Internal self-cleaning pneumatic full-lining ball valve

Abstract

The utility model relates to the technical field of full-lining ball valves, and particularly discloses an internal self-cleaning pneumatic full-lining ball valve which comprises an actuator, a valve body is installed below the actuator, the power output end of the actuator is connected with a driving rod, a ball body is fixed to the end, penetrating into the valve body, of the driving rod, a circulation hole is formed in the ball body, and the valve body is connected with the valve body. A cleaning mechanism is arranged on one side of the ball body; the cleaning mechanism comprises abutting blocks, the two abutting blocks are rotationally connected to the top end and the bottom end of the ball body correspondingly, the ball valve is opened and closed through cooperation of the actuator, the valve body, the driving rod and the ball body so that a medium can circulate, and through cooperation of the abutting blocks, a connecting plate, a fixing plate, a metal plate, a clamping block and a rubber layer, when the ball body rotates to open and close the ball valve, the medium can be cleaned. Impurities and media on the outer wall of the ball body can be scraped, and the situation that adsorption is difficult to remove, and normal use of the ball valve is affected due to thickening and crusting after long time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of full-lined ball valves, in particular to a pneumatic full-lined ball valve capable of internal self-cleaning. Background Art

[0002] Pneumatic ball valve is a ball valve with pneumatic actuator. The execution speed of pneumatic actuator is relatively fast, and the fastest switching speed is 0.05 seconds / time, so it is usually called pneumatic quick-cut ball valve. Pneumatic ball valve is evolved from plug valve. It has the same 90-degree rotation action, but the difference is that the plug body is a sphere with a circular through hole or channel passing through its axis.

[0003] In the existing technology, during the operation of the ball valve, impurities and dirt in the medium affect the cleanliness and smoothness of the conveying pipeline, and the filter structure causes the pipeline conveying volume to decrease, and cleaning and maintenance are relatively inconvenient;

[0004] The existing patent (Announcement No.: CN216789295U) discloses a new type of pneumatic fluorine-lined ball valve with a compact and reasonable structure, the smallest inner cavity space of the valve body, reducing medium retention. In addition, the special molding process makes the sealing surface density good, and the herringbone annular PTFE packing combination makes the valve achieve zero leakage.

[0005] In response to the above problems, although the solution provided by the existing patent can reduce medium retention by setting a smaller space in the inner cavity of the valve body, some impurity media will still be adsorbed on the outer wall of the sphere, causing the sphere to crust over time, thereby affecting the rotation of the sphere. Summary of the invention

[0006] The purpose of the utility model is to provide an internal self-cleaning pneumatic fully lined ball valve, which can scrape away impurities and media on the outer wall of the ball when the ball rotates to open and close the ball valve, so as to avoid the situation where adsorption is difficult to remove, and the thickening and crusting over time will affect the normal use of the ball valve, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal self-cleaning pneumatic fully lined ball valve, comprising an actuator, a valve body is installed below the actuator, and a driving rod is connected to the power output end of the actuator, a ball is fixed at one end of the driving rod that penetrates the valve body, and a flow hole is opened inside the ball, and a cleaning mechanism is arranged on one side of the ball;

[0008] The cleaning mechanism includes a resistance block, the two resistance blocks are rotatably connected to the top and bottom ends of the sphere respectively, and a connecting plate is fixed to the outer side of the resistance block, the connecting plate is connected to a fixing plate facing the outer wall of the sphere, and a metal plate is fixed to the outer wall of the fixing plate, a clamping block is fixed to the side of the metal plate away from the outer wall of the fixing plate, and a rubber layer is provided on the outer side of the metal plate.

[0009] Preferably, the metal plate has an arc-shaped structure, and the metal plate is bonded to the rubber layer.

[0010] Preferably, a bearing rod is passed through the bottom end of the abutment block below the sphere, and a diverter block is fixed to the outer wall of the connecting plate away from the sphere.

[0011] Preferably, one end of the bearing rod that passes through the abutment block is provided with a connecting end, and a bearing mechanism is provided on one side of the connecting end.

[0012] Preferably, the bearing mechanism comprises a ball bearing, and the ball bearing is embedded in a position at the bottom end of the bearing rod corresponding to the connecting end, and a sealing gasket is fixed to the outer wall of the abutment block facing the sphere.

[0013] Preferably, the bearing mechanism further comprises a placement groove, the placement groove is arranged on the inner wall of the interference block, and a interference roller is rotatably connected inside the placement groove.

