Interlayer butterfly valve

Abstract

The utility model belongs to the field of butterfly valves, and particularly relates to an interlayer butterfly valve which comprises a valve body, a valve seat is arranged on the valve body, the top of the valve seat is in contact with a driving portion, an output shaft is arranged on the driving portion, the tail end of the output shaft is fixedly connected with a square block, a valve rod is arranged in the valve body, and the valve rod extends into the valve seat. According to the butterfly valve, the clamping block is arranged at the tail end of the output end of the driving component of the butterfly valve and clamped with the valve rod, then the annular supporting seat is arranged on the valve seat, the positioning rod at the bottom of the driving component can be inserted into the supporting seat, and then the inner threaded sleeve on the outer side of the supporting seat is screwed, so that the locking pin can move transversely; in this way, the driving part can be quickly installed and fixed, simplicity and convenience are achieved, similarly, when the inner threaded sleeve is reversely rotated, the locking pin can reset under the action of the spring and is separated from the positioning rod, and therefore the driving part can be detached, and operation is also easy.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, specifically an interlayer butterfly valve. Background Technology

[0002] Interlayer butterfly valves typically consist of a valve body, valve plate, valve stem, and seals. The valve plate rotates within the valve body, and the flow rate of the medium is adjusted by controlling the rotation angle of the valve plate. The seals provide a seal between the valve plate and the valve body, ensuring the valve's sealing performance. Furthermore, for convenient online opening and closing, electrically driven butterfly valves are also available.

[0003] A search revealed a utility model patent with patent authorization announcement number CN215293639U, which discloses a butterfly valve mechanism with a multi-layer inner tube. The mechanism includes a butterfly valve main pipe with a valve orifice for fluid flow. Main flange rings are located at both ends of the main pipe. A clamping pipe is fixed to both ends of the valve orifice, and a secondary flange ring is fixed to one end of each clamping pipe. A butterfly valve assembly is located between the clamping pipes. The butterfly valve assembly includes a sealing ring.

[0004] In the current electric butterfly valve, the drive component at the top is usually installed using a flange and multiple bolts, which is inconvenient not only for installation and fixing, but also for disassembly and maintenance later. Utility Model Content

[0005] The purpose of this utility model is to provide an interlayer butterfly valve that solves the problem of inconvenient driving, installation and fixing of existing electric butterfly valves.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an interlayer butterfly valve, comprising a valve body, a valve seat on the valve body, a drive unit on the top of the valve seat, an output shaft on the drive unit, a block fixedly connected to the end of the output shaft, a valve stem inside the valve body extending into the valve seat, the top of the valve stem engaging with the block, a support seat fixedly connected to the upper outer side of the valve seat, the support seat engaging with the drive unit, an internal threaded sleeve threadedly connected to the outer side of the support seat, a positioning rod fixedly connected to the bottom of the drive unit, the positioning rod being inserted into the support seat, a locking pin slidably connected inside the support seat, the locking pin penetrating the support seat, one end of the locking pin abutting against the internal threaded sleeve, the other end of the locking pin being inserted into the positioning rod, and a locking mechanism on the valve seat.

[0007] Preferably, a guide sleeve is fixedly connected to the upper outer side of the support base, a guide rod is slidably connected to the inner side of the guide sleeve, and a connecting block is fixedly connected to the end of the guide rod, with the connecting block being fixedly connected to the locking pin. The guide sleeve and guide rod provide guidance for the lateral movement of the locking pin.

[0008] Preferably, a spring is provided on the inner side of the guide sleeve. One end of the spring is fixedly connected to the guide rod, and the other end of the spring is fixedly connected to the inner surface of the guide sleeve. By providing the spring, the elastic force can be applied to the locking pin through the guide rod and the connecting block.

[0009] Preferably, the locking mechanism includes a hollow shell fixedly connected to the valve seat. An inclined block is slidably connected inside the hollow shell. A locking block is fixedly connected to the upper end of the inclined block. The locking block penetrates the hollow shell and is slidably connected to it. The locking block engages with an internal threaded sleeve. A sliding rod is slidably connected to the top of the hollow shell and penetrates the hollow shell. A ball head is fixedly connected to one end of the sliding rod, and the ball head abuts against the inclined block. A pressing block is fixedly connected to the other end of the sliding rod. The locking mechanism prevents the internal threaded sleeve from loosening, thus ensuring the stability of the locking pin and further guaranteeing the stability of the drive unit installation.

[0010] Preferably, the outer ring wall of the internal threaded sleeve has multiple slots arranged in a circular array, and the locking block is located within the slots. The arrangement of multiple circularly arrayed slots facilitates the engagement of the locking block after the internal threaded sleeve rotates.

[0011] Preferably, the bottom of the inclined block is provided with ball bearings, and the ball bearings are in contact with the inner surface of the hollow shell. The ball bearings allow for monitoring the relative friction between the inclined block and the hollow shell.

