Jack ladder with upper end locked by controlling of lower part
A technology of soft ladders and soft ropes, which is applied in the direction of ladders, buildings, building structures, etc., which can solve the problems of safety hazards, no lower part of the ladder to control the upper end of the ladder to be locked, and the hook to be detached, etc., to achieve a reasonable design effect
Active Publication Date: 2018-03-23
江苏天凤源食品有限公司
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Problems solved by technology
[0002] As known, in the power industry or other constructions, it is often necessary to use a ladder with two hooks on the upper part to carry out construction operations. The objects hooked by the upper part of the ladder include soft strips such as cables and ropes. Because these soft strips The object has a certain elasticity, so it often occurs that the hook is detached under the strong springing force of the strip, which leads to a great safety hazard. In the prior art, there is no technology for the lower part to control the locking of the upper end of the ladder, so it is necessary to improve on this technique
Method used
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[0021] The present invention can be explained in more detail by the following examples, and the purpose of disclosing the present invention is intended to protect all changes and improvements within the scope of the present invention, and the present invention is not limited to the following examples;
[0022] combined with figure 1 , 2 Or the soft ladder described in 3 that is controlled by the lower part and the upper end is locked, comprising a short riser 8, a flat rod 1, a rear bayonet block, a lifting rod 4, a spring 25, a lifting rod 11, a stay rope 10 and a soft ladder, the short The standpipe 8 is a square pipe structure, and the two ends of the flat rod 1 are respectively connected by welding. Flat rods 1 are arranged between them, and the two rear bayonet blocks are respectively fixed on the upper ends of the two short standpipes 8, and the inserting blocks 6 at the lower part of the two rear bayonet blocks are respectively provided with through holes 19 through wh...
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The invention discloses a jack ladder with the upper end being locked by the controlling of the lower part, and relates to a jack ladder. A flat bar (1) is arranged between two short vertical pipes (8). Two rear bayonet blocks are correspondingly fixed at the upper ends of two short vertical pipes, the upper parts of lifting rods (4) correspondingly arranged in the two short vertical pipes penetrate through holes (19) of two insert blocks (6). Bottom plates (27) are correspondingly arranged on the lower end ports of the short vertical pipes. The upper end surfaces of protruding rings (23) arranged on the middle parts of the two lifting rods abut on the lower end surfaces (22) of the two insert blocks, springs (25) sleeved on the two lifting rods correspondingly abut on the two protruding rings and the two bottom plates, the lower ends of the two lifting rods correspondingly penetrate through light holes (28) of the two bottom plates and are connected with the upper ends of two drawstrings (10). The upper end of a lift bar (11) is fixedly connected to the middle of the flat bar, and the upper end of the jack ladder is connected to the flat bar. The jack ladder uses the lift bar to catch strips by the two rear bayonet blocks, the two lifting rods control the opening and closing of the bayonet to realize the control of controlling the upper end of the crawling ladder to connect bars by the lower part.
Description
technical field [0001] The invention relates to a soft ladder, in particular to a soft ladder whose upper end is locked by the lower part. Background technique [0002] As known, in the power industry or other constructions, it is often necessary to use a ladder with two hooks on the upper part to carry out construction operations. The objects hooked by the upper part of the ladder include soft strips such as cables and ropes. Because these soft strips The object has a certain elasticity, so it often occurs that the hook is detached under the strong springing force of the strip, which leads to a great safety hazard. In the prior art, there is no technology for the lower part to control the locking of the upper end of the ladder, so it is necessary to Improve on this technique. Contents of the invention [0003] In order to overcome the deficiencies in the background technology, the present invention discloses a soft ladder whose upper end is locked by the lower part. The ...
Claims
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IPC IPC(8): E06C1/36E06C1/56E06C7/50E06C7/00
CPCE06C1/36E06C1/525E06C1/56E06C7/00E06C7/505
Inventor 方松科
Owner 江苏天凤源食品有限公司