Valve rod protective cover of working pressure regulating valve

Abstract

The utility model relates to the technical field of pressure regulating valve rod protection covers, in particular to a working pressure regulating valve rod protection cover. The utility model provides a valve rod protective cover of a working pressure regulating valve, which can be used for conveniently overhauling a valve rod of the pressure regulating valve after the protective cover is arranged. A valve rod protection cover of a working pressure regulating valve comprises a first protection cover, a second protection cover, a supporting frame and the like, the second protection cover is arranged on the front side of the first protection cover, and the supporting frame is connected to the front side of the lower portion of the second protection cover. The first protective cover and the second protective cover are fixed through the mounting ring, the first protective cover and the second protective cover can be rotatably opened and closed by matching with the sliding frame and the fixing block, and the maintenance cover plate is arranged on the second protective cover. And after the protective cover is arranged, the valve rod of the pressure regulating valve can still be conveniently overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of a valve stem protection cover for a pressure regulating valve, in particular to a valve stem protection cover for a working pressure regulating valve. Background Art

[0002] The stem protection cover of the pressure regulating valve is a device used to protect the stem (also called valve stem or valve shaft) of the pressure regulating valve, which is usually installed on the outside of the pressure regulating valve. The main purpose of the existing device is to prevent corrosion and damage to the valve stem caused by external environmental factors, while providing an additional layer of protection to ensure the normal operation of the pressure regulating valve.

[0003] However, after the existing device is installed, it is inconvenient to perform maintenance operations on the valve stem of the pressure regulating valve. During maintenance, the protective cover needs to be disassembled again, and then the protective cover needs to be reinstalled after the maintenance is completed. The operation is too cumbersome and inconvenient.

[0004] Therefore, a working pressure regulating valve stem protective cover has been developed which can facilitate maintenance operations on the valve stem of the pressure regulating valve even after the protective cover is set. Utility Model Content

[0005] In order to overcome the disadvantage that it is inconvenient to perform maintenance operations on the valve stem of the pressure regulating valve after the existing device is installed, the protective cover needs to be removed again during maintenance, and the protective cover needs to be reinstalled after the maintenance is completed, which is an overly cumbersome and inconvenient operation, the utility model provides a working pressure regulating valve stem protective cover that can facilitate maintenance operations on the valve stem of the pressure regulating valve after the protective cover is set.

[0006] Technical solution: A working pressure regulating valve stem protective cover, comprising a first protective cover, a second protective cover, a support frame, a rotating block, an inspection cover and a mounting mechanism, wherein the second protective cover is provided on the front side of the first protective cover, the front side of the lower part of the second protective cover is connected to the support frame, the rotating block is rotatably connected to the support frame, the lower part of the rotating block is connected to the inspection cover, and the mounting mechanism for easy installation is provided between the tops of the first protective cover and the second protective cover.

[0007] In a preferred embodiment of the present invention, the first protective cover and the second protective cover are both transparent acrylic plates.

[0008] In a preferred embodiment of the utility model, the mounting mechanism includes a mounting ring, a fixing assembly, a guide rod, a sliding frame and a fixing block, a plurality of the mounting rings are connected between the tops of the first protective cover and the second protective cover, the fixing assembly is provided between the front and rear parts of the mounting ring, the right side of the mounting ring on the right part is connected to the guide rod, the sliding frame is slidably connected to the guide rod, the first protective cover and the second protective cover are both connected to the fixing block on the right side of the upper part, the fixing blocks are rotatably connected to the sliding frame, the first protective cover and the second protective cover are both rotatably opened and closed on the sliding frame by the fixing block, and can slide on the guide rod by the sliding frame, adjusting the protection position and adapting the valve stem position of the pressure regulating valve to facilitate opening the first protective cover and the second protective cover, the mounting ring and the fixing assembly cooperate to be connected and fixed to the valve body of the pressure regulating valve, thereby facilitating the installation of the first protective cover and the second protective cover.

[0009] In a preferred embodiment of the utility model, the fixing assembly includes a screw and a nut, a screw is provided between the front and rear parts of the mounting ring, a nut is threadedly connected to the screw, and the nut is extruded and matched with the mounting ring.

