Interlocking type delivery window

Abstract

The utility model discloses an interlocking type delivery window, which relates to the technical field of delivery windows and comprises a box body, the box body is provided with two door bodies and a channel with two open ends, and each door body is provided with a first hook body; a mounting plate; the interlocking mechanism comprises a locking plate, a tension spring and a supporting rod, the locking plate comprises an angle plate and a second hook body, the second hook body is matched with the first hook body, the supporting rod and the tension spring are simultaneously connected to the end, away from the second hook body, of the angle plate, one end of the tension spring is hinged to the angle plate, the other end of the tension spring is hinged to the mounting plate, and one end of the supporting rod is hinged to the angle plate; the locking piece further comprises a connecting sleeve, the connecting sleeve extends in the direction perpendicular to the angle plate and is connected between the angle plate and the second hook body, one end of the connecting sleeve is matched with the side face, away from the mounting plate, of the angle plate in an inserted mode, and the other end of the connecting sleeve is matched with the side face, away from the mounting plate, of the angle plate in an inserted mode. And the other end of the connecting sleeve is inserted and matched with the second hook body. The rotating shaft is convenient to maintain and can be prevented from being deformed.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer windows, in particular to an interlocking transfer window. Background Art

[0002] The radiation-proof transfer window is a safe transfer device designed for areas that need to control radiation contamination or protect personnel from the hazards of radioactive materials. It is commonly used in nuclear medicine departments, radiotherapy departments, laboratories in hospitals, and places involving research and application of radioisotopes. The main function of the radiation-proof transfer window is to safely transfer items between areas with different protection levels while preventing the leakage of radioactive materials to ensure environmental safety and the health of staff. The radiation-proof transfer window includes an interlocking system. The interlocking system is designed to ensure that only one door can be opened at any time. The transfer window is designed with an interlocking system, which means that when the door on one side is opened, the door on the other side will be locked to prevent radiation leakage or cross contamination.

[0003] The Chinese utility model patent with authorization announcement number CN207960396U discloses a mechanically interlocking transfer window.

[0004] The above-mentioned comparative documents have the following technical problems: when the transfer window is used for a long time, the corner plate and the first hook are easy to deform, and the door body may not be opened easily. Once the door body cannot be opened, the door body needs to be disassembled as a whole for inspection, which is time-consuming and labor-intensive, and it is very likely that the corner plate and the first hook need to be replaced; in order to ensure that the second hook can be located in a suitable position to cooperate with the first hook, there is a certain gap between the corner plate and the mounting plate. The existence of this gap may easily cause the rotation shaft for hinge connection of the corner plate and the mounting plate to be deformed. Once the rotation shaft is deformed, it will accelerate the deformation of the corner plate and the first hook. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and to provide an interlocking transfer window, which is convenient for maintenance and can prevent the shaft from being deformed.

[0006] To achieve the above object, the utility model provides an interlocking transfer window, comprising:

[0007] A box body, wherein the box body is provided with a passage with two open ends, and two opposite sides of the passage are respectively rotatably mounted with door bodies, and the inner sides of the opening and closing edges of the two door bodies each extend a first hook body toward the opposite side;

[0008] A mounting plate, the mounting plate being fixedly mounted on the inner side of the side wall of the channel;

[0009] A locking mechanism, wherein the locking mechanisms are respectively provided at opposite ends of the mounting plate, the locking mechanism comprising a locking plate, a tension spring and a strut, the locking plate comprising an angle plate rotatably connected to the mounting plate through a rotating shaft, a second hook body connected to one end of the angle plate, the second hook body cooperates with the first hook body close to it, the strut and the tension spring are simultaneously connected to an end of the angle plate away from the second hook body, one end of the tension spring is hinged to the angle plate, the other end of the tension spring is hinged to the mounting plate, and the hinge between the tension spring and the mounting plate is located between the two locking plates One end of the support rod is hinged to the angle plate, and the other end of the support rod extends to the end position of the side wall of the channel and cooperates with the opening and closing edge of the corresponding door body, one side of the angle plate is in contact with the mounting plate, and the angle plate and the second hook body are split structures, and the locking plate also includes a connecting sleeve, which extends in a direction perpendicular to the angle plate, and the connecting sleeve is connected between the angle plate and the second hook body, one end of the connecting sleeve is plugged into and cooperated with the side of the angle plate away from the mounting plate, and the other end of the connecting sleeve is plugged into and cooperated with the second hook body.

