Portable safety engineering ladder

Abstract

The utility model relates to the field of engineering ladders, in particular to a portable safety engineering ladder. The side end of the extension ladder is rotationally connected with an auxiliary supporting frame; the lateral supporting mechanism used for improving the side face supporting effect of the extension ladder and the auxiliary supporting frame is arranged on one side of the extension ladder, the extension ladder extends out, the climbing length can be increased, then the supporting length is prolonged through the unlocking and fixing assembly, and then the extension ladder and the auxiliary supporting frame are connected through the connecting assembly. At the moment, the auxiliary supporting frame cannot move backwards, the extension ladder and the auxiliary supporting frame form a triangle to stably support the lower side, and at the moment, the lateral supporting effect of the extension ladder can be improved by pulling out the lateral supporting mechanism.

Description

Technical Field

[0001] The utility model relates to the field of engineering ladders, in particular to a portable safety engineering ladder. Background Art

[0002] An engineering ladder is a ladder designed specifically for engineering projects. Its structure and function are optimized for the needs of engineering operations. Modern engineering ladders are of various types, with variable structures, adjustable heights, and variable shapes to adapt to various complex engineering environments;

[0003] After searching, a Chinese patent discloses a portable safety engineering ladder (publication number CN 219887952U). This patent technology can store the engineering ladder through the coordinated use of springs, pull rods and other structures, and then can adapt to different transportation equipment, so that the transportation flexibility is higher. Through the coordinated use of threaded rods, threaded sleeves and other structures, the ladder as a whole is relatively stable, so that workers will not shake when climbing, and the climbing safety is higher. However, in the technical solution of the above patent document, due to the high height, the ladder is prone to lateral tilt, and the auxiliary support frame is difficult to effectively support the lower side of the device when under pressure, and it is easy to slide backward.

[0004] Therefore, a portable safety engineering ladder is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a portable safety engineering ladder in order to solve the above-mentioned problems, thereby improving the problem that the ladder is prone to lateral tilt due to its high height, and the auxiliary support frame is difficult to effectively support the lower side of the device when under pressure, and is prone to sliding backward.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions, a portable safety engineering ladder, comprising: a telescopic ladder, the side end of the telescopic ladder is rotatably connected to an auxiliary support frame; a lateral support mechanism, the lateral support mechanism is arranged on one side of the telescopic ladder for increasing the lateral support effect of the telescopic ladder and the auxiliary support frame; a triangular support mechanism is arranged on one side of the lateral support mechanism for connecting the telescopic ladder and the auxiliary support frame, and the triangular support mechanism is arranged on one side of the lateral support mechanism for increasing the bearing capacity and placement stability of the auxiliary support frame; wherein the triangular support mechanism is arranged in two groups, each group of the triangular support mechanism includes a connecting component arranged on one side of the lateral support mechanism, and a fixing component is arranged on one side of the connecting component.

[0007] Preferably, the lateral support mechanism includes through holes opened at the side ends of the telescopic ladder and the auxiliary support frame, and the inner walls of the two through holes are slidably connected to two sliding rods, and the side ends of multiple sliding rods are rotatably connected to lower support blocks. The lateral support mechanism can support both sides of the telescopic ladder and the auxiliary support frame, increase the lateral supporting force, and prevent the device from tipping when placed.

[0008] Preferably, the lateral support mechanism also includes two limit holes opened on the side ends of the telescopic ladder, and the inner walls of the two limit holes are slidably connected to limit blocks. The two limit blocks are respectively fixedly connected to the two lower support blocks. The pulling distance of the lower support blocks can be limited by the limit blocks to prevent the lower support blocks from being over-pulled and causing detachment and damage.

[0009] Preferably, the connecting assembly includes an articulated block and a connecting seat which are respectively movably hinged to the proximal ends of the two lower support blocks. The side end of the connecting seat is detachably connected to a connecting square tube. The side end of the articulated block is fixedly connected to a connecting strip. The connecting strip is slidably connected to the inner wall of the connecting square tube. The lower support blocks can be connected through the connecting assembly, which is convenient for pulling the lower support blocks out.