[0014] Preferably, the abutment roller is in close contact with the ball, and the ball is in close contact with the sealing gasket.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The actuator, valve body, driving rod and ball cooperate to open and close the ball valve to allow the medium to flow. Through the resistance block, connecting plate, fixing plate, metal plate and clamping block, and in combination with the rubber layer, the impurities and medium on the outer wall of the ball can be scraped off when the ball rotates to open and close the ball valve, avoiding the situation where the impurities and medium are difficult to remove due to adsorption, which will thicken and form crust over time and affect the normal use of the ball valve;

[0017] 2. Through the connection end and the ball bearing, the ball is supported and stabilized to rotate stably to avoid tilting and instability. At the same time, the sealing gasket is used to improve the airtightness of the ball and the resistance block to avoid leakage of the medium. The installation groove and the resistance roller are used to improve the smoothness of the ball rotation process to avoid jamming and affect the use of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the sphere of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the fixing plate of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing plate of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the friction roller of the utility model.

[0024] Description of reference numerals:

[0025] 1. Actuator; 2. Valve body; 3. Driving rod; 4. Ball; 5. Flow hole; 6. Cleaning mechanism; 601. Resistance block; 602. Connecting plate; 603. Fixing plate; 604. Metal plate; 605. Block; 606. Rubber layer; 7. Load-bearing rod; 8. Diverter block; 9. Connecting end; 10. Load-bearing mechanism; 1001. Ball bearing; 1002. Sealing gasket; 1003. Mounting groove; 1004. Resistance roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] The utility model provides a technical solution:

[0028] See also Figures 1 to 4 A pneumatic fully lined ball valve with internal self-cleaning comprises an actuator 1, a valve body 2 is installed below the actuator 1, a driving rod 3 is connected to the power output end of the actuator 1, a ball 4 is fixed to one end of the driving rod 3 that penetrates the valve body 2, a flow hole 5 is opened inside the ball 4, and a cleaning mechanism 6 is arranged on one side of the ball 4; the cleaning mechanism 6 comprises a resistance block 601, two resistance blocks 601 are rotatably connected to the top and bottom ends of the ball 4 respectively, a connecting plate 602 is fixed to the outer side of the resistance block 601, and a connecting plate 602 is arranged on the outer side of the resistance block 601. The plate 602 is connected to a fixed plate 603 on the outer wall facing the sphere 4, a metal plate 604 is fixed to the outer wall of the fixed plate 603, a clamping block 605 is fixed to the side of the outer wall of the metal plate 604 away from the fixed plate 603, a rubber layer 606 is sleeved on the outside of the metal plate 604, the structure of the metal plate 604 is an arc structure, the metal plate 604 and the rubber layer 606 are bonded and connected, a bearing rod 7 is passed through the bottom end of the resistance block 601 below the sphere 4, and a diverter block 8 is fixed to the outer wall of the connecting plate 602 away from the sphere 4.

[0029] By adopting the above technical scheme, the actuator 1 controls the driving rod 3 and drives the ball 4 to make the flow hole 5 communicate with or close the flow channel of the valve body 2. The two abutment blocks 601 are fixed by the connecting plate 602, thereby abutting against the top and bottom ends of the ball 4. The connecting plate 602 is provided with a metal plate 604 through the fixing plate 603. The two blocks 605 set on the metal plate 604 abut against the outer wall of the ball 4. At the same time, the rubber layer 606 is bonded to the outer wall of the metal plate 604 and the block 605, which can scrape off the impurity medium adsorbed by the ball 4 and achieve the effect of internal self-cleaning. The supporting rod 7 is used to support the ball 4 to rotate from the bottom. The connecting plate 602 fixes the conical diversion block 8 to facilitate the flow of the medium and avoid adsorption on the connecting plate 602.

[0030] Specifically, Figure 2 and Figure 5 As shown, one end of the load-bearing rod 7 that passes through the resistance block 601 has a connecting end 9, and a load-bearing mechanism 10 is provided on one side of the connecting end 9. The load-bearing mechanism 10 includes a ball bearing 1001, and the ball bearing 1001 is embedded in the position of the bottom end of the load-bearing rod 7 corresponding to the connecting end 9. A sealing gasket 1002 is fixed on the outer wall of the resistance block 601 facing the sphere 4. The load-bearing mechanism 10 also includes a seating groove 1003, and the seating groove 1003 is provided on the inner wall of the resistance block 601. A resistance roller 1004 is rotatably connected inside the seating groove 1003, and the resistance roller 1004 is tightly fitted with the sphere 4, and the sphere 4 is tightly fitted with the sealing gasket 1002.

