Triangular sealing eccentric semi-ball valve

Abstract

The utility model belongs to the technical field of eccentric semi-ball valves, and particularly relates to a triangular sealing eccentric semi-ball valve which comprises a valve body, a hollow semi-ball valve plate is installed in the valve body, the top of the hollow semi-ball valve plate is connected with an upper shaft, and a sealing sleeve is installed between the upper shaft and the valve body. The replacing mechanism is located between the sealing sleeve and the valve body, the replacing mechanism is used for disassembling and replacing the sealing sleeve, the replacing mechanism comprises a fixing base fixed to the top of the valve body and a control sleeve arranged at the top of the fixing base, and an abutting mechanism for abutting against the control sleeve is arranged between the control sleeve and the fixing base; through the arrangement of the replacement mechanism, a user can conveniently and rapidly replace the sealing sleeve, the problems that once the sealing sleeve is damaged or aged, the whole valve body needs to be replaced or a more complex maintenance process needs to be adopted in an existing device, and the maintenance difficulty and cost are increased are solved, and therefore normal use of the device is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of eccentric hemispherical valves, in particular to a triangular sealing eccentric hemispherical valve. Background Art

[0002] The triangular seal eccentric hemispherical valve is an industrial valve usually used to control the flow of fluids (such as water, oil, gas, etc.). It has an eccentric hemispherical valve body and a triangular seal structure. The design of the eccentric hemispherical valve body can effectively reduce the friction of the fluid on the valve seat when the valve is closed, thereby extending the service life of the valve and improving the sealing performance, while preventing fluid leakage.

[0003] In the Chinese patent with the announcement number CN209146376U, a triangular sealed eccentric hemispherical valve is disclosed. The device is used in combination with a lower shaft, an upper shaft, a hollow hemispherical valve disc, a sealing ring pressure plate, a valve seat, a triangular sealing ring, a fastening screw, a second fixing ring and a second bolt. The hollow hemispherical valve disc and the valve seat form a pair of sealing pairs, and the hollow hemispherical valve disc and the triangular sealing ring form another pair of sealing pairs, so that the sealing performance of the valve is more guaranteed, and the triangular sealing ring has good elasticity, which reduces the opening and closing torque of the valve, thereby extending the service life of the valve. At the same time, the valve has the characteristics of economy and reliability, has good practical value, and is worthy of promotion and use; however, when the hollow hemispherical valve disc is opened and closed, the third sealing ring will form friction with the upper shaft, so that the sealing efficiency of the third sealing ring is continuously reduced. However, it is difficult to replace the third sealing ring of the above-mentioned triangular sealed eccentric hemispherical valve. Once the sealing ring is damaged or aged, it is necessary to replace the entire valve body or adopt a more complicated maintenance process, which increases the difficulty and cost of maintenance, thereby affecting the use of the valve body and reducing the practicality of the existing device.

[0004] In order to solve the above problems, a triangular sealing eccentric hemispherical valve is proposed in the present application. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a triangular sealing eccentric hemispherical valve, which has the characteristic of convenient replacement of the sealing sleeve.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Triangular seal eccentric hemispheric valve, including:

[0008] A valve body, wherein a hollow hemispherical valve disc is installed inside the valve body, an upper shaft is connected to the top of the hollow hemispherical valve disc, and a sealing sleeve is installed between the upper shaft and the valve body;

[0009] A replacement mechanism, which is located between the sealing sleeve and the valve body, and is used to disassemble and replace the sealing sleeve. The replacement mechanism includes a fixing seat fixed on the top of the valve body and a control sleeve arranged on the top of the fixing seat. The control sleeve is connected to the sealing sleeve, and a resistance mechanism for resisting the control sleeve is arranged between the control sleeve and the fixing seat.

[0010] As a preferred embodiment of the triangular sealed eccentric hemispherical valve of the utility model, the resistance mechanism includes a rotating rod rotatably installed on the top of the control sleeve and a resistance plate fixed on the outer wall of the rotating rod, the resistance plate corresponds to the control sleeve, and a plurality of evenly distributed control rods are fixed to the outer wall of the top of the rotating rod.

[0011] As a preferred embodiment of the triangular sealed eccentric hemispheric valve of the utility model, a limiting mechanism for limiting the rotating rod is arranged between the rotating rod and the fixed seat, the limiting mechanism includes a plurality of limiting rods inserted on the top of the fixed seat, a limiting sleeve is commonly installed on the top of the plurality of limiting rods, the limiting sleeve is arranged on the outer wall of the rotating rod, and a sliding mechanism is arranged between the limiting sleeve and the rotating rod to facilitate the limiting sleeve to slide up and down.

