Stair railing convenient to install

Abstract

The utility model relates to the technical field of stair railings, in particular to a stair railing convenient to install, which comprises a stand column and a guardrail, fixing plates are fixedly installed on two sides of the stand column, a U-shaped groove is fixedly connected to one side, far away from the stand column, of each fixing plate, and positioning rods are fixedly connected to the top and the bottom of two sides of the guardrail. The positioning rod is inserted into the U-shaped groove, a threaded hole is formed in one side of the U-shaped groove, a through hole is formed in one side of the positioning rod, a clamping plate is inserted into one side of an opening of the U-shaped groove, a hole groove is formed in the clamping plate, and a first bolt is inserted into the hole groove. The guardrail has the advantages that after the U-shaped groove is fixed to the stand column, one person lifts the guardrail, the positioning rods on the two sides of the guardrail are inserted from the opening in one side of the U-shaped groove, the guardrail can be supported through the U-shaped groove, then the clamping plate is installed, only one person is needed in the whole installation process, and therefore the purposes of saving manpower and reducing the installation cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of stair railings, in particular to a stair railing which is easy to install. Background Art

[0002] The stair railing mainly consists of two components: supporting columns and guardrails. When installing the stair railing, you first need to use expansion bolts to fix multiple columns on the stairs at a certain interval, and then fix the guardrail between two adjacent columns.

[0003] There are usually two ways to fix the guardrail on the column. One is to weld the guardrail directly to the column, and the other is to use a positioning sleeve. The positioning sleeve is put on the protruding steel pipes on both sides of the guardrail, and then the positioning sleeve is fixed to the side of the column with bolts to fix the guardrail on the column. In contrast, the welding method requires grinding and other processes, and the installation operation is more complicated. The method of fixing the guardrail with a positioning sleeve is simpler and easier to install. However, the method of fixing the guardrail with a positioning sleeve still has the following defects:

[0004] After the positioning sleeves are put on both sides of the guardrail, one person needs to lift the guardrail and place it between the two posts, and then another person fixes the positioning sleeves by tightening the screws. The installation operation requires at least two people to cooperate, which makes the installation operation more labor-intensive and increases the installation cost. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0006] Therefore, one purpose of the utility model is to provide a stair railing that is easy to install, aiming to solve the problem that the installation of stair railings in the prior art is labor-intensive and has high installation costs.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides an easy-to-install stair railing, including a column and a guardrail, wherein fixing plates are fixedly installed on both sides of the column, and a U-shaped groove is fixedly connected to the side of the fixing plate away from the column, and positioning rods are fixedly connected to the top and bottom of both sides of the guardrail, and the positioning rods are inserted in the U-shaped groove, a threaded hole is opened on one side of the U-shaped groove, a through hole is opened on one side of the positioning rod, a splint is inserted on one side of the U-shaped groove opening, a hole groove is opened on the splint, and a first bolt is inserted inside the hole groove.

[0008] Preferably, any of the above schemes is that a second bolt is inserted into the fixing plate, a nut is threadedly connected to the outer surface of the second bolt, an avoidance groove is provided on the side of the positioning rod away from the guardrail, insertion holes are provided on both sides of the column, and a longitudinal slide groove is provided below the insertion hole, two longitudinal limit plates are fixedly connected to the inner wall of the column, and the spacing between the two limit plates is equal to the width of the nut, and when there is a certain error in the height difference between two adjacent columns, the second bolt can slide up and down in the longitudinal slide groove to compensate for the error, thereby ensuring the smooth installation of the guardrail.

[0009] Preferably, any of the above schemes is that a transverse groove is provided on one side of the fixing plate, and the second bolt is slidably inserted in the transverse groove. When the position of one of the two adjacent columns is offset and is not in the same straight line as the other columns, the error can be compensated by sliding the second bolt in the transverse groove, thereby ensuring the smooth installation of the guardrail.

[0010] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0011] 1. After fixing the U-shaped groove on the column, one person lifts the guardrail and inserts the positioning rods on both sides of the guardrail from the opening on one side of the U-shaped groove. The U-shaped groove can support the guardrail, and then the plywood can be installed. The entire installation process only requires one person, thereby saving manpower and reducing installation costs.

[0012] 2. By setting a longitudinal slide groove, the second bolt can slide up and down in the longitudinal slide groove, and the height of the U-shaped groove can be adjusted to compensate for the height error between the steps and ensure that the guardrail can be installed smoothly.

