Long-barrel emptying valve with guiding function

Abstract

The utility model relates to a long-barrel emptying valve with a guiding function, which is characterized by comprising an upper barrel body, a lower barrel body, a valve rod, a valve head, a guiding piece and an annular guiding barrel, a handle is manually rotated to drive a valve rod to rotate, through cooperation of an internal thread and an external thread, the valve rod moves in an annular guide cylinder and an annular column in the upward moving process, the valve rod is guided, and through the effect of a second movable ball arranged at the inner end of the annular guide cylinder and a first movable ball arranged at the inner end of the annular column, the valve rod can move in the annular guide cylinder and the annular column; the friction force generated when the valve rod moves in the annular guide cylinder and the annular column is reduced, the situation that the valve rod deforms, the valve rod ascends and drives the valve head to move upwards, at the moment, the opening is opened, and materials enter the upper cylinder body and then are discharged from the discharging pipe is avoided. And meanwhile, the surface of the valve rod can be effectively prevented from being scratched and abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge valves, in particular to a long-tube discharge valve with a guide. Background Art

[0002] The long-barrel discharge valve is a device used to control the discharge of fluid or powder materials, usually used in material conveying systems in industrial production. It usually consists of a barrel, a valve, a discharge port and other components.

[0003] However, the valve stem in the long-tube discharge valve is prone to displacement or deformation (wear) after long-term use. Utility Model Content

[0004] The main purpose of the utility model is to provide a long tube discharge valve with a guide, which has solved the above-mentioned problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a long cylinder discharge valve with a guide, comprising an upper cylinder, a lower cylinder, a valve stem, a valve head, a guide member and an annular guide cylinder;

[0006] The upper cylinder is connected to the lower cylinder through a flange, an opening is provided at the upper end of the upper cylinder, the valve head is provided at the position of the opening, the upper end of the valve stem is rotatably connected to the lower end of the valve head, the lower end of the valve stem passes through the lower cylinder and is provided on a fixed seat, the inner wall of the fixed seat is provided with an internal thread, the outer wall of the lower end of the valve stem is provided with an external thread, the lower end of the valve stem is connected to the rotating handle, and a discharge pipe is provided on one side of the lower cylinder;

[0007] There are two guide members, which are respectively arranged in the upper cylinder body. The two guide members each include an annular column, a first movable ball and a fixed rod. The annular column is sleeved on the valve stem. A plurality of the first movable balls are arranged on the circumferential direction of the inner wall of the annular column. The annular column is connected to the inner wall of the upper cylinder body through the fixed rod. The lower end of the annular guide cylinder is connected to the bottom of the lower cylinder body. The valve stem is arranged to pass through the annular guide cylinder. A plurality of second movable balls are arranged in the annular guide cylinder.

[0008] The above-mentioned beneficial effect is that the handle is manually turned to drive the valve stem to rotate, and through the cooperation of the internal thread and the external thread, the valve stem moves in the annular guide cylinder and the annular column respectively during the upward movement, which guides the valve stem. The friction generated when the valve stem moves in the annular guide cylinder and the annular column is reduced by the second movable ball set at the inner end of the annular guide cylinder and the first movable ball set at the inner end of the annular column, thereby avoiding deformation of the valve stem. The valve stem rises and drives the valve head to move up. At this time, the opening is opened, and the material enters the upper cylinder and is discharged from the discharge pipe. Through such an arrangement, while guiding the valve stem, it can also effectively protect the valve stem surface from scratches and wear.

[0009] A preferred solution is that both sides of the fixing seat are connected to the bottom of the lower cylinder through connecting rods respectively.

[0010] A preferred solution is that the discharge pipe is adjustably arranged, and the discharge pipe has a fixed pipe and an adjusting pipe, the fixed pipe is connected to the lower cylinder, the outer end of the fixed pipe has an annular insertion groove, the inner end of the adjusting pipe is movably arranged in the annular insertion groove, the upper end of the annular insertion groove is provided with a plurality of guide notches, and movable plates are respectively arranged in the plurality of guide notches, the lower end of the movable plate is connected to the outer wall of the adjusting pipe, and the rear end of the movable plate is connected to the telescopic rod of the cylinder.

[0011] A preferred solution is that a scale is provided at the front end of one of the connecting rods, a plurality of insertion slots are provided at the rear side of the scale, and a disc is provided at the lower end of the valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a structural schematic diagram of a long tube discharge valve with a guide in a side sectional view and a plan view of the utility model;

[0014] Figure 2 It is a structural schematic diagram of a partial side sectional view of a long tube discharge valve with a guide of the utility model;

[0015] Figure 3 It is a structural schematic diagram of a partial side sectional view of a long tube discharge valve with a guide of the utility model;

[0016] Figure 4 The utility model is a partial structural schematic diagram of a long tube discharge valve with a guide. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0018] like Figures 1 to 4 As shown, the utility model provides a long cylinder discharge valve with a guide, comprising an upper cylinder 10, a lower cylinder 20, a valve stem 30, a valve head 40, a guide member 50 and an annular guide cylinder 60;

[0019] The upper cylinder 10 is connected to the lower cylinder 20 via a flange 5. An opening 11 is provided at the upper end of the upper cylinder 10. The valve head 20 is provided at the position of the opening 11. The upper end of the valve stem 30 is rotatably connected to the lower end of the valve head 20. The lower end of the valve stem 30 passes through the lower cylinder 20 and is provided on a fixed seat 70. The inner wall of the fixed seat 70 is provided with an internal thread. The outer wall of the lower end of the valve stem 30 is provided with an external thread 31. The lower end of the valve stem 30 is connected to the rotating handle 32. A discharge pipe 80 is provided on one side of the lower cylinder 20.

