Ball valve facilitating filler replacement

Abstract

The utility model relates to the technical field of ball valves, in particular to a ball valve facilitating filler replacement, which comprises a ball valve body, the top of the ball valve body is communicated with a valve seat, the top of the valve seat is communicated with a sealing seat, the top of the sealing seat is provided with a support, and the middle of the support is in threaded connection with a screw. A valve rod is fixed to the bottom of the screw rod, a valve clack is fixed to the bottom of the valve rod, a packing bin is formed in the sealing seat, a sealing cover is clamped to the top of the packing bin, the lifting part is used for driving the screw rod to slide in a lifting mode, the discharging part is used for ejecting packing out, and the dismounting part is used for dismounting the packing bin. And the dismounting part is used for dismounting the sealing cover. The sealing packing is placed in the packing bin, the sealing performance of the packing bin is improved through the sealing packing, the abraded packing can be rapidly replaced, operation is convenient and fast, and the working efficiency of replacing the packing by workers is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field especially relates to a ball valve convenient to replace packing. BACKGROUND

[0002] Ball valve, ball body is driven by valve rod, and rotates around ball valve axis. It can also be used for the adjustment and control of fluid, wherein the V-shaped ball core of the V-shaped ball valve and the metal valve seat of the hard alloy welding have strong shearing force, and it is particularly suitable for media containing fibers, micro solid particles and the like, and the multi-way ball valve can not only flexibly control the flow, flow distribution and flow direction switching of the medium on the pipeline.

[0003] The valve rod needs to move in the ball valve, in order to prevent leakage from occurring at the rotating part, packing needs to be installed at the rotating part, but the packing will wear out after long-term use and needs to be replaced regularly.

[0004] Currently, when replacing the sealing packing, manual rotation of multiple bolts is needed to loosen the fixed plate, and then the sealing cover is removed, and then the packing is extracted and replaced by external tools. However, this replacement method is complicated and slow, increasing the workload of the staff replacing the packing. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem of inconvenient replacement of packing in the prior art and increasing the workload of staff, and provides a ball valve convenient to replace packing.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A ball valve convenient to replace packing, comprising a ball valve body, a valve seat is communicated at the top of the ball valve body, a sealing seat is communicated at the top of the valve seat, a support is installed at the top of the sealing seat, a screw rod is screw-connected in the middle of the support, a valve rod is fixed at the bottom of the screw rod, a valve flap is fixed at the bottom of the valve rod, a packing bin is formed in the inside of the sealing seat, and a sealing cover is clamped at the top of the packing bin.

[0008] Further comprising:

[0009] A lifting piece is used to drive the screw rod to lift and slide;

[0010] A discharging piece is used to eject the packing;

[0011] A dismounting piece is used to dismount the sealing cover.

[0012] Preferably, the lifting piece comprises:

[0013] A support shaft is fixed on the support;

[0014] A knob is rotationally connected to the supporting shaft;

[0015] The knob is in threaded connection with a screw rod, the supporting shaft and the support are internally hollow, and the inside of the knob is provided with external threads in threaded connection with the screw rod.

[0016] Preferably, the discharging member comprises:

[0017] An ejection plate is slidably arranged in the filler bin;

[0018] A pull rod is fixed to the ejection plate.

[0019] Preferably, the disassembling member comprises:

[0020] A locking plate is fixed to the sealing cover;

[0021] A concave block is fixed to the sealing seat;

[0022] A fixing rod is fixed to the concave block;

[0023] A sleeve is rotationally sleeved on the fixing rod;

[0024] A rotating rod is fixed to the sleeve;

[0025] A screw groove is formed in the rotating rod;

[0026] A nut is sleeved on the rotating rod.

[0027] Preferably, the inside of the locking plate and the sealing cover is provided with a through hole, the locking plate and the sealing cover are in sliding connection with the valve rod, and the diameter of the through hole is greater than or equal to the diameter of the pull rod.

[0028] Preferably, the inside of the nut is provided with external threads in threaded connection with the screw groove.

[0029] Compared with the prior art, the utility model has the following advantages:

[0030] 1、 the utility model discloses a screw knob threaded cooperation and through the threaded action drive valve rod and valve lift sliding and further control the flow, and the valve rod is placed in the filler bin activity, places the sealing filler in the filler bin, and the sealing filler plays the effect of increasing the capacity in the filler bin, and increases its sealing performance.

