High-temperature plunger regulating valve

Abstract

The high-temperature plunger regulating valve comprises a valve body and a dismounting mechanism, a valve rod is arranged in the valve body, and one end of the valve rod penetrates through and extends to the outer side of the valve body; the dismounting mechanism comprises a lower valve cover arranged at the bottom of the valve body, a sliding rod is fixedly installed in the lower valve cover, two sliding plates are slidably connected to the outer side of the sliding rod, a spring is fixedly installed between the two sliding plates, and a connecting rod is fixedly installed on the opposite sides of the two sliding plates. And movable rods are fixedly mounted at the ends, away from the sliding plates, of the connecting rods, and clamping blocks are fixedly mounted on the opposite sides of the two movable rods. According to the high-temperature plunger regulating valve, by arranging the dismounting mechanism and rotating the rotating block, the two sliding plates can be moved towards the opposite sides, the clamping block is moved to the outer portion of the clamping groove, the purpose of rapidly dismounting the valve cover is achieved, the interior of the valve body is conveniently cleaned or overhauled, meanwhile, by arranging a sealing gasket, a sealing block and a sealing ring, the sealing effect is good, and the sealing effect is good. And the sealing performance of the plunger regulating valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a high-temperature plunger regulating valve. Background Art

[0002] The plunger valve is composed of a valve body, a valve cover, a valve stem, a plunger, a hole rack, a sealing ring, a handwheel and other parts. When the handwheel rotates, the valve stem drives the plunger to reciprocate up and down in the middle of the hole rack to complete the opening and closing functions of the valve. An interference fit is adopted between the plunger and the sealing ring in the valve. By adjusting the flange bolts in the gland, the lateral force generated by the compression of the sealing ring is sealed with the hole surface in the valve body and the outer circle of the plunger, thereby ensuring the sealing of the valve and eliminating internal and external leakage. At the same time, the valve opening torque is small, and the valve can be opened and closed quickly. Compared with the stop valve, the plunger valve has a long service life and is labor-saving to operate. Some plunger valves have high temperature resistance to suit specific occasions.

[0003] According to the Chinese patent CN216951954U, a plunger-type regulating valve is disclosed, which includes a valve body, a valve stem, a bushing, a valve stem connector, a ceramic valve seat sleeve, a ceramic plunger and a V-shaped through hole. The ceramic valve seat sleeve, the ceramic plunger and the valve cavity and the channel in the valve body are lined with ceramics, which can improve the wear and corrosion resistance of the valve body to oil and the like, improve the service life of the regulating valve as a whole, save maintenance costs, adjust the opening size of the V-shaped through hole on the ceramic valve seat sleeve, and adjust the flow rate of oil to an equal percentage, thereby improving the transmission effect of oil, and even The connection area is connected to the external pneumatic actuator or electric actuator, and can facilitate the adjustment and control of the valve stem. The ceramic valve seat sleeve and the ceramic plunger adopt a plunger structure design, and the two are closely matched to achieve a vacuum sealing effect. However, the lower valve cover is connected to the valve body by bolts and nuts. When the valve cover is removed to clean or repair the valve body, it is necessary to use a tool to rotate the nut and then remove the lower valve cover. The process of removing the lower valve cover is time-consuming and laborious, and the practicality is not high when used. Therefore, a high-temperature plunger regulating valve is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-temperature plunger regulating valve, which has the advantages of convenient disassembly of the lower valve cover, etc., and solves the problem that the lower valve cover is connected to the valve body by bolts and nuts, and when the valve cover is removed to clean or repair the valve body, it is necessary to use a tool to turn the nut and then remove the lower valve cover. The process of removing the lower valve cover is time-consuming and labor-intensive, and the practicality is not high during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature plunger regulating valve, comprising a valve body and a disassembly mechanism, wherein a valve stem having one end penetrating through and extending to the outside of the valve body is arranged inside the valve body;

[0006] The disassembly mechanism includes a lower valve cover arranged at the bottom of the valve body, a sliding rod is fixedly installed inside the lower valve cover, two slide plates are slidably connected to the outer side of the sliding rod, a spring is fixedly installed between the two slide plates, a connecting rod is fixedly installed on the opposite sides of the two slide plates, a movable rod is fixedly installed on the end of the connecting rod away from the slide plate, and a clamping block is fixedly installed on the opposite sides of the two movable rods, a rotating rod with one end passing through and extending to the bottom of the lower valve cover is arranged inside the lower valve cover, and two adjusting blocks are fixedly installed on the outer side of the rotating rod.

[0007] Furthermore, a sealing gasket abutting against the bottom of the valve body is fixedly mounted on the top of the lower valve cover, and the slide plate is slidably connected to the inner wall of the lower valve cover.

[0008] Furthermore, the spring is sleeved with the slide rod, and movable grooves matching the size of the movable rod are provided on both left and right sides of the top of the lower valve cover, and one end of the connecting rod passes through the lower valve cover and extends to the inside of the movable groove.

