Kneading and squeezing hole plugging device and use method

By knocking the heater, positioning sleeve and mold combination device, the problems of difficult construction and uneven thickness of fireproof mud at low temperature are solved, and uniform filling and high-quality fireproof mud construction are achieved.

CN116971636BActive Publication Date: 2025-09-19STATE GRID XIN YUAN CO LTD +2
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Patent Information

Application Number
CN202310787787.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-29
Publication Date
2025-09-19
Estimated Expiration
2043-06-29

AI Technical Summary

Technical Problem

Fireproof mud is hard and difficult to knead at low temperatures, making it difficult to construct. It also has uneven thickness and is prone to cracking, requiring two applications, resulting in poor construction quality.

Method used

A knocking heater, a positioning sleeve and a knocking mold combination device is used to soften the fireproof mud by heating and use the knocking mold to squeeze it evenly into the hole, and a guide sleeve and a knocking sleeve are combined to form a circular tubular filling.

Benefits of technology

It achieves uniform filling of fireproof mud, improves construction quality, reduces construction difficulty, reduces cracking risk, and reduces construction steps.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a kneading, extruding, and plugging hole device and a method for use. The kneading, extruding, and plugging hole device comprises a percussion heater and a tooling. The percussion heater is provided with a percussion head and a heating cylinder. The tooling comprises a positioning sleeve and a percussion mold. The percussion heater comprises a vertical handle, a horizontal housing is provided at the top of the handle, a percussion head is provided at the front end of the housing, and a linkage mechanism for reciprocating the percussion head is provided within the housing. A motor is provided at the top of the handle, and the motor is connected to the percussion head via the linkage mechanism. A battery is provided in the middle of the handle. A groove is provided at the bottom of the handle, and a heating cylinder made of a heat-conducting material is provided in the groove. The bottom of the heating cylinder is open, and a heating plate is provided at the top of the heating cylinder. A first switch, a second switch, and a charging port are provided on the outside of the handle. The motor is connected to the battery via the first switch, and the heating plate is connected to the battery via the second switch. The present invention has the advantages of good construction quality and low construction difficulty.
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Description

Technical Field

[0001] The invention belongs to the field of fireproof mud hole plugging equipment, and in particular relates to a fireproof mud kneading and extruding hole plugging device and a use method. Background Art

[0002] Fireproof putty is a flexible flame-retardant material. In power systems, it is primarily used to seal holes where cables pass through walls to prevent fires from spreading from the holes to adjacent rooms, thereby reducing fire damage. Before using fireproof putty to seal holes, it is usually necessary to knead the putty evenly. However, there is a problem: at low temperatures, the putty is relatively hard and not so easy to knead, making it difficult to fill the gap between the cable and the hole, making construction more difficult. Furthermore, while it may appear that the hole has been completely blocked by fireproof putty, in reality, only a very thin layer of fireproof putty has formed on the outer surface in some places. This means that, viewed circumferentially, the thickness of the fireproof putty driven axially into the hole in various areas is uneven. After drying and solidifying, the fireproof putty is prone to cracking, powdering, and falling off in weak areas, resulting in poor construction quality. After sealing one end of the hole, it is necessary to seal the other end again, requiring two operations, further increasing the difficulty of construction. Summary of the Invention

[0003] The object of the present invention is to provide a kneading and squeezing hole plugging device and a method for using the device. The present invention has the advantages of good construction quality and low construction difficulty.

[0004] The technical solution of the present invention is: a kneading and extruding hole plugging device, including a handheld knocking heater and a tooling, the knocking heater is provided with a knocking head and a heating cylinder, the tooling includes a positioning sleeve and a knocking mold, the positioning sleeve is used to keep the cable and the hole coaxial, and the knocking mold is used to squeeze the fireproof mud into the space between the cable and the hole in a circular tubular structure.

