Anti-falling lever for main regulation of pressure regulator

Abstract

The anti-falling lever comprises a main adjusting lever body, a connecting mechanism and a lower valve deck, one end of the connecting mechanism is connected with the main adjusting lever body, and the other end of the connecting mechanism is connected with the lower valve deck; the connecting mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotationally connected with the main adjusting lever, the other end of the first connecting rod is rotationally connected with the second connecting rod, and the second connecting rod is rotationally connected with the lower valve deck. The pressure regulator has the effects that the working stability of the main regulating lever is improved, and stable and reliable air supply of the pressure regulator is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of voltage regulator technology, and in particular to an anti-drop lever for main adjustment of a voltage regulator. Background Art

[0002] Some early industrial users were using older-generation Fio pressure regulators, which often experienced valve failures, leading to tripping and gas shutoffs. Several repairs revealed that the cylindrical pin supporting the main regulator lever frequently fell off during its extension and retraction, causing the regulator to fail. This innovative approach replaces the pin with a blind head and retaining spring, ensuring the regulator does not become stuck or fall off during operation, thus ensuring stable and reliable gas supply. Utility Model Content

[0003] In order to improve the working stability of the main adjustment lever and ensure the stable and reliable gas supply of the pressure regulator, the present application provides an anti-falling lever for the main adjustment of the pressure regulator.

[0004] The present application provides an anti-drop lever for main adjustment of a voltage regulator, which adopts the following technical solution:

[0005] A pressure regulator main adjustment anti-falling lever includes a main adjustment lever, a connecting mechanism and a lower valve cover, wherein one end of the connecting mechanism is connected to the main adjustment lever, and the other end is connected to the lower valve cover; the connecting mechanism includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the main adjustment lever, and the other end is rotatably connected to the second connecting rod, and the second connecting rod is rotatably connected to the lower valve cover.

[0006] By adopting the above technical solution, the main regulating lever is connected to the lower valve cover through the connecting mechanism, so that the main regulating lever can move appropriately in the axial direction through the first connecting rod and the second connecting rod of the connecting mechanism, so that the main regulating lever has elastic space whether it is working in release or cut-off, reducing the mechanical fall-off caused by the fixed connection between the main regulating lever and the lower valve cover, and thus achieving the main regulating lever will not get stuck or fall off during the main regulating operation, thereby ensuring the stable and reliable air supply of the pressure regulator.

[0007] Preferably, a cross bar is symmetrically provided on the main adjustment lever, and the cross bar is used to be connected to the first connecting rod.

[0008] By adopting the above technical solution and setting the cross bar, it is beneficial to reduce the rotation range of the first connecting rod and the second connecting rod, improve the stress at the connection point on the first connecting rod and the second connecting rod, and thus improve the stability of the connection between the main regulating lever and the lower valve cover.

[0009] Preferably, one end of the second connecting rod close to the lower valve cover is radially connected to a rotating rod, and the rotating rod is connected to the lower valve cover.

[0010] By adopting the above technical solution, the second connecting rod is stably rotated to be connected to the lower valve cover through the rotating rod.

[0011] Preferably, a valve port is provided on the lower valve cover, a connecting hole is opened on the valve port, the second connecting rod includes a connecting rod portion, a connecting portion and a circular protrusion portion, the outer diameter of the connecting portion is smaller than the outer diameter of the connecting rod portion, the outer diameter of the connecting portion is also smaller than the outer diameter of the circular protrusion portion, and the connecting portion cooperates with the connecting hole.

[0012] By adopting the above technical solution, the second connecting rod is connected through the connecting part and the connecting hole, and the connection between the connecting part and the connecting hole is limited by the connecting rod part and the circular protrusion, so that one end of the second connecting rod is connected to the valve port, and the second connecting rod can also rotate within a certain range.

[0013] Preferably, a valve port is provided on the lower valve cover, a connecting hole is opened on the valve port, one end of the second connecting rod is rotatably connected to a connecting piece, the connecting piece includes a connecting portion and a circular protrusion, the outer diameter of the connecting portion is smaller than the outer diameter of the circular protrusion, and the connecting portion cooperates with the connecting hole.

[0014] By adopting the above technical solution, the second connecting rod is connected to the valve port through the connecting part of the connecting piece, and the connection between the connecting part and the connecting hole is limited by the circular protrusion and the second connecting rod, so that one end of the second connecting rod is connected to the valve port, and the second connecting rod can also rotate within a certain range.

[0015] Preferably, the first connecting rod includes a first connecting rod member No. 1 and a first connecting rod member No. 2, the first connecting rod member No. 1 is connected to the first connecting rod member No. 2, and the cross bar portion is located between the first connecting rod member No. 1 and the first connecting rod member No. 2.

[0016] By adopting the above technical solution, the first connecting rod is divided into two pieces, and the cross bar is located between the two pieces of the first connecting rod, so that the cross bar is tightly connected to the first connecting rod.

