A through-wall bushing plugging tool set and a method for plugging a through-wall bushing

Abstract

The present invention discloses a plugging tool set for a wall-piercing bushing and a plugging method for the wall-piercing bushing. The plugging tool set for the wall-piercing bushing includes a cover, a first plugging member, a second plugging member, a third plugging member, a fourth plugging member, and a positioning ring. The positioning ring is an open-type structure made of metal, and an expanding structure is provided at its open end; the fourth plugging member is a circular ring structure made of metal, and the inner side of its front end is a conical surface; the third plugging member is a conical ring formed by plugging and combining two semi-conical rings made of rubber, and the conical ring of the third plugging member can cooperate with the conical surface inside the fourth plugging member. The first plugging member is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic, and a plurality of buckles are arranged along the circumference of the inner side end of the first plugging member. The second plugging member is formed by a plugging material filled between the first plugging member and the third plugging member. The cover is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic, and the cover can be snap-connected with the first plugging member.

Description

Technical Field

[0001] The present invention relates to a plugging tool set for a wall-piercing casing, which is mainly used for plugging a wall-piercing casing in building construction. The present invention also relates to a method for plugging a wall-piercing casing using the above plugging tool set. Background Art

[0002] Currently, when constructing to prevent leakage of a wall-piercing casing, usually two methods are adopted: First, for a buried casing, dry-hardened cement is used for plugging; Second, for an outer-wall casing, the outer opening is plugged with a plastic cap or the casing is filled with a foaming material for plugging.

[0003] Both of the above plugging methods have certain technical and quality problems: For the first plugging method, it cannot prevent leakage caused by deformation due to vibration, and at the same time, it cannot control leakage caused by irregular or elastic materials (such as cables, etc.) passing through the casing; For the second plugging method, it is basically impossible to control the leakage inside the casing, or although it is plugged, it causes great difficulty in later maintenance and replacement, thus resulting in quality defects. Summary of the Invention

[0004] In view of the above defects existing in the prior art, the present invention provides a plugging tool set for a wall-piercing casing that can effectively control the leakage problem when pipelines of different materials pass through the wall-piercing casing.

[0005] The present invention is realized through the following technical solutions: A wall-piercing bushing plugging tool set, characterized in that it includes a cover, a first plugging member, a second plugging member, a third plugging member, a fourth plugging member, and a positioning ring. The positioning ring is an open structure made of metal. An expanding structure for expanding the positioning ring outward is provided at the open end of the positioning ring. Three support feet are arranged at one end of the positioning ring at intervals along its circumference. The fourth plugging member is a circular ring structure made of metal. The inner front end of the fourth plugging member is a conical surface. The third plugging member is a conical ring formed by plugging and combining two semi-conical rings made of rubber through a plugging structure. The conical ring of the third plugging member is matched with the conical surface inside the fourth plugging member, and a positioning table matched with the end face of the fourth plugging member is provided at the large end of the conical ring of the third plugging member. An open sealing washer made of metal is provided between the positioning table of the third plugging member and the end face of the fourth plugging member. The first plugging member is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic through a plugging structure. A plurality of buckles for clamping with the sealing washer are arranged at the inner end of the first plugging member along its circumference. A positioning table matched with the end face of the wall-piercing bushing is provided at the outer end of the first plugging member. The second plugging member is formed by a plugging material filled between the first plugging member and the third plugging member. The cover is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic through a plugging structure. A plurality of buckles for engaging with the first plugging member are arranged at the inner end of the cover along its circumference. A positioning table matched with the outer end of the first plugging member is provided at the outer end of the cover. The inner end of the cover is matched with the inner circle of the outer end of the first plugging member.

[0006] In the present invention, the positioning ring is used for positioning inside the wall-piercing bushing, and the positioning ring can be fixed inside the wall-piercing bushing through its expanding structure. The positioning ring is positioned by the three support feet provided and can prevent the positioning ring from tilting. The fourth plugging member is used for positioning and cooperating with the third plugging member to achieve sealing and locking. The first plugging member can be clamped together with the sealing washer through the buckles provided at its inner end, and the second plugging member, the third plugging member, and the fourth plugging member are pressed together. The present invention uses three different grades of flexible plugging materials for plugging, which are interlocked, gradually increased in level, and complement each other, and can effectively control leakage and ensure the construction quality.

[0007] Further, plugging columns and plugging holes that cooperate with each other and plugging blocks and plugging grooves that cooperate with each other are respectively provided on the butting surfaces of the two semi-conical rings of the third plugging member. The two semi-conical rings can be quickly connected through the cooperating plugging columns and plugging holes or the cooperating plugging blocks and plugging grooves.

