Sealing brush assembly

Abstract

The utility model belongs to the field of shield tail brushes, and discloses a sealing brush assembly which comprises a brush body, a connecting plate and a fixing assembly, the brush body is arranged on the connecting plate, the first end of the connecting plate is connected to an installation body through the fixing assembly, and the second end of the connecting plate is connected with the installation body through the fixing assembly or a clamping assembly. The mounting body is a shield tail or a channel component for shield receiving; the fixing assembly comprises a connecting piece, and the connecting plate is fixedly connected with the mounting body through the connecting piece; the clamping assembly comprises a positioning piece fixed to the installation body, the positioning piece is provided with a positioning groove, and the second end of the connecting plate is clamped into the positioning groove. The sealing device can be used as a shield tail brush or a sealing component installed in a steel sleeve, is convenient to disassemble and assemble, avoids the problems that disassembly and assembly are inconvenient and the environment is polluted when disassembly is carried out due to welding connection, can inject grease into the sealing device for grease sealing, and is more convenient and faster to inject.

Description

Technical Field

[0001] The utility model belongs to the technical field of shield tail brushes, and particularly relates to a sealing brush assembly. Background Art

[0002] With the large-scale promotion of urban rail transit in China, shield technology has become more and more mature and reliable. In the shield industry, a construction concept of using shields whenever possible has been formed. Shield machines produced in China are being widely used in the country and are accelerating their entry into the international market. The related technologies of starting and receiving with steel sleeves have also developed differently and are being gradually promoted. Shield tail brushes are widely used on shield machines, and shield tail brushes are also gradually used for sealing on steel sleeves.

[0003] When fixing traditional shield tail brushes to shields and steel sleeves, the base of the shield tail brush is generally welded to the inner wall of the shield and the steel sleeve by welding. This traditional process requires a large amount of manpower, material resources and time when welding or replacing the shield tail brush. During the process of welding or replacing the tail brush, electric welding and gas gouging are required for operation, which causes relatively large pollution to the air. And before the shield starts, in order to meet the sealing requirements of the shield tail brush, the steel wires on the tail brush must be manually separated, and then shield tail grease is filled into the separated steel wires. This operation requires a large amount of labor to complete. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a sealing brush assembly to solve the problems that the existing sealing brush is not conducive to disassembly and assembly and it is relatively difficult to fill grease.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sealing brush assembly includes a brush body, a connecting plate and a fixing component. The brush body is arranged on the connecting plate. The first end of the connecting plate is connected to the installation body through the fixing component, and the second end of the connecting plate is connected to the installation body through the fixing component or a clamping component. The installation body is a shield tail or a channel member for shield receiving.

[0007] The fixing component includes a connecting piece, and the connecting piece fixedly connects the connecting plate and the installation body; the clamping component includes a positioning piece fixed on the installation body, the positioning piece is provided with a positioning groove, and the second end of the connecting plate is clamped into the positioning groove.

[0008] The brush body is provided with a grease injection pipe penetrating into its inner side.

[0009] In a possible implementation manner, the connecting piece is a fastener, a connecting hole is arranged on the connecting plate, and the fastener passes through the connecting hole and is fixedly connected to the installation body.

[0010] In a possible implementation, the fixing component further includes a connecting seat fixed on the installation body. The connecting seat is provided with a connecting groove with an internally mounted connecting nut, and the connecting member passes through the connecting plate and is threadedly connected to the connecting nut in the connecting groove.

[0011] In a possible implementation, the cross-section of the connecting groove is C-shaped and penetrates the connecting seat along the length direction, and the connecting member can move along the length direction in the connecting groove.

[0012] In a possible implementation, the fixing component further includes a support member having the same height as the connecting seat. The support member supports the connecting plate to make the connecting plate parallel to the inner wall of the installation body.

[0013] In a possible implementation, the second end is connected to the installation body through a clamping assembly, and the second end of the connecting plate is a bent structure to be clamped into the positioning groove.

[0014] In a possible implementation, both the first end and the second end of the connecting plate are connected to the installation body through the fixing component.

