Distribution box

Abstract

The invention discloses a distribution box, comprising a box body, which is configured as a box body structure with an installation opening; a box cover, which is configured to be movably connected to the box body and used to open and close the installation opening, and further comprising: a sealing mechanism, which is configured to cooperate with the box cover to seal the installation opening and has a retractable elastic sealing feature; a locking mechanism, which is configured to lock both the box cover and the box body and has a locked state and an unlocked state, and when the box cover closes the installation opening, the elastic sealing feature can drive the locking mechanism to switch between the locked state and the unlocked state. The invention has the following advantages and effects: the invention is easy to operate and has good sealing performance, thereby reducing the cumbersomeness of operation and improving the practical performance of the product.

Description

Technical Field

[0001] The invention relates to the electrical field, and in particular to a distribution box. Background Art

[0002] The distribution box is an electrical equipment with small size, easy installation, special technical performance, fixed position, unique configuration function, no site restrictions, common application, stable and reliable operation, high space utilization, small footprint and environmental protection. The massive parameters on the distribution box data generally constitute the low-voltage forest according to the electrical wiring, requiring the switchgear, measuring instruments, protective electrical appliances and auxiliary equipment to be assembled in a closed or semi-closed metal cabinet or on a screen to form a low-voltage distribution box.

[0003] The distribution box has high requirements for its closing strength and sealing performance. The existing distribution box includes a box body, a box cover hinged to the box body, a sealing ring arranged on the box body and cooperating with the box cover to form a seal, and multiple sets of locking bolts and locking nuts connecting the box body and the box cover. The opening and closing operation of the box cover is achieved by loosening and tightening the locking bolts and locking nuts, and this setting structure causes the sealing force of the sealing ring to completely depend on the locking force of the locking bolts and locking nuts. In order to improve the sealing force of the sealing ring, it can only be achieved by further tightening the bolts and nuts. This setting structure results in that when the distribution box requires a larger sealing force, the required opening and closing torque is larger, which makes its operation time-consuming and laborious; and the structure of multiple sets of locking bolts and locking nuts also greatly increases the workload of opening and closing the distribution box, resulting in cumbersome operation. Summary of the invention

[0004] The purpose of the present invention is to provide a distribution box which is easy to operate and has good sealing performance, thereby reducing the complexity of operation and improving the practical performance of the product.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a distribution box, including a box body, which is configured as a box structure with an installation opening; a box cover, which is configured to be movably connected to the box body and used to open and close the installation opening, and also includes: a sealing mechanism, which is configured to cooperate with the box cover to seal the installation opening and has a retractable elastic sealing feature; a locking mechanism, which is configured to lock both the box cover and the box body and has a locked state and an unlocked state. When the box cover closes the installation opening, the elastic sealing feature can drive the locking mechanism to switch between the locked state and the unlocked state.

[0006] By adopting the above technical solution, the box cover is rotated to be set at the installation port of the box body, and then the sealing mechanism is controlled to expand the elastic sealing feature to drive the locking mechanism to switch from the unlocked state to the locked state, so as to form a lock between the box cover and the box body, and the expanded elastic sealing feature also realizes the sealing of the installation port. In this way, the locking operation and the sealing operation of the distribution box are completed simultaneously, and the operation is simplified while having better sealing performance, thereby reducing the cumbersomeness of the operation and improving the practical performance of the product. The locking state of the locking mechanism can be released by controlling the contraction of the elastic sealing feature to realize the opening of the box cover. By realizing the linkage between the sealing mechanism and the locking mechanism, the distribution box can complete the locking operation of the distribution box while performing the sealing operation, so as to realize that one mechanism has multiple functions, thereby realizing the convenience of control operation and achieving structural optimization.

[0007] It is further configured as follows: the elastic sealing feature has an expanded sealing state and a contracted non-sealing state. When the elastic sealing feature switches from the non-sealing state to the sealing state, the locking mechanism is driven to switch from the non-locking state to the locking state; when the elastic sealing feature switches from the sealing state to the non-sealing state, the locking mechanism is switched from the locking state to the non-locking state.

[0008] By adopting the above technical solution, this setting structure enables the sealing mechanism to be in a sealed state when the box cover and the box body are in a locked state, thereby ensuring the closing strength and sealing performance of the distribution box. When the box cover and the box body are in an unlocked state, the sealing mechanism is in an unsealed state, thereby achieving normal separation between the box cover and the box body without causing structural interference, thereby ensuring the feasibility of the structure.

[0009] It is further configured as follows: the sealing mechanism includes a sealing groove arranged on one side of the box body to meet the box cover and surrounding the installation port, a control member to control the extension and retraction of the elastic sealing feature, and a guide member to guide the expansion movement of the elastic sealing feature. The elastic sealing feature is a ring-shaped shape arranged in the sealing groove and surrounding the installation port. The guide member guides the movement of the elastic sealing feature in sequence, including a driving path for driving the locking mechanism to act and a sealing path for sealing the installation port.