[0010] Preferably, a "T"-shaped block is fixedly connected to the side end of the connecting square tube, and the "T"-shaped block is slidably connected to the inner wall of the connecting seat. The connection of the connecting component can be disassembled through the "T"-shaped block, which facilitates the compression of the auxiliary support frame and folding for storage.

[0011] Preferably, the fixing component includes a fixing groove opened at the upper end of the connecting strip, the upper end of the connecting square tube is fixedly connected to a mounting seat, the surface of the mounting seat is fixedly connected to a spring, the lower end of the spring is fixedly connected to a fixing block, the fixing block is fitted against the inner wall of the fixing groove, the fixing groove and the fixing groove are both right-angled triangles and one of the right-angled sides is perpendicular to the upper end of the connecting strip, the fixing component can be used to limit the length of the connecting square tube extending from the connecting strip, and the lower side of the auxiliary support frame is connected to form a triangle, thereby increasing the placement stability.

[0012] Preferably, a pull rod is fixedly connected to the upper end of the fixed block, and the pull rod slides through the upper end of the mounting seat and extends. The spring is sleeved on the circumferential surface of the pull rod. The fixed assembly can be pulled and unlocked by the pull rod. At the same time, the pull rod can support the spring to prevent the spring from being damaged due to lateral elastic deformation.

[0013] The beneficial effects of the utility model are:

[0014] 1. Extend the telescopic ladder to increase the climbing length, then unlock the fixing assembly to extend the support length, and then connect the telescopic ladder and the auxiliary support frame through the connecting assembly. At this time, the auxiliary support frame will not move backwards. The telescopic ladder and the auxiliary support frame form a triangle to provide stable support for the lower side. At this time, the lateral support mechanism can be pulled out to increase the lateral support effect of the telescopic ladder;

[0015] 2. The fixed component can be pulled and unlocked by the pull rod. At the same time, the pull rod can support the spring to prevent the spring from being damaged due to lateral elastic deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a main perspective view of the utility model;

[0017] Figure 2 This is a cutaway stereogram of the utility model from a first viewing angle;

[0018] Figure 3 For the utility model Figure 2 A magnified view of middle;

[0019] Figure 4 For the utility model Figure 2 Enlarged view of B.

[0020] In the figure: 1. telescopic ladder; 2. auxiliary support frame; 3. lateral support mechanism; 301. through hole; 302. slide bar; 303. lower support block; 304. limit hole; 305. limit block; 4. triangular support mechanism; 401. connecting assembly; 4011. connecting seat; 4012. hinge block; 4013. connecting square tube; 4014. connecting strip; 4015. "T" shaped block; 402. fixing assembly; 4021. mounting seat; 4022. spring; 4023. fixing groove; 4024. fixing block; 4025. pull rod. DETAILED DESCRIPTION

[0021] 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.

[0022] When implementing: Figure 1-4As shown, a portable safety engineering ladder comprises: a telescopic ladder 1, wherein the side end of the telescopic ladder 1 is rotatably connected to an auxiliary support frame 2; a lateral support mechanism 3, wherein the lateral support mechanism 3 is arranged on one side of the telescopic ladder 1 for increasing the lateral support effect of the telescopic ladder 1 and the auxiliary support frame 2; a triangular support mechanism 4, wherein the triangular support mechanism 4 is arranged on one side of the lateral support mechanism 3 for connecting the telescopic ladder 1 and the auxiliary support frame 2 and increasing the bearing capacity and placement stability of the auxiliary support frame 2; wherein the triangular support mechanism 4 is arranged in two groups, and each group of the triangular support mechanism 4 comprises a connecting assembly 401 arranged on one side of the lateral support mechanism 3, and the connecting assembly 401 A fixing component 402 is provided on one side. When the present device is used, the telescopic ladder 1 is extended to increase its length, and then the fixing component 402 is unlocked to extend the support length, and then the telescopic ladder 1 and the auxiliary support frame 2 are connected through the connecting component 401. At this time, the auxiliary support frame 2 will not move backward, and the telescopic ladder 1 and the auxiliary support frame 2 form a triangle to provide stable support for the lower side. At this time, the lateral support effect of the telescopic ladder 1 can be increased by pulling out the lateral support mechanism 3. The telescopic ladder 1 includes two ladders that can be folded and slid out and a fixing device. Since the structure is the same as the first and second ladders and the fixing device in the comparative document, no further elaboration is given here.

