CN112412039A

CN112412039A - Vacuum pressure-jump sleeve grouting saturation optimization device

Info

Publication number: CN112412039A
Application number: CN202011432382.7A
Authority: CN
Inventors: 吴庆; 王蔚; 张伟
Original assignee: Jiangsu University of Science and Technology
Current assignee: Jiangsu University of Science and Technology
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-02-26
Anticipated expiration: 2040-12-09
Also published as: CN112412039B

Abstract

The invention discloses a vacuum pressure jumping sleeve grouting saturation optimization device, belonging to the field of civil engineering machinery, comprising a grouting port connector, a pressure recorder, a jumping pressure device and a vacuum pump. On the grouting port to be constructed, the grouting port connector is connected with the vacuum pump through a pipeline, and the pipeline is connected with a pressure recorder and an adjustable pressure jumping device for recording the highest requirements of the pipeline. The beneficial effects of the present invention are as follows: the internal pressure of the grouting area is reduced by means of vacuuming, so that the bubbles mixed in the mortar expand and contract again, and play the role of oscillating the mortar, so that the bubbles gradually move to the surface of the mortar and reduce solidification. Air bubbles in the mortar, which in turn increase the strength of the connection.

Description

Vacuum pressure-jump sleeve grouting saturation optimization device

Technical Field

The invention belongs to the technical field of civil engineering instruments, and particularly relates to a grouting saturation optimization device for a vacuum pressure-jump sleeve.

Background

In recent years, with the acceleration of urbanization construction in China and the enhancement of environmental awareness of people, prefabricated assembled buildings spliced on the site of factory prefabrication are greatly popularized. In the splicing process of prefabricated buildings, the most important is the connection of nodes and joint parts. Conventional attachment means include mechanical attachment, welding, chemical attachment, and the like. The chemical connection adopting the mortar pouring mode is considered to be a connection mode with good economic benefit and reliable connection, and is widely applied to the connection of prefabricated components.

However, when mortar is used for grouting connection, bubbles in the poured mortar are difficult to remove due to low mortar fluidity, narrow working environment, difficulty in vibrating and the like, and the quality of the mortar is affected. Therefore, there is a need for a new type of vibrating device to increase the saturation of the grouting slurry.

Disclosure of Invention

In order to solve the technical problems, the invention provides a grouting saturation optimizing device for a vacuum pressure-jump sleeve, which specifically comprises a grouting connector, a pressure recorder, a pressure-jump device and a vacuum pump, wherein the grouting connector is hermetically connected to a grouting opening to be constructed, the grouting connector is connected with the vacuum pump through a pipeline, and the pipeline is connected with the pressure recorder for recording the highest pressure of the pipeline and the pressure-jump device with adjustable pressure.

Preferably, the grout inlet connector comprises an inner side expansion head, a rubber skirt, a first connecting pipe and a first screwing device, the outer diameter of the front side of the inner side expansion head is smaller than the diameter of the grout inlet, the first screwing device is arranged on the inner side expansion head, the rear end of the inner side expansion head is in threaded connection with the inner side of the first connecting pipe, the rubber skirt is connected to the front end of the first connecting pipe, the rear end of the first connecting pipe is connected with a pipeline, and the outer side of the rubber skirt is provided with tightening marks.

Preferably, the pressure-tripping device is a one-way tripping valve, the one-way tripping valve is connected to the connecting pipe through threads, and a rubber gasket is arranged between the one-way tripping valve and the connecting pipe for sealing.

Preferably, the one-way tripping valve comprises a shell, a second tightening device, a spring, a round ball and a blocking block, wherein the shell is connected to the pipeline through threads, the inner wall of the shell is connected with the outer side surface of the second tightening device through threads, and the second tightening device is screwed by a wrench to enable the shell to move relative to the shell; the blocking block is fixed on the inner side wall of the shell; one end of the spring is fixed on the second tightening device, and the other end of the spring is connected with a ball which abuts against the stop block to seal the check valve.

Preferably, the pressure recorder is adapted to monitor the maximum pressure in the pipeline.

The invention has the technical effects that:

the internal pressure of the grouting area is reduced in a vacuumizing mode, so that bubbles mixed in mortar expand and contract, the mortar is oscillated, the bubbles move to the surface of the mortar gradually, the bubbles in the solidified mortar are reduced, and the connection strength is further enhanced.

Description of the drawings:

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic structural view of the wrench;

FIG. 3 is a schematic structural view of a grouting port connector;

FIG. 4 is a perspective view of a grout port connector;

fig. 5 is a schematic structural diagram of the pressure relief device;

fig. 6 is a perspective view of the jumping pressure device;

fig. 7 (a) is a schematic diagram of a state before being processed by the present apparatus, (b) is a schematic diagram of a state during evacuation, and (c) is a schematic diagram of a state after being processed.

