Novel valve rod segmented joint

Abstract

The utility model relates to the technical field of valve rods, and discloses a novel valve rod segmented connector which comprises a segmented connector body, a first valve rod and a second valve rod are arranged on the left side and the right side of the segmented connector body respectively, sealing mechanisms are arranged on the left side and the right side of the segmented connector body, and the first valve rod and the second valve rod are inserted into the segmented connector body. The first valve rod can be positioned and locked by means of threaded connection through the arranged threaded part and inserting the positioning pin into the mounting hole, then the mounting disc B is close to the mounting disc A, the mounting disc B and the mounting disc A can be fixed through the arranged bolt, and at the moment, the mounting disc B and the mounting disc A can be sealed through the sealing coating. The sealing ring and the second valve rod are sealed through the sealing gasket, so that a whole formed by the installation disc B, the necking part and the sealing ring is tightly connected with the segmented connector body and the second valve rod, the sealing effect is good, dust cannot enter from a gap, and friction resistance is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of valve stem, concretely to a new type valve stem sectional joint. BACKGROUND

[0002] The valve stem sectional joint refers to a connecting design used in a valve system, which is usually used to divide the valve stem into multiple parts and connect these parts through the joint to meet different design requirements, structural limitations or maintenance requirements.

[0003] Such as the utility model discloses a new type valve stem sectional joint, including sectional joint body, sectional joint body one end is connected with first valve stem, the other end is fixedly connected with second valve stem, wherein sectional joint body outer wall is equipped with at least one through -hole, this through -hole is perpendicular with sectional joint body outer wall, sectional joint body is equipped with the cavity that left and right penetrates, the inner wall of cavity is equipped with internal thread, first valve stem one end is equipped with external thread, the utility model discloses a structure simple and convenient, and practicality is strong, can effectively reduce the worker maintenance work hour, improves the work efficiency of worker.

[0004] The above patent proposes that the first valve stem and the second valve stem can be threadedly connected in the interior of the sectional structure body to realize the connecting effect, but in the use process of the valve stem sectional joint, since the valve stem is directly threadedly connected in the interior of the sectional joint body, gaps are prone to exist between the valve stem and the sectional joint body, dust is prone to enter the interior of the sectional joint body during use, frictional resistance is increased, and use is affected.

[0005] Therefore, the new type valve stem sectional joint is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a new type valve stem sectional joint to solve the problem that gaps are prone to exist between the valve stem and the sectional joint body, dust is prone to enter the interior of the sectional joint body during use, frictional resistance is increased, and use is affected.

[0007] To achieve the above object, the utility model provides the following technical scheme: a new type valve stem sectional joint, including sectional joint body, the left and right sides of sectional joint body are respectively provided with first valve stem and second valve stem, and the left and right sides of sectional joint body are provided with sealing mechanism, the sealing effect can be achieved by the sealing mechanism, so that the sectional joint body is sealed with the first valve stem and the second valve stem respectively.

[0008] The sealing mechanism comprises a mounting disc B and a necking portion arranged on one side of the mounting disc B, a sealing ring is arranged on the end of the necking portion away from the mounting disc B, a sealing gasket is embedded on the inner wall of the sealing ring, sealing coating layers are arranged on the side walls of the mounting disc B and the segmented joint body, and bolts for fixing are further arranged on the mounting disc B, the mounting disc B can be fixed on the segmented joint body by the bolts, and the sealing gasket and the sealing coating layers are used for sealing.

[0009] Preferably, threads are uniformly distributed on the outer walls of the first valve rod and the second valve rod, and the threads are used for threadedly connecting with the segmented joint body.

[0010] Preferably, the segmented joint body comprises a center plate and positioning holes arranged on the left and right side walls of the segmented joint body, mounting holes are arranged on the surface of the segmented joint body, and positioning pins are rotatably connected in the mounting holes, the segmented joint body and the first valve rod can be positioned and locked by the positioning pins.

[0011] Preferably, wear-resistant layers are coated on the left and right side walls of the center plate, and the wear-resistant layers can reduce the friction between the first valve rod and the center plate.

[0012] Preferably, mounting discs A are arranged on the left and right outer walls of the segmented joint body respectively, the mounting discs A are in contact with the mounting disc B, and the mounting discs A are used in cooperation with the sealing mechanism.

