Lever type feeding mechanism for air inclined feeding groove

Abstract

The utility model discloses a lever type feeding mechanism for an air inclined conveying groove, the top of the inclined groove is communicated with a plurality of lever type feeding mechanisms, each lever type feeding mechanism comprises a blanking pipe, a turning plate, a lever and a hanging type balancing weight, the discharging end of the blanking pipe is communicated with the top of the inclined groove, the turning plate is rotatably arranged in the blanking pipe through a rotating shaft, and the lever is arranged on the turning plate. The rotating shaft is close to the inner side wall of the discharging pipe, the lever is connected with the outer end of the rotating shaft, the hanging type balancing weight is movably connected with a hanging hole in the lever, and the lever type feeding mechanism is further provided with a limiting piece matched with the turning plate. The lever type feeding mechanism also plays a role in locking air and not locking materials, on the basis, a plurality of hanging holes are formed in the lever, the position of the hanging type balancing weight can be conveniently adjusted on the lever so as to achieve the effect of adjusting a force arm, the hanging type balancing weight can be taken down, balancing weights with different weights can be conveniently replaced, the size of the balancing weight and the length of the force arm are easy to adjust, and the feeding mechanism is convenient to use. The adjusting range of the turning plate opening threshold value is wide, and the device is suitable for conveying cement with different specific gravities.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying equipment, in particular to a lever-type feeding mechanism for an air chute. Background Art

[0002] An air conveying chute (hereinafter collectively referred to as a chute) is a device that uses air flow to convey bulk materials along a pipeline. It can be used for easily fluidized powdery materials such as cement and fly ash. The chute uses a high-pressure centrifugal fan as a power source to keep the materials in the closed conveying chute in a fluidized state and slowly flow at the inclined end. During the cement production process, equipment such as packaging machines, bag aligning machines, and bag cleaning machines will all more or less experience cement overflow or leakage during operation. Therefore, a feeding funnel is usually connected to the feeding chute of the chute.

[0003] At present, the feeding chute of the chute is directly connected to the feeding funnel, and a air lock mechanism (usually an air lock valve) is needed to achieve the function of air locking without locking the material. For example, in the Chinese utility model patent with the publication number CN215797090U and the name of an air lock device for a raw material cyclone chute feeding chute, the used weight-type sealing flap (air lock valve) includes a flap, a rotating rod, a weight arm, and a weight piece. Using the lever principle, when the weight of the material on the flap exceeds the weight of the weight piece, discharging is achieved, and when the weight of the material on the flap is lower than the weight of the weight piece, air locking is achieved. However, it is not easy to adjust the weight of the counterweight on the weight-type sealing flap, and it is also difficult to fix the length of the force arm, resulting in limitations in the opening threshold of the flap. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lever-type feeding mechanism for an air chute to solve the problem that it is not easy to adjust the weight of the counterweight on the existing flap, and it is also difficult to fix the length of the force arm, resulting in limitations in the opening threshold of the flap.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A lever-type feeding mechanism for an air chute includes a chute. A plurality of lever-type feeding mechanisms are connected to the top of the chute. The lever-type feeding mechanism includes a feeding pipe, a flap, a lever, and a hook-type counterweight. The discharging end of the feeding pipe is communicated with the top of the chute. The flap is rotatably installed in the feeding pipe through a rotating shaft, and the rotating shaft is close to the inner side wall of the feeding pipe. The lever is connected to the outer end of the rotating shaft. The hook-type counterweight is movably connected to a hanging hole on the lever. The lever-type feeding mechanism is also provided with a limiting member adapted to the flap.

[0007] A further technical solution is that the hook-type counterweight includes a hook, weights, and a nut. The weights are sleeved on the tail of the hook, the nut is threadedly connected to the tail of the hook, and the nut abuts against the weights.

[0008] A further technical solution is that the restricting member is a baffle installed on the inner side wall of the blanking pipe. The baffle is located below the flap and close to the rotating shaft.

[0009] A further technical solution is that a push rod for controlling the angle of the flap is arranged on the outer side of the blanking pipe, and the top of the push rod abuts against the lower surface of the lever.

[0010] A further technical solution is that the push rod is threadedly connected to an ear plate on the outer side of the blanking pipe.

[0011] A further technical solution is that a ball head plate is arranged at the top of the push rod.

[0012] Compared with the prior art, at least one of the beneficial effects that the present utility model can achieve is as follows:

[0013] The present utility model provides a lever-type feeding mechanism for an air chute. The lever-type feeding mechanism also plays a role in locking air but not locking materials. On this basis, a plurality of hanging holes are arranged on the lever, which is convenient for adjusting the position of the hook-type counterweight on the lever to achieve the effect of adjusting the force arm. Moreover, the hook-type counterweight can be removed, which is convenient for replacing counterweights of different weights. The size of the counterweight and the length of the force arm are easy to adjust, and the adjustment range of the opening threshold of the flap is wide, which is suitable for the conveying of cements with different specific gravities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a lever-type feeding mechanism for an air chute according to the present utility model.

[0015] Figure 2 For the present utility model Figure 1 Schematic structural diagram of the lever-type feeding mechanism therein.

[0016] Figure 3 For the present utility model Figure 2 Schematic structural diagram from a partial cross-sectional view angle.

[0017] Reference numerals: 1, chute; 2, lever-type feeding mechanism; 3, blanking pipe; 4, flap; 5, lever; 6, hook-type counterweight; 7, rotating shaft; 8, hanging hole; 9, restricting member; 10, hook; 11, weights; 12, nut; 13, push rod; 14, ball head plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0020] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0021] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It 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. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" 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 directly connected or indirectly connected through an intermediate medium, and it can 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.

