Novel cement mortar joint filling tool

By introducing automated control and support structures into the cement mortar grouting tool, the problems of inconvenience in moving and fixing existing tools and the difficulty in material discharge control are solved, achieving an efficient and smooth gap filling effect.

CN224213095UActive Publication Date: 2026-05-08SHANXI FIRST CONSTR GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI FIRST CONSTR GROUP
Filing Date
2025-02-21
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing cement mortar filling tools lack support and pushing structures, making them inconvenient to move and fix, difficult to control manual material discharge, and inconvenient to operate.

Method used

The design incorporates a sealant cylinder, sleeve, extrusion piston, lead screw, and drive motor, combined with casters and support frame, to achieve automated control of cement mortar discharge and gap filling. It is also equipped with a smoothing mechanism to ensure a smooth sealant application.

Benefits of technology

It enables automated discharge of cement mortar and filling of gaps, reduces operational difficulty, improves the smoothness and efficiency of filling, and reduces labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of joint filling tools, and discloses a novel cement mortar joint filling tool which comprises a joint filling cylinder, a sleeve is arranged on the outer side of the joint filling cylinder in a sleeved mode, a smoothing mechanism is arranged at the bottom of the sleeve, an extrusion piston is arranged in the joint filling cylinder, a lead screw is arranged in the extrusion piston in a threaded and sleeved mode, and a driving motor is arranged at the top of the lead screw. And a movable supporting mechanism is arranged on the outer sides of the joint filling cylinder and the sleeve. The driving motor drives the lead screw to rotate, so that the lead screw drives the extrusion piston to move in the gap filling cylinder in a threaded mode, the extrusion piston slides in the gap filling cylinder to discharge materials, and therefore the amount of discharged cement mortar can be conveniently controlled, and meanwhile in the gap filling process, the supporting frame and the universal wheels are arranged on the outer side of the gap filling cylinder. The joint filling cylinder can be conveniently supported and moved during joint filling, and the supporting frame can be unfolded and folded, so that the joint filling cylinder is convenient to use and does not occupy space.
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Description

Technical Field

[0001] This utility model relates to the field of grouting tools, and in particular to a novel cement mortar grouting tool. Background Technology

[0002] In engineering construction, there are often situations where cement mortar is needed to fill gaps between door and window frames and walls, mortar joints in masonry, grouting of curbs, and other areas. In traditional construction methods, mortar is usually manually stuffed into the gaps and compacted. However, this method is prone to quality problems such as hollow areas and incomplete filling during construction. In addition, the operating space is usually small when filling gaps, making it difficult for workers to enter, resulting in construction difficulties and inconvenience.

[0003] Patent document CN218406678U discloses a cement mortar caulking device, including a pipe body. A valve push rod is inserted inside the pipe body, with its top surface extending through the pipe body to the outside. An extension sleeve is threaded onto the bottom end of the pipe body, and a nozzle is glued to the bottom end of the extension sleeve. Rubber sheets are fixedly connected to the bottom end of the pipe body in an annular pattern at equal intervals. Connecting plates are symmetrically fixedly connected to the bottom end surface of the pipe body in an annular pattern at equal intervals. A passive plate is hinged to the side of every two sets of connecting plates that are close to each other. The passive plate's surface near the rubber sheet... With a fixed connection and abutment block, this utility model improves the existing cement mortar grouting device through its structure. During use, the device can uniformly control the flow rate and velocity of cement mortar, and can conveniently control the device to stop spraying cement mortar in real time during the grouting process, making it more convenient in actual use. The above-mentioned technical solutions lack supporting and pushing structures during use, which makes the movement and fixing of the pipe body very inconvenient, and its manual discharge method makes it difficult to control the cement mortar being filled. Therefore, we provide a new type of cement mortar grouting tool to improve this. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a novel cement mortar filling tool, which aims to improve the lack of support and pushing structure in the prior art, which makes the movement and fixing of the pipe body very inconvenient, and the manual discharge method makes it difficult to control the filling of cement mortar.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel cement mortar caulking tool, comprising a caulking cylinder, a sleeve sleeved on the outside of the caulking cylinder, a smoothing mechanism at the bottom of the sleeve, a compression piston inside the caulking cylinder, a screw threaded inside the compression piston, a drive motor at the top of the screw, and a movable support mechanism on the outside of the caulking cylinder and the sleeve.

