Laminated sealing tail brush

Abstract

The utility model discloses a laminated sealing tail brush which comprises a shield tunneling machine shell, a base plate fixed on the shield tunneling machine shell and a brush body detachably and fixedly installed on the base plate, the base plate is fixedly connected with at least two internal thread bushings, the brush body is provided with positioning holes with the same number, and when the brush body is installed on the base plate, the brush body is fixedly connected with the internal thread bushings. The device further comprises a strip-shaped shell, studs which are the same as the internal thread sleeves in number and correspond to the internal thread sleeves in position are rotationally inserted into the inner bottom wall of the strip-shaped shell, worm wheels are fixedly connected to the upper ends of the studs, and a driving assembly for driving the worm wheels to rotate at the same time is arranged in the strip-shaped shell. The bottom of the strip-shaped shell is fixedly connected with a pressing strip. According to the utility model, the internal thread bushing penetrates through the positioning hole to realize the positioning purpose, and the worm gear and the stud are driven to rotate through the driving assembly, so that the stud is screwed into the internal thread bushing, the pressing strip is propped against and contacted with the brush body, and at the moment, the brush body is quickly mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine tail brushes, in particular to a sandwich rubber sealing tail brush. Background Technique

[0002] The sandwich rubber sealing tail brush refers to a tail brush design with the function of clamping rubber strips and sealing. The tail brushes used in shield machines or other engineering equipment usually need to have the functions of cleaning and sealing to ensure the cleanliness of the tunnel wall surface and prevent the leakage of mud, water and other substances. The installation of the shield tail brush is a very crucial link. During the starting or tunneling process of the shield machine, it is necessary to install or replace the shield tail brush to ensure good sealing and water-stop effect.

[0003] The shield tail brush is usually installed on the inner side of the shield machine shell by bolts or welding. When replacing the shield tail brush, due to the adhesion of mud to the surface of the shield tail brush, the process of removing the worn shield tail brush or loosening the bolts is rather troublesome. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a sandwich rubber sealing tail brush, which solves the problems put forward in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: a sandwich rubber sealing tail brush, including a shield machine shell, a substrate fixed on the shield machine shell, and a brush body detachably and fixedly installed on the substrate. At least two internal thread sleeves are fixedly connected to the substrate, and the same number of positioning holes are opened on the brush body. When the brush body is installed on the substrate, the internal thread sleeves pass through the positioning holes to achieve the positioning purpose;

[0008] It also includes a strip-shaped shell. The same number of studs corresponding to the internal thread sleeves in position are rotatably inserted into the inner bottom wall of the strip-shaped shell. The upper ends of the studs are fixedly connected with worm wheels. A driving component for driving multiple worm wheels to rotate simultaneously is arranged inside the strip-shaped shell. A pressing strip is fixedly connected to the bottom of the strip-shaped shell. When fixing the brush body, the studs are threadedly inserted into the internal thread sleeves, and the pressing strip is simultaneously in contact with the brush body.

[0009] Preferably, the driving component includes a worm meshed with multiple worm wheels. A support is fixedly connected to the inner bottom wall of the strip-shaped shell. The middle part of the worm is rotatably inserted into the support. One end of the worm penetrates to the outside of the strip-shaped shell and is fixedly connected with a knob.

[0010] Preferably, the number of the pressing strips is two, and they are distributed on both sides of the stud.

[0011] Preferably, jacks are provided on the surface of the brush body, and an auxiliary locking component is fixedly connected to the substrate.

[0012] Preferably, the auxiliary locking component includes a support block fixed to the substrate and a bolt inserted into the support block. A stop piece is fixedly connected to the bolt, a spring is arranged between the stop piece and the support block, the spring is sleeved on the bolt, and a pull block is fixedly connected to the other end of the bolt.

[0013] Preferably, a chute is provided on the support block, and a slider is fixedly connected to the bolt. When the bolt is inserted into the jack, the slider is arranged in the chute.