[0013] 3. By setting a transverse slide groove, the fixing plate can slide on the surface of the second bolt through the transverse slide groove, thereby compensating for the problem of offset of the column installation position and ensuring the smooth installation of the guardrail.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a schematic diagram of the structure according to the utility model;

[0017] Figure 2 It is a structural schematic diagram of a U-shaped groove and a clamping plate according to the utility model;

[0018] Figure 3 It is a structural schematic diagram of the guardrail according to the utility model;

[0019] Figure 4 It is a schematic cross-sectional structure diagram of a column according to the utility model.

[0020] Among them: 1. column, 11. positioning seat, 12. socket, 13. longitudinal slide groove, 14. limit plate, 15. cap, 2. guardrail, 21. positioning rod, 22. through hole, 23. avoidance groove, 3. fixing plate, 31. U-shaped groove, 32. threaded hole, 33. splint, 34. hole groove, 35. first bolt, 36. transverse slide groove, 37. second bolt, 38. nut. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-3 As shown, a stair railing that is easy to install in this embodiment includes a column 1 and a guardrail 2. A fixing plate 3 is fixedly installed on both sides of the column 1. In order to reflect the connection structure between the column 1 and the fixing plate 3, Figure 1 Only the fixing plate 3 on one side of the column 1 is drawn in the figure, and the side of the fixing plate 3 away from the column 1 is fixedly connected with a U-shaped groove 31, and the top and bottom of both sides of the guardrail 2 are fixedly connected with positioning rods 21, and the positioning rods 21 are inserted in the U-shaped groove 31. Since one side of the U-shaped groove 31 is in an open state, the positioning rod 21 can be inserted from one side of the U-shaped groove 31. A threaded hole 32 is provided on one side of the U-shaped groove 31, and a through hole 22 is provided on one side of the positioning rod 21. A clamping plate 33 is inserted on the side of the opening of the U-shaped groove 31, and a hole groove 34 is provided on the clamping plate 33. A first bolt 35 is inserted inside the hole groove 34. The first bolt 35 passes through the hole groove 34 and the through hole 22 and is threadedly connected to the threaded hole 32, so that the clamping plate 33 can be fixed, thereby positioning the positioning rod 21.

[0024] Specifically, a positioning seat 11 is fixedly connected to the bottom of the column 1 for fixing the column 1 on the stairs.

[0025] Example 1: Figure 2-4 As shown, a second bolt 37 is inserted into the fixing plate 3, and a nut 38 is threadedly connected to the outer surface of the second bolt 37. An avoidance groove 23 is provided on the side of the positioning rod 21 away from the guardrail 2. When the positioning rod 21 is inserted into the U-shaped groove 31, the avoidance groove 23 can avoid the head of the second bolt 37, thereby preventing the second bolt 37 from affecting the insertion of the positioning rod 21 into the U-shaped groove 31. Plug holes 12 are provided on both sides of the column 1, and a longitudinal slide groove 13 is provided below the plug hole 12. The nut 38 is inserted into the interior of the column 1 through the plug hole 12, and the second bolt 37 can slide up and down in the longitudinal slide groove 13.

[0026] Specifically, two longitudinal limit plates 14 are fixedly connected to the inner wall of the column 1. The two limit plates 14 can improve the strength of the column 1, and the spacing between the two limit plates 14 is equal to the width of the nut 38. After the nut 38 is inserted into the interior of the column 1, the two limit plates 14 limit the nut 38 to prevent it from rotating, so that when the second bolt 37 is rotated, the nut 38 will not rotate with it.

[0027] Preferably, Figure 2 As shown, a transverse groove 36 is provided on one side of the fixing plate 3, and the second bolt 37 is slidably inserted in the transverse groove 36. When one of the columns 1 is installed with a small offset and is not in the same straight line as the other columns 1, the fixing plate 3 can slide on the surface of the second bolt 37 through the transverse groove 36 to compensate for the error.

[0028] Furthermore, a sealing cap 15 is fixedly connected to the top of the column 1 to seal the top of the column 1 and prevent foreign objects from entering the column 1.