[0023] like Figure 3 As shown, the lateral support mechanism 3 includes a through hole 301 opened at the side ends of the telescopic ladder 1 and the auxiliary support frame 2, and the inner walls of the two through holes 301 are slidably connected to two sliding bars 302, and the side ends of multiple sliding bars 302 are rotatably connected to the lower support blocks 303. When the device is used, the lower support blocks 303 can be pulled out, so that the sliding bars 302 slide out from the through holes 301, and the sliding bars 302 support the lower support blocks 303. The lower support blocks 303 are rotatably connected and can better fit the ground, increase the contact friction, and place them more stably. The lateral support mechanism 3 also includes two limiting holes 304 opened at the side ends of the telescopic ladder 1, and the inner walls of the two limiting holes 304 are slidably connected to limiting blocks 305. The two limiting blocks 305 are respectively fixedly connected to the two lower support blocks 303, and the pulling-out length of the sliding bars 302 can be limited by the limiting blocks 305, so that the sliding bars 302 will not be pulled out excessively and cause detachment and damage.

[0024] like Figure 2 and Figure 4As shown, the fixing assembly 402 includes a fixing groove 4023 opened at the upper end of the connecting strip 4014, the upper end of the connecting square tube 4013 is fixedly connected to a mounting seat 4021, a spring 4022 is fixedly connected to the surface of the mounting seat 4021, and a fixing block 4024 is fixedly connected to the lower end of the spring 4022, and the fixing block 4024 is fitted against the inner wall of the fixing groove 4023, and the fixing groove 4023 and the fixing groove 4023 are both right-angled triangles and one of the right-angled sides is perpendicular to the upper end of the connecting strip 4014. When the auxiliary support frame 2 assists in supporting the lower part of the telescopic ladder 1, the auxiliary support frame 2 is easy to slide and loses its supporting force. The sliding will drive the connecting square tube 4013 to slide on the surface of the connecting strip 4014. At this time, the spring 4022 pushes the fixing block 4024 in the fixing groove 4023, and the fixing block 4024 abuts against the right-angled edge of the fixing groove 4023 to prevent the connecting strip 4014 from sliding. At this time, the connecting strip 4014 cannot be separated from the connecting square tube 4013, and the auxiliary support frame 2 is fixed and cannot be pulled. The connecting component 401 includes an articulated block 4012 and a connecting seat 4011 that are respectively movably hinged to the near ends of the two lower support blocks 303. The side end of the connecting seat 4011 is detachably connected to the connecting square tube 4013, and the side end of the articulated block 4012 is fixedly connected to the connecting strip 4014, the connecting strip 4014 is slidably connected to the inner wall of the connecting square tube 4013. When the connecting strip 4014 and the connecting square tube 4013 cannot be pulled off, the connecting square tube 4013 and the connecting strip 4014 form a whole, and the auxiliary support frame 2, the telescopic ladder 1 and the connecting component 401 form a complete triangle to stably support the lower side of the device. The side end of the connecting square tube 4013 is fixedly connected with a "T"-shaped block 4015, and the "T"-shaped block 4015 is slidably connected to the inner wall of the connecting seat 4011. The "T"-shaped block 4015 can be easily disassembled from the connecting square tube 4013 and the connecting seat 4011, and it is also convenient to pull the fixing component 402 The adjustment distance is that the size of the "T"-shaped block 4015 is larger than the inner wall of the connecting seat 4011, and there is a gap at the sliding connection between the "T"-shaped block 4015 and the connecting seat 4011, which is convenient for the "T"-shaped block 4015 to enter the connecting seat 4011 for installation. The upper end of the fixed block 4024 is fixedly connected with a pull rod 4025, and the pull rod 4025 slides through the upper end of the mounting seat 4021 and extends. The spring 4022 is sleeved on the circumferential surface of the pull rod 4025. The fixed block 4024 can be pulled out of the fixed groove 4023 through the pull rod 4025. At this time, the distance between the connecting square tube 4013 and the connecting strip 4014 can be freely pulled, which is convenient for adjustment.

