Butterfly type double-clack check valve
Through the design of the bracket and clamp structure, the problem of inconvenient installation of the butterfly double-flap check valve is solved, and convenient installation and stable fixation are achieved to prevent fluid leakage.
Patent Information
- Application Number
- CN202422643566.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The butterfly double-flap check valve needs to be held up by hand to align with the pipes during installation, resulting in inconvenient installation and difficult operation.
A butterfly double-flap check valve is designed, including a bracket, a bidirectional screw and a clamp structure. The clamp is clamped with the pipe by rotating the knob. The bracket is fixed to the pipe to support the check valve body, and prevent the suspension from shaking through the sleeve and support plate structure to provide stable support.
The butterfly double-flap check valve is easily installed and stable fixing, avoiding alignment difficulties caused by hand lifting, improving installation efficiency and preventing fluid leakage.
Smart Images
Figure CN223191070U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of check valves, in particular to a butterfly-type double-flap check valve. Background Art
[0002] A check valve is a valve with a circular disc as its opening and closing element. It relies on its own weight and the pressure of the medium to produce a movement to block the backflow of the medium. It is an automatic valve and is also called a non-return valve, one-way valve, return valve, or isolation valve. A butterfly double-flap check valve is one of the most common check valves. During installation, the installer needs to manually lift the butterfly double-flap check valve to align it with the pipeline and install it. During lifting, the hand is suspended in the air and easily shakes, making it difficult to align the butterfly double-flap check valve with the pipeline. Furthermore, installation operations (such as tightening bolts) cannot be performed with one hand. Therefore, a butterfly double-flap check valve is proposed to facilitate installation and improve installation efficiency. Utility Model Content
[0003] In view of the problems in the prior art, the utility model provides a butterfly-type double-flap check valve.
[0004] The cam is secured to the upper edge of the cam face, and the cam face has two engage teeth to engage with the engage teeth of the control wheel, the engage teeth of the control wheel being engaged with the control wheel.
[0005] By adopting the above technical solution, the bracket is held and moved so that the pipe is between the two clamping blocks, and then the knob is rotated. The knob drives the two-way screw to rotate, and the two clamping blocks move toward the pipe at the same time. The two clamping blocks clamp the pipe, making it convenient to fix the bracket on the pipe. The bracket can support the check valve body, and there is no need to lift the check valve body with hands, which is conducive to aligning the check valve body with the pipe, and thus freeing both hands to perform the installation operation of the pipe and the check valve body. After installation, loosen the connecting bolts and rotate the knob in the opposite direction to facilitate the removal of the bracket together with the clamping blocks.
[0006] Specifically, the support member includes a sleeve, a support plate, a limiting bolt and a sleeve. There are two sleeves and two support rods. The top ends of the two sleeves are connected to the clamp seat. Support rods are provided in the two sleeves. The bottom ends of the two support rods are sleeved. Screw holes that are compatible with the limiting bolts are opened on the two sleeves and sleeves, and the bottom ends of the two sleeves are connected to the support plate.
[0007] By adopting the above technical solution, the limit bolts on the two sleeves are loosened, the two sleeves are pulled out, and the two limit bolts are tightened after the bottom end of the support plate contacts the ground or the equipment below the check valve body. The support plate, sleeve, support rod and casing can support the clamp seat to prevent the pipeline from sagging or even fluid leakage in the pipeline due to the suspension and shaking of the check valve body.
[0008] Specifically, an anti-slip pad is fixed to the bottom end of the support plate.
[0009] By adopting the above technical solution and providing the anti-slip pad, the stability of the support plate can be improved.
[0010] Specifically, a first protective pad is fixed in the clamping seat.
[0011] By adopting the above technical solution, the provision of the first protective pad can protect the check valve body.
[0012] Specifically, second protective pads are fixed to the facing side walls of the two clamping blocks.
[0013] By adopting the above technical solution and setting up the second protective pad, the pipeline can be protected.
[0014] Specifically, a handle is fixed on the bracket, and an anti-slip cover is fixed on the handle.
[0015] By adopting the above technical solution, the arrangement of the handle and the anti-slip cover makes it convenient to take and put the bracket.
[0016] Beneficial effects of the utility model:
[0017] (1) The butterfly-type double-flap check valve described in the present invention is a valve that is held by hand and moved so that the pipe is placed between the two clamping blocks and then the knob is rotated. The knob drives the two-way screw to rotate, and the two clamping blocks move toward the pipe at the same time. The two clamping blocks clamp the pipe, making it convenient to fix the bracket on the pipe. The bracket can support the check valve body, and there is no need to lift the check valve body with hands, which is conducive to aligning the check valve body with the pipe, thereby freeing both hands to perform the installation operation of the pipe and the check valve body. After installation, loosen the connecting bolts and rotate the knob in the opposite direction to facilitate the removal of the bracket together with the clamping blocks.
