Jig for combiner box

Abstract

The utility model provides a combiner box clamp which comprises a U-shaped clamp and a spiral locking rod, the spiral locking rod is in threaded connection with one end of the U-shaped clamp, and the end, located in the U-shaped clamp, of the spiral locking rod is provided with an abutting seat; according to the clamp, the U-shaped clamp matched with the combiner box in width is designed, clamping plates on the two sides of the U-shaped clamp are located on the front side and the rear side of the box body respectively, the U-shaped clamp is in threaded connection with the spiral locking rod, the abutting seat can abut against the box body by screwing the spiral locking rod, the clamping force is adjusted by adjusting the spiral locking rod, and therefore the box body can be clamped conveniently. By using the clamp, tight fitting and effective sealing between the box door and the box body can be ensured, rainwater and moisture are prevented from permeating, meanwhile, the clamp can bear the test of severe weather such as strong wind and the like, and safe and stable operation of the combiner box is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of combiner box locks, in particular to a combiner box clamp. Background Art

[0002] At present, most combiner boxes on the market use a universal electrical cabinet linkage lock as a door locking device when they leave the factory. Although this linkage lock can achieve the closing and locking of the door to a certain extent, its structural design and use effect have many shortcomings. First, due to its complex mechanical structure, the linkage lock is prone to wear, looseness or even breakage during long-term use, resulting in the inability to effectively lock the door, thereby affecting the overall sealing of the combiner box. Secondly, when it rains, since the linkage lock cannot ensure the tightness of the seal between the door and the box body, rainwater and moisture can easily penetrate into the combiner box through the door gap, causing corrosion and damage to the internal electrical equipment, and even causing equipment failure in severe cases, affecting the normal operation of the photovoltaic system. In addition, under severe weather conditions such as strong winds, the linkage lock is often unable to withstand the impact of external forces, causing the door to be blown open, which not only poses a safety hazard, but may also cause damage to surrounding equipment and personnel. This situation is particularly prominent in extreme weather such as typhoons and heavy rains, which brings great challenges to the operation and maintenance of photovoltaic power stations.

[0003] In view of the above problems, there is an urgent need for a more reliable and stable combiner box door clamping device to replace the existing connecting rod lock to clamp the box door. Utility Model Content

[0004] The utility model aims to provide a combiner box clamp, which can stably clamp the box door of the combiner box.

[0005] The utility model provides a junction box clamp, comprising a U-shaped clamp and a spiral locking rod, wherein the spiral locking rod is threadedly connected to one end of the U-shaped clamp, and an abutment seat is arranged at one end of the spiral locking rod located inside the U-shaped clamp.

[0006] Furthermore, the spiral locking rod is threadedly connected to the abutment seat.

[0007] Furthermore, a handle is provided on one end of the spiral locking rod away from the abutment seat.

[0008] Furthermore, a rubber pad is provided on a side of the abutment seat away from the spiral locking rod.

[0009] Furthermore, the U-shaped clip, the spiral locking rod and the abutment seat are all made of stainless steel.

[0010] Further, an anti-loosening locking device is provided on the spiral locking rod. The anti-loosening locking device includes a locking nut and two mutually engaging locking washers. On one side where the two locking washers are in contact with each other, there are mutually cooperating ratchet teeth. The inclination angle of the ratchet teeth is greater than the lead angle of the thread on the spiral locking rod. On one side of each locking washer away from the ratchet teeth, there are radial saw teeth.

[0011] Further, the handle has an annular structure.

[0012] Further, the distance between the two clamping plates on both sides of the U-shaped clamp is 140 mm.

[0013] Further, on the inner side of the clamping plate on the side of the U-shaped clamp away from the spiral locking rod, there is an anti-slip layer.

[0014] Further, the anti-slip layer is a frosted layer or an adhered rubber pad.

[0015] The beneficial effects of this technical solution compared with the prior art are as follows: By designing a U-shaped clamp adapted to the width of the busbar trunking, the two clamping plates on both sides of the U-shaped clamp are respectively located on the front and back sides of the box body. The U-shaped clamp is threadedly connected to the spiral locking rod. By turning the spiral locking rod, the abutting seat can abut against the box body. By adjusting the spiral locking rod, the clamping force can be adjusted. The use of this clamp can ensure the tight fit and effective sealing between the box door and the box body, prevent rainwater and moisture from seeping in, and at the same time can withstand the test of harsh weather such as strong winds, ensuring the safe and stable operation of the busbar trunking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 The enlarged view of the structure at A in it.

[0019] Figure 3 It is a reference diagram of the use state of the present invention.