[0014] (III) Beneficial effects

[0015] The utility model provides a laminated sealing tail brush, which has the following beneficial effects:

[0016] 1. In the utility model, when the brush body is installed on the substrate, the inner threaded sleeve passes through the positioning hole for positioning. Then, the stud is aligned with the inside of the inner threaded sleeve, and then the knob is rotated to drive the worm to rotate. The worm drives the two worm wheels to rotate synchronously, and the worm wheels drive the stud to rotate, so that the stud is screwed into the inside of the inner threaded sleeve until the pressing strip abuts against the brush body. At this time, the quick installation of the brush body is realized; when disassembly is required, it is the reverse process of the above process, which is also convenient and fast, thus solving the problem of inconvenient disassembly and assembly in the prior art.

[0017] 2. In the utility model, when the pull block is rotated, the positions of the slider and the chute are corresponding. At this time, the spring loses restraint and releases elastic force to push the stop piece to move, so that the bolt is inserted into the jack, and at the same time, the slider enters the inside of the chute, thus realizing the auxiliary fixation of the brush body. Description of the drawings

[0018] Figure 1 is a combined three-dimensional structure diagram of a laminated sealing tail brush proposed by the utility model;

[0019] Figure 2 is a three-dimensional structure diagram of the brush body of a laminated sealing tail brush proposed by the utility model;

[0020] Figure 3 is a connection structure diagram of the shield machine shell and the substrate of a laminated sealing tail brush proposed by the utility model;

[0021] Figure 4 is Figure 3 the enlarged structure diagram at A of;

[0022] Figure 5 is the internal structure diagram of the strip-shaped shell of a laminated sealing tail brush proposed by the utility model.

[0023] In the figure: 1. Shield machine housing; 2. Substrate; 3. Brush body; 301. Positioning hole; 302. Socket; 4. Internal thread sleeve; 5. Strip-shaped shell; 6. Worm gear; 7. Stud; 8. Worm; 9. Knob; 10. Support; 11. Pressure strip; 12. Support block; 121. Slide groove; 13. Pin; 14. Spring; 15. Retaining plate; 16. Slide block; 17. Pulling block. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a laminated sealing tail brush, including a shield machine housing 1, a substrate 2 fixed on the shield machine housing 1, and a brush body 3 detachably and fixedly installed on the substrate 2. At least two internal thread sleeves 4 are fixedly connected to the substrate 2, and a same number of positioning holes 301 are provided on the brush body 3. The internal thread sleeve 4 has internal threads, and the outer diameter of the internal thread sleeve 4 matches the inner diameter of the positioning hole 301. When the brush body 3 is installed on the substrate 2, the internal thread sleeve 4 is arranged through the positioning hole 301 to achieve the positioning purpose;

[0026] It further includes a strip-shaped shell 5. The inner bottom wall of the strip-shaped shell 5 is rotatably inserted with studs 7 having the same number and corresponding positions as the internal thread sleeves 4. The part of the stud 7 in contact with the strip-shaped shell 5 is a smooth rod structure. The upper end of the stud 7 is fixedly connected with a worm gear 6. A driving component for driving a plurality of worm gears 6 to rotate simultaneously is arranged inside the strip-shaped shell 5. The bottom of the strip-shaped shell 5 is fixedly connected with a pressure strip 11. When fixing the brush body 3, the stud 7 is threadedly inserted into the internal thread sleeve 4, and the pressure strip 11 is simultaneously in contact with the brush body 3.

[0027] The driving component includes a worm 8 meshed with a plurality of worm gears 6. The inner bottom wall of the strip-shaped shell 5 is fixedly connected with a support 10. The middle part of the worm 8 is rotatably inserted into the support 10. One end of the worm 8 penetrates to the outside of the strip-shaped shell 5 and is fixedly connected with a knob 9.

[0028] When the brush body 3 is installed on the substrate 2, the internal thread sleeve 4 is arranged through the positioning hole 301 to achieve the positioning purpose. Then, the stud 7 is aligned with the inside of the internal thread sleeve 4. Next, the knob 9 is rotated to drive the worm 8 to rotate. The worm 8 drives two worm gears 6 to rotate synchronously. The worm gear 6 drives the stud 7 to rotate, so that the stud 7 is screwed into the internal thread sleeve 4 until the pressure strip 11 is in contact with the brush body 3. At this time, the rapid installation of the brush body 3 is realized; when disassembly is required, it is the reverse process of the above process, which is also convenient and fast, thus solving the problem that the brush body 3 is inconvenient to disassemble and assemble in the prior art.

