Combined valve sleeve

Abstract

The utility model discloses a combined valve sleeve in the technical field of valve sleeves, which comprises a valve sleeve main body and connecting valve pipes, the connecting valve pipes are positioned on the front side and the rear side of the valve sleeve main body, annular grooves are arranged on the front side wall and the rear side wall of the valve sleeve main body, and sealing rings are fixedly connected on the inner side walls of inner cavities of the annular grooves on the front side and the rear side. The combined valve sleeve is reasonable in structural design, a connecting valve pipe can be fixed through a fixing tenon when a mounting plate is extruded through a reset spring, the sealing gaskets are arranged on the upper side and the lower side of the inner side wall of an inner cavity of the sealing rings on the front side and the rear side, and the sealing gaskets are arranged on the upper side and the lower side of the inner side of the valve sleeve body. The fixing clamping tenon can be pushed by the reset spring to fix the connecting valve pipe again after being affected by vibration, the sealing performance of the valve sleeve can be effectively improved, and flowing media in the valve sleeve are prevented from leaking.

Description

Technical Field

[0001] The utility model relates to the technical field of valve sleeves, in particular to a combined valve sleeve. Background Art

[0002] The valve sleeve is a component used in mechanical equipment, mainly used for sealing devices of mobile machinery. It is usually an annular sleeve-shaped part made of metal or non-metallic materials, installed on the piston, valve core or valve stem inside the engine, used for sealing or reducing wear on the equipment to ensure the normal operation of the equipment.

[0003] The existing combined valve sleeves are mostly connected by threaded connection during assembly. After long-term use, the threaded connection may become loose due to the vibration of the mechanical equipment. In addition, the sealing structure of the existing combined valve sleeve is relatively simple and cannot effectively seal the medium flowing in the valve sleeve. For this reason, we propose a combined valve sleeve. Utility Model Content

[0004] The utility model aims to provide a combined valve sleeve to solve the problem raised in the above background technology that the existing combined valve sleeves are mostly connected by threaded connection during assembly and connection, and the threaded connection may become loose due to the vibration of mechanical equipment after long-term use, and the existing combined valve sleeve sealing structure is relatively simple and cannot effectively seal the medium flowing in the valve sleeve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined valve sleeve, comprising a valve sleeve main body and a connecting valve tube, the connecting valve tube is located at the front and rear sides of the valve sleeve main body, the front and rear side walls of the valve sleeve main body are provided with annular grooves, the inner side walls of the inner cavity of the annular grooves on the front and rear sides are fixedly connected with sealing rings, the inner side walls of the inner cavity of the sealing rings on the front and rear sides are bonded with sealing gaskets on the upper and lower sides, the inner front and rear sides of the valve sleeve main body are provided with mounting grooves, the inner front and rear side walls of the inner cavity of the mounting grooves on the upper and lower sides are slidably connected with mounting plates, the inner side walls of the mounting plates on the upper and lower sides are fixedly connected with fixing tenons, and the fixing tenons are arranged in sequence from front to back.

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

[0007] The ends of the fixing tenons on the upper and lower sides pass through the installation grooves on the upper and lower sides and extend to the interior of the connecting valve pipe.

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

[0009] Threaded connecting rods are inserted into the front side and the upper and lower sides of the rear side of the outer side wall of the valve sleeve body.

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

[0011] The ends of the threaded connecting rods on the upper and lower sides penetrate the valve sleeve body and extend to the inner cavities of the mounting grooves on the upper and lower sides, and the ends of the threaded connecting rods on the upper and lower sides are rotatably connected to the mounting plates on the upper and lower sides.

[0012] As a further description of the above technical solution:

[0013] A return spring is sleeved on the outer side wall of the threaded connecting rod, and the return spring is located in the inner cavity of the installation groove.

[0014] As a further description of the above technical solution:

[0015] The inner side walls of the connecting valve tubes on the front and rear sides are fixedly connected with sealing insert rings, the inner side walls of the sealing insert rings on the front and rear sides extend to the inner cavity of the sealing rings, and the sealing insert rings are in contact with the sealing gaskets on the upper and lower sides.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. For the combined valve sleeve, when assembling the valve sleeve, the upper threaded connecting rod is pulled so that the threaded connecting rod drives the mounting plate to squeeze the reset spring, so that the fixing tenon at the bottom of the mounting plate moves into the mounting groove, and then the threaded connecting rod is rotated to connect the threaded connecting rod with the valve sleeve body, and then the above steps are repeated to fix the lower threaded connecting rod, and then the sealing insert ring on the connecting valve pipe is inserted into the sealing ring. After the insertion is in place, the upper and lower threaded connecting rods are rotated to reset the reset spring squeezed by the mounting plate, and the mounting plate is pushed to move so that the fixing tenon on the mounting plate extends into the connecting valve pipe to fix the connecting valve pipe, and then the above steps are repeated to fix the connecting valve pipe on the other side, so that the fixing tenon can be fixed to the connecting valve pipe when the reset spring squeezes the mounting plate, and the fixing tenon can be pushed by the reset spring to re-fix the connecting valve pipe after being affected by vibration.

