Rotary feeding valve
By using an anti-blocking mechanism in the rotary feed valve, including the first straight pipe fitting, the second straight pipe fitting and the wire plugging, the problem of dust and material attachment in the air-exhaust hole is solved, and by extending the depth of the air-exhaust hole, the operator's fingers are prevented from being pinched, achieving safer and more reliable material transportation.
Patent Information
- Application Number
- CN202421839684.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
After the existing rotary feed valve is running for a long time, the dust and materials in the air-exhaust holes will adhere and harden, resulting in the formation of hard blocks, which may stagnate the rotor or mix into the material. At the same time, the operator is prone to extend his fingers into the inner cavity of the housing when screwing the air-exhaust pipe, which poses a risk of being clamped by the rotor.
A rotary feed valve is designed, and an anti-blocking mechanism is adopted, including a first straight pipe fitting, a second straight pipe fitting and a wire plug. The air-exhaust hole is filled with the sealing rod of the wire plug to prevent dust and materials from entering, and by extending the depth of the air-exhaust hole, the operator's fingers are prevented from extending into the inner cavity of the shell.
It effectively prevents dust and materials from adhering and hardening in the air vent, avoids the formation of hard blocks and the jamming of the rotor, and prevents the operator's fingers from being clamped by the rotor.
Smart Images
Figure CN223032375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic conveying devices, in particular to a rotary feeder valve. Background Art
[0002] As Figure 1 shown, a rotary feeder valve is a rotary device for quantitatively transporting materials. After the materials enter the housing 1, the blades 22 on the rotor 2 are relied on to evenly discharge the materials. Since the materials are transported in a closed system, sometimes the system pressure at the discharge port 12 is higher than the system pressure at the feed port 11, which will hinder the discharge of the materials. At this time, it is necessary to open an air extraction hole 13 on the housing 1 to discharge the gas and play a role in equalizing the system pressure.
[0003] As Figure 2 shown, when the rotary feeder valve does not need air extraction, the air extraction hole 13 can be blocked by screwing a plug 4 onto the air extraction hole 13. However, the following problems will exist: 1) After the rotary feeder valve operates for a long time, the dust and transported materials in the system will slowly adhere to the air extraction hole 13. After a long time, the dust or powder will become damp and harden into hard lumps (the hard lumps are like the shaded part in the air extraction hole 13 in Figure 2 . If not cleaned in time, the hard lumps will fall into the inner cavity of the housing 1 and mix into the materials, or fall into the gap between the inner cavity of the housing 1 and the rotor 2, causing the rotor 2 to be stuck. 2) When it is necessary to extract air from the inner cavity of the housing 1, the plug 4 needs to be unscrewed and the air extraction pipe needs to be screwed onto the air extraction hole 13. Since the depth of the air extraction hole 13 is generally less than 60 mm, when the operator is operating, the finger is likely to accidentally extend into the inner cavity of the housing 1. Once the finger extends into the inner cavity of the housing 1, there is a risk of being pinched by the rotor 2. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a rotary feeder valve to prevent dust and materials from adhering to the air extraction hole and prevent the operator's finger from being pinched.
[0005] To achieve the above object, the present utility model provides a rotary feeder valve, comprising: a housing, an inlet is provided at the top of the housing, a discharge port is provided at the bottom of the housing, and an air extraction hole is provided on the side of the housing; a rotor, the rotor is arranged inside the housing and conveys materials from the inlet to the discharge port; an anti-blocking mechanism, the anti-blocking mechanism includes a first straight pipe fitting, a second straight pipe fitting and a plugging member, external threads are respectively provided at opposite ends of the first straight pipe fitting, internal threads are respectively provided at opposite ends of the second straight pipe fitting, the plugging member includes a threaded body, a sealing rod is connected to the end face of the threaded body, one end of the first straight pipe fitting is threadedly connected to the air extraction hole, the opposite end of the first straight pipe fitting is threadedly connected to one end of the second straight pipe fitting, the opposite end of the second straight pipe fitting is threadedly connected to the threaded body, the sealing rod extends into the air extraction hole, and the central axis of the sealing rod coincides with the central axis of the air extraction hole.
[0006] Further, the first straight pipe fitting is a union with external threads provided at both ends.
[0007] Further, the second straight pipe fitting is a pipe coupling with internal threads provided at both ends.
[0008] Further, the plugging member is a plug with a sealing rod.
