Reinforcing structure of shield tail sealing brush wire group

Abstract

The utility model provides a reinforcing structure of a shield tail sealing brush wire group, which relates to the technical field of shield tail sealing brushes, and comprises a shell plate, a protection plate assembly, a stainless steel wire group, a clamping structure, a connection reinforcing structure and a limiting fixing structure, according to the device, the shell plate and the protection plate assembly inserted into the shell plate are clamped through the clamping structure, the protection plate assembly and the stainless steel wire set inserted into the protection plate assembly are clamped, and the clamping ends of the shell plate, the protection plate assembly and the stainless steel wire set are connected and reinforced through the connection reinforcing structure; the end, inserted into the shell plate, of the protection plate assembly is limited and fixed in the shell plate through the limiting and fixing structure, installation of the brush piece is further reinforced, and the probability that the brush piece is damaged and falls off due to insufficient fixed connection strength is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tail seal brushes, in particular to a reinforcement structure for a wire group of a tail seal brush. Background Technique

[0002] In the existing tail seal brush, 4 layers of brushes are fixedly installed in the outer shell plate through pin columns. Both ends of the pin columns are fixed to the outer shell. The strength of this fixed connection is insufficient. When the attitude of the shield is poor and the deviation correction amplitude during tunneling is too large, the tail brush is subjected to a large extrusion strength, and local brush pieces are damaged and fall off due to insufficient fixed connection strength. Content of the Utility Model

[0003] The purpose of the utility model is to provide a reinforcement structure for a wire group of a tail seal brush, which has the advantage of multiple reinforcement for the installation of brush pieces, and solves the technical problem that local brush pieces are damaged and fall off due to insufficient fixed connection strength.

[0004] The utility model provides a reinforcement structure for a wire group of a tail seal brush, including:

[0005] An outer shell plate, in which a protection plate assembly is inserted;

[0006] A stainless steel wire group is inserted into the protection plate assembly;

[0007] A clamping structure is assembled between the inner cavity of the outer shell plate and the same-side end parts of the protection plate assembly and the stainless steel wire group;

[0008] A connection reinforcement structure is also assembled at the clamping ends of the outer shell plate, the protection plate assembly and the stainless steel wire group;

[0009] A limit fixing structure is assembled between the end part of the protection plate assembly located inside the outer shell plate and the front and rear edges of the outer shell plate.

[0010] As a further optimized scheme, in order to clamp the end part of the stainless steel wire group into the protection plate assembly and clamp the end part of the protection plate assembly into the outer shell plate, the clamping structure includes:

[0011] A clamping groove is opened in the inner cavity of the outer shell plate;

[0012] The size of the clamping groove gradually becomes smaller from the inner side of the inner cavity of the outer shell plate to the opening side of the inner cavity of the outer shell plate;

[0013] One end of the protection plate assembly inserted into the outer shell plate is bent to match the clamping groove, and the end part of the protection plate assembly is clamped in the clamping groove;

[0014] The end of the stainless steel wire group inserted into the protection plate assembly is wrapped with a thin steel sheet, and the end of the stainless steel wire group wrapped with the thin steel sheet is clamped in the bent end part of the protection plate assembly.

[0015] As a further optimization solution, in order to reinforce the outer shell plate, the protection plate assembly and the stainless steel wire group through pin connection, the connection reinforcement structure includes:

[0016] A pin, the body of which penetrates through the top of the outer shell plate and the protection plate assembly;

[0017] The stainless steel wire group is extruded to form a through hole corresponding to the penetration position of the pin body, and the pin body passes through the through hole on the stainless steel wire group;

[0018] The top cap of the pin is clamped on the top of the outer shell plate;

[0019] A threaded connection structure is assembled between the end of the pin body and the bottom surface of the inner cavity of the outer shell plate.

[0020] As a further optimization solution, in order to perform detachable threaded connection on the end of the pin body, the threaded connection structure includes:

[0021] An internal thread sleeve, which is embedded and welded on the bottom surface of the inner cavity of the outer shell plate;

[0022] An external thread is provided at the lower end of the outer wall of the pin body;

[0023] The external thread of the pin body is screwed into the internal thread sleeve.

[0024] As a further optimization solution, in order to reduce the risk of cracking of the through hole corresponding to the top cap of the pin and ensure the smoothness and flatness of the top surface of the outer shell plate, a conical groove is provided on the top of the outer shell plate corresponding to the top cap of the pin;

[0025] The top cap of the pin is conical, and the top cap of the pin is inserted into the conical groove;

[0026] The top cap of the pin and the top surface of the outer shell plate are in the same plane.

