Dust-free hopper
By designing a dust-free hopper and utilizing a combination of a fixed rod and a pressure relief filter, the problem of dust leakage during the hopper discharge process was solved, achieving dust-free discharge and a dust-free environment in the cleanroom.
Patent Information
- Application Number
- CN202520736964.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Dust leakage can occur during the discharge process of a cleanroom hopper, affecting the cleanroom environment.
A dust-free hopper was designed, comprising a micro-motion hopper, a fixed rod, an oil seal, and a pressure relief filter. The discharge is controlled by rotating the fixed rod, the oil seal seals the air, and the pressure relief filter provides clean air to relieve pressure, ensuring that the inside of the base is dust-free.
It achieves dust-free discharge of granular materials, maintains a dust-free state inside the hopper, and ensures a clean environment in the cleanroom.
Smart Images
Figure CN223920570U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of medical product dustless environment especially relates to a dustless hopper. BACKGROUND
[0002] The dustless hopper is applied in the medical product dustless workshop, and in the process of discharging and pressure relief, dust is leaked into the dustless workshop due to the conveying material, and then the dust is polluted to the outside periphery of the base, which affects the dustless requirement of the purification workshop. UTILITY MODEL CONTENTS
[0003] One purpose of the utility model is to provide a dustless hopper, which keeps the discharging position of granular material clean and dustless and guarantees the neatness of storage.
[0004] To achieve the purpose, the utility model adopts the following technical scheme:
[0005] A dustless hopper, including base, micro-motion hopper and fixed rod, the micro-motion hopper is fixed above the base, the inside of the base is fixed with the blanking inclined mouth, the lower end of the micro-motion hopper is connected with the blanking inclined mouth, the both sides of the base are provided with oil seal respectively, the both ends of the fixed rod pass through two oil seals respectively, the middle part of the fixed rod is installed with tongue piece, the tongue piece covers the lower end of the blanking inclined mouth, the side of the base is fixed with pressure relief filter.
[0006] As a preferred technical scheme, the outside of the base is fixed with fixed sheet, the fixed sheet is installed with proximity switch, the first end of the fixed rod is fixed with eccentric induction piece, the eccentric induction piece is signal connected with the proximity switch.
[0007] As a preferred technical scheme, the both sides of the base are fixed with fixed seat, the oil seal is in the inside of the fixed seat.
[0008] As a preferred technical scheme, the second end of the fixed rod is downwardly inclined and bent and is connected with counterweight.
[0009] As a preferred technical scheme, the pressure relief filter is provided with filter core screen around.
[0010] As a preferred technical scheme, the base is provided with connecting pipe, the inside of the connecting pipe is provided with internal thread, the connecting section outside of the pressure relief filter is provided with external thread, the external thread is screw-locked with the internal thread.
[0011] As a preferred technical scheme, the micro-motion hopper is provided with barrel body and barrel cover, the outside upper end of the barrel body is provided with elastic fastener, the elastic fastener is buckled on the brim of the barrel cover.
[0012] The dust-free hopper is used for controlling the amount of falling material, and after reaching the set weight, the fixed rod is rotated, and the tongue piece is opened to discharge material. BRIEF DESCRIPTION OF DRAWINGS
[0013] The utility model will be further explained in detail in connection with the drawings and embodiments.
[0014] Figure 1 The dust-free hopper is used for controlling the amount of falling material, and after reaching the set weight, the fixed rod is rotated, and the tongue piece is opened to discharge material.
[0015] Figure 2 The dust-free hopper is used for controlling the amount of falling material, and after reaching the set weight, the fixed rod is rotated, and the tongue piece is opened to discharge material.
[0016] Figure 3 The dust-free hopper is used for controlling the amount of falling material, and after reaching the set weight, the fixed rod is rotated, and the tongue piece is opened to discharge material.
[0017] Figure 4 The dust-free hopper is used for controlling the amount of falling material, and after reaching the set weight, the fixed rod is rotated, and the tongue piece is opened to discharge material.
[0018] Figures 1 to 4 In the embodiment, the dust-free hopper comprises a base 1, a micro-motion hopper 2 and a fixed rod 3.
[0019] 1, base; 2, micro-motion hopper; 3, fixed rod; 4, falling material bevel; 5, oil seal; 6, tongue piece; 7, pressure relief filter; 8, fixed sheet; 9, proximity switch; 10, eccentric sensing element; 11, fixed seat; 12, counterweight; 13, filter core screen; 14, connecting pipe; 15, barrel body; 16, barrel cover; 17, elastic fastener. DETAILED DESCRIPTION
[0020] The utility model will be further explained in detail in connection with the drawings and embodiments.
