Valve with framework

Abstract

The utility model discloses a built-in framework type valve, which relates to the technical field of framework valves, and comprises a valve body, a gear box, a valve rod and a positioning part, the positioning part comprises a fastening sleeve ring, a plurality of driving grooves are arranged on the inner wall of a locking sleeve in a surrounding manner, and friction brake components are arranged in the driving grooves. A transmission assembly matched with the friction braking assembly is arranged at the end, away from the gear box, of the locking sleeve. Through the arrangement of the positioning component, after the valve rod is rotated and the adjustment of the built-in valve plate of the valve body is completed, the transmission assembly acts on the bidirectional screw rod in the friction braking assembly to rotate, so that the two nut seats oppositely slide from the thread structures in the rotation process of the bidirectional screw rod until the friction plate is attached to the surface of the fastening lantern ring; the fastening lantern ring is clamped through the friction plates on the two nut seats, the braking effect is achieved on the fastening lantern ring and the valve rod, then the stability of the valve rod after use is guaranteed, and a series of follow-up negative effects caused by error adjustment are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of skeleton valves, in particular to a self-contained skeleton valve. Background Art

[0002] The valve housing of the skeleton valve is generally built with a skeleton structure, which is used to enhance the rigidity of the valve during use, improve the valve's resistance to deformation, and has a strong nominal pressure.

[0003] However, the skeleton valve of the prior art does not have a good locking function. After the flow is adjusted by the valve stem, the valve plate in the valve is in a free state, and there is a possibility of misadjustment by non-staff, which leads to a series of subsequent adverse consequences and brings inconvenience to use. Utility Model Content

[0004] In order to solve the above technical problems, a self-contained skeleton valve is provided, which solves the problem that the skeleton valve in the existing technology does not have a good locking function. After the flow is adjusted by the valve stem, the valve plate in the valve is in a free state, and there is a possibility of misadjustment by non-staff, which leads to a series of subsequent adverse consequences and brings inconvenience to use.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a self-contained frame-type valve, comprising a valve body, a gear box arranged on the top of the valve body, and a valve stem rotatably arranged on one side of the gear box, and also comprising a positioning component for fastening the valve stem;

[0006] The positioning component includes a fastening collar that is tightly sleeved on the valve stem, a locking sleeve that is fixedly connected to the side wall of the gear box is sleeved on the outside of the fastening collar, a plurality of driving grooves are formed around the inner wall of the locking sleeve, a friction brake assembly is built into the driving groove, and a transmission assembly that cooperates with the friction brake assembly is provided on the end of the locking sleeve away from the gear box;

[0007] The friction brake assembly includes a bidirectional screw that is laterally rotated between the inner walls on both sides of the drive groove and two nut seats that are symmetrically threaded and connected to the bidirectional screw rod. Friction plates are slidably arranged on both sides of the fastening ring, and the two friction plates are fixedly connected to the two nut seats in a one-to-one correspondence.

[0008] Preferably, the transmission assembly includes a rotating ring rotatably arranged on one end of the locking sleeve away from the gear box, an internal gear is fixedly connected to the inner wall of the rotating ring, a transmission rod is fixed to one end of the bidirectional screw, the end of the transmission rod is rotated to pass through the locking sleeve and is tightly sleeved with an external gear, and the external gear is meshed with the internal gear.

[0009] Preferably, the stem of the valve stem is further provided with a sealing cover ring fixedly connected to the end of the rotating ring away from the locking sleeve, an air bag ring is fixed on the inner wall of the sealing cover ring, and an air injection component is provided on the outer wall of the sealing cover ring.

[0010] Preferably, the gas injection assembly includes an gas injection tube arranged on the outer wall of the sealing cover ring, one end of the gas injection tube is fixedly passed through the sealing cover ring and is connected to the inside of the airbag ring, and the other end of the gas injection tube is fixedly connected to a joint, and the joint has a built-in valve core.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] (1) Through the setting of the positioning component, after the valve stem is rotated and the adjustment of the built-in valve plate of the valve body is completed, the transmission component is used to cause the bidirectional screw in the friction brake component to rotate, so that the two nut seats slide toward each other by the threaded structure during the rotation of the bidirectional screw until the friction plate fits the surface of the fastening ring. In this way, the friction plates on the two nut seats are used to clamp the fastening ring, forming a braking effect on the fastening ring and the valve stem, thereby ensuring the stability of the valve stem after use and preventing a series of adverse consequences caused by misadjustment.

