Wear-resistant base of contactor

Abstract

The abrasion-resistant base of the contactor comprises a base body, a sliding groove is formed in the base body, connecting bosses are arranged on the two sides of the sliding groove, abrasion-resistant parts which are in matched contact sliding with a contact support are arranged on the connecting bosses in a clamped mode, and a gap which is in matched sliding with the contact support is formed between the abrasion-resistant parts of the connecting bosses arranged on the two sides of the sliding groove. The beneficial effects of the utility model are that the wear-resistant part is arranged in the chute on the base, so that the weight of the contact support is not influenced, and the weight of the contact support is too large, so that the kinetic energy required by the contactor during power-on and power-off is increased, and the wear-resistant part is arranged on the base, so that the kinetic energy required by the contactor during power-on and power-off can be reduced, and the service life of the contactor is prolonged. Therefore, the energy-saving effect is achieved; the wear-resistant part and the connecting boss are connected in a clamping mode, so that a metal fastener is not needed, the safety is improved, and the risk of loosening and falling is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a wear-resistant base of a contactor. Background Art

[0002] The contact support is an important part of the contactor. It is usually set in the slide groove in the contactor base and moves in the slide groove. A moving contact is usually fixed on the contact support. When the contact support slides in the slide groove, the moving contact fixed on it contacts with the static contact fixed on the contactor base, thereby achieving the effect of switching on and off. However, the contact support will inevitably wear out during the sliding process in the contactor base.

[0003] Chinese patent document CN218602348U discloses a contact support for a contactor, comprising a bracket body for mounting a main contact and a buckle strip fixed to the contact support by bolts, wherein the buckle strip is provided with ribs parallel to the movement direction of the contactor, and when the contact support is mounted in cooperation with the base of the contactor, a gap is formed between the ribs and the base of the contactor in the movement direction.

[0004] However, the above scheme has the following disadvantages: the buckle strip is fixed to the contact support by bolts, which makes the assembly of the contact support inconvenient and makes the contact support structure more complicated; and the installation by bolts will not only become loose after long-term use, but also reduce the safety of the contactor due to the conductive properties of the bolts themselves. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a wear-resistant base for a contactor which has a simple structure and a more reliable and safe connection.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a wear-resistant base of a contactor, including a base, a slide groove is provided on the base, connecting bosses are provided on both sides of the slide groove, wear-resistant parts that cooperate with contact supports and slide are clamped on the connecting bosses, and a gap that cooperates with the contact supports and slides is formed between the wear-resistant parts of the connecting bosses on both sides of the slide groove.

[0007] The beneficial effects of the utility model are as follows: the wear-resistant parts are arranged in the slide groove on the base, so as not to affect the weight of the contact support. If the weight of the contact support is too large, the kinetic energy required for the contactor to switch on and off will increase. Therefore, arranging the wear-resistant parts on the base can reduce the kinetic energy required for the contactor to switch on and off, thereby having the effect of energy saving; the wear-resistant parts are connected to the connecting bosses by snapping, so that there is no need to use metal fasteners, thereby improving safety and preventing the risk of loosening and falling off.

[0008] Furthermore, a limiting groove and a limiting rib are provided between the connecting boss and the wear-resistant part, and the limiting groove and the limiting rib cooperate to prevent the wear-resistant part from lateral displacement.

[0009] The limiting groove and the limiting rib can be respectively arranged on the connecting boss and the wear-resistant part, or respectively arranged on the wear-resistant part and the connecting boss. The limiting groove can be arranged on the connecting boss along the longitudinal extension to increase the stability of the clamping between the limiting groove and the limiting rib, thereby better preventing the wear-resistant part from lateral displacement.

[0010] Furthermore, a limiting boss is provided at one end of the wear-resistant part in the longitudinal direction, and a limiting hole is provided at the connecting boss corresponding to the limiting boss, and the limiting boss is embedded in the limiting hole to limit the lateral displacement of the wear-resistant part.

[0011] The limiting boss is clamped in the limiting hole to prevent the wear-resistant part from lateral displacement, and the limiting boss and the limiting hole can be used together with the limiting rib and the limiting groove to achieve a better lateral limiting effect.

[0012] Furthermore, a snap hole is provided in the limiting hole, a hook matching the snap hole is provided on the limiting boss, a snap connector is provided at the other longitudinal end of the wear-resistant part, a snap hole is provided on the connecting boss corresponding to the snap connector, the snap connector is inserted in the snap hole and cooperates with the hook to limit the longitudinal displacement of the wear-resistant part.

[0013] Arranging the hook and the buckle hole on the limiting hole and the limiting boss respectively can save space and make the base structure more compact; and the hook cooperates with the connecting piece at the other end of the wear-resistant part to prevent the wear-resistant part from longitudinally deviating.

[0014] Furthermore, arcuate surfaces are provided on both end surfaces of the wear-resistant part in the longitudinal direction, and the arcuate surfaces are arranged toward the direction in which the wear-resistant part contacts with the contact support.

[0015] The arcuate surfaces arranged on the two longitudinal end surfaces of the wear-resistant part can not only play a guiding role when the contact support is installed; but also when the contact support slides in the slide groove, these two arcuate surfaces can reduce the wear between the contact support and the right-angled sharp corners, thereby improving the wear resistance of the wear-resistant part.

[0016] Furthermore, the connecting bosses arranged on both sides of the slide groove are arranged in a mirror image.