[0010] Furthermore, a first limiting protrusion is provided on the side of the angle plate facing away from the mounting plate, the connecting sleeve is provided with a limiting through hole, and a second limiting protrusion is provided on the side of the second hook body, one end of the limiting through hole is plug-fitted with the first limiting protrusion, and the other end of the limiting through hole is plug-fitted with the second limiting protrusion.

[0011] Furthermore, the interlocking transfer window is a double-layer structure, the number of the channels is two, the door bodies are rotatably mounted on two opposite sides of the two channels, and the two door bodies located on the same side of the channels share a handle.

[0012] Furthermore, the second hook body includes a first straight arm and a hook body, the second limiting protrusion is arranged at one end of the first straight arm, and the hook body is arranged at the other end of the first straight arm.

[0013] Furthermore, the angle plate includes a second straight arm and a third straight arm, the second straight arm and the third straight arm are perpendicular to each other, the vertical connection between the second straight arm and the third straight arm is connected to the rotating shaft, the tension spring and the support rod are respectively connected to the second straight arm, and the connecting sleeve is connected to the third straight arm.

[0014] Furthermore, the interlocking mechanism also includes a positioning pin, which is installed on the mounting plate. When the second hook body is hooked with the corresponding first hook body, the positioning pin blocks the third straight arm.

[0015] Furthermore, the interlocking mechanism also includes two limiting rings fixedly mounted on the mounting plate, the two limiting rings are respectively sleeved on two struts, and the matching positions of the limiting rings and the struts are close to the free ends of the struts.

[0016] Furthermore, the tension spring is connected to the mounting plate via a pin, and the pin and the mounting plate are detachably connected.

[0017] The beneficial effects of the utility model are:

[0018] When the door cannot be opened due to deformation of the lock plate or the first hook, the force of pulling the door outward can be increased. Under relatively large force, since the angle plate and the second hook are respectively plugged and matched with the connecting sleeve, the connecting sleeve and the angle plate, and the connecting sleeve and the second hook are easily separated, and the door can be opened without disassembling the door as a whole.

[0019] During maintenance, usually only the deformed or damaged connecting sleeve needs to be replaced, and the locking piece and the first hook body usually only need to be reshaped;

[0020] Since the connecting sleeve is installed on the side of the angle plate away from the mounting plate, it can not only ensure that the first hook body and the second hook body are matched in the appropriate position, but also make the side of the angle plate and the side of the mounting plate fit together. When the side of the angle plate and the side of the mounting plate fit together, the gap between the angle plate and the mounting plate is zero, which can effectively prevent the shaft from deforming during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is an overall structural diagram of an interlocking transfer window of the utility model;

[0023] Figure 2 This is an overall structural diagram of an interlocking transfer window of the utility model from another angle;

[0024] Figure 3 It is a partial structural schematic diagram of an interlocking transfer window of the utility model;

[0025] Figure 4 for relative to Figure 3 A schematic diagram of the structure of another state;

[0026] Figure 5 This is a structural diagram of a locking piece in an interlocking transfer window of the utility model;

[0027] Figure 6 This is a structural diagram of a corner plate in an interlocking transfer window of the utility model;

[0028] Figure 7 This is a structural diagram of a connecting sleeve in an interlocking transfer window of the utility model;

[0029] Figure 8 The utility model is a structural diagram of a second hook body in an interlocking transfer window.

