Multi-blade threading connector capable of being controlled to be opened and closed

Abstract

The utility model discloses a multi-blade threading connector capable of being controlled to be opened and closed. The multi-blade threading connector comprises a fixing ring, a plurality of blades and a clamping mechanism. A plurality of fixing columns are fixed on the fixing ring; each blade is provided with a penetrating hole, the penetrating holes are used for allowing the corresponding fixing columns to be inserted, one end of each blade is provided with an arc-shaped notch, when each blade rotates to the corresponding preset position, the arc-shaped notches are closed and combined to form a circular channel used for allowing a cable to penetrate, and the radius of the circular channel is equal to that of the cable; and the clamping mechanism is used for keeping each blade at the corresponding preset position. The beneficial effects of the technical scheme provided by the utility model are that the radiuses of the circular channels are equal to the radiuses of the cables, so that the cables can be well attached to the blades, gaps between the cables and the blades are very small, heat exchange between the inside and the outside of the box is reduced, the temperature in the high-low temperature box is more stable, and the service life of the high-low temperature box is prolonged. And the situation of frequent falling like a rubber plug is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high and low temperature boxes, in particular to a multi-blade threading joint with controllable opening and closing. Background Art

[0002] The new energy industry often uses temperature control equipment such as high and low temperature boxes to test the performance of products at different temperatures. The specific method is to drill a hole on one side of the high and low temperature box, and then pass the cable of the test cabinet through the hole to the inside of the high and low temperature box to achieve the effect of using the product under the set temperature conditions. Generally, in order to adapt to different types of cables, the size of the threading hole of the high and low temperature box will be designed to be larger. After the cable passes through, the remaining part is blocked with a rubber plug to slow down the heat exchange between the inside of the temperature box and the external environment. The following problems will occur when the threading hole is blocked with a rubber plug:

[0003] (1) Although the rubber plug can be cut to fit cables of different thicknesses, the rubber plug is made of a hard material and is difficult to cut. If the cut opening does not match the shape of the cable, the gap at the threading hole will be too large, resulting in an excessive heat exchange rate between the high and low temperature chamber and the environment, and the temperature inside the chamber will be unstable, affecting the test accuracy.

[0004] (2) The rubber plug is fixed by the friction between the rubber plug and the threading hole after manual compression. If the degree of manual compression is not enough, the rubber plug may fall off, resulting in excessive heat exchange rate between the high and low temperature chamber and the environment, unstable temperature inside the chamber, and affecting the test accuracy. Utility Model Content

[0005] In view of this, it is necessary to provide a multi-blade threading joint with controllable opening and closing to solve the technical problem that sealing the threading hole with a rubber plug will cause the gap at the threading hole to be too large or the rubber plug to fall off.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a multi-blade threading connector which can be controlled to open and close, comprising a fixing ring, a plurality of blades and a clamping mechanism;

[0007] A plurality of fixing columns are fixed on the fixing ring;

[0008] Each of the blades is provided with a through hole for inserting the corresponding fixing column, and an arc-shaped notch is formed at one end of each of the blades. When each of the blades is rotated to a corresponding preset position, each of the arc-shaped notches is closed and combined into a circular channel for inserting a cable, and the radius of the circular channel is equal to the radius of the cable;

[0009] The clamping mechanism is connected to each of the blades and is used to keep each of the blades at a corresponding preset position.

[0010] In some embodiments, a positioning column is formed on each of the blades, and the clamping mechanism includes an adjusting ring, which is fixed to the upper end of each of the fixing columns. The distance between the fixing ring and the adjusting ring is adjustable, and the blade is located between the fixing ring and the adjusting ring. The adjusting ring is provided with a plurality of adjustment grooves for the corresponding positioning columns to pass through.

[0011] In some embodiments, a first fixing screw hole is provided on the fixing ring, a first clearance hole corresponding to the first fixing screw hole is provided on the adjusting ring, and the fixing column is a first fixing screw, which passes through the first clearance hole and the through hole and is threadedly connected to the first fixing screw hole.

[0012] In some embodiments, the clamping mechanism also includes a clamping ring, which is provided with a plurality of clamping holes that cooperate with each of the positioning columns. When each of the blades rotates to a corresponding preset position, each clamping hole of the positioning column can be clamped into the corresponding positioning column.

