Ring main unit with durable hoisting structure
By designing a lifting assembly with a boom and springs on the ring main unit, the problems of easy deformation of the lifting ring and hook detachment were solved, achieving a more stable and safer lifting process.
Patent Information
- Application Number
- CN202423151630.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The existing ring main unit's lifting rings are prone to deformation due to impact from falling objects or the hook coming off, leading to unstable lifting and posing a safety hazard.
A lifting assembly consisting of a boom and springs was designed. The boom can move linearly within the anti-collision groove, the springs provide cushioning, and the hooks are clamped between the boom and the bottom of the anti-collision groove to enhance connection stability.
It improves the stability and safety of the hoisting structure, prevents the hook from coming off, reduces damage to the boom, and ensures the balance and safety of the hoisting process.
Smart Images
Figure CN223583569U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ring main unit technical field more specifically relates to a hoisting structure durable ring main unit. BACKGROUND
[0002] Ring main unit is a kind of electrical equipment, its core part is in line with switch and fuse, with simple structure, small size, low price, can improve power supply parameter and performance and power supply safety and other advantages.For the convenience of ring main unit movement, hoisting ring is usually set on the top of ring main unit, and then the ring main unit is hoisted by the lifting hook of crane to move, but there are defects, one, hoisting ring is protruding relative to the top surface of ring main unit and hoisting ring structure is simple, if being impacted by falling object, hoisting ring is prone to deformation, causes the situation that lifting hook cannot pass through hoisting ring and carry;Second, the inner hole diameter of existing hoisting ring is large, in the case where lifting rope is not straightened, lifting hook is prone to be taken out from hoisting ring, affects hoisting effect, and even there is security risk. SUMMARY
[0003] In view of the deficiencies in the prior art, the utility model aims at providing a ring main unit with stable structure and anti-unhooking.
[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of ring main unit with hoisting structure durability, including cabinet and multiple hoisting components located at the top edge of cabinet, the top edge of cabinet is provided with the anti-collision groove for accommodating multiple hoisting components respectively, the hoisting component includes the straight line that can be moved along the height direction of cabinet hoisting pole and two springs that push down hoisting pole, the top of cabinet is provided with spring cavity for accommodating spring, the two ends of hoisting pole are inserted into the two slot walls of corresponding anti-collision groove respectively and are located below two springs respectively, hoisting hook can be clamped between hoisting pole and anti-collision groove bottom by spring pushing down hoisting pole.
[0005] As a further improvement of the utility model, the hoisting pole includes two plug-in parts inserted into the slot wall of anti-collision groove respectively and a V-shaped tension part, the two ends of the tension part are connected with one end of two plug-in parts respectively.
[0006] As a further improvement of the utility model, the outer wall of two plug-in parts is provided with guide rod that can be inserted into spring cavity and move straightly along spring cavity.
[0007] As a further improvement of the utility model, the bottom of multiple anti-collision grooves is inclined downward relative to horizontal plane, and the bottom of anti-collision groove is located at the minimum height on one end of the side wall of cabinet top.
[0008] The utility model discloses beneficial effect: through spring downward push suspender makes that the hook can be clamped between suspender and the bottom of anti -collision groove, and the design of suspender in anti -collision groove can reduce the probability that the outside falling object produces the impact to suspender compared with the design of hoisting assembly relative to the top of cabinet, improve the structural stability of suspender, indirectly improve the safety of hoisting time, through the design of suspender and the bottom of anti -collision groove common to the hook clamping can make up the defect that the hook is easy to come out hoisting assembly of prior art, effectively improve the connection stability between hook and suspender, indirectly improve the safety of hoisting time, and the design of spring can provide the buffer effect for suspender, avoid the situation that the hook produces greater instantaneous tension to suspender when the lifting rope is suddenly straight, reduce the degree of suspender damage. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the perspective drawing of the utility model;
[0010] Figure 2 It is Figure 1 The enlarged view of A in the middle;
[0011] Figure 3 It is Figure 1 The enlarged view of B in the middle.
[0012] Reference signs: 1, cabinet; 2, hoisting assembly; 3, anti -collision groove; 4, suspender; 41, plug -in part; 42, tension part; 43, guide rod; 5, spring; 6, spring cavity. DETAILED DESCRIPTION
[0013] The utility model is further explained in detail in combination with the drawings and examples below, wherein same parts are indicated with same reference signs.
