Adjustable telescopic ball valve

Abstract

The utility model provides an adjustable telescopic ball valve, and belongs to the technical field of valve manufacturing. The problem that an existing ball valve is short in service life is solved. The adjustable telescopic ball valve comprises a valve seat, the top of the valve seat is fixedly provided with a valve top shell, an inner cavity of the valve seat is slidably connected with a valve element body, the bottom of the inner cavity of the valve seat is fixedly connected with a limiting column, the outer surface of the limiting column is slidably sleeved with a limiting inserting shell, and the left side and the right side of the valve seat are each provided with a connecting water pipe; mounting flanges are welded to the inner side of the connecting water pipe and the outer side of the valve seat correspondingly, the tops and the bottoms of the mounting flanges are sleeved with an upper protection shell and a lower protection shell correspondingly, and positioning insertion shells are fixedly connected to the tops of the front side and the rear side of the lower protection shell correspondingly. The valve element has the advantages that the bottom of the valve element is limited, the stability of the valve element is improved, leakage is avoided, the gasket in the flange is subjected to dustproof and waterproof protection, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve manufacturing technical field relates to a ball valve especially relates to a kind of adjustable telescopic ball valve. BACKGROUND

[0002] Ball valve is a kind of valve widely used in industrial field, mainly for controlling the on-off, distribution and flow direction switching, the core component of ball valve is a ball with circular through-hole, ball is driven by valve stem and rotates around ball valve axis.

[0003] For example, a kind of adjustable ball valve [application number: 202222215093.2;Grant announcement number: CN217977483U] is disclosed in Chinese patent literature, it includes ball valve body, flow rate regulating mechanism, flow regulating mechanism and mounting mechanism, flow rate regulating mechanism is located at the top of ball valve body, flow regulating mechanism is located at the top of ball valve body, mounting mechanism is located at the outer end of ball valve body, flow rate regulating mechanism includes screw hole, connecting rod, sealing connector one, sealing rubber pad, movable rod, baffle and handle, screw hole is fixedly arranged at the top of ball valve body, connecting rod is installed at the inner end of screw hole, connecting rod penetrates screw hole, connecting rod is threadedly connected with screw hole.

[0004] The above-mentioned adjustable ball valve is installed with flow rate regulating mechanism, movable rod is rotated by handle, movable rod is moved up and down by screw hole and movable rod is lifted, movable rod lifts baffle, when baffle is located at the water outlet end of flow regulating mechanism, it rotates due to water flow force, baffle buffers the flow water passing through, reduces the flow rate of flow water, when baffle moves up, water flow is no longer restricted, and water flow flows without obstruction, but it cannot limit the rotation of valve core, the bottom of valve core in the above-mentioned ball valve is directly contacted with the inner wall of valve seat and is slidably connected, so that water flow will impact valve core during opening and closing rotation, since the bottom of valve core in the above-mentioned ball valve cannot be limited, long-time impact makes the contact between the bottom of valve core and valve seat unstable, wear causes leakage, and the surface of connecting flange cannot be protected from dust and water, so that water droplets and dust can enter the gap between the two flange connecting places and contact the gasket in the middle, the gasket will rot after long-time contact with water and dust, affecting sealing performance. SUMMARY

[0005] The utility model aims at the above-mentioned problems existing in prior art, and provides an adjustable telescopic ball valve with the function of limiting the bottom of valve core, improving the stability of valve core, avoiding leakage, protecting the gasket in flange from dust and water, and prolonging service life.

[0006] The utility model discloses a purpose can be realized through the following technical scheme: a adjustable telescopic ball valve, including the valve seat, the top fixed mounting of valve seat has the valve top shell, the inner chamber sliding connection of valve seat has the valve core body, the bottom fixed connection of valve seat inner chamber has the limiting post, the outer surface sliding sleeve of limiting post is equipped with the limiting insert shell, the left and right sides of valve seat all are equipped with the connecting water pipe, the inboard of connecting water pipe and the outside of valve seat all are welded with the mounting flange, the top and bottom of mounting flange are equipped with upper protection shell and lower protection shell respectively, the top of lower protection shell front and rear both sides all are fixedly connected with the positioning insert shell.

