A bolt hole sealing device for shear walls

By designing a shear wall bolt hole sealing device consisting of a piston, cylinder, plaster board, and opening/closing mechanism, the problems of mortar waste and poor construction quality were solved, achieving both environmental protection and improved construction efficiency.

CN224282071UActive Publication Date: 2026-05-26中庆建设有限责任公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中庆建设有限责任公司
Filing Date
2025-05-07
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In building construction, traditional methods of sealing bolt holes in shear walls often result in mortar waste, environmental pollution, and poor construction quality, leading to wasted labor and low efficiency.

Method used

Design a sealing device including a piston, a cylinder, a plastering board, and an opening and closing device. The piston pushes mortar into the bolt hole, and the opening and closing device controls the opening and closing of the discharge port. Combined with the plastering board, the mortar is compacted to achieve a dense seal.

Benefits of technology

It effectively avoids mortar waste, protects the cleanliness of the working environment, improves construction quality and efficiency, and avoids repeated construction.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224282071U_ABST
    Figure CN224282071U_ABST
Patent Text Reader

Abstract

This application discloses a bolt hole sealing device for shear walls, relating to the field of building construction technology. A piston is inserted into the cylinder through a top opening and slides axially within the cylinder. The bottom of the cylinder is fitted onto the top surface of a plastering board. A discharge port is located at the bottom of the cylinder, and an outlet is located on the plastering board corresponding to the discharge port. An opening and closing device is provided at the outlet to control its opening and closing. Storing mortar within the cylinder effectively prevents leakage during construction, avoiding mortar waste. The plastering board is placed against the shear wall, and the piston pushes the mortar in the cylinder into the bolt hole. The opening and closing device then closes the outlet, and the plastering board compacts and smooths the mortar. Under the pressure of the piston injection and the force of the plastering board, the bolt hole is sealed tightly, preventing mortar sagging, protecting the cleanliness of the working environment, improving construction quality, and avoiding repeated construction to increase work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a bolt hole sealing device for shear walls. Background Technology

[0002] In building construction, sealing bolt holes in shear walls is a crucial step. The traditional method involves workers applying expanding cement mortar to the bolt holes using a mortar board and putty knife. However, because mortar needs to be added to the mortar board during construction, it easily falls off, leading to waste and environmental pollution. Using a putty knife to fill the bolt holes is prone to incomplete sealing, causing mortar to flow and compromise construction quality. Repeated application not only wastes labor but also reduces work efficiency.

[0003] Therefore, how to effectively avoid mortar waste and repeated construction, protect the cleanliness of the working environment, and improve construction quality and work efficiency are problems that need to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this application is to provide a bolt hole sealing device for shear walls, which solves the problems of workers applying expanding cement mortar to bolt holes with mortar boards and putty knives, which easily leads to mortar waste and pollution of the working environment, as well as the problem of incomplete sealing causing mortar to flow and fall, resulting in poor construction quality and repeated construction, which not only wastes labor but also reduces work efficiency.

[0005] To solve the above-mentioned technical problems, this application provides a shear wall bolt hole sealing device, including: a piston, a cylinder, a plastering board, and an opening and closing device;

[0006] The piston is inserted into the cylinder through the top opening of the cylinder body, and the piston slides in the inner cavity of the cylinder body along the axial direction of the cylinder body. The bottom of the cylinder body is assembled to the top surface of the plastering board. The cylinder body is used to store mortar. The bottom of the cylinder body is provided with a discharge port. The plastering board is provided with a discharge port at a position corresponding to the discharge port. The discharge port is provided with the opening and closing device, which is used to control the opening and closing of the discharge port.

[0007] In one feasible embodiment, the piston includes a handle, a piston rod, and a rubber head, with a first end of the piston rod connected to the handle and a second end of the piston rod connected to the rubber head, the circumferential surface of the rubber head abutting against the inner wall of the cylinder.

[0008] In one feasible embodiment, a baffle is installed on the top edge of the plastering board, and a U-shaped handle is installed on the baffle, with the opening of the U-shaped handle facing the cylinder.

[0009] In one feasible embodiment, the opening and closing device includes a baffle, a slider, and a push rod. The bottom surface of the plastering board is provided with two sliding grooves, which are located on both sides of the discharge port. The top surface of the baffle is provided with the sliders on both sides. The baffle is slidably connected to the bottom surface of the plastering board through the sliding grooves and the sliders. The push rod is connected to the baffle.

[0010] In one feasible embodiment, a fixing frame is also included, which is respectively connected to the side wall of the cylinder and the top surface of the plasterboard.