[0014] Referring to Figures 1 to 3 The durable ring main unit of the hoisting structure of the embodiment shown in the drawing includes cabinet 1 and multiple hoisting assemblies 2 located at the top edge of cabinet 1, and cabinet 1 includes side plate, bottom plate and top plate;
[0015] Based on the prior art, hoisting assembly 2 includes suspender 4 and two springs 5, top plate includes lower top plate connected with side plate and upper top plate covered on lower top plate, multiple anti -collision grooves 3 are machined at the edge of lower top plate through cutting, lower half groove for accommodating both ends of suspender 4 is machined at the edge of the opposite groove wall of each anti -collision groove 3, the height of groove bottom of lower half groove is greater than the height of groove bottom of anti -collision groove 3, through hole with the same opening contour as anti -collision groove 3 is machined at the edge of upper top plate, upper half groove corresponding to lower half groove is machined on the surface of upper top plate towards lower top plate, spring cavity 6 for accommodating spring 5 is machined at the groove bottom of each upper half groove;
[0016] In the assembling process, the two ends of the lifting rod 4 are respectively placed in the lower half grooves on both sides of the same anti-collision groove 3, the middle part of the lifting rod 4 is located in the inner cavity of the anti-collision groove 3 and there is a gap for the hook tip to pass through between the lifting rod 4 and the groove bottom of the anti-collision groove 3, then one end of the spring 5 is adhered to the cavity bottom of the spring cavity 6 by adhesive, then the upper top plate is covered on the lower top plate, the upper half groove is aligned and communicated with the corresponding lower half groove and together forms a moving groove with a length greater than the diameter of the end of the lifting rod 4 in the vertical direction, the spring 5 remains in a vertical state and one end is in contact with the outer wall of the end of the lifting rod 4, and finally the upper top plate and the lower top plate are fixedly connected together by bolts;
[0017] In the initial state, under the action of gravity and the elastic force of the spring 5, the two ends of the lifting rod 4 are always located at the lowest end of the moving groove, and the distance between the lifting rod 4 and the groove bottom of the anti-collision groove 3 is the smallest; in the process of installing the hook, the hook tip is passed through the gap between the lifting rod 4 and the anti-collision groove 3, and as the subsequent part with a larger profile size of the hook tip continues to pass through the gap between the lifting rod 4 and the anti-collision groove 3, the lifting rod 4 and the groove bottom of the anti-collision groove 3 jointly generate a clamping force on the hook, and after the hook is hooked in place, the user cancels the force applied to the hook, and the hook is clamped in the anti-collision groove 3, and the foregoing process is repeated to sequentially connect multiple hooks in place; in the hoisting and carrying process, as the lifting rope is straightened and drives the hook to pull the lifting rod 4, the lifting rod 4 moves upward relative to the moving groove, the spring 5 is elastically deformed, and until the lifting rod 4 moves to the highest end of the moving groove, the two ends of the lifting rod 4 exert an upward force on the top plate to drive the cabinet 1 to be lifted up, and after the cabinet 1 is carried into place, in the process that the lifting rope is converted from being straightened to being relaxed, the spring 5 restores the deformation and pushes the lifting rod 4 to move downward, the lifting rod 4 and the hook as a whole move downward and return to the state that the hook is clamped, and the user can move the hook out of the anti-collision groove 3 by pulling the lifting rod 4;
[0018] The design that the lifting rod 4 is located in the anti-collision groove 3 can reduce the probability that the external falling objects collide with the lifting rod 4 compared with the design that the hoisting assembly 2 protrudes relative to the top of the cabinet 1, improve the structural stability of the lifting rod 4, and indirectly improve the safety during hoisting; the design that the lifting rod 4 and the groove bottom of the anti-collision groove 3 jointly clamp the hook can make up for the defect that the hook is easy to be pulled out of the hoisting assembly 2 in the prior art, effectively improve the connection stability between the hook and the lifting rod 4, and indirectly improve the safety during hoisting; the design of the spring 5 can provide a buffering effect for the lifting rod 4, avoid the case that the hook generates a large instantaneous tensile force on the lifting rod 4 due to the sudden straightening of the lifting rope, and reduce the degree of damage to the lifting rod 4.
[0019] As an improved specific embodiment, reference is made to Figure 2 and Figure 3As shown, the boom 4 is made of straight rod body by multiple bending, the boom 4 includes two parallel to the horizontal plane insertion part 41 and a V-shaped tension part 42, both ends of the tension part 42 are connected with one end of the two insertion parts 41 respectively, when the hook is inserted between the tension part 42 and the bottom of the anti-collision groove 3, the hook will slide along the inclined edge of the tension part 42 and move to the top end position of the tension part 42, the design can adjust the position between the hook and the tension part 42, ensure the position of the hook pulling the tension part 42 is fixed, so that the tension part 42 is evenly stressed, the balance of the cabinet 1 when being pulled is better.