[0024] Example 1:

[0025] As shown in this embodiment Figure 1 、 Figure 2 and Figure 3 shown, a lever - type feeding mechanism for an air chute includes a chute 1. A plurality of lever - type feeding mechanisms 2 are connected to the top of the chute 1. The lever - type feeding mechanism 2 includes a feeding pipe 3, a flap 4, a lever 5, and a hanging - type counterweight 6. The discharging end of the feeding pipe 3 is communicated with the top of the chute 1. The flap 4 is rotatably installed in the feeding pipe 3 through a rotating shaft 7, and the rotating shaft 7 is close to the inner side wall of the feeding pipe 3. The lever 5 is connected to the outer end of the rotating shaft 7. The hanging - type counterweight 6 is movably connected to a hanging hole 8 on the lever 5. The lever - type feeding mechanism 2 is further provided with a limiting member 9 adapted to the flap 4.

[0026] Under the action of the hanging - type counterweight 6, the flap 4 can be in a closed state by means of the lever 5. When cement powder falls into the feeding pipe 3 and accumulates to a certain weight on the flap 4, until the closed state of the flap 4 is broken, the flap 4 flips to complete discharging. After the material is discharged, under the action of the hanging - type counterweight 6 again, the flap 4 is in a closed state again to achieve air locking. A plurality of hanging holes 8 are provided on the lever 5, which is convenient for adjusting the position of the hanging - type counterweight 6 on the lever to achieve the effect of adjusting the force arm. Moreover, the hanging - type counterweight 6 can be removed, which is convenient for replacing counterweights of different weights. The size of the counterweight and the length of the force arm are easy to adjust, and the adjustment range of the flap opening threshold is wide, which is suitable for the transportation of cements with different specific gravities.

[0027] Preferably, the hanging - type counterweight 6 includes a hook 10, a weight 11, and a nut 12. The weight 11 is sleeved on the tail of the hook 10, and the nut 12 is threadedly connected to the tail of the hook 10 and abuts against the weight 11.

[0028] The weight 11 on the hook 10 can be removed and replaced, and then the nut 12 is used to unhook the weight 11.

[0029] Preferably, the limiting member 9 is a baffle installed on the inner side wall of the feeding pipe 3. The baffle is located below the flap 4 and close to the rotating shaft 7.

[0030] The flap 4 rotates eccentrically with the rotating shaft 7 as the axis, which is convenient for discharging objects. The limiting member 9 being a baffle can ensure that the flap 4 does not flip arbitrarily, and under the action of the lever 5 and the hanging - type counterweight 6, the feeding pipe 3 is closed for air locking.

[0031] Embodiment Two:

[0032] On the basis of the above - mentioned embodiment, this embodiment shows that a push rod 13 for controlling the angle of the flap 4 is provided on the outer side of the feeding pipe 3, and the top of the push rod 13 abuts against the lower surface of the lever 5.

[0033] The inclination angle of the lever 5 can be controlled according to the height of the top rod 13, thereby controlling the opening angle of the flap 4 to achieve a closing effect. When there is a material blockage or too much material, the flap 4 is kept open with a small amplitude to minimize air leakage and achieve a slow-flow discharge effect.

[0034] Preferably, the push rod 13 is threadedly connected to the ear plate on the outside of the feeding pipe 3.

[0035] It is convenient to adjust the height of the top rod 13 arbitrarily, and then arbitrarily control the opening angle of the flap 4.

[0036] Preferably, a ball head plate 14 is provided on the top of the top rod 13 .

[0037] The ball head plate 14 can better cooperate with the flap 4 at any opening angle.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lever-type feeding mechanism for an air chute, comprising a chute (1), characterized in that: A plurality of lever-type feeding mechanisms (2) are connected to the top of the inclined chute (1). The lever-type feeding mechanism (2) includes a blanking pipe (3), a flap (4), a lever (5), and a hook-type counterweight (6). The discharging end of the blanking pipe (3) is communicated with the top of the inclined chute (1). The flap (4) is rotatably installed in the blanking pipe (3) through a rotating shaft (7), and the rotating shaft (7) is close to the inner side wall of the blanking pipe (3). The lever (5) is connected to the outer end of the rotating shaft (7). The hook-type counterweight (6) is movably connected to a hanging hole (8) on the lever (5). The lever-type feeding mechanism (2) is further provided with a limiting member (9) adapted to the flap (4).

2. The lever-type feeding mechanism for an air chute according to claim 1, wherein: The hook-type counterweight (6) includes a hook (10), a weight (11), and a nut (12). The weight (11) is sleeved on the tail of the hook (10). The nut (12) is threadedly connected to the tail of the hook (10), and the nut (12) abuts against the weight (11).

3. The lever-type feeding mechanism for the air chute according to claim 1, characterized in that: The limiting member (9) is a baffle installed on the inner side wall of the blanking pipe (3). The baffle is located below the flap (4) and close to the rotating shaft (7).

4. The lever-type feeding mechanism for an air chute according to claim 1, characterized in that: A push rod (13) for controlling the angle of the flap (4) is arranged on the outer side of the blanking pipe (3). The top of the push rod (13) abuts against the lower surface of the lever (5).

5. The lever-type feeding mechanism for an air chute according to claim 4, characterized in that: The push rod (13) is threadedly connected to an ear plate on the outer side of the blanking pipe (3).

6. The lever type feeding mechanism for the air chute according to claim 4, wherein: A ball head plate (14) is arranged at the top of the push rod (13).

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