CN201809992U - Building jacking system with self-locking function - Google Patents

Abstract

The utility model discloses a building jacking system with self-locking function, which is arranged at the bottom of a building, and comprises a jacking tray for loading, a jack for jacking, and a plurality of pressure anchor self-locking devices, wherein each pressure anchor self-locking device is arranged between the jacking tray and the building, and comprises a compression bar and an anchorage device sheathed on the compression bar; the upper end of the compression bar is fixed with the bottom of the building; and the bottom of the building is fixed on the jacking tray. During the jacking process, the compression bar is automatically locked by the anchorage device when the jack fails suddenly and retracts, and the load of the building is transferred to the jacking tray through the compression bar and the anchorage device in order, thereby avoiding the fallback of the building, ensuring the safety of the jacking operation, simplifying the operation and reducing the labor intensity.

Description

Building jack-up system with auto-lock function

Technical field

The utility model relates to the jacking technology of building, more particularly, relates to a kind of building jack-up system with auto-lock function.

Background technology

Building are being carried out in the process of jacking, leakage of oil or unexpected draining phenomenon can take place in the jack that is used for jacking, thereby cause the end face retraction of jack, and then cause the jack catastrophic failure, cause security incident easily.In order the load of building to be transformed into safely on other the support system, must adopt corresponding spacing measures.At present, insurance mode commonly used is exactly manually to fill up in the jack both sides to put interim cushion block or steel support, but along with the jacking stroke of jack constantly increases, interim cushion block is also wanted continuous cushioning, exists therefore that labor strength is big, efficiency of construction is low and shortcoming such as poor stability.

The utility model content

At the above-mentioned shortcoming that exists in the prior art, the purpose of this utility model provides a kind of building jack-up system with auto-lock function, and this jack-up system can self-locking when retraction was lost efficacy in jack burst, avoids building to fall after rise.

For achieving the above object, the utility model adopts following technical scheme:

This building jack-up system with auto-lock function is located at the building bottom, comprise jacking pallet and jack, jack is located between jacking pallet and the building, also comprise several pressure anchor self-locking devices, each presses the anchor self-locking device all to be located between jacking pallet and the building, comprise depression bar and the ground tackle that is sheathed on the depression bar, the depression bar upper end fixes with the building bottom, and the ground tackle bottom is fixed on the jacking pallet.

Described ground tackle comprises anchor ring and intermediate plate, and the anchor ring lower end is fixed on the jacking pallet, and insert in the anchor ring intermediate plate lower end, only blocks by producing frictional force upwards with the anchor ring inwall; Intermediate plate is passed in described depression bar lower end, only blocks by producing frictional force upwards with the intermediate plate inwall.

The round table-like structure that described intermediate plate profile is big up and small down, and suitable with the anchor ring inwall.

Described anchor ring inwall is to be provided with indentation and in order to produce the upwards rubbing surface of frictional force, width of nick is 0.2～0.4mm.

Described intermediate plate inwall is to be provided with indentation and in order to produce the upwards rubbing surface of frictional force, width of nick is 0.2～0.4mm.

In technique scheme, building jack-up system with auto-lock function of the present utility model is located at the building bottom, comprise in order to the jacking pallet of bearing load with in order to the jack of jacking, also comprise several pressure anchor self-locking devices, each presses the anchor self-locking device all to be located between jacking pallet and the building, comprise depression bar and the ground tackle that is sheathed on the depression bar, the depression bar upper end fixes with the building bottom, and the ground tackle bottom is fixed on the jacking pallet.In the jacking process, when retraction was lost efficacy in the jack burst, automatically pin depression bar by ground tackle, and load of buildings is transferred on the jacking pallet by depression bar, ground tackle successively, thereby can avoid building to fall after rise, guaranteed the safety of jacking operation, simplified operation and reduced labour intensity.

Description of drawings

Fig. 1 is the structural representation with building jack-up system of auto-lock function of the present utility model;

Fig. 2 is the vertical view of pressure anchor self-locking device of the present utility model;

Fig. 3 is the sectional view along A-A line among Fig. 2;

Fig. 4 is the B portion enlarged drawing among Fig. 3.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

