Wall bushing convenient to fix

Abstract

The utility model belongs to the technical field of wall feed-through pipes, and relates to a wall feed-through sleeve convenient to fix, which comprises an inner pipe, an outer pipe and two baffles, the inner pipe and the outer pipe are coaxially arranged, and the inner pipe and the outer pipe are fixedly connected through a connecting rod; a mounting groove is formed in the inner wall of the outer pipe, a plurality of through holes are formed in the bottom of the mounting groove, limiting grooves corresponding to the through holes in position are formed in the outer wall of the inner pipe, and telescopic clamping pieces are mounted in the limiting grooves; the telescopic clamping piece comprises an outer barrel, a compression spring and a movable block, the movable block is connected to the bottom of the shell through the compression spring, and the through hole is used for avoiding the movable block; internal threads are arranged on the inner wall of the inner pipe, connecting pipes are connected to the two baffles, and the two baffles are in threaded connection with the two ends of the inner pipe through the connecting pipes correspondingly; and a threading through hole corresponding to the position of the inner pipe is formed in the baffle plate. The outer pipe is connected with the inner pipe, the inner pipe is protected, the outer pipe can be fixed through the telescopic clamping pieces, the movable blocks of the multiple telescopic clamping pieces abut against the wall, and the fixing effect is good; installation is convenient, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of wall-penetrating pipes, in particular to a wall-penetrating sleeve which is easy to fix. Background Art

[0002] Wall bushing is also called wall pipe, waterproof bushing, and wall embedded pipe. Waterproof bushing is divided into rigid waterproof bushing and flexible waterproof bushing. The one used for conduction in electricity is called AC wall bushing. According to the material, it can be divided into dry capacitor type AC wall bushing and porcelain insulated AC wall bushing, which are abbreviated as silicone rubber bushing and porcelain bushing respectively.

[0003] Wall sleeves are commonly used in construction projects. During installation, they generally need to be fixed and embedded in the wall with cement. The operation is troublesome, time-consuming and labor-intensive, and inconvenient for construction and installation. Therefore, we propose a wall sleeve that is easy to fix. Utility Model Content

[0004] In order to overcome the technical defects of existing wall-penetrating pipes that require cement to be embedded in the wall during installation, which is time-consuming and labor-intensive and inconvenient for construction and installation, the utility model provides a wall-penetrating sleeve that is easy to fix.

[0005] The utility model provides a wall-penetrating sleeve that is easy to fix, comprising an inner tube and an outer tube arranged coaxially and two baffles, wherein the inner tube and the outer tube are fixedly connected by a plurality of connecting rods arranged along the axes of the inner tube and the outer tube, and the connecting rods are evenly distributed along the circumference of the inner tube and the outer tube; a plurality of mounting grooves are opened on the inner wall of the outer tube along its axial direction, and a plurality of through holes penetrating the wall of the outer tube are opened at the bottom of the mounting grooves, a plurality of limiting grooves corresponding to the position of each through hole are opened on the outer wall of the inner tube, and a telescopic clamp is installed in the limiting groove; the telescopic clamp comprises an outer cylinder, a compression spring and a movable block, and the outer cylinder is a cylindrical structure with a bottom and no top. The compression spring connects the movable block to the bottom of the outer shell, the expansion and contraction direction of the compression spring is consistent with the axis of the outer cylinder, the bottom of the outer cylinder is fixed to the limit groove, and the top of the outer cylinder is stuck in the installation groove at the corresponding through hole. The axis of the outer cylinder is located in the radial direction of the inner tube or the outer tube, and the through hole is used to avoid the movable block at the end of the compression spring; an internal thread is provided on the inner wall of the inner tube, and a connecting pipe with an external thread is vertically connected to the two baffles, and the two baffles are respectively connected to the two ends of the inner tube through the connecting pipe; a wire threading through hole corresponding to the position of the inner tube is opened on the baffle; the baffle covers the pipe mouth of the outer tube.

[0006] During installation, the movable block is pressed to slowly push the wall sleeve into the wall hole. The outer tube is connected to the inner tube via a connecting rod, which provides a certain degree of protection for the inner tube. The inner tube and outer tube are fixedly connected to ensure the stability of the inner tube. This structure increases the service life of the inner tube. In addition, multiple telescopic clamps are installed between the inner and outer tubes. The movable block of the telescopic clamp, pushed by the compression spring, passes through the through hole of the outer tube and abuts against the inner wall of the wall through hole. The movable blocks of the multiple telescopic clamps all abut against the wall, thereby fixing the outer tube, which is effective. In addition, the baffle covers the outer tube to shield the wall through hole used for installing the wall sleeve, making the installation aesthetically pleasing. The wiring is passed through the inner tube and led out from the wiring holes of the two baffles, which is very convenient.

[0007] Preferably, a protective gasket is provided on the side wall of the baffle close to the inner tube, and the protective gasket is provided with anti-slip grooves. Such a reasonable structure ensures that both ends of the outer tube and the wall are in close contact with the baffle.

