Adjustable throttle valve rod

Abstract

The utility model relates to the technical field of petroleum machinery, and discloses an adjustable throttle valve rod which comprises a locking assembly, the locking assembly comprises a throttle valve body, one side of the throttle valve body is connected with a flange piece, the throttle valve body is connected with a valve rod body, the upper end of the valve rod body is connected with a rotary knob, the valve rod body is connected with a sealing ring, and the sealing ring is connected with the rotary knob. The outer ring of the valve rod body is connected with a ratchet wheel, the ratchet wheel is connected with a ratchet, the lower side of the ratchet is connected with a rotating column, one end of the ratchet is connected with a pressing plate, one side of the ratchet is connected with a first spring, one end of the first spring is connected with a fixing plate, and the lower end of the valve rod body is connected with a second spring. According to the utility model, the position of the valve rod can be firmly fixed, the valve rod is prevented from deviating or loosening under the influence of the external environment, the flow stability is improved, the valve head can be quickly and easily replaced by maintenance personnel, the maintenance cost is greatly reduced, and the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum machinery technical field, concretely is a kind of adjustable throttle valve stem. BACKGROUND

[0002] Flow valve is widely used in petroleum, chemical industry, metallurgy, electric power and aerospace and other industries as an important flow control equipment, and its core function is to realize the accurate control of fluid flow by adjusting the opening of valve and the size of valve port.

[0003] The throttle valve stem in the prior art still has some deficiencies when in use: the existing throttle valve stem when in use, the position of valve stem is often not firmly fixed, so that in the environment of vibration or impact, the valve stem is prone to loosen, and the existing throttle valve stem when in use, the valve head is often not convenient to remove and replace, which reduces the maintenance efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides an adjustable throttle valve stem.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable throttle valve stem, comprising a locking assembly, the locking assembly comprises a throttle valve body, one side of the throttle valve body is connected with a flange piece, the throttle valve body is connected with a valve stem body, the upper end of the valve stem body is connected with a knob, the valve stem body is connected with a sealing ring, the outer circle of the valve stem body is connected with a ratchet wheel, the ratchet wheel is connected with a ratchet, the lower side of the ratchet is connected with a rotating column, one end of the ratchet is connected with a pressing plate, one side of the ratchet is connected with a first spring, one end of the first spring is connected with a fixed plate, the lower end of the valve stem body is connected with a second spring, one side of the valve stem body is provided with a threaded hole, a cross bolt is connected in the threaded hole, and the cross bolt is connected with a valve head.

[0006] As a further description of the above technical scheme:

[0007] The flange piece is fixedly connected to one side of the throttle valve body, the valve stem body is arranged on the throttle valve body, and the lower end of the knob is fixedly connected to the upper end of the valve stem body.

[0008] As a further description of the above technical scheme:

[0009] The sealing ring is fixedly connected to the outer circle of the valve stem body, the ratchet wheel is fixedly connected to the outer circle of the valve stem body, and the ratchet wheel is engaged with the ratchet.

[0010] As a further description of the above technical scheme:

[0011] The ratchet is fixed on the rotating column, the lower end of the rotating column is rotatably connected to the throttle valve body, and the pressing plate is fixed on one end of the ratchet.

[0012] Further description of the above technical solution is as follows:

[0013] One end of the first spring is fixed on one side of the ratchet, the end of the first spring away from the ratchet is fixed on one side of the fixed plate, and the fixed plate is fixed on the throttle valve body.

[0014] Further description of the above technical solution is as follows:

[0015] The threaded hole is arranged on the valve rod body, and the cross bolt is threadedly connected to the threaded hole.

[0016] Further description of the above technical solution is as follows:

[0017] The valve head is slidably connected to the lower end of the valve rod body, the upper end of the second spring is fixed on the valve rod body, and the lower end of the second spring abuts against the valve head.

[0018] The utility model has the advantages of:

[0019] 1. The knob is rotated to drive the valve rod body to rotate, thereby driving the ratchet to rotate clockwise, so that the ratchet extrudes the ratchet to slide, when rotating to the appropriate position, the ratchet is locked on the ratchet by the elastic force of the first spring, so that the position of the valve rod can be fixed firmly, preventing it from being deviated or loosened under the influence of external environment, and improving the flow stability.