[0011] In one feasible embodiment, the side wall of the cylinder is provided with a feeding port, and the feeding port is covered with an opening and closing door.

[0012] In one feasible embodiment, a scale is provided along the length of the piston rod.

[0013] In one feasible embodiment, a pressure sensor is provided on the bottom surface of the rubber head, and a display screen is provided on the top of the piston rod, with the pressure sensor connected to the display screen.

[0014] In one feasible embodiment, the discharge port is detachably connected to the bottom of the cylinder, the plastering board is detachably connected to the cylinder, and there are multiple discharge ports and multiple plastering boards. Each discharge port has a different specification, and the discharge port on each plastering board has a different specification.

[0015] In one feasible embodiment, both the handle and the U-shaped handle are provided with anti-slip parts, and the anti-slip parts are provided with anti-slip textures.

[0016] This application provides a shear wall bolt hole sealing device, comprising: a piston, a cylinder, a plastering board, and an opening and closing device. The piston is inserted into the cylinder through the top opening and slides axially within the cylinder. The bottom of the cylinder is fitted onto the top surface of the plastering board. The cylinder stores mortar, and a discharge port is provided at the bottom of the cylinder. A discharge outlet is provided on the plastering board at a position corresponding to the discharge port, and an opening and closing device is provided at the discharge outlet to control the opening and closing of the discharge outlet. The mortar stored in the cylinder effectively prevents leakage during construction, avoiding mortar waste. The plastering board is placed against the shear wall, and the piston pushes the mortar in the cylinder into the bolt hole. After the mortar is injected into the bolt hole, the opening and closing device closes the discharge outlet, and the plastering board compacts and smooths the mortar. Under the injection pressure of the piston and the force of the plastering board, the bolt hole is sealed tightly, preventing mortar from flowing, protecting the cleanliness of the working environment, improving construction quality, and avoiding repeated construction to improve work efficiency. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A first side view of a shear wall bolt hole sealing device provided in an embodiment of this application;

[0019] Figure 2 A second side view of a shear wall bolt hole sealing device provided in an embodiment of this application;

[0020] Figure 3 A top view of a shear wall bolt hole sealing device provided in an embodiment of this application;

[0021] Figure 4 A bottom view of a shear wall bolt hole sealing device provided in an embodiment of this application;

[0022] Figure 5 This is a structural diagram of a piston provided in an embodiment of this application.

[0023] The attached diagram is labeled as follows: 1-piston, 2-cylinder, 3-plaster board, 4-baffle, 5-U-shaped handle, 6-fixed frame, 7-feeding port, 8-frame, 101-handle, 102-piston rod, 103-rubber head, 301-discharge port. Detailed Implementation

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

[0025] The core of this application is to provide a bolt hole sealing device for shear walls, which can effectively avoid mortar waste and repeated construction, protect the cleanliness of the working environment, and improve construction quality and work efficiency.

[0026] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a first side view of a shear wall bolt hole sealing device provided in an embodiment of this application. Figure 2 This is a second side view of a shear wall bolt hole sealing device provided in an embodiment of this application. Figure 3This is a top view of a shear wall bolt hole sealing device provided in an embodiment of this application. Figure 4 This is a bottom view of a shear wall bolt hole sealing device provided in an embodiment of this application. Figures 1 to 4 As shown, a bolt hole sealing device for a shear wall includes: a piston 1, a cylinder 2, a plastering board 3, and an opening and closing device; the piston 1 is inserted into the cylinder 2 through the top opening of the cylinder 2, and the piston 1 slides in the inner cavity of the cylinder 2 along the axial direction of the cylinder 2; the bottom of the cylinder 2 is fitted onto the top surface of the plastering board 3; the cylinder 2 is used to store mortar; the bottom of the cylinder 2 is provided with a discharge port; the plastering board 3 is provided with a discharge port 301 at a position corresponding to the discharge port; the opening and closing device is provided at the discharge port 301, and the opening and closing device is used to control the opening and closing of the discharge port 301.

