Door body assembly and air conditioning unit

Abstract

The application provides a door body assembly and an air conditioning unit. The door body assembly comprises a door frame, a first rotating cooperation structure arranged on the door frame, a door body having a first end and a second end opposite to each other, the first end being hinged to the door frame, and a rotating shaft. The door body assembly and the air conditioning unit provided by the application lock the rotating shaft by using a locking structure, so that the first rotating cooperation structure and the second rotating cooperation structure cannot rotate relative to each other, thereby realizing the locking of the door body and the door frame and completing the sealing. At the same time, due to the locking of the rotating shaft by the locking structure, the single-point constraint of the door lock on the door body in the prior art is effectively changed into the overall constraint on the rotating shaft. Since the length of the rotating shaft is much larger than the size of the door lock, the problem of deformation and air leakage of the door body during use can be avoided, and the installation reliability of the door body assembly is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door body, in particular to a door body assembly and an air conditioning unit. BACKGROUND

[0002] The access door is one of the devices that uses the sealing effect between the door and the door frame to ensure the safety of the equipment operation, and is usually used at the place of the gas leakage pipeline or equipment, such as sewage treatment equipment, gas purification equipment, boiler combustion equipment, etc. Its main function is to prevent gas leakage, prevent steam leakage, prevent smoke condensation, etc. At present, when the access door commonly used in the direct expansion machine adopts the positive and negative pressure universal type, although it does not need to identify the installation position, the locking of the door only relies on the single point constraint of the door lock, and in the long-term use, the door is gradually deformed and there is air leakage, which causes the problem of poor reliability of the access door. SUMMARY

[0003] In order to solve the technical problem of poor reliability of the access door in the prior art, a door body assembly and an air conditioning unit that are universal for positive and negative pressure are provided.

[0004] A door body assembly comprises:

[0005] A door frame, wherein a first rotation matching structure is arranged on the door frame;

[0006] A door body, wherein the door body has opposite first and second ends, and the first end is hinged to the door frame;

[0007] A rotating shaft, wherein the rotating shaft is rotatably arranged at the second end of the door body, a second rotation matching structure is arranged on the rotating shaft, and the first rotation matching structure and the second rotation matching structure are rotationally matched;

[0008] A locking structure, wherein the locking structure is arranged on the door body, and the locking structure is locked with the rotating shaft.

[0009] The rotating shaft is provided with a locking hole, the locking structure comprises a jacking rod, and the jacking rod has a locking state of protruding from the door body and extending into the locking hole and an opening state of being withdrawn from the locking hole and being retracted into the door body.

[0010] The door body assembly further comprises a driving structure, wherein the driving structure is arranged on the door body, and the jacking rod is connected to the driving structure.

[0011] The driving structure comprises a rotating block, wherein a groove is arranged on the rotating block, the bottom surface of the groove is a slope, and one end of the jacking rod abuts against the bottom surface of the groove.

[0012] The driving structure further comprises a reset member, wherein the reset member is arranged on the door body, the jacking rod is connected to the reset member, and the reset member can drive the jacking rod to switch to the opening state.

[0013] The reset member is arranged in the locking hole, the top rod is in abutting fit with the reset member, and the reset member can drive the top rod to switch to the opening state.

[0014] The reset member comprises a spring.

[0015] The door frame is provided with a rack, the rotating shaft is provided with a rotating tooth, the rotating tooth is in rotating fit with the rack, the rack constitutes the first rotating fit structure, and the rotating tooth constitutes the second rotating fit structure.

[0016] The door body is provided with a magnetic force member, and the magnetic force member is in magnetic force fit with the second rotating fit structure.

[0017] The rotating shaft is provided with a first sealing plate, and the first sealing plate is in abutting fit with the first side surface of the door frame.

[0018] The door body is provided with a second sealing plate, and the second sealing plate is in abutting fit with the second side surface of the door frame.

[0019] The air conditioning unit comprises the door body assembly.

[0020] The door body assembly and the air conditioning unit provided by the application lock the rotating shaft by using the locking structure, so that the first rotating fit structure and the second rotating fit structure cannot relatively rotate, the door body and the door frame are locked, and the door body is closed. In addition, the locking structure effectively changes the single-point constraint of the door lock on the door body in the prior art into the overall constraint of the door lock on the rotating shaft. Since the length of the rotating shaft is much larger than the size of the door lock, the problem of deformation and air leakage of the door body during use can be avoided, and the installation reliability of the door body assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 The structure diagram of the door body assembly provided by the embodiment of the application is shown in the figure.

[0022] Fig. 2 The partial sectional view of the door body assembly provided by the embodiment of the application is shown in the figure.

[0023] Fig. 3 The side view of the door body assembly provided by the embodiment of the application is shown in the figure.

