A ball valve with earthquake resistance

Abstract

This utility model belongs to the field of ball valve technology and discloses a ball valve with anti-vibration function. It includes a ball valve body, a ball valve opening / closing rod rotatably connected to the inner wall of the ball valve body, a turntable fixedly connected to the outer surface of the ball valve opening / closing rod, a handle fixedly connected to the outer surface of the turntable, and a mating platform fixedly connected to the outer surface of the ball valve body. The upper surface of the mating platform has a first insertion hole and a second insertion hole. An anti-rotation mechanism is provided inside the turntable. The anti-rotation mechanism includes a limiting frame. Through the cooperation of the limiting frame, slider, insertion rod, and first spring, the insertion rod connected to the slider is inserted into the first insertion hole of the mating platform, which can prevent high-frequency vibration from causing the turntable and ball valve opening / closing rod to rotate independently. Combined with the pull rod, pull plate, and second spring of the limiting mechanism, pulling the pull plate can release the limiting with one click, solving the problem of cumbersome emergency opening and closing operations in existing structures.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a ball valve with anti-vibration function. Background Technology

[0002] A ball valve is a commonly used fluid control element. Its core consists of a valve body, a ball with a central through-hole, and a valve stem. The valve stem drives the ball to rotate 90°, which can align the ball's through-hole with the pipeline passage (open, low flow resistance) or completely offset it (close, tight seal). Some models can also fine-tune the flow rate. It has a compact structure, opens and closes quickly, and is suitable for various fluids such as water, oil, and gas. It is widely used in pipeline systems in chemical, municipal, and energy industries.

[0003] A shock-resistant soft-seal ball valve with publication number CN217030123U includes a soft-seal ball valve body; a pair of support plates are provided at the bottom of the soft-seal ball valve body; a fixing block is provided at the bottom end of the support plate; a first groove is opened at the top end of the fixing block; the bottom end of the support plate is slidably connected to the first groove; the support plate and the first groove are connected by a first spring.

[0004] The aforementioned device can reduce the loosening of the soft-seal ball valve body and pipeline caused by vibration, which could lead to media leakage and losses. However, under high-frequency vibration conditions, it is still difficult to prevent the ball valve opening and closing components from rotating on their own. In addition, existing protection measures against loosening and rotation of ball valves mostly adopt bolt fastening or insertion-type limiting structures. In scenarios where the ball valve needs to be opened and closed urgently, such structures are often difficult to achieve one-click release of the limiting state due to cumbersome operation steps, which affects the timeliness of the ball valve opening and closing operation and cannot meet the requirements of convenient operation and emergency response speed in practical applications. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing anti-vibration ball valves cannot prevent the opening and closing components such as the valve stem and turntable from rotating under high-frequency vibration conditions. Furthermore, the existing anti-rotation structures that use bolt fastening or insertion-type limiting are cumbersome to operate when the ball valve needs to be opened or closed urgently, and cannot achieve one-button release of the limit, thus affecting the timeliness of opening and closing operations. Therefore, this invention proposes a ball valve with anti-vibration function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A ball valve with anti-vibration function includes a ball valve body, a ball valve opening and closing rod rotatably connected to the inner wall of the ball valve body, a turntable fixedly connected to the outer surface of the ball valve opening and closing rod, a handle fixedly connected to the outer surface of the turntable, a mating platform fixedly connected to the outer surface of the ball valve body, and a first insertion hole and a second insertion hole opened on the upper surface of the mating platform.

[0008] The turntable is equipped with an anti-rotation mechanism, which includes a limiting frame. The bottom surface of the limiting frame is fixedly connected to the upper surface of the turntable. A slider is slidably connected to the inner wall of the limiting frame. The outer surface of the slider is slidably connected to the turntable. A plug is fixedly connected to the bottom surface of the slider. The bottom end of the plug is inserted into the first socket and slidably connected to the first socket.

[0009] The limiting frame is provided with a limiting mechanism inside, the limiting mechanism including a first limiting hole, a second limiting hole, and a pull rod;

[0010] A buffer mechanism is provided below the ball valve body.

