A quick starting device for a preset fixing hole of a building construction

Abstract

The utility model belongs to building construction technical field discloses a kind of building construction preset fixed hole quick use device, including plugging bolt, further include sleeve assembly for forming fixed hole in pre-burying in concrete base material and dismounting tool for providing electric power and pulling force, before use, plugging bolt is installed in sleeve assembly end head;Sleeve assembly includes sleeve body, sleeve body middle is provided with blind hole, and the inner thread is provided in blind hole close to export end, annular contact is provided on the inner wall in blind hole middle, spring contact is provided in blind hole top end, sleeve body adopts polyethylene material, and inlay has heating coil, and the both ends of heating coil are respectively connected annular contact and spring contact. Local softening is carried out to sleeve body (polyethylene material) by heating coil, and the risk of concrete cracking, edge collapse is greatly reduced, and the integrity of building structure is protected;Simplify operation into "screw in-power on-pull out" three simple steps, and the use time of single fixed hole is greatly shortened.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a device for quickly activating pre-set fixing holes in building construction. Background Technology

[0002] In building construction, multiple tension anchor holes are pre-installed in the concrete for convenient subsequent equipment installation. These holes are sealed before use to prevent contaminants from entering, and can be removed directly upon activation. In existing technology, the sealing material is typically a threaded polyethylene sleeve. To remove it, a heated threaded rod is screwed in to melt the sleeve, which is then pulled out after solidification. The bottom hole is then enlarged to increase the anchor's bearing area.

[0003] However, the above operation requires multiple steps and is very cumbersome. It is also easy to cause the inlet end of the sleeve to melt. Since the blind head is deep into the concrete substrate and cannot be heated, a temperature difference is formed between the front and back. When pulling it out, it is easy to break, which will result in the sleeve not being able to be completely removed or damage to the inner wall of the hole. Therefore, a new device needs to be designed. Utility Model Content

[0004] The purpose of this utility model is to provide a device for quickly activating pre-set fixing holes in building construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-activation device for pre-set fixing holes in building construction includes a sealing bolt, a sleeve assembly for forming fixing holes pre-embedded in concrete substrate, and a disassembly tool for providing power and pull-out force. Before activation, the sealing bolt is installed at the end of the sleeve assembly. The sleeve assembly includes a sleeve body with a blind hole in the middle. The blind hole has an internal thread near the outlet end, an annular contact on the inner wall of the blind hole, and a spring contact at the top of the blind hole. The sleeve body is made of polyethylene material and has a heating coil embedded inside. The two ends of the heating coil are connected to the annular contact and the spring contact, respectively. The disassembly tool includes a main body with a connecting stud at one end. An annular electrode is provided at the end of the connecting stud. An extension rod is provided in the middle of the connecting stud, and an electrode plate is provided at the top of the extension rod. The annular electrode and the electrode plate are insulated from each other. A switch button is provided on the main body, and a battery compartment cover is provided at the end of the main body away from the connecting stud.

[0007] Furthermore, the blind end of the sleeve body is designed as an outward protrusion structure with a diameter larger than that of the sleeve body.

[0008] Furthermore, the outer surface of the sleeve body is provided with a mesh pattern.

[0009] Furthermore: A display screen is installed near the switch button on the main body, and a temperature sensor is installed on the extension rod. The display screen, temperature sensor, switch button, ring electrode and electrode plate are electrically connected to the main body.

[0010] Furthermore: the ring electrode is a conical ring with a cone angle of 60 to 65 degrees.

[0011] Furthermore, the heating coils are concentrated at the blind end of the sleeve body.

[0012] Compared with existing technologies, the beneficial effects are:

[0013] By using a heating coil to locally soften the sleeve body (polyethylene material) instead of subjecting the hard concrete substrate to violent damage, the risk of concrete cracking and chipping is greatly reduced, protecting the integrity of the building structure. The complex drilling and cleaning operations are simplified to three simple steps: "screw in - apply power - pull out," making operation extremely convenient and significantly shortening the activation time of a single fixing hole. The protruding structure at the top of the sleeve body automatically enlarges the hole within the fixing hole upon pull-out, eliminating the need for subsequent hole enlargement or treatment, achieving "pull-out and use," further accelerating the installation speed of subsequent anchor bolts. The dedicated disassembly tool integrates power supply, control, and heating... The heating, pulling, and status display functions eliminate the need to carry and switch between multiple tools, improving the continuity and convenience of construction. The use of a ring electrode and ring contact, and an electrode plate and spring contact, automatically establishes a stable and reliable circuit connection while the connecting stud is screwed in, ensuring effective power transmission to the heating coil. Because the sleeve is pulled out entirely in a softened state, the resulting fixing hole has a smooth inner wall and precise dimensions, providing an ideal installation environment for the anchor rod and helping to ensure the final anchoring strength. The activation of the pre-embedded sleeve is transformed from a laborious, highly skilled, and error-prone process into a fast, simple, controllable, and high-quality standardized operation. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a structural schematic diagram of a quick-activation device for pre-set fixing holes in building construction, as described in this utility model.

