Tooth-shaped limiting mechanism capable of adjusting opening degree of valve

Abstract

The utility model discloses a tooth-shaped limiting mechanism capable of adjusting the opening degree of a valve, which comprises a machine shell, a box body is arranged below the machine shell, a connecting pipe is fixedly connected below the box body, a valve body is arranged below the connecting pipe, the tooth-shaped limiting mechanism further comprises an adjusting mechanism, and the adjusting mechanism comprises a valve rod arranged inside the box body. A main gear is fixedly connected to the bottom end of the valve rod, an adjusting plate is fixedly connected to the bottom end of the main gear, a connecting assembly is arranged on the outer surface of the main gear, an auxiliary gear is rotatably connected to the interior of the box body, a screw rod is fixedly connected to the bottom end of the auxiliary gear, and a baffle is in threaded connection to the outer surface of the screw rod; guide assemblies are installed on the two sides of the upper portion of the baffle. The problems that when an existing valve is in some specific occasions, the valve needs to be limited at the specific opening degree, the limiting adjustment range of a traditional limiting mechanism is small, the valve needs to be opened firstly, then the opening degree is adjusted, and operation is tedious are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a toothed limiting mechanism capable of adjusting the opening of a valve. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters of the conveying medium. They have functions such as shutoff, adjustment, diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves can be divided into shut-off valves, check valves, regulating valves, etc. according to their functions; they can also be divided into cast iron valves, cast steel valves, stainless steel valves, etc. according to their materials.

[0003] However, it still has the following disadvantages in actual use:

[0004] In some specific occasions, existing valves need to be limited to a specific opening. The traditional limit mechanism has a small limit adjustment range and the valve needs to be opened first and then the opening can be adjusted, which is relatively cumbersome to operate. Utility Model Content

[0005] The purpose of the utility model is to provide a toothed limit mechanism with adjustable valve opening, so as to solve the problem that the existing valve proposed in the above background technology needs to limit the valve to a specific opening in some specific occasions, the traditional limit mechanism has a small limit adjustment range, and the valve needs to be opened first and then the opening can be adjusted, which is a cumbersome operation.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model discloses a tooth-shaped limit mechanism for adjusting the opening of a valve, comprising a casing, a box body being installed below the casing, a connecting pipe being fixedly connected below the box body, a valve body being installed below the connecting pipe, and an adjusting mechanism: the adjusting mechanism comprises a valve stem arranged inside the box body, the bottom end of the valve stem is fixedly connected to a main gear, the bottom end of the main gear is fixedly connected to an adjusting plate, a connecting assembly is arranged on the outer surface of the main gear, an auxiliary gear is rotatably connected inside the box body, a screw is fixedly connected to the bottom end of the auxiliary gear, a baffle is threadedly connected to the outer surface of the screw, and guide assemblies are installed on both sides above the baffle; a locking mechanism: the locking mechanism is arranged above the casing.

[0008] Furthermore, the locking mechanism includes an adjustment block arranged above the casing, a driving assembly is fixedly connected below the adjustment block, gear rings are rotatably connected on both sides of the adjustment block above the casing, mounting columns are fixedly connected at the centers of the two groups of gear rings, a spring clamping rod is rotatably connected to the top of the mounting column, and rotating assemblies are installed at both ends of the spring clamping rod.

[0009] Furthermore, the driving assembly includes a fixing ring arranged below the adjusting block, the outer surface of the fixing ring is provided with teeth, the outer surface of the gear ring is provided with tooth grooves, and the gear ring and the fixing ring are meshingly connected.

[0010] Furthermore, the rotating assembly includes bevel gears arranged on both sides of the spring clamp rod, the bevel gears and the gear ring are meshingly connected, and the spring clamp rod is in the shape of an L-shaped plate.

[0011] Furthermore, the connecting assembly includes a collar arranged on the outer surface of the main gear, a gear block is installed on the inner side of the collar, and the collar and the main gear are meshingly connected.

[0012] Furthermore, the guide assembly includes guide rods arranged on both sides of the baffle, and a guide groove is provided at the connection between the valve body and the connecting pipe.

[0013] Furthermore, the regulating block and the valve stem are fixedly connected, rotating teeth are installed on the outer surface of the collar, the collar and the auxiliary gear are meshingly connected, and a threaded groove is provided inside the baffle.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The utility model is provided with an adjusting mechanism, by which a staff member can drive a valve stem fixed at the bottom end to rotate by rotating the adjusting block, so that the rotation of the valve stem drives the main gear fixed at the bottom end to rotate, so that the rotation of the main gear drives the sleeve ring meshingly connected on the outer surface to rotate, so that the rotation of the sleeve drives the auxiliary gear meshingly connected on one side to rotate inside the box body, thereby rotating the screw fixed at the bottom end of the auxiliary gear, so that the baffle plate threadedly connected to the outer surface of the screw rises along the guide groove, so that the baffle plate is guided and raised from the inside of the valve body to the inside of the connecting pipe, releasing the adjustment plate fixed at the bottom end of the main gear to rotate inside the valve body, so that the two functions of opening the valve and adjusting the opening degree at the same time can be realized, the operation steps are simplified, and it is more convenient to use.