[0010] By adopting the above technical solution, the control component controls the elastic sealing feature located in the sealing groove to expand and retract and move along the driving path and the sealing path in sequence. Through the driving path, the elastic sealing feature first drives the locking mechanism to lock and then realizes the sealing of the installation port through the sealing path; when the distribution box is performing a sealing operation, the locking mechanism that constitutes the lock can limit the opposite movement of the box cover and the box body, thereby completing a stable and effective seal between the box cover and the box body, and also making the sealing operation of the distribution box more convenient.

[0011] It is further configured as follows: the two ends of the elastic sealing feature along the driving path are respectively a fixed end and a movable end, the fixed end is fixedly connected to the sealing groove, the locking mechanism is arranged on the side of the movable end facing away from the fixed end, the sealing path is located on one side of the driving path, and the sealing path connects the driving path and the rotation path of the box cover.

[0012] By adopting the above technical solution, the elastic sealing feature expands and drives the movable end to move along the driving path toward the locking mechanism, and the locking mechanism is triggered by the movable end abutting against the locking mechanism. When the movable end abuts against the locking mechanism, it receives the reverse abutting force from the locking mechanism, and then guides the elastic sealing feature to move toward the sealing path to cooperate with the box cover to form a seal. In this way, the driving operation and the sealing operation are carried out in sequence and in an orderly manner, and a more effective driving effect can be formed on the locking mechanism.

[0013] It is further configured as follows: an expansion and telescopic cavity is formed inside the elastic sealing feature, the control member is connected to the expansion and telescopic cavity and controls its on and off, the guide member is a guide plate arranged on the side of the driving path relative to the bottom of the sealing groove, and the guide plate extends to be close to the sealing path.

[0014] By adopting the above technical solution, the expansion and telescopic cavity cooperates with the elasticity of the elastic sealing feature to give the elastic sealing feature an expansion and telescopic function, thereby achieving a driving and effective sealing effect. The setting of the guide plate can better guide the expansion and telescopic feature to move toward the locking mechanism, thereby achieving effective driving of the locking mechanism.

[0015] The further configuration is as follows: the locking mechanism includes a plurality of lock grooves arranged on a side of the box body that meets the box cover, a plurality of lock blocks fixedly arranged on a side of the box cover that meets the lock groove and corresponding to the lock grooves one by one, a sliding hole connecting each lock groove and a sealing groove, a lock pin slidably arranged in each sliding hole and reciprocating between the lock groove and the sealing groove, a lock hole opened in the lock block and having a movement path intersecting with the movement of the lock pin and for the lock pin to be inserted, and a return spring driving the lock pin to move away from the lock groove, and the sliding hole is located on the side of the movable end opposite to the fixed end.

[0016] By adopting the above technical solution, the box cover is arranged on the installation opening of the box body so that the locking block is inserted into the locking groove. When the elastic sealing feature expands and moves, the locking pin is driven to squeeze the return spring and insert it into the locking hole, thereby constituting the fixing of the locking block in the locking groove to limit the separation of the box cover and the box body, thereby achieving the locking purpose.

[0017] It is further configured that: a bearing plate is provided at one end of the locking pin facing the movable end.

[0018] By adopting the above technical solution, the setting of the bearing plate increases the contact surface with the elastic sealing feature, protects the elastic material of the elastic sealing feature, and enables the elastic sealing feature to drive the locking pin more effectively, thereby improving the reliability of the structure.

[0019] It is further configured that: when the movable end abuts against the locking mechanism, the elastic sealing feature forms a sealing protrusion protruding outward at a position corresponding to the sealing path.

[0020] By adopting the above technical solution, the setting of the sealing protrusion enables the elastic sealing feature to move more effectively toward the sealing path when elastic deformation due to expansion occurs, thereby enhancing the sealing force of the elastic sealing feature and achieving a better sealing effect.

[0021] It is further configured that: a limit safety buckle is rotatably provided on one side of the box body, and the limit safety buckle has a limit safety state and a non-limit safety state. When the limit safety buckle is in the limit safety state, the box cover is limited to cover the box body.

[0022] By adopting the above technical solution, the limit safety buckle is set to pre-limit the box cover, so that when the distribution box is locked and sealed, there is no need to manually apply the tight force of the box cover on the box body, making the operation more convenient. In addition, when the distribution box explodes, the limit safety buckle can also play an additional safety guarantee role, thereby improving the safety performance of the distribution box.

[0023] It is further configured as follows: a safety plug is slidably provided on one side of the box body, and the safety plug has a tendency to move toward one side of the limit safety buckle and is used to limit the limit safety buckle to a limit safety state.