[0030] In the figure, 1, door body; 11, handle; 111, first hook body; 2, box body; 21, passage; 3, mounting plate; 4, interlocking mechanism; 41, locking plate; 411, angle plate; 4111, first limiting protrusion; 4112, third straight arm; 4113, second straight arm; 412, connecting sleeve; 4121, limiting through hole; 413, second hook body; 4131, first straight arm; 4132, hook body; 4133, second limiting protrusion; 42, positioning pin; 43, rotating shaft; 44, tension spring; 45, support rod; 46, limiting ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 8 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0032] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0036] The utility model provides an interlocking transfer window, comprising: a box body 2, the box body 2 is provided with a channel 21 with two open ends, two opposite surfaces of the channel 21 are respectively rotatably mounted with door bodies 1, the inner sides of the opening and closing edges of the two door bodies 1 each extend a first hook body 111 toward the opposite side; a mounting plate 3, the mounting plate 3 is fixedly mounted on the inner side of the side wall of the channel 21; a locking mechanism 4, the opposite ends of the mounting plate 3 are respectively provided with a locking mechanism 4, the locking mechanism 4 comprises a locking plate 41, a tension spring 44 and a strut 45, the locking plate 41 comprises an angle plate 411 rotatably connected to the mounting plate 3 through a rotating shaft 43, a second hook body 413 connected to one end of the angle plate 411, the second hook body 413 cooperates with the first hook body 111 close to it, the strut 45 and the tension spring 44 are simultaneously connected to one end of the angle plate 411 away from the second hook body 413 One end of the tension spring 44 is hinged to the angle plate 411, and the other end of the tension spring 44 is hinged to the mounting plate 3. The hinge between the tension spring 44 and the mounting plate 3 is located between the two locking plates 41. One end of the support rod 45 is hinged to the angle plate 411, and the other end of the support rod 45 extends to the end position of the side wall of the channel 21 and contacts the opening and closing edge of the corresponding door body 1. One side of the angle plate 411 is in contact with the mounting plate 3. The angle plate 411 and the second hook body 413 are split structures. The locking plate 41 also includes a connecting sleeve 412, which extends in a direction perpendicular to the angle plate 411. The connecting sleeve 412 is connected between the angle plate 411 and the second hook body 413. One end of the connecting sleeve 412 is plugged into and matched with the side of the angle plate 411 facing away from the mounting plate 3, and the other end of the connecting sleeve 412 is plugged into and matched with the second hook body 413.

[0037] In the technical solution proposed in the present application, when the door body 1 cannot be opened due to deformation of the lock piece 41 or the first hook body 111, the force of pulling the door body 1 outward can be increased. Under a relatively large force, since the angle plate 411 and the second hook body 413 are respectively plugged and matched with the connecting sleeve 412, the connecting sleeve 412 and the angle plate 411, and the connecting sleeve 412 and the second hook body 413 will separate. The door body 1 can be opened without disassembling the door body 1 as a whole. When repairing, usually only the door body 1 needs to be repaired. The deformed or damaged connecting sleeve 412 only needs to be replaced, and the locking plate 41 and the first hook body 111 usually only need to be reshaped; since the connecting sleeve 412 is inserted into the side of the angle plate 411 away from the mounting plate 3, it can not only ensure that the first hook body 111 and the second hook body 413 are matched in the appropriate position, but also make the side of the angle plate 411 and the side of the mounting plate 3 fit together. When the side of the angle plate 411 and the side of the mounting plate 3 fit together, the gap between the angle plate 411 and the mounting plate 3 is zero, which can effectively prevent the shaft 43 from being deformed during use.

[0038] It should be noted that the connecting sleeve 412 is a wearing part that "sacrifices" itself to protect the remaining structures. It can be a plastic part. When the door body 1 is opened with a large force, the plastic part will be deformed or damaged, and the connecting sleeve 412 and the corner plate 411, as well as the connecting sleeve 412 and the second hook body 413 will be more easily separated.

