Press-in type stage ventilation connection horn mouth

Abstract

The utility model provides a press-in type stage ventilation connection position horn mouth which comprises a plurality of horn sleeves which are sequentially connected in a sliding and sleeved mode, sealing assemblies arranged among the horn sleeves, and limiting assemblies which are arranged on all the horn sleeves except the horn sleeve on the innermost side and used for fixing the positions of the horn sleeves. The small-diameter end of the horn sleeve located on the innermost side is connected with the press-in type ventilator through a flange. The horn mouth can flexibly adapt to ventilation pipelines with different diameters, the problem that the ventilation pipelines with different specifications need to correspond to connecting pieces with different specifications is solved, the flexibility and universality of the horn mouth are improved, the flowing state of air flow is optimized, the air flow can be more stably transited into the ventilation pipelines, and the service life of the air flow is prolonged. Airflow turbulence and vortex are reduced, pressure loss and airflow noise are reduced, the uniformity and stability of the wind speed are improved, the ventilation effect is improved, and the ventilation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation equipment, and in particular relates to a bell mouth of a press-in stage ventilation connection. Background Art

[0002] Forced ventilation is a mechanical ventilation method for underground caverns or tunnels. It uses ventilation machinery installed outside the cave to deliver fresh air to the working surface through ventilation ducts, dilute and remove harmful gases, reduce dust concentration, and at the same time, dirty air flows out through the tunnel, thereby improving working conditions and ensuring the health of workers. Different underground caverns or tunnels have different sizes and lengths, so ventilation ducts of different diameters are required to adapt to actual conditions. When the size of the fan outlet does not match the diameter of the air duct, the existing technology usually sets a connector at the fan outlet to connect air outlets and ventilation ducts of different sizes to achieve a smooth transition at the air outlet, ensuring smooth transmission of air volume and the overall efficiency of the system. However, ventilation ducts of different specifications require corresponding connectors of different specifications, which increases the production cost of the connectors. If the construction workers use the wrong connectors, it will affect the normal construction of the ventilation system, reduce the flexibility of the ventilation system, and affect construction efficiency. Summary of the invention

[0003] The utility model aims to provide a bell mouth of a press-in stage ventilation connection to solve the problems existing in the above-mentioned prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The bell mouth of the push-in stage ventilation connection includes a plurality of bell sleeves which are slidably sleeved in sequence, a sealing assembly arranged between the bell sleeves, and a limiting assembly arranged on all the bell sleeves except the innermost bell sleeve for fixing the position of the bell sleeves. The small diameter end of the innermost bell sleeve is connected to the push-in ventilator through a flange.

[0006] Preferably, the adjacent horn sleeves are slidably connected by a sliding member, and the sliding member includes: a plurality of mounting plates arranged around the outer wall of the inner horn sleeve, a sliding groove arranged on the mounting plates, and a sliding block fixedly mounted on the inner wall of the outer horn sleeve and movably connected to the sliding groove, and the sliding groove is arranged horizontally.

[0007] Preferably, the sealing assembly includes: a flexible sealing sleeve fixedly mounted on the outer wall of the inner horn sleeve, and a flexible sealing ring arranged on the small diameter end of the outer horn sleeve, the flexible sealing sleeve and the flexible sealing ring are in contact with each other, and the flexible sealing sleeve is a cylindrical structure with a horn-shaped cavity inside.

[0008] Preferably, the flexible sealing sleeve is provided with a through hole through which the mounting plate passes.

[0009] Preferably, the limiting assembly comprises: a threaded rod threadedly penetrating the horn sleeve, a rubber block arranged at the lower end of the threaded rod, and a turntable arranged at the top end of the threaded rod, and the bottom surface of the rubber block contacts the bottom surface of the slide groove.

[0010] Preferably, a rubber sleeve is fixedly sleeved on the upper end of the threaded rod, and the bottom end of the rubber sleeve is in contact with the outer side wall of the horn sleeve.