[0013] In some embodiments, the clamping ring is detachably fixed to the adjusting ring.

[0014] In some embodiments, a second fixing screw hole is provided on the adjustment ring, a second clearance hole corresponding to the second fixing screw hole is provided on the clamping ring, and the clamping mechanism also includes a second fixing screw, which passes through the second clearance hole and is threadedly connected to the second fixing screw hole.

[0015] In some embodiments, the inner wall of the threading hole of the box body is formed with an internal thread, and a connecting portion is formed on the fixing ring. The connecting portion is used to be inserted into the threading hole, and the outer side wall of the connecting portion is formed with an external thread that matches the internal thread.

[0016] In some embodiments, the connecting portion is integrally formed with the fixing ring.

[0017] In some embodiments, the blade is a plastic blade, a rubber blade, or a ceramic blade.

[0018] In some embodiments, the number of blades is no less than three.

[0019] Compared with the prior art, the technical solution proposed by the utility model has the following beneficial effects: when in use, first move each blade to a position with a larger opening, and each blade encloses a larger central channel, pass the terminal of the cable through the central channel, and then fix the fixing ring at the threading hole of the box body, and then rotate each blade to the corresponding preset position. At this time, each arc-shaped notch is closed and combined into a circular channel for inserting the cable, and then each blade is maintained in the corresponding preset position through a clamping mechanism. Since the radius of the circular channel is equal to the radius of the cable, a good fit between the cable and the blade can be ensured, and the gap between the cable and the blade is very small, thereby reducing the heat exchange inside and outside the box, making the temperature in the high and low temperature box more stable, and it will not fall off frequently like a rubber plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a multi-blade threading connector with controllable opening and closing provided by the utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of a controllable opening and closing multi-blade threading connector after omitting the clamping ring;

[0022] Figure 3 yes Figure 1 Exploded view of;

[0023] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the fixing ring in FIG.

[0024] Figure 5 yes Figure 3 Schematic diagram of the three-dimensional structure of the blade (closed state);

[0025] Figure 6 yes Figure 5 A schematic diagram of the structure of the blades in the open state;

[0026] In the figure: 1-fixing ring, 11-fixing column, 12-connecting part, 2-blade, 21-through hole, 22-arc-shaped notch, 23-positioning column, 3-clamping mechanism, 31-adjusting ring, 311-adjusting groove, 312-first clearance hole, 313-second fixing screw hole, 32-clamping ring, 321-clamping hole, 322-second clearance hole. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0028] Please refer to Figure 1-Figure 6 The utility model provides a multi-blade threading joint with controllable opening and closing, comprising a fixing ring 1, a plurality of blades 2 and a clamping mechanism 3;

[0029] A plurality of fixing columns 11 are fixed on the fixing ring 1;

[0030] Each of the blades 2 is provided with a through hole 21 for inserting the corresponding fixing column 11. An arc-shaped notch 22 is formed at one end of each of the blades 2. When each of the blades 2 is rotated to a corresponding preset position, each of the arc-shaped notches 22 is closed and combined into a circular channel for inserting a cable. The radius of the circular channel is equal to the radius of the cable.

[0031] The clamping mechanism 3 is connected to each of the blades and is used to keep each of the blades 2 at a corresponding preset position.

[0032] When in use, first move each blade 2 to a position with a larger opening (such as Figure 6 , at this time, each arc-shaped notch 22 is separated), each blade 2 encloses a larger central channel, the terminal of the cable is passed through the central channel, and then the fixing ring 1 is fixed to the threading hole of the box body, and then each blade 2 is rotated to the corresponding preset position. At this time, each of the arc-shaped notches 22 is closed and combined into a circular channel for inserting the cable (such as Figure 5 ), and then the clamping mechanism 3 is used to keep each of the blades 2 in the corresponding preset position. Since the radius of the circular channel is equal to the radius of the cable, it can ensure that the cable and the blade 2 fit well, and the gap between the cable and the blade 2 is very small, thereby reducing the heat exchange inside and outside the box, making the temperature in the high and low temperature box more stable, and it will not fall off frequently like the rubber plug.