See also shown in Figure 1, building jack-up system 100 with auto-lock function of the present utility model is located at the building bottom, comprise jacking pallet 101 and jack in order to bearing load, jack 102 is located between jacking pallet 101 and the building, in order to the jacking building.In order effectively to prevent leakage of oil or unexpected draining phenomenon to take place at jack 102, and cause its end face to bounce back, and then cause jack 102 catastrophic failures, causing building falls after rise, this jack-up system 100 has also comprised several pressure anchor self-locking devices 110, and each presses anchor self-locking device 110 all to be located between jacking pallet 101 and the building.With the bridge jacking shown in Fig. 1 is example, and a pier stud 1 of bridge adopts cover jack-up system 100 of the present utility model, presses the quantity of anchor self-locking device 110 then to adopt four, is symmetrically set in four sides of jack 102.Please in conjunction with Fig. 2～shown in Figure 4, each is pressed anchor self-locking device 110 to include depression bar 111 and is sheathed on ground tackle on the depression bar 111, and depression bar 111 upper ends fix bottom building, can be with building one lifting; The ground tackle bottom then is fixed on the jacking pallet 101, and is used for pinning automatically the decline of depression bar 111.This ground tackle specifically can be in the following ways, promptly comprise anchor 112 and intermediate plate 113, anchor ring 112 lower ends are fixed on the jacking pallet 101, the round table-like structure that intermediate plate 113 profiles are big up and small down, and it is suitable with anchor 112 inwalls, and insert in the anchor 112 intermediate plate 113 lower ends, blocks only self-locking by producing frictional force upwards with anchor ring 112 inwalls; And intermediate plate 113 is passed in depression bar 111 lower ends, blocks only self-locking by producing frictional force upwards with intermediate plate 113 inwalls.Need to prove at this, only need intermediate plate 113 profiles and the angle of slope of anchor ring 112 inwalls are designed to greater than the angle of friction between intermediate plate 113 and the anchor 112 (relevant with friction factor), no matter make a concerted effort (being the load that depression bar 111 bears) of active force has muchly, can both make supported object keep balance (being locking phenomenon alleged in the mechanics).Certainly, in order to make anchor ring 112 inwalls have enough big frictional force, improve self-lock ability, also anchor ring 112 inwalls can be designed to be provided with indentation 114 and in order to produce the upwards rubbing surface of frictional force, its width of nick is designed to 0.2～0.4mm, thereby make its friction factor reach 3.0～4.0, the efficiency of anchorage of generation is greater than 0.95.And intermediate plate 113 inwalls are designed to be provided with the indentation (not shown) equally and in order to produce the upwards rubbing surface of frictional force, its width of nick is designed to 0.2～0.4mm equally.So, when jack 102 jacking pier studs 1 (building), depression bar 111 depression bars 111 can upwards move freely with pier stud 1, in case jack 102 burst leakage of oils or unexpected draining phenomenon, thereby when causing the end face retraction of jack 102 and pier stud 1 to fall trend after rise, depression bar 111 also produces the trend that moves down with pier stud 1, this moment depression bar 111 be subjected to the upwards frictional force of intermediate plate 113 and automatically card end, the upwards frictional force that intermediate plate 113 then is subjected to anchor ring 112 also moment card end, thereby realize effective self-locking.Meanwhile, the load of jack 102 suffered pier studs 1 is transferred on the depression bar 111 immediately, and the frictional force by 113 of depression bar 111 and intermediate plates with load transfer to intermediate plate 113, simultaneously intermediate plate 113 again by and the frictional force of 112 of anchor rings with load transfer to anchor ring 112, because anchor 112 is fixed on the jacking base, therefore load is transferred on the jacking base safely and reliably the most at last, has avoided the falling of building, has eliminated potential safety hazard.When the jack 102 of repairing or more renewing, when needing to continue jacking, only need the intermediate plate 113 of chucking is upwards carried, make between intermediate plate 113 and the anchor ring 112 and between intermediate plate 113 and the depression bar 111 to get loose, can make depression bar 111 with pier stud 1 jacking.

Owing to adopt jack-up system 100 of the present utility model, can prevent jack 102 burst inefficacies automatically and cause building to fall after rise, and simplify operation greatly that not only reduced labour intensity, but also guaranteed job safety, effect is very remarkable.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (5)

1. the building jack-up system with auto-lock function is located at the building bottom, comprises jacking pallet and jack, and jack is located between jacking pallet and the building, it is characterized in that:

This jack-up system also comprises several pressure anchor self-locking devices, and each presses anchor self-locking device all to be located between jacking pallet and the building, comprises depression bar and the ground tackle that is sheathed on the depression bar, and the depression bar upper end fixes bottom building, and the ground tackle bottom is fixed on the jacking pallet.

2. the building jack-up system with auto-lock function as claimed in claim 1 is characterized in that:

Described ground tackle comprises anchor ring and intermediate plate, and the anchor ring lower end is fixed on the jacking pallet, and insert in the anchor ring intermediate plate lower end, only blocks by producing frictional force upwards with the anchor ring inwall; Intermediate plate is passed in described depression bar lower end, only blocks by producing frictional force upwards with the intermediate plate inwall.

3. the building jack-up system with auto-lock function as claimed in claim 2 is characterized in that:

The round table-like structure that described intermediate plate profile is big up and small down, and suitable with the anchor ring inwall.

4. the building jack-up system with auto-lock function as claimed in claim 2 is characterized in that:

Described anchor ring inwall is to be provided with indentation and in order to produce the upwards rubbing surface of frictional force, width of nick is 0.2～0.4mm.

5. the building jack-up system with auto-lock function as claimed in claim 2 is characterized in that:

Described intermediate plate inwall is to be provided with indentation and in order to produce the upwards rubbing surface of frictional force, width of nick is 0.2～0.4mm.

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