Portable relay protection field debugging tool box
By designing a U-shaped handle and flexible retractable rollers on the toolbox, the problem of inconvenient carrying of existing toolboxes has been solved, achieving a more convenient way to carry them.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DATANG ANYANG POWER GENERATION CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-21
AI Technical Summary
The existing relay protection field commissioning toolbox is inconvenient to carry, especially since it requires the arm to be extended when carrying it, which causes discomfort.
A portable relay protection field debugging toolbox was designed, featuring a U-shaped handle, a hinged load-bearing section and end cap, and a structure with guide rail grooves and guide rail blocks. Combined with a shoulder strap and elastic retractable rollers, it allows for reduced arm extension when the toolbox is carried diagonally or by hand.
The improved structural design reduces arm extension when carrying the toolbox, enhancing its portability and making it easier to carry.
Smart Images

Figure CN224144612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power maintenance technology, specifically a portable relay protection field debugging toolbox. Background Technology
[0002] The CN207522567U relay protection debugging toolbox includes a movable box, a fixed box, a partition, and a computer. A handle is movably connected to the center of the upper surface of the movable box. The interior of the movable box has placement slots, with a hinged door at the front end of the placement slots. A locking strap A is fixedly connected to the outer surface of the door. A rotating shaft is located on the lower left side of the fixed box, and the movable box is movably connected to the upper surface of the fixed box via the rotating shaft. A latch A is fixedly connected to the contact surface between the movable box and the fixed box. The fixed box includes a bottom placement slot, a middle placement slot, and a top placement slot. A fixed shaft is fixedly connected to the upper surface of the partition, and a rotating block is movably connected to the outer surface of the fixed shaft. A rubber sleeve is fixedly connected to the right surface of the partition, and a latch B is fixedly connected to the center of the upper surface of the rubber sleeve. The computer is fixedly connected to the inner right surface of the rubber sleeve. This device solves the problem of inconvenient use of relay protection debugging toolboxes. The handle of this device is located at the top center of the toolbox. When lifting the handle, due to the width limitation of the toolbox, the arm needs to be tilted outward to avoid collision with the user, making it inconvenient to carry. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a portable relay protection field commissioning toolbox, which solves the problem of inconvenience in carrying existing relay protection field commissioning toolboxes.
[0004] Technical solution
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a portable relay protection field debugging toolbox, comprising a toolbox, the toolbox being divided into a support part and an end cover part, the support part and the end cover part being hinged together, the end cover part being located above the support part, the narrow end of the support part being provided with guide rail grooves on both sides, the guide rail grooves being slidably connected with guide rail blocks inside, the two guide rail blocks being fixedly connected by a handle, the cross-sectional shape of the handle being "U" shaped.
[0006] Furthermore, a fixing component is provided at the end of the bearing part and the end cover part away from the hinge axis. The fixing component is divided into two parts, one part is fixedly connected to the bearing part, and the other part is fixedly connected to the end cover part.
[0007] Furthermore, the handle is made of thin-walled plastic, with reinforcing ribs on the inner side, a smooth outer surface, and anti-slip protrusions in the middle of the handle's crossbeam.
[0008] Furthermore, one end of the bearing part is hinged to a shoulder strap, and the end of the shoulder strap away from the bearing part is provided with an elastic winding roller. The bearing part is provided with a placement groove on the side where the shoulder strap is hinged, and the bearing part is provided with a snap-fit groove on the side away from the shoulder strap hinge to engage with the elastic winding roller.
[0009] Furthermore, a shoulder strap is fitted onto the outer surface of the shoulder strap, the width of which is greater than the width of the shoulder strap, and a rigid elastic lining is inlaid inside the end of the shoulder strap located on the inner side of the shoulder strap.
[0010] Furthermore, the surface of the shoulder strap is provided with a plug hole, and a plug rod inserted into the plug hole is inserted into the surface of the snap-fit groove.
