Auxiliary device for plastering outer facade of hole and construction method

Abstract

The invention discloses an auxiliary device for plastering of a hole external facade and a construction method. The auxiliary device comprises a supporting piece and a positioning assembly. The positioning assembly comprises a positioning disc, a limiting claw and a locking piece, the supporting piece is in a long strip shape, and the positioning disc is limited to any position on the supporting piece through the locking piece; the limiting claw is arranged on the positioning disc, and the limiting claw is driven to stretch out or retract in the circumferential direction of the supporting piece; the number of the limiting claws is at least two, and the limiting claws are evenly distributed in the circumferential direction of the supporting piece. The device further comprises an auxiliary lantern ring, the auxiliary lantern ring is supported at the preset position of the outer vertical face of the preset hole through the limiting claw, and the problems that the hole construction standardization is poor, and the construction appearance quality is poor can be solved.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to an auxiliary device and a construction method for plastering a hole facade. Background Art

[0002] In traditional house construction, pre-buried wall sleeves are installed in the outer mold of the wall, column or beam. There is a method of drilling holes in the template to extend the sleeve, but there are problems: (1) The final length of the sleeve cannot be accurately determined (due to the deviation of the main construction and the thickness of the plastering). If the sleeve is too short, it is difficult to close the plastering. If the sleeve is too long, the part exposed on the finished plastering surface affects the appearance and decoration (especially industrial style decoration and simple decoration with wall painting); (2) The fixing effect is not good, which is not conducive to demolding; (3) There are too many holes in the template, and the workers' irregular operation behavior leads to repeated drilling of holes and consumables, which reduces the turnover of the template and the holes affect the appearance quality of the concrete.

[0003] There is no standardized approach to the later plastering and finishing of reserved holes (sleevings) through walls.

[0004] Taking into account that the reserved and embedded wall sleeves are all set on the inner side of the formwork during the traditional wall concrete pouring process, when the wall is plastered after the formwork is removed, the sleeve position of the plaster thickness layer cannot be closed; and considering that it is impossible to add sleeves at the plaster layer, it may have a certain impact on the subsequent internal pipes.

[0005] There are two common practices: one is to directly plaster the reserved holes and casings, and close them based on the skill level of the plasterers without adding casings; the other is to cut a casing with the same length as the thickness of the plaster layer and the same diameter as the pre-buried hole (casing) and manually place it in the position of the existing hole (casing), and close it based on the skill level of the plasterers and add casings. The casing has a low concentricity, which affects the later internal pipeline construction. Both practices are common practices on current construction sites, with poor molding quality, which seriously affects the appearance quality of the construction.

[0006] Therefore, in order to solve the above problems, an auxiliary device and construction method for hole facade plastering are needed, which can solve the problems of poor standardization of hole construction and poor construction appearance quality. Summary of the invention

[0007] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide an auxiliary device and a construction method for hole facade plastering, which can solve the problems of poor standardization of hole construction and poor construction appearance quality.

[0008] The auxiliary device and construction method for plastering a hole facade of the present invention include a support member and a positioning assembly;

[0009] The positioning assembly includes a positioning plate, a limiting claw and a locking member, the support member is in the shape of an elongated strip, and the positioning plate is limited at any position on the support member by the locking member;

[0010] The limiting claw is arranged on the positioning plate, and the limiting claw is driven to extend or retract in the circumferential direction of the support member;

[0011] The number of the limiting claws is at least two and is evenly distributed in the circumferential direction of the support member;

[0012] It also includes an auxiliary ring, which is supported by a limiting claw at a preset position on the outer surface of the preset hole.

[0013] Furthermore, the positioning components are divided into two groups which are respectively arranged at the front end and the rear end of the support member.

[0014] Furthermore, the support member is a screw with external threads, and the locking member is a nut with internal threads. The internal threads of the nut and the external threads of the screw are adapted to each other so that the positioning plate is positioned at a specified position of the support member by the locking member.

[0015] Furthermore, the positioning plate is sleeved on the support member, and the central axis of the positioning plate coincides with the central axis of the support member.

[0016] Furthermore, the limiting claws are a plurality of claws evenly distributed around the central axis of the positioning plate.

[0017] Furthermore, the limiting claw is installed on the positioning disk via an elastic member, and the elastic member has a pre-tightening force that causes the limiting claw to move away from the central axis of the positioning disk.

