Hand wheel opening type bar valve

Abstract

A hand wheel opening type bar valve comprises a valve body (1), a valve clack (2) and a lead screw lifting mechanism (3), connecting flanges are arranged at the inlet end and the outlet end of the valve body (1) respectively, a cross beam (4) is arranged in the middle of the valve body (1), a set of rod penetrating holes are formed in the cross beam (4), a set of blocking bars (5) are sequentially arranged at the bottom of the valve clack (2), and the blocking bars (5) are located in the corresponding rod penetrating holes. The valve has the advantages that the screw rod lifting mechanism drives the valve clack to lift, the adjusting speed is high, and an air source is not needed. The hand wheel is simple in overall structure, the hub and the rim are connected through the pair of spokes, and the rotating hand feeling is good. And the hand wheel is not easy to slip during rotation. The crank is detachable and can be installed according to needs.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a hand-wheel-opening rod valve. Background Art

[0002] At present, the rod valve is one of the commonly used valves in the mining industry.

[0003] It is composed of a valve frame and a blocking rod. When the rod is placed in the valve frame, the rod valve is closed, and when the rod is pulled out, the rod valve is opened. The flow rate is controlled by the number of rods pulled out. The valve flap of the existing rod valve is mostly driven by a cylinder. In the absence of an air source, the rod valve cannot work. There is a lack of a rod valve that can manually rotate the valve stem to drive the valve flap to rise and fall. The valve handwheel is a component that is arranged on the outside of the valve body and connected to the valve core to control the rotation of the valve core. The outer edge of the existing handwheel body is a flat arc shape. When the handwheel body is turned, the hands are easy to slip along the direction of rotation. At the same time, the presence of the plastic layer makes the surface of the handwheel body smoother, which makes it difficult for the operator to hold the handwheel body tightly, and the entire rotation process is more laborious. The crank on the handwheel is mostly integrally formed and cannot be disassembled, which affects the feel of use when the crank is not needed. Utility Model Content

[0004] The purpose of the utility model is to provide a hand wheel opening type rod valve in view of the above-mentioned shortcomings.

[0005] The utility model comprises a valve body, a valve flap and a screw rod lifting mechanism.

[0006] The inlet and outlet ends of the valve body are respectively provided with connecting flanges, a crossbeam is provided in the middle of the valve body, a group of rod holes are opened on the crossbeam, a group of blocking rods are arranged in sequence at the bottom of the valve disc, and the blocking rods are located in the corresponding rod holes, one end of the screw of the screw lifting mechanism is movably installed on the crossbeam, and the other end of the screw of the screw lifting mechanism is movably installed on the top of the valve body, and the valve disc is driven to rise or fall through the screw lifting mechanism;

[0007] A handwheel is arranged on the top of the screw of the screw lifting mechanism. The handwheel comprises a hub and a rim. The hub is fixed at the center of the rim through a pair of spokes. An axial hole is opened on the hub. A pair of anti-skid protrusions are symmetrically arranged on the inner wall of the rim.

[0008] The valve body is a rectangular frame, with slide rails arranged on the inner walls on both sides of the valve body, and slide grooves matching the slide rails are opened at both ends of the valve disc. The valve disc is driven to rise or fall along the slide rails through the screw lifting mechanism; the screw lifting mechanism is composed of a screw and a screw nut, and the screw nut is installed on one side of the valve disc. When the screw rotates, the valve disc is driven to rise or fall through the screw nut.

[0009] The blocking rod is welded to the bottom of the valve disc; a limiting groove is provided in the bottom of the valve body, and when the valve disc drives the blocking rod to the lowest position, the bottom of the blocking rod is located in the limiting groove.

[0010] Reinforcing ribs are respectively arranged on the inner walls of both sides at the top of the valve body.

[0011] The bottom of the blocking rod is frustum-shaped.

[0012] The shaft hole is an oblong hole. A pair of driving grooves are symmetrically distributed at the top of the lead screw of the lead screw lifting mechanism. The top of the lead screw of the lead screw lifting mechanism is installed in the shaft hole; threaded holes are opened on the outer wall of the hub, and locking screws are screwed into the threaded holes to fix the hub on the top of the valve stem.

[0013] Multiple groups of anti-slip patterns are arranged on the outer wall of the rim.

[0014] A group of arc-shaped anti-slip protrusions are evenly distributed in a ring shape at the top of the rim.

[0015] A cylindrical protrusion is arranged at the connection between the spoke and the rim. An installation hole is opened at the center of the cylindrical protrusion, and a crank is arranged in the installation hole; the crank is cylindrical; a screw rod is arranged at the bottom of the crank and is threadedly installed in the installation hole of the cylindrical protrusion through the screw rod.

[0016] Reinforcing ribs are respectively arranged on both sides at the connection between the spoke and the rim; a pair of spokes and a pair of anti-slip protrusions are arranged in a cross shape.

