Power assisting device for opening and closing cold storage door

Abstract

The utility model discloses a power assisting device for opening and closing a cold storage door, which belongs to the technical field of cold storage doors and comprises a door frame, a door groove formed in the surface of the door frame, a baffle fixedly connected to the surface of the door frame and a door body mounted on the surface of the door frame. The transmission output end of the servo motor is in transmission connection with a threaded rod; an inner threaded sleeve is fixedly connected to the surface of the door body, the threaded rod penetrates through the inner threaded sleeve and is in transmission connection with the inner threaded sleeve, and the inner threaded sleeve extends to the inner position of the door body. When the door needs to be opened, the servo motor is started through external control equipment, and the door body is pulled to slide relative to the door frame under the transmission action of the threaded rod and the inner threaded sleeve; the guide holes are symmetrically formed in the surface of the door body, the polish rods are inserted into the guide holes and arranged in a sliding mode, the polish rods support and guide the door body in an auxiliary mode, the stability in the moving process is improved, and the good power assisting performance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cold storage door technology, and more specifically, to an assistive device for opening and closing cold storage doors. Background Technology

[0002] Cold storage doors are doors installed in cold storage equipment, freezer rooms, and other refrigerated environments to provide insulation and airtightness. The way a cold storage door is connected to its frame varies, resulting in different opening mechanisms. Common installation methods include hinged rotating connections and sliding connections.

[0003] A search revealed an automatic cold storage door with publication number CN206556342U, comprising a door frame and a sliding door. The bottom of the door frame has a groove within which the sliding door can slide. The top of the door frame has a slide rail, and the sliding door has a trolley that rolls within the slide rail. A motor and a fixed pulley are also located at the top of the door frame. A pulley is mounted on the motor shaft. A transmission belt connected to the pulley and fixed pulley is located at the slide rail. The trolley is fixed to the transmission belt. A switch for starting and closing the motor is located on one side of the door frame. When the operator needs to open the cold storage, they can press the switch on the side of the door frame to start the motor. Once started, the motor drives the trolley via the transmission belt, causing the sliding door to slide accurately from the doorway to one side, opening the cold storage. When the operator needs to close the cold storage, they simply press the switch again, allowing for easy and convenient opening and closing of the cold storage.

[0004] For horizontal sliding cold storage doors, users need to apply horizontal pushing force when opening the door, which is relatively strenuous and ineffective. Therefore, we have proposed an assistive device for opening and closing cold storage doors to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide an assistive device for opening and closing cold storage doors. A servo motor is fixedly connected to the assembly plate of the door frame, and a threaded rod is driven through the output end of the servo motor. An internally threaded sleeve is fixedly connected to the surface of the door body. The threaded rod passes through the internally threaded sleeve and is driven through it. The internally threaded sleeve extends to the interior of the door body. When the door needs to be opened, the servo motor is started by an external control device. Under the transmission action of the threaded rod and the internally threaded sleeve, the door body is pulled to slide relative to the door frame. A smooth rod is vertically installed on the surface of the support base. Guide holes are symmetrically opened on the surface of the door body. The smooth rod is inserted into the guide holes and is slidably set. The smooth rod provides auxiliary support and guidance for the door body, improves the stability during movement, is easy to operate, and has excellent assistive performance.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A door-opening and closing assist device for a cold storage door includes a door frame, a door groove formed on the surface of the door frame, a baffle fixedly connected to the surface of the door frame, and a door body installed on the surface of the door frame. A servo motor is fixedly connected to the surface of the door frame via an assembly plate, and a threaded rod is driven to the transmission output end of the servo motor.

[0010] An internally threaded sleeve is fixedly connected to the surface of the door body. The threaded rod passes through the internally threaded sleeve and is a transmission connection. The internally threaded sleeve extends to the interior of the door body.

[0011] Preferably, the surface of the door frame is symmetrically equipped with support bases, and the surface of the support bases is vertically equipped with light rods.

[0012] Preferably, the surface of the door is symmetrically provided with guide holes, and the light rod is inserted into the inside of the guide holes and is slidably configured.

[0013] Preferably, the outer surface of the door frame is provided with a sliding groove, and a slider is fixedly connected to the surface of the door body. The slider is inserted into the sliding groove and is slidably configured.

[0014] Preferably, a sealing strip is adhered to the surface of the baffle, and the sealing strip is located on one side of the door.

