Butterfly valve with widened valve seat

Abstract

The utility model discloses a butterfly valve with a widened valve seat, which relates to the technical field of butterfly valve seats and comprises a valve seat body, a valve body is slidably connected to the outer side of the valve seat body, two corresponding first sliding grooves are formed in the valve body, two groups of corresponding first sliding blocks are fixedly connected to the outer side of the valve seat body, and the valve seat body is fixedly connected with the valve seat body. The first sliding block is slidably connected into the first sliding groove, a clamping groove is formed in the position, located on the outer side of the first sliding groove, in the valve body, two corresponding second sliding grooves are formed in the valve seat body, and a third sliding groove is formed in the position, located on one side of the second sliding grooves, in the valve seat body. The valve seat has the advantages that the first sliding groove, the first sliding block, the second sliding block, the third sliding block, the telescopic spring and the clamping groove are matched with one another, the valve seat body can be limited through the first sliding block and the first sliding groove when the valve seat body is placed into an inner cavity of a valve body, and therefore the situation that the threaded groove displaces due to vertical sliding is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valve seats, in particular to a butterfly valve with a widened valve seat. Background Art

[0002] A butterfly valve, also called a flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. A butterfly valve is a valve whose closing part is a disc that rotates around the valve axis to open and close. The valve seat in a butterfly valve refers to a detachable surface part inside the valve that is used to support the switch position and form a seal. Generally, the valve seat diameter is the maximum flow diameter of the valve. For example, the valve seat material is very wide, and all kinds of rubber, plastic, and metal materials can be used as valve seat materials.

[0003] During the installation of the valve seat and the butterfly valve body, the staff generally use bolts to fix the two together. However, when the valve body is placed into the inner cavity of the butterfly valve body, the valve seat is prone to vertically slide in the inner cavity of the butterfly valve body, causing the valve seat mounting hole to shift, making it inconvenient to align the mounting hole of the valve seat with the fixed hole of the butterfly valve body, increasing the installation difficulty for the staff. For this reason, we propose a butterfly valve with a widened valve seat. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a butterfly valve with a widened valve seat, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a butterfly valve with a widened valve seat, comprising a valve seat body, the outer side of the valve seat body is slidably connected to the valve body, the interior of the valve body is provided with two corresponding first slide grooves, the outer side of the valve seat body is fixedly connected to two groups of corresponding first sliders, the first slider is slidably connected to the interior of the first slide groove, a slot is provided inside the valve body and located on the outer side of the first slide groove, two corresponding second slide grooves are provided inside the valve seat body, a third slide groove is provided inside the valve seat body and located on one side of the second slide groove, the interior of the second slide groove is slidably connected to the second slider, the second slider is fixedly connected to one side of the second slider, and the third slider is slidably connected to the interior of the third slide groove.

[0006] Preferably, both ends of the valve seat body are fixedly connected with a first sealing gasket, and the outer side of the first sealing gasket is fixedly connected with two corresponding side sealing gaskets, and the side sealing gaskets cooperate with the first slider. Through the mutual cooperation of the first sealing gasket and the side sealing gasket, the sealing performance of the valve seat can be increased.

[0007] Preferably, the second slider cooperates with the slot, and the valve seat body can be initially fixed by the cooperation between the second slider and the slot, making it convenient for the fixing bolts to fix the valve seat body, thereby improving the convenience of installing the butterfly valve with a widened valve seat.

[0008] Preferably, a plurality of telescopic springs are arranged inside the third slide groove, one end of the telescopic spring is fixedly connected to the inner wall of the third slide groove, and the other end of the telescopic spring is fixedly connected to one side of the third slider, and the third slider and the second slider can be limited by the mutual cooperation of the third slide groove, the third slider and the telescopic spring, so that the second slider can be clamped with the inside of the clamping groove, thereby facilitating the initial fixing of the valve seat body to the inside of the valve body.

[0009] Preferably, the valve seat body is internally rotatably connected to a butterfly plate, the top of the valve body is fixedly connected to a transmission box, the transmission box is internally rotatably connected to a handwheel, the transmission box is internally rotatably connected to a connecting rod, one end of the connecting rod passes through the valve body and the valve seat body and is fixedly connected to the butterfly plate, and the normal operation of the butterfly valve with a widened valve seat can be guaranteed through the mutual cooperation of the transmission box, the handwheel, the butterfly plate and the connecting rod.