[0013] (2) By setting up the air injection assembly and the air bag ring, after the rotating ring completes the locking operation on the valve stem, the air injection assembly is used to fill the air bag ring with gas, causing the air bag ring to expand and fit tightly with the valve stem. In this way, the sealing ring cooperates with the air bag ring to effectively provide a closed space for the rotating ring and the locking sleeve, reducing the influence of dust and impurities on the meshing effect between the internal gear and the external gear and the thread transmission effect of the bidirectional screw on the nut seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the partial internal structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] The numbers in the figure are:

[0018] 1. Valve body; 2. Gearbox; 3. Valve stem; 4. Fastening collar; 5. Locking sleeve; 6. Drive groove; 7. Friction plate; 8. Bidirectional screw; 9. Nut seat; 10. Rotating ring; 11. Transmission rod; 12. External gear; 13. Internal gear; 14. Sealing ring; 15. Airbag ring; 16. Air injection pipe; 17. Connector. DETAILED DESCRIPTION

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0020] Reference Figure 1-3 As shown, a self-contained frame-type valve comprises a valve body 1, a gear box 2 arranged on the top of the valve body 1, and a valve stem 3 rotatably arranged on one side of the gear box 2;

[0021] When in use, the valve stem 3 is rotated, and the gear set built into the gear box 2 drives the valve plate in the valve body 1 to rotate, thereby opening the interior of the valve body 1;

[0022] In addition, according to the content of the relevant document in the prior art with announcement number CN217653257U and the name of a self-contained skeleton valve, the valve body 1, gear box 2 and valve stem 3 as a whole are conventional skeleton valves in the prior art. As a technical feature that has been well known to the public, this solution does not go into too much detail about its internal structure and usage principle. For details, please refer to the above document.

[0023] Further, refer to Figure 1-3 As shown, it is worth noting that it also includes a positioning component for fastening the valve stem 3;

[0024] The positioning component includes a fastening collar 4 that is fastened to the body of the valve stem 3. The outer portion of the fastening collar 4 is provided with a locking sleeve 5 that is fixedly connected to the side wall of the gear box 2. The inner wall of the locking sleeve 5 is surrounded by a plurality of driving grooves 6. The driving grooves 6 have built-in friction brake assemblies. The end of the locking sleeve 5 away from the gear box 2 is provided with a transmission assembly that cooperates with the friction brake assembly.

[0025] The friction brake assembly includes a bidirectional screw 8 that is laterally rotatably arranged between the inner walls of the two sides of the driving groove 6 and two nut seats 9 that are symmetrically threadedly connected to the rod of the bidirectional screw 8. Friction plates 7 are slidably arranged on both sides of the fastening collar 4. The two friction plates 7 are fixedly connected to the two nut seats 9 in a one-to-one correspondence.

[0026] By setting the positioning components, after the valve stem 3 is rotated and the adjustment of the built-in valve plate of the valve body 1 is completed, the transmission component is used to act on the bidirectional screw 8 in the friction brake assembly to rotate, so that the two nut seats 9 slide toward each other by the threaded structure during the rotation of the bidirectional screw 8 until the friction plate 7 fits the surface of the fastening ring 4. In this way, the friction plates 7 on the two nut seats 9 clamp the fastening ring 4, forming a braking effect on the fastening ring 4 and the valve stem 3, thereby ensuring the stability of the valve stem 3 after use and preventing a series of adverse consequences caused by incorrect adjustment.

[0027] Further, refer to Figure 3As shown, it is worth noting that the transmission assembly includes a rotating ring 10 rotatably arranged on the end of the locking sleeve 5 away from the gear box 2, and an internal gear 13 is fixedly connected to the inner wall of the rotating ring 10. A transmission rod 11 is fixed to one end of the bidirectional screw 8. The distal end of the transmission rod 11 rotates through the locking sleeve 5 and is tightly sleeved with an external gear 12, which meshes with the internal gear 13.

[0028] The simple knob is used to rotate the ring 10 , and the rotating ring 10 can make the internal gear 13 and the external gear 12 continuously meshed while rotating the internal gear 13 , and the transmission rod 11 provides rotational force for the bidirectional screw 8 .

