A buffer device for pressure testing of small-caliber valves

Abstract

The utility model relates to the technical field of small-caliber valves, and discloses a buffer device for pressure testing of small-caliber valves, the buffer device for pressure testing of small-caliber valves comprising a connecting plate, a telescopic column, a connecting column, a connecting ring, a buffer pad, a connecting groove, a fixing device, a polyester microfiber layer, a natural cotton fiber layer, and a natural bamboo fiber layer, the telescopic column is movably connected to the left end of the connecting plate, the connecting column is fixedly connected to the left end of the telescopic column, the connecting ring is fixedly connected to the left end of the connecting column, and the buffer pad is fixedly connected to the left end of the connecting ring. The buffer device for pressure testing of small-caliber valves improves the buffer connection capacity of the buffer device through improvements to the buffer device, and in the actual use of the buffer device, the small-caliber valve can be conveniently and quickly connected for buffering as needed, which reduces the buffer capacity of the small-caliber valve pressure test and improves the user experience of the buffer device for pressure testing of small-caliber valves.

Description

Technical Field

[0001] The utility model relates to the technical field of small-caliber valves, in particular to a buffer device used for pressure testing of small-caliber valves. Background Art

[0002] Small-diameter valves are special valve devices for power stations. They are mainly used in pipelines of various systems in thermal power stations to cut off or connect pipeline media. The buffer device used for pressure testing of small-diameter valves is a buffer device used for pressure testing of small-diameter valves.

[0003] The prior art patent document with publication number CN210135296U discloses a small-diameter valve, which also includes a valve disc and a valve stem that drives the valve disc to perform lifting or rotating motion, the valve disc and one end of the valve stem that fixes the valve disc both extend into the inner cavity of the valve body. In the above-mentioned small-diameter valve, a hard alloy is welded on the valve disc to form a sealing pair with the outer wall surface of the valve seat. The above-mentioned small-diameter valve also includes a valve cover fixed to the upper opening of the middle cavity of the valve body, one end of the valve stem that is used to fix the valve disc extends into the inner cavity of the valve body through the valve cover, a sealing packing assembly is arranged between the valve stem and the valve cover; a pressing plate that is sleeved outside the valve stem and pressed against the sealing packing assembly and connected to the valve cover through a fastener; and a pressing plate that is sleeved outside the fastener and clamped between the pressing plate and the fastener. a first elastic member between the locking members, the first elastic member applies a pre-tightening force to the pressure plate in the direction of the sealing packing assembly, the above-mentioned small-diameter valve also includes a stem nut fitted on the outer periphery of the valve stem, the stem nut is driven by the driving mechanism to drive the valve stem to perform the lifting or rotating movement; a radially protruding first flange is provided on the outer wall surface of the stem nut; and bearings are sleeved outside the stem nut and are respectively distributed on both sides of the first flange, the other end of the bearing away from the first flange abuts on other components adjacent to the bearing, the above-mentioned small-diameter valve also includes a second elastic member; the second elastic member is sleeved on the stem nut and is located above all the bearings, the second elastic member applies a pre-tightening force to the stem nut in the direction of the valve seat, including a valve body and two separate connecting parts. Among them, the two valve seats are respectively fixed on the end faces of the first ends of the two connecting parts, and the two connecting parts are respectively provided with a liquid inlet channel and a liquid outlet channel, and the valve body has an inner cavity and an inlet end and an outlet end connected to the inner cavity; the first ends of the two connecting parts are respectively sealed and inserted in the inlet end and the outlet end and extend into the inner cavity of the valve body, and the valve seat is integrally fixed on the end face of the first end of the connecting part. When the valve is subjected to alternating high and low temperatures, the formed integral valve seat will not cause leakage due to deformation and loosening of the valve seat; the valve seat and the connecting part form a whole, and the integral valve seat structure is equivalent to a thickened valve seat. The deformation of the valve seat affected by high temperature is much smaller than the deformation of the thin valve seat in the prior art, so that the valve seat has good sealing performance even at high temperatures.