[0012] Preferably, a guide block is fixedly connected to the inner wall of the hollow shell, and the guide block is slidably connected to the inclined block. A second spring is provided inside the inclined block, one end of which is fixedly connected to the guide block, and the other end of which is fixedly connected to the inner surface of the inclined block. The guide block and the second spring provide elastic support and guide movement for the inclined block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model sets a locking block at the output end of the drive component of the butterfly valve, which engages with the valve stem. Then, an annular support seat is set on the valve seat. The positioning rod at the bottom of the drive component can be inserted into the support seat. Then, by screwing the internal threaded sleeve on the outside of the support seat, the locking pin can be moved laterally and inserted into the positioning rod. This completes the quick installation and fixing of the drive unit, which is simple and convenient. Similarly, by reversing the internal threaded sleeve, the locking pin will be reset by the action of the spring and separate from the positioning rod, so that the drive unit can be disassembled. The operation is also simple.

[0015] 2. This utility model provides a locking mechanism on the valve seat and a ring of grooves arranged in an array on the outer wall of the internal threaded sleeve. The locking block on the locking mechanism will be engaged in the groove under the action of the spring, thus locking the internal threaded sleeve, ensuring the stability of the locking pin, and further ensuring the stability of the drive unit installation. Attached Figure Description

[0016] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0017] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0018] Figure 3 This utility model Figure 1 A partial structural front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0020] Figure 5 This utility model Figure 3 Enlarged view of the locking mechanism.

[0021] In the diagram: 1. Valve body; 2. Valve seat; 3. Drive unit; 4. Output shaft; 5. Block; 6. Valve stem; 7. Support base; 8. Internal threaded sleeve; 9. Locking mechanism; 10. Positioning rod; 11. Locking pin; 12. Connecting block; 13. Guide sleeve; 14. Guide rod; 15. Spring 1; 91. Hollow shell; 92. Inclined block; 93. Locking block; 94. Guide block; 95. Spring 2; 96. Ball bearing; 97. Slide rod; 98. Ball head; 99. Pressing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3An interlayer butterfly valve includes a valve body 1, a valve seat 2 on the valve body 1, a drive unit 3 on the top of the valve seat 2, an output shaft 4 on the drive unit 3, a block 5 fixedly connected to the end of the output shaft 4, a valve stem 6 inside the valve body 1 extending into the valve seat 2, the top of the valve stem 6 engaging with the block 5, a support seat 7 fixedly connected to the upper outer side of the valve seat 2, the support seat 7 contacting the drive unit 3, an internal threaded sleeve 8 threadedly connected to the outer side of the support seat 7, a positioning rod 10 fixedly connected to the bottom of the drive unit 3, the positioning rod 10 inserting into the support seat 7, a locking pin 11 slidably connected inside the support seat 7, the locking pin 11 penetrating the support seat 7, one end of the locking pin 11 abutting against the internal threaded sleeve 8, and the other end of the locking pin 11 inserting into the positioning rod 10.

[0024] Please see Figure 4 A guide sleeve 13 is fixedly connected to the upper outer side of the support base 7. A guide rod 14 is slidably connected to the inner side of the guide sleeve 13. A connecting block 12 is fixedly connected to the end of the guide rod 14, and the connecting block 12 is fixedly connected to the locking pin 11. The guide sleeve 13 and the guide rod 14 guide the lateral movement of the locking pin 11. A spring 15 is provided on the inner side of the guide sleeve 13. One end of the spring 15 is fixedly connected to the guide rod 14, and the other end of the spring 15 is fixedly connected to the inner surface of the guide sleeve 13. The spring 15 allows the elastic force to be applied to the locking pin 11 through the guide rod 14 and the connecting block 12.

[0025] Please see Figures 2-5A locking mechanism 9 is provided on the valve seat 2. The locking mechanism 9 has the function of preventing the internal threaded sleeve 8 from loosening, thereby ensuring the stability of the locking pin 11 and further ensuring the stability of the drive part 3 installation. The locking mechanism 9 includes a hollow shell 91 fixedly connected to the valve seat 2. An inclined block 92 is slidably connected inside the hollow shell 91. A locking block 93 is fixedly connected to the upper end of the inclined block 92. The locking block 93 passes through the hollow shell 91 and is slidably connected to the hollow shell 91. The locking block 93 is engaged with the internal threaded sleeve 8. The outer ring wall of the internal threaded sleeve 8 has multiple slots, and the multiple slots are distributed in a ring array. The locking block 93 is located in the slot. The arrangement of multiple ring-shaped slots facilitates the engagement of the locking block 93 after the internal threaded sleeve 8 rotates. A sliding rod 97 is slidably connected to the top of the hollow shell 91, and the sliding rod 97 extends through the hollow shell 91. One end of the sliding rod 97 is fixedly connected to a ball head 98, which abuts against the inclined block 92. The other end of the sliding rod 97 is fixedly connected to a pressing block 99. A ball bearing 96 is provided at the bottom of the inclined block 92, and the ball bearing 96 contacts the inner surface of the hollow shell 91. The ball bearing 96 allows for monitoring the relative friction between the inclined block 92 and the hollow shell 91. A guide block 94 is fixedly connected to the inner wall of the hollow shell 91, and the guide block 94 is slidably connected to the inclined block 92. A second spring 95 is provided inside the inclined block 92, with one end of the second spring 95 fixedly connected to the guide block 94 and the other end fixedly connected to the inner surface of the inclined block 92. The guide block 94 and spring 95 provide elastic support and guide movement for the inclined block 92.