[0015] In a possible implementation, the brush body is a spring steel wire brush. The spring steel wire brush includes a pressing block, an upper support plate, a lower support plate and a wire bundle. The pressing block and the connecting plate form an installation groove. The wire bundle is clamped between the upper support plate and the lower support plate and is pressed and fixed in the installation groove together;

[0016] A plurality of grease injection pipes are provided. One ends of the plurality of grease injection pipes all pass through the pressing block and extend into the wire bundle, and the other ends of the grease injection pipes are provided with injection joints.

[0017] In a possible implementation, the injection joint is provided with an interface communicated with the grease injection pipe, and the inner wall of the interface is provided with internal threads.

[0018] In a possible implementation, the connecting hole is an oval long hole.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The sealing brush assembly of the present utility model can be used as a tail seal brush or a sealing component installed in a steel sleeve. It is fixed on the tail seal or the steel sleeve through the fixing component or the clamping assembly at both ends, which is convenient for disassembly and installation, and avoids the problems of inconvenient disassembly and installation and environmental pollution caused by welding connection. And by providing the grease injection pipe, grease can be injected into the interior for grease sealing, and the filling is more convenient and fast. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the installation structure of the existing tail seal brush;

[0022] Figure 2Schematic diagram of a structure where a sealing brush assembly is connected by a fixing component at one end and a clamping component at the other end;

[0023] Figure 3 It is Figure 2 Stereoscopic schematic diagram of the brush body and the connecting plate of the structure shown;

[0024] Figure 4 Schematic diagram of a structure where a sealing brush assembly is connected by fixing components mainly including connecting pieces at both ends;

[0025] Figure 5 Schematic diagram of a structure where a sealing brush assembly is connected by fixing components including connecting pieces, connecting seats and support blocks at both ends;

[0026] Figure 6 It is Figure 5 Stereoscopic view of the structure shown;

[0027] Figure 7 Schematic diagram of a structure where a sealing brush assembly is connected by a fixing component including connecting pieces, connecting seats and support blocks at one end and a clamping component at the other end;

[0028] Figure 8 Schematic diagram of a structure where a sealing brush assembly is installed by a fixing component with double-row bolts at one end and is not fixed at the other end.

[0029] In the figure: 01 - shield tail; 02 - base; 1 - connecting plate; 11 - connecting hole; 12 - bending structure; 2 - brush body; 21 - pressing block; 22 - lower support plate; 23 - upper support plate; 24 - wire bundle; 25 - injection joint; 26 - bolt member; 27 - grease injection pipe; 3 - fixing component; 31 - connecting piece; 32 - connecting seat; 33 - connecting groove; 34 - connecting nut; 35 - support member; 4 - clamping component; 41 - positioning piece. Specific embodiments

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0031] Please refer to Figure 1As shown in the figure, the existing tail seal brush 01 mainly includes a U-shaped base 02 and a brush body 2 arranged inside the base 02. Its fixing method is generally to directly weld the two sides of the base 02 to the inner wall of the tail seal 01 or the inner wall of the steel sleeve. However, through such an installation method, a large amount of manpower, material resources and time are required during welding or replacing the tail seal brush 01. During the process of welding or replacing the tail brush, electric welding and air gouging are needed for operation, which causes relatively large pollution to the air. And before the shield starts, in order to meet the sealing requirements of the tail seal brush 01, the steel wires on the tail brush must be manually separated, and then tail seal grease 01 is filled into the separated steel wires. This operation requires a large amount of labor to complete.

[0032] To solve the above problems, please refer to Figure 2-7 As shown in the figure, an embodiment of the present application provides a sealing brush assembly, including a brush body 2, a connecting plate 1 and a fixing component 3. The brush body 2 is arranged on the connecting plate 1. The first end of the connecting plate 1 is connected to the installation body through the fixing component 3, and the second end of the connecting plate 1 is connected to the installation body through the fixing component 3 or a clamping component 4. The installation body is the tail seal 01 of the shield or a channel component for shield reception.

