Safety step device
By designing a safety step distance device for the installation cylinder, measuring mechanism, and attitude adjustment mechanism, the problem of the inflexible adjustment of existing devices was solved, enabling accurate measurement in multiple directions and attitudes, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FOURTH ENG CO LTD OF CHINA RAILWAYNO 20 BUREAU GRP
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-12
Smart Images

Figure CN224353779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safe step distance measurement technology, and specifically to a safe step distance device. Background Technology
[0002] In the construction process, accurately measuring the relative position of scaffolding to surrounding structures is crucial for ensuring construction safety and project quality. Safety spacing devices, as specialized equipment for this measurement function, are widely used in scaffolding erection, maintenance, and dismantling. However, existing safety spacing devices for measurement suffer from significant technical bottlenecks in practical applications. Once installed and fixed, the measurement direction is strictly limited, making flexible adjustment to multiple angles and directions impossible to meet the actual measurement needs of the construction site. When measuring the spacing of scaffolding in different directions, operators often need to disassemble and reinstall the entire device. This not only reduces measurement efficiency but may also lead to decreased measurement accuracy due to repeated disassembly and reassembly, and even pose a safety hazard of device detachment, failing to meet the actual needs of dynamic measurement in construction. Therefore, this invention proposes a safety spacing device to improve the above-mentioned problems. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the safety step distance device in the prior art cannot be flexibly adjusted according to the actual measurement needs of the construction site, thereby providing a safety step distance device.
[0004] To address the above problems, this utility model provides a safety step distance device, which includes:
[0005] Mounting cylinder
[0006] A measuring mechanism is disposed inside the mounting cylinder, and the measuring mechanism is used to measure the safety step distance;
[0007] An attitude adjustment mechanism is provided on the side of the mounting cylinder away from the measuring mechanism, and is used to adjust the attitude of the mounting cylinder in multiple directions;
[0008] The mounting mechanism connects to the attitude adjustment mechanism to enable the external connection of the safety step distance device.
[0009] Preferably, the mounting mechanism includes: a pair of first mounting strips and a pair of second mounting strips.
[0010] One end of the pair of first mounting strips and one end of the pair of second mounting strips are spaced apart from each other, and the other end of the pair of second mounting strips is rotatably connected to the middle of the pair of first mounting strips;
[0011] An adjusting rod is provided between the middle of a pair of second mounting strips and the other end of a pair of first mounting strips.
[0012] Preferably, a plurality of connecting rods are provided between a pair of first mounting strips and a pair of second mounting strips.
[0013] Preferably, a clamping part is provided at one end of a pair of first mounting strips and a pair of second mounting strips that are spaced apart from each other, and a clamping surface is provided on one side of the pair of clamping parts that face each other.
[0014] Preferably, a first linkage member is provided at one end of the pair of first mounting strips away from the clamping part, and the first linkage member is rotatably connected to the end of the pair of first mounting strips away from the clamping part; a second linkage member is provided at the middle of the pair of second mounting strips, and the second linkage member is rotatably connected to the middle of the pair of second mounting strips; the first linkage member is provided with a first screw hole corresponding to the adjusting rod; the adjusting rod is provided with a threaded ring corresponding to the first screw hole; the adjusting rod is screwed to the first screw hole.
[0015] The second linkage is provided with a rotating hole, one end of the adjusting rod extends into the rotating hole and is rotatably connected to the rotating hole, and the other end of the adjusting rod is provided with an operating handle.
[0016] Preferably, the adjusting rod is provided with limit rings at both ends of the second linkage.
[0017] Preferably, the attitude adjustment mechanism includes: a positioning cylinder, which is disposed on the side of the clamping part where the second mounting strip is located, facing away from the clamping surface; a ball and a positioning rod are disposed inside the positioning cylinder, one end of the positioning rod is connected to the ball, and the other end of the positioning rod is connected to the center of the bottom of the mounting cylinder;
[0018] The positioning cylinder has a second screw hole on its outer side, and an adjusting member is provided in the second screw hole. The adjusting member is screwed to the second screw hole and one end extends into the positioning cylinder to abut against the ball.
[0019] Preferably, the outer side of the positioning cylinder has a strip-shaped notch along the height direction.
[0020] Preferably, the measuring mechanism includes a laser rangefinder, which is disposed inside the mounting cylinder.