[0018] (2) The butterfly-type double-flap check valve described in the present invention is to loosen the limit bolts on the two sleeves, pull out the two sleeves, and tighten the two limit bolts after the bottom end of the anti-slip pad contacts the ground or the equipment under the check valve body. The support plate, sleeve, support rod and sleeve can support the clamp seat to prevent the pipeline from sagging or even fluid leakage in the pipeline due to the suspension and shaking of the check valve body. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 It is a structural diagram of the utility model;
[0021] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;
[0022] Figure 3 For the utility model Figure 1 A magnified view of the structure at B in the middle.
[0023] In the figure: 1. Check valve body; 2. First protective pad; 3. Clamp seat; 4. Locking bolt; 5. Clamp block; 6. Bracket; 7. Anti-slip sleeve; 8. Handle; 9. Connecting bolt; 10. Sleeve; 11. Anti-slip pad; 12. Support plate; 13. Support member; 14. Two-way screw; 15. Vertical rod; 16. Second protective pad; 17. Knob; 18. Limit bolt; 19. Support rod; 20. Sleeve. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] In order to facilitate installation, as an embodiment of the present invention, Figure 1 、 Figure 2The cam 6 of the embodiment of the present invention is a kind of butterfly type double-flap check valve of the present invention, comprises a check valve body 1, a bracket 6 and a connecting bolt 9 are provided on one side of the check valve body 1, a two-way screw rod 14 and two clamping blocks 5 are provided in the bracket 6, a clamping seat 3 is sleeved on the check valve body 1, a locking bolt 4 is provided on the top of the check valve body 1, the clamping seat 3 is provided with two screw holes adapted for the locking bolt 4, the bottom end of the clamping seat 3 is provided with a support member 13, one end of the clamping seat 3 passes through the bracket 6, the clamping seat 3 and the bracket 6 are provided with screw holes adapted for the connecting bolt 9, the two clamping blocks 5 are provided with screw holes adapted for the two-way screw rod 14, the bottom end of the two-way screw rod 14 is rotatably connected to the bracket 6, the top end of the bracket 6 is provided with a through hole for the two-way screw rod 14 to pass through, the top end of the two-way screw rod 14 is welded and fixed with a knob 17, a vertical rod 15 is welded and fixed in the bracket 6, and the two clamping blocks 5 are provided with a through hole adapted for the vertical rod 15.
[0026] When in use, hold the bracket 6 and move it so that the pipe is between the two clamping blocks 5, then rotate the knob 17. The knob 17 drives the bidirectional screw rod 14 to rotate, and the two clamping blocks 5 move toward the pipe at the same time. The two clamping blocks 5 clamp the pipe, making it convenient to fix the bracket 6 on the pipe. The bracket 6 can support the check valve body 1, and there is no need to lift the check valve body 1 with hands, which is conducive to aligning the check valve body 1 with the pipe, and thus freeing both hands to perform the installation operation of the pipe and the check valve body 1. After installation, loosen the connecting bolt 9 and rotate the knob 17 in the opposite direction to facilitate the removal of the bracket 6 together with the clamping blocks 5.
[0027] In order to improve the stability of the check valve body 1, for example, Figure 1 、 Figure 3 As shown, the support member 13 includes a sleeve 10, a support plate 12, a limit bolt 18 and a sleeve 20. There are two sleeves 20 and two support rods 19. The top ends of the two sleeves 20 are welded to the clamp seat 3. Support rods 19 are provided in the two sleeves 20. The bottom ends of the two support rods 19 are sleeved with sleeves 10. Screw holes that are compatible with the limit bolts 18 are opened on the two sleeves 10 and the sleeves 20. The bottom ends of the two sleeves 10 are welded to the support plate 12.
[0028] When in use, loosen the limit bolts 18 on the two sleeves 10, pull out the two sleeves 10, tighten the two limit bolts 18 after the bottom end of the support plate 12 contacts the ground or the equipment below the check valve body 1, and the support plate 12, sleeve 10, support rod 19 and sleeve 20 can support the clamp seat 3 to prevent the pipeline from sagging or even fluid leakage in the pipeline due to the suspension and shaking of the check valve body 1.