[0039] It should also be noted that the present application realizes interlocking in the following manner: Figure 3 As shown, when the right door body 1 is in a closed state, the opening and closing edge of the right door body 1 abuts against the free end of the corresponding support rod 45, so that the second hook body 413 on the left side is separated from the first hook body 111 on the left door body 1; Figure 4 As shown, when the door body 1 on the right side is in the open state, the opening and closing edge of the door body 1 on the right side is separated from the free end of the corresponding support rod 45, and the second hook body 413 on the left side is rotated by a certain angle in the vertical plane under the restoring force of the tension spring 44 on the left side, and then hooked with the first hook body 111 on the left side door body 1, so that when the door body 1 on the right side is opened, the door body 1 on the left side cannot be opened. Similarly, when the door body 1 on the left side is opened, the door body 1 on the right side cannot be opened either, thereby ensuring that the door bodies on both sides can be closed at the same time, but cannot be opened at the same time.

[0040] As for the plug-in matching structure of the connecting sleeve 412 and the angle plate 411, and the plug-in matching structure of the connecting sleeve 412 and the second hook body 413, as a preferred embodiment, more specifically, a first limiting protrusion 4111 is provided on the side of the angle plate 411 away from the mounting plate 3, a limiting through hole 4121 is provided on the connecting sleeve 412, and a second limiting protrusion 4133 is provided on the side of the second hook body 413, one end of the limiting through hole 4121 is plug-in matched with the first limiting protrusion 4111, and the other end of the limiting through hole 4121 is plug-in matched with the second limiting protrusion 4133. The first limiting protrusion 4111 and the limiting through hole 4121, and the second limiting protrusion 4133 and the limiting through hole 4121 are connected by interference fit, so as to ensure that the present application can be interlocked normally and can also be easily repaired.

[0041] The technical solution of the present application is applicable to an interlocking transfer window with a single-layer structure, but it is also applicable to an interlocking transfer window with a double-layer structure. When the interlocking transfer window is a double-layer structure, the number of channels 2 is two, and door bodies 1 are respectively rotatably installed on two opposite sides of the two channels 2, and the two door bodies 1 located on the same side of the channel 2 share a handle 11.

[0042] Regarding the structure of the second hook body 413, as a preferred embodiment, more specifically, the second hook body 413 includes a first straight arm 4131 and a hook body 4132, the second limiting protrusion 4133 is provided at one end of the first straight arm 4131, and the hook body 4132 is provided at the other end of the first straight arm 4131. The hook body 4132 can be formed by bending the first straight arm 4131.

[0043] It should be noted that the structure of the hook body 4132 is varied and is not limited to the structure shown in the figure.

[0044] The angle plate 411 includes a second straight arm 4113 and a third straight arm 4112, the second straight arm 4113 and the third straight arm 4112 are perpendicular to each other, the vertical connection between the second straight arm 4113 and the third straight arm 4112 is connected to the rotating shaft 43, the tension spring 44 and the support rod 45 are respectively connected to the second straight arm 4113, and the connecting sleeve 412 is connected to the third straight arm 4112.

[0045] In order to limit the rotation of the angle plate 411, the interlocking mechanism 4 also includes a positioning pin 42, which is installed on the mounting plate 3. When the second hook body 413 is hooked with the corresponding first hook body 111, the positioning pin 42 blocks the third straight arm 4112. In a specific embodiment, the positioning pin 42 can be set to a detachable structure, so as to facilitate the replacement of the positioning pin 42. When the first hook body 111 and the second hook body 413 are matched, under the action of the positioning pin 42, the force between the first hook body 111 and the second hook body 413 can be limited to prevent the force between the first hook body 111 and the second hook body 413 from being too large.

[0046] Regarding the connection structure between the support rod 45 and the channel 2, as a preferred embodiment, more specifically, the interlocking transfer window also includes two limit rings 46 fixedly mounted on the mounting plate 3, the two limit rings 46 are respectively sleeved on the two support rods 45, and the matching position of the limit ring 46 and the support rod 45 is close to the free end of the support rod 45. The limit ring 4 is a metal ring, and the role of the limit ring 4 is to make the corresponding support rod 45 move in a limited direction perpendicular to the support rod 45, thereby better ensuring that the end of the support rod 45 can abut and disengage with the door body 1.