[0012] As a preferred embodiment of the triangular sealed eccentric hemispherical valve of the utility model, the sliding mechanism includes a plurality of sliding grooves provided on the outer wall of the rotating rod and a plurality of sliding blocks fixed inside the limiting sleeve, and the plurality of sliding blocks cooperate with the plurality of sliding grooves.

[0013] As a preferred embodiment of the triangular sealed eccentric hemispheric valve of the utility model, a protective mechanism is arranged on the top of the fixed seat, and the protective mechanism comprises a protective shell hinged on the top of the fixed seat, a cavity is arranged inside the protective shell, and a positioning mechanism for positioning the protective shell is arranged between the protective shell and the fixed seat.

[0014] As a preferred embodiment of the triangular sealed eccentric hemispheric valve of the utility model, the positioning mechanism includes a rotating shaft rotatably mounted on one side of a fixed seat and a rotating plate fixed on the outer wall of the rotating shaft, a pull rod is fixed to one side of the rotating plate, and a positioning groove for sliding of the pull rod is jointly provided on one side of the fixed seat and the protective shell, and a blocking mechanism for blocking the pull rod is arranged inside the positioning groove.

[0015] As a preferred embodiment of the triangular sealed eccentric hemispheric valve of the utility model, the blocking mechanism includes a slot and a receiving slot respectively opened at the upper and lower ends of the positioning slot, a blocking plate is installed inside the receiving slot, a spring is connected between the blocking plate and the receiving slot, and a control plate is fixed on one side of the blocking plate, and an open slot for sliding the control plate is opened on one side of the protective shell.

[0016] As a preferred embodiment of the triangular sealed eccentric hemispherical valve of the utility model, a water inlet end and a water outlet end corresponding to the hollow hemispherical valve are respectively installed on both sides of the valve body, flanges are respectively installed on the opposite sides of the water inlet end and the water outlet end, and a hexagonal groove is opened on the top of the upper shaft.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can facilitate users to quickly replace the sealing sleeve by setting the replacement mechanism, which solves the problem that once the sealing sleeve is damaged or aged in the existing device, the entire valve body needs to be replaced or a more complicated maintenance process is adopted, which increases the difficulty and cost of maintenance, thereby ensuring the normal use of the device and increasing the practicality of the utility model;

[0019] 2. The utility model can protect the replacement mechanism by setting a protective mechanism, preventing the staff from accidentally touching the control sleeve when using the valve body, causing the sealing sleeve to loosen or fall off, thereby increasing the safety of the sealing sleeve and improving the stability of the replacement mechanism. Since the replacement mechanism is effectively protected, the operator can focus more on the normal operation and production process of the valve body, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 A cross-sectional view of

[0023] Figure 3 For this utility model Figure 1 A schematic diagram of the structure of the replacement mechanism;

[0024] Figure 4 For this utility model Figure 3 Schematic diagram of the structure when the middle limit mechanism is disassembled;

[0025] Figure 5 For this utility model Figure 1 Schematic diagram of the structure of the middle protection mechanism;

[0026] Figure 6 For this utility model Figure 5 Schematic diagram of the structure when the middle positioning mechanism is disassembled;

[0027] In the figure: 1. valve body; 2. upper shaft; 3. replacement mechanism; 4. protection mechanism; 5. hollow hemispherical valve disc; 6. sealing sleeve;

[0028] 31. Fixed seat; 32. Rotating rod; 33. Contact plate; 34. Limit sleeve; 35. Limit rod; 36. Control sleeve;

[0029] 41. Protective shell; 42. Rotating plate; 43. Spring; 44. Pull rod. DETAILED DESCRIPTION

[0030] 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.

[0031] The utility model provides Figure 1 and Figure 2 The triangular sealed eccentric hemispherical valve shown comprises: a valve body 1, a hollow hemispherical valve disc 5 is installed inside the valve body 1, an upper shaft 2 is connected to the top of the hollow hemispherical valve disc 5, a sealing sleeve 6 is installed between the upper shaft 2 and the valve body 1, a water inlet end and a water outlet end corresponding to the hollow hemispherical valve are installed on both sides of the valve body 1, flanges are installed on the opposite sides of the water inlet end and the water outlet end, and a hexagonal groove is provided on the top of the upper shaft 2.

[0032] As can be seen from the above, when in use, the valve body 1 is first connected to the water inlet end and the water outlet end through two flanges, and then the upper shaft 2 is rotated through the hexagonal groove to rotate. The rotation of the upper shaft 2 drives the hollow hemispherical valve plate 5 to rotate, thereby controlling the internal flow of the valve body 1.

