Safety guardrail convenient to install

Abstract

The safety guardrail convenient to install comprises a first stand column and a second stand column, one side of the first stand column is fixedly connected with three first cross bars, the interiors of the first cross bars are connected with second cross bars in a sliding mode, and the outer ends of the second cross bars are fixedly connected with the second stand column; a mounting cavity is formed in the second cross bar, two limiting sliding rods are symmetrically fixed in the mounting cavity, and a sliding plate is slidably mounted on the limiting sliding rods; one side of the sliding plate is fixedly connected with a lead screw, the lead screw is sleeved with a rotating block, and axial movement of the rotating block is converted into linear movement of the lead screw and the sliding plate; the other side of the sliding plate is fixedly connected with a sharp clamping block, the outer end of the sharp clamping block protrudes out of the side wall of the second transverse bar, a first clamping groove matched with the sharp clamping block is formed in the first transverse bar, and the sharp clamping block and the first clamping groove are fixed in an abutting mode. The telescopic joint of the guardrail is convenient to unlock and fix and good in joint connection stability, and installation of the guardrail is greatly facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a safety guardrail that is easy to install. Background Art

[0002] The meanings of civil engineering and building construction are different. Building construction is a series of land infrastructure construction for building buildings, while civil engineering is the construction and maintenance of a series of infrastructure related to water, soil and culture. In building construction, guardrails are needed to limit the construction location, but the connections between existing safety guardrails are installed and fixed by multiple bolts, which makes the horizontal installation and splicing cumbersome. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a safety guardrail that is easy to install, so as to solve the problem that the connection between the existing safety guardrails proposed in the above background technology is installed and fixed by multiple bolts, and the method of horizontal installation and splicing is cumbersome.

[0004] The utility model solves the above problems and adopts the following technical solutions:

[0005] A safety guardrail that is easy to install comprises a No. 1 column, a No. 2 column and a plurality of horizontal bars in the middle, one side of the No. 1 column is fixedly connected with three No. 1 horizontal bars, the interior of the No. 1 horizontal bar is slidably connected with the No. 2 horizontal bar, and the outer end of the No. 2 horizontal bar is fixedly connected with the No. 2 column; an installation cavity is provided inside the No. 2 horizontal bar, two limit slide bars are symmetrically fixed in the installation cavity, and a sliding plate is slidably installed on the limit slide bars; one side of the sliding plate is fixedly connected with a screw rod, a rotating block is mounted on the screw rod, and the axial movement of the rotating block is converted into the linear movement of the screw rod and the sliding plate; the other side of the sliding plate is fixedly connected with a pointed card block, the outer end of the pointed card block protrudes from the side wall of the No. 2 horizontal bar, the interior of the No. 1 horizontal bar is provided with a No. 1 card groove that cooperates with the pointed card block, and the pointed card block is pressed and fixed with the No. 1 card groove.

[0006] Compared with the prior art, the utility model adopting the above structure has the following beneficial effects:

[0007] The guardrail telescopic node provided by the utility model is easy to unlock and fix, and the node connection stability is good, which greatly facilitates the installation of the guardrail.

[0008] As a preferred embodiment, a further technical solution of the above structure is:

[0009] The screw rod is arranged between the two limit sliding rods; when the sliding plate is driven to move at this position, the sliding plate moves in a balanced manner.

[0010] The screw rod is arranged at one end of the sliding plate close to the second column; this position is close to the operator, so as to avoid the operator moving the position many times and facilitate the installation and adjustment of the guardrail.

[0011] The surfaces of the pointed clamp block and the No. 1 clamp slot are both serrated, and the pointed clamp block engages with the serrations on the surface of the No. 1 clamp slot; this embodiment makes the connection node strength between the No. 1 horizontal rail and the No. 2 horizontal rail higher and the connection more stable.

[0012] The end of the No. 2 horizontal rail extending into the No. 1 horizontal rail is fixedly connected to the limiting slide plate, and a limiting slide groove is arranged inside the No. 1 horizontal rail corresponding to the limiting slide plate, and the end of the limiting slide groove ends at the end adjacent to the No. 1 horizontal rail; this embodiment prevents the No. 2 horizontal rail from exceeding the limit displacement when stretching outward, causing it to fall out of the No. 1 horizontal rail.