[0020] Explanation of the reference numerals in the drawings: 1-U-shaped clamp, 2-spiral locking rod, 3-abutting seat, 4-handle, 5-box body, 6-box door, 7-locking nut, 8-locking washer, 9-radial saw teeth, 10-ratchet teeth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Embodiment 1

[0025] As Figure 1 and Figure 3As shown, the utility model provides a junction box clamp, including a U-shaped clamp 1 and a spiral locking rod 2. The two sides of the U-shaped clamp 1 are flat clamps. The spacing between the two clamps is 140 mm, which is greater than the width of the junction box. The spiral locking rod 2 is threadedly connected to one end of the U-shaped clamp 1. The end of the spiral locking rod 2 located inside the U-shaped clamp 1 is provided with an abutment seat 3. The spiral locking rod 2 is threadedly connected to the abutment seat 3, that is, the abutment seat 3 is provided with a threaded hole, and the spiral locking rod 2 is provided with a threaded connection portion that matches the threaded hole to achieve a detachable connection of the abutment seat 3. A handle 4 is provided on the end of the spiral locking rod 2 away from the abutment seat 3. The handle 4 is a flat circular ring structure, which is convenient for using it to twist the spiral locking rod 2.

[0026] A rubber pad is provided on the side of the abutment seat 3 away from the spiral locking rod 2 to facilitate better fit with the box body 5.

[0027] The U-shaped clip 1, the spiral locking rod 2 and the abutment seat 3 in this embodiment are all made of stainless steel to prevent rust and affect the use.

[0028] An anti-skid layer is provided on the inner side of the clamping plate on the side of the U-shaped clamp 1 away from the spiral locking rod 2 to enhance the friction when in contact with the door 6, wherein the anti-skid layer is a frosted layer or a bonded rubber pad.

[0029] Example 2

[0030] like Figure 2 As shown, the technical features of this embodiment and embodiment 1 are as follows: an anti-loosening locking device is provided on the spiral locking rod 2, and the anti-loosening locking device includes a locking nut 7 and two mutually engaged locking washers 8. The two locking washers 8 are provided with mutually matched ratchet teeth 10 on one side where they are in contact with each other. The inclination angle of the ratchet teeth 10 is greater than the thread lead angle on the spiral locking rod 2. When the bolt is vibrated or tries to loosen, the inner ratchet surface of the locking washer will be relatively displaced, generating lifting tension, increasing the friction between the contact surfaces, thereby preventing the bolt from being further loosened; each locking washer 8 is provided with radial serrations 9 on one side away from the ratchet teeth 10. The radial serrations 9 form multiple contact points with the bottom surface of the locking nut 7 and the outer surface of the U-shaped clip 1, increasing the contact area and friction. When there is a force trying to loosen the spiral locking rod 2, these radial serrations 9 can provide additional resistance to prevent the spiral locking rod 2 or the locking nut 7 from rotating. Secondly, the convex patterns of the radial serrations 9 penetrate deep into the microscopic depressions of the contact surface, similar to the effect of mechanical locking, which can prevent the locking washer from sliding when subjected to vibration or dynamic loads.

[0031] The fixture is designed with a U-shaped clamp 1 adapted to the width of the busbar box, so that the two clamping plates on both sides of the U-shaped clamp 1 are respectively located on the front and back sides of the box body 5. The U-shaped clamp 1 is threadedly connected to the screw locking rod 2. By turning the screw locking rod 2, the abutting seat 3 can be made to abut against the box body 5, and the clamping force can be adjusted by adjusting the screw locking rod 2. The use of this fixture can ensure the tight fit and effective sealing between the box door 6 and the box body 5, prevent rainwater and moisture from seeping in, and at the same time can withstand the test of harsh weather such as strong winds, ensuring the safe and stable operation of the busbar box.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combiner box fixture, characterized in that: It comprises a U-shaped clamp and a spiral locking rod, wherein the spiral locking rod is threadedly connected to one end of the U-shaped clamp, and an abutment seat is arranged at one end of the spiral locking rod located inside the U-shaped clamp.

2. The combiner box fixture according to claim 1, characterized in that: The spiral locking rod is threadedly connected to the abutment seat.

3. The combiner box fixture according to claim 1, characterized in that: A handle is provided on one end of the spiral locking rod away from the abutment seat.

4. The combiner box fixture according to claim 1, characterized in that: A rubber pad is provided on one side of the abutment seat away from the spiral locking rod.

5. The combiner box fixture according to claim 1, characterized in that: The U-shaped clip, the spiral locking rod and the abutment seat are all made of stainless steel.

6. The combiner box fixture according to claim 1, characterized in that: The spiral locking rod is provided with an anti-loosening locking device, which includes a locking nut and two locking washers that bite into each other. The two locking washers are provided with mutually matching ratchets on one side that fits against each other. The inclination angle of the ratchet is greater than the thread lead angle on the spiral locking rod. Each locking washer is provided with radial serrations on one side away from the ratchet.

7. The combiner box fixture according to claim 3, characterized in that: The handle is a circular ring structure.

8. The combiner box fixture according to claim 1, characterized in that: The spacing between the clamping plates on both sides of the U-shaped clamp is 140 mm.

9. The combiner box fixture according to claim 1, characterized in that: An anti-slip layer is provided on the inner side of a clamping plate on a side of the U-shaped clamp away from the spiral locking rod.

10. The combiner box fixture according to claim 9, characterized in that: The anti-slip layer is a frosted layer or a bonded rubber pad.

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