[0024] In the figure:

[0025] 1, door frame; 11, first rotating fit structure; 2, door body; 3, rotating shaft; 31, second rotating fit structure; 4, locking structure; 32, locking hole; 41, top rod; 42, rotating block; 43, groove; 44, reset member; 5, first sealing plate. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0027] like Figs. 1-3 The door assembly shown includes: a door frame 1, on which a first rotational engagement structure 11 is provided; a door body 2, having a first end and a second end opposite to each other, the first end being hinged to the door frame 1; a pivot 3, rotatably disposed at the second end of the door body 2, the pivot 3 having a second rotational engagement structure 31, the first rotational engagement structure 11 and the second rotational engagement structure 31 being rotatably engaged; and a locking structure 4, disposed on the door body 2, and the locking structure 4 being locked in engagement with the pivot 3. By using a locking structure to lock the pivot 3, relative rotation between the first and second rotary mating structures is prevented, thereby locking the door body 2 to the door frame 1 and completing the closure. At the same time, the locking structure effectively transforms the single-point constraint of the door body 2 on the existing technology into an overall constraint on the pivot 3. Since the length of the pivot 3 is much larger than the size of the door lock, the problem of deformation and air leakage of the door body 2 during use can be avoided, thus improving the reliability of the door assembly installation.

[0028] When door 2 needs to be opened, locking structure 4 is activated. At this time, pivot 3 and the second rotational engagement structure 31 can rotate. As door 2 rotates and opens, the second rotational engagement structure 31 can rotate relative to the first rotational engagement structure 11, thus opening door 2. When door 2 needs to be closed, door 2 is rotated towards door frame 1. At this time, the second rotational engagement structure 31 can rotate under the influence of the first rotational engagement structure 11. After door 2 is closed, locking structure 4 locks pivot 3, thus closing door 2.

[0029] Specifically, when the door 2 is opened in the positive pressure direction, the second rotational fitting structure 31 rotates in the first direction, while when the door 2 is opened in the negative pressure direction, the second rotational fitting structure 31 rotates in the second direction.

[0030] The rotating shaft 3 is provided with a locking hole 32. The locking structure 4 includes a push rod 41, which has a locked state that protrudes from the door body 2 and extends into the locking hole 32, and an open state that disengages from the locking hole 32 and retracts into the door body 2. The door body 2 is locked by the engaging engagement between the push rod 41 and the locking hole 32.

[0031] The door body assembly further comprises a driving structure arranged on the door body 2, and the top rod 41 is connected to the driving structure. The driving structure can drive the top rod 41 to move so as to switch the top rod 41 between the open state and the locking state.

[0032] The driving structure comprises a rotating block 42, and a groove 43 is arranged on the rotating block 42. The bottom surface of the groove 43 is a slope, and one end of the top rod 41 abuts against the bottom surface of the groove 43. With the inclination of the slope, the length of the top rod 41 extending into the locking hole 32 can be adjusted, so as to realize the locking and opening of the door body 2.

[0033] As shown in Fig. 1 The number of the grooves 43 is multiple, and the corresponding groove 43 can be selected to cooperate with the setting position of the top rod 41.

[0034] The driving structure further comprises a reset member 44 arranged on the door body 2, and the top rod 41 is connected to the reset member 44. The reset member 44 can drive the top rod 41 to switch to the open state. The reset member 44 is used to control the movement of the top rod 41 to the bottom surface of the groove 43, so as to ensure that the top rod 41 can move along with the inclination of the bottom surface of the groove 43.

[0035] As another embodiment, the reset member 44 is arranged in the locking hole 32, and the top rod 41 abuts against and cooperates with the reset member 44. The reset member 44 can drive the top rod 41 to switch to the open state.

[0036] Optionally, the reset member 44 comprises a spring. When the top rod 41 enters the locking hole 32, the spring is compressed to accumulate elastic force. When the top rod 41 is not pressed by the bottom surface of the groove 43, the elastic force accumulated by the spring can drive the top rod 41 to move to the direction of the bottom surface of the groove 43, so as to move the top rod 41 along with the inclination of the bottom surface of the groove 43. At this time, the other end of the top rod 41 will gradually move out of the locking hole 32.

[0037] The door frame 1 is provided with a rack, and the rotating shaft 3 is provided with a rotating tooth which is in rotating cooperation with the rack, the rack constitutes the first rotating cooperation structure 11, and the rotating tooth constitutes the second rotating cooperation structure 31. When the door body 2 is opened, the rotating tooth moves with the door body 2 during the rotation of the door body 2, and the rotating tooth starts to rotate because the rotating tooth is in mesh with the rack at this time, and the rotating shaft 3 also rotates, and the locking hole 32 changes the opening direction, and the top rod 41 cannot enter the locking hole 32 at this time, and the door body 2 can be kept in the opened state, which is convenient for the maintenance personnel to enter and exit. When the door body 2 is closed, the rotating tooth moves with the door body 2 and gradually rotates in mesh with the rack, and when the door body 2 rotates to the set position, the locking hole 32 also rotates to the position which can cooperate with the top rod 41, and then the rotating block 42 is rotated to push the top rod 41 into the locking hole 32, and the locking of the door body 2 is completed.