[0013] The rotating block consists of an internal thread sleeve and a twisting block. The internal thread sleeve is mounted on the screw rod. The internal thread sleeve passes through the side wall of the second horizontal bar and rotates with the second horizontal bar. The outer end of the internal thread sleeve is fixedly connected to the twisting block. This example has a simple structure and is easy to make.

[0014] An installation box is fixedly connected to the outer side of the No. 1 column, and an installation groove is opened at the outer end of the installation box. An installation block is fixedly connected to the outer side of the No. 2 column at the same horizontal position as the installation groove, and the installation block is inserted into the installation box; this embodiment further facilitates the assembly of the guardrail, and the guardrail can be connected to other guardrails by directly pushing it.

[0015] A second card slot is provided on the top of the mounting block, and an elastic card is provided inside the upper side wall of the mounting box; in this example, the elastic card automatically locks the mounting block to achieve automatic fastening of the guardrail splicing point.

[0016] A No. 2 card slot is provided on the top of the mounting block, a threaded hole is provided on the upper side wall of the mounting box, a fixing bolt is installed in the threaded hole, a No. 1 card block is provided at the lower end of the fixing bolt, and the No. 1 card block corresponds to the No. 2 card slot; this embodiment has a long service life.

[0017] The elastic clamp includes a bevel clamp block, a pull rod, a pull block and a spring. A groove is provided on the inner wall of the installation box, and a bevel clamp block is provided in the groove. The top of the bevel clamp block is fixedly connected to the pull rod. The upper end of the pull rod protrudes out of the top wall of the groove and the outer end extending out of the top wall of the groove is fixedly connected to the pull block. A spring is provided between the top surface of the bevel clamp block and the top wall of the groove, and the spring is mounted on the pull rod. This example specifically shows the automatic clamping of the elastic clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 For this utility model Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 For this utility model Figure 1 Enlarged view of center C.

[0022] In the figure: 1. No. 1 column; 2. No. 1 horizontal bar; 3. No. 2 horizontal bar; 4. Limiting slide plate; 5. Limiting slide groove; 6. No. 2 column; 7. Elastic clamp; 71. Bevel clamp block; 72. Pull rod; 73. Pull block; 74. Spring; 8. Sliding plate; 9. Limiting slide rod; 10. Screw rod; 11. Rotating block; 12. Pointed clamp block; 13. No. 1 clamp groove; 14. Mounting box; 15. Mounting groove; 16. Mounting block; 17. No. 2 clamp groove; 18. Fixing bolt; 19. No. 1 clamp block; 20. Recess. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0024] See attached Figure 1 A safety guardrail comprises a first column 1 and a second column 6 on both sides and a plurality of horizontal bars in the middle, wherein the horizontal bars can be designed as a telescopic structure.

[0025] Embodiment 1 of the present utility model:

[0026] See also Figure 2 One side of the No. 1 column 1 is fixedly connected with three No. 1 horizontal bars 2, the interior of the No. 1 horizontal bar 2 is slidably connected to the No. 2 horizontal bar 3, the outer end of the No. 2 horizontal bar 3 is fixedly connected to the No. 2 column 6, the interior of the No. 2 horizontal bar 3 is provided with an installation cavity, and two limit slide rods 9 are symmetrically fixed in the installation cavity, and a sliding plate 8 is slidably installed on the limit slide rod 9; one side of the sliding plate 8 is fixedly connected with a screw rod 10, and a rotating block 11 is mounted on the screw rod 10, and the axial movement of the rotating block 11 is converted into the linear movement of the screw rod 10 and the sliding plate 8; the other side of the sliding plate 8 is fixedly connected with a pointed card block 12, and the outer end of the pointed card block 12 protrudes from the side wall of the No. 2 horizontal bar 3, and the interior of the No. 1 horizontal bar 2 is provided with a No. 1 card groove 13 that cooperates with the pointed card block 12, and the pointed card block 12 is pressed and fixed with the No. 1 card groove 13.