[0017] The advantages of the present utility model are as follows: The lead screw lifting mechanism is adopted to drive the valve flap to lift, with a relatively fast adjustment speed and no need for a gas source. The overall structure of the handwheel is simple. A pair of spokes are used to connect the hub and the rim, and the rotation feel is good. The handwheel is not easy to slip when rotating. The crank is detachable and can be installed according to needs. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a front structural schematic diagram of the lead screw lifting mechanism of the present utility model.

[0020] Figure 3 It is a back structural schematic diagram of the lead screw lifting mechanism of the present utility model.

[0021] Figure 4 It is a schematic structural diagram of the handwheel of the present utility model.

[0022] Figure 5 It is a schematic structural diagram of the handwheel of the present utility model with a crank installed. Detailed Embodiment

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a variety of different configurations.

[0024] Therefore, the detailed description of the embodiments of the present invention provided in the drawings below is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the invention is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, in the description of the present invention, if terms such as "first", "second", etc. are used only for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and defined, if terms such as "installed", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] As shown in the drawings, the utility model includes a valve body 1, a valve flap 2, and a screw rod lifting mechanism 3.

[0029] The inlet end and the outlet end of the valve body 1 are respectively provided with connecting flanges. A cross beam 4 is arranged in the middle of the valve body 1. A group of rod-passing holes are formed in the cross beam 4. At the bottom of the valve flap 2, a group of blocking rods 5 are arranged in sequence. The blocking rods 5 are located in the corresponding rod-passing holes. One end of the lead screw of the lead screw lifting mechanism 3 is movably installed on the cross beam 4, and the other end of the lead screw of the lead screw lifting mechanism 3 is movably installed at the top of the valve body 1. The valve flap 2 is driven to rise or fall by the lead screw lifting mechanism 3;

[0030] At the top of the lead screw of the lead screw lifting mechanism 3, a handwheel is provided. The handwheel includes a hub 101 and a rim 102. The hub 101 is fixed at the center of the rim 102 through a pair of spokes 103. An axial hole 104 is formed in the hub 101. A pair of anti-slip protrusions 105 are symmetrically distributed on the inner wall of the rim 102.

[0031] The valve body 1 is a rectangular frame. Slide rails 6 are respectively arranged on the inner walls of both sides of the valve body 1. Slide grooves matching with the slide rails 6 are respectively formed at both ends of the valve flap 2. The valve flap 2 is driven to rise or fall along the slide rails 6 by the lead screw lifting mechanism 3; The lead screw lifting mechanism 3 is composed of a lead screw and a lead screw nut. The lead screw nut is installed on one side of the valve flap 2. When the lead screw rotates, the valve flap 2 is driven to rise or fall through the lead screw nut.

[0032] The blocking rods 5 are welded to the bottom of the valve flap 2; A limit groove is formed at the inner bottom of the valve body 1. When the valve flap 2 drives the blocking rods 5 to drop to the lowest position, the bottom of the blocking rods 5 is located in the limit groove.

[0033] Reinforcing ribs are respectively arranged on the inner walls of both sides at the top of the valve body 1.

[0034] The bottom of the blocking rod 5 is frustum-shaped.

[0035] The axial hole 104 is an oblong hole. A pair of driving grooves are symmetrically formed at the top of the lead screw of the lead screw lifting mechanism 3. The top of the lead screw of the lead screw lifting mechanism 3 is installed in the axial hole 104; A threaded hole is formed on the outer wall of the hub 101. The locking screw is screwed into the threaded hole to fix the hub 101 at the top of the valve rod.

[0036] Multiple groups of anti-slip lines are arranged on the outer wall of the rim 102.

[0037] A group of arc-shaped anti-slip protrusions 106 are annularly and evenly arranged at the top of the rim 102.

[0038] A cylindrical protrusion 108 is arranged at the connection between the spoke 103 and the rim 102. An installation hole is formed at the center of the cylindrical protrusion 108. A crank 107 is arranged in the installation hole; The crank 107 is cylindrical; A screw rod is arranged at the bottom of the crank 107 and is threadedly installed in the installation hole of the cylindrical protrusion 108.

[0039] Reinforcing ribs are respectively arranged on both sides of the connection between the spoke 103 and the rim 102; a pair of spokes 103 and a pair of anti-slip protrusions 105 are arranged in a cross shape.

[0040] Embodiment 1: The sluice valve is butted with the round pipe through the connecting flange. When it is necessary to adjust the opening amplitude of the valve flap 2, the handwheel is installed on the top of the screw rod of the screw rod lifting mechanism 3. Rotating the handwheel drives the screw rod to rotate. One end of the screw rod is movably installed on the cross beam 4 through a bearing, and the other end of the screw rod is movably installed on the top of the valve body 1 through a bearing. The valve flap 2 is driven to rise or fall along a pair of slide rails 6 through the screw rod nut, so as to achieve the function of opening and closing the flow area of the sluice valve. Reinforcing ribs are respectively arranged on the inner walls of both sides of the top of the valve body 1, so that the upper frame of the valve body 1 has higher strength. A pair of driving grooves are symmetrically distributed at the top of the screw rod of the screw rod lifting mechanism 3, so that the handwheel matches with the top of the screw rod, and the screw rod can be driven to rotate when the handwheel is rotated. A limiting groove is opened at the bottom inside the valve body 1, so that the blocking rod 5 can be located in the limiting groove after being inserted to the bottom, and the bottom of the blocking rod 5 is in closer contact with the valve body 1. The bottom of the blocking rod 5 is frustum-shaped, so that the bottom of the blocking rod 5 is convenient to insert into the limiting groove.