[0004] However, in the prior art patent CN210135296U, due to the poor buffer connection ability of a small-diameter valve, the small-diameter valve cannot be conveniently and quickly buffer-connected as needed during the actual use of the small-diameter valve, and the buffer capacity of the small-diameter valve pressure test cannot be reduced, which affects the user experience of the small-diameter valve. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a buffer device for pressure testing of small-diameter valves, so as to solve the problem of poor buffer connection ability of small-diameter valves proposed in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer device for pressure testing of small-diameter valves, the buffer device for pressure testing of small-diameter valves comprising a connecting plate, a telescopic column, a connecting column, a connecting ring, a buffer pad, a connecting groove, a fixing device, a polyvinyl alcohol fiber layer, a polyester microfiber layer, a natural cotton fiber layer, a natural bamboo fiber layer, a polyester bulked fiber layer, a small-diameter valve, a connecting valve, a fixing platform, a connecting plate, a fixing nut, a movable shaft and a control knob, the telescopic column is movably connected to the left end of the connecting plate, the connecting column is fixedly connected to the left end of the telescopic column, the connecting ring is fixedly connected to the left end of the connecting column, the buffer pad is fixedly connected to the left end of the connecting ring, the connecting groove is fixedly connected to the left end of the connecting ring, and the fixing device is fixedly connected to the upper end of the connecting ring.

[0009] Preferably, the polyvinyl alcohol fiber layer is fixedly connected to the right end of the buffer pad, and the polyester microfiber layer is fixedly connected to the right end of the polyvinyl alcohol fiber layer. By improving the buffer device, the buffer connection capacity of the buffer device is improved. During the actual use of the buffer device, the small-diameter valve can be conveniently and quickly buffered and connected as needed, which reduces the buffer capacity of the small-diameter valve pressure test and improves the use experience of the buffer device used for the small-diameter valve pressure test.

[0010] Preferably, the natural cotton fiber layer is fixedly connected to the right end of the polyester microfiber layer, and the natural bamboo fiber layer is fixedly connected to the right end of the natural cotton fiber layer. The installation of connecting columns, connecting rings, buffer pads, connecting grooves, and fixing devices facilitates the connection and fixation of the buffer device for pressure testing of small-caliber valves. Then, the installation of the polyvinyl alcohol fiber layer, polyester microfiber layer, natural cotton fiber layer, natural bamboo fiber layer, and polyester bulked fiber layer facilitates the use of the buffer device for pressure testing of small-caliber valves.

[0011] Preferably, the polyester bulked fiber layer is fixedly connected to the right end of the natural bamboo fiber layer, and the small-caliber valve is movably connected to the right end of the connecting disk.

[0012] Preferably, the connecting valve is fixedly connected to the left end of the small-diameter valve, and the fixing platform is fixedly connected to the upper end of the small-diameter valve. The installed small-diameter valve and the connecting valve facilitate the connection and installation of the connecting plate and the telescopic column, and then the installed fixing platform and the connecting plate facilitate the rotation of the fixing nut, the movable shaft and the control knob. Then the installed fixing nut, the movable shaft and the control knob facilitate the use of the buffer device for pressure testing of small-diameter valves.

[0013] Preferably, the connecting plate is fixedly connected to the upper end of the fixing platform, and the fixing nut is fixedly connected to the upper end of the connecting plate.

[0014] Preferably, the movable shaft is fixedly connected to the upper end of the fixing nut, and the control knob is fixedly connected to the upper end of the movable shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The buffer device for pressure testing of small-diameter valves improves the buffer connection capacity of the buffer device through the improvement of the buffer device. In the actual use of the buffer device, the small-diameter valve can be conveniently and quickly connected for buffering as needed, which reduces the buffer capacity of the pressure testing of the small-diameter valve and improves the use experience of the buffer device for pressure testing of small-diameter valves;