Wherein: 1-grouting outer wall, 2-grouting connector, 3-pressure recorder, 4-pressure-relief device, 5-vacuum pump, 6-pipeline, 21-first connecting pipe, 22-rubber skirt, 23-first tightening device, 24-inner side enlarged head, 41-shell, 42-blocking block, 43-round ball, 44-spring, 45-second tightening device and 46-rubber gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a vacuum jump sleeve grout saturation optimizing apparatus, specifically includes slip casting mouth connector 2, pressure record appearance 3, jump pressure equipment is put 4 and

vacuum pump

5, 2 sealing connection of slip casting mouth connector are on treating the slip casting mouth of being under construction, and slip casting mouth connector 2 passes through pipeline 6 with vacuum pump 5 to be connected, is connected with the pressure record appearance 3 and the jump pressure equipment of pressure adjustable 4 that are used for recording 6 highest pressures of pipeline on pipeline 6. The grouting port connector comprises an inner side expansion head 24, a rubber skirt 22, a first connecting pipe 21 and a first screwing device 23, the outer diameter of the front side of the inner side expansion head 24 is smaller than the diameter of a grouting port, the first screwing device 23 is arranged on the inner side expansion head 24, the rear end of the inner side expansion head 24 is in threaded connection with the inner side of the first connecting pipe 21, the rubber skirt 22 is connected to the front end of the first connecting pipe 21, the rear end of the first connecting pipe 21 is connected with a pipeline 6, and the outer side of the rubber skirt 21 is provided with strangle marks.

The pressure-relief device 4 comprises a shell 41, a second tightening device 45, a spring 44, a round ball 43 and a stop block 42, wherein the shell 41 is connected to the pipeline 6 through threads, the inner wall of the shell 41 is connected with the outer side surface of the second tightening device 45 through threads, and the second tightening device 45 is screwed by a wrench to enable the shell 41 to generate relative displacement; the stop block 42 is fixed on the inner side wall of the shell 41; one end of the spring 44 is fixed on the second tightening device 45, and the other end is connected with a round ball 43, and the round ball 43 is pressed against the stop block 42 to seal the pressure relief device 4. The pressure recorder 3 is used to monitor the maximum pressure in the pipeline 6.

The use method of the vacuum jump sleeve grouting saturation optimization device comprises the steps of firstly plugging a grouting sleeve, creating a vacuum environment, installing an inner side expansion head, completing the assembly of the device as required, rotating a second tightening device 45 to adjust the distance between the second tightening device and a blocking block 42, and further adjusting the compression degree of a spring 44 to achieve the effect of adjusting the maximum pressure limiting; starting the equipment, and jumping and vibrating.

Claims

1. The utility model provides a vacuum jump sleeve grout saturation optimizing apparatus which characterized in that, includes slip casting mouth connector, pressure record appearance, jump pressure equipment and vacuum pump, slip casting mouth connector sealing connection is on waiting the slip casting mouth of being under construction, and the slip casting mouth connector passes through the pipe connection with the vacuum pump, is connected with the pressure record appearance and the jump pressure equipment of pressure adjustable that are used for the highest of record pipeline on the pipeline.

2. The grouting saturation degree optimizing device for the vacuum jump sleeve according to claim 1, wherein the grouting connector comprises an inner enlarged head, a rubber skirt, a first connecting pipe and a first tightening device, the outer diameter of the front side of the inner enlarged head is smaller than the diameter of the grouting opening, the first tightening device is arranged on the inner enlarged head, the rear end of the inner enlarged head is in threaded connection with the inner side of the first connecting pipe, the rubber skirt is connected to the front end of the first connecting pipe, the rear end of the first connecting pipe is connected with a pipeline, and the outer side of the rubber skirt is provided with a tightening mark.

3. The grouting saturation optimization device for the vacuum pressure-jump sleeve according to claim 1, wherein the pressure-jump device is a one-way pressure-jump valve, the one-way pressure-jump valve is connected to the connecting pipe through threads, and a rubber gasket is arranged between the one-way pressure-jump valve and the connecting pipe for sealing.

4. The grouting saturation optimization device for the vacuum jump sleeve according to claim 3, wherein the one-way jump valve comprises a shell, a second tightening device, a spring, a round ball and a blocking block, the shell is connected to the pipeline through threads, the inner wall of the shell is connected with the outer side face of the second tightening device through threads, and the second tightening device is screwed by a wrench to enable the shell to be displaced relative to the shell; the blocking block is fixed on the inner side wall of the shell; one end of the spring is fixed on the second tightening device, and the other end of the spring is connected with a ball which abuts against the stop block to seal the check valve.

5. The vacuum jump sleeve grout saturation optimization device of claim 1, wherein the pressure recorder is used to monitor the maximum pressure in the pipeline.