Double-open type PVC free door

Abstract

The utility model discloses a double-open type PVC (polyvinyl chloride) free door, which comprises a door body and a reset mechanism, the PVC plate is fixedly connected with the frame body; an upper hinge is installed at the upper end of the frame body, a supporting piece is fixed to the lower end of the frame body, and the lower end of the supporting piece is rotationally connected with a lower supporting column. The idler wheel is fixed to the upper end of the vertical rod, a supporting inclined face is arranged on the upper end face of the supporting piece, the idler wheel makes rolling contact with the surface of the supporting inclined face, the vertical rod is slidably connected with the lower supporting column, a circumferential limiting mechanism is connected between the vertical rod and the lower supporting column, and the compression spring is arranged between the vertical rod and the lower supporting column. Vehicles such as forklifts can directly impact the PVC plate to push and open the door body, the operation is simple, and the passing efficiency is improved; the plate is adopted, so that the plate has the characteristics of being solid in leather, durable and low in price, the service life is prolonged, the maintenance cost is reduced, and the requirements of low cost and durability are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold storage, and more specifically relates to a double-opening PVC free door. Background Art

[0002] At present, with the increasing use of cold storage, the cold storage production workshop and cold storage warehouse logistics channel entrances not only require the channel doors to be highly flexible and open in both directions, but also to have high sealing and good thermal insulation.

[0003] The structure of the original cold storage door panel is a single sliding door installation structure. Although this installation structure can play a role in heat preservation, it is troublesome to operate for the passage that is frequently opened and closed, which affects the traffic efficiency;

[0004] Therefore, the existing cold storage free doors cannot meet the requirements of cleanliness, thermal insulation, economy and reliability, which often have a great impact on the production efficiency of cold storage factories and the efficiency of cold storage logistics outbound goods. They cannot meet the high cost-effectiveness requirements pursued by modern people, nor can they meet the high-tempo requirements of modern cold storage production and cold storage logistics.

[0005] In processing workshops in humid environments such as food processing plants, various areas are separated by doors. When transported items pass through, they often collide with the doors, causing damage to the doors. In this case, the commonly used method is to use automatic induction doors to automatically control the opening and closing of the doors through electronic devices. However, due to the high humidity and temperature in the processing workshop, the mechanical structure and electronic equipment are exposed to the humid environment for a long time, which will cause corrosion or short circuit of the electronic equipment circuit, and the service life will be greatly reduced, which increases the maintenance cost. Therefore, a low-cost and durable door is needed, and the door is very inconvenient to move. Utility Model Content

[0006] In order to solve the defects existing in the above-mentioned technology, the utility model provides a double-opening PVC free door, which aims to improve the problems of cumbersome opening and closing of cold storage doors, short life and high maintenance cost.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A double-opening PVC free door, comprising a door body and a reset mechanism;

[0009] The door body comprises a frame and a PVC board, the frame is L-shaped, and the PVC board is fixedly connected to the frame; an upper hinge is installed at the upper end of the frame, a support is fixed at the lower end of the frame, and a lower support is rotatably connected to the lower end of the support;

[0010] The reset mechanism includes a vertical pole, a roller and a compression spring, the roller is fixed to the upper end of the vertical pole, the upper end surface of the support member is provided with a supporting inclined surface, the roller is in rolling contact with the surface of the supporting inclined surface, the vertical pole is slidably connected to the lower support, a circumferential limiting mechanism is connected between the vertical pole and the lower support, and the compression spring is provided between the vertical pole and the lower support.

[0011] In an embodiment of the utility model, the upper hinge includes an upper mounting seat and a lower mounting seat, the upper mounting seat and the lower mounting seat are rotatably connected with a rotating shaft, the rotating shaft is coaxially arranged with the vertical pole, and the lower support column is coaxially arranged with the vertical pole.