[0010] Preferably, two corresponding thread grooves are opened inside the valve seat body, and fixing bolts are arranged inside the valve body. The valve seat body is threadably fixed to the inside of the valve body by the fixing bolts. The valve body and the valve seat body can be further fixed by the mutual cooperation of the fixing bolts and the thread grooves.

[0011] Preferably, a fixing seat is fixedly connected to the bottom of the valve body, and first plug-in grooves are fixedly connected to both ends of the valve body.

[0012] The utility model provides a butterfly valve with a widened valve seat, which has the following beneficial effects:

[0013] 1. The butterfly valve with a widened valve seat can limit the valve seat body by the first slider and the first slide groove when the valve seat body is placed in the inner cavity of the valve body through the mutual cooperation of the first slide groove, the first slider, the second slide groove, the third slide groove, the second slider, the third slider, the telescopic spring and the slot, so as to prevent the vertical sliding from causing displacement of the thread groove. When moving to the installation position, the valve seat body can be initially fixed to the inside of the valve body through the mutual cooperation of the second slider and the slot, so as to facilitate the installation of the valve seat body inside the valve body, thereby improving the convenience of installing the valve seat body of the butterfly valve with a widened valve seat.

[0014] 2. The butterfly valve with a widened valve seat can improve the sealing of the valve seat body and avoid leakage through the mutual cooperation of the first sealing gasket, the side sealing gasket, the valve seat body and the first slider, thereby ensuring the use effect. The mutual cooperation of the threaded groove and the fixing bolts facilitates the fixation of the valve body and the valve seat body. Compared with the general butterfly valve with a widened valve seat, it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the interior of the valve seat of the utility model.

[0017] In the figure: 1. valve body; 2. valve seat body; 3. first slide groove; 4. first slider; 5. first sealing gasket; 6. side sealing gasket; 7. second slide groove; 8. third slide groove; 9. second slider; 10. third slider; 11. telescopic spring; 12. slot; 13. threaded slot; 14. first plug-in slot; 15. fixing bolt; 16. butterfly plate; 17. fixing seat; 18. transmission box; 19. handwheel. 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] See also Figure 1 to Figure 2 The utility model provides a technical solution: a butterfly valve with a widened valve seat, comprising a valve seat body 2, a valve body 1 is slidably connected to the outer side of the valve seat body 2, two corresponding first slide grooves 3 are provided inside the valve body 1, two groups of corresponding first sliders 4 are fixedly connected to the outer side of the valve seat body 2, the first slider 4 is slidably connected to the inside of the first slide groove 3, a card groove 12 is provided inside the valve body 1 and located on the outside of the first slide groove 3, two corresponding second slide grooves 7 are provided inside the valve seat body 2, a third slide groove 8 is provided inside the valve seat body 2 and located on one side of the second slide groove 7, a second slider 9 is slidably connected to the inside of the second slide groove 7, a third slider 10 is fixedly connected to one side of the second slider 9, and the third slider 10 is slidably connected to the inside of the third slide groove 8;

[0020] Both ends of the valve seat body 2 are fixedly connected with a first sealing gasket 5, and the outer side of the first sealing gasket 5 is fixedly connected with two corresponding side sealing gaskets 6, and the side sealing gaskets 6 cooperate with the first slider 4. Through the mutual cooperation of the first sealing gasket 5 and the side sealing gasket 6, the sealing performance of the valve seat can be increased;

[0021] The second slider 9 cooperates with the card slot 12. Through the cooperation between the second slider 9 and the card slot 12, the valve seat body 2 can be initially fixed, which makes it convenient for the fixing bolt 15 to fix the valve seat body 2, thereby improving the convenience of installing the butterfly valve with a widened valve seat. A plurality of telescopic springs 11 are arranged inside the third slide groove 8. One end of the telescopic spring 11 is fixedly connected to the inner wall of the third slide groove 8, and the other end of the telescopic spring 11 is fixedly connected to one side of the third slider 10. Through the cooperation between the third slide groove 8, the third slider 10 and the telescopic spring 11, the third slider 10 and the second slider 9 can be limited, so that the second slider 9 can be engaged with the inside of the card slot 12, thereby facilitating the initial fixing of the valve seat body 2 to the inside of the valve body 1.