[0016] Figure 2 This is a cross-sectional view of the sleeve assembly and sealing bolt connection of the pre-set fixing hole quick activation device for building construction described in this utility model;

[0017] Figure 3 This is an external view of the sleeve assembly and sealing bolt connection of the pre-set fixing hole quick activation device for building construction described in this utility model;

[0018] Figure 4 This is a schematic diagram of the disassembly tool for the quick-activation device for pre-set fixing holes in building construction, as described in this utility model.

[0019] In the attached drawings, the following are the reference numerals: 1. Sleeve assembly; 2. Disassembly tool; 3. Concrete substrate; 4. Sealing bolt; 11. Sleeve body; 12. Internal thread; 13. Blind hole; 14. Annular contact; 15. Heating coil; 16. Spring contact; 17. Mesh grid; 21. Main body; 22. Connecting stud; 23. Extension rod; 24. Annular electrode; 25. Temperature sensor; 26. Display screen; 27. Switch button; 28. Electrode plate; 29. ​​Battery compartment cover. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-4 A quick activation device for pre-set fixing holes in building construction includes a sealing bolt 4, a sleeve assembly 1 for pre-embedding in a concrete substrate 3 to form a fixing hole, and a disassembly tool 2 for providing power and pulling force. Before activation, the sealing bolt 4 is installed at the end of the sleeve assembly 1.

[0024] In this embodiment: the sleeve assembly 1 includes a sleeve body 11, a blind hole 13 is provided in the middle of the sleeve body 11, an internal thread 12 is provided near the outlet end of the blind hole 13, an annular contact 14 is provided on the inner wall of the middle of the blind hole 13, and a spring contact 16 is provided at the top of the blind hole 13. The sleeve body 11 is made of polyethylene material and has a heating coil 15 embedded inside. The two ends of the heating coil 15 are respectively connected to the annular contact 14 and the spring contact 16. The blind end of the sleeve body 11 is set as an outward protrusion structure with a diameter larger than the diameter of the sleeve body 11. The outer surface of the sleeve body 11 is provided with a mesh 17 to prevent water seepage from the gaps caused by the solidification shrinkage of the concrete substrate 3. The heating coils 15 are concentrated at the blind end of the sleeve body 11. Before use, the sleeve... The sleeve body 11 is embedded in the concrete substrate 3 with a flush surface. The sleeve body 11 is sealed by the sealing bolt 4 connected by the internal thread 12 to prevent dirt from entering. When in use, the sealing bolt 4 is unscrewed and the connecting stud 22 is screwed in. Electricity is transmitted to the heating coil 15 through the annular electrode 24, annular contact 14, electrode plate 28 and spring contact 16. The heating coil 15 converts electricity into heat, which softens the sleeve body 11. The main body 21 is pulled to pull the sleeve body 11 out of the concrete substrate 3, forming a fixing hole for the installation and fixing of the anchor rod. Since the top of the sleeve body 11 is an outward protruding structure, an enlarged hole is formed in the fixing hole, avoiding secondary processing and further speeding up the installation and use of the anchor rod.

[0025] In this embodiment: the disassembly tool 2 includes a main body 21. A connecting stud 22 is provided at one end of the main body 21. An annular electrode 24 is provided at the end of the connecting stud 22. An extension rod 23 is provided in the middle of the connecting stud 22. An electrode plate 28 is provided at the top of the extension rod 23. The annular electrode 24 and the electrode plate 28 are insulated from each other. A switch button 27 is provided on the main body 21. A battery compartment cover 29 is provided at the end of the main body 21 away from the connecting stud 22. A display screen 26 is provided on the main body 21 near the switch button 27. A temperature sensor 25 is installed on the extension rod 23. The display screen 26, temperature sensor 25, switch button 27, annular electrode 24, and electrode plate 28 are electrically connected to the main body 21. The annular electrode 24 is a conical annular shape with a cone angle of 60 to 65 degrees. First, open and close the battery compartment cover 29 at the bottom of the main body 21, insert the battery, and screw the connecting stud 22 of the main body 21 into the external thread of the sleeve body 11. This causes the annular electrode 24 at the end of the connecting stud 22 to press against the annular contact 14 inside the sleeve body 11, while the electrode plate 28 at the top of the extension rod 23 compresses the spring contact 16 to form contact. Then, press the switch button 27, and the main body 21 releases power, which is transmitted to the heating coil 15 through the annular electrode 24, the annular contact 14, the electrode plate 28, and the spring contact 16. The temperature sensor 25 on the extension rod 23 transmits the collected temperature information to the main body 21, and the main body 21 displays the information on the display screen 26. When the set value is reached, pull the main body 21 to pull the sleeve body 11 out of the concrete substrate 3.