[0028] For ease of understanding, the following describes the usage of the shear wall bolt hole sealing device: Align the outlet 301 of the plaster board 3 with the bolt hole on the shear wall, push the piston 1 to drive the mortar in the cylinder 2 into the bolt hole, operate the opening and closing device to close the outlet 301, and then push and pull the plaster board 3 back and forth to compact the mortar in the bolt hole and make the outer surface of the bolt hole smooth. This application embodiment does not specifically limit the shape and size of the cylinder 2, and can be designed according to actual needs; the piston 1 is slidably connected to the cylinder 2 so that the piston 1 slides along the axial direction of the cylinder 2 within the inner cavity of the cylinder 2. The bottom surface of the cylinder 2 is assembled to the top surface of the plaster board 3, which can be done by welding or by a detachable connection. The bottom of the cylinder 2 is provided with a discharge port, which can be a direct opening at the bottom of the cylinder 2 to allow mortar to pass through; or the bottom of the cylinder 2 can be detachably connected to a discharge port, which is connected to the cylinder 2. The plasterboard 3 has multiple discharge ports 301 at positions corresponding to the discharge port. The specifications of the discharge ports 301 and the discharge ports can be completely identical, allowing for perfect alignment. This embodiment does not specifically limit the opening and closing device; it can be a valve-type device, including manual valves and electric valves. Furthermore, this embodiment does not specifically limit the shape of the plasterboard 3; it can be rectangular. A frame 8 is provided around the edge of the plasterboard 3. The dimensions of the frame 8 should match the dimensions of the plasterboard 3 to ensure a tight fit against the wall during construction and prevent mortar overflow. The frame 8 surrounds the edge of the plasterboard 3, forming a stable support system.

[0029] The bolt hole sealing device for shear walls provided in this application includes: a piston 1, a cylinder 2, a plastering board 3, and an opening and closing device; the piston 1 is inserted into the cylinder 2 through the top opening of the cylinder 2, and the piston 1 slides in the inner cavity of the cylinder 2 along the axial direction of the cylinder 2; the bottom of the cylinder 2 is assembled to the top surface of the plastering board 3; the cylinder 2 is used to store mortar; the bottom of the cylinder 2 is provided with a discharge port; the plastering board 3 is provided with a discharge port 301 at a position corresponding to the discharge port; the opening and closing device is provided at the discharge port 301, and the opening and closing device is used to control the opening and closing of the discharge port 301. The mortar is stored inside the cylinder 2, which effectively prevents mortar from leaking out of the cylinder 2 during construction and avoids mortar waste. The plastering board 3 is placed against the shear wall, and the piston 1 is used to push the mortar in the cylinder 2 into the bolt holes. After the mortar is injected into the bolt holes, the opening and closing device is operated to close the discharge port 301. The plastering board 3 is used to compact and smooth the mortar. Under the injection pressure of the piston 1 and the force of the plastering board 3, the bolt holes can be sealed tightly and mortar is not easy to fall, which protects the cleanliness of the working environment and improves the construction quality, avoids repeated construction and improves work efficiency.

[0030] Based on the above embodiments, Figure 5 A structural diagram of a piston provided in an embodiment of this application is shown below. Figure 5 As shown, piston 1 includes handle 101, piston rod 102 and rubber head 103. The first end of piston rod 102 is connected to handle 101, and the second end of piston rod 102 is connected to rubber head 103. The circumferential surface of rubber head 103 abuts against the inner wall of cylinder 2.

[0031] A handle 101 is fixedly connected to the first end of the piston rod 102 to prevent it from loosening or falling off due to external force during use. The handle 101 has an anti-slip part with anti-slip patterns. The anti-slip part is designed to increase friction and prevent slippage. The anti-slip part can be made of rubber, and the anti-slip patterns further increase friction. The anti-slip part can be a diamond pattern, a grid pattern, or stripes, etc. The circumferential surface of the rubber head 103 abuts against the inner wall of the cylinder 2, which can scrape the mortar on the inner wall of the cylinder 2 as cleanly as possible. The rubber material has a certain degree of elasticity and wear resistance, which can reduce friction between the rubber head 103 and the inner wall of the cylinder 2, reduce wear, and extend the service life of the device.

[0032] Based on the above embodiments, in this application embodiment, a baffle 4 is installed on the top edge of the plastering board 3, and a U-shaped handle 5 is installed on the baffle 4, with the opening of the U-shaped handle 5 facing the cylinder 2.

[0033] A baffle 4 is installed on the top edge of the plastering board 3 to prevent mortar from splashing or overflowing during operation, keeping the working environment clean. Simultaneously, the baffle 4 increases the overall stability of the plastering board 3. The opening of the U-shaped handle 5 faces the cylinder 2, allowing for a more natural grip during operation and better control over the direction and force of the plastering board 3's movement. Furthermore, the U-shaped handle 5 can be equipped with anti-slip parts and textured surfaces to increase friction between the handle and the hand, preventing slippage and improving operational stability and safety. The anti-slip parts can be made of materials such as rubber, silicone, or soft plastic, which offer good anti-slip properties and softness, providing a comfortable grip. The anti-slip parts can be integrated directly into the handle through injection molding or attached to the handle surface via adhesive or snap-fit.