[0021] The safety step distance device provided by this utility model has the following beneficial effects:
[0022] 1. This utility model provides an installation position for the measuring mechanism through an installation cylinder. The specifications of the installation cylinder can be set to correspond to the measuring mechanism, allowing the measuring mechanism to be installed on the installation cylinder through simple snap-fit or plug-in methods. The attitude adjustment mechanism adjusts the attitude of the installation cylinder relative to the measuring point, enabling multi-directional and multi-attitude measurements to improve measurement efficiency. The installation mechanism externally connects to the installation step distance device to realize the installation of its corresponding measuring point. It can be quickly fixed during connection and easily disassembled during disassembly, thereby improving measurement efficiency.
[0023] 2. This utility model also achieves the adjustment of the gap between the clamping parts by screwing the adjusting rod and the first screw hole together, and rotating the adjusting rod and the rotating hole together, so that the distance between the first linkage and the second linkage can be changed by operating the adjusting rod.
[0024] 3. This utility model also allows for relative adjustment of the ball inside the positioning cylinder, thereby changing the posture of the connected positioning rod relative to the positioning cylinder and the posture of the connected mounting cylinder relative to the positioning cylinder. The adjusting component is equipped with a threaded ring corresponding to the second screw hole. When the adjusting component is rotated, the second screw hole and the adjusting component are screwed together, so that one end of the adjusting component extending into the positioning cylinder abuts against the ball, thus limiting the ball within the positioning cylinder and fixing it tightly. The posture of the positioning rod is also fixed, allowing for multi-posture and multi-angle adjustment of the measuring mechanism. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the assembly of this utility model;
[0026] Figure 2 This is a schematic diagram of the installation of the connecting rod structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the clamping surface structure of this utility model.
[0028] Figure 4 This is a schematic diagram of the installation of the strip-shaped notch structure of this utility model.
[0029] The reference numerals in the attached figures are as follows:
[0030] 1. Mounting cylinder; 2. First mounting strip; 3. Second mounting strip; 4. Connecting rod; 5. Clamping part; 6. Clamping surface; 7. First linkage component; 8. Second linkage component; 9. Positioning cylinder; 10. Ball; 11. Positioning rod; 12. Adjusting component; 13. Strip notch; 14. Laser rangefinder; 15. Adjusting rod. Detailed Implementation
[0031] like Figure 1-4 As shown, this utility model provides a safety step distance device, which includes:
[0032] A mounting cylinder 1 and a measuring mechanism are disposed within the mounting cylinder 1. The measuring mechanism is used to measure the safe step distance. A posture adjustment mechanism is disposed on the side of the mounting cylinder 1 away from the measuring mechanism and is used to adjust the posture of the mounting cylinder 1 in multiple directions. A mounting mechanism is connected to the posture adjustment mechanism to realize the external connection of the safe step distance device. Figure 1-4 As shown, the mounting cylinder 1 provides an installation position for the measuring mechanism. The specifications of the mounting cylinder 1 can be set to correspond to the measuring mechanism, so that the measuring mechanism can be installed on the mounting cylinder 1 by simple snap-fit or plug-in method. The attitude adjustment mechanism adjusts the attitude of the mounting cylinder 1 relative to the measuring point, so that multi-directional and multi-attitude measurements can be performed to improve measurement efficiency. The mounting mechanism connects to the mounting step device to realize the installation of its corresponding measuring point. It can be quickly fixed during connection and easily disassembled during disassembly, thereby improving measurement efficiency.
[0033] In some embodiments, the mounting mechanism includes: a pair of first mounting strips 2 and a pair of second mounting strips 3, with one end of the pair of first mounting strips 2 and one end of the pair of second mounting strips 3 spaced apart from each other, and the other end of the pair of second mounting strips 3 rotatably connected to the middle of the pair of first mounting strips 2; an adjusting rod 15 is provided between the middle of the pair of second mounting strips 3 and the other end of the pair of first mounting strips 2. Figure 1-4 As shown, the first mounting strip 2 can be V-shaped or L-shaped with one end extending outwards, while the second mounting strip 3 can also be V-shaped or L-shaped. The gap between the middle of the second mounting strip 3 and the first mounting strip 2 can be adjusted by adjusting the rod 15 to achieve the desired gap size between the first mounting strip 2 and the second mounting strip 3 at one end. This allows it to be fixedly installed on scaffolding or columns for clamping, thus securing the entire device.