[0026] Working principle: Before use, the sleeve body 11 is embedded in the concrete substrate 3 and the surface is flush. At the same time, the sleeve body 11 is sealed by the sealing bolt 4 connected by the internal thread 12 to prevent dirt from entering.

[0027] To activate, first open and close the battery compartment cover 29 at the bottom of the main body 21, insert the battery, then unscrew the sealing bolt 4, and screw the connecting stud 22 of the main body 21 into the external thread of the sleeve body 11. This causes the annular electrode 24 at the end of the connecting stud 22 to press against the annular contact 14 inside the sleeve body 11, while the electrode plate 28 at the top of the extension rod 23 compresses the spring contact 16 to form contact. Then, press the switch button 27, and the main body 21 releases power, which is transmitted to the heating coil through the annular electrode 24, the annular contact 14, the electrode plate 28, and the spring contact 16. 15. The heating coil 15 converts electricity into heat, softening the sleeve body 11. The temperature sensor 25 on the extension rod 23 transmits the collected temperature information to the main body 21, which displays the information on the display screen 26. When the set value is reached, the main body 21 is pulled to remove the sleeve body 11 from the concrete substrate 3, forming a fixing hole for the installation and fixing of the anchor rod. Since the top of the sleeve body 11 is an outward protruding structure, an enlarged hole is formed in the fixing hole, avoiding secondary processing and further accelerating the installation and use of the anchor rod.

[0028] 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 quick-activation device for pre-set fixing holes in building construction, comprising sealing bolts (4), characterized in that: It also includes a sleeve assembly (1) for pre-embedding in the concrete substrate (3) to form a fixing hole and a disassembly tool (2) for providing power and pull-out force. Before activation, the sealing bolt (4) is installed at the end of the sleeve assembly (1). The sleeve assembly (1) includes a sleeve body (11), a blind hole (13) is provided in the middle of the sleeve body (11), an internal thread (12) is provided near the outlet end of the blind hole (13), an annular contact (14) is provided on the inner wall of the middle of the blind hole (13), and a spring contact (16) is provided at the top of the blind hole (13). The sleeve body (11) is made of polyethylene material and has a heating coil (15) embedded inside. The two ends of the heating coil (15) are respectively connected to the annular contact (14) and the spring contact (16). The disassembly tool (2) includes a main body (21), a connecting stud (22) is provided at one end of the main body (21), an annular electrode (24) is provided at the end of the connecting stud (22), an extension rod (23) is provided in the middle of the connecting stud (22), an electrode plate (28) is provided at the top of the extension rod (23), the annular electrode (24) and the electrode plate (28) are insulated from each other, a switch button (27) is provided on the main body (21), and a battery compartment cover (29) is provided at the end of the main body (21) away from the connecting stud (22).

2. The quick-activation device for pre-set fixing holes in building construction according to claim 1, characterized in that: The blind end of the sleeve body (11) is configured as an outward protrusion structure with a diameter larger than that of the sleeve body (11).

3. The quick-activation device for pre-set fixing holes in building construction according to claim 2, characterized in that: The outer surface of the sleeve body (11) is provided with a mesh pattern (17).

4. The quick-activation device for pre-set fixing holes in building construction according to claim 1, characterized in that: The main body (21) is provided with a display screen (26) near the switch button (27), and a temperature sensor (25) is installed on the extension rod (23). The display screen (26), the temperature sensor (25), the switch button (27), the ring electrode (24) and the electrode plate (28) are electrically connected to the main body (21).

5. The quick-activation device for pre-set fixing holes in building construction according to claim 4, characterized in that: The ring electrode (24) is a conical ring with a cone angle of 60 to 65 degrees.

6. The quick-activation device for pre-set fixing holes in building construction according to claim 1, characterized in that: The heating coils (15) are concentrated at the blind end of the sleeve body (11).

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