Joint patching device for building exterior wall construction

By designing a joint filler for building exterior wall construction, and utilizing a combination of anti-slip block, lower block, lower bolt, lower scraper, upper block, upper bolt, and upper scraper, the problem of residual sealant in existing joint fillers is solved, achieving complete compaction of the joints and an aesthetically pleasing joint filling effect.

CN224396118UActive Publication Date: 2026-06-23TIANYUAN CONSTRUCTION GROUP CO LTD SEVENTH CONSTRUCTION ENGINEERING CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANYUAN CONSTRUCTION GROUP CO LTD SEVENTH CONSTRUCTION ENGINEERING CO
Filing Date
2025-08-27
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing grout applicators are inadequate when pressing the grout, leaving excess grout around the gaps and affecting the appearance.

Method used

A joint filler for building exterior wall construction was designed, comprising a connecting rod, a joint filling mechanism, and a scraping mechanism. By using a combination of anti-slip block, lower block, lower bolt, lower scraper block, upper block, upper bolt, and upper scraper block, the joint filler is compacted and excess filler is scraped off.

Benefits of technology

It improves the compaction effect of the sealant, ensures no residue around the gaps, and enhances the working efficiency and aesthetics of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224396118U_ABST
    Figure CN224396118U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of building construction technology. It discloses a joint filler for exterior wall construction, comprising a connecting rod with a joint filling mechanism and a scraping mechanism on its surface. The joint filling mechanism includes an anti-slip block fixed to the surface of the connecting rod. A lower block is fixed to the surface of the connecting rod, with a lower bolt inserted inside. A lower scraper is fitted onto the surface of the lower block. The scraping mechanism includes an upper block fixed to the surface of the connecting rod, with an upper bolt inserted inside. An upper scraper is fitted onto the surface of the upper block. This device, with its anti-slip block and lower block, working in conjunction with the lower bolt and lower scraper, compacts the sealant in the joints during filling, improving the filling effect. Pressing the outer side of the lower scraper onto the joint further pushes the sealant downwards, enhancing the joint filling effect and improving the device's working efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a joint filler for building exterior wall construction. Background Technology

[0002] Building exterior walls refer to the outer walls of a building. They are key components that separate indoor and outdoor spaces, directly contact the external environment, and undertake multiple functions. Exterior walls are the first line of defense for building performance, and their design needs to take into account climate, structure, and functional requirements to ensure a balance between safety, energy conservation, and human comfort.

[0003] The design of exterior walls requires consideration of various factors. Regarding thermal insulation, there are generally three main construction methods: increasing wall thickness; selecting materials with high porosity and low density; and using a combination of materials. For waterproofing, depending on annual rainfall and basic wind pressure, some areas require overall waterproofing of building exteriors. In terms of energy conservation, exterior walls, as the largest building envelope, play a crucial role in energy-efficient design; for example, in passive solar house designs, exterior walls can be designed as solar collectors. Regarding sound insulation, exterior walls need sufficient capacity to block gas-borne and solid-borne sound transmission, ensuring a quiet indoor environment. Crack treatment is a common problem encountered in the field of building repair and reinforcement. Crack treatment involves grouting, filling, and repairing cracks and fissures in buildings. Currently, building cracks are often caused by concrete dehydration leading to shrinkage, or by uneven expansion and contraction due to temperature differences. For these types of cracks, concrete crack repair is often used. Grout has strong adhesion, low shrinkage, strong color retention, crack-resistant flexibility, good decorative texture, pressure resistance, wear resistance, and mildew resistance. Grout can perfectly repair cracks or damage on the floor surface, and the surface can also be painted. It has good waterproof properties. When exterior walls are constructed, gaps will be generated and need to be filled. However, existing grout fillers still have shortcomings.

