CN211623275U

CN211623275U - But angle regulation's combination formula inclined shaft construction safety cat ladder

Info

Publication number: CN211623275U
Application number: CN201921896463.5U
Authority: CN
Inventors: 安一; 吕洋; 张忠; 陈杰; 雷小朋; 孙焘; 王帅; 潘小平; 周夏腾; 常乐; 宋亚航; 郭雷
Original assignee: Sinohydro Bureau 14 Co Ltd
Current assignee: Sinohydro Bureau 14 Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-10-02
Anticipated expiration: 2029-11-06

Abstract

The utility model relates to a combined inclined shaft construction safety ladder stand with adjustable angle, which belongs to the field of inclined shaft construction equipment, and comprises a joint bar, a support piece, a step and a protective railing; the inserted bars are anchored on bedrock on the bottom surface of the inclined shaft, the support rods are welded and fixed with the inserted bars along the surface of the inclined shaft, and the support rods are fixedly connected with the support rods; the cross section of the supporting piece is L-shaped, and every two supporting pieces are oppositely fixed on the inner sides of the two supporting rods respectively; the step is welded between the two opposite supporting pieces; the utility model discloses can be according to the angle of inclined shaft slope adjustment safety cat ladder, and have that the structure is firm, be convenient for ann tear open, safe and reliable, characteristics that standardization level is high.

Description

But angle regulation's combination formula inclined shaft construction safety cat ladder

Technical Field

The utility model belongs to inclined shaft construction equipment field, specific theory relates to a but angle regulation's combination formula inclined shaft construction safety cat ladder.

Background

In the tunnel and well drilling engineering, the well has an inclined angle. Wells in which the wellhead is not plumbed to the design target point but is offset from the wellhead plumb by a certain distance in a given direction are collectively referred to as deviated wells as desired. With the continuous improvement of exploration and development requirements, the proportion of directional wells, horizontal wells, branch wells and the like in drilled wells is larger and larger, and inclined well sections with different well inclinations exist in the wells.

According to the requirements of relevant national safety standards, a pedestrian passageway needs to be independently arranged during construction of the inclined shaft section, and the pedestrian passageway is usually arranged as a temporary steel ladder stand for ensuring the construction efficiency and saving the cost. Traditional steel cat ladder is generally by the reinforcing bar preparation, and the structure is unstable, easily rocks, and the safety risk is big, and is difficult to adjust thereupon when meetting the slope inclined shaft and changing, and along with the extension of working face, the extension of steel cat ladder also is difficult to operate, causes the worker of litter easily, and the potential safety hazard is big.

Disclosure of Invention

In order to overcome the problem that exists among the background art, the utility model provides a but angle regulation's combination formula inclined shaft construction safety cat ladder can be according to the angle of inclined shaft slope adjustment safety cat ladder, and has the structure firm, be convenient for ann tear open, safe and reliable, characteristics that standardization level is high.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the combined type inclined shaft construction safety ladder stand with the adjustable angle comprises a joint bar, a supporting rod, a supporting piece, a step and a protective railing; the inserted bars are anchored on bedrock on the bottom surface of the inclined shaft, the support rods are welded and fixed with the inserted bars along the surface of the inclined shaft, and the support rods are fixedly connected with the support rods; the cross section of the supporting piece is L-shaped, and every two supporting pieces are oppositely fixed on the inner sides of the two supporting rods respectively; the step is welded between the two opposite supporting pieces; the guard rails are welded on the support rods and are uniformly distributed along the support rods.

Preferably, the support rod is fixedly connected with the support rod through a scaffold fastener.

Preferably, a dense mesh net is fully paved between the guard railings.

Preferably, the support rod and the support piece are respectively provided with a bolt hole corresponding to the position, and the support rod and the support piece are connected through a bolt.

The utility model has the advantages that:

1. the utility model discloses a: (1) the support rods are fixed by the inserted bars, and the inserted bars are anchored on bedrock on the bottom surface of the inclined shaft; (2) meanwhile, the angle of the support rods can be adjusted randomly according to the gradient of the inclined shaft by the aid of the mode of interconnecting the multiple sections of support rods, the support rods are well attached to bedrock on the bottom surface of the inclined shaft, and the structure is safer and more stable.

2. The utility model discloses a cross sectional area structure of holding in the palm piece "L" shape can guarantee the effective connection of holding in the palm piece and bracing piece, can guarantee between the footboard durable, safety again.