[0047] The tension spring 44 is connected to the mounting plate 3 via a pin, and the pin and the mounting plate 3 are detachably connected.

[0048] For details not mentioned in this application, please refer to the comparative literature pointed out in the background technology, which will not be repeated here.

[0049] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An interlocking transfer window, comprising: A box body, wherein the box body is provided with a passage with two open ends, and two opposite sides of the passage are respectively rotatably mounted with door bodies, and the inner sides of the opening and closing edges of the two door bodies each extend a first hook body toward the opposite side; A mounting plate, the mounting plate being fixedly mounted on the inner side of the side wall of the channel; A locking mechanism, wherein the locking mechanisms are respectively provided at opposite ends of the mounting plate, the locking mechanism comprising a locking plate, a tension spring and a strut, the locking plate comprising an angle plate rotatably connected to the mounting plate via a rotating shaft, a second hook body connected to one end of the angle plate, the second hook body cooperates with the first hook body close thereto, the strut and the tension spring are simultaneously connected to an end of the angle plate away from the second hook body, one end of the tension spring is hinged to the angle plate, the other end of the tension spring is hinged to the mounting plate, the hinged portion of the tension spring and the mounting plate is located between the two locking plates, the One end of the support rod is hinged to the angle plate, and the other end of the support rod extends to the end position of the side wall of the channel and cooperates with the opening and closing edge of the corresponding door body, and is characterized in that one side of the angle plate is in contact with the mounting plate, and the angle plate and the second hook body are split structures, and the locking plate also includes a connecting sleeve, which extends in a direction perpendicular to the angle plate, and the connecting sleeve is connected between the angle plate and the second hook body, one end of the connecting sleeve is plugged into and cooperated with the side of the angle plate away from the mounting plate, and the other end of the connecting sleeve is plugged into and cooperated with the second hook body.

2. The interlocking transfer window according to claim 1, characterized in that: The angle plate is provided with a first limiting protrusion, the connecting sleeve is provided with a limiting through hole, the side of the second hook body is provided with a second limiting protrusion, one end of the limiting through hole is plugged into and matched with the first limiting protrusion, and the other end of the limiting through hole is plugged into and matched with the second limiting protrusion.

3. The interlocking transfer window according to claim 1, characterized in that: The interlocking transfer window is a double-layer structure, the number of the channels is two, the door bodies are rotatably mounted on two opposite sides of the two channels, and the two door bodies located on the same side of the channels share a handle.

4. The interlocking transfer window according to claim 2, characterized in that: The second hook body includes a first straight arm and a hook body, the second limiting protrusion is arranged at one end of the first straight arm, and the hook body is arranged at the other end of the first straight arm.

5. The interlocking transfer window according to claim 1, characterized in that: The angle plate includes a second straight arm and a third straight arm, the second straight arm and the third straight arm are perpendicular to each other, the vertical connection between the second straight arm and the third straight arm is connected to the rotating shaft, the tension spring and the support rod are respectively connected to the second straight arm, and the connecting sleeve is connected to the third straight arm.

6. The interlocking transfer window according to claim 5, characterized in that: The interlocking mechanism further comprises a positioning pin, which is mounted on the mounting plate. When the second hook body is hooked with the corresponding first hook body, the positioning pin blocks the third straight arm.

7. The interlocking transfer window according to claim 1, characterized in that: The interlocking mechanism also includes two limiting rings fixedly mounted on the mounting plate. The two limiting rings are respectively sleeved on two support rods. The matching positions of the limiting rings and the support rods are close to the free ends of the support rods.

8. The interlocking transfer window according to claim 1, characterized in that: The tension spring is connected to the mounting plate via a pin, and the pin and the mounting plate are detachably connected.

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