[0008] Further, the expansion structure of the positioning ring includes two expansion blocks respectively connected to the open end of the positioning ring. Semi-circular holes are respectively arranged at the docking ends of the two expansion blocks, and a conical expansion plug is arranged in the circular hole formed by the docking ends of the two expansion blocks. The positioning ring can be expanded by the expansion plug.

[0009] Further, to ensure the plugging effect, the flexible plugging material used for the second plugging member is asphalt or soft rubber.

[0010] The present invention also provides a plugging method for a wall-piercing casing. The technical solution adopted is as follows: A plugging method for a wall-piercing casing uses the above-mentioned wall-piercing casing plugging tool set for plugging; before a pipeline is inserted into the wall-piercing casing, first place the positioning ring in the wall-piercing casing, and expand the positioning ring through the expansion structure on the positioning ring and then fix it in the wall-piercing casing. Then install the fourth plugging member into the wall-piercing casing and position it through the positioning ring; after the pipeline is inserted into the wall-piercing casing, install the sealing washer and the third plugging member into the wall-piercing casing. The conical ring of the third plugging member cooperates with the conical surface on the inner side of the fourth plugging member. Then fill the plugging material between the inserted pipeline and the third plugging member to form the second plugging member. Then install the first plugging member on the outer ends of the second plugging member and the third plugging member and press the second plugging member, the third plugging member, and the fourth plugging member tightly. Finally, install the cover on the first plugging member through its buckle.

[0011] The beneficial effects of the present invention are as follows: The plugging tool set in the present invention has a simple structure and is convenient to operate. It uses three different grades of flexible plugging materials for plugging, which are interlocked, gradually increased in level, and complement each other. It can effectively control leakage and ensure the construction quality. Moreover, the plugging structure in the present invention has adaptability to irregular or elastic materials (such as cables, etc.) passing through the casing, and can effectively control the leakage problem when pipelines of different materials pass through the wall-piercing casing. It can effectively solve the technical and quality problems existing in the current wall-piercing casing. It is a practical technology that is economical, applicable, convenient to operate, and reliable in quality, and has good promotion prospects. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the plugging tool set in the present invention;

[0013] Figure 2 is a schematic cross-sectional view of the plugging tool set in the present invention;

[0014] Figure 3 is a schematic structural diagram of the first plugging member in the present invention;

[0015] Figure 4 is a schematic structural diagram of the third plugging member in the present invention;

[0016] Figure 5 is a schematic structural diagram of the sealing washer in the present invention;

[0017] Figure 6 is a schematic structural view of the positioning ring in the present invention;

[0018] Figure 7 is a schematic view when the present invention plugs the wall-piercing casing;

[0019] In the figure, 1 is the cover, 2 is the first plugging member, 3 is the second plugging member, 4 is the third plugging member, 5 is the sealing gasket, 6 is the fourth plugging member, 7 is the positioning ring, and 8 is the wall-piercing casing;

[0020] 1-1 is the buckle of the cover, and 1-2 is the positioning platform of the cover;

[0021] 2-1 is the positioning platform of the first plugging member, 2-2 is the first buckle of the first plugging member, 2-3 is the clamping groove of the first plugging member, and 2-4 is the second buckle of the first plugging member;

[0022] 4-1 is the positioning platform of the third plugging member, 4-2 is the insertion hole, 4-3 is the insertion post, 4-4 is the insertion block, and 4-5 is the insertion groove;

[0023] 7-1 are the supporting feet of the positioning ring, 7-2 is the expanding block, and 7-3 is the expansion plug. Specific Embodiment

[0024] The present invention will be further described below through non-limiting embodiments in conjunction with the accompanying drawings:

[0025] As shown in the accompanying drawings, a wall-piercing casing plugging tool set includes a cover 1, a first plugging member 2, a second plugging member 3, a third plugging member 4, a sealing gasket 5, a fourth plugging member 6, and a positioning ring 7.

[0026] The positioning ring 7 is an open structure made of metal. An expanding structure for expanding the positioning ring 7 outward is provided at the open end of the positioning ring 7. Three supporting feet 7-1 are spaced along the circumferential direction at one end of the positioning ring 7. In this embodiment, the expanding structure of the positioning ring 7 includes two expanding blocks 7-2 respectively connected to the open end of the positioning ring 7. Semi-circular holes are respectively provided at the docking ends of the two expanding blocks 7-2. A conical expansion plug 7-3 is provided in the circular hole formed by the docking ends of the two expanding blocks 7-2. The positioning ring 7 is used for positioning in the wall-piercing casing 8. After being expanded by its expanding structure, the positioning ring 7 can be fixed in the wall-piercing casing 8. The positioning ring 7 can be positioned in the wall-piercing casing 8 through the three supporting feet 7-1 and can prevent the positioning ring 7 from tilting in the pipe, ensuring accurate positioning in the pipe. The outer diameter of the positioning ring 7 conforms to the inner diameter of the wall-piercing casing 8.