[0033] refer to Figure 1-Figure 4As shown, the replacement mechanism 3 is located between the sealing sleeve 6 and the valve body 1, and the replacement mechanism 3 is used to disassemble and replace the sealing sleeve 6. The replacement mechanism 3 includes a fixing seat 31 fixed to the top of the valve body 1 and a control sleeve 36 arranged on the top of the fixing seat 31. The control sleeve 36 is connected to the sealing sleeve 6, and a resistance mechanism for resisting the control sleeve 36 is arranged between the control sleeve 36 and the fixing seat 31. The resistance mechanism includes a rotating rod 32 rotatably installed on the top of the control sleeve 36 and a resistance fixed on the outer wall of the rotating rod 32. The touch plate 33 and the resistance plate 33 correspond to the control sleeve 36. A plurality of evenly distributed control rods are fixed to the outer wall at the top of the rotating rod 32. A limiting mechanism for limiting the rotating rod 32 is provided between the rotating rod 32 and the fixed seat 31. The limiting mechanism includes a plurality of limiting rods 35 plugged into the top of the fixed seat 31. A limiting sleeve 34 is commonly installed on the tops of the plurality of limiting rods 35. The limiting sleeve 34 is sleeved on the outer wall of the rotating rod 32, and a sliding mechanism is provided between the limiting sleeve 34 and the rotating rod 32 to facilitate the limiting sleeve 34 to slide up and down.

[0034] Through the above technical solution:

[0035] When in use, pulling the limit sleeve 34 drives the multiple limit rods 35 to move, and the multiple limit rods 35 are separated from the fixing seat 31 through the movement. After the limit rods 35 and the fixing seat 31 are separated from each other, the multiple control rods are rotated to drive the rotating rod 32 to rotate, and the rotation of the rotating rod 32 drives the resistance plate 33 to rotate, so that the resistance plate 33 and the control sleeve 36 are separated. After the resistance plate 33 and the control sleeve 36 are separated from each other, the control sleeve 36 is pulled to drive the sealing sleeve 6 to move upward, so that the user can quickly replace the sealing sleeve 6, which solves the problem that once the sealing sleeve 6 is damaged or aged in the existing device, the entire valve body 1 needs to be replaced or a more complicated maintenance process needs to be adopted, which increases the difficulty and cost of maintenance, thereby ensuring the normal use of the device and increasing the practicality of the utility model.

[0036] Regarding the above-mentioned sliding mechanism, Figure 4 As shown, the sliding mechanism includes multiple sliding grooves provided on the outer wall of the rotating rod 32 and multiple sliders fixed inside the limiting sleeve 34, and the multiple sliders cooperate with the multiple sliding grooves. The sliding mechanism includes multiple sliding grooves provided on the outer wall of the rotating rod 32 and multiple sliders fixed inside the limiting sleeve 34, and the multiple sliders cooperate with the multiple sliding grooves; based on this, the movement of the limiting sleeve 34 drives the multiple sliders to move in the multiple sliding grooves, and the mutual cooperation between the multiple sliders and the multiple sliding grooves makes the limiting sleeve 34 more stable during the movement and will not easily deviate.

[0037] In addition, refer to Figure 2 , Figure 5 and Figure 6As shown, a protective mechanism 4 is provided on the top of the fixed seat 31, and the protective mechanism 4 includes a protective shell 41 hinged on the top of the fixed seat 31, a cavity is provided inside the protective shell 41, and a positioning mechanism for positioning the protective shell 41 is provided between the protective shell 41 and the fixed seat 31, the positioning mechanism includes a rotating shaft rotatably installed on one side of the fixed seat 31 and a rotating plate 42 fixed on the outer wall of the rotating shaft, a pull rod 44 is fixed to one side of the rotating plate 42, and a positioning groove for sliding the pull rod 44 is jointly provided on one side of the fixed seat 31 and the protective shell 41, and a blocking mechanism for blocking the pull rod 44 is provided inside the positioning groove, and the blocking mechanism includes a slot and a receiving groove respectively provided at the upper and lower ends of the positioning groove, a blocking plate is installed inside the receiving groove, a spring 43 is connected between the blocking plate and the receiving groove, and a control plate is fixed to one side of the blocking plate, and an open groove for sliding the control plate is provided on one side of the protective shell 41.