[0007] The adjustable telescopic ball valve is mainly provided with the upper protection shell, the lower protection shell, the limiting slot, the limiting post, the limiting insert shell, the mounting flange and the positioning insert shell, which can limit the bottom of the valve core, improve the stability of the valve core, avoid leakage, prevent dust and water from entering the gasket in the flange, and prolong the service life.

[0008] In the adjustable telescopic ball valve, the upper protection shell includes a protection shell body, the bottom of the protection shell body is fixedly connected with a mounting insert plate, and the front side of the mounting insert plate is fixedly connected with a positioning protrusion. In actual application, the bottom of the positioning protrusion is provided with a chamfer, and the mounting insert plate can be quickly inserted into the positioning insert shell through the chamfer.

[0009] In the adjustable telescopic ball valve, the inner cavities of the upper protection shell and the lower protection shell are glued with silica gel pads, and the outer side of the positioning insert shell is provided with a positioning opening. In actual application, the silica gel pads can make the upper protection shell and the lower protection shell tightly contact with the flange through the elasticity of the silica gel pads, and the sealing effect is improved.

[0010] In the adjustable telescopic ball valve, the bottom of the valve core body is provided with a limiting slot, and the top of the surface of the valve top shell is threadedly sleeved with a dust cover. In actual application, the dust cover can be raised or lowered through forward rotation or reverse rotation, and the dust cover contacts the bottom of the rotating cover shell after being raised, so that a closed space is formed in the rotating cover shell, dust outside is prevented from entering the surface of the valve rod, and the connection between the valve seat and the valve top shell can be covered and dustproofed.

[0011] In the adjustable telescopic ball valve, the top of the valve core body is fixedly connected with a valve rod, and the top of the valve rod penetrates to the outside of the valve top shell.

[0012] In the adjustable telescopic ball valve, the top of the valve rod surface is sleeved with a rotating cover shell, and the top of the valve rod is fixedly connected with the rotating cover shell through bolts.

[0013] Compared with the prior art, the adjustable telescopic ball valve has the advantages that the bottom of the valve core is limited during operation, the stability of the valve core is improved, leakage is avoided, the gasket in the flange is protected from dust and water, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a sectional view of the adjustable telescopic ball valve.

[0015] Figure 2 is an axial side view of the local structure of the adjustable telescopic ball valve.

[0016] Figure 3 is an exploded view of the upper protection shell and the lower protection shell of the adjustable telescopic ball valve.

[0017] In the figure: 1, valve seat; 2, valve top shell; 3, valve rod; 4, upper protection shell; 5, lower protection shell; 6, valve core body; 7, limiting slot; 8, limiting column; 9, limiting insert shell; 10, mounting flange; 11, connecting water pipe; 12, dust cover; 13, rotating cover shell; 14, silica gel pad; 15, positioning insert shell; 16, positioning opening; 17, positioning lug; 18, mounting insert plate; 19, protection shell body. DETAILED DESCRIPTION

[0018] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0019] As shown in Figure 1 , Figure 2 and Figure 3 , the adjustable telescopic ball valve comprises a valve seat 1, a valve top shell 2 is fixedly installed on the top of the valve seat 1, a valve core body 6 is slidably connected in the inner cavity of the valve seat 1, a limiting column 8 is fixedly connected at the bottom of the inner cavity of the valve seat 1, a limiting insert shell 9 is slidably sleeved on the outer surface of the limiting column 8, connecting water pipes 11 are installed on the left and right sides of the valve seat 1, mounting flanges 10 are welded on the inner sides of the connecting water pipes 11 and the outer sides of the valve seat 1, upper protection shells 4 and lower protection shells 5 are sleeved on the top and bottom of the mounting flanges 10 respectively, and positioning insert shells 15 are fixedly connected on the top of the front and rear sides of the lower protection shell 5.

