Automatic scraping three-way valve

Abstract

The utility model relates to the technical field of scraping valve accessories of a belt conveyor transfer system, in particular to an automatic scraping three-way valve which comprises a valve body, an inlet is formed in the top of the valve body, and a first outlet and a second outlet are symmetrically formed in the two sides of the lower portion of the valve body. A turning plate assembly part is installed in a valve cavity of the valve body, the front end and the rear end of the turning plate assembly part movably penetrate out of a bearing seat at an installation hole in the corresponding side wall of the valve body and extend to the outer side of the bearing seat to be connected with a turning push rod mechanism, and the turning push rod mechanism is installed on the outer side wall of the valve body. The automatic scraping three-way valve of the belt conveyor transfer system is economical, practical, high in automation degree and convenient and flexible to operate, solves the problem that the valve is blocked due to the fact that materials are bonded on a valve turning plate due to high viscosity, and achieves improvement of the use efficiency of a conveyor and saving of resources.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper valve accessories of a belt conveyor transfer system, in particular to an automatic scraper three-way valve. Background Art

[0002] At present, belt conveyors are widely used in mines, power plants, cement plants, docks, etc. During the transportation process, materials are often divided into two belt conveyors, which requires a three-way valve to be installed under the unloading roller.

[0003] After searching, a new type of visual pneumatic three-way valve was disclosed in the patent document with patent application number CN202122749187.3. It mainly allows the operator to view the plastic particles being discharged through the set observation window and the transparent glass inside.

[0004] However, in actual use, for some moist or viscous materials, a large amount of material will adhere to the flap of the three-way valve, causing the valve to be blocked.

[0005] Since the valve is a closed space, the blocked material is not easy to clean. Even if an observation hole is opened on the valve body, it will take workers a long time to clean it.

[0006] Therefore, it is very necessary to develop a valve flap cleaning tool that is more economical, practical, highly automated, and easy to operate. Based on the actual use of three-way valves, this application has developed an automatic scraping three-way valve for belt conveyor transfer systems to better solve the problems existing in the prior art. Utility Model Content

[0007] The present invention is to solve one of the above-mentioned technical problems, and the technical solution adopted is: an automatic scraping three-way valve, including a valve body, an inlet is provided at the top of the valve body, a first outlet and a second outlet are symmetrically provided on both sides of the lower part of the valve body, a flap assembly is installed in the valve cavity of the valve body, the front and rear ends of the flap assembly are movably passed through the bearing seat at the mounting hole on the corresponding side wall of the valve body and extend to the outside thereof to be connected with a flip push rod mechanism, the flip push rod mechanism is installed on the outer side wall of the valve body, and the flip push rod mechanism is used to drive the flip assembly to flip and scrape material inside the valve cavity.

[0008] In any of the above schemes, it is preferred that the flap assembly includes a flap body installed in the valve cavity, the front and rear sides of the flap body are both abutted against the corresponding inner wall of the valve cavity, the interior of the flap body is hollow, and a flip shaft is bolted and fixedly installed at the lower part of the hollow cavity of the flap body, the front and rear ends of the flip shaft respectively move through the bearing seats at the corresponding mounting holes and extend to the outside of the valve body, the outer end of the flip shaft is hinged to the output end of the flip push rod mechanism, and a synchronous scraper mechanism is provided on both sides of the flap body.

[0009] In any of the above solutions, it is preferred that the flap body is used to block the inlet end of the first outlet or the inlet end of the second outlet, and the inlet end of the first outlet and the inlet end of the second outlet are symmetrically arranged and both are connected to the valve cavity.

[0010] In any of the above schemes, it is preferred that the synchronous scraping mechanism includes pulley units symmetrically installed on the front and rear sides of the flap body, and a steel wire rope is wound around each of the pulley units. One end of the steel wire rope is fixedly installed on the side wall corresponding to the internal channel of the first outlet, and the other end is fixed on the side wall corresponding to the internal channel of the second outlet, and the steel wire rope is in a tensioned state.

