An opening-adjustable door body and a refrigeration equipment

Abstract

The present application relates to refrigeration equipment component technical field, provide a kind of opening adjustable door body, including door body installation, upper and lower opening and closing components;Lower opening and closing component includes lower hinge plate and lower door shaft;Lower door shaft is movably sleeved with first reset block and fixedly connected with second reset block;Two reset blocks have inclined surface;The rotation of door body, the thrust between two inclined surfaces is generated, so that door body moves along the axial direction;Upper opening and closing component includes upper hinge plate and upper door shaft;Upper door shaft is provided with adjusting rod;Adjusting rod can be adjusted to the depth of upper shaft hole along the axial direction;When door body moves, upper shaft hole is contacted with adjusting rod, and the maximum opening angle is limited. Therefore, the present application controls the maximum opening angle of door body by adjusting the length of adjusting rod and the abutment between the end surface of adjusting rod and the bottom surface of upper shaft hole. The structure is simple, easy to operate, and the maximum opening angle can be adjusted in real time according to the actual needs of the site. The present application also provides a refrigeration equipment with the door body.

Description

Technical Field

[0001] This invention belongs to the technical field of refrigeration equipment components, and particularly relates to an adjustable door and refrigeration equipment. Background Technology

[0002] The door is a key component of refrigeration equipment, and its rotation is typically achieved through hinges. Common large-capacity, vertical-door refrigeration equipment, such as French door refrigerators and cold storage units, often requires the simultaneous loading and unloading of goods. During this process, the door must maintain a certain opening angle to facilitate the movement of goods. During use, the maximum opening angle of the door needs to be adjusted according to the actual site conditions to avoid interference with other objects and to prevent the door from opening freely to its limit, which could damage the hinge components.

[0003] Chinese patent 202222902642.3 discloses a hinge structure that adjusts the opening angle by storing energy through a torsional spring. However, after storing energy, the spring is in an unstable equilibrium state, resulting in inaccurate adjustment of the maximum opening angle and an inability to precisely maintain the door at the maximum opening angle.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0005] To address the aforementioned shortcomings, this invention primarily provides an adjustable door body, solving the technical problem of precisely adjusting the maximum opening angle of the door body.

[0006] To address the above problems, the present invention provides an adjustable door body, comprising a door body; an upper opening and closing component and a lower opening and closing component are installed on the door body.

[0007] The lower opening and closing assembly includes a lower hinge plate and a lower door pivot fixed on the lower hinge plate; the interior of the door body is provided with a lower pivot hole for movably engaging with the lower door pivot; the lower door pivot is also movably sleeved with a first reset block fixed on the door body; a second reset block is also fixed on the lower door pivot;

[0008] Both the first reset block and the second reset block have inclined surfaces for mutual engagement; the two inclined surfaces are configured such that as the door body rotates, the inclined surface of the first reset block rotates relative to the inclined surface of the second reset block, and the inclined surface of the second reset block generates a thrust on the inclined surface of the first reset block, thereby pushing the door body to move axially.

[0009] The upper opening and closing assembly includes an upper hinge plate, which is fixedly connected to an upper door hinge; the interior of the door body is provided with an upper shaft hole for movably engaging with the upper door hinge; the upper door hinge is a hollow structure, and an adjusting rod passes through the hollow structure;

[0010] The adjusting rod is configured to adjust the depth of its insertion into the upper shaft hole along the axial direction of the upper door shaft; and when the door body moves axially until the bottom surface of the upper shaft hole contacts the end face of the adjusting rod, the maximum opening angle of the door body is limited.

[0011] According to the adjustable door body of the present invention, the adjusting rod is threaded through the hollow structure of the upper door shaft; its insertion length in the upper shaft hole is adjusted by turning the adjusting rod.

[0012] According to the adjustable door body of the present invention, the adjusting rod extends through one end of the top of the upper door shaft and is screwed with a fastening nut.

[0013] According to the adjustable door body of the present invention, the end of the adjusting rod is provided with a stop head, and the bottom surface of the upper shaft hole is provided with a stop hole that is inserted and matched with the stop head.

[0014] According to the adjustable door body of the present invention, the cross-sectional shape of the stop head is an inverted trapezoid, and a friction layer is provided on the outer wall of the stop head.