[0034] Based on the above embodiments, the opening and closing device of this application includes a baffle, a slider, and a push rod. The bottom surface of the plastering board 3 is provided with two sliding grooves, which are located on both sides of the discharge port 301. The top surface of the baffle is provided with sliders on both sides. The baffle is slidably connected to the bottom surface of the plastering board 3 through the sliding grooves and sliders. The push rod is connected to the baffle.

[0035] In this embodiment, the baffle slides within a groove via a slider, enabling displacement control. This design allows the baffle to cover or open the discharge port 301, thereby controlling the discharge of mortar. A push rod is connected to the baffle; by pushing or pulling the push rod, the movement of the baffle can be easily controlled, further improving operational convenience. Adjusting the pushing or pulling distance of the push rod allows for control of the opening and closing area of ​​the discharge port 301, adapting to different construction needs. For ease of operation, a slotted hole can be made in the plasterboard 3 for the push rod to pass through, allowing the push rod to move along the length of the slotted hole to move the baffle.

[0036] Based on the above embodiments, this application embodiment further includes a fixing frame 6, which is connected to the side wall of the cylinder 2 and the top surface of the plasterboard 3 respectively. Figure 3 As shown, there are four fixing brackets 6. These brackets enhance the connection stability between the cylinder 2 and the plasterboard 3, ensuring that they do not loosen or shift during construction. Both ends of the fixing bracket 6 can be detachably connected to the cylinder 2 and the plasterboard 3 respectively. This detachable connection allows the fixing bracket 6 to be used with cylinders 2 and plasterboard 3 of different sizes or shapes, enhancing the versatility and applicability of the device. The detachable connection methods include bolt connections and snap-fit ​​connections.

[0037] Based on the above embodiments, the side wall of the cylinder 2 in this application embodiment is provided with a feeding port 7, and an opening and closing door is provided at the feeding port 7. The feeding port 7 is used to inject mortar into the interior of the cylinder 2, avoiding the inconvenience that may be caused by adding mortar from the top opening of the cylinder 2. The opening and closing door can be connected to the side wall of the cylinder 2 by a hinge, and then fixed by a buckle or bolt. To ensure sealing, a sealing strip can be provided around the edge of the feeding port 7.

[0038] Based on the above embodiments, this application embodiment provides a scale along the length of the piston rod 102. The scale is used to indicate the position of the piston rod 102 inside the cylinder 2, helping construction personnel to control the amount of mortar injected, avoiding mortar waste, and also avoiding construction quality problems caused by inaccurate injection volume, such as mortar overflow or bolt holes not being completely sealed.

[0039] Based on the above embodiments, in this application embodiment, a pressure sensor is provided on the bottom surface of the rubber head 103, and a display screen is provided on the top of the piston rod 102. The pressure sensor is connected to the display screen. The pressure sensor is used to monitor the pressure of the piston 1 pushing mortar in the cylinder 2 in real time, converting the pressure signal into an electrical signal and transmitting it to the display screen. The display screen is installed on the top of the piston rod 102 and displays the pressure value detected by the pressure sensor in real time, helping construction personnel to control the mortar injection process. Construction personnel can adjust the pushing force of the piston 1 in real time according to the pressure value on the display screen to ensure the uniformity and compactness of the mortar injection. By controlling the pressure, problems such as mortar overflow or incomplete sealing of bolt holes caused by uneven pressure can be avoided. The display screen can record pressure data, which is convenient for construction personnel to analyze and optimize the construction process later. The pressure sensor and the display screen can be connected by wired or wireless means. Wired connection can use a standard sensor connection cable, which can be pre-embedded inside the piston rod 102. Wireless connection can use low-power wireless communication technologies such as Bluetooth.

[0040] Based on the above embodiments, in this application embodiment, the discharge port is detachably connected to the bottom of the cylinder 2, and the plastering board 3 is detachably connected to the cylinder 2. There are multiple discharge ports and multiple plastering boards 3, each with different specifications. The specifications of the outlet 301 on each plastering board 3 are also different. This application embodiment provides multiple discharge ports, one end of which is threaded to the bottom of the cylinder 2, and the other end of which has a through hole. The specifications of the through holes on different discharge ports are different, but each through hole has a matching outlet 301. The discharge port is installed to the bottom of the cylinder 2 via a threaded connection, and the plastering board 3 is installed to the cylinder 2 via a detachable connection. This allows for the selection and combination of appropriate discharge ports and plastering boards 3 according to the specifications of the bolt holes. Different specifications of discharge ports and outlets 301 ensure that mortar can be accurately injected into bolt holes of different diameters, avoiding mortar waste and construction quality problems.