[0011] Preferably, an annular reinforcement edge is provided on the large diameter end of the horn sleeve.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] 1. The utility model adopts a plurality of trumpet sleeves to form a trumpet mouth, so that the trumpet mouth can flexibly adapt to ventilation ducts of different diameters, solves the problem that ventilation ducts of different specifications need to correspond to connectors of different specifications, improves the flexibility and versatility of the trumpet mouth, and the trumpet sleeves are slidably connected in sequence, so that ventilation ducts of different diameters can correspond to trumpets of different lengths, further optimizes the flow state of the airflow, enables the airflow to transition to the ventilation duct more smoothly, reduces airflow turbulence and eddy currents, reduces pressure loss and airflow noise, improves the uniformity and stability of wind speed, and thus improves ventilation effect and ventilation efficiency;

[0014] 2. The utility model ensures the close connection between adjacent horn sleeves by setting the sealing assembly between the horn sleeves, avoids the occurrence of air leakage, ensures the sealing effect of the connection point, and improves the sealing performance of the ventilation system; the limit assembly can fix the position of the horn sleeve to prevent it from displacement or loosening during use, thereby ensuring the stability and safety of the device;

[0015] 3. The innermost horn sleeve of the utility model is connected to the push-in ventilator through a flange. This connection method is firm and reliable, can withstand greater wind pressure and vibration, and further improves the stability of the ventilation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1It is a cross-sectional structural diagram of the bell mouth at the press-in stage ventilation connection;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the bell mouth of the press-in stage ventilation connection after being extended;

[0019] Figure 3 It is a structural diagram of the innermost horn sleeve of the horn mouth at the press-in stage ventilation connection;

[0020] Figure 4 It is a structural schematic diagram of the bell-mouth flexible sealing sleeve at the press-in stage ventilation connection;

[0021] Figure numerals: 1-speaker sleeve, 2-flange, 3-mounting plate, 4-slide groove, 5-slider, 6-flexible sealing sleeve, 7-flexible sealing ring, 8-through hole, 9-threaded rod, 10-rubber block, 11-turntable, 12-rubber sleeve, 13-annular reinforcement edge. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0025] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0029] like Figure 1-Figure 4 As shown, the bell mouth of the push-in stage ventilation connection includes a plurality of horn sleeves 1 which are slidably sleeved in sequence, a sealing assembly arranged between the horn sleeves 1, and a limiting assembly arranged on all horn sleeves 1 except the innermost horn sleeve 1 for fixing the position of the horn sleeve 1. The small diameter end of the innermost horn sleeve 1 is connected to the push-in ventilator through a flange 2.

[0030] The large diameter end of the horn sleeve 1 is provided with an annular reinforcement edge 13.

[0031] During the construction process, the bell mouth is first fixed at the air outlet of the push-in ventilator through the flange 2, and the ventilation duct is fixed at the outlet of the appropriate bell sleeve 1, and then the bell sleeve 1 is slid to adjust the length of the bell mouth, so that the ventilation duct can correspond to the bell mouth of appropriate length, and then the position of the bell sleeve 1 can be fixed by the limit assembly to prevent it from being displaced or loosened during use; the bell mouth can flexibly adapt to ventilation ducts of different diameters, which solves the problem that ventilation ducts of different specifications need to correspond to connectors of different specifications, improves the flexibility and versatility of the bell mouth, and thus reduces the production cost; ventilation ducts of different diameters can correspond to bell mouths of different lengths, thereby optimizing the flow state of the airflow, allowing the airflow to transition to the ventilation duct more smoothly, reducing airflow turbulence and eddy currents, reducing pressure loss and airflow noise, and improving the uniformity and stability of wind speed, thereby improving the ventilation effect and ventilation efficiency.

[0032] like Figure 1 and Figure 2As shown, the adjacent horn sleeves 1 are slidably connected by a sliding member, and the sliding member includes: a plurality of mounting plates 3 arranged around the outer wall of the inner horn sleeve 1, a slide groove 4 arranged on the mounting plate 3, and a slider 5 fixedly mounted on the inner wall of the outer horn sleeve 1 and movably connected to the slide groove 4, and the slide groove 4 is horizontally arranged.

[0033] like Figure 3 and Figure 4 As shown, the sealing assembly includes: a flexible sealing sleeve 6 fixedly mounted on the outer wall of the inner horn sleeve 1, and a flexible sealing ring 7 arranged on the small diameter end of the outer horn sleeve 1, the flexible sealing sleeve 6 and the flexible sealing ring 7 are in contact with each other, and the flexible sealing sleeve 6 is a cylindrical structure with a horn-shaped cavity inside; the flexible sealing sleeve 6 is provided with a through hole 8 through which the mounting plate 3 passes.