[0011] Preferably, a pressure rod is fixedly connected to the upper surface of the slider, the outer surface of the pressure rod is slidably connected to the limiting frame, and a pressure plate is fixedly connected to the top end of the pressure rod.

[0012] Preferably, a first spring is sleeved on the outside of the pressure rod, and the two ends of the first spring are fixedly connected to the inner top wall of the limiting frame and the upper surface of the slider, respectively.

[0013] Preferably, the first limiting hole and the second limiting hole are respectively opened on the outer surface of the slider, the pull rod passes through the limiting frame and extends into the interior of the first limiting hole, and the pull rod is slidably connected to the limiting frame and the first limiting hole, and one end of the pull rod is fixedly connected to a pull plate.

[0014] Preferably, a second spring is sleeved on the outer surface of the pull rod, and the two ends of the second spring are fixedly connected to the limiting frame and the pull plate, respectively.

[0015] Preferably, the buffer mechanism includes a connecting bucket, which is fixedly connected to the ball valve body. A transmission rod is fixedly connected to the bottom surface of the connecting bucket. A buffer cylinder is slidably connected to the outer surface of the transmission rod. A damper is fixedly connected to the bottom surface of the transmission rod. The bottom end of the damper is fixedly connected to the inner bottom wall of the buffer cylinder. A mounting plate is fixedly connected to the bottom end of the buffer cylinder.

[0016] Preferably, a buffer spring is fitted on the outer surface of the damper, and the two ends of the buffer spring are fixedly connected to the transmission rod and the inner bottom wall of the buffer cylinder, respectively.

[0017] Compared with the prior art, this utility model provides a ball valve with anti-vibration function, which has the following beneficial effects:

[0018] 1. This utility model uses a limiting frame, slider, and plug rod of an anti-rotation mechanism in conjunction with a first spring. The plug rod connected to the slider is inserted into the first insertion hole of the mating table, which can prevent the turntable and ball valve opening and closing rod from rotating on their own due to high-frequency vibration. With the pull rod, pull plate and second spring of the limiting mechanism, the limiting can be released with one click by pulling the pull plate, which solves the problem of cumbersome emergency opening and closing operation in the existing structure.

[0019] 2. This utility model utilizes the connecting bucket, transmission rod, damper, and buffer spring of the buffer mechanism to work together. When vibration occurs, the connecting bucket transmits the vibration force to the transmission rod. The damper and buffer spring absorb and weaken the vibration energy within the buffer cylinder, reducing the impact of vibration force on the ball valve body and the pipeline connection, and lowering the risk of water or other media leakage. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the image;

[0023] Figure 4 This is a three-dimensional structural diagram of the mating platform, the first socket, and the second socket of this utility model.

[0024] In the picture:

[0025] 1. Ball valve body; 2. Ball valve opening / closing rod; 3. Turntable; 4. Handle; 5. Mating platform; 6. First insertion hole; 7. Second insertion hole; 8. Limiting frame; 9. Sliding block; 10. Insertion rod; 11. Pressure rod; 12. Pressure plate; 13. First spring; 14. First limiting hole; 15. Second limiting hole; 16. Pull plate; 17. Pull rod; 18. Second spring; 19. Connecting bucket; 20. Buffer cylinder; 21. Transmission rod; 22. Damper; 23. Buffer spring; 24. Mounting plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-4 A ball valve with anti-vibration function includes a ball valve body 1, a ball valve opening and closing rod 2 rotatably connected to the inner wall of the ball valve body 1, a turntable 3 fixedly connected to the outer surface of the ball valve opening and closing rod 2, and a handle 4 fixedly connected to the outer surface of the turntable 3. The handle 4 can be used to rotate the turntable 3 and the ball valve opening and closing rod 2 to realize the opening and closing of the ball valve body 1.

[0028] A mating platform 5 is fixedly connected to the outer surface of the ball valve body 1. A first insertion hole 6 and a second insertion hole 7 are provided on the upper surface of the mating platform 5. The first insertion hole 6 and the second insertion hole 7 provided on the mating platform 5 are spaced 90 degrees apart.