[0017] The connection bosses arranged in a mirror image can better cooperate with the contact support to slide, so that the contact support can slide more smoothly in the slide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric view of the front side of the embodiment of the utility model;

[0019] Figure 2 It is an axonometric view of the reverse side of the embodiment of the utility model;

[0020] Figure 3 This is a cross-sectional view of the connecting boss of an embodiment of the utility model;

[0021] Figure 4 It is an axonometric view of the wear-resistant part of the embodiment of the utility model;

[0022] Figure 5 It is a side view of the wear-resistant part of the embodiment of the utility model; DETAILED DESCRIPTION

[0023] It should be noted that the longitudinal direction mentioned in this embodiment refers to the direction in which the contact support (not shown in the figure) slides up and down in the slide groove 11, and the transverse direction refers to the direction perpendicular to the longitudinal direction.

[0024] The utility model embodiment of a wear-resistant base of a contactor is as follows Figure 1-5 As shown, it includes a base 1, a slide groove 11 is provided at the center of the base 1, and two connecting bosses 12 are provided on both sides of the slide groove 11 in a mirror-symmetrical manner, and there are two connecting bosses 12 on each side of the slide groove 11. A limiting groove 121 is provided along the longitudinal direction on the end surface of the connecting boss 12 on one side of the slide groove 11 facing the other connecting boss 12; a limiting hole 122 and a snap-fit ​​hole 124 are respectively provided on the two end surfaces of the connecting boss 12 along the longitudinal direction, and a snap-fit ​​hole 123 is also provided in the limiting hole 122.

[0025] Correspondingly, each connecting boss 12 is provided with a wear-resistant part 2 that is engaged with it. The wear-resistant part 2 is used to limit its lateral displacement by a limiting rib 21 engaged in the limiting groove 121 and a limiting boss 22 engaged in the limiting hole 122. After the limiting boss 22 is connected to one end of the wear-resistant part 2 along the longitudinal direction, the cross-section of the end face is T-shaped. Therefore, when the limiting boss 22 is engaged in the limiting hole 122, its two lateral sides can be blocked by the limiting hole 122, so as to cooperate with the limiting rib 21 engaged in the limiting groove 121 to better prevent it from lateral displacement. The wear-resistant part 2 is provided with a hook 221 which is locked in the buckle hole 123 and arranged on the limiting boss 22, and a buckle hole 124 which is arranged on the other end of the wear-resistant part 2 in the longitudinal direction and is locked in the buckle hole 124. The hook 221 and the buckle hole 124 arranged at both ends of the wear-resistant part 2 in the longitudinal direction can prevent the wear-resistant part 2 from deviating in the longitudinal direction. The wear-resistant part 2 arranged on the connecting boss 12 on one side is provided with a flat surface 25 arranged in the longitudinal direction for matching and contacting with the contact support (not shown in the figure) facing the other wear-resistant part 2, and both ends of the flat surface 25 are provided with arc surfaces 24.

[0026] After the embodiment is clamped on the connecting boss 12, a contact support (not shown in the figure) is formed between the two flat surfaces 25 for the contact support (not shown in the figure) to slide in cooperation therein, that is, when the contact support (not shown in the figure) slides in the slide groove 11, it only contacts the flat surfaces 25 of the four wear-resistant parts 2 located on both sides of the slide groove 11. And because the wear-resistant parts 2 are connected to the connecting boss 12 by the clamping direction, their lateral and longitudinal offsets are limited, so during the sliding process of the contact support (not shown in the figure), the wear-resistant parts 2 will not move in position. More importantly, the arcuate surfaces 24 arranged at both ends of the flat surface 25 will not be clamped on the contact support (not shown in the figure) due to the offset of the position of the contact support (not shown in the figure) during the sliding process of the contact support (not shown in the figure) to affect its sliding, so that the contact support (not shown in the figure) can slide more smoothly.

[0027] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A wear-resistant base of a contactor, comprising a base, wherein a slide groove is provided on the base, and wherein: Both sides of the slide groove are provided with connecting bosses, and wear-resistant parts that cooperate with the contact support and slide are clamped on the connecting bosses. A gap that cooperates with the contact support and slides is formed between the wear-resistant parts of the connecting bosses on both sides of the slide groove.

2. The wear-resistant base of the contactor according to claim 1, characterized in that: A limiting groove and a limiting rib are provided between the connecting boss and the wear-resistant part, and the limiting groove and the limiting rib cooperate to prevent the wear-resistant part from lateral displacement.

3. The wear-resistant base of the contactor according to claim 1 or 2, characterized in that: A limiting boss is provided at one end of the wear-resistant part along the longitudinal direction, and a limiting hole is provided on the connecting boss corresponding to the limiting boss. The limiting boss is embedded in the limiting hole to limit the lateral displacement of the wear-resistant part.

4. The wear-resistant base of the contactor according to claim 3, characterized in that: A snap hole is provided in the limiting hole, a hook matching the snap hole is provided on the limiting boss, a snap connector is provided at the other longitudinal end of the wear-resistant part, a snap hole is provided on the connecting boss corresponding to the snap connector, the snap connector is inserted in the snap hole and cooperates with the hook to limit the longitudinal displacement of the wear-resistant part.

5. The wear-resistant base of the contactor according to claim 1, characterized in that: The two end surfaces of the wear-resistant part in the longitudinal direction are both provided with arc-shaped surfaces, and the arc-shaped surfaces are arranged toward the direction in which the wear-resistant part contacts with the contact support.

6. The wear-resistant base of the contactor according to claim 1, characterized in that: The connecting bosses arranged on both sides of the slide groove are arranged in a mirror image.

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