Door lock of air conditioner access door

Abstract

The utility model discloses a door lock of an air conditioner access door, which comprises a base fixed on the access door, a spring bolt rotationally arranged on the base and a lock catch fixed on a door frame of the access door and matched with the spring bolt, the two ends of the lock catch are connected with the corresponding fixing seats through adjusting screws respectively, an opening is formed in the face, opposite to the lever handle, of the lock catch, and the spring bolt is arranged in the opening. According to the utility model, the tightness of the access door can be regulated and controlled by adjusting the door lock.

Description

Technical Field

[0001] The utility model relates to a door lock, in particular to a door lock for an air-conditioning maintenance door. Background Art

[0002] In order to facilitate the maintenance of the air conditioner, an inspection door is usually provided on the air conditioner casing. When the air conditioner breaks down, the maintenance personnel can directly open the inspection door to repair the air conditioner.

[0003] The inspection doors on existing air-conditioning boxes are composed of door panels and door frames. The door panels are embedded in the door frames, which means there will be a gap between the door panels and the door frames. Due to the pressure difference between the air-conditioning box and the external atmospheric pressure, air will flow from the high-pressure area to the low-pressure area through the gap between the door panels and the door frames under the action of the pressure difference. Although the inspection doors of this structure will be equipped with sealing strips inside for sealing operations, due to the existence of the gap, the sealing performance of the sealing strips will rapidly decrease as the sealing strips age, thereby affecting the air volume and energy consumption of the air-conditioning system. Utility Model Content

[0004] The utility model aims to provide a door lock for an air conditioner maintenance door in order to overcome the deficiencies of the prior art and solve the problem that the sealing degree of the maintenance door cannot be adjusted by the door lock.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a door lock for an air-conditioning maintenance door, comprising a base fixed on the maintenance door, a lock tongue rotatably set on the base, and a lock buckle fixed on the door frame of the maintenance door and cooperating with the lock tongue. A fixing seat is symmetrically provided on the door frame at the corresponding upper and lower ends of the lock buckle. The two ends of the lock buckle are respectively connected to the corresponding fixing seats by adjusting screws. An opening is provided on the opposite surface of the lock buckle to the handle, and the lock tongue is arranged in the opening.

[0006] Furthermore, an arc-shaped protrusion is provided on the inner wall of the front end of the opening, and the locking tongue is in contact with the arc-shaped protrusion.

[0007] Furthermore, a protrusion is provided on the fixing seat, an adjusting screw hole is provided on the protrusion, a groove is provided at the upper and lower ends of the lock buckle opposite to the protrusion, a first screw hole is provided on the groove, the protrusion is arranged in the groove, and is connected to the adjusting screw hole by passing the adjusting screw through the first screw hole.

[0008] Furthermore, a second threaded hole is respectively provided at the upper and lower ends of the lock buckle, a second screw threadedly connected is provided in the second threaded hole, and the bottom of the second screw is in contact with the fixing seat.

[0009] Furthermore, the inner walls on both sides of the opening are arc-shaped, and the opening is arranged to gradually decrease in size from the side close to the lock tongue to the other side.

[0010] Furthermore, the lock tongue is provided with a handle which rotates along with the lock tongue.

[0011] The utility model adopts the above structure to achieve the following beneficial effects: the utility model provides an air-conditioning maintenance door lock, which adjusts the opening height between the lock buckle and the maintenance door by adjusting the adjusting screw and the second screw, thereby controlling the compression of the maintenance door on the sealing strip through the lock tongue, producing a sealing effect when the lock tongue is locked, and realizing the regulation of the sealing degree. At the same time, an arc-shaped protrusion is provided in the opening, and the arc-shaped contact is used to facilitate progressive locking during the complete locking process of the lock tongue. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0013] Figure 1 The figure is a schematic structural diagram of the air conditioner maintenance door lock according to the present invention.

[0014] Figure 2 This is a schematic structural diagram of the lock buckle described in the present utility model.

[0015] Figure 3 This is a structural schematic diagram of the fixing seat described in the utility model.

[0016] Among them: 1. Lock tongue; 2. Lock buckle; 3. Fixed seat; 4. Opening; 5. Arc-shaped protrusion; 6. Bump; 7. Adjustment screw hole; 8. Groove; 9. First screw hole; 10. Second threaded hole; 11. Base. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0018] Aiming at the demand for door locks for air conditioner maintenance doors, the designer of the utility model innovatively proposes an air conditioner maintenance door lock, which can adjust the sealing degree of the maintenance door through the door lock.

