A sterilizer drive door

Abstract

The present invention discloses a sterilizer drive door, wherein the sterilizer includes a frame, a sterilization chamber fixed to the frame, the sterilization chamber is provided with a chamber door, the chamber door is provided with a sealing strip, the drive door includes a drive device and a chamber door assembly, the chamber door assembly includes a door panel, a slider, and a pair of brackets, a pair of swing plates, and a pair of limit blocks symmetrically arranged about the door panel, the limit blocks are fixed to the frame, one end of the swing plate is movably connected to the door panel and the other end is movably connected to the bracket, one end of the slider is elastically connected to the door panel and the other end is fixedly connected to the drive device, and the slider and the bracket are movably connected to push the swing plate between the door panel and the limit block, and the door panel is pressed against the sealing strip under the pressure of the swing plate. The sterilizer drive door provided by the present invention achieves sealing of the sterilization chamber without the need for an inflation device, thereby reducing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of sterilizers, and in particular to a sterilizer drive door. Background Art

[0002] The sterilizer mainly consists of a sterilization chamber and a door panel. According to the operation method, the sterilizer door is divided into two types: manual and automatic. With the development of technology, sterilizers have adopted semi-automatic or fully automatic door structures.

[0003] The door drive and sealing technologies of current products mainly adopt the following forms: the door panel is driven up and down by a cylinder, and the sealing method is that when the door moves to the uppermost position, the position where the sealing strip is located will be inflated. At this time, the sealing strip is tightly attached to the door under the action of the air, thereby achieving the purpose of sealing. This technical solution requires the installation of an independent inflation device, which consumes a lot of gas and has high manufacturing costs. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a sterilizer drive door, which can seal the sterilization chamber without the need for an inflation device, thereby reducing costs.

[0005] The present invention is achieved through the following technical solutions:

[0006] A sterilizer drive door, the sterilizer includes a frame, a sterilization chamber fixed on the frame, the sterilization chamber is provided with a cabin door, the cabin door is provided with a sealing strip, the drive door includes a drive device and a cabin door assembly, the cabin door assembly includes a door panel, a slider and a pair of brackets, a pair of swing pieces and a pair of limit blocks symmetrically arranged about the door panel, the limit blocks are fixed on the frame, one end of the swing piece is movably connected to the door panel, and the other end is movably connected to the bracket, one end of the slider is elastically connected to the door panel, and the other end is fixedly connected to the drive device, and the slider and the bracket are movably connected to push the swing piece between the door panel and the limit block, and the door panel fits the sealing strip under the pressure of the swing piece.

[0007] Furthermore, a stop block assembly is fixedly provided on the door panel, and the sliding block is elastically connected to the stop block assembly.

[0008] Furthermore, the block assembly includes a fixed block, a spring and a pin shaft, the fixed block is fixedly connected to the door panel, the pin shaft passes through the fixed block and the slider in sequence, the pin shaft abuts against the fixed block, the spring is sleeved on the pin shaft, and one end of the spring abuts against the fixed block and the other end abuts against the slider.

[0009] Furthermore, the fixing block is provided with a first through hole, a first stop block and a second stop block are arranged in the first through hole, a convex portion is provided on the pin shaft, one end of the convex portion abuts against the first stop block and the other end abuts against the spring, and the spring portion is accommodated in the first through hole and abuts against the second stop block.

[0010] Furthermore, a second through hole is provided on the slider, the spring portion is accommodated in the second through hole, and a blocking piece is provided in the second through hole for limiting the spring.

[0011] Furthermore, the swing plate includes an integrally formed cutting portion and an extrusion portion, the thickness of the edge of the cutting portion is smaller than the gap between the door panel and the limit block, the thickness of the extrusion portion is larger than the gap between the door panel and the limit block, and the thickness of the cutting portion gradually increases from the edge toward the extrusion portion.

[0012] Furthermore, a first rotating shaft is provided on the door panel, and the swing piece is rotatably connected to the first rotating shaft.

[0013] Furthermore, a second rotating shaft is provided on the swing piece, a third rotating shaft is provided on the slider, and one end of the bracket is rotatably connected to the second rotating shaft, and the other end is rotatably connected to the third rotating shaft.

[0014] Furthermore, a limiting member is provided on the door panel, and the limiting member abuts against the limiting block.

[0015] Furthermore, the drive door also includes a first microswitch for limiting the rise of the door panel, a second microswitch for limiting the descent of the door panel, and a third microswitch for limiting the movement of the door panel toward the sealing strip. The first microswitch, the second microswitch and the third microswitch are all fixed on the frame.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. Driven by the electric push rod, the slider drives the door panel upward through three springs. When the limiter on the door panel hits the limit block, the door panel triggers the first microswitch. At this time, the electric push rod stops running and the door panel reaches the uppermost position. Subsequently, the electric push rod continues to energize and move upward. Because the door panel can no longer move upward due to the action of the limit block, the three springs begin to compress under the action of the electric push rod. The electric push rod continues to push the slider. The slider overcomes the elastic force of the three springs and continues to move toward the position of the fixed block along the direction of the pin. While the slider moves, it drives the brackets on both sides to swing, and then the brackets push the swing piece to the gap between the door panel and the limit block. Under the pressure of the swing piece, the door panel moves a certain distance toward the cabin door and contacts the sealing strip, thereby achieving a sealing effect. This sterilizer drive door achieves sealing of the sterilization chamber without the need for inflation equipment, reducing costs.

[0018] 2. The driving device uses an electric push rod to open or seal the hatch door assembly. The electric push rod is electrically controlled. Compared with the cylinder, the electric push rod does not require an air source and has a simple design, which reduces manufacturing and assembly costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the local structure of the sterilizer Figure 1

[0020] Figure 2 Schematic diagram of the local structure of the sterilizer Figure 2 ;

[0021] Figure 3 Schematic diagram of the local structure of the drive door Figure 1 ;

[0022] Figure 4 Schematic diagram of the local structure of the drive door Figure 2 ;

[0023] Figure 5 for Figure 3 Middle AA section view;

[0024] Figure 6 for Figure 3 Middle BB cross-section;

[0025] Figure 7 Schematic diagram of the structure of the pendulum;

[0026] Figure 8 It is the main view of the pendulum;

[0027] Figure 9 This is the rear view of the pendulum.

[0028] 1. Frame; 2. Sterilization chamber; 20. Chamber door; 21. Sealing strip; 3. Driving device; 4. Chamber door assembly; 40. Door panel; 400. First rotating axis; 401. Mounting plate; 41. Slider; 410. Second through hole; 411. Block; 412. Third rotating axis; 42. Bracket; 43. Swing piece; 430. Cut-in portion; 432. Edge; 431. Extrusion portion; 432. Second rotating axis; 433. Support plate; 44. Limit block; 45. Block assembly; 46. Fixed block; 460. First through hole; 461. First block; 462. Second block; 47. Spring; 48. Pin; 480. Protrusion; 49. Limit member; 5. First micro switch; 6. Second micro switch; 7. Third micro switch; 8. Cover. DETAILED DESCRIPTION

[0029] The following is a further non-restrictive detailed description of the technical solution of the invention in conjunction with the preferred embodiments and the accompanying drawings. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] like Figures 1-6As shown, a sterilizer drive door according to one embodiment of the present invention comprises a frame 1, a sterilization chamber 2 fixed to the frame 1, a chamber 2 provided with a hatch 20, and a sealing strip 21. The drive door comprises a drive device 3, a door assembly 4, a cover 8 fixedly connected to the door assembly 4, a first microswitch 5 for limiting the upward movement of the door assembly 4, a second microswitch 6 for limiting the downward movement of the door assembly 4, and a third microswitch 7 for limiting the movement of the door assembly 4 toward the sealing strip 21. The first, second, and third microswitches 5, 6, and 7 are all fixed to the frame 1. The drive device 3 is fixed to the frame 1, and the door assembly 4 and the drive device 3 are fixedly connected. In this embodiment, the drive device 3 uses an electric push rod to open or seal the hatch 20 of the door assembly 4. The electric push rod is electrically controlled, does not require an air source, and has a simple design, reducing manufacturing and assembly costs.

[0031] The door assembly 4 includes a door panel 40, a slider 41, and a pair of brackets 42, a pair of swing plates 43, and a pair of limit blocks 44, all symmetrically arranged about the door panel 40. The limit blocks 44 are fixed to the frame 1. One end of the swing plate 43 is movably connected to the door panel 40 and the other end is movably connected to the bracket 42. The slider 41 has one end elastically connected to the door panel 40 and the other end fixedly connected to the drive device 3. The slider 41 and the bracket 42 are movably connected to push the swing plate 43 between the door panel 40 and the limit blocks 44. The door panel 40 is pressed against the sealing strip 21 by the swing plate 43. A first microswitch 5 is used to limit the upward movement of the door panel 40, a second microswitch 6 is used to limit the downward movement of the door panel 40, and a third microswitch 7 is used to limit the movement of the door panel 40 toward the sealing strip 21.

[0032] A first rotating shaft 400 is provided on the door panel 40, the swing piece 43 is rotatable and connected to the first rotating shaft 400, and a second rotating shaft 432 is provided on the swing piece 43, and a third rotating shaft 412 is provided on the slider 41. One end of the bracket 42 is rotatable and connected to the second rotating shaft 432, and the other end is rotatable and connected to the third rotating shaft 412.

[0033] A limiting member 49 is provided on the door panel 40 , and the limiting member 49 abuts against the limiting block 44 .

[0034] A stopper assembly 45 is also fixedly provided on the door panel 40 , and the slider 41 and the stopper assembly 45 are elastically connected.

[0035] Specifically, the stopper assembly 45 includes a fixed block 46, a spring 47, and a pin 48. The fixed block 46 is fixedly connected to the door panel 40. The pin 48 passes through the fixed block 46 and the slider 41 in sequence, abutting the fixed block 46. The spring 47 is sleeved on the pin 48, with one end of the spring 47 abutting the fixed block 46 and the other end abutting the slider 41. The fixed block 46 defines a first through-hole 460, within which a first stopper 461 and a second stopper 462 are disposed. The pin 48 defines a protrusion 480, with one end abutting the first stopper 461 and the other end abutting the spring 47. The spring 47 is partially received in the first through-hole 460 and abuts the second stopper 462. The slider 41 defines a second through-hole 410, within which the spring 47 is partially received. A stopper 411 is disposed within the second through-hole 410 to limit the spring 47.

[0036] like Figure 7-Figure 9 As shown, the swing piece 43 includes an integrally formed cutting portion 430 and an extrusion portion 431. The thickness L1 of the edge 432 of the cutting portion 430 is smaller than the gap d between the door panel 40 and the limit block 44. The thickness L2 of the extrusion portion 431 is larger than the gap d between the door panel 40 and the limit block 44. The thickness of the cutting portion 430 gradually increases from the edge 432 toward the extrusion portion 431.

[0037] During operation, when the door panel 40 rises: the slider 41 is driven by the electric push rod to drive the door panel 40 to move upward through three springs 47, wherein the force generated by the preload of the three springs 47 is greater than the gravity of the hatch assembly 4, and when the limit piece 49 on the door panel 40 hits the limit block 44, the door panel 40 also just triggers the first micro switch 5. At this time, the electric push rod stops running, and the door panel 40 reaches the uppermost position. Subsequently, the electric push rod continues to be energized and moves upward. Since the door panel 40 can no longer move upward due to the action of the limit block 44, the three springs 47 begin to compress under the action of the electric push rod, and the electric push rod continues to push the slider 41. The slider 41 overcomes the elastic force of the three springs 47 and continues to move toward the position of the fixed block 46 along the direction of the pin 48. The movement of the slider 41 also drives the brackets 42 on both sides to swing. The brackets 42 then push the swing piece 43 to the gap d between the door panel 40 and the limit block 44. Under the pressure of the swing piece 43, the door panel 40 moves a certain distance toward the hatch door 20 and contacts the sealing strip 21, thereby achieving a sealing effect. Finally, the support plate 433 on the swing piece 43 will touch the third micro switch 7, and the electric push rod stops moving.

[0038] When the door panel 40 descends, the slider 41 moves downward under the action of the electric push rod. The slider 41 retracts the swing plate 43 via the bracket 42, and the door panel 40 moves downward along with the electric push rod until the mounting plate 401 on the door panel 40 contacts the second microswitch 6, at which point the electric push rod stops moving. The sterilizer drive door of the present invention seals the sterilization chamber without the need for an inflation device, resulting in a simple structure, reduced assembly and commissioning time, and low cost.

[0039] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A sterilizer drive door, the sterilizer comprising a frame (1), a sterilization chamber (2) fixed to the frame (1), the sterilization chamber (2) being provided with a chamber door (20), the chamber door (20) being provided with a sealing strip (21), the drive door comprising a drive device (3) and a chamber door assembly (4), characterized in that: The door assembly (4) comprises a door panel (40), a slider (41), and a pair of brackets (42) symmetrically arranged about the door panel (40), a pair of swing pieces (43) and a pair of limit blocks (44), wherein the limit blocks (44) are fixed on the frame (1), one end of the swing piece (43) is movably connected to the door panel (40), and the other end is movably connected to the bracket (42), one end of the slider (41) is elastically connected to the door panel (40), and the other end is fixedly connected to the driving device (3), and the slider (41) and the bracket (42) are movably connected to push the swing piece (43) between the door panel (40) and the limit blocks (44), and the door panel (40) is pressed against the sealing strip (21) by the swing piece (43).

2. The sterilizer drive door according to claim 1, characterized in that: A stop block assembly (45) is fixedly provided on the door panel (40), and the sliding block (41) and the stop block assembly (45) are elastically connected.

3. The sterilizer drive door according to claim 2, characterized in that: The stopper assembly (45) includes a fixed block (46), a spring (47) and a pin (48). The fixed block (46) is fixedly connected to the door panel (40). The pin (48) passes through the fixed block (46) and the slider (41) in sequence. The pin (48) abuts against the fixed block (46). The spring (47) is sleeved on the pin (48). One end of the spring (47) abuts against the fixed block (46) and the other end abuts against the slider (41).

4. The sterilizer drive door according to claim 3, characterized in that: The fixing block (46) is provided with a first through hole (460), a first stopper (461) and a second stopper (462) are provided in the first through hole (460), a convex portion (480) is provided on the pin shaft (48), one end of the convex portion (480) abuts against the first stopper (461), and the other end abuts against the spring (47), and the spring (47) is partially accommodated in the first through hole (460) and abuts against the second stopper (462).

5. The sterilizer drive door according to claim 3, characterized in that: The slider (41) is provided with a second through hole (410), the spring (47) is partially accommodated in the second through hole (410), and a blocking piece (411) is provided in the second through hole (410) for limiting the spring (47).

6. The sterilizer drive door according to claim 1, characterized in that: The swing plate (43) includes an integrally formed cut-in portion (430) and an extrusion portion (431); a thickness (L1) of an edge (432) of the cut-in portion (430) is smaller than a gap (d) between the door panel (40) and the limit block (44); a thickness (L2) of the extrusion portion (431) is larger than the gap (d) between the door panel (40) and the limit block (44); and the thickness of the cut-in portion (430) gradually increases from the edge (432) toward the extrusion portion (431).

7. The sterilizer drive door according to claim 1, characterized in that: A first rotating shaft (400) is provided on the door panel (40), and the swing piece (43) is rotatably connected to the first rotating shaft (400).

8. The sterilizer drive door according to claim 1, characterized in that: The swing piece (43) is provided with a second rotating shaft (432), the slider (41) is provided with a third rotating shaft (412), and one end of the bracket (42) is rotatably connected to the second rotating shaft (432) and the other end is rotatably connected to the third rotating shaft (412).

9. The sterilizer drive door according to claim 1, characterized in that: A limiting member (49) is also provided on the door panel (40), and the limiting member (49) abuts against the limiting block (44).

10. The sterilizer drive door according to claim 1, characterized in that: The drive door further comprises a first micro switch (5) for limiting the upward movement of the door panel (40), a second micro switch (6) for limiting the downward movement of the door panel (40), and a third micro switch (7) for limiting the movement of the door panel (40) toward the sealing strip (21); the first micro switch (5), the second micro switch (6), and the third micro switch (7) are all fixed on the frame (1).

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