A flap door structure that is easy to adjust

Abstract

The utility model discloses a flap door structure that is easy to adjust, including a valve seat, a valve plate installed on the front side of the valve seat, connecting strips fixedly installed on both sides of the front tail end of the valve plate, the tail ends of the two connecting strips are both open structures, the tail ends of the two connecting strips are both provided with through holes, and the through holes are connected to the openings; through-type threaded holes are provided on one side of the tail ends of the two connecting strips and at positions corresponding to the openings. The utility model fixes a support seat at the tail end of the valve seat and installs a shaft rod at the front end of the support seat, so that the rubber sleeve can be rotatably sleeved on the shaft rod. Such a design allows the hinge between the tail end of the valve plate and the valve seat to be easily adjusted to adapt to different working conditions and water flow pressures, and there is a certain distance between the inner wall of the rubber sleeve and the outer wall of the shaft rod, which can reduce the direct friction between the hinge between the valve plate and the tail end of the valve seat and extend the service life of the flap door.

Description

Technical Field

[0001] The utility model relates to the technical field of flap doors, in particular to a flap door structure which is easy to adjust. Background Art

[0002] The flap gate is a control valve commonly used in water conservancy projects, mainly used in pipe systems in the fields of irrigation, flood control, drainage, water treatment, etc. The flap gate is characterized by simple structure, easy opening and closing, and low price, so it is widely used in many water conservancy projects.

[0003] The working principle of the flap valve is to use the pressure of water flow to open and close the valve. When the valve is open, water can flow freely; when the valve is closed, the reverse flow of water can be prevented to maintain the water pressure in the pipeline stable. The opening and closing force of the flap valve comes from the pressure of the water source and does not require manual operation.

[0004] When the flap door is opened, the water flow continuously impacts the valve plate of the flap door, which will cause the hinge between the rear end of the valve plate and the rear end of the valve seat to vibrate continuously. The hinge between the valve plate and the rear end of the valve seat is constantly impacted and vibrated by the water flow, which may cause increased wear and tear on the hinge and gradual damage, thereby affecting the sealing performance and service life of the flap door. At the same time, the valve plate may suffer structural damage such as cracks and deformation in the process of being impacted and vibrated by the water flow, thereby affecting the normal use of the flap door.

[0005] Therefore, it is necessary to invent a flap door structure that is easy to adjust to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a flap door structure which is easy to adjust, so as to solve the above-mentioned shortcomings in the technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable flap door structure, comprising a valve seat, a valve plate is installed on the front side of the valve seat, connecting strips are fixedly installed on both sides of the front end of the valve plate, the tail ends of the two connecting strips are both open structures, the tail ends of the two connecting strips are both provided with through holes, and the through holes are connected to the openings;

[0008] A through-type threaded hole is provided on one side of the tail end of the two connecting strips and at a corresponding position to the opening, a bolt is threadedly installed in each threaded hole, a rubber sleeve is embedded and installed in the through holes at the tail ends of the two connecting strips, and a support seat is fixedly installed at the tail end of the valve seat and at a corresponding position to the two connecting strips.

[0009] As a preferred solution of the utility model, a shaft rod is fixedly installed at the front end of each support seat, and the rubber sleeves in the through holes at the tail ends of the two connecting strips are rotatably sleeved on the corresponding shaft rods, and there is a distance between the inner wall of the rubber sleeve and the outer wall of the shaft rod.

[0010] As a preferred solution of the utility model, a handle is fixedly installed on the front end of the valve plate, a connecting seat is fixedly installed in the middle position of the handle, a pull rope is provided on the front of the valve plate, a connecting head is fixedly installed on the lower end of the pull rope, and the connecting head is fixedly connected to the connecting seat.

[0011] As a preferred solution of the utility model, a guide ring is fixedly installed at the middle position of the front tail end of the valve seat, the upper end of the pull rope passes through the guide ring, and the guide ring and the connecting seat are on the same horizontal line.