[0015] Preferably, a guide frame is fixedly connected to the surface of the door body, and a locking bolt is spirally inserted into the surface of the guide frame.

[0016] Preferably, a guide rod is inserted through the inside of the guide frame, and a caster is rotatably connected to the bottom end of the guide rod.

[0017] 3. Beneficial effects

[0018] Compared with existing technologies, the advantages of this utility model are:

[0019] (1) The assembly plate of the door frame in this solution is fixedly connected to a servo motor. The transmission output end of the servo motor is connected to a threaded rod. The surface of the door body is fixedly connected to an internal threaded sleeve. The threaded rod passes through the internal threaded sleeve and is a transmission connection. The internal threaded sleeve extends to the inside of the door body. When the door needs to be opened, the servo motor is started by an external control device. Under the transmission action of the threaded rod and the internal threaded sleeve, the door body is pulled to slide relative to the door frame. A smooth rod is vertically installed on the surface of the support base. Guide holes are symmetrically opened on the surface of the door body. The smooth rod is inserted into the inside of the guide hole and is slidably set. The smooth rod provides auxiliary support and guidance for the door body, improves the stability during the movement, is easy to operate, and has good assist performance.

[0020] (2) The guide frame of the door body in this solution is spirally inserted with locking bolts, and a guide rod is inserted through the inside of the guide frame. The bottom end of the guide rod is rotatably connected to a caster. According to the distance between the bottom of the door body and the ground, the guide rod is adjusted longitudinally relative to the guide frame until the caster is in contact with the ground. Then, the locking bolt is screwed relative to the guide frame. The insertion end of the locking bolt extends to the surface of the guide rod. During the use of the door body, it has a good anti-fall effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the door frame structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the door structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the caster and guide frame structure of this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Door frame; 101. Door groove; 2. Baffle; 3. Door body; 4. Casters; 5. Support base; 6. Smooth rod; 7. Servo motor; 8. Threaded rod; 9. Sealing strip; 10. Slide groove; 11. Slider; 12. Guide hole; 13. Internal threaded sleeve; 14. Guide rod; 15. Guide frame; 16. Locking bolt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Please see Figure 1-4 A door opening and closing assist device for a cold storage door includes a door frame 1, a door groove 101 formed on the surface of the door frame 1, a baffle 2 fixedly connected to the surface of the door frame 1, and a door body 3 installed on the surface of the door frame 1. A servo motor 7 is fixedly connected to the surface of the door frame 1 through an assembly plate, and a threaded rod 8 is drivenly connected to the transmission output end of the servo motor 7.

[0030] An internal threaded sleeve 13 is fixedly connected to the surface of the door body 3. The threaded rod 8 passes through the internal threaded sleeve 13 and is a transmission connection. The internal threaded sleeve 13 extends to the interior of the door body 3.

[0031] Support bases 5 are symmetrically installed on the surface of the door frame 1. A smooth rod 6 is vertically installed on the surface of the support base 5. Guide holes 12 are symmetrically opened on the surface of the door body 3. The smooth rod 6 is inserted into the guide hole 12 and is slidably set. A sliding groove 10 is opened on the outer surface of the door frame 1. A slider 11 is fixedly connected to the surface of the door body 3. The slider 11 is inserted into the sliding groove 10 and is slidably set. A sealing strip 9 is adhered to the surface of the baffle 2. The sealing strip 9 is located on one side of the door body 3.

[0032] It should be noted that a servo motor 7 is fixedly connected to the assembly plate of the door frame 1, and a threaded rod 8 is connected to the transmission output end of the servo motor 7. An internal threaded sleeve 13 is fixedly connected to the surface of the door body 3. The threaded rod 8 passes through the internal threaded sleeve 13 and is a transmission connection. The internal threaded sleeve 13 extends to the interior of the door body 3. When the door needs to be opened, the servo motor 7 is started by an external control device. Under the transmission action of the threaded rod 8 and the internal threaded sleeve 13, the door body 3 is pulled to slide relative to the door frame 1. A smooth rod 6 is vertically installed on the surface of the support base 5. Guide holes 12 are symmetrically opened on the surface of the door body 3. The smooth rod 6 is inserted into the interior of the guide hole 12 and is slidably set. The smooth rod 6 provides auxiliary support and guidance for the door body 3, improves the stability during movement, is easy to operate, and has good assist performance.