[0005] In the aforementioned kneading and squeezing hole plugging device, the knocking heater includes a vertical handle, a horizontal shell is provided on the top of the handle, a knocking head is provided at the front end of the shell, and a linkage mechanism for causing the knocking head to reciprocate is provided inside the shell;

[0006] A motor is provided on the upper part of the handle, and the motor is connected to the striking head through a linkage mechanism;

[0007] A battery is provided in the middle of the handle;

[0008] There is a groove at the bottom of the handle, and a heating cylinder made of heat-conducting material is arranged in the groove. The bottom of the heating cylinder is open, and a heating plate is arranged on the top of the heating cylinder.

[0009] A first switch, a second switch and a charging port are provided on the outside of the handle. The motor is connected to the battery through the first switch, and the heating plate is connected to the battery through the second switch.

[0010] In the aforementioned kneading, squeezing and plugging device, the heating cylinder is magnetically connected to the handle.

[0011] In the aforementioned kneading, squeezing and plugging device, the linkage mechanism includes an eccentric wheel fixed to the output end of the motor, a wheel sleeve is provided on the outer side of the eccentric wheel, a first connecting rod is provided on the side wall of the wheel sleeve, a second connecting rod is hingedly connected to the end of the first connecting rod, a vibrating rod is provided at the end of the second connecting rod, a guide tube connected to the shell is provided on the outer side of the vibrating rod, and the end of the vibrating rod is connected to the knocking head after extending out of the shell.

[0012] In the aforementioned kneading and squeezing hole plugging device, the vibrating rod is bent upward and then horizontally after extending out of the shell, and then connected to the striking head. The vibrating rod has a Z-shaped structure.

[0013] In the aforementioned kneading, squeezing and plugging device, the output end of the motor passes through the eccentric wheel and is connected to the housing bearing.

[0014] In the aforementioned kneading and squeezing plugging device, the positioning sleeve includes a left sleeve body and a right sleeve body, one side of the left sleeve body and one side of the right sleeve body are hinged, and the left sleeve body and the right sleeve body are provided with at least two rows of axially arranged support plates, each row of support plates includes at least two support plates, and the support plates are arranged obliquely.

[0015] In the aforementioned kneading and extruding hole plugging device, the knocking mold includes a guide sleeve, the inner hole of the guide sleeve has the same or similar diameter as the hole, the guide sleeve is composed of a first side plate and a second side plate, one side of the first side plate and one side of the second side plate are hinged, the other side of the first side plate and the other side of the second side plate are detachably connected, and a positioning piece is provided on the inner side of one end of the first side plate and the inner side of one end of the second side plate, one end of the positioning piece is located in the guide sleeve, and the other end of the positioning piece extends out of the guide sleeve;

[0016] A knocking sleeve is provided in the guide sleeve, the inner hole of the knocking sleeve matches the diameter of the cable, the knocking sleeve consists of a third side plate and a fourth side plate, the third side plate is provided with a connecting block inserted into the fourth side plate, and the ends of the third side plate and / or the fourth side plate are provided with flanges extending radially outward.

[0017] The method for using the aforementioned kneading and squeezing hole plugging device comprises the following steps:

[0018] a. Put the fireproof mud into the heating tank, heat it to 40-80℃, then take it out.

[0019] b. Fit the positioning sleeve onto the cable and place it into the hole.

[0020] c. Put the fireproof mud into the knocking mold, align the knocking mold with the hole, use the knocking heater to hit the knocking mold, so that the fireproof mud enters the hole, and then remove the knocking mold.

[0021] In the aforementioned method for using the kneading and squeezing hole plugging device, in step b, when the positioning sleeve is assembled on the cable, the left sleeve and the right sleeve are respectively located on the horizontal sides of the cable, and the hinge between the left sleeve and the right sleeve is located below the cable;

[0022] In the step c, the fireproof mud pushes the positioning sleeve to move after entering the hole until the positioning sleeve falls out of the hole, and then the striking mold is stopped. After the striking mold is removed, the fireproof mud outside the hole is cut off with a blade.