[0034] In some embodiments, a plurality of connecting rods 4 are respectively provided between a pair of first mounting strips 2 and a pair of second mounting strips 3. For example... Figure 1-4 As shown, the connecting rod 4 is connected between a pair of first mounting strips 2 and a pair of second mounting strips 3 respectively. The structure formed by this connection is such that the middle part of the first mounting strip 2 and the other end of the second mounting strip 3 are rotatably connected. When the relative angles of the first mounting strip 2 and the second mounting strip 3 are adjusted, interference between them is avoided. At the same time, the overall weight can be reduced, making it easier to use.
[0035] In some embodiments, a clamping portion 5 is provided at one end of a pair of first mounting strips 2 and a pair of second mounting strips 3 that are spaced apart from each other, and a clamping surface 6 is provided on one side of each pair of clamping portions 5 that faces each other. For example... Figure 1-4As shown, the clamping part 5 is used to abut against columns, scaffolding, etc. The clamping surface 6 is provided to enhance the friction effect during abutment and prevent slippage. The clamping surface 6 is made of rubber to increase friction.
[0036] In some embodiments, a first linkage 7 is provided at the end of a pair of first mounting strips 2 away from the clamping part 5, and the first linkage 7 is rotatably connected to the end of the pair of first mounting strips 2 away from the clamping part 5; a second linkage 8 is provided at the middle of a pair of second mounting strips 3, and the second linkage 8 is rotatably connected to the middle of the pair of second mounting strips 3; the first linkage 7 is provided with a first screw hole corresponding to the adjusting rod 15, and the adjusting rod 15 is provided with a threaded ring corresponding to the first screw hole, and the adjusting rod 15 is screwed to the first screw hole; the second linkage 8 is provided with a rotating hole, one end of the adjusting rod 15 extends into the rotating hole and is rotatably connected to the rotating hole, and the other end of the adjusting rod 15 is provided with an operating handle. Figure 1-4 As shown, the first linkage 7 and the second linkage 8 are rotatably connected to their respective pair of first mounting strips 2 and pair of second mounting strips 3 by setting a pin or rotating rod on the side of the first linkage 7 near the first mounting strip 2, thereby achieving the rotatable connection. The rotatable connection of the second linkage 8 and the second mounting strip 3 is similar. Since the adjusting rod 15 is screwed to the first screw hole, the adjusting rod 15 is rotatably connected to the rotating hole, so that by operating the adjusting rod 15, the distance between the first linkage 7 and the second linkage 8 can be changed, thereby adjusting the size of the gap between the clamping parts 5. The operating handle can be L-shaped, so that the adjusting arm of the adjusting rod 15 is extended for easy operation.
[0037] In some embodiments, the adjusting rod 15 is further provided with limit rings at both ends of the second linkage 8. For example... Figure 1-4 As shown, the limiting ring keeps the adjusting rod 15 and the rotating hole rotatably connected, while keeping the positions of the second linkage 8 and the adjusting rod 15 relatively fixed. The first linkage 7 can be adjusted simply by adjusting the adjusting rod 15.
[0038] In some embodiments, the attitude adjustment mechanism includes: a positioning cylinder 9, which is disposed on the side of the clamping portion 5 where the second mounting strip 3 is located, facing away from the clamping surface 6; a ball 10 and a positioning rod 11 are disposed inside the positioning cylinder 9, one end of the positioning rod 11 is connected to the ball 10, and the other end of the positioning rod 11 is connected to the bottom center of the mounting cylinder 1; a second screw hole is provided on the outer side of the positioning cylinder 9, and an adjusting member 12 is disposed inside the second screw hole, the adjusting member 12 being screwed to the second screw hole and one end extending into the positioning cylinder 9 to abut against the ball 10. Figure 1-4As shown, the ball 10 inside the positioning cylinder 9 can be adjusted relative to the positioning cylinder 9, thereby changing the posture of the connected positioning rod 11 relative to the positioning cylinder 9 and thus changing the posture of the connected mounting cylinder 1 relative to the positioning cylinder 9. The adjusting member 12 is provided with a threaded ring corresponding to the second screw hole. When the adjusting member 12 is rotated, the second screw hole and the adjusting member 12 are screwed together, so that one end of the adjusting member 12 extending into the positioning cylinder 9 abuts against the ball 10, thereby limiting the ball 10 inside the positioning cylinder 9 and fixing the ball 10 tightly. The posture of the positioning rod 11 is also fixed, allowing for multi-posture and multi-angle adjustment of the measuring mechanism. A limiting ring is provided on the inner edge of the positioning cylinder 9 to prevent the ball 10 from detaching from the positioning cylinder 9. An adjusting handle is provided on the end of the adjusting member 12 located outside the positioning cylinder 9.
