Insulating pull rod and connecting assembly with insulating pull rod

Abstract

The utility model relates to the field of electrical element operating members, in particular to an insulating pull rod and a connecting assembly with the insulating pull rod. The insulating pull rod comprises an insulating rod, the end portion of at least one end of the insulating rod is provided with a fastener penetrating hole used for a fastener to penetrate through and used for being connected with other components, and the fastener penetrating holes intersect or intersect at the axis of the insulating rod in different planes. At least one end of the insulating rod is provided with the fastener through hole, so that the insulating pull rod can be conveniently connected with other parts, and at the moment, the insulating pull rod is directly used for connection instead of a metal joint, so that the occupied length of an insulating part on the insulating pull rod is increased, and the length of the insulating pull rod can be smaller on the premise of keeping the same insulating distance; therefore, the problems that the whole size of the insulating pull rod is increased and the insulating pull rod is not suitable for occasions with high requirements on the size due to the fact that the two ends of the insulating pull rod are provided with metal joints in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the field of electrical component operating parts, in particular to an insulating pull rod and a connecting assembly with the insulating pull rod. Background Art

[0002] Gas Insulated Metal-enclosed Switchgear (GIS) can be manufactured in modular form and is widely used due to its adaptability. GIS usually contains electrical components that directly supply current and operating mechanisms that manipulate electrical components to move to open and close the switch. For safety reasons, the operating mechanism must maintain a zero potential state. Therefore, an insulating pull rod is usually provided between the operating mechanism and the electrical components to transmit the operating motion and keep the operating mechanism insulated.

[0003] like Figure 1 As shown, when the insulating pull rod is in use, the two ends are generally used to connect the operating mechanism and the crank arm that controls the movement of the electrical parts. In order to increase the strength of the insulating pull rod, the insulating pull rod generally includes an insulating rod 21 in the middle and joints 22 at both ends. The joints 22 are metal joints made of metal. The joints extend into the hollow part of the insulating rod and combine with the insulating rod to disperse the torque. Then, the metal pull rod 1 is connected to the crank arm 7 through a pin shaft passing through the metal joint.

[0004] However, the joint is made of metal and naturally has no insulation ability. That is to say, the insulation distance of the insulating rod is actually the length of the insulating rod minus the length of the joint extending into the insulating rod. The use of the joint increases the overall size of the insulating rod and is not suitable for occasions with size requirements. Utility Model Content

[0005] The purpose of the utility model is to provide an insulating pull rod, which is used to solve the problem in the prior art that both ends of the insulating pull rod have metal joints, which increases the overall size of the insulating pull rod and is not suitable for occasions with high requirements on size; the purpose of the utility model is also to provide a connecting assembly with an insulating pull rod, which is used to solve the above-mentioned technical problems.

[0006] In order to achieve the above purpose, the insulating pull rod in the utility model adopts the following technical solution:

[0007] An insulating pull rod comprises an insulating rod, wherein the insulating rod is a hollow long rod made of insulating material, and a fastener through-hole for fasteners to pass through and for connecting with other components is arranged on the end of at least one end of the insulating rod, the fastener through-hole intersects or intersects at different planes with the axis of the insulating rod and is arranged on one end of the insulating rod facing the crank arm when in use.

[0008] Furthermore, the fastener through hole intersects with the axis of the insulating rod and remains perpendicular.

[0009] The beneficial effect of the insulating pull rod in the utility model is that the utility model improves the insulating pull rod in the prior art, and by arranging a fastener through-hole on at least one end of the insulating rod, it is convenient to connect with other components. At this time, since no metal joint is provided but the insulating rod is directly used for connection, the length occupied by the insulation on the insulating pull rod is increased, and the length of the insulating pull rod can be made smaller while maintaining the same insulation distance, thereby solving the problem that the insulating pull rod in the prior art has metal joints at both ends, which increases the overall size of the insulating pull rod and is not suitable for occasions with high requirements on size.