[0009] Further, the rotor includes a rotating shaft driven by a motor, and a plurality of blades are provided on the surface of the rotating shaft.
[0010] Further, the first straight pipe fitting is fixedly welded to the housing.
[0011] Further, the first straight pipe fitting is fixedly welded to the second straight pipe fitting.
[0012] Further, the end face of the second straight pipe fitting away from the housing is the first end face, the end face of the sealing rod away from the threaded body is the second end face, the perpendicular distance between the first end face and the second end face is 150 mm, and a preset gap is provided between the inner cavity of the housing and the second end face.
[0013] The beneficial effects of the present utility model are:
[0014] When air extraction is not required, the threaded body of the plugging member is threadedly connected to the second straight pipe fitting, while blocking the air extraction hole, the sealing rod can basically fill the inner cavity of the first straight pipe fitting, the inner cavity of the second straight pipe fitting and the air extraction hole. After the sealing rod basically fills the inner cavity of the first straight pipe fitting, the inner cavity of the second straight pipe fitting and the air extraction hole, it can effectively prevent dust and materials from entering;
[0015] When it is necessary to evacuate air, just screw the exhaust pipe onto the second straight pipe fitting. The setting of the first straight pipe fitting and the second straight pipe fitting is equivalent to extending the depth of the exhaust hole, which can effectively prevent the operator's fingers from entering the inner cavity of the shell, thereby preventing them from being pinched by the rotor. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0017] Figure 1 It is a structural diagram of a rotary feeder valve without a plug in the prior art;
[0018] Figure 2 It is a structural diagram of a rotary feeder valve with a thread plug in the prior art;
[0019] Figure 3 This is an overall structural diagram of a rotary feeding valve of the utility model;
[0020] Figure 4 for Figure 3 A partial enlarged view of
[0021] Figure 5 This is a structural diagram of a thread plug in a rotary feed valve of the utility model;
[0022] Figure 6 This is a structural diagram of a second straight pipe member in a rotary feeding valve of the utility model;
[0023] Figure 7 The utility model is a structural diagram of the first straight pipe member in a rotary feeding valve.
[0024] In the figure, 1, shell; 11, feed port; 12, discharge port; 13, exhaust hole; 2, rotor; 21, rotating shaft; 22, blade; 3, thread plug; 4, first straight pipe fitting; 5, second straight pipe fitting; 6, thread plug; 61, threaded body; 62, sealing rod. DETAILED DESCRIPTION
[0025] The following is combined with Figure 1 -Attached Figure 7 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.
[0027] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0028] In this application, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0029] In addition, the technical solutions between the various embodiments of this application can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0030] The present utility model provides a rotary feeder valve, comprising: a housing 1, an inlet 11 is provided at the top of the housing 1, a discharge port 12 is provided at the bottom of the housing 1, and an air extraction hole 13 is provided on the side of the housing 1; a rotor 2, the rotor 2 is arranged in the housing 1 and conveys materials from the inlet 11 to the discharge port 12, the rotor 2 includes a rotating shaft 21 driven by a motor, and a plurality of blades 22 are provided on the surface of the rotating shaft 21; an anti-blocking mechanism, the anti-blocking mechanism includes a first straight pipe fitting 4, a second straight pipe fitting 5 and a plug member 6, external threads are respectively provided at opposite ends of the first straight pipe fitting 4, internal threads are respectively provided at opposite ends of the second straight pipe fitting 5, the plug member 6 includes a threaded body 61, a sealing rod 62 is connected to the end face of the threaded body 61, one end of the first straight pipe fitting 4 is threadedly connected to the air extraction hole 13, the opposite end of the first straight pipe fitting 4 is threadedly connected to one end of the second straight pipe fitting 5, the opposite end of the second straight pipe fitting 5 is threadedly connected to the threaded body 61, the sealing rod 62 extends into the air extraction hole 13, and the central axis of the sealing rod 62 coincides with the central axis of the air extraction hole 13.