[0006] The movable support mechanism includes a bracket and casters. The casters are fixedly installed at the bottom of the bracket, and the other end of the bracket is fixedly connected to the sleeve. A support frame is provided on the outside of the sealant tube. Both ends of the support frame are provided with concave rods, and the outside of the concave rods are provided with an anti-slip coating. The end of the support frame connected to the sealant tube is rotatably connected.

[0007] As a further description of the above technical solution:

[0008] The smoothing mechanism includes a telescopic rod and a triangular plate. The triangular plate is fixedly installed at the bottom of the telescopic rod, and a gathering plate is installed at the bottom of the triangular plate. Multiple connecting springs are installed between the triangular plate and the gathering plate. The top of the telescopic rod is fixedly connected to a sleeve.

[0009] As a further description of the above technical solution:

[0010] The inlet end of the sealant cylinder is threaded with a connecting cover, and the drive motor is fixedly connected to the connecting cover through a shock-absorbing pad.

[0011] As a further description of the above technical solution:

[0012] The outlet end of the sealant cylinder is fixedly provided with a corrugated pipe, and the bottom thread of the screw is fixedly provided with an anti-detachment head.

[0013] As a further description of the above technical solution:

[0014] The sealant tube is made of transparent plastic and has a sun-protective film on its outer side. Handrails are symmetrically arranged on the outer side of the sealant tube.

[0015] As a further description of the above technical solution:

[0016] A control component is fixedly installed on the top of the sealant cylinder, and the control component includes a controller panel and a battery.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are as follows:

[0018] 1. In this utility model, the drive motor drives the lead screw to rotate, which in turn drives the extrusion piston to move in the threaded motion inside the grouting cylinder. This allows the extrusion piston to slide and discharge material inside, thus facilitating the control of the amount of cement mortar discharged. At the same time, during the grouting process, the support frame and casters on the outside of the grouting cylinder facilitate the support and movement of the grouting cylinder during grouting. Furthermore, the support frame can be unfolded and retracted, making it convenient to use and space-saving.

[0019] 2. In this utility model, by setting a telescopic rod to drive the triangular plate and the gathering plate to move up and down below the filling cylinder, it can gather and smooth the cement mortar overflowing from the gap according to the needs, so that the filling will be more flat. At the same time, under the elastic drive of the connecting spring, the gathering plate can automatically adapt to the uneven road surface environment. Attached Figure Description

[0020] Figure 1 A three-dimensional view of the overall structure of a novel cement mortar caulking tool proposed in this utility model;

[0021] Figure 2 A three-dimensional view showing the overall structural changes of a novel cement mortar grouting tool proposed in this utility model;

[0022] Figure 3 A perspective view of the connection structure of the telescopic rod, triangular plate, connecting spring and gathering plate of a novel cement mortar caulking tool proposed in this utility model;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the grouting cylinder of a novel cement mortar grouting tool proposed in this utility model.

[0024] Legend:

[0025] 1. Sealant tube; 2. Sleeve; 3. Extrusion piston; 4. Lead screw; 5. Drive motor; 6. Bracket; 7. Casters; 8. Support frame; 9. Concave rod; 10. Telescopic rod; 11. Triangular plate; 12. Gathering plate; 13. Connecting spring; 14. Connecting cover; 15. Corrugated pipe; 16. Anti-detachment head; 17. Handrail; 18. Control components. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1-4 An embodiment of this utility model is provided: a novel cement mortar caulking tool, including a caulking cylinder 1, a sleeve 2 sleeved on the outside of the caulking cylinder 1, a smoothing mechanism at the bottom of the sleeve 2, a compression piston 3 inside the caulking cylinder 1, a screw 4 threaded inside the compression piston 3, a drive motor 5 at the top of the screw 4, and a movable support mechanism on the outside of the caulking cylinder 1 and the sleeve 2.