[0029] The working principle of the utility model is as follows: when in use, a hole is punched on the staircase, and then the column 1 is fixed to the staircase by using an expansion bolt through the positioning seat 11, and then the second bolt 37 is inserted into the transverse slide groove 36, and the nut 37 is threaded on the surface of the second bolt 37, and then the nut 37 is inserted into the interior of the column 1 through the insertion hole 12, and the second bolt 37 is slid downward to the interior of the longitudinal slide groove 13, and after measurement, the specific position where the U-shaped groove 31 needs to be fixed is determined, and then the second bolt 37 is slid in the longitudinal slide groove 13, and the fixing plate 3 is inserted into the transverse slide groove. 36 slides on the surface of the second bolt 37, thereby adjusting the U-shaped groove 31 to the specific position of measurement, and then tightening the second bolt 37 to fix the fixing plate 3 on the column 1, lift the guardrail 2, and insert the positioning rods 21 on both sides of the guardrail 2 from the opening on one side of the U-shaped groove 31, so that the U-shaped groove 31 can support the guardrail 2. At this time, the guardrail 2 can be loosened, and then the clamping plate 33 is inserted into the opening of the U-shaped groove 31, and finally the first bolt 35 is inserted into the hole groove 34, and penetrates the through hole 22 and is threadedly connected with the threaded hole 32, so that the guardrail 2 is fixed on the column 1.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. By setting the U-shaped groove 31, after the U-shaped groove 31 is fixed on the column 1, when the guardrail 2 is fixed on the column 1, one person lifts the guardrail 2 and inserts the positioning rods 21 on both sides of the guardrail 2 from the opening on one side of the U-shaped groove 31. The U-shaped groove 31 can support the guardrail 2. At this time, the guardrail 2 can be loosened and the guardrail 2 will not fall. Finally, the clamping plate 33 can be installed. The entire installation process only requires one person, thereby saving manpower and reducing installation costs.

[0032] 2. Since there may be a small error in the height of each step of the stairs, there may be a certain error in the height difference between adjacent columns 1 after the column 1 is installed on the stairs. The present application sets a longitudinal slide groove 13 so that the second bolt 37 slides up and down in the longitudinal slide groove 13, and the height of the U-shaped groove 31 can be adjusted, thereby compensating for the height error between the steps and ensuring that the guardrail 2 can be installed smoothly.

[0033] 3. When installing the column 1, the installation position of a certain column 1 may be offset due to inaccurate drilling position on the stairs, and it may not be in the same straight line with other columns 1. The present application sets a transverse slide groove 36 so that the fixing plate 3 can slide on the surface of the second bolt 37 through the transverse slide groove 36, thereby compensating for the problem of offset of the installation position of the column 1 and ensuring the smooth installation of the guardrail 2.

Claims

1. A stair railing that is easy to install, characterized in that: The invention comprises a column (1) and a guardrail (2), wherein a fixing plate (3) is fixedly installed on both sides of the column (1), and a U-shaped groove (31) is fixedly connected to the side of the fixing plate (3) away from the column (1), and a positioning rod (21) is fixedly connected to the top and bottom of both sides of the guardrail (2), and the positioning rod (21) is inserted into the U-shaped groove (31), and a threaded hole (32) is opened on one side of the U-shaped groove (31), and a through hole (22) is opened on one side of the positioning rod (21), and a clamping plate (33) is inserted on the opening side of the U-shaped groove (31), and a hole groove (34) is opened on the clamping plate (33), and a first bolt (35) is inserted into the inside of the hole groove (34).

2. The easy-to-install stair railing according to claim 1, characterized in that: A positioning seat (11) is fixedly connected to the bottom of the column (1).

3. The easy-to-install stair railing according to claim 1, characterized in that: A second bolt (37) is inserted into the fixing plate (3), a nut (38) is threadedly connected to the outer surface of the second bolt (37), and an avoidance groove (23) is provided on the side of the positioning rod (21) away from the guardrail (2).

4. The easy-to-install stair railing according to claim 3, characterized in that: A transverse sliding groove (36) is provided on one side of the fixing plate (3), and the second bolt (37) is slidably inserted in the transverse sliding groove (36).

5. The easy-to-install stair railing according to any one of claims 3-4, characterized in that: Insertion holes (12) are provided on both sides of the upright column (1), and a longitudinal sliding groove (13) is provided below the insertion hole (12).

6. The easy-to-install stair railing according to claim 5, characterized in that: Two longitudinal limiting plates (14) are fixedly connected to the inner wall of the column (1), and the distance between the two limiting plates (14) is equal to the width of the nut (38).

7. The easy-to-install stair railing according to claim 6, characterized in that: A sealing cap (15) is fixedly connected to the top of the column (1).

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