[0011] In any of the above schemes, it is preferred that the pulley unit includes a first pulley installed on the pulley seat on the upper left side of the flap body, a second pulley installed on the pulley seat on the lower left side of the flap body, a third pulley installed on the pulley seat on the lower right side of the flap body, and a fourth pulley installed on the pulley seat on the upper right side of the flap body, the left end of the wire rope is fixed on the wire rope seat on the side wall corresponding to the internal channel of the second outlet, and the outer end of the wire rope passes around the first pulley, the second pulley, the third pulley, and the fourth pulley in sequence and then is fixed on the side wall corresponding to the internal channel of the second outlet.

[0012] In any of the above solutions, it is preferred that the two steel ropes are symmetrically arranged.

[0013] In any of the above schemes, it is preferred that a left scraper is movably provided on the left side wall of the flap body near the second pulley, and the middle parts of both ends of the left scraper are fixedly mounted on the steel wire ropes on the front and rear sides. During the operation of the two steel wire ropes, the left scraper is driven to move horizontally along the left side wall of the flap body to scrape the material.

[0014] In any of the above schemes, it is preferred that a right scraper is movably provided at the right side wall of the flap body near the fourth pulley, and the middle parts of both ends of the right scraper are fixedly mounted on the steel wire ropes on the front and rear sides. During the operation of the two steel wire ropes, the right scraper is driven to move horizontally along the right side wall of the flap body to scrape the material.

[0015] In any of the above schemes, it is preferred that limited angle seats are respectively provided on the left and right sides of the lower part of the valve cavity, the outer sides of the limited angle seats are fixedly mounted on the inner wall of the valve cavity, and the inner sides of the limited angle seats are used to achieve abutment limitation on the flap body.

[0016] In any of the above schemes, it is preferred that the flip push rod mechanism includes an electro-hydraulic push rod hingedly mounted on the outer wall of the valve body on a fixed axis, a swing arm is movably hinged at the telescopic end of the electro-hydraulic push rod, and the lower end of the swing arm is fixedly mounted on the end of the flip shaft, and the flip shaft and the flap body are driven to swing by the telescopic movement of the electro-hydraulic push rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The utility model provides an economical, practical, highly automated, easy-to-operate and flexible automatic scraping three-way valve for a belt conveyor transfer system, which solves the problem of valve blockage caused by materials sticking to the valve flap due to high viscosity, thereby improving the efficiency of the conveyor and saving resources.

[0019] 2. Two movable left scrapers and right scrapers are placed on both sides of the flap body in the utility model, so that they can move with the wire rope. As the electro-hydraulic push rod is extended and retracted, the flip shaft and the flap body can be pushed to swing. Under the constraints of the wire ropes and the pulleys, the left scraper and the right scraper always slide in both directions along the flap, thereby achieving the effect of cleaning sticky materials.

[0020] 3. The synchronous scraping mechanism in the present invention does not require additional power. When the electro-hydraulic push rod is extended or retracted, it can drive the flap body to switch between the first outlet and the second outlet and complete the scraping at the same time.

[0021] 4. The three-way valve in the present invention has a simple overall structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or components are generally identified by similar reference numerals throughout the drawings. Elements or components in the drawings are not necessarily drawn to scale.

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 It is a schematic diagram of a partial top view of the structure of the present invention.

[0025] Figure 3 It is a schematic cross-sectional structural diagram of AA of the present invention.

[0026] Figure 4 This is a schematic diagram of the main structure of the flap assembly of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve body of the present utility model.

[0028] In the figure, 1. valve body; 2. inlet; 3. first outlet; 4. second outlet; 5. valve chamber; 6. bearing seat; 7. flap body; 8. tilting shaft; 9. wire rope; 10. pulley seat; 11. first pulley; 12. second pulley; 13. third pulley; 14. fourth pulley; 15. wire rope seat; 16. electro-hydraulic push rod; 17. swing arm; 18. left scraper; 19. right scraper; 20. limit angle seat; 21. groove space. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the present invention's technical solution and are therefore only examples and are not intended to limit the scope of protection of the present invention. Figure 1-Figure 5 As shown in .