[0009] Furthermore, the outer side of the connecting rod is slidably connected to the inner wall of the valve body, and the front and back sides of the movable rod are both in contact with the inner wall of the valve body.

[0010] Furthermore, two slots are provided on the outer side of the valve body, and one end of the block away from the movable rod penetrates and extends into the slots. A bearing movably connected to the rotating rod is fixedly installed inside the lower valve cover.

[0011] Furthermore, one side opposite to the two slide plates is in contact with the adjusting block, and a rotating block is fixedly mounted on the bottom of the rotating rod for facilitating the rotation of the rotating rod.

[0012] Furthermore, a sealing block having one end penetrating through and extending to the inner side of the valve body is fixedly installed on the top of the lower valve cover, a sealing groove is opened at the bottom of the valve body, and a sealing ring matching the size of the sealing groove is fixedly installed on the top of the lower valve cover.

[0013] Furthermore, the sealing block is fitted with the inner wall of the valve body, and the sealing ring is located inside the sealing groove and is slidably connected with the valve body through the sealing groove.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The high-temperature plunger regulating valve is provided with a disassembly mechanism. By rotating the rotating block, the two slides can be moved to the opposite sides and the clamping block can be moved to the outside of the clamping groove, so as to achieve the purpose of quickly removing the valve cover and facilitate cleaning or maintenance of the interior of the valve body. At the same time, by providing a sealing gasket, a sealing block and a sealing ring, the sealing performance of the plunger regulating valve is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 3 This is a schematic cross-sectional view of the slide plate and the rotating rod of the utility model.

[0019] Figure 4 This is a schematic diagram of the lower valve cover structure of the utility model.

[0020] In the figure: 1 valve body, 2 valve stem, 3 lower valve cover, 4 sliding rod, 5 slide plate, 6 spring, 7 connecting rod, 8 movable rod, 9 clamping block, 10 rotating rod, 11 adjusting block, 12 movable groove, 13 clamping groove, 14 rotating block, 15 sealing block, 16 sealing ring. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 A high-temperature plunger regulating valve in this embodiment includes a valve body 1 and a disassembly mechanism. A valve stem 2 is arranged inside the valve body 1 and has one end penetrating through and extending to the outside of the valve body 1. The valve body 1 is made of high-temperature resistant material, so that the valve body 1 has high-temperature performance, which facilitates the opening and closing functions of the valve through the valve stem 2.

[0023] The disassembly mechanism includes a lower valve cover 3 arranged at the bottom of the valve body 1, a slide rod 4 is fixedly installed inside the lower valve cover 3, two slide plates 5 are slidably connected to the outside of the slide rod 4, a spring 6 is fixedly installed between the two slide plates 5, a connecting rod 7 is fixedly installed on the opposite side of the two slide plates 5, a movable rod 8 is fixedly installed on the end of the connecting rod 7 away from the slide plate 5, and a clamping block 9 is fixedly installed on the opposite side of the two movable rods 8, a rotating rod 10 with one end penetrating and extending to the bottom of the lower valve cover 3 is arranged inside the lower valve cover 3, and a number of Two adjusting blocks 11, a sealing gasket abutting the bottom of the valve body 1 is fixedly installed on the top of the lower valve cover 3, the slide plate 5 is slidably connected to the inner wall of the lower valve cover 3, and the left and right sides of the top of the lower valve cover 3 are provided with movable grooves 12 adapted to the size of the movable rod 8. One end of the connecting rod 7 passes through the lower valve cover 3 and extends to the inside of the movable groove 12. The outer side of the connecting rod 7 is slidably connected to the inner wall of the valve body 1, and the front and back sides of the movable rod 8 are both in contact with the inner wall of the valve body 1. Two card slots 13 are provided on the outer side of the valve body 1 to ensure that the movable rod 8 is stable in the movable groove 12 The movable rod 8 is prevented from flipping and shaking. When installing the lower valve cover 3, the block 9 is conveniently aligned with the slot 13. The end of the block 9 away from the movable rod 8 penetrates and extends into the slot 13. The spring 6 is sleeved with the slide bar 4. The spring 6 applies a pulling force to the two slide plates 5 to facilitate the reset of the block 9, so that one end of the block 9 is stabilized with the inside of the slot 13, so that the lower valve cover 3 remains stable. A bearing movably connected to the rotating rod 10 is fixedly installed inside the lower valve cover 3. The opposite sides of the two slide plates 5 abut against the adjusting block 11, and the bottom of the rotating rod 10 A rotating block 14 is fixedly installed for facilitating the rotation of the rotating rod 10, so that when the rotating block 14 is rotated, the adjusting block 11 is driven to rotate. When the adjusting block 11 rotates, it can push the two slides 5 to move to the opposite side. A sealing block 15 with one end penetrating and extending to the inner side of the valve body 1 is fixedly installed on the top of the lower valve cover 3. A sealing groove is provided at the bottom of the valve body 1. A sealing ring 16 matched with the size of the sealing groove is fixedly installed on the top of the lower valve cover 3. The sealing block 15 fits against the inner wall of the valve body 1, and the sealing ring 16 is located inside the sealing groove and is slidably connected to the valve body 1 through the sealing groove.