[0027] As an option, the rotating block 11 is composed of an internal threaded sleeve and a twisting block. The internal threaded sleeve is sleeved on the screw rod 10. The internal threaded sleeve passes through the side wall of the second horizontal rail 3 and rotates with the second horizontal rail 3. The outer end of the internal threaded sleeve is fixedly connected to the twisting block.

[0028] When the screw rod 10 is set between the two limit slide bars 9, the sliding plate 8 is better balanced when it drives the sliding plate 8 to move up and down; when the screw rod 10 is set at one end of the sliding plate 8 close to the second column 6, the rotating block 11 is also located at the end of the second horizontal rail 3 close to the second column 6, which makes it more convenient for the user to adjust the length of the railing. In other words, the user can adjust the tightness of the connection node between the No. 1 horizontal rail 2 and the No. 2 horizontal rail 3 by standing at the No. 2 column 6. Compared with the prior art, in which a locking structure is set at the connection node of the telescopic rod, the utility model adjusts the control point position so that the user does not need to move the position multiple times, and a one-time operation is achieved.

[0029] Adjust the sliding plate 8 to rise, retract the pointed block 12, and then pull the second column 6 outward to adjust the length of the guardrail. The user does not need to go to other positions of the guardrail. The length of the guardrail can be locked by rotating the rotating block 11 in the opposite direction at the second column 6.

[0030] The surfaces of the pointed block 12 and the No. 1 slot 13 are both serrated, and the serrations on the surface of the pointed block 12 and the No. 1 slot 13 mesh with each other. The serration structure makes the relative position of the No. 1 horizontal rail 2 and the No. 2 horizontal rail 3 locked more firmly to prevent shrinkage and deformation under lateral pressure.

[0031] In the above structure, the positions of the rotating block 11, the sharp block 12, and the limiting slide plate 4 are not limited to Figure 2 The upper and lower positions shown are for simplification of the description. Figure 2 As shown, the sliding plate 8 of the utility model is constrained by the left and right limit slide bars 9 and will only move up and down along the limit slide bars 9 when kept horizontal; the screw rod 10 can drive the sliding plate 8 to rise or fall as a whole when it is in any position of the sliding plate 8; when the sliding plate 8 rises, the pointed clamping block 12 retracts into the second horizontal bar 3, at which time the second horizontal bar 3 is in an active state relative to the first horizontal bar 2, and can be stretched outward or pushed inward; when the sliding plate 8 descends, the pointed clamping block 12 extends out of the second horizontal bar 3 to engage with the first clamping groove 13, at which time the second horizontal bar 3 and the first horizontal bar 2 are in a locked state.

[0032] Optionally, the end of the second horizontal rail 3 extending into the first horizontal rail 2 is fixedly connected to the limiting slide 4, and a limiting slide groove 5 is provided inside the first horizontal rail 2 corresponding to the limiting slide groove 4, and the end of the limiting slide groove 5 ends at the end adjacent to the first horizontal rail 2, for example, at a position 20cm-30cm away from the end of the first horizontal rail 2, thereby ensuring that the second horizontal rail 3 and the first horizontal rail 2 have at least a 20cm-30cm overlapping length. When the second horizontal rail 3 moves outward, the limiting slide 4 slides along the limiting slide groove 5, and is stopped when the limiting slide 4 reaches the outer end of the limiting slide groove 5, indicating that the second horizontal rail 3 moves to the maximum position, and this structure prevents the second horizontal rail 3 from falling out.

[0033] As an improved embodiment of the utility model, it is intended to further facilitate the assembly of the railing panels in the guardrail. An installation box 14 is fixedly connected to the outer side of the No. 1 column 1, and an installation groove 15 is opened at the outer end of the installation box 14. An installation block 16 is fixedly connected to the outer side of the No. 2 column 6 at the same horizontal position as the installation groove 15, and the installation block 16 is inserted into the installation box 14.