[0027] As a further optimization solution, in order to further improve the connection strength of the connection reinforcement structure, a steel flat ring is inserted into the inner cavity of the outer shell plate, and it is tightly clamped on the outer wall of one end of the stainless steel wire group located in the protection plate assembly;

[0028] The body of the pin penetrates through the reserved through hole on the steel flat ring.

[0029] As a further optimization solution, in order to improve the connection reinforcement strength, two rows of pins are distributed along the width direction of the top surface of the outer shell plate;

[0030] The positions of the two rows of pins are staggered.

[0031] As a further optimization solution, in order to limit and fix the position of the protection plate assembly located in the inner cavity of the outer shell plate, the limit fixing structure includes:

[0032] A limiting cavity is left between the end of the protection plate assembly and the end of the stainless steel wire group;

[0033] A plug rod is inserted into the limiting cavity;

[0034] There are two cover plates distributed in parallel; the two cover plates are respectively buckled on the same side of the edge of the outer shell plate;

[0035] Both ends of the plug rod are fixedly connected with screw rods, and the screw rods pass through the reserved through holes on the cover plate on the same side;

[0036] A fixing nut is screwed on the outer wall of the screw rod.

[0037] As a further optimization scheme, in order to provide an installation and fixing platform for the protection plate assembly and the stainless steel wire group, the outer shell plate includes:

[0038] A welding fixing plate, the end of which is bent into a U-shaped part;

[0039] The inner space of the U-shaped part is the inner cavity of the outer shell plate.

[0040] As a further optimization scheme, in order to support and protect the stainless steel wire group, the protection plate assembly includes:

[0041] A U-shaped elastic steel sheet, the bent end of which is inserted into the inside of the outer shell plate;

[0042] The lower end of the U-shaped elastic steel sheet is inclined upward by 30 degrees, and the upper end of the U-shaped elastic steel sheet is inclined upward by 60 degrees;

[0043] A transverse elastic steel sheet, one end of which is fixedly connected to the middle of the bent part in the inner cavity of the U-shaped elastic steel sheet, and the other end of the transverse elastic steel sheet extends obliquely upward to the middle of the upper and lower ends of the U-shaped elastic steel sheet;

[0044] The stainless steel wire group is inserted into the gap between the transverse elastic steel sheet and the upper and lower ends of the U-shaped elastic steel sheet.

[0045] The present utility model provides a reinforcement structure for a shield tail sealing brush wire group by improvement. Compared with the prior art, it has the following improvements and advantages:

[0046] The device uses a clamping structure to clamp the outer shell plate and the protection plate assembly inserted therein, and to clamp the protection plate assembly and the stainless steel wire group inserted therein, and uses a connection reinforcement structure to reinforce the clamping ends of the outer shell plate, the protection plate assembly and the stainless steel wire group; through the limit fixing structure, one end of the protection plate assembly inserted into the outer shell plate is limited and fixed in the outer shell plate, further reinforcing the installation of the brush piece and reducing the probability of the brush piece being damaged and falling off due to insufficient fixed connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 Structural schematic diagram of the present utility model;

[0049] Figure 2 Partial structural schematic diagram of the present utility model;

[0050] Figure 3 For the present utility model Figure 2 Enlarged structural schematic diagram at position A in;

[0051] Figure 4 Structural schematic sectional view at the connection and reinforcement structure of the present utility model;

[0052] Figure 5 For the present utility model Figure 1 Enlarged structural schematic diagram at position B in.

[0053] Explanation of reference numerals:

[0054] 1 - Outer shell plate, 11 - Welding fixing plate, 12 - U-shaped part, 2 - Protection plate assembly, 21 - U-shaped elastic steel sheet, 22 - Transverse elastic steel sheet, 3 - Stainless steel wire group, 4 - Connection and reinforcement structure, 41 - Steel flat ring, 42 - Pin, 43 - Internal thread sleeve, 44 - External thread, 5 - Clamping structure, 51 - Clamping groove, 52 - Thin steel sheet, 6 - Limit and fixing structure, 61 - Limit cavity, 62 - Insert rod, 63 - Cover plate, 64 - Screw rod, 65 - Fixed nut. Specific embodiments

[0055] The following will clearly and completely describe the technical solutions of the present utility model in combination with the embodiments. Obviously, the described embodiments are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0057] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] Please refer to Figure 1-5 , the present utility model provides a technical solution: a reinforcement structure for a shield tail seal brush wire group, comprising:

[0059] An outer shell plate 1, in which a protection plate assembly 2 is inserted;

[0060] A stainless steel wire group 3 is inserted into the protection plate assembly 2;

[0061] A clamping structure 5 is assembled at the position between the inner cavity of the outer shell plate 1 and the same-side end parts of the protection plate assembly 2 and the stainless steel wire group 3;

[0062] The end part of the stainless steel wire group 3 is clamped in the protection plate assembly 2, and the end part of the protection plate assembly 2 is clamped in the outer shell plate 1, realizing the mutual clamping connection of the three;

[0063] A connection reinforcement structure 4 is further assembled at the clamping ends of the outer shell plate 1, the protection plate assembly 2 and the stainless steel wire group 3, and the connection reinforcement structure 4 reinforces the connection of the mutually clamped outer shell plate 1, protection plate assembly 2 and stainless steel wire group 3;

[0064] The end of the protection plate assembly 2 located inside the outer shell plate 1 is assembled with a limit fixing structure 6 between the front and rear edges of the outer shell plate 1. The protection plate assembly 2 is limited and fixed inside the outer shell plate 1 through the limit fixing structure 6, further strengthening the installation of the brush piece and reducing the probability of the brush piece being damaged and falling off due to insufficient fixed connection strength.

[0065] In some embodiments, in order to snap the end of the stainless steel wire group 3 into the protection plate assembly 2 and snap the end of the protection plate assembly 2 into the outer shell plate 1, the snap structure 5 includes:

[0066] A snap groove 51, which is opened in the inner cavity of the outer shell plate 1;

[0067] The size of the snap groove 51 gradually becomes smaller from the inner side of the inner cavity of the outer shell plate 1 to the opening side of the inner cavity of the outer shell plate 1;

[0068] One end of the protection plate assembly 2 inserted into the outer shell plate 1 is bent to match the snap groove 51, and the end of the protection plate assembly 2 is snapped into the snap groove 51, and the snap is performed in this way with the inner width and outer narrow;

[0069] The end of the stainless steel wire group 3 inserted into the protection plate assembly 2 is wrapped with a thin steel sheet 52, and the end of the stainless steel wire group 3 wrapped with the thin steel sheet 52 is snapped into the bent end of the protection plate assembly 2; the shape of the inner cavity after the protection plate assembly 2 is bent is also inner wide and outer narrow, and the end of the stainless steel wire group 3 wrapped with the thin steel sheet 52 is snapped.

[0070] In some embodiments, in order to connect and reinforce the outer shell plate 1, the protection plate assembly 2 and the stainless steel wire group 3 through the pin 42, the connection and reinforcement structure 4 includes:

[0071] A pin 42, the body of which penetrates the top of the outer shell plate 1 and the protection plate assembly 2, and reserved through holes are opened at the positions corresponding to the body of the pin 42 on the top of the outer shell plate 1 and the protection plate assembly 2;

[0072] The stainless steel wire group 3 is extruded to form a through hole at the position where the body of the pin 42 penetrates, and the body of the pin 42 passes through the through hole on the stainless steel wire group 3 without damaging the stainless steel wire;

[0073] The top cap of the pin 42 is snapped onto the top of the outer shell plate 1;

[0074] A threaded connection structure is assembled at the position between the end of the body of the pin 42 and the bottom surface of the inner cavity of the outer shell plate 1.

[0075] In some embodiments, in order to perform a detachable threaded connection on the end of the body of the pin 42, the threaded connection structure includes:

[0076] An internal thread sleeve 43, which is embedded and welded on the bottom surface of the inner cavity of the outer shell plate 1;

[0077] External thread 44 is provided at the lower end of the outer wall of the body of the pin 42;

[0078] The external thread 44 on the body of the pin 42 is screwed into the internal thread sleeve 43. The pin 42 is convenient for disassembly. After the pin 42 is disassembled, the stainless steel wire group 3 can be withdrawn from the side of the protection plate assembly 2, facilitating the replacement of the stainless steel wire group 3.

[0079] In some embodiments, in order to reduce the risk of cracking of the through-hole corresponding to the top cap of the pin 42 and ensure the smoothness and flatness of the top surface of the outer shell plate 1, a tapered groove is provided at the top of the outer shell plate 1 corresponding to the top cap of the pin 42;

[0080] The top cap of the pin 42 is tapered, and the top cap of the pin 42 is inserted into the tapered groove. The tapered groove can better disperse stress and reduce the risk of cracking of the through-hole corresponding to the top cap of the pin 42;

[0081] The top cap of the pin 42 and the top surface of the outer shell plate 1 are in the same plane.

