Mine ventilation pipeline mounting and connecting structure

Abstract

The utility model discloses a mine ventilation pipeline mounting and connecting structure which aims at improving the sealing performance and the stability of pipeline connection. The structure comprises a sealing rubber strip and a hoop, an assembling wing plate is fixed to the outer edge of a ventilation pipeline port, the cross section of the sealing rubber strip is T-shaped, the transverse section is attached to the inner wall of the pipeline in a sealed mode, and the longitudinal section is attached to the inner side wall of the assembling wing plate in a sealed mode. The hoop is arranged on the periphery of the pipeline in a sleeving mode and abuts against the outer wall of the assembling wing plate, and the hoop, the sealing rubber strip and the assembling wing plate are fixedly combined through bolts. In addition, the structure further comprises a telescopic arm, an elastic arm and a connecting piece, the bottom end of the telescopic arm is hinged to the top end of the hoop, and the top end of the elastic arm is hinged to a mine roadway top preset piece. According to the connecting structure, the sealing effect of the pipeline is effectively improved, the anti-seismic performance is enhanced, and accurate butt joint and long-term stable operation in a complex mine environment are ensured through the adjusting function of the telescopic arm and the elastic arm.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine ventilation pipeline installation technical field, specifically is a mine ventilation pipeline installation connection structure. BACKGROUND

[0002] In the existing mine ventilation system, the installation and connection of the ventilation pipeline usually adopt the traditional fixed mode, and the two ends of the pipeline are connected through flanges, bolts or simple joints. Although this connection mode can realize the installation of the pipeline in a short term, in the long-term use process, the following problems exist:

[0003] The traditional connection mode is difficult to guarantee the sealing property of the pipeline connection part, especially under the influence of factors such as long-term vibration and temperature change, the sealing rubber strip or gasket is easy to age or fail, leading to the air leakage phenomenon at the ventilation pipeline interface, affecting the ventilation effect, and even possibly causing safety hazards such as coal dust and gas leakage.

[0004] The traditional pipeline connection mode depends on the standardized flanges and bolt fixation, cannot be flexibly adjusted according to the actual construction environment on site, especially when the pipeline is butt-jointed and installed, it is difficult to guarantee the precision of the alignment of the pipeline ports. This often leads to unstable pipeline installation, causes poor sealing of the joint part, and affects the overall ventilation effect.

[0005] The equipment and machinery in the mine often produce great vibration, and these vibrations can be transmitted through the pipeline, possibly leading to the loosening or sealing failure of the pipeline connection part. The traditional connection mode has no effective shock absorption design, is easy to cause the instability of the pipeline in the long-term operation, and affects the sealing performance and ventilation effect of the system.

[0006] Therefore, the prior art urgently needs a new mine ventilation pipeline connection structure to solve the above problems. UTILITY MODEL CONTENT

[0007] In view of the above deficiencies in the prior art, the utility model aims to provide a mine ventilation pipeline installation connection structure, which effectively improves the sealing property and stability of the mine ventilation pipeline, provides greater adjustment space in the installation process, can adapt to complex mine environment, and ensures the long-term reliable operation of the ventilation system.

[0008] The utility model discloses a technical scheme that is adopted to realize the above-mentioned purpose is: a mine ventilation pipeline installation connecting structure is assembled at the connecting position of two groups of ventilation pipelines, and it comprises sealing rubber strip, clamp, the port outer edge of ventilation pipeline is fixed with the assembly wing plate, the cross section of sealing rubber strip is provided with T type mechanism, the horizontal section of sealing rubber strip keeps sealed and is attached with the inner wall of two groups of ventilation pipelines, the longitudinal section of sealing rubber strip keeps sealed and is attached with the inner wall of two groups of assembly wing plate, the clamp is covered in the ventilation pipeline periphery and keeps the abutment with the outer wall of assembly wing plate, and the clamp, the longitudinal section of sealing rubber strip, assembly wing plate are fixed combination through bolt assembly.

