Sealing door structure of dry type granulator

Abstract

The utility model discloses a sealing door structure of a dry type granulator, which comprises a machine box of the granulator and a door plate, the door plate is flush with the side wall of the machine box after being closed, one side of the door plate is connected with the machine box through a hinge, two step surfaces extending inwards are arranged on the edge of the inner side of the door plate, and the door plate is arranged on the door plate. The two step surfaces are respectively a first step surface and a second step surface from outside to inside; the first step surface is a right-angle step surface, and the second step surface is an inclined step surface; a first sealing strip is arranged at the joint of the right-angle part of the first step surface and the case, and a second sealing strip is arranged at the joint of the second step surface and the case; a male head of a safety lock is further arranged on the first step face of the top of the inner side of the door plate, a female head of the safety lock is arranged at the corresponding position of the machine box, and the safety lock is connected with a control system. The door plate is flush with the side wall of the case after being closed, attractiveness is good, sealing performance is good, the service life of the sealing strip is long, the door plate cannot be opened in the production process, and safety is good.

Description

Technical Field

[0001] This utility model relates to the field of dry granulation machines, and in particular to a sealing door structure for a dry granulation machine. Background Technology

[0002] Existing dry granulation machines use hinges to connect the door panel to the side panel of the casing. Generally, the door panel and sealing strip protrude from the outside of the casing side wall. This type of sealing structure increases the overall space occupied by the equipment and reduces its aesthetic appeal. Furthermore, the protruding sealing strip is in direct contact with the external environment, leading to faster aging, shorter replacement cycles, and higher costs. Additionally, existing dry granulation machine doors are typically rectangular. For example, Chinese patent CN111036141A discloses a laboratory dry granulation machine, where the door panel is rectangular as seen in the attached drawings. This type of door, with its four right angles, poses a risk of injury or scratches to workers opening the door for maintenance. Moreover, existing doors are typically locked to the casing using ordinary locks, which can be opened while the granulator is operating. If a worker accidentally opens the door while the granulator is running, it could cause a safety accident. Utility Model Content

[0003] The purpose of this invention is to provide a sealing door structure for a dry granulation machine.

[0004] The innovation of this utility model is as follows: the door panel is flush with the side wall of the chassis after being closed, which is aesthetically pleasing. Two stepped surfaces are provided on the inner side of the door panel, and a sealing strip is provided at the joint between the stepped surfaces and the chassis, which provides good sealing performance and a long service life. A safety lock is provided to ensure that the door panel cannot be opened during production, which provides good safety.

[0005] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:

[0006] A sealing door structure for a dry granulator includes a granulator housing and a door panel. When closed, the door panel is flush with the side wall of the housing. One side of the door panel is connected to the housing via a hinge. The inner edge of the door panel has two inwardly extending stepped surfaces, designated as a first stepped surface and a second stepped surface from the outside in. The first stepped surface is a right-angled stepped surface, and the second stepped surface is a sloping stepped surface. A first sealing strip is provided at the right-angle point of the first stepped surface where it contacts the housing, and a second sealing strip is provided at the contact point of the second stepped surface with the housing. A male safety lock connector is also provided on the top of the first stepped surface on the inner side of the door panel, and a female safety lock connector is provided at a corresponding position on the housing. The safety lock is connected to a control system. The safety lock is located between the first and second sealing strips.

[0007] Furthermore, a door lock is also provided on the other side of the door panel.

[0008] Furthermore, the four corners of the door panel edge are rounded chamfers.

[0009] The beneficial effects of this utility model are:

[0010] First, this application features two inwardly extending stepped surfaces, forming a wedge-like shape. Each stepped surface has a sealing strip at its contact with the side wall of the chassis, ensuring good sealing. Furthermore, the sealing strip is concealed inside the door panel, preventing contact with the external environment and guaranteeing its service life, thus reducing replacement and maintenance costs. When the door panel is closed, it is flush with the side wall of the chassis, occupying less space and improving aesthetics. A safety lock is installed, controlled by a control system, to ensure that the door panel cannot be opened during granulation, preventing accidental operation and ensuring production safety.

[0011] Second: The edges of the door panels in this application are all rounded and chamfered, which can prevent operators from being bumped or scratched when opening the door panels for maintenance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a side view of the present invention.

[0014] In the diagram: 10 is the chassis, 20 is the door panel, 21 is the first step surface, 22 is the second step surface, 23 is the first sealing strip, 24 is the second sealing strip, 30 is the hinge, 40 is the safety lock, 41 is the male connector, 42 is the female connector, and 50 is the door lock. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0016] A sealing door structure for a dry granulator includes a casing 10 and a door panel 20. When closed, the door panel 20 is flush with the side wall of the casing 10. One side of the door panel 20 is connected to the casing 10 via a hinge 30. Two inwardly extending stepped surfaces are provided on the inner edge of the door panel 20, namely a first stepped surface 21 and a second stepped surface 22 from the outside to the inside. The first stepped surface 21 is a right-angled stepped surface, and the second stepped surface 22 is a sloping stepped surface. A first sealing strip 23 is provided at the right-angle point of the first stepped surface 21 where it contacts the casing 10, and a second sealing strip 24 is provided at the contact point of the second stepped surface 22 with the casing 10. A male connector 41 of a safety lock 40 is also provided on the top inner side of the first stepped surface 21 of the door panel 20, and a female connector 42 of the safety lock 40 is provided at a corresponding position on the casing 10. The safety lock 40 is connected to a control system. The safety lock 40 is located between the first sealing strip 23 and the second sealing strip 24.

[0017] Furthermore, the hinge 30 is connected to the chassis 10 by bolts, and the hinge 30 can be a standard part purchased from the market.

[0018] Furthermore, the control system is the control system of the dry granulator, which will not be described in detail here; when the granulator starts granulation, the control system first powers on the female head 42 of the safety lock 40 and automatically locks the male head 41 inserted inside, thereby locking the safety lock 40, and then starts granulation. During the granulation process, the safety lock 40 is in a locked state.

[0019] Furthermore, a door lock 50 is also provided on the other side of the door panel 20. Even if the door lock 50 is opened during the granulation process, the door panel 20 cannot be opened because the safety lock 40 is locked, thus ensuring the safety of the production process.

[0020] Furthermore, the four corners of the edge of the door panel 20 are rounded chamfers.

[0021] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A sealing door structure for a dry granulator, comprising a granulator housing (10) and a door panel (20), characterized in that: After the door panel (20) is closed, it is flush with the side wall of the chassis (10). One side of the door panel (20) is connected to the chassis (10) by a hinge (30). The inner edge of the door panel (20) is provided with two inwardly extending stepped surfaces, which are the first stepped surface (21) and the second stepped surface (22) from the outside to the inside. The first stepped surface (21) is a right-angled stepped surface, and the second stepped surface (22) is a sloping stepped surface. The right angle of the first stepped surface (21) fits against the chassis (10). A first sealing strip (23) is provided at the junction of the second step surface (22) and the chassis (10); a second sealing strip (24) is provided at the junction of the second step surface (22) and the chassis (10); a male head (41) of a safety lock (40) is also provided on the first step surface (21) on the top inner side of the door panel (20); a female head (42) of a safety lock (40) is provided at the corresponding position on the chassis (10); the safety lock (40) is connected to the control system; the safety lock (40) is located between the first sealing strip (23) and the second sealing strip (24).

2. The sealing door structure of a dry granulation machine according to claim 1, characterized in that: A door lock (50) is also provided on the other side of the door panel (20).

3. The sealing door structure of a dry granulation machine according to claim 1, characterized in that: The four corners of the edge of the door panel (20) are rounded.

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