[0019] like Figures 1 to 3 As shown, a door lock for an air-conditioning maintenance door includes a base 11 fixed on the maintenance door, a lock tongue 1 rotatably set on the base 11, and a lock buckle 2 fixed on the door frame of the maintenance door and cooperating with the lock tongue 1. A fixing seat 3 is symmetrically provided on the door frame at the corresponding upper and lower ends of the lock buckle 2. The two ends of the lock buckle 2 are respectively connected to the corresponding fixing seats 3 by adjusting screws. An opening 4 is provided on the surface of the lock buckle 2 opposite to the handle, and the lock tongue 1 is arranged in the opening 4.

[0020] An arc-shaped protrusion 5 is provided on the inner wall of the front end of the opening 4, and the lock tongue 1 contacts the arc-shaped protrusion 5, so that the lock tongue 1 is gradually locked during the locking process.

[0021] The fixing seat 3 is provided with a protrusion 6, and the protrusion 6 is provided with an adjusting screw hole 7. The upper and lower ends of the lock buckle 2 are respectively provided with a groove 8 at positions opposite to the protrusion 6, and the groove 8 is provided with a first screw hole 9. The protrusion 6 is arranged in the groove 8 and is connected to the adjusting screw hole 7 by passing the adjusting screw through the first screw hole 9.

[0022] A second threaded hole 10 is respectively formed at the upper and lower ends of the lock buckle 2 . A second screw is threadedly provided in the second threaded hole 10 , and the bottom of the second screw is in contact with the fixing seat 3 .

[0023] The inner walls on both sides of the opening 4 are arc-shaped, and the opening 4 is arranged to gradually become smaller from one side close to the lock tongue 1 to the other side.

[0024] The lock tongue 1 is provided with a handle which rotates along with the lock tongue 1 .

[0025] When in use, turn the handle, and the lock tongue 1 follows the handle to rotate into the opening 4 and is gradually locked. According to the sealing condition of the sealing strip of the inspection door, turn the second screw and the adjusting screw to adjust the height of the opening 4 to achieve the compression scale of the lock buckle 2 on the lock tongue 1, thereby realizing the sealing control of the inspection door.

[0026] The utility model adopts the above structure to achieve the following beneficial effects: the utility model provides an air-conditioning maintenance door lock, which adjusts the opening height between the lock buckle and the maintenance door by adjusting the adjusting screw and the second screw, thereby controlling the compression of the maintenance door on the sealing strip through the lock tongue, producing a sealing effect when the lock tongue is locked, and realizing the regulation of the sealing degree. At the same time, an arc-shaped protrusion is provided in the opening, and the arc-shaped contact is used to facilitate progressive locking during the complete locking process of the lock tongue.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A door lock for an air conditioner maintenance door, comprising a base fixed on the maintenance door, a lock tongue rotatably arranged on the base, and a lock catch fixed on the door frame of the maintenance door and cooperating with the lock tongue, characterized in that: The door frame is symmetrically provided with a fixing seat at the corresponding upper and lower ends of the lock, and the two ends of the lock are respectively connected to the corresponding fixing seats through adjusting screws. The lock is provided with an opening on the opposite side of the lock and the handle, and the lock tongue is arranged in the opening.

2. The air conditioning maintenance door lock according to claim 1, characterized in that: An arc-shaped protrusion is provided on the inner wall of the front end of the opening, and the locking tongue contacts the arc-shaped protrusion.

3. The air conditioner maintenance door lock according to claim 1, characterized in that: The fixing seat is provided with a protrusion, and the protrusion is provided with an adjusting screw hole. The upper and lower ends of the lock buckle are respectively provided with a groove at positions opposite to the protrusion, and the groove is provided with a first screw hole. The protrusion is arranged in the groove and is connected to the adjusting screw hole by passing the adjusting screw through the first screw hole.

4. The air conditioning maintenance door lock according to claim 1, characterized in that: A second threaded hole is respectively provided at the upper and lower ends of the lock buckle, a second screw threadedly connected is provided in the second threaded hole, and the bottom of the second screw is in contact with the fixing seat.

5. The air conditioner maintenance door lock according to claim 1, characterized in that: The inner walls on both sides of the opening are arc-shaped, and the opening is arranged to gradually decrease in size from one side close to the lock tongue to the other side.

6. The air conditioning maintenance door lock according to claim 1, characterized in that: The lock tongue is provided with a handle which rotates along with the lock tongue.

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