[0020] There are two guide members 50, which are respectively arranged in the upper cylinder 10. The two guide members 50 include an annular column 51, a first movable ball 52 and a fixed rod 53. The annular column 51 is sleeved on the valve stem 30. A plurality of the first movable balls 52 are arranged on the inner wall of the annular column 51 in the circumferential direction. The annular column 51 is connected to the inner wall of the upper cylinder 10 through the fixed rod 53. The lower end of the annular guide cylinder 60 is connected to the bottom of the lower cylinder 20. The valve stem 30 is arranged to pass through the annular guide cylinder 60. A plurality of second movable balls 61 are arranged in the annular guide cylinder 60.

[0021] During the working process, the handle 32 is manually rotated to drive the valve stem 30 to rotate. Through the cooperation of the internal thread and the external thread 31, the valve stem 30 moves in the annular guide cylinder 60 and the annular column 51 respectively during the upward movement, which guides the valve stem 30. The friction generated when the valve stem 30 moves in the annular guide cylinder 60 and the annular column 51 is reduced by the second movable ball 61 set at the inner end of the annular guide cylinder 60 and the first movable ball 52 set at the inner end of the annular column 51, thereby avoiding deformation of the valve stem 30. The valve stem 30 rises and drives the valve head 40 to move upward. At this time, the opening 11 is opened, and the material enters the upper cylinder 10 and is discharged from the discharge pipe 80. Through such an arrangement, while guiding the valve stem 30, it can also effectively protect the surface of the valve stem 30 from scratches and wear.

[0022] Preferably, both sides of the fixing seat 70 are connected to the bottom of the lower cylinder 20 through connecting rods 71 ​​respectively.

[0023] Preferably, the discharge pipe 80 is adjustably arranged, and the discharge pipe 80 has a fixed pipe 81 and an adjusting pipe 82, the fixed pipe 81 is connected to the lower cylinder 20, the outer end of the fixed pipe 81 has an annular insertion groove 83, the inner end of the adjusting pipe 82 is movably arranged in the annular insertion groove, and the upper end of the annular insertion groove 83 is provided with a plurality of guide notches 84, and a movable plate 85 is respectively arranged in the plurality of guide notches 84, the lower end of the movable plate 85 is connected to the outer wall of the adjusting pipe 82, and the rear end of the movable plate is connected to the telescopic rod of the cylinder 86.

[0024] When it is necessary to adjust the length of the discharge pipe 80, the cylinder 86 can be extended to move the movable plate 85 outward along the guide notch 84. At this time, the adjusting tube 82 moves inward and outward from the annular insertion groove 83, thereby lengthening the discharge pipe 80. Alternatively, the cylinder 86 can be contracted to move the movable plate 85 inward along the guide notch 84, thereby moving the adjusting tube 82 into the annular insertion groove 83, thereby shortening the discharge pipe 80. By adjusting the length of the discharge pipe 80, the production process can be made more flexible and can quickly respond to different production needs and process changes.

[0025] Preferably, a scale 101 is provided at the front end of one of the connecting rods 71 ​​, a plurality of insertion slots 102 are provided at the rear side of the scale 101 , and a disc 103 is provided at the lower end of the valve stem 30 .

[0026] In order to accurately position the height of the valve head 40 when it moves upward, a metal plate 1 is inserted into the insertion slot 102 of the corresponding scale. When the valve stem 30 rises, the disc 103 at the lower end of the valve stem 30 contacts the lower end of the metal plate 1, and the valve head 40 rises to the corresponding height position, and the size of the opening 11 is accurately positioned.

[0027] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of 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.

Claims

1. A long tube discharge valve with a guide, characterized in that: It includes an upper cylinder, a lower cylinder, a valve stem, a valve head, a guide piece and an annular guide cylinder; The upper cylinder is connected to the lower cylinder through a flange, an opening is provided at the upper end of the upper cylinder, the valve head is provided at the position of the opening, the upper end of the valve stem is rotatably connected to the lower end of the valve head, the lower end of the valve stem passes through the lower cylinder and is provided on a fixed seat, the inner wall of the fixed seat is provided with an internal thread, the outer wall of the lower end of the valve stem is provided with an external thread, the lower end of the valve stem is connected to a rotating handle, and a discharge pipe is provided on one side of the lower cylinder; There are two guide members, which are respectively arranged in the upper cylinder body. The two guide members each include an annular column, a first movable ball and a fixed rod. The annular column is sleeved on the valve stem. A plurality of the first movable balls are arranged on the circumferential direction of the inner wall of the annular column. The annular column is connected to the inner wall of the upper cylinder body through the fixed rod. The lower end of the annular guide cylinder is connected to the bottom of the lower cylinder body. The valve stem is arranged to pass through the annular guide cylinder. A plurality of second movable balls are arranged in the annular guide cylinder.

2. The long tube discharge valve with guide according to claim 1, characterized in that: The two sides of the fixing seat are connected to the bottom of the lower cylinder through connecting rods respectively.

3. The long tube discharge valve with guide according to claim 1, characterized in that: The discharge pipe is adjustable, and has a fixed pipe and an adjusting pipe. The fixed pipe is connected to the lower cylinder, the outer end of the fixed pipe has an annular insertion groove, the inner end of the adjusting pipe is movably arranged in the annular insertion groove, the upper end of the annular insertion groove is provided with a plurality of guide notches, and movable plates are respectively arranged in the plurality of guide notches, the lower end of the movable plate is connected to the outer wall of the adjusting pipe, and the rear end of the movable plate is connected to the telescopic rod of the cylinder.

4. The long tube discharge valve with guide according to claim 1, characterized in that: A scale is arranged at the front end of one of the connecting rods, a plurality of insertion slots are arranged at the rear side of the scale, and a disc is arranged at the lower end of the valve stem.

Images