[0010] In a preferred embodiment of the utility model, it also includes a locking mechanism, the locking mechanism includes a guide block, a first locking rod, an elastic member, a paddle and a second locking rod, the first protective cover and the second protective cover are both connected to the left side of the guide block, the first locking rod is slidably connected to the front guide block, an elastic member is connected between the first locking rod and the adjacent guide block, the paddle is connected to the top of the first locking rod, the second locking rod is connected to the lower rear side of the paddle, the second locking rod is engaged with the adjacent guide block, the paddle is pulled upward to bring the second locking rod out of the rear guide block, so that the first protective cover and the second protective cover can be rotated to open, and when the paddle controls the second locking rod to engage with the rear guide block, the first protective cover and the second protective cover can be locked.

[0011] In a preferred embodiment of the present invention, the elastic member is a linear spring.

[0012] Beneficial effects: The utility model fixes the first protective cover and the second protective cover by means of a mounting ring, cooperates with the sliding frame and the fixing block to enable the first protective cover and the second protective cover to be rotated to open and close, and an inspection cover is arranged on the second protective cover, so that the valve stem of the pressure regulating valve can still be easily inspected after the protective cover is arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the installation mechanism of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the locking mechanism of the utility model.

[0017] Among them, the above-mentioned drawings include the following figure marks: 1-first protective cover, 2-second protective cover, 3-support frame, 4-rotating block, 5-inspection cover, 6-installation mechanism, 61-installation ring, 62-fixing assembly, 63-guide rod, 64-sliding frame, 65-fixing block, 7-locking mechanism, 71-guide block, 72-first locking rod, 73-linear spring, 74-paddle, 75-second locking rod. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the protection scope and application scope of the present invention are not limited.

[0019] A working pressure regulating valve stem protective cover, such as Figure 1 and Figure 2 As shown, it includes a first protective cover 1, a second protective cover 2, a support frame 3, a rotating block 4, an inspection cover 5 and a mounting mechanism 6. The second protective cover 2 is provided on the front side of the first protective cover 1, the front side of the lower part of the second protective cover 2 is connected to the support frame 3, the rotating block 4 is rotatably connected to the support frame 3, and the lower part of the rotating block 4 is connected to the inspection cover 5. The first protective cover 1 and the second protective cover 2 are both transparent acrylic plates, and the mounting mechanism 6 is provided between the tops of the first protective cover 1 and the second protective cover 2.

[0020] like Figure 1 and Figure 3 As shown, the mounting mechanism 6 includes a mounting ring 61, a fixing assembly 62, a guide rod 63, a sliding frame 64 and a fixing block 65. A plurality of the mounting rings 61 are connected between the top of the first protective cover 1 and the second protective cover 2. The fixing assembly 62 is provided between the front and rear parts of the mounting ring 61. The fixing assembly 62 includes a screw and a nut. A screw is provided between the front and rear parts of the mounting ring 61. Nuts are threadedly connected to the screws, and the nuts are extruded and fitted with the mounting ring 61. The right side of the mounting ring 61 is connected to the guide rod 63, and the sliding frame 64 is slidably connected to the guide rod 63. The fixing blocks 65 are connected to the right sides of the upper parts of the first protective cover 1 and the second protective cover 2, and the fixing blocks 65 are rotatably connected to the sliding frame 64.

[0021] like Figure 1 and Figure 4 As shown, it also includes a locking mechanism 7, which includes a guide block 71, a first locking rod 72, a linear spring 73, a paddle 74 and a second locking rod 75. The first protective cover 1 and the second protective cover 2 are both connected to the guide block 71 on the left side, the first locking rod 72 is slidably connected to the front guide block 71, a linear spring 73 is connected between the first locking rod 72 and the adjacent guide block 71, the paddle 74 is connected to the top of the first locking rod 72, the rear lower side of the paddle 74 is connected to the second locking rod 75, and the second locking rod 75 is clamped with the adjacent guide block 71.