[0029] Further, refer to Figure 2 and Figure 3 As shown, it is worth noting that a sealing cover ring 14 is sleeved on the stem of the valve stem 3 and fixedly connected to the end of the rotating ring 10 away from the locking sleeve 5. An air bag ring 15 is fixed on the inner wall of the sealing cover ring 14, and an air injection component is provided on the outer wall of the sealing cover ring 14.

[0030] By setting up the air injection assembly and the airbag ring 15, after the rotating ring 10 completes the locking operation on the valve stem 3, the air injection assembly is used to fill the airbag ring 15 with gas, causing the airbag ring 15 to expand and fit tightly with the valve stem 3. In this way, the sealing ring 14 cooperates with the airbag ring 15 to effectively provide a closed space for the rotating ring 10 and the locking sleeve 5, reducing the influence of dust and impurities on the meshing effect between the internal gear 13 and the external gear 12 and the threaded transmission effect of the bidirectional screw 8 on the nut seat 9.

[0031] Further, refer to Figure 3 As shown, it is worth noting that the gas injection assembly includes a gas injection tube 16 provided on the outer wall of the sealing cover ring 14. One end of the gas injection tube 16 is fixedly passed through the sealing cover ring 14 and communicated with the interior of the airbag ring 15. The other end of the gas injection tube 16 is fixedly connected to a joint 17, and the joint 17 has a built-in valve core.

[0032] Connect the connector 17 to a micro air pump, and use the micro air pump to continuously inject gas into the connector 17, so that the valve core opens under the air pressure, and then the gas smoothly flows into the airbag ring 15 through the air injection pipe 16, so that the airbag ring 15 is inflated;

[0033] Subsequently, it is only necessary to use a thimble to poke the valve core in the joint 17 to effectively open the inside of the joint 17, depressurize the inside of the airbag ring 15, and release the gas inside, so that the airbag ring 15 shrinks and separates from the rod of the valve stem 3, so as to avoid excessive wear between the rod of the valve stem 3 and the airbag ring 15 when the valve stem 3 rotates subsequently, thereby affecting the service life of the airbag ring 15.

[0034] 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 merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-supporting frame-type valve, comprising a valve body (1), a gear box (2) arranged on the top of the valve body (1), and a valve stem (3) rotatably arranged on one side of the gear box (2), characterized in that: Also includes a positioning component for fastening the valve stem (3); The positioning component includes a fastening collar (4) that is fastened to the body of the valve stem (3); the fastening collar (4) is provided with a locking sleeve (5) that is fixedly connected to the side wall of the gear box (2); a plurality of driving grooves (6) are formed around the inner wall of the locking sleeve (5); a friction brake assembly is built into the driving groove (6); and a transmission assembly that cooperates with the friction brake assembly is provided at one end of the locking sleeve (5) away from the gear box (2); The friction brake assembly comprises a bidirectional screw (8) that is laterally rotatably arranged between the inner walls on both sides of the driving groove (6) and two nut seats (9) that are symmetrically threadedly connected to the rod body of the bidirectional screw (8); friction plates (7) are slidably arranged on both sides of the fastening ring (4); and the two friction plates (7) are fixedly connected to the two nut seats (9) in a one-to-one correspondence.

2. A self-contained skeleton valve according to claim 1, characterized in that: The transmission assembly includes a rotating ring (10) rotatably arranged on one end of the locking sleeve (5) away from the gear box (2), an internal gear (13) is fixedly connected to the inner wall of the rotating ring (10), a transmission rod (11) is fixed to one end of the bidirectional screw (8), the distal end of the transmission rod (11) rotates out of the locking sleeve (5) and is tightly sleeved with an external gear (12), and the external gear (12) is meshed with the internal gear (13).

3. A self-contained skeleton valve according to claim 2, characterized in that: The valve stem (3) is also provided with a sealing cover ring (14) fixedly connected to one end of the rotating ring (10) away from the locking sleeve (5), an air bag ring (15) is fixed on the inner wall of the sealing cover ring (14), and an air injection component is provided on the outer wall of the sealing cover ring (14).

4. A self-contained skeleton valve according to claim 3, characterized in that: The gas injection assembly comprises a gas injection pipe (16) arranged on the outer wall of the sealing cover ring (14); one end of the gas injection pipe (16) is fixedly passed through the sealing cover ring (14) and is connected to the interior of the airbag ring (15); the other end of the gas injection pipe (16) is fixedly connected to a joint (17); and the joint (17) has a built-in valve core.

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