阅读说明：本技术 一种设置有风扇保持内外气压平衡的结构及其工作原理 (Structure provided with fan and used for keeping balance of internal air pressure and external air pressure and working principle of structure ) 是由 黄海蓉 肖刚 黄正辉 于 2020-06-08 设计创作，主要内容包括：本发明公开了一种设置有风扇保持内外气压平衡结构及其工作原理,包括速冻机壳体、速冻机出口、观察机构、传动机构和调节机构,速冻机壳体的一侧开凿有速冻机出口,速冻机壳体的外部与速冻机出口相邻的一侧设置有观察机构,速冻机壳体的内壁且位于速冻机出口的上方设置有传动机构,本发明结构紧凑,操作简单便捷,实用性强,通过设置观察机构,便于更好的观察速冻机出口处的气压变化情况,同时通过设置调节机构,通过伺服电机带动风扇进行转动,从而对速冻机出口处的气压进行平衡,减少空气过量的流入或流出,进而提高速冻机的冷冻效率,此外通过设置传动机构,使得风扇可以左右进行来回摆动,从而增加风扇作用的面积,提高设备的工作范围。(The invention discloses a structure with a fan for keeping balance of internal and external air pressure and a working principle thereof, comprising a quick freezer shell, a quick freezer outlet, an observation mechanism, a transmission mechanism and an adjusting mechanism, wherein the quick freezer outlet is drilled on one side of the quick freezer shell, the observation mechanism is arranged on one side of the outer part of the quick freezer shell adjacent to the quick freezer outlet, and the transmission mechanism is arranged on the inner wall of the quick freezer shell and above the quick freezer outlet. The fan can swing back and forth from left to right, so that the acting area of the fan is increased, and the working range of the equipment is enlarged.)

1. The utility model provides a be provided with fan and keep inside and outside atmospheric pressure balanced structure, its characterized in that, including quick-freezer casing (1), quick-freezer export (2), observation mechanism (3), drive mechanism (4) and adjustment mechanism (5), quick-freezer export (2) have been dug to one side of quick-freezer casing (1), the outside of quick-freezer casing (1) is provided with observation mechanism (3) with quick-freezer export (2) adjacent one side, the inner wall of quick-freezer casing (1) and the top that is located quick-freezer export (2) are provided with drive mechanism (4), the bottom of drive mechanism (4) one side is provided with adjustment mechanism (5).

2. The structure for keeping balance of internal and external air pressure by the fan as claimed in claim 1, wherein the observation mechanism (3) comprises a through hole (31), a through hole (31) is drilled at one side of the outside of the quick freezer shell (1) adjacent to the quick freezer outlet (2), a transmission box (32) is fixedly connected to the outside of the quick freezer shell (1) and located at the outer side of the through hole (31), an exhaust hole (33) is drilled at one side of the outside of the transmission box (32) close to the through hole (31), a buffer groove (34) is drilled inside the transmission box (32), a sliding groove (35) is drilled at one side of the inner wall of the buffer groove (34) far away from the exhaust hole (33), a sliding rod (36) is slidably connected to the inside of the sliding groove (35), and a piston (37) is fixedly connected to one end of the sliding rod (36) close to the exhaust hole (33), the piston (37) is connected with the buffer groove (34) in a sliding mode, and a first return spring (38) is sleeved on the outer side of the sliding rod (36) and located between the piston (37) and the inner wall of the buffer groove (34).