[0021] As shown in the embodiment, a dust-free hopper comprises a base 1, a micro-motion hopper 2 and a fixed rod 3. Figures 1 to 4 The micro-motion hopper 2 is fixed above the base 1, the base 1 is internally fixed with a falling material bevel 4, the lower end of the micro-motion hopper 2 is connected with the falling material bevel 4, the two sides of the base 1 are respectively provided with oil seals 5, the two ends of the fixed rod 3 respectively pass through the two oil seals 5, the middle part of the fixed rod 3 is installed with a tongue piece 6, the tongue piece 6 covers the lower end of the falling material bevel 4, and the side of the base 1 is fixed with a pressure relief filter 7.
[0022] The granular material is loaded in the micro-motion hopper 2, and under the action of gravity, the granular material is accumulated in the falling chute 4 in the base 1 and is supported by the tongue 6. When the weight reaches the critical value, the tongue 6 is opened, and the linkage fixed rod 3 is rotated. During the rotation of the fixed rod 3, the oil seal 5 at both ends ensures that the air outside the base 1 cannot enter the base 1. After the granular material falls down, the pressure relief filter 7 brings clean air into the base 1, forming a stable space.
[0023] The fixed sheet 8 is fixed outside the base 1, and the proximity switch 9 is installed on the fixed sheet 8. The first end of the fixed rod 3 is fixed with the eccentric sensing part 10, which is signal-connected with the proximity switch 9. During the rotation of the fixed rod 3, the eccentric sensing part 10 makes the proximity switch 9 sense, and then controls the fixed rod 3 to reset.
[0024] The fixed seat 11 is fixed on both sides of the base 1, and the oil seal 5 is inside the fixed seat 11. The oil seal 5 in the fixed seat 11 has good sealing performance.
[0025] The second end of the fixed rod 3 is downwardly and obliquely bent and connected with the counterweight 12. According to the different weights of the granular material, different counterweights 12 are matched to automatically discharge the material, which drives the fixed rod 3 to rotate, so as to open the tongue 6 for discharging the material.
[0026] The filter core screen 13 is arranged around the pressure relief filter 7. After discharging, part of the air is taken away, and the external gas enters the inside of the base 1 through the filter core screen 13 to supplement the air.
[0027] The connecting pipe 14 is arranged on the base 1, and the inner side of the connecting pipe 14 is provided with an internal thread. The outer side of the connecting section of the pressure relief filter 7 is provided with an external thread. The external thread is thread-locked with the internal thread. When the pressure relief filter 7 is installed, it can be directly locked on the connecting pipe 14 of the base 1 by rotating the pressure relief filter 7, so that the installation is convenient.
[0028] The barrel body 15 and the barrel cover 16 are arranged on the micro-motion hopper 2. The elastic buckle 17 is arranged on the outer side of the upper end of the barrel body 15, and the elastic buckle 17 is buckled on the edge of the barrel cover 16. The barrel cover 16 can be opened from the elastic buckle 17 for cleaning or observation.
[0029] It should be noted that the above specific embodiments are only the preferred embodiments of the present application and the technical principles applied, and any changes or replacements easily thought of by those skilled in the art within the technical range disclosed by the present application should be covered within the protection range of the present application.
Claims
1. A dust-tight hopper, characterized in that Including base, micro hopper and fixed rod, the micro hopper is fixed above the base, the inside of the base is fixed with blanking chute, the lower end of the micro hopper is connected with the blanking chute, the both sides of the base are respectively provided with oil seal, the both ends of the fixed rod respectively pass through two oil seals, the middle part of the fixed rod is installed with tongue, the tongue covers the lower end of the blanking chute, the side of the base is fixed with pressure relief filter.
2. A dust-tight hopper according to claim 1, characterised in that The outside of the base is fixed with fixed sheet, the fixed sheet is installed with proximity switch, the first end of the fixed rod is fixed with eccentric induction piece, the eccentric induction piece is signal connected with the proximity switch.
3. A dust-free hopper according to claim 1, characterized in that The both sides of the base are fixed with fixed seat, the oil seal is in the inside of the fixed seat.
4. A dustless hopper according to claim 1, wherein The second end of the fixed rod is downwardly inclined and bent and is connected with counterweight.
5. A dust-tight hopper according to claim 1, wherein The pressure relief filter is surrounded with filter core screen.
6. A dust-tight hopper according to claim 1, wherein The inside of the connecting pipe of the base is provided with internal thread, the outside of the connecting section of the pressure relief filter is provided with external thread, the external thread is thread locked with the internal thread.
7. A dust-tight hopper according to claim 1, wherein The micro hopper is provided with barrel body and barrel cover, the outside of the upper end of the barrel body is provided with elastic buckle, the elastic buckle is buckled on the edge of the barrel cover.