[0041] To facilitate understanding, the specific usage method of the shear wall bolt hole sealing device is described below. Waterproof mortar is filled into the cylinder 2 through the feeding port 7. The opening and closing gate at the feeding port 7 is closed. The discharge port 301 on the plastering board 3 is aligned with the bolt hole on the shear wall. The piston 1 is pressed, and the waterproof mortar is squeezed into the bolt hole through the piston 1. While injecting, the scale on the piston rod 102 is observed. After injection, the opening and closing device is operated to close the discharge port 301. The waterproof mortar is then applied through the plastering board 3. The U-shaped handle 5 is repeatedly pushed and pulled several times to allow the plastering board 3 to rub the bolt hole several times to complete the sealing. The device is then moved to the next bolt hole to continue construction.

[0042] The shear wall bolt hole sealing device provided in this application eliminates the need to add material for each sealing operation, avoiding material loss during material loading and construction, saving materials, and protecting the cleanliness of the working environment. Under the pressure of piston injection and the force of plastering board, the bolt hole can be sealed tightly without causing mortar to flow, protecting the cleanliness of the working environment, improving construction quality, avoiding repeated construction, and improving work efficiency.

[0043] The foregoing has provided a detailed description of a bolt hole sealing device for shear walls provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles thereof, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0044] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A bolt hole sealing device for shear walls, characterized in that, include: Piston (1), cylinder (2), plasterboard (3), and opening / closing device; The piston (1) is inserted into the cylinder (2) through the top opening of the cylinder (2), and the piston (1) slides in the inner cavity of the cylinder (2) along the axial direction of the cylinder (2). The bottom of the cylinder (2) is fitted onto the top surface of the plastering board (3). The cylinder (2) is used to store mortar. The bottom of the cylinder (2) is provided with a discharge port. The plastering board (3) is provided with a discharge port (301) at a position corresponding to the discharge port. The discharge port (301) is provided with the opening and closing device. The opening and closing device is used to control the opening and closing of the discharge port (301).

2. The shear wall bolt hole sealing device according to claim 1, characterized in that, The piston (1) includes a handle (101), a piston rod (102) and a rubber head (103). The first end of the piston rod (102) is connected to the handle (101), and the second end of the piston rod (102) is connected to the rubber head (103). The circumferential surface of the rubber head (103) abuts against the inner wall of the cylinder (2).

3. The shear wall bolt hole sealing device according to claim 2, characterized in that, A baffle (4) is installed on the top edge of the plaster board (3), and a U-shaped handle (5) is installed on the baffle (4), with the opening of the U-shaped handle (5) facing the cylinder (2).

4. The shear wall bolt hole sealing device according to claim 1, characterized in that, The opening and closing device includes a baffle, a slider and a push rod. The bottom surface of the plastering board (3) is provided with two sliding grooves, which are located on both sides of the discharge port (301). The top surface of the baffle is provided with the sliders on both sides. The baffle is slidably connected to the bottom surface of the plastering board (3) through the sliding grooves and the sliders. The push rod is connected to the baffle.

5. The shear wall bolt hole sealing device according to claim 1, characterized in that, It also includes a fixing frame (6), which is connected to the side wall of the cylinder (2) and the top surface of the plaster board (3) respectively.

6. The shear wall bolt hole sealing device according to any one of claims 1 to 5, characterized in that, The side wall of the cylinder (2) is provided with a feeding port (7), and the feeding port (7) is covered with an opening and closing door.

7. The shear wall bolt hole sealing device according to claim 2, characterized in that, A scale is provided along the length of the piston rod (102).

8. The shear wall bolt hole sealing device according to claim 2, characterized in that, The bottom surface of the rubber head (103) is provided with a pressure sensor, and the top of the piston rod (102) is provided with a display screen. The pressure sensor is connected to the display screen.

9. The shear wall bolt hole sealing device according to claim 1, characterized in that, The discharge port is detachably connected to the bottom of the cylinder (2), and the plastering board (3) is detachably connected to the cylinder (2). There are multiple discharge ports and multiple plastering boards (3). Each discharge port has a different specification, and the discharge port (301) on each plastering board (3) has a different specification.

10. The shear wall bolt hole sealing device according to claim 3, characterized in that, Both the handle (101) and the U-shaped handle (5) are provided with anti-slip parts, and the anti-slip parts are provided with anti-slip textures.