Insulation cap

Abstract

The insulating cap is provided with a hemispherical thread part, a nut clamping part and a base sleeving part which are integrally formed from top to bottom, the insulating cap is made of silicon rubber; the nut clamping part has taper; the number of threads of the hemispherical thread part is increased. According to the utility model, the problem that the existing insulating cap is easy to fall off is solved by adding the nut clamping part, and the connection firmness degree is increased; the silicone rubber material solves the problem that the existing PPO insulating cap is easy to crack; a tapered nut clamping part is manufactured, so that the anti-falling effect is further improved, and the connection is more reliable; by increasing the number of threads, the connection tightness of the insulation cap product is further improved, and the risk of falling off is avoided; according to the utility model, the insulation cap is effectively prevented from cracking and falling off, and the connection is tight, safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model mainly is urban rail transit straddle type monorail system contact rail insulation base accessory, specifically relates to a kind of insulating cap. BACKGROUND

[0002] Insulating cap structure of bolt matched with the insulating base in the field of urban rail transit straddle type monorail system contact rail needs insulation and protection. Figure 1 As shown in the prior art, the insulating cap structure of bolt matched with the insulating base is hemispherical (as shown in the figure), the inside is pure thread, the material is PPO, only the internal thread cooperates with bolt, due to various reasons such as severe environment line vibration material thermal expansion and cold shrinkage, product crack and shedding may occur. Figure 2 To this end, the following improvement technical scheme is proposed. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problems: provide a kind of insulating cap, solve the technical problems that existing insulating cap is easy to fall off.

[0004] The technical scheme employed by the utility model: a kind of insulating cap, with from top to bottom integrally formed hemispherical thread part, nut engaging portion and base sleeve portion.

[0005] In the above technical scheme, further: the insulating cap is the insulating cap of silicon rubber material.

[0006] In the foregoing technical scheme, hemispherical thread part is screwed with the bolt in insulating base; nut engaging portion is engaged with the nut in insulating base; base sleeve portion is adapted with the base sleeve in insulating base.

[0007] In any of the foregoing technical schemes, the nut engaging portion is an internal hexagonal structure.

[0008] In any of the foregoing technical schemes, further: the nut engaging portion has taper.

[0009] In any of the foregoing technical schemes, further: the number of threads of hemispherical thread part is greater than or equal to the number of threads of bolt exposed part.

[0010] The advantages of the utility model compared with prior art are:

[0011] 1、the utility model increases nut engaging portion to solve the problem that existing insulating cap is easy to fall off, and the degree of connection firmness increases.

[0012] 2、the utility model selects silicon rubber material, solves the problem that existing PPO insulating cap is easy to crack, and silicon rubber material is high temperature resistant, weather resistant, and excellent in electrical insulation performance.

[0013] 3. The utility model discloses nut engaging part of the inner hexagonal structure is used to adapt the nut standard spare of city rail transit straddle type monorail system contact rail insulation base.

[0014] 4. The utility model discloses nut engaging part has certain taper, further improves the effect of anti -drop, and the connection is more reliable, because the friction between nut engaging part and nut has been increased, therefore, the anti -pulling capacity is effectively improved.

[0015] 5. The utility model discloses further improve the connection tightness of insulation cap product through the increase of the number of threads, avoid the risk of falling. DRAWINGS

[0016] Figure 1 It is the main view of the insulation base adapted to the utility model;

[0017] Figure 2 It is the perspective view of the insulation cap under the prior art;

[0018] Figure 3 It is the main view of the utility model;

[0019] Figure 4 It is Figure 3 Longitudinal section view;

[0020] In the drawing: 1 - hemispherical threaded part, 2 - nut engaging part, 3 - base fitting part, 4 - bolt, 5 - nut, 6 - base. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] An insulation cap, (as Figure 3 Shown) has the hemispherical threaded part 1, nut engaging part 2 and base fitting part 3 of one-piece from top to bottom. The utility model solves the problem that the existing insulation cap is easy to fall off by increasing the nut engaging part 2, and the connection firmness is increased. The design of nut engaging part 2 allows the nut engaging part 2 to be adapted to the nut in the insulation base, and provides another reliable connection mode. The flexibility of nut engaging part 2 makes the insulation cap can adapt to different specifications and types of insulation base, improves the versatility and applicability of the insulation cap.