[0017] 2. The buffer device for pressure testing of small-caliber valves facilitates the connection and fixation of the buffer device for pressure testing of small-caliber valves through the installation of the connecting column, the connecting ring, the buffer pad, the connecting groove, and the fixing device, and then facilitates the use of the buffer device for pressure testing of small-caliber valves through the installation of the installed polyvinyl alcohol fiber layer, the polyester microfiber layer, the natural cotton fiber layer, the natural bamboo fiber layer, and the polyester bulked fiber layer;

[0018] 3. The buffer device for pressure testing of small-diameter valves facilitates the connection and installation of the connecting plate and the telescopic column through the installed small-diameter valves and connecting valves, and then facilitates the rotation of the fixing nut, the movable shaft and the control knob through the installed fixing platform and the connecting plate, and then facilitates the use of the buffer device for pressure testing of small-diameter valves through the installed fixing nut, the movable shaft and the control knob. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connection disk of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the buffer pad of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a small-caliber valve of the utility model.

[0023] In the figure: 1. connecting plate; 2. telescopic column; 3. connecting column; 4. connecting ring; 5. buffer pad; 6. connecting groove; 7. fixing device; 8. polyvinyl alcohol fiber layer; 9. polyester microfiber layer; 10. natural cotton fiber layer; 11. natural bamboo fiber layer; 12. polyester bulked fiber layer; 13. small-caliber valve; 14. connecting valve; 15. fixing platform; 16. connecting plate; 17. fixing nut; 18. movable shaft; 19. control knob. 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] See also Figure 1-Figure 4 The utility model provides a technical solution: a buffer device for pressure testing of small-diameter valves, which comprises a connecting plate 1, a telescopic column 2, a connecting column 3, a connecting ring 4, a buffer pad 5, a connecting groove 6, a fixing device 7, a polyvinyl alcohol fiber layer 8, a polyester microfiber layer 9, a natural cotton fiber layer 10, a natural bamboo fiber layer 11, a polyester bulked fiber layer 12, a small-diameter valve 13, a connecting valve 14, a fixing platform 15, a connecting plate 16, a fixing nut 17, a movable shaft 18 and a control knob 19. The telescopic column 2 is movably connected to the left end of the connecting plate 1, the connecting column 3 is fixedly connected to the left end of the telescopic column 2, the connecting ring 4 is fixedly connected to the left end of the connecting column 3, the buffer pad 5 is fixedly connected to the left end of the connecting ring 4, the connecting groove 6 is fixedly connected to the left end of the connecting ring 4, and the fixing device 7 is fixedly connected to the upper end of the connecting ring 4.

[0026] The polyvinyl alcohol fiber layer 8 is fixedly connected to the right end of the buffer pad 5, the polyester microfiber layer 9 is fixedly connected to the right end of the polyvinyl alcohol fiber layer 8, the natural cotton fiber layer 10 is fixedly connected to the right end of the polyester microfiber layer 9, the natural bamboo fiber layer 11 is fixedly connected to the right end of the natural cotton fiber layer 10, the polyester bulked fiber layer 12 is fixedly connected to the right end of the natural bamboo fiber layer 11, and the small-diameter valve 13 is movably connected to the right end of the connecting plate 1. The connection and fixation of the buffer device for pressure testing of small-diameter valves are facilitated by the installation of the connecting column 3, the connecting ring 4, the buffer pad 5, the connecting groove 6, and the fixing device 7. Then, the use of the buffer device for pressure testing of small-diameter valves is facilitated by the installation of the polyvinyl alcohol fiber layer 8, the polyester microfiber layer 9, the natural cotton fiber layer 10, the natural bamboo fiber layer 11, and the polyester bulked fiber layer 12.

[0027] The connecting valve 14 is fixedly connected to the left end of the small-diameter valve 13, the fixing platform 15 is fixedly connected to the upper end of the small-diameter valve 13, the connecting plate 16 is fixedly connected to the upper end of the fixing platform 15, the fixing nut 17 is fixedly connected to the upper end of the connecting plate 16, the movable shaft 18 is fixedly connected to the upper end of the fixing nut 17, and the control knob 19 is fixedly connected to the upper end of the movable shaft 18. By installing the small-diameter valve 13 and the connecting valve 14, the connection and installation of the connecting plate 1 and the telescopic column 2 are facilitated, and then by installing the fixing platform 15 and the connecting plate 16, the rotation of the fixing nut 17, the movable shaft 18 and the control knob 19 is facilitated, and then by installing the fixing nut 17, the movable shaft 18 and the control knob 19, the use of the buffer device for pressure testing of small-diameter valves is facilitated.

[0028] Working principle: Through the installation of small-diameter valves 13 and connecting valves 14, the connection and installation of the connecting plate 1 and the telescopic column 2 are facilitated, and then through the installation of the fixing platform 15 and the connecting plate 16, the rotation of the fixing nut 17, the movable shaft 18 and the control knob 19 is facilitated, and then through the installation of the fixing nut 17, the movable shaft 18 and the control knob 19, the use of the buffer device for pressure testing of small-diameter valves is facilitated, and then through the installation of the connecting column 3, the connecting ring 4, the buffer pad 5, the connecting groove 6 and the fixing device 7, the connection and fixation of the buffer device for pressure testing of small-diameter valves is facilitated, and then through the installation of the polyvinyl alcohol fiber layer 8, the polyester microfiber layer 9, the natural cotton fiber layer 10, the natural bamboo fiber layer 11 and the polyester bulked fiber layer 12, the use of the buffer device for pressure testing of small-diameter valves is facilitated.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A buffer device for pressure testing of small-caliber valves, the buffer device for pressure testing of small-caliber valves comprising a connecting plate (1), a telescopic column (2), a connecting column (3), a connecting ring (4), a buffer pad (5), a connecting groove (6), and a fixing device (7), characterized in that: The telescopic column (2) is movably connected to the left end of the connecting plate (1), the connecting column (3) is fixedly connected to the left end of the telescopic column (2), the connecting ring (4) is fixedly connected to the left end of the connecting column (3), the buffer pad (5) is fixedly connected to the left end of the connecting ring (4), the connecting groove (6) is fixedly connected to the left end of the connecting ring (4), and the fixing device (7) is fixedly connected to the upper end of the connecting ring (4).

2. A buffer device for pressure testing of small-caliber valves according to claim 1, characterized in that: It also includes a polyvinyl alcohol fiber layer (8), a polyester microfiber layer (9), a natural cotton fiber layer (10), a natural bamboo fiber layer (11), a polyester bulked fiber layer (12), a small-caliber valve (13), a connecting valve (14), a fixing platform (15), a connecting plate (16), a fixing nut (17), a movable shaft (18) and a control knob (19), characterized in that the polyvinyl alcohol fiber layer (8) is fixedly connected to the right end of the buffer pad (5), and the polyester microfiber layer (9) is fixedly connected to the right end of the polyvinyl alcohol fiber layer (8).

3. A buffer device for pressure testing of small-caliber valves according to claim 2, characterized in that: The natural cotton fiber layer (10) is fixedly connected to the right end of the polyester microfiber layer (9), and the natural bamboo fiber layer (11) is fixedly connected to the right end of the natural cotton fiber layer (10).

4. A buffer device for pressure testing of small-caliber valves according to claim 3, characterized in that: The polyester bulked fiber layer (12) is fixedly connected to the right end of the natural bamboo fiber layer (11), and the small-caliber valve (13) is movably connected to the right end of the connecting plate (1).

5. A buffer device for pressure testing of small-caliber valves according to claim 4, characterized in that: The connecting valve (14) is fixedly connected to the left end of the small-diameter valve (13), and the fixing platform (15) is fixedly connected to the upper end of the small-diameter valve (13).

6. A buffer device for pressure testing of small-caliber valves according to claim 5, characterized in that: The connecting plate (16) is fixedly connected to the upper end of the fixing platform (15), and the fixing nut (17) is fixedly connected to the upper end of the connecting plate (16).

7. A buffer device for pressure testing of small-caliber valves according to claim 6, characterized in that: The movable shaft (18) is fixedly connected to the upper end of the fixing nut (17), and the control knob (19) is fixedly connected to the upper end of the movable shaft (18).

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