closed freely. After the sliding support rod 101 is installed on the seat 4, the sleeve is sleeved on the sliding support rod 101, so as to ensure that the positioning opening 102 after sleeved can be aligned with the positioning pin 320. However, this solution requires additional processing and manufacturing of the sleeve, which is costly.

[0005] The applicant also provides threaded holes at both ends of the sliding support rod 101, and the sliding support rod 101 is threadedly connected to the support frame 1 through the threaded holes, so that the sliding support rod 101 is easy to load and unload, so as to ensure that the positioning port 102 after installation can be aligned with the positioning pin 320. However, during the threading process of the sliding support rod 101, it is inconvenient to fix the sliding support rod 101 itself, so that when the screw is screwed, the sliding support rod 101 is easily rotated along with the screw, and the position of the positioning port 102 is deflected, resulting in the inability to align with the positioning pin 320.

[0006] In summary, the main problem that needs to be solved currently is how to open the positioning hole 102 on the sliding support rod 101 and save costs while ensuring that the sliding support rod 101 does not deflect during installation and that the positioning hole 102 after installation can be aligned with the positioning pin 320. Summary of the invention

[0007] In view of the above defects or deficiencies in the above background technology, it is desirable to provide a mounting structure for a sliding support rod. By providing a positioning assembly, during the process of screwing and fixing the sliding support rod, the sliding support rod is positioned by the positioning assembly and will not deflect when subjected to the twisting force of the screw, so that the position of the positioning port on the sliding support rod remains unchanged, and the positioning port is always kept at a position that can be aligned with the positioning pin.

[0008] The effect of the utility model is achieved in this way:

[0009] The present application provides an installation structure of a sliding support rod, including a support frame, the support frame includes a first support part symmetrically arranged in the front and rear, and a sliding support rod symmetrically arranged between the two first support parts, first threaded holes are opened at both ends of the sliding support rod, the sliding support rod is clamped between the two first support parts, the first threaded hole is configured to be threadedly connected to the first support part, and a positioning assembly is arranged between the sliding support rod and the first support part, the positioning assembly includes a clamping head and a limiting groove, the clamping head is arranged on one of the sliding support rod and the first support part, and the limiting groove is arranged on the other of the sliding support rod and the first support part; through the guidance of the positioning assembly, the orientation and posture of the sliding support rod when installed on the first support part remain unchanged.

[0010] Furthermore, the first support part is an angle iron structure, the first support part includes a first connecting part and a first positioning part perpendicular to the first connecting part, and the limiting groove is provided in the first positioning part. While ensuring the strength of the support frame itself, the overall structure of the support frame is lighter and easier to install.

[0011] Furthermore, the clamp is a plate-like protrusion that protrudes from the side wall of the sliding support rod in two axial directions, and a second threaded hole is provided on the first positioning portion, and the second threaded hole is located below the limiting groove. When the clamp is inserted into the limiting groove, the second threaded hole is aligned with the first threaded hole. When the clamp is inserted into the limiting groove, the sliding support rod naturally droops with the clamp as a support point under its own gravity, so that the first threaded hole on the sliding support rod can be aligned with the second threaded hole below the limiting groove, making the installation operation of the sliding support rod more convenient.

[0012] Furthermore, the limiting groove is arranged at a side opening away from the first connecting part, and the clamp head can be clamped into the limiting groove from the opening, thereby ensuring that the sliding support rod is not easy to rotate after being clamped to the first supporting part, and making the installation operation of the sliding support rod very simple.

[0013] Furthermore, the first support part is a square tube structure, and the limiting groove is provided in the first support part. The support frame itself has high strength and is not easy to bend or break under pressure.

[0014] Furthermore, the limiting groove is a square slot hole provided on the first support part, a second threaded hole is provided at the bottom of the limiting groove, the clamp head is a block-shaped protrusion protruding axially from both ends of the sliding support rod, the first threaded hole is provided on the clamp head, and when the clamp head is clamped into the limiting groove, the second threaded hole is aligned with the first threaded hole. After the clamp head is clamped into the limiting groove, the clamp head cannot rotate relative to the limiting groove, thereby ensuring the connection strength between the sliding support rod and the first support part.