[0008] Preferably, the baffle is provided with a card slot, which is a rectangular structure. This arrangement is structurally reasonable and the card slot can be provided as needed.

[0009] Preferably, the plurality of mounting grooves are evenly arranged along the circumference of the inner wall of the outer tube. This arrangement is structurally reasonable.

[0010] Preferably, an anti-skid pad is fixedly connected to the side of the movable block away from the compression spring. The anti-skid pad can increase the friction between the movable block and the wall through hole, ensuring that the overall wall sleeve is installed stably and firmly.

[0011] Preferably, an information plate is provided on the outer wall of the outer tube. The information plate can record information such as the threading time, threading type and threading purpose, so as to facilitate subsequent inspection and maintenance.

[0012] Preferably, the baffle is a circular structure, and the diameter of the baffle is larger than the diameter of the pipe opening of the outer pipe. This arrangement is structurally reasonable.

[0013] Compared with the prior art, the technical solution provided by the utility model has the following technical effects: in the utility model, the outer tube is connected to the inner tube, which protects the inner tube; the outer tube can be installed by setting a limit groove, an installation groove, a through hole and a telescopic clamp; the movable block of the telescopic clamp passes through the through hole of the outer tube and abuts against the inner wall of the through hole in the wall under the push of the compression spring; the movable blocks of multiple telescopic clamps all abut against the wall, thereby fixing the outer tube, and the fixing effect is good; it is easy to install, saves time and effort, and uses two baffles to install and fix the inner tube and the outer tube to the wall, which plays a fixing role and makes the installation more beautiful and simple; the wall sleeve can also be directly cut according to size requirements when in use, and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a wall bushing that is easy to fix in one embodiment of the present utility model;

[0017] Figure 2 This is a structural diagram of the baffle described in a certain embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the inner tube and the outer tube in a certain embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the telescopic clip in a certain embodiment of the present invention.

[0020] In the figure: 1. Outer tube; 2. Information plate; 3. Through hole; 4. Baffle; 5. Slot; 6. Protective gasket; 7. Connecting tube; 8. External thread; 9. Connecting rod; 10. Inner tube; 11. Internal thread; 12. Mounting slot; 13. Limiting slot; 14. Outer cylinder; 15. Compression spring; 16. Movable block; 17. Anti-slip pad; 18. Through hole for threading. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0022] In this description, it should be noted that the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms based on specific circumstances.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] The following is combined with Figures 1 to 4 The specific embodiments of the present utility model are described in detail.

[0025] In one embodiment, Figure 1 As shown, a wall-penetrating sleeve that is easy to fix is ​​disclosed, comprising an inner tube 10 and an outer tube 1 arranged coaxially and two baffles 4. The inner tube 10 and the outer tube 1 are fixedly connected by a plurality of connecting rods 9 arranged along the axes of the inner tube 10 and the outer tube 1, and the connecting rods 9 are evenly distributed along the circumference of the inner tube 10 and the outer tube 1; a plurality of mounting grooves 12 are opened on the inner wall of the outer tube 1 along its axial direction, and a plurality of through holes 3 penetrating the wall of the outer tube 1 are opened at the bottom of the mounting grooves 12, a plurality of limiting grooves 13 corresponding to the position of each through hole 3 are opened on the outer wall of the inner tube 10, and a telescopic clamp is installed in the limiting groove 13; the telescopic clamp comprises an outer cylinder 14, a compression spring 15 and a movable block 16, the outer cylinder 14 is a cylindrical structure with a bottom and no top, and the compression spring 15 is provided with a plurality of through holes 3 penetrating the wall of the outer tube 1 The movable block 16 is connected to the bottom of the outer shell, the extension and contraction direction of the compression spring 15 is consistent with the axis of the outer cylinder 14, the bottom of the outer cylinder 14 is fixed to the limit groove 13, and the top of the outer cylinder 14 is stuck in the mounting groove 12 at the corresponding through hole 3. The axis of the outer cylinder 14 is located in the radial direction of the inner tube 10 or the outer tube 1, and the through hole 3 is used to avoid the movable block 16 at the end of the compression spring 15; an internal thread 11 is provided on the inner wall of the inner tube 10, and the two baffles 4 are vertically connected to a connecting pipe 7 with an external thread 8, and the two baffles 4 are respectively threadedly connected to the two ends of the inner tube 10 through the connecting pipe 7; a wire threading through hole 18 corresponding to the position of the inner tube 10 is opened on the baffle 4; the baffle 4 covers the pipe mouth of the outer tube 1.