[0012] In one embodiment of the utility model, a door frame is further included, wherein the upper mounting seat is fixedly connected to the door frame, the lower mounting seat is fixedly connected to the upper end of the frame body, and the lower end of the lower support is fixedly connected to the ground or the lower end of the door frame.

[0013] In an embodiment of the utility model, two door bodies are symmetrically arranged, and the two door bodies are symmetrically arranged, and the two door bodies are arranged opposite to each other in the door frame.

[0014] In one embodiment of the utility model, the support member is hollow and has a through groove, the through groove is circular and is coaxially arranged with the lower support column, the vertical rod slides through the through groove, a limiting ring is fixed at the lower end of the vertical rod, the compression spring is sleeved on the surface of the vertical rod, the lower end of the compression spring is in contact with the limiting ring, and the upper end of the compression spring is in contact with the top of the through groove.

[0015] In one embodiment of the utility model, the side of the frame is arranged parallel to the side of the door frame, the top of the frame is arranged parallel to the cross beam of the door frame, a sealing gasket is arranged between the side of the frame and the side of the door frame, and the sealing gasket is detachably fixedly connected to the frame.

[0016] In an embodiment of the utility model, a plane bearing is installed between the upper end surface of the lower support and the lower end surface of the support member.

[0017] In one embodiment of the utility model, a first ball groove is formed on the lower end surface of the support member, a second ball groove is formed on the upper end surface of the lower support column, and a ball is arranged between the first ball groove and the second ball groove, and a plurality of balls are arranged.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] Forklifts and other vehicles can directly hit the PVC board to push the door open, which is easy to operate and improves traffic efficiency. The board is durable and inexpensive, which extends the service life and reduces maintenance costs, meeting the requirements of low cost and durability. The door automatically resets and closes when moving, meeting the requirements of cold storage free doors for cleanliness, thermal insulation, economy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural diagram of a double-opening PVC free door in an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the door body in the embodiment of the utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the installation position of the support member in the embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of a three-dimensional structure of a support member in an embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the vertical pole in the embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of a three-dimensional structure in which a lower support column and a prismatic column are connected in an embodiment of the utility model;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the worm gear meshing in the embodiment of the utility model.

[0027] In the figure: 100, door body; 110, frame; 130, PVC board; 150, upper hinge; 170, lower pillar; 171, worm; 190, support member; 191, supporting slope; 300, reset mechanism; 310, vertical pole; 311, limit ring; 313, prismatic hole; 330, roller; 350, compression spring; 370, prismatic column; 371, worm wheel; 500, door frame. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments.

[0029] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] In the examples, unless otherwise specified, all the means used are conventional means in the art.

[0031] See also Figure 1-Figure 7, the present application provides a double-opening PVC free door, including a door body 100 and a reset mechanism 300;

[0032] The door body 100 includes a frame 110 and a PVC plate 130. The frame 110 is L-shaped, and the PVC plate 130 is fixedly connected to the frame 110. An upper hinge 150 is installed at the upper end of the frame 110, and a support member 190 is fixed at the lower end of the frame 110. The lower end of the support member 190 is rotatably connected to a lower support column 170.

[0033] The reset mechanism 300 includes a vertical rod 310, a roller 330 and a compression spring 350. The roller 330 is fixed to the upper end of the vertical rod 310. The upper end surface of the support member 190 is provided with a support inclined surface 191. The roller 330 is in rolling contact with the surface of the support inclined surface 191. The vertical rod 310 is slidably connected to the lower support column 170. A circumferential limiting mechanism is connected between the vertical rod 310 and the lower support column 170. The compression spring 350 is provided between the vertical rod 310 and the lower support column 170.