[0015] According to the adjustable door body of the present invention, a return spring is sleeved on the portion of the adjusting rod that extends into the upper shaft hole.

[0016] According to the adjustable door body of the present invention, the upper opening and closing assembly further includes an upper bushing with an upper shaft hole inside; the lower opening and closing assembly further includes a lower bushing with a lower shaft hole inside; both the upper bushing and the lower bushing are embedded in the door body.

[0017] According to the adjustable door body of the present invention, the upper opening and closing assembly is installed at the top of the door body, and the lower opening and closing assembly is installed at the bottom of the door body.

[0018] A refrigeration device having the aforementioned adjustable-opening door.

[0019] According to the refrigeration equipment of the present invention, the refrigeration equipment is a refrigerator or a cold storage.

[0020] In summary, the adjustable door of the present invention controls the maximum opening angle of the door by adjusting the extension of the adjusting rod and the contact between the end face of the adjusting rod and the bottom surface of the upper shaft hole. It has a simple structure, is easy to operate, and can adjust the maximum opening angle in real time according to actual needs on site, making it practical and convenient. The present invention also provides a refrigeration device incorporating this door. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 yes Figure 1Schematic diagram of partial cross-sectional view of the structure along line A in the middle;

[0023] Figure 3 yes Figure 1 Schematic diagram of partial cross-sectional view of the structure along line B in the middle;

[0024] Figure 4 yes Figure 2 The main view;

[0025] Figure 5 Figure 4 Schematic diagram of the structure of region C in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the lower opening and closing component of the present invention;

[0027] Figure 7 This is an exploded structural diagram of the lower opening and closing component of the present invention;

[0028] In the diagram: 1-Upper opening and closing assembly, 11-Upper hinge plate, 111-Bending part; 12-Upper door hinge, 13-Upper bushing, 131-Upper shaft hole; 14-Adjusting rod, 141-Stop plug, 142-Friction layer; 15-Fastening nut, 16-Reset spring; 2-Door body, 3-Lower opening and closing assembly, 31-Lower bushing, 32-Reinforcing plate, 33-Support foot, 34-Lower door hinge, 35-First reset block, 36-Second reset block, 37-Lower hinge plate, 38-Lower shaft hole. Detailed Implementation

[0029] See Figure 1 The present invention provides an adjustable door body, including a door body 2; an upper opening and closing component 1 and a lower opening and closing component 3 are installed on the door body 2; based on the consideration of optimizing the structure, as one embodiment, the upper opening and closing component 1 of the present invention is installed on the top of the door body 2, and the lower opening and closing component 3 is installed on the bottom of the door body 2.

[0030] See Figure 3 The lower opening and closing assembly 3 includes a lower hinge plate 37 and a lower door shaft 34 fixed on the lower hinge plate 37; the interior of the door body 2 is provided with a lower shaft hole 38 for movably engaging with the lower door shaft 34.

[0031] See also Figure 6 and Figure 7 The lower door hinge 34 is also movably sleeved with a first reset block 35 fixed on the door body 2; a second reset block 36 is also fixed on the lower door hinge 34.

[0032] Both the first reset block 35 and the second reset block 36 have inclined surfaces for mutual engagement; the two inclined surfaces are configured such that as the door body 2 rotates, the inclined surface of the first reset block 35 rotates relative to the inclined surface of the second reset block 36, and the inclined surface of the second reset block 36 exerts a thrust on the inclined surface of the first reset block 35, thereby pushing the door body 2 to move axially.

[0033] See Figure 2 The upper opening and closing component 1 includes an upper hinge plate 11, which is fixedly connected to an upper door shaft 12; the interior of the door body 2 is provided with an upper shaft hole 131 for movably engaging with the upper door shaft 12; the upper door shaft 12 is a hollow structure, and an adjusting rod 14 passes through the hollow structure.

[0034] The adjusting rod 14 is configured to move axially along the upper door hinge 12 to adjust its depth into the upper hinge hole 131, and to determine the maximum opening angle of the door body 2 when the bottom surface of the upper hinge hole 131 contacts the end face of the adjusting rod 14 as the door body 2 moves axially.

[0035] In this invention, the central axes of the upper door hinge 12 and the lower door hinge 34 coincide in space. Together, they determine the rotation axis of the door body 2.