[0009] Still include the connecting assembly including telescopic arm, elastic arm each two groups and with each telescopic arm, elastic arm keep articulated connecting piece, two groups of telescopic arm's bottom respectively articulate to the clamp top end two sides, two groups of elastic arm's top respectively articulate to the preburied preset piece on the different position of mine roadway top.

[0010] In the above technical scheme, in order to guarantee that the horizontal section of sealing rubber strip can be fully attached with the inner wall of ventilation pipeline, to improve the sealing effect of ventilation pipeline connection, the following technical scheme is provided.

[0011] Still include the multiple groups of pressure strips that are evenly arranged along the length direction of ventilation pipeline, the pressure strip is nested and is pressed to the inner side of the horizontal section of sealing rubber strip, and the horizontal section of sealing rubber strip is sealed and attached with the inner wall of ventilation pipeline after deformation under the action of pressure strip.

[0012] In the above technical scheme, in order to guarantee that telescopic arm can realize the manual adjustment of structural length, and can guarantee that the two ends of telescopic arm can be articulated with clamp and connecting piece, the following technical scheme is provided.

[0013] The telescopic arm includes the screw sleeve and the upper screw rod and the lower screw rod that are rotatively connected to the upper and lower ends of the screw sleeve, the screw threads of the upper screw rod and the lower screw rod are oppositely arranged, and the outer wall of the screw sleeve is provided with a hexagonal clamping groove.

[0014] The connecting piece is fixedly connected with an upper hinge seat and a lower hinge seat, the axis of the upper hinge seat and the lower hinge seat is vertically distributed, the top end of the upper screw rod is fixedly connected with an upper joint A articulated with the lower hinge seat.

[0015] The clamp is fixedly connected with an ear seat, and the bottom end of the lower screw rod is fixedly connected with a lower joint A articulated with the ear seat.

[0016] In the above technical scheme, in order to guarantee that elastic arm can be passively adjusted along the length direction, and can exert directional elastic force to limit the transmission of vibration to telescopic arm and ventilation pipeline, the following technical scheme is provided.

[0017] The elastic arm comprises a telescopic rod, a supporting spring, a limiting ring, and a connecting seat, a telescopic sleeve and a connecting rod which are sequentially fixed coaxially, a plurality of groups of annular arrays of guide seats are fixed to the top end of the connecting rod, guide grooves are formed in the connecting seat and the telescopic sleeve, the guide seats are slidably installed in the guide grooves and extend to the outside of the telescopic sleeve, the limiting ring is rotatably connected to the periphery of the guide seat, and the supporting spring is sleeved on the periphery of the telescopic sleeve and abuts against the connecting seat and the limiting ring at both ends.

[0018] In the above technical solution, in order to ensure that the elastic arm can be connected with the preset part in the mine tunnel and the upper hinge seat on the connecting part, the following technical solution is provided.

[0019] The bottom end of the telescopic rod is fixedly connected with a lower joint B which is hingedly connected with the upper hinge seat, and the top end of the connecting rod is fixedly connected with an upper joint B which is hingedly connected with the preset part.

[0020] The utility model discloses the beneficial effects of:

[0021] 1. The sealing effect is improved significantly, the sealing rubber strip of T-shaped section is adopted, and the pressing effect of the clamp, the pressing strip and the assembly wing plate is combined, so that good sealing of the pipeline connection part can be realized. The transverse section of the sealing rubber strip is tightly attached to the inner wall of the pipeline, and the longitudinal section is tightly attached to the assembly wing plate, so that gas leakage or impurities entering can be effectively prevented, and the stability and safety of the ventilation system can be ensured.

[0022] 2. The installation and adjustment are flexible, the telescopic arm and the elastic arm are arranged, the actual construction condition can be adjusted during the pipeline installation process, and the alignment accuracy of the connected pipelines can be ensured. The length of the telescopic arm can be manually adjusted, the pipelines can be stably erected along the same straight line, and the stability and sealing performance of the pipeline connection can be improved.