[0024] By adopting the above technical solution, the safety plug moves toward the limit safety buckle under the action of gravity and limits the limit safety buckle, so as to avoid the limit safety buckle being accidentally triggered and changing the state of the limit safety buckle.

[0025] In summary, the present invention has the following beneficial effects: the present invention is easy to operate and has good sealing performance, thereby reducing the complexity of operation and improving the practical performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A perspective view of an embodiment;

[0027] Figure 2 It is a structural schematic diagram of an embodiment;

[0028] Figure 3 It is a schematic diagram of the structure after the embodiment is turned on;

[0029] Figure 4is a cross-sectional view of an embodiment;

[0030] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0031] Figure 6 It is a schematic diagram of the local structure of an embodiment.

[0032] In the figure: 1. installation opening; 2. box body; 3. box cover; 4. sealing mechanism; 41. sealing groove; 42. elastic sealing feature; 43. control member; 46. guide member; 44. fixed end; 45. movable end; 5. locking mechanism; 51. locking groove; 52. locking block; 53. sliding hole; 54. locking pin; 55. locking hole; 56. reset spring; 6. expansion and telescopic chamber; 7. bearing plate; 8. sealing protrusion; 9. limit safety buckle; 10. safety plug. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] refer to Figures 1 to 6 A distribution box includes a box body 2, which is configured to be a box structure with an installation opening 1; a box cover 3, which is configured to be hinged to the box body 2 and used to open and close the installation opening 1, and also includes: a sealing mechanism 4, which is configured to cooperate with the box cover 3 to seal the installation opening 1 and has a retractable elastic sealing feature 42; a locking mechanism 5, which is configured to constitute a lock between the box cover 3 and the box body 2 and has a locked state and an unlocked state. When the box cover 3 closes the installation opening 1, the elastic sealing feature 42 can drive the locking mechanism 5 to switch between the locked state and the unlocked state.

[0035] The elastic sealing feature 42 has an expanded sealing state and a contracted non-sealing state. When the elastic sealing feature 42 switches from the non-sealing state to the sealing state, it drives the locking mechanism 5 to switch from the non-locking state to the locking state; when the elastic sealing feature 42 switches from the sealing state to the non-sealing state, it drives the locking mechanism 5 to switch from the locking state to the non-locking state; the elastic sealing feature 42 is a sealing ring.

[0036] The sealing mechanism 4 includes a sealing groove 41 which is opened on the side of the box body 2 that meets the box cover 3 and is arranged around the installation opening 1, a control member 43 that controls the extension and contraction of the elastic sealing feature 42, and a guide member 46 that guides the expansion movement of the elastic sealing feature 42. The elastic sealing feature 42 is annular and is arranged in the sealing groove 41 and surrounds the installation opening 1. The guide member 46 guides the movement of the elastic sealing feature 42 to sequentially include a driving path for driving the locking mechanism 5 to act and a sealing path for sealing the installation opening 1.

[0037] The two ends of the elastic sealing feature 42 along the driving path are a fixed end 44 and a movable end 45, respectively. The fixed end 44 is fixedly connected to the sealing groove 41, and the locking mechanism 5 is arranged on the side of the movable end 45 facing away from the fixed end 44. The sealing path is located on one side of the driving path and the sealing path connects the driving path and the rotation path of the box cover 3. An expansion and telescopic cavity 6 is formed inside the elastic sealing feature 42, and the control member 43 is a valve core that connects the expansion and telescopic cavity 6 and controls its opening and closing. The guide member 46 is a guide plate arranged on the side of the driving path relative to the bottom of the sealing groove 41, and the guide plate is integrally arranged on the box body 2 and extends to be close to the sealing path.

[0038] The locking mechanism 5 includes a plurality of locking grooves 51 provided on the side of the box body 2 that meets the box cover 3, a plurality of locking blocks 52 fixedly provided on the side of the box cover 3 that meets the locking grooves 51 and corresponding to the locking grooves 51, a sliding hole 53 connecting each locking groove 51 with the sealing groove 41, a locking pin 54 slidably provided in each sliding hole 53 and reciprocating between the locking groove 51 and the sealing groove 41, a locking hole 55 provided in the locking block 52 and having a movement path intersecting with the movement of the locking pin 54 and for the locking pin 54 to be inserted, and a return spring 56 driving the locking pin 54 to move away from the locking groove 51. The sliding hole 53 is located on the side of the movable end 45 that is away from the fixed end 44, and one end of the return spring 56 is fixedly connected to the bearing plate 7, and the other end is fixedly connected to the box body 2.