[0031] By adopting the above technical solution, the connecting end 9 fixed at the bottom end of the sphere 4 is connected to the ball bearing 1001 embedded in the supporting rod 7, so as to maintain the stable rotation of the sphere 4. At the same time, the sealing performance of the contact between the resistance block 601 and the sphere 4 is improved through the sealing gasket 1002, and the smoothness of the rotation process of the sphere 4 is improved through the resistance roller 1004 in front of the mounting groove 1003.

[0032] Working principle: First, the actuator 1 drives the driving rod 3 to allow the ball 4 to rotate inside the valve body 2 under the support of the bearing rod 7, so that the flow hole 5 is aligned with the flow channel or misaligned, and the connecting plate 602 fixed by the resistance block 601 is installed through the fixing plate 603, so that the block 605 is in resistance against the outer wall of the ball 4, and the rubber layer 606 is sleeved to scrape off the external adsorbed dust and impurities when the ball 4 is opened and closed, and the connecting plate 602 in the flow channel is prevented from blocking the medium through the conical diversion block 8. The bearing rod 7 allows the connecting end 9 to support the ball 4 for stable rotation through the ball bearing 1001. At the same time, the bearing rod 7 fixes the resistance block 601, supports the two resistance blocks 601 and the connecting plate 602, and improves the sealing of the ball 4 and the resistance block 601 through the sealing gasket 1002. At the same time, the resistance roller 1004 connected by the mounting groove 1003 is rotated to improve the smoothness of the ball 4 when rotating.

[0033] 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 in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A pneumatic fully lined ball valve capable of internal self-cleaning, comprising an actuator (1), characterized in that: A valve body (2) is installed below the actuator (1), and a driving rod (3) is connected to the power output end of the actuator (1). A ball (4) is fixed to one end of the driving rod (3) that penetrates into the valve body (2), and a flow hole (5) is provided inside the ball (4). A cleaning mechanism (6) is provided on one side of the ball (4); The cleaning mechanism (6) comprises a resistance block (601), wherein the two resistance blocks (601) are rotatably connected to the top and bottom ends of the sphere (4) respectively, and a connecting plate (602) is fixed to the outer side of the resistance block (601), and the connecting plate (602) is connected to a fixing plate (603) facing the outer wall of the sphere (4), and a metal plate (604) is fixed to the outer wall of the fixing plate (603), and a clamping block (605) is fixed to the side of the outer wall of the metal plate (604) away from the fixing plate (603), and a rubber layer (606) is provided on the outer side of the metal plate (604).

2. The internal self-cleaning pneumatic fully lined ball valve according to claim 1, characterized in that: The structure of the metal plate (604) is an arc-shaped structure, and the metal plate (604) is bonded to the rubber layer (606).

3. The internal self-cleaning pneumatic fully lined ball valve according to claim 1, characterized in that: A bearing rod (7) is passed through the bottom end of the abutment block (601) below the sphere (4), and a diverter block (8) is fixed to the outer wall of the connecting plate (602) away from the sphere (4).

4. The internal self-cleaning pneumatic fully lined ball valve according to claim 3 is characterized by: One end of the bearing rod (7) that passes through the abutment block (601) is provided with a connecting end (9), and a bearing mechanism (10) is provided on one side of the connecting end (9).

5. The internal self-cleaning pneumatic fully lined ball valve according to claim 4, characterized in that: The bearing mechanism (10) comprises a ball bearing (1001), the ball bearing (1001) being embedded in a position at the bottom end of the bearing rod (7) corresponding to the connecting end (9), and a sealing gasket (1002) being fixed to the outer wall of the abutment block (601) facing the sphere (4).

6. The internal self-cleaning pneumatic fully lined ball valve according to claim 5, characterized in that: The bearing mechanism (10) further comprises a placement groove (1003), wherein the placement groove (1003) is provided on the inner wall of the abutment block (601), and a abutment roller (1004) is rotatably connected inside the placement groove (1003).

7. The internal self-cleaning pneumatic fully lined ball valve according to claim 6, characterized in that: The abutting roller (1004) is tightly fitted to the ball (4), and the ball (4) is tightly fitted to the sealing gasket (1002).

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