[0004] Existing joint sealants are mostly gun-type structures that inject sealant into the gaps. However, this method has its shortcomings. The sealant cannot be compacted in the gaps, leaving gaps. Furthermore, existing devices leave excess sealant around the gaps, affecting the aesthetics. Therefore, we propose a joint sealant for building exterior wall construction to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a joint filler for building exterior wall construction, in order to solve the problem mentioned in the background art that existing devices have insufficient joint filling pressure and that excess joint filler remains around the gaps.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a joint filler for building exterior wall construction, comprising a connecting rod, wherein a joint filling mechanism is provided on the surface of the connecting rod, and a scraping mechanism is provided on the surface of the connecting rod;

[0007] The joint repair mechanism includes an anti-slip block, which is fixed to the surface of a connecting rod. A lower block is fixed to the surface of the connecting rod, a lower bolt is inserted inside the lower block, and a lower scraper is sleeved on the surface of the lower block.

[0008] The scraping mechanism includes an upper block, which is fixed to the surface of the connecting rod. An upper bolt is inserted inside the upper block, and an upper scraping block is fitted onto the surface of the upper block.

[0009] Preferably, the surface of the connecting rod is fixed with anti-slip blocks at equal intervals, and the anti-slip blocks have a ring structure to improve friction.

[0010] Preferably, the lower scraper block has a groove inside that matches the lower block, the lower block is inserted inside the lower scraper block, and the lower bolt is threadedly connected to the lower scraper block, which facilitates the replacement of the lower scraper block.

[0011] Preferably, the lower scraper has a 'U' shape and the upper scraper has a 'U' shape, which makes it easier to deal with corners.

[0012] Preferably, the outer side of the lower scraper has an arc-shaped structure, and the lower scraper and the upper scraper are symmetrically arranged for easy operation.

[0013] Preferably, two sets of upper bolts are inserted inside the upper block, and two sets of lower bolts are inserted inside the lower block, to facilitate the fixing of the connecting rod to the lower scraper block and the upper scraper block.

[0014] Preferably, the upper scraper is fitted onto the surface of the upper block, and the outer side of the upper scraper has a horizontal structure, which facilitates scraping off excess sealant around the gap.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The device is equipped with anti-slip block and lower block, which, together with lower bolt and lower scraper, can compact the sealant in the gap during filling, improve the filling effect, press the outer side of the lower scraper on the gap, and press the sealant in the gap downward, improve the filling effect of the device, and improve the working efficiency of the device.

[0017] (2) The device is equipped with an upper block and an upper bolt, which, together with the upper scraper, allows the device to scrape off excess sealant during the filling process. The upper scraper scrapes off excess sealant on the outside of the gap, which improves the functionality of the device during the filling process and makes the treatment of the gap more aesthetically pleasing, thus improving the working efficiency of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a side-view perspective view of the structure of this utility model;

[0020] Figure 2 This is an exploded view of the structure of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the structure of this utility model;

[0022] Figure 4 This is a front view schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Connecting rod; 2. Seam repair mechanism; 210. Anti-slip block; 220. Lower block; 230. Lower bolt; 240. Lower scraper block; 3. Scraping mechanism; 310. Upper block; 320. Upper bolt; 330. Upper scraper block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 An embodiment of this utility model is provided: a joint filler for building exterior wall construction, including a connecting rod 1, a joint filling mechanism 2 provided on the surface of the connecting rod 1, and a scraping mechanism 3 provided on the surface of the connecting rod 1;

[0026] The seam repair mechanism 2 includes an anti-sliding block 210, which is fixed to the surface of the connecting rod 1. A lower block 220 is fixed to the surface of the connecting rod 1. A lower bolt 230 is inserted inside the lower block 220, and a lower scraper 240 is sleeved on the surface of the lower block 220.

[0027] The scraping mechanism 3 includes an upper block 310, which is fixed to the surface of the connecting rod 1. An upper bolt 320 is inserted inside the upper block 310, and an upper scraper 330 is fitted onto the surface of the upper block 310.

[0028] Anti-slip blocks 210 are fixed at equal intervals on the surface of the connecting rod 1. The anti-slip blocks 210 have a ring structure, which increases the friction of the surface of the connecting rod 1, so that the connecting rod 1 can play an anti-slip role when gripping the connecting rod 1, and improves the stability of the device when gripping it.

