CN218479787U - Safe operation ladder - Google Patents

Abstract

The utility model discloses a safe operation ladder, including ladder body and a plurality of running-board, be equipped with digital display angular surveying chi on the bottom lateral wall of ladder body, digital display angular surveying chi is including rotating the scale and the movable scale of connecting, the movable scale is fixed on the bottom lateral wall of ladder body, be connected through the bolt subassembly between scale and the ladder body. According to the scheme, when an operator works aloft, the ladder monitors that the guardian holds the ladder stably in real time, and when the ladder is not occupied, a prompt sound is given out; when the operator places the ladder, the elevation angle of the ladder is intuitively controlled within a safety range, and the ladder is placed to topple.

Description

Safe operation ladder

Technical Field

The utility model belongs to the technical field of the ladder technique and specifically relates to a safe operation ladder is related to.

Background

When the electric power construction and the high-altitude operation of the overhaul site are carried out, the maintainers often need to use stairs to carry out the climbing operation. According to requirements, a guardian is required to support and monitor the stairs under the stairs during the overhead operation. However, in the actual field operation process, no guardian exists under stairs or the elevation angle of the stair cannot be controlled, and when the elevation angle is too large or too small, the stair cannot be stably placed, so that the safety of an operator cannot be guaranteed.

For example, chinese patent publication No. CN103510841B, published 2016, 06, 08, entitled "ladder" includes a ladder main body, a flexible wire, and a support arm, wherein the flexible wire is disposed along a length direction of the ladder main body, and both ends of the flexible wire are connected to both ends of the ladder main body, a first cross bar is disposed in a middle portion of the ladder main body, and the support arm is supported between the first cross bar and the flexible wire. Compared with the common ladder, the ladder of the invention has the advantages of higher strength and longer length.

The prior patent has the following disadvantages: (1) When the operators work at the same height, the guardian cannot monitor whether to hold the ladder stably under the ladder; (2) The elevation angle of the stair placement cannot be controlled, and the stair placement is unstable when the elevation angle is too large or too small.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving during operation such as operation personnel height operation, can't monitor whether have the guardian to hold up the uncontrollable problem in angle of elevation that steady ladder, stair were placed under the ladder, provide one kind can real-time supervision and remind the guardian to hold up the safe operation ladder of angle of elevation size that steady ladder, visual control stair were placed.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a safe operation ladder, includes ladder body and a plurality of running-board, be equipped with digital display angular surveying chi on the bottom lateral wall of ladder body, digital display angular surveying chi is including rotating scale and the movable scale of connecting, the movable scale is fixed on the bottom lateral wall of ladder body, be connected through bolt subassembly between scale and the ladder body. The utility model discloses an angle that the ladder shows through digital display angular surveying chi controls the ladder at biggest, minimum angle of elevation angle within range, avoids because of the too big or too little risk of falling the ladder that leads to of angle of elevation, reduces the incident, guarantees aerial work personnel's personal safety. During the use, rotate the bolt subassembly and put down the digital display bevel protractor, show the angle of ladder and indicate the operation personnel.

Preferably, a digital display angle gauge is arranged on the fixed scale, capacitive grating sensors are arranged on two opposite side surfaces, close to the digital display angle gauge, of the fixed scale and the movable scale, and the movable scale and the fixed scale are matched with the digital display angle gauge through the capacitive grating sensors to display the rotation angle.

Preferably, the bolt assembly comprises a first fixing plate arranged on the ladder body, a second fixing plate arranged on the fixed length, a first bolt sleeve and a second bolt sleeve arranged on the first fixing plate, a third bolt sleeve arranged on the second fixing plate, a bolt rod, a limiting handle arranged on the bolt rod and a limiting part arranged on the first fixing plate, wherein a limiting hole matched with the limiting part is formed in the limiting handle, the bolt rod is sleeved in the first bolt sleeve, the second bolt sleeve and the third bolt sleeve, and the limiting handle is positioned between the first bolt sleeve and the second bolt sleeve. The bolt rod is movably arranged in the first bolt sleeve, the second bolt sleeve and the third bolt sleeve, and when the bolt rod is not used, the bolt rod is inserted into the third bolt sleeve to limit the fixed ruler and the movable ruler.

Preferably, a torsion spring is sleeved on the latch rod and comprises a torsion portion sleeved on the latch rod, and a first force arm portion and a second force arm portion located at two ends of the torsion portion, the torsion portion comprises a first torsion portion and a second torsion portion, the first torsion portion and the second torsion portion are symmetrically arranged according to the limiting handle, the first force arm portion of the first torsion portion is connected with the first force arm portion of the second torsion portion, the first force arm portion abuts against the first fixing plate, the second force arm portion abuts against the limiting handle, and the limiting handle is limited on the first fixing plate by the torsion spring. The torsion spring presses the limiting handle on the first fixing plate. When the digital display angle measuring scale is not used, the limiting piece is positioned in the limiting hole of the limiting handle, and the second force arm part presses the limiting handle on the first fixing plate; when using digital display angular surveying chi, the operator overcomes torsion spring's torsion, rotates spacing handle around the bolt pole and leaves the locating part, removes the bolt pole for the bolt pole leaves third bolt cover, then rotates and opens the scale and measure.