[0023] Compared with the prior art, the present invention consists of four parts: a knocking heater, a positioning sleeve, a knocking sleeve and a guide sleeve. The positioning sleeve forms a uniform gap between the cable and the hole, so that after the fireproof mud enters the hole, it forms a filling with uniform wall thickness. After solidification, the integrity is better and it is not easy to break into powder. The filling quality is better, that is, the construction quality is better. In addition, the presence of the positioning sleeve solves the technical problem that workers can know that the fireproof mud has filled the hole without running to the next room. They only need to listen to the falling sound of the positioning sleeve, which can improve the construction speed. The combination of the guide sleeve and the knocking sleeve makes The fireproof mud is formed into a circular tube shape, which matches the shape of the gap between the cable and the hole, which not only reduces the extrusion pressure of the fireproof mud, but also enables the fireproof mud to be more fully filled into the hole, thereby further improving the construction quality; by knocking the heater, the fireproof mud is preheated to soften the fireproof mud, and high-frequency knocking is provided to form kneading and squeezing on the fireproof mud, thereby promoting the fireproof mud to move into the hole (such as continuously squeezing the fireproof mud with a fixed force, even if the fireproof mud has been softened, due to the large contact area between the fireproof mud and the guide sleeve, the friction force is large and it is still difficult to push the fireproof mud), thereby reducing the construction difficulty. Therefore, the present invention has the advantages of good construction quality and low construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of a knock heater.

[0025] Figure 2 It is a top view of the eccentric wheel.

[0026] Figure 3 It is the left view of the positioning sleeve.

[0027] Figure 4 It is the left view when the positioning sleeve is opened.

[0028] Figure 5 It is a front view of the positioning sleeve.

[0029] Figure 6 It is a front view of the striking mold.

[0030] Figure 7 It is the left view of the guide sleeve.

[0031] Figure 8 It is the left side view of the striking sleeve.

[0032] Figure 9 It is a front view schematic diagram of the present invention in use.

[0033] The marks in the accompanying drawings are: 100- knocking head, 101- heating cylinder, 102- handle, 103- shell, 104- motor, 105- battery, 106- heating plate, 107- first switch, 108- second switch, 109- charging port, 110- eccentric wheel, 111- wheel sleeve, 112- first connecting rod, 113- second connecting rod, 114- vibrating rod, 115- guide tube; 200- left sleeve, 201- right sleeve, 202- support plate; 300- guide sleeve, 301- first side plate, 302- second side plate, 303- positioning plate, 304- knocking sleeve, 305- third side plate, 306- fourth side plate, 307- connecting block, 308- flange; 4- cable, 5- hole. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0035] Embodiment: A kneading and extruding hole plugging device includes a handheld percussion heater and a tooling, wherein the tooling includes a positioning sleeve and a percussion die, wherein the positioning sleeve is used to keep the cable 4 and the hole 5 coaxial, and the percussion die is used to squeeze the fireproof mud into the space between the cable 4 and the hole 5 in a circular tubular structure.

[0036] like Figure 1 and Figure 2 As shown, the percussion heater comprises a vertical handle 102. A transverse, elongated tubular housing 103 is located at the top of the handle 102. A percussion head 100 is located at the front end of the housing 103. A linkage mechanism is housed within the housing 103 to reciprocate the percussion head 100. A motor 104 is located at the top of the handle 102, connected to the percussion head 100 via a linkage mechanism. A battery 105 is located in the middle of the handle 102. A recess is located at the bottom of the handle 102, within which a heating cylinder 101 made of a heat-conducting material is located. The bottom of the heating cylinder 101 is open, and a PTC-type heating plate 106 is located at the top of the heating cylinder 101, secured to the handle 102. The outside of the handle 102 is provided with a first switch 107, a second switch 108, and a charging port 109. The motor 104 is connected to the battery 105 via the first switch 107, the heating plate 106 is connected to the battery 105 via the second switch 108, and the charging port 109 is connected to the battery 105.