[0036] Those skilled in the art can ensure that when the door is fully closed, the two inclined surfaces of the first reset block 35 and the second reset block 36 are in a mutually engaging state; subsequently, as the door opens, the door body 2 moves upward along the axial direction until the end face of the adjusting rod 14 contacts the bottom surface of the upper shaft hole 131, thereby limiting the maximum opening angle of the door. The maximum opening angle of the door can be adjusted by changing the insertion depth of the adjusting rod 14 according to actual needs. When the door is closed, the door body 2 moves downward along the axial direction, and the adjusting rod 14 disengages from the upper shaft hole 131, allowing for a smooth closing action.

[0037] The lower opening and closing component 3 of the present invention restores the door to its initial state by its own weight when the door is closed, that is, the two inclined surfaces of the first reset block 35 and the second reset block 36 return to their initial fitting state, ensuring that the door can be completely closed every time and avoiding leaving gaps.

[0038] This invention controls the maximum opening angle of the door by adjusting the insertion depth of the adjusting rod 14 and utilizing the contact between the end face of the adjusting rod 14 and the bottom surface of the upper shaft hole 131. It features a simple structure, convenient operation, and allows for real-time adjustment of the maximum opening angle according to actual site requirements, making it practical and convenient.

[0039] As one embodiment, the adjusting rod 14 is threaded through the hollow structure of the upper door shaft 12; by turning the adjusting rod 14, its insertion length in the upper shaft hole 131 can be precisely adjusted, thereby adjusting the maximum opening angle of the door.

[0040] This embodiment utilizes the self-locking function of the threaded connection to stabilize the adjustment amount, thereby enabling precise adjustment of the maximum opening angle of the door. The adjustment operation is completed from the outside of the door, making it simple to operate and allowing for real-time adjustment of the maximum opening angle according to actual site needs, making it practical and convenient.

[0041] Furthermore, the end of the adjusting rod 14 that protrudes from the top of the upper door shaft 12 is screwed with a fastening nut 15; after adjustment, tighten the fastening nut 15 to prevent the adjusting rod 14 from rotating on its own due to external force, so that the adjustment result is stable and reliable.

[0042] Preferably, the adjusting rod 14 of the present invention is an adjusting bolt, which is made of readily available materials, has low cost, and is convenient to adjust.

[0043] See Figure 5 As one embodiment, the end of the adjusting rod 14 is provided with a stop head 141, and the bottom surface of the upper shaft hole 131 is provided with a stop hole that is inserted and matched with the stop head 141; when the adjusting rod 14 contacts the upper shaft hole 131, the contact area between the two is increased, the friction is improved, and thus the stability of the door at the maximum opening angle is improved.

[0044] Furthermore, the cross-sectional shape of the stop-blocking head 141 is an inverted trapezoid to reduce the resistance to separation between the two; more preferably, a friction layer 142 is provided on the outer wall of the stop-blocking head 141; the friction layer 142 is preferably made of rubber or silicone with a high coefficient of friction. When the stop-blocking head 141 enters the stop-blocking hole, the friction layer 142 is compressed and deformed, providing friction.

[0045] Combination Figure 4 In one embodiment, the portion of the adjusting rod 14 that extends into the upper shaft hole 131 is fitted with a return spring 16; when the door is opened, the return spring 16 is compressed and stores energy; when the door is closed from the maximum open position, the return spring 16 provides axial thrust, causing the adjusting rod 14 to disengage from the upper shaft hole 131, thus preventing the door from jamming.

[0046] In one embodiment, the upper opening and closing assembly 1 further includes an upper bushing 13, in which the upper bushing 13 has an upper shaft hole 131; the lower opening and closing assembly 3 further includes a lower bushing 31, in which the lower bushing 31 has a lower shaft hole 38; both the upper bushing 13 and the lower bushing 31 are embedded in the door body 2.

[0047] The upper bushing 13 and the lower bushing 31 of the present invention are preferably made of high-strength metal materials, which improves the fit strength between the door hinge and the shaft hole.

[0048] Combination Figure 7 As one embodiment of the lower opening and closing component 3, the lower hinge plate 37 is also screwed with a support foot 33. By screwing the support foot 33, it is brought into contact with the ground to share the weight of the door and avoid excessive load on the door hinge.