[0033] Among them, the brush body 2 is fixed on the connecting plate 1 and forms an integral body. During installation, it only needs to be connected through the connecting plate 1 for installation. At least one end of the two ends of the connecting plate 1 is connected to the installation body through the fixing component 3, and the other end can be connected to the fixing component 3 or the clamping component 4 according to requirements. The installation body can be the tail seal 01 of the shield machine or a channel component such as a steel sleeve for receiving the shield. When installed on the tail seal 01 of the shield machine, the sealing brush assembly is installed on the circumferential inner wall of the tail seal 01 and can cooperate with the masonry tunnel segment for sealing. When installed on a channel component such as a steel sleeve, the channel component can form a seal with the outer wall of the shield through the sealing brush assembly.

[0034] In the embodiment of the present application, the fixing component 3 includes but is not limited to a connecting piece 31, and the connecting piece 31 fixedly connects the connecting plate 1 and the installation body.

[0035] The connecting piece 31 is used to fixedly connect the connecting plate 1 and the installation body. It can achieve connection alone or in cooperation with other components. In the specific implementation process, the connecting piece 31 can be a fastener such as a bolt. Correspondingly, the connecting plate 1 and the installation body are provided with openings for connection to achieve connection.

[0036] The card-mounted component 4 may include a positioning member 41 fixed on the mounting body. The positioning member 41 is provided with a positioning groove, and the second end of the connecting plate 1 is snapped into the positioning groove. Since one end of the connecting plate 1 is fixed by the fixing component 3, the other end of the connecting plate 1 does not need to be fixed. In the embodiment of the present application, the other end is positioned by a snap-fitting and positioning method, so that the installation of the brush body 2 can be realized. Among them, the positioning groove of the positioning member 41 can be used for the second end of the connecting plate 1 to be snapped into. After being snapped in, it can limit the connecting plate 1, and then the first end is installed through the fixing component 3, so that the installation of the brush body 2 can be realized and it is also convenient for disassembly. In the specific implementation process, the positioning member 41 is fixed on the inner wall of the mounting body by welding, and its structure can be L-shaped, so that a positioning groove can be formed with the inner wall of the mounting body for snapping in after installation.

[0037] Preferably, the brush body 2 is provided with a grease injection pipe 27 penetrating into its inner side. The brush body 2 can be a spring steel wire brush or a spring steel plate brush. As a common sealing component for shield receiving seals, the brush body 2 can achieve a good sealing effect. And by setting the grease injection pipe 27, grease can be injected and filled between the inner steel wires or steel plates, so as to obtain a better sealing effect.

[0038] Through the above technical solutions, the sealing brush assembly can be used as a tail seal 01 brush or a sealing component installed in the steel sleeve. By fixing both ends on the tail seal 01 or the steel sleeve by the fixing component 3 or the card-mounted component 4, it is convenient for disassembly and installation, avoiding the problems of inconvenient disassembly and installation and environmental pollution caused by welding connection. And by setting the grease injection pipe 27, grease can be injected into the interior for grease sealing, and the filling is more convenient and fast.

[0039] In one embodiment, the connecting member 31 is a fastener. The connecting plate 1 is provided with a connecting hole 11, and the fastener passes through the connecting hole 11 and is fixedly connected to the mounting body.

[0040] In this way, by using the fastener as the connecting member 31, when installing the first end of the connecting plate 1, the fastener directly passes through the connecting hole 11 and is connected to the mounting body. Such a connection structure is simpler and can also achieve the purpose of being convenient for disassembly and installation.

[0041] In another embodiment, the fixing component 3 may further include a connection seat 32 fixed on the mounting body. The connection seat 32 is provided with a connection groove 33 with an internal connection nut 34. The connecting member 31 passes through the connecting plate 1 and is threadedly connected to the connection nut 34 in the connection groove 33.

[0042] In this way, the connecting seat 32 can cooperate for connection. The connecting seat 32 can be fixed to the installation body first by welding or integrally manufactured, and when installing the brush body 2, the connecting plate 1 is then connected to the connecting nut 34 in the connecting groove 33 of the connecting seat 32 through the connecting piece 31, so as to achieve fixed connection in this way. This connection method can avoid drilling holes in the installation body and is more convenient.