[0029] The turntable 3 is equipped with an anti-rotation mechanism, which includes a limit frame 8. The bottom surface of the limit frame 8 is fixedly connected to the upper surface of the turntable 3. A slider 9 is slidably connected to the inner wall of the limit frame 8. The limit frame 8 limits the sliding trajectory of the slider 9 to ensure its precise movement.

[0030] The outer surface of the slider 9 is slidably connected to the turntable 3. The bottom surface of the slider 9 is fixedly connected to the insertion rod 10. The bottom end of the insertion rod 10 is inserted into the first insertion hole 6 and slidably connected to the first insertion hole 6. The insertion rod 10 and the first insertion hole 6 cooperate to directly restrict the rotation of the turntable 3.

[0031] A pressure rod 11 is fixedly connected to the upper surface of the slider 9. The outer surface of the pressure rod 11 is slidably connected to the limiting frame 8. A pressure plate 12 is fixedly connected to the top of the pressure rod 11. The pressure plate 12 facilitates the operator to apply force to drive the pressure rod 11 to move.

[0032] A first spring 13 is sleeved on the outside of the pressure rod 11. The two ends of the first spring 13 are fixedly connected to the inner top wall of the limiting frame 8 and the upper surface of the slider 9, respectively. The first spring 13... Figure 3 When the first spring 13 is in a stretched state, it can pull up the slider 9 when the first spring 13 is elastically reset, so that the insertion rod 10 can be quickly pulled out from the first insertion hole 6.

[0033] The limiting frame 8 is provided with a limiting mechanism inside. The limiting mechanism includes a first limiting hole 14, a second limiting hole 15, and a pull rod 17. The first limiting hole 14 and the second limiting hole 15 are respectively opened on the outer surface of the slider 9. The two limiting holes correspond to the limiting and releasing states of the slider 9 and the insertion rod 10, respectively.

[0034] The pull rod 17 passes through the limiting frame 8 and extends into the interior of the first limiting hole 14. The pull rod 17 is slidably connected to the limiting frame 8 and the first limiting hole 14. One end of the pull rod 17 is fixedly connected to a pull plate 16, which makes it convenient for the operator to pull the pull rod 17, making the operation convenient.

[0035] A second spring 18 is sleeved on the outer surface of the pull rod 17. The two ends of the second spring 18 are fixedly connected to the limiting frame 8 and the pull plate 16, respectively. Figure 3 The second spring 18 is in its natural state. When the user releases the second spring 18, its elastic restoring force can drive the pull rod 17 to automatically insert into the limiting hole.

[0036] A buffer mechanism is provided below the ball valve body 1. The buffer mechanism includes a connecting bucket 19, which is fixedly connected to the ball valve body 1. A transmission rod 21 is fixedly connected to the bottom surface of the connecting bucket 19. The connecting bucket 19 can stably transmit the vibration force of the ball valve body 1 to the transmission rod 21.

[0037] A buffer cylinder 20 is slidably connected to the outer surface of the transmission rod 21, and a damper 22 is fixedly connected to the bottom surface of the transmission rod 21. The bottom end of the damper 22 is fixedly connected to the inner bottom wall of the buffer cylinder 20, and the buffer cylinder 20 provides a guiding and mating space for the transmission rod 21 and the damper 22.

[0038] A mounting plate 24 is fixedly connected to the bottom end of the buffer cylinder 20. The mounting plate 24 facilitates the fixation of the device. A buffer spring 23 is sleeved on the outer surface of the damper 22. The two ends of the buffer spring 23 are fixedly connected to the transmission rod 21 and the inner bottom wall of the buffer cylinder 20, respectively. The damper 22 and the buffer spring 23 work together to weaken the transmission of vibration energy and prevent the vibration force from acting directly on the connection between the ball valve body 1 and the pipeline, thereby reducing the risk of loose connection.

[0039] Working principle: When the device is in a static or normal vibration condition, the first spring 13 in the anti-rotation mechanism is in a stretched state, and the plug 10 connected to the bottom surface of the slider 9 is inserted into the first plug hole 6 on the surface of the mating table 5. By engaging the plug 10 with the first plug hole 6, the turntable 3 is restricted from rotating on its own, thereby preventing the ball valve opening and closing rod 2 from shifting due to vibration, and achieving the anti-rotation effect of the ball valve opening and closing component.