[0011] Furthermore, the elastic winding roller includes a housing, inside which a torsion spring is provided, and inside which a winding wheel rotates synchronously with the torsion spring is provided, with a strap wrapped around the outer surface of the winding wheel.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This portable relay protection field debugging toolbox, through this design, can change the distance between the toolbox and the human body when carried by hand, thereby reducing the outward extension of the arm when carrying it, thus making the toolbox more convenient to carry.
[0014] 2. The portable relay protection field debugging toolbox has a shoulder strap hinged to one end of the carrying unit. An elastic winding roller is provided at the end of the shoulder strap away from the carrying unit. A placement groove is provided on the side of the carrying unit where the shoulder strap is hinged, and a snap-fit groove is provided on the side of the carrying unit away from the shoulder strap where it engages with the elastic winding roller. This design allows the toolbox to be carried diagonally using the shoulder strap, making it easy to carry. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a partial schematic diagram of the toolbox of this utility model;
[0017] Figure 3 This is a schematic diagram of the handle connection of this utility model;
[0018] Figure 4 This is a schematic diagram of the strap connection of this utility model;
[0019] Figure 5 This is a half-sectional schematic diagram of the elastic winding roller of this utility model.
[0020] Among them, 1. Toolbox; 101. Bearing part; 102. End cap part; 2. Guide rail groove; 3. Guide rail block; 4. Handle; 5. Fixing part; 6. Elastic winding roller; 7. Placement groove; 8. Snap-fit groove; 9. Shoulder strap; 10. Lining; 11. Insertion hole; 12. Insertion rod; 14. Back strap; 601. Outer shell; 602. Torsion spring part; 603. Winding wheel. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] See Figures 1-5 A portable relay protection field debugging toolbox includes a toolbox 1, which is divided into a support part 101 and an end cover part 102. The support part 101 and the end cover part 102 are hinged together. The end cover part 102 is located above the support part 101. Guide rail grooves 2 are provided on both sides of the narrow end of the support part 101. Guide rail blocks 3 are slidably connected inside the guide rail grooves 2. The upper end face of the guide rail grooves 2 is sealed to limit the maximum displacement of the guide rail blocks 3. The two guide rail blocks 3 are fixedly connected by a handle 4. The cross-sectional shape of the handle 4 is U-shaped. Since the handle 4 is located at the narrow end, the distance from the toolbox 1 to the body is half the thickness of the toolbox 1. When the handle 4 is located at the wide end, the distance from the toolbox 1 to the body is half the length of the toolbox 1. The length is much greater than the thickness. This setting can change the distance between the toolbox 1 and the human body when carrying it, thereby reducing the outward expansion of the arm when carrying it, and making the toolbox 1 easier to carry.
[0023] A fixing member 5 is provided at the end of the bearing part 101 and the end cap part 102 away from the hinge axis. The fixing member 5 is divided into two parts: one part is fixedly connected to the bearing part 101 and the other part is fixedly connected to the end cap part 102. By setting the fixing member 5, such as a press-type buckle or a rotation buckle, the bearing part 101 and the end cap part 102 can be connected together, thereby preventing them from separating when carried.
[0024] The handle 4 is made of thin-walled plastic. The inner side of the handle 4 is reinforced with ribs, the outer surface of the handle 4 is smooth, and the middle of the crossbeam of the handle 4 is provided with anti-slip protrusions. This design can reduce the weight of the handle 4 without changing its strength, thereby making it easier to carry.
[0025] One end of the carrying unit 101 is hinged to a shoulder strap 14. The end of the shoulder strap 14 away from the carrying unit 101 is provided with an elastic winding roller 6. There are two types of elastic winding rollers 6: one type has a self-locking function, which restricts the outward pulling after a specified length is pulled out; the other type can only be pulled outward and requires an external device to lock and limit the length of the outward pulling of the shoulder strap 14. The carrying unit 101 is provided with a placement groove 7 on the side where the shoulder strap 14 is hinged. The placement groove 7 is used to store the wound elastic winding roller 6. The elastic winding roller 6 is engaged with the placement groove 7. The carrying unit 101 is provided with a snap-fit groove 8 on the side away from the shoulder strap 14, which engages with the elastic winding roller 6. Both ends of the elastic winding roller 6 are provided with snap-fit posts, which engage with the snap-fit groove 8. With this arrangement, the toolbox 1 can be carried diagonally using the shoulder strap 14, which makes it easy to carry.