[0020] Further explanation, the tip of the tension part 42 can be designed as a horizontal rod according to the width of the hook, that is, the shape of the tension part 42 is the shape of the trapezoid after removing the lower bottom.
[0021] As an improved embodiment, when the boom 4 is pulled, the spring 5 on both sides of the boom 4 is deformed, which causes the boom 4 to tilt relative to the horizontal plane, which will cause the lifting effect to decrease and there will be a potential safety hazard. Figure 3 As shown, the outer wall of the two insertion parts 41 is integrally formed with a guide rod 43, the guide rod 43 has two design methods, one is that the diameter of the guide rod 43 matches the inner diameter of the spring 5, then during assembly, the spring 5 can be sleeved on the outside of the guide rod 43, then the upper top plate is covered on the lower top plate, the outer diameter of the spring 5 matches the diameter of the spring cavity 6, the guide rod 43 partially extends into the spring cavity 6, when the boom 4 moves upward, the guide rods 43 at both ends of the boom 4 move along the axis direction of the spring 5; the second is that the diameter of the guide rod 43 matches the diameter of the spring cavity 6, then after the upper top plate and the lower top plate are assembled in place, the guide rod 43 extends into the spring cavity 6 and the end face of the guide rod 43 is in contact with the spring 5, when the boom 4 moves upward, the guide rods 43 at both ends of the boom 4 move along the axis direction of the spring cavity 6, the two methods are determined according to actual needs, the design can ensure that the state of the boom 4 relative to the horizontal plane is always unchanged, effectively ensuring the balance of the cabinet 1 during lifting.
[0022] As an improved embodiment, as shown in Figure 2 and Figure 3 As shown, the bottom of the anti-collision groove 3 is downwardly inclined relative to the horizontal plane and the bottom of the anti-collision groove 3 is located at the minimum height of one end of the top plate side wall, the design increases the opening height of the anti-collision groove 3 on the top plate side wall, which facilitates the hook to enter the anti-collision groove 3 more conveniently and outline the outside of the boom 4, at the same time, can guide the rainwater to flow out of the anti-collision groove 3 quickly, slow down the phenomenon of rainwater penetrating into the moving groove and accelerating the rusting of the spring 5, indirectly prolong the service life of the spring 5.
[0023] The above merely is preferred implementation manner of the present application, the protection scope of the present application is not only limited to the above examples, and belongs to the technical scheme under the idea of the present application all belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.
Claims
1. A durable ring main unit with lifting structure, comprising a cabinet (1) and a plurality of lifting assemblies (2) located at the top edge of the cabinet (1), characterized in that: The cabinet body (1) is provided with anti-collision grooves (3) at the top edge of the cabinet body (1) for accommodating a plurality of hoisting assemblies (2), the hoisting assembly (2) comprises a hoisting rod (4) capable of moving linearly along the height direction of the cabinet body (1) and two springs (5) each pushing the hoisting rod (4) downward, the cabinet body (1) is provided with spring cavities (6) in the top of the cabinet body (1) for accommodating the springs (5), the two ends of the hoisting rod (4) are respectively inserted into two opposite groove walls of the corresponding anti-collision groove (3) and are respectively located below the two springs (5), and the hoisting rod (4) is pushed downward by the springs (5) so that the hook can be clamped between the hoisting rod (4) and the groove bottom of the anti-collision groove (3).
2. A durable ring main unit of claim 1, wherein: The hoisting rod (4) comprises two plug-in parts (41) inserted into the groove walls of the anti-collision groove (3) and a V-shaped tension part (42), and the two ends of the tension part (42) are respectively connected with one end of the two plug-in parts (41).
3. A durable ring main unit of claim 2, wherein: The outer walls of the two plug-in parts (41) are each provided with a guide rod (43) capable of extending into the spring cavity (6) and moving linearly along the spring cavity (6).
4. A durable ring main unit according to claim 1 or 2 or 3, characterized in that: The groove bottoms of the plurality of anti-collision grooves (3) are each downwardly inclined relative to the horizontal plane, and the groove bottom of the anti-collision groove (3) is located at the smallest height on one end of the side wall of the top of the cabinet body (1).