[0034] The utility model provides two fixing structures of the mounting box 14 and the mounting block 16: Example 1: See Figure 3 A second card slot 17 is provided on the top of the mounting block 16, and an elastic card member 7 is provided inside the upper side wall of the mounting box 14. The elastic card member 7 is automatically retracted into the side wall of the mounting box 14 by the end of the mounting block 16, and automatically protrudes into the second card slot 17 when the second card slot 17 moves to the lower side thereof; Example 2: See Figure 4 A No. 2 card slot 17 is provided on the top of the mounting block 16, a threaded hole is provided on the upper side wall of the mounting box 14, a fixing bolt 18 is installed in the threaded hole, and a No. 1 card block 19 is provided at the lower end of the fixing bolt 18, and the No. 1 card block 19 corresponds to the No. 2 card slot 17.

[0035] The first example above makes it easier to assemble the guardrail. The user stands at the position of the second column 6 and pushes the guardrail as a whole, so that the first column 1 can be automatically fixed when it is docked with the second column 6 of the previous guardrail. However, since the elastic clamp 7 is relatively fragile, such as the internal metal parts are prone to rust and the rigid parts are prone to breakage, the elastic clamp 7 is easily damaged; while the second example requires manual rotation of the fixing bolt 18 to raise and lower the first clamp block 19, but its service life is long. Therefore, the above two examples can be selected and adopted, or two upper and lower installation boxes 14 can be set on the outer side of the first column 1, and the above two examples can be adopted respectively.

[0036] As an option, the elastic clamp 7 includes a bevel clamping block 71, a pull rod 72, a pull block 73 and a spring 74. A groove 20 is provided on the inner wall of the installation box 14, and a bevel clamping block 71 is provided in the groove 20. The top of the bevel clamping block 71 is fixedly connected to the pull rod 72. The upper end of the pull rod 72 protrudes out of the top wall of the groove 20 and the outer end extending out of the top wall of the groove 20 is fixedly connected to the pull block 73. A spring 74 is provided between the top surface of the bevel clamping block 71 and the top wall of the groove 20, and the spring 74 is sleeved on the pull rod 72; when the installation block 16 is inserted, it pushes one side of the bevel clamping block 71, and the bevel clamping block 71 moves upward and presses the spring 74. When the second clamping slot 17 reaches the bottom of the bevel clamping block 71, the spring 74 resets and drives the bevel clamping block 71 to reset, and the bevel clamping block 71 enters the second clamping slot 17 to pre-tighten the structure.

[0037] The operation process of the utility model is as follows:

[0038] 1) Align the mounting block 16 with the mounting groove 15 on one side of the mounting box 14, and the mounting block 16 enters the mounting groove 15. The mounting block 16 pushes the inclined surface of one side of the bevel block 71, and the bevel block 71 moves upward and presses the spring 74. When the second slot 17 reaches the bottom of the bevel block 71, the spring 74 is reset for pre-tightening.

[0039] 2) The fixing bolt 18 in the other installation box 14 is rotated, and the fixing bolt 18 drives the first clamping block 19 to enter the second clamping groove 17, thereby completing the fixed connection between the upper and lower points, and the assembly of the two guardrails is completed.

[0040] 3) Rotate the rotating block 11, the rotating block 11 drives the screw rod 10 to move upward, the screw rod 10 drives the sliding plate 8 and the pointed card block 12 to move upward, after the pointed card block 12 leaves the No. 1 card slot 13, the total length of the No. 2 horizontal rail 3 and the No. 1 horizontal rail 2 can be adjusted, after the No. 2 horizontal rail 3 is pulled out to the required length, rotate the rotating block 11 in the opposite direction, the sliding plate 8 and the pointed card block 12 move downward, so that the No. 2 horizontal rail 3 and the No. 1 horizontal rail 2 are fixed.

[0041] The beneficial effects of the utility model are as follows: 1) through the design of the sliding plate and its mounting structure, the pointed block can be extended by pushing the sliding plate at any point, thereby achieving the effect of locking the length and facilitating the length adjustment of the guardrail; 2) a serrated bite structure is adopted inside the No. 1 horizontal rail and the No. 2 horizontal rail, so that the node strength is greater; 3) through the design of the mounting groove, the guardrail is more convenient to assemble.