[0023] In the above embodiments, further: the insulating cap is a silicone rubber material insulating cap. The utility model discloses a material selection is silicone rubber material, solves the problem that the existing PPO insulating cap is easy to crack. It should be noted that: the insulating cap of silicone rubber material has the performance of high temperature resistance, weather resistance, excellent electrical insulation performance. The utility model further improves the material on the basis of structure improvement, effectively reduces the line inspection personnel and time and improves the train operation safety.

[0024] In the foregoing embodiments, it should be understood that: (in combination Figure 1 、 Figure 3 、 Figure 4 ) the hemispherical threaded part 1 is screwed and matched with the bolt 4 in the insulating base; the nut engaging part 2 is engaged and matched with the nut 5 in the insulating base; the product matching degree of the insulating cap is improved. The base sleeve part 3 is sleeved and matched with the base 6 in the insulating base. The engagement and matching of the nut engaging part 2 and the nut 5 provide a double locking mechanism for the insulating cap, that is, even if the threaded connection is loose due to vibration or other factors, the nut engaging part 2 can provide additional support and fixation to ensure the stability of the connection. The close fit of the nut engaging part 2 and the nut 5 can resist vibration and impact, preventing the insulating cap from loosening or falling off after long-term operation due to vibration.

[0025] In any of the foregoing embodiments, the nut engaging part 2 is an internal hexagonal structure. When the nut engaging part 2 is an internal hexagonal structure, the internal hexagonal structure of the nut engaging part 2 is used to match the nut standard part of the city rail transit straddle-type monorail system contact rail insulating base.

[0026] In any of the foregoing embodiments, further: the nut engaging part 2 has a taper. The utility model discloses that the nut engaging part 2 is made with a certain taper, the connection is more closely, the anti-falling effect is further improved, and the connection is more reliable. This close contact helps to prevent loosening and falling off, especially in a vibrating or impacting environment, the taper design can provide better anti-loosening performance. The taper design can increase the friction between the nut engaging part 2 and the nut 5, thereby improving the pull-out resistance.

[0027] In any of the foregoing embodiments, further: the number of threads of the hemispherical threaded part 1 is greater than or equal to the number of threads of the exposed part of the bolt 4. By increasing the number of threads, the connection tightness of the insulating cap product is further improved. Increasing the number of threads means increasing the contact area and engagement points between the threads and the bolt, which can significantly improve the tensile strength and shear strength of the connection. More thread engagement points help to form a tighter locking mechanism, thereby more effectively resisting loosening caused by vibration and impact. Although increasing the number of threads may slightly increase the number of rotation turns during installation, it also provides more reliable thread engagement and more stable connection.

[0028] The various embodiments in the specification are described in a related manner, and the same and similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0029] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification and equivalent replacement within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An insulating cap characterized by: The half-sphere threaded part (1), the nut engaging part (2) and the base fitting part (3) are integrally formed from top to bottom.

2. The insulating cap of claim 1, wherein: The insulating cap is made of silicone rubber.

3. The insulating cap of claim 1, wherein: The half-sphere threaded part (1) is screwed with a bolt (4) in the insulating base; the nut engaging part (2) is engaged with a nut (5) in the insulating base; and the base fitting part (3) is fitted with a base (6) in the insulating base.

4. The insulating cap of claim 1 or 3, wherein: The nut engaging part (2) is in an inner hexagonal structure.

5. The insulating cap of claim 1 or 3, wherein: The nut engaging part (2) has a taper.

6. The insulating cap of claim 1 or 3, wherein: The number of threads of the half-sphere threaded part (1) is greater than or equal to the number of threads of the exposed part of the bolt (4).

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