3. The structure provided with the fan for keeping internal and external air pressure balance is characterized in that the transmission mechanism (4) comprises a mounting plate (41), the inner wall of the quick freezer shell (1) is positioned above the quick freezer outlet (2) and is connected with two mounting plates (41) of an L-shaped structure through screws, a transverse plate (42) is fixedly connected between the two mounting plates (41), one end, far away from the through hole (31), of the top of the transverse plate (42) is fixedly connected with a transmission box (43), the outer side of the transmission box (43) is fixedly provided with a first servo motor (44), an output shaft of the first servo motor (44) extends to the inside of the transmission box (43) and is fixedly connected with a rotating disc (45), the outer side of the rotating disc (45) is fixedly connected with a fixing column (46), and limiting rods (47) are fixedly connected between the bottom and the top of the inner wall of the transmission box (43) and positioned on two sides of the rotating disc (45) ) The outer side of the limiting rod (47) is connected with sliding sleeves (48) in a sliding mode, two transmission rods (49) are fixedly connected between the sliding sleeves (48), a limiting groove (410) is formed in the outer side of each transmission rod (49), the fixing columns (46) extend into the limiting groove (410) and are connected with the limiting groove (410) in a sliding mode, a limiting hole (411) is formed in one side, away from the rotating disc (45), of each transmission box (43), a moving groove (412) is formed in the top and the bottom of the inner wall of each transmission box (43) and located in one side of the corresponding limiting hole (411), moving blocks (413) are connected into the inner portions of the moving grooves (412) in a sliding mode, transmission blocks (414) are fixedly connected between the two moving blocks (413), two second return springs (415) are fixedly connected to one side, close to the limiting hole (411), of each transmission block (414), and one ends, away from the transmission blocks (414), of the second return springs (415) are fixed to the inner wall of the transmission The connection, the transmission piece (414) is close to one side of spacing hole (411) and is located the below fixedly connected with carriage release lever (416) of second return spring (415), spacing hole (411) is run through and the outside that extends to transmission box (43) is gone away from to the one end of transmission piece (414) of carriage release lever (416), one of them sliding sleeve (48) is close to one side fixedly connected with installation pole (417) of transmission piece (414), the one end rotation that sliding sleeve (48) was kept away from to installation pole (417) is connected with gyro wheel (418).

4. A structure provided with a fan for keeping internal and external air pressure balance according to claim 1, wherein the adjusting mechanism (5) comprises a sliding block (51), the sliding block (51) is slidably connected to one side of the transmission box (43) and outside the transverse plate (42), a fixed rod (52) is fixedly connected to the top of the sliding block (51), a second servo motor (53) is fixedly installed at the bottom of the sliding block (51), and a fan (54) is fixedly connected to an output shaft of the second servo motor (53).

5. The structure for keeping balance of internal and external air pressure by the fan is set according to claim 2, characterized in that scale marks are set on the outer side of the sliding rod (36), one end of the sliding rod (36) far away from the piston (37) extends to the outer side of the transmission box (32) through the sliding groove (35), a connecting plate (39) is fixedly connected to the outer part of the transmission box (32) far away from one side of the quick freezer shell (1) and above the sliding groove (35), and a pointer (310) is fixedly connected to the bottom of the connecting plate (39).

6. A structure for keeping balance of air pressure inside and outside provided with a fan as claimed in claim 3, wherein the fixed column (46) and the rotating disc (45) are connected eccentrically.

7. A structure for keeping balance of air pressure inside and outside with a fan according to claim 3, wherein one side of the driving block (414) near the rotating disk (45) is provided with a one hundred and ten degree slope, and the roller (418) is in contact with the slope of the driving block (414).

8. A structure for keeping balance of internal and external air pressures with fan according to claim 4 is characterized in that the first servo motor (44) and the second servo motor (53) are both electrically connected with the external control mechanism of the instant freezer.

9. The working principle of the structure for keeping the balance of internal and external air pressures by the fan is characterized by comprising the following steps of:

s1, electrifying the equipment, controlling the instant freezer to work, and controlling the first servo motor (44) and the second servo motor (53) to work through an external control mechanism;

s2, a first servo motor (44) drives a rotating disc (45) to rotate, a transmission rod (49) and a sliding sleeve (48) are driven to move up and down on the surface of a limiting rod (47) through the matching between a fixed column (46) and a limiting groove (410), so that an installation rod (417) and a roller (418) are driven to move up and down, the roller (418) is matched with the inclined surface of a transmission block (414) to push the transmission block (414) to move, so that a moving rod (416) is driven to move, the second return spring (415) is matched with the transmission block to enable the moving rod (416) to move left and right in a reciprocating mode, so that a sliding block (51) is pushed to move left and right on the outer side of a transverse plate (42) through a fixed rod (52), and the sliding block (51) drives a second servo motor (53) and a fan (54) to move left and right, so that the working range;

s3, the second servo motor (53) drives the fan (54) to rotate, so that air pressure adjustment is carried out on the outlet (2) of the instant freezer, excessive inflow or outflow of air is reduced, and freezing efficiency of the instant freezer is improved;

s4, simultaneously, the air pressure change condition at the outlet (2) of the instant freezer can be observed through the matching between the scale mark at the outer side of the sliding rod (36) and the pointer (310), when the air pressure at the outlet of the instant freezer is larger, the air pressure can push the piston (37) to slide in the buffer groove (34), so as to extrude the first return spring (38) and drive the sliding rod (36) to move outwards, at the moment, the position of the pointer (310) changes, when the air pressure at the outer part of the outlet of the instant freezer is larger, the sliding rod (36) and the piston (37) are driven to return under the action of the first return spring (38), the inflow or outflow condition of the air at the outlet (2) of the instant freezer can be judged through observing the relative position change between the scale mark on the sliding rod (36) and the pointer (310), and the working strength of the second servo motor (53) can be adjusted according to the air pressure change condition, thereby achieving the purpose of balancing the air pressure inside and outside the outlet (2) of the instant freezer.