[0033] See Figure 1-4 A guide frame 15 is fixedly connected to the surface of the door body 3. A locking bolt 16 is screwed into the surface of the guide frame 15. A guide rod 14 is inserted through the inside of the guide frame 15. A caster 4 is rotatably connected to the bottom end of the guide rod 14.

[0034] It should be noted that the guide frame 15 of the door body 3 is screwed with locking bolts 16, and a guide rod 14 is inserted through the inside of the guide frame 15. The bottom end of the guide rod 14 is rotatably connected to a caster 4. According to the distance between the bottom of the door body 3 and the ground, the guide rod 14 is adjusted longitudinally relative to the guide frame 15 until the caster 4 is in contact with the ground. Then, the locking bolts 16 are screwed relative to the guide frame 15. The insertion end of the locking bolts 16 extends to the surface of the guide rod 14. During the use of the door body 3, it has a good anti-fall effect.

[0035] In use: A servo motor 7 is fixedly connected to the mounting plate of the door frame 1. A threaded rod 8 is connected to the transmission output end of the servo motor 7. An internal threaded sleeve 13 is fixedly connected to the surface of the door body 3. The threaded rod 8 passes through the internal threaded sleeve 13 and is a transmission connection. The internal threaded sleeve 13 extends to the interior of the door body 3. When the door needs to be opened, the servo motor 7 is started by an external control device. Under the transmission action of the threaded rod 8 and the internal threaded sleeve 13, the door body 3 is pulled to slide relative to the door frame 1. A smooth rod 6 is vertically installed on the surface of the support base 5. Guide holes 12 are symmetrically opened on the surface of the door body 3. The smooth rod 6 is inserted into the guide hole 12 and is slidable. The light rod 6 provides auxiliary support and guidance for the door body 3, improving stability during movement, facilitating operation, and providing excellent assist performance. A locking bolt 16 is spirally inserted into the surface of the guide frame 15 of the door body 3, and a guide rod 14 is inserted through the inside of the guide frame 15. A caster 4 is rotatably connected to the bottom end of the guide rod 14. Depending on the distance between the bottom of the door body 3 and the ground, the guide rod 14 is adjusted longitudinally relative to the guide frame 15 until the caster 4 is in contact with the ground. Then, the locking bolt 16 is tightened relative to the guide frame 15. The insertion end of the locking bolt 16 extends to the surface of the guide rod 14, providing excellent anti-fall effect during the use of the door body 3.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A door-opening and closing assist device for a cold storage door, comprising a door frame (1), a door groove (101) formed on the surface of the door frame (1), a baffle (2) fixedly connected to the surface of the door frame (1), and a door body (3) mounted on the surface of the door frame (1), characterized in that: The surface of the door frame (1) is fixedly connected to a servo motor (7) via an assembly plate, and the transmission output end of the servo motor (7) is connected to a threaded rod (8). The surface of the door body (3) is fixedly connected to an internal threaded sleeve (13), the threaded rod (8) passes through the internal threaded sleeve (13) and is a transmission connection, the internal threaded sleeve (13) extends to the inside of the door body (3), the surface of the door body (3) is fixedly connected to a guide frame (15), the surface of the guide frame (15) is screwed with a locking bolt (16), the inside of the guide frame (15) is inserted through a guide rod (14), and the bottom end of the guide rod (14) is rotatably connected to a caster (4).

2. The assistive device for opening and closing a cold storage door according to claim 1, characterized in that: The door frame (1) is symmetrically equipped with support bases (5), and the support bases (5) are vertically equipped with light rods (6).

3. The assistive device for opening and closing a cold storage door according to claim 2, characterized in that: The surface of the door (3) is symmetrically provided with guide holes (12), and the light rod (6) is inserted into the guide hole (12) and is slidably arranged.

4. The assistive device for opening and closing a cold storage door according to claim 1, characterized in that: The outer surface of the door frame (1) is provided with a sliding groove (10), and the surface of the door body (3) is fixedly connected with a slider (11). The slider (11) is inserted into the sliding groove (10) and is slidably configured.

5. The assistive device for opening and closing a cold storage door according to claim 1, characterized in that: A sealing strip (9) is adhered to the surface of the baffle (2), and the sealing strip (9) is located on one side of the door body (3).

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