Counter weight type turnover valve

Abstract

The utility model discloses a heavy hammer type turnover valve, which relates to the technical field of valves and comprises a turnover valve channel, a valve plate is mounted in the turnover valve channel, a stress rod is connected to the outer side of the valve plate, a balance weight lever is arranged in the stress rod, a balance weight block is arranged on the balance weight lever, and a lifting block sliding up and down is arranged at one end of the balance weight lever. A connecting strip is fixed to the upper side of the lifting block, a threaded sleeve is fixed to the upper end of the connecting strip, a corresponding locking screw is arranged in the threaded sleeve, and a fastening plate is rotationally connected to the outer end of the locking screw. According to the overturning valve structure, the position of the balancing weight can be rapidly adjusted and determined, accurate switching of force on one side of the balancing weight can be achieved by changing the length and the weight of a force bearing arm on one side of the balancing weight, and then the minimum impact force, rushing through a valve plate, in an overturning valve channel is determined; and the increase and decrease of the balancing weights and the position switching adjustment are fast and convenient, and the use flexibility and convenience of the turnover valve are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a heavy hammer type rollover valve. Background Art

[0002] A weight-type flip valve is a valve used in a pipeline system, usually used to control the flow of fluid. Its working principle is to open and close the valve through the deadweight and inertia of the weight. When the fluid pressure acts on the weight, the weight will move downward to open the valve; when the fluid pressure decreases or disappears, the weight will move upward under the action of gravity to close the valve. Existing weight-type flip valves generally only have an adjustment structure for the lever arm, and the adjustment structure is relatively simple and rough. It is only adjusted by tightening the bolts and nuts, and does not have the ability to increase or decrease the counterweight on one side. It cannot achieve precise flow control, and may not be flexible enough for some occasions with high flow requirements. Therefore, the present invention proposes a weight-type flip valve to solve the problems mentioned in the above background technology. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a heavy hammer type rollover valve.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A heavy hammer type flip valve comprises a flip valve channel, a valve plate is installed in the flip valve channel, a force rod is connected to the outside of the valve plate, a counterweight rod is arranged in the force rod, a counterweight block is arranged on the counterweight rod, a lifting block sliding up and down is arranged at one end of the counterweight rod, a connecting strip is fixed on the upper side of the lifting block, a threaded sleeve is fixed on the upper end of the connecting strip, a corresponding locking screw is arranged in the threaded sleeve, a fastening plate is connected to the outer end of the locking screw, and the fastening plate is located on the outside of the counterweight block, and a knob located on the outside of the fastening plate is fixed to the outer end of the locking screw.

[0006] Preferably, the counterweight rod slides back and forth in the force-bearing rod, and a limiting groove corresponding to the counterweight rod is opened in the force-bearing rod. The length of the force arm of the force-bearing rod is adjusted by sliding the position of the counterweight rod in the force-bearing rod. According to the lever principle, the length of the force arm is negatively correlated with the force required to pry the fulcrum, that is, the longer the force arm, the greater the impact force required to flip the valve channel on one side and open the valve plate.

[0007] Preferably, a limiting block is provided at the lower end of the lifting block, and a positioning block is provided on the inner side of the upper end of the lifting block, and a plurality of positioning slots corresponding to the positioning blocks are opened on the upper outer side of the force-bearing rod. By lifting the lifting block at one end of the counterweight rod to make the top positioning block disengage from the positioning slot, the front and rear position of the counterweight rod in the force-bearing rod can be adjusted.

[0008] Preferably, a slide groove corresponding to the fastening plate is provided in the counterweight rod, and the width of the slide groove is greater than or equal to the width of the fastening plate. The fastening plate slides in the slide groove to start fastening the outer counterweight block.

[0009] Preferably, an insert block is provided on the inner side of the lower end of the fastening plate, and a slot corresponding to the insert block is provided on the outer side of the counterweight block, and the insert block and the corresponding slot facilitate tight engagement between the outer fastening plate and the corresponding added counterweight block.

[0010] Preferably, the counterweight rod is smooth and semi-cylindrical on the left and right, and a central through groove corresponding to the counterweight rod is opened in the center of several counterweight blocks. The left and right semi-cylindrical counterweight rods are provided to facilitate adding and removing counterweight blocks.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The flip valve structure provided in the utility model can quickly adjust and determine the position of the counterweight block. By changing the length of the force arm on one side of the counterweight and the size of the weight, the precise switching of the force on one side of the counterweight can be achieved, thereby determining the minimum impact force for breaking open the valve plate in the flip valve channel. In addition, the increase or decrease of the counterweight block and the position switching adjustment are fast and convenient, which greatly improves the flexibility and convenience of using the flip valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a heavy hammer type rollover valve proposed by the utility model;

[0014] Figure 2 This is a side sectional structural schematic diagram of a heavy hammer type rollover valve proposed by the utility model;

[0015] Figure 3 A schematic diagram of the connection structure between the force rod and the counterweight rod in a heavy hammer type rollover valve proposed in the utility model Figure 1 ;

[0016] Figure 4 A schematic diagram of the connection structure between the force rod and the counterweight rod in a heavy hammer type rollover valve proposed in the utility model Figure 2 .