[0038] Through the above technical solution:

[0039] When in use, the control plate is pulled to drive the blocking plate to move upward, and the upward movement of the blocking plate drives the spring 43 to contract, and the contraction of the spring 43 allows the blocking plate to enter the storage groove. After the blocking plate enters the storage groove, the rotating shaft drives the rotating plate 42 to rotate, and the rotation of the rotating plate 42 drives the pull rod 44 to rotate synchronously, so that the pull rod 44 moves in the positioning groove. Until the pull rod 44 moves close to the fixed seat 31, the rotation of the rotating shaft can be stopped, and then the protective shell 41 is rotated to separate it from the replacement mechanism 3. Conversely, it can cover the replacement mechanism 3, so as to protect the replacement mechanism 3 and prevent the staff from accidentally touching the control sleeve 36 when using the valve body 1, causing the sealing sleeve 6 to loosen or fall off, thereby increasing the safety of the sealing sleeve 6 and improving the stability of the replacement mechanism 3. Since the replacement mechanism 3 is effectively protected, the operator can focus more on the normal operation and production process of the valve body 1, thereby improving production efficiency.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Triangular seal eccentric hemispherical valve, characterized in that: include: A valve body (1), wherein a hollow hemispherical valve disc (5) is installed inside the valve body (1), an upper shaft (2) is connected to the top of the hollow hemispherical valve disc (5), and a sealing sleeve (6) is installed between the upper shaft (2) and the valve body (1); A replacement mechanism (3), the replacement mechanism (3) is located between the sealing sleeve (6) and the valve body (1), and the replacement mechanism (3) is used to disassemble and replace the sealing sleeve (6), the replacement mechanism (3) comprises a fixing seat (31) fixed on the top of the valve body (1) and a control sleeve (36) arranged on the top of the fixing seat (31), the control sleeve (36) is connected to the sealing sleeve (6), and a resistance mechanism for causing the control sleeve (36) to resist is arranged between the control sleeve (36) and the fixing seat (31).

2. The triangular sealing eccentric hemispherical valve according to claim 1, characterized in that: The interference mechanism comprises a rotating rod (32) rotatably mounted on the top of a control sleeve (36) and an interference plate (33) fixed on the outer wall of the rotating rod (32); the interference plate (33) corresponds to the control sleeve (36); and a plurality of evenly distributed control rods are fixed on the outer wall of the top of the rotating rod (32).

3. The triangular sealing eccentric hemispherical valve according to claim 2, characterized in that: A limiting mechanism for limiting the rotating rod (32) is arranged between the rotating rod (32) and the fixed seat (31), the limiting mechanism comprising a plurality of limiting rods (35) plugged into the top of the fixed seat (31), a limiting sleeve (34) being installed on the top of the plurality of limiting rods (35), the limiting sleeve (34) being sleeved on the outer wall of the rotating rod (32), and a sliding mechanism for facilitating the limiting sleeve (34) to slide up and down is arranged between the limiting sleeve (34) and the rotating rod (32).

4. The triangular sealing eccentric hemispherical valve according to claim 3, characterized in that: The sliding mechanism comprises a plurality of sliding grooves formed on the outer wall of the rotating rod (32) and a plurality of sliding blocks fixed inside the limiting sleeve (34), wherein the plurality of sliding blocks cooperate with the plurality of sliding grooves.

5. The triangular sealing eccentric hemispherical valve according to claim 1, characterized in that: A protective mechanism (4) is arranged on the top of the fixing seat (31), and the protective mechanism (4) comprises a protective shell (41) hinged on the top of the fixing seat (31), a cavity is arranged inside the protective shell (41), and a positioning mechanism for positioning the protective shell (41) is arranged between the protective shell (41) and the fixing seat (31).

6. The triangular sealing eccentric hemispherical valve according to claim 5, characterized in that: The positioning mechanism comprises a rotating shaft rotatably mounted on one side of a fixed seat (31) and a rotating plate (42) fixed on the outer wall of the rotating shaft, a pull rod (44) is fixed on one side of the rotating plate (42), a positioning groove for sliding the pull rod (44) is provided on one side of the fixed seat (31) and the protective shell (41), and a blocking mechanism for blocking the pull rod (44) is provided inside the positioning groove.

7. The triangular sealing eccentric hemispherical valve according to claim 6, characterized in that: The blocking mechanism comprises a slot and a receiving slot respectively provided at the upper and lower ends of the positioning slot, a blocking plate is installed inside the receiving slot, a spring (43) is connected between the blocking plate and the receiving slot, a control plate is fixed on one side of the blocking plate, and an open slot for the control plate to slide is provided on one side of the protective shell (41).

8. The triangular sealing eccentric hemispherical valve according to claim 1, characterized in that: A water inlet end and a water outlet end corresponding to the hollow hemispherical valve are respectively installed on both sides of the valve body (1), flanges are respectively installed on the opposite sides of the water inlet end and the water outlet end, and a hexagonal groove is opened on the top of the upper shaft (2).

Images