[0039] The end of the lock pin 54 facing the movable end 45 is integrally provided with a bearing plate 7. When the movable end 45 abuts against the bearing plate 7, the elastic sealing feature 42 forms a sealing protrusion 8 protruding outward at the position corresponding to the sealing path. A limited safety buckle 9 is hinged on one side of the box body 2. The limited safety buckle 9 has a limited safety state and a non-limited safety state. When the limited safety buckle 9 is in the limited safety state, the limited box cover 3 covers the box body 2. A safety plug 10 is vertically slidably provided above the limited safety buckle 9 on one side of the box body 2. The safety plug 10 has a tendency to move toward one side of the limited safety buckle 9 and is used to limit the limited safety buckle 9 to be in the limited safety state.

[0040] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A distribution box, comprising a box body (2) configured as a box structure having a mounting opening (1); a box cover (3) configured to be movably connected to the box body (2) and used to open and close the mounting opening (1), characterized in that: Also includes: The sealing mechanism (4) is configured to cooperate with the box cover (3) to seal the installation opening (1) and has a retractable elastic sealing feature (42); the locking mechanism (5) is configured to lock the box cover (3) and the box body (2) and has a locked state and an unlocked state. When the box cover (3) closes the installation opening (1), the elastic sealing feature (42) can drive the locking mechanism (5) to switch between the locked state and the unlocked state. The sealing mechanism (4) includes a box body (2) that is arranged to receive the box cover (3) on one side and surround the box body (2). A sealing groove (41) provided at the installation opening (1), a control member (43) for controlling the extension and retraction of an elastic sealing feature (42), and a guide member (46) for guiding the expansion movement of the elastic sealing feature (42), wherein the elastic sealing feature (42) is annular and provided at the sealing groove (41) and surrounds the installation opening (1), and the guide member (46) guides the movement of the elastic sealing feature (42) in a sequence including a driving path for driving a locking mechanism (5) to move and a sealing path for sealing the installation opening (1), wherein the elastic sealing feature (42) moves along the driving path. The two ends of the path are respectively a fixed end (44) and a movable end (45), the fixed end (44) is fixedly connected to the sealing groove (41), the locking mechanism (5) is arranged on the side of the movable end (45) facing away from the fixed end (44), the sealing path is located on the side of the driving path and the sealing path connects the driving path and the rotation path of the box cover (3), the locking mechanism (5) comprises a plurality of locking grooves (51) arranged on a side of the box body (2) that meets the box cover (3), and a plurality of locking grooves (51) fixedly arranged on a side of the box cover (3) that meets the locking grooves (51) and is aligned with the locking grooves (51) one by one. A plurality of corresponding locking blocks (52), a sliding hole (53) connecting each locking groove (51) and the sealing groove (41), a locking pin (54) slidably arranged in each sliding hole (53) and reciprocating between the locking groove (51) and the sealing groove (41), a locking hole (55) opened in the locking block (52) and having a movement path intersecting with the movement of the locking pin (54) and for the locking pin (54) to be inserted, and a return spring (56) driving the locking pin (54) to move away from the locking groove (51), wherein the sliding hole (53) is located on the side of the movable end (45) opposite to the fixed end (44).

2. The distribution box according to claim 1, characterized in that: The elastic sealing feature (42) has an expanded sealing state and a contracted non-sealing state. When the elastic sealing feature (42) switches from the non-sealing state to the sealing state, it drives the locking mechanism (5) to switch from the non-locking state to the locking state; when the elastic sealing feature (42) switches from the sealing state to the non-sealing state, it drives the locking mechanism (5) to switch from the locking state to the non-locking state.

3. The distribution box according to claim 1, characterized in that: An expansion and telescopic chamber (6) is formed inside the elastic sealing feature (42), the control member (43) is connected to the expansion and telescopic chamber (6) and controls its on and off, and the guide member (46) is a guide plate arranged on the side of the driving path relative to the bottom of the sealing groove (41), and the guide plate extends to be close to the sealing path.

4. The distribution box according to claim 1, characterized in that: A bearing plate (7) is provided at one end of the locking pin (54) facing the movable end (45).

5. The distribution box according to claim 3, characterized in that: When the movable end (45) abuts against the locking mechanism (5), the elastic sealing feature (42) forms a sealing protrusion (8) protruding outward at a position corresponding to the sealing path.

6. The distribution box according to claim 1, characterized in that: A limit safety buckle (9) is rotatably provided on one side of the box body (2), and the limit safety buckle (9) has a limit safety state and a non-limit safety state. When the limit safety buckle (9) is in the limit safety state, the box cover (3) is limited to cover the box body (2).

7. The distribution box according to claim 6, characterized in that: A safety plug (10) is slidably provided on one side of the box body (2); the safety plug (10) has a tendency to move toward one side of the position-limiting safety buckle (9) and is used to limit the position-limiting safety buckle (9) to a position-limiting safety state.

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