[0022] The valve seat body 2 is internally rotatably connected with a butterfly plate 16, the top of the valve body 1 is fixedly connected with a transmission box 18, the transmission box 18 is internally rotatably connected with a hand wheel 19, the transmission box 18 is internally rotatably connected with a connecting rod, one end of the connecting rod penetrates the valve body 1 and the valve seat body 2 and is fixedly connected with the butterfly plate 16, and the normal operation of the butterfly valve with a widened valve seat can be ensured by the mutual cooperation of the transmission box 18, the hand wheel 19, the butterfly plate 16 and the connecting rod;

[0023] Two corresponding thread grooves 13 are provided inside the valve seat body 2, and a fixing bolt 15 is provided inside the valve body 1. The valve seat body 2 is threadedly fixed to the inside of the valve body 1 by the fixing bolt 15. The valve body 1 and the valve seat body 2 can be further fixed by the mutual cooperation of the fixing bolt 15 and the thread groove 13.

[0024] A fixing seat 17 is fixedly connected to the bottom of the valve body 1 , and first plug-in slots 14 are fixedly connected to both ends of the valve body 1 .

[0025] In summary, for the butterfly valve with a widened valve seat, when the valve seat body 2 is installed inside the valve body 1, the staff first inserts a group into the inside of the two first slide grooves 3, and then manually pushes the two second sliders 9 to slide into the inside of the second slide grooves 7, and then pushes the two third sliders 10 to slide into the inside of the third slide groove 8, and then contracts the telescopic spring 11, and at the same time pushes the valve seat body 2 to slide into the inside of the valve body 1, so that the two second sliders 9 slide into the inside of the first slide groove 3. When the valve seat body 2 slides to the installation position, the limit of the telescopic spring 11 is released, so that the telescopic spring 11 rebounds and pushes the third slider 10 and the second slider 9 to reset, so that the two second sliders 9 are clamped with the inside of the clamping groove 12, thereby preliminarily fixing the valve body 1 and the valve seat body 2, and then further fixing the valve body 1 and the valve seat body 2 by the mutual cooperation of the fixing bolts 15 and the threaded groove 13.

[0026] 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 butterfly valve with a widened valve seat, comprising a valve seat body (2), characterized in that: The outer side of the valve seat body (2) is slidably connected to a valve body (1), and two corresponding first slide grooves (3) are provided inside the valve body (1). Two groups of corresponding first sliders (4) are fixedly connected to the outer side of the valve seat body (2), and the first sliders (4) are slidably connected to the inside of the first slide groove (3). A clamping groove (12) is provided inside the valve body (1) and located on the outer side of the first slide groove (3). Two corresponding second slide grooves (7) are provided inside the valve seat body (2), and a third slide groove (8) is provided inside the valve seat body (2) and located on one side of the second slide groove (7). A second slider (9) is slidably connected to the inside of the second slide groove (7), and a third slider (10) is fixedly connected to one side of the second slider (9), and the third slider (10) is slidably connected to the inside of the third slide groove (8).

2. A butterfly valve with a widened valve seat according to claim 1, characterized in that: Both ends of the valve seat body (2) are fixedly connected to a first sealing gasket (5), and the outer side of the first sealing gasket (5) is fixedly connected to two corresponding side sealing gaskets (6), and the side sealing gaskets (6) cooperate with the first sliding block (4).

3. A butterfly valve with a widened valve seat according to claim 1, characterized in that: The second sliding block (9) cooperates with the clamping groove (12).

4. A butterfly valve with a widened valve seat according to claim 1, characterized in that: A plurality of telescopic springs (11) are arranged inside the third slide groove (8), one end of the telescopic spring (11) is fixedly connected to the inner wall of the third slide groove (8), and the other end of the telescopic spring (11) is fixedly connected to one side of the third sliding block (10).

5. The butterfly valve with a widened valve seat according to claim 1, characterized in that: The valve seat body (2) is internally rotatably connected to a butterfly plate (16), the top of the valve body (1) is fixedly connected to a transmission box (18), the transmission box (18) is internally rotatably connected to a hand wheel (19), the transmission box (18) is internally rotatably connected to a connecting rod, one end of the connecting rod passes through the valve body (1) and the valve seat body (2) and is fixedly connected to the butterfly plate (16).

6. The butterfly valve with a widened valve seat according to claim 1, characterized in that: The valve seat body (2) is provided with two corresponding thread grooves (13) inside, the valve body (1) is provided with fixing bolts (15) inside, and the valve seat body (2) is threadably fixed to the inside of the valve body (1) via the fixing bolts (15).

7. The butterfly valve with a widened valve seat according to claim 1, characterized in that: The bottom of the valve body (1) is fixedly connected to a fixing seat (17), and both ends of the valve body (1) are fixedly connected to first plug-in slots (14).

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