Auxiliary device for hole exterior wall plastering and construction method

Abstract

The application discloses a kind of auxiliary device and construction method for hole outer facade plastering, including support and positioning assembly;The positioning assembly includes positioning disc, limit pawl and locking member, the support is long strip, the positioning disc is limited in any position on the support by locking member;The limit pawl is arranged on the positioning disc, and the limit pawl is driven to stretch or shrink in the circumferential direction of the support;The limit pawl is at least two in circumferential distribution on the support;It further includes auxiliary collar, the auxiliary collar is supported in the preset position of the preset hole outer facade by the limit pawl, and the problems of poor hole construction specification and poor construction appearance quality 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] During the construction of traditional housing construction projects, pre-buried wall sleeves are installed inside the external formwork of the wall, column or beam. There is a method of drilling holes in the formwork to extend the sleeves, but there are problems: (1) The final length of the sleeve cannot be accurately determined (due to deviations in the main construction and plaster thickness). If the sleeve is too short, it will be difficult to finish the plastering. If the sleeve is too long, the part exposed on the plastered surface will affect the appearance and decoration (especially industrial style decoration and simple wall painting); (2) The fixing effect is not good, which is not conducive to demolding; (3) There are too many holes in the formwork, and the workers' irregular operation behavior leads to repeated drilling and consumption of materials, which reduces the turnover of the formwork 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 (sleeves) through walls.

[0004] Taking into account that the reserved and embedded wall sleeves are all set on the inside 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 the sleeve cannot be added at the plaster layer, it may have a certain impact on the subsequent internal pipes.

[0005] There are two common approaches: one is to directly plaster the reserved holes and casings, relying on the skill of the plasterer to close the gap without adding a casing; the other is to cut a casing of the same length as the plaster layer and the same diameter as the pre-buried hole (casing), manually place it in the existing hole (casing), relying on the skill of the plasterer to close the gap and add a casing. This has low casing concentricity, affecting the later installation of internal piping. Both approaches are common on current construction sites, resulting in poor molding quality and seriously affecting the appearance of the construction.

[0006] Therefore, in order to solve the above problems, an auxiliary device and construction method for hole facade plastering are needed to solve the problems of poor hole construction standardization 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 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. The positioning plate is limited to any position on the support member by the locking member.

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

[0011] There are at least two limit claws evenly distributed around 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 them evenly distributed around the central axis of the positioning plate.

[0017] Furthermore, 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.

[0018] Furthermore, the positioning plate is provided with a sliding groove for limiting the limiting claw, and the limiting claw is driven to shift in the sliding 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] This 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 collar to meet the size of the ash layer;

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

[0025] S3. Adjust the positioning claw of the positioning assembly so that the center axis of the support member and the center axis of the hole coincide with each other;

[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 exterior of the hole according to the specified mortar layer size;

[0028] S6. After the plastering is completed, the auxiliary ring is released 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 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 with reference to 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 structural diagram of

[0034] Figure 3 For the present invention Figure 2 Schematic diagram of the structure in the aa direction;

[0035] Figure 4 This 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 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 disc-shaped, and the support member 1 is strip-shaped. The positioning disk 2 is sleeved on the support member 1, and the positioning disk 2 is limited to any position on the support member 1 by the locking member 4; so that it can adapt to holes 5 of different depths according to the length of use, beautify the hole base, and have greater versatility; 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 is adapted to the external thread of the screw, 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 provided 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. 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 around the circumference of the support member 1, so that the central axis of the support member 1 can coincide with the central axis of the hole 5, thereby improving the construction convenience and the flatness and aesthetics of the plastered 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 plaster 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 caused by 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 demoulding, and is more practical.

[0041] In this embodiment, the limiting claws 3 are uniformly distributed around the central axis of the positioning plate 2. In this solution, the positioning plate 2 has three limiting claws 3 uniformly distributed around the circumference, which can ensure structural stability and excellent consistency. It can accurately align the center, realize the addition of sleeves 7 for plastering the five holes and the high-quality closing process, and has high practicality.

[0042] The limiting claw 3 is mounted on the positioning plate 2 via an elastic member 8, and the elastic member 8 has a pre-tightening force that causes the limiting claw 3 to move away from the central axis of the positioning plate 2. The elastic member 8 is a spring in this embodiment, but it can also be a rubber tendon or an elastic band, preferably with self-resetting ability, which will not be described in detail here.

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

[0044] The limiting claw 3 has a positioning end 10 that 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 disc, and the extension arm 12 extends in a radial direction along the disc. 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 holding arm in the radial direction, and is limited to 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 one support member 1, and the structural concentricity is better. The auxiliary ring 6 is set or not on the positioning component located on the rear side of the hole 5 according to actual conditions, and will not be repeated here.

[0047] This 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 prefabricated to meet the size of the ash layer auxiliary collar 6;

[0049] S2. The support member 1 passes through the hole 5 and assembles the positioning assembly and the auxiliary collar 6 on the support member 1;

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

[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 exterior of the hole according to the specified mortar layer size;

[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 kind of plastering auxiliary tool adopts the method of center positioning to achieve the plastering of detailed holes, adding sleeves and high-quality finishing 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 solutions of the present invention and are not limiting. 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 solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An auxiliary device for plastering holes on facades, characterized by: including support members and positioning components; 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. The positioning plate is limited to any position on the support member by the locking member. The limiting claw is provided on the positioning plate, and the limiting claw is driven to extend or retract in the circumferential direction of the support member; There are at least two limit claws evenly distributed around the support member; It also includes an auxiliary collar, which is supported by the limiting claws at a preset position on the outer surface of the preset hole; The limiting claw is mounted 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; The positioning plate is provided with a sliding groove for limiting the limiting claw, and the limiting claw is driven to move in the sliding groove by an elastic member; 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; The limiting claw further 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.

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. 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 5, characterized in that: The construction steps include: S1. Determine the hole size and prefabricate the auxiliary collar to meet the size of the ash layer; S2. Pass the support member through the hole and assemble the positioning assembly and auxiliary ring on the support member; S3. Adjust the positioning claw of the positioning assembly so that the center axis of the support member and the center axis of the hole coincide with each other; 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 exterior of the hole according to the specified mortar layer size; S6. After the plastering is completed, the auxiliary ring is released and the support member with the positioning assembly is removed; S7. Remove the auxiliary collar.

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