[0023] 3. Superior anti-seismic performance: the elastic arm is arranged, vibration generated during the operation of equipment and machines in the mine can be effectively absorbed, vibration can be prevented from being transmitted to the pipeline system, the pipeline connection part can be prevented from loosening or sealing failure, and the ventilation pipeline can be stably operated for a long time in a vibration environment.

[0024] 4. The structural stability is enhanced: the clamp is tightly combined with the assembly wing plate, the stability of the pipeline connection part can be ensured, and the influence of external disturbance on the connection quality of the pipeline can be effectively prevented. Through the arrangement of the plurality of pressing strips, the transverse section of the sealing rubber strip can be deformed and better attached to the inner wall of the pipeline, the sealing effect is further improved, and the service life of the pipeline system is prolonged.

[0025] In summary, through the innovative structural design, the sealing performance and stability of the mine ventilation pipeline are effectively improved, greater adjustment space is provided during the installation process, the complex mine environment can be adapted, and the long-term reliable operation of the ventilation system can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a sectional structure schematic diagram when two groups of ventilation ducts are connected in the utility model;

[0028] Figure 3 It is Figure 2 It is an enlarged detail schematic diagram of A part in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the telescopic arm in the connecting assembly;

[0030] Figure 5 It is a structural schematic diagram of the elastic arm in the connecting assembly;

[0031] Figure 6 It is a structural schematic diagram of the elastic arm in the sectional state.

[0032] In the drawing: 1 ventilation duct, 11 assembly wing plate, 2 sealing rubber strip, 21 horizontal section, 22 longitudinal section, 3 clamp, 31 ear seat, 4 connecting assembly, 41 telescopic arm, 411 threaded sleeve, 412 upper screw rod, 413 lower screw rod, 414 hexagonal clamping groove, 415 upper joint A, 416 lower joint A, 42 elastic arm, 4201 telescopic rod, 4202 supporting spring, 4203 limiting ring, 4204 connecting seat, 4205 telescopic sleeve, 4206 connecting rod, 4207 guide seat, 4208 guide groove, 4209 lower joint B, 4210 upper joint B, 43 connecting piece, 431 upper hinge seat, 432 lower hinge seat, 5 pressing strip. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] Please refer to Figures 1-6The utility model provides a kind of mine ventilation duct installation connecting structure, assembly in the connecting position of two groups of ventilation duct 1, including sealing rubber strip 2, clamp 3, the port outer edge of ventilation duct 1 is fixedly connected with assembly wing plate 11, the section of sealing rubber strip 2 is provided as T type mechanism, the horizontal section 21 of sealing rubber strip 2 is kept sealed with the inner wall of adjacent two groups of ventilation duct 1, the vertical section 22 of sealing rubber strip 2 is kept sealed with the inner wall of the two groups of assembly wing plate 11, clamp 3 is set on the periphery of ventilation duct 1 and keeps abutment with the outer wall of assembly wing plate 11, clamp 3, the vertical section 22 of sealing rubber strip 2, assembly wing plate 11 are fixedly combined by bolt assembly.

[0035] Still include connecting assembly 4 includes two groups of each two groups of telescopic arm 41, elastic arm 42 and the connecting piece 43 kept hinged with each telescopic arm 41, elastic arm 42, the bottom end of two groups of telescopic arm 41 is respectively hinged to the top end two sides of clamp 3, the top end of two groups of elastic arm 42 is respectively hinged to the preset piece pre-buried in different positions of mine roadway top.

[0036] When connecting adjacent two groups of ventilation duct 1 and hanging ventilation duct 1 in mine roadway carries out ventilation, sealing rubber strip 2 can effectively seal the interface position of two groups of adjacent ventilation duct 1, specifically, by the horizontal section 21 of sealing rubber strip 2 and the inner wall sealing of two groups of ventilation duct 1 port, while vertical section 22 is combined to between the assembly wing plate 11 of two groups of ventilation duct 1 port, can realize the effective sealing of two groups of ventilation duct 1.