[0026] The specific implementation process of this utility model is as follows: In use, firstly, align the block 5 on the output shaft 4 of the drive unit 3 with the valve stem 6. Then, place the drive unit 3 on the valve seat 2, and make the block 5 engage with the valve stem 6. The positioning rod 10 on the drive unit 3 will be inserted into the support seat 7. Then, push the slide rod 97 by pressing the pressing block 99, so that the ball head 98 at the end of the slide rod 97 applies a squeezing force to the inclined block 92, causing it to move laterally, and driving the locking block 93 to move laterally. At this time, the locking block 93 disengages from the groove on the internal threaded sleeve 8, thereby releasing the internal threaded sleeve. Restricting the internal threaded sleeve 8, the internal threaded sleeve 8 is then rotated. The internal threaded sleeve 8 can move upward through the thread between it and the support seat 7. During its upward movement, a lateral thrust is applied to the locking pin 11, causing the locking pin 11 to be inserted laterally into the positioning rod 10. This completes the installation of the drive unit 3. Finally, the pressing block 99 is released, and the inclined block 92 will be reset under the action of the spring 95, and will also drive the locking block 93 to reset, thereby re-locking and fixing the internal threaded sleeve 8, ensuring the stability of the locking pin 11, and further ensuring the stability of the installation of the drive unit 3.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An interlayer butterfly valve, comprising a valve body (1), characterized in that: A valve seat (2) is provided on the valve body (1). The top of the valve seat (2) contacts a drive unit (3). An output shaft (4) is provided on the drive unit (3). A block (5) is fixedly connected to the end of the output shaft (4). A valve stem (6) is provided inside the valve body (1), and the valve stem (6) extends into the valve seat (2). The top of the valve stem (6) is engaged with the block (5). A support seat (7) is fixedly connected to the upper outer side of the valve seat (2), and the support seat (7) contacts the drive unit (3). The outer side of the support (7) is connected to an internal threaded sleeve (8) by a thread. The bottom of the drive part (3) is fixedly connected to a positioning rod (10). The positioning rod (10) is inserted into the support (7). The support (7) is slidably connected to a locking pin (11), and the locking pin (11) is set through the support (7). One end of the locking pin (11) abuts against the internal threaded sleeve (8), and the other end of the locking pin (11) is inserted into the positioning rod (10). The valve seat (2) is provided with a locking mechanism (9).

2. The interlayer butterfly valve according to claim 1, characterized in that: The upper outer side of the support base (7) is fixedly connected to a guide sleeve (13), and the inner side of the guide sleeve (13) is slidably connected to a guide rod (14). The end of the guide rod (14) is fixedly connected to a connecting block (12), and the connecting block (12) is fixedly connected to a locking pin (11).

3. The interlayer butterfly valve according to claim 2, characterized in that: A spring (15) is provided on the inner side of the guide sleeve (13). One end of the spring (15) is fixedly connected to the guide rod (14), and the other end of the spring (15) is fixedly connected to the inner surface of the guide sleeve (13).

4. The interlayer butterfly valve according to claim 1, characterized in that: The locking mechanism (9) includes a hollow shell (91) fixedly connected to the valve seat (2). An inclined block (92) is slidably connected inside the hollow shell (91). A locking block (93) is fixedly connected to the upper end of the inclined block (92). The locking block (93) passes through the hollow shell (91) and is slidably connected to the hollow shell (91). The locking block (93) is engaged with the internal threaded sleeve (8). A sliding rod (97) is slidably connected to the top of the hollow shell (91). The sliding rod (97) passes through the hollow shell (91). A ball head (98) is fixedly connected to one end of the sliding rod (97). The ball head (98) abuts against the inclined block (92). A pressing block (99) is fixedly connected to the other end of the sliding rod (97).

5. An interlayer butterfly valve according to claim 4, characterized in that: The outer ring wall of the internal threaded sleeve (8) has multiple slots, and the multiple slots are arranged in a ring array. The locking block (93) is located in the slot.

6. The interlayer butterfly valve according to claim 4, characterized in that: The bottom of the inclined block (92) is provided with a ball (96), and the ball (96) is in contact with the inner surface of the hollow shell (91).

7. An interlayer butterfly valve according to claim 4, characterized in that: The hollow shell (91) has a guide block (94) fixedly connected to its inner wall. The guide block (94) is slidably connected to the inclined block (92). The inclined block (92) has a second spring (95) inside. One end of the second spring (95) is fixedly connected to the guide block (94), and the other end of the second spring (95) is fixedly connected to the inner surface of the inclined block (92).

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