[0010] In order to achieve the above-mentioned purpose, the connection assembly with insulating pull rod in the utility model adopts the following technical solution:

[0011] A connection assembly with an insulating pull rod comprises the insulating pull rod and metal pull rods and crank arms located at both ends of the insulating pull rod, the insulating pull rod comprises an insulating rod, the insulating rod is a hollow long rod made of insulating material, at least one of the pull rod and the crank arm is provided with a receiving portion for placing the end of the insulating rod of the insulating pull rod, the end of the insulating rod located in the receiving portion is provided with a fastener through-hole for fasteners to pass through, the fastener through-holes intersect or intersect at different planes with the axis of the insulating rod and are provided on one end of the insulating rod facing the crank arm when in use, the side wall of the receiving portion is connected to the fastener so that the receiving portion is hingedly connected to the end of the insulating pull rod.

[0012] Furthermore, a bushing is arranged in the through hole of the fastener, and the fastener is arranged inside the bushing.

[0013] Furthermore, the accommodation portion is a U-shaped groove, the width of the U-shaped groove is greater than the outer diameter of the insulating rod, and a gasket is provided between the inner wall of the accommodation portion and the outer wall of the insulating rod.

[0014] Furthermore, the accommodation portion is arranged on the crank arm, and the accommodation portion of the crank arm is also provided with a connecting hole for the fastener to pass through.

[0015] Furthermore, the fastener is a pin, and a clamping ring is provided on the outer portion of the pin located at the accommodating portion.

[0016] Furthermore, the fastener through hole intersects with the axis of the insulating rod and remains perpendicular.

[0017] The beneficial effects of the connection assembly with an insulating pull rod in the utility model are as follows: the utility model improves the connection assembly with an insulating pull rod in the prior art, and facilitates the connection with the insulating pull rod by arranging a receiving portion on at least one of the metal pull rod and the crank arm; facilitates the connection with other components by arranging a fastener through-hole on at least one end of the insulating rod; and facilitates the adaptation with the insulating pull rod by arranging a pull rod or a crank arm with an accommodating portion. At this time, since no metal joint is provided but the insulating rod is directly used for connection, the length occupied by the insulation on the insulating pull rod is increased, and the length of the insulating pull rod can be made smaller while maintaining the same insulation distance, thereby solving the problem in the prior art that the insulating pull rod has metal joints at both ends, which increases the overall size of the insulating pull rod and is not suitable for occasions with high requirements on size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a connection assembly with an insulating pull rod in the prior art;

[0019] Figure 2 It is a structural schematic diagram of a connection assembly with an insulating pull rod in the utility model.

[0020] In the figure: 1. metal pull rod; 21. insulating rod; 22. joint; 3. bushing; 4. pin; 5. clamping ring; 6. gasket; 7. crank arm. DETAILED DESCRIPTION

[0021] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0022] In the utility model, a fastener through hole for fasteners to pass through is directly provided on the insulating rod of the insulating pull rod, so as to facilitate direct connection with a crank arm or a pull rod, and the length of the insulating pull rod can be made shorter while maintaining the same insulation distance.

[0023] In the embodiment 1 of the connection assembly with an insulating pull rod (hereinafter referred to as the connection assembly) of the present utility model:

[0024] like Figure 2 As shown, the connecting assembly in this embodiment includes a metal pull rod 1, an insulating pull rod and a crank arm 7, wherein the metal pull rod 1 and the insulating pull rod, as well as the insulating pull rod and the crank arm 7 are respectively hingedly connected, so that under the drive of the metal pull rod 1, the insulating pull rod can drive the crank arm 7 to move.

[0025] The insulating pull rod includes an insulating rod 21 and a joint 22 for connecting to the metal pull rod 1. The insulating rod 21 is a hollow long rod made of insulating material. One end of the joint 22 extends into the rod body of the insulating rod 21, and the other end extends out of the rod body of the insulating rod 21. A hinged through hole is formed on the end extending out of the insulating rod 21 for hinged connection with the metal pull rod 1.