[0039] In some embodiments, a strip-shaped notch 13 is provided on the outer side of the positioning cylinder 9 along the height direction. For example... Figure 1-4 As shown, the positioning cylinder 9 can be made of plastic or metal with good ductility and deformation, so that the opening size inside the positioning cylinder 9 can be further enlarged through the strip notch 13, making it easier to put the ball 10 into the positioning cylinder 9, and further improving the adjustment space of the ball 10 inside the positioning cylinder 9.
[0040] In some embodiments, the measuring mechanism includes a laser rangefinder 14, which is disposed within the mounting cylinder. For example... Figure 1-4 As shown, commercially available laser rangefinders work by emitting a pulsed laser beam towards the target object. The beam is reflected off the object's surface and captured by the receiver. A high-precision timer measures the time difference Δt between the laser beam's emission and reception. The straight-line distance between the device and the target object is calculated using the formula D = c × Δt / 2 (where c is the speed of light). This principle allows for millimeter-level measurement accuracy, meeting the precise monitoring requirements for scaffolding safety clearances.
[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A safety step distance device, characterized in that, include: Mounting cylinder A measuring mechanism is disposed inside the mounting cylinder, and the measuring mechanism is used to measure the safety step distance; An attitude adjustment mechanism is provided on the side of the mounting cylinder away from the measuring mechanism, and is used to adjust the attitude of the mounting cylinder in multiple directions; The mounting mechanism connects to the attitude adjustment mechanism to enable the external connection of the safety step distance device.
2. The safety step distance device according to claim 1, characterized in that: The mounting mechanism includes: a pair of first mounting strips and a pair of second mounting strips. One end of the pair of first mounting strips and one end of the pair of second mounting strips are spaced apart from each other, and the other end of the pair of second mounting strips is rotatably connected to the middle of the pair of first mounting strips; An adjusting rod is provided between the middle of a pair of second mounting strips and the other end of a pair of first mounting strips.
3. The safety step distance device according to claim 2, characterized in that: Multiple connecting rods are respectively provided between a pair of first mounting strips and a pair of second mounting strips.
4. The safety step distance device according to claim 2, characterized in that: A clamping part is provided at one end of a pair of first mounting strips and a pair of second mounting strips that are spaced apart from each other, and a clamping surface is provided on one side of the pair of clamping parts that face each other.
5. The safety step distance device according to claim 4, characterized in that: A first linkage member is provided at one end of the pair of first mounting strips away from the clamping part, and the first linkage member is rotatably connected to the end of the pair of first mounting strips away from the clamping part; a second linkage member is provided in the middle of the pair of second mounting strips, and the second linkage member is rotatably connected to the middle of the pair of second mounting strips; a first screw hole is provided in the first linkage member corresponding to the adjusting rod; a threaded ring corresponding to the first screw hole is provided on the adjusting rod; and the adjusting rod is screwed to the first screw hole. The second linkage is provided with a rotating hole, one end of the adjusting rod extends into the rotating hole and is rotatably connected to the rotating hole, and the other end of the adjusting rod is provided with an operating handle.
6. The safety step distance device according to claim 5, characterized in that: The adjusting rod is also provided with limit rings at both ends of the second linkage.
7. The safety step distance device according to claim 4, characterized in that: The attitude adjustment mechanism includes: a positioning cylinder, which is disposed on the side of the clamping part where the second mounting strip is located, facing away from the clamping surface; a ball and a positioning rod are disposed inside the positioning cylinder, one end of the positioning rod is connected to the ball, and the other end of the positioning rod is connected to the center of the bottom of the mounting cylinder; The positioning cylinder has a second screw hole on its outer side, and an adjusting member is provided in the second screw hole. The adjusting member is screwed to the second screw hole and one end extends into the positioning cylinder to abut against the ball.
8. The safety step distance device according to claim 7, characterized in that: The positioning cylinder has a strip notch along its height direction on its outer side.
9. The safety step distance device according to claim 1, characterized in that: The measuring mechanism includes a laser rangefinder, which is disposed inside the mounting cylinder.