[0013] Preferably, the sealing mechanism further comprises positioning columns arranged on one side of the mounting disc B, the positioning columns are matched with the positioning holes, and the positioning of the mounting disc B and the mounting disc A can be completed by cooperation of the positioning columns and the positioning holes.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、Through the segmented joint body, the first valve rod, the second valve rod and the sealing mechanism, the first valve rod and the second valve rod are threadedly connected in the segmented joint body, then the sealing can be realized by the sealing mechanism, so that the dust cannot enter from the gap, and the frictional resistance is effectively reduced.

[0016] 2、Through the mounting disc A, the mounting disc B, the positioning hole and the positioning column, the positioning of the mounting disc A and the mounting disc B can be completed by cooperation of the positioning hole and the positioning column, and the sealing mechanism can be installed and fixed on the segmented joint body by the bolts, so that the installation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0018] Figure 2A sectional joint body three-dimensional structure schematic view of the utility model;

[0019] Figure 3 A sealing mechanism three-dimensional structure schematic view of the utility model;

[0020] Figure 4 A mounting hole and positioning hole three-dimensional structure schematic view of the utility model.

[0021] In the drawing: 1, sectional joint body;11, mounting hole;12, positioning hole;13, positioning pin;14, center plate;141, wear-resistant layer;15, mounting disc A;2, first valve rod;21, threaded part;3, second valve rod;4, sealing mechanism;41, mounting disc B;42, necking part;43, sealing ring;44, sealing gasket;45, positioning column;46, bolt;47, sealing coating. DETAILED DESCRIPTION

[0022] 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 scope of protection of the utility model.

[0023] Embodiment one: please refer to Figures 1-4 A novel valve rod sectional joint, including sectional joint body 1, sectional joint body 1's left and right sides are provided with first valve rod 2 and second valve rod 3 respectively, and sectional joint body 1's left and right sides are provided with sealing mechanism 4, the sealing effect can be achieved by the sealing mechanism 4 arranged, so that sectional joint body 1 is sealed with first valve rod 2 and second valve rod 3 respectively, can avoid dust entering;

[0024] Sealing mechanism 4 includes mounting disc B 41 and necking part 42 arranged on one side of mounting disc B 41, and the end of necking part 42 away from mounting disc B 41 is provided with sealing ring 43, sealing gasket 44 is embedded on the inner wall of sealing ring 43, sealing coating 47 is arranged on the side wall of mounting disc B 41 and sectional joint body 1, and bolt 46 for fixing installation is further arranged on mounting disc B 41, bolt 46 arranged can fix mounting disc B 41 on sectional joint body 1, sealing gasket 44 and sealing coating 47 arranged can be sealed, which can effectively reduce dust entering.

[0025] The outer wall of first valve rod 2 and second valve rod 3 is uniformly distributed with threaded part 21, threaded part 21 is used for being connected with sectional joint body 1 in screw thread, and second valve rod 3 can be screwed and installed in sectional joint body 1, and the connection between first valve rod 2 and second valve rod 3 can be completed.

[0026] The segmented joint body 1 comprises a center plate 14 and positioning holes 12 provided on the left and right side walls of the segmented joint body 1, and mounting holes 11 are provided on the surface of the segmented joint body 1, and positioning pins 13 are rotatably connected in the mounting holes 11, the positioning pins 13 can be used to position and lock the segmented joint body 1 and the first valve rod 2, so that the first valve rod 2 is fixed with the segmented joint body 1.

[0027] In this embodiment, the first valve rod 2 and the second valve rod 3 are inserted into the segmented joint body 1 and are threadedly connected by the threaded portion 21, the connection between the first valve rod 2 and the second valve rod 3 is completed, the positioning pin 13 is inserted into the mounting hole 11, the first valve rod 2 is positioned and locked, then the mounting disc B41 is close to the mounting disc A15, the two are fixed by the bolts 46, at this time, the mounting disc B41 and the mounting disc A15 are sealed by the sealing coating 47, the sealing ring 43 and the first valve rod 2 are sealed by the sealing gasket 44, so that the mounting disc B41, the necked portion 42 and the sealing ring 43 are relatively close to the segmented joint body 1 and the first valve rod 2, the sealing effect is good, dust cannot enter from the gap, the frictional resistance is effectively reduced, and the use is facilitated.

[0028] Embodiment two: this embodiment is improved on the basis of embodiment one, specifically, please refer to Figure 2 and Figure 3 The left and right side walls of the center plate 14 are coated with wear-resistant layers 141, the wear-resistant layers 141 can reduce the friction between the first valve rod 2 and the center plate 14, when the first valve rod 2 and the second valve rod 3 are inserted into the segmented joint body 1, the first valve rod 2 and the second valve rod 3 can contact the center plate 14, and the relative positions of the first valve rod 2 and the second valve rod 3 can be maintained.