[0015] Furthermore, an opening is provided on the upper side of the limiting groove, and the clamping head can be clamped into the limiting groove from the opening, thereby ensuring that the sliding support rod is not easy to rotate after being clamped onto the first support part, and making the installation operation of the sliding support rod very simple.

[0016] Furthermore, the support frame also includes two second support parts vertically arranged between the two first support parts, so that the overall strength of the support frame is higher and the stability is good.

[0017] The installation structure of the sliding support rod provided by the present application sets a positioning assembly. When installing the sliding support rod, the clamping head is first inserted into the gear groove, so that the sliding support rod can be stably clamped on the first support part and is not easy to rotate. Then screws are screwed into the threaded holes on both sides of the sliding support rod to fix the sliding support rod on the first support part. During the process of screwing and fixing the sliding support rod, the sliding support rod is positioned by the positioning assembly and will not deflect when subjected to the twisting force from the screw, so that the position of the positioning port on the sliding support rod remains unchanged at all times, and the positioning port is always kept in a position that can be aligned with the positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a children's chair provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the bottom structure of a children's chair provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a three-dimensional structure when the support frame provided in an embodiment of the present application is composed of square tubes;

[0022] Figure 4 A schematic diagram of a three-dimensional structure when the support frame provided in an embodiment of the present application is composed of angle irons;

[0023] Figure 5 A schematic diagram of the connection structure between the sliding support rod and the support frame provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the connection structure between the support frame and the chair legs provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of the side structure of the child chair provided in the embodiment of the present application when adjusted to the front end;

[0026] Figure 8 A schematic diagram of the side structure of the child chair provided in the embodiment of the present application when adjusted to the rearmost end;

[0027] Fig. 9 A schematic diagram of the connection structure between the connection portion and the sliding support rod provided in an embodiment of the present application;

[0028] Fig.10 A schematic diagram of the internal structure of the connecting portion provided in an embodiment of the present application.

[0029] The figures are marked as follows: 1-sliding mechanism, 101-sliding support rod, 102-positioning port, 103-clamp, 104-first threaded hole, 110-first supporting portion, 111-first connecting portion, 112-first positioning portion, 113-shift groove, 114-second threaded hole, 120-second supporting portion, 121-second connecting portion, 122-second positioning portion, 123-avoidance area, 2-back bracket, 201-backrest, 3-armrest portion, 310-connecting portion, 311-connecting groove, 312-connecting rod, 320-positioning pin, 4-seat, 5-chair leg, 510-first beam, 520-second beam. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0031] Please refer to the attached Figure 1-10 The embodiment of the present application provides an installation structure of a sliding support rod, including a first support portion 110 symmetrically arranged front to back, and a sliding support rod 101 symmetrically arranged between the two first support portions 110, first threaded holes 104 are opened at both ends of the sliding support rod 101, the sliding support rod 101 is clamped between the two first support portions 110, the first threaded holes 104 are configured to be threadedly connected to the first support portion 110, and a positioning component is arranged between the sliding support rod 101 and the first support portion 110, the positioning component includes a clamping head 103 and a limiting groove 113, the clamping head 103 is arranged on one of the sliding support rod 101 and the first support portion 110, and the limiting groove 113 is arranged on the other of the sliding support rod 101 and the first support portion 110; through the guidance of the positioning component, the orientation and posture of the sliding support rod 101 when installed on the first support portion 110 remain unchanged.

[0032] In this embodiment, by setting a positioning component, when installing the sliding support rod 101, the clamping head 103 is first inserted into the shifting groove 113, so that the sliding support rod 101 can be stably clamped on the first support part 110 and is not easy to rotate, and then screws are screwed into the threaded holes on both sides of the sliding support rod 101 to fix the sliding support rod 101 on the first support part 110; in the process of screwing and fixing the sliding support rod 101, the sliding support rod 101 is positioned by the positioning component and will not deflect when subjected to the twisting force from the screw, so that the position of the positioning port 102 on the sliding support rod 101 always remains unchanged, and the positioning port 102 always remains in a position that can be aligned with the positioning pin 320.

[0033] In some embodiments of the present application, the first support portion 110 is an angle iron structure, and the first support portion 110 includes a first connecting portion 111 and a first positioning portion 112 perpendicular to the first connecting portion 111 , and the limiting groove 113 is opened in the first positioning portion 112 .