[0018] Furthermore, the positioning plate has a slide groove for limiting the limiting claw, and the limiting claw is driven to shift in the slide groove by an elastic member.

[0019] Furthermore, the limiting claw includes an extension arm connected to the elastic member, and the limiting claw also includes a holding arm connected to the end of the extension arm, and the holding arm is parallel to the central axis of the positioning plate.

[0020] Furthermore, the limiting claw further comprises a limiting arm connected to the rear side of the extension arm, and the limiting arm is formed on the holding arm and protrudes in a direction away from the central axis of the positioning plate;

[0021] The auxiliary collar is limited on the limiting claw by the limiting arm.

[0022] The present solution also discloses a method for plastering a hole facade based on the auxiliary device for plastering a hole facade, comprising the following construction steps:

[0023] S1. Determine the hole size and prefabricate the auxiliary ring that meets the size of the ash layer;

[0024] S2. Pass the support member through the hole and assemble the positioning assembly and the auxiliary ring on the support member;

[0025] S3. Adjust the limit claw of the positioning assembly so that the central axis of the support member coincides with the central axis of the hole;

[0026] S4. By adjusting the locking member of the positioning assembly, the auxiliary ring is limited at the edge of the hole;

[0027] S5. Apply plaster to the outer surface of the hole according to the predetermined size of the mortar layer;

[0028] S6. After the plastering is completed, the auxiliary ring is released from the limit and the support member with the positioning assembly is removed;

[0029] S7. Remove the auxiliary collar.

[0030] The beneficial effects of the present invention are as follows: the present invention discloses an auxiliary device and a construction method for plastering the facade of holes. Through this plastering auxiliary tool, a center positioning method is adopted to realize the plastering of detailed hole openings, adding sleeves and high-quality closing process. It is highly practical, the tool can be reused, the molding quality is improved, and the beautification effect of the base layer of undecorated hole openings is good; and the structure is simple, and production is easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 For the present invention Figure 1 A side view schematic diagram of the structure;

[0034] Figure 3 For the present invention Figure 2 The structural diagram in the aa direction;

[0035] Figure 4 It is a schematic diagram of the structure used in the present invention;

[0036] Figure 5 For the present invention Figure 4 Schematic diagram of the side structure. DETAILED DESCRIPTION

[0037] Figure 1 This is a structural schematic diagram of the present invention. As shown in the figure, the auxiliary device for plastering the facade of a hole in this embodiment includes a support member 1 and a positioning assembly; the positioning assembly includes a positioning plate 2, a limiting claw 3 and a locking member 4.

[0038] In this embodiment, the positioning disk 2 is in the shape of a disk, and the support member 1 is in the shape of a long strip. The positioning disk 2 is sleeved on the support member 1, and the positioning disk 2 is limited at any position on the support member 1 by the locking member 4; so that holes 5 of different depths can be adapted according to the use length, and the hole base layer can be beautified, and the versatility is stronger; in this solution, the support member 1 is a screw with an external thread, and the locking member 4 is a nut with an internal thread. The internal thread of the nut and the external thread of the screw are adapted, so that the positioning disk 2 is positioned at a specified position of the support member 1 by the locking member 4; the central axis of the positioning disk 2 coincides with the central axis of the support member 1;

[0039] In this embodiment, the limiting claw 3 is arranged on the positioning plate 2, and the limiting claw 3 is driven to extend or retract in the circumferential direction of the support member 1; so as to adapt to holes 5 of different sizes and specifications. The purpose of setting the limiting claw 3 is to position the entire device at the set position of the hole 5, and the limiting claw 3 is at least two evenly distributed in the circumferential direction of the support member 1, which can make the central axis of the support member 1 coincide with the central axis of the hole 5, thereby improving the convenience of construction and the flatness and aesthetics of the plastering surface;

[0040] In this embodiment, an auxiliary ring 6 is also included, and the auxiliary ring 6 is supported by the limiting claw 3 at a preset position on the outer facade of the preset hole; the thickness of the auxiliary ring 6 is consistent with or slightly lower than the thickness of the sleeve 7 reserved in the hole 5, and the length of the auxiliary ring 6 is the thickness of the plaster layer; if there is no reserved sleeve 7 in the hole 5, the outer diameter of the auxiliary ring 6 is equal to the inner diameter of the hole 5, the auxiliary ring 6 extends into the hole, and the exposed size is the thickness of the plaster layer, and the limiting claw 3 is positioned in the hole 5 by pressing against the inner wall of the auxiliary ring 6; the setting of the auxiliary ring 6 solves the problem that the thickness of the current plastering surface is difficult to control and the aesthetics of the facade is difficult to construct, and after centering using this solution, the use of the auxiliary ring 6 is detachable, which overcomes the problem of repeated disassembly and filling of the plastered facade of the current hole 5, and the hole 5 of this solution is beautiful and conducive to demolding, and is more practical.