[0031] 2. The utility model discloses through drawing up to the locking plate, the locking plate stress drives the sealing cover to slide and separate the filler bin in the sealing seat interior, then pull the pull rod and drive the ejection plate to slide, make the ejection plate slide and drive the sealing filler to slide and separate the filler bin, so that the staff can take out and replace the new sealing filler of the worn filler quickly, make the operation convenient, further improve the work efficiency of staff replacement filler. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The whole structure schematic diagram of the ball valve convenient to replace filler is provided for the utility model;

[0033] Figure 2 The whole sectional structure schematic diagram of the ball valve convenient to replace filler is provided for the utility model;

[0034] Figure 3 The ball valve convenient to replace filler is provided for the utility model; Figure 2 The connecting structure schematic diagram of middle dismounting spare, valve rod and sealing seat etc. parts is provided for the utility model;

[0035] Figure 4 The ball valve convenient to replace filler is provided for the utility model; Figure 3 The enlarged structure schematic diagram of A place is provided for the utility model.

[0036] In the drawing:

[0037] 1, ball valve body;2, valve seat;3, sealing seat;4, support;5, screw;51, support shaft;52, knob;6, valve rod;7, valve flap;8, filler bin;81, ejection plate;82, pull rod;9, sealing cover;91, locking plate;92, through hole;93, concave block;94, fixed rod;95, sleeve;96, rotating rod;97, screw groove;98, nut. DETAILED DESCRIPTION

[0038] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0039] Referring to Figures 1-4 , a ball valve convenient to replace filler, including ball valve body 1, the top of ball valve body 1 is connected with valve seat 2, the top of valve seat 2 is connected with sealing seat 3, the top of sealing seat 3 is installed with support 4, the middle of support 4 is connected with screw 5 by screwing, the bottom of screw 5 is fixed with valve rod 6, the bottom of valve rod 6 is fixed with valve flap 7, the inside of sealing seat 3 is set up with filler bin 8, the top of filler bin 8 is clamped with sealing cover 9.

[0040] The ball valve with the filling material convenient to replace further comprises a lifting member, a discharging member and a dismounting member, the lifting member is used for driving the screw rod 5 to lift and slide, the discharging member is used for ejecting the filling material, and the dismounting member is used for dismounting the sealing cover 9.

[0041] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the lifting member comprises a support shaft 51 and a knob 52, the support shaft 51 is fixed on the support 4, the knob 52 is rotationally connected on the support shaft 51, the knob 52 is threadedly connected with the screw rod 5, the support shaft 51 and the support 4 are hollowed in the inside, so as to facilitate the screw rod 5 to stably lift and slide, and the inside of the knob 52 is provided with external threads matched with the screw rod 5.

[0042] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the discharging member comprises an ejecting plate 81 and a pull rod 82, the ejecting plate 81 slides in the filling material bin 8, and the pull rod 82 is fixed on the ejecting plate 81. The ejecting plate 81 can provide a smooth and controllable moving surface, so as to push the material out of the filling material bin 8 when needed, and the close fit between the ejecting plate 81 and the inner wall of the filling material bin 8 can reduce the friction and resistance of the material during the pushing process. At the same time, the sliding property of the ejecting plate 81 also ensures that it can easily enter and exit the filling material bin 8 without causing any damage or stagnation, and the pull rod 82 provides a stable support and pushing force for the ejecting plate 81, so that the filling material can be quickly taken out and replaced.

[0043] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the dismounting member comprises a locking plate 91, a concave block 93, a fixed rod 94, a sleeve 95, a rotating rod 96, a screw groove 97 and a nut 98, the locking plate 91 is fixed on the sealing cover 9, the concave block 93 is fixed on the sealing seat 3, the fixed rod 94 is fixed on the concave block 93, the sleeve 95 is rotationally sleeved on the fixed rod 94, the rotating rod 96 is fixed on the sleeve 95, the screw groove 97 is formed on the rotating rod 96, and the nut 98 is sleeved on the rotating rod 96.

[0044] It should be noted that the two ends of the locking plate 91 are provided with arc-shaped recesses, the diameters of the arc-shaped recesses are greater than the diameter of the rotating rod 96, the rotating rod 96 will enter the arc-shaped recesses during the rotation, and when the rotating rod 96 is rotationally embedded in the arc-shaped groove, a locking state is formed, and when the rotating rod 96 is rotationally separated from the arc-shaped groove, an unlocking state is formed.

[0045] In the embodiment, as shown in Figure 1 、 Figure 2 ,Figure 3 and Figure 4 As shown in the drawings, the locking plate 91 and the inner part of the sealing cover 9 are both provided with through holes 92, the locking plate 91 and the sealing cover 9 are in sliding connection with the valve rod 6, the diameter of the through holes 92 is greater than or equal to the diameter of the pull rod 82, which ensures that the pull rod 82 can smoothly pass through the through holes 92 in the locking plate 91 and the sealing cover 9, so that the sealing cover 9 will not be hindered when it is sealed and installed with the sealing seat 3.

[0046] In this embodiment, as shown in the drawings, Figure 1 , Figure 2 , Figure 3 and Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 As shown in the drawings, the inner part of the nut 98 is provided with external threads which are in threaded cooperation with the screw groove 97.

[0047] The function principle of the utility model can be described as follows:

[0048] When the ball valve is used, the knob 52 is rotated around the support shaft 51, and when it is rotated, it is in threaded cooperation with the screw rod 5 and drives the screw rod 5 and the valve flap 7 at the bottom thereof to ascend and descend through the valve rod 6 to control the flow, so that the ball valve can be stably used.

[0049] When the valve rod 6 ascends and descends, it will produce activity, in order to prevent leakage during the activity, sealing filler is placed in the filler chamber 8, which plays a role in increasing the capacity of the filler chamber 8 and improving the sealing performance. The sealing filler is easy to wear out during long-term use, and needs to be replaced. When it is replaced, the nut 98 is manually rotated along the screw groove 97 on the rotating rod 96 in the upward direction until the nut 98 is separated from the rotating rod 96, and then the rotating rod 96 is bent outward. The rotating rod 96 drives the sleeve 95 to rotate around the fixed rod 94, so that the rotating rod 96 is rotated to the perpendicular state with the concave block 93 to release the limiting of the locking plate 91, and then the locking plate 91 is pulled upward to drive the sealing cover 9 to slide upward and separate from the filler chamber 8 in the sealing seat 3. Then the pull rod 82 is pulled to drive the ejection plate 81 to slide upward, so that the ejection plate 81 drives the sealing filler to slide upward and separate from the filler chamber 8, so that the staff can quickly take out the worn filler. Then a new filler is placed in the filler chamber 8, and the locking plate 91 is pulled downward to drive the sealing cover 9 to slide downward and embed into the filler chamber 8, so that the filler chamber 8 is blocked. The rotating rod 96 at both ends is manually bent to drive the sleeve 95 to rotate along the fixed rod 94. During the rotating process, the rotating rod 96 is rotated and embedded in the recess of the locking plate 91. Then the nut 98 is sleeved on the rotating rod 96, and the nut 98 is rotated along the screw groove 97 until the sealing cover 9 is completely locked in the filler chamber 8, and then the rotation is stopped, so that the sealing cover 9 is stably sealed in the filler chamber 8, preventing the filler from leaking during use, and improving the sealing performance of the valve body.

[0050] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A ball valve with easy replacement of packing, comprising a ball valve body (1), characterized in that, The top of the ball valve body (1) is connected with a valve seat (2), the top of the valve seat (2) is connected with a sealing seat (3), the top of the sealing seat (3) is installed with a support (4), the middle of the support (4) is threadedly connected with a screw rod (5), the bottom of the screw rod (5) is fixedly connected with a valve rod (6), the bottom of the valve rod (6) is fixedly connected with a valve disc (7), the inside of the sealing seat (3) is provided with a packing bin (8), and the top of the packing bin (8) is clamped with a sealing cover (9). Further comprising: A lifting piece for driving the screw rod (5) to slide up and down; A discharging piece for ejecting the packing; A dismounting piece for dismounting the sealing cover (9).

2. A ball valve with easy packing replacement according to claim 1, characterized in that, The lifting piece comprises: A support shaft (51) fixed on the support (4); A knob (52) rotationally connected on the support shaft (51); The knob (52) is threadedly connected with the screw rod (5), the support shaft (51) and the support (4) are hollowed inside, and the inside of the knob (52) is provided with external threads threadedly matched with the screw rod (5).

3. A ball valve with easy packing replacement according to claim 1, characterized in that, The discharging piece comprises: An ejection plate (81) sliding in the packing bin (8); A pull rod (82) fixed on the ejection plate (81).

4. A ball valve with easy packing replacement according to claim 3, characterized in that, The dismounting piece comprises: A locking plate (91) fixed on the sealing cover (9); A concave block (93) fixed on the sealing seat (3); A fixing rod (94) fixed on the concave block (93); A sleeve (95) rotationally sleeved on the fixing rod (94); A rotating rod (96) fixed on the sleeve (95); A screw groove (97) formed on the rotating rod (96); A nut (98) sleeved on the rotating rod (96).

5. A ball valve with easy packing replacement according to claim 4, characterized in that The inside of the locking plate (91) and the sealing cover (9) is provided with a through hole (92), the locking plate (91) and the sealing cover (9) are slidably connected with the valve rod (6), and the diameter of the through hole (92) is greater than or equal to the diameter of the pull rod (82).

6. A ball valve with easy packing replacement according to claim 4, characterized in that, The inside of the nut (98) is provided with external threads threadedly matched with the screw groove (97).

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