Outer wall screw hole blocking construction method

Abstract

The invention relates to the technical field of decoration construction, in particular to an outer wall screw hole blocking construction method which comprises the steps that a movable grouting device comprising a mortar box, a mortar hose, a motor and a pressure switch is provided; reaming the outer side of the screw hole of the outer wall; the outer side of the screw hole of the outer wall is blocked, and a mortar cake is made; the threshold value of the pressure switch and the delay time of the time relay are set according to the size of the outer wall screw hole; a spray head of the mortar hose is inserted into an outer wall screw hole; when mortar flows through the motor, a switch of the motor is turned on, the pressure switch is turned off, when the pressure of the mortar flowing through the pressure switch reaches the pressure threshold value, the pressure switch sends a corresponding signal to the time relay, the time relay starts timing when receiving the signal, a circuit is turned off after set delay time is reached, and the motor stops working. The method has the characteristics of time and labor saving, high grouting speed and dense grouting, so that the hidden danger of leakage of the outer wall is greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of decoration and renovation construction, and in particular to a construction method for sealing screw holes in an exterior wall. Background Art

[0002] Before decoration, the screw holes in the exterior wall need to be sealed. When grouting the screw holes in the exterior wall manually, the workers have to use the grouting gun by hand for a long time to grout the screw holes, which is labor-intensive and has low construction efficiency. Summary of the invention

[0003] In view of the above-mentioned problems, the present invention discloses a construction method for plugging screw holes in an external wall, so as to solve the problems of high labor intensity and low construction efficiency in the prior art for plugging screw holes in an external wall.

[0004] A construction method for plugging screw holes in an external wall, comprising the following steps:

[0005] A movable grouting device is provided, the movable grouting device comprising a mortar box, a mortar hose, a motor and a pressure switch, the input end of the motor is communicated with the inner cavity of the mortar box, the output end of the motor is connected to the mortar hose through the pressure switch, the free end of the mortar hose has a nozzle, and the pressure switch is electrically connected to the motor through a time relay;

[0006] Expand the outside of the screw hole on the exterior wall, and remove and clean the PVC pipe in the screw hole on the exterior wall;

[0007] Use waterproof mortar mixed with expansion agent to seal the outside of the screw hole in the external wall and make ash cakes;

[0008] Move the movable grouting device to the inner side of the screw hole near the outer wall, and set the threshold of the pressure switch and the delay time of the time relay according to the size of the screw hole of the outer wall;

[0009] Insert the nozzle of the mortar hose horizontally into the external wall screw hole from the inner side of the external wall screw hole;

[0010] Open the switch of the motor and close the pressure switch. When the pressure of the mortar flowing through the pressure switch reaches the pressure threshold, the pressure switch sends a corresponding signal to the time relay. The time relay starts timing when receiving the signal, and disconnects the circuit after the set delay time is reached, and the motor stops working.

[0011] In some of the embodiments, a pressure gauge is provided on the pressure switch.

[0012] In some of the embodiments, support columns are provided at the four corners of the bottom of the mortar box, and a steering wheel is provided at the bottom of each of the support columns.

[0013] In some of the embodiments, an operation panel is provided on the side wall of the mortar box, and the operation panel is respectively connected to the pressure switch and the time relay.

[0014] In some of the embodiments, a box cover is provided on the top of the mortar box.

[0015] In some of the embodiments, after the PVC pipes in the exterior wall are removed and cleaned, the screw holes in the exterior wall are sprayed or injected with water to moisten the screw holes in the exterior wall.

[0016] In some of the embodiments, the pressure threshold is 2 Mp.

[0017] In some of the embodiments, the delay time of the time relay is set to 3-5s.

[0018] In some of the embodiments, a handle is provided on the top of the rear side of the mortar box.

[0019] Compared with the prior art, the above invention has one of the following advantages or beneficial effects:

[0020] The invention discloses a more convenient and quick external wall screw hole plugging construction method, which has the characteristics of saving time and labor, fast grouting speed and dense grouting, thereby greatly reducing the hidden danger of external wall leakage and improving working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.

[0022] Figure 1 Flow chart of the external wall screw hole plugging construction method in an embodiment of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the external wall screw hole plugging construction in an embodiment of the present invention;

[0024] Among them: 1 is the mortar box; 2 is the motor; 3 is the steering wheel; 4 is the discharge pipe; 5 is the pressure switch; 6 is the pressure gauge; 7 is the mortar hose; 8 is the handle; 9 is the external wall screw hole; 10 is the ash cake. DETAILED DESCRIPTION

[0025] The present invention is further described below with reference to the accompanying drawings and specific embodiments, but is not intended to be a limitation of the present invention.

[0026] like Figure 1 and 2 As shown, this embodiment discloses a method for sealing screw holes in an external wall. Specifically, the method comprises the following steps:

[0027] Step S1, providing a movable grouting device, which includes a mortar box 1, a mortar hose 7, a motor 2 and a pressure switch 5, the input end of the motor 2 is connected to the inner cavity of the mortar box 1, the output end of the motor 2 is connected to the mortar hose 7 through the discharge pipe 4 and the pressure switch 5, the free end of the mortar hose 7 has a nozzle, and the pressure switch 5 is electrically connected to the motor 2 through a time relay (not shown in the figure).