[0030] Example 1: An automatic scraping three-way valve comprises a valve body 1, an inlet 2 is provided at the top of the valve body 1, a first outlet 3 and a second outlet 4 are symmetrically provided on both sides of the lower portion of the valve body 1, a flap assembly is installed in the valve cavity 5 of the valve body 1, the front and rear ends of the flap assembly are both movable through the bearing seat 6 at the mounting hole on the corresponding side wall of the valve body 1 and extend to the outside thereof to be connected to a flip push rod mechanism, the flip push rod mechanism is installed on the outer side wall of the valve body 1, and the flip push rod mechanism is used to drive the flip assembly to flip and scrape material inside the valve cavity 5. The automatic scraping three-way valve in the utility model is equipped with a flap assembly on the basis of the existing valve body 1 mechanism, and a scraping function is configured in the flap assembly, so that it can complete the scraping operation on the side wall of the flap body 7 during the flipping process. The flipping and scraping of the entire valve are powered by the flip push rod mechanism.

[0031] In any of the above schemes, it is preferred that the flap assembly includes a flap body 7 installed in the valve cavity 5, the front and rear sides of the flap body 7 are both abutted against the corresponding inner wall of the valve cavity 5, the interior of the flap body 7 is hollow, and a flip shaft 8 is bolted and fixedly installed at the lower part of the hollow cavity of the flap body 7, the front and rear ends of the flip shaft 8 respectively move through the bearing seat 6 at the corresponding mounting hole and extend to the outside of the valve body 1, the outer end of the flip shaft 8 is hinged to the output end of the flip push rod mechanism, and a synchronous scraper mechanism is provided on both sides of the flap body 7.

[0032] In any of the above schemes, it is preferred that the flap body 7 is used to block the inlet end of the first outlet 3 or the inlet end of the second outlet 4, and the inlet end of the first outlet 3 and the inlet end of the second outlet 4 are symmetrically arranged and are both connected to the valve cavity 5.

[0033] It should be noted that when the flap body 7 in the flap assembly is flipped left and right, it relies on the external flip push rod mechanism to drive the rotation of the flip shaft 8. The swing of the flip shaft 8 can realize the connection between the inlet 2 of the valve body 1 and the first outlet 3 or the second outlet 4.

[0034] In any of the above schemes, it is preferred that the synchronous scraping mechanism includes pulley units symmetrically installed on the front and rear sides of the flap body 7, and a steel wire rope 9 is wound around each of the pulley units. One end of the steel wire rope 9 is fixedly installed on the side wall corresponding to the internal channel of the first outlet 3, and the other end is fixed on the side wall corresponding to the internal channel of the second outlet 4. The steel wire rope 9 is in a tensioned state.

[0035] Two synchronous scraping mechanisms are installed on the front and rear sides of the flap body 7. When the flap body 7 swings, the restraint and limitation of the steel wire ropes 9 on the front and rear sides will enable the flap body 7 to achieve guided displacement by relying on various pulley units when swinging.

[0036] In any of the above schemes, it is preferred that the pulley unit includes a first pulley 11 installed on the pulley seat 10 on the upper left side of the flap body 7, a second pulley 12 installed on the pulley seat 10 on the lower left side of the flap body 7, a third pulley 13 installed on the pulley seat 10 on the lower right side of the flap body 7, and a fourth pulley 14 installed on the pulley seat 10 on the upper right side of the flap body 7, the left end of the wire rope 9 is fixed on the wire rope seat 15 on the side wall corresponding to the internal channel of the second outlet 4, and the outer end of the wire rope 9 passes around the first pulley 11, the second pulley 12, the third pulley 13, and the fourth pulley 14 in turn and is then fixed on the wire rope seat 15 on the side wall corresponding to the internal channel of the second outlet 4.

[0037] The pulley unit relies on the first pulley 11, the second pulley 12, the third pulley 13, and the fourth pulley 14 to cooperate with the wire rope 9 to complete the guide constraint. When the flap body 7 swings, since the wire rope 9 is always in a tensioned state, the flap body 7 relies on each pulley to play a guiding role; the flap body 7 has a certain displacement relative to the wire rope 9.

[0038] In any of the above solutions, it is preferred that the two steel ropes 9 are symmetrically arranged.