[0026] The outer surface of the shoulder strap 14 is fitted with a shoulder strap 9. The width of the shoulder strap 9 is greater than the width of the shoulder strap 14. The end of the shoulder strap 9 located inside the shoulder strap 14 is inlaid with a rigid elastic lining 10. This design allows for more comfortable carrying and increases the contact area between the shoulder strap 14 and the human body.
[0027] The surface of the shoulder strap 14 is provided with an insertion hole 11, and the surface of the snap-fit groove 8 is provided with an insertion rod 12 that is inserted into the insertion hole 11. This technical solution is compatible with the elastic rewinding roller 6 without self-locking function. This setting can limit the length of the shoulder strap 14 that can be pulled out.
[0028] The elastic winding roller 6 includes a housing 601, a torsion spring 602 is provided inside the housing 601, and a winding wheel 603 that rotates synchronously with the torsion spring 602 is provided inside the housing 601. The shoulder strap 14 is wound around the outer surface of the winding wheel 603. This arrangement can at least ensure that the shoulder strap 14 can be automatically wound into the inside of the housing 601.
[0029] When in use, this setting can change the distance between the toolbox 1 and the human body when carrying it, thereby reducing the outward expansion of the arm when carrying it, making the toolbox 1 more convenient to carry.
[0030] It also features a retractable shoulder strap 14, which allows the toolbox 1 to be carried diagonally, making it more convenient to carry.
[0031] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A portable relay protection field commissioning kit comprising a kit (1), characterized in that: The toolbox (1) is divided into a support part (101) and an end cover part (102), which are hinged together, and the end cover part (102) is located above the support part (101); The narrow end of the bearing part (101) is provided with guide rail grooves (2) on both sides. The guide rail grooves (2) are slidably connected with guide rail blocks (3). The two guide rail blocks (3) are fixedly connected by a handle (4). The cross-sectional shape of the handle (4) is "U".
2. The portable relay protection field commissioning kit of claim 1, wherein: The bearing portion (101) and the end cap portion (102) are provided with a fixing component (5) at the end away from the hinge axis. The fixing component (5) is divided into two parts, one part is fixedly connected to the bearing portion (101), and the other part is fixedly connected to the end cap portion (102).
3. The portable relay protection field commissioning kit of claim 1, wherein: The handle (4) is made of thin-walled plastic. The inner side of the handle (4) is provided with reinforcing ribs, the outer surface of the handle (4) is smooth, and the middle part of the crossbeam of the handle (4) is provided with anti-slip protrusions.
4. The portable relay protection field commissioning kit according to any one of claims 1-3, characterized in that: One end of the bearing part (101) is hinged to a shoulder strap (14), and an elastic winding roller (6) is provided at the end of the shoulder strap (14) away from the bearing part (101). The bearing part (101) is provided with a placement groove (7) on the side where the shoulder strap (14) is hinged, and a snap-fit groove (8) is provided on the side of the bearing part (101) away from the shoulder strap (14) for engaging with the elastic winding roller (6).
5. The portable relay protection field debugging toolbox according to claim 4, characterized in that: The outer surface of the shoulder strap (14) is fitted with a shoulder strap (9), the width of which is greater than the width of the shoulder strap (14), and a rigid elastic lining (10) is inlaid inside one end of the shoulder strap (9) located inside the shoulder strap (14).
6. The portable relay protection field commissioning kit of claim 4, wherein: The surface of the shoulder strap (14) is provided with a plug hole (11), and a plug rod (12) is inserted into the surface of the snap groove (8).
7. The portable relay protection field commissioning kit of claim 4, wherein: The elastic winding roller (6) includes a housing (601), a torsion spring (602) is provided inside the housing (601), and a winding wheel (603) that rotates synchronously with the torsion spring (602) is provided inside the housing (601). The shoulder strap (14) is wound around the outer surface of the winding wheel (603).
Citation Information
Patent Citations
Relay protection debugging toolbox
CN207522567U