[0037] By being arranged in the clamp 3 of ventilation duct 1 interface both sides, the compression of assembly wing plate 11, sealing rubber strip 2 can be fixed, and the clamping force of clamp 3 can ensure that sealing rubber strip 2 and assembly wing plate 11 are in full contact, guarantee sealing effect.

[0038] The section of clamp 3 is provided as L type, and the two sections of structure are respectively combined with the outer wall of ventilation duct 1 and assembly wing plate 11, which can ensure the stability of clamp 3 installed on the periphery of ventilation duct 1.

[0039] Two groups of elastic arm 42 are used to connect mine roadway top and connecting piece 43, which can be adjusted along the length direction and provide elastic reaction force, when the vibration generated when machine and equipment run in mine is transmitted to telescopic arm 41 along geological structure, telescopic arm 41 can be stretched and contracted displacement by vibration, and reset under the action of elastic force, which can avoid that vibration is further transmitted to ventilation duct 1 along telescopic arm 41, and can ensure the structural stability and sealing effect of ventilation duct 1 connection and installation.

[0040] The length of the telescopic arm 41 can be manually adjusted. During the installation of the ventilation duct 1, the length of each telescopic arm 41 is adjusted to ensure that the connected ventilation ducts 1 are stably erected along the same straight line, thereby improving the stability and sealing performance of the ventilation duct 1 during installation and connection.

[0041] To ensure that the transverse section 21 of the sealing strip 2 can be fully attached to the inner wall of the ventilation duct 1 and improve the sealing effect of the ventilation duct 1, the following technical solutions are provided.

[0042] A plurality of pressing strips 5 are uniformly arranged along the length direction of the ventilation duct 1. The pressing strip 5 is nested and pressed to the inner side of the transverse section 21 of the sealing strip 2. After the transverse section 21 of the sealing strip 2 is deformed by the pressing strip 5, the transverse section 21 of the sealing strip 2 is sealed and attached to the inner wall of the ventilation duct 1.

[0043] The arrangement of the pressing strip 5 can cause the transverse section 21 of the sealing strip 2 to deform at the attachment position, so that the transverse section 21 of the sealing strip 2 applies uniform force to the inner wall of the ventilation duct 1, and the sealing strip 2 is tightly attached to the inner wall of the ventilation duct 1, thereby ensuring the sealing effect of the connection position of the two ventilation ducts 1.

[0044] To ensure that the telescopic arm 41 can be manually adjusted in length and that the two ends of the telescopic arm 41 can be hingedly connected to the clamp 3 and the connecting piece 43, the following technical solutions are provided.

[0045] The telescopic arm 41 includes a threaded sleeve 411, an upper screw rod 412, and a lower screw rod 413 hingedly connected to the upper and lower ends of the threaded sleeve 411. The screw threads of the upper screw rod 412 and the lower screw rod 413 are arranged in opposite directions, and the outer wall of the threaded sleeve 411 is provided with a hexagonal clamping groove 414.

[0046] The connecting piece 43 is fixedly connected with an upper hinge seat 431 and a lower hinge seat 432, and the axes of the upper hinge seat 431 and the lower hinge seat 432 are vertically distributed. The top end of the upper screw rod 412 is fixedly connected with an upper joint A415 hingedly connected with the lower hinge seat 432.

[0047] The clamp 3 is fixedly connected with an ear seat 31, and the bottom end of the lower screw rod 413 is fixedly connected with a lower joint A416 hingedly connected with the ear seat 31.

[0048] The hexagonal clamping groove 414 on the threaded sleeve 411 can be easily rotated by a wrench. Since the screw threads of the upper screw rod 412 and the lower screw rod 413 are arranged in opposite directions, when the threaded sleeve 411 is rotated around a specific direction, the upper screw rod 412 and the lower screw rod 413 can be simultaneously extended or retracted from the threaded sleeve 411, thereby effectively adjusting the length of the telescopic arm 41.

[0049] The upper joints A415 on the top of the upper screw rods 412 of the two groups are reversely arranged and can be respectively hinged to the two sides of the lower hinge base 432 to ensure that the two groups of telescopic arms 41 can be stably arranged in the same vertical plane.

[0050] The ear seat 31 can be connected to the two sides of the clamp 3 by welding or bolting and can be hinged to the lower joint A416 on the bottom of the lower screw rod 413.

[0051] To ensure that the elastic arm 42 can be passively adjusted in the length direction and can exert a directional elastic force to limit the transmission of vibration to the telescopic arm 41 and the ventilation duct 1, the following technical solutions are provided.

[0052] The elastic arm 42 comprises a telescopic rod 4201, a supporting spring 4202, a limiting ring 4203, and a connecting seat 4204, a telescopic sleeve 4205, and a connecting rod 4206 connected in sequence and coaxially. The top of the connecting rod 4206 is fixedly connected with a plurality of ring-shaped arrayed guide seats 4207. The connecting seat 4204 and the telescopic sleeve 4205 are provided with guide grooves 4208. The guide seats 4207 are slidingly installed in the guide grooves 4208 and extend to the outside of the telescopic sleeve 4205. The limiting ring 4203 is screwed to the periphery of the guide seat 4207. The supporting spring 4202 is sleeved on the periphery of the telescopic sleeve 4205 and abuts against the connecting seat 4204 and the limiting ring 4203 at both ends.

[0053] The guide grooves 4208 on the telescopic sleeve 4205 extend to the outside, while the guide grooves 4208 in the connecting seat 4204 do not extend to the outside. By additionally providing the connecting seat 4204, the structural strength of the telescopic sleeve 4205 can be improved, and the end of the supporting spring 4202 can be abutted and combined.

[0054] The guide seats 4207 are uniformly distributed in three groups, and the outer wall of the guide seat 4207 is provided with a threaded groove matched with the limiting ring 4203, so that the limiting ring 4203 can be stably screwed on the guide seat 4207. During assembly, the supporting spring 4202 can be sleeved on the telescopic sleeve 4205, and then the limiting ring 4203 is assembled to abut and combine the limiting ring 4203 and the supporting spring 4202, which can ensure the stable installation of the supporting spring 4202. Meanwhile, the setting of the limiting ring 4203 can prevent the telescopic rod 4201 from falling off when being assembled into the telescopic sleeve 4205.

[0055] The combination of the telescopic sleeve 4205 and the telescopic rod 4201 can realize the telescopic movement of the elastic arm 42, and the setting of the supporting spring 4202 can provide a reverse elastic force when the telescopic rod 4201 and the telescopic sleeve 4205 move axially relative to each other.

[0056] In order to ensure that the elastic arm 42 can be connected with the preset part in the mine tunnel and the upper hinge seat 431 on the connecting part 43, the following technical scheme is provided.

[0057] The bottom end of the telescopic rod 4201 is fixedly connected with the lower joint B4209 which is hingedly connected with the upper hinge seat 431, and the top end of the connecting rod 4206 is fixedly connected with the upper joint B4210 which is hingedly connected with the preset part.

[0058] The lower joints B4209 at the bottom ends of the two groups of telescopic rods 4201 are reversely arranged and can be hingedly connected to the two sides of the upper hinge seat 431, thereby ensuring that the two groups of elastic arms 42 can be stably arranged in the same vertical plane. The upper joint B4210 provided at the top end of the connecting rod 4206 can be hingedly connected with the preset part at the top of the mine tunnel, thereby ensuring stable installation of the two groups of elastic arms 42.