[0034] See also Figure 6-Figure 7 The circumferential limiting mechanism includes a prismatic column 370, the lower end of which is rotatably connected to the lower support 170, a worm wheel 371 is coaxially fixed to the lower end of the prismatic column 370, a worm 171 is rotatably mounted on the lower support 170, the worm wheel 371 is meshed with the worm 171, an inner hexagonal groove is provided at the end of the worm 171, a prismatic hole 313 is provided at the lower end surface of the vertical rod 310, and the upper end of the prismatic column 370 is cooperatively inserted into the prismatic hole 313;

[0035] A prismatic hole 313 is provided on the lower end surface of the vertical rod 310, which is plugged into the upper end of the prismatic column 370 to limit the rotation of the vertical rod 310. At the same time, a worm gear 371 is added to mesh with the worm 171 to adjust the rotation of the prismatic column 370. The rotation angle of the prismatic column 370 can be locked to control the position of the door body 100 when the roller 330 rolls to the lowest point of the supporting slope 191.

[0036] In one embodiment of the utility model, the upper hinge 150 includes an upper mounting seat and a lower mounting seat, and a rotating shaft is rotatably connected between the upper mounting seat and the lower mounting seat. The rotating shaft is coaxially arranged with the vertical pole 310, and the lower support column 170 is coaxially arranged with the vertical pole 310.

[0037] In one embodiment of the utility model, a door frame 500 is further included, the upper mounting seat is fixedly connected to the door frame 500, the lower mounting seat is fixedly connected to the upper end of the frame body 110, and the lower end of the lower support 170 is fixedly connected to the ground or the lower end of the door frame 500.

[0038] In a specific implementation, two door bodies 100 are symmetrically arranged, and the two door bodies 100 are symmetrically arranged, and the two door bodies 100 are arranged opposite to each other in the door frame 500.

[0039] In one embodiment of the utility model, the support member 190 is hollow and has a through groove, which is circular and coaxially arranged with the lower support column 170. The vertical rod 310 slides through the through groove, and a limiting ring 311 is fixed at the lower end of the vertical rod 310. The compression spring 350 is sleeved on the surface of the vertical rod 310, and the lower end of the compression spring 350 is in contact with the limiting ring 311, and the upper end of the compression spring 350 is in contact with the top of the through groove.

[0040] In one embodiment of the utility model, the side of the frame 110 is arranged parallel to the side of the door frame 500, the top of the frame 110 is arranged parallel to the crossbeam of the door frame 500, and a sealing gasket is arranged between the side of the frame 110 and the side of the door frame 500, and the sealing gasket is detachably fixedly connected to the frame 110.

[0041] In a specific implementation, a plane bearing is installed between the upper end surface of the lower support 170 and the lower end surface of the support member 190, or a first ball groove is opened on the lower end surface of the support member 190, and a second ball groove is opened on the upper end surface of the lower support 170, and balls are arranged between the first ball groove and the second ball groove, and a plurality of balls are arranged.

[0042] Working principle: The main partition structure of the door body 100 adopts PVC board 130, which has good resistance to manufacture and heat insulation performance. The frame 110 is designed to be L-shaped for connecting and fixing the PVC board 130, so that the PVC board 130 maintains a vertical position and acts as a door-shaped partition. The PVC board 130 and the frame 110 are fixedly connected by detachable bolts, which is convenient for maintenance and replacement of the PVC board 130, thereby reducing maintenance costs. The frame 110 is rotatably connected to the lower pillar 170 through the upper hinge 150 installed at the upper end and the support member 190 fixed at the lower end, so that the door body 100 can rotate around the pillar 170 as the axis.

[0043] When the door body 100 rotates around the lower support column 170 under the action of external force, the frame body 110 drives the support member 190 to rotate relative to the lower support column 170, so that the support inclined surface 191 set on the upper end surface of the support member 190 rolls with the surface of the roller 330. During the rolling of the roller 330 along the surface of the support inclined surface 191, the overall height is increased. Since the roller 330 is rotatably installed on the upper end of the vertical rod 310, the vertical rod 310 is driven to rise and compress the compression spring 350. When the external force is removed, the vertical rod 310 is pushed under the elastic force of the compression spring 350, so that the vertical rod 310 pulls the roller 330 to press down the support inclined surface 191, driving the support member 190 to rotate and reset around the lower support column 170 as a whole, until the roller 330 rolls to the lowest point of the support inclined surface 191, at which time the door body 100 is in a closed state.