[0082] In some embodiments, in order to further improve the connection strength of the connection reinforcement structure 4, a steel flat ring 41 is inserted into the inner cavity of the outer shell plate 1, and it is tightly fastened to the outer wall of one end of the stainless steel wire group 3 located inside the protection plate assembly 2;

[0083] The body of the pin 42 passes through the reserved through-hole on the steel flat ring 41. The steel flat ring 41 provides a new platform for fixing the pin 42 and improves the connection strength of the connection reinforcement structure 4.

[0084] In some embodiments, in order to improve the connection reinforcement strength, two rows of pins 42 are distributed along the width direction of the top surface of the outer shell plate 1;

[0085] The positions of the two rows of pins 42 are staggered, increasing the stress-bearing area and enabling multiple pins 42 to disperse the force.

[0086] In some embodiments, in order to limit and fix the position of the protection plate assembly 2 located in the inner cavity of the outer shell plate 1, the limit fixing structure 6 includes:

[0087] A limit cavity 61 is left between the end of the protection plate assembly 2 and the end of the stainless steel wire group 3;

[0088] A plug rod 62 is inserted into the limit cavity 61;

[0089] There are two cover plates 63 distributed in parallel; the two cover plates 63 are respectively buckled on the same side of the edge of the outer shell plate 1;

[0090] Both ends of the plug rod 62 are fixedly connected with screw rods 64, and the screw rods 64 pass through the reserved through-holes on the cover plate 63 on the same side;

[0091] A fixing nut 65 is screwed onto the outer wall of the screw rod 64. Cover plates 63 are sleeved on the screw rods 64 at both ends of the insertion rod 62. The cover plates 63 are abutted and fixed on the same side of the edge of the outer shell plate 1 through the fixing nut 65, so as to limit and fix the position of the protection plate assembly 2 in the inner cavity of the outer shell plate 1.

[0092] In some embodiments, in order to provide an installation and fixing platform for the protection plate assembly 2 and the stainless steel wire group 3, the outer shell plate 1 includes:

[0093] A welding fixing plate 11, the end of which is bent into a U-shaped part 12;

[0094] The inner space of the U-shaped part 12 is the inner cavity of the outer shell plate 1.

[0095] In some embodiments, in order to support and protect the stainless steel wire group 3, the protection plate assembly 2 includes:

[0096] A U-shaped elastic steel sheet 21, the bent end of which is inserted into the inside of the outer shell plate 1;

[0097] The lower end of the U-shaped elastic steel sheet 21 is inclined upward by 30 degrees, and the upper end of the U-shaped elastic steel sheet 21 is inclined upward by 60 degrees;

[0098] A transverse elastic steel sheet 22, one end of which is fixedly connected to the middle of the bent part in the inner cavity of the U-shaped elastic steel sheet 21, and the other end of the transverse elastic steel sheet 22 extends obliquely upward to the middle of the upper and lower ends of the U-shaped elastic steel sheet 21;

[0099] The stainless steel wire group 3 is inserted into the gap between the transverse elastic steel sheet 22 and the upper and lower ends of the U-shaped elastic steel sheet 21.

[0100] Working principle:

[0101] The end of the stainless steel wire group 3 is clamped inside the protection plate assembly 2, and the end of the protection plate assembly 2 is clamped inside the outer shell plate 1, realizing the mutual clamping connection of the three;

[0102] The connection and reinforcement structure 4 connects and reinforces the mutually clamped outer shell plate 1, protection plate assembly 2 and stainless steel wire group 3; the protection plate assembly 2 is limited and fixed inside the outer shell plate 1 through the limit and fixing structure 6, further reinforcing the installation of the brush piece, and reducing the probability of the brush piece being damaged and falling off due to insufficient fixing connection strength.

[0103] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reinforcement structure for a tail seal brush filament group, characterized in that include: An outer shell plate (1) having a protective plate assembly (2) inserted therein; A stainless steel wire group (3) is inserted into the protection plate assembly (2); A clamping structure (5) is installed between the inner cavity of the outer shell plate (1) and the ends of the protection plate assembly (2) and the stainless steel wire assembly (3) on the same side; The clamping ends of the outer shell plate (1), the protection plate assembly (2) and the stainless steel wire group (3) are also equipped with a connection reinforcement structure (4); The protective plate assembly (2) is provided with a limited position fixing structure (6) at a position between the end portion of the protective plate assembly (2) located inside the outer shell plate (1) and the front and rear edges of the outer shell plate (1).