[0026] During installation, the movable block 16 is pressed to slowly push the wall sleeve into the wall through-hole 3. The outer tube 1 is connected to the inner tube 10 by the connecting rod 9, which plays a certain protective role for the inner tube 10. The inner tube 10 is fixedly connected to the outer tube 1, ensuring the stability of the inner tube 10. This structure increases the service life of the inner tube 10. In addition, multiple telescopic clamps are installed between the inner tube 10 and the outer tube 1. The movable block 16 of the telescopic clamp passes through the through-hole 3 of the outer tube 1 and abuts against the inner wall of the wall through-hole 3 under the push of the compression spring 15. The movable blocks 16 of the multiple telescopic clamps all abut against the wall, thereby fixing the outer tube 1, which has a good use effect. In addition, the baffle 4 covers the outer tube 1 to shield the wall through-hole 3 used for installing the wall sleeve, which plays an aesthetically pleasing role in installation. The wiring is passed through the inner tube 10 and led out from the wire-threading holes 18 of the two baffles 4, which is very convenient.

[0027] Based on the above embodiment, in a preferred embodiment, a protective gasket 6 is provided on the side wall of the baffle 4 near the inner tube 10, and the protective gasket 6 is provided with anti-slip grooves. This configuration is reasonable and ensures that both ends of the outer tube 1 and the wall are in close contact with the baffle 4.

[0028] Based on the above embodiment, in a preferred embodiment, a slot 5 is formed on the baffle 4, and the slot 5 is a rectangular structure. This arrangement is structurally reasonable and the slot 5 can be arranged as needed.

[0029] On the basis of the above embodiment, in a preferred embodiment, a plurality of mounting grooves 12 are evenly arranged along the circumference of the inner wall of the outer tube 1. Such a configuration is structurally reasonable.

[0030] Based on the above embodiment, in a preferred embodiment, an anti-slip pad 17 is fixedly connected to the side of the movable block 16 away from the compression spring 15. The provision of the anti-slip pad 17 can increase the friction between the movable block 16 and the wall through hole 3, ensuring that the entire wall sleeve is installed stably and firmly.

[0031] Based on the above embodiment, in a preferred embodiment, an information plate 2 is provided on the outer wall of the outer tube 1. The information plate 2 can record information such as the threading time, threading type, and threading purpose, which is convenient for subsequent inspection and maintenance.

[0032] On the basis of the above embodiment, in a preferred embodiment, the baffle 4 is a circular structure, and the diameter of the baffle 4 is larger than the diameter of the tube opening of the outer tube 1. Such a configuration is reasonable.

[0033] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. A wall bushing that is easy to fix, characterized in that: The invention comprises a coaxially arranged inner tube (10) and outer tube (1) and two baffles (4); the inner tube (10) and outer tube (1) are fixedly connected by a plurality of connecting rods (9) arranged along the axes of the inner tube (10) and the outer tube (1), and the connecting rods (9) are evenly distributed along the circumference of the inner tube (10) and the outer tube (1); a plurality of mounting grooves (12) are opened on the inner wall of the outer tube (1) along its axial direction, and a plurality of through holes (3) penetrating the tube wall of the outer tube (1) are opened at the bottom of the mounting grooves (12); a plurality of limiting grooves (13) corresponding to the position of each through hole (3) are opened on the outer wall of the inner tube (10), and a telescopic clamp is installed in the limiting groove (13); the telescopic clamp comprises an outer cylinder (14), a compression spring (15) and a movable block (16); the outer cylinder (14) is a cylindrical structure with a bottom and no top, and the compression spring (15) connects the movable block (16) to the outer shell The bottom of the outer cylinder (14) is fixed to the limiting groove (13), and the top of the outer cylinder (14) is clamped to the mounting groove (12) at the corresponding through hole (3). The axis of the outer cylinder (14) is located in the radial direction of the inner tube (10) or the outer tube (1). The through hole (3) is used to avoid the movable block (16) at the end of the compression spring (15); an internal thread (11) is provided on the inner wall of the inner tube (10), and the two baffles (4) are vertically connected to a connecting pipe (7) provided with an external thread (8). The two baffles (4) are respectively threadedly connected to the two ends of the inner tube (10) through the connecting pipe (7); a threading through hole (18) corresponding to the position of the inner tube (10) is opened on the baffle (4); the baffle (4) covers the pipe opening of the outer tube (1).

2. A wall bushing that is easy to fix according to claim 1, characterized in that: A protective gasket (6) is provided on the side wall of the baffle (4) close to the inner tube (10), and anti-slip grooves are provided on the protective gasket (6).

3. A wall bushing that is easy to fix according to claim 2, characterized in that: A card slot (5) is provided on the baffle (4), and the card slot (5) is a rectangular structure.

4. A wall bushing that is easy to fix according to any one of claims 1 to 3, characterized in that: A plurality of mounting grooves (12) are evenly arranged along the circumference of the inner wall of the outer tube (1).

5. The wall bushing that is easy to fix according to claim 4, characterized in that: An anti-slip pad (17) is fixedly connected to the side of the movable block (16) away from the compression spring (15).

6. The wall bushing that is easy to fix according to claim 5, characterized in that: An information plate (2) is provided on the outer wall of the outer tube (1).

7. The wall bushing that is easy to fix according to claim 6, characterized in that: The baffle (4) is a circular structure, and the diameter of the baffle (4) is larger than the diameter of the tube opening of the outer tube (1).

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