Preferably, the outer side wall of the lower part of the ladder body is provided with a sound-light alarm device, and the sound-light alarm device comprises a sound-light alarm and a pressure sensor which are connected through a controller.

Preferably, the digital display angle measuring instrument is connected with the audible and visual alarm through the controller.

Preferably, the anti-skidding wrapping pads are sleeved at two ends of the ladder body, which are in contact with the wall surface.

Therefore, the utility model discloses following beneficial effect has: (1) When an operator works aloft, the ladder monitors that a guardian holds the ladder stably in real time, and a prompt sound is given when the ladder is not occupied; (2) When the operator places the ladder, the elevation angle of the ladder is intuitively controlled within a safety range, and the ladder is placed to topple.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a partial enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic structural diagram of a fixed-length open state according to an embodiment of the present invention.

Fig. 4 is a partially enlarged view of B in fig. 3.

Fig. 5 is a schematic structural diagram of a second embodiment of the present invention.

As shown in the figure: the anti-skidding ladder comprises a ladder body 1, a pedal 2, a fixed ruler 3, a movable ruler 4, a digital display angle gauge 5, a first fixing plate 6, a second fixing plate 7, a first bolt sleeve 8, a second bolt sleeve 9, a third bolt sleeve 10, a bolt rod 11, a limiting handle 12, a limiting piece 13, a first force arm 14, a second force arm 15, a first torsion portion 16, a second torsion portion 17, an acousto-optic alarm device 18 and an anti-skidding wrapping pad 19.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Embodiment one, as shown in fig. 1 to 4 a safe operation ladder, including ladder body 1 and a plurality of running-board 2, be equipped with digital display angular surveying chi on the bottom lateral wall of ladder body 1, digital display angular surveying chi is including rotating the scale 3 and the movable scale 4 of connecting, and movable scale 4 is fixed on the bottom lateral wall of ladder body 1, is connected through the bolt subassembly between scale 3 and the ladder body 1. The utility model discloses an angle that the ladder shows through digital display angular surveying chi controls the ladder at biggest, minimum angle of elevation angle within range, avoids because of the too big or too little risk of falling the ladder that leads to of angle of elevation, reduces the incident, guarantees aerial work personnel's personal safety. During the use, rotate the bolt subassembly and put down the digital display bevel protractor, show the angle of ladder and indicate the operation personnel.

According to the safety operation ladder in the embodiment, the digital display angular measurement ruler is connected with the bolt assembly, so that an operator can control the ladder within the range of the maximum elevation angle and the minimum elevation angle, and personal safety of high-altitude operation personnel is guaranteed.

As shown in fig. 2 and 4, a digital display angle gauge 5 is arranged on the fixed scale 3, capacitive sensors are arranged on two opposite side surfaces of the fixed scale 3 and the movable scale 4 close to the digital display angle gauge 5, and the movable scale 4 and the fixed scale 3 are matched with the digital display angle gauge 5 through the capacitive sensors to display a rotation angle.

As shown in fig. 2, the latch assembly includes a first fixing plate 6 disposed on the ladder body 1, a second fixing plate 7 disposed on the fixed length 3, a first latch sleeve 8 and a second latch sleeve 9 disposed on the first fixing plate 6, a third latch sleeve 10 disposed on the second fixing plate 7, a latch rod 11, a limit handle 12 disposed on the latch rod 11, and a limit part 13 disposed on the first fixing plate 6, a limit hole matched with the limit part 13 is disposed on the limit handle 12, the latch rod 11 is sleeved on the first latch sleeve 8, the second latch sleeve 9 and the third latch sleeve 10, and the limit handle 12 is disposed between the first latch sleeve 8 and the second latch sleeve 9. The bolt rod 11 is movably arranged in the first bolt sleeve 8, the second bolt sleeve 9 and the third bolt sleeve 10, and when the bolt rod is not used, the bolt rod 11 is inserted into the third bolt sleeve 10 to limit the fixed ruler 3 and the movable ruler 4.