[0041] The upper cross section of the valve stem of the valve is an oblong shape matching the shaft hole 104. The hub 101 is installed on the valve stem. If it needs to be installed for a long time, the locking screw is screwed into the threaded hole on the outer wall of the hub 101 to press against the outer wall of the valve stem to complete the fixation. When the handwheel is installed on the side valve, the rocker 107 can be installed in the installation hole of the cylindrical protrusion 108, and the handwheel can be driven to rotate through the rocker. When starting to rotate the handwheel, the staff's hand is blocked by the anti-slip protrusion 105 to avoid slipping. At the same time, both the arc-shaped anti-slip protrusion 106 and the anti-slip pattern can play an auxiliary role in avoiding slipping.

Claims

1. A hand wheel open type rod valve, characterized in that It comprises a valve body (1), a valve flap (2) and a screw rod lifting mechanism (3). The inlet and outlet ends of the valve body (1) are respectively provided with connecting flanges, a crossbeam (4) is provided in the middle of the valve body (1), a group of rod holes are opened on the crossbeam (4), a group of blocking rods (5) are arranged in sequence at the bottom of the valve flap (2), and the blocking rods (5) are located in the corresponding rod holes, one end of the screw of the screw lifting mechanism (3) is movably mounted on the crossbeam (4), and the other end of the screw of the screw lifting mechanism (3) is movably mounted on the top of the valve body (1), and the valve flap (2) is driven to rise or fall through the screw lifting mechanism (3); A hand wheel is arranged at the top of the screw of the screw lifting mechanism (3), and the hand wheel comprises a hub (101) and a rim (102). The hub (101) is fixed at the center of the rim (102) through a pair of spokes (103). An axial hole (104) is opened on the hub (101), and a pair of anti-slip protrusions (105) are symmetrically distributed on the inner wall of the rim (102).

2. A hand wheel open type rod valve according to claim 1, characterized in that: The valve body (1) is a rectangular frame. Slide rails (6) are respectively arranged on the inner walls on both sides of the valve body (1). Slide grooves matching the slide rails (6) are respectively opened at both ends of the valve flap (2). The valve flap (2) is driven to rise or fall along the slide rails (6) through the screw rod lifting mechanism (3); the screw rod lifting mechanism (3) is composed of a screw rod and a screw rod nut. The screw rod nut is installed on one side of the valve flap (2). When the screw rod rotates, the valve flap (2) is driven to rise or fall through the screw rod nut.

3. A hand wheel open type rod valve according to claim 1, characterized in that: The blocking rod (5) is welded to the bottom of the valve disc (2); a limiting groove is provided at the bottom of the valve body (1); when the valve disc (2) drives the blocking rod (5) to drop to the lowest position, the bottom of the blocking rod (5) is located in the limiting groove.

4. A hand wheel opening rod valve according to claim 2, characterized in that: Reinforcing ribs are respectively arranged on the inner walls on both sides of the top of the valve body (1).

5. A hand wheel opening rod valve according to claim 1, characterized in that: The bottom of the blocking rod (5) is in the shape of a truncated cone.

6. A hand wheel opening rod valve according to claim 1, characterized in that: The shaft hole (104) is a long waist hole, and a pair of driving grooves are mirror-distributed on the top of the screw of the screw lifting mechanism (3), and the top of the screw of the screw lifting mechanism (3) is installed in the shaft hole (104); a threaded hole is opened on the outer wall of the wheel hub (101), and a locking screw is screwed into the threaded hole to fix the wheel hub (101) on the top of the valve stem.

7. A hand wheel open type rod valve according to claim 1, characterized in that: A plurality of groups of anti-slip patterns are arranged on the outer wall of the wheel rim (102).

8. A hand wheel opening rod valve according to claim 1, characterized in that: A group of arc-shaped anti-slip protrusions (106) are evenly distributed in an annular shape on the top of the wheel rim (102).

9. A hand wheel opening rod valve according to claim 1, characterized in that: A cylindrical protrusion (108) is provided at the connection between the spoke (103) and the rim (102); a mounting hole is provided at the center of the cylindrical protrusion (108); a crank (107) is provided in the mounting hole; the crank (107) is cylindrical; a screw is provided at the bottom of the crank (107) and is mounted in the mounting hole of the cylindrical protrusion (108) through the screw thread.

10. A hand wheel open type rod valve according to claim 1, characterized in that: Reinforcing ribs are respectively arranged on both sides of the connection between the wheel spokes (103) and the wheel rim (102); a pair of wheel spokes (103) and a pair of anti-slip protrusions (105) are arranged in a cross shape.

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