[0012] As a preferred solution of the utility model, the pull rope is woven from steel wires, a ring body is provided at the front end of the pull rope, and the outer diameter of the ring body is larger than the inner diameter of the guide ring, and the guide ring and the ring body are both made of metal.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. By fixing the support seat at the rear end of the valve seat and installing a shaft rod at the front end of the support seat, the rubber sleeve can be rotatably sleeved on the shaft rod. This design allows the hinge between the rear end of the valve plate and the valve seat to be easily adjusted to adapt to different working conditions and water flow pressures. There is a certain distance between the inner wall of the rubber sleeve and the outer wall of the shaft rod, which can reduce the direct friction between the hinge between the valve plate and the rear end of the valve seat and extend the service life of the flapper.

[0015] 2. A handle and a pull rope are installed on the front of the valve plate to facilitate manual opening and closing of the valve. At the same time, it can be manually operated in an emergency to ensure the safe operation of the water conservancy project. The setting of the guide ring can ensure the correct guidance of the pull rope, avoid the pull rope from being stuck or deviating from the correct position, and reduce the possibility of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 This is a first perspective view of the overall structure of the utility model;

[0018] Figure 2 A second viewing angle diagram of the overall structure of the utility model;

[0019] Figure 3 It is an exploded view from the first perspective of the overall structure of the utility model;

[0020] Figure 4 It is an exploded view from a second perspective of the overall structure of the utility model;

[0021] Figure 5 For this utility model Figure 3 Magnified view of area A.

[0022] Description of reference numerals:

[0023] 1. Valve seat; 2. Valve plate; 3. Connecting strip; 31. Through hole; 32. Threaded hole; 33. Bolt; 34. Rubber sleeve; 4. Support seat; 41. Shaft; 5. Handle; 51. Connecting seat; 6. Pull rope; 61. Connecting head; 7. Guide ring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-5 The flap door structure shown is easy to adjust, comprising a valve seat 1, a valve plate 2 is mounted on the front of the valve seat 1, connecting strips 3 are fixedly mounted on both sides of the front tail end of the valve plate 2, the tail ends of the two connecting strips 3 are both open structures, the tail ends of the two connecting strips 3 are both provided with through holes 31, and the through holes 31 are connected to the openings, and the through holes 31 provided in the connecting strips 3 are designed so that a rubber sleeve 34 can be embedded therein, thereby providing good shock-absorbing and buffering performance for the hinged joint of the valve seat 1 and the tail end of the valve plate 2, and reducing friction;

[0026] A through-type threaded hole 32 is provided on one side of the tail end of the two connecting strips 3 and at the corresponding position of the opening, and a bolt 33 is threadedly installed in each threaded hole 32. Rubber sleeves 34 are embedded and installed in the through holes 31 at the tail ends of the two connecting strips 3. The setting of the rubber sleeves 34 can avoid direct collision between the through holes 31 at the tail ends of the connecting strips 3 and the shaft rod 41, thereby avoiding direct collision and vibration between the connecting strips 3 and the shaft rod 41, thereby reducing the vibration effect of the hinge between the tail end of the valve plate 2 and the tail end of the valve seat 1. A support seat 4 is fixedly installed at the tail end of the valve seat 1 and at the corresponding positions of the two connecting strips 3.

[0027] Furthermore, in the above technical solution, a shaft rod 41 is fixedly installed at the front end of each support seat 4, and the rubber sleeves 34 in the tail end through holes 31 of the two connecting strips 3 are rotatably sleeved on the corresponding shaft rod 41, and there is a gap between the inner wall of the rubber sleeve 34 and the outer wall of the shaft rod 41.

[0028] Furthermore, in the above technical solution, a handle 5 is fixedly installed on the front end of the valve plate 2, a connecting seat 51 is fixedly installed in the middle position of the handle 5, and a pull rope 6 is arranged on the front of the valve plate 2. The design of the handle 5 and the pull rope 6 makes it convenient to manually open and close the valve, and it can also be manually operated in an emergency, thereby improving safety. The pull rope 6 can be used to fix the valve plate 2 after it is opened, thereby reducing the vibration range of the valve plate 2 affected by the impact of the water flow, and a connector 61 is fixedly installed on the lower end of the pull rope 6, and the connector 61 is fixedly connected to the connecting seat 51.