[0037] The heating cylinder 101 is magnetically connected to the handle 102. The heating cylinder 101 is made of stainless steel, and a magnet embedded in the inner wall of the groove is provided on the outside of the heating cylinder 101. The heating cylinder 101 can be detached from the handle 102, making it easier for workers to remove the fireproofing mud from the heating cylinder 101 using tools.

[0038] The linkage mechanism includes an eccentric wheel 110 fixed to the output end of the motor 104, a wheel sleeve 111 is provided on the outer side of the eccentric wheel 110, and the wheel sleeve 111 and the eccentric wheel 110 are preferably connected by a bearing. A first connecting rod 112 is provided on the side wall of the wheel sleeve 111, and a second connecting rod 113 is hinged at the end of the first connecting rod 112. A vibrating rod 114 is provided at the end of the second connecting rod 113. A guide tube 115 connected to the shell 103 is provided on the outer side of the vibrating rod 114, and the end of the vibrating rod 114 extends out of the shell 103 and is connected to the knocking head 100.

[0039] After extending out of the housing 103, the vibrating rod 114 is first bent upward and then horizontally, and then connected to the striking head 100. The vibrating rod 114 has a Z-shaped structure. The cross-section of the mating portion of the vibrating rod 114 and the guide tube 115 is not circular to prevent the striking head 100 from rotating due to rotation. The cross-section of the vibrating rod 114 can be, for example, a regular hexagon. The Z-shaped structure of the vibrating rod 114 can prevent the striking head 100 from being coaxial with the housing 103, preventing interference between the housing 103 and the cable during the striking head 100 operation, thereby reducing the difficulty of construction.

[0040] The output end of the motor 104 passes through the eccentric wheel 110 and is connected to the bearing of the housing 103, so that the end of the motor 104 is limited, thereby preventing the shaft of the motor 104 from being twisted and reducing the failure rate of the motor.

[0041] The working principle of the percussion heater: When the second switch 108 is turned on, the heating plate 106 is connected to the battery 105, generating heat, which is then transferred to the heating cylinder 101. When the first switch 107 is turned on, the motor 104 is connected to the battery 105, and the motor 104 drives the eccentric wheel 110 to rotate. The eccentric wheel 110 causes the wheel sleeve 111 to reciprocate along the axial direction of the housing 103. The wheel sleeve 111 drives the vibrating rod 114 to reciprocate along the guide tube 115 via the first connecting rod 112 and the second connecting rod 113, causing the percussion head 100 to also reciprocate. In this embodiment, the eccentricity of the eccentric wheel 110 is 0.8 mm, meaning that the reciprocating stroke of the percussion head 100 is 1.6 mm. The speed of the motor 104 is 3000-4000 r / min.

[0042] like Figures 3 to 5As shown, the positioning sleeve includes a left sleeve body 200 and a right sleeve body 201. The lower side of the left sleeve body 200 and the lower side of the right sleeve body 201 are hinged. Two rows of axially arranged support plates 202 are provided on the left sleeve body 200 and the right sleeve body 201. Each row of support plates 202 includes two support plates 202. The support plates 202 are tilted and are made of spring steel.

[0043] like Figures 6 to 8 As shown, the knocking mold includes a guide sleeve 300, the inner hole of the guide sleeve 300 has the same or similar diameter as the hole 5, and the guide sleeve 300 is composed of a first side plate 301 and a second side plate 302. One side of the first side plate 301 and one side of the second side plate 302 are hinged, and the other side of the first side plate 301 and the other side of the second side plate 302 are screwed together. A positioning piece 303 is provided on the inner side of one end of the first side plate 301 and the inner side of one end of the second side plate 302. One end of the positioning piece 303 is located in the guide sleeve 300, and the other end of the positioning piece 303 extends out of the guide sleeve 300;

[0044] A knocking sleeve 304 is provided in the guide sleeve 300, and the inner hole of the knocking sleeve 304 matches the diameter of the cable 4. The knocking sleeve 304 consists of a third side plate 305 and a fourth side plate 306. The third side plate 305 is provided with a connecting block 307 inserted into the fourth side plate 306, and the ends of the third side plate 305 and the fourth side plate 306 are provided with flanges 308 extending radially outward.