[0039] In any of the above schemes, it is preferred that the flip push rod mechanism includes an electro-hydraulic push rod 16 which is fixedly hingedly mounted on the outer wall of the valve body 1, and a swing arm 17 is movably hinged at the telescopic end of the electro-hydraulic push rod 16. The lower end of the swing arm 17 is fixedly mounted on the end of the flip shaft 8, and the flip shaft 8 and the flap body 7 are driven to swing by the telescopic movement of the electro-hydraulic push rod 16.

[0040] When the flip push rod mechanism is working, the electro-hydraulic push rod 16 is extended and retracted to drive the swing arm 17 to swing, which in turn drives the flip shaft to swing. When the flip shaft swings, it can drive the flap body 7 connected thereto to swing.

[0041] Example 2: Compared with Example 1, this example is different in that it also includes the following technical features:

[0042] In any of the above schemes, it is preferred that a left scraper 18 is movably provided at the left side wall of the flap body 7 near the second pulley 12, and the middle parts of both ends of the left scraper 18 are fixedly mounted on the steel wire ropes 9 on the front and rear sides. During the operation of the two steel wire ropes 9, the left scraper 18 is driven to move horizontally along the left side wall of the flap body 7 in the up and down directions to scrape the material.

[0043] In any of the above schemes, it is preferred that a right scraper 19 is movably provided at the right side wall of the flap body 7 near the fourth pulley 14, and the middle parts of both ends of the right scraper 19 are fixedly mounted on the steel wire ropes 9 on the front and rear sides. During the operation of the two steel wire ropes 9, the right scraper 19 is driven to move horizontally along the right side wall of the flap body 7 to scrape the material.

[0044] When the flap body 7 swings, it swings around the axis of the flip shaft 8. Since the left scraper 18 and the right scraper 19 are fixed at the corresponding positions of the wire rope 9, when the flap body 7 swings, it can slide relative to the left scraper 18 and the right scraper 19. Therefore, the material adhered to the flap body 7 can be scraped off under the action of the left scraper 18 and the right scraper 19.

[0045] In any of the above schemes, it is preferred that a limited angle seat 20 is respectively provided on the left and right sides of the lower part of the valve cavity 5, and the outer sides of the limited angle seat 20 are fixedly mounted on the inner wall of the valve cavity 5, and the inner sides of the limited angle seat 20 are used to achieve abutment limitation on the flap body 7.

[0046] During the fixed-axis swing of the flap body 7, the limit position can be constrained and limited by the limit angle seats 20 on the left and right sides.

[0047] A groove space 21 is provided at the bottom of the valve cavity at the lower end of each pulley unit for the corresponding pulley unit to swing. The groove space 21 can provide space for the pulley unit to swing without causing motion interference.

[0048] Specific working principle: This automatic scraping three-way valve incorporates a flap assembly based on the existing valve body 1 mechanism. This flap assembly also incorporates a scraping function, enabling it to scrape material from the sidewalls of the flap body 7 during the valve's reversal. Both the reversal and scraping operations are powered by the reversal push rod mechanism. As the flap body 7 swings around the reversal axis 8, the left scraper 18 and the right scraper 19 are fixed to corresponding positions on the wire rope 9. Therefore, the flap body 7 can slide relative to the left and right scrapers 18 and 19 during the reversal, allowing the scrapers 18 and 19 to scrape away material adhering to the flap body 7.

[0049] The utility model provides an economical, practical, highly automated, easy and flexible to operate automatic scraping three-way valve for a belt conveyor transfer system, which solves the problem of valve clogging caused by material adhering to the valve flap due to its high viscosity, thereby improving the efficiency of the conveyor and saving resources; two movable left scrapers 18 and right scrapers 19 are placed on both sides of the flap body 7, so that they can move with the wire rope 9, and as the electro-hydraulic push rod 16 is extended and retracted, the flip shaft and the flap body 7 can be pushed to swing. Under the constraints of the wire ropes 9 and the pulleys, the left scraper 18 and the right scraper 19 always slide in both directions along the flap, thereby achieving the effect of cleaning sticky materials; the synchronous scraping mechanism designed in the present application does not require additional power, and when the electro-hydraulic push rod 16 is extended and retracted, it can drive the flap body 7 to switch the first outlet 3 and the second outlet 4 while completing the scraping.