[0049] Furthermore, the first reset block 35 is fixed to the reinforcing plate 32; the reinforcing plate 32 is connected to the door body or lower bushing 31 and other components, which increases the stability of the fixed connection.

[0050] As one embodiment of the upper hinge plate 11, the upper hinge plate 11 of the present invention has two straight sections, which are connected by a bending section 111; this ensures that the upper hinge plate 11 has a sufficient distance from the top of the door body 2, which is greater than the distance between the end of the adjusting rod 14 and the bottom surface of the upper shaft hole 131. This avoids the door body 2 from colliding with the upper hinge plate 11 before the door reaches its maximum opening angle.

[0051] The present invention also provides a refrigeration device having the aforementioned door. Preferably, the refrigeration device is a product with a vertical door structure, such as a side-by-side refrigerator or cold storage.

[0052] The refrigeration equipment of this invention allows for adjustment of the maximum opening angle of the door when it is open, and maintains this angle to prevent it from closing automatically. This facilitates the centralized entry and exit of goods and avoids the dangerous situation of the door closing automatically and trapping workers inside the warehouse.

[0053] In summary, this invention provides an adjustable door, where the maximum opening angle is controlled by adjusting the extension of a rod and the contact between the rod's end face and the bottom surface of the upper shaft hole. It features a simple structure, convenient operation, and allows for real-time adjustment of the maximum opening angle according to actual site requirements, making it practical and convenient. This invention also provides a refrigeration device incorporating this door.

[0054] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A door with adjustable opening, characterized in that, Includes a door body; the door body is equipped with an upper opening and closing assembly and a lower opening and closing assembly; The lower opening and closing assembly includes a lower hinge plate and a lower door pivot fixed on the lower hinge plate; the interior of the door body is provided with a lower pivot hole for movably engaging with the lower door pivot; the lower door pivot is also movably sleeved with a first reset block fixed on the door body; a second reset block is also fixed on the lower door pivot; Both the first reset block and the second reset block have inclined surfaces for mutual engagement; the two inclined surfaces are configured such that as the door body rotates, the inclined surface of the first reset block rotates relative to the inclined surface of the second reset block, and the inclined surface of the second reset block generates a thrust on the inclined surface of the first reset block, thereby pushing the door body to move axially. The upper opening and closing assembly includes an upper hinge plate, which is fixedly connected to an upper door hinge; the interior of the door body is provided with an upper shaft hole for movably engaging with the upper door hinge; the upper door hinge is a hollow structure, and an adjusting rod passes through the hollow structure; The adjusting rod is configured to: move axially along the upper door hinge to adjust its depth into the upper hinge hole; and limit the maximum opening angle of the door body when the bottom surface of the upper hinge hole contacts the end face of the adjusting rod.

2. The adjustable door as described in claim 1, characterized in that, The adjusting rod is threaded through the hollow structure of the upper door shaft; its insertion length in the upper shaft hole is adjusted by turning the adjusting rod.

3. The adjustable door as described in claim 2, characterized in that, The adjusting rod extends through one end of the top of the upper door hinge and is screwed with a fastening nut.

4. The adjustable door as described in claim 2, characterized in that, The end of the adjusting rod is provided with a stop head, and the bottom surface of the upper shaft hole is provided with a stop hole that is inserted and fitted with the stop head.

5. The adjustable door as described in claim 4, characterized in that, The stopper head has an inverted trapezoidal cross-sectional shape, and a friction layer is provided on the outer wall of the stopper head.

6. The adjustable door as described in claim 1, characterized in that, A return spring is fitted onto the portion of the adjusting rod that extends into the upper shaft hole.

7. The adjustable door as described in claim 1, characterized in that, The upper opening and closing assembly further includes an upper bushing with an upper shaft hole inside; the lower opening and closing assembly further includes a lower bushing with a lower shaft hole inside; both the upper bushing and the lower bushing are embedded in the door body.

8. The adjustable door as described in claim 1, characterized in that, The upper opening and closing assembly is installed at the top of the door body, and the lower opening and closing assembly is installed at the bottom of the door body.

9. A refrigeration device, characterized in that, It has an adjustable door body as described in any one of claims 1 to 8.

10. The refrigeration equipment as described in claim 9, characterized in that, The refrigeration equipment is a refrigerator or cold storage.

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