[0017] Preferably, the second connecting rod includes a No. 1 second connecting rod member and a No. 2 second connecting rod member, the No. 1 second connecting rod member is connected to the No. 2 second connecting rod member, and the connecting member portion is located between the No. 1 second connecting rod member and the No. 2 second connecting rod member.

[0018] By adopting the above technical solution, the second connecting rod is divided into two pieces, and the connecting piece is located between the two pieces of the second connecting rod, so that the connecting piece is tightly connected to the second connecting rod.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The main regulating lever is connected to the lower valve cover through a connecting mechanism, so that the main regulating lever can move appropriately in the axial direction through the first and second connecting rods of the connecting mechanism. This provides the main regulating lever with elastic space whether in release or cut-off operation, reducing mechanical separation caused by the fixed connection between the main regulating lever and the lower valve cover. As a result, the main regulating lever will not get stuck or fall off during the main regulating operation, thereby ensuring stable and reliable gas supply of the pressure regulator.

[0021] 2. The provision of the crossbar helps reduce the rotation range of the first and second connecting rods, improves the stress at the connection points of the first and second connecting rods, and thus improves the stability of the connection between the main regulating lever and the lower valve cover;

[0022] 3. The second connecting rod is stably connected to the lower valve cover through the rotating rod, and the second connecting rod is also stably connected to the valve port through the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 2 is a top view of the anti-fall lever in this embodiment;

[0024] Figure 2 In this embodiment Figure 1 A partial enlarged view of

[0025] Figure 3 In this embodiment Figure 2 sectional view of .

[0026] Figure numerals: 1. main adjusting lever; 2. connecting mechanism; 3. lower valve cover; 4. cross bar; 5. rotating rod; 6. valve port; 7. connecting hole; 8. connecting rod part; 9. connecting part; 10. round protrusion; 11. first connecting rod member No. 1; 12. first connecting rod member No. 2; 13. first connecting rod; 14. second connecting rod. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] An embodiment of the present application discloses an anti-drop lever for main adjustment of a voltage regulator.

[0029] Reference Figure 1 and Figure 3 , including a main regulating lever 1, a connecting mechanism 2 and a lower valve cover 3, wherein one end of the connecting mechanism 2 is connected to the main regulating lever 1, and the other end is connected to the lower valve cover 3;

[0030] A cross bar 4 is symmetrically welded to the lower portion of the main adjustment lever 1 , and a through hole for connecting with the connecting mechanism 2 is opened on the cross bar 4 .

[0031] The connecting mechanism 2 includes a first connecting rod 13 and a second connecting rod 14. One end of the first connecting rod 13 is hinged to the through hole on the main adjusting lever 1, and the other end is hinged to one end of the second connecting rod 14. The second connecting rod 14 includes a connecting rod portion 8, a connecting portion 9 and a circular protrusion 10 in sequence. The outer diameter of the connecting portion 9 is smaller than the outer diameter of the connecting rod portion 8, and the outer diameter of the connecting portion 9 is also smaller than the outer diameter of the circular protrusion 10. The connecting rod portion 8 is radially passed through by a rotating rod 5. The two ends of the rotating rod 5 are connected to the upper side bolts of the lower valve cover 3, so that the connecting rod portion 8 of the second connecting rod 14 is rotatably connected to the lower valve cover 3 through the rotating rod 5.

[0032] A valve port 6 is provided at the axis of the lower valve cover 3. The valve port 6 is in the shape of a circular ring. A connecting hole 7 is provided in the radial direction of the valve port 6. The connecting hole 7 is adapted to the connecting portion 9 of the second connecting rod 14. The second connecting rod 14 passes through the connecting portion 9 and the connecting hole 7 to connect, and the connection between the connecting portion 9 and the connecting hole 7 is limited by the connecting rod portion 8 and the circular protrusion, so that one end of the second connecting rod 14 is connected to the valve port 6, and the second connecting rod 14 can also rotate within a certain range, thereby making one end of the second connecting rod 14 hinged to the first connecting rod 13, and the other end is movably connected to the valve port 6 through the connecting portion 9, and the connecting rod portion 8 of the second connecting rod 14 is also hinged to the upper side of the lower valve cover 3, so that The second connecting rod 14 has a limited articulation range, and the second connecting rod 14 and the lower valve cover 3 are tightly connected, which effectively tightens the second connecting rod 14 and the lower valve cover 3, reducing the main regulating lever 1 and the lower valve cover 3 from getting stuck or falling off. Since the main regulating lever 1 can move appropriately in the axial direction through the first connecting rod 13 and the second connecting rod 14 of the connecting mechanism 2, the main regulating lever 1 has elastic space whether it is working in the release or cutting operation, reducing the mechanical falling off caused by the fixed connection between the main regulating lever 1 and the lower valve cover 3, and thus achieving the main regulating lever 1 will not get stuck or fall off during the main regulating operation, thereby ensuring the stable and reliable air supply of the pressure regulator.