[0016] Based on the above beneficial effects, a locking mechanism is provided. After the valve is adjusted as above, the staff can drive the fixed ring fixedly connected to the bottom end of the adjusting block to rotate by rotating the adjusting block, so that the rotation of the fixed ring drives the gear rings meshing on both sides to rotate, so that the gear rings drive the meshing bevel gears on the top to rotate during the rotation, so that the spring clamping rod with bevel gears fixedly connected on both sides is flipped upward at the center of the mounting column, and when the staff stops rotating the adjusting block, the spring clamping rod can be reset to clamp the top of the fixed ring, ensuring that the valve stem is locked under normal conditions and one-way locking during opening adjustment, thereby improving the safety during the opening adjustment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is an axonometric drawing of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 This is a disassembled diagram of the utility model;

[0021] Figure 4 It is an exploded view of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Casing; 2. Box body; 3. Valve body; 4. Adjusting block; 5. Gear ring; 6. Fixed ring; 7. Main gear; 8. Spring clamp rod; 9. Bevel gear; 10. Mounting column; 11. Screw; 12. Baffle; 13. Adjusting plate; 14. Connecting pipe; 15. Valve stem; 16. Auxiliary gear; 17. Ring. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1-4 As shown, this embodiment is a tooth-shaped limit mechanism with adjustable valve opening, including a casing 1, a box body 2 is installed below the casing 1, a connecting pipe 14 is fixedly connected to the bottom of the box body 2, a valve body 3 is installed below the connecting pipe 14, and also includes an adjusting mechanism: the adjusting mechanism includes a valve stem 15 arranged inside the box body 2, the bottom end of the valve stem 15 is fixedly connected to the main gear 7, the bottom end of the main gear 7 is fixedly connected to the adjusting plate 13, the outer surface of the main gear 7 is provided with a connecting assembly, the inside of the box body 2 is rotatably connected to an auxiliary gear 16, the bottom end of the auxiliary gear 16 is fixedly connected to a screw 11, the outer surface of the screw 11 is threadedly connected to a baffle 12, and guide assemblies are installed on both sides above the baffle 12; locking mechanism: the locking mechanism is arranged above the casing 1.

[0028] The adjustment mechanism serves as the main bearing structure and can increase the operational flexibility and linkage of the entire structure by being fixedly connected to the overall device.

[0029] The connecting assembly comprises a collar 17 arranged on the outer surface of the main gear 7, a tooth block is installed on the inner side of the collar 17, and the collar 17 and the main gear 7 are meshingly connected.

[0030] The connection assembly is arranged so that the main gear 7 can rotate to drive the sleeve ring 17 to rotate.

[0031] The guide assembly includes guide rods arranged on both sides of the baffle 12, a guide groove is provided at the connection between the valve body 3 and the connecting pipe 14, the adjustment block 4 and the valve stem 15 are fixedly connected, a rotating tooth is installed on the outer surface of the ring 17, the ring 17 and the auxiliary gear 16 are meshingly connected, and a threaded groove is provided inside the baffle 12.

[0032] The guide assembly is arranged so as to guide the baffle plate 12 to be lifted and lowered, thereby preventing the baffle plate 12 from rotating inside the valve body 3 as the screw rod 11 rotates.

[0033] Working principle: The staff can drive the valve stem 15 fixed at the bottom to rotate by rotating the adjusting block 4, so that the valve stem 15 rotates and drives the main gear 7 fixed at the bottom to rotate, so that the main gear 7 rotates and drives the ring 17 meshing on the outer surface to rotate, so that the ring 17 rotates and drives the auxiliary gear 16 meshing on one side to rotate inside the box body 2, so that the screw 11 fixed at the bottom end of the auxiliary gear 16 rotates, and the baffle 12 threaded on the outer surface of the screw 11 rises along the guide groove, so that the baffle 12 is guided and raised from the inside of the valve body 3 to the inside of the connecting pipe 14, and the adjusting plate 13 fixed at the bottom end of the main gear 7 rotates inside the valve body 3, which can realize the two functions of opening the valve and adjusting the opening at the same time, simplifying the operating steps and making it more convenient to use.

[0034] See also Figure 1-4 As shown, this embodiment is based on the above-mentioned embodiment 1 and further includes a locking mechanism, which includes an adjusting block 4 arranged above the casing 1, a driving assembly is fixedly connected to the bottom of the adjusting block 4, gear rings 5 ​​are rotatably connected to both sides of the adjusting block 4 above the casing 1, mounting columns 10 are fixedly connected at the centers of the two sets of gear rings 5, a spring clamping rod 8 is rotatably connected to the top of the mounting column 10, and rotating components are installed at both ends of the spring clamping rod 8.