3. The utility model discloses the design of protection railing and dense mesh net can further guarantee the utility model discloses the safety of structure.

4. The utility model discloses support piece and the bolted connection relation of holding in the palm the piece and the relation of connection of scaffold frame fastener between bracing piece and the bracing piece can make the utility model discloses convenient to detach, installation more are fit for the reuse of interim safe cat ladder in the work progress.

Drawings

Fig. 1 is a side view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view taken along plane A-A of FIG. 2;

in the figure, 1-dowel bar, 2-support bar, 3-support piece, 4-step, 5-guard rail, 6-scaffold fastener, 7-dense mesh net, 8-bolt and 10-inclined shaft bottom bedrock.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in fig. 1-3, the angle-adjustable combined inclined shaft construction safety ladder stand comprises a dowel bar 1, a support bar 2, a support piece 3, a step 4 and a guard rail 5; the dowel bars 1 are anchored on the bed rock 10 on the bottom surface of the inclined shaft, and the support rods 2 are welded and fixed with the dowel bars 1 along the surface of the inclined shaft; the distance between the support rod 2 and the inclined shaft bottom surface bedrock 10 is kept fixed as far as possible in the welding process of the support rod 2 and the dowel bar 1, so that the support rod 1 is fixed along the inclined shaft bottom surface bedrock 10 and is consistent with the inclination of the inclined shaft bottom surface bedrock 10. Support bar 2 and support bar 2 are connected through scaffold fastener 6 fixed connection, with scaffold fastener 6, can be convenient for the dismantlement of support bar 2. To the great inclined shaft region of inclination change, also can be through mode joint support pole 2 of spot welding, because the utility model discloses a main atress is not between bracing piece 2 and bracing piece 2, and bracing piece 2 only plays the effect of auxiliary stay with the fixed of bracing piece 2, and the mode of consequently spot welding or the mode that scaffold puts up the fastener connection can not influence the utility model discloses a stress structure.

The cross section of the supporting piece 3 is L-shaped, and every two supporting pieces are oppositely fixed on the inner sides of the two supporting rods 2 respectively; bolt holes are respectively formed in the opposite positions of the support rod 2 and the support piece 3, and the support rod 2 and the support piece 3 are connected through bolts 8. The step 4 is welded between two opposite holders 3. The cross-sectional area structure of the L-shaped support part 3 can ensure the effective connection between the support part 3 and the support rod 2 and the firmness and safety of the pedal 4.

The guard rails 5 are vertically fixed on the support rods 2 and are uniformly distributed along the support rods 2, and dense meshes 7 are fully paved among the guard rails 5. The design of guardrail bar and dense mesh net can further guarantee the safety of the structure of the utility model.

As a preferred technical scheme, the supporting rod 2 is made of a phi 48 steel pipe, and the single length is 1.2 m; the dowel bar 1 is made of three-level deformed steel with the diameter of 22mm, the length of the dowel bar is 35cm, and the rock penetration depth of the dowel bar is 30 cm; the bracket is made of L50 multiplied by 4 equal angle steel and has the length of 30 cm; the guard rail is made of three-level screw-thread steel with the diameter of 22mm and the height of 1.2 m.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an angle adjustable's combination formula inclined shaft construction safety cat ladder which characterized in that: the combined type inclined shaft construction safety ladder stand with the adjustable angle comprises a joint bar, a supporting rod, a supporting piece, a step and a protective railing; the inserted bars are anchored on bedrock on the bottom surface of the inclined shaft, the support rods are welded and fixed with the inserted bars along the surface of the inclined shaft, and the support rods are fixedly connected with the support rods; the cross section of the supporting piece is L-shaped, and every two supporting pieces are oppositely fixed on the inner sides of the two supporting rods respectively; the step is welded between the two opposite supporting pieces; the guard rails are welded on the support rods and are uniformly distributed along the support rods.

2. The angle-adjustable combined inclined shaft construction safety ladder stand as claimed in claim 1, wherein: the support rod is fixedly connected with the support rod through a scaffold fastener.

3. The angle-adjustable combined inclined shaft construction safety ladder stand as claimed in claim 1, wherein: dense meshes are fully paved among the guard railings.

4. The angle-adjustable combined inclined shaft construction safety ladder stand as claimed in claim 1, wherein: the support rod and the support piece are respectively provided with a bolt hole aiming at the position, and the support rod is connected with the support piece through a bolt.