[0017] In the figure: 1. flip valve channel; 2. valve plate; 3. force rod; 4. counterweight rod; 5. counterweight block; 6. positioning slot; 7. limiting slide groove; 8. lifting block; 9. connecting strip; 10. locking screw; 11. knob; 12. fastening plate; 13. plug-in block; 14. slide groove; 15. slot; 16. threaded sleeve. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-4 , a heavy hammer type flip valve, including a flip valve channel 1, a valve plate 2 is installed in the flip valve channel 1, a force rod 3 is connected to the outside of the valve plate 2, a counterweight rod 4 is arranged in the force rod 3, a counterweight block 5 is arranged on the counterweight rod 4, the counterweight rod 4 slides back and forth in the force rod 3, and a limiting slide groove 7 corresponding to the counterweight rod 4 is opened in the force rod 3. By sliding the position of the counterweight rod 4 in the force rod 3, the length of the force arm of the force rod 3 is adjusted. According to the lever principle, the length of the force arm is negatively correlated with the magnitude of the force required to pry the fulcrum, that is, the longer the force arm is, the greater the impact force required to open the valve plate 2 on one side of the flip valve channel is.

[0020] Furthermore, a limiting block is provided at the lower end of the lifting block 8, and a positioning block is provided on the inner side of the upper end of the lifting block 8, and a plurality of positioning slots 6 corresponding to the positioning blocks are provided on the upper outer side of the force-bearing rod 3. By lifting the lifting block 8 at one end of the counterweight rod 4, the top positioning block is disengaged from the positioning slot 6, and the front and rear positions of the counterweight rod 4 in the force-bearing rod 3 can be adjusted;

[0021] Furthermore, a lifting block 8 that slides up and down is provided at one end of the counterweight rod 4, a connecting strip 9 is fixed on the upper side of the lifting block 8, a threaded sleeve 16 is fixed on the upper end of the connecting strip 9, a corresponding locking screw 10 is provided in the threaded sleeve 16, a fastening plate 12 is connected to the outer end of the locking screw 10, and the fastening plate 12 is located on the outside of the counterweight block 5, and a knob 11 located on the outside of the fastening plate 12 is fixed to the outer end of the locking screw 10, a slide groove 14 corresponding to the fastening plate 12 is provided in the counterweight rod 4, and the width of the slide groove 14 is greater than or equal to the width of the fastening plate 12, and the fastening plate 12 slides in the slide groove 14 to start the purpose of fastening the outer counterweight block 5;

[0022] Furthermore, an insert block 13 is provided on the inner side of the lower end of the fastening plate 12, and a slot 15 corresponding to the insert block 13 is provided on the outer side of the counterweight block 5. The insert block 13 and the corresponding slot 15 facilitate the tight engagement of the outer fastening plate 12 with the corresponding added counterweight block 5. The counterweight rod 4 is smooth and semi-cylindrical on the left and right, and a central through groove corresponding to the counterweight rod 4 is provided in the center of several counterweight blocks 5. The left and right semi-cylindrical counterweight rods 4 are provided to facilitate the addition and subtraction of the counterweight block 5. When adding or subtracting the counterweight block 5, the lifting block 8 can be lifted up, and the fastening plate 12 can be disengaged from the corresponding slide groove 14, and then the fastening plate 12 can be flattened. The through groove can be inserted through the counterweight rod 4 to add or subtract the counterweight block 5, and then the fastening plate 12 can be flattened, and the lifting block 8 below can be made to pass through the slide groove 14 at the bottom, and the fastening plate 12 can be locked by rotating the knob 11 to make it close to the outer side of the counterweight block 5.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A weight-type rollover valve, comprising a rollover valve channel (1), characterized in that: A valve plate (2) is installed in the flip valve channel (1), a force-bearing rod (3) is connected to the outside of the valve plate (2), a counterweight rod (4) is arranged in the force-bearing rod (3), a counterweight block (5) is arranged on the counterweight rod (4), a lifting block (8) that slides up and down is arranged at one end of the counterweight rod (4), a connecting strip (9) is fixed on the upper side of the lifting block (8), a threaded sleeve (16) is fixed on the upper end of the connecting strip (9), a corresponding locking screw (10) is arranged in the threaded sleeve (16), the outer end of the locking screw (10) is connected to a fastening plate (12), and the fastening plate (12) is located on the outside of the counterweight block (5), and the outer end of the locking screw (10) is fixed to a knob (11) located on the outside of the fastening plate (12).

2. The heavy hammer type rollover valve according to claim 1, characterized in that: The counterweight rod (4) slides forward and backward in the force-bearing rod (3), and a limiting sliding groove (7) corresponding to the counterweight rod (4) is provided in the force-bearing rod (3).

3. The weight-type rollover valve according to claim 1, characterized in that: A limiting block is arranged at the lower end of the lifting block (8), a positioning block is arranged on the inner side of the upper end of the lifting block (8), and a plurality of positioning slots (6) corresponding to the positioning blocks are arranged on the upper outer side of the force-bearing rod (3).

4. The weight-type rollover valve according to claim 1, characterized in that: A sliding groove (14) corresponding to the fastening plate (12) is provided in the counterweight rod (4), and the width of the sliding groove (14) is greater than or equal to the width of the fastening plate (12).

5. The weight-type rollover valve according to claim 1, characterized in that: An insert block (13) is arranged on the inner side of the lower end of the fastening plate (12), and a slot (15) corresponding to the insert block (13) is opened on the outer side of the counterweight block (5).

6. The weight-type rollover valve according to claim 1, characterized in that: The counterweight rod (4) is in a smooth semi-cylindrical shape on the left and right, and a plurality of the counterweight blocks (5) are provided with central through grooves corresponding to the counterweight rod (4) at their centers.

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