[0026] A fastener through hole for fasteners to pass through is provided on one end of the insulating rod 21 facing the crank arm 7. The fastener through hole is perpendicular to the axis of the insulating rod 21 and passes through the axis of the insulating rod 21. The crank arm 7 is provided with a receiving portion for the end of the insulating rod 21 to be placed. Specifically, the receiving portion is a U-shaped groove. After the end of the insulating rod 21 is placed, the fastener is passed through the insulating rod 21 and connected to the side wall of the receiving portion. A structure for connecting fasteners is provided on the groove side wall of the U-shaped groove. In this embodiment, connecting holes for fasteners to pass through are provided on the groove side walls on both sides of the U-shaped groove. The fastener is a pin 4, and the two ends of the pin 4 pass through the connecting holes. A clamping ring 5 is provided on the portion of the pin 4 located outside the receiving portion to prevent the pin 4 from slipping out. Of course, in other embodiments, a through hole can be provided on one side of the groove side wall of the U-shaped groove, and a blind hole can be provided on the other side. Of course, in other embodiments, the fastener may be a bolt, the threaded section of the bolt is passed through the receiving portion, and a nut is arranged outside the receiving portion to complete the connection. In other embodiments, the fastener through-hole on the insulating rod may no longer directly intersect with the axis of the insulating rod, but may be skewed or perpendicular.

[0027] In order to protect the insulating rod 21, a bushing 3 is also provided in the fastener perforation of the insulating rod 21, and the pin 4 is provided inside the bushing 3, that is, the pin 4 does not directly contact the insulating rod 21, but transmits the force to the insulating rod 21 through the bushing 3, thereby making the distribution of the force on the insulating rod 21 more uniform, which is beneficial to the protection of the insulating rod 21. At the same time, in order to protect the outer wall of the insulating rod 21, the width of the U-shaped groove of the crank arm 7 is set to be greater than the outer diameter of the insulating rod 21, and a gasket 6 is also provided between the inner wall of the accommodating portion and the outer wall of the insulating rod 21. Of course, in other embodiments, if the strength of the insulating rod 21 is relatively large, the bushing 3 and the gasket 6 may no longer be provided. Alternatively, in other embodiments, a metal joint 22 may be provided between the insulating pull rod and the crank arm 7, and a fastener connection hole may be provided at one end of the insulating rod 21 facing the metal pull rod 1.

[0028] In the embodiment of the insulating pull rod in the present invention, the structure of the insulating pull rod in this embodiment is the same as that of the insulating pull rod in the connecting assembly with the insulating pull rod in the above embodiment, and will not be repeated here.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. An insulating pull rod, comprising an insulating rod, characterized in that: The insulating rod is a hollow long rod made of insulating material. A fastener through hole is provided on at least one end of the insulating rod for fasteners to pass through and for connecting with other components. The fastener through hole intersects or intersects at different planes with the axis of the insulating rod and is provided on one end of the insulating rod facing the crank arm when in use.

2. The insulating pull rod according to claim 1, characterized in that: The fastener through hole intersects with the axis of the insulating rod and remains perpendicular.

3. A connection assembly with an insulating pull rod, comprising an insulating pull rod and metal pull rods and crank arms at both ends of the insulating pull rod, wherein the insulating pull rod comprises an insulating rod, and is characterized in that: The insulating rod is a hollow long rod made of insulating material. At least one of the pull rod and the crank arm is provided with a receiving portion for placing the end of the insulating rod of the insulating pull rod. The end of the insulating rod located in the receiving portion is provided with a fastener through-hole for passing a fastener. The fastener through-hole intersects or intersects with the axis of the insulating rod at different planes and is provided on one end of the insulating rod facing the crank arm when in use. The side wall of the receiving portion is connected to the fastener so that the receiving portion is hingedly connected to the end of the insulating pull rod.

4. The connection assembly with insulating pull rod according to claim 3, characterized in that: A bushing is arranged in the through hole of the fastener, and the fastener is arranged inside the bushing.

5. The connection assembly with insulating pull rod according to claim 3 or 4, characterized in that: The accommodating portion is a U-shaped groove, the width of the U-shaped groove is greater than the outer diameter of the insulating rod, and a gasket is arranged between the inner wall of the accommodating portion and the outer wall of the insulating rod.

6. The connection assembly with insulating pull rod according to claim 3 or 4, characterized in that: The accommodation portion is arranged on the crank arm, and a connecting hole for a fastener to pass through is also arranged on the accommodation portion of the crank arm.

7. The connection assembly with insulating pull rod according to claim 6, characterized in that: The fastener is a pin, and a clamping ring is arranged on the outer portion of the pin located at the accommodating portion.

8. The connection assembly with insulating pull rod according to claim 3 or 4, characterized in that: The fastener through hole intersects with the axis of the insulating rod and remains perpendicular.

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