[0041] In this embodiment, the limiting claws 3 are a plurality of claws evenly distributed around the central axis of the positioning plate 2; in this solution, the positioning plate 2 has three limiting claws 3 evenly distributed in the circumferential direction, the structural stability can be satisfied, and the consistency is excellent, the centering can be accurately achieved, and the plastering of the five holes in the details, the addition of the sleeve 7 and the high-quality closing process are realized, and the practicality is high;

[0042] The limiting claw 3 is installed on the positioning plate 2 through an elastic member 8, and the elastic member 8 has a pre-tightening force to make the limiting claw 3 move away from the central axis of the positioning plate 2; the elastic member 8 is a spring in this embodiment, and it can also be a rubber tendon or an elastic band, etc., which has an autonomous reset capability, and will not be described in detail here;

[0043] The positioning plate 2 is provided with a slide groove 9 for limiting the limit claw 3, and the limit claw 3 is driven to shift in the slide groove 9 by the elastic member 8; the setting of the slide groove 9 can make the limit claw 3 retract inward or expand outward according to a predetermined route. In this scheme, the limit claw 3 is retracted by external force and expanded to press against the inner wall of the hole 5 by pre-tightening force. The elastic member 8 cooperates with the setting of the slide groove 9 to make the limit claw 3 stably fixed in the hole 5, so that the difficulty of plastering is reduced and the flatness of the plastering surface is higher;

[0044] The limiting claw 3 has a positioning end 10 which is driven to slide and limit in the slide groove 9, and the positioning end 10 has a driving end 11 extending to the outside of the slide groove 9, so that the maximum stroke of the slide groove 9 to limit the limiting claw 3 is determined, and the operation method is only to control the pressure of the driving end 11. It is simple and convenient to use, and can efficiently complete the qualified construction of the plastered surface.

[0045] More specifically, the limiting claw 3 includes an extension arm 12 connected to the elastic member 8, the elastic member 8 is set in a radial direction along the disk, and the extension direction of the extension arm 12 is also along the radial direction of the disk. The limiting claw 3 also includes a holding arm 13 connected to the end of the extension arm 12, and the holding arm 13 is parallel to the central axis of the positioning disk 2. The holding arm 13 is perpendicular to the extension arm 12 and can adapt to the construction deviation of the hole 5 to ensure the flatness of the plastered facade. The holding arm 13 is close to the facade of the hole 5 and is used to be supported by the elastic member 8 on the inner wall of the hole 5. The limiting claw 3 also includes a limiting arm 14 connected to the rear side of the extension arm 12. The limiting arm 14 is formed on the holding arm 13 and protrudes in the direction away from the central axis of the positioning plate 2. The limiting arm 14 is perpendicular to the holding arm 13, and the extension arm 12, the holding arm 13 and the limiting arm 14 are approximately "Z"-shaped after being connected. The dimensional accuracy of the plaster thickness and flatness can be controlled, and the auxiliary ring 6 is limited on the limiting claw 3 by the limiting arm 14; the limiting arm 14 is used to limit the auxiliary ring 6 to fit on the original structure 002 of the wall, so that the thickness of the plaster layer 001 is accurately determined. When in use, due to the tension of the elastic member 8, the auxiliary ring 6 is limited by the retaining arm in the radial direction, and is limited on the wall in the axial direction of the hole 5 by the limiting arm 14.

[0046] In this embodiment, the positioning components are two groups respectively arranged at the front end and the rear end of the support member 1; the two groups of positioning components share a support member 1, and the structural alignment is better. The auxiliary ring 6 is set or not set on the positioning component located on the rear side of the hole 5 according to actual conditions, which will not be repeated here.