[0035] The driving assembly includes a fixed ring 6 arranged below the adjusting block 4. The outer surface of the fixed ring 6 is provided with tooth patterns. The outer surface of the gear ring 5 is provided with tooth grooves. The gear ring 5 and the fixed ring 6 are meshingly connected.

[0036] The drive assembly is arranged so that when the adjusting block 4 rotates, the two sets of gear rings 5 ​​can rotate simultaneously, so that the spring clamping rod 8 is lifted upward.

[0037] The rotating assembly includes bevel gears 9 arranged on both sides of a spring clamping rod 8. The bevel gears 9 and the gear ring 5 are meshingly connected. The spring clamping rod 8 is in the shape of an L-shaped plate.

[0038] The rotating assembly is arranged so that the gear ring 5 and the bevel gear 9 can be meshed, thereby releasing the engagement of the spring clamping rod 8 with the fixing ring 6 .

[0039] Working principle: By rotating the adjusting block 4, the staff can drive the fixed ring 6 fixedly connected to the bottom end of the adjusting block 4 to rotate, so that the rotation of the fixed ring 6 drives the gear rings 5 ​​meshing on both sides to rotate, so that the gear ring 5 drives the bevel gear 9 meshing on the top to rotate during the rotation, so that the spring clamping rod 8 fixedly connected to the bevel gear 9 on both sides is turned upward at the center of the mounting column 10. When the staff stops rotating the adjusting block 4, the spring clamping rod 8 can be reset to clamp the upper part of the fixed ring 6;

[0040] This step ensures that the valve stem 15 is locked in a normal state and is unidirectionally locked during opening adjustment, thereby improving the safety during the opening adjustment operation.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A toothed limit mechanism for adjusting valve opening, comprising a housing (1), a box body (2) installed below the housing (1), a connecting pipe (14) fixedly connected below the box body (2), a valve body (3) installed below the connecting pipe (14), characterized in that: Also includes: Adjustment mechanism: The adjustment mechanism comprises a valve stem (15) arranged inside the housing (2), the bottom end of the valve stem (15) is fixedly connected to a main gear (7), the bottom end of the main gear (7) is fixedly connected to an adjustment plate (13), a connection assembly is arranged on the outer surface of the main gear (7), an auxiliary gear (16) is rotatably connected inside the housing (2), the bottom end of the auxiliary gear (16) is fixedly connected to a screw rod (11), the outer surface of the screw rod (11) is threadedly connected to a baffle plate (12), and guide assemblies are installed on both sides above the baffle plate (12); Locking mechanism: The locking mechanism is arranged above the casing (1).

2. A toothed limit mechanism for adjusting valve opening according to claim 1, characterized in that: The locking mechanism comprises an adjusting block (4) arranged above the housing (1), a driving assembly is fixedly connected below the adjusting block (4), gear rings (5) are rotatably connected to both sides of the adjusting block (4) above the housing (1), mounting columns (10) are fixedly connected at the centers of the two sets of gear rings (5), a spring clamping rod (8) is rotatably connected to the top end of the mounting column (10), and rotating components are installed at both ends of the spring clamping rod (8).

3. A toothed limit mechanism for adjusting valve opening according to claim 2, characterized in that: The driving assembly comprises a fixing ring (6) arranged below the adjusting block (4), the outer surface of the fixing ring (6) is provided with tooth patterns, the outer surface of the gear ring (5) is provided with tooth grooves, and the gear ring (5) and the fixing ring (6) are meshingly connected.

4. A toothed limit mechanism for adjusting valve opening according to claim 2, characterized in that: The rotating assembly comprises bevel gears (9) arranged on both sides of the spring clamp rod (8), the bevel gears (9) and the gear ring (5) are meshingly connected, and the spring clamp rod (8) is in the shape of an L-shaped plate.

5. The toothed limiting mechanism for adjusting valve opening according to claim 2, characterized in that: The connecting assembly comprises a collar (17) arranged on the outer surface of the main gear (7), a tooth block is installed on the inner side of the collar (17), and the collar (17) and the main gear (7) are meshingly connected.

6. A toothed limit mechanism for adjusting valve opening according to claim 1, characterized in that: The guide assembly comprises guide rods arranged on both sides of the baffle (12), and a guide groove is provided at the connection between the valve body (3) and the connecting pipe (14).

7. A toothed limit mechanism for adjusting valve opening according to claim 5, characterized in that: The regulating block (4) and the valve stem (15) are fixedly connected, the outer surface of the collar (17) is provided with rotating teeth, the collar (17) and the auxiliary gear (16) are meshingly connected, and a threaded groove is provided inside the baffle (12).

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