[0034] In this embodiment, by designing the first support portion 110 as an angle iron structure, the strength of the support frame 1 itself is ensured while the overall structure of the support frame 1 is made lighter and easier to install; not only that, the first support portion 110 and the second support portion 120 avoid the first beam 510 and the second beam 520 of the chair leg 5 through the angle between the two mutually perpendicular parts of the angle iron, not only when the chair leg 5 is installed on the support frame 1, a pair of adjacent side walls of the first beam 510 and the second beam 520 are fitted in the angle area, thereby improving the connection strength between the support frame 1 and the chair leg 5, but also when installing the chair leg 5, it is easy to position the chair leg 5 through the angle area of ​​the angle iron, making the installation operation of the chair leg 5 more convenient.

[0035] The support frame 1 further includes a second support portion 120 disposed between the two first support portions 110. The second support portion 120 is also an angle iron structure, including a second connection portion 121 and a second positioning portion 122 perpendicular to the second connection portion 411. The interval between the two second positioning portions 122 is a avoidance area 123. The first positioning portion 112 is provided with an opening at a portion opposite to the avoidance area 123, so that the avoidance area 123 is provided through in the front-to-back direction. When installing the chair leg 5, the second crossbeam 520 on the chair leg 5 can be easily inserted between the second support portions 120 through the portion of the avoidance area 123 that passes through the front-to-back direction, making the installation operation of the chair leg 5 easier.

[0036] Among them, the first positioning parts 112 on the two first supporting parts 110 are symmetrical and close to each other, and the second positioning parts 122 on the two second supporting parts 120 are symmetrical and far away from each other, so that the first positioning parts 112 and the second positioning parts 122 on both sides are connected as a whole, and the first positioning parts 112 and the second positioning parts 122 on the left and right sides are connected to form a positioning strip for positioning the crossbeam of the chair leg 5, and the shape of the positioning strip is consistent with the shape of the side of the first crossbeam 510 and the second crossbeam 520, so that when the chair leg 5 is installed on the supporting frame 1, the crossbeam on the chair leg 5 can be attached to and clamped in the middle by the positioning strips on both sides, and the positioning effect is better.

[0037] In some embodiments of the present application, the clamping head 103 is a plate-like protrusion that protrudes axially in two sections from the side wall of the sliding support rod 101, and a second threaded hole 114 is opened on the first positioning portion 112. The second threaded hole 114 is located below the limiting groove 113. When the clamping head 103 is inserted into the limiting groove 113, the second threaded hole 114 is aligned with the first threaded hole 104.

[0038] In this embodiment, the clamping head 103 is a plate-like protrusion protruding from the side wall of the sliding support rod 101 at both ends, so that when the clamping head 103 is clamped into the limiting groove 113, the sliding support rod 101 naturally droops with the clamping head 103 as the support point under its own gravity, so that the first threaded hole 104 on the sliding support rod 101 can be aligned with the second threaded hole 114 below the limiting groove 113, making the installation operation of the sliding support rod 101 more convenient.

[0039] In some embodiments of the present application, the limiting groove 113 is arranged at an opening on one side away from the first connecting portion 111, and the clamping head 103 can be clamped into the limiting groove 113 from the opening. While ensuring that the sliding support rod 101 is not easy to rotate after being clamped to the first supporting portion 110, the installation operation of the sliding support rod 101 is very simple.

[0040] In some embodiments of the present application, the first support portion 110 may also be a square tube structure, and the limiting groove 113 is provided in the first support portion 110. The square tube structure makes the support frame 1 itself stronger, and when the user sits on the seat 4, the support frame 3 is not easily bent or broken under pressure.

[0041] In some embodiments of the present application, the limiting groove 113 is a square slot hole opened on the first support part 110, and a second threaded hole 114 is opened at the bottom of the limiting groove 113. The clamping head 103 is a block-shaped protrusion protruding axially from both ends of the sliding support rod 101. The first threaded hole 104 is opened on the clamping head 103. When the clamping head 103 is inserted into the limiting groove 113, the second threaded hole 114 is aligned with the first threaded hole 104.