[0040] When the ball valve needs to be opened or closed, pull the pull plate 16 outward, causing the pull rod 17 to slide along the inner wall of the limiting frame 8 and disengage from the first limiting hole 14 on the surface of the slider 9. At the same time, the second spring 18 is stretched, and the first spring 13 is elastically reset, pulling the slider 9 upward so that the insertion rod 10 disengages from the first insertion hole 6. Release the pull plate 16, and the second spring 18 resets, causing the pull rod 17 to insert into the second limiting hole 15 on the surface of the slider 9 to position the slider 9. Then, rotate the handle 4 to drive the turntable 3 and the ball valve opening / closing rod 2 to rotate, thereby opening and closing the ball valve.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A ball valve with anti-vibration function, comprising a ball valve body (1), characterized in that: The inner wall of the ball valve body (1) is rotatably connected to a ball valve opening and closing rod (2), the outer surface of the ball valve opening and closing rod (2) is fixedly connected to a turntable (3), the outer surface of the turntable (3) is fixedly connected to a handle (4), the outer surface of the ball valve body (1) is fixedly connected to a mating platform (5), and the upper surface of the mating platform (5) is provided with a first insertion hole (6) and a second insertion hole (7). The turntable (3) is provided with an anti-rotation mechanism. The anti-rotation mechanism includes a limiting frame (8). The bottom surface of the limiting frame (8) is fixedly connected to the upper surface of the turntable (3). A slider (9) is slidably connected to the inner wall of the limiting frame (8). The outer surface of the slider (9) is slidably connected to the turntable (3). A plug rod (10) is fixedly connected to the bottom surface of the slider (9). The bottom end of the plug rod (10) is inserted into the first plug hole (6) and slidably connected to the first plug hole (6). The limiting frame (8) is provided with a limiting mechanism inside, the limiting mechanism including a first limiting hole (14) and a second limiting hole (15) and a pull rod (17); A buffer mechanism is provided below the ball valve body (1).

2. A ball valve with anti-vibration function according to claim 1, characterized in that, A pressure rod (11) is fixedly connected to the upper surface of the slider (9), the outer surface of the pressure rod (11) is slidably connected to the limiting frame (8), and a pressure plate (12) is fixedly connected to the top of the pressure rod (11).

3. A ball valve with anti-vibration function according to claim 2, characterized in that, The pressure rod (11) is fitted with a first spring (13), and the two ends of the first spring (13) are fixedly connected to the inner top wall of the limiting frame (8) and the upper surface of the slider (9), respectively.

4. A ball valve with anti-vibration function according to claim 1, characterized in that, The first limiting hole (14) and the second limiting hole (15) are respectively opened on the outer surface of the slider (9). The pull rod (17) passes through the limiting frame (8) and extends into the interior of the first limiting hole (14). The pull rod (17) is slidably connected to the limiting frame (8) and the first limiting hole (14). One end of the pull rod (17) is fixedly connected to a pull plate (16).

5. A ball valve with anti-vibration function according to claim 4, characterized in that, The outer surface of the pull rod (17) is fitted with a second spring (18), and the two ends of the second spring (18) are fixedly connected to the limiting frame (8) and the pull plate (16) respectively.

6. A ball valve with anti-vibration function according to claim 1, characterized in that, The buffer mechanism includes a connecting bucket (19), which is fixedly connected to the ball valve body (1). A transmission rod (21) is fixedly connected to the bottom surface of the connecting bucket (19). A buffer cylinder (20) is slidably connected to the outer surface of the transmission rod (21). A damper (22) is fixedly connected to the bottom surface of the transmission rod (21). The bottom end of the damper (22) is fixedly connected to the inner bottom wall of the buffer cylinder (20). A mounting plate (24) is fixedly connected to the bottom end of the buffer cylinder (20).

7. A ball valve with anti-vibration function according to claim 6, characterized in that, The outer surface of the damper (22) is fitted with a buffer spring (23), and the two ends of the buffer spring (23) are fixedly connected to the transmission rod (21) and the inner bottom wall of the buffer cylinder (20), respectively.

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