[0025] When the utility model is in use, when using the device, the telescopic ladder 1 is extended to increase the length, and then by pulling the pull rod 4025, the fixed block 4024 can be pulled out of the fixed groove 4023, and the extension length of the connecting strip 4014 from the connecting square tube 4013 is adjusted. After the adjustment is completed, the "T"-shaped block 4015 is slid in the connecting seat 4011 for connection, and the connecting square tube 4013 and the connecting strip 4014 form a whole. The auxiliary support frame 2, the telescopic ladder 1 and the connecting assembly 401 form a complete triangle to stably support the lower side of the device. At this time, the lower support block 303 can be pulled out, so that the sliding rod 302 slides out of the through hole 301, and the sliding rod 302 supports the lower support block 303. The lower support block 303 increases the support distance on both sides of the device, thereby increasing the placement stability.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable safety engineering ladder, characterized in that: include: A telescopic ladder (1), wherein a side end of the telescopic ladder (1) is rotatably connected to an auxiliary support frame (2); A lateral support mechanism (3), used for increasing the lateral support effect of the telescopic ladder (1) and the auxiliary support frame (2), wherein the lateral support mechanism (3) is arranged on one side of the telescopic ladder (1); A triangular support mechanism (4) is used to connect the telescopic ladder (1) and the auxiliary support frame (2), and the triangular support mechanism (4) is arranged on one side of the lateral support mechanism (3) to increase the load-bearing capacity and placement stability of the auxiliary support frame (2); There are two groups of triangular support mechanisms (4), each group of triangular support mechanisms (4) comprises a connecting component (401) arranged on one side of the lateral support mechanism (3), and a fixing component (402) is arranged on one side of the connecting component (401).

2. A portable safety engineering ladder according to claim 1, characterized in that: The lateral support mechanism (3) comprises through holes (301) opened at the side ends of the telescopic ladder (1) and the auxiliary support frame (2), the inner walls of the two through holes (301) are slidably connected to two sliding rods (302), and the side ends of the plurality of sliding rods (302) are rotatably connected to lower support blocks (303).

3. A portable safety engineering ladder according to claim 2, characterized in that: The lateral support mechanism (3) further comprises two limiting holes (304) formed at the side ends of the telescopic ladder (1), the inner walls of the two limiting holes (304) being slidably connected to limiting blocks (305), and the two limiting blocks (305) being fixedly connected to the two lower support blocks (303) respectively.

4. A portable safety engineering ladder according to claim 2, characterized in that: The connecting assembly (401) comprises an articulated block (4012) and a connecting seat (4011) which are respectively movably hinged to the adjacent ends of the two lower support blocks (303); the side end of the connecting seat (4011) is detachably connected to a connecting square tube (4013); the side end of the articulated block (4012) is fixedly connected to a connecting strip (4014); and the connecting strip (4014) is slidably connected to the inner wall of the connecting square tube (4013).

5. A portable safety engineering ladder according to claim 4, characterized in that: A "T"-shaped block (4015) is fixedly connected to the side end of the connecting square tube (4013), and the "T"-shaped block (4015) is slidably connected to the inner wall of the connecting seat (4011).

6. A portable safety engineering ladder according to claim 4, characterized in that: The fixing assembly (402) comprises a fixing groove (4023) opened at the upper end of the connecting strip (4014); the upper end of the connecting square tube (4013) is fixedly connected to a mounting seat (4021); a spring (4022) is fixedly connected to the surface of the mounting seat (4021); the lower end of the spring (4022) is fixedly connected to a fixing block (4024); the fixing block (4024) is fitted against the inner wall of the fixing groove (4023); the fixing groove (4023) and the fixing groove (4023) are both right-angled triangles, and one of the right-angled sides is perpendicular to the upper end of the connecting strip (4014).

7. A portable safety engineering ladder according to claim 6, characterized in that: The upper end of the fixed block (4024) is fixedly connected with a pull rod (4025), the pull rod (4025) slides through the upper end of the mounting seat (4021) and extends, and the spring (4022) is sleeved on the circumferential surface of the pull rod (4025).

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