[0047] The present solution also discloses a method for plastering a hole facade based on the auxiliary device for plastering a hole facade, comprising the following construction steps:

[0048] S1. Determine the size of the hole 5 to prefabricate the auxiliary collar 6 to meet the size of the ash layer;

[0049] S2. The support member 1 passes through the hole 5, and the positioning assembly and the auxiliary ring 6 are assembled on the support member 1;

[0050] S3. Adjust the limit claw 3 of the positioning assembly so that the central axis of the support member 1 coincides with the central axis of the hole 5;

[0051] S4. By adjusting the locking member 4 of the positioning assembly, the auxiliary ring 6 is limited at the edge of the hole 5;

[0052] S5. Apply plaster to the outer surface of the hole according to the predetermined size of the mortar layer;

[0053] S6. After the plastering is completed, the auxiliary ring 6 is released and the support member 1 having the positioning assembly is removed;

[0054] S7. Remove the auxiliary collar 6.

[0055] This plastering auxiliary tool adopts the method of center positioning to achieve the plastering of detailed holes, adding sleeves and high-quality closing processes. It is highly practical, the tool can be reused, the molding quality is improved, and the beautification effect of the base layer of undecorated holes is good. It has a simple structure, is easier to produce, and has strong versatility.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An auxiliary device for plastering a hole facade, characterized in that: including a support member and a positioning assembly; The positioning assembly includes a positioning plate, a limiting claw and a locking member, the support member is in the shape of an elongated strip, and the positioning plate is limited at any position on the support member by the locking member; The limiting claw is arranged on the positioning plate, and the limiting claw is driven to extend or retract in the circumferential direction of the support member; The number of the limiting claws is at least two and is evenly distributed in the circumferential direction of the support member; It also includes an auxiliary ring, which is supported by a limiting claw at a preset position on the outer surface of the preset hole.

2. The auxiliary device for plastering a hole facade according to claim 1, characterized in that: The positioning components are divided into two groups, which are respectively arranged at the front end and the rear end of the support member.

3. The auxiliary device for plastering a hole facade according to claim 1, characterized in that: The support member is a screw with external threads, and the locking member is a nut with internal threads. The internal threads of the nut and the external threads of the screw are adapted to each other, so that the positioning plate is positioned at a designated position of the support member by the locking member.

4. The auxiliary device for plastering a hole facade according to claim 1, characterized in that: The positioning plate is sleeved on the support member, and the central axis of the positioning plate coincides with the central axis of the support member.

5. The auxiliary device for plastering a hole facade according to claim 4, characterized in that: The limiting claws are a plurality of claws evenly distributed around the central axis of the positioning plate.

6. The auxiliary device for plastering a hole facade according to claim 5, characterized in that: The limiting claw is installed on the positioning disk through an elastic member, and the elastic member has a pre-tightening force that causes the limiting claw to move away from the central axis of the positioning disk.

7. The auxiliary device for plastering a hole facade according to claim 6, characterized in that: The positioning plate is provided with a slide groove for limiting the limiting claw, and the limiting claw is driven to shift in the slide groove by an elastic member.

8. The auxiliary device for plastering a hole facade according to claim 4, characterized in that: The limiting claw includes a stretching arm connected to the elastic member, and the limiting claw also includes a holding arm connected to the end of the stretching arm, and the holding arm is parallel to the central axis of the positioning plate.

9. The auxiliary device for plastering a hole facade according to claim 8, characterized in that: The limiting claw also includes a limiting arm connected to the rear side of the extension arm, and the limiting arm is formed on the holding arm and protrudes in a direction away from the central axis of the positioning plate; The auxiliary collar is limited on the limiting claw by the limiting arm.

10. A method for plastering a hole facade based on the auxiliary device for plastering a hole facade according to any one of claims 1 to 9, characterized in that: The construction steps include: S1. Determine the hole size and prefabricate the auxiliary ring that meets the size of the ash layer; S2. Pass the support member through the hole and assemble the positioning assembly and the auxiliary ring on the support member; S3. Adjust the limit claw of the positioning assembly so that the central axis of the support member coincides with the central axis of the hole; S4. By adjusting the locking member of the positioning assembly, the auxiliary ring is limited at the edge of the hole; S5. Apply plaster to the outer surface of the hole according to the predetermined size of the mortar layer; S6. After the plastering is completed, the auxiliary ring is released from the limit and the support member with the positioning assembly is removed; S7. Remove the auxiliary collar.

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