[0043] On this basis, the connecting groove 33 can adopt a structure with a C-shaped cross-section and runs through the connecting seat 32 along the length direction. The connecting piece 31 can move along the length direction in the connecting groove 33. Such a structure of the connecting groove 33 can facilitate the movement of the connecting nut 34 in the connecting groove 33, and then the connection position of the connecting plate 1 relative to the base can be adjusted, which can avoid the problem of difficult connection caused by errors. It can be understood that the connecting nut 34 cannot rotate in the connecting groove 33 and can only move along the length direction. The connecting nut 34 can adopt a hexagonal or square nut that is convenient for forming a stop with the inner wall of the connecting groove 33 in the circumferential direction.

[0044] Furthermore, the fixing component 3 can further include a support member 35 having the same height as the connecting seat 32. The support member 35 supports the connecting plate 1 to make the connecting plate 1 parallel to the inner wall of the installation body.

[0045] In this way, through the support member 35, the connecting plate can be made parallel to the inner wall of the installation body, so that the brush body 2 can maintain a preset posture for sealing.

[0046] In one embodiment, when the second end of the connecting plate 1 is connected to the installation body by the clamping component 4, since the main body of the connecting plate 1 is parallel to the inner wall of the installation body through the support frame, there will be a height difference between the second end and the installation body to be clamped and connected. Therefore, the second end of the connecting plate 1 is designed as a bent structure 12, which can facilitate it to be clamped into the positioning groove.

[0047] Specifically, the bent structure 12 is generally L-shaped, and it forms a structure similar to a Z-shape with the main body of the connecting plate 1, so that the problem of height difference can be solved and it can be easily clamped in.

[0048] In another embodiment, both the first end and the second end of the connecting plate 1 are connected to the installation body through the fixing component 3. Connecting both ends through the fixing component 3 can avoid drilling holes in the installation body and is more convenient for installation.

[0049] In a preferred embodiment of a spring wire brush, the brush body 2 is a spring wire brush, which includes a clamping block 21, an upper support plate 23, a lower support plate 22 and a wire bundle 24. The clamping block 21 and the connecting plate 1 form a mounting groove, and the wire bundle 24 is clamped between the upper support plate 23 and the lower support plate 22 and pressed and fixed in the mounting groove together; a plurality of grease injection tubes 27 are provided, and one end of the plurality of grease injection tubes 27 passes through the clamping block 21 and extends into the wire bundle 24, and an injection joint 25 is provided at the other end of the grease injection tube 27.

[0050] The clamping block 21 is an L-shaped structure, which is welded and connected to the connecting plate 1, so that a mounting groove can be formed. The steel wire bundle 24 is bundled, clamped between the upper support plate 23 and the lower support plate 22, and fixed together in the mounting groove. The injection joint of the grease injection pipe 27 is exposed to the outside, which can be easily connected to the pipeline connected to the oil pump, so that grease can be added, and the filling is more convenient. During production, one or two grease injection pipes 27 can be pre-installed between the clamping block 21 and the connecting plate 1. The end of the grease injection pipe 27 has a threaded hole, which is convenient for connecting the shield tail 01 grease injection pipe 27. A grease pump is used to fill the shield tail 01 grease between the steel wire bundle 24 inside the brush body 2. The traditional filling method is to manually break the steel wire inside the shield tail 01 brush, and then manually fill the shield tail 01 grease, which is inefficient. After the grease is filled, the grease pipeline inside the tail brush is blocked with bolt components 26.

[0051] In order to facilitate the connection with the pipeline, the injection joint 25 is provided with an interface connected to the grease injection pipe 27, and the inner wall of the interface is provided with internal threads. Correspondingly, the joint of the pipeline is provided with external threads, and the threads of the two can realize a detachable connection, which is more convenient.

[0052] Specifically, the connecting hole 11 is a waist-shaped long hole. The waist-shaped long hole can be used to adjust the position of the connecting piece 31 so that it has a certain amount of movement in the circumference direction of the shield tail 01 or the steel sleeve, which is convenient for the installation of the sealing brush assembly, and then better connected to the installation body through the fixing assembly 3. Preferably, the waist-shaped long holes on the connecting plate 1 can be a pair of two, or two pairs of four.

[0053] When producing the sealing brush assembly, two waist-shaped long holes can be pre-punched at the front end of the connecting plate 1, and two waist-shaped long holes can be punched at the rear end, so that the sealing brush assembly can be connected to the inner wall of the shield tail 01 of the shield machine through bolts. The front end of the connecting plate 1 can also be extended, and four waist-shaped long holes can be punched at the front end, and connected to the inner wall of the shield tail 01 with bolts. In this way, the traditional welding process between the traditional shield tail 01 brush and the inner wall of the shield tail 01 of the shield machine is eliminated.

