A double-leaf window

Abstract

The utility model provides a kind of anti-anti-vehicle transmission window, it is related to transmission window technical field, including transmission window, transmission window front and rear end is equipped with closed door, transmission window inside is equipped with transmission cavity, closed door is equipped with pressure column in transmission cavity one end top side;Transmission window top side is equipped with limiting cavity, two limiting rods are slidably arranged in limiting cavity inside.The utility model is equipped with the above structure, after stepping motor energization, limiting rod can be driven by transmission assembly, two limiting rods will move to opposite direction, when one of limiting rod is separated from limiting hole, relevant personnel can open closed door, when closed door is opened, the pressure column connected with it will be separated from pressure sensing groove inside, and then will not give sensor pressure in pressure sensing groove, at this time, the circuit of stepping motor will form open-circuit state, and then the closed door of other side cannot be opened, prevent relevant personnel from opening transmission window two sides, leading to the pollution inside workshop.

Description

Technical Field

[0001] This utility model relates to the field of workshop pass-through window technology, and more specifically, to a workshop pass-through window designed to prevent double-opening doors. Background Technology

[0002] Workshop pass-through windows are core auxiliary equipment in cleanrooms and dust-free workshops. They are mainly used to transfer small items (such as materials, samples, tools, etc.) between clean areas and between clean areas and non-clean areas. The core purpose is to control cross-contamination and maintain the cleanliness level of the clean area by reducing the number of times the cleanroom door is opened, thus preventing external polluted air from entering or clean area air from leaking out.

[0003] However, the existing workshop pass-through windows have the following problems in use:

[0004] 1. It is easy for two separate openings to occur;

[0005] 2. Operators may violate regulations by opening the pass-through window in two places.

[0006] In summary, existing workshop pass-through windows are prone to being opened in half and operators can violate regulations to open the pass-through windows in half. Therefore, a workshop pass-through window designed to prevent this problem is disclosed. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a resistant double-opening workshop pass-through window. This resistant double-opening workshop pass-through window, through the combination of a controller and a pressure sensor groove, can flexibly control whether the stepper motor circuit is connected, thereby achieving the purpose of preventing double-opening.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a double-opening workshop pass-through window, comprising a pass-through window, wherein the pass-through window is provided with a closed door at the front and rear ends, a limit hole is provided on one side of the top of the closed door, a pass-through cavity is provided inside the pass-through window, and a pressure column is provided on the top side of the closed door near the pass-through cavity.

[0009] A limiting cavity is provided on one side of the top of the transfer window. Two limiting rods are slidably installed inside the limiting cavity. The limiting rods are inserted into the limiting holes to restrict the movement of the closed door. A stepper motor is provided in the middle of the inner side wall of the limiting cavity, and the stepper motor drives the limiting rods through a transmission assembly.

[0010] Pressure sensing grooves are provided at both the front and rear ends of the bottom of the limiting cavity, and the pressure column can enter or leave the pressure sensing groove as the closed door moves. A sensor is provided inside the pressure sensing groove.

[0011] A controller is provided between the pressure sensing slots, and the controller controls whether the stepper motor circuit is connected by receiving the sensor signals.

[0012] Preferably, the transmission assembly includes a drive gear and a rack. The drive gear is connected to the output shaft of the stepper motor. The rack has two teeth, which mesh with the front and rear ends of the drive gear respectively, and the rack is fixed to the limiting rod.

[0013] Preferably, the limiting rod has at least one guide hole, a guide rod is inserted through the guide hole, and both ends of the guide rod are connected to the inner wall of the limiting cavity.

[0014] Preferably, the top and bottom of the rack are provided with clearance grooves in the limiting cavity.

[0015] Preferably, the limiting cavity is provided with detachable baffles at its front and rear ends.

[0016] Preferably, an ultraviolet germicidal lamp is provided at the top center of the transfer chamber.

[0017] Preferably, the pressure sensing groove has a first through hole at the end away from the stepper motor, and a second through hole at the end of the pressure sensing groove closer to the stepper motor.

[0018] Preferably, the pressure column is arc-shaped, and the opening paths of the first through hole and the second through hole are adapted to the arc shape of the pressure column.

[0019] Preferably, a pressure sensor is provided inside the second through hole near the end of the stepper motor.

[0020] Preferably, the controller can only control the connection of a portion of the stepper motor's circuitry via the pressure signal when both pressure sensors detect a pressure signal simultaneously.

[0021] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0022] This invention provides a transfer window designed to prevent double-opening. When both doors are closed, pressure columns on both doors extend into the pressure sensing grooves, applying pressure to the sensors. When both sensors are under pressure, the controller activates a portion of the stepper motor's circuitry via sensor signals. To open the doors, personnel can activate the stepper motor's circuitry by switching on a switch located outside the transfer window. This powers the stepper motor, which in turn drives limit rods via a transmission assembly. The two limit rods move in opposite directions. When one limit rod disengages from its limit hole, the door can be opened. Upon opening, the pressure column connected to the door disengages from the pressure sensing groove, preventing pressure from reaching the sensors. This breaks the circuit in the stepper motor, preventing the other door from opening and thus preventing unauthorized double-opening of the transfer window, which could lead to contamination inside the workshop. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall closed door opening structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the overall top cross-sectional structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the closed door structure of this utility model.

[0029] The components are as follows: 10. Transfer window; 101. Closed door; 102. Limiting hole; 103. Transfer chamber; 104. Ultraviolet germicidal lamp; 105. Pressure column; 20. Limiting chamber; 201. Baffle; 202. Relief groove; 30. Stepper motor; 40. Drive gear; 50. Rack; 60. Limiting rod; 601. Guide hole; 602. Guide rod; 70. Pressure sensing groove; 701. First through hole; 702. Second through hole; 703. Pressure sensor; 80. Controller. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] Example 1

[0032] like Figure 1-6 As shown, this utility model provides a transfer window for a workshop with anti-double-opening features, including a transfer window 10. The transfer window 10 has a closed door 101 at both ends. A limiting hole 102 is formed on one side of the top of the closed door 101. A transfer cavity 103 is formed inside the transfer window 10. A pressure column 105 is provided on the top side of the closed door 101 near the transfer cavity 103. A limiting cavity 20 is formed on one side of the top of the transfer window 10. Two limiting rods 60 slide inside the limiting cavity 20. The limiting rods 60 are inserted into the limiting hole 102 to control the closed door 10. The movement of the limiting cavity 20 is restricted. A stepper motor 30 is provided in the middle of the inner side wall of the limiting cavity 20, and the stepper motor 30 drives the limiting rod 60 through the transmission component. Pressure sensing grooves 70 are provided at the front and rear ends of the bottom of the limiting cavity 20, and the pressure column 105 can enter or leave the pressure sensing groove 70 with the movement of the closing door 101. A sensor is provided inside the pressure sensing groove 70. A controller 80 is provided between the pressure sensing grooves 70, and the controller 80 controls whether part of the circuit of the stepper motor 30 is conductive by receiving sensor signals.

[0033] This utility model's anti-double-opening workshop pass-through window, when both closed doors 101 are closed, the pressure columns 105 on both closed doors 101 extend into the pressure sensing groove 70, applying pressure to the sensors in the pressure sensing groove 70. When the sensors in both pressure sensing grooves 70 are under pressure, the controller 80 can activate part of the circuit of the stepper motor 30 through the sensor signal. At this time, if relevant personnel need to open the closed door 101, they can activate all the circuits of the stepper motor 30 through the switch of the stepper motor 30 located outside the pass-through window 10, thus energizing the stepper motor 30. After the stepper motor 30 is energized, it can drive the limit rods 60 through the transmission component. The two limit rods 60 will move in opposite directions. When one of the limit rods 60 disengages from the limit hole 102, the relevant personnel can open the closed door 101. When the closed door 101 is opened, the pressure column 105 connected to it will be activated from the pressure sensor. When the force sensing groove 70 is disengaged, pressure is no longer supplied to the sensor inside the pressure sensing groove 70. At this time, the circuit of the stepper motor 30 will be open, thus preventing the closed door 101 on the other side from being opened. This prevents unauthorized personnel from opening the two sides of the transfer window 10, which could lead to contamination inside the workshop. It is worth noting that the sensor can be a piezoresistive or piezoelectric sensor (but is not limited to this type) to detect the pressure signal. The controller 80 can be a PLC or logic gate circuit (but is not limited to this type) to process the sensor signal. The circuit relationship between the controller 80 and the stepper motor 30 is that S1+S2+S3 are closed simultaneously (where S1+S2 is achieved by the two sensors working together with the controller 80, and S3 is the control switch for the stepper motor 30). Only then will the stepper motor 30 be powered on and work. The specific circuit connection is a conventional technique for those skilled in the art and will not be elaborated on here.

[0034] Furthermore, in another embodiment, the transmission assembly includes a drive gear 40 and a rack 50. The drive gear 40 is connected to the output shaft of the stepper motor 30. The rack 50 has two pinions, which mesh with the front and rear ends of the drive gear 40 respectively, and the rack 50 is fixed to the limiting rod 60.

[0035] When the stepper motor 30 starts, the drive gear 40 will rotate accordingly. Since the two racks 50 are meshed at the front and rear ends of the drive gear 40 respectively, the rotation of the drive gear 40 will drive the two racks 50 to move in opposite directions, thereby driving the limit rods 60 fixedly connected to the racks 50 to move synchronously in opposite directions. This transmission method can ensure that the movement states of the two limit rods 60 are opposite. That is, when one limit rod 60 is inserted into the limit hole 102 to lock the closed door 101, the other limit rod 60 must be in the state of being disengaged from the corresponding limit hole 102. This ensures that only one side of the closed door 101 can be opened at the same time, effectively avoiding the situation where both closed doors 101 are opened at the same time.

[0036] Furthermore, in another embodiment, the limiting rod 60 is provided with at least one guide hole 601, and a guide rod 602 is provided through the guide hole 601, with both ends of the guide rod 602 connected to the inner wall of the limiting cavity 20.

[0037] The guide rod 602 and the guide hole 601 are fitted with a clearance. When the limit rod 60 moves under the drive of the rack 50, the guide hole 601 will slide smoothly along the axis of the guide rod 602. This design can provide precise guidance for the movement of the limit rod 60, effectively preventing the limit rod 60 from deviating or shaking during the movement, thereby ensuring that the limit rod 60 can be accurately and smoothly inserted into or disengaged from the limit hole 102, further improving the stability and reliability of the locking and unlocking process of the closed door 101.

[0038] Furthermore, in another embodiment, the top and bottom of the rack 50 are provided with relief grooves 202 on the limiting cavity 20.

[0039] The design of the clearance groove 202 provides ample space for the movement of the rack 50, preventing interference or friction between the top and bottom of the rack 50 and the inner wall of the limiting cavity 20 when the rack 50 moves with the drive gear 40. This ensures that the rack 50 can smoothly perform linear reciprocating motion, thereby guaranteeing the normal drive of the limiting rod 60 and making the locking and unlocking operation of the closed door 101 more stable and reliable.

[0040] Furthermore, in another embodiment, an ultraviolet germicidal lamp 104 is provided at the top center of the transfer cavity 103.

[0041] Once the items are placed in the transfer chamber 103, the ultraviolet germicidal lamp 104 emits ultraviolet light, which quickly disinfects the surface of the items using the sterilizing effect of ultraviolet light. This effectively kills bacteria, viruses and other microorganisms attached to the surface of the items, thereby avoiding cross-contamination when items are transferred between different workshops through the transfer window, and further improving the hygiene and safety level of the workshop production environment.

[0042] Furthermore, in another embodiment, the pressure sensing groove 70 has a first through hole 701 at the end away from the stepper motor 30, and a second through hole 702 at the end of the pressure sensing groove 70 near the stepper motor 30. The pressure column 105 is arc-shaped, and the opening paths of the first through hole 701 and the second through hole 702 are adapted to the arc shape of the pressure column 105.

[0043] The arc-shaped design of the first through hole 701 and the second through hole 702 can prevent relevant personnel from operating the sensor improperly by pressing their fingers against it, thus avoiding such improper operation to a certain extent.

[0044] Furthermore, in another embodiment, a pressure sensor 703 is provided inside the second through hole 702 near the end of the stepper motor 30. Only when both pressure sensors 703 detect pressure signals simultaneously can the controller 80 control the connection of a portion of the circuit of the stepper motor 30 through the pressure signals.

[0045] Only when both pressure sensors 703 detect pressure signals simultaneously can the controller 80 connect part of the circuit of the stepper motor 30, further preventing relevant personnel from opening the pass-through window.

[0046] Working principle: First, ensure that the closed doors 101 at both ends of the transfer window 10 are closed. At this time, the pressure column 105 at the end of the closed door 101 near the transfer chamber 103 will enter the pressure sensing groove 70 through the first through hole 701 and eventually extend into the second through hole 702, contacting the pressure sensor 703 inside the second through hole 702. This causes both pressure sensors 703 to detect pressure signals simultaneously. After receiving these two pressure signals, the controller 80 will activate part of the circuit of the stepper motor 30 to prepare for opening the closed door. When it is necessary to transfer an item from one side, the operator presses the control switch of the corresponding stepper motor 30 on that side. At this time, S1 (the two pressure sensors cooperate with the controller to open) is activated. When S1 (S1), S2 (another pressure sensor that works with the controller), and S3 (a stepper motor control switch) are closed simultaneously, the stepper motor 30 is powered on and started. The output shaft of the stepper motor 30 drives the drive gear 40 to rotate. Since the two racks 50 are respectively meshed at the front and rear ends of the drive gear 40, the rotation of the drive gear 40 will cause the two racks 50 to move in opposite directions, thereby driving the limit rod 60, which is fixedly connected to the racks 50, to slide in the opposite direction synchronously. Under the guidance of the guide rod 602 and the guide hole 601, the limit rod 60 moves smoothly. The limit rod 60 corresponding to the closed door 101 to be opened gradually disengages from the limit hole 102. When it is completely disengaged, the operator can easily open the closed door 101 on that side.

[0047] As the closed door 101 opens, its corresponding pressure column 105 exits from the pressure sensing groove 70, and the pressure sensor 703 no longer detects the pressure signal, causing the circuit of the stepper motor 30 to be broken. As a result, the closed door 101 on the other side cannot be opened by the stepper motor 30, thus effectively preventing the closed doors on both sides from opening at the same time.

[0048] After the item is placed in the transfer chamber, the opened closed door 101 is closed, and the pressure column 105 enters the pressure sensing groove 70 again to trigger the pressure sensor 703, causing the controller 80 to reconnect part of the circuit of the stepper motor 30. If the other side needs to retrieve the item, the above operation can be repeated.

[0049] During this process, the ultraviolet germicidal lamp 104 at the top of the transfer chamber 103 can sterilize and disinfect the transferred items in real time, ensuring the cleanliness of the items during the transfer process.

[0050] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0051] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A type of anti-split workshop pass-through window, comprising a pass-through window (10), characterized in that: The transfer window (10) has a closed door (101) at the front and rear ends. A limit hole (102) is opened on one side of the top of the closed door (101). A transfer cavity (103) is opened inside the transfer window (10). A pressure column (105) is provided on the top side of the closed door (101) near the transfer cavity (103). A limiting cavity (20) is provided on one side of the top of the transfer window (10). Two limiting rods (60) are slidably provided inside the limiting cavity (20). The limiting rods (60) are inserted into the limiting hole (102) to restrict the movement of the closed door (101). A stepper motor (30) is provided in the middle of the inner side wall of the limiting cavity (20), and the stepper motor (30) drives the limiting rods (60) through a transmission assembly. The limiting cavity (20) has pressure sensing grooves (70) at both the front and rear ends at the bottom, and the pressure column (105) can enter or leave the pressure sensing groove (70) as the closing door (101) moves. The pressure sensing groove (70) is equipped with a sensor. A controller (80) is provided between the pressure sensing slots (70), and the controller (80) controls whether the stepper motor (30) circuit is connected by receiving the sensor signal.

2. The anti-split workshop pass-through window according to claim 1, characterized in that: The transmission assembly includes a drive gear (40) and a rack (50). The drive gear (40) is connected to the output shaft of the stepper motor (30). There are two racks (50), which mesh with the front and rear ends of the drive gear (40) respectively, and the racks (50) are fixed to the limiting rod (60).

3. The anti-split workshop pass-through window according to claim 2, characterized in that: At least one guide hole (601) is provided on the limiting rod (60), and a guide rod (602) is provided through the guide hole (601), and both ends of the guide rod (602) are connected to the inner wall of the limiting cavity (20).

4. The anti-split workshop pass-through window according to claim 2, characterized in that: The top and bottom of the rack (50) are provided with relief grooves (202) on the limiting cavity (20).

5. The anti-split workshop pass-through window according to claim 1, characterized in that: The limiting cavity (20) is detachably equipped with baffles (201) at its front and rear ends.

6. The anti-split workshop pass-through window according to claim 1, characterized in that: An ultraviolet germicidal lamp (104) is provided at the top center of the transfer chamber (103).

7. The anti-split workshop pass-through window according to claim 1, characterized in that: The pressure sensing groove (70) has a first through hole (701) at the end away from the stepper motor (30), and a second through hole (702) at the end of the pressure sensing groove (70) close to the stepper motor (30).

8. The anti-split workshop pass-through window according to claim 7, characterized in that: The pressure column (105) is arc-shaped, and the opening paths of the first through hole (701) and the second through hole (702) are adapted to the arc shape of the pressure column (105).

9. The anti-split workshop pass-through window according to claim 8, characterized in that: A pressure sensor (703) is provided inside the second through hole (702) near the end of the stepper motor (30).

10. The anti-split workshop pass-through window according to claim 9, characterized in that: When both pressure sensors (703) detect pressure signals simultaneously, the controller (80) can control the connection of a portion of the circuit of the stepper motor (30) via the pressure signals.

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