[0034] Among them, the setting of the flexible sealing sleeve 6 and the flexible sealing ring 7 ensures close contact and effective sealing between adjacent horn sleeves 1, thereby preventing air leakage and ensuring the efficiency and performance of the ventilation system; the internal horn-shaped cavity structure of the flexible sealing sleeve 6 matches the shape of the horn sleeve 1, further enhancing the sealing effect and increasing the stability and safety of the entire system.

[0035] like Figure 1 and Figure 2 As shown, the limiting assembly includes: a threaded rod 9 threadedly penetrating the horn sleeve 1, a rubber block 10 arranged at the lower end of the threaded rod 9, and a turntable 11 arranged at the top end of the threaded rod 9, and the rubber block 10 is in contact with the bottom surface of the slide groove 4.

[0036] A rubber sleeve 12 is fixedly sleeved on the upper end of the threaded rod 9 , and the bottom end of the rubber sleeve 12 contacts the outer side wall of the horn sleeve 1 .

[0037] Among them, when the horn sleeve 1 is adjusted to a suitable position, rotating the turntable 11 can drive the threaded rod 9 to move downward, so that the rubber block 10 contacts the bottom surface of the slide groove 4, thereby locking the position of the horn sleeve 1 to prevent it from being displaced or loosened during use, thereby ensuring the stability and safety of the device. The design of the rubber sleeve 12 allows the threaded rod 9 to be tightly pressed against the slide groove 4, thereby enhancing the sealing and stability of the entire assembly.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described by referring to the preferred embodiments of the utility model, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The bell mouth of the press-in stage ventilation connection is characterized by: The invention comprises a plurality of horn sleeves (1) which are slidably sleeved in sequence, a sealing component arranged between the horn sleeves (1), and a limiting component arranged on all horn sleeves (1) except the innermost horn sleeve (1) and used for fixing the position of the horn sleeve (1), wherein the small diameter end of the innermost horn sleeve (1) is connected to a forced-in ventilator via a flange (2).

2. The bell mouth of the press-in stage ventilation connection according to claim 1 is characterized in that: The adjacent horn sleeves (1) are slidably connected via a sliding member, wherein the sliding member comprises: a plurality of mounting plates (3) arranged around the outer wall of the inner horn sleeve (1), a sliding groove (4) arranged on the mounting plates (3), and a sliding block (5) fixedly mounted on the inner wall of the outer horn sleeve (1) and movably connected to the sliding groove (4), wherein the sliding groove (4) is arranged horizontally.

3. The bell mouth of the press-in stage ventilation connection according to claim 2 is characterized in that: The sealing assembly comprises: a flexible sealing sleeve (6) fixedly mounted on the outer wall of the inner horn sleeve (1), and a flexible sealing ring (7) arranged on the small diameter end of the outer horn sleeve (1), wherein the flexible sealing sleeve (6) and the flexible sealing ring (7) are in contact with each other, and the flexible sealing sleeve (6) is a cylindrical structure with a horn-shaped cavity inside.

4. The bell mouth of the press-in stage ventilation connection according to claim 3 is characterized in that: The flexible sealing sleeve (6) is provided with a through hole (8) through which the mounting plate (3) passes.

5. The bell mouth of the press-in stage ventilation connection according to claim 3 is characterized in that: The limit assembly comprises: a threaded rod (9) threadedly penetrating the horn sleeve (1), a rubber block (10) arranged at the lower end of the threaded rod (9), and a turntable (11) arranged at the top end of the threaded rod (9), the bottom surface of the rubber block (10) being in contact with the bottom surface of the slide groove (4).

6. The bell mouth of the press-in stage ventilation connection according to claim 5, characterized in that: A rubber sleeve (12) is fixedly sleeved on the upper end of the threaded rod (9), and the bottom end of the rubber sleeve (12) is in contact with the outer side wall of the horn sleeve (1).

7. The bell mouth of the press-in stage ventilation connection according to claim 1, characterized in that: An annular reinforcement edge (13) is provided on the large diameter end of the horn sleeve (1).

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