[0038] When the length of the rack is set, the stroke size of the gear rotating 180 degrees is calculated, and then the rack is installed on the door frame 1, and the length of the rack meets the stroke requirement of the rotation.

[0039] The door body 2 is provided with a magnetic element which is in magnetic cooperation with the second rotating cooperation structure. The second rotating cooperation structure is adsorbed by the magnetic element, and the rotation of the second rotating cooperation structure when the door body 2 is opened is avoided to affect the cooperation of the top rod 41 when the door body 2 is closed, and the reliability of the locking of the door body 2 is ensured.

[0040] In order to increase the reliability of the door body assembly under the conditions of positive pressure and negative pressure, the rotating shaft 3 is provided with a first sealing plate 5 which is in abutting cooperation with the first side surface of the door frame 1. Similarly, the door body 2 is provided with a second sealing plate 6 which is in abutting cooperation with the second side surface of the door frame 1. When the first side surface of the door body 2 and the door frame 1 is subjected to positive pressure (or the second side surface of the door body 2 and the door frame 1 is subjected to negative pressure), the rotating shaft 3 is locked by the locking structure 4, and the first sealing plate 5 cannot move at this time, so that the extrusion force of the door frame 1 can be generated to avoid the movement of the door body 2. When the second side surface of the door body 2 and the door frame 1 is subjected to positive pressure (or the first side surface of the door body 2 and the door frame 1 is subjected to positive pressure), the second sealing plate 6 extrudes the second side surface of the door frame 1, that is, no matter whether the door body is subjected to positive pressure or negative pressure, the first sealing plate 5 or the second sealing plate 6 is used to extrude the door frame 1, so that the cooperation between the surfaces of the door body 2 and the door frame 1 is realized, and the problem that the door body is easily deformed due to the single-point locking in the prior art is further avoided.

[0041] Preferably, the door frame 1 is made of high-quality polyurethane material, has strong acid and alkali resistance, good elasticity, and long service life.

[0042] An air conditioning unit comprises the door body assembly.

[0043] The above embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A door assembly, characterized by: The door body assembly comprises: a door frame (1) provided with a first rotation matching structure (11); a door body (2) having opposite first and second ends, the first end being hinged to the door frame (1); a rotating shaft (3) rotatably arranged at the second end of the door body (2), the rotating shaft (3) being provided with a second rotation matching structure (31), the first rotation matching structure (11) and the second rotation matching structure (31) being rotationally matched; a locking structure (4) arranged on the door body (2) and locked with the rotating shaft (3).

2. The door assembly of claim 1, wherein: The rotating shaft (3) is provided with a locking hole (32), the locking structure (4) comprises a top rod (41), the top rod (41) has a locking state of protruding from the door body (2) and extending into the locking hole (32), and an opening state of being withdrawn from the locking hole (32) and being retracted into the door body (2).

3. The door assembly of claim 2, wherein: The door body assembly further comprises a driving structure arranged on the door body (2), and the top rod (41) is connected to the driving structure.

4. The door assembly of claim 3, wherein: The driving structure comprises a rotating block (42) provided with a groove (43), the bottom surface of the groove (43) is a slope, and one end of the top rod (41) abuts against the bottom surface of the groove (43).

5. The door assembly of claim 4, wherein: The driving structure further comprises a reset member (44) arranged on the door body (2), the top rod (41) is connected to the reset member (44), and the reset member (44) can drive the top rod (41) to switch to the opening state.

6. The door assembly of claim 2, wherein: The locking hole (32) is provided with a reset member (44), the top rod (41) is in abutting cooperation with the reset member (44), and the reset member (44) can drive the top rod (41) to switch to the opening state.

7. The door assembly of claim 5 or 6, wherein: The reset member (44) comprises a spring.

8. The door assembly of claim 3, wherein: The door frame (1) is provided with a rack, the rotating shaft (3) is provided with a rotating tooth, the rotating tooth is rotationally matched with the rack, the rack constitutes the first rotation matching structure (11), and the rotating tooth constitutes the second rotation matching structure (31).

9. The door assembly of claim 1, wherein: The door body (2) is provided with a magnetic member, the magnetic member is magnetically matched with the second rotation matching structure (31).

10. The door assembly of claim 1, wherein: The rotating shaft (3) is provided with a first sealing plate (5), the first sealing plate (5) is in abutting cooperation with the first side surface of the door frame (1).

11. The door assembly of claim 10, wherein: The door body (2) is provided with a second sealing plate (6), the second sealing plate (6) is in abutting cooperation with the second side surface of the door frame (1).

12. An air conditioning unit characterized by: The door body assembly comprises any one of claims 1-11.

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