[0028] Specifically, a pressure gauge 6 is provided on the pressure switch 5 so that the pressure data of the pressure switch 5 can be observed in real time through the pressure gauge 6. Support columns are provided at the four corners of the bottom of the mortar box 1, and a steering wheel 3 is provided at the bottom of each support column to facilitate the movement of the movable grouting device. A box cover is provided on the top of the mortar box 1 to facilitate the injection of mortar into the mortar box 1 through the box cover. An operation panel (not shown in the figure) is provided on the side wall of the mortar box 1, and the operation panel is respectively connected to the pressure switch 5 and the time relay to facilitate the setting of the pressure threshold of the pressure switch 5 and the delay time of the time relay through the operation panel. A handle 8 is provided on the top of the rear side of the mortar box 1 for the operator to hold, thereby facilitating the control of the movement of the movable grouting device.

[0029] Step S2, use a machine to expand the outer side of the external wall screw hole 9, after the PVC pipe in the external wall screw hole 9 is removed and cleaned, the residual mortar around the hole is cleaned, and the external wall screw hole 9 is sprayed or injected with water to make the external wall screw hole 9 moist.

[0030] Step S3, using waterproof mortar mixed with expansion agent to seal the outer side of the screw hole 9 of the outer wall, and making ash cake 10.

[0031] Step S4, put the waterproof mortar into the mortar box 1, move the movable grouting device to the inner side of the exterior wall screw hole 9, and set the threshold of the pressure switch 5 and the delay time of the time relay according to the size of the exterior wall screw hole 9; in this embodiment, the pressure threshold of the pressure switch 5 is set to 2Mp, and the delay time of the time relay is 3 to 5s.

[0032] Step S5, inserting the nozzle of the mortar hose 7 into the external wall screw hole 9 horizontally from the inner side of the external wall screw hole 9.

[0033] Step S6, turn on the switch of the motor 2 and close the pressure switch 5. When the pressure of the mortar flowing through the pressure switch 5 reaches the pressure threshold of 2Mp, the pressure switch 5 sends the corresponding signal to the time relay. The time relay starts timing when receiving the signal. It will not disconnect the circuit immediately, but will wait for a preset delay time of 3 to 5 seconds before disconnecting the circuit. At this time, the motor 2 stops working. Then observe whether there is mortar overflow. If there is mortar overflow, it means that the mortar in the screw hole has been filled tightly and the sealing construction of the external wall screw hole 9 is completed. Under normal circumstances, the set pressure threshold and delay time will enable the external wall screw hole 9 to be filled at one time. If no mortar overflow is observed, manual grouting can be used until mortar overflow is observed, which means that the mortar in the screw hole has been filled tightly.

[0034] In summary, the present invention discloses a construction method for sealing screw holes in exterior walls. The movable grouting device adopts a design of a hose, a nozzle, a pressure switch and a pressure gauge, so that the nozzle can be conveniently inserted into the screw hole in the exterior wall, and the pressure threshold of the pressure switch and the delay time of the time relay can be set according to the size of the screw hole in the exterior wall. When the waterproof mortar overflows, it indicates that the mortar in the screw hole has been densely filled, thereby making the grouting of the screw hole more uniform and dense, and the grouting quality is better and the efficiency is higher.

[0035] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0036] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A method for sealing screw holes in an external wall, characterized in that: The steps include: A movable grouting device is provided, the movable grouting device comprising a mortar box, a mortar hose, a motor and a pressure switch, the input end of the motor is communicated with the inner cavity of the mortar box, the output end of the motor is connected to the mortar hose through the pressure switch, the free end of the mortar hose has a nozzle, and the pressure switch is electrically connected to the motor through a time relay; Expand the outside of the screw hole on the exterior wall, and remove and clean the PVC pipe in the screw hole on the exterior wall; Use waterproof mortar mixed with expansion agent to seal the outside of the screw hole in the external wall and make ash cakes; Move the movable grouting device to the inner side of the screw hole near the outer wall, and set the threshold of the pressure switch and the delay time of the time relay according to the size of the screw hole of the outer wall; Insert the nozzle of the mortar hose horizontally into the external wall screw hole from the inner side of the external wall screw hole; Open the switch of the motor and close the pressure switch. When the pressure of the mortar flowing through the pressure switch reaches the pressure threshold, the pressure switch sends a corresponding signal to the time relay. The time relay starts timing when receiving the signal, and disconnects the circuit after the set delay time is reached, and the motor stops working.

2. The external wall screw hole plugging construction method according to claim 1, characterized in that: The pressure switch is provided with a pressure gauge.

3. The external wall screw hole plugging construction method according to claim 1, characterized in that: Support columns are arranged at the four corners of the bottom of the mortar box, and a steering wheel is arranged at the bottom of each of the support columns.

4. The external wall screw hole plugging construction method according to claim 1, characterized in that: An operation panel is arranged on the side wall of the mortar box, and the operation panel is respectively connected to the pressure switch and the time relay.

5. The external wall screw hole plugging construction method according to claim 1, characterized in that: A box cover is arranged on the top of the mortar box.

6. The external wall screw hole plugging construction method according to claim 1, characterized in that: After the PVC pipes in the exterior wall are removed and cleaned, the screw holes in the exterior wall are sprayed or injected with water to make the screw holes in the exterior wall moist.

7. The external wall screw hole plugging construction method according to claim 1, characterized in that: The pressure threshold is 2Mp.

8. The external wall screw hole plugging construction method according to claim 1, characterized in that: Set the delay time of the time relay to 3-5s.

9. The external wall screw hole plugging construction method according to claim 1, characterized in that: A handle is arranged on the top of the rear side of the mortar box.

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