Technical Field

The invention belongs to the field of air pressure balance structures, and particularly relates to a structure provided with a fan and used for keeping internal and external air pressure balance and a working principle thereof.

Background

In the present life, the frozen machine wide application is in frozen food, and the principle of traditional frozen machine reaches frozen effect through changing the inside air flow of frozen machine, traditional frozen machine is lower in the temperature that is close to the exit, it is great with external difference in temperature, lead to there being great atmospheric pressure difference inside and outside the frozen machine, thereby cause the inflow of air excess or flow easily, and traditional frozen machine mostly does not handle it, make the product at the quick-freeze effect of the exit position of frozen machine relatively poor, be unfavorable for the use, still can cause a large amount of energy waste simultaneously.

The invention content is as follows:

the present invention is directed to solving the above problems, and provides a structure with a fan to maintain balance between internal and external air pressures and a working principle thereof, which solves the problems mentioned in the background art.

In order to solve the above problems, the present invention provides a technical solution:

the utility model provides a be provided with inside and outside atmospheric pressure balanced structure of fan maintenance, includes quick-freezer casing, frozen machine export, observation mechanism, drive mechanism and adjustment mechanism, the frozen machine export has been dug to one side of quick-freezer casing, the outside of quick-freezer casing is provided with observation mechanism with the adjacent one side in frozen machine export, the inner wall of quick-freezer casing and the top that is located the frozen machine export are provided with drive mechanism, the bottom of drive mechanism one side is provided with adjustment mechanism.

As preferred, observation mechanism includes the through-hole, the outside of quick-freezer casing is excavated with one side that the quick-freezer export is adjacent has the through-hole, the outside of quick-freezer casing and the outside fixedly connected with transmission box that is located the through-hole, the outside of transmission box is excavated one side that is close to the through-hole has the exhaust hole, the inside of transmission box is excavated there is the dashpot, the one side that the exhaust hole was kept away from to the inner wall of dashpot is excavated there is the spout, the inside sliding connection of spout has the slide bar, the one end fixedly connected with piston that the slide bar is close to the exhaust hole, piston and dashpot sliding connection, the cover has first return spring in the outside of slide bar and is located between the inner wall of piston.

Preferably, the transmission mechanism comprises mounting plates, two mounting plates with L-shaped structures are connected to the inner wall of the quick freezer shell and positioned above the outlet of the quick freezer through screws, a transverse plate is fixedly connected between the two mounting plates, a transmission box is fixedly connected to one end, far away from the through hole, of the top of the transverse plate, a first servo motor is fixedly mounted on the outer side of the transmission box, an output shaft of the first servo motor extends to the inside of the transmission box and is fixedly connected with a rotating disc, a fixed column is fixedly connected to the outer side of the rotating disc, limiting rods are fixedly connected to the two sides of the rotating disc and between the bottom and the top of the inner wall of the transmission box, sliding sleeves are slidably connected to the outer sides of the limiting rods, a transmission rod is fixedly connected between the two sliding sleeves, a limiting groove is formed in the outer side of the transmission rod, and the fixed column extends to the inside, one side of the transmission box, which is far away from the rotating disc, is provided with a limiting hole, a moving groove is formed in the top and the bottom of the inner wall of the transmission box, one side of the transmission box, which is located in the limiting hole, is provided with a moving block, two moving blocks are connected inside the moving groove in a sliding mode, the transmission block is fixedly connected with the transmission block, two second return springs are fixedly connected to one side, which is close to the limiting hole, of the transmission block, one end, which is far away from the transmission block, of each second return spring is fixedly connected with the inner wall of the transmission box, the transmission block is close to one side of the limiting hole and is located below the second return springs, a moving rod is fixedly connected to one end, which is far away from the transmission block, of the moving rod, penetrates through the limiting hole and extends to the outer side of the transmission box, one side of the.