[0029] In order to improve the stability of the support plate 12, for example, Figure 1 As shown, the bottom end of the support plate 12 is fixed with an anti-slip pad 11 by adhesive.
[0030] In order to protect the check valve body 1, for example, Figure 1 As shown, the first protective pad 2 is fixed in the clamping seat 3 by adhesive.
[0031] In order to protect the pipeline, for example, Figure 2 As shown, the second protective pads 16 are fixed to the facing side walls of the two clamping blocks 5 by adhesive.
[0032] In order to facilitate the placement and removal of the bracket 6, for example, Figure 1 As shown, a handle 8 is fixed to the bracket 6 by adhesive, and an anti-slip cover 7 is fixed to the handle 8 by adhesive.
[0033] When the utility model is in use, the bracket 6 is held and moved, so that the pipeline is between the two clamping blocks 5, and then the knob 17 is rotated. The knob 17 drives the bidirectional screw rod 14 to rotate, and the two clamping blocks 5 move toward the pipeline at the same time. The two second protective pads 16 are close to the pipeline, which makes it convenient to fix the bracket 6 on the pipeline. The bracket 6 can support the check valve body 1, and there is no need to lift the check valve body 1 with hands, which is conducive to aligning the check valve body 1 with the pipeline, thereby freeing up both hands to perform the installation operation of the pipeline and the check valve body 1;
[0034] Loosen the limit bolts 18 on the two sleeves 10, pull out the two sleeves 10, and tighten the two limit bolts 18 after the bottom end of the anti-slip pad 11 contacts the ground or the equipment below the check valve body 1. The support plate 12, sleeves 10, support rods 19 and sleeves 20 can support the clamping seat 3 to prevent the pipeline from sagging or even fluid leakage in the pipeline due to the suspension or shaking of the check valve body 1.
[0035] After installation, loosen the connecting bolt 9 and rotate the knob 17 in the opposite direction, so that the two clamping blocks 5 move away from the pipeline, making it easy to remove the bracket 6 together with the clamping blocks 5.
[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions in the specification are only for the purpose of illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and such changes and improvements fall within the scope of protection claimed by the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents. Any matters not described in detail in the present invention belong to the prior art known to those skilled in the art.
Claims
1. A butterfly type double disc check valve, characterized in that: The invention comprises a check valve body (1), wherein a bracket (6) and a connecting bolt (9) are provided on one side of the check valve body (1), a bidirectional screw rod (14) and two clamping blocks (5) are provided in the bracket (6), a clamping seat (3) is sleeved on the check valve body (1), a locking bolt (4) is provided above the check valve body (1), two screw holes adapted to the locking bolt (4) are provided on the clamping seat (3), a support member (13) is provided at the bottom end of the clamping seat (3), one end of the clamping seat (3) passes through the bracket (6), and the clamping seat (3) and the bracket (6) are provided with screw holes adapted to the connecting bolts (9), and the two clamping blocks (5) are provided with screw holes adapted to the bidirectional screw rod (14). The bottom end of the bidirectional screw rod (14) is rotatably connected to the bracket (6), and the top end of the bracket (6) is provided with a through hole for the bidirectional screw rod (14) to pass through. The top end of the bidirectional screw rod (14) is fixed with a knob (17), and a vertical rod (15) is fixed inside the bracket (6). The two clamping blocks (5) are provided with through holes adapted to the vertical rod (15).
2. A butterfly type double disc check valve according to claim 1, characterized in that: The support member (13) comprises a sleeve (10), a support plate (12), a limiting bolt (18) and a sleeve (20). Two sleeves (20) and two support rods (19) are provided. The top ends of the two sleeves (20) are connected to the clamping seat (3). The support rods (19) are provided in the two sleeves (20). The bottom ends of the two support rods (19) are sleeved with sleeves (10). The two sleeves (10) and the sleeves (20) are provided with screw holes adapted to the limiting bolts (18). The bottom ends of the two sleeves (10) are connected to the support plate (12).
3. A butterfly type double disc check valve according to claim 2, characterized in that: An anti-slip pad (11) is fixed to the bottom end of the support plate (12).
4. A butterfly type double disc check valve according to claim 1, characterized in that: A first protective pad (2) is fixed in the clamping seat (3).
5. The butterfly type double disc check valve according to claim 1, characterized in that: Second protective pads (16) are fixed to the facing side walls of the two clamping blocks (5).
6. The butterfly type double disc check valve according to claim 1, characterized in that: A handle (8) is fixed on the bracket (6), and an anti-slip sleeve (7) is fixed on the handle (8).