[0018] 2. For the combined valve sleeve, after the connecting valve pipe is installed, the sealing insert ring on the connecting valve pipe contacts the sealing gasket in the sealing ring in the annular groove, and the sealing insert ring and the sealing gasket in the sealing ring are tightly fitted to effectively seal the gap between the connecting valve pipe and the valve sleeve body, thereby effectively improving the sealing performance of the valve sleeve and preventing leakage of the flowing medium in the valve sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a combined valve sleeve proposed by the utility model;

[0020] Figure 2This is a left-side sectional structural schematic diagram of a combined valve sleeve proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of a front cross-sectional structure of a combined valve sleeve proposed by the utility model;

[0022] Figure 4 A combined valve sleeve proposed by the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 100, valve sleeve body; 110, annular groove; 120, sealing ring; 121, sealing gasket; 130, mounting groove; 131, mounting plate; 132, fixing tenon; 140, threaded connecting rod; 141, return spring; 200, connecting valve pipe; 210, sealing insert ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0027] The utility model provides a combined valve sleeve, which can fix the connecting valve pipe by fixing the tenon when the mounting plate is squeezed by the reset spring, so that the fixing tenon can be pushed by the reset spring to fix the connecting valve pipe again after being affected by vibration, which can effectively improve the sealing performance of the valve sleeve and prevent the leakage of the flowing medium in the valve sleeve. Figure 1-4 , comprising a valve sleeve body 100 and a connecting valve pipe 200;

[0028] Please refer again Figure 1-3The valve sleeve body 100 is used to install the main structure. The front and rear side walls of the valve sleeve body 100 are provided with annular grooves 110. The annular grooves 110 are used to install the sealing rings 120. The inner side walls of the inner cavity of the annular grooves 110 on both sides of the front and rear sides are fixedly connected with sealing rings 120. The sealing rings 120 are used to install sealing gaskets 121. The inner side walls of the inner cavity of the sealing rings 120 on both sides of the front and rear sides are bonded with sealing gaskets 121 on the upper and lower sides. The sealing gaskets 121 are used to seal the sealing insert ring 210. The inner front side and the rear side of the valve sleeve body 100 are provided with mounting grooves 130 on the upper and lower sides. The mounting grooves 130 are used to install the mounting plate 131. The mounting grooves 130 on the upper and lower sides are provided with mounting plates 131. 0, a mounting plate 131 is slidably connected between the front and rear side walls of the inner cavity of the valve sleeve body 100, and the mounting plate 131 is used to install the fixing tenon 132. The inner walls of the upper and lower mounting plates 131 are fixedly connected with the fixing tenons 132, and the fixing tenons 132 are used to fix the valve pipe 200, and the fixing tenons 132 are arranged in sequence from front to back, and the ends of the fixing tenons 132 on the upper and lower sides pass through the upper and lower mounting grooves 130 and extend to the inside of the valve pipe 200. The front and rear sides of the outer wall of the valve sleeve body 100 are plugged with threaded connecting rods 140 on the upper and lower sides, and the threaded connecting rods 140 are used to connect the fixing tenons 132. The threaded connecting rods 140 on the upper and lower sides are connected. The end of the valve sleeve 40 passes through the valve sleeve body 100 and extends to the inner cavity of the upper and lower mounting grooves 130, and the ends of the upper and lower threaded connecting rods 140 are rotatably connected with the upper and lower mounting plates 131. The outer wall of the threaded connecting rod 140 is sleeved with a return spring 141, which is used to reset the mounting plate 131, and the return spring 141 is located in the inner cavity of the mounting groove 130. When the valve sleeve is assembled, the upper threaded connecting rod 140 is pulled so that the threaded connecting rod 140 drives the mounting plate 131 to squeeze the return spring 141, so that the fixing tenon 132 at the bottom of the mounting plate 131 moves to the mounting groove 1 30, then rotate the threaded connecting rod 140 to connect the threaded connecting rod 140 with the valve sleeve body 100, then repeat the above steps to fix the lower threaded connecting rod 140, then insert the sealing insert ring 210 on the connecting valve pipe 200 into the sealing ring 120, and after inserting into place, rotate the threaded connecting rods 140 on both sides to reset the return spring 141 squeezed by the mounting plate 131 to push the mounting plate 131 to move so that the fixing tenon 132 of the mounting plate 131 extends into the connecting valve pipe 200, fix the connecting valve pipe 200, and then repeat the above steps to fix the connecting valve pipe 200 on the other side;

[0029] In summary, the fixing tenon 132 can fix the connecting valve pipe 200 when the reset spring 141 squeezes the mounting plate 131, so that the fixing tenon 132 can be pushed by the reset spring 141 to fix the connecting valve pipe 200 again after being affected by vibration;