[0027] The fourth plugging member 6 is a circular ring structure made of metal. The inner side of the front end of the fourth plugging member 6 is a conical surface. The fourth plugging member 6 is used for positioning and cooperating with the third plugging member to achieve sealing and locking.

[0028] The third plugging member 4 is a conical ring formed by plugging and combining two semi-conical rings made of rubber. The conical ring of the third plugging member 4 can cooperate with the conical surface on the inner side of the fourth plugging member 6, and a positioning table 4-1 that can cooperate with the end surface of the fourth plugging member 6 is provided at the large opening end of the conical ring of the third plugging member 4. The outer diameter of the positioning table 4-1 is the same as the outer diameter of the positioning ring 7, and both conform to the inner diameter of the wall-piercing casing 8. Plugging columns 4-3 and plugging holes 4-2 that cooperate with each other are respectively provided on the butting surfaces of the two semi-conical rings of the third plugging member 4. The two semi-conical rings can be plugged into one body through the plugging columns 4-3 and the plugging holes 4-2. To ensure reliable butting of the two semi-conical rings, in this embodiment, plugging blocks 4-4 and plugging grooves 4-5 are respectively provided on the butting surfaces of the two semi-conical rings. The two semi-conical rings can be tightly plugged into one body through the plugging of the plugging columns 4-3 and the plugging holes 4-2 and the plugging blocks 4-4 and the plugging grooves 4-5.

[0029] The sealing washer 5 is an open-ring structure made of metal. The inner side wall of the sealing washer 5 is an inclined surface. The sealing washer 5 is used for sealing between the positioning table 4-1 of the third plugging member 4 and the end surface of the fourth plugging member 6, and at the same time serves as a clamping member connected to the first plugging member 2.

[0030] The first plugging member 2 is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic. A plurality of buckles Ⅰ2-2 are arranged along the circumference at the inner end of the first plugging member 2, and a positioning table 2-1 that can cooperate with the end surface of the wall-piercing casing is provided at the outer end of the first plugging member 2. Buckles Ⅱ2-4 and clamping grooves 2-3 are respectively provided at the plugging ends of the two semi-circular rings. The two semi-circular rings are plugged and connected into one body through the buckles Ⅱ2-4 and the clamping grooves 2-3 at their plugging ends. The buckles Ⅰ2-2 provided at the inner end of the first plugging member 2 are used for clamping connection with the sealing washer 5. During installation, the buckles Ⅰ2-2 can slide along the inclined surface of the inner side wall of the sealing washer 5 to the end surface position of the sealing washer 5 to achieve clamping connection.

[0031] The second plugging member 3 is formed by a flexible plugging material filled between the first plugging member 2 and the third plugging member 4. The flexible plugging material can be asphalt or soft rubber or other flexible plugging materials that can perform plugging.

[0032] The cover 1 is an annular structure formed by plugging and combining two semi-circular rings made of plastic. The plugging structure of the two semi-circular rings of the cover 1 is the same as that of the first plugging member 2. A plurality of buckles 1-1 that can be engaged with the first plugging member 2 are arranged along the circumference of the inner end of the cover 1. A positioning table 1-2 that can cooperate with the outer end of the first plugging member 2 is arranged at the outer end of the cover 1. The inner end of the cover 1 can cooperate with the inner circle of the outer end of the first plugging member 2. The cover adopts an internal self-locking structure, which is beautiful, and the installation is convenient and fast.

[0033] When using the above plugging tool set to plug the wall-piercing bushing, before threading the pipeline into the wall-piercing bushing 8, first place the positioning ring 7 in the wall-piercing bushing 8, and expand the positioning ring 7 through the expanding structure on the positioning ring 7 and then fix it in the wall-piercing bushing 8. Then install the fourth plugging member 6 into the wall-piercing bushing 8 and position it through the positioning ring 7. After the pipeline is threaded into the wall-piercing bushing 8, install the sealing washer 5 and the third plugging member 4 into the wall-piercing bushing 8. The conical ring of the third plugging member 4 cooperates with the tapered surface inside the fourth plugging member 6. The sealing washer 5 is between the end face of the fourth plugging member 6 and the positioning table 4-1 of the third plugging member 4. Then fill the plugging material between the threaded pipeline and the third plugging member 4 to form the second plugging member 3. Then install the first plugging member 2 on the outer ends of the second plugging member 3 and the third plugging member 4. The buckle Ⅰ 2-2 of the first plugging member 2 is clamped with the sealing washer 5 from the outside of the third plugging member 4 and presses the second plugging member 3, the third plugging member 4, and the fourth plugging member 6 tightly. Finally, install the cover 1 on the first plugging member 2 through its buckle 1-1. By using three different grades of flexible plugging materials for plugging, which are interlocked, gradually increased in grade, and complement each other, the present invention can effectively control leakage and ensure the construction quality.