[0050] 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 the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. 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. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention fall within the scope of protection of the present invention.

[0051] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. Automatic scraping three-way valve, characterized by: The valve body comprises a valve body, an inlet is provided at the top of the valve body, a first outlet and a second outlet are symmetrically provided on both sides of the lower part of the valve body, a flap assembly is installed in the valve cavity of the valve body, the front and rear ends of the flap assembly are movably passed through the bearing seats at the mounting holes on the corresponding side walls of the valve body and extend to the outside thereof to be connected to a flip push rod mechanism, the flip push rod mechanism is installed on the outer side wall of the valve body, and the flip push rod mechanism is used to drive the flap assembly to flip and scrape materials inside the valve cavity; The flap assembly comprises a flap body installed in the valve cavity; synchronous scraping mechanisms are provided on both sides of the flap body; The synchronous scraping mechanism includes pulley units symmetrically mounted on the front and rear sides of the flap body, each pulley unit is wound with a steel wire rope, one end of the steel wire rope is fixedly mounted on the side wall corresponding to the internal passage of the first outlet, and the other end is fixed on the side wall corresponding to the internal passage of the second outlet, and the steel wire rope is in a tensioned state; The pulley unit includes a first pulley mounted on a pulley seat on the upper left side of the flap body, a second pulley mounted on the pulley seat on the lower left side of the flap body, a third pulley mounted on the pulley seat on the lower right side of the flap body, and a fourth pulley mounted on the pulley seat on the upper right side of the flap body, the left end of the steel wire rope being fixedly arranged on a steel wire rope seat on a side wall corresponding to the inner passage of the second outlet, the outer end of the steel wire rope passing through the first pulley, the second pulley, the third pulley, and the fourth pulley in sequence and then being fixed to the side wall corresponding to the inner passage of the second outlet; The two steel wire ropes are symmetrically arranged; A left scraper is movably provided at the left side wall of the flap body near the second pulley, and the middle parts of both ends of the left scraper are fixedly mounted on the steel wire ropes at the front and rear sides. During the operation of the two steel wire ropes, the left scraper is driven to move horizontally in the up and down directions along the left side wall of the flap body to scrape the material; A right scraper is movably provided at the right side wall of the flap body near the fourth pulley, and the middle parts of both ends of the right scraper are fixedly mounted on the steel wire ropes on the front and rear sides. During the operation of the two steel wire ropes, the right scraper is driven to move horizontally in the up and down directions along the right side wall of the flap body to scrape the material; The left scraper and the right scraper are both kept in a fixed state.

2. The automatic scraping three-way valve according to claim 1, characterized in that: The front and rear sides of the flap body are both in contact with the inner side walls corresponding to the valve cavity. The interior of the flap body is hollow, and a flip shaft is bolted and fixedly installed at the lower part of the hollow cavity of the flap body. The front and rear ends of the flip shaft respectively move through the bearing seats at the corresponding mounting holes and extend to the outside of the valve body. The outer end of the flip shaft is hinged to the output end of the flip push rod mechanism.

3. The automatic scraping three-way valve according to claim 2, characterized in that: The flap body is used to block the inlet end of the first outlet or the inlet end of the second outlet. The inlet end of the first outlet and the inlet end of the second outlet are symmetrically arranged and are both connected to the valve cavity.

4. The automatic scraping three-way valve according to claim 3, characterized in that: Limit angle seats are respectively provided on the left and right sides of the lower part of the valve cavity. The outer sides of the limit angle seats are fixedly mounted on the inner wall of the valve cavity, and the inner sides of the limit angle seats are used to achieve abutment limitation on the flap body.

5. The automatic scraping three-way valve according to claim 4, characterized in that: The flip push rod mechanism includes an electro-hydraulic push rod hingedly mounted on the outer side wall of the valve body on a fixed axis, a swing arm movably hingedly mounted on the telescopic end of the electro-hydraulic push rod, and the lower end of the swing arm is fixedly mounted on the end of the flip shaft. The flip shaft and the flap body are driven to swing by the telescopic movement of the electro-hydraulic push rod.

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