Discharge valve of hopper

Abstract

A discharging valve of a hopper belongs to the technical field of discharging valves and comprises a collecting hopper arranged on the lower portion of the hopper, a protective shell sleeved outside the collecting hopper and a matched discharging assembly. The discharging assembly comprises a push rod, a matched pull rod, a first connecting rod, a second connecting rod and a valve plate connecting rod, wherein the push rod and the matched pull rod are symmetrically hinged to the exterior of the protective shell through a rotating shaft; the first connecting rod is symmetrically hinged to the interior of the protective shell through the rotating shaft; the reset mechanism is arranged between the protective shell and the push rod, the free end of the first connecting rod is hinged to the top of the valve plate connecting rod, and the free end of the second connecting rod is hinged to the hinged position of the valve plate connecting rod. The discharging valve is integrally improved, so that the phenomenon of material leakage caused by external factors in the transferring process is avoided, and meanwhile the discharging valve has the advantages of being stable in structure, good in self-adaption and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of discharge valves, and in particular relates to a discharge valve for a hopper. Background Art

[0002] In automatic batching systems for hard, fast-moving materials, a transfer hopper is often used. This hopper transports the material to a designated location. Once there, a discharge valve opens to discharge the material into a silo or metering hopper. During this process, the selection and use of the discharge valve significantly impacts the system's production efficiency. Previous designs typically used a non-powered, automatically closing discharge valve. However, in practice, due to the inevitable oscillation of the hopper during transfer, and the valve's reliance on gravity for sealing, the valve often fails to close, causing material leakage during loading. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a discharge valve of a hopper, which can avoid leakage caused by external factors during the transportation process by improving the discharge valve as a whole, and has the characteristics of stable structure, good adaptability and long service life.

[0004] The technical solution adopted by the present invention is: a discharge valve of a hopper, comprising a collecting funnel arranged at the lower part of the hopper, a protective shell sleeved on the outside of the collecting funnel and a matching discharge assembly, the discharge assembly comprising a push rod and a matching pull rod symmetrically hinged on the outside of the protective shell by means of a rotating axis, a first connecting rod symmetrically hinged on the inside of the protective shell by means of a rotating axis, a second connecting rod and a valve plate connecting rod symmetrically hinged on the outside of the collecting funnel, a valve plate assembly arranged at the bottom of the valve plate connecting rod and cooperating with the discharge port of the collecting funnel, and a reset mechanism arranged between the protective shell and the push rod, the free end of the first connecting rod is hinged to the top of the valve plate connecting rod, and the free end of the second connecting rod is hingedly connected to the hinge of the valve plate connecting rod.

[0005] Furthermore, the reset mechanism includes an adjusting screw positioned at the free end of the push rod and a matching reset spring, one end of the reset spring is connected to the adjusting screw and the other end is connected to the outside of the protective shell.

[0006] Furthermore, the valve plate assembly includes a valve plate connected to the bottom of the valve plate connecting rod by means of an adjustable clamping mechanism.

[0007] Furthermore, the adjusting clamping mechanism includes a support seat, a connecting seat symmetrically arranged on both sides of the support seat, a support sleeve arranged between the support seat and the valve plate, and a compression spring sleeved on the support sleeve, and the connecting seat (9-2) is connected to the bottom of the valve plate connecting rod by means of a lock.

[0008] Furthermore, the lock includes a lock body sleeved on the connecting seat and the valve plate connecting rod and a matching locking bolt.

[0009] Furthermore, the support sleeve comprises a lower sleeve arranged on the upper end surface of the support seat and an upper sleeve arranged on the lower end surface of the valve plate (8).

[0010] The beneficial effects produced by adopting the utility model are as follows: through the overall improvement of the discharge valve, leakage caused by external factors is avoided during the transportation process, and the utility model has the characteristics of stable structure, good self-adaptation and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a structural sectional view of the utility model;

[0013] Figure 3 yes Figure 2 A magnified view of middle A;

[0014] In the accompanying drawings: 1 is the collecting funnel, 2 is the protective shell, 3 is the rotating shaft, 4 is the push rod, 4-1 is the pull rod, 4-2 is the adjusting screw, 4-3 is the reset spring, 5 is the first connecting rod, 6 is the second connecting rod, 7 is the valve plate connecting rod, 8 is the valve plate, 9-1 is the support seat, 9-2 is the connecting seat, 9-3 is the compression spring, 9-4 is the lock body, 9-5 is the lower sleeve, and 9-6 is the upper sleeve. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0016] See attached Figure 1-3A hopper discharge valve includes a collecting hopper 1 disposed at the bottom of the hopper, a protective shell 2 mounted on the outside of the collecting hopper 1, and a matching discharge assembly. The discharge assembly includes a push rod 4 and a matching pull rod 4-1 symmetrically hinged to the outside of the protective shell 2 via a rotating shaft 3, a first connecting rod 5 symmetrically hinged to the inside of the protective shell 2 via the rotating shaft 3, a second connecting rod 6 and a valve plate connecting rod 7 symmetrically hinged to the outside of the collecting hopper 1, a valve plate assembly disposed at the bottom of the valve plate connecting rod 7 and cooperating with the discharge port of the collecting hopper 1, and a reset mechanism disposed between the protective shell 2 and the push rod 4. The free end of the first connecting rod 5 is hinged to the top of the valve plate connecting rod 7, and the free end of the second connecting rod 6 is hinged to the hinge of the valve plate connecting rod 7. The ends of the pull rod 4-1 are welded between the free ends of the two push rods 4. The reset mechanism includes an adjusting screw 4-2 positioned at the free end of the push rod 4 and a matching reset spring 4-3, one end of the reset spring 4-3 is connected to the adjusting screw 4-2 and the other end is connected to the outside of the protective shell 2.