[0042] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A safety guardrail that is easy to install, comprising a first column (1) and a second column (6) located on both sides, characterized in that: One side of the first column (1) is fixedly connected to the first horizontal bar (2), the interior of the first horizontal bar (2) is slidably connected to the second horizontal bar (3), and the outer end of the second horizontal bar (3) is fixedly connected to the second column (6); The second horizontal bar (3) is provided with an installation cavity inside, and two limit slide bars (9) are symmetrically fixed in the installation cavity, and a sliding plate (8) is slidably mounted on the limit slide bars (9); A screw rod (10) is fixedly connected to one side of the sliding plate (8), a rotating block (11) is mounted on the screw rod (10), and the axial movement of the rotating block (11) is converted into the linear movement of the screw rod (10) and the sliding plate (8); A pointed card block (12) is fixedly connected to the other side of the sliding plate (8), the outer end of the pointed card block (12) protrudes from the side wall of the second horizontal rail (3), and a first card slot (13) matching with the pointed card block (12) is provided inside the first horizontal rail (2), and the pointed card block (12) and the first card slot (13) are pressed and fixed.

2. The easy-to-install safety guardrail according to claim 1, characterized in that: The screw rod (10) is arranged between the two limit sliding rods (9).

3. The easy-to-install safety guardrail according to claim 1 is characterized in that: The screw rod (10) is arranged at one end of the sliding plate (8) close to the second column (6).

4. The easy-to-install safety guardrail according to claim 1 is characterized in that: The surfaces of the pointed clamping block (12) and the first clamping slot (13) are both serrated, and the serrations on the surfaces of the pointed clamping block (12) and the first clamping slot (13) are engaged with each other.

5. The easy-to-install safety guardrail according to claim 1 is characterized in that: The end of the second horizontal bar (3) extending into the first horizontal bar (2) is fixedly connected to the limiting slide plate (4), and a limiting slide groove (5) is provided inside the first horizontal bar (2) corresponding to the limiting slide plate (4), and the end of the limiting slide groove (5) ends at the end adjacent to the first horizontal bar (2).

6. The easy-to-install safety guardrail according to claim 1, characterized in that: The rotating block (11) is composed of an internal thread sleeve and a screw block. The internal thread sleeve is sleeved on the screw rod (10). The internal thread sleeve passes through the side wall of the second horizontal bar (3) and is rotatably matched with the second horizontal bar (3). The outer end of the internal thread sleeve is fixedly connected to the screw block.

7. The easy-to-install safety guardrail according to claim 1, characterized in that: The outer side of the first column (1) is fixedly connected with a mounting box (14), and a mounting groove (15) is provided at the outer end of the mounting box (14). The outer side of the second column (6) is fixedly connected with a mounting block (16) at the same horizontal position as the mounting groove (15), and the mounting block (16) is inserted into the mounting box (14).

8. The easy-to-install safety guardrail according to claim 1, characterized in that: A second card slot (17) is provided on the top of the installation block (16), and an elastic card member (7) is provided inside the upper side wall of the installation box (14).

9. The easy-to-install safety guardrail according to claim 1, characterized in that: A second card slot (17) is provided on the top of the mounting block (16), a threaded hole is provided on the upper side wall of the mounting box (14), a fixing bolt (18) is installed in the threaded hole, a first card block (19) is provided at the lower end of the fixing bolt (18), and the first card block (19) is matched with the second card slot (17).

10. The easy-to-install safety guardrail according to claim 8, characterized in that: The elastic clamp (7) comprises a bevel clamp (71), a pull rod (72), a pull block (73) and a spring (74). A groove (20) is provided on the inner wall of the installation box (14). The bevel clamp (71) is provided in the groove (20). The top of the bevel clamp (71) is fixedly connected to the pull rod (72). The upper end of the pull rod (72) protrudes out of the top wall of the groove (20) and the outer end extending out of the top wall of the groove (20) is fixedly connected to the pull block (73). A spring (74) is provided between the top surface of the bevel clamp (71) and the top wall of the groove (20). The spring (74) is sleeved on the pull rod (72).

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