[0031] In the technical solution proposed by this application, when air extraction is not required, the threaded body 61 of the plug member 6 is threadedly connected to the second straight pipe member 5. While blocking the air extraction hole 13, the sealing rod 62 can substantially fill the inner cavity of the first straight pipe member 4, the inner cavity of the second straight pipe member 5, and the air extraction hole 13. After the sealing rod 62 substantially fills the inner cavity of the first straight pipe member 4, the inner cavity of the second straight pipe member 5, and the air extraction hole 13, it can effectively prevent dust and materials from entering; when air extraction is required, just screw the air extraction pipe onto the second straight pipe member 5. The settings of the first straight pipe member 4 and the second straight pipe member 5 are equivalent to extending the depth of the air extraction hole 13, which can effectively prevent the operator's fingers from reaching into the inner cavity of the housing 1, thereby preventing being pinched by the rotor 2.
[0032] In a preferred embodiment, regarding the selection of the first straight pipe member 4, the second straight pipe member 5, and the plug member 6, a further improvement of the present utility model is that the first straight pipe member 4 is a coupling with external threads at both ends, the second straight pipe member 5 is a pipe coupling with internal threads at both ends, and the plug member 6 is a plug with a sealing rod. The coupling, the pipe coupling, and the plug with a sealing rod are all common components in the prior art and are more convenient to use.
[0033] In a preferred embodiment, in order to further prevent fingers from being pinched by the rotor 2, a further improvement of the present utility model is that the first straight pipe member 4 is fixedly welded to the housing 1, and the first straight pipe member 4 is fixedly welded to the second straight pipe member 5. After the first straight pipe member 4 is fixedly welded to the housing 1 and the first straight pipe member 4 is fixedly welded to the second straight pipe member 5, the housing 1, the first straight pipe member 4, and the second straight pipe member 5 form an integral structure, that is, the housing 1, the coupling, and the pipe coupling form an integral structure. When the air extraction pipe is screwed onto the pipe coupling, the pipe coupling, the coupling, and the housing 1 will not separate from each other, further preventing fingers from reaching into the inner cavity of the housing 1, thereby further preventing fingers from being pinched by the rotor 2.
[0034] The end face of the second straight pipe member 5 away from the housing 1 is the first end face, and the end face of the sealing rod 62 away from the threaded body 61 is the second end face. The perpendicular distance between the first end face and the second end face is 150 mm, and a preset gap is provided between the inner cavity of the housing 1 and the second end face.
[0035] The above are only the preferred embodiments of this application, and do not limit the patent scope of this application accordingly. Any equivalent structural transformation made under the inventive concept of this application by using the content of the specification and drawings of this application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of this application.
Claims
1. A rotary feed valve, characterized in that: include: A shell, wherein a feed port is provided at the top of the shell, a discharge port is provided at the bottom of the shell, and an air extraction hole is provided at the side of the shell; A rotor, the rotor is disposed in the housing and transports the material from the feed port to the discharge port; An anti-blocking mechanism, the anti-blocking mechanism includes a first straight pipe fitting, a second straight pipe fitting and a threaded plugging piece, the opposite ends of the first straight pipe fitting are respectively provided with external threads, the opposite ends of the second straight pipe fitting are respectively provided with internal threads, the threaded plugging piece includes a threaded body, the end surface of the threaded body is connected with a sealing rod, one end of the first straight pipe fitting is threadedly connected to the exhaust hole, the other end of the first straight pipe fitting is threadedly connected to one end of the second straight pipe fitting, the other end of the second straight pipe fitting is threadedly connected to the threaded body, the sealing rod extends into the exhaust hole, and the central axis of the sealing rod coincides with the central axis of the exhaust hole.
2. The rotary feeder valve according to claim 1, characterized in that: The first straight pipe piece is a threaded piece with external threads at both ends.
3. The rotary feed valve according to claim 2, characterized in that: The second straight pipe piece is a pipe clamp with internal threads at both ends.
4. The rotary feeder valve according to claim 3, characterized in that: The thread plugging piece is a thread plugging piece with a sealing rod.
5. The rotary feeder valve according to claim 1, characterized in that: The rotor comprises a rotating shaft driven by a motor, and a plurality of blades are arranged on the surface of the rotating shaft.
6. The rotary feeder valve according to claim 1, characterized in that: The first straight pipe member is fixed to the shell by welding.
7. The rotary feeder valve according to claim 6, characterized in that: The first straight pipe member and the second straight pipe member are fixed by welding.
8. The rotary feeder valve according to claim 1, characterized in that: The end face of the second straight pipe away from the shell is the first end face, the end face of the sealing rod away from the threaded body is the second end face, the vertical distance between the first end face and the second end face is 150 mm, and a preset gap is provided between the inner cavity of the shell and the second end face.