[0017] See attached Figure 2 and 3 The valve plate assembly includes a valve plate 8 connected to the bottom of the valve plate connecting rod 7 by means of an adjustable clamping mechanism. The adjustable clamping mechanism includes a support seat 9-1, a connecting seat 9-2 symmetrically arranged on both sides of the support seat 9-1, a support sleeve arranged between the support seat 9-1 and the valve plate 8, and a compression spring 9-3 sleeved on the support sleeve. The connecting seat 9-2 is connected to the bottom of the valve plate connecting rod 7 by means of a lock. The lock includes a lock body 9-4 sleeved on the connecting seat 9-2 and the valve plate connecting rod 7 and a matching locking bolt. The support sleeve includes a lower sleeve 9-5 arranged on the upper end surface of the support seat 9-1 and an upper sleeve 9-6 arranged on the lower end surface of the valve plate 8. The valve plate 8 and the collecting funnel 1 can be further sealed by means of a sealing ring; the adjustable clamping mechanism can achieve fine-tuning of the pre-tightening force between the valve plate 8 and the collecting funnel 1 to adapt to the transfer and unloading of different materials. A telescopic stroke limit structure is provided between the lower sleeve 9-5 and the upper sleeve 9-6.

[0018] In the specific implementation, in the initial state, one end of the return spring 4-3 is fixed to the protective shell 2, and the other end is fixed to the adjusting screw 4-2. The adjusting screw 4-2 is welded to the push rod 4. The push rod 4 is hinged to the rotating shaft 3. The bearing seat of the rotating shaft 3 is fixed to the protective shell 2. The first connecting rod 5 is fixed to the rotating shaft 3 by a jackscrew. The first connecting rod 5 is hinged to the valve plate connecting rod 7. The middle part of the valve plate connecting rod 7 is hinged to the collecting funnel 1. The second connecting rod 6 has one end hinged to the collecting funnel 1 and the other end coaxially hinged to the middle part of the valve plate connecting rod 7. The valve plate connecting rod 7 is connected to the adjusting clamping mechanism and the valve plate 8.

[0019] Properly adjust the adjusting screw 4-2 and stretch the reset spring 4-3, so that the push rod 4 is subjected to a downward pulling force, and the force is transmitted to the first connecting rod 5 through the rotating shaft 3, and then the force is transmitted to the valve plate connecting rod 7. The valve plate connecting rod 7 presses the valve plate 8 onto the discharge port of the aggregation funnel 1, thereby achieving a sealing effect. Even if there is a large shake during the transportation process, the valve plate 8 will fit tightly with the aggregation funnel 1 under the action of the reset spring 4-3 to prevent leakage.

[0020] When in the open state, due to the use of a flat seal of the valve plate 8 and under the action of the second connecting rod 6, the valve plate 8 moves obliquely downward, thereby avoiding the possibility of material getting stuck in the gap between the valve plate 8 and the collecting funnel 1, and the valve plate 8 will not be stuck as a whole due to material blockage.

[0021] 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 it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hopper discharge valve, comprising a collecting funnel (1) arranged at the bottom of the hopper, a protective shell (2) sleeved on the outside of the collecting funnel (1), and a matching discharge assembly, characterized in that: The unloading assembly comprises a push rod (4) and a matching pull rod (4-1) symmetrically hinged to the outside of the protective shell (2) by means of a rotating shaft (3), a first connecting rod (5) symmetrically hinged to the inside of the protective shell (2) by means of the rotating shaft (3), a second connecting rod (6) and a valve plate connecting rod (7) symmetrically hinged to the outside of the aggregation funnel (1), a valve plate assembly arranged at the bottom of the valve plate connecting rod (7) and cooperating with the discharge port of the aggregation funnel (1), and a reset mechanism arranged between the protective shell (2) and the push rod (4), the free end of the first connecting rod (5) being hinged to the top of the valve plate connecting rod (7), and the free end of the second connecting rod (6) being hinged to the hinge of the valve plate connecting rod (7).

2. The discharge valve of the hopper according to claim 1, characterized in that: The reset mechanism comprises an adjusting screw (4-2) positioned at the free end of the push rod (4) and a matching reset spring (4-3); one end of the reset spring (4-3) is connected to the adjusting screw (4-2) and the other end is connected to the outside of the protective shell (2).

3. The discharge valve of the hopper according to claim 1, characterized in that: The valve plate assembly comprises a valve plate (8) connected to the bottom of the valve plate connecting rod (7) by means of an adjusting clamping mechanism.

4. The discharge valve of the hopper according to claim 3, characterized in that: The regulating clamping mechanism comprises a support seat (9-1), a connecting seat (9-2) symmetrically arranged on both sides of the support seat (9-1), a supporting sleeve arranged between the support seat (9-1) and the valve plate (8), and a compression spring (9-3) sleeved on the supporting sleeve; the connecting seat (9-2) is connected to the bottom of the valve plate connecting rod (7) by means of a lock.

5. The discharge valve of the hopper according to claim 4, characterized in that: The lock comprises a lock body (9-4) sleeved on the connecting seat (9-2) and the valve plate connecting rod (7) and a matching locking bolt.

6. The discharge valve of the hopper according to claim 4, characterized in that: The support sleeve comprises a lower sleeve (9-5) arranged on the upper end surface of the support seat (9-1) and an upper sleeve (9-6) arranged on the lower end surface of the valve plate (8).

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