[0059] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0060] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A mine ventilation duct installation connection structure, characterised in that: The assembly is arranged at the connecting position of two groups of ventilation ducts (1), including sealing rubber strip (2), clamp (3), the outer edge of the port of the ventilation duct (1) is fixedly connected with the assembly wing plate (11), the cross section of the sealing rubber strip (2) is provided with T type mechanism, the transverse section (21) of the sealing rubber strip (2) is sealed and fitted with the inner wall of the adjacent two groups of ventilation ducts (1), the longitudinal section (22) of the sealing rubber strip (2) is sealed and fitted with the inner wall of the adjacent two groups of assembly wing plates (11), the clamp (3) is sleeved on the periphery of the ventilation duct (1) and abuts with the outer wall of the assembly wing plate (11), the clamp (3), the longitudinal section (22) of the sealing rubber strip (2) and the assembly wing plate (11) are fixedly combined by bolt assembly; It also includes connecting assembly (4) including two groups of telescopic arms (41) and elastic arms (42) and connecting piece (43) hingedly connected with each telescopic arm (41) and elastic arm (42), the bottom ends of the two groups of telescopic arms (41) are respectively hingedly connected to the top ends of the two sides of the clamp (3), the top ends of the two groups of elastic arms (42) are respectively hingedly connected to the preset pieces embedded in different positions of the roof of the mine roadway.

2. A mine ventilation conduit installation connection structure according to claim 1, characterised in that: It also includes a plurality of groups of pressing strips (5) arranged uniformly along the length direction of the ventilation duct (1), the pressing strip (5) is nested and pressed to the inner side of the transverse section (21) of the sealing rubber strip (2), the transverse section (21) of the sealing rubber strip (2) is deformed after being acted on by the pressing strip (5) and is sealed and fitted with the inner wall of the ventilation duct (1).

3. The mine ventilation conduit installation connection structure according to claim 1, characterized in that: The telescopic arm (41) includes threaded sleeve (411) and upper screw rod (412) and lower screw rod (413) rotatably connected to the upper and lower ends of the threaded sleeve (411), the screw threads of the upper screw rod (412) and the lower screw rod (413) are oppositely arranged, and the outer wall of the threaded sleeve (411) is provided with a hexagonal clamping groove (414); The connecting piece (43) is fixedly connected with upper hinge seat (431) and lower hinge seat (432), the axis of the upper hinge seat (431) and the lower hinge seat (432) is vertically distributed, and the top end of the upper screw rod (412) is fixedly connected with upper joint A (415) hingedly connected with the lower hinge seat (432); The clamp (3) is fixedly connected with ear seat (31), and the bottom end of the lower screw rod (413) is fixedly connected with lower joint A (416) hingedly connected with the ear seat (31).

4. A mine ventilation conduit installation connection structure according to claim 3, characterised in that: The elastic arm (42) comprises a telescopic rod (4201), a supporting spring (4202), a limiting ring (4203), and a connecting seat (4204), a telescopic sleeve (4205), and a connecting rod (4206) which are coaxially and sequentially fixed, the top end of the connecting rod (4206) is fixedly connected with a plurality of groups of annular arrays of guide seats (4207) respectively, guide grooves (4208) are formed in the connecting seat (4204) and the telescopic sleeve (4205), the guide seats (4207) are slidingly installed in the guide grooves (4208) and extend to the outside of the telescopic sleeve (4205), the limiting ring (4203) is screwed to the periphery of the guide seat (4207), and the supporting spring (4202) is sleeved on the periphery of the telescopic sleeve (4205) and abuts against the connecting seat (4204) and the limiting ring (4203) at both ends respectively.

5. A mine ventilation conduit installation connection structure according to claim 4, characterised in that: The bottom end of the telescopic rod (4201) is fixedly connected with a lower joint B (4209) which is hingedly connected with the upper hinge seat (431), and the top end of the connecting rod (4206) is fixedly connected with an upper joint B (4210) which is hingedly connected with the preset piece.

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