[0029] The lower scraper block 240 has a groove inside that matches the lower scraper block 220. The lower scraper block 220 is inserted inside the lower scraper block 240. The lower bolt 230 is threadedly connected to the lower scraper block 240. Two sets of upper bolts 320 are inserted inside the upper block 310, and two sets of lower bolts 230 are inserted inside the lower block 220. By removing the lower bolts 230 and the upper bolts 320, the lower scraper block 240 and the upper scraper block 330 can be disassembled, making it easy to disassemble the device and replace the parts, thus improving the ease of maintenance of the device.

[0030] The lower scraper 240 and the upper scraper 330 both have a U-shaped structure. This design facilitates filling gaps at right angles, making the device more versatile. The outer side of the lower scraper 240 has an arc-shaped structure, which, when pressed against the gap, helps to compact the sealant and improve the filling effect. The lower scraper 240 and the upper scraper 330 are symmetrically arranged, allowing them to be rotated relative to each other for easy access. The upper scraper 330 is fitted onto the surface of the upper block 310, and its outer side has a horizontal structure. When the upper scraper 330 is placed over the gap and scraped, it removes excess sealant, resulting in a more aesthetically pleasing filling.

[0031] Working principle: When the device is working, after injecting sealant into the gaps in the exterior wall, hold the connecting rod 1 and press the arc-shaped part of the lower scraper 240 into the gap, making the lower scraper 240 level with the gap, and press the sealant into the gap to make the sealant more compact. After pressing, flip the connecting rod 1 so that the upper scraper 330 is in contact with the wall outside the gap. Move the connecting rod 1 to scrape off the excess sealant outside the gap, completing the sealant filling effect of the device. The right angle between the lower scraper 240 and the upper scraper 330 allows the device to fill and scrape right-angle gaps, improving the functionality of the device. The above is the complete working principle of this utility model.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended features rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the features be included within this invention. The scope of this invention is defined by its equivalents.

Claims

1. A joint filling device for use in the construction of building facades, comprising a connecting rod (1), characterised in that: The surface of the connecting rod (1) is provided with a seam repair mechanism (2) and a scraping mechanism (3). The seam repair mechanism (2) includes an anti-slip block (210), which is fixed on the surface of the connecting rod (1). A lower block (220) is fixed on the surface of the connecting rod (1). A lower bolt (230) is inserted inside the lower block (220), and a lower scraper (240) is sleeved on the surface of the lower block (220). The scraping mechanism (3) includes an upper block (310), which is fixed to the surface of the connecting rod (1). An upper bolt (320) is inserted inside the upper block (310), and an upper scraper (330) is sleeved on the surface of the upper block (310).

2. The joint tape applicator of claim 1, wherein: The surface of the connecting rod (1) is fixed with anti-slip blocks (210) at equal intervals, and the anti-slip blocks (210) are ring-shaped.

3. The joint tape applicator of claim 1, wherein: The lower scraper block (240) has a groove inside that matches the lower block (220). The lower block (220) is inserted inside the lower scraper block (240). The lower bolt (230) is threadedly connected to the lower scraper block (240).

4. The wall joint sealant for building construction according to claim 1, characterized in that: The lower scraper (240) has a 'U' shape, and the upper scraper (330) has a 'U' shape.

5. The joint filler for building exterior wall construction according to claim 1, characterized in that: The outer side of the lower scraper (240) has an arc-shaped structure, and the lower scraper (240) and the upper scraper (330) are symmetrically arranged.

6. The wall joint filler for building construction according to claim 1, characterized in that: Two sets of upper bolts (320) are inserted inside the upper block (310), and two sets of lower bolts (230) are inserted inside the lower block (220).

7. The wall joint filler for building construction according to claim 1, characterized in that: The upper scraper (330) is fitted onto the surface of the upper block (310), and the outer side of the upper scraper (330) is a horizontal structure.