[0033] Furthermore, in this embodiment, the second connecting rod 14 and the valve port 6 may also have other connection structures, so that the second connecting rod 14 is tightly connected to the valve port 6 without affecting the hinge between the second connecting rod 14 and the lower valve cover 3; preferably, one end of the second connecting rod 14 is hinged to the first connecting rod 13, and the other end is hinged to a connecting member, the connecting member includes a connecting portion 9 and a circular protrusion 10, so that after the connecting member passes through the connecting hole 7, the connecting member is hinged to the second connecting rod 14 through the connecting portion 9, thereby making the connecting portion 9 of the connecting member located in the connecting hole 7, and the connecting member is limited on the valve port 6 by the circular protrusion 10 and the second connecting rod 14, the radial direction of the second connecting rod 14 is also passed through and connected to the rotating rod 5, the two ends of the rotating rod 5 are bolted to the upper side of the lower valve cover 3, and the second connecting rod 14, the rotating rod 5 and the connecting member are hinged at the same position (or the second connecting rod 14 and the connecting member are hinged through the rotating rod 5).

[0034] Furthermore, in this embodiment, the first connecting rod 13 includes a first connecting rod member No. 11 and a first connecting rod member No. 2 12, the first connecting rod member No. 11 and the first connecting rod member No. 2 12 are welded, and when the first connecting rod 13 is hinged to the cross bar 4, the cross bar 4 is located between the first connecting rod member No. 1 11 and the first connecting rod member No. 2 12, by dividing the first connecting rod 13 into two pieces and locating the cross bar 4 between the two pieces of the first connecting rod 13, the cross bar 4 is tightly connected to the first connecting rod 13.

[0035] Furthermore, in this embodiment, the second connecting rod 14 includes a second connecting rod member No. 1 and a second connecting rod member No. 2, the second connecting rod member No. 1 is welded to the second connecting rod member No. 2, and when the second connecting rod 14 is hinged to the connecting member, the connecting member is located between the second connecting rod member No. 1 and the second connecting rod member No. 2, and the second connecting rod 14 is divided into two pieces and the connecting member is located between the two pieces of the second connecting rod member, so that the connecting member is tightly connected to the second connecting rod 14.

[0036] It should be noted that the various embodiments of the present application can be arbitrarily combined into new embodiments if the solutions do not conflict and the technical solutions can coexist.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An anti-drop lever for main adjustment of a voltage regulator, characterized by: It comprises a main regulating lever (1), a connecting mechanism (2) and a lower valve cover (3), wherein one end of the connecting mechanism (2) is connected to the main regulating lever (1), and the other end is connected to the lower valve cover (3); The connecting mechanism (2) includes a first connecting rod (13) and a second connecting rod (14), one end of the first connecting rod (13) is rotatably connected to the main adjustment lever (1), and the other end is rotatably connected to the second connecting rod (14), and the second connecting rod (14) is rotatably connected to the lower valve cover (3).

2. The anti-drop lever according to claim 1, characterized in that: A cross bar (4) is symmetrically arranged on the main adjustment lever (1), and the cross bar (4) is used to connect with the first connecting rod (13).

3. The anti-drop lever according to claim 1, characterized in that: One end of the second connecting rod (14) close to the lower valve cover (3) is radially connected to a rotating rod (5), and the rotating rod (5) is connected to the lower valve cover (3).

4. The anti-drop lever according to claim 3, characterized in that: The lower valve cover (3) is provided with a valve port (6), and the valve port (6) is provided with a connecting hole (7). The second connecting rod (14) includes a connecting rod portion (8), a connecting portion (9) and a circular protrusion (10). The outer diameter of the connecting portion (9) is smaller than the outer diameter of the connecting rod portion (8), and the outer diameter of the connecting portion (9) is also smaller than the outer diameter of the circular protrusion (10), and the connecting portion (9) cooperates with the connecting hole (7).

5. The anti-drop lever according to claim 3, characterized in that: The lower valve cover (3) is provided with a valve port (6), and the valve port (6) is provided with a connecting hole (7). One end of the second connecting rod (14) is rotatably connected to a connecting piece, and the connecting piece includes a connecting portion (9) and a circular protrusion (10). The outer diameter of the connecting portion (9) is smaller than the outer diameter of the circular protrusion (10), and the connecting portion (9) cooperates with the connecting hole (7).

6. The anti-drop lever according to claim 2, characterized in that: The first connecting rod (13) comprises a first connecting rod member (11) and a second first connecting rod member (12), wherein the first connecting rod member (11) is connected to the second first connecting rod member (12), and the cross bar (4) is located between the first connecting rod member (11) and the second first connecting rod member (12).

7. The anti-drop lever according to claim 5, characterized in that: The second connecting rod (14) comprises a first second connecting rod member and a second second connecting rod member, wherein the first second connecting rod member is connected to the second second connecting rod member, and the connecting member portion is located between the first second connecting rod member and the second second connecting rod member.

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