[0054] In other embodiments, in combination Figure 8As shown in the figure, after one end of the connecting plate 1 is fixed by the fixing component 3 of the double-row bolts, the other end does not need to be fixed anymore, and the fixing of the sealing brush component can be basically realized. Such a structure is more simplified, the installation is more convenient, and the disassembly is also more convenient.

[0055] The above is only the preferred embodiment of the present invention. It should be noted that the above preferred embodiment should not be regarded as a limitation of the present invention. The protection scope of the present invention should be subject to the scope defined by the claims. For those of ordinary skill in the art, without departing from the spirit and scope of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A sealing brush assembly, characterized in that: The invention comprises a brush body (2), a connecting plate (1) and a fixing assembly (3), wherein the brush body (2) is arranged on the connecting plate (1), the first end of the connecting plate (1) is connected to a mounting body via the fixing assembly (3), the second end of the connecting plate (1) is connected to the mounting body via the fixing assembly (3) or the clamping assembly (4), and the mounting body is a shield tail (01) or a channel component for receiving a shield machine; The fixing assembly (3) comprises a connecting piece (31), and the connecting piece (31) fixedly connects the connecting plate (1) to the mounting body; the clamping assembly (4) comprises a positioning piece (41) fixed to the mounting body, and the positioning piece (41) is provided with a positioning groove, and the second end of the connecting plate (1) is clamped into the positioning groove; The brush body (2) is provided with a grease injection tube (27) penetrating into the inner side thereof.

2. A sealing brush assembly according to claim 1, characterized in that: The connecting piece (31) is a fastener, and a connecting hole (11) is provided on the connecting plate (1). The fastener passes through the connecting hole (11) and is fixedly connected to the mounting body.

3. A sealing brush assembly according to claim 1, characterized in that: The fixing assembly (3) also includes a connecting seat (32) fixed on the mounting body, the connecting seat (32) is provided with a connecting groove (33) with a built-in connecting nut (34), and the connecting piece (31) passes through the connecting plate (1) and is threadedly connected to the connecting nut (34) in the connecting groove (33).

4. A sealing brush assembly according to claim 3, characterized in that: The cross section of the connecting groove (33) is C-shaped and penetrates the connecting seat (32) along the length direction. The connecting piece (31) can move along the length direction in the connecting groove (33).

5. A sealing brush assembly according to claim 3, characterized in that: The fixing assembly (3) further comprises a support member (35) having the same height as the connecting seat (32), wherein the support member (35) supports the connecting plate (1) so that the connecting plate (1) is parallel to the inner wall of the installation body.

6. A sealing brush assembly according to claim 5, characterized in that: The second end is connected to the mounting body via a clamping assembly (4), and the second end of the connecting plate (1) is a bent structure (12) for clamping into the positioning groove.

7. A sealing brush assembly according to any one of claims 3 to 5, characterized in that: The first end and the second end of the connecting plate (1) are both connected to the mounting body via a fixing assembly (3).

8. A sealing brush assembly according to any one of claims 1 to 6, characterized in that: The brush body (2) is a spring steel wire brush, and the spring steel wire brush comprises a pressing block (21), an upper supporting plate (23), a lower supporting plate (22) and a steel wire bundle (24); the pressing block (21) and the connecting plate (1) form a mounting groove, and the steel wire bundle (24) is clamped between the upper supporting plate (23) and the lower supporting plate (22) and is pressed and fixed in the mounting groove together; A plurality of grease injection pipes (27) are provided, one end of each of the plurality of grease injection pipes (27) passes through the pressing block (21) and extends into the steel wire bundle (24), and the other end of the grease injection pipe (27) is provided with an injection joint (25).

9. A sealing brush assembly according to claim 8, characterized in that: The injection joint (25) is provided with an interface communicating with the grease injection pipe (27), and the inner wall of the interface is provided with an internal thread.

10. A sealing brush assembly according to claim 2, characterized in that: The connecting hole (11) is a waist-shaped long hole.

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