[0030] Please refer again Figure 1-4, the connecting valve pipe 200 is located at the front and rear sides of the valve sleeve body 100. Specifically, the connecting valve pipe 200 is plugged into the front and rear sides of the valve sleeve body 100 through the sealing insert ring 210. The inner side walls of the connecting valve pipe 200 at the front and rear sides are fixedly connected with the sealing insert ring 210. The inner side walls of the sealing insert rings 210 at the front and rear sides extend to the inner cavity of the sealing ring 120, and the sealing insert ring 210 is in contact with the sealing gaskets 121 at the upper and lower sides. After the connecting valve pipe 200 is installed, the sealing insert ring 210 on the connecting valve pipe 200 is in contact with the sealing gasket 121 in the sealing ring 120 located in the annular groove 110. The sealing insert ring 210 is tightly fitted with the sealing gasket 121 in the sealing ring 120 to effectively seal the gap between the connecting valve pipe 200 and the valve sleeve body 100.

[0031] In summary, the sealing performance of the valve sleeve can be effectively improved to prevent leakage of the flowing medium in the valve sleeve;

[0032] In specific use, when assembling the valve sleeve, the technicians in this technical field pull the upper threaded connecting rod 140 to drive the mounting plate 131 to squeeze the reset spring 141, so that the fixing tenon 132 at the bottom of the mounting plate 131 moves into the mounting groove 130, and then rotate the threaded connecting rod 140 to connect the threaded connecting rod 140 with the valve sleeve body 100, and then repeat the above steps to fix the lower threaded connecting rod 140, and then insert the sealing insert ring 210 on the connecting valve pipe 200 into the sealing ring 120. After the insertion is in place, the threaded connecting rods 140 on the upper and lower sides are rotated to make the mounting plate 131 be fixed. The reset spring 141 is reset by the compression to push the mounting plate 131 to move so that the fixing tenon 132 of the mounting plate 131 extends into the connecting valve pipe 200 to fix the connecting valve pipe 200. Then, the above steps are repeated to fix the connecting valve pipe 200 on the other side. After the connecting valve pipe 200 is installed, the sealing insert ring 210 on the connecting valve pipe 200 contacts the sealing gasket 121 in the sealing ring 120 in the annular groove 110. The sealing insert ring 210 and the sealing gasket 121 in the sealing ring 120 are tightly fitted to effectively seal the gap between the connecting valve pipe 200 and the valve sleeve body 100.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A combined valve sleeve, characterized in that: The valve sleeve body (100) comprises a valve sleeve main body (100) and a connecting valve pipe (200), wherein the connecting valve pipe (200) is located at the front and rear sides of the valve sleeve main body (100), the front and rear side walls of the valve sleeve main body (100) are provided with annular grooves (110), the inner side walls of the inner cavity of the annular grooves (110) on the front and rear sides are fixedly connected with sealing rings (120), the inner side walls of the inner cavity of the sealing rings (120) on the front and rear sides are bonded with sealing gaskets (121) on the upper and lower sides, the inner front side and rear side of the valve sleeve main body (100) are provided with mounting grooves (130), the inner front and rear side walls of the inner cavity of the mounting grooves (130) on the upper and lower sides are slidably connected with mounting plates (131), the inner side walls of the mounting plates (131) on the upper and lower sides are fixedly connected with fixing tenons (132), and the fixing tenons (132) are arranged in sequence from front to back.

2. A combined valve sleeve according to claim 1, characterized in that: The ends of the fixing tenons (132) on the upper and lower sides pass through the installation grooves (130) on the upper and lower sides and extend to the interior of the connecting valve pipe (200).

3. A combined valve sleeve according to claim 1, characterized in that: Threaded connecting rods (140) are inserted into the upper and lower sides of the front and rear sides of the outer wall of the valve sleeve body (100).

4. A combined valve sleeve according to claim 3, characterized in that: The ends of the threaded connecting rods (140) on the upper and lower sides pass through the valve sleeve body (100) and extend to the inner cavities of the installation grooves (130) on the upper and lower sides, and the ends of the threaded connecting rods (140) on the upper and lower sides are rotatably connected to the installation plates (131) on the upper and lower sides.

5. A combined valve sleeve according to claim 4, characterized in that: A return spring (141) is sleeved on the outer side wall of the threaded connecting rod (140), and the return spring (141) is located in the inner cavity of the installation groove (130).

6. A combined valve sleeve according to claim 1, characterized in that: The inner side walls of the connecting valve tube (200) on the front and rear sides are fixedly connected with sealing insert rings (210), the inner side walls of the sealing insert rings (210) on the front and rear sides extend to the inner cavity of the sealing ring (120), and the sealing insert ring (210) is in contact with the sealing gaskets (121) on the upper and lower sides.

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