[0020] 2. The cross bolt is rotated by using a tool, so that the cross bolt slides out of the threaded hole arranged on the valve rod body, the valve head is pushed out of the valve rod body by the elastic force of the second spring, so that the valve head can be replaced quickly and easily by the maintenance personnel, thereby greatly reducing the maintenance cost and improving the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 A three-dimensional structure schematic view of the adjustable throttle valve rod is provided.

[0022] Fig. 2 A partial structure schematic view of the adjustable throttle valve rod is provided.

[0023] Fig. 3 A partial explosion structure schematic view of the adjustable throttle valve rod is provided.

[0024] LEGEND:

[0025] 1, locking assembly; 101, throttle valve body; 102, flange piece; 103, valve stem body; 104, knob; 105, sealing ring; 106, ratchet; 107, ratchet tooth; 108, rotating column; 109, pressing plate; 110, first spring; 111, fixed plate; 112, second spring; 113, threaded hole; 114, cross bolt; 115, valve head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Referring to Figs. 1-3 The utility model provides a kind of adjustable throttle valve valve stem, comprising: locking assembly 1.

[0028] Specifically, locking assembly 1 includes throttle valve body 101, and throttle valve body 101 side is connected with flange piece 102, and throttle valve body 101 is connected with valve stem body 103, and valve stem body 103 upper end is connected with knob 104, and valve stem body 103 is connected with sealing ring 105, and valve stem body 103 outer ring is connected with ratchet 106, and ratchet 106 is connected with ratchet tooth 107, and ratchet tooth 107 lower side is connected with rotating column 108, and ratchet tooth 107 one end is connected with pressing plate 109, and ratchet tooth 107 one side is connected with first spring 110, and first spring 110 one end is connected with fixed plate 111, and valve stem body 103 lower end is connected with second spring 112, and valve stem body 103 side is equipped with threaded hole 113, and threaded hole 113 is connected with cross bolt 114 in, and cross bolt 114 is connected with valve head 115 simultaneously.

[0029] In the embodiment, locking assembly 1 constitutes the adjustable throttle valve valve stem involved in the present application, and the locking of valve stem is realized and convenient to replace.

[0030] In the embodiment, flange piece 102 is fixedly connected on the side of throttle valve body 101, and flange piece 102 is equipped with multiple groups, and is arranged on the two sides of throttle valve body 101 respectively.

[0031] It should be noted that sealing ring 105 is fixedly connected on the outer ring of valve stem body 103, which can increase its sealing property and prevent leakage.

[0032] Specifically, the flange 102 is fixed to one side of the throttle valve body 101, the valve stem body 103 is arranged on the throttle valve body 101, the lower end of the knob 104 is fixed to the upper end of the valve stem body 103, the sealing ring 105 is fixed to the outer ring of the valve stem body 103, the ratchet wheel 106 is fixed to the outer ring of the valve stem body 103, the ratchet wheel 106 is engaged with the ratchet tooth 107, the ratchet tooth 107 is fixed to the rotating column 108, the lower end of the rotating column 108 is rotatably connected to the throttle valve body 101, the pressing plate 109 is fixed to one end of the ratchet tooth 107, one end of the first spring 110 is fixed to one side of the ratchet tooth 107, the end of the first spring 110 away from the ratchet tooth 107 is fixed to one side of the fixed plate 111, the fixed plate 111 is fixed to the throttle valve body 101, the threaded hole 113 is arranged on the valve stem body 103, the cross bolt 114 is threadedly connected to the threaded hole 113, the cross bolt 114 is threadedly connected to the valve head 115, the valve head 115 is slidably connected to the lower end of the valve stem body 103, and the upper end of the second spring 112 is fixed to the valve stem body 103, and the lower end of the second spring 112 abuts against the valve head 115.

[0033] As a preferred embodiment, the ratchet tooth 107 is engaged with the ratchet wheel 106, when the valve stem body 103 rotates, the ratchet wheel 106 rotates following, the ratchet tooth 107 can lock the ratchet wheel 106, thereby preventing the valve stem body 103 from rotating.

[0034] As a preferred embodiment, the first spring 110 is fixed to one side of the ratchet tooth 107, the ratchet tooth 107 is connected to the ratchet wheel 106 through the elastic force of the first spring 110.