2. The reinforcement structure of a tail seal brush wire group according to claim 1, characterized in that The clamping structure (5) comprises: A snap-fit groove (51) is formed in the inner cavity of the housing plate (1); The size of the clamping groove (51) gradually decreases from the inner side of the inner cavity of the outer shell plate (1) to the opening side of the inner cavity of the outer shell plate (1); The protection plate assembly (2) is inserted into the outer shell plate (1) and one end is bent to match the clamping groove (51), and the end of the protection plate assembly (2) is clamped in the clamping groove (51); The end of the stainless steel wire group (3) inserted into the protection plate assembly (2) is wrapped with a thin steel sheet (52), and the end of the stainless steel wire group (3) wrapped with the thin steel sheet (52) is clamped into the bent end of the protection plate assembly (2).

3. The reinforcement structure of a tail seal brush wire group according to claim 1, characterized in that The connection reinforcement structure (4) comprises: A pin (42), the body of which penetrates the top of the housing plate (1) and the protection plate assembly (2); The stainless steel wire group (3) is extruded to form a through hole at a position corresponding to the nail body of the pin (42), and the nail body of the pin (42) passes through the through hole on the stainless steel wire group (3); The top cap of the pin (42) is clamped on the top of the outer shell plate (1); A threaded connection structure is assembled between the end of the pin body of the pin (42) and the bottom surface of the inner cavity of the outer shell plate (1).

4. The reinforcement structure of a tail seal brush wire group according to claim 3, characterized in that, The threaded connection structure comprises: An internal thread sleeve (43) is embedded and welded on the bottom surface of the inner cavity of the outer shell plate (1); An external thread (44) is formed on the lower end of the outer wall of the nail body of the pin (42); The external thread (44) of the pin (42) is screwed into the internal thread sleeve (43).

5. The reinforcement structure of a shield tail seal brush wire group according to claim 3, characterized in that A conical groove is formed on the top cap of the housing plate (1) corresponding to the pin (42); The top cap of the pin (42) is conical, and the top cap of the pin (42) is inserted into the conical groove; The top cap of the pin (42) and the top surface of the outer shell plate (1) are located in the same plane.

6. The reinforcing structure of a tail seal brush wire group according to claim 3, characterized in that The inner cavity of the outer shell plate (1) is plugged with a steel flat ring (41), which is tightly clamped on the stainless steel wire group (3) and located on the outer wall of one end of the protective plate assembly (2); The body of the pin (42) passes through the reserved through hole on the steel flat ring (41).

7. The reinforcement structure of a tail seal brush filament group according to claim 3, characterized in that, The pins (42) are distributed in two rows along the width direction of the top surface of the outer shell plate (1); The positions of the two rows of pins (42) are staggered.

8. The reinforcement structure of a tail seal brush wire group according to claim 1, characterized in that, The position limiting and fixing structure (6) comprises: A limiting cavity (61) is left between the end of the protection plate assembly (2) and the end of the stainless steel wire assembly (3); An insert rod (62) inserted into the limiting cavity (61); Two cover plates (63) are arranged in parallel; the two cover plates (63) are respectively buckled on the same side of the edge of the outer shell plate (1); Both ends of the insertion rod (62) are fixedly connected with screw rods (64), and the screw rods (64) pass through the reserved through holes on the same-side cover plate (63); A fixing nut (65) is screwed on the outer wall of the screw rod (64).

9. The reinforcement structure of a tail seal brush wire group according to claim 1, characterized in that, The outer shell plate (1) includes: A welded fixing plate (11) whose end is bent into a U-shaped part (12); The inner space of the U-shaped part (12) is the inner cavity of the outer shell plate (1).

10. The reinforcement structure of a tail seal brush wire group according to claim 1, characterized in that, The protection plate assembly (2) includes: A U-shaped elastic steel sheet (21) whose bent end is inserted into the inside of the outer shell plate (1); The lower end of the U-shaped elastic steel sheet (21) is inclined upward by 30 degrees, and the upper end of the U-shaped elastic steel sheet (21) is inclined upward by 60 degrees; A transverse elastic steel sheet (22) whose one end is fixedly connected to the middle of the bent part in the inner cavity of the U-shaped elastic steel sheet (21), and the other end of the transverse elastic steel sheet (22) extends obliquely upward to the middle of the upper and lower ends of the U-shaped elastic steel sheet (21); The stainless steel wire group (3) is inserted into the gap between the transverse elastic steel sheet (22) and the upper and lower ends of the U-shaped elastic steel sheet (21).

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