[0029] Specifically, the number of the laths 11 is two, and they are distributed on both sides of the stud 7, so that the pressing force is balanced and the fixing effect is better.

[0030] In addition, in order to further lock the brush body 3, a jack 302 is formed on the surface of the brush body 3, and an auxiliary locking component is fixedly connected to the substrate 2.

[0031] The auxiliary locking component includes a support block 12 fixed to the substrate 2, a latch 13 inserted into the support block 12, a retaining piece 15 fixedly connected to the latch 13, a spring 14 disposed between the retaining piece 15 and the support block 12, the spring 14 is sleeved on the latch 13, and the other end of the latch 13 is fixedly connected to a pulling block 17.

[0032] A chute 121 is formed on the support block 12, a slider 16 is fixedly connected to the latch 13, and when the latch 13 is inserted into the jack 302, the slider 16 is disposed in the chute 121.

[0033] Rotate the pulling block 17 to make the positions of the slider 16 and the chute 121 correspond. At this time, the spring 14 is released from restraint and releases elastic force to push the retaining piece 15 to move, so that the latch 13 is inserted into the jack 302, and at the same time the slider 16 enters the inside of the chute 121, thus realizing the auxiliary fixation of the brush body 3; during disassembly, pull the pulling block 17 to make the slider 16 move out of the chute 121, and then rotate the pulling block 17 to make the slider 16 abut against the side wall of the support block 12 to achieve blocking. At this time, the end of the latch 13 completely moves out of the inside of the jack 302.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laminated sealing tail brush, characterized by: The invention comprises a shield machine housing (1), a base plate (2) fixed on the shield machine housing (1), and a brush body (3) detachably fixedly mounted on the base plate (2); at least two internal thread sleeves (4) are fixedly connected to the base plate (2); the brush body (3) is provided with the same number of positioning holes (301); when the brush body (3) is mounted on the base plate (2), the internal thread sleeves (4) are arranged through the positioning holes (301) to achieve the purpose of positioning; The invention also comprises a strip shell (5), wherein the inner bottom wall of the strip shell (5) is rotatably inserted with studs (7) having the same number as the internal threaded sleeve (4) and corresponding positions, the upper ends of the studs (7) are fixedly connected with worm wheels (6), a driving assembly for driving a plurality of worm wheels (6) to rotate simultaneously is arranged inside the strip shell (5), a pressure strip (11) is fixedly connected to the bottom of the strip shell (5), and when the brush body (3) is fixed, the studs (7) are threadedly inserted inside the internal threaded sleeve (4), and the pressure strip (11) is in contact with the brush body (3) at the same time.

2. The rubber-laminated sealing tail brush according to claim 1, characterized in that: The driving assembly comprises a worm (8) meshing with a plurality of worm wheels (6); the inner bottom wall of the strip housing (5) is fixedly connected to a support (10); the middle part of the worm (8) is rotatably inserted into the support (10); one end of the worm (8) passes through the outside of the strip housing (5) and is fixedly connected to a knob (9).

3. The laminated sealing tail brush according to claim 1, characterized in that: The number of the pressure strips (11) is two and they are distributed on both sides of the stud (7).

4. The laminated sealing tail brush according to claim 1, characterized in that: The surface of the brush body (3) is provided with an insertion hole (302), and the base plate (2) is fixedly connected with an auxiliary locking component.

5. The laminated sealing tail brush according to claim 4, characterized in that: The auxiliary locking assembly comprises a support block (12) fixed on a base plate (2), a latch pin (13) inserted into the support block (12), a blocking piece (15) fixedly connected to the latch pin (13), a spring (14) arranged between the blocking piece (15) and the support block (12), the spring (14) sleeved on the latch pin (13), and a pull block (17) fixedly connected to the other end of the latch pin (13).

6. The laminated sealing tail brush according to claim 5, characterized in that: The support block (12) is provided with a slide groove (121), and the latch pin (13) is fixedly connected with a slider (16). When the latch pin (13) is inserted into the insertion hole (302), the slider (16) is arranged in the slide groove (121).

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