As shown in fig. 1, the outer side wall of the lower part of the ladder body 1 is provided with a sound and light alarm device 18, and the sound and light alarm device 18 comprises a sound and light alarm and a pressure sensor which are connected through a controller. The digital display angle measuring instrument is connected with the audible and visual alarm through the controller. The two ends of the ladder body 1 contacting with the wall surface are sleeved with anti-skid wrapping pads 19. Use the ladder at the time of beginning to work at first open digital display angular surveying chi bolt subassembly make digital display angular surveying chi's scale 3 keep flat subaerial, open the audible-visual annunciator switch, measure the angle of ladder and ground, if the angle opens and shuts not send alarm sound and prompt tone at safe angular range audible-visual annunciator, until the stair angle in safety range. When the operating personnel climbs the ladder, a person needs to have a staircase, the staircase personnel put hands at the pressure sensor, and when the hands are not put at the pressure sensor, the audible and visual alarm gives out prompt sound for 'please place both hands at the designated position to stabilize the staircase'.

The second embodiment is similar to the first embodiment, except that, as shown in fig. 5, a torsion spring is sleeved on the latch rod 11, the torsion spring includes a torsion portion sleeved on the latch rod 11, a first torsion arm 14 and a second torsion arm 15 located at two ends of the torsion portion, the torsion portion includes a first torsion portion 16 and a second torsion portion 17, the first torsion portion 16 and the second torsion portion 17 are symmetrically arranged according to the position-limiting handle 12, the first torsion arm 14 of the first torsion portion 16 is connected with the first torsion arm 14 of the second torsion portion 17, the first torsion arm 14 abuts against the first fixing plate 6, the second torsion arm 15 abuts against the position-limiting handle 12, and the torsion spring limits the position-limiting handle 12 on the first fixing plate 6. The torsion spring presses the limit knob 12 against the first fixing plate 6. When the digital display angle measuring scale is not used, the limiting piece 13 is positioned in the limiting hole of the limiting handle 12, and the second force arm part 15 presses the limiting handle 12 on the first fixing plate 6; when using digital display angular surveying chi, the operator overcomes torsion spring's torsion, rotates spacing handle 12 around bolt pole 11 and leaves locating part 13, removes bolt pole 11 for bolt pole 11 leaves third bolt cover 10, then rotates and opens scale 3 and measure.

The above embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. All equivalent changes made according to the shape and structure of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a safe operation ladder, includes ladder body (1) and a plurality of running-board (2), its characterized in that, be equipped with digital display angular surveying chi on the bottom lateral wall of ladder body, digital display angular surveying chi is including rotating scale (3) and the movable scale (4) of connecting, the movable scale is fixed on the bottom lateral wall of ladder body, be connected through the bolt subassembly between scale and the ladder body.

2. The ladder for the safe operation as claimed in claim 1, wherein the fixed ruler is provided with a digital display angle gauge (5), the fixed ruler and the movable ruler are provided with capacitive grating sensors on two opposite side surfaces close to the digital display angle gauge, and the movable ruler and the fixed ruler are matched with the digital display angle gauge through the capacitive grating sensors to display the rotation angle.

3. The ladder for the safe operation according to the claim 1 or 2 is characterized in that the bolt component comprises a first fixing plate (6) arranged on the ladder body, a second fixing plate (7) arranged on the fixed length, a first bolt sleeve (8) and a second bolt sleeve (9) arranged on the first fixing plate, a third bolt sleeve (10) arranged on the second fixing plate, a bolt rod (11), a limiting handle (12) arranged on the bolt rod and a limiting part (13) arranged on the first fixing plate, wherein the limiting handle is provided with a limiting hole matched with the limiting part, the bolt rod is sleeved in the first bolt sleeve, the second bolt sleeve and the third bolt sleeve, and the limiting handle is positioned between the first bolt sleeve and the second bolt sleeve.

4. A ladder as claimed in claim 3, wherein the latch rod is provided with a torsion spring, the torsion spring comprises a torsion portion provided on the latch rod, a first force arm (14) and a second force arm (15) provided at opposite ends of the torsion portion, the torsion portion comprises a first torsion portion (16) and a second torsion portion (17), the first torsion portion and the second torsion portion are symmetrically provided according to the position limiting handle, the first force arm of the first torsion portion is connected with the first force arm of the second torsion portion, the first force arm abuts against the first fixing plate, the second force arm abuts against the position limiting handle, and the torsion spring limits the position limiting handle to the first fixing plate.

5. A ladder for safe operation according to claim 1, 2 or 4, characterized in that the outer side wall of the lower part of the ladder body is provided with a sound and light alarm device (18), and the sound and light alarm device comprises a sound and light alarm and a pressure sensor which are connected through a controller.

6. A ladder as claimed in claim 5, wherein the digital display angle measuring device is connected to an audible and visual alarm through a controller.

7. A ladder as claimed in claim 5, wherein anti-skid wrapping pads (19) are provided at the ends of the ladder body which contact the wall.

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