[0045] The method for using the kneading and squeezing hole plugging device comprises the following steps:

[0046] a. Put the fireproof clay into the heating cylinder 101, heat it to 60°C, and then take it out. The fireproof clay softens after being heated and is easy to shape.

[0047] b. Open the positioning sleeve to Figure 4 State, assembled to cable 4, closed, and the positioning sleeve is placed in hole 5. At this time, the support piece 202 is deformed, and the outer end of the support piece 202 moves inward, forming a uniform gap between the cable 4 and the hole 5. The left sleeve 200 and the right sleeve 201 are respectively located on both sides of the horizontal line of cable 4, and the hinge of the left sleeve 200 and the right sleeve 201 is located below the cable 4.

[0048] c. Pull out the knocking sleeve 304 from the guide sleeve 300, open the guide sleeve 300, flatten the fireproof mud and place it on the inner wall of the guide sleeve 300, and reclose the guide sleeve 300 with the cable 4 as the center. Squeeze the fireproof mud into the original tube shape, align the guide sleeve 300 with the hole 5, and insert the positioning piece 303 into the hole 5; place the third side plate 305 and the fourth side plate 306 on both sides of the cable 4 respectively, close them into the knocking sleeve 304, and insert them into the guide sleeve 300; fix the guide sleeve 300 with one hand and shake hands with the other hand Use handle 102, aim the striking head 100 at any one of the flanges 308, and use the striking head 100 to strike the flange 308, so that the striking sleeve 304 moves inward, squeezing the fireproof mud into the hole 5; when the other end of the fireproof mud extends from the other end of the hole 5, the positioning sleeve automatically opens and falls off. After hearing the sound, the worker stops striking the flange 308, pulls out the striking sleeve 304 and removes it from the cable 4, pulls out the guide sleeve 300 and removes it from the cable 4, and uses a blade to cut off the fireproof mud outside the hole 5.

Claims

1. A kneading and squeezing hole plugging device, characterized in that: The invention comprises a handheld striking heater and a tool, wherein the striking heater is provided with a striking head (100) and a heating cylinder (101), and the tool comprises a positioning sleeve and a striking mold, wherein the positioning sleeve is used to keep the cable (4) and the hole (5) coaxial, and the striking mold is used to squeeze the fireproof mud into the space between the cable (4) and the hole (5) in a circular tubular structure; The knocking mold includes a guide sleeve (300), an inner hole of the guide sleeve (300) and a diameter similar to that of the hole (5), the guide sleeve (300) consisting of a first side plate (301) and a second side plate (302), one side of the first side plate (301) and one side of the second side plate (302) being hinged, the other side of the first side plate (301) and the other side of the second side plate (302) being detachably connected, a positioning piece (303) being provided on the inner side of one end of the first side plate (301) and the inner side of one end of the second side plate (302), one end of the positioning piece (303) being located in the guide sleeve (300), and the other end of the positioning piece (303) extending out of the guide sleeve (300); A knocking sleeve (304) is provided in the guide sleeve (300), the inner hole of the knocking sleeve (304) matches the diameter of the cable (4), the knocking sleeve (304) is composed of a third side plate (305) and a fourth side plate (306), the third side plate (305) is provided with a connecting block (307) inserted into the fourth side plate (306), and the ends of the third side plate (305) and / or the fourth side plate (306) are provided with flanges (308) extending radially outward. The positioning sleeve comprises a left sleeve body (200) and a right sleeve body (201), one side of the left sleeve body (200) and one side of the right sleeve body (201) are hinged, and at least two rows of axially arranged support sheets (202) are provided on the left sleeve body (200) and the right sleeve body (201), each row of support sheets (202) comprises at least two support sheets (202), and the support sheets (202) are arranged obliquely.