[0028] The movable support mechanism includes a bracket 6 and casters 7. Casters 7 are fixedly installed at the bottom of the bracket 6. The other end of the bracket 6 is fixedly connected to the sleeve 2. A support frame 8 is provided on the outside of the sealant cylinder 1. Both ends of the support frame 8 are provided with concave rods 9, and the outside of the concave rods 9 is provided with an anti-slip coating. The end of the support frame 8 connected to the sealant cylinder 1 is rotatably connected.

[0029] In this embodiment: the universal wheels 7 can drive the grouting cylinder 1 to move outside the gap. The support frame 8 rotates at the bottom of the grouting cylinder 1, allowing the concave rod 9 at the bottom of the support frame 8 to stand on the ground. The concave rod 9 at the top of the support frame 8 abuts against the bottom of the grouting cylinder 1, thus forming a limit and assisting the grouting cylinder 1 to be supported on the ground. This allows the grouting cylinder 1 to be supported and fixed in deep gaps that require long-term application of the main material, eliminating the need for manual operation and greatly reducing the workload of personnel. The support frame 8 can be flipped over and fitted onto the bottom of the grouting cylinder 1 for storage, making it convenient to use and space-saving. The drive motor 5 drives the lead screw 4 to rotate, allowing the lead screw 4 to drive the extrusion piston 3 to move inside the grouting cylinder 1, so that the extrusion piston 3 can slide and discharge material inside, thus facilitating the control of the amount of cement mortar discharged.

[0030] The smoothing mechanism includes a telescopic rod 10 and a triangular plate 11. The triangular plate 11 is fixedly installed at the bottom of the telescopic rod 10. A gathering plate 12 is installed at the bottom of the triangular plate 11. Multiple connecting springs 13 are installed between the triangular plate 11 and the gathering plate 12. The top of the telescopic rod 10 is fixedly connected to the sleeve 2.

[0031] In this embodiment: by setting the telescopic rod 10, its length can be adjusted, and at the same time, the gathering plate 12 is driven to contact the ground gap. The gathering plate 12 can gather and smooth the cement mortar overflowing from the gap, making the filling smoother and saving cement mortar. By setting the connecting spring 13, the gathering plate 12 can be driven to make elastic contact with the ground, so that the gathering plate 12 can automatically adapt to the uneven road surface environment.

[0032] The inlet end of the sealant cylinder 1 is threaded with a connecting cover 14, and the drive motor 5 is fixedly connected to the connecting cover 14 through a shock-absorbing pad.

[0033] In this embodiment: by setting a shock-absorbing pad, the vibration generated by the drive motor 5 during operation can be prevented from being transmitted to the handrail 17, which would affect the workers' caulking work. By setting a connecting cover 14, the inlet end of the caulking cylinder 1 can be quickly opened, making it convenient to fill the inside.

[0034] A corrugated pipe 15 is fixedly installed at the outlet end of the sealant cylinder 1, and an anti-detachment head 16 is fixedly installed at the bottom thread of the screw rod 4.

[0035] In this embodiment: by setting the corrugated pipe 15, the length and angle can be adjusted, so that the joint filling cylinder 1 can fill the road surface with different degrees of depression, and can also avoid the phenomenon of cement mortar splashing and segregation due to excessive falling height. The anti-detachment head 16 can prevent the extrusion piston 3 from detaching from the screw 4, and can also separate the anti-detachment head 16 from the screw 4 through the reverse thread, so as to facilitate the replacement of the extrusion piston 3.

[0036] The sealant tube 1 is made of transparent plastic and has a sun-protective film on the outside. Handrails 17 are symmetrically arranged on the outside of the sealant tube 1.

[0037] In this embodiment: by making the joint filler tube 1 a transparent plastic material, it is easy for staff to see the volume of cement mortar inside. By setting a sun-proof film on the outside of the joint filler tube 1, it is possible to prevent the cement mortar inside the joint filler tube 1 from hardening due to exposure to the sun. By setting a handrail 17, it is easy for staff to hold the tube.

[0038] A control component 18 is fixedly installed on the top of the sealant cylinder 1, and the control component 18 includes a controller panel and a battery.

[0039] In this embodiment, the drive motor 5 can be controlled and powered by the control component 18.