[0022] When the utility model is in use, the first protective cover 1 and the second protective cover 2 are first installed on the valve body of the pressure regulating valve through the cooperation of the mounting ring 61 and the fixing assembly 62. The valve stem of the pressure regulating valve is located in the first protective cover 1 and the second protective cover 2. When inspecting, the inspection cover 5 can be rotated to open. The first protective cover 1 and the second protective cover 2 are both rotated on the sliding frame 64 through the fixing block 65 to open and close, and can slide on the guide rod 63 through the sliding frame 64. It is convenient to adjust the protection position and adapt the position of the valve stem of the pressure regulating valve to open the first protective cover 1 and the second protective cover 2. When opening and closing the first protective cover 1 and the second protective cover 2, it is necessary to control the paddle 74, pull the paddle 74 upward to bring the second locking rod 75 out of the rear guide block 71, so that the first protective cover 1 and the second protective cover 2 can be rotated to open, and when the paddle 74 controls the second locking rod 75 to engage with the rear guide block 71, the first protective cover 1 and the second protective cover 2 can be locked.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A working pressure regulating valve stem protective cover, characterized in that it includes The invention comprises a first protective cover (1), a second protective cover (2), a support frame (3), a rotating block (4), an inspection cover plate (5) and a mounting mechanism (6); the second protective cover (2) is arranged on the front side of the first protective cover (1); the front side of the lower part of the second protective cover (2) is connected to the support frame (3); the rotating block (4) is rotatably connected to the support frame (3); the lower part of the rotating block (4) is connected to the inspection cover plate (5); and the mounting mechanism (6) for easy installation is arranged between the tops of the first protective cover (1) and the second protective cover (2).

2. A stem protective cover for a working pressure regulating valve according to claim 1, characterized in that: The first protective cover (1) and the second protective cover (2) are both transparent acrylic plates.

3. A stem protective cover for a working pressure regulating valve according to claim 2, characterized in that: The mounting mechanism (6) comprises a mounting ring (61), a fixing assembly (62), a guide rod (63), a sliding frame (64) and a fixing block (65); a plurality of the mounting rings (61) are connected between the tops of the first protective cover (1) and the second protective cover (2); the fixing assembly (62) is provided between the front and rear parts of the mounting ring (61); the right side of the mounting ring (61) is connected to the guide rod (63); the sliding frame (64) is slidably connected to the guide rod (63); the fixing block (65) is connected to the right side of the upper part of the first protective cover (1) and the second protective cover (2); The fixed blocks (65) are rotatably connected to the sliding frame (64); the first protective cover (1) and the second protective cover (2) are both rotatably opened and closed on the sliding frame (64) through the fixed blocks (65), and can slide on the guide rod (63) through the sliding frame (64); the first protective cover (1) and the second protective cover (2) are conveniently opened by adjusting the protection position and adapting the position of the valve stem of the pressure regulating valve; the mounting ring (61) and the fixing assembly (62) cooperate to be connected and fixed to the valve body of the pressure regulating valve, thereby facilitating the installation of the first protective cover (1) and the second protective cover (2).

4. A stem protective cover for a working pressure regulating valve according to claim 3, characterized in that: The fixing assembly (62) comprises a screw and a nut. A screw is provided between the front and rear parts of the mounting ring (61). Nuts are threadedly connected to the screws. The nuts are pressed and matched with the mounting ring (61).

5. A stem protective cover for a working pressure regulating valve according to claim 4, characterized in that: The invention also comprises a locking mechanism (7), wherein the locking mechanism (7) comprises a guide block (71), a first locking rod (72), an elastic member, a paddle (74) and a second locking rod (75), wherein the left sides of the first protective cover (1) and the second protective cover (2) are both connected to the guide block (71), the first locking rod (72) is slidably connected to the front guide block (71), an elastic member is connected between the first locking rod (72) and the adjacent guide block (71), and the paddle (74) is connected to the top of the first locking rod (72). The lower rear side of the paddle (74) is connected to the second locking rod (75), and the second locking rod (75) is engaged with the adjacent guide block (71). The paddle (74) is pulled upward to bring the second locking rod (75) out of the guide block (71) at the rear, so that the first protective cover (1) and the second protective cover (2) can be rotated to open. When the paddle (74) controls the second locking rod (75) to engage with the guide block (71) at the rear, the first protective cover (1) and the second protective cover (2) can be locked.

6. A stem protective cover for a working pressure regulating valve according to claim 5, characterized in that: The elastic member is a linear spring (73).

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