[0033] In order to realize the function of the clamping mechanism 3, please refer to Figure 2 and Figure 3 In a preferred embodiment, each of the blades 2 is formed with a positioning column 23, and the clamping mechanism 3 includes an adjusting ring 31, which is fixed to the upper end of each of the fixing columns 11, and the distance between the fixing ring 1 and the adjusting ring 31 is adjustable. The blade 2 is located between the fixing ring 1 and the adjusting ring 31, and the adjusting ring 31 is provided with a plurality of adjusting slots 311 for the corresponding positioning columns 23 to pass through. When in use, when it is necessary to fix each blade 2, it is only necessary to adjust the distance between the fixing ring 1 and the adjusting ring 31 to the minimum, so that the blade 2 is pressed by the fixing ring 1 and the adjusting ring 31 to prevent the blade 2 from loosening.

[0034] In order to realize the adjustable distance between the fixing ring 1 and the adjusting ring 31, please refer to Figure 1 In a preferred embodiment, a first fixing screw hole is provided on the fixing ring 1, and a first clearance hole 312 corresponding to the first fixing screw hole is provided on the adjusting ring 31. The fixing column 11 is a first fixing screw, and the first fixing screw passes through the first clearance hole 312 and the through hole 21 and is threadedly connected with the first fixing screw hole. When it is necessary to adjust the distance between the fixing ring 1 and the adjusting ring 31, it is only necessary to adjust the screwing depth of the first fixing screw in the first fixing screw hole. When it is necessary to lock the blade 2, it is only necessary to screw the first fixing screw to the maximum depth.

[0035] In order to further improve the fixing effect of each blade 2, please refer to Figure 1-Figure 3 In a preferred embodiment, the clamping mechanism 3 also includes a clamping ring 32, and a plurality of clamping holes 321 are provided on the clamping ring 32 to cooperate with each of the positioning columns 23. When each of the blades 2 is rotated to the corresponding preset position, each of the clamping holes 321 of the positioning column 23 can be clamped into the corresponding positioning column 23, so that each of the positioning columns 23 can be clamped by the clamping ring 32 to prevent the positioning column 23 from moving, thereby keeping each of the blades 2 at the corresponding preset position to prevent the blades 2 from loosening due to the weight of the cable.

[0036] To prevent the snap ring 32 from falling off, refer to Figure 1-Figure 3 In a preferred embodiment, the clamping ring 32 is detachably fixed to the adjusting ring 31 .

[0037] In order to realize that the clamping ring 32 can be detachably fixed to the adjusting ring 31, please refer to Figure 1-Figure 3 In a preferred embodiment, a second fixing screw hole 313 is provided on the adjusting ring 31, and a second clearance hole 322 corresponding to the second fixing screw hole 313 is provided on the retaining ring 32. The clamping mechanism 3 also includes a second fixing screw, which passes through the second clearance hole 322 and is threadedly connected to the second fixing screw hole 313. When the retaining ring 32 needs to be fixed to the adjusting ring 31, it is only necessary to pass the second fixing screw through the second clearance hole 322 and then be threadedly connected to the second fixing screw hole 313.

[0038] In order to realize the fixing of the fixing ring 1 and the threading hole of the box, please refer to Figure 1-Figure 4 In a preferred embodiment, the inner wall of the threading hole of the box body is formed with an internal thread, and the fixing ring 1 is formed with a connecting portion 12, and the connecting portion 12 is used to be inserted into the threading hole, and the outer wall of the connecting portion 12 is formed with an external thread that matches the internal thread. Therefore, the fixing ring 1 can be fixed to the threading hole of the box body by threaded connection. It should be understood that the fixing ring 1 can also be fixed to the threading hole of the box body by other methods, including but not limited to snap connection, magnetic connection, etc.

[0039] In order to improve the firmness of the connection portion 12, please refer to Figure 1-Figure 4 In a preferred embodiment, the connecting portion 12 is integrally formed with the fixing ring 1 .

[0040] To meet different usage requirements, please refer to Figure 1-Figure 3 In a preferred embodiment, the blade 2 is a plastic blade, a rubber blade or a ceramic blade. The blade 2 can also be made of other materials to meet different usage requirements.