[0024] It should be noted that, by setting up a disassembly mechanism and rotating the rotating block 14, the two slides 5 can be moved to the opposite side, and the clamping block 9 can be moved to the outside of the clamping groove 13, so as to achieve the purpose of quickly removing the valve cover 3, and facilitate cleaning or maintenance of the interior of the valve body 1. At the same time, by setting a sealing gasket, a sealing block 15 and a sealing ring 16, the sealing performance of the plunger regulating valve is improved.

[0025] The working principle of the above embodiment is as follows: when the lower valve cover 3 needs to be removed, the rotating block 14 is rotated to drive the rotating rod 10 to rotate, and then the adjusting block 11 is driven to rotate. When the adjusting block 11 rotates, it drives the two slide plates 5 to move to the opposite side. While moving, the slide plate 5 pushes the connecting rod 7 and the movable rod 8 to move, and then drives the clamping block 9 to move to the outside of the clamping groove 13, and then the lower valve cover 3 can be pulled to remove the lower valve cover 3. Conversely, when installing the lower valve cover 3, the rotating block 14 is rotated to move the two slide plates 5 to the opposite side, align the sealing ring 16 with the sealing groove, insert the sealing ring 16 into the sealing groove, move the lower valve cover 3 to make the sealing gasket abut against the valve body 1, loosen the rotating block 14, and move the two slide plates 5 to the opposite side through the spring 6, so that the clamping block 9 is inserted into the clamping groove 13, and the installation of the lower valve cover 3 can be completed.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-temperature plunger regulating valve, comprising a valve body (1) and a disassembly mechanism, characterized in that: The valve body (1) is provided with a valve stem (2) having one end penetrating through and extending to the outside of the valve body (1); The disassembly mechanism comprises a lower valve cover (3) arranged at the bottom of the valve body (1), a sliding rod (4) is fixedly installed inside the lower valve cover (3), two slide plates (5) are slidably connected to the outer side of the sliding rod (4), a spring (6) is fixedly installed between the two slide plates (5), a connecting rod (7) is fixedly installed on the opposite sides of the two slide plates (5), a movable rod (8) is fixedly installed on the end of the connecting rod (7) away from the slide plate (5), and a clamping block (9) is fixedly installed on the opposite side of the two movable rods (8), and a rotating rod (10) with one end penetrating and extending to the bottom of the lower valve cover (3) is arranged inside the lower valve cover (3), and two adjusting blocks (11) are fixedly installed on the outer side of the rotating rod (10).

2. A high temperature plunger regulating valve according to claim 1, characterized in that: A sealing gasket abutting against the bottom of the valve body (1) is fixedly mounted on the top of the lower valve cover (3), and the slide plate (5) is slidably connected to the inner wall of the lower valve cover (3).

3. A high temperature plunger regulating valve according to claim 1, characterized in that: The spring (6) is sleeved with the slide rod (4), and movable grooves (12) matching the size of the movable rod (8) are provided on both left and right sides of the top of the lower valve cover (3), and one end of the connecting rod (7) passes through the lower valve cover (3) and extends to the inside of the movable groove (12).

4. A high temperature plunger regulating valve according to claim 1, characterized in that: The outer side of the connecting rod (7) is slidably connected to the inner wall of the valve body (1), and the front and back sides of the movable rod (8) are both in contact with the inner wall of the valve body (1).

5. A high temperature plunger regulating valve according to claim 1, characterized in that: Two retaining grooves (13) are provided on the outer side of the valve body (1), and one end of the retaining block (9) away from the movable rod (8) penetrates and extends into the interior of the retaining groove (13). A bearing movably connected to the rotating rod (10) is fixedly installed inside the lower valve cover (3).

6. A high temperature plunger regulating valve according to claim 1, characterized in that: The opposite sides of the two slide plates (5) are in contact with the adjustment block (11), and a rotating block (14) is fixedly mounted on the bottom of the rotating rod (10) for facilitating the rotation of the rotating rod (10).

7. A high temperature plunger regulating valve according to claim 1, characterized in that: A sealing block (15) having one end penetrating through and extending to the inner side of the valve body (1) is fixedly mounted on the top of the lower valve cover (3); a sealing groove is provided at the bottom of the valve body (1); and a sealing ring (16) having a size matching that of the sealing groove is fixedly mounted on the top of the lower valve cover (3).

8. A high temperature plunger regulating valve according to claim 7, characterized in that: The sealing block (15) is fitted with the inner wall of the valve body (1), and the sealing ring (16) is located inside the sealing groove and is slidably connected to the valve body (1) through the sealing groove.

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