Preferably, the adjusting mechanism comprises a sliding block, the sliding block is connected to the outer portion of the transverse plate and located on one side of the transmission box in a sliding mode, a fixing rod is fixedly connected to the top of the sliding block, a second servo motor is fixedly installed at the bottom of the sliding block, and a fan is fixedly connected to an output shaft of the second servo motor.

Preferably, the outside of slide bar is provided with the scale mark, the slide bar is kept away from the one end of piston and is run through the spout and extend to the outside of transmission box, the outside of transmission box is kept away from one side of quick-freezer casing and is located the top fixedly connected with connecting plate of spout, the bottom fixedly connected with pointer of connecting plate.

Preferably, the fixed column is eccentrically connected with the rotating disc.

Preferably, one side of the transmission block close to the rotating disc is provided with a one-hundred-ten-degree inclined surface, and the roller is in contact with the inclined surface of the transmission block.

Preferably, the first servo motor and the second servo motor are electrically connected with an external control mechanism of the instant freezer.

The working principle of the structure for keeping the balance of internal and external air pressures by the fan comprises the following steps:

s1, electrifying the equipment, controlling the instant freezer to work, and controlling the first servo motor and the second servo motor to work through an external control mechanism;

s2, the first servo motor drives the rotating disc to rotate, the transmission rod and the sliding sleeve are driven to move up and down on the surface of the limiting rod through the matching between the fixed column and the limiting groove, so that the installation rod and the roller are driven to move up and down, the transmission block is pushed to move through the mutual matching of the roller and the inclined plane of the transmission block, so that the moving rod is driven to move, the second return spring is matched with the second return spring, so that the moving rod can move back and forth left and right, the sliding block is pushed to move left and right on the outer side of the transverse plate through the fixed rod, and the sliding block drives the second servo motor to move left and right with the;

s3, the second servo motor drives the fan to rotate, so that air pressure at the outlet of the instant freezer is adjusted, excessive inflow or outflow of air is reduced, and freezing efficiency of the instant freezer is improved;

s4, simultaneously, the air pressure change condition at the exit of the instant freezer can be observed through the matching between the scale mark on the outer side of the slide bar and the pointer, when the air pressure inside the exit of the instant freezer is larger, the air pressure can push the piston to slide inside the buffer slot, thereby extruding the first return spring, and simultaneously driving the slide bar to move towards the outer side, at the moment, the position of the pointer changes, when the air pressure outside the exit of the instant freezer is larger, under the action of the first return spring, the slide bar and the piston are driven to return, through observing the relative position change between the scale mark on the slide bar and the pointer, the inflow or outflow condition of the air at the exit of the instant freezer can be judged, meanwhile, the working strength of the second servo motor can be adjusted according to the change condition of the air pressure, and the purpose of balancing the air pressure inside and.

The invention has the beneficial effects that: the air pressure balance device is compact in structure, simple and convenient to operate and high in practicability, the observation mechanism is arranged, the air pressure change condition at the outlet of the instant freezer can be conveniently and better observed, meanwhile, the adjusting mechanism is arranged, the fan is driven to rotate through the servo motor, so that the air pressure at the outlet of the instant freezer is balanced, the excessive inflow or outflow of air is reduced, the freezing efficiency of the instant freezer is further improved, in addition, the transmission mechanism is arranged, the fan can swing back and forth left and right, the acting area of the fan is increased, and the working range of equipment is improved.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the internal structure of the transmission case of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a quick-freezer shell; 2. an outlet of the instant freezer; 3. an observation mechanism; 31. a through hole; 32. a transfer box; 33. an exhaust hole; 34. a buffer tank; 35. a chute; 36. a slide bar; 37. a piston; 38. a first return spring; 39. a connecting plate; 310. a pointer; 4. a transmission mechanism; 41. mounting a plate; 42. a transverse plate; 43. a transmission box; 44. a first servo motor; 45. rotating the disc; 46. fixing a column; 47. a limiting rod; 48. a sliding sleeve; 49. a transmission rod; 410. a limiting groove; 411. a limiting hole; 412. a moving groove; 413. A moving block; 414. a transmission block; 415. a second return spring; 416. a travel bar; 417. mounting a rod; 418. a roller; 5. an adjustment mechanism; 51. a slider; 52. fixing the rod; 53. a second servo motor; 54. A fan.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: