Table type electric interlocking assembly

Abstract

The utility model provides a table type electric interlocking assembly which comprises a rotating shaft connected to a power unit and a door bolt connected to the rotating shaft, the door bolt corresponds to a lock hole, and the door bolt is driven by the rotating shaft and can only perform axial displacement relative to the rotating shaft; a first proximity switch and a second proximity switch are arranged at the two spaced ends in the axial direction respectively, a moving piece is arranged on the door bolt, and when the moving piece abuts against the first proximity switch or the second proximity switch, the corresponding proximity switch is triggered to feed back signals to the controller, and the controller controls the door bolt to move. The controller sends a control instruction to control the power unit to drive the rotating shaft to move, the axial position of the door pin is determined, and therefore whether the door pin is inserted into the lock hole or not to lock the machine or keep away from the lock hole or not is determined, and a sealing door of the machine can be opened. Therefore, the deceleration misoperation is ensured and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of safety interlocking devices, in particular to a desktop electric interlocking component. Background Art

[0002] The desktop sterilizer is a desktop sterilizer. The door opens from right to left by the operator, and the front and back directions are opened towards the operator. The sterilizer uses high-temperature and high-pressure steam for sterilization, and the sealed door has a tendency to be opened by high-temperature and high-pressure steam. Therefore, it is necessary to develop an electric interlock component to control the locking and opening of the sealed door to avoid safety accidents caused by human misoperation and close contact.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Utility Model Content

[0004] The utility model provides a desktop electric interlocking component, which can effectively solve the above problems.

[0005] In order to realize the utility model, the utility model discloses a desktop electric interlocking assembly, which is arranged on a machine and controlled by a controller, and a lock hole is arranged on the machine; the interlocking device includes a rotating shaft connected to a power unit, and a door pin connected to the rotating shaft, the door pin corresponds to the lock hole, the door pin is driven by the rotating shaft and can only be axially displaced relative to the rotating shaft; a first proximity switch and a second proximity switch are respectively arranged at two end positions spaced apart in the axial direction, and an actuating member is arranged on the door pin. When the actuating member approaches the first proximity switch or the second proximity switch, the corresponding proximity switch is triggered to feedback a signal to the controller, and a control instruction is sent through the controller to control the activity of the power unit to drive the rotating shaft, determine the axial position of the door pin, and thereby determine whether the door pin is inserted into the lock hole to lock the machine or is away from the lock hole so that the sealed door of the machine can be opened.

[0006] Furthermore, the power unit includes a motor and a reducer connected to the motor, the reducer is connected to the rotating shaft, the free end of the rotating shaft is directly / indirectly fixed to a screw, the screw is provided with an internal thread section on the inner wall of the end away from the rotating shaft, and the door pin is provided with an external thread section near one end of the screw, and the external thread section and the internal thread section rotate axially relative to each other to produce a linear displacement.

[0007] Furthermore, a positioning groove is provided on the upper side of the door pin away from one end of the rotating shaft, and a positioning pin is provided above the positioning groove.

[0008] Furthermore, the internal thread section is configured as an internal trapezoidal thread, and the external thread section is configured as an external trapezoidal thread.

[0009] Furthermore, a bearing seat is arranged in the middle section of the screw rod, a bearing is arranged on the bearing seat, and the bearing is sleeved on the screw rod.

[0010] Furthermore, an extension section is provided on the rotating shaft away from the screw rod, and an operating member is fixedly connected to the extension section.

[0011] Furthermore, the actuator is provided with a flange at the radial end of the door pin, and the first proximity switch and the second proximity switch are configured as contact-type proximity switches.

[0012] Furthermore, the actuator is provided with a magnetic element at the radial end of the door pin, and the first proximity switch and the second proximity switch are configured as Hall proximity switches.

[0013] The beneficial effects of the utility model are as follows: the door pin is driven to move axially by the rotation of the rotating shaft so that the door pin can be inserted into the lock hole of the sealed door or moved away from the lock hole, thereby realizing locking or unlocking of the sealed door, ensuring that the sealed door will not be easily opened under high-temperature and high-pressure steam conditions, thereby ensuring safety; by setting the positional relationship between the proximity switch and the door pin, it is ensured whether the door pin is moved into place, thereby reducing misoperation and improving safety performance; it has a reasonable structure, simple operation and good safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The detailed description, given as non-limiting examples, better explains what the invention consists of and how it can be implemented, and furthermore, refers to the accompanying drawings, in which: .

[0015] Figure 1 The axonometric diagram of the embodiment of the utility model Figure 1 .

[0016] Figure 2 The axonometric diagram of the embodiment of the utility model Figure 2 .

[0017] Figure 3 It is a partial exploded view of an embodiment of the utility model.

[0018] Figure 4 It is a partial axonometric diagram of an embodiment of the utility model.

[0019] Figure 5 It is an axonometric diagram of an embodiment of the utility model applied to a whole machine.

[0020] Figure 6 It is the front view of the embodiment of the utility model.

[0021] Figure 7 It is a top view of the door opening of an embodiment of the utility model.

[0022] Figure 8 It is a top view of the door lock according to an embodiment of the utility model.

[0023] Fig. 9 The axonometric view of the whole machine of the embodiment of the utility model Figure 1 .

[0024] Fig.10 The axonometric view of the whole machine of the embodiment of the utility model Figure 2 .

[0025] Fig.11 It is a top view of the machine of the embodiment of the utility model when the whole door is open.

[0026] Fig.12 It is a partial enlarged view I of the machine of the embodiment of the utility model when the whole door is open.

[0027] Fig.13 It is a top view of the machine of the embodiment of the utility model when the whole door is closed.

[0028] Fig.14 It is a partial enlarged view II of the embodiment of the utility model when the whole door of the machine is closed.

[0029] In the figure:

[0030] 100-interlocking assembly;

[0031] 111, screw rod; 112, bushing; 113, rotating shaft; 114, bolt; 115, reducer; 116, motor; 117, frame assembly; 1171, support plate; 1172, side plate; 1173, side plate; 1174, bottom plate; 1175, support plate; 118, bearing seat; 119, first proximity switch; 120, second proximity switch; 121, door pin; 1211, positioning sink groove; 1212, door pin screw; 1213, actuator; 122, positioning block; 1221, through hole; 123, positioning pin; 124, bearing; 125, operating member;

[0032] 200-machine; 211-sealed door; 2111-keyhole. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] like Figure 5 , Fig. 9 and Fig.10As shown, the utility model discloses a desktop electric interlocking assembly 100, the interlocking assembly 100 is arranged on a machine 200 and controlled by a controller, and a control program is arranged in the controller. The machine 200 is provided with a sealed door 211, and the sealed door 211 is provided with a lock hole 2111, and the interlocking assembly 100 corresponds to the lock hole 2111. According to the action sensed by the interlocking assembly 100 and sending the action to the controller to specify the program, it is determined that the interlocking assembly 100 has locked the sealed door 211 or can be opened. In the utility model, the machine 200 is set as a sterilizer, and the sealed door 211 is the container cover of the sterilizer.

[0035] Reference Figures 1 to 14 As shown, the interlocking assembly 100 includes a frame group 117, and a power unit, a rotating shaft 113 and a door pin 121 arranged on the frame group 117, one end of the rotating shaft 113 is connected to the power unit, and the other end is connected to the door pin 121, and the door pin 121 can movably correspond to the lock hole 2111. The power unit works and drives the rotating shaft 113 to rotate to drive the door pin 121 to approach the lock hole 2111 and insert it into the lock hole 2111 to lock the sealed door 211, or the door pin 121 is away from the lock hole 2111 so that the sealed door 211 can be opened.

[0036] The power unit includes a motor 116 and a reducer 115 connected to the motor 116, the motor 116 is connected to the lower side of the reducer 115, the upper side of the reducer 115 is connected to the rotating shaft 113, the rotating shaft 113 is directly fixed to a screw rod 111 at one end away from the reducer 115, or is fixed to a screw rod 111 through a sleeve 112, the other end of the screw rod 111 is connected to the door pin 121, and the frame group 117 firmly positions the rotating shaft 113, the screw rod 111 and the door pin 121 and ensures stable axial displacement.

[0037] The frame assembly 117 includes a support plate 1171, a side plate 1172, a side plate 1173, and a bottom plate 1174. The support plate 1171 has a first wall surface and a second wall surface. One end of the first wall surface is connected to one end of the second wall surface and is arranged at an angle. The first wall surface is fixed to the reducer 115, and the second wall surface is arranged at the top and away from the reducer 115. The shaft 113 passes through the first wall surface and is connected to the reducer 115. The second wall surface is connected to a bearing seat 118 downward, and a bearing 124 is arranged in the bearing seat 118. The screw 111 is passed through the bearing 124 to be connected to the shaft 113. The lower end of the bearing seat 118 is connected to a bottom plate 1174, and the side wall of the bearing seat 118 is connected to a side plate 1172. The side plate 1172 is connected to the reducer 115 at one end away from the bearing seat 118. The bearing seat 118 can be stably connected to the reducer 115 through the support plate 1171 and the side plate 1172, ensuring that the reducer 115 drives the rotating shaft 113 to rotate and drives the screw 111 to rotate at a reasonably low speed, ensuring that the screw 111 can rotate stably without shaking. The other side wall of the bearing seat 118 is connected to the side plate 1173, and the side plate 1173 is extended to the side away from the reducer 115. A positioning block 122 is provided on the side of the bearing seat 118 away from the reducer 115. The positioning block 122 is connected to the other side of the side plate 1173 and the bottom plate 1174. A through hole 1221 is provided on the positioning block 122. The through hole 1221 corresponds to the door pin 121. The door pin 121 can be movably inserted into the positioning block 122. Through the support plate 1171, the side plate 1172, the side plate 1173 and the bottom plate 1174, the reducer 115, the bearing seat 118 and the positioning block 122 can be firmly connected as a whole, and the rotating shaft 113, the screw rod 111 and the door pin 121 can be firmly connected and can be firmly moved in the axial direction.

[0038] In this embodiment, the screw rod 111 is sleeved on the rotating shaft 113, and a sleeve 112 is further provided between the screw rod 111 and the rotating shaft 113. The screw rod 111, the sleeve 112 and the rotating shaft 113 are fixed together from their side walls by a bolt 114. Of course, the screw rod 111 and the rotating shaft 113 can also be fixed together from their side walls by the bolt 114, and the sleeve 112 is not necessarily required. The inner wall of the screw rod 111 near the end of the door pin 121 is provided with an internal thread section, and the door pin 121 is provided with an external thread section near the end of the screw rod 111, and the external thread section and the internal thread section rotate relative to each other axially to generate linear displacement.

[0039] In this embodiment, the internal thread section is set as an internal trapezoidal screw thread, and the external thread section is set as an external trapezoidal screw thread. The internal trapezoidal screw thread and the external trapezoidal screw thread cooperate to form a trapezoidal screw thread structure. The trapezoidal screw thread structure can produce three favorable technical effects during the connection and release process: first, it is more convenient and easier to tighten and align the connection, which can greatly reduce the matching time and is more stable and not prone to sliding; second, it has good friction performance and can prevent loosening, has a low degree of wear, and can be more durable; third, it has better balance and is not easy to loosen or vibrate, which can save time and effort and reduce the energy consumption driven by the motor 116.

[0040] The door pin 121 is provided with a door pin screw 1212 at one end close to the screw 111, and the door pin screw 1212 is the external thread section; the door pin 121 is provided with a smooth rod at one end away from the screw 111, and an actuating member 1213 is provided between the door pin screw 1212 and the smooth rod, and a proximity switch is provided on both sides of the actuating member 1213. A support plate 1175 is provided on both sides of the door pin 121 on the bottom plate 1174, and two proximity switches are provided on the two support plates 1175. When the proximity switch senses the actuating member 1213, a signal can be transmitted to the controller to determine whether the door pin 121 has been inserted into the lock hole 2111, so as to ensure the locking or unlocking of the sealed door 211 and ensure safety. The polished rod is provided with a positioning groove 1211 , and a positioning pin 123 is disposed above the positioning groove 1211 . The positioning pin 123 always moves in the positioning groove 1211 to ensure that the door pin 121 can only be axially displaced but not axially rotated.

[0041] Reference Figures 1 to 4 , Figure 7As shown, the actuator 1213 is provided with a flange at the radial end of the door pin 121, and the two proximity switches are provided as a first proximity switch 119 and a second proximity switch 120, and the first proximity switch 119 and the second proximity switch 120 are provided as contact type proximity switches. When the contact type proximity switches touch the flange, the contact type proximity switches transmit a signal to the controller to confirm whether the door pin 121 is locked. Of course, the actuator 1213 can also be provided with a magnetic element at the radial end of the door pin 121, and the two proximity switches are provided as a first proximity switch 119 and a second proximity switch 120, and the first proximity switch 119 and the second proximity switch 120 are provided as Hall proximity switches. When the Hall proximity switches are magnetically induced, a signal can be transmitted to the controller to confirm whether the door pin 121 is locked. In this embodiment, the first proximity switch 119 is provided as a door opening detection switch, and the second proximity switch 120 is provided as a door closing detection switch. When the door pin 121 moves to the door open position detection switch, after the door pin 121 stops moving, the dimension B is set between 2 and 4 mm, which can ensure that the door pin 121 is away from the lock hole 2111, and the sealed door 211 can be opened. When the door pin 121 moves to the door closed position detection switch, after the door pin 121 stops moving, the dimension A is set between 2 and 4 mm, which can ensure that the door pin 121 is inserted into the lock hole 2111, ensuring that the sealed door 211 is locked and that the sealed door 211 will not be opened under high temperature and high pressure.

[0042] However, when there is a power outage or the controller fails, the rotating shaft 113 cannot be controlled by the motor 116 to rotate and drive the door pin 121 to axially move, so it is necessary to manually rotate the rotating shaft 113 to allow the door pin 121 to move axially. The rotating shaft 113 is provided with an extension section away from the screw rod 111, and an operating member 125 is fixed to the extension section. Manipulating the operating member 125 can cause the rotating shaft 113 to rotate and drive the door pin 121 to move axially. In this embodiment, the operating member 125 can be configured to be operated by a knob or a disc and a handle, etc., as long as the rotating operating member 125 can be manipulated.

[0043] The action of the interlocking assembly 100 of the utility model is controlled by the control program of the sterilizer, and the interlocking and releasing of the interlocking are completed in combination with the functional requirements of the sterilization process of the sterilizer. The sterilizer includes a container cover component and a container component, and the container cover component is the sealing door 211. The interlocking assembly 100 is fixed to the connecting ring of the container component by a fastener. When the door pin 121 is inserted into the lock hole 2111 of the container cover component, the container cover component and the container component form a force closed loop, and the interlocking condition can be formed. That is, when the sterilizer runs the sterilization work and generates a high-temperature and high-pressure steam process, the container cover component must be interlocked with the container component; when there is no pressure and the temperature in the container component is low, the container cover component can be released from the interlocking with the container component, and the container cover component can be opened.

[0044] More specifically, when the control program issues an interlocking instruction, the motor 116 starts to rotate, the rotating shaft 113 drives the screw 111 to rotate, the door pin 121 and the screw 111 generate synchronous motion, the inner trapezoidal screw of the screw 111 cooperates with the outer trapezoidal screw of the door pin screw 1212 to generate a linear extension motion, and one end of the light rod of the door pin 121 is inserted into the lock hole 2111 of the container cover component. When the door is closed in place detection switch is turned on, the interlock is completed and the container cover component cannot be opened. When the control program issues an instruction to release the interlock, the motor 116 starts to reverse, the screw 111 rotates in the opposite direction, the inner trapezoidal screw of the screw 111 drives the door pin 121 to retract, and the door pin 121 withdraws from the lock hole 2111 of the container cover component. When the door is opened in place detection switch is turned on, the interlock is released and the container cover component can be opened.

[0045] The above embodiments and illustrations do not limit the product form and style of the utility model. Any appropriate changes and modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A desktop electric interlocking assembly, arranged on a machine and controlled by a controller, wherein a lock hole is arranged on the machine; the interlocking device comprises a rotating shaft connected to a power unit, and a door pin connected to the rotating shaft, wherein the door pin corresponds to the lock hole, the door pin is driven by the rotating shaft and can only be axially displaced relative to the rotating shaft; characterized in that: A first proximity switch and a second proximity switch are respectively provided at two end positions spaced apart in the axial direction, and an actuating member is provided on the door pin. When the actuating member approaches the first proximity switch or the second proximity switch, the corresponding proximity switch is triggered to feedback a signal to the controller, and a control instruction is sent through the controller to control the power unit to drive the activity of the rotating shaft, determine the axial position of the door pin, and thus determine whether the door pin is inserted into the lock hole to lock the machine or is away from the lock hole so that the sealed door of the machine can be opened.

2. The desktop electric interlock assembly according to claim 1, characterized in that: The power unit includes a motor and a reducer connected to the motor, the reducer is connected to the rotating shaft, the free end of the rotating shaft is directly / indirectly fixed to a screw, the screw is provided with an internal thread section on the inner wall of the end away from the rotating shaft, the door pin is provided with an external thread section near one end of the screw, the external thread section and the internal thread section rotate axially relative to each other to generate linear displacement.

3. The desktop electric interlock assembly according to claim 2, characterized in that: A positioning groove is arranged on the upper side of the door pin away from one end of the rotating shaft, and a positioning pin is arranged above the positioning groove.

4. The desktop electric interlocking assembly according to claim 2 or 3, characterized in that: The internal thread section is configured as an internal trapezoidal thread, and the external thread section is configured as an external trapezoidal thread.

5. The desktop electric interlocking assembly according to claim 2 or 3, characterized in that: A bearing seat is arranged in the middle section of the screw rod, a bearing is arranged on the bearing seat, and the bearing is sleeved on the screw rod.

6. The desktop electric interlocking assembly according to claim 2 or 3, characterized in that: The rotating shaft is provided with an extension section away from the screw rod, and an operating member is fixedly connected to the extension section.

7. The desktop electric interlock assembly according to claim 1, characterized in that: The actuator is provided with a flange at the radial end of the door pin, and the first proximity switch and the second proximity switch are configured as contact-type proximity switches.

8. The desktop electric interlock assembly according to claim 1, characterized in that: The actuator is provided with a magnetic element at the radial end of the door pin, and the first proximity switch and the second proximity switch are configured as Hall proximity switches.

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