[0020] Further, the upper protective shell 4 comprises a protective shell body 19, and mounting plug plates 18 are fixedly connected to the bottom of the protective shell body 19 on both sides.

[0021] The inner cavities of the upper protective shell 4 and the lower protective shell 5 are glued with silica gel pads 14, and the outer side of the positioning plug shell 15 is provided with positioning openings 16. The bottom of the valve core body 6 is provided with a limiting clamping groove 7, and the top of the surface of the valve top shell 2 is threadedly sleeved with a dust cover 12.

[0022] The top of the valve rod 3 is fixedly connected with the valve core body 6, and the top of the valve rod 3 penetrates to the outer side of the valve top shell 2. The top of the surface of the valve rod 3 is sleeved with a rotating cover shell 13, and the top of the valve rod 3 is fixedly connected with the rotating cover shell 13 through bolts.

[0023] In actual manufacturing, the limiting plug shell 9 is sleeved on the surface of the limiting column 8, and then the valve core body 6 is installed so that the limiting plug shell 9 is inserted into the limiting clamping groove 7 at the bottom. In this way, the limiting column 8 limits the bottom of the valve core body 6 through the limiting plug shell 9, so that the bottom is more stable when the water flow impacts the valve core body 6, avoiding the wear of the bottom of the valve core body 6 and the inner wall of the valve seat 1, which causes leakage. When the connecting water pipes 11 are installed on both sides of the valve seat 1, the mounting flanges 10 on both sides are fixedly installed, and then the protective shell body 19 and the lower protective shell 5 are sleeved on the top and bottom of the mounting flanges 10, respectively. Then the mounting plug plates 18 on both sides are inserted into the positioning plug shells 15 on both sides and pressed, and when the bottom of the protective shell body 19 contacts the lower protective shell 5, the positioning protrusions 17 are inserted into the positioning openings 16 for positioning. In this way, the gap between the two mounting flanges 10 can be protected from dust and water, avoiding the contact of the internal gaskets with liquid and dust, thereby prolonging the service life.

[0024] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. An adjustable telescopic ball valve comprising a valve seat (1), characterized in that: The top of the valve seat (1) is fixedly provided with a valve top shell (2), the inner cavity of the valve seat (1) is slidably connected with a valve core body (6), the bottom of the inner cavity of the valve seat (1) is fixedly connected with a limiting column (8), the outer surface of the limiting column (8) is slidably sleeved with a limiting plug shell (9), the left and right sides of the valve seat (1) are both provided with a connecting water pipe (11), the inner side of the connecting water pipe (11) and the outer side of the valve seat (1) are both welded with a mounting flange (10), the top and bottom of the mounting flange (10) are respectively sleeved with an upper protection shell (4) and a lower protection shell (5), and the top of the front and rear sides of the lower protection shell (5) is fixedly connected with a positioning plug shell (15).

2. An adjustable retractable ball valve according to claim 1, wherein: The upper protection shell (4) comprises a protection shell body (19), and the bottom of the front and rear sides of the protection shell body (19) is fixedly connected with a mounting plug plate (18).

3. An adjustable retractable ball valve according to claim 1, wherein: The inner cavities of the upper protection shell (4) and the lower protection shell (5) are both glued with silica gel pads (14), and the outer side of the positioning plug shell (15) is provided with a positioning opening (16).

4. The adjustable extension ball valve of claim 1, wherein: The bottom of the valve core body (6) is provided with a limiting clamping groove (7), and the top of the surface of the valve top shell (2) is threadedly sleeved with a dust cover (12).

5. The adjustable extension ball valve of claim 1, wherein: The top of the valve core body (6) is fixedly connected with a valve rod (3), and the top of the valve rod (3) penetrates to the outer side of the valve top shell (2).

6. An adjustable extension ball valve according to claim 5, wherein: The top of the surface of the valve rod (3) is sleeved with a rotating cover shell (13), and the top of the valve rod (3) and the rotating cover shell (13) are fixedly connected through bolts.

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