2. The kneading and squeezing hole plugging device according to claim 1, characterized in that: The knocking heater comprises a vertical handle (102), a horizontal shell (103) is provided on the top of the handle (102), a knocking head (100) is provided at the front end of the shell (103), and a linkage mechanism for causing the knocking head (100) to reciprocate is provided in the shell (103); A motor (104) is provided on the upper portion of the handle (102), and the motor (104) is connected to the striking head (100) via a linkage mechanism; A battery (105) is provided in the middle of the handle (102); A groove is provided at the bottom of the handle (102), a heating cylinder (101) made of a heat-conducting material is provided in the groove, the bottom of the heating cylinder (101) is open, and a heating plate (106) is provided on the top of the heating cylinder (101); A first switch (107), a second switch (108) and a charging port (109) are provided on the outside of the handle (102); the motor (104) is connected to the battery (105) via the first switch (107); and the heating plate (106) is connected to the battery (105) via the second switch (108).

3. The kneading and squeezing hole plugging device according to claim 2, characterized in that: The heating cylinder (101) is magnetically connected to the handle (102).

4. The kneading and squeezing hole plugging device according to claim 2, characterized in that: The linkage mechanism comprises an eccentric wheel (110) fixed to the output end of the motor (104); a wheel sleeve (111) is provided on the outer side of the eccentric wheel (110); a first connecting rod (112) is provided on the side wall of the wheel sleeve (111); a second connecting rod (113) is hingedly connected to the end of the first connecting rod (112); a vibrating rod (114) is provided on the end of the second connecting rod (113); a guide tube (115) connected to the housing (103) is provided on the outer side of the vibrating rod (114); and the end of the vibrating rod (114) extends out of the housing (103) and is connected to the striking head (100).

5. The kneading and squeezing hole plugging device according to claim 4, characterized in that: After extending out of the housing (103), the vibrating rod (114) is first bent upward, then bent horizontally, and then connected to the striking head (100). The vibrating rod (114) has a Z-shaped structure.

6. The kneading and squeezing hole plugging device according to claim 2, characterized in that: The output end of the motor (104) passes through the eccentric wheel (110) and is connected to the bearing of the housing (103).

7. The method for using the kneading and squeezing hole plugging device according to any one of claims 1 to 6, characterized in that: The following steps are included: a. Put the fireproof mud into the heating cylinder (101), heat it to 40-80℃, then take it out. b. Fit the positioning sleeve onto the cable (4) and insert the positioning sleeve into the hole (5). c. Place the fireproof mud into the knocking mold, align the knocking mold with the hole (5), and use the knocking heater to hit the knocking mold. After the fireproof mud enters the hole (5), remove the knocking mold.

8. The method for using the kneading and squeezing hole plugging device according to claim 7, characterized in that: In the step b, when the positioning sleeve is assembled onto the cable (4), the left sleeve (200) and the right sleeve (201) are respectively located on the horizontal sides of the cable (4), and the hinge between the left sleeve (200) and the right sleeve (201) is located below the cable (4); In the step c, the fireproof mud enters the hole (5) and pushes the positioning sleeve to move until the positioning sleeve falls out of the hole (5), and then the striking mold is stopped. After the striking mold is removed, the fireproof mud located outside the hole (5) is cut off using a blade.

Citation Information

Patent Citations

  • Blocking device for high pressure hole, construction method and application thereof

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  • Fireproof mud plugging and tamping tool and method

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  • Plugging structure and method for civil air defense reserved casing pipe

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