[0034] In the present invention, the position of the positioning ring can be set according to the pressure difference inside and outside the bushing, and the length and grade of the plugging material required can be controlled, so that the plugging effect is controllable, the applicable range is wide, and the quality is easier to guarantee.

[0035] Other parts in this embodiment are all prior arts and will not be elaborated here.

Claims

1. A wall-piercing bushing plugging tool set, characterized in that: It includes a cover (1), a first plugging member (2), a second plugging member (3), a third plugging member (4), a fourth plugging member (6), and a positioning ring (7). The positioning ring (7) is an open structure made of metal. An expanding structure for expanding the positioning ring (7) outward is provided at the open end of the positioning ring (7). Three support feet are arranged at one end of the positioning ring (7) at intervals along its circumference. The fourth plugging member (6) is a circular ring structure made of metal. The inner front end of the fourth plugging member (6) is a conical surface. The third plugging member (4) is a conical ring formed by plugging and combining two semi-conical rings made of rubber through a plugging structure. The conical ring of the third plugging member (4) cooperates with the conical surface inside the fourth plugging member (6). A positioning table for cooperating with the end face of the fourth plugging member (6) is provided at the large opening end of the conical ring of the third plugging member (4). An open sealing washer (5) made of metal is provided between the positioning table of the third plugging member (4) and the end face of the fourth plugging member (6). The inner side wall of the sealing washer (5) is an inclined surface. The first plugging member (2) is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic through a plugging structure. A plurality of buckles for clamping with the sealing washer (5) are arranged at the inner end of the first plugging member (2) along its circumference. A positioning table for cooperating with the end face of the wall-piercing casing is provided at the outer end of the first plugging member (2). The second plugging member (3) is formed by a flexible plugging material filled between the first plugging member (2) and the third plugging member (4). The cover (1) is a circular ring structure formed by plugging and combining two semi-circular rings made of plastic through a plugging structure. A plurality of buckles for engaging with the first plugging member (2) are arranged at the inner end of the cover (1) along its circumference. A positioning table for cooperating with the outer end of the first plugging member (2) is provided at the outer end of the cover (1). The inner end of the cover (1) fits with the inner circle of the outer end of the first plugging member (2).

2. The plugging tool set for the wall bushing according to claim 1, characterized in that: On the butting surfaces of the two semi-conical rings of the third plugging member (4), a mating plugging post and plugging hole, as well as a mating plugging block and plugging groove, are respectively provided.

3. The plugging tool set for the wall-piercing bushing according to claim 1, characterized in that: The expanding structure of the positioning ring (7) includes two expanding blocks (7-2) respectively connected to the open end of the positioning ring (7). Semi-circular holes are respectively provided at the butting ends of the two expanding blocks (7-2). A conical expansion plug (7-3) is provided in the circular hole formed by the butting ends of the two expanding blocks (7-2).

4. The plugging tool set for the wall bushing according to claim 1 or 2 or 3, characterized in that: The flexible plugging material used for the second plugging member (3) is asphalt or soft rubber.

5. A method for sealing a wall bushing, characterized in that: Use the through-wall bushing plugging tool set described in any one of claims 1-4 for plugging; before a pipeline is inserted into the through-wall bushing, first place the positioning ring (7) inside the through-wall bushing, and expand and fix the positioning ring in the through-wall bushing (8) through the expansion structure on the positioning ring (7), then install the fourth plugging member (6) into the through-wall bushing (8) and position it through the positioning ring (7); after the pipeline is inserted into the through-wall bushing (8), install the sealing washer (5) and the third plugging member (4) into the through-wall bushing (8), the conical ring of the third plugging member (4) cooperates with the conical surface inside the fourth plugging member (6), then fill the plugging material between the inserted pipeline and the third plugging member (4) to form the second plugging member (3), and then install the first plugging member (2) on the outer ends of the second plugging member (3) and the third plugging member (4), the buckle of the first plugging member (2) is clamped with the sealing washer (5) from the outside of the third plugging member (4) and presses the second plugging member (3), the third plugging member (4), and the fourth plugging member (6) tightly, and finally install the cover (1) on the first plugging member (2) through its buckle.

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