[0044] Forklifts and other vehicles can directly hit the PVC board 130 to push open the door body 100, which is easy to operate and improves traffic efficiency. The PVC board is durable and inexpensive, which extends the service life and reduces maintenance costs, meeting the requirements of low cost and durability. The door automatically resets and closes when moving, meeting the requirements of the cold storage free door for cleanliness, heat preservation, economy and reliability.

[0045] At the same time, the door body 100 does not need to move up during the process of rotating to open the door, and does not need to overcome its own weight, so it is more labor-saving to push the door open.

[0046] The above-mentioned embodiments only express several implementation methods of the utility model. The descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent.

[0047] It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these are all within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A double-opening PVC free door, characterized in that: include A door body (100), the door body (100) comprising a frame (110) and a PVC plate (130), the frame (110) being L-shaped, the PVC plate (130) being fixedly connected to the frame (110); an upper hinge (150) being installed at the upper end of the frame (110), a support member (190) being fixed at the lower end of the frame (110), and a lower support member (170) being rotatably connected to the lower end of the support member (190); A reset mechanism (300), the reset mechanism (300) comprising a vertical pole (310), a roller (330) and a compression spring (350), the roller (330) being rotatably mounted on the upper end of the vertical pole (310), the upper end surface of the support member (190) being provided with a support inclined surface (191), the roller (330) being in rolling contact with the surface of the support inclined surface (191), the vertical pole (310) being slidably connected to the lower support column (170), a circumferential limiting mechanism being connected between the vertical pole (310) and the lower support column (170), and the compression spring (350) being provided between the vertical pole (310) and the lower support column (170).

2. The double-opening PVC free door according to claim 1, characterized in that: The upper hinge (150) comprises an upper mounting seat and a lower mounting seat, wherein a rotating shaft is rotatably connected between the upper mounting seat and the lower mounting seat, wherein the rotating shaft is coaxially arranged with the vertical rod (310), and the lower support column (170) is coaxially arranged with the vertical rod (310).

3. The double-opening PVC free door according to claim 2, characterized in that: It also includes a door frame (500), the upper mounting seat is fixedly connected to the door frame (500), the lower mounting seat is fixedly connected to the upper end of the frame body (110), and the lower end of the lower support (170) is fixedly connected to the ground or the lower end of the door frame (500).

4. The double-opening PVC free door according to claim 3, characterized in that: Two of the door bodies (100) are symmetrically arranged, and the two door bodies (100) are symmetrically arranged, and the two door bodies (100) are arranged opposite to each other in the door frame (500).

5. The double-opening PVC free door according to claim 1, characterized in that: The support member (190) is hollow and has a through groove, which is circular and coaxially arranged with the lower support column (170). The vertical rod (310) slides through the through groove, and a limiting ring (311) is fixed at the lower end of the vertical rod (310). The compression spring (350) is sleeved on the surface of the vertical rod (310), and the lower end of the compression spring (350) contacts the limiting ring (311), and the upper end of the compression spring (350) contacts the top of the through groove.

6. The double-opening PVC free door according to claim 3, characterized in that: The side of the frame (110) is arranged parallel to the side of the door frame (500), the top of the frame (110) is arranged parallel to the crossbeam of the door frame (500), a sealing gasket is arranged between the side of the frame (110) and the side of the door frame (500), and the sealing gasket is detachably fixedly connected to the frame (110).

7. The double-opening PVC free door according to claim 1, characterized in that: A plane bearing is installed between the upper end surface of the lower support (170) and the lower end surface of the support member (190).

8. The double-opening PVC free door according to claim 1, characterized in that: The lower end surface of the support member (190) is provided with a first ball groove, and the upper end surface of the lower support column (170) is provided with a second ball groove. A ball is arranged between the first ball groove and the second ball groove, and a plurality of balls are arranged.

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