[0040] The implementation principle of this novel cement mortar caulking tool is as follows: During use, the universal wheels 7 at both ends of the caulking cylinder 1 are pushed by the handle 17 to move outside the gap, causing the caulking cylinder 1 to move the corrugated pipe 15 above the gap. When the caulking cylinder 1 needs support, the support frame 8 can be rotated, causing the concave rod 9 at the bottom of the support frame 8 to move away from the caulking cylinder 1 and stand upright on the ground. Simultaneously, the concave rod 9 at the top of the support frame 8 abuts against the bottom of the caulking cylinder 1, thus forming a limit and assisting in supporting the caulking cylinder 1 on the ground. No manual operation is required, greatly reducing the workload of personnel. Furthermore, the support frame 8 can be flipped over and fitted onto the bottom of the caulking cylinder 1 for storage, making it convenient to use and space-saving. During caulking, the drive motor 5 can be turned on, causing it to rotate the lead screw 4, which in turn drives the extrusion piston 3 inside the caulking cylinder 1. The screw thread allows the piston 3 to slide and discharge material internally, thus facilitating control of the amount of cement mortar discharged. Simultaneously, during the grouting process, the corrugated pipe 15 can be pulled to adjust its length and angle, enabling the grouting cylinder 1 to fill gaps in road surfaces with varying degrees of depression. This also prevents excessive cement mortar drop, which could cause splashing and segregation. During grouting, the length of the telescopic rod 10 can be adjusted according to usage requirements, causing it to move the gathering plate 12 downwards and into contact with the ground gap. As the caster wheel 7 pushes the grouting cylinder 1 across the gap to fill the material, it also simultaneously gathers and smooths any overflowing cement mortar from the gap, resulting in a smoother surface after grouting. Furthermore, the elasticity of the connecting spring 13 allows the gathering plate 12 to automatically adapt to uneven road surfaces.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel cement mortar caulking tool, comprising a caulking cylinder (1), characterized in that: The outer side of the sealant cylinder (1) is fitted with a sleeve (2), the bottom of the sleeve (2) is provided with a smoothing mechanism, the inside of the sealant cylinder (1) is provided with a compression piston (3), the inside of the compression piston (3) is threaded with a screw (4), the top of the screw (4) is provided with a drive motor (5), and the outer side of the sealant cylinder (1) and the sleeve (2) is provided with a movable support mechanism. The movable support mechanism includes a bracket (6) and casters (7). The casters (7) are fixedly installed at the bottom of the bracket (6). The other end of the bracket (6) is fixedly connected to the sleeve (2). A support frame (8) is provided on the outside of the sealant cylinder (1). Both ends of the support frame (8) are provided with concave rods (9), and the outside of the concave rods (9) is provided with an anti-slip coating. The end of the support frame (8) connected to the sealant cylinder (1) is rotatably connected.

2. The novel cement mortar caulking tool according to claim 1, characterized in that: The smoothing mechanism includes a telescopic rod (10) and a triangular plate (11). The bottom of the telescopic rod (10) is fixedly provided with the triangular plate (11), and the bottom of the triangular plate (11) is provided with a gathering plate (12). Multiple connecting springs (13) are provided between the triangular plate (11) and the gathering plate (12). The top of the telescopic rod (10) is fixedly connected to the sleeve (2).

3. The novel cement mortar caulking tool according to claim 1, characterized in that: The inlet end of the sealant cylinder (1) is threaded with a connecting cover (14), and the drive motor (5) is fixedly connected to the connecting cover (14) through a shock-absorbing pad.

4. The novel cement mortar caulking tool according to claim 1, characterized in that: The outlet end of the sealant cylinder (1) is fixedly provided with a corrugated pipe (15), and the bottom thread of the screw (4) is fixedly provided with an anti-detachment head (16).

5. A novel cement mortar caulking tool according to claim 1, characterized in that: The sealant tube (1) is made of transparent plastic and has a sun protection film on the outside. Handrails (17) are symmetrically arranged on the outside of the sealant tube (1).

6. A novel cement mortar caulking tool according to claim 1, characterized in that: The top of the sealant tube (1) is fixedly provided with a control component (18), and the control component (18) includes a controller panel and a battery.

Citation Information

Patent Citations

  • Cement mortar joint filling device

    CN218406678U