[0035] Specifically, the valve head 115 is connected to the threaded hole 113 arranged on the valve stem body 103 through the cross bolt 114, thereby the valve head 115 can be connected to the valve stem body 103.

[0036] In use, when the throttle valve is used, the knob is rotated to drive the valve stem body to rotate, thereby driving the ratchet wheel to rotate clockwise, the ratchet wheel extrudes the ratchet tooth to slide, when it is rotated to the appropriate position, the ratchet tooth is locked on the ratchet wheel through the elastic force of the first spring, thereby the valve stem body can only rotate in one direction to be locked, then, if it is needed to rotate the valve stem body in the opposite direction, the pressing plate is pressed to make the ratchet tooth slide out of the ratchet wheel, the first spring is extruded to contract, the valve stem body can be rotated in the opposite direction, then, if it is needed to replace the valve head, a tool is used to rotate the cross bolt to make the cross bolt slide out of the threaded hole arranged on the valve stem body, the valve head is pushed to slide out of the valve stem body through the elastic force of the second spring to be replaced.

[0037] The valve rod of the adjustable throttling valve can firmly fix the position of the valve rod, prevents the valve rod from being deviated or loosened under the influence of external environment, improves the flow stability, and enables the maintenance personnel to quickly and easily replace the valve head, greatly reduces the maintenance cost, and thus improves the maintenance efficiency.

[0038] It should be noted that the electrical components in this document are all connected with the main controller and 220V mains, and the main controller can be a conventional known device controlled by a computer, etc., and the detailed description of the known functions and known components is omitted in the specific embodiments of the present disclosure. In order to ensure the compatibility of the device, the operation means adopted is consistent with the parameters of the market appliances.

[0039] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable throttle valve stem, characterized by: The utility model provides a locking assembly (1), the locking assembly (1) includes throttle valve body (101), and throttle valve body (101) one side is connected with flange piece (102), and throttle valve body (101) is connected with valve stem body (103), valve stem body (103) upper end is connected with knob (104), and valve stem body (103) is connected with sealing ring (105), and valve stem body (103) outer circle is connected with ratchet wheel (106), ratchet wheel (106) is connected with ratchet tooth (107), and ratchet tooth (107) lower side is connected with rotating column (108), and ratchet tooth (107) one end is connected with press plate (109), ratchet tooth (107) one side is connected with first spring (110), and first spring (110) one end is connected with fixed plate (111), valve stem body (103) lower end is connected with second spring (112), and valve stem body (113) one side is equipped with threaded hole (113), and threaded hole (113) is connected with cross bolt (114) in, simultaneously cross bolt (114) is connected with valve head (115).

2. An adjustable choke valve stem as defined in claim 1, wherein: The flange piece (102) is fixedly connected to one side of the throttle valve body (101), and the valve stem body (103) is arranged on the throttle valve body (101), and the lower end of the knob (104) is fixedly connected to the upper end of the valve stem body (103).

3. An adjustable choke valve stem as defined in claim 2, wherein: The sealing ring (105) is fixedly connected to the outer circle of the valve stem body (103), and the ratchet wheel (106) is fixedly connected to the outer circle of the valve stem body (103), and the ratchet wheel (106) is engaged with the ratchet tooth (107).

4. An adjustable choke valve stem as defined in claim 3, wherein: The ratchet tooth (107) is fixedly connected to the rotating column (108), and the lower end of the rotating column (108) is rotatably connected to the throttle valve body (101), and the press plate (109) is fixedly connected to one end of the ratchet tooth (107).

5. An adjustable choke valve stem as defined in claim 4, wherein: One end of the first spring (110) is fixedly connected to one side of the ratchet tooth (107), and the other end of the first spring (110) is fixedly connected to one side of the fixed plate (111), and the fixed plate (111) is fixedly connected to the throttle valve body (101).

6. An adjustable choke valve stem as defined in claim 5, wherein: The threaded hole (113) is arranged on the valve stem body (103), and the cross bolt (114) is threadedly connected to the threaded hole (113), and the cross bolt (114) is threadedly connected to the valve head (115).

7. An adjustable choke valve stem as defined in claim 6, wherein: The valve head (115) is slidably connected to the lower end of the valve stem body (103), and the upper end of the second spring (112) is fixedly connected to the valve stem body (103), and the lower end of the second spring (112) abuts against the valve head (115).

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