[0029] The left and right outer walls of the segmented joint body 1 are respectively provided with mounting discs A15, the mounting discs A15 contact the mounting disc B41, and the mounting discs A15 are used in cooperation with the sealing mechanism 4.

[0030] The sealing mechanism 4 further comprises a positioning column 45 provided on one side of the mounting disc B41, the positioning column 45 is matched with the positioning hole 12, and the positioning column 45 and the positioning hole 12 can be used to position the mounting disc B41 and the mounting disc A15.

[0031] In the embodiment, when the first valve rod 2 and the second valve rod 3 are inserted into the segmented joint body 1 respectively, the first valve rod 2 and the second valve rod 3 can be in contact with the center plate 14, the relative positions of the first valve rod 2 and the second valve rod 3 can be maintained, then the mounting disc B 41 is close to the mounting disc A 15, the positioning column 45 is inserted into the positioning hole 12, the positioning between the mounting disc A 15 and the mounting disc B 41 can be realized, then the sealing mechanism 4 is installed on the segmented joint body 1 by using the bolt 46, the whole composed of the mounting disc B 41, the necked portion 42 and the sealing ring 43 can wrap the segmented joint body 1 and the first valve rod 2, and the sealing effect can be realized, which is beneficial to the overall use.

[0032] Working principle: the first valve rod 2 and the second valve rod 3 are inserted into the segmented joint body 1, and are threadedly connected by using the threaded portion 21, the positioning pin 13 is inserted into the mounting hole 11, the first valve rod 2 can be positioned and locked, the mounting disc B 41 is close to the mounting disc A 15, the positioning column 45 is inserted into the positioning hole 12, the positioning between the mounting disc A 15 and the mounting disc B 41 can be realized, then the sealing mechanism 4 is installed on the segmented joint body 1 by using the bolt 46, the whole composed of the mounting disc B 41, the necked portion 42 and the sealing ring 43 can wrap the segmented joint body 1 and the first valve rod 2, at this time, the mounting disc B 41 and the mounting disc A 15 can be sealed by using the sealing coating 47, the sealing ring 43 and the first valve rod 2 are sealed by using the sealing gasket 44, so that the whole composed of the mounting disc B 41, the necked portion 42 and the sealing ring 43 is relatively close to the segmented joint body 1 and the first valve rod 2.

[0033] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, the skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel valve stem segmented connector, comprising a segmented connector body (1), characterized in that: The segmented connector body (1) is provided with a first valve stem (2) and a second valve stem (3) on its left and right sides respectively. The segmented connector body (1) is provided with a sealing mechanism (4) on its left and right sides. The sealing mechanism (4) can be used to achieve the sealing function. The sealing mechanism (4) includes a mounting plate B (41) and a constricted portion (42) provided on one side of the mounting plate B (41). A sealing ring (43) is provided at the end of the constricted portion (42) away from the mounting plate B (41). A sealing gasket (44) is fitted on the inner wall of the sealing ring (43). A sealing coating (47) is provided on the side wall of both the mounting plate B (41) and the segmented connector body (1). A bolt (46) for fixing the mounting plate B (41) is also provided on the mounting plate B (41). The mounting plate B (41) can be fixed on the segmented connector body (1) by using the bolt (46).

2. The novel valve stem segmented connector according to claim 1, characterized in that: The outer walls of the first valve stem (2) and the second valve stem (3) are evenly distributed with threaded portions (21), which are used to make threaded connections with the segmented connector body (1).

3. The novel valve stem segmented connector according to claim 2, characterized in that: The segmented connector body (1) includes a center plate (14) and positioning holes (12) opened on the left and right side walls of the segmented connector body (1). Mounting holes (11) are opened on the surface of the segmented connector body (1), and positioning pins (13) are rotatably connected inside the mounting holes (11).

4. A novel valve stem segmented connector according to claim 3, characterized in that: The left and right sidewalls of the center plate (14) are coated with a wear-resistant layer (141). The wear-resistant layer (141) can reduce the friction between the first valve stem (2) and the center plate (14).

5. A novel valve stem segmented connector according to claim 4, characterized in that: The segmented connector body (1) is provided with mounting plates A (15) on its left and right outer walls respectively. Mounting plates A (15) are used in conjunction with the sealing mechanism (4).

6. A novel valve stem segmented connector according to claim 5, characterized in that: The sealing mechanism (4) also includes a positioning post (45) disposed on one side of the mounting plate B (41), the positioning post (45) being adapted to the positioning hole (12).

Images