[0029] Furthermore, in the above technical solution, a guide ring 7 is fixedly installed in the middle position of the front tail end of the valve seat 1, and the upper end of the pull rope 6 passes through the guide ring 7. The guide ring 7 and the connecting seat 51 are on the same horizontal line. The setting of the guide ring 7 ensures the correct guidance of the pull rope 6, avoids the pull rope 6 from being stuck or deviating from the position, and then affects the manual opening of the valve plate 2, reducing the risk of misoperation.

[0030] Furthermore, in the above technical solution, the pull rope 6 is woven with steel wires. The pull rope 6 woven with steel wires has high wear resistance and tensile resistance, and can withstand long-term use and the influence of the external environment. The front end of the pull rope 6 is equipped with a ring body, and the outer diameter of the ring body is larger than the inner diameter of the guide ring 7, so that after the pull rope 6 falls, it can prevent the pull rope 6 from falling directly into the water flow. The guide ring 7 is used to clamp the ring body at the front end of the pull rope 6, which is convenient for the subsequent collection of the pull rope 6. The guide ring 7 and the ring body are both made of metal.

[0031] The utility model provides a flap door structure that is easy to adjust. When in use, its working process is as follows:

[0032] Install the flap door in the pipeline system, ensure that the valve seat 1 is tightly combined with the pipeline, and the sealing performance between the valve plate 2 and the valve seat 1 is good. When the flap door is opened, if the water pressure is small, or in case of an unexpected situation, the valve plate 2 can be manually opened by pulling the pull rope 6, or when the water pressure is sufficient, the water pressure can impact the flap door and make the flap door open automatically. When closing the flap door, release the pull rope 6, and the valve plate 2 will automatically close under the action of the external water pressure to prevent the reverse flow of water.

[0033] After the flap door has been used for a period of time, the rubber sleeve 34 becomes aged. The flap door can be repaired by removing the bolt 33 at the rear end of the connecting strip 3 and removing the shaft rod 41 from the support seat 4. The shaft rod 41 is then removed from the through hole 31 at the rear end of the connecting strip 3, and the rubber sleeve 34 in the through hole 31 is removed and replaced with a new rubber sleeve 34. The shaft rod 41 is then reinsert into the rubber sleeve 34 and mounted on the support seat 4 again. This completes the repair of the flap door.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flap door structure that is easy to adjust, comprising a valve seat (1), characterized in that: The front side of the valve seat (1) is covered with a valve plate (2), and connecting strips (3) are fixedly installed on both sides of the front end of the valve plate (2), and the tail ends of the two connecting strips (3) are both open structures. The tail ends of the two connecting strips (3) are both provided with through holes (31), and the through holes (31) are connected to the openings; A through-type threaded hole (32) is provided on one side of the tail end of the two connecting strips (3) and at a position corresponding to the opening, a bolt (33) is threadedly installed in each of the threaded holes (32), a rubber sleeve (34) is embedded in the through hole (31) at the tail end of the two connecting strips (3), and a support seat (4) is fixedly installed at the tail end of the valve seat (1) and at a position corresponding to the two connecting strips (3).

2. The adjustable flap door structure according to claim 1, characterized in that: A shaft (41) is fixedly mounted at the front end of each support seat (4), and the rubber sleeves (34) in the through holes (31) at the rear ends of the two connecting strips (3) are rotatably sleeved on the corresponding shaft (41), and there is a gap between the inner wall of the rubber sleeve (34) and the outer wall of the shaft (41).

3. The adjustable flap door structure according to claim 1, characterized in that: A handle (5) is fixedly mounted on the front end of the valve plate (2), a connecting seat (51) is fixedly mounted in the middle of the handle (5), a pull rope (6) is provided on the front of the valve plate (2), a connecting head (61) is fixedly mounted on the lower end of the pull rope (6), and the connecting head (61) is fixedly connected to the connecting seat (51).

4. The adjustable flap door structure according to claim 3, characterized in that: A guide ring (7) is fixedly installed at the middle position of the front tail end of the valve seat (1), and the upper end of the pull rope (6) passes through the guide ring (7). The guide ring (7) and the connecting seat (51) are on the same horizontal line.

5. The adjustable flap door structure according to claim 3, characterized in that: The pull rope (6) is woven from steel wires. A ring body is provided at the front end of the pull rope (6). The outer diameter of the ring body is greater than the inner diameter of the guide ring (7). Both the guide ring (7) and the ring body are made of metal.

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