[0041] To improve the sealing effect, please refer to Figure 1 In a preferred embodiment, the number of the blades 2 is not less than three.

[0042] In order to better understand the present invention, the following Figure 1-Figure 6 The working process of the multi-blade threading connector with controllable opening and closing provided by the utility model is described in detail: when in use, first move each blade 2 to a position with a larger opening (such as Figure 6 , at this time, each arc-shaped notch 22 is separated), each blade 2 encloses a larger central channel, the terminal of the cable passes through the clamp ring 32 and the central channel, and then the fixing ring 1 is fixed to the threading hole of the box body, and then each blade 2 is rotated to the corresponding preset position. At this time, each of the arc-shaped notches 22 is closed and combined into a circular channel for inserting the cable (such as Figure 5 ), and then clamp each blade 2 through the clamping ring 32, and then fix the clamping ring 32 and the adjusting ring 31, and then tighten each fixing column 11. Since the radius of the circular channel is equal to the radius of the cable, it can ensure that the cable and the blade 2 fit well, and the gap between the cable and the blade 2 is very small, thereby reducing the heat exchange inside and outside the box, making the temperature in the high and low temperature box more stable, and it will not fall off frequently like the rubber plug.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-blade threading connector that can be controlled to open and close. It is characterized in that It includes a fixing ring, a plurality of blades and a clamping mechanism; A plurality of fixing columns are fixed on the fixing ring; Each of the blades is provided with a through hole for inserting the corresponding fixing column, and an arc-shaped notch is formed at one end of each of the blades. When each of the blades is rotated to a corresponding preset position, each of the arc-shaped notches is closed and combined into a circular channel for inserting a cable, and the radius of the circular channel is equal to the radius of the cable; The clamping mechanism is connected to each of the blades and is used to keep each of the blades at a corresponding preset position.

2. The multi-blade threading connector with controllable opening and closing according to claim 1, It is characterized in that A positioning column is formed on each of the blades, and the clamping mechanism includes an adjusting ring, which is fixed to the upper end of each of the fixing columns. The distance between the fixing ring and the adjusting ring is adjustable, and the blade is located between the fixing ring and the adjusting ring. The adjusting ring is provided with a plurality of adjustment grooves for the corresponding positioning columns to pass through.

3. The controllable opening and closing multi-blade threading connector according to claim 2, It is characterized in that The fixing ring is provided with a first fixing screw hole, the adjusting ring is provided with a first clearance hole corresponding to the first fixing screw hole, the fixing column is a first fixing screw, and the first fixing screw is threadedly connected with the first fixing screw hole after passing through the first clearance hole and the through hole.

4. The multi-blade threading connector with controllable opening and closing according to claim 2, It is characterized in that The clamping mechanism also includes a clamping ring, which is provided with a plurality of clamping holes that match the respective positioning posts. When the respective blades are rotated to a corresponding preset position, the respective clamping holes of the positioning posts can be clamped into the corresponding positioning posts.

5. The multi-blade threading connector with controllable opening and closing according to claim 4, It is characterized in that The clamping ring is detachably fixed to the adjusting ring.

6. The controllable opening and closing multi-blade threading connector according to claim 5, It is characterized in that The adjusting ring is provided with a second fixing screw hole, the clamping ring is provided with a second clearance hole corresponding to the second fixing screw hole, and the clamping mechanism further comprises a second fixing screw, which passes through the second clearance hole and is threadedly connected with the second fixing screw hole.

7. The multi-blade threading connector with controllable opening and closing according to claim 1, It is characterized in that The inner wall of the threading hole of the box body is formed with an internal thread, the fixing ring is formed with a connecting portion, the connecting portion is used to be inserted into the threading hole, and the outer side wall of the connecting portion is formed with an external thread matching with the internal thread.

8. The multi-blade threading connector with controllable opening and closing according to claim 7, It is characterized in that The connecting portion and the fixing ring are integrally formed.

9. The multi-blade threading connector with controllable opening and closing according to claim 1, It is characterized in that The blades are plastic blades, rubber blades or ceramic blades.

10. The multi-blade threading connector with controllable opening and closing according to claim 1, It is characterized in that The number of the blades is not less than three.

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