[0042] In this embodiment, the limiting groove 113 is set as a square slot hole and the clamping head 103 is set as a block-shaped protrusion with a relatively opposite shape, so that after the clamping head 103 is clamped into the limiting groove 113, the clamping head 103 cannot rotate relative to the limiting groove 113, thereby ensuring the connection strength between the sliding support rod 101 and the first support part 110; and after clamping, the second threaded hole 114 on the first support part 110 is opposite to the first threaded hole 104 on the clamping head 103, which is convenient for the user to screw in the screws to fix it.

[0043] In some embodiments of the present application, the upper side of the limit groove 113 is opened, and the clamp head 103 can be clamped into the limit groove 113 from the opening. While ensuring that the sliding support rod 101 is not easy to rotate after being clamped to the first support part 110, the installation operation of the sliding support rod 101 is very simple.

[0044] In some embodiments of the present application, the support frame 1 further includes two second support portions 120 vertically disposed between the two first support portions 110 .

[0045] In this embodiment, by providing the second support portion 120, the overall strength of the support frame 1 is higher and the stability is better; and when the chair legs 5 are connected to the support frame 1, the cross beams on the chair legs 5 can be connected to the support portions on the support frame 1, thereby improving the connection strength between the two.

[0046] This patent is applied to the seat described in the background technology of the applicant and can be combined with it to form a complete seat.

[0047] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means more than three.

[0048] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A mounting structure for a sliding support rod, It is characterized in that The invention comprises a support frame (1), a first support portion (110) symmetrically arranged in front and back of the support frame (1), and a sliding support rod (101) symmetrically arranged between the two first support portions (110), first threaded holes (104) being provided at both ends of the sliding support rod (101), the sliding support rod (101) being clamped between the two first support portions (110), the first threaded hole (104) being configured to be threadedly connected to the first support portion (110), and the sliding support rod (101) and the first threaded hole (104) being threadedly connected to the first support portion (110). A positioning assembly is provided between the first support portion (110), the positioning assembly comprising a clamping head (103) and a limiting groove (113), the clamping head (103) being provided at one of the sliding support rod (101) and the first support portion (110), and the limiting groove (113) being provided at the other of the sliding support rod (101) and the first support portion (110); guided by the positioning assembly, the orientation and posture of the sliding support rod (101) when installed on the first support portion (110) remain unchanged.

2. The installation structure of the sliding support rod according to claim 1, It is characterized in that The first support portion (110) is an angle iron structure, the first support portion (110) comprises a first connecting portion (111) and a first positioning portion (112) perpendicular to the first connecting portion (111), and the limiting groove (113) is provided in the first positioning portion (112).

3. The installation structure of the sliding support rod according to claim 2, It is characterized in that The clamping head (103) is a plate-like protrusion that protrudes axially in two directions from the side wall of the sliding support rod (101). The first positioning portion (112) is provided with a second threaded hole (114), and the second threaded hole (114) is located below the limiting groove (113). When the clamping head (103) is clamped into the limiting groove (113), the second threaded hole (114) is aligned with the first threaded hole (104).

4. The installation structure of the sliding support rod according to claim 2, It is characterized in that The limiting groove (113) is arranged at an opening on one side away from the first connecting portion (111), and the clamping head (103) can be clamped into the limiting groove (113) from the opening.

5. The installation structure of the sliding support rod according to claim 2, It is characterized in that The first supporting portion (110) is a square tube structure, and the limiting groove (113) is provided on the first positioning portion (112).

6. The installation structure of the sliding support rod according to claim 5, It is characterized in that The limiting groove (113) is a square slot hole formed on the first positioning portion (112); a second threaded hole (114) is formed at the bottom of the limiting groove (113); the clamping head (103) is a block-shaped protrusion extending axially from both ends of the sliding support rod (101); the first threaded hole (104) is formed on the clamping head (103); when the clamping head (103) is clamped into the limiting groove (113), the second threaded hole (114) is aligned with the first threaded hole (104).

7. The installation structure of the sliding support rod according to claim 5, It is characterized in that The upper side of the limiting groove (113) is provided with an opening, and the clamping head (103) can be clamped into the limiting groove (113) from the opening.

8. The installation structure of the sliding support rod according to claim 1, It is characterized in that The support frame (1) further comprises two second support parts (120) vertically arranged between the two first support parts (110).

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